/* =============================================
   CareMind Responsive - Mobile First
   ============================================= */

/* ===== TABLET (768px+) ===== */
@media (min-width: 768px) {
    .page {
        padding: var(--space-8);
        gap: var(--space-8);
    }

    header {
        padding: var(--space-5) var(--space-8);
    }

    .user-greeting {
        display: block;
    }

    .stats-grid {
        grid-template-columns: repeat(3, 1fr);
    }

    .dashboard-stats {
        grid-template-columns: repeat(3, 1fr);
    }

    .medication-list {
        display: grid;
        grid-template-columns: repeat(2, 1fr);
        gap: var(--space-4);
    }

    .biometric-grid {
        grid-template-columns: repeat(4, 1fr);
    }

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

    /* Feeling Grid - Centered */
    .feeling-grid {
        justify-content: center;
    }

    .feeling-btn {
        min-width: 80px;
    }

    /* Chart */
    .chart-canvas-wrapper {
        height: 220px;
    }

    /* Matrix */
    .matrix-cell {
        width: 18px;
        height: 18px;
    }

    /* Login */
    #page-login {
        background: #F0F9FF;
    }

    #page-login .container {
        max-width: 500px;
        background: var(--surface);
        padding: var(--space-10);
        border-radius: var(--radius-xl);
        box-shadow: var(--shadow-lg);
    }

    /* Modal */
    .modal {
        align-items: center;
        padding: var(--space-5);
    }

    .modal-content {
        border-radius: var(--radius-xl);
        max-width: 500px;
    }

    /* Quick Questions */
    .quick-questions {
        flex-direction: row;
        flex-wrap: wrap;
        gap: var(--space-3);
    }

    .quick-question-btn {
        flex: 1;
        min-width: 200px;
    }
}

/* ===== DESKTOP (1024px+) ===== */
@media (min-width: 1024px) {
    body {
        background: #F0F9FF;
    }

    #app-container {
        display: grid;
        grid-template-columns: 260px 1fr;
        max-width: 1400px;
        margin: 0 auto;
        min-height: 100vh;
        background: var(--surface);
        box-shadow: 0 0 60px rgba(0, 0, 0, 0.08);
    }

    .page-wrapper {
        padding-bottom: 0;
        height: 100vh;
        overflow-y: auto;
    }

    .page {
        padding: var(--space-8);
        gap: var(--space-8);
    }

    /* Sidebar */
    .bottom-nav {
        position: static;
        flex-direction: column;
        justify-content: flex-start;
        padding: var(--space-8) var(--space-4);
        background: var(--surface);
        border-top: none;
        border-right: 1px solid var(--border);
        gap: var(--space-2);
        box-shadow: none;
    }

    .bottom-nav::before {
        content: '🩺 CareMind';
        display: block;
        font-size: 1.25rem;
        font-weight: 800;
        color: var(--primary);
        padding: var(--space-4);
        margin-bottom: var(--space-6);
    }

    .nav-btn {
        flex-direction: row;
        justify-content: flex-start;
        padding: var(--space-4) var(--space-5);
        gap: var(--space-3);
        font-size: 0.9rem;
        width: 100%;
    }

    .nav-btn.active {
        background: var(--primary-light);
    }

    .desktop-only {
        display: flex !important;
    }

    /* Header */
    header {
        padding: var(--space-6) var(--space-8);
        background: rgba(255, 255, 255, 0.98);
    }

    /* Grids */
    .stats-grid {
        grid-template-columns: repeat(4, 1fr);
    }

    .dashboard-stats {
        grid-template-columns: repeat(4, 1fr);
    }

    .medication-list {
        grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
        gap: var(--space-5);
    }

    /* Chart */
    .chart-canvas-wrapper {
        height: 260px;
    }

    /* Matrix */
    .matrix-cell {
        width: 20px;
        height: 20px;
    }

    /* Cards hover */
    .card:hover {
        transform: translateY(-2px);
        box-shadow: 0 8px 24px rgba(0, 0, 0, 0.1);
    }

    .medication-item:hover {
        transform: translateY(-1px);
        box-shadow: var(--shadow-md);
    }

    /* Split Login Desktop Override */
    #page-login {
        padding: 0 !important;
        position: fixed;
        width: 100vw;
        height: 100vh;
        z-index: 9999;
        left: 0;
        top: 0;
    }

    .login-wrapper {
        flex-direction: row;
    }

    .login-brand-col {
        display: flex;
        flex: 1;
    }

    .login-form-col {
        flex: 1;
        background: white;
    }

    .mobile-only {
        display: none !important;
    }

    .auth-container {
        box-shadow: none;
        max-width: 480px;
        padding: 0;
    }
}

/* ===== LARGE DESKTOP (1440px+) ===== */
@media (min-width: 1440px) {
    #app-container {
        grid-template-columns: 280px 1fr;
        max-width: 1600px;
    }

    /* Scale up interface for large screens */
    html {
        font-size: 18px;
    }

    .page {
        padding: var(--space-10);
        max-width: 1200px;
    }

    .medication-list {
        grid-template-columns: repeat(3, 1fr);
    }
}