/* ===== Custom Properties ===== */
:root {
  --primary: #992a2d;
  --primary-dark: #7a2123;
  --accent: #d74516;
  --dark: #19212e;
  --dark-light: #243040;
  --gray-bg: #f2f2f2;
  --text: #2b2b2b;
  --text-light: #666;
  --white: #ffffff;
  --radius: 8px;
  --shadow: 0 2px 20px rgba(0, 0, 0, 0.08);
  --transition: 0.3s ease;
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: 'Segoe UI', system-ui, -apple-system, sans-serif;
  color: var(--text);
  line-height: 1.7;
  background: var(--white);
}

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

a {
  color: var(--primary);
  text-decoration: none;
  transition: color var(--transition);
}

a:hover {
  color: var(--accent);
}

.container {
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 24px;
}

/* ===== Header ===== */
.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  background: var(--white);
  box-shadow: 0 1px 10px rgba(0, 0, 0, 0.08);
  transition: box-shadow var(--transition);
}

.header .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
}

.header__logo img {
  height: 44px;
  width: auto;
}

.header__nav {
  display: flex;
  align-items: center;
  gap: 32px;
}

.header__nav a {
  font-size: 0.95rem;
  font-weight: 500;
  color: var(--text);
  position: relative;
  padding: 5px;
}

.header__nav a::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--primary);
  transition: width var(--transition);
}

.header__nav a:hover {
  color: var(--primary);
}

.header__nav a:hover::after {
  width: 100%;
}

.header__cta {
  background: var(--primary);
  color: var(--white) !important;
  padding: 10px 24px;
  border-radius: var(--radius);
  font-weight: 600;
  font-size: 0.9rem;
  letter-spacing: 0.02em;
}

.header__cta::after {
  display: none !important;
}

.header__cta:hover {
  background: var(--primary-dark);
  color: var(--white) !important;
}

/* Mobile menu toggle */
.menu-toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: 8px;
}

.menu-toggle span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--text);
  margin: 6px 0;
  transition: var(--transition);
  border-radius: 2px;
}

/* ===== Hero ===== */
.hero {
  margin-top: 72px;
  line-height: 0;
}

.hero__slider {
  position: relative;
  aspect-ratio: 21 / 9;
  overflow: hidden;
  background: var(--dark);
}

.hero__track {
  position: relative;
  width: 100%;
  height: 100%;
}

.hero__slide {
  position: absolute;
  inset: 0;
  opacity: 0;
  transition: opacity 1.2s ease;
}

.hero__slide.active {
  opacity: 1;
}

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

/* Arrows */
.hero__arrow {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  z-index: 10;
  background: rgba(255, 255, 255, 0.15);
  backdrop-filter: blur(4px);
  border: none;
  color: var(--white);
  font-size: 2.4rem;
  width: 48px;
  height: 48px;
  border-radius: 50%;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: background var(--transition);
  line-height: 1;
}

.hero__arrow:hover {
  background: rgba(255, 255, 255, 0.3);
}

.hero__arrow--prev { left: 16px; }
.hero__arrow--next { right: 16px; }

/* Dots */
.hero__dots {
  position: absolute;
  bottom: 16px;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  gap: 8px;
  z-index: 10;
}

.hero__dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  border: 2px solid rgba(255, 255, 255, 0.8);
  background: transparent;
  cursor: pointer;
  transition: background var(--transition), transform var(--transition);
  padding: 0;
}

.hero__dot.active {
  background: var(--white);
  transform: scale(1.15);
}

/* Banner below slider */
.hero__banner {
  background: var(--dark);
  padding: 32px 0;
  line-height: 1.7;
}

.hero__banner-content {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 32px;
}

.hero__banner-text h1 {
  font-size: clamp(1.4rem, 3vw, 2rem);
  color: var(--white);
  font-weight: 700;
  line-height: 1.3;
  margin-bottom: 6px;
}

.hero__banner-text p {
  font-size: 1.05rem;
  color: rgba(255, 255, 255, 0.7);
}

.hero__btn {
  flex-shrink: 0;
  display: inline-block;
  background: var(--primary);
  color: var(--white);
  padding: 14px 36px;
  border-radius: var(--radius);
  font-size: 1rem;
  font-weight: 600;
  transition: background var(--transition), transform var(--transition);
  white-space: nowrap;
}

.hero__btn:hover {
  background: var(--primary-dark);
  color: var(--white);
  transform: translateY(-2px);
}

/* ===== Sections shared ===== */
section {
  padding: 80px 0;
}

.section-title {
  font-size: clamp(1.6rem, 3vw, 2.2rem);
  font-weight: 700;
  color: var(--dark);
  margin-bottom: 12px;
}

.section-subtitle {
  font-size: 1.05rem;
  color: var(--text-light);
  margin-bottom: 48px;
  max-width: 600px;
}

.section-subtitle.center {
  margin-left: auto;
  margin-right: auto;
}

.text-center {
  text-align: center;
}

/* ===== About / Services ===== */
.about {
  background: var(--white);
  padding-top: 48px;
}

.about__grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 56px;
  align-items: start;
}

.about__text p {
  margin-bottom: 20px;
  color: var(--text);
}

.about__text strong {
  color: var(--primary);
}

.services-list {
  list-style: none;
  display: grid;
  gap: 16px;
}

.services-list li {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  padding: 16px 20px;
  background: var(--gray-bg);
  border-radius: var(--radius);
  transition: transform var(--transition), box-shadow var(--transition);
}

.services-list li:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow);
}

.services-list .icon {
  flex-shrink: 0;
  width: 40px;
  height: 40px;
  background: var(--primary);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--white);
  font-size: 1.1rem;
}

.services-list .text h3 {
  font-size: 1rem;
  font-weight: 600;
  margin-bottom: 2px;
}

.services-list .text p {
  font-size: 0.9rem;
  color: var(--text-light);
  margin: 0;
}

/* ===== Warranty banner ===== */
.warranty {
  background: var(--dark);
  color: var(--white);
  text-align: center;
  padding: 56px 0;
}

.warranty h2 {
  font-size: clamp(1.4rem, 3vw, 2rem);
  margin-bottom: 16px;
}

.warranty p {
  font-size: 1.05rem;
  color: rgba(255, 255, 255, 0.8);
  max-width: 600px;
  margin: 0 auto;
}

.warranty__badges {
  display: flex;
  justify-content: center;
  gap: 40px;
  margin-top: 32px;
  flex-wrap: wrap;
}

.warranty__badge {
  text-align: center;
}

.warranty__badge .number {
  font-size: 2.4rem;
  font-weight: 800;
  color: var(--accent);
}

.warranty__badge .label {
  font-size: 0.85rem;
  color: rgba(255, 255, 255, 0.7);
  margin-top: 4px;
}

/* ===== Reviews ===== */
.reviews {
  background: var(--gray-bg);
}

.reviews__grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 24px;
}

.review-card {
  background: var(--white);
  border-radius: var(--radius);
  padding: 32px;
  box-shadow: var(--shadow);
  transition: transform var(--transition);
}

.review-card:hover {
  transform: translateY(-4px);
}

a.review-card {
  display: block;
  color: inherit;
  text-decoration: none;
}

a.review-card:hover {
  color: inherit;
}

.review-card__source {
  font-size: 0.85rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--primary);
  margin-bottom: 8px;
}

.review-card__stars {
  color: #f5a623;
  font-size: 1.2rem;
  margin-bottom: 8px;
  letter-spacing: 2px;
}

.review-card__rating {
  font-size: 1.8rem;
  font-weight: 800;
  color: var(--dark);
  margin-bottom: 4px;
}

.review-card__count {
  font-size: 0.9rem;
  color: var(--text-light);
}

/* ===== Contact ===== */
.contact {
  background: var(--white);
}

.contact__grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 56px;
}

.contact__info h3 {
  font-size: 1.1rem;
  font-weight: 600;
  margin-bottom: 24px;
  color: var(--dark);
}

.contact__item {
  display: flex;
  align-items: flex-start;
  gap: 16px;
  margin-bottom: 24px;
}

.contact__icon {
  flex-shrink: 0;
  width: 44px;
  height: 44px;
  background: var(--gray-bg);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.1rem;
  color: var(--primary);
}

.contact__item .label {
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--text-light);
  margin-bottom: 2px;
}

.contact__item .value {
  font-size: 1rem;
  font-weight: 500;
  color: var(--dark);
}

.contact__item .value a {
  color: var(--dark);
}

.contact__item .value a:hover {
  color: var(--primary);
}

.contact__map {
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow);
  min-height: 320px;
}

.contact__map iframe {
  width: 100%;
  height: 100%;
  min-height: 320px;
  border: 0;
}

/* ===== Footer ===== */
.footer {
  background: var(--dark);
  color: rgba(255, 255, 255, 0.7);
  padding: 40px 0;
  text-align: center;
  font-size: 0.9rem;
}

.footer__social {
  display: flex;
  justify-content: center;
  gap: 16px;
  margin-bottom: 16px;
}

.footer__social a {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: var(--dark-light);
  display: flex;
  align-items: center;
  justify-content: center;
  color: rgba(255, 255, 255, 0.7);
  font-size: 1.1rem;
  transition: background var(--transition), color var(--transition);
}

.footer__social a:hover {
  background: var(--primary);
  color: var(--white);
}

/* ===== Responsive ===== */
@media (max-width: 768px) {
  .menu-toggle {
    display: block;
  }

  .header__nav {
    position: fixed;
    top: 72px;
    right: -100%;
    width: 280px;
    height: calc(100vh - 72px);
    background: var(--white);
    flex-direction: column;
    padding: 32px 24px;
    gap: 20px;
    box-shadow: -4px 0 20px rgba(0, 0, 0, 0.1);
    transition: right var(--transition);
    align-items: flex-start;
  }

  .header__nav.open {
    right: 0;
  }

  .hero__slider {
    aspect-ratio: 16 / 9;
  }

  .hero__banner-content {
    flex-direction: column;
    text-align: center;
  }

  .hero__arrow {
    width: 36px;
    height: 36px;
    font-size: 1.8rem;
  }

  .about__grid,
  .contact__grid {
    grid-template-columns: 1fr;
    gap: 32px;
  }

  section {
    padding: 56px 0;
  }

  .warranty__badges {
    gap: 24px;
  }
}

@media (max-width: 480px) {
  .hero__slider {
    aspect-ratio: 4 / 3;
  }

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