/* Mycelium: Old Growth - Official Website Stylesheet */
:root {
  --bg-main: #090806;
  --bg-surface: #13100c;
  --bg-surface-elevated: #1a1611;
  --bg-card: rgba(26, 22, 17, 0.75);
  --bg-glass: rgba(19, 16, 12, 0.85);
  
  --border-subtle: #262018;
  --border-glow: rgba(46, 204, 113, 0.35);
  --border-amber: rgba(245, 158, 11, 0.35);
  
  --color-primary: #2ecc71;
  --color-primary-light: #58d68d;
  --color-primary-dark: #229954;
  --color-accent-amber: #f59e0b;
  --color-accent-cyan: #38bdf8;
  --color-danger: #ef4444;
  
  --text-primary: #f3f4f6;
  --text-secondary: #d1d5db;
  --text-muted: #9ca3af;
  --text-dim: #6b7280;
  
  --glow-green: 0 0 25px rgba(46, 204, 113, 0.25);
  --glow-amber: 0 0 25px rgba(245, 158, 11, 0.25);
  --glow-cyan: 0 0 25px rgba(56, 189, 248, 0.25);
  
  --radius-sm: 8px;
  --radius-md: 14px;
  --radius-lg: 20px;
  --radius-full: 9999px;
  
  --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --font-mono: "JetBrains Mono", "SF Mono", Consolas, Menlo, monospace;
  
  --transition-fast: 0.2s cubic-bezier(0.16, 1, 0.3, 1);
  --transition-normal: 0.3s cubic-bezier(0.16, 1, 0.3, 1);
  --transition-slow: 0.5s cubic-bezier(0.16, 1, 0.3, 1);
}

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

html {
  scroll-behavior: smooth;
  font-family: var(--font-sans);
  background-color: var(--bg-main);
  color: var(--text-primary);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

body {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  background: 
    radial-gradient(circle at 50% 0%, rgba(46, 204, 113, 0.08) 0%, transparent 60%),
    radial-gradient(circle at 10% 40%, rgba(245, 158, 11, 0.04) 0%, transparent 50%),
    radial-gradient(circle at 90% 70%, rgba(56, 189, 248, 0.04) 0%, transparent 50%),
    var(--bg-main);
  background-attachment: fixed;
  overflow-x: hidden;
}

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

.container-narrow {
  max-width: 860px;
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
  color: var(--text-primary);
  font-weight: 700;
  line-height: 1.2;
  letter-spacing: -0.02em;
}

h1 { font-size: clamp(2.4rem, 5vw, 4rem); }
h2 { font-size: clamp(1.8rem, 3.5vw, 2.75rem); }
h3 { font-size: clamp(1.3rem, 2.5vw, 1.75rem); }
p { color: var(--text-secondary); margin-bottom: 1rem; }

a {
  color: var(--color-primary);
  text-decoration: none;
  transition: color var(--transition-fast);
}

a:hover {
  color: var(--color-primary-light);
}

/* Navigation */
.navbar {
  position: sticky;
  top: 0;
  z-index: 100;
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  background: var(--bg-glass);
  border-bottom: 1px solid var(--border-subtle);
  transition: all var(--transition-fast);
}

.nav-container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 76px;
}

.nav-brand {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 1.25rem;
  font-weight: 800;
  color: #ffffff;
  letter-spacing: -0.01em;
}

.nav-brand img {
  width: 42px;
  height: 42px;
  border-radius: var(--radius-sm);
  box-shadow: var(--glow-green);
  border: 1px solid var(--border-glow);
}

.nav-brand span.subtitle {
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--color-accent-amber);
  margin-left: 4px;
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 28px;
  list-style: none;
}

.nav-links a {
  color: var(--text-muted);
  font-size: 0.95rem;
  font-weight: 500;
  transition: color var(--transition-fast);
}

.nav-links a:hover,
.nav-links a.active {
  color: var(--color-primary-light);
}

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

.nav-toggle {
  display: none;
  background: none;
  border: none;
  color: var(--text-primary);
  font-size: 1.5rem;
  cursor: pointer;
  padding: 8px;
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  padding: 12px 24px;
  font-size: 0.95rem;
  font-weight: 600;
  border-radius: var(--radius-full);
  cursor: pointer;
  transition: all var(--transition-fast);
  border: 1px solid transparent;
  text-decoration: none;
  white-space: nowrap;
}

.btn-primary {
  background: linear-gradient(135deg, #2ecc71 0%, #10b981 100%);
  color: #052410;
  font-weight: 700;
  box-shadow: 0 4px 20px rgba(46, 204, 113, 0.35);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 28px rgba(46, 204, 113, 0.5);
  color: #021a0a;
}

.btn-secondary {
  background: var(--bg-surface-elevated);
  border-color: var(--border-subtle);
  color: var(--text-primary);
}

.btn-secondary:hover {
  background: #231e17;
  border-color: rgba(255, 255, 255, 0.15);
  color: #ffffff;
  transform: translateY(-2px);
}

.btn-glow {
  position: relative;
  overflow: hidden;
}

.btn-glow::after {
  content: '';
  position: absolute;
  top: -50%;
  left: -50%;
  width: 200%;
  height: 200%;
  background: radial-gradient(circle, rgba(255, 255, 255, 0.2) 0%, transparent 60%);
  opacity: 0;
  transition: opacity var(--transition-fast);
  pointer-events: none;
}

.btn-glow:hover::after {
  opacity: 1;
}

/* Badges */
.badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 6px 14px;
  border-radius: var(--radius-full);
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.badge-green {
  background: rgba(46, 204, 113, 0.12);
  color: var(--color-primary-light);
  border: 1px solid var(--border-glow);
}

.badge-amber {
  background: rgba(245, 158, 11, 0.12);
  color: var(--color-accent-amber);
  border: 1px solid var(--border-amber);
}

.badge-cyan {
  background: rgba(56, 189, 248, 0.12);
  color: var(--color-accent-cyan);
  border: 1px solid rgba(56, 189, 248, 0.35);
}

/* Hero Section */
.hero-section {
  padding: 80px 0 60px;
  position: relative;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  gap: 48px;
  align-items: center;
}

.hero-content {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.hero-badges {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.hero-title {
  font-size: clamp(2.6rem, 5.5vw, 4.2rem);
  font-weight: 900;
  letter-spacing: -0.03em;
  background: linear-gradient(135deg, #ffffff 30%, #a7f3d0 70%, #d4af37 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.hero-subtitle {
  font-size: clamp(1.1rem, 2vw, 1.35rem);
  color: var(--text-secondary);
  line-height: 1.6;
  max-width: 600px;
}

.hero-cta {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  margin-top: 10px;
}

.hero-meta {
  display: flex;
  align-items: center;
  gap: 24px;
  margin-top: 12px;
  font-size: 0.85rem;
  color: var(--text-muted);
}

.hero-meta-item {
  display: flex;
  align-items: center;
  gap: 6px;
}

.hero-meta-item span.icon {
  color: var(--color-primary);
}

.hero-visual {
  position: relative;
  display: flex;
  justify-content: center;
  align-items: center;
}

.hero-device-frame {
  position: relative;
  width: 100%;
  max-width: 360px;
  border-radius: 36px;
  padding: 10px;
  background: linear-gradient(145deg, #2a2218, #110e0b);
  box-shadow: 
    0 25px 50px -12px rgba(0, 0, 0, 0.8),
    0 0 40px rgba(46, 204, 113, 0.2);
  border: 1px solid rgba(255, 255, 255, 0.12);
  transition: transform var(--transition-normal);
}

.hero-device-frame:hover {
  transform: translateY(-6px) scale(1.02);
}

.hero-device-frame img {
  width: 100%;
  height: auto;
  border-radius: 28px;
  display: block;
}

/* Feature Cards Grid */
.features-section {
  padding: 90px 0;
  border-top: 1px solid var(--border-subtle);
}

.section-header {
  text-align: center;
  max-width: 700px;
  margin: 0 auto 56px;
}

.section-header .badge {
  margin-bottom: 14px;
}

.section-header h2 {
  margin-bottom: 14px;
}

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

.grid-3 {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
}

.grid-2 {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 28px;
}

.feature-card {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: 32px 28px;
  transition: all var(--transition-normal);
  backdrop-filter: blur(10px);
  position: relative;
  overflow: hidden;
}

.feature-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 2px;
  background: linear-gradient(90deg, transparent, var(--color-primary), transparent);
  opacity: 0;
  transition: opacity var(--transition-normal);
}

.feature-card:hover {
  transform: translateY(-4px);
  border-color: var(--border-glow);
  box-shadow: 0 16px 36px rgba(0, 0, 0, 0.5), var(--glow-green);
}

.feature-card:hover::before {
  opacity: 1;
}

.feature-icon {
  width: 52px;
  height: 52px;
  border-radius: var(--radius-md);
  background: rgba(46, 204, 113, 0.1);
  border: 1px solid var(--border-glow);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.6rem;
  margin-bottom: 20px;
  color: var(--color-primary-light);
}

.feature-card.amber .feature-icon {
  background: rgba(245, 158, 11, 0.1);
  border-color: var(--border-amber);
  color: var(--color-accent-amber);
}

.feature-card.cyan .feature-icon {
  background: rgba(56, 189, 248, 0.1);
  border-color: rgba(56, 189, 248, 0.35);
  color: var(--color-accent-cyan);
}

.feature-card h3 {
  margin-bottom: 12px;
}

.feature-card p {
  color: var(--text-muted);
  font-size: 0.95rem;
  line-height: 1.6;
  margin-bottom: 0;
}

/* Screenshot Gallery */
.gallery-section {
  padding: 90px 0;
  border-top: 1px solid var(--border-subtle);
  background: rgba(15, 13, 10, 0.5);
}

.gallery-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
}

.gallery-item {
  position: relative;
  border-radius: var(--radius-md);
  overflow: hidden;
  border: 1px solid var(--border-subtle);
  background: var(--bg-surface-elevated);
  cursor: pointer;
  transition: all var(--transition-normal);
  aspect-ratio: 9 / 19.5;
}

.gallery-item img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  transition: transform var(--transition-slow);
}

.gallery-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, rgba(0,0,0,0.85) 0%, rgba(0,0,0,0.2) 60%, transparent 100%);
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  padding: 20px;
  opacity: 0.9;
  transition: opacity var(--transition-fast);
}

.gallery-item:hover {
  transform: translateY(-6px);
  border-color: var(--border-glow);
  box-shadow: 0 16px 32px rgba(0, 0, 0, 0.7), var(--glow-green);
}

.gallery-item:hover img {
  transform: scale(1.05);
}

.gallery-title {
  font-size: 1.05rem;
  font-weight: 700;
  color: #ffffff;
  margin-bottom: 4px;
}

.gallery-desc {
  font-size: 0.8rem;
  color: var(--text-muted);
  margin-bottom: 0;
}

/* Lightbox Modal */
.lightbox {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.92);
  backdrop-filter: blur(12px);
  z-index: 1000;
  display: none;
  align-items: center;
  justify-content: center;
  padding: 24px;
}

.lightbox.active {
  display: flex;
}

.lightbox-content {
  position: relative;
  max-width: 90vw;
  max-height: 90vh;
  display: flex;
  flex-direction: column;
  align-items: center;
}

.lightbox-content img {
  max-width: 100%;
  max-height: 80vh;
  border-radius: var(--radius-md);
  box-shadow: 0 20px 50px rgba(0,0,0,0.9);
  border: 1px solid rgba(255, 255, 255, 0.15);
}

.lightbox-caption {
  margin-top: 16px;
  text-align: center;
  color: var(--text-secondary);
  font-size: 1rem;
}

.lightbox-close {
  position: absolute;
  top: -40px;
  right: 0;
  background: none;
  border: none;
  color: #fff;
  font-size: 2rem;
  cursor: pointer;
}

/* CTA Banner */
.cta-section {
  padding: 80px 0;
  border-top: 1px solid var(--border-subtle);
}

.cta-banner {
  background: radial-gradient(circle at 50% 50%, rgba(46, 204, 113, 0.15) 0%, rgba(19, 16, 12, 0.95) 70%);
  border: 1px solid var(--border-glow);
  border-radius: var(--radius-lg);
  padding: 56px 40px;
  text-align: center;
  box-shadow: var(--glow-green);
}

.cta-banner h2 {
  margin-bottom: 16px;
}

.cta-banner p {
  font-size: 1.15rem;
  max-width: 620px;
  margin: 0 auto 32px;
  color: var(--text-secondary);
}

.cta-buttons {
  display: flex;
  justify-content: center;
  gap: 16px;
  flex-wrap: wrap;
}

/* Footer */
.footer {
  background: #060504;
  border-top: 1px solid var(--border-subtle);
  padding: 60px 0 32px;
  margin-top: auto;
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 40px;
  margin-bottom: 48px;
}

.footer-brand {
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.footer-brand .brand-title {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 1.2rem;
  font-weight: 700;
  color: #ffffff;
}

.footer-brand .brand-title img {
  width: 32px;
  height: 32px;
  border-radius: 6px;
}

.footer-col h4 {
  font-size: 0.95rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--text-primary);
  margin-bottom: 16px;
}

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

.footer-col a {
  color: var(--text-muted);
  font-size: 0.9rem;
  transition: color var(--transition-fast);
}

.footer-col a:hover {
  color: var(--color-primary-light);
}

.footer-bottom {
  padding-top: 24px;
  border-top: 1px solid var(--border-subtle);
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.85rem;
  color: var(--text-dim);
}

/* Static Content Pages (Privacy, Support, Marketing) */
.page-header {
  padding: 60px 0 40px;
  border-bottom: 1px solid var(--border-subtle);
  margin-bottom: 48px;
}

.page-header h1 {
  margin-bottom: 12px;
}

.page-header p.lead {
  font-size: 1.2rem;
  color: var(--text-muted);
  max-width: 650px;
}

.content-block {
  margin-bottom: 48px;
}

.content-block h2 {
  font-size: 1.6rem;
  margin-bottom: 16px;
  color: var(--text-primary);
  border-bottom: 1px solid var(--border-subtle);
  padding-bottom: 8px;
}

.content-block h3 {
  font-size: 1.25rem;
  margin: 24px 0 12px;
  color: var(--color-primary-light);
}

.content-block p, .content-block li {
  color: var(--text-secondary);
  font-size: 1.02rem;
  line-height: 1.7;
}

.content-block ul, .content-block ol {
  padding-left: 24px;
  margin-bottom: 16px;
}

.content-block li {
  margin-bottom: 8px;
}

/* Callout Box */
.callout {
  background: var(--bg-surface-elevated);
  border-left: 4px solid var(--color-primary);
  padding: 20px 24px;
  border-radius: 0 var(--radius-md) var(--radius-md) 0;
  margin: 24px 0;
}

.callout.amber {
  border-left-color: var(--color-accent-amber);
}

.callout.cyan {
  border-left-color: var(--color-accent-cyan);
}

.callout p:last-child {
  margin-bottom: 0;
}

/* FAQ Accordion */
.faq-list {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.faq-item {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  overflow: hidden;
  transition: border-color var(--transition-fast);
}

.faq-item.active {
  border-color: var(--border-glow);
}

.faq-question {
  width: 100%;
  padding: 20px 24px;
  background: none;
  border: none;
  text-align: left;
  font-size: 1.1rem;
  font-weight: 600;
  color: var(--text-primary);
  cursor: pointer;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.faq-question span.toggle-icon {
  font-size: 1.2rem;
  color: var(--color-primary);
  transition: transform var(--transition-fast);
}

.faq-item.active .faq-question span.toggle-icon {
  transform: rotate(45deg);
}

.faq-answer {
  padding: 0 24px 20px;
  display: none;
  color: var(--text-secondary);
}

.faq-item.active .faq-answer {
  display: block;
}

/* Press Kit & Factsheet Grid */
.factsheet-table {
  width: 100%;
  border-collapse: collapse;
  margin-top: 16px;
}

.factsheet-table tr {
  border-bottom: 1px solid var(--border-subtle);
}

.factsheet-table td {
  padding: 14px 16px;
  font-size: 0.95rem;
}

.factsheet-table td:first-child {
  font-weight: 600;
  color: var(--text-muted);
  width: 220px;
}

.factsheet-table td:last-child {
  color: var(--text-primary);
}

/* Asset Download Cards */
.asset-cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 20px;
  margin-top: 20px;
}

.asset-card {
  background: var(--bg-surface-elevated);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 16px;
  display: flex;
  flex-direction: column;
  gap: 12px;
  transition: all var(--transition-fast);
}

.asset-card:hover {
  border-color: var(--border-glow);
  transform: translateY(-2px);
}

.asset-card img {
  width: 100%;
  height: 140px;
  object-fit: cover;
  border-radius: var(--radius-sm);
}

.asset-card-info {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.asset-card-title {
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--text-primary);
}

/* Mobile Responsiveness */
@media (max-width: 992px) {
  .hero-grid {
    grid-template-columns: 1fr;
    text-align: center;
  }
  
  .hero-content {
    align-items: center;
  }
  
  .hero-subtitle {
    margin: 0 auto;
  }
  
  .hero-cta, .hero-meta {
    justify-content: center;
  }
  
  .grid-3 {
    grid-template-columns: repeat(2, 1fr);
  }
  
  .gallery-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  
  .footer-grid {
    grid-template-columns: 1fr 1fr;
  }
}

@media (max-width: 768px) {
  .nav-links, .nav-actions {
    display: none;
  }
  
  .nav-toggle {
    display: block;
  }
  
  .mobile-menu {
    position: fixed;
    top: 76px;
    left: 0;
    right: 0;
    background: var(--bg-surface);
    border-bottom: 1px solid var(--border-subtle);
    padding: 24px;
    display: flex;
    flex-direction: column;
    gap: 16px;
    transform: translateY(-150%);
    transition: transform var(--transition-normal);
    z-index: 99;
  }
  
  .mobile-menu.active {
    transform: translateY(0);
  }
  
  .mobile-menu a {
    color: var(--text-secondary);
    font-size: 1.1rem;
    padding: 8px 0;
    border-bottom: 1px solid var(--border-subtle);
  }
  
  .grid-3, .grid-2 {
    grid-template-columns: 1fr;
  }
  
  .gallery-grid {
    grid-template-columns: 1fr;
  }
  
  .footer-grid {
    grid-template-columns: 1fr;
  }
  
  .footer-bottom {
    flex-direction: column;
    gap: 12px;
    text-align: center;
  }
}