/* ========================================
   VARIABLES Y RESET
   ======================================== */
:root {
    --primary-red: #E31E24;
    --dark-red: #B71C1C;
    --black: #000000;
    --dark-gray: #1a1a1a;
    --medium-gray: #333333;
    --light-gray: #f5f5f5;
    --white: #ffffff;
    --transition: all 0.3s ease;
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    line-height: 1.6;
    color: var(--medium-gray);
    background-color: var(--white);
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

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

a {
    text-decoration: none;
    color: inherit;
    transition: var(--transition);
}

/* ========================================
   WHATSAPP FLOATING BUTTON
   ======================================== */
.whatsapp-float {
    position: fixed;
    bottom: 30px;
    right: 30px;
    background: #25D366;
    color: white;
    border-radius: 50px;
    padding: 15px 25px;
    display: flex;
    align-items: center;
    gap: 10px;
    box-shadow: 0 4px 12px rgba(37, 211, 102, 0.4);
    z-index: 1000;
    font-weight: 600;
    transition: var(--transition);
}

.whatsapp-float:hover {
    transform: translateY(-3px);
    box-shadow: 0 6px 20px rgba(37, 211, 102, 0.6);
}

.whatsapp-float i {
    font-size: 28px;
}

.whatsapp-text {
    font-size: 14px;
}

@media (max-width: 768px) {
    .whatsapp-float {
        padding: 15px;
        border-radius: 50%;
    }
    
    .whatsapp-text {
        display: none;
    }
}

/* ========================================
   HEADER
   ======================================== */
.header {
    background: var(--white);
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
    position: sticky;
    top: 0;
    z-index: 999;
}

.header-top {
    background: var(--dark-gray);
    color: var(--white);
    padding: 10px 0;
    font-size: 14px;
}

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

.header-contact span {
    margin-right: 25px;
}

.header-contact i {
    margin-right: 8px;
    color: var(--primary-red);
}

.header-social {
    display: flex;
    gap: 15px;
}

.header-social a {
    color: var(--white);
    font-size: 18px;
    transition: var(--transition);
}

.header-social a:hover {
    color: var(--primary-red);
    transform: translateY(-2px);
}

.navbar {
    background: var(--white);
    padding: 15px 0;
}

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

.logo img {
    height: 60px;
    width: auto;
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: 30px;
    align-items: center;
}

.nav-link {
    font-weight: 600;
    color: var(--medium-gray);
    padding: 8px 16px;
    border-radius: 4px;
    transition: var(--transition);
}

.nav-link:hover,
.nav-link.active {
    color: var(--white);
    background: var(--primary-red);
}

.lang-switcher {
    margin-left: 10px;
}

.lang-btn {
    background: var(--black);
    color: var(--white);
    border: none;
    padding: 8px 16px;
    border-radius: 4px;
    cursor: pointer;
    font-weight: 600;
    display: flex;
    align-items: center;
    gap: 8px;
    transition: var(--transition);
}

.lang-btn:hover {
    background: var(--primary-red);
}

.mobile-menu-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
}

.mobile-menu-toggle span {
    width: 25px;
    height: 3px;
    background: var(--black);
    transition: var(--transition);
}

/* ========================================
   HERO SECTION
   ======================================== */
.hero {
    position: relative;
    min-height: 600px;
    display: flex;
    flex-direction: column;
    justify-content: center;
    background: var(--dark-gray);
    color: var(--white);
    overflow: hidden;
}

.hero-background {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: url('https://images.pexels.com/photos/585419/pexels-photo-585419.jpeg?auto=compress&cs=tinysrgb&w=1920') center/cover no-repeat;
    filter: grayscale(100%);
}

.hero-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, rgba(0,0,0,0.8) 0%, rgba(227,30,36,0.4) 100%);
}

.hero-content {
    position: relative;
    z-index: 2;
    padding: 100px 0;
}

.hero-slogan {
    font-size: 3.5rem;
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: 30px;
    text-shadow: 2px 2px 4px rgba(0,0,0,0.5);
}

.slogan-line {
    display: none;
    animation: fadeIn 1s ease-in;
}

.slogan-line.active {
    display: block;
}

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

/* Features Section */
.features-section {
    position: relative;
    z-index: 2;
    padding: 60px 0;
    background: rgba(0,0,0,0.6);
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 40px;
}

.feature-card {
    text-align: center;
    padding: 30px 20px;
    background: rgba(255,255,255,0.1);
    border-radius: 8px;
    backdrop-filter: blur(10px);
    transition: var(--transition);
}

.feature-card:hover {
    transform: translateY(-10px);
    background: rgba(227,30,36,0.2);
}

.feature-icon {
    font-size: 3rem;
    color: var(--primary-red);
    margin-bottom: 20px;
}

.feature-card h3 {
    color: var(--white);
    font-size: 1.2rem;
    font-weight: 600;
}

/* ========================================
   MODEL SECTION
   ======================================== */
.model-section {
    padding: 80px 0;
    background: var(--white);
}

.model-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
}

.model-text h2 {
    font-size: 2.5rem;
    color: var(--black);
    margin-bottom: 30px;
    position: relative;
    padding-bottom: 15px;
}

.model-text h2::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 80px;
    height: 4px;
    background: var(--primary-red);
}

.model-text p {
    font-size: 1.1rem;
    line-height: 1.8;
    color: var(--medium-gray);
}

.model-image {
    border-radius: 8px;
    overflow: hidden;
    box-shadow: 0 10px 30px rgba(0,0,0,0.2);
}

.model-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    filter: grayscale(100%);
    transition: var(--transition);
}

.model-image:hover img {
    filter: grayscale(0%);
    transform: scale(1.05);
}

/* ========================================
   ABOUT SECTION
   ======================================== */
.about-section {
    padding: 80px 0;
    background: var(--light-gray);
}

.section-header {
    text-align: center;
    margin-bottom: 60px;
}

.section-header h2 {
    font-size: 2.8rem;
    color: var(--black);
    margin-bottom: 15px;
    position: relative;
    display: inline-block;
}

.section-header h2::after {
    content: '';
    position: absolute;
    bottom: -10px;
    left: 50%;
    transform: translateX(-50%);
    width: 80px;
    height: 4px;
    background: var(--primary-red);
}

.section-header p {
    font-size: 1.1rem;
    color: var(--medium-gray);
    margin-top: 25px;
}

.about-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 40px;
}

.about-card {
    background: var(--white);
    padding: 40px 30px;
    border-radius: 8px;
    box-shadow: 0 5px 20px rgba(0,0,0,0.1);
    position: relative;
    transition: var(--transition);
}

.about-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 10px 30px rgba(227,30,36,0.2);
}

.card-number {
    font-size: 3rem;
    font-weight: 700;
    color: var(--primary-red);
    opacity: 0.2;
    position: absolute;
    top: 20px;
    right: 30px;
}

.about-card h3 {
    font-size: 1.5rem;
    color: var(--black);
    margin-bottom: 20px;
    position: relative;
}

.about-card p {
    font-size: 1rem;
    line-height: 1.8;
    color: var(--medium-gray);
}

/* ========================================
   BRANDS SECTION
   ======================================== */
.brands-section {
    padding: 80px 0;
    background: var(--white);
}

.brands-slider {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 40px;
    margin-top: 50px;
}

.brand-card {
    background: var(--light-gray);
    padding: 60px 40px;
    border-radius: 8px;
    text-align: center;
    transition: var(--transition);
    border: 3px solid transparent;
}

.brand-card:hover {
    border-color: var(--primary-red);
    transform: translateY(-10px);
    box-shadow: 0 10px 30px rgba(0,0,0,0.15);
}

.brand-card img {
    height: 100px;
    width: auto;
    margin: 0 auto 30px;
    object-fit: contain;
    filter: grayscale(100%);
    transition: var(--transition);
}

.brand-card:hover img {
    filter: grayscale(0%);
}

.brand-card h3 {
    font-size: 1.3rem;
    color: var(--black);
    font-weight: 700;
}

/* ========================================
   CONTACT SECTION
   ======================================== */
.contact-section {
    padding: 80px 0;
    background: var(--light-gray);
}

.contact-wrapper {
    max-width: 800px;
    margin: 0 auto;
}

.contact-form-container {
    background: var(--white);
    padding: 50px;
    border-radius: 8px;
    box-shadow: 0 5px 20px rgba(0,0,0,0.1);
}

.contact-form {
    display: flex;
    flex-direction: column;
    gap: 25px;
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 25px;
}

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

.form-group label {
    font-weight: 600;
    color: var(--black);
    margin-bottom: 8px;
    font-size: 0.95rem;
}

.form-group input,
.form-group select,
.form-group textarea {
    padding: 12px 15px;
    border: 2px solid #ddd;
    border-radius: 4px;
    font-size: 1rem;
    transition: var(--transition);
    font-family: inherit;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary-red);
}

.radio-group {
    display: flex;
    gap: 30px;
    margin-top: 10px;
}

.radio-label {
    display: flex;
    align-items: center;
    gap: 8px;
    cursor: pointer;
    font-size: 1rem;
}

.radio-label input[type="radio"] {
    width: 18px;
    height: 18px;
    cursor: pointer;
}

.submit-btn {
    background: var(--primary-red);
    color: var(--white);
    border: none;
    padding: 15px 40px;
    font-size: 1.1rem;
    font-weight: 600;
    border-radius: 4px;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    transition: var(--transition);
    align-self: flex-start;
}

.submit-btn:hover {
    background: var(--dark-red);
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(227,30,36,0.3);
}

/* ========================================
   FOOTER
   ======================================== */
.footer {
    background: var(--black);
    color: var(--white);
    padding: 60px 0 30px;
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 40px;
    margin-bottom: 40px;
}

.footer-column h4 {
    color: var(--primary-red);
    font-size: 1.2rem;
    margin-bottom: 20px;
}

.footer-logo {
    max-width: 180px;
    margin-bottom: 20px;
}

.footer-column p {
    line-height: 1.8;
    color: #ccc;
}

.footer-links {
    list-style: none;
}

.footer-links li {
    margin-bottom: 12px;
}

.footer-links a {
    color: #ccc;
    transition: var(--transition);
}

.footer-links a:hover {
    color: var(--primary-red);
    padding-left: 5px;
}

.footer-contact {
    list-style: none;
}

.footer-contact li {
    margin-bottom: 15px;
    display: flex;
    align-items: flex-start;
    gap: 10px;
    color: #ccc;
}

.footer-contact i {
    color: var(--primary-red);
    margin-top: 4px;
}

.footer-social {
    display: flex;
    gap: 15px;
}

.footer-social a {
    width: 40px;
    height: 40px;
    background: var(--medium-gray);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 18px;
    transition: var(--transition);
}

.footer-social a:hover {
    background: var(--primary-red);
    transform: translateY(-3px);
}

.footer-bottom {
    text-align: center;
    padding-top: 30px;
    border-top: 1px solid var(--medium-gray);
    color: #888;
}

/* ========================================
   RESPONSIVE
   ======================================== */
@media (max-width: 1024px) {
    .hero-slogan {
        font-size: 2.8rem;
    }
    
    .model-content {
        gap: 40px;
    }
}

@media (max-width: 768px) {
    .header-top .container {
        flex-direction: column;
        gap: 10px;
        text-align: center;
    }
    
    .header-contact span {
        margin: 0 10px;
        font-size: 12px;
    }
    
    .mobile-menu-toggle {
        display: flex;
    }
    
    .nav-menu {
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        background: var(--white);
        flex-direction: column;
        padding: 20px;
        box-shadow: 0 5px 10px rgba(0,0,0,0.1);
        display: none;
    }
    
    .nav-menu.active {
        display: flex;
    }
    
    .hero-slogan {
        font-size: 2rem;
    }
    
    .model-content {
        grid-template-columns: 1fr;
        gap: 40px;
    }
    
    .form-row {
        grid-template-columns: 1fr;
    }
    
    .contact-form-container {
        padding: 30px 20px;
    }
    
    .footer-content {
        grid-template-columns: 1fr;
        text-align: center;
    }
    
    .footer-social {
        justify-content: center;
    }
}

@media (max-width: 480px) {
    .hero-slogan {
        font-size: 1.5rem;
    }
    
    .section-header h2 {
        font-size: 2rem;
    }
    
    .model-text h2 {
        font-size: 1.8rem;
    }
}