/* SOVRA shell chrome: rail, top bar, scope pickers, sub-nav, popovers, palette, toasts, footer, auth layout.
   Tokens come from css/gib.css (:root). Shell-owned selectors are scoped so they do not fight page components. */

/* ---------------------------------------------------------------- frame */
html { scroll-padding-top: calc(var(--topbar-h) + 12px); }
body[data-page]:not([data-page="login"]):not([data-page="register"]):not([data-shell="off"]) > .gib-main,
body[data-page]:not([data-page="login"]):not([data-page="register"]):not([data-shell="off"]) > .gib-topbar {
  margin-left: var(--rail-w);
}
body[data-page]:not([data-page="login"]):not([data-page="register"]):not([data-shell="off"]) > .gib-main {
  padding-left: 0;
  min-height: calc(100vh - var(--topbar-h));
  display: flex;
  flex-direction: column;
  min-width: 0;
}
body[data-page] > .gib-main > * { min-width: 0; }
body[data-page] > .gib-main > .gib-footer { margin-top: auto; }

.gib-rail [hidden], .gib-topbar [hidden], .gib-subnav [hidden], .gib-palette [hidden], .gib-footer [hidden],
.gib-drawer[hidden], [role="tabpanel"][hidden], .gib-popover[hidden] { display: none !important; }

.gib-skip {
  position: fixed; left: 12px; top: -60px; z-index: 100; padding: 10px 14px; border-radius: var(--radius-sm);
  background: var(--blue); color: #fff; font: 600 13px/1 var(--font-ui); text-decoration: none; transition: top .15s;
}
.gib-skip:focus { top: 12px; }

/* ---------------------------------------------------------------- rail */
.gib-rail {
  position: fixed; inset: 0 auto 0 0; z-index: 40; width: var(--rail-w);
  display: flex; flex-direction: column;
  background: linear-gradient(180deg, var(--rail) 0%, #07080D 100%);
  border-right: 1px solid var(--line);
  box-shadow: inset -1px 0 0 rgba(255,255,255,.015);
}
.gib-rail-brand {
  flex: none; height: var(--topbar-h); display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 4px;
  text-decoration: none; border-bottom: 1px solid var(--line);
}
.gib-rail-brand img { width: 28px; height: 28px; display: block; filter: drop-shadow(0 0 10px rgba(45,107,255,.5)); }
.gib-rail-brand span { font: 600 8.5px/1 var(--font-display); letter-spacing: .26em; padding-left: .26em; color: var(--text-3); }
.gib-rail-brand:hover span { color: var(--text); }
.gib-rail-ctx { display: none; }
.gib-rail-nav {
  flex: 1; min-height: 0; overflow-y: auto; overflow-x: hidden; scrollbar-width: none;
  display: flex; flex-direction: column; padding: 10px 0 6px;
}
.gib-rail-nav::-webkit-scrollbar { display: none; }
.gib-rail-group { display: flex; flex-direction: column; align-items: center; gap: 3px; }
.gib-rail-group.is-bottom { margin-top: auto; padding-top: 10px; position: relative; }
.gib-rail-group.is-bottom::before { content: ""; position: absolute; top: 0; left: 18px; right: 18px; height: 1px; background: var(--line-2); }
.gib-rail-item {
  position: relative; width: 72px; min-height: 54px; padding: 8px 4px 7px; border-radius: 10px;
  display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 5px;
  color: var(--text-3); text-decoration: none; transition: background .15s, color .15s;
}
.gib-rail-item .gib-i { width: 20px; height: 20px; flex: none; }
.gib-rail-l {
  font: 500 10.5px/1.15 var(--font-ui); text-align: center; letter-spacing: .005em; max-width: 100%; overflow-wrap: anywhere;
  display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden;
}
.gib-rail-t { display: none; }
.gib-rail-item:hover { background: rgba(255,255,255,.035); color: var(--text); }
.gib-rail-item:focus-visible { outline: 2px solid var(--blue-glow); outline-offset: -2px; }
.gib-rail-item[aria-current] {
  color: var(--text);
  background: linear-gradient(180deg, var(--surface-3), var(--surface-2));
  box-shadow: inset 0 1px 0 rgba(255,255,255,.07), 0 0 0 1px var(--line-2), 0 8px 18px -10px rgba(0,0,0,.8);
}
.gib-rail-item[aria-current] .gib-i { color: var(--sky); filter: drop-shadow(0 0 6px rgba(141,202,254,.45)); }
.gib-rail-item[aria-current]::before {
  content: ""; position: absolute; left: -8px; top: 11px; bottom: 11px; width: 3px; border-radius: 0 3px 3px 0;
  background: linear-gradient(180deg, #7FA8FF, var(--blue-glow));
  box-shadow: 0 0 8px 1px rgba(45,107,255,.95), 0 0 22px 3px rgba(45,107,255,.45);
}
.gib-rail-avatar {
  flex: none; width: 38px; height: 38px; margin: 10px auto 14px; border-radius: 50%;
  display: grid; place-items: center; text-decoration: none;
  font: 600 12px/1 var(--font-display); color: var(--text); letter-spacing: .02em;
  border: 2px solid transparent;
  background: linear-gradient(var(--surface-3), var(--surface-3)) padding-box, linear-gradient(135deg, var(--blue-glow), var(--violet) 55%, var(--pink)) border-box;
  box-shadow: 0 0 16px -4px rgba(45,107,255,.6);
}
.gib-rail-avatar:hover { filter: brightness(1.15); }
.gib-rail-scrim { display: none; }

/* ---------------------------------------------------------------- top bar */
.gib-topbar {
  position: sticky; top: 0; z-index: 30; height: var(--topbar-h);
  display: flex; align-items: center; gap: 8px; padding: 0 18px 0 14px; min-width: 0;
  background: rgba(11,14,21,.88);
  -webkit-backdrop-filter: blur(16px) saturate(140%); backdrop-filter: blur(16px) saturate(140%);
  border-bottom: 1px solid var(--line);
  font-family: var(--font-ui);
}
.gib-topbar .gib-i { width: 18px; height: 18px; flex: none; }
.gib-menu-btn { display: none !important; }
/* crumbs never flex-shrink (avoids sub-pixel ellipsis); the cap leaves room for search, pill, bell and profile */
.gib-crumbs { display: flex; align-items: center; gap: 2px; min-width: 0; flex: 0 0 auto; max-width: calc(100% - 410px); }
.gib-topbar[data-scope="workspace"] .gib-crumbs { max-width: calc(100% - 580px); }
.gib-crumb-sep { width: 14px !important; height: 14px !important; color: var(--text-4); margin: 0 1px; }
.gib-picker { position: relative; min-width: 0; }
.gib-crumbs .gib-picker { flex: 0 1 auto; }
.gib-picker-btn {
  display: flex; align-items: center; gap: 10px; height: 44px; min-width: 0; max-width: 100%;
  padding: 0 9px 0 6px; border-radius: 10px; border: 1px solid transparent; background: transparent;
  color: var(--text); font: inherit; cursor: pointer; text-align: left; transition: background .15s, border-color .15s;
}
.gib-picker-btn:hover { background: rgba(255,255,255,.035); border-color: var(--line); }
.gib-picker-btn[aria-expanded="true"] { background: var(--surface-2); border-color: var(--line-2); }
.gib-picker-btn:focus-visible, .gib-top-btn:focus-visible, .gib-search-btn:focus-visible, .gib-profile-btn:focus-visible { outline: 2px solid var(--blue-glow); outline-offset: 1px; }
.gib-picker-tile {
  flex: none; width: 28px; height: 28px; border-radius: 8px; display: grid; place-items: center;
  font: 600 12.5px/1 var(--font-display); color: var(--sky);
  background: linear-gradient(140deg, #1B2C6E, #0B1236);
  box-shadow: inset 0 0 0 1px var(--line-blue), inset 0 1px 0 rgba(255,255,255,.08);
}
.gib-picker-tile .gib-i { width: 15px !important; height: 15px !important; }
.gib-picker-tile.is-research { background: linear-gradient(140deg, #232A3F, #151A28); color: var(--lav); box-shadow: inset 0 0 0 1px var(--line-2), inset 0 1px 0 rgba(255,255,255,.06); }
.gib-picker-tile.is-empty { background: var(--surface); color: var(--text-4); box-shadow: inset 0 0 0 1px dashed var(--line-2); }
.gib-picker-tile.is-study { --m: var(--series-1); background: color-mix(in srgb, var(--m) 16%, #10131C); color: var(--m); box-shadow: inset 0 0 0 1px color-mix(in srgb, var(--m) 45%, transparent), 0 0 14px -6px var(--m); }
.gib-picker-tile[data-method="controlled"] { --m: var(--series-2); }
.gib-picker-tile[data-method="product"] { --m: var(--series-6); }
.gib-picker-tile[data-method="process"] { --m: var(--series-4); }
.gib-picker-tile[data-method="video"] { --m: var(--series-3); }
.gib-picker-tile[data-method="probability"] { --m: var(--series-5); }
.gib-picker-text { display: flex; flex-direction: column; min-width: 0; gap: 1px; }
.gib-picker-k { font: 500 9.5px/12px var(--font-mono); letter-spacing: .09em; text-transform: uppercase; color: var(--text-4); white-space: nowrap; }
.gib-picker-v { font: 500 13px/17px var(--font-ui); color: var(--text); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; max-width: 210px; }
.gib-picker-v.is-muted { color: var(--text-3); }
.gib-picker-research .gib-picker-v { max-width: 230px; }
.gib-picker-study .gib-picker-v { max-width: 170px; }
.gib-picker-badges { display: flex; align-items: center; gap: 6px; flex: none; }
.gib-topbar .gib-picker-badges .gib-badge { font-size: 11px; line-height: 18px; height: 20px; padding: 0 7px; white-space: nowrap; }
.gib-picker-chev { width: 14px !important; height: 14px !important; color: var(--text-3); transition: transform .15s; }
.gib-picker-btn[aria-expanded="true"] .gib-picker-chev, .gib-profile-btn[aria-expanded="true"] .gib-picker-chev { transform: rotate(180deg); }

.gib-search-btn {
  margin-left: auto; flex: 0 4 330px; min-width: 188px; height: 38px; padding: 0 7px 0 12px;
  display: flex; align-items: center; gap: 10px; border-radius: 10px; cursor: pointer;
  background: linear-gradient(180deg, var(--surface), var(--bg-2)); border: 1px solid var(--line-2);
  color: var(--text-3); font: 400 13px/1 var(--font-ui); text-align: left; transition: border-color .15s, color .15s;
}
.gib-search-btn:hover { border-color: var(--line-blue); color: var(--text-2); }
.gib-search-l { flex: 1; min-width: 0; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.gib-topbar kbd, .gib-palette kbd {
  font: 500 10.5px/1 var(--font-mono); color: var(--text-3); padding: 4px 6px; border-radius: 5px;
  background: var(--surface-3); border: 1px solid var(--line-2); box-shadow: inset 0 -1px 0 rgba(0,0,0,.35); white-space: nowrap;
}
.gib-sample-pill {
  flex: none; display: inline-flex; align-items: center; gap: 6px; height: 24px; padding: 0 9px 0 8px; border-radius: 999px;
  border: 1px solid rgba(255,181,71,.3); background: rgba(255,181,71,.07); color: var(--amber);
  font: 500 11px/1 var(--font-ui); white-space: nowrap; cursor: help;
}
.gib-sample-pill::before { content: ""; width: 6px; height: 6px; border-radius: 50%; background: var(--amber); box-shadow: 0 0 8px var(--amber); }
.gib-top-btn {
  position: relative; flex: none; width: 38px; height: 38px; border-radius: 10px; display: grid; place-items: center;
  color: var(--text-2); background: transparent; border: 1px solid transparent; cursor: pointer; transition: background .15s, color .15s;
}
.gib-top-btn:hover, .gib-top-btn[aria-expanded="true"] { background: var(--surface-2); color: var(--text); border-color: var(--line); }
.gib-top-btn .gib-dot { position: absolute; top: 8px; right: 9px; width: 7px; height: 7px; border-radius: 50%; background: var(--pink); box-shadow: 0 0 0 2px var(--topbar), 0 0 8px var(--pink); }
.gib-picker-bell, .gib-picker-profile { flex: none; }
.gib-profile-btn {
  display: flex; align-items: center; gap: 8px; height: 38px; padding: 0 8px 0 10px; border-radius: 10px; cursor: pointer;
  background: transparent; border: 1px solid transparent; color: var(--text-2); font: 500 13px/1 var(--font-ui);
}
.gib-profile-btn:hover, .gib-profile-btn[aria-expanded="true"] { background: var(--surface-2); border-color: var(--line); color: var(--text); }
.gib-profile-btn .gib-profile-l { order: -1; }
.gib-profile-av {
  width: 28px; height: 28px; border-radius: 50%; display: grid; place-items: center; flex: none;
  font: 600 11px/1 var(--font-display); color: var(--text); border: 1.5px solid transparent;
  background: linear-gradient(var(--surface-3), var(--surface-3)) padding-box, linear-gradient(135deg, var(--blue-glow), var(--violet) 55%, var(--pink)) border-box;
}
.gib-profile-av.is-lg { width: 40px; height: 40px; font-size: 13px; border-width: 2px; }

/* ---------------------------------------------------------------- popovers (shell-owned) */
.gib-topbar .gib-popover, .gib-subnav .gib-popover {
  position: absolute; top: calc(100% + 8px); left: 0; z-index: 60; width: 360px; max-width: calc(100vw - 24px);
  max-height: min(520px, calc(100vh - var(--topbar-h) - 24px)); overflow: auto; overscroll-behavior: contain;
  padding: 6px; border-radius: var(--radius); text-align: left;
  background: rgba(22,26,38,.97); border: 1px solid var(--line-2);
  -webkit-backdrop-filter: blur(20px); backdrop-filter: blur(20px);
  box-shadow: var(--shadow-float), inset 0 1px 0 rgba(255,255,255,.05);
  font: 400 13px/18px var(--font-ui); color: var(--text-2);
  animation: gib-pop-in .14s ease-out;
}
.gib-picker-bell .gib-popover, .gib-picker-profile .gib-popover { left: auto; right: 0; }
.gib-picker-profile .gib-popover { width: 290px; }
.gib-picker-research .gib-popover, .gib-picker-study .gib-popover { width: 420px; }
@keyframes gib-pop-in { from { opacity: 0; transform: translateY(-4px); } to { opacity: 1; transform: none; } }
.gib-pop-h {
  display: flex; align-items: center; justify-content: space-between; gap: 10px; padding: 8px 10px 8px;
  font: 500 10.5px/14px var(--font-mono); letter-spacing: .08em; text-transform: uppercase; color: var(--text-3);
}
.gib-pop-h > span:first-child { min-width: 0; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.gib-pop-n { flex: none; padding: 1px 7px; border-radius: 999px; background: rgba(45,107,255,.16); color: var(--sky); letter-spacing: 0; }
.gib-pop-search {
  display: flex; align-items: center; gap: 8px; margin: 0 4px 6px; padding: 0 10px; height: 36px; border-radius: var(--radius-sm);
  background: var(--bg-1); border: 1px solid var(--line-2); color: var(--text-3);
}
.gib-pop-search:focus-within { border-color: var(--line-blue); box-shadow: 0 0 0 3px rgba(45,107,255,.15); }
.gib-pop-search .gib-i { width: 15px; height: 15px; }
.gib-pop-search input { flex: 1; min-width: 0; height: 100%; background: none; border: 0; outline: 0; color: var(--text); font: 400 13px var(--font-ui); }
.gib-pop-search input::placeholder { color: var(--text-4); }
.gib-pop-filters { display: flex; flex-wrap: wrap; gap: 6px; padding: 0 6px 8px; }
.gib-pop-chip {
  height: 24px; padding: 0 10px; border-radius: 999px; cursor: pointer; font: 500 11.5px/1 var(--font-ui);
  background: var(--surface); color: var(--text-3); border: 1px solid var(--line-2);
}
.gib-pop-chip:hover { color: var(--text); }
.gib-pop-chip[aria-pressed="true"] { background: rgba(45,107,255,.16); color: var(--sky); border-color: var(--line-blue); }
.gib-pop-list { display: flex; flex-direction: column; gap: 2px; }
.gib-pop-item {
  display: flex; align-items: center; gap: 11px; width: 100%; padding: 8px 10px; border-radius: 9px; border: 1px solid transparent;
  background: none; color: var(--text-2); font: inherit; text-align: left; text-decoration: none; cursor: pointer;
}
.gib-pop-item:hover, .gib-pop-item:focus-visible { background: var(--surface-3); color: var(--text); outline: 0; }
.gib-pop-item:focus-visible { border-color: var(--line-blue); }
.gib-pop-item[aria-current="true"] { background: rgba(45,107,255,.1); border-color: rgba(61,107,255,.25); }
.gib-pop-item > .gib-i { width: 17px; height: 17px; color: var(--text-3); flex: none; }
.gib-pop-item.is-compact { padding: 8px 10px; }
.gib-pop-main { display: flex; flex-direction: column; gap: 4px; min-width: 0; flex: 1; }
.gib-pop-t { color: var(--text); font-weight: 500; font-size: 13px; line-height: 17px; overflow: hidden; text-overflow: ellipsis; }
.gib-pop-t b { font-weight: 600; }
.gib-pop-t .gib-hl { color: var(--lav); }
.gib-pop-m { display: flex; flex-wrap: wrap; align-items: center; gap: 4px 8px; color: var(--text-3); font-size: 11.5px; line-height: 16px; }
.gib-pop-m > span:not(.gib-badge) { white-space: nowrap; max-width: 100%; overflow: hidden; text-overflow: ellipsis; }
.gib-pop-activity { width: 380px; max-height: min(640px, calc(100vh - var(--topbar-h) - 24px)) !important; }
.gib-pop-activity .gib-pop-item { padding: 7px 10px; align-items: flex-start; }
.gib-pop-activity .gib-pop-av { margin-top: 1px; }
.gib-pop-activity .gib-pop-t { font-weight: 400; color: var(--text-2); display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; }
.gib-pop-activity .gib-pop-t b { color: var(--text); font-weight: 500; }
.gib-pop-activity .gib-pop-main { gap: 2px; }
.gib-pop-m > span:not(.gib-badge) + span:not(.gib-badge)::before { content: "·"; margin-right: 8px; color: var(--text-4); }
.gib-pop-m .gib-badge { font-size: 10.5px; line-height: 16px; height: 18px; padding: 0 6px; }
.gib-pop-check { width: 16px !important; height: 16px !important; color: var(--sky); flex: none; opacity: 0; }
.gib-pop-item[aria-current="true"] .gib-pop-check { opacity: 1; }
.gib-pop-av {
  flex: none; width: 30px; height: 30px; border-radius: 50%; display: grid; place-items: center;
  font: 600 10.5px/1 var(--font-display); color: var(--sky); background: rgba(45,107,255,.14); box-shadow: inset 0 0 0 1px var(--line-blue);
}
.gib-pop-note { margin: 0 10px 8px; color: var(--text-4); font-size: 11.5px; line-height: 16px; }
.gib-pop-empty { margin: 0; padding: 14px 10px; color: var(--text-3); font-size: 12.5px; }
.gib-pop-f {
  display: flex; flex-wrap: wrap; gap: 4px; margin: 6px -6px -6px; padding: 6px; border-top: 1px solid var(--line);
  background: rgba(0,0,0,.14); border-radius: 0 0 var(--radius) var(--radius);
}
.gib-pop-f a {
  display: inline-flex; align-items: center; gap: 8px; height: 32px; padding: 0 10px; border-radius: 8px;
  color: var(--sky); font: 500 12.5px/1 var(--font-ui); text-decoration: none;
}
.gib-pop-f a:hover { background: rgba(45,107,255,.12); }
.gib-pop-f .gib-i { width: 15px; height: 15px; }
.gib-pop-user { display: flex; align-items: center; gap: 12px; padding: 10px 10px 12px; border-bottom: 1px solid var(--line); margin-bottom: 6px; }
.gib-pop-user > span:last-child { display: flex; flex-direction: column; gap: 2px; min-width: 0; font-size: 12px; color: var(--text-3); }
.gib-pop-user b { color: var(--text); font: 600 14px/18px var(--font-display); }
.gib-pop-role { color: var(--lav) !important; }

/* ---------------------------------------------------------------- sub-nav */
.gib-subnav {
  position: relative; z-index: 20; display: flex; align-items: center; gap: 4px; min-height: 48px; padding: 0 32px;
  border-bottom: 1px solid var(--line);
  background: linear-gradient(180deg, rgba(15,18,27,.92), rgba(12,15,22,.55));
  font-family: var(--font-ui);
}
.gib-subnav-sec {
  flex: none; display: inline-flex; align-items: center; gap: 8px; height: 22px; margin-right: 10px; padding-right: 16px;
  color: var(--text-3); font: 500 12px/1 var(--font-ui); white-space: nowrap; border-right: 1px solid var(--line-2);
}
.gib-subnav-sec .gib-i { width: 16px; height: 16px; color: var(--lav-2); }
.gib-subnav .gib-subnav-tabs {
  flex: 0 1 auto; min-width: 0; display: flex; align-items: stretch; gap: 2px; margin: 0; padding: 0;
  border: 0; background: none; box-shadow: none; overflow: hidden;
}
.gib-subnav .gib-tab {
  position: relative; flex: none; display: inline-flex; align-items: center; gap: 8px; height: 48px; padding: 0 12px; margin: 0;
  color: var(--text-3); background: none; border: 0; border-radius: 0; box-shadow: none;
  font: 500 13px/1 var(--font-ui); text-decoration: none; white-space: nowrap; cursor: pointer; transition: color .15s;
}
.gib-subnav .gib-tab:hover { color: var(--text); }
.gib-subnav .gib-tab:focus-visible { outline: 2px solid var(--blue-glow); outline-offset: -6px; border-radius: 8px; }
.gib-subnav .gib-tab[aria-current] { color: var(--sky); background: none; }
.gib-subnav .gib-tab[aria-current]::after {
  content: ""; position: absolute; left: 12px; right: 12px; bottom: -1px; height: 2px; border-radius: 2px 2px 0 0;
  background: var(--blue-glow); box-shadow: 0 0 10px rgba(45,107,255,.9), 0 0 2px rgba(141,202,254,.9);
}
.gib-subnav .gib-tab .gib-count {
  display: inline-flex; align-items: center; height: 18px; padding: 0 7px; border-radius: 999px;
  background: rgba(255,255,255,.06); color: var(--text-3); font: 500 11px/1 var(--font-mono); font-variant-numeric: tabular-nums;
}
.gib-subnav .gib-tab[aria-current] .gib-count { background: rgba(45,107,255,.2); color: var(--sky); }
.gib-subnav-crumb {
  flex: none; display: inline-flex; align-items: center; gap: 6px; padding: 0 12px 0 2px; align-self: center;
  color: var(--text); font: 500 13px/1 var(--font-ui); white-space: nowrap;
}
.gib-subnav-crumb .gib-i { width: 14px; height: 14px; color: var(--text-4); }
.gib-subnav-more { flex: none; position: relative; }
.gib-subnav-more-btn .gib-i { width: 14px; height: 14px; }
.gib-subnav-more .gib-popover { left: auto; right: 0; top: calc(100% + 4px); width: 380px; }

/* ---------------------------------------------------------------- footer */
.gib-footer {
  display: grid; grid-template-columns: minmax(0, 1.6fr) minmax(0, .7fr) minmax(0, .7fr) minmax(0, 1fr);
  align-items: start; gap: 18px 36px; padding: 22px 32px 20px; margin-top: 8px;
  border-top: 1px solid var(--line);
  background: linear-gradient(180deg, rgba(9,11,17,0), rgba(9,11,17,.7));
  color: var(--text-3); font: 400 12px/18px var(--font-ui);
}
.gib-footer p { margin: 0; }
.gib-footer-brand { display: flex; align-items: flex-start; gap: 14px; min-width: 0; }
.gib-footer-brand img { flex: none; width: 30px; height: 30px; opacity: .9; }
.gib-footer-claim { font: 600 15px/20px var(--font-display) !important; color: var(--text); letter-spacing: -.005em; margin-bottom: 4px !important; }
.gib-footer-desc { max-width: 380px; color: var(--text-3); }
.gib-footer-col { display: flex; flex-direction: column; gap: 3px; min-width: 0; }
.gib-footer-h { font: 500 10px/14px var(--font-mono) !important; letter-spacing: .1em; text-transform: uppercase; color: var(--text-4); margin-bottom: 4px !important; }
.gib-footer-col a { color: var(--text-2); text-decoration: none; width: fit-content; }
.gib-footer-col a:hover { color: var(--sky); }
.gib-footer-meta { display: flex; flex-direction: column; align-items: flex-end; gap: 3px; text-align: right; }
.gib-footer-sig { font: 600 13px/18px var(--font-display); letter-spacing: .32em; color: var(--text-2); margin-right: -.32em; }
.gib-footer-note { color: var(--amber); opacity: .8; font-size: 11px; }

/* ---------------------------------------------------------------- command palette */
dialog.gib-dialog.gib-palette {
  position: fixed; inset: 0; margin: 11vh auto auto; padding: 0; width: min(680px, calc(100vw - 32px)); max-width: none;
  max-height: min(620px, 78vh); display: none; flex-direction: column; overflow: hidden;
  border-radius: var(--radius-lg); border: 1px solid var(--line-2); color: var(--text-2);
  background: rgba(20,24,36,.97);
  box-shadow: var(--shadow-float), 0 0 0 1px rgba(61,107,255,.18), 0 0 60px -20px rgba(45,107,255,.5);
  font: 400 13px/18px var(--font-ui);
}
dialog.gib-dialog.gib-palette[open] { display: flex; animation: gib-pop-in .14s ease-out; }
dialog.gib-dialog.gib-palette::backdrop { background: rgba(4,6,12,.62); -webkit-backdrop-filter: blur(3px); backdrop-filter: blur(3px); }
.gib-palette-search { flex: none; display: flex; align-items: center; gap: 12px; height: 56px; padding: 0 16px; border-bottom: 1px solid var(--line-2); }
.gib-palette-search > .gib-i { width: 19px; height: 19px; color: var(--sky); flex: none; }
.gib-palette-search input { flex: 1; min-width: 0; height: 100%; background: none; border: 0; outline: 0; color: var(--text); font: 400 15.5px var(--font-ui); }
.gib-palette-search input::placeholder { color: var(--text-4); }
.gib-palette-list { flex: 1; min-height: 0; overflow: auto; overscroll-behavior: contain; padding: 6px 8px 8px; }
.gib-palette-group {
  display: flex; align-items: center; justify-content: space-between; padding: 10px 10px 6px;
  font: 500 10.5px/14px var(--font-mono); letter-spacing: .09em; text-transform: uppercase; color: var(--text-4);
}
.gib-palette-group span { letter-spacing: 0; color: var(--text-3); }
.gib-palette-item {
  display: flex; align-items: center; gap: 12px; padding: 8px 10px; border-radius: 10px; border: 1px solid transparent;
  text-decoration: none; color: var(--text-2); outline: 0;
}
.gib-palette-item[aria-selected="true"] { background: linear-gradient(90deg, rgba(45,107,255,.2), rgba(45,107,255,.06)); border-color: rgba(61,107,255,.35); }
.gib-palette-ic {
  flex: none; width: 32px; height: 32px; border-radius: 9px; display: grid; place-items: center;
  background: var(--surface-2); color: var(--lav); box-shadow: inset 0 0 0 1px var(--line-2);
}
.gib-palette-ic .gib-i { width: 16px; height: 16px; }
.gib-palette-item[aria-selected="true"] .gib-palette-ic { color: var(--sky); box-shadow: inset 0 0 0 1px var(--line-blue), 0 0 14px -4px rgba(45,107,255,.8); }
.gib-palette-main { flex: 1; min-width: 0; display: flex; flex-direction: column; gap: 2px; }
.gib-palette-t { display: flex; align-items: center; gap: 8px; color: var(--text); font-weight: 500; font-size: 13.5px; line-height: 18px; }
.gib-palette-tt { min-width: 0; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.gib-palette-t mark { background: none; color: var(--sky); text-decoration: underline; text-decoration-color: rgba(141,202,254,.5); text-underline-offset: 3px; }
.gib-palette-here { font: 500 10px/1 var(--font-mono); padding: 3px 6px; border-radius: 999px; background: rgba(63,191,138,.14); color: var(--mint); }
.gib-palette-d { color: var(--text-3); font-size: 12px; line-height: 16px; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.gib-palette-g { flex: none; color: var(--text-4); font: 500 11px/1 var(--font-ui); white-space: nowrap; }
.gib-palette-empty { margin: 0; padding: 28px 16px; text-align: center; color: var(--text-3); }
.gib-palette-f {
  flex: none; display: flex; align-items: center; gap: 16px; padding: 10px 16px; border-top: 1px solid var(--line);
  color: var(--text-4); font-size: 11.5px; background: rgba(0,0,0,.18);
}
.gib-palette-f kbd { margin-right: 3px; padding: 3px 5px; }
.gib-palette-n { margin-left: auto; font-family: var(--font-mono); }

/* ---------------------------------------------------------------- toasts (surface styles live in gib.css) */
.gib-toasts { z-index: 1000; }
.gib-toasts > .gib-toast { width: 380px; padding-right: 8px; }
.gib-toasts > .gib-toast.is-leaving { opacity: 0; transform: translateX(12px); transition: opacity .2s, transform .2s; }
.gib-toast-ic { width: 17px !important; height: 17px !important; flex: none; }
.gib-toast-m { flex: 1; min-width: 0; }
.gib-toast-x { flex: none; width: 24px; height: 24px; display: grid; place-items: center; border-radius: 6px; border: 0; background: none; color: var(--text-3); cursor: pointer; }
.gib-toast-x:hover { background: var(--surface-3); color: var(--text); }
.gib-toast-x .gib-i { width: 14px; height: 14px; }

/* ---------------------------------------------------------------- auth layout (login / register) */
body[data-page="login"] .gib-page, body[data-page="register"] .gib-page { padding: 0; max-width: none; }
body.gib-auth > .gib-main { margin-left: 0; display: flex; flex-direction: column; min-height: 100vh; }
.gib-auth-shell {
  min-height: 100vh; display: grid; grid-template-columns: minmax(0, 1.12fr) minmax(440px, .88fr);
  background: var(--bg);
}
.gib-auth-visual {
  position: relative; overflow: hidden; isolation: isolate; min-height: 560px;
  display: flex; flex-direction: column; justify-content: space-between; gap: 24px; padding: 36px 44px 40px;
  background:
    radial-gradient(70% 55% at 62% 42%, rgba(0,60,245,.45), transparent 70%),
    radial-gradient(40% 35% at 18% 88%, rgba(255,45,120,.16), transparent 70%),
    linear-gradient(155deg, #04060F 0%, #081033 48%, #0A0E1D 100%);
  border-right: 1px solid var(--line);
}
.gib-auth-visual::after {
  content: ""; position: absolute; inset: 0; z-index: -1; pointer-events: none;
  background-image: linear-gradient(rgba(255,255,255,.035) 1px, transparent 1px), linear-gradient(90deg, rgba(255,255,255,.035) 1px, transparent 1px);
  background-size: 48px 48px; mask-image: radial-gradient(80% 70% at 55% 45%, #000, transparent 75%);
}
.gib-auth-visual > .gib-stage { position: absolute; inset: 0; z-index: 0; height: auto; min-height: 0; border: 0; border-radius: 0; background: none; box-shadow: none; }
.gib-auth-visual > :not(.gib-stage) { position: relative; z-index: 1; }
.gib-auth-brand { display: inline-flex; align-items: center; gap: 12px; color: var(--text); text-decoration: none; }
.gib-auth-brand img { width: 34px; height: 34px; filter: drop-shadow(0 0 12px rgba(45,107,255,.6)); }
.gib-auth-brand b { font: 600 18px/1 var(--font-display); letter-spacing: .3em; }
.gib-auth-brand small { display: block; margin-top: 5px; font: 500 9px/1 var(--font-mono); letter-spacing: .22em; color: var(--text-3); text-transform: uppercase; }
.gib-auth-claim { margin: 0; max-width: 560px; font: 300 clamp(36px, 4.2vw, 56px)/1.04 var(--font-display); letter-spacing: -.02em; color: var(--lav); }
.gib-auth-claim b { font-weight: 600; color: var(--text); }
.gib-auth-facts { display: flex; flex-wrap: wrap; gap: 10px; }
.gib-auth-facts > * {
  display: flex; flex-direction: column; gap: 2px; padding: 10px 14px; border-radius: var(--radius);
  background: rgba(15,20,40,.55); border: 1px solid rgba(255,255,255,.08); -webkit-backdrop-filter: blur(10px); backdrop-filter: blur(10px);
  color: var(--text-3); font: 400 11.5px/15px var(--font-ui);
}
.gib-auth-facts b { font: 600 22px/1.1 var(--font-display); color: var(--text); font-variant-numeric: tabular-nums; }
.gib-auth-panel {
  display: flex; flex-direction: column; justify-content: center; gap: 20px; padding: 48px clamp(24px, 5vw, 72px);
  background: linear-gradient(180deg, var(--bg-1), var(--bg));
}
.gib-auth-panel > * { width: 100%; max-width: 440px; margin-inline: auto; }
.gib-auth-card {
  padding: 32px; border-radius: var(--radius-lg); background: var(--surface); border: 1px solid var(--line-2);
  box-shadow: inset 0 1px 0 rgba(255,255,255,.05), 0 30px 60px -30px rgba(0,0,0,.8);
}
body.gib-auth .gib-footer { margin-top: 0; }

/* ---------------------------------------------------------------- responsive */
@media (min-width: 1680px) {
  .gib-picker-v { max-width: 260px; }
  .gib-picker-study .gib-picker-v { max-width: 220px; }
}
@media (max-width: 1599px) {
  .gib-profile-l { display: none; }
  .gib-topbar[data-scope="study"] .gib-picker-workspace .gib-picker-text { display: none; }
  .gib-topbar[data-scope="study"] .gib-picker-workspace .gib-picker-btn { gap: 6px; }
  .gib-topbar[data-scope="study"] { gap: 6px; }
  .gib-topbar[data-scope="study"] .gib-search-btn kbd { display: none; }
  .gib-topbar[data-scope="study"] .gib-search-btn { min-width: 160px; }
}
@media (max-width: 1279px) {
  .gib-topbar[data-scope="research"] .gib-picker-workspace .gib-picker-text { display: none; }
  .gib-picker-research .gib-picker-v { max-width: 180px; }
  .gib-picker-study .gib-picker-v { max-width: 130px; }
  .gib-search-btn { flex-basis: 240px; }
  .gib-footer { grid-template-columns: minmax(0, 1.4fr) minmax(0, .8fr) minmax(0, .8fr); }
  .gib-footer-meta { grid-column: 1 / -1; flex-direction: row; flex-wrap: wrap; justify-content: space-between; align-items: center; text-align: left; padding-top: 12px; border-top: 1px solid var(--line); }
}
@media (max-width: 1099px) {
  .gib-crumbs, .gib-topbar[data-scope] .gib-crumbs { max-width: calc(100% - 290px); }
  .gib-search-l, .gib-search-btn kbd { display: none; }
  .gib-topbar .gib-search-btn, .gib-topbar[data-scope] .gib-search-btn { flex: none; width: 38px; min-width: 38px; padding: 0; justify-content: center; }
  .gib-topbar[data-scope="study"] .gib-picker-badges .gib-badge:last-child { display: none; }
  .gib-subnav-sec { display: none; }
}
@media (max-width: 959px) {
  .gib-sample-pill { display: none; }
  .gib-crumbs, .gib-topbar[data-scope] .gib-crumbs { max-width: calc(100% - 180px); }
  .gib-auth-shell { grid-template-columns: 1fr; }
  .gib-auth-visual { min-height: 340px; border-right: 0; border-bottom: 1px solid var(--line); }
}

/* phones: rail becomes an off-canvas drawer, pickers collapse to the deepest scope */
@media (max-width: 759px) {
  body[data-page]:not([data-page="login"]):not([data-page="register"]):not([data-shell="off"]) > .gib-main,
  body[data-page]:not([data-page="login"]):not([data-page="register"]):not([data-shell="off"]) > .gib-topbar { margin-left: 0; }
  .gib-topbar { gap: 4px; padding: 0 10px 0 8px; height: 56px; }
  .gib-menu-btn { display: grid !important; }
  .gib-crumbs, .gib-topbar[data-scope] .gib-crumbs { flex: 1 1 auto; max-width: none; }
  .gib-crumbs .gib-picker:not(.is-deepest), .gib-crumb-sep { display: none; }
  .gib-crumbs .gib-picker.is-deepest { flex: 1 1 auto; }
  .gib-picker-btn { height: 42px; gap: 8px; padding: 0 6px; width: 100%; }
  .gib-crumbs .gib-picker-text { display: flex !important; flex: 1; }
  .gib-picker-v, .gib-picker-research .gib-picker-v, .gib-picker-study .gib-picker-v { max-width: none; }
  .gib-picker-badges { display: none; }
  .gib-picker-tile { width: 26px; height: 26px; }
  .gib-profile-btn { padding: 0 4px; }
  .gib-profile-btn .gib-picker-chev { display: none; }
  .gib-topbar .gib-popover, .gib-picker-research .gib-popover, .gib-picker-study .gib-popover, .gib-picker-profile .gib-popover {
    position: fixed; top: 62px; left: 8px; right: 8px; width: auto; max-width: none; max-height: calc(100vh - 76px);
  }

  .gib-rail {
    width: min(300px, 86vw); transform: translateX(-102%); transition: transform .24s cubic-bezier(.2,.7,.2,1), visibility 0s .24s;
    visibility: hidden; z-index: 70; box-shadow: 30px 0 60px -20px rgba(0,0,0,.8);
  }
  body.gib-rail-open .gib-rail { transform: none; visibility: visible; transition: transform .24s cubic-bezier(.2,.7,.2,1); }
  .gib-rail-scrim { display: block; position: fixed; inset: 0; z-index: 65; background: rgba(3,5,10,.6); opacity: 0; pointer-events: none; transition: opacity .2s; }
  body.gib-rail-open .gib-rail-scrim { opacity: 1; pointer-events: auto; }
  body.gib-rail-open { overflow: hidden; }
  .gib-rail-brand { flex-direction: row; justify-content: flex-start; gap: 10px; padding: 0 18px; height: 60px; }
  .gib-rail-brand span { font-size: 12px; }
  .gib-rail-ctx { display: flex; flex-direction: column; gap: 2px; padding: 12px 18px; border-bottom: 1px solid var(--line); font: 500 12.5px/17px var(--font-ui); color: var(--text); }
  .gib-rail-ctx b { font-weight: 500; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; margin-bottom: 6px; }
  .gib-rail-group { align-items: stretch; padding: 0 10px; }
  .gib-rail-group.is-bottom::before { left: 18px; right: 18px; }
  .gib-rail-item { width: auto; min-height: 44px; flex-direction: row; justify-content: flex-start; gap: 12px; padding: 0 12px; }
  .gib-rail-item[aria-current]::before { left: -10px; top: 10px; bottom: 10px; }
  .gib-rail-l { display: none; }
  .gib-rail-t { display: block; font: 500 13.5px/1.2 var(--font-ui); }
  .gib-rail-avatar { margin: 10px 18px 16px; }

  .gib-subnav { padding: 0 8px; min-height: 44px; overflow-x: auto; scrollbar-width: none; }
  .gib-subnav::-webkit-scrollbar { display: none; }
  .gib-subnav .gib-subnav-tabs { overflow: visible; }
  .gib-subnav .gib-tab { height: 44px; padding: 0 10px; font-size: 12.5px; }
  .gib-subnav .gib-tab[aria-current]::after { left: 10px; right: 10px; }
  .gib-subnav-more { display: none !important; }

  .gib-footer { grid-template-columns: 1fr 1fr; gap: 16px 20px; padding: 20px 16px 22px; }
  .gib-footer-brand { grid-column: 1 / -1; }
  .gib-footer-col a { padding: 4px 0; }
  .gib-footer-meta { grid-column: 1 / -1; }

  .gib-toasts > .gib-toast { width: auto; }
  dialog.gib-dialog.gib-palette { margin-top: 12px; max-height: calc(100vh - 24px); }
  .gib-palette-g, .gib-palette-f > span:not(.gib-palette-n) { display: none; }

  .gib-auth-visual { min-height: 280px; padding: 20px 16px 24px; }
  .gib-auth-panel { padding: 28px 16px 40px; }
  .gib-auth-card { padding: 22px 18px; }
}

@media (prefers-reduced-motion: reduce) {
  .gib-topbar .gib-popover, .gib-subnav .gib-popover, dialog.gib-dialog.gib-palette[open] { animation: none; }
  .gib-rail, .gib-rail-scrim { transition: none !important; }
}