/* Gallery shell — drives variant/breakpoint/mode toggles around the iframe preview */

/* The HTML [hidden] attribute must actually hide elements, even when a class rule
   sets display: flex/grid/block. Without !important the class wins. */
[hidden] { display: none !important; }

:root {
  --g-bar-h: 56px;
  --g-footer-h: 40px;
  --g-bg: var(--wf-surface-2);
}
[data-mode="dark"] { --g-bg: #0D131C; }

body {
  background: var(--g-bg);
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

/* Top bar */
.g-bar {
  position: sticky; top: 0; z-index: 20;
  display: flex; align-items: center; gap: var(--wf-s-4);
  padding: var(--wf-s-2) var(--wf-s-4);
  min-height: var(--g-bar-h);
  background: var(--wf-bg);
  border-bottom: 1px solid var(--wf-line);
  flex-wrap: wrap;
}
.g-brand { display: inline-flex; align-items: center; gap: var(--wf-s-2); font-weight: 600; color: var(--wf-text-strong); flex-shrink: 0; }
.g-brand-mark { width: 24px; height: 24px; background: var(--wf-text-strong); border-radius: var(--wf-r-sm); }
.g-brand-text { white-space: nowrap; }
.g-version { font-size: var(--wf-fs-small); font-weight: 400; color: var(--wf-text-faint); margin-left: var(--wf-s-2); white-space: nowrap; }

.g-toggles { display: flex; align-items: center; gap: var(--wf-s-2); flex-wrap: wrap; }
.g-toggle-group { display: inline-flex; gap: 2px; padding: 2px; background: var(--wf-surface-2); border: 1px solid var(--wf-line); border-radius: var(--wf-r-pill); }

.g-chip {
  display: inline-flex; align-items: center; justify-content: center;
  min-width: 30px; min-height: 28px; padding: 0 var(--wf-s-3);
  font-size: var(--wf-fs-small); font-weight: 500;
  border: 1px solid transparent; background: transparent; color: var(--wf-text-muted);
  border-radius: var(--wf-r-pill); cursor: pointer; white-space: nowrap;
}
.g-chip:hover { color: var(--wf-text-strong); background: var(--wf-bg); }
.g-chip--active { background: var(--wf-text-strong); color: var(--wf-bg); }
.g-chip--active:hover { background: var(--wf-ink); color: var(--wf-bg); }
.g-chip--action { background: var(--wf-surface); border-color: var(--wf-line); }
.g-chip--cta { background: var(--wf-text-strong); color: var(--wf-bg); border-color: var(--wf-text-strong); padding: 0 var(--wf-s-4); }
.g-chip--cta:hover { background: var(--wf-ink); }

.g-select {
  min-height: 28px; padding: 0 var(--wf-s-3); border: 1px solid var(--wf-line);
  background: var(--wf-surface); color: var(--wf-text); border-radius: var(--wf-r-pill);
  font-size: var(--wf-fs-small); cursor: pointer;
  max-width: 260px;
}

/* Stage */
.g-stage {
  flex: 1;
  display: flex;
  align-items: flex-start;
  justify-content: center;
  padding: var(--wf-s-5) var(--wf-s-4);
  overflow: auto;
}
.g-frame-wrap {
  position: relative;
  background: var(--wf-bg);
  border: 1px solid var(--wf-line);
  border-radius: var(--wf-r-lg);
  box-shadow: var(--wf-shadow-md);
  overflow: hidden;
  transition: width 0.2s ease;
}
.g-frame {
  display: block;
  width: 100%;
  height: calc(100vh - var(--g-bar-h) - var(--g-footer-h) - var(--wf-s-6));
  border: 0;
  background: var(--wf-bg);
}
.g-frame-meta {
  position: absolute; right: 8px; bottom: 8px; z-index: 1;
  padding: 2px var(--wf-s-2); border-radius: var(--wf-r-sm);
  background: rgba(0,0,0,0.6); color: #fff; font-size: 10px;
  pointer-events: none; letter-spacing: 0.02em;
}

/* Breakpoint sizing */
body[data-breakpoint="mobile"] .g-frame-wrap { width: 375px; }
body[data-breakpoint="tablet"] .g-frame-wrap { width: 768px; }
body[data-breakpoint="desktop"] .g-frame-wrap { width: 1440px; max-width: 100%; }

@media (max-width: 1500px) {
  body[data-breakpoint="desktop"] .g-frame-wrap { width: 100%; }
}

/* Fullscreen */
body.g-fullscreen .g-bar { display: none; }
body.g-fullscreen .g-footer { display: none; }
body.g-fullscreen .g-stage { padding: 0; }
body.g-fullscreen .g-frame { height: 100vh; }
body.g-fullscreen .g-frame-wrap { border-radius: 0; border: 0; box-shadow: none; }

/* Compare view — 5 variants side-by-side */
body.g-compare-mode .g-frame-wrap { display: none; }
body:not(.g-compare-mode) .g-compare { display: none !important; }
.g-compare {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: var(--wf-s-3);
  width: 100%;
  padding: var(--wf-s-3);
  align-items: stretch;
}
.g-compare-col {
  background: var(--wf-bg);
  border: 1px solid var(--wf-line);
  border-radius: var(--wf-r-md);
  overflow: hidden;
  display: flex;
  flex-direction: column;
  cursor: pointer;
  transition: box-shadow 0.15s ease, transform 0.15s ease;
}
.g-compare-col:hover { box-shadow: var(--wf-shadow-md); transform: translateY(-2px); }
.g-compare-label {
  padding: 6px 10px;
  font-size: 11px;
  font-weight: 600;
  color: var(--wf-text-strong);
  background: var(--wf-surface);
  border-bottom: 1px solid var(--wf-line);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.g-compare-frame {
  flex: 1;
  width: 100%;
  border: 0;
  min-height: calc(100vh - var(--g-bar-h) - var(--g-footer-h) - 80px);
  background: var(--wf-bg);
  pointer-events: none;
}
@media (max-width: 1100px) {
  .g-compare { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 600px) {
  .g-compare { grid-template-columns: 1fr; }
}

/* Feedback / Approve mode sticky banner */
.g-mode-banner {
  position: sticky; top: var(--g-bar-h); z-index: 15;
  display: flex; align-items: center; gap: var(--wf-s-3);
  padding: var(--wf-s-2) var(--wf-s-4);
  background: var(--wf-text-strong);
  color: var(--wf-bg);
  font-size: var(--wf-fs-small);
  flex-wrap: wrap;
}
.g-mode-banner-text { flex: 1; }
.g-mode-banner .g-chip { background: rgba(255,255,255,0.08); color: var(--wf-bg); border-color: rgba(255,255,255,0.2); }
.g-mode-banner .g-chip:hover { background: rgba(255,255,255,0.16); color: var(--wf-bg); }

/* Submission modal */
.g-fb-modal-backdrop {
  position: fixed; inset: 0; z-index: 40;
  background: rgba(17,24,39,0.55);
  display: flex; align-items: center; justify-content: center;
  padding: var(--wf-s-4);
}
.g-fb-modal {
  width: 100%; max-width: 480px;
  background: var(--wf-bg);
  border: 1px solid var(--wf-line);
  border-radius: var(--wf-r-lg);
  box-shadow: var(--wf-shadow-lg);
  display: flex; flex-direction: column;
  max-height: 90vh; overflow: hidden;
}
.g-fb-modal-head {
  display: flex; align-items: center; justify-content: space-between;
  padding: var(--wf-s-4) var(--wf-s-4) var(--wf-s-3);
  border-bottom: 1px solid var(--wf-line);
}
.g-fb-modal-title { margin: 0; font-size: 16px; color: var(--wf-text-strong); }
.g-fb-modal-body {
  padding: var(--wf-s-4);
  overflow: auto;
  display: flex; flex-direction: column; gap: var(--wf-s-2);
}
.g-fb-context {
  font-size: 11px;
  color: var(--wf-text-faint);
  padding: var(--wf-s-2) var(--wf-s-3);
  background: var(--wf-surface-2);
  border-radius: var(--wf-r-sm);
  font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
  margin-bottom: var(--wf-s-2);
  word-break: break-all;
}
.g-fb-label { font-size: var(--wf-fs-small); color: var(--wf-text-muted); margin-top: var(--wf-s-2); }
.g-fb-input, .g-fb-textarea {
  width: 100%; padding: var(--wf-s-2) var(--wf-s-3);
  border: 1px solid var(--wf-line);
  border-radius: var(--wf-r-md);
  background: var(--wf-bg); color: var(--wf-text);
  font: inherit; font-size: var(--wf-fs-body);
}
.g-fb-textarea { resize: vertical; min-height: 96px; }
.g-fb-approve-opts { display: flex; flex-direction: column; gap: var(--wf-s-2); padding: var(--wf-s-2) 0; }
.g-fb-radio { display: inline-flex; align-items: center; gap: var(--wf-s-2); font-size: var(--wf-fs-body); cursor: pointer; }
.g-fb-modal-actions {
  display: flex; justify-content: flex-end; gap: var(--wf-s-2);
  padding: var(--wf-s-3) var(--wf-s-4);
  border-top: 1px solid var(--wf-line);
}

/* Body flag while in selection mode (future styling hook) */
body.g-selection-mode .g-frame-wrap { outline: 2px solid var(--wf-text-strong); }

/* Copy-link toast notice */
.g-toast-notice {
  position: fixed;
  bottom: calc(var(--g-footer-h) + var(--wf-s-3));
  right: var(--wf-s-4);
  padding: var(--wf-s-2) var(--wf-s-4);
  background: var(--wf-text-strong);
  color: var(--wf-bg);
  border-radius: var(--wf-r-pill);
  font-size: var(--wf-fs-small);
  box-shadow: var(--wf-shadow-md);
  z-index: 30;
  animation: g-toast-in 0.2s ease;
}
@keyframes g-toast-in {
  from { opacity: 0; transform: translateY(6px); }
  to { opacity: 1; transform: translateY(0); }
}

/* Empty state */
.g-empty {
  max-width: 480px; text-align: center; padding: var(--wf-s-8) var(--wf-s-4);
  color: var(--wf-text-muted);
}
.g-empty-title { font-size: 18px; font-weight: 600; color: var(--wf-text-strong); margin-bottom: var(--wf-s-2); }
.g-empty-sub { font-size: var(--wf-fs-body); }

/* Footer */
.g-footer {
  min-height: var(--g-footer-h);
  background: var(--wf-bg);
  border-top: 1px solid var(--wf-line);
  padding: var(--wf-s-2) var(--wf-s-4);
  display: flex; justify-content: space-between; align-items: center;
  gap: var(--wf-s-4);
  font-size: var(--wf-fs-small);
  color: var(--wf-text-faint);
  flex-wrap: wrap;
}
.g-hint { display: flex; align-items: center; gap: var(--wf-s-2); }
.g-hint--right { margin-left: auto; }
kbd {
  background: var(--wf-surface-2); border: 1px solid var(--wf-line);
  border-radius: var(--wf-r-sm); padding: 1px 6px; font-size: 10px;
  font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
  color: var(--wf-text-muted); line-height: 14px;
}

/* Responsive shrink */
@media (max-width: 900px) {
  .g-brand-text { display: none; }
  .g-version { display: none; }
  .g-select { max-width: 180px; }
}
@media (max-width: 640px) {
  .g-bar { gap: var(--wf-s-2); padding: var(--wf-s-2); }
  .g-footer { padding: var(--wf-s-2); font-size: 10px; }
  .g-hint kbd { display: none; }
}