.app-shell {
  width: 100%;
  max-width: 100vw;
  min-height: 100vh;
  padding-bottom: 3.75rem;
  overflow-x: hidden;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  grid-template-rows: auto 1fr;
  background:
    radial-gradient(circle at 92% 12%, rgb(180 190 254 / 7%), transparent 25rem),
    var(--crust);
}

.skip-link { position: fixed; z-index: 20; top: .75rem; left: .75rem; padding: .65rem .85rem; color: var(--crust); background: var(--lavender); border-radius: .45rem; font-weight: 700; text-decoration: none; transform: translateY(-200%); }
.skip-link:focus { transform: translateY(0); }

.app-header {
  min-width: 0;
  position: sticky;
  top: 0;
  z-index: 10;
  min-height: 4.5rem;
  padding: .75rem var(--shell-gutter);
  display: flex;
  align-items: center;
  gap: clamp(1.5rem, 4vw, 5rem);
  background: rgb(17 17 27 / 92%);
  border-bottom: 1px solid rgb(69 71 90 / 55%);
  backdrop-filter: blur(16px);
}

.brand { display: flex; align-items: center; gap: .7rem; color: var(--text); text-decoration: none; font-size: 1.02rem; font-weight: 850; letter-spacing: .15em; text-shadow: 0 0 1.4rem rgb(180 190 254 / 24%); }
.brand-mark { width: 2.1rem; height: 2.1rem; display: grid; place-items: center; color: var(--crust); background: var(--lavender); border: 1px solid rgb(255 255 255 / 28%); border-radius: .58rem; box-shadow: 0 0 .9rem rgb(180 190 254 / 18%); font: 750 var(--font-size-xs) var(--font-mono); letter-spacing: -.04em; }
.main-nav { min-width: 0; display: flex; align-items: center; gap: .25rem; overflow-x: auto; scrollbar-width: none; }
.main-nav::-webkit-scrollbar { display: none; }
.nav-link { position: relative; padding: .7rem .85rem; color: var(--subtext-0); text-decoration: none; font-size: .91rem; font-weight: 570; white-space: nowrap; transition: color 140ms ease, background 140ms ease; border-radius: .55rem; }
.nav-link:hover { color: var(--text); background: rgb(49 50 68 / 48%); }
.nav-link.is-active { color: var(--lavender); }
.nav-link.is-active::after { content: ""; position: absolute; left: .85rem; right: .85rem; bottom: .22rem; height: 2px; background: var(--lavender); border-radius: 2px; }
.sync-control { margin-left: auto; display: flex; align-items: center; gap: .6rem; position: relative; }
.sync-control button { border: 1px solid var(--lavender); border-radius: .55rem; padding: .55rem .8rem; background: transparent; color: var(--text); cursor: pointer; }
.sync-control button:focus-visible { outline: 3px solid var(--lavender); outline-offset: 2px; }
.sync-control button:disabled { cursor: not-allowed; opacity: .55; }
.sync-details { max-width: 28rem; color: var(--subtext-0); }
.sync-details summary { cursor: pointer; }
.sync-details[open] { position: absolute; z-index: 20; right: 0; top: 2.8rem; min-width: 20rem; padding: .8rem; border: 1px solid var(--surface-2); border-radius: .7rem; background: var(--base); box-shadow: 0 .5rem 2rem #0008; }
.sync-details h2 { font-size: 1rem; }
.sync-details ul { padding-left: 1.2rem; }
.display-preferences { position: relative; margin-left: auto; }
.preferences-trigger { min-height: 2.5rem; padding: .55rem .75rem; color: var(--subtext-0); background: transparent; border: 1px solid var(--surface-2); border-radius: .55rem; cursor: pointer; white-space: nowrap; }
.preferences-trigger:focus-visible { outline: 3px solid var(--lavender); outline-offset: 2px; }
.preferences-dialog { position: absolute; z-index: 30; top: 3rem; right: 0; width: min(24rem, calc(100vw - 2rem)); padding: 1rem; color: var(--text); background: var(--base); border: 1px solid var(--surface-2); border-radius: .75rem; box-shadow: 0 .75rem 2.5rem #0009; }
.preferences-heading { display: flex; align-items: start; justify-content: space-between; gap: 1rem; }
.preferences-heading h2 { margin-bottom: .75rem; font-size: 1rem; }
.preferences-dialog fieldset { display: grid; gap: .65rem; border: 0; padding: 0; }
.preferences-dialog legend { margin-bottom: .55rem; color: var(--subtext-0); font-size: var(--font-size-sm); }
.preferences-dialog label { display: flex; align-items: center; gap: .55rem; }
.preference-example { margin: .85rem 0 0; color: var(--overlay-1); font-size: var(--font-size-xs); }

.app-main { width: 100%; min-width: 0; padding: clamp(2.25rem, 5vw, 5rem) var(--shell-gutter) clamp(3rem, 7vw, 7rem); }
.page { width: min(100%, 92rem); min-width: 0; margin: 0 auto; }
.page-heading { margin-bottom: clamp(2rem, 4vw, 3.5rem); display: flex; justify-content: space-between; align-items: end; gap: 2rem; }
.eyebrow { margin: 0 0 .5rem; color: var(--lavender); font: 700 var(--font-size-xs)/1.25 var(--font-mono); letter-spacing: .12em; text-transform: uppercase; }
h1, h2, p { margin-top: 0; }
h1 { margin-bottom: 0; font-size: var(--font-size-display); line-height: .96; letter-spacing: -.055em; font-weight: 720; }
h2 { color: var(--text); font-size: var(--font-size-lg); line-height: 1.25; letter-spacing: -.015em; font-weight: 680; }
.page-intro { max-width: 34rem; margin-bottom: .15rem; color: var(--subtext-0); font-size: clamp(.95rem, 1.4vw, 1.08rem); line-height: 1.65; }
.sr-only { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0, 0, 0, 0); white-space: nowrap; border: 0; }

.sessions-toolbar { margin-bottom: 1.25rem; display: flex; align-items: center; justify-content: space-between; gap: 1rem; flex-wrap: wrap; }
.detail-actions, .confirmation-actions { display: flex; flex-wrap: wrap; justify-content: flex-end; gap: .65rem; }
.session-tabs { display: flex; gap: .4rem; padding: .3rem; border: 1px solid var(--surface-1); border-radius: .75rem; background: var(--mantle); }
.session-tabs button, .quiet-action, .primary-action, .editor-actions button { min-height: 2.6rem; padding: .6rem .9rem; border: 1px solid transparent; border-radius: .55rem; color: var(--text); background: transparent; cursor: pointer; }
.session-tabs button[aria-selected="true"] { color: var(--crust); background: var(--lavender); font-weight: 700; }
.primary-action, .editor-actions .primary-action { color: var(--crust); background: var(--lavender); font-weight: 700; }
.danger-action { min-height: 2.6rem; padding: .6rem .9rem; color: var(--red); background: transparent; border: 1px solid var(--red); border-radius: .55rem; cursor: pointer; font-weight: 700; }
.danger-action:hover { color: var(--crust); background: var(--red); }
.danger-action:disabled { cursor: not-allowed; opacity: .55; }
.quiet-action { border-color: var(--surface-2); }
.session-search { display: grid; gap: .45rem; max-width: 34rem; margin-bottom: 1.5rem; color: var(--subtext-0); font-size: var(--font-size-sm); }
.session-filters { display: flex; flex-wrap: wrap; gap: .8rem; margin: -.35rem 0 1.25rem; }
.session-filters label { display: grid; min-width: 10rem; gap: .35rem; color: var(--subtext-0); font-size: var(--font-size-xs); }
.session-filters select, .session-filters input { min-height: 2.5rem; padding: .55rem .7rem; color: var(--text); background: var(--mantle); border: 1px solid var(--surface-2); border-radius: .5rem; }
.sort-indicator { width: max-content; margin: -.5rem 0 1rem; padding: .35rem .55rem; color: var(--lavender); background: rgb(180 190 254 / 8%); border-radius: .4rem; font: 650 var(--font-size-xs) var(--font-mono); }
.session-search input, .form-grid input, .form-grid select, .form-grid textarea, .catalog-picker input, .occurrence-fields input, .occurrence-fields select { width: 100%; min-height: 2.7rem; padding: .65rem .75rem; border: 1px solid var(--surface-2); border-radius: .5rem; color: var(--text); background: var(--base); font-size: var(--font-size-md); }
.session-list { display: grid; gap: .6rem; }
.session-row {
  align-items: stretch;
  background: var(--mantle);
  border: 1px solid var(--surface-1);
  border-radius: .75rem;
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto 3rem;
  overflow: hidden;
  width: 100%;
}
.session-row:hover { border-color: var(--lavender); }
.session-row-main {
  align-items: center;
  background: transparent;
  border: 0;
  color: var(--text);
  cursor: pointer;
  display: grid;
  gap: 1rem;
  grid-template-columns: minmax(12rem, 2fr) repeat(3, minmax(7rem, 1fr));
  padding: 1rem 1.1rem;
  text-align: left;
  width: 100%;
}
.session-row-main:hover { background: var(--base); }
.session-row span:first-child { display: grid; gap: .2rem; }
.session-row small { color: var(--lavender); font: 700 var(--font-size-xs) var(--font-mono); text-transform: uppercase; }
.sessions-editor, .session-detail { padding: clamp(1rem, 3vw, 2.25rem); border: 1px solid var(--surface-1); border-radius: var(--radius); background: var(--mantle); }
.form-grid { display: grid; grid-template-columns: 2fr 1fr 1fr; gap: 1rem; }
.form-grid label, .catalog-picker label, .occurrence-fields label { display: grid; gap: .4rem; color: var(--subtext-0); font-size: var(--font-size-sm); }
.wide-field { grid-column: 1 / -1; }
.form-grid textarea { min-height: 7rem; resize: vertical; }
.catalog-picker { margin: 1.5rem 0; }
.catalog-results { margin-top: .6rem; display: flex; gap: .45rem; flex-wrap: wrap; }
.catalog-results button, .occurrence-actions button { padding: .45rem .65rem; border: 1px solid var(--surface-2); border-radius: .45rem; color: var(--text); background: var(--base); cursor: pointer; }
.occurrence-editor-list, .detail-occurrences { padding: 0; display: grid; gap: .75rem; list-style: none; }
.occurrence-editor-list > li, .detail-occurrences > li { padding: 1rem; border: 1px solid var(--surface-1); border-radius: .7rem; background: var(--base); }
.occurrence-heading { display: flex; align-items: center; gap: .65rem; }
.drag-handle { color: var(--overlay-1); }
.occurrence-actions { margin-left: auto; display: flex; gap: .35rem; }
.occurrence-fields { margin-top: 1rem; display: grid; grid-template-columns: repeat(5, minmax(7rem, 1fr)); gap: .75rem; }
.editor-actions { margin-top: 1.5rem; display: flex; justify-content: flex-end; gap: .75rem; }
.editor-actions button { border-color: var(--surface-2); }
.editor-actions button:disabled { cursor: not-allowed; opacity: .55; }
.empty-inline, .error-panel, .form-error { padding: 1rem; border-radius: .65rem; background: var(--base); color: var(--subtext-0); }
.error-panel, .form-error { border: 1px solid var(--red); color: var(--red); }
.success-panel { padding: 1rem; border: 1px solid var(--green); border-radius: .65rem; color: var(--green); background: rgb(166 227 161 / 7%); }
.delete-confirmation { margin-bottom: 1rem; padding: 1rem; border: 1px solid var(--red); border-radius: .75rem; background: var(--base); }
.delete-confirmation h3 { margin-top: 0; }
.delete-confirmation p { color: var(--subtext-0); line-height: 1.55; }
.delete-dialog-backdrop {
  align-items: center;
  background: rgb(17 17 27 / 78%);
  display: flex;
  inset: 0;
  justify-content: center;
  padding: 1rem;
  position: fixed;
  z-index: 30;
}
.delete-dialog-backdrop .delete-confirmation {
  margin: 0;
  max-height: calc(100vh - 2rem);
  max-width: 34rem;
  overflow-y: auto;
  width: 100%;
}
.trash-action {
  align-items: center;
  align-self: stretch;
  background: transparent;
  border: 0;
  color: var(--red);
  display: inline-flex;
  font-size: 1.1rem;
  justify-content: center;
  min-height: 44px;
  min-width: 44px;
}
.trash-action:hover,
.trash-action:focus-visible { background: rgb(243 139 168 / 12%); }
.android-send-action {
  align-items: center;
  align-self: stretch;
  background: transparent;
  border: 0;
  border-left: 1px solid var(--surface-1);
  color: var(--blue);
  cursor: pointer;
  display: inline-flex;
  font-size: 1.25rem;
  justify-content: center;
  min-height: 44px;
  min-width: 44px;
}
.android-send-action:hover, .android-send-action:focus-visible { background: rgb(137 180 250 / 12%); }
.android-send-action:disabled { cursor: wait; opacity: .55; }
.android-delivery-state {
  align-items: center;
  border-left: 1px solid var(--surface-1);
  color: var(--subtext-0);
  display: inline-flex;
  font-size: var(--font-size-xs);
  font-weight: 700;
  max-width: 9rem;
  padding: .55rem .75rem;
  text-align: center;
}
.android-delivery-state.state-remote_unknown { color: var(--yellow); }
.android-delivery-state.state-acknowledged { color: var(--green); }
.program-list, .program-session-list { display: grid; gap: .75rem; }
.program-row { box-shadow: 0 .45rem 1.4rem rgb(0 0 0 / 10%); }
.program-row .session-row-main { grid-template-columns: minmax(13rem, 2fr) repeat(3, minmax(8rem, 1fr)); }
.program-session-list { padding: 0; list-style: none; }
.program-session-list li { display: flex; align-items: center; justify-content: space-between; gap: 1rem; padding: 1rem; border: 1px solid var(--surface-1); border-radius: .7rem; }
.program-session-list p { margin: .35rem 0 0; color: var(--subtext-0); }
.program-execution-state { display: inline-flex; margin-left: .65rem; padding: .2rem .55rem; border-radius: 999px; font-size: .82rem; font-weight: 700; }
.program-execution-state.state-todo { background: var(--surface-1); color: var(--subtext-1); }
.program-execution-state.state-prepared, .program-execution-state.state-in_progress { background: color-mix(in srgb, var(--yellow) 18%, transparent); color: var(--yellow); }
.program-execution-state.state-completed { background: color-mix(in srgb, var(--green) 18%, transparent); color: var(--green); }
.program-execution-state.state-deleted { background: color-mix(in srgb, var(--red) 14%, transparent); color: var(--red); }
.programs-calendar-page { max-width: 100%; }
.program-calendar-loading { min-height: 12rem; display: grid; place-items: center; color: var(--subtext-0); }
.program-calendar-empty { max-width: 40rem; padding: clamp(1.25rem, 4vw, 2.5rem); border: 1px solid var(--surface-1); border-radius: var(--radius); background: var(--mantle); }
.program-calendar-empty > p:not(.eyebrow) { color: var(--subtext-0); line-height: 1.6; }
.program-calendar-empty .primary-action { display: inline-flex; align-items: center; text-decoration: none; }
.program-calendar-selector { width: min(100%, 28rem); margin: 0 0 1.5rem auto; display: grid; gap: .4rem; color: var(--subtext-0); font-size: var(--font-size-sm); }
.program-calendar-selector select { min-height: 2.7rem; padding: .6rem .75rem; color: var(--text); background: var(--mantle); border: 1px solid var(--surface-2); border-radius: .55rem; }
.program-calendar-header { margin-bottom: 1.25rem; display: flex; align-items: end; justify-content: space-between; gap: 2rem; }
.program-calendar-summary { margin: .7rem 0 0; color: var(--subtext-0); }
.program-calendar-legend { margin: 0; padding: 0; display: flex; flex-wrap: wrap; justify-content: flex-end; gap: .45rem; list-style: none; }
.program-calendar-legend li, .program-calendar-state-label { padding: .3rem .55rem; border: 1px solid currentColor; border-radius: 999px; font-size: var(--font-size-xs); font-weight: 700; }
.program-calendar-state-todo { color: var(--lavender); background: color-mix(in srgb, var(--lavender) 7%, transparent); }

.exercise-toolbar { display: grid; grid-template-columns: minmax(14rem, 2fr) repeat(2, minmax(11rem, 1fr)); gap: 1rem; margin-bottom: 1.5rem; }
.exercise-toolbar label, .exercise-form > label { display: grid; gap: .4rem; color: var(--subtext-0); font-size: var(--font-size-sm); }
.exercise-toolbar input, .exercise-toolbar select, .exercise-form input[type="text"], .exercise-form > label > input, .exercise-form select { width: 100%; min-height: 2.7rem; padding: .65rem .75rem; color: var(--text); background: var(--base); border: 1px solid var(--surface-2); border-radius: .5rem; }
.exercise-list { display: grid; gap: .65rem; }
.exercise-card { display: grid; grid-template-columns: minmax(0, 1fr) auto; align-items: stretch; overflow: hidden; border: 1px solid var(--surface-1); border-radius: .75rem; background: var(--mantle); }
.exercise-card:hover { border-color: var(--lavender); }
.exercise-card-main { display: grid; grid-template-columns: minmax(12rem, 2fr) repeat(3, minmax(8rem, 1fr)); gap: 1rem; align-items: center; padding: 1rem 1.1rem; color: var(--text); background: transparent; border: 0; text-align: left; cursor: pointer; }
.exercise-card-main span { color: var(--subtext-0); font-size: var(--font-size-sm); }
.exercise-card > .quiet-action { margin: .65rem; }
.exercise-pagination { display: flex; justify-content: flex-end; gap: .65rem; margin-top: 1rem; }
.exercise-detail { width: min(100%, 70rem); margin: 0 auto; }
.exercise-detail-heading { display: flex; align-items: end; justify-content: space-between; gap: 1rem; margin: 2rem 0; }
.exercise-facts { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: .75rem; }
.exercise-facts div { padding: 1rem; border: 1px solid var(--surface-1); border-radius: .7rem; background: var(--mantle); }
.exercise-facts dt { margin-bottom: .4rem; color: var(--subtext-0); font-size: var(--font-size-xs); text-transform: uppercase; }
.exercise-facts dd { margin: 0; overflow-wrap: anywhere; }
.protected-identity { align-self: center; color: var(--yellow); font-size: var(--font-size-sm); }
.exercise-form { width: min(100%, 54rem); display: grid; gap: 1rem; margin-top: 2rem; padding: clamp(1rem, 3vw, 2rem); border: 1px solid var(--surface-1); border-radius: var(--radius); background: var(--mantle); }
.exercise-form fieldset { display: flex; flex-wrap: wrap; gap: .75rem 1.25rem; padding: 1rem; border: 1px solid var(--surface-1); border-radius: .65rem; }
.exercise-form legend { padding: 0 .35rem; color: var(--subtext-0); }
.exercise-form fieldset label { display: flex; align-items: center; gap: .45rem; }
.exercise-zone-options { display: grid; grid-template-columns: repeat(2, minmax(12rem, 1fr)); gap: .65rem; width: 100%; }
.profile-confirmation { padding: 1rem; border: 1px solid var(--yellow); border-radius: .65rem; color: var(--yellow); background: rgb(249 226 175 / 7%); }

@media (max-width: 50rem) {
  .exercise-toolbar, .exercise-facts { grid-template-columns: 1fr; }
  .exercise-card { grid-template-columns: 1fr; }
  .exercise-card-main { grid-template-columns: 1fr; gap: .35rem; }
  .exercise-card > .quiet-action { justify-self: start; }
  .exercise-detail-heading { align-items: start; flex-direction: column; }
  .exercise-zone-options { grid-template-columns: 1fr; }
}
.program-calendar-state-prepared { color: var(--yellow); background: color-mix(in srgb, var(--yellow) 8%, transparent); }
.program-calendar-state-in_progress { color: var(--sapphire); background: color-mix(in srgb, var(--sapphire) 9%, transparent); }
.program-calendar-state-completed { color: var(--green); background: color-mix(in srgb, var(--green) 8%, transparent); }
.program-calendar-state-deleted { color: var(--overlay-1); background: color-mix(in srgb, var(--surface-1) 35%, transparent); }
.program-calendar-announcement { min-height: 1.5rem; margin: 0 0 .5rem; color: var(--subtext-0); font-size: var(--font-size-sm); }
.program-calendar-scroll { max-width: 100%; overflow-x: auto; scrollbar-width: thin; outline-offset: .35rem; }
.program-calendar-scroll:focus-visible { outline: 2px solid var(--lavender); }
.program-calendar-grid { min-width: 72rem; display: grid; grid-template-columns: repeat(7, minmax(9rem, 1fr)); border-top: 1px solid var(--surface-1); border-left: 1px solid var(--surface-1); }
.program-calendar-day { min-width: 0; min-height: 12rem; padding: .7rem; background: var(--mantle); border-right: 1px solid var(--surface-1); border-bottom: 1px solid var(--surface-1); }
.program-calendar-day > header { display: grid; grid-template-columns: 1fr auto; align-items: baseline; gap: .15rem .5rem; }
.program-calendar-day > header span { color: var(--subtext-0); font: 700 var(--font-size-xs) var(--font-mono); text-transform: uppercase; }
.program-calendar-day > header strong { color: var(--text); font-size: var(--font-size-lg); }
.program-calendar-day > header time { grid-column: 1 / -1; color: var(--overlay-1); font-size: var(--font-size-xs); }
.program-calendar-rest { margin: 2rem 0 0; color: var(--overlay-1); font-size: var(--font-size-sm); text-align: center; }
.program-calendar-day-sessions { margin-top: .75rem; display: grid; gap: .55rem; }
.program-calendar-session { padding: .65rem; background: var(--base); border: 1px solid var(--surface-1); border-left: .22rem solid currentColor; border-radius: .55rem; }
.program-calendar-session h3 { margin: 0 0 .5rem; color: var(--text); font-size: var(--font-size-sm); line-height: 1.35; }
.program-calendar-state-label { display: inline-flex; padding: .2rem .4rem; }
.program-calendar-action { margin-top: .55rem; display: grid; gap: .4rem; }
.program-calendar-action button, .program-calendar-action a { min-height: 2.35rem; padding: .48rem .6rem; border: 1px solid var(--lavender); border-radius: .45rem; color: var(--text); background: transparent; cursor: pointer; font-size: var(--font-size-xs); text-align: center; text-decoration: none; }
.program-calendar-action button:disabled { cursor: not-allowed; opacity: .55; }
.program-calendar-undated { margin-top: 2rem; padding: clamp(1rem, 3vw, 1.5rem); background: var(--mantle); border: 1px solid var(--surface-1); border-radius: var(--radius); }
.program-calendar-undated > div { display: grid; grid-template-columns: repeat(auto-fit, minmax(13rem, 1fr)); gap: .75rem; }
.import-preview { margin: 1rem 0; padding: 1rem; border: 1px solid var(--blue); border-radius: .75rem; background: var(--mantle); }
.visually-hidden { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0, 0, 0, 0); white-space: nowrap; border: 0; }
@media (max-width: 600px) {
  .program-session-list li { align-items: stretch; flex-direction: column; }
  .program-row .session-row-main { grid-template-columns: 1fr; }
  .program-calendar-header { align-items: start; flex-direction: column; gap: 1rem; }
  .program-calendar-legend { justify-content: flex-start; }
  .program-calendar-scroll { overflow: visible; }
  .program-calendar-grid { min-width: 0; display: grid; grid-template-columns: 1fr; gap: .6rem; border: 0; }
  .program-calendar-day { min-height: 0; border: 1px solid var(--surface-1); border-radius: .65rem; }
  .program-calendar-rest { margin: 1rem 0; text-align: left; }
}
.detail-summary, .detail-tile { margin-bottom: 1rem; padding: 1.1rem; border: 1px solid var(--surface-1); border-radius: .75rem; background: var(--base); }
.detail-occurrences li { display: grid; gap: .35rem; }
.detail-occurrences span, .detail-occurrences small { color: var(--subtext-0); }
.detail-tile code { overflow-wrap: anywhere; color: var(--lavender); }
.draft-payload { max-height: 32rem; overflow: auto; color: var(--subtext-0); font: var(--font-size-sm)/1.6 var(--font-mono); white-space: pre-wrap; }
@media (max-width: 52rem) {
  .session-row-main { grid-template-columns: 1fr 1fr; }
  .form-grid { grid-template-columns: 1fr 1fr; }
  .occurrence-fields { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 30rem) {
  .session-row-main,
  .form-grid,
  .occurrence-fields { grid-template-columns: 1fr; }
  .session-tabs { width: 100%; overflow-x: auto; }
  .session-tabs button { white-space: nowrap; }
  .editor-actions { align-items: stretch; flex-direction: column; }
}

.dashboard-layout { min-width: 0; }
.layout-toolbar { min-height: 2.7rem; margin: -1rem 0 1rem; display: flex; flex-wrap: wrap; justify-content: flex-end; align-items: center; gap: .65rem; }
.layout-action { min-height: 2.45rem; padding: .58rem .82rem; color: var(--subtext-0); background: var(--surface-0); border: 1px solid rgb(108 112 134 / 48%); border-radius: .55rem; font: 650 var(--font-size-xs) var(--font-mono); cursor: pointer; transition: color 140ms ease, border-color 140ms ease, background 140ms ease; }
.layout-action:hover { color: var(--text); border-color: var(--surface-2); background: var(--surface-1); }
.layout-action:focus-visible, .tile:focus-visible { outline: 2px solid var(--lavender); outline-offset: 3px; }
.layout-action-primary { color: var(--crust); background: var(--lavender); border-color: transparent; }
.layout-action-primary:hover { color: var(--crust); background: var(--blue); border-color: transparent; }
.layout-help, .layout-breakpoint-note { margin: 0 auto 0 0; color: var(--subtext-0); font: 550 var(--font-size-xs)/1.4 var(--font-mono); }
.layout-breakpoint-note { flex-basis: 100%; color: var(--yellow); }
.layout-loading { min-height: 12rem; display: grid; place-items: center; color: var(--subtext-0); }
.layout-message { margin: 0 0 1rem; padding: .7rem .85rem; display: flex; align-items: center; gap: .75rem; color: var(--subtext-0); background: var(--surface-0); border-radius: .55rem; font-size: var(--font-size-sm); }
.layout-message.is-error { color: var(--peach); }
.layout-action:disabled { opacity: .55; cursor: not-allowed; }
.dashboard-grid-frame { min-width: 0; }
.dashboard-grid { min-width: 0; }
.dashboard-grid > .react-grid-item { min-width: 0; }
.dashboard-grid .tile { width: 100%; height: 100%; min-height: 0; }
.dashboard-layout.is-editing .dashboard-grid-frame { margin: -.5rem; padding: .5rem; border-radius: calc(var(--radius) + .3rem); background-image: radial-gradient(circle, rgb(180 190 254 / 16%) 1px, transparent 1px); background-size: 1.5rem 1.5rem; }
.dashboard-layout.is-editing .tile { border-color: rgb(180 190 254 / 38%); box-shadow: 0 1.2rem 3rem rgb(0 0 0 / 16%), inset 0 0 0 1px rgb(180 190 254 / 5%); }
.dashboard-layout.is-editing .tile-drag-handle { cursor: grab; }
.dashboard-layout.is-editing .react-draggable-dragging .tile-drag-handle { cursor: grabbing; }
.dashboard-grid .react-grid-placeholder { background: var(--lavender); border-radius: var(--radius); opacity: .16; }
.dashboard-grid .react-grid-item > .react-resizable-handle { display: none; width: 1.2rem; height: 1.2rem; opacity: .42; transition: opacity 120ms ease; }
.dashboard-layout.is-editing .dashboard-grid .react-grid-item > .react-resizable-handle { display: block; }
.dashboard-layout.is-editing .dashboard-grid .react-grid-item > .react-resizable-handle:hover,
.dashboard-layout.is-editing .dashboard-grid .react-grid-item:focus-within > .react-resizable-handle { opacity: .85; }
.dashboard-grid .react-resizable-handle::after { width: .38rem; height: .38rem; border-color: var(--lavender); }
.dashboard-grid .react-resizable-handle-e { top: 50%; right: -.15rem; transform: translateY(-50%) rotate(135deg); }
.dashboard-grid .react-resizable-handle-s { bottom: -.15rem; left: 50%; transform: translateX(-50%) rotate(45deg); }
.tile-compact .empty-glyph { display: none; }
.tile-compact .empty-state p { margin-top: 0; font-size: .82rem; }
.tile-large .tile-content { padding: 1rem; }

.tile-grid { min-width: 0; display: grid; grid-template-columns: repeat(12, minmax(0, 1fr)); gap: 1rem; }
.tile { min-width: 0; grid-column: span 4; min-height: 17rem; padding: clamp(1.15rem, 2vw, 1.6rem); display: flex; flex-direction: column; background: var(--base); border: 1px solid rgb(69 71 90 / 38%); border-radius: var(--radius); box-shadow: 0 1.2rem 3rem rgb(0 0 0 / 12%); }
.tile-wide { grid-column: span 6; }
.tile-feature { grid-column: span 8; min-height: 25rem; }
.tile-header { min-width: 0; display: flex; flex-wrap: wrap; align-items: start; justify-content: space-between; gap: 1rem; }
.tile-header h2 { margin-bottom: 0; }
.tile-state { flex: none; color: var(--subtext-0); font: 650 var(--font-size-xs)/1 var(--font-mono); letter-spacing: .06em; padding: .48rem .62rem; background: var(--surface-0); border-radius: 99rem; }
.tile-state.is-available { color: var(--green); background: rgb(166 227 161 / 8%); }
.tile-state.is-partial { color: var(--yellow); background: rgb(249 226 175 / 8%); }
.tile-content { flex: 1; min-height: 0; margin-top: 1rem; display: block; overflow: auto; scrollbar-width: thin; }
.dashboard-data-message { margin: 0 0 1rem; padding: .65rem .8rem; color: var(--subtext-0); background: rgb(49 50 68 / 45%); border-radius: .5rem; font-size: var(--font-size-sm); }
.dashboard-data-message.is-error { color: var(--peach); }
.dashboard-data-message.is-warning { color: var(--yellow); }
.tile-data-placeholder { height: 100%; display: grid; align-content: center; gap: .65rem; opacity: .5; }
.tile-data-placeholder span { height: .55rem; background: var(--surface-0); border-radius: 99rem; }
.tile-data-placeholder span:nth-child(2) { width: 72%; }.tile-data-placeholder span:nth-child(3) { width: 45%; }
.unavailable-content { height: 100%; display: grid; align-content: center; justify-items: center; text-align: center; color: var(--subtext-0); }
.unavailable-content > strong { color: var(--lavender); font: 500 1.7rem/1 var(--font-mono); }
.unavailable-content p { margin: .65rem 0 0; color: var(--text); font-weight: 600; }
.unavailable-content small { max-width: 24rem; margin-top: .55rem; color: var(--overlay-1); line-height: 1.45; }
.future-action { margin-top: 1.1rem; padding: .45rem .65rem; color: var(--overlay-1); border: 1px dashed var(--surface-1); border-radius: .45rem; font: 600 var(--font-size-xs) var(--font-mono); }
.metric-row { display: flex; flex-wrap: wrap; gap: .8rem 1.5rem; margin-bottom: 1rem; }
.metric { display: grid; }.metric strong { color: var(--text); font-size: var(--font-size-xl); line-height: 1; }.metric span { margin-top: .3rem; color: var(--subtext-0); font-size: var(--font-size-sm); }
.activity-heatmap { display: grid; grid-template-rows: repeat(7, .72rem); grid-auto-flow: column; grid-auto-columns: minmax(.35rem, 1fr); gap: .22rem; min-width: 0; }
.activity-day { background: var(--surface-0); border-radius: .16rem; }.activity-day.is-active { background: var(--lavender); }.activity-day.is-multiple { background: var(--blue); box-shadow: inset 0 0 0 1px rgb(255 255 255 / 25%); }
.chart-legend { margin: .75rem 0 0; color: var(--overlay-1); font-size: var(--font-size-xs); line-height: 1.45; }.legend-swatch { display: inline-block; width: .55rem; height: .55rem; margin-right: .3rem; background: var(--lavender); border-radius: .12rem; }
.primary-label { margin: 0; color: var(--text); font-size: var(--font-size-lg); line-height: 1.3; font-weight: 650; }.secondary-label { margin: .3rem 0 0; color: var(--subtext-0); font-size: var(--font-size-sm); line-height: 1.4; }
.progression-latest { margin: .9rem 0; display: flex; flex-wrap: wrap; align-items: baseline; gap: .4rem .7rem; }.progression-latest strong { color: var(--lavender); font-size: clamp(1.6rem, 3vw, 2.5rem); }.progression-latest span { color: var(--subtext-0); font-size: var(--font-size-sm); }.progression-latest em { color: var(--green); font-size: var(--font-size-xs); font-style: normal; }
.progression-chart { width: 100%; height: 6.5rem; min-height: 6rem; margin-top: .7rem; }
.tile-large .progression-content { height: 100%; display: grid; grid-template-columns: minmax(14rem, .85fr) minmax(18rem, 1.15fr); grid-template-rows: auto auto 1fr auto; column-gap: 1.25rem; align-items: start; }
.tile-large .progression-chart { grid-column: 2; grid-row: 1 / span 4; height: 100%; min-height: 10rem; margin-top: 0; }
.chart-loading { min-height: 8rem; display: grid; place-items: center; color: var(--overlay-1); font-size: var(--font-size-xs); }
.fact-list { margin: .8rem 0 0; }.fact-list.horizontal { display: flex; flex-wrap: wrap; gap: .75rem 1.2rem; }.fact-list div { min-width: 4rem; }.fact-list dt { color: var(--overlay-1); font: 650 var(--font-size-xs)/1.25 var(--font-mono); letter-spacing: .035em; text-transform: uppercase; }.fact-list dd { margin: .25rem 0 0; color: var(--text); font-size: var(--font-size-md); line-height: 1.3; }
.zone-chips { margin-top: 1rem; display: flex; flex-wrap: wrap; gap: .4rem; }.zone-chips span { padding: .38rem .58rem; color: var(--mauve); background: rgb(203 166 247 / 8%); border-radius: 99rem; font-size: var(--font-size-xs); }
.record-list, .muscle-list { margin: 0; padding: 0; list-style: none; }.record-list { display: grid; gap: .72rem; }.record-list li { min-width: 0; display: flex; justify-content: space-between; align-items: center; gap: .8rem; }.record-list div { min-width: 0; display: grid; gap: .12rem; }.record-list strong { overflow: hidden; color: var(--text); font-size: var(--font-size-md); text-overflow: ellipsis; white-space: nowrap; }.record-list span { overflow: hidden; color: var(--overlay-1); font-size: var(--font-size-xs); line-height: 1.3; text-overflow: ellipsis; white-space: nowrap; }.record-list b { flex: none; color: var(--peach); font-size: 1.125rem; }
.partial-note { margin: .8rem 0 0; color: var(--overlay-1); font-size: var(--font-size-xs); }
.muscle-list { display: grid; gap: .58rem; }.muscle-label { min-width: 0; display: flex; justify-content: space-between; gap: 1rem; color: var(--subtext-0); font-size: var(--font-size-sm); line-height: 1.3; }.muscle-label strong { min-width: 0; overflow: hidden; color: var(--text); text-overflow: ellipsis; white-space: nowrap; }.muscle-label span { flex: none; }.muscle-track { height: .3rem; margin-top: .3rem; overflow: hidden; background: var(--surface-0); border-radius: 99rem; }.muscle-track span { display: block; height: 100%; background: var(--mauve); border-radius: inherit; }.muscle-list p { margin: .22rem 0 0; color: var(--overlay-1); font-size: var(--font-size-xs); line-height: 1.3; }
.muscle-content:has(.muscle-visual) { display: grid; grid-template-columns: minmax(12rem, .8fr) minmax(12rem, 1.2fr); gap: 1rem; align-items: start; }
.tile-large .muscle-content:has(.muscle-visual) { grid-template-columns: minmax(18rem, 1.15fr) minmax(16rem, 1.85fr); gap: 1.25rem; }
.body-zone-figure { position: relative; min-width: 0; }
.body-views { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: .45rem; }
.body-views figure { min-width: 0; margin: 0; text-align: center; }
.body-views figcaption { margin-bottom: .15rem; color: var(--overlay-1); font: 650 var(--font-size-xs) var(--font-mono); text-transform: uppercase; letter-spacing: .06em; }
.body-views svg { display: block; width: 100%; height: 10.5rem; overflow: visible; }
.tile-large .body-views svg { height: 16.5rem; }
.body-outline { fill: var(--surface-0); stroke: var(--surface-2); stroke-width: 1.2; }
.body-region { stroke: var(--base); stroke-width: 1.4; vector-effect: non-scaling-stroke; transition: fill 140ms ease, filter 140ms ease; }
.body-region.intensity-0, .muscle-legend .intensity-0 { fill: var(--surface-0); background: var(--surface-0); }
.body-region.intensity-1, .muscle-legend .intensity-1 { fill: var(--sapphire); background: var(--sapphire); opacity: .62; }
.body-region.intensity-2, .muscle-legend .intensity-2 { fill: var(--lavender); background: var(--lavender); opacity: .82; }
.body-region.intensity-3, .muscle-legend .intensity-3 { fill: var(--mauve); background: var(--mauve); }
.body-region[tabindex]:hover, .body-region[tabindex]:focus { outline: none; filter: brightness(1.18) drop-shadow(0 0 .18rem rgb(180 190 254 / 45%)); stroke: var(--text); }
.muscle-legend { margin-top: .35rem; display: flex; flex-wrap: wrap; align-items: center; justify-content: center; gap: .25rem .35rem; color: var(--overlay-1); font-size: var(--font-size-xs); line-height: 1.3; }
.muscle-legend span { width: .65rem; height: .65rem; border-radius: .15rem; }
.body-tooltip { position: absolute; z-index: 2; right: .25rem; bottom: 2.2rem; max-width: calc(100% - .5rem); padding: .5rem .65rem; display: grid; gap: .16rem; color: var(--text); background: rgb(24 24 37 / 96%); border: 1px solid var(--surface-2); border-radius: .45rem; box-shadow: 0 .6rem 1.5rem rgb(0 0 0 / 28%); font-size: var(--font-size-xs); pointer-events: none; }
.body-tooltip span { color: var(--subtext-0); }
.muted { color: var(--subtext-0); }
.tile-compact .tile-content { margin-top: .65rem; }.tile-compact .tile-header { gap: .5rem; }.tile-compact .tile-state { padding: .3rem .42rem; }.tile-compact .activity-heatmap { grid-template-rows: repeat(5, .62rem); }.tile-compact .metric-row { margin-bottom: .65rem; }.tile-compact .progression-latest { margin-bottom: 0; }
.empty-state { max-width: 22rem; color: var(--subtext-0); text-align: center; line-height: 1.5; }
.empty-state p { margin: .75rem 0 0; overflow-wrap: anywhere; }
.empty-glyph { display: inline-grid; width: 2.4rem; height: 2.4rem; place-items: center; color: var(--lavender); background: rgb(180 190 254 / 9%); border-radius: 50%; font: 600 1rem var(--font-mono); }
.principle-panel { grid-column: span 4; min-height: 25rem; padding: 1.6rem; display: flex; flex-direction: column; justify-content: space-between; color: var(--subtext-0); background: var(--mantle); border-radius: var(--radius); }
.principle-panel h2 { font-size: clamp(1.3rem, 2vw, 1.8rem); }
.principle-panel p:last-child { line-height: 1.65; }
.principle-index { color: var(--surface-1); font: 700 4rem/1 var(--font-mono); letter-spacing: -.1em; }

.status-footer { position: fixed; right: 0; bottom: 0; left: 0; z-index: 10; min-height: 3.75rem; padding: .65rem var(--shell-gutter); display: grid; grid-template-columns: 1fr 1.25fr 1.25fr auto; align-items: center; gap: 1.5rem; background: rgb(24 24 37 / 96%); border-top: 1px solid rgb(69 71 90 / 62%); backdrop-filter: blur(16px); }
.status-block { min-width: 0; display: flex; flex-direction: column; gap: .16rem; }
.status-label { color: var(--overlay-1); font: 700 var(--font-size-xs)/1.15 var(--font-mono); letter-spacing: .08em; }
.status-value { overflow: hidden; color: var(--subtext-0); font-size: var(--font-size-md); line-height: 1.25; text-overflow: ellipsis; white-space: nowrap; }
.backend-state { display: flex; align-items: center; gap: .42rem; color: var(--green); font: 650 var(--font-size-xs)/1.2 var(--font-mono); white-space: nowrap; }
.backend-state.is-error { color: var(--red); }
.backend-dot { width: .45rem; height: .45rem; background: currentColor; border-radius: 50%; }

@media (max-width: 70rem) {
  .app-shell { padding-bottom: 5.4rem; }
  .tile { grid-column: span 6; }
  .tile-feature { grid-column: span 8; }
  .principle-panel { grid-column: span 4; }
  .status-footer { grid-template-columns: 1fr 1fr 1fr; }
  .backend-state { grid-column: 1 / -1; justify-self: end; }
}

@media (max-width: 48rem) {
  .app-shell { padding-bottom: 8rem; }
  .app-header { align-items: stretch; flex-direction: column; gap: .55rem; padding-block: .7rem .45rem; }
  .brand { align-self: start; }
  .main-nav { margin-inline: calc(var(--shell-gutter) * -1); padding-inline: var(--shell-gutter); }
  .sync-control { margin-left: 0; justify-content: space-between; }
  .sync-details[open] { position: static; min-width: 0; }
  .page-heading { align-items: start; flex-direction: column; gap: 1rem; }
  .tile-grid { display: flex; flex-direction: column; }
  .tile, .tile-wide, .tile-feature, .principle-panel { width: 100%; grid-column: auto; }
  .tile { min-height: 14rem; }
  .principle-panel { min-height: 17rem; }
  .layout-toolbar { justify-content: flex-start; }
  .layout-help { flex-basis: 100%; }
  .tile-large .progression-content { height: auto; display: block; }
  .tile-large .progression-chart { height: 6.5rem; min-height: 6rem; margin-top: .7rem; }
  .muscle-content:has(.muscle-visual) { grid-template-columns: minmax(0, 1fr); }
  .body-views svg, .tile-large .body-views svg { height: 11rem; }
  .status-footer { grid-template-columns: 1fr 1fr; gap: .8rem 1.25rem; }
  .status-zone { grid-column: 1 / -1; }
  .backend-state { grid-column: 1 / -1; justify-self: start; }
}

@media (max-width: 28rem) {
  .app-shell { padding-bottom: 0; }
  .status-footer { position: static; grid-template-columns: 1fr; }
  .status-zone, .backend-state { grid-column: auto; }
  h1 { font-size: 2.3rem; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { scroll-behavior: auto !important; transition-duration: .01ms !important; animation-duration: .01ms !important; animation-iteration-count: 1 !important; }
  .react-grid-item { transition: none !important; }
}