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

body {
    height: 100vh;
    display: flex;
    justify-content: center;
    align-items: center;
    background: #0f0c29;
    background: linear-gradient(45deg, #0f0c29, #302b63, #24243e);
    overflow: hidden;
}

.glass-card {
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(15px);
    border: 1px solid rgba(255, 255, 255, 0.2);
    padding: 40px;
    border-radius: 20px;
    text-align: center;
    color: white;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.37);
    width: 350px;
    animation: fadeIn 1s ease-in-out;
}

h2 { margin-bottom: 10px; font-size: 2rem; }
p { margin-bottom: 25px; opacity: 0.8; }

.input-group input {
    width: 100%;
    padding: 12px;
    margin-bottom: 15px;
    border: none;
    border-radius: 8px;
    background: rgba(255, 255, 255, 0.2);
    color: white;
    outline: none;
}

.input-group input::placeholder { color: #ddd; }

.btn-glow {
    width: 100%;
    padding: 12px;
    border: none;
    border-radius: 8px;
    background: linear-gradient(45deg, #ff00cc, #3333ff);
    color: white;
    font-weight: bold;
    cursor: pointer;
    transition: 0.3s;
}

.btn-glow:hover {
    transform: scale(1.05);
    box-shadow: 0 0 15px rgba(255, 0, 204, 0.6);
}

.hidden { display: none; }

.error-msg { color: #ff4d4d; margin-top: 10px; font-size: 0.9rem; }

#success-box {
    margin-top: 20px;
    color: #00ff88;
    animation: bounce 0.5s ease;
}

.success-icon {
    font-size: 3rem;
    margin-bottom: 5px;
}

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

@keyframes bounce {
    0%, 100% { transform: scale(1); }
    50% { transform: scale(1.1); }
}