/* ==========================================
   writing.lyforge.net — quiet reading room
   Deep charcoal ink on warm cream paper.
   Family ties to lyforge.net: Inter for UI, the LF mark, a touch of Lyforge blue.
   ========================================== */

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

:root {
  --paper: #f5efe3;        /* warm cream */
  --paper-2: #efe7d7;      /* slightly deeper cream for panels */
  --card: #faf6ee;
  --ink: #26231f;          /* deep charcoal */
  --ink-body: #3b3630;
  --muted: #6e665b;
  --faint: #9a9081;
  --rule: rgba(38, 35, 31, 0.12);
  --rule-strong: rgba(38, 35, 31, 0.22);
  --accent: #2a4db0;       /* Lyforge blue, deepened for cream */
  --accent-soft: rgba(42, 77, 176, 0.08);
  --live: #3f7d58;
  --soon: #b7791f;
  --radius: 10px;
  --max: 1080px;
  --read: 720px;
  --sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --serif: 'Newsreader', Georgia, 'Times New Roman', serif;
  --mono: 'JetBrains Mono', ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  color-scheme: light;
}

html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body {
  font-family: var(--sans); font-size: 16px; line-height: 1.65;
  color: var(--ink); background: var(--paper);
  -webkit-font-smoothing: antialiased; overflow-x: hidden;
}
a { color: var(--accent); text-decoration: none; transition: color .15s; }
a:hover { color: var(--ink); }
:focus-visible { outline: 2px solid var(--accent); outline-offset: 3px; border-radius: 4px; }
::selection { background: rgba(42, 77, 176, .18); }
[hidden] { display: none !important; }

.container { width: 100%; max-width: var(--max); margin: 0 auto; padding: 0 1.5rem; }

.skip-link { position: absolute; left: -9999px; top: .5rem; z-index: 200; background: var(--ink); color: var(--paper); padding: .5rem 1rem; border-radius: 8px; font-weight: 600; }
.skip-link:focus { left: .5rem; color: var(--paper); }

/* ---------- Header ---------- */
header.site {
  position: sticky; top: 0; z-index: 100;
  background: rgba(245, 239, 227, 0.82);
  backdrop-filter: blur(10px); -webkit-backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--rule);
}
.header-inner { display: flex; align-items: center; justify-content: space-between; height: 60px; gap: 1rem; }
.logo { display: inline-flex; align-items: center; gap: .6rem; color: var(--ink); font-weight: 700; letter-spacing: -.01em; font-size: 1.05rem; }
.logo:hover { color: var(--ink); }
.logo img { width: 26px; height: 26px; display: block; }
.logo .slash { color: var(--faint); font-weight: 400; }
.logo .sub { font-family: var(--serif); font-style: italic; font-weight: 500; font-size: 1.15rem; color: var(--accent); }
nav.primary { display: flex; align-items: center; gap: .25rem; }
nav.primary a { font-size: .88rem; font-weight: 500; color: var(--muted); padding: .4rem .75rem; border-radius: 8px; transition: color .15s, background .15s; }
nav.primary a:hover { color: var(--ink); background: rgba(38,35,31,.05); }
nav.primary a.btn { color: var(--paper); margin-left: .35rem; }

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: .45rem;
  padding: .72rem 1.35rem; border-radius: 999px; font-weight: 600; font-size: .9rem; white-space: nowrap;
  transition: background .2s, border-color .2s, color .2s, transform .2s;
}
.btn svg { width: 16px; height: 16px; flex-shrink: 0; }
.btn-sm { padding: .42rem .95rem; font-size: .85rem; }
.btn-primary { background: var(--ink); color: var(--paper); }
.btn-primary:hover { background: #000; color: var(--paper); transform: translateY(-1px); }
.btn-ghost { border: 1px solid var(--rule-strong); color: var(--ink); background: transparent; }
.btn-ghost:hover { border-color: var(--ink); color: var(--ink); transform: translateY(-1px); }
.btn[aria-disabled="true"] { opacity: .5; pointer-events: none; }

/* ---------- Hero ---------- */
.hero { position: relative; padding: clamp(4.5rem, 11vw, 8rem) 0 clamp(3rem, 7vw, 5rem); overflow: hidden; isolation: isolate; }
.hero::before { /* faint ruled paper */
  content: ''; position: absolute; inset: 0; z-index: -1;
  background-image: linear-gradient(rgba(38,35,31,.06) 1px, transparent 1px);
  background-size: 100% 36px;
  -webkit-mask-image: radial-gradient(ellipse 80% 75% at 30% 40%, #000 25%, transparent 75%);
          mask-image: radial-gradient(ellipse 80% 75% at 30% 40%, #000 25%, transparent 75%);
}
.kicker { display: inline-flex; align-items: center; gap: .55rem; font: 500 .76rem/1 var(--mono); letter-spacing: .1em; text-transform: uppercase; color: var(--muted); margin-bottom: 1.4rem; }
.kicker .dot { width: 7px; height: 7px; border-radius: 50%; background: var(--soon); }
.kicker.is-live .dot { background: var(--live); }
.hero h1 {
  font-family: var(--serif); font-weight: 400;
  font-size: clamp(2.8rem, 7.5vw, 5.1rem); line-height: 1.02; letter-spacing: -.02em;
  margin-bottom: 1.5rem; color: var(--ink);
}
.hero h1 em { font-style: italic; color: var(--accent); }
.lede { font-family: var(--serif); font-size: clamp(1.2rem, 2.1vw, 1.4rem); line-height: 1.55; color: var(--ink-body); max-width: 40ch; margin-bottom: 2.2rem; }
.hero-links { display: flex; flex-wrap: wrap; gap: .75rem; align-items: center; }
.hero-note { font: 400 .78rem/1.4 var(--mono); color: var(--faint); margin-top: 1.1rem; }

/* ---------- Sections ---------- */
.section { padding: clamp(3rem, 7vw, 4.5rem) 0; }
.section + .section { padding-top: 0; }
.section-head { display: flex; align-items: baseline; justify-content: space-between; gap: 1rem; flex-wrap: wrap; margin-bottom: 1.25rem; padding-bottom: 1rem; border-bottom: 1px solid var(--rule); }
.label { font: 500 .74rem/1 var(--mono); letter-spacing: .1em; text-transform: uppercase; color: var(--muted); display: block; margin-bottom: .6rem; }
.section h2 { font-family: var(--serif); font-weight: 400; font-size: clamp(1.9rem, 3.6vw, 2.5rem); letter-spacing: -.01em; line-height: 1.15; color: var(--ink); }
.section-head .aside { color: var(--muted); font-size: .92rem; }
.section-head .aside:hover { color: var(--ink); }

/* ---------- Letters (posts) ---------- */
.posts, .empty { max-width: var(--read); }
.posts { list-style: none; }
.post { border-bottom: 1px solid var(--rule); }
.post a {
  display: grid; gap: .35rem 1.5rem; grid-template-columns: minmax(0, 1fr);
  padding: 1.6rem .25rem; color: var(--ink); border-radius: 8px; transition: background .2s;
}
.post a:hover { background: rgba(38,35,31,.035); color: var(--ink); }
.post.has-image a { grid-template-columns: minmax(0, 1fr) 132px; }
.post time { font: 400 .74rem/1.4 var(--mono); color: var(--faint); letter-spacing: .04em; text-transform: uppercase; }
.post h3 { font-family: var(--serif); font-weight: 500; font-size: 1.55rem; line-height: 1.22; transition: color .2s; }
.post a:hover h3 { color: var(--accent); }
.post p { font-family: var(--serif); color: var(--ink-body); font-size: 1.08rem; line-height: 1.55; }
.post .thumb { grid-row: 1 / span 3; grid-column: 2; align-self: center; width: 132px; aspect-ratio: 16 / 10; object-fit: cover; border-radius: 6px; border: 1px solid var(--rule); background: var(--paper-2); filter: saturate(.9); }
.post .read { font-size: .84rem; font-weight: 600; color: var(--accent); margin-top: .4rem; }

.post.skeleton .bar { display: block; height: .8rem; border-radius: 4px; background: linear-gradient(90deg, var(--paper-2), #e6dcc8, var(--paper-2)); background-size: 200% 100%; animation: shimmer 1.4s linear infinite; }
.post.skeleton .bar + .bar { margin-top: .6rem; }
.post.skeleton .w30 { width: 30%; } .post.skeleton .w70 { width: 70%; height: 1.2rem; } .post.skeleton .w90 { width: 90%; }
.post.skeleton > div { padding: 1.6rem .25rem; }
@keyframes shimmer { to { background-position: -200% 0; } }

.empty { padding: 2rem 0 .5rem; }
.empty h3 { font-family: var(--serif); font-weight: 400; font-style: italic; font-size: 1.6rem; margin-bottom: .5rem; }
.empty p { font-family: var(--serif); font-size: 1.1rem; color: var(--ink-body); max-width: 46ch; }

/* ---------- Questions ---------- */
.questions { list-style: none; display: grid; grid-template-columns: minmax(0, 1fr); border-top: 0; }
@media (min-width: 820px) { .questions { grid-template-columns: repeat(2, minmax(0, 1fr)); column-gap: 3rem; } }
.question { padding: 1.6rem 0; border-bottom: 1px solid var(--rule); display: grid; align-content: start; grid-template-columns: 2.4rem minmax(0, 1fr); column-gap: .5rem; }
.question .num { font-family: var(--serif); font-style: italic; color: var(--accent); font-size: 1.1rem; line-height: 1.6; grid-row: span 2; }
.question h3 { font-family: var(--serif); font-weight: 500; font-size: 1.45rem; line-height: 1.25; color: var(--ink); margin-bottom: .4rem; }
.question p { font-family: var(--serif); color: var(--muted); font-size: 1.05rem; line-height: 1.5; }
.aside-note { margin-top: 1.75rem; font-family: var(--serif); font-style: italic; color: var(--muted); font-size: 1.05rem; }
.aside-note a { font-style: normal; font-family: var(--sans); font-weight: 600; font-size: .95rem; }

/* ---------- Subscribe ---------- */
.subscribe {
  border: 1px solid var(--rule-strong); border-radius: 16px;
  padding: clamp(1.75rem, 4vw, 2.75rem);
  background: var(--card);
  display: grid; gap: 1.5rem; align-items: center;
}
@media (min-width: 860px) { .subscribe { grid-template-columns: 1.15fr 1fr; } }
.subscribe h2 { margin-bottom: .6rem; }
.subscribe p { font-family: var(--serif); color: var(--ink-body); font-size: 1.1rem; line-height: 1.55; }
.subscribe .fine { font: 400 .76rem/1.5 var(--mono); color: var(--faint); margin-top: .9rem; }
.embed { width: 100%; min-height: 150px; border: 1px solid var(--rule); border-radius: 10px; background: #fff; }
.sub-actions { display: flex; flex-wrap: wrap; gap: .75rem; }

/* ---------- Footer ---------- */
footer { border-top: 1px solid var(--rule); padding: 2.25rem 0 2.75rem; color: var(--faint); font-size: .86rem; }
.footer-inner { display: flex; align-items: center; justify-content: space-between; gap: 1rem 2rem; flex-wrap: wrap; }
.maker { color: var(--muted); }
.maker a { color: var(--ink); font-weight: 600; }
.maker a:hover { color: var(--accent); }
.footer-links { display: flex; gap: 1.25rem; flex-wrap: wrap; }
.footer-links a { color: var(--muted); font-weight: 500; }
.footer-links a:hover { color: var(--ink); }

/* ---------- 404 ---------- */
.notfound { min-height: calc(100vh - 60px - 110px); display: flex; align-items: center; }
.notfound .code { font: 400 clamp(4.5rem, 16vw, 7.5rem)/1 var(--serif); font-style: italic; letter-spacing: -.03em; color: var(--accent); margin-bottom: 1rem; }
.prompt {
  display: inline-flex; align-items: center; gap: .5rem;
  font: 500 .8rem/1 var(--mono); color: var(--muted);
  border: 1px solid var(--rule); background: var(--card);
  padding: .5rem .8rem; border-radius: 999px; margin-bottom: 1.75rem;
}
.prompt .p { color: var(--live); }
.prompt .cursor { width: .5em; height: 1em; background: var(--accent); display: inline-block; animation: blink 1.1s steps(1) infinite; }
@keyframes blink { 50% { opacity: 0; } }

/* ---------- Small screens ---------- */
@media (max-width: 640px) {
  .container { padding: 0 1rem; }
  nav.primary .nav-optional { display: none; }
  .hero-links .btn { flex: 1 1 100%; }
  .post.has-image a { grid-template-columns: minmax(0, 1fr) 84px; }
  .post .thumb { width: 84px; }
  .post h3 { font-size: 1.3rem; }
  .question h3 { font-size: 1.25rem; }
  .footer-inner { flex-direction: column; align-items: flex-start; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation: none !important; transition: none !important; }
}