/* ============================================================
   WBL Shell v1 — shared chrome for every Water Bear Labs app
   Canonical home: Website Builds/wbl-shell/ (change here first,
   then fan out a copy to each app — see BUILD-SPEC.md).

   Ships: theme tokens, top bar, bottom-left user panel, avatar,
   app icon, dashboard category tabs + tiles.
   Everything is namespaced (--wbl-* / .wbl-*) so it never
   collides with a lab's own internal styles.

   Requires the fonts the apps already load:
   Fraunces (display) + Inter (UI) from Google Fonts.
   ============================================================ */

:root {
  /* ---- WBM Shell v1 palette (extracted from dashboard/post/copy) ---- */
  --wbl-bg: #F4F4FD;
  --wbl-paper: #ECEBFA;
  --wbl-panel: #ffffff;
  --wbl-ink: #1B2C5E;
  --wbl-muted: #5C6C99;
  --wbl-line: #DCDDF2;
  --wbl-volt: #2D5BD1;
  --wbl-volt-soft: #E3EDFC;
  --wbl-lav: #7B6FE0;
  --wbl-lav-soft: #EFECFC;
  --wbl-lav-mut: #8B84C7;
  --wbl-pass: #12805c;
  --wbl-warn: #b7791f;
  --wbl-fail: #d43d2a;

  /* ---- gradient treatments (defined once, per spec §7) ---- */
  --wbl-grad-flair: linear-gradient(135deg, #2D5BD1, #7B6FE0);
  --wbl-grad-page:  linear-gradient(135deg, #19A7CE, #2D5BD1);
  --wbl-grad-copy:  linear-gradient(135deg, #3D53D8, #7B6FE0);
  --wbl-grad-builder: linear-gradient(135deg, #1F9D77, #19A7CE);
  --wbl-grad-post:  linear-gradient(135deg, #7BA7F5, #B79CFF);
  --wbl-grad-ping:  linear-gradient(135deg, #12A5C4, #5EE0C2);
  --wbl-grad-meet:  linear-gradient(135deg, #3E8FD8, #19A7CE);
  --wbl-grad-skills:linear-gradient(135deg, #8F5FD6, #B79CFF);
  --wbl-grad-knb:   linear-gradient(135deg, #4356E0, #8B84C7);
  --wbl-grad-dash:  linear-gradient(135deg, #1B2C5E, #2D5BD1);

  /* ---- type, radius, shadow, spacing ---- */
  --wbl-sans: "Inter", system-ui, sans-serif;
  --wbl-display: "Fraunces", Georgia, serif;
  --wbl-radius: 10px;
  --wbl-radius-lg: 16px;
  --wbl-shadow-ambient: 0 8px 24px rgba(27, 44, 94, .06);
  --wbl-topbar-h: 56px;
}

/* ============================================================
   Dark theme (manual toggle, default light — Cody 2026-08-15).
   Same purple/blue accents & gradients as light; only the SURFACES
   darken. Applied via data-wbl-theme="dark" on <html>.
   NOTE: shell tokens only (--wbl-*). Each app also darkens its own
   local palette in its copy during fan-out — see BUILD-SPEC.
   PALETTE = Option C "Charcoal Slate" (Cody's pick, 2026-08-15):
   neutral charcoal surfaces so the purple/blue accents pop hardest.
   ============================================================ */
:root[data-wbl-theme="dark"] {
  --wbl-bg: #121319;
  --wbl-paper: #1A1C24;
  --wbl-panel: #1F212B;
  --wbl-ink: #E9EBF2;
  --wbl-muted: #9AA0B2;
  --wbl-line: #2A2D38;
  --wbl-volt: #4F7BEA;
  --wbl-volt-soft: rgba(79, 123, 234, .16);
  --wbl-lav: #8E7DF0;
  --wbl-lav-soft: rgba(142, 125, 240, .16);
  --wbl-lav-mut: #7A7F96;
  --wbl-shadow-ambient: 0 10px 30px rgba(0, 0, 0, .55);
}
:root[data-wbl-theme="dark"] { color-scheme: dark; }

/* Gentle cross-fade when the theme flips (shell surfaces only). */
.wbl-topbar, .wbl-user-panel, .wbl-up-icon, .wbl-app-icon,
.wbl-tabs, .wbl-tab, .wbl-tile, .wbl-tile-body, .wbl-tiles-empty {
  transition: background-color .2s ease, border-color .2s ease, color .2s ease, box-shadow .2s ease;
}

/* ============================================================
   Top bar (§3) — back arrow + app icon + app name
   ============================================================ */
.wbl-topbar {
  position: sticky; top: 0; z-index: 40;
  display: flex; align-items: center; gap: 12px;
  height: var(--wbl-topbar-h);
  padding: 0 18px;
  background: var(--wbl-panel);
  border-bottom: 1px solid var(--wbl-line);
}
.wbl-topbar::before {
  /* thin brand accent along the very top */
  content: ""; position: absolute; top: 0; left: 0; right: 0; height: 3px;
  background: var(--wbl-grad-flair);
}
.wbl-topbar-back {
  display: grid; place-items: center; flex: none;
  width: 34px; height: 34px; border-radius: 9px;
  color: var(--wbl-ink); text-decoration: none;
  border: 1px solid transparent;
  transition: background .12s ease, border-color .12s ease;
}
.wbl-topbar-back:hover { background: var(--wbl-lav-soft); border-color: var(--wbl-line); }
.wbl-topbar-back svg { width: 18px; height: 18px; display: block; }
.wbl-topbar-name {
  font-family: var(--wbl-display); font-weight: 600;
  font-size: 18px; letter-spacing: -0.3px; color: var(--wbl-ink);
  line-height: 1;
}
.wbl-topbar-brand { display: flex; flex-direction: column; gap: 3px; }
.wbl-topbar-brand .wbl-topbar-name { font-weight: 700; }
.wbl-topbar-sub {
  font-family: var(--wbl-sans); font-size: 9px; font-weight: 600;
  letter-spacing: 2.4px; text-transform: uppercase; color: var(--wbl-lav-mut);
  line-height: 1;
}
.wbl-topbar-right { margin-left: auto; display: flex; align-items: center; gap: 10px; }

/* Hamburger — hidden on desktop, shown on mobile by the drawer media query */
.wbl-hamburger {
  display: none; flex: none;
  width: 36px; height: 36px; border-radius: 9px;
  border: 1px solid var(--wbl-line); background: var(--wbl-panel);
  color: var(--wbl-ink); cursor: pointer;
  place-items: center; font: inherit;
  padding: 0; margin: 0; box-sizing: border-box;  /* immune to a lab's global button padding */
}
.wbl-hamburger:hover { transform: none; box-shadow: none; filter: none; }
.wbl-hamburger svg { width: 20px; height: 20px; display: block; }
.wbl-hamburger:hover { background: var(--wbl-lav-soft); border-color: var(--wbl-lav-mut); }

/* In-drawer "Back to Dashboard" link — mobile only (desktop keeps the top-bar arrow) */
.wbl-drawer-back { display: none; }

/* ============================================================
   Universal mobile navigation (§ Cody 2026-08-15): the lab's menu
   collapses into a slide-in drawer + scrim; user panel rides along
   at its foot. Any element tagged .wbl-drawer-host becomes the drawer.
   Breakpoint 820px — each lab aligns its own layout to match.
   ============================================================ */
.wbl-scrim {
  position: fixed; inset: 0; z-index: 999;
  background: rgba(27, 44, 94, .34);
  opacity: 0; pointer-events: none; transition: opacity .18s ease;
}
body.wbl-menu-open .wbl-scrim { opacity: 1; pointer-events: auto; }

@media (max-width: 820px) {
  .wbl-hamburger { display: grid; }
  .wbl-topbar-back { display: none; }   /* replaced by hamburger + in-drawer back link */

  .wbl-drawer-host {
    position: fixed !important;
    top: 0 !important; left: 0 !important; bottom: 0 !important;
    height: 100% !important;
    width: min(86vw, 300px) !important;
    max-width: 300px;
    margin: 0 !important;
    transform: translateX(-100%) !important;
    transition: transform .28s ease;
    z-index: 1000 !important;   /* must beat each lab's own sidebar z-index */
    overflow-y: auto;
  }
  body.wbl-menu-open .wbl-drawer-host {
    transform: translateX(0) !important;
    box-shadow: 4px 0 28px rgba(27, 44, 94, .20);
  }

  .wbl-drawer-back {
    display: flex; align-items: center; gap: 10px;
    margin: 2px 10px; padding: 10px; border-radius: 9px;
    color: var(--wbl-muted); font-family: var(--wbl-sans);
    font-weight: 500; font-size: 13.5px;
    text-decoration: none; cursor: pointer;
  }
  .wbl-drawer-back svg { width: 17px; height: 17px; flex: none; }
  .wbl-drawer-back:hover { background: var(--wbl-lav-soft); color: var(--wbl-lav); }
}

/* ============================================================
   App icon (§7) — one component, three placements
   ============================================================ */
.wbl-app-icon {
  display: grid; place-items: center; flex: none;
  width: 34px; height: 34px; border-radius: 9px;
  background: var(--wbl-panel);
  border: 1px solid var(--wbl-line);
}
.wbl-app-icon img { width: 72%; height: 72%; object-fit: contain; display: block; }
.wbl-app-icon--grad { border: none; }
.wbl-app-icon--grad img { filter: brightness(0) invert(1); } /* white glyph on gradient */
.wbl-app-icon--lg { width: 64px; height: 64px; border-radius: 16px; }
.wbl-app-icon--sm { width: 24px; height: 24px; border-radius: 7px; }

/* ============================================================
   User avatar (§6) — initials on the user's assigned color
   ============================================================ */
.wbl-avatar {
  display: grid; place-items: center; flex: none;
  width: 36px; height: 36px; border-radius: 50%;
  background: var(--wbl-grad-flair); /* fallback; JS sets the user's color */
  color: #fff; font-family: var(--wbl-sans);
  font-weight: 700; font-size: 13px; letter-spacing: .3px;
  user-select: none;
}
.wbl-avatar--sm { width: 26px; height: 26px; font-size: 10px; }
.wbl-avatar--lg { width: 52px; height: 52px; font-size: 18px; }

/* ============================================================
   Bottom-left user panel (§4) — identity + Settings + Sign out
   ============================================================ */
/* Compact, Claude-pattern: one row — [avatar] [name/email] [theme][gear][sign out].
   Sign out only renders when the app passes onSignOut/signOutHref (Dashboard only). */
.wbl-user-panel {
  width: 236px;
  background: var(--wbl-panel);
  border: 1px solid var(--wbl-line);
  border-radius: var(--wbl-radius-lg);
  box-shadow: var(--wbl-shadow-ambient);
  padding: 8px 9px;
  font-family: var(--wbl-sans);
  display: flex; align-items: center; gap: 9px;
}
.wbl-user-panel--fixed { position: fixed; left: 16px; bottom: 16px; z-index: 45; }
.wbl-user-panel .wbl-up-id { display: flex; align-items: center; gap: 9px; min-width: 0; flex: 1; }
.wbl-user-panel .wbl-up-who { min-width: 0; }
.wbl-user-panel .wbl-up-name {
  font-weight: 600; font-size: 12.5px; color: var(--wbl-ink); line-height: 1.2;
  overflow: hidden; text-overflow: ellipsis; white-space: nowrap;
}
.wbl-user-panel .wbl-up-email {
  font-size: 11px; color: var(--wbl-muted); line-height: 1.3;
  overflow: hidden; text-overflow: ellipsis; white-space: nowrap; max-width: 150px;
}
.wbl-user-panel .wbl-up-actions { display: flex; align-items: center; gap: 4px; flex: none; }
.wbl-up-icon {
  width: 30px; height: 30px; border-radius: 8px; flex: none;
  display: grid; place-items: center; cursor: pointer;
  background: var(--wbl-panel); color: var(--wbl-muted);
  border: 1px solid var(--wbl-line); text-decoration: none;
  transition: background .12s ease, border-color .12s ease, color .12s ease;
  padding: 0; margin: 0; box-sizing: border-box; font: inherit; /* immune to labs' global button styles */
}
.wbl-up-icon:hover { transform: none; box-shadow: none; filter: none; }
.wbl-up-icon svg { width: 15px; height: 15px; flex: none; }
.wbl-up-icon:hover { background: var(--wbl-lav-soft); border-color: var(--wbl-lav-mut); color: var(--wbl-ink); }
.wbl-up-icon--signout:hover { background: #FBE9E6; border-color: #F2C7C0; color: var(--wbl-fail); }

/* Gear menu — anchored popover above the panel (footer spec §2) */
.wbl-user-panel { position: relative; }
.wbl-user-panel--fixed { position: fixed; }
.wbl-menu {
  position: absolute; left: 0; right: 0; bottom: calc(100% + 8px);
  background: var(--wbl-panel); border: 1px solid var(--wbl-line);
  border-radius: 12px; box-shadow: 0 12px 32px rgba(27, 44, 94, .16);
  padding: 6px; z-index: 70; display: none; flex-direction: column; gap: 2px;
  font-family: var(--wbl-sans);
}
.wbl-menu--open { display: flex; }
.wbl-menu-item {
  display: block; width: 100%; text-align: left; box-sizing: border-box;
  padding: 9px 11px; border-radius: 8px; border: 0; background: none; cursor: pointer;
  font: inherit; font-size: 13.5px; font-weight: 600; color: var(--wbl-ink);
  text-decoration: none; transition: background .12s ease, color .12s ease;
}
.wbl-menu-item:hover { background: var(--wbl-lav-soft); color: var(--wbl-lav); transform: none; box-shadow: none; filter: none; }
.wbl-menu-item--danger { color: var(--wbl-fail); }
.wbl-menu-item--danger:hover { background: rgba(212, 61, 42, .10); color: var(--wbl-fail); }
.wbl-menu-div { height: 1px; background: var(--wbl-line); margin: 4px 2px; }

/* ============================================================
   Dashboard category tabs + app tiles (§2)
   ============================================================ */
.wbl-tabs {
  display: flex; gap: 6px; flex-wrap: wrap;
  padding: 4px; border-radius: 12px;
  background: var(--wbl-paper);
  width: max-content; max-width: 100%;
  font-family: var(--wbl-sans);
}
.wbl-tab {
  border: 0; background: transparent; cursor: pointer;
  padding: 8px 16px; border-radius: 9px;
  font-family: var(--wbl-sans); font-weight: 600; font-size: 13.5px;
  color: var(--wbl-muted);
  transition: background .12s ease, color .12s ease, box-shadow .12s ease;
}
.wbl-tab:hover { color: var(--wbl-ink); }
.wbl-tab[aria-selected="true"] {
  background: var(--wbl-panel); color: var(--wbl-ink);
  box-shadow: 0 1px 4px rgba(27, 44, 94, .10);
}

.wbl-tiles {
  display: grid; gap: 16px; margin-top: 18px;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
}
.wbl-tile {
  background: var(--wbl-panel);
  border: 1px solid var(--wbl-line);
  border-radius: var(--wbl-radius-lg);
  overflow: hidden; cursor: pointer;
  box-shadow: none;
  transition: transform .14s ease, box-shadow .14s ease, border-color .14s ease;
  font-family: var(--wbl-sans);
}
.wbl-tile:hover { transform: translateY(-3px); box-shadow: var(--wbl-shadow-ambient); border-color: transparent; }
.wbl-tile .wbl-tile-art {
  height: 116px; display: grid; place-items: center;
  background: var(--wbl-grad-flair); /* JS overrides per app */
}
.wbl-tile .wbl-tile-art img { width: 56px; height: 56px; object-fit: contain; filter: brightness(0) invert(1); }
.wbl-tile .wbl-tile-body { padding: 14px 16px 13px; }
.wbl-tile .wbl-tile-name {
  font-family: var(--wbl-display); font-weight: 600;
  font-size: 19px; letter-spacing: -0.3px; color: var(--wbl-ink);
}
.wbl-tile .wbl-tile-desc { font-size: 13px; color: var(--wbl-muted); margin-top: 2px; line-height: 1.45; }
.wbl-tile .wbl-tile-foot { display: flex; margin-top: 12px; }
.wbl-tile .wbl-tile-open {
  margin-left: auto; display: inline-flex; align-items: center; gap: 5px;
  font-size: 13px; font-weight: 600; color: var(--wbl-volt);
  background: none; border: 0; padding: 0; cursor: pointer; font-family: var(--wbl-sans);
}
.wbl-tile:hover .wbl-tile-open { text-decoration: underline; }

.wbl-tiles-empty {
  grid-column: 1 / -1;
  padding: 44px 20px; text-align: center;
  color: var(--wbl-muted); font-size: 14px;
  background: var(--wbl-paper); border-radius: var(--wbl-radius-lg);
  border: 1px dashed var(--wbl-line);
}
