:root {
    --bg-dark: #070a12;
    --bg-surface: #0e1526;
    --bg-card: rgba(18, 27, 47, 0.7);
    --bg-card-hover: rgba(26, 38, 66, 0.85);
    --border-subtle: rgba(56, 189, 248, 0.12);
    --border-bright: rgba(56, 189, 248, 0.35);
    
    --primary: #38bdf8;
    --primary-glow: rgba(56, 189, 248, 0.25);
    --accent: #6366f1;
    --accent-glow: rgba(99, 102, 241, 0.25);
    --success: #10b981;
    
    --text-primary: #f8fafc;
    --text-secondary: #94a3b8;
    --text-muted: #64748b;
    
    --font-main: 'Plus Jakarta Sans', system-ui, -apple-system, sans-serif;
    --font-mono: 'JetBrains Mono', monospace;
    
    --radius-sm: 8px;
    --radius-md: 14px;
    --radius-lg: 20px;
    --radius-full: 9999px;
    --transition: all 0.25s cubic-bezier(0.16, 1, 0.3, 1);
}

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

html {
    scroll-behavior: smooth;
}

body {
    background-color: var(--bg-dark);
    color: var(--text-primary);
    font-family: var(--font-main);
    line-height: 1.6;
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
}

body::before {
    content: '';
    position: fixed;
    top: 0;
    left: 20%;
    width: 60vw;
    height: 40vw;
    background: radial-gradient(circle, rgba(56, 189, 248, 0.08) 0%, rgba(99, 102, 241, 0.04) 50%, transparent 70%);
    filter: blur(80px);
    pointer-events: none;
    z-index: -1;
}

.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
}

h1, h2, h3, h4 {
    color: var(--text-primary);
    font-weight: 700;
    letter-spacing: -0.025em;
    line-height: 1.2;
}

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

.highlight {
    background: linear-gradient(135deg, var(--primary) 0%, #818cf8 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    font-family: var(--font-main);
    font-size: 0.95rem;
    font-weight: 600;
    padding: 12px 24px;
    border-radius: var(--radius-md);
    cursor: pointer;
    text-decoration: none;
    transition: var(--transition);
    border: 1px solid transparent;
}

.btn-primary {
    background: linear-gradient(135deg, #0284c7 0%, #4f46e5 100%);
    color: #ffffff;
    box-shadow: 0 4px 20px var(--primary-glow);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 25px rgba(56, 189, 248, 0.4);
    filter: brightness(1.1);
}

.btn-outline {
    background: rgba(14, 21, 38, 0.6);
    border-color: var(--border-bright);
    color: var(--text-primary);
    backdrop-filter: blur(10px);
}

.btn-outline:hover {
    background: rgba(56, 189, 248, 0.1);
    border-color: var(--primary);
    transform: translateY(-2px);
}

.btn-sm {
    padding: 8px 18px;
    font-size: 0.88rem;
    border-radius: var(--radius-sm);
}

/* Header & Nav */
.site-header {
    position: sticky;
    top: 0;
    z-index: 1000;
    background: rgba(7, 10, 18, 0.75);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border-bottom: 1px solid rgba(255, 255, 255, 0.06);
    padding: 16px 0;
    transition: var(--transition);
}

.header-container {
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.brand-logo {
    display: flex;
    align-items: center;
    gap: 10px;
    text-decoration: none;
    font-size: 1.35rem;
    font-weight: 800;
    color: #fff;
    letter-spacing: -0.03em;
}

.brand-logo-img {
    width: 40px;
    height: 40px;
    border-radius: 10px;
    object-fit: cover;
    border: 1px solid var(--border-bright);
    box-shadow: 0 0 16px rgba(16, 185, 129, 0.3);
    transition: var(--transition);
}

.brand-logo:hover .brand-logo-img {
    transform: scale(1.08);
    box-shadow: 0 0 22px rgba(16, 185, 129, 0.5);
}

.logo-icon {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 38px;
    height: 38px;
    border-radius: 10px;
    background: linear-gradient(135deg, rgba(56, 189, 248, 0.2) 0%, rgba(99, 102, 241, 0.2) 100%);
    border: 1px solid var(--border-bright);
    color: var(--primary);
}

.badge-lab {
    font-family: var(--font-mono);
    font-size: 0.65rem;
    font-weight: 700;
    padding: 3px 7px;
    border-radius: var(--radius-full);
    background: rgba(56, 189, 248, 0.15);
    border: 1px solid var(--border-bright);
    color: var(--primary);
    letter-spacing: 0.08em;
}

.main-nav .nav-links {
    display: flex;
    list-style: none;
    gap: 32px;
}

.main-nav a {
    color: var(--text-secondary);
    text-decoration: none;
    font-size: 0.93rem;
    font-weight: 500;
    transition: var(--transition);
}

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

.header-actions {
    display: flex;
    align-items: center;
    gap: 16px;
}

.mobile-toggle {
    display: none;
    background: none;
    border: none;
    cursor: pointer;
    flex-direction: column;
    gap: 5px;
    padding: 6px;
}

.mobile-toggle span {
    width: 22px;
    height: 2px;
    background: var(--text-primary);
    border-radius: 2px;
    transition: var(--transition);
}

/* Footer */
.site-footer {
    background: #04060b;
    border-top: 1px solid rgba(255, 255, 255, 0.06);
    padding: 64px 0 32px;
}

.footer-top {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: 48px;
    margin-bottom: 48px;
}

.footer-desc {
    font-size: 0.9rem;
    line-height: 1.6;
    margin: 16px 0 20px;
    max-width: 320px;
}

.contact-pill {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 8px 14px;
    border-radius: var(--radius-full);
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.08);
    font-size: 0.85rem;
}

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

.footer-title {
    font-size: 0.95rem;
    font-weight: 700;
    color: #fff;
    margin-bottom: 18px;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.footer-links {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.footer-links a {
    color: var(--text-muted);
    text-decoration: none;
    font-size: 0.88rem;
    transition: var(--transition);
}

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

.footer-bottom {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding-top: 32px;
    border-top: 1px solid rgba(255, 255, 255, 0.06);
    font-size: 0.82rem;
    color: var(--text-muted);
}

.google-disclaimer {
    margin-top: 4px;
    font-size: 0.78rem;
    color: #475569;
}

.footer-status {
    display: flex;
    align-items: center;
    gap: 8px;
    font-family: var(--font-mono);
    color: var(--success);
}

.status-indicator {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: var(--success);
    box-shadow: 0 0 8px var(--success);
}