:root {
    font-size: 14px;
}

body {
    background-color: #f0f2f5;
    min-height: 100vh;
}

/* ── Header ── */
.app-header {
    background: #2c3e50;
    padding: 1rem 2rem;
    box-shadow: 0 2px 10px rgba(0, 0, 0, .3);
}

.app-header .brand {
    font-size: 1.25rem;
    font-weight: 700;
    color: #e94560;
    letter-spacing: .05em;
    text-decoration: none;
}

.app-header .nav-link {
    color: #ecf0f1;
    font-weight: 500;
    text-decoration: none;
    transition: color 0.2s;
}

.app-header .nav-link:hover {
    color: #3498db;
}