:root {
    --bg-dark: #0a0e17;
    --bg-card: #111827;
    --bg-card-hover: #1a2234;
    --accent-teal: #00B5B8;
    --accent-teal-light: #2DD4BF;
    --accent-navy: #2D3E50;
    --accent-blue: #3b82f6;
    --accent-purple: #8b5cf6;
    --text-primary: #f8fafc;
    --text-secondary: #94a3b8;
    --text-muted: #64748b;
    --border: #1e293b;
    --gradient-teal: linear-gradient(135deg, #00B5B8 0%, #00B5B8 100%);
    --gradient-mesh: radial-gradient(ellipse at 20% 0%, rgba(0, 181, 184, 0.15) 0%, transparent 50%),
                    radial-gradient(ellipse at 80% 100%, rgba(59, 130, 246, 0.1) 0%, transparent 50%);
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'DM Sans', sans-serif;
    background: var(--bg-dark);
    color: var(--text-primary);
    line-height: 1.6;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

/* Scroll offset for fixed nav */
section[id] {
    scroll-margin-top: 60px;
}

.bg-mesh {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: var(--gradient-mesh);
    pointer-events: none;
    z-index: -1;
}

/* Navigation */
nav {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 100;
    padding: 0.75rem 1.5rem;
    background: rgba(10, 14, 23, 0.95);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--border);
}

.nav-container {
    max-width: 1280px;
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    align-items: center;
    position: relative;
}

.logo {
    display: flex;
    align-items: center;
    text-decoration: none;
}

.logo img {
    height: 28px;
    width: auto;
}

.nav-links {
    display: flex;
    gap: 2rem;
    list-style: none;
}

.nav-links a {
    color: var(--text-secondary);
    text-decoration: none;
    font-size: 0.875rem;
    font-weight: 500;
    transition: color 0.2s;
}

.nav-links a:hover,
.nav-links a.active {
    color: var(--accent-teal);
}

.nav-cta {
    background: var(--gradient-teal);
    color: var(--bg-dark);
    padding: 0.5rem 1rem;
    border-radius: 6px;
    text-decoration: none;
    font-weight: 600;
    font-size: 0.875rem;
    transition: transform 0.2s, box-shadow 0.2s;
}

.nav-cta:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 30px rgba(0, 181, 184, 0.3);
}

/* Mobile menu button */
.mobile-menu-btn {
    display: none;
    background: none;
    border: none;
    color: var(--text-primary);
    cursor: pointer;
    padding: 0.5rem;
    -webkit-tap-highlight-color: transparent;
}

.mobile-menu-btn svg {
    width: 24px;
    height: 24px;
    display: block;
}

/* Main Content */
main {
    flex: 1;
    padding-top: 60px;
}

.page-section {
    padding: 5rem 2rem;
}

.section-container {
    max-width: 1280px;
    margin: 0 auto;
    width: 100%;
}

.section-header {
    text-align: center;
    margin-bottom: 3rem;
}

.section-tag {
    font-family: 'JetBrains Mono', monospace;
    font-size: 0.875rem;
    color: var(--accent-teal);
    text-transform: uppercase;
    letter-spacing: 2px;
    margin-bottom: 1rem;
}

.section-title {
    font-size: clamp(2rem, 4vw, 3rem);
    font-weight: 700;
    margin-bottom: 1rem;
}

.section-subtitle {
    font-size: 1.125rem;
    color: var(--text-secondary);
    max-width: 600px;
    margin: 0 auto;
}

/* Buttons */
.btn-primary {
    background: var(--gradient-teal);
    color: var(--bg-dark);
    padding: 1rem 2rem;
    border-radius: 8px;
    text-decoration: none;
    font-weight: 600;
    font-size: 1rem;
    transition: transform 0.2s, box-shadow 0.2s;
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 12px 40px rgba(0, 181, 184, 0.35);
}

.btn-secondary {
    background: transparent;
    color: var(--text-primary);
    padding: 1rem 2rem;
    border-radius: 8px;
    text-decoration: none;
    font-weight: 600;
    font-size: 1rem;
    border: 1px solid var(--border);
    transition: background 0.2s, border-color 0.2s;
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
}

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

/* Cards */
.card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 16px;
    padding: 2rem;
    transition: transform 0.3s, border-color 0.3s, box-shadow 0.3s;
}

.card:hover {
    transform: translateY(-4px);
    border-color: rgba(0, 181, 184, 0.3);
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
}

/* Grids */
.grid-2 {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 1.5rem;
}

.grid-3 {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 1.5rem;
}

.grid-6 {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(120px, 1fr));
    gap: 1.5rem;
}

/* Footer */
footer {
    padding: 2rem;
    border-top: 1px solid var(--border);
    margin-top: auto;
}

.footer-container {
    max-width: 1280px;
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 1rem;
}

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

.footer-links {
    display: flex;
    gap: 2rem;
}

.footer-links a {
    color: var(--text-secondary);
    text-decoration: none;
    font-size: 0.875rem;
    transition: color 0.2s;
}

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

/* Responsive */
@media (max-width: 968px) {
    .nav-links {
        display: none;
    }
    
    .nav-cta {
        display: none;
    }
    
    .mobile-menu-btn {
        display: flex;
        align-items: center;
        justify-content: center;
    }
    
    /* Mobile menu when active */
    .nav-links.active {
        display: flex;
        flex-direction: column;
        position: fixed;
        top: 53px;
        left: 0;
        right: 0;
        background: rgba(10, 14, 23, 0.98);
        backdrop-filter: blur(20px);
        padding: 0.5rem 1.5rem;
        gap: 0;
        border-bottom: 1px solid var(--border);
        z-index: 99;
    }
    
    .nav-links.active li {
        padding: 0.875rem 0;
        border-bottom: 1px solid var(--border);
    }
    
    .nav-links.active li:last-child {
        border-bottom: none;
    }
    
    .nav-links.active a {
        font-size: 1rem;
    }
}

@media (max-width: 768px) {
    .page-section {
        padding: 3rem 1rem;
    }
    
    .hero {
        min-height: calc(100vh - 60px);
        padding: 2rem 1rem;
    }
    
    .hero h1 {
        font-size: 2rem;
    }
    
    .hero-subtitle {
        font-size: 1rem;
    }
    
    .hero-ctas {
        flex-direction: column;
    }
    
    .hero-ctas a {
        width: 100%;
        justify-content: center;
    }
    
    .stats {
        grid-template-columns: repeat(2, 1fr);
        gap: 1.5rem;
        padding: 2rem 0;
        margin-top: 2rem;
    }
    
    .stat-value {
        font-size: 1.75rem;
    }
    
    .section-title {
        font-size: 1.5rem;
    }
    
    .section-subtitle {
        font-size: 1rem;
    }
    
    .grid-3 {
        grid-template-columns: 1fr;
    }
    
    .tech-grid {
        grid-template-columns: repeat(3, 1fr);
        gap: 1rem;
    }
    
    .tech-item {
        padding: 1rem 0.5rem;
    }
    
    .tech-name {
        font-size: 0.75rem;
    }
    
    .features-grid {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }
    
    .models-grid {
        grid-template-columns: 1fr;
    }
    
    .contact-simple {
        padding: 0;
    }
    
    .contact-card {
        padding: 2rem 1.5rem;
    }
    
    .btn-primary, .btn-secondary {
        padding: 0.875rem 1.5rem;
        font-size: 0.9rem;
    }
    
    footer {
        padding: 1.5rem 1rem;
    }
    
    .footer-container {
        flex-direction: column;
        text-align: center;
        gap: 1rem;
    }
    
    .footer-links {
        gap: 1.5rem;
    }
}

@media (max-width: 480px) {
    nav {
        padding: 0.75rem 1rem;
    }
    
    .logo img {
        height: 22px;
    }
    
    .hero h1 {
        font-size: 1.75rem;
    }
    
    .stats {
        grid-template-columns: repeat(2, 1fr);
        gap: 1rem;
    }
    
    .stat-value {
        font-size: 1.5rem;
    }
    
    .stat-label {
        font-size: 0.75rem;
    }
    
    .tech-grid {
        grid-template-columns: repeat(3, 1fr);
        gap: 0.75rem;
    }
    
    .tech-icon img {
        width: 28px;
        height: 28px;
    }
    
    .card {
        padding: 1.25rem;
    }
    
    .service-header {
        flex-direction: column;
        align-items: flex-start;
        gap: 0.75rem;
    }
    
    .model-card {
        padding: 1.5rem;
    }
}

/* Page-specific styles */

/* Home Hero */
.hero {
    min-height: calc(100vh - 60px);
    display: flex;
    flex-direction: column;
    justify-content: center;
    padding: 3rem 2rem;
}

.hero-container {
    max-width: 1280px;
    margin: 0 auto;
    width: 100%;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    background: rgba(0, 181, 184, 0.1);
    border: 1px solid rgba(0, 181, 184, 0.2);
    padding: 0.5rem 1rem;
    border-radius: 100px;
    font-size: 0.875rem;
    color: var(--accent-teal);
    margin-bottom: 2rem;
}

.hero-badge::before {
    content: '';
    width: 8px;
    height: 8px;
    background: var(--accent-teal);
    border-radius: 50%;
    animation: pulse 2s infinite;
}

@keyframes pulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.5; }
}

.hero h1 {
    font-size: clamp(2.5rem, 6vw, 4.5rem);
    font-weight: 700;
    line-height: 1.1;
    margin-bottom: 1.5rem;
}

.hero h1 .gradient {
    background: var(--gradient-teal);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-subtitle {
    font-size: 1.25rem;
    color: var(--text-secondary);
    max-width: 600px;
    margin-bottom: 2.5rem;
}

.hero-ctas {
    display: flex;
    gap: 1rem;
    flex-wrap: wrap;
}

.stats {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    gap: 2rem;
    padding: 4rem 0;
    margin-top: 4rem;
    border-top: 1px solid var(--border);
}

.stat {
    text-align: center;
}

.stat-value {
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--accent-teal);
    font-family: 'JetBrains Mono', monospace;
}

.stat-label {
    font-size: 0.875rem;
    color: var(--text-muted);
    margin-top: 0.25rem;
}

/* Services - Compact */
.service-card {
    position: relative;
    overflow: hidden;
    padding: 1.5rem;
}

.service-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: var(--gradient-teal);
    opacity: 0;
    transition: opacity 0.3s;
}

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

.service-header {
    display: flex;
    align-items: center;
    gap: 1rem;
    margin-bottom: 0.75rem;
}

.service-icon {
    width: 40px;
    height: 40px;
    background: rgba(0, 181, 184, 0.1);
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.25rem;
    flex-shrink: 0;
}

.service-card h3 {
    font-size: 1.1rem;
    font-weight: 600;
    margin: 0;
}

.service-card p {
    color: var(--text-secondary);
    font-size: 0.9rem;
    line-height: 1.5;
}

/* Technologies */
.tech-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
    gap: 1.5rem;
    max-width: 1000px;
    margin: 0 auto;
}

.tech-item {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 12px;
    padding: 2rem 1rem;
    text-align: center;
    transition: transform 0.2s, border-color 0.2s;
}

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

.tech-icon {
    height: 48px;
    margin-bottom: 0.75rem;
    display: flex;
    align-items: center;
    justify-content: center;
}

.tech-icon img {
    width: 36px;
    height: 36px;
    object-fit: contain;
}

.tech-name {
    font-size: 0.95rem;
    font-weight: 500;
}

/* Features */
.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
}

.feature {
    display: flex;
    gap: 1rem;
}

.feature-icon {
    flex-shrink: 0;
    width: 48px;
    height: 48px;
    background: rgba(0, 181, 184, 0.1);
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--accent-teal);
    font-size: 1.25rem;
}

.feature h3 {
    font-size: 1.125rem;
    font-weight: 600;
    margin-bottom: 0.5rem;
}

.feature p {
    color: var(--text-secondary);
    font-size: 0.95rem;
}

/* Track Record Card */
.track-record-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 16px;
    padding: 2.5rem;
    margin-top: 3rem;
    text-align: center;
}

.track-record-card h3 {
    font-size: 1.25rem;
    margin-bottom: 1.5rem;
}

/* Engagement Models */
.models-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 1.5rem;
}

.model-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 16px;
    padding: 2.5rem 2rem;
    text-align: center;
    transition: transform 0.3s, border-color 0.3s;
}

.model-card:hover {
    transform: translateY(-4px);
    border-color: rgba(0, 181, 184, 0.3);
}

.model-card.featured {
    border-color: var(--accent-teal);
    position: relative;
}

.model-card.featured::before {
    content: 'Most Popular';
    position: absolute;
    top: -12px;
    left: 50%;
    transform: translateX(-50%);
    background: var(--gradient-teal);
    color: var(--bg-dark);
    font-size: 0.75rem;
    font-weight: 600;
    padding: 0.35rem 1rem;
    border-radius: 100px;
}

.model-title {
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: 0.5rem;
}

.model-desc {
    color: var(--text-secondary);
    margin-bottom: 1.5rem;
}

.model-features {
    list-style: none;
    text-align: left;
    margin-bottom: 2rem;
}

.model-features li {
    padding: 0.5rem 0;
    padding-left: 1.5rem;
    position: relative;
    color: var(--text-secondary);
    font-size: 0.95rem;
}

.model-features li::before {
    content: '✓';
    position: absolute;
    left: 0;
    color: var(--accent-teal);
    font-weight: 600;
}

/* Engagement CTA Box */
.engagement-cta-box {
    background: linear-gradient(135deg, rgba(0, 181, 184, 0.1) 0%, rgba(0, 165, 168, 0.05) 100%);
    border: 1px solid rgba(0, 181, 184, 0.2);
    border-radius: 16px;
    padding: 1.5rem 2rem;
    margin-top: 3rem;
    text-align: center;
}

.engagement-cta-box p {
    font-size: 1rem;
    color: var(--text-secondary);
}

.engagement-cta-box p.highlight {
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--accent-teal);
    margin-top: 0.5rem;
}

/* Contact */
.contact-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: start;
}

@media (max-width: 768px) {
    .contact-grid {
        grid-template-columns: 1fr;
    }
}

.contact-simple {
    max-width: 600px;
    margin: 0 auto;
    text-align: center;
}

.contact-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 16px;
    padding: 3rem;
}

.contact-card .contact-icon {
    color: var(--accent-teal);
    margin-bottom: 1.5rem;
}

.contact-card h3 {
    font-size: 1.5rem;
    margin-bottom: 1rem;
}

.contact-card p {
    color: var(--text-secondary);
}

.contact-info h3 {
    font-size: 1.5rem;
    margin-bottom: 1rem;
}

.contact-info > p {
    color: var(--text-secondary);
    margin-bottom: 2rem;
}

.contact-methods {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.contact-method {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.contact-method-icon {
    width: 48px;
    height: 48px;
    background: rgba(0, 181, 184, 0.1);
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--accent-teal);
}

.contact-method-text a {
    color: var(--text-primary);
    text-decoration: none;
}

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

.contact-form {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 16px;
    padding: 2rem;
}

.form-group {
    margin-bottom: 1.5rem;
}

.form-group label {
    display: block;
    font-size: 0.875rem;
    font-weight: 500;
    margin-bottom: 0.5rem;
}

.form-group input,
.form-group textarea {
    width: 100%;
    background: var(--bg-dark);
    border: 1px solid var(--border);
    border-radius: 8px;
    padding: 0.875rem 1rem;
    font-family: inherit;
    font-size: 1rem;
    color: var(--text-primary);
    transition: border-color 0.2s;
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--accent-teal);
}

.form-group textarea {
    min-height: 120px;
    resize: vertical;
}

.form-submit {
    width: 100%;
    background: var(--gradient-teal);
    color: var(--bg-dark);
    border: none;
    padding: 1rem;
    border-radius: 8px;
    font-family: inherit;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: transform 0.2s, box-shadow 0.2s;
}

.form-submit:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 30px rgba(0, 181, 184, 0.3);
}