:root {
  --bg: #f4f6fb;
  --surface: #ffffff;
  --surface-strong: #e1e6f2;
  --text: #1f2937;
  --muted: #6b7280;
  --primary: #2563eb;
  --primary-strong: #1d4ed8;
  --danger: #ef4444;
  --border: #d1d5db;
  --radius: 18px;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: Inter, system-ui, sans-serif;
  color: var(--text);
  background: linear-gradient(180deg, #eef2ff 0%, #f8fafc 100%);
}

.page-shell {
  max-width: 1140px;
  margin: 0 auto;
  padding: 2rem 1.5rem 3rem;
}

.page-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 1.25rem 1.5rem;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: 0 20px 60px rgba(31, 41, 55, 0.08);
  margin-bottom: 1.75rem;
}

.page-header button,
.page-header .player-info {
  min-width: 0;
}

.primary-button,
.secondary-button {
  border: none;
  border-radius: 999px;
  padding: 0.85rem 1.4rem;
  font-size: 0.95rem;
  cursor: pointer;
  transition: transform 120ms ease, box-shadow 120ms ease, background-color 120ms ease;
}

.primary-button {
  color: #fff;
  background: var(--primary);
}

.primary-button:hover {
  background: var(--primary-strong);
  transform: translateY(-1px);
}

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

.secondary-button:hover {
  filter: brightness(0.95);
}

.player-info {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 0.35rem;
  min-width: 0;
}

.player-info .label {
  color: var(--muted);
  font-size: 0.9rem;
}

.split-sections {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1.5rem;
}

.bid-card {
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
  padding: 1.5rem;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 24px;
}

.card-header,
.card-body,
.purchased-players {
  display: flex;
  flex-direction: column;
  gap: 0.85rem;
}

.card-header {
  padding-bottom: 0.5rem;
  border-bottom: 1px solid var(--border);
}

.section-title {
  font-size: 0.9rem;
  color: var(--muted);
}

.card-header strong,
.card-body button,
.purchased-players ul li {
  color: var(--text);
}

.card-body label {
  font-size: 0.95rem;
  font-weight: 600;
}

.card-body input {
  width: 100%;
  padding: 0.95rem 1rem;
  border: 1px solid var(--border);
  border-radius: 14px;
  font-size: 0.95rem;
  color: var(--text);
  background: #f8fafc;
}

.card-body input:focus {
  outline: none;
  border-color: var(--primary);
  box-shadow: 0 0 0 4px rgba(37, 99, 235, 0.12);
}

.card-body {
  gap: 0.95rem;
}

.card-body .actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
}

button:disabled,
.primary-button:disabled,
.secondary-button:disabled {
  opacity: 0.55;
  cursor: not-allowed;
}

.purchased-players ul {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 0.6rem;
}

.purchased-players ul li {
  padding: 0.9rem 1rem;
  border-radius: 14px;
  background: var(--surface-strong);
  border: 1px solid rgba(209, 213, 219, 0.7);
}

.ai-output {
  margin-top: 1.75rem;
  padding: 1rem;
  border-radius: 18px;
  background: rgba(255, 255, 255, 0.85);
  border: 1px solid rgba(209, 213, 219, 0.7);
  min-height: 6rem;
  white-space: pre-wrap;
}

@media (max-width: 880px) {
  .page-header,
  .split-sections {
    flex-direction: column;
  }

  .split-sections {
    grid-template-columns: 1fr;
  }
}