:root{
    --brand:#12C9D4;
    --text:#1a1a1a;
    --muted:#6b6f76;
    --line:#e9edf2;
    --focus:rgba(18,201,212,.18);
    --bg:#ffffff;
}

*{box-sizing:border-box}

html, body {
    height: 100%;
    margin: 0;
    display: flex;
    flex-direction: column;
}

body {
    font-family: Poppins, system-ui, -apple-system, Segoe UI, Roboto, Arial, sans-serif;
    color: var(--text-primary, var(--text));
    background: var(--bg-secondary, var(--bg));
    padding-top : 120px;
    transition: background-color 0.3s ease, color 0.3s ease;
}

main {
    flex: 1;
    display: flex;
    flex-direction: column;
}

.container {
    max-width: 1100px;
    margin: 0 auto;
    padding: 0 16px;
}