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

:root {
    --primary-color: #1e3a8a;
    --primary-dark: #1e40af;
    --primary-light: #3b82f6;
    --secondary-color: #059669;
    --danger-color: #dc2626;
    --warning-color: #d97706;
    --success-color: #16a34a;
    --info-color: #0284c7;
    --dark-color: #1f2937;
    --light-color: #f3f4f6;
    --white: #ffffff;
    --gray-100: #f9fafb;
    --gray-200: #e5e7eb;
    --gray-300: #d1d5db;
    --gray-400: #9ca3af;
    --gray-500: #6b7280;
    --gray-600: #4b5563;
    --gray-700: #374151;
    --gray-800: #1f2937;
    --gray-900: #111827;
    --shadow: 0 1px 3px 0 rgba(0, 0, 0, 0.1), 0 1px 2px 0 rgba(0, 0, 0, 0.06);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    font-size: 16px;
    line-height: 1.6;
    color: var(--gray-800);
    background-color: var(--gray-100);
}

.app-container {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

/* Navbar */
.navbar {
    background-color: var(--primary-color);
    color: var(--white);
    box-shadow: var(--shadow-md);
    position: sticky;
    top: 0;
    z-index: 1000;
}

.nav-container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 1rem 1.5rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.nav-brand-link {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    color: var(--white);
    text-decoration: none;
    transition: opacity 0.2s;
}

.nav-brand-link:hover {
    opacity: 0.9;
}

.nav-logo {
    height: 45px;
    width: auto;
    border-radius: 0.375rem;
    background: rgba(255, 255, 255, 0.1);
    padding: 0.25rem;
}

.nav-brand h1 {
    font-size: 1.5rem;
    margin: 0;
    font-weight: 600;
}

.nav-menu {
    display: flex;
    align-items: center;
    gap: 2rem;
}

.nav-link {
    color: var(--white);
    text-decoration: none;
    font-weight: 500;
    transition: opacity 0.2s;
}

.nav-link:hover {
    opacity: 0.8;
}

.nav-user {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.nav-toggle {
    display: none;
    background: none;
    border: none;
    color: var(--white);
    font-size: 1.5rem;
    cursor: pointer;
}

.btn-logout {
    background-color: var(--danger-color);
    color: var(--white);
    border: none;
    padding: 0.5rem 1rem;
    border-radius: 0.375rem;
    cursor: pointer;
    font-weight: 500;
    transition: background-color 0.2s;
}

.btn-logout:hover {
    background-color: #b91c1c;
}

/* Main Content */
.main-content {
    flex: 1;
    max-width: 1400px;
    width: 100%;
    margin: 0 auto;
    padding: 2rem 1.5rem;
}

/* Alerts */
.alert {
    padding: 1rem;
    border-radius: 0.375rem;
    margin-bottom: 1.5rem;
}

.alert-success {
    background-color: #d1fae5;
    color: #065f46;
    border: 1px solid #10b981;
}

.alert-error {
    background-color: #fee2e2;
    color: #991b1b;
    border: 1px solid #ef4444;
}

.alert-info {
    background-color: #dbeafe;
    color: #1e40af;
    border: 1px solid #3b82f6;
}

.alert ul {
    margin: 0.5rem 0 0 1.5rem;
}

/* Page Header */
.page-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 2rem;
    flex-wrap: wrap;
    gap: 1rem;
}

.page-header h1 {
    font-size: 2rem;
    color: var(--dark-color);
}

/* Buttons */
.btn {
    display: inline-block;
    padding: 0.75rem 1.5rem;
    border-radius: 0.375rem;
    text-decoration: none;
    font-weight: 500;
    text-align: center;
    border: none;
    cursor: pointer;
    transition: all 0.2s;
    font-size: 1rem;
}

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

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

.btn-secondary {
    background-color: var(--gray-500);
    color: var(--white);
}

.btn-secondary:hover {
    background-color: var(--gray-600);
}

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

.btn-success:hover {
    background-color: #15803d;
}

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

.btn-danger:hover {
    background-color: #b91c1c;
}

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

.btn-warning:hover {
    background-color: #b45309;
}

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

.btn-info:hover {
    background-color: #0369a1;
}

.btn-sm {
    padding: 0.5rem 1rem;
    font-size: 0.875rem;
}

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

.btn-group {
    display: flex;
    gap: 0.5rem;
    flex-wrap: wrap;
}

/* Forms */
.form-card {
    background-color: var(--white);
    padding: 2rem;
    border-radius: 0.5rem;
    box-shadow: var(--shadow-md);
}

.form-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 1.5rem;
    margin-bottom: 2rem;
}

.form-group {
    display: flex;
    flex-direction: column;
}

.form-group label {
    margin-bottom: 0.5rem;
    font-weight: 500;
    color: var(--gray-700);
}

.form-group input,
.form-group select,
.form-group textarea {
    padding: 0.75rem;
    border: 1px solid var(--gray-300);
    border-radius: 0.375rem;
    font-size: 1rem;
    transition: border-color 0.2s;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.1);
}

.form-group .error {
    color: var(--danger-color);
    font-size: 0.875rem;
    margin-top: 0.25rem;
}

.form-group-checkbox {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.form-group-checkbox input[type="checkbox"] {
    width: 1.25rem;
    height: 1.25rem;
}

.form-actions {
    display: flex;
    gap: 1rem;
    justify-content: flex-end;
    flex-wrap: wrap;
}

/* Tables */
.table-responsive {
    overflow-x: auto;
    background-color: var(--white);
    border-radius: 0.5rem;
    box-shadow: var(--shadow-md);
}

.table {
    width: 100%;
    border-collapse: collapse;
}

.table thead {
    background-color: var(--gray-100);
}

.table th,
.table td {
    padding: 1rem;
    text-align: left;
    border-bottom: 1px solid var(--gray-200);
}

.table th {
    font-weight: 600;
    color: var(--gray-700);
}

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

.text-center {
    text-align: center;
}

/* Badges */
.badge {
    display: inline-block;
    padding: 0.25rem 0.75rem;
    border-radius: 9999px;
    font-size: 0.875rem;
    font-weight: 500;
}

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

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

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

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

/* Dashboard */
.dashboard-container {
    width: 100%;
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 1.5rem;
    margin-bottom: 2rem;
}

.stat-card {
    background-color: var(--white);
    padding: 1.5rem;
    border-radius: 0.5rem;
    box-shadow: var(--shadow-md);
    display: flex;
    align-items: center;
    gap: 1.5rem;
}

.stat-card.warning {
    border-left: 4px solid var(--warning-color);
}

.stat-card.danger {
    border-left: 4px solid var(--danger-color);
}

.stat-icon {
    font-size: 3rem;
}

.stat-info h3 {
    font-size: 2rem;
    color: var(--dark-color);
    margin: 0;
}

.stat-info p {
    color: var(--gray-600);
    margin: 0.25rem 0 0 0;
}

.section {
    background-color: var(--white);
    padding: 2rem;
    border-radius: 0.5rem;
    box-shadow: var(--shadow-md);
    margin-bottom: 2rem;
}

.section-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1.5rem;
    flex-wrap: wrap;
    gap: 1rem;
}

.section-header h2 {
    font-size: 1.5rem;
    color: var(--dark-color);
}

/* Vehicles Grid */
.vehicles-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 1.5rem;
}

.vehicle-card {
    background-color: var(--white);
    border: 1px solid var(--gray-200);
    border-radius: 0.5rem;
    overflow: hidden;
    box-shadow: var(--shadow);
    transition: box-shadow 0.2s;
}

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

.vehicle-header {
    background-color: var(--primary-color);
    color: var(--white);
    padding: 1rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.vehicle-header h3 {
    margin: 0;
    font-size: 1.25rem;
}

.vehicle-body {
    padding: 1.5rem;
}

.vehicle-body p {
    margin: 0.5rem 0;
}

.vehicle-footer {
    padding: 1rem 1.5rem;
    background-color: var(--gray-50);
    display: flex;
    gap: 0.5rem;
    flex-wrap: wrap;
}

.vehicle-footer .btn {
    flex: 1;
    min-width: fit-content;
    text-align: center;
}

/* Detail Cards */
.detail-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 1.5rem;
}

.detail-card {
    background-color: var(--white);
    padding: 2rem;
    border-radius: 0.5rem;
    box-shadow: var(--shadow-md);
}

.detail-card h2 {
    font-size: 1.5rem;
    margin-bottom: 1.5rem;
    color: var(--dark-color);
    border-bottom: 2px solid var(--primary-color);
    padding-bottom: 0.5rem;
}

.detail-card dl {
    display: grid;
    gap: 1rem;
}

.detail-card dt {
    font-weight: 600;
    color: var(--gray-700);
}

.detail-card dd {
    color: var(--gray-800);
    margin: 0;
}

.list-group {
    list-style: none;
    padding: 0;
}

.list-item {
    padding: 1rem;
    border-bottom: 1px solid var(--gray-200);
}

.list-item:last-child {
    border-bottom: none;
}

.list-item strong {
    display: block;
    margin-bottom: 0.5rem;
}

.list-item p {
    margin: 0.5rem 0;
    color: var(--gray-600);
}

.list-item small {
    color: var(--gray-500);
    font-size: 0.875rem;
}

/* Empty State */
.empty-state {
    text-align: center;
    padding: 3rem;
    color: var(--gray-600);
}

.empty-state p {
    margin-bottom: 1.5rem;
    font-size: 1.125rem;
}

/* Pagination */
.pagination {
    margin-top: 2rem;
    display: flex;
    justify-content: center;
}

.pagination ul {
    display: flex;
    list-style: none;
    gap: 0.5rem;
}

.pagination li a {
    padding: 0.5rem 1rem;
    background-color: var(--white);
    border: 1px solid var(--gray-300);
    border-radius: 0.375rem;
    text-decoration: none;
    color: var(--gray-700);
    transition: all 0.2s;
}

.pagination li a:hover {
    background-color: var(--gray-100);
    border-color: var(--primary-color);
}

.pagination li.active span {
    padding: 0.5rem 1rem;
    background-color: var(--primary-color);
    color: var(--white);
    border-radius: 0.375rem;
}

/* Auth Pages */
.auth-body {
    background: linear-gradient(135deg, #1e3a8a 0%, #3b82f6 50%, #059669 100%);
    background-size: 400% 400%;
    animation: gradientShift 15s ease infinite;
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 1rem;
    position: relative;
    overflow: hidden;
}

.auth-body::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: 
        radial-gradient(circle at 20% 50%, rgba(255, 255, 255, 0.1) 0%, transparent 50%),
        radial-gradient(circle at 80% 80%, rgba(255, 255, 255, 0.1) 0%, transparent 50%),
        radial-gradient(circle at 40% 20%, rgba(255, 255, 255, 0.05) 0%, transparent 50%);
    pointer-events: none;
}

@keyframes gradientShift {
    0% {
        background-position: 0% 50%;
    }
    50% {
        background-position: 100% 50%;
    }
    100% {
        background-position: 0% 50%;
    }
}

.auth-container {
    width: 100%;
    max-width: 450px;
    position: relative;
    z-index: 1;
}

.auth-card {
    background-color: var(--white);
    padding: 2.5rem;
    border-radius: 1rem;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.2);
}

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

.logo-container {
    margin-bottom: 1.5rem;
    display: flex;
    justify-content: center;
    align-items: center;
}

.login-logo {
    max-width: 180px;
    height: auto;
    border-radius: 0.5rem;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
    background: white;
    padding: 0.5rem;
}

.auth-header h1 {
    font-size: 2rem;
    background: linear-gradient(135deg, #1e3a8a 0%, #059669 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 0.5rem;
    font-weight: 700;
}

.auth-header p {
    color: var(--gray-600);
    font-size: 1.125rem;
    font-weight: 500;
}

.welcome-lead {
    text-align: center;
    color: var(--gray-600);
    margin-bottom: 1.75rem;
    line-height: 1.6;
}

.welcome-actions {
    margin-top: 0.25rem;
}

.auth-form {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.auth-links {
    text-align: center;
    margin-top: 1rem;
}

.auth-links a {
    color: var(--primary-color);
    text-decoration: none;
    font-weight: 500;
}

.auth-links a:hover {
    text-decoration: underline;
}

/* QR Code Container */
.qr-code-container {
    text-align: center;
    margin: 2rem 0;
    padding: 2rem;
    background-color: var(--gray-50);
    border-radius: 0.5rem;
}

.qr-code {
    margin: 1rem auto;
    display: inline-block;
}

.qr-code img {
    max-width: 300px;
    width: 100%;
    height: auto;
    border: 2px solid var(--gray-300);
    border-radius: 0.5rem;
    padding: 1rem;
    background-color: var(--white);
}

.qr-code-container code {
    background-color: var(--gray-200);
    padding: 0.5rem 1rem;
    border-radius: 0.375rem;
    font-family: 'Courier New', monospace;
    font-size: 1rem;
    display: inline-block;
    margin: 0.5rem 0;
    word-break: break-all;
}

/* Footer */
.footer {
    background-color: var(--gray-800);
    color: var(--gray-300);
    text-align: center;
    padding: 1.5rem;
    margin-top: auto;
}

.footer p {
    margin: 0;
}

/* Responsive Design */
@media (max-width: 768px) {
    .nav-logo {
        height: 35px;
    }

    .nav-brand h1 {
        font-size: 1.25rem;
    }

    .login-logo {
        max-width: 150px;
    }

    .auth-header h1 {
        font-size: 1.75rem;
    }

    .nav-menu {
        position: fixed;
        top: 70px;
        left: 0;
        right: 0;
        background-color: var(--primary-dark);
        flex-direction: column;
        padding: 1rem;
        gap: 1rem;
        display: none;
    }

    .nav-menu.active {
        display: flex;
    }

    .nav-toggle {
        display: block;
    }

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

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

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

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

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

    .table-responsive {
        font-size: 0.875rem;
    }

    .table th,
    .table td {
        padding: 0.75rem;
    }

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

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

/* PWA Specific Styles */
.pwa-installed {
    /* Estilos cuando la app está instalada */
}

.pwa-installed .navbar {
    /* Ajustes para modo standalone */
    padding-top: env(safe-area-inset-top);
}

.pwa-installed .main-content {
    padding-bottom: env(safe-area-inset-bottom);
}

/* Botón de Instalación PWA */
#install-pwa-btn {
    display: none;
    position: fixed;
    bottom: 20px;
    right: 20px;
    background: linear-gradient(135deg, #059669 0%, #10b981 100%);
    color: white;
    border: none;
    padding: 12px 24px;
    border-radius: 50px;
    font-weight: 600;
    font-size: 0.9rem;
    box-shadow: 0 4px 12px rgba(5, 150, 105, 0.4);
    cursor: pointer;
    z-index: 1000;
    transition: all 0.3s ease;
}

#install-pwa-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 16px rgba(5, 150, 105, 0.5);
}

#install-pwa-btn:active {
    transform: translateY(0);
}

#install-pwa-btn::before {
    content: '📱 ';
    margin-right: 5px;
}

/* Safe Area para dispositivos con notch */
@supports (padding: max(0px)) {
    .pwa-installed .navbar {
        padding-top: max(1rem, env(safe-area-inset-top));
    }
    
    .pwa-installed .main-content {
        padding-bottom: max(1rem, env(safe-area-inset-bottom));
    }
}

/* Mejoras para modo standalone */
@media (display-mode: standalone) {
    body {
        /* Ocultar barra de direcciones en algunos navegadores */
        overscroll-behavior: none;
    }
    
    .navbar {
        /* Asegurar que el navbar esté siempre visible */
        position: sticky;
        top: 0;
    }
}

/* Mejoras de touch para móviles */
@media (hover: none) and (pointer: coarse) {
    .btn, button, a {
        min-height: 44px; /* Tamaño mínimo recomendado para touch */
        min-width: 44px;
    }
    
    input, select, textarea {
        font-size: 16px; /* Previene zoom en iOS */
    }
}

@media (max-width: 480px) {
    .main-content {
        padding: 1rem;
    }

    .auth-card {
        padding: 1.5rem;
    }

    .stat-card {
        flex-direction: column;
        text-align: center;
    }

    .section-header {
        flex-direction: column;
        align-items: flex-start;
    }
}