/* ============================================
   CSS VARIABLES - Theme Colors & Typography
   ============================================ */
:root {
    /* Primary Colors */
    --color-primary: #2563eb;
    --color-primary-dark: #1e40af;
    --color-primary-light: #3b82f6;
    
    /* Secondary Colors */
    --color-secondary: #7c3aed;
    --color-secondary-dark: #6d28d9;
    
    /* Accent Colors */
    --color-accent: #10b981;
    --color-accent-dark: #059669;
    
    /* Neutral Colors */
    --color-text: #1f2937;
    --color-text-light: #6b7280;
    --color-text-lighter: #9ca3af;
    --color-bg: #ffffff;
    --color-bg-light: #f9fafb;
    --color-bg-dark: #111827;
    --color-border: #e5e7eb;
    
    /* Typography */
    --font-primary: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    --font-heading: 'Poppins', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    
    /* Spacing */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 1.5rem;
    --spacing-lg: 2rem;
    --spacing-xl: 3rem;
    --spacing-2xl: 4rem;
    
    /* Border Radius */
    --radius-sm: 0.375rem;
    --radius-md: 0.5rem;
    --radius-lg: 0.75rem;
    --radius-xl: 1rem;
    
    /* Shadows */
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1);
    
    /* Transitions */
    --transition-fast: 150ms ease;
    --transition-base: 300ms ease;
    --transition-slow: 500ms ease;
    
    /* Container */
    --container-max-width: 1200px;
    --container-padding: 1rem;
}

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

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

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

/* ============================================
   UTILITY CLASSES
   ============================================ */
.container {
    max-width: var(--container-max-width);
    margin: 0 auto;
    padding: 0 var(--container-padding);
}

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

.section-header-icon {
    margin-bottom: var(--spacing-md);
    display: flex;
    justify-content: center;
}

.section-icon-svg {
    width: 80px;
    height: 80px;
    opacity: 0.9;
    transition: transform var(--transition-base);
}

.section-header:hover .section-icon-svg {
    transform: scale(1.1) rotate(5deg);
}

.section-title {
    font-family: var(--font-heading);
    font-size: clamp(2rem, 5vw, 3rem);
    font-weight: 700;
    color: var(--color-text);
    margin-bottom: var(--spacing-sm);
    line-height: 1.2;
}

.section-subtitle {
    font-size: clamp(1rem, 2vw, 1.25rem);
    color: var(--color-text-light);
    max-width: 600px;
    margin: 0 auto;
}

/* Section Vector Backgrounds */
.section-vector-bg {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 0;
    pointer-events: none;
    overflow: hidden;
}

.section-vector-bg-svg {
    width: 100%;
    height: 100%;
    position: absolute;
    top: 0;
    left: 0;
}

.services,
.tech-stack,
.why-choose-us {
    position: relative;
    z-index: 1;
}

.services .container,
.tech-stack .container,
.why-choose-us .container {
    position: relative;
    z-index: 2;
}

/* ============================================
   HEADER / NAVIGATION
   ============================================ */
.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background-color: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    box-shadow: var(--shadow-sm);
    transition: all var(--transition-base);
}

.header.scrolled {
    box-shadow: var(--shadow-md);
}

.nav {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--spacing-md) var(--container-padding);
    height: 70px;
}

.nav-left,
.nav-right {
    display: flex;
    gap: var(--spacing-lg);
    align-items: center;
}

.nav-logo {
    flex: 1;
    text-align: center;
}

.logo-link {
    font-family: var(--font-heading);
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--color-primary);
    text-decoration: none;
    transition: color var(--transition-fast);
    display: inline-flex;
    align-items: center;
    gap: 2px;
}

.logo-link:hover {
    color: var(--color-primary-dark);
}

.logo-text {
    display: inline-block;
}

.bracket {
    display: inline-block;
    font-weight: 800;
    color: var(--color-primary);
    animation: bracket-animate 1.5s ease-in-out infinite;
}

.bracket-open {
    animation-name: bracket-open-animate;
    transform-origin: right center;
}

.bracket-close {
    animation-name: bracket-close-animate;
    transform-origin: left center;
}

@keyframes bracket-open-animate {
    0%, 100% {
        transform: rotate(0deg) scale(1);
        opacity: 1;
    }
    25% {
        transform: rotate(-10deg) scale(1.1);
        opacity: 0.9;
    }
    50% {
        transform: rotate(0deg) scale(1);
        opacity: 1;
    }
    75% {
        transform: rotate(5deg) scale(0.95);
        opacity: 0.95;
    }
}

@keyframes bracket-close-animate {
    0%, 100% {
        transform: rotate(0deg) scale(1);
        opacity: 1;
    }
    25% {
        transform: rotate(10deg) scale(1.1);
        opacity: 0.9;
    }
    50% {
        transform: rotate(0deg) scale(1);
        opacity: 1;
    }
    75% {
        transform: rotate(-5deg) scale(0.95);
        opacity: 0.95;
    }
}

.nav-link {
    font-weight: 500;
    color: var(--color-text);
    text-decoration: none;
    transition: color var(--transition-fast);
    position: relative;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 2px;
    background-color: var(--color-primary);
    transition: width var(--transition-base);
}

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

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

/* Mobile Menu Toggle */
.mobile-menu-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: var(--spacing-xs);
    z-index: 1001;
}

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

.mobile-menu-toggle.active span:nth-child(1) {
    transform: rotate(45deg) translate(8px, 8px);
}

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

.mobile-menu-toggle.active span:nth-child(3) {
    transform: rotate(-45deg) translate(7px, -7px);
}

/* Mobile Menu */
.mobile-menu {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background-color: var(--color-bg);
    box-shadow: var(--shadow-lg);
    padding: var(--spacing-lg);
    flex-direction: column;
    gap: var(--spacing-md);
    transform: translateY(-100%);
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition-base);
}

.mobile-menu.active {
    transform: translateY(0);
    opacity: 1;
    visibility: visible;
}

.mobile-nav-link {
    font-weight: 500;
    color: var(--color-text);
    text-decoration: none;
    padding: var(--spacing-sm);
    transition: color var(--transition-fast);
}

.mobile-nav-link:hover {
    color: var(--color-primary);
}

/* ============================================
   HERO SECTION
   ============================================ */
.hero {
    position: relative;
    width: 100%;
    height: 100vh;
    min-height: 600px;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
}

.hero-banner {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 0;
    background-image: 
        linear-gradient(135deg, rgba(37, 99, 235, 0.2) 0%, rgba(124, 58, 237, 0.2) 100%),
        url('https://images.unsplash.com/photo-1550751827-4bd374c3f58b?ixlib=rb-4.0.3&auto=format&fit=crop&w=2070&q=80');
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
    opacity: 0.2;
    filter: blur(1px);
}

/* Fallback if image doesn't load */
.hero-banner::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, rgba(37, 99, 235, 0.3) 0%, rgba(124, 58, 237, 0.3) 100%);
    z-index: -1;
}

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

.hero-overlay {
    position: relative;
    z-index: 2;
    width: 100%;
    height: 100%;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: var(--container-padding);
    background: linear-gradient(135deg, rgba(37, 99, 235, 0.1) 0%, rgba(124, 58, 237, 0.1) 100%);
}

.hero-content {
    text-align: center;
    max-width: 900px;
    margin-bottom: var(--spacing-2xl);
}

.hero-title {
    font-family: var(--font-heading);
    font-size: clamp(2.5rem, 6vw, 4.5rem);
    font-weight: 800;
    color: var(--color-text);
    margin-bottom: var(--spacing-md);
    line-height: 1.1;
    opacity: 0;
}

.hero-subtitle {
    font-size: clamp(1.125rem, 2.5vw, 1.5rem);
    color: var(--color-text-light);
    margin-bottom: var(--spacing-xl);
    opacity: 0;
}

.hero-buttons {
    display: flex;
    gap: var(--spacing-md);
    justify-content: center;
    flex-wrap: wrap;
    opacity: 0;
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: var(--spacing-md) var(--spacing-xl);
    font-size: 1rem;
    font-weight: 600;
    text-decoration: none;
    border-radius: var(--radius-lg);
    transition: all var(--transition-base);
    cursor: pointer;
    border: none;
    position: relative;
    overflow: hidden;
}

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

.btn-primary:hover {
    background-color: var(--color-primary-dark);
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

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

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

/* Scroll Indicator */
.scroll-indicator {
    position: absolute;
    bottom: var(--spacing-xl);
    left: 50%;
    transform: translateX(-50%);
    opacity: 0;
}

.scroll-arrow {
    width: 30px;
    height: 50px;
    border: 2px solid var(--color-primary);
    border-radius: 25px;
    position: relative;
}

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

@keyframes scroll-bounce {
    0%, 100% {
        transform: translateX(-50%) translateY(0);
        opacity: 1;
    }
    50% {
        transform: translateX(-50%) translateY(20px);
        opacity: 0.5;
    }
}

/* ============================================
   CAROUSEL SECTION
   ============================================ */
.carousel-section {
    padding: var(--spacing-xl) 0;
    background-color: var(--color-bg-light);
    overflow: hidden;
}

.carousel-container {
    position: relative;
    max-width: 100%;
    margin: 0 auto;
}

.carousel-track {
    display: flex;
    transition: transform 0.6s cubic-bezier(0.4, 0, 0.2, 1);
    will-change: transform;
}

.carousel-slide {
    min-width: 100%;
    padding: var(--spacing-xl) var(--container-padding);
    text-align: center;
}

.carousel-logos {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-lg);
    flex-wrap: wrap;
}

.tech-logo-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--spacing-xs);
    padding: var(--spacing-sm);
    transition: transform var(--transition-base);
}

.tech-logo-item:hover {
    transform: translateY(-5px);
}

.tech-logo {
    width: 60px;
    height: 60px;
    color: var(--color-primary);
    transition: all var(--transition-base);
    filter: drop-shadow(0 2px 4px rgba(0, 0, 0, 0.1));
}

.tech-logo-item:hover .tech-logo {
    color: var(--color-primary-dark);
    transform: scale(1.1);
}

.tech-logo-item span {
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--color-text);
    text-align: center;
}

.carousel-content h3 {
    font-family: var(--font-heading);
    font-size: clamp(1.75rem, 4vw, 2.5rem);
    font-weight: 700;
    color: var(--color-text);
    margin-bottom: var(--spacing-sm);
}

.carousel-content p {
    font-size: clamp(1rem, 2vw, 1.25rem);
    color: var(--color-text-light);
}

.carousel-btn {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    width: 50px;
    height: 50px;
    background-color: var(--color-bg);
    border: 2px solid var(--color-border);
    border-radius: 50%;
    font-size: 2rem;
    color: var(--color-text);
    cursor: pointer;
    transition: all var(--transition-base);
    z-index: 10;
    display: flex;
    align-items: center;
    justify-content: center;
}

.carousel-btn:hover {
    background-color: var(--color-primary);
    color: white;
    border-color: var(--color-primary);
    transform: translateY(-50%) scale(1.1);
}

.carousel-prev {
    left: var(--spacing-md);
}

.carousel-next {
    right: var(--spacing-md);
}

/* ============================================
   ABOUT SECTION
   ============================================ */
.about {
    padding: var(--spacing-2xl) 0;
    background-color: var(--color-bg);
}

.about-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-2xl);
    max-width: 1200px;
    margin: 0 auto;
    align-items: center;
}

.about-text {
    opacity: 1;
}

.about-image {
    display: flex;
    justify-content: center;
    align-items: center;
    opacity: 1;
}

.about-img {
    width: 100%;
    height: auto;
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-lg);
    transition: transform var(--transition-base);
    object-fit: cover;
}

.about-img:hover {
    transform: scale(1.02);
    box-shadow: var(--shadow-xl);
}

.about-description {
    font-size: 1.125rem;
    color: var(--color-text-light);
    margin-bottom: var(--spacing-md);
    line-height: 1.8;
}

.founder-card {
    background-color: var(--color-bg-light);
    border-radius: var(--radius-xl);
    padding: var(--spacing-xl);
    box-shadow: var(--shadow-md);
    opacity: 0;
    transition: transform var(--transition-base);
}

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

.founder-avatar {
    margin-bottom: var(--spacing-md);
}

.avatar-placeholder {
    width: 100px;
    height: 100px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--color-primary), var(--color-secondary));
    display: flex;
    align-items: center;
    justify-content: center;
    font-family: var(--font-heading);
    font-size: 2rem;
    font-weight: 700;
    color: white;
    margin: 0 auto;
}

.founder-name {
    font-family: var(--font-heading);
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--color-text);
    margin-bottom: var(--spacing-xs);
    text-align: center;
}

.founder-role {
    font-size: 1.125rem;
    color: var(--color-primary);
    font-weight: 600;
    margin-bottom: var(--spacing-xs);
    text-align: center;
}

.founder-experience {
    font-size: 1rem;
    color: var(--color-text-light);
    margin-bottom: var(--spacing-md);
    text-align: center;
}

.founder-bio {
    font-size: 1rem;
    color: var(--color-text-light);
    line-height: 1.8;
    text-align: center;
}

/* ============================================
   SERVICES SECTION
   ============================================ */
.services {
    padding: var(--spacing-2xl) 0;
    background-color: var(--color-bg-light);
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: var(--spacing-xl);
    max-width: 1200px;
    margin: 0 auto;
}

.service-card {
    background-color: var(--color-bg);
    border-radius: var(--radius-xl);
    padding: var(--spacing-xl);
    box-shadow: var(--shadow-md);
    text-align: center;
    transition: all var(--transition-base);
    opacity: 1;
    cursor: pointer;
}

.service-card:hover {
    transform: translateY(-10px);
    box-shadow: var(--shadow-xl);
}

.service-icon {
    font-size: 3rem;
    margin-bottom: var(--spacing-md);
}

.service-title {
    font-family: var(--font-heading);
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--color-text);
    margin-bottom: var(--spacing-sm);
}

.service-description {
    font-size: 1rem;
    color: var(--color-text-light);
    line-height: 1.7;
}

/* ============================================
   LEADERSHIP SECTION
   ============================================ */
.leadership {
    padding: var(--spacing-2xl) 0;
    background-color: var(--color-bg);
}

.leadership-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: var(--spacing-xl);
    max-width: 1200px;
    margin: 0 auto;
}

.leadership-card {
    background-color: var(--color-bg-light);
    border-radius: var(--radius-xl);
    padding: var(--spacing-xl);
    text-align: center;
    box-shadow: var(--shadow-md);
    transition: all var(--transition-base);
    opacity: 1;
}

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

.leadership-icon {
    font-size: 3rem;
    margin-bottom: var(--spacing-md);
}

.leadership-title {
    font-family: var(--font-heading);
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--color-text);
    margin-bottom: var(--spacing-sm);
}

.leadership-description {
    font-size: 1rem;
    color: var(--color-text-light);
    line-height: 1.7;
}

/* ============================================
   TECHNOLOGY STACK SECTION
   ============================================ */
.tech-stack {
    padding: var(--spacing-2xl) 0;
    background: linear-gradient(135deg, var(--color-bg) 0%, var(--color-bg-light) 100%);
    position: relative;
    overflow: hidden;
}

.tech-categories {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--spacing-xl);
    max-width: 1200px;
    margin: 0 auto;
}

.tech-category {
    background-color: var(--color-bg);
    border-radius: var(--radius-xl);
    padding: var(--spacing-xl);
    box-shadow: var(--shadow-md);
    transition: all var(--transition-base);
    opacity: 1;
    display: flex;
    flex-direction: column;
    align-items: center;
}

.tech-category:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-xl);
}

.tech-category-logo {
    width: 80px;
    height: 80px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: var(--spacing-md);
    background: linear-gradient(135deg, rgba(37, 99, 235, 0.1), rgba(124, 58, 237, 0.1));
    border-radius: var(--radius-lg);
    transition: all var(--transition-base);
}

.tech-category:hover .tech-category-logo {
    background: linear-gradient(135deg, rgba(37, 99, 235, 0.2), rgba(124, 58, 237, 0.2));
    transform: scale(1.1);
}

.tech-category-icon {
    width: 50px;
    height: 50px;
    object-fit: contain;
    transition: all var(--transition-base);
    filter: drop-shadow(0 2px 4px rgba(0, 0, 0, 0.1));
}

.tech-category:hover .tech-category-icon {
    transform: scale(1.1) rotate(5deg);
    filter: drop-shadow(0 4px 8px rgba(0, 0, 0, 0.2));
}

.tech-category-title {
    font-family: var(--font-heading);
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--color-primary);
    margin-bottom: var(--spacing-md);
    text-align: center;
}

.tech-tags {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-sm);
    justify-content: center;
    opacity: 1;
    visibility: visible;
}

.tech-tag {
    display: inline-block;
    padding: var(--spacing-xs) var(--spacing-md);
    background-color: var(--color-bg-light);
    color: var(--color-text);
    border: 2px solid var(--color-border);
    border-radius: var(--radius-md);
    font-size: 0.875rem;
    font-weight: 500;
    transition: all var(--transition-base);
    opacity: 1;
    visibility: visible;
}

.tech-tag:hover {
    background-color: var(--color-primary);
    color: white;
    border-color: var(--color-primary);
    transform: translateY(-2px);
}

/* ============================================
   WHY CHOOSE US SECTION
   ============================================ */
.why-choose-us {
    padding: var(--spacing-2xl) 0;
    background-color: var(--color-bg);
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--spacing-xl);
    max-width: 1200px;
    margin: 0 auto;
}

.feature-item {
    text-align: center;
    padding: var(--spacing-xl);
    opacity: 1;
    background-color: rgba(255, 255, 255, 0.7);
    backdrop-filter: blur(10px);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-md);
    transition: all var(--transition-base);
    border: 1px solid rgba(37, 99, 235, 0.1);
}

.feature-item:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-xl);
    background-color: rgba(255, 255, 255, 0.9);
    border-color: rgba(37, 99, 235, 0.2);
}

.feature-icon {
    font-size: 3.5rem;
    margin-bottom: var(--spacing-md);
    transition: transform var(--transition-base);
}

.feature-item:hover .feature-icon {
    transform: scale(1.1);
}

.feature-title {
    font-family: var(--font-heading);
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--color-text);
    margin-bottom: var(--spacing-sm);
}

.feature-description {
    font-size: 1rem;
    color: var(--color-text-light);
    line-height: 1.7;
}

/* ============================================
   IMPLEMENTATION APPROACH SECTION
   ============================================ */
.implementation {
    padding: var(--spacing-2xl) 0;
    background-color: var(--color-bg-light);
}

.implementation-steps {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--spacing-xl);
    max-width: 1200px;
    margin: 0 auto;
}

.step-item {
    background-color: var(--color-bg);
    border-radius: var(--radius-xl);
    padding: var(--spacing-xl);
    box-shadow: var(--shadow-md);
    text-align: center;
    transition: all var(--transition-base);
    opacity: 1;
    position: relative;
}

.step-item:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-xl);
}

.step-number {
    width: 60px;
    height: 60px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--color-primary), var(--color-secondary));
    color: white;
    font-family: var(--font-heading);
    font-size: 1.5rem;
    font-weight: 700;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto var(--spacing-md);
    box-shadow: var(--shadow-md);
}

.step-title {
    font-family: var(--font-heading);
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--color-text);
    margin-bottom: var(--spacing-sm);
}

.step-description {
    font-size: 1rem;
    color: var(--color-text-light);
    line-height: 1.7;
}

/* ============================================
   CONTACT SECTION
   ============================================ */
.contact {
    padding: var(--spacing-2xl) 0;
    background-color: var(--color-bg);
}

.contact-form {
    max-width: 700px;
    margin: 0 auto;
    opacity: 1;
}

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

.form-label {
    display: block;
    font-weight: 600;
    color: var(--color-text);
    margin-bottom: var(--spacing-xs);
    font-size: 0.95rem;
}

.form-input,
.form-textarea {
    width: 100%;
    padding: var(--spacing-md);
    font-family: var(--font-primary);
    font-size: 1rem;
    border: 2px solid var(--color-border);
    border-radius: var(--radius-md);
    background-color: var(--color-bg);
    color: var(--color-text);
    transition: all var(--transition-base);
}

.form-input:focus,
.form-textarea:focus {
    outline: none;
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
}

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

.form-error {
    display: block;
    color: #ef4444;
    font-size: 0.875rem;
    margin-top: var(--spacing-xs);
    min-height: 20px;
}

.form-message {
    margin-top: var(--spacing-md);
    padding: var(--spacing-md);
    border-radius: var(--radius-md);
    text-align: center;
    font-weight: 500;
    display: none;
}

.form-message.success {
    background-color: #d1fae5;
    color: #065f46;
    display: block;
}

.form-message.error {
    background-color: #fee2e2;
    color: #991b1b;
    display: block;
}

.btn-submit {
    width: 100%;
    position: relative;
}

.btn-loader {
    display: none;
    width: 20px;
    height: 20px;
    border: 3px solid rgba(255, 255, 255, 0.3);
    border-top-color: white;
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
    position: absolute;
}

.btn-submit.loading .btn-text {
    opacity: 0;
}

.btn-submit.loading .btn-loader {
    display: block;
}

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

/* ============================================
   FOOTER
   ============================================ */
.footer {
    background-color: var(--color-bg-dark);
    color: white;
    padding: var(--spacing-2xl) 0 var(--spacing-lg);
    position: relative;
}

.footer-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--spacing-lg);
    flex-wrap: wrap;
    gap: var(--spacing-lg);
}

.footer-logo {
    font-family: var(--font-heading);
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: var(--spacing-xs);
}

.footer-tagline {
    color: rgba(255, 255, 255, 0.7);
    font-size: 0.95rem;
    margin-bottom: var(--spacing-md);
}

.footer-contact {
    margin-top: var(--spacing-md);
}

.footer-email,
.footer-phone {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    margin-bottom: var(--spacing-xs);
    color: rgba(255, 255, 255, 0.7);
    font-size: 0.9rem;
}

.footer-email:last-of-type,
.footer-phone:last-of-type {
    margin-bottom: 0;
}

.contact-icon {
    flex-shrink: 0;
    color: rgba(255, 255, 255, 0.6);
}

.footer-email a,
.footer-phone a {
    color: rgba(255, 255, 255, 0.7);
    text-decoration: none;
    transition: color var(--transition-fast);
}

.footer-email a:hover,
.footer-phone a:hover {
    color: white;
    text-decoration: underline;
}

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

.social-link {
    color: rgba(255, 255, 255, 0.8);
    text-decoration: none;
    transition: all var(--transition-fast);
    font-weight: 600;
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.55rem 0.8rem;
    border-radius: 999px;
    border: 1px solid rgba(255, 255, 255, 0.12);
    background: rgba(255, 255, 255, 0.06);
    backdrop-filter: blur(10px);
}

.social-link:hover {
    color: white;
    border-color: rgba(255, 255, 255, 0.25);
    background: rgba(255, 255, 255, 0.10);
    transform: translateY(-1px);
}

.social-icon {
    flex: 0 0 auto;
    opacity: 0.95;
}

.social-label {
    font-size: 0.95rem;
    line-height: 1;
}

.social-link:focus-visible {
    outline: 2px solid rgba(37, 99, 235, 0.9);
    outline-offset: 2px;
}

.footer-bottom {
    text-align: center;
    padding-top: var(--spacing-lg);
    border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.footer-copyright {
    color: rgba(255, 255, 255, 0.6);
    font-size: 0.9rem;
}

/* Back to Top Button */
.back-to-top {
    position: fixed;
    bottom: var(--spacing-xl);
    right: var(--spacing-xl);
    width: 50px;
    height: 50px;
    background-color: var(--color-primary);
    color: white;
    border: none;
    border-radius: 50%;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: var(--shadow-lg);
    opacity: 0;
    visibility: hidden;
    transform: translateY(20px);
    transition: all var(--transition-base);
    z-index: 999;
}

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

.back-to-top:hover {
    background-color: var(--color-primary-dark);
    transform: translateY(-5px);
    box-shadow: var(--shadow-xl);
}

/* ============================================
   RESPONSIVE DESIGN - MOBILE FIRST
   ============================================ */

/* Tablet */
@media (max-width: 968px) {
    .nav-left,
    .nav-right {
        display: none;
    }
    
    .mobile-menu-toggle {
        display: flex;
    }
    
    .mobile-menu {
        display: flex;
    }
    
    .nav-logo {
        flex: 0;
    }
    
    .carousel-btn {
        width: 40px;
        height: 40px;
        font-size: 1.5rem;
    }
    
    .carousel-prev {
        left: var(--spacing-xs);
    }
    
    .carousel-next {
        right: var(--spacing-xs);
    }
    
    .about-content {
        grid-template-columns: 1fr;
        gap: var(--spacing-lg);
    }
    
    .about-image {
        order: -1;
        margin-bottom: var(--spacing-md);
    }
    
    .about-img {
        max-width: 100%;
    }
    
    .services-grid,
    .tech-grid,
    .features-grid,
    .leadership-grid,
    .tech-categories,
    .implementation-steps {
        grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    }
    
    .footer-content {
        flex-direction: column;
        text-align: center;
    }
}

/* Mobile */
@media (max-width: 640px) {
    :root {
        --container-padding: 1rem;
        --spacing-2xl: 3rem;
    }
    
    .hero {
        min-height: 500px;
    }
    
    .hero-buttons {
        flex-direction: column;
        width: 100%;
    }
    
    .btn {
        width: 100%;
    }
    
    .services-grid,
    .tech-grid,
    .features-grid,
    .leadership-grid,
    .tech-categories,
    .implementation-steps {
        grid-template-columns: 1fr;
    }
    
    .tech-tags {
        gap: var(--spacing-xs);
    }
    
    .tech-tag {
        font-size: 0.75rem;
        padding: var(--spacing-xs) var(--spacing-sm);
    }
    
    .back-to-top {
        bottom: var(--spacing-md);
        right: var(--spacing-md);
        width: 45px;
        height: 45px;
    }
    
    .section-title {
        font-size: 2rem;
    }
    
    .carousel-logos {
        gap: var(--spacing-sm);
    }
    
    .tech-logo {
        width: 45px;
        height: 45px;
    }
    
    .tech-logo-item span {
        font-size: 0.7rem;
    }
    
    .section-icon-svg {
        width: 60px;
        height: 60px;
    }
    
    .about-image-wrapper {
        margin-bottom: var(--spacing-md);
    }
    
    .section-vector {
        max-width: 280px;
    }
}

/* Large Screens */
@media (min-width: 1400px) {
    :root {
        --container-max-width: 1400px;
    }
}

/* ============================================
   ACCESSIBILITY
   ============================================ */
@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;
    }
}

/* Focus Styles */
*:focus-visible {
    outline: 2px solid var(--color-primary);
    outline-offset: 2px;
}

/* Skip Link */
.skip-link {
    position: absolute;
    top: -40px;
    left: 0;
    background: var(--color-primary);
    color: white;
    padding: var(--spacing-sm);
    text-decoration: none;
    z-index: 10000;
}

.skip-link:focus {
    top: 0;
}
/* ============================================
   VIDEOS PAGE STYLES
   ============================================ */

/* Videos Hero Section */
.videos-hero {
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-secondary) 100%);
    color: white;
    padding: 6rem var(--spacing-lg);
    text-align: center;
    min-height: 400px;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    overflow: hidden;
}

.videos-hero::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -10%;
    width: 600px;
    height: 600px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 50%;
    animation: float 6s ease-in-out infinite;
}

.videos-hero::after {
    content: '';
    position: absolute;
    bottom: -30%;
    left: -5%;
    width: 500px;
    height: 500px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 50%;
    animation: float 8s ease-in-out infinite reverse;
}

@keyframes float {
    0%, 100% {
        transform: translateY(0px);
    }
    50% {
        transform: translateY(30px);
    }
}

.videos-hero-content {
    position: relative;
    z-index: 1;
    max-width: 800px;
}

.videos-hero-title {
    font-size: clamp(2rem, 5vw, 3.5rem);
    font-weight: 800;
    margin-bottom: var(--spacing-md);
    font-family: var(--font-heading);
}

.videos-hero-subtitle {
    font-size: 1.125rem;
    margin-bottom: var(--spacing-lg);
    opacity: 0.95;
    line-height: 1.6;
}

/* Videos Section */
.videos-section {
    padding: 5rem var(--spacing-lg);
    background: var(--color-bg-light);
}

.section-title {
    font-size: clamp(1.5rem, 4vw, 2.5rem);
    font-weight: 700;
    text-align: center;
    margin-bottom: var(--spacing-md);
    color: var(--color-text);
    font-family: var(--font-heading);
}

.section-subtitle {
    font-size: 1.125rem;
    text-align: center;
    color: var(--color-text-light);
    margin-bottom: 3rem;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

/* Videos Grid */
.videos-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
    gap: 2rem;
    margin-bottom: 4rem;
}

.video-card {
    background: white;
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-md);
    transition: all 0.3s ease;
    cursor: pointer;
}

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

.video-container {
    width: 100%;
    padding-bottom: 56.25%;
    position: relative;
    background: #000;
    overflow: hidden;
}

.video-container iframe {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    border: none;
}

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

.video-title {
    font-size: 1rem;
    font-weight: 600;
    margin-bottom: var(--spacing-sm);
    color: var(--color-text);
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.video-channel {
    font-size: 0.875rem;
    color: var(--color-text-light);
    margin-bottom: var(--spacing-sm);
}

.video-date {
    font-size: 0.875rem;
    color: var(--color-text-lighter);
}

.video-placeholder {
    width: 100%;
    padding-bottom: 56.25%;
    position: relative;
    background: linear-gradient(135deg, #f3f4f6 0%, #e5e7eb 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 200px;
    color: var(--color-text-light);
    font-weight: 500;
}

/* YouTube Channel Section */
.youtube-channel-section {
    background: white;
    padding: 3rem;
    border-radius: var(--radius-lg);
    text-align: center;
    box-shadow: var(--shadow-md);
    margin-top: 3rem;
}

.youtube-channel-section h3 {
    font-size: 1.75rem;
    font-weight: 700;
    margin-bottom: var(--spacing-md);
    color: var(--color-text);
    font-family: var(--font-heading);
}

.youtube-channel-section p {
    font-size: 1.125rem;
    color: var(--color-text-light);
    margin-bottom: var(--spacing-lg);
    line-height: 1.6;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

.btn-large {
    padding: var(--spacing-md) 3rem;
    font-size: 1.125rem;
    font-weight: 600;
}

/* Video Categories Section */
.video-categories {
    padding: 5rem var(--spacing-lg);
    background: white;
}

.categories-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
}

.category-card {
    background: var(--color-bg-light);
    padding: 2rem;
    border-radius: var(--radius-lg);
    text-align: center;
    transition: all 0.3s ease;
    border: 2px solid transparent;
}

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

.category-icon {
    font-size: 3rem;
    margin-bottom: var(--spacing-md);
}

.category-card h3 {
    font-size: 1.25rem;
    font-weight: 600;
    margin-bottom: var(--spacing-sm);
    color: var(--color-text);
    font-family: var(--font-heading);
}

.category-card p {
    color: var(--color-text-light);
    font-size: 0.95rem;
    line-height: 1.6;
}

/* Responsive Videos Page */
@media (max-width: 768px) {
    .videos-hero {
        padding: 4rem var(--spacing-md);
        min-height: 300px;
    }

    .videos-hero::before {
        width: 400px;
        height: 400px;
        top: -40%;
        right: -20%;
    }

    .videos-hero::after {
        width: 300px;
        height: 300px;
        bottom: -20%;
        left: -15%;
    }

    .videos-section {
        padding: 3rem var(--spacing-md);
    }

    .videos-grid {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }

    .youtube-channel-section {
        padding: 2rem;
    }

    .categories-grid {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }

    .category-card {
        padding: 1.5rem;
    }

    .video-categories {
        padding: 3rem var(--spacing-md);
    }
}

/* ============================================
   TECH SKILLS FOR 2026 SECTION
   ============================================ */

.tech-skills-2026 {
    padding: 5rem var(--spacing-lg);
    background: linear-gradient(135deg, #f9fafb 0%, #f3f4f6 100%);
}

.tech-skills-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 2.5rem;
    margin-bottom: 4rem;
}

.tech-skill-group {
    background: white;
    padding: 2rem;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
    transition: all 0.3s ease;
}

.tech-skill-group:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-xl);
}

.skill-category-title {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--color-primary);
    margin-bottom: 1.25rem;
    font-family: var(--font-heading);
}

/* Tech Skills CTA */
.tech-skills-cta {
    background: white;
    padding: 3rem;
    border-radius: var(--radius-lg);
    text-align: center;
    box-shadow: var(--shadow-md);
    border-left: 5px solid var(--color-primary);
}

.tech-skills-cta h3 {
    font-size: 1.75rem;
    font-weight: 700;
    color: var(--color-text);
    margin-bottom: var(--spacing-md);
    font-family: var(--font-heading);
}

.tech-skills-cta p {
    font-size: 1.125rem;
    color: var(--color-text-light);
    margin-bottom: var(--spacing-lg);
    line-height: 1.6;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

/* Responsive Tech Skills Section */
@media (max-width: 768px) {
    .tech-skills-2026 {
        padding: 3rem var(--spacing-md);
    }

    .tech-skills-grid {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }

    .tech-skill-group {
        padding: 1.5rem;
    }

    .skill-category-title {
        font-size: 1.1rem;
        margin-bottom: 1rem;
    }

    .tech-tag {
        font-size: 0.8rem;
        padding: 0.4rem 0.8rem;
    }

    .tech-skills-cta {
        padding: 2rem;
    }

    .tech-skills-cta h3 {
        font-size: 1.4rem;
    }

    .tech-skills-cta p {
        font-size: 1rem;
    }
}