/* I-Share — app-level layout & components */

.app-shell {
  max-width: 640px;
  margin: 0 auto;
  padding: 0 16px 96px;
}

.topbar {
  position: sticky;
  top: 0;
  z-index: 20;
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 14px 16px;
  background: color-mix(in srgb, var(--bg) 88%, transparent);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--border);
}

.topbar .brand {
  font-family: var(--font-display);
  font-size: 1.3rem;
  font-weight: 700;
  flex: 1;
}

.avatar {
  width: 34px;
  height: 34px;
  border-radius: 50%;
  object-fit: cover;
  border: 1px solid var(--border);
  background: var(--bg-inset);
}

.icon-btn {
  width: 38px;
  height: 38px;
  border-radius: 50%;
  border: 1px solid var(--border);
  background: var(--bg-elevated);
  display: grid;
  place-items: center;
  cursor: pointer;
  font-size: 1.1rem;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 20px;
  border-radius: var(--radius-m);
  border: none;
  background: var(--brand);
  color: #fff;
  font-weight: 600;
  font-size: 0.95rem;
  cursor: pointer;
  transition: transform 0.15s ease, box-shadow 0.15s ease, opacity 0.15s ease;
}
.btn:hover { box-shadow: var(--shadow); }
.btn:active { transform: scale(0.97); }
.btn:disabled { opacity: 0.5; cursor: not-allowed; }

.btn.secondary {
  background: var(--bg-inset);
  color: var(--text);
}
.btn.ghost {
  background: transparent;
  color: var(--brand);
  border: 1px solid var(--border);
}
.btn.danger { background: var(--danger); }
.btn.block { width: 100%; }
.btn.sm { padding: 8px 14px; font-size: 0.85rem; }

.card {
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: var(--radius-l);
  padding: 18px;
  box-shadow: var(--shadow);
  margin-bottom: 16px;
}

.section-title {
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--text-muted);
  margin: 24px 0 10px;
}

.event-card {
  display: flex;
  align-items: center;
  gap: 14px;
  cursor: pointer;
}
.event-card .thumb {
  width: 56px;
  height: 56px;
  border-radius: var(--radius-m);
  background: var(--bg-inset);
  object-fit: cover;
  flex-shrink: 0;
}
.event-card .meta { flex: 1; min-width: 0; }
.event-card .meta .name {
  font-weight: 600;
  font-size: 1.02rem;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.event-card .meta .sub {
  color: var(--text-muted);
  font-size: 0.85rem;
}

.badge {
  display: inline-block;
  padding: 2px 9px;
  border-radius: 999px;
  font-size: 0.72rem;
  font-weight: 600;
  background: var(--brand-soft);
  color: var(--brand-strong);
}
.badge.pending { background: var(--danger-soft); color: var(--danger); }

.empty-state {
  text-align: center;
  padding: 48px 16px;
  color: var(--text-muted);
}
.empty-state .big-emoji { font-size: 2.6rem; margin-bottom: 12px; }

.field { margin-bottom: 16px; }
.field label {
  display: block;
  font-size: 0.85rem;
  font-weight: 600;
  margin-bottom: 6px;
}
.field input[type="text"],
.field input[type="number"],
.field textarea,
.field select {
  width: 100%;
  padding: 11px 14px;
  border-radius: var(--radius-s);
  border: 1px solid var(--border);
  background: var(--bg-inset);
  color: var(--text);
}
.field input:focus, .field textarea:focus, .field select:focus {
  outline: 2px solid var(--brand);
  outline-offset: 1px;
}
.field .hint { font-size: 0.78rem; color: var(--text-muted); margin-top: 4px; }

.toggle-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 10px 0;
}
.switch {
  position: relative;
  width: 46px;
  height: 26px;
  flex-shrink: 0;
}
.switch input { opacity: 0; width: 0; height: 0; }
.switch .track {
  position: absolute; inset: 0;
  background: var(--bg-inset);
  border: 1px solid var(--border);
  border-radius: 999px;
  transition: background 0.2s;
}
.switch .track::before {
  content: "";
  position: absolute;
  width: 20px; height: 20px;
  left: 3px; top: 2px;
  background: #fff;
  border-radius: 50%;
  transition: transform 0.2s;
  box-shadow: 0 1px 4px rgba(0,0,0,0.3);
}
.switch input:checked + .track { background: var(--brand); }
.switch input:checked + .track::before { transform: translateX(-20px); }

.type-toggle {
  display: flex;
  background: var(--bg-inset);
  border-radius: var(--radius-m);
  padding: 4px;
  gap: 4px;
}
.type-toggle button {
  flex: 1;
  padding: 10px;
  border: none;
  background: transparent;
  border-radius: var(--radius-s);
  cursor: pointer;
  font-weight: 600;
  color: var(--text-muted);
}
.type-toggle button.active {
  background: var(--bg-elevated);
  color: var(--brand);
  box-shadow: var(--shadow);
}

.modal-overlay {
  position: fixed; inset: 0;
  background: rgba(10, 8, 20, 0.5);
  display: flex;
  align-items: flex-end;
  justify-content: center;
  z-index: 100;
}
.modal-sheet {
  width: 100%;
  max-width: 560px;
  max-height: 90vh;
  overflow-y: auto;
  background: var(--bg-elevated);
  border-radius: var(--radius-l) var(--radius-l) 0 0;
  padding: 22px 20px 32px;
  box-shadow: var(--shadow-lift);
}
@media (min-width: 640px) {
  .modal-overlay { align-items: center; }
  .modal-sheet { border-radius: var(--radius-l); }
}
.modal-sheet .modal-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 16px;
}

.fab {
  position: fixed;
  bottom: 24px;
  left: 50%;
  transform: translateX(-50%);
  z-index: 30;
  display: flex;
  gap: 10px;
}

.tabs {
  display: flex;
  border-bottom: 1px solid var(--border);
  margin-bottom: 16px;
  gap: 4px;
}
.tabs button {
  padding: 10px 4px;
  margin-left: 18px;
  background: none;
  border: none;
  border-bottom: 2px solid transparent;
  color: var(--text-muted);
  font-weight: 600;
  cursor: pointer;
}
.tabs button.active {
  color: var(--brand);
  border-color: var(--brand);
}

/* Photo grid / gallery */
.photo-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 4px;
}
.photo-grid .photo-tile {
  position: relative;
  aspect-ratio: 1;
  overflow: hidden;
  border-radius: 4px;
  background: var(--bg-inset);
  cursor: pointer;
}
.photo-grid .photo-tile.not-selectable { cursor: default; opacity: 0.45; }
.photo-grid .photo-tile.selected img { outline: 3px solid var(--brand); outline-offset: -3px; }
.photo-grid .photo-tile .select-check {
  position: absolute; top: 6px; left: 6px;
  width: 22px; height: 22px;
  border-radius: 50%;
  background: rgba(0,0,0,0.45);
  border: 2px solid #fff;
  color: #fff;
  font-size: 0.8rem;
  display: flex; align-items: center; justify-content: center;
}
.photo-grid .photo-tile.selected .select-check {
  background: var(--brand);
  border-color: var(--brand);
}
.photo-grid .heart-badge {
  position: absolute; top: 4px; right: 4px;
  display: flex; align-items: center; gap: 2px;
  padding: 2px 6px;
  border-radius: 999px;
  background: rgba(0,0,0,0.4);
  border: none;
  color: #fff;
  font-size: 0.75rem;
  cursor: pointer;
  line-height: 1.4;
}
.photo-grid .heart-icon { font-size: 0.9rem; }
.photo-grid .photo-tile img {
  width: 100%; height: 100%;
  object-fit: cover;
  display: block;
}

.upload-review-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 8px;
  margin: 16px 0;
}
.upload-review-grid .item {
  position: relative;
  aspect-ratio: 1;
  border-radius: var(--radius-s);
  overflow: hidden;
}
.upload-review-grid .item img { width: 100%; height: 100%; object-fit: cover; }
.upload-review-grid .item .remove {
  position: absolute; top: 4px; left: 4px;
  width: 24px; height: 24px;
  border-radius: 50%;
  background: rgba(0,0,0,0.55);
  color: #fff;
  border: none;
  cursor: pointer;
  display: grid; place-items: center;
}
.upload-review-grid .item .progress {
  position: absolute; bottom: 0; right: 0; left: 0;
  height: 4px;
  background: rgba(255,255,255,0.3);
}
.upload-review-grid .item .progress > div {
  height: 100%;
  background: var(--brand);
  transition: width 0.2s;
}

.viewer-overlay {
  position: fixed; inset: 0;
  background: #000;
  z-index: 200;
  display: flex;
  flex-direction: column;
}
.viewer-overlay .viewer-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 16px;
  color: #fff;
}
.viewer-overlay .viewer-body {
  position: relative;
  flex: 1;
  display: grid;
  place-items: center;
  overflow: hidden;
}
.viewer-overlay img {
  max-width: 100%;
  max-height: 100%;
  object-fit: contain;
  cursor: zoom-in;
}
.viewer-overlay .viewer-nav {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  z-index: 5;
  font-size: 1.4rem;
  background: rgba(0,0,0,0.35);
  border-color: rgba(255,255,255,0.2);
  color: #fff;
}
/* prev is on the right (RTL "start"), next on the left ("end") — matches the
   ArrowRight=prev / ArrowLeft=next and swipe-right=prev / swipe-left=next mapping. */
.viewer-overlay .viewer-nav-prev { right: 10px; }
.viewer-overlay .viewer-nav-next { left: 10px; }
.viewer-overlay .viewer-actions {
  display: flex;
  gap: 18px;
  padding: 10px 16px 20px;
  justify-content: center;
}
.viewer-overlay .icon-btn {
  background: rgba(255,255,255,0.12);
  border-color: rgba(255,255,255,0.2);
  color: #fff;
}
.viewer-overlay .action-btn {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 5px;
  background: none;
  border: none;
  color: #fff;
  cursor: pointer;
  padding: 0;
}
.viewer-overlay .action-btn .label {
  font-size: 0.7rem;
  color: rgba(255,255,255,0.85);
  white-space: nowrap;
}

.participant-row, .user-row, .event-row {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 10px 0;
  border-bottom: 1px solid var(--border);
}
.participant-row:last-child, .user-row:last-child, .event-row:last-child { border-bottom: none; }
.participant-row .name, .user-row .name { font-weight: 600; }
.participant-row .role { color: var(--text-muted); font-size: 0.82rem; }
.participant-row .actions, .user-row .actions { margin-right: auto; display: flex; gap: 6px; }

.invite-box {
  text-align: center;
  padding: 8px 0;
}
.invite-box .code {
  font-family: var(--font-mono);
  font-size: 1.6rem;
  letter-spacing: 0.12em;
  font-weight: 700;
  margin: 10px 0;
}
.invite-box svg { width: 180px; height: 180px; margin: 0 auto; }

.toast {
  position: fixed;
  bottom: 90px;
  left: 50%;
  transform: translateX(-50%);
  background: var(--text);
  color: var(--bg);
  padding: 10px 18px;
  border-radius: 999px;
  font-size: 0.85rem;
  z-index: 300;
  box-shadow: var(--shadow-lift);
}

.progress-line {
  height: 4px;
  border-radius: 2px;
  background: var(--bg-inset);
  overflow: hidden;
}
.progress-line > div { height: 100%; background: var(--brand); }

.center-screen {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 20px;
  padding: 24px;
  text-align: center;
}