/* ==========================================================================
   Spandrel — facade contractor template · archesign.studio
   1. Tokens  2. Base  3. Header  4. Components  5. Pages  6. Footer  7. Responsive
   ========================================================================== */

/* 1. Tokens ---------------------------------------------------------------- */
:root {
  --white: #f6f8fa;
  --ink: #0f1720;
  --steel: #44546a;
  --mist: #e4edf3;
  --glacier: #7fc8e6;
  --blue: #0a84ff;
  --muted: #64748b;

  --font-display: "Sora", "Segoe UI", Arial, sans-serif;
  --font-body: "Manrope", "Segoe UI", Arial, sans-serif;

  --radius: 18px;
  --gutter: clamp(16px, 3vw, 40px);
  --max: 1320px;
  --space: clamp(80px, 10vw, 140px);
  --sky: linear-gradient(160deg, #e9f4fb 0%, #cfe6f3 45%, #a9d3ea 100%);
  --glass: rgba(255, 255, 255, .62);
  --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; background: var(--white); color: var(--ink); font: 400 17px/1.65 var(--font-body); -webkit-font-smoothing: antialiased; }
img { display: block; max-width: 100%; height: auto; }
a { color: inherit; text-decoration: none; }
p { margin: 0 0 1em; }
h1, h2, h3, h4 { font-family: var(--font-display); font-weight: 600; margin: 0; line-height: 1.08; letter-spacing: -0.03em; }
h4 { font-size: 13px; letter-spacing: .08em; text-transform: uppercase; font-weight: 600; margin-bottom: 10px; color: #c8d6e2; }
:focus-visible { outline: 2px solid var(--blue); outline-offset: 3px; border-radius: 6px; }
::selection { background: var(--glacier); color: var(--ink); }
.skip { position: absolute; left: -999px; top: 8px; background: var(--blue); color: #fff; 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); }
.wrap { width: 100%; max-width: var(--max); margin: 0 auto; padding: 0 var(--gutter); }
.section { padding: var(--space) 0; }
.kicker { display: inline-flex; align-items: center; gap: 10px; font: 600 13px var(--font-body); letter-spacing: .1em; text-transform: uppercase; color: var(--blue); margin: 0 0 16px; }
.kicker::before { content: ""; width: 22px; height: 2px; background: linear-gradient(90deg, var(--glacier), var(--blue)); border-radius: 2px; }
.kicker--light { color: var(--glacier); }
.muted { color: var(--muted); }
.h-l { font-size: clamp(36px, 4.6vw, 64px); }

/* 3. Header ---------------------------------------------------------------- */
.site-header { position: sticky; top: 0; z-index: 50; background: rgba(246, 248, 250, .97); border-bottom: 1px solid rgba(68, 84, 106, .1); }
.header-row { display: flex; align-items: center; justify-content: space-between; height: 80px; }
.logo { display: inline-flex; align-items: center; gap: 12px; font-family: var(--font-display); font-weight: 700; font-size: 21px; letter-spacing: -0.02em; }
.logo svg { width: 34px; height: 34px; }
.logo small { display: block; font: 500 11px var(--font-body); letter-spacing: .14em; text-transform: uppercase; color: var(--muted); }
.site-nav { display: flex; align-items: center; gap: 6px; }
.site-nav a { padding: 10px 16px; border-radius: 10px; font-weight: 600; font-size: 15px; color: var(--steel); transition: background .2s, color .2s; }
.site-nav a:hover, .site-nav a[aria-current="page"] { background: var(--mist); color: var(--ink); }
.site-nav .nav-cta { background: var(--blue); color: #fff; margin-left: 10px; }
.site-nav .nav-cta:hover, .site-nav .nav-cta[aria-current="page"] { background: var(--ink); color: #fff; }
.menu-btn { display: none; }

/* 4. Components ------------------------------------------------------------ */
.btn { display: inline-flex; align-items: center; gap: 10px; padding: 15px 26px; border-radius: 12px; background: var(--blue); color: #fff; font: 600 16px var(--font-body); border: 0; cursor: pointer; transition: transform .25s var(--ease), box-shadow .25s; box-shadow: 0 12px 24px -14px rgba(10, 132, 255, .8); }
.btn:hover { transform: translateY(-2px); box-shadow: 0 18px 30px -16px rgba(10, 132, 255, .9); }
.btn--ghost { background: #fff; color: var(--ink); box-shadow: inset 0 0 0 1px rgba(68, 84, 106, .2); }
.btn--white { background: #fff; color: var(--ink); box-shadow: none; }
.glass { background: var(--glass); backdrop-filter: blur(14px) saturate(140%); -webkit-backdrop-filter: blur(14px) saturate(140%); border: 1px solid rgba(255, 255, 255, .7); border-radius: var(--radius); box-shadow: 0 20px 40px -28px rgba(15, 23, 32, .45); }
.pic { border-radius: var(--radius); overflow: hidden; background: var(--mist); }
.pic img { width: 100%; aspect-ratio: var(--ratio, 4 / 3); object-fit: cover; transition: transform 1s var(--ease); }
a:hover .pic img { transform: scale(1.035); }
.badge { display: inline-flex; align-items: center; gap: 6px; padding: 5px 11px; border-radius: 999px; background: var(--mist); font: 600 13px var(--font-body); color: var(--steel); margin: 0 6px 6px 0; }
.badge b { color: var(--blue); }
.js .reveal { opacity: 0; transform: translateY(22px); transition: opacity .9s var(--ease), transform .9s var(--ease); }
.js .reveal.is-in { opacity: 1; transform: none; }

/* 5. Pages ----------------------------------------------------------------- */
/* hero */
.hero { background: var(--sky); overflow: hidden; }
.hero-grid { display: grid; grid-template-columns: 6fr 5fr; gap: var(--gutter); align-items: center; min-height: 680px; }
.hero h1 { font-size: clamp(44px, 6vw, 92px); letter-spacing: -0.045em; line-height: 1; }
.hero h1 span { background: linear-gradient(90deg, var(--blue), #3fb4e8); -webkit-background-clip: text; background-clip: text; color: transparent; }
.hero .lead { font-size: clamp(18px, 1.5vw, 21px); color: var(--steel); max-width: 46ch; margin: 24px 0 32px; }
.hero .actions { display: flex; gap: 12px; flex-wrap: wrap; }
.hero-visual { position: relative; align-self: end; }
.hero-visual img { width: 100%; max-height: 720px; object-fit: cover; object-position: center top; mix-blend-mode: multiply;
  -webkit-mask-image: linear-gradient(90deg, transparent, #000 18%, #000 88%, transparent), linear-gradient(#000 70%, transparent); -webkit-mask-composite: source-in;
  mask-image: linear-gradient(90deg, transparent, #000 18%, #000 88%, transparent), linear-gradient(#000 70%, transparent); mask-composite: intersect; }
.stat { position: absolute; padding: 16px 20px; min-width: 170px; }
.stat b { display: block; font-family: var(--font-display); font-size: 30px; letter-spacing: -0.03em; }
.stat span { font-size: 13px; color: var(--steel); font-weight: 600; }
.s1 { top: 14%; left: -6%; } .s2 { top: 44%; right: 0; } .s3 { bottom: 16%; left: 4%; }

/* logos strip */
.trust { display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 18px 40px; padding: 34px 0; border-bottom: 1px solid rgba(68, 84, 106, .1); }
.trust span { font: 700 18px var(--font-display); color: #9aa8b8; letter-spacing: -0.02em; }

/* systems */
.systems { display: grid; grid-template-columns: repeat(3, 1fr); gap: var(--gutter); }
.system { background: #fff; border-radius: var(--radius); overflow: hidden; border: 1px solid rgba(68, 84, 106, .1); transition: transform .3s var(--ease), box-shadow .3s; display: flex; flex-direction: column; }
.system:hover { transform: translateY(-4px); box-shadow: 0 24px 40px -28px rgba(15, 23, 32, .5); }
.system .pic { border-radius: 0; }
.system-body { padding: 24px 26px 28px; display: flex; flex-direction: column; gap: 10px; flex: 1; }
.system h3 { font-size: 24px; }
.system .code { font: 600 12px var(--font-body); letter-spacing: .12em; color: var(--blue); }

/* production line */
.line { display: grid; grid-template-columns: repeat(5, 1fr); gap: 0; counter-reset: l; position: relative; }
.line::before { content: ""; position: absolute; top: 27px; left: 10%; right: 10%; height: 2px; background: linear-gradient(90deg, var(--glacier), var(--blue)); }
.line li { list-style: none; text-align: center; padding: 0 12px; counter-increment: l; position: relative; }
.line li::before { content: counter(l, decimal-leading-zero); display: grid; place-items: center; width: 56px; height: 56px; margin: 0 auto 18px; border-radius: 50%; background: #fff; border: 2px solid var(--blue); font: 700 15px var(--font-display); color: var(--blue); position: relative; }
.line h3 { font-size: 19px; margin-bottom: 6px; }
.line p { font-size: 14px; color: var(--muted); }
.line { padding: 0; margin: 0; }

/* references */
.refs { display: grid; grid-template-columns: repeat(3, 1fr); gap: var(--gutter); }
.ref { position: relative; display: block; border-radius: var(--radius); overflow: hidden; }
.ref img { width: 100%; aspect-ratio: 5 / 6; object-fit: cover; transition: transform 1s var(--ease); }
.ref:hover img { transform: scale(1.04); }
.ref .over { position: absolute; left: 14px; right: 14px; bottom: 14px; padding: 18px 20px; }
.ref h3 { font-size: 22px; }
.ref .over p { margin: 4px 0 0; font-size: 14px; color: var(--steel); font-weight: 600; }
.ref[hidden] { display: none; }

/* page head */
.page-head { background: var(--sky); padding: clamp(56px, 8vw, 110px) 0 clamp(48px, 6vw, 80px); }
.page-head h1 { font-size: clamp(46px, 7vw, 104px); letter-spacing: -0.045em; line-height: 1; }
.page-head p { max-width: 58ch; color: var(--steel); font-size: 19px; margin-top: 20px; }
.filters { display: inline-flex; flex-wrap: wrap; gap: 4px; padding: 5px; border-radius: 14px; background: var(--mist); margin: 48px 0 40px; }
.filters button { font: 600 15px var(--font-body); padding: 10px 18px; border: 0; border-radius: 10px; background: transparent; color: var(--steel); cursor: pointer; }
.filters button[aria-pressed="true"] { background: #fff; color: var(--ink); box-shadow: 0 6px 14px -10px rgba(15, 23, 32, .6); }

/* project */
.spec-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 14px; }
.spec { background: #fff; border-radius: 14px; padding: 18px 20px; border: 1px solid rgba(68, 84, 106, .1); }
.spec span { font-size: 12px; font-weight: 600; letter-spacing: .08em; text-transform: uppercase; color: var(--muted); }
.spec b { display: block; font: 600 24px var(--font-display); letter-spacing: -0.02em; margin-top: 4px; }
.case { display: grid; grid-template-columns: 7fr 5fr; gap: clamp(32px, 5vw, 72px); align-items: start; }
.case h2 { font-size: clamp(30px, 3.4vw, 46px); margin-bottom: 18px; }
.timeline { list-style: none; padding: 0; margin: 0; border-left: 2px solid var(--mist); }
.timeline li { padding: 0 0 26px 26px; position: relative; }
.timeline li::before { content: ""; position: absolute; left: -7px; top: 6px; width: 12px; height: 12px; border-radius: 50%; background: var(--blue); box-shadow: 0 0 0 4px #fff; }
.timeline b { display: block; font-family: var(--font-display); }
.timeline span { color: var(--muted); font-size: 15px; }
.duo { display: grid; grid-template-columns: 1fr 1fr; gap: var(--gutter); }

/* company */
.numbers { display: grid; grid-template-columns: repeat(4, 1fr); gap: var(--gutter); }
.number { padding: 26px; }
.number b { display: block; font: 600 clamp(36px, 4vw, 56px) var(--font-display); letter-spacing: -0.04em; background: linear-gradient(90deg, var(--blue), #3fb4e8); -webkit-background-clip: text; background-clip: text; color: transparent; }
.number span { color: var(--steel); font-weight: 600; font-size: 15px; }
.certs { display: grid; grid-template-columns: repeat(4, 1fr); gap: 14px; }
.cert { background: #fff; border: 1px dashed rgba(68, 84, 106, .35); border-radius: 14px; padding: 20px; }
.cert b { font-family: var(--font-display); font-size: 20px; display: block; }
.cert span { color: var(--muted); font-size: 14px; }

/* systems page */
.sys-table { width: 100%; border-collapse: separate; border-spacing: 0; background: #fff; border-radius: var(--radius); overflow: hidden; border: 1px solid rgba(68, 84, 106, .12); }
.sys-table th, .sys-table td { padding: 16px 20px; text-align: left; border-bottom: 1px solid rgba(68, 84, 106, .1); font-size: 15px; }
.sys-table th { background: var(--mist); font: 600 13px var(--font-body); letter-spacing: .06em; text-transform: uppercase; color: var(--steel); }
.sys-table tr:last-child td { border-bottom: 0; }
.sys-table td:first-child { font-family: var(--font-display); font-weight: 600; }
.sys-table tbody tr:hover { background: #f1f7fb; }
.table-wrap { overflow-x: auto; }
.faq { max-width: 900px; display: grid; gap: 10px; }
.faq details { background: #fff; border: 1px solid rgba(68, 84, 106, .12); border-radius: 14px; padding: 20px 24px; }
.faq summary { cursor: pointer; list-style: none; display: block; position: relative; padding-right: 36px; font: 600 18px var(--font-display); letter-spacing: -0.01em; }
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after { content: "+"; position: absolute; right: 0; top: -2px; width: 28px; height: 28px; border-radius: 8px; background: var(--mist); display: grid; place-items: center; color: var(--blue); transition: transform .3s; }
.faq details[open] summary::after { transform: rotate(45deg); }
.faq details p { margin: 12px 0 0; color: var(--muted); }

/* contact */
.rfq { display: grid; grid-template-columns: 7fr 4fr; gap: var(--gutter); align-items: start; }
.form-card { background: #fff; border-radius: var(--radius); border: 1px solid rgba(68, 84, 106, .12); padding: clamp(24px, 3.4vw, 44px); }
.form { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; }
.field { display: flex; flex-direction: column; gap: 6px; }
.field--full { grid-column: 1 / -1; }
.field label { font-size: 14px; font-weight: 600; color: var(--steel); }
.field input, .field select, .field textarea { font: 400 16px var(--font-body); color: var(--ink); background: var(--white); border: 1px solid rgba(68, 84, 106, .2); border-radius: 10px; padding: 13px 14px; appearance: none; }
.field textarea { min-height: 130px; resize: vertical; }
.field input:focus, .field select:focus, .field textarea:focus { outline: none; border-color: var(--blue); box-shadow: 0 0 0 3px rgba(10, 132, 255, .15); }
.form-note { grid-column: 1 / -1; background: #e8f3ff; color: #0a5ab8; border-radius: 10px; padding: 14px 16px; margin: 0; }
.side-card { padding: 28px; }
.side-card h3 { font-size: 22px; margin-bottom: 10px; }
.side-card ul { margin: 0; padding-left: 18px; color: var(--steel); }

/* 6. Footer ---------------------------------------------------------------- */
.site-footer { background: var(--ink); color: #fff; margin-top: var(--space); padding: clamp(64px, 8vw, 110px) 0 28px; }
.f-cta { display: flex; justify-content: space-between; align-items: end; gap: 28px; flex-wrap: wrap; padding: clamp(28px, 4vw, 52px); border-radius: var(--radius); background: linear-gradient(120deg, #123049, #0a84ff); }
.f-cta h2 { font-size: clamp(28px, 3.6vw, 50px); }
.f-grid { display: grid; grid-template-columns: 2fr 1fr 1fr 1.3fr; gap: var(--gutter); padding: 56px 0 36px; font-size: 15px; }
.f-logo { font: 700 24px var(--font-display); margin: 0 0 8px; }
.f-muted { color: #9fb0c2; }
.f-grid a:hover { color: var(--glacier); }
.f-base { display: flex; justify-content: space-between; gap: 14px; flex-wrap: wrap; font-size: 13px; color: #7e8fa2; border-top: 1px solid rgba(255, 255, 255, .1); padding-top: 22px; }

/* 7. Responsive ------------------------------------------------------------ */
@media (max-width: 1080px) {
  .systems, .refs { grid-template-columns: repeat(2, 1fr); }
  .line { grid-template-columns: repeat(3, 1fr); row-gap: 36px; }
  .line::before { display: none; }
  .numbers, .certs, .spec-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 860px) {
  body { font-size: 16px; }
  .menu-btn { display: inline-flex; flex-direction: column; justify-content: center; gap: 6px; width: 46px; height: 46px; border-radius: 12px; border: 0; background: var(--mist); cursor: pointer; padding: 0 12px; position: relative; z-index: 60; }
  .menu-btn span:not(.sr) { display: block; height: 2px; background: var(--ink); border-radius: 2px; transition: transform .3s var(--ease); }
  .menu-open .menu-btn span:nth-child(1) { transform: translateY(4px) rotate(45deg); }
  .menu-open .menu-btn span:nth-child(2) { transform: translateY(-4px) rotate(-45deg); }
  .site-nav { position: fixed; inset: 0; z-index: 55; background: var(--sky); flex-direction: column; align-items: stretch; justify-content: center; padding: 0 var(--gutter); gap: 8px; opacity: 0; visibility: hidden; transition: opacity .3s, visibility .3s; }
  .site-nav a { font: 600 30px var(--font-display); padding: 14px 18px; background: rgba(255, 255, 255, .55); }
  .site-nav .nav-cta { margin: 10px 0 0; text-align: center; }
  .menu-open .site-nav { opacity: 1; visibility: visible; }
  .menu-open { overflow: hidden; }
  .hero-grid { grid-template-columns: 1fr; min-height: 0; padding-top: 48px; }
  .hero-visual img { max-height: 520px; }
  .s1 { left: 0; top: 8%; } .s2 { right: 0; } .s3 { display: none; }
  .systems, .refs, .case, .duo, .rfq, .form { grid-template-columns: 1fr; }
  .f-grid { grid-template-columns: 1fr 1fr; }
  .f-grid > :first-child { grid-column: 1 / -1; }
}
@media (max-width: 520px) {
  .line, .numbers, .certs { grid-template-columns: 1fr; }
  .stat { min-width: 0; padding: 12px 14px; }
  .stat b { font-size: 22px; }
}
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { transition: none !important; animation: none !important; }
}

/* grid children holding form controls must be allowed to shrink on phones */
.contact > *, .rfq > *, .form > *, .field { min-width: 0; }
.field input, .field select, .field textarea { min-width: 0; max-width: 100%; }