/* AI-TLT Studio — page layout on top of /ai-tlt/ui/v1. Theme tokens only. */

.app-boot { min-height: 100vh; display: grid; place-items: center; }
.app-noscript { padding: var(--ait-gutter); text-align: center; }
.app-loading { display: grid; place-items: center; min-height: 240px; }

/* Top bar (as on accounts.ai-tlt.eu) */
.app-topbar { position: sticky; top: 0; z-index: 40; background: var(--ait-bg-raised); border-bottom: 1px solid var(--ait-border);
  backdrop-filter: saturate(1.4) blur(8px); }
.app-topbar-inner { max-width: var(--ait-content-max); margin: 0 auto; padding: 0 var(--ait-gutter); min-height: var(--ait-topbar-h);
  display: grid; grid-template-columns: auto 1fr auto; grid-template-areas: "brand nav user"; align-items: center; gap: var(--ait-space-5); }
.app-brand { grid-area: brand; display: inline-flex; align-items: center; gap: 10px; color: var(--ait-text); }
.app-brand:hover { text-decoration: none; }
.app-brand-mark { width: 30px; height: 30px; border-radius: 9px; display: grid; place-items: center; flex: none;
  background: var(--ait-accent); color: var(--ait-on-accent); font-weight: 800; font-size: 0.95rem; letter-spacing: -0.02em; }
.app-brand-mark-lg { width: 52px; height: 52px; border-radius: 14px; font-size: 1.5rem; }
.app-brand-text { display: flex; align-items: baseline; gap: 6px; font-size: 0.98rem; }
.app-brand-text span { color: var(--ait-text-muted); font-weight: 500; }

.app-nav { grid-area: nav; display: flex; align-items: center; gap: var(--ait-space-4); min-width: 0; }
.app-nav-group { display: flex; align-items: center; gap: 2px; }
.app-nav-link { display: inline-flex; align-items: center; gap: 7px; height: 36px; padding: 0 11px; border-radius: var(--ait-radius-sm);
  color: var(--ait-text-muted); font-size: 0.9rem; font-weight: 540; white-space: nowrap; transition: background var(--ait-transition), color var(--ait-transition); }
.app-nav-link svg { width: 16px; height: 16px; }
.app-nav-link:hover { background: var(--ait-surface-2); color: var(--ait-text); text-decoration: none; }
.app-nav-link[aria-current="page"] { background: var(--ait-accent-soft); color: var(--ait-accent-strong); }

.app-user { grid-area: user; position: relative; justify-self: end; display: flex; align-items: center; gap: var(--ait-space-3); }
.app-user-btn { display: inline-flex; align-items: center; gap: 8px; height: 40px; padding: 0 8px 0 4px; max-width: 220px;
  border: 1px solid transparent; border-radius: var(--ait-radius-pill); background: transparent; color: var(--ait-text); font: inherit; font-size: 0.9rem; cursor: pointer; }
.app-user-btn:hover, .app-user-btn[aria-expanded="true"] { background: var(--ait-surface-2); border-color: var(--ait-border); }
.app-user-btn > svg { width: 16px; height: 16px; color: var(--ait-text-muted); flex: none; }
.app-menu-head { display: flex; align-items: center; gap: var(--ait-space-3); padding: 8px 10px; }
.app-menu-name { font-weight: 600; }
.app-menu-label { padding: 4px 10px; font-size: 0.72rem; font-weight: 650; text-transform: uppercase; letter-spacing: 0.06em; color: var(--ait-text-faint); }
.ait-menu-item svg { width: 16px; height: 16px; color: var(--ait-text-muted); }
.app-menu-check { visibility: hidden; color: var(--ait-accent-strong); display: inline-flex; }
.ait-menu-item[aria-checked="true"] .app-menu-check { visibility: visible; }
.app-menu-check svg { color: var(--ait-accent-strong); }

@media (max-width: 900px) {
  .app-topbar-inner { grid-template-columns: 1fr auto; grid-template-areas: "brand user" "nav nav"; gap: 0 var(--ait-space-3); }
  .app-nav { flex-wrap: wrap; gap: 2px var(--ait-space-2); padding-bottom: 8px; }
}
@media (max-width: 560px) {
  .app-user-name { display: none; }
  .app-nav-link { padding: 0 8px; height: 34px; }
}

.app-banner-wrap { max-width: var(--ait-content-max); margin: var(--ait-space-4) auto 0; padding: 0 var(--ait-gutter); }

/* Page */
.app-main { max-width: var(--ait-content-max); margin: 0 auto; padding: var(--ait-space-5) var(--ait-gutter) var(--ait-space-7); outline: none; }
.app-main:focus-visible { box-shadow: none; }
.app-page { display: flex; flex-direction: column; gap: var(--ait-space-5); }
.app-page-head { display: flex; align-items: flex-end; justify-content: space-between; gap: var(--ait-space-4); flex-wrap: wrap; }

/* Signed-out */
.app-center { min-height: 100vh; display: grid; place-items: center; padding: var(--ait-space-6) var(--ait-gutter); outline: none; }
.app-signin-card { width: 100%; max-width: 420px; }
.app-signin-card .ait-card-body { padding: var(--ait-space-6); gap: var(--ait-space-5); }
.app-signin-brand { display: flex; justify-content: center; }
.app-signin-intro { text-align: center; }
.app-signin-intro h1 { font-size: 1.5rem; }
.app-signin-foot { text-align: center; }
@media (max-width: 480px) { .app-signin-card .ait-card-body { padding: var(--ait-space-5) var(--ait-space-4); } }

/* Filters: kind segments and tag chips */
.app-segments { display: inline-flex; padding: 3px; gap: 2px; border: 1px solid var(--ait-border); border-radius: var(--ait-radius);
  background: var(--ait-bg-raised); }
.app-segment { padding: 5px 12px; border-radius: var(--ait-radius-sm); color: var(--ait-text-muted); font-size: 0.88rem; font-weight: 550; white-space: nowrap; }
.app-segment:hover { background: var(--ait-surface-2); color: var(--ait-text); text-decoration: none; }
.app-segment[aria-current="page"] { background: var(--ait-accent-soft); color: var(--ait-accent-strong); }
.app-tags { margin-top: calc(-1 * var(--ait-space-2)); }
.app-chip { display: inline-flex; align-items: center; height: 28px; padding: 0 11px; border-radius: var(--ait-radius-pill);
  border: 1px solid var(--ait-border); background: var(--ait-surface); color: var(--ait-text-muted); font-size: 0.82rem; font-weight: 550; }
.app-chip:hover { border-color: var(--ait-border-strong); color: var(--ait-text); text-decoration: none; }
.app-chip[aria-current="page"] { background: var(--ait-accent-soft); border-color: var(--ait-accent); color: var(--ait-accent-strong); }

/* Time groups */
.app-group { display: flex; flex-direction: column; gap: var(--ait-space-3); }
.app-group-toggle { display: flex; align-items: center; gap: var(--ait-space-2); padding: 6px 4px; border: 0; border-bottom: 1px solid var(--ait-border);
  background: transparent; color: var(--ait-text); font: inherit; cursor: pointer; text-align: left; }
.app-group-toggle:hover .app-group-title { color: var(--ait-accent-strong); }
.app-group-toggle > svg { width: 18px; height: 18px; color: var(--ait-text-muted); transition: transform var(--ait-transition); }
.app-group-toggle[aria-expanded="false"] > svg { transform: rotate(-90deg); }
.app-group-title { margin: 0; font-size: 1.05rem; font-weight: 650; }
.app-group-body { display: flex; flex-direction: column; gap: var(--ait-space-3); }
.app-group-body[hidden] { display: none; }
.app-group-foot { display: flex; justify-content: center; }
.app-group-foot:empty { display: none; }

/* Media cards */
.app-media-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(220px, 1fr)); gap: var(--ait-space-4); }
@media (max-width: 480px) { .app-media-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); gap: var(--ait-space-3); } }
.app-item { overflow: hidden; display: flex; flex-direction: column; transition: border-color var(--ait-transition); }
.app-item:hover { border-color: var(--ait-border-strong); }
.app-thumb { position: relative; display: grid; place-items: center; aspect-ratio: 1; width: 100%; padding: 0; border: 0;
  background: var(--ait-surface-2); color: var(--ait-text-faint); cursor: zoom-in; overflow: hidden; }
.app-thumb img { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; }
.app-thumb-glyph { display: grid; place-items: center; }
.app-thumb-glyph svg { width: 40px; height: 40px; }
.app-thumb-play, .app-thumb-time { position: absolute; display: inline-flex; align-items: center; justify-content: center;
  background: var(--ait-bg-raised); color: var(--ait-text); border: 1px solid var(--ait-border); box-shadow: var(--ait-shadow); }
.app-thumb-play { width: 42px; height: 42px; border-radius: 50%; }
.app-thumb-play svg { width: 18px; height: 18px; margin-left: 2px; }
.app-thumb-time { right: 8px; bottom: 8px; padding: 1px 7px; border-radius: var(--ait-radius-pill); font-size: 0.75rem; font-weight: 600; }
.app-thumb-flags { position: absolute; left: 8px; top: 8px; display: flex; flex-wrap: wrap; gap: 4px; }
.app-thumb-flags .ait-badge { box-shadow: var(--ait-shadow); }
.app-item-body { display: flex; flex-direction: column; gap: 6px; padding: var(--ait-space-3); flex: 1; min-width: 0; }
.app-item-name { font-weight: 600; font-size: 0.92rem; }
.app-item-desc { margin: 0; font-size: 0.85rem; color: var(--ait-text-muted); display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }
.app-owner { display: flex; align-items: center; gap: 6px; min-width: 0; }
.app-owner svg { width: 14px; height: 14px; }
.app-owner ait-avatar { --ait-avatar-size: 20px; }
.app-item-foot { margin-top: auto; padding-top: 4px; display: flex; align-items: center; justify-content: space-between; gap: var(--ait-space-2); }

/* Viewer */
dialog.ait-dialog.app-viewer { width: min(1080px, calc(100vw - 2 * var(--ait-gutter))); }
.app-viewer-head { display: flex; align-items: center; gap: var(--ait-space-2); padding: var(--ait-space-3) var(--ait-space-4); border-bottom: 1px solid var(--ait-border); }
.app-viewer-body { display: grid; place-items: center; background: var(--ait-bg); }
.app-viewer-media { display: block; max-width: 100%; max-height: calc(100vh - 180px); }
.app-viewer-audio { display: flex; flex-direction: column; align-items: center; gap: var(--ait-space-4); padding: var(--ait-space-5); width: 100%; }
.app-viewer-audio .app-viewer-media { max-height: 50vh; border-radius: var(--ait-radius); }
.app-viewer-audio .app-thumb-glyph { color: var(--ait-text-faint); }
.app-viewer-audio audio { width: min(520px, 100%); }
.app-viewer-desc { margin: 0; padding: var(--ait-space-3) var(--ait-space-4); }