/* ============================================
   NUTRISABORES - Modern Parallax Website
   ============================================ */

/* ============================================
   ROOT VARIABLES & RESET
   ============================================ */
:root {
    /* Color Palette - Modern & Professional */
    --primary-color: #2c5f2d;        /* Deep Green */
    --primary-dark: #1d4120;
    --primary-light: #4a8a4d;
    --secondary-color: #f97316;      /* Orange Accent */
    --secondary-dark: #ea580c;
    --secondary-light: #fb923c;
    
    /* Neutral Colors */
    --dark-bg: #0f172a;
    --dark-text: #1e293b;
    --light-bg: #f8fafc;
    --white: #ffffff;
    --gray-50: #f9fafb;
    --gray-100: #f3f4f6;
    --gray-200: #e5e7eb;
    --gray-300: #d1d5db;
    --gray-400: #9ca3af;
    --gray-500: #6b7280;
    --gray-600: #4b5563;
    --gray-700: #374151;
    --gray-800: #1f2937;
    --gray-900: #111827;
    
    /* Typography */
    --font-primary: 'Montserrat', sans-serif;
    --font-secondary: 'Open Sans', sans-serif;
    
    /* Spacing */
    --section-padding: 100px 0;
    --container-padding: 0 20px;
    
    /* Transitions */
    --transition-fast: 0.2s ease;
    --transition-normal: 0.3s ease;
    --transition-slow: 0.5s ease;
    
    /* Shadows */
    --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);
}

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

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

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

/* ============================================
   TYPOGRAPHY
   ============================================ */
h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-primary);
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: 1rem;
}

h1 { font-size: clamp(2.5rem, 5vw, 4rem); }
h2 { font-size: clamp(2rem, 4vw, 3rem); }
h3 { font-size: clamp(1.5rem, 3vw, 2rem); }
h4 { font-size: clamp(1.25rem, 2vw, 1.5rem); }

p {
    margin-bottom: 1rem;
    line-height: 1.8;
}

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

ul {
    list-style: none;
}

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

/* ============================================
   UTILITY CLASSES
   ============================================ */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: var(--container-padding);
}

.btn {
    display: inline-block;
    padding: 14px 32px;
    font-family: var(--font-primary);
    font-weight: 600;
    font-size: 1rem;
    border-radius: 50px;
    cursor: pointer;
    transition: var(--transition-normal);
    border: 2px solid transparent;
    text-align: center;
}

.btn-primary {
    background: var(--primary-color);
    color: var(--white);
    border-color: var(--primary-color);
}

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

.btn-secondary {
    background: transparent;
    color: var(--white);
    border-color: var(--white);
}

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

.btn-block {
    width: 100%;
    display: block;
}

.btn:disabled {
    opacity: 0.6;
    cursor: not-allowed;
    pointer-events: none;
}

.btn .fa-spinner {
    animation: spin 1s linear infinite;
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

/* ============================================
   HEADER & NAVIGATION
   ============================================ */
#header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1000;
    transition: var(--transition-normal);
    background: rgba(15, 23, 42, 0.95);
    -webkit-backdrop-filter: blur(10px);
    backdrop-filter: blur(10px);
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
}

.navbar {
    padding: 15px 0;
}

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

.logo img {
    height: 50px;
    width: auto;
}

.nav-menu {
    display: flex;
    align-items: center;
    gap: 3rem;
}

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

.nav-link {
    color: var(--white);
    font-family: var(--font-primary);
    font-weight: 500;
    font-size: 0.95rem;
    position: relative;
    padding: 5px 0;
}

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

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

.language-toggle {
    display: flex;
    align-items: center;
    gap: 10px;
    background: rgba(255, 255, 255, 0.1);
    padding: 8px 16px;
    border-radius: 25px;
}

.lang-btn {
    background: transparent;
    border: none;
    color: var(--white);
    font-family: var(--font-primary);
    font-weight: 600;
    font-size: 0.9rem;
    cursor: pointer;
    padding: 4px 10px;
    border-radius: 15px;
    transition: var(--transition-fast);
}

.lang-btn.active {
    background: var(--secondary-color);
}

.lang-btn:hover:not(.active) {
    background: rgba(255, 255, 255, 0.2);
}

.separator {
    color: var(--gray-400);
}

/* Hamburger Menu */
.hamburger {
    display: none;
    flex-direction: column;
    gap: 5px;
    cursor: pointer;
    padding: 5px;
}

.hamburger span {
    width: 28px;
    height: 3px;
    background: var(--white);
    border-radius: 3px;
    transition: var(--transition-normal);
}

.hamburger.active span:nth-child(1) {
    transform: rotate(45deg) translate(8px, 8px);
}

.hamburger.active span:nth-child(2) {
    opacity: 0;
}

.hamburger.active span:nth-child(3) {
    transform: rotate(-45deg) translate(7px, -7px);
}

/* ============================================
   HERO SECTION
   ============================================ */
.hero-section {
    position: relative;
    height: 100vh;
    min-height: 700px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, var(--dark-bg) 0%, var(--primary-dark) 100%);
    overflow: hidden;
}

/* Hero Slider */
.hero-slider {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 0;
}

.hero-slide {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
    opacity: 0;
    transition: opacity 1.2s cubic-bezier(0.4, 0, 0.2, 1);
  
}

.hero-slide.active {
    opacity: 1;
}

/* Fallback gradient if images don't load */
.hero-slide::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, var(--dark-bg) 0%, var(--primary-dark) 100%);
    z-index: -1;
}

.hero-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: radial-gradient(circle at center, transparent 0%, rgba(15, 23, 42, 0.7) 100%);
    z-index: 1;
}

.hero-content {
    position: relative;
    z-index: 2;
    text-align: center;
    color: var(--white);
    padding: 0 20px;
}

.hero-title {
    color: var(--white);
    font-weight: 800;
    margin-bottom: 1rem;
    text-shadow: 0 4px 20px rgba(0, 0, 0, 0.5);
}

.hero-subtitle {
    font-size: clamp(1.5rem, 3vw, 2rem);
    color: var(--secondary-color);
    font-weight: 600;
    margin-bottom: 1.5rem;
    text-shadow: 0 2px 10px rgba(0, 0, 0, 0.5);
}

.hero-description {
    font-size: clamp(1rem, 2vw, 1.25rem);
    color: var(--gray-200);
    max-width: 700px;
    margin: 0 auto 2.5rem;
    line-height: 1.8;
    text-shadow: 0 2px 10px rgba(0, 0, 0, 0.5);
}

.hero-buttons {
    display: flex;
    gap: 1.5rem;
    justify-content: center;
    flex-wrap: wrap;
}

/* Slider Controls */
.slider-controls {
    position: absolute;
    bottom: 80px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    align-items: center;
    gap: 2rem;
    z-index: 3;
}

.slider-btn {
    background: rgba(255, 255, 255, 0.2);
    border: 2px solid rgba(255, 255, 255, 0.3);
    color: var(--white);
    width: 45px;
    height: 45px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: var(--transition-normal);
    -webkit-backdrop-filter: blur(10px);
    backdrop-filter: blur(10px);
}

.slider-btn:hover {
    background: var(--secondary-color);
    border-color: var(--secondary-color);
    transform: scale(1.1);
}

.slider-indicators {
    display: flex;
    gap: 12px;
    align-items: center;
}

.slider-indicator {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.4);
    border: 2px solid rgba(255, 255, 255, 0.6);
    cursor: pointer;
    transition: var(--transition-fast);
    padding: 0;
}

.slider-indicator:hover {
    background: rgba(255, 255, 255, 0.6);
    transform: scale(1.2);
}

.slider-indicator.active {
    background: var(--secondary-color);
    border-color: var(--secondary-color);
    width: 32px;
    border-radius: 6px;
}

/* Animations */
.animate-fade-in {
    animation: fadeInUp 1s ease-out;
}

.animate-fade-in-delay {
    animation: fadeInUp 1s ease-out 0.3s both;
}

.animate-fade-in-delay-2 {
    animation: fadeInUp 1s ease-out 0.6s both;
}

.animate-fade-in-delay-3 {
    animation: fadeInUp 1s ease-out 0.9s both;
}

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

/* Scroll Indicator */
.scroll-indicator {
    position: absolute;
    bottom: 40px;
    left: 50%;
    transform: translateX(-50%);
    z-index: 2;
}

.mouse {
    width: 30px;
    height: 50px;
    border: 2px solid var(--white);
    border-radius: 25px;
    position: relative;
    animation: float 2s ease-in-out infinite;
}

.wheel {
    width: 4px;
    height: 10px;
    background: var(--white);
    border-radius: 2px;
    position: absolute;
    top: 10px;
    left: 50%;
    transform: translateX(-50%);
    animation: scroll 2s ease-in-out infinite;
}

@keyframes float {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(10px); }
}

@keyframes scroll {
    0% { opacity: 1; top: 10px; }
    100% { opacity: 0; top: 30px; }
}

/* ============================================
   SECTION STYLING
   ============================================ */
.parallax-section {
    padding: var(--section-padding);
    position: relative;
}

.section-header {
    text-align: center;
    margin-bottom: 4rem;
}

.section-label {
    display: inline-block;
    color: var(--secondary-color);
    font-weight: 600;
    font-size: 0.9rem;
    text-transform: uppercase;
    letter-spacing: 2px;
    margin-bottom: 1rem;
}

.section-title {
    color: var(--dark-text);
    margin-bottom: 1rem;
}

.section-description {
    color: var(--gray-600);
    font-size: 1.1rem;
    max-width: 700px;
    margin: 0 auto;
}

/* ============================================
   ABOUT SECTION
   ============================================ */
.about-section {
    background: var(--white);
}

.about-content {
    display: grid;
    gap: 3rem;
}

.about-text {
    max-width: 900px;
    margin: 0 auto;
}

.lead-text {
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--primary-color);
    margin-bottom: 1.5rem;
    line-height: 1.7;
}

.mission-box {
    background: linear-gradient(135deg, var(--primary-color), var(--primary-dark));
    color: var(--white);
    padding: 2.5rem;
    border-radius: 15px;
    margin-top: 2rem;
    box-shadow: var(--shadow-xl);
}

.mission-box h3 {
    color: var(--white);
    margin-bottom: 1rem;
}

.about-stats {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 2rem;
    margin-top: 3rem;
}

.stat-card {
    text-align: center;
    padding: 2rem;
    background: var(--gray-50);
    border-radius: 15px;
    transition: var(--transition-normal);
}

.stat-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
    background: var(--white);
}

.stat-number {
    font-size: 3rem;
    font-weight: 800;
    color: var(--secondary-color);
    font-family: var(--font-primary);
    margin-bottom: 0.5rem;
}

.stat-label {
    color: var(--gray-600);
    font-weight: 600;
    font-size: 0.95rem;
}

/* ============================================
   PRODUCTS SECTION
   ============================================ */
.products-section {
    background: var(--gray-50);
}

.products-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2rem;
    margin-bottom: 3rem;
}

.product-card {
    background: var(--white);
    padding: 2.5rem;
    border-radius: 15px;
    text-align: center;
    transition: var(--transition-normal);
    box-shadow: var(--shadow-md);
}

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

.product-icon {
    width: 140px;
    height: 140px;
    background: linear-gradient(135deg, var(--primary-light), var(--primary-color));
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 1.5rem;
    font-size: 2rem;
    color: var(--white);
    overflow: hidden;
    position: relative;
}

.product-icon img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    border-radius: 50%;
}

/* Alternative: Product image (larger, replaces icon) */
.product-image {
    width: 120px;
    height: 120px;
    border-radius: 50%;
    margin: 0 auto 1.5rem;
    overflow: hidden;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.product-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.product-card:hover .product-image {
    transform: scale(1.05);
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.15);
}

.product-card h3 {
    color: var(--dark-text);
    margin-bottom: 1.5rem;
    font-size: 1.4rem;
}

.product-card ul {
    text-align: left;
}

.product-card ul li {
    padding: 0.5rem 0;
    color: var(--gray-600);
    position: relative;
    padding-left: 25px;
}

.product-card ul li::before {
    content: '✓';
    position: absolute;
    left: 0;
    color: var(--secondary-color);
    font-weight: bold;
}

.products-cta {
    text-align: center;
    background: var(--white);
    padding: 3rem;
    border-radius: 15px;
    box-shadow: var(--shadow-lg);
}

.cta-text {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--dark-text);
    margin-bottom: 0.5rem;
}

.cta-subtext {
    font-size: 1.1rem;
    color: var(--gray-600);
    margin-bottom: 2rem;
}

/* ============================================
   SERVICES SECTION
   ============================================ */
.services-section {
    background: var(--white);
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 2rem;
}

.service-card {
    background: var(--gray-50);
    padding: 2.5rem;
    border-radius: 15px;
    position: relative;
    transition: var(--transition-normal);
    border: 2px solid transparent;
}

.service-card:hover {
    border-color: var(--primary-color);
    transform: translateY(-5px);
    box-shadow: var(--shadow-xl);
    background: var(--white);
}

.service-number {
    position: absolute;
    top: 20px;
    right: 20px;
    font-size: 3rem;
    font-weight: 800;
    color: rgba(44, 95, 45, 0.1);
    font-family: var(--font-primary);
}

.service-icon {
    width: 70px;
    height: 70px;
    background: var(--secondary-color);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 1.5rem;
    font-size: 1.8rem;
    color: var(--white);
}

.service-card h3 {
    color: var(--dark-text);
    margin-bottom: 1rem;
    font-size: 1.4rem;
}

.service-card p {
    color: var(--gray-600);
    line-height: 1.7;
}

/* ============================================
   WHY US SECTION
   ============================================ */
.why-us-section {
    background: linear-gradient(135deg, var(--primary-dark) 0%, var(--dark-bg) 100%);
    color: var(--white);
}

.why-us-section .section-label {
    color: var(--secondary-color);
}

.why-us-section .section-title {
    color: var(--white);
}

.positioning-box {
    background: rgba(255, 255, 255, 0.1);
    -webkit-backdrop-filter: blur(10px);
    backdrop-filter: blur(10px);
    padding: 3rem;
    border-radius: 15px;
    margin-bottom: 3rem;
    border: 1px solid rgba(255, 255, 255, 0.2);
}

.positioning-box h3 {
    color: var(--secondary-color);
    margin-bottom: 1.5rem;
    font-size: 1.8rem;
}

.positioning-box p {
    font-size: 1.1rem;
    line-height: 1.8;
    color: var(--gray-200);
}

.benefits-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2rem;
}

.benefit-card {
    background: rgba(255, 255, 255, 0.05);
    padding: 2rem;
    border-radius: 15px;
    transition: var(--transition-normal);
    border: 1px solid rgba(255, 255, 255, 0.1);
}

.benefit-card:hover {
    background: rgba(255, 255, 255, 0.1);
    transform: translateY(-5px);
    border-color: var(--secondary-color);
}

.benefit-card i {
    font-size: 2.5rem;
    color: var(--secondary-color);
    margin-bottom: 1rem;
}

.benefit-card h4 {
    color: var(--white);
    margin-bottom: 0.8rem;
    font-size: 1.2rem;
}

.benefit-card p {
    color: var(--gray-300);
    font-size: 0.95rem;
}

/* ============================================
   CONTACT SECTION
   ============================================ */
.contact-section {
    background: var(--gray-50);
}

.contact-wrapper {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 3rem;
    align-items: start;
}

.contact-info {
    display: grid;
    gap: 1.5rem;
}

.info-card {
    background: var(--white);
    padding: 2rem;
    border-radius: 15px;
    text-align: center;
    box-shadow: var(--shadow-md);
    transition: var(--transition-normal);
}

.info-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
}

.info-card i {
    font-size: 2.5rem;
    color: var(--primary-color);
    margin-bottom: 1rem;
}

.info-card h4 {
    color: var(--dark-text);
    margin-bottom: 0.8rem;
    font-size: 1.2rem;
}

.info-card a {
    color: var(--secondary-color);
    font-weight: 600;
}

.info-card a:hover {
    color: var(--secondary-dark);
}

.info-card p {
    color: var(--gray-600);
    margin: 0;
}

/* Contact Form */
.contact-form {
    background: var(--white);
    padding: 2.5rem;
    border-radius: 15px;
    box-shadow: var(--shadow-lg);
}

.form-group {
    position: relative;
    margin-bottom: 2rem;
}

.form-row {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1.5rem;
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 15px;
    border: 2px solid var(--gray-200);
    border-radius: 10px;
    font-family: var(--font-secondary);
    font-size: 1rem;
    transition: var(--transition-normal);
    background: var(--white);
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(44, 95, 45, 0.1);
}

.form-group label {
    position: absolute;
    top: 15px;
    left: 15px;
    color: var(--gray-500);
    font-size: 1rem;
    pointer-events: none;
    transition: var(--transition-fast);
}

.form-group input:not(:placeholder-shown) + label,
.form-group textarea:not(:placeholder-shown) + label,
.form-group input:focus + label,
.form-group textarea:focus + label {
    top: -10px;
    left: 10px;
    font-size: 0.85rem;
    background: var(--white);
    padding: 0 5px;
    color: var(--primary-color);
    font-weight: 600;
}

.form-message {
    margin-top: 0;
    margin-bottom: 1.5rem;
    padding: 1.25rem 1.5rem;
    border-radius: 12px;
    text-align: center;
    font-weight: 600;
    font-size: 1rem;
    display: none;
    opacity: 1;
    transition: opacity 0.5s ease;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
}

.form-message i {
    margin-right: 0.5rem;
    font-size: 1.25rem;
    vertical-align: middle;
}

.form-message.success {
    background: linear-gradient(135deg, #d1fae5 0%, #a7f3d0 100%);
    color: #065f46;
    border: 2px solid #10b981;
    display: block;
}

.form-message.error {
    background: linear-gradient(135deg, #fee2e2 0%, #fecaca 100%);
    color: #991b1b;
    border: 2px solid #ef4444;
    display: block;
}

/* ============================================
   FOOTER
   ============================================ */
.footer {
    background: var(--dark-bg);
    color: var(--gray-300);
    padding: 4rem 0 2rem;
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 3rem;
    margin-bottom: 3rem;
}

.footer-logo img {
    height: 60px;
    margin-bottom: 1rem;
}

.footer-logo p {
    color: var(--gray-400);
    font-size: 0.95rem;
    line-height: 1.6;
}

.footer-links h4,
.footer-contact h4 {
    color: var(--white);
    margin-bottom: 1.5rem;
    font-size: 1.2rem;
}

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

.footer-links a {
    color: var(--gray-400);
    transition: var(--transition-fast);
}

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

.footer-contact p {
    margin-bottom: 1rem;
    color: var(--gray-400);
    display: flex;
    align-items: center;
    gap: 10px;
}

.footer-contact i {
    color: var(--secondary-color);
    font-size: 1.1rem;
}

.footer-bottom {
    text-align: center;
    padding-top: 2rem;
    border-top: 1px solid var(--gray-700);
    color: var(--gray-500);
    font-size: 0.9rem;
}

.footer-bottom p {
    margin-bottom: 0.5rem;
}

/* ============================================
   FLOATING BUTTONS
   ============================================ */
.whatsapp-float {
    position: fixed;
    bottom: 30px;
    right: 30px;
    width: 60px;
    height: 60px;
    background: #25D366;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2rem;
    color: var(--white);
    box-shadow: 0 4px 12px rgba(37, 211, 102, 0.4);
    z-index: 999;
    transition: var(--transition-normal);
    animation: pulse 2s infinite;
}

.whatsapp-float:hover {
    transform: scale(1.1);
    box-shadow: 0 6px 20px rgba(37, 211, 102, 0.6);
}

@keyframes pulse {
    0%, 100% {
        box-shadow: 0 4px 12px rgba(37, 211, 102, 0.4);
    }
    50% {
        box-shadow: 0 4px 20px rgba(37, 211, 102, 0.7);
    }
}

.back-to-top {
    position: fixed;
    bottom: 100px;
    right: 30px;
    width: 50px;
    height: 50px;
    background: var(--primary-color);
    border: none;
    border-radius: 50%;
    color: var(--white);
    font-size: 1.2rem;
    cursor: pointer;
    box-shadow: var(--shadow-lg);
    opacity: 0;
    visibility: hidden;
    transition: var(--transition-normal);
    z-index: 998;
}

.back-to-top.visible {
    opacity: 1;
    visibility: visible;
}

.back-to-top:hover {
    background: var(--primary-dark);
    transform: translateY(-3px);
}

/* ============================================
   RESPONSIVE DESIGN
   ============================================ */
@media (max-width: 968px) {
    .nav-menu {
        position: fixed;
        top: 80px;
        right: -100%;
        width: 300px;
        height: calc(100vh - 80px);
        background: var(--dark-bg);
        flex-direction: column;
        padding: 2rem;
        transition: var(--transition-normal);
        box-shadow: var(--shadow-xl);
    }
    
    .nav-menu.active {
        right: 0;
    }
    
    .nav-list {
        flex-direction: column;
        gap: 1.5rem;
        width: 100%;
    }
    
    .nav-link {
        font-size: 1.1rem;
    }
    
    .hamburger {
        display: flex;
    }
    
    .hero-buttons {
        flex-direction: column;
        gap: 1rem;
    }
    
    .btn {
        width: 100%;
        max-width: 300px;
    }
}

@media (max-width: 768px) {
    :root {
        --section-padding: 60px 0;
    }
    
    .section-header {
        margin-bottom: 2.5rem;
    }
    
    .products-grid,
    .services-grid,
    .benefits-grid {
        grid-template-columns: 1fr;
    }
    
    .contact-wrapper {
        grid-template-columns: 1fr;
    }
    
    .form-row {
        grid-template-columns: 1fr;
    }
    
    .whatsapp-float {
        width: 55px;
        height: 55px;
        font-size: 1.8rem;
        bottom: 20px;
        right: 20px;
    }
    
    .back-to-top {
        bottom: 85px;
        right: 20px;
    }
    
    /* Slider controls responsive */
    .slider-controls {
        bottom: 60px;
        gap: 1rem;
    }
    
    .slider-btn {
        width: 40px;
        height: 40px;
        font-size: 0.9rem;
    }
    
    .slider-indicator {
        width: 10px;
        height: 10px;
    }
    
    .slider-indicator.active {
        width: 24px;
    }
}

@media (max-width: 480px) {
    .logo img {
        height: 40px;
    }
    
    .hero-section {
        min-height: 600px;
    }
    
    .stat-card,
    .product-card,
    .service-card,
    .benefit-card {
        padding: 1.5rem;
    }
    
    .contact-form {
        padding: 1.5rem;
    }
}

/* ============================================
   PRINT STYLES
   ============================================ */
@media print {
    .whatsapp-float,
    .back-to-top,
    #header,
    .scroll-indicator {
        display: none !important;
    }
}