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

        html, body {
    width: 100vw;
    height: 100vh;
    
    background: #ffffff;
    font-family: sans-serif;
  }

  /* === PANEL ANIMASI (Awal) === */
  .animation-panel {
    position: absolute;
    inset: 0;
    width: 100vw;
    height: 100vh;
    z-index: 10;
    transform: translateX(0);
    transition: transform 0.6s ease-in-out, opacity 0.4s ease;
  }

  /* 🔄 Animasi SLIDE KE KIRI */
  .animation-panel.slide-out {
    transform: translateX(-100%); /* Geser keluar ke kiri */
    opacity: 0;
    pointer-events: none;
  }

  /* Gambar 2 = Latar UTUH */
  .bg-layer {
    position: absolute;
    inset: 0;
    background: url('gambar2.jpg') center/contain no-repeat;
    background-color: #0056b3;
  }

  /* Gambar 1 = Depan + Zoom In */
  .front-layer {
    position: absolute;
    inset: 0;
    background: url('543601341_18526175191029461_7365101778504132698_n.jpg') center/contain no-repeat;
    animation: zoomIn 2s ease-out forwards;
  }

  @keyframes zoomIn {
    0%   { transform: scale(1); }
    100% { transform: scale(0.9); }
  }

        /* Hero Section */
        .hero {
            position: relative;
            height: 400px;
            background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
            display: flex;
            align-items: center;
            justify-content: center;
            overflow: hidden;
        }

        .hero::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            background-image: url('IMG-20260922-WA0004(1).jpg');
            background-size: cover;
            background-position: center;
            opacity: 1;
        }

        .hero-content {
            position: relative;
            z-index: 1;
            text-align: center;
            color: white;
            padding: 20px;
        }

        .hero-content h1 {
            font-size: 3rem;
            margin-bottom: 15px;
            text-shadow: 2px 2px 4px rgba(0,0,0,0.3);
        }

        .hero-content p {
            font-size: 1.2rem;
            max-width: 600px;
            margin: 0 auto;
        }

        /* Form Section */
        .form-section {
            max-width: 600px;
            margin: -50px auto 50px;
            background: white;
            border-radius: 15px;
            box-shadow: 0 10px 40px rgba(0,0,0,0.1);
            padding: 40px;
            position: relative;
            z-index: 2;
            min-height: 400px;
        }

        .form-section h2 {
            color: #333;
            margin-bottom: 30px;
            text-align: center;
            font-size: 1.8rem;
        }

        .form-group {
            margin-bottom: 25px;
        }

        .form-group label {
            display: block;
            margin-bottom: 8px;
            color: #555;
            font-weight: 600;
            font-size: 0.95rem;
        }

        .form-group select,
        .form-group input {
            width: 100%;
            padding: 14px 18px;
            border: 2px solid #e1e5eb;
            border-radius: 10px;
            font-size: 1rem;
            transition: all 0.3s ease;
            background-color: #fafbfc;
        }

        .form-group select:focus,
        .form-group input:focus {
            outline: none;
            border-color: #667eea;
            background-color: white;
            box-shadow: 0 0 0 3px rgba(102, 126, 234, 0.1);
        }

        .form-group select {
            cursor: pointer;
            appearance: none;
            background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'%3E%3Cpath fill='%23667eea' d='M6 9L1 4h10z'/%3E%3C/svg%3E");
            background-repeat: no-repeat;
            background-position: right 15px center;
            padding-right: 40px;
        }

        .btn-lanjut {
            width: 100%;
            padding: 16px;
            background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
            color: white;
            border: none;
            border-radius: 10px;
            font-size: 1.1rem;
            font-weight: 600;
            cursor: pointer;
            transition: all 0.3s ease;
            margin-top: 10px;
        }

        .btn-lanjut:hover:not(:disabled) {
            transform: translateY(-2px);
            box-shadow: 0 8px 20px rgba(102, 126, 234, 0.4);
        }

        .btn-lanjut:active:not(:disabled) {
            transform: translateY(0);
        }

        .btn-lanjut:disabled {
            background: #ccc;
            cursor: not-allowed;
            opacity: 0.6;
        }

        /* Panel Transitions */
        .panel {
            display: none;
            animation: fadeIn 0.5s ease;
        }

        .panel.active {
            display: block;
        }

        @keyframes fadeIn {
            from { opacity: 0; transform: translateX(20px); }
            to { opacity: 1; transform: translateX(0); }
        }

        .divider {
            height: 2px;
            background: linear-gradient(to right, transparent, #667eea, transparent);
            margin: 30px 0;
        }

        .panel-title {
            color: #667eea;
            margin-bottom: 20px;
            font-size: 1.3rem;
            display: flex;
            align-items: center;
            gap: 10px;
        }

        .panel-title::before {
            content: '💳';
            font-size: 1.5rem;
        }
        
        .otp-icon::before {
            content: '🔐';
        }

        .input-hint {
            font-size: 0.85rem;
            color: #888;
            margin-top: 5px;
        }

        .error-message {
            color: #e74c3c;
            font-size: 0.85rem;
            margin-top: 5px;
            display: none;
        }

        .form-group.error input,
        .form-group.error select {
            border-color: #e74c3c;
        }

        .form-group.error .error-message {
            display: block;
        }

        .success-icon {
            color: #27ae60;
            margin-left: 5px;
            display: none;
        }

        .form-group.valid .success-icon {
            display: inline;
        }

        .hidden {
            display: none !important;
        }

        .btn-back {
            background: transparent;
            color: #667eea;
            border: 2px solid #667eea;
            padding: 12px 24px;
            border-radius: 10px;
            font-size: 1rem;
            font-weight: 600;
            cursor: pointer;
            transition: all 0.3s ease;
            margin-bottom: 20px;
            display: inline-flex;
            align-items: center;
            gap: 8px;
        }

        .btn-back:hover {
            background: #667eea;
            color: white;
            transform: translateX(-5px);
        }

        .summary-info {
            background: #f8f9ff;
            padding: 15px;
            border-radius: 10px;
            margin-bottom: 20px;
            border-left: 4px solid #667eea;
        }

        .summary-info p {
            margin: 5px 0;
            color: #555;
            font-size: 0.95rem;
        }

        .summary-info strong {
            color: #333;
        }

        /* OTP Specific Styles */
        .otp-container {
            text-align: center;
            padding: 20px 0;
        }

        .otp-input {
            font-size: 2rem;
            letter-spacing: 10px;
            text-align: center;
            font-weight: bold;
            width: 100%;
            margin-bottom: 20px;
        }

        .timer-display {
            font-size: 1.5rem;
            font-weight: bold;
            color: #667eea;
            margin: 20px 0;
            font-family: monospace;
        }

        .timer-expired {
            color: #e74c3c;
        }

        .resend-link {
            color: #667eea;
            text-decoration: underline;
            cursor: pointer;
            font-size: 0.9rem;
            display: none; /* Hidden by default */
        }
        
        .resend-link:hover {
            color: #764ba2;
        }

        /* Responsive */
        @media (max-width: 768px) {
            .hero { height: 300px; }
            .hero-content h1 { font-size: 2rem; }
            .form-section { margin: -30px 20px 30px; padding: 30px 20px; }
            .grid-2-col { grid-template-columns: 1fr !important; }
        }