/* Барспром — Вариант «Чертёж» (premium industrial blueprint) */

:root {
  --bg: #f1efe8;
  --surface: #ffffff;
  --surface-2: #e8e5db;
  --text: #14171a;
  --text-dim: #565c60;
  --border: #d9d5c9;
  --accent: #3e6e8e;
  --accent-soft: #dfe9ee;
  --accent-2: #b8722e;
  --accent-2-soft: #f3e4d3;
  --grid-line: rgba(20, 23, 26, 0.06);
  --shadow: 0 20px 44px -28px rgba(20, 23, 26, 0.28);
  --radius-lg: 28px;
  --radius-md: 16px;
  --radius-sm: 10px;
  --font-display: "Unbounded", "Segoe UI", sans-serif;
  --font-body: "Manrope", "Segoe UI", sans-serif;
  --font-mono: "IBM Plex Mono", "Courier New", monospace;
}

@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --bg: #14171a;
    --surface: #1b1f23;
    --surface-2: #23282d;
    --text: #eceeef;
    --text-dim: #9aa1a6;
    --border: #33393e;
    --accent: #86b0cc;
    --accent-soft: #263540;
    --accent-2: #dda05e;
    --accent-2-soft: #3a2c1d;
    --grid-line: rgba(236, 238, 239, 0.07);
    --shadow: 0 24px 48px -24px rgba(0, 0, 0, 0.55);
  }
}

:root[data-theme="dark"] {
  --bg: #14171a;
  --surface: #1b1f23;
  --surface-2: #23282d;
  --text: #eceeef;
  --text-dim: #9aa1a6;
  --border: #33393e;
  --accent: #86b0cc;
  --accent-soft: #263540;
  --accent-2: #dda05e;
  --accent-2-soft: #3a2c1d;
  --grid-line: rgba(236, 238, 239, 0.07);
  --shadow: 0 24px 48px -24px rgba(0, 0, 0, 0.55);
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

img, svg { max-width: 100%; display: block; }

a { color: inherit; }

.wrap {
  max-width: 1240px;
  margin: 0 auto;
  padding: 0 28px;
}

.blueprint-field {
  position: relative;
}
.blueprint-field::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(var(--grid-line) 1px, transparent 1px),
    linear-gradient(90deg, var(--grid-line) 1px, transparent 1px);
  background-size: 56px 56px;
  pointer-events: none;
  z-index: 0;
}

/* Header */
.site-header {
  position: sticky;
  top: 0;
  z-index: 40;
  background: color-mix(in srgb, var(--bg) 86%, transparent);
  backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--border);
}
.site-header .wrap {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: 18px;
  padding-bottom: 18px;
}
.brand {
  display: flex;
  align-items: center;
  gap: 12px;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.05rem;
  letter-spacing: -0.01em;
  text-decoration: none;
}
.brand-mark {
  width: 34px; height: 34px;
  flex-shrink: 0;
}
.brand small {
  display: block;
  font-family: var(--font-mono);
  font-size: 0.62rem;
  font-weight: 400;
  letter-spacing: 0.14em;
  color: var(--text-dim);
  text-transform: uppercase;
  margin-top: 2px;
}
.main-nav { display: flex; align-items: center; gap: 30px; }
.main-nav a {
  text-decoration: none;
  font-size: 0.92rem;
  color: var(--text-dim);
  transition: color .25s cubic-bezier(.16,1,.3,1);
  position: relative;
}
.main-nav a:hover, .main-nav a[aria-current="page"] { color: var(--text); }
.main-nav a[aria-current="page"]::after {
  content: "";
  position: absolute; left: 0; right: 0; bottom: -20px;
  height: 2px; background: var(--accent);
}
.nav-cta {
  padding: 10px 20px;
  border-radius: 999px;
  background: var(--text);
  color: var(--bg);
  font-size: 0.88rem;
  font-weight: 600;
  text-decoration: none;
  transition: transform .25s cubic-bezier(.16,1,.3,1);
}
.nav-cta:hover { transform: translateY(-1px); }
.menu-toggle {
  display: none;
  background: none; border: 1px solid var(--border);
  border-radius: 10px; padding: 8px 10px; cursor: pointer;
}
.menu-toggle svg { stroke: var(--text); }

@media (max-width: 860px) {
  .main-nav { position: fixed; inset: 68px 0 0 0; background: var(--bg); flex-direction: column;
    align-items: flex-start; padding: 24px 28px; gap: 22px; transform: translateY(-8px); opacity: 0;
    pointer-events: none; transition: opacity .3s, transform .3s; border-top: 1px solid var(--border); }
  .main-nav.open { opacity: 1; transform: translateY(0); pointer-events: auto; }
  .main-nav a[aria-current="page"]::after { bottom: -6px; }
  .menu-toggle { display: inline-flex; }
}

/* Eyebrow */
.eyebrow {
  display: inline-flex; align-items: center; gap: 8px;
  font-family: var(--font-mono);
  font-size: 0.7rem; letter-spacing: 0.18em; text-transform: uppercase;
  color: var(--accent);
  padding: 6px 12px 6px 8px;
  border: 1px solid var(--accent);
  border-radius: 999px;
  background: var(--accent-soft);
}
.eyebrow span.dot { width: 6px; height: 6px; border-radius: 50%; background: var(--accent); }

/* Hero */
.hero {
  position: relative;
  padding: 64px 0 88px;
  overflow: hidden;
}
.hero-grid {
  display: grid;
  grid-template-columns: 1.05fr 0.95fr;
  gap: 56px;
  align-items: center;
  position: relative; z-index: 1;
}
.hero h1 {
  font-family: var(--font-display);
  font-size: clamp(2.2rem, 4.2vw, 3.6rem);
  line-height: 1.06;
  letter-spacing: -0.015em;
  margin: 22px 0 20px;
  text-wrap: balance;
}
.hero p.lead {
  font-size: 1.08rem;
  color: var(--text-dim);
  max-width: 46ch;
  margin: 0 0 32px;
}
.hero-actions { display: flex; gap: 14px; flex-wrap: wrap; }
.btn {
  display: inline-flex; align-items: center; gap: 10px;
  padding: 14px 24px;
  border-radius: 999px;
  font-weight: 600; font-size: 0.95rem;
  text-decoration: none;
  transition: transform .25s cubic-bezier(.16,1,.3,1), background .25s;
}
.btn-primary { background: var(--text); color: var(--bg); }
.btn-primary:hover { transform: translateY(-2px); }
.btn-primary .ic {
  width: 26px; height: 26px; border-radius: 999px;
  background: color-mix(in srgb, var(--bg) 18%, transparent);
  display: inline-flex; align-items: center; justify-content: center;
}
.btn-ghost {
  border: 1px solid var(--border); color: var(--text);
  background: transparent;
}
.btn-ghost:hover { border-color: var(--text); }

.hero-figure {
  position: relative;
  border-radius: var(--radius-lg);
  border: 1px solid var(--border);
  background: var(--surface);
  padding: 8px;
  box-shadow: var(--shadow);
}
.hero-figure-inner {
  border-radius: calc(var(--radius-lg) - 8px);
  background: var(--surface-2);
  aspect-ratio: 4/3.4;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  position: relative;
}
.hero-figure svg { width: 78%; }
.hero-figure figcaption {
  position: absolute;
  left: 18px; bottom: 16px;
  font-family: var(--font-mono);
  font-size: 0.68rem;
  letter-spacing: 0.08em;
  color: var(--text-dim);
  background: color-mix(in srgb, var(--surface) 82%, transparent);
  padding: 6px 10px;
  border-radius: 8px;
  border: 1px solid var(--border);
}
.draw-line {
  stroke-dasharray: 900;
  stroke-dashoffset: 900;
  animation: draw 2.2s cubic-bezier(.65,0,.35,1) forwards;
}
@media (prefers-reduced-motion: reduce) {
  .draw-line { animation: none; stroke-dashoffset: 0; }
}
@keyframes draw { to { stroke-dashoffset: 0; } }

/* Stat strip */
.stat-strip {
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}
.stat-strip .wrap {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
}
.stat {
  padding: 26px 24px;
  border-left: 1px solid var(--border);
}
.stat:first-child { border-left: none; }
.stat .num {
  font-family: var(--font-mono);
  font-size: 1.7rem;
  font-variant-numeric: tabular-nums;
  color: var(--text);
}
.stat .label {
  font-size: 0.82rem; color: var(--text-dim); margin-top: 4px;
}
@media (max-width: 760px) {
  .stat-strip .wrap { grid-template-columns: repeat(2, 1fr); }
  .stat:nth-child(3) { border-left: none; }
}

/* Section rhythm */
.section { padding: 88px 0; }
.section-tight { padding: 56px 0; }
.section-head {
  display: flex; justify-content: space-between; align-items: flex-end;
  gap: 40px; margin-bottom: 44px;
}
.section-head h2 {
  font-family: var(--font-display);
  font-size: clamp(1.7rem, 2.6vw, 2.3rem);
  letter-spacing: -0.01em;
  margin: 14px 0 0;
  text-wrap: balance;
  max-width: 20ch;
}
.section-head p { color: var(--text-dim); max-width: 42ch; margin: 0; }
@media (max-width: 760px) {
  .section-head { flex-direction: column; align-items: flex-start; gap: 12px; }
}

/* Editorial split */
.split {
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
  gap: 64px;
  align-items: start;
}
.split.reverse { grid-template-columns: 1.1fr 0.9fr; }
.split.reverse .split-media { order: 2; }
@media (max-width: 860px) {
  .split, .split.reverse { grid-template-columns: 1fr; }
  .split.reverse .split-media { order: 0; }
}

/* Cards */
.card-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1px;
  background: var(--border);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  overflow: hidden;
}
.card {
  background: var(--surface);
  padding: 32px 28px;
}
.card .ic {
  width: 42px; height: 42px;
  color: var(--accent);
  margin-bottom: 18px;
}
.card h3 {
  font-family: var(--font-display);
  font-size: 1.08rem;
  margin: 0 0 10px;
  letter-spacing: -0.005em;
}
.card p { color: var(--text-dim); margin: 0; font-size: 0.94rem; }
@media (max-width: 860px) { .card-grid { grid-template-columns: 1fr; } }

/* Doppelrand feature panel */
.panel {
  border-radius: var(--radius-lg);
  background: var(--surface-2);
  border: 1px solid var(--border);
  padding: 6px;
}
.panel-inner {
  border-radius: calc(var(--radius-lg) - 6px);
  background: var(--surface);
  padding: 40px;
}
@media (max-width: 640px) { .panel-inner { padding: 26px; } }

/* Photo placeholder */
.photo-slot {
  position: relative;
  border-radius: var(--radius-md);
  border: 1.5px dashed var(--border);
  background: var(--surface-2);
  aspect-ratio: var(--ar, 16/10);
  display: flex; flex-direction: column; align-items: center; justify-content: center;
  gap: 10px;
  text-align: center;
  padding: 24px;
}
.photo-slot .ic { width: 34px; height: 34px; color: var(--text-dim); }
.photo-slot .ph-label {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.06em;
  color: var(--text-dim);
  max-width: 26ch;
}
.photo-slot .ph-tag {
  position: absolute; top: 14px; left: 14px;
  font-family: var(--font-mono);
  font-size: 0.62rem; letter-spacing: 0.1em; text-transform: uppercase;
  color: var(--accent-2);
  background: var(--accent-2-soft);
  padding: 4px 8px; border-radius: 6px;
}

/* Table-ish spec list */
.spec-list { border-top: 1px solid var(--border); }
.spec-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
  padding: 18px 0;
  border-bottom: 1px solid var(--border);
}
.spec-row dt { color: var(--text-dim); font-size: 0.92rem; }
.spec-row dd { margin: 0; font-family: var(--font-mono); font-size: 0.92rem; font-variant-numeric: tabular-nums; }
@media (max-width: 600px) { .spec-row { grid-template-columns: 1fr; gap: 4px; } }

/* Timeline (portfolio) */
.case {
  display: grid; grid-template-columns: 1fr 1.4fr; gap: 40px;
  padding: 40px 0; border-top: 1px solid var(--border);
}
.case:last-child { border-bottom: 1px solid var(--border); }
.case .case-meta { font-family: var(--font-mono); font-size: 0.78rem; color: var(--text-dim); letter-spacing: 0.04em; }
.case h3 { font-family: var(--font-display); font-size: 1.3rem; margin: 10px 0 12px; }
.case-figures { display: flex; gap: 22px; margin-top: 18px; flex-wrap: wrap; }
.case-figures div { font-family: var(--font-mono); }
.case-figures .n { font-size: 1.2rem; color: var(--accent); display: block; }
.case-figures .l { font-size: 0.72rem; color: var(--text-dim); }
@media (max-width: 760px) { .case { grid-template-columns: 1fr; } }

/* Form */
.form-panel { display: grid; grid-template-columns: 1fr 1fr; gap: 60px; }
@media (max-width: 900px) { .form-panel { grid-template-columns: 1fr; } }
.field { display: flex; flex-direction: column; gap: 8px; margin-bottom: 20px; }
.field label { font-size: 0.86rem; color: var(--text-dim); }
.field input, .field select, .field textarea {
  font-family: var(--font-body);
  font-size: 0.96rem;
  padding: 13px 14px;
  border-radius: 10px;
  border: 1px solid var(--border);
  background: var(--surface);
  color: var(--text);
}
.field input:focus, .field select:focus, .field textarea:focus {
  outline: 2px solid var(--accent); outline-offset: 1px;
}
.field .hint { font-size: 0.78rem; color: var(--text-dim); }
.upload-drop {
  border: 1.5px dashed var(--border);
  border-radius: 12px;
  padding: 22px;
  text-align: center;
  color: var(--text-dim);
  font-size: 0.88rem;
  background: var(--surface-2);
}
.upload-drop strong { color: var(--text); }

/* Reveal */
.reveal {
  opacity: 1;
  transform: none;
}
@media (prefers-reduced-motion: no-preference) {
  .reveal { transform: translateY(18px); transition: transform .8s cubic-bezier(.16,1,.3,1); }
  .reveal.in { transform: none; }
}

/* Footer */
.site-footer { border-top: 1px solid var(--border); padding: 56px 0 30px; }
.footer-grid { display: grid; grid-template-columns: 1.4fr 1fr 1fr 1fr; gap: 40px; }
.footer-grid h4 { font-size: 0.82rem; text-transform: uppercase; letter-spacing: 0.08em; color: var(--text-dim); margin: 0 0 14px; }
.footer-grid ul { list-style: none; padding: 0; margin: 0; display: flex; flex-direction: column; gap: 10px; }
.footer-grid a { text-decoration: none; font-size: 0.92rem; color: var(--text); }
.footer-grid a:hover { color: var(--accent); }
.footer-bottom {
  margin-top: 44px; padding-top: 22px; border-top: 1px solid var(--border);
  display: flex; justify-content: space-between; flex-wrap: wrap; gap: 12px;
  font-size: 0.78rem; color: var(--text-dim); font-family: var(--font-mono);
}
@media (max-width: 760px) { .footer-grid { grid-template-columns: 1fr 1fr; } }

.badge-row { display: flex; gap: 10px; flex-wrap: wrap; margin-top: 18px; }
.badge {
  font-family: var(--font-mono); font-size: 0.7rem; letter-spacing: 0.05em;
  padding: 6px 10px; border-radius: 8px; border: 1px solid var(--border); color: var(--text-dim);
}

.crumb {
  font-family: var(--font-mono); font-size: 0.72rem; letter-spacing: 0.06em;
  color: var(--text-dim); text-transform: uppercase; margin-bottom: 14px;
}
.crumb a { color: var(--text-dim); text-decoration: none; }
.crumb a:hover { color: var(--accent); }

.page-hero {
  padding: 52px 0 40px;
  border-bottom: 1px solid var(--border);
}
.page-hero h1 {
  font-family: var(--font-display);
  font-size: clamp(1.9rem, 3.4vw, 2.7rem);
  letter-spacing: -0.01em;
  margin: 10px 0 16px;
  max-width: 18ch;
}
.page-hero p { color: var(--text-dim); max-width: 56ch; font-size: 1.02rem; }

.filter-row { display: flex; gap: 10px; flex-wrap: wrap; margin-bottom: 36px; }
.filter-chip {
  font-family: var(--font-mono); font-size: 0.78rem; letter-spacing: 0.04em;
  padding: 9px 16px; border-radius: 999px; border: 1px solid var(--border);
  color: var(--text-dim); text-decoration: none; background: var(--surface);
}
.filter-chip.active { color: var(--bg); background: var(--text); border-color: var(--text); }

.cat-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 24px; }
@media (max-width: 760px) { .cat-grid { grid-template-columns: 1fr; } }
.cat-card {
  border: 1px solid var(--border); border-radius: var(--radius-md);
  padding: 30px; background: var(--surface);
}
.cat-card .tag {
  display: inline-block; font-family: var(--font-mono); font-size: 0.68rem;
  letter-spacing: 0.08em; text-transform: uppercase; color: var(--accent);
  background: var(--accent-soft); padding: 4px 10px; border-radius: 6px; margin-bottom: 14px;
}
.cat-card h3 { font-family: var(--font-display); font-size: 1.2rem; margin: 0 0 10px; }
.cat-card p { color: var(--text-dim); font-size: 0.92rem; margin: 0 0 16px; }
.cat-card ul { margin: 0; padding-left: 18px; color: var(--text-dim); font-size: 0.88rem; }
.cat-card ul li { margin-bottom: 4px; }

.cta-band {
  border-radius: var(--radius-lg);
  background: var(--text);
  color: var(--bg);
  padding: 56px;
  display: flex; align-items: center; justify-content: space-between; gap: 32px; flex-wrap: wrap;
}
.cta-band h2 { font-family: var(--font-display); font-size: 1.7rem; margin: 0 0 8px; max-width: 22ch; }
.cta-band p { margin: 0; opacity: 0.72; max-width: 40ch; }
.cta-band .btn-primary { background: var(--bg); color: var(--text); }
.cta-band .btn-primary .ic { background: color-mix(in srgb, var(--text) 12%, transparent); }

.map-frame {
  border-radius: var(--radius-md); border: 1px solid var(--border);
  aspect-ratio: 16/8; background: var(--surface-2);
  display: flex; align-items: center; justify-content: center; color: var(--text-dim);
  font-family: var(--font-mono); font-size: 0.82rem; flex-direction: column; gap: 8px;
}