/* ===== LUMIRA LANDING PAGE ===== */
:root {
    --bg-primary: #0A0A0F;
    --bg-secondary: #12121A;
    --bg-tertiary: #1A1A25;
    --bg-elevated: #222233;
    --red-primary: #FF2D2D;
    --red-bright: #FF4444;
    --red-dark: #8B0000;
    --red-glow: rgba(255, 45, 45, 0.15);
    --nir-orange: #FF6B35;
    --text-primary: #F5F5F7;
    --text-secondary: #9999AA;
    --text-tertiary: #666677;
    --success: #22CC88;
    --glass-border: rgba(255, 255, 255, 0.06);
    --font: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
}

* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { font-family: var(--font); background: var(--bg-primary); color: var(--text-secondary); line-height: 1.7; overflow-x: hidden; }
.container { max-width: 1200px; margin: 0 auto; padding: 0 24px; }
img { max-width: 100%; height: auto; display: block; }
a { text-decoration: none; color: inherit; }
h1, h2, h3, h4 { color: var(--text-primary); line-height: 1.2; }

/* Gradient text */
.gradient-text {
    background: linear-gradient(135deg, var(--red-primary), var(--nir-orange));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

/* Buttons */
.btn {
    display: inline-flex; align-items: center; gap: 10px;
    font-family: var(--font); font-weight: 600; border: none; cursor: pointer;
    border-radius: 14px; transition: all 0.3s ease; text-decoration: none;
}
.btn-sm { padding: 8px 20px; font-size: 0.85rem; border-radius: 10px; }
.btn-lg { padding: 16px 32px; font-size: 1rem; }
.btn-xl { padding: 20px 44px; font-size: 1.1rem; border-radius: 18px; }
.btn-primary {
    background: linear-gradient(135deg, var(--red-primary), var(--nir-orange));
    color: white; box-shadow: 0 4px 24px rgba(255, 45, 45, 0.3);
}
.btn-primary:hover { transform: translateY(-2px); box-shadow: 0 8px 32px rgba(255, 45, 45, 0.4); }
.btn-ghost {
    background: transparent; color: var(--text-primary);
    border: 1px solid var(--glass-border); backdrop-filter: blur(4px);
}
.btn-ghost:hover { border-color: var(--red-primary); color: var(--red-primary); }
.btn-block { width: 100%; justify-content: center; }

/* ===== NAV ===== */
.nav {
    position: fixed; top: 0; left: 0; right: 0; z-index: 100;
    padding: 16px 0; transition: all 0.3s ease;
}
.nav.scrolled { background: rgba(10, 10, 15, 0.92); backdrop-filter: blur(20px); border-bottom: 1px solid var(--glass-border); }
.nav-inner { display: flex; align-items: center; justify-content: space-between; }
.nav-logo { font-size: 1.4rem; font-weight: 800; color: var(--text-primary); display: flex; align-items: center; gap: 8px; }
.logo-dot { width: 10px; height: 10px; border-radius: 50%; background: var(--red-primary); box-shadow: 0 0 12px var(--red-primary); }
.nav-links { display: flex; align-items: center; gap: 28px; }
.nav-links a { font-size: 0.9rem; color: var(--text-secondary); transition: color 0.2s; }
.nav-links a:hover { color: var(--text-primary); }
.lang-switch { padding: 4px 12px; border: 1px solid var(--glass-border); border-radius: 8px; font-size: 0.8rem !important; }
.nav-toggle { display: none; background: none; border: none; cursor: pointer; padding: 8px; }
.nav-toggle span { display: block; width: 22px; height: 2px; background: var(--text-primary); margin: 5px 0; transition: 0.3s; }

/* ===== HERO ===== */
.hero { min-height: 100vh; display: flex; align-items: center; position: relative; padding: 100px 0 60px; overflow: hidden; }
.hero-glow {
    position: absolute; top: 50%; left: 30%; width: 600px; height: 600px;
    background: radial-gradient(circle, rgba(255, 45, 45, 0.08), transparent 70%);
    transform: translate(-50%, -50%); pointer-events: none;
}
.hero-inner { display: grid; grid-template-columns: 1fr 1fr; gap: 60px; align-items: center; }
.hero-badge {
    display: inline-block; padding: 8px 18px; border-radius: 100px;
    background: var(--red-glow); color: var(--red-primary);
    font-size: 0.85rem; font-weight: 600; margin-bottom: 20px;
    border: 1px solid rgba(255, 45, 45, 0.2);
}
.hero h1 { font-size: 3.8rem; font-weight: 900; margin-bottom: 20px; letter-spacing: -0.03em; }
.hero-desc { font-size: 1.15rem; color: var(--text-secondary); margin-bottom: 32px; max-width: 520px; }
.hero-cta { display: flex; gap: 16px; margin-bottom: 48px; flex-wrap: wrap; }
.hero-stats { display: flex; gap: 40px; }
.hero-stat { display: flex; flex-direction: column; }
.hero-stat strong { font-size: 1.5rem; color: var(--text-primary); font-weight: 800; }
.hero-stat span { font-size: 0.8rem; color: var(--text-tertiary); }
.hero-image { display: flex; justify-content: center; position: relative; }
.hero-image img { max-height: 680px; width: auto; border-radius: 24px; filter: drop-shadow(0 20px 60px rgba(255, 45, 45, 0.15)); }

/* ===== SECTIONS ===== */
.section { padding: 100px 0; }
.section-header { text-align: center; max-width: 640px; margin: 0 auto 60px; }
.section-tag {
    display: inline-block; padding: 6px 16px; border-radius: 100px;
    background: var(--red-glow); color: var(--red-primary);
    font-size: 0.8rem; font-weight: 700; text-transform: uppercase;
    letter-spacing: 1px; margin-bottom: 16px;
}
.section-header h2 { font-size: 2.8rem; font-weight: 800; margin-bottom: 16px; letter-spacing: -0.02em; }
.section-header p { font-size: 1.1rem; color: var(--text-secondary); }

/* ===== FEATURES ===== */
.features { background: var(--bg-secondary); }
.features-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.feature-card {
    background: var(--bg-tertiary); border-radius: 20px; padding: 32px;
    border: 1px solid var(--glass-border); transition: all 0.4s ease;
    opacity: 0; transform: translateY(30px);
}
.feature-card.visible { opacity: 1; transform: translateY(0); }
.feature-card:hover { border-color: rgba(255, 45, 45, 0.2); transform: translateY(-4px); }
.feature-icon { font-size: 2rem; margin-bottom: 16px; }
.feature-card h3 { font-size: 1.15rem; margin-bottom: 8px; }
.feature-card p { font-size: 0.9rem; color: var(--text-secondary); }

/* ===== SHOWCASE ===== */
.showcase { background: var(--bg-primary); overflow: hidden; }
.showcase-grid { display: flex; justify-content: center; gap: 30px; }
.showcase-item {
    flex: 0 0 280px; opacity: 0; transform: translateY(40px);
    transition: all 0.6s ease;
}
.showcase-item.visible { opacity: 1; transform: translateY(0); }
.showcase-item:nth-child(2) { transition-delay: 0.15s; }
.showcase-item:nth-child(3) { transition-delay: 0.3s; }
.showcase-item img { border-radius: 20px; box-shadow: 0 16px 48px rgba(0,0,0,0.4); }

/* ===== MODES ===== */
.modes { background: var(--bg-secondary); }
.modes-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 16px; }
.mode-card {
    display: flex; gap: 20px; padding: 24px; border-radius: 20px;
    background: var(--bg-tertiary); border: 1px solid var(--glass-border);
    transition: all 0.4s ease; opacity: 0; transform: translateY(20px);
}
.mode-card.visible { opacity: 1; transform: translateY(0); }
.mode-card:hover { border-color: rgba(255, 45, 45, 0.2); }
.mode-card-free { border-color: rgba(34, 204, 136, 0.2); }
.mode-emoji { font-size: 2.4rem; flex-shrink: 0; }
.mode-info h3 { font-size: 1.05rem; margin-bottom: 2px; }
.mode-wave { font-size: 0.8rem; color: var(--red-primary); font-weight: 600; }
.mode-info p { font-size: 0.85rem; margin: 8px 0; color: var(--text-secondary); }
.mode-stars { color: var(--nir-orange); font-size: 0.9rem; letter-spacing: 2px; }
.free-badge {
    display: inline-block; padding: 2px 8px; border-radius: 6px;
    background: rgba(34, 204, 136, 0.15); color: var(--success);
    font-size: 0.65rem; font-weight: 700; vertical-align: middle; margin-left: 6px;
}

/* ===== SCIENCE ===== */
.science-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; margin-bottom: 40px; }
.science-card {
    padding: 32px; border-radius: 20px; background: var(--bg-tertiary);
    border: 1px solid var(--glass-border);
    opacity: 0; transform: translateY(20px); transition: all 0.4s ease;
}
.science-card.visible { opacity: 1; transform: translateY(0); }
.science-number { font-size: 3rem; font-weight: 900; background: linear-gradient(135deg, var(--red-primary), var(--nir-orange)); -webkit-background-clip: text; -webkit-text-fill-color: transparent; margin-bottom: 12px; }
.science-card h3 { margin-bottom: 8px; }
.science-card p { font-size: 0.9rem; }
.science-disclaimer { text-align: center; padding: 20px 32px; border-radius: 16px; background: var(--bg-tertiary); border-left: 3px solid var(--nir-orange); }
.science-disclaimer p { font-size: 0.85rem; color: var(--text-tertiary); }

/* ===== PRICING ===== */
.pricing { background: var(--bg-secondary); }
.pricing-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 24px; max-width: 800px; margin: 0 auto; }
.pricing-card {
    padding: 36px; border-radius: 24px; background: var(--bg-tertiary);
    border: 1px solid var(--glass-border); position: relative;
    opacity: 0; transform: translateY(20px); transition: all 0.4s ease;
}
.pricing-card.visible { opacity: 1; transform: translateY(0); }
.pricing-card-pro { border-color: var(--red-primary); box-shadow: 0 8px 40px rgba(255, 45, 45, 0.15); }
.pricing-popular {
    position: absolute; top: -12px; left: 50%; transform: translateX(-50%);
    padding: 4px 18px; border-radius: 100px; font-size: 0.75rem; font-weight: 700;
    background: linear-gradient(135deg, var(--red-primary), var(--nir-orange)); color: white;
}
.pricing-label { font-size: 1rem; font-weight: 700; color: var(--text-tertiary); text-transform: uppercase; letter-spacing: 1px; margin-bottom: 8px; }
.pricing-price { font-size: 3.2rem; font-weight: 900; color: var(--text-primary); }
.pricing-price span { font-size: 1.8rem; }
.pricing-period { font-size: 0.85rem; color: var(--text-tertiary); margin-bottom: 24px; }
.pricing-features { list-style: none; margin-bottom: 24px; }
.pricing-features li { padding: 6px 0; font-size: 0.9rem; }
.pricing-features .included { color: var(--text-primary); }
.pricing-features .excluded { color: var(--text-tertiary); }

/* ===== DOWNLOAD CTA ===== */
.download { text-align: center; position: relative; padding: 120px 0; overflow: hidden; }
.download-glow {
    position: absolute; top: 50%; left: 50%; width: 800px; height: 400px;
    background: radial-gradient(ellipse, rgba(255, 45, 45, 0.1), transparent 70%);
    transform: translate(-50%, -50%); pointer-events: none;
}
.download h2 { font-size: 3rem; font-weight: 900; margin-bottom: 16px; }
.download p { font-size: 1.15rem; color: var(--text-secondary); margin-bottom: 36px; }

/* ===== FOOTER ===== */
.footer { background: var(--bg-secondary); border-top: 1px solid var(--glass-border); padding: 60px 0 0; }
.footer-inner { display: flex; justify-content: space-between; gap: 40px; margin-bottom: 40px; }
.footer-brand p { color: var(--text-tertiary); font-size: 0.85rem; margin-top: 4px; }
.footer-brand strong { color: var(--text-primary); font-size: 1.1rem; }
.footer-links { display: flex; gap: 60px; }
.footer-col { display: flex; flex-direction: column; gap: 8px; }
.footer-col h4 { font-size: 0.85rem; color: var(--text-primary); margin-bottom: 4px; }
.footer-col a { font-size: 0.85rem; color: var(--text-tertiary); transition: color 0.2s; }
.footer-col a:hover { color: var(--red-primary); }
.footer-bottom { padding: 24px 0; border-top: 1px solid var(--glass-border); }
.footer-bottom p { font-size: 0.8rem; color: var(--text-tertiary); }
.footer-disclaimer { margin-top: 8px; font-style: italic; }

/* ===== RESPONSIVE ===== */
@media (max-width: 900px) {
    .hero-inner { grid-template-columns: 1fr; text-align: center; }
    .hero h1 { font-size: 2.6rem; }
    .hero-desc { margin: 0 auto 32px; }
    .hero-cta { justify-content: center; }
    .hero-stats { justify-content: center; }
    .hero-image { margin-top: 40px; }
    .hero-image img { max-height: 500px; }
    .features-grid { grid-template-columns: repeat(2, 1fr); }
    .modes-grid { grid-template-columns: 1fr; }
    .science-grid { grid-template-columns: 1fr; }
    .pricing-grid { grid-template-columns: 1fr; max-width: 400px; }
    .section-header h2 { font-size: 2.2rem; }
    .showcase-grid { gap: 16px; }
    .showcase-item { flex: 0 0 200px; }
    .footer-inner { flex-direction: column; }
    .footer-links { flex-wrap: wrap; gap: 32px; }
}
@media (max-width: 600px) {
    .nav-links { display: none; position: absolute; top: 100%; left: 0; right: 0; background: rgba(10, 10, 15, 0.98); backdrop-filter: blur(20px); flex-direction: column; padding: 24px; gap: 16px; border-bottom: 1px solid var(--glass-border); }
    .nav-links.open { display: flex; }
    .nav-toggle { display: block; }
    .hero h1 { font-size: 2rem; }
    .hero-stats { flex-wrap: wrap; gap: 20px; }
    .features-grid { grid-template-columns: 1fr; }
    .showcase-grid { flex-direction: column; align-items: center; }
    .showcase-item { flex: 0 0 auto; width: 80%; }
    .download h2 { font-size: 2rem; }
}