:root {
    --background: #0B1220;
    --surface: #121B2E;
    --border: #253B6B;
    --primary: #5B3DFF;
    --text: #E6E8ED;
    --muted: #8F9BB3;
}

* {
    box-sizing: border-box;
}

body {
    margin: 0;
    min-height: 100vh;
    background: var(--background);
    color: var(--text);
    font-family: Inter, Arial, sans-serif;
}

.container {
    width: min(1100px, calc(100% - 32px));
    margin: 0 auto;
}

.header {
    padding: 40px 0 32px;
    border-bottom: 1px solid var(--border);
    margin-bottom: 32px;
}

.brand {
    font-size: 32px;
    font-weight: 800;
    letter-spacing: -1px;
}

.brand-tip {
    color: var(--text);
}

.brand-lab {
    color: var(--primary);
}

.header p {
    color: var(--muted);
    margin: 8px 0 0;
    font-size: 14px;
}

h1 {
    font-size: 24px;
    margin: 0 0 12px;
}

.muted {
    color: var(--muted);
}