.activity-panel {
    --activity-accent: #5fd1b5;
    --activity-accent-strong: #20a985;
    --activity-plan: #f2b84b;
    --activity-done: #5fd1b5;
    --activity-main: #f47ca7;
    display: grid;
    gap: 16px;
    padding: 16px 12px 28px;
}

.activity-heading,
.activity-calendar-head,
.activity-taskchute-status > div {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
}

.activity-heading h2,
.activity-heading p,
.activity-calendar-head h3,
.activity-day-detail h3 {
    margin: 0;
}

.activity-heading p,
.activity-reference p,
.activity-sync-control p {
    margin: 4px 0 0;
    color: var(--text-sub, #a8acb8);
    font-size: .88rem;
}

.activity-status-badge {
    flex: 0 0 auto;
    padding: 5px 9px;
    border: 1px solid color-mix(in srgb, var(--activity-accent) 55%, transparent);
    border-radius: 999px;
    color: var(--activity-accent);
    font-size: .75rem;
}

.activity-disabled,
.activity-day-detail,
.activity-reference,
.activity-settings,
.activity-sync-control,
.activity-taskchute-status {
    border: 1px solid rgba(255, 255, 255, .11);
    border-radius: 14px;
    background: rgba(255, 255, 255, .045);
    padding: 14px;
}

.activity-disabled {
    text-align: center;
}

.activity-disabled p {
    max-width: 38rem;
    margin: 0 auto 12px;
}

.activity-disabled button,
.activity-sync-control button,
.activity-calendar-head button,
.activity-taskchute-status button,
.activity-celebration-card button {
    border: 0;
    border-radius: 10px;
    background: var(--activity-accent-strong);
    color: #fff;
    font: inherit;
    font-weight: 700;
    padding: 9px 13px;
    cursor: pointer;
}

.activity-disabled button:disabled,
.activity-sync-control button:disabled {
    cursor: default;
    opacity: .5;
}

#activityEnabledContent {
    display: grid;
    gap: 16px;
}

#activityEnabledContent[hidden] {
    display: none;
}

.activity-stats-grid {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 9px;
}

.activity-stat {
    display: grid;
    gap: 4px;
    min-width: 0;
    padding: 11px;
    border: 1px solid rgba(255, 255, 255, .1);
    border-radius: 12px;
    background: rgba(0, 0, 0, .12);
}

.activity-stat strong {
    color: var(--activity-accent);
}

.activity-stat span {
    font-size: .8rem;
    overflow-wrap: anywhere;
}

.activity-stat-wide {
    grid-column: 1 / -1;
    grid-template-columns: auto repeat(3, minmax(0, 1fr));
    align-items: center;
}

.activity-calendar-head button {
    min-width: 42px;
    padding: 7px 12px;
    font-size: 1.25rem;
}

.activity-weekdays,
.activity-calendar {
    display: grid;
    grid-template-columns: repeat(7, minmax(0, 1fr));
    gap: 5px;
}

.activity-weekdays span {
    color: var(--text-sub, #a8acb8);
    font-size: .75rem;
    text-align: center;
}

.activity-day {
    position: relative;
    min-height: 46px;
    border: 1px solid rgba(255, 255, 255, .1);
    border-radius: 9px;
    background: rgba(255, 255, 255, .035);
    color: inherit;
    font: inherit;
}

.activity-day.today {
    border-color: var(--activity-accent);
}

.activity-day.selected {
    outline: 2px solid color-mix(in srgb, var(--activity-accent) 70%, transparent);
    outline-offset: 1px;
}

.activity-marks {
    position: absolute;
    right: 4px;
    bottom: 4px;
    display: flex;
    gap: 2px;
}

.activity-mark {
    width: 6px;
    height: 6px;
    border-radius: 50%;
}

.activity-mark.plan { background: var(--activity-plan); }
.activity-mark.done { background: var(--activity-done); }
.activity-mark.main { background: var(--activity-main); }

.activity-day-detail ul {
    display: grid;
    gap: 7px;
    margin: 10px 0 0;
    padding-left: 1.3rem;
}

.activity-reference > span {
    display: block;
    margin-top: 6px;
}

.activity-reference pre {
    max-height: 220px;
    overflow: auto;
    white-space: pre-wrap;
    overflow-wrap: anywhere;
}

.activity-settings > label,
.activity-sync-control label {
    display: block;
    margin: 12px 0;
}

.activity-sync-control {
    margin: 12px 0;
}

.activity-taskchute-status {
    display: grid;
    gap: 10px;
    margin-bottom: 12px;
    border-color: color-mix(in srgb, var(--activity-accent) 45%, transparent);
}

.activity-taskchute-status label {
    display: grid;
    grid-template-columns: auto minmax(0, 1fr);
    align-items: center;
    gap: 8px;
}

.activity-taskchute-status select {
    min-width: 0;
}

.activity-start-flash {
    animation: activity-start-flash .45s ease-out;
}

@keyframes activity-start-flash {
    50% { box-shadow: 0 0 0 5px color-mix(in srgb, var(--activity-accent) 35%, transparent); }
}

.activity-celebration-overlay {
    position: fixed;
    inset: 0;
    z-index: 10000;
    display: grid;
    place-items: center;
    padding: 20px;
    background: rgba(0, 0, 0, .68);
    animation: activity-overlay-in .2s ease-out;
}

.activity-celebration-card {
    display: flex;
    flex-direction: column;
    width: min(92vw, 420px);
    max-height: calc(100dvh - 40px);
    overflow: hidden;
    border: 1px solid color-mix(in srgb, var(--activity-accent) 65%, transparent);
    border-radius: 18px;
    background: var(--bg-card, #252731);
    padding: 20px;
    box-shadow: 0 22px 60px rgba(0, 0, 0, .45);
}

.activity-celebration-card h2 {
    margin: 0 0 10px;
}

.activity-celebration-card ul {
    min-height: 0;
    flex: 1 1 auto;
    overflow: auto;
    margin: 0 0 14px;
    padding-left: 1.3rem;
}

.activity-celebration-overlay.calm,
.activity-celebration-overlay.calm .activity-celebration-card {
    animation: none;
}

@keyframes activity-overlay-in {
    from { opacity: 0; }
    to { opacity: 1; }
}

@media (max-width: 640px) {
    .activity-stats-grid { grid-template-columns: 1fr; }
    .activity-stat-wide { grid-column: auto; grid-template-columns: 1fr; }
    .activity-heading { align-items: flex-start; }
    .activity-day { min-height: 41px; padding: 4px; }
    .activity-taskchute-status label { grid-template-columns: 1fr; }
}

@media (prefers-reduced-motion: reduce) {
    .activity-start-flash,
    .activity-celebration-overlay { animation: none; }
}