/* =============================================
   ASENIE TECHNOLOGIES - MAIN STYLESHEET
   =============================================
   
   TABLE OF CONTENTS:
   ------------------
   1. CSS Variables / Custom Properties
   2. Reset & Base Styles
   3. Typography
   4. Layout & Container
   5. Buttons
   6. Preloader
   7. Navigation
   8. Hero Section
   9. About Section
   10. Services Section
   11. Why Choose Us Section
   12. Portfolio Section
   13. Testimonials Section
   14. CTA Section
   15. Contact Section
   16. Footer
   17. Scroll to Top Button
   18. Utility Classes
   
   ============================================= */

/* =============================================
   1. CSS VARIABLES / CUSTOM PROPERTIES
   ============================================= */
:root {
    /* Primary Colors */
    --primary-blue: #0052CC;
    --dark-blue: #0A1628;
    --cyan-accent: #00C8FF;
    --light-cyan: #E6F9FF;
    --navy: #1A2B4A;
    
    /* Neutral Colors */
    --white: #FFFFFF;
    --gray-100: #F5F7FA;
    --gray-200: #E8ECF1;
    --gray-300: #C5CDD8;
    --gray-600: #6B7A90;
    --gray-800: #2D3748;
    --black: #000000;
    
    /* Gradients */
    --gradient-blue: linear-gradient(135deg, #0052CC 0%, #00C8FF 100%);
    --gradient-dark: linear-gradient(135deg, #0A1628 0%, #1A2B4A 100%);
    --gradient-light: linear-gradient(135deg, #F5F7FA 0%, #E8ECF1 100%);
    
    /* Shadows */
    --shadow-sm: 0 2px 8px rgba(10, 22, 40, 0.08);
    --shadow-md: 0 4px 20px rgba(10, 22, 40, 0.12);
    --shadow-lg: 0 8px 40px rgba(10, 22, 40, 0.16);
    --shadow-xl: 0 16px 60px rgba(10, 22, 40, 0.2);
    
    /* Transitions */
    --transition-fast: all 0.2s ease;
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-slow: all 0.5s cubic-bezier(0.4, 0, 0.2, 1);
    
    /* Border Radius */
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 16px;
    --radius-xl: 20px;
    --radius-full: 50px;
    
    /* Font Families */
    --font-primary: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    --font-heading: 'Poppins', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    
    /* Font Sizes */
    --text-xs: 12px;
    --text-sm: 14px;
    --text-base: 16px;
    --text-lg: 18px;
    --text-xl: 20px;
    --text-2xl: 24px;
    --text-3xl: 32px;
    --text-4xl: 40px;
    --text-5xl: 48px;
    --text-6xl: 64px;
    
    /* Spacing */
    --space-xs: 4px;
    --space-sm: 8px;
    --space-md: 16px;
    --space-lg: 24px;
    --space-xl: 32px;
    --space-2xl: 48px;
    --space-3xl: 64px;
    --space-4xl: 80px;
    --space-5xl: 120px;
    
    /* Z-Index Scale */
    --z-dropdown: 100;
    --z-sticky: 200;
    --z-fixed: 300;
    --z-modal: 400;
    --z-popover: 500;
    --z-tooltip: 600;
    --z-preloader: 1000;
}

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

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

body {
    font-family: var(--font-primary);
    font-size: var(--text-base);
    font-weight: 400;
    line-height: 1.6;
    color: var(--gray-800);
    background-color: var(--white);
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

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

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

ul, ol {
    list-style: none;
}

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

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

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

h1 {
    font-size: clamp(var(--text-4xl), 5vw, var(--text-6xl));
}

h2 {
    font-size: clamp(var(--text-3xl), 4vw, var(--text-5xl));
}

h3 {
    font-size: clamp(var(--text-2xl), 3vw, var(--text-3xl));
}

h4 {
    font-size: var(--text-xl);
}

h5 {
    font-size: var(--text-lg);
}

h6 {
    font-size: var(--text-base);
}

p {
    margin-bottom: var(--space-md);
}

.highlight {
    background: var(--gradient-blue);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

/* =============================================
   4. LAYOUT & CONTAINER
   ============================================= */
.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--space-lg);
}

section {
    position: relative;
}

/* =============================================
   5. BUTTONS
   ============================================= */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-sm);
    padding: var(--space-md) var(--space-xl);
    border-radius: var(--radius-md);
    font-family: var(--font-primary);
    font-weight: 600;
    font-size: var(--text-base);
    text-decoration: none;
    transition: var(--transition);
    cursor: pointer;
    border: 2px solid transparent;
    white-space: nowrap;
}

.btn-primary {
    background: var(--gradient-blue);
    color: var(--white);
    box-shadow: 0 4px 20px rgba(0, 82, 204, 0.4);
}

.btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 30px rgba(0, 82, 204, 0.5);
}

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

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

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

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

/* =============================================
   6. PRELOADER
   ============================================= */
.preloader {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: var(--dark-blue);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: var(--z-preloader);
    transition: opacity 0.5s ease, visibility 0.5s ease;
}

.preloader.hidden {
    opacity: 0;
    visibility: hidden;
}

.preloader-inner {
    text-align: center;
}

.preloader-spinner {
    width: 60px;
    height: 60px;
    border: 3px solid rgba(0, 200, 255, 0.2);
    border-top-color: var(--cyan-accent);
    border-radius: 50%;
    animation: spin 1s linear infinite;
    margin: 0 auto var(--space-md);
}

.preloader-text {
    color: var(--gray-300);
    font-size: var(--text-sm);
}

@keyframes spin {
    to { transform: rotate(360deg); }
}

/* =============================================
   7. NAVIGATION
   ============================================= */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: var(--z-fixed);
    padding: var(--space-lg) 0;
    transition: var(--transition);
}

.navbar.scrolled {
    background: rgba(10, 22, 40, 0.95);
    backdrop-filter: blur(20px);
    padding: var(--space-sm) 0;
    box-shadow: var(--shadow-lg);
}

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

/* Logo */
.logo {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    text-decoration: none;
}

.logo-icon {
    width: 45px;
    height: 45px;
    background: var(--gradient-blue);
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: var(--text-xl);
    font-weight: 800;
    color: var(--white);
    position: relative;
    overflow: hidden;
}
.logo-icon::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: linear-gradient(45deg, transparent, rgba(255,255,255,0.1), transparent);
    transform: rotate(45deg);
    animation: logoShine 3s infinite;
}
@keyframes logoShine {
    0%, 100% { transform: translateX(-100%) rotate(45deg); }
    50% { transform: translateX(100%) rotate(45deg); }
}
.logo-text {
    font-family: var(--font-heading);
    font-weight: 700;
    font-size: var(--text-xl);
    color: var(--white);
}
.logo-text span {
    color: var(--cyan-accent);
}

/* Navigation Links */
.nav-links {
    display: flex;
    align-items: center;
    gap: var(--space-2xl);
    list-style: none;
}

.nav-links a {
    color: var(--white);
    text-decoration: none;
    font-weight: 500;
    font-size: var(--text-sm);
    position: relative;
    transition: var(--transition);
    padding: var(--space-xs) 0;
}

.nav-links a::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--cyan-accent);
    transition: var(--transition);
}

.nav-links a:hover,
.nav-links a.active {
    color: var(--cyan-accent);
}

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

/* Navigation CTA Button */
.nav-cta {
    background: var(--gradient-blue);
    color: var(--white) !important;
    padding: var(--space-sm) var(--space-lg) !important;
    border-radius: var(--radius-sm);
    font-weight: 600;
}

.nav-cta::after {
    display: none !important;
}

.nav-cta:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(0, 82, 204, 0.4);
}

/* Mobile Toggle */
.mobile-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    cursor: pointer;
    padding: var(--space-sm);
    z-index: var(--z-fixed);
}

.mobile-toggle span {
    width: 25px;
    height: 2px;
    background: var(--white);
    transition: var(--transition);
    transform-origin: center;
}

.mobile-toggle.active span:nth-child(1) {
    transform: rotate(45deg) translate(5px, 5px);
}

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

.mobile-toggle.active span:nth-child(3) {
    transform: rotate(-45deg) translate(5px, -5px);
}

/* =============================================
   8. HERO SECTION
   ============================================= */
.hero {
    min-height: 100vh;
    background: var(--gradient-dark);
    display: flex;
    align-items: center;
    position: relative;
    overflow: hidden;
    padding: var(--space-5xl) 0 var(--space-4xl);
}

/* Hero Background Elements */
.hero-background {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    overflow: hidden;
    pointer-events: none;
}

.hero-grid {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-image: 
        linear-gradient(rgba(0, 200, 255, 0.03) 1px, transparent 1px),
        linear-gradient(90deg, rgba(0, 200, 255, 0.03) 1px, transparent 1px);
    background-size: 60px 60px;
}

.hero-glow {
    position: absolute;
    width: 800px;
    height: 800px;
    background: radial-gradient(circle, rgba(0, 200, 255, 0.15) 0%, transparent 70%);
    top: -200px;
    right: -200px;
    animation: pulse 6s infinite ease-in-out;
}

.hero-glow-2 {
    position: absolute;
    width: 600px;
    height: 600px;
    background: radial-gradient(circle, rgba(0, 82, 204, 0.2) 0%, transparent 70%);
    bottom: -150px;
    left: -150px;
    animation: pulse 8s infinite ease-in-out reverse;
}

@keyframes pulse {
    0%, 100% { transform: scale(1); opacity: 1; }
    50% { transform: scale(1.1); opacity: 0.7; }
}

/* Hero Particles */
.hero-particles {
    position: absolute;
    width: 100%;
    height: 100%;
}

.particle {
    position: absolute;
    width: 4px;
    height: 4px;
    background: var(--cyan-accent);
    border-radius: 50%;
    opacity: 0.3;
    animation: float 8s infinite ease-in-out;
}

@keyframes float {
    0%, 100% { 
        transform: translateY(0) translateX(0); 
        opacity: 0.3; 
    }
    50% { 
        transform: translateY(-30px) translateX(15px); 
        opacity: 0.8; 
    }
}

/* Hero Content */
.hero-content {
    position: relative;
    z-index: 10;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-3xl);
    align-items: center;
}

/* Hero Text */
.hero-text {
    color: var(--white);
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: var(--space-sm);
    background: rgba(0, 200, 255, 0.1);
    border: 1px solid rgba(0, 200, 255, 0.3);
    padding: var(--space-sm) var(--space-lg);
    border-radius: var(--radius-full);
    font-size: var(--text-sm);
    font-weight: 500;
    color: var(--cyan-accent);
    margin-bottom: var(--space-lg);
    animation: fadeInUp 0.8s ease;
}

.hero-badge i {
    font-size: 8px;
    animation: blink 2s infinite;
}

@keyframes blink {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.3; }
}

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

.hero h1 {
    color: var(--white);
    margin-bottom: var(--space-lg);
    animation: fadeInUp 0.8s ease 0.1s both;
}

.hero-description {
    font-size: var(--text-lg);
    color: var(--gray-300);
    margin-bottom: var(--space-2xl);
    line-height: 1.8;
    max-width: 540px;
    animation: fadeInUp 0.8s ease 0.2s both;
}

.hero-buttons {
    display: flex;
    gap: var(--space-md);
    flex-wrap: wrap;
    animation: fadeInUp 0.8s ease 0.3s both;
}

/* Hero Stats */
.hero-stats {
    display: flex;
    gap: var(--space-2xl);
    margin-top: var(--space-3xl);
    animation: fadeInUp 0.8s ease 0.4s both;
}

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

.stat-number {
    font-size: var(--text-4xl);
    font-weight: 800;
    color: var(--cyan-accent);
    display: inline;
}

.stat-suffix {
    font-size: var(--text-3xl);
    font-weight: 700;
    color: var(--cyan-accent);
}

.stat-label {
    font-size: var(--text-sm);
    color: var(--gray-300);
    margin-top: var(--space-xs);
    display: block;
}

/* Hero Visual */
.hero-visual {
    position: relative;
    animation: fadeInUp 0.8s ease 0.5s both;
}

.hero-image-container {
    position: relative;
    padding: var(--space-lg);
}

/* Code Window */
.code-window {
    background: rgba(26, 43, 74, 0.9);
    backdrop-filter: blur(10px);
    border-radius: var(--radius-lg);
    border: 1px solid rgba(0, 200, 255, 0.2);
    padding: var(--space-lg);
    position: relative;
    box-shadow: var(--shadow-xl);
}

.code-header {
    display: flex;
    gap: var(--space-sm);
    margin-bottom: var(--space-md);
}

.code-dot {
    width: 12px;
    height: 12px;
    border-radius: 50%;
}

.code-dot.red { background: #FF5F57; }
.code-dot.yellow { background: #FFBD2E; }
.code-dot.green { background: #28CA41; }

.code-content {
    font-family: 'Fira Code', 'Courier New', monospace;
    font-size: var(--text-sm);
    line-height: 1.8;
    color: var(--gray-300);
}

.code-line {
    margin-bottom: var(--space-xs);
    opacity: 0;
    animation: fadeIn 0.5s ease forwards;
}

.code-keyword { color: #C792EA; }
.code-function { color: #82AAFF; }
.code-string { color: #C3E88D; }
.code-comment { color: #546E7A; }
.code-variable { color: var(--cyan-accent); }

.typing-cursor {
    display: inline-block;
    width: 10px;
    height: 18px;
    background: var(--cyan-accent);
    animation: blink 1s infinite;
    vertical-align: middle;
}

/* Floating Cards */
.floating-card {
    position: absolute;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    border-radius: var(--radius-md);
    padding: var(--space-md) var(--space-lg);
    box-shadow: var(--shadow-lg);
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    animation: floatCard 4s infinite ease-in-out;
    z-index: 10;
}

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

.floating-card-1 {
    top: 20px;
    right: -30px;
    animation-delay: 0s;
}

.floating-card-2 {
    bottom: 60px;
    left: -20px;
    animation-delay: 1s;
}

.floating-card-icon {
    width: 44px;
    height: 44px;
    background: var(--gradient-blue);
    border-radius: var(--radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--white);
    font-size: var(--text-lg);
}

.floating-card-text h4 {
    font-size: var(--text-sm);
    font-weight: 600;
    color: var(--gray-800);
    margin-bottom: 2px;
}

.floating-card-text p {
    font-size: var(--text-xs);
    color: var(--gray-600);
    margin-bottom: 0;
}

/* =============================================
   9. ABOUT SECTION
   ============================================= */
.about {
    padding: var(--space-5xl) 0;
    background: var(--white);
    position: relative;
}

/* Section Header (Reusable) */
.section-header {
    text-align: center;
    max-width: 700px;
    margin: 0 auto var(--space-3xl);
}

.section-tag {
    display: inline-flex;
    align-items: center;
    gap: var(--space-sm);
    background: var(--light-cyan);
    color: var(--primary-blue);
    padding: var(--space-sm) var(--space-lg);
    border-radius: var(--radius-full);
    font-size: var(--text-sm);
    font-weight: 600;
    margin-bottom: var(--space-md);
}

.section-title {
    margin-bottom: var(--space-lg);
}

.section-subtitle {
    font-size: var(--text-lg);
    color: var(--gray-600);
    line-height: 1.7;
    margin-bottom: 0;
}

/* About Content */
.about-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-4xl);
    align-items: center;
}

/* About Image */
.about-image {
    position: relative;
}

.about-img-wrapper {
    position: relative;
    border-radius: var(--radius-xl);
    overflow: hidden;
}

.about-img-main {
    width: 100%;
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-xl);
}

.about-img-fallback {
    width: 100%;
    border-radius: var(--radius-xl);
}

.about-img-overlay {
    position: absolute;
    bottom: -30px;
    right: -30px;
    width: 200px;
    background: var(--gradient-blue);
    border-radius: var(--radius-lg);
    padding: var(--space-lg);
    color: var(--white);
    box-shadow: var(--shadow-lg);
    text-align: center;
}

.about-img-overlay h3 {
    font-size: 36px;
    margin-bottom: var(--space-xs);
    color: var(--white);
}

.about-img-overlay p {
    font-size: var(--text-sm);
    opacity: 0.9;
    margin-bottom: 0;
}

/* About Text */
.about-text h3 {
    font-size: var(--text-2xl);
    margin-bottom: var(--space-lg);
}

.about-text p {
    color: var(--gray-600);
    margin-bottom: var(--space-lg);
    line-height: 1.8;
}

/* Vision & Mission Cards */
.vision-mission {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-lg);
    margin-top: var(--space-2xl);
}

.vm-card {
    padding: var(--space-lg);
    border-radius: var(--radius-lg);
    border: 1px solid var(--gray-200);
    transition: var(--transition);
}

.vm-card:hover {
    border-color: var(--cyan-accent);
    box-shadow: var(--shadow-md);
}

.vm-card-icon {
    width: 56px;
    height: 56px;
    background: var(--light-cyan);
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--primary-blue);
    font-size: var(--text-2xl);
    margin-bottom: var(--space-md);
}

.vm-card h4 {
    font-size: var(--text-xl);
    margin-bottom: var(--space-sm);
}

.vm-card p {
    font-size: var(--text-sm);
    color: var(--gray-600);
    line-height: 1.7;
    margin-bottom: 0;
}

/* =============================================
   10. SERVICES SECTION
   ============================================= */
.services {
    padding: var(--space-5xl) 0;
    background: var(--gray-100);
    position: relative;
}

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

.service-card {
    background: var(--white);
    padding: var(--space-2xl) var(--space-xl);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-sm);
    transition: var(--transition);
    position: relative;
    overflow: hidden;
    border: 1px solid transparent;
}

.service-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 4px;
    background: var(--gradient-blue);
    transform: scaleX(0);
    transition: var(--transition);
}

.service-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-lg);
    border-color: rgba(0, 200, 255, 0.2);
}

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

.service-icon {
    width: 72px;
    height: 72px;
    background: var(--light-cyan);
    border-radius: var(--radius-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 32px;
    color: var(--primary-blue);
    margin-bottom: var(--space-lg);
    transition: var(--transition);
}

.service-card:hover .service-icon {
    background: var(--gradient-blue);
    color: var(--white);
    transform: scale(1.05);
}

.service-card h3 {
    font-size: var(--text-xl);
    margin-bottom: var(--space-md);
}

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

.service-link {
    display: inline-flex;
    align-items: center;
    gap: var(--space-sm);
    color: var(--primary-blue);
    font-weight: 600;
    font-size: var(--text-sm);
    transition: var(--transition);
}

.service-link i {
    transition: var(--transition);
}

.service-link:hover {
    color: var(--cyan-accent);
}

.service-link:hover i {
    transform: translateX(5px);
}

/* =============================================
   11. WHY CHOOSE US SECTION
   ============================================= */
.why-us {
    padding: var(--space-5xl) 0;
    background: var(--gradient-dark);
    position: relative;
    overflow: hidden;
}

.why-us .section-tag {
    background: rgba(0, 200, 255, 0.15);
    color: var(--cyan-accent);
}

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

.why-us .section-subtitle {
    color: var(--gray-300);
}

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

.why-card {
    background: rgba(255, 255, 255, 0.05);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.1);
    padding: var(--space-2xl) var(--space-lg);
    border-radius: var(--radius-xl);
    text-align: center;
    transition: var(--transition);
}

.why-card:hover {
    background: rgba(255, 255, 255, 0.1);
    border-color: var(--cyan-accent);
    transform: translateY(-8px);
}

.why-icon {
    width: 80px;
    height: 80px;
    background: var(--gradient-blue);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 32px;
    color: var(--white);
    margin: 0 auto var(--space-lg);
    position: relative;
}

.why-icon::before {
    content: '';
    position: absolute;
    width: 100%;
    height: 100%;
    border-radius: 50%;
    border: 2px solid var(--cyan-accent);
    opacity: 0.3;
    animation: ripple 2s infinite;
}

@keyframes ripple {
    0% { transform: scale(1); opacity: 0.3; }
    100% { transform: scale(1.5); opacity: 0; }
}

.why-card h3 {
    font-size: var(--text-xl);
    color: var(--white);
    margin-bottom: var(--space-sm);
}

.why-card p {
    font-size: var(--text-sm);
    color: var(--gray-300);
    line-height: 1.7;
    margin-bottom: 0;
}

/* =============================================
   12. PORTFOLIO SECTION
   ============================================= */
.portfolio {
    padding: var(--space-5xl) 0;
    background: var(--white);
}

.portfolio-filters {
    display: flex;
    justify-content: center;
    gap: var(--space-sm);
    margin-bottom: var(--space-2xl);
    flex-wrap: wrap;
}

.filter-btn {
    padding: var(--space-sm) var(--space-lg);
    border: 2px solid var(--gray-200);
    background: transparent;
    border-radius: var(--radius-full);
    font-size: var(--text-sm);
    font-weight: 600;
    color: var(--gray-600);
    cursor: pointer;
    transition: var(--transition);
}

.filter-btn:hover,
.filter-btn.active {
    background: var(--primary-blue);
    border-color: var(--primary-blue);
    color: var(--white);
}

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

.portfolio-item {
    position: relative;
    border-radius: var(--radius-xl);
    overflow: hidden;
    cursor: pointer;
}

.portfolio-image {
    width: 100%;
    height: 300px;
    object-fit: cover;
    transition: var(--transition);
}

.portfolio-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(to top, rgba(10, 22, 40, 0.95) 0%, transparent 100%);
    display: flex;
    flex-direction: column;
    justify-content: flex-end;
    padding: var(--space-xl);
    opacity: 0;
    transition: var(--transition);
}

.portfolio-item:hover .portfolio-image {
    transform: scale(1.1);
}

.portfolio-item:hover .portfolio-overlay {
    opacity: 1;
}

.portfolio-category {
    font-size: var(--text-xs);
    color: var(--cyan-accent);
    font-weight: 600;
    margin-bottom: var(--space-sm);
    text-transform: uppercase;
    letter-spacing: 1px;
}

.portfolio-title {
    font-size: var(--text-xl);
    color: var(--white);
    margin-bottom: var(--space-sm);
}

.portfolio-desc {
    font-size: var(--text-sm);
    color: var(--gray-300);
    line-height: 1.6;
    margin-bottom: var(--space-md);
}

.portfolio-link {
    display: inline-flex;
    align-items: center;
    gap: var(--space-sm);
    color: var(--cyan-accent);
    font-weight: 600;
    font-size: var(--text-sm);
}

.portfolio-cta {
    text-align: center;
    margin-top: var(--space-2xl);
}

/* =============================================
   13. TESTIMONIALS SECTION
   ============================================= */
.testimonials {
    padding: var(--space-5xl) 0;
    background: var(--gray-100);
}

.testimonials-slider {
    position: relative;
    max-width: 900px;
    margin: 0 auto;
    overflow: hidden;
}

.testimonials-track {
    display: flex;
    transition: transform 0.5s ease;
}

.testimonial-item {
    min-width: 100%;
    padding: 0 var(--space-lg);
}

.testimonial-card {
    background: var(--white);
    padding: var(--space-2xl) var(--space-3xl);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-md);
    text-align: center;
    position: relative;
}

.testimonial-quote {
    position: absolute;
    top: var(--space-lg);
    left: var(--space-2xl);
    font-size: 80px;
    color: var(--light-cyan);
    font-family: Georgia, serif;
    line-height: 1;
}

.testimonial-stars {
    display: flex;
    gap: var(--space-xs);
    justify-content: center;
    margin-bottom: var(--space-lg);
}

.testimonial-stars i {
    color: #FFB800;
    font-size: var(--text-lg);
}

.testimonial-text {
    font-size: var(--text-lg);
    color: var(--gray-600);
    line-height: 1.8;
    margin-bottom: var(--space-xl);
    font-style: italic;
    position: relative;
    z-index: 1;
}

.testimonial-author {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-md);
}

.testimonial-avatar {
    width: 64px;
    height: 64px;
    border-radius: 50%;
    object-fit: cover;
    border: 3px solid var(--cyan-accent);
}

.testimonial-info h4 {
    font-size: var(--text-lg);
    margin-bottom: var(--space-xs);
}

.testimonial-info p {
    font-size: var(--text-sm);
    color: var(--gray-600);
    margin-bottom: 0;
}

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

.testimonial-dot {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    background: var(--gray-300);
    cursor: pointer;
    transition: var(--transition);
}

.testimonial-dot.active {
    background: var(--primary-blue);
    transform: scale(1.2);
}

/* =============================================
   14. CTA SECTION
   ============================================= */
.cta {
    padding: var(--space-4xl) 0;
    background: var(--gradient-dark);
    position: relative;
    overflow: hidden;
}

.cta-content {
    text-align: center;
    position: relative;
    z-index: 10;
}

.cta h2 {
    color: var(--white);
    margin-bottom: var(--space-lg);
}

.cta p {
    font-size: var(--text-lg);
    color: var(--gray-300);
    max-width: 600px;
    margin: 0 auto var(--space-2xl);
}

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

/* =============================================
   15. CONTACT SECTION
   ============================================= */
.contact {
    padding: var(--space-5xl) 0;
    background: var(--white);
}

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

/* Contact Info */
.contact-info h3 {
    font-size: var(--text-3xl);
    margin-bottom: var(--space-lg);
}

.contact-info > p {
    color: var(--gray-600);
    margin-bottom: var(--space-2xl);
    line-height: 1.8;
}

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

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

.contact-item-icon {
    width: 56px;
    height: 56px;
    background: var(--light-cyan);
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--primary-blue);
    font-size: var(--text-xl);
    flex-shrink: 0;
}

.contact-item-text h4 {
    font-size: var(--text-lg);
    margin-bottom: var(--space-xs);
}

.contact-item-text p,
.contact-item-text a {
    color: var(--gray-600);
    text-decoration: none;
    font-size: var(--text-sm);
    line-height: 1.6;
    display: block;
    margin-bottom: 2px;
}

.contact-item-text a:hover {
    color: var(--primary-blue);
}

/* Contact Form */
.contact-form-wrapper {
    background: var(--gray-100);
    padding: var(--space-2xl);
    border-radius: var(--radius-xl);
}

.contact-form h3 {
    font-size: var(--text-2xl);
    margin-bottom: var(--space-xl);
}

.form-group {
    margin-bottom: var(--space-lg);
}

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

.form-group label {
    display: block;
    font-size: var(--text-sm);
    font-weight: 600;
    color: var(--gray-800);
    margin-bottom: var(--space-sm);
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: var(--space-md) var(--space-lg);
    border: 2px solid var(--gray-200);
    border-radius: var(--radius-md);
    font-size: var(--text-sm);
    font-family: inherit;
    transition: var(--transition);
    background: var(--white);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary-blue);
    box-shadow: 0 0 0 4px rgba(0, 82, 204, 0.1);
}

.form-group textarea {
    min-height: 140px;
    resize: vertical;
}

.form-submit {
    width: 100%;
    padding: var(--space-md) var(--space-xl);
    background: var(--gradient-blue);
    color: var(--white);
    border: none;
    border-radius: var(--radius-md);
    font-size: var(--text-base);
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-sm);
}

.form-submit:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 30px rgba(0, 82, 204, 0.4);
}

/* =============================================
   16. FOOTER
   ============================================= */
.footer {
    background: var(--dark-blue);
    padding: var(--space-4xl) 0 0;
}

.footer-content {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: var(--space-3xl);
    padding-bottom: var(--space-3xl);
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

/* Footer Brand */
.footer-brand .logo {
    margin-bottom: var(--space-lg);
}

.footer-brand p {
    color: var(--gray-300);
    line-height: 1.8;
    margin-bottom: var(--space-xl);
    max-width: 320px;
}

.footer-social {
    display: flex;
    gap: var(--space-sm);
}

.footer-social a {
    width: 44px;
    height: 44px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--white);
    font-size: var(--text-lg);
    transition: var(--transition);
}

.footer-social a:hover {
    background: var(--gradient-blue);
    transform: translateY(-3px);
}

/* Footer Columns */
.footer-column h4 {
    font-size: var(--text-lg);
    color: var(--white);
    margin-bottom: var(--space-lg);
}

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

.footer-links a {
    color: var(--gray-300);
    font-size: var(--text-sm);
    transition: var(--transition);
    display: inline-flex;
    align-items: center;
    gap: var(--space-sm);
}

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

/* Footer Bottom */
.footer-bottom {
    padding: var(--space-xl) 0;
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: var(--space-lg);
}

.footer-bottom p {
    color: var(--gray-300);
    font-size: var(--text-sm);
    margin-bottom: 0;
}

.footer-bottom a {
    color: var(--cyan-accent);
}

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

.footer-legal a {
    color: var(--gray-300);
    font-size: var(--text-sm);
    transition: var(--transition);
}

.footer-legal a:hover {
    color: var(--cyan-accent);
}

/* =============================================
   17. SCROLL TO TOP BUTTON
   ============================================= */
.scroll-top {
    position: fixed;
    bottom: 30px;
    right: 30px;
    width: 50px;
    height: 50px;
    background: var(--gradient-blue);
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--white);
    font-size: var(--text-xl);
    cursor: pointer;
    opacity: 0;
    visibility: hidden;
    transition: var(--transition);
    box-shadow: var(--shadow-lg);
    z-index: var(--z-fixed);
    border: none;
}

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

.scroll-top:hover {
    transform: translateY(-5px);
}

/* =============================================
   18. UTILITY CLASSES
   ============================================= */
.text-center { text-align: center; }
.text-left { text-align: left; }
.text-right { text-align: right; }

.mt-1 { margin-top: var(--space-sm); }
.mt-2 { margin-top: var(--space-md); }
.mt-3 { margin-top: var(--space-lg); }
.mt-4 { margin-top: var(--space-xl); }
.mt-5 { margin-top: var(--space-2xl); }

.mb-1 { margin-bottom: var(--space-sm); }
.mb-2 { margin-bottom: var(--space-md); }
.mb-3 { margin-bottom: var(--space-lg); }
.mb-4 { margin-bottom: var(--space-xl); }
.mb-5 { margin-bottom: var(--space-2xl); }

.hidden { display: none; }
.visible { display: block; }