/* ============ Izanhia — Design System « Ciel étoilé » ============ */
/* bleu nuit · blanc · or */

:root {
  --night-0: #04081a;
  --night-1: #060b1c;
  --night-2: #0a1128;
  --night-3: #0e1735;
  --panel: #0b132c;
  --ink: #f6f7fb;
  --muted: #a9b3cd;
  --muted-2: #7a86a6;
  --gold: #d6b25e;
  --gold-bright: #f0d391;
  --gold-deep: #b6913f;
  --line: rgba(214, 178, 94, .16);
  --line-soft: rgba(170, 182, 214, .12);
  --serif: "Cormorant Garamond", Georgia, "Times New Roman", serif;
  --sans: "Outfit", "Segoe UI", system-ui, sans-serif;
  --wrap: 1180px;
  --r: 14px;
}

* { margin: 0; padding: 0; box-sizing: border-box; }

html { scroll-behavior: smooth; }
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } }

body {
  background: var(--night-1);
  color: var(--ink);
  font-family: var(--sans);
  font-weight: 300;
  font-size: 1.05rem;
  line-height: 1.75;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

::selection { background: rgba(214, 178, 94, .35); color: #fff; }

.wrap { max-width: var(--wrap); margin: 0 auto; padding: 0 28px; }

em { font-family: var(--serif); font-style: italic; color: var(--gold-bright); }

h1, h2, h3 { font-family: var(--serif); font-weight: 600; line-height: 1.12; text-wrap: balance; }

a { color: inherit; text-decoration: none; }

img { max-width: 100%; display: block; }

/* ---------- Kicker / titres ---------- */
.kicker {
  font-size: .74rem;
  font-weight: 500;
  letter-spacing: .22em;
  text-transform: uppercase;
  color: var(--gold);
  margin-bottom: 18px;
}
.kicker::before {
  content: "";
  display: inline-block;
  width: 26px; height: 1px;
  background: var(--gold);
  vertical-align: middle;
  margin-right: 12px;
  opacity: .7;
}

.h2 {
  font-size: clamp(2rem, 3.6vw, 2.9rem);
  margin-bottom: 22px;
}

.sec { padding: 96px 0; position: relative; }
.sec-tight { padding: 72px 0; }

.sec-intro { max-width: 640px; margin-bottom: 56px; }
.sec-intro p { color: var(--muted); }

/* ---------- Boutons ---------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 10px;
  padding: 15px 32px;
  border-radius: 999px;
  font-weight: 500; font-size: .95rem; letter-spacing: .02em;
  cursor: pointer;
  border: 1px solid transparent;
  transition: transform .25s ease, box-shadow .25s ease, background .25s ease, border-color .25s ease;
}
.btn-gold {
  background: linear-gradient(135deg, var(--gold-bright), var(--gold) 55%, var(--gold-deep));
  color: #191104;
  box-shadow: 0 6px 28px -8px rgba(214, 178, 94, .5);
}
.btn-gold:hover { transform: translateY(-2px); box-shadow: 0 12px 34px -8px rgba(214, 178, 94, .55); }
.btn-ghost {
  border-color: var(--line);
  color: var(--gold-bright);
  background: rgba(214, 178, 94, .04);
}
.btn-ghost:hover { border-color: var(--gold); background: rgba(214, 178, 94, .1); transform: translateY(-2px); }
.btn-sm { padding: 10px 22px; font-size: .85rem; }

/* ---------- Navigation ---------- */
.nav {
  position: fixed; top: 0; left: 0; right: 0; z-index: 50;
  background: rgba(5, 9, 24, .82);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--line-soft);
}
.nav-inner {
  max-width: var(--wrap); margin: 0 auto; padding: 0 28px;
  height: 72px;
  display: flex; align-items: center; justify-content: space-between; gap: 24px;
}
.brand {
  display: inline-flex; align-items: center; gap: 10px;
  font-family: var(--serif); font-size: 1.5rem; font-weight: 600; letter-spacing: .04em;
  color: var(--ink);
}
.brand svg { color: var(--gold); flex: none; }
.menu { display: flex; align-items: center; gap: 34px; }
.menu a {
  font-size: .8rem; font-weight: 500; letter-spacing: .12em; text-transform: uppercase;
  color: var(--muted);
  padding: 6px 0;
  border-bottom: 1px solid transparent;
  transition: color .2s ease;
}
.menu a:hover { color: var(--ink); }
.menu a.active { color: var(--gold-bright); border-bottom-color: var(--gold); }
.nav-cta { flex: none; }

#burger {
  display: none;
  background: none; border: 1px solid var(--line); border-radius: 8px;
  width: 44px; height: 44px;
  color: var(--gold-bright); font-size: 1.2rem; cursor: pointer;
}

/* ---------- Hero (accueil) ---------- */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex; align-items: center;
  background: var(--night-1) url("../img/hero.jpg") center / cover no-repeat;
  overflow: hidden;
}
.hero::before {
  content: "";
  position: absolute; inset: 0;
  background:
    linear-gradient(100deg, rgba(4, 8, 22, .88) 0%, rgba(4, 8, 22, .55) 46%, rgba(4, 8, 22, .18) 100%),
    linear-gradient(to top, var(--night-1) 2%, rgba(6, 11, 28, 0) 30%);
}
#stars { position: absolute; inset: 0; width: 100%; height: 100%; z-index: 1; }
.hero-inner {
  position: relative; z-index: 2;
  max-width: var(--wrap);
  margin: 0 auto; padding: 140px 28px 90px;
  width: 100%;
}
.hero h1 {
  font-size: clamp(2.7rem, 6vw, 4.5rem);
  font-weight: 600;
  max-width: 13em;
  margin-bottom: 26px;
}
.lede {
  color: var(--muted);
  font-size: 1.12rem;
  max-width: 590px;
  margin-bottom: 38px;
}
.hero-cta { display: flex; flex-wrap: wrap; gap: 16px; margin-bottom: 44px; }
.hero-note {
  font-size: .82rem; letter-spacing: .05em;
  color: var(--muted-2);
  border-top: 1px solid var(--line-soft);
  padding-top: 20px;
  max-width: 590px;
}

/* ---------- Hero pages secondaires ---------- */
.page-hero {
  position: relative;
  background: var(--night-1) url("../img/hero.jpg") center top / cover no-repeat;
  padding: 190px 0 90px;
}
.page-hero::before {
  content: "";
  position: absolute; inset: 0;
  background: linear-gradient(180deg, rgba(4, 8, 22, .78), rgba(6, 11, 28, .92) 70%, var(--night-1));
}
.page-hero .wrap { position: relative; z-index: 2; }
.page-hero h1 { font-size: clamp(2.4rem, 4.6vw, 3.6rem); max-width: 15em; }
.page-hero .lede { margin-bottom: 0; }

/* ---------- Le principe : 2 colonnes éditoriales ---------- */
.split { display: grid; grid-template-columns: 1.15fr .85fr; gap: 64px; align-items: center; }
.split-text p { color: var(--muted); margin-bottom: 18px; }
.split-text p strong { color: var(--ink); font-weight: 500; }

.install-card {
  background: linear-gradient(160deg, var(--panel), var(--night-2));
  border: 1px solid var(--line);
  border-radius: var(--r);
  padding: 38px 36px;
  box-shadow: 0 30px 60px -30px rgba(0, 0, 0, .6);
}
.install-card h3 { font-size: 1.5rem; margin-bottom: 8px; }
.install-card > p { color: var(--muted-2); font-size: .88rem; margin-bottom: 24px; }
.install-list { list-style: none; display: grid; gap: 14px; }
.install-list li {
  display: flex; align-items: baseline; gap: 14px;
  font-size: 1rem; color: var(--ink); font-weight: 400;
}
.install-list svg { color: var(--gold); flex: none; transform: translateY(2px); }
.install-foot {
  margin-top: 26px; padding-top: 18px;
  border-top: 1px solid var(--line-soft);
  font-size: .85rem; color: var(--muted-2);
}
.install-foot strong { color: var(--gold-bright); font-weight: 500; }

/* ---------- Ce que fait Izanhia : 6 items ---------- */
.capa-grid {
  display: grid; grid-template-columns: repeat(2, 1fr);
  gap: 0 64px;
  counter-reset: capa;
}
.capa {
  padding: 34px 0;
  border-top: 1px solid var(--line-soft);
}
.capa .num {
  font-family: var(--serif); font-style: italic;
  font-size: 1rem; color: var(--gold);
  letter-spacing: .08em;
  display: block; margin-bottom: 12px;
}
.capa h3 { font-size: 1.55rem; margin-bottom: 10px; }
.capa p { color: var(--muted); font-size: 1rem; }

/* ---------- Comparaison ---------- */
.duel { overflow-x: auto; }
.duel table {
  width: 100%; border-collapse: collapse;
  min-width: 640px;
}
.duel th, .duel td {
  text-align: left;
  padding: 20px 26px;
  border-bottom: 1px solid var(--line-soft);
  vertical-align: top;
}
.duel thead th {
  font-family: var(--serif); font-size: 1.4rem; font-weight: 600;
  border-bottom: 1px solid var(--line);
  padding-top: 8px;
}
.duel thead th:first-child { font-family: var(--sans); font-size: .78rem; letter-spacing: .16em; text-transform: uppercase; color: var(--muted-2); font-weight: 500; }
.duel .col-iz { color: var(--gold-bright); }
.duel .col-cb { color: var(--muted); }
.duel td:first-child { color: var(--muted); font-size: .92rem; width: 26%; }
.duel td { font-size: .98rem; }
.duel td.iz { color: var(--ink); }
.duel td.cb { color: var(--muted-2); }
.duel td.iz::before { content: "✦ "; color: var(--gold); font-size: .8em; }
.duel td.cb::before { content: "— "; color: var(--muted-2); }
.duel-verdict {
  text-align: center;
  font-family: var(--serif); font-size: clamp(1.5rem, 3vw, 2.1rem);
  margin-top: 54px;
}

/* ---------- Étapes ---------- */
.steps { display: grid; grid-template-columns: repeat(3, 1fr); gap: 40px; }
.step { position: relative; padding-top: 26px; }
.step::before {
  content: "";
  position: absolute; top: 0; left: 0; right: 0;
  height: 1px; background: var(--line);
}
.step-n {
  font-family: var(--serif); font-style: italic;
  font-size: 3.4rem; line-height: 1;
  color: transparent;
  -webkit-text-stroke: 1px var(--gold);
  display: block; margin-bottom: 16px;
}
.step h3 { font-size: 1.45rem; margin-bottom: 10px; }
.step p { color: var(--muted); font-size: .98rem; }

/* ---------- Bande cloud ---------- */
.cloud-band {
  background: linear-gradient(160deg, var(--night-2), var(--night-1));
  border-top: 1px solid var(--line-soft);
  border-bottom: 1px solid var(--line-soft);
}
.cloud-split { display: grid; grid-template-columns: 1fr 1fr; gap: 60px; align-items: center; }
.cloud-range {
  font-family: var(--serif); font-weight: 600;
  font-size: clamp(2.6rem, 5vw, 4rem);
  color: var(--gold-bright);
  line-height: 1.15;
}
.cloud-range small {
  display: block;
  font-family: var(--sans); font-weight: 400; font-size: .95rem;
  color: var(--muted); margin-top: 10px;
  letter-spacing: .03em;
}
.cloud-split p { color: var(--muted); }

/* ---------- CTA final ---------- */
.cta-band {
  position: relative;
  text-align: center;
  padding: 110px 0;
  background: var(--night-0);
  border-top: 1px solid var(--line-soft);
  overflow: hidden;
}
.cta-band::before {
  content: "";
  position: absolute; inset: 0;
  background: radial-gradient(60% 120% at 50% 110%, rgba(214, 178, 94, .12), transparent 60%);
}
.cta-band h2 { position: relative; font-size: clamp(2.1rem, 4vw, 3.2rem); margin-bottom: 16px; }
.cta-band p { position: relative; color: var(--muted); max-width: 560px; margin: 0 auto 36px; }
.cta-band .btn { position: relative; }

/* ---------- Tarifs ---------- */
.plans { display: grid; grid-template-columns: repeat(3, 1fr); gap: 26px; align-items: stretch; }
.plan {
  position: relative;
  display: flex; flex-direction: column;
  background: linear-gradient(170deg, var(--panel), var(--night-2) 70%);
  border: 1px solid var(--line-soft);
  border-radius: var(--r);
  padding: 40px 34px 34px;
  transition: transform .3s ease, border-color .3s ease;
}
.plan:hover { transform: translateY(-4px); border-color: var(--line); }
.plan.featured {
  border-color: var(--gold);
  background: linear-gradient(170deg, #101a3d, var(--night-2) 75%);
  box-shadow: 0 30px 70px -30px rgba(214, 178, 94, .25);
}
.plan-badge {
  position: absolute; top: -13px; left: 50%; transform: translateX(-50%);
  background: linear-gradient(135deg, var(--gold-bright), var(--gold-deep));
  color: #191104;
  font-size: .7rem; font-weight: 600; letter-spacing: .16em; text-transform: uppercase;
  padding: 5px 16px; border-radius: 999px;
}
.plan h3 { font-size: 1.7rem; margin-bottom: 4px; }
.plan .tag { color: var(--muted-2); font-size: .9rem; margin-bottom: 26px; }
.plan .price { font-family: var(--serif); font-size: 2.1rem; font-weight: 600; color: var(--gold-bright); }
.plan .price small { font-family: var(--sans); font-size: .82rem; color: var(--muted-2); font-weight: 400; display: block; margin-top: 2px; }
.plan .storage {
  margin: 22px 0 18px; padding: 12px 0;
  border-top: 1px solid var(--line-soft); border-bottom: 1px solid var(--line-soft);
  text-align: center; font-size: .88rem; letter-spacing: .06em;
  color: var(--muted);
}
.plan .storage strong { color: var(--gold-bright); font-weight: 500; }
.plan ul { list-style: none; display: grid; gap: 12px; margin-bottom: 30px; flex: 1; }
.plan li { display: flex; gap: 12px; align-items: baseline; font-size: .94rem; color: var(--muted); }
.plan li svg { color: var(--gold); flex: none; transform: translateY(2px); }
.plans-note { text-align: center; color: var(--muted-2); font-size: .9rem; margin-top: 34px; }
.plans-note a { color: var(--gold-bright); border-bottom: 1px solid var(--line); }

/* ---------- FAQ ---------- */
.faq { max-width: 760px; margin: 0 auto; }
.faq details {
  border-bottom: 1px solid var(--line-soft);
  padding: 22px 4px;
}
.faq summary {
  cursor: pointer; list-style: none;
  font-family: var(--serif); font-size: 1.3rem; font-weight: 600;
  display: flex; justify-content: space-between; align-items: center; gap: 20px;
}
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after { content: "+"; color: var(--gold); font-size: 1.4rem; transition: transform .25s ease; }
.faq details[open] summary::after { transform: rotate(45deg); }
.faq details p { color: var(--muted); margin-top: 14px; max-width: 620px; }

/* ---------- Partenaires ---------- */
.partner-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 26px; }
.partner-panel {
  position: relative;
  background: linear-gradient(165deg, var(--panel), var(--night-2));
  border: 1px solid var(--line-soft);
  border-radius: var(--r);
  padding: 46px 42px;
  display: flex; flex-direction: column;
  transition: border-color .3s ease, transform .3s ease;
}
.partner-panel:hover { border-color: var(--line); transform: translateY(-4px); }
.partner-panel .choice {
  font-size: .72rem; font-weight: 600; letter-spacing: .2em; text-transform: uppercase;
  color: var(--gold);
  margin-bottom: 18px;
}
.partner-panel h3 { font-size: 1.9rem; margin-bottom: 12px; }
.partner-panel > p { color: var(--muted); margin-bottom: 26px; }
.partner-panel ul { list-style: none; display: grid; gap: 12px; margin-bottom: 34px; }
.partner-panel li { display: flex; gap: 12px; align-items: baseline; color: var(--muted); font-size: .96rem; }
.partner-panel li svg { color: var(--gold); flex: none; transform: translateY(2px); }
.partner-panel .btn { margin-top: auto; align-self: flex-start; }
.partner-cta-line { text-align: center; color: var(--muted-2); font-size: .92rem; margin-top: 34px; }

/* ---------- Contact ---------- */
.contact-split { display: grid; grid-template-columns: .85fr 1.15fr; gap: 60px; align-items: start; }
.contact-info .line { border-top: 1px solid var(--line-soft); padding: 22px 0; }
.contact-info .line h4 { font-size: .74rem; letter-spacing: .18em; text-transform: uppercase; color: var(--muted-2); font-weight: 500; margin-bottom: 8px; }
.contact-info .line a, .contact-info .line p { font-family: var(--serif); font-size: 1.3rem; color: var(--ink); }
.contact-info .line a:hover { color: var(--gold-bright); }
.contact-info .line small { display: block; font-family: var(--sans); font-size: .85rem; color: var(--muted-2); margin-top: 4px; }

.form-card {
  background: linear-gradient(170deg, var(--panel), var(--night-2));
  border: 1px solid var(--line);
  border-radius: var(--r);
  padding: 44px 42px;
}
.form-card h3 { font-size: 1.6rem; margin-bottom: 28px; }
.field { margin-bottom: 22px; }
.field label { display: block; font-size: .78rem; letter-spacing: .14em; text-transform: uppercase; color: var(--muted-2); font-weight: 500; margin-bottom: 10px; }
.field input, .field select, .field textarea {
  width: 100%;
  background: rgba(4, 8, 22, .55);
  border: 1px solid var(--line-soft);
  border-radius: 10px;
  color: var(--ink);
  font-family: var(--sans); font-size: 1rem; font-weight: 300;
  padding: 14px 16px;
  transition: border-color .2s ease;
}
.field input:focus, .field select:focus, .field textarea:focus {
  outline: none; border-color: var(--gold);
}
.field textarea { min-height: 140px; resize: vertical; }
.field select { appearance: none; background-image: linear-gradient(45deg, transparent 50%, var(--gold) 50%), linear-gradient(135deg, var(--gold) 50%, transparent 50%); background-position: calc(100% - 22px) 55%, calc(100% - 17px) 55%; background-size: 5px 5px; background-repeat: no-repeat; }
.field-row { display: grid; grid-template-columns: 1fr 1fr; gap: 22px; }
.form-note { font-size: .82rem; color: var(--muted-2); margin-top: 18px; }
.required { color: var(--gold); }

/* ---------- Footer ---------- */
footer {
  border-top: 1px solid var(--line-soft);
  background: var(--night-0);
  padding: 70px 0 36px;
}
.foot-grid { display: grid; grid-template-columns: 1.4fr 1fr 1fr; gap: 50px; margin-bottom: 54px; }
.foot-brand p { color: var(--muted-2); font-size: .92rem; margin-top: 14px; max-width: 320px; }
.foot-col h4 { font-size: .74rem; letter-spacing: .18em; text-transform: uppercase; color: var(--muted-2); font-weight: 500; margin-bottom: 18px; }
.foot-col a { display: block; color: var(--muted); font-size: .94rem; padding: 5px 0; transition: color .2s ease; }
.foot-col a:hover { color: var(--gold-bright); }
.foot-bottom {
  border-top: 1px solid var(--line-soft);
  padding-top: 26px;
  display: flex; justify-content: space-between; align-items: center; gap: 20px; flex-wrap: wrap;
  color: var(--muted-2); font-size: .82rem;
}
.foot-bottom .sep { opacity: .4; margin: 0 8px; }

/* ---------- Actualités : timeline éditoriale ---------- */
.actu-timeline { max-width: 880px; margin: 0 auto; position: relative; }
.actu-timeline::before {
  content: "";
  position: absolute; top: 0; bottom: 0; left: 209px;
  width: 1px;
  background: linear-gradient(to bottom, transparent, var(--line) 6%, var(--line) 94%, transparent);
}
.actu {
  display: grid;
  grid-template-columns: 240px 1fr;
  gap: 0 56px;
  padding: 44px 0;
}
.actu + .actu { border-top: 1px solid var(--line-soft); }
.actu-date {
  font-size: .78rem; font-weight: 500; letter-spacing: .14em; text-transform: uppercase;
  color: var(--gold);
  position: relative;
  padding-top: 8px;
  text-align: right;
}
.actu-date::after {
  content: "";
  position: absolute; top: 12px; left: calc(100% + 27px);
  width: 9px; height: 9px;
  background: var(--night-1);
  border: 1px solid var(--gold);
  border-radius: 50%;
  transform: rotate(45deg);
}
.actu-media {
  display: block;
  border-radius: var(--r);
  overflow: hidden;
  border: 1px solid var(--line-soft);
  margin-bottom: 20px;
  grid-column: 2;
  aspect-ratio: 16 / 7.5;
}
.actu-media img {
  width: 100%; height: 100%;
  object-fit: cover;
  transition: transform .5s ease;
}
.actu-media:hover img { transform: scale(1.04); }
.actu-body { grid-column: 2; }
.actu h2 { font-size: clamp(1.5rem, 2.6vw, 2.05rem); margin-bottom: 14px; }
.actu h2 a { transition: color .2s ease; }
.actu h2 a:hover { color: var(--gold-bright); }
.actu-chapo {
  color: var(--ink);
  font-weight: 400;
  margin-bottom: 14px;
}
.actu-body > p:not(.actu-date):not(.actu-chapo):not(.actu-src) { color: var(--muted); margin-bottom: 14px; }
.actu-src {
  font-size: .78rem; color: var(--muted-2); letter-spacing: .03em;
  border-top: 1px solid var(--line-soft);
  padding-top: 12px;
}

@media (max-width: 900px) {
  .actu { grid-template-columns: 1fr; gap: 0; padding: 34px 0; }
  .actu-timeline::before { display: none; }
  .actu-date { text-align: left; margin-bottom: 14px; padding-top: 0; }
  .actu-date::after { display: none; }
  .actu-media, .actu-body { grid-column: 1; }
  .actu-media { aspect-ratio: 16 / 9; }
}

/* ---------- Reveal on scroll ---------- */
.reveal { opacity: 0; transform: translateY(22px); transition: opacity .8s ease, transform .8s ease; }
.reveal.in { opacity: 1; transform: none; }
.reveal-d1 { transition-delay: .12s; }
.reveal-d2 { transition-delay: .24s; }
@media (prefers-reduced-motion: reduce) {
  .reveal { opacity: 1; transform: none; transition: none; }
}

/* ---------- Responsive ---------- */
@media (max-width: 1024px) {
  .split, .cloud-split, .contact-split { grid-template-columns: 1fr; gap: 44px; }
  .plans { grid-template-columns: 1fr; max-width: 520px; margin: 0 auto; }
  .partner-grid { grid-template-columns: 1fr; }
  .steps { grid-template-columns: 1fr; gap: 30px; }
  .capa-grid { grid-template-columns: 1fr; gap: 0 40px; }
}

@media (max-width: 760px) {
  .sec { padding: 68px 0; }
  .menu {
    position: fixed; top: 72px; right: 0;
    flex-direction: column; align-items: flex-start;
    background: rgba(5, 9, 24, .97);
    border-left: 1px solid var(--line-soft);
    padding: 28px 34px; gap: 20px;
    min-width: 240px;
    transform: translateX(100%);
    transition: transform .3s ease;
  }
  .menu.open { transform: none; }
  #burger { display: block; }
  .nav-cta { display: none; }
  .field-row { grid-template-columns: 1fr; }
  .foot-grid { grid-template-columns: 1fr; gap: 34px; }
  .hero-inner { padding-top: 120px; }
  .form-card { padding: 30px 24px; }
  .partner-panel { padding: 32px 26px; }
}