/* ========================================
   AURA AIR — PREMIUM LANDING PAGE
   Apple / Tesla / Dyson Visual Experience
   ======================================== */

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

:root {
  --bg:          #F8F9FF;
  --bg2:         #EFF1FF;
  --surface:     rgba(59,58,138,0.04);
  --border:      rgba(59,58,138,0.1);
  --border2:     rgba(59,58,138,0.2);
  --text:        #1a1840;
  --text-dim:    rgba(26,24,64,0.55);
  --text-faint:  rgba(26,24,64,0.28);
  --ice:         #00C4B4;
  --ice-glow:    rgba(0,196,180,0.22);
  --gold:        #3B3A8A;
  --gold-glow:   rgba(59,58,138,0.18);
  --silver:      #00A896;
  --font-d:      'Montserrat', sans-serif;
  --font-b:      'Montserrat', sans-serif;
}

html {
  overflow-x: hidden;
  scroll-behavior: auto;
}

body {
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-b);
  font-weight: 400;
  overflow-x: hidden;
  cursor: none;
  -webkit-font-smoothing: antialiased;
}

img {
  display: block;
  max-width: 100%;
}

a { color: inherit; text-decoration: none; }
button { cursor: none; background: none; border: none; outline: none; }

/* ========================================
   SCROLL PROGRESS
   ======================================== */
.scroll-progress {
  position: fixed;
  top: 0; left: 0;
  height: 1px;
  width: 0%;
  background: linear-gradient(90deg, var(--ice), rgba(0,196,180,0.3));
  z-index: 9999;
  transition: width 0.1s linear;
}

/* ========================================
   CUSTOM CURSOR
   ======================================== */
.cursor {
  position: fixed;
  width: 36px; height: 36px;
  border: 1px solid rgba(59,58,138,0.3);
  border-radius: 50%;
  pointer-events: none;
  z-index: 9998;
  transform: translate(-50%,-50%);
  transition: border-color 0.3s, transform 0.2s;
}

.cursor-dot {
  position: fixed;
  width: 4px; height: 4px;
  background: #3B3A8A;
  border-radius: 50%;
  pointer-events: none;
  z-index: 9999;
  transform: translate(-50%,-50%);
}

.cursor.hover {
  transform: translate(-50%,-50%) scale(1.6);
  border-color: rgba(0,196,180,0.7);
}

/* ========================================
   NAVIGATION
   ======================================== */
.nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 1100;
  padding: 20px 6%;
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  align-items: center;
  transition: background 0.5s, padding 0.4s, box-shadow 0.4s;
}

.nav.scrolled {
  background: rgba(255,255,255,0.95);
  backdrop-filter: blur(24px);
  -webkit-backdrop-filter: blur(24px);
  padding: 12px 6%;
  box-shadow: 0 1px 0 rgba(59,58,138,0.08);
}

.nav-logo-link {
  grid-column: 2;
  justify-self: center;
  display: flex;
  align-items: center;
  cursor: none;
}

.nav-logo-img {
  height: 38px;
  width: auto;
  display: block;
  filter: brightness(0) invert(1);
  transition: filter 0.5s ease, opacity 0.3s;
}

.nav.scrolled .nav-logo-img {
  filter: none;
  mix-blend-mode: multiply;
}

.nav-logo-img:hover { opacity: 0.75; }

/* CTA button — правый угол */
.nav-top-cta {
  grid-column: 3;
  justify-self: end;
  font-size: 11px;
  font-weight: 300;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  text-decoration: none;
  padding: 9px 22px;
  border-radius: 100px;
  border: 1px solid rgba(255,255,255,0.3);
  color: rgba(255,255,255,0.85);
  cursor: none;
  transition: border-color 0.3s, color 0.3s, background 0.3s;
}

.nav-top-cta:hover {
  border-color: rgba(255,255,255,0.7);
  color: #fff;
  background: rgba(255,255,255,0.08);
}

.nav.scrolled .nav-top-cta {
  border-color: var(--border2);
  color: var(--text-dim);
}

.nav.scrolled .nav-top-cta:hover {
  border-color: var(--ice);
  color: var(--ice);
  background: transparent;
}

/* HAMBURGER */
.nav-burger {
  grid-column: 1;
  justify-self: start;
  width: 48px; height: 48px;
  display: flex; flex-direction: column;
  align-items: flex-start; justify-content: center;
  gap: 6px;
  background: none; border: none !important;
  cursor: none;
  position: relative; z-index: 1200;
  padding: 0;
}

.nav-burger span {
  display: block;
  height: 1.5px;
  background: rgba(255,255,255,0.9);
  border-radius: 2px;
  transition: width 0.35s cubic-bezier(0.4,0,0.2,1),
              transform 0.4s cubic-bezier(0.4,0,0.2,1),
              opacity 0.3s ease,
              background 0.4s;
}

.nav.scrolled .nav-burger span { background: var(--text); }

.nav-burger span:nth-child(1) { width: 28px; }
.nav-burger span:nth-child(2) { width: 20px; }
.nav-burger span:nth-child(3) { width: 24px; }

.nav-burger:hover span { background: var(--ice); }
.nav-burger:hover span:nth-child(1) { width: 28px; }
.nav-burger:hover span:nth-child(2) { width: 28px; }
.nav-burger:hover span:nth-child(3) { width: 28px; }

/* Hamburger OPEN state → X */
.nav-burger.open span:nth-child(1) {
  width: 28px;
  transform: translateY(7.5px) rotate(45deg);
  background: #fff;
}
.nav-burger.open span:nth-child(2) {
  opacity: 0; width: 0;
}
.nav-burger.open span:nth-child(3) {
  width: 28px;
  transform: translateY(-7.5px) rotate(-45deg);
  background: #fff;
}

/* ========================================
   OVERLAY MENU
   ======================================== */
.nav-overlay {
  position: fixed;
  inset: 0;
  z-index: 1050;
  background: #0b0928;
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: 100px 6% 60px;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.5s cubic-bezier(0.4,0,0.2,1);
  overflow: hidden;
}

.nav-overlay.open {
  opacity: 1;
  pointer-events: auto;
}

.nav-ov-glow {
  position: absolute;
  top: -100px; right: -100px;
  width: 600px; height: 600px;
  background: radial-gradient(circle, rgba(0,196,180,0.1) 0%, transparent 65%);
  border-radius: 50%;
  pointer-events: none;
}

.nav-ov-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex: 1;
  gap: 60px;
}

/* BIG LINKS */
.nav-ov-links {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.nav-ov-link {
  font-family: var(--font-d);
  font-size: clamp(44px, 7vw, 90px);
  font-weight: 700;
  letter-spacing: -0.025em;
  color: rgba(255,255,255,0.25);
  text-decoration: none;
  display: flex;
  align-items: baseline;
  gap: 20px;
  line-height: 1.1;
  cursor: none;
  transition: color 0.3s, transform 0.3s;
  transform: translateX(-40px);
  opacity: 0;
  transition: color 0.3s, transform 0.5s cubic-bezier(0.16,1,0.3,1),
              opacity 0.5s ease;
}

.nav-overlay.open .nav-ov-link:nth-child(1) { transform: none; opacity: 1; transition-delay: 0.1s; }
.nav-overlay.open .nav-ov-link:nth-child(2) { transform: none; opacity: 1; transition-delay: 0.17s; }
.nav-overlay.open .nav-ov-link:nth-child(3) { transform: none; opacity: 1; transition-delay: 0.24s; }
.nav-overlay.open .nav-ov-link:nth-child(4) { transform: none; opacity: 1; transition-delay: 0.31s; }

.nav-ov-link::before {
  content: attr(data-num);
  font-size: 11px;
  font-weight: 300;
  letter-spacing: 0.2em;
  color: var(--ice);
  opacity: 0.6;
  font-family: var(--font-b);
  margin-bottom: 4px;
}

.nav-ov-link:hover {
  color: #ffffff;
  transform: translateX(12px) !important;
}

/* RIGHT SIDE */
.nav-ov-right {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 40px;
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.5s ease 0.4s, transform 0.5s ease 0.4s;
}

.nav-overlay.open .nav-ov-right {
  opacity: 1;
  transform: none;
}

.nav-ov-tagline {
  font-family: var(--font-d);
  font-size: clamp(14px, 1.5vw, 18px);
  font-weight: 100;
  line-height: 1.7;
  letter-spacing: 0.05em;
  color: rgba(255,255,255,0.3);
  border-left: 1px solid rgba(0,196,180,0.35);
  padding-left: 20px;
}

.nav-ov-cta {
  display: inline-flex;
  align-items: center;
  padding: 14px 30px;
  border: 1px solid rgba(0,196,180,0.4);
  border-radius: 100px;
  color: var(--ice);
  font-size: 12px;
  font-weight: 300;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  text-decoration: none;
  cursor: none;
  transition: background 0.3s, border-color 0.3s, color 0.3s;
}

.nav-ov-cta:hover {
  background: var(--ice);
  color: #fff;
  border-color: var(--ice);
}

/* FOOTER */
.nav-ov-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: 40px;
  border-top: 1px solid rgba(255,255,255,0.07);
  opacity: 0;
  transition: opacity 0.5s ease 0.5s;
}

.nav-overlay.open .nav-ov-footer { opacity: 1; }

.nav-ov-footer span {
  font-size: 11px;
  font-weight: 300;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: rgba(255,255,255,0.2);
}

@media (max-width: 768px) {
  .nav-ov-inner { flex-direction: column; align-items: flex-start; gap: 40px; justify-content: center; }
  .nav-ov-right { gap: 24px; }
  .nav-ov-tagline { display: none; }
}

/* ========================================
   HERO SLIDER
   ======================================== */
.hero-slider {
  position: relative;
  width: 100%;
  height: 100vh;
  min-height: 700px;
  overflow: hidden;
  background: #0b0928;
}

.hs-slides { position: absolute; inset: 0; }

.hs-slide {
  position: absolute;
  inset: 0;
  opacity: 0;
  pointer-events: none;
  transition: opacity 1s cubic-bezier(0.4, 0, 0.2, 1);
}
.hs-slide.active {
  opacity: 1;
  pointer-events: auto;
}

.hs-bg { position: absolute; inset: 0; }
.hs-bg img {
  width: 100%; height: 100%;
  object-fit: cover;
  transform: scale(1.07);
  transition: transform 7s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}
.hs-slide.active .hs-bg img { transform: scale(1); }

.hs-fog {
  position: absolute;
  inset: 0;
  background: linear-gradient(
    105deg,
    rgba(8,6,30,0.88) 0%,
    rgba(8,6,30,0.6) 38%,
    rgba(8,6,30,0.15) 65%,
    transparent 100%
  );
}

.hs-content {
  position: absolute;
  left: 8%; top: 50%;
  transform: translateY(calc(-50% + 28px));
  opacity: 0;
  max-width: 580px;
  transition: transform 0.9s cubic-bezier(0.16,1,0.3,1) 0.4s,
              opacity 0.9s ease 0.4s;
  z-index: 2;
}
.hs-slide.active .hs-content {
  transform: translateY(-50%);
  opacity: 1;
}

/* Chip */
.hs-chip {
  display: inline-block;
  font-size: 10px; font-weight: 300;
  letter-spacing: 0.3em; text-transform: uppercase;
  color: rgba(255,255,255,0.9);
  background: rgba(0,196,180,0.18);
  border: 1px solid rgba(0,196,180,0.45);
  padding: 6px 20px; border-radius: 100px;
  margin-bottom: 24px;
}
.hs-chip-gold  { background: rgba(200,169,110,0.15); border-color: rgba(200,169,110,0.4); }
.hs-chip-plat  { background: rgba(210,210,230,0.1);  border-color: rgba(210,210,230,0.3); }

/* Title */
.hs-title {
  font-family: var(--font-d);
  font-weight: 700;
  font-size: clamp(72px, 10vw, 136px);
  line-height: 0.88; letter-spacing: -0.03em;
  color: #ffffff;
  margin-bottom: 36px;
}

/* Specs */
.hs-specs {
  display: flex; align-items: center; gap: 22px;
  margin-bottom: 28px;
}
.hs-spec { display: flex; flex-direction: column; gap: 4px; }
.hs-snum {
  font-family: var(--font-d); font-size: 22px; font-weight: 600;
  letter-spacing: -0.02em; color: #fff;
}
.hs-slbl {
  font-size: 9px; font-weight: 300; letter-spacing: 0.2em;
  text-transform: uppercase; color: rgba(255,255,255,0.38);
}
.hs-sep { width: 1px; height: 34px; background: rgba(255,255,255,0.14); }

/* Desc */
.hs-desc {
  font-size: 14px; font-weight: 300;
  line-height: 1.85; letter-spacing: 0.03em;
  color: rgba(255,255,255,0.55);
  margin-bottom: 40px;
}

/* CTA Buttons */
.hs-btns { display: flex; align-items: center; gap: 14px; flex-wrap: wrap; }

.hs-btn-primary {
  display: inline-flex; align-items: center; gap: 10px;
  padding: 15px 34px;
  background: var(--ice); color: #fff;
  border-radius: 100px;
  font-family: var(--font-d); font-size: 12px; font-weight: 400;
  letter-spacing: 0.15em; text-transform: uppercase; text-decoration: none;
  transition: background 0.3s, transform 0.3s, box-shadow 0.3s;
  cursor: none;
}
.hs-btn-primary:hover {
  background: #00aaa0;
  transform: translateY(-2px);
  box-shadow: 0 10px 36px rgba(0,196,180,0.45);
}
.hs-btn-primary span { display: inline-block; transition: transform 0.3s; }
.hs-btn-primary:hover span { transform: translateX(5px); }

.hs-btn-ghost {
  display: inline-flex; align-items: center;
  padding: 15px 34px;
  border: 1px solid rgba(255,255,255,0.22);
  color: rgba(255,255,255,0.7);
  border-radius: 100px;
  font-family: var(--font-d); font-size: 12px; font-weight: 300;
  letter-spacing: 0.15em; text-transform: uppercase; text-decoration: none;
  transition: border-color 0.3s, color 0.3s, background 0.3s;
  cursor: none;
}
.hs-btn-ghost:hover {
  border-color: rgba(255,255,255,0.6); color: #fff;
  background: rgba(255,255,255,0.06);
}

/* Navigation */
.hs-nav {
  position: absolute; bottom: 44px; left: 50%;
  transform: translateX(-50%);
  display: flex; align-items: center; gap: 18px; z-index: 10;
}

.hs-arrow {
  width: 46px; height: 46px; border-radius: 50%;
  border: 1px solid rgba(255,255,255,0.18) !important;
  background: rgba(255,255,255,0.06);
  backdrop-filter: blur(10px);
  color: rgba(255,255,255,0.7);
  display: flex; align-items: center; justify-content: center;
  cursor: none;
  transition: border-color 0.3s, background 0.3s, color 0.3s;
}
.hs-arrow:hover {
  border-color: var(--ice) !important;
  color: var(--ice); background: rgba(0,196,180,0.12);
}
.hs-arrow svg { width: 18px; height: 18px; }

.hs-dots { display: flex; gap: 8px; align-items: center; }
.hs-dot {
  height: 6px; width: 6px; border-radius: 3px;
  background: rgba(255,255,255,0.28);
  border: none !important; cursor: none;
  transition: width 0.4s cubic-bezier(0.4,0,0.2,1), background 0.3s;
}
.hs-dot.active { width: 28px; background: var(--ice); }

/* Counter */
.hs-counter {
  position: absolute; bottom: 52px; right: 8%;
  display: flex; flex-direction: column; align-items: center; gap: 8px; z-index: 10;
}
#hsCurrentNum {
  font-family: var(--font-d); font-size: 30px; font-weight: 100;
  letter-spacing: -0.02em; color: #fff;
}
.hs-counter-line { width: 1px; height: 36px; background: rgba(255,255,255,0.18); }
.hs-counter-total {
  font-family: var(--font-d); font-size: 13px; font-weight: 100;
  color: rgba(255,255,255,0.3);
}

/* Progress bar */
.hs-progress {
  position: absolute; bottom: 0; left: 0;
  height: 2px; background: var(--ice); z-index: 10;
  width: 0%;
}

@keyframes slideUp { to { opacity: 1; transform: translateY(0); } }
@keyframes fadeUp  { to { opacity: 1; } }

.scroll-hint {
  position: absolute;
  bottom: 36px; left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 10px;
  z-index: 3;
  opacity: 0;
  animation: fadeUp 0.8s ease 1.5s forwards;
}

.sh-line {
  width: 1px; height: 48px;
  background: linear-gradient(to bottom, transparent, rgba(255,255,255,0.4));
  animation: scroll-drip 2.2s ease-in-out infinite;
}

@keyframes scroll-drip {
  0%   { opacity:0; transform:scaleY(0); transform-origin:top; }
  40%  { opacity:1; transform:scaleY(1); transform-origin:top; }
  60%  { opacity:1; transform:scaleY(1); transform-origin:bottom; }
  100% { opacity:0; transform:scaleY(0); transform-origin:bottom; }
}

.scroll-hint span {
  font-size: 8px;
  letter-spacing: 0.35em;
  color: var(--text-faint);
  text-transform: uppercase;
}

/* ========================================
   PRODUCT SECTIONS — BASE
   ======================================== */
.product-section {
  position: relative;
  min-height: calc(100vh + 20px);
  padding: 0;
  display: flex;
  flex-direction: column;
  justify-content: center;
  overflow: hidden;
}

.product-section::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(to right, rgba(248,249,255,0.94) 0%, rgba(248,249,255,0.7) 42%, rgba(248,249,255,0.1) 75%, transparent 100%);
  z-index: 2;
  pointer-events: none;
}

.product-section.rev::after {
  background: linear-gradient(to left, rgba(248,249,255,0.94) 0%, rgba(248,249,255,0.7) 42%, rgba(248,249,255,0.1) 75%, transparent 100%);
}

.sec-bg {
  position: absolute;
  inset: 0;
  z-index: 0;
}

.sec-glow {
  position: absolute;
  border-radius: 50%;
  filter: blur(80px);
  pointer-events: none;
}

.g12 {
  width: 600px; height: 600px;
  top: 20%; right: 0;
  background: radial-gradient(circle, rgba(0,196,180,0.1) 0%, transparent 70%);
}
.g18 {
  width: 600px; height: 600px;
  top: 20%; left: 0;
  background: radial-gradient(circle, rgba(59,58,138,0.08) 0%, transparent 70%);
}
.g24 {
  width: 500px; height: 700px;
  top: 10%; right: 10%;
  background: radial-gradient(circle, rgba(59,58,138,0.07) 0%, transparent 70%);
}
.g45 {
  width: 500px; height: 700px;
  top: 10%; left: 10%;
  background: radial-gradient(circle, rgba(0,196,180,0.08) 0%, transparent 70%);
}

/* PRODUCT GRID */
.product-grid {
  position: relative;
  z-index: 3;
  display: flex;
  align-items: center;
  min-height: 100vh;
  padding: 120px 8%;
}

/* PRODUCT VISUAL — full bleed background */
.product-visual {
  position: absolute;
  inset: 0;
  z-index: 1;
}

.img-wrap {
  position: relative;
  width: 100%;
  height: 100%;
}

.product-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  max-width: none;
  filter: none;
  transition: transform 0.8s ease;
}

.product-img:hover {
  transform: scale(1.03);
  filter: none;
}

.img-glow {
  display: none;
}

/* PRODUCT INFO */
.product-info {
  display: flex;
  flex-direction: column;
  gap: 0;
  max-width: 520px;
  position: relative;
  z-index: 3;
}

.product-section .product-info .product-heading,
.product-section .product-info .spec-num,
.product-section .product-info .btu-chip { color: #ffffff; }

.product-section .product-info .spec-lbl,
.product-section .product-info .product-tagline,
.product-section .product-info .feature-item { color: rgba(255,255,255,0.65); }

.product-section .product-info .feature-item::before { background: rgba(255,255,255,0.4); }

.product-section .product-info .product-divider { background: rgba(255,255,255,0.2); }
.product-section .product-info .gold-divider     { background: rgba(255,255,255,0.2); }
.product-section .product-info .platinum-divider { background: rgba(255,255,255,0.2); }

/* Elite 18 — текст по центру */
#btu18 .product-grid {
  justify-content: center;
}

#btu18 .product-info {
  align-items: center;
  text-align: center;
}

#btu18 .product-info .btu-chip,
#btu18 .product-info .product-divider {
  align-self: center;
}

#btu18 .product-info .feature-list {
  align-items: center;
}

#btu18.product-section::after {
  background: radial-gradient(
    ellipse at 50% 60%,
    rgba(8,6,30,0.75) 0%,
    rgba(8,6,30,0.4) 45%,
    transparent 75%
  );
}

/* Tower 48 — тёмный текст */
#btu45 .product-info .product-heading,
#btu45 .product-info .spec-num        { color: var(--text); }

#btu45 .product-info .btu-chip.platinum { color: var(--text); border-color: rgba(59,58,138,0.3); }

#btu45 .product-info .spec-lbl,
#btu45 .product-info .product-tagline,
#btu45 .product-info .feature-item    { color: var(--text-dim); }

#btu45 .product-info .feature-item::before { background: var(--text-faint); }

#btu45 .product-info .platinum-divider { background: rgba(59,58,138,0.2); }

/* Tower 24 — тёмный текст */
#btu24 .product-info .product-heading,
#btu24 .product-info .spec-num        { color: var(--text); }

#btu24 .product-info .btu-chip.gold   { color: var(--gold); border-color: rgba(59,58,138,0.4); }

#btu24 .product-info .spec-lbl,
#btu24 .product-info .product-tagline,
#btu24 .product-info .feature-item    { color: var(--text-dim); }

#btu24 .product-info .feature-item::before { background: var(--text-faint); }

#btu24 .product-info .gold-divider    { background: rgba(59,58,138,0.25); }

.btu-chip {
  display: inline-block;
  align-self: flex-start;
  font-size: 10px;
  font-weight: 300;
  letter-spacing: 0.3em;
  text-transform: uppercase;
  color: #ffffff;
  border: 1px solid rgba(255,255,255,0.4);
  padding: 6px 18px;
  border-radius: 100px;
  margin-bottom: 22px;
}

.btu-chip.gold {
  color: var(--gold);
  border-color: rgba(200,169,110,0.35);
}

.btu-chip.platinum {
  color: var(--silver);
  border-color: rgba(208,208,216,0.3);
}

.product-heading {
  font-family: var(--font-d);
  font-weight: 700;
  font-size: clamp(48px, 6vw, 88px);
  line-height: 0.95;
  letter-spacing: -0.02em;
  margin-bottom: 44px;
}

.spec-row {
  display: flex;
  gap: 36px;
  margin-bottom: 36px;
  flex-wrap: wrap;
}

.spec { display: flex; flex-direction: column; gap: 4px; }

.spec-num {
  font-family: var(--font-d);
  font-size: 26px;
  font-weight: 600;
  letter-spacing: -0.02em;
}

.spec-lbl {
  font-size: 9px;
  font-weight: 300;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--text-faint);
}

.product-tagline {
  font-size: 13px;
  font-weight: 300;
  line-height: 1.9;
  color: var(--text-dim);
  letter-spacing: 0.03em;
  margin-bottom: 28px;
}

.product-divider {
  width: 40px; height: 1px;
  background: var(--border2);
  margin-bottom: 28px;
}
.gold-divider { background: rgba(200,169,110,0.3); }
.platinum-divider { background: rgba(208,208,216,0.3); }

.feature-list {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.feature-item {
  font-size: 11px;
  font-weight: 300;
  letter-spacing: 0.1em;
  color: var(--text-faint);
  text-transform: uppercase;
  padding-left: 16px;
  position: relative;
}

.feature-item::before {
  content: '';
  position: absolute;
  left: 0; top: 50%;
  transform: translateY(-50%);
  width: 4px; height: 1px;
  background: var(--text-faint);
}

/* ========================================
   IMAGE MARQUEE
   ======================================== */
.img-marquee {
  position: relative;
  z-index: 3;
  margin-top: 40px;
  margin-bottom: 40px;
  overflow: hidden;
  mask-image: linear-gradient(90deg, transparent 0%, black 8%, black 92%, transparent 100%);
  -webkit-mask-image: linear-gradient(90deg, transparent 0%, black 8%, black 92%, transparent 100%);
}

.marquee-track {
  display: flex;
  gap: 16px;
  animation: marquee-fwd 28s linear infinite;
  width: max-content;
}

.rev-track {
  animation: marquee-rev 28s linear infinite;
}

@keyframes marquee-fwd {
  from { transform: translateX(0); }
  to   { transform: translateX(-50%); }
}
@keyframes marquee-rev {
  from { transform: translateX(-50%); }
  to   { transform: translateX(0); }
}

.mq-img {
  width: 340px;
  aspect-ratio: 21 / 9;
  object-fit: cover;
  background: transparent;
  border-radius: 14px;
  flex-shrink: 0;
  transition: opacity 0.3s;
}
.mq-img:hover { opacity: 0.85; }
.mq-img:hover { border-color: var(--ice) !important; }

/* ========================================
   COLUMN UNITS (24 & 45 BTU)
   ======================================== */
.column-section { padding-top: 80px; }

.col-grid {
  min-height: 100vh;
}

.col-visual {
  position: absolute;
  inset: 0;
  height: auto;
  align-self: auto;
}

.col-wrap {
  width: 100%;
  height: 100%;
  align-items: stretch;
}

.col-img {
  width: 100%;
  height: 100%;
  max-width: none;
  object-fit: cover;
  filter: none;
}

.col-glow {
  bottom: -10px;
  width: 60%;
  height: 120px;
}

.platinum-glow {
  background: radial-gradient(ellipse at center, rgba(0,168,150,0.2) 0%, transparent 70%);
}

/* Reverse product sections — text on right */
.product-section.rev .product-grid {
  justify-content: flex-end;
}

/* ========================================
   AIRFLOW SECTION
   ======================================== */
.airflow-section {
  position: relative;
  height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  background: linear-gradient(160deg, #EEF0FF 0%, #F4F5FF 50%, #EEF0FF 100%);
}

#airflowCanvas {
  position: absolute;
  inset: 0;
  z-index: 0;
}

.airflow-inner {
  position: relative;
  z-index: 1;
  text-align: center;
}

.af-label {
  font-size: 10px;
  font-weight: 300;
  letter-spacing: 0.4em;
  text-transform: uppercase;
  color: var(--ice);
  margin-bottom: 16px;
}

.af-title {
  font-family: var(--font-d);
  font-weight: 700;
  font-size: clamp(72px, 11vw, 160px);
  line-height: 0.88;
  letter-spacing: -0.025em;
}

.af-streams {
  margin-top: 48px;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 10px;
}

.af-line {
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--ice), transparent);
  border-radius: 1px;
}
.l1 { width: 160px; animation: af-pulse 3s ease-in-out 0.0s infinite; }
.l2 { width: 260px; animation: af-pulse 3s ease-in-out 0.3s infinite; }
.l3 { width: 320px; animation: af-pulse 3s ease-in-out 0.6s infinite; }
.l4 { width: 260px; animation: af-pulse 3s ease-in-out 0.9s infinite; }
.l5 { width: 160px; animation: af-pulse 3s ease-in-out 1.2s infinite; }

@keyframes af-pulse {
  0%,100% { opacity: 0.15; transform: scaleX(0.6); }
  50%      { opacity: 0.8;  transform: scaleX(1); }
}

/* ========================================
   SILENCE SECTION
   ======================================== */
.silence-section {
  position: relative;
  height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  background: #F4F6FF;
}

.sil-glow {
  position: absolute;
  top: 50%; left: 50%;
  transform: translate(-50%,-50%);
  width: 500px; height: 500px;
  background: radial-gradient(circle, rgba(0,196,180,0.1) 0%, transparent 65%);
  border-radius: 50%;
  animation: sil-breathe 5s ease-in-out infinite;
}

@keyframes sil-breathe {
  0%,100% { transform: translate(-50%,-50%) scale(1);   opacity: 0.5; }
  50%      { transform: translate(-50%,-50%) scale(1.4); opacity: 1;   }
}

.sil-circles {
  position: absolute;
  top: 50%; left: 50%;
}

.sil-ring {
  position: absolute;
  border-radius: 50%;
  border: 1px solid rgba(59,58,138,0.1);
  transform: translate(-50%,-50%);
  animation: sil-ring 5s ease-in-out infinite;
}

.r1 { width: 160px; height: 160px; animation-delay: 0s;   }
.r2 { width: 300px; height: 300px; animation-delay: 0.8s; }
.r3 { width: 460px; height: 460px; animation-delay: 1.6s; }
.r4 { width: 620px; height: 620px; animation-delay: 2.4s; }

@keyframes sil-ring {
  0%   { opacity:0; transform: translate(-50%,-50%) scale(0.85); }
  40%  { opacity:1; }
  100% { opacity:0; transform: translate(-50%,-50%) scale(1.1); }
}

.sil-content {
  position: relative;
  z-index: 1;
  text-align: center;
}

.sil-title {
  font-family: var(--font-d);
  font-weight: 700;
  font-size: clamp(64px, 10vw, 150px);
  line-height: 0.92;
  letter-spacing: -0.025em;
  margin-bottom: 20px;
}

.sil-sub {
  font-size: 12px;
  font-weight: 300;
  letter-spacing: 0.22em;
  color: var(--text-dim);
  text-transform: uppercase;
  margin-bottom: 40px;
}

.sil-wave {
  width: 400px;
  height: 60px;
  margin: 0 auto;
}

.sil-wave svg {
  width: 100%; height: 100%;
}

/* ========================================
   AIR ANIMATION CANVAS
   ======================================== */
.air-canvas {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  z-index: 2;
  pointer-events: none;
}

/* TOWER 48 + SMART — 2-column layout */
#btu45::after {
  display: none;
}

.btu45-grid {
  display: grid !important;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  justify-content: initial !important;
  align-items: center;
}

.smart-col {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 14px;
  position: relative;
  z-index: 3;
  height: 100%;
}

.smart-col .smart-ui {
  display: flex;
  align-items: center;
  justify-content: center;
}

.sm-ovr-eyebrow {
  font-size: 10px;
  font-weight: 300;
  letter-spacing: 0.35em;
  text-transform: uppercase;
  color: var(--ice);
  align-self: flex-start;
}

.smart-section {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 100px 8%;
  overflow: hidden;
}

.smart-bg {
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, #F8F9FF 0%, #EFF1FF 100%);
}

.smart-grid {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: 1fr 1.4fr;
  gap: 80px;
  align-items: center;
  width: 100%;
  max-width: 1100px;
}

.sm-eyebrow {
  font-size: 10px;
  font-weight: 300;
  letter-spacing: 0.35em;
  text-transform: uppercase;
  color: var(--ice);
  margin-bottom: 20px;
}

.sm-title {
  font-family: var(--font-d);
  font-weight: 700;
  font-size: clamp(52px, 7vw, 96px);
  line-height: 0.92;
  letter-spacing: -0.02em;
  margin-bottom: 28px;
}

.sm-desc {
  font-size: 13px;
  font-weight: 300;
  line-height: 2;
  color: var(--text-dim);
  letter-spacing: 0.04em;
}

/* Smart UI */
.smart-ui {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  height: 400px;
}

.ui-card {
  width: 300px;
  padding: 36px;
  background: rgba(255,255,255,0.95);
  backdrop-filter: blur(24px);
  -webkit-backdrop-filter: blur(24px);
  border: 1px solid var(--border);
  border-radius: 28px;
  position: relative;
  z-index: 2;
  box-shadow: 0 8px 40px rgba(59,58,138,0.1);
}

.ui-temp {
  font-family: var(--font-d);
  font-size: 76px;
  font-weight: 700;
  letter-spacing: -0.05em;
  line-height: 1;
  text-align: center;
}

.ui-temp-lbl {
  font-size: 9px;
  font-weight: 300;
  letter-spacing: 0.3em;
  text-transform: uppercase;
  color: var(--text-faint);
  text-align: center;
  margin-bottom: 28px;
}

.ui-btns {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 28px;
}

.ui-btn {
  width: 44px; height: 44px;
  border-radius: 50%;
  border: 1px solid var(--border2) !important;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 22px;
  font-weight: 200;
  color: var(--text-dim);
  transition: all 0.3s;
  cursor: none;
}

.ui-btn:hover {
  border-color: var(--ice) !important;
  color: var(--ice);
  box-shadow: 0 0 20px rgba(0,196,180,0.25);
}

.ui-modes {
  display: flex;
  gap: 8px;
}

.ui-mode {
  width: 6px; height: 6px;
  border-radius: 50%;
  background: var(--border2);
  transition: all 0.3s;
}
.ui-mode.active {
  background: var(--ice);
  box-shadow: 0 0 8px var(--ice);
}

.ui-status {
  display: flex;
  flex-direction: column;
  gap: 10px;
  margin-bottom: 22px;
}

.ui-stat-item {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 11px;
  font-weight: 300;
  color: var(--text-dim);
  letter-spacing: 0.04em;
}

.stat-dot {
  width: 6px; height: 6px;
  border-radius: 50%;
  background: var(--border2);
  flex-shrink: 0;
}
.stat-dot.active { background: #4cd964; box-shadow: 0 0 6px rgba(76,217,100,0.6); }
.stat-dot.sleep  { background: #5856d6; box-shadow: 0 0 6px rgba(88,86,214,0.5); }

.ui-bar {
  height: 2px;
  background: var(--border);
  border-radius: 2px;
  overflow: hidden;
}

.ui-fill {
  height: 100%;
  background: linear-gradient(90deg, var(--ice), rgba(0,196,180,0.2));
  border-radius: 2px;
  transition: width 0.5s ease;
}

/* Floating chips */
.float-chip {
  position: absolute;
  padding: 14px 18px;
  background: rgba(255,255,255,0.92);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border: 1px solid var(--border);
  border-radius: 16px;
  z-index: 3;
  box-shadow: 0 4px 20px rgba(59,58,138,0.08);
}

.chip1 { top: 8%;   right: -30px; animation: chip-float 5s ease-in-out 0s infinite; }
.chip2 { top: 42%;  right: -60px; transform: translateY(-50%); animation: chip-float-mid 5s ease-in-out 1s infinite; }
.chip3 { bottom: 8%; left: -40px;  animation: chip-float 5s ease-in-out 2s infinite; }

@keyframes chip-float {
  0%,100% { transform: translateY(0); }
  50%      { transform: translateY(-8px); }
}
@keyframes chip-float-mid {
  0%,100% { transform: translateY(-50%); }
  50%      { transform: translateY(calc(-50% - 8px)); }
}

.chip-val {
  font-family: var(--font-d);
  font-size: 20px;
  font-weight: 200;
  margin-bottom: 2px;
}
.chip-lbl {
  font-size: 9px;
  font-weight: 300;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--text-faint);
}

/* ========================================
   PREMIUM DETAILS SECTION
   ======================================== */
.details-section {
  padding: 100px 0 80px;
  overflow: hidden;
}

.det-header {
  padding: 0 8%;
  margin-bottom: 56px;
}

.det-eyebrow {
  font-size: 10px;
  font-weight: 300;
  letter-spacing: 0.35em;
  text-transform: uppercase;
  color: var(--ice);
  margin-bottom: 14px;
}

.det-title {
  font-family: var(--font-d);
  font-weight: 700;
  font-size: clamp(44px, 5.5vw, 76px);
  line-height: 0.92;
  letter-spacing: -0.02em;
}

.det-scroll {
  overflow-x: auto;
  cursor: grab;
  padding-bottom: 20px;
  scrollbar-width: none;
}
.det-scroll::-webkit-scrollbar { display: none; }
.det-scroll:active { cursor: grabbing; }

.det-track {
  display: flex;
  gap: 18px;
  padding: 0 8%;
  width: max-content;
}

.det-card {
  position: relative;
  width: 400px;
  aspect-ratio: 21 / 9;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 20px;
  overflow: hidden;
  flex-shrink: 0;
  transition: border-color 0.4s, transform 0.4s;
}

.det-card:hover {
  border-color: var(--ice);
  transform: translateY(-4px);
}

.det-card img {
  width: 100%; height: 100%;
  object-fit: cover;
  transition: transform 0.5s ease;
}

.det-card:hover img { transform: scale(1.04); }

.det-label {
  position: absolute;
  bottom: 0; left: 0; right: 0;
  padding: 20px;
  background: linear-gradient(to top, rgba(248,249,255,0.95) 0%, transparent 100%);
  font-size: 10px;
  font-weight: 300;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--text-dim);
  opacity: 0;
  transition: opacity 0.3s;
}
.det-card:hover .det-label { opacity: 1; }

.det-drag-hint {
  text-align: center;
  font-size: 9px;
  font-weight: 300;
  letter-spacing: 0.25em;
  text-transform: uppercase;
  color: var(--text-faint);
  margin-top: 24px;
}

/* ========================================
   FINAL COLLECTION SECTION
   ======================================== */
.final-section {
  position: relative;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 100px 8%;
  overflow: hidden;
  background: #EFF1FF;
}

#finalCanvas {
  position: absolute;
  inset: 0;
  z-index: 0;
}

.final-inner {
  position: relative;
  z-index: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 64px;
  width: 100%;
  max-width: 1200px;
}

.final-models {
  display: flex;
  align-items: flex-end;
  justify-content: center;
  gap: 24px;
  width: 100%;
}

.fm-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 14px;
}

.fm-wall img {
  width: 280px;
  aspect-ratio: 21 / 9;
  object-fit: cover;
  border-radius: 10px;
  filter: drop-shadow(0 20px 50px rgba(0,196,180,0.15));
  transition: filter 0.4s;
}

.fm-col img {
  width: 280px;
  aspect-ratio: 21 / 9;
  object-fit: cover;
  border-radius: 10px;
  filter: drop-shadow(0 20px 50px rgba(0,196,180,0.15));
  transition: filter 0.4s;
}

.fm-item:hover img {
  filter: drop-shadow(0 30px 70px rgba(0,196,180,0.32));
}

.fm-lbl {
  font-family: var(--font-d);
  font-size: 14px;
  font-weight: 200;
  letter-spacing: 0.1em;
}

.fm-sub {
  font-size: 9px;
  font-weight: 300;
  letter-spacing: 0.25em;
  text-transform: uppercase;
  color: var(--text-faint);
}

/* Final text */
.final-text {
  text-align: center;
}

.final-heading {
  font-family: var(--font-d);
  font-weight: 700;
  font-size: clamp(40px, 5.5vw, 80px);
  line-height: 0.92;
  letter-spacing: -0.02em;
  margin-bottom: 18px;
}

.final-sub {
  font-size: 13px;
  font-weight: 300;
  color: var(--text-dim);
  letter-spacing: 0.12em;
  line-height: 2;
  margin-bottom: 40px;
}

.final-btn {
  display: inline-flex;
  align-items: center;
  padding: 16px 44px;
  border: 1px solid var(--border2);
  border-radius: 100px;
  font-size: 11px;
  font-weight: 300;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--text-dim);
  transition: all 0.4s;
  cursor: none;
  position: relative;
  overflow: hidden;
}

.final-btn::before {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(circle at center, rgba(0,196,180,0.1) 0%, transparent 70%);
  opacity: 0;
  transition: opacity 0.4s;
}

.final-btn:hover {
  border-color: var(--ice);
  color: var(--ice);
  box-shadow: 0 0 40px rgba(0,196,180,0.2);
}

.final-btn:hover::before { opacity: 1; }

/* Footer */
.final-footer {
  position: absolute;
  bottom: 36px;
  text-align: center;
  z-index: 1;
}

.ff-logo {
  font-family: var(--font-d);
  font-weight: 200;
  font-size: 13px;
  letter-spacing: 0.55em;
  color: var(--text-faint);
  margin-bottom: 6px;
}

.ff-tagline {
  font-size: 9px;
  font-weight: 300;
  letter-spacing: 0.18em;
  color: rgba(26,24,64,0.3);
  text-transform: uppercase;
}

/* ========================================
   FEATURE BENTO SECTION
   ======================================== */
/* Кнопка раскрытия характеристик */
.feat-toggle-btn {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  position: absolute;
  bottom: 100px;
  left: 0;
  right: 0;
  margin: 0 auto;
  width: fit-content;
  white-space: nowrap;
  margin-top: 0;
  padding: 12px 24px;
  border: 1.5px solid rgba(255,255,255,0.5) !important;
  border-radius: 100px;
  background: transparent;
  color: #ffffff;
  font-family: var(--font-b);
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  cursor: none;
  transition: background 0.3s, border-color 0.3s, box-shadow 0.3s;
  position: relative;
  z-index: 3;
}

.feat-toggle-btn:hover {
  background: rgba(255,255,255,0.15);
  border-color: rgba(255,255,255,0.9) !important;
  box-shadow: 0 6px 28px rgba(255,255,255,0.15);
}

.feat-toggle-btn.open {
  background: rgba(255,255,255,0.2);
  border-color: #fff !important;
}

.feat-toggle-arrow {
  display: inline-block;
  font-style: normal;
  transition: transform 0.45s cubic-bezier(0.4,0,0.2,1);
  font-size: 14px;
}

.feat-toggle-btn.open .feat-toggle-arrow {
  transform: rotate(180deg);
}

/* feat-section — скрыт по умолчанию */
.feat-section {
  height: 0;
  overflow: hidden;
  opacity: 0;
  padding: 0 8%;
  background: #0b0928;
  position: relative;
  margin-top: -6px;
  box-shadow: 0 -8px 0 0 #0b0928;
}

.feat-glow-top {
  position: absolute;
  top: -180px; left: 35%;
  width: 700px; height: 700px;
  background: radial-gradient(circle, rgba(0,196,180,0.12) 0%, transparent 65%);
  border-radius: 50%;
  pointer-events: none;
}

.feat-glow-bot {
  position: absolute;
  bottom: -200px; right: 10%;
  width: 500px; height: 500px;
  background: radial-gradient(circle, rgba(59,58,138,0.25) 0%, transparent 65%);
  border-radius: 50%;
  pointer-events: none;
}

.feat-header {
  margin-bottom: 56px;
}

.feat-eyebrow {
  font-size: 10px;
  font-weight: 300;
  letter-spacing: 0.38em;
  text-transform: uppercase;
  color: var(--ice);
  margin-bottom: 14px;
}

.feat-title {
  font-family: var(--font-d);
  font-weight: 700;
  font-size: clamp(40px, 5vw, 72px);
  letter-spacing: -0.025em;
  line-height: 0.92;
  color: #ffffff;
}

/* BENTO GRID */
.feat-bento {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  grid-auto-rows: 170px;
  gap: 14px;
}

/* Base card */
.fc {
  background: rgba(255,255,255,0.04);
  border: 1px solid rgba(255,255,255,0.07);
  border-radius: 22px;
  padding: 28px;
  position: relative;
  overflow: hidden;
  transition: border-color 0.35s, background 0.35s, transform 0.35s;
  display: flex;
  flex-direction: column;
}

.fc::before {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(circle at 80% 20%, rgba(255,255,255,0.03) 0%, transparent 60%);
  pointer-events: none;
}

.fc:hover {
  border-color: rgba(0,196,180,0.35);
  background: rgba(255,255,255,0.07);
  transform: translateY(-3px);
}

/* HERO card — 2×2 */
.fc-hero {
  grid-column: span 2;
  grid-row: span 2;
  background: linear-gradient(135deg, rgba(0,196,180,0.12) 0%, rgba(59,58,138,0.2) 100%);
  border-color: rgba(0,196,180,0.2);
  padding: 36px;
  justify-content: space-between;
}

.fc-hero:hover {
  border-color: rgba(0,196,180,0.5);
  transform: none;
}

.fc-sup {
  font-size: 9px;
  letter-spacing: 0.3em;
  text-transform: uppercase;
  color: rgba(255,255,255,0.35);
}

.fc-bignum {
  font-family: var(--font-d);
  font-size: clamp(64px, 9vw, 110px);
  font-weight: 700;
  letter-spacing: -0.04em;
  color: #ffffff;
  line-height: 1;
  margin: 12px 0 0;
}

.fc-unit {
  font-size: 15px;
  font-weight: 300;
  letter-spacing: 0.15em;
  color: var(--ice);
  margin-top: 4px;
  margin-bottom: 20px;
}

.fc-desc {
  font-size: 12px;
  font-weight: 300;
  line-height: 1.75;
  color: rgba(255,255,255,0.38);
  letter-spacing: 0.02em;
}

/* STAT card — 1×1 */
.fc-stat {
  background: rgba(59,58,138,0.25);
  border-color: rgba(59,58,138,0.35);
  justify-content: flex-end;
}

.fc-snum {
  font-family: var(--font-d);
  font-size: clamp(36px, 4vw, 52px);
  font-weight: 700;
  letter-spacing: -0.03em;
  color: #ffffff;
  line-height: 1;
}

.fc-slbl {
  font-size: 9px;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: rgba(255,255,255,0.35);
  margin-top: 8px;
}

/* WIDE card — 2×1 */
.fc-wide {
  grid-column: span 2;
}

.fc-wide .fc-snum {
  font-size: clamp(44px, 5vw, 64px);
}

/* ICON card */
.fc-icon {
  justify-content: flex-start;
  gap: 0;
}

.fc-ico {
  width: 42px;
  height: 42px;
  color: var(--ice);
  margin-bottom: 16px;
  background: rgba(0,196,180,0.1);
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 10px;
  flex-shrink: 0;
}

.fc-ico svg {
  width: 100%;
  height: 100%;
  stroke: currentColor;
  fill: none;
  stroke-width: 1.6;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.fc-lbl {
  font-size: 13px;
  font-weight: 300;
  line-height: 1.55;
  color: rgba(255,255,255,0.65);
  letter-spacing: 0.02em;
  margin-top: auto;
}

/* Wide icon — 2×1 with horizontal layout */
.fc-wide-icon {
  grid-column: span 2;
  flex-direction: row;
  align-items: center;
  gap: 24px;
}

.fc-wide-icon .fc-ico {
  width: 56px;
  height: 56px;
  padding: 13px;
  border-radius: 16px;
  margin-bottom: 0;
  flex-shrink: 0;
}

.fc-wide-icon .fc-lbl {
  font-size: 14px;
  margin-top: 0;
}

.fc-wide-icon .fc-lbl strong {
  display: block;
  font-weight: 400;
  color: rgba(255,255,255,0.85);
  margin-bottom: 4px;
  font-size: 15px;
}

/* Teal accent card */
.fc-accent {
  background: rgba(0,196,180,0.08);
  border-color: rgba(0,196,180,0.2);
}

@media (max-width: 900px) {
  .feat-bento {
    grid-template-columns: repeat(2, 1fr);
    grid-auto-rows: 160px;
  }
  .fc-hero { grid-column: span 2; grid-row: span 2; }
  .fc-wide { grid-column: span 2; }
  .fc-wide-icon { grid-column: span 2; }
  .feat-section { padding: 80px 6%; }
}

@media (max-width: 600px) {
  .feat-bento { grid-template-columns: 1fr; grid-auto-rows: 140px; }
  .fc-hero { grid-column: span 1; grid-row: span 2; }
  .fc-wide, .fc-wide-icon { grid-column: span 1; }
  .fc-wide-icon { flex-direction: column; align-items: flex-start; }
}

/* ========================================
   LIGHTBOX
   ======================================== */
.lightbox {
  position: fixed;
  inset: 0;
  z-index: 9998;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.35s ease;
}

.lightbox.open {
  opacity: 1;
  pointer-events: auto;
}

.lb-backdrop {
  position: absolute;
  inset: 0;
  background: rgba(5,4,20,0.97);
  backdrop-filter: blur(6px);
  -webkit-backdrop-filter: blur(6px);
}

.lb-stage {
  position: relative;
  z-index: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  max-width: 88vw;
  max-height: 80vh;
}

.lb-img {
  max-width: 88vw;
  max-height: 80vh;
  object-fit: contain;
  border-radius: 12px;
  box-shadow: 0 40px 120px rgba(0,0,0,0.6);
  opacity: 0;
  transform: scale(0.94);
  transition: opacity 0.3s ease, transform 0.3s ease;
}

.lb-img.loaded {
  opacity: 1;
  transform: scale(1);
}

.lb-close {
  position: absolute;
  top: 24px; right: 24px;
  z-index: 2;
  width: 48px; height: 48px;
  border-radius: 50%;
  background: rgba(255,255,255,0.08);
  border: 1px solid rgba(255,255,255,0.15) !important;
  color: rgba(255,255,255,0.8);
  display: flex; align-items: center; justify-content: center;
  cursor: none;
  transition: background 0.3s, color 0.3s;
}
.lb-close:hover { background: rgba(255,255,255,0.15); color: #fff; }
.lb-close svg { width: 20px; height: 20px; }

.lb-arrow {
  position: absolute;
  top: 50%; transform: translateY(-50%);
  z-index: 2;
  width: 52px; height: 52px;
  border-radius: 50%;
  background: rgba(255,255,255,0.07);
  border: 1px solid rgba(255,255,255,0.12) !important;
  color: rgba(255,255,255,0.75);
  display: flex; align-items: center; justify-content: center;
  cursor: none;
  transition: background 0.3s, border-color 0.3s, color 0.3s;
}
.lb-arrow:hover {
  background: rgba(0,196,180,0.15);
  border-color: rgba(0,196,180,0.5) !important;
  color: var(--ice);
}
.lb-arrow svg { width: 22px; height: 22px; }
.lb-prev { left: 24px; }
.lb-next { right: 24px; }

.lb-footer {
  position: absolute;
  bottom: 28px; left: 50%;
  transform: translateX(-50%);
  z-index: 2;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 14px;
}

.lb-dots {
  display: flex;
  gap: 8px;
}

.lb-dot {
  width: 6px; height: 6px;
  border-radius: 50%;
  background: rgba(255,255,255,0.25);
  border: none !important;
  cursor: none;
  transition: background 0.3s, width 0.3s;
}
.lb-dot.active { background: var(--ice); width: 22px; border-radius: 3px; }

.lb-counter {
  font-family: var(--font-d);
  font-size: 13px; font-weight: 300;
  color: rgba(255,255,255,0.35);
  display: flex; gap: 6px; align-items: center;
}
.lb-sep { color: rgba(255,255,255,0.15); }

.standalone-marquee {
  background: var(--bg);
  padding: 0;
  margin-top: -3px;
}

.standalone-marquee .img-marquee {
  margin-top: 0;
  margin-bottom: 0;
  padding: 28px 0;
}

/* Кликабельные изображения */
.mq-img, .det-card {
  cursor: none;
}
.mq-img:hover { border-color: var(--ice) !important; }

/* ========================================
   SITE FOOTER
   ======================================== */
.site-footer {
  background: #080620;
  position: relative;
  overflow: hidden;
  padding: 80px 8% 0;
}

.footer-glow {
  position: absolute;
  top: -150px; left: 50%;
  transform: translateX(-50%);
  width: 800px; height: 400px;
  background: radial-gradient(ellipse, rgba(0,196,180,0.07) 0%, transparent 65%);
  pointer-events: none;
}

/* TOP ROW */
.footer-top {
  display: grid;
  grid-template-columns: 1.2fr 2fr 1fr;
  gap: 60px;
  padding-bottom: 60px;
}

.footer-logo {
  height: 44px;
  width: auto;
  display: block;
  filter: brightness(0) invert(1);
  opacity: 0.85;
  margin-bottom: 20px;
}

.footer-desc {
  font-size: 13px;
  font-weight: 300;
  line-height: 1.8;
  color: rgba(255,255,255,0.35);
  letter-spacing: 0.03em;
}

/* LINKS */
.footer-links {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 40px;
}

.footer-col-title {
  font-size: 10px;
  font-weight: 600;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--ice);
  margin-bottom: 20px;
}

.footer-link {
  display: block;
  font-size: 13px;
  font-weight: 300;
  color: rgba(255,255,255,0.4);
  text-decoration: none;
  margin-bottom: 12px;
  letter-spacing: 0.03em;
  cursor: none;
  transition: color 0.3s;
}
.footer-link:hover { color: rgba(255,255,255,0.85); }

/* CTA BLOCK */
.footer-cta-block {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 24px;
}

.footer-cta-text {
  font-size: 14px;
  font-weight: 400;
  line-height: 1.7;
  color: rgba(255,255,255,0.55);
}

.footer-btn {
  display: inline-flex;
  align-items: center;
  padding: 13px 28px;
  background: var(--ice);
  color: #fff;
  border-radius: 100px;
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  text-decoration: none;
  cursor: none;
  transition: background 0.3s, box-shadow 0.3s, transform 0.3s;
}
.footer-btn:hover {
  background: #00aaa0;
  box-shadow: 0 8px 28px rgba(0,196,180,0.35);
  transform: translateY(-2px);
}

/* DIVIDER */
.footer-divider {
  height: 1px;
  background: rgba(255,255,255,0.06);
  margin: 0 0 28px;
}

/* BOTTOM ROW */
.footer-bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-bottom: 32px;
  flex-wrap: wrap;
  gap: 12px;
}

.footer-copy {
  font-size: 11px;
  font-weight: 300;
  color: rgba(255,255,255,0.2);
  letter-spacing: 0.05em;
}

.footer-models-row {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 11px;
  font-weight: 300;
  color: rgba(255,255,255,0.18);
  letter-spacing: 0.08em;
}

.footer-dot { color: var(--ice); opacity: 0.5; }

.footer-tagline {
  font-size: 10px;
  font-weight: 300;
  letter-spacing: 0.25em;
  text-transform: uppercase;
  color: rgba(255,255,255,0.15);
}

@media (max-width: 900px) {
  .footer-top { grid-template-columns: 1fr; gap: 40px; }
  .footer-links { grid-template-columns: repeat(2, 1fr); }
  .footer-bottom { flex-direction: column; align-items: flex-start; }
  .footer-models-row { display: none; }
}

/* ========================================
   SCROLLBAR
   ======================================== */
::-webkit-scrollbar { width: 2px; }
::-webkit-scrollbar-track { background: var(--bg); }
::-webkit-scrollbar-thumb { background: var(--border2); border-radius: 2px; }

/* ========================================
   RESPONSIVE
   ======================================== */
@media (max-width: 900px) {
  .nav-links { display: none; }

  .hs-content { left: 6%; max-width: 88%; }
  .hs-counter { display: none; }
  .hs-title { font-size: clamp(56px, 13vw, 100px); }

  .smart-grid {
    grid-template-columns: 1fr;
    gap: 48px;
  }

  .product-section.rev .product-grid {
    justify-content: flex-start;
  }

  .col-grid { min-height: 100vh; }

  .product-section::after {
    background: linear-gradient(to bottom, rgba(248,249,255,0.85) 0%, rgba(248,249,255,0.6) 60%, rgba(248,249,255,0.2) 100%);
  }
  .product-section.rev::after {
    background: linear-gradient(to bottom, rgba(248,249,255,0.85) 0%, rgba(248,249,255,0.6) 60%, rgba(248,249,255,0.2) 100%);
  }

  .product-grid {
    padding: 100px 6% 60px;
    min-height: 100vh;
  }

  .final-models {
    gap: 12px;
    flex-wrap: wrap;
  }
  .fm-wall img { width: 160px; aspect-ratio: 21/9; }
  .fm-col img  { width: 160px; aspect-ratio: 21/9; }

  .float-chip { display: none; }
}

@media (max-width: 600px) {
  .hero-content { padding-left: 6%; }
  .product-section { padding: 100px 6% 60px; }
  .det-track { padding: 0 6%; }
  .det-header { padding: 0 6%; }
  .smart-grid { padding: 0; }
}