/* ─── Modern Design Tokens & Cyberpunk Dark Theme ─── */
:root {
    --bg-dark: #06090e;
    --bg-card: rgba(15, 23, 42, 0.75);
    --bg-card-hover: rgba(30, 41, 59, 0.85);
    --border-color: rgba(56, 189, 248, 0.2);
    --border-glow: rgba(56, 189, 248, 0.5);
    
    --primary-cyan: #38bdf8;
    --primary-blue: #0284c7;
    --accent-green: #22c55e;
    --accent-orange: #f97316;
    --accent-red: #ef4444;
    
    --text-main: #f8fafc;
    --text-muted: #94a3b8;
    --font-heading: 'Outfit', -apple-system, BlinkMacSystemFont, sans-serif;
    --font-body: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
}

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

html {
    scroll-behavior: smooth;
    background-color: var(--bg-dark);
    color: var(--text-main);
    font-family: var(--font-body);
}

body {
    overflow-x: hidden;
    line-height: 1.6;
}

/* ─── Background Ambient Grid & Canvas ─── */
#canvas-container {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    z-index: 1;
    pointer-events: auto;
}

.ambient-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    z-index: 2;
    pointer-events: none;
    background: radial-gradient(circle at 50% 30%, transparent 20%, #06090e 85%),
                linear-gradient(to bottom, transparent 60%, #06090e 100%);
}

/* ─── Content Layer ─── */
.content-wrapper {
    position: relative;
    z-index: 10;
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 2rem;
}

/* ─── Navigation ─── */
header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 100;
    backdrop-filter: blur(12px);
    background: rgba(6, 9, 14, 0.7);
    border-bottom: 1px solid var(--border-color);
}

.nav-container {
    max-width: 1280px;
    margin: 0 auto;
    padding: 1.25rem 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    font-family: var(--font-heading);
    font-weight: 700;
    font-size: 1.35rem;
    color: var(--text-main);
    text-decoration: none;
}

.logo-badge {
    background: linear-gradient(135deg, var(--primary-cyan), var(--primary-blue));
    color: #fff;
    font-size: 0.75rem;
    padding: 0.2rem 0.6rem;
    border-radius: 9999px;
    font-weight: 600;
}

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

.nav-links a {
    color: var(--text-muted);
    text-decoration: none;
    font-weight: 500;
    transition: color 0.3s;
}

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

.btn-primary {
    background: linear-gradient(135deg, #0284c7, #38bdf8);
    color: #fff;
    padding: 0.65rem 1.5rem;
    border-radius: 0.5rem;
    text-decoration: none;
    font-weight: 600;
    box-shadow: 0 0 20px rgba(56, 189, 248, 0.3);
    transition: all 0.3s ease;
    border: none;
    cursor: pointer;
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 0 30px rgba(56, 189, 248, 0.6);
}

.btn-secondary {
    background: rgba(30, 41, 59, 0.8);
    color: var(--text-main);
    padding: 0.65rem 1.5rem;
    border-radius: 0.5rem;
    text-decoration: none;
    font-weight: 600;
    border: 1px solid var(--border-color);
    transition: all 0.3s ease;
}

.btn-secondary:hover {
    border-color: var(--primary-cyan);
    background: rgba(56, 189, 248, 0.1);
}

/* ─── Hero Section ─── */
.hero-section {
    min-height: 100vh;
    display: flex;
    align-items: center;
    padding-top: 6rem;
}

.hero-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 3rem;
    align-items: center;
}

.hero-text h1 {
    font-family: var(--font-heading);
    font-size: 3.5rem;
    line-height: 1.15;
    font-weight: 800;
    margin-bottom: 1.25rem;
    background: linear-gradient(135deg, #ffffff 30%, #38bdf8 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.hero-text p {
    font-size: 1.2rem;
    color: var(--text-muted);
    margin-bottom: 2rem;
}

.hero-buttons {
    display: flex;
    gap: 1rem;
    margin-bottom: 2.5rem;
}

.stat-pills {
    display: flex;
    gap: 1.5rem;
}

.stat-pill {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    padding: 0.75rem 1.25rem;
    border-radius: 0.75rem;
    backdrop-filter: blur(8px);
}

.stat-pill .num {
    font-family: var(--font-heading);
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--primary-cyan);
}

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

/* ─── 3D Control Panel Floating Box ─── */
.model-controls {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    padding: 1.5rem;
    border-radius: 1rem;
    backdrop-filter: blur(16px);
    box-shadow: 0 20px 50px rgba(0, 0, 0, 0.5);
}

.model-controls h3 {
    font-family: var(--font-heading);
    font-size: 1.1rem;
    margin-bottom: 1rem;
    color: var(--primary-cyan);
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.control-btn-group {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 0.5rem;
    margin-bottom: 1rem;
}

.mode-btn {
    background: rgba(15, 23, 42, 0.8);
    border: 1px solid var(--border-color);
    color: var(--text-muted);
    padding: 0.6rem;
    border-radius: 0.5rem;
    font-size: 0.85rem;
    cursor: pointer;
    transition: all 0.3s;
}

.mode-btn.active, .mode-btn:hover {
    background: rgba(56, 189, 248, 0.2);
    border-color: var(--primary-cyan);
    color: #fff;
}

.telemetry-readout {
    background: rgba(0, 0, 0, 0.4);
    border-radius: 0.5rem;
    padding: 0.75rem 1rem;
    font-family: monospace;
    font-size: 0.9rem;
}

.telemetry-row {
    display: flex;
    justify-content: space-between;
    margin-bottom: 0.35rem;
}

/* ─── Features Grid Section ─── */
.section {
    padding: 7rem 0;
}

.section-title {
    text-align: center;
    max-width: 700px;
    margin: 0 auto 4rem auto;
}

.section-title h2 {
    font-family: var(--font-heading);
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 1rem;
}

.section-title p {
    color: var(--text-muted);
    font-size: 1.1rem;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 2rem;
}

.feature-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 1.25rem;
    padding: 2rem;
    backdrop-filter: blur(12px);
    transition: all 0.4s ease;
}

.feature-card:hover {
    transform: translateY(-6px);
    border-color: var(--border-glow);
    box-shadow: 0 15px 35px rgba(56, 189, 248, 0.15);
}

.feature-icon {
    width: 50px;
    height: 50px;
    border-radius: 0.75rem;
    background: rgba(56, 189, 248, 0.15);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    color: var(--primary-cyan);
    margin-bottom: 1.25rem;
}

.feature-card h3 {
    font-family: var(--font-heading);
    font-size: 1.35rem;
    margin-bottom: 0.75rem;
}

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

/* ─── System Tray Demo Banner ─── */
.tray-demo-box {
    background: linear-gradient(135deg, rgba(15, 23, 42, 0.9), rgba(30, 41, 59, 0.9));
    border: 1px solid var(--border-glow);
    border-radius: 1.5rem;
    padding: 3rem;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 3rem;
    align-items: center;
}

.tray-icon-preview {
    display: flex;
    gap: 1rem;
    align-items: center;
    justify-content: center;
    background: #000;
    padding: 2rem;
    border-radius: 1rem;
    border: 1px solid rgba(255, 255, 255, 0.1);
}

.mock-tray-icon {
    width: 48px;
    height: 48px;
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-family: var(--font-heading);
    font-weight: 800;
    font-size: 1.4rem;
    color: #000;
    box-shadow: 0 0 15px rgba(0,0,0,0.5);
}

.mock-tray-icon.green { background: #64eb64; }
.mock-tray-icon.yellow { background: #ffc800; }
.mock-tray-icon.red { background: #f03232; }

/* ─── Footer ─── */
footer {
    border-top: 1px solid var(--border-color);
    padding: 4rem 0 2rem 0;
    background: rgba(6, 9, 14, 0.95);
}

.footer-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 2rem;
}

.footer-bottom {
    text-align: center;
    color: var(--text-muted);
    font-size: 0.85rem;
    border-top: 1px solid rgba(255, 255, 255, 0.05);
    padding-top: 2rem;
}

/* Responsive */
@media (max-width: 992px) {
    .hero-grid, .tray-demo-box { grid-template-columns: 1fr; }
    .hero-text h1 { font-size: 2.75rem; }
}