:root {
  color-scheme: light;
  --paper: #f6f7f9; --surface: #fff; --ink: #20242c; --muted: #68717e;
  --line: #e3e6eb; --line-strong: #bcc3ce; --primary: #304bdb; --on-primary: #fff;
  --tint: #edf0ff; --danger: #b52c3b; --danger-bg: #fff0f1;
  --success: #237153; --success-bg: #eaf5ee;
  --event: #edf0ff; --event-border: #7788db; --monitored: #faf2de; --monitored-border: #ba8b2e;
  --radius: 12px;
  font-family: Inter, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  background: var(--paper); color: var(--ink);
}
:root[data-theme="dark"] {
  color-scheme: dark;
  --paper: #17191e; --surface: #202329; --ink: #eef0f5; --muted: #a3abb8;
  --line: #343943; --line-strong: #596171; --primary: #a3b0ff; --on-primary: #171e4b;
  --tint: #2c3454; --danger: #ff96a1; --danger-bg: #46272f;
  --success: #91d8b6; --success-bg: #223c31;
  --event: #303957; --event-border: #8197f4; --monitored: #433a26; --monitored-border: #d5b366;
}
* { box-sizing: border-box; }
body { margin: 0; min-width: 320px; font-size: 14px; line-height: 1.5; }
button, input, select, textarea { font: inherit; color: inherit; }
button, a, input, select, textarea { -webkit-tap-highlight-color: transparent; }
button { min-height: 42px; border: 1px solid transparent; border-radius: 8px; padding: 9px 16px; background: var(--primary); color: var(--on-primary); font-weight: 600; cursor: pointer; }
button:hover { filter: brightness(.96); }
button:disabled { opacity: .45; cursor: not-allowed; }
button:focus-visible, a:focus-visible, input:focus-visible, select:focus-visible, textarea:focus-visible, summary:focus-visible, [tabindex="0"]:focus-visible { outline: 3px solid var(--primary); outline-offset: 3px; }
[hidden] { display: none !important; }
[data-mode="view"] .admin-only, [data-mode="invalid"] .admin-only { display: none !important; }
a { color: var(--primary); }
.quiet-button { background: var(--surface); border-color: var(--line); color: var(--ink); }
.icon-button { padding: 4px 12px; font-size: 22px; line-height: 1; min-width: 42px; }
.text-button { background: transparent; color: var(--muted); padding: 6px 10px; }
.delete-button { background: transparent; color: var(--danger); border-color: var(--line); }
.skip-link { position: fixed; top: 8px; left: 16px; transform: translateY(-150%); padding: 10px; background: var(--surface); z-index: 100; }
.skip-link:focus { transform: none; }
.app-header { max-width: 1248px; padding: 24px 32px 18px; margin: auto; display: flex; align-items: center; justify-content: space-between; gap: 16px; }
.identity { display: flex; align-items: center; gap: 10px; font-size: 20px; font-weight: 700; letter-spacing: -.5px; text-decoration: none; color: var(--ink); }
.identity-mark { width: 32px; height: 32px; display: grid; place-items: center; background: var(--ink); color: var(--surface); border-radius: 9px; font-size: 24px; line-height: 1; padding-bottom: 4px; }
.header-actions { display: flex; align-items: center; gap: 18px; }
.sync-summary { color: var(--muted); font-size: 12px; display: flex; align-items: center; gap: 7px; }
.sync-summary::before { content: ""; width: 6px; height: 6px; border-radius: 50%; background: var(--line-strong); flex-shrink: 0; }
.sync-summary[data-status="ready"]::before { background: var(--success); }
.sync-summary[data-status="pending"]::before { background: #bf8732; }
.tab-list { display: flex; gap: 4px; max-width: 1184px; margin: 0 auto; border-bottom: 1px solid var(--line); }
.tab-list button { background: transparent; color: var(--muted); border-radius: 0; padding: 14px 20px; min-height: 52px; border-bottom: 2px solid transparent; }
.tab-list button[aria-selected="true"] { color: var(--primary); border-bottom-color: var(--primary); }
main { max-width: 1248px; margin: auto; padding: 36px 32px 80px; }
h1, h2, h3, p { margin: 0; }
h1 { font-size: 28px; line-height: 1.3; font-weight: 650; letter-spacing: -.9px; }
h2 { font-size: 18px; line-height: 1.4; font-weight: 650; letter-spacing: -.35px; }
h3 { font-size: 15px; font-weight: 650; }
.eyebrow { font-size: 12px; color: var(--muted); margin-bottom: 6px; }
.section-heading { display: flex; justify-content: space-between; align-items: center; gap: 20px; margin-bottom: 28px; }
.section-heading p:not(.eyebrow) { margin-top: 8px; color: var(--muted); max-width: 66ch; }
.muted, .field-hint { color: var(--muted); font-size: 12px; }
.schedule-toolbar, .calendar-toolbar { display: flex; align-items: center; justify-content: space-between; gap: 16px; margin-bottom: 22px; }
.segmented { display: flex; gap: 3px; max-width: 100%; overflow: auto; padding: 4px; border: 1px solid var(--line); background: var(--surface); border-radius: 10px; }
.segmented button { background: transparent; color: var(--muted); padding: 6px 13px; min-height: 34px; white-space: nowrap; font-size: 13px; }
.segmented button[aria-pressed="true"] { background: var(--tint); color: var(--primary); }
.day-group { margin-bottom: 24px; }
.day-heading { display: flex; align-items: center; gap: 10px; margin-bottom: 10px; }
.day-heading .count { font-size: 12px; color: var(--muted); }
.session-list { background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius); overflow: hidden; }
.session-row { display: flex; align-items: center; gap: 24px; padding: 18px 20px; border-bottom: 1px solid var(--line); }
.session-row:last-child { border-bottom: 0; }
.session-time { font-weight: 650; font-variant-numeric: tabular-nums; width: 125px; flex-shrink: 0; }
.session-time small { display: block; font-size: 12px; color: var(--muted); font-weight: 400; margin-top: 3px; }
.session-main { flex: 1; min-width: 0; }
.session-main p { color: var(--muted); font-size: 13px; margin-top: 3px; overflow-wrap: anywhere; }
.session-account { display: flex; align-items: center; gap: 8px; min-width: 120px; color: var(--muted); font-size: 13px; }
.avatar { display: grid; place-items: center; width: 28px; height: 28px; flex-shrink: 0; border-radius: 50%; background: var(--paper); border: 1px solid var(--line); color: var(--ink); font-size: 11px; font-weight: 650; }
.session-actions { display: flex; align-items: center; gap: 2px; }
.session-actions .quiet-button { font-size: 12px; min-height: 36px; padding: 7px 12px; }
.empty-day { padding: 24px; border: 1px dashed var(--line-strong); border-radius: var(--radius); color: var(--muted); text-align: center; }
.draft-bar { position: sticky; bottom: 18px; z-index: 5; background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius); padding: 16px 20px; display: flex; align-items: center; justify-content: space-between; gap: 18px; box-shadow: 0 4px 20px #00000008; margin-top: 24px; }
.draft-bar > div:first-child { display: grid; gap: 3px; }
.draft-bar strong { font-size: 13px; }
.draft-bar span { color: var(--muted); font-size: 12px; }
.primary-actions { display: flex; flex-wrap: wrap; gap: 8px; }
.validation-summary { padding: 14px 18px; background: var(--danger-bg); border-radius: 8px; color: var(--danger); margin-top: 16px; }
.validation-summary ul { padding-left: 20px; margin: 6px 0 0; }
.history-section { margin-top: 28px; border-top: 1px solid var(--line); padding-top: 20px; }
.history-section summary { cursor: pointer; font-size: 13px; font-weight: 600; min-height: 40px; }
.history-row { display: flex; align-items: center; gap: 24px; padding: 16px 0; border-bottom: 1px solid var(--line); }
.history-row > div { min-width: 160px; display: grid; gap: 3px; }
.history-row span, .history-row p { color: var(--muted); font-size: 12px; }
.history-row p { flex: 1; }
.history-row button { font-size: 12px; }
.current-label { color: var(--success) !important; }
.week-controls { display: flex; align-items: center; gap: 6px; }
.calendar-toolbar h2 { font-size: 15px; }
.legend { display: flex; gap: 12px; font-size: 11px; color: var(--muted); }
.legend span { display: flex; align-items: center; gap: 5px; }
.dot { display: inline-block; width: 7px; height: 7px; border-radius: 50%; background: var(--primary); }
.dot.planned { background: transparent; border: 1px solid var(--muted); }
.dot.monitored { background: var(--monitored-border); }
.badge { border: 1px solid var(--line); padding: 3px 8px; border-radius: 5px; font-size: 10px; font-weight: 500; white-space: nowrap; color: var(--muted); margin-left: 7px; }
.badge.eoffice { color: var(--success); background: var(--success-bg); border: 0; }
.badge.monitored { background: var(--monitored); color: var(--ink); border: 0; }
#calendar-region { max-width: 100%; overflow: auto; }
.calendar-scroll-hint { display: none; color: var(--muted); font-size: 11px; margin-bottom: 12px; }
.calendar-desktop { display: grid; grid-template-columns: 56px repeat(5, minmax(140px, 1fr)); min-width: 780px; background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius); overflow: hidden; }
.calendar-corner, .calendar-day-heading { height: 60px; border-bottom: 1px solid var(--line); }
.calendar-day-heading { display: flex; align-items: center; justify-content: center; gap: 8px; border-left: 1px solid var(--line); font-size: 12px; color: var(--muted); }
.calendar-day-heading strong { font-size: 18px; color: var(--ink); }
.calendar-day-heading.is-today strong { background: var(--primary); color: var(--on-primary); padding: 2px 8px; border-radius: 6px; }
.time-axis, .calendar-day-column { position: relative; height: var(--calendar-height, 810px); }
.time-axis span { position: absolute; right: 8px; transform: translateY(-50%); font-size: 10px; color: var(--muted); font-variant-numeric: tabular-nums; }
.time-axis span:first-child { transform: none; }
.time-axis span:last-child { transform: translateY(-100%); }
.calendar-day-column { border-left: 1px solid var(--line); background-image: repeating-linear-gradient(to bottom, transparent 0, transparent 29px, var(--line) 30px); }
.calendar-day-column.is-today { background-color: color-mix(in srgb, var(--tint) 35%, transparent); }
.calendar-event { position: absolute; left: calc(var(--calendar-left) + 3px); width: calc(var(--calendar-width) - 6px); min-height: 28px; padding: 5px 6px; border: 1px solid var(--event-border); border-left-width: 3px; border-radius: 5px; background: var(--event); font-size: 11px; line-height: 1.3; outline-offset: 0 !important; }
.calendar-event.is-planned { border-style: dashed; background: var(--surface); }
.calendar-event.is-monitored { background: var(--monitored); border-color: var(--monitored-border); }
.calendar-edit-toolbar { display: flex; align-items: center; gap: 18px; margin-bottom: 20px; flex-wrap: wrap; }
.calendar-edit-toolbar p { color: var(--muted); font-size: 12px; margin: 0; }
.calendar-slot { position: absolute; left: 0; width: 100%; height: 30px; min-height: 0; border: 0; border-radius: 0; padding: 4px 8px; background: transparent; color: var(--primary); text-align: left; font-size: 11px; }
.calendar-slot span { visibility: hidden; }
.calendar-slot:hover, .calendar-slot:focus-visible { background: var(--tint); }
.calendar-slot:hover span, .calendar-slot:focus-visible span { visibility: visible; }
.calendar-event { z-index: 1; }
button.calendar-event { display: flex; align-items: flex-start; color: var(--ink); text-align: left; font-weight: 400; min-height: 28px; }
.calendar-event.is-editable { cursor: pointer; background: var(--tint); }
.calendar-event.is-editable:hover { border-color: var(--primary); }
.calendar-selection { position: absolute; inset-inline: 3px; z-index: 12; padding: 6px; border: 1px solid var(--primary); border-radius: 5px; background: var(--tint); color: var(--ink); font-size: 11px; pointer-events: none; }
.is-selecting { user-select: none; cursor: crosshair; }
.is-selecting .reservation-details { visibility: hidden; }
.recurrence-note { padding: 10px 12px; border-radius: 6px; background: var(--tint); color: var(--ink); }
.dialog-actions .delete-session { margin-right: auto; color: var(--danger); }
.reservation-summary { display: block; overflow: hidden; white-space: nowrap; text-overflow: ellipsis; }
.reservation-details { visibility: hidden; position: absolute; z-index: 20; bottom: calc(100% + 6px); left: 0; width: 210px; padding: 10px; border: 1px solid var(--line-strong); border-radius: 6px; background: var(--surface); color: var(--ink); box-shadow: 0 4px 14px #0002; pointer-events: none; }
.is-tooltip-right .reservation-details { left: auto; right: 0; }
.calendar-event:focus, .calendar-event:hover { z-index: 10; }
.calendar-event:focus .reservation-details, .calendar-event:hover .reservation-details { visibility: visible; }
.settings-layout { display: grid; grid-template-columns: 180px minmax(0, 1fr); gap: 48px; }
.settings-navigation { display: flex; flex-direction: column; gap: 3px; position: sticky; top: 24px; align-self: start; }
.settings-navigation a { text-decoration: none; color: var(--muted); font-size: 13px; border-radius: 7px; padding: 10px 12px; }
.settings-navigation a:hover { background: var(--tint); color: var(--primary); }
.settings-section { background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius); padding: 24px; margin-bottom: 20px; scroll-margin-top: 24px; }
.settings-section-heading { display: flex; justify-content: space-between; align-items: start; gap: 16px; }
.settings-section-heading button { min-width: max-content; font-size: 12px; }
.settings-section > p { color: var(--muted); font-size: 13px; margin-top: 5px; margin-bottom: 8px; }
.setting-row { display: flex; align-items: center; justify-content: space-between; gap: 24px; padding: 18px 0; border-bottom: 1px solid var(--line); }
.setting-row:last-child { border: 0; padding-bottom: 0; }
.setting-row p { color: var(--muted); font-size: 12px; margin-top: 3px; max-width: 55ch; }
.setting-row label, .setting-row strong { font-size: 13px; font-weight: 550; }
.setting-row select { max-width: 180px; }
.toggle { appearance: none !important; width: 38px !important; height: 22px !important; min-height: 22px !important; flex-shrink: 0; padding: 0 !important; border: 1px solid var(--line-strong) !important; border-radius: 20px !important; background: var(--line-strong) !important; position: relative; cursor: pointer; }
.toggle::before { content: ""; position: absolute; left: 3px; top: 3px; width: 14px; height: 14px; border-radius: 50%; background: var(--surface); }
.toggle:checked { background: var(--primary) !important; border-color: var(--primary) !important; }
.toggle:checked::before { left: 19px; background: var(--on-primary); }
.toggle:disabled { opacity: .4; cursor: not-allowed; }
.setting-field { display: grid; gap: 8px; margin-top: 20px; }
.setting-field label { font-size: 13px; font-weight: 550; }
.setting-group { margin-top: 18px; padding: 16px; border: 1px solid var(--line); border-radius: 8px; }
.setting-group .setting-row { padding-top: 12px; }
.setting-group h3 { font-size: 13px; }
.direct-access-list { display: grid; gap: 12px; margin-top: 20px; }
.direct-access-card { border: 1px solid var(--line); border-radius: 8px; padding: 16px; }
.direct-access-heading { display: flex; align-items: start; justify-content: space-between; gap: 16px; }
.direct-access-heading p { color: var(--muted); font-size: 12px; margin-top: 2px; }
.direct-access-heading .delete-button { min-height: 34px; padding: 6px 10px; font-size: 12px; }
.permission-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 9px 16px; margin-top: 14px; }
.permission-grid label, .permission-fieldset label { display: flex; align-items: center; gap: 8px; font-size: 12px; }
.permission-grid input, .permission-fieldset input { width: 17px; height: 17px; min-height: 17px; flex: 0 0 auto; }
.permission-fieldset { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 10px 16px; border: 1px solid var(--line); border-radius: 8px; padding: 14px 16px 16px; }
.permission-fieldset legend { padding: 0 6px; font-size: 12px; font-weight: 600; }
.settings-note { font-size: 12px; color: var(--muted); margin-top: 16px; }
.device-status { padding: 12px 14px; background: var(--paper); border-radius: 8px; font-size: 12px; margin-top: 16px; overflow-wrap: anywhere; }
.state-panel { max-width: 520px; margin: 80px auto; padding: 32px; border: 1px solid var(--line); border-radius: var(--radius); background: var(--surface); display: grid; gap: 12px; text-align: center; justify-items: center; }
.state-panel span { color: var(--muted); }
.compact-state { margin: 0 0 20px; max-width: none; padding: 24px; }
.error-state { border-color: var(--danger); color: var(--danger); }
input, select, textarea { width: 100%; min-height: 42px; padding: 9px 12px; background: var(--surface); border: 1px solid var(--line-strong); border-radius: 7px; }
textarea { resize: vertical; }
dialog { width: min(520px, calc(100vw - 32px)); max-height: calc(100dvh - 32px); border: 1px solid var(--line); border-radius: 16px; padding: 0; background: var(--surface); color: var(--ink); box-shadow: 0 20px 80px #0002; }
dialog::backdrop { background: #14182266; }
dialog form { display: grid; gap: 18px; padding: 28px; }
dialog p { color: var(--muted); font-size: 13px; }
.dialog-heading { display: flex; align-items: center; justify-content: space-between; }
.dialog-heading .eyebrow { font-size: 11px; }
.dialog-actions { display: flex; justify-content: flex-end; gap: 8px; padding-top: 10px; }
.form-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 18px 16px; }
.form-grid label { display: grid; gap: 6px; font-size: 12px; font-weight: 600; }
.full-width { grid-column: 1 / -1; }
.field-hint { font-weight: 400; font-size: 11px; }
.inline-error { padding: 10px; border-radius: 7px; color: var(--danger) !important; background: var(--danger-bg); }
.toast { position: fixed; z-index: 50; bottom: 22px; left: 50%; transform: translateX(-50%); max-width: calc(100vw - 32px); width: max-content; padding: 12px 18px; background: var(--ink); color: var(--surface); border-radius: 9px; box-shadow: 0 4px 20px #0002; font-size: 13px; }
.toast button { background: transparent; color: inherit; border: 1px solid currentColor; margin-left: 12px; min-height: 28px; padding: 3px 10px; }
.toast.is-error { background: var(--danger); color: var(--surface); }
.loader { width: 22px; height: 22px; border: 2px solid var(--line); border-top-color: var(--primary); border-radius: 50%; animation: spin 1s linear infinite; }
@keyframes spin { to { transform: rotate(360deg); } }
@media (min-width: 1400px) { main { padding-top: 44px; } .section-heading { margin-bottom: 32px; } }
@media (max-width: 1000px) {
  .session-row { gap: 16px; padding: 16px; } .session-account { min-width: 95px; }
  .settings-layout { gap: 24px; grid-template-columns: 150px minmax(0, 1fr); }
  .calendar-toolbar { flex-wrap: wrap; } .legend { margin-left: auto; }
  .draft-bar { flex-wrap: wrap; } .draft-bar .primary-actions { margin-left: auto; }
}
@media (max-width: 850px) { .calendar-scroll-hint { display: block; } }
@media (max-width: 680px) {
  .app-header { padding: 18px 18px 12px; } .identity { font-size: 18px; }
  .header-actions { gap: 8px; } .header-actions button { font-size: 11px; padding: 6px 10px; min-height: 34px; }
  .sync-summary { font-size: 10px; max-width: 120px; line-height: 1.35; }
  .tab-list { padding: 0 10px; position: sticky; top: 0; z-index: 8; background: var(--paper); justify-content: stretch; }
  .tab-list button { flex: 1; padding: 13px 8px; font-size: 13px; }
  main { padding: 26px 16px 64px; } h1 { font-size: 24px; }
  .section-heading { gap: 16px; margin-bottom: 24px; align-items: flex-start; }
  .section-heading > button { white-space: nowrap; font-size: 12px; padding: 9px 12px; }
  .section-heading p:not(.eyebrow) { font-size: 12px; } .eyebrow { font-size: 11px; }
  .schedule-toolbar { flex-direction: column; align-items: stretch; gap: 10px; }
  .segmented button { flex: 1; padding: 6px 10px; font-size: 12px; } .schedule-toolbar > span { font-size: 11px; }
  .day-group { margin-bottom: 22px; }
  .session-row { display: grid; grid-template-columns: 1fr auto; gap: 10px 12px; padding: 16px; }
  .session-time { width: auto; font-size: 14px; } .session-time small { display: inline; margin-left: 8px; font-size: 10px; }
  .session-main { grid-column: 1; grid-row: 2; } .session-main p { font-size: 12px; }
  .session-account { grid-column: 2; grid-row: 2; min-width: 0; font-size: 12px; align-self: start; }
  .session-actions { grid-column: 2; grid-row: 1; justify-content: flex-end; }
  .session-actions .quiet-button { padding: 5px 10px; min-height: 32px; }
  .session-actions .text-button { min-height: 32px; font-size: 17px; padding: 4px 8px; }
  .avatar { width: 24px; height: 24px; font-size: 10px; }
  .draft-bar { position: static; padding: 16px; gap: 14px; }
  .draft-bar .primary-actions { margin: 0; width: 100%; display: flex; flex-wrap: wrap; }
  .draft-bar .primary-actions button { flex: 1; font-size: 12px; padding: 9px 10px; }
  #discard-draft { flex-basis: 100%; }
  .history-row { flex-wrap: wrap; gap: 10px; } .history-row > div { flex: 1; } .history-row p { flex-basis: 100%; order: 3; }
  .calendar-toolbar { display: grid; grid-template-columns: 1fr auto; gap: 14px; }
  .calendar-toolbar h2 { grid-row: 1; grid-column: 1 / -1; font-size: 15px; }
  .week-controls { grid-column: 1; } .legend { grid-column: 1 / -1; margin: 0; } .calendar-heading { flex-wrap: wrap; }
  .badge { font-size: 9px; }
  .settings-layout { display: block; }
  .settings-navigation { position: static; display: flex; flex-direction: row; overflow: auto; gap: 4px; margin: -4px 0 20px; padding-bottom: 4px; }
  .settings-navigation a { white-space: nowrap; border: 1px solid var(--line); background: var(--surface); padding: 8px 10px; font-size: 12px; }
  .settings-section { padding: 18px; scroll-margin-top: 70px; } .settings-section h2 { font-size: 17px; }
  .settings-section-heading button { padding: 8px 10px; min-height: 38px; }
  .setting-row { gap: 16px; } .setting-row select { width: 145px; font-size: 12px; flex-shrink: 0; }
  .setting-row p { font-size: 11px; } .setting-group { padding: 12px; }
  .direct-access-card { padding: 13px; } .permission-grid, .permission-fieldset { grid-template-columns: 1fr; }
  .form-grid { gap: 14px 12px; } dialog form { padding: 22px; }
  input, select, textarea { font-size: 16px; } .setting-field textarea { font-size: 14px; }
  .toast { bottom: 16px; } .session-row .badge { margin: 0 0 0 5px; } .empty-day { font-size: 12px; padding: 18px; }
}
@media (prefers-reduced-motion: reduce) { * { animation: none !important; scroll-behavior: auto !important; } }