.app-shell { min-height: 100vh; display: flex; flex-direction: column; }
@view-transition {
  navigation: auto;
}
@media (prefers-reduced-motion: reduce) {
  @view-transition {
    navigation: none;
  }
}

.page-shell {
  flex: 1;
  width: 100%;
  max-width: var(--content);
  margin: 0 auto;
  padding: 0 5.6vw 100px;
  animation: view-in .18s ease both;
}
.page-shell.studio-shell { max-width: 1440px; }
@keyframes view-in {
  from { opacity: 0; }
  to { opacity: 1; }
}

.site-header {
  height: 78px;
  padding: 0 5.6vw;
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-bottom: 1px solid var(--line);
  position: sticky;
  top: 0;
  z-index: 10;
  background: rgba(245,247,245,.9);
  backdrop-filter: blur(16px);
  view-transition-name: site-header;
}
html[data-session] .guest-only { display: none !important; }
.user-only { display: none; }
html[data-session] .header-account.user-only {
  display: flex;
  align-items: center;
  gap: 18px;
}
.auth-notice {
  margin: 0;
  padding: 10px 5.6vw;
  background: #eef3ef;
  border-bottom: 1px solid var(--line);
  color: var(--ink);
  font-size: 13px;
}
.auth-login-notice:not([hidden]) {
  margin: 0 0 14px;
  padding: 10px 12px;
  background: #eef3ef;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  color: var(--ink);
}
.brand {
  display: inline-flex;
  gap: 11px;
  align-items: center;
  font-size: 23px;
  line-height: 1;
  font-weight: 800;
  letter-spacing: -.07em;
}
.brand-dot { color: var(--orange); }
.brand-mark { display: flex; align-items: end; gap: 3px; height: 18px; }
.brand-mark i { display: block; width: 4px; background: var(--blue); border-radius: 10px; }
.brand-mark i:first-child { height: 9px; }
.brand-mark i:nth-child(2) { height: 15px; background: var(--orange); }
.brand-mark i:last-child { height: 12px; background: var(--ink); }
.main-nav { display: flex; align-items: center; gap: 32px; margin-left: 9vw; }
.nav-link {
  position: relative;
  display: inline-flex;
  align-items: center;
  height: 34px;
  color: var(--muted);
  font-size: 13px;
  font-weight: 700;
  line-height: 1;
  transition: color .2s ease;
}
.nav-link:hover, .nav-link.is-active { color: var(--ink); }
.nav-link.is-active::after {
  content: "";
  position: absolute;
  left: 50%;
  bottom: 4px;
  width: 5px;
  height: 5px;
  margin: 0;
  background: var(--orange);
  border-radius: 50%;
  transform: translateX(-50%);
}
.header-actions { display: flex; align-items: center; gap: 18px; }
.icon-button, .menu-button {
  border: 0;
  background: transparent;
  cursor: pointer;
  color: var(--ink);
}
.icon-button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 34px;
  height: 34px;
  padding: 0;
  flex: 0 0 34px;
}
.icon-button:active,
.menu-button:active { opacity: .7; }
.search-icon {
  display: block;
  width: 15px;
  height: 15px;
  border: 1.8px solid currentColor;
  border-radius: 50%;
  position: relative;
}
.search-icon::after {
  content: "";
  position: absolute;
  width: 6px;
  height: 1.8px;
  background: currentColor;
  transform: rotate(45deg);
  right: -5px;
  bottom: -2px;
}
/* login/create base styles live in components.css; layout keeps open-state only. */
.header-msg-link,
.header-works-link {
  appearance: none;
  border: 0;
  background: transparent;
  color: var(--muted);
  font: 700 13px/1 inherit;
  margin: 0;
  padding: 0;
  height: 34px;
  display: inline-flex;
  align-items: center;
  cursor: pointer;
  text-decoration: none;
}
.header-msg-link:hover,
.header-works-link:hover { color: var(--ink); }
.header-msg-badge,
.header-msg-subbadge {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 16px;
  height: 16px;
  padding: 0 5px;
  margin-left: 6px;
  border-radius: 99px;
  background: var(--orange);
  color: #fff;
  font: 700 10px/1 var(--sans);
  letter-spacing: 0;
  vertical-align: middle;
}
.header-msg-subbadge {
  margin-left: auto;
  margin-right: 0;
}
.header-msg-badge[hidden],
.header-msg-subbadge[hidden] { display: none; }
.header-dropdown {
  position: relative;
  display: flex;
  align-items: center;
  height: 34px;
}
.header-dropdown.is-open .create-button,
.header-dropdown.is-open .create-button:hover,
.header-dropdown.is-open .create-button:focus,
.header-dropdown.is-open .create-button:focus-visible {
  background: var(--orange-active);
  outline: none;
  box-shadow: none;
}
.header-menu {
  display: none;
  position: absolute;
  top: calc(100% + 8px);
  left: 0;
  min-width: 188px;
  background: var(--paper);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 6px 0;
  z-index: 20;
  box-shadow: 0 10px 24px rgba(20, 32, 30, .1);
  overflow: hidden;
}
.header-dropdown.is-open .header-menu {
  display: block;
}
.header-menu:focus,
.header-menu:focus-visible { outline: none; }
.header-menu-end { left: auto; right: 0; }
.header-menu a,
.header-menu-action {
  display: flex;
  align-items: center;
  gap: 10px;
  width: 100%;
  text-align: left;
  border: 0;
  background: transparent;
  padding: 9px 14px;
  font-size: 13px;
  color: var(--ink);
  cursor: pointer;
  text-decoration: none;
}
.header-menu a:hover,
.header-menu-action:hover,
.header-menu a:focus-visible,
.header-menu-action:focus-visible { background: #e9eee9; }
.header-menu a:focus,
.header-menu-action:focus { outline: none; }
.header-menu a:active,
.header-menu-action:active { background: var(--line); }
.header-menu-kicker {
  display: block;
  font: 500 10px var(--mono);
  letter-spacing: .08em;
  color: var(--muted);
  margin-bottom: 3px;
}
.header-menu-name {
  margin: 0;
  padding: 8px 14px 10px;
  color: var(--muted);
  font: 10px var(--mono);
  letter-spacing: .06em;
  border-bottom: 1px solid var(--line);
}
.user-avatar {
  width: 34px;
  height: 34px;
  border: 1px solid var(--ink);
  background: var(--lime);
  color: var(--dark);
  font: 700 14px var(--serif);
  border-radius: 50%;
  cursor: pointer;
  display: grid;
  place-items: center;
  overflow: hidden;
  flex: 0 0 34px;
  text-decoration: none;
  padding: 0;
}
.user-avatar img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}
.menu-button { display: none; padding: 4px; }
.menu-button span { display: block; height: 1px; width: 20px; background: var(--ink); margin: 5px; }

.site-footer {
  margin-top: auto;
  border-top: 1px solid var(--line);
  max-width: var(--content);
  width: 100%;
  margin-left: auto;
  margin-right: auto;
  padding: 40px 5.6vw 48px;
  display: grid;
  grid-template-columns: auto minmax(0, 1fr) minmax(200px, auto);
  align-items: start;
  gap: 28px 48px;
  color: var(--muted);
}
.footer-brand { color: var(--ink); align-self: start; }
.site-footer p { margin: 0; }
.footer-copy { text-align: right; font: 9px/1.8 var(--mono); max-width: 280px; justify-self: end; }
.footer-nav {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 8px 32px;
  font-size: 12px;
  min-width: 0;
}
.footer-nav-col {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 8px;
}
.footer-nav-col .aside-label { margin: 0 0 2px; }
.footer-nav a:hover { color: var(--ink); }

.studio-layout { display: grid; grid-template-columns: 210px 1fr; gap: 34px; margin-top: 38px; }
.studio-sidebar { border-right: 1px solid var(--line); padding-right: 28px; }
.sidebar-label {
  color: var(--muted);
  font: 9px var(--mono);
  letter-spacing: .12em;
  margin: 4px 0 13px;
  text-transform: uppercase;
}
.studio-nav {
  display: flex;
  gap: 10px;
  align-items: center;
  padding: 11px 8px;
  font-size: 12px;
  color: var(--muted);
  margin-bottom: 3px;
}
.studio-nav span { width: 16px; color: var(--blue); }
.studio-nav.is-active, .studio-nav:hover { background: #e8eee9; color: var(--ink); }

@media (max-width: 900px) {
  .main-nav { gap: 16px; margin-left: 0; }
  .studio-layout { grid-template-columns: 1fr; }
  .studio-sidebar {
    border-right: 0;
    border-bottom: 1px solid var(--line);
    padding: 0 0 18px;
    display: flex;
    flex-wrap: wrap;
    gap: 5px;
  }
  .sidebar-label { width: 100%; margin-top: 14px !important; }
  .studio-nav { width: auto; }
  .site-footer {
    grid-template-columns: auto 1fr;
    gap: 24px 32px;
  }
  .footer-copy {
    grid-column: 1 / -1;
    text-align: left;
    justify-self: start;
    max-width: none;
  }
}
@media (max-width: 600px) {
  .site-header { height: 66px; padding: 0 20px; }
  .main-nav { display: none; }
  .main-nav.mobile-open {
    display: flex;
    position: absolute;
    top: 66px;
    left: 0;
    right: 0;
    background: rgba(245,247,245,.98);
    flex-direction: column;
    gap: 0;
    padding: 10px 20px 18px;
    border-bottom: 1px solid var(--line);
  }
  .main-nav.mobile-open .nav-link {
    height: auto;
    padding: 12px 0;
    border-bottom: 1px solid var(--line);
  }
  .menu-button { display: block; }
  .header-actions { gap: 14px; }
  .header-msg-link,
  .header-works-link { font-size: 12px; }
  .page-shell { padding-left: 20px; padding-right: 20px; }
  .site-footer {
    grid-template-columns: 1fr;
    gap: 24px;
    padding-left: 20px;
    padding-right: 20px;
  }
  .footer-nav { grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 16px 20px; }
}