:root {
  --bg: #edf3f7;
  --bg-strong: #fbfdff;
  --surface: rgba(255, 255, 255, 0.88);
  --surface-strong: #ffffff;
  --surface-border: rgba(18, 43, 58, 0.11);
  --text: #102334;
  --muted: #5d7283;
  --accent: #127e92;
  --accent-strong: #0a5c71;
  --accent-soft: rgba(18, 126, 146, 0.12);
  --shadow: 0 22px 64px rgba(20, 49, 64, 0.12);
  --radius-xl: 28px;
  --radius-lg: 20px;
  --radius-md: 14px;
  --radius-sm: 10px;
  --max-width: 1320px;
  --transition: 180ms ease;
  --transition-smooth: 280ms cubic-bezier(0.22, 1, 0.36, 1);
  --transition-slow: 420ms cubic-bezier(0.19, 1, 0.22, 1);
}

body[data-theme="dark"] {
  --bg: #071019;
  --bg-strong: #0b1622;
  --surface: rgba(12, 21, 33, 0.9);
  --surface-strong: #101b2a;
  --surface-border: rgba(120, 170, 208, 0.16);
  --text: #ecf5fb;
  --muted: #93a8bb;
  --accent: #56d1ee;
  --accent-strong: #ffb07b;
  --accent-soft: rgba(86, 209, 238, 0.14);
  --shadow: 0 26px 72px rgba(0, 0, 0, 0.5);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-height: 100vh;
  font-family: "Outfit", sans-serif;
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  color: var(--text);
  background:
    radial-gradient(circle at top left, rgba(15, 124, 144, 0.17), transparent 28%),
    radial-gradient(circle at top right, rgba(110, 164, 182, 0.16), transparent 24%),
    radial-gradient(circle at bottom right, rgba(188, 206, 219, 0.2), transparent 26%),
    linear-gradient(180deg, var(--bg-strong), var(--bg));
  animation: pageFadeIn var(--transition-slow) both;
}

body.is-nav-open {
  overflow: hidden;
}

body.is-nav-open::after {
  content: "";
  position: fixed;
  inset: 0;
  z-index: 90;
  background: transparent;
  pointer-events: none;
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.04) 1px, transparent 1px);
  background-size: 36px 36px;
  mask-image: radial-gradient(circle at center, black 38%, transparent 85%);
  opacity: 0.25;
}

a {
  color: inherit;
  text-decoration: none;
}

:focus-visible {
  outline: 3px solid rgba(44, 166, 178, 0.45);
  outline-offset: 3px;
}

button,
input,
select,
textarea {
  font: inherit;
}

button {
  cursor: pointer;
}

img {
  max-width: 100%;
  display: block;
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

.skip-link {
  position: fixed;
  top: 16px;
  left: 16px;
  z-index: 160;
  padding: 12px 16px;
  border-radius: 999px;
  background: var(--accent);
  color: #fffaf5;
  box-shadow: var(--shadow);
  transform: translateY(-140%);
  transition: transform var(--transition);
}

.skip-link:focus {
  transform: translateY(0);
}

.site-notifications {
  position: fixed;
  top: 24px;
  right: 24px;
  z-index: 260;
  display: grid;
  gap: 12px;
  width: min(360px, calc(100vw - 32px));
  pointer-events: none;
}

.site-toast {
  display: grid;
  grid-template-columns: 10px minmax(0, 1fr) auto;
  align-items: center;
  gap: 12px;
  padding: 14px 14px 14px 12px;
  border-radius: 18px;
  border: 1px solid var(--surface-border);
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.82), rgba(255, 255, 255, 0.62)),
    var(--surface);
  box-shadow: var(--shadow);
  backdrop-filter: blur(18px);
  opacity: 0;
  transform: translateY(-10px) scale(0.98);
  transition: opacity var(--transition-smooth), transform var(--transition-smooth);
  pointer-events: auto;
}

.site-toast.is-visible {
  opacity: 1;
  transform: translateY(0) scale(1);
}

.site-toast.is-leaving {
  opacity: 0;
  transform: translateY(-6px) scale(0.98);
}

.site-toast-indicator {
  width: 10px;
  height: 100%;
  min-height: 42px;
  border-radius: 999px;
  background: var(--accent);
  box-shadow: 0 0 18px rgba(18, 126, 146, 0.24);
}

.site-toast.is-success .site-toast-indicator {
  background: linear-gradient(180deg, #27d3b0, #149779);
  box-shadow: 0 0 18px rgba(39, 211, 176, 0.28);
}

.site-toast.is-error .site-toast-indicator {
  background: linear-gradient(180deg, #ff8c7d, #e35848);
  box-shadow: 0 0 18px rgba(227, 88, 72, 0.26);
}

.site-toast-copy {
  color: var(--text);
  font-weight: 600;
  line-height: 1.45;
}

.site-toast-close {
  width: 34px;
  height: 34px;
  border: 0;
  border-radius: 999px;
  background: rgba(18, 43, 58, 0.08);
  color: var(--muted);
  font-size: 1.1rem;
  transition: background var(--transition), color var(--transition), transform var(--transition);
}

.site-toast-close:hover,
.site-toast-close:focus-visible {
  background: rgba(18, 126, 146, 0.16);
  color: var(--accent-strong);
  transform: scale(1.03);
}

[data-state="success"] {
  color: #13866d;
}

[data-state="error"] {
  color: #d85b4c;
}

[data-state="info"] {
  color: var(--accent-strong);
}

body[data-theme="dark"] .site-toast {
  background:
    linear-gradient(180deg, rgba(13, 22, 34, 0.92), rgba(13, 22, 34, 0.82)),
    var(--surface);
  border-color: rgba(120, 170, 208, 0.18);
  box-shadow: 0 24px 70px rgba(0, 0, 0, 0.45);
}

body[data-theme="dark"] .site-toast-close {
  background: rgba(255, 255, 255, 0.06);
  color: #c5d7e5;
}

body[data-theme="dark"] [data-state="success"] {
  color: #52ddbd;
}

body[data-theme="dark"] [data-state="error"] {
  color: #ff9b89;
}

body[data-theme="dark"] [data-state="info"] {
  color: #85def4;
}

@media (max-width: 720px) {
  .site-notifications {
    top: 14px;
    right: 14px;
    left: 14px;
    width: auto;
  }

  .site-toast {
    grid-template-columns: 8px minmax(0, 1fr) auto;
    padding: 12px;
    border-radius: 16px;
  }
}

.site-shell {
  width: min(calc(100% - 32px), var(--max-width));
  margin: 0 auto;
  padding: 24px 0 56px;
  position: relative;
  z-index: 1;
}

.home-aurora,
.home-particles {
  position: fixed;
  inset: 0;
  pointer-events: none;
}

.home-aurora {
  z-index: -2;
  background:
    radial-gradient(circle at 16% 18%, rgba(17, 122, 139, 0.14), transparent 24%),
    radial-gradient(circle at 82% 14%, rgba(97, 185, 197, 0.14), transparent 22%),
    radial-gradient(circle at 74% 72%, rgba(141, 181, 196, 0.08), transparent 24%);
}

.home-particles {
  z-index: -1;
}

.site-header {
  position: sticky;
  top: 16px;
  z-index: 10;
  isolation: isolate;
  overflow: visible;
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  align-items: center;
  gap: 16px;
  padding: 14px 16px;
  border: 1px solid var(--surface-border);
  border-radius: 18px;
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.72), rgba(255, 255, 255, 0.42)),
    var(--surface);
  backdrop-filter: blur(18px);
  box-shadow: var(--shadow), 0 0 0 1px rgba(255, 255, 255, 0.3);
  transition: transform var(--transition-smooth), box-shadow var(--transition-smooth), border-color var(--transition-smooth), background var(--transition-smooth);
}

.site-header::after {
  content: "";
  position: absolute;
  inset: auto 18px 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.35), transparent);
  opacity: 0;
  transition: opacity var(--transition);
}

.site-header:hover {
  box-shadow: 0 26px 64px rgba(20, 49, 64, 0.16), 0 0 0 1px rgba(255, 255, 255, 0.34);
}

.site-header:hover::after {
  opacity: 1;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  min-width: 0;
  transition: transform var(--transition-smooth);
}

.brand-mark {
  width: 42px;
  height: 42px;
  display: grid;
  place-items: center;
  border-radius: 12px;
  background: linear-gradient(135deg, var(--accent), #54b5c7);
  color: #fff9f4;
  font-family: "Space Grotesk", sans-serif;
  font-weight: 700;
  box-shadow: 0 10px 24px rgba(17, 122, 139, 0.18);
  transition: transform var(--transition-smooth), box-shadow var(--transition-smooth), filter var(--transition-smooth);
}

.brand:hover {
  transform: translateY(-1px);
}

.brand:hover .brand-mark {
  transform: translateY(-1px) scale(1.03);
  box-shadow: 0 16px 32px rgba(17, 122, 139, 0.24);
  filter: saturate(1.06);
}

.brand strong,
.brand small {
  display: block;
}

.brand strong {
  font-size: 1rem;
}

.brand small {
  font-size: 0.78rem;
}

.brand small,
.eyebrow,
.status-pill,
.meta-row,
.card-meta,
.detail-meta {
  color: var(--muted);
}

.with-icon {
  display: inline-flex;
  align-items: center;
  gap: 10px;
}

.with-icon .fa-solid,
.with-icon .fa-regular,
.with-icon .fa-brands {
  width: 1.05em;
  text-align: center;
  flex-shrink: 0;
}

.nav-link .fa-solid,
.nav-parent .fa-solid,
.nav-sublink .fa-solid {
  color: var(--accent-strong);
}

.footer-heading.with-icon .fa-solid,
.footer-links a .fa-solid,
.header-actions a .fa-solid,
.global-search-submit .fa-solid,
.theme-toggle .fa-solid {
  color: currentColor;
}

.site-nav {
  display: flex;
  justify-content: flex-start;
  align-items: center;
  gap: 2px;
  flex-wrap: nowrap;
  min-width: 0;
}

.nav-drawer {
  flex: 1 1 auto;
  min-width: 0;
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(210px, 270px) auto;
  align-items: center;
  gap: 10px;
  position: relative;
}

.nav-link,
.nav-parent,
.nav-sublink {
  padding: 9px 12px;
  min-height: 40px;
  font-size: 0.92rem;
  border-radius: 999px;
  color: inherit;
  text-decoration: none;
  transition: background var(--transition), color var(--transition), transform var(--transition);
}

.nav-link,
.nav-parent {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  background: transparent;
  border: 0;
  position: relative;
}

.nav-link:hover,
.nav-link.is-active,
.nav-group.is-active > .nav-parent,
.nav-group:hover > .nav-parent {
  background:
    radial-gradient(circle at top center, rgba(255, 255, 255, 0.14), transparent 72%),
    var(--accent-soft);
  color: var(--accent-strong);
  transform: translateY(-1px);
  box-shadow:
    inset 0 1px 0 rgba(255, 255, 255, 0.2),
    0 10px 20px rgba(15, 124, 144, 0.1);
}

.nav-group {
  position: relative;
  z-index: 2;
}

.nav-caret {
  width: 8px;
  height: 8px;
  border-right: 2px solid currentColor;
  border-bottom: 2px solid currentColor;
  transform: rotate(45deg) translateY(-1px);
  transition: transform var(--transition);
}

.nav-group:hover .nav-caret,
.nav-group.is-open .nav-caret,
.nav-group.is-active .nav-caret {
  transform: rotate(225deg) translateY(-1px);
}

.nav-submenu {
  position: absolute;
  top: calc(100% + 10px);
  left: 0;
  min-width: 220px;
  padding: 12px;
  border: 1px solid var(--surface-border);
  border-radius: 20px;
  background: var(--bg-strong);
  box-shadow: 0 22px 50px rgba(20, 14, 10, 0.14);
  display: grid;
  gap: 6px;
  opacity: 0;
  visibility: hidden;
  transform: translateY(10px);
  transition: opacity var(--transition), transform var(--transition), visibility var(--transition);
}

.nav-group:hover .nav-submenu,
.nav-group.is-open .nav-submenu {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.nav-sublink {
  display: block;
  border-radius: 14px;
  position: relative;
}

.nav-sublink:hover,
.nav-sublink.is-active {
  background:
    radial-gradient(circle at top center, rgba(255, 255, 255, 0.12), transparent 72%),
    var(--accent-soft);
  color: var(--accent-strong);
  box-shadow:
    inset 0 1px 0 rgba(255, 255, 255, 0.16),
    0 8px 16px rgba(15, 124, 144, 0.08);
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-shrink: 0;
  justify-self: end;
}

.global-search {
  flex: 0 1 250px;
  min-width: 170px;
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 5px;
  border: 1px solid var(--surface-border);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.12);
  box-shadow:
    inset 0 1px 0 rgba(255, 255, 255, 0.24),
    0 10px 24px rgba(31, 57, 73, 0.09);
}

.brand,
.site-nav,
.global-search,
.header-actions {
  min-width: 0;
}

.global-search:focus-within {
  border-color: rgba(44, 166, 178, 0.35);
  box-shadow:
    0 0 0 3px rgba(44, 166, 178, 0.1),
    0 10px 26px rgba(36, 27, 20, 0.08);
}

.global-search-input {
  min-width: 0;
  flex: 1 1 auto;
  height: 34px;
  padding: 0 8px 0 10px;
  border: 0;
  background: transparent;
  box-shadow: none;
  font-size: 0.9rem;
  color: var(--text);
}

.global-search-input:focus {
  transform: none;
  border-color: transparent;
}

.global-search-input::placeholder {
  color: rgba(90, 113, 131, 0.72);
}

.global-search-submit {
  min-height: 34px;
  padding: 0 12px;
  flex-shrink: 0;
  font-size: 0.82rem;
  letter-spacing: 0.01em;
  box-shadow: none;
  border-radius: 999px;
}

.nav-toggle,
.theme-toggle,
.bookmark-button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  border: 1px solid var(--surface-border);
  background: var(--surface-strong);
  color: var(--text);
  border-radius: 999px;
  font-weight: 600;
  line-height: 1;
  transition: transform var(--transition), background var(--transition), color var(--transition), border-color var(--transition), box-shadow var(--transition), opacity var(--transition);
}

.nav-toggle {
  display: none;
  width: 46px;
  height: 46px;
  padding: 0;
  position: relative;
  place-items: center;
  overflow: hidden;
}

.nav-toggle span {
  position: absolute;
  left: 50%;
  display: block;
  width: 18px;
  height: 2.5px;
  border-radius: 999px;
  background: currentColor;
  transform-origin: center;
  transition: transform var(--transition), opacity var(--transition), width var(--transition), background var(--transition);
}

.nav-toggle span:nth-child(1) {
  transform: translate(-50%, -7px);
}

.nav-toggle span:nth-child(2) {
  width: 14px;
  transform: translate(-50%, 0);
}

.nav-toggle span:nth-child(3) {
  transform: translate(-50%, 7px);
}

.nav-toggle:hover span:nth-child(2),
.nav-toggle:focus-visible span:nth-child(2) {
  width: 18px;
}

.nav-toggle.is-open span:nth-child(1) {
  transform: translate(-50%, 0) rotate(45deg);
}

.nav-toggle.is-open span:nth-child(2) {
  opacity: 0;
  transform: translate(-50%, 0) scaleX(0.2);
}

.nav-toggle.is-open span:nth-child(3) {
  transform: translate(-50%, 0) rotate(-45deg);
}

.theme-toggle,
.bookmark-button {
  min-height: 42px;
  padding: 0 16px;
}

.theme-toggle:hover,
.bookmark-button:hover,
.nav-toggle:hover {
  transform: translateY(-1px);
  background: var(--accent-soft);
}

.bookmark-button.is-saved {
  background: var(--accent);
  color: #fffaf5;
  border-color: transparent;
}

.button,
.button-ghost {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  min-height: 44px;
  padding: 0 18px;
  border-radius: 999px;
  border: 1px solid transparent;
  font-weight: 600;
  font-size: 0.92rem;
  line-height: 1;
  white-space: nowrap;
  transition: transform var(--transition), background var(--transition), color var(--transition), border-color var(--transition), box-shadow var(--transition), opacity var(--transition);
}

.button {
  background: linear-gradient(135deg, var(--accent), #26a0b3);
  color: #f7fbfc;
  box-shadow: 0 12px 30px rgba(15, 124, 144, 0.22);
}

.button:hover {
  transform: translateY(-1px);
  background: linear-gradient(135deg, #2ca6b2, var(--accent-strong));
  color: #ffffff;
  box-shadow: 0 16px 32px rgba(15, 124, 144, 0.25);
}

.button-ghost {
  border-color: var(--surface-border);
  background: rgba(255, 255, 255, 0.44);
  color: var(--text);
}

.button-ghost:hover {
  transform: translateY(-1px);
  background: var(--accent-soft);
  border-color: rgba(15, 124, 144, 0.18);
}

.button:focus-visible,
.button-ghost:focus-visible,
.theme-toggle:focus-visible,
.bookmark-button:focus-visible,
.nav-toggle:focus-visible,
.global-search-submit:focus-visible {
  outline: none;
  box-shadow:
    0 0 0 3px rgba(44, 166, 178, 0.16),
    0 10px 24px rgba(15, 124, 144, 0.16);
}

.button:disabled,
.button-ghost:disabled,
.theme-toggle:disabled,
.bookmark-button:disabled,
.nav-toggle:disabled {
  opacity: 0.58;
  cursor: not-allowed;
  transform: none;
  box-shadow: none;
}

.header-actions .button-ghost,
.header-actions .theme-toggle {
  color: var(--text);
}

.section {
  margin-top: 32px;
}

.section-tight {
  margin-top: 18px;
}

.section-heading {
  display: flex;
  align-items: end;
  justify-content: space-between;
  gap: 16px;
  margin-bottom: 18px;
}

body:not([data-page="home"]) main.section > .section-heading:first-child {
  margin-bottom: 24px;
  padding: 26px 28px;
  align-items: flex-start;
  border: 1px solid var(--surface-border);
  border-radius: calc(var(--radius-xl) + 4px);
  background:
    radial-gradient(circle at top right, rgba(44, 166, 178, 0.13), transparent 30%),
    linear-gradient(135deg, rgba(15, 124, 144, 0.09), rgba(255, 255, 255, 0.35));
  box-shadow: var(--shadow), inset 0 1px 0 rgba(255, 255, 255, 0.55);
}

.section-heading h1,
.section-heading h2,
.hero-copy h1,
.surface h2,
.surface h3 {
  margin: 0;
  line-height: 1.05;
  font-family: "Space Grotesk", sans-serif;
}

.section-heading h1,
.hero-copy h1 {
  font-size: clamp(2.5rem, 4vw, 4.7rem);
  letter-spacing: -0.05em;
}

.section-heading h2,
.surface h2 {
  font-size: clamp(1.5rem, 2.5vw, 2.4rem);
  letter-spacing: -0.04em;
}

.eyebrow,
.status-pill {
  font-size: 0.84rem;
  text-transform: uppercase;
  letter-spacing: 0.16em;
}

.status-pill {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 10px 14px;
  border-radius: 999px;
  background: var(--surface);
  border: 1px solid var(--surface-border);
}

.text-link {
  color: var(--accent-strong);
  font-weight: 600;
  transition: color var(--transition-smooth), transform var(--transition-smooth);
}

.text-link kbd {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 1.8em;
  min-height: 1.8em;
  margin-left: 8px;
  padding: 0 0.45em;
  border-radius: 999px;
  border: 1px solid var(--surface-border);
  background: var(--surface);
  color: var(--muted);
  font-size: 0.78rem;
  font-family: "Space Grotesk", sans-serif;
}

.surface {
  padding: 24px;
  border-radius: 18px;
  border: 1px solid var(--surface-border);
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.7), rgba(255, 255, 255, 0.42)),
    var(--surface);
  backdrop-filter: blur(18px);
  box-shadow: var(--shadow), inset 0 1px 0 rgba(255, 255, 255, 0.42);
  position: relative;
  transition: transform var(--transition-smooth), box-shadow var(--transition-smooth), border-color var(--transition-smooth), background var(--transition-smooth);
}

.surface::before {
  content: "";
  position: absolute;
  inset: 0 0 auto;
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.45), transparent);
  opacity: 0.7;
  pointer-events: none;
  transition: opacity var(--transition-smooth);
}

.surface:hover {
  transform: translateY(-2px);
  box-shadow: 0 26px 60px rgba(20, 49, 64, 0.15), inset 0 1px 0 rgba(255, 255, 255, 0.5);
}

.surface:hover::before {
  opacity: 1;
}

.stack-sm > * + * {
  margin-top: 14px;
}

.hero-panel,
.split-panel,
.editor-layout,
.detail-layout {
  display: grid;
  gap: 24px;
}

.hero-panel {
  grid-template-columns: 1.3fr 0.85fr;
  align-items: stretch;
  margin-top: 28px;
}

.hero-copy,
.hero-side {
  display: grid;
  gap: 20px;
}

.hero-copy {
  padding: 38px;
  border-radius: 22px;
  background:
    linear-gradient(140deg, rgba(255, 255, 255, 0.54), rgba(255, 255, 255, 0.2)),
    linear-gradient(135deg, rgba(15, 124, 144, 0.12), rgba(103, 185, 203, 0.1));
  border: 1px solid var(--surface-border);
  box-shadow: var(--shadow), inset 0 1px 0 rgba(255, 255, 255, 0.5);
}

.hero-text {
  max-width: 62ch;
  color: var(--muted);
  font-size: 1.08rem;
  line-height: 1.75;
}

.hero-actions,
.hero-stats,
.inline-form,
.filter-panel,
.editor-actions,
.field-grid,
.tag-row,
.meta-row {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
}

.hero-stats {
  margin: 8px 0 0;
}

.hero-stats div {
  min-width: 140px;
  padding: 16px;
  border-radius: var(--radius-lg);
  background: rgba(255, 255, 255, 0.52);
  border: 0;
}

body[data-theme="dark"] .site-header {
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.03), rgba(255, 255, 255, 0.01)),
    var(--surface);
  box-shadow: var(--shadow), 0 0 0 1px rgba(90, 228, 255, 0.06);
}

body[data-theme="dark"] .global-search {
  background:
    linear-gradient(180deg, rgba(16, 28, 34, 0.9), rgba(16, 28, 34, 0.78)),
    rgba(255, 255, 255, 0.08);
  box-shadow:
    inset 0 1px 0 rgba(255, 255, 255, 0.06),
    0 8px 24px rgba(8, 17, 26, 0.18);
}

body[data-theme="dark"] .global-search-input {
  color: #eaf7ff;
}

body[data-theme="dark"] .global-search-input::placeholder {
  color: rgba(208, 227, 236, 0.72);
}

body[data-theme="dark"] .button {
  background: linear-gradient(135deg, var(--accent), var(--accent-strong));
  color:rgb(255, 255, 255);
  box-shadow: 0 10px 28px rgba(90, 228, 255, 0.2);
}

body[data-theme="dark"] .button:hover {
  background: linear-gradient(135deg, var(--accent-strong), var(--accent));
  color: #081018;
}

body[data-theme="dark"] .button-ghost {
  background: rgba(255, 255, 255, 0.03);
  border-color: rgba(120, 170, 208, 0.16);
}

body[data-theme="dark"] main.section > .section-heading:first-child {
  background:
    radial-gradient(circle at top right, rgba(73, 220, 255, 0.14), transparent 30%),
    linear-gradient(135deg, rgba(255, 176, 123, 0.08), rgba(255, 255, 255, 0.02));
  box-shadow: var(--shadow), inset 0 1px 0 rgba(255, 255, 255, 0.04);
}

body[data-theme="dark"] .surface {
  background: var(--surface);
  box-shadow: var(--shadow), 0 0 0 1px rgba(90, 228, 255, 0.04);
}

body[data-theme="dark"] .hero-copy {
  background:
    linear-gradient(140deg, rgba(255, 255, 255, 0.05), rgba(255, 255, 255, 0.01)),
    linear-gradient(135deg, rgba(86, 209, 238, 0.12), rgba(255, 176, 123, 0.08));
  box-shadow: var(--shadow), 0 0 40px rgba(73, 220, 255, 0.08);
}

body[data-theme="dark"] .hero-stats div {
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid rgba(90, 228, 255, 0.08);
}

.hero-stats dt {
  font-size: 0.82rem;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--muted);
}

.hero-stats dd {
  margin: 6px 0 0;
  font-weight: 700;
  font-size: 1.1rem;
}

.timeline,
.check-list {
  padding-left: 18px;
  margin: 0;
  color: var(--muted);
}

.timeline li,
.check-list li {
  margin: 10px 0;
}

.feature-grid,
.content-grid,
.mini-grid {
  display: grid;
  gap: 18px;
}

.feature-grid {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.feature-card,
.content-card {
  position: relative;
  overflow: hidden;
  min-height: 100%;
}

.feature-card::after,
.content-card::after {
  content: "";
  position: absolute;
  inset: auto -10% -40% auto;
  width: 160px;
  height: 160px;
  border-radius: 999px;
  background: radial-gradient(circle, rgba(17, 122, 139, 0.16), transparent 60%);
}

.feature-card,
.content-card,
.preview-panel,
.editor-panel,
.filter-panel,
.newsletter,
.comments-panel,
.mock-card,
.flashcard-card,
.progress-item,
.resource-link,
.question-card,
.metric-card {
  background: var(--surface);
  border: 1px solid var(--surface-border);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow);
}

.feature-card,
.content-card {
  padding: 22px;
  transition: transform var(--transition-smooth), box-shadow var(--transition-smooth), border-color var(--transition-smooth), background var(--transition-smooth);
}

.preview-panel,
.editor-panel,
.comments-panel,
.mock-card,
.flashcard-card,
.progress-item,
.question-card,
.metric-card {
  position: relative;
  overflow: hidden;
}

.editor-panel {
  overflow: visible;
}

.preview-panel::after,
.editor-panel::after,
.comments-panel::after,
.mock-card::after,
.flashcard-card::after,
.progress-item::after,
.question-card::after,
.metric-card::after {
  content: "";
  position: absolute;
  inset: auto -14% -38% auto;
  width: 150px;
  height: 150px;
  border-radius: 999px;
  background: radial-gradient(circle, rgba(44, 166, 178, 0.1), transparent 62%);
  pointer-events: none;
}

.feature-card:hover,
.content-card:hover,
.question-card:hover,
.resource-link:hover,
.metric-card:hover,
.progress-item:hover,
.planner-day:hover {
  transform: translateY(-4px);
  border-color: rgba(17, 122, 139, 0.2);
  box-shadow: 0 28px 64px rgba(20, 49, 64, 0.18);
}

.content-grid {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.content-card {
  display: grid;
  gap: 14px;
}

.content-card h3 {
  font-size: 1.35rem;
}

.card-top,
.preview-header,
.detail-meta {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 16px;
}

.card-type {
  display: inline-flex;
  padding: 7px 10px;
  border-radius: 999px;
  background: var(--accent-soft);
  color: var(--accent-strong);
  font-size: 0.82rem;
  font-weight: 700;
}

.card-excerpt,
.preview-excerpt,
.detail-summary,
.article-body,
.empty-state,
.form-message {
  color: var(--muted);
}

.card-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin-top: auto;
}

.card-link {
  color: var(--accent-strong);
  font-weight: 600;
}

.card-link,
.text-link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  transition: color var(--transition-smooth), transform var(--transition-smooth);
  position: relative;
}

.card-link::before,
.text-link::before {
  content: "";
  position: absolute;
  left: 0;
  bottom: -2px;
  width: 100%;
  height: 1.5px;
  border-radius: 999px;
  background: currentColor;
  transform: scaleX(0);
  transform-origin: left;
  opacity: 0.7;
  transition: transform var(--transition-smooth), opacity var(--transition-smooth);
}

.card-link::after,
.text-link::after {
  content: "->";
  font-size: 0.9em;
  transition: transform var(--transition);
}

.card-link:hover::after,
.text-link:hover::after,
.card-link:focus-visible::after,
.text-link:focus-visible::after {
  transform: translateX(3px);
}

.card-link:hover,
.text-link:hover {
  transform: translateX(2px);
}

.card-link:hover::before,
.card-link:focus-visible::before,
.text-link:hover::before,
.text-link:focus-visible::before {
  transform: scaleX(1);
}

.mini-grid {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.mini-grid span {
  padding: 12px 14px;
  border-radius: var(--radius-md);
  background: var(--surface-strong);
  border: 1px solid var(--surface-border);
  font-weight: 500;
  transition: transform var(--transition-smooth), border-color var(--transition-smooth), box-shadow var(--transition-smooth), background var(--transition-smooth);
}

.mini-grid span:hover {
  transform: translateY(-2px);
  border-color: rgba(15, 124, 144, 0.2);
  box-shadow: 0 16px 28px rgba(20, 49, 64, 0.1);
}

.newsletter {
  display: grid;
  gap: 18px;
  align-items: center;
}

.site-footer {
  margin-top: 40px;
  padding: 30px;
  overflow: hidden;
  background:
    radial-gradient(circle at top right, rgba(44, 166, 178, 0.12), transparent 28%),
    linear-gradient(180deg, rgba(255, 255, 255, 0.08), rgba(255, 255, 255, 0.02)),
    var(--surface);
  border-radius: 24px;
}

.site-footer::after {
  content: "";
  position: absolute;
  inset: 0 auto auto 0;
  width: 100%;
  height: 1px;
  background: linear-gradient(90deg, rgba(17, 122, 139, 0.28), rgba(97, 185, 197, 0.22), transparent 80%);
  pointer-events: none;
}

.footer-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.4fr) repeat(3, minmax(160px, 1fr));
  gap: 28px;
  align-items: start;
}

.footer-brand {
  display: grid;
  gap: 18px;
  padding-right: 22px;
}

.footer-brand p {
  margin: 0;
  max-width: 40ch;
  color: var(--muted);
  line-height: 1.8;
}

.footer-social {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.footer-social a {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 42px;
  height: 42px;
  border-radius: 999px;
  border: 1px solid var(--surface-border);
  background: rgba(255, 255, 255, 0.04);
  color: var(--text);
  transition: transform var(--transition-smooth), border-color var(--transition-smooth), background var(--transition-smooth), color var(--transition-smooth), box-shadow var(--transition-smooth);
}

.footer-social a:hover,
.footer-social a:focus-visible {
  transform: translateY(-2px);
  border-color: rgba(44, 166, 178, 0.32);
  background: var(--accent-soft);
  color: var(--accent-strong);
  box-shadow: 0 16px 24px rgba(20, 49, 64, 0.14);
}

.footer-heading {
  margin: 0 0 14px;
  color: var(--text);
  font-family: "Space Grotesk", sans-serif;
  font-size: 0.92rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.footer-grid > div:not(.footer-brand) {
  display: grid;
  gap: 10px;
  align-content: start;
}

.footer-links {
  display: grid;
  gap: 8px;
}

.footer-links a,
.footer-grid > div:not(.footer-brand) > a {
  display: inline-block;
  width: fit-content;
  max-width: 100%;
  color: var(--muted);
  line-height: 1.5;
  transition: color var(--transition-smooth), letter-spacing var(--transition-smooth), transform var(--transition-smooth);
  position: relative;
}

.footer-links a::before,
.footer-grid > div:not(.footer-brand) > a::before {
  content: "";
  position: absolute;
  left: 0;
  bottom: -2px;
  width: 100%;
  height: 1.5px;
  border-radius: 999px;
  background: currentColor;
  transform: scaleX(0);
  transform-origin: left;
  opacity: 0.72;
  transition: transform var(--transition-smooth), opacity var(--transition-smooth);
}

.footer-links a:hover,
.footer-links a:focus-visible,
.footer-grid > div:not(.footer-brand) > a:hover,
.footer-grid > div:not(.footer-brand) > a:focus-visible {
  color: var(--accent-strong);
  transform: translateX(2px);
  letter-spacing: 0.01em;
}

.footer-links a:hover::before,
.footer-links a:focus-visible::before,
.footer-grid > div:not(.footer-brand) > a:hover::before,
.footer-grid > div:not(.footer-brand) > a:focus-visible::before {
  transform: scaleX(1);
}

.footer-bottom {
  margin-top: 28px;
  padding-top: 20px;
  border-top: 1px solid var(--surface-border);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
}

.footer-bottom p,
.footer-bottom a {
  margin: 0;
  color: var(--muted);
}

.footer-bottom p:last-child,
.footer-bottom a:last-child {
  color: var(--text);
  font-family: "Space Grotesk", sans-serif;
  font-weight: 700;
  letter-spacing: 0.04em;
}

.workspace-section {
  position: relative;
}

.workspace-grid {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 24px;
}

.workspace-spotlight,
.workspace-list-panel {
  display: grid;
  gap: 16px;
}

.workspace-spotlight {
  overflow: hidden;
  background:
    radial-gradient(circle at top right, rgba(44, 166, 178, 0.18), transparent 34%),
    linear-gradient(135deg, rgba(17, 122, 139, 0.08), rgba(255, 255, 255, 0.04));
}

.workspace-spotlight::after {
  content: "";
  position: absolute;
  inset: auto -40px -50px auto;
  width: 180px;
  height: 180px;
  border-radius: 999px;
  background: radial-gradient(circle, rgba(17, 122, 139, 0.18), transparent 65%);
  pointer-events: none;
}

.section-heading-compact {
  margin-bottom: 0;
}

.progress-badge-row {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
}

.progress-badge {
  display: inline-flex;
  align-items: center;
  padding: 9px 12px;
  border-radius: 999px;
  border: 1px solid var(--surface-border);
  background: var(--surface-strong);
  color: var(--muted);
  font-size: 0.9rem;
}

.resource-link-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}

.resource-link-row .button-ghost {
  flex-shrink: 0;
}

.inline-form {
  align-items: center;
}

.template-tools,
.mock-status,
.mock-actions,
.profile-form {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
  align-items: end;
}

.profile-form > .button,
.profile-form > .button-ghost {
  flex: 0 0 auto;
  align-self: end;
  min-width: 156px;
  padding-inline: 20px;
}

.editor-helper {
  margin: 12px 0 0;
  color: var(--muted);
}

input,
select,
textarea {
  width: 100%;
  padding: 14px 16px;
  color: var(--text);
  background: var(--surface-strong);
  border: 1px solid var(--surface-border);
  border-radius: var(--radius-md);
  outline: none;
  transition: border-color var(--transition-smooth), transform var(--transition-smooth), box-shadow var(--transition-smooth), background var(--transition-smooth);
}

input:focus,
select:focus,
textarea:focus {
  border-color: var(--accent);
  transform: translateY(-1px);
  box-shadow: 0 0 0 3px rgba(44, 166, 178, 0.12);
}

input:hover,
select:hover,
textarea:hover {
  border-color: rgba(15, 124, 144, 0.22);
}

textarea {
  resize: vertical;
}

.filter-panel {
  padding: 18px;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.08), rgba(255, 255, 255, 0.02)),
    var(--surface);
}

.search-field {
  flex: 1 1 280px;
  min-width: 0;
}

.filter-chips {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
}

.chip {
  padding: 10px 14px;
  border: 1px solid var(--surface-border);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.2);
  color: var(--muted);
  transition: background var(--transition-smooth), color var(--transition-smooth), border-color var(--transition-smooth), transform var(--transition-smooth), box-shadow var(--transition-smooth);
}

.chip:hover,
.chip:focus-visible {
  transform: translateY(-1px);
  border-color: rgba(235, 109, 47, 0.25);
  color: var(--accent-strong);
  box-shadow: 0 10px 18px rgba(20, 49, 64, 0.08);
}

.chip.is-active {
  background: var(--accent-soft);
  color: var(--accent-strong);
}

.editor-layout {
  grid-template-columns: 1.1fr 0.9fr;
  align-items: start;
}

.editor-studio {
  display: grid;
  gap: 26px;
}

.editor-hero {
  display: grid;
  grid-template-columns: minmax(0, 1.2fr) minmax(280px, 0.8fr);
  gap: 24px;
  align-items: start;
  padding: 34px;
  background:
    radial-gradient(circle at top right, rgba(44, 166, 178, 0.16), transparent 28%),
    linear-gradient(135deg, rgba(255, 255, 255, 0.58), rgba(255, 255, 255, 0.22)),
    var(--surface);
}

.editor-hero-copy,
.editor-hero-meta,
.publish-sidebar,
.writer-shell {
  display: grid;
  gap: 18px;
}

.editor-hero-copy h1 {
  margin: 0;
  max-width: 12ch;
  font-size: clamp(2.7rem, 4.4vw, 4.6rem);
  letter-spacing: -0.06em;
  line-height: 0.96;
}

.editor-hero-meta {
  align-content: start;
}

.editor-workspace {
  display: grid;
  grid-template-columns: minmax(0, 1.18fr) minmax(320px, 0.82fr);
  gap: 24px;
  align-items: start;
}

.writer-shell {
  padding: 30px;
  background:
    radial-gradient(circle at top right, rgba(44, 166, 178, 0.14), transparent 26%),
    linear-gradient(180deg, rgba(255, 255, 255, 0.52), rgba(255, 255, 255, 0.22)),
    var(--surface);
}

.writer-header,
.editor-section-head {
  display: flex;
  align-items: start;
  justify-content: space-between;
  gap: 16px;
}

.writer-header h2,
.editor-section-head h3 {
  margin: 0;
  font-family: "Space Grotesk", sans-serif;
  letter-spacing: -0.03em;
}

.writer-status {
  display: inline-flex;
  align-items: center;
  padding: 9px 12px;
  border-radius: 999px;
  background: rgba(15, 124, 144, 0.1);
  border: 1px solid rgba(15, 124, 144, 0.14);
  color: var(--accent-strong);
  font-size: 0.84rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.writer-form {
  gap: 20px;
}

.editor-section-card {
  display: grid;
  gap: 16px;
  padding: 20px;
  border-radius: calc(var(--radius-lg) + 2px);
  border: 1px solid var(--surface-border);
  background:
    radial-gradient(circle at top right, rgba(44, 166, 178, 0.08), transparent 28%),
    linear-gradient(180deg, rgba(255, 255, 255, 0.22), rgba(255, 255, 255, 0.08)),
    var(--surface-strong);
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.46);
}

.editor-compose-card {
  gap: 22px;
  padding: 28px;
  border-radius: 28px;
  background:
    radial-gradient(circle at top right, rgba(44, 166, 178, 0.08), transparent 28%),
    linear-gradient(180deg, rgba(255, 255, 255, 0.22), rgba(255, 255, 255, 0.08)),
    var(--surface-strong);
  border-color: var(--surface-border);
  box-shadow:
    inset 0 1px 0 rgba(255, 255, 255, 0.46),
    0 24px 44px rgba(20, 49, 64, 0.08);
}

.editor-compose-head {
  align-items: center;
  padding-bottom: 8px;
  border-bottom: 1px solid rgba(18, 43, 58, 0.08);
}

.editor-title-field input {
  font-size: clamp(1.1rem, 2vw, 1.35rem);
  font-weight: 600;
}

.template-ribbon {
  justify-content: flex-end;
}

.writer-toolbar {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  padding: 14px;
  border-radius: calc(var(--radius-lg) - 4px);
  border: 1px solid var(--surface-border);
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.22), rgba(255, 255, 255, 0.1)),
    var(--surface-strong);
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.4);
  align-items: center;
}

.editor-tool-button {
  min-width: 42px;
  padding-inline: 0;
  background: rgba(255, 255, 255, 0.74);
  color: var(--accent-strong);
  border-color: rgba(18, 43, 58, 0.1);
}

.editor-tool-button:hover,
.editor-tool-button:focus-visible {
  background: rgba(15, 124, 144, 0.12);
}

.writer-toolbar-sticky {
  position: sticky;
  top: 92px;
  z-index: 20;
  align-self: start;
  padding: 14px 16px;
  border-radius: 22px;
  border: 1px solid var(--surface-border);
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.22), rgba(255, 255, 255, 0.1)),
    var(--surface-strong);
  box-shadow:
    0 14px 34px rgba(20, 49, 64, 0.08),
    inset 0 1px 0 rgba(255, 255, 255, 0.4);
  backdrop-filter: blur(12px);
}

.editor-tool-select,
.editor-tool-color {
  display: inline-grid;
  grid-template-columns: auto 1fr auto;
  align-items: center;
  gap: 10px;
  min-height: 48px;
  min-width: 172px;
  padding: 0 14px;
  border-radius: 16px;
  border: 1px solid var(--surface-border);
  background: rgba(255, 255, 255, 0.72);
  color: var(--accent-strong);
  box-shadow:
    inset 0 1px 0 rgba(255, 255, 255, 0.45),
    0 8px 18px rgba(20, 49, 64, 0.04);
}

.editor-tool-icon {
  display: inline-grid;
  place-items: center;
  width: 28px;
  height: 28px;
  border-radius: 10px;
  color: var(--accent-strong);
  background: rgba(15, 124, 144, 0.08);
}

.editor-tool-meta {
  display: inline-grid;
  min-width: 0;
}

.editor-tool-label {
  color: var(--text);
  font-family: "Space Grotesk", sans-serif;
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 0.02em;
  text-transform: uppercase;
}

.editor-tool-select select,
.editor-tool-color input {
  width: 100%;
  min-height: 0;
  padding: 0;
  border: 0;
  background: transparent;
  box-shadow: none;
}

.editor-tool-select select {
  color: var(--text);
  font-family: "Space Grotesk", sans-serif;
  font-size: 0.95rem;
  font-weight: 600;
  cursor: pointer;
  appearance: none;
}

.editor-tool-color input {
  width: 36px;
  height: 36px;
  cursor: pointer;
  border-radius: 12px;
  overflow: hidden;
}

.writer-editor-shell {
  border: 1px solid var(--surface-border);
  border-radius: 30px;
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.32), rgba(255, 255, 255, 0.08)),
    var(--surface-strong);
  overflow: visible;
  box-shadow:
    inset 0 1px 0 rgba(255, 255, 255, 0.52),
    0 28px 48px rgba(20, 49, 64, 0.08);
  transition: border-color var(--transition-smooth), box-shadow var(--transition-smooth), transform var(--transition-smooth);
}

.writer-editor-shell:hover {
  border-color: rgba(15, 124, 144, 0.2);
}

.writer-editor-shell:focus-within {
  border-color: rgba(15, 124, 144, 0.28);
  box-shadow:
    inset 0 1px 0 rgba(255, 255, 255, 0.56),
    0 0 0 4px rgba(44, 166, 178, 0.08),
    0 28px 52px rgba(20, 49, 64, 0.1);
  transform: translateY(-1px);
}

.writer-editor {
  min-height: 560px;
  padding: 52px 62px 72px;
  outline: none;
  line-height: 2;
  font-size: 1.14rem;
  font-family: Georgia, "Times New Roman", serif;
  letter-spacing: 0.012em;
  color: var(--text);
  max-width: 74ch;
  margin: 0 auto;
}

.writer-editor:empty::before {
  content: attr(data-placeholder);
  color: rgba(90, 113, 131, 0.72);
}

.writer-editor h2,
.writer-editor h3,
.writer-editor p,
.writer-editor ul,
.writer-editor ol,
.writer-editor blockquote,
.writer-editor figure {
  margin: 0 0 1em;
}

.writer-editor p {
  max-width: 70ch;
}

.writer-editor img {
  border-radius: calc(var(--radius-lg) + 2px);
}

.writer-main-field textarea,
#postContentInput {
  min-height: 360px;
  font-size: 1rem;
  line-height: 1.8;
}

#postCodeInput {
  min-height: 180px;
}

.writer-actions {
  padding-top: 4px;
}

.publish-sidebar {
  position: sticky;
  top: 108px;
  padding: 26px;
  background:
    radial-gradient(circle at top right, rgba(255, 170, 84, 0.12), transparent 30%),
    linear-gradient(180deg, rgba(255, 255, 255, 0.34), rgba(255, 255, 255, 0.12)),
    var(--surface);
}

.editor-side-block {
  display: grid;
  gap: 14px;
  padding: 18px;
  border-radius: calc(var(--radius-lg) - 2px);
  border: 1px solid var(--surface-border);
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.18), rgba(255, 255, 255, 0.06)),
    var(--surface-strong);
}

.editor-checklist {
  margin: 0;
}

.preview-stack {
  gap: 16px;
}

.preview-stack .tag-row {
  gap: 8px;
}

.preview-stack .tag-row span {
  padding: 6px 10px;
  border-radius: 999px;
  font-size: 0.78rem;
  line-height: 1.1;
  min-height: 0;
}

body[data-theme="dark"] .writer-shell {
  background:
    radial-gradient(circle at top right, rgba(86, 209, 238, 0.12), transparent 26%),
    linear-gradient(180deg, rgba(255, 255, 255, 0.03), rgba(255, 255, 255, 0.01)),
    var(--surface);
}

body[data-theme="dark"] .editor-section-card,
body[data-theme="dark"] .editor-side-block,
body[data-theme="dark"] .publish-sidebar {
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.04), rgba(255, 255, 255, 0.015)),
    var(--surface-strong);
  border-color: rgba(120, 170, 208, 0.14);
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.03);
}

body[data-theme="dark"] .editor-compose-card {
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.04), rgba(255, 255, 255, 0.015)),
    var(--surface-strong);
  border-color: rgba(120, 170, 208, 0.14);
  box-shadow:
    inset 0 1px 0 rgba(255, 255, 255, 0.03),
    0 28px 48px rgba(0, 0, 0, 0.28);
}

body[data-theme="dark"] .editor-compose-head {
  border-bottom-color: rgba(120, 170, 208, 0.12);
}

body[data-theme="dark"] .writer-toolbar,
body[data-theme="dark"] .writer-editor-shell {
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.06), rgba(255, 255, 255, 0.015)),
    #111b29;
  border-color: rgba(120, 170, 208, 0.15);
}

body[data-theme="dark"] .writer-toolbar-sticky {
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.06), rgba(255, 255, 255, 0.015)),
    #111b29;
  border-color: rgba(120, 170, 208, 0.15);
  box-shadow:
    inset 0 1px 0 rgba(255, 255, 255, 0.03),
    0 16px 30px rgba(0, 0, 0, 0.26);
}

body[data-theme="dark"] .editor-tool-button,
body[data-theme="dark"] .editor-tool-select,
body[data-theme="dark"] .editor-tool-color {
  background: rgba(255, 255, 255, 0.045);
  color: #b8d8e8;
  border-color: rgba(120, 170, 208, 0.12);
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.03);
}

body[data-theme="dark"] .editor-tool-icon {
  background: rgba(86, 209, 238, 0.1);
  color: #d9edf6;
}

body[data-theme="dark"] .editor-tool-button:hover,
body[data-theme="dark"] .editor-tool-button:focus-visible {
  background: rgba(86, 209, 238, 0.12);
  color: var(--text);
}

body[data-theme="dark"] .editor-tool-label,
body[data-theme="dark"] .editor-tool-select select {
  color: #eef6fb;
}

body[data-theme="dark"] .writer-editor {
  color: #edf4f8;
  font-family: Georgia, "Times New Roman", serif;
}

body[data-theme="dark"] .writer-editor-shell {
  box-shadow:
    inset 0 1px 0 rgba(255, 255, 255, 0.04),
    0 26px 46px rgba(0, 0, 0, 0.28);
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.06), rgba(255, 255, 255, 0.015)),
    #111b29;
  border-color: rgba(120, 170, 208, 0.15);
}

body[data-theme="dark"] .writer-editor:empty::before {
  color: rgba(160, 179, 194, 0.78);
}

body[data-theme="dark"] .writer-status {
  background: rgba(86, 209, 238, 0.1);
  border-color: rgba(86, 209, 238, 0.18);
  color: #a8ecfb;
}

body[data-theme="dark"] .code-block {
  background: #08111c;
  color: #99f1ff;
  border-color: rgba(120, 170, 208, 0.14);
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.03);
}

body[data-theme="dark"] .tag-row span,
body[data-theme="dark"] .preview-stack .tag-row span {
  background: rgba(255, 255, 255, 0.04);
  border-color: rgba(120, 170, 208, 0.14);
  color: #b7cad8;
}

body[data-theme="dark"] .question-card,
body[data-theme="dark"] .mock-card,
body[data-theme="dark"] .flashcard-card {
  background:
    radial-gradient(circle at top right, rgba(86, 209, 238, 0.16), transparent 28%),
    linear-gradient(180deg, rgba(17, 28, 42, 0.9), rgba(10, 18, 29, 0.88)),
    var(--surface);
  border-color: rgba(120, 170, 208, 0.18);
  box-shadow: 0 26px 60px rgba(0, 0, 0, 0.42);
}

body[data-theme="dark"] .question-answer,
body[data-theme="dark"] .mock-answer {
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.04), rgba(255, 255, 255, 0.01)),
    rgba(4, 10, 18, 0.4);
  border-color: rgba(120, 170, 208, 0.12);
  color: #b8cad8;
}

body[data-theme="dark"] .mcq-option {
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.04), rgba(255, 255, 255, 0.01)),
    rgba(4, 10, 18, 0.4);
  border-color: rgba(120, 170, 208, 0.12);
}

body[data-theme="dark"] .mcq-option-button {
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.04), rgba(255, 255, 255, 0.01)),
    rgba(4, 10, 18, 0.4);
  border-color: rgba(120, 170, 208, 0.12);
  color: #e7f1f7;
}

body[data-theme="dark"] .mcq-option.is-correct {
  background:
    linear-gradient(180deg, rgba(86, 209, 238, 0.16), rgba(86, 209, 238, 0.05)),
    rgba(4, 10, 18, 0.44);
  border-color: rgba(86, 209, 238, 0.2);
}

body[data-theme="dark"] .mcq-option-button.is-correct {
  background:
    linear-gradient(180deg, rgba(86, 209, 238, 0.16), rgba(86, 209, 238, 0.05)),
    rgba(4, 10, 18, 0.44);
  border-color: rgba(86, 209, 238, 0.2);
}

body[data-theme="dark"] .mcq-option-button.is-wrong {
  background:
    linear-gradient(180deg, rgba(255, 140, 125, 0.16), rgba(255, 140, 125, 0.05)),
    rgba(4, 10, 18, 0.44);
  border-color: rgba(255, 140, 125, 0.2);
}

body[data-theme="dark"] .mcq-option-key {
  background: rgba(86, 209, 238, 0.14);
  color: #e6f8ff;
}

body[data-theme="dark"] .mock-status .status-pill {
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.07), rgba(255, 255, 255, 0.03)),
    var(--surface-strong);
  border-color: rgba(120, 170, 208, 0.16);
  color: #dff6ff;
}

body[data-theme="dark"] #mockRevealAnswer {
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.08), rgba(255, 255, 255, 0.03)),
    var(--surface-strong);
}

body[data-theme="dark"] #mockWrongButton {
  color: #ffafa4;
  border-color: rgba(255, 140, 125, 0.18);
}

body[data-theme="dark"] #mockCorrectButton {
  color: #f4fbff;
  border-color: rgba(86, 209, 238, 0.2);
}

body[data-theme="dark"] .article-body blockquote,
body[data-theme="dark"] .article-preview blockquote {
  background: rgba(86, 209, 238, 0.08);
  border-left-color: var(--accent);
}

body[data-theme="dark"] .article-body code,
body[data-theme="dark"] .article-preview code {
  background: rgba(86, 209, 238, 0.1);
  color: #9de7f8;
}

body[data-theme="dark"] .detail-main-premium {
  background:
    radial-gradient(circle at top right, rgba(86, 209, 238, 0.12), transparent 26%),
    linear-gradient(180deg, rgba(255, 255, 255, 0.03), rgba(255, 255, 255, 0.01)),
    var(--surface);
}

body[data-theme="dark"] .detail-meta-stack,
body[data-theme="dark"] .detail-side-card,
body[data-theme="dark"] .comments-panel-premium {
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.04), rgba(255, 255, 255, 0.015)),
    var(--surface-strong);
  border-color: rgba(120, 170, 208, 0.14);
}

body[data-theme="dark"] .detail-hero-copy {
  border-bottom-color: rgba(120, 170, 208, 0.1);
}

body[data-theme="dark"] .detail-summary {
  color: #b7cad8;
}

.editor-stats {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
}

.editor-stats .progress-badge {
  justify-content: space-between;
  min-height: 62px;
  padding: 14px 16px;
  font-size: 0.82rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.editor-stats .progress-badge strong {
  color: var(--text);
  font-size: 1.2rem;
  letter-spacing: 0;
  text-transform: none;
}

.preview-stack .article-preview {
  max-height: 420px;
  overflow: auto;
  padding-right: 8px;
}

.article-body h2,
.article-preview h2 {
  margin: 1.2em 0 0.5em;
  font-size: clamp(1.5rem, 2vw, 2rem);
  letter-spacing: -0.04em;
}

.article-body h3,
.article-preview h3 {
  margin: 1.1em 0 0.5em;
  font-size: clamp(1.15rem, 1.6vw, 1.45rem);
  letter-spacing: -0.03em;
}

.article-body ul,
.article-body ol,
.article-preview ul,
.article-preview ol {
  margin: 1em 0;
  padding-left: 1.4rem;
}

.article-body li + li,
.article-preview li + li {
  margin-top: 0.45em;
}

.article-body blockquote,
.article-preview blockquote {
  margin: 1.2em 0;
  padding: 14px 18px;
  border-left: 4px solid var(--accent);
  border-radius: 0 16px 16px 0;
  background: rgba(15, 124, 144, 0.08);
  color: var(--text);
  font-size: 1.02rem;
}

.article-body hr.article-divider,
.article-preview hr.article-divider {
  margin: 1.6em 0;
  border: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(15, 124, 144, 0.4), transparent);
}

.article-body code,
.article-preview code {
  padding: 0.16em 0.45em;
  border-radius: 999px;
  background: rgba(15, 124, 144, 0.12);
  color: var(--accent-strong);
  font-family: Consolas, "Courier New", monospace;
  font-size: 0.92em;
}

.article-body a,
.article-preview a {
  color: var(--accent-strong);
  text-decoration: underline;
  text-decoration-thickness: 1.5px;
  text-underline-offset: 0.16em;
}

.article-image {
  display: grid;
  gap: 10px;
  margin: 1.3em 0;
}

.article-image img {
  width: 100%;
  border-radius: calc(var(--radius-lg) + 2px);
  border: 1px solid var(--surface-border);
  box-shadow: 0 20px 36px rgba(20, 49, 64, 0.12);
}

.article-image figcaption {
  color: var(--muted);
  font-size: 0.9rem;
  text-align: center;
}

.rich-accent {
  color: var(--accent-strong);
  font-weight: 700;
}

.rich-highlight {
  padding: 0.1em 0.32em;
  border-radius: 0.45em;
  background: rgba(255, 170, 84, 0.24);
}

.rich-serif {
  font-family: "Space Grotesk", sans-serif;
  letter-spacing: -0.02em;
}

.rich-mono {
  font-family: Consolas, "Courier New", monospace;
  font-size: 0.94em;
  color: var(--accent-strong);
}

.editor-library {
  margin-top: 8px;
}

.editor-library-card {
  display: grid;
  gap: 14px;
}

.editor-library-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  align-items: center;
}

.editor-library-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  align-items: center;
}

.editor-library-actions .button {
  flex: 1 1 120px;
}

.editor-panel,
.preview-panel {
  padding: 24px;
}

.editor-form,
.comment-form {
  display: grid;
  gap: 16px;
}

.editor-form > .button,
.editor-form > .button-ghost {
  justify-self: start;
  width: auto;
  min-width: 180px;
}

.field-grid {
  align-items: start;
}

.field-grid label,
.editor-form label,
.comment-form label {
  flex: 1 1 240px;
  display: grid;
  gap: 8px;
}

.article-preview,
.article-body {
  line-height: 1.75;
}

.article-body p + p {
  margin-top: 16px;
}

.code-block {
  margin: 0;
  padding: 18px;
  overflow: auto;
  border-radius: var(--radius-lg);
  background: #07111b;
  color: #83f3ff;
  border: 1px solid rgba(90, 228, 255, 0.14);
  font-family: Consolas, "Courier New", monospace;
  font-size: 0.94rem;
}

.tag-row span {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: fit-content;
  max-width: 100%;
  padding: 8px 12px;
  border-radius: 999px;
  background: var(--surface-strong);
  border: 1px solid var(--surface-border);
  color: var(--muted);
  font-size: 0.86rem;
  line-height: 1.1;
  white-space: nowrap;
}

.detail-layout {
  grid-template-columns: 1.1fr 0.55fr;
  align-items: start;
  gap: 24px;
}

.detail-main,
.detail-side {
  display: grid;
  gap: 18px;
}

.detail-main {
  padding: 30px;
}

.detail-main-premium {
  background:
    radial-gradient(circle at top right, rgba(44, 166, 178, 0.12), transparent 26%),
    linear-gradient(180deg, rgba(255, 255, 255, 0.56), rgba(255, 255, 255, 0.24)),
    var(--surface);
}

.detail-hero-copy {
  display: grid;
  gap: 14px;
  padding-bottom: 10px;
  border-bottom: 1px solid rgba(18, 43, 58, 0.08);
}

.detail-meta-stack {
  display: grid;
  gap: 14px;
  padding: 16px 18px;
  border-radius: calc(var(--radius-lg) + 2px);
  border: 1px solid var(--surface-border);
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.26), rgba(255, 255, 255, 0.08)),
    var(--surface-strong);
}

.detail-reading-shell {
  padding: 8px 2px 2px;
}

.detail-body,
.article-body,
.article-preview {
  max-width: 72ch;
}

.detail-actions,
.question-actions {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
  justify-content: flex-end;
}

.button-small {
  min-height: 36px;
  padding: 0 12px;
  font-size: 0.82rem;
  letter-spacing: 0.01em;
}

.button-small.is-success {
  background: var(--accent-soft);
  border-color: transparent;
  color: var(--accent-strong);
}

.detail-main h1 {
  font-size: clamp(2.1rem, 3vw, 3.5rem);
  letter-spacing: -0.05em;
  margin: 0;
  max-width: 14ch;
  font-family: "Space Grotesk", sans-serif;
}

.detail-summary {
  max-width: 62ch;
  font-size: 1.08rem;
  line-height: 1.8;
}

.detail-side .surface + .surface {
  margin-top: 18px;
}

.detail-side-premium {
  position: sticky;
  top: 108px;
}

.detail-side-card {
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.22), rgba(255, 255, 255, 0.08)),
    var(--surface);
}

.related-list {
  display: grid;
  gap: 12px;
}

.related-item {
  padding: 14px;
  border-radius: var(--radius-md);
  background: var(--surface-strong);
  border: 1px solid var(--surface-border);
  transition: transform var(--transition-smooth), border-color var(--transition-smooth), box-shadow var(--transition-smooth);
}

.related-item:hover,
.related-item:focus-within {
  transform: translateY(-2px);
  border-color: rgba(15, 124, 144, 0.18);
  box-shadow: 0 16px 28px rgba(20, 49, 64, 0.1);
}

.resource-list,
.question-list {
  display: grid;
  gap: 14px;
}

.resource-link,
.question-card,
.metric-card {
  border: 1px solid var(--surface-border);
  background: var(--surface-strong);
  border-radius: var(--radius-lg);
}

.resource-link {
  display: grid;
  gap: 4px;
  padding: 14px 16px;
  transition: transform var(--transition), border-color var(--transition), box-shadow var(--transition);
}

.resource-link strong,
.related-item strong {
  transition: color var(--transition-smooth);
}

.resource-link:hover strong,
.resource-link:focus-visible strong,
.related-item:hover strong,
.related-item:focus-within strong {
  color: var(--accent-strong);
}

.resource-link.is-static {
  cursor: default;
}

.resource-link strong,
.metric-card strong {
  font-size: 1rem;
}

.resource-link span,
.metric-card span {
  color: var(--muted);
}

.detail-comments-wrap {
  margin-top: 10px;
}

.comments-panel-premium {
  background:
    radial-gradient(circle at top right, rgba(255, 176, 123, 0.08), transparent 28%),
    linear-gradient(180deg, rgba(255, 255, 255, 0.4), rgba(255, 255, 255, 0.14)),
    var(--surface);
}

.comments-panel-premium .section-heading {
  margin-bottom: 12px;
}

.comments-panel-premium .comment-form {
  padding-top: 6px;
}

.comments-panel-premium .comment-form > .button {
  justify-self: start;
}

.detail-context-pills {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.chapter-outline {
  display: grid;
  gap: 12px;
}

.chapter-outline-item {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 12px;
  padding: 14px;
  border-radius: var(--radius-md);
  border: 1px solid var(--surface-border);
  background: var(--surface-strong);
}

.chapter-outline-step {
  display: inline-grid;
  place-items: center;
  width: 34px;
  height: 34px;
  border-radius: 999px;
  background: rgba(18, 126, 146, 0.14);
  color: var(--accent-strong);
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 0.08em;
}

.chapter-outline-item strong {
  display: block;
  margin-bottom: 4px;
}

.chapter-outline-item p {
  margin: 0;
  color: var(--muted);
  line-height: 1.6;
}

.question-card {
  padding: 24px;
  background:
    radial-gradient(circle at top right, rgba(44, 166, 178, 0.12), transparent 28%),
    linear-gradient(180deg, rgba(255, 255, 255, 0.52), rgba(255, 255, 255, 0.18)),
    var(--surface);
  border-color: rgba(18, 43, 58, 0.12);
  box-shadow: 0 24px 54px rgba(17, 42, 59, 0.1);
}

.question-card h3,
.metric-card strong {
  margin: 0;
}

.question-head {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 18px;
  align-items: flex-start;
}

.question-head > div:first-child {
  display: grid;
  gap: 10px;
}

.question-card .card-excerpt {
  max-width: 64ch;
}

.question-card .tag-row {
  margin-top: 16px;
}

.mcq-options {
  display: grid;
  gap: 10px;
  margin: 12px 0 4px;
}

.mcq-options.is-interactive {
  margin-top: 14px;
}

.mcq-option {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  align-items: center;
  gap: 12px;
  padding: 13px 14px;
  border-radius: 16px;
  border: 1px solid rgba(18, 43, 58, 0.09);
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.42), rgba(255, 255, 255, 0.14)),
    rgba(255, 255, 255, 0.18);
}

.mcq-option.is-correct {
  border-color: rgba(18, 126, 146, 0.22);
  background:
    linear-gradient(180deg, rgba(18, 126, 146, 0.18), rgba(18, 126, 146, 0.06)),
    rgba(255, 255, 255, 0.2);
}

.mcq-option-key {
  display: inline-grid;
  place-items: center;
  width: 34px;
  height: 34px;
  border-radius: 999px;
  background: rgba(18, 126, 146, 0.14);
  color: var(--accent-strong);
  font-weight: 700;
}

.mcq-option-button {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  align-items: center;
  gap: 12px;
  width: 100%;
  padding: 13px 14px;
  border-radius: 16px;
  border: 1px solid rgba(18, 43, 58, 0.09);
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.42), rgba(255, 255, 255, 0.14)),
    rgba(255, 255, 255, 0.18);
  color: var(--text);
  text-align: left;
  transition: transform var(--transition), border-color var(--transition), box-shadow var(--transition), background var(--transition);
}

.mcq-option-button:hover,
.mcq-option-button:focus-visible {
  transform: translateY(-1px);
  border-color: rgba(18, 126, 146, 0.18);
  box-shadow: 0 12px 24px rgba(17, 42, 59, 0.08);
}

.mcq-option-button.is-selected,
.mcq-option-button.is-correct,
.mcq-option-button.is-wrong {
  color: var(--text);
}

.mcq-option-button.is-correct {
  border-color: rgba(18, 126, 146, 0.24);
  background:
    linear-gradient(180deg, rgba(18, 126, 146, 0.18), rgba(18, 126, 146, 0.06)),
    rgba(255, 255, 255, 0.2);
}

.mcq-option-button.is-wrong {
  border-color: rgba(214, 92, 76, 0.24);
  background:
    linear-gradient(180deg, rgba(214, 92, 76, 0.16), rgba(214, 92, 76, 0.05)),
    rgba(255, 255, 255, 0.2);
}

.mcq-feedback {
  margin: 8px 0 0;
  font-weight: 600;
}

.question-answer {
  margin-top: 18px;
  padding: 18px 18px 16px;
  border-radius: calc(var(--radius-lg) - 2px);
  color: var(--muted);
  border: 1px solid rgba(18, 43, 58, 0.08);
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.34), rgba(255, 255, 255, 0.08)),
    rgba(255, 255, 255, 0.18);
}

.question-answer p + p {
  margin-top: 12px;
}

.mock-panel {
  display: grid;
  gap: 20px;
  background:
    radial-gradient(circle at top right, rgba(44, 166, 178, 0.14), transparent 24%),
    linear-gradient(180deg, rgba(255, 255, 255, 0.48), rgba(255, 255, 255, 0.16)),
    var(--surface);
}

.mock-card,
.flashcard-card,
.progress-item {
  padding: 22px;
}

.flashcard-panel,
.auth-panel,
.planner-panel {
  display: grid;
  gap: 18px;
}

.mock-card h3,
.progress-meta strong {
  margin: 0;
}

.mock-status {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.mock-status .status-pill {
  min-height: 40px;
  padding-inline: 16px;
  border-radius: 999px;
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.7), rgba(255, 255, 255, 0.34)),
    var(--surface-strong);
  border: 1px solid rgba(18, 43, 58, 0.08);
  color: var(--accent-strong);
  font-weight: 700;
  letter-spacing: 0.01em;
}

.mock-card,
.flashcard-card {
  background:
    radial-gradient(circle at top right, rgba(44, 166, 178, 0.12), transparent 30%),
    linear-gradient(180deg, rgba(255, 255, 255, 0.52), rgba(255, 255, 255, 0.18)),
    var(--surface);
  border: 1px solid rgba(18, 43, 58, 0.12);
  box-shadow: 0 24px 54px rgba(17, 42, 59, 0.1);
}

.mock-card {
  display: grid;
  gap: 14px;
}

.mock-card .card-type,
.flashcard-card .card-type {
  width: fit-content;
  padding: 8px 12px;
  border-radius: 999px;
  background: rgba(18, 126, 146, 0.12);
  color: var(--accent-strong);
  font-size: 0.82rem;
  font-weight: 700;
  letter-spacing: 0.03em;
  text-transform: uppercase;
}

.mock-card h3,
.flashcard-card h3,
.question-card h3 {
  font-size: clamp(1.18rem, 1.7vw, 1.52rem);
  line-height: 1.25;
  letter-spacing: -0.03em;
}

.mock-answer {
  margin-top: 4px;
  padding: 16px 18px;
  border-radius: calc(var(--radius-lg) - 2px);
  color: var(--muted);
  border: 1px solid rgba(18, 43, 58, 0.08);
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.34), rgba(255, 255, 255, 0.1)),
    rgba(255, 255, 255, 0.18);
}

.mock-actions {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 12px;
}

.mock-actions .button {
  width: 100%;
}

#mockRevealAnswer,
#mockWrongButton,
#mockCorrectButton {
  min-height: 50px;
  border-radius: 16px;
  font-weight: 700;
}

#mockRevealAnswer {
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.72), rgba(255, 255, 255, 0.36)),
    var(--surface-strong);
}

#mockWrongButton {
  background:
    linear-gradient(180deg, rgba(255, 169, 157, 0.22), rgba(255, 169, 157, 0.08)),
    var(--surface-strong);
  color: #c75c4f;
  border-color: rgba(199, 92, 79, 0.18);
}

#mockCorrectButton {
  background:
    linear-gradient(135deg, rgba(18, 126, 146, 0.2), rgba(255, 176, 123, 0.32)),
    var(--surface-strong);
  border-color: rgba(18, 126, 146, 0.18);
}

.flashcard-card {
  display: grid;
  gap: 14px;
  min-height: 240px;
  align-content: start;
}

.flashcard-card .eyebrow,
.mock-card .eyebrow {
  margin-bottom: -2px;
}

.flashcard-card .tag-row {
  margin-top: 8px;
}

.mcq-builder {
  margin-top: 6px;
}

#editorInterviewFields[hidden],
#articleOnlyFields[hidden],
#editorTemplateTools[hidden],
#postCodeField[hidden] {
  display: none !important;
}

.mcq-builder .section-heading {
  margin-bottom: 2px;
}

.mcq-option-grid label {
  min-width: min(100%, 220px);
}

.progress-panel {
  display: grid;
  gap: 16px;
}

.progress-list {
  display: grid;
  gap: 14px;
}

.progress-meta {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 10px;
}

.progress-meta span {
  color: var(--muted);
}

.progress-track {
  height: 12px;
  border-radius: 999px;
  overflow: hidden;
  background: rgba(108, 90, 77, 0.14);
}

.progress-track span {
  display: block;
  height: 100%;
  border-radius: 999px;
  background: linear-gradient(90deg, var(--accent), #2ca6b2);
}

.planner-grid {
  display: grid;
  gap: 12px;
  grid-template-columns: repeat(7, minmax(0, 1fr));
}

.planner-day {
  display: grid;
  gap: 6px;
  padding: 16px 12px;
  border-radius: var(--radius-lg);
  border: 1px solid var(--surface-border);
  background: var(--surface-strong);
  color: var(--text);
  text-align: left;
}

.planner-day.is-active {
  background: var(--accent-soft);
  color: var(--accent-strong);
}

.hero-panel > *,
.section > .section-heading,
.section > .surface,
.content-grid > *,
.feature-grid > *,
.dashboard-grid > *,
.metric-grid > *,
.resource-list > *,
.question-list > * {
  animation: riseIn var(--transition-slow) both;
}

.hero-panel > *:nth-child(2),
.feature-grid > *:nth-child(2),
.content-grid > *:nth-child(2),
.dashboard-grid > *:nth-child(2),
.metric-grid > *:nth-child(2) {
  animation-delay: 70ms;
}

.feature-grid > *:nth-child(3),
.content-grid > *:nth-child(3),
.metric-grid > *:nth-child(3) {
  animation-delay: 120ms;
}

.metric-grid > *:nth-child(4) {
  animation-delay: 160ms;
}

@keyframes pageFadeIn {
  from {
    opacity: 0;
  }

  to {
    opacity: 1;
  }
}

@keyframes riseIn {
  from {
    opacity: 0;
    transform: translateY(16px);
  }

  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* AI Assistant Widget */
.ai-assistant-widget {
  position: fixed;
  bottom: 24px;
  right: 24px;
  z-index: 999;
  font-family: "Outfit", sans-serif;
}

.ai-toggle-btn {
  width: 56px;
  height: 56px;
  border-radius: 50%;
  border: none;
  background: linear-gradient(135deg, var(--accent), var(--accent-strong));
  color: white;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 4px;
  font-size: 24px;
  box-shadow: 0 8px 24px rgba(18, 126, 146, 0.3);
  transition: all var(--transition-smooth);
  position: relative;
}

.ai-toggle-btn:hover {
  transform: scale(1.1);
  box-shadow: 0 12px 32px rgba(18, 126, 146, 0.45);
}

.ai-toggle-btn:active {
  transform: scale(0.95);
}

.ai-badge {
  font-size: 10px;
  font-weight: 700;
  position: absolute;
  top: -4px;
  right: -4px;
  background: #ff6b6b;
  color: white;
  padding: 2px 6px;
  border-radius: 10px;
}

.ai-panel {
  position: absolute;
  bottom: 80px;
  right: 0;
  width: 360px;
  max-height: 560px;
  background: var(--surface-strong);
  border: 1px solid var(--surface-border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow);
  display: flex;
  flex-direction: column;
  overflow: hidden;
  animation: slideUp var(--transition-smooth) both;
}

.ai-panel[hidden] {
  display: none;
}

.ai-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 16px;
  border-bottom: 1px solid var(--surface-border);
  background: var(--accent-soft);
}

.ai-header h3 {
  margin: 0;
  font-size: 16px;
  font-weight: 600;
  color: var(--text);
}

.ai-close-btn {
  background: none;
  border: none;
  font-size: 24px;
  cursor: pointer;
  color: var(--text);
  padding: 0;
  width: 32px;
  height: 32px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 6px;
  transition: background var(--transition);
}

.ai-close-btn:hover {
  background: rgba(0, 0, 0, 0.1);
}

.ai-content {
  display: flex;
  flex-direction: column;
  flex: 1;
  overflow-y: auto;
  padding: 16px;
  gap: 12px;
}

.ai-greeting {
  font-size: 14px;
  color: var(--muted);
  line-height: 1.5;
}

.ai-features {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 8px;
}

.ai-feature-btn {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 6px;
  padding: 12px;
  border: 1px solid var(--surface-border);
  border-radius: var(--radius-md);
  background: var(--surface);
  cursor: pointer;
  transition: all var(--transition);
  font-size: 12px;
  font-weight: 500;
  color: var(--text);
}

.ai-feature-btn:hover {
  background: var(--accent-soft);
  border-color: var(--accent);
}

.feature-icon {
  font-size: 20px;
}

.ai-messages {
  display: flex;
  flex-direction: column;
  gap: 8px;
  min-height: 60px;
  max-height: 200px;
  overflow-y: auto;
}

.ai-message {
  padding: 10px 12px;
  border-radius: 8px;
  font-size: 13px;
  line-height: 1.4;
  word-wrap: break-word;
}

.ai-message.user {
  background: var(--accent-soft);
  color: var(--accent-strong);
  margin-left: 20px;
  text-align: right;
}

.ai-message.assistant {
  background: rgba(0, 0, 0, 0.05);
  color: var(--text);
  margin-right: 20px;
}

.ai-input-box {
  display: flex;
  gap: 8px;
  padding-top: 8px;
  border-top: 1px solid var(--surface-border);
}

.ai-input {
  flex: 1;
  padding: 10px 12px;
  border: 1px solid var(--surface-border);
  border-radius: 6px;
  background: var(--surface);
  color: var(--text);
  font-size: 13px;
  font-family: inherit;
  transition: border-color var(--transition);
}

.ai-input:focus {
  outline: none;
  border-color: var(--accent);
  background: var(--surface-strong);
}

.ai-send-btn {
  padding: 10px 16px;
  border: none;
  border-radius: 6px;
  background: var(--accent);
  color: white;
  cursor: pointer;
  font-size: 13px;
  font-weight: 600;
  transition: all var(--transition);
}

.ai-send-btn:hover {
  background: var(--accent-strong);
}

.ai-send-btn:active {
  transform: scale(0.95);
}

@keyframes slideUp {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@media (max-width: 480px) {
  .ai-assistant-widget {
    bottom: 16px;
    right: 16px;
  }

  .ai-toggle-btn {
    width: 48px;
    height: 48px;
    font-size: 20px;
  }

  .ai-panel {
    width: 100vw;
    max-width: calc(100vw - 32px);
    bottom: 64px;
    right: -16px;
    max-height: 50vh;
  }
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  body,
  .hero-panel > *,
  .section > .section-heading,
  .section > .surface,
  .content-grid > *,
  .feature-grid > *,
  .dashboard-grid > *,
  .metric-grid > *,
  .resource-list > *,
  .question-list > * {
    animation: none !important;
  }

  *,
  *::before,
  *::after {
    transition-duration: 0.01ms !important;
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
  }
}

.metric-grid,
.dashboard-grid {
  display: grid;
  gap: 18px;
}

.metric-grid {
  grid-template-columns: repeat(4, minmax(0, 1fr));
}

.metric-card {
  padding: 22px;
  display: grid;
  gap: 8px;
}

.dashboard-grid {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.dashboard-panel {
  display: grid;
  gap: 16px;
}

.admin-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}

.admin-item-actions {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
}

.profile-form label {
  flex: 1 1 220px;
  display: grid;
  gap: 8px;
}

.streak-grid {
  display: grid;
  gap: 14px;
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.comment-list {
  display: grid;
  gap: 14px;
  margin-top: 20px;
}

.comment-item {
  padding: 16px;
  border-radius: var(--radius-lg);
  background: var(--surface-strong);
  border: 1px solid var(--surface-border);
  display: grid;
  gap: 10px;
}

.comment-item-head {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  align-items: center;
  flex-wrap: wrap;
}

.comment-item strong {
  display: block;
}

.comment-item-head span {
  color: var(--muted);
  font-size: 0.9rem;
}

.comment-item p {
  margin: 0;
  line-height: 1.75;
}

.empty-state {
  padding: 18px 0;
  text-align: center;
}

@media (max-width: 1080px) {
  .editor-hero,
  .editor-workspace {
    grid-template-columns: 1fr;
  }

  .publish-sidebar {
    position: static;
    top: auto;
  }

  .hero-panel,
  .editor-layout,
  .detail-layout,
  .feature-grid,
  .content-grid,
  .metric-grid,
  .dashboard-grid,
  .workspace-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .detail-layout {
    grid-template-columns: 1fr;
  }

  .footer-grid {
    grid-template-columns: minmax(0, 1.2fr) repeat(2, minmax(0, 1fr));
  }

  .footer-brand {
    grid-column: 1 / -1;
    padding-right: 0;
  }
}

@media (max-width: 1024px) {
  .editor-hero {
    padding: 24px;
  }

  .editor-hero-copy h1 {
    max-width: none;
  }

  .writer-header,
  .editor-section-head {
    flex-direction: column;
    align-items: flex-start;
  }

  .template-ribbon {
    justify-content: flex-start;
  }

  .writer-toolbar {
    gap: 8px;
  }

  .editor-stats {
    grid-template-columns: 1fr 1fr;
  }

  .site-header {
    display: grid;
    grid-template-columns: minmax(0, 1fr) auto;
    gap: 14px;
    padding: 14px 16px;
    top: 10px;
    z-index: 120;
    background: var(--surface-strong);
    backdrop-filter: none;
  }

  .nav-toggle {
    display: grid;
    justify-self: end;
    z-index: 130;
    position: relative;
  }

  .nav-drawer {
    position: fixed;
    top: 10px;
    right: 0;
    bottom: 10px;
    z-index: 125;
    width: min(360px, calc(100vw - 16px));
    min-height: auto;
    flex-direction: column;
    justify-content: flex-start;
    gap: 18px;
    padding: 78px 18px 18px;
    border: 1px solid var(--surface-border);
    border-right: 0;
    border-radius: 24px 0 0 24px;
    background:
      linear-gradient(180deg, rgba(255, 255, 255, 0.08), rgba(255, 255, 255, 0.02)),
      var(--surface-strong);
    box-shadow: -24px 0 48px rgba(16, 34, 46, 0.18);
    transform: translateX(100%);
    opacity: 0;
    visibility: hidden;
    transition: transform 220ms ease, opacity 180ms ease, visibility 180ms ease;
    pointer-events: none;
    overflow-y: auto;
    -webkit-overflow-scrolling: touch;
    backdrop-filter: none;
    display: flex;
  }

  body[data-theme="dark"] .nav-drawer {
    background:
      linear-gradient(180deg, rgba(255, 255, 255, 0.03), rgba(255, 255, 255, 0.01)),
      #0f1a28;
  }

  .nav-drawer.is-open {
    transform: translateX(0);
    opacity: 1;
    visibility: visible;
    pointer-events: auto;
  }

  .site-nav {
    width: 100%;
    flex-direction: column;
    align-items: stretch;
    justify-content: flex-start;
    gap: 10px;
    overflow: visible;
  }

  .nav-group {
    width: 100%;
  }

  .nav-link,
  .nav-parent {
    width: 100%;
    min-height: 52px;
    padding: 14px 16px;
    border: 1px solid var(--surface-border);
    background: rgba(255, 255, 255, 0.62);
    font-weight: 600;
    justify-content: space-between;
  }

  .nav-submenu {
    position: static;
    min-width: 0;
    margin-top: 8px;
    padding: 10px;
    border-radius: 18px;
    background: rgba(255, 255, 255, 0.5);
    box-shadow: none;
    opacity: 1;
    visibility: visible;
    transform: none;
    display: none;
  }

  .nav-group.is-open .nav-submenu,
  .nav-group.is-active .nav-submenu {
    display: grid;
  }

  .nav-sublink {
    min-height: 46px;
    padding: 12px 14px;
    background: rgba(255, 255, 255, 0.7);
  }

  body[data-theme="dark"] .nav-link,
  body[data-theme="dark"] .nav-parent {
    background: rgba(255, 255, 255, 0.04);
    color: var(--text);
  }

  body[data-theme="dark"] .nav-submenu {
    background: rgba(255, 255, 255, 0.03);
  }

  body[data-theme="dark"] .nav-sublink {
    background: rgba(255, 255, 255, 0.05);
    color: var(--text);
  }

  .header-actions {
    display: grid;
    grid-template-columns: 1fr;
    gap: 10px;
    width: 100%;
    margin-top: auto;
    justify-self: stretch;
  }

  .global-search {
    width: 100%;
    min-width: 0;
    flex-basis: auto;
  }

  .hero-panel,
  .feature-grid,
  .content-grid,
  .editor-layout,
  .metric-grid,
  .dashboard-grid,
  .workspace-grid {
    grid-template-columns: 1fr;
  }

  .hero-panel,
  .split-panel,
  .detail-layout {
    gap: 18px;
  }

  .section-heading {
    flex-direction: column;
    align-items: flex-start;
  }

  body:not([data-page="home"]) main.section > .section-heading:first-child {
    padding: 22px;
  }

  .section-heading .status-pill,
  .section-heading .text-link {
    align-self: flex-start;
  }

  .resource-link-row {
    align-items: flex-start;
    flex-direction: column;
  }

  .filter-panel,
  .detail-meta,
  .card-top,
  .card-footer,
  .preview-header,
  .question-head,
  .admin-item {
    flex-direction: column;
    align-items: stretch;
  }

  .hero-copy {
    padding: 28px;
  }

  .hero-text {
    max-width: none;
  }

  .hero-stats div {
    flex: 1 1 180px;
  }

  .search-field {
    flex-basis: 100%;
  }

  .detail-actions,
  .question-actions {
    justify-content: flex-start;
  }

  .mock-status,
  .mock-actions,
  .template-tools,
  .progress-meta,
  .profile-form {
    flex-direction: column;
    align-items: stretch;
  }

  .admin-item-actions {
    width: 100%;
  }

  .nav-drawer {
    width: min(330px, calc(100vw - 16px));
    padding-top: 78px;
  }

  .site-footer {
    padding: 24px;
  }

  .footer-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 20px;
  }

  .footer-bottom {
    flex-direction: column;
    align-items: flex-start;
  }
}

@media (max-width: 560px) {
  .writer-shell,
  .publish-sidebar,
  .editor-hero {
    padding: 20px;
  }

  .editor-section-card {
    padding: 16px;
  }

  .writer-toolbar {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .editor-stats {
    grid-template-columns: 1fr;
  }

  .writer-main-field textarea,
  #postContentInput {
    min-height: 300px;
  }

  .site-shell {
    width: min(calc(100% - 20px), var(--max-width));
    padding-top: 12px;
    padding-bottom: 18px;
  }

  .site-header,
  .surface,
  .hero-copy,
  .feature-card,
  .content-card,
  .editor-panel,
  .preview-panel {
    border-radius: 20px;
  }

  .site-header {
    align-items: center;
    top: 8px;
    padding: 12px 14px;
    border-radius: 18px;
    background: var(--surface-strong);
    backdrop-filter: none;
  }

  .site-header::after {
    opacity: 1;
  }

  .brand {
    gap: 12px;
  }

  .brand-mark {
    width: 38px;
    height: 38px;
    border-radius: 12px;
  }

  .brand strong {
    font-size: 0.98rem;
  }

  .brand small {
    font-size: 0.76rem;
  }

  .nav-drawer {
    top: 8px;
    bottom: 8px;
    width: min(100vw - 8px, 340px);
    min-height: auto;
    padding: 70px 14px 16px;
    gap: 14px;
    border-radius: 20px 0 0 20px;
  }

  .nav-toggle {
    display: grid;
    width: 46px;
    height: 46px;
  }

  .header-actions {
    grid-template-columns: 1fr;
  }

  .header-actions .button,
  .header-actions .button-ghost,
  .header-actions .theme-toggle {
    width: 100%;
  }

  .site-nav {
    gap: 8px;
  }

  .nav-link,
  .nav-parent {
    min-height: 50px;
    padding: 12px 14px;
    border-radius: 16px;
  }

  .nav-submenu {
    padding: 8px;
    border-radius: 16px;
  }

  .nav-sublink {
    min-height: 44px;
    padding: 11px 12px;
    border-radius: 14px;
  }

  .button,
  .button-ghost,
  .theme-toggle,
  .bookmark-button {
    width: 100%;
  }

  .global-search {
    display: grid;
    grid-template-columns: 1fr;
    padding: 8px;
    border-radius: 18px;
  }

  .global-search-submit {
    width: 100%;
  }

  .hero-actions,
  .editor-actions,
  .inline-form {
    display: grid;
    grid-template-columns: 1fr;
  }

  .field-grid,
  .meta-row,
  .detail-actions,
  .question-actions {
    display: grid;
    grid-template-columns: 1fr;
  }

  .tag-row {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    justify-content: flex-start;
  }

  .template-tools .button,
  .mock-actions .button,
  .admin-item-actions .button {
    width: 100%;
  }

  .streak-grid {
    grid-template-columns: 1fr;
  }

  .planner-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .hero-copy,
  .surface,
  .feature-card,
  .content-card,
  .editor-panel,
  .preview-panel,
  .comments-panel,
  .workspace-spotlight,
  .workspace-list-panel {
    padding: 18px;
  }

  body:not([data-page="home"]) main.section > .section-heading:first-child,
  .detail-main {
    padding: 18px;
  }

  .hero-copy h1,
  .section-heading h1 {
    font-size: clamp(2rem, 10vw, 2.8rem);
  }

  .detail-main h1 {
    font-size: clamp(1.8rem, 8vw, 2.35rem);
  }

  .hero-stats {
    display: grid;
    grid-template-columns: 1fr;
  }

  .hero-stats div {
    min-width: 0;
  }

  .field-grid,
  .meta-row {
    display: grid;
    grid-template-columns: 1fr;
  }

  .tag-row {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    justify-content: flex-start;
  }

  .mini-grid {
    grid-template-columns: 1fr;
  }

  .workspace-grid,
  .streak-grid {
    grid-template-columns: 1fr;
  }

  .site-footer {
    padding: 20px;
  }

  .footer-grid {
    grid-template-columns: 1fr;
    gap: 18px;
  }

  .footer-links a,
  .footer-grid > div:not(.footer-brand) > a {
    width: 100%;
  }

  .code-block {
    font-size: 0.86rem;
    padding: 14px;
  }
}

.card-path,
.breadcrumb,
.subject-meta-row,
.chapter-nav {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
}

.breadcrumb {
  align-items: center;
  margin-bottom: 1rem;
  color: var(--muted);
  font-size: 0.95rem;
}

.breadcrumb a {
  color: inherit;
  text-decoration: none;
}

.chapter-layout {
  display: grid;
  grid-template-columns: minmax(0, 1.6fr) minmax(280px, 1fr);
  gap: 1.25rem;
}

.chapter-resource-block,
.practice-panel {
  display: grid;
  gap: 0.9rem;
}

.chapter-resource-block {
  padding: 1.2rem;
  border-radius: calc(var(--radius-lg) + 2px);
}

.chapter-resource-block-lesson,
.chapter-resource-block-primary {
  gap: 1rem;
}

.chapter-resource-block-primary {
  background:
    radial-gradient(circle at top right, rgba(86, 209, 238, 0.12), transparent 28%),
    linear-gradient(180deg, rgba(255, 255, 255, 0.04), rgba(255, 255, 255, 0.015)),
    var(--surface-strong);
}

.chapter-resource-block .card-excerpt {
  margin: 0;
}

.chapter-resource-block .article-body {
  max-width: 78ch;
  font-size: 1rem;
  line-height: 1.9;
}

.chapter-resource-block .article-body p {
  color: var(--text);
}

.chapter-side-block {
  margin-top: 1rem;
}

.chapter-nav {
  justify-content: space-between;
}

#chapterPracticeSection[hidden],
#chapterQuestionsSection[hidden] {
  display: none;
}

#chapterPracticeSection .empty-state,
#chapterQuestionsSection .empty-state,
#chapterTutorials .empty-state,
#chapterCheatsheets .empty-state {
  margin: 0;
  padding: 1rem 1.1rem;
  border: 1px dashed var(--surface-border);
  border-radius: var(--radius-md);
  background: rgba(255, 255, 255, 0.02);
  text-align: left;
}

@media (max-width: 900px) {
  .chapter-layout {
    grid-template-columns: 1fr;
  }

  .chapter-nav {
    flex-direction: column;
  }
}

@media print {
  body {
    background: #fff;
    color: #111;
  }

  body::before,
  .site-header,
  .detail-side,
  .comments-panel,
  .detail-actions,
  .nav-drawer,
  .nav-toggle {
    display: none !important;
  }

  .site-shell {
    width: 100%;
    max-width: none;
    padding: 0;
  }

  .surface,
  .detail-main {
    background: #fff;
    box-shadow: none;
    border: none;
    padding: 0;
  }

  .code-block {
    background: #f5f5f5;
    color: #111;
    border: 1px solid #ddd;
  }
}