/* =========================================================
   AYDEMİR İNŞAAT — Kurumsal Stil Dosyası
   Antrasit / Füme zemin · Gümüş / Metalik vurgular
   ========================================================= */

:root {
  --anthracite-900: #1C1E21;
  --anthracite-800: #25282C;
  --anthracite-700: #2E3237;
  --anthracite-600: #3A3F45;

  --silver-300: #D1D5DB;
  --silver-200: #E5E7EB;
  --silver-500: #9CA3AF;
  --silver-600: #6B7280;

  --offwhite: #F4F4F2;
  --offwhite-2: #ECEDEE;
  --ink: #1C1E21;
  --ink-soft: #4B5058;

  --line-dark: rgba(209, 213, 219, 0.12);
  --line-dark-strong: rgba(209, 213, 219, 0.28);
  --line-light: rgba(28, 30, 33, 0.12);

  --silver-gradient: linear-gradient(120deg, #F3F4F6 0%, #D1D5DB 28%, #A3A8B0 50%, #E5E7EB 72%, #BFC3C9 100%);

  --font-display: "Montserrat", "Inter", system-ui, sans-serif;
  --font-body: "Inter", system-ui, -apple-system, "Segoe UI", sans-serif;

  --container: 1380px;
  --header-h: 84px;
  --radius: 2px;
  --ease: cubic-bezier(0.22, 0.61, 0.36, 1);
}

/* ---------- Reset ---------- */
*,
*::before,
*::after { box-sizing: border-box; margin: 0; padding: 0; }

html { scroll-behavior: smooth; scroll-padding-top: 70px; -webkit-text-size-adjust: 100%; }

body {
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.7;
  color: var(--silver-300);
  background: var(--anthracite-900);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}

body.no-scroll { overflow: hidden; }

img { display: block; max-width: 100%; height: auto; }
a { color: inherit; text-decoration: none; }
ul, ol { list-style: none; }
button { font: inherit; color: inherit; background: none; border: 0; cursor: pointer; }
address { font-style: normal; }

:focus-visible { outline: 1px solid var(--silver-300); outline-offset: 4px; }

.container { width: 100%; max-width: var(--container); margin-inline: auto; padding-inline: 24px; }

.silver-text {
  background: var(--silver-gradient);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

/* ---------- Typography helpers ---------- */
.eyebrow {
  font-family: var(--font-display);
  font-size: 0.72rem;
  font-weight: 500;
  letter-spacing: 0.32em;
  text-transform: uppercase;
  color: var(--silver-500);
  margin-bottom: 18px;
}
.eyebrow-dark { color: var(--silver-600); }

.section-title {
  font-family: var(--font-display);
  font-weight: 500;
  font-size: clamp(1.7rem, 3.2vw, 2.6rem);
  line-height: 1.2;
  letter-spacing: 0.02em;
  color: var(--silver-200);
}
.section-title-dark { color: var(--ink); }

.title-rule {
  display: block;
  width: 64px;
  height: 1px;
  margin: 24px 0;
  background: var(--silver-gradient);
}
.title-rule-dark { background: linear-gradient(90deg, var(--ink), var(--silver-500)); }

.section-head { max-width: 760px; margin: 0 auto 56px; text-align: center; }
.section-head .title-rule { margin-inline: auto; }
.section-lead { color: var(--silver-500); font-size: 1.02rem; }

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  padding: 16px 34px;
  font-family: var(--font-display);
  font-size: 0.78rem;
  font-weight: 600;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  border: 1px solid transparent;
  border-radius: var(--radius);
  transition: background-color 0.35s var(--ease), color 0.35s var(--ease), border-color 0.35s var(--ease), transform 0.35s var(--ease), box-shadow 0.35s var(--ease);
  position: relative;
  overflow: hidden;
  white-space: nowrap;
}
.btn-sm { padding: 13px 24px; font-size: 0.72rem; }
.btn-block { width: 100%; }

.btn-silver {
  background: var(--silver-gradient);
  background-size: 200% 100%;
  background-position: 0% 0;
  color: var(--anthracite-900);
}
.btn-silver:hover {
  background-position: 100% 0;
  transform: translateY(-2px);
  box-shadow: 0 12px 30px -12px rgba(209, 213, 219, 0.45);
}

.btn-outline { border-color: var(--line-dark-strong); color: var(--silver-200); }
.btn-outline:hover { border-color: var(--silver-300); background: rgba(229, 231, 235, 0.06); transform: translateY(-2px); }

.btn-dark { background: var(--anthracite-900); color: var(--silver-200); }
.btn-dark:hover { background: var(--anthracite-700); transform: translateY(-2px); }

/* =========================================================
   HEADER
   ========================================================= */
.site-header {
  position: fixed;
  inset: 0 0 auto 0;
  z-index: 100;
  height: var(--header-h);
  display: flex;
  align-items: center;
  border-bottom: 1px solid transparent;
  transition: background-color 0.4s var(--ease), border-color 0.4s var(--ease), height 0.4s var(--ease), backdrop-filter 0.4s;
}
.site-header.scrolled {
  --header-h: 70px;
  background: rgba(28, 30, 33, 0.92);
  border-bottom-color: var(--line-dark);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
}

.site-header.menu-open { background: transparent; border-bottom-color: transparent; backdrop-filter: none; -webkit-backdrop-filter: none; }

.nav-wrap { display: flex; align-items: center; gap: 32px; }

.logo {
  display: inline-flex;
  align-items: center;
  gap: 14px;
  font-family: var(--font-display);
  text-transform: uppercase;
  white-space: nowrap;
  flex-shrink: 0;
}
.logo-strong,
.logo-light {
  background: var(--silver-gradient);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.logo-strong { font-size: 1.12rem; font-weight: 600; letter-spacing: 0.34em; }
.logo-light { font-size: 1.12rem; font-weight: 300; letter-spacing: 0.34em; }
.logo-rule { width: 1px; height: 18px; background: var(--line-dark-strong); }

.main-nav { margin-left: auto; }
.main-nav ul { display: flex; align-items: center; gap: 28px; }

.nav-link {
  position: relative;
  font-family: var(--font-display);
  font-size: 0.74rem;
  font-weight: 500;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--silver-500);
  padding: 8px 0;
  white-space: nowrap;
  transition: color 0.3s var(--ease);
}
.nav-link::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: 0;
  width: 100%;
  height: 1px;
  background: var(--silver-300);
  transform: scaleX(0);
  transform-origin: right;
  transition: transform 0.4s var(--ease);
}
.nav-link:hover,
.nav-link.active { color: var(--silver-200); }
.nav-link:hover::after,
.nav-link.active::after { transform: scaleX(1); transform-origin: left; }

.btn-call {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 11px 20px;
  border: 1px solid var(--line-dark-strong);
  font-family: var(--font-display);
  font-size: 0.8rem;
  font-weight: 500;
  letter-spacing: 0.1em;
  color: var(--silver-200);
  transition: all 0.35s var(--ease);
  white-space: nowrap;
}
.btn-call svg { width: 15px; height: 15px; fill: var(--silver-300); transition: fill 0.35s; }
.btn-call:hover { background: var(--silver-200); border-color: var(--silver-200); color: var(--anthracite-900); }
.btn-call:hover svg { fill: var(--anthracite-900); }
.btn-call--mobile { display: none; }

.header-actions { display: flex; align-items: center; gap: 10px; flex-shrink: 0; }
.btn-icon { width: 44px; height: 44px; padding: 0; justify-content: center; }
.btn-wa svg { width: 18px; height: 18px; fill: #25D366; }
.btn-wa:hover svg { fill: #128C7E; }
.mobile-actions { display: none; }

.nav-toggle { display: none; width: 44px; height: 44px; position: relative; margin-left: auto; }
.nav-toggle span {
  position: absolute;
  left: 10px;
  right: 10px;
  height: 1px;
  background: var(--silver-200);
  transition: transform 0.35s var(--ease), opacity 0.25s, top 0.35s var(--ease);
}
.nav-toggle span:nth-child(1) { top: 15px; }
.nav-toggle span:nth-child(2) { top: 22px; }
.nav-toggle span:nth-child(3) { top: 29px; }
.nav-toggle[aria-expanded="true"] span:nth-child(1) { top: 22px; transform: rotate(45deg); }
.nav-toggle[aria-expanded="true"] span:nth-child(2) { opacity: 0; }
.nav-toggle[aria-expanded="true"] span:nth-child(3) { top: 22px; transform: rotate(-45deg); }

/* =========================================================
   HERO
   ========================================================= */
.hero {
  position: relative;
  min-height: 100vh;
  min-height: 100svh;
  display: flex;
  flex-direction: column;
  justify-content: center;
  overflow: hidden;
  isolation: isolate;
}
.hero { background: var(--anthracite-900); }
.hero-bg {
  position: absolute;
  top: 0;
  right: 0;
  bottom: 0;
  width: min(52%, 880px);
  z-index: -2;
  background: url("images/projeler/proje-1-1.jpg") center 35% / cover no-repeat;
  filter: grayscale(0.2) contrast(1.04);
  -webkit-mask-image: linear-gradient(90deg, transparent 0%, #000 45%);
  mask-image: linear-gradient(90deg, transparent 0%, #000 45%);
  transform: scale(1.06);
  transform-origin: right center;
  animation: heroZoom 18s var(--ease) forwards;
}
@keyframes heroZoom { to { transform: scale(1); } }

.hero-overlay {
  position: absolute;
  inset: 0;
  z-index: -1;
  background:
    linear-gradient(90deg, rgba(28, 30, 33, 0.95) 0%, rgba(28, 30, 33, 0.88) 45%, rgba(28, 30, 33, 0.45) 62%, rgba(28, 30, 33, 0.05) 88%),
    linear-gradient(180deg, rgba(28, 30, 33, 0.5) 0%, rgba(28, 30, 33, 0) 28%, rgba(28, 30, 33, 0) 65%, rgba(28, 30, 33, 0.9) 100%);
}

.hero-content { padding-top: calc(var(--header-h) + 40px); padding-bottom: 180px; }
.hero-title {
  font-family: var(--font-display);
  font-weight: 400;
  font-size: clamp(2.2rem, 5.6vw, 4.4rem);
  line-height: 1.12;
  letter-spacing: 0.01em;
  color: var(--silver-200);
  max-width: 900px;
}
.hero-title .silver-text { font-weight: 600; }
.hero-title,
.hero-lead { text-shadow: 0 2px 24px rgba(0, 0, 0, 0.45); }
.hero-title .silver-text { text-shadow: none; filter: drop-shadow(0 2px 18px rgba(0, 0, 0, 0.45)); }
.hero-signature {
  position: relative;
  display: inline-flex;
  align-items: center;
  gap: clamp(18px, 3vw, 40px);
  margin-top: 34px;
  padding: 18px clamp(22px, 3vw, 38px);
  background: linear-gradient(135deg, rgba(37, 40, 44, 0.78) 0%, rgba(28, 30, 33, 0.62) 100%);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  box-shadow: 0 24px 50px -24px rgba(0, 0, 0, 0.7);
}
.hero-signature::before {
  content: "";
  position: absolute;
  inset: 0;
  padding: 1px;
  background: linear-gradient(120deg, #F3F4F6 0%, #9CA3AF 28%, #E5E7EB 50%, #6B7280 76%, #D1D5DB 100%);
  -webkit-mask: linear-gradient(#000 0 0) content-box, linear-gradient(#000 0 0);
  -webkit-mask-composite: xor;
  mask: linear-gradient(#000 0 0) content-box, linear-gradient(#000 0 0);
  mask-composite: exclude;
  pointer-events: none;
}
.hs-item { display: flex; flex-direction: column; gap: 6px; }
.hs-role {
  font-family: var(--font-display);
  font-size: 0.64rem;
  font-weight: 500;
  letter-spacing: 0.34em;
  text-transform: uppercase;
  color: var(--silver-500);
}
.hs-name {
  font-family: var(--font-display);
  font-size: clamp(0.92rem, 1.35vw, 1.12rem);
  font-weight: 600;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  white-space: nowrap;
  background: var(--silver-gradient);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.hs-divider { align-self: stretch; width: 1px; background: linear-gradient(180deg, transparent, rgba(229, 231, 235, 0.6), transparent); }

.hero-lead {
  max-width: 620px;
  margin-top: 28px;
  font-size: clamp(1rem, 1.4vw, 1.12rem);
  font-weight: 300;
  color: var(--silver-300);
  opacity: 0.88;
}
.hero-actions { display: flex; flex-wrap: wrap; gap: 16px; margin-top: 44px; }

.hero-pillars {
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  border-top: 1px solid var(--line-dark);
  background: rgba(28, 30, 33, 0.55);
  backdrop-filter: blur(6px);
  -webkit-backdrop-filter: blur(6px);
}
.pillars-grid { display: grid; grid-template-columns: repeat(4, 1fr); }
.pillar {
  display: flex;
  align-items: center;
  gap: 18px;
  padding: 26px 24px;
  border-left: 1px solid var(--line-dark);
}
.pillar:first-child { border-left: 0; padding-left: 0; }
.pillar-num { font-family: var(--font-display); font-size: 0.72rem; letter-spacing: 0.2em; color: var(--silver-600); }
.pillar-big {
  font-family: var(--font-display);
  font-size: 2rem;
  font-weight: 600;
  line-height: 1;
  letter-spacing: 0.02em;
  background: var(--silver-gradient);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.pillar-text {
  font-family: var(--font-display);
  font-size: 0.78rem;
  font-weight: 500;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  line-height: 1.5;
  color: var(--silver-200);
}

.scroll-cue {
  position: absolute;
  right: 40px;
  bottom: 120px;
  width: 1px;
  height: 70px;
  background: var(--line-dark-strong);
  overflow: hidden;
}
.scroll-cue span {
  position: absolute;
  left: 0;
  top: -30px;
  width: 1px;
  height: 30px;
  background: var(--silver-200);
  animation: scrollCue 2.2s var(--ease) infinite;
}
@keyframes scrollCue { to { top: 100%; } }

/* =========================================================
   SECTIONS
   ========================================================= */
.section { padding: clamp(80px, 11vw, 140px) 0; position: relative; }
.section-dark { background: var(--anthracite-900); }
.section-dark-alt { background: var(--anthracite-800); }
.section-light { background: var(--offwhite); color: var(--ink-soft); }
.section-light-alt { background: linear-gradient(180deg, var(--offwhite-2) 0%, var(--offwhite) 100%); color: var(--ink-soft); }

/* ---------- Projects (Gallery) ---------- */
.project-gallery { columns: 4; column-gap: 20px; }

.gallery-item {
  position: relative;
  display: block;
  margin: 0 0 20px;
  break-inside: avoid;
  overflow: hidden;
  cursor: zoom-in;
  background: var(--anthracite-800);
  border: 1px solid var(--line-dark);
  opacity: 0;
  transform: translateY(24px);
  animation: cardIn 0.7s var(--ease) forwards;
  transition: border-color 0.45s var(--ease), box-shadow 0.45s var(--ease);
}
@keyframes cardIn { to { opacity: 1; transform: translateY(0); } }

.gallery-item img {
  display: block;
  width: 100%;
  height: auto;
  filter: brightness(0.92) saturate(0.95);
  transition: transform 1s var(--ease), filter 0.6s var(--ease);
}

.gallery-item::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: 1;
  background: linear-gradient(180deg, rgba(28, 30, 33, 0.05) 0%, rgba(28, 30, 33, 0.6) 100%);
  opacity: 0;
  transition: opacity 0.5s var(--ease);
  pointer-events: none;
}
.gallery-item::after {
  content: "";
  position: absolute;
  inset: 14px;
  z-index: 2;
  border: 1px solid rgba(229, 231, 235, 0.55);
  opacity: 0;
  transform: scale(1.04);
  transition: opacity 0.5s var(--ease), transform 0.6s var(--ease);
  pointer-events: none;
}

.gallery-zoom {
  position: absolute;
  top: 50%;
  left: 50%;
  z-index: 3;
  display: grid;
  place-items: center;
  width: 56px;
  height: 56px;
  border: 1px solid rgba(229, 231, 235, 0.7);
  background: rgba(28, 30, 33, 0.45);
  backdrop-filter: blur(6px);
  -webkit-backdrop-filter: blur(6px);
  opacity: 0;
  transform: translate(-50%, -50%) scale(0.8);
  transition: opacity 0.45s var(--ease), transform 0.45s var(--ease);
  pointer-events: none;
}
.gallery-zoom svg { width: 22px; height: 22px; fill: none; stroke: var(--silver-200); stroke-width: 1.5; }

.gallery-item:hover,
.gallery-item:focus-visible { border-color: var(--line-dark-strong); box-shadow: 0 30px 60px -30px rgba(0, 0, 0, 0.85); }
.gallery-item:hover img,
.gallery-item:focus-visible img { transform: scale(1.06); filter: brightness(1) saturate(1.05); }
.gallery-item:hover::before,
.gallery-item:focus-visible::before,
.gallery-item:hover::after,
.gallery-item:focus-visible::after,
.gallery-item:hover .gallery-zoom,
.gallery-item:focus-visible .gallery-zoom { opacity: 1; }
.gallery-item:hover::after,
.gallery-item:focus-visible::after { transform: scale(1); }
.gallery-item:hover .gallery-zoom,
.gallery-item:focus-visible .gallery-zoom { transform: translate(-50%, -50%) scale(1); }
.gallery-item:focus-visible { outline-offset: 2px; }

.projects-cta {
  margin-top: 64px;
  padding-top: 40px;
  border-top: 1px solid var(--line-dark);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  flex-wrap: wrap;
}
.projects-cta p { color: var(--silver-500); }

/* ---------- About ---------- */
.about-grid { display: grid; grid-template-columns: 1fr 1.1fr; gap: clamp(48px, 7vw, 100px); align-items: center; }
.about-media { position: relative; padding: 0 0 40px 40px; }
.about-media::before {
  content: "";
  position: absolute;
  left: 0;
  bottom: 0;
  width: 70%;
  height: 70%;
  border: 1px solid rgba(28, 30, 33, 0.25);
}
.about-frame { position: relative; aspect-ratio: 3 / 4; overflow: hidden; }
.about-frame img { width: 100%; height: 100%; object-fit: cover; filter: grayscale(0.25) contrast(1.03); }
.about-badge {
  position: absolute;
  right: -20px;
  bottom: 70px;
  display: flex;
  flex-direction: column;
  padding: 22px 30px;
  background: var(--anthracite-900);
  border-left: 2px solid var(--silver-300);
  box-shadow: 0 24px 50px -20px rgba(0, 0, 0, 0.5);
}
.about-badge-num {
  font-family: var(--font-display);
  font-size: 2.6rem;
  font-weight: 600;
  line-height: 1;
  background: var(--silver-gradient);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.about-badge-sub { font-size: 0.7rem; line-height: 1.6; letter-spacing: 0.24em; text-transform: uppercase; color: var(--silver-300); margin-top: 10px; }

.about-text .section-title { font-size: clamp(1.4rem, 2.5vw, 2.05rem); letter-spacing: 0.06em; }
.about-lead { font-size: 1.06rem; line-height: 1.85; color: var(--ink-soft); }

.about-team {
  margin-top: 40px;
  padding-top: 28px;
  border-top: 1px solid var(--line-light);
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
}
.team-member { display: flex; flex-direction: column; padding-left: 18px; border-left: 2px solid var(--silver-500); }
.sig-name { font-family: var(--font-display); font-size: 1.2rem; font-weight: 400; letter-spacing: 0.2em; text-transform: uppercase; color: var(--ink); }
.sig-role { font-size: 0.75rem; letter-spacing: 0.24em; text-transform: uppercase; color: var(--silver-600); margin-top: 4px; }

/* ---------- Services ---------- */
.service-grid { display: grid; grid-template-columns: repeat(4, 1fr); border: 1px solid var(--line-dark); }
.service-card {
  position: relative;
  padding: 48px 34px 56px;
  border-left: 1px solid var(--line-dark);
  background: transparent;
  transition: background-color 0.5s var(--ease);
  overflow: hidden;
}
.service-card:first-child { border-left: 0; }
.service-card:hover { background: var(--anthracite-700); }
.service-num {
  display: block;
  font-family: var(--font-display);
  font-size: 2.6rem;
  font-weight: 200;
  line-height: 1;
  letter-spacing: 0.04em;
  background: var(--silver-gradient);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  opacity: 0.75;
  margin-bottom: 34px;
}
.service-card h3 {
  font-family: var(--font-display);
  font-size: 1rem;
  font-weight: 600;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--silver-200);
  margin-bottom: 16px;
  line-height: 1.45;
}
.service-card p { font-size: 0.94rem; color: var(--silver-500); }
.service-link {
  display: inline-flex;
  gap: 8px;
  margin-top: 22px;
  font-family: var(--font-display);
  font-size: 0.7rem;
  font-weight: 600;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--silver-200);
  border-bottom: 1px solid var(--line-dark-strong);
  padding-bottom: 4px;
  transition: border-color 0.3s;
}
.service-link:hover { border-color: var(--silver-200); }
.service-line {
  position: absolute;
  left: 0;
  bottom: 0;
  width: 100%;
  height: 2px;
  background: var(--silver-gradient);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.6s var(--ease);
}
.service-card:hover .service-line { transform: scaleX(1); }
.service-card--featured { background: rgba(229, 231, 235, 0.03); }

/* ---------- Urban Transformation ---------- */
.urban-grid { display: grid; grid-template-columns: 1fr 1fr; gap: clamp(48px, 7vw, 100px); align-items: start; }
.urban-intro .section-title { font-size: clamp(1.5rem, 2.6vw, 2.2rem); }
.urban-lead { font-size: 1.04rem; line-height: 1.85; color: var(--ink-soft); }
.urban-image { margin: 36px 0; aspect-ratio: 4 / 3; overflow: hidden; }
.urban-image img { width: 100%; height: 100%; object-fit: cover; filter: grayscale(0.35) contrast(1.03); transition: filter 0.8s var(--ease), transform 1.2s var(--ease); }
.urban-image:hover img { filter: grayscale(0); transform: scale(1.03); }

.urban-steps { position: relative; counter-reset: none; }
.urban-steps::before {
  content: "";
  position: absolute;
  left: 27px;
  top: 28px;
  bottom: 28px;
  width: 1px;
  background: var(--line-light);
}
.urban-step { position: relative; display: flex; gap: 28px; padding: 22px 0; }
.step-num {
  position: relative;
  z-index: 1;
  flex-shrink: 0;
  width: 56px;
  height: 56px;
  display: grid;
  place-items: center;
  font-family: var(--font-display);
  font-size: 0.85rem;
  font-weight: 500;
  letter-spacing: 0.08em;
  color: var(--silver-200);
  background: var(--anthracite-900);
  border: 1px solid var(--anthracite-900);
  transition: background-color 0.4s var(--ease), color 0.4s var(--ease);
}
.urban-step:hover .step-num { background: var(--offwhite); color: var(--ink); }
.urban-step h3 {
  font-family: var(--font-display);
  font-size: 0.92rem;
  font-weight: 600;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--ink);
  margin: 6px 0 6px;
}
.urban-step p { font-size: 0.95rem; color: var(--ink-soft); }

/* ---------- Contact ---------- */
.contact-grid { display: grid; grid-template-columns: 1fr 1.15fr; gap: 0; border: 1px solid var(--line-dark); }
.contact-info { padding: clamp(32px, 4.5vw, 56px); background: var(--anthracite-800); }
.contact-person { padding-bottom: 28px; margin-bottom: 28px; border-bottom: 1px solid var(--line-dark); display: flex; flex-direction: column; }
.contact-people { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 20px; margin-top: 10px; }
.contact-people > div { display: flex; flex-direction: column; }
.contact-person strong { font-family: var(--font-display); font-size: 1.12rem; font-weight: 400; letter-spacing: 0.14em; text-transform: uppercase; color: var(--silver-200); }
.contact-role { font-size: 0.78rem; letter-spacing: 0.26em; text-transform: uppercase; color: var(--silver-500); }
.contact-label { display: block; font-size: 0.68rem; font-weight: 500; letter-spacing: 0.26em; text-transform: uppercase; color: var(--silver-600); margin-bottom: 4px; }

.contact-list { display: grid; gap: 24px; }
.contact-list li { display: flex; gap: 18px; align-items: flex-start; }
.contact-icon {
  flex-shrink: 0;
  width: 42px;
  height: 42px;
  display: grid;
  place-items: center;
  border: 1px solid var(--line-dark-strong);
}
.contact-icon svg { width: 17px; height: 17px; fill: var(--silver-300); }
.contact-list a,
.contact-list address { color: var(--silver-200); font-size: 0.98rem; line-height: 1.6; transition: color 0.3s; }
.contact-list a:hover { color: #fff; }
.contact-quick { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 36px; }

.contact-form { padding: clamp(32px, 4.5vw, 56px); background: var(--anthracite-900); }
.form-title { font-family: var(--font-display); font-size: 1.4rem; font-weight: 500; letter-spacing: 0.14em; text-transform: uppercase; color: var(--silver-200); }
.form-sub { color: var(--silver-500); margin: 6px 0 32px; font-size: 0.95rem; }

.form-field { margin-bottom: 22px; }
.form-field label { display: block; font-size: 0.7rem; font-weight: 500; letter-spacing: 0.22em; text-transform: uppercase; color: var(--silver-500); margin-bottom: 10px; }
.form-field input,
.form-field textarea {
  width: 100%;
  padding: 15px 18px;
  font: inherit;
  font-size: 0.98rem;
  color: var(--silver-200);
  background: var(--anthracite-800);
  border: 1px solid var(--line-dark);
  border-radius: var(--radius);
  outline: none;
  transition: border-color 0.3s var(--ease), background-color 0.3s var(--ease);
  resize: vertical;
}
.form-field input::placeholder,
.form-field textarea::placeholder { color: var(--silver-600); }
.form-field input:focus,
.form-field textarea:focus { border-color: var(--silver-300); background: var(--anthracite-700); }
.form-field.has-error input,
.form-field.has-error textarea { border-color: #b98b8b; }
.field-error { display: block; min-height: 0; font-size: 0.78rem; color: #d4a5a5; margin-top: 6px; }
.form-note { margin-top: 16px; font-size: 0.8rem; color: var(--silver-600); text-align: center; }
.form-note.success { color: var(--silver-200); }
.form-note.error { color: #d4a5a5; }
.form-note a { color: var(--silver-200); text-decoration: underline; text-underline-offset: 3px; }
.form-hp { position: absolute; left: -9999px; width: 1px; height: 1px; overflow: hidden; }
.contact-form { position: relative; }
.contact-form button[disabled] { opacity: 0.6; cursor: wait; }

.map-wrap { position: relative; margin-top: 48px; border: 1px solid var(--line-dark); height: 440px; overflow: hidden; background: var(--anthracite-800); }
.map-wrap iframe {
  width: 100%;
  height: 100%;
  border: 0;
  filter: grayscale(1) invert(0.92) contrast(0.88) brightness(0.92);
}
.map-link {
  position: absolute;
  left: 20px;
  bottom: 20px;
  padding: 12px 20px;
  background: var(--anthracite-900);
  border: 1px solid var(--line-dark-strong);
  font-family: var(--font-display);
  font-size: 0.7rem;
  font-weight: 600;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--silver-200);
  transition: background-color 0.3s, color 0.3s;
}
.map-link:hover { background: var(--silver-200); color: var(--anthracite-900); }

/* =========================================================
   FOOTER
   ========================================================= */
.site-footer { background: #17191C; border-top: 1px solid var(--line-dark); }
.footer-top {
  display: grid;
  grid-template-columns: 1.4fr 1.6fr 1fr;
  gap: 48px;
  padding-top: 72px;
  padding-bottom: 56px;
  align-items: start;
}
.footer-brand p { margin-top: 20px; font-size: 0.92rem; color: var(--silver-600); max-width: 320px; }
.logo--footer .logo-strong,
.logo--footer .logo-light { font-size: 1rem; }
.footer-nav { display: grid; grid-template-columns: repeat(2, auto); gap: 12px 40px; justify-content: start; }
.footer-nav a,
.footer-contact a,
.footer-contact span {
  font-size: 0.8rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--silver-500);
  transition: color 0.3s;
}
.footer-contact { display: flex; flex-direction: column; gap: 12px; }
.footer-contact a { text-transform: none; letter-spacing: 0.06em; font-size: 0.9rem; }
.footer-nav a:hover,
.footer-contact a:hover { color: var(--silver-200); }
.footer-bottom { border-top: 1px solid var(--line-dark); padding: 24px 0; }
.footer-bottom p { font-size: 0.8rem; letter-spacing: 0.08em; color: var(--silver-600); text-align: center; }
.footer-bottom a { color: var(--silver-300); }
.footer-bottom a:hover { color: #fff; }
.footer-bottom .footer-credit {
  margin-top: 10px;
  font-family: var(--font-display);
  font-size: 0.66rem;
  font-weight: 400;
  letter-spacing: 0.26em;
  text-transform: uppercase;
  color: var(--silver-600);
}
.footer-credit span { color: var(--silver-300); font-weight: 500; white-space: nowrap; }

/* =========================================================
   WHATSAPP FLOAT
   ========================================================= */
.whatsapp-float {
  position: fixed;
  right: 24px;
  bottom: 24px;
  z-index: 90;
  display: inline-flex;
  align-items: center;
  gap: 0;
  height: 58px;
  padding: 0 17px;
  border-radius: 999px;
  background: var(--anthracite-800);
  border: 1px solid var(--line-dark-strong);
  color: var(--silver-200);
  box-shadow: 0 16px 40px -12px rgba(0, 0, 0, 0.7);
  transition: background-color 0.35s var(--ease), border-color 0.35s var(--ease), gap 0.35s var(--ease), transform 0.35s var(--ease);
}
.whatsapp-float svg { width: 24px; height: 24px; fill: #25D366; flex-shrink: 0; }
.whatsapp-label {
  max-width: 0;
  overflow: hidden;
  white-space: nowrap;
  font-family: var(--font-display);
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  transition: max-width 0.45s var(--ease);
}
.whatsapp-float:hover { gap: 12px; border-color: var(--silver-300); transform: translateY(-3px); }
.whatsapp-float:hover .whatsapp-label { max-width: 120px; }
.whatsapp-float::after {
  content: "";
  position: absolute;
  inset: -1px;
  border-radius: inherit;
  border: 1px solid rgba(37, 211, 102, 0.5);
  animation: waRing 2.8s var(--ease) infinite;
  pointer-events: none;
}
@keyframes waRing { 0% { opacity: 0.9; transform: scale(1); } 80%, 100% { opacity: 0; transform: scale(1.35); } }

/* =========================================================
   LIGHTBOX
   ========================================================= */
.lightbox { position: fixed; inset: 0; z-index: 200; display: flex; align-items: center; justify-content: center; }
.lightbox[hidden] { display: none; }
.lightbox-backdrop { position: absolute; inset: 0; background: rgba(18, 19, 21, 0.96); backdrop-filter: blur(6px); -webkit-backdrop-filter: blur(6px); }
.lightbox-inner {
  position: relative;
  width: min(1200px, 100%);
  height: 100%;
  display: flex;
  flex-direction: column;
  padding: 24px;
  animation: lbIn 0.45s var(--ease);
}
@keyframes lbIn { from { opacity: 0; transform: scale(0.98); } to { opacity: 1; transform: scale(1); } }

.lightbox-head { display: flex; justify-content: space-between; align-items: flex-start; gap: 20px; padding-bottom: 18px; border-bottom: 1px solid var(--line-dark); }
.lb-title { font-family: var(--font-display); font-size: 1.15rem; font-weight: 500; letter-spacing: 0.1em; text-transform: uppercase; color: var(--silver-200); }
.lb-meta { font-size: 0.78rem; letter-spacing: 0.18em; text-transform: uppercase; color: var(--silver-500); margin-top: 4px; }
.lb-close { width: 46px; height: 46px; display: grid; place-items: center; border: 1px solid var(--line-dark-strong); flex-shrink: 0; transition: background-color 0.3s; }
.lb-close svg { width: 18px; height: 18px; stroke: var(--silver-200); stroke-width: 1.5; fill: none; }
.lb-close:hover { background: rgba(229, 231, 235, 0.08); }

.lightbox-stage { position: relative; flex: 1; min-height: 0; display: flex; align-items: center; justify-content: center; padding: 20px 0; }
.lb-figure { width: 100%; height: 100%; display: flex; align-items: center; justify-content: center; }
.lb-figure img {
  max-width: 100%;
  max-height: 100%;
  object-fit: contain;
  box-shadow: 0 30px 80px -30px rgba(0, 0, 0, 0.9);
  transition: opacity 0.3s var(--ease);
  user-select: none;
  -webkit-user-drag: none;
}
.lb-figure img.is-loading { opacity: 0; }

.lb-nav {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  z-index: 2;
  width: 54px;
  height: 54px;
  display: grid;
  place-items: center;
  background: rgba(28, 30, 33, 0.7);
  border: 1px solid var(--line-dark-strong);
  transition: background-color 0.3s;
}
.lb-nav svg { width: 20px; height: 20px; stroke: var(--silver-200); stroke-width: 1.5; fill: none; }
.lb-nav[hidden] { display: none; }
.lb-nav:hover { background: var(--silver-200); }
.lb-nav:hover svg { stroke: var(--anthracite-900); }
.lb-prev { left: 0; }
.lb-next { right: 0; }

.lightbox-foot { display: flex; align-items: center; gap: 24px; padding-top: 18px; border-top: 1px solid var(--line-dark); }
.lb-counter { font-family: var(--font-display); font-size: 0.8rem; letter-spacing: 0.2em; color: var(--silver-500); flex-shrink: 0; }
.lb-thumbs { display: flex; gap: 10px; overflow-x: auto; scrollbar-width: thin; padding-bottom: 4px; }
.lb-thumbs button { flex-shrink: 0; width: 84px; height: 58px; overflow: hidden; border: 1px solid transparent; opacity: 0.45; transition: opacity 0.3s, border-color 0.3s; }
.lb-thumbs button img { width: 100%; height: 100%; object-fit: cover; }
.lb-thumbs button:hover { opacity: 0.8; }
.lb-thumbs button.active { opacity: 1; border-color: var(--silver-300); }

/* =========================================================
   REVEAL ANIMATIONS
   ========================================================= */
.reveal { opacity: 0; transform: translateY(28px); transition: opacity 0.9s var(--ease), transform 0.9s var(--ease); }
.reveal.visible { opacity: 1; transform: none; }

/* =========================================================
   RESPONSIVE
   ========================================================= */
@media (max-width: 1439px) {
  .nav-wrap { gap: 24px; }
  .main-nav ul { gap: 22px; }
  .nav-link { letter-spacing: 0.12em; }
  .btn-call--desktop { width: 44px; height: 44px; padding: 0; justify-content: center; }
  .btn-call--desktop span { display: none; }
}

@media (max-width: 1239px) {
  .header-actions { display: none; }
  .nav-toggle { display: block; }

  .main-nav {
    position: fixed;
    inset: 0;
    z-index: -1;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    gap: 40px;
    margin: 0;
    background: var(--anthracite-900);
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.45s var(--ease), visibility 0.45s;
  }
  .main-nav.open { opacity: 1; visibility: visible; }
  .main-nav ul { flex-direction: column; gap: 22px; text-align: center; }
  .main-nav .nav-link { font-size: 0.95rem; letter-spacing: 0.24em; }
  .mobile-actions { display: flex; flex-wrap: wrap; justify-content: center; gap: 12px; }
  .btn-call--mobile { display: inline-flex; }

  .project-gallery { columns: 3; }

  .service-grid { grid-template-columns: repeat(2, 1fr); }
  .service-card:nth-child(3) { border-left: 0; }
  .service-card:nth-child(n + 3) { border-top: 1px solid var(--line-dark); }
}

@media (max-width: 960px) {
  .project-gallery { columns: 2; column-gap: 16px; }
  .gallery-item { margin-bottom: 16px; }
  .about-grid,
  .urban-grid,
  .contact-grid { grid-template-columns: 1fr; }
  .about-media { max-width: 560px; }
  .footer-top { grid-template-columns: 1fr 1fr; }
  .footer-brand { grid-column: 1 / -1; }
  .pillars-grid { grid-template-columns: repeat(2, 1fr); }
  .pillar:nth-child(3) { border-left: 0; padding-left: 0; }
  .pillar:nth-child(n + 3) { border-top: 1px solid var(--line-dark); }
  .hero-content { padding-bottom: 240px; }
  .scroll-cue { display: none; }

  .hero-bg { width: 100%; -webkit-mask-image: none; mask-image: none; background-position: center 30%; transform-origin: center; }
  .hero-overlay {
    background:
      linear-gradient(180deg, rgba(28, 30, 33, 0.75) 0%, rgba(28, 30, 33, 0.72) 45%, rgba(28, 30, 33, 0.94) 100%);
  }
}

@media (max-width: 640px) {
  :root { --header-h: 70px; }
  .container { padding-inline: 20px; }
  .logo { gap: 10px; }
  .logo-strong,
  .logo-light { font-size: 0.92rem; letter-spacing: 0.26em; }
  .logo-rule { height: 14px; }

  .hero .eyebrow { letter-spacing: 0.2em; font-size: 0.66rem; }
  .hero-actions .btn { width: 100%; }
  .pillar { padding: 18px 14px; gap: 12px; }
  .pillar:nth-child(odd) { padding-left: 0; }
  .pillar-text { font-size: 0.68rem; letter-spacing: 0.08em; }
  .hero-content { padding-bottom: 210px; }

  .hero-signature { display: flex; gap: 16px; padding: 16px 18px; margin-top: 28px; }
  .hs-item { flex: 1; min-width: 0; }
  .hs-role { font-size: 0.56rem; letter-spacing: 0.24em; }
  .hs-name { font-size: 0.8rem; letter-spacing: 0.1em; white-space: normal; }
  .pillar-big { font-size: 1.6rem; }

  .project-gallery { column-gap: 10px; }
  .gallery-item { margin-bottom: 10px; }
  .gallery-item::after { inset: 8px; }
  .gallery-zoom { width: 44px; height: 44px; }

  .about-team { gap: 16px; }
  .team-member { padding-left: 12px; }
  .sig-name { font-size: 0.95rem; letter-spacing: 0.12em; }
  .contact-person strong { font-size: 0.98rem; letter-spacing: 0.1em; }
  .projects-cta { flex-direction: column; text-align: center; }

  .service-grid { grid-template-columns: 1fr; }
  .service-card { border-left: 0; padding: 40px 28px 44px; }
  .service-card + .service-card { border-top: 1px solid var(--line-dark); }

  .about-media { padding: 0 0 28px 28px; }
  .about-badge { right: 0; bottom: 48px; padding: 16px 22px; }

  .urban-step { gap: 20px; }
  .step-num { width: 48px; height: 48px; }
  .urban-steps::before { left: 23px; }

  .map-wrap { height: 340px; }
  .footer-top { grid-template-columns: 1fr; gap: 36px; }

  .whatsapp-float { right: 16px; bottom: 16px; height: 54px; padding: 0 15px; }
  .footer-bottom { padding-bottom: 92px; }
  .footer-bottom .footer-credit { font-size: 0.6rem; letter-spacing: 0.16em; }

  .lightbox-inner { padding: 16px; }
  .lb-nav { width: 44px; height: 44px; }
  .lb-thumbs button { width: 64px; height: 46px; }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after { animation-duration: 0.01ms !important; animation-iteration-count: 1 !important; transition-duration: 0.01ms !important; }
  html { scroll-behavior: auto; }
  .reveal { opacity: 1; transform: none; }
}