/* =========================================================
   KayaDoor — Çelik Kapı
   Shared stylesheet (all pages). Tokens follow DESIGN.md.
   ========================================================= */

:root {
  --red: #E31E3D;
  --red-dark: #B8172F;
  --charcoal: #292A2D;
  --charcoal-2: #1E1F21;
  --charcoal-3: #34353A;
  --steel: #6D6E73;
  --steel-light: #A8A9AD;
  --bg: #F5F4F2;
  --bg-2: #ECEAE6;
  --card: #FFFFFF;
  --border: #E2E0DC;
  --line-dark: rgba(255, 255, 255, 0.12);
  --text: #292A2D;

  --font-display: 'Cabinet Grotesk', 'Plus Jakarta Sans', system-ui, sans-serif;
  --font-body: 'Plus Jakarta Sans', system-ui, sans-serif;

  --s-2xs: 2px; --s-xs: 4px; --s-sm: 8px; --s-md: 16px;
  --s-lg: 24px; --s-xl: 32px; --s-2xl: 48px; --s-3xl: 64px; --s-4xl: 96px; --s-5xl: 128px;
  --r-sm: 4px; --r-md: 8px; --r-lg: 12px;

  --ease-out: cubic-bezier(0.22, 1, 0.36, 1);
  --ease-in: cubic-bezier(0.55, 0, 1, 0.45);
  --ease-io: cubic-bezier(0.65, 0, 0.35, 1);

  --header-h: 72px;
  --wrap: 1200px;
}

/* ---------- Base ---------- */
*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  overflow-x: clip;
}
img, svg { display: block; max-width: 100%; }
a { color: inherit; }
h1, h2, h3, h4 {
  font-family: var(--font-display);
  font-weight: 800;
  letter-spacing: -0.02em;
  line-height: 1.05;
  margin: 0;
}
p { margin: 0; }
::selection { background: var(--red); color: #fff; }
:focus-visible { outline: 2px solid var(--red); outline-offset: 3px; }

.wrap { max-width: var(--wrap); margin: 0 auto; padding: 0 var(--s-xl); }
.section { padding: var(--s-5xl) 0; position: relative; }
.section--tight { padding: var(--s-4xl) 0; }
.section--dark { background: var(--charcoal); color: #fff; }
.section--alt { background: var(--bg-2); }

.eyebrow {
  display: inline-flex; align-items: center; gap: 10px;
  font-weight: 700; font-size: 12px; letter-spacing: 0.14em; text-transform: uppercase;
  color: var(--steel);
  margin-bottom: var(--s-md);
}
.eyebrow::before { content: ""; width: 24px; height: 2px; background: var(--red); }
.section--dark .eyebrow, .hero .eyebrow, .page-hero .eyebrow { color: var(--steel-light); }

.h-xl { font-size: clamp(40px, 5.6vw, 82px); font-weight: 900; letter-spacing: -0.035em; line-height: 0.98; }
.h-lg { font-size: clamp(32px, 4.4vw, 60px); font-weight: 800; letter-spacing: -0.03em; }
.h-md { font-size: clamp(24px, 2.6vw, 34px); }
.lede { font-size: clamp(16px, 1.35vw, 19px); color: var(--steel); max-width: 52ch; }
.section--dark .lede, .hero .lede, .page-hero .lede { color: var(--steel-light); }

.section-head { display: flex; justify-content: space-between; align-items: flex-end; gap: var(--s-xl); margin-bottom: var(--s-3xl); flex-wrap: wrap; }
.section-head .lede { margin-top: var(--s-md); }

.skip-link {
  position: absolute; left: -999px; top: 0; z-index: 200;
  background: var(--red); color: #fff; padding: 12px 20px; border-radius: 0 0 var(--r-md) 0;
}
.skip-link:focus { left: 0; }

/* ---------- Buttons ---------- */
.btn {
  --bg-btn: var(--red);
  position: relative; overflow: hidden;
  display: inline-flex; align-items: center; justify-content: center; gap: 10px;
  min-height: 52px; padding: 0 26px;
  font: 700 15px/1 var(--font-body); letter-spacing: 0.01em;
  border-radius: var(--r-md); border: 0; cursor: pointer; text-decoration: none;
  isolation: isolate;
  transition: transform 250ms var(--ease-out), color 250ms var(--ease-out), border-color 250ms var(--ease-out);
}
.btn svg { width: 18px; height: 18px; flex: none; }
.btn-primary { background: var(--red); color: #fff; }
.btn-primary::after {
  content: ""; position: absolute; inset: 0; z-index: -1;
  background: var(--red-dark);
  transform: translateY(101%); transition: transform 350ms var(--ease-out);
}
.btn-primary:hover::after, .btn-primary:focus-visible::after { transform: translateY(0); }
.btn-ghost { background: transparent; color: #fff; box-shadow: inset 0 0 0 1.5px rgba(255,255,255,0.3); }
.btn-ghost::after {
  content: ""; position: absolute; inset: 0; z-index: -1; background: #fff;
  transform: translateY(101%); transition: transform 350ms var(--ease-out);
}
.btn-ghost:hover, .btn-ghost:focus-visible { color: var(--charcoal); }
.btn-ghost:hover::after, .btn-ghost:focus-visible::after { transform: translateY(0); }
.btn-dark { background: var(--charcoal); color: #fff; }
.btn-dark::after {
  content: ""; position: absolute; inset: 0; z-index: -1; background: #000;
  transform: translateY(101%); transition: transform 350ms var(--ease-out);
}
.btn-dark:hover::after { transform: translateY(0); }
.btn:active { transform: scale(0.98); }

.link-arrow {
  display: inline-flex; align-items: center; gap: 8px;
  font-weight: 700; font-size: 15px; text-decoration: none;
  padding-bottom: 4px; background: linear-gradient(currentColor, currentColor) 0 100% / 0 2px no-repeat;
  transition: background-size 350ms var(--ease-out);
}
.link-arrow span { transition: transform 350ms var(--ease-out); display: inline-block; }
.link-arrow:hover { background-size: 100% 2px; }
.link-arrow:hover span { transform: translateX(4px); }

/* ---------- Header ---------- */
.progress {
  position: fixed; left: 0; top: 0; height: 2px; width: 100%; z-index: 120;
  background: var(--red); transform-origin: 0 50%; transform: scaleX(0);
  pointer-events: none;
}
.site-header {
  position: fixed; inset: 0 0 auto 0; z-index: 100;
  height: var(--header-h);
  color: #fff;
  transition: transform 450ms var(--ease-out), background-color 300ms ease, box-shadow 300ms ease, height 300ms var(--ease-out);
  view-transition-name: site-header;
}
.site-header.is-solid { background: rgba(30, 31, 33, 0.92); backdrop-filter: blur(12px); -webkit-backdrop-filter: blur(12px); box-shadow: 0 1px 0 var(--line-dark); --header-h: 64px; }
.site-header.is-hidden { transform: translateY(-100%); }
.nav-row { height: 100%; display: flex; align-items: center; justify-content: space-between; gap: var(--s-lg); }

.brand { display: inline-flex; align-items: center; gap: 12px; text-decoration: none; color: #fff; }
.brand .kd-mark { height: 34px; width: auto; transition: transform 500ms var(--ease-out); }
.brand .kd-word { height: 17px; width: auto; }
.brand:hover .kd-mark { transform: translateY(-2px); }
.brand .m-leaf { transform-box: fill-box; transform-origin: 0 50%; transition: transform 500ms var(--ease-out); }
.brand:hover .m-leaf { transform: scaleX(0.55); }

.nav-links { display: flex; align-items: center; gap: var(--s-xl); list-style: none; margin: 0; padding: 0; }
.nav-links a {
  position: relative; text-decoration: none; font-weight: 600; font-size: 14px; color: var(--steel-light);
  padding: 6px 0; transition: color 200ms;
}
.nav-links a::after {
  content: ""; position: absolute; left: 0; right: 0; bottom: 0; height: 2px; background: var(--red);
  transform: scaleX(0); transform-origin: 100% 50%; transition: transform 350ms var(--ease-out);
}
.nav-links a:hover, .nav-links a[aria-current="page"] { color: #fff; }
.nav-links a:hover::after, .nav-links a[aria-current="page"]::after { transform: scaleX(1); transform-origin: 0 50%; }
.nav-cta { min-height: 42px; padding: 0 18px; font-size: 14px; }

.nav-toggle {
  display: none; position: relative; z-index: 3;
  width: 44px; height: 44px; border: 0; background: transparent; cursor: pointer; color: #fff;
}
.nav-toggle span {
  position: absolute; left: 11px; width: 22px; height: 2px; background: currentColor;
  transition: transform 400ms var(--ease-out), opacity 200ms;
}
.nav-toggle span:nth-child(1) { top: 16px; }
.nav-toggle span:nth-child(2) { top: 21px; }
.nav-toggle span:nth-child(3) { top: 26px; }
.menu-open .nav-toggle span:nth-child(1) { transform: translateY(5px) rotate(45deg); }
.menu-open .nav-toggle span:nth-child(2) { opacity: 0; }
.menu-open .nav-toggle span:nth-child(3) { transform: translateY(-5px) rotate(-45deg); }

.mobile-menu {
  position: fixed; inset: 0; z-index: 99; background: var(--charcoal-2); color: #fff;
  display: flex; flex-direction: column; justify-content: center; padding: var(--s-4xl) var(--s-xl) var(--s-2xl);
  clip-path: inset(0 0 100% 0); visibility: hidden;
  transition: clip-path 600ms var(--ease-io), visibility 0s linear 600ms;
}
.menu-open .mobile-menu { clip-path: inset(0 0 0 0); visibility: visible; transition: clip-path 600ms var(--ease-io), visibility 0s; }
.mobile-menu ul { list-style: none; margin: 0; padding: 0; }
.mobile-menu li { overflow: hidden; border-bottom: 1px solid var(--line-dark); }
.mobile-menu a {
  display: flex; justify-content: space-between; align-items: center;
  padding: 18px 0; text-decoration: none;
  font: 800 clamp(30px, 9vw, 44px)/1 var(--font-display); letter-spacing: -0.02em;
  transform: translateY(110%); transition: transform 600ms var(--ease-out);
}
.mobile-menu a small { font: 600 13px var(--font-body); color: var(--steel-light); letter-spacing: 0.1em; }
.menu-open .mobile-menu a { transform: none; }
.menu-open .mobile-menu li:nth-child(1) a { transition-delay: 150ms; }
.menu-open .mobile-menu li:nth-child(2) a { transition-delay: 210ms; }
.menu-open .mobile-menu li:nth-child(3) a { transition-delay: 270ms; }
.menu-open .mobile-menu li:nth-child(4) a { transition-delay: 330ms; }
.menu-open .mobile-menu li:nth-child(5) a { transition-delay: 390ms; }
.mobile-menu .mm-foot { margin-top: var(--s-2xl); display: grid; gap: var(--s-sm); color: var(--steel-light); font-size: 15px; opacity: 0; transition: opacity 400ms 450ms; }
.menu-open .mobile-menu .mm-foot { opacity: 1; }
.mobile-menu .mm-foot a { font: inherit; transform: none; padding: 0; display: inline; color: #fff; }
body.menu-open { overflow: hidden; }

/* ---------- Door component ---------- */
/* Markup is generated by site.js from <div class="door" data-door="classic">. */
.door {
  --door-face: #3A3B3F;
  --door-face-2: #26272A;
  --door-frame: #1A1B1D;
  position: relative; aspect-ratio: 1 / 2.05; width: 100%;
  perspective: 1400px;
}
.door-frame {
  position: absolute; inset: 0;
  background: var(--door-frame);
  border-radius: 3px;
  padding: 5.5% 6% 0;
  box-shadow: 0 30px 60px -30px rgba(0,0,0,0.55), inset 0 0 0 1px rgba(255,255,255,0.05);
  transform-style: preserve-3d;
}
.door-light {
  position: absolute; inset: 5.5% 6% 0;
  background:
    radial-gradient(120% 70% at 30% 55%, #FFF6E8 0%, #F2E3C8 35%, #C9B48E 70%, #8A7A5E 100%);
}
.door-leaf {
  position: absolute; inset: 5.5% 6% 0;
  transform-origin: 0 50%;
  transform: rotateY(var(--open, 0deg));
  transform-style: preserve-3d;
  transition: transform 900ms var(--ease-out);
  will-change: transform;
}
.door-face {
  position: absolute; inset: 0; overflow: hidden;
  background: linear-gradient(100deg, var(--door-face) 0%, var(--door-face-2) 100%);
  backface-visibility: hidden;
  box-shadow: inset 0 0 0 1px rgba(255,255,255,0.06);
}
.door-face::before, .door-face::after { content: ""; position: absolute; }
/* brushed-steel sheen sweep */
.door-sheen {
  position: absolute; inset: 0; pointer-events: none;
  background: linear-gradient(105deg, transparent 30%, rgba(255,255,255,0.10) 45%, transparent 60%);
  transform: translateX(-120%);
  transition: transform 1100ms var(--ease-out);
}
.door-handle {
  position: absolute; right: 9%; top: 47%; width: 5%; height: 15%;
  background: linear-gradient(90deg, #8E8F94, #D9DADC 50%, #7C7D82);
  border-radius: 6px;
  box-shadow: -2px 3px 6px rgba(0,0,0,0.45);
}
.door-knob {
  position: absolute; right: 9.6%; top: 64%; width: 3.6%; aspect-ratio: 1; border-radius: 50%;
  background: var(--red);
  box-shadow: 0 0 0 2px rgba(0,0,0,0.25);
}
.door-floor {
  position: absolute; left: -12%; right: -12%; bottom: -1px; height: 8%;
  background: radial-gradient(60% 100% at 50% 0%, rgba(0,0,0,0.35), transparent 70%);
  transform: translateY(100%);
  pointer-events: none;
}

/* hover / open states */
.door-host:hover .door-leaf, .door-host:focus-within .door-leaf { --open: -32deg; }
.door-host:hover .door-sheen { transform: translateX(120%); }

/* face patterns */
.door[data-door="classic"] .door-face::before,
.door[data-door="classic"] .door-face::after {
  left: 14%; right: 14%; border: 2px solid rgba(255,255,255,0.08);
  box-shadow: inset 0 0 0 6px rgba(0,0,0,0.18), inset 0 0 0 8px rgba(255,255,255,0.05), 0 0 0 1px rgba(0,0,0,0.3);
}
.door[data-door="classic"] .door-face::before { top: 7%; height: 38%; }
.door[data-door="classic"] .door-face::after { top: 52%; height: 41%; }

.door[data-door="modern"] { --door-face: #2E2F33; --door-face-2: #1C1D20; }
.door[data-door="modern"] .door-face::before {
  inset: 10% 10% 10% 10%;
  background: repeating-linear-gradient(0deg, transparent 0 22px, rgba(0,0,0,0.35) 22px 24px, rgba(255,255,255,0.06) 24px 25px);
}
.door[data-door="modern"] .door-face::after { top: 10%; bottom: 10%; left: 6%; width: 1.6%; background: var(--red); opacity: 0.9; }

.door[data-door="wood"] { --door-face: #6B4A33; --door-face-2: #4A3222; }
.door[data-door="wood"] .door-face::before {
  inset: 0;
  background:
    repeating-linear-gradient(90deg, rgba(0,0,0,0.0) 0 9px, rgba(0,0,0,0.12) 9px 10px, rgba(255,255,255,0.03) 10px 18px),
    repeating-linear-gradient(90deg, transparent 0 60px, rgba(0,0,0,0.25) 60px 62px);
}
.door[data-door="wood"] .door-face::after { left: 16%; right: 16%; top: 18%; height: 30%; border: 2px solid rgba(255,255,255,0.12); box-shadow: inset 0 0 0 6px rgba(0,0,0,0.15); }

.door[data-door="standard"] .door-face::before { inset: 8% 12% 8% 12%; border: 2px solid rgba(255,255,255,0.07); box-shadow: inset 0 0 0 1px rgba(0,0,0,0.35); }

.door[data-door="acoustic"] { --door-face: #44454A; --door-face-2: #2C2D31; }
.door[data-door="acoustic"] .door-face::before {
  inset: 8% 12%;
  background: repeating-linear-gradient(90deg, transparent 0 12px, rgba(0,0,0,0.35) 12px 14px, rgba(255,255,255,0.06) 14px 15px);
}

.door[data-door="economy"] { --door-face: #5A5B60; --door-face-2: #44454A; }
.door[data-door="economy"] .door-face::before { left: 0; right: 0; top: 50%; height: 2px; background: rgba(0,0,0,0.3); box-shadow: 0 1px 0 rgba(255,255,255,0.06); }

.door[data-door="industrial"] { --door-face: #4B4C51; --door-face-2: #2F3034; --door-frame: #121314; }
.door[data-door="industrial"] .door-face::before {
  inset: 0;
  background:
    radial-gradient(circle, rgba(255,255,255,0.22) 1.5px, transparent 2px) 0 0 / 100% 22px repeat-y,
    repeating-linear-gradient(45deg, transparent 0 14px, rgba(0,0,0,0.12) 14px 16px);
  background-position: 6% 0, 0 0;
}
.door[data-door="industrial"] .door-face::after { left: 0; right: 0; top: 34%; height: 8%; background: rgba(0,0,0,0.25); box-shadow: 0 1px 0 rgba(255,255,255,0.06), 0 -1px 0 rgba(0,0,0,0.3); }

.door[data-door="office"] { --door-face: #2B2C30; --door-face-2: #202124; }
.door[data-door="office"] .door-face::before {
  top: 6%; bottom: 6%; left: 14%; width: 18%;
  background: linear-gradient(180deg, rgba(200,215,225,0.45), rgba(150,165,175,0.25));
  box-shadow: inset 0 0 0 2px rgba(0,0,0,0.4);
}

.door[data-door="security"] { --door-face: #303135; --door-face-2: #18191B; --door-frame: #0E0F10; }
.door[data-door="security"] .door-frame { padding: 8% 9% 0; }
.door[data-door="security"] .door-light, .door[data-door="security"] .door-leaf { inset: 8% 9% 0; }
.door[data-door="security"] .door-face::before {
  inset: 6% 8%; border: 3px solid rgba(255,255,255,0.08);
  box-shadow: inset 0 0 0 10px rgba(0,0,0,0.25), inset 0 0 0 12px rgba(255,255,255,0.05);
}
.door[data-door="security"] .door-face::after {
  inset: 6% 8%;
  background: radial-gradient(circle, rgba(255,255,255,0.25) 2px, transparent 2.5px) 50% 0 / 100% 20% no-repeat,
              radial-gradient(circle, rgba(255,255,255,0.25) 2px, transparent 2.5px) 50% 100% / 100% 20% no-repeat;
}

/* stage that holds a door in cards */
.door-stage {
  position: relative; overflow: hidden;
  background:
    linear-gradient(180deg, #DEDBD5 0%, #E9E7E2 72%, #CFCBC3 72%, #D8D4CD 100%);
  display: grid; place-items: end center;
  padding: 9% 0 7%;
}
.door-stage .door { width: 34%; }
.door-stage--dark { background: linear-gradient(180deg, #2F3034 0%, #26272A 72%, #1C1D1F 72%, #222326 100%); }

/* ---------- Hero ---------- */
.hero {
  position: relative; min-height: 100svh; background: var(--charcoal); color: #fff;
  display: flex; align-items: center; overflow: hidden;
  padding: calc(var(--header-h) + var(--s-2xl)) 0 var(--s-3xl);
}
.hero::before {
  content: ""; position: absolute; inset: 0; pointer-events: none;
  background:
    radial-gradient(80% 60% at 75% 40%, rgba(255,255,255,0.06), transparent 60%),
    repeating-linear-gradient(90deg, rgba(255,255,255,0.025) 0 1px, transparent 1px 120px);
}
.hero-grid { position: relative; display: grid; grid-template-columns: 1.15fr 0.85fr; gap: var(--s-3xl); align-items: center; width: 100%; }
.hero-copy { position: relative; z-index: 2; }
.hero .h-xl { margin-bottom: var(--s-xl); }
.hero .lede { margin-bottom: var(--s-2xl); }
.cta-row { display: flex; gap: var(--s-md); flex-wrap: wrap; }

.hero-door-wrap { position: relative; display: grid; place-items: center; }
.hero-door { width: min(330px, 70%); }
.hero-door .door-frame { box-shadow: 0 60px 120px -40px rgba(0,0,0,0.8), 0 0 0 1px rgba(255,255,255,0.06); }
.hero-glow {
  position: absolute; left: 50%; bottom: -6%; width: 140%; height: 46%; transform: translateX(-50%);
  background: radial-gradient(50% 50% at 50% 50%, rgba(255, 236, 205, calc(var(--glow, 0) * 0.35)), transparent 70%);
  pointer-events: none; filter: blur(6px);
}
.hero-badge {
  position: absolute; z-index: 3; left: -8%; bottom: 14%;
  background: var(--bg); color: var(--charcoal);
  padding: 14px 18px; border-radius: var(--r-md);
  box-shadow: 0 20px 40px -20px rgba(0,0,0,0.6);
  display: flex; align-items: center; gap: 12px;
}
.hero-badge strong { font: 900 34px/1 var(--font-display); letter-spacing: -0.03em; }
.hero-badge span { font-size: 12px; font-weight: 600; line-height: 1.3; color: var(--steel); }
.hero-scroll {
  position: absolute; left: 50%; bottom: 22px; transform: translateX(-50%);
  display: flex; flex-direction: column; align-items: center; gap: 8px;
  font-size: 11px; font-weight: 700; letter-spacing: 0.2em; color: var(--steel-light); text-transform: uppercase;
}
.hero-scroll i { width: 1px; height: 38px; background: linear-gradient(var(--steel-light), transparent); position: relative; overflow: hidden; }
.hero-scroll i::after { content: ""; position: absolute; left: 0; top: -40%; width: 1px; height: 40%; background: #fff; animation: scrollcue 1.8s var(--ease-io) infinite; }
@keyframes scrollcue { to { top: 100%; } }

/* ---------- Split text reveal ---------- */
[data-split] .w { display: inline-block; overflow: hidden; vertical-align: top; padding-bottom: 0.08em; margin-bottom: -0.08em; }
[data-split] .w > span { display: inline-block; transform: translateY(105%); transition: transform 900ms var(--ease-out); transition-delay: calc(var(--d, 0) * 60ms + 120ms); }
[data-split].is-in .w > span { transform: none; }

/* ---------- Generic reveals ---------- */
.js [data-reveal] { opacity: 0; transform: translateY(28px); transition: opacity 800ms var(--ease-out), transform 800ms var(--ease-out); transition-delay: calc(var(--i, 0) * 90ms); }
.js [data-reveal="left"] { transform: translateX(-36px); }
.js [data-reveal="right"] { transform: translateX(36px); }
.js [data-reveal="scale"] { transform: scale(0.94); }
.js [data-reveal="fade"] { transform: none; }
.js [data-reveal].is-in { opacity: 1; transform: none; }
.js .line-grow { transform: scaleX(0); transform-origin: 0 50%; transition: transform 1200ms var(--ease-out); }
.js .line-grow.is-in { transform: scaleX(1); }

/* image-style curtain reveal for media blocks */

.js [data-curtain]::after {
  content: ""; position: absolute; inset: -1px; z-index: 5; pointer-events: none;
  background: var(--bg); transform-origin: 50% 0; transition: transform 1100ms var(--ease-io);
}
.js [data-curtain].is-in::after { transform: scaleY(0); }

/* ---------- Marquee ---------- */
.marquee {
  background: var(--bg); border-block: 1px solid var(--border);
  overflow: hidden; padding: var(--s-xl) 0; white-space: nowrap;
}
.marquee-track { display: inline-flex; gap: var(--s-2xl); will-change: transform; }
.marquee-item {
  display: inline-flex; align-items: center; gap: var(--s-2xl);
  font: 900 clamp(38px, 6vw, 84px)/1 var(--font-display); letter-spacing: -0.03em; text-transform: uppercase;
  color: transparent; -webkit-text-stroke: 1.5px var(--charcoal);
}
.marquee-item:nth-child(even) { color: var(--charcoal); -webkit-text-stroke: 0; }
.marquee-item i { width: 14px; height: 14px; background: var(--red); flex: none; }

/* ---------- Pillars (Neden KayaDoor) ---------- */
.pillars { display: grid; grid-template-columns: repeat(5, 1fr); border-top: 1px solid var(--border); }
.pillar {
  position: relative; padding: var(--s-xl) var(--s-lg) var(--s-2xl) 0;
  border-right: 1px solid var(--border);
}
.pillar + .pillar { padding-left: var(--s-lg); }
.pillar:last-child { border-right: 0; }
.pillar::before {
  content: ""; position: absolute; left: 0; right: 0; top: -1px; height: 2px; background: var(--charcoal);
  transform: scaleX(0); transform-origin: 0 50%; transition: transform 700ms var(--ease-out);
}
.pillar:hover::before { transform: scaleX(1); }
.pillar .num { font: 800 13px var(--font-body); color: var(--red); letter-spacing: 0.1em; }
.pillar h3 { font-size: 24px; margin: var(--s-lg) 0 var(--s-sm); }
.pillar p { font-size: 15px; color: var(--steel); }

/* ---------- Category tiles ---------- */
.cat-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: var(--s-lg); }
.cat-tile {
  position: relative; display: block; text-decoration: none; color: var(--charcoal);
  background: var(--card); border-radius: var(--r-lg); overflow: hidden;
  border: 1px solid var(--border);
  transition: transform 500ms var(--ease-out), box-shadow 500ms var(--ease-out);
}
.cat-tile:hover { transform: translateY(-6px); box-shadow: 0 30px 50px -30px rgba(41,42,45,0.35); }
.cat-tile .door-stage { aspect-ratio: 4 / 4.2; }
.cat-tile .door-stage .door { width: 30%; }
.cat-body { padding: var(--s-lg); display: flex; justify-content: space-between; align-items: flex-end; gap: var(--s-md); }
.cat-body small { display: block; font-size: 12px; font-weight: 700; letter-spacing: 0.12em; text-transform: uppercase; color: var(--steel); margin-bottom: 6px; }
.cat-body h3 { font-size: 26px; }
.cat-arrow {
  flex: none; width: 44px; height: 44px; border-radius: 50%; border: 1.5px solid var(--border);
  display: grid; place-items: center; transition: background 300ms, border-color 300ms, color 300ms, transform 400ms var(--ease-out);
}
.cat-arrow svg { width: 18px; height: 18px; }
.cat-tile:hover .cat-arrow { background: var(--charcoal); border-color: var(--charcoal); color: #fff; transform: rotate(-45deg); }

/* ---------- Process (pinned horizontal on desktop) ---------- */
.process { background: var(--charcoal); color: #fff; position: relative; }
.process-pin { position: relative; }
.process-inner { padding: var(--s-5xl) 0; }
.process-head { margin-bottom: var(--s-3xl); }
.process-track { display: flex; gap: var(--s-lg); }
.step {
  flex: 0 0 min(380px, 80vw);
  background: var(--charcoal-3); border: 1px solid var(--line-dark);
  border-radius: var(--r-lg); padding: var(--s-xl);
  min-height: 300px; display: flex; flex-direction: column; justify-content: space-between;
}
.step .n { font: 900 88px/0.85 var(--font-display); letter-spacing: -0.04em; color: transparent; -webkit-text-stroke: 1.5px rgba(255,255,255,0.28); }
.step h3 { font-size: 28px; margin: var(--s-xl) 0 var(--s-sm); }
.step p { color: var(--steel-light); font-size: 15px; }
.process-bar { margin-top: var(--s-2xl); height: 2px; background: var(--line-dark); position: relative; }
.process-bar i { position: absolute; inset: 0; background: var(--red); transform-origin: 0 50%; transform: scaleX(var(--p, 0)); }

.process.is-pinned .process-pin { height: var(--pin-h, 300vh); }
.process.is-pinned .process-sticky { position: sticky; top: 0; height: 100vh; display: flex; align-items: center; overflow: hidden; }
.process.is-pinned .process-inner { padding-top: 0; padding-bottom: 0; width: 100%; }
.process.is-pinned .process-track { will-change: transform; }
.process:not(.is-pinned) .process-track { overflow-x: auto; scroll-snap-type: x mandatory; padding-bottom: var(--s-md); scrollbar-width: none; }
.process:not(.is-pinned) .process-track::-webkit-scrollbar { display: none; }
.process:not(.is-pinned) .step { scroll-snap-align: start; }

/* ---------- Reference cards ---------- */
.ref-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: var(--s-lg); }
.ref-card {
  background: var(--card); border: 1px solid var(--border); border-radius: var(--r-lg); overflow: hidden;
  display: flex; flex-direction: column;
  transition: transform 500ms var(--ease-out), box-shadow 500ms var(--ease-out);
}
.ref-card:hover { transform: translateY(-6px); box-shadow: 0 30px 50px -30px rgba(41,42,45,0.35); }
.blueprint {
  position: relative; aspect-ratio: 16 / 10; overflow: hidden;
  background:
    linear-gradient(rgba(41,42,45,0.07) 1px, transparent 1px) 0 0 / 24px 24px,
    linear-gradient(90deg, rgba(41,42,45,0.07) 1px, transparent 1px) 0 0 / 24px 24px,
    var(--bg-2);
  display: grid; place-items: center;
}
.blueprint .mono {
  font: 900 clamp(64px, 8vw, 112px)/1 var(--font-display); letter-spacing: -0.05em;
  color: transparent; -webkit-text-stroke: 1.5px rgba(41,42,45,0.35);
  transition: transform 800ms var(--ease-out);
}
.ref-card:hover .blueprint .mono { transform: scale(1.08); }
.blueprint .bp-tag {
  position: absolute; left: 14px; top: 14px; font-size: 11px; font-weight: 700; letter-spacing: 0.12em; text-transform: uppercase;
  background: var(--charcoal); color: #fff; padding: 6px 10px; border-radius: var(--r-sm);
}
.ref-body { padding: var(--s-lg); display: flex; flex-direction: column; gap: var(--s-sm); flex: 1; }
.ref-body h3 { font-size: 22px; }
.ref-body p { color: var(--steel); font-size: 15px; }
.ref-meta { margin-top: auto; padding-top: var(--s-md); display: flex; gap: var(--s-sm); flex-wrap: wrap; }
.ref-meta span { font-size: 12px; font-weight: 600; color: var(--charcoal); background: var(--bg-2); padding: 5px 10px; border-radius: var(--r-sm); }

/* ---------- Stats ---------- */
.stats { display: grid; grid-template-columns: repeat(3, 1fr); border-block: 1px solid var(--border); }
.stat { padding: var(--s-2xl) var(--s-lg); border-right: 1px solid var(--border); }
.stat:last-child { border-right: 0; }
.stat strong { display: block; font: 900 clamp(52px, 7vw, 96px)/0.9 var(--font-display); letter-spacing: -0.04em; }
.stat span { display: block; margin-top: var(--s-sm); color: var(--steel); font-weight: 600; font-size: 14px; }

/* ---------- CTA band ---------- */
.cta-band { background: var(--charcoal-2); color: #fff; overflow: hidden; position: relative; }
.cta-band .wrap { position: relative; z-index: 1; display: grid; grid-template-columns: 1.3fr 0.7fr; gap: var(--s-2xl); align-items: end; }
.cta-band .h-lg { max-width: 14ch; }
.cta-band .cta-row { justify-content: flex-end; }
.cta-band .bg-mark {
  position: absolute; right: -4%; top: 50%; width: min(520px, 50vw); transform: translateY(-50%);
  color: rgba(255,255,255,0.035); pointer-events: none;
}
.cta-band .bg-mark .m-knob { fill: rgba(227, 30, 61, 0.25); }

/* ---------- Page hero (sub pages) ---------- */
.page-hero {
  position: relative; background: var(--charcoal); color: #fff; overflow: hidden;
  padding: calc(var(--header-h) + var(--s-4xl)) 0 var(--s-4xl);
}
.page-hero::before {
  content: ""; position: absolute; inset: 0; pointer-events: none;
  background: repeating-linear-gradient(90deg, rgba(255,255,255,0.025) 0 1px, transparent 1px 120px);
}
.page-hero .wrap { position: relative; }
.crumbs { display: flex; gap: 8px; font-size: 13px; color: var(--steel-light); margin-bottom: var(--s-xl); }
.crumbs a { color: var(--steel-light); text-decoration: none; }
.crumbs a:hover { color: #fff; }
.page-hero .h-xl { max-width: 16ch; }
.page-hero .lede { margin-top: var(--s-lg); }
.page-hero .cta-row { margin-top: var(--s-xl); }
.page-hero .ph-mark {
  position: absolute; right: 2%; bottom: -18%; width: min(420px, 40vw); color: rgba(255,255,255,0.04); pointer-events: none;
}
.page-hero .ph-mark .m-knob { fill: rgba(227,30,61,0.35); }

/* ---------- Product listing ---------- */
.cat-nav {
  position: sticky; top: 64px; z-index: 50; background: rgba(245,244,242,0.92);
  backdrop-filter: blur(10px); -webkit-backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--border);
  transition: top 450ms var(--ease-out);
}
.header-hidden .cat-nav { top: 0; }
.cat-nav ul { list-style: none; margin: 0; padding: 0; display: flex; gap: var(--s-xl); overflow-x: auto; scrollbar-width: none; }
.cat-nav ul::-webkit-scrollbar { display: none; }
.cat-nav a {
  display: block; padding: 18px 0; white-space: nowrap; text-decoration: none; font-weight: 700; font-size: 14px; color: var(--steel);
  position: relative;
}
.cat-nav a::after { content: ""; position: absolute; left: 0; right: 0; bottom: -1px; height: 2px; background: var(--charcoal); transform: scaleX(0); transform-origin: 0 50%; transition: transform 400ms var(--ease-out); }
.cat-nav a.is-active { color: var(--charcoal); }
.cat-nav a.is-active::after { transform: scaleX(1); }
.cat-nav a sup { font-size: 11px; color: var(--steel); margin-left: 4px; }

.cat-section { scroll-margin-top: 140px; }
.cat-section + .cat-section { border-top: 1px solid var(--border); }
.cat-head { display: grid; grid-template-columns: 0.4fr 1fr; gap: var(--s-2xl); margin-bottom: var(--s-3xl); align-items: end; }
.cat-head .idx { font: 900 clamp(72px, 10vw, 140px)/0.8 var(--font-display); letter-spacing: -0.05em; color: transparent; -webkit-text-stroke: 1.5px rgba(41,42,45,0.25); }

.product-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: var(--s-lg); }
.product-card {
  background: var(--card); border: 1px solid var(--border); border-radius: var(--r-lg); overflow: hidden;
  display: flex; flex-direction: column;
  transition: transform 500ms var(--ease-out), box-shadow 500ms var(--ease-out);
}
.product-card:hover { transform: translateY(-6px); box-shadow: 0 30px 50px -30px rgba(41,42,45,0.35); }
.product-card .door-stage { aspect-ratio: 4 / 3.6; }
.product-card .door-stage .door { width: 27%; }
.product-body { padding: var(--s-lg); display: flex; flex-direction: column; flex: 1; }
.product-body .code { font-size: 12px; font-weight: 700; letter-spacing: 0.12em; text-transform: uppercase; color: var(--steel); }
.product-body h3 { font-size: 24px; margin: 6px 0 var(--s-sm); }
.product-body > p { color: var(--steel); font-size: 15px; }
.specs { list-style: none; margin: var(--s-lg) 0; padding: 0; border-top: 1px solid var(--border); }
.specs li { display: flex; align-items: center; gap: 10px; padding: 10px 0; border-bottom: 1px solid var(--border); font-size: 14px; font-weight: 500; }
.specs li::before { content: ""; width: 6px; height: 6px; background: var(--charcoal); flex: none; }
.product-body .link-arrow { margin-top: auto; align-self: flex-start; }

/* ---------- About ---------- */
.story-grid { display: grid; grid-template-columns: 1.1fr 0.9fr; gap: var(--s-4xl); align-items: start; }
.story-text p { font-size: 18px; color: var(--steel); margin-bottom: var(--s-lg); max-width: 60ch; }
.story-text p:first-child { font: 700 clamp(22px, 2.2vw, 30px)/1.3 var(--font-display); color: var(--charcoal); letter-spacing: -0.015em; }
.story-visual { position: sticky; top: 120px; }
.story-visual .door-stage { aspect-ratio: 4 / 5; border-radius: var(--r-lg); }
.story-visual .door-stage .door { width: 36%; }

.values { display: grid; grid-template-columns: repeat(5, 1fr); gap: var(--s-md); }
.value {
  background: var(--card); border: 1px solid var(--border); border-radius: var(--r-lg);
  padding: var(--s-lg); min-height: 260px; display: flex; flex-direction: column;
  transition: background 400ms, color 400ms, transform 500ms var(--ease-out);
}
.value .num { font: 800 13px var(--font-body); color: var(--red); letter-spacing: 0.1em; }
.value h3 { font-size: 22px; margin: auto 0 var(--s-sm); padding-top: var(--s-2xl); }
.value p { font-size: 14px; color: var(--steel); transition: color 400ms; }
.value:hover { background: var(--charcoal); color: #fff; transform: translateY(-6px); }
.value:hover p { color: var(--steel-light); }

.reasons { list-style: none; margin: 0; padding: 0; display: grid; grid-template-columns: 1fr 1fr; column-gap: var(--s-2xl); }
.reasons li { display: flex; gap: var(--s-md); align-items: flex-start; padding: var(--s-lg) 0; border-bottom: 1px solid var(--border); font-size: 17px; font-weight: 500; }
.reasons li svg { flex: none; width: 22px; height: 22px; margin-top: 2px; color: var(--charcoal); }

/* ---------- Contact ---------- */
.contact-grid { display: grid; grid-template-columns: 0.9fr 1.1fr; gap: var(--s-3xl); align-items: start; }
.quick { display: grid; gap: var(--s-md); }
.quick a {
  display: flex; align-items: center; gap: var(--s-lg); text-decoration: none;
  background: var(--card); border: 1px solid var(--border); border-radius: var(--r-lg); padding: var(--s-lg);
  transition: transform 400ms var(--ease-out), border-color 300ms, box-shadow 400ms;
}
.quick a:hover { transform: translateX(6px); border-color: var(--charcoal); box-shadow: 0 20px 40px -30px rgba(0,0,0,0.4); }
.quick .ic { width: 52px; height: 52px; flex: none; border-radius: var(--r-md); background: var(--charcoal); color: #fff; display: grid; place-items: center; }
.quick .ic svg { width: 22px; height: 22px; }
.quick .ic--wa { background: var(--red); }
.quick small { display: block; font-size: 12px; font-weight: 700; letter-spacing: 0.12em; text-transform: uppercase; color: var(--steel); }
.quick strong { font: 800 22px/1.2 var(--font-display); letter-spacing: -0.01em; }
.quick .go { margin-left: auto; color: var(--steel); transition: transform 400ms var(--ease-out); }
.quick a:hover .go { transform: translateX(4px); color: var(--charcoal); }
.contact-note { margin-top: var(--s-xl); padding: var(--s-lg); border-left: 2px solid var(--charcoal); color: var(--steel); font-size: 15px; }

.form-card { background: var(--card); border: 1px solid var(--border); border-radius: var(--r-lg); padding: var(--s-2xl); }
.form-card h2 { font-size: 32px; }
.form-card .sub { color: var(--steel); margin: var(--s-sm) 0 var(--s-xl); }
.field { position: relative; margin-bottom: var(--s-lg); }
.field label { display: block; font-size: 13px; font-weight: 700; margin-bottom: 8px; }
.field input, .field select, .field textarea {
  width: 100%; font: 500 16px var(--font-body); color: var(--charcoal);
  background: var(--bg); border: 1.5px solid var(--border); border-radius: var(--r-md);
  padding: 14px 16px; min-height: 52px;
  transition: border-color 250ms, background 250ms, box-shadow 250ms;
}
.field textarea { min-height: 130px; resize: vertical; }
.field input:focus, .field select:focus, .field textarea:focus { outline: none; border-color: var(--charcoal); background: #fff; box-shadow: 0 0 0 4px rgba(41,42,45,0.08); }
.field-row { display: grid; grid-template-columns: 1fr 1fr; gap: var(--s-md); }
.form-note { font-size: 13px; color: var(--steel); margin-top: var(--s-md); }
.form-card .btn { width: 100%; }

/* ---------- Footer ---------- */
.site-footer { overflow: hidden; background: var(--charcoal-2); color: var(--steel-light); padding: var(--s-4xl) 0 var(--s-xl); font-size: 15px; }
.footer-top { display: grid; grid-template-columns: 1.4fr 1fr 1fr; gap: var(--s-2xl); padding-bottom: var(--s-3xl); border-bottom: 1px solid var(--line-dark); }
.footer-brand { color: #fff; display: grid; gap: 14px; justify-items: start; }
.footer-brand .kd-mark { height: 56px; width: auto; }
.footer-brand .kd-word { height: 22px; width: auto; }
.footer-brand .kd-tag { height: 11px; width: auto; color: var(--steel-light); }
.footer-brand p { max-width: 36ch; margin-top: var(--s-sm); }
.site-footer h4 { font: 700 12px var(--font-body); letter-spacing: 0.14em; text-transform: uppercase; color: #fff; margin-bottom: var(--s-lg); }
.site-footer ul { list-style: none; margin: 0; padding: 0; display: grid; gap: 10px; }
.site-footer a { color: var(--steel-light); text-decoration: none; transition: color 200ms; }
.site-footer a:hover { color: #fff; }
.footer-bottom { display: flex; justify-content: space-between; gap: var(--s-md); padding-top: var(--s-xl); font-size: 13px; flex-wrap: wrap; }
.footer-big {
  font: 900 clamp(60px, 16vw, 230px)/0.8 var(--font-display); letter-spacing: -0.05em;
  color: transparent; -webkit-text-stroke: 1px rgba(255,255,255,0.08);
  margin-top: var(--s-3xl); white-space: nowrap; user-select: none;
}

/* ---------- Mobile action bar ---------- */
.action-bar { display: none; }

/* ---------- Page transitions ---------- */
@view-transition { navigation: auto; }
::view-transition-old(root) { animation: 260ms var(--ease-in) both vt-out; }
::view-transition-new(root) { animation: 520ms var(--ease-out) both vt-in; }
::view-transition-group(site-header) { animation: none; }
@keyframes vt-out { to { opacity: 0; transform: translateY(-12px); } }
@keyframes vt-in { from { opacity: 0; transform: translateY(24px); } }

.page-curtain {
  position: fixed; inset: 0; z-index: 150; background: var(--charcoal-2); pointer-events: none;
  transform-origin: 50% 0; transform: scaleY(0);
}
.page-curtain.is-leaving { transition: transform 450ms var(--ease-io); transform-origin: 50% 100%; transform: scaleY(1); }

/* ---------- Responsive ---------- */
@media (max-width: 1100px) {
  .pillars { grid-template-columns: repeat(3, 1fr); }
  .pillar:nth-child(3) { border-right: 0; }
  .pillar:nth-child(4) { padding-left: 0; }
  .pillar:nth-child(n+4) { border-top: 1px solid var(--border); }
  .values { grid-template-columns: repeat(3, 1fr); }
}
@media (max-width: 1023px) {
  .nav-links, .nav-cta { display: none; }
  .nav-toggle { display: block; }
  .hero-grid { grid-template-columns: 1fr; gap: var(--s-2xl); }
  .hero-door-wrap { order: -1; }
  .hero-door { width: min(170px, 36vw); }
  .hero { padding-top: calc(var(--header-h) + var(--s-lg)); }
  .hero-scroll { display: none; }
  .hero-badge { left: 4%; bottom: 10%; }
  .hero { align-items: flex-end; }
  .cat-grid, .ref-grid, .product-grid { grid-template-columns: 1fr 1fr; }
  .cta-band .wrap { grid-template-columns: 1fr; }
  .cta-band .cta-row { justify-content: flex-start; }
  .story-grid, .contact-grid { grid-template-columns: 1fr; gap: var(--s-2xl); }
  .story-visual { position: relative; top: 0; }
  .footer-top { grid-template-columns: 1fr 1fr; }
  .footer-brand { grid-column: 1 / -1; }
  .cat-head { grid-template-columns: 1fr; gap: var(--s-md); }
}
@media (max-width: 767px) {
  :root { --header-h: 64px; }
  .wrap { padding: 0 var(--s-lg); }
  .section { padding: var(--s-4xl) 0; }
  .section--tight { padding: var(--s-3xl) 0; }
  .section-head { margin-bottom: var(--s-2xl); }
  .pillars { grid-template-columns: 1fr; }
  .pillar, .pillar + .pillar { padding: var(--s-lg) 0; border-right: 0; border-top: 1px solid var(--border); }
  .pillar:first-child { border-top: 0; }
  .pillar h3 { margin-top: var(--s-sm); }
  .cat-grid, .ref-grid, .product-grid, .values { grid-template-columns: 1fr; }
  .value { min-height: 0; }
  .value h3 { padding-top: var(--s-lg); }
  .reasons { grid-template-columns: 1fr; }
  .stats { grid-template-columns: 1fr; }
  .stat { border-right: 0; border-bottom: 1px solid var(--border); padding: var(--s-xl) 0; }
  .stat:last-child { border-bottom: 0; }
  .cta-row .btn { flex: 1 1 100%; }
  .hero .cta-row .btn { flex: 1 1 0; padding: 0 14px; }
  .field-row { grid-template-columns: 1fr; gap: 0; }
  .form-card { padding: var(--s-lg); }
  .footer-top { grid-template-columns: 1fr; }
  .cat-nav { top: 64px; }
  .site-footer { padding-bottom: calc(var(--s-xl) + 76px); }

  .action-bar {
    display: grid; grid-template-columns: 1fr 1fr; gap: 8px;
    position: fixed; left: 12px; right: 12px; bottom: 12px; z-index: 90;
    padding: 8px; border-radius: 14px; background: rgba(30,31,33,0.94);
    backdrop-filter: blur(10px); -webkit-backdrop-filter: blur(10px);
    box-shadow: 0 20px 40px -10px rgba(0,0,0,0.5);
    transform: translateY(140%); transition: transform 500ms var(--ease-out);
  }
  .action-bar.is-visible { transform: none; }
  .action-bar .btn { min-height: 48px; font-size: 14px; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation-duration: 0.001ms !important; animation-iteration-count: 1 !important; transition-duration: 0.001ms !important; transition-delay: 0ms !important; }
  .js [data-reveal], [data-split] .w > span { opacity: 1 !important; transform: none !important; }
  .js [data-curtain]::after { display: none; }
  @view-transition { navigation: none; }
}

/* fade-in for browsers without cross-document view transitions */
.no-vt body { animation: page-in 600ms var(--ease-out) both; }
@keyframes page-in { from { opacity: 0; } }