/* ==========================================================================
   Contour — topographic landscape & site planning template · archesign.studio
   1. Tokens  2. Base  3. Header  4. Components  5. Pages  6. Footer  7. Responsive
   ========================================================================== */

/* 1. Tokens ---------------------------------------------------------------- */
:root {
  --paper: #f7f2e8;
  --sand: #efe6d6;
  --clay: #b5835a;
  --umber: #3d3126;
  --olive: #6f7a4a;
  --sky: #8fb3c4;
  --line: #d8ccb6;
  --muted: #7a6c5c;

  --font-sans: "Red Hat Display", "Segoe UI", Arial, sans-serif;
  --font-mono: "Red Hat Mono", ui-monospace, Consolas, monospace;

  --gutter: clamp(16px, 3vw, 40px);
  --max: 1360px;
  --space: clamp(80px, 10vw, 140px);
  --ease: cubic-bezier(.2, .7, .2, 1);
}

/* 2. Base ------------------------------------------------------------------ */
*, *::before, *::after { box-sizing: border-box; }
[hidden] { display: none !important; }
html { -webkit-text-size-adjust: 100%; }
body { margin: 0; color: var(--umber); font: 400 17px/1.65 var(--font-sans); -webkit-font-smoothing: antialiased; background: var(--paper) url("../img/bg.svg") center top / 1600px auto repeat; }
img { display: block; max-width: 100%; height: auto; }
a { color: inherit; text-decoration: none; }
p { margin: 0 0 1em; }
h1, h2, h3, h4 { font-weight: 800; margin: 0; line-height: 1; letter-spacing: -0.03em; }
h4 { font: 500 12px var(--font-mono); letter-spacing: .12em; text-transform: uppercase; color: var(--clay); margin-bottom: 10px; }
.mono { font-family: var(--font-mono); }
:focus-visible { outline: 2px solid var(--clay); outline-offset: 3px; }
::selection { background: var(--clay); color: var(--paper); }
.skip { position: absolute; left: -999px; top: 8px; background: var(--umber); color: var(--paper); 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; }
.panel { background: rgba(247, 242, 232, .94); border: 1px solid var(--line); }
.label { font: 500 12px var(--font-mono); letter-spacing: .14em; text-transform: uppercase; color: var(--clay); margin: 0 0 16px; display: flex; align-items: center; gap: 10px; }
.label::before { content: "▲"; font-size: 9px; }
.muted { color: var(--muted); }
.h-l { font-size: clamp(38px, 5vw, 76px); }

/* 3. Header ---------------------------------------------------------------- */
.site-header { position: sticky; top: 0; z-index: 50; background: var(--paper); border-bottom: 1px solid var(--line); }
.header-row { display: flex; align-items: center; gap: 28px; height: 74px; }
.logo { display: inline-flex; align-items: center; gap: 10px; font-weight: 800; font-size: 22px; letter-spacing: .06em; color: var(--umber); }
.logo svg { width: 34px; height: 34px; color: var(--clay); }
.logo small { font: 500 12px var(--font-mono); letter-spacing: .08em; color: var(--muted); margin-left: 6px; text-transform: lowercase; }
.coords { font: 400 12px var(--font-mono); color: var(--muted); margin-right: auto; }
.site-nav { display: flex; gap: 4px; }
.site-nav a { font-weight: 700; font-size: 15px; padding: 9px 14px; border: 1px solid transparent; transition: border-color .2s; }
.site-nav a:hover { border-color: var(--line); }
.site-nav a[aria-current="page"] { background: var(--umber); color: var(--paper); }
.menu-btn { display: none; }

/* 4. Components ------------------------------------------------------------ */
.btn { display: inline-flex; align-items: center; gap: 10px; padding: 15px 24px; background: var(--umber); color: var(--paper); font: 700 15px var(--font-sans); letter-spacing: .02em; border: 0; cursor: pointer; transition: background .2s; }
.btn:hover { background: var(--clay); }
.btn--clay { background: var(--clay); }
.btn--clay:hover { background: var(--paper); color: var(--umber); }
.btn--ghost { background: transparent; color: var(--umber); box-shadow: inset 0 0 0 1.5px var(--umber); }
.btn--ghost:hover { background: var(--umber); color: var(--paper); }
.frame { border: 1px solid var(--umber); background: var(--paper); position: relative; }
.frame img { width: 100%; aspect-ratio: var(--ratio, 4 / 3); object-fit: cover; }
.frame .cap { display: flex; justify-content: space-between; gap: 10px; padding: 8px 12px; border-top: 1px solid var(--umber); font: 400 12px var(--font-mono); text-transform: uppercase; letter-spacing: .06em; }
.js .reveal { opacity: 0; transform: translateY(14px); transition: opacity .8s var(--ease), transform .8s var(--ease); }
.js .reveal.is-in { opacity: 1; transform: none; }

/* 5. Pages ----------------------------------------------------------------- */
/* hero */
.hero { padding: clamp(40px, 6vw, 80px) 0; }
.hero-top { display: grid; grid-template-columns: 7fr 5fr; gap: var(--gutter); align-items: end; margin-bottom: 36px; }
.hero h1 { font-size: clamp(50px, 7.6vw, 124px); letter-spacing: -0.045em; line-height: .92; }
.hero h1 span { color: var(--clay); }
.hero-top p { color: var(--muted); font-size: 19px; }

/* project map */
.map { position: relative; border: 1px solid var(--umber); background: var(--sand); }
.map > img { width: 100%; aspect-ratio: 16 / 10; object-fit: cover; }
.pin { position: absolute; left: var(--x); top: var(--y); transform: translate(-50%, -100%); display: flex; flex-direction: column; align-items: center; }
.pin b { display: grid; place-items: center; width: 34px; height: 34px; border-radius: 50% 50% 50% 0; transform: rotate(-45deg); background: var(--clay); color: var(--paper); box-shadow: 0 6px 12px -6px rgba(61, 49, 38, .7); transition: background .2s, transform .3s var(--ease); }
.pin b span { transform: rotate(45deg); font: 500 13px var(--font-mono); }
.pin em { font: 500 11px var(--font-mono); font-style: normal; text-transform: uppercase; letter-spacing: .08em; background: var(--paper); border: 1px solid var(--umber); padding: 2px 6px; margin-top: 6px; white-space: nowrap; opacity: 0; transform: translateY(-4px); transition: .25s; }
.pin:hover b, .pin:focus-visible b { background: var(--umber); transform: rotate(-45deg) scale(1.15); }
.pin:hover em, .pin:focus-visible em { opacity: 1; transform: none; }
.legend { position: absolute; right: 14px; bottom: 14px; padding: 12px 14px; font: 400 12px var(--font-mono); display: grid; gap: 4px; }
.legend i { display: inline-block; width: 18px; height: 8px; margin-right: 8px; vertical-align: middle; }
.map-list { display: grid; grid-template-columns: repeat(5, 1fr); border: 1px solid var(--umber); border-top: 0; }
.map-list a { padding: 14px 16px; border-right: 1px solid var(--line); font-size: 15px; font-weight: 700; display: flex; gap: 10px; align-items: baseline; }
.map-list a:last-child { border-right: 0; }
.map-list a span { font: 500 12px var(--font-mono); color: var(--clay); }
.map-list a:hover { background: var(--umber); color: var(--paper); }

/* approach grid */
.approach { display: grid; grid-template-columns: repeat(4, 1fr); border: 1px solid var(--umber); }
.approach > div { padding: 26px 22px; border-right: 1px solid var(--line); background: rgba(247, 242, 232, .94); }
.approach > div:last-child { border-right: 0; }
.approach .n { font: 500 13px var(--font-mono); color: var(--clay); }
.approach h3 { font-size: 26px; margin: 14px 0 10px; }
.approach p { color: var(--muted); margin: 0; font-size: 15px; }

/* data strip */
.data { display: grid; grid-template-columns: repeat(4, 1fr); gap: 1px; background: var(--umber); border: 1px solid var(--umber); }
.data div { background: var(--paper); padding: 22px; }
.data b { display: block; font-size: clamp(34px, 3.6vw, 52px); letter-spacing: -0.04em; }
.data span { font: 400 12px var(--font-mono); text-transform: uppercase; letter-spacing: .1em; color: var(--muted); }

/* page head */
.page-head { padding: clamp(48px, 7vw, 110px) 0 clamp(32px, 4vw, 56px); }
.page-head .panel { padding: clamp(24px, 4vw, 48px); }
.page-head h1 { font-size: clamp(54px, 8.6vw, 140px); letter-spacing: -0.05em; line-height: .9; }
.page-head p { max-width: 58ch; color: var(--muted); margin: 20px 0 0; font-size: 19px; }

/* layer filter */
.layers { display: flex; flex-wrap: wrap; gap: 0; border: 1px solid var(--umber); width: fit-content; max-width: 100%; margin-bottom: 36px; background: var(--paper); }
.layers button { font: 500 13px var(--font-mono); letter-spacing: .06em; text-transform: uppercase; padding: 12px 16px; border: 0; border-right: 1px solid var(--line); background: transparent; color: var(--umber); cursor: pointer; display: inline-flex; align-items: center; gap: 8px; }
.layers button:last-child { border-right: 0; }
.layers button::before { content: ""; width: 12px; height: 12px; border: 1.5px solid currentColor; }
.layers button[aria-pressed="true"] { background: var(--umber); color: var(--paper); }
.layers button[aria-pressed="true"]::before { background: var(--clay); border-color: var(--clay); }
.grid3 { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 32px var(--gutter); }
.site { display: block; background: rgba(247, 242, 232, .94); }
.site .meta { display: flex; justify-content: space-between; padding: 12px 0 0; font: 400 12px var(--font-mono); color: var(--muted); }
.site h3 { font-size: 24px; margin-top: 6px; }
.site[hidden] { display: none; }

/* project analysis */
.analysis { display: grid; grid-template-columns: repeat(3, 1fr); gap: var(--gutter); }
.facts { display: grid; grid-template-columns: repeat(5, 1fr); gap: 1px; background: var(--umber); border: 1px solid var(--umber); margin: 0; }
.facts div { background: var(--paper); padding: 18px; }
.facts dt { font: 400 11px var(--font-mono); text-transform: uppercase; letter-spacing: .1em; color: var(--muted); }
.facts dd { margin: 6px 0 0; font-size: 22px; font-weight: 800; letter-spacing: -0.02em; }
.text2 { display: grid; grid-template-columns: 4fr 7fr; gap: clamp(28px, 5vw, 80px); }
.text2 h2 { font-size: clamp(32px, 3.6vw, 52px); }

/* team */
.team { display: grid; grid-template-columns: repeat(3, 1fr); gap: var(--gutter); }
.member { background: rgba(247, 242, 232, .94); border: 1px solid var(--line); }
.member img { width: 100%; aspect-ratio: 1; object-fit: cover; }
.member div { padding: 16px 18px; }
.member h3 { font-size: 22px; }
.member p { margin: 4px 0 0; font: 400 12px var(--font-mono); color: var(--muted); text-transform: uppercase; letter-spacing: .08em; }

/* services */
.svc { width: 100%; border-collapse: collapse; background: rgba(247, 242, 232, .96); border: 1px solid var(--umber); }
.svc th, .svc td { text-align: left; padding: 18px 20px; border-bottom: 1px solid var(--line); vertical-align: top; }
.svc th { font: 500 12px var(--font-mono); letter-spacing: .1em; text-transform: uppercase; color: var(--muted); border-bottom: 1px solid var(--umber); }
.svc td:first-child { font: 500 13px var(--font-mono); color: var(--clay); white-space: nowrap; }
.svc td h3 { font-size: 22px; margin-bottom: 4px; }
.svc td p { margin: 0; color: var(--muted); font-size: 15px; }
.table-wrap { overflow-x: auto; }
.faq { max-width: 860px; }
.faq details { background: rgba(247, 242, 232, .96); border: 1px solid var(--line); padding: 18px 22px; margin-bottom: -1px; }
.faq summary { cursor: pointer; list-style: none; display: block; position: relative; padding-right: 40px; font-weight: 700; font-size: 18px; }
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after { content: "+"; position: absolute; right: 0; top: -2px; font: 500 20px var(--font-mono); color: var(--clay); }
.faq details[open] summary::after { content: "−"; }
.faq details p { margin: 10px 0 0; color: var(--muted); }

/* contact */
.contact { display: grid; grid-template-columns: 7fr 5fr; gap: var(--gutter); align-items: start; }
.form { display: grid; grid-template-columns: 1fr 1fr; gap: 1px; background: var(--line); border: 1px solid var(--umber); }
.form > *, .field { min-width: 0; }
.field { display: flex; flex-direction: column; background: var(--paper); padding: 12px 16px; }
.field--full { grid-column: 1 / -1; }
.field label { font: 500 11px var(--font-mono); letter-spacing: .12em; text-transform: uppercase; color: var(--clay); }
.field input, .field select, .field textarea { font: 500 17px var(--font-sans); color: var(--umber); background: transparent; border: 0; padding: 8px 0; border-radius: 0; appearance: none; min-width: 0; max-width: 100%; }
.field textarea { min-height: 130px; resize: vertical; }
.field:focus-within { background: #fff; box-shadow: inset 3px 0 0 var(--clay); }
.field input:focus, .field select:focus, .field textarea:focus { outline: none; }
.form .actions { grid-column: 1 / -1; background: var(--paper); padding: 16px; }
.form-note { grid-column: 1 / -1; margin: 0; padding: 14px 16px; background: var(--umber); color: var(--paper); font: 400 14px var(--font-mono); }
.office { padding: 28px; }
.office h3 { font-size: 26px; margin-bottom: 10px; }

/* 6. Footer ---------------------------------------------------------------- */
.site-footer { background: var(--umber); color: var(--sand); margin-top: var(--space); padding: clamp(56px, 8vw, 110px) 0 28px; }
.f-top { display: flex; justify-content: space-between; align-items: end; gap: 24px; flex-wrap: wrap; padding-bottom: 48px; border-bottom: 1px solid rgba(239, 230, 214, .15); }
.f-top h2 { font-size: clamp(36px, 5vw, 72px); letter-spacing: -0.045em; }
.f-grid { display: grid; grid-template-columns: 2fr 1fr 1fr 1fr; gap: var(--gutter); padding: 44px 0 30px; font-size: 15px; }
.f-logo { font-weight: 800; font-size: 22px; letter-spacing: .06em; margin: 0 0 8px; }
.dim { color: #bfae95; }
.f-grid a:hover { color: var(--clay); }
.f-base { font-size: 12px; color: #9a8a74; margin: 0; }

/* 7. Responsive ------------------------------------------------------------ */
@media (max-width: 1080px) {
  .coords { display: none; }
  .header-row { justify-content: space-between; }
  .approach, .data { grid-template-columns: repeat(2, 1fr); }
  .approach > div:nth-child(2) { border-right: 0; }
  .approach > div:nth-child(-n+2) { border-bottom: 1px solid var(--line); }
  .map-list { grid-template-columns: repeat(2, 1fr); }
  .map-list a { border-bottom: 1px solid var(--line); }
  .grid3 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .facts { grid-template-columns: repeat(3, 1fr); }
}
@media (max-width: 860px) {
  body { font-size: 16px; }
  .menu-btn { display: inline-block; background: var(--umber); color: var(--paper); border: 0; padding: 11px 16px; font: 500 13px var(--font-mono); letter-spacing: .1em; text-transform: uppercase; cursor: pointer; position: relative; z-index: 60; }
  .site-nav { position: fixed; inset: 0; z-index: 55; background: var(--paper) url("../img/bg.svg") center / cover; flex-direction: column; justify-content: center; padding: 0 var(--gutter); gap: 6px; opacity: 0; visibility: hidden; transition: opacity .3s, visibility .3s; }
  .site-nav a { font-size: 40px; font-weight: 800; letter-spacing: -0.03em; background: var(--paper); border: 1px solid var(--umber); padding: 10px 18px; }
  .menu-open .site-nav { opacity: 1; visibility: visible; }
  .menu-open { overflow: hidden; }
  .hero-top, .text2, .contact, .form, .analysis { grid-template-columns: 1fr; }
  .map > img { aspect-ratio: 4 / 5; }
  .pin em { display: none; }
  .legend { display: none; }
  .grid3, .team { grid-template-columns: 1fr; }
  .f-grid { grid-template-columns: 1fr 1fr; }
  .f-grid > :first-child { grid-column: 1 / -1; }
}
@media (max-width: 520px) {
  .approach, .data, .map-list, .facts { grid-template-columns: 1fr; }
  .approach > div { border-right: 0; border-bottom: 1px solid var(--line); }
  .map-list a { border-right: 0; }
}
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { transition: none !important; animation: none !important; }
}