/* Hide burger when menu is open */
@media (max-width: 900px) {
    .mobile-menu-toggle.hide-when-open {
        display: none !important;
    }
}
/* --- Burger Menu Responsive Styles --- */
@media (max-width: 900px) {
    .mobile-menu-toggle {
        display: flex;
        flex-direction: column;
        justify-content: center;
        align-items: center;
        width: 48px;
        height: 48px;
        background: none;
        border: none;
        cursor: pointer;
        z-index: 2001;
        position: absolute;
        top: 18px;
        right: 18px;
    }
    .mobile-menu-toggle .burger-bar {
        width: 32px;
        height: 4px;
        background: var(--primary-color, #1a0068);
        margin: 4px 0;
        border-radius: 2px;
        transition: 0.3s;
    }
    .nav-menu {
        position: fixed;
        top: 0;
        right: -100vw;
        width: 80vw;
        max-width: 320px;
        height: 100vh;
        background: #fff;
        box-shadow: 0 0 30px rgba(0,0,0,0.15);
        flex-direction: column;
        align-items: flex-start;
        padding: 80px 30px 30px 30px;
        gap: 24px;
        transition: right 0.3s cubic-bezier(0.4,0,0.2,1);
        z-index: 2000;
    }
    .nav-menu.open {
        right: 0;
    }
    .nav-menu .close-menu {
        display: block;
        position: absolute;
        top: 24px;
        right: 24px;
        background: none;
        border: none;
        font-size: 2rem;
        color: var(--primary-color, #1a0068);
        cursor: pointer;
        z-index: 2002;
    }
}
@media (min-width: 901px) {
    .mobile-menu-toggle { display: none !important; }
    .nav-menu {
        position: static !important;
        flex-direction: row !important;
        height: auto !important;
        width: auto !important;
        background: none !important;
        box-shadow: none !important;
        padding: 0 !important;
        gap: 40px !important;
    }
    .nav-menu .close-menu { display: none !important; }
}
/* ========================================
   LANZAQUIMICA - MODERN STYLESHEET
   ======================================== */

/* CSS Variables for consistent theming */
:root {
    --primary-color: #1a0068;
    --primary-dark: #0d0033;
    --primary-light: #4a148c;
    --secondary-color: #f8f9fa;
    --accent-color: #ff6b35;
    --text-dark: #2c3e50;
    --text-light: #6c757d;
    --text-white: #ffffff;
    --border-color: #e9ecef;
    --shadow-light: 0 2px 10px rgba(0,0,0,0.1);
    --shadow-medium: 0 5px 20px rgba(0,0,0,0.15);
    --shadow-heavy: 0 10px 30px rgba(0,0,0,0.2);
    --border-radius: 8px;
    --border-radius-lg: 12px;
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    --font-primary: 'Open Sans', -apple-system, BlinkMacSystemFont, sans-serif;
    --font-heading: 'Raleway', -apple-system, BlinkMacSystemFont, sans-serif;
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-primary);
    line-height: 1.7;
    color: var(--text-dark);
    background-color: var(--text-white);
    font-size: 16px;
    overflow-x: hidden;
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-heading);
    font-weight: 700;
    line-height: 1.3;
    margin-bottom: 1.5rem;
    color: var(--primary-color);
}

h1 {
    font-size: clamp(2.5rem, 5vw, 3.5rem);
    font-weight: 800;
    letter-spacing: -0.02em;
}

h2 {
    font-size: clamp(2rem, 4vw, 2.5rem);
    font-weight: 700;
}

h3 {
    font-size: clamp(1.5rem, 3vw, 1.8rem);
    font-weight: 600;
}

p {
    margin-bottom: 1.5rem;
    color: var(--text-light);
    font-size: 1.1rem;
    line-height: 1.8;
}

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

/* Header Styles */
.header {
    background: var(--text-white);
    box-shadow: var(--shadow-light);
    position: sticky;
    top: 0;
    z-index: 1000;
    backdrop-filter: blur(10px);
    background: rgba(255, 255, 255, 0.95);
}

.header-top {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--primary-light) 100%);
    color: var(--text-white);
    padding: 12px 0;
    font-size: 0.9rem;
}

.contact-info {
    display: flex;
    justify-content: flex-end;
    gap: 30px;
    align-items: center;
}

.contact-info a {
    color: var(--text-white);
    text-decoration: none;
    transition: var(--transition);
    display: flex;
    align-items: center;
    gap: 8px;
}

.contact-info a:hover {
    color: var(--accent-color);
    transform: translateY(-1px);
}

.header-main {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 20px;
}

.logo-img {
    height: 70px;
    width: auto;
    max-width: 250px;
    object-fit: contain;
    display: block;
    border-radius: var(--border-radius);
    transition: var(--transition);
    filter: drop-shadow(0 4px 8px rgba(0,0,0,0.1));
}

.logo-img:hover {
    transform: scale(1.05);
    filter: drop-shadow(0 6px 12px rgba(0,0,0,0.15));
}

/* Navigation */
.nav-menu {
    display: flex;
    list-style: none;
    gap: 40px;
    align-items: center;
}

.nav-menu a {
    text-decoration: none;
    color: var(--text-dark);
    font-weight: 600;
    padding: 12px 0;
    transition: var(--transition);
    position: relative;
    font-size: 1rem;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.nav-menu a:hover,
.nav-menu a.active {
    color: var(--primary-color);
}

.nav-menu a::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    width: 0;
    height: 3px;
    background: linear-gradient(90deg, var(--primary-color), var(--accent-color));
    transition: var(--transition);
    transform: translateX(-50%);
    border-radius: 2px;
}

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

/* Dropdown */
.dropdown {
    position: relative;
}

.dropdown-menu {
    position: absolute;
    top: 100%;
    left: 0;
    background: var(--text-white);
    box-shadow: var(--shadow-medium);
    min-width: 250px;
    opacity: 0;
    visibility: hidden;
    transform: translateY(-10px);
    transition: var(--transition);
    list-style: none;
    border-radius: var(--border-radius-lg);
    z-index: 1001;
    padding: 10px 0;
    border: 1px solid var(--border-color);
}

.dropdown:hover .dropdown-menu {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.dropdown-menu li {
    border-bottom: 1px solid var(--border-color);
}

.dropdown-menu li:last-child {
    border-bottom: none;
}

.dropdown-menu a {
    display: block;
    padding: 15px 25px;
    color: var(--text-dark);
    text-decoration: none;
    transition: var(--transition);
    font-weight: 500;
    text-transform: none;
    letter-spacing: normal;
}

.dropdown-menu a:hover {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--primary-light) 100%);
    color: var(--text-white);
    transform: translateX(5px);
}

/* Hero Section */
.hero {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--primary-light) 100%);
    color: var(--text-white);
    padding: 120px 0;
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 100"><defs><pattern id="grain" width="100" height="100" patternUnits="userSpaceOnUse"><circle cx="50" cy="50" r="1" fill="white" opacity="0.1"/></pattern></defs><rect width="100" height="100" fill="url(%23grain)"/></svg>');
    opacity: 0.3;
}

.hero-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 80px;
    align-items: center;
    position: relative;
    z-index: 2;
}

.hero h1 {
    color: var(--text-white);
    margin-bottom: 30px;
    text-shadow: 0 2px 4px rgba(0,0,0,0.3);
}

.hero p {
    color: rgba(255, 255, 255, 0.9);
    font-size: 1.2rem;
    margin-bottom: 40px;
    line-height: 1.8;
}

.hero-buttons {
    display: flex;
    gap: 25px;
    flex-wrap: wrap;
}

/* Button Styles */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 16px 32px;
    text-decoration: none;
    border-radius: var(--border-radius-lg);
    font-weight: 700;
    transition: var(--transition);
    border: none;
    cursor: pointer;
    font-size: 1rem;
    text-transform: uppercase;
    letter-spacing: 1px;
    position: relative;
    overflow: hidden;
    min-width: 160px;
}

.btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255,255,255,0.2), transparent);
    transition: left 0.5s;
}

.btn:hover::before {
    left: 100%;
}

.btn-primary {
    background: linear-gradient(135deg, var(--accent-color) 0%, #ff8c42 100%);
    color: var(--text-white);
    box-shadow: var(--shadow-medium);
}

.btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-heavy);
}

.btn-secondary {
    background: transparent;
    color: var(--text-white);
    border: 3px solid var(--text-white);
    backdrop-filter: blur(10px);
}

.btn-secondary:hover {
    background: var(--text-white);
    color: var(--primary-color);
    transform: translateY(-3px);
}

.hero-image {
    text-align: center;
    position: relative;
}

.welcome-img {
    max-width: 100%;
    height: auto;
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow-heavy);
    transition: var(--transition);
    position: relative;
    z-index: 2;
}

.welcome-img img {
    width: 100%;
    height: auto;
    border-radius: var(--border-radius-lg);
}

.welcome-img:hover {
    transform: scale(1.02) rotate(1deg);
}

/* Eco Section */
.eco-section {
    padding: 120px 0;
    background: linear-gradient(135deg, var(--secondary-color) 0%, #ffffff 100%);
    position: relative;
}

.eco-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 80px;
    align-items: center;
}

.eco-features {
    margin: 40px 0;
}

.eco-feature {
    background: var(--text-white);
    padding: 30px;
    margin-bottom: 20px;
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow-light);
    border-left: 5px solid var(--primary-color);
    transition: var(--transition);
    position: relative;
    overflow: hidden;
}

.eco-feature::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--primary-light) 100%);
    opacity: 0;
    transition: var(--transition);
    z-index: -1;
}

.eco-feature:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-medium);
    border-left-color: var(--accent-color);
}

.eco-feature:hover::before {
    opacity: 0.05;
}

.eco-feature h3 {
    margin-bottom: 10px;
    font-size: 1.3rem;
    color: var(--primary-color);
}

.btn-eco {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--primary-light) 100%);
    color: var(--text-white);
    padding: 18px 36px;
    border-radius: var(--border-radius-lg);
    text-decoration: none;
    display: inline-flex;
    align-items: center;
    gap: 10px;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 1px;
    transition: var(--transition);
    box-shadow: var(--shadow-light);
}

.btn-eco:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-medium);
    color: var(--text-white);
    text-decoration: none;
}

.eco-image {
    text-align: center;
    position: relative;
}

.eco-img {
    max-width: 100%;
    height: auto;
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow-medium);
    transition: var(--transition);
}

.eco-img:hover {
    transform: scale(1.05);
}

/* Categories Section */
.categories {
    padding: 120px 0;
    background: var(--text-white);
}

.categories h2 {
    text-align: center;
    margin-bottom: 80px;
    position: relative;
}

.categories h2::after {
    content: '';
    position: absolute;
    bottom: -20px;
    left: 50%;
    transform: translateX(-50%);
    width: 80px;
    height: 4px;
    background: linear-gradient(90deg, var(--primary-color), var(--accent-color));
    border-radius: 2px;
}

.categories-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 40px;
}

/* Category Cards */
.category-card {
    background: var(--text-white);
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow-light);
    transition: var(--transition);
    overflow: hidden;
    display: flex;
    flex-direction: column;
    position: relative;
    border: 1px solid var(--border-color);
}

.category-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, var(--primary-color), var(--accent-color));
    transform: scaleX(0);
    transition: var(--transition);
}

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

.category-card:hover::before {
    transform: scaleX(1);
}

.category-card h3 {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--primary-light) 100%);
    color: var(--text-white);
    margin: 0;
    padding: 25px;
    font-size: 1.3rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 1px;
    text-align: center;
}

.category-card .card-content {
    padding: 30px;
    flex-grow: 1;
    display: flex;
    flex-direction: column;
}

.category-card p {
    margin-bottom: 20px;
    color: var(--text-light);
    flex-grow: 1;
    font-size: 1.1rem;
    line-height: 1.8;
}

.category-link {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--primary-light) 100%);
    color: var(--text-white);
    text-decoration: none;
    font-weight: 700;
    padding: 16px 24px;
    border-radius: var(--border-radius);
    text-align: center;
    text-transform: uppercase;
    letter-spacing: 1px;
    transition: var(--transition);
    margin-top: auto;
    position: relative;
    overflow: hidden;
}

.category-link::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255,255,255,0.2), transparent);
    transition: left 0.5s;
}

.category-link:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-medium);
    color: var(--text-white);
    text-decoration: none;
}

.category-link:hover::before {
    left: 100%;
}

/* Product Image Styles */
.product-image-container {
    margin-bottom: 25px;
    text-align: center;
    position: relative;
}

.product-image {
    width: 100%;
    height: 250px;
    object-fit: contain;
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow-light);
    transition: var(--transition);
    background: linear-gradient(135deg, var(--secondary-color) 0%, #ffffff 100%);
    padding: 20px;
    border: 1px solid var(--border-color);
}

.product-image:hover {
    transform: scale(1.05);
    box-shadow: var(--shadow-medium);
}

.product-info {
    flex-grow: 1;
}

.product-info p {
    margin-bottom: 20px;
    color: var(--text-light);
    line-height: 1.8;
    font-size: 1.1rem;
}

.product-info p strong {
    color: var(--primary-color);
    font-weight: 700;
}

/* Footer */
.footer {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--primary-dark) 100%);
    color: var(--text-white);
    padding: 80px 0 30px;
    position: relative;
}

.footer::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, var(--accent-color), var(--primary-light));
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 50px;
    margin-bottom: 50px;
}

.footer-section h3 {
    color: var(--text-white);
    margin-bottom: 25px;
    font-size: 1.4rem;
    position: relative;
}

.footer-section h3::after {
    content: '';
    position: absolute;
    bottom: -10px;
    left: 0;
    width: 40px;
    height: 3px;
    background: var(--accent-color);
    border-radius: 2px;
}

.footer-section p {
    color: rgba(255, 255, 255, 0.8);
    margin-bottom: 15px;
    font-size: 1rem;
    line-height: 1.7;
}

.footer-section ul {
    list-style: none;
}

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

.footer-section ul li a {
    color: rgba(255, 255, 255, 0.8);
    text-decoration: none;
    transition: var(--transition);
    display: inline-block;
    position: relative;
}

.footer-section ul li a::before {
    content: '→';
    position: absolute;
    left: -20px;
    opacity: 0;
    transition: var(--transition);
    color: var(--accent-color);
}

.footer-section ul li a:hover {
    color: var(--text-white);
    transform: translateX(20px);
}

.footer-section ul li a:hover::before {
    opacity: 1;
}

.footer-bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    padding-top: 30px;
    text-align: center;
}

.footer-bottom p {
    color: rgba(255, 255, 255, 0.6);
    margin-bottom: 0;
    font-size: 0.9rem;
}

/* Responsive Design */
@media (max-width: 1024px) {
    .hero-content,
    .eco-content {
        gap: 60px;
    }
    
    .categories-grid {
        grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
        gap: 30px;
    }
}

@media (max-width: 768px) {
    .header-main {
        flex-direction: column;
        gap: 25px;
    }
    
    .nav-menu {
        flex-direction: column;
        gap: 15px;
        text-align: center;
        width: 100%;
    }
    
    .dropdown-menu {
        position: static;
        opacity: 1;
        visibility: visible;
        transform: none;
        box-shadow: none;
        background: var(--secondary-color);
        margin-top: 15px;
        border-radius: var(--border-radius);
    }
    
    .hero-content,
    .eco-content {
        grid-template-columns: 1fr;
        gap: 50px;
    }
    
    .hero {
        padding: 80px 0;
    }
    
    .eco-section,
    .categories {
        padding: 80px 0;
    }
    
    .hero-buttons {
        justify-content: center;
        flex-direction: column;
        align-items: center;
    }
    
    .categories-grid {
        grid-template-columns: 1fr;
        gap: 30px;
    }
    
    .contact-info {
        justify-content: center;
        gap: 20px;
        flex-wrap: wrap;
    }
    
    .mobile-menu-toggle {
        display: flex;
    }
    
    .nav {
        display: none;
    }
    
    .nav.active {
        display: block;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 15px;
    }
    
    .hero {
        padding: 60px 0;
    }
    
    .eco-section,
    .categories {
        padding: 60px 0;
    }
    
    .hero-buttons {
        flex-direction: column;
        align-items: center;
        gap: 15px;
    }
    
    .btn {
        width: 100%;
        max-width: 280px;
        text-align: center;
    }
    
    .category-card .card-content {
        padding: 20px;
    }
    
    .footer-content {
        grid-template-columns: 1fr;
        gap: 40px;
    }
    
    .product-image {
        height: 200px;
        padding: 15px;
    }
}

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

@keyframes slideInLeft {
    from {
        opacity: 0;
        transform: translateX(-30px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

@keyframes slideInRight {
    from {
        opacity: 0;
        transform: translateX(30px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

/* Apply animations to elements */
.hero-content > * {
    animation: fadeInUp 0.8s ease-out;
}

.eco-content > *:first-child {
    animation: slideInLeft 0.8s ease-out;
}

.eco-content > *:last-child {
    animation: slideInRight 0.8s ease-out;
}

.category-card {
    animation: fadeInUp 0.6s ease-out;
}

/* Smooth scrolling for anchor links */
html {
    scroll-behavior: smooth;
}

/* Focus styles for accessibility */
.btn:focus,
.nav-menu a:focus,
.category-link:focus {
    outline: 3px solid var(--accent-color);
    outline-offset: 2px;
}

/* Additional classes for cleaned inline styles */
.logo-text {
    display: none;
    font-size: 24px;
    font-weight: bold;
    color: var(--primary-color);
}

.nav-link {
    text-decoration: none;
    color: var(--text-dark);
    transition: var(--transition);
}

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

.nav-link.active::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    width: 100%;
    height: 3px;
    background: linear-gradient(90deg, var(--primary-color), var(--accent-color));
    transition: var(--transition);
    transform: translateX(-50%);
    border-radius: 2px;
}

.contact-separator {
    margin-left: 20px;
}

.text-small {
    font-size: 1rem;
    font-weight: normal;
}

.hero-subtitle {
    color: rgba(255, 255, 255, 0.9);
    font-size: 18px;
}

.eco-hero {
    background: linear-gradient(135deg, #4CAF50 0%, #45a049 100%);
}

.mission-card {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--primary-light) 100%);
    color: var(--text-white);
    padding: 30px;
    border-radius: var(--border-radius-lg);
    text-align: center;
}

.eco-products-card {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--primary-light) 100%);
    color: var(--text-white);
    padding: 30px;
    border-radius: var(--border-radius-lg);
    margin-top: 30px;
}

.section-spacer {
    margin: 30px 0;
}

.hidden-title {
    display: none;
    font-size: 48px;
    font-weight: bold;
    color: var(--primary-color);
    margin-bottom: 30px;
}

/* Loading states */
.btn.loading {
    position: relative;
    color: transparent;
}

.btn.loading::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 20px;
    height: 20px;
    border: 2px solid transparent;
    border-top: 2px solid currentColor;
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

@keyframes spin {
    to {
        transform: translate(-50%, -50%) rotate(360deg);
    }
}