:root {
      --blue: #1a3a6b;
      --blue-mid: #2952a3;
      --blue-light: #eef2fb;
      --gold: #c9a84c;
      --gold-warm: #e8c060;
      --gold-light: #faf3e0;
      --dark: #0d1b38;
      --surface: #f8f9fd;
      --text-muted: #7a8aaa;
      --radius: 16px;
      --nav-h: 72px;
    }
 
    *, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
    html { scroll-behavior: smooth; }
    body { font-family: 'DM Sans', sans-serif; color: var(--dark); background: #fff; overflow-x: hidden; }
    h1, h2, h3, h4 { font-family: 'Playfair Display', serif; }
 
    /* ===================== TOPBAR ===================== */
    .topbar {
      background: var(--dark);
      color: rgba(255,255,255,.65);
      font-size: .78rem;
      padding: 8px 24px;
      display: flex;
      justify-content: space-between;
      align-items: center;
      gap: 16px;
      letter-spacing: .01em;
    }
    .topbar a { color: inherit; text-decoration: none; transition: color .2s; }
    .topbar a:hover { color: var(--gold-warm); }
    .topbar-right { display: flex; align-items: center; gap: 12px; }
    .lang-btn {
      background: none; border: 1px solid rgba(255,255,255,.2);
      color: rgba(255,255,255,.6); font-size: .72rem; font-weight: 600;
      padding: 2px 10px; border-radius: 20px; cursor: pointer;
      transition: all .2s; font-family: 'DM Sans', sans-serif;
    }
    .lang-btn.lang-active { background: var(--gold); border-color: var(--gold); color: var(--dark); }
    .lang-btn:not(.lang-active):hover { border-color: rgba(255,255,255,.5); color: #fff; }
 
    /* ===================== NAVBAR ===================== */
    .navbar {
      position: sticky; top: 0; z-index: 100;
      background: rgba(13,27,56,.97);
      -webkit-backdrop-filter: blur(20px);
      backdrop-filter: blur(20px);
      border-bottom: 1px solid rgba(201,168,76,.15);
      height: var(--nav-h);
      display: flex; align-items: center;
      box-shadow: 0 2px 32px rgba(0,0,0,.25);
      transition: box-shadow .3s;
    }
    .navbar.scrolled { box-shadow: 0 4px 48px rgba(0,0,0,.4); }
    .nav-inner {
      max-width: 1280px; margin: 0 auto; padding: 0 24px;
      width: 100%;
      display: flex; align-items: center; justify-content: space-between;
    }
    .nav-brand { display: flex; align-items: center; gap: 12px; text-decoration: none; }
    .nav-logo {
      width: 44px; height: 44px; border-radius: 50%;
      background: var(--blue); display: flex; align-items: center;
      justify-content: center; font-family: 'Playfair Display', serif;
      font-size: 1.2rem; font-weight: 700; color: var(--gold);
      letter-spacing: .05em; overflow: hidden; flex-shrink: 0;
    }
    .nav-logo img { width: 100%; height: 100%; object-fit: cover; border-radius: 50%; }
    .brand-text { line-height: 1.2; }
    .brand-name {
      font-family: 'Playfair Display', serif;
      font-size: 1.25rem; font-weight: 700;
      color: #fff; letter-spacing: .04em;
    }
    .brand-sub { font-size: .7rem; color: rgba(255,255,255,.45); font-weight: 400; }
 
    .nav-links { display: flex; align-items: center; gap: 2px; }
    .nav-link {
      position: relative; padding: 8px 14px;
      color: rgba(255,255,255,.65); font-size: .875rem; font-weight: 500;
      text-decoration: none; border-radius: 8px;
      transition: all .2s; white-space: nowrap;
    }
    .nav-link:hover { color: #fff; background: rgba(255,255,255,.1); }
    .nav-link.active { color: var(--gold-warm); font-weight: 600; }
    .nav-link.active::after {
      content: ''; position: absolute; bottom: 0; left: 50%;
      transform: translateX(-50%);
      width: 20px; height: 2.5px; border-radius: 2px;
      background: var(--gold);
    }
    .nav-cta {
      background: var(--blue); color: #fff;
      padding: 9px 20px; border-radius: 10px;
      font-size: .875rem; font-weight: 600; text-decoration: none;
      transition: all .25s; margin-left: 8px;
      box-shadow: 0 4px 16px rgba(26,58,107,.25);
    }
    .nav-cta:hover { background: var(--blue-mid); transform: translateY(-1px); box-shadow: 0 6px 24px rgba(26,58,107,.35); }
 
    /* dropdown */
    .dropdown { position: relative; }
    .dropdown-trigger { display: flex; align-items: center; gap: 4px; }
    .dropdown-trigger svg { width: 12px; height: 12px; transition: transform .25s; }
    .dropdown:hover .dropdown-trigger svg { transform: rotate(180deg); }
    .dropdown-panel {
      display: none; position: absolute; top: calc(100% + 8px);
      left: 0; min-width: 210px;
      background: var(--dark); border-radius: 14px;
      box-shadow: 0 12px 48px rgba(0,0,0,.35);
      border: 1px solid rgba(201,168,76,.15);
      overflow: hidden;
      animation: fadeDown .2s ease;
    }
    @keyframes fadeDown { from { opacity:0; transform:translateY(-6px); } to { opacity:1; transform:translateY(0); } }
    .dropdown:hover .dropdown-panel { display: block; }
    .dropdown-panel a {
      display: block; padding: 11px 18px;
      font-size: .85rem; color: rgba(255,255,255,.6); text-decoration: none;
      transition: all .15s; border-left: 3px solid transparent;
    }
    .dropdown-panel a:hover {
      background: rgba(255,255,255,.07); color: var(--gold-warm);
      border-left-color: var(--gold); padding-left: 22px;
    }
 
    /* hamburger */
    .hamburger {
      display: none; background: none; border: 1px solid rgba(255,255,255,.2);
      border-radius: 10px; padding: 8px; cursor: pointer;
      flex-direction: column; gap: 5px; width: 40px; height: 40px;
      align-items: center; justify-content: center;
    }
    .hamburger span {
      display: block; width: 18px; height: 2px;
      background: rgba(255,255,255,.8); border-radius: 2px;
      transition: all .3s;
    }
    .hamburger.open span:nth-child(1) { transform: rotate(45deg) translate(5px,5px); }
    .hamburger.open span:nth-child(2) { opacity: 0; }
    .hamburger.open span:nth-child(3) { transform: rotate(-45deg) translate(5px,-5px); }
 
    .mobile-menu {
      display: none; position: fixed; top: 0; left: 0; right: 0; bottom: 0;
      background: rgba(13,27,56,.97); -webkit-backdrop-filter: blur(20px); backdrop-filter: blur(20px);
      z-index: 200; padding: 80px 32px 32px;
      flex-direction: column; gap: 8px;
      overflow-y: auto;
    }
    .mobile-menu.open { display: flex; }
    .mobile-close {
      position: absolute; top: 20px; right: 20px;
      background: rgba(255,255,255,.1); border: none;
      color: #fff; font-size: 1.5rem; cursor: pointer;
      width: 40px; height: 40px; border-radius: 50%;
      display: flex; align-items: center; justify-content: center;
    }
    .mobile-link {
      color: rgba(255,255,255,.75); font-size: 1.15rem; font-weight: 500;
      text-decoration: none; padding: 14px 0;
      border-bottom: 1px solid rgba(255,255,255,.08);
      transition: color .2s; font-family: 'Playfair Display', serif;
    }
    .mobile-link:hover, .mobile-link.active { color: var(--gold-warm); }
    .mobile-cta {
      background: var(--gold); color: var(--dark); font-weight: 700;
      text-align: center; padding: 14px; border-radius: 12px;
      text-decoration: none; margin-top: 12px; font-size: 1rem;
    }
 
    /* ===================== HERO ===================== */
    .hero {
      background: linear-gradient(135deg, var(--dark) 0%, #1b3872 60%, #2a5298 100%);
      position: relative; overflow: hidden;
      padding: 88px 24px 80px;
    }
    .hero-pattern {
      position: absolute; inset: 0;
      background-image:
        radial-gradient(circle at 80% 20%, rgba(201,168,76,.12) 0%, transparent 50%),
        radial-gradient(circle at 20% 80%, rgba(41,82,163,.3) 0%, transparent 50%);
      pointer-events: none;
    }
    .hero-grid {
      position: absolute; inset: 0;
      background-image: linear-gradient(rgba(255,255,255,.025) 1px, transparent 1px),
        linear-gradient(90deg, rgba(255,255,255,.025) 1px, transparent 1px);
      background-size: 60px 60px;
      pointer-events: none;
    }
    .hero-inner { max-width: 1280px; margin: 0 auto; position: relative; z-index: 1; }
    .hero-pill {
      display: inline-flex; align-items: center; gap: 8px;
      background: rgba(201,168,76,.15); border: 1px solid rgba(201,168,76,.3);
      color: var(--gold-warm); font-size: .78rem; font-weight: 600;
      padding: 6px 14px; border-radius: 20px; letter-spacing: .06em;
      text-transform: uppercase; margin-bottom: 20px;
    }
    .hero-pill::before { content: ''; width: 6px; height: 6px; border-radius: 50%; background: var(--gold-warm); }
    .hero h1 {
      font-size: clamp(2.8rem, 6vw, 5rem);
      font-weight: 700; color: #fff; line-height: 1.08;
      margin-bottom: 16px; letter-spacing: -.01em;
    }
    .hero h1 em { font-style: italic; color: var(--gold-warm); }
    .hero-sub {
      color: rgba(255,255,255,.6); font-size: 1.05rem;
      max-width: 520px; line-height: 1.7; margin-bottom: 28px;
    }
    .breadcrumb { display: flex; align-items: center; gap: 8px; font-size: .8rem; color: rgba(255,255,255,.35); }
    .breadcrumb a { color: inherit; text-decoration: none; transition: color .2s; }
    .breadcrumb a:hover { color: rgba(255,255,255,.8); }
    .breadcrumb-sep { opacity: .4; }
 
    /* ===================== TABS BAR ===================== */
    .tabs-bar {
      position: sticky; top: var(--nav-h); z-index: 90;
      background: var(--blue);
      border-bottom: 1px solid rgba(201,168,76,.2);
      box-shadow: 0 4px 24px rgba(0,0,0,.2);
    }
    .tabs-inner {
      max-width: 1280px; margin: 0 auto; padding: 0 24px;
      display: flex; gap: 0; overflow-x: auto;
      scrollbar-width: none;
    }
    .tabs-inner::-webkit-scrollbar { display: none; }
    .tab-btn {
      position: relative; padding: 18px 28px;
      font-size: .88rem; font-weight: 600; letter-spacing: .01em;
      color: rgba(255,255,255,.5); background: none; border: none;
      cursor: pointer; white-space: nowrap;
      transition: all .25s; display: flex; align-items: center; gap: 8px;
      font-family: 'DM Sans', sans-serif;
    }
    .tab-btn::after {
      content: ''; position: absolute; bottom: 0; left: 0; right: 0;
      height: 3px; border-radius: 3px 3px 0 0;
      background: var(--gold); transform: scaleX(0);
      transition: transform .3s cubic-bezier(.4,0,.2,1);
    }
    .tab-btn:hover { color: rgba(255,255,255,.9); background: rgba(255,255,255,.07); }
    .tab-btn.active { color: #fff; }
    .tab-btn.active::after { transform: scaleX(1); }
    .tab-icon { font-size: 1rem; }
    .tab-count {
      background: rgba(255,255,255,.12); color: rgba(255,255,255,.7);
      font-size: .7rem; font-weight: 700; padding: 2px 7px;
      border-radius: 10px; transition: all .25s;
    }
    .tab-btn.active .tab-count { background: var(--gold); color: var(--dark); }
 
    /* ===================== CONTENT SECTIONS ===================== */
    .tab-content { display: none; }
    .tab-content.active { display: block; }
    .section-pad { padding: 80px 24px; }
    .content-inner { max-width: 1280px; margin: 0 auto; }
 
    /* section header */
    .section-header { margin-bottom: 56px; }
    .section-kicker {
      display: inline-flex; align-items: center; gap: 10px;
      font-size: .75rem; font-weight: 700; letter-spacing: .12em;
      text-transform: uppercase; color: var(--gold); margin-bottom: 12px;
    }
    .section-kicker::before { content: ''; width: 28px; height: 2px; background: var(--gold); border-radius: 2px; }
    .section-title {
      font-size: clamp(2rem, 4vw, 3rem); font-weight: 700;
      color: var(--blue); line-height: 1.15; margin-bottom: 16px;
    }
    .section-desc { color: var(--text-muted); font-size: 1rem; line-height: 1.75; max-width: 600px; }
 
    /* grid layouts */
    .two-col { display: grid; grid-template-columns: 1fr 1fr; gap: 64px; align-items: start; }
    .three-col { display: grid; grid-template-columns: repeat(3,1fr); gap: 24px; }
    .two-col-cards { display: grid; grid-template-columns: 1fr 1fr; gap: 24px; }
 
    /* level cards */
    .level-card {
      background: var(--blue-light); border-radius: var(--radius);
      padding: 20px 22px; position: relative; overflow: hidden;
    }
    .level-card::before {
      content: ''; position: absolute; top: 0; left: 0;
      width: 4px; height: 100%; background: var(--blue);
      border-radius: 4px 0 0 4px;
    }
    .level-card.gold-card { background: var(--gold-light); }
    .level-card.gold-card::before { background: var(--gold); }
    .level-card-title { font-weight: 700; color: var(--blue); margin-bottom: 4px; font-size: .95rem; }
    .level-card-sub { font-size: .82rem; color: var(--text-muted); margin-bottom: 10px; }
    .level-badge {
      display: inline-block; font-size: .72rem; font-weight: 700;
      padding: 3px 10px; border-radius: 20px;
      background: var(--gold); color: var(--dark);
    }
 
    /* info strips */
    .info-strip {
      display: flex; align-items: center; gap: 16px;
      padding: 16px 20px; border-radius: 14px;
      border: 1.5px solid var(--blue-light);
      background: #fff; transition: border-color .2s, box-shadow .2s;
    }
    .info-strip:hover { border-color: var(--blue-light); box-shadow: 0 4px 20px rgba(26,58,107,.08); }
    .info-icon {
      width: 44px; height: 44px; border-radius: 12px;
      background: var(--blue); display: flex; align-items: center;
      justify-content: center; font-size: 1.1rem; flex-shrink: 0;
    }
    .info-icon.gold-icon { background: var(--gold); }
    .info-label { font-weight: 600; font-size: .85rem; color: var(--blue); margin-bottom: 2px; }
    .info-value { font-size: .8rem; color: var(--text-muted); }
 
    /* matières subject grid */
    .subjects-grid { margin-top: 64px; }
    .subjects-title {
      font-family: 'Playfair Display', serif;
      font-size: 1.75rem; font-weight: 700; color: var(--blue);
      margin-bottom: 28px;
    }
    .subject-card {
      background: #fff; border: 1.5px solid rgba(26,58,107,.09);
      border-radius: 20px; padding: 28px;
      transition: transform .3s, box-shadow .3s, border-color .3s;
    }
    .subject-card:hover {
      transform: translateY(-5px);
      box-shadow: 0 20px 48px rgba(26,58,107,.12);
      border-color: rgba(26,58,107,.18);
    }
    .subject-card-head {
      display: flex; justify-content: space-between; align-items: center;
      margin-bottom: 20px; padding-bottom: 16px;
      border-bottom: 1px solid var(--blue-light);
    }
    .subject-card-title { font-weight: 700; color: var(--blue); font-size: 1rem; }
    .exam-badge {
      font-size: .72rem; font-weight: 700; padding: 4px 12px;
      border-radius: 20px; background: var(--gold-light); color: #7a5c00;
      border: 1px solid rgba(201,168,76,.3);
    }
    .tag-list { display: flex; flex-wrap: wrap; gap: 8px; }
    .tag {
      background: var(--blue-light); color: var(--blue);
      padding: 5px 13px; border-radius: 20px;
      font-size: .78rem; font-weight: 500;
      transition: background .2s, color .2s;
    }
    .subject-card:hover .tag { background: rgba(26,58,107,.12); }
 
    /* ===================== ANGLO specific ===================== */
    .anglo-section { background: var(--surface); }
 
    /* ===================== SOIR ===================== */
    .soir-section {
      background: linear-gradient(135deg, var(--dark) 0%, #1b3872 100%);
      position: relative; overflow: hidden;
    }
    .soir-section::before {
      content: ''; position: absolute; inset: 0;
      background-image: radial-gradient(circle at 85% 15%, rgba(201,168,76,.12) 0%, transparent 55%),
        radial-gradient(circle at 15% 85%, rgba(41,82,163,.25) 0%, transparent 55%);
      pointer-events: none;
    }
    .soir-content { position: relative; z-index: 1; }
    .soir-cards { display: grid; grid-template-columns: repeat(3,1fr); gap: 24px; margin-bottom: 56px; }
    .soir-card {
      background: rgba(255,255,255,.08);
      border: 1px solid rgba(255,255,255,.12);
      border-radius: 20px; padding: 28px;
      -webkit-backdrop-filter: blur(12px);
      backdrop-filter: blur(12px);
      transition: background .3s, transform .3s;
    }
    .soir-card:hover { background: rgba(255,255,255,.13); transform: translateY(-4px); }
    .soir-card-icon { font-size: 2rem; margin-bottom: 16px; }
    .soir-card-title { font-size: 1.1rem; font-weight: 700; color: #fff; margin-bottom: 12px; }
    .soir-card-item { font-size: .85rem; color: rgba(255,255,255,.65); padding: 6px 0; display: flex; align-items: flex-start; gap: 8px; line-height: 1.5; }
    .soir-cta-box {
      max-width: 680px; margin: 0 auto;
      background: rgba(255,255,255,.08);
      border: 1px solid rgba(255,255,255,.15);
      border-radius: 24px; padding: 56px 48px;
      text-align: center; -webkit-backdrop-filter: blur(12px); backdrop-filter: blur(12px);
    }
    .soir-cta-title { font-size: clamp(1.6rem, 3vw, 2.2rem); font-weight: 700; color: #fff; margin-bottom: 12px; }
    .soir-cta-desc { color: rgba(255,255,255,.55); font-size: .95rem; margin-bottom: 32px; line-height: 1.7; }
    .btn-row { display: flex; gap: 12px; justify-content: center; flex-wrap: wrap; }
    .btn-gold {
      background: var(--gold); color: var(--dark);
      padding: 13px 28px; border-radius: 12px;
      font-weight: 700; font-size: .9rem; text-decoration: none;
      transition: all .25s; box-shadow: 0 6px 24px rgba(201,168,76,.35);
    }
    .btn-gold:hover { background: var(--gold-warm); transform: translateY(-2px); box-shadow: 0 10px 32px rgba(201,168,76,.45); }
    .btn-outline-white {
      border: 1.5px solid rgba(255,255,255,.3); color: #fff;
      padding: 13px 28px; border-radius: 12px;
      font-weight: 600; font-size: .9rem; text-decoration: none;
      transition: all .25s;
    }
    .btn-outline-white:hover { background: rgba(255,255,255,.1); border-color: rgba(255,255,255,.5); }
 
    /* ===================== FOOTER ===================== */
    footer {
      background: var(--dark);
      padding: 64px 24px 32px;
    }
    .footer-inner { max-width: 1280px; margin: 0 auto; }
    .footer-grid { display: grid; grid-template-columns: 2fr 1fr 1fr 1fr; gap: 48px; margin-bottom: 48px; }
    .footer-brand-name {
      font-family: 'Playfair Display', serif;
      font-size: 1.5rem; font-weight: 700; color: #fff;
      letter-spacing: .04em; margin-bottom: 10px;
    }
    .footer-brand-desc { font-size: .85rem; color: rgba(255,255,255,.35); line-height: 1.7; }
    .footer-col-title { font-size: .75rem; font-weight: 700; letter-spacing: .1em; text-transform: uppercase; color: var(--gold); margin-bottom: 18px; }
    .footer-link {
      display: block; font-size: .85rem; color: rgba(255,255,255,.45);
      text-decoration: none; padding: 5px 0; transition: color .2s;
    }
    .footer-link:hover { color: rgba(255,255,255,.85); }
    .footer-info { font-size: .85rem; color: rgba(255,255,255,.45); padding: 5px 0; line-height: 1.6; }
    .footer-divider { border: none; border-top: 1px solid rgba(255,255,255,.08); margin-bottom: 24px; }
    .footer-copy { font-size: .78rem; color: rgba(255,255,255,.25); text-align: center; }
 
    /* ===================== ANIMATIONS ===================== */
    .fade-up { opacity: 0; transform: translateY(28px); transition: opacity .7s ease, transform .7s ease; }
    .fade-up.visible { opacity: 1; transform: translateY(0); }
    .fade-up-delay-1 { transition-delay: .1s; }
    .fade-up-delay-2 { transition-delay: .2s; }
    .fade-up-delay-3 { transition-delay: .3s; }
 
    /* ===================== RESPONSIVE ===================== */
    @media(max-width: 1024px) {
      .two-col { grid-template-columns: 1fr; gap: 32px; }
      .three-col { grid-template-columns: 1fr 1fr; }
      .soir-cards { grid-template-columns: 1fr 1fr; }
      .footer-grid { grid-template-columns: 1fr 1fr; gap: 32px; }
    }
    @media(max-width: 768px) {
      .nav-links, .nav-cta { display: none; }
      .hamburger { display: flex; }
      .three-col, .two-col-cards, .soir-cards { grid-template-columns: 1fr; }
      .soir-cta-box { padding: 36px 24px; }
      .footer-grid { grid-template-columns: 1fr 1fr; }
      .tab-btn { padding: 16px 18px; font-size: .82rem; }
    }
    @media(max-width: 480px) {
      .footer-grid { grid-template-columns: 1fr; }
      .topbar { flex-direction: column; gap: 6px; text-align: center; }
    }