/* Pocket Dyson — 原生 DOM UI 样式（深色科幻风 v2：设计令牌 + 毛玻璃面板） */
* { box-sizing: border-box; margin: 0; padding: 0; }
:root {
  /* 设计令牌 */
  --bg: #05080e;
  --panel: rgba(13, 20, 30, 0.78);
  --panel-solid: #101826;
  --panel-border: rgba(120, 180, 255, 0.16);
  --panel-border-hi: rgba(120, 190, 255, 0.45);
  --panel-blur: 14px;
  --radius: 10px;
  --radius-sm: 6px;
  --accent: #53c8ff;
  --accent-dim: #2a7ab0;
  --accent2: #ffd54f;
  --ok: #69f0ae;
  --bad: #ff5252;
  --text: #d5dee8;
  --dim: #7d8ea0;
  --glow-accent: 0 0 12px rgba(83, 200, 255, 0.35);
  --shadow-panel: 0 10px 40px rgba(0, 0, 0, 0.55), inset 0 1px 0 rgba(255, 255, 255, 0.05);
  --font: "PingFang SC", "Microsoft YaHei", system-ui, sans-serif;
}
html, body { width: 100%; height: 100%; overflow: hidden; background: var(--bg);
  font-family: var(--font); color: var(--text); font-size: 14px; }
#gl { position: fixed; inset: 0; display: block; }
.hidden { display: none !important; }

/* AI 物品图标（assets/art，缺失时回退 emoji，见 src/game/art.js） */
.art-icon { width: 1.3em; height: 1.3em; vertical-align: -0.28em; object-fit: contain; }

/* ---------- 控件 ---------- */
button { background: linear-gradient(180deg, #1d2a3a, #16202e); color: var(--text);
  border: 1px solid var(--panel-border); border-radius: var(--radius-sm);
  padding: 4px 12px; cursor: pointer; font-size: 13px; font-family: var(--font);
  transition: background 0.15s, border-color 0.15s, box-shadow 0.15s, transform 0.05s; }
button:hover { background: linear-gradient(180deg, #27394f, #1b2939); border-color: var(--panel-border-hi); }
button:active { transform: translateY(1px); }
button.on { background: linear-gradient(180deg, #155a80, #0e4260); border-color: var(--accent);
  color: #fff; box-shadow: var(--glow-accent); }
button:disabled { opacity: 0.38; cursor: not-allowed; }
button.big { font-size: 16px; padding: 12px 24px; display: block; width: 100%; margin-top: 12px;
  border-radius: 8px; letter-spacing: 2px; }
input, select { background: #0c1420; color: var(--text); border: 1px solid var(--panel-border);
  border-radius: var(--radius-sm); padding: 5px 9px; font-size: 13px; font-family: var(--font);
  outline: none; transition: border-color 0.15s, box-shadow 0.15s; }
input:focus, select:focus { border-color: var(--accent); box-shadow: 0 0 0 2px rgba(83, 200, 255, 0.15); }
input[type=range] { accent-color: var(--accent); padding: 0; }
input[type=checkbox], input[type=radio] { accent-color: var(--accent); }

/* ---------- 覆盖层（开局/通关） ---------- */
.overlay { position: fixed; inset: 0; display: flex; align-items: center; justify-content: center; z-index: 100;
  background: radial-gradient(ellipse at 50% 35%, #101c30 0%, #05070c 75%); }
/* 标题界面背景图（assets/art/title_art.png，缺失时仅渐变回退，由 main.js 探测后加类） */
body.has-title-art #start-screen {
  background: linear-gradient(rgba(4, 7, 12, 0.42) 0%, rgba(4, 7, 12, 0.78) 78%),
    url("assets/art/title_art.png") center / cover no-repeat, #05070c; }
.start-box { text-align: center; padding: 44px 64px; border: 1px solid var(--panel-border);
  background: var(--panel); backdrop-filter: blur(var(--panel-blur)); -webkit-backdrop-filter: blur(var(--panel-blur));
  border-radius: 16px; min-width: 440px; box-shadow: var(--shadow-panel); }
.start-box h1 { font-size: 46px; letter-spacing: 10px; font-weight: 800; margin-bottom: 6px;
  background: linear-gradient(180deg, #bfe8ff 20%, var(--accent) 60%, #1a6a9a);
  -webkit-background-clip: text; background-clip: text; color: transparent;
  text-shadow: 0 0 34px rgba(83, 200, 255, 0.35); }
.subtitle { color: var(--dim); margin-bottom: 26px; letter-spacing: 3px; font-size: 13px; }
.start-form label { display: block; margin: 12px 0; text-align: left; }
.start-form input[type=number] { width: 140px; margin-left: 8px; }
.start-form .chk { display: flex; align-items: center; gap: 8px; }
.start-help { margin-top: 26px; color: var(--dim); font-size: 12px; line-height: 1.9;
  border-top: 1px solid var(--panel-border); padding-top: 16px; }
#victory-screen { background: radial-gradient(ellipse at 50% 30%, rgba(80, 60, 8, 0.5) 0%, rgba(5, 7, 12, 0.94) 70%); }
#victory-screen .start-box h1 { background: linear-gradient(180deg, #fff3c4 15%, var(--accent2) 55%, #b8860b);
  -webkit-background-clip: text; background-clip: text; color: transparent;
  text-shadow: 0 0 40px rgba(255, 213, 79, 0.45); }
#victory-stats { margin: 18px 0; line-height: 2.1; color: var(--accent2); font-size: 15px;
  border-top: 1px solid rgba(255, 213, 79, 0.25); border-bottom: 1px solid rgba(255, 213, 79, 0.25); padding: 10px 0; }

/* ---------- HUD ---------- */
#hud { position: fixed; inset: 0; pointer-events: none; z-index: 10; }
#hud > * { pointer-events: auto; }
#topbar { position: absolute; top: 0; left: 0; right: 0; height: 44px; display: flex;
  align-items: center; gap: 12px; padding: 0 14px;
  background: linear-gradient(rgba(6, 10, 16, 0.92), rgba(6, 10, 16, 0.55));
  backdrop-filter: blur(10px); -webkit-backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--panel-border); }
#speed-group { display: flex; gap: 3px; }
#speed-group button { min-width: 42px; padding: 3px 6px; }
#research-indicator { cursor: pointer; padding: 5px 12px; border-radius: var(--radius-sm); max-width: 320px;
  overflow: hidden; white-space: nowrap; text-overflow: ellipsis; border: 1px solid transparent;
  transition: border-color 0.15s, background 0.15s; }
#research-indicator:hover { background: #16202e; border-color: var(--panel-border); }
#research-indicator .prog { color: var(--accent2); font-weight: 600; }
#threat-indicator { color: #ff8a80; padding: 4px 10px; }
#threat-indicator.high { animation: blink 1s infinite; }
@keyframes blink { 50% { opacity: 0.35; } }
#topbar-btns { margin-left: auto; display: flex; gap: 6px; }
#topbar-btns button { font-size: 16px; padding: 3px 9px; }
#objective { position: absolute; top: 54px; left: 14px; background: var(--panel);
  backdrop-filter: blur(var(--panel-blur)); -webkit-backdrop-filter: blur(var(--panel-blur));
  border-left: 3px solid var(--accent2); padding: 9px 14px; border-radius: var(--radius-sm); max-width: 360px;
  font-size: 13px; line-height: 1.55; box-shadow: var(--shadow-panel); border-top: 1px solid var(--panel-border);
  border-right: 1px solid var(--panel-border); border-bottom: 1px solid var(--panel-border); }
#alert-banner { position: absolute; top: 54px; left: 50%; transform: translateX(-50%);
  background: linear-gradient(180deg, rgba(150, 16, 16, 0.95), rgba(110, 8, 8, 0.95)); color: #fff;
  padding: 9px 26px; border-radius: var(--radius-sm); font-weight: bold; letter-spacing: 1px;
  border: 1px solid rgba(255, 120, 120, 0.5); box-shadow: 0 0 24px rgba(255, 40, 40, 0.35);
  animation: blink 0.8s infinite; }
#mecha-status { position: absolute; left: 14px; bottom: 82px; width: 230px; }
.energy-wrap { position: relative; height: 20px; background: rgba(8, 14, 22, 0.85);
  border: 1px solid var(--panel-border); border-radius: 10px; overflow: hidden;
  box-shadow: inset 0 2px 6px rgba(0, 0, 0, 0.5); }
#energy-bar { height: 100%; width: 100%; border-radius: 9px;
  background: linear-gradient(90deg, #0277bd, #53c8ff 70%, #9fe4ff);
  box-shadow: 0 0 10px rgba(83, 200, 255, 0.55); transition: width 0.2s; }
#energy-bar.low { background: linear-gradient(90deg, #c62828, #ff5252); box-shadow: 0 0 10px rgba(255, 82, 82, 0.5); }
#energy-text { position: absolute; inset: 0; text-align: center; font-size: 11px; line-height: 20px;
  color: #fff; text-shadow: 0 1px 2px #000; letter-spacing: 1px; }
#mecha-mode { margin-top: 5px; font-size: 12px; color: var(--dim); text-shadow: 0 1px 2px #000; }
#controls-hint { position: absolute; left: 14px; bottom: 56px; font-size: 11px; color: var(--dim);
  text-shadow: 0 1px 2px #000; letter-spacing: 0.5px; pointer-events: none; }
#intro-hint { position: absolute; top: 36%; left: 50%; transform: translate(-50%, -50%);
  background: var(--panel); backdrop-filter: blur(var(--panel-blur)); -webkit-backdrop-filter: blur(var(--panel-blur));
  border: 1px solid var(--accent-dim); padding: 14px 32px; border-radius: 26px; font-size: 16px;
  letter-spacing: 1px; box-shadow: var(--glow-accent), var(--shadow-panel); pointer-events: none;
  animation: hint-in 0.4s ease-out; white-space: nowrap; }
#intro-hint b { color: var(--accent); }
#intro-hint.fade { opacity: 0; transition: opacity 0.9s; }
@keyframes hint-in { from { transform: translate(-50%, -44%); opacity: 0; } }
#hotbar { position: absolute; bottom: 14px; left: 50%; transform: translateX(-50%);
  display: flex; gap: 5px; background: var(--panel); padding: 7px; border-radius: 12px;
  border: 1px solid var(--panel-border); backdrop-filter: blur(var(--panel-blur));
  -webkit-backdrop-filter: blur(var(--panel-blur)); box-shadow: var(--shadow-panel); }
.hot-slot { width: 54px; height: 54px; border: 1px solid var(--panel-border); border-radius: 8px;
  background: linear-gradient(180deg, #18222f, #121a26); cursor: pointer; position: relative;
  text-align: center; padding-top: 5px; transition: border-color 0.12s, box-shadow 0.12s, transform 0.12s; }
.hot-slot:hover { border-color: var(--panel-border-hi); transform: translateY(-2px); }
.hot-slot.sel { border-color: var(--accent2); box-shadow: 0 0 12px rgba(255, 213, 79, 0.45); }
.hot-slot.locked { opacity: 0.32; }
.hot-slot .ic { font-size: 20px; display: block; line-height: 30px; }
.hot-slot .ic .art-icon { width: 28px; height: 28px; vertical-align: middle; }
.hot-slot .n { position: absolute; right: 4px; bottom: 2px; font-size: 11px; color: var(--accent2); font-weight: 600; }
.hot-slot .k { position: absolute; left: 4px; top: 2px; font-size: 10px; color: var(--dim); }
#mode-hint { position: absolute; bottom: 84px; left: 50%; transform: translateX(-50%);
  background: var(--panel); backdrop-filter: blur(var(--panel-blur)); -webkit-backdrop-filter: blur(var(--panel-blur));
  padding: 7px 18px; border-radius: 20px; border: 1px solid var(--accent-dim); font-size: 13px;
  box-shadow: var(--glow-accent); }
#travel-hud { position: absolute; top: 96px; left: 50%; transform: translateX(-50%);
  background: var(--panel); backdrop-filter: blur(var(--panel-blur)); -webkit-backdrop-filter: blur(var(--panel-blur));
  border: 1px solid var(--accent-dim); padding: 12px 28px; border-radius: var(--radius);
  font-size: 15px; text-align: center; box-shadow: var(--shadow-panel); }

/* ---------- toast ---------- */
#toasts { position: fixed; left: 14px; bottom: 150px; z-index: 60; display: flex; flex-direction: column-reverse; gap: 7px; pointer-events: none; }
.toast { background: var(--panel); backdrop-filter: blur(var(--panel-blur)); -webkit-backdrop-filter: blur(var(--panel-blur));
  border: 1px solid var(--panel-border); border-left: 3px solid var(--accent); padding: 9px 16px;
  border-radius: var(--radius-sm); max-width: 400px; animation: toast-in 0.22s cubic-bezier(0.2, 0.9, 0.3, 1.2);
  font-size: 13px; box-shadow: var(--shadow-panel); }
.toast.err { border-left-color: var(--bad); }
.toast.good { border-left-color: var(--ok); }
.toast.tech { border-left-color: var(--accent2); }
.toast.fade { opacity: 0; transition: opacity 0.5s; }
@keyframes toast-in { from { transform: translateX(-24px); opacity: 0; } }

/* ---------- 面板通用（毛玻璃） ---------- */
.panel { position: fixed; z-index: 40; background: var(--panel);
  backdrop-filter: blur(var(--panel-blur)); -webkit-backdrop-filter: blur(var(--panel-blur));
  border: 1px solid var(--panel-border); border-radius: var(--radius);
  padding: 14px; box-shadow: var(--shadow-panel); }
.panel h3 { font-size: 15px; color: var(--accent); margin-bottom: 12px; display: flex;
  justify-content: space-between; align-items: center; letter-spacing: 1px;
  border-bottom: 1px solid var(--panel-border); padding-bottom: 8px; }
.panel h3 .x { cursor: pointer; color: var(--dim); font-size: 17px; padding: 0 5px; border-radius: 4px; }
.panel h3 .x:hover { color: #fff; background: rgba(255, 255, 255, 0.08); }
.panel .close-x { float: right; }
.panel h4 { letter-spacing: 0.5px; }

#panel-build { left: 14px; top: 104px; width: 392px; max-height: calc(100% - 230px); overflow-y: auto; }
#panel-backpack { right: 14px; top: 62px; width: 430px; max-height: calc(100% - 190px); overflow-y: auto; }
#panel-research { left: 50%; top: 50%; transform: translate(-50%, -50%); width: min(900px, 92vw); max-height: 86vh; overflow: auto; }
#panel-power { right: 14px; top: 62px; width: 390px; max-height: 70vh; overflow-y: auto; }
#panel-stats { left: 50%; top: 50%; transform: translate(-50%, -50%); width: min(660px, 90vw); max-height: 80vh; overflow: auto; }
#panel-logistics { left: 50%; top: 50%; transform: translate(-50%, -50%); width: min(730px, 92vw); max-height: 80vh; overflow: auto; }
#panel-dyson { left: 50%; top: 50%; transform: translate(-50%, -50%); width: min(620px, 90vw); max-height: 84vh; overflow: auto; }
#building-popup { min-width: 310px; max-width: 430px; max-height: 76vh; overflow-y: auto; }
#esc-menu { left: 50%; top: 50%; transform: translate(-50%, -50%); width: 400px; }
#planet-info { right: 14px; top: 62px; width: 310px; }
#dyson-info { right: 14px; top: 62px; width: 330px; border-color: rgba(179, 136, 255, 0.35); }

/* ---------- 建造菜单 ---------- */
.build-cats { display: flex; gap: 5px; margin-bottom: 10px; flex-wrap: wrap; }
.build-cats button { flex: 1; min-width: 58px; padding: 5px 4px; }
.build-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 7px; }
.build-item { border: 1px solid var(--panel-border); border-radius: 8px;
  background: linear-gradient(180deg, #18222f, #121a26);
  padding: 8px 2px 6px; text-align: center; cursor: pointer; position: relative;
  transition: border-color 0.12s, transform 0.12s, box-shadow 0.12s; }
.build-item:hover { border-color: var(--panel-border-hi); transform: translateY(-2px); box-shadow: 0 4px 14px rgba(0, 0, 0, 0.4); }
.build-item.locked { opacity: 0.42; cursor: not-allowed; }
.build-item.locked:hover { transform: none; box-shadow: none; }
.build-item .ic { font-size: 22px; display: block; line-height: 30px; }
.build-item .ic .art-icon { width: 30px; height: 30px; vertical-align: middle; }
.build-item .nm { font-size: 11px; display: block; margin-top: 3px; color: var(--text); }
.build-item .n { position: absolute; right: 5px; top: 3px; font-size: 11px; color: var(--accent2); font-weight: 600; }
.build-item .lock-tip { font-size: 10px; color: var(--bad); display: block; }

/* ---------- 背包/合成 ---------- */
.inv-grid { display: grid; grid-template-columns: repeat(6, 1fr); gap: 5px; margin-bottom: 12px; }
.inv-slot { border: 1px solid var(--panel-border); border-radius: var(--radius-sm);
  background: linear-gradient(180deg, #18222f, #121a26);
  text-align: center; padding: 5px 0; position: relative; min-height: 48px;
  transition: border-color 0.12s; }
.inv-slot:hover { border-color: var(--panel-border-hi); }
.inv-slot .ic { font-size: 18px; display: block; line-height: 26px; }
.inv-slot .ic .art-icon { width: 26px; height: 26px; vertical-align: middle; }
.inv-slot .n { font-size: 11px; color: var(--accent2); font-weight: 600; }
.inv-slot .spray { position: absolute; left: 3px; top: 1px; font-size: 9px; color: var(--ok); }
.craft-row { display: flex; align-items: center; gap: 8px; padding: 6px 4px; border-bottom: 1px solid rgba(120, 180, 255, 0.08); }
.craft-row .io { flex: 1; font-size: 12px; line-height: 1.6; }
.craft-row button { min-width: 48px; }
.tabs { display: flex; gap: 5px; margin-bottom: 10px; }
.tabs button { flex: 1; }
.fuel-row { display: flex; align-items: center; gap: 8px; padding: 5px 4px; }

/* ---------- 研究面板 ---------- */
.tech-tier { margin-bottom: 16px; }
.tech-tier h4 { color: var(--accent2); font-size: 13px; margin-bottom: 7px; letter-spacing: 1px; }
.tech-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(155px, 1fr)); gap: 7px; }
.tech-node { border: 1px solid var(--panel-border); border-radius: 8px; padding: 8px;
  background: linear-gradient(180deg, #18222f, #121a26); font-size: 12px; line-height: 1.5;
  transition: border-color 0.12s, transform 0.12s; }
.tech-node.done { border-color: rgba(105, 240, 174, 0.5); opacity: 0.75; }
.tech-node.avail { border-color: var(--accent-dim); cursor: pointer; }
.tech-node.avail:hover { background: linear-gradient(180deg, #1c2f44, #14202f); transform: translateY(-2px);
  border-color: var(--accent); box-shadow: var(--glow-accent); }
.tech-node.locked { opacity: 0.45; }
.tech-node.queued { border-color: var(--accent2); }
.tech-node .cost { color: var(--dim); margin-top: 4px; font-size: 11px; }
.tech-node .desc { color: var(--dim); font-size: 11px; margin-top: 2px; }
#research-current { background: rgba(16, 30, 46, 0.7); border: 1px solid var(--accent-dim);
  border-radius: 8px; padding: 10px 14px; margin-bottom: 12px; }
.progbar { height: 10px; background: #0a1220; border-radius: 5px; overflow: hidden; margin-top: 8px;
  box-shadow: inset 0 1px 4px rgba(0, 0, 0, 0.6); }
.progbar > div { height: 100%; background: linear-gradient(90deg, var(--accent-dim), var(--accent));
  box-shadow: 0 0 8px rgba(83, 200, 255, 0.5); border-radius: 5px; transition: width 0.25s; }
.queue-row { display: flex; gap: 6px; align-items: center; padding: 2px 0; font-size: 12px; }

/* ---------- 电力/统计/物流 ---------- */
.grid-row { border: 1px solid var(--panel-border); border-radius: 8px; padding: 10px; margin-bottom: 9px;
  background: linear-gradient(180deg, #18222f, #121a26); }
.grid-row.warn { border-color: rgba(255, 82, 82, 0.55); box-shadow: 0 0 14px rgba(255, 82, 82, 0.15); }
.grid-row .nums { display: flex; gap: 14px; flex-wrap: wrap; font-size: 12px; margin-top: 6px; }
.grid-row .nums b { color: var(--accent2); }
.stat-table { width: 100%; border-collapse: collapse; font-size: 12px; }
.stat-table th { text-align: left; color: var(--dim); padding: 5px 6px; border-bottom: 1px solid var(--panel-border);
  cursor: pointer; letter-spacing: 0.5px; }
.stat-table th:hover { color: var(--accent); }
.stat-table td { padding: 4px 6px; border-bottom: 1px solid rgba(120, 180, 255, 0.07); }
.stat-table tr:hover td { background: rgba(120, 180, 255, 0.05); }
.bar-cell { position: relative; min-width: 84px; }
.bar-cell .bar { position: absolute; left: 0; top: 2px; bottom: 2px; border-radius: 3px;
  background: linear-gradient(90deg, rgba(83, 200, 255, 0.12), rgba(83, 200, 255, 0.32)); }
.bar-cell .bar.c { background: linear-gradient(90deg, rgba(255, 82, 82, 0.12), rgba(255, 82, 82, 0.32)); }
.bar-cell span { position: relative; padding-left: 4px; }
.station-box { border: 1px solid var(--panel-border); border-radius: 8px; padding: 10px; margin-bottom: 9px;
  background: linear-gradient(180deg, #18222f, #121a26); font-size: 12px; }
.slot-row { display: flex; gap: 8px; align-items: center; padding: 4px 0; border-bottom: 1px dashed rgba(120, 180, 255, 0.1); }
.slot-row select, .slot-row input { font-size: 12px; padding: 3px 5px; }
.slot-row input[type=number] { width: 64px; }

/* ---------- 戴森球编辑器 ---------- */
.slider-row { display: flex; align-items: center; gap: 10px; margin: 10px 0; }
.slider-row label { width: 90px; color: var(--dim); }
.slider-row input[type=range] { flex: 1; }
.slider-row .val { width: 72px; text-align: right; color: var(--accent2); font-weight: 600; }
.dyson-layer { border: 1px solid var(--panel-border); border-radius: 8px; padding: 10px; margin-bottom: 9px;
  background: linear-gradient(180deg, #18222f, #121a26); font-size: 12px; }
.dyson-nums { display: grid; grid-template-columns: 1fr 1fr; gap: 6px 18px; margin: 10px 0; font-size: 13px; }
.dyson-nums b { color: var(--accent2); }

/* ---------- 建筑弹窗 ---------- */
.recipe-list { display: flex; flex-direction: column; gap: 5px; }
.recipe-item { display: flex; align-items: center; gap: 8px; padding: 7px 8px; border: 1px solid var(--panel-border);
  border-radius: var(--radius-sm); cursor: pointer; font-size: 12px; transition: border-color 0.12s, background 0.12s; }
.recipe-item:hover { border-color: var(--panel-border-hi); }
.recipe-item.cur { border-color: var(--accent2); background: rgba(255, 213, 79, 0.07); }
.recipe-item.locked { opacity: 0.45; cursor: not-allowed; }
.recipe-item .arrow { color: var(--dim); }
.bp-section { margin-top: 12px; border-top: 1px solid var(--panel-border); padding-top: 10px; }
.bp-kv { display: flex; justify-content: space-between; font-size: 12px; padding: 3px 0; }
.dir-btns { display: flex; gap: 5px; }

/* ---------- Esc 菜单 ---------- */
.save-slots { display: flex; flex-direction: column; gap: 7px; margin: 12px 0; }
.save-slot { display: flex; gap: 8px; align-items: center; padding: 6px 8px;
  border: 1px solid var(--panel-border); border-radius: var(--radius-sm); background: rgba(10, 16, 26, 0.5); }
.save-slot .info { flex: 1; font-size: 12px; color: var(--dim); }
#esc-menu button.big { margin-top: 8px; }

::-webkit-scrollbar { width: 9px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: #26374c; border-radius: 5px; border: 2px solid transparent; background-clip: content-box; }
::-webkit-scrollbar-thumb:hover { background: #35506e; border: 2px solid transparent; background-clip: content-box; }