:root {
  --color-bg: #f1f5f8;
  --color-surface: #ffffff;
  --color-text: #0f1d2b;
  --color-text-soft: #45576a;
  --color-line: #d3dde6;
  --color-primary: #1b5f9e;
  --color-primary-dark: #154b7d;
  --color-cool-tint: #dceaf6;
  --color-secondary: #ad4317;
  --color-warm-tint: #f7e4d8;
  --color-accent: #5c6b79;
  --color-mid-tint: #e3e9ee;
  --color-star: #9a6200;
  --color-deep: #0f2a44;
  --color-on-deep: #ffffff;
  --color-on-deep-soft: #bccde0;
  --color-shadow: rgba(15, 29, 43, 0.12);
  --color-header-bg: rgba(241, 245, 248, 0.92);

  --font-head: "Avenir Next", "Avenir", "Segoe UI", "Helvetica Neue", Arial, sans-serif;
  --font-body: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --font-num: ui-monospace, "SF Mono", Menlo, Consolas, monospace;

  --r-sm: 10px;
  --r-md: 16px;
  --r-lg: 24px;
  --r-pill: 999px;
  --wrap: 1120px;
}

*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  background: var(--color-bg);
  color: var(--color-text);
  font: 17px/1.6 var(--font-body);
}
img { max-width: 100%; display: block; }
a { color: var(--color-primary); }
a:focus-visible, button:focus-visible, input:focus-visible, textarea:focus-visible, select:focus-visible {
  outline: 3px solid var(--color-primary);
  outline-offset: 3px;
}
h1, h2, h3 {
  font-family: var(--font-head);
  font-weight: 700;
  letter-spacing: -0.02em;
  line-height: 1.08;
  margin: 0;
}
p { margin: 0; }
.wrap { width: min(100% - 40px, var(--wrap)); margin-inline: auto; }

/* ---------- header ---------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  background: var(--color-header-bg);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--color-line);
}
.header-row {
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: center;
  gap: 16px;
  min-height: 64px;
}
.header-phone {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  min-height: 40px;
  font-family: var(--font-num);
  font-weight: 600;
  font-size: 15px;
  color: var(--color-text);
  text-decoration: none;
  white-space: nowrap;
}
.header-phone span {
  font-family: var(--font-body);
  font-size: 13px;
  font-weight: 600;
  color: var(--color-on-deep);
  background: var(--color-primary);
  border-radius: var(--r-pill);
  padding: 3px 10px;
}
.header-phone:hover { color: var(--color-primary); }
.brand {
  justify-self: center;
  font-family: var(--font-head);
  font-weight: 700;
  font-size: 17px;
  letter-spacing: -0.01em;
  color: var(--color-text);
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  min-height: 40px;
}
.nav { display: flex; gap: 4px; }
.nav a {
  display: inline-flex;
  align-items: center;
  min-height: 40px;
  padding: 0 12px;
  border-radius: var(--r-pill);
  color: var(--color-text-soft);
  text-decoration: none;
  font-size: 15px;
  font-weight: 600;
}
.nav a:hover { color: var(--color-text); background: var(--color-mid-tint); }
.nav a[aria-current="page"] { color: var(--color-text); background: var(--color-surface); box-shadow: inset 0 0 0 1px var(--color-line); }

/* ---------- buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 48px;
  padding: 0 22px;
  border-radius: var(--r-pill);
  font-weight: 700;
  font-size: 16px;
  text-decoration: none;
  border: 0;
  cursor: pointer;
  font-family: var(--font-body);
}
.btn-primary { background: var(--color-primary); color: var(--color-on-deep); box-shadow: 0 6px 18px var(--color-shadow); }
.btn-primary:hover { background: var(--color-primary-dark); }
.btn-quiet { background: transparent; color: var(--color-text); box-shadow: inset 0 0 0 2px var(--color-line); }
.btn-quiet:hover { box-shadow: inset 0 0 0 2px var(--color-accent); }
.btn-light { background: var(--color-on-deep); color: var(--color-deep); }

/* ---------- hero ---------- */
.hero { padding: 56px 0 72px; }
.hero-grid {
  display: grid;
  grid-template-columns: 1.05fr 0.95fr;
  gap: 48px;
  align-items: center;
}
.hero h1 { font-size: clamp(40px, 6.2vw, 72px); line-height: 0.98; }
.hero-sub {
  margin-top: 14px;
  font-size: 19px;
  font-weight: 600;
  color: var(--color-text-soft);
}
.hero-lead {
  margin-top: 28px;
  font-size: clamp(20px, 2.2vw, 24px);
  line-height: 1.4;
  max-width: 30ch;
}
.hot { color: var(--color-secondary); font-weight: 700; }
.cold { color: var(--color-primary); font-weight: 700; }
.num { font-family: var(--font-num); font-size: 0.92em; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 28px; }
.rating {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  margin-top: 22px;
  font-size: 15px;
  color: var(--color-text-soft);
}
.stars { color: var(--color-star); letter-spacing: 2px; font-size: 17px; }

.photo { margin: 0; }
.photo img {
  width: 100%;
  height: auto;
  border-radius: var(--r-lg);
  box-shadow: 0 18px 40px var(--color-shadow);
  aspect-ratio: 4 / 3;
  object-fit: cover;
}
.photo figcaption { margin-top: 10px; font-size: 14px; color: var(--color-text-soft); line-height: 1.4; }
.photo .stock-label {
  display: block;
  margin-top: 4px;
  font-size: 12px;
  color: var(--color-text-soft);
  opacity: 0.95;
  font-style: italic;
}

/* ---------- sections ---------- */
.section { padding: 80px 0; }
.section-white { background: var(--color-surface); border-block: 1px solid var(--color-line); }
.head { max-width: 640px; }
.head h2 { font-size: clamp(30px, 4vw, 44px); }
.head p { margin-top: 12px; color: var(--color-text-soft); font-size: 18px; }

/* about */
.about-grid {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: 56px;
  align-items: start;
}
.about-body p + p { margin-top: 16px; }
.about-body .head { margin-bottom: 24px; }
.facts {
  margin: 0;
  background: var(--color-bg);
  border-radius: var(--r-md);
  padding: 8px 24px;
}
.facts div { padding: 16px 0; border-bottom: 1px solid var(--color-line); }
.facts div:last-child { border-bottom: 0; }
.facts dt { font-size: 13px; font-weight: 700; color: var(--color-text-soft); }
.facts dd { margin: 4px 0 0; font-weight: 600; }
.facts a { display: inline-flex; min-height: 34px; align-items: center; }

/* ---------- climate chart (signature) ---------- */
.chart-card {
  margin-top: 36px;
  background: var(--color-surface);
  border-radius: var(--r-lg);
  padding: 32px 28px 24px;
  box-shadow: 0 1px 0 var(--color-line), 0 12px 32px var(--color-shadow);
}
.legend { display: flex; flex-wrap: wrap; gap: 10px 22px; font-size: 14px; color: var(--color-text-soft); margin-bottom: 36px; }
.legend span { display: inline-flex; align-items: center; gap: 8px; }
.legend i { width: 14px; height: 14px; border-radius: 4px; display: inline-block; }
.legend .k-heat { background: var(--color-secondary); }
.legend .k-mid { background: var(--color-accent); }
.legend .k-cool { background: var(--color-primary); }

.plot { position: relative; height: 260px; margin: 0 0 0 34px; }
.guide {
  position: absolute;
  left: 0;
  right: 0;
  bottom: calc((var(--t) - 30) / 65 * 100%);
  border-top: 1px dashed var(--color-line);
}
.guide b {
  position: absolute;
  left: -34px;
  top: -9px;
  font: 600 11px/1 var(--font-num);
  color: var(--color-text-soft);
}
.months {
  position: relative;
  display: grid;
  grid-template-columns: repeat(12, 1fr);
  gap: 6px;
  height: 100%;
}
.month { position: relative; }
.bar {
  position: absolute;
  left: 18%;
  right: 18%;
  bottom: calc((var(--lo) - 30) / 65 * 100%);
  height: calc((var(--hi) - var(--lo)) / 65 * 100%);
  border-radius: var(--r-pill);
  transform-origin: bottom;
}
.m-heat .bar { background: var(--color-secondary); }
.m-mid .bar { background: var(--color-accent); }
.m-cool .bar { background: var(--color-primary); }
.bar .hi, .bar .lo {
  position: absolute;
  left: 50%;
  transform: translateX(-50%);
  font: 600 11px/1 var(--font-num);
  color: var(--color-text);
  white-space: nowrap;
}
.bar .hi { bottom: calc(100% + 6px); }
.bar .lo { top: calc(100% + 6px); color: var(--color-text-soft); }
.month-names {
  display: grid;
  grid-template-columns: repeat(12, 1fr);
  gap: 6px;
  margin: 30px 0 0 34px;
  font-size: 12px;
  font-weight: 700;
  text-align: center;
  color: var(--color-text-soft);
}
.source { margin-top: 18px; font-size: 13px; color: var(--color-text-soft); }

/* season rows */
.seasons { margin-top: 40px; display: grid; gap: 14px; }
.season {
  display: grid;
  grid-template-columns: 190px 1fr;
  gap: 28px;
  padding: 24px 28px;
  border-radius: var(--r-md);
  align-items: start;
}
.season.s-heat { background: var(--color-warm-tint); }
.season.s-mid { background: var(--color-mid-tint); }
.season.s-cool { background: var(--color-cool-tint); }
.season h3 { font-size: 22px; }
.season .when { margin-top: 6px; font: 600 14px/1.3 var(--font-num); }
.s-heat .when { color: var(--color-secondary); }
.s-mid .when { color: var(--color-accent); }
.s-cool .when { color: var(--color-primary); }
.season ul { margin: 0; padding: 0; list-style: none; display: grid; grid-template-columns: 1fr 1fr; gap: 6px 28px; }
.season li { padding-left: 20px; position: relative; }
.season li::before { content: "•"; position: absolute; left: 4px; color: var(--color-text-soft); }

/* close */
.close { background: var(--color-deep); color: var(--color-on-deep); padding: 72px 0; }
.close-grid { display: grid; grid-template-columns: 1fr auto; gap: 32px; align-items: end; }
.close h2 { font-size: clamp(30px, 4.4vw, 48px); }
.close p { margin-top: 12px; color: var(--color-on-deep-soft); font-size: 18px; }
.close-phone {
  display: inline-flex;
  align-items: center;
  min-height: 56px;
  font: 700 clamp(26px, 3.6vw, 40px)/1 var(--font-num);
  color: var(--color-on-deep);
  text-decoration: none;
}
.close-phone:hover { text-decoration: underline; }
.close-actions { display: flex; flex-direction: column; align-items: flex-end; gap: 10px; }

.site-footer { padding: 28px 0 40px; font-size: 14px; color: var(--color-text-soft); }
.footer-row { display: flex; flex-wrap: wrap; justify-content: space-between; gap: 12px 24px; align-items: center; }
.footer-row a { color: var(--color-text-soft); display: inline-flex; min-height: 34px; align-items: center; }

/* ---------- page heads ---------- */
.page-head { padding: 56px 0 8px; }
.page-head h1 { font-size: clamp(38px, 5.6vw, 60px); }
.page-head p { margin-top: 14px; font-size: 19px; color: var(--color-text-soft); max-width: 46ch; }

/* ---------- services: system map ---------- */
.system-map {
  margin-top: 32px;
  background: var(--color-surface);
  border-radius: var(--r-lg);
  padding: 24px;
  box-shadow: 0 1px 0 var(--color-line), 0 12px 32px var(--color-shadow);
}
.system-map svg { width: 100%; height: auto; display: block; }
.system-map .node rect { fill: var(--color-bg); stroke: var(--color-line); stroke-width: 2; }
.system-map a:hover .node rect, .system-map a:focus .node rect { stroke: var(--color-primary); }
.system-map .node text { font: 700 17px var(--font-head); fill: var(--color-text); }
.system-map .node .n { font: 600 13px var(--font-num); fill: var(--color-text-soft); }
.system-map .link { stroke: var(--color-accent); stroke-width: 3; fill: none; }
.system-map .link.ref { stroke: var(--color-primary); stroke-dasharray: 8 6; }
.system-map .link.air { stroke: var(--color-secondary); }
.system-map .lbl { font: 600 13px var(--font-body); fill: var(--color-text-soft); }
.map-note { margin-top: 14px; font-size: 14px; color: var(--color-text-soft); }
.system-map .map-mobile { display: none; }

.part {
  display: grid;
  grid-template-columns: 80px 1fr;
  gap: 28px;
  padding: 44px 0;
  border-top: 1px solid var(--color-line);
  scroll-margin-top: 90px;
}
.part:first-of-type { border-top: 0; }
.part-num { font: 700 44px/1 var(--font-num); color: var(--color-line); }
.part h2 { font-size: clamp(26px, 3.2vw, 34px); }
.part .role { margin-top: 10px; color: var(--color-text-soft); font-size: 18px; max-width: 60ch; }
.part-cols { margin-top: 24px; display: grid; grid-template-columns: 1fr 1fr; gap: 28px; }
.part h3 { font-size: 16px; margin-bottom: 10px; }
.part ul { margin: 0; padding: 0; list-style: none; }
.part li { padding: 6px 0 6px 22px; position: relative; }
.part li::before { content: "•"; position: absolute; left: 6px; color: var(--color-text-soft); }
.part .with-photo { display: grid; grid-template-columns: 1fr 0.9fr; gap: 36px; align-items: start; margin-top: 24px; }
.part .with-photo .part-cols { margin-top: 0; grid-template-columns: 1fr; gap: 20px; }

/* ---------- contact ---------- */
.contact-grid { display: grid; grid-template-columns: 0.9fr 1.1fr; gap: 48px; padding: 40px 0 80px; align-items: start; }
.call-block { background: var(--color-deep); color: var(--color-on-deep); border-radius: var(--r-lg); padding: 32px; }
.call-block h2 { font-size: 24px; }
.call-block p { margin-top: 8px; color: var(--color-on-deep-soft); }
.call-block .close-phone { margin-top: 12px; font-size: clamp(26px, 3vw, 34px); }
.call-block .btn { margin-top: 16px; width: 100%; }
.info-list { margin: 20px 0 0; }
.info-list div { padding: 16px 4px; border-bottom: 1px solid var(--color-line); }
.info-list dt { font-size: 13px; font-weight: 700; color: var(--color-text-soft); }
.info-list dd { margin: 4px 0 0; font-weight: 600; }
.info-list a { display: inline-flex; min-height: 34px; align-items: center; }
.ready { margin-top: 24px; background: var(--color-surface); border-radius: var(--r-md); padding: 22px 24px; border: 1px solid var(--color-line); }
.ready h3 { font-size: 18px; }
.ready p { margin-top: 8px; color: var(--color-text-soft); font-size: 15px; }
.ready ul { margin: 12px 0 0; padding-left: 20px; }
.ready li { padding: 3px 0; }

.form-card { background: var(--color-surface); border-radius: var(--r-lg); padding: 32px; box-shadow: 0 1px 0 var(--color-line), 0 12px 32px var(--color-shadow); }
.form-card h2 { font-size: 26px; }
.form-card > p { margin-top: 8px; color: var(--color-text-soft); }
.form-card form { margin-top: 24px; display: grid; gap: 18px; }
.field label { display: block; font-weight: 700; font-size: 15px; margin-bottom: 6px; }
.field input, .field textarea, .field select {
  width: 100%;
  min-height: 48px;
  padding: 10px 14px;
  border-radius: var(--r-sm);
  border: 1.5px solid var(--color-line);
  background: var(--color-bg);
  color: var(--color-text);
  font: 16px/1.4 var(--font-body);
}
.field textarea { min-height: 120px; resize: vertical; }
.two { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; }

/* ---------- motion ---------- */
.js .reveal { opacity: 0; transform: translateY(16px); transition: opacity 0.5s ease, transform 0.5s ease; }
.js .reveal.is-in { opacity: 1; transform: none; }
.js .grow .bar { transform: scaleY(0); transition: transform 0.7s cubic-bezier(.2,.7,.2,1); }
.js .grow.is-in .bar { transform: scaleY(1); }
.js .grow .bar .hi, .js .grow .bar .lo { opacity: 0; transition: opacity 0.3s ease 0.6s; }
.js .grow.is-in .bar .hi, .js .grow.is-in .bar .lo { opacity: 1; }

@media (prefers-reduced-motion: reduce) {
  .js .reveal, .js .reveal.is-in { opacity: 1; transform: none; transition: none; }
  .js .grow .bar, .js .grow .bar .hi, .js .grow .bar .lo { transform: none; opacity: 1; transition: none; }
  html { scroll-behavior: auto; }
}

/* ---------- responsive ---------- */
@media (max-width: 900px) {
  .hero-grid, .about-grid, .contact-grid { grid-template-columns: 1fr; gap: 36px; }
  .season { grid-template-columns: 1fr; gap: 14px; }
  .close-grid { grid-template-columns: 1fr; align-items: start; }
  .close-actions { align-items: flex-start; }
  .part .with-photo { grid-template-columns: 1fr; }
}
@media (max-width: 720px) {
  .header-row { grid-template-columns: auto auto; justify-content: space-between; row-gap: 0; padding: 6px 0; }
  .brand { grid-column: 1 / -1; grid-row: 2; justify-self: start; min-height: 34px; font-size: 15px; color: var(--color-text-soft); }
  .nav a { padding: 0 7px; font-size: 14px; }
  .header-phone { font-size: 14px; }
  .header-phone span { display: none; }
  .system-map .map-desktop { display: none; }
  .system-map .map-mobile { display: block; }
}
@media (max-width: 600px) {
  body { font-size: 16px; }
  .hero { padding: 36px 0 56px; }
  .section { padding: 60px 0; }
  .season ul, .part-cols, .two { grid-template-columns: 1fr; }
  .part { grid-template-columns: 1fr; gap: 8px; padding: 36px 0; }
  .part-num { font-size: 30px; }
  .chart-card { padding: 24px 14px 18px; }
  .plot { height: 200px; margin-left: 26px; }
  .guide b { left: -26px; font-size: 10px; }
  .month-names { margin-left: 26px; gap: 2px; font-size: 10px; }
  .months { gap: 2px; }
  .bar { left: 22%; right: 22%; }
  .bar .hi, .bar .lo { font-size: 9.5px; }
  .season { padding: 20px; }
  .form-card, .call-block { padding: 24px 20px; }
  .btn { width: 100%; }
  .hero-actions .btn { width: 100%; }
  .close-actions .btn { width: 100%; }
}