/* SkyVault. Site premium (lumineux, animé) */
:root {
  color-scheme: dark light;
  --bg-deep: #0c1424;
  --bg: #111c32;
  --bg-soft: #162240;
  --surface: rgba(255, 255, 255, 0.06);
  --surface-2: rgba(255, 255, 255, 0.09);
  --glass: rgba(22, 34, 64, 0.55);
  --text: #f1f5fb;
  --text-muted: #b8c5dc;
  --text-dim: #7b8ba8;
  --accent: #4d88ff;
  --accent-2: #6ea3ff;
  --accent-glow: rgba(77, 136, 255, 0.45);
  --violet: #a78bfa;
  --border: rgba(110, 163, 255, 0.35);
  --border-soft: rgba(255, 255, 255, 0.1);
  --gradient: linear-gradient(135deg, #4d88ff 0%, #8b5cf6 45%, #38bdf8 100%);
  --gradient-soft: linear-gradient(135deg, rgba(77, 136, 255, 0.15), rgba(139, 92, 246, 0.12));
  --radius: 18px;
  --radius-lg: 26px;
  --shadow: 0 20px 60px rgba(8, 15, 35, 0.45);
  --shadow-glow: 0 0 60px rgba(77, 136, 255, 0.2);
  --max: 1140px;
  --content: 780px;
  --ease: cubic-bezier(0.22, 1, 0.36, 1);
}

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

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-height: 100vh;
  font-family: "Inter", system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  background: linear-gradient(165deg, #0e1830 0%, #132040 40%, #0f1a33 100%);
  color: var(--text);
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

/* ── Orbes animés ── */
.bg-orbs {
  position: fixed;
  inset: 0;
  overflow: hidden;
  pointer-events: none;
  z-index: 0;
}

.orb {
  position: absolute;
  border-radius: 50%;
  filter: blur(80px);
  opacity: 0.55;
  animation: float-orb 18s var(--ease) infinite;
}

.orb-a {
  width: 520px;
  height: 520px;
  top: -12%;
  left: -8%;
  background: radial-gradient(circle, rgba(77, 136, 255, 0.55), transparent 70%);
}

.orb-b {
  width: 420px;
  height: 420px;
  top: 35%;
  right: -10%;
  background: radial-gradient(circle, rgba(167, 139, 250, 0.4), transparent 70%);
  animation-delay: -6s;
  animation-duration: 22s;
}

.orb-c {
  width: 360px;
  height: 360px;
  bottom: -5%;
  left: 30%;
  background: radial-gradient(circle, rgba(56, 189, 248, 0.35), transparent 70%);
  animation-delay: -12s;
  animation-duration: 20s;
}

@keyframes float-orb {
  0%, 100% { transform: translate(0, 0) scale(1); }
  33% { transform: translate(30px, -25px) scale(1.05); }
  66% { transform: translate(-20px, 20px) scale(0.95); }
}

/* ── Révélations au scroll ── */
.reveal {
  opacity: 0;
  transform: translateY(28px);
  transition: opacity 0.7s var(--ease), transform 0.7s var(--ease);
}

.reveal.is-visible {
  opacity: 1;
  transform: translateY(0);
}

.reveal-delay-1 { transition-delay: 0.08s; }
.reveal-delay-2 { transition-delay: 0.16s; }
.reveal-delay-3 { transition-delay: 0.24s; }
.reveal-delay-4 { transition-delay: 0.32s; }
.reveal-delay-5 { transition-delay: 0.4s; }

@media (prefers-reduced-motion: reduce) {
  .orb { animation: none; }
  .reveal { opacity: 1; transform: none; transition: none; }
  .hero__logo { animation: none; }
  .hero__badge { animation: none; }
}

a {
  color: var(--accent-2);
  text-decoration: none;
  transition: color 0.2s;
}

a:hover {
  color: #a8c8ff;
}

img {
  max-width: 100%;
  height: auto;
}

.container {
  width: min(var(--max), calc(100% - 2rem));
  margin-inline: auto;
  position: relative;
  z-index: 1;
}

.container--narrow {
  width: min(var(--content), calc(100% - 2rem));
  margin-inline: auto;
  position: relative;
  z-index: 1;
}

/* ── Header ── */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  backdrop-filter: blur(20px) saturate(1.4);
  background: rgba(14, 24, 48, 0.72);
  border-bottom: 1px solid var(--border-soft);
  transition: background 0.3s, box-shadow 0.3s;
}

.site-header.is-scrolled {
  background: rgba(10, 18, 38, 0.92);
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.25);
}

.site-header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 0.9rem 0;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 0.65rem;
  color: var(--text);
  font-weight: 700;
  font-size: 1.08rem;
  letter-spacing: -0.02em;
  transition: transform 0.25s var(--ease);
}

.brand:hover {
  color: var(--text);
  text-decoration: none;
  transform: scale(1.02);
}

.brand__logo {
  width: 38px;
  height: 38px;
  border-radius: 11px;
  box-shadow: 0 4px 24px var(--accent-glow);
  transition: box-shadow 0.3s;
}

.brand:hover .brand__logo {
  box-shadow: 0 6px 32px var(--accent-glow);
}

.brand__dot {
  color: var(--accent-2);
}

.nav-toggle {
  display: none;
  background: var(--surface-2);
  border: 1px solid var(--border-soft);
  color: var(--text);
  border-radius: 10px;
  padding: 0.45rem 0.65rem;
  cursor: pointer;
  font-size: 1.1rem;
}

.site-nav {
  display: flex;
  align-items: center;
  gap: 0.35rem;
}

.site-nav a {
  color: var(--text-muted);
  font-size: 0.9rem;
  font-weight: 500;
  padding: 0.5rem 0.85rem;
  border-radius: 10px;
  transition: background 0.25s, color 0.25s, transform 0.2s;
}

.site-nav a:hover,
.site-nav a.is-active {
  color: #fff;
  background: rgba(77, 136, 255, 0.18);
  text-decoration: none;
  transform: translateY(-1px);
}

/* ── Hero ── */
.hero {
  padding: 5rem 0 4rem;
  text-align: center;
}

.hero__badge {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  padding: 0.4rem 1rem;
  border-radius: 999px;
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: #c7dcff;
  background: var(--gradient-soft);
  border: 1px solid var(--border);
  margin-bottom: 1.75rem;
  animation: shimmer 3s ease-in-out infinite;
  position: relative;
  overflow: hidden;
}

.hero__badge::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(105deg, transparent 40%, rgba(255, 255, 255, 0.12) 50%, transparent 60%);
  transform: translateX(-100%);
  animation: badge-shine 4s ease-in-out infinite;
}

@keyframes shimmer {
  0%, 100% { box-shadow: 0 0 20px rgba(77, 136, 255, 0.15); }
  50% { box-shadow: 0 0 32px rgba(139, 92, 246, 0.25); }
}

@keyframes badge-shine {
  0% { transform: translateX(-100%); }
  40%, 100% { transform: translateX(100%); }
}

.hero__logo-wrap {
  position: relative;
  display: inline-block;
  margin-bottom: 1.75rem;
}

.hero__logo-wrap::before {
  content: "";
  position: absolute;
  inset: -20%;
  border-radius: 50%;
  background: radial-gradient(circle, var(--accent-glow), transparent 70%);
  animation: pulse-glow 3s ease-in-out infinite;
}

@keyframes pulse-glow {
  0%, 100% { opacity: 0.5; transform: scale(1); }
  50% { opacity: 0.85; transform: scale(1.08); }
}

.hero__logo {
  position: relative;
  width: 96px;
  height: 96px;
  border-radius: 24px;
  box-shadow: 0 16px 56px var(--accent-glow);
  animation: float-logo 5s var(--ease) infinite;
}

@keyframes float-logo {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-10px); }
}

.hero h1 {
  margin: 0 0 0.85rem;
  font-size: clamp(2.2rem, 5.5vw, 3.5rem);
  font-weight: 800;
  letter-spacing: -0.035em;
  line-height: 1.1;
  background: var(--gradient);
  background-size: 200% auto;
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  animation: gradient-shift 6s ease infinite;
}

@keyframes gradient-shift {
  0%, 100% { background-position: 0% center; }
  50% { background-position: 100% center; }
}

.hero__tagline {
  margin: 0 auto 0.6rem;
  max-width: 34rem;
  font-size: 1.2rem;
  color: var(--text-muted);
  font-weight: 500;
}

.hero__slogan {
  margin: 0 auto 2.25rem;
  font-size: 1rem;
  color: var(--text-dim);
  font-style: italic;
}

.hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.85rem;
  justify-content: center;
}

/* ── Boutons ── */
.btn {
  position: relative;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.45rem;
  padding: 0.78rem 1.5rem;
  border-radius: 14px;
  font-size: 0.94rem;
  font-weight: 600;
  border: none;
  cursor: pointer;
  overflow: hidden;
  transition: transform 0.25s var(--ease), box-shadow 0.3s;
}

.btn:hover {
  transform: translateY(-3px);
  text-decoration: none;
}

.btn--primary {
  color: #fff;
  background: var(--gradient);
  background-size: 200% auto;
  box-shadow: 0 10px 36px var(--accent-glow);
  animation: gradient-shift 6s ease infinite;
}

.btn--primary:hover {
  color: #fff;
  box-shadow: 0 14px 48px var(--accent-glow);
}

.btn--ghost {
  color: var(--text);
  background: var(--glass);
  border: 1px solid var(--border-soft);
  backdrop-filter: blur(12px);
}

.btn--ghost:hover {
  color: #fff;
  border-color: var(--border);
  background: rgba(77, 136, 255, 0.12);
}

/* ── Sections & cartes ── */
.section {
  padding: 4rem 0;
}

.section--alt {
  background: linear-gradient(180deg, transparent, rgba(77, 136, 255, 0.04), transparent);
  border-block: 1px solid var(--border-soft);
}

.section__title {
  margin: 0 0 0.55rem;
  font-size: clamp(1.5rem, 3vw, 1.85rem);
  font-weight: 800;
  letter-spacing: -0.025em;
}

.section__subtitle {
  margin: 0 0 2.25rem;
  color: var(--text-muted);
  max-width: 38rem;
  font-size: 1.02rem;
}

.grid-3 {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(270px, 1fr));
  gap: 1.35rem;
}

.card {
  position: relative;
  padding: 1.6rem;
  border-radius: var(--radius);
  background: var(--glass);
  backdrop-filter: blur(16px);
  border: 1px solid var(--border-soft);
  transition: transform 0.35s var(--ease), border-color 0.3s, box-shadow 0.35s;
  overflow: hidden;
}

.card::before {
  content: "";
  position: absolute;
  inset: 0;
  background: var(--gradient-soft);
  opacity: 0;
  transition: opacity 0.35s;
}

.card:hover {
  transform: translateY(-6px);
  border-color: var(--border);
  box-shadow: var(--shadow), var(--shadow-glow);
}

.card:hover::before {
  opacity: 1;
}

.card > * {
  position: relative;
  z-index: 1;
}

.card__icon {
  width: 48px;
  height: 48px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 14px;
  font-size: 1.35rem;
  margin-bottom: 1.1rem;
  background: rgba(77, 136, 255, 0.15);
  border: 1px solid var(--border);
  transition: transform 0.3s var(--ease);
}

.card:hover .card__icon {
  transform: scale(1.08) rotate(-3deg);
}

.card h3 {
  margin: 0 0 0.55rem;
  font-size: 1.08rem;
  color: #fff;
}

.card p {
  margin: 0;
  font-size: 0.93rem;
  color: var(--text-muted);
  line-height: 1.6;
}

/* ── Pages légales ── */
.page-hero {
  padding: 3.5rem 0 2.25rem;
  border-bottom: 1px solid var(--border-soft);
  margin-bottom: 2.5rem;
}

.page-hero h1 {
  margin: 0 0 0.55rem;
  font-size: clamp(1.85rem, 4vw, 2.5rem);
  font-weight: 800;
  letter-spacing: -0.025em;
  background: var(--gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.page-hero__meta {
  margin: 0;
  color: var(--text-dim);
  font-size: 0.92rem;
}

.prose {
  padding-bottom: 3.5rem;
}

.prose h2 {
  margin: 2.25rem 0 0.7rem;
  font-size: 1.12rem;
  font-weight: 700;
  color: #fff;
}

.prose h2:first-child {
  margin-top: 0;
}

.prose p,
.prose li {
  color: var(--text-muted);
  font-size: 0.96rem;
}

.prose ul,
.prose ol {
  padding-left: 1.4rem;
}

.prose strong {
  color: var(--text);
}

.prose .callout {
  margin: 1.75rem 0;
  padding: 1.15rem 1.35rem;
  border-radius: var(--radius);
  background: var(--gradient-soft);
  border: 1px solid var(--border);
  font-size: 0.93rem;
  color: var(--text-muted);
  backdrop-filter: blur(8px);
}

/* ── FAQ ── */
.faq-list {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  padding-bottom: 3.5rem;
}

.faq-item {
  border-radius: var(--radius);
  background: var(--glass);
  backdrop-filter: blur(12px);
  border: 1px solid var(--border-soft);
  overflow: hidden;
  transition: border-color 0.3s, box-shadow 0.3s;
}

.faq-item.is-open {
  border-color: var(--border);
  box-shadow: var(--shadow-glow);
}

.faq-item__q {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 1.15rem 1.35rem;
  background: none;
  border: none;
  color: var(--text);
  font-size: 0.96rem;
  font-weight: 600;
  text-align: left;
  cursor: pointer;
  font-family: inherit;
  transition: color 0.2s;
}

.faq-item__q:hover {
  color: var(--accent-2);
}

.faq-item__q::after {
  content: "+";
  flex-shrink: 0;
  width: 32px;
  height: 32px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 10px;
  background: rgba(77, 136, 255, 0.15);
  color: var(--accent-2);
  font-size: 1.15rem;
  transition: transform 0.35s var(--ease), background 0.3s;
}

.faq-item.is-open .faq-item__q::after {
  content: "−";
  transform: rotate(180deg);
  background: rgba(139, 92, 246, 0.2);
}

.faq-item__a-wrap {
  display: grid;
  grid-template-rows: 0fr;
  transition: grid-template-rows 0.4s var(--ease);
}

.faq-item.is-open .faq-item__a-wrap {
  grid-template-rows: 1fr;
}

.faq-item__a {
  overflow: hidden;
  padding: 0 1.35rem;
  color: var(--text-muted);
  font-size: 0.93rem;
  line-height: 1.65;
}

.faq-item.is-open .faq-item__a {
  padding-bottom: 1.2rem;
}

/* ── Contact ── */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.35rem;
  padding-bottom: 3.5rem;
}

.contact-card {
  padding: 1.6rem;
  border-radius: var(--radius-lg);
  background: var(--glass);
  backdrop-filter: blur(14px);
  border: 1px solid var(--border-soft);
  transition: transform 0.3s var(--ease), border-color 0.3s;
}

.contact-card:hover {
  transform: translateY(-4px);
  border-color: var(--border);
}

.contact-card h3 {
  margin: 0 0 0.8rem;
  font-size: 1.02rem;
  color: #fff;
}

.contact-card p {
  margin: 0 0 0.5rem;
  color: var(--text-muted);
  font-size: 0.93rem;
}

.contact-card a {
  font-weight: 600;
}

/* ── Footer ── */
.site-footer {
  margin-top: auto;
  border-top: 1px solid var(--border-soft);
  background: rgba(8, 14, 28, 0.85);
  backdrop-filter: blur(12px);
  padding: 3.5rem 0 1.75rem;
  position: relative;
  z-index: 1;
}

.site-footer__grid {
  display: grid;
  grid-template-columns: 1.4fr repeat(3, 1fr);
  gap: 2rem;
  margin-bottom: 2.5rem;
}

.site-footer__brand p {
  margin: 0.85rem 0 0;
  font-size: 0.9rem;
  color: var(--text-dim);
  max-width: 19rem;
  line-height: 1.6;
}

.site-footer__col h4 {
  margin: 0 0 0.9rem;
  font-size: 0.76rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.07em;
  color: var(--text-dim);
}

.site-footer__col ul {
  list-style: none;
  margin: 0;
  padding: 0;
}

.site-footer__col li {
  margin-bottom: 0.5rem;
}

.site-footer__col a {
  color: var(--text-muted);
  font-size: 0.89rem;
  transition: color 0.2s, transform 0.2s;
  display: inline-block;
}

.site-footer__col a:hover {
  color: #fff;
  transform: translateX(3px);
}

.site-footer__bottom {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 0.85rem;
  padding-top: 1.75rem;
  border-top: 1px solid var(--border-soft);
  font-size: 0.84rem;
  color: var(--text-dim);
}

.site-footer__bottom a {
  color: var(--text-dim);
}

.site-footer__bottom a:hover {
  color: var(--accent-2);
}

/* ── Layout ── */
.page-wrap {
  display: flex;
  flex-direction: column;
  min-height: 100vh;
  position: relative;
}

main {
  flex: 1;
  position: relative;
  z-index: 1;
}

/* ── Tuiles liens ── */
.link-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(230px, 1fr));
  gap: 1.1rem;
}

.link-tile {
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
  padding: 1.35rem;
  border-radius: var(--radius);
  background: var(--glass);
  backdrop-filter: blur(12px);
  border: 1px solid var(--border-soft);
  color: var(--text);
  transition: border-color 0.3s, transform 0.3s var(--ease), box-shadow 0.3s;
}

.link-tile:hover {
  border-color: var(--border);
  transform: translateY(-5px);
  box-shadow: var(--shadow-glow);
  text-decoration: none;
  color: #fff;
}

.link-tile span {
  font-weight: 600;
  font-size: 0.96rem;
}

.link-tile small {
  color: var(--text-dim);
  font-size: 0.84rem;
}

/* ── Bandeau confiance ── */
.trust-strip {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 1.5rem 2.5rem;
  padding: 1.5rem 0 0;
  margin-top: 1rem;
}

.trust-strip__item {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.85rem;
  color: var(--text-dim);
  font-weight: 500;
}

.trust-strip__dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--gradient);
  animation: pulse-glow 2s ease infinite;
}

/* ── Responsive ── */
@media (max-width: 900px) {
  .site-footer__grid {
    grid-template-columns: 1fr 1fr;
  }

  .contact-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 640px) {
  .nav-toggle {
    display: block;
  }

  .site-nav {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    flex-direction: column;
    padding: 0.85rem 1rem 1.1rem;
    background: rgba(12, 20, 40, 0.98);
    border-bottom: 1px solid var(--border-soft);
    backdrop-filter: blur(20px);
  }

  .site-nav.is-open {
    display: flex;
  }

  .site-header__inner {
    position: relative;
  }

  .site-footer__grid {
    grid-template-columns: 1fr;
  }

  .hero {
    padding-top: 3.5rem;
  }
}