:root {
  --dark: #2b343b;
  --dark-2: #20282e;
  --orange: #e25303;
  --orange-light: #ff6a13;
  --white: #ffffff;
  --muted: #cfd6dc;
  --card: #333e46;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: Arial, Helvetica, sans-serif;
  background: var(--dark);
  color: var(--white);
}

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

.header {
  position: sticky;
  top: 0;
  z-index: 1000;
  background: rgba(43, 52, 59, 0.95);
  backdrop-filter: blur(12px);
  border-bottom: 2px solid var(--orange);
  padding: 1rem 5%;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.logo {
  color: var(--white);
  text-decoration: none;
  display: flex;
  align-items: center;
  gap: 0.8rem;
  font-weight: 700;
}

.logo img {
  height: 42px;
  width: auto;
}

.nav {
  display: flex;
  gap: 1.5rem;
}

.nav a {
  color: var(--white);
  text-decoration: none;
  font-size: 0.9rem;
  font-weight: 700;
  transition: 0.3s;
}

.nav a:hover {
  color: var(--orange-light);
}

.burger {
  display: none;
  background: var(--orange);
  color: var(--white);
  border: none;
  font-size: 1.5rem;
  padding: 0.4rem 0.8rem;
  border-radius: 8px;
}

.banner {
  background: var(--white);
}

.banner img {
  width: 100%;
  max-height: 190px;
  object-fit: cover;
}

.section {
  padding: 5rem 8%;
  border-top: 10px solid var(--orange);
}

.section-dark {
  background: var(--dark-2);
}

.hero {
  display: grid;
  grid-template-columns: 1fr 1fr;
  align-items: center;
  gap: 4rem;
  border-top: none;
  min-height: 620px;
  background:
    radial-gradient(circle at top right, rgba(226, 83, 3, 0.25), transparent 35%), var(--dark);
}

.hero-content h1 {
  font-size: clamp(2.5rem, 5vw, 5rem);
  line-height: 1;
  margin: 1rem 0;
  color: var(--white);
}

.hero-content p {
  color: var(--muted);
  font-size: 1.15rem;
  line-height: 1.7;
  max-width: 650px;
}

.tag {
  display: inline-block;
  color: var(--orange-light);
  background: rgba(226, 83, 3, 0.15);
  border: 1px solid rgba(226, 83, 3, 0.5);
  padding: 0.6rem 1rem;
  border-radius: 999px;
  font-weight: 700;
}

.hero-actions {
  display: flex;
  gap: 1rem;
  margin-top: 2rem;
  flex-wrap: wrap;
}

.btn-primary,
.btn-secondary {
  padding: 0.9rem 1.3rem;
  border-radius: 10px;
  text-decoration: none;
  font-weight: 700;
}

.btn-primary {
  background: var(--orange);
  color: var(--white);
}

.btn-secondary {
  color: var(--white);
  border: 1px solid var(--orange);
}

.hero-image {
  background: var(--white);
  border-radius: 24px;
  padding: 1.5rem;
  box-shadow: 0 25px 60px rgba(0, 0, 0, 0.35);
}

.section-title {
  text-align: center;
  margin-bottom: 3rem;
}

.section-title span {
  color: var(--orange-light);
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 2px;
  font-size: 0.8rem;
}

.section-title h2 {
  color: var(--white);
  font-size: clamp(1.8rem, 3vw, 3rem);
  margin: 0.5rem 0 0;
}

.cards-grid,
.stats-grid,
.flux-grid {
  display: grid;
  gap: 1.5rem;
}

.cards-grid {
  grid-template-columns: repeat(4, 1fr);
}

.card,
.stat,
.flux-card {
  background: var(--card);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 18px;
  padding: 1.5rem;
  transition: 0.3s;
}

.card:hover,
.stat:hover,
.flux-card:hover {
  transform: translateY(-6px);
  border-color: var(--orange);
}

.card h3,
.flux-card h3,
.gamme h3 {
  color: var(--orange-light);
  margin-top: 0;
}

.card p,
.flux-card p {
  color: var(--muted);
  line-height: 1.6;
}

.gamme {
  margin-top: 3rem;
  text-align: center;
}

.gamme img {
  margin: 1.5rem auto 0;
  border-radius: 14px;
  background: var(--white);
  padding: 0.5rem;
}

.pills {
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: 1rem;
}

.pills span {
  background: var(--card);
  border: 1px solid rgba(226, 83, 3, 0.6);
  padding: 1rem 1.3rem;
  border-radius: 999px;
  font-weight: 700;
}

.stats-grid {
  grid-template-columns: repeat(4, 1fr);
}

.stat {
  text-align: center;
}

.stat strong {
  display: block;
  font-size: 1.8rem;
  color: var(--orange-light);
  margin-bottom: 0.6rem;
}

.stat span {
  color: var(--muted);
}

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

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

.flux-card img {
  margin: 1.5rem auto 0;
  max-width: 320px;
  border-radius: 12px;
  background: var(--white);
  padding: 0.5rem;
}

.benefits-list {
  max-width: 800px;
  margin: auto;
  display: grid;
  gap: 1rem;
}

.benefits-list p {
  background: var(--card);
  border-left: 5px solid var(--orange);
  padding: 1.2rem;
  border-radius: 10px;
  margin: 0;
  font-weight: 700;
}

.button_scroll_to_top {
  display: none;
  position: fixed;
  right: 25px;
  bottom: 25px;
  z-index: 999;
  background: var(--orange);
  color: var(--white);
  border: none;
  width: 52px;
  height: 52px;
  border-radius: 14px;
  cursor: pointer;
  font-size: 1.5rem;
  box-shadow: 0 12px 30px rgba(0, 0, 0, 0.35);
}

footer {
  text-align: center;
  padding: 2rem;
  background: var(--dark-2);
  border-top: 10px solid var(--orange);
}

.footer-link {
  color: var(--white);
  margin: 0.4rem 0;
  font-size: 0.85rem;
  font-weight: normal;
}

footer p {
  margin: 0.4rem 0;
  font-size: 0.85rem;
}

footer a {
  color: var(--orange-light);
  text-decoration: none;
  font-weight: 700;
}

@media screen and (max-width: 950px) {
  .burger {
    display: block;
  }

  .nav {
    position: absolute;
    top: 75px;
    right: 5%;
    left: 5%;
    display: none;
    flex-direction: column;
    background: var(--dark-2);
    border: 1px solid var(--orange);
    border-radius: 14px;
    padding: 1rem;
  }

  .nav.active {
    display: flex;
  }

  .hero {
    grid-template-columns: 1fr;
    text-align: center;
    min-height: auto;
  }

  .hero-actions {
    justify-content: center;
  }

  .cards-grid,
  .stats-grid,
  .flux-grid {
    grid-template-columns: 1fr;
  }

  .section {
    padding: 4rem 5%;
  }
}