/* css/style.css */
/* 《海市蜃楼》登州与蜃景 3D 交互世界 HUD 设计系统
   参考 mrdoob/slop-newyork 的极简磨砂玻璃四角布局，融入东方玄铁、鎏金与青冥色调 */

:root {
  /* Surfaces */
  --glass: rgba(14, 17, 23, 0.68);
  --glass-strong: rgba(12, 15, 20, 0.90);
  --glass-border: rgba(255, 255, 255, 0.11);
  --glass-highlight: rgba(255, 255, 255, 0.08);
  --grain: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='140' height='140'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.85' numOctaves='2' stitchTiles='stitch'/%3E%3CfeColorMatrix values='0 0 0 0 1 0 0 0 0 1 0 0 0 0 1 0 0 0 0.04 0'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
  --hover: rgba(255, 255, 255, 0.09);
  --divider: rgba(255, 255, 255, 0.11);

  /* Text */
  --text: #f5f2eb;
  --text-2: rgba(245, 242, 235, 0.72);
  --text-3: rgba(245, 242, 235, 0.46);

  /* Oriental & Mirage Accents */
  --accent: #e6b450;        /* 鎏金 (Imperial Gold) */
  --accent-ink: #161209;
  --mirage-cyan: #4deeea;   /* 蜃景青芒 (Mirage Cyan) */
  --plaque-red: #7c2522;    /* 登州朱漆牌匾 */
  --plaque-sky: #1b4f66;    /* 蜃景玄青牌匾 */
  --chain-iron: #c9974c;    /* 登云铁索金铜 */
  --ok: #5ee08f;
  --warn: #ffc857;
  --bad: #ff7a6b;

  /* Shape & motion */
  --edge: 20px;
  --bar-h: 50px;
  --r-panel: 16px;
  --r-ctl: 10px;
  --shadow: 0 18px 40px -18px rgba(0, 0, 0, 0.75), 0 2px 8px rgba(0, 0, 0, 0.25);
  --ease-out: cubic-bezier(0.22, 1, 0.36, 1);

  --font-sans: 'Inter', 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', sans-serif;
  --font-serif: 'Songti SC', 'Noto Serif SC', 'STSong', Georgia, serif;
}

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

html, body {
  width: 100%;
  height: 100%;
  overflow: hidden;
  background-color: #080a0f;
  color: var(--text);
  font-family: var(--font-sans);
  font-size: 14px;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  user-select: none;
  overscroll-behavior: none;
}

button {
  font: inherit;
  color: inherit;
  background: none;
  border: 0;
  cursor: pointer;
  -webkit-tap-highlight-color: transparent;
}

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

.icon-sprite {
  position: absolute;
  width: 0;
  height: 0;
  overflow: hidden;
}

.icon {
  width: 18px;
  height: 18px;
  flex: none;
  fill: none;
  stroke: currentColor;
  stroke-width: 1.75;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.icon-sm {
  width: 14px;
  height: 14px;
}

kbd {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  flex: none;
  min-width: 19px;
  height: 19px;
  padding: 0 5px;
  border-radius: 5px;
  font-family: var(--font-sans);
  font-size: 10.5px;
  font-weight: 650;
  line-height: 1;
  font-variant-numeric: tabular-nums;
  color: var(--text-2);
  background: rgba(255, 255, 255, 0.09);
  box-shadow: inset 0 0 0 1px rgba(255, 255, 255, 0.08), inset 0 -1px 0 rgba(0, 0, 0, 0.35);
}

#canvas-container {
  position: fixed;
  inset: 0;
  width: 100vw;
  height: 100vh;
  z-index: 1;
  cursor: grab;
}

#canvas-container:active {
  cursor: grabbing;
}

body::before,
body::after {
  content: '';
  position: fixed;
  left: 0;
  right: 0;
  z-index: 5;
  pointer-events: none;
  transition: opacity 0.35s ease;
}

body::before {
  top: 0;
  height: 120px;
  background: linear-gradient(to bottom, rgba(0, 0, 0, 0.28), rgba(0, 0, 0, 0));
}

body::after {
  bottom: 0;
  height: 210px;
  background: linear-gradient(to top, rgba(0, 0, 0, 0.42), rgba(0, 0, 0, 0));
}

/* ------------------------------------------------------------------------------------------------------------------
   Glass panel
   ------------------------------------------------------------------------------------------------------------------ */
.panel {
  background: var(--grain), var(--glass);
  -webkit-backdrop-filter: blur(22px) saturate(170%);
  backdrop-filter: blur(22px) saturate(170%);
  border: 1px solid var(--glass-border);
  border-radius: var(--r-panel);
  box-shadow: inset 0 1px 0 var(--glass-highlight), var(--shadow);
}

/* ------------------------------------------------------------------------------------------------------------------
   Loading screen
   ------------------------------------------------------------------------------------------------------------------ */
#loading-overlay {
  position: fixed;
  inset: 0;
  z-index: 100;
  display: grid;
  place-items: center;
  background: radial-gradient(110% 85% at 50% 35%, #16222f 0%, #0b1017 55%, #05070a 100%);
  transition: opacity 0.6s ease, visibility 0.6s ease;
}

#loading-overlay.hidden {
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
}

.loader {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  max-width: 420px;
  padding: 0 24px;
  animation: rise-in 0.8s var(--ease-out) both;
}

.mta-bullet {
  width: 32px;
  height: 32px;
  border-radius: 50%;
  background: linear-gradient(135deg, #f3c668, #c98f32);
  color: var(--accent-ink);
  font-family: var(--font-serif);
  font-weight: 900;
  font-size: 15px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  flex: none;
  box-shadow: inset 0 -1px 0 rgba(0, 0, 0, 0.25), 0 0 16px rgba(230, 180, 80, 0.35);
}

.mta-bullet.loader-bullet {
  width: 64px;
  height: 64px;
  margin-bottom: 20px;
  font-size: 28px;
}

.loader-title {
  font-family: var(--font-serif);
  font-size: 32px;
  font-weight: 700;
  letter-spacing: 0.06em;
  line-height: 1.15;
  color: #f8f4ea;
}

.loader-subtitle {
  margin-top: 8px;
  font-size: 13px;
  color: var(--text-2);
  letter-spacing: 0.04em;
}

.loader-track {
  position: relative;
  width: 260px;
  height: 3px;
  margin: 24px 0 14px;
  border-radius: 3px;
  background: rgba(255, 255, 255, 0.12);
  overflow: hidden;
}

.loader-fill {
  position: absolute;
  inset: 0;
  border-radius: inherit;
  background: linear-gradient(90deg, var(--accent), var(--mirage-cyan));
  transform-origin: left center;
  transform: scaleX(0);
  transition: transform 0.3s ease;
}

.loader-track.is-indeterminate .loader-fill {
  width: 38%;
  transform: translateX(-100%);
  transition: none;
  animation: loader-sweep 1.4s cubic-bezier(0.45, 0, 0.25, 1) infinite;
}

#loading-status {
  font-size: 12.5px;
  color: var(--text-3);
  font-variant-numeric: tabular-nums;
}

@keyframes loader-sweep {
  from { transform: translateX(-100%); }
  to { transform: translateX(280%); }
}

@keyframes rise-in {
  from { opacity: 0; transform: translateY(8px); }
  to { opacity: 1; transform: none; }
}

/* ------------------------------------------------------------------------------------------------------------------
   HUD layout
   ------------------------------------------------------------------------------------------------------------------ */
.hud {
  position: fixed;
  z-index: 10;
  pointer-events: none;
  transition: opacity 0.3s ease, transform 0.4s var(--ease-out);
}

.hud > * {
  pointer-events: auto;
}

.hud-top-left {
  top: max(var(--edge), env(safe-area-inset-top));
  left: max(var(--edge), env(safe-area-inset-left));
  display: flex;
  flex-direction: column;
  gap: 10px;
  align-items: flex-start;
}

.hud-top-right {
  top: var(--edge);
  right: var(--edge);
}

.hud-bottom-left {
  left: var(--edge);
  bottom: var(--edge);
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 10px;
}

.hud-bottom-center {
  left: 50%;
  bottom: var(--edge);
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 10px;
}

.hud-bottom-right {
  right: var(--edge);
  bottom: var(--edge);
}

/* Clean view [H] */
body.hud-minimized::before,
body.hud-minimized::after {
  opacity: 0;
}

body.hud-minimized .hud:not(.hud-top-right) {
  opacity: 0;
}

body.hud-minimized .hud:not(.hud-top-right),
body.hud-minimized .hud:not(.hud-top-right) > * {
  pointer-events: none;
}

body.hud-minimized .hud-top-left { transform: translateY(-10px); }
body.hud-minimized .hud-bottom-left,
body.hud-minimized .hud-bottom-right { transform: translateY(12px); }
body.hud-minimized .hud-bottom-center { transform: translate(-50%, 12px); }

body.hud-minimized .toolbar > :not(#btn-toggle-hud) {
  display: none;
}

/* 可折叠工具栏：收起后只留展开按钮 */
#btn-toolbar-collapse .icon-sm { margin: 0; color: var(--text-2); transform: rotate(-90deg); }
.toolbar.collapsed #btn-toolbar-collapse .icon-sm { transform: rotate(90deg); }
.toolbar.collapsed > :not(#btn-toolbar-collapse) { display: none; }
body.hud-minimized .toolbar.collapsed > #btn-toggle-hud { display: inline-flex; }
/* 主演图鉴并入工具栏 */
.toolbar .lead-launch { position: static; border: 0; box-shadow: none; background: transparent; padding: 0 11px; gap: 7px; color: var(--text); }
.toolbar .lead-launch:hover { background: var(--hover); }
.toolbar .lead-launch .lead-launch-mark { font: 17px Georgia, serif; color: #d3bb83; line-height: 1; }
.toolbar .lead-launch strong { font-size: 13px; letter-spacing: 1px; }

/* ------------------------------------------------------------------------------------------------------------------
   Top left: brand & reference card
   ------------------------------------------------------------------------------------------------------------------ */
.brand {
  display: flex;
  align-items: center;
  gap: 11px;
  height: var(--bar-h);
  padding: 0 18px 0 9px;
}

.brand-heading {
  display: flex;
  align-items: center;
  gap: 10px;
}

.brand-titles h1 {
  font-size: 14.5px;
  font-weight: 650;
  letter-spacing: 0.02em;
  line-height: 1.2;
}

.brand-subtitle {
  font-size: 11.5px;
  line-height: 1.4;
  color: var(--text-3);
  font-variant-numeric: tabular-nums;
  white-space: nowrap;
}

#hud-fps {
  font-weight: 650;
  color: var(--text-2);
}

#hud-fps.fps-ok { color: var(--ok); }
#hud-fps.fps-warn { color: var(--warn); }
#hud-fps.fps-bad { color: var(--bad); }

/* ------------------------------------------------------------------------------------------------------------------
   Top right: toolbar
   ------------------------------------------------------------------------------------------------------------------ */
.toolbar {
  display: flex;
  align-items: center;
  gap: 2px;
  height: var(--bar-h);
  padding: 0 5px;
}

.toolbar-divider {
  flex: none;
  width: 1px;
  height: 20px;
  margin: 0 5px;
  background: var(--divider);
}

.time-switch {
  display: flex;
  gap: 2px;
}

.time-btn {
  height: 36px;
  padding: 0 9px;
  border-radius: var(--r-ctl);
  display: inline-flex;
  align-items: center;
  gap: 0;
  color: var(--text-2);
  transition: background-color 0.2s ease, color 0.2s ease, gap 0.35s var(--ease-out), padding 0.35s var(--ease-out);
}

.time-btn:hover {
  color: var(--text);
  background: var(--hover);
}

.time-btn .seg-label {
  max-width: 120px;
  opacity: 1;
  overflow: hidden;
  white-space: nowrap;
  font-size: 12.5px;
  font-weight: 600;
  transition: max-width 0.4s var(--ease-out), opacity 0.25s ease;
}

.time-btn.active,
.time-btn.active:hover {
  gap: 6px;
  padding: 0 12px 0 10px;
  background: var(--text);
  color: #121314;
}

.time-btn.active .seg-label {
  max-width: 120px;
  opacity: 1;
}

.tool-btn {
  height: 36px;
  padding: 0 11px;
  border-radius: var(--r-ctl);
  display: inline-flex;
  align-items: center;
  gap: 7px;
  font-size: 13px;
  font-weight: 600;
  white-space: nowrap;
  color: var(--text);
  transition: background-color 0.2s ease;
}

.tool-btn:hover,
.tool-btn.is-open,
.tool-btn.active {
  background: var(--hover);
}

.tool-btn .icon-sm {
  margin-left: -2px;
  color: var(--text-3);
  transition: transform 0.3s var(--ease-out);
}

.tool-btn.is-open .icon-sm {
  transform: rotate(180deg);
}

.tool-btn.icon-only {
  width: 36px;
  padding: 0;
  justify-content: center;
}

a.tool-btn {
  text-decoration: none;
}

.icon-fill {
  fill: currentColor;
  stroke: none;
}

.icon-show {
  display: none;
}

body.hud-minimized .icon-hide {
  display: none;
}

body.hud-minimized .icon-show {
  display: block;
}

.tool-btn:active,
.time-btn:active,
.icon-btn:active,
.mode-btn:active,
.camera-current:active,
.pop-item:active {
  transform: scale(0.97);
}

/* ------------------------------------------------------------------------------------------------------------------
   Popovers
   ------------------------------------------------------------------------------------------------------------------ */
.popover {
  position: fixed;
  inset: auto;
  margin: 0;
  padding: 6px;
  min-width: 276px;
  max-height: calc(100vh - 2 * var(--edge) - 64px);
  overflow-y: auto;
  overscroll-behavior: contain;
  scrollbar-width: thin;
  color: var(--text);
  background: var(--grain), var(--glass-strong);
  -webkit-backdrop-filter: blur(26px) saturate(170%);
  backdrop-filter: blur(26px) saturate(170%);
  border: 1px solid var(--glass-border);
  border-radius: 14px;
  box-shadow: inset 0 1px 0 var(--glass-highlight), 0 28px 60px -22px rgba(0, 0, 0, 0.85), 0 4px 14px rgba(0, 0, 0, 0.35);
  z-index: 40;
}

.popover.hidden {
  display: none;
}

.pop-title {
  padding: 9px 10px 6px;
  font-size: 10.5px;
  font-weight: 650;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--accent);
}

.pop-title:not(:first-child) {
  margin-top: 5px;
  padding-top: 12px;
  border-top: 1px solid var(--divider);
}

.pop-item {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
  padding: 8px 10px;
  border-radius: 9px;
  text-align: left;
  font-size: 13px;
  font-weight: 550;
  color: var(--text);
  transition: background-color 0.15s ease;
}

.pop-item:hover {
  background: var(--hover);
}

.pop-item.active,
.pop-item.active:hover {
  background: var(--accent);
  color: var(--accent-ink);
}

.pop-item.active kbd {
  color: rgba(0, 0, 0, 0.65);
  background: rgba(0, 0, 0, 0.1);
  box-shadow: none;
}

.tp-btn {
  flex-direction: column;
  align-items: flex-start;
  gap: 2px;
}

.pop-sub {
  font-size: 11.5px;
  font-weight: 500;
  color: var(--text-3);
}

/* ------------------------------------------------------------------------------------------------------------------
   Bottom left: Oriental Plaque Signs & Radar Minimap
   ------------------------------------------------------------------------------------------------------------------ */
.location {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 6px;
  pointer-events: none;
}

.location-place {
  max-width: 320px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--accent);
  text-shadow: 0 1px 2px rgba(0, 0, 0, 0.8), 0 0 14px rgba(0, 0, 0, 0.5);
  animation: rise-in 0.4s var(--ease-out) both;
}

.location-signs {
  display: flex;
  align-items: center;
  gap: 6px;
  animation: rise-in 0.4s var(--ease-out) both;
}

.street-sign {
  max-width: 240px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  padding: 8px 14px 7px;
  font-family: var(--font-serif);
  font-size: 15px;
  font-weight: 700;
  line-height: 1.05;
  letter-spacing: 0.06em;
  color: #fdf8ec;
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.1), rgba(255, 255, 255, 0) 55%), var(--plaque-red);
  border-radius: 6px;
  outline: 1.5px solid rgba(230, 180, 80, 0.85);
  outline-offset: -4px;
  box-shadow: 0 1px 0 rgba(0, 0, 0, 0.45), 0 10px 22px -10px rgba(0, 0, 0, 0.8);
}

.street-sign.sign-mirage {
  background: linear-gradient(180deg, rgba(77, 238, 234, 0.16), rgba(0, 0, 0, 0) 60%), var(--plaque-sky);
  outline-color: rgba(77, 238, 234, 0.82);
}

.street-sign.sign-chain {
  background: linear-gradient(180deg, rgba(230, 180, 80, 0.2), rgba(0, 0, 0, 0) 60%), #4a3519;
  outline-color: rgba(243, 198, 104, 0.9);
}

.radar {
  position: relative;
  width: 288px;
  height: 184px;
  overflow: hidden;
  border-radius: 18px;
  background: #091017;
  cursor: pointer;
  transition: transform 0.35s var(--ease-out);
}

.radar:hover {
  transform: translateY(-2px);
}

.radar::after {
  content: '';
  position: absolute;
  inset: 0;
  border-radius: inherit;
  pointer-events: none;
  box-shadow: inset 0 0 0 1px rgba(230, 180, 80, 0.16), inset 0 0 30px rgba(0, 0, 0, 0.6);
}

#minimap-canvas {
  display: block;
  width: 100%;
  height: 100%;
}

.radar-north {
  position: absolute;
  top: 7px;
  left: 50%;
  transform: translateX(-50%);
  width: 18px;
  height: 18px;
  border-radius: 50%;
  display: grid;
  place-items: center;
  font-size: 9.5px;
  font-weight: 800;
  line-height: 1;
  color: var(--accent);
  background: rgba(10, 12, 15, 0.78);
  box-shadow: inset 0 0 0 1px rgba(230, 180, 80, 0.3);
  pointer-events: none;
}

.radar-key {
  position: absolute;
  top: 9px;
  right: 9px;
  z-index: 1;
  color: rgba(255, 255, 255, 0.85);
  background: rgba(10, 12, 15, 0.65);
  transition: background-color 0.2s ease, color 0.2s ease;
}

.radar:hover .radar-key {
  color: var(--accent-ink);
  background: var(--accent);
  box-shadow: none;
}

/* ------------------------------------------------------------------------------------------------------------------
   Bottom center: travel mode switcher & keyboard guide
   ------------------------------------------------------------------------------------------------------------------ */
.controls-hint {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 6px 16px;
  max-width: 680px;
  font-size: 12px;
  font-weight: 500;
  color: rgba(255, 255, 255, 0.90);
  text-shadow: 0 1px 2px rgba(0, 0, 0, 0.8);
  pointer-events: none;
}

.hint {
  display: inline-flex;
  align-items: center;
  gap: 3px;
  white-space: nowrap;
  animation: rise-in 0.35s var(--ease-out) both;
}

.hint kbd {
  color: #ffffff;
  background: rgba(12, 13, 15, 0.62);
  box-shadow: inset 0 0 0 1px rgba(255, 255, 255, 0.18);
  text-shadow: none;
}

.hint-label {
  margin-left: 4px;
}

.mode-switch {
  position: relative;
  display: flex;
  gap: 2px;
  padding: 5px;
}

.mode-indicator {
  position: absolute;
  z-index: 0;
  top: 5px;
  bottom: 5px;
  left: 0;
  width: var(--ind-w, 0px);
  transform: translateX(var(--ind-x, 0px));
  border-radius: 12px;
  background: var(--accent);
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.45), inset 0 -1px 0 rgba(0, 0, 0, 0.15), 0 4px 12px -4px rgba(0, 0, 0, 0.55);
  transition: transform 0.42s var(--ease-out), width 0.42s var(--ease-out);
}

.mode-btn {
  position: relative;
  z-index: 1;
  height: 42px;
  padding: 0 13px 0 11px;
  border-radius: 12px;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 13.5px;
  font-weight: 600;
  white-space: nowrap;
  color: var(--text-2);
  transition: color 0.25s ease, background-color 0.2s ease;
}

.mode-btn:hover {
  color: var(--text);
  background: var(--hover);
}

.mode-btn.active,
.mode-btn.active:hover {
  color: var(--accent-ink);
  background: transparent;
}

.mode-btn .icon {
  width: 20px;
  height: 20px;
  stroke-width: 1.75;
}

.mode-btn kbd {
  margin-left: 2px;
  transition: color 0.25s ease, background-color 0.25s ease;
}

.mode-btn.active kbd {
  color: rgba(23, 20, 10, 0.68);
  background: rgba(23, 20, 10, 0.12);
  box-shadow: none;
}

/* ------------------------------------------------------------------------------------------------------------------
   Bottom right: speed/altitude cluster & camera switcher
   ------------------------------------------------------------------------------------------------------------------ */
.cluster {
  width: 280px;
  overflow: hidden;
}

.gauge {
  padding: 13px 16px 15px;
}

.gauge-top {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 10px;
}

.gauge-label {
  min-width: 0;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  font-size: 11px;
  font-weight: 650;
  letter-spacing: 0.08em;
  color: var(--accent);
}

.gauge-alt {
  flex: none;
  font-size: 12px;
  font-weight: 600;
  font-variant-numeric: tabular-nums;
  color: var(--text-2);
}

.gauge-alt-label {
  font-size: 10.5px;
  letter-spacing: 0.08em;
  color: var(--text-3);
}

.gauge-speed {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 6px;
  margin-top: 5px;
}

.gauge-speed-main {
  display: flex;
  align-items: baseline;
  gap: 6px;
}

#hud-speed {
  font-size: 40px;
  font-weight: 600;
  line-height: 1;
  letter-spacing: -0.035em;
  font-variant-numeric: tabular-nums;
}

.gauge-unit {
  font-size: 12px;
  font-weight: 650;
  letter-spacing: 0.08em;
  color: var(--text-3);
}

.gauge-realm {
  font-size: 11.5px;
  font-weight: 600;
  padding: 2px 8px;
  border-radius: 99px;
  background: rgba(255, 255, 255, 0.08);
  color: var(--text-2);
}

.gauge-realm.realm-mirage {
  background: rgba(77, 238, 234, 0.18);
  color: var(--mirage-cyan);
}

.gauge-realm.realm-chain {
  background: rgba(230, 180, 80, 0.22);
  color: var(--accent);
}

.gauge-meter {
  position: relative;
  height: 4px;
  margin-top: 12px;
  border-radius: 4px;
  background: rgba(255, 255, 255, 0.1);
  overflow: hidden;
}

#hud-speed-meter {
  position: absolute;
  inset: 0;
  border-radius: inherit;
  background: linear-gradient(90deg, var(--accent), var(--mirage-cyan));
  transform-origin: left center;
  transform: scaleX(0);
  transition: transform 0.2s linear;
}

.camera-switch {
  display: flex;
  align-items: center;
  gap: 2px;
  padding: 4px;
  border-top: 1px solid var(--divider);
}

.icon-btn {
  flex: none;
  width: 36px;
  height: 36px;
  border-radius: var(--r-ctl);
  display: inline-grid;
  place-items: center;
  color: var(--text-2);
  transition: background-color 0.15s ease, color 0.15s ease;
}

.icon-btn:hover {
  color: var(--text);
  background: var(--hover);
}

.camera-current {
  flex: 1;
  min-width: 0;
  height: 36px;
  padding: 0 8px;
  border-radius: var(--r-ctl);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  font-size: 13px;
  font-weight: 600;
  transition: background-color 0.15s ease;
}

.camera-current:hover,
.camera-current.is-open {
  background: var(--hover);
}

.camera-current .icon {
  color: var(--accent);
}

#hud-active-camera {
  min-width: 0;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

/* ------------------------------------------------------------------------------------------------------------------
   Full-screen interactive map ([M])
   ------------------------------------------------------------------------------------------------------------------ */
.fullmap-modal {
  position: fixed;
  inset: 0;
  z-index: 90;
  background: #080d14;
  transition: opacity 0.25s ease, visibility 0.25s ease;
}

.fullmap-modal.hidden {
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
}

.fullmap-canvas-wrap {
  position: absolute;
  inset: 0;
  overflow: hidden;
  cursor: crosshair;
}

.fullmap-canvas-wrap.is-panning {
  cursor: grabbing;
}

#fullmap-canvas {
  touch-action: none;
  display: block;
  width: 100%;
  height: 100%;
}

.fullmap-header {
  position: absolute;
  top: var(--edge);
  left: var(--edge);
  right: var(--edge);
  display: flex;
  align-items: stretch;
  gap: 10px;
  pointer-events: none;
}

.fullmap-header > * {
  pointer-events: auto;
}

.fullmap-title {
  display: flex;
  align-items: center;
  gap: 12px;
  min-width: 0;
  padding: 9px 20px 9px 11px;
}

.fullmap-title h2 {
  font-size: 14.5px;
  font-weight: 650;
  letter-spacing: 0.02em;
  line-height: 1.2;
  white-space: nowrap;
}

.fullmap-subtitle {
  font-size: 12px;
  line-height: 1.4;
  color: var(--text-2);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.fullmap-search-wrap {
  flex: 0 1 420px;
  min-width: 180px;
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 0 16px;
  color: var(--text-3);
  cursor: text;
}

.fullmap-search {
  flex: 1;
  min-width: 0;
  height: 100%;
  background: none;
  border: 0;
  outline: none;
  color: var(--text);
  font: inherit;
  font-size: 13.5px;
  user-select: text;
}

.fullmap-search::placeholder {
  color: var(--text-3);
}

.fullmap-layer-bar {
  display: flex;
  align-items: center;
  gap: 3px;
  padding: 5px;
}

.map-layer-btn {
  height: 36px;
  padding: 0 11px;
  border-radius: 10px;
  font-size: 12.5px;
}

.map-layer-btn.active {
  background: rgba(230, 180, 80, 0.22);
  color: var(--accent);
  box-shadow: inset 0 0 0 1px rgba(230, 180, 80, 0.48);
}

.fullmap-close {
  margin-left: auto;
  height: auto;
  padding: 0 14px 0 12px;
  border-radius: var(--r-panel);
}

.map-controls {
  position: absolute;
  top: 50%;
  right: var(--edge);
  translate: 0 -50%;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 10px;
}

.map-zoom {
  display: flex;
  flex-direction: column;
  gap: 2px;
  padding: 4px;
  border-radius: 14px;
}

.fullmap-footer {
  position: absolute;
  left: 50%;
  bottom: var(--edge);
  translate: -50% 0;
  display: flex;
}

.fullmap-status {
  padding: 10px 16px;
  font-size: 12.5px;
  font-weight: 500;
  color: var(--text-2);
  white-space: nowrap;
}

.fullmap-legend {
  position: absolute;
  right: var(--edge);
  bottom: var(--edge);
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 10px 16px;
  font-size: 12px;
  font-weight: 500;
  color: var(--text-2);
}

.legend-item {
  display: inline-flex;
  align-items: center;
  gap: 7px;
}

.legend-swatch {
  flex: none;
  display: inline-block;
}

.player-swatch {
  width: 10px;
  height: 11px;
  background: #ffffff;
  clip-path: polygon(50% 0, 100% 100%, 50% 78%, 0 100%);
}

.waterway-swatch {
  width: 15px;
  height: 4px;
  border-radius: 2px;
  background: #d9382e;
  box-shadow: 0 0 6px rgba(217, 56, 46, 0.75);
}

.waterway-dot-swatch {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: #e6392e;
  box-shadow: 0 0 6px rgba(230, 57, 46, 0.85);
}

.canal-swatch {
  width: 14px;
  height: 4px;
  border-radius: 2px;
  background: #3aa8b8;
}

.chain-swatch {
  width: 16px;
  height: 4px;
  border-radius: 2px;
  background: var(--accent);
}

.mirage-swatch {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--mirage-cyan);
  box-shadow: 0 0 8px var(--mirage-cyan);
}

@media (max-width: 1180px) {
  .controls-hint { display: none; }
  .mode-btn kbd { display: none; }
  .fullmap-legend { display: none; }
}

@media (max-width: 900px) {
  .tool-label,
  .tool-btn kbd { display: none; }
}

@media (max-width: 1100px) {
  .brand { display: none; }
  .hud-top-left { top: 80px; }
  .hud-bottom-right, .hud-bottom-left { bottom: 90px; }
  .cluster { width: 230px; }
  .radar { width: 200px; height: 128px; }
}

@media (max-width: 700px) {
  .hud-top-right { top: 8px; left: 8px; right: 8px; }
  .toolbar { height: auto; min-height: 42px; justify-content: center; flex-wrap: wrap; padding: 4px; gap: 1px; }
  .toolbar-divider { display: none; }
  .time-switch { gap: 1px; }
  .time-btn, .time-btn.active, .time-btn.active:hover, .tool-btn, .tool-btn.icon-only {
    width: 32px; height: 34px; min-width: 0; padding: 0; gap: 0; justify-content: center;
  }
  .time-btn.active .seg-label, .tool-btn .icon-sm { display: none; }
  .hud-top-left { top: 126px; left: 12px; }
  .hud-bottom-left { display: none; }
  .hud-bottom-center { bottom: max(8px, env(safe-area-inset-bottom)); width: calc(100% - 16px); }
  .mode-switch { width: 100%; }
  .mode-btn { flex: 1; min-width: 0; padding: 0 4px; gap: 5px; justify-content: center; font-size: 11px; }
  .mode-btn .icon { width: 16px; height: 16px; }
  .hud-bottom-right { left: 8px; right: 8px; bottom: max(68px, calc(env(safe-area-inset-bottom) + 68px)); }
  .cluster { display: flex; align-items: center; width: 100%; }
  .gauge { padding: 7px 10px; display: flex; align-items: center; gap: 10px; }
  .gauge-label, .gauge-realm, .gauge-meter, .gauge-unit, .camera-current kbd { display: none; }
  .gauge-speed { margin: 0; }
  #hud-speed { font-size: 21px; }
  .camera-switch { flex: 1; min-width: 0; padding: 4px; border: 0; }
  .camera-current { flex: 1; min-width: 0; }
  #hud-active-camera { max-width: 90px; }
  body > .touch-travel { left: 12px; right: 12px; bottom: max(126px, calc(env(safe-area-inset-bottom) + 126px)); justify-content: space-between; align-items: end; pointer-events: none; }
  .touch-travel button { pointer-events: auto; }
  .touch-travel .touch-directions { grid-template-rows: repeat(2,42px); }
  body > .lead-launch { top: 60px; }
}
@media (max-width: 360px) {
  .toolbar .time-switch { width: 100%; justify-content: center; }
  body > .lead-launch { top: 96px; }
  .hud-top-left { top: 158px; }
}

/* 虫洞过场 */
#wormhole-transit { position: fixed; inset: 0; z-index: 90; display: flex; align-items: center; justify-content: center; padding: 8vw;
  background: radial-gradient(circle at 50% 50%, #eafffb 0%, #4deeea 12%, #0a3a44 38%, #03090d 72%);
  opacity: 0; pointer-events: none; transition: opacity .9s ease; }
#wormhole-transit.active { opacity: 1; }
#wormhole-transit.hidden { display: none; }
#wormhole-line { margin: 0; color: #f2fbf8; font-family: "Noto Serif SC", "Songti SC", serif; font-size: clamp(16px, 2.6vw, 28px); letter-spacing: .14em; text-align: center; text-shadow: 0 0 18px #03090d; }

/* 日间/夜间：两个按钮都始终显示文字 */
.time-btn, .time-btn.active, .time-btn.active:hover { gap: 6px; width: auto; padding: 0 12px 0 10px; }
.time-btn .seg-label, .time-btn.active .seg-label { display: inline; max-width: 120px; opacity: 1; }

/* 折叠按钮的箭头在窄屏也要显示 */
.toolbar #btn-toolbar-collapse .icon-sm { display: block; }
.hud-top-right:has(.toolbar.collapsed) { left: auto; }
.toolbar.collapsed { padding: 3px; }