/* ===============================
   SMB Style — Fichier CSS principal
   Modifie ici les couleurs, tailles,
   espacements et effets visuels.
================================= */

/* Variables globales : change les couleurs du site ici */
:root {
  --bg-dark: #070707;
  --bg-card: #121212;
  --text-light: #f5f5f5;
  --text-muted: #b9b9b9;
  --accent: #ff3131;
  --accent-2: #ffffff;
  --border: rgba(255, 255, 255, 0.12);
  --shadow: 0 20px 60px rgba(0, 0, 0, 0.45);
}

/* Reset simple pour éviter les marges par défaut */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: Arial, Helvetica, sans-serif;
  background: var(--bg-dark);
  color: var(--text-light);
  line-height: 1.6;
}

/* Images responsives */
img {
  width: 100%;
  display: block;
}

/* Liens sans soulignement */
a {
  color: inherit;
  text-decoration: none;
}

/* ===============================
   Header / Navigation
================================= */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 1000;
  background: rgba(7, 7, 7, 0.86);
  backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--border);
}

.navbar {
  max-width: 1200px;
  margin: auto;
  padding: 18px 24px;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.logo {
  font-size: 1.5rem;
  font-weight: 900;
  letter-spacing: 1px;
  text-transform: uppercase;
}

.logo span {
  color: var(--accent);
}

.nav-links {
  list-style: none;
  display: flex;
  gap: 28px;
}

.nav-links a {
  font-weight: 700;
  color: var(--text-muted);
  transition: color 0.3s ease;
}

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

.menu-toggle {
  display: none;
  background: none;
  border: none;
  color: var(--text-light);
  font-size: 2rem;
  cursor: pointer;
}

/* ===============================
   Section Hero
================================= */
.hero {
  min-height: 100vh;
  padding: 120px 24px 80px;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  position: relative;
  overflow: hidden;

  /* Fond urbain sans image : dégradés + ambiance néon */
  background:
    radial-gradient(circle at 20% 30%, rgba(255, 49, 49, 0.25), transparent 28%),
    radial-gradient(circle at 80% 70%, rgba(255, 255, 255, 0.12), transparent 26%),
    linear-gradient(135deg, #050505, #151515 45%, #000000);
}

/* Effet grille urbaine */
.hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(255,255,255,0.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,0.04) 1px, transparent 1px);
  background-size: 42px 42px;
  opacity: 0.35;
}

.hero-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(to bottom, rgba(0,0,0,0.1), rgba(0,0,0,0.75));
}

.hero-content {
  max-width: 850px;
  position: relative;
  z-index: 1;
}

.tagline {
  color: var(--accent);
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 3px;
  margin-bottom: 12px;
}

.hero h1 {
  font-size: clamp(3.5rem, 10vw, 8rem);
  line-height: 0.9;
  text-transform: uppercase;
  letter-spacing: -4px;
}

.hero h2 {
  margin-top: 18px;
  font-size: clamp(1.4rem, 4vw, 3rem);
  color: var(--accent);
}

.hero-text {
  max-width: 680px;
  margin: 24px auto 0;
  color: var(--text-muted);
  font-size: 1.1rem;
}

.hero-buttons {
  margin-top: 34px;
  display: flex;
  gap: 16px;
  justify-content: center;
  flex-wrap: wrap;
}

.btn {
  padding: 14px 24px;
  border-radius: 999px;
  font-weight: 900;
  text-transform: uppercase;
  letter-spacing: 1px;
  transition: transform 0.3s ease, background 0.3s ease;
}

.btn:hover {
  transform: translateY(-3px);
}

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

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

/* ===============================
   Sections générales
================================= */
.section {
  max-width: 1200px;
  margin: auto;
  padding: 90px 24px;
}

.section-title {
  text-align: center;
  margin-bottom: 48px;
}

.section-title p {
  color: var(--accent);
  text-transform: uppercase;
  font-weight: 900;
  letter-spacing: 2px;
}

.section-title h2 {
  font-size: clamp(2rem, 5vw, 4rem);
  text-transform: uppercase;
}

/* ===============================
   Produits
================================= */
.product-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.product-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 24px;
  overflow: hidden;
  box-shadow: var(--shadow);
  transition: transform 0.3s ease, border-color 0.3s ease;
}

.product-card:hover {
  transform: translateY(-8px);
  border-color: rgba(255, 49, 49, 0.55);
}

.product-card img {
  height: 320px;
  object-fit: cover;
  background: #222;
}

.product-info {
  padding: 24px;
}

.product-info h3 {
  font-size: 1.4rem;
  margin-bottom: 8px;
}

.product-info p {
  color: var(--text-muted);
  margin-bottom: 16px;
}

.price {
  display: block;
  color: var(--accent);
  font-size: 1.3rem;
  font-weight: 900;
  margin-bottom: 18px;
}

.product-btn {
  display: inline-block;
  padding: 10px 18px;
  border-radius: 999px;
  background: white;
  color: black;
  font-weight: 900;
}

/* ===============================
   Section marque
================================= */
.brand-section {
  max-width: 100%;
  background: linear-gradient(135deg, #111, #050505);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}

.brand-content {
  max-width: 850px;
  margin: auto;
  text-align: center;
}

.brand-content h2 {
  font-size: clamp(2rem, 5vw, 4rem);
  text-transform: uppercase;
  margin-bottom: 24px;
}

.brand-content p {
  color: var(--text-muted);
  margin-bottom: 18px;
}

/* ===============================
   Avantages
================================= */
.features {
  max-width: 1200px;
  margin: auto;
  padding: 70px 24px;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}

.feature {
  padding: 28px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 20px;
}

.feature h3 {
  color: var(--accent);
  margin-bottom: 10px;
}

.feature p {
  color: var(--text-muted);
}

/* ===============================
   Formulaire
================================= */
.contact-section {
  max-width: 760px;
}

.contact-form {
  display: flex;
  flex-direction: column;
  gap: 14px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 24px;
  padding: 28px;
  box-shadow: var(--shadow);
}

.contact-form label {
  font-weight: 800;
}

.contact-form input,
.contact-form textarea {
  width: 100%;
  padding: 14px 16px;
  border-radius: 14px;
  border: 1px solid var(--border);
  background: #080808;
  color: white;
  font: inherit;
}

.contact-form input:focus,
.contact-form textarea:focus {
  outline: 2px solid var(--accent);
}

.form-message {
  color: var(--accent);
  font-weight: 800;
}

/* ===============================
   Footer
================================= */
.footer {
  padding: 34px 24px;
  text-align: center;
  border-top: 1px solid var(--border);
  color: var(--text-muted);
}

/* ===============================
   Responsive mobile/tablette
================================= */
@media (max-width: 850px) {
  .menu-toggle {
    display: block;
  }

  .nav-links {
    position: absolute;
    top: 72px;
    right: 24px;
    width: 230px;
    padding: 20px;
    border-radius: 18px;
    background: #111;
    border: 1px solid var(--border);
    flex-direction: column;
    display: none;
  }

  .nav-links.active {
    display: flex;
  }

  .product-grid,
  .features {
    grid-template-columns: 1fr;
  }

  .product-card img {
    height: 260px;
  }
}