/**
 * EXPRESSATECH CARGO - Estilos Principales
 * Sistema de Gestión Logística Miami - Venezuela
 * Paleta: Negro (#000000), Amarillo (#FFC425), Blanco (#FFFFFF)
 */

/* =====================================================
   RESET Y VARIABLES
   ===================================================== */
:root {
    /* Colores principales */
    --negro-primary: #000000;
    --negro-light: #1a1a1a;
    --negro-card: #2d2d2d;
    --amarillo-primary: #FFC425;
    --amarillo-dark: #FFB000;
    --amarillo-light: #FFD700;
    --blanco: #FFFFFF;
    --gris-text: #CCCCCC;
    --gris-light: #F5F5F5;
    
    /* Colores de estado */
    --success: #4CAF50;
    --danger: #F44336;
    --warning: #FF9800;
    --info: #2196F3;
    
    /* Sombras */
    --shadow-sm: 0 2px 4px rgba(0,0,0,0.1);
    --shadow-md: 0 4px 6px rgba(0,0,0,0.2);
    --shadow-lg: 0 10px 25px rgba(0,0,0,0.3);
    --shadow-yellow: 0 0 20px rgba(255, 196, 37, 0.3);
    
    /* Espaciado */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 1.5rem;
    --spacing-lg: 2rem;
    --spacing-xl: 3rem;
    
    /* Tipografía */
    --font-primary: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    --font-size-sm: 0.875rem;
    --font-size-base: 1rem;
    --font-size-lg: 1.125rem;
    --font-size-xl: 1.5rem;
    --font-size-2xl: 2rem;
    
    /* Transiciones */
    --transition-fast: 0.2s ease;
    --transition-normal: 0.3s ease;
    --transition-slow: 0.5s ease;
    
    /* Sidebar */
    --sidebar-width: 260px;
    --sidebar-width-collapsed: 70px;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    font-size: 16px;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

body {
    font-family: var(--font-primary);
    background-color: var(--negro-light);
    color: var(--blanco);
    line-height: 1.6;
    overflow-x: hidden;
}

/* =====================================================
   UTILIDADES GENERALES
   ===================================================== */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-md);
}

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

.text-yellow {
    color: var(--amarillo-primary);
}

.bg-negro {
    background-color: var(--negro-primary);
}

.bg-yellow {
    background-color: var(--amarillo-primary);
}

.hidden {
    display: none !important;
}

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

/* =====================================================
   ANIMACIONES
   ===================================================== */
@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

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

@keyframes pulse {
    0%, 100% {
        transform: scale(1);
    }
    50% {
        transform: scale(1.05);
    }
}

@keyframes flyAcross {
    0% {
        transform: translateX(-100px) translateY(0) rotate(-15deg);
        opacity: 0;
    }
    10% {
        opacity: 1;
    }
    90% {
        opacity: 1;
    }
    100% {
        transform: translateX(calc(100vw + 100px)) translateY(-50px) rotate(-15deg);
        opacity: 0;
    }
}

.fade-in {
    animation: fadeIn 0.6s ease forwards;
}

/* =====================================================
   LANDING PAGE (index.php)
   ===================================================== */
.landing-page {
    min-height: 100vh;
    background: linear-gradient(135deg, var(--negro-primary) 0%, var(--negro-light) 100%);
    position: relative;
    overflow: hidden;
}

.landing-header {
    padding: var(--spacing-lg) 0;
    text-align: center;
}

.landing-logo {
    max-width: 220px;  /* Reducido de 300px a 220px */
    height: auto;
    margin: 0 auto var(--spacing-md);
    filter: drop-shadow(var(--shadow-yellow));
    animation: fadeIn 1s ease;
}

.hero-section {
    min-height: 100vh;  /* Cambiado de 80vh a 100vh */
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: var(--spacing-lg) var(--spacing-md);  /* Reducido padding */
    text-align: center;
    position: relative;
}

.hero-title {
    font-size: var(--font-size-2xl);
    font-weight: 700;
    margin-bottom: var(--spacing-md);
    color: var(--blanco);
    animation: fadeIn 1s ease 0.2s backwards;
}

.hero-title .highlight {
    color: var(--amarillo-primary);
    text-shadow: 0 0 20px rgba(255, 196, 37, 0.5);
}

.hero-subtitle {
    font-size: var(--font-size-lg);
    color: var(--gris-text);
    max-width: 600px;
    margin: 0 auto var(--spacing-lg);
    animation: fadeIn 1s ease 0.4s backwards;
}

.hero-features {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--spacing-md);
    margin: var(--spacing-xl) 0;
    max-width: 900px;
    width: 100%;
    animation: fadeIn 1s ease 0.6s backwards;
}

.feature-card {
    background: var(--negro-card);
    padding: var(--spacing-lg);
    border-radius: 12px;
    border: 2px solid transparent;
    transition: all var(--transition-normal);
}

.feature-card:hover {
    border-color: var(--amarillo-primary);
    transform: translateY(-5px);
    box-shadow: var(--shadow-yellow);
}

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

.feature-title {
    font-size: var(--font-size-lg);
    color: var(--amarillo-primary);
    margin-bottom: var(--spacing-xs);
}

.feature-text {
    color: var(--gris-text);
    font-size: var(--font-size-sm);
}

.hero-cta {
    display: flex;
    gap: var(--spacing-md);
    justify-content: center;
    flex-wrap: wrap;
    animation: fadeIn 1s ease 0.8s backwards;
}

/* =====================================================
   BOTONES
   ===================================================== */
.btn {
    display: inline-block;
    padding: 12px 30px;
    font-size: var(--font-size-base);
    font-weight: 600;
    text-decoration: none;
    border-radius: 8px;
    border: 2px solid transparent;
    cursor: pointer;
    transition: all var(--transition-normal);
    text-align: center;
    position: relative;
    overflow: hidden;
}

.btn:before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 0;
    height: 0;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.2);
    transform: translate(-50%, -50%);
    transition: width 0.6s, height 0.6s;
}

.btn:hover:before {
    width: 300px;
    height: 300px;
}

.btn-primary {
    background: var(--amarillo-primary);
    color: var(--negro-primary);
    border-color: var(--amarillo-primary);
}

.btn-primary:hover {
    background: var(--amarillo-dark);
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(255, 196, 37, 0.4);
}

.btn-secondary {
    background: transparent;
    color: var(--blanco);
    border-color: var(--blanco);
}

.btn-secondary:hover {
    background: var(--blanco);
    color: var(--negro-primary);
}

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

.btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

/* =====================================================
   FORMULARIOS
   ===================================================== */
.form-page {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: var(--spacing-md);
    background: linear-gradient(135deg, var(--negro-primary) 0%, var(--negro-light) 100%);
}

.form-container {
    background: var(--negro-card);
    padding: var(--spacing-xl);
    border-radius: 16px;
    box-shadow: var(--shadow-lg);
    max-width: 450px;
    width: 100%;
    animation: fadeIn 0.6s ease;
}

.form-logo {
    max-width: 200px;
    height: auto;
    margin: 0 auto var(--spacing-lg);
    display: block;
}

.form-title {
    font-size: var(--font-size-xl);
    color: var(--blanco);
    margin-bottom: var(--spacing-xs);
    text-align: center;
}

.form-subtitle {
    color: var(--gris-text);
    text-align: center;
    margin-bottom: var(--spacing-lg);
}

.form-group {
    margin-bottom: var(--spacing-md);
}

.form-label {
    display: block;
    margin-bottom: var(--spacing-xs);
    color: var(--blanco);
    font-weight: 500;
    font-size: var(--font-size-sm);
}

.form-label .required {
    color: var(--danger);
}

.form-input {
    width: 100%;
    padding: 12px 16px;
    font-size: var(--font-size-base);
    border: 2px solid #444;
    border-radius: 8px;
    background: var(--negro-light);
    color: var(--blanco);
    transition: all var(--transition-fast);
}

.form-input:focus {
    outline: none;
    border-color: var(--amarillo-primary);
    box-shadow: 0 0 0 3px rgba(255, 196, 37, 0.1);
}

.form-input::placeholder {
    color: #666;
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-md);
}

.form-error {
    color: var(--danger);
    font-size: var(--font-size-sm);
    margin-top: var(--spacing-xs);
    display: none;
}

.form-group.error .form-input {
    border-color: var(--danger);
}

.form-group.error .form-error {
    display: block;
}

.form-link {
    text-align: center;
    margin-top: var(--spacing-md);
    color: var(--gris-text);
}

.form-link a {
    color: var(--amarillo-primary);
    text-decoration: none;
    font-weight: 600;
}

.form-link a:hover {
    text-decoration: underline;
}

/* =====================================================
   ALERTAS Y MENSAJES
   ===================================================== */
.alert {
    padding: var(--spacing-md);
    border-radius: 8px;
    margin-bottom: var(--spacing-md);
    border-left: 4px solid;
    animation: slideInRight 0.4s ease;
}

.alert-success {
    background: rgba(76, 175, 80, 0.1);
    border-color: var(--success);
    color: var(--success);
}

.alert-danger {
    background: rgba(244, 67, 54, 0.1);
    border-color: var(--danger);
    color: var(--danger);
}

.alert-warning {
    background: rgba(255, 152, 0, 0.1);
    border-color: var(--warning);
    color: var(--warning);
}

.alert-info {
    background: rgba(33, 150, 243, 0.1);
    border-color: var(--info);
    color: var(--info);
}

/* =====================================================
   DASHBOARD LAYOUT
   ===================================================== */
.dashboard-layout {
    display: flex;
    min-height: 100vh;
    background: var(--negro-light);
}

/* =====================================================
   SIDEBAR
   ===================================================== */
.sidebar {
    width: var(--sidebar-width);
    background: var(--negro-primary);
    border-right: 1px solid #333;
    position: fixed;
    left: 0;
    top: 0;
    height: 100vh;
    display: flex;
    flex-direction: column;
    z-index: 1000;
    transition: transform var(--transition-normal);
}

.sidebar-header {
    padding: var(--spacing-lg);
    border-bottom: 1px solid #333;
    text-align: center;
}

.sidebar-logo {
    max-width: 160px;
    height: auto;
    filter: drop-shadow(0 0 10px rgba(255, 196, 37, 0.3));
}

.sidebar-nav {
    flex: 1;
    padding: var(--spacing-md) 0;
    overflow-y: auto;
}

.sidebar-nav::-webkit-scrollbar {
    width: 6px;
}

.sidebar-nav::-webkit-scrollbar-track {
    background: var(--negro-primary);
}

.sidebar-nav::-webkit-scrollbar-thumb {
    background: #444;
    border-radius: 3px;
}

.nav-item {
    display: block;
    padding: 14px var(--spacing-lg);
    color: var(--gris-text);
    text-decoration: none;
    transition: all var(--transition-fast);
    border-left: 3px solid transparent;
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.nav-item:hover {
    background: rgba(255, 196, 37, 0.1);
    color: var(--amarillo-primary);
    border-left-color: var(--amarillo-primary);
}

.nav-item.active {
    background: rgba(255, 196, 37, 0.15);
    color: var(--amarillo-primary);
    border-left-color: var(--amarillo-primary);
    font-weight: 600;
}

.nav-icon {
    font-size: 1.25rem;
    width: 24px;
    text-align: center;
}

.sidebar-footer {
    padding: var(--spacing-lg);
    border-top: 1px solid #333;
}

.user-info {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-md);
}

.user-avatar {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: var(--amarillo-primary);
    color: var(--negro-primary);
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: 1.2rem;
}

.user-details h4 {
    font-size: var(--font-size-sm);
    color: var(--blanco);
    margin-bottom: 2px;
}

.user-details p {
    font-size: 0.75rem;
    color: var(--gris-text);
}

/* =====================================================
   MAIN CONTENT
   ===================================================== */
.main-content {
    flex: 1;
    margin-left: var(--sidebar-width);
    transition: margin-left var(--transition-normal);
}

.top-bar {
    background: var(--negro-card);
    padding: var(--spacing-md) var(--spacing-lg);
    border-bottom: 1px solid #333;
    display: flex;
    justify-content: space-between;
    align-items: center;
    position: sticky;
    top: 0;
    z-index: 100;
}

.top-bar-left h1 {
    font-size: var(--font-size-xl);
    color: var(--blanco);
}

.top-bar-left p {
    color: var(--gris-text);
    font-size: var(--font-size-sm);
}

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

.notification-bell {
    position: relative;
    cursor: pointer;
    font-size: 1.5rem;
    color: var(--gris-text);
    transition: color var(--transition-fast);
}

.notification-bell:hover {
    color: var(--amarillo-primary);
}

.notification-badge {
    position: absolute;
    top: -5px;
    right: -5px;
    background: var(--danger);
    color: var(--blanco);
    border-radius: 50%;
    width: 18px;
    height: 18px;
    font-size: 0.7rem;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
}

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

/* =====================================================
   CARDS Y STATS
   ===================================================== */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-xl);
}

.stat-card {
    background: var(--negro-card);
    padding: var(--spacing-lg);
    border-radius: 12px;
    border: 2px solid transparent;
    transition: all var(--transition-normal);
    position: relative;
    overflow: hidden;
}

.stat-card:before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 4px;
    height: 100%;
    background: var(--amarillo-primary);
    transform: scaleY(0);
    transition: transform var(--transition-normal);
}

.stat-card:hover:before {
    transform: scaleY(1);
}

.stat-card:hover {
    border-color: var(--amarillo-primary);
    transform: translateY(-5px);
    box-shadow: var(--shadow-yellow);
}

.stat-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--spacing-md);
}

.stat-title {
    font-size: var(--font-size-sm);
    color: var(--gris-text);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.stat-icon {
    font-size: 2rem;
    opacity: 0.3;
}

.stat-value {
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--amarillo-primary);
    margin-bottom: var(--spacing-xs);
}

.stat-change {
    font-size: var(--font-size-sm);
    display: flex;
    align-items: center;
    gap: 4px;
}

.stat-change.positive {
    color: var(--success);
}

.stat-change.negative {
    color: var(--danger);
}

/* =====================================================
   TABLAS
   ===================================================== */
.card {
    background: var(--negro-card);
    border-radius: 12px;
    padding: var(--spacing-lg);
    margin-bottom: var(--spacing-lg);
}

.card-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--spacing-md);
    padding-bottom: var(--spacing-md);
    border-bottom: 1px solid #444;
}

.card-title {
    font-size: var(--font-size-lg);
    color: var(--blanco);
}

.table-responsive {
    overflow-x: auto;
}

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

.table thead {
    background: rgba(255, 196, 37, 0.1);
}

.table th {
    padding: 12px;
    text-align: left;
    color: var(--amarillo-primary);
    font-weight: 600;
    font-size: var(--font-size-sm);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.table td {
    padding: 12px;
    color: var(--gris-text);
    border-bottom: 1px solid #333;
}

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

.table tbody tr:hover {
    background: rgba(255, 196, 37, 0.05);
}

.badge {
    display: inline-block;
    padding: 4px 12px;
    border-radius: 20px;
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.badge-success {
    background: rgba(76, 175, 80, 0.2);
    color: var(--success);
}

.badge-warning {
    background: rgba(255, 152, 0, 0.2);
    color: var(--warning);
}

.badge-danger {
    background: rgba(244, 67, 54, 0.2);
    color: var(--danger);
}

.badge-info {
    background: rgba(33, 150, 243, 0.2);
    color: var(--info);
}

/* =====================================================
   LOADING Y ESTADOS
   ===================================================== */
.loading {
    display: inline-block;
    width: 20px;
    height: 20px;
    border: 3px solid rgba(255, 196, 37, 0.3);
    border-radius: 50%;
    border-top-color: var(--amarillo-primary);
    animation: spin 1s linear infinite;
}

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

.empty-state {
    text-align: center;
    padding: var(--spacing-xl);
    color: var(--gris-text);
}

.empty-state-icon {
    font-size: 4rem;
    margin-bottom: var(--spacing-md);
    opacity: 0.3;
}

/* =====================================================
   MOBILE MENU TOGGLE
   ===================================================== */
.menu-toggle {
    display: none;
    background: none;
    border: none;
    color: var(--blanco);
    font-size: 1.5rem;
    cursor: pointer;
    padding: var(--spacing-xs);
}

/* =====================================================
   RESPONSIVE
   ===================================================== */
@media (max-width: 768px) {
    .sidebar {
        transform: translateX(-100%);
    }
    
    .sidebar.active {
        transform: translateX(0);
    }
    
    .main-content {
        margin-left: 0;
    }
    
    .menu-toggle {
        display: block;
    }
    
    .form-row {
        grid-template-columns: 1fr;
    }
    
    .hero-title {
        font-size: var(--font-size-xl);
    }
    
    .hero-cta {
        flex-direction: column;
    }
    
    .btn {
        width: 100%;
    }
    
    .stats-grid {
        grid-template-columns: 1fr;
    }
    
    .table-responsive {
        font-size: var(--font-size-sm);
    }
}

@media (max-width: 480px) {
    :root {
        --font-size-2xl: 1.5rem;
        --font-size-xl: 1.25rem;
    }
    
    .form-container {
        padding: var(--spacing-md);
    }
    
    .content-area {
        padding: var(--spacing-md);
    }
}

/* =====================================================
   ANIMACIÓN DEL AVIÓN (HERO)
   ===================================================== */
.hero-plane {
    position: absolute;
    top: 20%;
    left: -100px;
    width: 80px;
    height: 80px;
    opacity: 0;
    pointer-events: none;
    animation: flyAcross 8s ease-in-out infinite;
    animation-delay: 2s;
}

/* =====================================================
   UTILIDADES ADICIONALES
   ===================================================== */
.text-right {
    text-align: right;
}

.flex {
    display: flex;
}

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

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

.gap-1 { gap: var(--spacing-sm); }
.gap-2 { gap: var(--spacing-md); }

.w-full {
    width: 100%;
}

.cursor-pointer {
    cursor: pointer;
}