/* ===================================
   CSS Custom Properties (Variables)
   =================================== */
:root {
    /* Color Palette - Light Mode - Based on Logo Colors */
    --color-primary: #4454a4;
    --color-primary-dark: #363f7d;
    --color-primary-light: #5a6bc0;
    --color-secondary: #3da0da;
    --color-dark: #1F2937;
    --color-dark-alt: #374151;
    --color-gray: #6B7280;
    --color-gray-light: #F3F4F6;
    --color-gray-medium: #E5E7EB;
    --color-white: #FFFFFF;
    --color-text: #1F2937;
    --color-text-light: #6B7280;
    
    --color-bg-primary: #FFFFFF;
    --color-bg-secondary: #F3F4F6;
    --color-bg-card: #FFFFFF;
    --color-border: #E5E7EB;
    
    /* Spacing */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 2rem;
    --spacing-lg: 4rem;
    --spacing-xl: 6rem;
    
    /* Typography */
    --font-primary: 'DM Sans', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    --font-heading: 'Syne', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    --font-mono: 'DM Mono', ui-monospace, SFMono-Regular, 'SF Mono', Menlo, monospace;
    --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;
    --font-size-6xl: 4rem;
    
    /* Transitions */
    --transition-base: all 0.3s ease;
    
    /* Borders */
    --border-radius: 0.5rem;
    --border-radius-lg: 1rem;
}

/* Dark Mode Colors */
@media (prefers-color-scheme: dark) {
    :root:not([data-theme="light"]) {
        --color-text: #F9FAFB;
        --color-text-light: #D1D5DB;
        --color-bg-primary: #111827;
        --color-bg-secondary: #1F2937;
        --color-bg-card: #374151;
        --color-border: #4B5563;
        --color-gray-light: #1F2937;
        --color-gray-medium: #374151;
        --color-white: #F9FAFB;
    }
}

/* Manual dark mode override */
:root[data-theme="dark"] {
    --color-text: #F9FAFB;
    --color-text-light: #D1D5DB;
    --color-bg-primary: #111827;
    --color-bg-secondary: #1F2937;
    --color-bg-card: #374151;
    --color-border: #4B5563;
    --color-gray-light: #1F2937;
    --color-gray-medium: #374151;
    --color-white: #F9FAFB;
}

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

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

body {
    font-family: var(--font-primary);
    font-size: var(--font-size-base);
    line-height: 1.6;
    color: var(--color-text);
    background-color: var(--color-bg-primary);
    transition: background-color 0.3s ease, color 0.3s ease;
}

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

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

ul {
    list-style: none;
}

/* ===================================
   Typography
   =================================== */
h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-heading);
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: var(--spacing-sm);
}

code, pre, .mono {
    font-family: var(--font-mono);
}

h1 { font-size: var(--font-size-6xl); }
h2 { font-size: var(--font-size-4xl); }
h3 { font-size: var(--font-size-3xl); }
h4 { font-size: var(--font-size-2xl); }

p {
    margin-bottom: var(--spacing-sm);
}

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

/* ===================================
   Header & Navigation
   =================================== */
.site-header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background-color: var(--color-bg-primary);
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
    z-index: 1000;
    transition: background-color 0.3s ease;
}

@media (prefers-color-scheme: dark) {
    :root:not([data-theme="light"]) .site-header {
        box-shadow: 0 2px 8px rgba(0, 0, 0, 0.3);
    }
}

:root[data-theme="dark"] .site-header {
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.3);
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: var(--spacing-sm) var(--spacing-md);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo img {
    height: 60px;
    width: auto;
}

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

.nav-links a {
    font-weight: 600;
    text-transform: uppercase;
    font-size: 0.875rem;
    letter-spacing: 0.05em;
    color: var(--color-text);
    padding: var(--spacing-xs) 0;
    position: relative;
}

.nav-links a::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background-color: var(--color-primary);
    transition: width 0.3s ease;
}

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

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

/* Navigation Right Side (Theme Toggle + Mobile Menu) */
.nav-right {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

/* Theme Toggle Button */
.theme-toggle {
    background: transparent;
    border: 2px solid var(--color-border);
    border-radius: var(--border-radius);
    width: 44px;
    height: 44px;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: var(--transition-base);
    position: relative;
}

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

.theme-toggle:hover svg {
    color: var(--color-white);
}

.theme-toggle svg {
    width: 20px;
    height: 20px;
    color: var(--color-text);
    transition: var(--transition-base);
    position: absolute;
}

.sun-icon {
    display: none;
}

.moon-icon {
    display: block;
}

/* Mobile Menu Toggle */
.mobile-menu-toggle {
    display: none;
    flex-direction: column;
    justify-content: space-around;
    width: 44px;
    height: 44px;
    background: transparent;
    border: 2px solid var(--color-border);
    border-radius: var(--border-radius);
    cursor: pointer;
    padding: 10px;
    transition: var(--transition-base);
}

.mobile-menu-toggle:hover {
    border-color: var(--color-primary);
}

.mobile-menu-toggle span {
    width: 100%;
    height: 3px;
    background-color: var(--color-text);
    border-radius: 2px;
    transition: var(--transition-base);
}

.mobile-menu-toggle.active span:nth-child(1) {
    transform: rotate(45deg) translate(6px, 6px);
}

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

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

/* ===================================
   Hero Section
   =================================== */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--color-bg-secondary);
    color: var(--color-text);
    text-align: center;
    padding: var(--spacing-xl) var(--spacing-md);
    margin-top: 80px;
    position: relative;
    overflow: hidden;
}

/* Dark mode hero styling */
:root[data-theme="dark"] .hero {
    background: linear-gradient(135deg, var(--color-dark) 0%, var(--color-dark-alt) 100%);
    color: var(--color-white);
}

@media (prefers-color-scheme: dark) {
    :root:not([data-theme="light"]) .hero {
        background: linear-gradient(135deg, var(--color-dark) 0%, var(--color-dark-alt) 100%);
        color: var(--color-white);
    }
}

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

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

.hero-tagline {
    font-size: var(--font-size-lg);
    font-weight: 700;
    letter-spacing: 0.3em;
    margin-bottom: var(--spacing-md);
    background: linear-gradient(135deg, var(--color-primary), var(--color-secondary));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-subtitle {
    font-size: var(--font-size-lg);
    margin-bottom: var(--spacing-md);
    opacity: 0.9;
}

.hero-greeting {
    font-size: var(--font-size-5xl);
    margin-bottom: var(--spacing-xs);
}

.hero-name {
    font-size: var(--font-size-6xl);
    margin-bottom: var(--spacing-md);
    background: linear-gradient(135deg, var(--color-primary-light), var(--color-secondary));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-title {
    font-size: var(--font-size-3xl);
    font-weight: 600;
    margin-bottom: var(--spacing-sm);
}

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

/* Hero text adjustments for dark mode */
:root[data-theme="dark"] .hero-title,
:root[data-theme="dark"] .hero-experience,
:root[data-theme="dark"] .hero-greeting,
:root[data-theme="dark"] .hero-subtitle {
    color: var(--color-white);
}

@media (prefers-color-scheme: dark) {
    :root:not([data-theme="light"]) .hero-title,
    :root:not([data-theme="light"]) .hero-experience,
    :root:not([data-theme="light"]) .hero-greeting,
    :root:not([data-theme="light"]) .hero-subtitle {
        color: var(--color-white);
    }
}

/* Social Links */
.social-links {
    display: flex;
    justify-content: center;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-lg);
}

.social-links a {
    width: 48px;
    height: 48px;
    border-radius: 50%;
    border: 2px solid var(--color-primary);
    display: flex;
    align-items: center;
    justify-content: center;
    background-color: transparent;
    transition: var(--transition-base);
    color: var(--color-text);
}

.social-links a:hover {
    background-color: var(--color-primary);
    color: var(--color-white);
    transform: translateY(-4px);
}

.social-links svg {
    width: 24px;
    height: 24px;
}

/* Social links in dark mode */
:root[data-theme="dark"] .social-links a {
    color: var(--color-white);
}

@media (prefers-color-scheme: dark) {
    :root:not([data-theme="light"]) .social-links a {
        color: var(--color-white);
    }
}

/* CTA Buttons */
.cta-buttons {
    display: flex;
    gap: var(--spacing-sm);
    justify-content: center;
    flex-wrap: wrap;
}

.btn {
    padding: var(--spacing-sm) var(--spacing-md);
    font-size: var(--font-size-lg);
    font-weight: 600;
    border-radius: var(--border-radius);
    cursor: pointer;
    transition: var(--transition-base);
    display: inline-block;
}

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

.btn-primary:hover {
    background-color: var(--color-primary-dark);
    transform: translateY(-2px);
    box-shadow: 0 8px 16px rgba(68, 84, 164, 0.3);
}

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

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

/* CTA buttons in dark mode */
:root[data-theme="dark"] .btn-secondary {
    color: var(--color-white);
    border-color: var(--color-white);
}

:root[data-theme="dark"] .btn-secondary:hover {
    background-color: var(--color-white);
    color: var(--color-primary);
}

@media (prefers-color-scheme: dark) {
    :root:not([data-theme="light"]) .btn-secondary {
        color: var(--color-white);
        border-color: var(--color-white);
    }
    
    :root:not([data-theme="light"]) .btn-secondary:hover {
        background-color: var(--color-white);
        color: var(--color-primary);
    }
}

/* Scroll Down Indicator */
.scroll-down {
    position: absolute;
    bottom: calc(var(--spacing-xl) + var(--spacing-md));
    left: 50%;
    transform: translateX(-50%);
    width: 56px;
    height: 56px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--color-text);
    background-color: rgba(68, 84, 164, 0.1);
    border: 2px solid var(--color-primary);
    border-radius: 50%;
    cursor: pointer;
    animation: bounce 2s infinite;
    z-index: 2;
    backdrop-filter: blur(10px);
    transition: var(--transition-base);
}

.scroll-down:hover {
    background-color: var(--color-primary);
    border-color: var(--color-primary);
    color: var(--color-white);
    transform: translateX(-50%) scale(1.1);
    animation: none;
}

.scroll-down svg {
    width: 28px;
    height: 28px;
}

/* Scroll down in dark mode */
:root[data-theme="dark"] .scroll-down {
    color: var(--color-white);
    background-color: rgba(68, 84, 164, 0.2);
    border-color: rgba(255, 255, 255, 0.3);
}

@media (prefers-color-scheme: dark) {
    :root:not([data-theme="light"]) .scroll-down {
        color: var(--color-white);
        background-color: rgba(68, 84, 164, 0.2);
        border-color: rgba(255, 255, 255, 0.3);
    }
}

/* Bounce Animation */
@keyframes bounce {
    0%, 20%, 50%, 80%, 100% {
        transform: translateX(-50%) translateY(0);
    }
    40% {
        transform: translateX(-50%) translateY(-15px);
    }
    60% {
        transform: translateX(-50%) translateY(-8px);
    }
}

/* ===================================
   About Section
   =================================== */
.about {
    padding: var(--spacing-xl) 0;
    background-color: var(--color-bg-primary);
}

.about h2 {
    margin-bottom: var(--spacing-lg);
}

.about-content {
    display: grid;
    grid-template-columns: 1fr 2fr;
    gap: var(--spacing-lg);
    align-items: center;
}

.about-image img {
    width: 300px;
    height: 300px;
    object-fit: cover;
    object-position: top;
    border-radius: 50%;
    border: 4px solid var(--color-primary);
    box-shadow: 0 8px 24px rgba(79, 70, 229, 0.2);
}

.about-text p {
    font-size: var(--font-size-lg);
    color: var(--color-text-light);
    line-height: 1.8;
}

/* ===================================
   Stats Section
   =================================== */
.stats {
    padding: var(--spacing-lg) 0;
    background-color: var(--color-bg-secondary);
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--spacing-md);
}

@media (min-width: 768px) {
    .stats-grid {
        grid-template-columns: repeat(4, 1fr);
    }
}

.stat-item {
    text-align: center;
    padding: var(--spacing-md);
    background-color: var(--color-bg-card);
    border-radius: var(--border-radius-lg);
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.05);
    transition: var(--transition-base);
    border: 1px solid var(--color-border);
}

.stat-item:hover {
    transform: translateY(-4px);
    box-shadow: 0 8px 16px rgba(68, 84, 164, 0.2);
}

@media (prefers-color-scheme: dark) {
    :root:not([data-theme="light"]) .stat-item {
        box-shadow: 0 2px 8px rgba(0, 0, 0, 0.3);
    }
}

:root[data-theme="dark"] .stat-item {
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.3);
}

.stat-number {
    display: block;
    font-size: var(--font-size-5xl);
    font-weight: 700;
    color: var(--color-primary);
    margin-bottom: var(--spacing-xs);
}

.stat-label {
    display: block;
    font-size: var(--font-size-lg);
    color: var(--color-text-light);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    font-weight: 600;
}

/* ===================================
   Services Section
   =================================== */
.services {
    padding: var(--spacing-xl) 0;
    background-color: var(--color-bg-primary);
}

.services h2 {
    text-align: center;
    margin-bottom: var(--spacing-lg);
}

.services-category {
    margin-bottom: var(--spacing-xl);
}

.services-category:last-child {
    margin-bottom: 0;
}

.services-category h3 {
    color: var(--color-primary);
    margin-bottom: var(--spacing-md);
    font-size: var(--font-size-2xl);
}

.services-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--spacing-md);
}

@media (min-width: 768px) {
    .services-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

.service-card {
    background-color: var(--color-bg-secondary);
    padding: var(--spacing-md);
    border-radius: var(--border-radius-lg);
    transition: var(--transition-base);
    border: 2px solid var(--color-border);
}

.service-card:hover {
    border-color: var(--color-primary);
    transform: translateY(-4px);
    box-shadow: 0 8px 24px rgba(68, 84, 164, 0.25);
}

.service-icon {
    width: 64px;
    height: 64px;
    background-color: var(--color-primary);
    color: var(--color-white);
    border-radius: var(--border-radius);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: var(--spacing-sm);
}

.service-icon svg {
    width: 32px;
    height: 32px;
}

.service-card h4 {
    font-size: var(--font-size-xl);
    margin-bottom: var(--spacing-sm);
    color: var(--color-text);
}

.service-card p {
    color: var(--color-text-light);
    line-height: 1.7;
}

/* ===================================
   Portfolio Section
   =================================== */
.portfolio {
    padding: var(--spacing-xl) 0;
    background-color: var(--color-bg-secondary);
}

.portfolio h2 {
    text-align: center;
    margin-bottom: var(--spacing-sm);
}

.portfolio .section-subtitle {
    text-align: center;
    color: var(--color-text-muted);
    margin-bottom: var(--spacing-lg);
}

.portfolio-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: var(--spacing-md);
}

.portfolio-card {
    position: relative;
    border-radius: var(--border-radius);
    overflow: hidden;
    aspect-ratio: 16 / 10;
    display: block;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.portfolio-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 20px rgba(0, 0, 0, 0.15);
}

.portfolio-card img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    object-position: top;
    transition: transform 0.3s ease;
}

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

.portfolio-overlay {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    padding: var(--spacing-md);
    background: linear-gradient(transparent, rgba(0, 0, 0, 0.8));
    color: white;
    transform: translateY(100%);
    transition: transform 0.3s ease;
}

.portfolio-card:hover .portfolio-overlay {
    transform: translateY(0);
}

.portfolio-overlay h4 {
    margin: 0;
    font-size: var(--font-size-lg);
    font-weight: 600;
}

/* ===================================
   Clients Section
   =================================== */
.clients {
    padding: var(--spacing-xl) 0;
    background-color: var(--color-bg-secondary);
}

.clients h2 {
    text-align: center;
    margin-bottom: var(--spacing-lg);
}

.clients-grid {
    display: grid;
    grid-template-columns: repeat(5, 1fr);
    gap: var(--spacing-sm);
    justify-items: center;
    align-items: center;
}

@media (max-width: 768px) {
    .clients-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

.client-logo {
    width: 100%;
    transition: transform 0.3s ease;
}

.client-logo:hover {
    transform: scale(1.1);
}

.client-logo img {
    width: 100%;
    height: auto;
    object-fit: contain;
}

.client-logo.light-logo {
    background-color: #1F2937;
    border-radius: var(--border-radius);
    padding: var(--spacing-sm);
}

/* ===================================
   Tech Stack Section
   =================================== */
.stack {
    padding: var(--spacing-xl) 0;
    background-color: var(--color-bg-primary);
}

.stack h2 {
    text-align: center;
    margin-bottom: var(--spacing-lg);
}

.stack-category {
    margin-bottom: var(--spacing-lg);
}

.stack-category:last-child {
    margin-bottom: 0;
}

.stack-category h3 {
    color: var(--color-primary);
    margin-bottom: var(--spacing-md);
    font-size: var(--font-size-2xl);
}

.stack-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    gap: var(--spacing-sm);
}

.stack-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--spacing-xs);
    background-color: var(--color-bg-secondary);
    padding: var(--spacing-md);
    border-radius: var(--border-radius);
    text-align: center;
    font-weight: 500;
    font-size: var(--font-size-base);
    color: var(--color-text);
    border: 2px solid var(--color-border);
    transition: var(--transition-base);
}

.stack-item i {
    font-size: 2.5rem;
    color: var(--color-primary);
}

.stack-item .stack-letter {
    font-size: 2rem;
    font-weight: 700;
    color: var(--color-primary);
    font-family: var(--font-heading);
}

.stack-item:hover {
    border-color: var(--color-primary);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(68, 84, 164, 0.25);
}

.stack-item:hover i,
.stack-item:hover .stack-letter {
    color: var(--color-secondary);
}

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

.testimonials h2 {
    text-align: center;
    margin-bottom: var(--spacing-lg);
}

.testimonials-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--spacing-md);
}

@media (min-width: 768px) {
    .testimonials-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

.testimonial-card {
    background-color: var(--color-bg-card);
    padding: var(--spacing-md);
    border-radius: var(--border-radius-lg);
    border: 2px solid var(--color-border);
    transition: var(--transition-base);
    display: flex;
    flex-direction: column;
}

.testimonial-card:hover {
    border-color: var(--color-primary);
    transform: translateY(-4px);
    box-shadow: 0 8px 24px rgba(68, 84, 164, 0.25);
}

.testimonial-icon {
    width: 48px;
    height: 48px;
    color: var(--color-primary);
    margin-bottom: var(--spacing-sm);
}

.testimonial-icon svg {
    width: 100%;
    height: 100%;
}

.testimonial-card blockquote {
    flex-grow: 1;
    margin-bottom: var(--spacing-md);
}

.testimonial-card blockquote p {
    color: var(--color-text-light);
    font-size: var(--font-size-lg);
    line-height: 1.7;
    font-style: italic;
}

.testimonial-card cite {
    font-style: normal;
}

.testimonial-card cite strong {
    display: block;
    color: var(--color-primary);
    font-size: var(--font-size-lg);
    margin-bottom: var(--spacing-xs);
}

.testimonial-card cite span {
    display: block;
    color: var(--color-text-light);
}

/* ===================================
   Contact Section
   =================================== */
.contact {
    padding: var(--spacing-xl) 0;
    background-color: var(--color-bg-primary);
}

.contact h2 {
    text-align: center;
    margin-bottom: var(--spacing-lg);
}

.contact-content {
    display: grid;
    grid-template-columns: 1fr 2fr;
    gap: var(--spacing-lg);
}

.contact-intro {
    font-size: var(--font-size-xl);
    color: var(--color-text-light);
    margin-bottom: var(--spacing-md);
}

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

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

.contact-item strong {
    display: block;
    margin-bottom: var(--spacing-xs);
    color: var(--color-text);
}

.contact-item svg {
    width: 24px;
    height: 24px;
    color: var(--color-primary);
    flex-shrink: 0;
    margin-top: 4px;
}

.contact-item p,
.contact-item a {
    color: var(--color-text-light);
    font-size: var(--font-size-lg);
}

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

.contact-form iframe {
    border-radius: var(--border-radius-lg);
    background-color: var(--color-bg-card);
    border: 1px solid var(--color-border);
}

/* ===================================
   Footer
   =================================== */
.site-footer {
    background-color: var(--color-bg-primary);
    color: var(--color-text);
    padding: var(--spacing-lg) 0;
    text-align: center;
    border-top: 1px solid var(--color-border);
}

.site-footer p {
    margin: 0;
}

.footer-tagline {
    font-weight: 700;
    letter-spacing: 0.2em;
    margin-bottom: var(--spacing-sm) !important;
    background: linear-gradient(135deg, var(--color-primary), var(--color-secondary));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.footer-credit {
    font-size: 0.75rem;
    opacity: 0.7;
    margin-top: 0.5rem !important;
    font-weight: 400;
}

.footer-credit a {
    color: var(--color-primary);
    text-decoration: underline;
    transition: var(--transition-base);
}

.footer-credit a:hover {
    color: var(--color-secondary);
    opacity: 1;
}

/* Footer in dark mode - match navbar */
:root[data-theme="dark"] .site-footer {
    background-color: var(--color-bg-primary);
    color: var(--color-white);
    border-top-color: var(--color-border);
}

@media (prefers-color-scheme: dark) {
    :root:not([data-theme="light"]) .site-footer {
        background-color: var(--color-bg-primary);
        color: var(--color-white);
        border-top-color: var(--color-border);
    }
}

/* ===================================
   Responsive Design
   =================================== */
@media (max-width: 992px) {
    :root {
        --font-size-6xl: 3rem;
        --font-size-5xl: 2.5rem;
        --font-size-4xl: 2rem;
        --font-size-3xl: 1.75rem;
    }
    
    .mobile-menu-toggle {
        display: flex;
    }
    
    .nav-links {
        position: fixed;
        top: 80px;
        left: 0;
        right: 0;
        background-color: var(--color-bg-primary);
        flex-direction: column;
        padding: var(--spacing-md);
        box-shadow: 0 8px 16px rgba(0, 0, 0, 0.1);
        transform: translateY(-100%);
        opacity: 0;
        visibility: hidden;
        transition: all 0.3s ease;
        z-index: 999;
        border-bottom: 2px solid var(--color-border);
    }
    
    .nav-links.active {
        transform: translateY(0);
        opacity: 1;
        visibility: visible;
    }
    
    .nav-links li {
        margin: 0;
    }
    
    .nav-links a {
        display: block;
        padding: var(--spacing-sm);
        font-size: var(--font-size-lg);
        text-align: center;
        border-bottom: 1px solid var(--color-border);
    }
    
    .nav-links a::after {
        display: none;
    }
    
    .about-content {
        grid-template-columns: 1fr;
        text-align: center;
    }
    
    .about-image img {
        margin: 0 auto;
    }
    
    .contact-content {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 768px) {
    :root {
        --font-size-6xl: 2.5rem;
        --font-size-5xl: 2rem;
        --spacing-lg: 3rem;
        --spacing-xl: 4rem;
    }
    
    .hero {
        padding: var(--spacing-lg) var(--spacing-sm);
    }
    
    .scroll-down {
        bottom: var(--spacing-lg);
        width: 48px;
        height: 48px;
    }
    
    .scroll-down svg {
        width: 24px;
        height: 24px;
    }
    
    .services-grid,
    .testimonials-grid {
        grid-template-columns: 1fr;
    }
    
    .stack-grid {
        grid-template-columns: repeat(auto-fit, minmax(120px, 1fr));
    }
    
    .cta-buttons {
        flex-direction: column;
        width: 100%;
    }
    
    .btn {
        width: 100%;
        text-align: center;
    }
}

@media (max-width: 480px) {
    :root {
        --font-size-6xl: 2rem;
        --font-size-5xl: 1.75rem;
        --spacing-md: 1rem;
    }
    
    .social-links a {
        width: 40px;
        height: 40px;
    }
    
    .social-links svg {
        width: 20px;
        height: 20px;
    }
}