/* 
STYLES.CSS - Solo Chevrolet Country
Landing page profesional moderna para repuestos Chevrolet
Diseño premium, mobile-first, alta conversión
*/

/* VARIABLES CSS */
:root {
    /* Colores principales */
    --primary-gold: #D4AF37;
    --primary-blue: #003366;
    --accent-blue: #0066CC;
    --dark-blue: #001A33;
    
    /* Grises */
    --white: #FFFFFF;
    --gray-50: #F8FAFC;
    --gray-100: #F1F5F9;
    --gray-200: #E2E8F0;
    --gray-300: #CBD5E1;
    --gray-400: #94A3B8;
    --gray-500: #64748B;
    --gray-600: #475569;
    --gray-700: #334155;
    --gray-800: #1E293B;
    --gray-900: #0F172A;
    
    /* Estados */
    --success: #10B981;
    --error: #EF4444;
    --warning: #F59E0B;
    
    /* Tipografía */
    --font-primary: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    
    /* Espaciado */
    --spacing-xs: 0.5rem;
    --spacing-sm: 0.75rem;
    --spacing-md: 1rem;
    --spacing-lg: 1.5rem;
    --spacing-xl: 2rem;
    --spacing-2xl: 3rem;
    --spacing-3xl: 4rem;
    --spacing-4xl: 6rem;
    
    /* Sombras */
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1);
    
    /* Transiciones */
    --transition-fast: 0.15s ease;
    --transition-normal: 0.3s ease;
    --transition-slow: 0.5s ease;
    
    /* Border radius */
    --radius-sm: 0.375rem;
    --radius-md: 0.5rem;
    --radius-lg: 0.75rem;
    --radius-xl: 1rem;
}

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

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

body {
    font-family: var(--font-primary);
    line-height: 1.6;
    color: var(--gray-800);
    background-color: var(--white);
    overflow-x: hidden;
}

img {
    max-width: 100%;
    height: auto;
}

a {
    text-decoration: none;
    color: inherit;
}

button {
    cursor: pointer;
    border: none;
    background: none;
    font-family: inherit;
}

/* CONTENEDOR */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-lg);
}

/* HEADER */
.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--gray-200);
    z-index: 1000;
    transition: var(--transition-normal);
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-lg);
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 70px;
}

.nav-brand .logo {
    height: 45px;
    width: auto;
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: var(--spacing-xl);
}

.nav-link {
    font-weight: 500;
    color: var(--gray-700);
    transition: var(--transition-fast);
    padding: var(--spacing-sm) 0;
    position: relative;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--primary-gold);
    transition: var(--transition-normal);
}

.nav-link:hover {
    color: var(--primary-gold);
}

.nav-link:hover::after {
    width: 100%;
}

.nav-toggle {
    display: none;
    flex-direction: column;
    gap: 4px;
}

.nav-toggle span {
    width: 25px;
    height: 3px;
    background: var(--gray-700);
    border-radius: 2px;
    transition: var(--transition-fast);
}

/* BOTONES */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-sm) var(--spacing-lg);
    font-weight: 600;
    border-radius: var(--radius-md);
    transition: var(--transition-normal);
    text-decoration: none;
    border: 2px solid transparent;
    cursor: pointer;
    white-space: nowrap;
}

.btn-primary {
    background: var(--primary-gold);
    color: var(--primary-blue);
    box-shadow: var(--shadow-md);
}

.btn-primary:hover {
    background: #B8941F;
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

.btn-outline {
    background: #ffffff;
    color: #000000;
    border-color: var(--primary-blue);
}



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

.btn-lg {
    padding: var(--spacing-md) var(--spacing-xl);
    font-size: 1.1rem;
}

.btn-sm {
    padding: var(--spacing-xs) var(--spacing-md);
    font-size: 0.9rem;
}

.btn-submit {
    width: 100%;
    padding: var(--spacing-lg);
    font-size: 1.1rem;
    position: relative;
}

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

.btn-loader {
    display: none;
    width: 20px;
    height: 20px;
    border: 2px solid transparent;
    border-top: 2px solid currentColor;
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

.btn-submit.loading .btn-text { display: none; }
.btn-submit.loading .btn-loader { display: block; }

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

/* HERO SECTION */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    position: relative;
    background: linear-gradient(135deg, var(--primary-blue) 0%, var(--dark-blue) 100%);
    color: var(--white);
    overflow: hidden;
}

.hero-background {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-image: url('https://images.unsplash.com/photo-1619642751034-765dfdf7c58e?q=80&w=1920');
    background-size: cover;
    background-position: center;
    background-attachment: fixed;
}

.hero-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, 
        rgba(0, 51, 102, 0.9) 0%, 
        rgba(0, 26, 51, 0.8) 100%);
}

.hero-container {
    position: relative;
    z-index: 2;
    max-width: 1200px;
    margin: 0 auto;
    padding: var(--spacing-4xl) var(--spacing-lg);
}

.hero-content {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--spacing-4xl);
    align-items: center;
}

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

.hero-title {
    font-size: clamp(2.5rem, 5vw, 4rem);
    font-weight: 800;
    line-height: 1.1;
    margin-bottom: var(--spacing-lg);
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.3);
}

.highlight {
    color: var(--primary-gold);
    position: relative;
}

.highlight::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    right: 0;
    height: 4px;
    background: var(--primary-gold);
    border-radius: 2px;
}

.hero-subtitle {
    font-size: 1.25rem;
    margin-bottom: var(--spacing-xl);
    opacity: 0.9;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

.hero-features {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-2xl);
}

.feature {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    background: rgba(255, 255, 255, 0.1);
    padding: var(--spacing-sm) var(--spacing-md);
    border-radius: var(--radius-lg);
    backdrop-filter: blur(10px);
}

.feature-icon {
    width: 24px;
    height: 24px;
    background: var(--primary-gold);
    color: var(--primary-blue);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: bold;
    font-size: 0.8rem;
}

.hero-cta {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: var(--spacing-md);
}

/* FORMULARIO - VERSIÓN CORREGIDA */
.form-card {
    background: var(--white);
    border-radius: var(--radius-xl);
    padding: var(--spacing-xl);
    box-shadow: var(--shadow-xl);
    max-width: 480px;
    width: 100%;
    margin: 0 auto;
}

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

.form-title {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--primary-blue);
    margin-bottom: var(--spacing-xs);
}

.form-subtitle {
    color: var(--gray-600);
    font-size: 0.9rem;
}

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

.form-group {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xs);
    width: 100%;
}

.form-row {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
    width: 100%;
}

.form-label {
    font-weight: 600;
    color: var(--gray-700);
    font-size: 0.85rem;
}

.form-input {
    width: 100%;
    padding: var(--spacing-sm) var(--spacing-md);
    border: 2px solid var(--gray-200);
    border-radius: var(--radius-sm);
    font-size: 0.9rem;
    transition: var(--transition-normal);
    background: var(--white);
    box-sizing: border-box;
}

.form-input:focus {
    outline: none;
    border-color: var(--primary-gold);
    box-shadow: 0 0 0 3px rgba(212, 175, 55, 0.1);
}

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

.form-textarea {
    resize: vertical;
    min-height: 80px;
    font-family: inherit;
}

.phone-input {
    display: flex;
    width: 100%;
    border: 2px solid var(--gray-200);
    border-radius: var(--radius-sm);
    overflow: hidden;
    transition: var(--transition-normal);
    box-sizing: border-box;
}

.phone-input:focus-within {
    border-color: var(--primary-gold);
    box-shadow: 0 0 0 3px rgba(212, 175, 55, 0.1);
}

.phone-prefix {
    background: var(--gray-50);
    padding: var(--spacing-sm) var(--spacing-sm);
    border-right: 2px solid var(--gray-200);
    font-size: 0.8rem;
    color: var(--gray-600);
    white-space: nowrap;
    display: flex;
    align-items: center;
    flex-shrink: 0;
}

.phone-input .form-input {
    border: none;
    flex: 1;
    border-radius: 0;
    min-width: 0;
}

.phone-input .form-input:focus {
    box-shadow: none;
}

.form-error {
    color: var(--error);
    font-size: 0.75rem;
    display: none;
    margin-top: 2px;
}

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

.form-success {
    background: linear-gradient(135deg, var(--success), #059669);
    color: var(--white);
    padding: var(--spacing-md);
    border-radius: var(--radius-sm);
    text-align: center;
    display: none;
}

.form-success.show {
    display: block;
}

.success-icon {
    width: 30px;
    height: 30px;
    background: rgba(255, 255, 255, 0.2);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto var(--spacing-xs);
    font-weight: bold;
    font-size: 1rem;
}

.form-error-general {
    background: var(--error);
    color: var(--white);
    padding: var(--spacing-sm);
    border-radius: var(--radius-sm);
    text-align: center;
    display: none;
    font-size: 0.9rem;
}

.form-error-general.show {
    display: block;
}

/* RESPONSIVE PARA FORMULARIO */
@media (min-width: 480px) {
    .form-row {
        flex-direction: row;
        gap: var(--spacing-sm);
    }
    
    .form-row .form-group {
        flex: 1;
    }
}

@media (max-width: 479px) {
    .form-card {
        padding: var(--spacing-md);
        margin: 0 var(--spacing-sm);
    }
    
    .form-title {
        font-size: 1.3rem;
    }
    
    .phone-prefix {
        font-size: 0.75rem;
        padding: var(--spacing-xs);
    }
}

/* SECCIONES */
.products, .partners {
    padding: var(--spacing-4xl) 0;
}

.products {
    background: var(--gray-50);
}

.section-header {
    text-align: center;
    margin-bottom: var(--spacing-3xl);
}

.section-title {
    font-size: clamp(2rem, 4vw, 3rem);
    font-weight: 700;
    color: var(--primary-blue);
    margin-bottom: var(--spacing-md);
}

.section-subtitle {
    font-size: 1.1rem;
    color: var(--gray-600);
    max-width: 600px;
    margin: 0 auto;
}

/* PRODUCTOS */
.products-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--spacing-xl);
}

.product-card {
    background: var(--white);
    border-radius: var(--radius-xl);
    overflow: hidden;
    box-shadow: var(--shadow-lg);
    transition: var(--transition-normal);
    position: relative;
}

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

.product-image {
    position: relative;
    overflow: hidden;
    height: 250px;
}

.product-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: var(--transition-slow);
}

.product-card:hover .product-image img {
    transform: scale(1.05);
}

.product-badge {
    position: absolute;
    top: var(--spacing-md);
    right: var(--spacing-md);
    background: var(--primary-gold);
    color: var(--primary-blue);
    padding: var(--spacing-xs) var(--spacing-sm);
    border-radius: var(--radius-md);
    font-size: 0.8rem;
    font-weight: 600;
}

.product-content {
    padding: var(--spacing-xl);
}

.product-name {
    font-size: 1.3rem;
    font-weight: 700;
    color: var(--primary-blue);
    margin-bottom: var(--spacing-md);
}

.product-description {
    color: var(--gray-600);
    margin-bottom: var(--spacing-lg);
    line-height: 1.6;
}

.product-specs {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-lg);
}

.spec {
    display: flex;
    justify-content: space-between;
    padding: var(--spacing-xs) 0;
    border-bottom: 1px solid var(--gray-200);
}

.spec:last-child {
    border-bottom: none;
}

.spec-label {
    font-weight: 500;
    color: var(--gray-600);
}

.spec-value {
    font-weight: 600;
    color: var(--gray-800);
}

.product-btn {
    width: 100%;
}

/* ALIADOS */
.partners-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--spacing-xl);
    align-items: center;
}

.partner-item {
    background: var(--white);
    padding: var(--spacing-xl);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
    transition: var(--transition-normal);
    display: flex;
    align-items: center;
    justify-content: center;
    height: 120px;
}

.partner-item:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
}

.partner-item img {
    max-height: 60px;
    width: auto;
    object-fit: contain;
    filter: grayscale(1) opacity(0.7);
    transition: var(--transition-normal);
}

.partner-item:hover img {
    filter: grayscale(0) opacity(1);
}

/* FOOTER */
.footer {
    background: var(--gray-900);
    color: var(--gray-300);
    padding: var(--spacing-4xl) 0 var(--spacing-xl);
}

.footer-content {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--spacing-2xl);
    margin-bottom: var(--spacing-2xl);
}

.footer-logo-img {
    height: 50px;
    margin-bottom: var(--spacing-md);
}

.footer-description {
    color: var(--gray-400);
    line-height: 1.6;
    max-width: 400px;
}

.footer-title {
    color: var(--primary-gold);
    font-size: 1.2rem;
    font-weight: 600;
    margin-bottom: var(--spacing-lg);
}

.contact-info {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-lg);
}

.contact-item {
    display: flex;
    gap: var(--spacing-md);
    align-items: flex-start;
}

.contact-icon {
    font-size: 1.2rem;
    margin-top: 2px;
}

.contact-details p {
    margin-bottom: var(--spacing-xs);
}

.contact-details strong {
    color: var(--white);
}

.contact-note {
    font-size: 0.9rem;
    color: var(--gray-500);
}

.footer a {
    color: var(--primary-gold);
    transition: var(--transition-fast);
}

.footer a:hover {
    color: #B8941F;
}

.footer-bottom {
    border-top: 1px solid var(--gray-700);
    padding-top: var(--spacing-lg);
    text-align: center;
    color: var(--gray-500);
}

.footer-keywords {
    font-size: 0.9rem;
    margin-top: var(--spacing-sm);
}

/* WHATSAPP FLOTANTE */
.whatsapp-float {
    position: fixed;
    bottom: var(--spacing-xl);
    right: var(--spacing-xl);
    width: 60px;
    height: 60px;
    background: linear-gradient(135deg, #25D366, #22C55E);
    color: var(--white);
    border-radius: 50%;
    box-shadow: var(--shadow-xl);
    z-index: 1000;
    transition: var(--transition-normal);
    display: flex;
    align-items: center;
    justify-content: center;
}

.whatsapp-float:hover {
    transform: scale(1.1);
    box-shadow: 0 25px 35px -5px rgba(37, 211, 102, 0.4);
}

.whatsapp-float svg {
    width: 28px;
    height: 28px;
}

/* MODAL */
.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.6);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 2000;
    opacity: 0;
    visibility: hidden;
    transition: var(--transition-normal);
    padding: var(--spacing-lg);
    backdrop-filter: blur(4px);
}

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

.modal-content {
    background: var(--white);
    border-radius: var(--radius-xl);
    padding: var(--spacing-2xl);
    width: 100%;
    max-width: 400px;
    position: relative;
    transform: scale(0.9);
    transition: var(--transition-normal);
    box-shadow: var(--shadow-xl);
}

.modal-overlay.active .modal-content {
    transform: scale(1);
}

.modal-close {
    position: absolute;
    top: var(--spacing-md);
    right: var(--spacing-md);
    width: 32px;
    height: 32px;
    border-radius: 50%;
    background: var(--gray-100);
    color: var(--gray-600);
    font-size: 1.5rem;
    transition: var(--transition-fast);
    display: flex;
    align-items: center;
    justify-content: center;
}

.modal-close:hover {
    background: var(--gray-200);
    color: var(--gray-800);
}

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

.modal-header h3 {
    color: var(--primary-blue);
    margin-bottom: var(--spacing-sm);
}

.modal-header p {
    color: var(--gray-600);
    font-size: 0.9rem;
}

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

/* RESPONSIVE */
@media (min-width: 768px) {
    .hero-content {
        grid-template-columns: 1fr 500px;
        gap: var(--spacing-3xl);
        text-align: left;
    }
    
    .hero-text {
        text-align: left;
    }
    
    .hero-features {
        justify-content: flex-start;
    }
    
    .hero-cta {
        justify-content: flex-start;
    }
    
    .form-row {
        grid-template-columns: 1fr 1fr;
    }
    
    .products-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .partners-grid {
        grid-template-columns: repeat(5, 1fr);
    }
    
    .footer-content {
        grid-template-columns: 1fr 1.5fr;
    }
}

@media (min-width: 1024px) {
    .products-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: var(--spacing-2xl);
    }
}

@media (max-width: 767px) {
    .nav-menu {
        display: none;
    }
    
    .nav-toggle {
        display: flex;
    }
    
    .hero-container {
        padding: var(--spacing-2xl) var(--spacing-md);
    }
    
    .form-card {
        padding: var(--spacing-lg);
        margin: 0px;
    }
    
    .whatsapp-float {
        bottom: var(--spacing-md);
        right: var(--spacing-md);
        width: 50px;
        height: 50px;
    }
    
    .whatsapp-float svg {
        width: 24px;
        height: 24px;
    }
    
    .container {
        padding: 0 var(--spacing-md);
    }
}

/* ANIMACIONES */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.product-card,
.partner-item {
    animation: fadeInUp 0.6s ease-out;
}

/* ESTADOS DE FOCUS */
*:focus {
    outline: 2px solid var(--primary-gold);
    outline-offset: 2px;
}

/* SCROLL SUAVE */
html {
    scroll-padding-top: 80px;
}

/* === FOOTER BOTTOM STYLING === */
.footer-bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    padding-top: 2rem;
    margin-top: 2rem;
}

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

.footer-copyright {
    flex: 1;
}

.footer-copyright p {
    margin: 0.25rem 0;
    color: rgba(255, 255, 255, 0.8);
    font-size: 0.9rem;
}

.footer-credits {
    flex-shrink: 0;
}

.footer-credits p {
    margin: 0;
    color: rgba(255, 255, 255, 0.9);
    font-size: 0.9rem;
    font-weight: 500;
}

.footer-credits strong {
    color: #ffd700;
    font-weight: 700;
    letter-spacing: 0.5px;
}

/* === RESPONSIVE === */
@media (max-width: 768px) {
    .footer-bottom-content {
        flex-direction: column;
        text-align: center;
        gap: 1.5rem;
    }
    
    .footer-copyright {
        order: 2;
    }
    
    .footer-credits {
        order: 1;
    }
    
    .footer-credits p {
        font-size: 1rem;
        font-weight: 600;
    }
}

/* === HOVER EFFECT === */
.footer-credits p:hover strong {
    color: #ffed4e;
    transition: color 0.3s ease;
}