/* assets/css/style.css */
:root {
    --bg-color: #0f0f13;
    --text-color: #ffffff;
    --accent-color: #00f3ff; /* Cyan Neon */
    --accent-secondary: #bc13fe; /* Purple Neon */
    --glass-bg: rgba(255, 255, 255, 0.05);
    --glass-border: rgba(255, 255, 255, 0.1);
    --font-main: 'Inter', sans-serif;
    --font-display: 'Orbitron', sans-serif;
}

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

body {
    background-color: var(--bg-color);
    color: var(--text-color);
    font-family: var(--font-main);
    height: 100vh;
    display: flex;
    justify-content: center;
    align-items: center;
    overflow: hidden;
    position: relative;
}

/* Animated Background */
body::before {
    content: '';
    position: absolute;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle at 50% 50%, rgba(188, 19, 254, 0.15), transparent 50%),
                radial-gradient(circle at 0% 0%, rgba(0, 243, 255, 0.1), transparent 40%);
    animation: bg-move 20s linear infinite;
    z-index: -1;
}

@keyframes bg-move {
    0% { transform: translate(-50%, -50%) rotate(0deg); }
    100% { transform: translate(-50%, -50%) rotate(360deg); }
}

.container {
    text-align: center;
    padding: 2rem;
    max-width: 600px;
    width: 100%;
    z-index: 1;
}

/* Glass Card */
.card {
    background: var(--glass-bg);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border: 1px solid var(--glass-border);
    border-radius: 20px;
    padding: 3rem;
    box-shadow: 0 8px 32px 0 rgba(0, 0, 0, 0.37);
    animation: fade-in 1s ease-out;
}

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

h1 {
    font-family: var(--font-display);
    font-size: 3rem;
    margin-bottom: 0.5rem;
    background: linear-gradient(90deg, var(--accent-color), var(--accent-secondary));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    text-transform: uppercase;
    letter-spacing: 2px;
}

.tagline {
    font-size: 1.2rem;
    color: rgba(255, 255, 255, 0.8);
    margin-bottom: 2rem;
}

.description {
    margin-bottom: 2.5rem;
    line-height: 1.6;
    color: rgba(255, 255, 255, 0.6);
}

/* Form */
.subscribe-form {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

input[type="email"] {
    padding: 1rem;
    border-radius: 8px;
    border: 1px solid var(--glass-border);
    background: rgba(0, 0, 0, 0.3);
    color: white;
    font-size: 1rem;
    outline: none;
    transition: border-color 0.3s;
}

input[type="email"]:focus {
    border-color: var(--accent-color);
}

button {
    padding: 1rem;
    border-radius: 8px;
    border: none;
    background: linear-gradient(90deg, var(--accent-color), var(--accent-secondary));
    color: white;
    font-weight: bold;
    font-size: 1rem;
    cursor: pointer;
    text-transform: uppercase;
    letter-spacing: 1px;
    transition: transform 0.2s, box-shadow 0.2s;
}

button:hover {
    transform: translateY(-2px);
    box-shadow: 0 0 15px rgba(0, 243, 255, 0.4);
}

button:active {
    transform: translateY(0);
}

.message {
    margin-top: 1rem;
    font-size: 0.9rem;
    min-height: 1.5em;
}

.success { color: #00ff88; }
.error { color: #ff4d4d; }

/* Responsive */
@media (min-width: 768px) {
    .subscribe-form {
        flex-direction: row;
    }
    input[type="email"] {
        flex: 1;
    }
    h1 {
        font-size: 4rem;
    }
}