/* ===================================
   Green Tech Electrolyte - Main Styles
   Professional Industrial Website
   =================================== */

/* ========== CSS RESET & ROOT VARIABLES ========== */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    /* Primary Green Color Palette */
    --primary-green: #2d7a3e;
    --primary-green-light: #3a9b50;
    --primary-green-dark: #1f5329;
    --primary-green-ultra-light: #e8f5e9;
    
    /* Accent Colors */
    --accent-green: #4caf50;
    --accent-gold: #ffa726;
    
    /* Neutral Colors */
    --white: #ffffff;
    --off-white: #f9fafb;
    --light-gray: #f3f4f6;
    --gray: #6b7280;
    --dark-gray: #374151;
    --darker-gray: #1f2937;
    --black: #111827;
    
    /* Typography */
    --font-primary: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    --font-heading: 'Poppins', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    
    /* Spacing */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 1.5rem;
    --spacing-lg: 2rem;
    --spacing-xl: 3rem;
    --spacing-2xl: 4rem;
    --spacing-3xl: 6rem;
    
    /* 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), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
    --shadow-green: 0 10px 30px -5px rgba(45, 122, 62, 0.3);
    
    /* Border Radius */
    --radius-sm: 0.375rem;
    --radius-md: 0.5rem;
    --radius-lg: 0.75rem;
    --radius-xl: 1rem;
}

/* ========== BASE STYLES ========== */
html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-primary);
    color: var(--dark-gray);
    line-height: 1.6;
    font-size: 16px;
    overflow-x: hidden;
    background-color: var(--white);
}

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

/* ========== TYPOGRAPHY ========== */
h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-heading);
    font-weight: 700;
    line-height: 1.2;
    color: var(--darker-gray);
}

h1 { font-size: 3.5rem; }
h2 { font-size: 2.5rem; }
h3 { font-size: 1.75rem; }
h4 { font-size: 1.25rem; }

p {
    margin-bottom: var(--spacing-md);
    line-height: 1.7;
}

a {
    text-decoration: none;
    color: var(--primary-green);
    transition: color var(--transition-fast);
}

a:hover {
    color: var(--primary-green-dark);
}

/* ========== NAVIGATION ========== */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background: var(--white);
    box-shadow: var(--shadow-md);
    z-index: 1000;
    transition: all var(--transition-normal);
}

.navbar.scrolled {
    box-shadow: var(--shadow-lg);
}

.nav-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--spacing-md) var(--spacing-lg);
}

.logo {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    font-family: var(--font-heading);
}

.logo-image {
    width: 50px;
    height: 50px;
    object-fit: contain;
}

.logo-icon {
    background: linear-gradient(135deg, var(--primary-green) 0%, var(--primary-green-light) 100%);
    color: var(--white);
    width: 50px;
    height: 50px;
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: 1.1rem;
    letter-spacing: 1px;
}

.logo-text {
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--darker-gray);
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: var(--spacing-lg);
    align-items: center;
}

.nav-link {
    color: var(--dark-gray);
    font-weight: 500;
    font-size: 0.95rem;
    padding: var(--spacing-xs) var(--spacing-sm);
    border-radius: var(--radius-sm);
    transition: all var(--transition-fast);
    position: relative;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 0;
    height: 2px;
    background: var(--primary-green);
    transition: width var(--transition-fast);
}

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

.nav-link:hover::after,
.nav-link.active::after {
    width: 80%;
}

.mobile-menu-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: var(--spacing-xs);
}

.mobile-menu-toggle span {
    width: 25px;
    height: 3px;
    background: var(--primary-green);
    border-radius: 2px;
    transition: all var(--transition-fast);
}

/* ========== HERO SECTION ========== */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, #e8f5e9 0%, #c8e6c9 50%, #a5d6a7 100%);
    padding-top: 80px;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-image: 
        radial-gradient(circle at 20% 50%, rgba(45, 122, 62, 0.1) 0%, transparent 50%),
        radial-gradient(circle at 80% 80%, rgba(45, 122, 62, 0.1) 0%, transparent 50%);
    animation: gradientPulse 8s ease-in-out infinite;
    pointer-events: none;
}

@keyframes gradientPulse {
    0%, 100% {
        opacity: 1;
        transform: scale(1);
    }
    50% {
        opacity: 0.7;
        transform: scale(1.05);
    }
}

.hero-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: 
        repeating-linear-gradient(
            90deg,
            transparent,
            transparent 50px,
            rgba(45, 122, 62, 0.12) 50px,
            rgba(45, 122, 62, 0.12) 52px
        ),
        repeating-linear-gradient(
            0deg,
            transparent,
            transparent 50px,
            rgba(45, 122, 62, 0.12) 50px,
            rgba(45, 122, 62, 0.12) 52px
        );
    background-size: 100% 100%;
    animation: gridMove 20s linear infinite;
    pointer-events: none;
}

@keyframes gridMove {
    0% {
        background-position: 0 0, 0 0;
    }
    100% {
        background-position: 50px 50px, 50px 50px;
    }
}

.hero-content {
    position: relative;
    z-index: 2;
    text-align: center;
    max-width: 900px;
}

.hero-title {
    font-size: 4rem;
    font-weight: 700;
    color: var(--primary-green-dark);
    margin-bottom: var(--spacing-md);
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.05);
}

.hero-subtitle {
    font-size: 1.5rem;
    color: var(--dark-gray);
    font-weight: 500;
    margin-bottom: var(--spacing-sm);
}

.hero-description {
    font-size: 1.1rem;
    color: var(--gray);
    margin-bottom: var(--spacing-xl);
}

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

.scroll-indicator {
    position: absolute;
    bottom: 30px;
    left: 50%;
    transform: translateX(-50%);
    z-index: 2;
}

.scroll-arrow {
    width: 30px;
    height: 50px;
    border: 2px solid var(--primary-green);
    border-radius: 20px;
    position: relative;
}

.scroll-arrow::after {
    content: '';
    position: absolute;
    top: 10px;
    left: 50%;
    transform: translateX(-50%);
    width: 6px;
    height: 6px;
    background: var(--primary-green);
    border-radius: 50%;
    animation: scrollDown 2s infinite;
}

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

/* Hide scroll arrow on mobile devices */
@media (max-width: 500px) {
    .scroll-arrow {
        display: none;
    }
}

/* ========== BUTTONS ========== */
.btn {
    display: inline-block;
    padding: 0.875rem 2rem;
    border-radius: var(--radius-md);
    font-weight: 600;
    font-size: 1rem;
    text-align: center;
    cursor: pointer;
    border: 2px solid transparent;
    transition: all var(--transition-normal);
    font-family: var(--font-heading);
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary-green) 0%, var(--primary-green-light) 100%);
    color: var(--white);
    box-shadow: var(--shadow-md);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-green);
    color: var(--white);
}

.btn-secondary {
    background: var(--white);
    color: var(--primary-green);
    border: 2px solid var(--primary-green);
}

.btn-secondary:hover {
    background: var(--primary-green);
    color: var(--white);
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.btn-full {
    width: 100%;
}

/* ========== SECTION STYLES ========== */
section {
    padding: var(--spacing-3xl) 0;
}

.section-header {
    text-align: center;
    margin-bottom: var(--spacing-2xl);
}

.section-label {
    display: inline-block;
    font-size: 0.875rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 1.5px;
    color: var(--primary-green);
    margin-bottom: var(--spacing-sm);
}

.section-title {
    font-size: 2.5rem;
    color: var(--darker-gray);
    margin-bottom: var(--spacing-md);
}

.section-description {
    font-size: 1.125rem;
    color: var(--gray);
    max-width: 700px;
    margin: 0 auto;
}

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

.about-intro {
    font-size: 1.125rem;
    color: var(--dark-gray);
    margin-bottom: var(--spacing-xl);
    line-height: 1.8;
}

.leadership-section {
    margin-bottom: var(--spacing-xl);
}

.leadership-section h3 {
    color: var(--primary-green-dark);
    margin-bottom: var(--spacing-md);
}

.leaders-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--spacing-lg);
    margin-top: var(--spacing-lg);
}

.leader-card {
    background: var(--primary-green-ultra-light);
    padding: var(--spacing-lg);
    border-radius: var(--radius-lg);
    text-align: center;
    transition: all var(--transition-normal);
}

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

.leader-icon {
    width: 70px;
    height: 70px;
    margin: 0 auto var(--spacing-md);
    background: linear-gradient(135deg, var(--primary-green) 0%, var(--primary-green-light) 100%);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--white);
}

.leader-icon svg {
    width: 35px;
    height: 35px;
}

.leader-photo {
    width: 120px;
    height: 120px;
    margin: 0 auto var(--spacing-md);
    border-radius: 50%;
    overflow: hidden;
    border: 4px solid var(--primary-green);
    box-shadow: 0 4px 15px rgba(45, 122, 62, 0.2);
}

.leader-photo img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.leader-card h4 {
    font-size: 1.25rem;
    color: var(--darker-gray);
    margin-bottom: var(--spacing-xs);
}

.leader-role {
    color: var(--gray);
    font-size: 0.95rem;
}

.highlights-section h3 {
    color: var(--primary-green-dark);
    margin-bottom: var(--spacing-md);
}

.highlights-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--spacing-md);
}

.highlight-item {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    padding: var(--spacing-md);
    background: var(--off-white);
    border-radius: var(--radius-md);
    border-left: 4px solid var(--primary-green);
}

.highlight-icon {
    flex-shrink: 0;
    width: 40px;
    height: 40px;
    color: var(--primary-green);
}

.highlight-icon svg {
    width: 100%;
    height: 100%;
}

.highlight-item span {
    font-weight: 500;
    color: var(--dark-gray);
}

/* ========== MISSION & VISION ========== */
.mission-vision {
    position: relative;
    background: linear-gradient(135deg, var(--primary-green-dark) 0%, var(--primary-green) 100%);
    color: var(--white);
    overflow: hidden;
}

.mission-vision::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: 
        radial-gradient(circle at 20% 50%, rgba(58, 155, 80, 0.3) 0%, transparent 50%),
        radial-gradient(circle at 80% 80%, rgba(31, 83, 41, 0.3) 0%, transparent 50%);
    animation: gradientPulse 8s ease-in-out infinite;
    pointer-events: none;
}

.mission-vision .hero-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: 
        repeating-linear-gradient(
            90deg,
            transparent,
            transparent 50px,
            rgba(45, 122, 62, 0.5) 50px,
            rgba(45, 122, 62, 0.5) 52px
        ),
        repeating-linear-gradient(
            0deg,
            transparent,
            transparent 50px,
            rgba(45, 122, 62, 0.5) 50px,
            rgba(45, 122, 62, 0.5) 52px
        );
    background-size: 100% 100%;
    animation: gridMove 20s linear infinite;
    pointer-events: none;
}

.mv-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(400px, 1fr));
    gap: var(--spacing-xl);
    position: relative;
    z-index: 1;
}

.mv-card {
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(10px);
    border-radius: var(--radius-xl);
    padding: var(--spacing-xl);
    border: 1px solid rgba(255, 255, 255, 0.2);
    transition: all var(--transition-normal);
}

.mv-card:hover {
    transform: translateY(-5px);
    background: rgba(255, 255, 255, 0.15);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.2);
}

.mv-icon {
    width: 60px;
    height: 60px;
    margin-bottom: var(--spacing-md);
    color: var(--white);
}

.mv-icon svg {
    width: 100%;
    height: 100%;
}

.mv-card h3 {
    color: var(--white);
    font-size: 2rem;
    margin-bottom: var(--spacing-md);
}

.mv-list {
    list-style: none;
}

.mv-list li {
    padding-left: var(--spacing-lg);
    margin-bottom: var(--spacing-md);
    position: relative;
    line-height: 1.7;
}

.mv-list li::before {
    content: '✓';
    position: absolute;
    left: 0;
    color: var(--accent-gold);
    font-weight: bold;
    font-size: 1.2rem;
}

/* ========== PRODUCTS SECTION ========== */
.products {
    background: var(--off-white);
}

.products-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: var(--spacing-xl);
}

.product-card {
    background: var(--white);
    border-radius: var(--radius-lg);
    padding: var(--spacing-xl);
    box-shadow: var(--shadow-md);
    transition: all var(--transition-normal);
    border: 2px solid transparent;
}

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

.product-icon {
    width: 60px;
    height: 60px;
    margin-bottom: var(--spacing-md);
    color: var(--primary-green);
}

.product-icon svg {
    width: 100%;
    height: 100%;
}

.product-card h3 {
    color: var(--darker-gray);
    margin-bottom: var(--spacing-md);
    font-size: 1.5rem;
}

.product-list {
    list-style: none;
    margin-bottom: var(--spacing-md);
}

.product-list li {
    padding: var(--spacing-xs) 0;
    padding-left: var(--spacing-lg);
    position: relative;
    color: var(--dark-gray);
}

.product-list li::before {
    content: '▸';
    position: absolute;
    left: 0;
    color: var(--primary-green);
    font-weight: bold;
}

.product-description {
    color: var(--gray);
    line-height: 1.7;
    font-size: 0.95rem;
}

.featured-card {
    background: linear-gradient(135deg, var(--primary-green-ultra-light) 0%, var(--white) 100%);
    border: 2px solid var(--primary-green);
}

.product-cta {
    display: inline-block;
    margin-top: var(--spacing-md);
    padding: var(--spacing-sm) var(--spacing-lg);
    background: var(--primary-green);
    color: var(--white);
    border-radius: var(--radius-md);
    font-weight: 600;
    transition: all var(--transition-fast);
}

.product-cta:hover {
    background: var(--primary-green-dark);
    transform: translateX(5px);
    color: var(--white);
}

/* ========== EXPERTISE SECTION ========== */
.expertise {
    background: var(--white);
}

.expertise-intro {
    font-size: 1.125rem;
    text-align: center;
    max-width: 800px;
    margin: 0 auto var(--spacing-2xl);
    color: var(--dark-gray);
}

.expertise-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--spacing-xl);
    margin-bottom: var(--spacing-2xl);
}

.expertise-card {
    text-align: center;
    padding: var(--spacing-xl);
    background: var(--off-white);
    border-radius: var(--radius-lg);
    transition: all var(--transition-normal);
}

.expertise-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
    background: var(--primary-green-ultra-light);
}

.expertise-number {
    font-size: 3.5rem;
    font-weight: 700;
    color: var(--primary-green);
    margin-bottom: var(--spacing-sm);
}

.expertise-icon-large {
    width: 60px;
    height: 60px;
    margin: 0 auto var(--spacing-md);
    color: var(--primary-green);
}

.expertise-icon-large svg {
    width: 100%;
    height: 100%;
}

.expertise-card h4 {
    color: var(--darker-gray);
    margin-bottom: var(--spacing-sm);
}

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

.expertise-features {
    background: var(--primary-green-ultra-light);
    border-radius: var(--radius-xl);
    padding: var(--spacing-2xl);
    margin-top: var(--spacing-2xl);
}

.expertise-features h3 {
    text-align: center;
    color: var(--primary-green-dark);
    margin-bottom: var(--spacing-xl);
}

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

.feature-item {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    padding: var(--spacing-md);
    background: var(--white);
    border-radius: var(--radius-md);
    transition: all var(--transition-fast);
}

.feature-item:hover {
    transform: translateX(5px);
    box-shadow: var(--shadow-md);
}

.feature-item svg {
    width: 24px;
    height: 24px;
    color: var(--primary-green);
    flex-shrink: 0;
}

.feature-item span {
    font-weight: 500;
    color: var(--dark-gray);
}

/* ========== WHY CHOOSE US ========== */
.why-choose {
    background: var(--off-white);
}

.why-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: var(--spacing-xl);
}

.why-card {
    background: var(--white);
    padding: var(--spacing-xl);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
    transition: all var(--transition-normal);
    border-top: 4px solid var(--primary-green);
}

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

.why-icon {
    width: 50px;
    height: 50px;
    margin-bottom: var(--spacing-md);
    color: var(--primary-green);
}

.why-icon svg {
    width: 100%;
    height: 100%;
}

.why-card h3 {
    color: var(--darker-gray);
    margin-bottom: var(--spacing-md);
    font-size: 1.5rem;
}

.why-card p {
    color: var(--gray);
    line-height: 1.7;
    margin: 0;
}

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

.contact-container {
    display: flex;
    justify-content: center;
    margin-top: var(--spacing-2xl);
}

.contact-info {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--spacing-xl);
    max-width: 1000px;
    width: 100%;
}

.contact-card {
    background: var(--primary-green-ultra-light);
    padding: var(--spacing-lg);
    border-radius: var(--radius-lg);
    transition: all var(--transition-fast);
}

.contact-card:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-md);
}

.contact-icon {
    width: 40px;
    height: 40px;
    color: var(--primary-green);
    margin-bottom: var(--spacing-md);
}

.contact-icon svg {
    width: 100%;
    height: 100%;
}

.contact-card h4 {
    color: var(--darker-gray);
    margin-bottom: var(--spacing-sm);
}

.contact-card p {
    color: var(--dark-gray);
    margin: 0;
    line-height: 1.8;
}

.contact-card a {
    color: var(--primary-green-dark);
    font-weight: 500;
}

.contact-form-wrapper {
    background: var(--off-white);
    padding: var(--spacing-xl);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
}

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

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-md);
}

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

.form-group label {
    font-weight: 500;
    color: var(--darker-gray);
    margin-bottom: var(--spacing-xs);
    font-size: 0.95rem;
}

.form-group input,
.form-group select,
.form-group textarea {
    padding: var(--spacing-sm);
    border: 2px solid var(--light-gray);
    border-radius: var(--radius-md);
    font-family: var(--font-primary);
    font-size: 1rem;
    transition: all var(--transition-fast);
    background: var(--white);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary-green);
    box-shadow: 0 0 0 3px rgba(45, 122, 62, 0.1);
}

.form-group textarea {
    resize: vertical;
    min-height: 120px;
}

/* ========== FOOTER ========== */
.footer {
    background: linear-gradient(135deg, var(--darker-gray) 0%, var(--black) 100%);
    color: var(--light-gray);
    padding: var(--spacing-2xl) 0 var(--spacing-lg);
}

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

.footer-brand p {
    margin-top: var(--spacing-md);
    color: var(--gray);
}

.footer-logo {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-md);
}

.footer-logo-image {
    width: 50px;
    height: 50px;
    object-fit: contain;
}

.footer h4 {
    color: var(--white);
    margin-bottom: var(--spacing-md);
    font-size: 1.1rem;
}

.footer ul {
    list-style: none;
}

.footer ul li {
    margin-bottom: var(--spacing-sm);
}

.footer ul li a {
    color: var(--gray);
    transition: color var(--transition-fast);
}

.footer ul li a:hover {
    color: var(--primary-green-light);
}

.footer-contact h4 {
    color: var(--white);
    margin-bottom: var(--spacing-md);
    font-size: 1.1rem;
}

.footer-service-areas {
    grid-column: 1 / -1;
    margin-top: var(--spacing-lg);
    padding-top: var(--spacing-lg);
    border-top: 1px solid var(--dark-gray);
}

.footer-service-areas h4 {
    color: var(--white);
    margin-bottom: var(--spacing-sm);
}

.footer-service-areas p {
    color: var(--gray);
    line-height: 1.7;
    margin: 0;
}

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

/* ========== SCROLL TO TOP BUTTON ========== */
.scroll-to-top {
    position: fixed;
    bottom: 30px;
    right: 30px;
    width: 50px;
    height: 50px;
    background: linear-gradient(135deg, var(--primary-green) 0%, var(--primary-green-light) 100%);
    color: var(--white);
    border: none;
    border-radius: 50%;
    cursor: pointer;
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition-normal);
    box-shadow: var(--shadow-lg);
    z-index: 999;
}

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

.scroll-to-top:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-green);
}

.scroll-to-top svg {
    width: 24px;
    height: 24px;
}

/* ========== RESPONSIVE DESIGN ========== */

/* Tablet */
@media (max-width: 968px) {
    h1 { font-size: 2.5rem; }
    h2 { font-size: 2rem; }
    
    .hero-title { font-size: 3rem; }
    .section-title { font-size: 2rem; }
    
    .contact-info {
        grid-template-columns: 1fr;
    }
    
    .footer-content {
        grid-template-columns: 1fr 1fr;
    }
    
    .mv-grid {
        grid-template-columns: 1fr;
    }
}

/* Mobile */
@media (max-width: 768px) {
    .mobile-menu-toggle {
        display: flex;
    }
    
    .nav-menu {
        position: fixed;
        top: 70px;
        left: -100%;
        width: 100%;
        height: calc(100vh - 70px);
        background: var(--white);
        flex-direction: column;
        padding: var(--spacing-xl);
        transition: left var(--transition-normal);
        box-shadow: var(--shadow-lg);
    }
    
    .nav-menu.active {
        left: 0;
    }
    
    .nav-link {
        width: 100%;
        padding: var(--spacing-md);
        text-align: center;
        border-bottom: 1px solid var(--light-gray);
    }
    
    h1 { font-size: 2rem; }
    h2 { font-size: 1.75rem; }
    
    .hero {
        min-height: 80vh;
        padding: var(--spacing-2xl) 0;
    }
    
    .hero-title { font-size: 2.25rem; }
    .hero-subtitle { font-size: 1.25rem; }
    
    .hero-buttons {
        flex-direction: column;
        width: 100%;
    }
    
    .btn {
        width: 100%;
    }
    
    .products-grid,
    .expertise-grid,
    .why-grid,
    .leaders-grid {
        grid-template-columns: 1fr;
    }
    
    /* Product Catalog Mobile */
    .product-filter {
        padding: var(--spacing-sm);
    }
    
    .filter-btn {
        padding: 10px 16px;
        font-size: 0.85rem;
    }
    
    .filter-btn span {
        display: none;
    }
    
    .products-catalog-grid {
        grid-template-columns: 1fr;
        gap: var(--spacing-lg);
    }
    
    .product-catalog-card {
        padding: var(--spacing-lg);
    }
    
    .product-catalog-actions {
        flex-direction: column;
    }
    
    .btn-product-details,
    .btn-product-quote {
        flex: 1;
        width: 100%;
    }
    
    /* Product Detail Mobile */
    .product-detail-grid {
        grid-template-columns: 1fr;
        gap: var(--spacing-lg);
    }
    
    .product-detail-image {
        position: relative;
        top: 0;
    }
    
    .product-icon-large {
        width: 150px;
        height: 150px;
    }
    
    .product-icon-large svg {
        width: 90px;
        height: 90px;
    }
    
    .product-detail-info h1 {
        font-size: 1.75rem;
    }
    
    .product-meta {
        flex-direction: column;
        gap: var(--spacing-sm);
    }
    
    .product-actions {
        flex-direction: column;
    }
    
    .btn-primary,
    .btn-secondary,
    .btn-outline {
        width: 100%;
    }
    
    .feature-list,
    .application-list,
    .benefit-list {
        grid-template-columns: 1fr;
    }
    
    .related-products-grid {
        grid-template-columns: 1fr;
    }
    
    .cta-content h2 {
        font-size: 1.75rem;
    }
    
    .cta-content p {
        font-size: 1rem;
    }
    }
    
    .form-row {
        grid-template-columns: 1fr;
    }
    
    .footer-content {
        grid-template-columns: 1fr;
    }
    
    .mv-grid {
        grid-template-columns: 1fr;
        gap: var(--spacing-lg);
    }
    
    .container {
        padding: 0 var(--spacing-md);
    }
    
    section {
        padding: var(--spacing-2xl) 0;
    }
}

/* Small Mobile */
@media (max-width: 480px) {
    .hero-title { font-size: 1.875rem; }
    .section-title { font-size: 1.5rem; }
    
    .logo-text {
        display: none;
    }
    
    .logo-image {
        width: 45px;
        height: 45px;
    }
    
    .scroll-to-top {
        width: 45px;
        height: 45px;
        bottom: 20px;
        right: 20px;
    }
}

/* ========== UTILITY CLASSES ========== */
.text-center { text-align: center; }
.mt-1 { margin-top: var(--spacing-sm); }
.mt-2 { margin-top: var(--spacing-md); }
.mt-3 { margin-top: var(--spacing-lg); }
.mb-1 { margin-bottom: var(--spacing-sm); }
.mb-2 { margin-bottom: var(--spacing-md); }
.mb-3 { margin-bottom: var(--spacing-lg); }

/* ========== ANIMATIONS ========== */
@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

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

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

@keyframes scaleIn {
    from {
        opacity: 0;
        transform: scale(0.9);
    }
    to {
        opacity: 1;
        transform: scale(1);
    }
}

[data-aos] {
    animation: slideUp 0.6s ease-out;
}

/* ========== PRODUCT CATALOG STYLES ========== */

.product-filter {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-lg);
    justify-content: center;
    padding: var(--spacing-md);
    background: var(--light-gray);
    border-radius: var(--radius-lg);
}

.filter-btn {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 12px 24px;
    background: var(--white);
    border: 2px solid var(--light-gray);
    border-radius: var(--radius-md);
    color: var(--dark-gray);
    font-size: 0.95rem;
    font-weight: 500;
    cursor: pointer;
    transition: all var(--transition-normal);
    font-family: var(--font-primary);
}

.filter-btn svg {
    width: 20px;
    height: 20px;
    transition: transform var(--transition-normal);
}

.filter-btn:hover {
    background: var(--primary-green-ultra-light);
    border-color: var(--primary-green-light);
    color: var(--primary-green);
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.filter-btn:hover svg {
    transform: scale(1.1);
}

.filter-btn.active {
    background: linear-gradient(135deg, var(--primary-green), var(--primary-green-light));
    border-color: var(--primary-green);
    color: var(--white);
    box-shadow: var(--shadow-green);
}

.filter-btn.active svg {
    transform: scale(1.1);
}

.product-search {
    position: relative;
    max-width: 600px;
    margin: 0 auto var(--spacing-lg);
}

.product-search svg {
    position: absolute;
    left: 20px;
    top: 50%;
    transform: translateY(-50%);
    width: 24px;
    height: 24px;
    color: var(--gray);
    pointer-events: none;
}

.product-search input {
    width: 100%;
    padding: 16px 20px 16px 56px;
    border: 2px solid var(--light-gray);
    border-radius: var(--radius-lg);
    font-size: 1rem;
    font-family: var(--font-primary);
    transition: all var(--transition-normal);
}

.product-search input:focus {
    outline: none;
    border-color: var(--primary-green);
    box-shadow: 0 0 0 4px var(--primary-green-ultra-light);
}

.products-catalog-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(340px, 1fr));
    gap: var(--spacing-xl);
    margin-top: var(--spacing-lg);
}

.product-catalog-card {
    position: relative;
    background: var(--white);
    border-radius: var(--radius-xl);
    padding: var(--spacing-xl);
    border: 2px solid var(--light-gray);
    transition: all var(--transition-normal);
    display: flex;
    flex-direction: column;
    overflow: hidden;
    min-height: 400px;
    opacity: 1;
}

.product-catalog-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 6px;
    background: linear-gradient(90deg, var(--primary-green), var(--primary-green-light));
    transform: scaleX(0);
    transform-origin: left;
    transition: transform var(--transition-normal);
}

.product-catalog-card:hover {
    border-color: var(--primary-green-light);
    box-shadow: var(--shadow-xl);
    transform: translateY(-8px);
}

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

.product-catalog-badge {
    position: absolute;
    top: 20px;
    right: 20px;
    padding: 6px 14px;
    background: linear-gradient(135deg, var(--primary-green), var(--primary-green-light));
    color: var(--white);
    font-size: 0.75rem;
    font-weight: 600;
    border-radius: var(--radius-md);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    box-shadow: var(--shadow-md);
}

.product-catalog-icon {
    width: 80px;
    height: 80px;
    margin: 0 auto var(--spacing-md);
    background: linear-gradient(135deg, var(--primary-green-ultra-light), var(--off-white));
    border-radius: var(--radius-xl);
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all var(--transition-normal);
}

.product-catalog-icon svg {
    width: 48px;
    height: 48px;
    color: var(--primary-green);
    transition: all var(--transition-normal);
}

.product-catalog-card:hover .product-catalog-icon {
    transform: scale(1.1) rotate(5deg);
    background: linear-gradient(135deg, var(--primary-green), var(--primary-green-light));
}

.product-catalog-card:hover .product-catalog-icon svg {
    color: var(--white);
}

.product-catalog-name {
    font-size: 1.35rem;
    font-weight: 700;
    color: var(--darker-gray);
    margin-bottom: var(--spacing-sm);
    text-align: center;
    line-height: 1.3;
}

.product-catalog-unit {
    text-align: center;
    font-size: 0.9rem;
    color: var(--gray);
    margin-bottom: var(--spacing-md);
}

.product-catalog-unit strong {
    color: var(--primary-green);
    font-weight: 600;
}

.product-catalog-description {
    color: var(--dark-gray);
    line-height: 1.6;
    margin-bottom: var(--spacing-md);
    flex-grow: 1;
}

.product-catalog-features {
    background: var(--light-gray);
    padding: var(--spacing-md);
    border-radius: var(--radius-md);
    margin-bottom: var(--spacing-md);
}

.product-catalog-features h4 {
    font-size: 0.9rem;
    color: var(--primary-green);
    margin-bottom: var(--spacing-sm);
    font-weight: 600;
}

.product-catalog-features ul {
    list-style: none;
    padding: 0;
    margin: 0;
}

.product-catalog-features li {
    font-size: 0.85rem;
    color: var(--dark-gray);
    padding: 4px 0;
    padding-left: 20px;
    position: relative;
}

.product-catalog-features li::before {
    content: '✓';
    position: absolute;
    left: 0;
    color: var(--primary-green);
    font-weight: bold;
}

.product-catalog-actions {
    display: flex;
    gap: var(--spacing-sm);
    margin-top: auto;
}

.btn-product-details {
    flex: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 14px 24px;
    background: linear-gradient(135deg, var(--primary-green), var(--primary-green-light));
    color: var(--white);
    text-decoration: none;
    border-radius: var(--radius-md);
    font-weight: 600;
    transition: all var(--transition-normal);
    font-size: 0.95rem;
}

.btn-product-details:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-green);
}

.btn-product-details svg {
    transition: transform var(--transition-normal);
}

.btn-product-details:hover svg {
    transform: translateX(4px);
}

.btn-product-quote {
    flex: 0.8;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 14px 20px;
    background: var(--white);
    color: var(--primary-green);
    text-decoration: none;
    border: 2px solid var(--primary-green);
    border-radius: var(--radius-md);
    font-weight: 600;
    transition: all var(--transition-normal);
    font-size: 0.95rem;
}

.btn-product-quote:hover {
    background: var(--primary-green);
    color: var(--white);
    transform: translateY(-2px);
}

.no-results {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: var(--spacing-3xl) var(--spacing-md);
    text-align: center;
    color: var(--gray);
}

.no-results svg {
    width: 80px;
    height: 80px;
    margin-bottom: var(--spacing-md);
    opacity: 0.3;
}

.no-results h3 {
    color: var(--dark-gray);
    margin-bottom: var(--spacing-sm);
}

/* ========== PRODUCT DETAIL PAGE STYLES ========== */

.breadcrumb {
    background: var(--light-gray);
    padding: var(--spacing-md) 0;
    margin-top: 80px;
}

.breadcrumb ol {
    display: flex;
    flex-wrap: wrap;
    list-style: none;
    padding: 0;
    margin: 0;
    gap: 8px;
    align-items: center;
}

.breadcrumb li {
    font-size: 0.9rem;
    color: var(--gray);
}

.breadcrumb li::after {
    content: '›';
    margin-left: 8px;
    color: var(--gray);
}

.breadcrumb li:last-child::after {
    display: none;
}

.breadcrumb li.active {
    color: var(--primary-green);
    font-weight: 600;
}

.breadcrumb a {
    color: var(--dark-gray);
    text-decoration: none;
    transition: color var(--transition-fast);
}

.breadcrumb a:hover {
    color: var(--primary-green);
}

.product-detail {
    padding: var(--spacing-3xl) 0;
}

.product-detail-grid {
    display: grid;
    grid-template-columns: 1fr 2fr;
    gap: var(--spacing-3xl);
    margin-bottom: var(--spacing-3xl);
}

.product-detail-image {
    position: sticky;
    top: 100px;
    height: fit-content;
}

.product-icon-large {
    width: 200px;
    height: 200px;
    margin: 0 auto var(--spacing-lg);
    background: linear-gradient(135deg, var(--primary-green-ultra-light), var(--off-white));
    border-radius: var(--radius-xl);
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: var(--shadow-lg);
    animation: scaleIn 0.6s ease;
}

.product-icon-large svg {
    width: 120px;
    height: 120px;
    color: var(--primary-green);
}

.product-badge {
    text-align: center;
    padding: 12px 20px;
    background: linear-gradient(135deg, var(--primary-green), var(--primary-green-light));
    color: var(--white);
    font-size: 0.85rem;
    font-weight: 600;
    border-radius: var(--radius-md);
    text-transform: uppercase;
    letter-spacing: 1px;
    box-shadow: var(--shadow-md);
}

.product-detail-info h1 {
    font-size: 2.5rem;
    color: var(--darker-gray);
    margin-bottom: var(--spacing-md);
    line-height: 1.2;
}

.product-meta {
    display: flex;
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-lg);
    padding-bottom: var(--spacing-lg);
    border-bottom: 2px solid var(--light-gray);
}

.product-meta span {
    font-size: 0.95rem;
    color: var(--gray);
}

.product-meta strong {
    color: var(--primary-green);
    font-weight: 600;
}

.product-description-main {
    font-size: 1.1rem;
    line-height: 1.8;
    color: var(--dark-gray);
    margin-bottom: var(--spacing-xl);
    padding: var(--spacing-lg);
    background: var(--light-gray);
    border-left: 4px solid var(--primary-green);
    border-radius: var(--radius-md);
}

.product-section {
    margin-bottom: var(--spacing-xl);
    padding: var(--spacing-lg);
    background: var(--white);
    border-radius: var(--radius-lg);
    border: 2px solid var(--light-gray);
    transition: all var(--transition-normal);
}

.product-section:hover {
    border-color: var(--primary-green-light);
    box-shadow: var(--shadow-md);
}

.product-section h3 {
    display: flex;
    align-items: center;
    gap: 12px;
    font-size: 1.4rem;
    color: var(--primary-green);
    margin-bottom: var(--spacing-md);
}

.product-section h3 svg {
    width: 24px;
    height: 24px;
}

.feature-list,
.application-list,
.benefit-list {
    list-style: none;
    padding: 0;
    margin: 0;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--spacing-md);
}

.feature-list li,
.application-list li,
.benefit-list li {
    display: flex;
    align-items: flex-start;
    gap: 12px;
    padding: 12px;
    background: var(--light-gray);
    border-radius: var(--radius-md);
    font-size: 0.95rem;
    color: var(--dark-gray);
    transition: all var(--transition-fast);
}

.feature-list li:hover,
.application-list li:hover,
.benefit-list li:hover {
    background: var(--primary-green-ultra-light);
    transform: translateX(4px);
}

.feature-list li svg,
.application-list li svg,
.benefit-list li svg {
    flex-shrink: 0;
    width: 20px;
    height: 20px;
    color: var(--primary-green);
}

.specifications-text {
    padding: var(--spacing-md);
    background: var(--light-gray);
    border-radius: var(--radius-md);
    font-size: 0.95rem;
    color: var(--dark-gray);
    line-height: 1.6;
}

.product-actions {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-md);
    margin-top: var(--spacing-2xl);
    padding-top: var(--spacing-2xl);
    border-top: 2px solid var(--light-gray);
}

.btn-primary,
.btn-secondary,
.btn-outline,
.btn-primary-large {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    padding: 16px 32px;
    border-radius: var(--radius-md);
    font-weight: 600;
    font-size: 1rem;
    text-decoration: none;
    transition: all var(--transition-normal);
    cursor: pointer;
    border: none;
    font-family: var(--font-primary);
}

.btn-primary,
.btn-primary-large {
    background: linear-gradient(135deg, var(--primary-green), var(--primary-green-light));
    color: var(--white);
    box-shadow: var(--shadow-md);
}

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

.btn-secondary {
    background: var(--accent-gold);
    color: var(--white);
    box-shadow: var(--shadow-md);
}

.btn-secondary:hover {
    transform: translateY(-3px);
    box-shadow: 0 10px 30px -5px rgba(255, 167, 38, 0.4);
}

.btn-outline {
    background: var(--white);
    color: var(--primary-green);
    border: 2px solid var(--primary-green);
}

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

.btn-primary-large {
    font-size: 1.1rem;
    padding: 18px 40px;
}

/* Related Products Section */
.related-products {
    margin-top: var(--spacing-3xl);
    padding-top: var(--spacing-3xl);
    border-top: 3px solid var(--light-gray);
}

.related-products h2 {
    font-size: 2rem;
    color: var(--darker-gray);
    margin-bottom: var(--spacing-xl);
    text-align: center;
}

.related-products h2 span {
    color: var(--primary-green);
}

.related-products-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--spacing-lg);
}

.related-product-card {
    display: flex;
    flex-direction: column;
    padding: var(--spacing-lg);
    background: var(--white);
    border: 2px solid var(--light-gray);
    border-radius: var(--radius-lg);
    text-decoration: none;
    transition: all var(--transition-normal);
}

.related-product-card:hover {
    border-color: var(--primary-green);
    box-shadow: var(--shadow-lg);
    transform: translateY(-5px);
}

.related-product-icon {
    width: 60px;
    height: 60px;
    margin: 0 auto var(--spacing-md);
    background: var(--primary-green-ultra-light);
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
}

.related-product-icon svg {
    width: 36px;
    height: 36px;
    color: var(--primary-green);
}

.related-product-card h4 {
    font-size: 1.1rem;
    color: var(--darker-gray);
    margin-bottom: var(--spacing-sm);
    text-align: center;
}

.related-product-unit {
    text-align: center;
    font-size: 0.85rem;
    color: var(--gray);
    margin-bottom: var(--spacing-sm);
}

.related-product-desc {
    font-size: 0.9rem;
    color: var(--dark-gray);
    line-height: 1.5;
    margin-bottom: var(--spacing-md);
    flex-grow: 1;
}

.related-product-link {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    color: var(--primary-green);
    font-weight: 600;
    font-size: 0.95rem;
}

.related-product-link svg {
    transition: transform var(--transition-fast);
}

.related-product-card:hover .related-product-link svg {
    transform: translateX(4px);
}

/* CTA Section */
.cta-section {
    background: linear-gradient(135deg, var(--primary-green), var(--primary-green-light));
    padding: var(--spacing-3xl) 0;
    text-align: center;
    color: var(--white);
}

.cta-content h2 {
    font-size: 2.25rem;
    color: var(--white);
    margin-bottom: var(--spacing-md);
}

.cta-content p {
    font-size: 1.15rem;
    margin-bottom: var(--spacing-xl);
    opacity: 0.95;
}

/* ========== PRINT STYLES ========== */
@media print {
    .navbar,
    .scroll-to-top,
    .hero-buttons,
    .contact-form {
        display: none;
    }
    
    body {
        font-size: 12pt;
    }
}