/* ==========================================================================
   AT TECH IO — Master Stylesheet
   Design System: HSL Tailored Colors, Dark Mode, Outfit & Inter Typography, Glassmorphism
   ========================================================================== */

:root {
    /* Color Tokens */
    --bg-dark: #090d16;
    --bg-card: rgba(21, 30, 49, 0.6);
    --bg-card-border: rgba(255, 255, 255, 0.08);
    
    --primary-indigo: #6366f1;
    --primary-purple: #a855f7;
    --accent-cyan: #06b6d4;
    --accent-gold: #fbbf24;
    --accent-blue: #3b82f6;
    --accent-green: #10b981;
    
    --text-main: #f8fafc;
    --text-muted: #94a3b8;
    --text-dim: #64748b;
    
    --font-heading: 'Outfit', -apple-system, BlinkMacSystemFont, sans-serif;
    --font-body: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    
    --radius-sm: 8px;
    --radius-md: 14px;
    --radius-lg: 20px;
    --radius-full: 9999px;
    
    --shadow-glass: 0 8px 32px 0 rgba(0, 0, 0, 0.37);
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

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

html {
    scroll-behavior: smooth;
    font-size: 16px;
}

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

/* Background Glow Mesh */
.glow-mesh {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    z-index: -1;
    overflow: hidden;
    pointer-events: none;
}

.glow-orb {
    position: absolute;
    border-radius: 50%;
    filter: blur(140px);
    opacity: 0.25;
    animation: orbFloat 20s infinite ease-in-out alternate;
}

.glow-1 {
    top: -10%;
    left: -10%;
    width: 50vw;
    height: 50vw;
    background: radial-gradient(circle, var(--primary-indigo), transparent);
}

.glow-2 {
    top: 40%;
    right: -10%;
    width: 45vw;
    height: 45vw;
    background: radial-gradient(circle, var(--primary-purple), transparent);
    animation-delay: -7s;
}

.glow-3 {
    bottom: -10%;
    left: 20%;
    width: 40vw;
    height: 40vw;
    background: radial-gradient(circle, var(--accent-cyan), transparent);
    animation-delay: -14s;
}

@keyframes orbFloat {
    0% { transform: translate(0, 0) scale(1); }
    100% { transform: translate(80px, 60px) scale(1.15); }
}

/* Container */
.container {
    width: 100%;
    max-width: 1240px;
    margin: 0 auto;
    padding: 0 1.5rem;
}

/* Typography & Utilities */
h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-heading);
    font-weight: 700;
    line-height: 1.2;
    color: var(--text-main);
}

.text-center { text-align: center; }
.text-gradient {
    background: linear-gradient(135deg, var(--primary-indigo) 0%, var(--primary-purple) 50%, var(--accent-cyan) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}
.accent-gradient {
    background: linear-gradient(135deg, var(--accent-cyan), var(--primary-indigo));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

/* Glassmorphism Cards */
.glass-card {
    background: var(--bg-card);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border: 1px solid var(--bg-card-border);
    box-shadow: var(--shadow-glass);
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.75rem 1.5rem;
    font-family: var(--font-body);
    font-size: 0.95rem;
    font-weight: 600;
    border-radius: var(--radius-md);
    cursor: pointer;
    text-decoration: none;
    transition: var(--transition);
    border: none;
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary-indigo), var(--primary-purple));
    color: #ffffff;
    box-shadow: 0 4px 14px 0 rgba(99, 102, 241, 0.35);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px 0 rgba(99, 102, 241, 0.5);
}

.btn-secondary {
    background: rgba(255, 255, 255, 0.06);
    color: var(--text-main);
    border: 1px solid var(--bg-card-border);
}

.btn-secondary:hover {
    background: rgba(255, 255, 255, 0.12);
    border-color: rgba(255, 255, 255, 0.2);
    transform: translateY(-2px);
}

.btn-lg {
    padding: 1rem 2rem;
    font-size: 1.05rem;
    border-radius: var(--radius-lg);
}

.btn-block {
    width: 100%;
    justify-content: center;
}

/* Navbar */
.navbar-header {
    position: sticky;
    top: 0;
    z-index: 100;
    background: rgba(9, 13, 22, 0.8);
    backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--bg-card-border);
    padding: 1rem 0;
}

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

.logo-group {
    display: flex;
    align-items: center;
    gap: 0.85rem;
    text-decoration: none;
}

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

.logo-title {
    font-family: var(--font-heading);
    font-size: 1.4rem;
    font-weight: 800;
    letter-spacing: -0.02em;
    color: var(--text-main);
}

.logo-subtitle {
    font-size: 0.65rem;
    font-weight: 600;
    letter-spacing: 0.12em;
    color: var(--text-muted);
}

.nav-links {
    display: flex;
    align-items: center;
    gap: 2rem;
}

.nav-link {
    color: var(--text-muted);
    text-decoration: none;
    font-weight: 500;
    font-size: 0.95rem;
    transition: var(--transition);
}

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

.nav-actions {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.status-pill {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    background: rgba(16, 185, 129, 0.12);
    border: 1px solid rgba(16, 185, 129, 0.3);
    color: var(--accent-green);
    padding: 0.35rem 0.85rem;
    border-radius: var(--radius-full);
    font-size: 0.8rem;
    font-weight: 600;
}

.status-dot {
    width: 7px;
    height: 7px;
    background-color: var(--accent-green);
    border-radius: 50%;
    box-shadow: 0 0 8px var(--accent-green);
}

/* Hero Section */
.hero-section {
    padding: 7rem 0 5rem 0;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    background: rgba(99, 102, 241, 0.12);
    border: 1px solid rgba(99, 102, 241, 0.3);
    color: #818cf8;
    padding: 0.4rem 1.25rem;
    border-radius: var(--radius-full);
    font-size: 0.85rem;
    font-weight: 600;
    margin-bottom: 1.5rem;
}

.hero-title {
    font-size: 3.5rem;
    font-weight: 800;
    letter-spacing: -0.03em;
    max-width: 900px;
    margin: 0 auto 1.5rem auto;
}

.hero-subtitle {
    font-size: 1.2rem;
    color: var(--text-muted);
    max-width: 720px;
    margin: 0 auto 2.5rem auto;
}

.hero-actions {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 1.25rem;
}

/* Section Common */
.section-header {
    margin-bottom: 3.5rem;
}

.section-badge {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    color: var(--accent-cyan);
    font-size: 0.85rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    margin-bottom: 0.75rem;
}

.section-title {
    font-size: 2.5rem;
    font-weight: 800;
    margin-bottom: 1rem;
}

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

/* Ventures Showcase Grid */
.ventures-section {
    padding: 5rem 0;
}

.ventures-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(340px, 1fr));
    gap: 2rem;
}

.venture-card {
    padding: 2.25rem;
    border-radius: var(--radius-lg);
    display: flex;
    flex-direction: column;
    transition: var(--transition);
}

.venture-card:hover {
    transform: translateY(-6px);
    border-color: rgba(255, 255, 255, 0.2);
}

.venture-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 1.25rem;
}

.venture-icon {
    width: 48px;
    height: 48px;
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.35rem;
}

.icon-gold { background: rgba(251, 191, 36, 0.15); color: var(--accent-gold); }
.icon-blue { background: rgba(59, 130, 246, 0.15); color: var(--accent-blue); }
.icon-green { background: rgba(16, 185, 129, 0.15); color: var(--accent-green); }

.venture-badge {
    padding: 0.3rem 0.85rem;
    border-radius: var(--radius-full);
    font-size: 0.75rem;
    font-weight: 700;
}

.badge-gold { background: rgba(251, 191, 36, 0.15); color: var(--accent-gold); }
.badge-blue { background: rgba(59, 130, 246, 0.15); color: var(--accent-blue); }
.badge-green { background: rgba(16, 185, 129, 0.15); color: var(--accent-green); }

.venture-title {
    font-size: 1.6rem;
    margin-bottom: 0.25rem;
}

.venture-domain {
    font-size: 0.85rem;
    font-family: monospace;
    color: var(--text-dim);
    margin-bottom: 1rem;
}

.venture-desc {
    color: var(--text-muted);
    font-size: 0.95rem;
    margin-bottom: 1.5rem;
}

.venture-highlights {
    list-style: none;
    margin-bottom: 2rem;
    display: flex;
    flex-direction: column;
    gap: 0.65rem;
}

.venture-highlights li {
    font-size: 0.9rem;
    color: var(--text-main);
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.text-gold { color: var(--accent-gold); }
.text-blue { color: var(--accent-blue); }
.text-green { color: var(--accent-green); }

/* Tech Section */
.tech-section {
    padding: 5rem 0;
}

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

.tech-card {
    padding: 2rem;
    border-radius: var(--radius-lg);
    text-align: center;
}

.tech-card-icon {
    font-size: 2.25rem;
    color: var(--primary-indigo);
    margin-bottom: 1.25rem;
}

.tech-card h3 {
    font-size: 1.3rem;
    margin-bottom: 0.75rem;
}

.tech-card p {
    color: var(--text-muted);
    font-size: 0.95rem;
}

/* Footer */
.site-footer {
    background: rgba(5, 8, 15, 0.9);
    border-top: 1px solid var(--bg-card-border);
    padding: 4rem 0 2rem 0;
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr repeat(3, 1fr);
    gap: 3rem;
    margin-bottom: 3rem;
}

.footer-desc {
    color: var(--text-muted);
    font-size: 0.95rem;
    margin-bottom: 1rem;
}

.footer-meta {
    font-size: 0.85rem;
    color: var(--text-dim);
    line-height: 1.8;
}

.footer-meta code {
    background: rgba(255, 255, 255, 0.06);
    padding: 0.15rem 0.4rem;
    border-radius: var(--radius-sm);
    color: var(--accent-cyan);
}

.footer-title {
    font-size: 1.05rem;
    margin-bottom: 1.25rem;
}

.footer-links {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

.footer-links a {
    color: var(--text-muted);
    text-decoration: none;
    font-size: 0.9rem;
    transition: var(--transition);
}

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

.footer-bottom {
    border-top: 1px solid var(--bg-card-border);
    padding-top: 2rem;
}

.footer-bottom-content {
    display: flex;
    align-items: center;
    justify-content: space-between;
    font-size: 0.85rem;
    color: var(--text-dim);
}

/* Responsive */
@media (max-width: 992px) {
    .hero-title { font-size: 2.75rem; }
    .footer-grid { grid-template-columns: 1fr 1fr; }
    .nav-links { display: none; }
}

@media (max-width: 600px) {
    .hero-title { font-size: 2.1rem; }
    .hero-actions { flex-direction: column; }
    .footer-grid { grid-template-columns: 1fr; }
    .footer-bottom-content { flex-direction: column; gap: 0.5rem; text-align: center; }
}