/* ==========================================================================
   LUNIT — Solutions Informatiques
   Style "Liquid Glass" — verre dépoli translucide sur fond bleu nuit,
   halos lumineux cyan repris du logo (croissant de lune / circuit).
   ========================================================================== */

:root {
  --bg-void: #060c18;
  --bg-void-2: #0a1526;
  --bg-void-3: #0d1c33;

  --cyan: #5fd4ea;
  --cyan-bright: #9beefb;
  --cyan-glow: rgba(95, 212, 234, .45);
  --blue-orb: #3a6fd8;
  --teal-orb: #2fd6b8;
  --violet-orb: #7a6ff0;

  --silver: #f3f7fa;
  --text: #cdd9e3;
  --text-dim: #8ea0b2;
  --text-faint: #6c7f92;

  --glass-fill: rgba(255, 255, 255, .07);
  --glass-fill-strong: rgba(255, 255, 255, .13);
  --glass-fill-cta: rgba(95, 212, 234, .16);
  --glass-border: rgba(255, 255, 255, .20);
  --glass-border-soft: rgba(255, 255, 255, .10);
  --glass-highlight: rgba(255, 255, 255, .5);

  --radius-xl: 32px;
  --radius-lg: 24px;
  --radius-md: 18px;
  --radius-sm: 12px;
  --radius-pill: 999px;

  --blur: blur(22px) saturate(160%);
  --blur-soft: blur(14px) saturate(140%);

  --font-head: "Space Grotesk", "Segoe UI", Arial, sans-serif;
  --font-body: "Inter", "Segoe UI", Arial, sans-serif;

  --container: 1180px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: var(--font-body);
  color: var(--text);
  background: var(--bg-void);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}
img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
h1, h2, h3, h4 { font-family: var(--font-head); line-height: 1.18; margin: 0 0 .6em; color: var(--silver); font-weight: 600; }
p { margin: 0 0 1em; }
ul { margin: 0; padding: 0; list-style: none; }
strong { color: var(--silver); }

.container { width: 100%; max-width: var(--container); margin: 0 auto; padding: 0 24px; position: relative; z-index: 1; }
section { padding: 100px 0; position: relative; }
@media (max-width: 768px) { section { padding: 64px 0; } }

/* ---------------- Fond animé : halos lumineux ---------------- */
.bg-orbs { position: fixed; inset: 0; z-index: 0; overflow: hidden; pointer-events: none; }
.bg-orbs span {
  position: absolute;
  border-radius: 50%;
  filter: blur(90px);
  opacity: .38;
  animation: float 22s ease-in-out infinite;
}
.orb-1 { width: 520px; height: 520px; top: -140px; left: -120px; background: var(--cyan); animation-delay: 0s; }
.orb-2 { width: 460px; height: 460px; top: 30%; right: -160px; background: var(--blue-orb); animation-delay: -6s; }
.orb-3 { width: 380px; height: 380px; bottom: -120px; left: 20%; background: var(--teal-orb); animation-delay: -12s; }
.orb-4 { width: 340px; height: 340px; bottom: 10%; right: 10%; background: var(--violet-orb); opacity: .22; animation-delay: -18s; }
@keyframes float {
  0%, 100% { transform: translate(0, 0) scale(1); }
  33% { transform: translate(30px, -40px) scale(1.06); }
  66% { transform: translate(-24px, 26px) scale(0.96); }
}
@media (prefers-reduced-motion: reduce) { .bg-orbs span { animation: none; } }

/* ---------------- Verre : classe de base ---------------- */
.glass {
  position: relative;
  overflow: hidden;
  background: linear-gradient(155deg, var(--glass-fill-strong), var(--glass-fill) 60%);
  backdrop-filter: var(--blur);
  -webkit-backdrop-filter: var(--blur);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-lg);
  box-shadow: 0 8px 32px rgba(0,0,0,.35), inset 0 1px 0 rgba(255,255,255,.25), inset 0 -1px 0 rgba(255,255,255,.04);
  transition: box-shadow .35s ease, border-color .35s ease, transform .35s ease;
}
.glass::before {
  content: "";
  position: absolute;
  inset: 0;
  border-radius: inherit;
  padding: 1px;
  background: linear-gradient(155deg, rgba(255,255,255,.35), transparent 40%, transparent 70%, rgba(255,255,255,.08));
  -webkit-mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
  -webkit-mask-composite: xor;
  mask-composite: exclude;
  pointer-events: none;
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-head);
  font-size: .78rem;
  letter-spacing: .1em;
  text-transform: uppercase;
  color: var(--cyan-bright);
  background: var(--glass-fill-cta);
  backdrop-filter: var(--blur-soft);
  -webkit-backdrop-filter: var(--blur-soft);
  border: 1px solid rgba(95,212,234,.35);
  padding: 8px 16px;
  border-radius: var(--radius-pill);
  margin-bottom: 20px;
}
.section-head { max-width: 680px; margin: 0 auto 48px; text-align: center; }
.section-head h2 { font-size: clamp(1.8rem, 3.4vw, 2.6rem); }
.section-head p { color: var(--text-dim); font-size: 1.05rem; }

/* ---------------- Boutons ---------------- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-head);
  font-weight: 600;
  font-size: .97rem;
  padding: 15px 28px;
  border-radius: var(--radius-pill);
  border: 1px solid transparent;
  cursor: pointer;
  transition: transform .18s ease, box-shadow .18s ease, background .18s ease, border-color .18s ease;
  white-space: nowrap;
}
.btn:hover { transform: translateY(-2px); }
.btn-primary {
  background: linear-gradient(135deg, var(--cyan), #3ea8c4);
  color: #04121e;
  box-shadow: 0 10px 30px var(--cyan-glow), inset 0 1px 0 rgba(255,255,255,.5);
}
.btn-primary:hover { box-shadow: 0 14px 36px var(--cyan-glow), inset 0 1px 0 rgba(255,255,255,.6); }
.btn-glass {
  background: var(--glass-fill);
  backdrop-filter: var(--blur-soft);
  -webkit-backdrop-filter: var(--blur-soft);
  border-color: var(--glass-border);
  color: var(--silver);
}
.btn-glass:hover { background: var(--glass-fill-strong); border-color: rgba(255,255,255,.35); }
.btn-block { width: 100%; justify-content: center; }

/* ---------------- Header / Nav ---------------- */
.site-header { position: sticky; top: 0; z-index: 200; padding: 18px 0; }
.nav-shell {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 10px 18px 10px 14px;
  border-radius: var(--radius-pill);
}
.brand { display: flex; align-items: center; gap: 10px; }
.brand img { height: 40px; width: 40px; border-radius: 10px; }
.brand-name { font-family: var(--font-head); font-weight: 700; font-size: 1.2rem; color: var(--silver); letter-spacing: .01em; }
.brand-tagline { display: block; font-size: .6rem; letter-spacing: .1em; text-transform: uppercase; color: var(--cyan-bright); font-weight: 500; }

.nav-links { display: flex; align-items: center; gap: 2px; }
.nav-links a.nav-link {
  display: block;
  padding: 10px 16px;
  font-size: .92rem;
  font-weight: 500;
  color: var(--text);
  border-radius: var(--radius-pill);
  transition: color .15s ease, background .15s ease;
}
.nav-links a.nav-link:hover, .nav-links a.nav-link.active { color: var(--silver); background: var(--glass-fill-strong); }

.nav-cta { display: flex; align-items: center; gap: 10px; }
.nav-phone {
  display: flex; align-items: center; gap: 8px;
  color: var(--silver); font-weight: 600; font-size: .9rem;
  padding: 10px 14px; border-radius: var(--radius-pill);
}
.nav-phone svg { flex-shrink: 0; color: var(--cyan); }

.nav-toggle {
  display: none;
  background: var(--glass-fill);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-sm);
  width: 44px; height: 44px;
  color: var(--silver);
  cursor: pointer;
  backdrop-filter: var(--blur-soft);
}

@media (max-width: 900px) {
  .nav-links {
    position: fixed; inset: 90px 16px auto 16px; flex-direction: column; align-items: stretch;
    padding: 14px; gap: 4px;
    background: linear-gradient(155deg, rgba(10,21,38,.92), rgba(10,21,38,.85));
    backdrop-filter: var(--blur);
    -webkit-backdrop-filter: var(--blur);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-lg);
    box-shadow: 0 20px 50px rgba(0,0,0,.45);
    opacity: 0; visibility: hidden; transform: translateY(-8px);
    transition: opacity .2s ease, transform .2s ease, visibility .2s ease;
  }
  .nav-links.open { opacity: 1; visibility: visible; transform: translateY(0); }
  .nav-links a.nav-link { padding: 14px 16px; font-size: 1.02rem; }
  .nav-toggle { display: inline-flex; align-items: center; justify-content: center; flex-shrink: 0; }
  .nav-phone { display: none; }
  .nav-cta { gap: 8px; }
  .nav-cta .btn-primary { padding: 12px 18px; font-size: .86rem; }
  .brand-tagline { display: none; }
}
@media (max-width: 460px) {
  .brand > span { display: none; }
  .nav-shell { padding-left: 10px; }
}

/* ---------------- Hero ---------------- */
.hero { padding: 70px 0 40px; }
.hero-grid { display: grid; grid-template-columns: 1.05fr .95fr; gap: 40px; align-items: center; }
@media (max-width: 900px) { .hero-grid { grid-template-columns: 1fr; text-align: center; } }
.hero h1 { font-size: clamp(2.2rem, 4.4vw, 3.5rem); }
.hero h1 .accent { color: var(--cyan-bright); }
.hero p.lead { color: var(--text); font-size: 1.12rem; max-width: 540px; }
@media (max-width: 900px) { .hero p.lead { margin-left: auto; margin-right: auto; } }
.hero-actions { display: flex; gap: 14px; flex-wrap: wrap; margin-top: 30px; }
@media (max-width: 900px) { .hero-actions { justify-content: center; } }

.hero-art { position: relative; display: flex; justify-content: center; }
.hero-art-glass { padding: 44px; display: flex; align-items: center; justify-content: center; border-radius: var(--radius-xl); }
.hero-art img { max-width: 260px; filter: drop-shadow(0 10px 40px rgba(95,212,234,.5)); }

.trust-row { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 40px; }
@media (max-width: 900px) { .trust-row { justify-content: center; } }
.trust-item {
  display: flex; align-items: center; gap: 9px;
  color: var(--text); font-size: .84rem;
  padding: 10px 16px;
  border-radius: var(--radius-pill);
}
.trust-item svg { color: var(--cyan); flex-shrink: 0; }

/* ---------------- Cartes verre / grilles ---------------- */
.grid { display: grid; gap: 24px; }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-2 { grid-template-columns: repeat(2, 1fr); }
@media (max-width: 900px) { .grid-3, .grid-2 { grid-template-columns: 1fr; } }

.glass-card { padding: 30px 28px; }
.glass-card .icon-badge {
  width: 54px; height: 54px; border-radius: var(--radius-md);
  background: linear-gradient(155deg, rgba(95,212,234,.28), rgba(95,212,234,.06));
  border: 1px solid rgba(95,212,234,.3);
  display: flex; align-items: center; justify-content: center;
  color: var(--cyan-bright); margin-bottom: 18px;
  transition: transform .35s cubic-bezier(.2,.8,.3,1.4);
}
.glass-card:hover .icon-badge,
.service-card .icon-badge {
  transition: transform .35s cubic-bezier(.2,.8,.3,1.4);
}
.glass-card:hover .icon-badge { transform: scale(1.08) rotate(-3deg); }
.service-toggle:hover .icon-badge { transform: scale(1.08) rotate(-3deg); }
.glass-card h3 { font-size: 1.12rem; }
.glass-card p { color: var(--text-dim); font-size: .95rem; margin-bottom: 0; }

/* ---------------- Services : accordéon verre ---------------- */
.service-card { padding: 0; overflow: hidden; }
.service-toggle {
  width: 100%;
  display: flex;
  align-items: center;
  gap: 18px;
  padding: 26px 28px;
  background: none;
  border: none;
  cursor: pointer;
  text-align: left;
  font-family: var(--font-body);
  color: inherit;
}
.service-toggle .icon-badge { margin-bottom: 0; flex-shrink: 0; }
.service-toggle .service-title-wrap { flex: 1; min-width: 0; }
.service-toggle h3 { margin-bottom: 4px; font-size: 1.12rem; }
.service-toggle p { color: var(--text-dim); font-size: .92rem; margin: 0; }
.service-toggle .chevron { flex-shrink: 0; color: var(--text-dim); transition: transform .3s ease; }
.service-card.open .service-toggle .chevron { transform: rotate(180deg); color: var(--cyan); }

.service-panel-wrap { display: grid; grid-template-rows: 0fr; transition: grid-template-rows .38s ease; }
.service-card.open .service-panel-wrap { grid-template-rows: 1fr; }
.service-panel { overflow: hidden; }
.service-panel-inner { padding: 0 28px 30px; border-top: 1px solid var(--glass-border-soft); margin-top: 2px; padding-top: 24px; }
.service-panel-inner h4 { font-size: .95rem; color: var(--cyan-bright); text-transform: uppercase; letter-spacing: .06em; margin-bottom: 14px; }
.service-panel-inner .bullet-list { margin-bottom: 22px; }
.service-panel-inner .bullet-list:last-child { margin-bottom: 0; }

.bullet-list li { position: relative; padding-left: 24px; margin-bottom: 10px; font-size: .95rem; color: var(--text); }
.bullet-list li::before { content: ""; position: absolute; left: 0; top: 8px; width: 8px; height: 8px; border-radius: 2px; background: var(--cyan); transform: rotate(45deg); }

.deliverable-list li { display: flex; gap: 12px; align-items: flex-start; margin-bottom: 14px; font-size: .94rem; }
.deliverable-list li svg { flex-shrink: 0; margin-top: 2px; color: var(--cyan); }
.deliverable-list li strong { display: block; color: var(--silver); font-size: .95rem; }
.deliverable-list li span { color: var(--text-dim); font-size: .87rem; }

.mini-note {
  font-size: .86rem; color: var(--text-dim);
  background: rgba(95,212,234,.07);
  border: 1px dashed rgba(95,212,234,.35);
  border-radius: var(--radius-sm);
  padding: 14px 16px;
}

/* ---------------- CTA band ---------------- */
.cta-band { padding: 56px 40px; text-align: center; border-radius: var(--radius-xl); }
@media (max-width: 600px) { .cta-band { padding: 40px 24px; } }
.cta-band h2 { font-size: clamp(1.5rem, 3vw, 2.1rem); }
.cta-band p { color: var(--text); max-width: 560px; margin: 0 auto 28px; }
.cta-actions { display: flex; gap: 14px; justify-content: center; flex-wrap: wrap; }

/* ---------------- À propos ---------------- */
.about-grid { display: grid; grid-template-columns: .85fr 1.15fr; gap: 44px; align-items: center; }
@media (max-width: 900px) { .about-grid { grid-template-columns: 1fr; } }
.about-portrait { padding: 20px; display: flex; justify-content: center; border-radius: var(--radius-xl); }
.about-portrait img { border-radius: var(--radius-lg); max-width: 320px; }

.check-list li { display: flex; gap: 12px; align-items: flex-start; font-size: .96rem; color: var(--text); margin-bottom: 14px; }
.check-list li svg { flex-shrink: 0; margin-top: 3px; color: var(--cyan); }
.check-list li strong { display: block; color: var(--silver); }
.check-list li span.desc { color: var(--text-dim); font-size: .87rem; }

/* ---------------- Contact ---------------- */
.contact-grid { display: grid; grid-template-columns: 1.2fr .8fr; gap: 28px; align-items: flex-start; }
@media (max-width: 900px) { .contact-grid { grid-template-columns: 1fr; } }
.contact-form-card { padding: 38px; }

.form-grid { display: grid; gap: 18px; grid-template-columns: 1fr 1fr; }
@media (max-width: 700px) { .form-grid { grid-template-columns: 1fr; } }
.form-field { display: flex; flex-direction: column; gap: 7px; }
.form-field.full { grid-column: 1 / -1; }
.form-field label { font-size: .84rem; font-weight: 600; color: var(--text); }
.form-field input, .form-field select, .form-field textarea {
  font-family: var(--font-body);
  font-size: .96rem;
  padding: 13px 15px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--glass-border);
  background: rgba(255,255,255,.05);
  color: var(--silver);
  resize: vertical;
}
.form-field select option { background: #0a1526; color: var(--silver); }
.form-field input::placeholder, .form-field textarea::placeholder { color: var(--text-faint); }
.form-field input:focus, .form-field select:focus, .form-field textarea:focus {
  outline: none;
  border-color: var(--cyan);
  box-shadow: 0 0 0 3px var(--cyan-glow);
  background: rgba(255,255,255,.08);
}
.form-note { font-size: .78rem; color: var(--text-faint); }
.form-note a { color: var(--cyan); }
.hp-field { position: absolute; left: -9999px; top: -9999px; }
.form-status { padding: 14px 16px; border-radius: var(--radius-sm); font-size: .92rem; margin-top: 16px; display: none; border: 1px solid transparent; }
.form-status.show { display: block; }
.form-status.success { background: rgba(47,191,113,.12); color: #7fe3ab; border-color: rgba(47,191,113,.35); }
.form-status.error { background: rgba(229,85,90,.1); color: #f2a3a6; border-color: rgba(229,85,90,.35); }

.contact-info-card { padding: 32px; }
.contact-info { display: grid; gap: 18px; }
.contact-info .item { display: flex; gap: 14px; align-items: flex-start; }
.contact-info .item .ic {
  width: 46px; height: 46px; border-radius: var(--radius-sm);
  background: rgba(95,212,234,.14); border: 1px solid rgba(95,212,234,.3);
  color: var(--cyan-bright); display: flex; align-items: center; justify-content: center; flex-shrink: 0;
}
.contact-info .item strong { display: block; color: var(--silver); font-size: .95rem; }
.contact-info .item span, .contact-info .item a { color: var(--text-dim); font-size: .9rem; }
.contact-info .item a:hover { color: var(--cyan-bright); }

/* ---------------- Footer ---------------- */
.site-footer { padding: 50px 0 30px; }
.footer-glass { padding: 36px 32px; display: flex; flex-direction: column; gap: 24px; }
.footer-top { display: flex; justify-content: space-between; align-items: center; flex-wrap: wrap; gap: 20px; }
.footer-brand { display: flex; align-items: center; gap: 12px; }
.footer-links { display: flex; flex-wrap: wrap; gap: 8px 22px; }
.footer-links a { color: var(--text-dim); font-size: .88rem; }
.footer-links a:hover { color: var(--cyan-bright); }
.footer-bottom { border-top: 1px solid var(--glass-border-soft); padding-top: 20px; display: flex; justify-content: space-between; flex-wrap: wrap; gap: 10px; color: var(--text-faint); font-size: .8rem; }
.footer-bottom a { color: var(--text-faint); }
.footer-bottom a:hover { color: var(--cyan-bright); }

/* ---------------- Divers ---------------- */
.skip-link { position: absolute; left: -9999px; top: 0; background: var(--cyan); color: #04121e; padding: 10px 16px; z-index: 999; border-radius: 0 0 8px 0; }
.skip-link:focus { left: 0; }

.legal-content { padding: 40px; }
.legal-content h2 { margin-top: 1.8em; font-size: 1.25rem; }
.legal-content h2:first-child { margin-top: 0; }
.legal-content p, .legal-content li { color: var(--text-dim); }
.legal-content ul { list-style: disc; padding-left: 22px; margin-bottom: 1em; }
.legal-content li { margin-bottom: 6px; }
.legal-content a { color: var(--cyan); }
.legal-content strong { color: var(--silver); }

.page-hero-legal { padding: 50px 0 10px; text-align: center; }
.page-hero-legal h1 { font-size: clamp(1.8rem, 3.4vw, 2.4rem); }
.breadcrumb { color: var(--text-faint); font-size: .85rem; margin-bottom: 16px; }
.breadcrumb a { color: var(--cyan); }
.breadcrumb a:hover { text-decoration: underline; }

.error-page { min-height: 60vh; display: flex; align-items: center; justify-content: center; text-align: center; }

/* ==========================================================================
   Micro-interactions "Liquid Glass" — reflet, lueur au curseur, révélation
   ========================================================================== */

/* Reflet lumineux qui balaie la carte au survol (effet verre) */
.glass::after {
  content: "";
  position: absolute;
  inset: 0;
  z-index: 2;
  pointer-events: none;
  background: linear-gradient(115deg, transparent 30%, rgba(255,255,255,.10) 45%, rgba(255,255,255,.16) 50%, rgba(255,255,255,.10) 55%, transparent 70%);
  transform: translateX(-120%);
  opacity: 0;
  transition: opacity .3s ease;
}
.glass-card:hover::after,
.contact-form-card:hover::after,
.contact-info-card:hover::after,
.about-portrait:hover::after,
.cta-band:hover::after,
.service-card:hover::after {
  opacity: 1;
  animation: sheen-sweep 1.1s ease forwards;
}
@keyframes sheen-sweep {
  from { transform: translateX(-120%); }
  to { transform: translateX(120%); }
}

/* Lueur douce qui suit le curseur (définie via --mx / --my en JS) */
.glow-cursor { position: relative; }
.glow-cursor::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: 1;
  pointer-events: none;
  border-radius: inherit;
  background: radial-gradient(220px circle at var(--mx, 50%) var(--my, 50%), rgba(95,212,234,.16), transparent 70%);
  opacity: 0;
  transition: opacity .3s ease;
}
.glow-cursor:hover::before { opacity: 1; }

/* Révélation au défilement */
.reveal, .section-head {
  opacity: 0;
  transform: translateY(26px);
  transition: opacity .7s cubic-bezier(.2,.7,.2,1), transform .7s cubic-bezier(.2,.7,.2,1);
}
.reveal.is-visible, .section-head.is-visible {
  opacity: 1;
  transform: translateY(0);
}
.reveal-stagger.is-visible { transition-delay: var(--reveal-delay, 0ms); }

/* En-tête qui se densifie légèrement au défilement */
.site-header .nav-shell {
  transition: background .3s ease, box-shadow .3s ease, border-color .3s ease;
}
.site-header.is-scrolled .nav-shell {
  background: linear-gradient(155deg, rgba(255,255,255,.16), rgba(255,255,255,.08) 60%);
  box-shadow: 0 12px 34px rgba(0,0,0,.4), inset 0 1px 0 rgba(255,255,255,.3);
  border-color: rgba(255,255,255,.28);
}

@media (prefers-reduced-motion: reduce) {
  .reveal, .section-head { opacity: 1; transform: none; transition: none; }
  .glass::after { display: none; }
  .glow-cursor::before { display: none; }
  .glass-card:hover .icon-badge, .service-toggle:hover .icon-badge { transform: none; }
}
@media (hover: none) {
  .glow-cursor::before { display: none; }
}