/* ============================================
   RESPONSIVE STYLES
   All media queries consolidated by breakpoint
   ============================================ */

/* ============================================
   TABLET - max-width: 1024px
   ============================================ */

@media (max-width: 1024px) {
    /* Header */
    .header-content {
        flex-wrap: wrap;
    }

    .nav {
        order: 3;
        width: 100%;
        justify-content: center;
        flex-wrap: wrap;
    }

    /* Layout */
    .container {
        padding: var(--spacing-lg);
    }

    .section {
        padding: 1.25rem;
    }

    /* Charts */
    .charts-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    /* Time Tracking */
    .time-tracking-wrapper {
        grid-template-columns: 1fr;
    }

    .time-tracking-sidebar {
        flex-direction: row;
    }

    .timer-card,
    .quick-access-card {
        flex: 1;
    }

    /* Stats */
    .stats-bar-content {
        gap: var(--spacing-md);
    }

    .stat-item {
        font-size: 0.9rem;
    }

    /* Dashboard Quick Stats */
    .quick-stats {
        grid-template-columns: repeat(2, 1fr);
    }

    /* Heatmap */
    .heatmap-row {
        grid-template-columns: 40px 1fr 60px;
        gap: var(--spacing-sm);
    }

    .day-sparkline {
        display: none;
    }

    /* Tag Bars */
    .tag-bar {
        grid-template-columns: 120px 1fr 70px 30px;
    }

    /* Forms */
    .form-group {
        margin-bottom: var(--spacing-md);
    }
}

/* ============================================
   MOBILE - max-width: 768px
   ============================================ */

@media (max-width: 768px) {
    /* Show burger menu, hide desktop nav */
    .burger-menu {
        display: flex;
    }

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

    /* Mobile Navigation */
    .nav {
        position: fixed;
        top: 0;
        right: -100%;
        width: 280px;
        height: 100vh;
        background: var(--background);
        padding: 80px var(--spacing-lg) var(--spacing-lg);
        flex-direction: column;
        align-items: stretch;
        gap: var(--spacing-sm);
        transition: right 0.3s ease;
        z-index: 999;
        overflow-y: auto;
        box-shadow: -2px 0 10px rgba(0, 0, 0, 0.1);
    }

    .nav.mobile-active {
        right: 0;
    }

    .nav-link {
        padding: var(--spacing-md);
        border-radius: var(--radius-md);
        text-align: left;
        background: var(--background-secondary);
    }

    .nav-link:hover,
    .nav-link.active {
        background: var(--primary);
        color: white;
    }

    .mobile-user-section {
        display: flex;
    }

    /* Header */
    .header {
        padding: var(--spacing-075) 0;
    }

    .header-content {
        gap: var(--spacing-md);
    }

    .logo-text {
        font-size: 1.25rem;
    }

    /* Stats Bar */
    .stats-bar {
        padding: var(--spacing-075) 0;
    }

    .stats-bar-content {
        flex-wrap: wrap;
        gap: var(--spacing-075);
        padding: 0 var(--spacing-md);
    }

    .stat-item {
        flex: 1 1 calc(50% - var(--spacing-075));
        min-width: 140px;
        font-size: 0.85rem;
        flex-direction: column;
        text-align: center;
        gap: 2px;
    }

    /* Container & Sections */
    .container {
        padding: var(--spacing-md);
    }

    .section {
        padding: var(--spacing-md);
        margin-bottom: var(--spacing-md);
    }

    .section-header {
        flex-direction: column;
        align-items: flex-start;
        gap: var(--spacing-075);
    }

    .section-actions {
        width: 100%;
        flex-wrap: wrap;
    }

    /* Hero */
    .hero h1 {
        font-size: 2rem;
    }

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

    /* Timer */
    .timer-display {
        font-size: 2rem;
    }

    /* Time Tracking */
    .time-tracking-grid {
        grid-template-columns: 1fr;
    }

    .time-tracking-sidebar {
        position: static;
        margin-bottom: var(--spacing-md);
        flex-direction: column;
    }

    .quick-access-grid {
        grid-template-columns: 1fr;
    }

    /* Forms */
    .form-grid {
        grid-template-columns: 1fr;
    }

    .form-row {
        flex-direction: column;
    }

    .form-group {
        width: 100%;
    }

    /* Buttons */
    .btn {
        padding: var(--spacing-075) 1.25rem;
        min-height: 44px;
    }

    .btn-small {
        padding: 0.65rem var(--spacing-md);
        min-height: 40px;
    }

    .section-actions .btn {
        flex: 1 1 auto;
        min-width: 120px;
    }

    /* Entry Cards */
    .entry-card {
        grid-template-columns: 1fr;
        text-align: center;
        padding: 0.875rem;
    }

    /* Cards */
    .cards-grid {
        grid-template-columns: 1fr;
    }

    /* Tables */
    .table-container {
        overflow-x: auto;
        -webkit-overflow-scrolling: touch;
    }

    table {
        font-size: 0.85rem;
    }

    th, td {
        padding: 0.65rem;
    }

    .detail-table {
        display: block;
        overflow-x: auto;
        white-space: nowrap;
    }

    .detail-table thead {
        position: sticky;
        top: 0;
        background: var(--gray-lighter);
        z-index: 1;
    }

    .detail-table th,
    .detail-table td {
        min-width: 80px;
        padding: var(--spacing-sm);
        font-size: 0.8rem;
    }

    .detail-table td:first-child,
    .detail-table th:first-child {
        position: sticky;
        left: 0;
        background: var(--white);
        z-index: 2;
        border-right: 2px solid var(--gray-lighter);
    }

    .detail-table th:first-child {
        background: var(--gray-lighter);
        z-index: 3;
    }

    .detail-table .actions {
        flex-wrap: nowrap;
    }

    /* Charts */
    .charts-grid {
        grid-template-columns: 1fr;
    }

    .chart-container {
        height: 280px;
    }

    /* Filters */
    .filter-bar {
        flex-direction: column;
    }

    .filter-group {
        flex-direction: column;
        align-items: flex-start;
        gap: var(--spacing-075);
    }

    .filter-group select,
    .filter-group .btn,
    .filter-group input {
        width: 100%;
        min-height: 44px;
    }

    /* Week Filter */
    .week-filter-bar {
        flex-direction: column;
        align-items: stretch;
    }

    .week-filter-group {
        justify-content: center;
    }

    .week-filter-bar select {
        min-width: 100px;
        flex: 1;
    }

    /* Views */
    .view-toggle {
        width: 100%;
    }

    .detail-header {
        flex-direction: column;
        gap: var(--spacing-md);
    }

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

    /* Calendar */
    .calendar-grid {
        gap: 2px;
    }

    .calendar-day {
        min-height: 60px;
        padding: 4px;
        font-size: 0.75rem;
    }

    /* Modals */
    .modal-content {
        width: 95%;
        max-width: none;
        margin: var(--spacing-md);
        max-height: calc(100vh - 2rem);
    }

    .modal-header {
        padding: var(--spacing-md);
    }

    .modal-body {
        padding: var(--spacing-md);
    }

    .modal-actions {
        flex-direction: column;
        gap: var(--spacing-075);
    }

    .modal-actions .btn {
        width: 100%;
    }

    /* Notifications */
    #notificationContainer {
        right: 10px;
        left: 10px;
    }

    .notification {
        min-width: unset;
        max-width: unset;
    }

    /* Modal close button */
    .modal-close {
        width: 44px;
        height: 44px;
        font-size: 1.75rem;
        display: flex;
        align-items: center;
        justify-content: center;
    }

    /* Export */
    .export-options {
        grid-template-columns: 1fr;
    }

    /* Project/Client Cards */
    .client-card,
    .project-card {
        padding: var(--spacing-md);
    }

    .client-name {
        font-size: 1rem;
    }

    .client-hours {
        font-size: 1.25rem;
    }

    .trend-sparkline {
        display: none;
    }

    /* Auth */
    .auth-container {
        padding: var(--spacing-lg);
        max-width: 95%;
        margin: var(--spacing-md);
    }

    .auth-buttons {
        flex-direction: column;
    }

    .user-info {
        align-items: center;
        margin-bottom: var(--spacing-sm);
    }

    .user-menu {
        flex-direction: column;
        gap: var(--spacing-xs);
    }

    #darkModeToggleAuth {
        top: 10px;
        right: 10px;
    }

    /* Dashboard */
    .quick-stats {
        grid-template-columns: 1fr;
    }

    .stat-value {
        font-size: 2rem;
    }

    .section-card {
        padding: var(--spacing-md);
    }

    .section-card-header {
        flex-direction: column;
        align-items: flex-start;
        gap: var(--spacing-md);
    }

    .card-controls {
        width: 100%;
        flex-wrap: wrap;
    }

    .sort-select {
        flex: 1;
        min-width: 120px;
    }

    .heatmap-row {
        grid-template-columns: 30px 1fr 50px;
        font-size: 0.8rem;
    }

    .day-sparkline {
        display: none;
    }

    /* Tag Bars */
    .tag-bar {
        grid-template-columns: 100px 1fr 60px;
        gap: var(--spacing-sm);
    }

    .tag-indicator {
        display: none;
    }

    /* Entry Actions */
    .entry-actions .btn {
        padding: var(--spacing-sm) var(--spacing-075);
        min-width: 44px;
    }

    .card-actions .btn {
        flex: 1;
        justify-content: center;
    }

    /* Tags touch targets */
    .tag,
    .tag-pill {
        padding: 6px 12px;
        font-size: 0.8rem;
    }

    .tag-pill-remove {
        width: 20px;
        height: 20px;
        font-size: 14px;
    }

    /* Touch targets */
    .btn,
    .nav-link,
    .mobile-action-btn,
    select,
    input[type="checkbox"],
    input[type="radio"] {
        min-height: 44px;
        min-width: 44px;
    }

    input[type="checkbox"],
    input[type="radio"] {
        width: 22px;
        height: 22px;
    }

    /* Footer */
    .footer {
        padding: 1.25rem var(--spacing-md);
    }

    .footer-content {
        flex-direction: column;
        text-align: center;
        gap: var(--spacing-075);
    }
}

/* ============================================
   SMALL MOBILE - max-width: 480px
   ============================================ */

@media (max-width: 480px) {
    .container {
        padding: var(--spacing-075);
    }

    .section {
        padding: 0.875rem;
    }

    .header-content {
        padding: var(--spacing-sm) var(--spacing-md);
    }

    .logo-text {
        font-size: 1.1rem;
    }

    .nav-link {
        padding: var(--spacing-xs) var(--spacing-sm);
        font-size: 0.8rem;
    }

    .nav {
        width: 260px;
    }

    .user-menu {
        flex-direction: column;
        width: 100%;
    }

    .user-select {
        width: 100%;
    }

    /* Stats */
    .stat-item {
        flex: 1 1 100%;
    }

    .stat-card {
        padding: var(--spacing-md);
    }

    .stat-value {
        font-size: 1.75rem;
    }

    .stat-label {
        font-size: 0.75rem;
    }

    /* Hero */
    .hero-stats {
        grid-template-columns: 1fr;
    }

    /* Timer */
    .timer-display {
        font-size: 1.75rem;
    }

    /* Buttons */
    .btn {
        font-size: 0.95rem;
    }

    /* Tables */
    table {
        font-size: 0.8rem;
    }

    th, td {
        padding: var(--spacing-sm) 0.35rem;
    }

    /* Charts */
    .chart-container {
        height: 240px;
    }

    /* Modal full screen */
    .modal-content {
        width: 100%;
        height: 100vh;
        margin: 0;
        border-radius: 0;
        max-height: 100vh;
    }

    /* Calendar */
    .calendar-day {
        min-height: 50px;
        font-size: 0.7rem;
    }

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

    /* Client Cards */
    .client-header {
        flex-direction: column;
        align-items: flex-start;
        gap: var(--spacing-sm);
    }

    .client-hours {
        font-size: 1.5rem;
    }

    .project-item {
        flex-direction: column;
        align-items: flex-start;
        gap: var(--spacing-sm);
    }
}

/* ============================================
   LANDSCAPE PHONE - max-height: 500px
   ============================================ */

@media (max-height: 500px) and (orientation: landscape) {
    .header {
        padding: var(--spacing-sm) 0;
    }

    .stats-bar {
        padding: var(--spacing-sm) 0;
    }

    .modal-content {
        max-height: 90vh;
    }

    .modal-body {
        padding: var(--spacing-075);
    }
}

/* ============================================
   ENHANCED LANDSCAPE - max-height: 600px
   ============================================ */

@media (max-height: 600px) and (orientation: landscape) {
    .header {
        padding: var(--spacing-sm) var(--spacing-md);
    }

    .header-content {
        padding: 0;
    }

    .logo-text {
        font-size: 1.1rem;
    }

    .stats-bar {
        display: none;
    }

    .main {
        padding-top: 60px;
    }

    .section {
        padding: var(--spacing-md);
    }

    .section-header {
        margin-bottom: var(--spacing-md);
    }

    .section-header h2 {
        font-size: 1.25rem;
    }

    .timer-display {
        font-size: 1.75rem;
    }

    .timer-card {
        padding: var(--spacing-md);
    }

    .form-grid {
        gap: var(--spacing-075);
    }

    .form-group {
        margin-bottom: var(--spacing-sm);
    }

    .modal-content {
        max-height: 85vh;
        padding: var(--spacing-md);
    }

    .modal-header {
        margin-bottom: var(--spacing-075);
    }

    .chart-container,
    .chart-card canvas {
        max-height: 200px;
    }

    .nav {
        width: 50vw;
        max-width: 300px;
        padding-top: 60px;
    }

    .nav-link {
        padding: var(--spacing-075) var(--spacing-md);
        font-size: 0.9rem;
    }

    .entry-card {
        padding: var(--spacing-075);
    }
}

/* ============================================
   RESPONSIVE - Week Timeline (1200px)
   ============================================ */

@media (max-width: 1200px) {
    .week-timeline-container {
        grid-template-columns: repeat(4, 1fr);
    }
}

/* ============================================
   PRINT STYLES
   ============================================ */

@media print {
    .header,
    .nav,
    .user-menu,
    .btn,
    .filter-bar,
    .modal,
    .timer-container,
    .time-entry-form,
    .export-options,
    .footer,
    .filter-bar,
    .section-card-header .card-controls,
    .timeline-actions,
    .btn-expand {
        display: none !important;
    }

    .main {
        padding-top: 0;
    }

    .section {
        padding: var(--spacing-md);
    }

    .chart-card,
    .section-card {
        break-inside: avoid;
        page-break-inside: avoid;
    }

    .stat-card {
        border: 1px solid var(--gray-300);
    }

    .footer-note {
        display: none;
    }
}