/**
 * Street Lighting Management System - Modern Stylesheet
 * Brand Colors: Red (#E30613), Black (#1A1A1A), Yellow (#FFE84D)
 */

/* ============================================
   CSS Variables - Brand Color Palette
   ============================================ */
:root {
    /* Primary Brand Colors */
    --primary-red: #E30613;
    --primary-red-dark: #B30510;
    --primary-red-light: #FF1F2E;

    /* Secondary Colors */
    --primary-black: #1A1A1A;
    --primary-yellow: #FFE84D;
    --primary-yellow-dark: #F5D932;

    /* Neutral Colors */
    --white: #FFFFFF;
    --gray-50: #FAFAFA;
    --gray-100: #F5F5F5;
    --gray-200: #E0E0E0;
    --gray-300: #BDBDBD;
    --gray-400: #9E9E9E;
    --gray-500: #757575;
    --gray-600: #616161;
    --gray-700: #424242;
    --gray-800: #2D2D2D;
    --gray-900: #1A1A1A;

    /* Semantic Colors */
    --success: #4CAF50;
    --warning: #FF9800;
    --error: #E30613;
    --info: #2196F3;

    /* Shadows */
    --shadow-sm: 0 2px 4px rgba(0,0,0,0.08);
    --shadow-md: 0 4px 12px rgba(0,0,0,0.12);
    --shadow-lg: 0 8px 24px rgba(0,0,0,0.15);

    /* Border Radius */
    --radius-sm: 4px;
    --radius-md: 8px;
    --radius-lg: 12px;
    --radius-xl: 16px;

    /* Transitions */
    --transition-fast: 150ms ease;
    --transition-base: 250ms ease;
    --transition-slow: 350ms ease;
}

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

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    font-size: 16px;
    line-height: 1.6;
    color: var(--gray-900);
    background-color: var(--gray-50);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* ============================================
   Login Page - Modern Design
   ============================================ */
.login-page {
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 100vh;
    background: linear-gradient(135deg, var(--primary-red) 0%, var(--primary-black) 100%);
    position: relative;
    overflow: hidden;
}

.login-page::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle, rgba(255, 232, 77, 0.1) 0%, transparent 70%);
    animation: pulse 15s ease-in-out infinite;
}

@keyframes pulse {
    0%, 100% { transform: scale(1); }
    50% { transform: scale(1.1); }
}

.login-container {
    width: 100%;
    max-width: 420px;
    padding: 20px;
    position: relative;
    z-index: 1;
}

.login-box {
    background: var(--white);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-lg);
    padding: 48px 40px;
    backdrop-filter: blur(10px);
}

.login-header {
    text-align: center;
    margin-bottom: 32px;
}

.login-logo {
    max-width: 280px;
    height: auto;
    margin-bottom: 24px;
}

.login-header h1 {
    color: var(--primary-red);
    font-size: 28px;
    font-weight: 700;
    margin-bottom: 8px;
    letter-spacing: -0.5px;
}

.login-header p {
    color: var(--gray-600);
    font-size: 15px;
}

/* ============================================
   Forms - Modern Input Design
   ============================================ */
.form-group {
    margin-bottom: 24px;
}

.form-group label {
    display: block;
    margin-bottom: 8px;
    font-weight: 600;
    color: var(--gray-800);
    font-size: 14px;
}

.form-group input[type="text"],
.form-group input[type="password"],
.form-group input[type="email"],
.form-group input[type="date"],
.form-group input[type="number"],
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 12px 16px;
    border: 2px solid var(--gray-200);
    border-radius: var(--radius-md);
    font-size: 15px;
    transition: all var(--transition-base);
    background: var(--white);
    color: var(--gray-900);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary-red);
    box-shadow: 0 0 0 3px rgba(227, 6, 19, 0.1);
}

.form-group textarea {
    resize: vertical;
    min-height: 100px;
}

/* ============================================
   Buttons - Modern Button System
   ============================================ */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 12px 24px;
    border: none;
    border-radius: var(--radius-md);
    font-size: 15px;
    font-weight: 600;
    text-align: center;
    text-decoration: none;
    cursor: pointer;
    transition: all var(--transition-base);
    white-space: nowrap;
}

.btn-primary {
    background: var(--primary-red);
    color: var(--white);
    box-shadow: var(--shadow-sm);
}

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

.btn-primary:active {
    transform: translateY(0);
}

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

.btn-success:hover {
    background: #45a049;
    transform: translateY(-1px);
}

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

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

.btn-secondary {
    background: var(--gray-700);
    color: var(--white);
}

.btn-secondary:hover {
    background: var(--gray-800);
}

.btn-sm {
    padding: 8px 16px;
    font-size: 13px;
}

.btn-logout {
    background: var(--gray-700);
    color: var(--white);
    padding: 10px 20px;
    font-size: 14px;
}

.btn-logout:hover {
    background: var(--gray-800);
}

/* ============================================
   Alerts - Modern Alert Design
   ============================================ */
.alert {
    padding: 16px 20px;
    border-radius: var(--radius-md);
    margin-bottom: 24px;
    border-left: 4px solid;
    display: flex;
    align-items: center;
    gap: 12px;
}

.alert-error {
    background: #FFEBEE;
    color: #C62828;
    border-color: var(--primary-red);
}

.alert-success {
    background: #E8F5E9;
    color: #2E7D32;
    border-color: var(--success);
}

.alert-warning {
    background: #FFF3E0;
    color: #E65100;
    border-color: var(--warning);
}

.alert-info {
    background: #E3F2FD;
    color: #1565C0;
    border-color: var(--info);
}

/* ============================================
   Language Selector
   ============================================ */
.language-selector {
    text-align: center;
    margin-top: 24px;
}

.language-selector a {
    color: var(--gray-600);
    text-decoration: none;
    font-weight: 600;
    padding: 6px 12px;
    border-radius: var(--radius-sm);
    transition: all var(--transition-base);
}

.language-selector a:hover {
    color: var(--primary-red);
    background: var(--gray-100);
}

.language-selector a.active {
    color: var(--white);
    background: var(--primary-red);
}

.language-selector span {
    color: var(--gray-300);
    margin: 0 8px;
}

.demo-credentials {
    margin-top: 24px;
    padding: 16px;
    background: var(--gray-50);
    border-radius: var(--radius-md);
    font-size: 13px;
    border: 1px solid var(--gray-200);
}

.demo-credentials strong {
    color: var(--primary-red);
}

.demo-credentials p {
    margin: 6px 0;
    color: var(--gray-700);
}

.demo-credentials code {
    background: var(--white);
    padding: 3px 8px;
    border-radius: var(--radius-sm);
    font-family: 'Courier New', monospace;
    color: var(--primary-black);
    border: 1px solid var(--gray-200);
}

/* ============================================
   Header - Modern Navigation
   ============================================ */
.site-header {
    background: var(--white);
    border-bottom: 1px solid var(--gray-200);
    padding: 0;
    box-shadow: var(--shadow-sm);
    position: sticky;
    top: 0;
    z-index: 100;
}

.header-container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 16px 32px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.header-left {
    display: flex;
    align-items: center;
    gap: 16px;
}

.site-logo {
    max-width: 180px;
    height: auto;
}

.site-title {
    font-size: 20px;
    color: var(--primary-red);
    font-weight: 700;
    letter-spacing: -0.3px;
}

.header-right {
    display: flex;
    align-items: center;
    gap: 24px;
}

.user-info {
    font-size: 14px;
    padding: 8px 16px;
    background: var(--gray-50);
    border-radius: var(--radius-md);
}

.user-name {
    font-weight: 700;
    color: var(--primary-black);
}

.user-role {
    color: var(--gray-600);
    font-size: 13px;
}

.language-switcher a {
    color: var(--gray-600);
    text-decoration: none;
    padding: 6px 12px;
    border-radius: var(--radius-sm);
    font-size: 13px;
    font-weight: 600;
    transition: all var(--transition-base);
}

.language-switcher a:hover {
    background: var(--gray-100);
    color: var(--primary-red);
}

.language-switcher a.active {
    background: var(--primary-red);
    color: var(--white);
}

/* ============================================
   Layout Container
   ============================================ */
.container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 32px;
    display: flex;
    gap: 32px;
    min-height: calc(100vh - 200px);
}

/* ============================================
   Sidebar - Modern Navigation
   ============================================ */
.sidebar {
    width: 260px;
    background: var(--white);
    border-radius: var(--radius-lg);
    padding: 24px 0;
    height: fit-content;
    box-shadow: var(--shadow-sm);
    position: sticky;
    top: 100px;
}

.sidebar-nav ul {
    list-style: none;
}

.sidebar-nav li {
    margin: 4px 0;
}

.sidebar-nav a {
    display: flex;
    align-items: center;
    padding: 12px 24px;
    color: var(--gray-700);
    text-decoration: none;
    transition: all var(--transition-base);
    font-weight: 500;
    border-left: 3px solid transparent;
}

.sidebar-nav a:hover {
    background: var(--gray-50);
    color: var(--primary-red);
    border-left-color: var(--primary-red);
}

.sidebar-nav li.active a {
    background: linear-gradient(90deg, rgba(227, 6, 19, 0.1) 0%, transparent 100%);
    color: var(--primary-red);
    font-weight: 700;
    border-left-color: var(--primary-red);
}

/* ============================================
   Main Content Area
   ============================================ */
.main-content {
    flex: 1;
    background: var(--white);
    border-radius: var(--radius-lg);
    padding: 32px;
    box-shadow: var(--shadow-sm);
}

.page-header {
    margin-bottom: 32px;
    padding-bottom: 20px;
    border-bottom: 3px solid var(--gray-100);
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
}

.page-header h1 {
    color: var(--primary-black);
    font-size: 32px;
    font-weight: 700;
    letter-spacing: -0.5px;
}

.page-actions {
    margin-bottom: 24px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 16px;
    flex-wrap: wrap;
}

/* ============================================
   Dashboard - Modern Cards
   ============================================ */
.dashboard-welcome {
    background: linear-gradient(135deg, var(--primary-red) 0%, var(--primary-black) 100%);
    color: var(--white);
    padding: 32px;
    border-radius: var(--radius-lg);
    margin-bottom: 32px;
    box-shadow: var(--shadow-md);
}

.dashboard-welcome h2 {
    font-size: 24px;
    margin-bottom: 12px;
}

.dashboard-welcome p {
    opacity: 0.95;
    line-height: 1.7;
}

.dashboard-stats {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: 24px;
    margin-bottom: 32px;
}

.stat-card {
    background: var(--white);
    border: 2px solid var(--gray-100);
    padding: 24px;
    border-radius: var(--radius-lg);
    text-align: center;
    transition: all var(--transition-base);
    position: relative;
    overflow: hidden;
}

.stat-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, var(--primary-red) 0%, var(--primary-yellow) 100%);
}

.stat-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-md);
    border-color: var(--primary-red);
}

.stat-card h3 {
    font-size: 14px;
    color: var(--gray-600);
    margin-bottom: 12px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.stat-number {
    font-size: 36px;
    font-weight: 700;
    color: var(--primary-red);
}

.quick-links {
    margin-top: 32px;
}

.quick-links h3 {
    color: var(--primary-black);
    margin-bottom: 16px;
    font-size: 20px;
}

.links-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
    gap: 16px;
}

.quick-link {
    display: block;
    padding: 20px;
    background: var(--white);
    border: 2px solid var(--gray-200);
    border-radius: var(--radius-md);
    text-align: center;
    text-decoration: none;
    color: var(--gray-800);
    font-weight: 600;
    transition: all var(--transition-base);
}

.quick-link:hover {
    background: var(--primary-red);
    color: var(--white);
    border-color: var(--primary-red);
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

/* ============================================
   Tables - Modern Data Tables
   ============================================ */
.data-table {
    width: 100%;
    border-collapse: separate;
    border-spacing: 0;
    margin-top: 20px;
    border: 1px solid var(--gray-200);
    border-radius: var(--radius-md);
    overflow: hidden;
}

.data-table th,
.data-table td {
    padding: 16px;
    text-align: left;
}

.data-table th {
    background: var(--gray-50);
    font-weight: 700;
    color: var(--primary-black);
    text-transform: uppercase;
    font-size: 13px;
    letter-spacing: 0.5px;
    border-bottom: 2px solid var(--gray-200);
}

.data-table tbody tr {
    border-bottom: 1px solid var(--gray-100);
    transition: all var(--transition-fast);
}

.data-table tbody tr:hover {
    background: var(--gray-50);
}

.data-table tbody tr:last-child {
    border-bottom: none;
}

.data-table .actions {
    white-space: nowrap;
}

.data-table .actions a,
.data-table .actions button {
    margin-right: 8px;
}

/* ============================================
   Status Badges - Color-coded
   ============================================ */
.badge {
    display: inline-block;
    padding: 6px 12px;
    border-radius: 20px;
    font-size: 12px;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.3px;
}

.badge-active {
    background: #E8F5E9;
    color: #2E7D32;
}

.badge-inactive {
    background: var(--gray-200);
    color: var(--gray-700);
}

.badge-maintenance {
    background: #FFF3E0;
    color: #E65100;
}

.badge-faulty {
    background: #FFEBEE;
    color: #C62828;
}

.badge-scheduled {
    background: #E3F2FD;
    color: #1565C0;
}

.badge-completed {
    background: #E8F5E9;
    color: #2E7D32;
}

.badge-cancelled {
    background: var(--gray-200);
    color: var(--gray-700);
}

.badge-on_hold {
    background: #FFF3E0;
    color: #E65100;
}

/* ============================================
   Details View Styles
   ============================================ */
.details-view {
    background: var(--gray-50);
    padding: 24px;
    border-radius: var(--radius-lg);
}

.details-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 16px;
    margin-top: 16px;
}

.detail-item {
    background: var(--white);
    padding: 16px;
    border-radius: var(--radius-md);
    border-left: 4px solid var(--primary-red);
    box-shadow: var(--shadow-sm);
}

.detail-item strong {
    display: block;
    color: var(--gray-600);
    font-size: 13px;
    margin-bottom: 6px;
    text-transform: uppercase;
    letter-spacing: 0.3px;
}

.detail-item span {
    color: var(--primary-black);
    font-size: 16px;
    font-weight: 600;
}

.detail-row {
    padding: 16px 0;
    border-bottom: 1px solid var(--gray-200);
    display: grid;
    grid-template-columns: 200px 1fr;
    gap: 24px;
}

.detail-row:last-child {
    border-bottom: none;
}

.user-list {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
    gap: 12px;
    margin-top: 16px;
}

.user-item {
    background: var(--white);
    padding: 12px 16px;
    border-radius: var(--radius-md);
    border-left: 3px solid var(--success);
    box-shadow: var(--shadow-sm);
}

.user-item strong {
    display: block;
    color: var(--primary-black);
    font-weight: 700;
}

.user-item span {
    color: var(--gray-600);
    font-size: 13px;
}

/* ============================================
   Footer
   ============================================ */
.site-footer {
    background: var(--white);
    border-top: 1px solid var(--gray-200);
    padding: 24px 0;
    margin-top: 48px;
    text-align: center;
    color: var(--gray-600);
    font-size: 14px;
}

/* ============================================
   Utility Classes
   ============================================ */
.tech-spec-row, .template-field {
    display: grid;
    grid-template-columns: 1fr 2fr auto;
    gap: 12px;
    margin-bottom: 12px;
    align-items: center;
}

.form-actions {
    display: flex;
    gap: 12px;
    margin-top: 24px;
}

/* ============================================
   Mobile Menu Toggle
   ============================================ */
.mobile-menu-toggle {
    display: none;
    background: var(--primary-red);
    color: var(--white);
    border: none;
    padding: 10px 15px;
    border-radius: var(--radius-md);
    cursor: pointer;
    font-size: 18px;
    transition: all var(--transition-base);
}

.mobile-menu-toggle:hover {
    background: var(--primary-red-dark);
}

/* ============================================
   Responsive Design - Enhanced Mobile Support
   ============================================ */
@media (max-width: 1024px) {
    .container {
        flex-direction: column;
        padding: 20px;
        gap: 20px;
    }

    .sidebar {
        width: 100%;
        position: static;
        margin-bottom: 20px;
    }

    .dashboard-stats {
        grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
        gap: 16px;
    }

    .main-content {
        padding: 24px;
    }
}

@media (max-width: 768px) {
    body {
        font-size: 15px;
    }

    .header-container {
        flex-direction: column;
        gap: 12px;
        padding: 12px 16px;
    }

    .header-left {
        width: 100%;
        justify-content: space-between;
    }

    .header-right {
        flex-direction: row;
        flex-wrap: wrap;
        width: 100%;
        gap: 12px;
    }

    .user-info {
        flex: 1;
        min-width: 200px;
    }

    .mobile-menu-toggle {
        display: inline-block;
    }

    .sidebar {
        display: none;
        position: fixed;
        top: 0;
        left: 0;
        right: 0;
        bottom: 0;
        background: rgba(0, 0, 0, 0.8);
        z-index: 1000;
        padding: 0;
    }

    .sidebar.active {
        display: block;
    }

    .sidebar-nav {
        background: var(--white);
        max-width: 300px;
        height: 100%;
        overflow-y: auto;
        animation: slideIn 0.3s ease;
    }

    @keyframes slideIn {
        from {
            transform: translateX(-100%);
        }
        to {
            transform: translateX(0);
        }
    }

    .page-header {
        flex-direction: column;
        align-items: flex-start;
        gap: 12px;
    }

    .page-header h1 {
        font-size: 24px;
    }

    .page-actions {
        flex-direction: column;
        align-items: stretch;
        width: 100%;
    }

    .page-actions form,
    .page-actions .btn {
        width: 100%;
    }

    /* Mobile-friendly tables */
    .data-table {
        font-size: 13px;
        display: block;
        overflow-x: auto;
        -webkit-overflow-scrolling: touch;
    }

    .data-table table {
        min-width: 600px;
    }

    .data-table th,
    .data-table td {
        padding: 10px 8px;
        font-size: 13px;
    }

    /* Stack buttons vertically on mobile */
    .data-table .actions {
        display: flex;
        flex-direction: column;
        gap: 6px;
    }

    .data-table .actions a,
    .data-table .actions button {
        margin-right: 0;
        width: 100%;
        text-align: center;
    }

    .details-grid {
        grid-template-columns: 1fr;
        gap: 12px;
    }

    .detail-row {
        grid-template-columns: 1fr;
        gap: 6px;
        padding: 12px 0;
    }

    .dashboard-stats {
        grid-template-columns: 1fr;
        gap: 12px;
    }

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

    .stat-card {
        padding: 20px;
    }

    /* Form improvements for mobile */
    .form-group input,
    .form-group select,
    .form-group textarea {
        font-size: 16px; /* Prevents zoom on iOS */
    }

    .btn {
        padding: 14px 24px; /* Larger touch targets */
        font-size: 16px;
    }

    .btn-sm {
        padding: 10px 16px;
        font-size: 14px;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 12px;
    }

    .login-box {
        padding: 24px 20px;
    }

    .login-header h1 {
        font-size: 22px;
    }

    .main-content {
        padding: 16px;
        border-radius: var(--radius-md);
    }

    .page-header {
        margin-bottom: 20px;
        padding-bottom: 16px;
    }

    .page-header h1 {
        font-size: 20px;
    }

    .site-title {
        font-size: 16px;
    }

    .dashboard-welcome {
        padding: 20px;
    }

    .dashboard-welcome h2 {
        font-size: 20px;
    }

    .stat-number {
        font-size: 28px;
    }

    .tech-spec-row,
    .template-field {
        grid-template-columns: 1fr;
        gap: 8px;
    }

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

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

    /* Smaller user info on very small screens */
    .user-info {
        font-size: 13px;
        padding: 6px 12px;
    }

    .language-switcher a {
        padding: 8px 12px;
    }
}

/* ============================================
   Touch Device Optimizations
   ============================================ */
@media (hover: none) and (pointer: coarse) {
    /* Larger tap targets for touch devices */
    .btn {
        min-height: 44px;
        padding: 12px 24px;
    }

    .sidebar-nav a {
        padding: 16px 24px;
    }

    .quick-link {
        padding: 24px;
    }

    /* Remove hover effects on touch devices */
    .stat-card:hover,
    .quick-link:hover,
    .data-table tbody tr:hover {
        transform: none;
        box-shadow: none;
    }

    /* Make form controls more touch-friendly */
    input[type="checkbox"],
    input[type="radio"] {
        width: 20px;
        height: 20px;
    }
}

/* ============================================
   Print Styles
   ============================================ */
@media print {
    .site-header,
    .sidebar,
    .site-footer,
    .page-actions,
    .btn,
    .mobile-menu-toggle {
        display: none;
    }

    .container {
        display: block;
        padding: 0;
    }

    .main-content {
        box-shadow: none;
        padding: 0;
    }

    .data-table {
        border: 1px solid #000;
    }

    .data-table th {
        background: #f0f0f0;
    }
}