:root {
  --bg: #f4f7f5;
  --bg-soft: #e9f2eb;
  --surface: #ffffff;
  --surface-alt: #f4faf5;
  --ink: #1c2b22;
  --ink-soft: #5f7568;
  --muted: #97a89e;
  --border: #dce9e0;
  --green: #1f8a4c;
  --green-dark: #146638;
  --gold: #d4a017;
  --gold-dark: #ab7f0f;
  --blue: #0072ce;
  --red: #e0463f;
  --text: var(--ink);
  --shadow: 0 10px 30px -16px rgba(28,43,34,0.22);
}
* { box-sizing: border-box; margin: 0; padding: 0; }
body {
  font-family: 'Poppins', 'Segoe UI', system-ui, -apple-system, sans-serif;
  background: var(--bg);
  color: var(--ink);
  min-height: 100vh;
  padding: 1.5rem 1rem 4rem;
}
.container { max-width: 1200px; margin: 0 auto; }
h1, h2, h3 { font-weight: 800; }
a { color: inherit; }

header.app-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 1.5rem;
  flex-wrap: wrap;
  gap: 0.75rem;
}
.back-link { text-decoration: none; color: var(--ink-soft); font-weight: 700; font-size: 0.9rem; }
.back-link:hover { color: var(--ink); }

.card {
  background: var(--surface);
  border: 1.5px solid var(--border);
  border-radius: 24px;
  padding: 1.5rem;
  box-shadow: var(--shadow);
}
.card + .card { margin-top: 1.25rem; }
.card h2 {
  font-size: 1.15rem;
  margin-bottom: 1rem;
  padding-bottom: 0.75rem;
  border-bottom: 1.5px solid var(--border);
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 0.5rem;
  color: var(--ink);
}

label { font-size: 0.85rem; font-weight: 700; color: var(--ink-soft); display: block; margin-bottom: 0.35rem; }
input[type=text], input[type=number], input[type=tel], select, textarea {
  padding: 0.7rem 0.85rem;
  border: 1.5px solid var(--border);
  border-radius: 14px;
  font-family: inherit;
  font-size: 0.95rem;
  width: 100%;
  background: var(--surface-alt);
  color: var(--ink);
}
input:focus, select:focus, textarea:focus {
  outline: none;
  border-color: var(--green);
  box-shadow: 0 0 0 3px rgba(31,138,76,0.15);
}

button {
  padding: 0.65rem 1.2rem;
  border-radius: 999px;
  font-weight: 700;
  cursor: pointer;
  border: none;
  font-family: inherit;
  font-size: 0.9rem;
  transition: transform 0.1s, background 0.2s, opacity 0.2s, border-color 0.2s;
}
button:active { transform: scale(0.97); }
button:disabled { opacity: 0.4; cursor: not-allowed; }
button.primary { background: var(--green); color: #fff; }
button.primary:hover:not(:disabled) { background: var(--green-dark); }
button.secondary { background: var(--surface-alt); color: var(--ink); border: 1.5px solid var(--border); }
button.secondary:hover:not(:disabled) { border-color: var(--green); color: var(--green); }
button.danger { background: transparent; color: var(--red); border: 1.5px solid var(--red); }
button.danger:hover:not(:disabled) { background: var(--red); color: #fff; }
button.ghost { background: transparent; color: var(--ink-soft); font-weight: 700; }
button.ghost:hover:not(:disabled) { color: var(--ink); }
button.big { padding: 1rem 2.2rem; font-size: 1.1rem; }

/* avatar */
.avatar {
  border-radius: 50%;
  object-fit: cover;
  background: var(--surface-alt);
  border: 3px solid var(--border);
  flex-shrink: 0;
}
.avatar.sm { width: 32px; height: 32px; }
.avatar.md { width: 48px; height: 48px; }
.avatar.lg { width: 84px; height: 84px; }

/* player chips / rows */
.player-grid { display: flex; flex-wrap: wrap; gap: 0.75rem; }
.player-chip {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  padding: 0.5rem 0.85rem 0.5rem 0.5rem;
  border: 1.5px solid var(--border);
  border-radius: 999px;
  background: var(--surface-alt);
  cursor: pointer;
  user-select: none;
}
.player-chip.selected { border-color: var(--green); background: rgba(31,138,76,0.08); }
.player-chip input[type=checkbox] { accent-color: var(--green); width: 16px; height: 16px; }
.player-name { font-weight: 700; }

.player-row {
  display: flex;
  align-items: center;
  gap: 1rem;
  padding: 0.6rem 0.75rem;
  border: 1.5px solid var(--border);
  border-radius: 16px;
  background: var(--surface-alt);
}
.player-row + .player-row { margin-top: 0.5rem; }
.player-row .grow { flex: 1; min-width: 0; }

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

.status-toast {
  position: fixed;
  bottom: 1.5rem;
  right: 1.5rem;
  padding: 0.85rem 1.5rem;
  background: var(--ink);
  color: #fff;
  border-radius: 999px;
  font-weight: 700;
  box-shadow: 0 10px 25px -8px rgba(28,43,34,0.4);
  transform: translateY(150%);
  transition: transform 0.3s cubic-bezier(0.34,1.56,0.64,1);
  z-index: 500;
}
.status-toast.show { transform: translateY(0); }

/* ==================== HERO ==================== */
.lobby-hero { text-align: center; margin-bottom: 1.5rem; }
.lobby-title {
  font-size: 3rem;
  font-weight: 900;
  letter-spacing: -0.02em;
  background: linear-gradient(90deg, var(--green), var(--gold));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.lobby-tagline { color: var(--ink-soft); font-weight: 700; margin-top: 0.25rem; }
.round-count-badge { font-size: 0.8rem; color: var(--muted); font-weight: 700; }

/* ==================== AMOUNT MODE ==================== */
.amount-mode-toggle { display: flex; gap: 0.75rem; flex-wrap: wrap; margin-bottom: 1rem; }
.amount-mode-toggle label {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  flex: 1;
  min-width: 200px;
  padding: 0.75rem 1rem;
  border: 1.5px solid var(--border);
  border-radius: 16px;
  background: var(--surface-alt);
  cursor: pointer;
  font-weight: 700;
  color: var(--ink);
  margin-bottom: 0;
}
.amount-mode-toggle label.active { border-color: var(--green); background: rgba(31,138,76,0.08); }
.amount-mode-toggle input[type=radio] { accent-color: var(--green); width: 16px; height: 16px; }
.amount-mode-toggle .amt-desc { display: block; font-weight: 500; font-size: 0.78rem; color: var(--ink-soft); }

.same-amount-row { max-width: 260px; }
.individual-amount-list .ia-row {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 0.5rem 0.75rem;
  border: 1.5px solid var(--border);
  border-radius: 16px;
  background: var(--surface-alt);
}
.individual-amount-list .ia-row + .ia-row { margin-top: 0.5rem; }
.individual-amount-list .ia-name { flex: 1; font-weight: 700; min-width: 0; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.individual-amount-list .ia-row input { width: 140px; }

/* ==================== PRIZE GRID ==================== */
.prize-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.1rem;
}
@media (max-width: 860px) {
  .prize-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 560px) {
  .prize-grid { grid-template-columns: 1fr; }
}
.prize-card {
  background: var(--surface);
  border: 1.5px solid var(--border);
  border-radius: 22px;
  padding: 1.25rem;
  box-shadow: var(--shadow);
  text-align: center;
}
.prize-card .pc-avatar { width: 72px; height: 72px; margin: 0 auto 0.6rem; }
.prize-card .pc-name { font-size: 1.15rem; font-weight: 800; color: var(--ink); }
.prize-card .pc-qr {
  width: 100%;
  max-width: 200px;
  aspect-ratio: 1 / 1;
  object-fit: contain;
  margin: 0.9rem auto 0.5rem;
  border-radius: 14px;
  border: 1.5px solid var(--border);
  background: var(--surface-alt);
  display: block;
}
.prize-card .pc-phone {
  margin: 0.9rem 0 0.5rem;
  padding: 0.6rem 0.75rem;
  border-radius: 14px;
  background: var(--surface-alt);
  border: 1.5px dashed var(--blue);
  color: var(--blue);
  font-weight: 700;
  letter-spacing: 0.02em;
}
.prize-card .pc-missing {
  margin: 0.9rem 0 0.5rem;
  padding: 0.6rem 0.75rem;
  border-radius: 14px;
  background: var(--surface-alt);
  border: 1.5px dashed var(--muted);
  color: var(--muted);
  font-weight: 600;
  font-size: 0.85rem;
}
.prize-card .pc-amount {
  display: inline-block;
  margin-top: 0.3rem;
  padding: 0.4rem 1.1rem;
  border-radius: 999px;
  background: var(--gold);
  color: #3a2c02;
  font-weight: 900;
  font-size: 1.1rem;
}

.results-hero { text-align: center; margin-bottom: 1.25rem; }
.results-hero .rh-title { font-size: 2rem; font-weight: 900; color: var(--ink); }
.results-hero .rh-sub { color: var(--ink-soft); font-weight: 700; margin-top: 0.25rem; }

/* ==================== ADMIN ==================== */
.qr-upload-row { display: flex; align-items: center; gap: 1rem; flex-wrap: wrap; }
.qr-preview {
  width: 84px;
  height: 84px;
  object-fit: contain;
  border-radius: 12px;
  border: 1.5px solid var(--border);
  background: var(--surface-alt);
}
.player-row .pr-info { display: flex; flex-direction: column; gap: 0.15rem; font-size: 0.8rem; color: var(--ink-soft); }