/* ========================================
   Yolong Power Tools - Professional Website
   Font: Helvetica Neue
   Style: Heavy Duty Industrial
   ======================================== */

:root {
    /* Pantone 357 C - Deep Green Primary */
    --primary-900: #003d2b;
    --primary-800: #005239;
    --primary-700: #006847;
    --primary-600: #007a55;
    --primary-500: #008f63;
    
    /* Pantone 158 C - Orange Accent */
    --accent-600: #cc2a00;
    --accent-500: #ff3f00;
    --accent-400: #ff5c26;
    --accent-300: #ff7a4a;
    --accent-100: #ffd6c4;
    
    /* Neutrals */
    --black: #0a0a0a;
    --charcoal: #1a1a1a;
    --dark-gray: #2d2d2d;
    --surface: #161614;
    --surface-raised: #1f1f1d;
    --border-subtle: rgba(255, 255, 255, 0.06);
    --border-hover: rgba(255, 255, 255, 0.12);
    
    /* Shadows */
    --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.3);
    --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.4);
    --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.5);
    --shadow-glow: 0 4px 20px rgba(255, 63, 0, 0.2);
    
    /* Radius */
    --radius-sm: 4px;
    --radius-md: 8px;
    --radius-lg: 12px;
    
    /* Text Colors - All White Based */
    --text-primary: #ffffff;
    --text-secondary: rgba(255, 255, 255, 0.8);
    --text-muted: rgba(255, 255, 255, 0.6);
    
    /* Typography - Helvetica */
    --font-helvetica: 'Helvetica Neue', Helvetica, Arial, sans-serif;
    --font-weight-light: 300;
    --font-weight-regular: 400;
    --font-weight-medium: 500;
    --font-weight-bold: 700;
    --font-weight-black: 900;
    
    /* Spacing */
    --spacing-xs: 0.25rem;
    --spacing-sm: 0.5rem;
    --spacing-md: 1rem;
    --spacing-lg: 1.5rem;
    --spacing-xl: 2rem;
    --spacing-2xl: 3rem;
    --spacing-3xl: 4rem;
    --spacing-4xl: 6rem;
    
    /* Transitions */
    --transition-fast: 150ms ease;
    --transition-base: 300ms ease;
}

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

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

body {
    font-family: var(--font-helvetica);
    background: var(--black);
    color: var(--text-primary);
    line-height: 1.6;
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* Container */
.container {
    max-width: 1440px;
    margin: 0 auto;
    padding: 0 var(--spacing-xl);
    position: relative;
    z-index: 10;
}

/* ========================================
   Buttons - Flat, Wide Ratio
   ======================================== */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-sm);
    font-family: var(--font-helvetica);
    font-size: 0.85rem;
    font-weight: var(--font-weight-bold);
    text-decoration: none;
    padding: 14px 36px;
    border-radius: var(--radius-sm);
    cursor: pointer;
    transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
    border: 1px solid transparent;
    text-transform: uppercase;
    letter-spacing: 1.2px;
    white-space: nowrap;
    line-height: 1.2;
    position: relative;
    overflow: hidden;
}

.btn svg {
    width: 18px;
    height: 18px;
    flex-shrink: 0;
}

.btn-accent {
    background: linear-gradient(135deg, var(--accent-500), var(--accent-600));
    color: var(--text-primary);
    border-color: transparent;
}

.btn-accent:hover {
    background: linear-gradient(135deg, var(--accent-400), var(--accent-500));
    border-color: transparent;
    transform: translateY(-2px);
    box-shadow: var(--shadow-glow);
}

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

.btn-outline-light:hover {
    background: var(--text-primary);
    color: var(--primary-700);
}

.btn-large {
    padding: 16px 52px;
    font-size: 0.9rem;
}

.btn-full {
    width: 100%;
}

/* ========================================
   Navigation
   ======================================== */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: rgba(10, 10, 10, 0.95);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid rgba(0, 104, 71, 0.4);
}

.nav-container {
    max-width: 1440px;
    margin: 0 auto;
    padding: 0 var(--spacing-xl);
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 80px;
}

.logo img {
    height: 45px;
    width: auto;
    display: block;
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: var(--spacing-xl);
}

.nav-link {
    font-family: var(--font-helvetica);
    font-size: 0.8rem;
    font-weight: var(--font-weight-bold);
    color: var(--text-primary);
    text-decoration: none;
    padding: var(--spacing-sm) 0;
    position: relative;
    transition: color var(--transition-fast);
    text-transform: uppercase;
    letter-spacing: 1.5px;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 3px;
    background: var(--accent-500);
    transition: width var(--transition-base);
}

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

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

.nav-actions {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
}

.search-btn {
    background: transparent;
    border: none;
    color: var(--text-primary);
    cursor: pointer;
    padding: var(--spacing-sm);
    display: flex;
    align-items: center;
    justify-content: center;
}

.search-btn svg {
    width: 22px;
    height: 22px;
}

/* Search Bar */
.search-bar-container {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background: rgba(10, 10, 10, 0.98);
    backdrop-filter: blur(10px);
    border-bottom: 2px solid var(--primary-700);
    padding: 20px;
    z-index: 1001;
    display: none;
    align-items: center;
    gap: 16px;
}

.search-bar-container.active {
    display: flex;
}

.search-bar-container .search-input {
    flex: 1;
    background: rgba(255, 255, 255, 0.05);
    border: 2px solid var(--primary-700);
    color: white;
    font-size: 18px;
    padding: 14px 20px;
    outline: none;
    font-family: 'Helvetica Neue', Arial, sans-serif;
}

.search-bar-container .search-input:focus {
    border-color: var(--accent-500);
}

.search-bar-container .search-input::placeholder {
    color: rgba(255, 255, 255, 0.4);
}

.search-bar-container .btn-close {
    background: transparent;
    border: 2px solid rgba(255, 255, 255, 0.3);
    color: white;
    padding: 12px 20px;
    cursor: pointer;
    font-size: 14px;
    font-weight: 700;
    letter-spacing: 1px;
    transition: all 0.2s ease;
}

.search-bar-container .btn-close:hover {
    background: var(--accent-500);
    border-color: var(--accent-500);
}

.search-results {
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: #0a0a0a;
    border: 2px solid #006847;
    border-top: none;
    max-height: 400px;
    overflow-y: auto;
    display: none;
    z-index: 1002;
}

.search-results.active {
    display: block;
}

.search-result-item {
    display: block;
    padding: 16px 20px;
    color: white;
    text-decoration: none;
    border-bottom: 1px solid rgba(255, 255, 255, 0.08);
    transition: background 0.2s ease;
}

.search-result-item:hover {
    background: #006847;
}

.search-result-item .result-name {
    font-weight: 700;
    margin-bottom: 4px;
}

.search-result-item .result-model {
    font-size: 12px;
    color: rgba(255, 255, 255, 0.5);
    letter-spacing: 1px;
}

.search-no-results {
    padding: 20px;
    color: rgba(255, 255, 255, 0.5);
    text-align: center;
}

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

.mobile-menu-btn span {
    width: 24px;
    height: 3px;
    background: var(--text-primary);
    border-radius: 2px;
}

/* ========================================
   Hero Section
   ======================================== */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    padding: 120px 0 var(--spacing-3xl);
    overflow: hidden;
}

.hero-bg {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 1;
}

.hero-bg img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.hero-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, rgba(0, 104, 71, 0.85) 0%, rgba(0, 61, 43, 0.95) 100%);
    z-index: 2;
}

.hero-content {
    position: relative;
    z-index: 10;
    max-width: 800px;
    padding: 0 var(--spacing-xl);
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-sm);
    font-size: 0.75rem;
    font-weight: var(--font-weight-bold);
    color: var(--text-primary);
    background: rgba(255, 255, 255, 0.1);
    padding: var(--spacing-sm) var(--spacing-lg);
    border: 1px solid rgba(255, 255, 255, 0.2);
    margin-bottom: var(--spacing-lg);
    text-transform: uppercase;
    letter-spacing: 2px;
}

.badge-accent {
    width: 8px;
    height: 8px;
    background: var(--accent-500);
    border-radius: 50%;
}

.hero-title {
    font-family: var(--font-helvetica);
    font-size: 5rem;
    font-weight: var(--font-weight-black);
    color: var(--text-primary);
    line-height: 1.05;
    margin-bottom: var(--spacing-lg);
    text-transform: uppercase;
    letter-spacing: 2px;
}

.hero-title .highlight {
    color: var(--accent-500);
    display: block;
}

.hero-subtitle {
    font-size: 1.15rem;
    font-weight: var(--font-weight-light);
    color: var(--text-secondary);
    margin-bottom: var(--spacing-2xl);
    max-width: 600px;
    line-height: 1.7;
}

.hero-cta {
    display: flex;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-2xl);
}

.hero-features {
    display: flex;
    gap: var(--spacing-xl);
    flex-wrap: wrap;
}

.feature {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    color: var(--text-primary);
    font-size: 0.85rem;
    font-weight: var(--font-weight-bold);
    text-transform: uppercase;
    letter-spacing: 1px;
}

.feature-icon {
    width: 24px;
    height: 24px;
    background: var(--accent-500);
    color: var(--text-primary);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.75rem;
    font-weight: var(--font-weight-black);
}

.hero-scroll {
    position: absolute;
    bottom: 40px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--spacing-sm);
    color: var(--text-muted);
    font-size: 0.75rem;
    font-weight: var(--font-weight-bold);
    text-transform: uppercase;
    letter-spacing: 2px;
    z-index: 10;
}

.scroll-line {
    width: 2px;
    height: 40px;
    background: linear-gradient(180deg, var(--accent-500) 0%, transparent 100%);
    animation: scrollPulse 2s ease-in-out infinite;
}

@keyframes scrollPulse {
    0%, 100% { opacity: 1; transform: scaleY(1); }
    50% { opacity: 0.5; transform: scaleY(0.5); }
}

/* ========================================
   Sections
   ======================================== */
.section {
    position: relative;
    padding: var(--spacing-4xl) 0;
    background: var(--primary-800);
    min-height: 80vh;
}

.section:nth-child(even) {
    background: var(--surface);
}

.section-bg {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 1;
}

.section-bg img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.section-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(
        135deg,
        rgba(0, 82, 57, 0.9) 0%,
        rgba(10, 10, 10, 0.7) 100%
    );
    z-index: 1;
}
}

.section-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 82, 57, 0.92);
    z-index: 2;
}

.section-header {
    text-align: left;
    margin-bottom: var(--spacing-3xl);
    position: relative;
    z-index: 10;
}

.section-title {
    font-family: var(--font-helvetica);
    font-size: 3.5rem;
    font-weight: var(--font-weight-black);
    color: var(--text-primary);
    text-transform: uppercase;
    letter-spacing: 2px;
    margin-bottom: var(--spacing-md);
}

.section-desc {
    font-size: 1.1rem;
    font-weight: var(--font-weight-light);
    color: var(--text-secondary);
    max-width: 600px;
    margin: 0 0 var(--spacing-3xl) 0;
}

.section-cta {
    text-align: center;
    margin-top: var(--spacing-3xl);
    position: relative;
    z-index: 10;
}

/* ========================================
   Products Section
   ======================================== */
.products-section {
    background: var(--primary-800);
}

.products-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: var(--spacing-lg);
    position: relative;
    z-index: 10;
}

.product-card {
    background: var(--surface);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-md);
    overflow: hidden;
    transition: all 0.35s cubic-bezier(0.4, 0, 0.2, 1);
    box-shadow: var(--shadow-sm);
}

.product-card:hover {
    border-color: rgba(255, 63, 0, 0.35);
    box-shadow: var(--shadow-glow), var(--shadow-lg);
    transform: translateY(-6px);
}

.product-image {
    position: relative;
    height: 280px;
    overflow: hidden;
    background: var(--black);
}

.product-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.5s cubic-bezier(0.4, 0, 0.2, 1);
}

.product-card:hover .product-image img {
    transform: scale(1.08);
}

.product-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, rgba(0, 61, 43, 0.92) 0%, rgba(255, 63, 0, 0.85) 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: opacity 0.3s ease;
}

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

.product-info {
    padding: var(--spacing-md) var(--spacing-lg) var(--spacing-lg);
}

.product-name {
    font-family: var(--font-helvetica);
    font-size: 1rem;
    font-weight: var(--font-weight-medium);
    color: var(--text-primary);
    margin-bottom: var(--spacing-xs);
    letter-spacing: 0.5px;
}

.product-desc {
    font-size: 0.85rem;
    font-weight: var(--font-weight-light);
    color: var(--text-muted);
    letter-spacing: 0.3px;
}

/* ========================================
   Products Categories Grid (Overview Page)
   ======================================== */
.products-categories-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: var(--spacing-xl);
    position: relative;
    z-index: 10;
}

.category-card {
    background: var(--surface);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-md);
    overflow: hidden;
    transition: all 0.35s cubic-bezier(0.4, 0, 0.2, 1);
    text-decoration: none;
    display: block;
    box-shadow: var(--shadow-sm);
}

.category-card:hover {
    border-color: rgba(255, 63, 0, 0.35);
    box-shadow: var(--shadow-glow), var(--shadow-lg);
    transform: translateY(-6px);
}

.category-image {
    position: relative;
    height: 220px;
    overflow: hidden;
}

.category-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform var(--transition-slow);
}

.category-card:hover .category-image img {
    transform: scale(1.1);
}

.category-overlay {
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    padding: var(--spacing-md);
    background: linear-gradient(transparent, rgba(0, 0, 0, 0.8));
}

.category-count {
    font-family: var(--font-helvetica);
    font-size: 0.75rem;
    font-weight: var(--font-weight-bold);
    color: var(--accent-500);
    text-transform: uppercase;
    letter-spacing: 1px;
}

.category-info {
    padding: var(--spacing-lg);
}

.category-name {
    font-family: var(--font-helvetica);
    font-size: 1.2rem;
    font-weight: var(--font-weight-bold);
    color: var(--text-primary);
    margin-bottom: var(--spacing-sm);
    text-transform: uppercase;
    letter-spacing: 1px;
}

.category-desc {
    font-size: 0.85rem;
    font-weight: var(--font-weight-light);
    color: var(--text-muted);
    line-height: 1.5;
    margin-bottom: var(--spacing-md);
}

.category-link {
    font-family: var(--font-helvetica);
    font-size: 0.8rem;
    font-weight: var(--font-weight-bold);
    color: var(--accent-500);
    text-transform: uppercase;
    letter-spacing: 1px;
}

/* ========================================
   Solutions Section
   ======================================== */
.solutions-section {
    background: var(--charcoal);
}

.solutions-tabs {
    display: flex;
    justify-content: center;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-2xl);
    flex-wrap: wrap;
    position: relative;
    z-index: 10;
}

.tab-btn {
    font-family: var(--font-helvetica);
    font-size: 0.8rem;
    font-weight: var(--font-weight-bold);
    padding: 14px 36px;
    background: rgba(0, 0, 0, 0.3);
    border: 2px solid rgba(255, 255, 255, 0.2);
    color: var(--text-primary);
    cursor: pointer;
    transition: all var(--transition-fast);
    text-transform: uppercase;
    letter-spacing: 1.5px;
    white-space: nowrap;
}

.tab-btn:hover,
.tab-btn.active {
    background: var(--accent-500);
    border-color: var(--accent-500);
}

.solutions-content {
    position: relative;
    z-index: 10;
}

.solution-panel {
    display: none;
}

.solution-panel.active {
    display: block;
}

.solution-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-3xl);
    align-items: center;
}

.solution-info h3 {
    font-family: var(--font-helvetica);
    font-size: 2.2rem;
    font-weight: var(--font-weight-black);
    color: var(--text-primary);
    margin-bottom: var(--spacing-lg);
    text-transform: uppercase;
    letter-spacing: 1.5px;
}

.solution-info p {
    font-size: 1.05rem;
    font-weight: var(--font-weight-light);
    color: var(--text-secondary);
    margin-bottom: var(--spacing-lg);
    line-height: 1.7;
}

.solution-features {
    list-style: none;
    margin-bottom: var(--spacing-xl);
}

.solution-features li {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    padding: var(--spacing-sm) 0;
    font-size: 0.95rem;
    font-weight: var(--font-weight-regular);
    color: var(--text-primary);
}

.solution-features li::before {
    content: '●';
    color: var(--accent-500);
    font-size: 0.7rem;
}

.solution-image img {
    width: 100%;
    height: 450px;
    object-fit: cover;
    border: 2px solid rgba(255, 255, 255, 0.1);
}

/* ========================================
   Innovation Section
   ======================================== */
.innovation-section {
    background: var(--primary-700);
    min-height: auto;
    padding: var(--spacing-4xl) 0;
}

.innovation-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--spacing-xl);
}

.innovation-card {
    text-align: center;
    padding: var(--spacing-2xl);
}

.innovation-card .section-title {
    text-align: center;
}

.innovation-icon img {
    width: 100%;
    height: 200px;
    object-fit: cover;
    margin-bottom: var(--spacing-lg);
    border: 2px solid rgba(255, 255, 255, 0.1);
}

.innovation-card h3 {
    font-family: var(--font-helvetica);
    font-size: 1.4rem;
    font-weight: var(--font-weight-bold);
    color: var(--text-primary);
    margin-bottom: var(--spacing-md);
    text-transform: uppercase;
    letter-spacing: 1px;
    text-align: center;
}

.innovation-card p {
    font-size: 1rem;
    font-weight: var(--font-weight-light);
    color: var(--text-secondary);
    line-height: 1.7;
    text-align: left;
}

/* ========================================
   Stats Section
   ======================================== */
.stats-section {
    background: var(--primary-700);
    padding: var(--spacing-3xl) 0;
    min-height: auto;
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: var(--spacing-xl);
}

.stat-item {
    text-align: center;
    color: var(--text-primary);
}

.stat-number {
    font-family: var(--font-helvetica);
    font-size: 5rem;
    font-weight: var(--font-weight-black);
    display: inline;
}

.stat-unit {
    font-family: var(--font-helvetica);
    font-size: 5rem;
    font-weight: var(--font-weight-black);
    color: var(--accent-500);
}

.stat-label {
    display: block;
    font-size: 0.85rem;
    font-weight: var(--font-weight-bold);
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 1.5px;
    margin-top: var(--spacing-sm);
}

/* ========================================
   Support Section
   ======================================== */
.support-section {
    background: var(--charcoal);
}

.support-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--spacing-xl);
    position: relative;
    z-index: 10;
}

.support-card {
    background: rgba(0, 0, 0, 0.3);
    border: 2px solid rgba(255, 255, 255, 0.1);
    padding: var(--spacing-2xl);
    text-align: center;
    transition: all var(--transition-base);
}

.support-card:hover {
    border-color: var(--accent-500);
    transform: translateY(-8px);
}

.support-icon {
    font-family: var(--font-helvetica);
    font-size: 3rem;
    font-weight: var(--font-weight-black);
    color: var(--accent-500);
    margin-bottom: var(--spacing-lg);
}

.support-card h3 {
    font-family: var(--font-helvetica);
    font-size: 1.3rem;
    font-weight: var(--font-weight-bold);
    color: var(--text-primary);
    margin-bottom: var(--spacing-md);
    text-transform: uppercase;
    letter-spacing: 1px;
}

.support-card p {
    font-size: 0.95rem;
    font-weight: var(--font-weight-light);
    color: var(--text-secondary);
    margin-bottom: var(--spacing-lg);
    line-height: 1.7;
}

/* ========================================
   Contact Section
   ======================================== */
.contact-section {
    background: var(--charcoal);
}

.contact-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-3xl);
    position: relative;
    z-index: 10;
}

.contact-info .section-title {
    text-align: left;
}

.contact-desc {
    font-size: 1.1rem;
    font-weight: var(--font-weight-light);
    color: var(--text-secondary);
    margin-bottom: var(--spacing-2xl);
}

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

.contact-item {
    display: flex;
    align-items: flex-start;
    gap: var(--spacing-md);
}

.contact-icon {
    width: 50px;
    height: 50px;
    background: rgba(255, 63, 0, 0.2);
    border: 2px solid var(--accent-500);
    border-radius: 2px;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.contact-icon svg {
    width: 24px;
    height: 24px;
    color: var(--accent-500);
}

.contact-item strong {
    display: block;
    font-size: 0.85rem;
    font-weight: var(--font-weight-bold);
    color: var(--text-primary);
    margin-bottom: var(--spacing-xs);
    text-transform: uppercase;
    letter-spacing: 1px;
}

.contact-item span {
    font-size: 0.95rem;
    font-weight: var(--font-weight-light);
    color: var(--text-secondary);
}

.contact-form-wrapper {
    background: rgba(0, 0, 0, 0.4);
    border: 2px solid rgba(255, 255, 255, 0.1);
    padding: var(--spacing-2xl);
}

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

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

.form-group label {
    font-size: 0.75rem;
    font-weight: var(--font-weight-bold);
    color: var(--text-primary);
    text-transform: uppercase;
    letter-spacing: 1.5px;
}

.form-group input,
.form-group textarea {
    font-family: var(--font-helvetica);
    font-size: 1rem;
    padding: var(--spacing-md);
    border: 2px solid rgba(255, 255, 255, 0.2);
    background: rgba(0, 0, 0, 0.3);
    color: var(--text-primary);
    transition: border-color var(--transition-fast);
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--accent-500);
}

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

/* ========================================
   Footer
   ======================================== */
.footer {
    background: var(--black);
    color: var(--text-secondary);
    padding: var(--spacing-3xl) 0 var(--spacing-xl);
    border-top: 2px solid var(--primary-700);
}

.footer-grid {
    display: grid;
    grid-template-columns: 1.5fr 2fr;
    gap: var(--spacing-3xl);
    margin-bottom: var(--spacing-2xl);
}

.footer-brand .logo {
    margin-bottom: var(--spacing-lg);
}

.logo-footer {
    height: 45px;
}

.footer-brand p {
    font-size: 0.95rem;
    font-weight: var(--font-weight-light);
    color: var(--text-muted);
    margin-bottom: var(--spacing-lg);
}

.social-links {
    display: flex;
    gap: var(--spacing-md);
}

.social-link {
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(255, 255, 255, 0.1);
    border: 2px solid rgba(255, 255, 255, 0.2);
    color: var(--text-primary);
    transition: all var(--transition-fast);
}

.social-link svg {
    width: 20px;
    height: 20px;
}

.social-link:hover {
    background: var(--accent-500);
    border-color: var(--accent-500);
}

.footer-links {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--spacing-xl);
}

.footer-column h4 {
    font-family: var(--font-helvetica);
    font-size: 0.9rem;
    font-weight: var(--font-weight-bold);
    color: var(--text-primary);
    margin-bottom: var(--spacing-lg);
    text-transform: uppercase;
    letter-spacing: 1.5px;
}

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

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

.footer-column a {
    font-size: 0.9rem;
    font-weight: var(--font-weight-light);
    color: var(--text-muted);
    text-decoration: none;
    transition: color var(--transition-fast);
}

.footer-column a:hover {
    color: var(--accent-500);
}

.footer-bottom {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-top: var(--spacing-xl);
    border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.footer-bottom p {
    font-size: 0.85rem;
    font-weight: var(--font-weight-light);
    color: var(--text-muted);
}

.footer-legal {
    display: flex;
    gap: var(--spacing-lg);
}

.footer-legal a {
    font-size: 0.85rem;
    font-weight: var(--font-weight-light);
    color: var(--text-muted);
    text-decoration: none;
}

.footer-legal a:hover {
    color: var(--text-primary);
}

/* ========================================
   Responsive Design
   ======================================== */
@media (max-width: 1200px) {
    .products-grid,
    .innovation-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .stats-grid,
    .support-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .solution-grid,
    .contact-grid,
    .footer-grid {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 768px) {
    .nav-menu {
        display: none;
    }
    
    .mobile-menu-btn {
        display: flex;
    }
    
    .hero-title {
        font-size: 3rem;
    }
    
    .hero-cta {
        flex-direction: column;
    }
    
    .section-title {
        font-size: 2.5rem;
    }
    
    .products-grid,
    .innovation-grid,
    .stats-grid,
    .support-grid {
        grid-template-columns: 1fr;
    }
    
    .solutions-tabs {
        flex-direction: column;
    }
    
    .tab-btn {
        width: 100%;
    }
    
    .footer-links {
        grid-template-columns: 1fr;
    }
    
    .footer-bottom {
        flex-direction: column;
        gap: var(--spacing-md);
        text-align: center;
    }
}

/* Mobile Menu */
@media (max-width: 768px) {
    #navMenu.active {
        display: flex !important;
        flex-direction: column;
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        background: var(--black);
        padding: var(--spacing-lg);
        border-top: 2px solid var(--primary-700);
    }
    
    #navMenu.active .nav-link {
        padding: var(--spacing-md) 0;
        border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    }
}

/* Scrollbar */
::-webkit-scrollbar {
    width: 10px;
}

::-webkit-scrollbar-track {
    background: var(--charcoal);
}

::-webkit-scrollbar-thumb {
    background: var(--primary-600);
}

/* ========================================
   Scroll Reveal Animations
   ======================================== */
.reveal {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.6s cubic-bezier(0.4, 0, 0.2, 1),
                transform 0.6s cubic-bezier(0.4, 0, 0.2, 1);
}

.reveal.visible {
    opacity: 1;
    transform: translateY(0);
}

.reveal-delay-1 { transition-delay: 0.1s; }
.reveal-delay-2 { transition-delay: 0.2s; }
.reveal-delay-3 { transition-delay: 0.3s; }
.reveal-delay-4 { transition-delay: 0.4s; }

/* ========================================
   Glass morphism utility
   ======================================== */
.glass {
    background: rgba(255, 255, 255, 0.03);
    backdrop-filter: blur(12px);
    border: 1px solid rgba(255, 255, 255, 0.06);
}

/* ========================================
   Fine details - accent divider
   ======================================== */
.accent-divider {
    width: 60px;
    height: 3px;
    background: linear-gradient(90deg, var(--primary-500), var(--accent-500));
    border-radius: 2px;
    margin: var(--spacing-md) 0 var(--spacing-lg);
}

::-webkit-scrollbar-thumb:hover {
    background: var(--accent-500);
}