/* ==========================================================================
   Atelier Lin — interior design template · archesign.studio
   1. Tokens  2. Base  3. Layout  4. Header  5. Components  6. Pages  7. Footer
   ========================================================================== */

/* 1. Tokens ---------------------------------------------------------------- */
:root {
  --linen: #f3ede4;
  --sand: #e7dccc;
  --ink: #2b2420;
  --clay: #b5653c;
  --sage: #8a9a7b;
  --muted: #7a6d62;

  --font-serif: "Cormorant Garamond", "Times New Roman", serif;
  --font-sans: "DM Sans", "Helvetica Neue", Arial, sans-serif;

  --gutter: clamp(16px, 3.4vw, 48px);
  --max: 1320px;
  --space: clamp(80px, 11vw, 168px);
  --arch: 999px 999px 0 0;
  --ease: cubic-bezier(.22, .65, .2, 1);
}

/* 2. Base ------------------------------------------------------------------ */
*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body { margin: 0; background: var(--linen); color: var(--ink); font: 400 17px/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 { font-family: var(--font-serif); font-weight: 500; margin: 0; line-height: 1.02; letter-spacing: -0.01em; }
em { font-style: italic; }
:focus-visible { outline: 2px solid var(--clay); outline-offset: 3px; }
::selection { background: var(--clay); color: var(--linen); }
.skip { position: absolute; left: -999px; top: 8px; background: var(--ink); color: var(--linen); padding: 8px 12px; z-index: 100; }
.skip:focus { left: 8px; }
.sr { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); }

.eyebrow { font: 500 12px var(--font-sans); letter-spacing: .18em; text-transform: uppercase; color: var(--clay); margin: 0 0 18px; }
.muted { color: var(--muted); }

/* 3. Layout ---------------------------------------------------------------- */
.wrap { width: 100%; max-width: var(--max); margin: 0 auto; padding: 0 var(--gutter); }
.section { padding: var(--space) 0; }
.section--sand { background: var(--sand); }
.section--tight { padding: calc(var(--space) * .45) 0; }
.center { text-align: center; }
.title-xl, .title-l, .title-m { font-family: var(--font-serif); font-weight: 500; line-height: 1.02; }
.title-xl { font-size: clamp(48px, 7.6vw, 118px); line-height: .98; }
.title-l { font-size: clamp(38px, 5vw, 76px); }
.title-m { font-size: clamp(30px, 3.4vw, 50px); }

/* 4. Header ---------------------------------------------------------------- */
.site-header { position: sticky; top: 0; z-index: 50; background: var(--linen); transition: box-shadow .3s; }
.scrolled .site-header { box-shadow: 0 1px 0 rgba(43, 36, 32, .12); }
.header-row { display: grid; grid-template-columns: 1fr auto 1fr; align-items: center; height: 86px; }
.logo { font-family: var(--font-serif); font-size: 32px; font-weight: 500; letter-spacing: .01em; display: flex; align-items: baseline; gap: 8px; }
.logo em { font-size: 15px; font-family: var(--font-sans); font-style: normal; letter-spacing: .2em; text-transform: uppercase; color: var(--muted); }
.nav { display: flex; gap: 34px; align-items: center; }
.nav--right { justify-content: flex-end; }
.nav a { font-size: 15px; position: relative; }
.nav a:not(.pill)::after { content: ""; position: absolute; left: 50%; right: 50%; bottom: -4px; height: 1px; background: var(--clay); transition: .35s var(--ease); }
.nav a:not(.pill):hover::after, .nav a[aria-current="page"]:not(.pill)::after { left: 0; right: 0; }
.pill { border: 1px solid var(--ink); border-radius: 999px; padding: 9px 22px; transition: background .25s, color .25s; }
.pill:hover, .pill[aria-current="page"] { background: var(--ink); color: var(--linen); }
.menu-btn, .mobile-menu { display: none; }

@media (max-width: 860px) {
  .header-row { grid-template-columns: 1fr auto; height: 72px; }
  .nav { display: none; }
  .logo { font-size: 27px; }
  .logo em { display: none; }
  .menu-btn { display: inline-block; background: none; border: 1px solid var(--ink); border-radius: 999px; padding: 8px 18px; font: 500 14px var(--font-sans); color: var(--ink); cursor: pointer; position: relative; z-index: 60; }
  .mobile-menu {
    display: flex; position: fixed; inset: 0; z-index: 55; background: var(--sand); flex-direction: column; justify-content: center;
    padding: 0 var(--gutter); clip-path: circle(0 at calc(100% - 50px) 36px); transition: clip-path .6s var(--ease); visibility: hidden;
  }
  .mobile-menu a { font-family: var(--font-serif); font-size: 46px; line-height: 1.25; }
  .mobile-menu a:hover { color: var(--clay); font-style: italic; }
  .mm-foot { margin-top: 40px; color: var(--muted); font-size: 14px; }
  .menu-open .mobile-menu { clip-path: circle(150% at calc(100% - 50px) 36px); visibility: visible; }
  .menu-open { overflow: hidden; }
}

/* 5. Components ------------------------------------------------------------ */
.btn {
  display: inline-flex; align-items: center; gap: 14px; padding: 16px 30px; border-radius: 999px; background: var(--ink); color: var(--linen);
  font: 500 15px var(--font-sans); border: 1px solid var(--ink); transition: background .25s, color .25s, border-color .25s; cursor: pointer;
}
.btn:hover { background: var(--clay); border-color: var(--clay); }
.btn--line { background: transparent; color: var(--ink); }
.btn--line:hover { color: var(--linen); }
.text-link { border-bottom: 1px solid currentColor; padding-bottom: 3px; font-weight: 500; }
.text-link:hover { color: var(--clay); }

.arch { border-radius: var(--arch); overflow: hidden; background: var(--sand); }
.arch img { width: 100%; height: 100%; object-fit: cover; aspect-ratio: var(--ratio, 4 / 5); transition: transform 1.2s var(--ease); }
a:hover .arch img { transform: scale(1.04); }
.frame img { width: 100%; aspect-ratio: var(--ratio, 4 / 3); object-fit: cover; border-radius: 4px; }
figure { margin: 0; }
figcaption { font-size: 13px; color: var(--muted); margin-top: 12px; font-style: italic; font-family: var(--font-serif); font-size: 17px; }

/* marquee */
.marquee { overflow: hidden; border-top: 1px solid rgba(43, 36, 32, .2); border-bottom: 1px solid rgba(43, 36, 32, .2); padding: 22px 0; }
.marquee-track { display: flex; gap: 56px; width: max-content; animation: marquee 38s linear infinite; }
.marquee span { font-family: var(--font-serif); font-size: clamp(26px, 3vw, 42px); white-space: nowrap; display: inline-flex; gap: 56px; align-items: center; }
.marquee span::after { content: "✦"; font-size: .5em; color: var(--clay); }
.marquee span:nth-child(even) { font-style: italic; color: var(--muted); }
@keyframes marquee { to { transform: translateX(-50%); } }

/* room card */
.room h3 { font-size: clamp(26px, 2.4vw, 34px); margin-top: 18px; }
.room p { margin: 4px 0 0; color: var(--muted); font-size: 14px; letter-spacing: .04em; }

/* reveal */
.js .reveal { opacity: 0; transform: translateY(30px); transition: opacity 1.1s var(--ease), transform 1.1s var(--ease); }
.js .reveal.is-in { opacity: 1; transform: none; }

/* 6. Pages ----------------------------------------------------------------- */
/* hero */
.hero { padding: clamp(28px, 5vw, 64px) 0 var(--space); }
.hero-grid { display: grid; grid-template-columns: 7fr 5fr; gap: var(--gutter); align-items: end; }
.hero h1 em { color: var(--clay); }
.hero-copy { padding-bottom: clamp(0px, 4vw, 60px); }
.hero-copy p.lead { font-size: clamp(18px, 1.5vw, 21px); max-width: 40ch; margin: 30px 0 34px; color: var(--muted); }
.hero-actions { display: flex; gap: 14px; flex-wrap: wrap; align-items: center; }
.hero-art { position: relative; }
.hero-art .arch { --ratio: 4 / 5; }
.badge-round {
  position: absolute; left: -46px; bottom: 60px; width: 132px; height: 132px; border-radius: 50%; background: var(--clay); color: var(--linen);
  display: grid; place-items: center; text-align: center; font-family: var(--font-serif); font-size: 19px; line-height: 1.1; padding: 16px; transform: rotate(-10deg);
}
.badge-round b { display: block; font-size: 40px; font-weight: 500; }
.side-note { writing-mode: vertical-rl; transform: rotate(180deg); position: absolute; right: -34px; top: 10%; font-size: 12px; letter-spacing: .3em; text-transform: uppercase; color: var(--muted); }

/* intro */
.intro { display: grid; grid-template-columns: 4fr 8fr; gap: var(--gutter); }
.intro .title-l em { color: var(--clay); }
.intro-text { columns: 2; column-gap: var(--gutter); color: var(--muted); margin-top: 34px; }

/* horizontal rooms rail */
.rail-head { display: flex; justify-content: space-between; align-items: end; gap: 24px; margin-bottom: 44px; flex-wrap: wrap; }
.rail { display: grid; grid-auto-flow: column; grid-auto-columns: clamp(250px, 28vw, 380px); gap: var(--gutter); overflow-x: auto; scroll-snap-type: x mandatory; padding: 0 var(--gutter) 24px; scrollbar-width: thin; scrollbar-color: var(--clay) transparent; }
.rail > * { scroll-snap-align: start; }
.rail .arch { --ratio: 9 / 11; }

/* materials */
.materials { display: grid; grid-template-columns: repeat(5, 1fr); gap: var(--gutter); margin-top: 56px; }
.swatch { text-align: center; }
.swatch img { width: 100%; aspect-ratio: 1; border-radius: 50%; object-fit: cover; box-shadow: 0 18px 40px -22px rgba(43, 36, 32, .5); transition: transform .6s var(--ease); }
.swatch:hover img { transform: translateY(-8px) rotate(-4deg); }
.swatch h3 { font-size: 24px; margin-top: 18px; }
.swatch p { font-size: 13px; color: var(--muted); margin: 2px 0 0; }

/* process */
.steps { list-style: none; padding: 0; margin: 0; display: grid; grid-template-columns: repeat(4, 1fr); gap: var(--gutter); counter-reset: s; }
.steps li { counter-increment: s; border-top: 1px solid rgba(43, 36, 32, .25); padding-top: 22px; }
.steps li::before { content: counter(s, upper-roman) "."; font-family: var(--font-serif); font-size: 46px; color: var(--clay); display: block; line-height: 1; margin-bottom: 16px; font-style: italic; }
.steps h3 { font-size: 28px; margin-bottom: 10px; }
.steps p { color: var(--muted); font-size: 15px; }

/* testimonial */
.quote { max-width: 980px; margin: 0 auto; text-align: center; }
.quote blockquote { margin: 0; font-family: var(--font-serif); font-size: clamp(30px, 3.8vw, 54px); line-height: 1.15; font-style: italic; }
.quote blockquote::before { content: "“"; display: block; font-size: 2.6em; line-height: .6; color: var(--clay); font-style: normal; }
.quote cite { display: block; margin-top: 30px; font-style: normal; font-size: 14px; letter-spacing: .14em; text-transform: uppercase; color: var(--muted); }

/* page head */
.page-head { padding: clamp(48px, 8vw, 120px) 0 clamp(36px, 5vw, 72px); text-align: center; }
.page-head h1 { font-size: clamp(54px, 9vw, 140px); line-height: .95; }
.page-head h1 em { color: var(--clay); }
.page-head p.lead { margin: 26px auto 0; max-width: 52ch; color: var(--muted); font-size: clamp(17px, 1.4vw, 20px); }

/* filter + portfolio */
.filters { display: flex; flex-wrap: wrap; justify-content: center; gap: 10px; margin-bottom: 64px; }
.filters button { font: 500 14px var(--font-sans); border: 1px solid rgba(43, 36, 32, .3); background: transparent; color: var(--ink); border-radius: 999px; padding: 10px 22px; cursor: pointer; transition: .25s; }
.filters button:hover { border-color: var(--ink); }
.filters button[aria-pressed="true"] { background: var(--ink); color: var(--linen); border-color: var(--ink); }
.portfolio { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 80px clamp(32px, 7vw, 120px); }
.portfolio .room:nth-child(even) { margin-top: 140px; }
.portfolio .room[hidden] { display: none; }
.portfolio .arch { --ratio: 4 / 5; }
.portfolio:has(> .room[hidden]) .room { margin-top: 0; } /* filtered view: no stagger */

/* project story */
.story-hero { display: grid; grid-template-columns: 5fr 7fr; gap: var(--gutter); align-items: center; }
.facts { list-style: none; padding: 0; margin: 34px 0 0; border-top: 1px solid rgba(43, 36, 32, .25); }
.facts li { display: flex; justify-content: space-between; gap: 20px; padding: 13px 0; border-bottom: 1px solid rgba(43, 36, 32, .25); font-size: 15px; }
.facts li span:first-child { color: var(--muted); }
.prose { max-width: 62ch; margin: 0 auto; font-size: 18px; }
.prose h2 { font-size: clamp(34px, 4vw, 54px); margin-bottom: 26px; }
.pull { font-family: var(--font-serif); font-style: italic; font-size: clamp(30px, 3.6vw, 50px); line-height: 1.15; color: var(--clay); text-align: center; max-width: 22ch; margin: 0 auto; }
.duo { display: grid; grid-template-columns: 7fr 5fr; gap: var(--gutter); align-items: end; }
.board { display: grid; grid-template-columns: repeat(5, 1fr); gap: 16px; }
.board figure img { width: 100%; aspect-ratio: 1; object-fit: cover; border-radius: 4px; }
.board figcaption { font-size: 15px; margin-top: 8px; }
.credits { display: grid; grid-template-columns: repeat(4, 1fr); gap: var(--gutter); border-top: 1px solid rgba(43, 36, 32, .25); padding-top: 26px; font-size: 15px; }
.credits span { display: block; color: var(--muted); font-size: 12px; letter-spacing: .14em; text-transform: uppercase; margin-bottom: 6px; }
.next { display: block; text-align: center; padding: 60px 0 0; }
.next .title-xl em { color: var(--clay); }

/* about */
.founder { display: grid; grid-template-columns: 5fr 6fr; gap: clamp(32px, 7vw, 110px); align-items: center; }
.founder .arch { --ratio: 4 / 5; }
.signature { font-family: var(--font-serif); font-style: italic; font-size: 34px; margin-top: 10px; }
.values { display: grid; grid-template-columns: repeat(3, 1fr); gap: var(--gutter); }
.value { background: var(--linen); padding: 40px 34px; border-radius: 200px 200px 6px 6px; text-align: center; }
.value h3 { font-size: 32px; margin: 12px 0 12px; }
.value p { color: var(--muted); font-size: 15px; margin: 0; }
.value .icon { font-family: var(--font-serif); font-size: 44px; color: var(--clay); font-style: italic; }
.team { display: grid; grid-template-columns: repeat(3, 1fr); gap: var(--gutter); }
.team .arch { --ratio: 4 / 5; }
.team h3 { font-size: 28px; margin-top: 16px; }
.press { display: flex; flex-wrap: wrap; justify-content: center; gap: 18px 56px; font-family: var(--font-serif); font-size: clamp(22px, 2.4vw, 32px); color: var(--muted); }
.press i:nth-child(odd) { font-style: normal; letter-spacing: .08em; text-transform: uppercase; font-family: var(--font-sans); font-size: .6em; align-self: center; }

/* services / packages */
.packages { display: grid; grid-template-columns: repeat(3, 1fr); gap: var(--gutter); align-items: stretch; }
.package { background: var(--linen); border: 1px solid rgba(43, 36, 32, .18); border-radius: 220px 220px 8px 8px; padding: 64px 34px 38px; display: flex; flex-direction: column; text-align: center; }
.package--featured { background: var(--ink); color: var(--linen); border-color: var(--ink); }
.package--featured .muted, .package--featured li { color: #cbbfb2; }
.package h3 { font-size: 38px; }
.package .price { font-family: var(--font-serif); font-size: 26px; margin: 14px 0 20px; }
.package .price b { font-size: 50px; font-weight: 500; }
.package ul { list-style: none; padding: 0; margin: 0 0 30px; text-align: left; font-size: 15px; flex: 1; }
.package li { padding: 10px 0 10px 26px; border-top: 1px solid rgba(43, 36, 32, .15); position: relative; color: var(--muted); }
.package--featured li { border-color: rgba(243, 237, 228, .18); }
.package li::before { content: "✦"; position: absolute; left: 0; color: var(--clay); font-size: 12px; top: 13px; }
.package .btn { align-self: center; }
.package--featured .btn { background: var(--clay); border-color: var(--clay); }
.faq { max-width: 860px; margin: 0 auto; }
.faq details { border-top: 1px solid rgba(43, 36, 32, .25); padding: 24px 0; }
.faq details:last-child { border-bottom: 1px solid rgba(43, 36, 32, .25); }
.faq summary { cursor: pointer; list-style: none; display: flex; justify-content: space-between; gap: 20px; font-family: var(--font-serif); font-size: clamp(24px, 2.4vw, 32px); }
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after { content: "+"; color: var(--clay); transition: transform .3s var(--ease); }
.faq details[open] summary::after { transform: rotate(45deg); }
.faq details p { margin: 14px 0 0; color: var(--muted); }

/* contact */
.contact-grid { display: grid; grid-template-columns: 7fr 5fr; gap: clamp(32px, 6vw, 96px); align-items: start; }
.form { display: grid; grid-template-columns: 1fr 1fr; gap: 26px 24px; }
.field { display: flex; flex-direction: column; gap: 8px; }
.field--full { grid-column: 1 / -1; }
.field label, .field legend { font-size: 12px; letter-spacing: .16em; text-transform: uppercase; color: var(--muted); padding: 0; }
.field input, .field select, .field textarea { font: 400 17px var(--font-sans); color: var(--ink); background: transparent; border: 0; border-bottom: 1px solid rgba(43, 36, 32, .4); padding: 10px 0; border-radius: 0; appearance: none; }
.field textarea { min-height: 130px; resize: vertical; }
.field input:focus, .field select:focus, .field textarea:focus { outline: none; border-bottom-color: var(--clay); }
fieldset.field { border: 0; margin: 0; padding: 0; }
.chips { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 6px; }
.chips label { position: relative; text-transform: none; letter-spacing: 0; font-size: 15px; color: var(--ink); }
.chips input { position: absolute; opacity: 0; width: 1px; height: 1px; }
.chips span { display: inline-block; border: 1px solid rgba(43, 36, 32, .3); border-radius: 999px; padding: 8px 18px; cursor: pointer; transition: .2s; }
.chips input:checked + span { background: var(--clay); border-color: var(--clay); color: var(--linen); }
.chips input:focus-visible + span { outline: 2px solid var(--clay); outline-offset: 2px; }
.form-note { grid-column: 1 / -1; background: var(--sand); padding: 16px 18px; border-radius: 6px; margin: 0; font-size: 15px; }
.visit { background: var(--sand); border-radius: 260px 260px 8px 8px; padding: 70px 36px 40px; text-align: center; }
.visit h2 { font-size: 40px; margin-bottom: 18px; }
.visit .hours { list-style: none; padding: 0; margin: 24px 0; text-align: left; font-size: 15px; }
.visit .hours li { display: flex; justify-content: space-between; padding: 10px 0; border-top: 1px solid rgba(43, 36, 32, .2); }

/* 7. Footer ---------------------------------------------------------------- */
.site-footer { background: var(--ink); color: var(--linen); padding: clamp(80px, 10vw, 150px) 0 32px; margin-top: var(--space); }
.site-footer .eyebrow { color: #c99a7c; }
.footer-hero { text-align: center; padding-bottom: clamp(60px, 8vw, 110px); border-bottom: 1px solid rgba(243, 237, 228, .15); }
.footer-big { font-family: var(--font-serif); font-size: clamp(42px, 6.6vw, 104px); line-height: 1; display: inline-block; transition: color .3s; }
.footer-big em { color: #d9926a; }
.footer-big:hover { color: #fff; }
.footer-cols { display: grid; grid-template-columns: repeat(4, 1fr); gap: var(--gutter); padding: 48px 0; font-size: 15px; }
.footer-cols a:hover { color: #d9926a; }
.newsletter { display: flex; border-bottom: 1px solid rgba(243, 237, 228, .4); flex-wrap: wrap; }
.newsletter input { flex: 1; min-width: 0; background: transparent; border: 0; color: var(--linen); font: 400 15px var(--font-sans); padding: 10px 0; }
.newsletter input::placeholder { color: #a99b8e; }
.newsletter input:focus { outline: none; }
.newsletter button { background: none; border: 0; color: var(--linen); font-size: 20px; cursor: pointer; }
.newsletter .form-note { flex-basis: 100%; background: transparent; padding: 10px 0 0; color: #c99a7c; font-size: 13px; }
.footer-base { display: flex; justify-content: space-between; gap: 16px; font-size: 13px; color: #a99b8e; padding-top: 24px; border-top: 1px solid rgba(243, 237, 228, .15); flex-wrap: wrap; }

/* Responsive --------------------------------------------------------------- */
@media (max-width: 1080px) {
  .materials { grid-template-columns: repeat(3, 1fr); }
  .steps { grid-template-columns: repeat(2, 1fr); row-gap: 40px; }
  .board { grid-template-columns: repeat(3, 1fr); }
  .packages { grid-template-columns: 1fr; max-width: 520px; margin: 0 auto; }
}
@media (max-width: 860px) {
  body { font-size: 16px; }
  .hero-grid, .intro, .story-hero, .duo, .founder, .contact-grid { grid-template-columns: 1fr; }
  .hero-art { max-width: 460px; margin: 0 auto; width: 100%; }
  .badge-round { left: -8px; bottom: 30px; width: 108px; height: 108px; font-size: 16px; }
  .badge-round b { font-size: 32px; }
  .side-note { display: none; }
  .intro-text { columns: 1; }
  .portfolio { grid-template-columns: 1fr; gap: 56px; }
  .portfolio .room:nth-child(even) { margin-top: 0; }
  .values, .team { grid-template-columns: 1fr; }
  .team { grid-template-columns: 1fr 1fr; }
  .credits { grid-template-columns: 1fr 1fr; }
  .footer-cols { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 520px) {
  .materials { grid-template-columns: repeat(2, 1fr); }
  .steps, .form { grid-template-columns: 1fr; }
  .board { grid-template-columns: repeat(2, 1fr); }
  .footer-cols { grid-template-columns: 1fr; }
  .team h3 { font-size: 22px; }
}
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { transition: none !important; animation: none !important; }
}