/* ==========================================================================
   Latif Güçlü Yapı — Kurumsal Web Sitesi
   ========================================================================== */

@font-face {
  font-family: "Cabinet Grotesk";
  src: url("../fonts/CabinetGrotesk-Extralight.woff2") format("woff2");
  font-weight: 200;
  font-style: normal;
  font-display: swap;
}

:root {
  /* Charcoal-gray scale — dark UI chrome (hero, footer, dark cards), matches logo's gray disc */
  --charcoal-950: #1a1a1a;
  --charcoal-900: #242424;
  --charcoal-800: #333333;
  --charcoal-700: #404040;
  --charcoal-600: #525252;
  /* Red scale — brand accent, matches logo's red exactly at 500 */
  --red-700: #7a0000;
  --red-600: #a30000;
  --red-500: #dc0000;
  --red-400: #ff3b3b;
  /* Warm-white tints — subtle red-in-white wash for alternating sections/badges */
  --tint-100: #faf6f6;
  --tint-200: #f6e9ea;
  --white: #ffffff;
  --ink: #1f1f1f;
  --gray-600: #595959;
  --gray-500: #767676;
  --gray-300: #d9d9d9;
  --gray-100: #f0f0f0;
  --success: #2f7a4d;

  --font-head: "Cabinet Grotesk", "Inter", "Segoe UI", sans-serif;
  --font-body: "Inter", "Segoe UI", system-ui, -apple-system, sans-serif;
  --font-script: "Euphoria Script", cursive;

  --container: 1200px;
  --radius: 6px;
  --shadow-sm: 0 2px 10px rgba(36, 36, 36, 0.06);
  --shadow-md: 0 10px 30px rgba(36, 36, 36, 0.10);
  --shadow-lg: 0 20px 50px rgba(36, 36, 36, 0.18);
  --transition: 0.35s cubic-bezier(.16,1,.3,1);
  --transition-slow: 0.6s cubic-bezier(.16,1,.3,1);
  --curve-h: 64px;
}

/* ---------- Reset ---------- */
* , *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: var(--font-body);
  color: var(--ink);
  background: var(--white);
  line-height: 1.65;
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}
img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
ul { list-style: none; }
button { font-family: inherit; cursor: pointer; border: none; background: none; }
input, textarea, select { font-family: inherit; font-size: 1rem; }
h1, h2, h3, h4 { font-family: var(--font-head); font-weight: 200; line-height: 1.15; letter-spacing: -0.01em; color: var(--charcoal-900); }
svg { display: block; }

.script {
  font-family: var(--font-script);
  font-weight: 400;
  line-height: 1;
  display: inline-block;
}

.container { width: 100%; max-width: var(--container); margin: 0 auto; padding: 0 24px; }

/* ---------- Utilities ---------- */
.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--red-600);
  margin-bottom: 14px;
}
.eyebrow::before {
  content: "";
  width: 28px;
  height: 2px;
  background: var(--red-500);
  display: inline-block;
}
.section { padding: 96px 0; }
.section-tight { padding: 64px 0; }
.section-title { font-size: clamp(1.7rem, 3vw, 2.5rem); margin-bottom: 18px; }
.section-head { max-width: 640px; margin-bottom: 56px; }
.section-head.center { margin-left: auto; margin-right: auto; text-align: center; }
.section-desc { color: var(--gray-600); font-size: 1.05rem; }
.section-curve-top { position: relative; }
.section-curve-top::before {
  content: ""; position: absolute; left: -5%; top: 0; width: 110%; height: var(--curve-h);
  background: var(--white); border-radius: 50%; transform: translateY(-62%); pointer-events: none;
}
.section-alt { background: var(--tint-100); position: relative; }
.section-alt::before, .section-alt::after {
  content: ""; position: absolute; left: -5%; width: 110%; height: var(--curve-h);
  background: var(--tint-100); border-radius: 50%; pointer-events: none;
}
.section-alt::before { top: 0; transform: translateY(-62%); }
.section-alt::after { bottom: 0; transform: translateY(62%); }
.text-red { color: var(--red-500); }

.btn {
  position: relative;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  padding: 15px 34px;
  border-radius: 999px;
  font-weight: 600;
  font-size: 0.95rem;
  letter-spacing: 0.02em;
  transition: transform var(--transition), box-shadow var(--transition), background var(--transition), border-color var(--transition), color var(--transition);
  white-space: nowrap;
  overflow: hidden;
  isolation: isolate;
}
.btn::before {
  content: "";
  position: absolute; top: 0; left: -60%; width: 40%; height: 100%;
  background: linear-gradient(115deg, transparent, rgba(255,255,255,0.45), transparent);
  transform: skewX(-18deg);
  transition: left 0.75s cubic-bezier(.16,1,.3,1);
  pointer-events: none;
  z-index: 1;
}
.btn:hover::before { left: 130%; }
.btn > * { position: relative; z-index: 2; }
.btn-primary { background: linear-gradient(135deg, var(--red-500), var(--red-700)); color: var(--white); box-shadow: 0 3px 14px rgba(220,0,0,0.3); }
.btn-primary:hover { background: linear-gradient(135deg, var(--red-600), var(--red-700)); transform: translateY(-3px); box-shadow: 0 12px 26px rgba(220,0,0,0.4); }
.btn-outline { background: transparent; color: var(--white); border: 1.5px solid rgba(255,255,255,0.55); }
.btn-outline:hover { background: rgba(255,255,255,0.12); border-color: var(--white); transform: translateY(-3px); }
.btn-dark { background: linear-gradient(135deg, var(--charcoal-700), var(--charcoal-950)); color: var(--white); box-shadow: 0 3px 14px rgba(26,26,26,0.28); }
.btn-dark:hover { background: linear-gradient(135deg, var(--charcoal-600), var(--charcoal-800)); transform: translateY(-3px); box-shadow: 0 12px 26px rgba(26,26,26,0.38); }
.btn-block { width: 100%; }
.btn-sm { padding: 11px 24px; font-size: 0.85rem; }

/* ---------- Header ---------- */
.topbar {
  background: var(--charcoal-950);
  color: rgba(255,255,255,0.75);
  font-size: 0.82rem;
}
.topbar .container { display: flex; justify-content: space-between; align-items: center; padding-top: 9px; padding-bottom: 9px; }
.topbar-left { display: flex; gap: 28px; }
.topbar-left span { display: inline-flex; align-items: center; gap: 8px; }
.topbar-left svg { width: 14px; height: 14px; stroke: var(--red-500); }
.topbar-social { display: flex; gap: 14px; }
.topbar-social a { width: 26px; height: 26px; border-radius: 50%; border: 1px solid rgba(255,255,255,0.25); display: flex; align-items: center; justify-content: center; transition: var(--transition); }
.topbar-social a:hover { background: var(--red-500); border-color: var(--red-500); color: var(--white); }
.topbar-social svg { width: 13px; height: 13px; }

.site-header {
  position: sticky; top: 0; z-index: 500;
  background: var(--white);
  box-shadow: 0 1px 0 rgba(36,36,36,0.08);
  transition: var(--transition);
}
.site-header .container { display: flex; align-items: center; justify-content: space-between; height: 92px; transition: var(--transition); }
.site-header.shrink .container { height: 72px; }

.brand { display: flex; align-items: center; gap: 12px; }
.brand-mark { width: 44px; height: 44px; flex-shrink: 0; }
.brand-text { display: flex; flex-direction: column; line-height: 1.15; }
.brand-text strong { font-family: var(--font-head); font-weight: 200; font-size: 1.32rem; color: var(--charcoal-900); letter-spacing: 0.01em; }
.brand-text small { font-size: 0.66rem; letter-spacing: 0.16em; color: var(--red-600); font-weight: 700; text-transform: uppercase; margin-top: 3px; }

.main-nav { display: flex; align-items: center; gap: 40px; }
.nav-links { display: flex; gap: 34px; }
.nav-links a {
  font-size: 0.92rem; font-weight: 600; color: var(--charcoal-800);
  position: relative; padding: 6px 0; transition: var(--transition);
}
.nav-links a::after {
  content: ""; position: absolute; left: 0; bottom: 0; width: 0; height: 2px;
  background: var(--red-500); transition: var(--transition);
}
.nav-links a:hover, .nav-links a.active { color: var(--red-600); }
.nav-links a:hover::after, .nav-links a.active::after { width: 100%; }

.header-cta { display: flex; align-items: center; gap: 20px; }
.header-phone { display: flex; align-items: center; gap: 10px; }
.header-phone .icon-badge {
  width: 42px; height: 42px; border-radius: 50%; background: var(--tint-200);
  display: flex; align-items: center; justify-content: center; flex-shrink: 0;
}
.header-phone .icon-badge svg { width: 18px; height: 18px; stroke: var(--red-600); }
.header-phone-text { line-height: 1.2; white-space: nowrap; }
.header-phone-text span { display: block; font-size: 0.72rem; color: var(--gray-500); }
.header-phone-text strong { font-size: 0.95rem; color: var(--charcoal-900); white-space: nowrap; }

.hamburger { display: none; flex-direction: column; gap: 5px; width: 30px; z-index: 600; }
.hamburger span { height: 2px; background: var(--charcoal-900); border-radius: 2px; transition: var(--transition); }
.hamburger.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.hamburger.open span:nth-child(2) { opacity: 0; }
.hamburger.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* ---------- Breadcrumb / Page header ---------- */
.page-hero {
  position: relative;
  background: var(--charcoal-950);
  padding: 100px 0 70px;
  overflow: hidden;
  color: var(--white);
}
.page-hero::before {
  content: "";
  position: absolute; inset: 0;
  background:
    radial-gradient(circle at 85% 20%, rgba(220,0,0,0.18), transparent 45%),
    linear-gradient(120deg, var(--charcoal-950) 0%, var(--charcoal-800) 100%);
}
.page-hero::after {
  content: "";
  position: absolute; inset: 0; pointer-events: none;
  background-image:
    linear-gradient(rgba(255,255,255,0.05) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,0.05) 1px, transparent 1px);
  background-size: 64px 64px;
  mask-image: linear-gradient(180deg, transparent, rgba(0,0,0,0.7) 60%, transparent);
}
.page-hero .word {
  position: absolute; right: 0; bottom: -0.22em; z-index: 1;
  font-family: var(--font-head); font-weight: 200; font-size: clamp(5rem, 13vw, 9rem);
  color: rgba(255,255,255,0.06); line-height: 0.8; white-space: nowrap; pointer-events: none;
  letter-spacing: -0.02em;
}
.page-hero .container { position: relative; z-index: 2; }
.page-hero h1 { color: var(--white); font-weight: 200; font-size: clamp(2.2rem, 4.6vw, 3.4rem); letter-spacing: -0.01em; margin-bottom: 14px; }
.breadcrumb { display: flex; align-items: center; gap: 8px; font-size: 0.9rem; color: rgba(255,255,255,0.65); }
.breadcrumb a:hover { color: var(--red-400); }
.breadcrumb svg { width: 12px; height: 12px; }

/* ---------- Hero (Home) ---------- */
.hero {
  position: relative;
  min-height: 88vh;
  display: flex;
  align-items: center;
  background: var(--charcoal-950);
  color: var(--white);
  overflow: hidden;
}
.hero-photo {
  position: absolute; inset: -20px; z-index: 0;
  width: calc(100% + 40px); height: calc(100% + 40px);
  object-fit: cover; object-position: center 30%;
  filter: blur(2.5px) saturate(1) brightness(0.85);
  pointer-events: none;
}
.hero::before {
  content: "";
  position: absolute; inset: 0; z-index: 1;
  background:
    radial-gradient(circle at 80% 15%, rgba(220,0,0,0.2), transparent 40%),
    radial-gradient(circle at 10% 90%, rgba(82,82,82,0.4), transparent 50%),
    linear-gradient(135deg, rgba(26,26,26,0.66) 0%, rgba(51,51,51,0.58) 55%, rgba(64,64,64,0.5) 100%);
}
.hero::after {
  content: "";
  position: absolute; inset: 0; z-index: 2; pointer-events: none;
  background-image:
    linear-gradient(rgba(255,255,255,0.045) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,0.045) 1px, transparent 1px);
  background-size: 72px 72px;
  mask-image: radial-gradient(circle at 75% 40%, rgba(0,0,0,0.8), transparent 65%);
}
.hero-word {
  position: absolute; right: -0.03em; bottom: -0.26em; z-index: 3;
  font-family: var(--font-head); font-weight: 200; font-size: clamp(7rem, 17vw, 14rem);
  color: rgba(255,255,255,0.07); line-height: 0.8; white-space: nowrap; pointer-events: none;
  letter-spacing: -0.02em;
}
.hero .container { position: relative; z-index: 4; }
.hero-content { max-width: 660px; padding: 70px 0; }
.hero-badge {
  display: inline-flex; align-items: center; gap: 10px;
  background: rgba(220,0,0,0.14); border: 1px solid rgba(220,0,0,0.4);
  color: var(--red-400); padding: 8px 18px; border-radius: 40px;
  font-size: 0.8rem; font-weight: 600; letter-spacing: 0.04em; margin-bottom: 26px;
}
.hero-badge svg { width: 14px; height: 14px; }
.hero h1 {
  color: var(--white);
  font-weight: 200;
  font-size: clamp(2.6rem, 5.6vw, 4.2rem);
  letter-spacing: -0.02em;
  margin-bottom: 22px;
}
.hero h1 span { color: var(--red-400); }
.hero-slogan.script {
  font-size: clamp(2rem, 3.4vw, 2.6rem);
  background: linear-gradient(90deg, var(--white), var(--red-500));
  -webkit-background-clip: text; background-clip: text; color: transparent;
  margin-bottom: 26px;
}
.typewriter-cursor {
  display: inline-block; width: 2px; margin-left: 3px; transform: translateY(2px);
  height: 0.9em; background: var(--red-500); animation: typewriter-blink 0.9s step-end infinite;
}
@keyframes typewriter-blink { 50% { opacity: 0; } }
.sr-only {
  position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px;
  overflow: hidden; clip: rect(0,0,0,0); white-space: nowrap; border: 0;
}
.hero p.lead { color: rgba(255,255,255,0.75); font-size: 1.08rem; max-width: 540px; margin-bottom: 38px; }
.hero-actions { display: flex; gap: 18px; flex-wrap: wrap; margin-bottom: 56px; }
.hero-meta { display: flex; gap: 40px; flex-wrap: wrap; }
.hero-meta div strong { display: block; font-family: var(--font-head); font-weight: 200; font-size: 2.1rem; color: var(--white); }
.hero-meta div span { font-size: 0.82rem; color: rgba(255,255,255,0.6); }

/* ---------- Stats strip ---------- */
.stats-strip {
  position: relative;
  background: linear-gradient(120deg, var(--charcoal-900) 0%, var(--charcoal-950) 100%);
}
.stats-strip::before {
  content: ''; position: absolute; top: 0; left: 0; right: 0; height: 2px;
  background: linear-gradient(90deg, transparent, var(--white) 35%, var(--red-500) 50%, var(--white) 65%, transparent);
}
.stats-grid { display: grid; grid-template-columns: repeat(4, 1fr); }
.stat-item {
  text-align: center; padding: 48px 20px; color: var(--white);
  border-right: 1px solid rgba(255,255,255,0.1);
}
.stat-item:last-child { border-right: none; }
.stat-item strong { display: block; font-family: var(--font-head); font-weight: 200; font-size: 2.8rem; margin-bottom: 6px; background: linear-gradient(90deg, var(--white), var(--red-500)); -webkit-background-clip: text; background-clip: text; color: transparent; letter-spacing: -0.01em; }
.stat-item span { font-size: 0.8rem; font-weight: 600; letter-spacing: 0.06em; text-transform: uppercase; color: rgba(255,255,255,0.55); }

/* ---------- About split ---------- */
.split { display: grid; grid-template-columns: 1fr 1fr; gap: 70px; align-items: center; }
.split-media { position: relative; }
.media-frame {
  position: relative; border-radius: var(--radius); overflow: hidden;
  aspect-ratio: 4/4.6; background: linear-gradient(160deg, var(--charcoal-800), var(--charcoal-950));
  box-shadow: var(--shadow-lg);
}
.media-frame svg { position: absolute; inset: 0; width: 100%; height: 100%; }
.media-frame img { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; }
.media-badge {
  position: absolute; left: -28px; bottom: 34px;
  background: var(--white); border-radius: var(--radius); box-shadow: var(--shadow-lg);
  padding: 22px 26px; display: flex; align-items: center; gap: 16px; max-width: 260px;
}
.media-badge .icon-badge { width: 44px; height: 44px; border-left: 2px solid var(--red-500); display: flex; align-items: center; justify-content: center; flex-shrink: 0; }
.media-badge .icon-badge svg { width: 24px; height: 24px; stroke: var(--red-600); }
.media-badge strong { display: block; font-family: var(--font-head); font-weight: 200; font-size: 1.6rem; color: var(--charcoal-900); }
.media-badge span { font-size: 0.78rem; color: var(--gray-600); }

.check-list { margin: 26px 0; }
.check-list li { display: flex; align-items: flex-start; gap: 12px; padding: 9px 0; color: var(--gray-600); }
.check-list svg { width: 20px; height: 20px; flex-shrink: 0; stroke: var(--red-600); margin-top: 1px; }
.check-list strong { color: var(--charcoal-900); }

/* ---------- Services ---------- */
.services-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1px; background: var(--gray-100); border: 1px solid var(--gray-100); }
.services-grid.services-grid-4 { grid-template-columns: repeat(2, 1fr); }
.service-card {
  background: var(--white); padding: 44px 36px; transition: var(--transition); position: relative;
}
.service-card:hover { background: var(--charcoal-950); }
.service-card:hover h3, .service-card:hover p { color: rgba(255,255,255,0.82); }
.service-card:hover .service-link { color: var(--red-400); }
.service-card .num {
  font-family: var(--font-head); font-weight: 200; font-size: 3.4rem; line-height: 1;
  color: var(--gray-300); margin-bottom: 18px; transition: var(--transition);
}
.service-card:hover .num { color: rgba(255,255,255,0.25); }
.service-card h3 { font-size: 1.2rem; margin-bottom: 12px; transition: var(--transition); }
.service-card p { color: var(--gray-600); font-size: 0.95rem; margin-bottom: 18px; transition: var(--transition); }
.service-link { display: inline-flex; align-items: center; gap: 8px; font-size: 0.85rem; font-weight: 700; color: var(--red-600); letter-spacing: 0.02em; transition: var(--transition); }
.service-link svg { width: 14px; height: 14px; transition: var(--transition); }
.service-card:hover .service-link svg { transform: translateX(4px); }

/* ---------- Process ---------- */
.process-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 30px; position: relative; }
.process-step { text-align: left; padding: 28px 0 0; position: relative; border-top: 2px solid var(--red-500); }
.process-step .step-circle {
  font-family: var(--font-head); font-weight: 200; font-size: 2.6rem; color: var(--red-600);
  margin-bottom: 16px; line-height: 1;
}
.process-step h3 { font-size: 1.05rem; margin-bottom: 10px; }
.process-step p { color: var(--gray-600); font-size: 0.9rem; }

/* ---------- Projects ---------- */
.filter-bar { display: flex; gap: 12px; flex-wrap: wrap; margin-bottom: 46px; }
.filter-btn {
  padding: 11px 24px; border-radius: 40px; border: 1.5px solid var(--gray-300);
  font-size: 0.88rem; font-weight: 600; color: var(--charcoal-800); transition: var(--transition);
}
.filter-btn:hover { border-color: var(--red-500); color: var(--red-600); }
.filter-btn.active { background: var(--charcoal-950); border-color: var(--charcoal-950); color: var(--white); }

.projects-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 32px; }
.project-card {
  border-radius: var(--radius); overflow: hidden; background: var(--white);
  box-shadow: var(--shadow-sm); transition: var(--transition);
}
.project-card:hover { box-shadow: var(--shadow-lg); transform: translateY(-6px); }
.project-thumb { position: relative; aspect-ratio: 4/3; overflow: hidden; }
.project-thumb svg { width: 100%; height: 100%; transition: transform 0.6s cubic-bezier(.16,1,.3,1); }
.project-card:hover .project-thumb svg { transform: scale(1.06); }
.project-status {
  position: absolute; top: 16px; left: 16px; padding: 6px 14px; border-radius: 30px;
  font-size: 0.72rem; font-weight: 700; letter-spacing: 0.03em; text-transform: uppercase;
  background: var(--red-500); color: var(--white);
}
.project-status.done { background: var(--success); color: var(--white); }
.project-status.planned { background: var(--charcoal-700); color: var(--white); }
.project-body { padding: 26px 28px 28px; }
.project-body .loc { display: flex; align-items: center; gap: 7px; font-size: 0.8rem; color: var(--gray-500); margin-bottom: 10px; }
.project-body .loc svg { width: 14px; height: 14px; stroke: var(--red-600); }
.project-body h3 { font-size: 1.18rem; margin-bottom: 12px; }
.project-specs { display: flex; gap: 18px; padding-top: 16px; margin-top: 16px; border-top: 1px solid var(--gray-100); }
.project-specs span { font-size: 0.78rem; color: var(--gray-600); display: flex; align-items: center; gap: 6px; }
.project-specs svg { width: 15px; height: 15px; stroke: var(--red-600); }

/* ---------- Why us / features ---------- */
.features-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 32px; }
.feature-card { text-align: left; border-top: 2px solid var(--charcoal-900); padding: 26px 20px 0 0; }
.feature-icon {
  display: block; font-family: var(--font-head); font-weight: 200; font-size: 3rem;
  color: var(--red-500); margin-bottom: 14px; line-height: 1;
}
.feature-card h3 { font-size: 1.05rem; margin-bottom: 10px; }
.feature-card p { color: var(--gray-600); font-size: 0.9rem; }

/* ---------- Timeline (about) ---------- */
.timeline { position: relative; margin-top: 20px; }
.timeline::before { content: ""; position: absolute; left: 30px; top: 0; bottom: 0; width: 2px; background: var(--gray-300); }
.timeline-item { position: relative; padding: 0 0 44px 78px; }
.timeline-item:last-child { padding-bottom: 0; }
.timeline-item::before {
  content: ""; position: absolute; left: 21px; top: 4px; width: 20px; height: 20px; border-radius: 50%;
  background: var(--white); border: 3px solid var(--red-500);
}
.timeline-item .year { font-family: var(--font-head); font-weight: 200; color: var(--red-600); font-size: 1.8rem; display: block; margin-bottom: 6px; }
.timeline-item h3 { font-size: 1.05rem; margin-bottom: 8px; }
.timeline-item p { color: var(--gray-600); font-size: 0.92rem; }

/* ---------- Values grid ---------- */
.values-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 1px; background: var(--gray-100); border: 1px solid var(--gray-100); }
.value-card {
  display: flex; gap: 22px; align-items: flex-start; background: var(--white); padding: 34px; transition: var(--transition);
}
.value-card:hover { background: var(--tint-100); }
.value-num {
  flex-shrink: 0; font-family: var(--font-head); font-weight: 200; font-size: 2.6rem;
  color: var(--red-500); line-height: 1;
}
.value-card h3 { font-size: 1.05rem; margin-bottom: 8px; }
.value-card p { color: var(--gray-600); font-size: 0.9rem; }

/* ---------- Reference projects ---------- */
.ref-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1px; background: var(--gray-100); border: 1px solid var(--gray-100); }
.ref-card { background: var(--white); padding: 32px; transition: var(--transition); }
.ref-card:hover { background: var(--tint-100); }
.ref-card-head { display: flex; align-items: center; gap: 14px; margin-bottom: 18px; }
.ref-icon {
  width: 44px; height: 44px; border-radius: 50%; background: var(--tint-200);
  display: flex; align-items: center; justify-content: center; flex-shrink: 0;
}
.ref-icon svg { width: 22px; height: 22px; stroke: var(--red-600); }
.ref-card h3 { font-size: 1rem; line-height: 1.3; }
.ref-card ul { display: flex; flex-direction: column; gap: 10px; }
.ref-card li { position: relative; padding-left: 16px; color: var(--gray-600); font-size: 0.87rem; line-height: 1.5; }
.ref-card li::before {
  content: ""; position: absolute; left: 0; top: 0.55em; width: 6px; height: 6px;
  border-radius: 50%; background: var(--red-500);
}

/* ---------- Team ---------- */
.team-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 28px; }
.team-grid.team-grid-solo { grid-template-columns: minmax(0, 260px); justify-content: center; }
.team-card { text-align: center; }
.team-photo {
  aspect-ratio: 1/1.05; border-radius: var(--radius); overflow: hidden; margin-bottom: 20px;
  background: linear-gradient(160deg, var(--charcoal-800), var(--charcoal-950));
  display: flex; align-items: center; justify-content: center; position: relative;
}
.team-photo svg { width: 56%; opacity: 0.85; }
.team-card h3 { font-size: 1.05rem; margin-bottom: 4px; }
.team-card span { font-size: 0.85rem; color: var(--red-600); font-weight: 600; }

/* ---------- Testimonials ---------- */
.testimonial-track { display: grid; grid-template-columns: repeat(3, 1fr); gap: 44px; }
.testimonial-card { padding: 0; }
.testimonial-mark { font-family: var(--font-head); font-weight: 200; font-size: 3.4rem; color: var(--red-500); line-height: 1; margin-bottom: 4px; }
.testimonial-card p.quote { color: var(--charcoal-800); font-size: 1.05rem; line-height: 1.6; margin-bottom: 24px; }
.testimonial-person { display: flex; align-items: center; gap: 14px; padding-top: 18px; border-top: 1px solid var(--gray-100); }
.testimonial-avatar {
  width: 42px; height: 42px; border-radius: 50%; border: 1px solid var(--gray-300);
  display: flex; align-items: center; justify-content: center; font-family: var(--font-body);
  font-size: 0.8rem; color: var(--red-600); font-weight: 700;
}
.testimonial-person strong { display: block; font-size: 0.92rem; color: var(--charcoal-900); }
.testimonial-person span { font-size: 0.78rem; color: var(--gray-500); }

/* ---------- CTA banner ---------- */
.cta-banner {
  position: relative; background: var(--charcoal-950); color: var(--white);
  border-radius: var(--radius); padding: 64px 60px; overflow: hidden;
  display: flex; align-items: center; justify-content: space-between; gap: 40px; flex-wrap: wrap;
}
.cta-banner::before {
  content: ""; position: absolute; inset: 0;
  background: radial-gradient(circle at 90% 20%, rgba(220,0,0,0.25), transparent 50%);
}
.cta-banner > * { position: relative; z-index: 2; }
.cta-banner h2 { color: var(--white); font-size: clamp(1.5rem, 3vw, 2.1rem); margin-bottom: 10px; }
.cta-banner p { color: rgba(255,255,255,0.7); }
.cta-actions { display: flex; gap: 16px; flex-wrap: wrap; }

/* ---------- Forms ---------- */
.contact-grid { display: grid; grid-template-columns: 1.1fr 0.9fr; gap: 60px; align-items: flex-start; }
.form-card { background: var(--white); border-radius: var(--radius); padding: 44px; box-shadow: var(--shadow-md); border: 1px solid var(--gray-100); }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; margin-bottom: 20px; }
.form-group { margin-bottom: 20px; }
.form-group label { display: block; font-size: 0.85rem; font-weight: 700; color: var(--charcoal-900); margin-bottom: 8px; }
.form-group input, .form-group select, .form-group textarea {
  width: 100%; padding: 14px 16px; border: 1.5px solid var(--gray-300); border-radius: var(--radius);
  transition: var(--transition); color: var(--ink); background: var(--white);
}
.form-group input:focus, .form-group select:focus, .form-group textarea:focus {
  outline: none; border-color: var(--red-500); box-shadow: 0 0 0 3px rgba(220,0,0,0.15);
}
.form-group textarea { resize: vertical; min-height: 130px; }
.form-note { font-size: 0.8rem; color: var(--gray-500); margin-top: 14px; }
.form-success {
  display: none; align-items: center; gap: 12px; background: #eaf6ee; color: var(--success);
  padding: 16px 18px; border-radius: var(--radius); font-size: 0.9rem; font-weight: 600; margin-bottom: 20px;
}
.form-success.show { display: flex; }
.form-success svg { width: 20px; height: 20px; flex-shrink: 0; stroke: var(--success); }

.contact-info-list { display: flex; flex-direction: column; gap: 22px; margin-bottom: 34px; }
.contact-info-item { display: flex; gap: 18px; align-items: flex-start; }
.contact-info-item .icon-badge { width: 52px; height: 52px; border-radius: 50%; background: var(--tint-200); display: flex; align-items: center; justify-content: center; flex-shrink: 0; }
.contact-info-item .icon-badge svg { width: 22px; height: 22px; stroke: var(--red-600); }
.contact-info-item strong { display: block; font-size: 0.95rem; color: var(--charcoal-900); margin-bottom: 4px; }
.contact-info-item span, .contact-info-item a { font-size: 0.9rem; color: var(--gray-600); }
.map-frame { border-radius: var(--radius); overflow: hidden; box-shadow: var(--shadow-sm); border: 1px solid var(--gray-100); aspect-ratio: 16/11; }
.map-frame iframe { width: 100%; height: 100%; border: 0; }

/* ---------- FAQ ---------- */
.faq-list { max-width: 780px; margin: 0 auto; }
.faq-item { border-bottom: 1px solid var(--gray-100); }
.faq-q {
  width: 100%; display: flex; justify-content: space-between; align-items: center;
  padding: 22px 4px; font-weight: 700; font-size: 1rem; color: var(--charcoal-900); text-align: left;
}
.faq-q svg { width: 18px; height: 18px; stroke: var(--red-600); flex-shrink: 0; transition: var(--transition); }
.faq-item.open .faq-q svg { transform: rotate(45deg); }
.faq-a { max-height: 0; overflow: hidden; transition: var(--transition); color: var(--gray-600); font-size: 0.92rem; }
.faq-item.open .faq-a { max-height: 300px; padding-bottom: 22px; }

/* ---------- Footer ---------- */
.site-footer { background: var(--charcoal-950); color: rgba(255,255,255,0.65); position: relative; }
.site-footer::before {
  content: ""; position: absolute; left: -5%; top: 0; width: 110%; height: var(--curve-h);
  background: var(--charcoal-950); border-radius: 50%; transform: translateY(-62%); pointer-events: none;
}
.footer-top { padding: 76px 0 50px; }
.footer-grid { display: grid; grid-template-columns: 1.4fr 0.8fr 0.8fr 1fr; gap: 50px; }
.footer-brand .brand-text strong { color: var(--white); }
.footer-about { margin: 20px 0 24px; font-size: 0.9rem; line-height: 1.8; }
.footer-social { display: flex; gap: 12px; }
.footer-social a { width: 36px; height: 36px; border-radius: 50%; border: 1px solid rgba(255,255,255,0.2); display: flex; align-items: center; justify-content: center; transition: var(--transition); }
.footer-social a:hover { background: var(--red-500); border-color: var(--red-500); }
.footer-social svg { width: 15px; height: 15px; }
.footer-col h4 { color: var(--red-400); font-size: 0.78rem; font-weight: 700; letter-spacing: 0.14em; text-transform: uppercase; margin-bottom: 26px; font-family: var(--font-body); }
.footer-links li { margin-bottom: 13px; }
.footer-links a { font-size: 0.9rem; transition: var(--transition); display: inline-flex; align-items: center; gap: 8px; }
.footer-links a:hover { color: var(--red-400); padding-left: 4px; }
.footer-contact li { display: flex; gap: 12px; margin-bottom: 16px; font-size: 0.9rem; align-items: flex-start; }
.footer-contact svg { width: 16px; height: 16px; stroke: var(--red-500); flex-shrink: 0; margin-top: 2px; }
.footer-bottom { border-top: 1px solid rgba(255,255,255,0.1); padding: 24px 0; display: flex; justify-content: space-between; align-items: center; font-size: 0.82rem; flex-wrap: wrap; gap: 10px; }
.footer-bottom a:hover { color: var(--red-400); }
.footer-bottom-links { display: flex; gap: 22px; padding-right: 70px; }

/* ---------- Back to top ---------- */
.back-to-top {
  position: fixed; right: 26px; bottom: 26px; width: 48px; height: 48px; border-radius: 50%;
  background: var(--charcoal-950); color: var(--red-400); display: flex; align-items: center; justify-content: center;
  box-shadow: var(--shadow-lg); opacity: 0; visibility: hidden; transform: translateY(12px);
  transition: var(--transition); z-index: 400;
}
.back-to-top.show { opacity: 1; visibility: visible; transform: translateY(0); }
.back-to-top svg { width: 20px; height: 20px; }

/* ---------- Reveal animation ---------- */
.reveal { opacity: 0; transform: translateY(36px) scale(0.98); transition: opacity 0.9s cubic-bezier(.16,1,.3,1), transform 0.9s cubic-bezier(.16,1,.3,1); }
.reveal.in { opacity: 1; transform: translateY(0) scale(1); }

/* ---------- Mobile nav panel ---------- */
.mobile-panel {
  position: fixed; inset: 0; background: var(--charcoal-950); z-index: 550;
  display: flex; flex-direction: column; padding: 110px 40px 40px;
  transform: translateX(100%); transition: transform 0.5s cubic-bezier(.16,1,.3,1);
}
.mobile-panel.open { transform: translateX(0); }
.mobile-panel-close {
  position: absolute; top: 28px; right: 24px; width: 44px; height: 44px;
  display: flex; align-items: center; justify-content: center;
  background: transparent; border: 1px solid rgba(255,255,255,0.2); border-radius: 50%;
  color: var(--white); cursor: pointer;
}
.mobile-panel-close svg { width: 20px; height: 20px; }
.mobile-panel-close:hover { border-color: var(--red-500); color: var(--red-500); }
.mobile-panel a { display: block; color: var(--white); font-size: 1.6rem; font-family: var(--font-head); font-weight: 200; padding: 16px 0; border-bottom: 1px solid rgba(255,255,255,0.1); }
.mobile-panel .header-phone { margin-top: 30px; }
.mobile-panel .header-phone-text span, .mobile-panel .header-phone-text strong { color: rgba(255,255,255,0.85); }

/* ---------- Single project detail ---------- */
.project-hero { display: grid; grid-template-columns: 1.5fr 1fr; gap: 40px; align-items: stretch; }
.project-hero-media { position: relative; border-radius: var(--radius); overflow: hidden; min-height: 360px; box-shadow: var(--shadow-md); }
.project-hero-media img { width: 100%; height: 100%; object-fit: cover; }
.project-hero-media .project-status { position: absolute; top: 18px; left: 18px; }
.project-facts { background: var(--charcoal-950); color: var(--white); border-radius: var(--radius); padding: 36px 34px; display: flex; flex-direction: column; }
.project-facts h3 { color: var(--white); font-size: 1.3rem; margin-bottom: 4px; }
.project-facts .loc { display: flex; align-items: center; gap: 8px; color: var(--red-400); font-size: 0.88rem; margin-bottom: 24px; }
.project-facts .loc svg { width: 15px; height: 15px; }
.fact-list { display: flex; flex-direction: column; gap: 16px; margin-bottom: 26px; flex: 1; }
.fact-row { display: flex; justify-content: space-between; align-items: center; gap: 12px; padding-bottom: 14px; border-bottom: 1px solid rgba(255,255,255,0.1); font-size: 0.92rem; }
.fact-row span:first-child { color: rgba(255,255,255,0.6); }
.fact-row strong { color: var(--white); font-weight: 700; text-align: right; }
.project-disclaimer { font-size: 0.76rem; color: rgba(255,255,255,0.45); line-height: 1.6; margin-top: auto; }

.spec-chip-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 1px; background: var(--gray-100); border: 1px solid var(--gray-100); margin: 50px 0; }
.spec-chip { background: var(--white); padding: 30px 24px; text-align: center; }
.spec-chip strong { display: block; font-family: var(--font-head); font-weight: 200; font-size: 2.2rem; color: var(--charcoal-900); margin-bottom: 6px; }
.spec-chip span { font-size: 0.82rem; color: var(--gray-600); }

.gallery-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 14px; }
.gallery-item { position: relative; aspect-ratio: 4/3; overflow: hidden; border-radius: var(--radius); cursor: zoom-in; }
.gallery-item img { width: 100%; height: 100%; object-fit: cover; transition: transform 0.5s cubic-bezier(.16,1,.3,1); }
.gallery-item:hover img { transform: scale(1.08); }
.gallery-item::after {
  content: ""; position: absolute; inset: 0; background: rgba(26,26,26,0); transition: var(--transition);
}
.gallery-item:hover::after { background: rgba(26,26,26,0.15); }

.plan-tabs { display: flex; gap: 10px; flex-wrap: wrap; margin-bottom: 30px; }
.plan-tab {
  padding: 11px 22px; border-radius: 40px; border: 1.5px solid var(--gray-300);
  font-size: 0.86rem; font-weight: 600; color: var(--charcoal-800); transition: var(--transition);
}
.plan-tab:hover { border-color: var(--red-500); color: var(--red-600); }
.plan-tab.active { background: var(--charcoal-950); border-color: var(--charcoal-950); color: var(--white); }
.plan-viewer { border-radius: var(--radius); overflow: hidden; box-shadow: var(--shadow-md); border: 1px solid var(--gray-100); cursor: zoom-in; }
.plan-viewer img { width: 100%; display: block; }
.spec-table-wrap { overflow-x: auto; margin-top: 50px; border: 1px solid var(--gray-100); border-radius: var(--radius); }
.spec-table { width: 100%; border-collapse: collapse; font-size: 0.9rem; min-width: 520px; }
.spec-table th, .spec-table td { padding: 14px 18px; text-align: left; border-bottom: 1px solid var(--gray-100); }
.spec-table th { background: var(--charcoal-950); color: var(--white); font-weight: 700; font-size: 0.78rem; text-transform: uppercase; letter-spacing: 0.04em; }
.spec-table tbody tr:hover { background: var(--tint-100); }
.spec-table tbody tr:last-child td { border-bottom: none; }
.spec-table td.unit-id { font-family: var(--font-head); font-weight: 200; font-size: 1.2rem; color: var(--red-600); }

.lightbox {
  position: fixed; inset: 0; z-index: 900; background: rgba(15,15,15,0.94);
  display: none; align-items: center; justify-content: center; padding: 40px;
}
.lightbox.open { display: flex; }
.lightbox img { max-width: 100%; max-height: 80vh; border-radius: 4px; box-shadow: var(--shadow-lg); }
.lightbox-caption { position: absolute; left: 0; right: 0; bottom: 24px; text-align: center; color: rgba(255,255,255,0.7); font-size: 0.85rem; }
.lightbox-close, .lightbox-prev, .lightbox-next {
  position: absolute; background: rgba(255,255,255,0.08); border: 1px solid rgba(255,255,255,0.2);
  color: var(--white); border-radius: 50%; width: 46px; height: 46px; display: flex; align-items: center; justify-content: center;
  transition: var(--transition);
}
.lightbox-close:hover, .lightbox-prev:hover, .lightbox-next:hover { background: var(--red-500); border-color: var(--red-500); color: var(--white); }
.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-close svg, .lightbox-prev svg, .lightbox-next svg { width: 20px; height: 20px; }

/* ==========================================================================
   Responsive
   ========================================================================== */
@media (max-width: 1150px) {
  .header-phone { display: none; }
  .main-nav { gap: 24px; }
  .nav-links { gap: 22px; }
}
@media (max-width: 1100px) {
  .services-grid { grid-template-columns: repeat(2, 1fr); }
  .projects-grid { grid-template-columns: repeat(2, 1fr); }
  .features-grid { grid-template-columns: repeat(2, 1fr); }
  .team-grid { grid-template-columns: repeat(2, 1fr); }
  .ref-grid { grid-template-columns: repeat(2, 1fr); }
  .testimonial-track { grid-template-columns: 1fr; }
  .process-grid { grid-template-columns: repeat(2, 1fr); row-gap: 40px; }
  .footer-grid { grid-template-columns: 1fr 1fr; row-gap: 40px; }
  .project-hero { grid-template-columns: 1fr; }
  .project-hero-media { min-height: 300px; }
  .gallery-grid { grid-template-columns: repeat(3, 1fr); }
}
@media (max-width: 960px) {
  .topbar { display: none; }
  .nav-links, .header-phone { display: none; }
  .hamburger { display: flex; }
  .split { grid-template-columns: 1fr; gap: 50px; }
  .split-media { order: -1; width: 100%; max-width: 420px; margin: 0 auto; }
  .split-media .media-frame { height: min(115vw - 55px, 483px); }
  .contact-grid { grid-template-columns: 1fr; }
  .stats-grid { grid-template-columns: repeat(2, 1fr); }
  .stat-item:nth-child(2) { border-right: none; }
  .stat-item { border-bottom: 1px solid rgba(255,255,255,0.1); }
  .spec-chip-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 720px) {
  .section { padding: 64px 0; }
  .services-grid, .projects-grid, .features-grid, .team-grid, .values-grid, .footer-grid, .ref-grid { grid-template-columns: 1fr; }
  .process-grid { grid-template-columns: 1fr; }
  .form-row { grid-template-columns: 1fr; }
  .cta-banner { padding: 44px 28px; flex-direction: column; text-align: center; }
  .hero-content { padding: 46px 0; }
  .hero-meta { gap: 26px; }
  .footer-bottom { flex-direction: column; text-align: center; padding-bottom: 90px; }
  .footer-bottom-links { padding-right: 0; }
  .media-badge { left: 16px; }
  .gallery-grid { grid-template-columns: repeat(2, 1fr); }
  .plan-unit-table { grid-template-columns: repeat(2, 1fr); }
  .lightbox-prev, .lightbox-next { width: 38px; height: 38px; }
  .lightbox { padding: 16px; }
}