/* ==========================================
   NiravC - Professional IT Solutions
   Modern Dark Theme Design
   ========================================== */

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

:root {
    /* Colors */
    --bg-primary: #0a0a0f;
    --bg-secondary: #12121a;
    --bg-tertiary: #1a1a25;
    --bg-card: rgba(26, 26, 37, 0.6);
    --bg-card-hover: rgba(35, 35, 50, 0.8);
    
    /* Accent Colors */
    --accent: #00d4ff;
    --accent-secondary: #7c3aed;
    --accent-gradient: linear-gradient(135deg, #00d4ff 0%, #7c3aed 100%);
    --accent-glow: rgba(0, 212, 255, 0.15);
    
    /* Text Colors */
    --text-primary: #ffffff;
    --text-secondary: #a1a1aa;
    --text-muted: #71717a;
    
    /* Borders */
    --border: rgba(255, 255, 255, 0.08);
    --border-hover: rgba(0, 212, 255, 0.3);
    
    /* Effects */
    --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.3);
    --shadow-md: 0 8px 24px rgba(0, 0, 0, 0.4);
    --shadow-lg: 0 16px 48px rgba(0, 0, 0, 0.5);
    --shadow-glow: 0 0 40px rgba(0, 212, 255, 0.15);
    
    /* Transitions */
    --transition-fast: 0.15s ease;
    --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-slow: 0.5s cubic-bezier(0.4, 0, 0.2, 1);
    
    /* Spacing */
    --container-width: 1200px;
    --section-padding: 120px;
}

html {
    scroll-behavior: smooth;
    scrollbar-width: thin;
    scrollbar-color: var(--accent) var(--bg-secondary);
}

body {
    font-family: 'Outfit', -apple-system, BlinkMacSystemFont, sans-serif;
    font-size: 16px;
    line-height: 1.6;
    color: var(--text-primary);
    background: var(--bg-primary);
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

body.loading {
    overflow: hidden;
}

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

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

::-webkit-scrollbar-thumb {
    background: var(--accent);
    border-radius: 4px;
}

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

.container {
    width: 100%;
    max-width: var(--container-width);
    margin: 0 auto;
    padding: 0 24px;
}

/* Cursor Glow Effect */
.cursor-glow {
    position: fixed;
    width: 500px;
    height: 500px;
    background: radial-gradient(circle, var(--accent-glow) 0%, transparent 70%);
    pointer-events: none;
    z-index: 0;
    opacity: 0;
    transition: opacity 0.3s ease;
    transform: translate(-50%, -50%);
}

body:hover .cursor-glow {
    opacity: 1;
}

/* ==========================================
   Navigation
   ========================================== */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    padding: 20px 0;
    transition: var(--transition);
}

.navbar.scrolled {
    background: rgba(10, 10, 15, 0.9);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--border);
    padding: 16px 0;
}

.nav-container {
    max-width: var(--container-width);
    margin: 0 auto;
    padding: 0 24px;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.logo {
    display: flex;
    align-items: center;
    gap: 12px;
    text-decoration: none;
    color: var(--text-primary);
}

.logo-img {
    width: 44px;
    height: 44px;
    object-fit: contain;
}

.logo-text {
    font-size: 1.25rem;
    font-weight: 700;
    letter-spacing: -0.02em;
}

.nav-menu {
    display: flex;
    align-items: center;
    gap: 8px;
    list-style: none;
}

.nav-link {
    display: inline-block;
    padding: 10px 20px;
    color: var(--text-secondary);
    text-decoration: none;
    font-weight: 500;
    font-size: 0.95rem;
    border-radius: 8px;
    transition: var(--transition);
}

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

.nav-link.nav-cta {
    background: var(--accent-gradient);
    color: var(--bg-primary);
    font-weight: 600;
}

.nav-link.nav-cta:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-glow);
}

.mobile-toggle {
    display: none;
    flex-direction: column;
    gap: 6px;
    padding: 8px;
    background: none;
    border: none;
    cursor: pointer;
}

.mobile-toggle span {
    width: 24px;
    height: 2px;
    background: var(--text-primary);
    border-radius: 2px;
    transition: var(--transition);
}

/* ==========================================
   Hero Section
   ========================================== */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    padding: 140px 24px 80px;
    overflow: hidden;
}

.hero-grid {
    position: absolute;
    inset: 0;
    background-image: 
        linear-gradient(rgba(0, 212, 255, 0.03) 1px, transparent 1px),
        linear-gradient(90deg, rgba(0, 212, 255, 0.03) 1px, transparent 1px);
    background-size: 60px 60px;
    mask-image: radial-gradient(ellipse 80% 80% at 50% 50%, black 40%, transparent 100%);
    -webkit-mask-image: radial-gradient(ellipse 80% 80% at 50% 50%, black 40%, transparent 100%);
}

.hero-gradient {
    position: absolute;
    inset: 0;
    background: 
        radial-gradient(circle at 20% 30%, rgba(0, 212, 255, 0.12) 0%, transparent 50%),
        radial-gradient(circle at 80% 70%, rgba(124, 58, 237, 0.12) 0%, transparent 50%);
    pointer-events: none;
}

.hero-content {
    position: relative;
    z-index: 2;
    max-width: 640px;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    padding: 8px 16px 8px 12px;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 50px;
    font-size: 0.875rem;
    color: var(--text-secondary);
    margin-bottom: 32px;
    animation: fadeInUp 0.6s ease backwards;
}

.badge-dot {
    width: 8px;
    height: 8px;
    background: #22c55e;
    border-radius: 50%;
    animation: pulse-dot 2s ease-in-out infinite;
}

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

.hero-title {
    font-size: clamp(2.5rem, 6vw, 4rem);
    font-weight: 800;
    line-height: 1.1;
    letter-spacing: -0.03em;
    margin-bottom: 24px;
}

.title-line {
    display: block;
    animation: fadeInUp 0.6s ease backwards;
}

.title-line:nth-child(1) { animation-delay: 0.1s; }
.title-line:nth-child(2) { animation-delay: 0.2s; }
.title-line:nth-child(3) { animation-delay: 0.3s; }

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

.hero-subtitle {
    font-size: 1.125rem;
    color: var(--text-secondary);
    line-height: 1.8;
    margin-bottom: 40px;
    max-width: 540px;
    animation: fadeInUp 0.6s ease 0.4s backwards;
}

.hero-actions {
    display: flex;
    gap: 16px;
    margin-bottom: 56px;
    animation: fadeInUp 0.6s ease 0.5s backwards;
}

.hero-stats {
    display: flex;
    gap: 40px;
    animation: fadeInUp 0.6s ease 0.6s backwards;
}

.hero-stat {
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.stat-value {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--accent);
    font-family: 'JetBrains Mono', monospace;
}

.stat-label {
    font-size: 0.875rem;
    color: var(--text-muted);
}

.hero-visual {
    position: absolute;
    right: 5%;
    top: 50%;
    transform: translateY(-50%);
    z-index: 1;
    animation: fadeInRight 0.8s ease 0.3s backwards;
}

/* Terminal Window */
.terminal-window {
    width: 420px;
    background: var(--bg-secondary);
    border: 1px solid var(--border);
    border-radius: 12px;
    overflow: hidden;
    box-shadow: var(--shadow-lg), var(--shadow-glow);
}

.terminal-header {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 14px 16px;
    background: var(--bg-tertiary);
    border-bottom: 1px solid var(--border);
}

.terminal-dots {
    display: flex;
    gap: 8px;
}

.terminal-dots span {
    width: 12px;
    height: 12px;
    border-radius: 50%;
}

.terminal-dots span:nth-child(1) { background: #ff5f57; }
.terminal-dots span:nth-child(2) { background: #febc2e; }
.terminal-dots span:nth-child(3) { background: #28c840; }

.terminal-title {
    font-family: 'JetBrains Mono', monospace;
    font-size: 0.8rem;
    color: var(--text-muted);
}

.terminal-body {
    padding: 20px;
    font-family: 'JetBrains Mono', monospace;
    font-size: 0.85rem;
    line-height: 2;
}

.terminal-line {
    display: flex;
    gap: 12px;
}

.terminal-line.output {
    color: var(--text-secondary);
}

.prompt {
    color: var(--accent);
}

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

.success {
    color: #22c55e;
}

.status {
    font-weight: 600;
}

.status.online {
    color: #22c55e;
}

.typing .cursor {
    animation: blink 1s step-end infinite;
}

@keyframes blink {
    0%, 100% { opacity: 1; }
    50% { opacity: 0; }
}

/* ==========================================
   Buttons
   ========================================== */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    padding: 14px 28px;
    font-family: inherit;
    font-size: 1rem;
    font-weight: 600;
    text-decoration: none;
    border-radius: 10px;
    border: none;
    cursor: pointer;
    transition: var(--transition);
}

.btn svg {
    width: 18px;
    height: 18px;
    transition: transform var(--transition);
}

.btn-primary {
    background: var(--accent-gradient);
    color: var(--bg-primary);
    box-shadow: 0 4px 20px rgba(0, 212, 255, 0.25);
}

.btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 30px rgba(0, 212, 255, 0.35);
}

.btn-primary:hover svg {
    transform: translateX(4px);
}

.btn-ghost {
    background: transparent;
    color: var(--text-primary);
    border: 1px solid var(--border);
}

.btn-ghost:hover {
    background: var(--bg-card);
    border-color: var(--border-hover);
}

.btn-full {
    width: 100%;
}

/* ==========================================
   Section Styles
   ========================================== */
section {
    position: relative;
    padding: var(--section-padding) 0;
}

.section-header {
    text-align: center;
    margin-bottom: 64px;
}

.section-tag {
    display: inline-block;
    padding: 6px 14px;
    background: var(--accent-glow);
    color: var(--accent);
    font-size: 0.8rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    border-radius: 50px;
    margin-bottom: 20px;
}

.section-title {
    font-size: clamp(2rem, 4vw, 2.75rem);
    font-weight: 800;
    letter-spacing: -0.02em;
    margin-bottom: 16px;
}

.section-subtitle {
    font-size: 1.1rem;
    color: var(--text-secondary);
    max-width: 600px;
    margin: 0 auto;
}

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

.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 24px;
}

.service-card {
    position: relative;
    padding: 32px;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 16px;
    transition: var(--transition);
    overflow: hidden;
}

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

.service-card:hover {
    transform: translateY(-8px);
    background: var(--bg-card-hover);
    border-color: var(--border-hover);
    box-shadow: var(--shadow-lg);
}

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

.service-card.featured {
    grid-column: span 2;
    background: linear-gradient(135deg, rgba(0, 212, 255, 0.05) 0%, rgba(124, 58, 237, 0.05) 100%);
    border-color: rgba(0, 212, 255, 0.2);
}

.service-icon {
    width: 56px;
    height: 56px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--accent-glow);
    border-radius: 12px;
    margin-bottom: 24px;
    color: var(--accent);
    transition: var(--transition);
}

.service-card:hover .service-icon {
    transform: scale(1.1);
    box-shadow: var(--shadow-glow);
}

.service-icon svg {
    width: 28px;
    height: 28px;
}

.service-title {
    font-size: 1.25rem;
    font-weight: 700;
    margin-bottom: 12px;
    letter-spacing: -0.01em;
}

.service-desc {
    color: var(--text-secondary);
    line-height: 1.7;
    margin-bottom: 20px;
}

.service-features {
    list-style: none;
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}

.service-features li {
    display: flex;
    align-items: center;
    gap: 6px;
    font-size: 0.85rem;
    color: var(--text-muted);
}

.service-features li::before {
    content: '→';
    color: var(--accent);
    font-weight: 600;
}

/* ==========================================
   Expertise Section
   ========================================== */
.expertise {
    background: var(--bg-primary);
}

.expertise-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(340px, 1fr));
    gap: 24px;
}

.expertise-card {
    padding: 32px;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 16px;
    transition: var(--transition);
}

.expertise-card:hover {
    border-color: var(--border-hover);
    transform: translateY(-4px);
}

.expertise-header {
    display: flex;
    align-items: center;
    gap: 16px;
    margin-bottom: 24px;
}

.expertise-icon {
    width: 48px;
    height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--accent-gradient);
    border-radius: 12px;
    color: var(--bg-primary);
}

.expertise-icon svg {
    width: 24px;
    height: 24px;
}

.expertise-header h3 {
    font-size: 1.125rem;
    font-weight: 700;
}

.tech-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
}

.tech-tag {
    padding: 8px 14px;
    background: var(--bg-tertiary);
    border: 1px solid var(--border);
    border-radius: 8px;
    font-size: 0.85rem;
    color: var(--text-secondary);
    font-family: 'JetBrains Mono', monospace;
    transition: var(--transition);
}

.expertise-card:hover .tech-tag {
    border-color: var(--border-hover);
    color: var(--text-primary);
}

/* ==========================================
   About Section
   ========================================== */
.about {
    background: var(--bg-secondary);
}

.about-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 80px;
    align-items: center;
}

.about-content .section-tag {
    margin-bottom: 16px;
}

.about-content .section-title {
    text-align: left;
    margin-bottom: 24px;
}

.about-text {
    color: var(--text-secondary);
    font-size: 1.05rem;
    line-height: 1.8;
    margin-bottom: 16px;
}

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

.about-features {
    display: grid;
    gap: 20px;
    margin-top: 40px;
}

.about-feature {
    display: flex;
    gap: 16px;
    padding: 20px;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 12px;
    transition: var(--transition);
}

.about-feature:hover {
    border-color: var(--border-hover);
    transform: translateX(8px);
}

.feature-icon {
    width: 44px;
    height: 44px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--accent-glow);
    border-radius: 10px;
    color: var(--accent);
    flex-shrink: 0;
}

.feature-icon svg {
    width: 22px;
    height: 22px;
}

.feature-content h4 {
    font-size: 1rem;
    font-weight: 600;
    margin-bottom: 4px;
}

.feature-content p {
    font-size: 0.9rem;
    color: var(--text-muted);
}

/* Code Block */
.about-visual {
    position: relative;
}

.code-block {
    background: var(--bg-tertiary);
    border: 1px solid var(--border);
    border-radius: 12px;
    overflow: hidden;
    box-shadow: var(--shadow-lg);
}

.code-header {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 14px 16px;
    background: rgba(0, 0, 0, 0.3);
    border-bottom: 1px solid var(--border);
}

.code-dot {
    width: 10px;
    height: 10px;
    border-radius: 50%;
    background: var(--text-muted);
}

.code-dot:nth-child(1) { background: #ff5f57; }
.code-dot:nth-child(2) { background: #febc2e; }
.code-dot:nth-child(3) { background: #28c840; }

.code-filename {
    font-family: 'JetBrains Mono', monospace;
    font-size: 0.8rem;
    color: var(--text-muted);
    margin-left: auto;
}

.code-content {
    padding: 24px;
    font-family: 'JetBrains Mono', monospace;
    font-size: 0.85rem;
    line-height: 1.8;
    color: var(--text-secondary);
    overflow-x: auto;
}

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

/* ==========================================
   Contact Section
   ========================================== */
.contact {
    background: var(--bg-primary);
}

.contact-grid {
    display: grid;
    grid-template-columns: 1fr 1.2fr;
    gap: 80px;
    align-items: start;
}

.contact-info .section-tag {
    margin-bottom: 16px;
}

.contact-info .section-title {
    text-align: left;
    margin-bottom: 20px;
}

.contact-text {
    color: var(--text-secondary);
    font-size: 1.05rem;
    line-height: 1.8;
    margin-bottom: 40px;
}

.contact-methods {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.contact-method {
    display: flex;
    align-items: center;
    gap: 16px;
    padding: 20px;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 12px;
    text-decoration: none;
    color: inherit;
    transition: var(--transition);
}

.contact-method:hover {
    border-color: var(--border-hover);
    transform: translateX(8px);
}

.method-icon {
    width: 48px;
    height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--accent-gradient);
    border-radius: 12px;
    color: var(--bg-primary);
}

.method-icon svg {
    width: 24px;
    height: 24px;
}

.method-details {
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.method-label {
    font-size: 0.85rem;
    color: var(--text-muted);
}

.method-value {
    font-weight: 600;
    color: var(--text-primary);
}

/* Contact Form */
.contact-form-wrapper {
    padding: 40px;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 20px;
}

.contact-form {
    display: flex;
    flex-direction: column;
    gap: 24px;
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.form-group label {
    font-size: 0.9rem;
    font-weight: 500;
    color: var(--text-secondary);
}

.form-group input,
.form-group textarea {
    padding: 14px 18px;
    background: var(--bg-tertiary);
    border: 1px solid var(--border);
    border-radius: 10px;
    font-family: inherit;
    font-size: 1rem;
    color: var(--text-primary);
    transition: var(--transition);
}

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

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--accent);
    box-shadow: 0 0 0 3px var(--accent-glow);
}

.form-group textarea {
    resize: vertical;
    min-height: 140px;
}

/* ==========================================
   Footer
   ========================================== */
.footer {
    padding: 60px 0 40px;
    background: var(--bg-secondary);
    border-top: 1px solid var(--border);
}

.footer-content {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 32px;
}

.footer-brand {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 12px;
}

.footer-logo {
    width: 56px;
    height: 56px;
    object-fit: contain;
}

.footer-tagline {
    color: var(--text-muted);
    font-size: 0.95rem;
}

.footer-links {
    display: flex;
    gap: 32px;
}

.footer-links a {
    color: var(--text-secondary);
    text-decoration: none;
    font-size: 0.95rem;
    transition: var(--transition);
}

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

.footer-copyright {
    color: var(--text-muted);
    font-size: 0.875rem;
}

/* ==========================================
   Scroll to Top
   ========================================== */
.scroll-top {
    position: fixed;
    bottom: 32px;
    right: 32px;
    width: 48px;
    height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--accent-gradient);
    border: none;
    border-radius: 12px;
    color: var(--bg-primary);
    cursor: pointer;
    opacity: 0;
    visibility: hidden;
    transform: translateY(20px);
    transition: var(--transition);
    z-index: 999;
}

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

.scroll-top:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-glow);
}

.scroll-top svg {
    width: 22px;
    height: 22px;
}

/* ==========================================
   Loader
   ========================================== */
.loader {
    position: fixed;
    inset: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--bg-primary);
    z-index: 9999;
    transition: opacity 0.5s ease, visibility 0.5s ease;
}

.loader.hidden {
    opacity: 0;
    visibility: hidden;
}

.loader-content {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 32px;
}

.loader-logo {
    animation: pulse-scale 1.5s ease-in-out infinite;
}

.loader-logo img {
    width: 80px;
    height: 80px;
    object-fit: contain;
}

.loader-bar {
    width: 200px;
    height: 4px;
    background: var(--bg-tertiary);
    border-radius: 4px;
    overflow: hidden;
}

.loader-progress {
    width: 0;
    height: 100%;
    background: var(--accent-gradient);
    border-radius: 4px;
    animation: loading 1s ease-in-out forwards;
}

@keyframes loading {
    0% { width: 0; }
    100% { width: 100%; }
}

@keyframes pulse-scale {
    0%, 100% { transform: scale(1); }
    50% { transform: scale(1.05); }
}

/* ==========================================
   Animations
   ========================================== */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes fadeInRight {
    from {
        opacity: 0;
        transform: translate(50px, -50%);
    }
    to {
        opacity: 1;
        transform: translate(0, -50%);
    }
}

/* Scroll Animations */
.animate-on-scroll {
    opacity: 0;
    transform: translateY(40px);
    transition: opacity 0.6s ease, transform 0.6s ease;
}

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

/* ==========================================
   Responsive Design
   ========================================== */
@media (max-width: 1200px) {
    .hero-visual {
        display: none;
    }
    
    .hero-content {
        max-width: 700px;
    }
    
    .service-card.featured {
        grid-column: span 1;
    }
}

@media (max-width: 992px) {
    :root {
        --section-padding: 80px;
    }
    
    .about-grid,
    .contact-grid {
        grid-template-columns: 1fr;
        gap: 48px;
    }
    
    .about-visual {
        order: -1;
    }
    
    .expertise-grid {
        grid-template-columns: 1fr 1fr;
    }
}

@media (max-width: 768px) {
    .nav-menu {
        position: fixed;
        top: 0;
        left: 0;
        right: 0;
        bottom: 0;
        flex-direction: column;
        justify-content: center;
        align-items: center;
        gap: 24px;
        background: var(--bg-primary);
        opacity: 0;
        visibility: hidden;
        transition: var(--transition);
    }
    
    .nav-menu.active {
        opacity: 1;
        visibility: visible;
    }
    
    .nav-menu .nav-link {
        font-size: 1.5rem;
        padding: 16px 32px;
    }
    
    .mobile-toggle {
        display: flex;
        position: relative;
        z-index: 1001;
    }
    
    .mobile-toggle.active span:nth-child(1) {
        transform: rotate(45deg) translate(6px, 6px);
    }
    
    .mobile-toggle.active span:nth-child(2) {
        opacity: 0;
    }
    
    .mobile-toggle.active span:nth-child(3) {
        transform: rotate(-45deg) translate(6px, -6px);
    }
    
    .hero {
        padding: 120px 20px 60px;
        min-height: auto;
    }
    
    .hero-actions {
        flex-direction: column;
    }
    
    .hero-stats {
        justify-content: space-between;
        gap: 20px;
    }
    
    .services-grid,
    .expertise-grid {
        grid-template-columns: 1fr;
    }
    
    .form-row {
        grid-template-columns: 1fr;
    }
    
    .footer-links {
        flex-wrap: wrap;
        justify-content: center;
        gap: 16px 24px;
    }
    
    .contact-form-wrapper {
        padding: 24px;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 16px;
    }
    
    .hero-title {
        font-size: 2rem;
    }
    
    .section-title {
        font-size: 1.75rem;
    }
    
    .service-card,
    .expertise-card {
        padding: 24px;
    }
    
    .scroll-top {
        bottom: 20px;
        right: 20px;
        width: 44px;
        height: 44px;
    }
}

/* ==========================================
   Form States & Notifications
   ========================================== */
.form-group input.error,
.form-group textarea.error {
    border-color: #ef4444;
    background: rgba(239, 68, 68, 0.1);
}

.form-group input.error:focus,
.form-group textarea.error:focus {
    box-shadow: 0 0 0 3px rgba(239, 68, 68, 0.2);
}

.error-message {
    color: #ef4444;
    font-size: 0.85rem;
    margin-top: 4px;
}

.notification {
    position: fixed;
    top: 100px;
    right: 24px;
    max-width: 380px;
    padding: 16px 20px;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 12px;
    box-shadow: var(--shadow-lg);
    transform: translateX(120%);
    transition: transform 0.3s ease;
    z-index: 10000;
}

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

.notification-success {
    border-left: 4px solid #22c55e;
}

.notification-error {
    border-left: 4px solid #ef4444;
}

.btn-spinner {
    width: 16px;
    height: 16px;
    border: 2px solid transparent;
    border-top-color: currentColor;
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
}

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