/* style.css */
:root {
  --bg: #0f1115;
  --bg-muted: #161920;
  --card: #1a1e27;
  --border: #262b36;
  --text: #eef1f6;
  --text-muted: #9aa3b2;
  --accent: #4f8cff;
  --accent-hover: #6ea0ff;
  --accent-soft: rgba(79, 140, 255, 0.12);
  --shadow: 0 10px 30px rgba(0, 0, 0, 0.35);
  --radius: 16px;
}

[data-theme="light"] {
  --bg: #f6f8fc;
  --bg-muted: #eef2f8;
  --card: #ffffff;
  --border: #e2e8f0;
  --text: #131722;
  --text-muted: #5b6474;
  --accent: #2f6bff;
  --accent-hover: #1f57e0;
  --accent-soft: rgba(47, 107, 255, 0.1);
  --shadow: 0 10px 30px rgba(20, 30, 60, 0.08);
}

* { box-sizing: border-box; margin: 0; padding: 0; }

html { scroll-behavior: smooth; }

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  transition: background .3s ease, color .3s ease;
}

.container { max-width: 1120px; margin: 0 auto; padding: 0 20px; }

a { color: inherit; text-decoration: none; }

/* HEADER */
.site-header {
  position: sticky; top: 0; z-index: 50;
  background: color-mix(in srgb, var(--bg) 85%, transparent);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
}
.header-inner { display: flex; align-items: center; justify-content: space-between; height: 64px; gap: 20px; }
.logo { font-weight: 700; font-size: 1.15rem; letter-spacing: .3px; }
.nav { display: flex; gap: 24px; margin-left: auto; }
.nav a { color: var(--text-muted); font-size: .95rem; transition: color .2s; }
.nav a:hover { color: var(--text); }

.theme-toggle {
  width: 40px; height: 40px; border-radius: 50%;
  border: 1px solid var(--border); background: var(--card);
  cursor: pointer; font-size: 1.1rem; display: grid; place-items: center;
  transition: transform .2s, border-color .2s;
}
.theme-toggle:hover { transform: scale(1.08); border-color: var(--accent); }

/* HERO */
.hero { text-align: center; padding: 80px 0 48px; }
.hero--landing { padding: 96px 0 72px; }
.hero h1 { font-size: clamp(1.9rem, 4vw, 3.2rem); line-height: 1.15; letter-spacing: -.5px; }
.subtitle { color: var(--text-muted); max-width: 620px; margin: 18px auto 0; font-size: 1.05rem; }

.pill {
  display: inline-block; padding: 6px 14px; border-radius: 999px;
  background: var(--accent-soft); color: var(--accent);
  font-size: .85rem; font-weight: 600; margin-bottom: 20px;
}

.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  padding: 14px 28px; border-radius: 12px; border: none;
  font-size: 1rem; font-weight: 600; cursor: pointer;
  transition: background .2s, transform .15s, box-shadow .2s;
  font-family: inherit;
}
.btn--primary { background: var(--accent); color: #fff; box-shadow: 0 6px 20px rgba(79,140,255,.3); }
.btn--primary:hover { background: var(--accent-hover); transform: translateY(-1px); }
.btn--block { width: 100%; margin-top: 8px; }
.hero .btn { margin-top: 32px; }

/* CARDS */
.cards { display: grid; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); gap: 20px; padding-bottom: 64px; }
.card {
  position: relative; background: var(--card); border: 1px solid var(--border);
  border-radius: var(--radius); padding: 32px 28px; overflow: hidden;
  transition: transform .25s, border-color .25s, box-shadow .25s;
}
.card:hover { transform: translateY(-4px); border-color: var(--accent); box-shadow: var(--shadow); }
.card--accent { border-color: var(--accent); }
.card-badge {
  position: absolute; top: 16px; right: 16px;
  background: var(--accent); color: #fff; font-size: .72rem; font-weight: 700;
  padding: 4px 10px; border-radius: 999px; text-transform: uppercase; letter-spacing: .5px;
}
.card-icon { font-size: 2.2rem; margin-bottom: 16px; }
.card h2 { font-size: 1.35rem; margin-bottom: 10px; }
.card p { color: var(--text-muted); font-size: .95rem; margin-bottom: 20px; }
.card-cta { color: var(--accent); font-weight: 600; font-size: .95rem; }

/* SECTIONS */
.section { padding: 72px 0; }
.section--muted { background: var(--bg-muted); }
.section-title { font-size: clamp(1.5rem, 3vw, 2.1rem); text-align: center; letter-spacing: -.4px; }
.section-sub { text-align: center; color: var(--text-muted); margin-top: 10px; margin-bottom: 40px; }

/* CALCULATOR */
.calc {
  display: grid; grid-template-columns: 1.4fr 1fr; gap: 24px;
  background: var(--card); border: 1px solid var(--border);
  border-radius: var(--radius); padding: 28px; box-shadow: var(--shadow);
}
.calc-form { display: flex; flex-direction: column; gap: 20px; }
.field { display: flex; flex-direction: column; gap: 8px; }
.field-row { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.field label { font-size: .9rem; font-weight: 600; color: var(--text-muted); }

input[type="text"], input[type="tel"], input[type="number"], select, textarea {
  width: 100%; padding: 12px 14px; border-radius: 10px;
  border: 1px solid var(--border); background: var(--bg);
  color: var(--text); font-size: 1rem; font-family: inherit;
  transition: border-color .2s, box-shadow .2s;
}
input:focus, select:focus, textarea:focus {
  outline: none; border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-soft);
}
textarea { resize: vertical; }

.stepper { display: flex; align-items: center; gap: 8px; }
.stepper input { text-align: center; -moz-appearance: textfield; }
.stepper input::-webkit-outer-spin-button,
.stepper input::-webkit-inner-spin-button { -webkit-appearance: none; }
.stepper-btn {
  width: 44px; height: 44px; flex-shrink: 0; border-radius: 10px;
  border: 1px solid var(--border); background: var(--bg);
  color: var(--text); font-size: 1.3rem; cursor: pointer;
  transition: background .2s, border-color .2s;
}
.stepper-btn:hover { border-color: var(--accent); background: var(--accent-soft); }

.checkbox { display: flex; align-items: center; gap: 10px; font-size: .95rem; cursor: pointer; font-weight: 400; color: var(--text); }
.checkbox input { width: 18px; height: 18px; accent-color: var(--accent); cursor: pointer; }

/* RESULT */
.calc-result {
  background: var(--bg); border: 1px solid var(--border);
  border-radius: 12px; padding: 24px; display: flex; flex-direction: column;
  align-self: start; position: sticky; top: 88px;
}
.calc-result h3 { font-size: 1.1rem; margin-bottom: 18px; }
.result-row {
  display: flex; justify-content: space-between; align-items: baseline;
  padding: 12px 0; border-bottom: 1px dashed var(--border); font-size: .95rem;
}
.result-row span { color: var(--text-muted); }
.result-row--total { border-bottom: none; margin-top: 8px; padding-top: 16px; border-top: 2px solid var(--border); font-size: 1.1rem; }
.result-row--total strong { color: var(--accent); font-size: 1.5rem; }
.calc-note { font-size: .8rem; color: var(--text-muted); text-align: center; margin-top: 10px; }

/* REVIEWS */
.reviews { display: grid; grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)); gap: 20px; }
.review { background: var(--card); border: 1px solid var(--border); border-radius: var(--radius); padding: 24px; }
.review p { font-style: italic; color: var(--text); }
.review-author { margin-top: 14px; color: var(--accent); font-weight: 600; font-size: .9rem; }

/* CONTACTS */
.contacts { display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); gap: 20px; }
.contact-card {
  background: var(--card); border: 1px solid var(--border); border-radius: var(--radius);
  padding: 24px; text-align: center; transition: transform .2s, border-color .2s;
}
.contact-card:hover { transform: translateY(-3px); border-color: var(--accent); }
.contact-icon { font-size: 1.8rem; display: block; margin-bottom: 10px; }
.contact-label { display: block; color: var(--text-muted); font-size: .85rem; margin-bottom: 6px; }

/* FOOTER */
.site-footer { border-top: 1px solid var(--border); padding: 28px 0; text-align: center; color: var(--text-muted); font-size: .9rem; }

/* MODAL */
.modal { position: fixed; inset: 0; z-index: 100; display: none; align-items: center; justify-content: center; padding: 20px; }
.modal.is-open { display: flex; }
.modal-overlay { position: absolute; inset: 0; background: rgba(0,0,0,.6); backdrop-filter: blur(4px); }
.modal-box {
  position: relative; background: var(--card); border: 1px solid var(--border);
  border-radius: var(--radius); padding: 32px; width: 100%; max-width: 440px;
  box-shadow: var(--shadow); animation: modalIn .25s ease; max-height: 90vh; overflow-y: auto;
}
@keyframes modalIn { from { opacity: 0; transform: translateY(16px) scale(.98); } }
.modal-close {
  position: absolute; top: 14px; right: 16px; background: none; border: none;
  font-size: 1.8rem; color: var(--text-muted); cursor: pointer; line-height: 1;
}
.modal-close:hover { color: var(--text); }
.modal-box h3 { font-size: 1.35rem; }
.modal-sub { color: var(--text-muted); font-size: .9rem; margin: 6px 0 22px; }
#leadForm { display: flex; flex-direction: column; gap: 16px; }

.lead-summary {
  background: var(--accent-soft); border-radius: 10px; padding: 14px;
  font-size: .88rem; color: var(--text); display: none;
}
.lead-summary.is-visible { display: block; }
.lead-summary strong { color: var(--accent); }

.honeypot { position: absolute; left: -9999px; opacity: 0; height: 0; }
.form-note { font-size: .75rem; color: var(--text-muted); text-align: center; }
.form-status { font-size: .9rem; text-align: center; min-height: 20px; }
.form-status.ok { color: #34c759; }
.form-status.err { color: #ff453a; }

/* RESPONSIVE */
@media (max-width: 860px) {
  .calc { grid-template-columns: 1fr; }
  .calc-result { position: static; }
}
@media (max-width: 560px) {
  .nav { display: none; }
  .hero { padding: 56px 0 32px; }
  .hero--landing { padding: 64px 0 48px; }
  .section { padding: 52px 0; }
  .calc { padding: 20px; }
  .field-row { grid-template-columns: 1fr; }
  .card { padding: 26px 22px; }
  .modal-box { padding: 24px; }
}
/* ABOUT */
.about {
  display: grid;
  grid-template-columns: 1.2fr 1fr;
  gap: 40px;
  align-items: center;
}
.about-text p { color: var(--text-muted); margin-bottom: 16px; }
.about-text p:last-child { margin-bottom: 0; }
.about-stats {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}
.stat {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 22px 18px;
  text-align: center;
}
.stat strong {
  display: block;
  font-size: 1.6rem;
  color: var(--accent);
  letter-spacing: -.5px;
}
.stat span { font-size: .85rem; color: var(--text-muted); }

/* FOOTER */
.site-footer {
  border-top: 1px solid var(--border);
  padding: 56px 0 28px;
  font-size: .95rem;
}
.footer-grid {
  display: grid;
  grid-template-columns: 1.6fr 1fr 1.2fr 1fr;
  gap: 32px;
  margin-bottom: 40px;
}
.footer-col .logo { display: inline-block; margin-bottom: 14px; }
.footer-desc { color: var(--text-muted); font-size: .9rem; max-width: 280px; }
.footer-col h4 {
  font-size: .95rem;
  margin-bottom: 16px;
  text-transform: uppercase;
  letter-spacing: .5px;
  color: var(--text);
}
.footer-col ul { list-style: none; display: flex; flex-direction: column; gap: 10px; }
.footer-col ul a, .footer-col ul li { color: var(--text-muted); font-size: .9rem; transition: color .2s; }
.footer-col ul a:hover { color: var(--accent); }

.socials { display: flex; gap: 12px; }
.socials a {
  width: 42px; height: 42px;
  display: grid; place-items: center;
  border-radius: 12px;
  border: 1px solid var(--border);
  background: var(--card);
  font-size: 1.1rem;
  transition: transform .2s, border-color .2s;
}
.socials a:hover { transform: translateY(-3px); border-color: var(--accent); }

.footer-bottom {
  border-top: 1px solid var(--border);
  padding-top: 24px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
  flex-wrap: wrap;
  color: var(--text-muted);
  font-size: .85rem;
}
.footer-bottom a { color: var(--text-muted); transition: color .2s; }
.footer-bottom a:hover { color: var(--accent); }

/* FOOTER RESPONSIVE */
@media (max-width: 860px) {
  .about { grid-template-columns: 1fr; gap: 28px; }
  .footer-grid { grid-template-columns: 1fr 1fr; gap: 28px; }
}
@media (max-width: 560px) {
  .footer-grid { grid-template-columns: 1fr; }
  .about-stats { grid-template-columns: 1fr 1fr; }
  .footer-bottom { flex-direction: column; align-items: flex-start; }
}
/* ПРЕВЬЮ ОКНА (SVG-чертёж) */
.win-preview {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 16px;
  margin-bottom: 20px;
  display: flex;
  justify-content: center;
}
.win-preview svg {
  width: 100%;
  max-width: 320px;
  height: auto;
  display: block;
}

/* Линии чертежа */
.win-preview .frame       { fill: none; stroke: var(--text); stroke-width: 2; }
.win-preview .impost      { stroke: var(--text); stroke-width: 1.5; }
.win-preview .sash-line   { stroke: var(--text); stroke-width: 1; opacity: .35; }
.win-preview .glass       { fill: var(--accent-soft); stroke: var(--text); stroke-width: 1.5; }
.win-preview .handle      { fill: var(--text); }
.win-preview .dim-line    { stroke: var(--accent); stroke-width: 1; }
.win-preview .dim-text    { fill: var(--accent); font-size: 11px; font-weight: 600; font-family: inherit; }
.win-preview .label-text  { fill: var(--text-muted); font-size: 10px; font-family: inherit; }
/* КАТАЛОГ ОКОН */
.catalog {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 20px;
}
.win-card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  transition: transform .25s, border-color .25s, box-shadow .25s;
  display: flex;
  flex-direction: column;
}
.win-card:hover {
  transform: translateY(-4px);
  border-color: var(--accent);
  box-shadow: var(--shadow);
}
.win-card-photo {
  aspect-ratio: 4 / 3;
  background: var(--bg);
  display: grid;
  place-items: center;
  font-size: 3rem;
  color: var(--text-muted);
  border-bottom: 1px solid var(--border);
}
.win-card-body { padding: 20px; display: flex; flex-direction: column; gap: 10px; flex: 1; }
.win-card-title { font-size: 1.05rem; font-weight: 600; }
.win-card-size { color: var(--accent); font-weight: 600; font-size: .95rem; }
.win-card-desc { color: var(--text-muted); font-size: .88rem; flex: 1; }
.win-card-price {
  display: flex; justify-content: space-between; align-items: baseline;
  padding-top: 12px; border-top: 1px dashed var(--border);
}
.win-card-price strong { font-size: 1.3rem; color: var(--text); }
.win-card-price s { color: var(--text-muted); font-size: .9rem; }
.win-card .btn { margin-top: 4px; }

.badge-condition {
  display: inline-block; padding: 3px 10px; border-radius: 999px;
  background: var(--accent-soft); color: var(--accent);
  font-size: .75rem; font-weight: 600; align-self: flex-start;
}

/* СТАТУС ПОДБОРА */
.fit-status {
  padding: 12px 14px;
  border-radius: 10px;
  font-size: .9rem;
  font-weight: 600;
  margin-bottom: 16px;
  display: none;
}
.fit-status.is-visible { display: block; }
.fit-status.ok { background: rgba(52, 199, 89, .15); color: #34c759; }
.fit-status.warn { background: rgba(255, 159, 10, .15); color: #ff9f0a; }
.fit-status.err { background: rgba(255, 69, 58, .15); color: #ff453a; }
.win-card-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin: 4px 0 8px;
}
.tag {
  font-size: .75rem;
  padding: 3px 10px;
  border-radius: 999px;
  background: var(--bg-muted);
  color: var(--text-muted);
  border: 1px solid var(--border);
}
.tag--accent {
  background: var(--accent-soft);
  color: var(--accent);
  border-color: transparent;
  font-weight: 600;
}

.catalog-filters {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-bottom: 28px;
  justify-content: center;
}
.catalog-filters select {
  min-width: 200px;
  width: auto;
}
/* ТЕГИ В КАРТОЧКАХ */
.win-card-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin: 4px 0 8px;
}
.tag {
  font-size: .75rem;
  padding: 3px 10px;
  border-radius: 999px;
  background: var(--bg-muted);
  color: var(--text-muted);
  border: 1px solid var(--border);
}
.tag--accent {
  background: var(--accent-soft);
  color: var(--accent);
  border-color: transparent;
  font-weight: 600;
}

/* ФИЛЬТРЫ */
.catalog-filters {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-bottom: 28px;
  justify-content: center;
}
.catalog-filters select {
  min-width: 200px;
  width: auto;
}
.catalog-empty {
  text-align: center;
  color: var(--text-muted);
  padding: 40px 0;
  font-size: 1rem;
}
.catalog-filters {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-bottom: 28px;
  justify-content: center;
}
.catalog-filters select {
  min-width: 180px;
  width: auto;
  flex: 0 1 auto;
}
@media (max-width: 560px) {
  .catalog-filters select {
    min-width: 100%;
  }
}
/* КАРТИНКА-ССЫЛКА В КАРТОЧКЕ */
.win-card-photo {
  display: block;
  aspect-ratio: 4 / 3;
  background: var(--bg);
  border-bottom: 1px solid var(--border);
  overflow: hidden;
  position: relative;
}
.win-card-photo img {
  width: 100%;
  height: 100%;
  object-fit: contain;
  padding: 20px;
  transition: transform .35s ease;
}
.win-card-photo:hover img {
  transform: scale(1.12);
}
.win-card-photo::after {
  content: '↗';
  position: absolute;
  top: 10px; right: 12px;
  font-size: 1rem;
  color: var(--text-muted);
  opacity: 0;
  transition: opacity .25s;
}
.win-card-photo:hover::after { opacity: 1; }

/* КАРТОЧКА ТОВАРА */
.product-page { padding: 40px 0 72px; }
.breadcrumbs {
  display: flex; flex-wrap: wrap; gap: 8px;
  font-size: .9rem; color: var(--text-muted); margin-bottom: 28px;
}
.breadcrumbs a { color: var(--text-muted); }
.breadcrumbs a:hover { color: var(--accent); }

.product-layout {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 40px;
  align-items: start;
}
.product-photo {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 40px;
  aspect-ratio: 1 / 1;
  display: grid; place-items: center;
}
.product-photo img {
  width: 100%; height: auto; max-height: 100%;
  object-fit: contain;
}
.product-info h1 { font-size: clamp(1.4rem, 3vw, 2rem); margin: 12px 0 8px; }
.product-size { color: var(--accent); font-weight: 600; font-size: 1.05rem; margin-bottom: 16px; }
.product-tags { margin-bottom: 20px; }
.product-desc { color: var(--text-muted); margin-bottom: 24px; }
.product-price {
  display: flex; align-items: baseline; gap: 16px;
  padding: 20px 0;
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
  margin-bottom: 24px;
}
.product-price strong { font-size: 2rem; color: var(--text); }
.product-price s { color: var(--text-muted); font-size: 1.1rem; }

@media (max-width: 760px) {
  .product-layout { grid-template-columns: 1fr; gap: 24px; }
  .product-photo { padding: 24px; }
}
/* Сэндвич-панель в дверной створке */
.win-preview .sandwich {
  fill: var(--bg-muted);
  stroke: var(--text);
  stroke-width: 1.5;
}
/* Форточка (проветривание) */
.win-preview .vent {
  fill: rgba(79, 140, 255, 0.06);
  stroke: var(--accent);
  stroke-width: 1.2;
  stroke-dasharray: 4 3;
}
/* Замок на дверной створке */
.win-preview .lock {
  fill: var(--text);
  stroke: var(--bg);
  stroke-width: 1;
}
.win-preview .sandwich {
  fill: var(--bg-muted);
  stroke: var(--text);
  stroke-width: 1.5;
}
.win-preview .vent {
  fill: rgba(79, 140, 255, 0.06);
  stroke: var(--accent);
  stroke-width: 1.2;
  stroke-dasharray: 4 3;
}
.win-preview .lock {
  fill: var(--text);
  stroke: var(--bg);
  stroke-width: 1;
}
.win-preview .sandwich {
  fill: var(--bg-muted);
  stroke: var(--text);
  stroke-width: 1.5;
}
.win-preview .vent {
  fill: rgba(79, 140, 255, 0.06);
  stroke: var(--accent);
  stroke-width: 1.2;
  stroke-dasharray: 4 3;
}
.win-preview .lock {
  fill: var(--text);
  stroke: var(--bg);
  stroke-width: 1;
}
.win-preview .impost--wide { stroke-width: 2.5; }
.win-preview .impost--thin { stroke-width: 1; opacity: .6; }
.win-preview .frame       { fill: none; stroke: var(--text); stroke-width: 2; }
.win-preview .impost      { stroke: var(--text); stroke-width: 1.5; }
.win-preview .impost--thin { stroke-width: 1; opacity: .6; }
.win-preview .sash-line   { stroke: var(--text); stroke-width: 1; opacity: .35; }
.win-preview .glass       { fill: var(--accent-soft); stroke: var(--text); stroke-width: 1.5; }
.win-preview .sandwich    { fill: var(--bg-muted); stroke: var(--text); stroke-width: 1.5; }
.win-preview .vent        { fill: rgba(79, 140, 255, 0.06); stroke: var(--accent); stroke-width: 1.2; stroke-dasharray: 4 3; }
.win-preview .handle      { fill: var(--text); }
.win-preview .lock        { fill: var(--text); stroke: var(--bg); stroke-width: 1; }
.win-preview .dim-line    { stroke: var(--accent); stroke-width: 1; }
.win-preview .dim-text    { fill: var(--accent); font-size: 11px; font-weight: 600; font-family: inherit; }
.win-preview .label-text  { fill: var(--text-muted); font-size: 10px; font-family: inherit; }