:root {
  --bg: #0b1020;
  --bg-2: #111733;
  --card: #161d3d;
  --card-2: #1c2452;
  --text: #e8ecff;
  --muted: #9aa3c7;
  --accent: #6ee7b7;
  --danger: #ef4444;
  --radius: 16px;
  --shadow: 0 10px 30px rgba(0, 0, 0, 0.35);
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
  background: radial-gradient(1200px 600px at 20% -10%, #1a2350 0%, transparent 60%),
              radial-gradient(900px 500px at 100% 10%, #2a1846 0%, transparent 55%),
              var(--bg);
  color: var(--text);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Oxygen, Ubuntu, Cantarell, "Open Sans", "Helvetica Neue", sans-serif;
  -webkit-font-smoothing: antialiased;
  min-height: 100vh;
}

body {
  padding-top: env(safe-area-inset-top);
  padding-bottom: env(safe-area-inset-bottom);
}

/* ====== Hero ====== */

.hero {
  padding: 28px 20px 18px;
  text-align: center;
}
.hero h1 {
  font-size: clamp(22px, 6vw, 38px);
  margin: 0;
  letter-spacing: -0.02em;
  line-height: 1.15;
}
.hero h1 .name {
  /* color set per-participant via inline style="color: …" */
}
.hero h1 .vs {
  font-style: italic;
  font-weight: 300;
  color: var(--muted);
  margin: 0 8px;
}
.subtitle {
  margin: 6px 0 14px;
  color: var(--muted);
  font-size: 14px;
}
.countdown {
  display: inline-block;
  padding: 8px 14px;
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 999px;
  font-size: 13px;
  color: var(--text);
}

main {
  max-width: 960px;
  margin: 0 auto;
  padding: 8px 16px 40px;
  display: grid;
  gap: 16px;
}

.card {
  background: linear-gradient(180deg, var(--card) 0%, var(--card-2) 100%);
  border: 1px solid rgba(255, 255, 255, 0.06);
  border-radius: var(--radius);
  padding: 18px;
  box-shadow: var(--shadow);
}

/* ====== Chart ====== */

.chart-card { padding: 18px 14px 10px; }
.chart-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 0 4px 8px;
}
.chart-header h2 { margin: 0; font-size: 18px; }
.toggle {
  display: inline-flex;
  background: rgba(255, 255, 255, 0.05);
  border-radius: 999px;
  padding: 3px;
  gap: 2px;
}
.toggle button {
  background: transparent;
  border: 0;
  color: var(--muted);
  padding: 6px 12px;
  border-radius: 999px;
  font-size: 12px;
  cursor: pointer;
  font-weight: 600;
}
.toggle button.active {
  background: rgba(255, 255, 255, 0.12);
  color: var(--text);
}
.chart-wrap {
  position: relative;
  height: 280px;
}

/* ====== Leaderboard ====== */

.leaderboard {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 16px;
}

.stat-card .stat-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
}
.stat-card h3 {
  margin: 0;
  font-size: 16px;
  letter-spacing: 0.02em;
  color: var(--user-color, var(--accent));
}
.stat-card.tied .badge { background: rgba(255, 255, 255, 0.08); color: var(--muted); }

.badge {
  font-size: 11px;
  padding: 3px 8px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.08);
  color: var(--muted);
}
.badge.leading { background: rgba(110, 231, 183, 0.18); color: var(--accent); }
.badge.behind { background: rgba(245, 158, 11, 0.18); color: #f59e0b; }

.big-number {
  font-size: 44px;
  font-weight: 700;
  margin: 8px 0 12px;
  letter-spacing: -0.02em;
}
.big-number small {
  font-size: 18px;
  color: var(--muted);
  font-weight: 500;
  margin-left: 4px;
}

.stat-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 8px;
  font-size: 13px;
}
.stat-grid label {
  display: block;
  color: var(--muted);
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: 2px;
}
.stat-grid span { font-weight: 600; }

h2 { margin: 0 0 12px; font-size: 18px; }

/* ====== Entry form ====== */

.entry-form { display: grid; gap: 12px; }
.form-row { display: flex; gap: 10px; flex-wrap: wrap; }
.form-row label {
  flex: 1 1 120px;
  display: flex;
  flex-direction: column;
  font-size: 12px;
  color: var(--muted);
  gap: 6px;
}
.form-row label.grow { flex: 2 1 200px; }
.form-row input,
.form-row select {
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid rgba(255, 255, 255, 0.1);
  color: var(--text);
  padding: 10px 12px;
  border-radius: 10px;
  font-size: 15px;
  font-family: inherit;
}
.form-row input:focus,
.form-row select:focus {
  outline: none;
  border-color: var(--accent);
}
.form-row button {
  align-self: flex-end;
  padding: 10px 18px;
  background: linear-gradient(180deg, var(--accent), #4ade80);
  color: #0b1020;
  border: 0;
  border-radius: 10px;
  font-weight: 700;
  font-size: 14px;
  cursor: pointer;
  min-width: 110px;
}
.form-row button:disabled { opacity: 0.6; cursor: not-allowed; }
.form-msg { margin: 0; font-size: 13px; min-height: 18px; }
.form-msg.error { color: var(--danger); }
.form-msg.success { color: var(--accent); }

/* ====== Entries list ====== */

.entries { display: grid; gap: 8px; font-size: 14px; }
.entry-row {
  display: grid;
  grid-template-columns: 100px 1fr auto;
  align-items: center;
  gap: 10px;
  padding: 10px 12px;
  background: rgba(255, 255, 255, 0.03);
  border-radius: 10px;
}
.entry-row .who {
  font-weight: 600;
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}
.entry-row .date { color: var(--muted); font-size: 13px; }
.entry-row .weight { font-weight: 700; font-variant-numeric: tabular-nums; }

/* ====== Footer ====== */

footer {
  text-align: center;
  padding: 12px;
  color: var(--muted);
  font-size: 12px;
}

/* ====== Landing (M3 will use this) ====== */

.landing-hero {
  max-width: 720px;
  margin: 40px auto 24px;
  padding: 0 20px;
  text-align: center;
}
.landing-hero h1 {
  font-size: clamp(32px, 8vw, 56px);
  letter-spacing: -0.03em;
  margin: 0 0 12px;
  background: linear-gradient(90deg, #6ee7b7, #a78bfa, #f59e0b);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.landing-hero p { color: var(--muted); font-size: 17px; line-height: 1.5; }

/* ====== Loading / empty states ====== */

.loading, .empty {
  text-align: center;
  padding: 40px 20px;
  color: var(--muted);
}

/* ====== Creation form (landing) ====== */

.form-section { margin-bottom: 18px; }
.form-section:last-child { margin-bottom: 0; }

.section-label {
  display: block;
  font-size: 12px;
  color: var(--muted);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  margin-bottom: 10px;
}

.muted { color: var(--muted); font-weight: 400; font-size: 12px; }

.participant-row {
  display: grid;
  grid-template-columns: 1.4fr 1fr 36px;
  gap: 8px;
  margin-bottom: 8px;
}
.participant-row input {
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid rgba(255, 255, 255, 0.1);
  color: var(--text);
  padding: 10px 12px;
  border-radius: 10px;
  font-size: 15px;
  font-family: inherit;
  min-width: 0;
}
.participant-row input:focus {
  outline: none;
  border-color: var(--accent);
}
.participant-row .remove-btn {
  background: rgba(239, 68, 68, 0.12);
  border: 1px solid rgba(239, 68, 68, 0.25);
  color: var(--danger);
  border-radius: 10px;
  cursor: pointer;
  font-size: 18px;
  line-height: 1;
  font-weight: 600;
}
.participant-row .remove-btn:hover {
  background: rgba(239, 68, 68, 0.2);
}

.ghost-btn {
  background: transparent;
  border: 1px dashed rgba(255, 255, 255, 0.2);
  color: var(--text);
  padding: 10px 14px;
  border-radius: 10px;
  font-size: 14px;
  font-weight: 600;
  cursor: pointer;
  font-family: inherit;
  margin-top: 4px;
}
.ghost-btn:hover:not(:disabled) {
  background: rgba(255, 255, 255, 0.04);
  border-color: rgba(255, 255, 255, 0.3);
}
.ghost-btn:disabled { opacity: 0.4; cursor: not-allowed; }

/* ====== Success panel ====== */

.link-box {
  display: flex;
  gap: 8px;
  margin-top: 12px;
}
.link-box input {
  flex: 1;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid rgba(255, 255, 255, 0.1);
  color: var(--text);
  padding: 10px 12px;
  border-radius: 10px;
  font-size: 14px;
  font-family: ui-monospace, "SF Mono", Menlo, monospace;
  min-width: 0;
}
.link-box button {
  padding: 10px 16px;
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(255, 255, 255, 0.12);
  color: var(--text);
  border-radius: 10px;
  font-size: 14px;
  font-weight: 600;
  cursor: pointer;
  white-space: nowrap;
  font-family: inherit;
}
.link-box button:hover { background: rgba(255, 255, 255, 0.12); }

.primary-link {
  display: inline-block;
  padding: 12px 20px;
  background: linear-gradient(180deg, var(--accent), #4ade80);
  color: #0b1020;
  border-radius: 10px;
  font-weight: 700;
  text-decoration: none;
  font-size: 14px;
}
.primary-link:hover { filter: brightness(1.05); }

.pin-list {
  list-style: none;
  padding: 0;
  margin: 10px 0 0;
}
.pin-list li {
  padding: 8px 12px;
  background: rgba(255, 255, 255, 0.03);
  border-radius: 8px;
  margin-bottom: 6px;
  font-size: 14px;
}
.pin-list code {
  background: rgba(255, 255, 255, 0.06);
  padding: 2px 8px;
  border-radius: 4px;
  font-family: ui-monospace, "SF Mono", Menlo, monospace;
}

/* ====== Spinner (success page) ====== */

.spinner-row {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-top: 14px;
  color: var(--muted);
  font-size: 14px;
}
.spinner {
  width: 20px;
  height: 20px;
  border: 2px solid rgba(255, 255, 255, 0.15);
  border-top-color: var(--accent);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
}
@keyframes spin {
  to { transform: rotate(360deg); }
}