/* Shared modal frame: fixed chrome, a single scroller and consistent rhythm. */
:root { --modal-padding: 24px; --modal-gap: 16px; --modal-max-height: min(88dvh, 820px); }
html:has(dialog[open]) { overflow: hidden; }
dialog.modal-layout { overflow: hidden; padding: 0; max-height: var(--modal-max-height); border: 1px solid var(--border); }
dialog.modal-layout > .modal-shell { display: flex; flex-direction: column; width: 100%; min-height: 0; max-height: calc(var(--modal-max-height) - 2px); overflow: hidden; padding: 0; margin: 0; gap: 0; }
.modal-shell > .modal-header { flex: none; display: flex; align-items: center; justify-content: space-between; gap: 16px; margin: 0; padding: 16px var(--modal-padding); background: var(--surface); border-bottom: 1px solid var(--border); }
.modal-header > h3, .modal-heading-group > h3 { min-width: 0; margin: 0; font-size: var(--font-size-section); line-height: 1.45; font-weight: 600; overflow-wrap: anywhere; }
.modal-heading-group { min-width: 0; display: flex; flex-direction: column; gap: 4px; }
.modal-heading-group .event-detail-kicker { font-size: var(--font-size-caption); }
.modal-header .modal-close { flex: none; display: grid; place-items: center; width: 36px; height: 36px; min-height: 36px; padding: 0; margin: 0; border-radius: 8px; color: var(--muted); }
.modal-shell > .modal-body { flex: 1 1 auto; min-height: 0; display: flex; flex-direction: column; align-items: stretch; gap: var(--modal-gap); padding: 20px var(--modal-padding); overflow: auto; overscroll-behavior: contain; scroll-padding-block: 16px; scrollbar-width: thin; scrollbar-color: var(--border-strong) transparent; }
.modal-body :is(input, textarea, button, summary) { scroll-margin-block: 12px; }
.modal-body > :is(p, .bar), .modal-body .event-detail-fields { margin-block: 0; }
/* These resets replace legacy inline margins with spacing owned by containers. */
.modal-body :is(.field, .picker-field, .field-row, .seg, .when-card, .task-slot-heading, .task-inherit-field) { margin-block: 0 !important; }
.modal-body .field > span:not(.input-with-btn), .modal-body .picker-label { margin-bottom: 6px; }
.modal-body .field > .input-with-btn { margin: 0; }
.modal-body .field-row { gap: 12px; align-items: flex-start; }
.modal-body :is(#whenBody, .when-card, .form-section-body, #authFields, #settingsBody) { display: flex; flex-direction: column; gap: var(--modal-gap); }
.modal-body .when-card { padding: 0; border: 0; border-radius: 0; background: transparent; }
.modal-body .when-time-row { gap: 12px; }
.modal-body .task-slot { display: flex; flex-direction: column; gap: 8px; }
.modal-body .task-slot-heading:not(:has(button)) { display: none; }
.modal-body .task-slot-buttons { gap: 8px; }
.modal-body .duration-row { margin: 0; padding-top: 0; gap: 8px; }
.modal-body .task-inherit-note { margin: 0; }
.modal-body .form-section { margin: 0; }
.modal-body .form-section > summary { min-height: 36px; padding-block: 6px; }
.modal-body .form-section-body { padding: 0 0 8px; gap: 12px; }
.modal-body > .form-section + .form-section { margin-top: calc(-1 * var(--modal-gap)); }
.modal-body #settingsBody > .card { display: flex; flex-direction: column; gap: var(--modal-gap); margin: 0; padding: 0 0 20px; background: transparent; border: 0; border-bottom: 1px solid var(--border); border-radius: 0; box-shadow: none; }
.modal-body #settingsBody > .card:last-child { padding-bottom: 0; border-bottom: 0; }
.modal-body #settingsBody > .card > :is(h3, p), .modal-body #settingsBody .seg { margin: 0 !important; }
.modal-body > .event-detail-status { align-self: flex-start; }
.modal-body .event-detail-field { padding-block: 12px; }
.modal-body .event-detail-note { margin: 0; padding: 12px; }
.modal-body .event-detail-note h4 { margin: 0 0 6px; }
.modal-body .event-detail-note p { margin: 0; }
.modal-shell > .modal-footer { position: static; flex: none; display: flex; align-items: center; flex-wrap: wrap; gap: 8px; margin: 0; padding: 16px var(--modal-padding); background: var(--surface); border-top: 1px solid var(--border); z-index: auto; }
.modal-footer > .btn { min-height: 40px; }
/* The document reader already has separate chrome and a scrolling body. */
dialog.doc-dialog { max-height: var(--modal-max-height); }
.doc-dialog-bar { padding: 16px var(--modal-padding); gap: 8px; }
.doc-dialog-body { padding: 20px var(--modal-padding); overscroll-behavior: contain; }
@media (max-width: 600px) {
  :root { --modal-padding: 20px; --modal-max-height: calc(100dvh - 24px); }
  .modal-shell > .modal-header { padding-block: 12px; gap: 12px; }
  .modal-header .modal-close { width: 44px; height: 44px; min-height: 44px; }
  .modal-shell > .modal-body { padding-block: 16px; }
  .modal-shell > .modal-footer { padding-top: 12px; padding-bottom: max(12px, env(safe-area-inset-bottom)); }
  .modal-footer > .btn { min-height: 44px; }
  .doc-dialog-bar { padding-block: 12px; }
  .doc-dialog-body { padding-block: 16px; }
}
/* Layout display rules must respect the application's conditional fields. */
.modal-body [hidden], .modal-header [hidden], .modal-footer [hidden] { display: none !important; }
.modal-body .seg-btn { min-width: 0; }
.modal-body .ai-key-box { margin: 0; }
.modal-body .ai-key-box p { overflow-wrap: anywhere; }
.modal-body .ai-results { max-height: none; overflow: visible; padding-right: 0; }
@media (max-width: 600px) {
  .modal-body .seg:has([data-field="type"]) { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .modal-body .seg-btn { min-height: 44px; }
}

.modal-secondary-actions { display: flex; flex-wrap: wrap; align-items: center; gap: 8px; }
.modal-secondary-actions:not(:has(> button:not([hidden]))) { display: none; }
.modal-secondary-actions #authSwitch { border-color: transparent; background: transparent; padding-inline: 0; color: var(--accent-text); }

.modal-body .task-slot .duration-row { border: 0; padding: 0; }
.modal-body .task-slot .duration-hint:empty { display: none; }
.modal-body .task-slot-buttons { margin: 0; }

@media (max-width: 600px) { .modal-body .form-section > summary { min-height: 44px; } }