:root {
      --primary: #3a86ff;
      --secondary: #8338ec;
      --success: #06d6a0;
      --warning: #ffbe0b;
      --danger: #ef476f;
      --gray: #6c757d;
      --light: #f8f9fa;
      --dark: #212529;
      --bg-gradient: linear-gradient(135deg, #e0f2ff, #f8f9fa);
      --card-bg: white;
      --card-color: #212529;
      --toggle-bg: #fff;
      --toggle-border: #ddd;
    }

    * {
      margin: 0;
      padding: 0;
      box-sizing: border-box;
      font-family: 'Segoe UI', system-ui, sans-serif;
    }

    body {
      background: var(--bg-gradient);
      color: var(--dark);
      transition: background 0.3s ease, color 0.3s ease;
      min-height: 100vh;
    }

    .dark-mode {
      --bg-gradient: #121212;
      --card-bg: #1e1e1e;
      --card-color: #f5f5f5;
      --toggle-bg: #333;
      --toggle-border: #555;
    }

    .kiosk-container {
      max-width: 1080px;
      margin: auto;
      padding: 20px;
      display: flex;
      flex-direction: column;
      gap: 30px;
    }

    .hero-container {
      position: relative;
      text-align: center;
      margin-bottom: 30px;
    }

    .hero-image {
      width: 100%;
      max-height: 350px;
      object-fit: cover;
      border-radius: 12px;
      box-shadow: 0 4px 10px rgba(0,0,0,0.1);
    }

    header.hero-header {
      position: absolute;
      top: 50%;
      left: 50%;
      transform: translate(-50%, -50%);
      z-index: 2;
      color: white;
      text-shadow: 1px 1px 4px rgba(0, 0, 0, 0.6);
    }

    .hero-logo {
      position: absolute;
      top: 15px;
      left: 20px;
      height: 50px;
      z-index: 3;
    }

    header.hero-header h1 {
      font-size: 2.4rem;
      font-weight: 800;
      white-space: nowrap;
      overflow: hidden;
      text-overflow: ellipsis;
      color: #fff;
      text-shadow: 2px 2px 20px rgba(17, 5, 241, 0.7);
      margin: 0;
    }

    header.hero-header .subtitle {
      font-size: 1.1rem;
      color: #f1f1f1;
    }

    .mode-toggle {
      position: fixed;
      top: 20px;
      right: 20px;
      background: var(--toggle-bg);
      border: 1px solid var(--toggle-border);
      padding: 8px 15px;
      border-radius: 30px;
      display: flex;
      align-items: center;
      gap: 10px;
      cursor: pointer;
      font-size: 0.9rem;
      color: inherit;
      z-index: 1000;
      box-shadow: 0 2px 6px rgba(0, 0, 0, 0.1);
      transition: all 0.3s ease;
    }

    .mode-toggle:hover {
      background: #eee;
    }

    .main-options {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
      gap: 25px;
    }

    .option-card {
      background: var(--card-bg);
      color: var(--card-color);
      border-radius: 18px;
      padding: 25px;
      text-align: center;
      border: 2px solid transparent;
      box-shadow: 0 6px 18px rgba(0, 0, 0, 0.05);
      cursor: pointer;
      transition: all 0.3s ease;
    }

    .option-card:hover {
      transform: translateY(-6px);
      border-color: var(--primary);
      box-shadow: 0 12px 24px rgba(0,0,0,0.1);
    }

    .option-card.primary {
      background: linear-gradient(135deg, var(--primary), var(--secondary));
      color: white;
    }

    .option-icon {
      font-size: 3rem;
      margin-bottom: 15px;
    }

    .option-title {
      font-size: 1.4rem;
      font-weight: 600;
    }

    .option-desc {
      font-size: 0.95rem;
      color: var(--gray);
    }

    .option-card.primary .option-desc {
      color: rgba(255,255,255,0.9);
    }

    .quick-actions {
      display: flex;
      flex-wrap: wrap;
      justify-content: center;
      gap: 15px;
      margin-top: 10px;
    }

    .quick-btn {
      background: var(--card-bg);
      color: var(--card-color);
      border: 1px solid var(--toggle-border);
      padding: 12px 20px;
      border-radius: 50px;
      display: flex;
      align-items: center;
      gap: 8px;
      cursor: pointer;
      font-weight: 500;
      transition: background 0.3s ease;
    }

    .quick-btn:hover {
      background: #f1f1f1;
    }

    .status-bar {
      background: var(--card-bg);
      color: var(--card-color);
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
      gap: 15px;
      padding: 20px;
      border-radius: 16px;
      box-shadow: 0 8px 18px rgba(0,0,0,0.05);
    }

    .status-item {
      text-align: center;
    }

    .status-value {
      font-size: 1.6rem;
      font-weight: 700;
      color: var(--primary);
    }

    .status-label {
      font-size: 0.9rem;
      color: var(--gray);
    }

    @media (max-width: 600px) {
      header.hero-header h1 {
        font-size: 1.8rem;
      }
      .option-icon {
        font-size: 2.5rem;
      }
    }