:root {
  --bg-deep: #10160d;
  --bg-panel: #1b2314;
  --bg-panel-hover: #212b18;
  --border: rgba(201, 189, 143, 0.16);
  --border-strong: rgba(201, 189, 143, 0.32);
  --text: #e8e4d2;
  --text-muted: #9aa382;
  --khaki: #c9bd8f;
  --moss: #6b8e4e;
  --moss-bright: #85b35c;
  --accent-contrast: #0c1108;
  --tag-bg: rgba(232, 228, 210, 0.07);
  --shadow: 0 4px 18px rgba(0, 0, 0, 0.35);
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  color: var(--text);
  background-color: var(--bg-deep);
  background-image:
    radial-gradient(ellipse 650px 420px at 6% 12%, rgba(107, 142, 78, 0.22), transparent 60%),
    radial-gradient(ellipse 520px 360px at 85% 6%, rgba(90, 72, 48, 0.24), transparent 58%),
    radial-gradient(ellipse 720px 520px at 45% 85%, rgba(72, 92, 43, 0.22), transparent 62%),
    radial-gradient(ellipse 460px 320px at 95% 68%, rgba(56, 46, 32, 0.26), transparent 55%),
    radial-gradient(ellipse 560px 400px at 15% 92%, rgba(107, 142, 78, 0.16), transparent 60%),
    radial-gradient(ellipse 380px 300px at 55% 30%, rgba(40, 51, 26, 0.35), transparent 55%);
  background-attachment: fixed;
  background-repeat: no-repeat;
  line-height: 1.5;
}

.site-header {
  padding: 3rem 1.5rem 1.75rem;
  text-align: center;
}

.site-header h1 {
  margin: 0;
  font-size: 2.4rem;
  font-weight: 800;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--khaki);
  text-shadow: 0 2px 12px rgba(0, 0, 0, 0.4);
}

.subtitle {
  margin: 0.5rem 0 0;
  color: var(--text-muted);
  letter-spacing: 0.02em;
}

.updated {
  margin: 0.9rem 0 0;
  font-size: 0.78rem;
  color: var(--text-muted);
  opacity: 0.8;
}

main {
  max-width: 920px;
  margin: 0 auto;
  padding: 0 1.5rem 3rem;
}

.filters {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  justify-content: center;
  margin-bottom: 2.25rem;
}

.chip {
  border: 1px solid var(--border-strong);
  background: var(--tag-bg);
  color: var(--text);
  border-radius: 3px;
  padding: 0.42rem 0.95rem;
  font-size: 0.78rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  cursor: pointer;
  transition: background 0.15s, color 0.15s, border-color 0.15s;
}

.chip:hover {
  border-color: var(--moss-bright);
}

.chip.active {
  background: var(--moss);
  color: var(--accent-contrast);
  border-color: var(--moss);
}

.chip.toggle {
  margin-left: 0.5rem;
  border-style: dashed;
}

.month-heading {
  font-size: 0.9rem;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--khaki);
  margin: 2.25rem 0 0.85rem;
  padding-bottom: 0.4rem;
  border-bottom: 1px solid var(--border);
}

.month-heading:first-of-type {
  margin-top: 0;
}

.card {
  background: var(--bg-panel);
  border: 1px solid var(--border);
  border-radius: 6px;
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 14px), calc(100% - 14px) 100%, 0 100%);
  padding: 1.1rem 1.25rem;
  margin-bottom: 0.85rem;
  display: flex;
  align-items: center;
  gap: 1.1rem;
  box-shadow: var(--shadow);
  transition: background 0.15s, border-color 0.15s;
}

.card:hover {
  background: var(--bg-panel-hover);
  border-color: var(--border-strong);
}

.card-date {
  flex: 0 0 auto;
  width: 3.6rem;
  text-align: center;
  border-right: 1px solid var(--border);
  padding-right: 0.9rem;
}

.card-date .day {
  font-size: 1.6rem;
  font-weight: 800;
  line-height: 1;
  color: var(--moss-bright);
}

.card-date .month {
  font-size: 0.68rem;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.card-body {
  flex: 1 1 auto;
  min-width: 0;
}

.card-body h3 {
  margin: 0 0 0.35rem;
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--text);
}

.badge-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
  margin-bottom: 0.4rem;
}

.badge {
  font-size: 0.68rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  padding: 0.18rem 0.55rem;
  border-radius: 3px;
  background: var(--tag-bg);
  color: var(--text-muted);
  border: 1px solid var(--border);
}

.badge.organizer {
  color: var(--accent-contrast);
  background: var(--khaki);
  border-color: var(--khaki);
}

.meta-row {
  font-size: 0.84rem;
  color: var(--text-muted);
  display: flex;
  flex-wrap: wrap;
  gap: 0 1.1rem;
}

.signup-btn {
  flex: 0 0 auto;
  background: var(--moss);
  color: var(--accent-contrast);
  border: none;
  clip-path: polygon(8px 0, 100% 0, 100% 100%, 0 100%, 0 8px);
  padding: 0.6rem 1.1rem;
  font-weight: 800;
  font-size: 0.78rem;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  text-decoration: none;
  white-space: nowrap;
  transition: background 0.15s;
}

.signup-btn:hover {
  background: var(--moss-bright);
}

.empty-state, .loading, .error {
  text-align: center;
  color: var(--text-muted);
  padding: 2.5rem 1rem;
}

.site-footer {
  text-align: center;
  font-size: 0.78rem;
  color: var(--text-muted);
  padding: 2rem 1.5rem 3rem;
  max-width: 700px;
  margin: 0 auto;
  opacity: 0.85;
}

.site-footer a { color: var(--khaki); }

.site-footer .copyright {
  margin-top: 1rem;
  font-size: 0.72rem;
  letter-spacing: 0.03em;
  opacity: 0.65;
}

@media (max-width: 560px) {
  /* background-attachment: fixed causes scroll jank on mobile Safari - the visual look
     is unaffected by switching to scroll, only how it behaves during momentum scroll. */
  body {
    background-attachment: scroll;
  }

  .site-header {
    padding: 2rem 1.25rem 1.5rem;
  }

  .site-header h1 {
    font-size: 1.65rem;
    letter-spacing: 0.04em;
  }

  main {
    padding: 0 1rem 2rem;
  }

  .card {
    flex-wrap: wrap;
    padding: 0.9rem 1rem;
    gap: 0.75rem;
  }

  /* card-date stays paired with card-body on the first line (both fit the row via
     flex-grow) instead of being isolated alone with empty space next to it - only the
     button drops to its own full-width row below. */
  .signup-btn {
    flex-basis: 100%;
    text-align: center;
  }
}

@media (max-width: 360px) {
  .site-header h1 {
    font-size: 1.4rem;
  }
}