/* ============================================
   LGN Maintenance - Premium Corporate Website
   Industrial HVAC & Cooling Tower Maintenance
   Kuala Lumpur, Malaysia
   
   Design: Dark Cinematic Hero + White Content
   ============================================ */

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

:root {
    /* Color Palette - Dark Premium + Eco Green */
    --color-dark: #0a0a0a;
    --color-dark-900: #111111;
    --color-dark-800: #1a1a1a;
    --color-dark-700: #222222;
    --color-dark-600: #333333;
    
    --color-eco: #4CAF50;
    --color-eco-light: #66BB6A;
    --color-eco-dark: #388E3C;
    --color-eco-glow: rgba(76, 175, 80, 0.15);
    
    --color-white: #FFFFFF;
    --color-gray-50: #FAFAFA;
    --color-gray-100: #F5F5F5;
    --color-gray-200: #EEEEEE;
    --color-gray-300: #E0E0E0;
    --color-gray-400: #BDBDBD;
    --color-gray-500: #9E9E9E;
    --color-gray-600: #757575;
    --color-gray-700: #616161;
    --color-gray-800: #424242;
    --color-gray-900: #212121;
    
    /* Typography */
    --font-primary: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    --font-size-xs: 0.75rem;
    --font-size-sm: 0.875rem;
    --font-size-base: 1rem;
    --font-size-lg: 1.125rem;
    --font-size-xl: 1.25rem;
    --font-size-2xl: 1.5rem;
    --font-size-3xl: 1.875rem;
    --font-size-4xl: 2.25rem;
    --font-size-5xl: 3rem;
    --font-size-6xl: 3.75rem;
    
    --font-weight-normal: 400;
    --font-weight-medium: 500;
    --font-weight-semibold: 600;
    --font-weight-bold: 700;
    
    --line-height-tight: 1.2;
    --line-height-normal: 1.5;
    --line-height-relaxed: 1.7;
    
    /* Spacing */
    --space-1: 0.25rem;
    --space-2: 0.5rem;
    --space-3: 0.75rem;
    --space-4: 1rem;
    --space-5: 1.25rem;
    --space-6: 1.5rem;
    --space-8: 2rem;
    --space-10: 2.5rem;
    --space-12: 3rem;
    --space-16: 4rem;
    --space-20: 5rem;
    --space-24: 6rem;
    
    /* Layout */
    --container-max: 1280px;
    --container-narrow: 900px;
    --header-height: 90px;
    --header-height-mobile: 75px;
    
    /* Shadows */
    --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.1);
    --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 25px rgba(0, 0, 0, 0.15);
    --shadow-xl: 0 20px 40px rgba(0, 0, 0, 0.2);
    
    /* Transitions */
    --transition-fast: 200ms ease;
    --transition-base: 300ms ease;
    --transition-slow: 500ms ease;
}

/* Base Styles */
html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-primary);
    font-size: var(--font-size-base);
    line-height: var(--line-height-normal);
    color: var(--color-gray-800);
    background-color: var(--color-white);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    overflow-x: hidden;
}

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

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

/* Scroll Progress Line */
.scroll-progress {
    position: fixed;
    top: 0;
    left: 0;
    height: 3px;
    background: linear-gradient(90deg, var(--color-eco), var(--color-eco-light));
    z-index: 9999;
    width: 0%;
    transition: width 0.1s linear;
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
    font-weight: var(--font-weight-semibold);
    line-height: var(--line-height-tight);
    color: var(--color-gray-900);
}

h1 { font-size: var(--font-size-5xl); }
h2 { font-size: var(--font-size-4xl); }
h3 { font-size: var(--font-size-3xl); }
h4 { font-size: var(--font-size-2xl); }
h5 { font-size: var(--font-size-xl); }
h6 { font-size: var(--font-size-lg); }

p {
    margin-bottom: var(--space-4);
    color: var(--color-gray-600);
    line-height: var(--line-height-relaxed);
}

p:last-child {
    margin-bottom: 0;
}

/* Container */
.container {
    width: 100%;
    max-width: var(--container-max);
    margin: 0 auto;
    padding: 0 var(--space-6);
}

.container-narrow {
    max-width: var(--container-narrow);
}

/* Header */
.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background: rgba(10, 10, 10, 0.95);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    z-index: 1000;
    height: var(--header-height);
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
}

.header-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 100%;
}

.logo {
    display: flex;
    align-items: center;
    padding: var(--space-3) 0;
}

.logo img {
    height: 65px;
    width: auto;
    filter: brightness(1.1);
}

/* Navigation */
.nav {
    display: flex;
    align-items: center;
    gap: var(--space-8);
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: var(--space-8);
}

.nav-link {
    font-size: var(--font-size-sm);
    font-weight: var(--font-weight-medium);
    color: var(--color-gray-400);
    padding: var(--space-2) 0;
    position: relative;
    transition: color var(--transition-fast);
}

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

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

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

/* CTA Button in Header */
.header-cta {
    display: inline-flex;
    align-items: center;
    gap: var(--space-2);
    background: var(--color-eco);
    color: var(--color-white);
    padding: var(--space-3) var(--space-5);
    border-radius: 4px;
    font-size: var(--font-size-sm);
    font-weight: var(--font-weight-semibold);
    transition: all var(--transition-fast);
}

.header-cta:hover {
    background: var(--color-eco-light);
    transform: translateY(-1px);
}

.header-cta svg {
    width: 16px;
    height: 16px;
}

/* Social Icons Header */
.header-social {
    display: flex;
    align-items: center;
    gap: var(--space-3);
    margin-left: var(--space-4);
    padding-left: var(--space-4);
    border-left: 1px solid rgba(255, 255, 255, 0.1);
}

.social-icon {
    width: 32px;
    height: 32px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--color-gray-400);
    border-radius: 4px;
    transition: all var(--transition-fast);
}

.social-icon:hover {
    color: var(--color-white);
    background: rgba(255, 255, 255, 0.1);
}

.social-icon svg {
    width: 18px;
    height: 18px;
}

/* Mobile Menu Toggle */
.mobile-menu-toggle {
    display: none;
    background: none;
    border: none;
    cursor: pointer;
    padding: var(--space-2);
}

.mobile-menu-toggle span {
    display: block;
    width: 24px;
    height: 2px;
    background-color: var(--color-white);
    margin: 5px 0;
    transition: var(--transition-fast);
}

/* Main Content */
.main {
    min-height: 100vh;
}

/* Dark Hero Section */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    background: var(--color-dark);
    overflow: hidden;
    padding-top: var(--header-height);
}

.hero-bg {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-image: url('../assets/images/hero/hero-1.jpg');
    background-size: cover;
    background-position: center;
    background-attachment: fixed;
    opacity: 0.4;
}

.hero-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(
        180deg,
        rgba(10, 10, 10, 0.7) 0%,
        rgba(10, 10, 10, 0.85) 50%,
        rgba(10, 10, 10, 0.95) 100%
    );
}

/* Technical Grid Overlay */
.hero-grid {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-image: 
        linear-gradient(rgba(76, 175, 80, 0.03) 1px, transparent 1px),
        linear-gradient(90deg, rgba(76, 175, 80, 0.03) 1px, transparent 1px);
    background-size: 50px 50px;
    pointer-events: none;
}

.hero-content {
    position: relative;
    z-index: 2;
    max-width: 900px;
    padding: var(--space-16) 0;
}

.hero-subtitle {
    font-size: var(--font-size-sm);
    font-weight: var(--font-weight-semibold);
    color: var(--color-eco);
    text-transform: uppercase;
    letter-spacing: 0.15em;
    margin-bottom: var(--space-4);
}

.hero-title {
    font-size: var(--font-size-6xl);
    font-weight: var(--font-weight-bold);
    color: var(--color-white);
    margin-bottom: var(--space-6);
    line-height: var(--line-height-tight);
}

.hero-description {
    font-size: var(--font-size-xl);
    color: var(--color-gray-400);
    margin-bottom: var(--space-8);
    line-height: var(--line-height-relaxed);
    max-width: 700px;
}

.hero-buttons {
    display: flex;
    gap: var(--space-4);
    flex-wrap: wrap;
    margin-bottom: var(--space-12);
}

.hero-trust {
    display: flex;
    align-items: center;
    gap: var(--space-3);
    padding-top: var(--space-8);
    border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.hero-trust svg {
    width: 20px;
    height: 20px;
    color: var(--color-eco);
    flex-shrink: 0;
}

.hero-trust p {
    font-size: var(--font-size-sm);
    color: var(--color-gray-500);
    margin-bottom: 0;
}

/* Page Hero (smaller) */
.page-hero {
    position: relative;
    min-height: 50vh;
    display: flex;
    align-items: center;
    background: var(--color-dark);
    overflow: hidden;
    padding-top: var(--header-height);
}

.page-hero .hero-bg {
    opacity: 0.3;
}

.page-hero .hero-content {
    text-align: center;
    max-width: 800px;
    margin: 0 auto;
    padding: var(--space-12) 0;
}

.page-hero .hero-title {
    font-size: var(--font-size-5xl);
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-2);
    padding: var(--space-4) var(--space-8);
    font-size: var(--font-size-base);
    font-weight: var(--font-weight-semibold);
    border-radius: 4px;
    border: none;
    cursor: pointer;
    transition: all var(--transition-fast);
}

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

.btn-primary:hover {
    background: var(--color-eco-light);
    transform: translateY(-2px);
    box-shadow: 0 4px 15px rgba(76, 175, 80, 0.3);
}

.btn-secondary {
    background: transparent;
    color: var(--color-white);
    border: 2px solid rgba(255, 255, 255, 0.3);
}

.btn-secondary:hover {
    border-color: var(--color-white);
    background: rgba(255, 255, 255, 0.1);
}

.btn-outline {
    background: transparent;
    color: var(--color-eco);
    border: 2px solid var(--color-eco);
}

.btn-outline:hover {
    background: var(--color-eco);
    color: var(--color-white);
}

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

.btn-white:hover {
    background: var(--color-gray-100);
    transform: translateY(-2px);
}

.btn-sm {
    padding: var(--space-2) var(--space-4);
    font-size: var(--font-size-sm);
}

/* Section Styles */
.section {
    padding: var(--space-24) 0;
}

.section-header {
    text-align: center;
    max-width: 700px;
    margin: 0 auto var(--space-16);
}

.section-title {
    font-size: var(--font-size-4xl);
    font-weight: var(--font-weight-bold);
    color: var(--color-gray-900);
    margin-bottom: var(--space-4);
}

.section-subtitle {
    font-size: var(--font-size-lg);
    color: var(--color-gray-500);
}

.section-alt {
    background-color: var(--color-gray-50);
}

/* Reveal Animation Classes */
.reveal {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.6s ease, transform 0.6s ease;
}

.reveal.active {
    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; }

/* Services Grid */
.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--space-6);
}

.service-card {
    background: var(--color-white);
    border: 1px solid var(--color-gray-200);
    border-radius: 8px;
    padding: var(--space-8);
    transition: all var(--transition-base);
}

.service-card:hover {
    border-color: var(--color-eco);
    box-shadow: var(--shadow-lg);
    transform: translateY(-4px);
}

.service-icon {
    width: 60px;
    height: 60px;
    background: var(--color-eco-glow);
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: var(--space-5);
}

.service-icon svg {
    width: 28px;
    height: 28px;
    color: var(--color-eco);
}

.service-title {
    font-size: var(--font-size-xl);
    font-weight: var(--font-weight-semibold);
    color: var(--color-gray-900);
    margin-bottom: var(--space-3);
}

.service-description {
    font-size: var(--font-size-sm);
    color: var(--color-gray-600);
    line-height: var(--line-height-relaxed);
}

/* Projects Strip */
.projects-strip {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-4);
}

.project-strip-item {
    position: relative;
    border-radius: 8px;
    overflow: hidden;
    aspect-ratio: 16 / 10;
}

.project-strip-item img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform var(--transition-base);
}

.project-strip-item:hover img {
    transform: scale(1.05);
}

/* Why Choose Us */
.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: var(--space-8);
}

.feature-item {
    display: flex;
    gap: var(--space-4);
}

.feature-icon {
    flex-shrink: 0;
    width: 50px;
    height: 50px;
    background: var(--color-eco-glow);
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.feature-icon svg {
    width: 24px;
    height: 24px;
    color: var(--color-eco);
}

.feature-content h4 {
    font-size: var(--font-size-lg);
    font-weight: var(--font-weight-semibold);
    color: var(--color-gray-900);
    margin-bottom: var(--space-2);
}

.feature-content p {
    font-size: var(--font-size-sm);
    color: var(--color-gray-600);
}

/* Download Section */
.download-section {
    background: linear-gradient(135deg, var(--color-dark-900) 0%, var(--color-dark-800) 100%);
    padding: var(--space-16) 0;
    position: relative;
    overflow: hidden;
}

.download-section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: var(--color-eco-glow);
    opacity: 0.3;
}

.download-content {
    position: relative;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--space-8);
    flex-wrap: wrap;
}

.download-text h3 {
    color: var(--color-white);
    font-size: var(--font-size-2xl);
    margin-bottom: var(--space-2);
}

.download-text p {
    color: var(--color-gray-400);
    font-size: var(--font-size-sm);
    margin-bottom: 0;
}

.download-note {
    text-align: center;
    color: var(--color-gray-500);
    font-size: var(--font-size-xs);
    margin-top: var(--space-4);
}

/* About Page */
.about-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-16);
    align-items: center;
}

.about-text h2 {
    font-size: var(--font-size-3xl);
    margin-bottom: var(--space-6);
}

.about-text p {
    margin-bottom: var(--space-5);
}

.about-image {
    border-radius: 8px;
    overflow: hidden;
    box-shadow: var(--shadow-xl);
}

.about-image img {
    width: 100%;
    height: auto;
}

/* Stats */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: var(--space-6);
    margin-top: var(--space-16);
}

.stat-item {
    text-align: center;
    padding: var(--space-6);
    background: var(--color-white);
    border-radius: 8px;
    border: 1px solid var(--color-gray-200);
}

.stat-number {
    font-size: var(--font-size-4xl);
    font-weight: var(--font-weight-bold);
    color: var(--color-eco);
    margin-bottom: var(--space-2);
}

.stat-label {
    font-size: var(--font-size-sm);
    color: var(--color-gray-500);
}

/* Services Page */
.service-detail {
    margin-bottom: var(--space-16);
}

.service-detail:last-child {
    margin-bottom: 0;
}

.service-detail-header {
    display: flex;
    align-items: center;
    gap: var(--space-4);
    margin-bottom: var(--space-6);
    padding-bottom: var(--space-4);
    border-bottom: 2px solid var(--color-eco-glow);
}

.service-detail-icon {
    width: 64px;
    height: 64px;
    background: var(--color-eco-glow);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.service-detail-icon svg {
    width: 32px;
    height: 32px;
    color: var(--color-eco);
}

.service-detail-title {
    font-size: var(--font-size-2xl);
    font-weight: var(--font-weight-bold);
    color: var(--color-gray-900);
}

.service-detail-content {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: var(--space-8);
}

.service-detail-text p {
    margin-bottom: var(--space-4);
}

.service-features {
    list-style: none;
}

.service-features li {
    display: flex;
    align-items: flex-start;
    gap: var(--space-3);
    margin-bottom: var(--space-3);
    font-size: var(--font-size-sm);
    color: var(--color-gray-600);
}

.service-features li::before {
    content: '';
    flex-shrink: 0;
    width: 20px;
    height: 20px;
    background: var(--color-eco-glow);
    border-radius: 50%;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' fill='none' viewBox='0 0 24 24' stroke='%234CAF50' stroke-width='2'%3E%3Cpath stroke-linecap='round' stroke-linejoin='round' d='M5 13l4 4L19 7'/%3E%3C/svg%3E");
    background-size: 12px;
    background-position: center;
    background-repeat: no-repeat;
}

.service-applicable {
    background: var(--color-eco-glow);
    padding: var(--space-6);
    border-radius: 8px;
}

.service-applicable h4 {
    font-size: var(--font-size-sm);
    font-weight: var(--font-weight-semibold);
    color: var(--color-eco);
    margin-bottom: var(--space-3);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.service-applicable p {
    font-size: var(--font-size-sm);
    color: var(--color-gray-600);
    margin-bottom: 0;
}

/* Industries Tags */
.industries-tags {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-3);
    margin-top: var(--space-4);
}

.industry-tag {
    display: inline-flex;
    align-items: center;
    gap: var(--space-2);
    padding: var(--space-2) var(--space-4);
    background: var(--color-white);
    border: 1px solid var(--color-gray-200);
    border-radius: 20px;
    font-size: var(--font-size-sm);
    color: var(--color-gray-700);
    transition: all var(--transition-fast);
}

.industry-tag:hover {
    border-color: var(--color-eco);
    color: var(--color-eco);
}

.industry-tag svg {
    width: 16px;
    height: 16px;
}

/* Projects Page */
.projects-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: var(--space-6);
}

.project-card {
    background: var(--color-white);
    border-radius: 8px;
    overflow: hidden;
    border: 1px solid var(--color-gray-200);
    transition: all var(--transition-base);
}

.project-card:hover {
    box-shadow: var(--shadow-lg);
    border-color: var(--color-eco);
}

.project-image {
    position: relative;
    aspect-ratio: 4 / 3;
    overflow: hidden;
}

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

.project-card:hover .project-image img {
    transform: scale(1.05);
}

.project-content {
    padding: var(--space-6);
}

.project-title {
    font-size: var(--font-size-lg);
    font-weight: var(--font-weight-semibold);
    color: var(--color-gray-900);
    margin-bottom: var(--space-2);
}

.project-description {
    font-size: var(--font-size-sm);
    color: var(--color-gray-600);
}

.projects-note {
    text-align: center;
    margin-top: var(--space-12);
    padding: var(--space-6);
    background: var(--color-gray-50);
    border-radius: 8px;
}

.projects-note p {
    font-size: var(--font-size-sm);
    color: var(--color-gray-500);
    margin-bottom: 0;
}

/* Contact Page */
.contact-grid {
    display: grid;
    grid-template-columns: 1fr 1.5fr;
    gap: var(--space-16);
}

.contact-info h2 {
    font-size: var(--font-size-2xl);
    margin-bottom: var(--space-6);
}

.contact-details {
    margin-bottom: var(--space-8);
}

.contact-item {
    display: flex;
    gap: var(--space-4);
    margin-bottom: var(--space-5);
}

.contact-icon {
    flex-shrink: 0;
    width: 50px;
    height: 50px;
    background: var(--color-eco-glow);
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
}

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

.contact-content h4 {
    font-size: var(--font-size-sm);
    font-weight: var(--font-weight-semibold);
    color: var(--color-gray-700);
    margin-bottom: var(--space-1);
}

.contact-content p,
.contact-content a {
    font-size: var(--font-size-base);
    color: var(--color-gray-800);
}

.contact-content a:hover {
    color: var(--color-eco);
}

.contact-form-wrapper {
    background: var(--color-gray-50);
    padding: var(--space-8);
    border-radius: 8px;
}

.contact-form-title {
    font-size: var(--font-size-xl);
    font-weight: var(--font-weight-semibold);
    color: var(--color-gray-900);
    margin-bottom: var(--space-6);
}

/* Form Styles */
.form-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--space-5);
}

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

.form-group.full-width {
    grid-column: 1 / -1;
}

.form-label {
    font-size: var(--font-size-sm);
    font-weight: var(--font-weight-medium);
    color: var(--color-gray-700);
    margin-bottom: var(--space-2);
}

.form-input,
.form-textarea {
    padding: var(--space-3) var(--space-4);
    border: 1px solid var(--color-gray-300);
    border-radius: 4px;
    font-size: var(--font-size-base);
    font-family: inherit;
    background: var(--color-white);
    transition: border-color var(--transition-fast);
}

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

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

/* Map Container */
.map-container {
    margin-top: var(--space-12);
    border-radius: 8px;
    overflow: hidden;
    box-shadow: var(--shadow-lg);
}

.map-container iframe {
    width: 100%;
    height: 400px;
    border: none;
}

/* Social Section */
.social-section {
    text-align: center;
    padding: var(--space-12) 0;
}

.social-section h3 {
    font-size: var(--font-size-xl);
    margin-bottom: var(--space-6);
}

.social-links {
    display: flex;
    justify-content: center;
    gap: var(--space-4);
}

.social-link {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    padding: var(--space-3) var(--space-6);
    background: var(--color-white);
    border: 1px solid var(--color-gray-200);
    border-radius: 8px;
    font-size: var(--font-size-sm);
    font-weight: var(--font-weight-medium);
    color: var(--color-gray-700);
    transition: all var(--transition-fast);
}

.social-link:hover {
    border-color: var(--color-eco);
    color: var(--color-eco);
    transform: translateY(-2px);
}

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

/* Footer */
.footer {
    background: var(--color-dark-900);
    color: var(--color-gray-400);
    padding: var(--space-16) 0 var(--space-8);
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1.5fr;
    gap: var(--space-12);
    margin-bottom: var(--space-12);
}

.footer-brand {
    max-width: 320px;
}

.footer-logo {
    height: 50px;
    width: auto;
    margin-bottom: var(--space-4);
    filter: brightness(1.2);
}

.footer-brand p {
    font-size: var(--font-size-sm);
    color: var(--color-gray-500);
    line-height: var(--line-height-relaxed);
}

.hero-logo{
position:absolute;
left:-480px;
top:20px;
width:420px;
opacity:0.95;
z-index:2;
}

.footer-title {
    font-size: var(--font-size-sm);
    font-weight: var(--font-weight-semibold);
    color: var(--color-white);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: var(--space-4);
}

.footer-links {
    list-style: none;
}

.footer-links li {
    margin-bottom: var(--space-2);
}

.footer-links a {
    font-size: var(--font-size-sm);
    color: var(--color-gray-500);
    transition: color var(--transition-fast);
}

.footer-links a:hover {
    color: var(--color-eco);
}

.footer-contact p {
    font-size: var(--font-size-sm);
    color: var(--color-gray-500);
    margin-bottom: var(--space-2);
}

.footer-social {
    display: flex;
    gap: var(--space-3);
    margin-top: var(--space-4);
}

.footer-social .social-icon {
    color: var(--color-gray-500);
}

.footer-social .social-icon:hover {
    color: var(--color-eco);
    background: rgba(76, 175, 80, 0.1);
}

.footer-bottom {
    border-top: 1px solid var(--color-dark-700);
    padding-top: var(--space-6);
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: var(--space-4);
}

.footer-copyright {
    font-size: var(--font-size-sm);
    color: var(--color-gray-600);
}

/* Responsive Design */
@media (max-width: 1024px) {
    .about-content {
        grid-template-columns: 1fr;
        gap: var(--space-8);
    }
    
    .stats-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .service-detail-content {
        grid-template-columns: 1fr;
    }
    
    .contact-grid {
        grid-template-columns: 1fr;
        gap: var(--space-8);
    }
    
    .footer-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    :root {
        --header-height: var(--header-height-mobile);
    }
    
    .header {
        height: var(--header-height-mobile);
    }
    
.logo {
    margin-left: -40px;
}

.logo img {
    height: 50px;
}
    
    .nav {
        position: fixed;
        top: var(--header-height-mobile);
        left: 0;
        right: 0;
        background: var(--color-dark-900);
        flex-direction: column;
        padding: var(--space-6);
        border-bottom: 1px solid var(--color-dark-700);
        transform: translateY(-100%);
        opacity: 0;
        visibility: hidden;
        transition: all var(--transition-base);
    }
    
    .nav.active {
        transform: translateY(0);
        opacity: 1;
        visibility: visible;
    }
    
    .nav-menu {
        flex-direction: column;
        gap: var(--space-4);
        width: 100%;
    }
    
    .nav-link {
        display: block;
        padding: var(--space-3) 0;
        font-size: var(--font-size-lg);
    }
    
    .header-cta,
    .header-social {
        display: none;
    }
    
    .mobile-menu-toggle {
        display: block;
    }
    
    .hero {
        min-height: auto;
        padding: calc(var(--header-height-mobile) + var(--space-12)) 0 var(--space-12);
    }
    
    .hero-bg {
        background-attachment: scroll;
    }
    
    .hero-title {
        font-size: var(--font-size-4xl);
    }
    
    .hero-description {
        font-size: var(--font-size-lg);
    }
    
    .page-hero .hero-title {
        font-size: var(--font-size-3xl);
    }
    
    .section {
        padding: var(--space-16) 0;
    }
    
    .section-title {
        font-size: var(--font-size-3xl);
    }
    
    .projects-strip {
        grid-template-columns: 1fr;
    }
    
    .stats-grid {
        grid-template-columns: 1fr;
    }
    
    .form-grid {
        grid-template-columns: 1fr;
    }
    
    .download-content {
        flex-direction: column;
        text-align: center;
    }
    
    .footer-grid {
        grid-template-columns: 1fr;
        gap: var(--space-8);
    }
    
    .footer-bottom {
        flex-direction: column;
        text-align: center;
    }
    
    .projects-grid {
        grid-template-columns: 1fr;
    }
    
    .social-links {
        flex-direction: column;
        align-items: center;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 var(--space-4);
    }
    
    .hero-buttons {
        flex-direction: column;
    }
    
    .btn {
        width: 100%;
    }
    
    .services-grid {
        grid-template-columns: 1fr;
    }
}

/* Utility Classes */
.text-center { text-align: center; }
.text-left { text-align: left; }
.text-right { text-align: right; }

.mt-0 { margin-top: 0; }
.mt-4 { margin-top: var(--space-4); }
.mt-6 { margin-top: var(--space-6); }
.mt-8 { margin-top: var(--space-8); }

.mb-0 { margin-bottom: 0; }
.mb-4 { margin-bottom: var(--space-4); }
.mb-6 { margin-bottom: var(--space-6); }
.mb-8 { margin-bottom: var(--space-8); }

.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
}