/* ========== RESET & BASE ========== */
      *, *::before, *::after {
        margin: 0;
        padding: 0;
        box-sizing: border-box;
      }

      :root {
        --bg-primary: #06060c;
        --bg-secondary: #0c0c16;
        --bg-surface: #111120;
        --bg-card: #16162a;
        --bg-card-hover: #1c1c38;
        --yellow-bright: #f5c518;
        --yellow-light: #ffe066;
        --yellow-dark: #c49a00;
        --yellow-glow: rgba(245, 197, 24, 0.25);
        --yellow-glow-strong: rgba(245, 197, 24, 0.5);
        --text-primary: #eaeaea;
        --text-secondary: #9a9ab0;
        --text-muted: #5a5a72;
        --border-color: rgba(245, 197, 24, 0.12);
        --border-glow: rgba(245, 197, 24, 0.3);
        --glass-bg: rgba(12, 12, 22, 0.7);
        --glass-border: rgba(245, 197, 24, 0.08);
        --transition-smooth: all 0.4s cubic-bezier(0.25, 0.46, 0.45, 0.94);
        --font-display: 'Orbitron', sans-serif;
        --font-body: 'Roboto', sans-serif;
      }

      html {
        scroll-behavior: smooth;
      }

      body {
        font-family: var(--font-body);
        background: var(--bg-primary);
        color: var(--text-primary);
        overflow-x: hidden;
        line-height: 1.7;
      }

      .container {
        max-width: 1200px;
        margin: 0 auto;
        padding: 0 20px;
      }

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

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

      ul {
        list-style: none;
      }

      /* ========== ANIMATED BACKGROUND ========== */
      body::before {
        content: '';
        position: fixed;
        top: 0; left: 0;
        width: 100%; height: 100%;
        background:
          radial-gradient(ellipse 600px 400px at 20% 20%, rgba(245, 197, 24, 0.04) 0%, transparent 70%),
          radial-gradient(ellipse 500px 500px at 80% 60%, rgba(245, 197, 24, 0.03) 0%, transparent 70%),
          radial-gradient(ellipse 800px 300px at 50% 90%, rgba(196, 154, 0, 0.03) 0%, transparent 70%);
        pointer-events: none;
        z-index: 0;
        animation: bgPulse 8s ease-in-out infinite alternate;
      }

      @keyframes bgPulse {
        0% { opacity: 0.6; }
        100% { opacity: 1; }
      }

      /* Grid overlay */
      body::after {
        content: '';
        position: fixed;
        top: 0; left: 0;
        width: 100%; height: 100%;
        background-image:
          linear-gradient(rgba(245, 197, 24, 0.015) 1px, transparent 1px),
          linear-gradient(90deg, rgba(245, 197, 24, 0.015) 1px, transparent 1px);
        background-size: 60px 60px;
        pointer-events: none;
        z-index: 0;
      }

      /* ========== FLOWING PARTICLES ========== */
      .particles-container {
        position: fixed;
        top: 0; left: 0;
        width: 100%; height: 100%;
        pointer-events: none;
        z-index: 0;
        overflow: hidden;
      }

      .particle {
        position: absolute;
        width: 2px;
        height: 2px;
        background: var(--yellow-bright);
        border-radius: 50%;
        opacity: 0;
        animation: particleFloat linear infinite;
      }

      @keyframes particleFloat {
        0% {
          opacity: 0;
          transform: translateY(100vh) translateX(0) scale(0);
        }
        10% {
          opacity: 0.8;
          transform: translateY(90vh) translateX(10px) scale(1);
        }
        90% {
          opacity: 0.3;
        }
        100% {
          opacity: 0;
          transform: translateY(-10vh) translateX(-20px) scale(0.5);
        }
      }

      /* ========== HEADER TOP BAR ========== */
      header {
        position: relative;
        z-index: 1000;
      }

      .header-top {
        background: linear-gradient(135deg, #1a1700 0%, #2a2300 40%, #1a1700 100%);
        border-bottom: 1px solid var(--border-glow);
        padding: 8px 0;
        position: relative;
        overflow: hidden;
      }

      .header-top::before {
        content: '';
        position: absolute;
        top: 0; left: -100%;
        width: 200%; height: 100%;
        background: linear-gradient(90deg, transparent, rgba(245, 197, 24, 0.06), transparent);
        animation: headerSweep 4s ease-in-out infinite;
      }

      @keyframes headerSweep {
        0% { transform: translateX(-50%); }
        100% { transform: translateX(50%); }
      }

      .header-top-content {
        display: flex;
        justify-content: space-between;
        align-items: center;
        position: relative;
        z-index: 1;
      }

      .header-contact {
        display: flex;
        gap: 24px;
        flex-wrap: wrap;
      }

      .header-contact a {
        font-size: 0.8rem;
        color: var(--yellow-light);
        display: flex;
        align-items: center;
        gap: 8px;
        letter-spacing: 0.3px;
      }

      .header-contact a i {
        color: var(--yellow-bright);
        font-size: 0.75rem;
      }

      .header-contact a:hover {
        color: #fff;
        text-shadow: 0 0 10px var(--yellow-glow);
      }

      .header-social {
        display: flex;
        gap: 12px;
      }

      .header-social a {
        width: 28px;
        height: 28px;
        border-radius: 50%;
        border: 1px solid rgba(245, 197, 24, 0.2);
        display: flex;
        align-items: center;
        justify-content: center;
        font-size: 0.7rem;
        color: var(--yellow-bright);
        transition: var(--transition-smooth);
      }

      .header-social a:hover {
        background: var(--yellow-bright);
        color: var(--bg-primary);
        box-shadow: 0 0 15px var(--yellow-glow-strong);
      }

      /* ========== HEADER MAIN / NAV ========== */
      .header-main {
        background: rgba(6, 6, 12, 0.85);
        backdrop-filter: blur(20px);
        -webkit-backdrop-filter: blur(20px);
        border-bottom: 1px solid var(--glass-border);
        padding: 0;
        position: sticky;
        top: 0;
        z-index: 999;
        transition: var(--transition-smooth);
      }

      .header-main.scrolled {
        background: rgba(6, 6, 12, 0.95);
        box-shadow: 0 4px 30px rgba(0, 0, 0, 0.5), 0 0 40px rgba(245, 197, 24, 0.03);
      }

      .header-content {
        display: flex;
        align-items: center;
        justify-content: space-between;
        height: 72px;
      }

      .logo img {
        height: 52px;
        width: auto;
        filter: drop-shadow(0 0 8px rgba(245, 197, 24, 0.2));
        transition: var(--transition-smooth);
      }

      .logo:hover img {
        filter: drop-shadow(0 0 16px rgba(245, 197, 24, 0.4));
      }

      nav ul {
        display: flex;
        gap: 4px;
      }

      nav ul li a {
        padding: 8px 16px;
        font-size: 0.65rem;
        font-weight: 500;
        color: var(--text-secondary);
        border-radius: 6px;
        position: relative;
        letter-spacing: 0.5px;
        text-transform: uppercase;
        font-family: var(--font-display);
      }

      nav ul li a::after {
        content: '';
        position: absolute;
        bottom: 2px;
        left: 50%;
        transform: translateX(-50%);
        width: 0;
        height: 2px;
        background: linear-gradient(90deg, transparent, var(--yellow-bright), transparent);
        border-radius: 2px;
        transition: width 0.3s ease;
      }

      nav ul li a:hover,
      nav ul li a.active {
        color: var(--yellow-bright);
        background: rgba(245, 197, 24, 0.05);
      }

      nav ul li a:hover::after,
      nav ul li a.active::after {
        width: 60%;
      }

      .mobile-menu-btn {
        display: none;
        background: transparent;
        border: 1px solid var(--border-glow);
        color: var(--yellow-bright);
        width: 44px;
        height: 44px;
        border-radius: 8px;
        cursor: pointer;
        font-size: 1.1rem;
        transition: var(--transition-smooth);
      }

      .mobile-menu-btn:hover {
        background: rgba(245, 197, 24, 0.1);
        box-shadow: 0 0 20px var(--yellow-glow);
      }

      /* ========== BUTTONS ========== */
      .btn {
        display: inline-flex;
        align-items: center;
        gap: 8px;
        padding: 14px 36px;
        font-family: var(--font-display);
        font-size: 0.72rem;
        font-weight: 600;
        text-transform: uppercase;
        letter-spacing: 2px;
        border: none;
        border-radius: 4px;
        cursor: pointer;
        transition: var(--transition-smooth);
        position: relative;
        overflow: hidden;
        background: linear-gradient(135deg, var(--yellow-dark), var(--yellow-bright));
        color: #0a0a0f;
        box-shadow: 0 4px 20px var(--yellow-glow), inset 0 1px 0 rgba(255,255,255,0.2);
      }

      .btn::before {
        content: '';
        position: absolute;
        top: 0; left: -100%;
        width: 100%; height: 100%;
        background: linear-gradient(90deg, transparent, rgba(255,255,255,0.2), transparent);
        transition: left 0.5s ease;
      }

      .btn:hover {
        transform: translateY(-2px);
        box-shadow: 0 8px 35px var(--yellow-glow-strong), 0 0 60px rgba(245, 197, 24, 0.15), inset 0 1px 0 rgba(255,255,255,0.3);
      }

      .btn:hover::before {
        left: 100%;
      }

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

      /* ========== SECTION TITLE ========== */
      .section-title {
        text-align: center;
        margin-bottom: 60px;
        position: relative;
      }

      .section-title h2 {
        font-family: var(--font-display);
        font-size: 2rem;
        font-weight: 700;
        text-transform: uppercase;
        letter-spacing: 4px;
        color: var(--text-primary);
        position: relative;
        display: inline-block;
      }

      .section-title h2::after {
        content: '';
        display: block;
        width: 60px;
        height: 3px;
        background: linear-gradient(90deg, var(--yellow-dark), var(--yellow-bright), var(--yellow-light));
        margin: 16px auto 0;
        border-radius: 3px;
        box-shadow: 0 0 15px var(--yellow-glow);
      }

      .section-title::before {
        content: '';
        position: absolute;
        top: 50%;
        left: 0;
        width: 100%;
        height: 1px;
        background: linear-gradient(90deg, transparent, var(--border-color), transparent);
        z-index: -1;
      }

      .section-title p {
        color: var(--text-secondary);
        font-size: 0.95rem;
        margin-top: 14px;
        font-weight: 300;
        letter-spacing: 0.3px;
      }

      /* ========== PAGE SECTION ========== */
      .page-section {
        position: relative;
        z-index: 1;
        padding: 100px 0;
      }

      /* ========== PAGE BANNER ========== */
      .page-banner {
        position: relative;
        z-index: 1;
        padding: 80px 0 50px;
        text-align: center;
        overflow: hidden;
      }

      .page-banner::before {
        content: '';
        position: absolute;
        top: 0; left: 0;
        width: 100%; height: 100%;
        background:
          radial-gradient(ellipse 800px 300px at 50% 0%, rgba(245, 197, 24, 0.06) 0%, transparent 70%);
        pointer-events: none;
      }

      .page-banner h1 {
        font-family: var(--font-display);
        font-size: 2.2rem;
        font-weight: 800;
        text-transform: uppercase;
        letter-spacing: 6px;
        color: var(--text-primary);
        margin-bottom: 12px;
        position: relative;
      }

      .page-banner h1 span {
        color: var(--yellow-bright);
        text-shadow: 0 0 20px var(--yellow-glow);
      }

      .page-banner p {
        color: var(--text-secondary);
        font-size: 0.95rem;
        font-weight: 300;
        letter-spacing: 1px;
      }

      /* Yellow accent line */
      .page-banner::after {
        content: '';
        position: absolute;
        bottom: 0; left: 0;
        width: 100%; height: 1px;
        background: linear-gradient(90deg, transparent 5%, var(--yellow-dark) 30%, var(--yellow-bright) 50%, var(--yellow-dark) 70%, transparent 95%);
        box-shadow: 0 0 20px var(--yellow-glow);
      }

      /* ========== CERTIFICATE GRID ========== */
      .cert-grid {
        display: grid;
        grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
        gap: 28px;
        margin-top: 10px;
      }

      /* ========== CERTIFICATE CARD ========== */
      .cert-card {
        background: var(--bg-card);
        border: 1px solid var(--border-color);
        border-radius: 12px;
        overflow: hidden;
        transition: var(--transition-smooth);
        cursor: pointer;
        position: relative;
      }

      .cert-card::before {
        content: '';
        position: absolute;
        top: 0; left: 0;
        width: 100%; height: 100%;
        background: linear-gradient(180deg, rgba(245, 197, 24, 0.02) 0%, transparent 50%);
        pointer-events: none;
        z-index: 1;
        transition: var(--transition-smooth);
      }

      .cert-card::after {
        content: '';
        position: absolute;
        top: -1px; left: -1px;
        right: -1px; bottom: -1px;
        border-radius: 12px;
        border: 1px solid transparent;
        background: linear-gradient(135deg, rgba(245, 197, 24, 0.3), transparent 50%, rgba(245, 197, 24, 0.1)) border-box;
        -webkit-mask: linear-gradient(#fff 0 0) padding-box, linear-gradient(#fff 0 0);
        -webkit-mask-composite: xor;
        mask-composite: exclude;
        opacity: 0;
        transition: opacity 0.4s ease;
        pointer-events: none;
        z-index: 2;
      }

      .cert-card:hover {
        transform: translateY(-8px);
        background: var(--bg-card-hover);
        box-shadow:
          0 20px 50px rgba(0, 0, 0, 0.4),
          0 0 40px rgba(245, 197, 24, 0.06);
      }

      .cert-card:hover::before {
        background: linear-gradient(180deg, rgba(245, 197, 24, 0.05) 0%, transparent 60%);
      }

      .cert-card:hover::after {
        opacity: 1;
      }

      .cert-img-wrapper {
        height: 200px;
        overflow: hidden;
        background: var(--bg-surface);
        display: flex;
        align-items: center;
        justify-content: center;
        position: relative;
      }

      .cert-img-wrapper::after {
        content: '';
        position: absolute;
        bottom: 0; left: 0;
        width: 100%; height: 60%;
        background: linear-gradient(to top, var(--bg-card), transparent);
        pointer-events: none;
        z-index: 1;
        transition: var(--transition-smooth);
      }

      .cert-card:hover .cert-img-wrapper::after {
        background: linear-gradient(to top, var(--bg-card-hover), transparent);
      }

      .cert-img-wrapper img {
        width: 100%;
        height: 100%;
        object-fit: cover;
        transition: transform 0.6s ease, filter 0.6s ease;
        filter: brightness(0.7) saturate(0.8);
      }

      .cert-card:hover .cert-img-wrapper img {
        transform: scale(1.08);
        filter: brightness(0.85) saturate(1);
      }

      /* Corner badge */
      .cert-badge {
        position: absolute;
        top: 14px;
        right: 14px;
        width: 40px;
        height: 40px;
        background: rgba(6, 6, 12, 0.7);
        backdrop-filter: blur(10px);
        border: 1px solid var(--border-glow);
        border-radius: 8px;
        display: flex;
        align-items: center;
        justify-content: center;
        color: var(--yellow-bright);
        font-size: 0.85rem;
        z-index: 3;
        transition: var(--transition-smooth);
      }

      .cert-card:hover .cert-badge {
        background: var(--yellow-bright);
        color: var(--bg-primary);
        box-shadow: 0 0 20px var(--yellow-glow-strong);
      }

      .cert-body {
        padding: 24px;
        text-align: left;
        position: relative;
        z-index: 2;
      }

      .cert-body h3 {
        font-family: var(--font-display);
        font-size: 0.78rem;
        font-weight: 600;
        color: var(--text-primary);
        margin-bottom: 10px;
        letter-spacing: 0.8px;
        text-transform: uppercase;
        line-height: 1.6;
        transition: color 0.3s ease;
      }

      .cert-card:hover .cert-body h3 {
        color: var(--yellow-bright);
      }

      .cert-body p {
        color: var(--text-secondary);
        font-size: 0.88rem;
        margin-bottom: 20px;
        font-weight: 300;
        line-height: 1.7;
        display: -webkit-box;
        -webkit-line-clamp: 2;
        -webkit-box-orient: vertical;
        overflow: hidden;
      }

      .cert-btn {
        display: inline-flex;
        align-items: center;
        gap: 10px;
        color: var(--yellow-dark);
        font-family: var(--font-display);
        font-weight: 600;
        text-transform: uppercase;
        font-size: 0.65rem;
        letter-spacing: 1.5px;
        transition: var(--transition-smooth);
        position: relative;
      }

      .cert-btn::after {
        content: '';
        position: absolute;
        bottom: -3px;
        left: 0;
        width: 100%;
        height: 1px;
        background: var(--yellow-dark);
        transform: scaleX(0);
        transform-origin: left;
        transition: transform 0.4s ease;
      }

      .cert-card:hover .cert-btn {
        color: var(--yellow-bright);
      }

      .cert-card:hover .cert-btn::after {
        background: var(--yellow-bright);
        transform: scaleX(1);
      }

      .cert-btn i {
        transition: transform 0.3s ease;
        font-size: 0.7rem;
      }

      .cert-card:hover .cert-btn i {
        transform: translateX(4px);
      }

      /* ========== DETAIL VIEW ========== */
      #certificate-detail-view {
        display: none;
        width: 100%;
        margin: 0;
        padding: 0;
      }

      .detail-container {
        background: transparent;
        border-radius: 0;
        box-shadow: none;
        padding: 0;
        text-align: center;
        width: 100%;
        margin: 0;
      }

      .detail-header {
        display: flex;
        justify-content: space-between;
        align-items: center;
        margin-bottom: 0;
        border: 1px solid var(--border-color);
        border-radius: 12px;
        padding: 18px 28px;
        flex-wrap: wrap;
        gap: 15px;
        background: var(--bg-card);
        backdrop-filter: blur(10px);
      }

      .detail-header h2 {
        font-family: var(--font-display);
        font-size: 0.9rem;
        font-weight: 600;
        color: var(--yellow-bright);
        margin: 0;
        letter-spacing: 1.5px;
        text-transform: uppercase;
      }

      .back-btn {
        background: transparent;
        color: var(--text-secondary);
        padding: 10px 22px;
        border: 1px solid var(--border-glow);
        border-radius: 6px;
        cursor: pointer;
        display: flex;
        align-items: center;
        gap: 10px;
        transition: var(--transition-smooth);
        font-weight: 500;
        font-family: var(--font-display);
        font-size: 0.65rem;
        letter-spacing: 1px;
        text-transform: uppercase;
      }

      .back-btn:hover {
        background: var(--yellow-bright);
        color: var(--bg-primary);
        border-color: var(--yellow-bright);
        box-shadow: 0 0 20px var(--yellow-glow-strong);
      }

      .back-btn i {
        font-size: 0.75rem;
      }

      /* The PDF Display Area */
      .certificate-display {
        width: 100%;
        background: #1a1a2e;
        position: relative;
        display: flex;
        flex-direction: column;
        align-items: center;
        padding: 0;
        margin: 16px 0 0;
        border: 1px solid var(--border-color);
        border-radius: 12px;
        overflow: hidden;
      }

      @media (min-width: 769px) {
        .certificate-display {
          height: 800px;
        }
      }

      @media (max-width: 768px) {
        .certificate-display {
          padding: 0;
          gap: 0;
          border-radius: 8px;
        }
      }

      .certificate-display iframe {
        width: 100%;
        height: 100%;
        border: none;
        display: block;
      }

      .certificate-display canvas {
        width: 100% !important;
        height: auto !important;
        margin: 0 !important;
        padding: 0 !important;
        box-shadow: 0 2px 5px rgba(0, 0, 0, 0.3);
        display: block !important;
        max-width: none !important;
      }

      .certificate-display > div {
        width: 100% !important;
        padding: 0 !important;
        margin: 0 !important;
      }

      /* ========== STATS BAR ========== */
      .stats-bar {
        position: relative;
        z-index: 1;
        display: grid;
        grid-template-columns: repeat(4, 1fr);
        gap: 0;
        margin-top: -40px;
        margin-bottom: 40px;
      }

      .stat-item {
        text-align: center;
        padding: 30px 20px;
        background: var(--bg-card);
        border: 1px solid var(--border-color);
        position: relative;
        transition: var(--transition-smooth);
      }

      .stat-item:not(:last-child) {
        border-right: none;
      }

      .stat-item:first-child {
        border-radius: 12px 0 0 12px;
      }

      .stat-item:last-child {
        border-radius: 0 12px 12px 0;
      }

      .stat-item:hover {
        background: var(--bg-card-hover);
        z-index: 2;
        box-shadow: 0 0 30px rgba(245, 197, 24, 0.08);
      }

      .stat-number {
        font-family: var(--font-display);
        font-size: 2rem;
        font-weight: 800;
        color: var(--yellow-bright);
        text-shadow: 0 0 20px var(--yellow-glow);
        line-height: 1;
        margin-bottom: 8px;
      }

      .stat-label {
        font-size: 0.78rem;
        color: var(--text-secondary);
        font-weight: 300;
        text-transform: uppercase;
        letter-spacing: 1.5px;
        font-family: var(--font-display);
        font-size: 0.6rem;
      }

      /* ========== FOOTER ========== */
      footer {
        position: relative;
        z-index: 1;
        background: var(--bg-secondary);
        border-top: 1px solid var(--border-color);
        padding: 70px 0 0;
        margin-top: 40px;
      }

      footer::before {
        content: '';
        position: absolute;
        top: 0; left: 0;
        width: 100%; height: 2px;
        background: linear-gradient(90deg, transparent 5%, var(--yellow-dark) 30%, var(--yellow-bright) 50%, var(--yellow-dark) 70%, transparent 95%);
        box-shadow: 0 0 20px var(--yellow-glow);
      }

      .footer-content {
        display: grid;
        grid-template-columns: 1.5fr 1fr 1fr 1.2fr;
        gap: 40px;
        margin-bottom: 50px;
      }

      .footer-widget h3 {
        font-family: var(--font-display);
        font-size: 0.75rem;
        font-weight: 600;
        text-transform: uppercase;
        letter-spacing: 2px;
        color: var(--yellow-bright);
        margin-bottom: 24px;
        position: relative;
        padding-bottom: 12px;
      }

      .footer-widget h3::after {
        content: '';
        position: absolute;
        bottom: 0; left: 0;
        width: 30px;
        height: 2px;
        background: var(--yellow-bright);
        box-shadow: 0 0 8px var(--yellow-glow);
      }

      .footer-widget > p {
        color: var(--text-secondary);
        font-size: 0.88rem;
        line-height: 1.8;
        font-weight: 300;
      }

      .social-links {
        display: flex;
        gap: 10px;
        margin-top: 20px;
      }

      .social-links a {
        width: 38px;
        height: 38px;
        border-radius: 6px;
        border: 1px solid var(--border-glow);
        display: flex;
        align-items: center;
        justify-content: center;
        color: var(--text-secondary);
        font-size: 0.85rem;
        transition: var(--transition-smooth);
        background: rgba(245, 197, 24, 0.02);
      }

      .social-links a:hover {
        background: var(--yellow-bright);
        color: var(--bg-primary);
        border-color: var(--yellow-bright);
        box-shadow: 0 0 20px var(--yellow-glow-strong);
        transform: translateY(-3px);
      }

      .footer-links li {
        margin-bottom: 10px;
      }

      .footer-links a {
        color: var(--text-secondary);
        font-size: 0.88rem;
        font-weight: 300;
        display: flex;
        align-items: center;
        gap: 8px;
        position: relative;
        padding-left: 0;
        transition: var(--transition-smooth);
      }

      .footer-links a::before {
        content: '';
        width: 0;
        height: 1px;
        background: var(--yellow-bright);
        transition: width 0.3s ease;
        position: absolute;
        bottom: -2px;
        left: 0;
      }

      .footer-links a:hover {
        color: var(--yellow-bright);
        padding-left: 8px;
      }

      .footer-links a:hover::before {
        width: 100%;
      }

      .footer-widget .form-group {
        margin-bottom: 12px;
      }

      .footer-widget .form-group input {
        width: 100%;
        padding: 12px 16px;
        background: rgba(255, 255, 255, 0.03);
        border: 1px solid var(--border-color);
        border-radius: 6px;
        color: var(--text-primary);
        font-family: var(--font-body);
        font-size: 0.88rem;
        transition: var(--transition-smooth);
        outline: none;
      }

      .footer-widget .form-group input::placeholder {
        color: var(--text-muted);
      }

      .footer-widget .form-group input:focus {
        border-color: var(--yellow-bright);
        box-shadow: 0 0 15px var(--yellow-glow);
        background: rgba(245, 197, 24, 0.03);
      }

      .footer-widget .btn {
        width: 100%;
        justify-content: center;
        padding: 12px;
        font-size: 0.68rem;
      }

      .footer-bottom {
        border-top: 1px solid var(--border-color);
        padding: 20px 0;
        text-align: center;
      }

      .footer-bottom p {
        color: var(--text-muted);
        font-size: 0.8rem;
        font-weight: 300;
        letter-spacing: 0.5px;
      }

      /* ========== SCROLL REVEAL ========== */
      .reveal {
        opacity: 0;
        transform: translateY(40px);
        transition: opacity 0.8s ease, transform 0.8s ease;
      }

      .reveal.visible {
        opacity: 1;
        transform: translateY(0);
      }

      .reveal-delay-1 { transition-delay: 0.1s; }
      .reveal-delay-2 { transition-delay: 0.2s; }
      .reveal-delay-3 { transition-delay: 0.3s; }
      .reveal-delay-4 { transition-delay: 0.4s; }
      .reveal-delay-5 { transition-delay: 0.5s; }

      /* ========== CUSTOM SCROLLBAR ========== */
      ::-webkit-scrollbar {
        width: 8px;
      }

      ::-webkit-scrollbar-track {
        background: var(--bg-primary);
      }

      ::-webkit-scrollbar-thumb {
        background: linear-gradient(180deg, var(--yellow-dark), var(--yellow-bright));
        border-radius: 4px;
      }

      ::-webkit-scrollbar-thumb:hover {
        box-shadow: 0 0 10px var(--yellow-glow-strong);
      }

      /* ========== LOADING SPINNER ========== */
      .pdf-loading {
        display: flex;
        flex-direction: column;
        align-items: center;
        justify-content: center;
        padding: 60px 20px;
        gap: 20px;
        color: var(--text-secondary);
        font-size: 0.88rem;
      }

      .spinner {
        width: 40px;
        height: 40px;
        border: 3px solid var(--border-color);
        border-top-color: var(--yellow-bright);
        border-radius: 50%;
        animation: spin 0.8s linear infinite;
      }

      @keyframes spin {
        to { transform: rotate(360deg); }
      }

      /* ========== RESPONSIVE ========== */
      @media (max-width: 992px) {
        .footer-content {
          grid-template-columns: 1fr 1fr;
        }

        .stats-bar {
          grid-template-columns: repeat(2, 1fr);
          margin-top: -30px;
        }

        .stat-item:first-child {
          border-radius: 12px 0 0 0;
        }

        .stat-item:nth-child(2) {
          border-radius: 0 12px 0 0;
        }

        .stat-item:nth-child(3) {
          border-radius: 0 0 0 12px;
        }

        .stat-item:last-child {
          border-radius: 0 0 12px 0;
        }

        .stat-item:nth-child(2) {
          border-right: 1px solid var(--border-color);
        }

        .cert-grid {
          grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
          gap: 20px;
        }
      }

      @media (max-width: 768px) {
        .mobile-menu-btn {
          display: flex;
          align-items: center;
          justify-content: center;
        }

        nav {
          position: absolute;
          top: 72px;
          left: 0;
          width: 100%;
          background: rgba(6, 6, 12, 0.98);
          backdrop-filter: blur(20px);
          border-bottom: 1px solid var(--border-glow);
          padding: 20px;
          max-height: 0;
          overflow: hidden;
          transition: max-height 0.5s ease, padding 0.5s ease;
        }

        nav.active {
          max-height: 400px;
          padding: 20px;
        }

        nav ul {
          flex-direction: column;
          gap: 4px;
        }

        nav ul li a {
          display: block;
          padding: 12px 16px;
          font-size: 0.7rem;
        }

        .header-contact {
          flex-direction: column;
          gap: 4px;
        }

        .page-banner {
          padding: 60px 0 40px;
        }

        .page-banner h1 {
          font-size: 1.4rem;
          letter-spacing: 3px;
        }

        .page-section {
          padding: 60px 0;
        }

        .section-title h2 {
          font-size: 1.4rem;
          letter-spacing: 2px;
        }

        .section-title {
          margin-bottom: 40px;
        }

        .cert-grid {
          grid-template-columns: 1fr;
          gap: 20px;
        }

        .stats-bar {
          grid-template-columns: 1fr 1fr;
          gap: 0;
        }

        .stat-item:not(:last-child) {
          border-right: 1px solid var(--border-color);
        }

        .stat-item:nth-child(n+3) {
          border-top: none;
        }

        .detail-header {
          flex-direction: column;
          align-items: stretch;
          text-align: center;
        }

        .back-btn {
          justify-content: center;
        }

        .footer-content {
          grid-template-columns: 1fr;
          gap: 30px;
        }
      }

      @media (max-width: 480px) {
        .btn {
          padding: 12px 24px;
          font-size: 0.65rem;
          letter-spacing: 1.5px;
        }

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

        .stat-number {
          font-size: 1.5rem;
        }

        .page-banner h1 {
          font-size: 1.1rem;
          letter-spacing: 2px;
        }
      }

      /* ========== TOAST NOTIFICATION ========== */
      .toast {
        position: fixed;
        bottom: 30px;
        right: 30px;
        background: var(--bg-card);
        border: 1px solid var(--yellow-glow);
        border-left: 3px solid var(--yellow-bright);
        padding: 16px 24px;
        border-radius: 8px;
        color: var(--text-primary);
        font-size: 0.9rem;
        z-index: 9999;
        box-shadow: 0 10px 40px rgba(0,0,0,0.5), 0 0 20px var(--yellow-glow);
        transform: translateX(120%);
        transition: transform 0.4s cubic-bezier(0.68, -0.55, 0.265, 1.55);
        max-width: 350px;
      }

      .toast.show {
        transform: translateX(0);
      }

      .toast .toast-close {
        position: absolute;
        top: 8px;
        right: 12px;
        background: none;
        border: none;
        color: var(--text-muted);
        cursor: pointer;
        font-size: 0.85rem;
        transition: color 0.3s;
      }

      .toast .toast-close:hover {
        color: var(--yellow-bright);
      }