/* ============================================================
   Konsmar Konstrukcje — one-page landing
   ============================================================ */

@import url('https://fonts.googleapis.com/css2?family=Archivo:wght@500;600;700&family=Source+Sans+3:wght@400;500;600;700&display=swap');

:root {
  --color-bg: #f6f5f2;
  --color-surface: #ffffff;
  --color-ink: #201f1e;
  --color-ink-soft: #5b5b5f;
  --color-graphite: #34363a;
  --color-graphite-mid: #26282b;
  --color-graphite-dark: #17181a;
  --color-accent: #e2551f;
  --color-accent-dark: #b8431a;
  --color-accent-glow: rgba(226, 85, 31, 0.28);
  --color-line: #e3e0da;
  --color-line-dark: rgba(255,255,255,0.12);
  --shadow-card: 0 10px 30px rgba(23, 24, 26, 0.07);
  --shadow-lift: 0 22px 44px rgba(23, 24, 26, 0.16);
  --radius: 3px;
  --container: 1180px;
  --font-head: 'Archivo', 'Helvetica Neue', Arial, sans-serif;
  --font-body: 'Source Sans 3', 'Segoe UI', sans-serif;
  --ease: cubic-bezier(.16, 1, .3, 1);
}

* { box-sizing: border-box; }

/* `hidden` must always win, even on elements whose own rules set `display`
   (author display rules otherwise override the UA [hidden] stylesheet). */
[data-lang][hidden] { display: none !important; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  font-family: var(--font-body);
  color: var(--color-ink);
  background: var(--color-bg);
  -webkit-font-smoothing: antialiased;
}

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

.container {
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 24px;
}

a { color: inherit; }

::selection { background: var(--color-accent); color: #fff; }

/* custom scrollbar — thin, brand-tinted */
html { scrollbar-color: var(--color-accent) transparent; scrollbar-width: thin; }
::-webkit-scrollbar { width: 10px; height: 10px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb {
  background: var(--color-accent);
  border-radius: 999px;
  border: 2px solid var(--color-bg);
}

/* ---------- scroll progress ---------- */
.scroll-progress {
  position: fixed;
  top: 0; left: 0;
  height: 3px;
  width: 0%;
  background: linear-gradient(90deg, var(--color-accent), var(--color-accent-dark));
  z-index: 200;
  transition: width 0.1s linear;
}

.lang-switch {
  display: inline-flex;
  border: 1px solid rgba(255,255,255,0.35);
  border-radius: 999px;
  overflow: hidden;
  font-family: var(--font-head);
  font-weight: 700;
  font-size: 13px;
  letter-spacing: 0.04em;
}
.lang-switch button {
  background: transparent;
  border: none;
  padding: 6px 12px;
  cursor: pointer;
  font: inherit;
  color: rgba(255,255,255,0.8);
  transition: color 0.2s ease;
}
.lang-switch button.active {
  background: var(--color-accent);
  color: #fff;
}
.site-header.is-scrolled .lang-switch { border-color: var(--color-line); }
.site-header.is-scrolled .lang-switch button { color: var(--color-ink-soft); }
.site-header.is-scrolled .lang-switch button.active { color: #fff; }

/* ---------- header ---------- */
.site-header {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  padding: 18px 0;
  transition: background 0.3s var(--ease), box-shadow 0.3s var(--ease), padding 0.3s var(--ease);
}
.site-header .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}
.site-header.is-scrolled {
  background: rgba(255,255,255,0.92);
  backdrop-filter: blur(10px) saturate(1.4);
  -webkit-backdrop-filter: blur(10px) saturate(1.4);
  box-shadow: 0 1px 0 var(--color-line), 0 12px 30px rgba(23,24,26,0.06);
  padding: 10px 0;
}
.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
}
.brand img {
  height: 40px;
  width: auto;
  filter: brightness(0) invert(1);
  transition: transform 0.3s var(--ease), filter 0.3s ease;
}
.brand:hover img { transform: scale(1.03); }
.site-header.is-scrolled .brand img { filter: none; }

.main-nav {
  display: flex;
  align-items: center;
  gap: 30px;
  font-family: var(--font-head);
  font-weight: 600;
  font-size: 16px;
  letter-spacing: 0.02em;
}
.main-nav a {
  position: relative;
  text-decoration: none;
  color: #fff;
  opacity: 0.92;
  padding-bottom: 3px;
  transition: opacity 0.2s ease;
}
.main-nav a::after {
  content: "";
  position: absolute;
  left: 0; bottom: 0;
  width: 0%;
  height: 2px;
  background: var(--color-accent);
  transition: width 0.25s var(--ease);
}
.site-header.is-scrolled .main-nav a { color: var(--color-graphite); }
.main-nav a:hover { opacity: 1; }
.main-nav a:hover::after { width: 100%; }

.header-actions { display: flex; align-items: center; gap: 18px; }

.nav-toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px;
}
.nav-toggle span {
  display: block;
  width: 26px;
  height: 2px;
  background: #fff;
  margin: 5px 0;
  transition: background 0.2s ease, transform 0.25s ease, opacity 0.2s ease;
}
.site-header.is-scrolled .nav-toggle span { background: var(--color-graphite); }
.site-header.is-open .nav-toggle span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.site-header.is-open .nav-toggle span:nth-child(2) { opacity: 0; }
.site-header.is-open .nav-toggle span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* ---------- buttons ---------- */
.btn {
  position: relative;
  display: inline-flex;
  align-items: center;
  gap: 9px;
  font-family: var(--font-head);
  font-weight: 700;
  font-size: 16px;
  letter-spacing: 0.03em;
  text-decoration: none;
  padding: 13px 26px;
  border-radius: var(--radius);
  border: 2px solid transparent;
  cursor: pointer;
  overflow: hidden;
  isolation: isolate;
  transition: transform 0.2s var(--ease), border-color 0.2s ease, color 0.2s ease, box-shadow 0.3s ease;
}
.btn:active { transform: translateY(1px) scale(0.99); }
.btn svg { width: 15px; height: 15px; flex: none; transition: transform 0.25s var(--ease); }
.btn:hover svg { transform: translateX(3px); }

.btn-accent {
  background: var(--color-accent);
  color: #fff;
  box-shadow: 0 10px 24px -8px var(--color-accent-glow);
}
.btn-accent::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: -1;
  background: var(--color-accent-dark);
  transform: translateX(-101%);
  transition: transform 0.3s var(--ease);
}
.btn-accent:hover::before { transform: translateX(0); }
.btn-accent:hover { box-shadow: 0 14px 30px -8px var(--color-accent-glow); }

.btn-ghost {
  border-color: rgba(255,255,255,0.55);
  color: #fff;
  background: transparent;
}
.btn-ghost::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: -1;
  background: #fff;
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.3s var(--ease);
}
.btn-ghost:hover { color: var(--color-graphite-dark); border-color: #fff; }
.btn-ghost:hover::before { transform: scaleX(1); }
.site-header.is-scrolled .btn-ghost { display: none; }

/* ---------- hero ---------- */
.hero {
  position: relative;
  min-height: 100svh;
  display: flex;
  align-items: flex-end;
  color: #fff;
  background: var(--color-graphite-dark);
  overflow: hidden;
}
.parallax-media {
  position: absolute;
  left: 0; right: 0;
  top: -15%;
  height: 130%;
  will-change: transform;
}
@media (prefers-reduced-motion: reduce) {
  .parallax-media { transform: none !important; top: 0; height: 100%; }
}
.hero-media {
  overflow: hidden;
  background: url('img/hero-poster.jpg') center 40% / cover no-repeat;
}
.hero-media video {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  filter: grayscale(0.35) contrast(1.08) saturate(0.9);
  transform: scale(1.06);
}

@media (prefers-reduced-motion: reduce) {
  .hero-media video { display: none; }
}
.hero::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: 1;
  background:
    linear-gradient(180deg, rgba(15,16,17,0.62) 0%, rgba(17,18,19,0.32) 32%, rgba(15,16,17,0.94) 100%),
    linear-gradient(100deg, rgba(226,85,31,0.16), transparent 45%);
}
.hero-content {
  position: relative;
  z-index: 2;
  padding-top: 168px;
  padding-bottom: 108px;
  max-width: 760px;
}
.hero-kicker {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-head);
  font-weight: 700;
  font-size: 14px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--color-accent);
  margin-bottom: 20px;
  animation: fade-up 0.7s var(--ease) both;
}
.hero-kicker::before {
  content: "";
  width: 26px;
  height: 2px;
  background: var(--color-accent);
}
.hero h1 {
  font-family: var(--font-head);
  font-weight: 700;
  font-size: clamp(34px, 5.4vw, 64px);
  line-height: 1.04;
  letter-spacing: -0.01em;
  margin: 0 0 24px;
  text-wrap: balance;
  animation: fade-up 0.8s var(--ease) 0.08s both;
}
.hero p {
  font-size: clamp(16px, 1.7vw, 19px);
  line-height: 1.6;
  color: rgba(255,255,255,0.82);
  max-width: 560px;
  margin: 0 0 38px;
  animation: fade-up 0.8s var(--ease) 0.16s both;
}
.hero-actions {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
  animation: fade-up 0.8s var(--ease) 0.24s both;
}
.hero-scroll-cue {
  position: absolute;
  z-index: 2;
  right: 28px;
  bottom: 34px;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  color: rgba(255,255,255,0.65);
  font-family: var(--font-head);
  font-size: 12px;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  writing-mode: vertical-rl;
}
.hero-scroll-cue svg {
  writing-mode: horizontal-tb;
  width: 14px; height: 20px;
  animation: cue-bounce 2s ease-in-out infinite;
}

@keyframes fade-up {
  from { opacity: 0; transform: translateY(16px); }
  to { opacity: 1; transform: none; }
}
@keyframes cue-bounce {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(6px); }
}

/* ---------- secondary page header ---------- */
.page-header {
  position: relative;
  overflow: hidden;
  background: var(--color-graphite-dark);
  color: #fff;
  padding: 168px 0 80px;
}
.page-header-media {
  background: url('img/ref-wiata-1.webp') center 40% / cover no-repeat;
  filter: grayscale(0.4) contrast(1.1) brightness(0.55) saturate(0.9);
}
.page-header::before {
  content: "";
  position: absolute;
  inset: 0;
  background:
    radial-gradient(900px 420px at 90% -10%, rgba(226,85,31,0.18), transparent 60%),
    linear-gradient(100deg, rgba(15,16,17,0.9) 0%, rgba(15,16,17,0.72) 55%, rgba(15,16,17,0.5) 100%);
}
.page-header .container { position: relative; z-index: 1; }
.page-header-content { max-width: 720px; }
.page-header h1 {
  font-family: var(--font-head);
  font-weight: 700;
  font-size: clamp(30px, 4.2vw, 48px);
  line-height: 1.08;
  letter-spacing: -0.01em;
  margin: 0 0 18px;
  text-wrap: balance;
}
.page-header p {
  font-size: 17px;
  line-height: 1.6;
  color: rgba(255,255,255,0.75);
  margin: 0;
}

/* ---------- projects (Referenzen) ---------- */
.projects { background: var(--color-surface); padding-top: 88px; }
.project-card {
  display: grid;
  grid-template-columns: 1.1fr 1fr;
  gap: 44px;
  align-items: center;
  padding: 56px 0;
  border-bottom: 1px solid var(--color-line);
}
.project-card:first-child { padding-top: 0; }
.project-card:nth-child(even) .project-media { order: 2; }
.project-media {
  display: grid;
  grid-template-columns: 1.3fr 1fr;
  gap: 12px;
}
.project-media img {
  width: 100%;
  height: 100%;
  min-height: 180px;
  object-fit: cover;
  border-radius: var(--radius);
  filter: grayscale(0.55) contrast(1.12) brightness(0.94) saturate(0.9);
  transition: filter 0.4s ease, transform 0.5s var(--ease);
}
.project-media:hover img { filter: grayscale(0.15) contrast(1.06) brightness(1) saturate(1); transform: scale(1.02); }
.project-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  font-family: var(--font-head);
  font-weight: 600;
  font-size: 13.5px;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--color-ink-soft);
  margin-bottom: 12px;
}
.project-meta span[aria-hidden] { color: var(--color-accent); }
.project-body h2 {
  font-family: var(--font-head);
  font-weight: 700;
  font-size: clamp(22px, 2.4vw, 28px);
  line-height: 1.15;
  margin: 0 0 14px;
  color: var(--color-graphite-dark);
}
.project-body p {
  color: var(--color-ink-soft);
  line-height: 1.65;
  font-size: 16px;
  margin: 0 0 20px;
}
.project-tags { display: flex; flex-wrap: wrap; gap: 8px; }
.project-tags .offer-tag {
  color: var(--color-ink-soft);
  border-color: var(--color-line);
}
.project-tags .offer-tag:hover { border-color: var(--color-accent); color: var(--color-graphite-dark); background: rgba(226,85,31,0.06); }

.cta-band { background: var(--color-bg); padding: 88px 0 104px; }
.cta-band-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 32px;
  flex-wrap: wrap;
  background: var(--color-graphite-dark);
  color: #fff;
  padding: 48px 56px;
  border-radius: var(--radius);
}
.cta-band-inner h2 {
  font-family: var(--font-head);
  font-weight: 700;
  font-size: clamp(22px, 2.6vw, 30px);
  margin: 0 0 8px;
}
.cta-band-inner p { margin: 0; color: rgba(255,255,255,0.7); font-size: 16px; }

/* ---------- section basics ---------- */
section { padding: 104px 0; position: relative; }
.section-head {
  display: flex;
  align-items: baseline;
  gap: 18px;
  margin-bottom: 14px;
}
.section-index {
  font-family: var(--font-head);
  font-weight: 700;
  font-size: 14px;
  font-variant-numeric: tabular-nums;
  color: #c7c3bc;
  letter-spacing: 0.04em;
}
.offer .section-index { color: rgba(255,255,255,0.28); }
.section-label {
  font-family: var(--font-head);
  font-weight: 700;
  font-size: 14px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--color-accent);
  display: inline-flex;
  align-items: center;
  gap: 8px;
}
.section-label::before {
  content: "";
  width: 26px;
  height: 2px;
  background: var(--color-accent);
}
.section-title {
  font-family: var(--font-head);
  font-weight: 700;
  font-size: clamp(28px, 3.4vw, 44px);
  line-height: 1.08;
  letter-spacing: -0.01em;
  margin: 0 0 18px;
  color: var(--color-graphite-dark);
  text-wrap: balance;
}
.section-intro {
  max-width: 640px;
  color: var(--color-ink-soft);
  font-size: 17px;
  line-height: 1.6;
  margin: 0 0 48px;
}

/* ---------- USP ---------- */
.usp { background: var(--color-surface); }
.usp-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.usp-grid .usp-card:first-child {
  grid-column: span 2;
}
.usp-card {
  background: var(--color-bg);
  border: 1px solid var(--color-line);
  border-radius: var(--radius);
  padding: 34px;
  position: relative;
  overflow: hidden;
  transition: transform 0.35s var(--ease), box-shadow 0.35s var(--ease), border-color 0.35s ease;
}
.usp-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-lift);
  border-color: transparent;
}
.usp-card::after {
  content: "";
  position: absolute;
  right: -30px; bottom: -30px;
  width: 130px; height: 130px;
  background: var(--color-accent);
  opacity: 0.055;
  clip-path: polygon(50% 0, 100% 100%, 0 100%);
  transition: opacity 0.35s ease, transform 0.35s var(--ease);
}
.usp-card:hover::after { opacity: 0.1; transform: scale(1.12); }
.usp-icon {
  width: 50px; height: 50px;
  margin-bottom: 22px;
  color: var(--color-accent);
  transition: transform 0.35s var(--ease);
}
.usp-card:hover .usp-icon { transform: translateY(-3px); }
.usp-card h3 {
  font-family: var(--font-head);
  font-weight: 700;
  font-size: 21px;
  margin: 0 0 10px;
  color: var(--color-graphite-dark);
}
.usp-card p {
  margin: 0;
  color: var(--color-ink-soft);
  line-height: 1.6;
  font-size: 15.5px;
}

/* ---------- Oferta ---------- */
.offer {
  background:
    radial-gradient(1100px 480px at 85% -10%, rgba(226,85,31,0.10), transparent 60%),
    var(--color-graphite-dark);
  color: #fff;
}
.offer .section-title { color: #fff; }
.offer .section-intro { color: rgba(255,255,255,0.68); }

.offer-layout {
  display: grid;
  grid-template-columns: 1.1fr 1.4fr;
  gap: 40px;
  align-items: start;
}
.offer-main {
  background: rgba(255,255,255,0.035);
  border: 1px solid var(--color-line-dark);
  border-radius: var(--radius);
  padding: 38px;
}
.offer-main h3 {
  font-family: var(--font-head);
  font-size: 26px;
  font-weight: 700;
  margin: 0 0 14px;
}
.offer-main p {
  color: rgba(255,255,255,0.75);
  line-height: 1.65;
  margin: 0 0 26px;
}
.offer-tags { display: flex; flex-wrap: wrap; gap: 10px; }
.offer-tag {
  font-family: var(--font-head);
  font-size: 13.5px;
  font-weight: 600;
  letter-spacing: 0.02em;
  border: 1px solid rgba(255,255,255,0.25);
  padding: 7px 14px;
  border-radius: 999px;
  color: rgba(255,255,255,0.85);
  transition: border-color 0.25s ease, color 0.25s ease, background 0.25s ease;
}
.offer-tag:hover { border-color: var(--color-accent); color: #fff; background: rgba(226,85,31,0.14); }

.offer-gallery {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  grid-template-rows: repeat(2, 160px);
  gap: 14px;
}
.offer-gallery figure {
  margin: 0;
  position: relative;
  border-radius: var(--radius);
  overflow: hidden;
}
.offer-gallery img {
  width: 100%; height: 100%;
  object-fit: cover;
  filter: grayscale(0.55) contrast(1.12) brightness(0.92) saturate(0.9);
  transform: scale(1.01);
  transition: transform 0.6s var(--ease), filter 0.5s ease;
}
.offer-gallery figure::before {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(160deg, rgba(226,85,31,0.22), rgba(23,24,26,0.28) 70%);
  mix-blend-mode: multiply;
  pointer-events: none;
}
.offer-gallery figure:hover img { transform: scale(1.08); filter: grayscale(0.15) contrast(1.08) brightness(1) saturate(1); }
.offer-gallery figure:first-child { grid-row: span 2; }
.offer-gallery figcaption {
  position: absolute;
  left: 0; right: 0; bottom: 0;
  z-index: 1;
  padding: 12px 14px;
  font-family: var(--font-head);
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.03em;
  color: #fff;
  background: linear-gradient(0deg, rgba(0,0,0,0.7), transparent);
}

.offer-more {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin-top: 32px;
  font-family: var(--font-head);
  font-weight: 700;
  font-size: 15px;
  letter-spacing: 0.03em;
  text-decoration: none;
  color: #fff;
  border-bottom: 2px solid var(--color-accent);
  padding-bottom: 3px;
}
.offer-more svg { width: 14px; height: 14px; transition: transform 0.25s var(--ease); }
.offer-more:hover svg { transform: translateX(4px); }

/* ---------- Ablauf / process ---------- */
.process { background: var(--color-surface); }
.process-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 28px;
  counter-reset: step;
}
.process-step {
  position: relative;
  padding-top: 28px;
  border-top: 3px solid var(--color-line);
  transition: border-color 0.3s ease;
}
.process-step:hover { border-color: var(--color-accent); }
.process-num {
  display: block;
  font-family: var(--font-head);
  font-weight: 700;
  font-size: 15px;
  font-variant-numeric: tabular-nums;
  color: var(--color-accent);
  letter-spacing: 0.04em;
  margin-bottom: 14px;
}
.process-step h3 {
  font-family: var(--font-head);
  font-weight: 700;
  font-size: 21px;
  margin: 0 0 10px;
  color: var(--color-graphite-dark);
}
.process-step p {
  margin: 0;
  color: var(--color-ink-soft);
  font-size: 15px;
  line-height: 1.6;
}

/* ---------- About ---------- */
.about {
  position: relative;
  overflow: hidden;
  background: var(--color-graphite-dark);
  color: #fff;
}
.about-media {
  background: url('img/oferta-targowek-2.webp') center 45% / cover no-repeat;
  filter: grayscale(0.35) contrast(1.1) brightness(0.6) saturate(0.9);
}
.about::before {
  content: "";
  position: absolute;
  inset: 0;
  background:
    linear-gradient(100deg, rgba(15,16,17,0.92) 0%, rgba(15,16,17,0.8) 40%, rgba(15,16,17,0.55) 100%);
}
.about .container { position: relative; z-index: 1; }
.about .section-label::before { background: var(--color-accent); }
.about .section-title { color: #fff; }
.about-layout {
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
  gap: 56px;
  align-items: center;
}
.about-photo {
  position: relative;
}
.about-photo img {
  width: 100%;
  aspect-ratio: 4 / 5;
  object-fit: cover;
  border-radius: var(--radius);
  filter: grayscale(0.5) contrast(1.1) brightness(0.95) saturate(0.9);
  box-shadow: 0 24px 50px rgba(0,0,0,0.4);
}
.about-photo::before {
  content: "";
  position: absolute;
  inset: 0;
  border-radius: var(--radius);
  background: linear-gradient(160deg, rgba(226,85,31,0.22), rgba(23,24,26,0.3) 75%);
  mix-blend-mode: multiply;
}
.about-photo::after {
  content: "";
  position: absolute;
  top: -18px; left: -18px;
  width: 90px; height: 70px;
  border-top: 4px solid var(--color-accent);
  border-left: 4px solid var(--color-accent);
}
.about-text {
  background: rgba(15,16,17,0.72);
  backdrop-filter: blur(6px);
  -webkit-backdrop-filter: blur(6px);
  border: 1px solid rgba(255,255,255,0.16);
  border-radius: var(--radius);
  padding: 36px;
}
.about-text p {
  font-size: 17px;
  line-height: 1.75;
  color: rgba(255,255,255,0.75);
}
.about-text p:first-of-type {
  font-size: 20px;
  color: #fff;
  font-weight: 500;
}

/* ---------- Contact ---------- */
.contact {
  position: relative;
  overflow: hidden;
  background: var(--color-graphite-dark);
  color: #fff;
}
.contact .section-title { color: #fff; }
.contact .section-intro { color: rgba(255,255,255,0.7); }
.contact .section-index { color: rgba(255,255,255,0.28); }
.contact-media {
  background: url('img/about.webp') center 30% / cover no-repeat;
  filter: grayscale(0.4) contrast(1.1) brightness(0.65) saturate(0.9);
}
.contact::before {
  content: "";
  position: absolute;
  inset: 0;
  background:
    linear-gradient(100deg, rgba(15,16,17,0.94) 0%, rgba(15,16,17,0.86) 45%, rgba(15,16,17,0.6) 100%);
}
.contact .container { position: relative; z-index: 1; }
.contact-layout {
  display: grid;
  grid-template-columns: 1fr 1.2fr;
  gap: 48px;
}
.contact-info {
  display: flex;
  flex-direction: column;
  gap: 22px;
}
.contact-card {
  background: rgba(15,16,17,0.72);
  backdrop-filter: blur(6px);
  -webkit-backdrop-filter: blur(6px);
  border: 1px solid rgba(255,255,255,0.16);
  border-radius: var(--radius);
  padding: 22px 24px;
  transition: border-color 0.25s ease, background 0.25s ease;
}
.contact-card:has(a):hover {
  border-color: var(--color-accent);
  background: rgba(15,16,17,0.85);
}
.contact-card .label {
  font-family: var(--font-head);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: rgba(255,255,255,0.55);
  margin-bottom: 6px;
}
.contact-card a {
  font-size: 21px;
  font-weight: 600;
  text-decoration: none;
  color: #fff;
  font-variant-numeric: tabular-nums;
}
.contact-card a:hover { color: var(--color-accent); }

form.contact-form {
  background: rgba(15,16,17,0.72);
  backdrop-filter: blur(6px);
  -webkit-backdrop-filter: blur(6px);
  border: 1px solid rgba(255,255,255,0.16);
  border-radius: var(--radius);
  padding: 38px;
  box-shadow: 0 20px 50px rgba(0,0,0,0.35);
}
.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
  margin-bottom: 16px;
}
.field { display: flex; flex-direction: column; gap: 6px; margin-bottom: 16px; }
.field label {
  font-family: var(--font-head);
  font-size: 13.5px;
  font-weight: 600;
  letter-spacing: 0.03em;
  color: rgba(255,255,255,0.7);
}
.field input,
.field select,
.field textarea {
  font: inherit;
  padding: 12px 14px;
  border: 1px solid rgba(255,255,255,0.3);
  border-radius: var(--radius);
  background: rgba(255,255,255,0.12);
  color: #fff;
  transition: border-color 0.2s ease, box-shadow 0.2s ease, background 0.2s ease;
}
.field input::placeholder,
.field textarea::placeholder { color: rgba(255,255,255,0.35); }
.field select {
  appearance: none;
  -webkit-appearance: none;
  padding-right: 40px;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 12 8'%3E%3Cpath d='M1 1l5 5 5-5' fill='none' stroke='%23ffffff' stroke-width='1.6'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 14px center;
  background-size: 12px 8px;
}
.field select option { color: var(--color-ink); background: var(--color-surface); }
.field input:focus,
.field select:focus,
.field textarea:focus {
  outline: none;
  border-color: var(--color-accent);
  background: rgba(255,255,255,0.18);
  box-shadow: 0 0 0 3px var(--color-accent-glow);
}
.field textarea { resize: vertical; min-height: 120px; }
.form-note {
  font-size: 13.5px;
  color: rgba(255,255,255,0.5);
  margin-top: 14px;
}

/* ---------- Footer ---------- */
.site-footer {
  background: var(--color-graphite-dark);
  color: rgba(255,255,255,0.6);
  padding: 56px 0 28px;
  font-size: 14px;
  position: relative;
}
.site-footer::before {
  content: "";
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 1px;
  background: linear-gradient(90deg, var(--color-accent), transparent 60%);
}
.footer-grid {
  display: grid;
  grid-template-columns: 1.2fr 1fr 1fr;
  gap: 32px;
  padding-bottom: 36px;
  border-bottom: 1px solid rgba(255,255,255,0.1);
}
.footer-brand { display: flex; flex-direction: column; align-items: flex-start; gap: 12px; }
.footer-brand img { height: 34px; width: auto; filter: brightness(0) invert(1); }
.footer-brand p {
  margin: 0;
  color: rgba(255,255,255,0.55);
  font-size: 14.5px;
  line-height: 1.6;
  max-width: 280px;
}
.footer-col h4 {
  font-family: var(--font-head);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: rgba(255,255,255,0.85);
  margin: 0 0 14px;
}
.footer-col a {
  display: block;
  color: rgba(255,255,255,0.6);
  text-decoration: none;
  margin-bottom: 8px;
  transition: color 0.2s ease;
}
.footer-col a:hover { color: var(--color-accent); }
.footer-bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 12px;
  padding-top: 22px;
  font-size: 13.5px;
  color: rgba(255,255,255,0.45);
}
.footer-bottom .brand-mini {
  font-family: var(--font-head);
  font-weight: 700;
  letter-spacing: 0.08em;
  color: rgba(255,255,255,0.7);
}

.back-to-top {
  position: fixed;
  right: 24px;
  bottom: 24px;
  z-index: 90;
  width: 46px; height: 46px;
  border-radius: 50%;
  border: none;
  background: var(--color-graphite-dark);
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  box-shadow: var(--shadow-lift);
  opacity: 0;
  transform: translateY(12px);
  pointer-events: none;
  transition: opacity 0.3s var(--ease), transform 0.3s var(--ease), background 0.25s ease;
}
.back-to-top.is-visible { opacity: 1; transform: none; pointer-events: auto; }
.back-to-top:hover { background: var(--color-accent); }
.back-to-top svg { width: 18px; height: 18px; }

/* ---------- reveal-on-scroll ---------- */
.reveal {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.7s var(--ease), transform 0.7s var(--ease);
}
.reveal.is-visible {
  opacity: 1;
  transform: none;
}
.usp-grid .usp-card:nth-child(1) { transition-delay: 0s; }
.usp-grid .usp-card:nth-child(2) { transition-delay: 0.08s; }
.usp-grid .usp-card:nth-child(3) { transition-delay: 0.16s; }

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .hero-kicker, .hero h1, .hero p, .hero-actions { animation: none; opacity: 1; transform: none; }
  .hero-scroll-cue svg { animation: none; }
  .reveal { transition: none; opacity: 1; transform: none; }
}

/* ---------- stats strip ---------- */
.stats {
  background:
    radial-gradient(800px 360px at 12% 0%, rgba(226,85,31,0.12), transparent 60%),
    var(--color-graphite-dark);
  color: #fff;
  padding: 52px 0;
}
.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}
.stat-tile { text-align: left; border-left: 2px solid rgba(255,255,255,0.14); padding-left: 18px; }
.stat-num {
  display: flex;
  align-items: baseline;
  gap: 2px;
  font-family: var(--font-head);
  font-weight: 700;
  font-size: clamp(30px, 3.4vw, 42px);
  color: var(--color-accent);
  font-variant-numeric: tabular-nums;
  line-height: 1;
}
.stat-label {
  margin-top: 8px;
  font-size: 13.5px;
  letter-spacing: 0.03em;
  color: rgba(255,255,255,0.68);
  line-height: 1.4;
}

/* ---------- coverage map ---------- */
.coverage { background: var(--color-surface); }
.coverage-layout {
  display: grid;
  grid-template-columns: 1fr 1.15fr;
  gap: 48px;
  align-items: center;
}
.coverage-map-wrap {
  position: relative;
  background: var(--color-bg);
  border: 1px solid var(--color-line);
  border-radius: var(--radius);
  padding: 20px;
}
.coverage-map-wrap svg { width: 100%; height: auto; display: block; }
.map-region {
  fill: var(--color-line);
  stroke: var(--color-surface);
  stroke-width: 2;
  transition: fill 0.25s ease;
}
.map-region.is-active { fill: #ded9d0; }
.map-pin { cursor: pointer; outline: none; }
.map-pin:focus { outline: none; }
.map-pin:focus-visible circle.dot,
.map-pin:focus circle.dot { stroke: var(--color-accent); stroke-width: 3; }
.map-pin circle.pulse {
  fill: var(--color-accent);
  opacity: 0.35;
  transform-origin: center;
  animation: pin-pulse 2.4s ease-out infinite;
}
.map-pin circle.dot { fill: var(--color-accent); stroke: #fff; stroke-width: 2; }
.map-pin:hover circle.dot { fill: var(--color-accent-dark); }
@keyframes pin-pulse {
  0% { transform: scale(0.6); opacity: 0.45; }
  100% { transform: scale(2.6); opacity: 0; }
}
.map-tooltip {
  position: absolute;
  min-width: 180px;
  background: var(--color-graphite-dark);
  color: #fff;
  border-radius: var(--radius);
  padding: 12px 14px;
  font-size: 13.5px;
  line-height: 1.45;
  pointer-events: none;
  opacity: 0;
  transform: translate(-50%, calc(-100% - 14px));
  transition: opacity 0.15s ease;
  z-index: 5;
}
.map-tooltip.is-visible { opacity: 1; }
.map-tooltip strong { display: block; font-family: var(--font-head); font-size: 14px; margin-bottom: 2px; }
.map-tooltip span { color: rgba(255,255,255,0.65); }
.coverage-legend { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 18px; }
.coverage-legend-item {
  display: inline-flex; align-items: center; gap: 6px;
  font-family: var(--font-head); font-size: 12.5px; font-weight: 600;
  color: var(--color-ink-soft);
}
.coverage-legend-item::before { content: ""; width: 8px; height: 8px; border-radius: 50%; background: var(--color-accent); }

/* ---------- before/after compare ---------- */
.compare {
  position: relative;
  aspect-ratio: 4 / 3;
  border-radius: var(--radius);
  overflow: hidden;
  user-select: none;
}
.compare img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  filter: grayscale(0.5) contrast(1.1) brightness(0.95) saturate(0.9);
}
.compare-after { clip-path: inset(0 0 0 50%); }
.compare-divider {
  position: absolute;
  top: 0; bottom: 0;
  left: 50%;
  width: 3px;
  background: #fff;
  box-shadow: 0 0 0 1px rgba(0,0,0,0.15);
  transform: translateX(-50%);
  pointer-events: none;
}
.compare-divider::after {
  content: "";
  position: absolute;
  top: 50%; left: 50%;
  width: 42px; height: 42px;
  border-radius: 50%;
  background: #fff;
  transform: translate(-50%, -50%);
  box-shadow: var(--shadow-card);
}
.compare-grip {
  position: absolute;
  top: 50%; left: 50%;
  width: 16px; height: 16px;
  transform: translate(-50%, -50%);
  pointer-events: none;
  color: var(--color-graphite-dark);
}
.compare-range {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  margin: 0;
  opacity: 0;
  cursor: ew-resize;
  -webkit-appearance: none;
  appearance: none;
}
.compare-label {
  position: absolute;
  top: 14px;
  padding: 6px 12px;
  font-family: var(--font-head);
  font-weight: 600;
  font-size: 12px;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  background: rgba(17,18,19,0.6);
  color: #fff;
  border-radius: 999px;
  pointer-events: none;
}
.compare-label.before { left: 14px; }
.compare-label.after { right: 14px; }

/* ---------- lightbox ---------- */
[data-lightbox] { cursor: zoom-in; }
.lightbox-overlay {
  position: fixed;
  inset: 0;
  z-index: 300;
  background: rgba(12,13,14,0.94);
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.25s ease;
}
.lightbox-overlay.is-open { opacity: 1; pointer-events: auto; }
.lightbox-figure { max-width: 88vw; max-height: 82vh; display: flex; flex-direction: column; align-items: center; gap: 14px; }
.lightbox-figure img {
  max-width: 88vw;
  max-height: 74vh;
  object-fit: contain;
  border-radius: var(--radius);
  box-shadow: 0 30px 60px rgba(0,0,0,0.4);
}
.lightbox-caption { color: rgba(255,255,255,0.7); font-size: 14px; text-align: center; }
.lightbox-btn {
  position: fixed;
  width: 46px; height: 46px;
  border-radius: 50%;
  border: none;
  background: rgba(255,255,255,0.1);
  color: #fff;
  display: flex; align-items: center; justify-content: center;
  cursor: pointer;
  transition: background 0.2s ease;
}
.lightbox-btn:hover { background: var(--color-accent); }
.lightbox-close { top: 24px; right: 24px; }
.lightbox-prev { left: 24px; top: 50%; transform: translateY(-50%); }
.lightbox-next { right: 24px; top: 50%; transform: translateY(-50%); }
.lightbox-btn svg { width: 20px; height: 20px; }
@media (max-width: 700px) {
  .lightbox-prev, .lightbox-next { width: 40px; height: 40px; }
}

/* ---------- quick contact ---------- */
.quick-contact {
  position: fixed;
  left: 24px;
  bottom: 24px;
  z-index: 90;
  display: flex;
  flex-direction: column-reverse;
  align-items: flex-start;
  gap: 12px;
}
.quick-contact-toggle {
  width: 54px; height: 54px;
  border-radius: 50%;
  border: none;
  background: var(--color-accent);
  color: #fff;
  display: flex; align-items: center; justify-content: center;
  cursor: pointer;
  box-shadow: var(--shadow-lift);
  transition: background 0.2s ease, transform 0.3s var(--ease);
}
.quick-contact-toggle:hover { background: var(--color-accent-dark); }
.quick-contact-toggle svg { width: 22px; height: 22px; transition: transform 0.3s var(--ease); }
.quick-contact.is-open .quick-contact-toggle svg { transform: rotate(135deg); }
.quick-contact-options {
  display: flex;
  flex-direction: column;
  gap: 10px;
  opacity: 0;
  transform: translateY(10px);
  pointer-events: none;
  transition: opacity 0.25s var(--ease), transform 0.25s var(--ease);
}
.quick-contact.is-open .quick-contact-options { opacity: 1; transform: none; pointer-events: auto; }
.quick-contact-options a {
  width: 48px; height: 48px;
  border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  text-decoration: none;
  background: #fff;
  color: var(--color-graphite-dark);
  box-shadow: var(--shadow-card);
  transition: transform 0.2s ease;
}
.quick-contact-options a:hover { transform: scale(1.06); }
.quick-contact-options a.whatsapp { background: #25d366; color: #fff; }
.quick-contact-options a svg { width: 22px; height: 22px; }

/* ---------- responsive ---------- */
@media (max-width: 900px) {
  .process-grid { grid-template-columns: 1fr 1fr; }
  .usp-grid { grid-template-columns: 1fr; }
  .usp-grid .usp-card:first-child { grid-column: span 1; }
  .offer-layout { grid-template-columns: 1fr; }
  .offer-gallery { grid-template-rows: repeat(2, 140px); }
  .about-layout { grid-template-columns: 1fr; }
  .about-photo { max-width: 380px; }
  .contact-layout { grid-template-columns: 1fr; }
  .stats-grid { grid-template-columns: 1fr 1fr; row-gap: 28px; }
  .coverage-layout { grid-template-columns: 1fr; }
  .project-card { grid-template-columns: 1fr; gap: 24px; }
  .project-card:nth-child(even) .project-media { order: 0; }
  .cta-band-inner { flex-direction: column; align-items: flex-start; padding: 36px; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .footer-brand { grid-column: span 2; }
}

@media (max-width: 760px) {
  .main-nav, .header-actions .btn-ghost { display: none; }
  .nav-toggle { display: block; }
  .header-actions { gap: 10px; }
  .site-header.is-open .main-nav {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    gap: 18px;
    position: absolute;
    top: 100%; left: 0; right: 0;
    background: rgba(255,255,255,0.98);
    backdrop-filter: blur(10px);
    padding: 26px 24px;
    box-shadow: 0 16px 30px rgba(23,24,26,0.14);
  }
  .site-header.is-open .main-nav a { color: var(--color-graphite); }
  .site-header.is-open .main-nav a::after { background: var(--color-accent); }
  .form-row { grid-template-columns: 1fr; }
  .process-grid { grid-template-columns: 1fr; }
  .hero-content { padding-top: 130px; padding-bottom: 80px; }
  .page-header { padding-top: 130px; }
  .project-media { grid-template-columns: 1fr; }
  .stats-grid { grid-template-columns: 1fr 1fr; }
  .stat-tile { padding-left: 14px; }
  .quick-contact { left: 16px; bottom: 16px; }
  .back-to-top ~ .quick-contact { bottom: 16px; }
  .hero-scroll-cue { display: none; }
  .footer-grid { grid-template-columns: 1fr; }
  .footer-brand { grid-column: span 1; }
  .back-to-top { right: 16px; bottom: 16px; }
}