/* PickFun shared design tokens + common chrome — Soft Editorial Light */
*,
*::before,
*::after {
  box-sizing: border-box;
}

:root {
  --bg: #f6f1ea;
  --bg-soft: #fffaf5;
  --panel: #ffffff;
  --ink: #1c1917;
  --muted: #78716c;
  --accent: #0f766e;
  --accent-2: #c2410c;
  --accent-hover: #0d9488;
  --accent-press: #115e59;
  --line: rgba(28, 25, 23, 0.08);
  --success: #15803d;
  --danger: #dc2626;
  --warn: #b45309;
  --radius: 14px;
  --radius-lg: 20px;
  --radius-pill: 999px;
  --shadow: 0 1px 2px rgba(28, 25, 23, 0.04), 0 8px 24px rgba(28, 25, 23, 0.06);
  --font: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  --space-xs: 6px;
  --space-sm: 10px;
  --space-md: 16px;
  --space-lg: 24px;
  --touch: 44px;
  --app-max: 720px;
  /* game-specific: gomoku wood board — cleaner warm wood */
  --board: #e8c98a;
  --board-border: #c9a05a;
}

html,
body {
  margin: 0;
  padding: 0;
  min-height: 100%;
  background:
    radial-gradient(ellipse 120% 60% at 50% -10%, rgba(255, 250, 245, 0.95) 0%, transparent 55%),
    var(--bg);
  color: var(--ink);
  font-family: var(--font);
  -webkit-tap-highlight-color: transparent;
}

body {
  min-height: 100dvh;
}

.app {
  max-width: var(--app-max);
  margin: 0 auto;
  padding: var(--space-md) var(--space-md) 32px;
}

.header {
  margin-bottom: 4px;
}

.header-row {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 12px;
  flex-wrap: wrap;
}

.header h1,
.page-title {
  margin: 0;
  font-size: clamp(1.45rem, 5vw, 2rem);
  letter-spacing: 0.04em;
  line-height: 1.25;
  font-weight: 700;
  color: var(--ink);
  background: none;
  -webkit-background-clip: unset;
  background-clip: unset;
}

.sub,
.subtitle {
  margin: 8px 0 0;
  color: var(--muted);
  font-size: 0.95rem;
  line-height: 1.45;
}

/* Language switch — segmented control */
.lang-switch {
  display: inline-flex;
  align-items: center;
  gap: 2px;
  min-height: 36px;
  padding: 3px;
  border-radius: var(--radius-pill);
  border: 1px solid var(--line);
  background: var(--panel);
  box-shadow: 0 1px 2px rgba(28, 25, 23, 0.03);
  font-size: 0.85rem;
  flex-shrink: 0;
}

.lang-btn {
  appearance: none;
  border: none;
  background: transparent;
  color: var(--muted);
  font: inherit;
  cursor: pointer;
  padding: 6px 12px;
  min-height: 28px;
  border-radius: var(--radius-pill);
  transition: background 0.15s ease, color 0.15s ease;
}

.lang-btn[aria-pressed="true"] {
  background: #ccfbf1;
  color: var(--accent);
  font-weight: 700;
}

.lang-btn:hover:not([aria-pressed="true"]) {
  color: var(--ink);
  background: var(--bg-soft);
}

.lang-btn:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}

.lang-sep {
  display: none;
  color: var(--muted);
  user-select: none;
}

/* Shared buttons */
.btn {
  appearance: none;
  border: 1px solid transparent;
  border-radius: var(--radius);
  padding: 10px 16px;
  min-height: 40px;
  background: var(--accent);
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.18);
  color: #fff;
  font: inherit;
  font-size: 0.95rem;
  font-weight: 600;
  cursor: pointer;
  transition: background 0.15s ease, border-color 0.15s ease, transform 0.1s ease, box-shadow 0.15s ease, opacity 0.15s ease;
}

.btn:hover {
  background: var(--accent-hover);
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.22), 0 2px 8px rgba(15, 118, 110, 0.18);
}

.btn:active {
  transform: scale(0.98);
  background: var(--accent-press);
  box-shadow: none;
}

.btn:disabled {
  opacity: 0.45;
  cursor: not-allowed;
  transform: none;
  box-shadow: none;
}

.btn:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}

.btn-secondary {
  background: var(--panel);
  border-color: var(--line);
  color: var(--ink);
  font-weight: 500;
  box-shadow: none;
}

.btn-secondary:hover {
  border-color: rgba(28, 25, 23, 0.16);
  background: var(--bg-soft);
  box-shadow: 0 1px 2px rgba(28, 25, 23, 0.04);
}

.btn-secondary:active {
  background: #f5f0ea;
  box-shadow: none;
}

.btn-ghost {
  background: var(--panel);
  border-color: var(--line);
  color: var(--ink);
  font-weight: 500;
  box-shadow: none;
}

.btn-ghost:hover {
  border-color: rgba(15, 118, 110, 0.35);
  background: var(--bg-soft);
  box-shadow: none;
}

.btn-primary {
  background: var(--accent);
  border-color: transparent;
  color: #fff;
  font-weight: 600;
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.18);
}

.btn-primary:hover {
  background: var(--accent-hover);
}

.btn-primary:active {
  background: var(--accent-press);
}

/* Toolbar / controls panel */
.toolbar,
.controls {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  align-items: center;
  margin-top: var(--space-md);
  padding: 12px;
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow);
}

.field {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.95rem;
  color: var(--muted);
}

.field select {
  font: inherit;
  padding: 8px 12px;
  min-height: 40px;
  border-radius: var(--radius);
  border: 1px solid var(--line);
  background: var(--panel);
  color: var(--ink);
}

.field select:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}

/* Back home — chip */
.home-nav {
  margin: 10px 0 0;
  font-size: 0.9rem;
}

.home-nav a,
.home-link {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  min-height: 36px;
  padding: 6px 14px;
  border-radius: var(--radius-pill);
  border: 1px solid var(--line);
  background: var(--panel);
  color: var(--accent);
  text-decoration: none;
  font: inherit;
  font-size: 0.9rem;
  box-shadow: 0 1px 2px rgba(28, 25, 23, 0.03);
  transition: border-color 0.15s ease, color 0.15s ease, background 0.15s ease, box-shadow 0.15s ease;
}

.home-nav a:hover,
.home-nav a:focus-visible,
.home-link:hover,
.home-link:focus-visible {
  border-color: rgba(15, 118, 110, 0.28);
  color: var(--accent-hover);
  background: #f0fdfa;
  outline: none;
  text-decoration: none;
}

.hint {
  margin: 12px 4px 0;
  color: var(--muted);
  font-size: 0.85rem;
  line-height: 1.5;
}

@media (max-width: 420px) {
  .app {
    padding: 12px 10px 24px;
  }

  .toolbar,
  .controls {
    gap: 8px;
  }
}