/* BRAIELS TOV — Kyiv building-materials & finishing supply.
   Bespoke stylesheet, prefix brl-. Architectural / blueprint identity.
   Not shared with, or derived from, any sibling site. */

:root {
  --brl-bg:        #e9edf1;   /* cool concrete */
  --brl-bg-2:      #dfe4ea;
  --brl-surface:   #ffffff;
  --brl-panel:     #f4f6f9;
  --brl-ink:       #12161c;   /* graphite */
  --brl-ink-2:     #4b545f;   /* muted slate */
  --brl-ink-3:     #78828d;
  --brl-line:      #d3d9e0;
  --brl-line-2:    #bac2cc;
  --brl-steel:     #163a52;   /* deep steel blue (primary) */
  --brl-steel-2:   #21567a;
  --brl-steel-3:   #0f2b3d;
  --brl-clay:      #c2532a;   /* terracotta accent */
  --brl-clay-2:    #dd6f3f;
  --brl-clay-soft: rgba(194, 83, 42, .10);
  --brl-max:       1160px;
  --brl-sans: system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --brl-mono: ui-monospace, "Cascadia Mono", "SFMono-Regular", "Roboto Mono", Consolas, monospace;
  --brl-r: 5px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  font-family: var(--brl-sans);
  color: var(--brl-ink);
  background: var(--brl-bg);
  line-height: 1.62;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}
img, svg { max-width: 100%; display: block; }
a { color: inherit; }
h1, h2, h3, h4 { line-height: 1.12; }

/* ---------- accessibility ---------- */
.brl-skip {
  position: absolute; left: -999px; top: 0;
  background: var(--brl-clay); color: #fff; padding: .65rem 1.1rem;
  z-index: 60; border-radius: 0 0 var(--brl-r) 0; font-weight: 600;
}
.brl-skip:focus { left: 0; top: 0; }
:focus-visible { outline: 3px solid var(--brl-clay); outline-offset: 2px; }

/* ---------- layout helpers ---------- */
.brl-wrap { width: 100%; max-width: var(--brl-max); margin: 0 auto; padding: 0 1.6rem; }

/* ---------- top bar ---------- */
.brl-head {
  position: sticky; top: 0; z-index: 50;
  background: rgba(233,237,241,.94);
  backdrop-filter: saturate(1.15) blur(8px);
  border-bottom: 1px solid var(--brl-line);
}
.brl-head::before { /* clay top edge */
  content: ""; display: block; height: 3px;
  background: linear-gradient(90deg, var(--brl-clay) 0 42%, var(--brl-steel) 42% 100%);
}
.brl-head-in {
  max-width: var(--brl-max); margin: 0 auto; padding: .8rem 1.6rem;
  display: flex; align-items: center; gap: 1.2rem;
}
.brl-brand { display: flex; align-items: center; gap: .68rem; text-decoration: none; }
.brl-brand-mark { width: 38px; height: 38px; flex: none; }
.brl-brand-txt { display: flex; flex-direction: column; line-height: 1; }
.brl-brand-txt b {
  font-size: 1.12rem; font-weight: 800; letter-spacing: .12em;
  text-transform: uppercase; color: var(--brl-ink);
}
.brl-brand-txt span {
  font-size: .6rem; letter-spacing: .28em; text-transform: uppercase;
  color: var(--brl-ink-3); margin-top: 4px;
}
.brl-head-sp { flex: 1; }
.brl-nav { display: flex; gap: .3rem; align-items: center; }
.brl-nav a {
  text-decoration: none; font-size: .82rem; font-weight: 600;
  letter-spacing: .04em; text-transform: uppercase;
  color: var(--brl-ink-2); padding: .5rem .8rem; border-radius: var(--brl-r);
}
.brl-nav a:hover { color: var(--brl-ink); background: var(--brl-bg-2); }
.brl-nav a[aria-current="page"] { color: var(--brl-clay); box-shadow: inset 0 -2px 0 var(--brl-clay); }
.brl-nav-cta {
  background: var(--brl-steel) !important; color: #fff !important;
  box-shadow: none !important;
}
.brl-nav-cta:hover { background: var(--brl-steel-2) !important; }
.brl-burger {
  display: none; margin-left: auto; background: var(--brl-surface);
  border: 1px solid var(--brl-line-2); border-radius: var(--brl-r);
  padding: .45rem .7rem; font: inherit; font-size: .78rem; font-weight: 700;
  letter-spacing: .08em; text-transform: uppercase; cursor: pointer; color: var(--brl-ink);
}

/* ---------- buttons ---------- */
.brl-btn {
  display: inline-flex; align-items: center; gap: .5rem;
  background: var(--brl-clay); color: #fff; text-decoration: none;
  padding: .82rem 1.5rem; border-radius: var(--brl-r);
  font-size: .86rem; font-weight: 700; letter-spacing: .05em; text-transform: uppercase;
  border: 1px solid var(--brl-clay); transition: background .15s ease, transform .15s ease;
}
.brl-btn:hover { background: var(--brl-clay-2); border-color: var(--brl-clay-2); }
.brl-btn:active { transform: translateY(1px); }
.brl-btn-steel { background: var(--brl-steel); border-color: var(--brl-steel); }
.brl-btn-steel:hover { background: var(--brl-steel-2); border-color: var(--brl-steel-2); }
.brl-btn-ghost {
  background: transparent; color: var(--brl-steel); border-color: var(--brl-line-2);
}
.brl-btn-ghost:hover { background: var(--brl-surface); border-color: var(--brl-steel); color: var(--brl-steel); }

/* ---------- blueprint hero ---------- */
.brl-hero { position: relative; padding: 4.4rem 0 3.4rem; border-bottom: 1px solid var(--brl-line); }
.brl-hero::before {
  content: ""; position: absolute; inset: 0; pointer-events: none; opacity: .55;
  background-image:
    linear-gradient(var(--brl-line) 1px, transparent 1px),
    linear-gradient(90deg, var(--brl-line) 1px, transparent 1px);
  background-size: 34px 34px; background-position: -1px -1px;
  -webkit-mask-image: linear-gradient(180deg, rgba(0,0,0,.9), transparent 78%);
          mask-image: linear-gradient(180deg, rgba(0,0,0,.9), transparent 78%);
}
.brl-hero-in { position: relative; z-index: 1; }
.brl-eyebrow {
  display: inline-flex; align-items: center; gap: .6rem;
  font-size: .72rem; font-weight: 700; letter-spacing: .2em; text-transform: uppercase;
  color: var(--brl-steel-2);
}
.brl-eyebrow::before { content: ""; width: 30px; height: 3px; background: var(--brl-clay); display: block; }
.brl-hero-grid { display: grid; grid-template-columns: 1.42fr 1fr; gap: 2.6rem; align-items: end; margin-top: 1.2rem; }
.brl-hero h1 {
  font-size: clamp(2.4rem, 6.2vw, 4.3rem); font-weight: 800; letter-spacing: -.02em;
  text-transform: uppercase; margin: .2rem 0 1.1rem; color: var(--brl-ink); max-width: 13ch;
}
.brl-hero h1 em { font-style: normal; color: var(--brl-clay); }
.brl-hero-lead { font-size: 1.1rem; color: var(--brl-ink-2); max-width: 48ch; margin: 0 0 .4rem; }
.brl-hero-actions { display: flex; flex-wrap: wrap; gap: .7rem; margin-top: 1.7rem; }

/* spec / bill-of-materials panel */
.brl-spec {
  background: var(--brl-surface); border: 1px solid var(--brl-line-2);
  border-radius: var(--brl-r); overflow: hidden;
  box-shadow: 0 22px 48px -34px rgba(18,22,28,.6);
}
.brl-spec-top {
  display: flex; justify-content: space-between; align-items: center;
  background: var(--brl-steel); color: #dbe7ef; padding: .7rem 1rem;
  font-family: var(--brl-mono); font-size: .72rem; letter-spacing: .1em; text-transform: uppercase;
}
.brl-spec-top b { color: var(--brl-clay-2); font-weight: 700; }
.brl-spec-rows { margin: 0; padding: .3rem 0; list-style: none; }
.brl-spec-rows li {
  display: flex; justify-content: space-between; gap: 1rem; align-items: baseline;
  padding: .58rem 1rem; border-bottom: 1px dashed var(--brl-line);
}
.brl-spec-rows li:last-child { border-bottom: 0; }
.brl-spec-cat { font-weight: 700; font-size: .9rem; }
.brl-spec-unit { font-family: var(--brl-mono); font-size: .74rem; color: var(--brl-ink-3); text-align: right; }
.brl-spec-foot {
  background: var(--brl-panel); border-top: 1px solid var(--brl-line);
  padding: .6rem 1rem; font-size: .74rem; color: var(--brl-ink-3); font-family: var(--brl-mono);
}

/* factual badge strip */
.brl-facts { background: var(--brl-steel-3); color: #cdd8e0; }
.brl-facts .brl-wrap { display: flex; flex-wrap: wrap; gap: 1.4rem 2.4rem; padding-top: 1.15rem; padding-bottom: 1.15rem; }
.brl-fact { display: flex; flex-direction: column; }
.brl-fact b { color: #fff; font-size: 1.02rem; font-weight: 700; letter-spacing: .02em; }
.brl-fact span { font-size: .72rem; letter-spacing: .12em; text-transform: uppercase; color: #8ea3b2; }

/* ---------- generic section ---------- */
.brl-sec { padding: 3.8rem 0; border-bottom: 1px solid var(--brl-line); }
.brl-sec-alt { background: var(--brl-bg-2); }
.brl-shead { display: flex; align-items: center; gap: 1rem; margin-bottom: .5rem; }
.brl-shead-ix {
  font-family: var(--brl-mono); font-size: 1rem; font-weight: 700; color: var(--brl-clay);
  border: 2px solid var(--brl-clay); border-radius: var(--brl-r);
  padding: .12rem .5rem; letter-spacing: .04em;
}
.brl-shead h2 {
  font-size: clamp(1.5rem, 3.6vw, 2.35rem); font-weight: 800; letter-spacing: -.01em;
  text-transform: uppercase; margin: 0; color: var(--brl-ink);
}
.brl-shead-rule { flex: 1; height: 2px; background: repeating-linear-gradient(90deg, var(--brl-line-2) 0 8px, transparent 8px 14px); }
.brl-shead-sub { color: var(--brl-ink-2); max-width: 64ch; margin: 0 0 2rem; font-size: 1.02rem; }

/* materials grid */
.brl-mat-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1.1rem; }
.brl-mat {
  position: relative; background: var(--brl-surface); border: 1px solid var(--brl-line);
  border-left: 4px solid var(--brl-clay); border-radius: var(--brl-r);
  padding: 1.4rem 1.35rem 1.3rem; transition: transform .16s ease, box-shadow .16s ease, border-color .16s ease;
}
.brl-mat:nth-child(3n-1) { border-left-color: var(--brl-steel); }
.brl-mat:nth-child(3n) { border-left-color: var(--brl-steel-2); }
.brl-mat:hover { transform: translateY(-4px); box-shadow: 0 16px 34px -24px rgba(18,22,28,.55); }
.brl-mat-ic { width: 42px; height: 42px; color: var(--brl-steel); margin-bottom: .85rem; }
.brl-mat h3 { font-size: 1.14rem; font-weight: 800; letter-spacing: .01em; margin: 0 0 .5rem; text-transform: uppercase; }
.brl-mat p { margin: 0 0 .8rem; color: var(--brl-ink-2); font-size: .93rem; }
.brl-mat-tags { display: flex; flex-wrap: wrap; gap: .35rem; }
.brl-tag {
  font-family: var(--brl-mono); font-size: .68rem; letter-spacing: .02em;
  background: var(--brl-panel); border: 1px solid var(--brl-line); color: var(--brl-ink-2);
  padding: .16rem .5rem; border-radius: 3px;
}

/* process flow — stepped */
.brl-flow { display: grid; grid-template-columns: repeat(5, 1fr); gap: 0; counter-reset: brl-step; }
.brl-step {
  position: relative; padding: 1.4rem 1.1rem 1.3rem; background: var(--brl-surface);
  border: 1px solid var(--brl-line); border-right: 0;
}
.brl-step:first-child { border-radius: var(--brl-r) 0 0 var(--brl-r); }
.brl-step:last-child { border-right: 1px solid var(--brl-line); border-radius: 0 var(--brl-r) var(--brl-r) 0; }
.brl-step-n {
  display: inline-flex; align-items: center; justify-content: center;
  width: 34px; height: 34px; border-radius: 50%; background: var(--brl-steel); color: #fff;
  font-weight: 800; font-size: .92rem; margin-bottom: .7rem;
}
.brl-step:nth-child(2) .brl-step-n,
.brl-step:nth-child(4) .brl-step-n { background: var(--brl-clay); }
.brl-step h4 { margin: 0 0 .35rem; font-size: .96rem; font-weight: 800; text-transform: uppercase; letter-spacing: .02em; }
.brl-step p { margin: 0; font-size: .85rem; color: var(--brl-ink-2); }

/* two-col about + register card */
.brl-about { display: grid; grid-template-columns: 1.35fr 1fr; gap: 2.6rem; align-items: start; }
.brl-about h2 { font-size: clamp(1.5rem, 3.4vw, 2.2rem); font-weight: 800; text-transform: uppercase; letter-spacing: -.01em; margin: .5rem 0 1rem; }
.brl-about p { color: var(--brl-ink-2); }
.brl-register {
  position: relative; background: var(--brl-steel); color: #e6eef3;
  border-radius: var(--brl-r); padding: 1.6rem 1.6rem 1.5rem;
  box-shadow: 0 20px 46px -30px rgba(15,43,61,.9);
}
.brl-register::before {
  content: "REG"; position: absolute; top: -1px; right: 1.3rem;
  background: var(--brl-clay); color: #fff; font-family: var(--brl-mono); font-size: .64rem;
  letter-spacing: .14em; padding: .28rem .55rem; border-radius: 0 0 4px 4px;
}
.brl-register h3 { margin: 0 0 1rem; font-size: .78rem; letter-spacing: .16em; text-transform: uppercase; color: #9fbccd; }
.brl-register dl { margin: 0; display: grid; grid-template-columns: auto 1fr; gap: .62rem 1.1rem; font-size: .9rem; }
.brl-register dt { color: #8fb0c3; font-size: .68rem; letter-spacing: .08em; text-transform: uppercase; padding-top: .12rem; }
.brl-register dd { margin: 0; }
.brl-register a { color: var(--brl-clay-2); text-decoration: none; }
.brl-register a:hover { text-decoration: underline; }

/* CTA band */
.brl-cta { background: var(--brl-clay); color: #fff2ea; position: relative; overflow: hidden; }
.brl-cta::after {
  content: ""; position: absolute; right: -60px; bottom: -70px; width: 260px; height: 260px;
  border: 30px solid rgba(255,255,255,.10); border-radius: var(--brl-r); transform: rotate(18deg);
}
.brl-cta .brl-wrap { position: relative; z-index: 1; padding-top: 3.4rem; padding-bottom: 3.4rem; text-align: center; }
.brl-cta h2 { font-size: clamp(1.7rem, 4.2vw, 2.7rem); font-weight: 800; text-transform: uppercase; letter-spacing: -.01em; margin: 0 0 .7rem; color: #fff; }
.brl-cta p { max-width: 54ch; margin: 0 auto 1.7rem; color: #ffe3d5; }
.brl-cta .brl-btn { background: var(--brl-steel); border-color: var(--brl-steel); }
.brl-cta .brl-btn:hover { background: var(--brl-steel-3); border-color: var(--brl-steel-3); }

/* ---------- footer ---------- */
.brl-foot { background: #0d1116; color: #9aa4af; padding: 3rem 0 1.8rem; }
.brl-foot-grid { display: grid; grid-template-columns: 1.8fr 1fr 1.3fr; gap: 2.2rem; }
.brl-foot h4 { color: #f0f3f6; font-size: .82rem; letter-spacing: .14em; text-transform: uppercase; margin: 0 0 .9rem; }
.brl-foot p { margin: .22rem 0; font-size: .88rem; }
.brl-foot ul { list-style: none; margin: 0; padding: 0; }
.brl-foot li { padding: .2rem 0; font-size: .88rem; }
.brl-foot a { color: #9aa4af; text-decoration: none; }
.brl-foot a:hover { color: var(--brl-clay-2); }
.brl-foot-reg { font-family: var(--brl-mono); font-size: .8rem; color: #b8c1cb; }
.brl-foot-reg b { color: #fff; font-weight: 700; }
.brl-foot-base {
  border-top: 1px solid #232a32; margin-top: 2.2rem; padding-top: 1.2rem;
  display: flex; justify-content: space-between; flex-wrap: wrap; gap: .5rem;
  font-size: .78rem; color: #6b7580;
}

/* ---------- content pages ---------- */
.brl-page-hero { padding: 3.4rem 0 2rem; border-bottom: 1px solid var(--brl-line); background: var(--brl-bg-2); }
.brl-page-hero h1 {
  font-size: clamp(2rem, 5vw, 3.1rem); font-weight: 800; text-transform: uppercase;
  letter-spacing: -.015em; margin: .7rem 0 .6rem;
}
.brl-page-hero p { color: var(--brl-ink-2); max-width: 62ch; margin: 0; font-size: 1.04rem; }
.brl-crumb { font-family: var(--brl-mono); font-size: .74rem; letter-spacing: .08em; text-transform: uppercase; color: var(--brl-ink-3); }
.brl-crumb a { color: var(--brl-steel-2); text-decoration: none; }

.brl-prose { max-width: 74ch; }
.brl-prose h2 { font-size: 1.35rem; font-weight: 800; text-transform: uppercase; letter-spacing: .01em; margin: 2.1rem 0 .6rem; }
.brl-prose h3 { font-size: 1.05rem; font-weight: 700; margin: 1.5rem 0 .4rem; }
.brl-prose p, .brl-prose li { color: var(--brl-ink-2); }
.brl-prose ul { padding-left: 1.15rem; }
.brl-prose li { margin: .3rem 0; }
.brl-prose a { color: var(--brl-steel-2); }
.brl-note {
  font-family: var(--brl-mono); font-size: .82rem; color: var(--brl-ink-2);
  border-left: 3px solid var(--brl-clay); background: var(--brl-clay-soft);
  padding: .7rem .9rem; border-radius: 0 var(--brl-r) var(--brl-r) 0; margin: 1.5rem 0;
}

/* detailed materials list (materials.html) */
.brl-catalog { display: grid; gap: 1.1rem; }
.brl-cat {
  background: var(--brl-surface); border: 1px solid var(--brl-line); border-radius: var(--brl-r);
  padding: 1.5rem 1.5rem 1.3rem; display: grid; grid-template-columns: 56px 1fr; gap: 1.2rem; align-items: start;
}
.brl-cat-ic { width: 48px; height: 48px; color: var(--brl-clay); }
.brl-cat h3 { margin: 0 0 .45rem; font-size: 1.18rem; font-weight: 800; text-transform: uppercase; }
.brl-cat p { margin: 0 0 .7rem; color: var(--brl-ink-2); font-size: .95rem; }
.brl-cat ul { margin: 0; padding: 0; list-style: none; display: flex; flex-wrap: wrap; gap: .4rem; }
.brl-cat li {
  font-size: .8rem; background: var(--brl-panel); border: 1px solid var(--brl-line);
  padding: .22rem .6rem; border-radius: 3px; color: var(--brl-ink-2);
}

/* sectors (projects.html) */
.brl-sector-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1rem; }
.brl-sector {
  background: var(--brl-surface); border: 1px solid var(--brl-line); border-radius: var(--brl-r);
  padding: 1.3rem; border-top: 4px solid var(--brl-steel);
}
.brl-sector:nth-child(even) { border-top-color: var(--brl-clay); }
.brl-sector h3 { margin: 0 0 .5rem; font-size: 1.05rem; font-weight: 800; text-transform: uppercase; }
.brl-sector p { margin: 0; color: var(--brl-ink-2); font-size: .9rem; }

/* commitments list */
.brl-commit { list-style: none; margin: 1.4rem 0 0; padding: 0; display: grid; gap: .7rem; }
.brl-commit li { display: grid; grid-template-columns: 26px 1fr; gap: .7rem; align-items: start; color: var(--brl-ink-2); }
.brl-commit svg { width: 22px; height: 22px; color: var(--brl-clay); margin-top: 2px; }

/* contact (contact.html) */
.brl-contact-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 1.4rem; }
.brl-contact-card {
  background: var(--brl-surface); border: 1px solid var(--brl-line); border-radius: var(--brl-r);
  padding: 1.5rem;
}
.brl-contact-card h3 { margin: 0 0 .5rem; font-size: 1.05rem; font-weight: 800; text-transform: uppercase; }
.brl-contact-card p { margin: .2rem 0; color: var(--brl-ink-2); }
.brl-contact-card a { color: var(--brl-steel-2); font-weight: 600; text-decoration: none; }
.brl-contact-card a:hover { text-decoration: underline; }
.brl-kv { font-family: var(--brl-mono); font-size: .82rem; color: var(--brl-ink-2); }

/* ---------- responsive ---------- */
@media (max-width: 900px) {
  .brl-nav { display: none; position: absolute; top: 100%; left: 0; right: 0;
    flex-direction: column; align-items: stretch; gap: .2rem;
    background: var(--brl-bg); border-bottom: 1px solid var(--brl-line); padding: .6rem 1.6rem 1rem; }
  .brl-nav.brl-open { display: flex; }
  .brl-nav a { padding: .7rem .4rem; }
  .brl-nav a[aria-current="page"] { box-shadow: inset 3px 0 0 var(--brl-clay); }
  .brl-burger { display: inline-block; }
  .brl-hero-grid, .brl-about, .brl-contact-grid { grid-template-columns: 1fr; }
  .brl-mat-grid, .brl-sector-grid { grid-template-columns: 1fr 1fr; }
  .brl-flow { grid-template-columns: 1fr; }
  .brl-step { border-right: 1px solid var(--brl-line) !important; border-bottom: 0; }
  .brl-step:first-child { border-radius: var(--brl-r) var(--brl-r) 0 0; }
  .brl-step:last-child { border-radius: 0 0 var(--brl-r) var(--brl-r); }
  .brl-step:not(:last-child) { border-bottom: 0; }
  .brl-foot-grid { grid-template-columns: 1fr; gap: 1.6rem; }
}
@media (max-width: 560px) {
  .brl-mat-grid, .brl-sector-grid { grid-template-columns: 1fr; }
  .brl-cat { grid-template-columns: 1fr; }
  .brl-cat-ic { width: 40px; height: 40px; }
  .brl-hero-actions .brl-btn { flex: 1 1 auto; justify-content: center; }
}

/* reveal-on-scroll (progressive, safe without JS) */
.brl-reveal { opacity: 0; transform: translateY(14px); transition: opacity .5s ease, transform .5s ease; }
.brl-reveal.brl-in { opacity: 1; transform: none; }
@media (prefers-reduced-motion: reduce) {
  .brl-reveal { opacity: 1; transform: none; transition: none; }
  html { scroll-behavior: auto; }
}