/* PixGB's shared app shell: cleaner hierarchy, theme-aware surfaces and resilient navigation. */
html { scroll-padding-top: 5rem; }
body:not(.admin-area) {
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

@media (min-width: 1101px) {
  body:not(.admin-area) .site-header {
    grid-template-columns: auto minmax(0, 1fr);
    gap: clamp(1rem, 2vw, 2rem);
    padding: 0.72rem clamp(1rem, 2.4vw, 2.5rem);
    border-bottom-color: color-mix(in srgb, var(--line) 90%, var(--accent));
    background: color-mix(in srgb, var(--bg0) 91%, transparent);
    backdrop-filter: blur(18px) saturate(145%);
    -webkit-backdrop-filter: blur(18px) saturate(145%);
  }
  body:not(.admin-area) .site-header__bar { display: block; }
  body:not(.admin-area) .brand {
    gap: 0.62rem;
    font-size: 1.42rem;
    letter-spacing: -0.045em;
    transition: opacity 150ms ease, transform 150ms ease;
  }
  body:not(.admin-area) .brand:hover { opacity: 0.88; transform: translateY(-1px); }
  body:not(.admin-area) .brand-mark { filter: drop-shadow(0 0 12px color-mix(in srgb, var(--accent) 22%, transparent)); }
  body:not(.admin-area) .nav {
    grid-column: 2;
    justify-content: flex-start;
    flex-wrap: nowrap;
    gap: 0.12rem;
    overflow-x: auto;
    overflow-y: hidden;
    padding: 0.2rem 0.05rem;
    scrollbar-width: none;
    overscroll-behavior-inline: contain;
  }
  body:not(.admin-area) .nav::-webkit-scrollbar { display: none; }
  body:not(.admin-area) .nav > a:not(.btn) {
    display: inline-flex;
    flex: 0 0 auto;
    align-items: center;
    min-height: 2.35rem;
    padding: 0.45rem 0.62rem;
    border: 1px solid transparent;
    border-radius: 8px;
    color: var(--muted);
    font-size: 0.82rem;
    font-weight: 560;
    white-space: nowrap;
    transition: color 140ms ease, background 140ms ease, border-color 140ms ease;
  }
  body:not(.admin-area) .nav > a:not(.btn):hover {
    color: var(--ink);
    background: color-mix(in srgb, var(--bg2) 62%, transparent);
    border-color: color-mix(in srgb, var(--line) 84%, transparent);
  }
  body:not(.admin-area) .nav > a:not(.btn).is-current {
    color: var(--ink);
    background: color-mix(in srgb, var(--accent) 10%, var(--bg1));
    border-color: color-mix(in srgb, var(--accent) 22%, var(--line));
  }
  body:not(.admin-area) .nav .nav-signup {
    flex: 0 0 auto;
    min-height: 2.35rem;
    padding: 0.45rem 0.88rem;
    border-radius: 8px;
  }
}

body:not(.admin-area) .site-main {
  width: min(1560px, 100%);
  padding: clamp(1rem, 2.4vw, 2rem) clamp(1rem, 3vw, 2.75rem) clamp(3rem, 5vw, 4.5rem);
}
body:not(.admin-area) .site-main > .flash { margin-top: 0.25rem; }
body:not(.admin-area) .site-main h1,
body:not(.admin-area) .site-main h2,
body:not(.admin-area) .site-main h3 {
  text-wrap: balance;
}
body:not(.admin-area) .site-main h1 {
  letter-spacing: -0.045em;
  line-height: 1.07;
}
body:not(.admin-area) .site-main h2 { letter-spacing: -0.03em; }
body:not(.admin-area) .site-main p { text-wrap: pretty; }

body:not(.admin-area) .site-main > .panel {
  border-color: color-mix(in srgb, var(--line) 88%, var(--accent));
  border-radius: clamp(14px, 1.3vw, 20px);
  background:
    linear-gradient(145deg, color-mix(in srgb, var(--card) 94%, var(--bg2)), var(--card));
  box-shadow: 0 16px 48px color-mix(in srgb, var(--bg0) 30%, transparent),
    inset 0 1px color-mix(in srgb, var(--ink) 3%, transparent);
}
body:not(.admin-area) .site-main > .panel > :first-child { margin-top: 0; }
body:not(.admin-area) .site-main > .panel > :last-child { margin-bottom: 0; }

body:not(.admin-area) .site-main :is(input:not([type="checkbox"]):not([type="radio"]):not([type="hidden"]):not([type="submit"]), select, textarea) {
  border-radius: 9px;
  border-color: color-mix(in srgb, var(--line) 82%, var(--muted));
  transition: border-color 140ms ease, box-shadow 140ms ease, background-color 140ms ease;
}
body:not(.admin-area) .site-main :is(input, select, textarea):focus-visible {
  outline: 2px solid color-mix(in srgb, var(--accent) 76%, transparent);
  outline-offset: 2px;
}
body:not(.admin-area) .site-main .btn {
  min-height: 2.55rem;
  border-radius: 9px;
  font-weight: 680;
  letter-spacing: -0.01em;
  box-shadow: 0 4px 14px color-mix(in srgb, var(--accent) 11%, transparent);
  transition: transform 150ms ease, background-color 150ms ease, border-color 150ms ease, box-shadow 150ms ease;
}
body:not(.admin-area) .site-main .btn:hover {
  transform: translateY(-1px);
  box-shadow: 0 7px 20px color-mix(in srgb, var(--accent) 16%, transparent);
}
body:not(.admin-area) .site-main .btn.btn-ghost { box-shadow: none; }
body:not(.admin-area) :is(a, button, input, select, textarea):focus-visible {
  outline-color: var(--accent);
  outline-offset: 3px;
}

body:not(.admin-area) .site-footer {
  gap: 1.35rem;
  padding: 1.5rem clamp(1rem, 3vw, 2.75rem) calc(1.5rem + env(safe-area-inset-bottom));
  border-top-color: color-mix(in srgb, var(--line) 85%, var(--accent));
  background: color-mix(in srgb, var(--bg0) 45%, transparent);
}
body:not(.admin-area) .site-footer-ads,
body:not(.admin-area) .site-footer-row {
  width: min(1560px, 100%);
  margin-inline: auto;
}
body:not(.admin-area) .site-footer-row {
  align-items: start;
  gap: 1.25rem 2rem;
  padding-top: 1.1rem;
  border-top: 1px solid var(--line);
}
body:not(.admin-area) .footer-links { gap: 0.5rem 1.1rem; }
body:not(.admin-area) .footer-links a {
  color: var(--muted);
  font-size: 0.84rem;
  transition: color 140ms ease;
}
body:not(.admin-area) .footer-links a:hover { color: var(--accent-hover); }

@media (max-width: 1100px) {
  body:not(.admin-area) .site-header {
    padding: 0.62rem max(0.9rem, env(safe-area-inset-right)) 0.62rem max(0.9rem, env(safe-area-inset-left));
    background: color-mix(in srgb, var(--bg0) 94%, transparent);
    backdrop-filter: blur(16px) saturate(135%);
    -webkit-backdrop-filter: blur(16px) saturate(135%);
  }
  body:not(.admin-area) .nav.is-open {
    gap: 0.42rem;
    padding: 0.75rem 0 0.4rem;
    border-top-color: color-mix(in srgb, var(--line) 86%, var(--accent));
  }
  body:not(.admin-area) .nav.is-open > a:not(.btn) {
    min-height: 2.5rem;
    border-color: color-mix(in srgb, var(--line) 90%, transparent);
    border-radius: 9px;
    background: color-mix(in srgb, var(--bg1) 75%, transparent);
  }
  body:not(.admin-area) .nav.is-open > a.is-current:not(.btn) {
    color: var(--ink);
    border-color: color-mix(in srgb, var(--accent) 38%, var(--line));
    background: color-mix(in srgb, var(--accent) 10%, var(--bg1));
  }
}

@media (max-width: 720px) {
  body:not(.admin-area) .site-main {
    padding: 0.9rem max(0.8rem, env(safe-area-inset-right)) calc(5rem + env(safe-area-inset-bottom)) max(0.8rem, env(safe-area-inset-left));
  }
  body:not(.admin-area) .site-main > .panel { padding: 1rem; }
  body:not(.admin-area) .site-footer { padding-bottom: calc(5.7rem + env(safe-area-inset-bottom)); }
  body:not(.admin-area) .mobile-bottom-nav {
    border-top-color: color-mix(in srgb, var(--line) 78%, var(--accent));
    background: color-mix(in srgb, var(--bg0) 92%, transparent);
    box-shadow: 0 -12px 32px color-mix(in srgb, var(--bg0) 32%, transparent);
    backdrop-filter: blur(18px) saturate(140%);
    -webkit-backdrop-filter: blur(18px) saturate(140%);
  }
  body:not(.admin-area) .mobile-bottom-nav__item { min-height: 3.45rem; }
}

@media (prefers-reduced-motion: reduce) {
  body:not(.admin-area) *,
  body:not(.admin-area) *::before,
  body:not(.admin-area) *::after {
    scroll-behavior: auto !important;
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}