/* ==========================================================================
   Clerestory — Nordic architecture template · archesign.studio
   1. Tokens  2. Base  3. Header  4. Components  5. Pages  6. Footer  7. Responsive
   ========================================================================== */

/* 1. Tokens ---------------------------------------------------------------- */
:root {
  --snow: #f7f7f4;
  --birch: #ece6db;
  --pine: #2f4a3e;
  --fjord: #8ea3ad;
  --ink: #22272a;
  --muted: #6d7579;
  --sun: #e7c86e;

  --font-sans: "Albert Sans", "Segoe UI", Arial, sans-serif;
  --font-serif: "Instrument Serif", Georgia, serif;

  --radius: 22px;
  --gutter: clamp(16px, 3vw, 40px);
  --max: 1360px;
  --space: clamp(88px, 12vw, 176px);
  --shadow: 0 30px 60px -40px rgba(34, 39, 42, .35);
  --ease: cubic-bezier(.2, .8, .2, 1);
}

/* 2. Base ------------------------------------------------------------------ */
*, *::before, *::after { box-sizing: border-box; }
[hidden] { display: none !important; }
html { -webkit-text-size-adjust: 100%; }
body { margin: 0; background: var(--snow); color: var(--ink); font: 300 18px/1.7 var(--font-sans); -webkit-font-smoothing: antialiased; }
img { display: block; max-width: 100%; height: auto; }
a { color: inherit; text-decoration: none; }
p { margin: 0 0 1.1em; }
h1, h2, h3, h4 { font-weight: 400; margin: 0; line-height: 1.08; letter-spacing: -0.025em; }
h4 { font-size: 15px; font-weight: 600; letter-spacing: 0; margin-bottom: 8px; }
em { font-family: var(--font-serif); font-style: italic; font-weight: 400; letter-spacing: -0.01em; }
:focus-visible { outline: 2px solid var(--pine); outline-offset: 3px; border-radius: 6px; }
::selection { background: var(--sun); color: var(--ink); }
.skip { position: absolute; left: -999px; top: 8px; background: var(--pine); color: #fff; padding: 8px 12px; z-index: 100; }
.skip:focus { left: 8px; }
.wrap { width: 100%; max-width: var(--max); margin: 0 auto; padding: 0 var(--gutter); }
.section { padding: var(--space) 0; }
.eyebrow { font-size: 13px; font-weight: 500; letter-spacing: .08em; text-transform: uppercase; color: var(--pine); margin: 0 0 18px; display: inline-flex; align-items: center; gap: 10px; }
.eyebrow::before { content: ""; width: 8px; height: 8px; border-radius: 50%; background: var(--sun); }
.muted { color: var(--muted); }
.h-xl { font-size: clamp(50px, 7.6vw, 120px); line-height: 1; letter-spacing: -0.04em; }
.h-l { font-size: clamp(38px, 4.8vw, 72px); }
.h-m { font-size: clamp(28px, 3vw, 44px); }

/* 3. Header ---------------------------------------------------------------- */
.site-header { position: sticky; top: 0; z-index: 50; background: rgba(247, 247, 244, .96); transition: box-shadow .3s; }
.scrolled .site-header { box-shadow: 0 1px 0 rgba(34, 39, 42, .08); }
.header-row { display: flex; align-items: center; justify-content: space-between; height: 84px; }
.logo { display: inline-flex; align-items: baseline; gap: 8px; font-weight: 600; font-size: 21px; letter-spacing: -0.02em; }
.logo-mark { width: 14px; height: 14px; border-radius: 4px; background: var(--pine); display: inline-block; position: relative; top: 1px; box-shadow: inset 0 -5px 0 var(--sun); }
.logo-sub { font-weight: 300; color: var(--muted); }
.site-nav { display: flex; align-items: center; gap: 8px; }
.site-nav a { padding: 10px 16px; border-radius: 999px; font-size: 15px; font-weight: 400; transition: background .25s; }
.site-nav a:hover { background: var(--birch); }
.site-nav a[aria-current="page"] { background: var(--birch); font-weight: 500; }
.site-nav .nav-cta { background: var(--pine); color: #fff; margin-left: 8px; }
.site-nav .nav-cta:hover, .site-nav .nav-cta[aria-current="page"] { background: var(--ink); }
.menu-btn { display: none; }

/* 4. Components ------------------------------------------------------------ */
.btn { display: inline-flex; align-items: center; gap: 10px; padding: 16px 28px; border-radius: 999px; background: var(--pine); color: #fff; font: 500 16px var(--font-sans); border: 0; cursor: pointer; transition: background .25s, transform .25s var(--ease); }
.btn:hover { background: var(--ink); transform: translateY(-2px); }
.btn--ghost { background: transparent; color: var(--ink); box-shadow: inset 0 0 0 1px rgba(34, 39, 42, .25); }
.btn--ghost:hover { background: var(--birch); color: var(--ink); }
.btn--light { background: #fff; color: var(--pine); }
.btn--light:hover { background: var(--sun); color: var(--ink); }
.rounded { border-radius: var(--radius); overflow: hidden; background: var(--birch); }
.rounded img { width: 100%; aspect-ratio: var(--ratio, 4 / 3); object-fit: cover; transition: transform 1.2s var(--ease); }
a:hover .rounded img { transform: scale(1.03); }
.chip { display: inline-block; padding: 5px 12px; border-radius: 999px; background: var(--birch); font-size: 13px; font-weight: 500; margin: 0 6px 6px 0; }

/* reveal */
.js .reveal { opacity: 0; transform: translateY(24px); transition: opacity 1.1s var(--ease), transform 1.1s var(--ease); }
.js .reveal.is-in { opacity: 1; transform: none; }

/* 5. Pages ----------------------------------------------------------------- */
/* hero: full-bleed drawing with floating card */
.hero { padding-top: clamp(24px, 3vw, 40px); }
.hero-media { position: relative; border-radius: calc(var(--radius) * 1.4); overflow: hidden; background: linear-gradient(#dfeaee, var(--snow)); }
.hero-media img { width: 100%; aspect-ratio: 2 / 1; object-fit: cover; mix-blend-mode: multiply; }
.hero-card { position: absolute; left: clamp(16px, 3vw, 40px); bottom: clamp(16px, 3vw, 40px); max-width: 620px; background: rgba(247, 247, 244, .94); border-radius: var(--radius); padding: clamp(24px, 3.4vw, 48px); box-shadow: var(--shadow); }
.hero-card h1 { font-size: clamp(40px, 5.4vw, 84px); line-height: 1; letter-spacing: -0.04em; }
.hero-card p { margin: 20px 0 26px; color: var(--muted); }
.hero-card .actions { display: flex; gap: 10px; flex-wrap: wrap; }
.sunbeam { position: absolute; top: 0; right: 12%; width: 38%; height: 100%; background: linear-gradient(200deg, rgba(231, 200, 110, .45), transparent 60%); clip-path: polygon(30% 0, 70% 0, 100% 100%, 0 100%); pointer-events: none; }

/* lead statement */
.statement { display: grid; grid-template-columns: 1fr 2fr; gap: var(--gutter); }
.statement p.big { font-size: clamp(26px, 3vw, 44px); line-height: 1.25; letter-spacing: -0.02em; margin: 0; }
.statement p.big em { color: var(--pine); }

/* seasons of light */
.seasons { display: grid; grid-template-columns: repeat(4, 1fr); gap: var(--gutter); }
.season { background: #fff; border-radius: var(--radius); padding: 26px; box-shadow: var(--shadow); }
.season svg { width: 100%; height: auto; display: block; margin-bottom: 18px; }
.season h3 { font-size: 24px; margin-bottom: 6px; }
.season p { font-size: 15px; color: var(--muted); margin: 0; }
.season .deg { font-family: var(--font-serif); font-style: italic; color: var(--pine); font-size: 20px; }

/* project cards */
.cards { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 64px var(--gutter); }
.card h3 { font-size: clamp(26px, 2.4vw, 36px); margin: 22px 0 6px; }
.card .meta { display: flex; justify-content: space-between; gap: 12px; color: var(--muted); font-size: 15px; margin-bottom: 10px; }
.card[hidden] { display: none; }
.cards--3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }

/* numbers */
.numbers { display: grid; grid-template-columns: repeat(4, 1fr); gap: var(--gutter); border-top: 1px solid rgba(34, 39, 42, .12); padding-top: 40px; }
.numbers b { display: block; font-size: clamp(44px, 5vw, 76px); font-weight: 300; letter-spacing: -0.04em; line-height: 1; color: var(--pine); }
.numbers span { color: var(--muted); font-size: 15px; }

/* page head */
.page-head { padding: clamp(48px, 7vw, 110px) 0 clamp(36px, 5vw, 64px); }
.page-head h1 { font-size: clamp(54px, 8.6vw, 136px); line-height: .98; letter-spacing: -0.045em; }
.page-head p { max-width: 56ch; color: var(--muted); margin-top: 22px; }

.filters { display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: 56px; }
.filters button { font: 400 15px var(--font-sans); border: 0; background: var(--birch); color: var(--ink); padding: 10px 20px; border-radius: 999px; cursor: pointer; transition: background .2s; }
.filters button:hover { background: #e2d9c9; }
.filters button[aria-pressed="true"] { background: var(--pine); color: #fff; }

/* project: sticky panel + image column */
.case { display: grid; grid-template-columns: 4fr 8fr; gap: clamp(32px, 5vw, 80px); align-items: start; }
.panel { position: sticky; top: 108px; background: #fff; border-radius: var(--radius); padding: 32px; box-shadow: var(--shadow); }
.panel h1 { font-size: clamp(36px, 3.6vw, 56px); letter-spacing: -0.035em; margin-bottom: 16px; }
.panel dl { margin: 24px 0; }
.panel dl div { display: flex; justify-content: space-between; gap: 12px; padding: 10px 0; border-top: 1px solid rgba(34, 39, 42, .1); font-size: 15px; }
.panel dt { color: var(--muted); }
.panel dd { margin: 0; font-weight: 500; text-align: right; }
.case-flow { display: grid; gap: var(--gutter); }
.case-flow .text { font-size: 19px; max-width: 60ch; padding: 20px 0; }
.case-flow .text h2 { font-size: clamp(28px, 3vw, 42px); margin-bottom: 16px; }
.pair { display: grid; grid-template-columns: 1fr 1fr; gap: var(--gutter); }

/* team */
.team { display: grid; grid-template-columns: repeat(4, 1fr); gap: var(--gutter); }
.member img { width: 100%; aspect-ratio: 1; border-radius: 50%; object-fit: cover; background: var(--birch); }
.member h3 { font-size: 22px; margin-top: 18px; }
.member p { color: var(--muted); font-size: 15px; margin: 2px 0 0; }

/* rings */
.rings { display: grid; grid-template-columns: repeat(3, 1fr); gap: var(--gutter); }
.ring-card { background: #fff; border-radius: var(--radius); padding: 32px; text-align: center; box-shadow: var(--shadow); }
.ring { --v: 50; width: 150px; aspect-ratio: 1; margin: 0 auto 20px; border-radius: 50%; display: grid; place-items: center; background: conic-gradient(var(--pine) calc(var(--v) * 1%), var(--birch) 0); position: relative; }
.ring::before { content: ""; position: absolute; inset: 14px; border-radius: 50%; background: #fff; }
.ring b { position: relative; font-size: 36px; font-weight: 400; letter-spacing: -0.03em; }
.ring-card h3 { font-size: 22px; margin-bottom: 6px; }
.ring-card p { color: var(--muted); font-size: 15px; margin: 0; }

/* services */
.service-list { display: grid; gap: 14px; }
.service { background: #fff; border-radius: var(--radius); box-shadow: var(--shadow); }
.service summary { list-style: none; cursor: pointer; display: grid; grid-template-columns: 60px 1fr auto; gap: 20px; align-items: center; padding: 28px 32px; font-size: clamp(24px, 2.6vw, 36px); letter-spacing: -0.02em; }
.service summary::-webkit-details-marker { display: none; }
.service summary .n { font-family: var(--font-serif); font-style: italic; color: var(--pine); font-size: 22px; }
.service summary::after { content: "+"; width: 44px; height: 44px; border-radius: 50%; background: var(--birch); display: grid; place-items: center; font-size: 22px; transition: transform .3s var(--ease); }
.service[open] summary::after { transform: rotate(45deg); background: var(--sun); }
.service .body { padding: 0 32px 32px 112px; display: grid; grid-template-columns: 1.2fr 1fr; gap: 32px; color: var(--muted); }
.service ul { margin: 0; padding-left: 18px; }
.stepper { list-style: none; margin: 0; padding: 0; max-width: 820px; }
.stepper li { display: grid; grid-template-columns: 64px 1fr; gap: 20px; padding-bottom: 36px; position: relative; }
.stepper li::before { content: ""; position: absolute; left: 21px; top: 44px; bottom: 0; width: 2px; background: var(--birch); }
.stepper li:last-child::before { display: none; }
.stepper .dot { width: 44px; height: 44px; border-radius: 50%; background: var(--pine); color: #fff; display: grid; place-items: center; font-weight: 500; }
.stepper h3 { font-size: 26px; margin: 6px 0 6px; }
.stepper p { color: var(--muted); margin: 0; }

/* contact */
.contact { display: grid; grid-template-columns: 7fr 5fr; gap: var(--gutter); align-items: start; }
.form-card { background: #fff; border-radius: var(--radius); padding: clamp(24px, 3.4vw, 48px); box-shadow: var(--shadow); }
.form { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; }
.field { display: flex; flex-direction: column; gap: 6px; }
.field--full { grid-column: 1 / -1; }
.field label { font-size: 14px; font-weight: 500; }
.field input, .field select, .field textarea { font: 300 17px var(--font-sans); color: var(--ink); background: var(--snow); border: 1px solid transparent; border-radius: 12px; padding: 14px 16px; appearance: none; }
.field textarea { min-height: 150px; resize: vertical; }
.field input:focus, .field select:focus, .field textarea:focus { outline: none; border-color: var(--pine); background: #fff; }
.form-note { grid-column: 1 / -1; background: #eaf1ec; color: var(--pine); border-radius: 12px; padding: 14px 16px; margin: 0; }
.visit { display: grid; gap: var(--gutter); }
.visit .info { background: var(--birch); border-radius: var(--radius); padding: 32px; }
.visit .info h3 { font-size: 30px; margin-bottom: 12px; }

/* 6. Footer ---------------------------------------------------------------- */
.site-footer { padding: var(--space) 0 32px; }
.footer-card { display: flex; justify-content: space-between; align-items: end; gap: 32px; flex-wrap: wrap; background: var(--pine); color: #fff; border-radius: calc(var(--radius) * 1.4); padding: clamp(32px, 5vw, 72px); }
.footer-card .eyebrow { color: #cfe0d5; }
.footer-card h2 { font-size: clamp(36px, 5vw, 76px); letter-spacing: -0.04em; }
.footer-card em { color: var(--sun); }
.footer-grid { display: grid; grid-template-columns: 2fr 1fr 1fr 1fr; gap: var(--gutter); padding: 56px 0 40px; font-size: 15px; }
.footer-logo { font-weight: 600; font-size: 19px; display: flex; flex-wrap: wrap; align-items: baseline; gap: 8px; }
.footer-logo p { flex-basis: 100%; font-weight: 300; color: var(--muted); font-size: 15px; margin-top: 8px; }
.footer-grid a:hover { color: var(--pine); text-decoration: underline; }
.footer-base { display: flex; justify-content: space-between; gap: 12px; font-size: 13px; color: var(--muted); border-top: 1px solid rgba(34, 39, 42, .1); padding-top: 22px; flex-wrap: wrap; }

/* 7. Responsive ------------------------------------------------------------ */
@media (max-width: 1080px) {
  .seasons { grid-template-columns: repeat(2, 1fr); }
  .team { grid-template-columns: repeat(2, 1fr); }
  .cards--3 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .service .body { padding-left: 32px; grid-template-columns: 1fr; }
}
@media (max-width: 860px) {
  body { font-size: 16px; }
  .menu-btn { display: inline-block; background: var(--birch); border: 0; border-radius: 999px; padding: 10px 20px; font: 500 15px var(--font-sans); color: var(--ink); cursor: pointer; position: relative; z-index: 60; }
  .site-nav { position: fixed; inset: 0; z-index: 55; background: var(--snow); flex-direction: column; justify-content: center; align-items: stretch; padding: 0 var(--gutter); gap: 6px; opacity: 0; visibility: hidden; transform: scale(.98); transition: opacity .35s, visibility .35s, transform .35s var(--ease); }
  .site-nav a { font-size: 34px; padding: 12px 20px; border-radius: 16px; }
  .site-nav .nav-cta { margin: 16px 0 0; text-align: center; }
  .menu-open .site-nav { opacity: 1; visibility: visible; transform: none; }
  .menu-open { overflow: hidden; }
  .hero-media img { aspect-ratio: 4 / 5; }
  .hero-card { position: relative; left: auto; bottom: auto; margin: -80px 12px 0; }
  .sunbeam { display: none; }
  .statement, .case, .contact, .pair, .rings { grid-template-columns: 1fr; }
  .panel { position: static; }
  .cards, .cards--3 { grid-template-columns: 1fr; gap: 48px; }
  .numbers { grid-template-columns: 1fr 1fr; row-gap: 28px; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .footer-logo { grid-column: 1 / -1; }
  .service summary { grid-template-columns: 40px 1fr auto; padding: 22px; gap: 12px; }
  .service .body { padding: 0 22px 24px; }
}
@media (max-width: 520px) {
  .seasons, .form { grid-template-columns: 1fr; }
  .team { gap: 24px 16px; }
}
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { transition: none !important; animation: none !important; }
}