/* Reset & Theme Variables matching KDU Events Main Page */
    :root {
      --bg-dark: #0b192c;
      --bg-card: rgba(19, 34, 56, 0.85);
      --bg-input: rgba(255, 255, 255, 0.05);
      --primary-red: #ff3b30;
      --primary-red-hover: #e03126;
      --text-white: #ffffff;
      --text-muted: rgba(255, 255, 255, 0.65);
      --border-subtle: rgba(255, 255, 255, 0.12);
    }

    * {
      box-sizing: border-box;
      margin: 0;
      padding: 0;
    }

    body {
      background-color: #07101e;
      color: var(--text-white);
      font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
      line-height: 1.6;
    }

    /* Navigation Header */
    .navbar-header {
      background: rgba(11, 25, 44, 0.95);
      backdrop-filter: blur(12px);
      position: sticky;
      top: 0;
      z-index: 1000;
      border-bottom: 1px solid var(--border-subtle);
      padding: 16px 0;
    }

    .nav-container {
      max-width: 1320px;
      margin: 0 auto;
      padding: 0 30px;
      display: flex;
      align-items: center;
      justify-content: space-between;
    }

    .brand-logo {
      display: flex;
      align-items: center;
      gap: 12px;
      text-decoration: none;
    }

    .logo-img {
      height: 38px;
      width: auto;
    }

    .logo-text {
      font-size: 1.25rem;
      font-weight: 800;
      color: #ffffff;
      letter-spacing: -0.5px;
    }

    .logo-highlight {
      color: var(--primary-red);
    }

    .nav-links {
      display: flex;
      gap: 32px;
    }

    .nav-links a {
      color: var(--text-muted);
      text-decoration: none;
      font-weight: 500;
      font-size: 0.95rem;
      transition: color 0.2s ease;
    }

    .nav-links a:hover,
    .nav-links a.active {
      color: var(--text-white);
    }

    .btn-register-header {
      background: var(--primary-red);
      color: #ffffff;
      padding: 10px 22px;
      border-radius: 25px;
      text-decoration: none;
      font-weight: 600;
      font-size: 0.9rem;
      transition: background 0.2s ease;
    }

    .btn-register-header:hover {
      background: var(--primary-red-hover);
    }

    /* Hero Banner Header */
    .host-hero {
      position: relative;
      background: linear-gradient(180deg, #0b192c 0%, #07101e 100%);
      padding: 70px 20px 90px;
      text-align: center;
      border-bottom: 1px solid var(--border-subtle);
    }

    .badge-tag {
      color: var(--primary-red);
      font-size: 0.8rem;
      font-weight: 700;
      letter-spacing: 1.5px;
      text-transform: uppercase;
      margin-bottom: 12px;
      display: inline-block;
    }

    .hero-title {
      font-size: 2.8rem;
      font-weight: 800;
      margin-bottom: 12px;
      letter-spacing: -0.5px;
    }

    .text-red {
      color: var(--primary-red);
    }

    .hero-subtitle {
      color: var(--text-muted);
      max-width: 620px;
      margin: 0 auto;
      font-size: 1.05rem;
    }

    /* Main Card Form */
    .host-container {
      max-width: 860px;
      margin: -40px auto 80px auto;
      padding: 0 20px;
      position: relative;
      z-index: 10;
    }

    .host-card-form {
      background: var(--bg-card);
      border: 1px solid var(--border-subtle);
      border-radius: 20px;
      padding: 44px;
      box-shadow: 0 20px 40px rgba(0, 0, 0, 0.4);
      backdrop-filter: blur(10px);
    }

    .form-header {
      margin-bottom: 32px;
      border-bottom: 1px solid var(--border-subtle);
      padding-bottom: 20px;
    }

    .form-header h2 {
      font-size: 1.7rem;
      font-weight: 700;
      margin-bottom: 6px;
    }

    .form-header p {
      color: var(--text-muted);
      font-size: 0.95rem;
    }

    .form-section {
      margin-bottom: 36px;
    }

    .section-title {
      font-size: 1.15rem;
      font-weight: 700;
      margin-bottom: 20px;
      display: flex;
      align-items: center;
      gap: 12px;
    }

    .num-badge {
      background: var(--primary-red);
      color: #ffffff;
      width: 26px;
      height: 26px;
      border-radius: 50%;
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 0.85rem;
      font-weight: 700;
    }

    .form-grid {
      display: grid;
      grid-template-columns: repeat(2, 1fr);
      gap: 20px;
    }

    .full-width {
      grid-column: span 2;
    }

    .form-group {
      display: flex;
      flex-direction: column;
      gap: 8px;
    }

    .form-group label {
      font-size: 0.88rem;
      font-weight: 600;
      color: var(--text-muted);
    }

    .form-group input,
    .form-group select,
    .form-group textarea {
      background: var(--bg-input);
      border: 1px solid var(--border-subtle);
      border-radius: 10px;
      padding: 13px 16px;
      color: #ffffff;
      font-size: 0.95rem;
      outline: none;
      transition: border-color 0.2s, background 0.2s;
    }

    .form-group input:focus,
    .form-group select:focus,
    .form-group textarea:focus {
      border-color: var(--primary-red);
      background: rgba(255, 255, 255, 0.08);
    }

    .form-group select option {
      background-color: #0b192c;
      color: #ffffff;
    }

    /* Logistics Toggle Cards */
    .logistics-grid {
      display: grid;
      grid-template-columns: repeat(2, 1fr);
      gap: 16px;
    }

    .toggle-card {
      display: flex;
      align-items: flex-start;
      gap: 14px;
      background: var(--bg-input);
      border: 1px solid var(--border-subtle);
      padding: 16px;
      border-radius: 12px;
      cursor: pointer;
      transition: border-color 0.2s, background 0.2s;
    }

    .toggle-card:hover {
      border-color: rgba(255, 255, 255, 0.3);
      background: rgba(255, 255, 255, 0.08);
    }

    .toggle-card input[type="checkbox"] {
      accent-color: var(--primary-red);
      width: 18px;
      height: 18px;
      margin-top: 3px;
    }

    .toggle-title {
      display: block;
      font-weight: 600;
      font-size: 0.92rem;
    }

    .toggle-desc {
      display: block;
      font-size: 0.8rem;
      color: var(--text-muted);
      margin-top: 2px;
    }

    /* Submit Button */
    .form-actions {
      text-align: right;
      margin-top: 30px;
    }

    .btn-submit-proposal {
      background: var(--primary-red);
      color: #ffffff;
      padding: 15px 36px;
      border: none;
      border-radius: 30px;
      font-size: 0.98rem;
      font-weight: 700;
      cursor: pointer;
      transition: background 0.2s ease, transform 0.1s ease;
    }

    .btn-submit-proposal:hover {
      background: var(--primary-red-hover);
      transform: translateY(-2px);
    }

    /* Footer Styling */
    .site-footer {
      background: var(--bg-dark);
      border-top: 1px solid var(--border-subtle);
      padding: 60px 0 20px 0;
    }

    .footer-container {
      max-width: 1320px;
      margin: 0 auto;
      padding: 0 30px 40px 30px;
      display: grid;
      grid-template-columns: 2fr repeat(3, 1fr);
      gap: 40px;
      border-bottom: 1px solid var(--border-subtle);
    }

    .footer-brand .footer-desc {
      color: var(--text-muted);
      margin-top: 16px;
      font-size: 0.88rem;
      line-height: 1.5;
      max-width: 300px;
    }

    .footer-column h3 {
      font-size: 1rem;
      font-weight: 700;
      margin-bottom: 20px;
    }

    .footer-column ul {
      list-style: none;
    }

    .footer-column ul li {
      margin-bottom: 12px;
      font-size: 0.88rem;
      color: var(--text-muted);
    }

    .footer-column ul li a {
      color: var(--text-muted);
      text-decoration: none;
      transition: color 0.2s ease;
    }

    .footer-column ul li a:hover {
      color: var(--primary-red);
    }

    .footer-bottom {
      text-align: center;
      padding-top: 20px;
      font-size: 0.85rem;
      color: var(--text-muted);
    }

    @media (max-width: 768px) {
      .form-grid, .logistics-grid {
        grid-template-columns: 1fr;
      }
      .full-width {
        grid-column: span 1;
      }
      .footer-container {
        grid-template-columns: 1fr;
      }
      .host-card-form {
        padding: 24px;
      }
    }