/* Canopy & Beam — demo site by Kolbrant.
   Dusk palette drawn from the photography: night blue, lantern amber, cream.
   Type: Newsreader (display serif) / Archivo (text) / Space Mono (altitude marks). */

:root {
  --night: #0c141c;
  --night-2: #111c27;
  --seam: #070c12;
  --cream: #f0e9db;
  --mist: #aab9c5;
  --lantern: #e2a558;
  --lantern-deep: #8a5f2b;
  --rose: #d99287;
  --line: rgba(240, 233, 219, 0.16);
  --panel: rgba(7, 12, 18, 0.78);
  --serif: "Newsreader", Georgia, serif;
  --sans: "Archivo", "Helvetica Neue", sans-serif;
  --mono: "Space Mono", "Courier New", monospace;
  --wrap: 72rem;
  --ease: cubic-bezier(0.22, 0.61, 0.21, 1);
}

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

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

body {
  font-family: var(--sans);
  font-size: 1.0625rem;
  line-height: 1.65;
  color: var(--cream);
  background: var(--night);
  -webkit-font-smoothing: antialiased;
}

img { max-width: 100%; height: auto; display: block; }

h1, h2, h3 {
  font-family: var(--serif);
  font-weight: 500;
  line-height: 1.08;
  text-wrap: balance;
  color: var(--cream);
}

p { max-width: 62ch; }
a { color: var(--cream); text-underline-offset: 3px; text-decoration-thickness: 1px; }
a:hover { color: var(--lantern); }

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

.skip {
  position: absolute; left: -999px; top: 0; z-index: 200;
  background: var(--lantern); color: var(--night); padding: 0.6rem 1rem; text-decoration: none;
}
.skip:focus { left: 0; }

/* ---------- header ---------- */

.site-head {
  position: fixed; top: 0; left: 0; right: 0; z-index: 100;
  background: linear-gradient(to bottom, rgba(7, 12, 18, 0.82), rgba(7, 12, 18, 0));
  transition: background-color 300ms var(--ease);
}
.site-head.solid, .site-head.scrolled { background-color: rgba(7, 12, 18, 0.92); }
.site-head .bar {
  display: flex; align-items: center; justify-content: space-between; gap: 1rem;
  padding-top: 0.9rem; padding-bottom: 0.9rem;
}
.brand { text-decoration: none; font-family: var(--serif); font-size: 1.3rem; line-height: 1.1; }
.brand .amp { color: var(--lantern); font-style: italic; }
.brand small {
  display: block; font-family: var(--mono); font-size: 0.6rem; letter-spacing: 0.14em;
  text-transform: uppercase; color: var(--mist); margin-top: 0.15rem;
}
.site-nav { display: flex; align-items: center; gap: clamp(0.9rem, 2vw, 1.7rem); }
.site-nav a { text-decoration: none; font-size: 0.95rem; color: var(--cream); }
.site-nav a[aria-current="page"] { color: var(--lantern); }
.site-nav .cta {
  border: 1px solid var(--lantern); color: var(--lantern);
  padding: 0.45rem 0.95rem; white-space: nowrap;
}
.site-nav .cta:hover { background: var(--lantern); color: var(--night); }

.nav-toggle { display: none; }
@media (max-width: 920px) {
  .site-nav { display: none; }
  .nav-toggle { display: block; position: relative; }
  .nav-toggle summary {
    list-style: none; cursor: pointer; font-family: var(--mono); font-size: 0.75rem;
    letter-spacing: 0.14em; text-transform: uppercase; color: var(--cream);
    border: 1px solid var(--line); padding: 0.45rem 0.85rem;
  }
  .nav-toggle summary::-webkit-details-marker { display: none; }
  .nav-toggle[open] summary { color: var(--lantern); border-color: var(--lantern); }
  .nav-toggle .menu {
    position: absolute; right: 0; top: calc(100% + 0.6rem); min-width: 13rem;
    background: var(--seam); border: 1px solid var(--line); padding: 0.6rem 0;
  }
  .nav-toggle .menu a {
    display: block; padding: 0.55rem 1.1rem; text-decoration: none; font-size: 1rem;
  }
  .nav-toggle .menu a[aria-current="page"] { color: var(--lantern); }
}

/* ---------- buttons ---------- */

.btn {
  display: inline-block; text-decoration: none; font-weight: 500; font-size: 1rem;
  padding: 0.8rem 1.5rem; border: 1px solid var(--lantern);
}
.btn.fill { background: var(--lantern); color: #171006; }
.btn.fill:hover { background: var(--cream); border-color: var(--cream); color: #171006; }
.btn.ghost { color: var(--cream); border-color: var(--line); }
.btn.ghost:hover { border-color: var(--lantern); color: var(--lantern); }

/* ---------- altitude marks ---------- */

.alt-mark {
  font-family: var(--mono); font-size: 0.72rem; letter-spacing: 0.18em;
  text-transform: uppercase; color: var(--lantern); display: flex; align-items: center; gap: 0.7rem;
}
.alt-mark::before { content: ""; width: 2rem; height: 1px; background: var(--lantern); flex: none; }

.alt-hud {
  position: fixed; left: clamp(1.1rem, 4vw, 2.5rem); bottom: 1.2rem; z-index: 90;
  font-family: var(--mono); font-size: 0.68rem; letter-spacing: 0.16em; text-transform: uppercase;
  color: var(--cream); background: rgba(7, 12, 18, 0.6); border-left: 2px solid var(--lantern);
  padding: 0.35rem 0.7rem; opacity: 0; transform: translateY(6px);
  transition: opacity 400ms var(--ease), transform 400ms var(--ease);
  pointer-events: none;
}
.alt-hud.show { opacity: 1; transform: none; }

/* ---------- the climb ---------- */

.climb { position: relative; isolation: isolate; }
.climb-media { position: sticky; top: 0; height: 100vh; overflow: hidden; }
.climb-media img {
  width: 100%; height: 100%; object-fit: cover; object-position: center;
}
/* on wide screens, bias the trunk segment toward the platform underside */
@media (min-aspect-ratio: 1/1) {
  .climb:nth-of-type(2) .climb-media img { object-position: center 30%; }
}
/* junction shadow bands: every segment fades from deep canopy shadow at its
   leading (top) edge and darkens slightly at its foot, so pixel-discontinuous
   segments meet inside a shared near-black band instead of butt-jointing */
.climb-media::after {
  content: ""; position: absolute; inset: 0; pointer-events: none;
  background:
    linear-gradient(to bottom,
      var(--seam) 0%, rgba(7, 12, 18, 0.72) 9%, rgba(7, 12, 18, 0) 30%,
      rgba(7, 12, 18, 0) 72%, rgba(7, 12, 18, 0.65) 100%);
}
.climb:first-of-type .climb-media::after {
  background:
    linear-gradient(to bottom,
      rgba(7, 12, 18, 0.5) 0%, rgba(7, 12, 18, 0) 22%,
      rgba(7, 12, 18, 0) 62%, rgba(7, 12, 18, 0.7) 100%);
}
.climb-body { position: relative; z-index: 2; margin-top: -100vh; }

/* slow settle: the photo drifts down to rest as its section arrives */
.js .climb-media img {
  transform: scale(1.07) translateY(-2.5%);
  transition: transform 1600ms var(--ease);
}
.js .climb.seen .climb-media img { transform: none; }
@media (prefers-reduced-motion: reduce) {
  .js .climb-media img { transform: none; transition: none; }
}

.climb-block { min-height: 100svh; display: flex; align-items: center; padding-top: 5.5rem; padding-bottom: 3rem; }
.climb-block > .wrap { width: 100%; }
.climb-block.tall { min-height: 115svh; }
.climb-block.bottom { align-items: flex-end; padding-bottom: 12svh; }
.climb-block.top { align-items: flex-start; padding-top: 22svh; }

.panel {
  background: var(--panel); border: 1px solid var(--line);
  padding: clamp(1.5rem, 3.5vw, 2.6rem); max-width: 34rem;
}
.panel h2 { font-size: clamp(1.7rem, 3.4vw, 2.5rem); margin: 0.8rem 0 0.9rem; }
.panel p + p { margin-top: 0.9rem; }
.panel .more { margin-top: 1.3rem; }
.panel .more a { color: var(--lantern); text-decoration: none; border-bottom: 1px solid var(--lantern-deep); padding-bottom: 2px; }
.panel .more a:hover { color: var(--cream); border-color: var(--cream); }
.push-right { margin-left: auto; }

/* hero */
.hero-block { align-items: flex-end; padding-bottom: 13svh; min-height: 100svh; }
.hero-copy h1 {
  font-size: clamp(2.5rem, 6.2vw, 4.6rem); max-width: 13ch; margin: 1rem 0 1.1rem;
  text-shadow: 0 2px 30px rgba(0, 0, 0, 0.55);
}
.hero-copy .lede {
  font-size: clamp(1.05rem, 1.6vw, 1.2rem); max-width: 44ch; color: var(--cream);
  text-shadow: 0 1px 18px rgba(0, 0, 0, 0.7);
}
.hero-copy .actions { display: flex; flex-wrap: wrap; gap: 0.8rem; margin-top: 1.6rem; }
.scroll-cue {
  margin-top: 2.8rem; font-family: var(--mono); font-size: 0.68rem;
  letter-spacing: 0.18em; text-transform: uppercase; color: var(--mist);
  display: flex; align-items: center; gap: 0.8rem;
}
.scroll-cue::after {
  content: ""; width: 1px; height: 3.2rem; background: linear-gradient(to bottom, var(--lantern), transparent);
}

/* stat band riding over the trunk photo */
.stat-band { width: 100%; }
.stat-band .stats {
  display: grid; grid-template-columns: repeat(3, 1fr); gap: 1px;
  background: var(--line); border: 1px solid var(--line); max-width: 52rem;
}
.stat-band .stats > div { background: var(--panel); padding: 1.3rem 1.4rem; }
.stat-band b {
  display: block; font-family: var(--serif); font-weight: 500;
  font-size: clamp(1.5rem, 3vw, 2.2rem); color: var(--lantern); line-height: 1.15;
}
.stat-band span { font-family: var(--mono); font-size: 0.68rem; letter-spacing: 0.12em; text-transform: uppercase; color: var(--mist); }
@media (max-width: 640px) { .stat-band .stats { grid-template-columns: 1fr; } }

/* quote riding on the bridge photo */
.climb-quote { max-width: 30rem; background: var(--panel); border-left: 2px solid var(--lantern); padding: 1.5rem 1.8rem; }
.climb-quote p { font-family: var(--serif); font-style: italic; font-size: 1.25rem; line-height: 1.45; }
.climb-quote footer { margin-top: 0.8rem; font-family: var(--mono); font-size: 0.7rem; letter-spacing: 0.14em; text-transform: uppercase; color: var(--mist); }

/* finale */
.finale { text-align: center; width: 100%; padding-bottom: 10svh; }
.finale .inner {
  display: inline-block; padding: 2.2rem clamp(1.2rem, 4vw, 3.2rem);
  background: radial-gradient(closest-side, rgba(7, 12, 18, 0.72), rgba(7, 12, 18, 0));
}
.finale .alt-mark { display: inline-flex; background: rgba(7, 12, 18, 0.6); padding: 0.4rem 0.8rem; }
.finale h2 { font-size: clamp(2.6rem, 6.5vw, 4.8rem); font-style: italic; text-shadow: 0 2px 26px rgba(0, 0, 0, 0.75); }
.finale p { margin: 1rem auto 1.7rem; max-width: 40ch; text-shadow: 0 1px 14px rgba(0, 0, 0, 0.8); }

/* ---------- ground sections (solid background) ---------- */

.ground { position: relative; z-index: 3; background: var(--night); border-top: 1px solid var(--line); }
.section { padding: clamp(3.5rem, 8vw, 6.5rem) 0; }
.section-head { margin-bottom: clamp(2rem, 4vw, 3.2rem); }
.section-head h2 { font-size: clamp(1.9rem, 4vw, 2.9rem); margin-top: 0.8rem; max-width: 22ch; }
.section-head .kicker {
  font-family: var(--mono); font-size: 0.72rem; letter-spacing: 0.18em;
  text-transform: uppercase; color: var(--lantern);
}
.section-head p.sub { color: var(--mist); margin-top: 0.8rem; }

/* builds strip on home + builds page teasers */
.build-strip { display: grid; grid-template-columns: 1.25fr 1fr 1fr; gap: clamp(1rem, 2.4vw, 2rem); align-items: start; }
@media (max-width: 900px) { .build-strip { grid-template-columns: 1fr; } }
.build-card { text-decoration: none; display: block; }
.build-card img { border: 1px solid var(--line); }
.build-card h3 { font-size: 1.35rem; margin: 0.9rem 0 0.25rem; }
.build-card .spec { font-family: var(--mono); font-size: 0.7rem; letter-spacing: 0.12em; text-transform: uppercase; color: var(--mist); }
.build-card:hover h3 { color: var(--lantern); }

/* ---------- case studies (builds page) ---------- */

.case { display: grid; grid-template-columns: 1.15fr 0.85fr; gap: clamp(1.6rem, 4vw, 3.5rem); align-items: center; padding: clamp(2.6rem, 6vw, 4.5rem) 0; border-top: 1px solid var(--line); }
.case:first-of-type { border-top: 0; }
.case.flip .case-media { order: 2; }
@media (max-width: 860px) { .case, .case.flip .case-media { display: block; order: 0; } .case .case-copy { margin-top: 1.4rem; } }
.case-media img { border: 1px solid var(--line); }
.case-copy h2 { font-size: clamp(1.7rem, 3.4vw, 2.4rem); margin: 0.7rem 0 0.9rem; }
.case-copy p + p { margin-top: 0.9rem; }
.spec-table { margin-top: 1.4rem; border-top: 1px solid var(--line); }
.spec-table div { display: flex; justify-content: space-between; gap: 1rem; padding: 0.55rem 0; border-bottom: 1px solid var(--line); font-size: 0.92rem; }
.spec-table dt { font-family: var(--mono); font-size: 0.68rem; letter-spacing: 0.12em; text-transform: uppercase; color: var(--mist); padding-top: 0.2rem; }
.spec-table dd { text-align: right; }

/* ---------- photo hero for interior pages ---------- */

.page-hero { position: relative; min-height: 62svh; display: flex; align-items: flex-end; overflow: hidden; }
.page-hero > img { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; }
.page-hero::after {
  content: ""; position: absolute; inset: 0;
  background: linear-gradient(to bottom, rgba(7, 12, 18, 0.55) 0%, rgba(7, 12, 18, 0.05) 40%, rgba(7, 12, 18, 0.82) 100%);
}
.page-hero .wrap { position: relative; z-index: 2; width: 100%; padding-bottom: 2.6rem; padding-top: 9rem; }
.page-hero h1 { font-size: clamp(2.3rem, 5.5vw, 4rem); margin-top: 0.9rem; max-width: 16ch; text-shadow: 0 2px 24px rgba(0, 0, 0, 0.6); }
.page-hero .lede { margin-top: 0.9rem; max-width: 50ch; text-shadow: 0 1px 14px rgba(0, 0, 0, 0.7); }

/* text-only page head (about, contact, privacy) */
.page-head { padding: 9.5rem 0 1rem; }
.page-head h1 { font-size: clamp(2.3rem, 5vw, 3.6rem); margin-top: 0.9rem; max-width: 18ch; }
.page-head .lede { color: var(--mist); margin-top: 1rem; max-width: 54ch; }

/* ---------- prose & split layouts ---------- */

.prose { max-width: 62ch; }
.prose h2 { font-size: clamp(1.5rem, 3vw, 2.1rem); margin: 2.4rem 0 0.8rem; }
.prose h3 { font-size: 1.2rem; margin: 1.8rem 0 0.5rem; }
.prose p + p { margin-top: 0.9rem; }
.prose ul { margin: 0.9rem 0 0.9rem 1.2rem; }
.prose li + li { margin-top: 0.45rem; }
.prose .note { font-size: 0.92rem; color: var(--mist); border-left: 2px solid var(--lantern-deep); padding-left: 1rem; margin-top: 1.4rem; }

.split { display: grid; grid-template-columns: 1fr 1fr; gap: clamp(1.8rem, 4.5vw, 4rem); align-items: start; }
@media (max-width: 860px) { .split { grid-template-columns: 1fr; } }
.split figure img { border: 1px solid var(--line); }
.split figcaption { font-family: var(--mono); font-size: 0.7rem; letter-spacing: 0.1em; text-transform: uppercase; color: var(--mist); margin-top: 0.7rem; }

/* numbered process rows (engineering page) */
.load-path { border-top: 1px solid var(--line); margin-top: 1rem; }
.load-path > div { display: grid; grid-template-columns: 5.5rem 1fr; gap: 1.2rem; padding: 1.6rem 0; border-bottom: 1px solid var(--line); }
.load-path .num { font-family: var(--mono); color: var(--lantern); font-size: 0.8rem; letter-spacing: 0.12em; padding-top: 0.35rem; }
.load-path h3 { font-size: 1.25rem; margin-bottom: 0.4rem; }
.load-path p { color: var(--cream); }
@media (max-width: 560px) { .load-path > div { grid-template-columns: 1fr; gap: 0.3rem; } }

/* quotes */
.quote-row { display: grid; grid-template-columns: 1fr 1fr; gap: clamp(1.4rem, 3vw, 2.6rem); }
@media (max-width: 760px) { .quote-row { grid-template-columns: 1fr; } }
blockquote.plain { border-left: 2px solid var(--lantern); padding-left: 1.4rem; }
blockquote.plain p { font-family: var(--serif); font-style: italic; font-size: 1.22rem; line-height: 1.5; }
blockquote.plain footer { margin-top: 0.7rem; font-family: var(--mono); font-size: 0.7rem; letter-spacing: 0.14em; text-transform: uppercase; color: var(--mist); }

/* ---------- CTA band ---------- */

.cta-band { border-top: 1px solid var(--line); background: var(--night-2); }
.cta-band .inner { padding: clamp(2.8rem, 6vw, 4.5rem) 0; display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 1.6rem; }
.cta-band h2 { font-size: clamp(1.7rem, 3.4vw, 2.5rem); max-width: 20ch; }
.cta-band .tel { display: block; margin-top: 0.6rem; font-family: var(--serif); font-size: 1.3rem; text-decoration: none; color: var(--lantern); }

/* ---------- forms ---------- */

.consult { max-width: 38rem; }
.f-group { margin-bottom: 1.2rem; }
.f-group label { display: block; font-family: var(--mono); font-size: 0.7rem; letter-spacing: 0.14em; text-transform: uppercase; color: var(--mist); margin-bottom: 0.45rem; }
.f-group input, .f-group select, .f-group textarea {
  width: 100%; background: var(--night-2); border: 1px solid var(--line); color: var(--cream);
  font: inherit; padding: 0.75rem 0.9rem;
}
.f-group input:focus, .f-group select:focus, .f-group textarea:focus { outline: 2px solid var(--lantern); outline-offset: 1px; border-color: var(--lantern); }
.f-group .err { display: none; color: var(--rose); font-size: 0.85rem; margin-top: 0.35rem; }
.f-group.invalid .err { display: block; }
.f-group.invalid input, .f-group.invalid select, .f-group.invalid textarea { border-color: var(--rose); }
.f-row { display: grid; grid-template-columns: 1fr 1fr; gap: 1rem; }
@media (max-width: 560px) { .f-row { grid-template-columns: 1fr; } }

/* ---------- footer ---------- */

.site-foot { border-top: 1px solid var(--line); background: var(--seam); position: relative; z-index: 3; }
.foot-grid { display: grid; grid-template-columns: 1.4fr 1fr 1fr; gap: clamp(1.6rem, 4vw, 3rem); padding: clamp(2.6rem, 5vw, 4rem) 0 2rem; }
@media (max-width: 760px) { .foot-grid { grid-template-columns: 1fr; } }
.foot-grid h3 { font-family: var(--mono); font-size: 0.7rem; font-weight: 400; letter-spacing: 0.16em; text-transform: uppercase; color: var(--mist); margin-bottom: 0.9rem; }
.foot-grid a { display: block; text-decoration: none; padding: 0.2rem 0; color: var(--cream); font-size: 0.95rem; }
.foot-grid a:hover { color: var(--lantern); }
.foot-brand b { font-family: var(--serif); font-weight: 500; font-size: 1.25rem; display: block; margin-bottom: 0.5rem; }
.foot-brand p { font-size: 0.92rem; color: var(--mist); max-width: 34ch; }
.foot-brand .tel { display: inline-block; margin-top: 0.9rem; color: var(--lantern); }
.foot-legal { border-top: 1px solid var(--line); padding: 1.1rem 0 1.6rem; font-size: 0.82rem; color: var(--mist); display: flex; flex-wrap: wrap; gap: 0.4rem 1.6rem; justify-content: space-between; }
.foot-legal a { color: var(--mist); }

/* ---------- reveals ---------- */

.js .rv { opacity: 0; transform: translateY(18px); }
.js .rv.in { opacity: 1; transform: none; transition: opacity 650ms var(--ease), transform 650ms var(--ease); }
.js .rv.d2.in { transition-delay: 100ms; }
.js .rv.d3.in { transition-delay: 200ms; }
@media (prefers-reduced-motion: reduce) {
  .js .rv { opacity: 1; transform: none; transition: none; }
  .alt-hud { transition: none; }
}

/* small screens: keep climb panels comfortable */
@media (max-width: 560px) {
  .panel { max-width: none; }
  .hero-copy h1 { font-size: 2.15rem; }
  .alt-hud { font-size: 0.6rem; left: auto; right: 1rem; }
}