/* ============================================================
   Jibix Groupe — editorial dark, Stripe Press homage
   ============================================================ */

:root {
  --bg: #171210;
  --bg-raise: #1f1916;
  --ink: #f0e7d8;
  --ink-dim: rgba(240, 231, 216, 0.62);
  --ink-faint: rgba(240, 231, 216, 0.38);
  --hairline: rgba(240, 231, 216, 0.14);
  --accent: #c9a961;
  --serif: "Fraunces", "Georgia", serif;
  --sans: "Inter", -apple-system, sans-serif;
  --mono: "IBM Plex Mono", "SFMono-Regular", monospace;
  --max: 1080px;
}

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

html { scroll-behavior: smooth; }

body {
  background: var(--bg);
  color: var(--ink);
  font-family: var(--sans);
  font-size: 16px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  /* faint paper grain */
  background-image: radial-gradient(rgba(240, 231, 216, 0.025) 1px, transparent 1px);
  background-size: 3px 3px;
}

.mono {
  font-family: var(--mono);
  font-size: 0.72rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--ink-faint);
}

h1, h2, h3 { font-family: var(--serif); font-weight: 420; }

::selection { background: var(--accent); color: var(--bg); }

/* ===== Nav ===== */
.nav {
  position: sticky;
  top: 0;
  z-index: 50;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.5rem;
  padding: 1.1rem clamp(1.25rem, 4vw, 3rem);
  background: color-mix(in srgb, var(--bg) 86%, transparent);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--hairline);
}

.nav-brand { display: flex; align-items: center; gap: 0.8rem; text-decoration: none; color: var(--ink); }

.nav-mark {
  display: grid;
  place-items: center;
  width: 2.2rem;
  height: 2.2rem;
  border: 1px solid var(--ink);
  border-radius: 50%;
  font-family: var(--serif);
  font-size: 1.15rem;
  font-style: italic;
}

.nav-name { display: flex; flex-direction: column; line-height: 1.25; }
.nav-name strong { font-family: var(--serif); font-weight: 500; font-size: 1.02rem; }
.nav-name em { font-family: var(--serif); font-size: 0.78rem; color: var(--ink-dim); }

.nav-links { display: flex; gap: 1.6rem; }
.nav-links a {
  color: var(--ink-dim);
  text-decoration: none;
  font-size: 0.85rem;
  transition: color 160ms ease;
}
.nav-links a:hover, .nav-links a:focus-visible { color: var(--ink); }

.lang-toggle { display: flex; align-items: center; gap: 0.35rem; color: var(--ink-faint); }
.lang-toggle button {
  background: none;
  border: none;
  color: var(--ink-faint);
  font-family: var(--mono);
  font-size: 0.78rem;
  letter-spacing: 0.08em;
  cursor: pointer;
  padding: 0.25rem 0.3rem;
  transition: color 160ms ease;
}
.lang-toggle button:hover { color: var(--ink-dim); }
.lang-toggle button.is-active { color: var(--ink); text-decoration: underline; text-underline-offset: 4px; }
.lang-toggle button:focus-visible { outline: 1px solid var(--accent); outline-offset: 2px; }

/* ===== Hero ===== */
.hero {
  max-width: var(--max);
  margin: 0 auto;
  padding: clamp(4rem, 10vh, 7rem) 1.5rem 3rem;
  text-align: center;
}

.hero-kicker { margin-bottom: 1.6rem; }

.hero-title {
  font-size: clamp(2.6rem, 6.5vw, 4.6rem);
  line-height: 1.08;
  letter-spacing: -0.015em;
  font-weight: 380;
}
.hero-title em { font-style: italic; color: var(--accent); }

.hero-sub {
  max-width: 40rem;
  margin: 1.8rem auto 0;
  color: var(--ink-dim);
  font-size: 1.02rem;
}

/* ===== Product stack ===== */
.stack-scene {
  margin-top: clamp(3rem, 7vh, 5rem);
  perspective: 1200px;
}

.stack {
  display: flex;
  flex-direction: column;
  align-items: center;
  transform: rotateX(14deg);
  transform-style: preserve-3d;
}

.spine {
  --w: 600px;
  --c: #555;
  width: min(var(--w), 94%);
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  align-items: center;
  gap: 1rem;
  padding: 1.05rem 1.4rem;
  background:
    linear-gradient(180deg, rgba(255,255,255,0.13), rgba(0,0,0,0.22)),
    var(--c);
  border: none;
  border-radius: 3px 3px 0 0;
  box-shadow:
    0 -1px 0 rgba(255,255,255,0.12) inset,
    0 14px 24px -12px rgba(0,0,0,0.65);
  color: var(--ink);
  text-decoration: none;
  cursor: pointer;
  transition: transform 220ms cubic-bezier(.2,.9,.3,1.2), filter 220ms ease;
}

.spine + .spine { margin-top: 2px; }

.spine:hover, .spine:focus-visible {
  transform: translateY(-7px) translateZ(24px);
  filter: brightness(1.14);
  z-index: 2;
}
.spine:focus-visible { outline: 2px solid var(--ink); outline-offset: 3px; }

.spine-author { justify-self: start; color: rgba(240,231,216,0.66); font-size: 0.62rem; }
.spine-title { font-family: var(--serif); font-size: 1.06rem; letter-spacing: 0.01em; white-space: nowrap; }
.spine-mark { justify-self: end; font-size: 0.6rem; opacity: 0.55; }

.stack-hint { margin-top: 1.6rem; }

/* ===== Manifesto ===== */
.manifesto {
  border-top: 1px solid var(--hairline);
  border-bottom: 1px solid var(--hairline);
  margin-top: 4rem;
  padding: clamp(3.5rem, 8vh, 5.5rem) 1.5rem;
}

.manifesto-line {
  max-width: 46rem;
  margin: 0 auto;
  font-family: var(--serif);
  font-size: clamp(1.3rem, 2.6vw, 1.75rem);
  line-height: 1.5;
  font-style: italic;
  color: var(--ink);
  text-align: center;
}

/* ===== Sections ===== */
.section {
  max-width: var(--max);
  margin: 0 auto;
  padding: clamp(4rem, 9vh, 6.5rem) 1.5rem 2rem;
}

.section-head { max-width: 44rem; margin-bottom: 3rem; }
.section-no { display: block; margin-bottom: 0.9rem; color: var(--accent); }
.section-head h2 {
  font-size: clamp(1.9rem, 4vw, 2.7rem);
  line-height: 1.15;
  margin-bottom: 0.9rem;
}
.section-head p { color: var(--ink-dim); }

/* ===== Subsidiaries ===== */
.subs-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 1px;
  background: var(--hairline);
  border: 1px solid var(--hairline);
}

.sub-card {
  background: var(--bg);
  padding: 2rem 1.75rem 1.75rem;
  display: flex;
  flex-direction: column;
  gap: 0.8rem;
  transition: background 200ms ease;
}
.sub-card:hover { background: var(--bg-raise); }
.sub-card h3 { font-size: 1.45rem; }
.sub-card p { color: var(--ink-dim); font-size: 0.92rem; flex: 1; }
.sub-flag { font-size: 0.72rem; }
.sub-city { color: var(--accent); }

/* ===== Services ===== */
.svc-list { list-style: none; border-top: 1px solid var(--hairline); }

.svc-item {
  display: grid;
  grid-template-columns: 4rem 1fr;
  gap: 1rem;
  padding: 1.9rem 0.25rem;
  border-bottom: 1px solid var(--hairline);
  transition: background 200ms ease;
}
.svc-item:hover { background: var(--bg-raise); }
.svc-no { font-size: 1rem; color: var(--accent); padding-top: 0.35rem; }
.svc-item h3 { font-size: 1.3rem; margin-bottom: 0.4rem; }
.svc-item p { color: var(--ink-dim); font-size: 0.93rem; max-width: 40rem; }

/* ===== Products ===== */
.prod-list { display: flex; flex-direction: column; gap: 1.1rem; }

.prod-row {
  display: grid;
  grid-template-columns: 10px 1fr;
  border: 1px solid var(--hairline);
  border-radius: 4px;
  overflow: hidden;
  scroll-margin-top: 6rem;
  transition: transform 200ms ease, border-color 200ms ease;
}
.prod-row:hover { transform: translateX(4px); border-color: color-mix(in srgb, var(--c) 60%, var(--hairline)); }

.prod-spinecap { background: linear-gradient(180deg, rgba(255,255,255,0.15), rgba(0,0,0,0.2)), var(--c); }

.prod-body { padding: 1.5rem 1.75rem; }
.prod-body header {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 1rem;
  flex-wrap: wrap;
  margin-bottom: 0.5rem;
}
.prod-body h3 { font-size: 1.4rem; }
.prod-tag { color: color-mix(in srgb, var(--c) 55%, var(--ink)); }
.prod-body p { color: var(--ink-dim); font-size: 0.93rem; max-width: 46rem; }

/* ===== Academy ===== */
.acad-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 2.5rem;
  border-top: 1px solid var(--hairline);
  padding-top: 2.5rem;
}
.acad-col h4 { margin-bottom: 1rem; color: var(--accent); }
.acad-col ul { list-style: none; display: flex; flex-direction: column; gap: 0.55rem; }
.acad-col ul li { color: var(--ink-dim); font-size: 0.95rem; }
.acad-tags { flex-direction: row !important; flex-wrap: wrap; gap: 0.5rem !important; }
.acad-tags li {
  border: 1px solid var(--hairline);
  border-radius: 999px;
  padding: 0.3rem 0.8rem;
  font-size: 0.72rem !important;
  color: var(--ink-dim);
}

/* ===== Investors ===== */
.investors { padding-bottom: clamp(4rem, 9vh, 6.5rem); }

.inv-stats {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
  gap: 1px;
  background: var(--hairline);
  border: 1px solid var(--hairline);
  margin-bottom: 2.6rem;
}
.stat {
  background: var(--bg);
  padding: 1.8rem 1.5rem;
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
}
.stat strong { font-family: var(--serif); font-size: 2.6rem; font-weight: 380; color: var(--accent); line-height: 1; }

.inv-note {
  font-family: var(--serif);
  font-size: clamp(1.15rem, 2.2vw, 1.45rem);
  line-height: 1.55;
  max-width: 44rem;
  margin-bottom: 2.4rem;
}

.inv-cta {
  display: inline-flex;
  align-items: center;
  gap: 0.8rem;
  color: var(--bg);
  background: var(--ink);
  text-decoration: none;
  font-size: 0.95rem;
  font-weight: 500;
  padding: 0.95rem 1.6rem;
  border-radius: 999px;
  transition: background 180ms ease, transform 180ms ease;
}
.inv-cta:hover { background: var(--accent); transform: translateY(-2px); }
.inv-cta:focus-visible { outline: 2px solid var(--accent); outline-offset: 3px; }

/* ===== Footer ===== */
.footer {
  border-top: 1px solid var(--hairline);
  padding: 3.5rem clamp(1.25rem, 4vw, 3rem) 2rem;
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 2.5rem;
}

.footer-brand { display: flex; gap: 0.9rem; align-items: flex-start; }
.footer-brand strong { font-family: var(--serif); font-size: 1.05rem; }
.footer-brand p { margin-top: 0.3rem; }

.footer-cols { display: flex; gap: clamp(2rem, 6vw, 5rem); flex-wrap: wrap; }
.footer-cols h5 { margin-bottom: 0.9rem; color: var(--accent); }
.footer-cols a {
  display: block;
  color: var(--ink-dim);
  text-decoration: none;
  font-size: 0.88rem;
  margin-bottom: 0.5rem;
  transition: color 150ms ease;
}
.footer-cols a:hover { color: var(--ink); }

.footer-fine { grid-column: 1 / -1; padding-top: 2rem; border-top: 1px solid var(--hairline); }

/* ===== Reveal on scroll ===== */
.reveal { opacity: 0; transform: translateY(18px); transition: opacity 600ms ease, transform 600ms ease; }
.reveal.is-in { opacity: 1; transform: none; }

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .reveal { opacity: 1; transform: none; transition: none; }
  .spine, .prod-row, .inv-cta { transition: none; }
}

/* ===== Responsive ===== */
@media (max-width: 720px) {
  .nav-links { display: none; }
  .footer { grid-template-columns: 1fr; }
}

@media (max-width: 560px) {
  .spine { grid-template-columns: 1fr auto; padding: 0.85rem 1rem; }
  .spine-author { display: none; }
  .stack { transform: rotateX(10deg); }
}