/* ============================================================
   SPLĀN space — Base / Reset / Shared
   ============================================================ */

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

html {
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: var(--font-body);
  font-weight: var(--w-reg);
  font-size: var(--fs-body);
  line-height: 1.6;
  color: var(--ink);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}

img, svg, video, canvas { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }
button { font: inherit; cursor: pointer; border: none; background: none; color: inherit; }
ul { list-style: none; }

/* ---- Type primitives ---- */
.display {
  font-family: var(--font-display);
  letter-spacing: var(--ls-tight);
  line-height: 1.02;
  font-weight: var(--w-med);
}

.eyebrow {
  font-family: var(--font-display);
  font-size: var(--fs-eyebrow);
  font-weight: var(--w-med);
  letter-spacing: var(--ls-eyebrow);
  text-transform: uppercase;
  color: var(--ink-faint);
  display: inline-flex;
  align-items: center;
  gap: 0.85em;
}
.eyebrow::before {
  content: "";
  width: 28px;
  height: 1px;
  background: var(--ink-faint);
  display: inline-block;
}
.eyebrow--accent { color: var(--accent-from); }
.eyebrow--accent::before { background: var(--accent-grad); width: 28px; }
.eyebrow--on-dark { color: var(--ink-on-dark-soft); }
.eyebrow--on-dark::before { background: var(--ink-on-dark-soft); }

.lead {
  font-size: var(--fs-lead);
  line-height: 1.55;
  color: var(--ink-soft);
  font-weight: var(--w-light);
}

/* Gradient text accent */
.grad-text {
  background: var(--accent-grad);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  color: transparent;
}

/* ---- Layout helpers ---- */
.wrap { max-width: var(--maxw); margin-inline: auto; padding-inline: var(--gutter); }
.wrap--narrow { max-width: var(--maxw-narrow); }
.section { padding-block: clamp(var(--s-20), 12vw, var(--s-40)); }

/* ---- Buttons / links ---- */
.btn {
  font-family: var(--font-display);
  font-size: var(--fs-small);
  font-weight: var(--w-med);
  letter-spacing: var(--ls-wide);
  display: inline-flex;
  align-items: center;
  gap: 0.7em;
  padding: 0.95em 1.6em;
  border-radius: var(--radius);
  transition: all var(--dur-fast) var(--ease-out);
  white-space: nowrap;
}
.btn svg { transition: transform var(--dur-fast) var(--ease-out); width: 18px; height: 18px; }
.btn:hover svg { transform: translateX(4px); }

.btn--primary {
  background: var(--carbon);
  color: var(--white);
}
.btn--primary:hover { background: #1f1f24; }

.btn--ghost {
  color: var(--ink);
  padding-left: 0;
}
.btn--ghost::after {
  content: "";
  position: absolute;
}

/* Underline-reveal text link */
.link-line {
  font-family: var(--font-display);
  font-size: var(--fs-small);
  font-weight: var(--w-med);
  letter-spacing: var(--ls-wide);
  display: inline-flex;
  align-items: center;
  gap: 0.7em;
  position: relative;
  padding-bottom: 4px;
}
.link-line::after {
  content: "";
  position: absolute;
  left: 0; bottom: 0;
  width: 100%; height: 1px;
  background: currentColor;
  transform: scaleX(0);
  transform-origin: left;
  transition: transform var(--dur-med) var(--ease-out);
}
.link-line:hover::after { transform: scaleX(1); }
.link-line svg { width: 16px; height: 16px; transition: transform var(--dur-fast) var(--ease-out); }
.link-line:hover svg { transform: translateX(4px); }

/* ---- Scroll reveal base ---- */
[data-reveal] {
  opacity: 0;
  transform: translateY(28px);
  transition: opacity var(--dur-slow) var(--ease-out),
              transform var(--dur-slow) var(--ease-out);
  will-change: opacity, transform;
}
[data-reveal].is-in { opacity: 1; transform: none; }
[data-reveal-delay="1"] { transition-delay: 0.08s; }
[data-reveal-delay="2"] { transition-delay: 0.16s; }
[data-reveal-delay="3"] { transition-delay: 0.24s; }
[data-reveal-delay="4"] { transition-delay: 0.32s; }

/* ============================================================
   HEADER
   ============================================================ */
.site-header {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  padding-block: var(--s-6);
  transition: padding var(--dur-fast) var(--ease-out),
              background var(--dur-fast) var(--ease-out),
              border-color var(--dur-fast) var(--ease-out);
  border-bottom: 1px solid transparent;
}
.site-header.is-scrolled {
  padding-block: var(--s-3);
  background: rgba(251,251,252,0.72);
  backdrop-filter: blur(18px) saturate(1.4);
  -webkit-backdrop-filter: blur(18px) saturate(1.4);
  border-bottom-color: var(--line);
}
.header-inner {
  max-width: var(--maxw);
  margin-inline: auto;
  padding-inline: var(--gutter);
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.brand { display: inline-flex; align-items: baseline; gap: 0.5em; }
.brand-logo { height: 22px; width: auto; }
.brand-suffix {
  font-family: var(--font-body);
  font-weight: var(--w-light);
  font-size: 0.7rem;
  letter-spacing: 0.35em;
  text-transform: uppercase;
  color: var(--ink-faint);
}
.nav { display: flex; align-items: center; gap: var(--s-12); }
.nav-links { display: flex; gap: var(--s-8); }
.nav-links a {
  font-family: var(--font-display);
  font-size: var(--fs-small);
  font-weight: var(--w-med);
  letter-spacing: var(--ls-wide);
  color: var(--ink-soft);
  position: relative;
  padding-block: 4px;
  transition: color var(--dur-fast) var(--ease-out);
}
.nav-links a::after {
  content: "";
  position: absolute;
  left: 0; bottom: 0;
  width: 100%; height: 1px;
  background: var(--accent-grad);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform var(--dur-med) var(--ease-out);
}
.nav-links a:hover { color: var(--ink); }
.nav-links a:hover::after,
.nav-links a[aria-current="page"]::after { transform: scaleX(1); }

.nav-meta { display: flex; align-items: center; gap: var(--s-6); }

/* Language switch */
.lang-switch {
  display: inline-flex;
  align-items: center;
  font-family: var(--font-display);
  font-size: var(--fs-small);
  font-weight: var(--w-med);
  letter-spacing: var(--ls-wide);
  gap: 0.4em;
}
.lang-switch a { color: var(--ink-faint); transition: color var(--dur-fast) var(--ease-out); }
.lang-switch a[aria-current="true"] { color: var(--ink); }
.lang-switch a:hover { color: var(--accent-from); }
.lang-switch .sep { color: var(--line-strong); }

/* Mobile nav toggle */
.nav-toggle { display: none; width: 28px; height: 18px; position: relative; z-index: 110; }
.nav-toggle span {
  position: absolute; left: 0; height: 1.5px; width: 100%;
  background: var(--ink); transition: all var(--dur-fast) var(--ease-out);
}
.nav-toggle span:nth-child(1) { top: 0; }
.nav-toggle span:nth-child(2) { top: 50%; transform: translateY(-50%); }
.nav-toggle span:nth-child(3) { bottom: 0; }
body.nav-open .nav-toggle span:nth-child(1) { top: 50%; transform: translateY(-50%) rotate(45deg); }
body.nav-open .nav-toggle span:nth-child(2) { opacity: 0; }
body.nav-open .nav-toggle span:nth-child(3) { bottom: 50%; transform: translateY(50%) rotate(-45deg); }

/* ============================================================
   FOOTER
   ============================================================ */
.site-footer {
  background: var(--bg-inverse);
  color: var(--ink-on-dark);
  padding-block: var(--s-28) var(--s-12);
}
.footer-top {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr;
  gap: var(--s-16);
  padding-bottom: var(--s-20);
  border-bottom: 1px solid var(--line-on-dark);
}
.footer-brand-logo { height: 26px; margin-bottom: var(--s-6); }
.footer-tagline {
  font-size: var(--fs-lead);
  font-weight: var(--w-light);
  color: var(--ink-on-dark-soft);
  max-width: 34ch;
  line-height: 1.5;
}
.footer-col h4 {
  font-family: var(--font-display);
  font-size: var(--fs-eyebrow);
  font-weight: var(--w-med);
  letter-spacing: var(--ls-eyebrow);
  text-transform: uppercase;
  color: var(--ink-on-dark-soft);
  margin-bottom: var(--s-6);
}
.footer-col ul { display: flex; flex-direction: column; gap: var(--s-3); }
.footer-col a {
  color: var(--ink-on-dark);
  font-size: var(--fs-body);
  transition: color var(--dur-fast) var(--ease-out);
}
.footer-col a:hover { color: var(--accent-to); }
.footer-bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-top: var(--s-8);
  flex-wrap: wrap;
  gap: var(--s-4);
}
.footer-bottom p { font-size: var(--fs-small); color: var(--ink-on-dark-soft); }
.footer-locale { font-size: var(--fs-small); color: var(--ink-on-dark-soft); letter-spacing: var(--ls-wide); }

/* ============================================================
   RESPONSIVE — header/footer
   ============================================================ */
@media (max-width: 900px) {
  .nav-links {
    position: fixed;
    inset: 0;
    background: var(--bg-elevated);
    flex-direction: column;
    justify-content: center;
    align-items: center;
    gap: var(--s-8);
    transform: translateX(100%);
    transition: transform var(--dur-med) var(--ease-inout);
    z-index: 105;
  }
  body.nav-open .nav-links { transform: translateX(0); }
  .nav-links a { font-size: 1.6rem; }
  .nav-toggle { display: block; }
  .nav-meta .lang-switch { z-index: 110; }

  .footer-top { grid-template-columns: 1fr; gap: var(--s-12); }
}

/* ============================================================
   ACCESSIBILITY
   ============================================================ */
:focus-visible {
  outline: 2px solid var(--accent-from);
  outline-offset: 3px;
}
.skip-link {
  position: absolute; left: -999px;
  background: var(--carbon); color: var(--white);
  padding: 0.8em 1.2em; z-index: 200;
  font-family: var(--font-display); font-size: var(--fs-small);
}
.skip-link:focus { left: var(--gutter); top: var(--s-4); }

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
  [data-reveal] { opacity: 1 !important; transform: none !important; }
}