/* Open the Letter -- visual system
   Editorial luxury: paper ground, forest ink, bronze accents.
   Typography and spacing carry the luxury; photography carries the calm.
   No gradients-as-decoration, no glass, no glow. */

:root {
  --paper: #FAF8F2;
  --paper-deep: #F4EFE4;
  --ink: #1C2420;
  --forest: #24402E;
  --forest-deep: #16281D;
  --bronze: #96762F;
  --bronze-soft: #B39359;
  --hairline: #E4DECF;
  --muted: #59635C;
  --serif: "Fraunces", Georgia, serif;
  --sans: "Instrument Sans", -apple-system, "Helvetica Neue", Arial, sans-serif;
  --measure: 66ch;
  --pagew: 1120px;
}

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

html { scroll-behavior: smooth; }
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
}

body {
  background: var(--paper);
  color: var(--ink);
  font-family: var(--sans);
  font-size: 1.0625rem;
  line-height: 1.75;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

::selection { background: var(--forest); color: var(--paper); }

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

a { color: var(--forest); text-decoration: none; }
p a, li a, .prose a {
  border-bottom: 1px solid var(--bronze-soft);
  transition: border-color .3s, color .3s;
}
p a:hover, li a:hover, .prose a:hover { color: var(--bronze); }

/* ---------- type scale ---------- */
h1, h2, h3, .display {
  font-family: var(--serif);
  font-weight: 420;
  color: var(--forest-deep);
  letter-spacing: -0.012em;
  text-wrap: balance;
}
h1 { font-size: clamp(2.4rem, 5.6vw, 4.4rem); line-height: 1.06; font-variation-settings: "opsz" 100; }
h2 { font-size: clamp(1.7rem, 3.2vw, 2.5rem); line-height: 1.16; }
h3 { font-size: clamp(1.22rem, 2vw, 1.5rem); line-height: 1.3; }

.kicker {
  font-family: var(--sans);
  font-size: .72rem;
  font-weight: 600;
  letter-spacing: .22em;
  text-transform: uppercase;
  color: var(--bronze);
  margin-bottom: 1.4rem;
}

.lede {
  font-family: var(--serif);
  font-size: clamp(1.18rem, 2vw, 1.42rem);
  line-height: 1.55;
  font-weight: 380;
  color: var(--ink);
  max-width: var(--measure);
}

.prose { max-width: var(--measure); }
.prose p + p { margin-top: 1.35em; }
.prose h2 { margin: 2.6em 0 .8em; }
.prose h3 { margin: 2.1em 0 .6em; }
.prose ul, .prose ol { margin: 1.2em 0 1.2em 1.3em; }
.prose li + li { margin-top: .55em; }

.smallcaps {
  font-size: .72rem; font-weight: 600;
  letter-spacing: .18em; text-transform: uppercase;
}

/* ---------- layout ---------- */
.wrap { max-width: var(--pagew); margin: 0 auto; padding: 0 clamp(1.25rem, 4vw, 3rem); }
section { padding: clamp(4rem, 9vw, 8.5rem) 0; }
.section-tight { padding: clamp(2.6rem, 5vw, 4.5rem) 0; }
.rule { border: 0; border-top: 1px solid var(--hairline); }

/* ---------- header ---------- */
header.site {
  border-bottom: 1px solid var(--hairline);
  background: var(--paper);
}
.site-inner {
  display: flex; align-items: baseline; justify-content: space-between;
  gap: 2rem; padding: 1.5rem clamp(1.25rem, 4vw, 3rem);
  max-width: var(--pagew); margin: 0 auto; flex-wrap: wrap;
}
.wordmark {
  font-family: var(--serif); font-size: 1.34rem; font-weight: 500;
  font-style: italic; color: var(--forest-deep); letter-spacing: .01em;
  border: 0;
}
.wordmark .mono { color: var(--bronze); font-style: normal; }
nav.site-nav { display: flex; gap: clamp(1rem, 2.6vw, 2.2rem); flex-wrap: wrap; }
nav.site-nav a {
  font-size: .8rem; font-weight: 550; letter-spacing: .14em;
  text-transform: uppercase; color: var(--muted);
  padding: .55rem 0; border: 0; transition: color .3s;
}
nav.site-nav a:hover, nav.site-nav a[aria-current="page"] { color: var(--forest-deep); }

/* ---------- hero ---------- */
.hero { position: relative; overflow: hidden; background: var(--forest-deep); }
.hero-media {
  position: absolute; inset: -12% 0; z-index: 0;
  will-change: transform;
}
.hero-media img, .hero-media video, .hero-media picture, .hero-media .ph {
  width: 100%; height: 100%; object-fit: cover;
}
.hero-media picture img { width: 100%; height: 100%; }
/* keep the lantern in frame on wide crops of the storm loop */
.hero-media video { object-position: center 38%; }
/* seam crossfade: the twin copy sits on top and breathes in/out */
.hero-media video.hero-twin {
  position: absolute; inset: 0;
}
.hero-media video { transition: opacity 1.1s ease; }
.hero-media video.hero-faded { opacity: 0; }
.hero-scrim {
  position: absolute; inset: 0; z-index: 1;
  background:
    linear-gradient(to top, rgba(250,248,242,.97) 0%, rgba(250,248,242,.9) 32%, rgba(250,248,242,.5) 62%, rgba(250,248,242,.08) 100%);
}
.hero-content {
  position: relative; z-index: 2;
  padding: clamp(6rem, 16vw, 13rem) 0 clamp(3rem, 7vw, 5.5rem);
}
.hero h1 { color: var(--forest-deep); max-width: 15ch; }
.hero .lede { margin-top: 1.6rem; }
.hero-panel .kicker { color: var(--bronze); }
.hero-dark .kicker { color: var(--bronze-soft); }
/* utilities (inline styles are forbidden by the CSP) */
.visually-hidden {
  position: absolute; width: 1px; height: 1px; overflow: hidden;
  clip: rect(0 0 0 0); white-space: nowrap;
}
.h1-page { font-size: clamp(2.1rem, 4.5vw, 3.4rem); }
.h2-quiet { font-size: clamp(1.4rem, 2.6vw, 1.9rem); }
.pt0 { padding-top: 0; }
.sec-flush { padding-top: clamp(2rem, 4vw, 3.5rem); }
.mt-s { margin-top: .8rem; }
.mt-m { margin-top: 1.2rem; }
.mt-f { margin-top: 1.6rem; }
.mt-l { margin-top: 2.6rem; }
.mt-xl { margin-top: 4rem; }
.spacer-l { height: clamp(3rem, 6vw, 5rem); }
.alias-line { color: var(--muted); margin-top: .8rem; font-size: .95rem; }
.hint-muted { color: var(--muted); }
.back-link { margin-top: 2.6rem; }

/* ---------- buttons: engraved, never glowing ---------- */
.btn {
  display: inline-block;
  font-family: var(--sans);
  font-size: .78rem; font-weight: 600;
  letter-spacing: .16em; text-transform: uppercase;
  color: var(--forest-deep);
  background: transparent;
  border: 1px solid var(--forest);
  padding: 1.02rem 2.1rem;
  cursor: pointer;
  transition: background .35s, color .35s, border-color .35s;
}
.btn:hover { background: var(--forest); color: var(--paper); }
.btn:active { transform: translateY(1px); }
.btn-solid { background: var(--forest); color: var(--paper); }
.btn-solid:hover { background: var(--forest-deep); border-color: var(--forest-deep); }
.btn:focus-visible, a:focus-visible, input:focus-visible, textarea:focus-visible {
  outline: 2px solid var(--bronze); outline-offset: 3px;
}

/* ---------- translator ---------- */
.translator {
  background: var(--paper);
  border: 1px solid var(--hairline);
  border-top: 3px solid var(--bronze);
  box-shadow: 0 30px 60px -35px rgba(28, 36, 32, 0.35);
  padding: clamp(1.8rem, 4vw, 3.2rem);
  max-width: 860px;
}
.translator-lookup { display: flex; gap: .9rem; flex-wrap: wrap; }
.translator input[type="text"] {
  flex: 1 1 260px;
  font-family: var(--serif); font-size: clamp(1.25rem, 2.4vw, 1.7rem);
  color: var(--ink); background: transparent;
  border: 0; border-bottom: 1px solid var(--forest);
  border-radius: 0; padding: .55rem .1rem;
  min-height: 52px;
}
.translator input[type="text"]::placeholder { color: #9AA29B; font-style: italic; }
.translator .hint { font-size: .86rem; color: var(--muted); margin-top: 1rem; }

.dropzone {
  margin-top: 1.6rem;
  border: 1px dashed var(--bronze-soft);
  padding: 1.5rem 1.6rem;
  color: var(--muted); font-size: .95rem;
  transition: background .3s, border-color .3s;
  cursor: pointer;
}
.dropzone.dragover { background: var(--paper-deep); border-color: var(--bronze); }
.dropzone strong { color: var(--forest-deep); font-weight: 600; }
.private-line {
  display: flex; align-items: center; gap: .6rem;
  margin-top: 1.3rem; font-size: .84rem; color: var(--forest);
  font-weight: 550;
}
.private-line .seal {
  width: 14px; height: 14px; flex: 0 0 auto;
  border: 1px solid var(--bronze); transform: rotate(45deg);
  background: var(--paper);
}

/* result card */
.result { margin-top: 2.4rem; border-top: 1px solid var(--hairline); padding-top: 2.2rem; }
.result .notice-code {
  font-family: var(--serif); font-size: 2rem; font-weight: 500;
  color: var(--forest-deep);
}
.result .notice-title { font-family: var(--serif); font-size: 1.25rem; color: var(--bronze); margin-top: .2rem; }
.result-block { margin-top: 1.9rem; }
.result-block .smallcaps { color: var(--bronze); display: block; margin-bottom: .55rem; }
.result-block ul { margin: .4rem 0 0 1.2rem; }
.result-block li + li { margin-top: .45rem; }
.saying {
  font-family: var(--serif); font-size: 1.12rem; line-height: 1.6;
  color: var(--ink); border-left: 2px solid var(--bronze-soft);
  padding-left: 1.3rem; font-weight: 380;
}

.chip-deadline {
  display: inline-block;
  border: 1px solid var(--bronze);
  color: var(--forest-deep); background: var(--paper-deep);
  font-size: .82rem; font-weight: 600; letter-spacing: .06em;
  padding: .5rem 1rem; margin-bottom: .8rem;
}

.provenance {
  margin-top: 2.2rem; padding-top: 1.2rem;
  border-top: 1px solid var(--hairline);
  font-size: .8rem; color: var(--muted);
}

/* reading progress for OCR */
.reading { margin-top: 1.2rem; font-size: .9rem; color: var(--forest); }
.reading .bar {
  height: 2px; background: var(--hairline); margin-top: .6rem; position: relative;
}
.reading .bar i {
  position: absolute; left: 0; top: 0; bottom: 0; background: var(--bronze);
  width: 0%; transition: width .3s;
}

/* ---------- cards / library ---------- */
.grid { display: grid; gap: 1.4rem; }
.grid-3 { grid-template-columns: repeat(auto-fill, minmax(280px, 1fr)); }
.card {
  border: 1px solid var(--hairline);
  background: var(--paper);
  padding: 1.9rem;
  transition: border-color .3s;
  display: block;
}
a.card:hover { border-color: var(--bronze-soft); }
.card .code { font-family: var(--serif); font-size: 1.3rem; color: var(--forest-deep); }
.card .t { color: var(--muted); font-size: .93rem; margin-top: .45rem; line-height: 1.5; }

.group-head { margin: 3.4rem 0 1.4rem; }
.group-head:first-of-type { margin-top: 0; }
.group-head p { color: var(--muted); max-width: var(--measure); margin-top: .5rem; }

/* notice index as ledger rows */
.ledger { border-top: 1px solid var(--hairline); }
.ledger a {
  display: flex; gap: 1.6rem; align-items: baseline;
  padding: 1.05rem .4rem; border: 0;
  border-bottom: 1px solid var(--hairline);
  transition: background .25s;
}
.ledger a:hover { background: var(--paper-deep); }
.ledger .code {
  font-family: var(--serif); font-size: 1.12rem; color: var(--forest-deep);
  flex: 0 0 7.2rem;
}
.ledger .t { color: var(--muted); font-size: .95rem; }

/* ---------- bridge band ---------- */
.bridge {
  background: var(--forest-deep);
  color: var(--paper);
}
.bridge h2 { color: var(--paper); max-width: 22ch; }
.bridge p { color: #C9D2C9; max-width: var(--measure); margin-top: 1.2rem; }
.bridge .btn {
  margin-top: 2.4rem; color: var(--paper); border-color: var(--bronze-soft);
}
.bridge .btn:hover { background: var(--bronze); border-color: var(--bronze); color: var(--forest-deep); }
.bridge .kicker { color: var(--bronze-soft); }

/* ---------- steps ---------- */
.steps { display: grid; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); gap: clamp(1.6rem, 4vw, 3.4rem); }
.step .n {
  font-family: var(--serif); font-size: 1rem; color: var(--bronze);
  border-top: 1px solid var(--bronze-soft); padding-top: 1.1rem;
  letter-spacing: .1em;
}
.step h3 { margin-top: .7rem; }
.step p { color: var(--muted); font-size: .97rem; margin-top: .6rem; }

/* ---------- timeline ---------- */
.timeline { position: relative; margin-top: 3rem; }
.timeline::before {
  content: ""; position: absolute; left: 7px; top: 6px; bottom: 6px;
  width: 1px; background: var(--hairline);
}
.tl-stage { position: relative; padding: 0 0 3.2rem 3rem; }
.tl-stage::before {
  content: ""; position: absolute; left: 0; top: .55em;
  width: 15px; height: 15px; background: var(--paper);
  border: 1px solid var(--bronze); transform: rotate(45deg);
}
.tl-stage h3 { color: var(--forest-deep); }
.tl-stage .when { color: var(--bronze); font-size: .78rem; font-weight: 600; letter-spacing: .16em; text-transform: uppercase; margin-bottom: .5rem; }
.tl-stage p { color: var(--muted); max-width: var(--measure); margin-top: .55rem; }
.tl-notices { margin-top: .9rem; display: flex; flex-wrap: wrap; gap: .55rem; }
.tl-notices a {
  border: 1px solid var(--hairline); padding: .38rem .85rem;
  font-family: var(--serif); font-size: .95rem; color: var(--forest-deep);
  transition: border-color .3s, background .3s; min-height: 44px;
  display: inline-flex; align-items: center;
}
.tl-notices a:hover { border-color: var(--bronze-soft); background: var(--paper-deep); }

/* ---------- myths ---------- */
.myth { border-top: 1px solid var(--hairline); padding: 2.6rem 0; }
.myth .m {
  font-family: var(--serif); font-size: 1.3rem; font-style: italic;
  color: var(--muted); max-width: var(--measure);
}
.myth .r { margin-top: 1.1rem; max-width: var(--measure); }
.myth .r strong { color: var(--forest-deep); }
.myth .label { color: var(--bronze); }

/* ---------- form ---------- */
form.consult { max-width: 640px; }
.field { margin-top: 1.9rem; }
.field label {
  display: block; font-size: .78rem; font-weight: 600;
  letter-spacing: .16em; text-transform: uppercase; color: var(--forest);
  margin-bottom: .55rem;
}
.field .opt { color: var(--muted); text-transform: none; letter-spacing: .02em; font-weight: 500; }
.field input, .field textarea {
  width: 100%; font-family: var(--sans); font-size: 1.05rem;
  color: var(--ink); background: var(--paper);
  border: 1px solid var(--hairline); border-radius: 0;
  padding: .95rem 1.05rem; min-height: 52px;
  transition: border-color .3s;
}
.field input:focus, .field textarea:focus { border-color: var(--forest); outline: none; }
.field textarea { min-height: 150px; resize: vertical; }
.field .note { font-size: .84rem; color: var(--muted); margin-top: .5rem; }
.hp { position: absolute; left: -9999px; top: -9999px; height: 0; overflow: hidden; }
.form-status { margin-top: 1.4rem; font-size: .95rem; }
.form-status.ok { color: var(--forest); }
.form-status.err { color: #7A4A2B; }

/* ---------- footer ---------- */
footer.site {
  border-top: 1px solid var(--hairline);
  background: var(--paper-deep);
  padding: clamp(3rem, 6vw, 4.5rem) 0;
  font-size: .88rem; color: var(--muted);
}
footer.site .cols { display: grid; grid-template-columns: 1fr; gap: 2.2rem; }
@media (min-width: 760px) { footer.site .cols { grid-template-columns: 2fr 1fr; } }
.disclaimer { max-width: 72ch; line-height: 1.7; }
.disclaimer strong { color: var(--forest); font-weight: 600; }
footer.site nav { display: flex; flex-direction: column; gap: .55rem; }
footer.site nav a { color: var(--muted); border: 0; padding: .2rem 0; }
footer.site nav a:hover { color: var(--forest-deep); }
.firmline { margin-top: 2.2rem; font-family: var(--serif); font-style: italic; color: var(--forest); }

/* ---------- motion ---------- */
.fade-up { opacity: 0; transform: translateY(18px); transition: opacity .7s ease-out, transform .7s ease-out; }
.fade-up.in { opacity: 1; transform: none; }
@media (prefers-reduced-motion: reduce) {
  .fade-up { opacity: 1; transform: none; transition: none; }
  .hero-media { transform: none !important; }
  * { transition-duration: .01ms !important; animation: none !important; }
}

/* ---------- page hero (interior) ---------- */
.page-hero { position: relative; background: var(--forest-deep); overflow: hidden; }
.page-hero .hero-content { padding: clamp(4.5rem, 10vw, 8rem) 0 clamp(2.6rem, 5vw, 4rem); }

/* ---------- small screens ---------- */
@media (max-width: 640px) {
  .site-inner { padding-top: 1.1rem; padding-bottom: 1.1rem; }
  nav.site-nav { gap: .9rem 1.2rem; }
  nav.site-nav a { padding: .65rem .15rem; }
  .translator { padding: 1.5rem 1.25rem; }
  .btn { width: 100%; text-align: center; }
  .ledger .code { flex-basis: 5.4rem; font-size: 1rem; }
}