:root {
  --bg-primary: #0A0A0B;
  --bg-secondary: #121214;
  --bg-elevated: #1A1A1E;
  --bg-card: #18181B;
  --bg-card-hover: #1F1F23;
  --border-subtle: rgba(255, 255, 255, 0.06);
  --border-hover: rgba(255, 255, 255, 0.1);
  --text-primary: #F5F5F7;
  --text-secondary: #A1A1AA;
  --text-tertiary: #71717A;
  --accent: #F24E1E;
  --accent-glow: rgba(242, 78, 30, 0.25);
  --accent-bg: rgba(242, 78, 30, 0.1);
  --complementary: #34D399;
  --complementary-bg: rgba(52, 211, 153, 0.1);
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 16px;
  --radius-xl: 20px;
  --shadow-card: 0 1px 3px rgba(0, 0, 0, 0.3), 0 1px 2px rgba(0, 0, 0, 0.2);
  --shadow-hover: 0 10px 40px rgba(0, 0, 0, 0.4), 0 0 0 1px rgba(255, 255, 255, 0.05);
  --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

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

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

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Helvetica, Arial, sans-serif;
  background: var(--bg-primary);
  color: var(--text-primary);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  min-height: 100vh;
}

.skip-link {
  position: absolute;
  top: -100%;
  left: 16px;
  background: var(--accent);
  color: #fff;
  padding: 8px 16px;
  border-radius: var(--radius-sm);
  z-index: 1000;
  text-decoration: none;
  font-size: 0.875rem;
  font-weight: 600;
  transition: top 0.2s;
}
.skip-link:focus { top: 16px; }

::selection { background: var(--accent); color: #fff; }
:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }

/* Header */
.header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(10, 10, 11, 0.85);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border-subtle);
}
.header-inner {
  max-width: 1200px;
  margin: 0 auto;
  padding: 14px 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.logo {
  display: flex;
  align-items: center;
  gap: 12px;
  text-decoration: none;
  color: var(--text-primary);
}
.logo-img {
  display: block;
  width: 180px;
}
.header-tagline {
  font-size: 0.8125rem;
  color: var(--text-tertiary);
  font-weight: 500;
  letter-spacing: 0.5px;
}

@media (max-width: 480px) {
  .header-inner { padding: 12px 16px; }
  .logo-text { font-size: 1.1rem; }
  .header-tagline { font-size: 0.75rem; }
}

/* Hero */
.hero {
  max-width: 1200px;
  margin: 0 auto;
  padding: 80px 24px 60px;
  text-align: center;
  position: relative;
  overflow: hidden;
}
.hero::before {
  content: '';
  position: absolute;
  top: -60%;
  left: 50%;
  transform: translateX(-50%);
  width: 800px;
  height: 800px;
  background: radial-gradient(ellipse, rgba(242, 78, 30, 0.06) 0%, transparent 70%);
  pointer-events: none;
}
.hero-content { position: relative; max-width: 720px; margin: 0 auto; }
.hero-badge {
  display: inline-block;
  padding: 6px 16px;
  border-radius: 100px;
  background: var(--accent-bg);
  color: var(--accent);
  font-size: 0.8125rem;
  font-weight: 600;
  letter-spacing: 0.3px;
  margin-bottom: 24px;
  border: 1px solid rgba(242, 78, 30, 0.2);
  animation: fadeSlideUp 0.6s ease forwards;
}
.hero-title {
  font-size: clamp(2rem, 5vw, 3.25rem);
  font-weight: 800;
  line-height: 1.15;
  letter-spacing: -0.03em;
  margin-bottom: 20px;
  animation: fadeSlideUp 0.6s 0.15s ease forwards;
  opacity: 0;
  transform: translateY(12px);
}
.gradient-text {
  background: linear-gradient(135deg, var(--accent), #FF6B3D, #FF8F65);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.hero-subtitle {
  font-size: clamp(0.95rem, 1.5vw, 1.125rem);
  color: var(--text-secondary);
  max-width: 600px;
  margin: 0 auto;
  line-height: 1.7;
  animation: fadeSlideUp 0.6s 0.3s ease forwards;
  opacity: 0;
  transform: translateY(12px);
}

@media (max-width: 600px) {
  .hero { padding: 48px 16px 40px; }
  .hero-badge { font-size: 0.75rem; padding: 4px 12px; }
}

/* Apps Grid */
.apps {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px 80px;
}
.apps-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}
.app-card {
  position: relative;
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-xl);
  padding: 28px;
  text-decoration: none;
  color: inherit;
  cursor: pointer;
  transition: all var(--transition);
  box-shadow: var(--shadow-card);
  display: flex;
  flex-direction: column;
  gap: 16px;
  animation: fadeSlideUp 0.5s ease forwards;
  opacity: 0;
  transform: translateY(16px);
  overflow: hidden;
  -webkit-tap-highlight-color: transparent;
}
.app-card:hover,
.app-card:focus-visible {
  background: var(--bg-card-hover);
  border-color: rgba(242, 78, 30, 0.3);
  box-shadow: var(--shadow-hover);
  transform: translateY(-4px);
}
.app-card:active { transform: translateY(-1px); }
.app-card:hover .app-icon-wrapper {
  background: var(--accent-bg);
  border-color: rgba(242, 78, 30, 0.3);
}
.app-card:hover .app-icon { transform: scale(1.1); }
.app-card:hover .app-arrow { opacity: 1; transform: translateX(0); }
.app-card:hover .app-indicator { border-color: var(--complementary); }

.app-card::after {
  content: '';
  position: absolute;
  inset: 0;
  border-radius: inherit;
  opacity: 0;
  background: linear-gradient(135deg, rgba(242, 78, 30, 0.03), transparent);
  transition: opacity var(--transition);
  pointer-events: none;
}
.app-card:hover::after { opacity: 1; }

.app-card:nth-child(1) { animation-delay: 0.1s; }
.app-card:nth-child(2) { animation-delay: 0.2s; }
.app-card:nth-child(3) { animation-delay: 0.3s; }
.app-card:nth-child(4) { animation-delay: 0.4s; }
.app-card:nth-child(5) { animation-delay: 0.5s; }
.app-card:nth-child(6) { animation-delay: 0.6s; }

.app-card.wide {
  grid-column: span 2;
}
.app-card.full {
  grid-column: 1 / -1;
}

.app-card-header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 12px;
}
.app-icon-wrapper {
  flex-shrink: 0;
  width: 48px;
  height: 48px;
  border-radius: var(--radius-md);
  background: rgba(242, 78, 30, 0.08);
  border: 1px solid rgba(242, 78, 30, 0.15);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all var(--transition);
}
.app-icon {
  font-size: 1.25rem;
  color: var(--accent);
  transition: transform var(--transition);
}
.app-arrow {
  flex-shrink: 0;
  width: 32px;
  height: 32px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.05);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-tertiary);
  font-size: 0.75rem;
  opacity: 0;
  transform: translateX(-8px);
  transition: all var(--transition);
}

.app-info { flex: 1; }
.app-name {
  font-size: 1.125rem;
  font-weight: 700;
  letter-spacing: -0.01em;
  margin-bottom: 4px;
}
.app-desc {
  font-size: 0.875rem;
  color: var(--text-secondary);
  line-height: 1.5;
}

.app-footer {
  display: flex;
  align-items: center;
  gap: 8px;
  padding-top: 4px;
}
.app-indicator {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--complementary);
  border: 2px solid transparent;
  transition: border-color var(--transition);
  animation: pulse-dot 2s ease-in-out infinite;
}
.app-indicator-label {
  font-size: 0.75rem;
  color: var(--text-tertiary);
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

/* Bento layout: featured cards span 2 cols */
.app-card.featured {
  padding: 32px;
}
.app-card.featured .app-icon-wrapper {
  width: 56px;
  height: 56px;
}
.app-card.featured .app-icon { font-size: 1.5rem; }
.app-card.featured .app-name { font-size: 1.25rem; }

@media (max-width: 1024px) {
  .apps-grid { grid-template-columns: repeat(2, 1fr); }
  .app-card.wide { grid-column: span 2; }
  .app-card.full { grid-column: 1 / -1; }
}

@media (max-width: 640px) {
  .apps { padding: 0 16px 60px; }
  .apps-grid { grid-template-columns: 1fr; }
  .app-card.wide,
  .app-card.featured,
  .app-card.full { grid-column: 1; }
  .app-card { padding: 20px; }
  .app-card.featured { padding: 24px; }
  .app-card.featured .app-icon-wrapper { width: 48px; height: 48px; }
  .app-card.featured .app-icon { font-size: 1.25rem; }
  .app-card.featured .app-name { font-size: 1.125rem; }
  .app-card:active { transform: scale(0.98); }
  .app-arrow { opacity: 1; transform: translateX(0); }
}

/* About */
.about {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px 80px;
}
.about-content {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}
.about-card {
  background: var(--bg-elevated);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: 32px;
  transition: border-color var(--transition);
}
.about-card:hover { border-color: var(--border-hover); }
.about-icon {
  font-size: 1.5rem;
  color: var(--text-tertiary);
  margin-bottom: 16px;
  display: block;
}
.about-title {
  font-size: 1rem;
  font-weight: 700;
  margin-bottom: 10px;
  letter-spacing: -0.01em;
}
.about-text {
  font-size: 0.875rem;
  color: var(--text-secondary);
  line-height: 1.7;
}

@media (max-width: 768px) {
  .about-content { grid-template-columns: 1fr; }
  .about-card { padding: 24px; }
}
@media (max-width: 640px) {
  .about { padding: 0 16px 60px; }
}

/* Author Section */
.author {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px 80px;
}
.author-inner {
  display: flex;
  align-items: center;
  gap: 48px;
}
.author-image {
  flex-shrink: 0;
}
.author-photo {
  display: block;
  width: 240px;
  height: 240px;
  border-radius: 50%;
  object-fit: cover;
  border: 2px solid var(--border-subtle);
}
.author-body {
  flex: 1;
  min-width: 0;
}
.author-name {
  font-size: 1.75rem;
  font-weight: 800;
  letter-spacing: -0.02em;
  margin-bottom: 4px;
}
.author-role {
  font-size: 0.875rem;
  color: var(--text-tertiary);
  font-weight: 500;
  margin-bottom: 16px;
}
.author-bio {
  font-size: 0.9375rem;
  color: var(--text-secondary);
  line-height: 1.7;
  margin-bottom: 24px;
}
.author-links {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
}
.author-link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 16px;
  border-radius: 100px;
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  color: var(--text-secondary);
  font-size: 0.8125rem;
  font-weight: 500;
  text-decoration: none;
  transition: all var(--transition);
}
.author-link:hover {
  background: var(--bg-card-hover);
  border-color: var(--border-hover);
  color: var(--text-primary);
  transform: translateY(-2px);
}

@media (max-width: 768px) {
  .author-inner {
    flex-direction: column;
    text-align: center;
    gap: 24px;
  }
  .author-photo {
    width: 180px;
    height: 180px;
  }
  .author-links { justify-content: center; }
}
@media (max-width: 640px) {
  .author { padding: 0 16px 60px; }
  .author-links { flex-direction: column; }
  .author-link { width: 100%; justify-content: center; }
}

/* Footer */
.footer {
  border-top: 1px solid var(--border-subtle);
  background: var(--bg-secondary);
}
.footer-inner {
  max-width: 1200px;
  margin: 0 auto;
  padding: 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.footer-text {
  font-size: 0.8125rem;
  color: var(--text-tertiary);
}
.footer-heart { color: var(--accent); margin: 0 2px; }
.footer-copy {
  font-size: 0.75rem;
  color: var(--text-tertiary);
}

@media (max-width: 480px) {
  .footer-inner { flex-direction: column; gap: 8px; text-align: center; }
}

/* Animations */
@keyframes fadeSlideUp {
  to { opacity: 1; transform: translateY(0); }
}
@keyframes pulse-dot {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.5; }
}

/* Reduced motion */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation-duration: 0.01ms !important; transition-duration: 0.01ms !important; }
  html { scroll-behavior: auto; }
  .app-card { opacity: 1; transform: none; }
  .hero-title, .hero-subtitle, .hero-badge { opacity: 1; transform: none; }
  .app-arrow { opacity: 1; transform: none; }
}