/* ============================================================
   GESTALT — Design System
   ============================================================ */

@import url('https://fonts.googleapis.com/css2?family=Plus+Jakarta+Sans:ital,wght@0,300;0,400;0,500;0,600;0,700;0,800;1,400&display=swap');

/* ── Reset ─────────────────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body { font-family: var(--font); background: var(--bg); color: var(--text); line-height: 1.6; overflow-x: hidden; }
img { max-width: 100%; display: block; }
a { text-decoration: none; color: inherit; }
ul, ol { list-style: none; }
button { font-family: inherit; cursor: pointer; border: none; background: none; }
input, textarea, select { font-family: inherit; }

/* ── Tokens ─────────────────────────────────────────────────── */
:root {
  --bg:             #FAFAF9;
  --bg-warm:        #F4F2EE;
  --bg-dark:        #141414;
  --bg-dark-2:      #1E1E1E;
  --primary:        #141414;
  --accent:         #BE1E28;
  --accent-hover:   #A01820;
  --accent-light:   #FAEAEA;
  --text:           #1A1A1A;
  --text-muted:     #6B6B6B;
  --text-light:     #A0A0A0;
  --border:         #E8E5DF;
  --border-dark:    #2C2C2C;
  --white:          #FFFFFF;

  --font:           'Plus Jakarta Sans', -apple-system, BlinkMacSystemFont, sans-serif;

  --nav-h:          72px;
  --max-w:          1280px;
  --section-px:     clamp(20px, 5vw, 80px);
  --section-py:     clamp(60px, 8vw, 120px);

  --radius-xs:      4px;
  --radius-sm:      8px;
  --radius:         14px;
  --radius-lg:      24px;
  --radius-xl:      40px;

  --shadow-xs:      0 1px 3px rgba(0,0,0,.06);
  --shadow-sm:      0 2px 8px rgba(0,0,0,.07), 0 1px 3px rgba(0,0,0,.04);
  --shadow:         0 6px 24px rgba(0,0,0,.09), 0 2px 6px rgba(0,0,0,.05);
  --shadow-lg:      0 20px 60px rgba(0,0,0,.14), 0 6px 20px rgba(0,0,0,.07);
  --shadow-dark:    0 30px 80px rgba(0,0,0,.5);

  --ease:           cubic-bezier(.4,0,.2,1);
  --t:              .25s;
}

/* ── Utility ─────────────────────────────────────────────────── */
.container { max-width: var(--max-w); margin-inline: auto; padding-inline: var(--section-px); }
.section    { padding-block: var(--section-py); }
.section--dark { background: var(--bg-dark); color: var(--white); }
.section--warm { background: var(--bg-warm); }
.sr-only    { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0,0,0,0); white-space: nowrap; }

/* ── Typography ─────────────────────────────────────────────── */
.label {
  display: inline-flex; align-items: center; gap: 8px;
  font-size: 11px; font-weight: 600; letter-spacing: .12em; text-transform: uppercase;
  color: var(--accent); padding: 6px 14px;
  background: var(--accent-light); border-radius: 100px;
}
.label--dark { background: rgba(190,30,40,.15); color: var(--accent); }

h1, h2, h3, h4 { line-height: 1.15; font-weight: 700; }
.display { font-size: clamp(40px, 6vw, 80px); font-weight: 800; letter-spacing: -.03em; line-height: 1.05; }
.h1      { font-size: clamp(32px, 4.5vw, 60px); font-weight: 800; letter-spacing: -.025em; }
.h2      { font-size: clamp(26px, 3.5vw, 44px); font-weight: 700; letter-spacing: -.02em; }
.h3      { font-size: clamp(20px, 2.5vw, 30px); font-weight: 700; letter-spacing: -.015em; }
.h4      { font-size: clamp(17px, 1.8vw, 22px); font-weight: 600; letter-spacing: -.01em; }
.lead    { font-size: clamp(16px, 1.5vw, 20px); font-weight: 400; line-height: 1.7; color: var(--text-muted); }
.body    { font-size: 16px; line-height: 1.7; }
.small   { font-size: 14px; line-height: 1.6; }
.tiny    { font-size: 12px; letter-spacing: .04em; }

/* ── Buttons ─────────────────────────────────────────────────── */
.btn {
  display: inline-flex; align-items: center; gap: 8px;
  font-size: 14px; font-weight: 600; letter-spacing: .02em;
  padding: 14px 28px; border-radius: var(--radius-sm);
  transition: all var(--t) var(--ease); white-space: nowrap;
  cursor: pointer; position: relative; overflow: hidden;
}
.btn::after {
  content: ''; position: absolute; inset: 0;
  background: rgba(255,255,255,.08);
  opacity: 0; transition: opacity var(--t);
}
.btn:hover::after { opacity: 1; }

.btn--primary {
  background: var(--accent); color: var(--white);
  box-shadow: 0 4px 16px rgba(190,30,40,.35);
}
.btn--primary:hover { background: var(--accent-hover); box-shadow: 0 6px 24px rgba(190,30,40,.45); transform: translateY(-1px); }

.btn--dark { background: var(--primary); color: var(--white); }
.btn--dark:hover { background: var(--bg-dark-2); transform: translateY(-1px); box-shadow: var(--shadow); }

.btn--outline {
  background: transparent; color: var(--primary);
  border: 1.5px solid var(--border);
}
.btn--outline:hover { border-color: var(--primary); background: var(--primary); color: var(--white); }

.btn--outline-white {
  background: transparent; color: var(--white);
  border: 1.5px solid rgba(255,255,255,.35);
}
.btn--outline-white:hover { border-color: var(--white); background: var(--white); color: var(--primary); }

.btn--lg { font-size: 16px; padding: 17px 36px; border-radius: var(--radius); }
.btn--sm { font-size: 13px; padding: 10px 20px; }

.btn-icon {
  display: inline-flex; align-items: center; justify-content: center;
  width: 44px; height: 44px; border-radius: 50%;
  background: var(--bg-warm); color: var(--text-muted);
  transition: all var(--t) var(--ease);
}
.btn-icon:hover { background: var(--primary); color: var(--white); }

/* ── Navigation ─────────────────────────────────────────────── */
.nav {
  position: fixed; top: 0; left: 0; right: 0; z-index: 1000;
  height: var(--nav-h);
  display: flex; align-items: center;
  background: rgba(250,250,249,.92); backdrop-filter: blur(20px) saturate(180%);
  -webkit-backdrop-filter: blur(20px) saturate(180%);
  border-bottom: 1px solid transparent;
  transition: border-color var(--t), box-shadow var(--t);
}
.nav.scrolled {
  border-bottom-color: var(--border);
  box-shadow: 0 2px 20px rgba(0,0,0,.06);
}
.nav__inner {
  max-width: var(--max-w); margin-inline: auto; padding-inline: var(--section-px);
  width: 100%; display: flex; align-items: center; gap: 40px;
}
.nav__logo {
  font-size: 22px; font-weight: 800; letter-spacing: -.04em; color: var(--primary);
  flex-shrink: 0; display: flex; align-items: center; gap: 8px;
}
.nav__logo-mark {
  width: 32px; height: 32px; background: var(--accent);
  border-radius: 8px; display: flex; align-items: center; justify-content: center;
}
.nav__logo-mark svg { fill: none; stroke: white; stroke-width: 2.5; }
.nav__links {
  display: flex; align-items: center; gap: 2px;
  flex: 1;
}
.nav__link {
  font-size: 14px; font-weight: 500; color: var(--text-muted);
  padding: 8px 14px; border-radius: var(--radius-sm);
  transition: color var(--t), background var(--t);
  position: relative;
}
.nav__link:hover, .nav__link.active { color: var(--primary); background: var(--bg-warm); }
.nav__dropdown { position: relative; }
.nav__dropdown-menu {
  position: absolute; top: calc(100% + 8px); left: 0;
  min-width: 240px; background: var(--white);
  border: 1px solid var(--border); border-radius: var(--radius);
  box-shadow: var(--shadow-lg); padding: 8px;
  opacity: 0; pointer-events: none; transform: translateY(-8px);
  transition: opacity var(--t), transform var(--t);
}
.nav__dropdown:hover .nav__dropdown-menu,
.nav__dropdown:focus-within .nav__dropdown-menu {
  opacity: 1; pointer-events: all; transform: translateY(0);
}
.nav__dropdown-link {
  display: flex; align-items: center; gap: 10px;
  padding: 10px 14px; border-radius: var(--radius-sm);
  font-size: 14px; font-weight: 500; color: var(--text-muted);
  transition: background var(--t), color var(--t);
}
.nav__dropdown-link:hover { background: var(--bg-warm); color: var(--primary); }
.nav__actions { display: flex; align-items: center; gap: 10px; margin-left: auto; }
.nav__tel {
  font-size: 14px; font-weight: 600; color: var(--primary);
  display: flex; align-items: center; gap: 6px;
}
.nav__hamburger {
  display: none; flex-direction: column; gap: 5px;
  width: 40px; height: 40px; align-items: center; justify-content: center;
  border-radius: var(--radius-sm); cursor: pointer;
  transition: background var(--t);
}
.nav__hamburger:hover { background: var(--bg-warm); }
.nav__hamburger span {
  display: block; width: 22px; height: 2px;
  background: var(--primary); border-radius: 2px;
  transition: transform var(--t), opacity var(--t);
}
.nav__hamburger.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav__hamburger.open span:nth-child(2) { opacity: 0; }
.nav__hamburger.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* Mobile nav drawer */
.nav__mobile {
  position: fixed; top: var(--nav-h); left: 0; right: 0; bottom: 0;
  background: var(--white); z-index: 999;
  padding: 24px var(--section-px) 40px;
  overflow-y: auto;
  transform: translateX(100%); transition: transform .35s var(--ease);
}
.nav__mobile.open { transform: translateX(0); }
.nav__mobile-link {
  display: block; padding: 15px 0; font-size: 18px; font-weight: 600;
  color: var(--text); border-bottom: 1px solid var(--border);
}
.nav__mobile-sub { padding: 8px 0 8px 16px; }
.nav__mobile-sublink {
  display: block; padding: 10px 0; font-size: 15px; font-weight: 500;
  color: var(--text-muted); border-bottom: 1px solid var(--border);
}
.nav__mobile-sublink:last-child { border-bottom: none; }
.nav__mobile-cta { margin-top: 24px; display: flex; flex-direction: column; gap: 12px; }

/* ── Hero ────────────────────────────────────────────────────── */
.hero {
  min-height: 100vh; display: flex; align-items: center;
  position: relative; overflow: hidden;
  padding-top: var(--nav-h);
}
.hero__bg {
  position: absolute; inset: 0;
  background: linear-gradient(135deg, #141414 0%, #1E2832 60%, #0F1820 100%);
}
.hero__pattern {
  position: absolute; inset: 0; opacity: .04;
  background-image:
    linear-gradient(rgba(255,255,255,.5) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,.5) 1px, transparent 1px);
  background-size: 60px 60px;
}
.hero__photo {
  position: absolute; right: 0; top: 0; bottom: 0;
  width: 50%; overflow: hidden;
}
.hero__photo::before {
  content: ''; position: absolute; inset: 0; z-index: 1;
  background: linear-gradient(to right, #141414 0%, rgba(20,20,20,.4) 40%, transparent 100%);
}
.hero__photo-img {
  width: 100%; height: 100%; object-fit: cover;
  background: #1C2D3E;
}
.hero__photo-placeholder {
  width: 100%; height: 100%;
  background: linear-gradient(135deg, #1C2D3E 0%, #2A3F52 50%, #1A3044 100%);
  display: flex; align-items: center; justify-content: center;
}
.hero__photo-placeholder svg { opacity: .08; width: 200px; height: 200px; }
.hero__content {
  position: relative; z-index: 2;
  max-width: var(--max-w); margin-inline: auto; padding-inline: var(--section-px);
  padding-block: clamp(80px, 12vw, 160px);
  width: 100%;
}
.hero__inner { max-width: 640px; }
.hero__eyebrow { margin-bottom: 28px; }
.hero__title {
  font-size: clamp(38px, 5.5vw, 72px); font-weight: 800;
  letter-spacing: -.03em; line-height: 1.05;
  color: var(--white); margin-bottom: 24px;
}
.hero__title em { font-style: normal; color: var(--accent); }
.hero__desc {
  font-size: clamp(16px, 1.5vw, 19px); line-height: 1.75;
  color: rgba(255,255,255,.65); margin-bottom: 40px; font-weight: 400;
}
.hero__ctas { display: flex; align-items: center; flex-wrap: wrap; gap: 14px; margin-bottom: 56px; }
.hero__badges {
  display: flex; align-items: center; gap: 24px; flex-wrap: wrap;
}
.hero__badge {
  display: flex; align-items: center; gap: 10px;
  font-size: 13px; font-weight: 500; color: rgba(255,255,255,.55);
}
.hero__badge-icon {
  width: 36px; height: 36px; border-radius: 50%;
  background: rgba(255,255,255,.08); display: flex; align-items: center; justify-content: center;
  flex-shrink: 0;
}
.hero__badge-icon svg { width: 16px; height: 16px; fill: var(--accent); }

/* ── Photo Placeholder ──────────────────────────────────────── */
.photo-placeholder {
  background: var(--bg-warm); border-radius: var(--radius);
  display: flex; align-items: center; justify-content: center;
  overflow: hidden; position: relative;
}
.photo-placeholder::after {
  content: attr(data-label);
  position: absolute; bottom: 12px; left: 12px;
  font-size: 11px; font-weight: 600; letter-spacing: .06em; text-transform: uppercase;
  color: rgba(255,255,255,.5); background: rgba(0,0,0,.4);
  padding: 4px 10px; border-radius: 100px;
}
.photo-placeholder svg { opacity: .15; width: 48px; height: 48px; }
.pp--window { background: linear-gradient(135deg, #C8D8E8 0%, #9BB5C8 100%); }
.pp--door   { background: linear-gradient(135deg, #D4C8A8 0%, #B8A878 100%); }
.pp--blind  { background: linear-gradient(135deg, #C4C8D0 0%, #9098A8 100%); }
.pp--install{ background: linear-gradient(135deg, #B8C8B0 0%, #88A880 100%); }
.pp--dark   { background: linear-gradient(135deg, #303848 0%, #1E2630 100%); }

/* ── Section Headers ─────────────────────────────────────────── */
.section-header { margin-bottom: clamp(40px, 5vw, 64px); }
.section-header--center { text-align: center; }
.section-header__title { margin-top: 16px; margin-bottom: 16px; }
.section-header__desc { max-width: 560px; }
.section-header--center .section-header__desc { margin-inline: auto; }

/* ── Product Cards ───────────────────────────────────────────── */
.products-grid {
  display: grid; gap: 24px;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
}
.product-card {
  background: var(--white); border-radius: var(--radius-lg);
  border: 1px solid var(--border); overflow: hidden;
  transition: transform var(--t) var(--ease), box-shadow var(--t) var(--ease), border-color var(--t);
  display: flex; flex-direction: column;
}
.product-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
  border-color: transparent;
}
.product-card__media {
  aspect-ratio: 16/10; overflow: hidden; position: relative;
}
.product-card__media img {
  width: 100%; height: 100%; object-fit: contain; border-radius: 0;
  background: var(--white); padding: 16px;
  transition: transform .5s var(--ease);
}
.product-card__media .photo-placeholder {
  width: 100%; height: 100%; border-radius: 0;
  transition: transform .5s var(--ease);
}
.product-card:hover .product-card__media img,
.product-card:hover .product-card__media .photo-placeholder { transform: scale(1.04); }
.product-card__body { padding: 28px; flex: 1; display: flex; flex-direction: column; gap: 12px; }
.product-card__title { font-size: 20px; font-weight: 700; letter-spacing: -.01em; }
.product-card__desc { font-size: 14px; line-height: 1.65; color: var(--text-muted); flex: 1; }
.product-card__link {
  display: inline-flex; align-items: center; gap: 6px;
  font-size: 13px; font-weight: 600; color: var(--accent);
  margin-top: 4px; transition: gap var(--t);
}
.product-card__link:hover { gap: 10px; }
.product-card__link svg { width: 14px; height: 14px; stroke: currentColor; stroke-width: 2.5; fill: none; }

/* ── Feature Grid ─────────────────────────────────────────────── */
.features-grid {
  display: grid; gap: 2px;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
}
.feature-item {
  padding: 36px 32px;
  background: var(--white);
  border-radius: 0;
  transition: background var(--t);
}
.feature-item:hover { background: var(--bg-warm); }
.features-grid--rounded .feature-item { border-radius: var(--radius); background: var(--bg-warm); }
.features-grid--rounded .feature-item:hover { background: var(--white); box-shadow: var(--shadow); }
.feature-item__icon {
  width: 52px; height: 52px; border-radius: var(--radius-sm);
  background: var(--accent-light); display: flex; align-items: center; justify-content: center;
  margin-bottom: 20px;
}
.feature-item__icon svg { width: 24px; height: 24px; stroke: var(--accent); stroke-width: 2; fill: none; }
.feature-item__title { font-size: 17px; font-weight: 700; margin-bottom: 10px; letter-spacing: -.01em; }
.feature-item__desc { font-size: 14px; line-height: 1.65; color: var(--text-muted); }

/* ── Stats ────────────────────────────────────────────────────── */
.stats-grid {
  display: grid; gap: 1px;
  grid-template-columns: repeat(4, 1fr);
}
.stat-item { padding: 48px 24px; background: var(--bg-dark-2); text-align: center; display: flex; flex-direction: column; align-items: center; justify-content: center; }
.stat-item__num {
  font-size: clamp(40px, 5vw, 64px); font-weight: 800;
  letter-spacing: -.04em; color: var(--accent); line-height: 1;
  margin-bottom: 8px;
}
.stat-item__num sup { font-size: .5em; vertical-align: super; }
.stat-item__label { font-size: 13px; font-weight: 500; letter-spacing: .04em; text-transform: uppercase; color: rgba(255,255,255,.45); }

/* ── Certification ───────────────────────────────────────────── */
.cert-strip {
  display: flex; align-items: center; justify-content: center;
  flex-wrap: wrap; gap: 40px; padding-block: 48px;
  border-top: 1px solid var(--border); border-bottom: 1px solid var(--border);
}
.cert-badge {
  display: flex; align-items: center; gap: 14px;
  padding: 16px 28px; background: var(--white);
  border: 1px solid var(--border); border-radius: var(--radius);
  box-shadow: var(--shadow-xs); transition: box-shadow var(--t);
}
.cert-badge:hover { box-shadow: var(--shadow); }
.cert-badge__icon {
  width: 48px; height: 48px; background: var(--accent-light);
  border-radius: var(--radius-sm); display: flex; align-items: center; justify-content: center;
  flex-shrink: 0;
}
.cert-badge__icon svg { width: 24px; height: 24px; stroke: var(--accent); stroke-width: 1.5; fill: none; }
.cert-badge__text { font-size: 13px; font-weight: 700; letter-spacing: .02em; }
.cert-badge__sub  { font-size: 11px; color: var(--text-muted); font-weight: 400; margin-top: 2px; }

/* ── CTA Banner ──────────────────────────────────────────────── */
.cta-banner {
  background: var(--primary); color: var(--white);
  border-radius: var(--radius-xl); padding: clamp(48px, 6vw, 80px) clamp(32px, 5vw, 80px);
  display: flex; align-items: center; justify-content: space-between;
  flex-wrap: wrap; gap: 32px;
  position: relative; overflow: hidden;
}
.cta-banner::before {
  content: ''; position: absolute;
  width: 600px; height: 600px; border-radius: 50%;
  background: var(--accent); opacity: .06;
  right: -200px; top: -200px; pointer-events: none;
}
.cta-banner__text { position: relative; }
.cta-banner__title { font-size: clamp(24px, 3vw, 38px); font-weight: 800; letter-spacing: -.02em; margin-bottom: 10px; }
.cta-banner__desc { font-size: 16px; color: rgba(255,255,255,.6); }
.cta-banner__actions { display: flex; align-items: center; gap: 14px; flex-wrap: wrap; position: relative; }

/* ── Footer ──────────────────────────────────────────────────── */
.footer {
  background: var(--primary); color: rgba(255,255,255,.65);
  padding-block: clamp(60px, 7vw, 96px) 32px;
}
.footer__grid {
  display: grid; gap: 48px;
  grid-template-columns: 1.8fr repeat(3, 1fr);
  padding-bottom: clamp(48px, 6vw, 80px);
  border-bottom: 1px solid rgba(255,255,255,.1);
}
.footer__brand-logo {
  font-size: 22px; font-weight: 800; letter-spacing: -.04em; color: var(--white);
  display: flex; align-items: center; gap: 8px; margin-bottom: 16px;
}
.footer__brand-desc { font-size: 14px; line-height: 1.7; max-width: 280px; margin-bottom: 28px; }
.footer__contact-item {
  display: flex; align-items: center; gap: 10px;
  font-size: 14px; margin-bottom: 10px;
}
.footer__contact-item svg { width: 16px; height: 16px; stroke: var(--accent); stroke-width: 2; fill: none; flex-shrink: 0; }
.footer__col-title { font-size: 12px; font-weight: 700; letter-spacing: .1em; text-transform: uppercase; color: var(--white); margin-bottom: 20px; }
.footer__link {
  display: block; font-size: 14px; color: rgba(255,255,255,.55);
  margin-bottom: 12px; transition: color var(--t);
}
.footer__link:hover { color: var(--white); }
.footer__bottom {
  padding-top: 28px; display: flex; align-items: center;
  justify-content: space-between; flex-wrap: wrap; gap: 12px;
  font-size: 13px;
}
.footer__copy { color: rgba(255,255,255,.4); }
.footer__legal { display: flex; gap: 24px; }
.footer__legal a { color: rgba(255,255,255,.4); transition: color var(--t); }
.footer__legal a:hover { color: rgba(255,255,255,.7); }

/* ── Breadcrumb ──────────────────────────────────────────────── */
.breadcrumb {
  display: flex; align-items: center; gap: 8px;
  padding: calc(var(--nav-h) + 24px) 0 0;
  font-size: 13px; color: var(--text-light);
}
.breadcrumb a { color: var(--text-muted); transition: color var(--t); }
.breadcrumb a:hover { color: var(--primary); }
.breadcrumb svg { width: 12px; height: 12px; stroke: var(--text-light); stroke-width: 2; fill: none; }

/* ── Page Header ─────────────────────────────────────────────── */
.page-hero {
  padding-top: calc(var(--nav-h) + 48px); padding-bottom: clamp(48px, 6vw, 80px);
  background: var(--bg-dark);
  color: var(--white); position: relative; overflow: hidden;
}
.page-hero::before {
  content: ''; position: absolute; inset: 0;
  background-image: linear-gradient(rgba(255,255,255,.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,.03) 1px, transparent 1px);
  background-size: 48px 48px;
}
.page-hero__inner { position: relative; z-index: 1; }
.page-hero__breadcrumb { display: flex; align-items: center; gap: 8px; font-size: 13px; color: rgba(255,255,255,.4); margin-bottom: 24px; }
.page-hero__breadcrumb a { color: rgba(255,255,255,.5); transition: color var(--t); }
.page-hero__breadcrumb a:hover { color: rgba(255,255,255,.8); }
.page-hero__breadcrumb svg { width: 12px; height: 12px; stroke: currentColor; stroke-width: 2; fill: none; }
.page-hero__label { margin-bottom: 20px; }
.page-hero__title { color: var(--white); margin-bottom: 20px; }
.page-hero__desc { font-size: clamp(16px, 1.5vw, 18px); color: rgba(255,255,255,.6); max-width: 600px; line-height: 1.75; }

/* ── Product Detail ─────────────────────────────────────────── */
.product-detail { display: grid; grid-template-columns: 1fr 1fr; gap: 80px; align-items: start; }
.product-detail__media-main { aspect-ratio: 4/3; border-radius: var(--radius-lg); overflow: hidden; margin-bottom: 16px; background: var(--white); display: flex; align-items: center; justify-content: center; }
.product-detail__media-main img { width: 100%; height: 100%; object-fit: contain; padding: 24px; }
.product-detail__media-thumbs { display: flex; gap: 12px; }
.product-detail__thumb { aspect-ratio: 1; flex: 1; border-radius: var(--radius-sm); overflow: hidden; border: 2px solid transparent; cursor: pointer; transition: border-color var(--t); }
.product-detail__thumb.active { border-color: var(--accent); }
.product-detail__sticky { position: sticky; top: calc(var(--nav-h) + 24px); }
.product-detail__badge-row { display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: 24px; }
.product-detail__tag {
  font-size: 12px; font-weight: 600; letter-spacing: .06em; text-transform: uppercase;
  padding: 5px 12px; border-radius: 100px;
  background: var(--bg-warm); color: var(--text-muted);
}
.product-detail__tag--accent { background: var(--accent-light); color: var(--accent); }
.product-detail__title { margin-bottom: 16px; }
.product-detail__desc { font-size: 16px; line-height: 1.75; color: var(--text-muted); margin-bottom: 32px; }
.product-detail__specs { margin-bottom: 32px; }
.product-detail__spec { display: flex; align-items: flex-start; gap: 12px; padding: 14px 0; border-bottom: 1px solid var(--border); font-size: 14px; }
.product-detail__spec:first-child { border-top: 1px solid var(--border); }
.product-detail__spec-label { width: 160px; color: var(--text-muted); font-weight: 500; flex-shrink: 0; }
.product-detail__spec-val { font-weight: 600; color: var(--text); }
.product-detail__ctas { display: flex; gap: 12px; flex-wrap: wrap; }

/* ── Checklist ───────────────────────────────────────────────── */
.checklist { display: flex; flex-direction: column; gap: 12px; }
.checklist__item { display: flex; align-items: flex-start; gap: 12px; font-size: 15px; }
.checklist__icon { width: 22px; height: 22px; background: var(--accent-light); border-radius: 50%; display: flex; align-items: center; justify-content: center; flex-shrink: 0; margin-top: 1px; }
.checklist__icon svg { width: 12px; height: 12px; stroke: var(--accent); stroke-width: 2.5; fill: none; }

/* ── Gallery ─────────────────────────────────────────────────── */
.gallery-grid {
  columns: 3; gap: 16px; column-gap: 16px;
}
.gallery-item {
  break-inside: avoid; margin-bottom: 16px;
  border-radius: var(--radius); overflow: hidden;
  cursor: pointer; position: relative;
}
.gallery-item::after {
  content: ''; position: absolute; inset: 0;
  background: rgba(0,0,0,0); transition: background var(--t);
  display: flex; align-items: center; justify-content: center;
}
.gallery-item:hover::after { background: rgba(0,0,0,.25); }
.gallery-item img, .gallery-item .photo-placeholder { width: 100%; transition: transform .5s var(--ease); }
.gallery-item:hover img, .gallery-item:hover .photo-placeholder { transform: scale(1.03); }

/* ── Lightbox ────────────────────────────────────────────────── */
.lightbox {
  position: fixed; inset: 0; z-index: 2000;
  background: rgba(0,0,0,.92); backdrop-filter: blur(12px);
  display: none; align-items: center; justify-content: center;
  padding: 24px;
}
.lightbox.open { display: flex; }
.lightbox__img { max-width: 90vw; max-height: 90vh; border-radius: var(--radius); object-fit: contain; }
.lightbox__close { position: absolute; top: 24px; right: 24px; color: white; width: 44px; height: 44px; background: rgba(255,255,255,.1); border-radius: 50%; display: flex; align-items: center; justify-content: center; cursor: pointer; font-size: 22px; transition: background var(--t); }
.lightbox__close:hover { background: rgba(255,255,255,.2); }

/* ── Configurator ────────────────────────────────────────────── */
.configurator { display: grid; grid-template-columns: 1fr 380px; gap: 40px; align-items: start; }
.config-panel { background: var(--white); border: 1px solid var(--border); border-radius: var(--radius-lg); padding: 36px; }
.config-step { margin-bottom: 32px; padding-bottom: 32px; border-bottom: 1px solid var(--border); }
.config-step:last-child { border-bottom: none; margin-bottom: 0; padding-bottom: 0; }
.config-step__title { font-size: 16px; font-weight: 700; margin-bottom: 16px; display: flex; align-items: center; gap: 10px; }
.config-step__num { width: 28px; height: 28px; background: var(--bg-dark); color: var(--white); border-radius: 50%; display: flex; align-items: center; justify-content: center; font-size: 12px; font-weight: 700; flex-shrink: 0; }
.config-options { display: flex; flex-wrap: wrap; gap: 10px; }
.config-option {
  padding: 10px 18px; border: 1.5px solid var(--border);
  border-radius: var(--radius-sm); font-size: 14px; font-weight: 500;
  cursor: pointer; transition: all var(--t); background: var(--white);
  color: var(--text-muted);
}
.config-option:hover { border-color: var(--accent); color: var(--accent); background: var(--accent-light); }
.config-option.selected { border-color: var(--accent); background: var(--accent-light); color: var(--accent); font-weight: 600; }
.config-dims { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
.config-input { width: 100%; padding: 12px 16px; border: 1.5px solid var(--border); border-radius: var(--radius-sm); font-size: 15px; font-family: var(--font); color: var(--text); outline: none; transition: border-color var(--t), box-shadow var(--t); }
.config-input:focus { border-color: var(--accent); box-shadow: 0 0 0 3px rgba(190,30,40,.15); }
.config-input-label { font-size: 13px; font-weight: 500; color: var(--text-muted); margin-bottom: 6px; }
.config-summary { background: var(--bg-dark); color: var(--white); border-radius: var(--radius-lg); padding: 32px; position: sticky; top: calc(var(--nav-h) + 24px); }
.config-summary__title { font-size: 18px; font-weight: 700; margin-bottom: 24px; }
.config-summary__row { display: flex; justify-content: space-between; align-items: flex-start; font-size: 14px; padding: 12px 0; border-bottom: 1px solid rgba(255,255,255,.08); gap: 12px; }
.config-summary__row:last-of-type { border-bottom: none; }
.config-summary__key { color: rgba(255,255,255,.5); }
.config-summary__val { font-weight: 600; text-align: right; }
.config-summary__total { font-size: 13px; color: rgba(255,255,255,.4); margin-top: 8px; }
.config-summary__cta { margin-top: 24px; }

/* ── Contact ─────────────────────────────────────────────────── */
.contact-layout { display: grid; grid-template-columns: 1fr 480px; gap: 80px; align-items: start; }
.contact-form { background: var(--white); border: 1px solid var(--border); border-radius: var(--radius-lg); padding: clamp(28px, 4vw, 48px); }
.form-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.form-field { display: flex; flex-direction: column; gap: 6px; }
.form-field--full { grid-column: 1 / -1; }
.form-label { font-size: 13px; font-weight: 600; color: var(--text); }
.form-input, .form-textarea, .form-select {
  width: 100%; padding: 13px 16px; border: 1.5px solid var(--border);
  border-radius: var(--radius-sm); font-size: 15px; font-family: var(--font);
  color: var(--text); outline: none; transition: border-color var(--t), box-shadow var(--t);
  background: var(--bg);
}
.form-input:focus, .form-textarea:focus, .form-select:focus {
  border-color: var(--accent); box-shadow: 0 0 0 3px rgba(190,30,40,.12);
  background: var(--white);
}
.form-textarea { resize: vertical; min-height: 140px; }
.form-select { appearance: none; cursor: pointer; }
.contact-info { padding-top: 8px; }
.contact-info__title { font-size: 24px; font-weight: 700; letter-spacing: -.015em; margin-bottom: 8px; }
.contact-info__desc { font-size: 15px; color: var(--text-muted); line-height: 1.7; margin-bottom: 36px; }
.contact-card {
  background: var(--white); border: 1px solid var(--border);
  border-radius: var(--radius); padding: 24px; margin-bottom: 16px;
  display: flex; align-items: flex-start; gap: 16px; transition: box-shadow var(--t);
}
.contact-card:hover { box-shadow: var(--shadow); }
.contact-card__icon {
  width: 48px; height: 48px; background: var(--accent-light);
  border-radius: var(--radius-sm); display: flex; align-items: center; justify-content: center; flex-shrink: 0;
}
.contact-card__icon svg { width: 22px; height: 22px; stroke: var(--accent); stroke-width: 2; fill: none; }
.contact-card__title { font-size: 14px; font-weight: 700; margin-bottom: 4px; }
.contact-card__val { font-size: 15px; color: var(--text-muted); }
.map-embed { height: 300px; background: var(--bg-warm); border-radius: var(--radius-lg); overflow: hidden; margin-top: 24px; position: relative; }
.map-embed iframe { width: 100%; height: 100%; border: none; }

/* ── About ───────────────────────────────────────────────────── */
.about-split { display: grid; grid-template-columns: 1fr 1fr; gap: 80px; align-items: center; }
.values-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 24px; }
.value-card { background: var(--white); border: 1px solid var(--border); border-radius: var(--radius); padding: 28px; transition: box-shadow var(--t); }
.value-card:hover { box-shadow: var(--shadow); }
.value-card__num { font-size: 40px; font-weight: 800; letter-spacing: -.04em; color: var(--border); line-height: 1; margin-bottom: 12px; }
.value-card__title { font-size: 17px; font-weight: 700; margin-bottom: 8px; }
.value-card__desc { font-size: 14px; line-height: 1.65; color: var(--text-muted); }

/* ── Timeline ────────────────────────────────────────────────── */
.timeline { position: relative; padding-left: 32px; }
.timeline::before { content: ''; position: absolute; left: 7px; top: 6px; bottom: 6px; width: 2px; background: var(--border); }
.timeline__item { position: relative; padding-bottom: 40px; }
.timeline__item:last-child { padding-bottom: 0; }
.timeline__dot { position: absolute; left: -32px; width: 16px; height: 16px; background: var(--white); border: 2px solid var(--accent); border-radius: 50%; top: 4px; }
.timeline__year { font-size: 12px; font-weight: 700; letter-spacing: .08em; text-transform: uppercase; color: var(--accent); margin-bottom: 6px; }
.timeline__title { font-size: 16px; font-weight: 700; margin-bottom: 6px; }
.timeline__desc { font-size: 14px; color: var(--text-muted); line-height: 1.65; }

/* ── B2B ─────────────────────────────────────────────────────── */
.b2b-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(280px, 1fr)); gap: 24px; }
.b2b-card { background: var(--white); border: 1px solid var(--border); border-radius: var(--radius-lg); padding: 32px; transition: all var(--t); }
.b2b-card:hover { box-shadow: var(--shadow-lg); border-color: transparent; transform: translateY(-4px); }
.b2b-card__num { font-size: 56px; font-weight: 800; letter-spacing: -.05em; color: var(--bg-warm); line-height: 1; margin-bottom: 16px; }
.b2b-card__title { font-size: 18px; font-weight: 700; margin-bottom: 10px; }
.b2b-card__desc { font-size: 14px; line-height: 1.7; color: var(--text-muted); }

/* ── Animations ──────────────────────────────────────────────── */
@keyframes fadeUp { from { opacity: 0; transform: translateY(24px); } to { opacity: 1; transform: translateY(0); } }
@keyframes fadeIn { from { opacity: 0; } to { opacity: 1; } }
.animate { opacity: 0; animation: fadeUp .6s var(--ease) forwards; }
.animate--delay-1 { animation-delay: .1s; }
.animate--delay-2 { animation-delay: .2s; }
.animate--delay-3 { animation-delay: .3s; }
.animate--delay-4 { animation-delay: .4s; }
.animate--delay-5 { animation-delay: .5s; }
.in-view { opacity: 0; transform: translateY(20px); transition: opacity .6s var(--ease), transform .6s var(--ease); }
.in-view.visible { opacity: 1; transform: translateY(0); }

/* ── Scroll Progress ──────────────────────────────────────────── */
.scroll-progress { position: fixed; top: 0; left: 0; height: 3px; background: var(--accent); z-index: 1001; width: 0%; transition: width .1s; }

/* ── Dividers ────────────────────────────────────────────────── */
.divider { height: 1px; background: var(--border); margin-block: var(--section-py); }
.divider--sm { margin-block: 32px; }

/* ── Tags Row ─────────────────────────────────────────────────── */
.tags { display: flex; flex-wrap: wrap; gap: 8px; }
.tag {
  font-size: 12px; font-weight: 600; letter-spacing: .05em; text-transform: uppercase;
  padding: 5px 12px; border-radius: 100px;
  background: var(--bg-warm); color: var(--text-muted);
  border: 1px solid var(--border);
}
.tag--accent { background: var(--accent-light); color: var(--accent); border-color: transparent; }

/* ── Notice / Alert ──────────────────────────────────────────── */
.notice {
  display: flex; align-items: flex-start; gap: 14px;
  padding: 20px 24px; background: var(--accent-light);
  border: 1px solid rgba(190,30,40,.25); border-radius: var(--radius);
  font-size: 14px; line-height: 1.6;
}
.notice__icon { width: 20px; height: 20px; stroke: var(--accent); stroke-width: 2; fill: none; flex-shrink: 0; margin-top: 1px; }

/* ── Toast / Success ─────────────────────────────────────────── */
.toast {
  position: fixed; bottom: 24px; left: 50%; transform: translateX(-50%) translateY(20px);
  background: var(--primary); color: var(--white);
  padding: 16px 28px; border-radius: var(--radius); font-size: 15px; font-weight: 500;
  box-shadow: var(--shadow-lg); z-index: 3000;
  opacity: 0; pointer-events: none;
  transition: all .3s var(--ease);
}
.toast.show { opacity: 1; transform: translateX(-50%) translateY(0); pointer-events: all; }

/* ── Responsive ──────────────────────────────────────────────── */

/* Tablet: ≤ 1024px */
@media (max-width: 1024px) {
  .product-detail { grid-template-columns: 1fr; gap: 40px; }
  .product-detail__sticky { position: static; }
  .contact-layout { grid-template-columns: 1fr; gap: 40px; }
  .about-split { grid-template-columns: 1fr; gap: 48px; }
  .configurator { grid-template-columns: 1fr; }
  .config-summary { position: static; }
  .footer__grid { grid-template-columns: 1fr 1fr; gap: 36px; }
  .hero__photo { width: 45%; }
}

/* Mobile: ≤ 768px */
@media (max-width: 768px) {
  :root { --nav-h: 64px; --section-py: 60px; }

  .nav__links, .nav__actions, .nav__tel { display: none; }
  .nav__hamburger { display: flex; }

  .hero__photo { display: none; }
  .hero__title { font-size: clamp(32px, 8vw, 48px); }
  .hero__inner { max-width: 100%; }

  .products-grid { grid-template-columns: 1fr; }
  .features-grid { grid-template-columns: 1fr; }
  .stats-grid { grid-template-columns: 1fr 1fr; }
  .values-grid { grid-template-columns: 1fr; }
  .b2b-grid { grid-template-columns: 1fr; }
  .form-grid { grid-template-columns: 1fr; }
  .footer__grid { grid-template-columns: 1fr; gap: 32px; }
  .footer__bottom { flex-direction: column; text-align: center; }
  .cta-banner { flex-direction: column; gap: 24px; text-align: center; }
  .cta-banner__actions { justify-content: center; }
  .cert-strip { gap: 16px; }
  .cert-badge { padding: 12px 16px; }
  .gallery-grid { columns: 2; }
  .page-hero { padding-top: calc(var(--nav-h) + 32px); }
  .config-dims { grid-template-columns: 1fr; }
  .hero__badges { flex-direction: column; align-items: flex-start; gap: 12px; }
}

/* Small mobile: ≤ 480px */
@media (max-width: 480px) {
  .gallery-grid { columns: 1; }
  .stats-grid { grid-template-columns: 1fr; }
  .hero__ctas { flex-direction: column; width: 100%; }
  .hero__ctas .btn { width: 100%; justify-content: center; }
  .product-detail__ctas { flex-direction: column; }
  .product-detail__ctas .btn { width: 100%; justify-content: center; }
}