/* ============================================================
   PROJET PADEL — DESIGN SYSTEM (LIGHT / BASE)
   Version: Master 2026
   Primary: White | Secondary: #C0C943 (Lime) | Accent: #6D3EF4 (Violet)
============================================================ */

/* ------------------------------------------------------------
   0. CASCADE LAYERS
------------------------------------------------------------ */
@layer tokens, reset, base, layout, components, utilities, responsive, overrides;

/* ============================================================
   1. TOKENS (Variables Globales)
============================================================ */
@layer tokens {
  :root {
    /* Palette */
    --lime: #C0C943;
    --lime-hover: #a8b035;
    --lime-soft: rgba(192, 201, 67, 0.12);

    --violet: #6D3EF4;
    --violet-hover: #5a2ed8;
    --violet-soft: rgba(109, 62, 244, 0.12);

    --dark: #121212;
    --gray: #64748b;
    --gray-light: #f1f5f9;
    --light-bg: #f8fafc;
    --white: #ffffff;

    /* Semantic Colors (Base Light) */
    --surface: var(--white);
    --surface-2: var(--light-bg);
    --border: var(--gray-light);
    --text: var(--dark);
    --text-2: var(--gray);

    /* Dimensions & Effects */
    --radius: 24px;
    --radius-md: 18px;
    --radius-sm: 12px;
    --container: 1240px;

    --shadow: 0 10px 30px -5px rgba(0, 0, 0, 0.05);
    --shadow-hover: 0 25px 50px -12px rgba(0, 0, 0, 0.1);
    --shadow-soft: 0 10px 30px -10px rgba(0,0,0,.10);
    --shadow-strong: 0 30px 70px -20px rgba(0,0,0,.25);

    --transition: all 0.4s cubic-bezier(0.16, 1, 0.3, 1);
    --ring: 0 0 0 4px rgba(109, 62, 244, 0.22);
  }
}

/* ============================================================
   2. RESET & GLOBAL
============================================================ */
@layer reset {
  * { margin:0; padding:0; box-sizing:border-box; }
  html { scroll-behavior:smooth; }

  body {
    font-family: 'Plus Jakarta Sans', system-ui, sans-serif;
    color: var(--text);
    line-height: 1.6;
    background: var(--surface);
    overflow-x: hidden;
    padding-top: 80px;
    -webkit-font-smoothing: antialiased;
  }

  img { max-width:100%; height:auto; display:block; }
  a { color:inherit; text-decoration:none; transition:var(--transition); }
  button, input, select { font-family:inherit; }

  /* Focus Accessibility */
  :where(a, button, summary, input, [tabindex]):focus-visible {
    outline: none;
    box-shadow: var(--ring);
    border-radius: 8px;
  }
}

/* ============================================================
   3. TYPOGRAPHY & ELEMENTS
============================================================ */
@layer base {
  h1, h2, h3, h4 { margin-top:0; margin-bottom:15px; }
  h1 { font-size: clamp(2.5rem, 5vw, 4rem); line-height:1.1; font-weight:800; letter-spacing:-0.03em; }
  h2 { font-size: clamp(2rem, 4vw, 3rem); line-height:1.2; font-weight:800; margin-bottom:20px; letter-spacing:-0.02em; }
  h3 { font-size: 1.5rem; font-weight:800; letter-spacing:-0.01em; margin-bottom:10px; }

  p { margin-bottom:15px; }

  .section-header { text-align:center; margin-bottom:60px; }
  .section-header h2 { margin-bottom:10px; }
  .section-desc { color:var(--text-2); max-width:650px; margin:0 auto 20px; font-size:1.1rem; }
  .small-text { font-size:0.85rem; color:var(--text-2); }

  /* Badges */
  .badge { background:var(--lime-soft); color:#8d9426; padding:8px 20px; border-radius:100px; font-weight:800; font-size:0.75rem; text-transform:uppercase; letter-spacing:0.05em; display:inline-block; margin-bottom:20px; }
  .badge-violet { background:var(--violet-soft); color:var(--violet); padding:8px 20px; border-radius:100px; font-weight:900; font-size:0.75rem; text-transform:uppercase; letter-spacing:0.05em; display:inline-block; margin-bottom:15px; }
}

/* ============================================================
   4. LAYOUT & STRUCTURE
============================================================ */
@layer layout {
  .container { max-width:var(--container); margin:0 auto; padding:0 30px; }
  
  .section-padding { padding:120px 0; position:relative; overflow:hidden; z-index:1; }
  .hero-split { overflow:visible; }

  /* Grids */
  .grid { display:grid; gap:30px; align-items:start; }
  .grid-2 { grid-template-columns:repeat(2, 1fr); }
  .grid-3 { grid-template-columns:repeat(3, 1fr); }
  .grid-4 { grid-template-columns:repeat(4, 1fr); }

  .docs-grid { display:grid; grid-template-columns:repeat(3, 1fr); gap:24px; margin-top:40px; align-items:stretch; }
  .longform { display:grid; grid-template-columns:1fr 320px; gap:40px; align-items:start; }
}

/* ============================================================
   5. COMPONENTS UI
============================================================ */
@layer components {

  /* --- Header & Nav --- */
  .main-header { 
    position:fixed; 
    top:0; 
    width:100%; 
    z-index:1000; 
    background:rgba(255,255,255,0.9); 
    backdrop-filter:blur(12px); 
    border-bottom:1px solid var(--border); 
    padding:15px 0; 
    transition:var(--transition); 
  }
  
  .header-flex { display:flex; align-items:center; justify-content:space-between; }
  .logo { font-size:1.4rem; font-weight:800; color:var(--text); letter-spacing:-1px; }
  .logo span { color:var(--lime); }
  .nav-menu { display:flex; gap:30px; }
  .nav-menu a { color:var(--text-2); font-weight:600; font-size:0.95rem; }
  .nav-menu a:hover { color:var(--lime); }
  
  .nav-menu a.active { color:var(--lime); position:relative; }
  .nav-menu a.active::after { content:""; position:absolute; bottom:-5px; left:0; width:100%; height:2px; background:var(--lime); border-radius:2px; }

  /* --- Buttons --- */
  .btn-main, .btn-card, .btn-outline, .btn-main-sm { 
    display:inline-flex; 
    align-items:center; 
    justify-content:center; 
    font-weight:700; 
    border:none; 
    cursor:pointer; 
    transition:var(--transition); 
  }

  .btn-main { background:var(--lime); color:#000; padding:16px 36px; border-radius:100px; font-size:1rem; }
  .btn-main:hover { transform:translateY(-3px); box-shadow:0 15px 30px rgba(192,201,67,0.4); background:var(--lime-hover); }

  .btn-card { background:var(--dark); color:#fff; width:100%; padding:16px 36px; border-radius:100px; font-size:1rem; margin:20px 0 0; }
  .btn-card:hover { transform:translateY(-2px); box-shadow:var(--shadow-hover); }

  .btn-main-sm { background:var(--dark); color:#fff; padding:10px 22px; border-radius:50px; font-size:0.85rem; }
  .btn-main-sm:hover { transform:translateY(-2px); box-shadow:0 10px 20px rgba(0,0,0,0.15); }

  .btn-outline { color:var(--dark); border-bottom:2px solid var(--lime); padding-bottom:2px; font-size:1rem; }
  .btn-outline:hover { color:var(--violet); border-bottom-color:var(--violet); }

  .section-header .btn-main, .section-header .btn-outline, .section-header .btn-main-sm { margin-top:20px; }
  .hero-content .btn-main, .hero-content .btn-outline { margin-top:20px; }
  .card .btn-main, .card .btn-outline { margin-top:15px; }

  /* --- Hero Section --- */
  .hero-split { padding:100px 0 80px; position:relative; }
  .flex-hero { display:flex; align-items:center; gap:80px; }
  .hero-content { flex:1.2; }
  .hero-visual { flex:1; position:relative; }

  .hero-img { 
    border-radius:var(--radius); 
    box-shadow:var(--shadow-strong); 
    animation:float 6s infinite ease-in-out; 
    transition:transform 0.6s cubic-bezier(0.25, 1, 0.5, 1), box-shadow 0.6s ease;
  }
  
  @keyframes float { 
    0%,100% { transform:translateY(0); } 
    50% { transform:translateY(-20px); } 
  }

  .bg-architect { position:relative; background:var(--surface); }
  .bg-architect::before { 
    content:""; position:absolute; inset:0; 
    background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='100' height='100' viewBox='0 0 100 100'%3E%3Cpath d='M96 95h4v1h-4v4h-1v-4h-9v4h-1v-4h-9v4h-1v-4h-9v4h-1v-4h-9v4h-1v-4h-9v4h-1v-4h-9v4h-1v-4h-9v4h-1v-4H0v-1h15v-9H0v-1h15v-9H0v-1h15v-9H0v-1h15v-9H0v-1h15v-9H0v-1h15v-9H0v-1h15v-9H0v-1h15v-9H0v-1h15V0h1v15h9V0h1v15h9V0h1v15h9V0h1v15h9V0h1v15h9V0h1v15h9V0h1v15h9V0h1v15h9V0h1v15h9V0h1v15h9V0h1v15h4v1z' fill='%23C0C943' fill-opacity='0.05'/%3E%3C/svg%3E"); 
    opacity:0.5; pointer-events:none; 
  }

  /* --- Cards --- */
  .card { 
    background:var(--surface); padding:40px; border-radius:var(--radius); border:1px solid var(--border); 
    transition:var(--transition); height:100%; display:flex; flex-direction:column; box-shadow:var(--shadow-soft); 
  }
  .card:hover { transform:translateY(-8px); border-color:var(--lime); box-shadow:var(--shadow-hover); }

  .feature-list-modern { list-style:none; margin:20px 0; padding:0; }
  .feature-list-modern li { position:relative; padding-left:35px; margin-bottom:12px; font-weight:600; color:var(--text); display:flex; align-items:center; }
  .feature-list-modern li::before { 
    content:""; position:absolute; left:0; width:22px; height:22px; background-color:var(--lime-soft); 
    background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%238d9426' stroke-width='3' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='20 6 9 17 4 12'%3E%3C/polyline%3E%3C/svg%3E"); 
    background-size:14px; background-repeat:no-repeat; background-position:center; border-radius:50%; 
  }

  /* --- Doc Cards --- */
  .doc-card { 
    background:var(--surface); border:2px solid var(--border); border-radius:var(--radius); padding:40px 30px; 
    text-align:center; transition:var(--transition); display:flex; flex-direction:column; height:100%; position:relative; box-shadow:var(--shadow-soft); overflow:visible; 
  }
  .doc-card:hover { transform:translateY(-8px); border-color:var(--lime); box-shadow:var(--shadow-strong); }
  .doc-card h3 { font-size:1.4rem; margin-bottom:12px; }
  .doc-card .doc-desc { color:var(--text-2); line-height:1.7; flex:1; margin-bottom:20px; }
  .doc-icon { font-size:3.5rem; margin-bottom:20px; display:block; }

  .doc-card img { transition: transform 0.6s cubic-bezier(0.25, 1, 0.5, 1), box-shadow 0.6s ease; border-radius:12px; }

  .doc-card.is-bonus { border-color:var(--violet); background:linear-gradient(135deg, rgba(109,62,244,0.04), rgba(139,92,246,0.04)); }
  
  .bonus-badge { 
    display:inline-flex; align-items:center; gap:8px; background:var(--violet); color:#fff; padding:8px 16px; border-radius:99px; 
    font-weight:800; font-size:0.75rem; text-transform:uppercase; position:absolute; top:-12px; left:50%; transform:translateX(-50%); 
    box-shadow:0 10px 20px rgba(109,62,244,0.4); animation:pulse 2s infinite; z-index:10;
  }
  @keyframes pulse { 
    0%,100% { transform:translateX(-50%) scale(1); } 
    50% { transform:translateX(-50%) scale(1.05); } 
  }

  /* --- Video Player --- */
  .video-container-fix { 
    position:relative; width:100%; max-width:1200px; margin:0 auto; border-radius:var(--radius); overflow:hidden; 
    box-shadow:var(--shadow-strong); background:#000; aspect-ratio:16/10; 
  }
  .video-container-fix iframe { position:absolute; top:0; left:0; width:100%; height:100%; border:none; }

  .video-wrapper { position: relative; width: 100%; padding-bottom: 56.25%; background: #000; border-radius: 12px; overflow: hidden; cursor: pointer; }
  .video-wrapper-full { max-width: 1100px; margin: 0 auto; }
  .video-cover { 
    position: absolute; top: 0; left: 0; width: 100%; height: 100%; background-size: cover; background-position: center; 
    z-index: 2; display: flex; align-items: center; justify-content: center; transition: opacity 0.3s; 
  }
  .video-iframe-container { position:absolute; top:0; left:0; width:100%; height:100%; z-index:1; }

  /* --- Marquee --- */
  .marquee-container { 
    background:var(--surface); padding:50px 0; overflow:hidden; position:relative; border-top:1px solid var(--border); border-bottom:1px solid var(--border); 
  }
  .marquee-content { display:flex; width:max-content; animation:scroll 30s linear infinite; }
  .marquee-content:hover { animation-play-state:paused; }
  @keyframes scroll { 0% { transform:translateX(0); } 100% { transform:translateX(-33.33%); } }

  .stat-card-marquee { 
    flex:0 0 280px; background:var(--surface); padding:25px; border-radius:18px; border:1px solid var(--border); margin-right:30px; 
    text-align:center; display:flex; flex-direction:column; justify-content:center; 
  }
  .stat-value { font-size:2.2rem; font-weight:800; color:var(--text); }

  .marquee-container::before, .marquee-container::after { 
    content:""; position:absolute; top:0; bottom:0; width:100px; pointer-events:none; z-index:2; 
  }
  .marquee-container::before { left:0; background:linear-gradient(90deg, var(--surface), transparent); }
  .marquee-container::after { right:0; background:linear-gradient(270deg, var(--surface), transparent); }

  /* --- Steps Slider --- */
  .steps-slider { position:relative; border-radius:var(--radius); overflow:hidden; box-shadow:var(--shadow-strong); background:var(--surface); border:1px solid var(--border); }
  .steps-track { display:flex; transition:transform 0.6s cubic-bezier(0.25, 1, 0.5, 1); }
  .step-slide { min-width:100%; display:grid; grid-template-columns:1fr 1fr; align-items:stretch; }
  .step-content { padding:60px 50px; display:flex; flex-direction:column; justify-content:center; align-items:flex-start; }
  .step-number { font-size:4rem; font-weight:900; color:var(--lime-soft); line-height:1; margin-bottom:20px; -webkit-text-stroke:2px var(--lime); }
  .step-image { position:relative; height:100%; min-height:400px; }
  .step-image img { position:absolute; inset:0; width:100%; height:100%; object-fit:cover; transition:transform 0.8s ease; }
  .step-slide:hover .step-image img { transform:scale(1.05); }

  .step-nav { display:flex; justify-content:center; gap:20px; margin-bottom:25px; }
  .step-pill { display:flex; align-items:center; gap:6px; padding:6px 12px; border-radius:999px; font-size:0.85rem; border:1px solid #333; color:#777; text-decoration:none; }
  .step-pill-active { border-color:var(--lime); background:var(--dark); color:#fff; }
  .step-pill span.step-index { width:18px; height:18px; border-radius:50%; border:1px solid currentColor; display:flex; align-items:center; justify-content:center; font-size:0.75rem; }

  /* --- Gallery --- */
  .gallery-img { transition: transform 0.6s cubic-bezier(0.25, 1, 0.5, 1), box-shadow 0.6s ease; display:block; width:100%; height:100%; object-fit:cover; }
  .gallery-grid { display:grid; grid-template-columns:repeat(auto-fit, minmax(220px, 1fr)); gap:15px; }
  .gallery-grid .gallery-item { border-radius:var(--radius); overflow:hidden; background:var(--dark); }
  .gallery-masonry { column-count:3; column-gap:15px; }
  .gallery-masonry .gallery-item { break-inside:avoid; margin-bottom:15px; border-radius:var(--radius); overflow:hidden; }

  /* --- Article Premium (Longform) --- */
  .longform__content h1 { margin-bottom:25px; }
  .longform__content h2 { margin-top:50px; margin-bottom:25px; font-size:1.8rem; color:var(--text); border-left:4px solid var(--violet); padding-left:20px; line-height:1.3; }
  .longform__content h3 { margin-top:35px; margin-bottom:15px; font-size:1.3rem; color:var(--text); }
  .longform__content p { margin-bottom:20px; font-size:1.05rem; color:var(--text-2); line-height:1.8; }
  .longform__content ul { list-style:none; padding:0; margin-bottom:30px; }
  .longform__content ul li { position:relative; padding-left:30px; margin-bottom:12px; line-height:1.6; }
  .longform__content ul li::before { content:"✔"; position:absolute; left:0; color:var(--lime); font-weight:bold; }

  .longform__toc { position:sticky; top:110px; background:var(--surface); border:1px solid var(--border); padding:25px; border-radius:var(--radius); box-shadow:var(--shadow-soft); }
  .longform__toc a { display:block; padding:8px 0; color:var(--text-2); border-bottom:1px solid var(--border); font-size:0.95rem; }
  .longform__toc a:hover { color:var(--lime); padding-left:5px; }

  .article-cta-box { background:var(--dark); color:#fff; padding:40px; border-radius:12px; text-align:center; margin-top:60px; border:1px solid #333; box-shadow:var(--shadow-strong); }
  .cta-clean { text-align:center; padding:60px 30px; background:linear-gradient(135deg, rgba(192,201,67,0.08) 0%, rgba(109,62,244,0.08) 100%); border-radius:var(--radius); border:1px solid var(--border); margin-top:50px; }

  /* --- Testimonials & FAQ --- */
  .testimonials { display:grid; grid-template-columns:repeat(3, 1fr); gap:22px; }
  .testimonial-card { background:var(--surface); border:1px solid var(--border); border-radius:var(--radius); padding:28px; box-shadow:var(--shadow-soft); display:flex; flex-direction:column; gap:16px; }
  .testimonial-stars { color:#fbbf24; font-size:1.2rem; }
  .testimonial-author { display:flex; align-items:center; gap:12px; font-weight:700; }
  .testimonial-avatar { width:48px; height:48px; border-radius:99px; background:var(--surface-2); transition: transform 0.25s ease; }
  .testimonial-avatar:hover { transform: scale(1.1); }

  .faq-container { max-width:850px; margin:0 auto; }
  .faq-pro details { background:var(--surface); border-radius:18px; margin-bottom:15px; border:1px solid var(--border); overflow:hidden; }
  .faq-pro summary { display:flex; align-items:center; justify-content:space-between; padding:20px; font-weight:800; cursor:pointer; list-style:none; font-size:1.05rem; }
  .faq-pro summary::-webkit-details-marker { display:none; }
  .faq-pro summary .chev { width:32px; height:32px; border-radius:50%; background:var(--surface-2); display:flex; align-items:center; justify-content:center; transition:var(--transition); }
  .faq-pro details[open] summary .chev { transform:rotate(180deg); background:var(--violet-soft); color:var(--violet); }
  .faq-pro .a { padding:0 20px 25px; color:var(--text-2); line-height:1.7; }

  /* --- Footer & Popups --- */
  .main-footer { background:var(--dark); color:var(--white); padding:80px 0 30px; margin-top:0; }
  .footer-grid { display:grid; grid-template-columns:1.5fr repeat(3, 1fr); gap:40px; border-bottom:1px solid #333; padding-bottom:60px; margin-bottom:30px; }
  .footer-links a { display:block; color:#888; margin-bottom:10px; transition:var(--transition); }
  .footer-links a:hover { color:var(--lime); transform:translateX(5px); }

  .webinar-popup { 
    position: fixed; top: 100px; right: 30px; max-width: 380px; background:#fff; color:#000; 
    padding:25px; border-radius:var(--radius); box-shadow:0 20px 60px rgba(0,0,0,0.3); display:none; 
    gap:15px; z-index:9999; border:2px solid var(--lime); animation: slideInRight 0.5s ease;
  }
  @keyframes slideInRight { from { transform: translateX(500px); opacity:0; } to { transform: translateX(0); opacity:1; } }
  
  .webinar-popup.visible { display:block; }
  .webinar-popup.hidden { display:none; }
  
  .webinar-popup-info { flex:1; }
  .webinar-popup-title { font-size:1.1rem; font-weight:800; margin-bottom:8px; display:flex; align-items:center; gap:8px; }
  .webinar-popup-timer { font-size:1rem; color:var(--violet); margin-bottom:15px; font-weight:700; }
  .webinar-popup-close { 
    position:absolute; top:15px; right:15px; background:none; border:none; color:#888; cursor:pointer; font-size:1.5rem;
    width:30px; height:30px; display:flex; align-items:center; justify-content:center; border-radius:50%; transition:var(--transition);
  }
  .webinar-popup-close:hover { background:var(--gray-light); color:var(--dark); }

  #dark-mode-toggle { 
    position:fixed; bottom:30px; right:30px; z-index:1000; background:var(--lime); width:50px; height:50px; 
    border-radius:50%; border:none; cursor:pointer; box-shadow:0 10px 20px rgba(0,0,0,0.3); transition:var(--transition); 
  }
  #dark-mode-toggle:hover { transform:scale(1.1); }
}


/* ============================================================
   6. UTILITIES
============================================================ */
@layer utilities {
  .bg-light { background:var(--light-bg); }
  .bg-white { background:var(--white); }
  .text-center { text-align:center; }
  .text-left { text-align:left; }
}


/* ============================================================
   7. RESPONSIVE
============================================================ */
@layer responsive {
  @media (max-width: 1024px) {
    .flex-hero { flex-direction:column; text-align:center; }
    .hero-visual { width:100%; margin-top:40px; }
    .docs-grid, .grid-3 { grid-template-columns:1fr; }
    .step-slide { grid-template-columns:1fr; }
    .step-image { height:300px; order:-1; min-height:auto; }
    .step-content { padding:40px 30px; }
    .video-container-fix { aspect-ratio:16/9; }
    .longform { grid-template-columns:1fr; }
    .longform__toc { display:none; }
    .nav-menu { display:none; }
    .footer-grid { grid-template-columns:1fr; text-align:center; }
    .testimonial-card { margin-bottom:20px; }
    .gallery-masonry { column-count:1; }
    .webinar-popup { top:auto; bottom:20px; right:20px; left:20px; max-width:100%; }
  }

  @media (max-width: 900px) { .gallery-masonry { column-count:2; } }
  @media (max-width: 600px) { .gallery-masonry { column-count:1; } }
}


/* ============================================================
   8. PREMIUM COMPONENT OVERRIDES
============================================================ */
@layer overrides {
  /* Step Navigation Premium */
  .step-nav {
    display: inline-flex; background: rgba(255, 255, 255, 0.8); backdrop-filter: blur(10px);
    padding: 8px; border-radius: 100px; border: 1px solid rgba(0,0,0,0.08); box-shadow: 0 10px 30px rgba(0,0,0,0.05); gap: 10px;
  }
  .step-pill {
    position: relative; display: flex; align-items: center; gap: 10px; padding: 10px 24px;
    border-radius: 50px; font-size: 0.9rem; font-weight: 700; color: var(--text-2);
    background: transparent; border: none; overflow: hidden; transition: all 0.3s ease;
  }
  .step-pill span.step-index {
    width: 24px; height: 24px; background: #e2e8f0; color: #64748b; border-radius: 50%;
    border: none; font-size: 0.75rem; font-weight: 800; transition: all 0.3s ease;
  }
  .step-pill-active { background: var(--dark); color: #fff; box-shadow: 0 5px 15px rgba(0,0,0,0.2); }
  .step-pill-active span.step-index { background: var(--lime); color: #000; }

  .step-pill::after {
    content: "→"; position: absolute; right: 15px; opacity: 0; transform: translateX(-10px);
    transition: all 0.3s cubic-bezier(0.175, 0.885, 0.32, 1.275); color: var(--lime); font-weight: 800;
  }
  .step-pill:not(.step-pill-active):hover { background: #f1f5f9; color: var(--dark); padding-right: 40px; }
  .step-pill:not(.step-pill-active):hover::after { opacity: 1; transform: translateX(0); }

  /* Images Premium (Hover Effects) */
  .hero-visual, .gallery-item, .doc-card { position: relative; overflow: visible; }
  .hero-img, .gallery-img, .doc-card img { transition: transform 0.6s cubic-bezier(0.25, 1, 0.5, 1), box-shadow 0.6s ease; width: 100%; display: block; border-radius: var(--radius); }

  .hero-visual:hover .hero-img, .gallery-item:hover .gallery-img, .doc-card:hover img {
    transform: scale(1.05); box-shadow: 0 30px 60px rgba(0,0,0,0.20);
  }
}

/* ============================================================
   9. BLOG & SIDEBAR LAYOUT
============================================================ */
.article-container { display: flex; gap: 50px; position: relative; padding-top: 40px; }
.article-sidebar { width: 300px; flex-shrink: 0; position: sticky; top: 100px; height: fit-content; display: none; }
.article-content { flex: 1; min-width: 0; }

.toc-box { background: var(--white); padding: 25px; border-radius: var(--radius); border: 1px solid var(--border); box-shadow: var(--shadow-soft); }
.toc-title { font-weight: 700; margin-bottom: 15px; font-size: 1.1rem; color: var(--dark); display: block; }
.toc-list { list-style: none; padding: 0; margin: 0; }
.toc-list li { margin-bottom: 0; }

.toc-link { display: block; padding: 8px 0 8px 15px; color: var(--text-2); text-decoration: none; font-size: 0.95rem; border-left: 3px solid var(--border); transition: all 0.2s ease; }
.toc-link:hover { color: var(--lime-hover); border-left-color: var(--lime-hover); background: linear-gradient(90deg, #f9f9f9, transparent); padding-left: 20px; }

@media (min-width: 992px) { .article-sidebar { display: block; } }
@media (max-width: 991px) {
  .article-container { flex-direction: column; }
  .article-sidebar { width: 100%; position: relative; top: 0; margin-bottom: 40px; display: block; }
}