/* ============================================================================
   tamic-shared.css — CSS partagé entre les 12 pages SEO
   Audit complet — déduplication étendue (footer + skip-link + a11y)

   Chaque page doit définir SES couleurs sur <body> :
     --c1     :  couleur principale (#hex)        ex: #5fc7fa
     --c2     :  couleur secondaire (#hex)        ex: #7aa2ff
     --c-rgb  :  triplet RGB de --c1 (séparé par espace)   ex: 95 199 250

   Exemple :
     <body style="--c1: #5fc7fa; --c2: #7aa2ff; --c-rgb: 95 199 250;">

   Les valeurs rgba() restantes ci-dessous correspondent à des couleurs
   neutres (fonds, textes) communes à toutes les pages.
   ============================================================================ */

/* ----------------------------------------------------------------------------
   1. RESET + BASE
   -------------------------------------------------------------------------- */
* { box-sizing: border-box; margin: 0; padding: 0; }
body { font-family: 'Manrope', -apple-system, sans-serif; background: #030d1a; color: #e8f3ff; line-height: 1.7; font-size: 16px; -webkit-font-smoothing: antialiased; }
a { color: var(--c1); text-decoration: none; }
a:hover { text-decoration: underline; }

/* Accessibilité : respecte les préférences "réduire les animations" */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
}

/* Skip-link clavier (a11y) */
.skip-link { position: absolute; top: -100px; left: 16px; z-index: 9999; background: #42e0bb; color: #030f22; padding: 12px 24px; border-radius: 8px; font-weight: 700; text-decoration: none; transition: top 0.15s ease; font-family: 'Manrope', sans-serif; font-size: 14px; }
.skip-link:focus { top: 12px; outline: 2px solid #030f22; outline-offset: 2px; }

/* ----------------------------------------------------------------------------
   2. NAV TOP (sticky)
   -------------------------------------------------------------------------- */
.top-nav-wrapper { background: rgba(3, 13, 26, 0.85); backdrop-filter: blur(12px); border-bottom: 1px solid rgba(120, 210, 255, 0.12); position: sticky; top: 0; z-index: 50; }
.top-nav { padding: 18px 24px; display: flex; align-items: center; justify-content: space-between; max-width: 1200px; margin: 0 auto; gap: 16px; }
.top-nav-left { display: flex; align-items: center; gap: 18px; }
.top-nav-right { display: flex; align-items: center; gap: 12px; }
.top-nav-cta { padding: 10px 18px; border-radius: 10px; background: linear-gradient(135deg, var(--c1), var(--c2)); color: #030f22; font-weight: 800; font-size: 13.5px; transition: transform 0.2s; text-decoration: none; }
.top-nav-cta:hover { transform: translateY(-1px); text-decoration: none; }
.nav-back { display: inline-flex; align-items: center; gap: 6px; padding: 8px 14px; border-radius: 10px; background: rgba(120,210,255,0.08); border: 1px solid rgba(120,210,255,0.15); color: rgba(220,235,255,0.8); font-weight: 700; font-size: 13px; text-decoration: none; transition: all 0.2s; }
.nav-back:hover { background: rgba(120,210,255,0.14); border-color: rgba(120,210,255,0.3); text-decoration: none; transform: translateX(-2px); }
.nav-guides-wrap { position: relative; }
.nav-guides-btn { display: inline-flex; align-items: center; gap: 6px; padding: 9px 14px; border-radius: 8px; background: transparent; border: 1px solid rgba(120,210,255,0.35); color: #78d2ff; font-weight: 700; font-size: 13px; cursor: pointer; transition: all 0.2s; font-family: inherit; }
.nav-guides-btn:hover, .nav-guides-btn[aria-expanded="true"] { color: #a8e2ff; border-color: rgba(120,210,255,0.55); }
.nav-guides-btn .chevron { transition: transform 0.2s; }
.nav-guides-btn[aria-expanded="true"] .chevron { transform: rotate(180deg); }
.nav-guides-menu { position: absolute; top: calc(100% + 8px); right: 0; min-width: 560px; background: linear-gradient(165deg, rgba(15, 30, 55, 0.97), rgba(8, 18, 36, 0.98)); border: 1px solid rgba(120, 210, 255, 0.22); border-radius: 14px; padding: 10px; box-shadow: 0 24px 50px -12px rgba(0,0,0,0.6); backdrop-filter: blur(16px); -webkit-backdrop-filter: blur(16px); opacity: 0; visibility: hidden; transform: translateY(-6px); transition: opacity 0.2s, transform 0.2s, visibility 0s linear 0.2s; z-index: 9999; }
.nav-guides-menu.is-open { opacity: 1; visibility: visible; transform: translateY(0); transition: opacity 0.2s, transform 0.2s, visibility 0s; }
.nav-guides-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 4px 8px; }
.nav-guides-section { font-size: 10.5px; font-weight: 800; letter-spacing: 1.6px; text-transform: uppercase; color: rgba(120,210,255,0.55); padding: 8px 12px 6px; grid-column: 1 / -1; }
.nav-guides-section + .nav-guides-section { border-top: 1px solid rgba(120,210,255,0.08); margin-top: 4px; }
.nav-guides-item { display: flex; align-items: center; gap: 12px; padding: 10px 12px; border-radius: 10px; text-decoration: none; color: #e8f3ff; transition: background 0.2s; }
.nav-guides-item:hover { background: rgba(var(--g-rgb), 0.08); text-decoration: none; }
.nav-guides-item.is-current { background: rgba(var(--g-rgb), 0.12); pointer-events: none; }
.nav-guides-item-icon { flex: 0 0 32px; width: 32px; height: 32px; border-radius: 9px; background: linear-gradient(135deg, rgba(var(--g-rgb), 0.22), rgba(var(--g-rgb), 0.06)); border: 1px solid rgba(var(--g-rgb), 0.3); color: var(--g-c1); display: grid; place-items: center; transition: transform 0.25s; }
.nav-guides-item:hover .nav-guides-item-icon { transform: rotate(-6deg) scale(1.08); }
.nav-guides-item-label { display: flex; flex-direction: column; gap: 2px; min-width: 0; flex: 1; }
.nav-guides-item-title { font-size: 13.5px; font-weight: 800; color: #f0f8ff; letter-spacing: -0.1px; }
.nav-guides-item-desc { font-size: 11.5px; color: rgba(220, 235, 255, 0.55); font-weight: 500; }
.nav-guides-item-current-tag { font-size: 9.5px; padding: 2px 6px; border-radius: 4px; background: rgba(120,210,255,0.15); color: rgba(120,210,255,0.85); margin-left: 6px; letter-spacing: 0.5px; font-weight: 800; align-self: center; flex-shrink: 0; }
@media (max-width: 700px) {
  .nav-guides-menu { position: fixed !important; top: 64px !important; left: 16px !important; right: 16px !important; min-width: 0 !important; max-height: calc(100vh - 80px); overflow-y: auto; }
  .nav-guides-grid { grid-template-columns: 1fr; }
}

/* ----------------------------------------------------------------------------
   3. HERO + TOC
   -------------------------------------------------------------------------- */
.hero { padding: 80px 24px 48px; background: radial-gradient(ellipse 800px 500px at 50% 0%, rgb(var(--c-rgb) / 0.18) 0%, transparent 60%), #030d1a; text-align: center; }
.hero-eyebrow { display: inline-block; padding: 6px 16px; border-radius: 999px; background: rgb(var(--c-rgb) / 0.1); border: 1px solid rgb(var(--c-rgb) / 0.3); color: var(--c1); font-size: 11.5px; font-weight: 800; letter-spacing: 2px; text-transform: uppercase; margin-bottom: 20px; }
.hero h1 { font-family: 'Bebas Neue', sans-serif; font-size: clamp(36px, 6vw, 68px); letter-spacing: 2px; color: #f0f8ff; line-height: 1; margin-bottom: 20px; max-width: 900px; margin-left: auto; margin-right: auto; }
.hero h1 .accent { background: linear-gradient(90deg, var(--c1), var(--c2)); -webkit-background-clip: text; background-clip: text; color: transparent; }
.hero-lede { font-size: 18px; color: rgba(200, 230, 255, 0.7); max-width: 720px; margin: 0 auto; line-height: 1.6; }
.hero-stats { display: flex; justify-content: center; gap: 32px; margin-top: 32px; flex-wrap: wrap; }
.hero-stat { text-align: center; }
.hero-stat-num { font-family: 'Bebas Neue', sans-serif; font-size: 32px; color: var(--c1); line-height: 1; }
.hero-stat-label { font-size: 11.5px; color: rgba(200,230,255,0.5); text-transform: uppercase; letter-spacing: 1.5px; margin-top: 4px; font-weight: 700; }

.toc { max-width: 1100px; margin: 64px auto 0; padding: 0 24px; }
.toc-title { font-size: 12px; font-weight: 800; letter-spacing: 3px; text-transform: uppercase; color: rgba(220,235,255,0.5); margin-bottom: 32px; text-align: center; position: relative; }
.toc-title::before, .toc-title::after { content: ''; position: absolute; top: 50%; width: 80px; height: 1px; background: linear-gradient(90deg, transparent, rgb(var(--c-rgb) / 0.4), transparent); }
.toc-title::before { left: calc(50% - 140px); }
.toc-title::after { right: calc(50% - 140px); }
.toc-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(280px, 1fr)); gap: 12px; }
.toc-card { display: flex; align-items: center; gap: 16px; padding: 18px 20px; background: linear-gradient(165deg, rgba(15,30,55,0.55), rgba(8,18,36,0.5)); border: 1px solid rgb(var(--c-rgb) / 0.12); border-radius: 14px; text-decoration: none; transition: all 0.25s cubic-bezier(0.2, 0, 0, 1); position: relative; overflow: hidden; }
.toc-card::before { content: ''; position: absolute; inset: 0; background: linear-gradient(135deg, rgb(var(--c-rgb) / 0.10) 0%, transparent 60%); opacity: 0; transition: opacity 0.25s; pointer-events: none; }
.toc-card:hover { border-color: rgb(var(--c-rgb) / 0.5); background: linear-gradient(165deg, rgba(15,30,55,0.85), rgba(8,18,36,0.75)); transform: translateY(-2px); box-shadow: 0 8px 24px -8px rgb(var(--c-rgb) / 0.25); }
.toc-card:hover::before { opacity: 1; }
.toc-card-num { flex: 0 0 auto; font-family: 'Bebas Neue', sans-serif; font-size: 30px; letter-spacing: 1.5px; color: rgb(var(--c-rgb) / 0.55); line-height: 1; transition: color 0.25s, transform 0.25s; }
.toc-card:hover .toc-card-num { color: var(--c1); transform: scale(1.05); }
.toc-card-title { flex: 1; font-size: 14px; font-weight: 700; line-height: 1.4; color: rgba(240,250,255,0.92); }
.toc-card-arrow { flex: 0 0 auto; width: 16px; height: 16px; color: rgb(var(--c-rgb) / 0.35); transition: transform 0.25s, color 0.25s; }
.toc-card:hover .toc-card-arrow { transform: translateX(3px); color: var(--c1); }
@media (max-width: 700px) { .toc-grid { grid-template-columns: 1fr; } }

/* ----------------------------------------------------------------------------
   4. CONTENU PRINCIPAL (article)
   -------------------------------------------------------------------------- */
.container { max-width: 800px; margin: 0 auto; padding: 56px 24px; }
.container h2 { font-family: 'Sora', 'Manrope', sans-serif; font-size: clamp(26px, 4vw, 36px); font-weight: 800; color: #f0f8ff; letter-spacing: -0.5px; margin: 64px 0 20px; line-height: 1.2; scroll-margin-top: 80px; }
.container h2:first-child { margin-top: 0; }
.container h2::before { content: ''; display: block; width: 56px; height: 3px; background: linear-gradient(90deg, var(--c1), transparent); margin-bottom: 20px; border-radius: 2px; }
.container h3 { font-family: 'Sora', 'Manrope', sans-serif; font-size: 21px; font-weight: 700; color: #f0f8ff; margin: 40px 0 14px; letter-spacing: -0.3px; }
.container h4 { font-family: 'Sora', 'Manrope', sans-serif; font-size: 17px; font-weight: 700; color: #f0f8ff; margin: 28px 0 10px; }
.container p { color: rgba(220, 235, 255, 0.78); font-size: 16.5px; margin-bottom: 18px; }
.container strong { color: #f0f8ff; font-weight: 700; }
.container em { color: var(--c1); font-style: italic; }
.container ul, .container ol { margin: 14px 0 24px 24px; color: rgba(220, 235, 255, 0.78); }
.container li { margin-bottom: 10px; line-height: 1.65; }
.container li::marker { color: var(--c1); }
.container code { background: rgb(var(--c-rgb) / 0.12); border: 1px solid rgb(var(--c-rgb) / 0.2); color: #cfe6ff; padding: 2px 7px; border-radius: 5px; font-family: ui-monospace, monospace; font-size: 14px; }

.callout { padding: 24px 28px; border-radius: 14px; background: linear-gradient(135deg, rgb(var(--c-rgb) / 0.08), rgba(120, 210, 255, 0.04)); border: 1px solid rgb(var(--c-rgb) / 0.25); border-left: 3px solid var(--c1); margin: 32px 0; }
.callout-title { font-size: 11.5px; font-weight: 800; color: var(--c1); letter-spacing: 1.8px; text-transform: uppercase; margin-bottom: 10px; }
.callout p:last-child { margin-bottom: 0; }
.callout.warn { border-color: rgba(255,180,90,0.3); border-left-color: #ffb45a; }
.callout.warn .callout-title { color: #ffb45a; }
.callout.success { border-color: rgba(66,224,187,0.3); border-left-color: #42e0bb; }
.callout.success .callout-title { color: #42e0bb; }

.exercise-block { background: rgba(15, 30, 55, 0.4); border: 1px solid rgb(var(--c-rgb) / 0.18); border-radius: 16px; padding: 28px; margin: 36px 0; }
.exercise-label { display: inline-block; font-size: 11px; font-weight: 800; color: var(--c2); background: rgb(var(--c-rgb) / 0.1); border: 1px solid rgb(var(--c-rgb) / 0.3); padding: 4px 12px; border-radius: 999px; letter-spacing: 1.8px; text-transform: uppercase; margin-bottom: 16px; }
.exercise-grids { display: flex; gap: 24px; align-items: flex-start; flex-wrap: wrap; justify-content: center; margin: 24px 0; }
.exercise-grid-item { text-align: center; }
.exercise-grid-label { font-size: 11.5px; color: rgba(120,210,255,0.7); text-transform: uppercase; letter-spacing: 1.5px; font-weight: 700; margin-bottom: 10px; }
.exercise-grid-svg { background: #061425; border: 1px solid rgb(var(--c-rgb) / 0.2); border-radius: 10px; padding: 14px; display: inline-block; }
.options-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(110px, 1fr)); gap: 12px; margin: 20px 0; }
.option-item { background: #061425; border: 1.5px solid rgb(var(--c-rgb) / 0.15); border-radius: 10px; padding: 14px 12px; text-align: center; transition: all 0.2s; font-family: ui-monospace, monospace; font-size: 14px; color: #cfe6ff; letter-spacing: 1px; font-weight: 700; }
.option-item.correct { border-color: rgba(66,224,187,0.6); background: rgba(66,224,187,0.06); color: #cfeee0; }
.option-letter { display: inline-block; font-family: 'Bebas Neue', sans-serif; font-size: 14px; color: rgba(120,210,255,0.6); margin-bottom: 8px; letter-spacing: 1px; }
.option-item.correct .option-letter { color: #42e0bb; background: rgba(66,224,187,0.15); padding: 2px 8px; border-radius: 999px; }

.code-display { font-family: ui-monospace, monospace; background: #061425; border: 1px solid rgb(var(--c-rgb) / 0.3); border-radius: 8px; padding: 14px 18px; font-size: 18px; letter-spacing: 3px; color: var(--c1); display: inline-block; font-weight: 700; }

.table-wrap { overflow-x: auto; margin: 24px 0; }
table.code-table { border-collapse: collapse; width: 100%; font-family: ui-monospace, monospace; }
table.code-table th, table.code-table td { padding: 8px 12px; text-align: center; border: 1px solid rgb(var(--c-rgb) / 0.2); font-size: 14px; }
table.code-table th { background: rgb(var(--c-rgb) / 0.1); color: var(--c1); font-weight: 700; }
table.code-table td { color: #cfe6ff; }

.cta-block { margin: 56px auto; text-align: center; padding: 40px 32px; border-radius: 20px; background: linear-gradient(160deg, rgba(15, 30, 55, 0.9), rgba(8, 18, 36, 0.95)); border: 1px solid rgb(var(--c-rgb) / 0.3); box-shadow: 0 24px 60px -20px rgb(var(--c-rgb) / 0.2); }
.cta-block-title { font-family: 'Sora', 'Manrope', sans-serif; font-size: clamp(22px, 3vw, 28px); font-weight: 800; color: #f0f8ff; margin-bottom: 12px; letter-spacing: -0.3px; }
.cta-block-desc { color: rgba(220, 235, 255, 0.7); font-size: 15.5px; margin-bottom: 24px; max-width: 480px; margin-left: auto; margin-right: auto; }
.cta-btn { display: inline-flex; align-items: center; gap: 8px; padding: 14px 28px; border-radius: 12px; background: linear-gradient(135deg, var(--c1), var(--c2)); color: #030f22; font-weight: 900; font-size: 14.5px; letter-spacing: 0.3px; box-shadow: 0 12px 30px -8px rgb(var(--c-rgb) / 0.55); transition: transform 0.2s; }
.cta-btn:hover { transform: translateY(-2px); text-decoration: none; }

.other-modules { background: #061425; padding: 64px 24px; border-top: 1px solid rgba(120, 210, 255, 0.1); }
.other-modules-inner { max-width: 1180px; margin: 0 auto; }
.other-modules h2 { font-family: 'Bebas Neue', sans-serif; font-size: 32px; letter-spacing: 2px; color: #f0f8ff; text-align: center; margin-bottom: 12px; }
.other-modules-sub { text-align: center; color: rgba(200,230,255,0.55); font-size: 14.5px; margin-bottom: 32px; }
.other-modules-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); gap: 14px; }
.other-module-link { display: block; padding: 18px 20px; border-radius: 14px; background: rgba(15,30,55,0.5); border: 1px solid rgba(120,210,255,0.15); color: #e8f3ff; font-weight: 700; font-size: 14.5px; transition: all 0.3s; }
.other-module-link:hover { background: rgba(15,30,55,0.8); border-color: rgba(120,210,255,0.4); transform: translateY(-2px); text-decoration: none; }
.other-module-link-meta { display: block; margin-top: 4px; font-size: 11.5px; color: rgba(120,210,255,0.7); letter-spacing: 1px; text-transform: uppercase; font-weight: 800; }

/* ----------------------------------------------------------------------------
   5. FOOTER (anciennement dupliqué dans chaque page)
   -------------------------------------------------------------------------- */
/* Footer "simple" (legacy, certaines vieilles pages) — exclut explicitement
   le footer complet `.site-footer` qui a son propre layout en grille. */
footer:not(.site-footer) { background: #020a14; padding: 32px 24px; text-align: center; border-top: 1px solid rgba(120,210,255,0.1); color: rgba(200,230,255,0.5); font-size: 13px; }
footer:not(.site-footer) a { color: rgba(120,210,255,0.8); }
footer:not(.site-footer) p { margin-bottom: 8px; }

/* Footer "complet" (cohérent avec index.html) — utilisé par les 12 pages SEO */
.site-footer { background: #020b18; border-top: 1px solid rgba(255,255,255,0.06); padding: 64px 32px 24px; text-align: left; }
.site-footer-inner { max-width: 1200px; margin: 0 auto; }
.site-footer-top { display: grid; grid-template-columns: 1.5fr 1fr 1fr 1fr; gap: 40px; padding-bottom: 36px; }
.site-footer-brand-row { display: flex; align-items: baseline; gap: 8px; margin-bottom: 14px; }
.site-footer-brand-mark { font-family: 'Bebas Neue', sans-serif; font-size: 22px; letter-spacing: 2.4px; color: #f0f8ff; }
.site-footer-brand-mark span { color: #78d2ff; }
.site-footer-tagline { font-size: 13px; line-height: 1.65; color: rgba(220,235,255,0.5); margin: 0 0 16px; max-width: 280px; }
.site-footer-col-title { font-size: 11px; font-weight: 800; color: rgba(120,210,255,0.7); letter-spacing: 1.6px; text-transform: uppercase; margin: 0 0 18px; }
.site-footer-col-spacer { margin-top: 26px; }
.site-footer-list { list-style: none !important; padding: 0 !important; margin: 0; display: flex; flex-direction: column; gap: 4px; }
.site-footer-list li { list-style: none !important; padding-left: 0; }
.site-footer-list li::marker { content: ""; }
.site-footer-list a { display: inline-block; padding: 4px 0; font-size: 13.5px; color: rgba(220,235,255,0.65); text-decoration: none; transition: color .15s ease; }
.site-footer-list a:hover, .site-footer-list a:focus-visible { color: #fff; outline: none; }
.site-footer-bottom { border-top: 1px solid rgba(255,255,255,0.06); padding-top: 22px; display: flex; justify-content: space-between; align-items: center; flex-wrap: wrap; gap: 14px; }
.site-footer-copyright { font-size: 12px; color: rgba(200,230,255,0.4); }
.site-footer-legal { display: flex; flex-wrap: wrap; gap: 8px 22px; }
.site-footer-legal a { padding: 4px 0; font-size: 12px; color: rgba(200,230,255,0.55); text-decoration: none; transition: color .15s ease; }
.site-footer-legal a:hover, .site-footer-legal a:focus-visible { color: #fff; outline: none; }
@media (max-width: 900px) {
  .site-footer-top { grid-template-columns: 1fr 1fr; gap: 36px 28px; }
  .site-footer-brand { grid-column: 1 / -1; }
}
@media (max-width: 560px) {
  .site-footer { padding: 44px 20px 24px; text-align: left; }
  .site-footer-top { grid-template-columns: 1fr; gap: 28px; padding-bottom: 28px; }
  .site-footer-tagline { max-width: none; }
  .site-footer-col-title { margin-bottom: 12px; }
  .site-footer-col-spacer { margin-top: 22px; }
  .site-footer-list { gap: 2px; }
  .site-footer-list li { text-align: left; }
  .site-footer-list a { padding: 8px 0; font-size: 14.5px; }
  .site-footer-bottom { flex-direction: column; align-items: flex-start; gap: 14px; padding-top: 22px; text-align: left; }
  .site-footer-legal { gap: 8px 18px; }
  .site-footer-legal a { padding: 6px 0; font-size: 13px; }
}
@media (max-width: 380px) {
  .site-footer-legal { flex-direction: column; gap: 4px; }
}

/* ----------------------------------------------------------------------------
   6. RESPONSIVE GLOBAL
   -------------------------------------------------------------------------- */
@media (max-width: 600px) {
  .top-nav { padding: 14px 18px; }
  .top-nav-cta { padding: 9px 14px; font-size: 12.5px; }
  .hero { padding: 56px 18px 32px; }
  .hero-stats { gap: 18px; }
  .container { padding: 40px 18px; }
  .container h2 { margin-top: 48px; }
  .cta-block { padding: 28px 20px; }
  .exercise-block { padding: 18px; }
  .exercise-grids { gap: 16px; }
  .exercise-block > div[style*="grid-template-columns: repeat(5"] {
    grid-template-columns: repeat(2, 1fr) !important;
    gap: 14px !important;
  }
  .exercise-block svg { max-width: 100%; height: auto; }
  .code-display { font-size: 15px; letter-spacing: 2px; padding: 10px 14px; }
}
