:root {
    --bg-color: #0d0d0d;
    --text-color: #f1f1f1;
    --accent-color: #bfecac;
    --accent-hover: #98bc89;
    --input-bg: #1a1a1a;
    --input-border: #333;
}

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

body {
    background-color: var(--bg-color);
    color: var(--text-color);
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
    line-height: 1.6;
    height: 100vh;
    display: flex;
    justify-content: center;
    align-items: center;
    text-align: center;
}

.container {
    max-width: 600px;
    padding: 40px 20px;
}

header .logo {
    width: 120px;
    height: auto;
    margin-bottom: 20px;
}

header h1 {
    font-size: 1.2rem;
    font-weight: 800;
    letter-spacing: 2px;
    text-transform: uppercase;
    color: var(--accent-color);
}

main {
    margin: 40px 0;
}

.tagline {
    font-size: 2.5rem;
    font-weight: 800;
    margin-bottom: 20px;
    line-height: 1.2;
}

.description {
    color: #888;
    font-size: 1.1rem;
    margin-bottom: 40px;
}

.input-group {
    display: flex;
    flex-direction: row;
    background: var(--input-bg);
    border: 1px solid var(--input-border);
    border-radius: 8px;
    padding: 8px;
    max-width: 500px;
    margin: 0 auto;
}

input[type="email"] {
    flex: 1;
    background: transparent;
    border: none;
    padding: 12px 16px;
    color: white;
    font-size: 1rem;
    outline: none;
}

button {
    background-color: var(--accent-color);
    color: #000;
    border: none;
    padding: 12px 24px;
    border-radius: 6px;
    font-weight: 600;
    cursor: pointer;
    transition: background 0.2s ease;
}

button:hover {
    background-color: var(--accent-hover);
}

/* Success/Error Message */
.message {
    margin-top: 15px;
    font-size: 0.9rem;
    display: none;
    opacity: 0;
    transition: opacity 0.3s ease;
}

.message.show {
    display: block;
    opacity: 1;
}

.message.success {
    color: var(--accent-color);
}

.message.error {
    color: #ff6b6b;
}

footer {
    margin-top: 60px;
}

.social-links {
    margin-bottom: 20px;
}

.social-icon {
    color: #666;
    text-decoration: none;
    margin: 0 10px;
    font-size: 0.9rem;
    transition: color 0.2s ease;
}

.social-icon:hover {
    color: var(--accent-color);
}

footer p {
    font-size: 0.8rem;
    color: #444;
}

/* Mobile Responsiveness */
@media (max-width: 480px) {
    .tagline {
        font-size: 2rem;
    }

    .input-group {
        flex-direction: column;
        background: transparent;
        border: none;
        padding: 0;
    }

    input[type="email"] {
        background: var(--input-bg);
        border: 1px solid var(--input-border);
        border-radius: 8px;
        margin-bottom: 12px;
        width: 100%;
    }

    button {
        width: 100%;
    }
}