/* wryan.net — editorial redesign 2026-10 */
/* 預設深色（不跟隨系統） */
:root{
  --bg:#121210; --bg-2:#1b1a17; --ink:#f3efe6; --fg:#e2ddd2; --muted:#a59f92;
  --line:#34312b; --accent:#ef8a5a; --accent-ink:#f6a27a; --warn-bg:#2a1c15;
  --serif:"Noto Serif TC","Noto Serif CJK TC","Songti TC","PMingLiU",serif;
  --sans:"Noto Sans TC","PingFang TC","Microsoft JhengHei",system-ui,sans-serif;
  --mono:"JetBrains Mono",ui-monospace,"SFMono-Regular",Menlo,monospace;
  --wrap:1180px; --read:44rem; --gut:clamp(1.25rem,4vw,3rem);
  --ease:cubic-bezier(.2,.7,.1,1);
  color-scheme:dark;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;text-size-adjust:100%;scroll-behavior:smooth}
body{margin:0;background:var(--bg);color:var(--fg);font:400 1.0625rem/1.85 var(--sans);
  font-feature-settings:"palt" 0;-webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility;
  min-height:100vh;display:flex;flex-direction:column}
body::before{content:"";position:fixed;inset:0;pointer-events:none;z-index:-1;
  background:radial-gradient(1200px 600px at 85% -10%,color-mix(in srgb,var(--accent) 9%,transparent),transparent 70%)}
::selection{background:var(--accent);color:var(--bg)}
a{color:var(--accent-ink);text-decoration-thickness:1px;text-underline-offset:.22em;transition:color .2s var(--ease)}
a:hover{color:var(--ink)}
:focus-visible{outline:2px solid var(--accent);outline-offset:3px;border-radius:2px}
.skip{position:absolute;left:1rem;top:-3rem;z-index:100;background:var(--ink);color:var(--bg);padding:.5rem .9rem;border-radius:4px;text-decoration:none}
.skip:focus{top:1rem}

/* reading progress (scroll-driven, progressive enhancement) */
.progress{position:fixed;top:0;left:0;height:2px;width:100%;background:var(--accent);transform-origin:0 50%;transform:scaleX(0);z-index:60}
@supports (animation-timeline:scroll()){.progress{animation:grow linear both;animation-timeline:scroll(root)}}
@keyframes grow{to{transform:scaleX(1)}}

/* masthead */
.masthead{position:sticky;top:0;z-index:50;background:color-mix(in srgb,var(--bg) 82%,transparent);
  -webkit-backdrop-filter:saturate(1.4) blur(14px);backdrop-filter:saturate(1.4) blur(14px);border-bottom:1px solid var(--line)}
.masthead-in{max-width:var(--wrap);margin:0 auto;padding:.9rem var(--gut);display:flex;align-items:center;gap:1rem 2rem;flex-wrap:wrap}
.brand{font:900 clamp(1.35rem,1.2rem + .5vw,1.6rem)/1.2 var(--serif);white-space:nowrap;letter-spacing:.02em;color:var(--ink);text-decoration:none;margin-right:auto}
.brand{display:inline-flex;align-items:center;gap:.5em}
.brand-logo{width:1.4em;height:1.4em;flex:none;border-radius:50%;box-shadow:0 0 0 1px var(--line)}
.brand:hover{color:var(--accent-ink)}
nav{display:flex;gap:clamp(1rem,3vw,2.25rem)}
nav a{position:relative;color:var(--muted);text-decoration:none;font-size:clamp(1rem,.95rem + .2vw,1.1rem);font-weight:500;letter-spacing:.08em;padding:.25rem 0;white-space:nowrap}
nav a::after{content:"";position:absolute;left:0;right:0;bottom:-2px;height:1px;background:currentColor;transform:scaleX(0);transform-origin:right;transition:transform .35s var(--ease)}
nav a:hover,nav a[aria-current]{color:var(--ink)}
nav a:hover::after,nav a[aria-current]::after{transform:scaleX(1);transform-origin:left}

main{flex:1;width:100%;max-width:var(--wrap);margin:0 auto;padding:clamp(2rem,6vw,5rem) var(--gut) 4rem}
main>*{max-width:var(--read)}
main>.hero,main>.sec{max-width:none}

/* type */
h1,h2,h3,h4{font-family:var(--serif);color:var(--ink);line-height:1.3;letter-spacing:.01em;text-wrap:balance}
h1{font-weight:900;font-size:clamp(2.1rem,1.2rem + 3.6vw,4rem);line-height:1.15;margin:.2em 0 .5em}
h2{font-weight:700;font-size:clamp(1.4rem,1.1rem + 1.1vw,1.9rem);margin:2.4em 0 .8em}
h3{font-weight:700;font-size:1.25rem;margin:2em 0 .6em}
p,li{text-wrap:pretty}
strong{color:var(--ink);font-weight:700}
hr{border:0;border-top:1px solid var(--line);margin:3rem 0}

/* hero */
.hero{padding:clamp(1rem,5vw,4rem) 0 clamp(1.5rem,4vw,3rem);animation:rise .9s var(--ease) both}
.hero-lede{font:900 clamp(1.15rem,.95rem + .9vw,1.75rem)/1.45 var(--serif);color:var(--ink);letter-spacing:.01em;margin:0;max-width:none;text-wrap:balance}
.hero-rule{height:1px;background:var(--ink);margin-top:clamp(2rem,5vw,3.5rem);transform-origin:left;animation:draw 1.2s .25s var(--ease) both}

/* sections: editorial index */
.sec{display:grid;grid-template-columns:minmax(0,1fr);border-top:1px solid var(--line);padding-top:1.25rem;margin-top:clamp(2.5rem,6vw,4.5rem);animation:rise .9s var(--ease) both}
.sec:nth-of-type(2){animation-delay:.08s}.sec:nth-of-type(3){animation-delay:.16s}.sec:nth-of-type(4){animation-delay:.24s}
.sec::before{content:attr(data-n);font:500 .8rem/1 var(--mono);color:var(--accent-ink);letter-spacing:.1em}
.sec>h2{margin:.6rem 0 1rem}
.sec .more{margin:1.25rem 0 0}
@media (min-width:900px){
  .sec{grid-template-columns:4rem 16rem minmax(0,1fr);column-gap:2rem;align-items:start}
  .sec::before{grid-row:1/span 2;padding-top:.85rem}
  .sec>h2{grid-column:2;grid-row:1/span 2;margin:.35rem 0 0}
  .sec>.list,.sec>.more{grid-column:3}
}
.more a{font-weight:500;text-decoration:none;letter-spacing:.04em;border-bottom:1px solid currentColor;padding-bottom:2px}

/* entry list */
.list{list-style:none;padding:0;margin:0}
.list li{border-bottom:1px solid var(--line)}
.list li:first-child{border-top:1px solid var(--line)}
.sec .list li:first-child{border-top:0}
.list a{display:grid;grid-template-columns:auto 1fr auto;gap:.25rem 1.5rem;align-items:baseline;padding:1.05rem 0;color:var(--fg);text-decoration:none;transition:padding .35s var(--ease),color .2s}
.list .t{font:700 1.08rem/1.5 var(--serif);color:var(--ink)}
.list .arr{color:var(--accent-ink);transform:translateX(-.5rem);opacity:0;transition:transform .35s var(--ease),opacity .25s}
.list a:hover,.list a:focus-visible{padding-left:.6rem}
.list a:hover .t{color:var(--accent-ink)}
.list a:hover .arr,.list a:focus-visible .arr{transform:none;opacity:1}
.date{font:400 .85rem/1.6 var(--mono);color:var(--muted);font-variant-numeric:tabular-nums;letter-spacing:.02em}
@media (max-width:560px){.list a{grid-template-columns:1fr auto}.list .date{grid-column:1/-1}}

/* article */
.back{margin:0 0 1.5rem;font-size:.9rem}
.back a{color:var(--muted);text-decoration:none;letter-spacing:.06em}
.back a:hover{color:var(--accent-ink)}
.prose{animation:rise .8s var(--ease) both}
.prose>h1+.date{display:block;margin:-.2rem 0 2rem;padding-bottom:1.5rem;border-bottom:1px solid var(--ink)}
.prose p,.prose li{font-size:1.075rem}
.prose ul,.prose ol{padding-left:1.3em}
.prose li{margin:.3em 0}
.prose li::marker{color:var(--accent-ink)}
.warn{background:var(--warn-bg);border:0;border-left:3px solid var(--accent);padding:1rem 1.2rem;border-radius:0 6px 6px 0;font-weight:500;color:var(--ink);font-size:.95rem;line-height:1.7}
.notice{font-size:.9rem;color:var(--muted);background:var(--bg-2);padding:1rem 1.2rem;border-radius:6px}
.srcnote{font-size:.85rem;line-height:1.7;color:var(--muted);border-top:1px dashed var(--line);border-bottom:1px dashed var(--line);padding:.8rem 0;margin:1.5rem 0 2.5rem}
blockquote{margin:1rem 0 1.75rem;padding:.25rem 0 .25rem 1.1rem;border-left:2px solid var(--line);color:var(--muted);font-size:.9rem}
table{border-collapse:collapse;font-size:.9rem;display:block;overflow-x:auto;max-width:100%;margin:1.5rem 0;font-variant-numeric:tabular-nums;-webkit-overflow-scrolling:touch}
th,td{border:0;border-bottom:1px solid var(--line);padding:.55rem .9rem .55rem 0;text-align:left;vertical-align:top;white-space:nowrap}
th{font-weight:700;color:var(--ink);border-bottom:1px solid var(--ink);font-size:.82rem;letter-spacing:.04em}
tbody tr:hover td{background:var(--bg-2)}
code{font:.9em var(--mono);background:var(--bg-2);padding:.1em .35em;border-radius:3px}
img{max-width:100%;height:auto}

/* footer */
footer{border-top:1px solid var(--ink);margin-top:2rem;color:var(--muted);font-size:.875rem}
.footer-in{max-width:var(--wrap);margin:0 auto;padding:2rem var(--gut) 3rem;display:flex;flex-wrap:wrap;justify-content:space-between;gap:1rem 3rem}
.footer-in p{margin:0;max-width:40rem}
footer a{color:var(--fg);text-decoration:none;border-bottom:1px solid var(--line)}
footer .views{font:400 .8rem/1.6 var(--mono);color:var(--muted);font-variant-numeric:tabular-nums;letter-spacing:.02em;flex-basis:100%}
footer a:hover{color:var(--accent-ink);border-color:currentColor}

@keyframes rise{from{opacity:0;transform:translateY(14px)}to{opacity:1;transform:none}}
@keyframes draw{from{transform:scaleX(0)}to{transform:scaleX(1)}}
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  *,*::before,*::after{animation:none!important;transition:none!important}
  .progress{display:none}
}
@media print{:root{color-scheme:light;--bg:#fff;--bg-2:#f3f3f3;--ink:#000;--fg:#111;--muted:#444;--line:#ccc;--accent:#8a3212;--accent-ink:#8a3212;--warn-bg:#fff}
  body::before,.masthead,.progress,.skip,footer a{display:none}body{background:#fff;color:#000}}