* {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
            -webkit-tap-highlight-color: transparent;
            -webkit-touch-callout: none;
        }

        body {
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
            background: #000;
            color: #fff;
            min-height: 100vh;
            overflow-x: hidden;
            position: relative;
            touch-action: manipulation;
        }

        /* Background dengan gradien animasi */
        .bg-gradient {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background: linear-gradient(135deg, #000 0%, #1a0033 25%, #000d1a 50%, #000 75%, #0a0015 100%);
            background-size: 400% 400%;
            animation: gradientShift 15s ease infinite;
            z-index: 0;
        }

        @keyframes gradientShift {
            0%, 100% { background-position: 0% 50%; }
            50% { background-position: 100% 50%; }
        }

        /* Bintang jatuh */
        .stars {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            pointer-events: none;
            z-index: 1;
        }

        .star {
            position: absolute;
            width: 2px;
            height: 2px;
            background: #fff;
            border-radius: 50%;
            box-shadow: 0 0 10px rgba(255, 255, 255, 0.8);
            animation: fall linear infinite;
        }

        @keyframes fall {
            0% {
                transform: translateX(0) translateY(0);
                opacity: 1;
            }
            100% {
                transform: translateX(100px) translateY(100vh);
                opacity: 0;
            }
        }

        /* Container utama */
        .container {
            position: relative;
            z-index: 2;
            max-width: 480px;
            margin: 0 auto;
            padding: 20px;
            min-height: 100vh;
            display: flex;
            align-items: center;
            justify-content: center;
            animation: fadeIn 1.5s ease-out;
        }

        @keyframes fadeIn {
            from {
                opacity: 0;
                transform: translateY(30px);
            }
            to {
                opacity: 1;
                transform: translateY(0);
            }
        }

        /* Card form */
        .form-card {
            background: rgba(10, 10, 30, 0.7);
            backdrop-filter: blur(20px);
            border-radius: 30px;
            padding: 40px 30px;
            border: 1px solid rgba(138, 43, 226, 0.3);
            box-shadow: 
                0 20px 60px rgba(138, 43, 226, 0.3),
                0 0 100px rgba(0, 100, 255, 0.1),
                inset 0 1px 0 rgba(255, 255, 255, 0.1);
            position: relative;
            overflow: hidden;
            animation: cardSlideIn 1s ease-out 0.3s both;
        }

        @keyframes cardSlideIn {
            from {
                opacity: 0;
                transform: scale(0.9) translateY(50px);
            }
            to {
                opacity: 1;
                transform: scale(1) translateY(0);
            }
        }

        .form-card::before {
            content: '';
            position: absolute;
            top: -50%;
            left: -50%;
            width: 200%;
            height: 200%;
            background: linear-gradient(
                45deg,
                transparent,
                rgba(138, 43, 226, 0.1),
                transparent
            );
            animation: shimmer 3s infinite;
        }

        @keyframes shimmer {
            0% { transform: rotate(0deg); }
            100% { transform: rotate(360deg); }
        }

        /* Judul */
        .title {
            font-size: 28px;
            font-weight: 700;
            text-align: center;
            margin-bottom: 10px;
            background: linear-gradient(135deg, #fff 0%, #a78bfa 50%, #60a5fa 100%);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
            animation: titleGlow 2s ease-in-out infinite alternate;
            position: relative;
            z-index: 1;
        }

        @keyframes titleGlow {
            from { filter: drop-shadow(0 0 10px rgba(167, 139, 250, 0.5)); }
            to { filter: drop-shadow(0 0 20px rgba(96, 165, 250, 0.8)); }
        }

        .subtitle {
            text-align: center;
            color: rgba(255, 255, 255, 0.6);
            margin-bottom: 40px;
            font-size: 14px;
            position: relative;
            z-index: 1;
        }

        /* Form group */
        .form-group {
            margin-bottom: 30px;
            position: relative;
            z-index: 1;
            animation: fieldFadeIn 0.8s ease-out both;
        }

        .form-group:nth-child(2) { animation-delay: 0.5s; }
        .form-group:nth-child(3) { animation-delay: 0.7s; }
        .form-group:nth-child(4) { animation-delay: 0.9s; }

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

        label {
            display: block;
            margin-bottom: 10px;
            font-weight: 600;
            font-size: 14px;
            color: #fff;
            text-transform: uppercase;
            letter-spacing: 1px;
        }

        input, textarea {
            width: 100%;
            padding: 15px 20px;
            background: rgba(0, 0, 0, 0.5);
            border: 2px solid rgba(138, 43, 226, 0.3);
            border-radius: 15px;
            color: #fff;
            font-size: 16px;
            transition: all 0.4s ease;
            outline: none;
        }

        input:focus, textarea:focus {
            border-color: rgba(138, 43, 226, 0.8);
            background: rgba(0, 0, 0, 0.7);
            box-shadow: 
                0 0 20px rgba(138, 43, 226, 0.4),
                0 0 40px rgba(96, 165, 250, 0.2);
            transform: translateY(-2px);
        }

        input::placeholder, textarea::placeholder {
            color: rgba(255, 255, 255, 0.3);
        }

        textarea {
            resize: vertical;
            min-height: 100px;
            font-family: inherit;
        }

        /* Tombol */
        .btn-submit {
            width: 100%;
            padding: 18px;
            background: linear-gradient(135deg, #8b5cf6 0%, #6366f1 50%, #3b82f6 100%);
            background-size: 200% 200%;
            border: none;
            border-radius: 15px;
            color: #fff;
            font-size: 18px;
            font-weight: 700;
            text-transform: uppercase;
            letter-spacing: 2px;
            cursor: pointer;
            transition: all 0.4s ease;
            position: relative;
            overflow: hidden;
            z-index: 1;
            animation: buttonFadeIn 1s ease-out 1.1s both;
        }

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

        .btn-submit::before {
            content: '';
            position: absolute;
            top: 0;
            left: -100%;
            width: 100%;
            height: 100%;
            background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.3), transparent);
            transition: left 0.5s;
        }

        .btn-submit:hover:not(:disabled)::before {
            left: 100%;
        }

        .btn-submit:hover:not(:disabled) {
            background-position: 100% 0;
            box-shadow: 
                0 10px 30px rgba(138, 43, 226, 0.5),
                0 0 50px rgba(96, 165, 250, 0.3);
            transform: translateY(-3px);
        }

        .btn-submit:active:not(:disabled) {
            transform: translateY(-1px);
        }

        .btn-submit:disabled {
            background: rgba(100, 100, 100, 0.3);
            cursor: not-allowed;
            opacity: 0.5;
        }

        /* Animasi sukses */
        .success-message {
            display: none;
            text-align: center;
            padding: 20px;
            background: rgba(16, 185, 129, 0.2);
            border: 2px solid rgba(16, 185, 129, 0.5);
            border-radius: 15px;
            margin-top: 20px;
            animation: successPop 0.5s ease-out;
        }

        @keyframes successPop {
            0% {
                opacity: 0;
                transform: scale(0.8);
            }
            50% {
                transform: scale(1.05);
            }
            100% {
                opacity: 1;
                transform: scale(1);
            }
        }

        .success-message.show {
            display: block;
        }

        /* Decorative elements */
        .decoration {
            position: absolute;
            width: 100px;
            height: 100px;
            border-radius: 50%;
            filter: blur(60px);
            opacity: 0.3;
            animation: float 6s ease-in-out infinite;
        }

        .decoration-1 {
            top: -50px;
            left: -50px;
            background: #8b5cf6;
            animation-delay: 0s;
        }

        .decoration-2 {
            bottom: -50px;
            right: -50px;
            background: #3b82f6;
            animation-delay: 3s;
        }

        @keyframes float {
            0%, 100% { transform: translate(0, 0) scale(1); }
            50% { transform: translate(20px, 20px) scale(1.1); }
        }