:root {
    --color-bg: #ffffff;
    --color-bg-dark: #0f1116;
    --color-primary: #2563ff;
    --color-text: #1e1e1e;
    --color-text-inverse: #ffffff;
}

* {
    box-sizing: border-box;
}

body {
    margin: 0;
    font-family: 'Inter', sans-serif;
    background: var(--color-bg);
    color: var(--color-text);
    display: flex;
    flex-direction: column;
    min-height: 100vh;
}

.header {
    width: 100%;
    padding: 20px 5%;
    display: flex;
    align-items: center;
    justify-content: flex-start;
}

.logo {
    max-height: 36px;
}

.dark-logo {
    display: none;
}

.main {
    flex: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 40px 5%;
}

.hero {
    display: flex;
    align-items: center;
    gap: 60px;
    flex-wrap: wrap;
    max-width: 1200px;
    width: 100%;
}

.hero-text {
    flex: 1 1 360px;
}

.hero-text h1 {
    font-size: 72px;
    margin: 0;
}

.tagline {
    font-size: 24px;
    margin-top: 8px;
    color: var(--color-primary);
    font-weight: 600;
}

.launching {
    font-size: 20px;
    margin: 24px 0;
}

.notify-form {
    display: flex;
    gap: 12px;
    max-width: 480px;
}

.notify-form input {
    flex: 1;
    padding: 12px 16px;
    font-size: 16px;
    border: 1px solid #ccc;
    border-radius: 6px;
}

.notify-form button {
    padding: 12px 24px;
    background: var(--color-primary);
    color: #fff;
    border: none;
    border-radius: 6px;
    font-size: 16px;
    cursor: pointer;
    transition: background 0.2s ease;
}

.notify-form button:hover {
    background: #1c4de6;
}

.notify-form button:disabled {
    opacity: 0.6;
    cursor: not-allowed;
}

.status-message {
    margin-top: 12px;
    font-size: 14px;
    color: var(--color-primary);
}

.hero-image {
    flex: 1 1 420px;
    text-align: center;
}

.hero-image img {
    width: 100%;
    max-width: 560px;
}

.footer {
    text-align: center;
    padding: 20px 0;
    font-size: 14px;
    background: #f7f8fa;
}

@media (prefers-color-scheme: dark) {
    body {
        background: var(--color-bg-dark);
        color: var(--color-text-inverse);
    }

    .footer {
        background: transparent;
    }

    .light-logo {
        display: none;
    }

    .dark-logo {
        display: inline-block;
    }
}

@media (max-width: 768px) {
    .hero-text h1 {
        font-size: 48px;
    }
}