/* ============================================================
   EnerConseil — Stylesheet
   Design: Sobre, Editorial, Professionnel
   ============================================================ */

:root {
  --c-bg:        #F7F5F0;
  --c-surface:   #FFFFFF;
  --c-text:      #1A1A18;
  --c-muted:     #6B6B65;
  --c-accent:    #2A5C3F;   /* Vert profond */
  --c-accent2:   #C8A84B;   /* Or chaud */
  --c-border:    #E2DED6;
  --c-hero-bg:   #1A2E23;   /* Vert très sombre */

  --font-display: 'Playfair Display', Georgia, serif;
  --font-body:    'DM Sans', sans-serif;

  --radius:   4px;
  --shadow:   0 2px 16px rgba(0,0,0,0.07);
  --shadow-lg:0 8px 40px rgba(0,0,0,0.12);

  --max-w: 1160px;
  --gap:   clamp(1.5rem, 4vw, 3rem);
}

/* ── 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(--c-bg);
  color: var(--c-text);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }

/* ── Typography ── */
h1, h2, h3, h4 {
  font-family: var(--font-display);
  font-weight: 600;
  line-height: 1.2;
  color: var(--c-text);
}
h1 { font-size: clamp(2.2rem, 5vw, 3.8rem); }
h2 { font-size: clamp(1.8rem, 3.5vw, 2.8rem); }
h3 { font-size: clamp(1.2rem, 2vw, 1.5rem); }
p  { color: var(--c-muted); max-width: 65ch; }

/* ── Utilities ── */
.container { max-width: var(--max-w); margin: 0 auto; padding: 0 clamp(1rem, 4vw, 2rem); }
.section    { padding: clamp(3rem, 8vw, 6rem) 0; }
.section--dark { background: var(--c-hero-bg); color: #fff; }
.section--dark h2, .section--dark h3 { color: #fff; }
.section--dark p { color: rgba(255,255,255,0.7); }
.section--alt  { background: var(--c-surface); }
.text-center   { text-align: center; }
.text-center p { margin: 0 auto; }

.label {
  display: inline-block;
  font-size: .75rem;
  font-weight: 500;
  letter-spacing: .12em;
  text-transform: uppercase;
  color: var(--c-accent);
  margin-bottom: .75rem;
}
.label--light { color: var(--c-accent2); }

/* ── Buttons ── */
.btn {
  display: inline-flex;
  align-items: center;
  gap: .5rem;
  padding: .75rem 1.75rem;
  border-radius: var(--radius);
  font-family: var(--font-body);
  font-size: .9rem;
  font-weight: 500;
  cursor: pointer;
  transition: all .2s ease;
  border: 2px solid transparent;
}
.btn-primary {
  background: var(--c-accent);
  color: #fff;
}
.btn-primary:hover { background: #1f4430; transform: translateY(-1px); box-shadow: var(--shadow); }

.btn-gold {
  background: var(--c-accent2);
  color: var(--c-hero-bg);
}
.btn-gold:hover { background: #b8943a; transform: translateY(-1px); }

.btn-outline {
  border-color: var(--c-accent);
  color: var(--c-accent);
  background: transparent;
}
.btn-outline:hover { background: var(--c-accent); color: #fff; }

.btn-outline-light {
  border-color: rgba(255,255,255,0.5);
  color: #fff;
}
.btn-outline-light:hover { border-color: var(--c-accent2); color: var(--c-accent2); }

/* ── Header ── */
.site-header {
  position: fixed; top: 0; left: 0; right: 0;
  z-index: 100;
  background: rgba(247,245,240,0.95);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--c-border);
  transition: box-shadow .3s;
}
.site-header.scrolled { box-shadow: var(--shadow); }

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 68px;
}

.logo {
  display: flex;
  align-items: center;
  gap: .6rem;
  font-family: var(--font-display);
  font-size: 1.4rem;
  font-weight: 600;
  color: var(--c-text);
}
.logo-icon { font-size: 1.2rem; }

.main-nav {
  display: flex;
  align-items: center;
  gap: 2rem;
}
.main-nav a {
  font-size: .9rem;
  font-weight: 400;
  color: var(--c-muted);
  transition: color .2s;
  position: relative;
}
.main-nav a::after {
  content: '';
  position: absolute;
  bottom: -4px; left: 0; right: 0;
  height: 1px;
  background: var(--c-accent);
  transform: scaleX(0);
  transition: transform .2s;
}
.main-nav a:hover, .main-nav a.active { color: var(--c-text); }
.main-nav a:hover::after, .main-nav a.active::after { transform: scaleX(1); }
.main-nav .nav-cta {
  background: var(--c-accent);
  color: #fff;
  padding: .5rem 1.2rem;
  border-radius: var(--radius);
  font-weight: 500;
}
.main-nav .nav-cta::after { display: none; }
.main-nav .nav-cta:hover { background: #1f4430; color: #fff; }

.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: .4rem;
}
.nav-toggle span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--c-text);
  transition: all .3s;
}

/* ── Hero ── */
.hero {
  background: var(--c-hero-bg);
  padding: clamp(6rem, 14vw, 10rem) 0 clamp(4rem, 8vw, 6rem);
  position: relative;
  overflow: hidden;
}
.hero::before {
  content: '';
  position: absolute;
  top: -40%; right: -10%;
  width: 60vw; height: 60vw;
  max-width: 700px; max-height: 700px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(42,92,63,0.35) 0%, transparent 70%);
  pointer-events: none;
}
.hero-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--gap);
  align-items: center;
}
.hero-content { color: #fff; }
.hero-content .label { color: var(--c-accent2); }
.hero-content h1 { color: #fff; margin-bottom: 1.25rem; }
.hero-content p {
  color: rgba(255,255,255,0.72);
  font-size: 1.1rem;
  max-width: 48ch;
  margin-bottom: 2rem;
}
.hero-actions { display: flex; gap: 1rem; flex-wrap: wrap; }

.hero-card {
  background: rgba(255,255,255,0.06);
  border: 1px solid rgba(255,255,255,0.1);
  border-radius: 8px;
  padding: 2rem;
  backdrop-filter: blur(4px);
}
.hero-card blockquote {
  font-family: var(--font-display);
  font-size: 1.15rem;
  font-style: italic;
  color: rgba(255,255,255,0.85);
  line-height: 1.6;
  margin-bottom: 1.5rem;
}
.hero-card blockquote::before {
  content: '"';
  font-size: 4rem;
  color: var(--c-accent2);
  line-height: 0;
  vertical-align: -1rem;
  margin-right: .25rem;
  font-style: normal;
}
.hero-stats {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
  border-top: 1px solid rgba(255,255,255,0.1);
  padding-top: 1.5rem;
}
.stat-item { text-align: center; }
.stat-number {
  display: block;
  font-family: var(--font-display);
  font-size: 2rem;
  color: var(--c-accent2);
}
.stat-label { font-size: .8rem; color: rgba(255,255,255,0.55); text-transform: uppercase; letter-spacing: .08em; }

/* ── Questions Section ── */
.questions-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 1.5rem;
  margin-top: 3rem;
}
.question-item {
  background: var(--c-surface);
  border: 1px solid var(--c-border);
  border-left: 3px solid var(--c-accent);
  padding: 1.5rem;
  border-radius: 0 var(--radius) var(--radius) 0;
  transition: box-shadow .2s;
}
.question-item:hover { box-shadow: var(--shadow); }
.question-item p { font-size: .95rem; color: var(--c-text); max-width: none; }
.question-icon { font-size: 1.4rem; margin-bottom: .75rem; }

/* ── Piliers / Services ── */
.services-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
  margin-top: 3rem;
}
.service-card {
  background: var(--c-surface);
  border: 1px solid var(--c-border);
  border-radius: 8px;
  padding: 2rem;
  transition: all .25s;
  position: relative;
  overflow: hidden;
}
.service-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 3px;
  background: var(--c-accent);
  transform: scaleX(0);
  transition: transform .3s;
}
.service-card:hover { box-shadow: var(--shadow-lg); transform: translateY(-3px); }
.service-card:hover::before { transform: scaleX(1); }

.service-letter {
  font-family: var(--font-display);
  font-size: 3rem;
  color: var(--c-border);
  line-height: 1;
  margin-bottom: .5rem;
  font-weight: 600;
}
.service-card h3 { margin-bottom: .75rem; font-size: 1.2rem; }
.service-card > p { font-size: .9rem; margin-bottom: 1.25rem; }
.service-card ul {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: .4rem;
}
.service-card ul li {
  font-size: .85rem;
  color: var(--c-muted);
  padding-left: 1.2rem;
  position: relative;
}
.service-card ul li::before {
  content: '—';
  position: absolute; left: 0;
  color: var(--c-accent);
}
.service-cta { margin-top: 1.5rem; }
.service-cta a { color: var(--c-accent); font-size: .9rem; font-weight: 500; display: inline-flex; align-items: center; gap: .4rem; }
.service-cta a:hover { gap: .7rem; }

/* ── Atouts ── */
.atouts-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 2rem;
  margin-top: 3rem;
}
.atout-item { text-align: center; padding: 1.5rem; }
.atout-icon {
  font-size: 2.2rem;
  margin-bottom: 1rem;
  display: block;
}
.atout-item h3 { font-size: 1.05rem; margin-bottom: .5rem; color: #fff; }
.atout-item p { font-size: .9rem; max-width: none; }

/* ── Cibles ── */
.cibles-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
  margin-top: 3rem;
}
.cible-card {
  background: var(--c-surface);
  border: 1px solid var(--c-border);
  border-radius: 8px;
  padding: 2rem;
  text-align: center;
}
.cible-icon { font-size: 2.5rem; margin-bottom: 1rem; display: block; }
.cible-card h3 { font-size: 1.1rem; margin-bottom: .5rem; }
.cible-card p { font-size: .9rem; }

/* ── CTA Banner ── */
.cta-banner { text-align: center; padding: clamp(3rem, 8vw, 5rem) 0; }
.cta-banner h2 { color: #fff; margin-bottom: 1rem; }
.cta-banner p { margin: 0 auto 2rem; max-width: 50ch; }
.cta-actions { display: flex; gap: 1rem; justify-content: center; flex-wrap: wrap; }

/* ── Contact Form ── */
.contact-layout {
  display: grid;
  grid-template-columns: 1fr 1.6fr;
  gap: var(--gap);
  align-items: start;
}
.contact-info h2 { margin-bottom: 1rem; }
.contact-detail {
  display: flex; align-items: flex-start; gap: 1rem;
  margin-bottom: 1.25rem;
}
.contact-detail-icon { font-size: 1.3rem; margin-top: .1rem; }
.contact-detail-text a { color: var(--c-accent); }

.contact-form {
  background: var(--c-surface);
  border: 1px solid var(--c-border);
  border-radius: 8px;
  padding: clamp(1.5rem, 4vw, 2.5rem);
}
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 1rem; }
.form-group { margin-bottom: 1.25rem; }
.form-group label {
  display: block;
  font-size: .85rem;
  font-weight: 500;
  margin-bottom: .4rem;
  color: var(--c-text);
}
.form-group input,
.form-group select,
.form-group textarea {
  width: 100%;
  padding: .7rem 1rem;
  border: 1px solid var(--c-border);
  border-radius: var(--radius);
  font-family: var(--font-body);
  font-size: .9rem;
  color: var(--c-text);
  background: var(--c-bg);
  transition: border-color .2s;
  appearance: none;
}
.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--c-accent);
}
.form-group textarea { resize: vertical; min-height: 130px; }
.form-notice { font-size: .8rem; color: var(--c-muted); margin-bottom: 1.25rem; }
.form-success {
  background: #e8f5ee;
  border: 1px solid #a8d5bc;
  color: var(--c-accent);
  padding: 1rem;
  border-radius: var(--radius);
  margin-bottom: 1rem;
  display: none;
}

/* ── About ── */
.about-layout {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--gap);
  align-items: start;
}
.about-content h2 { margin-bottom: 1rem; }
.about-content p { margin-bottom: 1rem; }
.about-values { margin-top: 2rem; }
.value-item {
  display: flex; gap: 1rem; align-items: flex-start;
  padding: 1rem 0;
  border-bottom: 1px solid var(--c-border);
}
.value-item:last-child { border: none; }
.value-icon { font-size: 1.5rem; flex-shrink: 0; }
.value-item h4 { font-size: 1rem; margin-bottom: .25rem; }
.value-item p { font-size: .9rem; max-width: none; }

.timeline { padding-left: 1rem; }
.timeline-item {
  position: relative;
  padding: 0 0 2rem 2rem;
  border-left: 2px solid var(--c-border);
}
.timeline-item:last-child { padding-bottom: 0; }
.timeline-item::before {
  content: '';
  position: absolute; left: -5px; top: 4px;
  width: 8px; height: 8px;
  border-radius: 50%;
  background: var(--c-accent);
}
.timeline-year {
  font-size: .8rem;
  font-weight: 500;
  color: var(--c-accent2);
  letter-spacing: .08em;
  margin-bottom: .25rem;
}
.timeline-item h4 { font-size: 1rem; font-family: var(--font-body); margin-bottom: .25rem; }
.timeline-item p { font-size: .875rem; max-width: none; }

/* ── Page Hero (inner pages) ── */
.page-hero {
  background: var(--c-hero-bg);
  padding: clamp(5rem, 10vw, 7rem) 0 clamp(2.5rem, 5vw, 4rem);
  text-align: center;
}
.page-hero .label { color: var(--c-accent2); }
.page-hero h1 { color: #fff; margin-bottom: 1rem; }
.page-hero p { color: rgba(255,255,255,0.7); margin: 0 auto; font-size: 1.1rem; max-width: 55ch; }

/* ── Breadcrumb ── */
.breadcrumb {
  padding: .75rem 0;
  font-size: .8rem;
  color: var(--c-muted);
  border-bottom: 1px solid var(--c-border);
}
.breadcrumb a { color: var(--c-accent); }
.breadcrumb span { margin: 0 .4rem; }

/* ── Mentions Légales ── */
.legal-content { max-width: 800px; margin: 0 auto; }
.legal-content h2 { font-size: 1.4rem; margin: 2rem 0 .75rem; }
.legal-content p, .legal-content li { font-size: .95rem; margin-bottom: .5rem; }

/* ── Footer ── */
.site-footer {
  background: var(--c-text);
  color: rgba(255,255,255,0.7);
  padding: clamp(3rem, 6vw, 4rem) 0 0;
}
.footer-inner {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr 1.5fr;
  gap: var(--gap);
  padding-bottom: 3rem;
  border-bottom: 1px solid rgba(255,255,255,0.08);
}
.footer-brand .logo { color: #fff; margin-bottom: .75rem; }
.footer-brand p { font-size: .875rem; max-width: none; }
.footer-links h4, .footer-contact h4 {
  color: #fff;
  font-family: var(--font-body);
  font-size: .8rem;
  font-weight: 500;
  letter-spacing: .1em;
  text-transform: uppercase;
  margin-bottom: 1rem;
}
.footer-links { display: flex; flex-direction: column; gap: .6rem; }
.footer-links a { font-size: .875rem; transition: color .2s; }
.footer-links a:hover { color: var(--c-accent2); }
.footer-contact p { font-size: .875rem; margin-bottom: .5rem; max-width: none; }
.footer-contact a { color: rgba(255,255,255,0.7); transition: color .2s; }
.footer-contact a:hover { color: var(--c-accent2); }
.footer-contact .btn { margin-top: 1rem; font-size: .85rem; }

.footer-bottom {
  padding: 1.25rem 0;
}
.footer-bottom .container {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: .8rem;
}
.footer-bottom a { color: var(--c-accent2); }

/* ── Responsive ── */
@media (max-width: 900px) {
  .hero-grid { grid-template-columns: 1fr; }
  .hero-card { display: none; }
  .services-grid { grid-template-columns: 1fr; }
  .cibles-grid { grid-template-columns: 1fr; }
  .contact-layout { grid-template-columns: 1fr; }
  .about-layout { grid-template-columns: 1fr; }
  .footer-inner { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 640px) {
  .main-nav {
    display: none;
    position: fixed;
    inset: 68px 0 0 0;
    background: var(--c-surface);
    flex-direction: column;
    align-items: flex-start;
    gap: 0;
    padding: 1rem 0;
    border-top: 1px solid var(--c-border);
    z-index: 99;
  }
  .main-nav.open { display: flex; }
  .main-nav a {
    width: 100%;
    padding: 1rem 1.5rem;
    border-bottom: 1px solid var(--c-border);
    font-size: 1rem;
  }
  .main-nav a::after { display: none; }
  .main-nav .nav-cta { border-radius: 0; }
  .nav-toggle { display: flex; }
  .form-row { grid-template-columns: 1fr; }
  .footer-inner { grid-template-columns: 1fr; }
  .footer-bottom .container { flex-direction: column; gap: .5rem; text-align: center; }
  .hero-actions { flex-direction: column; align-items: flex-start; }
}