:root {
  color-scheme: light;
  --ink: #141414;
  --ink-2: #2a2a2a;
  --sand: #f3efe7;
  --paper: #fbf7f2;
  --citrus: #f4b728;
  --ember: #e85d3a;
  --moss: #2f6b4f;
  --mist: #c8c3b8;
  --shadow: 0 24px 60px rgba(20, 20, 20, 0.18);
  --card: #ffffff;
  --danger: #b3261e;
  --border: rgba(47, 107, 79, 0.2);
  --muted: #5a554d;
  --sidebar-bg: linear-gradient(180deg, #161616, #1f1f1f);
  --sidebar-text: #f8f2e9;
  --sidebar-link: rgba(248, 242, 233, 0.7);
  --sidebar-link-hover: rgba(255, 255, 255, 0.08);
  --sidebar-link-active: rgba(255, 255, 255, 0.12);
  --surface: #fdfbf7;
}

html.dark {
  color-scheme: dark;
  --ink: #e2e8f0;
  --ink-2: #cbd5f5;
  --sand: #0f172a;
  --paper: #0b1120;
  --mist: #94a3b8;
  --shadow: 0 24px 60px rgba(2, 6, 23, 0.45);
  --card: #111827;
  --border: rgba(148, 163, 184, 0.25);
  --muted: #94a3b8;
  --sidebar-bg: linear-gradient(180deg, #0f172a, #0b1120);
  --sidebar-text: #e2e8f0;
  --sidebar-link: rgba(226, 232, 240, 0.7);
  --sidebar-link-hover: rgba(226, 232, 240, 0.1);
  --sidebar-link-active: rgba(226, 232, 240, 0.18);
  --surface: #0f172a;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: ui-sans-serif, system-ui, -apple-system, "Segoe UI", sans-serif;
  background: radial-gradient(1200px 600px at 10% 10%, rgba(244, 183, 40, 0.22), transparent 60%),
    radial-gradient(1200px 600px at 100% 0%, rgba(232, 93, 58, 0.18), transparent 55%),
    linear-gradient(135deg, var(--paper), var(--sand));
  color: var(--ink);
}

.layout {
  display: flex;
  min-height: 100vh;
}

.sidebar {
  width: 240px;
  background: var(--sidebar-bg);
  border-right: 1px solid var(--border);
  padding: 24px 16px;
  position: sticky;
  top: 0;
  height: 100vh;
  color: var(--sidebar-text);
}

.sidebar-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  margin-bottom: 18px;
}

.brand {
  font-weight: 700;
  letter-spacing: 0.02em;
  color: var(--sidebar-text);
}

.sidebar-nav {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.sidebar-nav a {
  text-decoration: none;
  color: var(--sidebar-link);
  padding: 8px 10px;
  border-radius: 8px;
}

.sidebar-nav a:hover {
  background: var(--sidebar-link-hover);
  color: var(--sidebar-text);
}

.sidebar-nav a.active {
  background: var(--sidebar-link-active);
  font-weight: 700;
  color: var(--sidebar-text);
}

.nav-form {
  margin: 0;
}

.sidebar-toggle {
  display: none;
}

.content {
  flex: 1;
  max-width: 980px;
  padding: 32px 20px 60px;
  margin: 0 auto;
  width: 100%;
}

.hero {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 20px;
  margin-bottom: 24px;
}

.hero h1 {
  margin: 0 0 8px;
  font-size: 2.2rem;
}

.muted {
  color: var(--muted);
}

.card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 20px;
  margin-bottom: 20px;
  box-shadow: var(--shadow);
}

.stack {
  display: grid;
  gap: 12px;
}

.stack-inline {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

textarea {
  width: 100%;
  border-radius: 10px;
  border: 1px solid rgba(47, 107, 79, 0.2);
  padding: 12px;
  font-family: inherit;
  font-size: 1rem;
  background: var(--surface);
}

select {
  width: 100%;
  border-radius: 10px;
  border: 1px solid rgba(47, 107, 79, 0.2);
  padding: 10px 12px;
  font-family: inherit;
  font-size: 1rem;
  background: var(--surface);
}

input {
  width: 100%;
  border-radius: 10px;
  border: 1px solid rgba(47, 107, 79, 0.2);
  padding: 10px 12px;
  font-family: inherit;
  font-size: 1rem;
  background: var(--surface);
}

.grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 20px;
}

.table {
  width: 100%;
  border-collapse: collapse;
}

.table th,
.table td {
  text-align: left;
  padding: 10px 8px;
  border-bottom: 1px solid var(--border);
}

.list {
  list-style: none;
  padding: 0;
  margin: 0;
  display: grid;
  gap: 10px;
}

.list li {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 10px;
}

.inline-form {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 8px;
}

.inline-form.compact {
  margin-top: 0;
}

.inline-form input {
  border-radius: 8px;
  border: 1px solid var(--border);
  padding: 6px 10px;
  font-family: inherit;
}

.tag {
  background: linear-gradient(120deg, var(--citrus), #f6c94e);
  color: #1f1f1f;
  padding: 4px 8px;
  border-radius: 999px;
  font-size: 0.85rem;
  font-weight: 600;
}

.btn {
  border: none;
  padding: 8px 14px;
  border-radius: 8px;
  cursor: pointer;
  font-weight: 600;
  background: #f1eadf;
  color: var(--ink);
}

html.dark .btn {
  background: #1f2937;
  color: #e2e8f0;
  border: 1px solid rgba(148, 163, 184, 0.25);
}

html.dark .btn.primary {
  color: #fff;
}

.btn.primary {
  background: linear-gradient(120deg, var(--moss), #3e8b66);
  color: #fff;
}

.theme-toggle {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  border: 1px solid var(--border);
  background: var(--card);
  color: var(--ink);
  padding: 6px 10px;
  border-radius: 999px;
  font-size: 0.85rem;
  cursor: pointer;
}

.btn.primary:hover {
  filter: brightness(0.95);
}

.btn.toggle {
  min-width: 64px;
}

.btn.toggle.active.paid {
  background: linear-gradient(120deg, var(--moss), #3e8b66);
  color: #fff;
}

.btn.toggle.active.attended {
  background: linear-gradient(120deg, #1a6fb3, #3b82f6);
  color: #fff;
}

.btn.small {
  padding: 6px 10px;
  font-size: 0.85rem;
}

.btn.danger {
  background: var(--danger);
  color: #fff;
}

.back {
  display: inline-block;
  margin-bottom: 8px;
  color: var(--moss);
  text-decoration: none;
}

.auth {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 32px 20px;
}

.auth-card {
  max-width: 420px;
  width: 100%;
}

.error {
  color: var(--danger);
  font-weight: 600;
}

.small-text {
  font-size: 0.9rem;
}

.toggle {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.95rem;
}

.toggle input {
  width: auto;
}

.stats {
  display: flex;
  gap: 16px;
  margin-bottom: 20px;
}

.stat {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 16px;
  flex: 1;
}

@media (max-width: 700px) {
  .layout {
    flex-direction: column;
  }

  .sidebar {
    width: 100%;
    height: auto;
    position: static;
  }

  .sidebar-nav {
    display: none;
  }

  .sidebar.open .sidebar-nav {
    display: flex;
  }

  .sidebar-toggle {
    display: inline-flex;
  }

  .content {
    padding: 20px 16px 40px;
  }

  .hero {
    flex-direction: column;
    align-items: flex-start;
  }

  .stats {
    flex-direction: column;
  }
}