@media (max-width: 420px) {
    .quick-grid {
        grid-template-columns: repeat(4, minmax(0, 1fr));
        gap: 8px;
    }

    .quick-item {
        min-height: 88px;
    }

    .quick-item strong {
        font-size: 11px;
    }

    .hero-copy h1 {
        font-size: 27px;
    }

    .form-grid-2 {
        grid-template-columns: 1fr;
    }

    .student-profile-card {
        align-items: flex-start;
    }
}

@media (min-width: 481px) {
    .app-canvas {
        min-height: 100vh;
        margin-top: 0;
        margin-bottom: 0;
        border-radius: 0;
    }

    .bottom-nav {
        bottom: 0;
        border-radius: 0;
    }
}