/* ===== 竹知了 · 3D 蝉鸣模拟器 ===== */
:root {
  --ink: #3f3a2e;
  --ink-soft: #6b6148;
  --paper: rgba(255, 252, 240, 0.86);
  --paper-line: #e6d9b6;
  --accent: #8a6d3b;
  --green: #3f8f4f;
  --red: #c94f2f;
  --gold: #d8a522;
  --radius: 14px;
}

* { margin: 0; padding: 0; box-sizing: border-box; }

html, body {
  height: 100%;
  overflow: hidden;
  font-family: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", system-ui, -apple-system, sans-serif;
  color: var(--ink);
  -webkit-user-select: none;
  user-select: none;
  -webkit-tap-highlight-color: transparent;
  overscroll-behavior: none;
}

#app { position: fixed; inset: 0; }

/* 天空渐变背景（画布透明，透出此背景） */
body {
  background:
    radial-gradient(120% 90% at 50% 8%, #cfe7d8 0%, #dde9cf 38%, #f2e8cf 68%, #eedfc0 100%);
}

#gl {
  position: absolute; inset: 0;
  width: 100%; height: 100%;
  display: block;
  touch-action: none;
  cursor: grab;
}
#gl.rubbing { cursor: grabbing; }

/* ===== HUD 网格 ===== */
#hud {
  position: fixed; inset: 0;
  display: grid;
  grid-template-columns: auto 1fr auto;
  grid-template-rows: auto 1fr auto;
  gap: 10px;
  padding:
    calc(10px + env(safe-area-inset-top, 0px))
    calc(12px + env(safe-area-inset-right, 0px))
    calc(10px + env(safe-area-inset-bottom, 0px))
    calc(12px + env(safe-area-inset-left, 0px));
  pointer-events: none;
  z-index: 10;
}

.card {
  background: var(--paper);
  border: 1px solid var(--paper-line);
  border-radius: var(--radius);
  box-shadow: 0 4px 18px rgba(90, 72, 34, 0.16);
  backdrop-filter: blur(7px);
  -webkit-backdrop-filter: blur(7px);
  pointer-events: auto;
}

/* ===== 顶栏 ===== */
#topbar {
  grid-column: 1 / 4;
  display: flex;
  align-items: flex-start;
  gap: 10px;
  flex-wrap: wrap;
}
#title { flex: 1 1 200px; min-width: 150px; }
#title h1 {
  font-size: 22px;
  letter-spacing: 2px;
  color: #35523c;
  text-shadow: 0 1px 0 rgba(255,255,255,.6);
  display: inline-block;
}
#title p { font-size: 11.5px; color: var(--ink-soft); margin-top: 2px; }

#scoreCard { padding: 8px 14px; text-align: right; }
.score-line { font-size: 15px; }
.score-line b { font-size: 22px; color: var(--red); font-variant-numeric: tabular-nums; }
#scoreCard .sub { font-size: 11px; color: var(--ink-soft); margin-top: 1px; }

#ctrlBtns { display: flex; gap: 8px; }
.icon-btn {
  width: 44px; height: 44px;
  font-size: 21px;
  border-radius: 50%;
  border: 1px solid var(--paper-line);
  background: var(--paper);
  box-shadow: 0 3px 10px rgba(90,72,34,.16);
  cursor: pointer;
  transition: transform .12s ease, filter .12s ease;
  backdrop-filter: blur(7px);
  display: grid; place-items: center;
  pointer-events: auto;   /* 恢复点击（#hud 整层为 pointer-events:none 让画布穿透） */
}
.icon-btn:active { transform: scale(.9); }
.icon-btn.on { background: #f3e2ae; border-color: #c9a94e; }
.icon-btn.off { filter: grayscale(.75) opacity(.8); }
.icon-btn.small { width: 34px; height: 34px; font-size: 17px; position: absolute; top: 8px; right: 8px; }

/* ===== 左栏 ===== */
#col-left { grid-column: 1; grid-row: 2; align-self: start; display: flex; flex-direction: column; gap: 10px; }
#cardMiles, #cardChal { padding: 10px 12px; }
#cardMiles h2, #cardChal h2 { font-size: 13px; color: var(--accent); margin-bottom: 6px; }

#milestones { list-style: none; display: flex; flex-direction: column; gap: 4px; }
#milestones li {
  font-size: 12px;
  padding: 3px 8px;
  border-radius: 9px;
  background: #efe7cf;
  color: #9b8e6a;
  display: flex; justify-content: space-between; gap: 10px;
  transition: all .25s ease;
}
#milestones li.done { background: #dcecd3; color: #3f6b46; }
#milestones li.now { background: #f6e3b3; color: #8a6416; font-weight: bold; }
#milestones li .b { font-variant-numeric: tabular-nums; }

.chal { margin-bottom: 7px; }
.chal:last-child { margin-bottom: 0; }
.chal .c-head { display: flex; justify-content: space-between; font-size: 12px; margin-bottom: 3px; }
.chal .c-head b { color: var(--accent); }
.chal .bar { height: 7px; border-radius: 4px; background: #e9dfc2; overflow: hidden; }
.chal .bar i {
  display: block; height: 100%; width: 0%;
  background: linear-gradient(90deg, #6fae4a, #e0b93e);
  border-radius: 4px;
  transition: width .18s linear;
}
.chal.done .c-head b { color: var(--green); }
.chal.done .bar i { background: var(--green); }
.chal .c-reward { font-size: 11px; color: var(--red); }

/* ===== 右栏 ===== */
#col-right { grid-column: 3; grid-row: 2; align-self: end; display: flex; flex-direction: column; gap: 10px; }
#handBox {
  position: relative;
  width: 168px; height: 126px;
  overflow: hidden;
  background: #20180e;
}
#handVideo { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; transform: scaleX(-1); }
#handCv { position: absolute; inset: 0; width: 100%; height: 100%; }
#handLabel {
  position: absolute; left: 6px; bottom: 4px;
  font-size: 10px; color: #fff; background: rgba(0,0,0,.45);
  padding: 1px 6px; border-radius: 7px;
}
.dot {
  position: absolute; top: 6px; right: 6px;
  width: 10px; height: 10px; border-radius: 50%;
  background: #888; box-shadow: 0 0 0 2px rgba(0,0,0,.35);
}
.dot.live { background: #5bd66f; animation: blink 1.2s infinite; }
.dot.load { background: #e0b93e; animation: blink .6s infinite; }
.dot.err { background: #e05b5b; }

/* ===== 底栏 ===== */
#bottombar {
  grid-column: 1 / 4; grid-row: 3;
  display: flex; align-items: flex-end; justify-content: center; gap: 10px;
  flex-wrap: wrap;
}
#gaugeCard {
  display: flex; align-items: center; gap: 6px;
  padding: 6px 14px 2px 6px;
}
#gauge { width: 200px; height: 120px; display: block; }
.g-label { font-size: 10px; fill: var(--ink-soft); }
/* 表针角度由 JS 写 transform 属性，不能用 CSS transform 覆盖 */
#gaugeText { text-align: center; min-width: 88px; }
#rpmVal { font-size: 34px; font-weight: 800; color: #4a3c20; line-height: 1; font-variant-numeric: tabular-nums; }
#gaugeText .unit { font-size: 11px; color: var(--ink-soft); letter-spacing: 3px; }
#hzVal { font-size: 11px; color: var(--accent); margin-top: 3px; }
#fft { width: 76px; height: 64px; display: block; border-radius: 8px; background: rgba(90,72,34,.07); }

#combo { padding: 8px 14px; font-size: 13px; white-space: nowrap; }
#combo b { color: var(--red); font-size: 15px; font-variant-numeric: tabular-nums; }
#combo #mult {
  display: inline-block; margin-left: 4px;
  background: var(--red); color: #fff;
  border-radius: 9px; padding: 0 7px; font-weight: bold;
}

.chip {
  border: 1px solid var(--paper-line);
  background: var(--paper);
  color: var(--ink);
  border-radius: 20px;
  padding: 9px 14px;
  font-size: 12.5px;
  cursor: pointer;
  box-shadow: 0 3px 10px rgba(90,72,34,.14);
  pointer-events: auto;
  backdrop-filter: blur(7px);
  transition: transform .12s ease;
}
.chip:active { transform: scale(.94); }
.chip.view { background: #dcecd3; border-color: #9dbd8f; }

/* ===== 提示 ===== */
#hint {
  position: fixed; inset: 0;
  display: grid; place-items: center;
  pointer-events: none;
  z-index: 9;
  transition: opacity .6s ease;
}
#hint.fade { opacity: 0; }
.hint-card {
  text-align: center;
  background: var(--paper);
  border: 1px solid var(--paper-line);
  border-radius: 18px;
  padding: 18px 26px;
  font-size: 16px;
  box-shadow: 0 6px 26px rgba(90,72,34,.2);
  max-width: 88vw;
}
.hint-card .hand { font-size: 44px; animation: wave 1s ease-in-out infinite; }
.hint-card b { color: var(--red); }
.hint-sub { font-size: 12px; color: var(--ink-soft); margin-top: 8px; }

/* ===== Toast / 特效 ===== */
#toasts {
  position: fixed; top: 74px; left: 0; right: 0;
  display: flex; flex-direction: column; align-items: center; gap: 8px;
  pointer-events: none; z-index: 30;
}
.toast {
  background: rgba(64, 52, 28, 0.92);
  color: #f7efd8;
  border-radius: 20px;
  padding: 8px 18px;
  font-size: 14px;
  box-shadow: 0 4px 16px rgba(0,0,0,.3);
  animation: toastIn .3s ease, toastOut .5s ease 2.1s forwards;
}
.toast.big { font-size: 17px; padding: 12px 24px; background: linear-gradient(135deg, #b0762c, #8a5a1c); }

#flash {
  position: fixed; inset: 0; z-index: 20; pointer-events: none;
  background: radial-gradient(circle at 50% 45%, rgba(255, 232, 160, 0.85), rgba(255, 214, 90, 0) 65%);
  animation: flashFade .7s ease forwards;
}

#confetti { position: fixed; inset: 0; pointer-events: none; z-index: 25; overflow: hidden; }
.conf {
  position: absolute; top: -16px;
  width: 9px; height: 14px;
  border-radius: 2px;
  animation: confFall var(--dur, 1.2s) ease-in var(--delay, 0s) forwards;
}

/* ===== 错误条 ===== */
#errbox {
  position: fixed; top: 0; left: 0; right: 0; z-index: 99;
  background: #a33; color: #fff;
  font-size: 12px; padding: 8px 12px;
}

/* ===== 弹窗 ===== */
.modal {
  position: fixed; inset: 0; z-index: 40;
  background: rgba(40, 32, 16, 0.5);
  display: grid; place-items: center;
  padding: 14px;
}
.modal-card {
  position: relative;
  background: #fdf8ea;
  border: 1px solid var(--paper-line);
  border-radius: 18px;
  max-width: 620px; width: 100%;
  max-height: 86vh;
  overflow-y: auto;
  padding: 22px 26px;
  box-shadow: 0 12px 40px rgba(0,0,0,.35);
  -webkit-overflow-scrolling: touch;
}
.modal-card h1 { font-size: 20px; margin-bottom: 8px; color: #35523c; }
.modal-card section { margin: 12px 0 4px; }
.modal-card h2 { font-size: 14.5px; color: var(--accent); margin-bottom: 5px; }
.modal-card p { font-size: 13px; line-height: 1.75; }
.modal-card p.foot { font-size: 11px; color: var(--ink-soft); margin-top: 12px; }
.how { list-style: none; }
.how li { font-size: 13px; line-height: 1.7; padding: 3px 0 3px 4px; }
kbd {
  background: #efe7cf; border: 1px solid #cdbb8e; border-bottom-width: 2px;
  border-radius: 5px; padding: 0 5px; font-size: 11.5px; font-family: inherit;
}
#diagram { width: 100%; max-width: 340px; margin: 4px auto; display: block; }
.dg { font-size: 9px; fill: var(--ink-soft); }
.primary {
  display: block; margin: 14px auto 0;
  background: linear-gradient(135deg, #4d8f57, #3c7a49);
  color: #fff; border: none;
  border-radius: 24px;
  padding: 11px 34px;
  font-size: 15px; cursor: pointer;
  box-shadow: 0 4px 14px rgba(61, 122, 73, .4);
}
.primary:active { transform: scale(.96); }

.hidden { display: none !important; }

/* ===== 动画 ===== */
@keyframes wave { 0%,100% { transform: translateX(-8px) rotate(-12deg);} 50% { transform: translateX(8px) rotate(12deg);} }
@keyframes blink { 0%,100% { opacity: 1;} 50% { opacity: .35;} }
@keyframes toastIn { from { opacity: 0; transform: translateY(-10px);} to { opacity: 1; transform: none;} }
@keyframes toastOut { to { opacity: 0; transform: translateY(-14px);} }
@keyframes flashFade { from { opacity: 1;} to { opacity: 0;} }
@keyframes confFall {
  0% { transform: translateY(0) rotate(0deg); opacity: 1; }
  100% { transform: translateY(var(--drop, 90vh)) rotate(var(--rot, 540deg)); opacity: .9; }
}

/* ===== 响应式 ===== */
@media (max-width: 900px) {
  #col-left {
    grid-column: 1 / 4; grid-row: 2;
    flex-direction: row;
    overflow-x: auto;
    max-width: 100%;
    padding-bottom: 2px;
  }
  #cardMiles { flex: 0 0 auto; }
  #cardChal { flex: 0 0 auto; width: 240px; }
  #milestones { flex-direction: row; flex-wrap: nowrap; gap: 4px; }
  #milestones li { white-space: nowrap; }
  #gauge { width: 158px; height: 95px; }
  #rpmVal { font-size: 26px; }
  #title h1 { font-size: 19px; }
  #handBox { width: 130px; height: 98px; }
}

@media (max-width: 520px), (max-height: 480px) {
  #title p, #scoreCard .sub { display: none; }
  #scoreCard { padding: 6px 10px; }
  .score-line b { font-size: 19px; }
  .icon-btn { width: 40px; height: 40px; font-size: 19px; }
  #cardMiles, #cardChal { padding: 7px 9px; }
  #gaugeText { min-width: 64px; }
  #rpmVal { font-size: 22px; }
  #fft { width: 56px; height: 48px; }
  #gaugeCard { padding: 4px 8px 2px 2px; }
  .chip { font-size: 11px; padding: 8px 11px; }
  #combo { padding: 6px 10px; font-size: 12px; }
}