/* 上課簡報共用樣式 — 山霧課程版(深墨綠 + 奶油白 + 銅棕) */
:root{
  --ink:#10221d; --pine:#1d4438; --moss:#2e5c4d; --mist:#9db8ae;
  --cream:#f4efe4; --paper:#ece5d4; --copper:#c98f4e; --copper-d:#a8743a;
}
*{margin:0;padding:0;box-sizing:border-box}
html,body{height:100%}
body{
  font-family:"Noto Sans TC","PingFang TC","Microsoft JhengHei",sans-serif;
  background:var(--ink); color:var(--cream); overflow:hidden;
}
::selection{background:var(--copper); color:var(--ink)}

.bar{
  position:fixed; top:0; left:0; right:0; z-index:10;
  display:flex; justify-content:space-between; align-items:center;
  padding:1rem 2.2rem; font-size:.7rem; letter-spacing:.3em; color:rgba(157,184,174,.7);
}
.bar a{color:rgba(201,143,78,.8); text-decoration:none}

.slide{
  position:absolute; inset:0; display:none;
  flex-direction:column; justify-content:center;
  padding:8vh 9vw;
  background:
    radial-gradient(120% 90% at 85% -15%, rgba(157,184,174,.13), transparent 55%),
    radial-gradient(90% 70% at 0% 115%, rgba(201,143,78,.10), transparent 50%),
    var(--ink);
}
.slide.active{display:flex; animation:slidein .45s both}
@keyframes slidein{from{opacity:0; transform:translateY(14px)}to{opacity:1; transform:none}}

.kicker{font-size:.78rem; letter-spacing:.42em; color:var(--copper); margin-bottom:1.6rem}
h1{
  font-family:"Noto Serif TC","PMingLiU",serif; font-weight:600;
  font-size:clamp(2.4rem,6vw,4.6rem); line-height:1.25;
}
h1 em{font-style:normal; color:var(--copper)}
h2{
  font-family:"Noto Serif TC",serif; font-weight:600;
  font-size:clamp(1.8rem,4vw,3rem); line-height:1.35; margin-bottom:2.4rem;
}
h2 em{font-style:normal; color:var(--copper)}
.sub{color:var(--mist); font-size:clamp(1rem,1.8vw,1.25rem); line-height:2; max-width:34em; margin-top:1.4rem}

ul.points{list-style:none; max-width:54rem}
ul.points li{
  font-size:clamp(1.05rem,2vw,1.5rem); line-height:1.8; color:var(--cream);
  padding:.85rem 0 .85rem 2.2rem; position:relative;
  border-bottom:1px solid rgba(157,184,174,.14);
}
ul.points li::before{content:"—"; position:absolute; left:0; color:var(--copper)}
ul.points li strong{color:var(--copper); font-weight:700}
ul.points li .dim{color:var(--mist); font-size:.85em}

.slide.statement{align-items:flex-start}
.statement p.big{
  font-family:"Noto Serif TC",serif; font-weight:600;
  font-size:clamp(1.9rem,4.6vw,3.4rem); line-height:1.6; max-width:22em;
}
.statement p.big em{font-style:normal; color:var(--copper)}

pre{
  background:rgba(16,34,29,.7); border:1px solid rgba(157,184,174,.25);
  border-left:3px solid var(--copper); border-radius:6px;
  padding:1.6rem 1.8rem; max-width:60rem; max-height:62vh; overflow:auto;
  font-family:"JetBrains Mono","Courier New",monospace;
  font-size:clamp(.78rem,1.35vw,1.02rem); line-height:1.75; color:var(--paper);
  white-space:pre-wrap;
}
.code-note{margin-top:1.2rem; color:var(--mist); font-size:.95rem; line-height:1.8}

table{border-collapse:collapse; max-width:58rem; font-size:clamp(.9rem,1.6vw,1.15rem)}
th,td{padding:.8rem 1.3rem; text-align:left; border-bottom:1px solid rgba(157,184,174,.2); line-height:1.7}
th{color:var(--copper); font-weight:700; letter-spacing:.08em; font-size:.85em}
td{color:var(--cream)} td .dim{color:var(--mist)}

.cols{display:grid; grid-template-columns:1fr 1fr; gap:3.5rem; max-width:64rem}
.cols h3{font-family:"Noto Serif TC",serif; color:var(--copper); font-size:1.25rem; margin-bottom:1rem}
.cols p,.cols li{color:var(--cream); line-height:1.9; font-size:1.05rem}
.cols ul{list-style:none}
.cols li{padding-left:1.4rem; position:relative; margin-bottom:.5rem}
.cols li::before{content:"—"; position:absolute; left:0; color:var(--copper)}

.demo-tag{
  display:inline-block; margin-top:2.2rem; font-size:.8rem; letter-spacing:.2em;
  color:var(--copper); border:1px solid rgba(201,143,78,.5); border-radius:99px;
  padding:.5rem 1.3rem;
}

.progress{position:fixed; bottom:0; left:0; right:0; height:3px; background:rgba(157,184,174,.12); z-index:10}
.progress i{display:block; height:100%; width:0; background:var(--copper); transition:width .35s}
.navhint{
  position:fixed; bottom:1.1rem; right:2.2rem; z-index:10;
  font-size:.68rem; letter-spacing:.2em; color:rgba(157,184,174,.45);
}

/* 列印 / 轉 PDF:全部攤平,一頁一張 */
@media print{
  body{overflow:visible; background:var(--ink)}
  .slide{display:flex !important; position:relative; inset:auto; height:100vh; page-break-after:always; animation:none}
  .bar,.progress,.navhint{display:none}
}