/* ========================================================================
   IRSEN LED — Complete Stylesheet
   Light, Corporate, Clean — Professional Design
   ======================================================================== */

/* ------------------------------------------------------------------
   1. CSS Custom Properties
   ------------------------------------------------------------------ */
:root {
  --orange: #FC922C;
  --orange-hover: #e07d1e;
  --orange-light: rgba(252, 146, 44, 0.08);
  --orange-glow: rgba(252, 146, 44, 0.2);
  --dark: #1A1A1A;
  --darker: #111111;
  --darkest: #0d0d0d;
  --bg: #FFFFFF;
  --bg-2: #F7F7F8;
  --bg-3: #EFEFEF;
  --bg-card: #FFFFFF;
  --border: rgba(0, 0, 0, 0.08);
  --border-hover: rgba(252, 146, 44, 0.3);
  --text: #1A1A1A;
  --text-2: #444444;
  --text-3: #777777;
  --radius: 12px;
  --radius-lg: 20px;
  --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  --shadow: 0 2px 16px rgba(0, 0, 0, 0.06);
  --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.08);
  --shadow-heavy: 0 12px 48px rgba(0, 0, 0, 0.15);
}

/* ------------------------------------------------------------------
   2. Reset & Base
   ------------------------------------------------------------------ */
*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  color: var(--text);
  background: var(--bg);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

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

a {
  text-decoration: none;
  color: inherit;
}

ul,
ol {
  list-style: none;
}

button {
  font-family: inherit;
}

/* ------------------------------------------------------------------
   3. Container
   ------------------------------------------------------------------ */
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
}

/* ------------------------------------------------------------------
   4. Reveal Animation
   ------------------------------------------------------------------ */
.reveal {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.7s cubic-bezier(0.4, 0, 0.2, 1),
              transform 0.7s cubic-bezier(0.4, 0, 0.2, 1);
}

.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}

/* ------------------------------------------------------------------
   5. Topbar (DARK — kept)
   ------------------------------------------------------------------ */
.topbar {
  background: var(--darkest);
  color: #fff;
  font-size: 13px;
  padding: 8px 0;
  border-bottom: 1px solid rgba(255, 255, 255, 0.05);
}

.topbar__inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.topbar__left,
.topbar__right {
  display: flex;
  align-items: center;
  gap: 16px;
}

.topbar__item {
  display: flex;
  align-items: center;
  gap: 6px;
  color: rgba(255, 255, 255, 0.7);
}

.topbar__divider {
  color: rgba(255, 255, 255, 0.3);
}

.topbar__callback {
  background: var(--orange);
  color: #fff;
  padding: 6px 16px;
  border-radius: 100px;
  font-weight: 600;
  font-size: 12px;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  border: none;
  cursor: pointer;
  transition: background var(--transition), box-shadow var(--transition);
  animation: callbackPulse 2.5s ease-in-out infinite;
}

.topbar__callback:hover {
  background: var(--orange-hover);
}

@keyframes callbackPulse {
  0%, 100% {
    box-shadow: 0 0 0 0 rgba(252, 146, 44, 0.5);
  }
  50% {
    box-shadow: 0 0 0 8px rgba(252, 146, 44, 0);
  }
}

/* ------------------------------------------------------------------
   6. Header (LIGHT — white background, dark links)
   ------------------------------------------------------------------ */
.header {
  position: sticky;
  top: 0;
  z-index: 1000;
  padding: 16px 0;
  background: rgba(255, 255, 255, 0.97);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  transition: background var(--transition),
              padding var(--transition),
              box-shadow var(--transition);
  box-shadow: 0 1px 0 var(--border);
}

.header.scrolled {
  background: rgba(255, 255, 255, 0.97);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  padding: 10px 0;
  box-shadow: 0 4px 24px rgba(0, 0, 0, 0.1);
}

.header__inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.header__logo-img {
  height: 36px;
}

.header__nav {
  display: flex;
  align-items: center;
  gap: 28px;
}

/* --- Nav links: dark text on white header --- */
.header__link {
  font-size: 14px;
  font-weight: 500;
  color: var(--text-2);
  position: relative;
  transition: color var(--transition);
}

.header__link::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--orange);
  border-radius: 2px;
  transition: width var(--transition);
}

.header__link:hover {
  color: var(--text);
}

.header__link:hover::after {
  width: 100%;
}

/* Scrolled state — same dark links */
.header.scrolled .header__link {
  color: var(--text-3);
}

.header.scrolled .header__link:hover {
  color: var(--text);
}

.header__link--cta {
  background: var(--orange);
  color: #fff;
  padding: 10px 24px;
  border-radius: 8px;
  transition: background var(--transition), transform var(--transition);
}

.header__link--cta:hover {
  background: var(--orange-hover);
  color: #fff;
  transform: translateY(-1px);
}

.header__link--cta::after {
  display: none;
}

.header.scrolled .header__link--cta {
  color: #fff;
}

/* Burger */
.header__burger {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px;
  z-index: 1001;
}

.header__burger span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--text);
  border-radius: 2px;
  transition: transform var(--transition),
              opacity var(--transition),
              background var(--transition);
}

.header.scrolled .header__burger span {
  background: var(--text);
}

.header__burger.active span {
  background: #ffffff !important;
}

.header__burger.active span:nth-child(1) {
  transform: rotate(45deg) translate(5px, 5px);
}

.header__burger.active span:nth-child(2) {
  opacity: 0;
}

.header__burger.active span:nth-child(3) {
  transform: rotate(-45deg) translate(5px, -5px);
}

/* ------------------------------------------------------------------
   7. Hero Slider — FULL SCREEN, CINEMATIC (DARK — kept)
   ------------------------------------------------------------------ */
.hero-slider {
  position: relative;
  width: 100%;
  height: 85vh;
  min-height: 480px;
  max-height: 660px;
  overflow: hidden;
  background: #000;
}

.hero-slide {
  position: absolute;
  inset: 0;
  opacity: 0;
  transition: opacity 1s ease;
  z-index: 0;
}

.hero-slide.active {
  opacity: 1;
  z-index: 1;
}

.hero-slide__bg {
  position: absolute;
  inset: 0;
}

.hero-slide__bg img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.hero-slide__overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(to right, rgba(0, 0, 0, 0.6) 0%, rgba(0, 0, 0, 0.15) 100%),
    linear-gradient(to top, rgba(0, 0, 0, 0.6) 0%, transparent 40%);
}

.hero-slide__content {
  position: relative;
  z-index: 2;
  height: 100%;
  display: flex;
  flex-direction: column;
  justify-content: center;
  color: #fff;
  max-width: 700px;
}

.hero-slide__tag {
  display: inline-block;
  background: rgba(252, 146, 44, 0.15);
  color: var(--orange);
  font-size: 13px;
  font-weight: 700;
  padding: 8px 20px;
  border-radius: 100px;
  margin-bottom: 24px;
  text-transform: uppercase;
  letter-spacing: 0.15em;
  width: fit-content;
  border: 1px solid rgba(252, 146, 44, 0.25);
}

.hero-slide__title {
  font-size: clamp(3rem, 6vw, 5rem);
  font-weight: 900;
  line-height: 1.05;
  margin-bottom: 24px;
  letter-spacing: -0.03em;
}

.hero-slide__features {
  display: flex;
  gap: 24px;
  margin-bottom: 40px;
  font-size: 16px;
  opacity: 0.85;
}

.hero-slide__features span {
  display: flex;
  align-items: center;
  gap: 10px;
}

.hero-slide__features span::before {
  content: '';
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--orange);
  flex-shrink: 0;
  box-shadow: 0 0 8px rgba(252, 146, 44, 0.5);
}

/* Slider Arrows */
.hero-slider__arrow {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  z-index: 10;
  width: 56px;
  height: 56px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.1);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  border: 1px solid rgba(255, 255, 255, 0.15);
  color: #fff;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all var(--transition);
}

.hero-slider__arrow:hover {
  background: rgba(252, 146, 44, 0.3);
  border-color: rgba(252, 146, 44, 0.5);
}

.hero-slider__arrow--prev {
  left: 32px;
}

.hero-slider__arrow--next {
  right: 32px;
}

/* Slider Dots */
.hero-slider__dots {
  position: absolute;
  bottom: 40px;
  left: 50%;
  transform: translateX(-50%);
  z-index: 10;
  display: flex;
  gap: 12px;
}

.hero-slider__dot {
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.25);
  border: 2px solid rgba(255, 255, 255, 0.3);
  cursor: pointer;
  transition: all var(--transition);
}

.hero-slider__dot.active {
  background: var(--orange);
  border-color: var(--orange);
  width: 36px;
  border-radius: 6px;
  box-shadow: 0 0 16px rgba(252, 146, 44, 0.5);
}

/* ------------------------------------------------------------------
   8. Stats — LIGHT, PROMINENT
   ------------------------------------------------------------------ */
.stats {
  background: var(--bg-2);
  color: var(--text);
  padding: 64px 0;
  position: relative;
  border-top: 3px solid var(--orange);
}

.stats__tagline {
  text-align: center;
  font-size: 14px;
  color: var(--text-3);
  margin-bottom: 40px;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  font-weight: 600;
}

.stats__grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
  text-align: center;
}

.stats__icon {
  color: var(--orange);
  margin: 0 auto 12px;
}

.stats__number {
  font-size: 3.8rem;
  font-weight: 900;
  color: var(--orange);
  line-height: 1;
  letter-spacing: -0.02em;
}

.stats__plus {
  font-size: 2.5rem;
  font-weight: 900;
  color: var(--orange);
}

.stats__label {
  font-size: 14px;
  margin-top: 10px;
  color: var(--text-3);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  font-weight: 500;
}

/* ------------------------------------------------------------------
   9. Section Header — BIGGER, BOLDER
   ------------------------------------------------------------------ */
.section-header {
  text-align: center;
  margin-bottom: 64px;
}

.section-header--left {
  text-align: left;
}

.section-header__tag {
  display: inline-block;
  font-size: 12px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.2em;
  color: var(--orange);
  margin-bottom: 16px;
  padding: 8px 20px;
  background: var(--orange-light);
  border-radius: 100px;
  border: 1px solid rgba(252, 146, 44, 0.15);
}

.section-header__title {
  font-size: clamp(2rem, 5vw, 3.5rem);
  font-weight: 900;
  letter-spacing: -0.03em;
  margin-bottom: 20px;
  color: var(--text);
  line-height: 1.1;
}

.section-header__desc {
  font-size: 1.05rem;
  color: var(--text-3);
  max-width: 580px;
  margin: 0 auto;
  line-height: 1.7;
}

.section-header--left .section-header__desc {
  margin: 0;
}

/* ------------------------------------------------------------------
   10. Catalog — LIGHT BACKGROUND, TALL CARDS
   ------------------------------------------------------------------ */
.catalog {
  padding: 120px 0;
  background: var(--bg);
}

.catalog__grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
}

.catalog__card {
  position: relative;
  border-radius: var(--radius-lg);
  overflow: hidden;
  aspect-ratio: 3 / 4;
  display: block;
  border: 2px solid transparent;
  transition: border-color var(--transition), box-shadow var(--transition);
}

.catalog__card:hover {
  border-color: var(--orange);
  box-shadow: 0 0 32px rgba(252, 146, 44, 0.2), 0 8px 32px rgba(0, 0, 0, 0.15);
}

.catalog__card-img {
  position: absolute;
  inset: 0;
}

.catalog__card-img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.6s ease;
}

.catalog__card:hover .catalog__card-img img {
  transform: scale(1.08);
}

.catalog__card-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, rgba(0, 0, 0, 0.9) 0%, rgba(0, 0, 0, 0.4) 40%, rgba(0, 0, 0, 0.15) 100%);
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  padding: 32px;
  z-index: 2;
  transition: background var(--transition);
}

.catalog__card:hover .catalog__card-overlay {
  background: linear-gradient(to top, rgba(0, 0, 0, 0.95) 0%, rgba(0, 0, 0, 0.5) 40%, rgba(0, 0, 0, 0.2) 100%);
}

.catalog__card-overlay h3 {
  color: #fff;
  font-size: 1.4rem;
  font-weight: 800;
  margin-bottom: 14px;
  line-height: 1.2;
}

.catalog__card-btn {
  display: inline-block;
  background: var(--orange);
  color: #fff;
  padding: 10px 24px;
  border-radius: 8px;
  font-size: 14px;
  font-weight: 600;
  transition: background var(--transition), transform var(--transition);
  width: fit-content;
}

.catalog__card-btn:hover {
  background: var(--orange-hover);
  transform: translateY(-1px);
}

/* ------------------------------------------------------------------
   11. Products — LIGHT BACKGROUND, WHITE CARDS
   ------------------------------------------------------------------ */
.products {
  padding: 60px 0 120px;
  background: var(--bg-2);
}

.products__tabs {
  display: flex;
  gap: 8px;
  margin-bottom: 48px;
  flex-wrap: wrap;
  justify-content: center;
  position: sticky;
  top: 70px;
  z-index: 50;
  background: rgba(247, 247, 248, 0.95);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  padding: 16px 0;
  border-radius: var(--radius);
}

.products__tab {
  padding: 12px 28px;
  border-radius: 100px;
  background: var(--bg);
  border: 1.5px solid var(--border);
  font-family: inherit;
  font-size: 14px;
  font-weight: 600;
  color: var(--text-3);
  cursor: pointer;
  transition: all var(--transition);
}

.products__tab:hover {
  border-color: var(--orange);
  color: var(--orange);
  background: rgba(252, 146, 44, 0.04);
}

.products__tab.active {
  background: var(--orange);
  color: #fff;
  border-color: var(--orange);
  box-shadow: 0 4px 16px rgba(252, 146, 44, 0.3);
}

.products__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
}

/* Product Card — White, clean */
.product-card {
  background: var(--bg-card);
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid var(--border);
  transition: all var(--transition);
  display: flex;
  flex-direction: column;
  box-shadow: var(--shadow);
}

.product-card:hover {
  border-color: var(--border-hover);
  transform: translateY(-6px);
  box-shadow: var(--shadow-heavy);
}

.product-card.hidden {
  display: none;
}

.product-card__image {
  position: relative;
  aspect-ratio: 4 / 3;
  overflow: hidden;
  background: var(--bg-3);
}

.product-card__image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.6s ease;
}

.product-card:hover .product-card__image img {
  transform: scale(1.06);
}

.product-card__badge {
  position: absolute;
  top: 16px;
  left: 16px;
  background: var(--orange);
  color: #fff;
  font-size: 12px;
  font-weight: 700;
  padding: 6px 16px;
  border-radius: 100px;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.product-card__body {
  padding: 32px;
  flex: 1;
  display: flex;
  flex-direction: column;
}

.product-card__title {
  font-size: 1.3rem;
  font-weight: 800;
  margin-bottom: 6px;
  color: var(--text);
}

.product-card__series {
  font-size: 13px;
  color: var(--orange);
  font-weight: 700;
  margin-bottom: 14px;
  text-transform: uppercase;
  letter-spacing: 0.03em;
}

.product-card__desc {
  font-size: 14px;
  color: var(--text-3);
  line-height: 1.7;
  margin-bottom: 18px;
}

.product-card__features {
  list-style: none;
  margin-bottom: 24px;
  flex: 1;
}

.product-card__features li {
  font-size: 13px;
  color: var(--text-2);
  padding: 6px 0 6px 22px;
  position: relative;
}

.product-card__features li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 13px;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--orange);
  opacity: 0.6;
}

/* Collapsible details */
.product-card__details {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.4s ease, opacity 0.3s ease;
  opacity: 0;
}

.product-card.expanded .product-card__details {
  max-height: 500px;
  opacity: 1;
}

.product-card__toggle {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  width: 100%;
  padding: 10px;
  margin-bottom: 16px;
  background: var(--bg-2);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  font-family: inherit;
  font-size: 13px;
  font-weight: 600;
  color: var(--orange);
  cursor: pointer;
  transition: var(--transition);
}

.product-card__toggle:hover {
  background: var(--orange-light);
  border-color: var(--orange);
}

.product-card__toggle svg {
  transition: transform 0.3s ease;
}

.product-card.expanded .product-card__toggle svg {
  transform: rotate(180deg);
}

.product-card.expanded .product-card__toggle .toggle-text::after {
  content: none;
}

.product-card.expanded .toggle-text {
  font-size: 0;
}

.product-card.expanded .toggle-text::after {
  content: '\u0421\u043a\u0440\u044b\u0442\u044c';
  font-size: 13px;
}

/* ------------------------------------------------------------------
   12. Portfolio — LIGHT BACKGROUND, dark overlays on images
   ------------------------------------------------------------------ */
.portfolio {
  padding: 120px 0;
  background: var(--bg);
}

.portfolio .section-header__title {
  color: var(--text);
}

.portfolio .section-header__desc {
  color: var(--text-3);
}

/* Portfolio Tabs */
.portfolio__tabs {
  display: flex;
  gap: 8px;
  margin-bottom: 40px;
  flex-wrap: wrap;
  justify-content: center;
}

/* Portfolio Grid */
.portfolio__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.portfolio-card {
  position: relative;
  background: var(--bg-card);
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid var(--border);
  cursor: pointer;
  transition: all var(--transition);
  box-shadow: var(--shadow);
  display: flex;
  flex-direction: column;
}

.portfolio-card.hidden {
  display: none;
}

.portfolio-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
  border-color: var(--border-hover);
}

.portfolio-card__image {
  position: relative;
  aspect-ratio: 4/3;
  overflow: hidden;
  background: var(--bg-3);
}

.portfolio-card__image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.6s ease;
}

.portfolio-card:hover .portfolio-card__image img {
  transform: scale(1.05);
}

.portfolio-card__overlay {
  position: absolute;
  inset: 0;
  background: rgba(0, 0, 0, 0.6);
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  transition: opacity 0.3s ease;
}

.portfolio-card:hover .portfolio-card__overlay {
  opacity: 1;
}

.portfolio-card__btn {
  background: transparent;
  color: #fff;
  font-size: 14px;
  font-weight: 600;
  padding: 10px 24px;
  border-radius: 100px;
  border: 1.5px solid #fff;
  transform: translateY(15px);
  transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1), background 0.3s, color 0.3s;
}

.portfolio-card:hover .portfolio-card__btn {
  transform: translateY(0);
}

.portfolio-card__btn:hover {
  background: #fff;
  color: var(--dark);
}

.portfolio-card__info {
  padding: 24px;
}

.portfolio-card__cat {
  font-size: 12px;
  font-weight: 600;
  color: var(--orange);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin-bottom: 8px;
  display: block;
}

.portfolio-card__info h3 {
  font-size: 1.2rem;
  font-weight: 700;
  color: var(--text);
  margin: 0;
}

/* Portfolio Popup */
.portfolio-popup {
  position: fixed;
  inset: 0;
  z-index: 2000;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 24px;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.3s ease;
}

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

.portfolio-popup__overlay {
  position: absolute;
  inset: 0;
  background: rgba(0, 0, 0, 0.85);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
}

.portfolio-popup__content {
  position: relative;
  background: var(--bg-card);
  width: 100%;
  max-width: 1000px;
  max-height: 90vh;
  border-radius: var(--radius-lg);
  overflow: hidden;
  display: flex;
  flex-direction: column;
  transform: translateY(20px);
  transition: transform 0.4s cubic-bezier(0.4, 0, 0.2, 1);
  box-shadow: 0 20px 40px rgba(0,0,0,0.5);
}

.portfolio-popup.open .portfolio-popup__content {
  transform: translateY(0);
}

.portfolio-popup__close {
  position: absolute;
  top: 16px;
  right: 16px;
  z-index: 10;
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: rgba(0,0,0,0.1);
  border: none;
  color: var(--text);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: background 0.2s, color 0.2s;
}

.portfolio-popup__close:hover {
  background: var(--orange);
  color: #fff;
}

.portfolio-popup__layout {
  display: flex;
  flex-direction: row;
  height: 100%;
  overflow-y: auto;
}

.portfolio-popup__gallery {
  flex: 1.5;
  background: #000;
  position: relative;
  min-height: 300px;
}

.portfolio-swiper {
  width: 100%;
  height: 100%;
}

.portfolio-swiper .swiper-slide img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.portfolio-swiper .swiper-button-next,
.portfolio-swiper .swiper-button-prev {
  width: 44px;
  height: 44px;
  background: rgba(255,255,255,0.15);
  backdrop-filter: blur(8px);
  border-radius: 50%;
  color: #fff;
  border: 1px solid rgba(255,255,255,0.2);
  transition: background 0.3s, border-color 0.3s;
}

.portfolio-swiper .swiper-button-next:hover,
.portfolio-swiper .swiper-button-prev:hover {
  background: rgba(252, 146, 44, 0.4);
  border-color: var(--orange);
}

.portfolio-swiper .swiper-button-next::after,
.portfolio-swiper .swiper-button-prev::after {
  font-size: 16px;
  font-weight: bold;
}

.portfolio-swiper .swiper-pagination-bullet {
  background: rgba(255,255,255,0.5);
  opacity: 1;
}

.portfolio-swiper .swiper-pagination-bullet-active {
  background: var(--orange);
}

.portfolio-popup__info {
  flex: 1;
  padding: 40px 32px;
  display: flex;
  flex-direction: column;
  background: var(--bg);
}

.portfolio-popup__meta {
  font-size: 13px;
  font-weight: 600;
  color: var(--orange);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin-bottom: 12px;
}

.portfolio-popup__title {
  font-size: 1.8rem;
  font-weight: 800;
  color: var(--text);
  margin-bottom: 24px;
  line-height: 1.2;
}

.portfolio-popup__desc {
  font-size: 15px;
  color: var(--text-2);
  line-height: 1.7;
  flex: 1;
  margin-bottom: 32px;
  white-space: pre-line;
}

/* Next/Prev Project Navigation in Popup */
.portfolio-popup__nav {
  display: flex;
  justify-content: space-between;
  border-top: 1px solid var(--border);
  padding-top: 24px;
}

.portfolio-popup__nav-btn {
  background: transparent;
  border: none;
  font-size: 14px;
  font-weight: 600;
  color: var(--text-3);
  display: flex;
  align-items: center;
  gap: 8px;
  cursor: pointer;
  transition: color 0.2s;
  padding: 8px 0;
}

.portfolio-popup__nav-btn:hover {
  color: var(--orange);
}

/* Card Swiper Overrides */
.card-swiper {
  width: 100%;
  height: 100%;
}

.card-trigger {
  cursor: pointer;
}

.card-swiper-prev,
.card-swiper-next {
  width: 32px !important;
  height: 32px !important;
  background: rgba(255,255,255,0.7) !important;
  backdrop-filter: blur(4px);
  border-radius: 50%;
  color: var(--dark) !important;
  transition: all 0.3s ease;
  opacity: 0;
}

.portfolio-card:hover .card-swiper-prev,
.portfolio-card:hover .card-swiper-next {
  opacity: 1;
}

.card-swiper-prev:hover,
.card-swiper-next:hover {
  background: var(--orange) !important;
  color: #fff !important;
}

.card-swiper-prev::after,
.card-swiper-next::after {
  font-size: 12px !important;
  font-weight: bold;
}

/* ------------------------------------------------------------------
   13. Testimonials — LIGHT BACKGROUND, WHITE CARDS
   ------------------------------------------------------------------ */
.testimonials {
  padding: 120px 0;
  background: var(--bg-2);
}

.testimonials .section-header__title {
  color: var(--text);
}

.testimonials .section-header__desc {
  color: var(--text-3);
}

.testimonials__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.testimonial-card {
  padding: 28px;
  background: var(--bg-card);
  border-radius: var(--radius-lg);
  border: 1px solid var(--border);
  box-shadow: var(--shadow);
  display: flex;
  flex-direction: column;
  transition: all var(--transition);
  min-width: 0;
}

.testimonial-card:hover {
  border-color: var(--border-hover);
  box-shadow: var(--shadow-heavy);
}

.testimonial-card--hidden {
  display: none;
}

.testimonial-card__header {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 20px;
}

.testimonial-card__avatar {
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: var(--orange);
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 800;
  font-size: 18px;
  flex-shrink: 0;
  overflow: hidden;
}

.testimonial-card__avatar img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.testimonial-card__author-info {
  display: flex;
  flex-direction: column;
  flex: 1;
  min-width: 0;
}

.testimonial-card__author-info strong {
  display: block;
  font-size: 14px;
  font-weight: 700;
  color: var(--text);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.testimonial-card__author-info span {
  font-size: 12px;
  color: var(--text-3);
}

.testimonial-card__stars {
  color: var(--orange);
  font-size: 14px;
  letter-spacing: 2px;
  flex-shrink: 0;
}

.testimonial-card__text-wrap {
  max-height: 4.5em;
  overflow: hidden;
  position: relative;
  transition: max-height 0.4s ease;
}

.testimonial-card__text-wrap::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  height: 2em;
  background: linear-gradient(transparent, var(--bg-card));
  transition: opacity 0.3s ease;
}

.testimonial-card.expanded .testimonial-card__text-wrap {
  max-height: 800px;
}

.testimonial-card.expanded .testimonial-card__text-wrap::after {
  opacity: 0;
}

.testimonial-card__text {
  font-size: 14px;
  line-height: 1.7;
  color: var(--text-2);
  margin: 0;
}

.testimonial-card__expand {
  display: flex;
  align-items: center;
  gap: 4px;
  margin-top: 12px;
  padding: 0;
  background: none;
  border: none;
  font-family: inherit;
  font-size: 13px;
  font-weight: 600;
  color: var(--orange);
  cursor: pointer;
  transition: color var(--transition);
}

.testimonial-card__expand:hover {
  color: var(--orange-hover);
}

.testimonial-card__expand svg {
  transition: transform 0.3s ease;
}

.testimonial-card.expanded .testimonial-card__expand svg {
  transform: rotate(180deg);
}

.testimonial-card.expanded .expand-text {
  font-size: 0;
}

.testimonial-card.expanded .expand-text::after {
  content: 'Скрыть';
  font-size: 13px;
}

.testimonials__more {
  text-align: center;
  margin-top: 32px;
}


/* ------------------------------------------------------------------
   13b. Partners — LOGO GRID
   ------------------------------------------------------------------ */
.partners {
  padding: 80px 0;
  background: var(--bg-2);
}

.partners__grid {
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  gap: 24px;
  align-items: center;
}

.partners__item {
  background: var(--bg-card);
  border-radius: var(--radius);
  border: 1px solid var(--border);
  padding: 20px;
  display: flex;
  align-items: center;
  justify-content: center;
  aspect-ratio: 1;
  transition: var(--transition);
  overflow: hidden;
}

.partners__item:hover {
  border-color: var(--border-hover);
  box-shadow: var(--shadow-lg);
  transform: translateY(-4px);
}

.partners__item img {
  max-width: 100%;
  max-height: 100%;
  object-fit: contain;
  transition: var(--transition);
}

.partners__item:hover img {
  transform: scale(1.05);
}

@media (max-width: 1024px) {
  .partners__grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

@media (max-width: 600px) {
  .partners__grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 12px;
  }
  .partners__item {
    padding: 16px;
  }
}

/* ------------------------------------------------------------------
   14. Why Us — LIGHT, WHITE CARDS WITH BORDER
   ------------------------------------------------------------------ */
.why-us {
  padding: 120px 0;
  background: var(--bg);
}

.why-us .section-header__title {
  color: var(--text);
}

.why-us .section-header__desc {
  color: var(--text-3);
}

.why-us__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
}

.why-us__card {
  background: var(--bg-card);
  border-radius: var(--radius-lg);
  padding: 48px 40px;
  border: 1px solid var(--border);
  transition: all var(--transition);
  text-align: center;
  box-shadow: var(--shadow);
}

.why-us__card:hover {
  border-color: var(--border-hover);
  transform: translateY(-6px);
  box-shadow: var(--shadow-heavy);
}

.why-us__icon {
  width: 64px;
  height: 64px;
  border-radius: 50%;
  background: var(--orange-light);
  color: var(--orange);
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 24px;
  transition: all var(--transition);
}

.why-us__card:hover .why-us__icon {
  background: var(--orange);
  color: #fff;
  transform: scale(1.05);
}

.why-us__card h3 {
  font-size: 1.25rem;
  font-weight: 800;
  margin-bottom: 14px;
  color: var(--text);
}

.why-us__card p {
  font-size: 14px;
  color: var(--text-3);
  line-height: 1.7;
}

/* ------------------------------------------------------------------
   15. How We Work (Steps) — LIGHT BACKGROUND
   ------------------------------------------------------------------ */
.how-we-work {
  padding: 120px 0;
  background: var(--bg-2);
}

.how-we-work .section-header__title {
  color: var(--text);
}

.how-we-work .section-header__desc {
  color: var(--text-3);
}

.steps {
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  gap: 16px;
  position: relative;
}

.step {
  text-align: center;
  padding: 24px 16px;
  position: relative;
}

.step__number {
  width: 64px;
  height: 64px;
  border-radius: 50%;
  background: var(--orange);
  color: #fff;
  font-size: 1.6rem;
  font-weight: 900;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 24px;
  position: relative;
  z-index: 2;
  box-shadow: 0 4px 20px rgba(252, 146, 44, 0.35);
}

.step__title {
  font-size: 15px;
  font-weight: 700;
  margin-bottom: 10px;
  color: var(--text);
}

.step__desc {
  font-size: 13px;
  color: var(--text-3);
  line-height: 1.6;
}

.step:not(:last-child)::after {
  content: '';
  position: absolute;
  top: 56px;
  left: 60%;
  width: 80%;
  height: 2px;
  background: linear-gradient(to right, var(--bg-3), var(--border));
  z-index: 1;
}

/* ------------------------------------------------------------------
   16. Articles — LIGHT BACKGROUND, WHITE CARDS
   ------------------------------------------------------------------ */
.articles {
  padding: 120px 0;
  background: var(--bg);
}

.articles .section-header__title {
  color: var(--text);
}

.articles .section-header__desc {
  color: var(--text-3);
}

.articles__grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
}

.article-card {
  display: flex;
  flex-direction: column;
  background: var(--bg-card);
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid var(--border);
  transition: all var(--transition);
  box-shadow: var(--shadow);
  cursor: pointer;
}

.article-card:hover {
  border-color: var(--border-hover);
  transform: translateY(-4px);
  box-shadow: var(--shadow-heavy);
}

.article-card__image {
  aspect-ratio: 16 / 9;
  overflow: hidden;
  background: var(--bg-3);
}

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

.article-card:hover .article-card__image img {
  transform: scale(1.05);
}

.article-card__body {
  padding: 28px;
  flex: 1;
  display: flex;
  flex-direction: column;
}

.article-card__tag {
  display: inline-block;
  font-size: 11px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--orange);
  background: var(--orange-light);
  padding: 4px 12px;
  border-radius: 100px;
  margin-bottom: 16px;
  align-self: flex-start;
}

.article-card h3 {
  font-size: 1.2rem;
  font-weight: 700;
  margin-bottom: 12px;
  color: var(--text);
  line-height: 1.4;
}

.article-card p {
  font-size: 14px;
  color: var(--text-3);
  line-height: 1.7;
  margin-bottom: 20px;
  flex: 1;
}

.article-card__link {
  font-size: 14px;
  font-weight: 600;
  color: var(--orange);
  transition: color var(--transition);
}

.article-card:hover .article-card__link {
  color: var(--orange-hover);
}

/* ------------------------------------------------------------------
   17. FAQ — LIGHT BACKGROUND
   ------------------------------------------------------------------ */
.faq {
  padding: 120px 0;
  background: var(--bg-2);
}

.faq__list {
  max-width: 840px;
  margin: 0 auto;
}

.faq__item {
  border: 1px solid var(--border);
  border-radius: var(--radius);
  margin-bottom: 14px;
  overflow: hidden;
  transition: border-color var(--transition), box-shadow var(--transition);
  background: var(--bg-card);
}

.faq__item.active {
  border-color: var(--border-hover);
  box-shadow: 0 4px 20px rgba(252, 146, 44, 0.08);
}

.faq__question {
  width: 100%;
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 24px 28px;
  background: none;
  border: none;
  font-family: inherit;
  font-size: 16px;
  font-weight: 700;
  color: var(--text);
  cursor: pointer;
  text-align: left;
  gap: 16px;
}

.faq__question span {
  flex: 1;
}

.faq__chevron {
  transition: transform 0.3s ease;
  flex-shrink: 0;
  color: var(--text-3);
}

.faq__item.active .faq__chevron {
  transform: rotate(180deg);
  color: var(--orange);
}

.faq__answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.4s ease,
              padding 0.4s ease;
  padding: 0 28px;
}

.faq__item.active .faq__answer {
  max-height: 300px;
  padding: 0 28px 24px;
}

.faq__answer p {
  font-size: 15px;
  color: var(--text-3);
  line-height: 1.8;
}

/* ------------------------------------------------------------------
   18. Contact — LIGHT WITH ORANGE GLOW
   ------------------------------------------------------------------ */
.contact {
  padding: 120px 0;
  background: var(--bg);
  position: relative;
  overflow: hidden;
}

.contact::before {
  content: '';
  position: absolute;
  top: -300px;
  left: 50%;
  transform: translateX(-50%);
  width: 800px;
  height: 800px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(252, 146, 44, 0.08) 0%, transparent 60%);
  pointer-events: none;
}

.contact__inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  position: relative;
}

.contact__details {
  display: flex;
  flex-direction: column;
  gap: 16px;
  margin-top: 32px;
}

.contact__detail {
  display: flex;
  align-items: center;
  gap: 14px;
  font-size: 15px;
  color: var(--text-2);
  padding: 16px 24px;
  background: var(--bg-card);
  border-radius: 10px;
  border: 1px solid var(--border);
  transition: border-color var(--transition), box-shadow var(--transition);
}

.contact__detail:hover {
  border-color: var(--border-hover);
  box-shadow: 0 4px 16px rgba(252, 146, 44, 0.08);
}

.contact__form {
  background: var(--bg-card);
  padding: 44px;
  border-radius: var(--radius-lg);
  border: 1px solid var(--border);
  box-shadow: var(--shadow-lg);
}

.form-group {
  margin-bottom: 22px;
}

.form-label {
  display: block;
  font-size: 13px;
  font-weight: 700;
  color: var(--text-3);
  margin-bottom: 8px;
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

.form-input {
  width: 100%;
  padding: 16px 20px;
  background: var(--bg-2);
  border: 1.5px solid var(--border);
  border-radius: 10px;
  color: var(--text);
  font-family: inherit;
  font-size: 15px;
  transition: all var(--transition);
  outline: none;
}

.form-input::placeholder {
  color: var(--text-3);
}

.form-input:focus {
  border-color: var(--orange);
  box-shadow: 0 0 0 4px var(--orange-glow);
}

.form-input--textarea {
  resize: vertical;
  min-height: 110px;
}

.contact__privacy {
  text-align: center;
  font-size: 12px;
  color: var(--text-3);
  margin-top: 12px;
}

/* ------------------------------------------------------------------
   19. Button — SOLID, FLAT, CLEAN
   ------------------------------------------------------------------ */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-family: inherit;
  font-weight: 700;
  font-size: 15px;
  padding: 16px 36px;
  border-radius: 10px;
  border: none;
  cursor: pointer;
  transition: all var(--transition);
  letter-spacing: 0.02em;
  gap: 8px;
}

.btn--primary {
  background: var(--orange);
  color: #fff;
  box-shadow: 0 4px 16px rgba(252, 146, 44, 0.25);
}

.btn--primary:hover {
  background: var(--orange-hover);
  transform: translateY(-3px);
  box-shadow: 0 12px 32px rgba(252, 146, 44, 0.35);
}

.btn--small {
  padding: 12px 24px;
  font-size: 14px;
}

.btn--full {
  width: 100%;
}

/* ------------------------------------------------------------------
   20. Footer — DARK (kept)
   ------------------------------------------------------------------ */
.footer {
  background: var(--darker);
  color: #fff;
  padding: 80px 0 0;
  border-top: 1px solid rgba(255, 255, 255, 0.05);
}

.footer__inner {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr 1fr;
  gap: 48px;
}

.footer__logo {
  height: 36px;
  margin-bottom: 20px;
}

.footer__about {
  font-size: 14px;
  color: rgba(255, 255, 255, 0.45);
  line-height: 1.8;
}

.footer__heading {
  font-size: 13px;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.15em;
  margin-bottom: 24px;
  color: rgba(255, 255, 255, 0.9);
}

.footer__link {
  display: block;
  font-size: 14px;
  color: rgba(255, 255, 255, 0.45);
  margin-bottom: 12px;
  transition: color var(--transition), padding-left var(--transition);
}

.footer__link:hover {
  color: var(--orange);
  padding-left: 4px;
}

.footer__bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.06);
  padding: 28px 0;
  margin-top: 60px;
}

.footer__copy {
  font-size: 13px;
  color: rgba(255, 255, 255, 0.25);
}

/* ------------------------------------------------------------------
   21. WhatsApp Float
   ------------------------------------------------------------------ */
.whatsapp-float {
  position: fixed;
  bottom: 24px;
  right: 24px;
  z-index: 999;
  width: 64px;
  height: 64px;
  border-radius: 50%;
  background: #25D366;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 4px 16px rgba(37, 211, 102, 0.4);
  transition: transform var(--transition);
  animation: waPulse 2s infinite;
  color: #fff;
  border: none;
  cursor: pointer;
}

.whatsapp-float:hover {
  transform: scale(1.1);
}

@keyframes waPulse {
  0% {
    box-shadow: 0 4px 16px rgba(37, 211, 102, 0.4);
  }
  50% {
    box-shadow: 0 4px 24px rgba(37, 211, 102, 0.6), 0 0 0 12px rgba(37, 211, 102, 0.1);
  }
  100% {
    box-shadow: 0 4px 16px rgba(37, 211, 102, 0.4);
  }
}

/* ====================================================================
   22. Responsive — 1024px
   ==================================================================== */
@media (max-width: 1024px) {
  .catalog__grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .products__grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .why-us__grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .steps {
    grid-template-columns: repeat(3, 1fr);
  }

  .step:not(:last-child)::after {
    display: none;
  }

  .articles__grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .hero__inner {
    grid-template-columns: 1fr;
  }

  .about__inner {
    grid-template-columns: 1fr;
  }

  .contact__inner {
    grid-template-columns: 1fr;
  }

  .footer__inner {
    grid-template-columns: repeat(2, 1fr);
  }
}

/* ====================================================================
   23. Responsive — 768px
   ==================================================================== */
@media (max-width: 768px) {
  /* Mobile Nav */
  .header__nav {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    width: 100%;
    height: 100vh;
    background: var(--dark);
    flex-direction: column;
    align-items: flex-start;
    padding: 80px 32px 32px;
    gap: 8px;
    transition: transform 0.35s cubic-bezier(0.4, 0, 0.2, 1), opacity 0.3s ease;
    z-index: 999;
    transform: translateY(-100%);
    opacity: 0;
    pointer-events: none;
  }

  .header__nav.open {
    transform: translateY(0);
    opacity: 1;
    pointer-events: auto;
  }

  .header__burger {
    display: flex;
  }

  .header__link {
    font-size: 17px;
    padding: 14px 0;
    width: 100%;
    color: rgba(255, 255, 255, 0.85);
    border-bottom: 1px solid rgba(255, 255, 255, 0.08);
  }

  .header__link:hover {
    color: #fff;
  }

  .header__link--cta {
    margin-top: 12px;
    text-align: center;
    border-bottom: none;
  }

  .header.scrolled .header__link {
    color: rgba(255, 255, 255, 0.8);
  }

  .header.scrolled .header__link:hover {
    color: #fff;
  }

  .header__link--cta {
    width: auto;
    margin-top: 8px;
    color: #fff;
  }
}

/* ====================================================================
   22.5. Responsive — 1024px
   ==================================================================== */
@media (max-width: 1024px) {
  .testimonials__grid {
    grid-template-columns: repeat(2, 1fr);
  }


  /* Grids */
  .catalog__grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .catalog__card {
    aspect-ratio: 3 / 4;
  }

  .products__grid {
    grid-template-columns: 1fr;
  }

  .why-us__grid {
    grid-template-columns: 1fr;
  }

  .steps {
    grid-template-columns: repeat(2, 1fr);
  }

  .articles__grid {
    grid-template-columns: 1fr;
  }

  .stats__grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 32px 24px;
  }

  .stats__number {
    font-size: 2.8rem;
  }

  .footer__inner {
    grid-template-columns: 1fr;
    gap: 32px;
  }

  /* Testimonials */
  .testimonials__grid {
    grid-template-columns: 1fr;
  }

  .testimonial-card {
    padding: 24px;
  }

  /* Hero adjustments */
  .hero-slide__features {
    flex-wrap: wrap;
    gap: 12px;
  }

  .hero-slider__arrow {
    width: 44px;
    height: 44px;
  }

  .hero-slider__arrow--prev {
    left: 12px;
  }

  .hero-slider__arrow--next {
    right: 12px;
  }

  /* Topbar */
  .topbar {
    font-size: 12px;
  }

  .topbar__left,
  .topbar__right {
    gap: 10px;
  }

  /* Sections reduce padding */
  .catalog,
  .products,
  .portfolio,
  .testimonials,
  .why-us,
  .how-we-work,
  .articles,
  .faq,
  .contact {
    padding: 72px 0;
  }

  .section-header {
    margin-bottom: 44px;
  }

  /* Contact form */
  .contact__form {
    padding: 28px;
  }

  .products__tabs {
    position: static;
    backdrop-filter: none;
    background: transparent;
    padding: 0;
    margin-bottom: 32px;
  }

  /* Portfolio Mobile */
  .portfolio__grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 16px;
  }

  .portfolio-popup {
    padding: 12px;
  }
  
  .portfolio-popup__layout {
    flex-direction: column;
  }
  
  .portfolio-popup__gallery {
    flex: none;
    height: 35vh;
    min-height: 250px;
  }
  
  .portfolio-popup__info {
    padding: 24px;
    height: 55vh;
  }

  .portfolio-popup__title {
    font-size: 1.5rem;
    margin-bottom: 16px;
  }
  
  .portfolio-popup__close {
    top: 8px;
    right: 8px;
    background: rgba(255,255,255,0.2);
    color: #fff;
    backdrop-filter: blur(4px);
  }
}

/* ====================================================================
   24. Responsive — 480px
   ==================================================================== */
@media (max-width: 480px) {
  .catalog__grid,
  .portfolio__grid {
    grid-template-columns: 1fr;
  }

  .catalog__card {
    aspect-ratio: 3 / 4;
  }

  .steps {
    grid-template-columns: 1fr;
  }

  .stats__grid {
    grid-template-columns: 1fr;
  }

  .hero-slide__title {
    font-size: 2.2rem;
  }

  .hero-slide__content {
    padding: 0 8px;
  }

  .hero-slide__features {
    flex-direction: column;
    gap: 8px;
  }

  /* Hide location text on very small screens */
  .topbar__left .topbar__item--location span {
    display: none;
  }

  .topbar__inner {
    flex-wrap: wrap;
    gap: 8px;
    justify-content: center;
  }

  .topbar__left {
    display: none;
  }

  .hero-slider__dots {
    bottom: 20px;
  }

  .container {
    padding: 0 16px;
  }

  .product-card__body {
    padding: 20px;
  }

  .why-us__card {
    padding: 28px;
  }

  .faq__question {
    padding: 18px 20px;
    font-size: 14px;
  }

  .faq__answer {
    padding: 0 20px;
  }

  .faq__item.active .faq__answer {
    padding: 0 20px 16px;
  }

  .section-header__title {
    font-size: clamp(1.6rem, 7vw, 2.4rem);
  }

  .btn {
    padding: 14px 28px;
    font-size: 14px;
  }
}