.plan-shell[hidden] { display: none; }
.new-plan-workspace, .study-calendar-workspace { max-width: 1500px; margin: 0 auto; padding: 24px; color: var(--text); }
.new-plan-header, .plan-card-head, .plan-path-head { display: flex; align-items: flex-start; justify-content: space-between; gap: 16px; }
.new-plan-header { margin-bottom: 20px; }
.new-plan-header h3 { font-size: 28px; margin: 4px 0; }
.new-plan-header p, .plan-muted, .new-plan-aside p { color: var(--muted); line-height: 1.55; }
.plan-kicker { color: var(--primary); font-size: 11px; font-weight: 800; letter-spacing: .12em; text-transform: uppercase; }
.new-plan-layout { display: grid; grid-template-columns: minmax(0, 1fr) 260px; align-items: start; gap: 20px; }
.new-plan-main, .new-plan-aside { display: grid; gap: 18px; min-width: 0; }
.new-plan-card { padding: 22px; border: 1px solid var(--line); border-radius: 14px; background: var(--surface); box-shadow: 0 8px 24px rgba(15, 23, 42, .035); }
.new-plan-card[hidden] { display: none; }
.new-plan-card h4 { margin: 0 0 12px; font-size: 18px; }
.new-plan-card h5 { margin: 20px 0 10px; font-size: 14px; }
.new-plan-card h6 { margin: 12px 0 8px; font-size: 14px; }
.new-plan-card label { display: block; margin: 12px 0 7px; font-weight: 700; }
.new-plan-card textarea { width: 100%; }
.new-plan-actions { display: flex; flex-wrap: wrap; align-items: center; gap: 8px; margin-top: 12px; }
.new-plan-card .btn.small { min-height: 32px; padding: 5px 9px; font-size: 12px; }
.plan-status { min-height: 24px; margin-bottom: 8px; color: var(--muted); }
.plan-status.error { color: #b73737; }
.plan-topic-list { display: grid; gap: 12px; margin-top: 14px; }
.plan-proposal-summary { display: grid; gap: 10px; margin-top: 16px; }
.plan-proposal-summary > div { padding: 12px 14px; border: 1px solid var(--line-soft); border-radius: 10px; background: var(--bg); }
.plan-proposal-summary h5 { margin: 0 0 6px; }
.plan-proposal-summary p, .plan-proposal-summary ul { margin: 0; color: var(--muted); line-height: 1.6; }
.plan-proposal-summary ul { padding-left: 20px; }
.plan-topic, .plan-path { border: 1px solid var(--line-soft); border-radius: 10px; padding: 14px; background: var(--surface); }
.plan-topic-head { display: flex; align-items: center; flex-wrap: wrap; gap: 8px; margin-bottom: 10px; }
.plan-topic-head button:first-of-type { margin-left: auto; }
.plan-activity-edit { display: grid; grid-template-columns: 155px minmax(0, 1fr) auto; gap: 8px; margin: 8px 0; }
.plan-activity-edit .field, .plan-activity-edit .select { min-width: 0; }
.plan-path + .plan-path { margin-top: 10px; }
.plan-path-head p, .plan-exam span { color: var(--muted); font-size: 12px; }
.plan-path-topic { padding-top: 10px; border-top: 1px solid var(--line-soft); }
.plan-path-topic small { font-size: 11px; color: var(--muted); font-weight: 500; }
.plan-path-activity { display: flex; justify-content: space-between; align-items: center; gap: 10px; margin: 6px 0; padding: 8px 10px; border-radius: 8px; background: var(--bg); font-size: 13px; }
.plan-path-activity.done { opacity: .7; }
.plan-path-activity > div { display: flex; flex-wrap: wrap; gap: 6px; }
.plan-exam { display: grid; gap: 5px; margin: 10px 0; padding-bottom: 10px; border-bottom: 1px solid var(--line-soft); }
.plan-diff { padding: 10px; border-radius: 8px; background: #fff8e9; }
.plan-pill { padding: 4px 8px; border-radius: 20px; background: var(--bg); font-size: 12px; }
@media (max-width: 1050px) { .new-plan-layout { grid-template-columns: 1fr; } .new-plan-aside { grid-template-columns: repeat(3, minmax(0, 1fr)); } }
@media (max-width: 700px) { .new-plan-workspace, .study-calendar-workspace { padding: 14px; } .new-plan-aside { grid-template-columns: 1fr; } .plan-activity-edit { grid-template-columns: 1fr; } .plan-path-head, .plan-card-head { display: block; } }
.calendar-toolbar { display: flex; justify-content: space-between; align-items: flex-start; gap: 16px; margin-bottom: 18px; }
.calendar-toolbar h3 { font-size: 28px; margin: 4px 0; }
.calendar-toolbar p { color: var(--muted); }
.calendar-toolbar-actions { display: flex; flex-wrap: wrap; gap: 7px; }
.calendar-notice { min-height: 26px; margin: 8px 0; color: var(--muted); }
.calendar-notice.error { color: #b73737; }
.calendar-layout { display: grid; grid-template-columns: 220px minmax(0, 1fr); gap: 16px; align-items: start; }
.calendar-mini, .calendar-main, .calendar-form-panel { border: 1px solid var(--line); border-radius: 12px; background: var(--surface); }
#calendarEventDialog{width:min(900px,calc(100vw - 32px));max-width:none;max-height:min(90vh,900px);padding:0;border:1px solid var(--workspace-line,#e4e1d9);border-radius:18px;box-shadow:0 24px 70px rgba(25,23,20,.22);overflow:auto}
#calendarEventDialog::backdrop{background:rgba(25,23,20,.48)}
#calendarEventDialog .calendar-form-panel{margin:0;border:0;border-radius:0;background:#fff}
.calendar-mini { padding: 16px; }
.calendar-mini h4 { margin: 0 0 12px; }
.calendar-mini-grid { display: grid; grid-template-columns: repeat(7, minmax(0, 1fr)); gap: 3px; text-align: center; font-size: 12px; }
.calendar-mini-grid > span { padding: 7px 0; color: var(--muted); }
.calendar-mini-grid button { width: 100%; aspect-ratio: 1; border: 0; border-radius: 50%; background: transparent; cursor: pointer; }
.calendar-mini-grid button:hover, .calendar-mini-grid button.selected { background: var(--primary); color: #fff; }
.calendar-color { display: inline-block; width: 8px; height: 8px; margin-right: 7px; border-radius: 50%; }
#calendarSetLegend { display: grid; gap: 7px; margin-top: 14px; font-size: 12px; }
.calendar-main { min-width: 0; overflow: auto; }
.calendar-time-grid { min-width: 680px; }
.calendar-time-grid.day { min-width: 280px; }
.calendar-grid-header, .calendar-grid-row { display: grid; grid-template-columns: 56px repeat(7, minmax(0, 1fr)); }
.calendar-time-grid.day .calendar-grid-header, .calendar-time-grid.day .calendar-grid-row { grid-template-columns: 56px minmax(0, 1fr); }
.calendar-grid-header { position: sticky; top: 0; z-index: 2; background: var(--surface); border-bottom: 1px solid var(--line); }
.calendar-grid-header > span, .calendar-grid-header > button { padding: 12px 4px; border: 0; background: transparent; font-weight: 700; text-align: center; }
.calendar-grid-header button { cursor: pointer; }
.calendar-grid-row > span { padding: 8px 5px; border-bottom: 1px solid var(--line-soft); color: var(--muted); font-size: 11px; }
.calendar-slot { min-height: 62px; padding: 3px; border-left: 1px solid var(--line-soft); border-bottom: 1px solid var(--line-soft); cursor: crosshair; }
.calendar-slot:hover { background: rgba(69, 119, 168, .06); }
.calendar-event { display: grid; gap: 2px; width: 100%; margin-bottom: 3px; padding: 5px 6px; border: 0; border-left: 3px solid; border-radius: 5px; background: var(--bg); text-align: left; cursor: pointer; color: inherit; font-size: 11px; }
.calendar-event strong { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.calendar-event small { color: var(--muted); }
.calendar-month-grid { display: grid; grid-template-columns: repeat(7, minmax(100px, 1fr)); min-width: 720px; }
.calendar-month-blank, .calendar-month-day { min-height: 105px; padding: 7px; border-right: 1px solid var(--line-soft); border-bottom: 1px solid var(--line-soft); }
.calendar-month-day > button:first-child { display: block; margin-bottom: 5px; border: 0; background: transparent; font-weight: 700; cursor: pointer; }
.calendar-form-panel { margin-top: 16px; padding: 20px; }
.calendar-form-panel form { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 12px; }
.calendar-form-panel label { display: grid; gap: 6px; font-weight: 700; font-size: 13px; }
.calendar-form-panel .field, .calendar-form-panel .select { width: 100%; }
.calendar-form-panel .new-plan-actions { grid-column: 1 / -1; }
.calendar-topic-choice { grid-column: 1 / -1; display: flex; flex-wrap: wrap; gap: 8px; }
.calendar-topic-choice strong { flex-basis: 100%; }
.calendar-topic-choice label { display: inline-flex; align-items: center; gap: 4px; padding: 5px 8px; border: 1px solid var(--line-soft); border-radius: 8px; }
.calendar-form-panel [hidden] { display: none; }
.calendar-conflict-prompt { grid-column: 1 / -1; padding: 14px 16px; border: 1px solid #cf9d54; border-radius: 8px; background: #fff7e8; }
.calendar-conflict-prompt ul { margin: 8px 0 12px; padding-left: 20px; line-height: 1.6; }
.calendar-draft-item { display: contents; }
.calendar-draft-item > button { align-self: end; }
@media (max-width: 1300px) { .calendar-layout { grid-template-columns: 1fr; } .calendar-mini { max-width: 320px; } }
@media (max-width: 600px) { .calendar-toolbar { display: block; } .calendar-toolbar-actions { margin-top: 10px; } .calendar-form-panel form { grid-template-columns: 1fr; } }