:root {
    --bg: #ffffff;
    --text: #000000;
    --text-muted: #666666;
    --accent: #000000;
    --border: #eeeeee;
    --btn-hover: #333333;
    --font-family: 'Inter', -apple-system, blinkmacsystemfont, 'Segoe UI', roboto, oxygen, ubuntu, cantarell, 'Open Sans', 'Helvetica Neue', sans-serif;
}

@media (prefers-color-scheme: dark) {
    :root {
        --bg: #0a0a0a;
        --text: #ffffff;
        --text-muted: #a0a0a0;
        --accent: #ffffff;
        --border: #1a1a1a;
        --btn-hover: #e0e0e0;
    }
}

[data-theme="light"] {
    --bg: #ffffff;
    --text: #000000;
    --text-muted: #666666;
    --accent: #000000;
    --border: #eeeeee;
    --btn-hover: #333333;
}

[data-theme="dark"] {
    --bg: #0a0a0a;
    --text: #ffffff;
    --text-muted: #a0a0a0;
    --accent: #ffffff;
    --border: #1a1a1a;
    --btn-hover: #e0e0e0;
}

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

html,
body {
    height: 100%;
    width: 100%;
    overflow: hidden;
}

body {
    background-color: var(--bg);
    color: var(--text);
    font-family: var(--font-family);
    display: flex;
    align-items: center;
    justify-content: center;
    -webkit-font-smoothing: antialiased;
}

.one-pager {
    width: 100%;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 2rem;
}

.content {
    max-width: 600px;
    width: 100%;
    text-align: center;
}

header {
    margin-bottom: 4rem;
}

.logo {
    font-weight: 900;
    font-size: 1.2rem;
    letter-spacing: -0.05em;
}

.hero h1 {
    font-size: 3.5rem;
    font-weight: 900;
    letter-spacing: -0.04em;
    line-height: 1;
    margin-bottom: 1.5rem;
}

.hero p {
    font-size: 1.25rem;
    color: var(--text-muted);
    margin-bottom: 3rem;
    line-height: 1.5;
}

.actions {
    display: flex;
    gap: 1rem;
    justify-content: center;
    margin-bottom: 4rem;
}

.btn {
    padding: 0.8rem 1.5rem;
    border-radius: 4px;
    text-decoration: none;
    font-weight: 700;
    font-size: 0.9rem;
    transition: background 0.2s;
    background: var(--text);
    color: var(--bg);
}

.btn:hover {
    background: var(--btn-hover);
}

.btn-outline {
    background: transparent;
    color: var(--text);
    border: 1px solid var(--text);
}

.btn-outline:hover {
    background: var(--border);
}

.theme-toggle {
    position: fixed;
    top: 2rem;
    right: 2rem;
    background: transparent;
    border: none;
    color: var(--text);
    cursor: pointer;
    font-size: 1.2rem;
    opacity: 0.5;
    transition: opacity 0.2s;
}

.theme-toggle:hover {
    opacity: 1;
}

.features-lite {
    font-size: 0.9rem;
    font-weight: 700;
    color: var(--text);
    margin-bottom: 2rem;
    text-transform: uppercase;
    letter-spacing: 0.1em;
}

footer {
    font-size: 0.9rem;
    color: var(--text-muted);
}

@media (max-width: 600px) {
    .one-pager {
        overflow-y: auto;
    }

    .hero h1 {
        font-size: 2.5rem;
    }

    .actions {
        flex-direction: column;
    }
}