/* ═══════════════════════════════════════════════
   Vital Heels Dance — feuille de style
   Palette issue du logo : corail → rose → violet
   ═══════════════════════════════════════════════ */

:root {
  --coral:      #fd5757;
  --pink:       #c555ab;
  --purple:     #8c52fe;
  --magenta:    #e5147f;
  --lavender:   #c89bf0;

  --ink:        #191325;
  --ink-soft:   #4b4360;
  --ink-faint:  #7a7290;
  --paper:      #ffffff;
  --paper-alt:  #faf6ff;
  --line:       #ece5f7;

  --gradient:   linear-gradient(115deg, var(--coral) 0%, var(--pink) 50%, var(--purple) 100%);

  --radius:     18px;
  --radius-lg:  26px;
  --shadow-sm:  0 2px 10px rgba(25, 19, 37, .06);
  --shadow:     0 14px 40px -18px rgba(90, 40, 140, .35);
  --shadow-lg:  0 30px 70px -30px rgba(90, 40, 140, .45);

  --wrap:       1140px;
  --header-h:   72px;
}

*, *::before, *::after { box-sizing: border-box; }

html {
  scroll-behavior: smooth;
  scroll-padding-top: calc(var(--header-h) + 16px);
  -webkit-text-size-adjust: 100%;
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation-duration: .001ms !important; transition-duration: .001ms !important; }
}

body {
  margin: 0;
  font-family: 'Poppins', 'Segoe UI', system-ui, -apple-system, sans-serif;
  font-size: 17px;
  line-height: 1.65;
  color: var(--ink);
  background: var(--paper);
  overflow-x: hidden;
}

img { max-width: 100%; height: auto; display: block; }
a { color: inherit; }

h1, h2, h3 {
  font-weight: 800;
  line-height: 1.12;
  letter-spacing: -.02em;
  margin: 0 0 .5em;
}
h1 { font-size: clamp(2.1rem, 5.4vw, 3.6rem); }
h2 { font-size: clamp(1.7rem, 3.8vw, 2.7rem); }
h3 { font-size: 1.12rem; font-weight: 700; letter-spacing: -.01em; }

h1 em, h2 em {
  font-style: normal;
  background: var(--gradient);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

p { margin: 0 0 1.1em; }

.skip-link {
  position: absolute; left: -9999px; top: 0; z-index: 100;
  background: var(--ink); color: #fff; padding: 10px 18px; border-radius: 0 0 12px 0;
}
.skip-link:focus { left: 0; }

:focus-visible { outline: 3px solid var(--purple); outline-offset: 3px; border-radius: 6px; }

.wrap { width: min(100% - 40px, var(--wrap)); margin-inline: auto; }
.wrap.narrow { width: min(100% - 40px, 780px); }
.center { text-align: center; }

.eyebrow {
  font-size: .78rem;
  font-weight: 700;
  letter-spacing: .16em;
  text-transform: uppercase;
  color: var(--magenta);
  margin: 0 0 .9em;
}

.section { padding: clamp(64px, 9vw, 110px) 0; }
.section-alt { background: var(--paper-alt); }
.section-lead {
  font-size: 1.09rem;
  color: var(--ink-soft);
  max-width: 62ch;
}
.center .section-lead { margin-inline: auto; }
.muted { color: var(--ink-faint); }

/* ─────────── En-tête ─────────── */

.site-header {
  position: sticky; top: 0; z-index: 50;
  height: var(--header-h);
  display: flex; align-items: center; gap: 16px;
  padding-inline: clamp(20px, 4vw, 40px);
  background: rgba(255, 255, 255, .88);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--line);
}

.brand {
  display: flex; align-items: center; gap: 11px;
  font-weight: 800; letter-spacing: -.01em; font-size: 1.02rem;
  text-decoration: none; margin-right: auto;
}
.brand img { border-radius: 11px; box-shadow: var(--shadow-sm); }

.site-nav { display: flex; align-items: center; gap: 6px; }
.site-nav a {
  text-decoration: none;
  font-size: .93rem; font-weight: 600;
  color: var(--ink-soft);
  padding: 9px 13px; border-radius: 10px;
  transition: color .18s, background .18s;
}
.site-nav a:hover { color: var(--ink); background: var(--paper-alt); }

.nav-cta {
  background: var(--gradient) !important;
  color: #fff !important;
  padding: 10px 20px !important;
  border-radius: 999px !important;
  box-shadow: var(--shadow);
}
.nav-cta:hover { filter: brightness(1.06); }

.nav-toggle { position: absolute; opacity: 0; pointer-events: none; }
.nav-burger { display: none; }

/* ─────────── Hero ─────────── */

.hero { position: relative; overflow: hidden; padding: clamp(52px, 8vw, 96px) 0 clamp(60px, 9vw, 108px); }

.hero-glow {
  position: absolute; inset: -30% -20% auto -20%; height: 620px;
  background:
    radial-gradient(46% 58% at 18% 34%, rgba(253, 87, 87, .30), transparent 68%),
    radial-gradient(46% 58% at 78% 22%, rgba(140, 82, 254, .30), transparent 68%),
    radial-gradient(38% 46% at 50% 66%, rgba(197, 85, 171, .22), transparent 70%);
  filter: blur(12px);
  pointer-events: none;
}

.hero-inner {
  position: relative;
  width: min(100% - 40px, var(--wrap));
  margin-inline: auto;
  display: grid;
  grid-template-columns: 1.25fr .85fr;
  gap: clamp(32px, 5vw, 68px);
  align-items: center;
}

.hero h1 { margin-bottom: .38em; }

.lead {
  font-size: clamp(1.02rem, 1.5vw, 1.16rem);
  color: var(--ink-soft);
  max-width: 56ch;
}
.lead strong { color: var(--ink); font-weight: 700; }

.hero-actions { display: flex; flex-wrap: wrap; gap: 12px; margin: 26px 0 34px; }

.btn {
  display: inline-block;
  font-weight: 700; font-size: .96rem;
  text-decoration: none;
  padding: 14px 28px;
  border-radius: 999px;
  transition: transform .18s, box-shadow .18s, filter .18s, background .18s;
}
.btn-primary { background: var(--gradient); color: #fff; box-shadow: var(--shadow); }
.btn-primary:hover { transform: translateY(-2px); filter: brightness(1.06); box-shadow: var(--shadow-lg); }
.btn-ghost { background: #fff; color: var(--ink); border: 1.5px solid var(--line); box-shadow: var(--shadow-sm); }
.btn-ghost:hover { transform: translateY(-2px); border-color: var(--lavender); }

.hero-facts {
  list-style: none; margin: 0; padding: 0;
  display: flex; flex-wrap: wrap; gap: 12px 34px;
  border-top: 1px solid var(--line); padding-top: 24px;
}
.hero-facts li { display: flex; flex-direction: column; }
.hero-facts b { font-size: 1.16rem; font-weight: 800; letter-spacing: -.01em; }
.hero-facts span { font-size: .84rem; color: var(--ink-faint); }

.hero-logo { margin: 0; }
.hero-logo img {
  width: 100%; border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
  transform: rotate(-2deg);
}
.hero-logo figcaption {
  margin-top: 18px; text-align: center;
  font-family: 'Playfair Display', Georgia, serif;
  font-style: italic; font-size: 1.06rem;
  color: var(--ink-soft);
}

/* ─────────── Cartes concept ─────────── */

.cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(228px, 1fr));
  gap: 20px;
  margin-top: 46px;
}
.card {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 28px 24px;
  box-shadow: var(--shadow-sm);
  transition: transform .2s, box-shadow .2s, border-color .2s;
}
.card:hover { transform: translateY(-4px); box-shadow: var(--shadow); border-color: var(--lavender); }
.card-icon { font-size: 1.7rem; display: block; margin-bottom: 14px; }
.card p { margin: 0; font-size: .95rem; color: var(--ink-soft); }

/* ─────────── Blocs en deux colonnes ─────────── */

.split {
  display: grid;
  grid-template-columns: 1.05fr .95fr;
  gap: clamp(34px, 5vw, 66px);
  align-items: start;
}
.split-reverse { margin-top: 46px; }

.poster { margin: 0; }
.poster img {
  width: 100%;
  border-radius: var(--radius);
  box-shadow: var(--shadow-lg);
  transition: transform .25s;
}
.poster a { display: block; }
.poster a:hover img { transform: scale(1.015); }
.poster figcaption {
  margin-top: 12px; text-align: center;
  font-size: .82rem; color: var(--ink-faint);
}

/* ─────────── Liste d'informations ─────────── */

.infos { margin: 30px 0; padding: 0; display: grid; gap: 18px; }
.infos > div {
  display: grid;
  grid-template-columns: 92px 1fr;
  gap: 16px;
  padding-bottom: 18px;
  border-bottom: 1px solid var(--line);
}
.infos > div:last-child { border-bottom: 0; padding-bottom: 0; }
.infos dt {
  font-size: .74rem; font-weight: 700;
  letter-spacing: .12em; text-transform: uppercase;
  color: var(--magenta); padding-top: .35em;
}
.infos dd { margin: 0; font-size: .97rem; color: var(--ink-soft); }
.infos dd strong { color: var(--ink); }

.note {
  background: linear-gradient(135deg, rgba(253, 87, 87, .08), rgba(140, 82, 254, .10));
  border-left: 3px solid var(--purple);
  border-radius: 0 12px 12px 0;
  padding: 16px 20px;
  font-size: .95rem;
  color: var(--ink-soft);
  margin-bottom: 26px;
}
.center .note { text-align: left; }

/* ─────────── Agenda ─────────── */

.timeline { list-style: none; margin: 0; padding: 0; display: grid; gap: 18px; }

.timeline > li {
  display: grid;
  grid-template-columns: 88px 1fr;
  gap: 20px;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 24px;
  box-shadow: var(--shadow-sm);
  transition: transform .2s, box-shadow .2s;
}
.timeline > li:hover { transform: translateY(-3px); box-shadow: var(--shadow); }

.date {
  background: var(--gradient);
  color: #fff;
  border-radius: 14px;
  padding: 12px 6px;
  text-align: center;
  align-self: start;
  box-shadow: var(--shadow);
}
.date b { display: block; font-size: 1.85rem; font-weight: 800; line-height: 1; }
.date span { display: block; font-size: .72rem; font-weight: 600; opacity: .92; margin-top: 5px; }

.event h3 { margin-bottom: .25em; }
.event p { margin: 0 0 .5em; font-size: .95rem; color: var(--ink-soft); }
.event p:last-child { margin-bottom: 0; }
.when { font-weight: 700; color: var(--magenta) !important; font-size: .86rem !important; }
.where { font-size: .86rem !important; color: var(--ink-faint) !important; }
.sub { margin: 0 0 .6em; padding-left: 20px; font-size: .95rem; color: var(--ink-soft); }
.sub li { margin-bottom: .25em; }

/* ─────────── Contact ─────────── */

.contact { background: var(--paper-alt); }

.contact-cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 18px;
  margin-top: 40px;
  width: min(100%, 900px);
  margin-inline: auto;
}
.contact-card {
  display: flex; flex-direction: column; align-items: center; gap: 5px;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 30px 20px;
  text-decoration: none;
  box-shadow: var(--shadow-sm);
  transition: transform .2s, box-shadow .2s, border-color .2s;
}
a.contact-card:hover { transform: translateY(-4px); box-shadow: var(--shadow); border-color: var(--lavender); }
.contact-icon { font-size: 1.6rem; margin-bottom: 8px; }
.contact-card b { font-size: .95rem; letter-spacing: -.01em; overflow-wrap: anywhere; }
.contact-card > span:last-child { font-size: .83rem; color: var(--ink-faint); }

/* ─────────── Pied de page ─────────── */

.site-footer {
  background: var(--ink);
  color: #fff;
  padding: 54px 0 34px;
}
.footer-inner { display: grid; gap: 26px; justify-items: center; text-align: center; }

.footer-brand { display: flex; align-items: center; gap: 14px; text-align: left; }
.footer-brand img { border-radius: 13px; }
.footer-brand b { display: block; font-size: 1.05rem; }
.footer-brand span {
  font-family: 'Playfair Display', Georgia, serif;
  font-style: italic; font-size: .9rem;
  color: rgba(255, 255, 255, .62);
}

.footer-nav { display: flex; flex-wrap: wrap; justify-content: center; gap: 6px 22px; }
.footer-nav a {
  color: rgba(255, 255, 255, .72);
  text-decoration: none; font-size: .92rem; font-weight: 600;
  transition: color .18s;
}
.footer-nav a:hover { color: #fff; }

.footer-legal {
  margin: 0;
  font-size: .82rem;
  color: rgba(255, 255, 255, .45);
  border-top: 1px solid rgba(255, 255, 255, .12);
  padding-top: 24px;
  width: 100%;
}
.footer-legal a { color: var(--lavender); text-decoration: none; }
.footer-legal a:hover { text-decoration: underline; }

/* ═══════════ Responsive ═══════════ */

@media (max-width: 940px) {
  .hero-inner { grid-template-columns: 1fr; }
  .hero-logo { max-width: 380px; margin-inline: auto; order: -1; }
  .hero-logo img { transform: none; }
  .split, .split-reverse { grid-template-columns: 1fr; }
  .poster { max-width: 520px; margin-inline: auto; }
}

@media (max-width: 760px) {
  .nav-burger {
    display: flex; flex-direction: column; justify-content: center; gap: 5px;
    width: 42px; height: 42px; padding: 10px;
    border-radius: 11px; border: 1px solid var(--line);
    background: #fff; cursor: pointer;
  }
  .nav-burger span {
    display: block; height: 2px; width: 100%;
    background: var(--ink); border-radius: 2px;
    transition: transform .22s, opacity .22s;
  }

  .site-nav {
    position: fixed;
    inset: var(--header-h) 0 auto 0;
    flex-direction: column;
    align-items: stretch;
    gap: 2px;
    padding: 14px 20px 22px;
    background: rgba(255, 255, 255, .97);
    backdrop-filter: blur(14px);
    -webkit-backdrop-filter: blur(14px);
    border-bottom: 1px solid var(--line);
    box-shadow: var(--shadow);
    transform: translateY(-125%);
    transition: transform .26s ease;
  }
  .nav-toggle:checked ~ .site-nav { transform: translateY(0); }
  .nav-toggle:checked ~ .nav-burger span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
  .nav-toggle:checked ~ .nav-burger span:nth-child(2) { opacity: 0; }
  .nav-toggle:checked ~ .nav-burger span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

  .site-nav a { padding: 13px 14px; font-size: 1rem; }
  .nav-cta { text-align: center; margin-top: 8px; }

  body { font-size: 16px; }
  .hero-facts { gap: 12px 24px; }
  .infos > div { grid-template-columns: 1fr; gap: 4px; }
  .timeline > li { grid-template-columns: 1fr; gap: 14px; padding: 22px; }
  .date { display: flex; align-items: baseline; gap: 8px; justify-content: center; padding: 9px 14px; justify-self: start; }
  .date b { font-size: 1.3rem; }
  .date span { margin-top: 0; }
}

/* ═══════════ Impression ═══════════ */

@media print {
  .site-header, .hero-glow, .hero-actions, .btn { display: none !important; }
  body { font-size: 12pt; }
  .section { padding: 18px 0; }
  .poster { max-width: 300px; }
}