/* ========================================
   MetroTechX - Global Styles
   ======================================== */

:root {
    /* Colors */
    --bg-primary: #0a0f1a;
    --bg-secondary: #111827;
    --bg-tertiary: #1e293b;
    --bg-card: rgba(17, 24, 39, 0.8);
    --bg-glass: rgba(30, 41, 59, 0.6);
    
    --fg-primary: #f8fafc;
    --fg-secondary: #cbd5e1;
    --fg-muted: #64748b;
    --fg-inverse: #0a0f1a;
    
    --accent-primary: #00d4aa;
    --accent-secondary: #06b6d4;
    --accent-tertiary: #8b5cf6;
    --accent-warm: #f59e0b;
    
    --border-primary: rgba(100, 116, 139, 0.3);
    --border-accent: rgba(0, 212, 170, 0.5);
    
    --gradient-primary: linear-gradient(135deg, #00d4aa 0%, #06b6d4 50%, #8b5cf6 100%);
    --gradient-secondary: linear-gradient(135deg, #1e293b 0%, #0f172a 100%);
    --gradient-card: linear-gradient(145deg, rgba(30, 41, 59, 0.9) 0%, rgba(17, 24, 39, 0.9) 100%);
    --gradient-hero: radial-gradient(ellipse at 50% 0%, rgba(0, 212, 170, 0.15) 0%, transparent 70%),
                     radial-gradient(ellipse at 80% 80%, rgba(139, 92, 246, 0.1) 0%, transparent 60%);
    
    /* Shadows */
    --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.3);
    --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.4);
    --shadow-lg: 0 12px 40px rgba(0, 0, 0, 0.5);
    --shadow-xl: 0 20px 60px rgba(0, 0, 0, 0.6);
    --shadow-glow: 0 0 40px rgba(0, 212, 170, 0.2);
    --shadow-glow-accent: 0 0 30px rgba(6, 182, 212, 0.15);
    
    /* Typography */
    --font-display: 'Space Grotesk', sans-serif;
    --font-body: 'Space Grotesk', sans-serif;
    --font-mono: 'JetBrains Mono', monospace;
    
    --text-xs: 0.75rem;
    --text-sm: 0.875rem;
    --text-base: 1rem;
    --text-lg: 1.125rem;
    --text-xl: 1.25rem;
    --text-2xl: 1.5rem;
    --text-3xl: 2rem;
    --text-4xl: 2.5rem;
    --text-5xl: 3.5rem;
    --text-6xl: 4.5rem;
    
    /* Spacing */
    --space-1: 0.25rem;
    --space-2: 0.5rem;
    --space-3: 0.75rem;
    --space-4: 1rem;
    --space-5: 1.25rem;
    --space-6: 1.5rem;
    --space-8: 2rem;
    --space-10: 2.5rem;
    --space-12: 3rem;
    --space-16: 4rem;
    --space-20: 5rem;
    --space-24: 6rem;
    
    /* Border Radius */
    --radius-sm: 0.375rem;
    --radius-md: 0.5rem;
    --radius-lg: 0.75rem;
    --radius-xl: 1rem;
    --radius-2xl: 1.5rem;
    --radius-full: 9999px;
    
    /* Transitions */
    --transition-fast: 150ms ease;
    --transition-base: 250ms ease;
    --transition-slow: 400ms ease;
    --transition-spring: 500ms cubic-bezier(0.34, 1.56, 0.64, 1);
    
    /* Z-index */
    --z-bg: 0;
    --z-content: 10;
    --z-nav: 100;
    --z-modal: 200;
    --z-toast: 300;
    
    /* Container */
    --container-max: 1280px;
    --container-padding: 1.5rem;
}

/* ========================================
   Reset & Base
   ======================================== */

*, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    scroll-behavior: smooth;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

@media (prefers-reduced-motion: reduce) {
    html { scroll-behavior: auto; }
    *, *::before, *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
}

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

::selection {
    background: var(--accent-primary);
    color: var(--fg-inverse);
}

::-webkit-scrollbar {
    width: 8px;
    height: 8px;
}

::-webkit-scrollbar-track {
    background: var(--bg-secondary);
}

::-webkit-scrollbar-thumb {
    background: var(--accent-primary);
    border-radius: var(--radius-full);
}

::-webkit-scrollbar-thumb:hover {
    background: var(--accent-secondary);
}

/* ========================================
   Utility Classes
   ======================================== */

.container {
    width: 100%;
    max-width: var(--container-max);
    margin: 0 auto;
    padding: 0 var(--container-padding);
}

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

.visually-hidden {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
}

/* ========================================
   Buttons
   ======================================== */

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-2);
    padding: var(--space-3) var(--space-6);
    font-family: var(--font-body);
    font-size: var(--text-sm);
    font-weight: 600;
    line-height: 1.5;
    border: none;
    border-radius: var(--radius-lg);
    cursor: pointer;
    transition: all var(--transition-base);
    text-decoration: none;
    white-space: nowrap;
}

.btn-primary {
    background: var(--gradient-primary);
    color: var(--fg-inverse);
    box-shadow: var(--shadow-glow);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 30px rgba(0, 212, 170, 0.4);
}

.btn-primary:active {
    transform: translateY(0);
}

.btn-secondary {
    background: var(--bg-card);
    color: var(--fg-primary);
    border: 1px solid var(--border-primary);
    backdrop-filter: blur(10px);
}

.btn-secondary:hover {
    background: var(--bg-tertiary);
    border-color: var(--border-accent);
    transform: translateY(-2px);
}

.btn-full {
    width: 100%;
}

.btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
    transform: none !important;
}

/* ========================================
   Navigation
   ======================================== */

.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: var(--z-nav);
    background: rgba(10, 15, 26, 0.85);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--border-primary);
    transition: all var(--transition-base);
}

.navbar.scrolled {
    background: rgba(10, 15, 26, 0.95);
    box-shadow: var(--shadow-md);
}

.nav-container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 72px;
    max-width: var(--container-max);
    margin: 0 auto;
    padding: 0 var(--container-padding);
}

.logo {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    text-decoration: none;
    color: var(--fg-primary);
    font-family: var(--font-display);
    font-weight: 700;
    font-size: var(--text-xl);
    transition: transform var(--transition-fast);
}

.logo:hover {
    transform: scale(1.02);
}

.logo-icon {
    width: 36px;
    height: 36px;
    background: var(--gradient-primary);
    border-radius: var(--radius-md);
}

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

.nav-links {
    display: flex;
    align-items: center;
    gap: var(--space-8);
}

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

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

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

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

.nav-toggle {
    display: none;
    width: 44px;
    height: 44px;
    background: transparent;
    border: none;
    cursor: pointer;
    padding: var(--space-2);
}

.hamburger {
    display: block;
    width: 24px;
    height: 2px;
    background: var(--fg-primary);
    border-radius: var(--radius-full);
    position: relative;
    transition: background var(--transition-base);
}

.hamburger::before,
.hamburger::after {
    content: '';
    position: absolute;
    left: 0;
    width: 24px;
    height: 2px;
    background: var(--fg-primary);
    border-radius: var(--radius-full);
    transition: transform var(--transition-base);
}

.hamburger::before { top: -7px; }
.hamburger::after { bottom: -7px; }

.nav-toggle.active .hamburger {
    background: transparent;
}

.nav-toggle.active .hamburger::before {
    transform: rotate(45deg) translate(5px, 5px);
}

.nav-toggle.active .hamburger::after {
    transform: rotate(-45deg) translate(5px, -5px);
}

/* ========================================
   Hero Section
   ======================================== */

.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    padding: var(--space-20) var(--container-padding) var(--space-16);
    overflow: hidden;
}

.hero-bg-elements {
    position: absolute;
    inset: 0;
    z-index: var(--z-bg);
    pointer-events: none;
}

.orb {
    position: absolute;
    border-radius: 50%;
    filter: blur(80px);
    opacity: 0.5;
    animation: orbFloat 20s ease-in-out infinite;
}

.orb-1 {
    width: 500px;
    height: 500px;
    background: var(--accent-primary);
    top: -100px;
    right: -100px;
    animation-delay: 0s;
}

.orb-2 {
    width: 400px;
    height: 400px;
    background: var(--accent-secondary);
    bottom: 20%;
    left: -100px;
    animation-delay: -7s;
}

.orb-3 {
    width: 300px;
    height: 300px;
    background: var(--accent-tertiary);
    top: 40%;
    right: 20%;
    animation-delay: -14s;
}

@keyframes orbFloat {
    0%, 100% { transform: translate(0, 0) scale(1); }
    25% { transform: translate(30px, -30px) scale(1.05); }
    50% { transform: translate(-20px, 20px) scale(0.95); }
    75% { transform: translate(20px, 30px) scale(1.02); }
}

.grid-overlay {
    position: absolute;
    inset: 0;
    background-image: 
        linear-gradient(rgba(0, 212, 170, 0.03) 1px, transparent 1px),
        linear-gradient(90deg, rgba(0, 212, 170, 0.03) 1px, transparent 1px);
    background-size: 60px 60px;
    animation: gridMove 20s linear infinite;
}

@keyframes gridMove {
    0% { transform: translate(0, 0); }
    100% { transform: translate(60px, 60px); }
}

.hero-content {
    position: relative;
    z-index: var(--z-content);
    max-width: 900px;
    text-align: center;
    animation: fadeInUp 1s var(--transition-spring);
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(40px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: var(--space-2);
    padding: var(--space-2) var(--space-4);
    background: var(--bg-glass);
    border: 1px solid var(--border-accent);
    border-radius: var(--radius-full);
    font-size: var(--text-sm);
    font-weight: 500;
    color: var(--fg-secondary);
    margin-bottom: var(--space-6);
    backdrop-filter: blur(10px);
}

.badge-dot {
    width: 8px;
    height: 8px;
    background: var(--accent-primary);
    border-radius: var(--radius-full);
    animation: pulse 2s ease-in-out infinite;
}

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

.hero-title {
    font-family: var(--font-display);
    font-size: clamp(var(--text-4xl), 8vw, var(--text-6xl));
    font-weight: 700;
    line-height: 1.1;
    margin-bottom: var(--space-6);
    letter-spacing: -0.02em;
}

.title-line {
    display: block;
}

.hero-description {
    font-size: clamp(var(--text-lg), 2.5vw, var(--text-xl));
    color: var(--fg-secondary);
    line-height: 1.7;
    max-width: 700px;
    margin: 0 auto var(--space-10);
}

.hero-actions {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: var(--space-4);
    margin-bottom: var(--space-16);
}

.hero-stats {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: var(--space-6);
    max-width: 800px;
    margin: 0 auto;
}

.stat {
    padding: var(--space-4);
    background: var(--bg-glass);
    border: 1px solid var(--border-primary);
    border-radius: var(--radius-xl);
    backdrop-filter: blur(10px);
    transition: all var(--transition-base);
}

.stat:hover {
    border-color: var(--border-accent);
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
}

.stat-number {
    display: block;
    font-family: var(--font-display);
    font-size: var(--text-3xl);
    font-weight: 700;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    line-height: 1;
    margin-bottom: var(--space-1);
}

.stat-label {
    font-size: var(--text-sm);
    color: var(--fg-muted);
    font-weight: 500;
}

.hero-scroll {
    position: absolute;
    bottom: var(--space-8);
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--space-2);
    color: var(--fg-muted);
    font-size: var(--text-xs);
    animation: bounce 2s ease-in-out infinite;
}

@keyframes bounce {
    0%, 20%, 50%, 80%, 100% { transform: translateX(-50%) translateY(0); }
    40% { transform: translateX(-50%) translateY(-10px); }
    60% { transform: translateX(-50%) translateY(-5px); }
}

/* ========================================
   Section Styles
   ======================================== */

section {
    padding: var(--space-20) var(--container-padding);
}

.section-header {
    text-align: center;
    margin-bottom: var(--space-16);
}

.section-tag {
    display: inline-block;
    padding: var(--space-1) var(--space-3);
    background: rgba(0, 212, 170, 0.1);
    border: 1px solid var(--border-accent);
    border-radius: var(--radius-full);
    font-size: var(--text-sm);
    font-weight: 600;
    color: var(--accent-primary);
    margin-bottom: var(--space-4);
}

.section-title {
    font-family: var(--font-display);
    font-size: clamp(var(--text-3xl), 5vw, var(--text-5xl));
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: var(--space-4);
    letter-spacing: -0.01em;
}

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

/* ========================================
   Services Section
   ======================================== */

.services {
    background: var(--bg-secondary);
    position: relative;
}

.services::before {
    content: '';
    position: absolute;
    top: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 100%;
    height: 100%;
    background: var(--gradient-hero);
    pointer-events: none;
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(340px, 1fr));
    gap: var(--space-6);
    position: relative;
    z-index: var(--z-content);
}

.service-card {
    position: relative;
    padding: var(--space-8);
    background: var(--gradient-card);
    border: 1px solid var(--border-primary);
    border-radius: var(--radius-2xl);
    backdrop-filter: blur(20px);
    transition: all var(--transition-base);
    overflow: hidden;
}

.service-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: var(--gradient-primary);
    transform: scaleX(0);
    transform-origin: left;
    transition: transform var(--transition-spring);
}

.service-card:hover {
    border-color: var(--border-accent);
    transform: translateY(-8px);
    box-shadow: var(--shadow-xl), var(--shadow-glow);
}

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

.service-icon {
    width: 56px;
    height: 56px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(0, 212, 170, 0.1);
    border: 1px solid var(--border-accent);
    border-radius: var(--radius-xl);
    color: var(--accent-primary);
    margin-bottom: var(--space-5);
    transition: all var(--transition-base);
}

.service-card:hover .service-icon {
    background: var(--accent-primary);
    color: var(--fg-inverse);
    transform: rotate(5deg) scale(1.05);
}

.service-title {
    font-family: var(--font-display);
    font-size: var(--text-xl);
    font-weight: 600;
    margin-bottom: var(--space-3);
}

.service-description {
    color: var(--fg-secondary);
    margin-bottom: var(--space-5);
    line-height: 1.7;
}

.service-features {
    list-style: none;
    margin-bottom: var(--space-6);
}

.service-features li {
    display: flex;
    align-items: flex-start;
    gap: var(--space-3);
    padding: var(--space-2) 0;
    color: var(--fg-secondary);
    font-size: var(--text-sm);
}

.check {
    flex-shrink: 0;
    width: 20px;
    height: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--accent-primary);
    color: var(--fg-inverse);
    border-radius: var(--radius-sm);
    font-size: 10px;
}

.service-link {
    display: inline-flex;
    align-items: center;
    gap: var(--space-2);
    color: var(--accent-primary);
    font-weight: 600;
    font-size: var(--text-sm);
    text-decoration: none;
    transition: gap var(--transition-fast);
}

.service-link:hover {
    gap: var(--space-3);
}

/* ========================================
   About Section
   ======================================== */

.about {
    position: relative;
}

.about-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-16);
    align-items: start;
}

.about-text {
    font-size: var(--text-lg);
    color: var(--fg-secondary);
    line-height: 1.8;
    margin-bottom: var(--space-6);
}

.about-text strong {
    color: var(--fg-primary);
}

.about-values {
    display: flex;
    flex-direction: column;
    gap: var(--space-5);
    margin-top: var(--space-8);
}

.value {
    display: flex;
    align-items: flex-start;
    gap: var(--space-4);
    padding: var(--space-4);
    background: var(--bg-glass);
    border: 1px solid var(--border-primary);
    border-radius: var(--radius-xl);
    backdrop-filter: blur(10px);
    transition: all var(--transition-base);
}

.value:hover {
    border-color: var(--border-accent);
    transform: translateX(4px);
}

.value-icon {
    flex-shrink: 0;
    width: 48px;
    height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(0, 212, 170, 0.1);
    border: 1px solid var(--border-accent);
    border-radius: var(--radius-lg);
    color: var(--accent-primary);
}

.value-text h4 {
    font-size: var(--text-base);
    font-weight: 600;
    margin-bottom: var(--space-1);
}

.value-text p {
    font-size: var(--text-sm);
    color: var(--fg-muted);
}

.about-visual {
    position: sticky;
    top: 100px;
}

.visual-card {
    background: var(--bg-card);
    border: 1px solid var(--border-primary);
    border-radius: var(--radius-2xl);
    overflow: hidden;
    box-shadow: var(--shadow-xl);
}

.code-window {
    background: var(--bg-primary);
    border-radius: var(--radius-xl) var(--radius-xl) 0 0;
    overflow: hidden;
}

.window-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--space-3) var(--space-4);
    background: var(--bg-tertiary);
    border-bottom: 1px solid var(--border-primary);
}

.window-controls {
    display: flex;
    gap: var(--space-2);
}

.control {
    width: 12px;
    height: 12px;
    border-radius: var(--radius-full);
}

.control.close { background: #ff5f57; }
.control.minimize { background: #febc2e; }
.control.maximize { background: #28ca42; }

.window-title {
    font-family: var(--font-mono);
    font-size: var(--text-sm);
    color: var(--fg-muted);
}

.code-content {
    padding: var(--space-6);
    overflow-x: auto;
    font-family: var(--font-mono);
    font-size: var(--text-sm);
    line-height: 1.7;
}

.code-content code {
    color: var(--fg-secondary);
}

.keyword { color: #c678dd; }
.class { color: #e5c07b; }
.function { color: #61afef; }
.self { color: #e06c75; }
.param { color: #d19a66; }
.number { color: #d19a66; }
.string { color: #98c379; }
.comment { color: var(--fg-muted); }

.metrics-display {
    display: flex;
    justify-content: space-around;
    padding: var(--space-6);
    background: var(--bg-tertiary);
    border-top: 1px solid var(--border-primary);
}

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

.metric-value {
    display: block;
    font-family: var(--font-display);
    font-size: var(--text-2xl);
    font-weight: 700;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    line-height: 1;
}

.metric-label {
    font-size: var(--text-xs);
    color: var(--fg-muted);
    text-transform: uppercase;
    letter-spacing: 0.1em;
}

/* ========================================
   Tech Stack
   ======================================== */

.tech-stack {
    background: var(--bg-secondary);
}

.tech-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(120px, 1fr));
    gap: var(--space-6);
    max-width: 900px;
    margin: 0 auto;
}

.tech-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--space-3);
    padding: var(--space-6);
    background: var(--bg-card);
    border: 1px solid var(--border-primary);
    border-radius: var(--radius-xl);
    transition: all var(--transition-base);
    backdrop-filter: blur(10px);
}

.tech-item:hover {
    border-color: var(--border-accent);
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
}

.tech-item img {
    width: 48px;
    height: 48px;
    filter: grayscale(100%) opacity(0.7);
    transition: all var(--transition-base);
}

.tech-item:hover img {
    filter: grayscale(0%) opacity(1);
    transform: scale(1.1);
}

.tech-item span {
    font-size: var(--text-sm);
    font-weight: 500;
    color: var(--fg-secondary);
}

/* ========================================
   Contact Section
   ======================================== */

.contact {
    position: relative;
}

.contact-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-16);
    max-width: 1000px;
    margin: 0 auto;
}

.contact-description {
    font-size: var(--text-lg);
    color: var(--fg-secondary);
    line-height: 1.7;
    margin-bottom: var(--space-8);
}

.contact-details {
    display: flex;
    flex-direction: column;
    gap: var(--space-5);
}

.contact-item {
    display: flex;
    align-items: center;
    gap: var(--space-4);
    padding: var(--space-4);
    background: var(--bg-glass);
    border: 1px solid var(--border-primary);
    border-radius: var(--radius-xl);
    backdrop-filter: blur(10px);
    transition: all var(--transition-base);
}

.contact-item:hover {
    border-color: var(--border-accent);
    transform: translateX(4px);
}

.contact-icon {
    flex-shrink: 0;
    width: 48px;
    height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(0, 212, 170, 0.1);
    border: 1px solid var(--border-accent);
    border-radius: var(--radius-lg);
    color: var(--accent-primary);
}

.contact-text h4 {
    font-size: var(--text-sm);
    font-weight: 600;
    color: var(--fg-muted);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: var(--space-1);
}

.contact-text a {
    color: var(--fg-primary);
    text-decoration: none;
    font-weight: 500;
    transition: color var(--transition-fast);
}

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

.contact-form {
    background: var(--bg-card);
    border: 1px solid var(--border-primary);
    border-radius: var(--radius-2xl);
    padding: var(--space-8);
    backdrop-filter: blur(20px);
}

.form-group {
    margin-bottom: var(--space-5);
}

.form-group label {
    display: block;
    font-size: var(--text-sm);
    font-weight: 600;
    margin-bottom: var(--space-2);
    color: var(--fg-primary);
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: var(--space-3) var(--space-4);
    background: var(--bg-primary);
    border: 1px solid var(--border-primary);
    border-radius: var(--radius-lg);
    color: var(--fg-primary);
    font-family: var(--font-body);
    font-size: var(--text-base);
    transition: all var(--transition-fast);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--accent-primary);
    box-shadow: 0 0 0 3px rgba(0, 212, 170, 0.2);
}

.form-group input::placeholder,
.form-group textarea::placeholder {
    color: var(--fg-muted);
}

.form-note {
    margin-top: var(--space-4);
    font-size: var(--text-sm);
    color: var(--fg-muted);
    text-align: center;
}

/* ========================================
   Footer
   ======================================== */

.footer {
    background: var(--bg-secondary);
    border-top: 1px solid var(--border-primary);
    padding: var(--space-16) var(--container-padding) var(--space-8);
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr repeat(3, 1fr);
    gap: var(--space-10);
    max-width: var(--container-max);
    margin: 0 auto var(--space-12);
}

.footer-brand p {
    color: var(--fg-secondary);
    margin: var(--space-4) 0 var(--space-6);
    line-height: 1.7;
}

.social-links {
    display: flex;
    gap: var(--space-3);
}

.social-link {
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--bg-tertiary);
    border: 1px solid var(--border-primary);
    border-radius: var(--radius-lg);
    color: var(--fg-secondary);
    transition: all var(--transition-base);
}

.social-link:hover {
    background: var(--accent-primary);
    border-color: var(--accent-primary);
    color: var(--fg-inverse);
    transform: translateY(-2px);
}

.footer-links h4 {
    font-size: var(--text-sm);
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--fg-muted);
    margin-bottom: var(--space-4);
}

.footer-links ul {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: var(--space-2);
}

.footer-links a {
    color: var(--fg-secondary);
    text-decoration: none;
    font-size: var(--text-sm);
    transition: color var(--transition-fast);
}

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

.footer-bottom {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-top: var(--space-8);
    border-top: 1px solid var(--border-primary);
    max-width: var(--container-max);
    margin: 0 auto;
    flex-wrap: wrap;
    gap: var(--space-4);
}

.footer-bottom p {
    color: var(--fg-muted);
    font-size: var(--text-sm);
}

.footer-badges {
    display: flex;
    gap: var(--space-2);
    flex-wrap: wrap;
}

.footer-badges .badge {
    padding: var(--space-1) var(--space-3);
    background: var(--bg-glass);
    border: 1px solid var(--border-primary);
    border-radius: var(--radius-full);
    font-size: var(--text-xs);
    font-weight: 500;
    color: var(--fg-muted);
}

/* ========================================
   Toast
   ======================================== */

.toast {
    position: fixed;
    bottom: var(--space-6);
    right: var(--space-6);
    z-index: var(--z-toast);
    transform: translateX(120%);
    transition: transform var(--transition-spring);
}

.toast.show {
    transform: translateX(0);
}

.toast-content {
    display: flex;
    align-items: center;
    gap: var(--space-3);
    padding: var(--space-3) var(--space-5);
    background: var(--bg-card);
    border: 1px solid var(--border-accent);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-xl);
    backdrop-filter: blur(20px);
}

.toast-icon {
    width: 20px;
    height: 20px;
    color: var(--accent-primary);
    flex-shrink: 0;
}

.toast-message {
    font-weight: 500;
}

/* ========================================
   Responsive
   ======================================== */

@media (max-width: 1024px) {
    .about-grid {
        grid-template-columns: 1fr;
        gap: var(--space-12);
    }
    
    .about-visual {
        position: static;
        max-width: 600px;
        margin: 0 auto;
    }
    
    .contact-grid {
        grid-template-columns: 1fr;
        gap: var(--space-12);
    }
    
    .footer-grid {
        grid-template-columns: 1fr 1fr;
        gap: var(--space-8);
    }
    
    .footer-brand {
        grid-column: span 2;
    }
}

@media (max-width: 768px) {
    :root {
        --container-padding: 1rem;
    }
    
    .nav-links {
        position: fixed;
        top: 72px;
        left: 0;
        right: 0;
        background: rgba(10, 15, 26, 0.98);
        backdrop-filter: blur(20px);
        flex-direction: column;
        padding: var(--space-6);
        gap: var(--space-4);
        border-bottom: 1px solid var(--border-primary);
        transform: translateY(-100%);
        opacity: 0;
        visibility: hidden;
        transition: all var(--transition-base);
    }
    
    .nav-links.active {
        transform: translateY(0);
        opacity: 1;
        visibility: visible;
    }
    
    .nav-toggle {
        display: flex;
        align-items: center;
        justify-content: center;
    }
    
    .hero-stats {
        grid-template-columns: repeat(2, 1fr);
        gap: var(--space-4);
    }
    
    .services-grid {
        grid-template-columns: 1fr;
    }
    
    .tech-grid {
        grid-template-columns: repeat(3, 1fr);
    }
    
    .footer-grid {
        grid-template-columns: 1fr;
        gap: var(--space-6);
    }
    
    .footer-brand {
        grid-column: span 1;
        text-align: center;
    }
    
    .social-links {
        justify-content: center;
    }
    
    .footer-bottom {
        flex-direction: column;
        text-align: center;
    }
    
    .footer-badges {
        justify-content: center;
    }
}

@media (max-width: 480px) {
    .hero-stats {
        grid-template-columns: 1fr;
    }
    
    .tech-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .service-card {
        padding: var(--space-6);
    }
    
    .contact-form {
        padding: var(--space-6);
    }
}

/* ========================================
   Animations
   ======================================== */

@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

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

.animate-on-scroll {
    opacity: 0;
    transform: translateY(30px);
    transition: all 0.8s ease-out;
}

.animate-on-scroll.visible {
    opacity: 1;
    transform: translateY(0);
}

/* Staggered animations */
.animate-on-scroll:nth-child(1) { transition-delay: 100ms; }
.animate-on-scroll:nth-child(2) { transition-delay: 200ms; }
.animate-on-scroll:nth-child(3) { transition-delay: 300ms; }
.animate-on-scroll:nth-child(4) { transition-delay: 400ms; }
.animate-on-scroll:nth-child(5) { transition-delay: 500ms; }
.animate-on-scroll:nth-child(6) { transition-delay: 600ms; }

/* ========================================
   Particle Canvas
   ======================================== */

#particle-canvas {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: -1;
    pointer-events: none;
}