/* =========================
   STYLE GLOBAL
========================= */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
  font-family: 'Segoe UI', Tahoma, Arial, sans-serif;
}

body {
  background-color: #f4f6f8;
  color: #2c2c2c;
  line-height: 1.6;
}

/* =========================
   HEADER & NAVIGATION
========================= */
header {
  background: #0a1f33;
  padding: 15px 8%;
  position: sticky;
  top: 0;
  z-index: 1000;
}

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

nav .logo {
  color: #ffffff;
  font-size: 22px;
  font-weight: bold;
  letter-spacing: 1px;
}

nav ul {
  list-style: none;
  display: flex;
  gap: 25px;
}

nav ul li a {
  color: #ffffff;
  text-decoration: none;
  font-weight: 500;
  transition: 0.3s;
}

nav ul li a:hover,
nav ul li a.active {
  color: #00b4d8;
}

/* Hamburger menu */
.menu-toggle {
  display: none;
  flex-direction: column;
  cursor: pointer;
  gap: 5px;
}

.menu-toggle span {
  width: 25px;
  height: 3px;
  background: #fff;
  display: block;
  border-radius: 3px;
  transition: 0.3s;
}

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

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

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

nav ul.active {
  display: flex;
  flex-direction: column;
  position: absolute;
  top: 60px;
  right: 0;
  background: #0a1f33;
  width: 200px;
  padding: 10px 0;
}

/* =========================
   HERO (index) 
========================= */
.hero {
  background: linear-gradient(rgba(10,31,51,0.6), rgba(10,31,51,0.6)),
              url("assets/hero-industrie.jpg") center/cover;
  height: 85vh;
  display: flex;
  align-items: center;
  padding: 0 8%;
  color: #ffffff;
}

.hero-content {
  max-width: 600px;
}

.hero h1 {
  font-size: 42px;
  margin-bottom: 15px;
}

.hero p {
  font-size: 18px;
  margin-bottom: 25px;
}

.btn {
  display: inline-block;
  padding: 12px 30px;
  background: #00b4d8;
  color: #ffffff;
  text-decoration: none;
  border-radius: 5px;
  font-weight: 600;
  transition: 0.3s;
}

.btn:hover {
  background: #0096c7;
}

/* =========================
   SERVICES
========================= */
.services {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 25px;
}

.service-card {
  background: #ffffff;
  padding: 25px;
  border-radius: 8px;
  box-shadow: 0 5px 15px rgba(0,0,0,0.08);
  transition: 0.3s;
}

.service-card:hover {
  transform: translateY(-5px);
}

.service-card img {
  width: 60px;
  margin-bottom: 15px;
}

.service-card h3 {
  color: #0a1f33;
  margin-bottom: 10px;
}

.service-card p {
  font-size: 15px;
  color: #555;
}

/* =========================
   ABOUT
========================= */
.about {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 40px;
  align-items: center;
  padding: 60px 8%;
}

.about img {
  width: 100%;
  border-radius: 8px;
}

.about h3 {
  color: #0a1f33;
  margin-bottom: 15px;
}

/* =========================
   FORMULAIRES
========================= */
form {
  background: #ffffff;
  padding: 30px;
  border-radius: 8px;
  max-width: 600px;
  margin: auto;
  box-shadow: 0 5px 15px rgba(0,0,0,0.1);
}

form input,
form select,
form textarea {
  width: 100%;
  padding: 12px;
  margin-bottom: 15px;
  border: 1px solid #ccc;
  border-radius: 5px;
  font-size: 15px;
  background-color: #d6d8d9;
  color: #2c2c2c;
}

form textarea {
  resize: vertical;
  min-height: 120px;
}

form button {
  width: 100%;
  background: #0a1f33;
  color: #ffffff;
  border: none;
  padding: 12px;
  font-size: 16px;
  border-radius: 5px;
  cursor: pointer;
  transition: 0.3s;
}

form button:hover {
  background: #00b4d8;
}

/* =========================
   FOOTER
========================= */
footer {
  background: #0a1f33;
  color: #ffffff;
  text-align: center;
  padding: 20px 8%;
}

footer p {
  font-size: 14px;
}

/* =========================
   SLIDER (services) 
========================= */
.slider {
  position: relative;
  overflow: hidden;
  height: 60vh;
  margin-bottom: 60px;
}

.slides {
  display: flex;
  transition: transform 0.5s ease-in-out;
  height: 100%;
}

.slide {
  min-width: 100%;
  position: relative;
}

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

.slide-text {
  position: absolute;
  bottom: 20%;
  left: 10%;
  color: #fff;
  z-index: 2;
}

.prev,
.next {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  background: rgba(10,31,51,0.7);
  color: #fff;
  border: none;
  font-size: 24px;
  padding: 10px 15px;
  cursor: pointer;
  border-radius: 5px;
  z-index: 2;
}

/* =========================
   RESPONSIVE
========================= */
@media (max-width: 768px) {
  .menu-toggle { display: flex; }
  nav ul { display: none; }

  .hero, .slider { height: auto; padding: 60px 8%; }
  .slide-text h2 { font-size: 28px; }
  .slide-text p { font-size: 16px; }
  .services { grid-template-columns: 1fr; }
  .about { grid-template-columns: 1fr; }
}