/* =====================================================
   LCT Media Marketing — feuille de style
   Dark premium · glass · halos maîtrisés
   ===================================================== */

:root {
  --bg: #07080d;
  --bg-2: #0a0c14;
  --ink: #eef0f6;
  --ink-soft: #b7bccb;
  --ink-mute: #7c8296;
  --line: rgba(255, 255, 255, 0.09);
  --line-strong: rgba(255, 255, 255, 0.16);

  --glass: rgba(255, 255, 255, 0.045);
  --glass-2: rgba(255, 255, 255, 0.03);

  --accent: #7c9bff;
  --accent-2: #c6a4ff;
  --accent-warm: #6ee7d1;

  --radius: 20px;
  --radius-sm: 13px;
  --maxw: 1180px;
  --gutter: clamp(20px, 5vw, 64px);

  --font-display: "Cabinet Grotesk", "Satoshi", system-ui, sans-serif;
  --font-body: "Satoshi", system-ui, -apple-system, sans-serif;
  --font-serif: "Fraunces", Georgia, serif;

  --ease: cubic-bezier(0.22, 1, 0.36, 1);
}

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

html { scroll-behavior: smooth; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: var(--font-body);
  font-size: clamp(16px, 1.05vw, 17px);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  overflow-x: hidden;
}

a { color: inherit; text-decoration: none; }
h1, h2, h3 { margin: 0; font-weight: 700; letter-spacing: -0.02em; line-height: 1.05; }

.serif {
  font-family: var(--font-serif);
  font-weight: 400;
  font-style: italic;
  letter-spacing: -0.01em;
}

/* ---------- Background ---------- */
.bg {
  position: fixed;
  inset: 0;
  z-index: -1;
  overflow: hidden;
  background:
    radial-gradient(120% 80% at 50% -10%, #0d1020 0%, var(--bg) 55%),
    var(--bg);
}
.bg__grid {
  position: absolute;
  inset: -1px;
  background-image:
    linear-gradient(var(--line) 1px, transparent 1px),
    linear-gradient(90deg, var(--line) 1px, transparent 1px);
  background-size: 64px 64px;
  mask-image: radial-gradient(80% 60% at 50% 20%, #000 0%, transparent 75%);
  opacity: 0.35;
}
.bg__halo {
  position: absolute;
  border-radius: 50%;
  filter: blur(80px);
  opacity: 0.5;
  will-change: transform;
}
.bg__halo--a {
  width: 44vw; height: 44vw;
  top: -12vw; left: -6vw;
  background: radial-gradient(circle, rgba(124, 155, 255, 0.42), transparent 68%);
}
.bg__halo--b {
  width: 40vw; height: 40vw;
  top: 34vh; right: -10vw;
  background: radial-gradient(circle, rgba(198, 164, 255, 0.34), transparent 68%);
}
.bg__halo--c {
  width: 34vw; height: 34vw;
  bottom: -8vw; left: 30vw;
  background: radial-gradient(circle, rgba(110, 231, 209, 0.18), transparent 70%);
}
/* ---------- Layout helpers ---------- */
.section {
  max-width: var(--maxw);
  margin-inline: auto;
  padding-inline: var(--gutter);
  padding-block: clamp(88px, 12vw, 160px);
}
.eyebrow {
  margin: 0 0 18px;
  font-family: var(--font-display);
  font-size: 0.78rem;
  font-weight: 500;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--ink-mute);
}
.section__title {
  font-family: var(--font-display);
  font-size: clamp(2rem, 4.6vw, 3.4rem);
  font-weight: 700;
  color: var(--ink);
}
.section__head { max-width: 640px; margin-bottom: clamp(40px, 6vw, 68px); }
.section__grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: clamp(32px, 6vw, 80px);
  align-items: start;
}
.section__text p { color: var(--ink-soft); margin: 0 0 20px; max-width: 46ch; }
.section__text p:last-child { margin-bottom: 0; }
.section__note { color: var(--ink-soft); margin-top: 24px; max-width: 40ch; }

/* ---------- Nav ---------- */
.nav {
  position: sticky;
  top: 0;
  z-index: 40;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  max-width: var(--maxw);
  margin-inline: auto;
  padding: 18px var(--gutter);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  transition: background 0.4s var(--ease), border-color 0.4s var(--ease);
  border-bottom: 1px solid transparent;
}
.nav.is-stuck {
  background: rgba(7, 8, 13, 0.6);
  border-bottom-color: var(--line);
}
.nav__brand { display: flex; align-items: baseline; gap: 9px; }
.nav__mark {
  font-family: var(--font-display);
  font-weight: 800;
  letter-spacing: 0.04em;
  font-size: 1.15rem;
}
.nav__word { font-size: 0.9rem; color: var(--ink-mute); letter-spacing: 0.01em; }
.nav__links { display: flex; gap: 30px; }
.nav__links a {
  font-size: 0.92rem;
  color: var(--ink-soft);
  transition: color 0.25s var(--ease);
}
.nav__links a:hover { color: var(--ink); }
.nav__cta {
  font-size: 0.9rem;
  padding: 9px 18px;
  border-radius: 100px;
  border: 1px solid var(--line-strong);
  background: var(--glass);
  transition: border-color 0.3s var(--ease), background 0.3s var(--ease), transform 0.3s var(--ease);
}
.nav__cta:hover { border-color: rgba(255,255,255,0.4); background: rgba(255,255,255,0.09); transform: translateY(-1px); }

/* ---------- Hero ---------- */
.hero {
  max-width: var(--maxw);
  margin-inline: auto;
  padding: clamp(48px, 9vw, 110px) var(--gutter) clamp(60px, 9vw, 120px);
}
.hero__inner {
  display: grid;
  grid-template-columns: 1.05fr 0.95fr;
  gap: clamp(32px, 5vw, 72px);
  align-items: center;
}
.hero__title {
  font-family: var(--font-display);
  font-size: clamp(2.6rem, 6.4vw, 5rem);
  font-weight: 800;
  margin-bottom: 26px;
}
.hero__lead {
  color: var(--ink-soft);
  font-size: clamp(1.02rem, 1.4vw, 1.18rem);
  max-width: 44ch;
  margin: 0 0 32px;
}
.hero__meta {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 12px;
}
.hero__meta span {
  font-size: 0.82rem;
  color: var(--ink-soft);
  padding: 7px 14px;
  border-radius: 100px;
  border: 1px solid var(--line);
  background: var(--glass-2);
}

/* ---------- Hero mockup ---------- */
.hero__stage {
  position: relative;
  min-height: 360px;
}
.panel {
  border-radius: var(--radius);
  border: 1px solid var(--line-strong);
  background: linear-gradient(160deg, rgba(255,255,255,0.07), rgba(255,255,255,0.02));
  backdrop-filter: blur(18px);
  -webkit-backdrop-filter: blur(18px);
  box-shadow: 0 30px 70px -30px rgba(0,0,0,0.7), inset 0 1px 0 rgba(255,255,255,0.12);
  will-change: transform;
}
.panel--main { padding: 20px; }
.panel__head { display: flex; align-items: center; gap: 7px; margin-bottom: 22px; }
.panel__dot { width: 9px; height: 9px; border-radius: 50%; background: rgba(255,255,255,0.22); }
.panel__tag {
  margin-left: auto;
  font-size: 0.72rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--ink-mute);
}
.metric {
  display: flex;
  align-items: flex-end;
  gap: 6px;
  height: 92px;
  padding: 16px 16px 12px;
  border-radius: var(--radius-sm);
  background: rgba(255,255,255,0.03);
  border: 1px solid var(--line);
  margin-bottom: 16px;
  position: relative;
}
.metric__label {
  position: absolute; top: 12px; left: 16px;
  font-size: 0.74rem; color: var(--ink-mute);
}
.metric__value {
  position: absolute; top: 12px; right: 16px;
  font-family: var(--font-display); font-weight: 700; font-size: 0.82rem;
  color: var(--accent-warm);
}
.spark {
  flex: 1;
  height: calc(var(--h) * 100%);
  border-radius: 4px 4px 2px 2px;
  background: linear-gradient(180deg, var(--accent), rgba(124,155,255,0.15));
  transform-origin: bottom;
  animation: grow 0.9s var(--ease) both;
}
.spark:nth-child(3){ animation-delay: .05s } .spark:nth-child(4){ animation-delay:.1s }
.spark:nth-child(5){ animation-delay:.15s } .spark:nth-child(6){ animation-delay:.2s }
.spark:nth-child(7){ animation-delay:.25s } .spark:nth-child(8){ animation-delay:.3s }
.spark:nth-child(9){ animation-delay:.35s }
@keyframes grow { from { transform: scaleY(0); opacity: 0 } to { transform: scaleY(1); opacity: 1 } }

.panel__row { display: grid; grid-template-columns: repeat(3, 1fr); gap: 10px; }
.tile {
  padding: 12px;
  border-radius: 11px;
  background: rgba(255,255,255,0.03);
  border: 1px solid var(--line);
}
.tile__k { display: block; font-size: 0.72rem; color: var(--ink-mute); margin-bottom: 10px; }
.tile__bar {
  display: block; height: 5px; border-radius: 100px;
  background: rgba(255,255,255,0.1); position: relative; overflow: hidden;
}
.tile__bar::after {
  content: ""; position: absolute; inset: 0; width: var(--w);
  border-radius: 100px;
  background: linear-gradient(90deg, var(--accent), var(--accent-2));
}

.panel--float {
  position: absolute;
  right: -6%; bottom: -8%;
  width: 190px;
  padding: 14px;
}
.miniproduct__img {
  height: 78px; border-radius: 10px; margin-bottom: 12px;
  background:
    radial-gradient(120% 120% at 30% 20%, rgba(198,164,255,0.5), transparent 60%),
    linear-gradient(150deg, rgba(124,155,255,0.35), rgba(255,255,255,0.04));
}
.miniproduct__lines { display: flex; flex-direction: column; gap: 7px; margin-bottom: 12px; }
.miniproduct__lines span { height: 7px; border-radius: 100px; background: rgba(255,255,255,0.14); }
.miniproduct__lines span:last-child { width: 60%; }
.miniproduct__buy {
  text-align: center; font-size: 0.78rem; font-weight: 700;
  font-family: var(--font-display);
  padding: 9px; border-radius: 9px; color: #0a0c14;
  background: linear-gradient(90deg, #fff, #dfe4ff);
}
.panel--chip {
  position: absolute;
  left: -5%; top: -6%;
  padding: 12px 16px;
  display: flex; flex-direction: column; gap: 3px;
}
.chip__label { font-size: 0.72rem; color: var(--ink-mute); }
.chip__value { font-family: var(--font-display); font-weight: 700; font-size: 0.86rem; }

/* ---------- Positionnement ---------- */
.section__lead .section__title { margin-top: 4px; }

/* ---------- Cards (expertise) ---------- */
.cards {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 18px;
}
.card {
  position: relative;
  padding: 26px 24px 28px;
  border-radius: var(--radius);
  border: 1px solid var(--line);
  background: linear-gradient(165deg, var(--glass), var(--glass-2));
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  overflow: hidden;
  transition: transform 0.5s var(--ease), border-color 0.5s var(--ease), box-shadow 0.5s var(--ease);
}
.card::before {
  content: "";
  position: absolute;
  inset: 0;
  background: radial-gradient(220px 180px at var(--mx, 50%) var(--my, 0%), rgba(124,155,255,0.16), transparent 65%);
  opacity: 0;
  transition: opacity 0.5s var(--ease);
  pointer-events: none;
}
.card:hover {
  transform: translateY(-6px);
  border-color: var(--line-strong);
  box-shadow: 0 40px 80px -40px rgba(0,0,0,0.8);
}
.card:hover::before { opacity: 1; }
.card__num {
  font-family: var(--font-display);
  font-weight: 500;
  font-size: 0.8rem;
  color: var(--accent);
  letter-spacing: 0.1em;
}
.card__title {
  font-family: var(--font-display);
  font-size: 1.18rem;
  margin: 16px 0 12px;
}
.card__text { color: var(--ink-soft); font-size: 0.94rem; margin: 0; }

/* ---------- Méthode ---------- */
.steps {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 0;
  border-top: 1px solid var(--line);
}
.step {
  padding: 34px 26px 34px 0;
  border-right: 1px solid var(--line);
  padding-left: 26px;
}
.step:first-child { padding-left: 0; }
.step:last-child { border-right: none; }
.step__index {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 40px; height: 40px;
  border-radius: 50%;
  border: 1px solid var(--line-strong);
  font-family: var(--font-display);
  font-weight: 700;
  color: var(--accent);
  margin-bottom: 22px;
}
.step__title { font-family: var(--font-display); font-size: 1.1rem; margin-bottom: 10px; }
.step__text { color: var(--ink-soft); font-size: 0.92rem; margin: 0; }

/* ---------- Ecommerce grid ---------- */
.ecom__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 18px;
  grid-auto-rows: 1fr;
}
.cell {
  position: relative;
  padding: 24px;
  border-radius: var(--radius);
  border: 1px solid var(--line);
  background: linear-gradient(165deg, var(--glass), var(--glass-2));
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  display: flex;
  flex-direction: column;
  transition: transform 0.5s var(--ease), border-color 0.5s var(--ease);
}
.cell:hover { transform: translateY(-4px); border-color: var(--line-strong); }
.cell--wide { grid-column: span 2; }
.cell__k {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.05rem;
}
.cell__d { color: var(--ink-soft); font-size: 0.92rem; margin: 10px 0 0; max-width: 42ch; }
.cell__viz { margin-top: auto; padding-top: 24px; }

/* viz — page produit */
.cell__viz--product { display: grid; grid-template-columns: 1.1fr 1fr; gap: 16px; align-items: center; }
.pp__media {
  height: 118px; border-radius: 12px;
  background:
    radial-gradient(120% 120% at 25% 15%, rgba(198,164,255,0.5), transparent 55%),
    linear-gradient(150deg, rgba(124,155,255,0.4), rgba(255,255,255,0.04));
  border: 1px solid var(--line);
}
.pp__col { display: flex; flex-direction: column; gap: 10px; }
.pp__line { height: 9px; border-radius: 100px; background: rgba(255,255,255,0.14); }
.pp__line--lg { width: 90%; } .pp__line--sm { width: 55%; }
.pp__price { font-family: var(--font-display); font-weight: 700; font-size: 1.1rem; margin-top: 2px; }
.pp__cta {
  margin-top: 6px; text-align: center;
  font-family: var(--font-display); font-weight: 700; font-size: 0.82rem;
  color: #0a0c14; padding: 10px; border-radius: 9px;
  background: linear-gradient(90deg, #fff, #dfe4ff);
}

/* viz — flow */
.cell__viz--flow { display: flex; align-items: center; gap: 0; }
.flow__node {
  width: 30px; height: 30px; border-radius: 50%;
  border: 1px solid var(--line-strong); background: rgba(255,255,255,0.05);
  flex-shrink: 0;
}
.flow__node--end { background: linear-gradient(135deg, var(--accent), var(--accent-2)); border: none; }
.flow__link { flex: 1; height: 1px; background: linear-gradient(90deg, var(--line-strong), var(--accent)); }

/* viz — phone */
.cell__viz--phone { display: flex; justify-content: center; }
.phone {
  width: 72px; height: 132px; border-radius: 16px;
  border: 1px solid var(--line-strong);
  background: linear-gradient(170deg, rgba(255,255,255,0.06), rgba(255,255,255,0.02));
  padding: 12px 10px; display: flex; flex-direction: column; gap: 8px;
}
.phone span { height: 22px; border-radius: 6px; background: rgba(255,255,255,0.08); }
.phone span:first-child { background: linear-gradient(120deg, rgba(124,155,255,0.35), rgba(198,164,255,0.2)); height: 40px; }

/* viz — trust */
.cell__viz--trust { display: flex; gap: 10px; }
.badge {
  width: 34px; height: 34px; border-radius: 9px;
  border: 1px solid var(--line);
  background: rgba(255,255,255,0.04);
  position: relative;
}
.badge::after {
  content: ""; position: absolute; inset: 0; margin: auto;
  width: 12px; height: 7px; border-left: 2px solid var(--accent-warm); border-bottom: 2px solid var(--accent-warm);
  transform: rotate(-45deg) translateY(-2px);
}

/* viz — speed gauge */
.cell__viz--speed { display: flex; justify-content: center; }
.gauge {
  width: 100%; height: 8px; border-radius: 100px;
  background: rgba(255,255,255,0.08); overflow: hidden; position: relative;
}
.gauge__fill {
  position: absolute; inset: 0; width: 88%;
  border-radius: 100px;
  background: linear-gradient(90deg, var(--accent-warm), var(--accent));
}

/* viz — clarity */
.cell__viz--clarity { display: flex; flex-direction: column; gap: 10px; }
.clarity__row { height: 10px; border-radius: 100px; background: rgba(255,255,255,0.12); }
.clarity__row--m { width: 70%; background: rgba(255,255,255,0.09); }
.clarity__row--s { width: 45%; background: linear-gradient(90deg, var(--accent), transparent); }

/* ---------- Design system tokens ---------- */
.tokens {
  list-style: none;
  margin: 0; padding: 0;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
}
.token {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 12px;
  padding: 18px 20px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--line);
  background: var(--glass-2);
  transition: border-color 0.4s var(--ease), background 0.4s var(--ease);
}
.token:hover { border-color: var(--line-strong); background: var(--glass); }
.token__k { font-family: var(--font-display); font-weight: 700; font-size: 0.98rem; }
.token__v { font-size: 0.82rem; color: var(--ink-mute); }

/* ---------- Footer ---------- */
.footer {
  border-top: 1px solid var(--line);
  margin-top: 40px;
}
.footer__inner {
  max-width: var(--maxw);
  margin-inline: auto;
  padding: clamp(48px, 7vw, 88px) var(--gutter) 40px;
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 28px;
  flex-wrap: wrap;
}
.footer__mark {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(1.4rem, 3vw, 2.1rem);
}
.footer__line { color: var(--ink-mute); margin: 10px 0 0; }
.footer__contact {
  margin: 0;
  font-family: var(--font-display);
  font-size: 1rem;
  color: var(--ink-soft);
  letter-spacing: -0.01em;
}
.footer__base {
  max-width: var(--maxw);
  margin-inline: auto;
  padding: 22px var(--gutter);
  border-top: 1px solid var(--line);
  display: flex;
  justify-content: space-between;
  gap: 16px;
  flex-wrap: wrap;
  font-size: 0.8rem;
  color: var(--ink-mute);
}

/* ---------- Reveal animation ---------- */
.reveal {
  opacity: 0;
  transform: translateY(26px);
  filter: blur(6px);
  transition: opacity 0.9s var(--ease), transform 0.9s var(--ease), filter 0.9s var(--ease);
  transition-delay: calc(var(--d, 0) * 110ms);
}
.reveal.is-in {
  opacity: 1;
  transform: none;
  filter: none;
}

/* ---------- Responsive ---------- */
@media (max-width: 960px) {
  .hero__inner { grid-template-columns: 1fr; }
  .hero__stage { min-height: 300px; margin-top: 12px; }
  .section__grid { grid-template-columns: 1fr; }
  .cards { grid-template-columns: repeat(2, 1fr); }
  .steps { grid-template-columns: repeat(2, 1fr); }
  .step { border-right: none; border-bottom: 1px solid var(--line); }
  .step:nth-child(odd) { border-right: 1px solid var(--line); }
  .ecom__grid { grid-template-columns: repeat(2, 1fr); }
  .cell--wide { grid-column: span 2; }
  .nav__links { display: none; }
}

@media (max-width: 620px) {
  .cards { grid-template-columns: 1fr; }
  .ecom__grid { grid-template-columns: 1fr; }
  .cell--wide { grid-column: span 1; }
  .steps { grid-template-columns: 1fr; }
  .step { border-right: none !important; padding-left: 0; }
  .tokens { grid-template-columns: 1fr; }
  .panel--float { right: 0; width: 160px; }
  .panel--chip { left: 0; }
  .nav__word { display: none; }
  .footer__inner { flex-direction: column; align-items: flex-start; }
}

/* ---------- Reduced motion ---------- */
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .reveal { opacity: 1; transform: none; filter: none; transition: none; }
  .spark { animation: none; transform: none; }
  .bg__halo { filter: blur(80px); }
  *, *::before, *::after {
    animation-duration: 0.001ms !important;
    transition-duration: 0.001ms !important;
  }
}