/* Header / footer chrome — scope under .site-* to avoid clashes with steel-ui .btn etc. */

:root {
  /* Chrome nav: stack below this width when enhanced with JS; aligns with site-nav.js matchMedia */
  --site-nav-breakpoint: 48rem;
}

/* ---- Skip link ---- */
.site-skip-link {
  position: absolute;
  left: 0.75rem;
  top: 0.75rem;
  z-index: 100;
  padding: 0.5rem 1rem;
  background: var(--bg-elevated);
  color: var(--text);
  font-weight: 600;
  text-decoration: none;
  border-radius: var(--radius-sm);
  box-shadow: var(--shadow-card);
  transform: translateY(-120%);
  transition: transform var(--transition);
}

.site-skip-link:focus {
  transform: translateY(0);
  outline: 2px solid var(--border-focus);
  outline-offset: 2px;
}

@media (prefers-reduced-motion: reduce) {
  .site-skip-link {
    transition: none;
  }
}

/* ---- Header shell ---- */
.site-header {
  position: relative;
  background: var(--bg-header);
  border-bottom: 1px solid var(--border-card);
}

.site-header__inner {
  max-width: 72rem;
  margin: 0 auto;
  padding: 1rem 1.25rem;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 1rem;
}

.site-header__brand {
  flex: 1 1 auto;
  min-width: 0;
}

.site-header__tools {
  display: flex;
  flex-shrink: 0;
  align-items: center;
  gap: 0.75rem;
}

/* Brand mark — same assets as app (`public/img/logo-*.webp`); sync when regenerating logos */
.site-logo {
  display: inline-flex;
  align-items: center;
  gap: 0.65rem;
  line-height: 1;
  text-decoration: none;
  border-radius: var(--radius-sm);
}

.site-logo:focus-visible {
  outline: 2px solid var(--border-focus);
  outline-offset: 3px;
}

.site-logo__img {
  display: block;
  height: 2.25rem;
  width: auto;
  object-fit: contain;
}

@media (min-width: 48rem) {
  .site-logo__img {
    height: 2.5rem;
  }
}

/* Wordmark: STEEL A (metallic gray) + I (deep red slab) — pairs with mark; Orbitron / Roboto Slab */
.site-logo__wordmark {
  display: inline-flex;
  align-items: baseline;
  font-family: "Orbitron", var(--font);
  font-weight: 700;
  font-size: clamp(0.8125rem, 2.4vw, 1.05rem);
  letter-spacing: 0.14em;
  text-transform: uppercase;
  white-space: nowrap;
}

.site-logo__steel {
  color: #b0b0b0;
  text-shadow: 0 1px 0 rgba(0, 0, 0, 0.45);
}

.site-logo__accent-i {
  margin-left: 0.02em;
  font-family: "Roboto Slab", Georgia, serif;
  font-weight: 700;
  font-size: 1.05em;
  letter-spacing: 0.06em;
  color: #a32638;
  text-shadow: 0 1px 2px rgba(0, 0, 0, 0.35);
}

@media (max-width: 22rem) {
  .site-logo__wordmark {
    display: none;
  }
}

/* Hamburger: hidden until html.site-nav-js + narrow viewport (see below) */
.site-nav__toggle {
  display: none;
  align-items: center;
  justify-content: center;
  width: 2.5rem;
  height: 2.5rem;
  padding: 0;
  margin: 0;
  border: 1px solid var(--border-card);
  border-radius: var(--radius-sm);
  background: var(--bg-card);
  color: var(--text);
  cursor: pointer;
  transition: background var(--transition), border-color var(--transition);
}

.site-nav__toggle:hover {
  background: var(--bg-card-hover);
}

.site-nav__toggle:focus-visible {
  outline: 2px solid var(--border-focus);
  outline-offset: 3px;
}

/* Three-line icon (single element + box-shadow) */
.site-nav__toggle-bars {
  display: block;
  width: 1.125rem;
  height: 2px;
  background: currentColor;
  border-radius: 1px;
  box-shadow: 0 6px 0 currentColor, 0 -6px 0 currentColor;
}

.site-header__cta {
  margin: 0;
}

.site-nav__list {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem 1.25rem;
  list-style: none;
  margin: 0;
  padding: 0;
}

.site-nav__link {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
}

.site-nav__icon {
  display: inline-flex;
  flex-shrink: 0;
  opacity: 0.72;
  color: inherit;
}

.site-nav__svg {
  display: block;
}

.site-nav a:hover .site-nav__icon,
.site-nav a[aria-current="page"] .site-nav__icon {
  opacity: 0.95;
}

.site-nav a {
  color: var(--text-ui);
  text-decoration: none;
  border-radius: var(--radius-sm);
  transition: color var(--transition);
}

.site-nav a:hover {
  color: var(--accent-hover);
}

.site-nav a:focus-visible {
  outline: 2px solid var(--border-focus);
  outline-offset: 3px;
  color: var(--accent-hover);
}

.site-nav a[aria-current="page"] {
  color: var(--accent-hover);
  font-weight: 600;
}

/* Mobile: center nav chips + thin gradient underline (Train-by-goal style, lighter) */
@media (max-width: 47.99em) {
  .site-nav__list {
    justify-content: center;
  }

  .site-nav a.site-nav__link {
    padding: 0.42rem 0.72rem 0.52rem;
    background: rgba(255, 255, 255, 0.045);
    border-radius: var(--radius-md);
    position: relative;
    transition:
      background var(--transition),
      box-shadow var(--transition),
      color var(--transition);
  }

  .site-nav a.site-nav__link::after {
    content: "";
    position: absolute;
    left: 50%;
    bottom: 0.28rem;
    transform: translateX(-50%);
    width: min(5.75rem, 78%);
    height: 1px;
    border-radius: 1px;
    pointer-events: none;
    background: linear-gradient(
      90deg,
      transparent,
      rgba(196, 165, 116, 0.35),
      rgba(196, 165, 116, 0.65),
      var(--accent),
      rgba(196, 165, 116, 0.65),
      rgba(196, 165, 116, 0.35),
      transparent
    );
    box-shadow: 0 0 14px rgba(196, 165, 116, 0.12);
    opacity: 0.88;
    transition: opacity var(--transition), height 0.15s ease;
  }

  .site-nav a.site-nav__link:hover,
  .site-nav a.site-nav__link:focus-visible {
    background: rgba(255, 255, 255, 0.07);
    box-shadow: 0 0 0 1px rgba(196, 165, 116, 0.22);
  }

  .site-nav a.site-nav__link:hover::after,
  .site-nav a.site-nav__link:focus-visible::after {
    opacity: 1;
    height: 2px;
    bottom: 0.24rem;
  }

  .site-nav a[aria-current="page"].site-nav__link {
    background: rgba(196, 165, 116, 0.09);
    box-shadow: 0 0 0 1px rgba(196, 165, 116, 0.35);
  }

  .site-nav a[aria-current="page"].site-nav__link::after {
    opacity: 1;
    height: 2px;
  }
}

.site-footer a[aria-current="page"] {
  color: var(--accent-hover);
  font-weight: 600;
}

/* ---- Narrow: nav full width below tools (no-JS: always visible stacked) ---- */
.site-nav {
  flex: 1 1 100%;
  width: 100%;
  padding-top: 0.25rem;
}

/* ---- Desktop: one row logo | nav | tools (DOM is brand, tools, nav — reorder) ---- */
@media (min-width: 48rem) {
  .site-header__inner {
    flex-wrap: nowrap;
    align-items: center;
  }

  .site-header__brand {
    flex: 0 0 auto;
    order: 1;
  }

  .site-nav {
    order: 2;
    flex: 1 1 auto;
    width: auto;
    padding-top: 0;
    min-width: 0;
  }

  .site-header__tools {
    order: 3;
    flex: 0 0 auto;
    margin-left: auto;
  }

  .site-nav__list {
    justify-content: center;
  }

  .site-nav a.site-nav__link {
    padding: 0;
    background: transparent;
    box-shadow: none;
  }

  .site-nav a.site-nav__link::after {
    content: none;
  }

  .site-nav__toggle {
    display: none !important;
  }

  html.site-nav-js .site-nav {
    display: block !important;
  }
}

/* ---- Mobile + JS: collapsible nav; toggle visible ---- */
@media (max-width: 47.99em) {
  html.site-nav-js .site-nav__toggle {
    display: inline-flex;
  }

  html.site-nav-js .site-nav:not(.is-open) {
    display: none;
  }

  html.site-nav-js .site-nav.is-open {
    display: block;
  }

  @media (prefers-reduced-motion: no-preference) {
    html.site-nav-js .site-nav.is-open {
      animation: site-nav-fade-in 0.15s ease-out;
    }
  }
}

@keyframes site-nav-fade-in {
  from {
    opacity: 0.85;
  }

  to {
    opacity: 1;
  }
}

@media (prefers-reduced-motion: reduce) {
  html.site-nav-js .site-nav.is-open {
    animation: none;
  }
}

.site-footer {
  margin-top: auto;
  background: var(--bg-card);
}

.site-footer__inner {
  max-width: 72rem;
  margin: 0 auto;
  padding: 1rem 1.25rem;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 1rem;
}

.site-footer__list {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem 1.25rem;
  list-style: none;
  margin: 0;
  padding: 0;
}

.site-footer a {
  color: var(--text-ui);
  text-decoration: none;
  border-radius: var(--radius-sm);
  transition: color var(--transition);
}

.site-footer a:hover {
  color: var(--accent-hover);
}

.site-footer a:focus-visible {
  outline: 2px solid var(--border-focus);
  outline-offset: 3px;
  color: var(--accent-hover);
}