@import url('https://fonts.googleapis.com/css2?family=Montserrat:wght@400;500;600;700&display=swap');

/* VARIABLES CSS MEJORADAS */
:root {
    /* Colores principales */
    --color-primary: #256fe8;
    --color-primary-dark: #1a5bc7;
    --color-secondary: #2fa2dc;
    --color-accent: #ffa436;
    --color-accent-dark: #e8912a;

    /* Colores de fondo */
    --color-bg: #f4f7fb;
    --color-lightgray: #eef1f5;
    --color-header: #fff;
    --color-footer: #fff;

    /* Colores de texto */
    --color-darktext: #24364d;
    --color-muted: #6c757d;

    /* Colores de estado */
    --color-success: #28a745;
    --color-success-light: #20c997;
    --color-danger: #dc3545;
    --color-warning: #ffc107;
    --color-warning-light: #ffda6a;
    --color-info: #0dcaf0;
    --color-info-light: #6edff6;

    /* Colores de UI */
    --color-border: #dae1e7;
    --color-btn: #256fe8;

    /* Efectos visuales */
    --card-shadow: 0 6px 32px rgba(37, 111, 232, 0.15);
    --card-shadow-hover: 0 15px 40px rgba(37, 111, 232, 0.18);
    --navbar-shadow: 0 1px 9px rgba(37, 111, 232, 0.08);
    --btn-shadow: 0 3px 13px rgba(37, 111, 232, 0.2);
    --btn-shadow-hover: 0 6px 20px rgba(255, 164, 54, 0.25);

    /* Bordes y radios */
    --radius-card: 15px;
    --radius-element: 10px;
    --radius-pill: 50px;

    /* Espaciado */
    --space-xs: 0.25rem;
    --space-sm: 0.5rem;
    --space-md: 1rem;
    --space-lg: 1.5rem;
    --space-xl: 2rem;

    /* Transiciones */
    --transition-fast: 0.15s ease;
    --transition-normal: 0.25s cubic-bezier(.65, -0.06, .33, 1.11);
    --transition-slow: 0.4s ease;

    /* Breakpoints para JS si es necesario */
    --breakpoint-sm: 576px;
    --breakpoint-md: 768px;
    --breakpoint-lg: 992px;
    --breakpoint-xl: 1200px;
    --breakpoint-xxl: 1400px;
}

/* RESET MEJORADO */
*,
*::before,
*::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

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

body {
    font-family: 'Montserrat', Arial, sans-serif;
    background: var(--color-bg);
    color: var(--color-darktext);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    overflow-x: hidden;
}

/* TIPOGRAFÍA MEJORADA */
h1,
h2,
h3,
h4,
h5,
h6 {
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: var(--space-md);
    color: var(--color-primary);
}

h2 {
    font-size: clamp(1.4rem, 4vw, 2rem);
}

/* LAYOUT PRINCIPAL */
.container {
    width: 100%;
    max-width: 100%;
    margin: 0 auto;
    padding: 0 var(--space-md);
    animation: fadeIn 0.6s ease;
}

.container-fluid {
    width: 100%;
    padding: 0 var(--space-md);
}

/* ANIMACIONES OPTIMIZADAS */
@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(15px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

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

    to {
        opacity: 1;
        transform: translateX(0);
    }
}

@keyframes waPop {
    0% {
        transform: scale(0.3);
        opacity: 0;
    }

    100% {
        transform: scale(1);
        opacity: 1;
    }
}

/* NAVBAR MEJORADA */
.navbar {
    background: var(--color-header);
    box-shadow: var(--navbar-shadow);
    padding: var(--space-sm) 0;
    position: sticky;
    top: 0;
    z-index: 1000;
    backdrop-filter: blur(10px);
}

.navbar-brand {
    font-weight: 800;
    font-size: clamp(1rem, 3vw, 1.5rem);
    letter-spacing: 0.35px;
    color: var(--color-primary) !important;
    transition: color var(--transition-fast);
    display: flex;
    align-items: center;
    gap: var(--space-sm);
}

.navbar-nav .nav-link {
    font-weight: 500;
    margin-right: var(--space-md);
    transition: all var(--transition-normal);
    color: var(--color-darktext) !important;
    font-size: 0.95rem;
    position: relative;
    padding: var(--space-sm) var(--space-md);
}

.navbar-nav .nav-link:hover,
.navbar-nav .nav-link.active {
    color: var(--color-primary) !important;
}

.navbar-nav .nav-link::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    height: 2px;
    width: 0;
    background: var(--color-accent);
    transition: width var(--transition-normal);
}

.navbar-nav .nav-link:hover::after,
.navbar-nav .nav-link.active::after {
    width: 60%;
}

/* LOGO */
.logo {
    width: clamp(90px, 20vw, 190px);
    height: auto;
    display: block;
    transition: transform var(--transition-normal);
}

.logo:hover {
    transform: scale(1.05);
}

/* ICONOS SOCIALES */
.social-icons {
    display: flex;
    gap: var(--space-sm);
}

.social-icons a {
    color: var(--color-primary);
    font-size: 1.33rem;
    transition: all var(--transition-normal);
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    border-radius: 50%;
}

.social-icons a:hover {
    color: var(--color-accent);
    transform: scale(1.13) rotate(-6deg);
    background: rgba(255, 164, 54, 0.1);
}

/* COMPONENTES DE FORMULARIO MEJORADOS */
.bg-light {
    background: var(--color-lightgray) !important;
}

.form-label {
    font-weight: 700;
    color: var(--color-primary);
    font-size: 0.98em;
    margin-bottom: var(--space-xs);
}

.form-control,
.form-select {
    border-radius: var(--radius-element);
    font-size: 1.02em;
    border: 2px solid var(--color-border);
    transition: all var(--transition-normal);
    padding: 0.75rem 1rem;
    width: 100%;
}

.form-control:focus,
.form-select:focus {
    border-color: var(--color-secondary);
    box-shadow: 0 2px 13px rgba(47, 162, 220, 0.1);
    outline: none;
}

/* BOTONES MEJORADOS */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-sm);
    font-weight: 600;
    text-decoration: none;
    border: none;
    cursor: pointer;
    transition: all var(--transition-normal);
    position: relative;
    overflow: hidden;
}

.btn:focus {
    outline: 2px solid var(--color-primary);
    outline-offset: 2px;
}

.btn-primary {
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-secondary) 100%);
    color: white;
    border-radius: var(--radius-pill);
    padding: 0.75rem 1.5rem;
    font-size: 1rem;
    box-shadow: var(--btn-shadow);
}

.btn-primary:hover {
    background: linear-gradient(135deg, var(--color-accent) 0%, var(--color-accent-dark) 100%);
    transform: translateY(-2px);
    box-shadow: var(--btn-shadow-hover);
}

/* SISTEMA DE GRID MEJORADO */
.row {
    display: flex;
    flex-wrap: wrap;
    margin: 0 calc(var(--space-sm) * -1);
}

.row.g-4 {
    margin: 0 calc(var(--space-sm) * -1);
}

[class*="col-"] {
    padding: 0 var(--space-sm);
    margin-bottom: var(--space-md);
}

.col-md-6 {
    flex: 0 0 50%;
    max-width: 50%;
}

.col-lg-4 {
    flex: 0 0 33.333333%;
    max-width: 33.333333%;
}

.col-xl-3 {
    flex: 0 0 25%;
    max-width: 25%;
}

.col-sm-12 {
    flex: 0 0 100%;
    max-width: 100%;
}

/* TARJETAS DE INVENTARIO OPTIMIZADAS */
#carList {
    animation: fadeIn 0.8s ease;
}

.car-card {
    border: none;
    border-radius: var(--radius-card);
    box-shadow: var(--card-shadow);
    transition: all var(--transition-normal);
    overflow: hidden;
    background: white;
    height: 100%;
    position: relative;
    display: flex;
    flex-direction: column;
}

.car-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--card-shadow-hover);
}

/* CONTENEDOR DE IMÁGENES CON PERFORMANCE */
.car-image-container {
    position: relative;
    height: clamp(140px, 25vw, 240px);
    overflow: hidden;
    background: linear-gradient(135deg, var(--color-lightgray) 0%, #e8f0fe 100%);
    flex-shrink: 0;
}

.car-image-slider {
    position: relative;
    width: 100%;
    height: 100%;
    overflow: hidden;
}

.car-image-wrapper {
    display: flex;
    transition: transform 0.5s ease-in-out;
    height: 100%;
    will-change: transform;
}

.car-image-slide {
    min-width: 100%;
    height: 100%;
    position: relative;
    animation: slideIn 0.3s ease;
}

.car-image {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: var(--transition-normal);
}

/* NAVEGACIÓN DE IMÁGENES */
.car-image-nav {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    background: rgba(255, 255, 255, 0.9);
    border: none;
    width: clamp(28px, 6vw, 40px);
    height: clamp(28px, 6vw, 40px);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: all var(--transition-normal);
    z-index: 10;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.2);
    color: var(--color-primary);
    font-size: clamp(0.8rem, 2vw, 1.2rem);
    font-weight: bold;
}

.car-image-nav:hover {
    background: var(--color-primary);
    color: white;
    transform: translateY(-50%) scale(1.1);
}

.car-image-prev {
    left: 10px;
}

.car-image-next {
    right: 10px;
}

/* INDICADORES DE IMÁGENES */
.car-image-indicators {
    position: absolute;
    bottom: 15px;
    left: 0;
    right: 0;
    display: flex;
    justify-content: center;
    gap: 8px;
    z-index: 10;
}

.car-image-indicator {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.6);
    border: 2px solid rgba(255, 255, 255, 0.8);
    cursor: pointer;
    transition: all var(--transition-normal);
}

.car-image-indicator.active {
    background: var(--color-primary);
    transform: scale(1.2);
}

.car-image-indicator:hover {
    background: var(--color-accent);
}

/* CONTADOR DE IMÁGENES */
.car-image-counter {
    position: absolute;
    top: 12px;
    left: 12px;
    background: rgba(0, 0, 0, 0.7);
    color: white;
    padding: 4px 10px;
    border-radius: 12px;
    font-size: 0.75rem;
    font-weight: 600;
    z-index: 10;
    backdrop-filter: blur(10px);
}

/* BADGES MEJORADOS CON SISTEMA DE CLASES */
.badge {
    font-weight: 600;
    padding: 6px 14px;
    border-radius: 20px;
    font-size: 0.75rem;
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.2);
    color: white;
    z-index: 10;
    position: absolute;
}

.car-badge {
    top: 12px;
    right: 12px;
}

.badge-clean {
    background: linear-gradient(135deg, var(--color-success) 0%, var(--color-success-light) 100%);
}

.badge-salvage {
    background: linear-gradient(135deg, var(--color-warning) 0%, var(--color-warning-light) 100%);
    color: #000;
}

.fuel-badge {
    top: 50px;
    right: 12px;
    padding: 4px 10px;
    border-radius: 12px;
    font-size: 0.7rem;
}

.fuel-gasoline {
    background: linear-gradient(135deg, #fd7e14 0%, #ff9f43 100%);
}

.fuel-diesel {
    background: linear-gradient(135deg, #6c757d 0%, #a0a0a0 100%);
}

.fuel-electric {
    background: linear-gradient(135deg, var(--color-success) 0%, var(--color-success-light) 100%);
}

.fuel-hybrid {
    background: linear-gradient(135deg, var(--color-info) 0%, var(--color-info-light) 100%);
}

/* CUERPO DE TARJETA MEJORADO */
.car-card-body {
    padding: var(--space-lg);
    display: flex;
    flex-direction: column;
    flex-grow: 1;
    gap: var(--space-md);
}

.car-title {
    font-weight: 700;
    color: var(--color-darktext);
    font-size: clamp(1rem, 2.5vw, 1.3rem);
    line-height: 1.3;
    margin: 0;
}

.car-specs {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
    gap: var(--space-sm);
    padding: var(--space-md);
    background: var(--color-lightgray);
    border-radius: var(--radius-element);
    margin: 0;
}

.spec-item {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    font-size: 0.85rem;
    color: var(--color-darktext);
}

.spec-item i {
    color: var(--color-primary);
    width: 16px;
    text-align: center;
    flex-shrink: 0;
}

.car-price {
    font-size: clamp(1.2rem, 3vw, 1.6rem);
    font-weight: 800;
    text-align: center;
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-secondary) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin: 0;
}

.car-actions {
    display: flex;
    gap: var(--space-sm);
    margin-top: auto;
    padding-top: var(--space-md);
    border-top: 1px solid var(--color-border);
}

.btn-contact {
    border-radius: 20px;
    padding: 10px 20px;
    font-weight: 600;
    font-size: 0.9rem;
    transition: all var(--transition-normal);
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 6px;
    flex: 1;
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-secondary) 100%);
    border: none;
    color: white;
    box-shadow: var(--btn-shadow);
    text-decoration: none;
}

.btn-contact:hover {
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(37, 111, 232, 0.3);
    background: var(--color-accent);
    color: white;
    text-decoration: none;
}

/* ESTADO VACÍO */
.empty-state {
    text-align: center;
    padding: var(--space-xl) var(--space-md);
    color: var(--color-darktext);
}

.empty-state i {
    font-size: 4rem;
    color: var(--color-border);
    margin-bottom: var(--space-lg);
}

.empty-state h4 {
    font-weight: 600;
    margin-bottom: var(--space-md);
}

.empty-state p {
    color: var(--color-muted);
    margin-bottom: var(--space-xl);
}

/* SECCIONES */
section {
    animation: fadeIn 0.95s;
    padding: var(--space-xl) 0;
}

section .mb-4.text-center {
    margin-bottom: var(--space-lg) !important;
}

/* FOOTER MEJORADO */
.footer {
    background: var(--color-footer);
    color: var(--color-darktext);
    padding: var(--space-xl) 0 var(--space-md) 0;
    text-align: center;
    border-top: 4px solid var(--color-primary);
    margin-top: var(--space-xl);
    box-shadow: 0 -2px 12px rgba(37, 111, 232, 0.09);
}

.footer .social-icons a {
    color: var(--color-primary);
    transition: all var(--transition-normal);
    margin: 0 8px;
    font-size: 1.32rem;
}

.footer .social-icons a:hover {
    color: var(--color-accent);
    transform: scale(1.13) rotate(-10deg);
}

/* WHATSAPP FLOAT OPTIMIZADO */
.whatsapp-float {
    position: fixed;
    bottom: 22px;
    right: 22px;
    z-index: 9999;
    width: clamp(50px, 10vw, 68px);
    height: clamp(50px, 10vw, 68px);
    background: linear-gradient(135deg, #25d366 0%, #1ebe5d 100%);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 8px 28px rgba(0, 0, 0, 0.22);
    cursor: pointer;
    transition: all var(--transition-normal);
    animation: waPop 0.8s ease;
    text-decoration: none;
}

.whatsapp-float:hover {
    transform: scale(1.12) rotate(-4deg);
    box-shadow: 0 14px 36px rgba(37, 111, 232, 0.25);
}

.whatsapp-float img {
    width: 65%;
    height: 65%;
    filter: brightness(0) invert(1);
    pointer-events: none;
}

/* SCROLLBAR PERSONALIZADO */
::-webkit-scrollbar {
    width: 8px;
}

::-webkit-scrollbar-track {
    background: var(--color-lightgray);
}

::-webkit-scrollbar-thumb {
    background: var(--color-primary);
    border-radius: 10px;
}

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

/* MEJORAS DE ACCESIBILIDAD */
@media (prefers-reduced-motion: reduce) {

    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
        scroll-behavior: auto !important;
    }
}

/* MODO OSCURO DEL SISTEMA */
@media (prefers-color-scheme: dark) {
    :root {
        --color-bg: #1a1d23;
        --color-lightgray: #2d3748;
        --color-header: #2d3748;
        --color-footer: #2d3748;
        --color-darktext: #e2e8f0;
        --color-border: #4a5568;
    }

    .car-card {
        background: #2d3748;
        color: #e2e8f0;
    }

    .car-title {
        color: #e2e8f0;
    }

    .spec-item {
        color: #cbd5e0;
    }

    .car-specs {
        background: #4a5568;
    }

    .form-control,
    .form-select {
        background: #4a5568;
        border-color: #6c757d;
        color: #e2e8f0;
    }

    .form-control:focus,
    .form-select:focus {
        background: #4a5568;
        color: #e2e8f0;
    }
}

/* IMÁGENES RESPONSIVAS */
img {
    max-width: 100%;
    height: auto;
    display: block;
}

/* ESTADOS DE CARGA */
.loading {
    opacity: 0.7;
    pointer-events: none;
    position: relative;
}

.loading::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 30px;
    height: 30px;
    border: 3px solid var(--color-lightgray);
    border-top: 3px solid var(--color-primary);
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

@keyframes spin {
    0% {
        transform: translate(-50%, -50%) rotate(0deg);
    }

    100% {
        transform: translate(-50%, -50%) rotate(360deg);
    }
}

.spinner-border-sm {
    width: 1rem;
    height: 1rem;
    border-width: 2px;
}

/* MEDIA QUERIES OPTIMIZADAS */

/* Pantallas extra grandes (≥1400px) */
@media (min-width: 1400px) {
    .container {
        max-width: 1320px;
    }

    .car-image-container {
        height: 240px;
    }
}

/* Laptops (≥1200px) */
@media (min-width: 1200px) {
    .col-xl-3 {
        flex: 0 0 25%;
        max-width: 25%;
    }
}

/* Tablets grandes (≥992px) */
@media (min-width: 992px) {
    .col-lg-4 {
        flex: 0 0 33.333333%;
        max-width: 33.333333%;
    }
}

/* Tablets (≥768px) */
@media (min-width: 768px) {
    .col-md-6 {
        flex: 0 0 50%;
        max-width: 50%;
    }

    .container {
        padding: 0 var(--space-lg);
    }
}

/* Tablets pequeñas (≤767.98px) */
@media (max-width: 767.98px) {
    .navbar-nav .nav-link {
        margin-right: 0;
        margin-bottom: 6px;
        font-size: 0.9rem;
        padding: var(--space-sm) var(--space-md);
    }

    .car-specs {
        grid-template-columns: 1fr 1fr;
    }

    section {
        padding: var(--space-lg) 0;
    }

    .footer {
        padding: var(--space-lg) 0 var(--space-md) 0;
        margin-top: var(--space-lg);
    }
}

/* Móviles grandes (≤575.98px) */
@media (max-width: 575.98px) {
    .car-specs {
        grid-template-columns: 1fr;
    }

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

    .btn-contact {
        width: 100%;
    }

    .container {
        padding: 0 var(--space-md);
    }
}

/* Móviles pequeños (≤410px) */
@media (max-width: 410px) {
    .car-image-container {
        height: 120px;
    }

    .car-card-body {
        padding: var(--space-md);
    }

    .whatsapp-float {
        bottom: 15px;
        right: 15px;
    }
}

/* Utilidades adicionales */
.visually-hidden {
    position: absolute !important;
    width: 1px !important;
    height: 1px !important;
    padding: 0 !important;
    margin: -1px !important;
    overflow: hidden !important;
    clip: rect(0, 0, 0, 0) !important;
    white-space: nowrap !important;
    border: 0 !important;
}

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

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

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

.mb-4 {
    margin-bottom: var(--space-lg) !important;
}

.mt-4 {
    margin-top: var(--space-lg) !important;
}

.py-4 {
    padding: var(--space-lg) 0 !important;
}

/* Mejora de rendimiento para elementos que se animan */
.car-card,
.btn,
.navbar-nav .nav-link,
.social-icons a,
.whatsapp-float {
    will-change: transform;
}

/* Optimización para impresión */
@media print {

    .navbar,
    .footer,
    .whatsapp-float,
    .btn-contact {
        display: none !important;
    }

    .car-card {
        break-inside: avoid;
        box-shadow: none !important;
        border: 1px solid #ddd !important;
    }
}