/* ===== CSS Variables ===== */
:root {
    /* Light Theme Colors */
    --bg-primary: #ffffff;
    --bg-secondary: #f8f9fa;
    --bg-tertiary: #f1f3f5;
    --text-primary: #1a1a1a;
    --text-secondary: #4a5568;
    --text-tertiary: #718096;
    --border-color: #e2e8f0;
    --accent-color: #87C5E6;
    --accent-hover: #87C5E6;
    --gradient-start: #87C5E6;
    --gradient-end: #87C5E6;
    --card-bg: #ffffff;
    --card-shadow: rgba(0, 0, 0, 0.1);
    --overlay-bg: rgba(0, 0, 0, 0.85);
    
    /* Spacing */
    --spacing-xs: 0.25rem;
    --spacing-sm: 0.5rem;
    --spacing-md: 1rem;
    --spacing-lg: 1.5rem;
    --spacing-xl: 2rem;
    --spacing-2xl: 3rem;
    --spacing-3xl: 4rem;
    
    /* Typography */
    --font-primary: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    --font-size-xs: 0.875rem;
    --font-size-sm: 0.925rem;
    --font-size-base: 1rem;
    --font-size-lg: 1.125rem;
    --font-size-xl: 1.25rem;
    --font-size-2xl: 1.5rem;
    --font-size-3xl: 2rem;
    --font-size-4xl: 2.5rem;
    --font-size-5xl: 3rem;
    
    /* Transitions */
    --transition-base: 0.3s ease;
    --transition-slow: 0.5s ease;
    
    /* Border Radius */
    --radius-sm: 0.375rem;
    --radius-md: 0.5rem;
    --radius-lg: 0.75rem;
    --radius-xl: 1rem;
    --radius-full: 9999px;
}

/* Dark Theme */
[data-theme="dark"] {
    --bg-primary: #0a0a0a;
    --bg-secondary: #1a1a1a;
    --bg-tertiary: #2a2a2a;
    --text-primary: #f0f0f0;
    --text-secondary: #a0a0a0;
    --text-tertiary: #808080;
    --border-color: #3a3a3a;
    --accent-color: #87C5E6;
    --accent-hover: #87C5E6;
    --gradient-start: #87C5E6;
    --gradient-end: #87C5E6;
    --card-bg: #1a1a1a;
    --card-shadow: rgba(0, 0, 0, 0.4);
}

/* ===== Base Styles ===== */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
    background-color: #ffffff;
    background: #ffffff;
}

html[data-theme="dark"] {
    background-color: #0a0a0a;
    background: #0a0a0a;
}

body {
    font-family: var(--font-primary);
    font-size: var(--font-size-base);
    line-height: 1.6;
    color: var(--text-primary);
    background-color: var(--bg-primary);
    background: var(--bg-primary);
    overflow-x: hidden;
    transition: background-color var(--transition-base), color var(--transition-base);
    min-height: 100vh;
}

/* Prevent flash of unstyled content and browser blue transitions */
html, body {
    -webkit-tap-highlight-color: transparent;
    -webkit-touch-callout: none;
    -webkit-user-select: none;
    -moz-user-select: none;
    -ms-user-select: none;
    user-select: none;
    /* Force immediate background to prevent blue flash during navigation */
    background-color: #ffffff !important;
}

[data-theme="dark"] html,
[data-theme="dark"] body {
    background-color: #0a0a0a !important;
}

/* Page transition overlay to mask navigation flash */
.page-transition-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: #ffffff;
    z-index: 99999;
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.15s ease-in-out;
    pointer-events: none;
}

[data-theme="dark"] .page-transition-overlay {
    background-color: #0a0a0a;
}

.page-transition-overlay.active {
    opacity: 1;
    visibility: visible;
}

/* Reset any browser defaults that might cause blue flashes */
html, body, div, span, applet, object, iframe,
h1, h2, h3, h4, h5, h6, p, blockquote, pre,
a, abbr, acronym, address, big, cite, code,
del, dfn, em, img, ins, kbd, q, s, samp,
small, strike, strong, sub, sup, tt, var,
b, u, i, center,
dl, dt, dd, ol, ul, li,
fieldset, form, label, legend,
table, caption, tbody, tfoot, thead, tr, th, td,
article, aside, canvas, details, embed,
figure, figcaption, footer, header, hgroup,
menu, nav, output, ruby, section, summary,
time, mark, audio, video {
    background: transparent;
    border: 0;
    margin: 0;
    padding: 0;
    vertical-align: baseline;
}

/* Ensure text selection doesn't cause blue highlights */
::selection {
    background: var(--accent-color);
    color: white;
}

::-moz-selection {
    background: var(--accent-color);
    color: white;
}

/* ===== Typography ===== */
h1, h2, h3, h4, h5, h6 {
    font-weight: 600;
    line-height: 1.2;
    margin-bottom: var(--spacing-md);
}

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

p {
    margin-bottom: var(--spacing-md);
    color: var(--text-secondary);
}

a {
    color: var(--accent-color);
    text-decoration: none;
    transition: color var(--transition-base);
    background: transparent;
    outline: none;
    -webkit-tap-highlight-color: transparent;
}

a:hover {
    color: var(--accent-hover);
}

a:focus, a:active {
    outline: none;
    background: transparent;
    color: var(--accent-hover);
}

/* Remove blue highlight from clicked links */
a:visited {
    color: var(--accent-color);
}

/* Prevent any flash during navigation */
a, a:link, a:visited, a:hover, a:active {
    -webkit-tap-highlight-color: transparent;
    outline: none;
}

/* ===== Container ===== */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-xl);
}

/* ===== Navigation ===== */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background: var(--bg-primary);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    box-shadow: 0 1px 3px var(--card-shadow);
    z-index: 1000;
    transition: all var(--transition-base);
}

.navbar.scrolled {
    background: rgba(255, 255, 255, 0.95);
}

[data-theme="dark"] .navbar.scrolled {
    background: rgba(10, 10, 10, 0.95);
}

.nav-wrapper {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--spacing-lg) 0;
}

.logo {
    display: flex;
    align-items: center;
    font-size: var(--font-size-xl);
    font-weight: 700;
    color: var(--text-primary);
}

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

.logo-accent {
    color: var(--accent-color);
    margin-left: var(--spacing-xs);
}

.nav-menu {
    display: flex;
    align-items: center;
    list-style: none;
    gap: var(--spacing-2xl);
}

.nav-link {
    color: var(--text-secondary);
    font-weight: 500;
    position: relative;
    transition: color var(--transition-base);
}

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

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--accent-color);
    transition: width var(--transition-base);
}

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

/* Dropdown Menu */
.dropdown {
    position: relative;
}

.dropdown-menu {
    position: absolute;
    top: 100%;
    left: 0;
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: var(--spacing-sm) 0;
    min-width: 200px;
    opacity: 0;
    visibility: hidden;
    transform: translateY(-10px);
    transition: all var(--transition-base);
    box-shadow: 0 10px 30px var(--card-shadow);
    margin-top: var(--spacing-md);
    list-style: none;
}

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

.dropdown-menu li {
    padding: 0;
}

.dropdown-menu a {
    display: block;
    padding: var(--spacing-sm) var(--spacing-lg);
    color: var(--text-secondary);
    transition: all var(--transition-base);
}

.dropdown-menu a:hover {
    background: var(--bg-secondary);
    color: var(--accent-color);
}

/* Mobile Menu Button */
.mobile-menu-btn {
    display: none;
    flex-direction: column;
    gap: 4px;
    background: none;
    border: none;
    cursor: pointer;
    padding: var(--spacing-sm);
}

.mobile-menu-btn span {
    width: 25px;
    height: 2px;
    background: var(--text-primary);
    transition: all var(--transition-base);
}

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

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

.mobile-menu-btn.active span:nth-child(3) {
    transform: rotate(-45deg) translate(7px, -6px);
}

/* Theme Toggle */
.theme-toggle {
    background: var(--bg-tertiary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-full);
    width: 44px;
    height: 44px;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: all var(--transition-base);
    margin-left: var(--spacing-lg);
}

.theme-toggle:hover {
    background: var(--accent-color);
    border-color: var(--accent-color);
}

.theme-toggle svg {
    width: 20px;
    height: 20px;
    color: var(--text-primary);
}

.theme-toggle .moon-icon {
    display: none;
}

[data-theme="dark"] .theme-toggle .sun-icon {
    display: none;
}

[data-theme="dark"] .theme-toggle .moon-icon {
    display: block;
}

/* ===== Hero Section ===== */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    position: relative;
    padding-top: 80px;
    overflow: hidden;
}

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

.gradient-sphere {
    position: absolute;
    border-radius: 50%;
    filter: blur(100px);
    opacity: 0.3;
    animation: float 20s infinite;
}

.sphere-1 {
    width: 600px;
    height: 600px;
    background: linear-gradient(135deg, var(--gradient-start), var(--gradient-end));
    top: -200px;
    right: -100px;
}

.sphere-2 {
    width: 400px;
    height: 400px;
    background: linear-gradient(135deg, var(--gradient-end), var(--gradient-start));
    bottom: -100px;
    left: -100px;
    animation-delay: -10s;
}

.sphere-3 {
    width: 300px;
    height: 300px;
    background: linear-gradient(135deg, var(--accent-color), var(--gradient-end));
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    animation-delay: -5s;
}

.hero-content {
    text-align: center;
    padding: var(--spacing-3xl) 0;
}

.hero-title {
    font-size: clamp(2.5rem, 8vw, 5rem);
    font-weight: 800;
    line-height: 1.1;
    margin-bottom: var(--spacing-xl);
}

.gradient-text {
    background: linear-gradient(135deg, var(--gradient-start), var(--gradient-end));
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
}

.hero-subtitle {
    font-size: var(--font-size-xl);
    color: var(--text-secondary);
    max-width: 600px;
    margin: 0 auto var(--spacing-2xl);
}

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

/* ===== Buttons ===== */
.btn {
    display: inline-block;
    padding: var(--spacing-md) var(--spacing-2xl);
    border-radius: var(--radius-full);
    font-weight: 600;
    transition: all var(--transition-base);
    cursor: pointer;
    border: 2px solid transparent;
    text-align: center;
}

.btn-primary {
    background: linear-gradient(135deg, var(--gradient-start), var(--gradient-end));
    color: white;
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 30px rgba(99, 102, 241, 0.3);
}

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

.btn-outline:hover {
    border-color: var(--accent-color);
    color: var(--accent-color);
    background: rgba(99, 102, 241, 0.1);
}

.btn-large {
    padding: var(--spacing-lg) var(--spacing-3xl);
    font-size: var(--font-size-lg);
}

/* ===== Hero Stats ===== */
.hero-stats {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--spacing-2xl);
    max-width: 600px;
    margin: 0 auto;
}

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

.stat-number {
    font-size: var(--font-size-4xl);
    font-weight: 700;
    color: var(--accent-color);
    display: block;
}

.stat-label {
    font-size: var(--font-size-sm);
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 1px;
}

/* ===== Section Styles ===== */
section {
    padding: var(--spacing-3xl) 0;
}

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

.section-tag {
    display: inline-block;
    padding: var(--spacing-xs) var(--spacing-lg);
    background: rgba(99, 102, 241, 0.1);
    color: var(--accent-color);
    border-radius: var(--radius-full);
    font-size: var(--font-size-sm);
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-bottom: var(--spacing-md);
}

.section-title {
    font-size: clamp(2rem, 5vw, 3rem);
    font-weight: 700;
    margin-bottom: var(--spacing-lg);
}

.section-subtitle {
    font-size: var(--font-size-lg);
    color: var(--text-secondary);
    max-width: 600px;
    margin: 0 auto;
}

/* ===== Services Grid ===== */
.services {
    background: var(--bg-secondary);
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: var(--spacing-2xl);
}

.service-card {
    background: var(--card-bg);
    padding: var(--spacing-2xl);
    border-radius: var(--radius-xl);
    border: 1px solid var(--border-color);
    transition: all var(--transition-base);
    position: relative;
    overflow: hidden;
}

.service-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 2px;
    background: linear-gradient(90deg, var(--gradient-start), var(--gradient-end));
    transform: scaleX(0);
    transition: transform var(--transition-base);
}

.service-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 30px var(--card-shadow);
}

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

.service-icon {
    width: 60px;
    height: 60px;
    background: linear-gradient(135deg, var(--gradient-start), var(--gradient-end));
    border-radius: var(--radius-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: var(--spacing-lg);
}

.service-icon svg {
    color: white;
}

.service-title {
    font-size: var(--font-size-2xl);
    margin-bottom: var(--spacing-md);
}

.service-description {
    color: var(--text-secondary);
    margin-bottom: var(--spacing-lg);
}

.service-link {
    display: inline-flex;
    align-items: center;
    font-weight: 600;
    color: var(--accent-color);
}

.service-link span {
    margin-left: var(--spacing-xs);
    transition: transform var(--transition-base);
}

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

/* ===== Featured Projects ===== */
.featured-projects {
    padding: var(--spacing-3xl) 0;
}

.projects-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: var(--spacing-2xl);
    margin-bottom: var(--spacing-3xl);
}

.project-card {
    background: var(--card-bg);
    border-radius: var(--radius-xl);
    overflow: hidden;
    border: 1px solid var(--border-color);
    transition: all var(--transition-base);
}

.project-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 30px var(--card-shadow);
}

.project-image {
    position: relative;
    height: 250px;
    overflow: hidden;
    background: var(--bg-tertiary);
}

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

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

.project-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: var(--overlay-bg);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: opacity var(--transition-base);
}

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

.project-category {
    padding: var(--spacing-xs) var(--spacing-lg);
    background: var(--accent-color);
    color: white;
    border-radius: var(--radius-full);
    font-size: var(--font-size-sm);
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-bottom: var(--spacing-md);
}

.project-link {
    color: white;
    font-weight: 600;
    display: inline-flex;
    align-items: center;
}

.project-content {
    padding: var(--spacing-xl);
}

.project-title {
    font-size: var(--font-size-xl);
    margin-bottom: var(--spacing-sm);
}

.project-description {
    color: var(--text-secondary);
}

.projects-cta {
    text-align: center;
}

/* ===== Testimonials ===== */
.testimonials {
    background: var(--bg-secondary);
    padding: var(--spacing-3xl) 0;
}

.testimonials-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: var(--spacing-2xl);
}

.testimonial-card {
    background: var(--card-bg);
    padding: var(--spacing-2xl);
    border-radius: var(--radius-xl);
    border: 1px solid var(--border-color);
}

.testimonial-rating {
    color: #fbbf24;
    font-size: var(--font-size-xl);
    margin-bottom: var(--spacing-lg);
}

.testimonial-text {
    font-size: var(--font-size-lg);
    line-height: 1.7;
    color: var(--text-secondary);
    margin-bottom: var(--spacing-xl);
}

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

.author-avatar {
    width: 50px;
    height: 50px;
    border-radius: var(--radius-full);
    background: linear-gradient(135deg, var(--gradient-start), var(--gradient-end));
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-weight: 700;
    font-size: var(--font-size-lg);
}

.author-name {
    font-size: var(--font-size-base);
    font-weight: 600;
    margin-bottom: var(--spacing-xs);
}

.author-position {
    font-size: var(--font-size-sm);
    color: var(--text-tertiary);
}

/* ===== CTA Section ===== */
.cta-section {
    padding: var(--spacing-3xl) 0;
    background: linear-gradient(135deg, var(--gradient-start), var(--gradient-end));
}

.cta-content {
    text-align: center;
    color: white;
}

.cta-title {
    font-size: clamp(2rem, 5vw, 3rem);
    margin-bottom: var(--spacing-lg);
}

.cta-subtitle {
    font-size: var(--font-size-xl);
    opacity: 0.9;
    margin-bottom: var(--spacing-2xl);
}

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

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

.cta-section .btn-outline {
    border-color: white;
    color: white;
}

.cta-section .btn-outline:hover {
    background: rgba(255, 255, 255, 0.2);
}

/* ===== Newsletter ===== */
.newsletter {
    padding: var(--spacing-3xl) 0;
    background: var(--bg-secondary);
}

.newsletter-content {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--spacing-3xl);
    flex-wrap: wrap;
}

.newsletter-title {
    font-size: var(--font-size-2xl);
    margin-bottom: var(--spacing-sm);
}

.newsletter-subtitle {
    color: var(--text-secondary);
}

.newsletter-form {
    display: flex;
    gap: var(--spacing-md);
    flex: 1;
    max-width: 500px;
}

.newsletter-input {
    flex: 1;
    padding: var(--spacing-md) var(--spacing-lg);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-full);
    background: var(--bg-primary);
    color: var(--text-primary);
    font-size: var(--font-size-base);
    transition: all var(--transition-base);
}

.newsletter-input:focus {
    outline: none;
    border-color: var(--accent-color);
    box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.1);
}

/* ===== Footer ===== */
.footer {
    background: var(--bg-tertiary);
    padding: var(--spacing-3xl) 0 var(--spacing-xl);
    border-top: 1px solid var(--border-color);
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--spacing-3xl);
    margin-bottom: var(--spacing-2xl);
}

.footer-title {
    font-size: var(--font-size-xl);
    margin-bottom: var(--spacing-lg);
}

.footer-description {
    color: var(--text-secondary);
    margin-bottom: var(--spacing-lg);
}

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

.social-link {
    width: 44px;
    height: 44px;
    border-radius: var(--radius-full);
    background: var(--bg-secondary);
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all var(--transition-base);
}

.social-link:hover {
    background: var(--accent-color);
    transform: translateY(-3px);
}

.social-link:hover svg {
    color: white;
}

.footer-heading {
    font-size: var(--font-size-lg);
    margin-bottom: var(--spacing-lg);
}

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

.footer-links li,
.footer-contact li {
    margin-bottom: var(--spacing-sm);
}

.footer-links a {
    color: var(--text-secondary);
    transition: color var(--transition-base);
}

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

.footer-contact li {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    color: var(--text-secondary);
}

.footer-contact svg {
    flex-shrink: 0;
}

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

.footer-bottom p {
    color: var(--text-tertiary);
    margin: 0;
}

/* ===== Responsive Design ===== */
/* Large Tablets and Small Laptops */
@media (max-width: 1024px) {
    .nav-menu {
        gap: var(--spacing-lg);
    }

    .dropdown-menu {
        min-width: 180px;
    }

    .hero-title {
        font-size: clamp(2.5rem, 7vw, 4rem);
    }

    .services-grid,
    .projects-grid,
    .testimonials-grid {
        grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
        gap: var(--spacing-xl);
    }
}

/* Tablets */
@media (max-width: 900px) {
    .container {
        padding: 0 var(--spacing-xl);
    }

    .hero-stats {
        grid-template-columns: repeat(3, 1fr);
        gap: var(--spacing-lg);
        max-width: 500px;
    }

    .stat-number {
        font-size: var(--font-size-3xl);
    }

    .newsletter-content {
        flex-direction: column;
        text-align: center;
        gap: var(--spacing-xl);
    }

    .footer-content {
        grid-template-columns: repeat(2, 1fr);
        gap: var(--spacing-2xl);
    }
}

@media (max-width: 768px) {
    .nav-wrapper {
        padding: var(--spacing-md) 0;
    }

    .nav-menu {
        position: fixed;
        top: 80px;
        left: -100%;
        width: 100%;
        height: calc(100vh - 80px);
        background: var(--bg-primary);
        backdrop-filter: blur(20px);
        -webkit-backdrop-filter: blur(20px);
        flex-direction: column;
        padding: var(--spacing-3xl) var(--spacing-xl);
        transition: left var(--transition-base);
        box-shadow: 0 10px 30px var(--card-shadow);
        border-right: 1px solid var(--border-color);
        overflow-y: auto;
        gap: var(--spacing-xl);
        align-items: flex-start;
    }

    .nav-menu.active {
        left: 0;
    }

    .nav-menu li {
        width: 100%;
    }

    .nav-link {
        font-size: var(--font-size-lg);
        padding: var(--spacing-sm) 0;
        display: block;
        width: 100%;
    }

    .mobile-menu-btn {
        display: flex;
        z-index: 1001;
    }

    .theme-toggle {
        margin-left: auto;
        margin-right: var(--spacing-md);
        z-index: 1001;
    }

    .dropdown {
        width: 100%;
    }

    .dropdown-menu {
        position: static;
        opacity: 1;
        visibility: visible;
        transform: none;
        box-shadow: none;
        border: none;
        background: var(--bg-secondary);
        margin-top: var(--spacing-sm);
        border-radius: var(--radius-md);
        min-width: auto;
        width: 100%;
    }

    .dropdown-menu a {
        padding: var(--spacing-md);
        font-size: var(--font-size-base);
    }

    /* Hero Section Mobile Improvements */
    .hero {
        padding-top: 100px;
        min-height: 90vh;
    }

    .hero-content {
        padding: var(--spacing-2xl) 0;
    }

    .hero-title {
        font-size: clamp(2rem, 10vw, 3.5rem);
        line-height: 1.1;
        margin-bottom: var(--spacing-lg);
    }

    .hero-subtitle {
        font-size: var(--font-size-lg);
        margin-bottom: var(--spacing-xl);
        padding: 0 var(--spacing-md);
    }

    .hero-buttons {
        flex-direction: column;
        align-items: center;
        gap: var(--spacing-md);
    }

    .hero-buttons .btn {
        width: 100%;
        max-width: 280px;
        text-align: center;
    }

    .hero-stats {
        grid-template-columns: 1fr;
        gap: var(--spacing-xl);
        margin-top: var(--spacing-3xl);
    }

    .stat-number {
        font-size: var(--font-size-3xl);
    }

    /* Grid Layouts Mobile */
    .services-grid,
    .projects-grid,
    .testimonials-grid {
        grid-template-columns: 1fr;
        gap: var(--spacing-xl);
    }

    .services-grid .service-card,
    .projects-grid .project-card,
    .testimonials-grid .testimonial-card {
        max-width: none;
    }

    /* Newsletter Mobile */
    .newsletter-content {
        flex-direction: column;
        text-align: center;
        gap: var(--spacing-xl);
    }

    .newsletter-form {
        width: 100%;
        max-width: 400px;
        margin: 0 auto;
    }

    /* Footer Mobile */
    .footer-content {
        grid-template-columns: 1fr;
        gap: var(--spacing-2xl);
        text-align: center;
    }

    .social-links {
        justify-content: center;
    }

    .footer-bottom {
        flex-direction: column;
        text-align: center;
        gap: var(--spacing-md);
    }

    /* CTA Section Mobile */
    .cta-buttons {
        flex-direction: column;
        align-items: center;
        gap: var(--spacing-md);
    }

    .cta-buttons .btn {
        width: 100%;
        max-width: 280px;
    }
}

/* Small Mobile Devices */
@media (max-width: 480px) {
    .container {
        padding: 0 var(--spacing-lg);
    }

    /* Typography Adjustments */
    .hero-title {
        font-size: clamp(1.75rem, 8vw, 2.5rem);
        margin-bottom: var(--spacing-md);
    }

    .hero-subtitle {
        font-size: var(--font-size-base);
        padding: 0;
    }

    .section-title {
        font-size: clamp(1.5rem, 6vw, 2rem);
    }

    .section-subtitle {
        font-size: var(--font-size-base);
    }

    /* Navigation Adjustments */
    .nav-menu {
        padding: var(--spacing-xl) var(--spacing-lg);
        gap: var(--spacing-lg);
    }

    .logo {
        font-size: var(--font-size-lg);
    }

    /* Button Improvements */
    .btn {
        padding: var(--spacing-md) var(--spacing-xl);
        font-size: var(--font-size-sm);
    }

    .btn-large {
        padding: var(--spacing-lg) var(--spacing-2xl);
        font-size: var(--font-size-base);
    }

    /* Cards Spacing */
    .service-card,
    .project-card,
    .testimonial-card {
        padding: var(--spacing-xl);
    }

    .service-title,
    .project-title {
        font-size: var(--font-size-xl);
    }

    /* Newsletter Form */
    .newsletter-form {
        flex-direction: column;
        gap: var(--spacing-sm);
    }

    .newsletter-input {
        width: 100%;
        padding: var(--spacing-md);
    }

    /* Stats Adjustment */
    .stat-number {
        font-size: var(--font-size-2xl);
    }

    .stat-label {
        font-size: var(--font-size-xs);
    }

    /* Project Images */
    .project-image {
        height: 200px;
    }

    /* Footer Contact */
    .footer-contact li {
        flex-direction: column;
        gap: var(--spacing-xs);
        text-align: center;
    }

    /* Testimonial Text */
    .testimonial-text {
        font-size: var(--font-size-base);
    }
}

/* Extra Small Devices */
@media (max-width: 320px) {
    .container {
        padding: 0 var(--spacing-md);
    }

    .hero-title {
        font-size: 1.5rem;
    }

    .section-title {
        font-size: 1.25rem;
    }

    .service-card,
    .project-card,
    .testimonial-card {
        padding: var(--spacing-lg);
    }

    .btn {
        padding: var(--spacing-sm) var(--spacing-lg);
    }
}

/* ===== Loading States ===== */
.skeleton {
    background: linear-gradient(90deg, var(--bg-tertiary) 25%, var(--bg-secondary) 50%, var(--bg-tertiary) 75%);
    background-size: 200% 100%;
    animation: loading 1.5s infinite;
}

@keyframes loading {
    0% {
        background-position: 200% 0;
    }
    100% {
        background-position: -200% 0;
    }
}

/* ===== Touch and Mobile Interactions ===== */
/* Better touch targets */
@media (hover: none) and (pointer: coarse) {
    .btn {
        min-height: 48px;
        padding: var(--spacing-md) var(--spacing-2xl);
    }

    .nav-link {
        min-height: 44px;
        display: flex;
        align-items: center;
    }

    .social-link {
        min-width: 48px;
        min-height: 48px;
    }

    .theme-toggle {
        min-width: 48px;
        min-height: 48px;
    }

    .mobile-menu-btn {
        min-width: 48px;
        min-height: 48px;
        padding: var(--spacing-md);
    }

    /* Remove hover effects on touch devices */
    .service-card:hover,
    .project-card:hover,
    .btn:hover {
        transform: none;
    }

    /* Add touch-specific active states */
    .btn:active {
        transform: scale(0.98);
        transition: transform 0.1s ease;
    }

    .service-card:active,
    .project-card:active {
        transform: scale(0.995);
        transition: transform 0.1s ease;
    }
}

/* Improved scrolling on mobile */
.nav-menu {
    -webkit-overflow-scrolling: touch;
}

/* Better focus indicators for keyboard navigation */
.btn:focus-visible,
.nav-link:focus-visible,
.theme-toggle:focus-visible {
    outline: 2px solid var(--accent-color);
    outline-offset: 2px;
}

/* ===== Utility Classes ===== */
.fade-up {
    opacity: 0;
    transform: translateY(30px);
    animation: fadeUp 0.6s forwards;
}

.fade-up-delay {
    opacity: 0;
    transform: translateY(30px);
    animation: fadeUp 0.6s forwards;
    animation-delay: 0.2s;
}

.fade-up-delay-2 {
    opacity: 0;
    transform: translateY(30px);
    animation: fadeUp 0.6s forwards;
    animation-delay: 0.4s;
}

.fade-up-delay-3 {
    opacity: 0;
    transform: translateY(30px);
    animation: fadeUp 0.6s forwards;
    animation-delay: 0.6s;
}

@keyframes fadeUp {
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes float {
    0%, 100% {
        transform: translateY(0) rotate(0deg);
    }
    33% {
        transform: translateY(-30px) rotate(120deg);
    }
    66% {
        transform: translateY(30px) rotate(240deg);
    }
}