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

body {
    font-family: 'Arial', sans-serif;
    background: linear-gradient(135deg, #1a0033 0%, #0d001a 100%);
    min-height: 100vh;
    display: flex;
    justify-content: center;
    align-items: center;
    overflow: hidden;
    position: relative;
}

#particles {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 1;
}

.particle {
    position: absolute;
    width: 4px;
    height: 4px;
    border-radius: 50%;
    pointer-events: none;
}

.container {
    position: relative;
    z-index: 2;
    background: rgba(30, 0, 50, 0.6);
    backdrop-filter: blur(10px);
    border: 2px solid rgba(0, 217, 255, 0.3);
    border-radius: 20px;
    padding: 50px 40px;
    width: 90%;
    max-width: 400px;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.5),
                0 0 40px rgba(0, 217, 255, 0.3),
                inset 0 0 30px rgba(0, 217, 255, 0.1);
    animation: glowBorder 3s ease-in-out infinite;
}

@keyframes glowBorder {
    0%, 100% {
        border-color: rgba(0, 217, 255, 0.4);
        box-shadow: 0 20px 60px rgba(0, 0, 0, 0.5),
                    0 0 40px rgba(0, 217, 255, 0.3),
                    inset 0 0 30px rgba(0, 217, 255, 0.1);
    }
    50% {
        border-color: rgba(255, 0, 255, 0.5);
        box-shadow: 0 20px 60px rgba(0, 0, 0, 0.5),
                    0 0 50px rgba(255, 0, 255, 0.4),
                    inset 0 0 40px rgba(255, 0, 255, 0.15);
    }
}

h1 {
    text-align: center;
    font-size: 2rem;
    margin-bottom: 40px;
    background: linear-gradient(90deg, #00d9ff 0%, #ff00ff 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    text-transform: uppercase;
    letter-spacing: 3px;
    font-weight: bold;
}

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

input {
    width: 100%;
    padding: 15px 20px;
    background: rgba(50, 50, 70, 0.5);
    border: 2px solid rgba(100, 100, 120, 0.3);
    border-radius: 10px;
    color: #fff;
    font-size: 16px;
    transition: all 0.3s ease;
    outline: none;
}

input:focus {
    border-color: #00d9ff;
    box-shadow: 0 0 20px rgba(0, 217, 255, 0.3);
}

input::placeholder {
    color: rgba(255, 255, 255, 0.5);
}

.btn {
    width: 100%;
    padding: 15px;
    margin-top: 10px;
    background: linear-gradient(90deg, #00d9ff 0%, #ff00ff 100%);
    border: none;
    border-radius: 10px;
    color: #fff;
    font-size: 18px;
    font-weight: bold;
    text-transform: uppercase;
    letter-spacing: 2px;
    cursor: pointer;
    transition: all 0.3s ease;
    box-shadow: 0 5px 25px rgba(0, 217, 255, 0.4);
}

.btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 35px rgba(0, 217, 255, 0.6);
}

.btn:active {
    transform: translateY(0);
}

.register-link {
    text-align: center;
    margin-top: 25px;
    color: rgba(255, 255, 255, 0.7);
    font-size: 14px;
}

.register-link a {
    color: #00d9ff;
    text-decoration: none;
    font-weight: bold;
    transition: all 0.3s ease;
}

.register-link a:hover {
    color: #ff00ff;
    text-shadow: 0 0 10px rgba(0, 217, 255, 0.5);
}

/* Custom Modal Styles */
.modal {
    display: none;
    position: fixed;
    z-index: 1000;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.7);
    backdrop-filter: blur(5px);
    animation: fadeIn 0.3s ease;
}

.modal.show {
    display: flex;
    justify-content: center;
    align-items: center;
}

.modal-content {
    background: linear-gradient(135deg, rgba(30, 0, 50, 0.95) 0%, rgba(50, 0, 80, 0.95) 100%);
    /* Border diubah menjadi lebih terang */
    border: 2px solid rgba(0, 217, 255, 0.3);
    border-radius: 20px;
    padding: 40px 30px;
    text-align: center;
    max-width: 400px;
    width: 90%;
    /* Box shadow ditambahkan efek neon (luar dan dalam) */
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.5),
                0 0 40px rgba(0, 217, 255, 0.3),
                inset 0 0 30px rgba(0, 217, 255, 0.1);
    /* Animasi digabungkan: slideIn untuk muncul, glowBorder untuk efek neon berkedip */
    animation: slideIn 0.3s ease, glowBorder 3s ease-in-out infinite;
}

.modal-icon {
    width: 80px;
    height: 80px;
    margin: 0 auto 20px;
    border-radius: 50%;
    display: flex;
    justify-content: center;
    align-items: center;
    font-size: 40px;
}

.modal-icon.success {
    background: linear-gradient(135deg, #00d9ff 0%, #00ff88 100%);
    box-shadow: 0 0 30px rgba(0, 217, 255, 0.6);
}

.modal-icon.success::before {
    content: "✓";
    color: #fff;
}

.modal-icon.error {
    background: linear-gradient(135deg, #ff0080 0%, #ff00ff 100%);
    box-shadow: 0 0 30px rgba(255, 0, 128, 0.6);
}

.modal-icon.error::before {
    content: "✕";
    color: #fff;
}

.modal-content h2 {
    color: #fff;
    font-size: 1.8rem;
    margin-bottom: 15px;
    background: linear-gradient(90deg, #00d9ff 0%, #ff00ff 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.modal-content p {
    color: rgba(255, 255, 255, 0.8);
    font-size: 1rem;
    margin-bottom: 30px;
    line-height: 1.5;
}

.modal-btn {
    padding: 12px 50px;
    background: linear-gradient(90deg, #00d9ff 0%, #ff00ff 100%);
    border: none;
    border-radius: 10px;
    color: #fff;
    font-size: 16px;
    font-weight: bold;
    text-transform: uppercase;
    letter-spacing: 2px;
    cursor: pointer;
    transition: all 0.3s ease;
    box-shadow: 0 5px 25px rgba(0, 217, 255, 0.4);
}

.modal-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 35px rgba(0, 217, 255, 0.6);
}

.modal-btn:active {
    transform: translateY(0);
}

@keyframes fadeIn {
    from {
        opacity: 0;
    }
    to {
        opacity: 1;
    }
}

@keyframes slideIn {
    from {
        transform: translateY(-50px);
        opacity: 0;
    }
    to {
        transform: translateY(0);
        opacity: 1;
    }
}

/* Autocomplete/Datalist Styling */
input::-webkit-calendar-picker-indicator {
    filter: invert(1);
}

/* Styling untuk browser autocomplete */
input:-webkit-autofill,
input:-webkit-autofill:hover,
input:-webkit-autofill:focus {
    -webkit-text-fill-color: #fff;
    -webkit-box-shadow: 0 0 0px 1000px rgba(50, 50, 70, 0.5) inset;
    transition: background-color 5000s ease-in-out 0s;
    border: 2px solid rgba(100, 100, 120, 0.3);
}

input:-webkit-autofill:focus {
    border-color: #00d9ff;
}

/* Styling untuk datalist dropdown - terbatas karena browser restrictions */
datalist {
    background-color: rgba(30, 0, 50, 0.95);
}

option {
    background-color: rgba(30, 0, 50, 0.95);
    color: #fff;
    padding: 10px;
}

/* Untuk Firefox */
input::-moz-list-thumbnail {
    background-color: rgba(30, 0, 50, 0.95);
}

/* Custom styling untuk dropdown suggestion */
input[list]::-webkit-list-button {
    color: #00d9ff;
}

@media (max-width: 480px) {
    .container {
        padding: 30px 20px;
    }

    h1 {
        font-size: 1.4rem;
        letter-spacing: 1.5px;
        margin-bottom: 25px;
    }

    input {
        padding: 10px 14px;
        font-size: 14px;
    }

    .btn {
        padding: 12px;
        font-size: 15px;
        letter-spacing: 1px;
    }

    .register-link {
        font-size: 12px;
        margin-top: 20px;
    }

    .modal-icon {
        width: 60px;
        height: 60px;
        font-size: 30px;
    }

    .modal-content h2 {
        font-size: 1.3rem;
    }

    .modal-content p {
        font-size: 0.9rem;
    }
}

@media (max-width: 360px) {
    .container {
        padding: 25px 15px;
    }

    h1 {
        font-size: 1.2rem;
    }

    input {
        padding: 10px 12px;
        font-size: 13px;
    }

    .btn {
        font-size: 14px;
    }
}