/* ============================================================
   layout.css — container, header, footer, navigation, marquee
   ============================================================ */

.container {
  width: 100%;
  max-width: var(--container);
  margin: 0 auto;
  padding-inline: var(--gutter);
}

.container--narrow { max-width: var(--container-narrow); }

@media (min-width: 768px) {
  .container { padding-inline: var(--gutter-lg); }
}

.main {
  min-height: 60vh;
}

/* ---------- Marquee ribbon (subtle motion ribbon) ---------- */

.marquee {
  background: var(--text);
  color: var(--bg);
  overflow: hidden;
  border-bottom: 1px solid var(--text);
  font-size: 0.84rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
}

.marquee__track {
  display: inline-flex;
  align-items: center;
  gap: 32px;
  padding: 8px 0;
  white-space: nowrap;
  animation: marquee 38s linear infinite;
  will-change: transform;
}

.marquee__item { display: inline-flex; align-items: center; gap: 14px; }

.marquee__dot {
  width: 6px; height: 6px;
  border-radius: 50%;
  background: var(--clay);
}

@keyframes marquee {
  from { transform: translateX(0); }
  to   { transform: translateX(-12.5%); }
}

@media (prefers-reduced-motion: reduce) {
  .marquee__track { animation: none; }
}

/* ---------- Header ---------- */

.header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: transparent;
}

.header::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: -1;
  background: rgba(244, 239, 230, 0.86);
  border-bottom: 1px solid var(--line);
  backdrop-filter: saturate(140%) blur(12px);
  -webkit-backdrop-filter: saturate(140%) blur(12px);
  transition: background-color var(--dur-2) var(--ease), border-color var(--dur-2) var(--ease);
}

.header.is-scrolled::before {
  background: rgba(244, 239, 230, 0.96);
  border-color: var(--line-soft);
}

.header__inner {
  position: relative;
  height: var(--header-h);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}

/* iOS in-app browsers (Telegram etc.): sticky + backdrop-filter leaves a gap above the bar */
@media (max-width: 959px) {
  .header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    width: 100%;
  }

  .header::before {
    background: var(--bg);
    backdrop-filter: none;
    -webkit-backdrop-filter: none;
  }

  .header.is-scrolled::before {
    background: var(--bg);
  }

  body {
    padding-top: var(--header-h);
  }
}

.header__brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-body);
  font-size: 0.92rem;
  font-weight: 500;
  letter-spacing: 0.01em;
  flex-shrink: 0;
  white-space: nowrap;
}

.header__brand-mark {
  display: inline-block;
  width: 26px; height: 26px;
  border: 1px solid var(--text);
  border-radius: 50%;
  position: relative;
  transition: transform var(--dur-2) var(--ease);
}

.header__brand-mark::after {
  content: "";
  position: absolute;
  inset: 7px;
  border-radius: 50%;
  background: var(--clay);
  transition: background-color var(--dur-2) var(--ease);
}

.header__brand:hover .header__brand-mark { transform: rotate(45deg); }
.header__brand:hover .header__brand-mark::after { background: var(--sage); }

.header__toggle {
  width: 44px; height: 44px;
  display: inline-flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  gap: 5px;
}

.header__toggle-bar {
  display: block;
  width: 22px; height: 1.5px;
  background: var(--text);
  transition: transform var(--dur-2) var(--ease), opacity var(--dur-2) var(--ease);
}

.is-nav-open .header__toggle-bar:nth-child(1) {
  transform: translateY(3px) rotate(45deg);
}
.is-nav-open .header__toggle-bar:nth-child(2) {
  transform: translateY(-3px) rotate(-45deg);
}

/* ---------- Mobile nav (full-screen panel) ---------- */

.nav {
  position: fixed;
  top: var(--header-h);
  left: 0;
  right: 0;
  width: 100vw;
  height: calc(100vh - var(--header-h));
  height: calc(100dvh - var(--header-h));
  z-index: 49;
  background: var(--bg);
  padding: 32px var(--gutter);
  transform: translateY(-12px);
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--dur-2) var(--ease), transform var(--dur-2) var(--ease);
  display: flex;
  flex-direction: column;
  gap: 20px;
  border-bottom: 1px solid var(--line);
  overflow-y: auto;
}

.is-nav-open .nav {
  opacity: 1;
  pointer-events: auto;
  transform: translateY(0);
}

.nav__list {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.nav__item {
  border-bottom: 1px solid var(--line-soft);
}

.nav__link {
  display: inline-flex;
  align-items: center;
  gap: 14px;
  width: 100%;
  padding: 16px 0;
  font-size: 1.4rem;
  font-family: var(--font-display);
  color: var(--text);
  position: relative;
  transition: color var(--dur-1) var(--ease), padding-left var(--dur-2) var(--ease);
}

.nav__link::before {
  content: "";
  width: 0;
  height: 1px;
  background: var(--clay);
  transition: width var(--dur-2) var(--ease);
}

.nav__link:hover,
.nav__link.is-active { color: var(--clay); }
.nav__link:hover::before,
.nav__link.is-active::before { width: 22px; }

@media (min-width: 960px) {
  .header__toggle { display: none; }

  .nav {
    position: static;
    top: auto;
    left: auto;
    right: auto;
    width: auto;
    height: auto;
    background: transparent;
    padding: 0;
    transform: none;
    opacity: 1;
    pointer-events: auto;
    border: 0;
    flex-direction: row;
    align-items: center;
    gap: 28px;
    overflow: visible;
  }

  .nav__list {
    flex-direction: row;
    gap: clamp(12px, 1.6vw, 28px);
    align-items: center;
  }

  .nav__item { border: 0; }

  .nav__link {
    padding: 6px 0;
    font-size: 0.95rem;
    font-family: var(--font-body);
    color: var(--muted);
    width: auto;
    white-space: nowrap;
  }

  .nav__link::before {
    position: absolute;
    left: 0; bottom: 0;
  }

  .nav__link:hover,
  .nav__link.is-active { color: var(--text); }
  .nav__link:hover::before,
  .nav__link.is-active::before { width: 100%; }
}

/* ---------- Language switch ---------- */

.lang {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  font-size: 0.85rem;
  letter-spacing: 0.12em;
  color: var(--muted);
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: 4px;
  margin-top: 12px;
  width: fit-content;
}

.lang__option {
  padding: 6px 12px;
  border-radius: 999px;
  transition: background-color var(--dur-2) var(--ease), color var(--dur-2) var(--ease);
}

.lang__option.is-active {
  background: var(--text);
  color: var(--bg);
}

.lang__sep { display: none; }

@media (min-width: 960px) {
  .lang { margin-top: 0; margin-left: 12px; }
}

/* ---------- Footer ---------- */

.footer {
  margin-top: 0;
  padding: 0 0 32px;
  background: linear-gradient(180deg, var(--surface-2) 0%, var(--surface-3) 100%);
  border-top: 0;
  position: relative;
  overflow: hidden;
}

.footer::before {
  content: "";
  position: absolute;
  top: -60px;
  right: -80px;
  width: 320px;
  height: 320px;
  border-radius: 50%;
  background: radial-gradient(circle, var(--clay-soft) 0%, transparent 65%);
  opacity: 0.4;
  pointer-events: none;
}

.footer__inner {
  display: grid;
  grid-template-columns: 1fr;
  gap: 40px;
  padding-top: 64px;
  padding-bottom: 40px;
  position: relative;
}

.footer__brand {
  font-family: var(--font-display);
  font-size: 1.7rem;
  margin-bottom: 6px;
}

.footer__tag {
  color: var(--muted);
  margin: 0;
  max-width: 32ch;
}

.footer__nav {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.footer__col--contact {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.footer__link {
  color: var(--text-soft);
  display: inline-flex;
  align-items: center;
  gap: 8px;
  transition: color var(--dur-1) var(--ease), transform var(--dur-2) var(--ease);
}

.footer__link:hover {
  color: var(--clay);
  transform: translateX(2px);
}

.footer__bottom {
  border-top: 1px solid var(--line);
  padding-top: 20px;
  color: var(--muted);
  font-size: 0.85rem;
  position: relative;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 8px;
}

.footer__dev {
  font-size: 0.72rem;
  color: var(--muted);
  opacity: 0.45;
  letter-spacing: 0.04em;
  text-decoration: none;
  transition: opacity 0.25s ease;
  white-space: nowrap;
  margin-left: auto;
}

.footer__dev:hover {
  opacity: 0.75;
  color: var(--muted);
}

@media (min-width: 768px) {
  .footer__inner {
    grid-template-columns: 2fr 1fr 1fr;
    gap: 56px;
  }
}