/* === Health App v2 – Futuristic Dark, Green Accent === */
:root {
    --color-bg: #0a0e14;
    --color-bg-alt: #0f1319;
    --color-bg-card: rgba(15, 25, 20, 0.6);
    --color-text: #e0e8e4;
    --color-text-light: #7a8f84;
    --color-primary: #00FF88;
    --color-primary-dim: rgba(0, 255, 136, 0.15);
    --color-primary-dark: #00cc6d;
    --color-accent: #00d4aa;
    --color-cyan: #00e5ff;
    --color-surface: rgba(0, 255, 136, 0.05);
    --font-display: 'Space Grotesk', -apple-system, sans-serif;
    --font-body: 'Inter', -apple-system, sans-serif;
    --font-mono: 'IBM Plex Mono', 'JetBrains Mono', monospace;
    --max-width: 1200px;
    --radius: 12px;
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }

body {
    font-family: var(--font-body);
    color: var(--color-text);
    background: var(--color-bg);
    line-height: 1.7;
    -webkit-font-smoothing: antialiased;
    position: relative;
}

/* Grid overlay */
body::before {
    content: '';
    position: fixed; top: 0; left: 0; right: 0; bottom: 0;
    background-image:
        linear-gradient(rgba(0, 255, 136, 0.02) 1px, transparent 1px),
        linear-gradient(90deg, rgba(0, 255, 136, 0.02) 1px, transparent 1px);
    background-size: 60px 60px;
    pointer-events: none; z-index: 0;
}

/* Scan line */
body::after {
    content: '';
    position: fixed; top: 0; left: 0; right: 0; height: 2px;
    background: linear-gradient(90deg, transparent, var(--color-primary), transparent);
    opacity: 0.3;
    animation: scanline 8s linear infinite;
    pointer-events: none; z-index: 1000;
}
@keyframes scanline {
    0% { top: -2px; }
    100% { top: 100vh; }
}

.container { max-width: var(--max-width); margin: 0 auto; padding: 0 24px; position: relative; z-index: 1; }

/* === Nav === */
.nav {
    position: fixed; top: 0; left: 0; right: 0; z-index: 100;
    background: rgba(10, 14, 20, 0.85);
    backdrop-filter: blur(24px);
    border-bottom: 1px solid rgba(0, 255, 136, 0.08);
}
.nav-inner {
    max-width: var(--max-width); margin: 0 auto; padding: 0 24px;
    display: flex; align-items: center; justify-content: space-between; height: 72px;
}
.nav-logo { display: flex; align-items: center; gap: 10px; text-decoration: none; }
.logo-icon { font-size: 22px; }
.logo-text { font-family: var(--font-mono); font-size: 18px; font-weight: 600; color: var(--color-primary); letter-spacing: 1px; }
.nav-links { display: flex; align-items: center; gap: 28px; }
.nav-links a { text-decoration: none; color: var(--color-text-light); font-weight: 500; font-size: 14px; transition: color 0.2s; font-family: var(--font-mono); font-size: 13px; letter-spacing: 0.5px; }
.nav-links a:hover { color: var(--color-primary); }
.nav-btn {
    background: transparent; color: var(--color-primary) !important;
    padding: 8px 20px; border-radius: 0; font-weight: 600; transition: all 0.2s;
    border: 1px solid var(--color-primary);
    clip-path: polygon(0 0, calc(100% - 8px) 0, 100% 8px, 100% 100%, 8px 100%, 0 calc(100% - 8px));
}
.nav-btn:hover { background: var(--color-primary-dim); }

/* === Hero === */
.hero {
    padding: 160px 24px 100px;
    position: relative; overflow: hidden;
    display: grid; grid-template-columns: 1fr 1fr; gap: 60px; align-items: center;
    max-width: var(--max-width); margin: 0 auto;
}
.hero::before {
    content: '';
    position: absolute; top: 0; left: 0; right: 0; bottom: 0;
    background: radial-gradient(ellipse 50% 40% at 30% 40%, rgba(0, 255, 136, 0.06) 0%, transparent 70%),
                radial-gradient(ellipse 40% 30% at 70% 60%, rgba(0, 228, 255, 0.03) 0%, transparent 70%);
    pointer-events: none;
}
.hero-content { position: relative; z-index: 1; }
.hero-status {
    display: inline-flex; align-items: center; gap: 8px;
    font-family: var(--font-mono); font-size: 12px; letter-spacing: 1px;
    color: var(--color-primary); margin-bottom: 24px; text-transform: uppercase;
}
.status-dot {
    width: 8px; height: 8px; border-radius: 50%;
    background: var(--color-primary);
    animation: pulse 2s ease-in-out infinite;
    box-shadow: 0 0 8px var(--color-primary);
}
@keyframes pulse { 0%, 100% { opacity: 1; } 50% { opacity: 0.3; } }

.hero h1 {
    font-family: var(--font-display); font-size: 52px; font-weight: 700;
    line-height: 1.1; margin-bottom: 20px; color: var(--color-text);
}
.hero h1 .accent { color: var(--color-primary); }
.hero p { font-size: 17px; color: var(--color-text-light); max-width: 480px; line-height: 1.7; margin-bottom: 36px; }
.hero-actions { display: flex; gap: 14px; flex-wrap: wrap; }

.btn-primary {
    background: var(--color-primary); color: #0a0e14; padding: 14px 32px;
    font-weight: 700; font-size: 14px; font-family: var(--font-mono);
    text-decoration: none; transition: all 0.25s; border: none; cursor: pointer;
    letter-spacing: 0.5px; text-transform: uppercase;
    clip-path: polygon(0 0, calc(100% - 10px) 0, 100% 10px, 100% 100%, 10px 100%, 0 calc(100% - 10px));
}
.btn-primary:hover { background: #33ff9f; box-shadow: 0 0 30px rgba(0, 255, 136, 0.3); }
.btn-secondary {
    background: transparent; color: var(--color-primary); padding: 14px 32px;
    font-weight: 600; font-size: 14px; font-family: var(--font-mono);
    text-decoration: none; transition: all 0.25s;
    border: 1px solid rgba(0, 255, 136, 0.3);
    letter-spacing: 0.5px; text-transform: uppercase;
    clip-path: polygon(0 0, calc(100% - 10px) 0, 100% 10px, 100% 100%, 10px 100%, 0 calc(100% - 10px));
}
.btn-secondary:hover { background: var(--color-primary-dim); border-color: var(--color-primary); }

/* === Hero Visual – Futuristic Dashboard === */
.hero-visual { position: relative; z-index: 1; }
.hud-dashboard {
    background: rgba(10, 20, 15, 0.7);
    border: 1px solid rgba(0, 255, 136, 0.12);
    border-radius: 2px; padding: 24px;
    backdrop-filter: blur(10px);
    clip-path: polygon(0 0, calc(100% - 16px) 0, 100% 16px, 100% 100%, 16px 100%, 0 calc(100% - 16px));
}
.hud-header {
    display: flex; justify-content: space-between; align-items: center;
    padding-bottom: 16px; margin-bottom: 16px;
    border-bottom: 1px solid rgba(0, 255, 136, 0.08);
}
.hud-title { font-family: var(--font-mono); font-size: 11px; color: var(--color-primary); letter-spacing: 2px; text-transform: uppercase; }
.hud-time { font-family: var(--font-mono); font-size: 11px; color: var(--color-text-light); }
.hud-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; margin-bottom: 16px; }
.hud-metric {
    background: rgba(0, 255, 136, 0.03); border: 1px solid rgba(0, 255, 136, 0.06);
    padding: 16px; position: relative;
}
.hud-metric::before {
    content: ''; position: absolute; top: 0; left: 0;
    width: 3px; height: 100%; background: var(--color-primary); opacity: 0.5;
}
.hud-metric-label { font-family: var(--font-mono); font-size: 10px; color: var(--color-text-light); text-transform: uppercase; letter-spacing: 1px; margin-bottom: 6px; }
.hud-metric-value { font-family: var(--font-display); font-size: 28px; font-weight: 700; color: var(--color-primary); }
.hud-metric-unit { font-family: var(--font-mono); font-size: 11px; color: var(--color-text-light); margin-left: 4px; }
.hud-metric-bar { height: 3px; background: rgba(0, 255, 136, 0.1); margin-top: 8px; border-radius: 1px; }
.hud-metric-bar-fill { height: 100%; background: var(--color-primary); border-radius: 1px; box-shadow: 0 0 6px rgba(0, 255, 136, 0.4); }
.hud-ai {
    background: rgba(0, 255, 136, 0.03); border: 1px solid rgba(0, 255, 136, 0.08);
    padding: 14px 16px;
}
.hud-ai-label { font-family: var(--font-mono); font-size: 10px; color: var(--color-primary); text-transform: uppercase; letter-spacing: 1px; margin-bottom: 6px; display: flex; align-items: center; gap: 6px; }
.hud-ai-text { font-size: 13px; color: var(--color-text-light); line-height: 1.6; }

/* === Sections === */
.section { padding: 100px 24px; position: relative; z-index: 1; }
.section-alt { background: rgba(0, 255, 136, 0.01); border-top: 1px solid rgba(0, 255, 136, 0.04); border-bottom: 1px solid rgba(0, 255, 136, 0.04); }
.section-header { text-align: center; margin-bottom: 64px; }
.section-tag {
    display: inline-block; font-family: var(--font-mono); font-size: 11px;
    padding: 5px 14px; margin-bottom: 16px;
    color: var(--color-primary); letter-spacing: 2px; text-transform: uppercase;
    border: 1px solid rgba(0, 255, 136, 0.15); background: var(--color-primary-dim);
}
.section-header h2 {
    font-family: var(--font-display); font-size: 40px; font-weight: 700; margin-bottom: 14px;
}
.section-header p { font-size: 17px; color: var(--color-text-light); max-width: 560px; margin: 0 auto; }

/* === Features === */
.features-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.feature-card {
    background: var(--color-bg-card); padding: 28px;
    border: 1px solid rgba(0, 255, 136, 0.06); transition: all 0.3s;
    clip-path: polygon(0 0, calc(100% - 10px) 0, 100% 10px, 100% 100%, 10px 100%, 0 calc(100% - 10px));
    position: relative;
}
.feature-card:hover { border-color: rgba(0, 255, 136, 0.15); background: rgba(15, 25, 20, 0.8); }
.feature-card::after {
    content: ''; position: absolute; top: 0; left: 0;
    width: 100%; height: 2px;
    background: linear-gradient(90deg, var(--color-primary), transparent);
    opacity: 0; transition: opacity 0.3s;
}
.feature-card:hover::after { opacity: 1; }
.feature-icon {
    font-size: 24px; margin-bottom: 16px;
    width: 44px; height: 44px; display: flex; align-items: center; justify-content: center;
    background: var(--color-primary-dim); border: 1px solid rgba(0, 255, 136, 0.1);
}
.feature-card h3 { font-family: var(--font-display); font-size: 18px; font-weight: 600; margin-bottom: 8px; }
.feature-card p { font-size: 14px; color: var(--color-text-light); line-height: 1.7; }
.feature-tag {
    display: inline-block; font-family: var(--font-mono); font-size: 10px;
    padding: 2px 8px; margin-top: 12px;
    background: var(--color-primary-dim); color: var(--color-primary);
    border: 1px solid rgba(0, 255, 136, 0.1); letter-spacing: 0.5px;
}

/* === Capabilities === */
.capabilities {
    display: grid; grid-template-columns: 1fr 1fr; gap: 48px; align-items: center;
}
.cap-list { list-style: none; }
.cap-item {
    display: flex; gap: 16px; padding: 20px 0;
    border-bottom: 1px solid rgba(0, 255, 136, 0.04);
}
.cap-marker {
    width: 32px; height: 32px; flex-shrink: 0;
    display: flex; align-items: center; justify-content: center;
    font-family: var(--font-mono); font-size: 12px; font-weight: 700;
    color: var(--color-primary); background: var(--color-primary-dim);
    border: 1px solid rgba(0, 255, 136, 0.1);
}
.cap-item h3 { font-family: var(--font-display); font-size: 16px; font-weight: 600; margin-bottom: 4px; }
.cap-item p { font-size: 13px; color: var(--color-text-light); line-height: 1.6; }

.cap-visual {
    background: rgba(10, 20, 15, 0.5); border: 1px solid rgba(0, 255, 136, 0.08);
    padding: 32px; text-align: center;
}
.hex-grid { display: flex; flex-wrap: wrap; gap: 12px; justify-content: center; }
.hex-item {
    width: 80px; height: 80px;
    background: var(--color-primary-dim); border: 1px solid rgba(0, 255, 136, 0.1);
    display: flex; flex-direction: column; align-items: center; justify-content: center;
    clip-path: polygon(50% 0%, 100% 25%, 100% 75%, 50% 100%, 0% 75%, 0% 25%);
    transition: all 0.3s;
}
.hex-item:hover { background: rgba(0, 255, 136, 0.15); }
.hex-item span { font-size: 20px; margin-bottom: 2px; }
.hex-item small { font-family: var(--font-mono); font-size: 8px; color: var(--color-text-light); text-transform: uppercase; letter-spacing: 0.5px; }

/* === Tech === */
.tech-grid { display: flex; flex-wrap: wrap; gap: 10px; justify-content: center; }
.tech-item {
    display: inline-flex; align-items: center; gap: 8px;
    padding: 10px 18px; font-family: var(--font-mono); font-size: 13px;
    color: var(--color-text-light);
    background: rgba(0, 255, 136, 0.03); border: 1px solid rgba(0, 255, 136, 0.06);
    transition: all 0.2s; letter-spacing: 0.5px;
}
.tech-item:hover { border-color: rgba(0, 255, 136, 0.15); color: var(--color-primary); }
.tech-item span { font-size: 16px; }

/* === CTA === */
.cta {
    text-align: center; padding: 120px 24px; position: relative; z-index: 1;
    background: radial-gradient(ellipse 60% 40% at 50% 50%, rgba(0, 255, 136, 0.04) 0%, transparent 70%);
}
.cta h2 { font-family: var(--font-display); font-size: 44px; font-weight: 700; margin-bottom: 16px; }
.cta p { font-size: 17px; color: var(--color-text-light); margin-bottom: 36px; max-width: 500px; margin-left: auto; margin-right: auto; }

/* === Footer === */
.footer {
    padding: 64px 24px 32px;
    border-top: 1px solid rgba(0, 255, 136, 0.06);
    background: rgba(5, 8, 12, 0.8);
    position: relative; z-index: 1;
}
.footer-grid { display: grid; grid-template-columns: 2fr 1fr 1fr 1fr; gap: 48px; margin-bottom: 48px; }
.footer-brand .logo-text { font-family: var(--font-mono); font-size: 16px; font-weight: 600; color: var(--color-primary); display: block; margin-bottom: 12px; letter-spacing: 1px; }
.footer-brand p { font-size: 13px; color: var(--color-text-light); line-height: 1.7; }
.footer-links h4 { font-family: var(--font-mono); font-size: 11px; font-weight: 600; margin-bottom: 16px; color: var(--color-text); text-transform: uppercase; letter-spacing: 1px; }
.footer-links a { display: block; font-size: 13px; color: var(--color-text-light); text-decoration: none; margin-bottom: 10px; transition: color 0.2s; }
.footer-links a:hover { color: var(--color-primary); }
.footer-bottom { text-align: center; padding-top: 32px; border-top: 1px solid rgba(0, 255, 136, 0.04); }
.footer-bottom p { font-size: 12px; color: var(--color-text-light); font-family: var(--font-mono); letter-spacing: 0.5px; }

/* === Responsive === */
@media (max-width: 900px) {
    .hero { grid-template-columns: 1fr; padding: 140px 24px 60px; }
    .features-grid { grid-template-columns: 1fr 1fr; }
    .capabilities { grid-template-columns: 1fr; }
    .footer-grid { grid-template-columns: 1fr 1fr; gap: 32px; }
}
@media (max-width: 600px) {
    .hero h1 { font-size: 36px; }
    .features-grid { grid-template-columns: 1fr; }
    .footer-grid { grid-template-columns: 1fr; }
    .hero-actions { flex-direction: column; }
    .nav-links a:not(.nav-btn) { display: none; }
    .hud-grid { grid-template-columns: 1fr; }
}