/* roulang page: index */
:root {
      --deep-space: #0A0E27;
      --panel-bg1: #111633;
      --panel-bg2: #0C102B;
      --cyan-electric: #00F0FF;
      --magenta-energy: #FF3CAC;
      --cta-gradient: linear-gradient(135deg, #FF3CAC, #FF6B6B);
      --text-primary: #EAF0FB;
      --text-secondary: #B0C4DE;
      --border-glow: rgba(0,240,255,0.15);
      --card-bg: rgba(255,255,255,0.03);
      --shadow-sm: 0 0 30px rgba(0,240,255,0.08);
      --shadow-hover: 0 0 45px rgba(0,240,255,0.2);
      --radius-card: 12px;
      --radius-btn: 6px;
      --radius-input: 6px;
      --radius-pill: 50px;
      --font-mono: 'DIN', 'Courier New', monospace;
    }

    * {
      box-sizing: border-box;
    }

    body {
      margin: 0;
      font-family: 'Segoe UI', 'System UI', -apple-system, 'Helvetica Neue', sans-serif;
      background-color: var(--deep-space);
      color: var(--text-secondary);
      line-height: 1.8;
      font-size: 16px;
      overflow-x: hidden;
    }

    h1, h2, h3, h4 {
      color: var(--text-primary);
      font-weight: 700;
      letter-spacing: -0.5px;
      margin-top: 0;
    }

    a {
      color: var(--cyan-electric);
      text-decoration: none;
      transition: color 0.25s ease, background 0.25s;
    }

    a:hover {
      color: var(--magenta-energy);
    }

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

    .bg-deep {
      background-color: var(--deep-space);
    }

    .bg-panel-alt {
      background-color: var(--panel-bg1);
    }

    .bg-panel-alt2 {
      background-color: var(--panel-bg2);
    }

    .container-custom {
      max-width: 1200px;
      margin: 0 auto;
      padding-left: 1.5rem;
      padding-right: 1.5rem;
    }

    /* Typography */
    .text-cyan {
      color: var(--cyan-electric);
    }

    .text-magenta {
      color: var(--magenta-energy);
    }

    .gradient-text {
      background: linear-gradient(to right, var(--cyan-electric), #7B68EE);
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
      background-clip: text;
    }

    .data-number {
      font-family: var(--font-mono);
      font-weight: 700;
      color: var(--cyan-electric);
    }

    /* Navigation */
    .navbar-custom {
      background: rgba(10,14,39,0.85);
      backdrop-filter: blur(20px);
      -webkit-backdrop-filter: blur(20px);
      border-bottom: 1px solid rgba(0,240,255,0.2);
      position: fixed;
      top: 0;
      width: 100%;
      z-index: 999;
      transition: background 0.3s;
    }

    .logo-text {
      font-size: 1.8rem;
      font-weight: 900;
      font-style: italic;
      background: linear-gradient(135deg, #00F0FF, #1E90FF);
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
      background-clip: text;
      letter-spacing: -0.5px;
    }

    .logo-sub {
      font-size: 0.8rem;
      color: var(--text-secondary);
      margin-left: 0.25rem;
      font-weight: 400;
      vertical-align: middle;
    }

    .nav-link {
      color: #CCD6E0;
      font-weight: 500;
      padding: 0.5rem 1rem;
      border-radius: 6px;
      transition: 0.2s;
    }

    .nav-link:hover {
      color: var(--cyan-electric);
      background: rgba(0,240,255,0.08);
    }

    .mega-panel {
      background: rgba(17,22,51,0.98);
      backdrop-filter: blur(24px);
      border: 1px solid var(--border-glow);
      border-radius: 16px;
      padding: 1.5rem;
      box-shadow: 0 20px 40px rgba(0,0,0,0.6);
      display: none;
      position: absolute;
      top: 100%;
      right: 0;
      min-width: 320px;
      z-index: 1000;
    }

    .mega-trigger:hover .mega-panel {
      display: block;
    }

    .mega-card {
      background: rgba(255,255,255,0.02);
      padding: 0.75rem;
      border-radius: 10px;
      transition: 0.2s;
      color: #B0C4DE;
    }

    .mega-card:hover {
      background: rgba(0,240,255,0.1);
      color: white;
    }

    .off-canvas-menu {
      background: #0A0E27;
      color: white;
    }

    .off-canvas-menu .nav-link {
      display: block;
      padding: 0.8rem;
      border-bottom: 1px solid rgba(255,255,255,0.05);
    }

    /* Hero */
    .hero-section {
      min-height: 90vh;
      display: flex;
      align-items: center;
      background-image: url('/assets/images/backpic/back-1.webp');
      background-size: cover;
      background-position: center;
      position: relative;
      margin-top: 70px;
    }

    .hero-overlay {
      background: radial-gradient(circle at 30% 30%, rgba(10,14,39,0.7) 0%, #0A0E27 90%);
      position: absolute;
      inset: 0;
    }

    .hero-content {
      position: relative;
      z-index: 2;
      width: 100%;
    }

    .stat-card-mini {
      background: rgba(10,14,39,0.8);
      backdrop-filter: blur(10px);
      border: 1px solid var(--border-glow);
      border-radius: 16px;
      padding: 1.25rem;
      text-align: center;
    }

    .btn-primary-gradient {
      background: var(--cta-gradient);
      color: white;
      font-weight: 700;
      border: none;
      padding: 0.9rem 2.2rem;
      border-radius: var(--radius-btn);
      box-shadow: 0 8px 20px rgba(255,60,172,0.4);
      transition: 0.3s;
      display: inline-block;
    }

    .btn-primary-gradient:hover {
      box-shadow: 0 0 30px rgba(255,60,172,0.8);
      transform: translateY(-2px);
      color: white;
    }

    .btn-outline-cyan {
      background: transparent;
      border: 1.5px solid var(--cyan-electric);
      color: var(--cyan-electric);
      padding: 0.7rem 2rem;
      border-radius: var(--radius-btn);
      font-weight: 600;
      transition: 0.3s;
    }

    .btn-outline-cyan:hover {
      background: rgba(0,240,255,0.1);
      color: white;
      border-color: white;
    }

    /* Cards & Panels */
    .glass-card {
      background: var(--card-bg);
      backdrop-filter: blur(12px);
      -webkit-backdrop-filter: blur(12px);
      border: 1px solid var(--border-glow);
      border-radius: var(--radius-card);
      box-shadow: var(--shadow-sm);
      transition: transform 0.25s, box-shadow 0.25s;
    }

    .glass-card:hover {
      transform: translateY(-6px);
      box-shadow: var(--shadow-hover);
      border-color: rgba(0,240,255,0.5);
    }

    .service-icon-placeholder {
      width: 70px;
      height: 70px;
      background: rgba(0,240,255,0.05);
      border-radius: 18px;
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 2rem;
      color: var(--cyan-electric);
    }

    .comparison-table th {
      color: var(--cyan-electric);
      font-weight: 600;
    }

    .comparison-table td {
      color: #B0C4DE;
    }

    .accordion-title {
      background: transparent;
      color: #E0E8F0;
      border: none;
      font-weight: 600;
      padding-left: 0;
    }

    .accordion-title::before {
      color: var(--magenta-energy);
    }

    .accordion-item.is-active .accordion-title::before {
      color: var(--cyan-electric);
    }

    .footer-link {
      color: #8899AA;
      transition: 0.2s;
    }

    .footer-link:hover {
      color: var(--cyan-electric);
    }

    input.form-input-custom {
      background: transparent;
      border: 1px solid rgba(0,240,255,0.3);
      border-radius: var(--radius-input);
      color: white;
      padding: 0.7rem 1rem;
      transition: 0.2s;
    }

    input.form-input-custom:focus {
      border-color: var(--cyan-electric);
      box-shadow: 0 0 15px rgba(0,240,255,0.3);
      outline: none;
    }

    @keyframes breathe {
      0% { opacity: 0.9; text-shadow: 0 0 5px cyan; }
      50% { opacity: 1; text-shadow: 0 0 20px cyan; }
      100% { opacity: 0.9; text-shadow: 0 0 5px cyan; }
    }

    .breathe-number {
      animation: breathe 2.5s infinite;
    }

    @media (max-width: 640px) {
      .hero-section {
        min-height: 70vh;
        margin-top: 60px;
      }
      .stat-card-mini {
        margin-bottom: 0.8rem;
      }
    }