/* Design System - Variables CSS */
:root {
    /* Light Mode Colors (default) */
    --bg-dark: #FFFFFF;
    --bg-card: #F8FAFC;
    --primary: #6366F1;
    --primary-light: #818CF8;
    --secondary: #10B981;
    --accent: #F59E0B;
    --accent-pink: #EC4899;
    --text-primary: #0A0E27;
    --text-secondary: #64748B;
    
    /* Dark Mode Colors */
    --bg-light: #0A0E27;
    --bg-card-light: #141B3A;
    --text-primary-light: #F8FAFC;
    --text-secondary-light: #94A3B8;
    
    /* Spacing */
    --container-max: 1280px;
    --section-padding-desktop: 6rem;
    --section-padding-mobile: 4rem;
    --card-padding-desktop: 2rem;
    --card-padding-mobile: 1.5rem;
    
    /* Transitions */
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-slow: all 0.5s cubic-bezier(0.4, 0, 0.2, 1);
}

/* Dark Mode */
:root.dark {
    --bg-dark: var(--bg-light);
    --bg-card: var(--bg-card-light);
    --text-primary: var(--text-primary-light);
    --text-secondary: var(--text-secondary-light);
}

/* Reset & Base */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

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

/* Ensure target elements are visible */
[id] {
    scroll-margin-top: 100px;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    background-color: var(--bg-dark);
    color: var(--text-primary);
    line-height: 1.6;
    transition: background-color 0.3s ease, color 0.3s ease;
    overflow-x: hidden;
    position: relative;
}

h1, h2, h3, h4, h5, h6 {
    font-family: 'Space Grotesk', sans-serif;
    font-weight: 700;
    line-height: 1.2;
    color: var(--text-primary);
}

/* Container */
.container {
    max-width: var(--container-max);
    margin: 0 auto;
    padding: 0 1.5rem;
}

/* Header - Sticky Glass */
.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: rgba(255, 255, 255, 0.8);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-bottom: 1px solid rgba(0, 0, 0, 0.1);
    transition: var(--transition);
}

:root.dark .header {
    background: rgba(20, 27, 58, 0.8);
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 1.5rem;
}

.logo {
    font-family: 'Space Grotesk', sans-serif;
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--text-primary);
    text-decoration: none;
    transition: var(--transition);
}

.logo-gradient {
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-light) 50%, var(--accent-pink) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: 2rem;
    align-items: center;
}

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

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 2px;
    background: linear-gradient(90deg, var(--primary), var(--accent-pink));
    transition: width 0.3s ease;
}

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

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

.nav-toggle {
    display: none;
    flex-direction: column;
    gap: 4px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 0.5rem;
}

.nav-toggle span {
    width: 25px;
    height: 2px;
    background: var(--text-primary);
    transition: var(--transition);
}

.theme-toggle {
    background: rgba(255, 255, 255, 0.1);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 0.5rem;
    padding: 0.5rem;
    cursor: pointer;
    color: var(--text-primary);
    transition: var(--transition);
    margin-left: 1rem;
}

.theme-toggle:hover {
    background: rgba(255, 255, 255, 0.2);
    transform: scale(1.05);
}

.theme-toggle svg {
    width: 20px;
    height: 20px;
}

.icon-sun {
    display: none;
}

.icon-moon {
    display: block;
}

:root.dark .icon-sun {
    display: block;
}

:root.dark .icon-moon {
    display: none;
}

/* Buttons */
.btn {
    display: inline-block;
    padding: 0.75rem 1.5rem;
    border-radius: 0.75rem;
    text-decoration: none;
    font-weight: 600;
    transition: var(--transition);
    border: none;
    cursor: pointer;
    text-align: center;
    font-family: 'Inter', sans-serif;
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-light) 100%);
    color: var(--text-primary);
    box-shadow: 0 4px 14px rgba(99, 102, 241, 0.4);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(99, 102, 241, 0.6);
}

.btn-primary-large {
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-light) 100%);
    color: var(--text-primary);
    padding: 1rem 2rem;
    font-size: 1.1rem;
    box-shadow: 0 4px 14px rgba(99, 102, 241, 0.4);
}

.btn-primary-large:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(99, 102, 241, 0.6);
}

.btn-primary-nav {
    background: linear-gradient(135deg, var(--accent) 0%, #F97316 100%);
    color: var(--text-primary);
    box-shadow: 0 4px 14px rgba(245, 158, 11, 0.4);
}

.btn-primary-nav:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(245, 158, 11, 0.6);
}

.btn-secondary-glass {
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.2);
    color: var(--text-primary);
}

.btn-secondary-glass:hover {
    background: rgba(255, 255, 255, 0.2);
    transform: translateY(-2px);
}

.btn-link-arrow {
    color: var(--primary-light);
    text-decoration: none;
    font-weight: 600;
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    transition: var(--transition);
    position: relative;
    z-index: 2;
    pointer-events: auto;
}

.btn-link-arrow:hover {
    color: var(--accent-pink);
    gap: 0.75rem;
}

.btn-link-arrow::after {
    content: '→';
    transition: var(--transition);
}

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

.hero-background {
    position: absolute;
    inset: 0;
    z-index: 0;
    overflow: hidden;
}

.gradient-blob {
    position: absolute;
    border-radius: 50%;
    filter: blur(80px);
    opacity: 0.5;
    animation: blob 7s infinite;
}

.blob-1 {
    width: 500px;
    height: 500px;
    background: linear-gradient(135deg, var(--primary), var(--primary-light));
    top: -200px;
    left: -200px;
    animation-delay: 0s;
}

.blob-2 {
    width: 400px;
    height: 400px;
    background: linear-gradient(135deg, var(--accent-pink), var(--accent));
    bottom: -150px;
    right: -150px;
    animation-delay: 2s;
}

.blob-3 {
    width: 300px;
    height: 300px;
    background: linear-gradient(135deg, var(--secondary), var(--primary-light));
    top: 50%;
    right: 10%;
    animation-delay: 4s;
}

@keyframes blob {
    0%, 100% {
        transform: translate(0, 0) scale(1);
    }
    33% {
        transform: translate(30px, -50px) scale(1.1);
    }
    66% {
        transform: translate(-20px, 20px) scale(0.9);
    }
}

.grid-pattern {
    position: absolute;
    inset: 0;
    background-image: 
        linear-gradient(rgba(255, 255, 255, 0.05) 1px, transparent 1px),
        linear-gradient(90deg, rgba(255, 255, 255, 0.05) 1px, transparent 1px);
    background-size: 20px 20px;
    opacity: 0.3;
}

.hero-content {
    position: relative;
    z-index: 1;
    text-align: center;
    max-width: 900px;
    margin: 0 auto;
    padding: var(--section-padding-desktop) 0;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.5rem 1rem;
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: 2rem;
    font-size: 0.875rem;
    margin-bottom: 2rem;
    color: var(--text-secondary);
}

.badge-dot {
    width: 8px;
    height: 8px;
    background: var(--secondary);
    border-radius: 50%;
    animation: pulse 2s infinite;
}

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

.hero-title {
    font-size: clamp(2.5rem, 5vw, 4rem);
    margin-bottom: 1.5rem;
    line-height: 1.1;
}

.gradient-text {
    background: linear-gradient(135deg, var(--text-primary) 0%, var(--primary-light) 50%, var(--accent-pink) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-subtitle {
    font-size: 1.25rem;
    color: var(--text-secondary);
    margin-bottom: 2.5rem;
    line-height: 1.6;
}

.hero-cta {
    display: flex;
    gap: 1rem;
    justify-content: center;
    flex-wrap: wrap;
    margin-bottom: 3rem;
}

.hero-trust {
    display: flex;
    gap: 1.5rem;
    justify-content: center;
    flex-wrap: wrap;
    margin-bottom: 3rem;
}

.trust-card {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 1rem 1.5rem;
    background: rgba(255, 255, 255, 0.05);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 0.75rem;
}

.trust-icon {
    width: 24px;
    height: 24px;
    color: var(--primary-light);
}

.trust-text {
    display: flex;
    flex-direction: column;
}

.trust-text strong {
    font-size: 0.875rem;
    color: var(--text-primary);
}

.trust-text span {
    font-size: 0.75rem;
    color: var(--text-secondary);
}

.scroll-indicator {
    position: absolute;
    bottom: 2rem;
    left: 50%;
    transform: translateX(-50%);
    width: 24px;
    height: 24px;
    color: var(--text-secondary);
    animation: bounce 2s infinite;
}

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

/* Glass Card Effect */
.glass-card {
    background: rgba(255, 255, 255, 0.6);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border: 1px solid rgba(0, 0, 0, 0.1);
    border-radius: 1.5rem;
    padding: var(--card-padding-desktop);
    transition: var(--transition);
    position: relative;
    overflow: hidden;
}

:root.dark .glass-card {
    background: rgba(20, 27, 58, 0.6);
    border: 1px solid rgba(255, 255, 255, 0.1);
}

.glass-card::before {
    content: '';
    position: absolute;
    inset: -0.5px;
    border-radius: 1.5rem;
    padding: 0.5px;
    background: linear-gradient(135deg, var(--primary), var(--accent-pink));
    -webkit-mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
    -webkit-mask-composite: xor;
    mask-composite: exclude;
    opacity: 0;
    transition: opacity 0.3s ease;
    pointer-events: none;
    z-index: 0;
}

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

.glass-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.3);
}

/* Stats Section */
.stats-section {
    padding: var(--section-padding-desktop) 0;
    position: relative;
}

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

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

.stat-value {
    font-size: 3rem;
    font-weight: 700;
    font-family: 'Space Grotesk', sans-serif;
    background: linear-gradient(135deg, var(--primary-light), var(--accent-pink));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 0.5rem;
}

.stat-label {
    color: var(--text-secondary);
    font-size: 1rem;
}

/* Services Section */
.services-section {
    padding: var(--section-padding-desktop) 0;
}

.section-title {
    font-size: clamp(2rem, 4vw, 3rem);
    text-align: center;
    margin-bottom: 1rem;
}

.section-subtitle {
    text-align: center;
    color: var(--text-secondary);
    font-size: 1.25rem;
    margin-bottom: 3rem;
}

.services-bento {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2rem;
}

.service-card-bento {
    display: flex;
    flex-direction: column;
    min-height: 100%;
}

.service-card-bento .glass-card {
    height: 100%;
    display: flex;
    flex-direction: column;
}

.service-icon-wrapper {
    width: 56px;
    height: 56px;
    border-radius: 0.75rem;
    background: linear-gradient(135deg, var(--primary), var(--primary-light));
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 1.25rem;
    color: var(--text-primary);
    flex-shrink: 0;
}

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

.service-title {
    font-size: 1.25rem;
    margin-bottom: 0.75rem;
    color: var(--text-primary);
    line-height: 1.3;
}

.service-description {
    color: var(--text-secondary);
    margin-bottom: 1rem;
    line-height: 1.6;
    font-size: 0.95rem;
}

.service-features {
    list-style: none;
    margin-bottom: 1.5rem;
    flex-grow: 1;
}

.service-features li {
    color: var(--text-secondary);
    margin-bottom: 0.5rem;
    font-size: 0.9rem;
}

.service-footer {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-top: 1.25rem;
    border-top: 1px solid rgba(0, 0, 0, 0.1);
    margin-top: auto;
    flex-wrap: wrap;
    gap: 0.5rem;
    position: relative;
    z-index: 1;
}

:root.dark .service-footer {
    border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.service-price {
    font-weight: 600;
    color: var(--primary-light);
    font-family: 'JetBrains Mono', monospace;
}

/* Portfolio Section */
.portfolio-section {
    padding: var(--section-padding-desktop) 0;
}

.portfolio-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 2rem;
    margin-bottom: 3rem;
}

.portfolio-card {
    display: flex;
    flex-direction: column;
    min-height: 100%;
}

.portfolio-card .glass-card {
    height: 100%;
    display: flex;
    flex-direction: column;
}

.portfolio-card {
    display: flex;
    flex-direction: column;
}

.portfolio-image {
    position: relative;
    width: 100%;
    height: 180px;
    border-radius: 0.75rem;
    background: linear-gradient(135deg, var(--primary), var(--accent-pink));
    margin-bottom: 1.25rem;
    overflow: hidden;
    flex-shrink: 0;
}

.portfolio-overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(to bottom, transparent, rgba(0, 0, 0, 0.7));
}

.portfolio-tags {
    position: absolute;
    top: 1rem;
    left: 1rem;
    display: flex;
    gap: 0.5rem;
    z-index: 1;
}

.tag {
    padding: 0.25rem 0.75rem;
    background: rgba(255, 255, 255, 0.2);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.3);
    border-radius: 1rem;
    font-size: 0.75rem;
    font-weight: 600;
    color: var(--text-primary);
    font-family: 'JetBrains Mono', monospace;
}

.portfolio-content {
    flex-grow: 1;
}

.portfolio-title {
    font-size: 1.15rem;
    margin-bottom: 0.75rem;
    color: var(--text-primary);
    line-height: 1.3;
}

.portfolio-description {
    color: var(--text-secondary);
    margin-bottom: 1rem;
    line-height: 1.6;
    font-size: 0.9rem;
    flex-grow: 1;
}

.portfolio-metrics {
    display: flex;
    gap: 1rem;
    margin-bottom: 1rem;
    font-size: 0.875rem;
    color: var(--text-secondary);
    font-family: 'JetBrains Mono', monospace;
}

/* Final CTA */
.final-cta {
    position: relative;
    padding: var(--section-padding-desktop) 0;
    overflow: hidden;
}

.cta-background {
    position: absolute;
    inset: 0;
    z-index: 0;
}

.cta-content {
    position: relative;
    z-index: 1;
    text-align: center;
    max-width: 700px;
    margin: 0 auto;
}

.cta-title {
    font-size: clamp(2rem, 4vw, 3rem);
    margin-bottom: 1rem;
}

.cta-subtitle {
    font-size: 1.25rem;
    color: var(--text-secondary);
    margin-bottom: 2rem;
}

/* Footer */
.footer {
    background: var(--bg-card);
    padding: 3rem 0 1rem;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 2rem;
    margin-bottom: 2rem;
}

.footer-title {
    font-size: 1.5rem;
    margin-bottom: 1rem;
}

.footer-heading {
    font-size: 1.1rem;
    margin-bottom: 1rem;
    color: var(--text-primary);
}

.footer-text {
    color: var(--text-secondary);
    margin-bottom: 1rem;
}

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

.footer-links li {
    margin-bottom: 0.5rem;
}

.footer-links a {
    color: var(--text-secondary);
    text-decoration: none;
    transition: var(--transition);
}

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

.footer-bottom {
    text-align: center;
    padding-top: 2rem;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    color: var(--text-secondary);
}

/* Animations */
.fade-in-up {
    opacity: 0;
    transform: translateY(50px);
    transition: opacity 0.6s ease, transform 0.6s ease;
}

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

/* Utility Classes */
.text-center {
    text-align: center;
}

.mt-12 {
    margin-top: 3rem;
}

/* Contact Form Styles */
.contact-container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    max-width: 1000px;
    margin: 0 auto;
}

.contact-info {
    padding: 2rem;
}

.contact-form input:focus,
.contact-form textarea:focus,
.contact-form select:focus {
    border-color: var(--primary) !important;
    outline: none;
}

.form-group.error input,
.form-group.error textarea,
.form-group.error select {
    border-color: #ef4444 !important;
}

/* Portfolio Filters */
.portfolio-filters {
    display: flex;
    gap: 1rem;
    justify-content: center;
    flex-wrap: wrap;
    margin-bottom: 3rem;
}

.filter-btn.active {
    background: linear-gradient(135deg, var(--primary), var(--primary-light)) !important;
    color: var(--text-primary) !important;
}

/* Blog Grid */
.blog-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 2rem;
}

.blog-post {
    display: flex;
    flex-direction: column;
}

/* Responsive */
@media (max-width: 768px) {
    .contact-container {
        grid-template-columns: 1fr;
    }
    
    .about-bio {
        grid-template-columns: 1fr !important;
        text-align: center;
    }
    .nav-menu {
        position: fixed;
        left: -100%;
        top: 70px;
        flex-direction: column;
        background: var(--bg-card);
        width: 100%;
        text-align: center;
        transition: 0.3s;
        padding: 2rem 0;
        gap: 1rem;
        backdrop-filter: blur(20px);
    }

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

    .nav-toggle {
        display: flex;
    }

    .hero-content {
        padding: var(--section-padding-mobile) 0;
    }

    .hero-title {
        font-size: 2rem;
    }

    .hero-subtitle {
        font-size: 1rem;
    }

    .section-title {
        font-size: 2rem;
    }

    .services-bento,
    .portfolio-grid,
    .blog-grid {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }
    
    .service-icon-wrapper {
        width: 48px;
        height: 48px;
    }
    
    .service-icon-wrapper svg {
        width: 24px;
        height: 24px;
    }
    
    .service-title {
        font-size: 1.15rem;
    }
    
    .portfolio-image {
        height: 160px;
    }
    
    .portfolio-title {
        font-size: 1.1rem;
    }
    
    .glass-card {
        padding: 1.5rem;
    }

    .hero-cta {
        flex-direction: column;
    }

    .hero-cta .btn {
        width: 100%;
    }
    
    .hero-background {
        overflow: hidden;
    }
    
    .gradient-blob {
        will-change: transform;
    }
    
    .blob-2 {
        bottom: -250px;
        right: -200px;
    }
    
    .blob-1 {
        top: -250px;
        left: -250px;
    }
    
    .blob-3 {
        display: none;
    }
    
    .hero {
        overflow: hidden;
        position: relative;
    }
}