/* Shared Design System for Route Tracker - Matching myTools Style */

:root {
    --primary-color: #2c3e50;
    --secondary-color: #3498db;
    --success-color: #27ae60;
    --warning-color: #f39c12;
    --error-color: #e74c3c;
    --border-radius: 8px;
    --transition: all 0.3s ease;
    
    /* Layer-Based Color System - Light Theme (default) */
    --global-bg: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    --boxes-bg: #ffffff;
    --boxes-bg-secondary: #fafbfc;
    --button-bg: #3498db;
    --text-primary: #2c3e50;
    --text-secondary: #7f8c8d;
    --border-color: #bdc3c7;
    --shadow: 0 2px 10px rgba(0,0,0,0.1);
    --shadow-hover: 0 4px 20px rgba(0,0,0,0.15);
}

/* Dark Theme */
[data-theme="dark"] {
    --global-bg: linear-gradient(135deg, #1a202c 0%, #2d3748 100%);
    --boxes-bg: #4a5568;
    --boxes-bg-secondary: #2d3748;
    --button-bg: #3498db;
    --text-primary: #e2e8f0;
    --text-secondary: #a0aec0;
    --border-color: #4a5568;
    --shadow: 0 2px 10px rgba(0,0,0,0.4);
    --shadow-hover: 0 4px 20px rgba(0,0,0,0.5);
}

/* Reset and Base Styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
    background: var(--global-bg);
    min-height: 100vh;
    color: var(--text-primary);
    line-height: 1.6;
    display: flex;
    flex-direction: column;
}

/* Layout */
.container {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* Header Styles */
.header {
    background: var(--boxes-bg);
    padding: 2rem;
    margin: 2rem 2rem 1rem 2rem;
    border-radius: var(--border-radius);
    box-shadow: var(--shadow);
    display: grid;
    grid-template-columns: 1fr auto 1fr;
    align-items: center;
    flex-shrink: 0;
    color: var(--text-primary);
    min-height: 60px;
}

.header-brand {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    justify-self: start;
}

.header-user {
    justify-self: center;
    text-align: center;
    white-space: nowrap;
}

.header-controls {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    justify-self: end;
    min-width: 200px;
    justify-content: flex-end;
}

.app-icon {
    width: 32px;
    height: 32px;
    object-fit: contain;
}

.brand-name {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--text-primary);
}

.brand-version {
    font-size: 1rem;
    color: var(--text-secondary);
    font-weight: 500;
}

/* Sidebar/Navigation */
.sidebar {
    background: var(--boxes-bg);
    padding: 1rem;
    margin: 0 2rem 1rem 2rem;
    border-radius: var(--border-radius);
    box-shadow: var(--shadow);
    display: flex;
    gap: 0.5rem;
    flex-wrap: wrap;
    flex-shrink: 0;
}

.nav-icon {
    font-style: normal;
    display: none;
}
.nav-label {
    /* visible on desktop */
}

/* Main Content */
.main-content {
    flex: 1;
    margin: 0 2rem 2rem 2rem;
    display: flex;
    flex-direction: column;
}

/* Cards */
.card {
    background: var(--boxes-bg);
    border-radius: var(--border-radius);
    padding: 2rem;
    box-shadow: var(--shadow);
    transition: var(--transition);
    margin-bottom: 2rem;
    color: var(--text-primary);
}

.card:hover {
    box-shadow: var(--shadow-hover);
}

.card-header {
    text-align: center;
    margin-bottom: 2rem;
}

.card-header h2 {
    color: var(--text-primary);
    font-size: 1.8rem;
    margin-bottom: 0.5rem;
}

.card-header h3 {
    color: var(--text-primary);
    font-size: 1.4rem;
    margin-bottom: 0.5rem;
}

.card-header p {
    color: var(--text-secondary);
}

/* Form Elements */
.form-group {
    margin-bottom: 1.5rem;
}

.form-group label {
    display: block;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 0.5rem;
}

.form-input, .form-textarea, .form-select,
input[type="text"],
input[type="email"],
input[type="password"],
textarea,
select {
    width: 100%;
    padding: 0.75rem;
    border: 2px solid var(--border-color);
    border-radius: var(--border-radius);
    font-size: 14px;
    font-family: inherit;
    transition: var(--transition);
    background: var(--boxes-bg-secondary);
    color: var(--text-primary);
}

.form-input:focus, .form-textarea:focus, .form-select:focus,
input:focus, textarea:focus, select:focus {
    outline: none;
    border-color: var(--secondary-color);
    background: var(--boxes-bg);
    box-shadow: 0 0 0 3px rgba(52, 152, 219, 0.1);
}

/* Buttons - Text Only, No Icons */
.btn {
    background: var(--button-bg);
    color: white;
    border: none;
    padding: 0.75rem 1.5rem;
    border-radius: var(--border-radius);
    font-size: 14px;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
    display: inline-block;
    text-decoration: none;
    color: white;
}

.btn:hover {
    background: #2980b9;
    transform: translateY(-2px);
    box-shadow: var(--shadow-hover);
    text-decoration: none;
    color: white;
}

.btn-primary {
    background: var(--button-bg);
}

.btn-primary:hover {
    background: #2980b9;
}

.btn-success {
    background: var(--success-color);
}

.btn-success:hover {
    background: #219a52;
}

.btn-warning {
    background: var(--warning-color);
}

.btn-warning:hover {
    background: #d68910;
}

.btn-danger {
    background: var(--error-color);
}

.btn-danger:hover {
    background: #c0392b;
}

.btn-large {
    width: 100%;
    font-size: 1.1rem;
    padding: 1.25rem 2rem;
}

.btn-small {
    padding: 0.5rem 1rem;
    font-size: 0.9rem;
}

/* Navigation */
.nav {
    display: flex;
    gap: 1rem;
    margin: 1rem 0;
    flex-wrap: wrap;
}

.nav-link, .nav-btn {
    color: var(--text-color);
    text-decoration: none;
    padding: 0.75rem 1.5rem;
    border-radius: var(--border-radius);
    transition: var(--transition);
    font-weight: 500;
    background: transparent;
    border: 2px solid transparent;
    cursor: pointer;
    font-family: inherit;
    font-size: 1rem;
}

.nav-link:hover, .nav-btn:hover {
    background: rgba(52, 152, 219, 0.1);
    color: var(--secondary-color);
    text-decoration: none;
    border-color: var(--secondary-color);
}

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

/* Status Messages */
.alert {
    padding: 1rem;
    border-radius: var(--border-radius);
    font-weight: 500;
    margin-bottom: 1rem;
}

.alert-success, .success-message {
    background: #d4edda;
    color: #155724;
    border: 1px solid #c3e6cb;
}

.alert-error, .error-message {
    background: #f8d7da;
    color: #721c24;
    border: 1px solid #f5c6cb;
}

.alert-warning {
    background: #fff3cd;
    color: #856404;
    border: 1px solid #ffeaa7;
}

.alert-info {
    background: #d1ecf1;
    color: #0c5460;
    border: 1px solid #bee5eb;
}

/* Tables */
.table-container {
    overflow-x: auto;
    margin: 1rem 0;
}

.table,
.users-table {
    width: 100%;
    background: var(--boxes-bg);
    border-radius: var(--border-radius);
    overflow: hidden;
    box-shadow: var(--shadow);
}

.table th,
.table-header {
    background: var(--light-bg);
    padding: 1rem;
    text-align: left;
    font-weight: 600;
    color: var(--primary-color);
    border-bottom: 2px solid var(--border-color);
}

.table td,
.table-row {
    padding: 1rem;
    border-bottom: 1px solid var(--border-color);
    color: var(--text-color);
}

.table tr:last-child td,
.table-row:last-child {
    border-bottom: none;
}

.table tr:hover,
.table-row:hover {
    background: var(--boxes-bg-secondary);
}

/* Grid layout for table rows */
.table-header,
.table-row {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1.5fr;
    gap: 1rem;
    align-items: center;
}

.users-table-with-actions .table-header,
.users-table-with-actions .table-row {
    grid-template-columns: 2fr 1fr 1fr 1.5fr 1fr;
}

.text-muted {
    color: var(--text-muted);
    font-size: 0.85rem;
}

/* Customer list rows */
.customer-list {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

.customer-list-item {
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    padding: 0.55rem 0.75rem;
    background: var(--boxes-bg-secondary);
}

.customer-row-main {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 1rem;
    margin-bottom: 0.2rem;
}

.customer-title {
    font-size: 0.9rem;
    color: var(--text-color);
    word-break: break-word;
}

.customer-actions {
    display: flex;
    gap: 0.5rem;
    flex-wrap: wrap;
}

.customer-row-stats {
    font-size: 0.82rem;
    line-height: 1.1;
    color: var(--text-secondary);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

/* Token list rows */
.tokens-list {
    display: flex;
    flex-direction: column;
    gap: 0.6rem;
}

.token-item {
    display: grid;
    grid-template-columns: 1.2fr 1.8fr 1fr 0.8fr 1.2fr;
    gap: 0.75rem;
    align-items: center;
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    padding: 0.4rem 0.65rem;
    background: var(--boxes-bg-secondary);
}

.token-cell {
    font-size: 0.85rem;
    line-height: 1.1;
    color: var(--text-color);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.token-actions {
    display: flex;
    gap: 0.5rem;
    flex-wrap: nowrap;
    justify-content: flex-start;
}

.token-actions .btn-small {
    padding: 0.2rem 0.45rem;
    font-size: 0.75rem;
    line-height: 1;
    white-space: nowrap;
}

.token-status {
    font-size: 0.82rem;
    line-height: 1.1;
    font-weight: 600;
    white-space: nowrap;
}

.token-status.used {
    color: var(--warning-color);
}

.token-status.available {
    color: var(--success-color);
}

/* Device List */
.device-list {
    display: flex;
    flex-direction: column;
    gap: 0.3rem;
}

.device-item {
    border: 1px solid var(--border-color);
    border-radius: 6px;
    padding: 0.5rem 0.75rem;
}

.device-row-main {
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.device-id-badge {
    font-family: monospace;
    font-size: 0.82rem;
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: 4px;
    padding: 0.1rem 0.4rem;
    white-space: nowrap;
}

.device-name {
    flex: 1;
    font-weight: 500;
    font-size: 0.92rem;
}

.device-actions {
    display: flex;
    gap: 0.3rem;
}

.device-row-stats {
    font-size: 0.78rem;
    color: var(--text-muted);
    margin-top: 0.25rem;
}

/* Route Management */
.device-route-header {
    margin-bottom: 0.8rem;
    font-size: 0.9rem;
}

.device-route-header p {
    margin: 0.25rem 0;
}

.route-month {
    border: 1px solid var(--border-color);
    border-radius: 6px;
    margin-bottom: 0.65rem;
    background: var(--boxes-bg-secondary);
}

.route-month summary {
    cursor: pointer;
    padding: 0.5rem 0.75rem;
    font-weight: 600;
}

.route-day-list {
    padding: 0.5rem 0.75rem 0.75rem;
    border-top: 1px solid var(--border-color);
}

.route-day-item {
    border: 1px solid var(--border-color);
    border-radius: 6px;
    padding: 0.45rem 0.6rem;
    margin-bottom: 0.45rem;
    background: var(--boxes-bg);
}

.route-day-main {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 0.7rem;
}

.route-day-perms {
    margin-top: 0.35rem;
    font-size: 0.82rem;
    color: var(--text-muted);
}

.route-day-actions {
    display: flex;
    gap: 0.75rem;
    flex-shrink: 0;
}

.btn-route-action {
    min-width: 6rem;
    text-align: center;
    background: var(--button-bg);
}

.btn-route-action:hover {
    background: #2980b9;
}

.btn-route-action.btn-grant {
    background: var(--success-color);
}

.btn-route-action.btn-grant:hover {
    background: #219a52;
}

.btn-route-action.btn-revoke {
    background: var(--error-color);
}

.btn-route-action.btn-revoke:hover {
    background: #c0392b;
}

.route-day-desc {
    flex: 1;
    font-size: 0.85rem;
    color: var(--text-muted);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    min-width: 0;
}

.route-distance {
    font-size: 0.8rem;
    font-weight: 600;
    color: var(--text-muted);
    background: var(--boxes-bg-secondary);
    border-radius: 4px;
    padding: 1px 6px;
    white-space: nowrap;
}

/* User dashboard compact shared-routes layout */
.compact-help {
    margin-bottom: 0.45rem;
}

.compact-routes-card {
    padding: 0.8rem 1rem;
}

.shared-routes-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 0.6rem 1rem;
    align-items: end;
}

.compact-form-group {
    margin-bottom: 0;
}

.route-select-inline {
    display: grid;
    grid-template-columns: 1fr auto;
    gap: 0.45rem;
    align-items: center;
}

.compact-route-info {
    display: inline-block;
    margin-top: 0.45rem;
    font-size: 0.82rem;
}

.dashboard-route-map {
    height: 840px;
    border: 1px solid var(--border-color);
    border-radius: 8px;
    overflow: hidden;
    background: var(--boxes-bg-secondary);
}

.map-wrapper {
    position: relative;
    margin-top: 0.8rem;
}

.leaflet-control-zoom-fit {
    font-size: 1rem !important;
    line-height: 26px !important;
    display: block;
    text-align: center;
    text-decoration: none;
    color: #444 !important;
    cursor: pointer;
    border-top: 1px solid #ccc;
}
.leaflet-control-zoom-fit:hover {
    background-color: #f4f4f4;
    color: #111 !important;
}
[data-theme="dark"] .leaflet-control-zoom-fit {
    color: #ccc !important;
    border-top-color: #444;
}
[data-theme="dark"] .leaflet-control-zoom-fit:hover {
    background-color: #3a3a3a;
    color: #fff !important;
}

.map-hint {
    text-align: center;
    font-size: 0.72rem;
    color: var(--text-muted, #888);
    padding: 3px 0 1px;
    user-select: none;
}
.map-hint kbd {
    display: inline-block;
    font-size: 0.68rem;
    font-family: inherit;
    background: var(--boxes-bg-secondary, #e8e8e8);
    border: 1px solid var(--border-color, #ccc);
    border-radius: 3px;
    padding: 0 4px;
    line-height: 1.5;
}

.route-info-overlay {
    position: absolute;
    top: 12px;
    right: 12px;
    z-index: 1000;
    background: rgba(255, 255, 255, 0.78);
    backdrop-filter: blur(6px);
    -webkit-backdrop-filter: blur(6px);
    border-radius: 12px;
    padding: 10px 15px;
    border: 1px solid rgba(0,0,0,0.10);
    box-shadow: 0 3px 12px rgba(0,0,0,0.18);
    pointer-events: none;
    min-width: 130px;
    line-height: 1.5;
}

.map-arrow-config {
    top: auto;
    bottom: 46px;
    pointer-events: all;
    min-width: 110px;
    padding: 8px 12px;
}

.map-config-input {
    width: 60px;
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--text-primary);
    background: transparent;
    border: none;
    border-bottom: 1px solid var(--border-color);
    padding: 0 2px;
    outline: none;
    -moz-appearance: textfield;
}
.map-config-input::-webkit-inner-spin-button,
.map-config-input::-webkit-outer-spin-button { opacity: 0.5; }
[data-theme="dark"] .map-config-input {
    color: #e0e0e0;
    border-bottom-color: rgba(255,255,255,0.25);
}

[data-theme="dark"] .route-info-overlay {
    background: rgba(26, 32, 44, 0.82);
    border-color: rgba(255,255,255,0.12);
}

.route-info-overlay .stat-row {
    display: flex;
    flex-direction: column;
    margin-bottom: 6px;
}

.route-info-overlay .stat-row:last-child {
    margin-bottom: 0;
}

.route-info-overlay .stat-label {
    font-size: 0.68rem;
    text-transform: uppercase;
    letter-spacing: 0.06em;
    color: var(--text-muted);
    opacity: 0.85;
}

.route-info-overlay .stat-value {
    font-size: 0.95rem;
    font-weight: 700;
    color: var(--text-primary);
}

.elevation-profile-container {
    margin-top: 4px;
    border: 1px solid var(--border-color);
    border-radius: 8px;
    overflow: hidden;
    background: var(--boxes-bg-secondary);
    height: 280px;
}

#elevationProfile {
    display: block;
    width: 100%;
    height: 100%;
}

@media (max-width: 768px) {
    .shared-routes-grid {
        grid-template-columns: 1fr;
    }

    .dashboard-route-map {
        height: 600px;
    }
}

@media (max-width: 768px) {
    .customer-row-main {
        flex-direction: column;
        align-items: flex-start;
    }

    .token-item {
        grid-template-columns: 1fr;
        gap: 0.5rem;
    }
}

/* Badge/Pills */
.badge {
    display: inline-block;
    padding: 0.25rem 0.75rem;
    border-radius: 50px;
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.badge-success {
    background: var(--success-color);
    color: white;
}

.badge-warning {
    background: var(--warning-color);
    color: white;
}

.badge-danger {
    background: var(--error-color);
    color: white;
}

.badge-info {
    background: var(--secondary-color);
    color: white;
}

/* Login/Register pages */
.login-container,
.register-container,
.success-container {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 2rem;
}

.login-form,
.register-form,
.success-card {
    background: var(--boxes-bg);
    padding: 3rem;
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-hover);
    width: 100%;
    color: var(--text-primary);
    max-width: 450px;
}

.register-link,
.login-link {
    text-align: center;
    margin-top: 2rem;
    padding-top: 2rem;
    border-top: 1px solid var(--border-color);
}

/* Action buttons container */
.quick-actions {
    display: flex;
    gap: 1rem;
    margin-top: 2rem;
    flex-wrap: wrap;
}

/* Content sections */
.content-section {
    display: none;
    background: var(--boxes-bg);
    border-radius: var(--border-radius);
    padding: 2rem;
    box-shadow: var(--shadow);
    margin-bottom: 2rem;
    color: var(--text-primary);
}

/* Show correct section before JS runs (no flash) */
html[data-section="dashboard"] #dashboard,
html[data-section="users"] #users,
html[data-section="routes"] #routes,
html[data-section="devices"] #devices,
html[data-section="settings"] #settings {
    display: block;
}

.content-section.active {
    display: block;
    animation: fadeIn 0.3s ease;
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(10px); }
    to { opacity: 1; transform: translateY(0); }
}

/* User greeting and controls */
.header-user {
    display: flex;
    align-items: center;
    gap: 2rem;
}

.user-greeting {
    color: var(--text-primary);
    font-weight: 600;
    font-size: 1.1rem;
}

/* Theme Toggle Button */
.theme-toggle {
    background: var(--boxes-bg-secondary);
    color: var(--text-primary);
    border: 2px solid var(--border-color);
    padding: 0.5rem 0.75rem;
    border-radius: var(--border-radius);
    cursor: pointer;
    transition: var(--transition);
    font-size: 0.9rem;
    font-family: inherit;
    white-space: nowrap;
    flex-shrink: 0;
}

.theme-toggle:hover {
    background: var(--button-bg);
    color: white;
    border-color: var(--button-bg);
}

.logout-btn {
    color: var(--text-secondary);
    text-decoration: none;
    padding: 0.5rem 1rem;
    border-radius: var(--border-radius);
    transition: var(--transition);
    font-size: 0.9rem;
    width: 85px;
    text-align: center;
    white-space: nowrap;
    flex-shrink: 0;
}

.logout-btn:hover {
    background: var(--boxes-bg-secondary);
    color: var(--secondary-color);
    text-decoration: none;
}

/* Empty state for lists */
.empty-state {
    text-align: center;
    color: var(--text-secondary);
    padding: 3rem;
    font-style: italic;
}

/* Utility Classes */
.text-center { text-align: center; }
.text-left { text-align: left; }
.text-right { text-align: right; }

.mb-1 { margin-bottom: 0.5rem; }
.mb-2 { margin-bottom: 1rem; }
.mb-3 { margin-bottom: 1.5rem; }
.mb-4 { margin-bottom: 2rem; }

.mt-1 { margin-top: 0.5rem; }
.mt-2 { margin-top: 1rem; }
.mt-3 { margin-top: 1.5rem; }
.mt-4 { margin-top: 2rem; }

.p-1 { padding: 0.5rem; }
.p-2 { padding: 1rem; }
.p-3 { padding: 1.5rem; }
.p-4 { padding: 2rem; }

.d-flex { display: flex; }
.justify-between { justify-content: space-between; }
.justify-center { justify-content: center; }
.align-center { align-items: center; }

.gap-1 { gap: 0.5rem; }
.gap-2 { gap: 1rem; }
.gap-3 { gap: 1.5rem; }

/* Section headers */
.section-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 2rem;
    padding-bottom: 1rem;
    border-bottom: 1px solid var(--border-color);
}

/* Grid layouts */
.grid-2 {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 2rem;
}

.grid-3 {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
}

.content-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(400px, 1fr));
    gap: 2rem;
    margin-bottom: 2rem;
}

/* Language switcher */
.language-switch {
    display: flex;
    gap: 0.5rem;
}

/* Language Switch */
.language-switch {
    display: flex;
    gap: 0.25rem;
    align-items: center;
}

.lang-option {
    width: 32px;
    height: 32px;
    border-radius: 6px;
    cursor: pointer;
    transition: var(--transition);
    display: flex;
    align-items: center;
    justify-content: center;
    border: 2px solid var(--border-color);
    background: var(--boxes-bg);
}

.lang-option:hover {
    border-color: var(--secondary-color);
}

.lang-option.active {
    border-color: var(--secondary-color);
    border-width: 3px;
    background: var(--boxes-bg);
    box-shadow: 0 0 0 1px rgba(52, 152, 219, 0.2);
}

.lang-option.active img {
    /* Keep the flag visible, just add border highlighting */
}

.lang-option img {
    width: 20px;
    height: auto;
}

/* Loading states */
.loading {
    opacity: 0.6;
    pointer-events: none;
}

.spinner {
    display: inline-block;
    width: 20px;
    height: 20px;
    border: 3px solid #f3f3f3;
    border-top: 3px solid var(--secondary-color);
    border-radius: 50%;
    animation: spin 1s linear infinite;
    margin-right: 0.5rem;
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

/* Responsive Design */
@media (max-width: 768px) {
    .container {
        padding: 0 10px;
    }
    
    .header {
        padding: 1.5rem;
        flex-direction: column;
        text-align: center;
        margin: 1rem 1rem 0.5rem 1rem;
    }
    
    .sidebar {
        margin: 0 1rem 0.5rem 1rem;
        justify-content: center;
        padding: 0.5rem;
        gap: 0.25rem;
        flex-wrap: nowrap;
    }
    .nav-label { display: none; }
    .nav-icon { display: inline; }
    .nav-btn { padding: 0.45rem 0.7rem; font-size: 1.2rem; min-width: 0; }
    
    .main-content {
        margin: 0 1rem 1rem 1rem;
    }
    
    .grid-2, .grid-3, .content-grid {
        grid-template-columns: 1fr;
        gap: 1rem;
    }
    
    .card {
        padding: 1.5rem;
    }
    
    .nav, .quick-actions {
        flex-direction: column;
    }
    
    .section-header {
        flex-direction: column;
        gap: 1rem;
        align-items: stretch;
    }
    
    .table-container {
        overflow-x: scroll;
    }
    
    .btn-large {
        font-size: 1rem;
        padding: 1rem 1.5rem;
    }
}

@media (max-width: 480px) {
    .header {
        padding: 1rem;
        margin: 0.5rem;
    }
    
    .sidebar {
        margin: 0 0.5rem 0.5rem 0.5rem;
        padding: 0.4rem;
        gap: 0.2rem;
    }
    
    .main-content {
        margin: 0 0.5rem 0.5rem 0.5rem;
    }
    
    .card {
        padding: 1rem;
        margin-bottom: 1rem;
    }
    
    .form-input, .form-textarea, .form-select, .btn {
        font-size: 16px; /* Prevents zoom on iOS */
    }
}

/* Modal Styles */
.modal {
    display: none;
    position: fixed;
    z-index: 1000;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.5);
    backdrop-filter: blur(5px);
    justify-content: center;
    align-items: center;
    padding: 1rem;
}

.modal-content {
    background: var(--boxes-bg);
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-hover);
    width: 100%;
    max-width: 500px;
    max-height: 90vh;
    overflow-y: auto;
    animation: modalSlideIn 0.3s ease;
}

@keyframes modalSlideIn {
    from {
        opacity: 0;
        transform: translateY(-50px) scale(0.9);
    }
    to {
        opacity: 1;
        transform: translateY(0) scale(1);
    }
}

.modal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1.5rem;
    border-bottom: 1px solid var(--border-color);
}

.modal-header h3 {
    margin: 0;
    color: var(--text-primary);
    font-size: 1.25rem;
}

.modal-close {
    background: none;
    border: none;
    font-size: 1.5rem;
    cursor: pointer;
    color: var(--text-secondary);
    padding: 0;
    width: 30px;
    height: 30px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: var(--transition);
}

.modal-close:hover {
    background: var(--border-color);
    color: var(--text-primary);
}

.modal-body {
    padding: 1.5rem;
}

.modal-footer {
    display: flex;
    justify-content: flex-end;
    gap: 0.75rem;
    padding: 1.5rem;
    border-top: 1px solid var(--border-color);
}

.modal .form-group {
    margin-bottom: 1.25rem;
}

.modal .form-group label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 600;
    color: var(--text-primary);
}

.modal input[type="text"],
.modal input[type="email"],
.modal input[type="password"] {
    width: 100%;
    padding: 0.75rem;
    border: 2px solid var(--border-color);
    border-radius: var(--border-radius);
    background: var(--boxes-bg);
    color: var(--text-primary);
    font-size: 1rem;
    transition: var(--transition);
}

.modal input[type="text"]:focus,
.modal input[type="email"]:focus,
.modal input[type="password"]:focus {
    outline: none;
    border-color: var(--secondary-color);
    box-shadow: 0 0 0 3px rgba(52, 152, 219, 0.1);
}

.modal input[type="checkbox"] {
    margin-right: 0.5rem;
    transform: scale(1.1);
}

/* Modal Error Styles */
.modal-error {
    padding: 0 1.5rem 0.5rem 1.5rem;
    border-top: 1px solid var(--border-color);
    background: rgba(231, 76, 60, 0.05);
}

.modal-error .error-message {
    margin: 0.75rem 0;
    padding: 0.75rem;
    background: rgba(231, 76, 60, 0.1);
    color: #e74c3c;
    border: 1px solid rgba(231, 76, 60, 0.2);
    border-radius: var(--border-radius);
    font-size: 0.9rem;
    line-height: 1.4;
}

[data-theme="dark"] .modal-error .error-message {
    color: #ff6b6b;
    background: rgba(231, 76, 60, 0.15);
    border-color: rgba(231, 76, 60, 0.3);
}

.mb-3 { margin-bottom: 1.5rem; }