/* ============================================
   LYDERTRON TECH - PREMIUM STYLES.CSS
   Enhanced UI/UX with 3D Effects & Modern Design
   ============================================ */

/* ============================================
   CSS CUSTOM PROPERTIES (Design Tokens)
   Premium Color Palette & Typography
   ============================================ */
:root {
    /* Premium Colors - Luxury Industrial Theme */
    --color-primary: #0a0a0f;
    --color-secondary: #12121a;
    --color-tertiary: #1a1a25;
    --color-accent: #6366f1;
    --color-accent-light: #818cf8;
    --color-highlight: #f59e0b;
    --color-highlight-hover: #fbbf24;
    --color-success: #10b981;
    --color-error: #ef4444;
    
    /* Elegant Gold & Blue Palette */
    --gold-primary: #d4af37;
    --gold-light: #f4d03f;
    --gold-dark: #b8860b;
    --blue-electric: #00d4ff;
    --blue-deep: #0066cc;
    --purple-accent: #a855f7;
    
    /* Text Colors */
    --text-primary: #ffffff;
    --text-secondary: #e2e8f0;
    --text-muted: #94a3b8;
    --text-light: #cbd5e1;
    
    /* Premium Glass Effect */
    --glass-bg: rgba(255, 255, 255, 0.03);
    --glass-bg-hover: rgba(255, 255, 255, 0.08);
    --glass-border: rgba(255, 255, 255, 0.08);
    --glass-border-hover: rgba(255, 255, 255, 0.15);
    
    /* Premium Gradients */
    --gradient-primary: linear-gradient(135deg, #0a0a0f 0%, #1a1a25 50%, #12121a 100%);
    --gradient-accent: linear-gradient(135deg, #6366f1 0%, #8b5cf6 50%, #a855f7 100%);
    --gradient-gold: linear-gradient(135deg, #d4af37 0%, #f4d03f 50%, #d4af37 100%);
    --gradient-electric: linear-gradient(135deg, #00d4ff 0%, #6366f1 100%);
    --gradient-sunset: linear-gradient(135deg, #f59e0b 0%, #ef4444 50%, #ec4899 100%);
    --gradient-mesh: radial-gradient(at 40% 20%, hsla(228,100%,74%,0.15) 0px, transparent 50%),
                     radial-gradient(at 80% 0%, hsla(189,100%,56%,0.1) 0px, transparent 50%),
                     radial-gradient(at 0% 50%, hsla(355,100%,93%,0.05) 0px, transparent 50%);
    
    /* Typography - Premium Fonts */
    --font-display: 'Playfair Display', serif;
    --font-heading: 'Montserrat', sans-serif;
    --font-body: 'Open Sans', sans-serif;
    --font-accent: 'Lato', sans-serif;
    
    /* Spacing Scale */
    --space-xs: 0.25rem;
    --space-sm: 0.5rem;
    --space-md: 1rem;
    --space-lg: 1.5rem;
    --space-xl: 2.5rem;
    --space-2xl: 4rem;
    --space-3xl: 6rem;
    
    /* Border Radius */
    --radius-sm: 6px;
    --radius-md: 12px;
    --radius-lg: 20px;
    --radius-xl: 30px;
    --radius-full: 9999px;
    
    /* Premium Transitions */
    --transition-fast: 0.15s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-normal: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-slow: 0.5s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-bounce: 0.5s cubic-bezier(0.68, -0.55, 0.265, 1.55);
    
    /* Premium Shadows */
    --shadow-sm: 0 2px 10px rgba(0, 0, 0, 0.2);
    --shadow-md: 0 8px 30px rgba(0, 0, 0, 0.3);
    --shadow-lg: 0 15px 50px rgba(0, 0, 0, 0.4);
    --shadow-glow-accent: 0 0 40px rgba(99, 102, 241, 0.4);
    --shadow-glow-gold: 0 0 40px rgba(212, 175, 55, 0.4);
    --shadow-glow-electric: 0 0 40px rgba(0, 212, 255, 0.4);
    --shadow-3d: 0 25px 50px -12px rgba(0, 0, 0, 0.5);
    
    /* Z-Index Scale */
    --z-base: 1;
    --z-dropdown: 100;
    --z-sticky: 200;
    --z-fixed: 300;
    --z-overlay: 400;
    --z-modal: 500;
}

/* ============================================
   RESET & BASE STYLES
   ============================================ */
*, *::before, *::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
    scroll-padding-top: 100px;
}

body {
    font-family: var(--font-body);
    font-size: 16px;
    line-height: 1.7;
    color: var(--text-primary);
    background: var(--color-primary);
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* Custom Selection */
::selection {
    background: var(--color-accent);
    color: var(--text-primary);
}

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

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

ul { list-style: none; }

button {
    border: none;
    background: none;
    cursor: pointer;
    font-family: inherit;
}

input, textarea, select {
    font-family: inherit;
    font-size: inherit;
}

/* ============================================
   UTILITY CLASSES
   ============================================ */
.container {
    width: 100%;
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 var(--space-xl);
}

.section-header {
    text-align: center;
    margin-bottom: var(--space-3xl);
}

.section-tag {
    display: inline-flex;
    align-items: center;
    gap: var(--space-sm);
    padding: var(--space-sm) var(--space-lg);
    background: linear-gradient(135deg, rgba(99, 102, 241, 0.2), rgba(168, 85, 247, 0.2));
    color: var(--color-accent-light);
    font-family: var(--font-accent);
    font-size: 0.8rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 3px;
    border-radius: var(--radius-full);
    border: 1px solid rgba(99, 102, 241, 0.3);
    margin-bottom: var(--space-lg);
    backdrop-filter: blur(10px);
}

.section-tag::before {
    content: '';
    width: 8px;
    height: 8px;
    background: var(--color-accent);
    border-radius: 50%;
    animation: pulse-dot 2s infinite;
}

@keyframes pulse-dot {
    0%, 100% { opacity: 1; transform: scale(1); }
    50% { opacity: 0.5; transform: scale(1.2); }
}

.section-title {
    font-family: var(--font-display);
    font-size: clamp(2.5rem, 5vw, 4rem);
    font-weight: 700;
    margin-bottom: var(--space-lg);
    background: linear-gradient(135deg, #fff 0%, #e2e8f0 50%, #fff 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    text-shadow: none;
    letter-spacing: -0.02em;
}

.title-underline {
    width: 100px;
    height: 4px;
    background: var(--gradient-accent);
    margin: 0 auto;
    border-radius: var(--radius-full);
    position: relative;
    overflow: hidden;
}

.title-underline::after {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255,255,255,0.5), transparent);
    animation: shine 3s infinite;
}

@keyframes shine {
    0% { left: -100%; }
    50%, 100% { left: 100%; }
}

/* ============================================
   PREMIUM GLASS CARD
   ============================================ */
.glass-card {
    background: var(--glass-bg);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-lg);
    transition: all var(--transition-normal);
}

.glass-card:hover {
    background: var(--glass-bg-hover);
    border-color: var(--glass-border-hover);
    box-shadow: var(--shadow-3d);
}

/* ============================================
   FADE IN ANIMATIONS
   ============================================ */
.fade-in {
    opacity: 0;
    transform: translateY(40px) scale(0.98);
    transition: opacity 0.8s ease, transform 0.8s cubic-bezier(0.4, 0, 0.2, 1);
}

.fade-in.visible {
    opacity: 1;
    transform: translateY(0) scale(1);
}

/* ============================================
   PREMIUM 3D BUTTONS
   ============================================ */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-sm);
    padding: 1rem 2.5rem;
    font-family: var(--font-heading);
    font-weight: 600;
    font-size: 0.95rem;
    letter-spacing: 0.5px;
    border-radius: var(--radius-xl);
    cursor: pointer;
    position: relative;
    overflow: hidden;
    transition: all var(--transition-normal);
    text-transform: uppercase;
    isolation: isolate;
}

/* Primary Button - Electric Glow */
.btn-primary {
    background: var(--gradient-accent);
    color: var(--text-primary);
    border: none;
    box-shadow: 0 4px 15px rgba(99, 102, 241, 0.4),
                inset 0 1px 0 rgba(255, 255, 255, 0.2);
}

.btn-primary::before {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, rgba(255,255,255,0.25) 0%, transparent 50%);
    opacity: 0;
    transition: opacity var(--transition-fast);
}

.btn-primary::after {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: conic-gradient(from 0deg, transparent, rgba(255,255,255,0.3), transparent 30%);
    animation: rotate 4s linear infinite;
    opacity: 0;
    transition: opacity var(--transition-normal);
}

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

.btn-primary:hover {
    transform: translateY(-4px) scale(1.02);
    box-shadow: 0 8px 30px rgba(99, 102, 241, 0.5),
                0 0 60px rgba(99, 102, 241, 0.3),
                inset 0 1px 0 rgba(255, 255, 255, 0.3);
}

.btn-primary:hover::before { opacity: 1; }
.btn-primary:hover::after { opacity: 1; }

.btn-primary:active {
    transform: translateY(-2px) scale(0.98);
}

/* Secondary Button - Glass */
.btn-secondary {
    background: rgba(255, 255, 255, 0.05);
    color: var(--text-primary);
    border: 2px solid rgba(255, 255, 255, 0.2);
    backdrop-filter: blur(10px);
}

.btn-secondary::before {
    content: '';
    position: absolute;
    inset: 0;
    background: var(--gradient-accent);
    opacity: 0;
    transition: opacity var(--transition-normal);
    z-index: -1;
}

.btn-secondary:hover {
    border-color: var(--color-accent);
    transform: translateY(-4px);
    box-shadow: 0 8px 30px rgba(99, 102, 241, 0.3);
}

.btn-secondary:hover::before { opacity: 1; }

/* Button Sizes */
.btn-small {
    padding: 0.6rem 1.5rem;
    font-size: 0.85rem;
    border-radius: var(--radius-lg);
}

.btn-large {
    padding: 1.25rem 3rem;
    font-size: 1.1rem;
}

.btn-full {
    width: 100%;
}

.btn i {
    transition: transform var(--transition-fast);
    font-size: 0.9em;
}

.btn:hover i {
    transform: translateX(4px);
}

/* ============================================
   HEADER & NAVIGATION
   ============================================ */
.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: var(--z-fixed);
    padding: var(--space-lg) 0;
    transition: padding var(--transition-normal), background var(--transition-normal);
}

.header.scrolled {
    background: rgba(10, 10, 15, 0.95);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-bottom: 1px solid rgba(255, 255, 255, 0.08);
    padding: var(--space-sm) 0;
    box-shadow: 0 4px 30px rgba(0, 0, 0, 0.4);
}

.navbar { width: 100%; }

.nav-container {
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 var(--space-xl);
    display: flex;
    align-items: center;
    justify-content: space-between;
}

/* Logo - Clean simple design */
.logo {
    display: flex;
    align-items: center;
    font-family: var(--font-heading);
    font-size: 1.5rem;
    font-weight: 700;
    letter-spacing: 0;
    text-decoration: none;
}

.logo-text {
    color: var(--text-primary);
    transition: color var(--transition-fast);
}

.logo-accent {
    color: var(--color-accent-light);
    margin-left: 2px;
    transition: color var(--transition-fast);
}

.logo:hover .logo-text { color: var(--text-secondary); }
.logo:hover .logo-accent { color: var(--color-accent); }

/* Nav Menu */
.nav-menu {
    display: flex;
    align-items: center;
    gap: var(--space-xl);
}

.nav-link {
    font-family: var(--font-heading);
    font-weight: 500;
    font-size: 0.9rem;
    color: var(--text-muted);
    position: relative;
    padding: var(--space-sm) 0;
    letter-spacing: 0.5px;
    transition: color var(--transition-fast);
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -2px;
    left: 50%;
    width: 0;
    height: 2px;
    background: var(--gradient-accent);
    transition: all var(--transition-normal);
    transform: translateX(-50%);
    border-radius: 2px;
}

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

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

/* Mobile Menu Toggle */
.nav-toggle {
    display: none;
    width: 40px;
    height: 40px;
    position: relative;
    z-index: var(--z-modal);
    align-items: center;
    justify-content: center;
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-md);
    transition: var(--transition-fast);
}

.nav-toggle:hover {
    background: var(--glass-bg-hover);
    border-color: var(--color-accent);
}

.hamburger {
    display: block;
    width: 22px;
    height: 2px;
    background: var(--text-primary);
    border-radius: 2px;
    transition: var(--transition-fast);
    position: relative;
}

.hamburger::before,
.hamburger::after {
    content: '';
    position: absolute;
    left: 0;
    width: 100%;
    height: 2px;
    background: var(--text-primary);
    border-radius: 2px;
    transition: var(--transition-normal);
}

.hamburger::before { top: -7px; }
.hamburger::after { bottom: -7px; }

.nav-toggle.active .hamburger { background: transparent; }
.nav-toggle.active .hamburger::before { top: 0; transform: rotate(45deg); }
.nav-toggle.active .hamburger::after { bottom: 0; transform: rotate(-45deg); }

/* ============================================
   PARALLAX SECTIONS
   ============================================ */
.parallax-section {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    overflow: hidden;
}

.parallax-bg {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 130%;
    background-size: cover;
    background-position: center;
    will-change: transform;
    z-index: -2;
}

.section-overlay,
.hero-overlay {
    position: absolute;
    inset: 0;
    z-index: -1;
}

/* ============================================
   HERO SECTION - PREMIUM
   ============================================ */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    padding: var(--space-3xl) 0;
    background: var(--color-primary);
}

.hero-bg {
    background: url('./img/image1.png') center/cover no-repeat;
    background-attachment: fixed;
    filter: brightness(0.15) saturate(0.6) blur(2px);
}

.hero-overlay {
    background: 
        radial-gradient(ellipse at 30% 20%, rgba(99, 102, 241, 0.15) 0%, transparent 50%),
        radial-gradient(ellipse at 70% 80%, rgba(168, 85, 247, 0.1) 0%, transparent 50%),
        linear-gradient(180deg, rgba(10, 10, 15, 0.5) 0%, rgba(10, 10, 15, 0.95) 100%);
}

.hero-content {
    position: relative;
    z-index: var(--z-base);
    max-width: 900px;
    padding: 0 var(--space-xl);
    animation: heroFadeIn 1.2s ease forwards;
}

@keyframes heroFadeIn {
    from { opacity: 0; transform: translateY(60px) scale(0.95); }
    to { opacity: 1; transform: translateY(0) scale(1); }
}

.hero-logo-container {
    margin-bottom: var(--space-xl);
    perspective: 1000px;
}

.hero-logo {
    max-width: 220px;
    margin: 0 auto;
    filter: drop-shadow(0 0 40px rgba(99, 102, 241, 0.4));
    animation: float3D 6s ease-in-out infinite;
    transform-style: preserve-3d;
}

@keyframes float3D {
    0%, 100% { 
        transform: translateY(0) rotateY(0deg) rotateX(0deg); 
        filter: drop-shadow(0 0 40px rgba(99, 102, 241, 0.4));
    }
    25% { 
        transform: translateY(-15px) rotateY(5deg) rotateX(2deg); 
        filter: drop-shadow(0 20px 60px rgba(99, 102, 241, 0.5));
    }
    50% { 
        transform: translateY(-20px) rotateY(0deg) rotateX(-2deg); 
        filter: drop-shadow(0 25px 80px rgba(168, 85, 247, 0.5));
    }
    75% { 
        transform: translateY(-10px) rotateY(-5deg) rotateX(2deg); 
        filter: drop-shadow(0 15px 50px rgba(99, 102, 241, 0.5));
    }
}

.hero-title {
    font-family: var(--font-display);
    margin-bottom: var(--space-xl);
}

.title-line {
    display: block;
    font-size: clamp(3rem, 8vw, 5rem);
    font-weight: 800;
    letter-spacing: -0.03em;
    line-height: 1.1;
    background: linear-gradient(135deg, #fff 0%, #e2e8f0 40%, #fff 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    text-shadow: none;
}

.title-accent {
    display: block;
    font-family: var(--font-accent);
    font-size: clamp(1.5rem, 4vw, 2.5rem);
    font-weight: 300;
    letter-spacing: 0.3em;
    text-transform: uppercase;
    background: var(--gradient-accent);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    margin-top: var(--space-sm);
}

.hero-subtitle {
    font-family: var(--font-heading);
    font-size: 1.3rem;
    font-weight: 400;
    color: var(--color-accent-light);
    margin-bottom: var(--space-md);
    min-height: 35px;
}

.hero-subtitle-static {
    font-family: var(--font-accent);
    font-size: 0.95rem;
    color: var(--text-muted);
    margin-bottom: var(--space-2xl);
    letter-spacing: 0.5em;
    text-transform: uppercase;
}

.hero-buttons {
    display: flex;
    gap: var(--space-lg);
    justify-content: center;
    flex-wrap: wrap;
    margin-bottom: var(--space-3xl);
}

/* Scroll Indicator */
.scroll-indicator {
    position: absolute;
    bottom: var(--space-lg);
    left: 50%;
    transform: translateX(-50%);
    text-align: center;
    animation: fadeInUp 1s ease 1s forwards;
    opacity: 0;
}

@keyframes fadeInUp {
    to { opacity: 1; }
}

.scroll-indicator span {
    display: block;
    font-family: var(--font-accent);
    font-size: 0.75rem;
    color: var(--text-muted);
    margin-bottom: var(--space-sm);
    letter-spacing: 0.2em;
    text-transform: uppercase;
}

.mouse {
    width: 26px;
    height: 42px;
    border: 2px solid rgba(255, 255, 255, 0.3);
    border-radius: 14px;
    margin: 0 auto;
    position: relative;
}

.wheel {
    width: 4px;
    height: 8px;
    background: var(--color-accent);
    border-radius: 2px;
    position: absolute;
    top: 8px;
    left: 50%;
    transform: translateX(-50%);
    animation: scrollWheel 2s infinite;
}

@keyframes scrollWheel {
    0% { opacity: 1; top: 8px; }
    100% { opacity: 0; top: 24px; }
}

/* ============================================
   ABOUT SECTION
   ============================================ */
.about {
    padding: var(--space-3xl) 0;
    background: var(--color-secondary);
    position: relative;
}

.about::before {
    content: '';
    position: absolute;
    inset: 0;
    background: var(--gradient-mesh);
    pointer-events: none;
}

.about-bg {
    background: url('img/image3.jpg') center/cover no-repeat;
    background-attachment: fixed;
    filter: brightness(0.15) saturate(0.5) blur(3px);
}

.about-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-3xl);
    align-items: center;
    position: relative;
}

.about-text .lead {
    font-family: var(--font-display);
    font-size: 1.5rem;
    font-weight: 400;
    color: var(--text-primary);
    margin-bottom: var(--space-lg);
    line-height: 1.6;
}

.about-text p {
    font-family: var(--font-body);
    color: var(--text-secondary);
    margin-bottom: var(--space-xl);
    font-size: 1.05rem;
}

.about-info {
    display: flex;
    flex-direction: column;
    gap: var(--space-md);
}

.info-item {
    display: flex;
    align-items: center;
    gap: var(--space-lg);
    padding: var(--space-lg);
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-lg);
    transition: all var(--transition-normal);
}

.info-item:hover {
    transform: translateX(10px);
    background: rgba(99, 102, 241, 0.1);
    border-color: rgba(99, 102, 241, 0.3);
    box-shadow: 0 10px 30px rgba(99, 102, 241, 0.15);
}

.info-item i {
    font-size: 1.5rem;
    width: 50px;
    height: 50px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--gradient-accent);
    border-radius: var(--radius-md);
    color: var(--text-primary);
}

.info-item h4 {
    font-family: var(--font-heading);
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--text-muted);
    margin-bottom: var(--space-xs);
    text-transform: uppercase;
    letter-spacing: 1px;
}

.info-item div > p {
    font-family: var(--font-body);
    font-size: 1rem;
    color: var(--text-primary);
    margin: 0;
    font-weight: 500;
}

.about-image { position: relative; }

.image-frame {
    position: relative;
    border-radius: var(--radius-xl);
    overflow: hidden;
    box-shadow: var(--shadow-3d);
}

.image-frame img {
    width: 100%;
    height: 450px;
    object-fit: contain;
    padding: var(--space-md);
    transition: transform var(--transition-slow);
}

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

.frame-accent {
    position: absolute;
    top: 25px;
    left: 25px;
    right: -25px;
    bottom: -25px;
    border: 2px solid var(--color-accent);
    border-radius: var(--radius-xl);
    z-index: -1;
    opacity: 0;
}

/* ============================================
   SERVICES SECTION
   ============================================ */
.services {
    padding: var(--space-3xl) 0;
    position: relative;
}

.services::before {
    content: '';
    position: absolute;
    inset: 0;
    background: var(--gradient-mesh);
    pointer-events: none;
}

.services-bg {
    background: url('./img/image7.jpeg') center/cover no-repeat;
    background-attachment: fixed;
    filter: brightness(0.12) saturate(0.4) blur(2px);
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: var(--space-xl);
}

.service-card {
    padding: var(--space-2xl);
    text-align: center;
    transition: all var(--transition-normal);
    position: relative;
    overflow: hidden;
}

.service-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: var(--gradient-accent);
    transform: scaleX(0);
    transition: transform var(--transition-normal);
}

.service-card:hover {
    transform: translateY(-15px);
    box-shadow: var(--shadow-3d), var(--shadow-glow-accent);
}

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

.service-icon {
    width: 90px;
    height: 90px;
    margin: 0 auto var(--space-xl);
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--gradient-accent);
    border-radius: var(--radius-xl);
    font-size: 2.2rem;
    color: var(--text-primary);
    box-shadow: var(--shadow-glow-accent);
    transition: transform var(--transition-bounce);
}

.service-card:hover .service-icon {
    transform: scale(1.1) rotateY(15deg);
}

.service-card h3 {
    font-family: var(--font-heading);
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: var(--space-md);
    color: var(--text-primary);
}

.service-card > p {
    font-family: var(--font-body);
    color: var(--text-secondary);
    margin-bottom: var(--space-xl);
    line-height: 1.7;
}

.service-features { text-align: left; }

.service-features li {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    padding: var(--space-sm) 0;
    color: var(--text-secondary);
    font-family: var(--font-body);
}

.service-features i {
    color: var(--color-accent-light);
    font-size: 0.9rem;
}

/* ============================================
   EXPERTISE SECTION
   ============================================ */
.expertise {
    padding: var(--space-3xl) 0;
    background: var(--color-primary);
    position: relative;
}

.expertise::before {
    content: '';
    position: absolute;
    inset: 0;
    background: var(--gradient-mesh);
    pointer-events: none;
}

.expertise-bg {
    background: url('./img/image8.jpg') center/cover no-repeat;
    background-attachment: fixed;
    filter: brightness(0.1) saturate(0.4) blur(2px);
}

.expertise-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(380px, 1fr));
    gap: var(--space-xl);
}

.expertise-card {
    padding: var(--space-2xl);
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-xl);
    transition: all var(--transition-normal);
    position: relative;
    overflow: hidden;
}

.expertise-card::after {
    content: '';
    position: absolute;
    top: -50%;
    right: -50%;
    width: 100%;
    height: 100%;
    background: radial-gradient(circle, rgba(99, 102, 241, 0.1) 0%, transparent 70%);
    transition: opacity var(--transition-normal);
    opacity: 0;
}

.expertise-card:hover {
    transform: translateY(-10px);
    border-color: var(--color-accent);
    box-shadow: var(--shadow-3d), var(--shadow-glow-accent);
}

.expertise-card:hover::after { opacity: 1; }

.expertise-header {
    display: flex;
    align-items: center;
    gap: var(--space-lg);
    margin-bottom: var(--space-lg);
}

.expertise-icon {
    width: 70px;
    height: 70px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--gradient-accent);
    border-radius: var(--radius-lg);
    font-size: 1.8rem;
    color: var(--text-primary);
    box-shadow: var(--shadow-glow-accent);
    flex-shrink: 0;
}

.expertise-card h3 {
    font-family: var(--font-heading);
    font-size: 1.4rem;
    font-weight: 700;
    color: var(--text-primary);
}

.expertise-card > p {
    font-family: var(--font-body);
    color: var(--text-secondary);
    margin-bottom: var(--space-xl);
    line-height: 1.7;
}

.brand-tags {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-sm);
}

.brand-tag {
    padding: var(--space-xs) var(--space-md);
    background: rgba(99, 102, 241, 0.15);
    color: var(--color-accent-light);
    font-family: var(--font-accent);
    font-size: 0.8rem;
    font-weight: 600;
    border-radius: var(--radius-full);
    border: 1px solid rgba(99, 102, 241, 0.3);
    transition: all var(--transition-fast);
}

.brand-tag:hover {
    background: var(--color-accent);
    color: var(--text-primary);
    transform: translateY(-2px);
}

/* ============================================
   PRODUCTS SECTION
   ============================================ */
.products {
    padding: var(--space-3xl) 0;
    position: relative;
}

.products::before {
    content: '';
    position: absolute;
    inset: 0;
    background: var(--gradient-mesh);
    pointer-events: none;
}

.products-bg {
    background: url('./img/image5.jpg') center/cover no-repeat;
    background-attachment: fixed;
    filter: brightness(0.1) saturate(0.4) blur(2px);
}

.products-carousel {
    position: relative;
    display: flex;
    align-items: center;
    gap: var(--space-lg);
}

.carousel-track-container {
    overflow: hidden;
    flex: 1;
    border-radius: var(--radius-lg);
}

.carousel-track {
    display: flex;
    gap: var(--space-xl);
    transition: transform 0.6s cubic-bezier(0.4, 0, 0.2, 1);
}

.carousel-btn {
    width: 56px;
    height: 56px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-full);
    color: var(--text-primary);
    font-size: 1.2rem;
    transition: all var(--transition-normal);
    flex-shrink: 0;
    backdrop-filter: blur(10px);
}

.carousel-btn:hover {
    background: var(--color-accent);
    border-color: var(--color-accent);
    box-shadow: var(--shadow-glow-accent);
    transform: scale(1.1);
}

.carousel-dots {
    display: flex;
    justify-content: center;
    gap: var(--space-sm);
    margin-top: var(--space-2xl);
}

.carousel-dot {
    width: 12px;
    height: 12px;
    border-radius: var(--radius-full);
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    cursor: pointer;
    transition: all var(--transition-fast);
}

.carousel-dot.active,
.carousel-dot:hover {
    background: var(--color-accent);
    border-color: var(--color-accent);
    transform: scale(1.2);
}

/* Product Card */
.product-card {
    min-width: 360px;
    flex-shrink: 0;
    overflow: hidden;
    transition: all var(--transition-normal);
    position: relative;
}

.product-card::before {
    content: '';
    position: absolute;
    inset: 0;
    border-radius: var(--radius-lg);
    padding: 2px;
    background: linear-gradient(135deg, transparent 0%, rgba(99, 102, 241, 0.3) 100%);
    -webkit-mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
    -webkit-mask-composite: xor;
    mask-composite: exclude;
    opacity: 0;
    transition: opacity var(--transition-normal);
}

.product-card:hover {
    transform: translateY(-15px) scale(1.02);
    box-shadow: var(--shadow-3d);
}

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

.product-image {
    position: relative;
    height: 220px;
    overflow: hidden;
    border-radius: var(--radius-lg) var(--radius-lg) 0 0;
}

.product-image img {
    width: 100%;
    height: 100%;
    object-fit: contain;
    padding: var(--space-md);
    transition: transform var(--transition-slow);
}

.product-card:hover .product-image img {
    background: #fff;
    /* transform: scale(1.05); - Removed to prevent cropping */
}

.product-badge {
    position: absolute;
    top: var(--space-md);
    right: var(--space-md);
    padding: var(--space-xs) var(--space-md);
    background: var(--gradient-accent);
    color: var(--text-primary);
    font-family: var(--font-accent);
    font-size: 0.75rem;
    font-weight: 700;
    letter-spacing: 1px;
    border-radius: var(--radius-full);
    text-transform: uppercase;
}

.product-content {
    padding: var(--space-xl);
}

.product-content h3 {
    font-family: var(--font-heading);
    font-size: 1.25rem;
    font-weight: 700;
    margin-bottom: var(--space-sm);
    color: var(--text-primary);
}

.product-desc {
    font-family: var(--font-body);
    font-size: 0.9rem;
    color: var(--text-muted);
    margin-bottom: var(--space-md);
}

.product-specs {
    margin-bottom: var(--space-lg);
}

.product-specs li {
    display: flex;
    justify-content: space-between;
    padding: var(--space-sm) 0;
    font-family: var(--font-body);
    font-size: 0.85rem;
    color: var(--text-muted);
    border-bottom: 1px solid var(--glass-border);
}

.product-specs li span {
    color: var(--text-secondary);
    font-weight: 500;
}

.product-price {
    font-family: var(--font-heading);
    font-size: 1.75rem;
    font-weight: 800;
    background: var(--gradient-gold);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    margin-bottom: var(--space-md);
}

.product-price span {
    font-size: 0.9rem;
    font-weight: 400;
}

/* ============================================
   WHY CHOOSE US SECTION
   ============================================ */
.why-us {
    padding: var(--space-3xl) 0;
    position: relative;
}

.why-us::before {
    content: '';
    position: absolute;
    inset: 0;
    background: var(--gradient-mesh);
    pointer-events: none;
}

.why-us-bg {
    background: url('./img/image4.jpg') center/cover no-repeat;
    background-attachment: fixed;
    filter: brightness(0.12) saturate(0.4) blur(2px);
}

.benefits-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: var(--space-xl);
    margin-bottom: var(--space-3xl);
}

.benefit-card {
    text-align: center;
    padding: var(--space-2xl);
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-xl);
    transition: all var(--transition-normal);
    position: relative;
    overflow: hidden;
}

.benefit-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 60px;
    height: 3px;
    background: var(--gradient-accent);
    border-radius: var(--radius-full);
    transition: width var(--transition-normal);
}

.benefit-card:hover {
    transform: translateY(-15px);
    border-color: var(--color-accent);
    box-shadow: var(--shadow-3d), var(--shadow-glow-accent);
}

.benefit-card:hover::before { width: 100%; }

.benefit-icon {
    width: 80px;
    height: 80px;
    margin: 0 auto var(--space-xl);
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--gradient-accent);
    border-radius: var(--radius-xl);
    font-size: 2rem;
    color: var(--text-primary);
    box-shadow: var(--shadow-glow-accent);
    transition: transform var(--transition-bounce);
}

.benefit-card:hover .benefit-icon {
    transform: scale(1.15) rotateZ(5deg);
}

.benefit-card h3 {
    font-family: var(--font-heading);
    font-size: 1.25rem;
    font-weight: 700;
    margin-bottom: var(--space-sm);
    color: var(--text-primary);
}

.benefit-card p {
    font-family: var(--font-body);
    color: var(--text-secondary);
    font-size: 0.95rem;
}

/* Stats Container */
.stats-container {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
    gap: var(--space-xl);
    padding: var(--space-2xl);
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-xl);
    margin-bottom: var(--space-3xl);
    backdrop-filter: blur(20px);
}

.stat-item { text-align: center; }

.stat-number {
    font-family: var(--font-display);
    font-size: clamp(2.5rem, 5vw, 3.5rem);
    font-weight: 800;
    background: var(--gradient-accent);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    line-height: 1;
    margin-bottom: var(--space-sm);
}

.stat-label {
    font-family: var(--font-accent);
    font-size: 0.85rem;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 2px;
}

/* CTA Section */
.cta-section { text-align: center; }

.cta-text {
    font-family: var(--font-display);
    font-size: 1.5rem;
    color: var(--text-secondary);
    margin-bottom: var(--space-xl);
}

/* ============================================
   CONTACT SECTION
   ============================================ */
.contact {
    padding: var(--space-3xl) 0;
    position: relative;
}

.contact::before {
    content: '';
    position: absolute;
    inset: 0;
    background: var(--gradient-mesh);
    pointer-events: none;
}

.contact-bg {
    background: url('./img/image10.jpg') center/cover no-repeat;
    background-attachment: fixed;
    filter: brightness(0.1) saturate(0.4) blur(2px);
}

.contact-wrapper {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-3xl);
    align-items: start;
}

.contact-info h3 {
    font-family: var(--font-display);
    font-size: 2rem;
    margin-bottom: var(--space-md);
    color: var(--text-primary);
}

.contact-info > p {
    font-family: var(--font-body);
    color: var(--text-secondary);
    margin-bottom: var(--space-2xl);
    font-size: 1.05rem;
}

.contact-details {
    display: flex;
    flex-direction: column;
    gap: var(--space-lg);
    margin-bottom: var(--space-2xl);
}

.contact-item {
    display: flex;
    align-items: center;
    gap: var(--space-lg);
}

.contact-icon {
    width: 56px;
    height: 56px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--gradient-accent);
    border-radius: var(--radius-lg);
    font-size: 1.25rem;
    color: var(--text-primary);
    box-shadow: var(--shadow-glow-accent);
    flex-shrink: 0;
}

.contact-item h4 {
    font-family: var(--font-heading);
    font-size: 0.8rem;
    font-weight: 600;
    margin-bottom: var(--space-xs);
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 1px;
}

.contact-item a,
.contact-item > div > p {
    font-family: var(--font-body);
    color: var(--text-primary);
    font-size: 1rem;
    font-weight: 500;
    margin: 0;
}

.contact-item a:hover { color: var(--color-accent-light); }

/* Social Links */
.social-links {
    display: flex;
    gap: var(--space-md);
}

.social-link {
    width: 50px;
    height: 50px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-lg);
    font-size: 1.2rem;
    color: var(--text-primary);
    transition: all var(--transition-normal);
}

.social-link:hover {
    background: var(--color-accent);
    border-color: var(--color-accent);
    transform: translateY(-5px) scale(1.1);
    box-shadow: var(--shadow-glow-accent);
}

/* Contact Form */
.contact-form-container {
    padding: var(--space-2xl);
    border-radius: var(--radius-xl);
}

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

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

.form-group label {
    font-family: var(--font-heading);
    font-weight: 600;
    font-size: 0.85rem;
    color: var(--text-primary);
    text-transform: uppercase;
    letter-spacing: 1px;
}

.form-group input,
.form-group textarea,
.form-group select {
    padding: var(--space-md) var(--space-lg);
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-md);
    color: var(--text-primary);
    font-family: var(--font-body);
    transition: all var(--transition-fast);
}

.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
    outline: none;
    border-color: var(--color-accent);
    background: rgba(99, 102, 241, 0.05);
    box-shadow: 0 0 20px rgba(99, 102, 241, 0.15);
}

.form-group input::placeholder,
.form-group textarea::placeholder {
    color: var(--text-muted);
}

.form-group select option {
    background: var(--color-primary);
    color: var(--text-primary);
}

.error-message {
    font-family: var(--font-body);
    font-size: 0.8rem;
    color: var(--color-error);
    display: none;
}

.form-group.error .error-message { display: block; }
.form-group.error input,
.form-group.error textarea { border-color: var(--color-error); }

/* ============================================
   FOOTER
   ============================================ */
.footer {
    background: var(--color-primary);
    border-top: 1px solid var(--glass-border);
    padding: var(--space-3xl) 0 var(--space-xl);
}

.footer-content {
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 var(--space-xl);
    display: grid;
    grid-template-columns: 2fr 1fr 1fr;
    gap: var(--space-2xl);
    margin-bottom: var(--space-2xl);
}

.footer-brand .logo { margin-bottom: var(--space-md); }

.footer-brand p {
    font-family: var(--font-body);
    color: var(--text-muted);
    font-size: 0.95rem;
}

.footer-links h4,
.footer-contact h4 {
    font-family: var(--font-heading);
    font-size: 1rem;
    font-weight: 700;
    margin-bottom: var(--space-lg);
    color: var(--text-primary);
    text-transform: uppercase;
    letter-spacing: 1px;
}

.footer-links ul {
    display: flex;
    flex-direction: column;
    gap: var(--space-sm);
}

.footer-links a {
    font-family: var(--font-body);
    color: var(--text-muted);
    font-size: 0.95rem;
    transition: all var(--transition-fast);
    display: inline-block;
}

.footer-links a:hover {
    color: var(--color-accent-light);
    transform: translateX(5px);
}

.footer-contact p {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    font-family: var(--font-body);
    color: var(--text-muted);
    font-size: 0.95rem;
    margin-bottom: var(--space-sm);
}

.footer-contact i { color: var(--color-accent); }

.footer-bottom {
    text-align: center;
    padding-top: var(--space-xl);
    border-top: 1px solid var(--glass-border);
}

.footer-bottom p {
    font-family: var(--font-body);
    color: var(--text-muted);
    font-size: 0.9rem;
}

/* ============================================
   BACK TO TOP BUTTON
   ============================================ */
.back-to-top {
    position: fixed;
    bottom: var(--space-xl);
    right: var(--space-xl);
    width: 56px;
    height: 56px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--gradient-accent);
    border-radius: var(--radius-full);
    color: var(--text-primary);
    font-size: 1.25rem;
    box-shadow: var(--shadow-glow-accent);
    opacity: 0;
    visibility: hidden;
    transform: translateY(30px);
    transition: all var(--transition-normal);
    z-index: var(--z-fixed);
}

.back-to-top.visible {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.back-to-top:hover {
    transform: translateY(-8px) scale(1.1);
    box-shadow: 0 0 50px rgba(99, 102, 241, 0.6);
}

/* ============================================
   RESPONSIVE STYLES
   ============================================ */
@media (max-width: 992px) {
    .about-content { grid-template-columns: 1fr; gap: var(--space-2xl); }
    .about-image { order: -1; }
    .contact-wrapper { grid-template-columns: 1fr; }
    .footer-content { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 768px) {
    .nav-toggle { display: flex; }
    
    .nav-menu {
        position: fixed;
        top: 0;
        right: -100%;
        width: 80%;
        max-width: 320px;
        height: 100vh;
        background: var(--color-primary);
        flex-direction: column;
        justify-content: center;
        padding: var(--space-2xl);
        transition: right var(--transition-normal);
        box-shadow: var(--shadow-lg);
        border-left: 1px solid var(--glass-border);
    }
    
    .nav-menu.active { right: 0; }
    .nav-link { font-size: 1.2rem; padding: var(--space-md) 0; }
    
    /* Products Carousel Mobile Fix */
    .products-carousel {
        flex-direction: column;
        gap: var(--space-md);
    }
    
    .carousel-track-container {
        width: 100%;
        order: 1;
    }
    
    .carousel-track {
        gap: var(--space-md);
    }
    
    .product-card {
        min-width: calc(100vw - 80px);
        max-width: calc(100vw - 80px);
    }
    
    .products-carousel .carousel-btn.prev,
    .products-carousel .carousel-btn.next {
        position: absolute;
        top: 50%;
        transform: translateY(-50%);
        z-index: 10;
        width: 40px;
        height: 40px;
        font-size: 0.9rem;
    }
    
    .products-carousel .carousel-btn.prev {
        left: 5px;
    }
    
    .products-carousel .carousel-btn.next {
        right: 5px;
    }
    
    .carousel-btn { width: 44px; height: 44px; font-size: 1rem; }
    
    /* Services Section Mobile Fix */
    .services-grid {
        grid-template-columns: 1fr;
        gap: var(--space-lg);
    }
    
    .service-card {
        padding: var(--space-lg);
    }
    
    .service-card h3 {
        font-size: 1.25rem;
    }
    
    .service-icon {
        width: 70px;
        height: 70px;
        font-size: 1.8rem;
    }
    
    /* Expertise Section Mobile Fix */
    .expertise-grid {
        grid-template-columns: 1fr;
    }
    
    .expertise-card {
        padding: var(--space-lg);
    }
    
    .expertise-header {
        flex-direction: column;
        text-align: center;
    }
    
    .expertise-icon {
        width: 60px;
        height: 60px;
        font-size: 1.5rem;
    }
    
    .expertise-card h3 {
        font-size: 1.2rem;
    }
    
    .brand-tags {
        justify-content: center;
    }
    
    /* Contact Section Mobile Fix */
    .contact-wrapper {
        grid-template-columns: 1fr;
        gap: var(--space-xl);
    }
    
    .contact-info {
        text-align: center;
    }
    
    .contact-info h3 {
        font-size: 1.5rem;
    }
    
    .contact-details {
        align-items: center;
    }
    
    .contact-item {
        flex-direction: column;
        text-align: center;
        gap: var(--space-sm);
    }
    
    .social-links {
        justify-content: center;
    }
    
    .contact-form-container {
        padding: var(--space-lg);
    }
    
    .form-group input,
    .form-group textarea,
    .form-group select {
        padding: var(--space-md);
        font-size: 16px; /* Prevents iOS zoom on focus */
    }
    
    .footer-content { grid-template-columns: 1fr; text-align: center; }
    .footer-links ul { align-items: center; }
    .footer-contact p { justify-content: center; }
}

@media (max-width: 480px) {
    :root {
        --space-lg: 1.25rem;
        --space-xl: 2rem;
        --space-2xl: 3rem;
        --space-3xl: 4rem;
    }
    
    .hero-buttons { flex-direction: column; align-items: center; }
    .btn { width: 100%; max-width: 300px; justify-content: center; }
    .expertise-grid { grid-template-columns: 1fr; }
    
    /* Products Carousel Mobile Small Fix */
    .product-card {
        min-width: calc(100vw - 60px);
        max-width: calc(100vw - 60px);
    }
    
    .product-content {
        padding: var(--space-md);
    }
    
    .product-content h3 {
        font-size: 1.1rem;
    }
    
    .product-desc {
        font-size: 0.85rem;
    }
    
    .product-price {
        font-size: 1.5rem;
    }
    
    .products-carousel .carousel-btn.prev {
        left: 2px;
    }
    
    .products-carousel .carousel-btn.next {
        right: 2px;
    }
    
    .products-carousel .carousel-btn.prev,
    .products-carousel .carousel-btn.next {
        width: 36px;
        height: 36px;
        font-size: 0.8rem;
    }
    
    .stats-container { grid-template-columns: repeat(2, 1fr); }
    .scroll-indicator { display: none; }
}

@media (prefers-reduced-motion: reduce) {
    *, *::before, *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
    html { scroll-behavior: auto; }
}