/* ============================================================
   AERO Lifts — Door Collection Page
   ============================================================ */

/* ── Hero ── */
.door-hero {
  position: relative;
  width: 100%;
  height: 100vh;
  min-height: 600px;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  background: var(--black);
}

.door-hero-bg {
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse 80% 60% at 50% 70%, rgba(255,77,0,0.1) 0%, rgba(255,77,0,0.03) 45%, transparent 70%);
  pointer-events: none;
}

.door-hero-bg::before {
  content: '';
  position: absolute;
  inset: 0;
  background: repeating-linear-gradient(
    90deg,
    rgba(255,255,255,0.015) 0,
    rgba(255,255,255,0.015) 1px,
    transparent 1px,
    transparent 80px
  );
}

.door-hero::after {
  content: '';
  position: absolute;
  bottom: 0; left: 0; right: 0;
  height: 200px;
  background: linear-gradient(to bottom, transparent, var(--black));
  z-index: 1;
  pointer-events: none;
}

.door-hero-inner {
  position: relative;
  z-index: 2;
  text-align: center;
  max-width: 700px;
  padding: 0 40px;
}

.door-hero-eyebrow {
  display: block;
  font-family: var(--font-label);
  font-size: 9px;
  font-weight: 600;
  letter-spacing: 4px;
  text-transform: uppercase;
  color: var(--orange);
  margin-bottom: 20px;
}

.door-hero-title {
  font-family: var(--font-display);
  font-size: clamp(72px, 14vw, 160px);
  line-height: 0.9;
  letter-spacing: 4px;
  color: var(--white);
  margin-bottom: 24px;
}

.door-hero-sub {
  font-family: var(--font-body);
  font-size: clamp(13px, 1.4vw, 16px);
  font-weight: 300;
  color: var(--silver);
  line-height: 1.7;
  max-width: 540px;
  margin: 0 auto 36px;
}

.door-hero-scroll {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  font-family: var(--font-label);
  font-size: 9px;
  letter-spacing: 4px;
  text-transform: uppercase;
  color: var(--silver);
  text-decoration: none;
  transition: color 0.3s;
}

.door-hero-scroll:hover { color: var(--orange); }

.door-hero-line {
  display: block;
  width: 40px;
  height: 1px;
  background: var(--orange);
}

/* ── Grid section ── */
.door-grid-section {
  background: var(--black);
  padding: 80px 0 100px;
}

.door-grid-wrap {
  max-width: 1300px;
  margin: 0 auto;
  padding: 0 60px;
}

.door-grid-header {
  text-align: center;
  margin-bottom: 70px;
}

.door-eyebrow {
  display: block;
  font-family: var(--font-label);
  font-size: 9px;
  font-weight: 600;
  letter-spacing: 4px;
  text-transform: uppercase;
  color: var(--orange);
  margin-bottom: 14px;
}

.door-grid-title {
  font-family: var(--font-display);
  font-size: clamp(40px, 6vw, 80px);
  letter-spacing: 3px;
  color: var(--white);
  line-height: 1;
  margin-bottom: 16px;
}

.door-grid-sub {
  font-family: var(--font-body);
  font-size: 14px;
  font-weight: 300;
  color: var(--silver);
  max-width: 500px;
  margin: 0 auto;
  line-height: 1.7;
}

/* ── Card grid ── */
.door-card-grid {
  display: flex;
  flex-direction: column;
  gap: 3px;
}

/* ── Individual door card ── */
.door-card {
  display: grid;
  grid-template-columns: 400px 1fr;
  min-height: 460px;
  background: var(--charcoal);
  border: 1px solid rgba(255,255,255,0.04);
  transition: border-color 0.4s, opacity 0.7s ease, transform 0.7s ease;
  overflow: hidden;
  position: relative;
  opacity: 0;
  transform: translateY(24px);
}

.door-card.revealed {
  opacity: 1;
  transform: translateY(0);
}

.door-card:nth-child(even) { transition-delay: 0.1s; }
.door-card:nth-child(3n) { transition-delay: 0.15s; }
.door-category-divider { opacity: 1; transform: none; }

.door-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 2px;
  background: var(--orange);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.5s var(--ease-lift);
}

.door-card:hover {
  border-color: rgba(255,77,0,0.2);
}

.door-card:hover::before {
  transform: scaleX(1);
}

.door-card-alt {
  direction: rtl;
}

.door-card-alt > * {
  direction: ltr;
}

/* ── Card visual ── */
.door-card-visual {
  position: relative;
  background: var(--dark);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 40px;
  overflow: hidden;
}

.door-card-visual::after {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse 60% 60% at 50% 50%, rgba(255,77,0,0.04), transparent);
  pointer-events: none;
}

/* ── 3D tilt wrapper ── */
.door-3d-wrap {
  position: relative;
  perspective: 800px;
  cursor: grab;
}

.door-3d-wrap:active {
  cursor: grabbing;
}

.door-3d-inner {
  transition: transform 0.4s cubic-bezier(0.4,0,0.2,1);
  transform-style: preserve-3d;
}

.door-3d-inner:hover {
  filter: drop-shadow(0 20px 40px rgba(0,0,0,0.6));
}

/* ── Photo-based door render (uses real product images) ── */
.door-photo-render {
  position: relative;
  width: 240px;
  height: 360px;
  overflow: hidden;
  border-radius: 2px;
  background: #08080C;
  box-shadow: 0 20px 60px rgba(0,0,0,0.7), 0 0 0 1px rgba(255,255,255,0.06);
}

/* Subtle ambient floor glow */
.door-photo-render::before {
  content: '';
  position: absolute;
  bottom: 0; left: 10%; right: 10%;
  height: 40%;
  background: radial-gradient(ellipse at 50% 100%, rgba(255,77,0,0.07) 0%, transparent 70%);
  pointer-events: none;
  z-index: 2;
  animation: dpi-glow 6s ease-in-out infinite;
}

/* Shimmer sweep */
.door-photo-render::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(105deg, transparent 30%, rgba(255,255,255,0.06) 50%, transparent 70%);
  pointer-events: none;
  z-index: 3;
  animation: dpi-sweep 5s linear infinite;
}

.door-photo-img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: contain;
  object-position: center bottom;
  display: block;
  transition: transform 0.7s cubic-bezier(0.4,0,0.2,1);
  z-index: 1;
}

.door-3d-wrap:hover .door-photo-img {
  transform: scale(1.04);
}

@keyframes dpi-sweep {
  0%   { background-position: -100% 0; }
  100% { background-position: 300% 0; }
}
@keyframes dpi-glow {
  0%, 100% { opacity: 0.7; }
  50%       { opacity: 1; }
}

/* ── Door render base (CSS-rendered doors) ── */
.door-render {
  position: relative;
  width: 220px;
  height: 340px;
  display: flex;
  gap: 5px;
  overflow: hidden;
  border-radius: 2px;
  box-shadow: 0 20px 60px rgba(0,0,0,0.6);
}

.dr-panel {
  flex: 1;
  position: relative;
  overflow: hidden;
  border-radius: 1px;
}

.dr-panel-texture {
  position: absolute;
  inset: 0;
}

.dr-panel-edge {
  position: absolute;
  top: 0; bottom: 0;
  width: 4px;
  background: rgba(255,255,255,0.18);
}

.dr-panel-l .dr-panel-edge { right: 0; }
.dr-panel-r .dr-panel-edge { left: 0; }

.dr-sill {
  position: absolute;
  bottom: 0; left: 0; right: 0;
  height: 14px;
}

.dr-header-beam {
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 18px;
}

.dr-sheen {
  position: absolute;
  inset: 0;
  pointer-events: none;
}

/* ── Rose Gold Hairline — accurate PVD rose gold ── */
.door-render-rosegold-hairline .dr-panel {
  background:
    repeating-linear-gradient(
      90deg,
      #A87258 0px, #D0A07E 0.5px, #C49070 1px,
      #B88068 1.5px, #E0B898 2px, #C8987A 2.5px,
      #B07260 3px, #D8A888 3.5px, #BF8A6A 4px
    ),
    linear-gradient(180deg, #BF8A6A 0%, #D4A07C 50%, #B07258 100%);
  background-blend-mode: multiply;
  box-shadow: inset 0 0 40px rgba(0,0,0,0.45), inset -2px 0 8px rgba(180,120,90,0.2);
}

.door-render-rosegold-hairline .dr-sill {
  background: linear-gradient(90deg, #8A5838, #A86848, #8A5838);
}
.door-render-rosegold-hairline .dr-header-beam {
  background: linear-gradient(90deg, #9A6848, #BC8060, #9A6848);
}
.door-render-rosegold-hairline .dr-sheen {
  background:
    linear-gradient(160deg, rgba(255,220,200,0.18) 0%, transparent 45%),
    linear-gradient(to bottom, rgba(255,200,170,0.08) 0%, transparent 30%, rgba(255,180,150,0.05) 100%);
}

/* ── Rose Gold Mirror — warm reflective PVD ── */
.door-render-rosegold-mirror .dr-panel {
  background: linear-gradient(
    158deg,
    #E8C4A8 0%,
    #C49078 12%,
    #F0D0B8 25%,
    #A87058 38%,
    #D8B098 52%,
    #F4D8C0 66%,
    #BC8868 80%,
    #E4C0A0 90%,
    #D0A280 100%
  );
  box-shadow: inset 0 0 30px rgba(0,0,0,0.25);
}

.door-render-rosegold-mirror .dr-sill {
  background: linear-gradient(90deg, #7A4830, #A06050, #7A4830);
}
.door-render-rosegold-mirror .dr-header-beam {
  background: linear-gradient(90deg, #985C48, #C08068, #985C48);
}
.door-render-rosegold-mirror .dr-sheen {
  background:
    linear-gradient(140deg, rgba(255,230,210,0.35) 0%, transparent 40%),
    linear-gradient(320deg, rgba(255,200,170,0.15) 0%, transparent 40%);
}

/* ── PVD Gold Hairline — true brass-gold tone ── */
.door-render-gold-hairline .dr-panel {
  background:
    repeating-linear-gradient(
      90deg,
      #B09025 0px, #D8B838 0.5px, #C8A830 1px,
      #A88018 1.5px, #E0C840 2px, #D0B030 2.5px,
      #B89022 3px, #DFC035 3.5px, #C5A828 4px
    ),
    linear-gradient(180deg, #C0A028 0%, #D8B832 50%, #B09022 100%);
  background-blend-mode: multiply;
  box-shadow: inset 0 0 40px rgba(0,0,0,0.5), inset -2px 0 8px rgba(160,120,0,0.2);
}

.door-render-gold-hairline .dr-sill {
  background: linear-gradient(90deg, #806010, #A07820, #806010);
}
.door-render-gold-hairline .dr-header-beam {
  background: linear-gradient(90deg, #988018, #C0A028, #988018);
}
.door-render-gold-hairline .dr-sheen {
  background:
    linear-gradient(160deg, rgba(255,240,150,0.2) 0%, transparent 45%),
    linear-gradient(to bottom, rgba(255,230,100,0.10) 0%, transparent 35%);
}

/* ── PVD Gold Mirror — deep reflective champagne gold ── */
.door-render-gold-mirror .dr-panel {
  background: linear-gradient(
    158deg,
    #F0DC70 0%,
    #C0A020 12%,
    #F8E888 25%,
    #987008 38%,
    #E0C848 52%,
    #FFF0A0 66%,
    #C8A828 80%,
    #ECD860 90%,
    #D4B830 100%
  );
  box-shadow: inset 0 0 30px rgba(0,0,0,0.2);
}

.door-render-gold-mirror .dr-sill {
  background: linear-gradient(90deg, #7A5800, #A08010, #7A5800);
}
.door-render-gold-mirror .dr-header-beam {
  background: linear-gradient(90deg, #A09015, #C8B028, #A09015);
}
.door-render-gold-mirror .dr-sheen {
  background:
    linear-gradient(140deg, rgba(255,245,180,0.40) 0%, transparent 40%),
    linear-gradient(320deg, rgba(255,230,80,0.18) 0%, transparent 40%);
}

/* ── Black SS Hairline — PVD matte black ── */
.door-render-black-hairline .dr-panel {
  background:
    repeating-linear-gradient(
      90deg,
      #181818 0px, #262626 0.5px, #1E1E1E 1px,
      #141414 1.5px, #2A2A2A 2px, #202020 2.5px,
      #181818 3px, #282828 3.5px, #1C1C1C 4px
    ),
    linear-gradient(180deg, #202020 0%, #2A2A2A 50%, #181818 100%);
  background-blend-mode: multiply;
  box-shadow: inset 0 0 40px rgba(0,0,0,0.8), inset -2px 0 6px rgba(0,0,0,0.6);
}

.door-render-black-hairline .dr-sill {
  background: linear-gradient(90deg, #0A0A0A, #181818, #0A0A0A);
}
.door-render-black-hairline .dr-header-beam {
  background: linear-gradient(90deg, #141414, #202020, #141414);
}
.door-render-black-hairline .dr-sheen {
  background:
    linear-gradient(160deg, rgba(255,255,255,0.07) 0%, transparent 40%),
    linear-gradient(to bottom, rgba(255,100,0,0.04) 0%, transparent 50%);
}

/* ── Black SS Mirror — piano black ── */
.door-render-black-mirror .dr-panel {
  background: linear-gradient(
    158deg,
    #303030 0%,
    #080808 12%,
    #404040 25%,
    #040404 38%,
    #282828 52%,
    #484848 66%,
    #101010 80%,
    #343434 90%,
    #1A1A1A 100%
  );
  box-shadow: inset 0 0 30px rgba(0,0,0,0.8);
}

.door-render-black-mirror .dr-sill {
  background: linear-gradient(90deg, #080808, #141414, #080808);
}
.door-render-black-mirror .dr-header-beam {
  background: linear-gradient(90deg, #141414, #202020, #141414);
}
.door-render-black-mirror .dr-sheen {
  background:
    linear-gradient(140deg, rgba(255,255,255,0.14) 0%, transparent 35%),
    linear-gradient(320deg, rgba(255,255,255,0.05) 0%, transparent 35%);
}

/* ── Glass door renders ── */
.door-render-glass {
  position: relative;
  width: 220px;
  height: 340px;
  display: flex;
  flex-direction: column;
  border-radius: 2px;
  overflow: hidden;
  box-shadow: 0 20px 60px rgba(0,0,0,0.6);
}

.dr-frame {
  position: absolute;
  inset: 0;
  pointer-events: none;
}

.dr-glass-pane {
  flex: 1;
  margin: 4px;
  position: relative;
  overflow: hidden;
  border-radius: 1px;
}

/* Silver glass frame */
.door-render-glass-silver {
  background: linear-gradient(180deg, #A0B0B8 0px, #8898A0 3px, transparent 3px, transparent calc(100% - 4px), #8898A0 calc(100% - 4px));
  border: 3px solid #9AAAB2;
  box-sizing: border-box;
}

.door-render-glass-silver .dr-glass-pane {
  background:
    linear-gradient(135deg,
      rgba(200,225,240,0.45) 0%, rgba(240,250,255,0.65) 20%,
      rgba(180,210,230,0.35) 40%, rgba(220,240,252,0.55) 60%,
      rgba(195,220,238,0.40) 80%, rgba(240,250,255,0.50) 100%
    );
  border: 1px solid rgba(160,190,210,0.5);
}

.door-render-glass-silver .dr-frame {
  background:
    linear-gradient(90deg, #9AAAB2 0px, transparent 3px, transparent calc(50% - 2px), #9AAAB2 calc(50% - 2px), #9AAAB2 calc(50% + 2px), transparent calc(50% + 2px), transparent calc(100% - 3px), #9AAAB2 calc(100% - 3px));
}

/* Rose Gold glass frame */
.door-render-glass-rosegold {
  background: #1C1210;
  border: 3px solid #C89070;
  box-sizing: border-box;
}

.door-render-glass-rosegold .dr-glass-pane {
  background:
    linear-gradient(135deg,
      rgba(230,190,170,0.40) 0%, rgba(255,225,205,0.55) 25%,
      rgba(210,170,150,0.35) 50%, rgba(245,215,195,0.50) 75%,
      rgba(225,185,165,0.40) 100%
    );
  border: 1px solid rgba(200,150,120,0.5);
}

.door-render-glass-rosegold .dr-frame {
  background:
    linear-gradient(90deg, #C89070 0px, transparent 3px, transparent calc(50% - 2px), #C89070 calc(50% - 2px), #C89070 calc(50% + 2px), transparent calc(50% + 2px), transparent calc(100% - 3px), #C89070 calc(100% - 3px));
}

/* Gold glass frame */
.door-render-glass-gold {
  background: #120E00;
  border: 3px solid #C8A828;
  box-sizing: border-box;
}

.door-render-glass-gold .dr-glass-pane {
  background:
    linear-gradient(135deg,
      rgba(240,220,140,0.40) 0%, rgba(255,245,180,0.55) 25%,
      rgba(220,195,110,0.35) 50%, rgba(250,238,168,0.50) 75%,
      rgba(235,210,130,0.40) 100%
    );
  border: 1px solid rgba(200,165,50,0.5);
}

.door-render-glass-gold .dr-frame {
  background:
    linear-gradient(90deg, #C8A828 0px, transparent 3px, transparent calc(50% - 2px), #C8A828 calc(50% - 2px), #C8A828 calc(50% + 2px), transparent calc(50% + 2px), transparent calc(100% - 3px), #C8A828 calc(100% - 3px));
}

/* Black glass frame */
.door-render-glass-black {
  background: #050505;
  border: 3px solid #2A2A2A;
  box-sizing: border-box;
}

.door-render-glass-black .dr-glass-pane {
  background:
    linear-gradient(135deg,
      rgba(50,55,60,0.55) 0%, rgba(80,88,95,0.65) 20%,
      rgba(40,45,50,0.45) 45%, rgba(70,78,85,0.60) 65%,
      rgba(55,60,65,0.50) 85%, rgba(80,88,95,0.55) 100%
    );
  border: 1px solid rgba(60,65,70,0.5);
}

.door-render-glass-black .dr-frame {
  background:
    linear-gradient(90deg, #2A2A2A 0px, transparent 3px, transparent calc(50% - 2px), #2A2A2A calc(50% - 2px), #2A2A2A calc(50% + 2px), transparent calc(50% + 2px), transparent calc(100% - 3px), #2A2A2A calc(100% - 3px));
}

/* Glass sheen overlay */
.dr-glass-sheen {
  position: absolute;
  inset: 0;
  background:
    linear-gradient(135deg, rgba(255,255,255,0.20) 0%, transparent 35%),
    linear-gradient(315deg, rgba(255,255,255,0.08) 0%, transparent 30%);
  pointer-events: none;
}

/* Glass category header */
.door-category-divider {
  padding: 60px 0 30px;
  text-align: center;
}

.door-category-eyebrow {
  display: block;
  font-family: var(--font-label);
  font-size: 9px;
  font-weight: 600;
  letter-spacing: 4px;
  text-transform: uppercase;
  color: var(--orange);
  margin-bottom: 12px;
}

.door-category-title {
  font-family: var(--font-display);
  font-size: clamp(32px, 4vw, 54px);
  letter-spacing: 3px;
  color: var(--white);
  line-height: 1;
  margin-bottom: 12px;
}

.door-category-sub {
  font-family: var(--font-body);
  font-size: 13px;
  font-weight: 300;
  color: var(--silver);
  max-width: 480px;
  margin: 0 auto;
  line-height: 1.7;
}

/* ── Info panel ── */
.door-card-info {
  padding: 50px 50px 50px 48px;
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: 14px;
  position: relative;
}

.door-card-alt .door-card-info {
  padding: 50px 48px 50px 50px;
}

.door-card-num {
  font-family: var(--font-display);
  font-size: 120px;
  color: rgba(255,77,0,0.04);
  line-height: 1;
  position: absolute;
  top: 10px;
  right: 30px;
  pointer-events: none;
}

.door-card-alt .door-card-num {
  right: auto;
  left: 30px;
}

.door-card-name {
  font-family: var(--font-display);
  font-size: clamp(28px, 3vw, 42px);
  letter-spacing: 2px;
  color: var(--white);
  line-height: 1;
}

.door-card-type {
  font-family: var(--font-label);
  font-size: 10px;
  letter-spacing: 3px;
  text-transform: uppercase;
  color: var(--orange);
}

.door-card-desc {
  font-family: var(--font-body);
  font-size: 14px;
  font-weight: 300;
  color: var(--silver);
  line-height: 1.7;
  max-width: 460px;
}

/* ── Spec row ── */
.door-spec-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 2px;
  margin-top: 4px;
}

.door-spec {
  background: rgba(255,255,255,0.02);
  border: 1px solid rgba(255,255,255,0.04);
  padding: 10px 14px;
  display: flex;
  flex-direction: column;
  gap: 3px;
  transition: background 0.2s, border-color 0.2s;
}

.door-card:hover .door-spec {
  background: rgba(255,77,0,0.03);
  border-color: rgba(255,77,0,0.08);
}

.door-spec-key {
  font-family: var(--font-label);
  font-size: 8px;
  letter-spacing: 2px;
  text-transform: uppercase;
  color: var(--orange);
}

.door-spec-val {
  font-family: var(--font-label);
  font-size: 11px;
  letter-spacing: 1px;
  color: var(--light);
}

/* ── CTA ── */
.door-card-cta {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 12px 28px;
  background: var(--orange);
  color: var(--white);
  font-family: var(--font-label);
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 3px;
  text-transform: uppercase;
  text-decoration: none;
  border-radius: 1px;
  width: fit-content;
  margin-top: 6px;
  transition: background 0.3s, box-shadow 0.3s, transform 0.2s;
}

.door-card-cta:hover {
  background: #e04400;
  box-shadow: 0 6px 24px rgba(255,77,0,0.3);
  transform: translateY(-1px);
}

/* ── Tech strip ── */
.door-tech-strip {
  background: #0a0a0a;
  border-top: 1px solid rgba(255,77,0,0.1);
  border-bottom: 1px solid rgba(255,77,0,0.1);
  padding: 50px 60px;
}

.door-tech-inner {
  max-width: 1300px;
  margin: 0 auto;
}

.door-tech-label {
  font-family: var(--font-label);
  font-size: 9px;
  letter-spacing: 4px;
  text-transform: uppercase;
  color: var(--silver);
  margin-bottom: 30px;
  text-align: center;
}

.door-tech-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1px;
  background: rgba(255,255,255,0.04);
}

.door-tech-item {
  background: var(--black);
  padding: 30px 24px;
  text-align: center;
}

.door-tech-val {
  font-family: var(--font-display);
  font-size: 40px;
  color: var(--orange);
  line-height: 1;
  margin-bottom: 12px;
}

.door-tech-desc {
  font-family: var(--font-body);
  font-size: 12px;
  font-weight: 300;
  color: var(--silver);
  line-height: 1.6;
  max-width: 200px;
  margin: 0 auto;
}

/* ── Footer CTA (reuse collections style) ── */
.col-footer-cta {
  position: relative;
  background: var(--dark);
  border-top: 1px solid rgba(255,255,255,0.05);
  padding: 100px 60px;
  text-align: center;
  overflow: hidden;
}

.col-footer-cta::before {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse 60% 50% at 50% 100%, rgba(255,77,0,0.08) 0%, transparent 70%);
  pointer-events: none;
}

.col-footer-inner {
  position: relative;
  z-index: 1;
  max-width: 600px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 20px;
}

.col-footer-eyebrow {
  font-family: var(--font-label);
  font-size: 9px;
  font-weight: 600;
  letter-spacing: 4px;
  text-transform: uppercase;
  color: var(--orange);
}

.col-footer-title {
  font-family: var(--font-display);
  font-size: clamp(32px, 5vw, 56px);
  color: var(--white);
  line-height: 1;
  margin: 0;
}

.col-footer-body {
  font-family: var(--font-body);
  font-size: 15px;
  font-weight: 300;
  line-height: 1.7;
  color: var(--silver);
  max-width: 480px;
}

.col-footer-btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 16px 40px;
  background: var(--orange);
  color: var(--white);
  font-family: var(--font-label);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 3px;
  text-transform: uppercase;
  text-decoration: none;
  border-radius: 2px;
  margin-top: 10px;
  transition: background 0.3s, box-shadow 0.3s, transform 0.2s;
}

.col-footer-btn:hover {
  background: #e04400;
  box-shadow: 0 8px 32px rgba(255,77,0,0.35);
  transform: translateY(-2px);
}

.nav-active {
  color: var(--orange) !important;
}

/* ── Responsive ── */
@media (max-width: 1100px) {
  .door-card {
    grid-template-columns: 320px 1fr;
  }
}

@media (max-width: 900px) {
  .door-card,
  .door-card-alt {
    grid-template-columns: 1fr;
    direction: ltr;
  }

  .door-card-visual {
    height: 300px;
  }

  .door-card-info,
  .door-card-alt .door-card-info {
    padding: 36px 28px 40px;
  }

  .door-card-num {
    font-size: 80px;
    top: 8px;
    right: 16px;
  }

  .door-card-alt .door-card-num {
    right: 16px;
    left: auto;
  }

  .door-tech-grid {
    grid-template-columns: 1fr 1fr;
  }
}

@media (max-width: 600px) {
  .door-grid-wrap {
    padding: 0 20px;
  }

  .door-spec-row {
    grid-template-columns: 1fr;
  }

  .door-tech-strip {
    padding: 40px 24px;
  }

  .door-tech-grid {
    grid-template-columns: 1fr;
  }

  .col-footer-cta {
    padding: 60px 24px;
  }
}