:root {
  --bg: #0b0f14;
  --bg-alt: #11171f;
  --bg-elev: #161d27;
  --ink: #e6edf3;
  --ink-soft: #8b97a8;
  --ink-mute: #5b6675;
  --brand: #4ade80;
  --brand-dark: #16a34a;
  --accent: #38bdf8;
  --danger: #f87171;
  --line: #1f2937;
  --line-strong: #2a3543;
  --shadow: 0 18px 40px rgba(0, 0, 0, 0.55);
  --mono: ui-monospace, "JetBrains Mono", "SF Mono", Menlo, Consolas, monospace;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: "Inter", "Avenir Next", "Segoe UI", system-ui, sans-serif;
  color: var(--ink);
  background:
    radial-gradient(circle at 12% 8%, rgba(74, 222, 128, 0.10), transparent 38%),
    radial-gradient(circle at 88% 86%, rgba(56, 189, 248, 0.08), transparent 32%),
    var(--bg);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

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

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

a:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 3px;
  border-bottom-color: transparent;
}

.hero {
  position: relative;
  min-height: 62vh;
  display: grid;
  place-items: center;
  padding: 5rem 1.5rem 3.5rem;
  overflow: hidden;
  border-bottom: 1px solid var(--line);
}

.hero-pattern {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(74, 222, 128, 0.06) 1px, transparent 1px),
    linear-gradient(90deg, rgba(74, 222, 128, 0.06) 1px, transparent 1px);
  background-size: 44px 44px;
  mask-image: radial-gradient(ellipse at center, #000 30%, transparent 80%);
  -webkit-mask-image: radial-gradient(ellipse at center, #000 30%, transparent 80%);
  pointer-events: none;
}

.hero-content {
  position: relative;
  max-width: 760px;
  text-align: center;
}

.eyebrow {
  text-transform: uppercase;
  letter-spacing: 0.28em;
  font-size: 0.78rem;
  font-weight: 600;
  font-family: var(--mono);
  color: var(--brand);
  margin: 0 0 1rem;
}

.eyebrow::before {
  content: "// ";
  color: var(--ink-mute);
}

h1,
h2,
h3 {
  line-height: 1.15;
  margin-top: 0;
  color: var(--ink);
  letter-spacing: -0.01em;
}

h1 {
  font-size: clamp(2.4rem, 6vw, 4.2rem);
  margin-bottom: 0.8rem;
  font-weight: 800;
}

h2 {
  font-size: clamp(1.5rem, 3vw, 2.2rem);
  margin-bottom: 0.75rem;
  font-weight: 700;
}

h3 {
  font-size: 1.05rem;
  font-weight: 600;
  font-family: var(--mono);
  color: var(--brand);
}

.lede {
  font-size: clamp(1rem, 2vw, 1.2rem);
  color: var(--ink-soft);
  margin: 0 auto 2rem;
  max-width: 620px;
}

.btn {
  display: inline-block;
  background: var(--brand);
  color: #06120a;
  text-decoration: none;
  font-weight: 700;
  padding: 0.85rem 1.4rem;
  border-radius: 6px;
  border: 1px solid var(--brand);
  box-shadow: 0 0 0 0 rgba(74, 222, 128, 0.4);
  transition: transform 0.15s, box-shadow 0.2s, background 0.15s;
  font-family: var(--mono);
  font-size: 0.95rem;
}

.btn:hover,
.btn:focus-visible {
  background: var(--accent);
  border-color: var(--accent);
  color: #03131c;
  box-shadow: 0 0 0 6px rgba(56, 189, 248, 0.15);
  transform: translateY(-1px);
}

.section {
  width: min(1060px, 94vw);
  margin: 0 auto;
  padding: 3rem 0;
}

.section-heading p {
  margin-top: 0;
  color: var(--ink-soft);
  font-family: var(--mono);
  font-size: 0.92rem;
}

.notes {
  margin: 0 0 1.6rem;
  padding-left: 1.1rem;
  color: var(--ink-soft);
}

.notes li::marker {
  color: var(--brand);
}

.cards {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 1rem;
}

.card {
  border: 1px solid var(--line);
  background: var(--bg-alt);
  border-radius: 10px;
  padding: 1.1rem 1.1rem 1.2rem;
  box-shadow: var(--shadow);
  position: relative;
  transition: border-color 0.2s, transform 0.2s;
}

.card::before {
  content: "";
  position: absolute;
  top: 0;
  left: 1.1rem;
  right: 1.1rem;
  height: 2px;
  background: linear-gradient(90deg, var(--brand), transparent);
  border-radius: 2px;
}

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

.card h3 {
  margin-bottom: 0.4rem;
}

.card p {
  margin: 0;
  font-family: var(--mono);
  color: var(--ink);
  font-size: 0.95rem;
}

.about,
.communities {
  border-top: 1px solid var(--line);
}

.community-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1rem;
}

.community {
  border: 1px solid var(--line);
  border-radius: 10px;
  background: var(--bg-alt);
  padding: 1.2rem;
  transition: border-color 0.2s, background 0.2s;
}

.community:hover {
  border-color: var(--brand);
  background: var(--bg-elev);
}

.community h3 {
  margin-bottom: 0.5rem;
}

.community p {
  color: var(--ink-soft);
  margin: 0 0 0.8rem;
  font-size: 0.95rem;
}

footer {
  margin-top: 2rem;
  border-top: 1px solid var(--line);
  padding: 1.8rem;
  text-align: center;
  color: var(--ink-mute);
  font-family: var(--mono);
  font-size: 0.88rem;
}

::selection {
  background: rgba(74, 222, 128, 0.3);
  color: var(--ink);
}

@media (max-width: 920px) {
  .cards {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .community-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 600px) {
  .hero {
    min-height: 54vh;
    padding-top: 3.5rem;
  }

  .cards {
    grid-template-columns: 1fr;
  }
}

.card-time {
  color: var(--ink-mute);
  font-family: var(--mono);
  font-size: 0.85rem;
  margin-top: 0.25rem;
}

.card-cal {
  margin-top: 0.75rem;
  font-family: var(--mono);
  font-size: 0.85rem;
}

.card-cal a {
  color: var(--brand);
  text-decoration: none;
  border-bottom: 1px dashed var(--line-strong);
  padding-bottom: 1px;
}

.card-cal a:hover {
  border-bottom-color: var(--brand);
}

.section.ethos .ethos-list {
  list-style: none;
  padding: 0;
  margin: 0 0 1.25rem 0;
  display: grid;
  gap: 0.4rem;
}

.section.ethos .ethos-list li {
  padding-left: 1.25rem;
  position: relative;
}

.section.ethos .ethos-list li::before {
  content: "—";
  position: absolute;
  left: 0;
  color: var(--ink-mute);
}

.venue-map {
  margin: 1.25rem auto 0;
  max-width: 720px;
  width: 100%;
}

.venue-map iframe {
  width: 100%;
  height: 360px;
  border: 1px solid var(--border, rgba(255, 255, 255, 0.1));
  border-radius: 12px;
  display: block;
}

.venue-map small {
  display: block;
  margin-top: 0.5rem;
  text-align: center;
  color: var(--ink-mute);
}

@media (max-width: 600px) {
  .venue-map iframe { height: 280px; }
}

.organizer {
  margin-top: 1rem;
  color: var(--ink-mute);
  font-size: 0.9rem;
}

.section.venue p {
  text-align: center;
  color: var(--ink-mute);
}