/* ── Reset & base ──────────────────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  --bg:       #0f172a;
  --surface:  #1e293b;
  --border:   #334155;
  --accent:   #38bdf8;
  --accent2:  #818cf8;
  --danger:   #f87171;
  --success:  #4ade80;
  --warn:     #fbbf24;
  --text:     #f1f5f9;
  --muted:    #94a3b8;
  --radius:   12px;
}

body {
  background: var(--bg);
  color: var(--text);
  font-family: 'Segoe UI', system-ui, sans-serif;
  line-height: 1.6;
  min-height: 100vh;
}

h1, h2, h3 { line-height: 1.2; }

a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }

/* ── Layout helpers ────────────────────────────────────────────────── */
.container { max-width: 960px; margin: 0 auto; padding: 1.5rem 1rem; }
.center    { text-align: center; }
.flex      { display: flex; align-items: center; gap: 0.75rem; }
.flex-wrap { flex-wrap: wrap; }
.gap-sm    { gap: 0.5rem; }
.mt-1  { margin-top: 0.5rem; }
.mt-2  { margin-top: 1rem; }
.mt-3  { margin-top: 1.5rem; }
.mt-4  { margin-top: 2rem; }

/* ── Card ──────────────────────────────────────────────────────────── */
.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.25rem 1.5rem;
}

/* ── Buttons ───────────────────────────────────────────────────────── */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.55rem 1.2rem;
  border-radius: 8px;
  border: none;
  font-size: 0.95rem;
  font-weight: 600;
  cursor: pointer;
  transition: opacity 0.15s, transform 0.1s;
}
.btn:disabled { opacity: 0.45; cursor: not-allowed; }
.btn:not(:disabled):hover { opacity: 0.85; }
.btn:not(:disabled):active { transform: scale(0.97); }

.btn-primary  { background: var(--accent);  color: #0f172a; }
.btn-secondary{ background: var(--border);  color: var(--text); }
.btn-success  { background: var(--success); color: #0f172a; }
.btn-danger   { background: var(--danger);  color: #0f172a; }
.btn-warn     { background: var(--warn);    color: #0f172a; }
.btn-sm { padding: 0.35rem 0.8rem; font-size: 0.85rem; }

/* ── Forms ─────────────────────────────────────────────────────────── */
label { display: block; font-size: 0.88rem; color: var(--muted); margin-bottom: 0.3rem; }
input, select {
  width: 100%;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 8px;
  color: var(--text);
  padding: 0.6rem 0.9rem;
  font-size: 1rem;
}
input:focus, select:focus {
  outline: none;
  border-color: var(--accent);
}
.form-group { margin-bottom: 1rem; }

/* ── Badges ────────────────────────────────────────────────────────── */
.badge {
  display: inline-block;
  padding: 0.2rem 0.55rem;
  border-radius: 999px;
  font-size: 0.78rem;
  font-weight: 700;
}
.badge-blue   { background: #1d4ed8; color: #bfdbfe; }
.badge-green  { background: #166534; color: #bbf7d0; }
.badge-yellow { background: #713f12; color: #fef9c3; }
.badge-red    { background: #7f1d1d; color: #fecaca; }
.badge-purple { background: #4c1d95; color: #ede9fe; }

/* ── Alert banners ─────────────────────────────────────────────────── */
.alert {
  padding: 0.75rem 1rem;
  border-radius: 8px;
  font-size: 0.95rem;
}
.alert-success { background: #14532d; color: #bbf7d0; border: 1px solid #166534; }
.alert-error   { background: #450a0a; color: #fecaca; border: 1px solid #7f1d1d; }
.alert-info    { background: #0c2a4a; color: #bae6fd; border: 1px solid #0369a1; }
.alert-warn    { background: #451a03; color: #fef3c7; border: 1px solid #b45309; }

/* ── Court card ────────────────────────────────────────────────────── */
.court-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 1rem;
}
.court-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
}
.court-header {
  background: linear-gradient(135deg, #1d4ed8 0%, #7c3aed 100%);
  padding: 0.6rem 1rem;
  font-weight: 700;
  font-size: 1.05rem;
  letter-spacing: 0.03em;
}
.court-body {
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  align-items: start;
  gap: 0.5rem;
  padding: 1rem;
}
.team-block h4 {
  font-size: 0.82rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--muted);
  margin-bottom: 0.4rem;
}
.team-block .player-name {
  font-size: 0.92rem;
  padding: 0.15rem 0;
}
.vs-divider {
  color: var(--muted);
  font-weight: 700;
  font-size: 1.1rem;
  align-self: center;
}
.team-right { text-align: right; }

/* ── Break list ────────────────────────────────────────────────────── */
.break-list { display: flex; flex-wrap: wrap; gap: 0.5rem; }
.break-chip {
  background: #1e293b;
  border: 1px solid var(--border);
  border-radius: 999px;
  padding: 0.2rem 0.7rem;
  font-size: 0.85rem;
  color: var(--muted);
}

/* ── Player assignment box ─────────────────────────────────────────── */
.assignment-box {
  border-radius: var(--radius);
  padding: 1.5rem;
  text-align: center;
}
.assignment-box.playing {
  border: 2px solid var(--success);
  background: #052e16;
}
.assignment-box.break {
  border: 2px solid var(--warn);
  background: #1c1003;
}
.assignment-box.waiting {
  border: 2px solid var(--border);
  background: var(--surface);
}
.assignment-box .big-label {
  font-size: 2rem;
  font-weight: 800;
  margin: 0.5rem 0;
}
.assignment-box .sub-label {
  color: var(--muted);
  font-size: 0.9rem;
}

/* ── QR container ──────────────────────────────────────────────────── */
.qr-box {
  display: inline-block;
  background: #fff;
  border-radius: 12px;
  padding: 1rem;
  line-height: 0;
}
.qr-box img, .qr-box svg { width: 200px; height: 200px; }

/* ── Header bar ────────────────────────────────────────────────────── */
.topbar {
  background: var(--surface);
  border-bottom: 1px solid var(--border);
  padding: 0.75rem 1.5rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.topbar .logo { font-weight: 800; font-size: 1.1rem; color: var(--accent); }

/* ── Player list table ─────────────────────────────────────────────── */
.player-table { width: 100%; border-collapse: collapse; font-size: 0.9rem; }
.player-table th {
  text-align: left;
  padding: 0.5rem 0.75rem;
  color: var(--muted);
  border-bottom: 1px solid var(--border);
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}
.player-table td { padding: 0.5rem 0.75rem; border-bottom: 1px solid #1e293b; }
.player-table tr:last-child td { border-bottom: none; }
.player-table .inactive td { color: var(--muted); text-decoration: line-through; }

/* ── Spinner ───────────────────────────────────────────────────────── */
.spinner {
  display: inline-block;
  width: 20px; height: 20px;
  border: 3px solid var(--border);
  border-top-color: var(--accent);
  border-radius: 50%;
  animation: spin 0.7s linear infinite;
}
@keyframes spin { to { transform: rotate(360deg); } }

/* ── Toast ─────────────────────────────────────────────────────────── */
#toast {
  position: fixed;
  bottom: 1.5rem;
  left: 50%;
  transform: translateX(-50%);
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 999px;
  padding: 0.6rem 1.4rem;
  font-size: 0.9rem;
  opacity: 0;
  transition: opacity 0.3s;
  pointer-events: none;
  z-index: 100;
}
#toast.show { opacity: 1; }

/* ── Responsive ────────────────────────────────────────────────────── */
@media (max-width: 520px) {
  .court-body { grid-template-columns: 1fr; }
  .vs-divider { display: none; }
  .team-right { text-align: left; }
}