:root {
  color-scheme: light dark;
  --radius-lg: 24px;
  --radius-pill: 999px;
  --tint: #0a84ff;
  --glass-bg: rgba(255, 255, 255, 0.55);
  --glass-bg-strong: rgba(255, 255, 255, 0.7);
  --glass-border: rgba(255, 255, 255, 0.6);
  --glass-shadow: 0 8px 32px rgba(0, 0, 0, 0.12);
  --text: #1c1c1e;
  --text-secondary: rgba(60, 60, 67, 0.6);
  --page-bg: #f2f2f7;
}

@media (prefers-color-scheme: dark) {
  :root {
    --glass-bg: rgba(40, 40, 43, 0.55);
    --glass-bg-strong: rgba(50, 50, 53, 0.7);
    --glass-border: rgba(255, 255, 255, 0.12);
    --glass-shadow: 0 8px 32px rgba(0, 0, 0, 0.45);
    --text: #f2f2f7;
    --text-secondary: rgba(235, 235, 245, 0.6);
    --page-bg: #000;
  }
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  font-family: -apple-system, BlinkMacSystemFont, "SF Pro Text", "SF Pro Display", system-ui, sans-serif;
  -webkit-font-smoothing: antialiased;
  margin: 0 auto;
  max-width: 760px;
  padding: 0 1.25rem 4rem;
  color: var(--text);
  background-color: var(--page-bg);
  background-image:
    radial-gradient(circle at 15% 20%, rgba(10, 132, 255, 0.35), transparent 40%),
    radial-gradient(circle at 85% 15%, rgba(191, 90, 242, 0.3), transparent 40%),
    radial-gradient(circle at 50% 95%, rgba(255, 55, 95, 0.25), transparent 45%);
  background-attachment: fixed;
  min-height: 100vh;
}

a { color: var(--tint); }

:focus-visible { outline: 2px solid var(--tint); outline-offset: 2px; }

/* ---- Home page ---- */

#profile {
  text-align: center;
  margin-top: 2.5rem;
  padding: 2.5rem 2rem;
  border-radius: var(--radius-lg);
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  backdrop-filter: blur(30px) saturate(180%);
  -webkit-backdrop-filter: blur(30px) saturate(180%);
  box-shadow: var(--glass-shadow);
}

.avatar {
  width: 96px;
  height: 96px;
  object-fit: cover;
  border-radius: 50%;
  border: 3px solid rgba(255, 255, 255, 0.6);
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.15);
}

#profile h1 { margin: 1rem 0 0.25rem; font-size: 1.75rem; font-weight: 700; letter-spacing: -0.02em; }
.tagline { margin: 0 0 0.5rem; color: var(--text-secondary); }
.bio { max-width: 480px; margin: 0 auto 1.25rem; line-height: 1.5; }

#profile .links { display: flex; justify-content: center; flex-wrap: wrap; gap: 0.6rem; padding: 0; margin: 0; list-style: none; }

#projects {
  display: grid;
  gap: 1.25rem;
  grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
  margin-top: 2rem;
}

.project-card {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  padding: 1.25rem;
  border-radius: var(--radius-lg);
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  backdrop-filter: blur(24px) saturate(180%);
  -webkit-backdrop-filter: blur(24px) saturate(180%);
  box-shadow: var(--glass-shadow);
  color: inherit;
  text-decoration: none;
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}
.project-card:hover { transform: translateY(-4px); box-shadow: 0 12px 40px rgba(0, 0, 0, 0.18); }
.project-card:active { transform: translateY(-1px) scale(0.99); }

.project-icon { width: 56px; height: 56px; border-radius: 14px; box-shadow: 0 2px 8px rgba(0, 0, 0, 0.15); }
.project-card h2 { margin: 0.25rem 0 0; font-size: 1.1rem; }
.project-card p { margin: 0; color: var(--text-secondary); font-size: 0.9rem; }

/* ---- Shared: glass pills (nav links, store button, policy links) ---- */

.back-link {
  display: inline-flex;
  align-items: center;
  gap: 0.3rem;
  margin: 1.5rem 0 1.25rem;
  padding: 0.5rem 1rem;
  border-radius: var(--radius-pill);
  background: var(--glass-bg-strong);
  border: 1px solid var(--glass-border);
  backdrop-filter: blur(20px) saturate(180%);
  -webkit-backdrop-filter: blur(20px) saturate(180%);
  box-shadow: var(--glass-shadow);
  color: var(--tint);
  font-weight: 500;
  text-decoration: none;
  transition: transform 0.15s ease;
}
.back-link:hover { transform: translateY(-1px); }

.store-button {
  display: inline-block;
  margin-top: 0.75rem;
  padding: 0.65rem 1.4rem;
  border-radius: var(--radius-pill);
  background: linear-gradient(180deg, rgba(10, 132, 255, 0.95), rgba(10, 132, 255, 0.8));
  color: #fff;
  font-weight: 600;
  text-decoration: none;
  box-shadow: 0 4px 14px rgba(10, 132, 255, 0.35), inset 0 1px 0 rgba(255, 255, 255, 0.4);
  transition: transform 0.15s ease, box-shadow 0.15s ease;
}
.store-button:hover { transform: translateY(-1px); box-shadow: 0 6px 20px rgba(10, 132, 255, 0.45), inset 0 1px 0 rgba(255, 255, 255, 0.5); }
.store-button:active { transform: translateY(0) scale(0.97); }

#profile .links a,
.links li a {
  display: inline-block;
  padding: 0.6rem 1.1rem;
  border-radius: var(--radius-pill);
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  backdrop-filter: blur(20px) saturate(180%);
  -webkit-backdrop-filter: blur(20px) saturate(180%);
  box-shadow: var(--glass-shadow);
  color: var(--tint);
  font-weight: 500;
  text-decoration: none;
  transition: transform 0.15s ease;
}
#profile .links a:hover,
.links li a:hover { transform: translateY(-1px); }

/* ---- App detail page ---- */

#app-detail { padding-top: 1rem; }

.app-header {
  display: flex;
  flex-wrap: wrap;
  gap: 1.5rem;
  align-items: center;
  padding: 1.75rem;
  border-radius: var(--radius-lg);
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  backdrop-filter: blur(30px) saturate(180%);
  -webkit-backdrop-filter: blur(30px) saturate(180%);
  box-shadow: var(--glass-shadow);
}

.app-icon { width: 96px; height: 96px; border-radius: 22px; box-shadow: 0 4px 16px rgba(0, 0, 0, 0.2); }
.app-header h1 { margin: 0 0 0.25rem; font-size: 1.5rem; letter-spacing: -0.02em; }
.app-header .tagline { margin: 0; }

.screenshots {
  display: flex;
  gap: 1rem;
  margin: 1.5rem 0;
  padding: 0.25rem;
  overflow-x: auto;
  scroll-snap-type: x mandatory;
}
.screenshots img {
  height: 420px;
  border-radius: 28px;
  border: 1px solid var(--glass-border);
  box-shadow: 0 8px 30px rgba(0, 0, 0, 0.25);
  scroll-snap-align: center;
}

.description {
  padding: 1.5rem;
  border-radius: var(--radius-lg);
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  backdrop-filter: blur(24px) saturate(180%);
  -webkit-backdrop-filter: blur(24px) saturate(180%);
  box-shadow: var(--glass-shadow);
  line-height: 1.6;
}
.description p,
.description ul { margin: 0 0 1rem; }
.description p:last-child,
.description ul:last-child { margin-bottom: 0; }
.description ul { padding-left: 1.25rem; }
.description li { margin-bottom: 0.35rem; }

.links { list-style: none; padding: 0; margin: 1.5rem 0 0; display: flex; flex-wrap: wrap; gap: 0.6rem; }

/* ---- Privacy page ---- */

#privacy {
  padding: 2rem;
  margin-top: 2rem;
  border-radius: var(--radius-lg);
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  backdrop-filter: blur(30px) saturate(180%);
  -webkit-backdrop-filter: blur(30px) saturate(180%);
  box-shadow: var(--glass-shadow);
  line-height: 1.6;
}
#privacy h1 { margin-top: 0; font-size: 1.5rem; letter-spacing: -0.02em; }
#privacy h2 {
  margin-top: 1.75rem;
  font-size: 0.8rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--text-secondary);
}
#privacy .updated { color: var(--text-secondary); font-size: 0.9rem; }
#privacy ul { padding-left: 1.25rem; }

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  * { transition: none !important; }
}