/* 
   Stock Ceramic - Modern Premium CSS 
   Inspired by Law Firm elegance combined with interior design.
*/

:root {
    /* Color Palette - Premium Dark Theme with Gold Accents */
    --clr-primary: #12151c; /* Deep Charcoal Blue */
    --clr-secondary: #1a1e28; /* Lighter Charcoal */
    --clr-accent: #c5a47e; /* Elegant Gold / Muted Copper */
    --clr-accent-hover: #b08d66;
    
    --clr-text-light: #f5f6f8;
    --clr-text-muted: #a0a6b5;
    --clr-text-dark: #222;
    
    --clr-bg-light: #ffffff;
    --clr-bg-offwhite: #f8f9fa;
    --clr-border: #2e3545;
    
    /* Typography */
    --font-heading: 'Playfair Display', serif;
    --font-body: 'Inter', sans-serif;
    
    /* Transitions */
    --transition-fast: 0.2s ease;
    --transition-normal: 0.3s ease-in-out;
    --transition-slow: 0.5s cubic-bezier(0.25, 0.46, 0.45, 0.94);
    
    /* Shadows */
    --shadow-sm: 0 4px 6px rgba(0,0,0,0.05);
    --shadow-md: 0 10px 20px rgba(0,0,0,0.08);
    --shadow-lg: 0 20px 40px rgba(0,0,0,0.15);
}

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

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

body {
    font-family: var(--font-body);
    color: var(--clr-text-dark);
    background-color: var(--clr-bg-offwhite);
    line-height: 1.6;
    overflow-x: hidden;
}

h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-heading);
    font-weight: 600;
    line-height: 1.2;
    color: var(--clr-primary);
}

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

ul {
    list-style: none;
}

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

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 2rem;
}

/* Utilities */
.text-center { text-align: center; }
.text-white { color: var(--clr-text-light); }
.bg-gold { background-color: var(--clr-accent) !important; }

/* Buttons */
.btn {
    display: inline-block;
    padding: 0.8rem 2rem;
    font-size: 1rem;
    font-weight: 500;
    letter-spacing: 0.5px;
    border-radius: 2px;
    cursor: pointer;
    transition: var(--transition-normal);
    text-transform: uppercase;
    font-size: 0.85rem;
    border: 1px solid transparent;
}

.btn-primary {
    background-color: var(--clr-primary);
    color: var(--clr-text-light);
}

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

.btn-outline {
    background-color: transparent;
    border-color: var(--clr-text-light);
    color: var(--clr-text-light);
}

.btn-outline:hover {
    background-color: var(--clr-text-light);
    color: var(--clr-primary);
}

.btn-gold {
    background-color: var(--clr-accent);
    color: #fff;
}

.btn-gold:hover {
    background-color: var(--clr-accent-hover);
}

.btn-sm {
    padding: 0.5rem 1rem;
    font-size: 0.75rem;
    background-color: var(--clr-text-light);
    color: var(--clr-primary);
}
.btn-sm:hover {
    background-color: var(--clr-accent);
    color: #fff;
}

/* Header & Nav */
.header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1000;
    padding: 1.5rem 0;
    transition: var(--transition-normal);
    background-color: transparent;
}

.header.scrolled {
    background-color: var(--clr-primary);
    padding: 1rem 0;
    box-shadow: var(--shadow-sm);
}

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

.logo {
    font-family: var(--font-heading);
    font-size: 1.5rem;
    font-weight: 700;
    letter-spacing: 1px;
    color: var(--clr-text-light);
    display: flex;
    align-items: center;
}

.logo-stock {
    color: var(--clr-text-light);
}

.logo-ceramic {
    color: var(--clr-accent);
    margin-left: 5px;
}

.nav-list {
    display: flex;
    align-items: center;
    gap: 2rem;
}

.nav-link {
    color: var(--clr-text-light);
    font-size: 0.9rem;
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 1px;
    position: relative;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 0%;
    height: 2px;
    background-color: var(--clr-accent);
    transition: var(--transition-normal);
}

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

.btn-nav {
    border: 1px solid var(--clr-accent);
    padding: 0.5rem 1rem;
    border-radius: 2px;
}
.btn-nav::after { display: none; }
.btn-nav:hover {
    background-color: var(--clr-accent);
    color: #fff;
}

.mobile-menu-btn {
    display: none;
    color: var(--clr-text-light);
    font-size: 1.5rem;
    cursor: pointer;
}

/* Hero Section */
.hero {
    position: relative;
    height: 100vh;
    min-height: 600px;
    background: url('https://images.unsplash.com/photo-1558211583-d26f610c1eb1?ixlib=rb-4.0.3&auto=format&fit=crop&w=1920&q=80') center/cover no-repeat;
    display: flex;
    align-items: center;
}

.hero-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, rgba(18,21,28,0.9) 0%, rgba(18,21,28,0.6) 50%, rgba(18,21,28,0.3) 100%);
}

.hero-content {
    position: relative;
    z-index: 10;
    max-width: 700px;
    color: var(--clr-text-light);
    animation: fadeInUp 1s ease forwards;
    opacity: 0;
    transform: translateY(30px);
}

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

.hero-title {
    font-size: 4rem;
    color: var(--clr-text-light);
    margin-bottom: 1.5rem;
    font-weight: 700;
}

.hero-subtitle {
    font-size: 1.1rem;
    color: var(--clr-text-muted);
    margin-bottom: 2.5rem;
    font-weight: 300;
    max-width: 600px;
}

.hero-buttons {
    display: flex;
    gap: 1rem;
}

/* Section Common */
section {
    padding: 6rem 0;
}

.section-title {
    font-size: 2.5rem;
    margin-bottom: 1rem;
}

.title-separator {
    width: 60px;
    height: 3px;
    background-color: var(--clr-accent);
    margin-bottom: 2rem;
}

.title-separator.center {
    margin: 0 auto 2rem auto;
}

.section-desc {
    max-width: 700px;
    margin: 0 auto 3rem auto;
    color: var(--clr-text-muted);
    font-size: 1.1rem;
}

/* Features */
.features {
    background-color: var(--clr-bg-light);
    margin-top: -60px;
    position: relative;
    z-index: 20;
    padding: 0;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    background-color: #fff;
    box-shadow: var(--shadow-lg);
}

.feature-card {
    padding: 3rem 2rem;
    text-align: center;
    border-right: 1px solid rgba(0,0,0,0.05);
    transition: var(--transition-normal);
}

.feature-card:last-child {
    border-right: none;
}

.feature-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-md);
    z-index: 2;
}

.feature-icon {
    font-size: 2.5rem;
    color: var(--clr-accent);
    margin-bottom: 1.5rem;
}

.feature-card h3 {
    font-size: 1.2rem;
    margin-bottom: 1rem;
    font-family: var(--font-body);
}

.feature-card p {
    font-size: 0.9rem;
    color: #666;
}

/* About Section */
.about {
    background-color: var(--clr-bg-offwhite);
}

.about-container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
}

.about-text p {
    margin-bottom: 1.5rem;
    color: #555;
    font-size: 1.05rem;
}

.link-arrow {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    color: var(--clr-accent);
    font-weight: 600;
    text-transform: uppercase;
    font-size: 0.9rem;
    letter-spacing: 1px;
    margin-top: 1rem;
}

.link-arrow i {
    transition: transform 0.3s ease;
}

.link-arrow:hover i {
    transform: translateX(5px);
}

.about-image {
    position: relative;
}

.about-image img {
    border-radius: 2px;
    box-shadow: var(--shadow-lg);
}

.about-image::before {
    content: '';
    position: absolute;
    top: -20px;
    left: -20px;
    width: 100px;
    height: 100px;
    border-top: 4px solid var(--clr-accent);
    border-left: 4px solid var(--clr-accent);
    z-index: 1;
}

.about-image::after {
    content: '';
    position: absolute;
    bottom: -20px;
    right: -20px;
    width: 100px;
    height: 100px;
    border-bottom: 4px solid var(--clr-accent);
    border-right: 4px solid var(--clr-accent);
    z-index: 1;
}

/* Products Section */
.products {
    background-color: var(--clr-bg-light);
}

.products-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    margin-bottom: 4rem;
}

.product-card {
    background: #fff;
    border-radius: 2px;
    overflow: hidden;
    box-shadow: var(--shadow-sm);
    transition: var(--transition-normal);
}

.product-card:hover {
    box-shadow: var(--shadow-lg);
    transform: translateY(-10px);
}

.product-img-wrapper {
    position: relative;
    overflow: hidden;
    height: 300px;
}

.product-img-wrapper img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.8s ease;
}

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

.product-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(18, 21, 28, 0.4);
    display: flex;
    justify-content: center;
    align-items: center;
    opacity: 0;
    transition: var(--transition-normal);
}

.product-card:hover .product-overlay {
    opacity: 1;
}

.product-info {
    padding: 2rem;
}

.product-info h3 {
    font-size: 1.4rem;
    margin-bottom: 0.5rem;
}

.product-info p {
    color: #666;
    font-size: 0.95rem;
}

.liquidacion-banner {
    background-color: var(--clr-primary);
    color: var(--clr-text-light);
    padding: 3rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    border-radius: 2px;
    border-left: 5px solid var(--clr-accent);
}

.liquidacion-banner h3 {
    color: #fff;
    font-family: var(--font-body);
    font-size: 1.5rem;
    margin-bottom: 0.5rem;
}

.liquidacion-banner p {
    color: var(--clr-text-muted);
}

/* Testimonials */
.testimonials {
    background-color: var(--clr-secondary);
    color: var(--clr-text-light);
    padding: 6rem 0;
}

.testimonial-slider {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    margin-top: 4rem;
}

.testimonial-card {
    background-color: var(--clr-primary);
    padding: 3rem 2rem;
    border-radius: 2px;
    position: relative;
    border-top: 3px solid transparent;
    transition: var(--transition-normal);
}

.testimonial-card:hover {
    border-top-color: var(--clr-accent);
    transform: translateY(-5px);
}

.quote-icon {
    font-size: 2rem;
    color: rgba(197, 164, 126, 0.2);
    position: absolute;
    top: 2rem;
    right: 2rem;
}

.testimonial-card p {
    font-style: italic;
    color: var(--clr-text-muted);
    margin-bottom: 1.5rem;
    position: relative;
    z-index: 2;
}

.testimonial-card h4 {
    font-family: var(--font-body);
    color: var(--clr-accent);
    font-size: 1rem;
    text-transform: uppercase;
    letter-spacing: 1px;
}

/* Contact */
.contact {
    background-color: var(--clr-bg-light);
}

.contact-container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
}

.contact-details {
    margin-top: 2rem;
}

.contact-details li {
    display: flex;
    align-items: center;
    gap: 15px;
    margin-bottom: 1.5rem;
    color: #555;
}

.contact-details i {
    color: var(--clr-accent);
    font-size: 1.2rem;
    width: 20px;
}

.contact-details a:hover {
    color: var(--clr-accent);
}

.contact-form-wrapper {
    background-color: #fff;
    padding: 3rem;
    box-shadow: var(--shadow-lg);
    border-radius: 2px;
}

.contact-form-wrapper h3 {
    margin-bottom: 2rem;
    font-family: var(--font-body);
    font-size: 1.5rem;
}

.form-group {
    margin-bottom: 1.5rem;
    position: relative;
}

.form-group label {
    display: block;
    margin-bottom: 0.5rem;
    font-size: 0.9rem;
    font-weight: 500;
    color: #444;
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 0.8rem 1rem;
    border: 1px solid #ddd;
    border-radius: 2px;
    font-family: var(--font-body);
    font-size: 1rem;
    transition: var(--transition-fast);
    background-color: #fcfcfc;
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--clr-accent);
    background-color: #fff;
    box-shadow: 0 0 0 3px rgba(197, 164, 126, 0.1);
}

.form-group.checkbox-group {
    display: flex;
    align-items: flex-start;
    gap: 10px;
}

.form-group.checkbox-group input {
    width: auto;
    margin-top: 4px;
}

.form-group.checkbox-group label {
    font-weight: 400;
    font-size: 0.85rem;
    color: #666;
}

.form-group.checkbox-group a {
    color: var(--clr-primary);
    text-decoration: underline;
}

.error-msg {
    display: none;
    color: #e74c3c;
    font-size: 0.8rem;
    margin-top: 0.5rem;
}

.form-group.invalid input,
.form-group.invalid textarea {
    border-color: #e74c3c;
}

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

.btn-submit {
    width: 100%;
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 10px;
    padding: 1rem;
}

.form-status {
    margin-top: 1rem;
    padding: 1rem;
    border-radius: 2px;
    display: none;
    text-align: center;
    font-size: 0.9rem;
}

.form-status.success {
    display: block;
    background-color: #e8f8f5;
    color: #117a65;
    border: 1px solid #d1f2eb;
}

.form-status.error {
    display: block;
    background-color: #fdedec;
    color: #c0392b;
    border: 1px solid #fadbd8;
}

/* Footer */
.footer {
    background-color: var(--clr-primary);
    color: var(--clr-text-muted);
    padding-top: 5rem;
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: 3rem;
    margin-bottom: 4rem;
}

.footer-logo {
    margin-bottom: 1.5rem;
    display: block;
}

.footer-col h4 {
    color: #fff;
    font-family: var(--font-body);
    font-size: 1.1rem;
    margin-bottom: 1.5rem;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.footer-col ul li {
    margin-bottom: 0.8rem;
}

.footer-col ul li a:hover {
    color: var(--clr-accent);
}

.footer-bottom {
    border-top: 1px solid rgba(255,255,255,0.05);
    padding: 1.5rem 0;
    text-align: center;
    font-size: 0.85rem;
}

/* Catalogo PDF Viewer */
.page-catalogo {
    padding-top: 80px;
}

.catalogo-main {
    padding: 3rem 0 6rem 0;
}

.catalogo-header {
    text-align: center;
    margin-bottom: 3rem;
}

.pdf-viewer-wrapper {
    background-color: #fff;
    border-radius: 2px;
    box-shadow: var(--shadow-lg);
    padding: 2rem;
    max-width: 1000px;
    margin: 0 auto;
}

.pdf-controls {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 15px;
    margin-bottom: 2rem;
    flex-wrap: wrap;
    background-color: var(--clr-bg-offwhite);
    padding: 1rem;
    border-radius: 2px;
    border: 1px solid #eee;
}

.pdf-page-info {
    font-weight: 500;
    min-width: 150px;
    text-align: center;
    font-size: 0.95rem;
}

.pdf-render-container {
    display: flex;
    justify-content: center;
    background-color: #e9ecef;
    padding: 2rem;
    min-height: 500px;
    border: 1px solid #ddd;
    overflow: auto;
    border-radius: 2px;
}

#the-canvas {
    direction: ltr;
    box-shadow: var(--shadow-md);
    background-color: white;
}

.btn-zoom {
    color: var(--clr-primary);
    border-color: var(--clr-primary);
}

.btn-zoom:hover {
    background-color: var(--clr-primary);
    color: #fff;
}

.btn-back {
    color: var(--clr-primary);
    border-color: var(--clr-primary);
    font-weight: 600;
}

.btn-back:hover {
    background-color: var(--clr-primary);
    color: #fff;
}

/* Responsive */
@media (max-width: 992px) {
    .features-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    .feature-card:nth-child(2) {
        border-right: none;
    }
    .feature-card {
        border-bottom: 1px solid rgba(0,0,0,0.05);
    }
    
    .about-container,
    .contact-container {
        grid-template-columns: 1fr;
    }
    
    .about-image {
        order: -1;
    }
    
    .liquidacion-banner {
        flex-direction: column;
        text-align: center;
        gap: 2rem;
    }
    
    .footer-grid {
        grid-template-columns: 1fr 1fr;
    }
}

@media (max-width: 768px) {
    .hero-title {
        font-size: 2.5rem;
    }
    
    .nav-list {
        position: absolute;
        top: 100%;
        left: 0;
        width: 100%;
        background-color: var(--clr-primary);
        flex-direction: column;
        padding: 2rem 0;
        gap: 1.5rem;
        transform: translateY(-150%);
        transition: transform 0.3s ease;
        z-index: -1;
    }
    
    .nav-list.active {
        transform: translateY(0);
        box-shadow: var(--shadow-md);
    }
    
    .mobile-menu-btn {
        display: block;
    }
    
    .header {
        background-color: var(--clr-primary);
        padding: 1rem 0;
    }
    
    .hero-buttons {
        flex-direction: column;
    }
    
    .features-grid {
        grid-template-columns: 1fr;
    }
    .feature-card {
        border-right: none;
    }
    
    .footer-grid {
        grid-template-columns: 1fr;
    }
}