:root {
  --bg: #0a0a0a;
  --bg-raised: #141414;
  --bg-raised-hi: #1c1c1c;
  --border: #262626;
  --border-hi: #333;
  --text: #e5e5e5;
  --text-dim: #a3a3a3;
  --text-faint: #737373;
  --accent: #2dd4bf;
  --accent-warm: #f472b6;
  --accent-gold: #d4af37;
  --accent-purple: #8b5cf6;
}

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

html { scroll-behavior: smooth; }

body {
  background: var(--bg);
  color: var(--text);
  font-family: -apple-system, BlinkMacSystemFont, "Inter", "Segoe UI", Roboto, sans-serif;
  font-size: 16px;
  line-height: 1.7;
  min-height: 100vh;
  -webkit-font-smoothing: antialiased;
}

a {
  color: var(--accent);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: border-color 0.15s ease, color 0.15s ease;
}

a:hover { border-bottom-color: var(--accent); }

/* ---------- Top nav ---------- */
.topnav {
  border-bottom: 1px solid var(--border);
  background: rgba(10, 10, 10, 0.85);
  backdrop-filter: blur(12px);
  position: sticky;
  top: 0;
  z-index: 100;
}

.nav-inner {
  max-width: 1100px;
  margin: 0 auto;
  padding: 1rem 1.5rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.nav-brand {
  font-family: "Playfair Display", Georgia, serif;
  font-weight: 700;
  font-size: 1.25rem;
  color: var(--text);
  border-bottom: none;
  letter-spacing: -0.01em;
}

.nav-brand:hover { border-bottom: none; color: var(--accent); }

.nav-links {
  display: flex;
  gap: 1.75rem;
  font-size: 0.92rem;
}

.nav-links a {
  color: var(--text-dim);
  border-bottom: none;
}

.nav-links a:hover { color: var(--text); border-bottom: none; }

/* ---------- Hero ---------- */
.hero {
  padding: 5rem 1.5rem 4rem;
  border-bottom: 1px solid var(--border);
  background: radial-gradient(ellipse at top, rgba(244, 114, 182, 0.05), transparent 60%);
  position: relative;
  overflow: hidden;
}

.hero-inner {
  max-width: 1100px;
  margin: 0 auto;
}

.hero-title {
  font-family: "Playfair Display", Georgia, serif;
  font-size: clamp(2.5rem, 6vw, 4.5rem);
  font-weight: 700;
  line-height: 1.05;
  letter-spacing: -0.02em;
  background: linear-gradient(120deg, #f472b6 0%, #e5e5e5 40%, #2dd4bf 100%);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  margin-bottom: 1.25rem;
}

.hero-sub {
  font-size: clamp(1.1rem, 2vw, 1.25rem);
  color: var(--text-dim);
  max-width: 38rem;
  font-weight: 400;
}

/* ---------- Container + sections ---------- */
.container {
  max-width: 1100px;
  margin: 0 auto;
  padding: 4rem 1.5rem 6rem;
}

.section-title {
  font-family: "Playfair Display", Georgia, serif;
  font-size: 1.75rem;
  font-weight: 600;
  margin-top: 4rem;
  margin-bottom: 1.5rem;
  letter-spacing: -0.01em;
  color: var(--text);
}

.section-title:first-child { margin-top: 0; }

.lead {
  font-size: 1.05rem;
  color: var(--text-dim);
  max-width: 50rem;
  margin-bottom: 1rem;
}

p, ul, ol { margin-bottom: 1rem; color: var(--text-dim); }

ul, ol { padding-left: 1.5rem; }

li { margin-bottom: 0.4rem; }

strong { color: var(--text); font-weight: 600; }

code {
  font-family: "JetBrains Mono", "SF Mono", Consolas, monospace;
  font-size: 0.85em;
  background: var(--bg-raised);
  border: 1px solid var(--border);
  padding: 0.15em 0.4em;
  border-radius: 4px;
  color: var(--text);
}

/* ---------- App grid ---------- */
.app-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 320px), 1fr));
  gap: 1.25rem;
  margin-bottom: 2rem;
}

.app-tile {
  display: block;
  background: var(--bg-raised);
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 1.75rem;
  color: var(--text);
  border-bottom: 1px solid var(--border);
  transition: border-color 0.2s ease, transform 0.2s ease, background 0.2s ease;
  position: relative;
  overflow: hidden;
}

.app-tile::before {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, transparent 60%, rgba(45, 212, 191, 0.04));
  opacity: 0;
  transition: opacity 0.2s ease;
  pointer-events: none;
}

.app-tile:hover {
  border-color: var(--border-hi);
  background: var(--bg-raised-hi);
  transform: translateY(-2px);
}

.app-tile:hover::before { opacity: 1; }

.app-tile h3 {
  font-family: "Playfair Display", Georgia, serif;
  font-size: 1.4rem;
  font-weight: 600;
  margin-bottom: 0.5rem;
  letter-spacing: -0.01em;
  color: var(--text);
}

.app-tile p {
  font-size: 0.92rem;
  margin-bottom: 1rem;
  color: var(--text-dim);
}

.tile-tag {
  display: inline-block;
  font-size: 0.7rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  padding: 0.25rem 0.65rem;
  border-radius: 999px;
  margin-bottom: 0.85rem;
  font-weight: 500;
}

.tile-tag.heartware { background: rgba(244, 114, 182, 0.12); color: var(--accent-warm); }
.tile-tag.masstrap { background: rgba(212, 175, 55, 0.12); color: var(--accent-gold); }
.tile-tag.tpsleague { background: rgba(45, 212, 191, 0.12); color: var(--accent); }
.tile-tag.homework { background: rgba(139, 92, 246, 0.12); color: var(--accent-purple); }

.tile-meta {
  font-size: 0.78rem;
  color: var(--text-faint);
  font-family: "JetBrains Mono", "SF Mono", Consolas, monospace;
  letter-spacing: 0.01em;
}

/* ---------- Inner content pages ---------- */
.content {
  max-width: 720px;
  margin: 0 auto;
  padding: 3rem 1.5rem 6rem;
}

.content-head {
  border-bottom: 1px solid var(--border);
  padding-bottom: 1.5rem;
  margin-bottom: 2.5rem;
}

.content-eyebrow {
  font-size: 0.78rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--text-faint);
  margin-bottom: 0.5rem;
}

.content h1 {
  font-family: "Playfair Display", Georgia, serif;
  font-size: 2.25rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  margin-bottom: 0.5rem;
  color: var(--text);
}

.content h2 {
  font-family: "Playfair Display", Georgia, serif;
  font-size: 1.4rem;
  font-weight: 600;
  margin-top: 2.5rem;
  margin-bottom: 1rem;
  color: var(--text);
}

.content h3 {
  font-size: 1.05rem;
  font-weight: 600;
  margin-top: 1.5rem;
  margin-bottom: 0.5rem;
  color: var(--text);
}

.content p { margin-bottom: 1rem; color: var(--text-dim); }

/* Contact / mailbox-style block */
.contact-block {
  background: var(--bg-raised);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 1.5rem;
  margin: 2rem 0;
  font-size: 0.95rem;
}

.contact-block strong {
  display: block;
  margin-bottom: 0.5rem;
  font-family: "Playfair Display", Georgia, serif;
  font-size: 1.05rem;
  letter-spacing: -0.01em;
  color: var(--text);
}

.contact-block .row {
  display: flex;
  gap: 0.75rem;
  margin-bottom: 0.35rem;
  color: var(--text-dim);
}

.contact-block .row .label {
  min-width: 70px;
  color: var(--text);
  font-weight: 500;
  font-size: 0.88rem;
}

.muted {
  color: var(--text-dim);
  font-size: 0.85rem;
  margin-top: 0.25rem;
}

.last-updated {
  color: var(--text-faint);
  font-size: 0.85rem;
  font-style: italic;
  margin-bottom: 2rem;
}

.toc {
  background: var(--bg-raised);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 1.25rem 1.5rem;
  margin: 2rem 0;
  font-size: 0.9rem;
}

.toc strong {
  display: block;
  margin-bottom: 0.5rem;
  font-size: 0.95rem;
  color: var(--text);
}

.toc ol { margin: 0; padding-left: 1.25rem; color: var(--text-dim); }

.toc li { margin-bottom: 0.2rem; }

.fact-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 200px), 1fr));
  gap: 1rem;
  margin: 1.5rem 0 2rem;
}

.fact {
  background: var(--bg-raised);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 1rem 1.25rem;
}

.fact-label {
  font-size: 0.72rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--text-faint);
  margin-bottom: 0.35rem;
}

.fact-value {
  font-size: 1rem;
  color: var(--text);
  font-weight: 500;
}

footer {
  border-top: 1px solid var(--border);
  margin-top: 4rem;
  padding-top: 2rem;
  font-size: 0.85rem;
  color: var(--text-faint);
  display: flex;
  flex-wrap: wrap;
  gap: 1.5rem;
  align-items: center;
  justify-content: space-between;
}

footer .links {
  display: flex;
  gap: 1.25rem;
  flex-wrap: wrap;
}

footer .links a {
  color: var(--text-faint);
  border-bottom: none;
}

footer .links a:hover { color: var(--text-dim); }

footer .meta { color: var(--text-faint); }

@media (max-width: 600px) {
  .hero { padding: 3rem 1.25rem 2.5rem; }
  .container, .content { padding: 2.5rem 1.25rem 4rem; }
  .nav-inner { padding: 0.85rem 1.25rem; }
  .nav-links { gap: 1rem; font-size: 0.85rem; }
  footer { flex-direction: column; align-items: flex-start; gap: 0.75rem; }
}