/* ============================================
   TachoViewer - Estilos principales
   ============================================ */

:root {
    /* Paleta de colores - Tema oscuro profesional */
    --bg-primary: #0a0e14;
    --bg-secondary: #0f1419;
    --bg-tertiary: #151b23;
    --bg-card: #1a212b;
    --bg-card-hover: #1f2937;
    
    /* Acentos */
    --accent-primary: #00d4ff;
    --accent-secondary: #7c3aed;
    --accent-success: #10b981;
    --accent-warning: #f59e0b;
    --accent-danger: #ef4444;
    --accent-info: #3b82f6;
    
    /* Gradientes */
    --gradient-primary: linear-gradient(135deg, #00d4ff 0%, #7c3aed 100%);
    --gradient-success: linear-gradient(135deg, #10b981 0%, #059669 100%);
    --gradient-warning: linear-gradient(135deg, #f59e0b 0%, #d97706 100%);
    --gradient-danger: linear-gradient(135deg, #ef4444 0%, #dc2626 100%);
    
    /* Texto */
    --text-primary: #f0f4f8;
    --text-secondary: #94a3b8;
    --text-muted: #64748b;
    --text-inverse: #0a0e14;
    
    /* Bordes */
    --border-color: rgba(148, 163, 184, 0.1);
    --border-color-hover: rgba(148, 163, 184, 0.2);
    
    /* Sombras */
    --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.3);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.4);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.5);
    --shadow-xl: 0 25px 50px -12px rgba(0, 0, 0, 0.6);
    --shadow-glow: 0 0 40px rgba(0, 212, 255, 0.15);
    
    /* Espaciado */
    --spacing-xs: 0.25rem;
    --spacing-sm: 0.5rem;
    --spacing-md: 1rem;
    --spacing-lg: 1.5rem;
    --spacing-xl: 2rem;
    --spacing-2xl: 3rem;
    
    /* Bordes */
    --radius-sm: 6px;
    --radius-md: 10px;
    --radius-lg: 16px;
    --radius-xl: 24px;
    --radius-full: 9999px;
    
    /* Transiciones */
    --transition-fast: 150ms ease;
    --transition-normal: 250ms ease;
    --transition-slow: 400ms ease;
    
    /* Tipografía */
    --font-sans: 'Outfit', -apple-system, BlinkMacSystemFont, sans-serif;
    --font-mono: 'JetBrains Mono', monospace;
    
    /* Sidebar */
    --sidebar-width: 280px;
}

/* Reset y base */
*, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    font-size: 16px;
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-sans);
    background-color: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.6;
    min-height: 100vh;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

.app {
    min-height: 100vh;
}

/* ============================================
   VISTAS DE AUTENTICACIÓN (Login y Verificación)
   ============================================ */

.auth-view {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    overflow: hidden;
}

.auth-background {
    position: absolute;
    inset: 0;
    pointer-events: none;
}

.bg-gradient {
    position: absolute;
    inset: 0;
    background: 
        radial-gradient(ellipse 80% 50% at 50% -20%, rgba(0, 212, 255, 0.15), transparent),
        radial-gradient(ellipse 60% 40% at 80% 100%, rgba(124, 58, 237, 0.1), transparent);
}

.bg-pattern {
    position: absolute;
    inset: 0;
    background-image: 
        linear-gradient(rgba(148, 163, 184, 0.03) 1px, transparent 1px),
        linear-gradient(90deg, rgba(148, 163, 184, 0.03) 1px, transparent 1px);
    background-size: 50px 50px;
}

.bg-glow {
    position: absolute;
    border-radius: 50%;
    filter: blur(100px);
    animation: pulse-glow 8s ease-in-out infinite;
}

.glow-1 {
    width: 400px;
    height: 400px;
    background: rgba(0, 212, 255, 0.08);
    top: -100px;
    left: -100px;
}

.glow-2 {
    width: 300px;
    height: 300px;
    background: rgba(124, 58, 237, 0.08);
    bottom: -50px;
    right: -50px;
    animation-delay: -4s;
}

@keyframes pulse-glow {
    0%, 100% { opacity: 0.5; transform: scale(1); }
    50% { opacity: 1; transform: scale(1.1); }
}

.auth-container {
    display: flex;
    align-items: center;
    gap: var(--spacing-2xl);
    padding: var(--spacing-xl);
    max-width: 1000px;
    width: 100%;
    z-index: 1;
}

.auth-card {
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-xl);
    padding: var(--spacing-2xl);
    width: 100%;
    max-width: 420px;
    box-shadow: var(--shadow-xl), var(--shadow-glow);
    position: relative;
}

.verify-card {
    max-width: 460px;
}

.back-btn {
    position: absolute;
    top: var(--spacing-lg);
    left: var(--spacing-lg);
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    background: none;
    border: none;
    color: var(--text-secondary);
    cursor: pointer;
    font-size: 0.9rem;
    transition: color var(--transition-fast);
}

.back-btn:hover {
    color: var(--accent-primary);
}

.back-btn svg {
    width: 18px;
    height: 18px;
}

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

.auth-logo {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-md);
}

.logo-circle {
    width: 80px;
    height: 80px;
    background: var(--gradient-primary);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 0 30px rgba(0, 212, 255, 0.3);
}

.logo-circle svg,
.logo-circle i {
    width: 40px;
    height: 40px;
    font-size: 2.2rem;
    color: var(--bg-primary);
}

.auth-logo h1 {
    font-size: 1.8rem;
    font-weight: 700;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.auth-subtitle {
    color: var(--text-secondary);
    font-size: 0.95rem;
}

/* Verificación icono */
.verify-icon {
    position: relative;
    display: flex;
    justify-content: center;
    margin-bottom: var(--spacing-lg);
}

.verify-circle {
    width: 100px;
    height: 100px;
    background: var(--gradient-primary);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    z-index: 1;
}

.verify-circle svg {
    width: 50px;
    height: 50px;
    color: var(--bg-primary);
}

.verify-pulse {
    position: absolute;
    width: 100px;
    height: 100px;
    border: 2px solid var(--accent-primary);
    border-radius: 50%;
    animation: pulse-ring 2s ease-out infinite;
}

@keyframes pulse-ring {
    0% { transform: scale(1); opacity: 1; }
    100% { transform: scale(1.5); opacity: 0; }
}

/* Formularios */
.auth-form {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-lg);
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

.form-group label {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    font-size: 0.9rem;
    color: var(--text-secondary);
    font-weight: 500;
}

.form-group label svg {
    width: 16px;
    height: 16px;
    opacity: 0.7;
}

.form-group input {
    background: var(--bg-tertiary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    padding: var(--spacing-md) var(--spacing-lg);
    font-size: 1rem;
    color: var(--text-primary);
    font-family: var(--font-sans);
    transition: all var(--transition-fast);
}

.form-group input::placeholder {
    color: var(--text-muted);
}

.form-group input:focus {
    outline: none;
    border-color: var(--accent-primary);
    box-shadow: 0 0 0 3px rgba(0, 212, 255, 0.1);
}

.password-input {
    position: relative;
}

.password-input input {
    width: 100%;
    padding-right: 48px;
}

.toggle-password {
    position: absolute;
    right: 12px;
    top: 50%;
    transform: translateY(-50%);
    background: none;
    border: none;
    color: var(--text-muted);
    cursor: pointer;
    padding: 4px;
}

.toggle-password:hover {
    color: var(--text-secondary);
}

.toggle-password svg {
    width: 20px;
    height: 20px;
}

/* Input de código de verificación */
.code-input-group {
    display: flex;
    justify-content: center;
    gap: var(--spacing-sm);
    align-items: center;
}

.code-digit {
    width: 52px;
    height: 64px;
    background: var(--bg-tertiary);
    border: 2px solid var(--border-color);
    border-radius: var(--radius-md);
    font-family: var(--font-mono);
    font-size: 1.5rem;
    font-weight: 600;
    text-align: center;
    color: var(--text-primary);
    transition: all var(--transition-fast);
}

.code-digit:focus {
    outline: none;
    border-color: var(--accent-primary);
    box-shadow: 0 0 0 3px rgba(0, 212, 255, 0.1);
}

.code-digit.filled {
    border-color: var(--accent-success);
    background: rgba(16, 185, 129, 0.1);
}

.code-separator {
    color: var(--text-muted);
    font-size: 1.5rem;
    font-weight: 300;
}

/* Botones */
.btn-primary {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-sm);
    background: var(--gradient-primary);
    border: none;
    border-radius: var(--radius-md);
    padding: var(--spacing-md) var(--spacing-xl);
    font-size: 1rem;
    font-weight: 600;
    color: var(--bg-primary);
    cursor: pointer;
    transition: all var(--transition-fast);
    position: relative;
    overflow: hidden;
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 25px -5px rgba(0, 212, 255, 0.4);
}

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

.btn-primary:disabled {
    opacity: 0.7;
    cursor: not-allowed;
    transform: none;
}

.btn-lg {
    padding: var(--spacing-lg) var(--spacing-xl);
    font-size: 1.05rem;
}

.btn-arrow {
    width: 20px;
    height: 20px;
    transition: transform var(--transition-fast);
}

.btn-primary:hover .btn-arrow {
    transform: translateX(4px);
}

.btn-loader {
    display: flex;
}

.spinner {
    width: 24px;
    height: 24px;
    animation: spin 1s linear infinite;
}

.spinner circle {
    stroke: currentColor;
    stroke-dasharray: 60;
    stroke-dashoffset: 45;
}

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

.btn-link {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-sm);
    background: none;
    border: none;
    color: var(--accent-primary);
    font-size: 0.9rem;
    cursor: pointer;
    transition: color var(--transition-fast);
}

.btn-link:hover {
    color: var(--text-primary);
}

.btn-link svg {
    width: 16px;
    height: 16px;
}

.btn-secondary {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-sm) var(--spacing-lg);
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    color: var(--text-primary);
    font-size: 0.9rem;
    cursor: pointer;
    transition: all var(--transition-fast);
}

.btn-secondary:hover {
    background: var(--bg-card-hover);
    border-color: var(--accent-primary);
}

.btn-icon {
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    color: var(--text-secondary);
    cursor: pointer;
    transition: all var(--transition-fast);
}

.btn-icon:hover {
    background: var(--bg-card-hover);
    color: var(--accent-primary);
    border-color: var(--accent-primary);
}

.btn-icon svg {
    width: 20px;
    height: 20px;
}

.btn-logout {
    background: none;
    border: none;
    color: var(--text-muted);
    cursor: pointer;
    padding: var(--spacing-sm);
    border-radius: var(--radius-sm);
    transition: all var(--transition-fast);
}

.btn-logout:hover {
    color: var(--accent-danger);
    background: rgba(239, 68, 68, 0.1);
}

.btn-logout svg {
    width: 20px;
    height: 20px;
}

/* Resend section */
.resend-section {
    text-align: center;
    padding-top: var(--spacing-md);
    border-top: 1px solid var(--border-color);
}

.resend-section p {
    color: var(--text-muted);
    font-size: 0.85rem;
    margin-bottom: var(--spacing-sm);
}

/* Alertas */
.alert {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    padding: var(--spacing-md) var(--spacing-lg);
    border-radius: var(--radius-md);
    font-size: 0.9rem;
}

.alert svg {
    width: 20px;
    height: 20px;
    flex-shrink: 0;
}

.alert-warning {
    background: rgba(245, 158, 11, 0.15);
    border: 1px solid var(--accent-warning);
    color: var(--accent-warning);
}

.alert-warning svg {
    color: var(--accent-warning);
}

.alert-error {
    background: rgba(239, 68, 68, 0.1);
    border: 1px solid rgba(239, 68, 68, 0.3);
    color: var(--accent-danger);
}

.alert-success {
    background: rgba(16, 185, 129, 0.1);
    border: 1px solid rgba(16, 185, 129, 0.3);
    color: var(--accent-success);
}

.auth-footer {
    text-align: center;
    margin-top: var(--spacing-xl);
    padding-top: var(--spacing-lg);
    border-top: 1px solid var(--border-color);
}

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

/* Features */
.auth-features {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xl);
    flex: 1;
    max-width: 400px;
}

.feature {
    display: flex;
    align-items: flex-start;
    gap: var(--spacing-lg);
}

.feature-icon {
    width: 48px;
    height: 48px;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.feature-icon svg,
.feature-icon i {
    width: 24px;
    height: 24px;
    font-size: 1.4rem;
    color: var(--accent-primary);
}

.feature-text h3 {
    font-size: 1rem;
    font-weight: 600;
    margin-bottom: var(--spacing-xs);
}

.feature-text p {
    color: var(--text-secondary);
    font-size: 0.9rem;
}

@media (max-width: 900px) {
    .auth-container {
        flex-direction: column;
    }
    
    .auth-features {
        display: none;
    }
    
    .auth-card {
        max-width: 100%;
    }
}

/* ============================================
   LAYOUT PRINCIPAL DE LA APP
   ============================================ */

.app-layout {
    display: flex;
    min-height: 100vh;
}

/* Sidebar */
.sidebar {
    width: var(--sidebar-width);
    background: var(--bg-secondary);
    border-right: 1px solid var(--border-color);
    display: flex;
    flex-direction: column;
    position: fixed;
    top: 0;
    left: 0;
    height: 100vh;
    z-index: 100;
    transition: transform var(--transition-normal);
}

.sidebar-header {
    padding: var(--spacing-lg);
    border-bottom: 1px solid var(--border-color);
}

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

.logo-icon {
    width: 40px;
    height: 40px;
    background: var(--gradient-primary);
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
}

.logo-icon svg,
.logo-icon i {
    width: 22px;
    height: 22px;
    font-size: 1.3rem;
    color: var(--bg-primary);
}

.logo-text {
    font-size: 1.25rem;
    font-weight: 700;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.sidebar-nav {
    flex: 1;
    padding: var(--spacing-md);
    overflow-y: auto;
}

.nav-section {
    margin-bottom: var(--spacing-lg);
}

.nav-section-title {
    display: block;
    font-size: 0.7rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--text-muted);
    padding: var(--spacing-sm) var(--spacing-md);
    margin-bottom: var(--spacing-xs);
}

.nav-item {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    padding: var(--spacing-md);
    color: var(--text-secondary);
    text-decoration: none;
    border-radius: var(--radius-md);
    margin-bottom: 2px;
    transition: all var(--transition-fast);
    font-weight: 500;
    font-size: 0.95rem;
    width: 100%;
    text-align: left;
    font-family: inherit;
}

/* Reset completo de estilos para botones en la navbar */
button.nav-item {
    border: none;
    background: transparent;
    padding: var(--spacing-md);
    margin: 0 0 2px 0;
    font: inherit;
    color: inherit;
    text-align: inherit;
    cursor: pointer;
    outline: none;
    -webkit-appearance: none;
    -moz-appearance: none;
    appearance: none;
    box-shadow: none;
    width: 100%;
}

button.nav-item:focus {
    outline: none;
    box-shadow: none;
}

button.nav-item:focus-visible {
    outline: 2px solid var(--accent-primary);
    outline-offset: 2px;
    border-radius: var(--radius-md);
}

.nav-item svg,
.nav-item i {
    width: 20px;
    height: 20px;
    font-size: 1.2rem;
    flex-shrink: 0;
}

.nav-item:hover {
    background: var(--bg-card);
    color: var(--text-primary);
    transform: translateX(2px);
}

.nav-item:active {
    transform: translateX(0);
    opacity: 0.9;
}

.nav-item.active {
    background: var(--gradient-primary);
    color: var(--bg-primary);
}

.nav-badge {
    margin-left: auto;
    background: var(--bg-tertiary);
    padding: 2px 8px;
    border-radius: var(--radius-full);
    font-size: 0.75rem;
    font-weight: 600;
    color: var(--text-secondary);
}

.nav-item.active .nav-badge {
    background: rgba(0, 0, 0, 0.2);
    color: inherit;
}

.nav-badge.warning {
    background: rgba(245, 158, 11, 0.15);
    color: var(--accent-warning);
}

.nav-badge.danger {
    background: rgba(239, 68, 68, 0.15);
    color: var(--accent-danger);
}

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

.user-card {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    padding: var(--spacing-sm);
    background: var(--bg-tertiary);
    border-radius: var(--radius-md);
}

.user-avatar {
    width: 40px;
    height: 40px;
    background: var(--gradient-primary);
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 600;
    color: var(--bg-primary);
    font-size: 0.9rem;
}

.user-info {
    flex: 1;
    min-width: 0;
    display: flex;
    flex-direction: column;
}

.user-email {
    font-size: 0.85rem;
    color: var(--text-primary);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.user-role {
    font-size: 0.75rem;
    color: var(--text-muted);
}

/* Overlay móvil */
.sidebar-overlay {
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.6);
    z-index: 99;
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition-normal);
}

.sidebar-overlay.active {
    opacity: 1;
    visibility: visible;
}

/* Main wrapper */
.main-wrapper {
    flex: 1;
    margin-left: var(--sidebar-width);
    display: flex;
    flex-direction: column;
    min-height: 100vh;
}

.top-header {
    display: flex;
    align-items: center;
    gap: var(--spacing-lg);
    padding: var(--spacing-md) var(--spacing-xl);
    background: var(--bg-secondary);
    border-bottom: 1px solid var(--border-color);
    position: sticky;
    top: 0;
    z-index: 50;
}

.menu-toggle {
    display: none;
    background: none;
    border: none;
    color: var(--text-primary);
    cursor: pointer;
    padding: var(--spacing-sm);
}

.menu-toggle svg {
    width: 24px;
    height: 24px;
}

.header-title {
    flex: 1;
}

.header-title h1 {
    font-size: 1.5rem;
    font-weight: 600;
}

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

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

.last-update {
    font-size: 0.8rem;
    color: var(--text-muted);
}

.main-content {
    flex: 1;
    padding: var(--spacing-xl);
}

/* Responsive sidebar */
@media (max-width: 1024px) {
    .sidebar {
        transform: translateX(-100%);
    }
    
    .sidebar.open {
        transform: translateX(0);
    }
    
    .main-wrapper {
        margin-left: 0;
    }
    
    .menu-toggle {
        display: flex;
    }
}

/* ============================================
   DASHBOARD
   ============================================ */

.dashboard-grid {
    display: grid;
    gap: var(--spacing-xl);
}

/* Resumen de estadísticas */
.stats-row {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: var(--spacing-lg);
}

.stat-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: var(--spacing-xl);
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
    transition: all var(--transition-fast);
}

.stat-card:hover {
    border-color: var(--border-color-hover);
    transform: translateY(-2px);
}

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

.stat-icon {
    width: 48px;
    height: 48px;
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
}

.stat-icon svg {
    width: 24px;
    height: 24px;
}

.stat-icon.blue { background: rgba(0, 212, 255, 0.15); color: var(--accent-primary); }
.stat-icon.green { background: rgba(16, 185, 129, 0.15); color: var(--accent-success); }
.stat-icon.yellow { background: rgba(245, 158, 11, 0.15); color: var(--accent-warning); }
.stat-icon.red { background: rgba(239, 68, 68, 0.15); color: var(--accent-danger); }
.stat-icon.purple { background: rgba(124, 58, 237, 0.15); color: var(--accent-secondary); }

.stat-trend {
    display: flex;
    align-items: center;
    gap: 4px;
    font-size: 0.8rem;
    font-weight: 500;
}

.stat-trend.up { color: var(--accent-success); }
.stat-trend.down { color: var(--accent-danger); }

.stat-trend svg {
    width: 14px;
    height: 14px;
}

.stat-value {
    font-size: 2.5rem;
    font-weight: 700;
    line-height: 1;
}

.stat-label {
    color: var(--text-secondary);
    font-size: 0.9rem;
}

/* Secciones del dashboard */
.dashboard-section {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    overflow: hidden;
}

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

.section-title {
    font-size: 1.1rem;
    font-weight: 600;
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.section-title svg {
    width: 20px;
    height: 20px;
    color: var(--accent-primary);
}

.section-actions {
    display: flex;
    gap: var(--spacing-sm);
}

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

/* Grid de dos columnas */
.two-column-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--spacing-xl);
}

@media (max-width: 1200px) {
    .two-column-grid {
        grid-template-columns: 1fr;
    }
}

/* Listas de alertas/infracciones */
.alert-list {
    display: flex;
    flex-direction: column;
}

.alert-item {
    display: flex;
    align-items: flex-start;
    gap: var(--spacing-md);
    padding: var(--spacing-md);
    border-bottom: 1px solid var(--border-color);
    transition: background var(--transition-fast);
}

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

.alert-item:hover {
    background: var(--bg-tertiary);
}

.alert-indicator {
    width: 10px;
    height: 10px;
    border-radius: 50%;
    margin-top: 6px;
    flex-shrink: 0;
}

.alert-indicator.warning { background: var(--accent-warning); }
.alert-indicator.danger { background: var(--accent-danger); }
.alert-indicator.info { background: var(--accent-info); }

.alert-content {
    flex: 1;
    min-width: 0;
}

.alert-title {
    font-weight: 500;
    margin-bottom: 2px;
}

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

.alert-meta {
    font-size: 0.75rem;
    color: var(--text-muted);
    margin-top: 4px;
}

/* Límites/Progreso */
.limits-list {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
}

.limit-item {
    padding: var(--spacing-md);
    background: var(--bg-tertiary);
    border-radius: var(--radius-md);
}

.limit-header {
    display: flex;
    justify-content: space-between;
    margin-bottom: var(--spacing-sm);
}

.limit-label {
    font-weight: 500;
    font-size: 0.9rem;
}

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

.limit-bar {
    height: 8px;
    background: var(--bg-card);
    border-radius: var(--radius-full);
    overflow: hidden;
}

.limit-progress {
    height: 100%;
    border-radius: var(--radius-full);
    transition: width var(--transition-slow);
}

.limit-progress.safe { background: var(--gradient-success); }
.limit-progress.warning { background: var(--gradient-warning); }
.limit-progress.danger { background: var(--gradient-danger); }

/* Data lists */
.data-list {
    display: flex;
    flex-direction: column;
}

.data-list-item {
    display: flex;
    align-items: center;
    gap: var(--spacing-lg);
    padding: var(--spacing-lg);
    border-bottom: 1px solid var(--border-color);
    transition: all var(--transition-fast);
}

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

.data-list-item:hover {
    background: var(--bg-tertiary);
}

.item-icon {
    width: 48px;
    height: 48px;
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.item-icon svg {
    width: 24px;
    height: 24px;
}

.item-info {
    flex: 1;
    min-width: 0;
}

.item-title {
    font-weight: 600;
    margin-bottom: 2px;
}

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

.item-meta {
    display: flex;
    gap: var(--spacing-lg);
}

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

.meta-value {
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--accent-primary);
}

.meta-label {
    font-size: 0.7rem;
    color: var(--text-muted);
    text-transform: uppercase;
}

.item-actions {
    display: flex;
    gap: var(--spacing-sm);
}

/* Estados vacíos */
.empty-state {
    text-align: center;
    padding: var(--spacing-2xl);
    color: var(--text-muted);
}

.empty-state svg {
    width: 64px;
    height: 64px;
    margin-bottom: var(--spacing-lg);
    opacity: 0.5;
}

.empty-state h3 {
    color: var(--text-secondary);
    margin-bottom: var(--spacing-sm);
    font-size: 1.1rem;
}

.empty-state p {
    font-size: 0.9rem;
    margin-bottom: var(--spacing-lg);
}

/* Upload */
.upload-container {
    max-width: 600px;
    margin: 0 auto;
}

.upload-box {
    border: 2px dashed var(--border-color);
    border-radius: var(--radius-lg);
    padding: var(--spacing-2xl);
    text-align: center;
    cursor: pointer;
    transition: all var(--transition-fast);
}

.upload-box:hover,
.upload-box.dragover {
    border-color: var(--accent-primary);
    background: rgba(0, 212, 255, 0.05);
}

.upload-icon {
    width: 64px;
    height: 64px;
    margin: 0 auto var(--spacing-lg);
    background: var(--bg-tertiary);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
}

.upload-icon svg {
    width: 32px;
    height: 32px;
    color: var(--accent-primary);
}

.upload-box h3 {
    font-size: 1.2rem;
    margin-bottom: var(--spacing-sm);
}

.upload-box p {
    color: var(--text-secondary);
    margin-bottom: var(--spacing-sm);
}

.upload-formats {
    font-size: 0.8rem;
    color: var(--text-muted);
}

.upload-status {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-md);
    padding: var(--spacing-lg);
    color: var(--text-secondary);
}

.loading-spinner {
    width: 24px;
    height: 24px;
    border: 3px solid var(--border-color);
    border-top-color: var(--accent-primary);
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

/* Tabla de archivos */
.files-table {
    width: 100%;
    border-collapse: collapse;
}

.files-table th,
.files-table td {
    padding: var(--spacing-md);
    text-align: left;
    border-bottom: 1px solid var(--border-color);
}

.files-table th {
    font-size: 0.8rem;
    font-weight: 600;
    text-transform: uppercase;
    color: var(--text-muted);
    background: var(--bg-tertiary);
}

.files-table td {
    font-size: 0.9rem;
}

.files-table tr:hover td {
    background: var(--bg-tertiary);
}

/* Utilidades */
[hidden] {
    display: none !important;
}

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

.info-item {
    display: flex;
    flex-direction: column;
    gap: 4px;
    padding: var(--spacing-sm);
    background: var(--bg-tertiary);
    border-radius: var(--radius-sm);
}

.info-label {
    font-size: 0.75rem;
    color: var(--text-muted);
    text-transform: uppercase;
}

.info-value {
    font-weight: 500;
    color: var(--text-primary);
}

/* Status badges */
.status-badge {
    padding: 4px 10px;
    border-radius: var(--radius-full);
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
}

.status-active {
    background: rgba(16, 185, 129, 0.15);
    color: var(--accent-success);
}

.status-inactive {
    background: rgba(148, 163, 184, 0.15);
    color: var(--text-muted);
}

/* Stat icons with Bootstrap Icons */
.stat-icon i {
    font-size: 1.4rem;
}

/* Text utilities */
.text-muted {
    color: var(--text-muted);
    font-size: 0.9rem;
    text-align: center;
    padding: var(--spacing-lg);
}

/* Alert info */
.alert-info {
    background: rgba(0, 212, 255, 0.1);
    border: 1px solid rgba(0, 212, 255, 0.3);
}

/* Responsive info grid */
@media (max-width: 600px) {
    .info-grid {
        grid-template-columns: 1fr;
    }
}

/* Process button */
.btn-primary i {
    font-size: 1rem;
}

/* ============================================
   Compliance Analysis Styles
   ============================================ */

.compliance-summary {
    background: var(--bg-card);
    border-radius: var(--radius-lg);
    padding: var(--spacing-lg);
    margin-bottom: var(--spacing-lg);
    border: 1px solid var(--border-color);
}

.compliance-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--spacing-lg);
    flex-wrap: wrap;
    gap: var(--spacing-sm);
}

.compliance-header h3 {
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--text-primary);
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.compliance-header h3 i {
    color: var(--accent-primary);
}

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

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

.stat-box {
    background: var(--bg-tertiary);
    border-radius: var(--radius-md);
    padding: var(--spacing-md);
    text-align: center;
    border: 2px solid transparent;
    transition: all 0.3s ease;
}

.stat-box.danger {
    border-color: var(--accent-danger);
    background: rgba(239, 68, 68, 0.1);
}

.stat-box.warning {
    border-color: var(--accent-warning);
    background: rgba(245, 158, 11, 0.1);
}

.stat-box.caution {
    border-color: #fbbf24;
    background: rgba(251, 191, 36, 0.1);
}

.stat-box.ok {
    border-color: var(--accent-success);
    background: rgba(16, 185, 129, 0.1);
}

.stat-box .stat-value {
    font-size: 2rem;
    font-weight: 700;
}

.stat-box.danger .stat-value { color: var(--accent-danger); }
.stat-box.warning .stat-value { color: var(--accent-warning); }
.stat-box.caution .stat-value { color: #fbbf24; }
.stat-box.ok .stat-value { color: var(--accent-success); }

.stat-box .stat-label {
    font-size: 0.8rem;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.compliance-categories {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: var(--spacing-sm);
}

.category-item {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-sm);
    background: var(--bg-tertiary);
    border-radius: var(--radius-sm);
    font-size: 0.9rem;
}

.category-item i {
    color: var(--accent-primary);
}

.category-item strong {
    margin-left: auto;
}

.text-danger {
    color: var(--accent-danger) !important;
}

/* Alert Items Enhanced */
.alert-item {
    display: flex;
    gap: var(--spacing-md);
    padding: var(--spacing-md);
    background: var(--bg-tertiary);
    border-radius: var(--radius-md);
    margin-bottom: var(--spacing-sm);
    border-left: 4px solid var(--border-color);
    transition: all 0.2s ease;
}

.alert-item.danger {
    border-left-color: var(--accent-danger);
    background: rgba(239, 68, 68, 0.05);
}

.alert-item.warning {
    border-left-color: var(--accent-warning);
    background: rgba(245, 158, 11, 0.05);
}

.alert-item.caution {
    border-left-color: #fbbf24;
    background: rgba(251, 191, 36, 0.05);
}

.alert-indicator {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    flex-shrink: 0;
    margin-top: 4px;
}

.alert-indicator.danger { background: var(--accent-danger); }
.alert-indicator.warning { background: var(--accent-warning); }
.alert-indicator.caution { background: #fbbf24; }
.alert-indicator.info { background: var(--accent-info); }

.alert-content {
    flex: 1;
}

.alert-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--spacing-xs);
    flex-wrap: wrap;
    gap: var(--spacing-sm);
}

.alert-title {
    font-weight: 600;
    color: var(--text-primary);
}

.alert-badge {
    padding: 2px 8px;
    border-radius: 20px;
    font-size: 0.7rem;
    font-weight: 600;
    text-transform: uppercase;
}

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

.alert-badge.warning {
    background: var(--accent-warning);
    color: #1a1a1a;
}

.alert-badge.caution {
    background: #fbbf24;
    color: #1a1a1a;
}

.alert-description {
    font-size: 0.9rem;
    color: var(--text-secondary);
    margin-bottom: var(--spacing-xs);
}

.alert-meta {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-md);
    font-size: 0.8rem;
    color: var(--text-muted);
}

.alert-meta span {
    display: flex;
    align-items: center;
    gap: 4px;
}

.alert-meta i {
    font-size: 0.9rem;
}

.infraction-tag {
    background: rgba(239, 68, 68, 0.2);
    color: var(--accent-danger);
    padding: 2px 8px;
    border-radius: var(--radius-sm);
    font-weight: 600;
}

/* Limits Section */
.limits-section {
    margin-top: var(--spacing-lg);
}

.regulatory-info {
    background: rgba(0, 212, 255, 0.05);
    border: 1px solid rgba(0, 212, 255, 0.2);
    border-radius: var(--radius-md);
    padding: var(--spacing-md);
    margin-bottom: var(--spacing-lg);
}

.regulatory-info p {
    margin-bottom: var(--spacing-sm);
    color: var(--text-primary);
}

.regulatory-info ul {
    margin: 0;
    padding-left: var(--spacing-lg);
}

.regulatory-info li {
    color: var(--text-secondary);
    font-size: 0.9rem;
    line-height: 1.8;
}

.limits-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: var(--spacing-md);
}

.driver-limits-card {
    background: var(--bg-tertiary);
    border-radius: var(--radius-md);
    padding: var(--spacing-md);
    border: 1px solid var(--border-color);
}

.driver-header {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-md);
    font-weight: 600;
    color: var(--text-primary);
}

.driver-header i {
    font-size: 1.5rem;
    color: var(--accent-primary);
}

.limit-bars {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

.limit-bar-container {
    background: var(--bg-card);
    border-radius: var(--radius-sm);
    padding: var(--spacing-sm);
}

.limit-bar-header {
    display: flex;
    justify-content: space-between;
    font-size: 0.8rem;
    margin-bottom: 4px;
}

.limit-label {
    color: var(--text-secondary);
}

.limit-value {
    color: var(--text-primary);
    font-weight: 500;
}

.limit-bar-track {
    height: 8px;
    background: var(--bg-primary);
    border-radius: 4px;
    overflow: hidden;
}

.limit-bar-fill {
    height: 100%;
    border-radius: 4px;
    transition: width 0.5s ease;
}

.limit-bar-fill.ok { background: var(--accent-success); }
.limit-bar-fill.caution { background: #fbbf24; }
.limit-bar-fill.warning { background: var(--accent-warning); }
.limit-bar-fill.exceeded { background: var(--accent-danger); }

/* Empty state success */
.empty-state.success {
    text-align: center;
    padding: var(--spacing-2xl);
}

.empty-state.success h3 {
    color: var(--accent-success);
    margin-top: var(--spacing-md);
}

/* Tabla de incidentes */
.table-container {
    overflow-x: auto;
    margin: var(--spacing-md) 0;
    border-radius: var(--radius-md);
    border: 1px solid var(--border-color);
}

.incidents-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.875rem;
    background: var(--bg-card);
}

.incidents-table thead {
    background: var(--bg-tertiary);
    border-bottom: 2px solid var(--border-color);
}

.incidents-table th {
    padding: 12px 10px;
    text-align: left;
    font-weight: 600;
    color: var(--text-primary);
    font-size: 0.8rem;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    border-right: 1px solid var(--border-color);
}

.incidents-table th:last-child {
    border-right: none;
}

.incidents-table td {
    padding: 10px;
    border-bottom: 1px solid var(--border-color);
    border-right: 1px solid var(--border-color);
    color: var(--text-secondary);
    font-size: 0.85rem;
}

.incidents-table td:last-child {
    border-right: none;
}

.incidents-table tbody tr {
    transition: background-color var(--transition-fast);
}

.incidents-table tbody tr:hover {
    background: var(--bg-card-hover);
}

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

/* Paginación */
.pagination {
    display: flex;
    justify-content: flex-end;
    align-items: center;
    gap: var(--spacing-sm);
    font-size: 0.875rem;
    color: var(--text-secondary);
}

.pagination .btn-link {
    background: transparent;
    border: none;
    color: var(--accent-primary);
    cursor: pointer;
    padding: 4px 8px;
    border-radius: var(--radius-sm);
    transition: all var(--transition-fast);
    font-size: 0.875rem;
}

.pagination .btn-link:hover {
    background: var(--bg-tertiary);
    color: var(--accent-primary);
}

/* Leyenda */
.legend-section {
    background: var(--bg-tertiary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    padding: var(--spacing-md);
    margin-top: var(--spacing-lg);
}

.legend-section h4 {
    margin-bottom: var(--spacing-md);
    color: var(--text-primary);
    font-size: 1rem;
}

.legend-grid {
    display: table;
    width: 100%;
}

.legend-row {
    display: table-row;
}

.legend-label {
    display: table-cell;
    padding: 6px 10px;
    font-weight: 600;
    color: var(--text-primary);
    width: 30%;
}

.legend-value {
    display: table-cell;
    padding: 6px 10px;
    color: var(--text-secondary);
}

/* Loading state */
.loading-state {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: var(--spacing-2xl);
    color: var(--text-secondary);
}

.loading-state .spinner {
    width: 40px;
    height: 40px;
    border: 3px solid var(--border-color);
    border-top-color: var(--accent-primary);
    border-radius: 50%;
    animation: spin 1s linear infinite;
    margin-bottom: var(--spacing-md);
}

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

@media (max-width: 768px) {
    .compliance-stats {
        grid-template-columns: 1fr;
    }
    
    .limits-grid {
        grid-template-columns: 1fr;
    }
    
    .compliance-categories {
        grid-template-columns: 1fr;
    }
    
    .incidents-table {
        font-size: 0.75rem;
    }
    
    .incidents-table th,
    .incidents-table td {
        padding: 8px 6px;
    }
    
    .table-container {
        overflow-x: scroll;
    }
}