/* ============================================================
   TOP DOORS — Premium design system
   Palette: black / white / light brown / light grey / dark green accent
   ============================================================ */

:root {
  /* Core palette */
  --black:        #0d0d0f;
  --ink:          #17181c;
  --white:        #ffffff;
  --paper:        #f6f5f2;
  --grey-100:     #eceae5;
  --grey-200:     #d9d6cf;
  --grey-300:     #b8b4ab;
  --grey-500:     #6f6c66;
  --grey-700:     #3a3a3c;

  --brown:        #b79b7d;   /* light brown */
  --brown-soft:   #d8c6b0;
  --brown-deep:   #8a6f52;

  --green:        #1f3d33;   /* dark green accent */
  --green-mid:    #2e5748;
  --green-soft:   #6f8f81;

  /* Semantic */
  --bg:           var(--paper);
  --surface:      var(--white);
  --text:         var(--ink);
  --muted:        var(--grey-500);
  --line:         var(--grey-200);
  --accent:       var(--green);
  --accent-2:     var(--brown);

  /* Type */
  --font-display: "Cormorant Garamond", "Times New Roman", serif;
  --font-body:    "Manrope", "Segoe UI", system-ui, sans-serif;

  /* Rhythm */
  --maxw: 1240px;
  --gap: clamp(1rem, 3vw, 2.5rem);
  --radius: 4px;
  --ease: cubic-bezier(0.16, 1, 0.3, 1);
  --shadow: 0 24px 60px -24px rgba(13,13,15,.35);
  --shadow-sm: 0 8px 24px -14px rgba(13,13,15,.4);
}

/* ---------- Reset ---------- */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body {
  font-family: var(--font-body);
  color: var(--text);
  background: var(--bg);
  line-height: 1.6;
  font-weight: 400;
  overflow-x: hidden;
  letter-spacing: .01em;
}
img, svg { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }
button { font: inherit; cursor: pointer; border: none; background: none; color: inherit; }
ul { list-style: none; }
input, textarea, select { font: inherit; color: inherit; }

/* ---------- Typography ---------- */
h1, h2, h3 { font-family: var(--font-display); font-weight: 600; line-height: 1.05; letter-spacing: -0.01em; }
.eyebrow {
  font-family: var(--font-body);
  font-size: .72rem; font-weight: 600;
  letter-spacing: .28em; text-transform: uppercase;
  color: var(--accent-2);
}
.section-title { font-size: clamp(2rem, 5vw, 3.4rem); }
.lead { font-size: clamp(1.05rem, 1.6vw, 1.25rem); color: var(--muted); max-width: 60ch; }

/* ---------- Layout ---------- */
.container { width: 100%; max-width: var(--maxw); margin-inline: auto; padding-inline: clamp(1.25rem, 4vw, 3rem); }
.section { padding-block: clamp(4rem, 9vw, 8rem); }
.section--tight { padding-block: clamp(3rem, 6vw, 5rem); }
.center { text-align: center; }
.mt-1{margin-top:.5rem}.mt-2{margin-top:1rem}.mt-3{margin-top:1.5rem}.mt-4{margin-top:2.5rem}

/* ============================================================
   Header / Nav
   ============================================================ */
.site-header {
  position: sticky; top: 0; z-index: 100;
  background: color-mix(in srgb, var(--paper) 82%, transparent);
  backdrop-filter: blur(14px);
  border-bottom: 1px solid transparent;
  transition: border-color .4s var(--ease), background .4s var(--ease);
}
.site-header.scrolled { border-bottom-color: var(--line); }
.nav { display: flex; align-items: center; justify-content: space-between; height: 74px; gap: 2rem; }
.brand { display: flex; align-items: center; gap: .7rem; font-family: var(--font-display); font-size: 1.4rem; font-weight: 600; letter-spacing: .02em; }
.brand__mark { width: 30px; height: 30px; flex: none; }
.brand small { display:block; font-family:var(--font-body); font-size:.56rem; letter-spacing:.34em; text-transform:uppercase; color:var(--muted); font-weight:600; margin-top:2px;}
.nav__links { display: flex; align-items: center; gap: 2.2rem; }
.nav__links a { font-size: .82rem; font-weight: 600; letter-spacing: .04em; text-transform: uppercase; position: relative; padding-block: 4px; color: var(--grey-700); transition: color .3s; }
.nav__links a::after { content:""; position:absolute; left:0; bottom:-2px; width:0; height:1.5px; background: var(--accent); transition: width .35s var(--ease); }
.nav__links a:hover, .nav__links a[aria-current="page"] { color: var(--text); }
.nav__links a:hover::after, .nav__links a[aria-current="page"]::after { width: 100%; }
.nav__cta { display: inline-flex; }
.nav__burger { display: none; width: 40px; height: 40px; flex-direction: column; justify-content: center; gap: 5px; align-items: center; }
.nav__burger span { width: 22px; height: 2px; background: var(--text); transition: .3s var(--ease); }

/* ---------- Buttons ---------- */
.btn { display: inline-flex; align-items: center; justify-content: center; gap: .6rem;
  padding: .85rem 1.6rem; font-size: .8rem; font-weight: 700; letter-spacing: .08em; text-transform: uppercase;
  border-radius: var(--radius); transition: transform .3s var(--ease), background .3s, color .3s, box-shadow .3s; white-space: nowrap; }
.btn--primary { background: var(--green); color: #f4f1ea; box-shadow: var(--shadow-sm); }
.btn--primary:hover { background: var(--green-mid); transform: translateY(-2px); }
.btn--dark { background: var(--black); color: var(--white); }
.btn--dark:hover { background: var(--ink); transform: translateY(-2px); }
.btn--ghost { border: 1.5px solid var(--grey-300); color: var(--text); }
.btn--ghost:hover { border-color: var(--text); background: var(--text); color: var(--paper); }
.btn--brown { background: var(--brown); color: var(--black); }
.btn--brown:hover { background: var(--brown-deep); color: var(--white); transform: translateY(-2px); }
.btn--lg { padding: 1.05rem 2.2rem; font-size: .85rem; }
.btn--block { width: 100%; }
.btn .arw { transition: transform .3s var(--ease); }
.btn:hover .arw { transform: translateX(4px); }

/* ============================================================
   HERO with animated door
   ============================================================ */
.hero { position: relative; overflow: hidden; background: radial-gradient(120% 100% at 80% 0%, #fbfaf7 0%, var(--paper) 55%, #ece9e3 100%); }
.hero__grid { display: grid; grid-template-columns: 1.05fr .95fr; align-items: center; gap: clamp(1rem, 4vw, 3rem); min-height: calc(100vh - 74px); padding-block: clamp(2rem,5vw,4rem); }
.hero__content { max-width: 34rem; }
.hero__title { font-size: clamp(2.6rem, 6.4vw, 5.2rem); line-height: .98; }
.hero__title .accent { color: var(--brown-deep); font-style: italic; }
.hero__sub { margin-top: 1.5rem; font-size: clamp(1.02rem, 1.5vw, 1.2rem); color: var(--muted); max-width: 44ch; }
.hero__actions { display: flex; flex-wrap: wrap; gap: .9rem; margin-top: 2.4rem; }
.hero__stats { display: flex; gap: 2.4rem; margin-top: 3rem; padding-top: 2rem; border-top: 1px solid var(--line); }
.hero__stat b { font-family: var(--font-display); font-size: 2.2rem; font-weight: 600; display: block; line-height: 1; }
.hero__stat span { font-size: .72rem; letter-spacing: .12em; text-transform: uppercase; color: var(--muted); }

/* Door stage */
.door-stage { position: relative; display: flex; align-items: center; justify-content: center; min-height: 60vh; perspective: 3400px; perspective-origin: 50% 50%; }
.door-stage__glow { position: absolute; inset: 8% 12%; background: radial-gradient(circle at 50% 40%, rgba(31,61,51,.16), transparent 70%); filter: blur(30px); }
.door-scene {
  position: relative; width: min(300px, 62vw); aspect-ratio: 300/560;
  transform-style: preserve-3d;
  --door-thick: clamp(12px, 3vw, 20px);
}
/* Frame (architrave / casing) around the doorway — layered molding */
.door-frame {
  position: absolute; inset: 0;
  background: linear-gradient(150deg, #e3dfd7 0%, #cbc7be 52%, #b2aea5 100%);
  border-radius: 9px 9px 4px 4px;
  box-shadow:
    inset 0 0 0 1px rgba(0,0,0,.10),
    inset 0 3px 6px rgba(255,255,255,.55),
    inset 0 -8px 16px rgba(0,0,0,.10);
}
/* inner casing step of the architrave */
.door-frame::before {
  content:""; position: absolute; inset: 1.7%;
  border-radius: 6px;
  background: linear-gradient(150deg, #d4d0c8, #beb9b0);
  box-shadow: inset 0 0 0 1px rgba(255,255,255,.45), 0 1px 3px rgba(0,0,0,.16);
}
/* Doorway opening — reveals the corridor; box-shadow rings form the jamb molding */
.door-opening {
  position: absolute; inset: 4%;
  background: #241f15;
  border-radius: 3px;
  overflow: hidden;
  box-shadow:
    0 0 0 2px #aca79d,                         /* recessed reveal line */
    0 0 0 4px #e0dcd4,                          /* bright inner lip */
    0 0 0 5px rgba(0,0,0,.12),
    inset 0 0 40px 8px rgba(0,0,0,.55),         /* interior depth */
    inset 16px 0 26px -8px rgba(0,0,0,.55);     /* hinge-side jamb shadow */
}
.corridor { position: absolute; inset: 0; width: 100%; height: 100%; }
/* warm light spilling out — grows as the door opens */
.door-opening::after {
  content:""; position:absolute; inset:0; border-radius:3px; pointer-events:none;
  background: radial-gradient(80% 60% at 60% 42%, rgba(255,214,140,.28), transparent 70%);
  opacity: .5; transition: opacity 2.4s var(--ease);
}
.door-scene.is-open .door-opening::after { opacity: 1; }
/* warm glow cast in front of the doorway when open */
.door-scene::after {
  content:""; position:absolute; left:14%; right:-6%; bottom:2%; height:44%;
  background: radial-gradient(60% 100% at 40% 100%, rgba(240,190,120,.34), transparent 72%);
  opacity: 0; transition: opacity 2s var(--ease) .3s; pointer-events:none; filter: blur(8px);
}
.door-scene.is-open::after { opacity: 1; }

/* The door — hinged on the left, opens on load. Real 3D volume via faces. */
.door-leaf {
  position: absolute; inset: 4%;
  transform-origin: left center;
  transform: rotateY(0deg);
  transition: transform 2.6s var(--ease);
  transform-style: preserve-3d;
  will-change: transform;
  cursor: pointer;
}
.door-scene.is-open .door-leaf { transform: rotateY(-60deg); }
/* front face (flat plane — safe to carry the drop-shadow) */
.door-leaf__face {
  position: absolute; inset: 0;
  transform: translateZ(calc(var(--door-thick) / 2));
  filter: drop-shadow(-14px 16px 20px rgba(28,18,6,.28));
  backface-visibility: hidden;
}
.door-leaf__face svg { width: 100%; height: 100%; border-radius: 2px; }
/* face shading — the leaf turns away from the light as it opens */
.door-leaf__face::after {
  content:""; position:absolute; inset:0; border-radius:2px;
  background: linear-gradient(90deg, rgba(18,12,4,.42), rgba(18,12,4,0) 52%);
  opacity: 0; transition: opacity 2.6s var(--ease); pointer-events:none;
}
.door-scene.is-open .door-leaf__face::after { opacity: 1; }
/* opening-side thickness (right / latch edge) — gives real volume */
.door-leaf__edge {
  position: absolute; top: 1px; right: 0; height: calc(100% - 2px); width: var(--door-thick);
  transform-origin: right center; transform: rotateY(90deg);
  background: linear-gradient(90deg, #cbc7bf 0%, #a8a399 55%, #8a857a 100%);
  border-radius: 2px;
}

/* ---- Realistic protruding 3D lever handle (graphite, matches the locks) ---- */
.door-handle {
  position: absolute; top: 50.5%; right: 13%;
  width: 0; height: 0;
  transform-style: preserve-3d;
  transform: translateY(-50%) translateZ(calc(var(--door-thick) / 2 + 1px));
  pointer-events: none;
}
/* round rosette flat on the door */
.door-handle__rose {
  position: absolute; left: -11px; top: -11px;
  width: 22px; height: 22px; border-radius: 50%;
  background: linear-gradient(160deg, #4a4a43 0%, #2a2a25 65%, #201f1b 100%);
  box-shadow: 0 3px 6px rgba(0,0,0,.35), inset 0 1px 1px rgba(255,255,255,.22);
  transform: translateZ(1px);
}
/* spindle neck emerging from the rosette — dead centre */
.door-handle__rose::after {
  content:""; position:absolute; left:50%; top:50%;
  width:12px; height:12px; border-radius:50%;
  margin:-6px 0 0 -6px;
  background: radial-gradient(circle at 40% 34%, #63635b, #26261f 78%);
  transform: translateZ(6px);
}
/* neck stem — bridges the gap between rosette and lever along the Z axis */
.door-handle__neck {
  position: absolute; top: -5px; left: -1px;
  width: 11px; height: 10px; border-radius: 3px;
  transform-origin: left center;
  transform: translateZ(1px) rotateY(-90deg);   /* extends from door face toward the lever */
  background: linear-gradient(180deg, #606058 0%, #3a3a34 50%, #26261f 100%);
  box-shadow: inset 0 1px 1px rgba(255,255,255,.25), inset 0 -1px 1px rgba(0,0,0,.4);
}

/* the lever grip — perfectly horizontal cylindrical bar */
.door-handle__lever {
  position: absolute; top: -5.5px; left: -46px;
  width: 50px; height: 11px; border-radius: 5.5px;
  background: linear-gradient(180deg, #6d6d66 0%, #42423c 45%, #232320 100%);
  box-shadow:
    0 10px 9px rgba(0,0,0,.32),              /* straight cast shadow below */
    inset 0 1.5px 1px rgba(255,255,255,.45), /* top rim highlight (cylinder) */
    inset 0 -1.5px 2px rgba(0,0,0,.45);      /* bottom shade (cylinder) */
  transform: translateZ(10px);
}
/* specular streak along the top of the grip */
.door-handle__lever::before {
  content:""; position:absolute; left:7px; right:10px; top:2px; height:1.8px; border-radius:2px;
  background: linear-gradient(90deg, rgba(255,255,255,.12), rgba(255,255,255,.5), rgba(255,255,255,.08));
}
/* rounded tip cap, flush with the bar */
.door-handle__lever::after {
  content:""; position:absolute; left:-1px; top:0; width:12px; height:11px; border-radius:5.5px;
  background: linear-gradient(180deg, #75756c 0%, #3a3a34 60%, #232320 100%);
}

.door-hint { position: absolute; bottom: -2.6rem; left: 50%; transform: translateX(-50%); font-size: .72rem; letter-spacing: .18em; text-transform: uppercase; color: var(--muted); display: flex; align-items: center; gap: .6rem; white-space: nowrap; }
.door-hint .dot { width: 7px; height: 7px; border-radius: 50%; background: var(--green-soft); animation: pulse 2s infinite; }
@keyframes pulse { 0%,100%{opacity:.4; transform:scale(.8)} 50%{opacity:1; transform:scale(1.15)} }

/* Marquee ribbon */
.ribbon { background: var(--black); color: var(--paper); overflow: hidden; }
.ribbon__track { display: flex; gap: 3rem; padding-block: .9rem; white-space: nowrap; animation: marquee 28s linear infinite; }
.ribbon__track span { font-size: .78rem; letter-spacing: .22em; text-transform: uppercase; display: inline-flex; align-items: center; gap: 3rem; color: var(--grey-300); }
.ribbon__track span::before { content:"◆"; color: var(--brown); }
@keyframes marquee { to { transform: translateX(-50%); } }

/* ============================================================
   Feature cards / values
   ============================================================ */
.grid { display: grid; gap: clamp(1rem, 2.5vw, 1.8rem); }
.grid--3 { grid-template-columns: repeat(3, 1fr); }
.grid--2 { grid-template-columns: repeat(2, 1fr); }
.grid--4 { grid-template-columns: repeat(4, 1fr); }

.card { background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius); padding: clamp(1.6rem, 3vw, 2.4rem); transition: transform .4s var(--ease), box-shadow .4s var(--ease), border-color .4s; }
.card:hover { transform: translateY(-6px); box-shadow: var(--shadow); border-color: transparent; }
.card__icon { width: 46px; height: 46px; color: var(--green); margin-bottom: 1.2rem; }
.card h3 { font-size: 1.5rem; }
.card p { color: var(--muted); margin-top: .6rem; font-size: .96rem; }
.card__num { font-family: var(--font-display); font-size: 2.6rem; color: var(--brown); line-height: 1; }

/* Split section */
.split { display: grid; grid-template-columns: 1fr 1fr; gap: clamp(2rem, 6vw, 5rem); align-items: center; }
.split__media { position: relative; border-radius: var(--radius); overflow: hidden; background: var(--grey-100); aspect-ratio: 4/3.4; box-shadow: var(--shadow); }
.split__media .door-illustration { width: 100%; height: 100%; }

/* ============================================================
   Catalog
   ============================================================ */
.catalog-toolbar { display: flex; flex-wrap: wrap; gap: .6rem; margin-bottom: 2.5rem; }
.chip { padding: .55rem 1.15rem; border: 1px solid var(--line); border-radius: 100px; font-size: .78rem; font-weight: 600; letter-spacing: .04em; color: var(--grey-700); background: var(--surface); transition: .3s var(--ease); }
.chip:hover { border-color: var(--grey-300); }
.chip.active { background: var(--green); color: #f2efe8; border-color: var(--green); }

.product-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: clamp(1rem, 2vw, 1.6rem); }
.product { background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius); overflow: hidden; transition: transform .4s var(--ease), box-shadow .4s var(--ease); display: flex; flex-direction: column; }
.product:hover { transform: translateY(-6px); box-shadow: var(--shadow); }
.product__media { position: relative; aspect-ratio: 3/4; background: linear-gradient(160deg, #f2f0ec, #e4e1da); display: flex; align-items: center; justify-content: center; padding: 1.4rem; overflow: hidden; }
.product__media svg { height: 100%; width: auto; filter: drop-shadow(0 18px 30px rgba(0,0,0,.18)); transition: transform .6s var(--ease); }
.product:hover .product__media svg { transform: translateY(-4px) scale(1.02); }
.product__media img { height: 100%; width: auto; object-fit: contain; filter: drop-shadow(0 20px 30px rgba(0,0,0,.22)); transition: transform .6s var(--ease); }
.product:hover .product__media img { transform: translateY(-4px) scale(1.03); }
.product__media.photo { padding: 0; background: linear-gradient(160deg, #f4f2ee, #e6e3dc); }
.product__tag { position: absolute; top: 1rem; left: 1rem; background: var(--black); color: var(--paper); font-size: .64rem; letter-spacing: .14em; text-transform: uppercase; padding: .35rem .7rem; border-radius: 3px; }
.product__tag.green { background: var(--green); }
.product__tag.brown { background: var(--brown); color: var(--black); }
.product__tag.red { background: #8e3b2f; }
.product__body { padding: 1.3rem 1.4rem 1.5rem; display: flex; flex-direction: column; flex: 1; }
.product__body h3 { font-size: 1.5rem; }
.product__desc { color: var(--muted); font-size: .86rem; line-height: 1.5; margin: .5rem 0 .2rem; }
.product__meta { display: flex; gap: 1.2rem; margin: .6rem 0 1rem; font-size: .78rem; color: var(--muted); flex-wrap: wrap; }
.product__meta span { display: inline-flex; align-items: center; gap: .35rem; }
.product__price { font-family: var(--font-body); font-size: .82rem; font-weight: 700; letter-spacing: .08em; text-transform: uppercase; color: var(--brown-deep); margin-top: auto; }
.product__cta { margin-top: 1rem; }

/* ============================================================
   Steps / process
   ============================================================ */
.steps { counter-reset: step; display: grid; gap: 0; }
.step { display: grid; grid-template-columns: auto 1fr; gap: 1.6rem; padding: 2rem 0; border-top: 1px solid var(--line); align-items: start; }
.step:last-child { border-bottom: 1px solid var(--line); }
.step__num { counter-increment: step; font-family: var(--font-display); font-size: 1.4rem; color: var(--brown); width: 54px; height: 54px; border: 1px solid var(--line); border-radius: 50%; display: grid; place-items: center; flex: none; }
.step__num::before { content: "0" counter(step); }
.step h3 { font-size: 1.6rem; }
.step p { color: var(--muted); margin-top: .4rem; max-width: 60ch; }

/* ============================================================
   Forms
   ============================================================ */
.form-card { background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius); padding: clamp(1.6rem, 4vw, 3rem); box-shadow: var(--shadow-sm); }
.form-card.dark { background: var(--ink); color: var(--paper); border-color: #2a2b30; }
.form-card.dark .field label { color: var(--grey-300); }
.form-card.dark .field input, .form-card.dark .field textarea, .form-card.dark .field select { background: #202127; border-color: #34353b; color: var(--paper); }
.form-card.dark .field input:focus, .form-card.dark .field textarea:focus, .form-card.dark .field select:focus { border-color: var(--green-soft); }

.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 1rem; }
.field { margin-bottom: 1.1rem; }
.field label { display: block; font-size: .74rem; font-weight: 600; letter-spacing: .06em; text-transform: uppercase; color: var(--grey-700); margin-bottom: .45rem; }
.field input, .field textarea, .field select {
  width: 100%; padding: .85rem 1rem; background: var(--paper); border: 1px solid var(--line);
  border-radius: var(--radius); transition: border-color .3s, box-shadow .3s; font-size: .95rem;
}
.field textarea { min-height: 120px; resize: vertical; }
.field input:focus, .field textarea:focus, .field select:focus { outline: none; border-color: var(--green); box-shadow: 0 0 0 3px rgba(31,61,51,.1); }
.field input:user-invalid, .field textarea:user-invalid { border-color: #b4453a; }
.field .err { display: none; color: #b4453a; font-size: .74rem; margin-top: .35rem; }
.field.invalid .err { display: block; }
.field.invalid input, .field.invalid textarea { border-color: #b4453a; }
.form-note { font-size: .78rem; color: var(--muted); margin-top: .4rem; }
.form-success { display: none; text-align: center; padding: 1rem 0; }
.form-success.show { display: block; animation: fadeUp .5s var(--ease); }
.form-success svg { width: 60px; height: 60px; color: var(--green); margin: 0 auto 1rem; }
.form-success h3 { font-size: 1.8rem; }
.form-success p { color: var(--muted); margin-top: .5rem; }

/* Calculator */
.calc { display: grid; grid-template-columns: 1.1fr .9fr; gap: clamp(1.5rem, 4vw, 3rem); align-items: start; }
.calc__result { position: sticky; top: 100px; background: var(--green); color: #eef1ec; border-radius: var(--radius); padding: clamp(1.6rem, 3vw, 2.4rem); box-shadow: var(--shadow); }
.calc__result .eyebrow { color: var(--brown-soft); }
.calc__total { font-family: var(--font-display); font-size: clamp(2.4rem, 5vw, 3.4rem); line-height: 1; margin: 1rem 0; }
.calc__total small { font-size: 1rem; font-family: var(--font-body); color: var(--green-soft); letter-spacing: .04em; }
.calc__lines { border-top: 1px solid rgba(255,255,255,.14); padding-top: 1.2rem; }
.calc__line { display: flex; justify-content: space-between; padding: .5rem 0; font-size: .9rem; color: #cdd6d0; }
.calc__line b { color: #fff; font-weight: 600; }
.calc__disclaimer { font-size: .74rem; color: var(--green-soft); margin-top: 1.2rem; line-height: 1.5; }
.range-field output { float: right; font-weight: 700; color: var(--green); }
.form-card.dark .range-field output { color: var(--brown-soft); }
input[type="range"] { -webkit-appearance: none; appearance: none; width: 100%; height: 4px; background: var(--line); border-radius: 4px; margin-top: .8rem; }
input[type="range"]::-webkit-slider-thumb { -webkit-appearance: none; width: 20px; height: 20px; border-radius: 50%; background: var(--green); cursor: pointer; box-shadow: 0 2px 8px rgba(0,0,0,.25); }
input[type="range"]::-moz-range-thumb { width: 20px; height: 20px; border: none; border-radius: 50%; background: var(--green); cursor: pointer; }

/* seg control */
.seg { display: flex; gap: .5rem; flex-wrap: wrap; }
.seg label { flex: 1; min-width: 90px; }
.seg input { position: absolute; opacity: 0; pointer-events: none; }
.seg span { display: block; text-align: center; padding: .7rem .5rem; border: 1px solid var(--line); border-radius: var(--radius); font-size: .84rem; font-weight: 600; transition: .25s var(--ease); background: var(--paper); }
.seg input:checked + span { background: var(--green); color: #f2efe8; border-color: var(--green); }
.seg input:focus-visible + span { box-shadow: 0 0 0 3px rgba(31,61,51,.2); }

/* ============================================================
   Contacts / Map
   ============================================================ */
.contact-grid { display: grid; grid-template-columns: 1fr 1.2fr; gap: clamp(1.5rem, 4vw, 3.5rem); }
.info-list { display: grid; gap: 1.4rem; }
.info-item { display: grid; grid-template-columns: auto 1fr; gap: 1rem; align-items: start; padding-bottom: 1.4rem; border-bottom: 1px solid var(--line); }
.info-item:last-child { border-bottom: none; }
.info-item .ic { width: 40px; height: 40px; border-radius: 50%; background: color-mix(in srgb, var(--green) 10%, transparent); color: var(--green); display: grid; place-items: center; flex: none; }
.info-item .ic svg { width: 20px; height: 20px; }
.info-item small { font-size: .72rem; letter-spacing: .12em; text-transform: uppercase; color: var(--muted); }
.info-item p { font-size: 1.1rem; font-weight: 600; margin-top: 2px; }
.map-wrap { border-radius: var(--radius); overflow: hidden; border: 1px solid var(--line); box-shadow: var(--shadow-sm); }
.map-wrap iframe { display: block; width: 100%; border: 0; }

/* ============================================================
   CTA band
   ============================================================ */
.cta-band { background: var(--black); color: var(--paper); border-radius: var(--radius); padding: clamp(2.5rem, 6vw, 4.5rem); position: relative; overflow: hidden; }
.cta-band::before { content:""; position:absolute; right:-10%; top:-40%; width: 50%; height: 180%; background: radial-gradient(circle, rgba(31,61,51,.5), transparent 65%); }
.cta-band__inner { position: relative; display: flex; align-items: center; justify-content: space-between; gap: 2rem; flex-wrap: wrap; }
.cta-band h2 { font-size: clamp(1.8rem, 4vw, 3rem); max-width: 20ch; }
.cta-band p { color: var(--grey-300); margin-top: .6rem; }

/* ============================================================
   Footer
   ============================================================ */
.site-footer { background: var(--ink); color: var(--grey-300); padding-block: clamp(3rem, 6vw, 5rem) 2rem; }
.footer-grid { display: grid; grid-template-columns: 1.6fr 1fr 1fr 1fr; gap: 2rem; padding-bottom: 3rem; border-bottom: 1px solid #2a2b30; }
.site-footer .brand { color: var(--paper); }
.site-footer h4 { color: var(--paper); font-family: var(--font-body); font-size: .74rem; letter-spacing: .16em; text-transform: uppercase; margin-bottom: 1.1rem; }
.site-footer li { margin-bottom: .6rem; }
.site-footer a:hover { color: var(--brown-soft); }
.footer-bottom { display: flex; justify-content: space-between; gap: 1rem; flex-wrap: wrap; padding-top: 1.6rem; font-size: .8rem; color: var(--grey-500); }

/* ============================================================
   Page hero (interior pages)
   ============================================================ */
.page-hero { background: linear-gradient(160deg, #1a1b1f, #0d0d0f); color: var(--paper); padding-block: clamp(3.5rem, 8vw, 6rem); position: relative; overflow: hidden; }
.page-hero::after { content:""; position:absolute; right:-5%; bottom:-60%; width:40%; height:200%; background: radial-gradient(circle, rgba(183,155,125,.16), transparent 60%); }
.page-hero .breadcrumb { font-size: .74rem; letter-spacing: .1em; text-transform: uppercase; color: var(--grey-500); margin-bottom: 1.2rem; }
.page-hero .breadcrumb a:hover { color: var(--brown-soft); }
.page-hero h1 { font-size: clamp(2.4rem, 6vw, 4.4rem); max-width: 18ch; }
.page-hero p { color: var(--grey-300); margin-top: 1.2rem; max-width: 52ch; font-size: 1.1rem; }

/* ============================================================
   Reveal on scroll
   ============================================================ */
.reveal { opacity: 0; transform: translateY(28px); transition: opacity .8s var(--ease), transform .8s var(--ease); }
.reveal.in { opacity: 1; transform: none; }
[data-delay="1"]{transition-delay:.08s}[data-delay="2"]{transition-delay:.16s}[data-delay="3"]{transition-delay:.24s}[data-delay="4"]{transition-delay:.32s}
@keyframes fadeUp { from{opacity:0;transform:translateY(14px)} to{opacity:1;transform:none} }

/* ============================================================
   Responsive
   ============================================================ */
@media (max-width: 980px) {
  .hero__grid { grid-template-columns: 1fr; text-align: left; }
  .door-stage { min-height: 52vh; order: -1; }
  .grid--3, .grid--4 { grid-template-columns: repeat(2, 1fr); }
  .product-grid { grid-template-columns: repeat(2, 1fr); }
  .split, .calc, .contact-grid { grid-template-columns: 1fr; }
  .calc__result { position: static; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 720px) {
  .nav__links, .nav__cta { position: fixed; }
  .nav__links { inset: 74px 0 auto 0; flex-direction: column; background: var(--paper); padding: 1.5rem 2rem 2rem; gap: 1.2rem; align-items: flex-start; border-bottom: 1px solid var(--line); transform: translateY(-105%); opacity: 0; visibility: hidden; transition: transform .4s var(--ease), opacity .3s var(--ease), visibility 0s linear .4s; box-shadow: var(--shadow); }
  body.nav-open .nav__links { transform: none; opacity: 1; visibility: visible; transition: transform .4s var(--ease), opacity .3s var(--ease); }
  body.nav-open .nav__burger span:nth-child(1){ transform: translateY(7px) rotate(45deg); }
  body.nav-open .nav__burger span:nth-child(2){ opacity: 0; }
  body.nav-open .nav__burger span:nth-child(3){ transform: translateY(-7px) rotate(-45deg); }
  .nav__burger { display: flex; }
  .nav .nav__cta.desktop { display: none; }
  .grid--3, .grid--4, .grid--2, .product-grid { grid-template-columns: 1fr; }
  .form-row { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; }
  .hero__stats { gap: 1.4rem; }
  .cta-band__inner { flex-direction: column; align-items: flex-start; }
}

@media (prefers-reduced-motion: reduce) {
  .door-scene .door-leaf { transition: none; }
  .reveal { transition: none; opacity: 1; transform: none; }
  .ribbon__track { animation: none; }
}

/* ============================================================
   Product detail page (PDP)
   ============================================================ */
.pdp { display: grid; grid-template-columns: 1fr 1fr; gap: clamp(1.5rem, 4vw, 3.5rem); align-items: start; }
.gallery { position: sticky; top: 96px; }
.gallery__main { position: relative; background: linear-gradient(160deg, #f4f2ee, #e6e3dc); border: 1px solid var(--line); border-radius: var(--radius); aspect-ratio: 3/4; display: flex; align-items: center; justify-content: center; overflow: hidden; cursor: zoom-in; }
.gallery__main img { height: 100%; width: auto; object-fit: contain; filter: drop-shadow(0 22px 34px rgba(0,0,0,.22)); transition: transform .5s var(--ease); }
.gallery__main:hover img { transform: scale(1.03); }
.gallery__zoom-hint { position: absolute; bottom: 12px; right: 12px; background: rgba(13,13,15,.7); color: #fff; font-size: .68rem; letter-spacing: .1em; text-transform: uppercase; padding: .4rem .7rem; border-radius: 3px; display: inline-flex; gap: .4rem; align-items: center; pointer-events: none; }
.gallery__thumbs { display: flex; gap: .6rem; margin-top: .8rem; flex-wrap: wrap; }
.thumb { width: 68px; height: 88px; border: 1px solid var(--line); border-radius: 3px; background: linear-gradient(160deg, #f4f2ee, #e6e3dc); padding: 4px; cursor: pointer; transition: border-color .25s, transform .25s; overflow: hidden; }
.thumb img { width: 100%; height: 100%; object-fit: contain; }
.thumb:hover { transform: translateY(-2px); }
.thumb.active { border-color: var(--green); box-shadow: 0 0 0 1px var(--green); }

.pdp-cat { display: inline-block; font-size: .68rem; font-weight: 700; letter-spacing: .16em; text-transform: uppercase; color: var(--brown-deep); background: color-mix(in srgb, var(--brown) 16%, transparent); padding: .35rem .8rem; border-radius: 100px; }
.pdp-title { font-size: clamp(2rem, 5vw, 3.2rem); margin-top: .8rem; }
.pdp-price { font-size: .84rem; font-weight: 700; letter-spacing: .08em; text-transform: uppercase; color: var(--brown-deep); margin-top: .6rem; }
.pdp-desc { margin-top: 1.4rem; display: grid; gap: .9rem; }
.pdp-desc p { color: var(--grey-700); line-height: 1.7; }
.pdp-desc p:first-child { font-size: 1.08rem; color: var(--text); }
.pdp-actions { display: flex; flex-wrap: wrap; gap: .8rem; margin-top: 1.8rem; }
.pdp-badges { display: flex; flex-wrap: wrap; gap: .5rem; margin-top: 1.6rem; }
.pdp-badge { display: inline-flex; align-items: center; gap: .4rem; font-size: .78rem; color: var(--grey-700); border: 1px solid var(--line); border-radius: 100px; padding: .45rem .9rem; background: var(--surface); }
.pdp-badge b { color: var(--green); }

/* Spec table */
.spec-wrap { margin-top: clamp(2.5rem, 6vw, 4rem); }
.spec-table { width: 100%; border-collapse: collapse; font-size: .9rem; overflow: hidden; border-radius: var(--radius); }
.spec-table th, .spec-table td { border: 1px solid var(--line); padding: .8rem 1rem; vertical-align: top; }
.spec-table th { text-align: left; background: var(--paper); font-weight: 700; width: 34%; color: var(--text); }
.spec-table td { text-align: center; color: var(--grey-700); background: var(--surface); }
.spec-table td.wide { text-align: left; }
.spec-table tr:hover td, .spec-table tr:hover th { background: color-mix(in srgb, var(--brown) 6%, var(--surface)); }

/* Lightbox with zoom */
.lightbox { position: fixed; inset: 0; z-index: 1000; background: rgba(10,10,12,.92); display: none; align-items: center; justify-content: center; padding: 4vh 4vw; opacity: 0; transition: opacity .3s var(--ease); }
.lightbox.open { display: flex; opacity: 1; }
.lightbox__img { max-width: 92vw; max-height: 90vh; object-fit: contain; cursor: zoom-in; transition: transform .3s var(--ease); will-change: transform; user-select: none; }
.lightbox__img.zoomed { cursor: zoom-out; }
.lightbox__close, .lightbox__nav { position: absolute; background: rgba(255,255,255,.1); color: #fff; border: 1px solid rgba(255,255,255,.2); border-radius: 50%; width: 48px; height: 48px; display: grid; place-items: center; font-size: 1.4rem; cursor: pointer; transition: background .25s; backdrop-filter: blur(6px); }
.lightbox__close:hover, .lightbox__nav:hover { background: rgba(255,255,255,.22); }
.lightbox__close { top: 3vh; right: 3vw; }
.lightbox__nav.prev { left: 3vw; top: 50%; transform: translateY(-50%); }
.lightbox__nav.next { right: 3vw; top: 50%; transform: translateY(-50%); }
.lightbox__counter { position: absolute; bottom: 3vh; left: 50%; transform: translateX(-50%); color: rgba(255,255,255,.75); font-size: .8rem; letter-spacing: .1em; }

@media (max-width: 980px) {
  .pdp { grid-template-columns: 1fr; }
  .gallery { position: static; }
  .lightbox__nav { width: 40px; height: 40px; }
}

/* Catalog card links to product pages */
.product__medialink { display: contents; }
.product__body h3 a { color: inherit; transition: color .25s var(--ease); }
.product__body h3 a:hover { color: var(--green); }

/* Tag safety — never wrap/clip catalog tags */
.product__tag { white-space: nowrap; z-index: 3; letter-spacing: .1em; }

/* ============================================================
   Model carousel (homepage split)
   ============================================================ */
.door-carousel { position: relative; width: 100%; height: 100%; border-radius: var(--radius); overflow: hidden; }
.door-carousel__track { display: flex; height: 100%; transition: transform .7s var(--ease); }
.door-slide { position: relative; flex: 0 0 100%; height: 100%; display: flex; align-items: center; justify-content: center; background: linear-gradient(160deg, #f2f0ec, #e2ded6); }
.door-slide img { height: 100%; width: auto; object-fit: contain; filter: drop-shadow(0 22px 34px rgba(0,0,0,.24)); }
.door-slide__name { position: absolute; left: 1.2rem; bottom: 1.2rem; background: rgba(13,13,15,.72); color: #f4f1ea; font-size: .74rem; font-weight: 700; letter-spacing: .14em; text-transform: uppercase; padding: .5rem .9rem; border-radius: 3px; backdrop-filter: blur(4px); }
.door-carousel__btn { position: absolute; top: 50%; transform: translateY(-50%); width: 44px; height: 44px; border-radius: 50%; background: rgba(255,255,255,.85); color: var(--ink); display: grid; place-items: center; font-size: 1.4rem; box-shadow: var(--shadow-sm); transition: background .25s, transform .25s; z-index: 2; }
.door-carousel__btn:hover { background: #fff; }
.door-carousel__btn.prev { left: 12px; }
.door-carousel__btn.next { right: 12px; }
.door-carousel__btn:hover.prev { transform: translateY(-50%) translateX(-2px); }
.door-carousel__btn:hover.next { transform: translateY(-50%) translateX(2px); }
.door-carousel__dots { position: absolute; bottom: 1.2rem; left: 50%; transform: translateX(-50%); display: flex; gap: .5rem; z-index: 2; }
.door-carousel__dots button { width: 8px; height: 8px; border-radius: 50%; background: rgba(13,13,15,.28); transition: background .25s, width .25s; }
.door-carousel__dots button.active { background: var(--green); width: 22px; border-radius: 100px; }

/* Animated door inside the About section */
.about-doorwrap { display: flex; align-items: center; justify-content: center; }
.about-doorwrap .door-stage { min-height: 520px; width: 100%; perspective: 3000px; padding-bottom: 2.4rem; }
.about-doorwrap .door-scene { width: 220px; }
@media (max-width: 980px) { .about-doorwrap .door-stage { min-height: 480px; } }

/* Consent checkboxes in forms */
.consent { margin: .4rem 0 1.2rem; display: grid; gap: .7rem; }
.consent__row { display: grid; grid-template-columns: auto 1fr; gap: .6rem; align-items: start; cursor: pointer; font-size: .82rem; line-height: 1.5; }
.consent__row input { appearance: none; -webkit-appearance: none; width: 18px; height: 18px; margin-top: 1px; border: 1.5px solid var(--grey-300); border-radius: 4px; background: var(--paper); flex: none; cursor: pointer; transition: background .2s, border-color .2s; position: relative; }
.form-card.dark .consent__row input { background: #202127; border-color: #45464d; }
.consent__row input:checked { background: var(--green); border-color: var(--green); }
.consent__row input:checked::after { content: ""; position: absolute; left: 5px; top: 1.5px; width: 5px; height: 9px; border: solid #fff; border-width: 0 2px 2px 0; transform: rotate(45deg); }
.consent__row input:focus-visible { box-shadow: 0 0 0 3px rgba(31,61,51,.25); }
.consent__row span { color: var(--grey-300); }
.form-card:not(.dark) .consent__row span { color: var(--grey-700); }
.consent__row a { color: var(--brown-soft); text-decoration: underline; text-underline-offset: 2px; }
.form-card:not(.dark) .consent__row a { color: var(--brown-deep); }
.consent .err { display: none; color: #e0897f; font-size: .74rem; }
.consent.invalid .err { display: block; }
.form-error { color: #e0897f; font-size: .8rem; margin-top: .8rem; text-align: center; }
.form-error:empty { display: none; }
.consent.invalid .consent__row:first-of-type input { border-color: #d0685e; }

/* ============================================================
   Legal / document pages
   ============================================================ */
.legal { max-width: 820px; margin-inline: auto; }
.legal h2 { font-family: var(--font-body); font-size: 1.15rem; font-weight: 700; margin: 2.2rem 0 .8rem; color: var(--text); }
.legal h2:first-child { margin-top: 0; }
.legal h3 { font-family: var(--font-body); font-size: 1rem; font-weight: 700; margin: 1.4rem 0 .5rem; }
.legal p, .legal li { color: var(--grey-700); line-height: 1.75; font-size: .96rem; }
.legal p { margin-bottom: .9rem; }
.legal ul, .legal ol { margin: 0 0 1.1rem 1.3rem; display: grid; gap: .4rem; }
.legal ul li { list-style: disc; }
.legal ol li { list-style: decimal; }
.legal .legal-meta { color: var(--muted); font-size: .85rem; margin-bottom: 2rem; }
.legal .legal-note { background: color-mix(in srgb, var(--brown) 12%, var(--white)); border: 1px solid var(--brown-soft); border-radius: var(--radius); padding: 1.1rem 1.3rem; font-size: .88rem; color: var(--brown-deep); margin-bottom: 2rem; }
.legal .fill { background: color-mix(in srgb, var(--brown) 22%, transparent); padding: 0 .25em; border-radius: 3px; }

/* Requisites block (contacts) */
.requisites { border-top: 1px solid var(--line); padding-top: 1.4rem; }
.req-title { font-size: .72rem; letter-spacing: .16em; text-transform: uppercase; color: var(--muted); display: block; margin-bottom: .8rem; }
.req-list { display: grid; grid-template-columns: auto 1fr; gap: .35rem 1.2rem; font-size: .85rem; }
.req-list dt { color: var(--muted); }
.req-list dd { color: var(--grey-700); font-weight: 600; }