/* ==================== ROOT VARIABLES ==================== */
:root {
    /* Colors */
    --primary: #7A1F2B;
    --primary-dark: #5a1720;
    --primary-light: #9e2d3c;
    --secondary: #FFD700;
    --secondary-dark: #ccac00;
    --success: #2E7D32;
    --danger: #C62828;
    --warning: #ED6C02;
    --info: #0288D1;
    --dark: #1a1a1a;
    --light: #f5f5f5;
    --gray: #9e9e9e;
    --white: #ffffff;
    
    /* Dark theme (default) */
    --bg-primary: #121212;
    --bg-secondary: #1E1E1E;
    --bg-card: #1E1E1E;
    --text-primary: #E0E0E0;
    --text-secondary: #B0B0B0;
    --border: #333333;
    
    /* Spacing */
    --spacing-xs: 4px;
    --spacing-sm: 8px;
    --spacing-md: 16px;
    --spacing-lg: 24px;
    --spacing-xl: 32px;
    
    /* Border radius */
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 16px;
    --radius-xl: 24px;
    
    /* Shadows */
    --shadow-sm: 0 2px 4px rgba(0,0,0,0.1);
    --shadow-md: 0 4px 8px rgba(0,0,0,0.2);
    --shadow-lg: 0 8px 16px rgba(0,0,0,0.3);
    --shadow-xl: 0 12px 24px rgba(0,0,0,0.4);
    
    /* Transitions */
    --transition-fast: 0.15s ease;
    --transition-normal: 0.25s ease;
    --transition-slow: 0.4s ease;
}

/* Light theme */
@media (prefers-color-scheme: light) {
    :root {
        --bg-primary: #f5f5f5;
        --bg-secondary: #ffffff;
        --bg-card: #ffffff;
        --text-primary: #212121;
        --text-secondary: #757575;
        --border: #e0e0e0;
    }
}

/* ==================== RESET & BASE ==================== */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    font-size: 16px;
    -webkit-tap-highlight-color: transparent;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    background-color: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.5;
    min-height: 100vh;
}

/* ==================== TYPOGRAPHY ==================== */
h1, h2, h3, h4, h5, h6 {
    font-weight: 600;
    line-height: 1.2;
    margin-bottom: var(--spacing-sm);
}

h1 { font-size: 1.75rem; }
h2 { font-size: 1.5rem; }
h3 { font-size: 1.25rem; }
h4 { font-size: 1.1rem; }

a {
    color: var(--primary);
    text-decoration: none;
    transition: color var(--transition-fast);
}

a:hover {
    color: var(--primary-light);
}

/* ==================== BUTTONS ==================== */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-sm);
    padding: 12px 20px;
    border: none;
    border-radius: var(--radius-md);
    font-size: 0.9rem;
    font-weight: 500;
    cursor: pointer;
    transition: all var(--transition-fast);
    text-decoration: none;
    background: var(--bg-secondary);
    color: var(--text-primary);
    border: 1px solid var(--border);
}

.btn-primary {
    background: var(--primary);
    color: white;
    border: none;
}

.btn-primary:hover {
    background: var(--primary-dark);
    transform: translateY(-1px);
}

.btn-secondary {
    background: var(--secondary);
    color: var(--dark);
    border: none;
}

.btn-secondary:hover {
    background: var(--secondary-dark);
}

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

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

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

.btn-outline {
    background: transparent;
    border: 1px solid var(--primary);
    color: var(--primary);
}

.btn-outline:hover {
    background: var(--primary);
    color: white;
}

.btn-sm {
    padding: 6px 12px;
    font-size: 0.8rem;
}

.btn-block {
    width: 100%;
    display: flex;
}

.btn:active {
    transform: scale(0.97);
}

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

.form-label {
    display: block;
    margin-bottom: var(--spacing-xs);
    font-weight: 500;
    font-size: 0.85rem;
    color: var(--text-secondary);
}

.form-input,
.form-select,
.form-textarea {
    width: 100%;
    padding: 12px 14px;
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    font-size: 1rem;
    background: var(--bg-secondary);
    color: var(--text-primary);
    transition: all var(--transition-fast);
}

.form-input:focus,
.form-select:focus,
.form-textarea:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(122, 31, 43, 0.2);
}

.form-input::placeholder {
    color: var(--gray);
}

/* ==================== CARDS ==================== */
.card {
    background: var(--bg-card);
    border-radius: var(--radius-lg);
    padding: var(--spacing-lg);
    margin-bottom: var(--spacing-md);
    border: 1px solid var(--border);
    transition: all var(--transition-normal);
}

.card:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.card-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--spacing-md);
    padding-bottom: var(--spacing-sm);
    border-bottom: 1px solid var(--border);
}

.card-title {
    font-size: 1.1rem;
    font-weight: 600;
}

.card-body {
    margin-bottom: var(--spacing-md);
}

.card-footer {
    padding-top: var(--spacing-md);
    border-top: 1px solid var(--border);
}

/* ==================== GRID & LAYOUT ==================== */
.container {
    max-width: 600px;
    margin: 0 auto;
    padding: var(--spacing-md);
}

.row {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-md);
}

.col {
    flex: 1;
    min-width: 0;
}

.col-2 { flex: 2; }
.col-3 { flex: 3; }
.col-4 { flex: 4; }

.grid-2 {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--spacing-md);
}

.grid-3 {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--spacing-md);
}

/* ==================== STAT CARDS (Dashboard) ==================== */
.stat-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-lg);
}

.stat-card {
    background: var(--bg-card);
    border-radius: var(--radius-lg);
    padding: var(--spacing-md);
    text-align: center;
    border: 1px solid var(--border);
    transition: all var(--transition-normal);
    cursor: pointer;
}

.stat-card:active {
    transform: scale(0.97);
}

.stat-value {
    font-size: 1.75rem;
    font-weight: 700;
    color: var(--primary);
}

.stat-label {
    font-size: 0.75rem;
    color: var(--text-secondary);
    margin-top: var(--spacing-xs);
}

/* ==================== SERVICES GRID ==================== */
.services-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-lg);
}

.service-card {
    background: var(--bg-card);
    border-radius: var(--radius-lg);
    padding: var(--spacing-md);
    border: 1px solid var(--border);
    transition: all var(--transition-normal);
}

.service-card h3 {
    margin-bottom: var(--spacing-sm);
    font-size: 1rem;
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.service-buttons {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-sm);
    margin-top: var(--spacing-md);
}

.service-buttons .btn {
    flex: 1;
    min-width: 80px;
    font-size: 0.75rem;
    padding: 8px 12px;
}

/* ==================== TABLES ==================== */
.table-container {
    overflow-x: auto;
    margin: var(--spacing-md) 0;
}

.table {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.85rem;
}

.table th,
.table td {
    padding: 12px 8px;
    text-align: left;
    border-bottom: 1px solid var(--border);
}

.table th {
    font-weight: 600;
    color: var(--text-secondary);
    font-size: 0.75rem;
    text-transform: uppercase;
}

.table tr:active {
    background: rgba(122, 31, 43, 0.1);
}

/* ==================== HEADER & NAVIGATION ==================== */
.header {
    position: sticky;
    top: 0;
    z-index: 100;
    background: var(--bg-secondary);
    border-bottom: 1px solid var(--border);
    padding: var(--spacing-sm) var(--spacing-md);
}

.header-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    max-width: 600px;
    margin: 0 auto;
}

.header-left {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
}

.logo {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    font-weight: 700;
    font-size: 1.2rem;
    cursor: pointer;
}

.logo-icon {
    width: 32px;
    height: 32px;
    background: var(--primary);
    border-radius: var(--radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-weight: bold;
}

.logo-text span {
    color: var(--secondary);
}

.header-actions {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.icon-btn {
    background: transparent;
    border: none;
    font-size: 1.25rem;
    cursor: pointer;
    padding: 8px;
    border-radius: var(--radius-sm);
    transition: background var(--transition-fast);
    color: var(--text-primary);
}

.icon-btn:hover {
    background: rgba(122, 31, 43, 0.1);
}

.icon-btn:active {
    transform: scale(0.95);
}

/* ==================== SIDEBAR ==================== */
.sidebar {
    position: fixed;
    top: 0;
    left: -280px;
    width: 280px;
    height: 100%;
    background: var(--bg-secondary);
    z-index: 200;
    transition: left var(--transition-normal);
    box-shadow: var(--shadow-lg);
    overflow-y: auto;
}

.sidebar.open {
    left: 0;
}

.sidebar-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--spacing-md);
    border-bottom: 1px solid var(--border);
}

.sidebar-nav {
    display: flex;
    flex-direction: column;
    padding: var(--spacing-md);
    gap: var(--spacing-sm);
}

.sidebar-nav a {
    padding: 12px 16px;
    border-radius: var(--radius-md);
    transition: all var(--transition-fast);
    color: var(--text-primary);
}

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

.overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0,0,0,0.5);
    z-index: 150;
    display: none;
}

.overlay.active {
    display: block;
}

/* ==================== MODALS ==================== */
.modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0,0,0,0.7);
    z-index: 300;
    align-items: center;
    justify-content: center;
    padding: var(--spacing-md);
}

.modal.active {
    display: flex;
}

.modal-content {
    background: var(--bg-secondary);
    border-radius: var(--radius-lg);
    max-width: 500px;
    width: 100%;
    max-height: 90vh;
    overflow-y: auto;
    animation: modalSlideIn var(--transition-normal);
}

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

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

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

.modal-footer {
    display: flex;
    justify-content: flex-end;
    gap: var(--spacing-sm);
    padding: var(--spacing-md);
    border-top: 1px solid var(--border);
}

/* ==================== LOGIN PAGE ==================== */
.login-container {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: var(--spacing-lg);
    background: linear-gradient(135deg, var(--primary-dark) 0%, var(--dark) 100%);
}

.login-card {
    background: var(--bg-card);
    border-radius: var(--radius-xl);
    padding: var(--spacing-xl);
    max-width: 400px;
    width: 100%;
    box-shadow: var(--shadow-xl);
}

.login-header {
    text-align: center;
    margin-bottom: var(--spacing-lg);
}

.login-logo {
    font-size: 3rem;
    margin-bottom: var(--spacing-sm);
}

.login-title {
    font-size: 1.75rem;
    margin-bottom: var(--spacing-xs);
}

.login-subtitle {
    color: var(--text-secondary);
    font-size: 0.85rem;
}

/* ==================== LOADING OVERLAY ==================== */
.loading-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0,0,0,0.8);
    z-index: 1000;
    display: flex;
    align-items: center;
    justify-content: center;
}

.spinner {
    width: 50px;
    height: 50px;
    border: 4px solid var(--border);
    border-top-color: var(--primary);
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

@keyframes spin {
    to { transform: rotate(360deg); }
}

/* ==================== TOAST NOTIFICATIONS ==================== */
.toast-notification {
    position: fixed;
    bottom: 20px;
    left: 50%;
    transform: translateX(-50%);
    background: var(--bg-secondary);
    color: var(--text-primary);
    padding: 12px 20px;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
    z-index: 1100;
    animation: toastSlideUp var(--transition-normal);
    border-left: 4px solid var(--primary);
    max-width: 90%;
    text-align: center;
}

@keyframes toastSlideUp {
    from {
        opacity: 0;
        transform: translateX(-50%) translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateX(-50%) translateY(0);
    }
}

/* ==================== OFFLINE BANNER ==================== */
.offline-banner {
    background: var(--warning);
    color: white;
    text-align: center;
    padding: var(--spacing-sm);
    font-size: 0.8rem;
    position: sticky;
    top: 0;
    z-index: 95;
}

/* ==================== SECTION TITLES ==================== */
.section-title {
    font-size: 1rem;
    font-weight: 600;
    margin: var(--spacing-lg) 0 var(--spacing-md);
    padding-left: var(--spacing-sm);
    border-left: 3px solid var(--primary);
}

/* ==================== DASHBOARD HEADER ==================== */
.dashboard-header {
    margin-bottom: var(--spacing-lg);
}

.dashboard-header h2 {
    margin-bottom: var(--spacing-xs);
}

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

/* ==================== TEXT UTILITIES ==================== */
.text-center { text-align: center; }
.text-left { text-align: left; }
.text-right { text-align: right; }

.text-success { color: var(--success); }
.text-danger { color: var(--danger); }
.text-warning { color: var(--warning); }
.text-muted { color: var(--text-secondary); }

.mt-1 { margin-top: var(--spacing-xs); }
.mt-2 { margin-top: var(--spacing-sm); }
.mt-3 { margin-top: var(--spacing-md); }
.mt-4 { margin-top: var(--spacing-lg); }

.mb-1 { margin-bottom: var(--spacing-xs); }
.mb-2 { margin-bottom: var(--spacing-sm); }
.mb-3 { margin-bottom: var(--spacing-md); }
.mb-4 { margin-bottom: var(--spacing-lg); }

.p-1 { padding: var(--spacing-xs); }
.p-2 { padding: var(--spacing-sm); }
.p-3 { padding: var(--spacing-md); }
.p-4 { padding: var(--spacing-lg); }

/* ==================== RESPONSIVE ==================== */
@media (min-width: 768px) {
    .container {
        max-width: 800px;
    }
    
    .stat-grid {
        grid-template-columns: repeat(4, 1fr);
    }
    
    .services-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .hide-mobile {
        display: inline;
    }
}

@media (max-width: 480px) {
    .grid-2, .grid-3 {
        grid-template-columns: 1fr;
    }
    
    .stat-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .btn {
        padding: 10px 16px;
    }
    
    .card {
        padding: var(--spacing-md);
    }
    
    .login-card {
        padding: var(--spacing-lg);
    }
}

/* ==================== ANIMATIONS ==================== */
@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

.fade-in {
    animation: fadeIn var(--transition-normal);
}

@keyframes slideIn {
    from {
        opacity: 0;
        transform: translateX(-20px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

.slide-in {
    animation: slideIn var(--transition-normal);
}

/* ==================== BADGE ==================== */
.badge {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 20px;
    height: 20px;
    background: var(--danger);
    color: white;
    border-radius: 10px;
    font-size: 0.7rem;
    font-weight: bold;
    padding: 0 6px;
}

/* ==================== FLOATING ACTION BUTTON ==================== */
.fab {
    position: fixed;
    bottom: 20px;
    right: 20px;
    width: 56px;
    height: 56px;
    border-radius: 28px;
    background: var(--primary);
    color: white;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: var(--shadow-lg);
    cursor: pointer;
    transition: all var(--transition-normal);
    z-index: 90;
}

.fab:hover {
    transform: scale(1.05);
    background: var(--primary-dark);
}

.fab:active {
    transform: scale(0.95);
}

/* ==================== BOTTOM NAVIGATION (Mobile) ==================== */
.bottom-nav {
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    background: var(--bg-secondary);
    display: flex;
    justify-content: space-around;
    padding: var(--spacing-sm) var(--spacing-md);
    border-top: 1px solid var(--border);
    z-index: 90;
}

.bottom-nav-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 4px;
    padding: 6px 12px;
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: all var(--transition-fast);
    color: var(--text-secondary);
}

.bottom-nav-item.active {
    color: var(--primary);
    background: rgba(122, 31, 43, 0.1);
}

.bottom-nav-item span:first-child {
    font-size: 1.25rem;
}

.bottom-nav-item span:last-child {
    font-size: 0.7rem;
}

/* ==================== PULL TO REFRESH ==================== */
.pull-to-refresh {
    text-align: center;
    padding: var(--spacing-sm);
    color: var(--text-secondary);
    font-size: 0.75rem;
}

/* ==================== EMPTY STATES ==================== */
.empty-state {
    text-align: center;
    padding: var(--spacing-xl);
    color: var(--text-secondary);
}

.empty-state-icon {
    font-size: 3rem;
    margin-bottom: var(--spacing-md);
    opacity: 0.5;
}

.empty-state-title {
    font-size: 1rem;
    margin-bottom: var(--spacing-xs);
}

.empty-state-text {
    font-size: 0.85rem;
}

/* ==================== ERROR STATES ==================== */
.error-message {
    background: rgba(198, 40, 40, 0.1);
    color: var(--danger);
    padding: var(--spacing-sm);
    border-radius: var(--radius-md);
    margin-bottom: var(--spacing-md);
    font-size: 0.85rem;
    border-left: 3px solid var(--danger);
}

.success-message {
    background: rgba(46, 125, 50, 0.1);
    color: var(--success);
    padding: var(--spacing-sm);
    border-radius: var(--radius-md);
    margin-bottom: var(--spacing-md);
    font-size: 0.85rem;
    border-left: 3px solid var(--success);
}

/* ==================== SCROLLBAR ==================== */
::-webkit-scrollbar {
    width: 6px;
    height: 6px;
}

::-webkit-scrollbar-track {
    background: var(--bg-primary);
}

::-webkit-scrollbar-thumb {
    background: var(--border);
    border-radius: 3px;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--primary);
}

/* ==================== PRINT STYLES ==================== */
@media print {
    .header, .sidebar, .bottom-nav, .fab, .btn, .icon-btn {
        display: none;
    }
    
    body {
        background: white;
        color: black;
    }
    
    .card {
        break-inside: avoid;
        box-shadow: none;
        border: 1px solid #ccc;
    }
}