:root {
  color-scheme: dark;
  --bg: #0c1a2e;
  --card: #172b45;
  --card-soft: #10213a;
  --border: rgba(204, 228, 255, 0.16);
  --border-strong: rgba(183, 149, 255, 0.55);
  --text: #f5f9ff;
  --text-sec: #bfcde3;
  --text-light: #8296b4;
  --input-bg: #0a1728;
  --primary: #ffa04a;
  --primary-hover: #ffb36b;
  --primary-soft: rgba(255, 160, 74, 0.14);
  --primary-strong: #ffb36b;
  --success: #3dd68c;
  --warning: #ffc25e;
  --danger: #ff6b7a;
  --accent: #b795ff;
  --correct: #2fbf78;
  --close: #e79b2e;
  --wrong: #5d718c;
  --shadow: 0 18px 42px rgba(2, 10, 24, 0.34);
  --shadow-lg: 0 28px 80px rgba(2, 10, 24, 0.52);
  --radius: 4px;
  --radius-sm: 3px;
  --sky: #5ec9ff;
  --sky-soft: rgba(94, 201, 255, 0.14);
  --accent-soft: rgba(183, 149, 255, 0.18);
}

.language-select { --language-accent: var(--primary); }

html { background: var(--bg); }

body {
  position: relative;
  background:
    radial-gradient(circle at 82% -12%, rgba(51, 139, 255, 0.22), transparent 34rem),
    radial-gradient(circle at 4% 88%, rgba(124, 77, 255, 0.2), transparent 30rem),
    radial-gradient(circle at 18% 42%, rgba(255, 160, 74, 0.07), transparent 22rem),
    repeating-linear-gradient(118deg, transparent 0 92px, rgba(204, 228, 255, 0.018) 92px 93px),
    var(--bg);
}

body::before {
  position: fixed;
  inset: -25vmax;
  z-index: 0;
  content: '';
  pointer-events: none;
  background:
    radial-gradient(circle at 28% 34%, rgba(94, 201, 255, 0.09), transparent 18%),
    radial-gradient(circle at 72% 62%, rgba(183, 149, 255, 0.13), transparent 22%),
    radial-gradient(circle at 82% 18%, rgba(255, 160, 74, 0.06), transparent 12%);
  filter: none;
  animation: none;
}

#root {
  position: relative;
  z-index: 1;
  isolation: isolate;
}

@keyframes ambient-drift {
  0% { transform: translate3d(-2%, -1%, 0) rotate(-2deg) scale(1); }
  100% { transform: translate3d(3%, 2%, 0) rotate(3deg) scale(1.08); }
}

@keyframes surface-enter {
  from { opacity: 0; transform: translate3d(0, 16px, 0); }
  to { opacity: 1; transform: translate3d(0, 0, 0); }
}

@keyframes neon-pulse {
  0%, 100% { opacity: 0.65; filter: brightness(0.9); }
  50% { opacity: 1; filter: brightness(1.18); }
}

@keyframes urgent-pulse {
  0%, 100% { opacity: 1; text-shadow: 0 0 0 rgba(255, 101, 120, 0); }
  50% { opacity: 0.72; text-shadow: 0 0 18px rgba(255, 101, 120, 0.7); }
}

* {
  scrollbar-color: rgba(183, 149, 255, 0.5) rgba(255, 255, 255, 0.05);
  scrollbar-width: thin;
}

*::-webkit-scrollbar { width: 8px; height: 8px; }
*::-webkit-scrollbar-track { background: rgba(255, 255, 255, 0.04); }
*::-webkit-scrollbar-thumb { background: linear-gradient(180deg, rgba(183, 149, 255, 0.6), rgba(94, 201, 255, 0.6)); border-radius: 0; }

.page {
  position: relative;
  background:
    linear-gradient(180deg, rgba(51, 139, 255, 0.08), transparent 42%),
    transparent;
}

.page-scroll {
  background:
    linear-gradient(90deg, rgba(255, 255, 255, 0.018) 1px, transparent 1px) 0 0 / 72px 72px,
    linear-gradient(rgba(255, 255, 255, 0.014) 1px, transparent 1px) 0 0 / 72px 72px;
}

.page-scroll > * {
  animation: surface-enter 0.52s cubic-bezier(0.2, 0.72, 0.25, 1) both;
}
.page-scroll > :nth-child(2) { animation-delay: 55ms; }
.page-scroll > :nth-child(3) { animation-delay: 100ms; }
.page-scroll > :nth-child(4) { animation-delay: 145ms; }

.header-bar {
  position: relative;
  background: rgba(10, 24, 43, 0.92);
  border-bottom-color: rgba(204, 228, 255, 0.14);
  box-shadow: 0 12px 34px rgba(2, 10, 24, 0.34);
}

.home-page .header-bar {
  background: rgba(10, 24, 43, 0.99);
  backdrop-filter: none;
}

.header-bar::after {
  position: absolute;
  right: var(--page-inline);
  bottom: -1px;
  width: clamp(48px, 9vw, 120px);
  height: 2px;
  content: '';
  background: linear-gradient(90deg, var(--accent), var(--primary));
  box-shadow: 0 0 20px rgba(183, 149, 255, 0.42);
  animation: neon-pulse 2.8s ease-in-out infinite;
}

.home-page .header-bar::after { animation: none; }

.header-bar .title {
  color: #fff;
  font-family: Bahnschrift, 'Arial Narrow', 'Microsoft YaHei', sans-serif;
  font-style: italic;
  font-weight: 800;
  letter-spacing: 0.045em;
  text-transform: uppercase;
}

.header-bar .title::before {
  content: '//';
  color: var(--primary);
  font-style: normal;
  letter-spacing: -0.18em;
  margin-right: 4px;
}

.home-page .header-bar .title::before { content: none; }

.status-bar {
  background: rgba(16, 33, 58, 0.96);
  border-bottom-color: rgba(204, 228, 255, 0.11);
  color: var(--text-sec);
}

.status-bar > svg { color: var(--primary); }

.auth-pending {
  background: linear-gradient(90deg, #10213a 25%, #1d3a5e 50%, #10213a 75%);
  background-size: 200% 100%;
}

.btn {
  position: relative;
  overflow: hidden;
  border-color: transparent;
  border-radius: 2px;
  background: var(--primary);
  color: #0b1526;
  font-family: Bahnschrift, 'Arial Narrow', 'Microsoft YaHei', sans-serif;
  font-weight: 750;
  letter-spacing: 0.035em;
  text-transform: uppercase;
  box-shadow: 0 8px 20px rgba(255, 160, 74, 0.22);
  clip-path: polygon(0 0, calc(100% - 9px) 0, 100% 9px, 100% 100%, 9px 100%, 0 calc(100% - 9px));
}

.btn::after {
  position: absolute;
  inset: -40% auto -40% -65%;
  width: 42%;
  content: '';
  pointer-events: none;
  background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.34), transparent);
  transform: skewX(-18deg);
  transition: left 0.5s cubic-bezier(0.2, 0.7, 0.2, 1);
}

.btn:hover:not(:disabled) {
  background: var(--primary-hover);
  color: #0b1526;
  box-shadow: 0 12px 28px rgba(255, 160, 74, 0.32);
}

.btn:hover:not(:disabled)::after,
.btn:focus-visible::after { left: 125%; }

.btn-ghost {
  border-color: rgba(204, 228, 255, 0.2);
  background: rgba(255, 255, 255, 0.045);
  color: var(--text);
  box-shadow: none;
}

.btn-ghost:hover:not(:disabled) {
  border-color: var(--accent);
  background: var(--accent-soft);
  color: var(--accent);
}

.btn-success,
.btn-green { background: var(--success); color: #061a12; }
.btn-success:hover:not(:disabled),
.btn-green:hover:not(:disabled) { background: #4de3a0; color: #061a12; }
.btn-warning { background: var(--warning); color: #241306; }
.btn-warning:hover:not(:disabled) { background: #ffcf82; color: #241306; }
.btn-danger,
.btn-red { background: var(--danger); color: #280b12; }
.btn-danger:hover:not(:disabled),
.btn-red:hover:not(:disabled) { background: #ff8190; color: #280b12; }
.btn-accent { background: var(--accent); color: #170b23; }
.btn-accent:hover:not(:disabled) { background: #c9aaff; color: #170b23; }
.btn:focus-visible,
.input:focus-visible,
.opt-btn:focus-visible,
.room-code-toggle:focus-visible,
.menu-card:focus-visible,
.confirm-close:focus-visible {
  outline-color: rgba(183, 149, 255, 0.7);
}

.card {
  position: relative;
  border-color: rgba(204, 228, 255, 0.13);
  border-radius: 4px;
  background:
    linear-gradient(145deg, rgba(24, 46, 76, 0.98), rgba(14, 29, 51, 0.98));
  box-shadow: var(--shadow);
  transition: border-color 0.24s ease, box-shadow 0.24s ease, transform 0.24s ease;
}

.card::before {
  position: absolute;
  top: -1px;
  left: 18px;
  width: 56px;
  height: 3px;
  content: '';
  background: linear-gradient(90deg, var(--accent), var(--primary));
  box-shadow: 0 0 18px rgba(183, 149, 255, 0.34);
  animation: neon-pulse 3.4s ease-in-out infinite;
}

.card h3 {
  color: #fff;
  font-family: Bahnschrift, 'Arial Narrow', 'Microsoft YaHei', sans-serif;
  font-weight: 750;
  letter-spacing: 0.025em;
}

.input,
select.input,
textarea.input {
  border-color: rgba(204, 228, 255, 0.18);
  border-radius: 2px;
  background: var(--input-bg);
  color: var(--text);
  caret-color: var(--primary);
}

.input::placeholder,
textarea.input::placeholder { color: #7085a5; }

.input:hover:not(:disabled) { border-color: rgba(204, 228, 255, 0.32); }

.input:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(183, 149, 255, 0.18);
}

select.input { color-scheme: dark; }
.muted { color: var(--text-light); }
.error { color: var(--danger); }

.game-table-wrap {
  border-color: rgba(204, 228, 255, 0.12);
  border-radius: 2px;
  background: #0b1a2e;
}

.stats-summary-table tr:hover { background: rgba(255, 255, 255, 0.025); }
.stats-summary-table td:last-child { color: var(--primary); }

.game-table th { background: #10213a; color: var(--primary); }
.game-table td {
  border-color: rgba(204, 228, 255, 0.12);
  border-radius: 2px;
  background: #1a3050;
  color: #fff;
  box-shadow: none;
}
.game-table td.correct { color: #061a12; }
.game-table td.close { color: #241306; }
/* 猜测行的入场动画统一在 game.css(不做垂直位移),此处不再重复定义 */
.game-table td.correct,
.game-table td.close { transition: filter 0.2s ease, transform 0.2s ease; }

.input-dock {
  border-top-color: rgba(204, 228, 255, 0.14);
  background: rgba(10, 24, 43, 0.96);
  box-shadow: 0 -14px 34px rgba(2, 10, 24, 0.34);
}

.autocomplete-list {
  border-color: rgba(204, 228, 255, 0.16);
  border-radius: 2px;
  background: #142a48;
  box-shadow: 0 -16px 38px rgba(2, 10, 24, 0.5);
}

.autocomplete-list li { border-radius: 1px; }
.autocomplete-list li:hover,
.autocomplete-list li.active { background: var(--primary); color: #0b1526; }

.overlay,
.confirm-backdrop,
.replay-backdrop,
.admin-player-backdrop {
  background: rgba(3, 10, 22, 0.78);
  backdrop-filter: blur(8px);
  animation: backdrop-enter 0.22s ease-out both;
}

.overlay-card,
.confirm-dialog,
.replay-dialog,
.admin-player-dialog {
  border-color: rgba(204, 228, 255, 0.15);
  border-radius: 4px;
  background: linear-gradient(145deg, #1a304e, #10213a);
  color: var(--text);
  box-shadow: var(--shadow-lg);
  animation: dialog-enter 0.32s cubic-bezier(0.18, 0.78, 0.24, 1) both;
}

@keyframes backdrop-enter {
  from { opacity: 0; }
  to { opacity: 1; }
}

@keyframes dialog-enter {
  from { opacity: 0; transform: translate3d(0, 18px, 0) scale(0.97); }
  to { opacity: 1; transform: translate3d(0, 0, 0) scale(1); }
}

.overlay-card h2,
.confirm-heading h2,
.replay-heading h2,
.admin-player-dialog-heading h2 {
  color: #fff;
  font-family: Bahnschrift, 'Arial Narrow', 'Microsoft YaHei', sans-serif;
  font-style: italic;
  font-weight: 800;
  letter-spacing: 0.03em;
}

.confirm-close { color: var(--text-light); }
.confirm-close:hover { background: rgba(204, 228, 255, 0.1); color: #fff; }
.replay-answer,
.admin-player-flags { border-color: rgba(204, 228, 255, 0.13); background: #0c1c33; }
.character-info-table td { border-bottom-color: rgba(204, 228, 255, 0.1); }
.character-info-table td.label { color: var(--text-light); }