/* ═══════════════════════════════════════════════════════════════
   UTOPIA.BZH — Feuille de style principale
   Palette : Blanc dominant · Teal accent · Vert forêt ponctuel
   ═══════════════════════════════════════════════════════════════ */

@import url('https://fonts.googleapis.com/css2?family=Playfair+Display:ital,wght@0,400;0,700;1,400&family=DM+Sans:wght@300;400;500&display=swap');

/* ── Variables ─────────────────────────────────────────────────── */
:root {
  --dark:    #1A3A2A;
  --mid:     #2C5F44;
  --teal:    #4ECDC4;
  --teal-lt: #A8EDE9;
  --white:   #FFFFFF;
  --off:     #F7F5F0;
  --cream:   #F0EDE6;
  --text:    #1A1A1A;
  --muted:   #6B7280;
  --border:  #E5E7EB;

  --font-serif: 'Playfair Display', Georgia, serif;
  --font-sans:  'DM Sans', system-ui, sans-serif;

  --radius:  4px;
  --shadow:  0 1px 3px rgba(0,0,0,.06), 0 4px 16px rgba(0,0,0,.06);
  --shadow-lg: 0 8px 40px rgba(0,0,0,.10);

  --nav-h: 68px;
  --max:   1120px;
  --gap:   clamp(1.5rem, 4vw, 3rem);
}

/* ── Reset ─────────────────────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; font-size: 16px; }
body {
  font-family: var(--font-sans);
  color: var(--text);
  background: var(--white);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
}
img, svg { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }
ul { list-style: none; }
button { cursor: pointer; border: none; background: none; font-family: inherit; }

/* ── Utilitaires ───────────────────────────────────────────────── */
.container { width: 100%; max-width: var(--max); margin-inline: auto; padding-inline: clamp(1rem, 5vw, 2rem); }
.section    { padding-block: clamp(4rem, 8vw, 7rem); }
.section--alt { background: var(--off); }
.section--dark { background: var(--dark); color: var(--white); }

.tag {
  display: inline-block;
  font-size: .72rem;
  font-weight: 500;
  letter-spacing: .12em;
  text-transform: uppercase;
  color: var(--teal);
  margin-bottom: .75rem;
}
.tag--light { color: var(--teal-lt); }

.eyebrow {
  font-family: var(--font-sans);
  font-size: .75rem;
  font-weight: 500;
  letter-spacing: .18em;
  text-transform: uppercase;
  color: var(--muted);
  margin-bottom: 1rem;
}

/* ── Typographie ───────────────────────────────────────────────── */
h1, h2, h3, h4 { font-family: var(--font-serif); line-height: 1.18; }
h1 { font-size: clamp(2.4rem, 5.5vw, 4.2rem); }
h2 { font-size: clamp(1.8rem, 3.5vw, 2.8rem); }
h3 { font-size: clamp(1.2rem, 2vw, 1.5rem); }
h4 { font-size: 1.1rem; }
p  { color: var(--muted); line-height: 1.8; }

.lead {
  font-size: clamp(1rem, 1.8vw, 1.2rem);
  line-height: 1.75;
  color: var(--muted);
  max-width: 62ch;
}
.text-center { text-align: center; }
.text-center .lead { margin-inline: auto; }

/* ── Boutons ───────────────────────────────────────────────────── */
.btn {
  display: inline-flex;
  align-items: center;
  gap: .5rem;
  padding: .85rem 1.8rem;
  border-radius: var(--radius);
  font-size: .9rem;
  font-weight: 500;
  font-family: var(--font-sans);
  transition: all .2s ease;
  white-space: nowrap;
}
.btn-primary {
  background: var(--teal);
  color: var(--dark);
}
.btn-primary:hover { background: #3dbdb4; transform: translateY(-1px); box-shadow: 0 4px 20px rgba(78,205,196,.35); }

.btn-outline {
  border: 1.5px solid var(--dark);
  color: var(--dark);
}
.btn-outline:hover { background: var(--dark); color: var(--white); }

.btn-ghost {
  border: 1.5px solid rgba(255,255,255,.3);
  color: var(--white);
}
.btn-ghost:hover { background: rgba(255,255,255,.12); border-color: rgba(255,255,255,.6); }

/* ── Navigation ────────────────────────────────────────────────── */
.nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  height: var(--nav-h);
  z-index: 100;
  transition: background .3s, box-shadow .3s;
}
.nav.scrolled {
  background: rgba(255,255,255,.95);
  backdrop-filter: blur(12px);
  box-shadow: 0 1px 0 var(--border);
}
.nav__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
}
.nav__logo {
  font-family: var(--font-serif);
  font-size: 1.25rem;
  color: var(--dark);
  font-weight: 700;
  letter-spacing: -.01em;
}
.nav__logo span { color: var(--teal); }

.nav__links {
  display: flex;
  align-items: center;
  gap: 2rem;
}
.nav__links a {
  font-size: .875rem;
  font-weight: 400;
  color: var(--dark);
  opacity: .75;
  transition: opacity .2s;
}
.nav__links a:hover, .nav__links a.active { opacity: 1; }

.nav__cta {
  margin-left: .5rem;
  padding: .6rem 1.2rem;
  background: var(--teal);
  color: var(--dark) !important;
  border-radius: var(--radius);
  font-weight: 500 !important;
  opacity: 1 !important;
  font-size: .85rem !important;
  transition: background .2s, transform .2s !important;
}
.nav__cta:hover { background: #3dbdb4 !important; transform: translateY(-1px); }

/* Hamburger */
.nav__burger {
  display: none;
  flex-direction: column;
  gap: 5px;
  padding: 8px;
  z-index: 110;
}
.nav__burger span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--dark);
  border-radius: 2px;
  transition: all .3s ease;
}
.nav__burger.open span:nth-child(1) { transform: rotate(45deg) translate(5px, 5px); }
.nav__burger.open span:nth-child(2) { opacity: 0; transform: translateX(-8px); }
.nav__burger.open span:nth-child(3) { transform: rotate(-45deg) translate(5px, -5px); }

/* Mobile menu */
.nav__mobile {
  display: none;
  position: fixed;
  inset: 0;
  background: var(--white);
  z-index: 99;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 2rem;
  padding: 2rem;
}
.nav__mobile.open { display: flex; }
.nav__mobile a {
  font-family: var(--font-serif);
  font-size: 1.8rem;
  color: var(--dark);
  transition: color .2s;
}
.nav__mobile a:hover { color: var(--teal); }
.nav__mobile .btn { margin-top: 1rem; font-size: 1rem; }

/* ── Hero ──────────────────────────────────────────────────────── */
.hero {
  min-height: 100svh;
  display: flex;
  align-items: center;
  padding-top: var(--nav-h);
  position: relative;
  overflow: hidden;
}
.hero::before {
  content: '';
  position: absolute;
  top: -20%;
  right: -10%;
  width: 55vw;
  height: 55vw;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(78,205,196,.10) 0%, transparent 70%);
  pointer-events: none;
}
.hero::after {
  content: '';
  position: absolute;
  bottom: 5%;
  left: -5%;
  width: 35vw;
  height: 35vw;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(26,58,42,.06) 0%, transparent 70%);
  pointer-events: none;
}
.hero__inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
  align-items: center;
}
.hero__label {
  display: inline-flex;
  align-items: center;
  gap: .5rem;
  font-size: .75rem;
  font-weight: 500;
  letter-spacing: .18em;
  text-transform: uppercase;
  color: var(--mid);
  margin-bottom: 1.5rem;
}
.hero__label::before {
  content: '';
  display: block;
  width: 24px;
  height: 1.5px;
  background: var(--teal);
}
.hero__title { margin-bottom: 1.5rem; }
.hero__title em { font-style: italic; color: var(--mid); }
.hero__sub { max-width: 46ch; margin-bottom: 2.5rem; font-size: 1.05rem; }
.hero__actions { display: flex; gap: 1rem; flex-wrap: wrap; align-items: center; }

.hero__visual {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}
.hero__card {
  background: var(--off);
  border-radius: 8px;
  padding: 1.25rem 1.5rem;
  border-left: 3px solid var(--teal);
  display: flex;
  gap: 1rem;
  align-items: flex-start;
  transition: transform .25s, box-shadow .25s;
}
.hero__card:hover { transform: translateX(4px); box-shadow: var(--shadow); }
.hero__card-num {
  font-family: var(--font-serif);
  font-size: 1.6rem;
  color: var(--teal);
  line-height: 1;
  flex-shrink: 0;
  width: 2rem;
}
.hero__card-text {
  font-size: .875rem;
  color: var(--text);
  line-height: 1.6;
}

/* ── Section intro chiffres ────────────────────────────────────── */
.stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1px;
  background: var(--border);
  border: 1px solid var(--border);
  border-radius: 8px;
  overflow: hidden;
}
.stat {
  background: var(--white);
  padding: 2rem 1.5rem;
  text-align: center;
}
.stat__num {
  font-family: var(--font-serif);
  font-size: 2.4rem;
  color: var(--dark);
  line-height: 1;
  margin-bottom: .4rem;
}
.stat__num span { color: var(--teal); }
.stat__label { font-size: .8rem; color: var(--muted); letter-spacing: .04em; }

/* ── Valeurs ───────────────────────────────────────────────────── */
.values-grid {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 1.5rem;
  margin-top: 3.5rem;
}
.value-card {
  padding: 2rem 1.25rem;
  border: 1px solid var(--border);
  border-radius: 8px;
  text-align: center;
  transition: border-color .25s, box-shadow .25s, transform .25s;
  position: relative;
  overflow: hidden;
}
.value-card::after {
  content: '';
  position: absolute;
  bottom: 0; left: 0; right: 0;
  height: 3px;
  background: var(--teal);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform .3s ease;
}
.value-card:hover { border-color: var(--teal); box-shadow: var(--shadow); transform: translateY(-3px); }
.value-card:hover::after { transform: scaleX(1); }
.value-card__icon {
  width: 44px;
  height: 44px;
  background: var(--off);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 1.25rem;
  font-size: 1.2rem;
}
.value-card h3 {
  font-size: 1rem;
  margin-bottom: .75rem;
  color: var(--dark);
}
.value-card p { font-size: .825rem; line-height: 1.65; }

/* ── Publics cibles ────────────────────────────────────────────── */
.publics-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1.5rem;
  margin-top: 3rem;
}
.public-card {
  display: flex;
  gap: 1.25rem;
  padding: 1.75rem;
  border-radius: 8px;
  border: 1px solid var(--border);
  align-items: flex-start;
  transition: box-shadow .25s, transform .25s;
}
.public-card:hover { box-shadow: var(--shadow); transform: translateY(-2px); }
.public-card__icon {
  font-size: 1.6rem;
  flex-shrink: 0;
  width: 48px;
  height: 48px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--off);
  border-radius: 8px;
}
.public-card h3 { font-size: 1.05rem; margin-bottom: .4rem; color: var(--dark); }
.public-card p  { font-size: .875rem; }

/* ── Risques ───────────────────────────────────────────────────── */
.risks-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 2rem;
  margin-top: 3rem;
}
.risk-card {
  padding: 2.5rem;
  border-radius: 8px;
  background: var(--white);
  border: 1px solid var(--border);
}
.risk-card__tag {
  font-size: .7rem;
  font-weight: 600;
  letter-spacing: .15em;
  text-transform: uppercase;
  color: var(--teal);
  margin-bottom: .75rem;
}
.risk-card h3 { font-size: 1.4rem; margin-bottom: 1.25rem; color: var(--dark); }
.risk-card ol { counter-reset: risk; display: flex; flex-direction: column; gap: .75rem; }
.risk-card ol li {
  counter-increment: risk;
  display: flex;
  gap: .75rem;
  font-size: .875rem;
  color: var(--muted);
  line-height: 1.65;
}
.risk-card ol li::before {
  content: counter(risk);
  font-family: var(--font-serif);
  font-size: 1rem;
  color: var(--teal);
  flex-shrink: 0;
  width: 1.2rem;
  padding-top: .05rem;
}

/* ── CTA banner ────────────────────────────────────────────────── */
.cta-banner {
  background: var(--dark);
  padding: clamp(4rem, 8vw, 6rem) 0;
  text-align: center;
  position: relative;
  overflow: hidden;
}
.cta-banner::before {
  content: '';
  position: absolute;
  top: -50%; left: 50%;
  transform: translateX(-50%);
  width: 80vw; height: 80vw;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(78,205,196,.08) 0%, transparent 65%);
}
.cta-banner h2 { color: var(--white); margin-bottom: 1rem; }
.cta-banner p  { color: rgba(255,255,255,.6); margin-bottom: 2.5rem; }
.cta-banner .actions { display: flex; gap: 1rem; justify-content: center; flex-wrap: wrap; }

/* ── Événements ────────────────────────────────────────────────── */
.event-card {
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: center;
  gap: 2rem;
  padding: 1.75rem 2rem;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: var(--white);
  transition: box-shadow .25s, transform .25s;
}
.event-card:hover { box-shadow: var(--shadow); transform: translateY(-2px); }
.event-card__date {
  text-align: center;
  min-width: 60px;
}
.event-card__date-day {
  font-family: var(--font-serif);
  font-size: 2rem;
  line-height: 1;
  color: var(--dark);
}
.event-card__date-month {
  font-size: .75rem;
  text-transform: uppercase;
  letter-spacing: .1em;
  color: var(--teal);
  font-weight: 600;
}
.event-card__body h3 { font-size: 1.05rem; margin-bottom: .3rem; }
.event-card__body p  { font-size: .875rem; }
.event-card__sep { width: 1px; height: 48px; background: var(--border); }

/* ── Partenaires ───────────────────────────────────────────────── */
.partners-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
  gap: 1rem;
  margin-top: 2.5rem;
}
.partner-slot {
  border: 1.5px dashed var(--border);
  border-radius: 8px;
  padding: 2rem 1rem;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  font-size: .8rem;
  color: var(--muted);
  min-height: 100px;
  transition: border-color .2s, background .2s;
}
.partner-slot:hover { border-color: var(--teal); background: rgba(78,205,196,.04); }
.partner-slot--filled {
  border-style: solid;
  border-color: var(--border);
  background: var(--white);
  font-weight: 500;
  color: var(--dark);
  box-shadow: var(--shadow);
}

/* ── Formulaire ────────────────────────────────────────────────── */
.form-grid { display: grid; gap: 1.25rem; }
.form-group { display: flex; flex-direction: column; gap: .45rem; }
.form-group label { font-size: .8rem; font-weight: 500; color: var(--dark); letter-spacing: .02em; }
.form-group input,
.form-group select,
.form-group textarea {
  padding: .8rem 1rem;
  border: 1.5px solid var(--border);
  border-radius: var(--radius);
  font-family: var(--font-sans);
  font-size: .9rem;
  color: var(--text);
  background: var(--white);
  transition: border-color .2s, box-shadow .2s;
  outline: none;
  width: 100%;
}
.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  border-color: var(--teal);
  box-shadow: 0 0 0 3px rgba(78,205,196,.15);
}
.form-group textarea { resize: vertical; min-height: 120px; }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 1rem; }
.form-note { font-size: .78rem; color: var(--muted); margin-top: .5rem; }

/* ── Footer ────────────────────────────────────────────────────── */
.footer {
  background: var(--dark);
  color: rgba(255,255,255,.7);
  padding: 4rem 0 2rem;
}
.footer__grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 3rem;
  padding-bottom: 3rem;
  border-bottom: 1px solid rgba(255,255,255,.1);
}
.footer__brand {
  font-family: var(--font-serif);
  font-size: 1.3rem;
  color: var(--white);
  margin-bottom: .75rem;
}
.footer__brand span { color: var(--teal); }
.footer__tagline { font-size: .85rem; line-height: 1.7; }
.footer__col h4 {
  font-family: var(--font-sans);
  font-size: .75rem;
  font-weight: 600;
  letter-spacing: .15em;
  text-transform: uppercase;
  color: rgba(255,255,255,.4);
  margin-bottom: 1.25rem;
}
.footer__col a {
  display: block;
  font-size: .875rem;
  color: rgba(255,255,255,.65);
  margin-bottom: .6rem;
  transition: color .2s;
}
.footer__col a:hover { color: var(--teal); }
.footer__bottom {
  padding-top: 1.75rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 1rem;
  flex-wrap: wrap;
}
.footer__copy { font-size: .78rem; }
.footer__mention { font-size: .78rem; color: rgba(255,255,255,.35); }

/* ── Page header ───────────────────────────────────────────────── */
.page-header {
  padding-top: calc(var(--nav-h) + 4rem);
  padding-bottom: 4rem;
  background: var(--off);
  border-bottom: 1px solid var(--border);
}
.page-header h1 { margin-bottom: 1rem; }

/* ── Animations au scroll ──────────────────────────────────────── */
.reveal {
  opacity: 0;
  transform: translateY(28px);
  transition: opacity .6s ease, transform .6s ease;
}
.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}
.reveal-delay-1 { transition-delay: .1s; }
.reveal-delay-2 { transition-delay: .2s; }
.reveal-delay-3 { transition-delay: .3s; }
.reveal-delay-4 { transition-delay: .4s; }
.reveal-delay-5 { transition-delay: .5s; }

/* ── Responsive ────────────────────────────────────────────────── */
@media (max-width: 1024px) {
  .values-grid { grid-template-columns: repeat(3, 1fr); }
  .footer__grid { grid-template-columns: 1fr 1fr; gap: 2rem; }
}

@media (max-width: 768px) {
  .nav__links { display: none; }
  .nav__burger { display: flex; }
  .nav { background: rgba(255,255,255,.97); backdrop-filter: blur(12px); }

  .hero__inner { grid-template-columns: 1fr; }
  .hero__visual { display: none; }

  .stats { grid-template-columns: 1fr; }
  .values-grid { grid-template-columns: repeat(2, 1fr); }
  .publics-grid { grid-template-columns: 1fr; }
  .risks-grid { grid-template-columns: 1fr; }
  .form-row { grid-template-columns: 1fr; }
  .footer__grid { grid-template-columns: 1fr; }
  .footer__bottom { flex-direction: column; text-align: center; }

  .event-card { grid-template-columns: auto 1fr; }
  .event-card > :last-child { display: none; }
}

@media (max-width: 480px) {
  .values-grid { grid-template-columns: 1fr; }
  .hero__actions { flex-direction: column; }
  .hero__actions .btn { width: 100%; justify-content: center; }
}