:root { --sidebar-w: 240px; }
body { background: var(--bs-tertiary-bg); }
.app-topbar { background: var(--bs-body-bg); }
.app-shell { display: flex; min-height: calc(100vh - 57px); }
.app-sidebar { background: var(--bs-body-bg); }
@media (min-width: 992px) {
  .app-sidebar { width: var(--sidebar-w); flex: 0 0 var(--sidebar-w); position: sticky; top: 57px; height: calc(100vh - 57px); overflow-y: auto; }
}
.app-main { flex: 1 1 auto; min-width: 0; }
.app-sidebar .nav-link { color: var(--bs-body-color); border-radius: .4rem; padding: .45rem .75rem; display: flex; gap: .6rem; align-items: center; }
.app-sidebar .nav-link:hover { background: var(--bs-secondary-bg); }
.app-sidebar .nav-link.active { background: var(--bs-primary-bg-subtle); color: var(--bs-primary-text-emphasis); font-weight: 600; }
.nav-section { font-size: .7rem; text-transform: uppercase; letter-spacing: .06em; color: var(--bs-secondary-color); padding: .9rem .75rem .25rem; }
.card { border-color: var(--bs-border-color-translucent); }
.row-link { cursor: pointer; }
.checkbox-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(150px, 1fr)); gap: .15rem .75rem; max-height: 220px; overflow-y: auto; }
.sticky-actions { position: sticky; bottom: 0; background: var(--bs-body-bg); padding: .75rem 0 .25rem; }
.stat { font-size: 1.35rem; font-weight: 600; }
.stat-label { font-size: .78rem; color: var(--bs-secondary-color); }

/* Stacked tables on small screens */
@media (max-width: 767.98px) {
  .responsive-table thead { display: none; }
  .responsive-table tr { display: block; border-bottom: 1px solid var(--bs-border-color); padding: .5rem .25rem; }
  .responsive-table td { display: flex; justify-content: space-between; gap: 1rem; border: 0; padding: .2rem .5rem; text-align: right; }
  .responsive-table td::before { content: attr(data-label); color: var(--bs-secondary-color); text-align: left; font-size: .85rem; }
  .responsive-table td:first-child { font-size: 1.05rem; text-align: left; }
  .responsive-table td:first-child::before { content: none; }
}

/* Kanban */
.kanban { display: flex; gap: .75rem; overflow-x: auto; padding-bottom: .75rem; scroll-snap-type: x proximity; }
.kanban-col { flex: 0 0 280px; background: var(--bs-body-bg); border: 1px solid var(--bs-border-color-translucent); border-radius: .5rem; display: flex; flex-direction: column; max-height: calc(100vh - 230px); scroll-snap-align: start; }
@media (max-width: 575.98px) { .kanban-col { flex-basis: 85vw; } }
.kanban-col header { padding: .6rem .75rem; border-bottom: 3px solid var(--col-color, #999); }
.kanban-items { padding: .5rem; overflow-y: auto; flex: 1; min-height: 80px; }
.kanban-items.drag-over { background: var(--bs-primary-bg-subtle); }
.kanban-card { background: var(--bs-tertiary-bg); border: 1px solid var(--bs-border-color-translucent); border-radius: .4rem; padding: .55rem .65rem; margin-bottom: .5rem; cursor: grab; }
.kanban-card:active { cursor: grabbing; }
.kanban-card a { color: inherit; text-decoration: none; }

/* Budget bar */
.budget-bar { height: 14px; border-radius: 7px; background: var(--bs-secondary-bg); overflow: hidden; display: flex; }
.budget-bar .committed { background: var(--bs-success); }
.budget-bar .forecast { background: repeating-linear-gradient(45deg, var(--bs-warning), var(--bs-warning) 6px, rgba(255,193,7,.6) 6px, rgba(255,193,7,.6) 12px); }

/* Timetable */
.timetable-wrap { overflow-x: auto; }
.timetable { display: grid; grid-template-columns: 56px repeat(var(--stages), minmax(170px, 1fr)); min-width: calc(56px + var(--stages) * 170px); }
.tt-head { position: sticky; top: 0; z-index: 3; background: var(--bs-body-bg); padding: .5rem; font-weight: 600; border-bottom: 1px solid var(--bs-border-color); text-align: center; }
.tt-col, .tt-hours { position: relative; border-left: 1px solid var(--bs-border-color-translucent); margin: .75rem 0; }
.tt-hours .tt-hour { position: absolute; right: 6px; font-size: .72rem; color: var(--bs-secondary-color); transform: translateY(-50%); }
.tt-gridline { position: absolute; left: 0; right: 0; border-top: 1px dashed var(--bs-border-color-translucent); }
.tt-block { position: absolute; left: 4px; right: 4px; border-radius: .35rem; padding: 2px 6px; font-size: .78rem; overflow: hidden; line-height: 1.2; }
.tt-slot { color: #fff; box-shadow: 0 1px 2px rgba(0,0,0,.25); z-index: 2; }
.tt-slot a { color: #fff; text-decoration: none; }
.tt-slot.conflict { outline: 3px solid var(--bs-danger); }
.tt-slot.draft { opacity: .65; border: 2px dashed #fff; }
.tt-changeover { background: repeating-linear-gradient(135deg, var(--bs-secondary-bg), var(--bs-secondary-bg) 5px, var(--bs-tertiary-bg) 5px, var(--bs-tertiary-bg) 10px); color: var(--bs-secondary-color); font-size: .68rem; z-index: 1; }
.tt-break { background: var(--bs-warning-bg-subtle); border: 1px solid var(--bs-warning-border-subtle); color: var(--bs-warning-text-emphasis); z-index: 1; }
.mail-body { white-space: pre-wrap; word-break: break-word; }
.mail-html { overflow-x: auto; }
@media print {
  .app-sidebar, .app-topbar, .btn, form, .nav-pills, .alert { display: none !important; }
  .tab-pane { display: block !important; opacity: 1 !important; }
  body { background: #fff; }
}