/* ========== Theme Variables ========== */
:root{
  /* colors */
  --bg: #0f1a13;
  --bg-elev: #15241a;
  --text: #e8f5ec;
  --muted: #a7c1af;
  --border: #274434;
  --accent: #a6f277;    /* lime/leaf */
  --accent-2: #2e7d32;  /* forest */
  --success: #8ee08a;
  --warning: #ffdf6e;

  /* radii & gaps */
  --radius: 14px;
  --gap-sm: 8px;
  --gap-md: 16px;
  --gap-lg: 24px;

  /* layout */
  --panel-w: 320px;

  /* shadows */
  --shadow-sm: 0 1px 2px rgba(0,0,0,.25);
  --shadow-md: 0 6px 18px rgba(0,0,0,.28);
  --shadow-lg: 0 18px 40px rgba(0,0,0,.35);
}

/* ========== Reset & Base ========== */
*,
*::before,
*::after { box-sizing: border-box; }

html, body { height: 100%; }

html:focus-within { scroll-behavior: smooth; }

body{
  margin: 0;
  color: var(--text);
  background:
    radial-gradient(1200px 800px at 10% 10%, rgba(166,242,119,.06), transparent 60%),
    radial-gradient(900px 600px at 90% 90%, rgba(46,125,50,.18), transparent 60%),
    var(--bg);
  font: 15px/1.6 system-ui, -apple-system, "Segoe UI", Roboto, "Noto Sans", Arial, "PingFang TC", "Microsoft JhengHei", sans-serif;
  text-rendering: optimizeLegibility;
}

img, canvas, svg, video { display: block; max-width: 100%; height: auto; }

h1, h2, h3 { margin: 0 0 var(--gap-md); line-height: 1.25; }
p { margin: 0 0 var(--gap-sm); color: var(--text); }
a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }

/* ========== Common Cards & Utilities ========== */
.card{
  background: linear-gradient(180deg, rgba(255,255,255,.02), rgba(255,255,255,.0)) , var(--bg-elev);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow-sm);
  padding: var(--gap-md);
  backdrop-filter: saturate(1.1) blur(0px);
}

.soft-sep{
  border-top: 1px solid rgba(255,255,255,.06);
  margin: var(--gap-md) 0;
}

/* ========== Title ========== */
#title{
  grid-area: title;
  padding: var(--gap-md) var(--gap-lg) var(--gap-sm);
}
#title h1{
  font-size: clamp(22px, 2.2vw, 32px);
  letter-spacing: .5px;
  color: var(--text);
  text-shadow: 0 2px 0 rgba(0,0,0,.25);
}
#title span{
  font-size: 12.5px;
  color: var(--muted);
  display: inline-block;
  margin-top: 4px;
  opacity: .9;
}

/* ========== Grid Layout (Progressive Enhancement) ========== */
/* Default: body 作為版面網格容器 */
body{
  display: grid;
  grid-template-areas:
    "title title title"
    "meta  main  upgrade"
    "achv  main  upgrade";
  grid-template-columns: minmax(240px, var(--panel-w)) 1fr minmax(260px, 28vw);
  grid-auto-rows: auto;
  gap: var(--gap-lg);
  align-items: start; /* 上緣水平對齊 */
  padding: 0 var(--gap-lg) var(--gap-lg);
}

/* 若頁面另有外層容器，亦套用相同網格（不破壞 body 規劃） */
:is(.app, .root, .page, .container){
  display: grid;
  grid-template-areas:
    "title title title"
    "meta  main  upgrade"
    "achv  main  upgrade";
  grid-template-columns: minmax(240px, var(--panel-w)) 1fr minmax(260px, 28vw);
  grid-auto-rows: auto;
  gap: var(--gap-lg);
  align-items: start;
  padding: 0 var(--gap-lg) var(--gap-lg);
}

/* ========== Regional Placement ========== */
:is(#meta-wrap, .meta-wrap, .meta-warp){
  grid-area: meta;
  display: grid;
  grid-auto-rows: min-content;
  gap: var(--gap-md);
}
#achievement-panel,
.achievement-panel{
  grid-area: achv;
}
#game-wrap, .game-wrap{
  grid-area: main;
}
#UpgradeTable,
.upgrade-panel{
  grid-area: upgrade;
}

/* ========== game-wrap：主畫面置中 + side 於下方 ========== */
:is(#game-wrap, .game-wrap){
  display: flex;
  flex-direction: column;
  align-items: center;         /* main screen 置中 */
  justify-content: flex-start;
  gap: var(--gap-md);
}
:is(#UI, .main-screen, [data-role="main-screen"]){
  width: min(100%, 800px);
  height: auto;
  border-radius: calc(var(--radius) - 4px);
  box-shadow: var(--shadow-md);
  border: 1px solid var(--border);
  background: #0a1410;
}
:is(#side-screen, .side-screen, [data-role="side-screen"]){
  width: min(100%, 800px);     /* side screen 在主畫面下方且等寬 */
  height: auto;
  border-radius: calc(var(--radius) - 4px);
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--border);
  background: #0c1812;
}

/* ========== 左側欄：Score（與 main 上緣齊平） ========== */
:is(#meta-wrap, .meta-wrap, .meta-warp) .card { margin: 0; }
:is(#score, .score, [data-role="score"]){
  display: inline-flex;
  align-items: baseline;
  gap: 10px;
  padding: 14px 16px;
  border-radius: var(--radius);
  border: 1px solid var(--border);
  background: linear-gradient(180deg, rgba(166,242,119,.12), rgba(166,242,119,.04)) , var(--bg-elev);
  box-shadow: var(--shadow-sm);
  font-weight: 700;
  font-size: clamp(20px, 2vw, 28px);
  color: var(--accent);
}
#clickstate{
  color: var(--muted);
  font-size: 13px;
  padding-left: 2px;
}

/* ========== Achievements（位於 meta 下方、仍在左側） ========== */
#achievement-panel,
.achievement-panel{
  padding: var(--gap-md);
  border-radius: var(--radius);
  border: 1px solid var(--border);
  background: linear-gradient(180deg, rgba(255,255,255,.02), rgba(255,255,255,.0)) , var(--bg-elev);
  box-shadow: var(--shadow-sm);
  min-height: 120px;
}
#achievement-panel h2,
.achievement-panel h2{
  font-size: 16px;
  color: var(--text);
  margin-bottom: var(--gap-sm);
}
#achievement-list{
  display: grid;
  gap: 8px;
  max-height: 40vh;
  overflow: auto;
  padding-right: 4px;
}
#achievement-list > div{
  padding: 10px 12px;
  border: 1px dashed rgba(255,255,255,.08);
  border-radius: calc(var(--radius) - 6px);
  background: rgba(255,255,255,.02);
  color: var(--muted);
  transition: transform .2s ease, box-shadow .2s ease, background .2s ease, border-color .2s ease;
}

/* 解鎖（JS 會把 color 設成 lime）：顯示 pop-in + shimmer + 柔光 */
#achievement-list > div[style*="lime"]{
  color: var(--success) !important;
  border-color: rgba(166,242,119,.35);
  background:
    linear-gradient(90deg, rgba(166,242,119,.06), rgba(255,255,255,.03) 35%, rgba(166,242,119,.06) 70%) ,
    rgba(166,242,119,.05);
  box-shadow: 0 0 0 1px rgba(166,242,119,.35), 0 6px 18px rgba(166,242,119,.18);
  animation: pop-in .36s cubic-bezier(.2,.8,.2,1), shimmer 2.2s linear infinite;
}

/* 未解鎖（JS 會把 color 設成 red） */
#achievement-list > div[style*="red"]{
  opacity: .75;
  filter: saturate(.85);
}

/* ========== Upgrade 右側欄（與 main 上緣齊平） ========== */
#UpgradeTable,
.upgrade-panel{
  padding: var(--gap-md);
  border-radius: var(--radius);
  border: 1px solid var(--border);
  background: linear-gradient(180deg, rgba(255,255,255,.02), rgba(255,255,255,.0)) , var(--bg-elev);
  box-shadow: var(--shadow-sm);
  display: grid;
  gap: var(--gap-md);
  align-self: start;
}
.character-panel{
  border: 1px solid rgba(255,255,255,.08);
  border-radius: calc(var(--radius) - 6px);
  padding: var(--gap-md);
  background: rgba(255,255,255,.02);
  transition: transform .12s ease, box-shadow .2s ease, border-color .2s ease;
}
.character-panel:hover{
  transform: translateY(-1px);
  box-shadow: var(--shadow-md);
  border-color: rgba(166,242,119,.35);
}
.character-panel h3{
  font-size: 15px;
  margin-bottom: 10px;
  color: var(--text);
}
.character-panel ul{
  list-style: none;
  padding: 0;
  margin: 0;
  display: grid;
  gap: 8px;
}
.character-panel li{
  display: grid;
  gap: 6px;
  padding: 8px 10px;
  border-radius: 10px;
  background: rgba(255,255,255,.03);
  border: 1px solid rgba(255,255,255,.06);
}
.character-panel button{
  appearance: none;
  border: 1px solid var(--border);
  background: linear-gradient(180deg, rgba(166,242,119,.18), rgba(46,125,50,.22));
  color: #07230f;
  font-weight: 700;
  letter-spacing: .2px;
  padding: 8px 10px;
  border-radius: 10px;
  cursor: pointer;
  box-shadow: inset 0 1px 0 rgba(255,255,255,.35), 0 2px 10px rgba(0,0,0,.25);
  transition: transform .06s ease, box-shadow .2s ease, background .2s ease, border-color .2s ease;
}
.character-panel button:hover{
  transform: translateY(-1px);
  box-shadow: inset 0 1px 0 rgba(255,255,255,.45), 0 8px 20px rgba(0,0,0,.35);
  border-color: rgba(166,242,119,.55);
}
.character-panel button:active{
  transform: translateY(0);
}
.character-panel button:focus-visible{
  outline: 3px solid rgba(166,242,119,.65);
  outline-offset: 2px;
}

/* ========== 右下角固定：Game Log（不遮擋主要互動） ========== */
:is(#game-log, .game-log, [data-role="game-log"]){
  position: fixed;
  right: var(--gap-lg);
  bottom: var(--gap-lg);
  width: clamp(260px, 22vw, 380px);
  max-height: 40vh; /* 規格要求 */
  overflow: auto;
  z-index: 50;
  border-radius: var(--radius);
  border: 1px solid var(--border);
  background: rgba(12, 24, 18, .88);
  color: var(--text);
  box-shadow: var(--shadow-lg);
  backdrop-filter: blur(6px) saturate(1.1);
  padding: var(--gap-md);
}
:is(#game-log, .game-log) h2{
  font-size: 14px;
  margin-bottom: 8px;
  color: var(--muted);
}
#log-panel{
  display: grid;
  gap: 6px;
  font-size: 12.5px;
  line-height: 1.5;
  color: var(--text);
}
#log-panel > div{
  padding: 6px 8px;
  border-radius: 8px;
  background: rgba(255,255,255,.03);
  border: 1px solid rgba(255,255,255,.06);
}

/* ========== Accessibility ========== */
:focus-visible{
  outline: 3px solid rgba(166,242,119,.7);
  outline-offset: 2px;
}
[role="button"], button { cursor: pointer; }
[disabled], .is-locked { cursor: not-allowed; opacity: .6; }

@media (prefers-reduced-motion: reduce){
  * { animation: none !important; transition: none !important; }
}

/* ========== Animations ========== */
@keyframes pop-in{
  0%{ transform: scale(.92); opacity: 0; filter: blur(2px); }
  60%{ transform: scale(1.02); opacity: 1; filter: blur(0); }
  100%{ transform: scale(1); }
}
@keyframes shimmer{
  0% { background-position: -200% 0; }
  100% { background-position: 200% 0; }
}
#achievement-list > div[style*="lime"]{
  background-size: 200% 100%;
}

/* ========== Responsive ========== */
/* 768–1199px：upgrade 跌落 main 下方；side 仍在 main 下方 */
@media (max-width: 1199px) and (min-width: 768px){
  body,
  :is(.app, .root, .page, .container){
    grid-template-areas:
      "title title"
      "meta  main"
      "achv  main"
      ".     main"
      "upgrade upgrade"; /* upgrade 跌落並橫跨兩欄 */
    grid-template-columns: minmax(220px, var(--panel-w)) 1fr;
  }
}

/* <768px：縱向堆疊：score → achievement → main → side → upgrade；log 縮小 */
@media (max-width: 767.98px){
  body,
  :is(.app, .root, .page, .container){
    grid-template-areas:
      "title"
      "meta"
      "achv"
      "main"
      "upgrade";
    grid-template-columns: 1fr;
    gap: var(--gap-md);
    padding: 0 var(--gap-md) var(--gap-md);
  }

  :is(#game-log, .game-log){
    right: var(--gap-md);
    bottom: var(--gap-md);
    width: clamp(220px, 60vw, 320px);
    max-height: 32vh; /* 更不遮擋主要互動 */
    font-size: 12px;
  }

  :is(#UI, .main-screen, [data-role="main-screen"]),
  :is(#side-screen, .side-screen, [data-role="side-screen"]){
    width: 100%;
  }
}

/* ========== Nice-to-have Scrollbar (WebKit) ========== */
#achievement-list::-webkit-scrollbar,
#log-panel::-webkit-scrollbar{
  width: 10px;
}
#achievement-list::-webkit-scrollbar-track,
#log-panel::-webkit-scrollbar-track{
  background: rgba(255,255,255,.04);
  border-radius: 999px;
}
#achievement-list::-webkit-scrollbar-thumb,
#log-panel::-webkit-scrollbar-thumb{
  background: linear-gradient(180deg, rgba(166,242,119,.5), rgba(46,125,50,.6));
  border-radius: 999px;
  border: 2px solid rgba(0,0,0,.25);
}