/* ============================================================
   Ремонт квартиры — концепт как рабочий чертёж архитектора.
   Тёплая палитра материалов самой квартиры (шалфей, дуб,
   штукатурка) + чертёжный слой: миллиметровка, реперы,
   размерные линии, моноширинные аннотации, blueprint-синий.
   ============================================================ */

:root {
  /* поверхности — тёплая бумага чертежа */
  --plaster: #E7E2D5;   /* фон */
  --paper:   #F3EEE4;   /* карточки */
  --paper-2: #FBF8F1;   /* приподнятые поверхности */
  --ink:     #21221A;   /* текст */
  --ink-soft:#6B6959;   /* вторичный текст */

  /* материалы квартиры */
  --sage:      #6E7D55;  /* фасад кухни */
  --sage-deep: #46522E;  /* тёмный шалфей для текста */
  --oak:       #B8945F;  /* дуб */
  --graphite:  #4B4E52;  /* пол / диван */

  /* чертёжный слой */
  --blueprint:      #315468;  /* чертёжная синь — акцент структуры */
  --blueprint-soft: #6E93A6;
  --blueprint-line: rgba(49, 84, 104, .55);

  --line: rgba(33, 34, 26, .16);
  --line-strong: rgba(33, 34, 26, .30);
  --grid-line: rgba(49, 84, 104, .055);   /* миллиметровка */
  --grid-bold: rgba(49, 84, 104, .085);

  --shadow: 0 1px 2px rgba(33,34,26,.05), 0 14px 34px -20px rgba(33,34,26,.30);
  --shadow-lift: 0 2px 4px rgba(33,34,26,.07), 0 26px 54px -22px rgba(33,34,26,.42);

  --maxw: 1180px;
  --r: 6px;      /* чертёж — минимум скруглений */
  --r-lg: 10px;

  --ff-display: "Spectral", Georgia, serif;
  --ff-body: "Onest", system-ui, -apple-system, sans-serif;
  --ff-mono: "JetBrains Mono", ui-monospace, "SF Mono", Menlo, monospace;
}

:root[data-theme="dark"] {
  --plaster: #191C1E;
  --paper:   #212527;
  --paper-2: #282D2F;
  --ink:     #ECE7DB;
  --ink-soft:#9BA0A0;
  --sage:      #9DB07F;
  --sage-deep: #B7C99C;
  --oak:       #D4B788;
  --graphite:  #8A8D91;
  --blueprint:      #8FB6CB;
  --blueprint-soft: #6E93A6;
  --blueprint-line: rgba(143, 182, 203, .5);
  --line: rgba(236, 231, 219, .14);
  --line-strong: rgba(236, 231, 219, .28);
  --grid-line: rgba(143, 182, 203, .05);
  --grid-bold: rgba(143, 182, 203, .08);
  --shadow: 0 1px 2px rgba(0,0,0,.3), 0 16px 36px -20px rgba(0,0,0,.62);
  --shadow-lift: 0 2px 4px rgba(0,0,0,.36), 0 28px 56px -22px rgba(0,0,0,.72);
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; scroll-padding-top: 88px; }
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } }

body {
  margin: 0;
  background: var(--plaster);
  color: var(--ink);
  font-family: var(--ff-body);
  font-size: 17px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  overflow-x: hidden;
}

/* тонкая тканевая текстура фона */
body::before {
  content: "";
  position: fixed;
  inset: 0;
  z-index: -1;
  pointer-events: none;
  background-image: radial-gradient(circle at 1px 1px, rgba(43,42,37,.045) 1px, transparent 0);
  background-size: 22px 22px;
}
:root[data-theme="dark"] body::before {
  background-image: radial-gradient(circle at 1px 1px, rgba(255,255,255,.03) 1px, transparent 0);
}

img { max-width: 100%; display: block; }
a { color: inherit; }

.wrap { max-width: var(--maxw); margin: 0 auto; padding: 0 28px; }

/* ---------- моноширинные аннотации (размеры, коды, площади) ---------- */
.eyebrow {
  font-family: var(--ff-mono);
  font-size: 12px;
  letter-spacing: .16em;
  text-transform: uppercase;
  font-weight: 500;
  color: var(--blueprint);
  display: inline-flex;
  align-items: center;
  gap: .7em;
}
.eyebrow::before {
  content: "";
  width: 22px; height: 0;
  border-top: 1px solid currentColor;
  /* размерная засечка на конце */
  box-shadow: 0 -3px 0 -2px currentColor, 0 3px 0 -2px currentColor;
}

h1, h2, h3 { font-family: var(--ff-display); font-weight: 500; margin: 0; }

/* ---------- шапка — как штамп чертежа ---------- */
.topbar {
  position: sticky; top: 0; z-index: 50;
  backdrop-filter: saturate(1.3) blur(10px);
  background: color-mix(in srgb, var(--plaster) 84%, transparent);
  border-bottom: 1px solid transparent;
  transition: border-color .3s, background .3s;
}
.topbar.scrolled { border-bottom-color: var(--line); }
.topbar__inner {
  max-width: var(--maxw); margin: 0 auto; padding: 13px 28px;
  display: flex; align-items: center; justify-content: space-between; gap: 18px;
}
.brand { display: flex; align-items: baseline; gap: 11px; font-weight: 600; }
.brand b { font-family: var(--ff-display); font-weight: 600; font-size: 20px; letter-spacing: .01em; }
.brand span {
  font-family: var(--ff-mono); font-size: 11px; color: var(--blueprint);
  letter-spacing: .08em; padding: 3px 8px; border: 1px solid var(--line);
  border-radius: 999px;
}
.nav { display: flex; align-items: center; gap: 2px; }
.nav a {
  text-decoration: none; font-size: 14.5px; color: var(--ink-soft);
  padding: 7px 13px; border-radius: 6px; transition: color .2s, background .2s;
  white-space: nowrap;
}
.nav a:hover { color: var(--ink); background: color-mix(in srgb, var(--blueprint) 12%, transparent); }
.nav a.active { color: var(--blueprint); background: color-mix(in srgb, var(--blueprint) 15%, transparent); }

.theme-toggle {
  border: 1px solid var(--line-strong); background: transparent; color: var(--ink);
  width: 38px; height: 38px; border-radius: 6px; cursor: pointer;
  display: grid; place-items: center; flex: none; transition: background .2s, border-color .2s;
}
.theme-toggle:hover { background: color-mix(in srgb, var(--blueprint) 12%, transparent); border-color: var(--blueprint); }
.theme-toggle svg { width: 18px; height: 18px; }
.theme-toggle .sun { display: none; }
:root[data-theme="dark"] .theme-toggle .sun { display: block; }
:root[data-theme="dark"] .theme-toggle .moon { display: none; }

.nav a .sm { display: none; }
@media (max-width: 720px) {
  .nav a { padding: 6px 9px; font-size: 13px; }
}
@media (max-width: 560px) {
  .brand span { display: none; }
  .nav a .lg { display: none; }
  .nav a .sm { display: inline; }
  .nav a { padding: 6px 11px; }
}

/* ---------- реперные метки (crop marks) на чертёжных врезках ---------- */
.sheet { position: relative; }
.sheet::after {
  content: ""; position: absolute; inset: 9px; pointer-events: none;
  background:
    /* TL */ linear-gradient(var(--blueprint-line),var(--blueprint-line)) left top/14px 1px no-repeat,
             linear-gradient(var(--blueprint-line),var(--blueprint-line)) left top/1px 14px no-repeat,
    /* TR */ linear-gradient(var(--blueprint-line),var(--blueprint-line)) right top/14px 1px no-repeat,
             linear-gradient(var(--blueprint-line),var(--blueprint-line)) right top/1px 14px no-repeat,
    /* BL */ linear-gradient(var(--blueprint-line),var(--blueprint-line)) left bottom/14px 1px no-repeat,
             linear-gradient(var(--blueprint-line),var(--blueprint-line)) left bottom/1px 14px no-repeat,
    /* BR */ linear-gradient(var(--blueprint-line),var(--blueprint-line)) right bottom/14px 1px no-repeat,
             linear-gradient(var(--blueprint-line),var(--blueprint-line)) right bottom/1px 14px no-repeat;
}

/* ---------- hero ---------- */
.hero { padding: clamp(44px, 7vw, 88px) 0 clamp(36px, 5vw, 60px); }
.hero__grid {
  display: grid; grid-template-columns: 1.05fr .95fr; gap: clamp(28px, 5vw, 64px);
  align-items: center;
}
.hero__title {
  font-size: clamp(52px, 9vw, 112px);
  line-height: .9; letter-spacing: -.022em; margin: 20px 0 0;
}
.hero__title em { font-style: italic; color: var(--blueprint); }
.hero__lead {
  margin: 26px 0 0; max-width: 32ch; color: var(--ink-soft); font-size: 18px;
}

/* штамп-таблица с параметрами (title block) */
.hero__meta {
  margin-top: 32px; display: flex; flex-wrap: wrap;
  border: 1px solid var(--line); border-radius: var(--r);
  overflow: hidden; background: color-mix(in srgb, var(--paper-2) 55%, transparent);
}
.hero__meta div {
  display: flex; flex-direction: column; padding: 14px 22px 13px;
  border-right: 1px solid var(--line); flex: 1; min-width: 96px;
}
.hero__meta div:last-child { border-right: none; }
.hero__meta .num { font-family: var(--ff-display); font-size: 30px; line-height: 1; color: var(--ink); }
.hero__meta .lbl {
  font-family: var(--ff-mono); font-size: 10.5px; letter-spacing: .1em; text-transform: uppercase;
  color: var(--blueprint); margin-top: 8px;
}

.hero__plan {
  background: var(--paper); border: 1px solid var(--line-strong); border-radius: var(--r-lg);
  padding: 26px; box-shadow: var(--shadow);
}
.hero__plan img { border-radius: 3px; margin: 0 auto; max-height: 470px; width: auto; cursor: zoom-in; }
.hero__plan .cap {
  position: absolute; top: 20px; left: 20px; z-index: 1;
  font-family: var(--ff-mono); font-size: 10.5px; letter-spacing: .14em; text-transform: uppercase;
  color: var(--blueprint); background: var(--paper); padding: 5px 11px; border-radius: 4px;
  border: 1px solid var(--line);
}

@media (max-width: 860px) {
  .hero__grid { grid-template-columns: 1fr; }
  .hero__plan { order: -1; }
  .hero__plan img { max-height: 380px; }
}

/* ---------- палитра материалов ---------- */
.swatches { display: flex; gap: 16px; flex-wrap: wrap; margin-top: 30px; }
.swatch {
  display: flex; align-items: center; gap: 9px;
  font-family: var(--ff-mono); font-size: 12px; letter-spacing: .02em; color: var(--ink-soft);
}
.swatch i {
  width: 20px; height: 20px; border-radius: 4px; display: block;
  box-shadow: inset 0 0 0 1px rgba(0,0,0,.12);
}

/* ---------- секции ---------- */
.section { padding: clamp(52px, 8vw, 100px) 0; border-top: 1px solid var(--line); }
.section__head { display: flex; align-items: flex-start; justify-content: space-between; gap: 24px; flex-wrap: wrap; }
.section__head h2 { font-size: clamp(34px, 5vw, 58px); letter-spacing: -.018em; line-height: 1; margin-top: 16px; }

/* номер листа (как на рабочем чертеже) */
.section__index {
  font-family: var(--ff-display); font-size: clamp(44px, 6.5vw, 78px); line-height: .9;
  color: var(--line-strong); font-weight: 500; text-align: right; position: relative;
}
.section__index::before {
  content: "ЛИСТ"; display: block;
  font-family: var(--ff-mono); font-size: 10.5px; letter-spacing: .22em; font-weight: 500;
  color: var(--blueprint); margin-bottom: 8px;
}
.section__lead { max-width: 48ch; color: var(--ink-soft); margin: 20px 0 0; }

/* планировка */
.plan-layout { display: grid; grid-template-columns: 1.4fr 1fr; gap: clamp(24px,4vw,52px); margin-top: 46px; align-items: start; }
.plan-figure {
  background: var(--paper); border: 1px solid var(--line-strong); border-radius: var(--r-lg);
  padding: 30px; box-shadow: var(--shadow); display: grid; place-items: center;
}
.plan-figure img { max-height: 540px; width: auto; cursor: zoom-in; border-radius: 3px; }

.rooms { list-style: none; margin: 0; padding: 0; }
.rooms li {
  display: grid; grid-template-columns: auto 1fr auto auto; align-items: center; gap: 14px;
  padding: 15px 6px; border-bottom: 1px solid var(--line); transition: background .2s;
}
.rooms li:first-child { border-top: 1px solid var(--line); }
.rooms li:hover { background: color-mix(in srgb, var(--blueprint) 6%, transparent); }
.room-no {
  width: 30px; height: 30px; border-radius: 5px; display: grid; place-items: center;
  font-family: var(--ff-mono); font-size: 13px; font-weight: 600; color: var(--blueprint);
  border: 1px solid var(--blueprint-line); background: color-mix(in srgb, var(--blueprint) 8%, transparent);
}
.room-name { font-weight: 500; }
.room-name small { display: block; font-weight: 400; color: var(--ink-soft); font-size: 13px; }
.room-area {
  font-family: var(--ff-mono); font-size: 14px; color: var(--ink); white-space: nowrap;
  padding-left: 16px; position: relative;
}
/* размерная засечка перед площадью */
.room-area::before {
  content: ""; position: absolute; left: 0; top: 50%; width: 8px; height: 1px;
  background: var(--blueprint-line); transform: translateY(-50%);
}
a.rooms-link { text-decoration: none; }
a.rooms-link .room-name { transition: color .2s; }
a.rooms-link:hover .room-name { color: var(--blueprint); }
.tag {
  font-family: var(--ff-mono); font-size: 10px; letter-spacing: .06em; text-transform: uppercase;
  padding: 4px 9px; border-radius: 4px; white-space: nowrap;
}
.tag--done { color: var(--sage-deep); background: color-mix(in srgb, var(--sage) 18%, transparent); }
.tag--wip  { color: var(--ink-soft); background: color-mix(in srgb, var(--ink-soft) 12%, transparent); }

@media (max-width: 860px) { .plan-layout { grid-template-columns: 1fr; } }

/* галерея рендеров */
.renders { display: grid; gap: 18px; margin-top: 40px; }
.renders--hero { grid-template-columns: 1fr; }
.renders--trio { grid-template-columns: repeat(3, 1fr); margin-top: 18px; }
.render {
  position: relative; border-radius: var(--r); overflow: hidden; border: 1px solid var(--line-strong);
  box-shadow: var(--shadow); cursor: zoom-in; background: var(--paper);
}
.render img { width: 100%; height: 100%; object-fit: cover; transition: transform .6s cubic-bezier(.2,.7,.2,1); }
.render:hover img { transform: scale(1.035); }
.render .rcap {
  position: absolute; left: 12px; bottom: 12px;
  font-family: var(--ff-mono); font-size: 11px; letter-spacing: .04em; color: #fff;
  background: rgba(20,24,26,.6); backdrop-filter: blur(4px);
  padding: 5px 11px; border-radius: 4px;
}
@media (max-width: 720px) { .renders--trio { grid-template-columns: 1fr; } }

/* подзаголовок блока — как строка спецификации */
.subhead { display: flex; align-items: baseline; gap: 14px; margin: 58px 0 24px; }
.subhead h3 { font-size: 27px; letter-spacing: -.01em; }
.subhead .count { font-family: var(--ff-mono); font-size: 11.5px; color: var(--blueprint); letter-spacing: .04em; }
.subhead::after {
  content: ""; flex: 1; height: 0; border-top: 1px solid var(--line); align-self: center;
  /* засечка на правом конце */
  box-shadow: none;
}

/* карточки вариантов (мебель) */
.options { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; }
.opt {
  display: flex; flex-direction: column; background: var(--paper-2); border: 1px solid var(--line-strong);
  border-radius: var(--r); overflow: hidden; box-shadow: var(--shadow);
  transition: transform .35s cubic-bezier(.2,.7,.2,1), box-shadow .35s, border-color .35s;
}
.opt:hover { transform: translateY(-5px); box-shadow: var(--shadow-lift); border-color: var(--blueprint); }
.opt__media {
  aspect-ratio: 4 / 3; background: var(--paper); cursor: zoom-in; overflow: hidden;
  border-bottom: 1px solid var(--line);
  background-image:
    linear-gradient(var(--grid-line) 1px, transparent 1px),
    linear-gradient(90deg, var(--grid-line) 1px, transparent 1px);
  background-size: 20px 20px;
}
.opt__media img { width: 100%; height: 100%; object-fit: contain; padding: 18px; }
.opt__body { padding: 18px 20px 20px; display: flex; flex-direction: column; gap: 5px; flex: 1; }
.opt__no {
  font-family: var(--ff-mono); font-size: 11px; letter-spacing: .1em; text-transform: uppercase;
  color: var(--blueprint); font-weight: 500;
}
.opt__name { font-family: var(--ff-display); font-size: 20px; line-height: 1.15; }
.opt__desc { font-size: 13.5px; line-height: 1.5; color: var(--ink-soft); margin-top: 2px; }
.opt__price { font-family: var(--ff-mono); font-weight: 600; font-size: 22px; margin-top: 10px; letter-spacing: -.01em; }
.opt__price span { font-size: 14px; color: var(--ink-soft); font-weight: 400; }
.opt__link {
  margin-top: auto; padding-top: 16px; display: inline-flex; align-items: center; gap: 7px;
  text-decoration: none; font-family: var(--ff-mono); font-size: 12.5px; font-weight: 500; color: var(--blueprint);
}
.opt__link svg { width: 14px; height: 14px; transition: transform .2s; }
.opt__link:hover svg { transform: translate(2px,-2px); }

/* стаггер появления карточек в ряду */
.options .opt:nth-child(2) { transition-delay: .05s; }
.options .opt:nth-child(3) { transition-delay: .10s; }
.options .opt:nth-child(4) { transition-delay: .15s; }
.options .opt:nth-child(5) { transition-delay: .10s; }
.options .opt:nth-child(6) { transition-delay: .15s; }

/* группа карточек по типу (техника) */
.opt-group { margin-top: 36px; }
.opt-group:first-child { margin-top: 0; }
.opt-group__title {
  display: flex; align-items: baseline; gap: 12px; margin: 0 0 18px;
  font-family: var(--ff-display); font-size: 21px; letter-spacing: -.01em;
}
.opt-group__title span { font-family: var(--ff-mono); font-size: 11px; letter-spacing: .04em; color: var(--blueprint); font-weight: 400; }
.opt-group__title::after { content: ""; flex: 1; height: 1px; background: var(--line); align-self: center; }
@media (max-width: 860px) { .options { grid-template-columns: 1fr 1fr; } }
@media (max-width: 560px) { .options { grid-template-columns: 1fr; } }

/* варианты отделки (нумерованный список к изображению) */
.finish { display: grid; grid-template-columns: 1.35fr 1fr; gap: clamp(24px,4vw,48px); margin-top: 40px; align-items: center; }
.finish__img { border-radius: var(--r); overflow: hidden; border: 1px solid var(--line-strong); box-shadow: var(--shadow); cursor: zoom-in; }
.variants { list-style: none; margin: 0; padding: 0; counter-reset: v; }
.variants li {
  display: grid; grid-template-columns: auto 1fr; gap: 16px; align-items: start;
  padding: 16px 0; border-bottom: 1px solid var(--line);
}
.variants li:first-child { border-top: 1px solid var(--line); }
.variants li::before {
  counter-increment: v; content: counter(v, decimal-leading-zero);
  font-family: var(--ff-mono); font-size: 12px; font-weight: 600; color: var(--blueprint);
  width: 32px; height: 32px; border-radius: 5px; display: grid; place-items: center;
  border: 1px solid var(--blueprint-line); background: color-mix(in srgb, var(--blueprint) 8%, transparent);
}
.variants b { font-weight: 500; }
.variants small { color: var(--ink-soft); display: block; font-size: 13.5px; }
@media (max-width: 860px) { .finish { grid-template-columns: 1fr; } }

/* парный ряд / сетка 2×2 рендеров */
.renders--duo { grid-template-columns: repeat(2, 1fr); margin-top: 18px; }
.renders--quad { grid-template-columns: repeat(2, 1fr); margin-top: 18px; }
@media (max-width: 720px) { .renders--duo, .renders--quad { grid-template-columns: 1fr; } }

/* пустой раздел (в работе) */
.section-empty {
  margin-top: 36px; padding: 30px 32px; border: 1px dashed var(--blueprint-line); border-radius: var(--r);
  color: var(--ink-soft); font-size: 16px; background: color-mix(in srgb, var(--blueprint) 4%, transparent);
  font-family: var(--ff-mono); font-size: 14px; letter-spacing: .01em;
}

/* проза и заметки из markdown */
.prose { max-width: 64ch; color: var(--ink-soft); margin: 22px 0 0; }
.note {
  max-width: 64ch; margin: 26px 0 0; padding: 15px 22px; font-size: 15px; color: var(--ink-soft);
  border-left: 2px solid var(--blueprint); background: color-mix(in srgb, var(--blueprint) 6%, transparent);
  border-radius: 0 6px 6px 0;
}

/* спецификация (таблицы из markdown, техника) */
.table-wrap { margin-top: 30px; overflow-x: auto; border: 1px solid var(--line-strong); border-radius: var(--r); }
.table-wrap table { width: 100%; border-collapse: collapse; font-size: 15px; background: var(--paper-2); }
.table-wrap th, .table-wrap td { text-align: left; padding: 13px 18px; border-bottom: 1px solid var(--line); vertical-align: middle; }
.table-wrap th {
  font-family: var(--ff-mono); font-weight: 500; color: var(--blueprint); font-size: 11px;
  letter-spacing: .08em; text-transform: uppercase; background: color-mix(in srgb, var(--blueprint) 5%, transparent);
}
.table-wrap tbody tr:nth-child(even) { background: color-mix(in srgb, var(--paper) 60%, transparent); }
.table-wrap tr:last-child td { border-bottom: none; }
.table-wrap td:first-child { font-weight: 500; color: var(--ink); }
.table-wrap td img { width: 84px; border-radius: 5px; }
.table-wrap .tlink {
  display: inline-flex; align-items: center; gap: 5px; white-space: nowrap;
  font-family: var(--ff-mono); font-size: 12.5px; color: var(--blueprint); font-weight: 500; text-decoration: none;
}
.table-wrap .tlink svg { width: 13px; height: 13px; }
.table-wrap .tlink:hover { text-decoration: underline; }

/* ---------- футер — штамп чертежа ---------- */
.footer {
  border-top: 1px solid var(--line-strong); padding: 40px 0 60px; color: var(--ink-soft);
  font-family: var(--ff-mono); font-size: 12px; letter-spacing: .02em;
}
.footer__inner { display: flex; justify-content: space-between; gap: 20px; flex-wrap: wrap; align-items: center; }
.footer b { font-family: var(--ff-display); color: var(--ink); font-weight: 500; letter-spacing: 0; }

/* ---------- лайтбокс ---------- */
.lightbox {
  position: fixed; inset: 0; z-index: 100; display: none;
  background: rgba(16,19,20,.88); backdrop-filter: blur(6px);
  align-items: center; justify-content: center; padding: 4vw; cursor: zoom-out;
}
.lightbox.open { display: flex; }
.lightbox img { max-width: 94vw; max-height: 90vh; width: auto; border-radius: 4px; box-shadow: 0 30px 80px rgba(0,0,0,.6); cursor: default; }
.lightbox__close {
  position: absolute; top: 20px; right: 24px; width: 44px; height: 44px; border-radius: 6px;
  border: 1px solid rgba(255,255,255,.3); background: rgba(0,0,0,.3); color: #fff; cursor: pointer;
  display: grid; place-items: center; font-size: 22px; line-height: 1;
}
.lightbox__close:hover { background: rgba(0,0,0,.55); }

/* ---------- reveal ---------- */
.reveal { opacity: 0; transform: translateY(22px); transition: opacity .7s ease, transform .7s cubic-bezier(.2,.7,.2,1); }
.reveal.in { opacity: 1; transform: none; }
@media (prefers-reduced-motion: reduce) {
  .reveal { opacity: 1; transform: none; transition: none; }
  .render img, .opt { transition: none; }
  .options .opt { transition-delay: 0s; }
}

:focus-visible { outline: 2px solid var(--blueprint); outline-offset: 3px; border-radius: 3px; }