/* Ridgeline & Larch — demo site by Kolbrant.
   Palette from the work itself: charred-fir ink, cream paper, honey larch.
   Type: Marcellus (display) + Newsreader (text). */

:root {
  --ink: #221d16;
  --ink-2: #322a20;
  --ink-soft: #57503f;
  --paper: #f5f1e8;
  --paper-2: #ece5d5;
  --line: #d8cfba;
  --larch: #b5793a;        /* honey timber — surfaces, large accents */
  --larch-deep: #8a5420;   /* AA text accent on paper */
  --larch-bright: #cf9a58; /* accent on ink */
  --cream: #f3ecdd;
  --display: "Marcellus", "Georgia", serif;
  --text: "Newsreader", "Georgia", serif;
  --measure: 62ch;
}

* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } }

body {
  font-family: var(--text);
  font-size: 1.125rem;
  line-height: 1.65;
  color: var(--ink);
  background: var(--paper);
  -webkit-font-smoothing: antialiased;
}

img { max-width: 100%; height: auto; display: block; }
a { color: var(--larch-deep); text-decoration-thickness: 1px; text-underline-offset: 3px; }
a:hover { color: var(--ink); }

h1, h2, h3 { font-family: var(--display); font-weight: 400; line-height: 1.12; letter-spacing: .005em; }
h1 { font-size: clamp(2.1rem, 5.2vw, 3.9rem); }
h2 { font-size: clamp(1.7rem, 3.6vw, 2.7rem); }
h3 { font-size: clamp(1.25rem, 2.2vw, 1.6rem); }

.kicker {
  font-family: var(--text);
  font-weight: 600;
  font-size: .78rem;
  letter-spacing: .22em;
  text-transform: uppercase;
  color: var(--larch-deep);
  margin-bottom: .9rem;
}
.on-ink .kicker, .panel .kicker { color: var(--larch-bright); }

.wrap { max-width: 72rem; margin: 0 auto; padding: 0 clamp(1.1rem, 4vw, 2.5rem); }

.skip {
  position: absolute; left: -9999px; top: 0; background: var(--ink); color: var(--cream);
  padding: .6rem 1rem; z-index: 100;
}
.skip:focus { left: 0; }

/* ---------- header ---------- */
.site-head {
  background: var(--ink);
  color: var(--cream);
  position: relative;
  z-index: 5;
}
.site-head .wrap {
  display: flex; align-items: center; justify-content: space-between;
  gap: 1rem; flex-wrap: wrap; padding-top: .9rem; padding-bottom: .9rem;
}
.brand { text-decoration: none; color: var(--cream); line-height: 1.15; }
.brand b { font-family: var(--display); font-weight: 400; font-size: 1.35rem; letter-spacing: .02em; display: block; }
.brand b .amp { color: var(--larch-bright); }
.brand small {
  display: block; font-size: .68rem; letter-spacing: .18em; text-transform: uppercase;
  color: #b8ad97; margin-top: .15rem;
}
.site-nav { display: flex; gap: clamp(.9rem, 2.5vw, 1.7rem); align-items: center; flex-wrap: wrap; }
.site-nav a {
  color: var(--cream); text-decoration: none; font-size: .95rem;
  border-bottom: 1px solid transparent; padding-bottom: 2px;
}
.site-nav a:hover, .site-nav a[aria-current="page"] { border-bottom-color: var(--larch-bright); color: var(--cream); }
.site-nav a.nav-cta {
  border: 1px solid var(--larch-bright); color: var(--larch-bright);
  padding: .45rem .95rem; border-bottom-width: 1px;
}
.site-nav a.nav-cta:hover { background: var(--larch-bright); color: var(--ink); }

/* ---------- the four-seasons scroll story ---------- */
.story { position: relative; background: var(--ink); }

.story-stage {
  position: sticky; top: 0;
  height: 100vh; height: 100svh;
  margin-bottom: -100vh; margin-bottom: -100svh;
  overflow: hidden;
}
.slayer { position: absolute; inset: 0; opacity: 0; transition: opacity 1.1s ease; }
.slayer img { width: 100%; height: 100%; object-fit: cover; }

/* Default first frame (also no-JS until noscript override): summer */
.l-summer { opacity: 1; }

/* Live crossfade, driven by [data-season] set from IntersectionObserver */
.story-live .l-summer { opacity: 0; }
.story-live[data-season="summer"] .l-summer,
.story-live[data-season="fall"]   .l-fall,
.story-live[data-season="winter"] .l-winter,
.story-live[data-season="spring"] .l-spring { opacity: 1; }

/* Season index — functional chrome, right edge, desktop only */
.season-ix {
  position: absolute; right: clamp(1rem, 3vw, 2.4rem); top: 50%;
  transform: translateY(-50%);
  display: none; flex-direction: column; gap: 1.1rem;
  font-family: var(--text); font-weight: 600; font-size: .7rem;
  letter-spacing: .2em; text-transform: uppercase; text-align: right;
}
.season-ix span {
  color: rgba(243, 236, 221, .55);
  transition: color .5s ease;
  text-shadow: 0 1px 8px rgba(0,0,0,.55);
}
.story-live[data-season="summer"] .season-ix .ix-summer,
.story-live[data-season="fall"]   .season-ix .ix-fall,
.story-live[data-season="winter"] .season-ix .ix-winter,
.story-live[data-season="spring"] .season-ix .ix-spring { color: var(--larch-bright); }
@media (min-width: 64em) { .story-live .season-ix { display: flex; } }

.chapter {
  position: relative; z-index: 2;
  min-height: 100vh; min-height: 100svh;
  display: flex; align-items: center;
  padding: clamp(4.5rem, 10vh, 7rem) clamp(1.1rem, 5vw, 3.2rem);
}
.chapter.ch-first { align-items: flex-end; padding-bottom: clamp(3rem, 9vh, 6rem); }
.chapter.ch-last { padding-bottom: clamp(7rem, 16vh, 11rem); }

.panel {
  max-width: 36rem;
  background: rgba(24, 20, 14, .82);
  color: var(--cream);
  padding: clamp(1.6rem, 3.5vw, 2.6rem) clamp(1.4rem, 3.5vw, 2.6rem);
  border-top: 3px solid var(--larch);
}
.panel h1, .panel h2 { color: #faf6ec; margin-bottom: .9rem; }
.panel p { color: #e9e1cf; }
.panel p + p { margin-top: .9rem; }
.panel .ch-when {
  margin-top: 1.3rem; padding-top: 1rem;
  border-top: 1px solid rgba(243, 236, 221, .25);
  font-size: .82rem; font-weight: 600; letter-spacing: .18em; text-transform: uppercase;
  color: var(--larch-bright);
}
.chapter:nth-of-type(odd) { justify-content: flex-start; }
.ch-fall, .ch-spring { justify-content: flex-end; }
@media (max-width: 48em) { .chapter { justify-content: center !important; } }
/* keep panels clear of the season index on wide screens */
@media (min-width: 64em) { .chapter { padding-right: 11rem; } }

.scroll-hint {
  margin-top: 1.2rem; font-size: .85rem; color: #cfc5ad; font-style: italic;
}

/* Reduced motion: hold the finished spring scene, no fades */
@media (prefers-reduced-motion: reduce) {
  .slayer { transition: none; }
  .story .l-summer, .story-live .l-summer,
  .story-live[data-season="summer"] .l-summer,
  .story-live[data-season="fall"] .l-fall,
  .story-live[data-season="winter"] .l-winter { opacity: 0; }
  .story .l-spring { opacity: 1; }
  .season-ix { display: none !important; }
}

/* ---------- shared section rhythm ---------- */
.sect { padding: clamp(3.5rem, 8vw, 6.5rem) 0; }
.sect-tight { padding: clamp(2.5rem, 5vw, 4rem) 0; }
.on-ink { background: var(--ink); color: var(--cream); }
.on-ink h2, .on-ink h3 { color: #faf6ec; }
.on-paper2 { background: var(--paper-2); }

.lede { font-size: clamp(1.15rem, 2vw, 1.35rem); max-width: var(--measure); }
.prose { max-width: var(--measure); }
.prose p + p { margin-top: 1rem; }

/* Editorial intro: statement + two columns */
.intro-grid { display: grid; gap: clamp(1.5rem, 4vw, 4rem); grid-template-columns: 1fr; }
@media (min-width: 56em) { .intro-grid { grid-template-columns: 5fr 6fr; } }
.intro-grid h2 { font-size: clamp(1.9rem, 3.4vw, 2.9rem); }
.factrow {
  display: flex; flex-wrap: wrap; gap: clamp(1.2rem, 4vw, 3rem);
  margin-top: clamp(2rem, 5vw, 3.5rem); padding-top: 1.6rem;
  border-top: 1px solid var(--line);
}
.factrow div { min-width: 9rem; }
.factrow b { font-family: var(--display); font-weight: 400; font-size: 1.9rem; display: block; color: var(--larch-deep); }
.factrow span { font-size: .85rem; letter-spacing: .06em; color: var(--ink-soft); }

/* Featured work: asymmetric */
.work-grid { display: grid; gap: clamp(1.2rem, 3vw, 2rem); grid-template-columns: 1fr; }
@media (min-width: 56em) {
  .work-grid { grid-template-columns: 7fr 5fr; align-items: start; }
  .work-b { margin-top: clamp(2rem, 6vw, 5rem); }
}
.work-item { text-decoration: none; color: inherit; display: block; }
.work-item figcaption { padding-top: .8rem; }
.work-item figcaption b { font-family: var(--display); font-weight: 400; font-size: 1.3rem; display: block; }
.work-item figcaption span { font-size: .9rem; color: var(--ink-soft); }
.work-item img { transition: opacity .4s ease; }
.work-item:hover img { opacity: .88; }
.work-item:hover figcaption b { color: var(--larch-deep); }

/* Pull quote */
.pull { max-width: 46rem; margin: 0 auto; text-align: center; }
.pull blockquote {
  font-family: var(--text); font-style: italic;
  font-size: clamp(1.35rem, 2.6vw, 1.85rem); line-height: 1.45;
}
.pull cite { display: block; margin-top: 1.2rem; font-style: normal; font-size: .9rem; letter-spacing: .12em; text-transform: uppercase; color: var(--ink-soft); }

/* CTA band */
.cta-band { text-align: center; }
.cta-band h2 { margin-bottom: 1rem; }
.cta-band p { max-width: 40rem; margin: 0 auto 1.8rem; color: #d8cfba; }
.btn {
  display: inline-block; font-family: var(--text); font-weight: 600; font-size: 1rem;
  background: var(--larch); color: var(--ink); text-decoration: none;
  padding: .85rem 1.8rem; border: 1px solid var(--larch);
}
.btn:hover { background: var(--larch-bright); border-color: var(--larch-bright); color: var(--ink); }
.btn-ghost { background: transparent; color: var(--larch-bright); }
.btn-ghost:hover { background: var(--larch-bright); color: var(--ink); }
.cta-alt { margin-top: 1.1rem; font-size: .95rem; color: #b8ad97; }
.cta-alt a { color: var(--cream); }

/* ---------- interior page hero ---------- */
.page-hero { position: relative; color: var(--cream); background: var(--ink); overflow: hidden; }
.page-hero .ph-img { position: absolute; inset: 0; }
.page-hero .ph-img img { width: 100%; height: 100%; object-fit: cover; opacity: .55; }
.page-hero .wrap { position: relative; padding-top: clamp(4rem, 10vw, 8rem); padding-bottom: clamp(4rem, 10vw, 8rem); }
.page-hero .kicker { color: var(--larch-bright); text-shadow: 0 1px 10px rgba(0,0,0,.6); }
.page-hero h1 { max-width: 22ch; text-shadow: 0 2px 18px rgba(0,0,0,.5); }
.page-hero .lede { color: #efe8d7; text-shadow: 0 1px 12px rgba(0,0,0,.55); margin-top: 1rem; }

/* ---------- process month bands ---------- */
.mband { display: grid; gap: 1.4rem; grid-template-columns: 1fr; padding: clamp(2rem, 4vw, 3rem) 0; border-top: 1px solid var(--line); }
@media (min-width: 56em) { .mband { grid-template-columns: 16rem 1fr; gap: 3rem; } }
.mband:first-of-type { border-top: 0; }
.mband .mwhen b { font-family: var(--display); font-weight: 400; font-size: clamp(1.6rem, 2.6vw, 2.1rem); display: block; color: var(--larch-deep); line-height: 1.15; }
.mband .mwhen span { font-size: .82rem; font-weight: 600; letter-spacing: .18em; text-transform: uppercase; color: var(--ink-soft); }
.mband h2 { margin-bottom: .7rem; font-size: clamp(1.45rem, 2.6vw, 1.9rem); }
.mband ul { margin: 1rem 0 0 1.1rem; }
.mband li + li { margin-top: .35rem; }
.season-band { position: relative; }
.season-band img { width: 100%; height: clamp(16rem, 44vw, 26rem); object-fit: cover; }
.season-band figcaption {
  position: absolute; left: 0; bottom: 0; right: 0;
  padding: 2.5rem clamp(1.1rem, 4vw, 2.5rem) 1rem;
  background: linear-gradient(transparent, rgba(24,20,14,.78));
  color: var(--cream); font-size: .9rem; letter-spacing: .1em; text-transform: uppercase;
}

/* ---------- portfolio case studies ---------- */
.case { display: grid; gap: clamp(1.4rem, 3vw, 2.5rem); grid-template-columns: 1fr; padding: clamp(2.6rem, 6vw, 4.5rem) 0; border-top: 1px solid var(--line); }
.case:first-of-type { border-top: 0; }
@media (min-width: 60em) {
  .case { grid-template-columns: 7fr 5fr; align-items: center; }
  .case.case-flip .case-txt { order: -1; }
}
.case h2 { margin-bottom: .35rem; }
.case .where { color: var(--ink-soft); font-style: italic; margin-bottom: 1rem; }
.specs { display: grid; grid-template-columns: repeat(2, 1fr); gap: .9rem 1.4rem; margin: 1.4rem 0; padding: 1.2rem 0; border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.specs b { font-family: var(--display); font-weight: 400; font-size: 1.15rem; display: block; }
.specs span { font-size: .78rem; font-weight: 600; letter-spacing: .16em; text-transform: uppercase; color: var(--ink-soft); }

/* ---------- craft ---------- */
.craft-grid { display: grid; gap: clamp(1.5rem, 4vw, 3.5rem); grid-template-columns: 1fr; align-items: center; }
@media (min-width: 56em) { .craft-grid { grid-template-columns: 1fr 1fr; } }
.species { list-style: none; margin-top: 1.2rem; }
.species li { padding: 1.1rem 0; border-top: 1px solid var(--line); }
.species b { font-family: var(--display); font-weight: 400; font-size: 1.25rem; }
.species p { margin-top: .3rem; font-size: 1rem; color: var(--ink-2); }

/* joint ledger */
.joints { list-style: none; counter-reset: joint; max-width: 46rem; }
.joints li { counter-increment: joint; display: grid; grid-template-columns: 3.2rem 1fr; gap: 1rem; padding: 1.3rem 0; border-top: 1px solid var(--line); }
.joints li::before {
  content: counter(joint, decimal-leading-zero);
  font-family: var(--display); font-size: 1.5rem; color: var(--larch-deep);
}
.joints b { font-family: var(--display); font-weight: 400; font-size: 1.2rem; display: block; margin-bottom: .2rem; }

/* ---------- about ---------- */
.principals { display: grid; gap: clamp(1.5rem, 4vw, 3rem); grid-template-columns: 1fr; }
@media (min-width: 52em) { .principals { grid-template-columns: 1fr 1fr; } }
.principal { border-top: 3px solid var(--larch); padding-top: 1.2rem; }
.principal h3 { margin-bottom: .2rem; }
.principal .role { font-size: .82rem; font-weight: 600; letter-spacing: .16em; text-transform: uppercase; color: var(--ink-soft); display: block; margin-bottom: .8rem; }

/* ---------- contact ---------- */
.contact-grid { display: grid; gap: clamp(2rem, 5vw, 4rem); grid-template-columns: 1fr; }
@media (min-width: 56em) { .contact-grid { grid-template-columns: 7fr 5fr; } }
.f-group { margin-bottom: 1.25rem; }
.f-group label { display: block; font-weight: 600; font-size: .95rem; margin-bottom: .35rem; }
.f-group input, .f-group select, .f-group textarea {
  width: 100%; font: inherit; font-size: 1rem; color: var(--ink);
  background: #fffdf8; border: 1px solid #b9ae95; padding: .7rem .8rem;
}
.f-group input:focus, .f-group select:focus, .f-group textarea:focus {
  outline: 2px solid var(--larch); outline-offset: 1px;
}
.f-group .err { display: none; color: #8c2f1b; font-size: .9rem; margin-top: .3rem; }
.f-group.invalid .err { display: block; }
.f-group.invalid input, .f-group.invalid select, .f-group.invalid textarea { border-color: #8c2f1b; }
.f-row { display: grid; gap: 0 1.2rem; grid-template-columns: 1fr; }
@media (min-width: 40em) { .f-row { grid-template-columns: 1fr 1fr; } }
.contact-aside h2 { font-size: 1.5rem; margin-bottom: .8rem; }
.contact-aside dl div { padding: .9rem 0; border-top: 1px solid var(--line); }
.contact-aside dt { font-size: .78rem; font-weight: 600; letter-spacing: .16em; text-transform: uppercase; color: var(--ink-soft); }
.contact-aside dd { margin-top: .2rem; }

/* ---------- footer ---------- */
.site-foot { background: var(--ink); color: #cbc1aa; font-size: .95rem; }
.site-foot .wrap { padding-top: clamp(2.5rem, 5vw, 4rem); padding-bottom: 2rem; }
.foot-grid { display: grid; gap: 2rem; grid-template-columns: 1fr; padding-bottom: 2rem; border-bottom: 1px solid #3d362b; }
@media (min-width: 52em) { .foot-grid { grid-template-columns: 2fr 1fr 1fr; } }
.site-foot h3 { color: var(--cream); font-size: 1.2rem; margin-bottom: .6rem; }
.site-foot a { color: var(--cream); }
.site-foot a:hover { color: var(--larch-bright); }
.foot-nav { list-style: none; }
.foot-nav li + li { margin-top: .4rem; }
.foot-note { padding-top: 1.5rem; font-size: .85rem; color: #a2977f; }
.foot-note a { color: #cbc1aa; }

/* ---------- reveal-on-scroll (progressive enhancement) ---------- */
.reveal { opacity: 1; transform: none; }
html.js .reveal { opacity: 0; transform: translateY(22px); transition: opacity .6s ease, transform .6s cubic-bezier(.22,.61,.36,1); }
html.js .reveal.in { opacity: 1; transform: none; }
@media (prefers-reduced-motion: reduce) {
  html.js .reveal { opacity: 1; transform: none; transition: none; }
}

/* stagger helpers */
html.js .reveal.d1 { transition-delay: .09s; }
html.js .reveal.d2 { transition-delay: .18s; }