/* ═══════════════════════════════════════════
   七号床的夏天 — 基础层
   ═══════════════════════════════════════════ */

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

:root{
  /* 墨 */
  --ink-950:#05050a;
  --ink-900:#08080f;
  --ink-800:#0d0e19;
  --ink-700:#141524;
  --ink-600:#1d1f31;
  --ink-500:#2a2d44;
  /* 纸与字 */
  --paper:#f4f0e7;
  --text:#eae7df;
  --text-dim:#a7a4b2;
  --text-faint:#6f6c7d;
  /* 点缀 */
  --gold:#e6cb92;
  --gold-soft:rgba(230,203,146,.42);
  --gold-line:rgba(230,203,146,.22);
  --sakura:#f4a8bf;
  --sakura-soft:rgba(244,168,191,.35);
  --teal:#79d6c9;
  --danger:#e2768c;
  /* 尺寸 */
  --ui-r:14px;
  --shadow-lg:0 24px 80px rgba(0,0,0,.62);
  --shadow-md:0 10px 34px rgba(0,0,0,.45);
  /* 字体 */
  --font-ui:-apple-system,BlinkMacSystemFont,"PingFang SC","Hiragino Sans GB","Noto Sans CJK SC","Source Han Sans SC","Microsoft YaHei",sans-serif;
  --font-serif:"Songti SC","Noto Serif CJK SC","Source Han Serif SC","Yu Mincho",serif;
  --font-mono:ui-monospace,"SF Mono",Menlo,Consolas,monospace;
  /* 动效 */
  --ease:cubic-bezier(.33,1,.68,1);
  --ease-out:cubic-bezier(.16,1,.3,1);
}

html,body{
  width:100%;height:100%;
  background:var(--ink-950);
  color:var(--text);
  font-family:var(--font-ui);
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
  overflow:hidden;
  overscroll-behavior:none;
  -webkit-tap-highlight-color:transparent;
}
body{position:fixed;inset:0;}

#boot,#title-screen,#game-screen{
  position:absolute;inset:0;
}
[hidden]{display:none !important;}

button{
  font-family:inherit;color:inherit;background:none;border:0;
  cursor:pointer;letter-spacing:.08em;
}
input,select{font-family:inherit;}

/* 滚动条 */
.scrollable{overflow-y:auto;scrollbar-width:thin;scrollbar-color:var(--gold-soft) transparent;}
.scrollable::-webkit-scrollbar{width:8px;}
.scrollable::-webkit-scrollbar-track{background:transparent;}
.scrollable::-webkit-scrollbar-thumb{
  background:linear-gradient(180deg,var(--gold-soft),rgba(230,203,146,.12));
  border-radius:99px;
}

/* ── 启动画面 ── */
.boot{
  display:grid;place-items:center;
  background:
    radial-gradient(120% 80% at 50% 12%,rgba(60,54,110,.5) 0%,transparent 62%),
    radial-gradient(90% 70% at 78% 92%,rgba(140,70,100,.28) 0%,transparent 58%),
    var(--ink-950);
  z-index:900;
  transition:opacity .8s var(--ease);
}
.boot.done{opacity:0;pointer-events:none;}
.boot-inner{text-align:center;width:min(78vw,420px);}
.boot-logo{
  font-family:var(--font-serif);
  font-size:clamp(26px,7vw,40px);
  letter-spacing:.36em;
  text-indent:.36em;
  color:var(--paper);
  text-shadow:0 0 34px rgba(230,203,146,.35);
  animation:bootIn 1.1s var(--ease-out) both;
}
.boot-sub{
  margin-top:12px;
  font-size:10px;letter-spacing:.42em;text-indent:.42em;
  color:var(--text-faint);
  animation:bootIn 1.1s .12s var(--ease-out) both;
}
.boot-bar{
  margin:34px auto 0;height:2px;width:100%;
  background:rgba(255,255,255,.07);border-radius:2px;overflow:hidden;
}
.boot-bar i{
  display:block;height:100%;width:0%;
  background:linear-gradient(90deg,transparent,var(--gold),var(--sakura));
  transition:width .4s var(--ease);
}
.boot-tip{
  margin-top:14px;font-size:11px;letter-spacing:.2em;color:var(--text-faint);
  min-height:1em;
}
@keyframes bootIn{from{opacity:0;transform:translateY(14px);filter:blur(6px);}to{opacity:1;transform:none;filter:none;}}

/* ── 弹层基座 ── */
.overlay,.backlog{
  position:absolute;inset:0;z-index:600;
  display:grid;place-items:center;
  padding:max(18px,env(safe-area-inset-top)) 18px max(18px,env(safe-area-inset-bottom));
}
.overlay-scrim,.backlog-scrim{
  position:absolute;inset:0;
  background:radial-gradient(120% 100% at 50% 0%,rgba(10,10,20,.72),rgba(4,4,9,.9));
  backdrop-filter:blur(7px) saturate(.9);
  -webkit-backdrop-filter:blur(7px) saturate(.9);
  animation:fadeIn .28s var(--ease) both;
}
@keyframes fadeIn{from{opacity:0}to{opacity:1}}

.panel{
  position:relative;
  width:min(94vw,760px);
  max-height:86vh;
  display:flex;flex-direction:column;
  background:
    linear-gradient(160deg,rgba(28,30,48,.97),rgba(12,13,22,.99));
  border:1px solid var(--gold-line);
  border-radius:var(--ui-r);
  box-shadow:var(--shadow-lg),inset 0 1px 0 rgba(255,255,255,.05);
  animation:panelIn .42s var(--ease-out) both;
  overflow:hidden;
}
@keyframes panelIn{
  from{opacity:0;transform:translateY(20px) scale(.975);}
  to{opacity:1;transform:none;}
}
.panel::before{
  content:"";position:absolute;inset:0;pointer-events:none;
  background:radial-gradient(120% 60% at 50% -10%,rgba(230,203,146,.1),transparent 60%);
}
.panel-head{
  display:flex;align-items:center;justify-content:space-between;
  padding:20px 24px 16px;
  border-bottom:1px solid rgba(255,255,255,.06);
  position:relative;
}
.panel-head h2{
  font-family:var(--font-serif);
  font-size:17px;font-weight:500;
  letter-spacing:.28em;text-indent:.28em;
  color:var(--paper);
}
.panel-head h2::before{
  content:"";display:inline-block;vertical-align:middle;
  width:5px;height:5px;margin-right:12px;border-radius:50%;
  background:var(--gold);box-shadow:0 0 10px var(--gold);
}
.panel-close{
  width:32px;height:32px;border-radius:50%;
  display:grid;place-items:center;
  font-size:14px;color:var(--text-dim);
  transition:.25s var(--ease);
}
.panel-close:hover{color:var(--gold);background:rgba(230,203,146,.1);transform:rotate(90deg);}
.panel-body{
  padding:20px 24px;
  overflow-y:auto;flex:1;
  font-size:13.5px;line-height:1.9;color:var(--text-dim);
  scrollbar-width:thin;scrollbar-color:var(--gold-soft) transparent;
}
.panel-body::-webkit-scrollbar{width:8px;}
.panel-body::-webkit-scrollbar-thumb{background:var(--gold-soft);border-radius:99px;}
.panel-foot{
  padding:14px 24px 20px;display:flex;gap:12px;justify-content:flex-end;
  border-top:1px solid rgba(255,255,255,.06);
}
.panel-foot:empty{display:none;}

/* ── 通用按钮 ── */
.btn{
  padding:10px 22px;border-radius:8px;
  font-size:12.5px;letter-spacing:.16em;
  border:1px solid var(--gold-line);
  color:var(--text);
  background:rgba(255,255,255,.03);
  transition:.25s var(--ease);
}
.btn:hover{border-color:var(--gold-soft);background:rgba(230,203,146,.1);color:var(--gold);}
.btn.primary{
  border-color:transparent;
  background:linear-gradient(135deg,rgba(230,203,146,.9),rgba(244,168,191,.85));
  color:#1a1420;font-weight:600;
}
.btn.primary:hover{filter:brightness(1.08);box-shadow:0 6px 24px rgba(230,203,146,.3);}
.btn.ghost{border-color:rgba(255,255,255,.1);color:var(--text-dim);}

/* ── 提示 ── */
.toast{
  position:absolute;left:50%;bottom:15%;
  transform:translate(-50%,10px);
  padding:11px 24px;border-radius:99px;
  background:rgba(10,10,18,.92);
  border:1px solid var(--gold-line);
  font-size:12.5px;letter-spacing:.12em;color:var(--gold);
  box-shadow:var(--shadow-md);
  z-index:800;pointer-events:none;
  animation:toastIn .3s var(--ease-out) both;
}
@keyframes toastIn{from{opacity:0;transform:translate(-50%,18px);}to{opacity:1;transform:translate(-50%,0);}}

/* ── 竖排装饰文字 ── */
.vertical{
  writing-mode:vertical-rl;
  text-orientation:upright;
  letter-spacing:.3em;
}

/* ── 响应式 ── */
@media (max-width:560px){
  .panel{width:96vw;max-height:88vh;}
  .panel-head{padding:16px 18px 12px;}
  .panel-body{padding:16px 18px;}
  .panel-foot{padding:12px 18px 16px;}
}