/* ============================================================
   MENUISERIES CHARDON SA — Styles
   Palette : Chêne chaud / Forêt / Ivoire — Menuiserie artisanale
   ============================================================ */

:root {
  /* Couleurs principales */
  --primary:        #6B3F1F;   /* Brun chêne profond */
  --primary-dark:   #4A2A10;   /* Brun foncé */
  --primary-light:  #A0643A;   /* Brun clair / cuivre */
  --accent:         #3A6B47;   /* Vert forêt — nature, durabilité */
  --accent-light:   #5A9E6F;   /* Vert moyen */

  /* Neutres */
  --bg:             #FDFAF5;   /* Ivoire chaleureux */
  --bg-alt:         #F2EDE3;   /* Crème boisé */
  --surface:        #FFFFFF;
  --border:         #DDD5C8;

  /* Texte */
  --text:           #1E1209;   /* Brun quasi-noir */
  --text-muted:     #7A6352;   /* Gris-brun */
  --text-light:     #BBA99A;

  /* Espacement */
  --space-xs:       0.5rem;
  --space-sm:       1rem;
  --space-md:       2rem;
  --space-lg:       4rem;
  --space-xl:       6rem;

  /* Typographie */
  --font-body:      'Segoe UI', system-ui, -apple-system, sans-serif;
  --font-serif:     Georgia, 'Times New Roman', serif;

  /* Rayons */
  --radius-sm:      6px;
  --radius-md:      12px;
  --radius-lg:      24px;

  /* Ombres */
  --shadow-sm:      0 2px 8px rgba(107,63,31,.08);
  --shadow-md:      0 6px 24px rgba(107,63,31,.13);
  --shadow-lg:      0 16px 48px rgba(107,63,31,.18);
}

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

html { scroll-behavior: smooth; font-size: 16px; }

body {
  font-family: var(--font-body);
  background: var(--bg);
  color: var(--text);
  line-height: 1.65;
}

img { max-width: 100%; display: block; }
a { color: var(--primary); text-decoration: none; transition: color .2s; }
a:hover { color: var(--primary-light); }
a:focus-visible { outline: 3px solid var(--accent); outline-offset: 3px; border-radius: 4px; }
address { font-style: normal; }
ul { list-style: none; }

.container {
  width: 100%;
  max-width: 1100px;
  margin-inline: auto;
  padding-inline: var(--space-sm);
}

/* ============================================================
   BUTTONS
   ============================================================ */
.btn-primary,
.btn-secondary {
  display: inline-block;
  padding: .75rem 1.75rem;
  border-radius: var(--radius-sm);
  font-weight: 600;
  font-size: .95rem;
  cursor: pointer;
  border: 2px solid transparent;
  transition: background .2s, color .2s, transform .15s, box-shadow .2s;
  text-align: center;
}

.btn-primary {
  background: var(--primary);
  color: #fff;
  border-color: var(--primary);
}
.btn-primary:hover {
  background: var(--primary-dark);
  border-color: var(--primary-dark);
  color: #fff;
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

.btn-secondary {
  background: transparent;
  color: var(--primary);
  border-color: var(--primary);
}
.btn-secondary:hover {
  background: var(--primary);
  color: #fff;
  transform: translateY(-2px);
}

/* ============================================================
   HEADER
   ============================================================ */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: var(--surface);
  border-bottom: 2px solid var(--border);
  box-shadow: var(--shadow-sm);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-sm);
  padding-block: .9rem;
}

.logo {
  display: flex;
  align-items: center;
  gap: .75rem;
  text-decoration: none;
}

.logo-icon {
  font-size: 2rem;
  line-height: 1;
}

.logo-name {
  display: block;
  font-family: var(--font-serif);
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--primary);
  line-height: 1.2;
}

.logo-tagline {
  display: block;
  font-size: .7rem;
  color: var(--text-muted);
  letter-spacing: .05em;
  text-transform: uppercase;
}

.main-nav ul {
  display: flex;
  align-items: center;
  gap: var(--space-md);
}

.main-nav a {
  font-size: .9rem;
  font-weight: 500;
  color: var(--text);
}
.main-nav a:hover { color: var(--primary); }

.btn-nav {
  background: var(--primary);
  color: #fff !important;
  padding: .5rem 1.25rem;
  border-radius: var(--radius-sm);
  font-weight: 600 !important;
  transition: background .2s, transform .15s;
}
.btn-nav:hover {
  background: var(--primary-dark) !important;
  transform: translateY(-1px);
}

/* ============================================================
   HERO
   ============================================================ */
.hero {
  background: linear-gradient(135deg, var(--primary-dark) 0%, var(--primary) 55%, var(--primary-light) 100%);
  color: #fff;
  padding-block: var(--space-lg);
  position: relative;
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background: url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none' fill-rule='evenodd'%3E%3Cg fill='%23ffffff' fill-opacity='0.04'%3E%3Cpath d='M36 34v-4h-2v4h-4v2h4v4h2v-4h4v-2h-4zm0-30V0h-2v4h-4v2h4v4h2V6h4V4h-4zM6 34v-4H4v4H0v2h4v4h2v-4h4v-2H6zM6 4V0H4v4H0v2h4v4h2V6h4V4H6z'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E");
  opacity: 1;
}

.hero-content {
  position: relative;
  z-index: 1;
  max-width: 640px;
}

.hero-label {
  font-size: .8rem;
  text-transform: uppercase;
  letter-spacing: .12em;
  color: rgba(255,255,255,.7);
  margin-bottom: var(--space-xs);
  font-weight: 600;
}

.hero h1 {
  font-family: var(--font-serif);
  font-size: clamp(2rem, 5vw, 3.2rem);
  line-height: 1.2;
  margin-bottom: var(--space-sm);
  font-weight: 700;
}

.hero h1 em {
  font-style: italic;
  color: #F5D9B8;
}

.hero-sub {
  font-size: 1.05rem;
  color: rgba(255,255,255,.85);
  margin-bottom: var(--space-md);
  max-width: 520px;
}

.hero-cta {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
}

.hero .btn-primary {
  background: #fff;
  color: var(--primary);
  border-color: #fff;
}
.hero .btn-primary:hover {
  background: var(--bg-alt);
  border-color: var(--bg-alt);
  color: var(--primary-dark);
}

.hero .btn-secondary {
  color: #fff;
  border-color: rgba(255,255,255,.6);
}
.hero .btn-secondary:hover {
  background: rgba(255,255,255,.15);
  border-color: #fff;
  color: #fff;
}

.hero-visual { display: none; }

.hero-img-placeholder {
  width: 360px;
  height: 420px;
  border-radius: var(--radius-lg);
  background: rgba(255,255,255,.1);
  backdrop-filter: blur(4px);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 5rem;
  border: 2px solid rgba(255,255,255,.2);
}

/* ============================================================
   SERVICES
   ============================================================ */
.services {
  padding-block: var(--space-lg);
  background: var(--bg);
}

.services h2,
.why h2,
.contact h2 {
  font-family: var(--font-serif);
  font-size: clamp(1.6rem, 3vw, 2.2rem);
  color: var(--primary);
  margin-bottom: .5rem;
}

.section-sub {
  color: var(--text-muted);
  margin-bottom: var(--space-md);
  font-size: 1rem;
}

.services-grid {
  display: grid;
  gap: var(--space-sm);
  grid-template-columns: 1fr;
}

.service-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: var(--space-md);
  box-shadow: var(--shadow-sm);
  transition: transform .2s, box-shadow .2s;
  border-top: 4px solid var(--primary);
}

.service-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
}

.service-icon {
  font-size: 2.4rem;
  margin-bottom: .75rem;
}

.service-card h3 {
  font-family: var(--font-serif);
  font-size: 1.15rem;
  color: var(--primary);
  margin-bottom: .5rem;
}

.service-card p {
  color: var(--text-muted);
  font-size: .92rem;
  line-height: 1.6;
}

/* ============================================================
   WHY / DIFFÉRENCIANTS
   ============================================================ */
.why {
  padding-block: var(--space-lg);
  background: var(--bg-alt);
}

.why-grid {
  display: grid;
  gap: var(--space-md);
  grid-template-columns: 1fr;
  margin-top: var(--space-md);
}

.why-item {
  background: var(--surface);
  border-radius: var(--radius-md);
  padding: var(--space-md);
  border-left: 5px solid var(--accent);
  box-shadow: var(--shadow-sm);
}

.why-number {
  font-family: var(--font-serif);
  font-size: 2.8rem;
  font-weight: 700;
  color: var(--border);
  line-height: 1;
  margin-bottom: .5rem;
  letter-spacing: -.04em;
}

.why-item h3 {
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--primary);
  margin-bottom: .4rem;
}

.why-item p {
  color: var(--text-muted);
  font-size: .92rem;
}

/* ============================================================
   CONTACT
   ============================================================ */
.contact {
  padding-block: var(--space-lg);
  background: var(--bg);
}

.contact-inner {
  display: grid;
  gap: var(--space-lg);
  grid-template-columns: 1fr;
}

.contact-text p {
  color: var(--text-muted);
  margin-block: .75rem var(--space-md);
  font-size: 1rem;
}

.contact-list {
  display: flex;
  flex-direction: column;
  gap: .75rem;
}

.contact-list li {
  display: flex;
  align-items: center;
  gap: .75rem;
  font-size: .95rem;
  color: var(--text);
}

.contact-icon {
  font-size: 1.3rem;
  flex-shrink: 0;
}

.contact-list a {
  color: var(--primary);
  font-weight: 500;
}
.contact-list a:hover { color: var(--primary-light); }

/* FORM */
.contact-form {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: var(--space-md);
  box-shadow: var(--shadow-md);
  display: flex;
  flex-direction: column;
  gap: 1.1rem;
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: .35rem;
}

.form-group label {
  font-size: .85rem;
  font-weight: 600;
  color: var(--text);
}

.form-group input,
.form-group textarea {
  width: 100%;
  padding: .65rem .9rem;
  border: 1.5px solid var(--border);
  border-radius: var(--radius-sm);
  font-family: var(--font-body);
  font-size: .95rem;
  color: var(--text);
  background: var(--bg);
  transition: border-color .2s, box-shadow .2s;
  resize: vertical;
}

.form-group input:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(107,63,31,.12);
}

/* ============================================================
   FOOTER
   ============================================================ */
.site-footer {
  background: var(--primary-dark);
  color: rgba(255,255,255,.7);
  padding-block: var(--space-md);
}

.footer-inner {
  display: flex;
  flex-direction: column;
  gap: .5rem;
}

.footer-brand {
  font-family: var(--font-serif);
  font-size: 1rem;
  color: #fff;
  font-weight: 700;
}

.footer-legal {
  font-size: .78rem;
  line-height: 1.7;
  color: rgba(255,255,255,.6);
}

.footer-legal a {
  color: rgba(255,255,255,.8);
  text-decoration: underline;
}
.footer-legal a:hover { color: #fff; }

/* ============================================================
   RESPONSIVE — 768px+
   ============================================================ */
@media (min-width: 768px) {

  .hero {
    display: flex;
    align-items: center;
    min-height: 85vh;
    padding-block: var(--space-xl);
  }

  .hero > .container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--space-lg);
  }

  .hero-visual {
    display: flex;
    justify-content: flex-end;
    flex-shrink: 0;
  }

  .services-grid {
    grid-template-columns: repeat(3, 1fr);
  }

  .why-grid {
    grid-template-columns: repeat(3, 1fr);
  }

  .contact-inner {
    grid-template-columns: 1fr 1.2fr;
    align-items: start;
  }

  .footer-inner {
    flex-direction: row;
    justify-content: space-between;
    align-items: flex-end;
    flex-wrap: wrap;
  }

  .footer-legal {
    max-width: 680px;
    text-align: right;
  }

  .main-nav ul {
    gap: 1.5rem;
  }
}

/* ============================================================
   RESPONSIVE — 1024px+
   ============================================================ */
@media (min-width: 1024px) {
  .container {
    padding-inline: var(--space-md);
  }
}