* { margin: 0; padding: 0; box-sizing: border-box; }
body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    background: linear-gradient(135deg, var(--gradient-landing-start) 0%, var(--gradient-landing-end) 100%);
    color: var(--color-text-primary);
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
}
.container {
    text-align: center;
    padding: 2rem;
}
h1 {
    font-size: 3rem;
    margin-bottom: 1rem;
    color: var(--color-text-heading);
}
p {
    font-size: 1.25rem;
    margin-bottom: 2rem;
    color: var(--color-text-secondary);
    max-width: 500px;
}
.sign-in-btn {
    display: inline-block;
    background: var(--color-btn-primary-bg);
    color: var(--color-btn-primary-text);
    padding: 0.75rem 1.5rem;
    font-size: 1rem;
    border: none;
    border-radius: 6px;
    cursor: pointer;
    text-decoration: none;
}
.sign-in-btn:hover {
    background: var(--color-btn-primary-bg-hover);
}