/*
 * style.css —「摸鱼」全站样式
 * 视觉语言：纸面留白、细线、低饱和池塘、系统字体、克制动效。
 * 分区：变量 / 基础 / 页头 / 游戏区 / 提示与按钮 / 伪装编辑器 / 响应式 / 降级。
 */

/* ===== 01. 变量与基础 ===== */
:root {
  --color-bg: #FAFAF7;
  --color-text: #0E1116;
  --color-muted: #6B7280;
  --color-line: #E5E5E0;
  --color-accent: #2B6E8F;
  --color-number: #E8734A;

  --font-serif: "Noto Serif SC", "Songti SC", "STSong", "SimSun", serif;
  --font-sans: system-ui, -apple-system, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  --font-mono: ui-monospace, SFMono-Regular, Menlo, Consolas, "Liberation Mono", monospace;

  --gutter: clamp(24px, 5vw, 48px);
  --pond-width: 900px;
  --radius: 3px;
  --ease: cubic-bezier(0.22, 1, 0.36, 1);
  --duration: 280ms;

  --editor-bg: #0E1116;
  --editor-panel: #141A20;
  --editor-line: rgba(229, 229, 224, 0.13);
  --editor-text: #E5E5E0;
  --editor-muted: #9AA1A9;
  --editor-accent: #9CBECC;
  --editor-warm: #E8734A;
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  -webkit-text-size-adjust: 100%;
  text-size-adjust: 100%;
}

@media (prefers-reduced-motion: no-preference) {
  html {
    scroll-behavior: smooth;
  }
}

body {
  margin: 0;
  min-height: 100vh;
  min-height: 100svh;
  background: var(--color-bg);
  color: var(--color-text);
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.75;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

body.boss-active {
  overflow: hidden;
}

h1,
h2,
p {
  margin: 0;
}

button {
  color: inherit;
  font: inherit;
}

canvas {
  display: block;
}

[hidden] {
  display: none !important;
}

::selection {
  background: var(--color-accent);
  color: #FFFFFF;
}

:focus-visible {
  outline: 2px solid var(--color-accent);
  outline-offset: 4px;
  border-radius: 1px;
}

button:focus:not(:focus-visible) {
  outline: none;
}

.visually-hidden {
  position: absolute !important;
  width: 1px !important;
  height: 1px !important;
  padding: 0 !important;
  margin: -1px !important;
  overflow: hidden !important;
  clip: rect(0 0 0 0) !important;
  white-space: nowrap !important;
  border: 0 !important;
}

.skip-link {
  position: fixed;
  z-index: 300;
  top: 12px;
  left: 12px;
  padding: 10px 16px;
  background: var(--color-text);
  color: var(--color-bg);
  font-size: 13px;
  text-decoration: none;
  transform: translateY(-160%);
  transition: transform 220ms var(--ease);
}

.skip-link:focus {
  transform: translateY(0);
}

.page-shell {
  width: 100%;
  max-width: calc(var(--pond-width) + var(--gutter) * 2);
  min-height: 100vh;
  min-height: 100svh;
  margin-inline: auto;
  padding-inline: var(--gutter);
}

/* ===== 02. 页头 ===== */
.site-header {
  display: flex;
  padding: clamp(22px, 4vw, 34px) 0 16px;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  border-bottom: 1px solid var(--color-line);
}

.brand {
  font-family: var(--font-serif);
  font-size: 18px;
  font-weight: 600;
  letter-spacing: 0.18em;
  line-height: 1.4;
}

.daily-status {
  display: inline-flex;
  align-items: baseline;
  gap: 10px;
  color: var(--color-muted);
  font-size: 11px;
  letter-spacing: 0.08em;
  line-height: 1.6;
  white-space: nowrap;
}

.daily-status time {
  color: var(--color-text);
  font-size: 13px;
  font-variant-numeric: tabular-nums;
  letter-spacing: 0.08em;
}

/* ===== 03. 池塘与分值 ===== */
.pond-main {
  padding-top: clamp(44px, 7vw, 72px);
  padding-bottom: clamp(64px, 10vw, 112px);
}

.pond {
  width: 100%;
}

.pond-head {
  display: flex;
  margin-bottom: clamp(24px, 4vw, 34px);
  align-items: flex-end;
  justify-content: space-between;
  gap: 32px;
}

.eyebrow {
  padding-bottom: 6px;
  color: var(--color-muted);
  font-size: 10px;
  font-weight: 500;
  letter-spacing: 0.18em;
  line-height: 1.8;
}

.eyebrow span {
  padding-inline: 3px;
  color: var(--color-accent);
}

.score-block {
  display: flex;
  align-items: flex-end;
  flex-direction: column;
  gap: 4px;
  flex: 0 0 auto;
}

.score-label {
  color: var(--color-muted);
  font-size: 10px;
  letter-spacing: 0.16em;
  line-height: 1.6;
}

.score-value {
  min-width: 2.6ch;
  color: var(--color-number);
  font-family: var(--font-serif);
  font-size: clamp(34px, 5.4vw, 50px);
  font-weight: 600;
  letter-spacing: 0.01em;
  line-height: 1;
  text-align: right;
  font-variant-numeric: tabular-nums;
}

.pond-stage {
  position: relative;
  width: 100%;
  overflow: hidden;
  border: 1px solid var(--color-line);
  border-radius: var(--radius);
  aspect-ratio: 16 / 9;
  background: var(--color-bg);
}

#pond-canvas {
  width: 100%;
  height: 100%;
  cursor: grab;
  touch-action: none;
  user-select: none;
  -webkit-user-select: none;
  -webkit-tap-highlight-color: transparent;
}

.pond-stage.is-holding #pond-canvas {
  cursor: grabbing;
}

#pond-canvas:focus-visible {
  outline: 2px solid var(--color-accent);
  outline-offset: -4px;
}

.pause-overlay {
  position: absolute;
  z-index: 2;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-direction: column;
  gap: 5px;
  background: rgba(250, 250, 247, 0.92);
  cursor: default;
}

.pause-title {
  font-family: var(--font-serif);
  font-size: 21px;
  font-weight: 600;
  letter-spacing: 0.06em;
  line-height: 1.5;
}

.pause-note {
  color: var(--color-muted);
  font-size: 10px;
  letter-spacing: 0.06em;
  line-height: 1.8;
}

/* ===== 04. 提示、状态与按钮 ===== */
.notice-line {
  min-height: 32px;
  padding-top: 10px;
  color: var(--color-muted);
  font-size: 12px;
  letter-spacing: 0.03em;
  line-height: 1.8;
  opacity: 0;
  transition: opacity 260ms var(--ease);
}

.notice-line.is-visible {
  opacity: 1;
}

.pond-footer {
  display: flex;
  padding-top: 18px;
  border-top: 1px solid var(--color-line);
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}

.instruction {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  color: var(--color-muted);
  font-size: 12px;
  letter-spacing: 0.04em;
  line-height: 1.7;
}

.instruction::before {
  content: "";
  width: 17px;
  height: 1px;
  flex: 0 0 auto;
  background: var(--color-accent);
}

.pond-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.button {
  display: inline-flex;
  min-height: 44px;
  padding: 10px 15px;
  align-items: center;
  justify-content: center;
  gap: 8px;
  border: 1px solid var(--color-line);
  border-radius: 2px;
  background: transparent;
  color: var(--color-text);
  font-size: 12px;
  letter-spacing: 0.03em;
  line-height: 1.4;
  cursor: pointer;
  transition:
    color 220ms var(--ease),
    border-color 220ms var(--ease),
    background-color 220ms var(--ease);
}

.button:hover {
  border-color: var(--color-accent);
  color: var(--color-accent);
}

.button:active {
  background: rgba(43, 110, 143, 0.04);
}

.button-quiet {
  color: var(--color-muted);
}

.button kbd {
  padding: 1px 5px;
  border: 1px solid var(--color-line);
  border-radius: 2px;
  color: var(--color-muted);
  font-family: var(--font-mono);
  font-size: 9px;
  line-height: 1.5;
}

.button.is-confirming {
  border-color: var(--color-accent);
  color: var(--color-accent);
}

/* ===== 05. 伪装代码编辑器 ===== */
.boss-screen {
  position: fixed;
  z-index: 200;
  inset: 0;
  display: flex;
  overflow: hidden;
  flex-direction: column;
  background: var(--editor-bg);
  color: var(--editor-text);
  opacity: 0;
  visibility: hidden;
  transition:
    opacity 200ms var(--ease),
    visibility 0s linear 200ms;
  outline: none;
}

.boss-screen.is-open {
  opacity: 1;
  visibility: visible;
  transition: opacity 200ms var(--ease);
}

.boss-titlebar {
  display: flex;
  min-height: 46px;
  padding: 0 16px;
  align-items: stretch;
  gap: 18px;
  border-bottom: 1px solid var(--editor-line);
  color: var(--editor-muted);
  font-family: var(--font-mono);
  font-size: 11px;
}

.window-marks {
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

.window-marks i {
  width: 7px;
  height: 7px;
  border: 1px solid rgba(229, 229, 224, 0.32);
  border-radius: 50%;
}

.boss-tabs {
  display: flex;
  align-items: stretch;
}

.boss-tab {
  display: inline-flex;
  padding: 0 14px;
  align-items: center;
  border-right: 1px solid var(--editor-line);
  color: var(--editor-muted);
  letter-spacing: 0.02em;
}

.boss-tab:first-child {
  border-left: 1px solid var(--editor-line);
}

.boss-tab.is-active {
  position: relative;
  background: var(--editor-panel);
  color: var(--editor-text);
}

.boss-tab.is-active::after {
  content: "";
  position: absolute;
  top: 0;
  right: 0;
  left: 0;
  height: 1px;
  background: var(--editor-accent);
}

.boss-branch {
  margin-left: auto;
  align-self: center;
  color: var(--editor-muted);
  font-size: 10px;
}

.boss-body {
  flex: 1 1 auto;
  overflow: auto;
  padding: 30px 0 48px;
}

.code-lines {
  counter-reset: line;
  min-width: max-content;
  margin: 0;
  padding: 0 24px 0 66px;
  list-style: none;
  font-family: var(--font-mono);
  font-size: 13px;
  line-height: 1.85;
  tab-size: 2;
}

.code-lines li {
  position: relative;
  padding-right: 28px;
  white-space: pre;
}

.code-lines li::before {
  counter-increment: line;
  content: counter(line);
  position: absolute;
  left: -42px;
  width: 25px;
  color: rgba(154, 161, 169, 0.56);
  text-align: right;
  font-variant-numeric: tabular-nums;
}

.code-lines code {
  font-family: inherit;
}

.tok-key,
.tok-fn {
  color: var(--editor-accent);
}

.tok-str {
  color: #DFC0AF;
}

.tok-num {
  color: var(--editor-warm);
}

.tok-comment {
  color: var(--editor-muted);
  font-style: italic;
}

.boss-alert {
  position: absolute;
  right: 0;
  bottom: 54px;
  left: 0;
  color: var(--editor-warm);
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.12em;
  line-height: 1.7;
  text-align: center;
  opacity: 0;
  transform: translateY(4px);
  transition:
    opacity 280ms var(--ease),
    transform 280ms var(--ease);
}

.boss-alert.is-visible {
  opacity: 1;
  transform: translateY(0);
}

.boss-statusbar {
  display: flex;
  min-height: 34px;
  padding: 0 16px;
  flex: 0 0 auto;
  align-items: center;
  justify-content: flex-end;
  gap: 16px;
  border-top: 1px solid var(--editor-line);
  color: var(--editor-muted);
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.02em;
}

.boss-status-spacer {
  color: rgba(154, 161, 169, 0.7);
}

.boss-exit {
  display: inline-flex;
  min-height: 28px;
  margin-left: auto;
  padding: 0 4px;
  align-items: center;
  gap: 6px;
  border: 0;
  background: transparent;
  color: var(--editor-muted);
  font-family: var(--font-mono);
  font-size: 10px;
  line-height: 1.4;
  cursor: pointer;
  transition: color 200ms var(--ease);
}

.boss-exit:hover {
  color: var(--editor-text);
}

.boss-exit kbd {
  padding: 1px 5px;
  border: 1px solid var(--editor-line);
  border-radius: 2px;
  font-family: inherit;
  font-size: 9px;
}

.boss-exit:focus-visible {
  outline-color: var(--editor-accent);
}

.noscript-note {
  max-width: 560px;
  margin: 0 auto;
  padding: 24px var(--gutter) 48px;
  color: var(--color-muted);
  font-size: 12px;
  line-height: 1.8;
  text-align: center;
}

/* ===== 06. 响应式 ===== */
@media (max-width: 680px) {
  .pond-main {
    padding-top: 38px;
  }

  .pond-head {
    margin-bottom: 22px;
    gap: 18px;
  }

  .score-value {
    font-size: clamp(32px, 10vw, 42px);
  }

  .pond-footer {
    padding-top: 15px;
    flex-direction: column;
    align-items: stretch;
    gap: 13px;
  }

  .instruction {
    font-size: 11px;
  }

  .pond-actions {
    width: 100%;
  }

  .pond-actions .button {
    flex: 1 1 0;
    padding-inline: 10px;
  }

  .notice-line {
    min-height: 29px;
    font-size: 11px;
  }
}

@media (max-width: 560px) {
  body {
    font-size: 15px;
  }

  .brand {
    font-size: 16px;
  }

  .daily-status {
    gap: 7px;
    font-size: 10px;
  }

  .daily-status time {
    font-size: 12px;
  }

  .eyebrow {
    max-width: 23em;
    font-size: 9px;
    line-height: 1.9;
  }

  .score-label {
    font-size: 9px;
  }

  .boss-titlebar {
    min-height: 42px;
    padding: 0 12px;
    gap: 12px;
    font-size: 10px;
  }

  .window-marks {
    display: none;
  }

  .boss-tab {
    padding-inline: 10px;
  }

  .boss-branch {
    display: none;
  }

  .boss-body {
    padding-top: 22px;
  }

  .code-lines {
    padding: 0 18px 0 52px;
    font-size: 11px;
    line-height: 1.9;
  }

  .code-lines li {
    padding-right: 16px;
  }

  .code-lines li::before {
    left: -32px;
    width: 19px;
  }

  .boss-statusbar {
    padding: 0 12px;
    gap: 10px;
  }

  .boss-statusbar > span:nth-child(2),
  .boss-statusbar > span:nth-child(3) {
    display: none;
  }

  .boss-alert {
    bottom: 48px;
    font-size: 11px;
  }
}

@media (max-width: 380px) {
  .site-header {
    padding-top: 20px;
  }

  .brand {
    letter-spacing: 0.13em;
  }

  .pond-actions {
    gap: 6px;
  }

  .button {
    font-size: 11px;
  }

  .instruction::before {
    width: 12px;
  }
}

/* ===== 07. 减少动态效果 ===== */
@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    scroll-behavior: auto !important;
    animation-duration: 0.01ms !important;
    animation-delay: 0ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }

  .notice-line,
  .boss-alert {
    transition: none;
  }
}

/* ===== 08. 小游戏导航与更多游戏 ===== */
.game-nav {
  display: flex;
  flex-wrap: wrap;
  column-gap: clamp(18px, 3.2vw, 34px);
  row-gap: 0;
  padding-top: 12px;
  overflow-x: auto;
  scrollbar-width: none;
}

.game-nav::-webkit-scrollbar {
  display: none;
}

.game-nav a {
  position: relative;
  display: inline-flex;
  padding: 7px 0 9px;
  flex: 0 0 auto;
  color: var(--color-muted);
  font-size: 12px;
  letter-spacing: 0.06em;
  line-height: 1.5;
  text-decoration: none;
  white-space: nowrap;
  transition: color 220ms var(--ease);
}

.game-nav a::after {
  content: "";
  position: absolute;
  right: 0;
  bottom: 4px;
  left: 0;
  height: 1px;
  background: currentColor;
  transform: scaleX(0);
  transform-origin: left center;
  transition: transform var(--duration) var(--ease);
}

.game-nav a:hover,
.game-nav a[aria-current="page"] {
  color: var(--color-text);
}

.game-nav a:hover::after,
.game-nav a:focus-visible::after,
.game-nav a[aria-current="page"]::after {
  transform: scaleX(1);
}

.more-games {
  margin-top: clamp(64px, 9vw, 96px);
  padding-top: clamp(36px, 5vw, 48px);
  border-top: 1px solid var(--color-line);
}

.more-games-head {
  margin-bottom: 26px;
}

.more-games-title {
  margin-top: 8px;
  font-family: var(--font-serif);
  font-size: clamp(21px, 3vw, 28px);
  font-weight: 600;
  letter-spacing: 0.01em;
  line-height: 1.5;
}

.more-games-list {
  border-top: 1px solid var(--color-line);
}

.more-game {
  display: grid;
  padding: 20px 0;
  border-bottom: 1px solid var(--color-line);
  grid-template-columns: 38px minmax(0, 1fr) 22px;
  gap: 18px;
  align-items: center;
  color: var(--color-text);
  text-decoration: none;
}

.more-game-index {
  color: var(--color-accent);
  font-size: 11px;
  letter-spacing: 0.1em;
  line-height: 1.6;
  font-variant-numeric: tabular-nums;
}

.more-game-copy {
  display: flex;
  align-items: baseline;
  flex-wrap: wrap;
  gap: 6px 26px;
}

.more-game-name {
  font-family: var(--font-serif);
  font-size: 20px;
  font-weight: 600;
  line-height: 1.5;
  transition: color 220ms var(--ease);
}

.more-game-desc {
  color: var(--color-muted);
  font-size: 12px;
  letter-spacing: 0.02em;
  line-height: 1.8;
}

.more-game-arrow {
  color: var(--color-muted);
  font-size: 14px;
  line-height: 1;
  transition:
    color 220ms var(--ease),
    transform var(--duration) var(--ease);
}

.more-game:hover .more-game-name,
.more-game:focus-visible .more-game-name {
  color: var(--color-accent);
}

.more-game:hover .more-game-arrow,
.more-game:focus-visible .more-game-arrow {
  color: var(--color-accent);
  transform: translateX(4px);
}

/* ===== 09. 扩展小游戏通用组件 ===== */
.game-canvas {
  width: 100%;
  height: 100%;
  touch-action: none;
  user-select: none;
  -webkit-user-select: none;
  -webkit-tap-highlight-color: transparent;
}

#stone-canvas,
#bubble-canvas,
#jump-canvas,
#tap-canvas,
#stack-canvas {
  cursor: pointer;
}

#count-canvas {
  cursor: default;
}

.game-canvas:focus-visible {
  outline: 2px solid var(--color-accent);
  outline-offset: -4px;
}

.status-number {
  color: var(--color-text);
  font-variant-numeric: tabular-nums;
}

.game-overlay {
  position: absolute;
  z-index: 2;
  inset: 0;
  display: flex;
  padding: clamp(18px, 4vw, 32px);
  flex-direction: column;
  align-items: center;
  justify-content: center;
  overflow-y: auto;
  background: rgba(250, 250, 247, 0.94);
  text-align: center;
}

.overlay-kicker {
  color: var(--color-accent);
  font-size: 10px;
  letter-spacing: 0.16em;
  line-height: 1.7;
}

.overlay-title {
  margin-top: 9px;
  font-family: var(--font-serif);
  font-size: clamp(23px, 3.8vw, 32px);
  font-weight: 600;
  line-height: 1.45;
}

.overlay-text {
  max-width: 34em;
  margin-top: 9px;
  color: var(--color-muted);
  font-size: 12px;
  line-height: 1.8;
}

.overlay-actions {
  display: flex;
  margin-top: 20px;
  flex-wrap: wrap;
  align-items: center;
  justify-content: center;
  gap: 8px;
}

.overlay-result {
  display: flex;
  margin-top: 16px;
  flex-wrap: wrap;
  align-items: baseline;
  justify-content: center;
  gap: 8px 22px;
  color: var(--color-muted);
  font-size: 12px;
  line-height: 1.8;
}

.overlay-result strong {
  color: var(--color-number);
  font-family: var(--font-serif);
  font-size: 24px;
  font-weight: 600;
  font-variant-numeric: tabular-nums;
}

.button-primary {
  border-color: var(--color-text);
  background: var(--color-text);
  color: var(--color-bg);
}

.button-primary:hover:not(:disabled) {
  border-color: var(--color-accent);
  background: var(--color-accent);
  color: #FFFFFF;
}

.button:disabled {
  opacity: 0.34;
  cursor: not-allowed;
}

.stage-badge {
  position: absolute;
  z-index: 1;
  top: 14px;
  left: 14px;
  padding: 4px 8px;
  border: 1px solid var(--color-line);
  border-radius: 2px;
  background: rgba(250, 250, 247, 0.9);
  color: var(--color-muted);
  font-size: 10px;
  letter-spacing: 0.06em;
  line-height: 1.6;
  pointer-events: none;
  white-space: nowrap;
}

.stage-badge strong {
  color: var(--color-text);
  font-weight: 500;
  font-variant-numeric: tabular-nums;
}

.badge-sep {
  padding-inline: 4px;
  opacity: 0.46;
}

.answer-grid {
  display: flex;
  margin-top: 18px;
  flex-wrap: wrap;
  align-items: center;
  justify-content: center;
  gap: 8px;
}

.answer-button {
  min-width: 54px;
  min-height: 44px;
  padding: 6px 14px;
  border: 1px solid var(--color-line);
  border-radius: 2px;
  background: transparent;
  color: var(--color-text);
  font-family: var(--font-serif);
  font-size: 20px;
  line-height: 1.3;
  cursor: pointer;
  transition:
    color 220ms var(--ease),
    border-color 220ms var(--ease),
    background-color 220ms var(--ease);
}

.answer-button:hover {
  border-color: var(--color-accent);
  color: var(--color-accent);
}

.answer-button:disabled {
  cursor: default;
  opacity: 0.45;
}

.answer-button.is-correct {
  border-color: var(--color-accent);
  background: rgba(43, 110, 143, 0.06);
  color: var(--color-accent);
  opacity: 1;
}

.answer-button.is-wrong {
  border-color: var(--color-line);
  color: var(--color-muted);
  text-decoration: line-through;
  opacity: 1;
}

@media (max-width: 680px) {
  .more-game {
    grid-template-columns: 28px minmax(0, 1fr) 18px;
    gap: 12px;
  }

  .more-game-copy {
    display: block;
  }

  .more-game-desc {
    display: block;
    margin-top: 2px;
    font-size: 11px;
  }

  .overlay-text {
    font-size: 11px;
  }
}

@media (max-width: 560px) {
  .game-nav {
    column-gap: 18px;
    padding-top: 8px;
  }

  .game-nav a {
    font-size: 11px;
  }

  .game-overlay {
    padding: 15px;
  }

  .overlay-title {
    font-size: 22px;
  }

  .overlay-text {
    display: none;
  }

  .overlay-actions {
    margin-top: 14px;
  }

  .stage-badge {
    top: 10px;
    left: 10px;
    font-size: 9px;
  }

  .more-games {
    margin-top: 52px;
    padding-top: 30px;
  }

  .more-game-name {
    font-size: 18px;
  }
}