/* BAMBOO layout: loader, header, menu, footer */

/* ---------- Loader ---------- */
.loader {
  position: fixed; inset: 0; z-index: 1000;
  display: grid; place-items: center;
  background: var(--c-bg);
  transition: transform 1s var(--ease-in-out);
  /* Safety net: hides itself even if JavaScript fails */
  animation: loaderFailsafe 0.01s 5s forwards;
}
.loader.is-done { transform: translateY(-100%); }
.loader__inner { display: grid; justify-items: center; gap: 36px; }
.loader__logo {
  display: flex; align-items: center; gap: 18px; color: var(--c-accent);
  animation: loaderIn 1.1s var(--ease-out) both;
}
.loader .logo-mark { width: 84px; height: 84px; }
.loader .logo-word { font-size: clamp(1.6rem, 4vw, 2.4rem); }
.loader__bar { width: min(220px, 50vw); height: 1px; background: var(--c-line); overflow: hidden; }
.loader__bar span {
  display: block; height: 100%; background: var(--c-accent);
  transform: scaleX(0); transform-origin: left;
  animation: loaderBar 1.4s var(--ease-in-out) 0.2s forwards;
}
.seen-loader .loader { display: none; }

@keyframes loaderIn { from { opacity: 0; transform: translateY(20px) scale(0.96); } to { opacity: 1; transform: none; } }
@keyframes loaderBar { to { transform: scaleX(1); } }
@keyframes loaderFailsafe { to { visibility: hidden; pointer-events: none; } }

/* ---------- Logo ---------- */
.brand { display: inline-flex; align-items: center; gap: 14px; color: var(--c-accent); }
.logo-mark { width: 44px; height: 44px; flex: none; color: var(--c-accent); }
.logo-word {
  font-family: var(--font-heading); font-weight: 600;
  font-size: 1.65rem; letter-spacing: 0.32em; text-transform: uppercase;
  color: var(--c-accent); line-height: 1;
}
.logo-img { height: 44px; width: auto; }

/* ---------- Header ---------- */
.site-header {
  position: fixed; inset: 0 0 auto 0; z-index: 100; height: var(--header-h);
  border-bottom: 1px solid transparent;
  transition: transform 0.6s var(--ease-out), background 0.5s, border-color 0.5s;
}
.site-header.is-scrolled {
  background: rgba(10, 10, 10, 0.8);
  -webkit-backdrop-filter: blur(16px); backdrop-filter: blur(16px);
  border-bottom-color: var(--c-line);
}
.site-header.is-hidden { transform: translateY(-100%); }
.site-header__inner {
  height: 100%; padding-inline: var(--gutter);
  display: flex; align-items: center; justify-content: space-between; gap: 24px;
}

.main-nav ul { display: flex; gap: clamp(16px, 2.2vw, 38px); }
.main-nav a {
  position: relative; display: inline-block; padding: 8px 0;
  font-size: 0.74rem; font-weight: 500; letter-spacing: 0.2em; text-transform: uppercase;
}
.main-nav a::after {
  content: ''; position: absolute; left: 0; bottom: 2px; width: 100%; height: 1px;
  background: var(--c-accent);
  transform: scaleX(0); transform-origin: right;
  transition: transform 0.5s var(--ease-out);
}
.main-nav a:hover::after, .main-nav a:focus-visible::after { transform: scaleX(1); transform-origin: left; }
.main-nav a[aria-current='page'] { color: var(--c-accent); }
.main-nav a[aria-current='page']::after { transform: scaleX(1); }

.header-tools { display: flex; align-items: center; gap: 22px; }

/* Language selector */
.lang { position: relative; }
.lang__btn {
  display: inline-flex; align-items: center; gap: 8px; padding: 8px 4px;
  font-size: 0.74rem; font-weight: 600; letter-spacing: 0.2em;
}
.lang__btn svg { transition: transform 0.4s var(--ease-out); }
.lang.is-open .lang__btn svg { transform: rotate(180deg); }
.lang__list {
  position: absolute; right: 0; top: calc(100% + 12px); min-width: 180px; padding: 8px;
  background: var(--c-surface); border: 1px solid var(--c-line);
  opacity: 0; visibility: hidden; transform: translateY(-8px);
  transition: opacity 0.3s, transform 0.4s var(--ease-out), visibility 0.3s;
}
.lang.is-open .lang__list { opacity: 1; visibility: visible; transform: none; }
.lang__list a {
  display: flex; align-items: center; gap: 12px; padding: 10px 14px;
  font-size: 0.9rem; transition: background 0.3s, color 0.3s;
}
.lang__list a:hover, .lang__list a:focus-visible { background: var(--c-surface-2); color: var(--c-accent); }
.lang__list a[aria-current='true'] { color: var(--c-accent); }
.lang__short { width: 24px; font-size: 0.7rem; font-weight: 600; letter-spacing: 0.15em; color: var(--c-muted); }

/* Selection link and badge */
.tool-link { position: relative; display: grid; place-items: center; padding: 6px; transition: color 0.3s; }
.tool-link:hover, .tool-link:focus-visible { color: var(--c-accent); }
.badge {
  position: absolute; top: -4px; right: -6px; min-width: 18px; height: 18px; padding: 0 5px;
  display: grid; place-items: center; border-radius: 9px;
  background: var(--c-accent); color: #0a0a0a; font-size: 0.65rem; font-weight: 700;
}
.badge[hidden] { display: none; }

/* Burger */
.burger { display: none; position: relative; width: 36px; height: 36px; }
.burger span {
  position: absolute; left: 6px; right: 6px; height: 1.5px; background: currentColor;
  transition: transform 0.5s var(--ease-out), top 0.5s var(--ease-out);
}
.burger span:nth-child(1) { top: 13px; }
.burger span:nth-child(2) { top: 21px; }
.burger[aria-expanded='true'] span:nth-child(1) { top: 17px; transform: rotate(45deg); }
.burger[aria-expanded='true'] span:nth-child(2) { top: 17px; transform: rotate(-45deg); }

/* ---------- Mobile menu ---------- */
.mobile-menu {
  position: fixed; inset: 0; z-index: 90;
  display: flex; flex-direction: column; justify-content: space-between;
  padding: calc(var(--header-h) + 24px) var(--gutter) 40px;
  background: var(--c-bg);
  clip-path: inset(0 0 100% 0); visibility: hidden;
  transition: clip-path 0.9s var(--ease-in-out), visibility 0s 0.9s;
}
.mobile-menu.is-open { clip-path: inset(0); visibility: visible; transition: clip-path 0.9s var(--ease-in-out), visibility 0s; }
.mobile-menu__nav li {
  opacity: 0; transform: translateY(30px);
  transition: opacity 0.6s var(--ease-out), transform 0.8s var(--ease-out);
}
.mobile-menu.is-open .mobile-menu__nav li {
  opacity: 1; transform: none;
  transition-delay: calc(var(--i) * 60ms + 300ms);
}
.mobile-menu__nav a {
  display: block; padding: 6px 0;
  font-family: var(--font-heading); font-size: clamp(2.1rem, 9vw, 3.6rem); line-height: 1.15;
  transition: color 0.3s, padding-left 0.5s var(--ease-out);
}
.mobile-menu__nav a:hover, .mobile-menu__nav a:focus-visible { color: var(--c-accent); padding-left: 14px; }
.mobile-menu__foot { display: flex; gap: 24px; flex-wrap: wrap; font-size: 0.9rem; color: var(--c-muted); }
.mobile-menu__foot a[aria-current='true'] { color: var(--c-accent); }
body.menu-open { overflow: hidden; }

/* ---------- Footer ---------- */
.site-footer { background: var(--c-surface); border-top: 1px solid var(--c-line); margin-top: var(--section-space); }
.site-footer__grid {
  display: grid; grid-template-columns: 1.6fr 1fr 1fr 1.4fr; gap: clamp(32px, 5vw, 80px);
  padding-block: clamp(56px, 8vw, 110px);
}
.footer-tagline { margin: 1.6em 0 0.6em; font-family: var(--font-heading); font-size: 1.7rem; line-height: 1.2; color: var(--c-cream); }
.footer-text { color: var(--c-muted); max-width: 40ch; }
.footer-title {
  margin: 0 0 1.4em; font-family: var(--font-body);
  font-size: 0.72rem; font-weight: 600; letter-spacing: 0.28em; text-transform: uppercase; color: var(--c-accent);
}
.footer-title--spaced { margin-top: 2.4em; }
.site-footer li { margin-bottom: 0.7em; color: var(--c-beige); }
.site-footer li a { transition: color 0.3s; }
.site-footer li a:hover, .site-footer li a:focus-visible { color: var(--c-accent); }
.footer-label { font-size: 0.75rem; letter-spacing: 0.15em; text-transform: uppercase; color: var(--c-muted); }
.footer-social { display: flex; flex-wrap: wrap; gap: 8px 22px; }
.site-footer__bar {
  display: flex; flex-wrap: wrap; gap: 12px 32px; align-items: center; justify-content: space-between;
  padding-block: 26px; border-top: 1px solid var(--c-line);
  font-size: 0.82rem; color: var(--c-muted);
}
.site-footer__bar ul { display: flex; flex-wrap: wrap; gap: 8px 24px; }
.site-footer__bar li { margin: 0; color: inherit; }

/* ---------- Simple page top (placeholders and error pages) ---------- */
.page-top { padding-top: calc(var(--header-h) + clamp(60px, 10vw, 140px)); min-height: 70vh; }

/* ---------- Responsive ---------- */
@media (max-width: 1100px) {
  .main-nav { display: none; }
  .burger { display: block; }
  .site-footer__grid { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 640px) {
  :root { --header-h: 72px; }
  .logo-mark { width: 38px; height: 38px; }
  .logo-word { font-size: 1.3rem; letter-spacing: 0.26em; }
  .site-footer__grid { grid-template-columns: 1fr; }
}