/* ============================================================
   赛博电子鸭 · CYBER DUCK  —  mrunx.com
   零依赖视觉系统
   ============================================================ */

:root{
  --bg:      #07090f;
  --bg-2:    #0b0f1a;
  --panel:   rgba(13,19,32,.72);
  --line:    rgba(34,211,238,.20);
  --line-2:  rgba(255,255,255,.07);

  --cyan:    #22d3ee;
  --pink:    #f472b6;
  --yellow:  #ffd23f;
  --orange:  #ff8c42;
  --red:     #ff4d5e;

  --txt:     #e7edf7;
  --txt-dim: rgba(231,237,247,.52);
  --txt-mute:rgba(231,237,247,.32);

  --mono: ui-monospace, SFMono-Regular, "SF Mono", Menlo, Consolas,
          "Liberation Mono", monospace;
  --sans: -apple-system, BlinkMacSystemFont, "PingFang SC", "Hiragino Sans GB",
          "Microsoft YaHei", "Segoe UI", Roboto, sans-serif;

  --r: 14px;
  --safe-b: env(safe-area-inset-bottom, 0px);
  --safe-t: env(safe-area-inset-top, 0px);
}

*{ box-sizing:border-box; }

html,body{
  margin:0; padding:0;
  height:100%;
  background:var(--bg);
  color:var(--txt);
  font-family:var(--sans);
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}

body{
  overflow:hidden;
  overscroll-behavior:none;
  -webkit-tap-highlight-color:transparent;
  user-select:none;
  -webkit-user-select:none;
}

#app{
  position:relative;
  height:100vh;
  height:100dvh;
  display:flex;
  flex-direction:column;
  overflow:hidden;
}

/* ---------- HUD 通用 ---------- */
.hud{
  position:relative;
  z-index:20;
  pointer-events:none;
}
.hud > *{ pointer-events:auto; }

/* ---------- 顶栏 ---------- */
.hud-top{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:12px;
  padding: calc(12px + var(--safe-t)) 16px 10px;
}

.brand{
  display:flex;
  align-items:center;
  gap:9px;
  min-width:0;
}
.brand-dot{
  width:9px; height:9px;
  flex:0 0 auto;
  border-radius:50%;
  background:var(--cyan);
  box-shadow:0 0 10px var(--cyan), 0 0 22px rgba(34,211,238,.55);
  animation:pulse 2.4s ease-in-out infinite;
}
@keyframes pulse{
  0%,100%{ opacity:1; transform:scale(1); }
  50%    { opacity:.45; transform:scale(.78); }
}
.brand-name{
  font-family:var(--mono);
  font-size:13px;
  font-weight:700;
  letter-spacing:.20em;
  color:var(--cyan);
  text-shadow:0 0 14px rgba(34,211,238,.5);
  word-break:keep-all;
}
.brand-sub{
  font-size:11px;
  letter-spacing:.28em;
  color:var(--txt-mute);
  padding-left:9px;
  border-left:1px solid var(--line-2);
  white-space:nowrap;
}

.top-actions{ display:flex; gap:8px; flex:0 0 auto; }

.icon-btn{
  width:34px; height:34px;
  display:grid; place-items:center;
  border-radius:10px;
  border:1px solid var(--line);
  background:var(--panel);
  color:var(--cyan);
  font-family:var(--mono);
  font-size:14px;
  cursor:pointer;
  backdrop-filter:blur(10px);
  -webkit-backdrop-filter:blur(10px);
  transition:background .16s, border-color .16s, transform .12s;
}
.icon-btn:hover{ background:rgba(34,211,238,.12); border-color:rgba(34,211,238,.45); }
.icon-btn:active{ transform:scale(.92); }
#soundBtn .ico-off{ display:none; }
#soundBtn[aria-pressed="false"] .ico-on{ display:none; }
#soundBtn[aria-pressed="false"] .ico-off{ display:inline; color:var(--txt-mute); }

/* ---------- 舞台 ---------- */
#stage{
  position:relative;
  flex:1 1 auto;
  min-height:0;
  overflow:hidden;
}

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

/* 扫描线 */
.scanlines{
  position:absolute; inset:0;
  pointer-events:none;
  background:repeating-linear-gradient(
    to bottom,
    rgba(255,255,255,.028) 0px,
    rgba(255,255,255,.028) 1px,
    transparent 1px,
    transparent 3px
  );
  mix-blend-mode:overlay;
  animation:scanmove 9s linear infinite;
}
@keyframes scanmove{ from{ background-position-y:0; } to{ background-position-y:120px; } }

/* 暗角 */
.vignette{
  position:absolute; inset:0;
  pointer-events:none;
  background:radial-gradient(ellipse at 50% 62%, transparent 38%, rgba(0,0,0,.62) 100%);
}

/* 过载闪光 */
.flash{
  position:absolute; inset:0;
  pointer-events:none;
  opacity:0;
  box-shadow:inset 0 0 90px 12px rgba(255,77,94,.85);
  transition:opacity .18s;
}
.flash.on{ opacity:1; animation:flashflick .38s steps(2,end) infinite; }
@keyframes flashflick{ 0%{ opacity:.55; } 100%{ opacity:.10; } }

/* 气泡 */
.bubble{
  position:absolute;
  z-index:15;
  max-width:min(74vw, 320px);
  padding:9px 13px;
  border-radius:12px;
  border:1px solid rgba(34,211,238,.32);
  background:rgba(8,14,24,.90);
  color:var(--txt);
  font-size:13.5px;
  line-height:1.5;
  letter-spacing:.02em;
  backdrop-filter:blur(8px);
  -webkit-backdrop-filter:blur(8px);
  box-shadow:0 8px 30px rgba(0,0,0,.5), 0 0 0 1px rgba(255,255,255,.03) inset;
  opacity:0;
  transform:translate(-50%,6px) scale(.96);
  transition:opacity .2s, transform .2s cubic-bezier(.2,1.3,.4,1);
  pointer-events:none;
  overflow-wrap:break-word;
}
.bubble.show{ opacity:1; transform:translate(-50%,0) scale(1); }
.bubble::after{
  content:"";
  position:absolute;
  left:50%; bottom:-6px;
  width:10px; height:10px;
  transform:translateX(-50%) rotate(45deg);
  background:rgba(8,14,24,.90);
  border-right:1px solid rgba(34,211,238,.32);
  border-bottom:1px solid rgba(34,211,238,.32);
}
.bubble.warm{ border-color:rgba(244,114,182,.42); }
.bubble.warm::after{ border-color:rgba(244,114,182,.42); }
.bubble.alarm{ border-color:rgba(255,77,94,.5); }
.bubble.alarm::after{ border-color:rgba(255,77,94,.5); }

/* 提示 */
.hint{
  position:absolute;
  left:50%; bottom:14px;
  transform:translateX(-50%);
  font-family:var(--mono);
  font-size:11px;
  letter-spacing:.14em;
  color:var(--txt-mute);
  white-space:nowrap;
  pointer-events:none;
  transition:opacity .8s;
}
.hint.hide{ opacity:0; }

/* ---------- 底栏面板 ---------- */
.hud-bottom{
  padding:10px 16px calc(12px + var(--safe-b));
  background:linear-gradient(to top, rgba(7,9,15,.96) 30%, rgba(7,9,15,0));
}

.panel{
  border:1px solid var(--line);
  border-radius:var(--r);
  background:var(--panel);
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
  padding:12px 14px 13px;
  box-shadow:0 -2px 40px rgba(0,0,0,.5);
  max-width:760px;
  margin:0 auto;
}

.identity{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:10px;
  margin-bottom:11px;
}
.duck-name{
  font-family:var(--mono);
  font-size:12px;
  font-weight:700;
  letter-spacing:.18em;
  color:var(--yellow);
  text-shadow:0 0 12px rgba(255,210,63,.42);
}
.duck-lv{
  font-family:var(--mono);
  font-size:10.5px;
  letter-spacing:.14em;
  padding:3px 8px;
  border-radius:999px;
  border:1px solid rgba(244,114,182,.35);
  color:var(--pink);
  background:rgba(244,114,182,.08);
}

.stats{
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:10px 14px;
  margin-bottom:12px;
}
.stat-head{
  display:flex;
  align-items:baseline;
  justify-content:space-between;
  margin-bottom:5px;
}
.stat-label{
  font-size:11px;
  letter-spacing:.12em;
  color:var(--txt-dim);
}
.stat-val{
  font-family:var(--mono);
  font-size:11px;
  font-variant-numeric:tabular-nums;
  color:var(--txt-dim);
}
.bar{
  height:5px;
  border-radius:999px;
  background:rgba(255,255,255,.075);
  overflow:hidden;
}
.fill{
  display:block;
  height:100%;
  width:100%;
  border-radius:999px;
  transition:width .5s cubic-bezier(.3,1,.4,1), background .4s;
  transform-origin:left center;
}
.fill.mood   { background:linear-gradient(90deg,#f472b6,#ff8ccf); box-shadow:0 0 12px rgba(244,114,182,.6); }
.fill.satiety{ background:linear-gradient(90deg,#ffd23f,#ff8c42); box-shadow:0 0 12px rgba(255,140,66,.6); }
.fill.energy { background:linear-gradient(90deg,#22d3ee,#5eead4); box-shadow:0 0 12px rgba(34,211,238,.6); }
.fill.low    { background:linear-gradient(90deg,#ff4d5e,#ff7a86) !important; box-shadow:0 0 12px rgba(255,77,94,.65) !important; }

.actions{
  display:grid;
  grid-template-columns:1fr 1fr auto;
  gap:9px;
}
.act{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:7px;
  min-height:42px;
  padding:0 14px;
  border-radius:11px;
  border:1px solid rgba(34,211,238,.30);
  background:rgba(34,211,238,.09);
  color:var(--cyan);
  font-family:var(--sans);
  font-size:13.5px;
  font-weight:600;
  letter-spacing:.06em;
  cursor:pointer;
  transition:background .16s, transform .1s, border-color .16s, box-shadow .16s;
}
.act:hover{ background:rgba(34,211,238,.18); border-color:rgba(34,211,238,.6); box-shadow:0 0 22px rgba(34,211,238,.18); }
.act:active{ transform:scale(.96); }
.act-ico{ font-size:15px; line-height:1; }

.act-pet{
  border-color:rgba(244,114,182,.30);
  background:rgba(244,114,182,.09);
  color:var(--pink);
}
.act-pet:hover{ background:rgba(244,114,182,.18); border-color:rgba(244,114,182,.6); box-shadow:0 0 22px rgba(244,114,182,.18); }

.act-reset{
  padding:0 13px;
  border-color:var(--line-2);
  background:rgba(255,255,255,.04);
  color:var(--txt-mute);
}
.act-reset:hover{ background:rgba(255,255,255,.08); border-color:rgba(255,255,255,.16); color:var(--txt-dim); box-shadow:none; }

.footnote{
  max-width:760px;
  margin:9px auto 0;
  text-align:center;
  font-size:10.5px;
  letter-spacing:.05em;
  color:var(--txt-mute);
  line-height:1.6;
}
.footnote em{ font-style:normal; color:rgba(34,211,238,.7); }

/* ---------- 关于弹窗 ---------- */
.modal{
  position:fixed;
  inset:0;
  z-index:60;
  display:grid;
  place-items:center;
  padding:22px;
  background:rgba(4,6,10,.76);
  backdrop-filter:blur(6px);
  -webkit-backdrop-filter:blur(6px);
  animation:fadein .18s ease-out;
}
.modal[hidden]{ display:none; }
@keyframes fadein{ from{ opacity:0; } to{ opacity:1; } }

.modal-card{
  width:min(430px,100%);
  max-height:82vh;
  overflow:auto;
  padding:22px 22px 18px;
  border-radius:16px;
  border:1px solid rgba(34,211,238,.3);
  background:linear-gradient(160deg, #0d1524, #0a0f1a);
  box-shadow:0 26px 70px rgba(0,0,0,.72), 0 0 0 1px rgba(255,255,255,.03) inset;
}
.modal-card h2{
  margin:0 0 12px;
  font-family:var(--mono);
  font-size:14px;
  letter-spacing:.2em;
  color:var(--cyan);
  text-shadow:0 0 14px rgba(34,211,238,.4);
}
.modal-card p{
  margin:0 0 12px;
  font-size:13.5px;
  line-height:1.7;
  color:var(--txt-dim);
}
.modal-card b{ color:var(--txt); }
.modal-card code{
  font-family:var(--mono);
  font-size:12.5px;
  padding:1px 6px;
  border-radius:5px;
  background:rgba(34,211,238,.11);
  color:var(--cyan);
}
.modal-card ul{
  margin:0 0 12px;
  padding-left:0;
  list-style:none;
}
.modal-card li{
  position:relative;
  padding:5px 0 5px 17px;
  font-size:13px;
  line-height:1.6;
  color:var(--txt-dim);
}
.modal-card li::before{
  content:"▸";
  position:absolute;
  left:0; top:5px;
  color:var(--cyan);
  font-size:11px;
}
.modal-note{
  font-size:11.5px !important;
  color:var(--txt-mute) !important;
  border-top:1px solid var(--line-2);
  padding-top:12px;
}
.modal-card .act{ width:100%; margin-top:6px; }

/* ---------- 响应式 ---------- */
@media (max-width:520px){
  .hud-top{ padding-left:12px; padding-right:12px; }
  .brand-sub{ display:none; }
  .brand-name{ font-size:12px; letter-spacing:.14em; }
  .hud-bottom{ padding-left:11px; padding-right:11px; }
  .panel{ padding:11px 11px 12px; }
  .stats{ gap:8px 10px; }
  .stat-label{ font-size:10px; letter-spacing:.06em; }
  .stat-val{ font-size:10px; }
  .actions{ grid-template-columns:1fr 1fr 46px; gap:7px; }
  .act{ padding:0 8px; font-size:12.5px; gap:5px; }
  .act-reset .act-txt{ display:none; }
  .act-reset{ padding:0; }
  .footnote{ font-size:9.5px; }
  .hint{ font-size:9.5px; letter-spacing:.1em; }
}

@media (max-height:600px){
  .footnote{ display:none; }
  .panel{ padding:9px 11px 10px; }
  .identity{ margin-bottom:8px; }
  .stats{ margin-bottom:9px; }
}

/* 竖屏超长屏：把舞台留得更舒服 */
@media (min-aspect-ratio:1/1) and (min-width:900px){
  .panel{ max-width:700px; }
}

/* ---------- 无障碍 / 降级 ---------- */
@media (prefers-reduced-motion:reduce){
  .scanlines{ animation:none; }
  .brand-dot{ animation:none; }
  .flash.on{ animation:none; opacity:.5; }
  .fill{ transition:none; }
  .bubble{ transition:opacity .12s; }
}

:focus-visible{
  outline:2px solid var(--cyan);
  outline-offset:2px;
  border-radius:8px;
}