/* ─────────────── RESET BASIQUE ─────────────── */
*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  font-size: 16px; /* base for rem */
  scroll-behavior: smooth;
}

body {
  font-family: 'Lato', sans-serif;
  background-color: #F5F5F5;    /* light gray */
  color: #1C1C1C;               /* near black text */
  line-height: 1.6;
}

/* ─────────────── PALETTE PRINCIPALE ─────────────── */
:root {
  --couleur-primaire: #001F3F;   /* navy blue */
  --couleur-secondaire: #DDDDDD; /* medium gray */
  --couleur-cta: #FF9500;        /* orange for CTAs */
  --couleur-texte: #1C1C1C;      /* text color */
  --couleur-fond: #FFFFFF;       /* white background for sections */
}

/* ─────────────── TYPOGRAPHIE ─────────────── */
h1, h2, h3, h4, h5, h6 {
  font-family: 'Lato', sans-serif;
  color: var(--couleur-primaire);
  margin-bottom: 1rem;
}

p {
  margin-bottom: 1rem;
  color: var(--couleur-texte);
  font-size: 1rem;
}

/* ─────────────── LIENS & CTA ─────────────── */
a {
  color: var(--couleur-primaire);
  text-decoration: none;
  transition: color 0.3s ease;
}
a:hover {
  color: var(--couleur-cta);
}

/* Button primary */
.btn-cta {
  background-color: var(--couleur-cta);
  color: #FFFFFF;
  padding: 0.75rem 1.5rem;
  border: none;
  border-radius: 0.375rem;
  font-size: 1rem;
  font-weight: 600;
  cursor: pointer;
  transition: background-color 0.3s ease, transform 0.3s ease;
}
.btn-cta:hover {
  background-color: #E68300;
  transform: translateY(-2px);
}

/* ─────────────── CONTENEUR & GRID ─────────────── */
.container {
  width: 90%;
  max-width: 1200px;
  margin: 0 auto;
}

.row {
  display: flex;
  flex-wrap: wrap;
  margin: 0 -0.75rem;
}
.col {
  padding: 0 0.75rem;
}

/* Columns responsive for 3 columns on desktop */
.col-3 {
  width: 100%;
}
@media (min-width: 768px) {
  .col-3 {
    width: 33.3333%;
  }
}

/* ─────────────── NAVIGATION (HEADER) ─────────────── */
.header {
  background-color: var(--couleur-fond);
  padding: 1rem 0;
  box-shadow: 0 2px 4px rgba(0,0,0,0.1);
  position: sticky;
  top: 0;
  z-index: 100;
}

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

.navbar .logo {
  font-size: 1.5rem;
  font-weight: bold;
  color: var(--couleur-primaire);
}

.navbar ul {
  list-style: none;
  display: flex;
  gap: 2rem;
}
.navbar ul li a {
  font-size: 1rem;
  color: var(--couleur-primaire);
  transition: color 0.3s;
}
.navbar ul li a:hover {
  color: var(--couleur-cta);
}

/* ─────────────── SECTION HERO ─────────────── */
.hero {
  background-color: var(--couleur-fond);
  min-height: 60vh;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 2rem 0;
}
.hero .hero-text {
  width: 100%;
  max-width: 600px;
}
.hero h1 {
  font-size: 2.5rem;
  margin-bottom: 1rem;
}
.hero p {
  font-size: 1.125rem;
  margin-bottom: 1.5rem;
}
.hero .hero-image {
  flex-shrink: 0;
  width: 300px;
  max-width: 100%;
}
.hero .hero-image img {
  width: 100%;
  height: auto;
  border-radius: 0.5rem;
}

/* Placeholder for hero image */
.placeholder {
  width: 100%;
  height: 200px;
  background-color: var(--couleur-secondaire);
  border-radius: 0.5rem;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #555;
  font-size: 1rem;
}

/* ─────────────── SECTION SERVICES ─────────────── */
.services {
  background-color: #FFFFFF;
  padding: 4rem 0;
  text-align: center;
}
.services h2 {
  margin-bottom: 2rem;
}
.service-card {
  background-color: #F5F5F5;
  border-radius: 0.5rem;
  padding: 2rem;
  margin-bottom: 2rem;
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}
.service-card:hover {
  transform: translateY(-5px);
  box-shadow: 0 8px 16px rgba(0,0,0,0.1);
}
.service-card .icon {
  font-size: 2rem;
  color: var(--couleur-primaire);
  margin-bottom: 1rem;
}
.service-card h3 {
  margin-bottom: 0.75rem;
}
.service-card p {
  font-size: 0.95rem;
  color: #333333;
}

/* ─────────────── SECTION À PROPOS ─────────────── */
.about {
  background-color: var(--couleur-secondaire);
  padding: 4rem 0;
  display: flex;
  align-items: center;
  gap: 2rem;
}
.about .about-text {
  flex: 1;
}
.about .about-image {
  flex: 1;
}
.about .about-image .placeholder {
  width: 100%;
  height: 200px;
}

/* ─────────────── SECTION CONTACT ─────────────── */
.contact {
  background-color: #FFFFFF;
  padding: 4rem 0;
}
.contact h2 {
  margin-bottom: 2rem;
  text-align: center;
}
.contact .form-container {
  max-width: 600px;
  margin: 0 auto;
}
.contact form {
  display: grid;
  gap: 1rem;
}
.contact input,
.contact textarea {
  width: 100%;
  padding: 0.75rem 1rem;
  border: 1px solid #CCCCCC;
  border-radius: 0.375rem;
  font-size: 1rem;
}
.contact input:focus,
.contact textarea:focus {
  outline: none;
  border-color: var(--couleur-primaire);
  box-shadow: 0 0 0 3px rgba(0,31,63,0.1);
}
.contact button {
  margin-top: 1rem;
  align-self: start;
}

/* ─────────────── FOOTER ─────────────── */
.footer {
  background-color: var(--couleur-primaire);
  color: #FFFFFF;
  padding: 2rem 0;
}
.footer .footer-container {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 2rem;
}
.footer .footer-links,
.footer .footer-legal {
  flex: 1;
  min-width: 200px;
}
.footer a {
  color: #EEEEEE;
  text-decoration: none;
  display: block;
  margin-bottom: 0.5rem;
}
.footer a:hover {
  color: #FFFFFF;
}