@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800;900&display=swap');

:root {
  /* Surface Hierarchy */
  --surface: #f9f9f9;
  --surface-lowest: #ffffff;
  --surface-low: #f3f3f3;
  --surface-mid: #eeeeee;
  --surface-high: #e8e8e8;
  --surface-highest: #e2e2e2;
  --surface-dim: #dadada;

  /* Primary — Electric Violet */
  --primary: #4800b2;
  --primary-container: #6200ee;
  --primary-fixed: #e8ddff;
  --primary-fixed-dim: #cfbdff;
  --on-primary: #ffffff;
  --on-primary-container: #d0beff;

  /* Secondary — Blue */
  --secondary: #0057c0;
  --secondary-fixed: #d8e2ff;
  --on-secondary: #ffffff;

  /* Tertiary — Purple */
  --tertiary: #58009f;
  --tertiary-container: #7420c5;
  --tertiary-fixed: #efdbff;
  --on-tertiary: #ffffff;

  /* Neutral */
  --on-surface: #1a1c1c;
  --on-surface-variant: #494456;
  --outline: #7a7488;
  --outline-variant: #cbc3d9;
  --inverse-surface: #2f3131;
  --inverse-on-surface: #f1f1f1;

  /* State */
  --error: #ba1a1a;
  --success: #22c55e;

  /* Legacy aliases (used in tool pages) */
  --bg: var(--surface);
  --bg-card: var(--surface-lowest);
  --text: var(--on-surface);
  --text-light: var(--on-surface-variant);
  --border: var(--outline-variant);
  --primary-dark: #3700a0;
  --primary-light: #9c6bff;
  --danger: var(--error);
  --cta: var(--tertiary);

  --radius: 1rem;
  --radius-lg: 2rem;
  --radius-xl: 3rem;
  --radius-sm: 0.5rem;
  --transition: 0.2s ease;

  --shadow: 0 4px 40px rgba(72, 0, 178, 0.06);
  --shadow-lg: 0 20px 60px rgba(72, 0, 178, 0.14);
  --shadow-inner: inset 0 2px 8px rgba(72, 0, 178, 0.06);
}

[data-theme="dark"] {
  --surface: #0f0d1a;
  --surface-lowest: #1a1726;
  --surface-low: #1f1c2e;
  --surface-mid: #252235;
  --surface-high: #2c2840;
  --surface-highest: #332f4a;
  --surface-dim: #0a0814;

  /* Primaire inversé en sombre : le violet clair sur fond sombre */
  --primary: #cfbdff;
  --primary-container: #4800b2;
  --primary-fixed: #2a1a4a;
  --primary-fixed-dim: #3d2666;
  --on-primary: #1a0050;
  --on-primary-container: #e8ddff;

  /* Secondaire et tertiaire adaptés au sombre */
  --secondary: #adc6ff;
  --secondary-fixed: #1a2d50;
  --tertiary: #ddb6ff;
  --tertiary-container: #3d0080;
  --tertiary-fixed: #280050;

  --on-surface: #e8e4f3;
  --on-surface-variant: #cbc3d9;
  --outline: #9489a8;
  --outline-variant: #3a3550;

  --bg: var(--surface);
  --bg-card: var(--surface-lowest);
  --text: var(--on-surface);
  --text-light: var(--on-surface-variant);
  --border: var(--outline-variant);
  --primary-light: #cfbdff;

  --shadow: 0 4px 40px rgba(0, 0, 0, 0.35);
  --shadow-lg: 0 20px 60px rgba(0, 0, 0, 0.45);
}

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html { scroll-behavior: smooth; }

body {
  font-family: 'Inter', system-ui, sans-serif;
  background: var(--surface);
  color: var(--on-surface);
  line-height: 1.6;
  min-height: 100vh;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

h1, h2, h3, h4, h5, h6 {
  font-family: 'Inter', system-ui, sans-serif;
  font-weight: 700;
  line-height: 1.15;
  letter-spacing: -0.02em;
  color: var(--on-surface);
}

a {
  color: var(--primary);
  text-decoration: none;
  transition: color var(--transition);
}

a:hover { color: var(--primary-container); }

[data-theme="dark"] a:hover { color: #e8ddff; }

.container {
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 24px;
}

/* ── HEADER ── */
header {
  background: rgba(249, 249, 249, 0.82);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  position: sticky;
  top: 0;
  z-index: 100;
  border-bottom: none;
}

[data-theme="dark"] header {
  background: rgba(15, 13, 26, 0.82);
}

nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 0;
}

.logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 1.35rem;
  font-weight: 800;
  color: var(--on-surface);
  letter-spacing: -0.03em;
}

.logo svg {
  width: 30px;
  height: 30px;
  color: var(--primary);
}

.nav-links {
  display: flex;
  gap: 2px;
  list-style: none;
}

.nav-links a {
  color: var(--on-surface-variant);
  font-weight: 500;
  font-size: 0.875rem;
  padding: 7px 14px;
  border-radius: var(--radius-sm);
  transition: all var(--transition);
}

.nav-links a:hover {
  color: var(--on-surface);
  background: var(--surface-low);
}

.nav-links a.active {
  color: var(--primary);
  font-weight: 600;
}

.nav-actions {
  display: flex;
  align-items: center;
  gap: 6px;
}

/* ── BUTTONS ── */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 24px;
  border-radius: var(--radius);
  font-weight: 600;
  font-size: 0.9rem;
  cursor: pointer;
  border: none;
  transition: all 0.2s ease-out;
  letter-spacing: -0.01em;
  font-family: 'Inter', sans-serif;
}

.btn-primary {
  background: linear-gradient(135deg, var(--primary) 0%, var(--primary-container) 100%);
  color: var(--on-primary);
  box-shadow: 0 4px 20px rgba(72, 0, 178, 0.3);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 32px rgba(72, 0, 178, 0.4), 0 0 0 4px var(--primary-fixed);
  color: var(--on-primary);
}

/* Bouton primaire en sombre : dégradé violet profond → violet moyen */
[data-theme="dark"] .btn-primary {
  background: linear-gradient(135deg, #5c00d8 0%, #7c2aff 100%);
  color: #ffffff;
  box-shadow: 0 4px 20px rgba(124, 42, 255, 0.35);
}

[data-theme="dark"] .btn-primary:hover {
  box-shadow: 0 8px 32px rgba(124, 42, 255, 0.5), 0 0 0 4px rgba(207, 189, 255, 0.2);
}

.btn-primary:active { transform: translateY(0); }

.btn-secondary {
  background: var(--surface-highest);
  color: var(--on-surface);
}

.btn-secondary:hover { background: var(--surface-high); }

.btn-cta {
  background: linear-gradient(135deg, var(--tertiary) 0%, var(--tertiary-container) 100%);
  color: white;
  box-shadow: 0 4px 20px rgba(88, 0, 159, 0.3);
}

.btn-cta:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 32px rgba(88, 0, 159, 0.4);
}

.btn-icon {
  padding: 9px;
  background: transparent;
  border: none;
  cursor: pointer;
  color: var(--on-surface-variant);
  transition: all var(--transition);
  border-radius: var(--radius-sm);
  font-family: 'Inter', sans-serif;
}

.btn-icon:hover {
  background: var(--surface-low);
  color: var(--on-surface);
}

.theme-toggle {
  background: transparent;
  border: none;
  cursor: pointer;
  padding: 9px;
  color: var(--on-surface-variant);
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-sm);
  transition: all var(--transition);
}

.theme-toggle:hover {
  background: var(--surface-low);
  color: var(--on-surface);
}

.theme-toggle svg { width: 20px; height: 20px; }

[data-theme="dark"] .sun-icon { display: none; }
[data-theme="dark"] .moon-icon { display: block; }
.sun-icon { display: block; }
.moon-icon { display: none; }

/* ── HERO ── */
.hero { padding: 80px 0 56px; }

.hero-inner {
  display: flex;
  gap: 48px;
  align-items: flex-start;
}

.hero-main { flex: 1; }

.hero-aside {
  width: 260px;
  flex-shrink: 0;
  padding-top: 48px;
}

.hero-overline {
  font-size: 0.68rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--primary);
  margin-bottom: 14px;
}

.hero h1 {
  font-size: clamp(2.4rem, 5vw, 3.8rem);
  font-weight: 900;
  letter-spacing: -0.03em;
  line-height: 1.05;
  margin-bottom: 32px;
  color: var(--on-surface);
}

.hero h1 .highlight {
  background: var(--primary-fixed);
  color: var(--primary);
  padding: 0 8px;
  border-radius: 6px;
}

.search-box {
  max-width: 580px;
  position: relative;
}

.search-box input {
  width: 100%;
  padding: 18px 24px 18px 56px;
  border: none;
  border-radius: var(--radius-lg);
  font-size: 1rem;
  background: var(--surface-lowest);
  color: var(--on-surface);
  transition: all var(--transition);
  box-shadow: var(--shadow);
  font-family: 'Inter', sans-serif;
}

.search-box input:focus {
  outline: none;
  box-shadow: var(--shadow-lg), 0 0 0 2px var(--primary);
}

.search-box input::placeholder { color: var(--outline); }

.search-box svg {
  position: absolute;
  left: 20px;
  top: 50%;
  transform: translateY(-50%);
  width: 20px;
  height: 20px;
  color: var(--outline);
}

.hero-aside-card {
  background: var(--surface-low);
  border-radius: var(--radius);
  padding: 24px;
  border: 1px solid var(--outline-variant);
  box-shadow: 0 1px 3px rgba(0,0,0,0.06);
}

[data-theme="dark"] .hero-aside-card {
  border-color: rgba(255,255,255,0.07);
  box-shadow: none;
}

.hero-aside-card p {
  color: var(--on-surface-variant);
  font-size: 0.875rem;
  line-height: 1.65;
  margin-bottom: 16px;
  font-style: italic;
}

.hero-aside-users {
  display: flex;
  align-items: center;
  gap: 8px;
}

.avatar-stack {
  display: flex;
}

.avatar {
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background: var(--surface-high);
  margin-left: -6px;
  border: 2px solid var(--surface-low);
}

.avatar:first-child { margin-left: 0; }

.avatar-count {
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--primary), var(--primary-container));
  color: white;
  font-size: 0.6rem;
  font-weight: 800;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-left: -6px;
  border: 2px solid var(--surface-low);
}

.hero-aside-label {
  font-size: 0.65rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--outline);
}

/* ── SECTION ── */
.section { padding: 56px 0; }

.section-overline {
  font-size: 0.68rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--on-surface-variant);
  margin-bottom: 6px;
}

.section-title {
  font-size: 1.65rem;
  font-weight: 800;
  letter-spacing: -0.03em;
  margin-bottom: 24px;
}

/* ── CATEGORIES ── */
.categories {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
  margin-bottom: 40px;
}

.category-btn {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 9px 18px;
  border-radius: 9999px;
  border: 1px solid var(--outline-variant);
  background: var(--surface-lowest);
  color: var(--on-surface);
  font-size: 0.875rem;
  font-weight: 600;
  cursor: pointer;
  transition: all var(--transition);
  white-space: nowrap;
  font-family: 'Inter', sans-serif;
}

.category-btn:hover {
  background: var(--surface-low);
  border-color: var(--primary-fixed-dim);
  transform: translateY(-1px);
}

[data-theme="dark"] .category-btn {
  border-color: rgba(255,255,255,0.1);
}

.category-btn.active {
  background: linear-gradient(135deg, var(--primary) 0%, var(--primary-container) 100%);
  color: var(--on-primary);
  box-shadow: 0 4px 18px rgba(72, 0, 178, 0.3);
}

[data-theme="dark"] .category-btn.active {
  background: linear-gradient(135deg, #5c00d8 0%, #7c2aff 100%);
  color: #ffffff;
  box-shadow: 0 4px 18px rgba(124, 42, 255, 0.35);
}

/* ── TOOLS LAYOUT ── */
.tools-layout {
  display: flex;
  gap: 48px;
  align-items: flex-start;
}

.tools-main { flex: 1; min-width: 0; }

.tools-sidebar {
  width: 280px;
  flex-shrink: 0;
  position: sticky;
  top: 80px;
}

.tools-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 18px;
}

/* ── TOOL CARD ── */
.tool-card {
  background: var(--surface-lowest);
  border-radius: var(--radius);
  padding: 28px;
  transition: all 0.2s ease-out;
  cursor: pointer;
  display: block;
  border: 1px solid var(--outline-variant);
  box-shadow: 0 1px 3px rgba(0,0,0,0.06);
}

.tool-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
  border-color: var(--primary-fixed-dim);
  color: var(--on-surface);
}

[data-theme="dark"] .tool-card {
  border-color: rgba(255,255,255,0.07);
  box-shadow: none;
}

.tool-card-icon {
  width: 48px;
  height: 48px;
  border-radius: var(--radius);
  background: var(--primary-fixed);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 16px;
  transition: transform var(--transition);
}

.tool-card:hover .tool-card-icon { transform: scale(1.1); }

.tool-card-icon svg {
  width: 24px;
  height: 24px;
  color: var(--primary);
}

.tool-card-icon.icon-secondary { background: var(--secondary-fixed); }
.tool-card-icon.icon-secondary svg { color: var(--secondary); }
.tool-card-icon.icon-tertiary { background: var(--tertiary-fixed); }
.tool-card-icon.icon-tertiary svg { color: var(--tertiary); }
.tool-card-icon.icon-neutral { background: var(--surface-highest); }
.tool-card-icon.icon-neutral svg { color: var(--on-surface-variant); }

.tool-card h3 {
  font-size: 1rem;
  font-weight: 700;
  margin-bottom: 7px;
  color: var(--on-surface);
}

.tool-card p {
  color: var(--on-surface-variant);
  font-size: 0.875rem;
  line-height: 1.6;
  margin-bottom: 14px;
}

.tool-card-link {
  display: flex;
  align-items: center;
  gap: 6px;
  color: var(--primary);
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  transition: gap var(--transition);
}

.tool-card:hover .tool-card-link { gap: 10px; }

.tool-card-link svg {
  width: 14px;
  height: 14px;
}

.tool-card-tags { display: none; }

/* ── SIDEBAR ── */
[data-theme="dark"] .sidebar-feature {
  background: linear-gradient(135deg, #5c00d8 0%, #7c2aff 100%);
}

.sidebar-feature {
  background: linear-gradient(135deg, var(--primary-container) 0%, var(--primary) 100%);
  border-radius: var(--radius);
  padding: 28px;
  color: var(--on-primary);
  margin-bottom: 18px;
  position: relative;
  overflow: hidden;
}

.sidebar-feature::after {
  content: '';
  position: absolute;
  right: -20px;
  bottom: -20px;
  width: 100px;
  height: 100px;
  background: rgba(255,255,255,0.1);
  border-radius: 50%;
  filter: blur(24px);
  pointer-events: none;
}

.sidebar-feature h4 {
  font-size: 1.4rem;
  font-weight: 900;
  letter-spacing: -0.03em;
  margin-bottom: 10px;
  color: var(--on-primary);
}

.sidebar-feature p {
  font-size: 0.85rem;
  opacity: 0.9;
  margin-bottom: 18px;
  line-height: 1.55;
  color: var(--on-primary);
}

.sidebar-feature .btn {
  width: 100%;
  background: rgba(255,255,255,0.18);
  color: white;
  backdrop-filter: blur(8px);
}

.sidebar-feature .btn:hover {
  background: rgba(255,255,255,0.28);
  transform: none;
  box-shadow: none;
}

/* ── AD CONTAINERS ── */
.ad-container {
  background: var(--surface-low);
  border-radius: var(--radius);
  padding: 8px 12px;
  text-align: center;
  color: transparent; /* hide placeholder text */
  font-size: 0;
  margin: 40px 0 0;
  display: flex;
  align-items: center;
  justify-content: center;
  border: none;
  position: relative;
  overflow: visible;
}

/* "Publicité" micro-label above the slot */
.ad-container::before {
  content: 'Publicité';
  position: absolute;
  top: -18px;
  left: 0;
  font-size: 0.6rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--outline);
  opacity: 0.55;
}

.ad-container.leaderboard { min-height: 90px; width: 100%; max-width: 728px; margin-inline: auto; }
.ad-container.banner      { min-height: 60px; width: 100%; max-width: 468px; margin-inline: auto; }
.ad-container.rectangle   { min-height: 250px; width: 100%; max-width: 300px; }
.ad-container.ad-bottom   { min-height: 250px; width: 100%; max-width: 300px; margin-inline: auto; }

/* ── FOOTER ── */
footer {
  background: var(--surface-low);
  border-radius: var(--radius-lg) var(--radius-lg) 0 0;
  padding: 64px 0 32px;
  margin-top: 80px;
}

.footer-content {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 48px;
  margin-bottom: 48px;
}

.footer-section h4 {
  font-size: 0.68rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--on-surface-variant);
  margin-bottom: 18px;
}

.footer-section ul { list-style: none; }
.footer-section li { margin-bottom: 10px; }

.footer-section a {
  color: var(--on-surface-variant);
  font-size: 0.9rem;
  transition: all var(--transition);
  display: inline-block;
}

.footer-section a:hover {
  color: var(--primary);
  transform: translateX(3px);
}

.footer-section p {
  color: var(--on-surface-variant);
  font-size: 0.875rem;
  line-height: 1.65;
}

.footer-bottom {
  padding-top: 24px;
  border-top: 1px solid rgba(203, 195, 217, 0.15);
  display: flex;
  justify-content: space-between;
  align-items: center;
  color: var(--outline);
  font-size: 0.72rem;
  letter-spacing: 0.05em;
  text-transform: uppercase;
}

/* ── BREADCRUMB ── */
.breadcrumb {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 16px 0;
  font-size: 0.875rem;
  color: var(--on-surface-variant);
}

.breadcrumb a { color: var(--on-surface-variant); }
.breadcrumb a:hover { color: var(--primary); }
.breadcrumb span { opacity: 0.5; }

/* ── TOOL PAGE ── */
.tool-page { padding: 36px 0 100px; }

/* Layout deux colonnes : contenu principal + sidebar sticky */
.tool-layout {
  display: flex;
  gap: 48px;
  align-items: flex-start;
}

.tool-main {
  flex: 1;
  min-width: 0;
}

.tool-aside {
  width: 300px;
  flex-shrink: 0;
  position: sticky;
  top: 90px;
}

.ad-sticky {
  width: 300px;
  min-height: 600px;
  margin: 0;
}

.ad-inarticle {
  min-height: 250px;
  width: 100%;
  margin: 32px 0;
}

/* Responsive : sidebar disparaît sous 1024px */
@media (max-width: 1024px) {
  .tool-layout { display: block; }
  .tool-aside { display: none; }
}

.tool-header { margin-bottom: 36px; }

.tool-header h1 {
  font-size: 2rem;
  font-weight: 900;
  letter-spacing: -0.03em;
  margin-bottom: 8px;
}

.tool-header p {
  color: var(--on-surface-variant);
  font-size: 0.95rem;
}

.tool-interface {
  background: var(--surface-lowest);
  border-radius: var(--radius-lg);
  padding: 36px;
  margin-bottom: 36px;
  box-shadow: var(--shadow);
  border: 1px solid var(--outline-variant);
}

[data-theme="dark"] .tool-interface {
  border-color: rgba(255,255,255,0.07);
}

.tool-input-group { margin-bottom: 22px; }

.tool-input-group label {
  display: block;
  font-weight: 600;
  font-size: 0.875rem;
  letter-spacing: -0.01em;
  margin-bottom: 8px;
  color: var(--on-surface);
}

.tool-input-group input,
.tool-input-group textarea,
.tool-input-group select {
  width: 100%;
  padding: 13px 16px;
  border: none;
  border-radius: var(--radius);
  font-size: 0.95rem;
  background: var(--surface-low);
  color: var(--on-surface);
  transition: all var(--transition);
  font-family: 'Inter', sans-serif;
}

.tool-input-group input:focus,
.tool-input-group textarea:focus,
.tool-input-group select:focus {
  outline: none;
  background: var(--surface-lowest);
  box-shadow: 0 0 0 2px var(--primary);
}

.tool-input-group textarea {
  min-height: 160px;
  resize: vertical;
}

.tool-result {
  background: var(--surface-low);
  border-radius: var(--radius);
  padding: 22px;
  margin-top: 22px;
  position: relative;
  border: 1px solid var(--outline-variant);
}

[data-theme="dark"] .tool-result {
  border-color: rgba(255,255,255,0.06);
}

.tool-result-label {
  font-size: 0.68rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--outline);
  margin-bottom: 8px;
}

.tool-result-content {
  font-size: 1.1rem;
  font-weight: 600;
  word-break: break-all;
  color: var(--on-surface);
}

.copy-btn {
  position: absolute;
  top: 14px;
  right: 14px;
  padding: 8px 14px;
  font-size: 0.8rem;
  border-radius: var(--radius-sm);
}

.copy-btn.copied {
  background: var(--success);
  color: white;
}

.tool-options {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 22px;
}

.option-checkbox {
  display: flex;
  align-items: center;
  gap: 10px;
  cursor: pointer;
  padding: 9px 14px;
  border-radius: var(--radius-sm);
  background: var(--surface-low);
  transition: all var(--transition);
  border: none;
}

.option-checkbox:hover { background: var(--surface-mid); }

.option-checkbox input {
  width: 17px;
  height: 17px;
  accent-color: var(--primary);
}

/* ── INFO / FAQ ── */
.info-section { margin-bottom: 36px; }

.info-section h2 {
  font-size: 1.3rem;
  font-weight: 800;
  letter-spacing: -0.02em;
  margin-bottom: 14px;
}

.info-section ul { padding-left: 20px; }

.info-section li {
  margin-bottom: 9px;
  color: var(--on-surface-variant);
  font-size: 0.9rem;
}

.info-section li strong { color: var(--primary); font-weight: 600; }

.faq-item {
  background: var(--surface-lowest);
  border-radius: var(--radius);
  margin-bottom: 8px;
  overflow: hidden;
  border: 1px solid var(--outline-variant);
  box-shadow: 0 1px 3px rgba(0,0,0,0.05);
}

[data-theme="dark"] .faq-item {
  border-color: rgba(255,255,255,0.07);
  box-shadow: none;
}

.faq-question {
  padding: 17px 20px;
  font-weight: 600;
  font-size: 0.9rem;
  cursor: pointer;
  display: flex;
  justify-content: space-between;
  align-items: center;
  color: var(--on-surface);
  transition: all var(--transition);
}

.faq-question:hover { background: var(--surface-low); }

.faq-answer {
  padding: 0 20px 18px;
  color: var(--on-surface-variant);
  font-size: 0.875rem;
  line-height: 1.65;
  display: none;
}

.faq-item.open .faq-answer { display: block; }

.faq-question svg {
  transition: transform var(--transition);
  color: var(--primary);
  flex-shrink: 0;
}

.faq-item.open .faq-question svg { transform: rotate(180deg); }

/* ── ABOUT / CONTACT / LEGAL ── */
.about-content,
.contact-content,
.legal-content {
  max-width: 720px;
  margin: 0 auto;
}

.about-content h1,
.contact-content h1,
.legal-content h1 {
  font-size: 2.25rem;
  font-weight: 900;
  letter-spacing: -0.03em;
  margin-bottom: 20px;
}

.about-content p,
.contact-content p,
.legal-content p {
  color: var(--on-surface-variant);
  margin-bottom: 16px;
  font-size: 0.95rem;
  line-height: 1.7;
}

.legal-content h2 {
  font-size: 1.2rem;
  font-weight: 700;
  margin: 28px 0 12px;
}

.contact-form {
  background: var(--surface-lowest);
  border-radius: var(--radius-lg);
  padding: 36px;
  box-shadow: var(--shadow);
  border: 1px solid var(--outline-variant);
}

[data-theme="dark"] .contact-form {
  border-color: rgba(255,255,255,0.07);
}

.form-group { margin-bottom: 18px; }

.form-group label {
  display: block;
  font-weight: 600;
  font-size: 0.875rem;
  margin-bottom: 8px;
}

.form-group input,
.form-group textarea {
  width: 100%;
  padding: 13px 16px;
  border: none;
  border-radius: var(--radius);
  font-size: 0.95rem;
  background: var(--surface-low);
  color: var(--on-surface);
  font-family: 'Inter', sans-serif;
  transition: all var(--transition);
}

.form-group input:focus,
.form-group textarea:focus {
  outline: none;
  background: var(--surface-lowest);
  box-shadow: 0 0 0 2px var(--primary);
}

.form-group textarea {
  min-height: 140px;
  resize: vertical;
}

/* ── SLIDER ── */
.slider-container { margin: 18px 0; }

.slider-container input[type="range"] {
  width: 100%;
  height: 5px;
  border-radius: 3px;
  background: var(--surface-mid);
  appearance: none;
  cursor: pointer;
  border: none;
}

.slider-container input[type="range"]::-webkit-slider-thumb {
  appearance: none;
  width: 21px;
  height: 21px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--primary), var(--primary-container));
  cursor: pointer;
  box-shadow: 0 2px 8px rgba(72, 0, 178, 0.3);
  transition: transform var(--transition);
}

.slider-container input[type="range"]::-webkit-slider-thumb:hover {
  transform: scale(1.15);
}

.slider-value {
  display: flex;
  justify-content: space-between;
  font-weight: 600;
  font-size: 0.875rem;
  margin-top: 10px;
}

/* ── TOAST ── */
.toast {
  position: fixed;
  bottom: 96px;
  right: 24px;
  background: var(--inverse-surface);
  color: var(--inverse-on-surface);
  padding: 12px 22px;
  border-radius: var(--radius);
  font-size: 0.875rem;
  font-weight: 500;
  transform: translateY(120px);
  opacity: 0;
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  z-index: 999;
  border: none;
  box-shadow: var(--shadow-lg);
}

.toast.show { transform: translateY(0); opacity: 1; }
.toast.success { background: var(--success); color: white; }
.toast.error { background: var(--error); color: white; }

/* ── TOOL TRAY (floating dock) ── */
.tool-tray {
  position: fixed;
  bottom: 24px;
  left: 50%;
  transform: translateX(-50%);
  z-index: 50;
}

.tool-tray-inner {
  background: rgba(249, 249, 249, 0.72);
  backdrop-filter: blur(32px);
  -webkit-backdrop-filter: blur(32px);
  padding: 12px 22px;
  border-radius: 9999px;
  box-shadow: 0 8px 40px rgba(72, 0, 178, 0.14), 0 0 0 1px rgba(203, 195, 217, 0.25);
  display: flex;
  align-items: center;
  gap: 18px;
}

[data-theme="dark"] .tool-tray-inner {
  background: rgba(15, 13, 26, 0.72);
  box-shadow: 0 8px 40px rgba(0, 0, 0, 0.4), 0 0 0 1px rgba(58, 53, 80, 0.4);
}

.tool-tray-divider {
  width: 1px;
  height: 22px;
  background: rgba(203, 195, 217, 0.3);
}

.tool-tray-btn {
  background: transparent;
  border: none;
  cursor: pointer;
  color: var(--on-surface-variant);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 4px;
  border-radius: var(--radius-sm);
  transition: color var(--transition);
  position: relative;
}

.tool-tray-btn:hover { color: var(--primary); }

.tool-tray-btn svg { width: 20px; height: 20px; }

.tool-tray-btn.tray-primary {
  background: linear-gradient(135deg, var(--primary), var(--primary-container));
  color: white;
  padding: 9px;
  border-radius: 9999px;
  box-shadow: 0 4px 16px rgba(72, 0, 178, 0.35);
}

.tool-tray-btn.tray-primary:hover { color: white; }

.tool-tray-tooltip {
  position: absolute;
  bottom: calc(100% + 10px);
  left: 50%;
  transform: translateX(-50%);
  background: var(--inverse-surface);
  color: var(--inverse-on-surface);
  font-size: 0.62rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  padding: 5px 10px;
  border-radius: var(--radius-sm);
  white-space: nowrap;
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--transition);
}

.tool-tray-btn:hover .tool-tray-tooltip { opacity: 1; }

/* ── RESPONSIVE ── */
@media (max-width: 1100px) {
  .tools-sidebar { display: none; }
  .hero-aside { display: none; }
}

@media (max-width: 768px) {
  .hero h1 { font-size: 2.1rem; }
  .nav-links { display: none; }
  .tools-grid { grid-template-columns: 1fr; }
  .tool-interface { padding: 22px; }
  .tool-options { flex-direction: column; }
  .footer-content { grid-template-columns: 1fr; }
  .footer-bottom { flex-direction: column; gap: 8px; text-align: center; }
  .tool-tray { display: none; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}

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

.animate-in { animation: fadeInUp 0.4s ease forwards; }
.delay-1 { animation-delay: 0.05s; }
.delay-2 { animation-delay: 0.1s; }
.delay-3 { animation-delay: 0.15s; }
.delay-4 { animation-delay: 0.2s; }