/* ============================================
   CBT Master - Responsive Styles
   ============================================ */

/* ========== Large Screens ========== */
@media (max-width: 1280px) {
    .stats-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .features-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

/* ========== Medium Screens ========== */
@media (max-width: 1024px) {
    .sidebar {
        transform: translateX(-100%);
    }

    .sidebar.open {
        transform: translateX(0);
    }

    .main-content {
        margin-left: 0;
    }

    .menu-toggle {
        display: flex;
        align-items: center;
        justify-content: center;
        width: 40px;
        height: 40px;
        background: transparent;
        border: none;
        color: var(--text-primary);
        font-size: var(--text-xl);
        cursor: pointer;
        border-radius: var(--radius-lg);
    }

    .cbt-container {
        grid-template-columns: 1fr;
    }

    .navigator-panel {
        position: fixed;
        bottom: 0;
        left: 0;
        right: 0;
        border-radius: var(--radius-xl) var(--radius-xl) 0 0;
        z-index: var(--z-fixed);
    }
}

/* ========== Small Screens ========== */
@media (max-width: 768px) {
    :root {
        --text-4xl: 2rem;
        --text-3xl: 1.5rem;
        --text-2xl: 1.25rem;
    }

    .container {
        padding: 0 var(--space-4);
    }

    .page-content {
        padding: var(--space-4);
    }

    .stats-grid {
        grid-template-columns: 1fr;
    }

    .features-grid {
        grid-template-columns: 1fr;
    }

    .results-summary {
        grid-template-columns: repeat(2, 1fr);
    }

    .hero-title {
        font-size: 2.5rem;
    }

    .hero-buttons {
        flex-direction: column;
        align-items: center;
    }

    .auth-card {
        padding: var(--space-6);
    }

    .modal {
        width: 95%;
        max-height: 85vh;
    }

    .question-grid {
        grid-template-columns: repeat(6, 1fr);
    }
}

/* ========== Extra Small Screens ========== */
@media (max-width: 480px) {
    .header {
        padding: var(--space-3) var(--space-4);
    }

    .header-search {
        display: none;
    }

    .header-user-info {
        display: none;
    }

    .btn {
        padding: var(--space-2) var(--space-4);
        font-size: var(--text-xs);
    }

    .btn-lg {
        padding: var(--space-3) var(--space-6);
    }

    .card {
        padding: var(--space-4);
    }

    .stat-card {
        padding: var(--space-4);
    }

    .stat-icon {
        width: 48px;
        height: 48px;
        font-size: var(--text-xl);
    }
}

/* ========== Print Styles ========== */
@media print {

    .sidebar,
    .header,
    .menu-toggle,
    .btn {
        display: none !important;
    }

    .main-content {
        margin-left: 0;
    }

    .page-content {
        padding: 0;
    }

    body {
        background: white;
        color: black;
    }

    .card {
        border: 1px solid #ddd;
        background: white;
    }
}