.btn {
    border: thin solid var(--shadow-black-06);
    /* border: none; */
    border-radius: 8px;
    font-size: 1.6rem;
    cursor: pointer;
    transition: transform 0.1s, box-shadow 0.1s;
    /* box-shadow: 0 4px 12px var(--shadow-black-15); */
    box-shadow: 0 2px 8px var(--shadow-black-15);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 0.3rem;
    min-height: 90px;
    padding: 0.75rem 0.5rem;
    text-align: center;     
}

.btn span.label {
    font-size: 0.8rem;
    font-weight: 600;
    letter-spacing: 0.05em;
    vertical-align: middle;
    color: var(--color-text);
}

.btn:active {
    transform: scale(0.93);
    box-shadow: 0 2px 6px var(--shadow-black-22);
}

.btn-pee {
    background: var(--color-pee-bg);
    background: linear-gradient(320deg, var(--color-pee-bg) 0%, var(--color-pee-bg-80) 100%);
    transition: scale 0.15s ease;
}

.btn-pee-outside {
    background: var(--color-pee-outside-bg);
    background: linear-gradient(320deg, var(--color-pee-outside-bg-80) 0%, var(--color-pee-outside-bg) 100%);
    transition: scale 0.15s ease;
}

.btn-poo {
    background: var(--color-brand);
    background: linear-gradient(320deg, var(--color-brand) 0%, var(--color-brand-80) 100%);
    transition: scale 0.15s ease;
    box-shadow: 0 2px 8px var(--shadow-black-22);
}

.btn-litterbox {
    background: var(--color-green-bg-active);
    background: linear-gradient(320deg, var(--color-green-bg-active) 0%, var(--color-green-bg-active-80) 100%);
    transition: scale 0.15s ease;
}

/* .btn:hover {
    background: var(--color-green-bg-hover); 
    scale: 1.05;    
} */

.toast {
    position: fixed;
    top:0.1rem;
    left: 50%;
    transform: translateX(-50%) translateY(-90px);
    background: var(--color-text);
    color: var(--color-surface);
    padding: 0.6rem 1.4rem; /* 30% smaller */
    border-radius: 8px;
    font-size: 0.9rem; /* 30% smaller */
    transition: transform 0.3s ease;
    pointer-events: none;
    z-index: 999;
}

.toast.show {
    transform: translateX(-50%) translateY(0);
}

/* ── Recent events (day cards) ── */

.day-card {
    background: var(--color-surface);
    border-radius: 8px;
    box-shadow: 0 2px 8px var(--shadow-black-08);
    overflow: hidden;
    flex-shrink: 0; /* prevent flex from shrinking cards to fit the scroll container */
}

.day-card:last-child {
    flex-grow: 1; /* let the last card absorb leftover space so the list reaches the bottom */
}

.day-card-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    background: var(--color-surface-tan);
    color: var(--color-brand-dark);
    font-weight: 600;
    font-size: 0.95rem;
    letter-spacing: 0.03em;
    padding: 0.6rem 1rem;
}

.day-card-entry {
    display: flex;
    align-items: center;
    gap: 0.6rem;
    padding: 0.7rem 1rem;
    border-top: 1px solid var(--color-surface-hover);
}

/* .day-card-entry:nth-child(even) {
    background: var(--color-surface-alt);
} */

.day-card-entry:hover {
    background: var(--color-surface-hover);
}

.day-card-entry-type {
    font-weight: 600;
}

.day-card-entry-time {
    color: var(--color-text-muted);
    font-size: 0.9rem;
}

.day-card-entry-outside {
    color: var(--color-outside);
    font-size: 0.78rem;
    font-weight: 600;
    background: var(--color-surface-tan);
    padding: 0.1rem 0.45rem;
    border-radius: 999px;
}

.day-card-entry .del-btn {
    margin-left: auto;
}

.day-name {
    margin-right: 0.3rem;
}

.day-count {
    float: right;
    background: var(--color-badge-bg);
    color: var(--color-badge-text);
    border-radius: 999px;
    padding: 0.05rem 0.55rem;
    font-size: 0.9rem;
    font-weight: 700;
}

.type-pee {
    color: var(--color-pee);
    font-weight: 600;
}

.type-poo {
    color: var(--color-poo);
    font-weight: 600;
}

.type-litterbox {
    color: var(--color-litterbox);
    font-weight: 600;
}

.del-btn {
    background: none;
    border: none;
    cursor: pointer;
    color: var(--color-text-subtle);
    font-size: 1rem;
    padding: 0 0.3rem;
    line-height: 1;
    transition: color 0.15s;
}

.del-btn:hover {
    color: var(--color-danger);
}

.empty {
    text-align: center;
    color: var(--color-text-faint);
    padding: 1.5rem;
    font-style: italic;
}

/* ── Litterbox confirm dialog ── */

.litter-dialog-backdrop {
    display: none;
    position: fixed;
    inset: 0;
    background: var(--overlay-backdrop);
    z-index: 200;
    align-items: center;
    justify-content: center;
    padding: 1rem;
}

.litter-dialog-backdrop.open {
    display: flex;
}

.litter-dialog {
    background: var(--color-bg);
    border-radius: 16px;
    padding: 1.5rem 1.5rem 1.2rem;
    max-width: 320px;
    width: 100%;
    box-shadow: 0 8px 32px var(--shadow-black-22);
    font-family: 'Open Sans', sans-serif;
}

.litter-dialog p {
    font-size: 1rem;
    color: var(--color-text);
    margin-bottom: 1.2rem;
    text-align: center;
}

.litter-dialog-btns {
    display: flex;
    gap: 0.7rem;
    justify-content: flex-end;
}

.litter-dialog-btns button {
    padding: 0.45rem 1.1rem;
    border-radius: 8px;
    border: none;
    font-size: 0.95rem;
    font-weight: 600;
    cursor: pointer;
    font-family: 'Open Sans', sans-serif;
    background: var(--color-surface-tan);
    color: var(--color-text-secondary);
    transition: background 0.15s;
}

.litter-dialog-btns button:hover {
    background: var(--color-surface-tan-hover);
}

.litter-dialog-confirm {
    background: var(--color-green) !important;
    color: var(--color-surface) !important;
}

.litter-dialog-confirm:hover {
    background: var(--color-green-dark) !important;
}

.cal-grid {
    width: 100%;
    max-width: 520px;
    display: grid;
    grid-template-columns: repeat(7, 1fr);
    gap: 4px;
}

.cal-day-name {
    text-align: center;
    font-size: 0.75rem;
    font-weight: 600;
    color: var(--color-text-faint);
    padding: 0.3rem 0;
}

.cal-cell {
    background: var(--color-surface);
    border-radius: 8px;
    min-height: 96px;
    padding: 0.35rem 0.4rem;
    box-shadow: 0 1px 4px var(--shadow-black-06);
    display: flex;
    flex-direction: column;
    gap: 0.2rem;
}

.cal-cell.empty {
    background: transparent;
    box-shadow: none;
}

.cal-cell.today {
    outline: 2px solid var(--color-brand);
}

.cal-num {
    font-size: 0.8rem;
    font-weight: 600;
    color: var(--color-text-muted);
    position: relative;
    display: flex;
    align-items: center;
    gap: 0.3rem;
}

.cal-cell.alert {
    background: var(--color-alert-bg-hover);
}

.cal-cell.alert:not(.empty):hover {
    background: var(--color-alert-bg-hover);
}

.cal-counts {
    display: flex;
    flex-direction: column;
    gap: 1px;
    font-size: 1rem;
}

.cal-pee {
    color: var(--color-pee);
    font-weight: 600;
}

.cal-poo {
    color: var(--color-poo);
    font-weight: 600;
}

.cal-litterbox-dot {
    display: inline-block;
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: var(--color-green);
    flex-shrink: 0;
}

.cal-cell:not(.empty) {
    cursor: pointer;
    transition: background 0.15s, box-shadow 0.15s;
}

.cal-cell:not(.empty):hover {
    background: var(--color-cell-hover-bg);
    box-shadow: 0 2px 8px var(--shadow-black-10);
}

/* ── Day modal ── */

.modal-backdrop {
    display: none;
    position: fixed;
    inset: 0;
    background: var(--overlay-backdrop);
    z-index: 100;
    align-items: center;
    justify-content: center;
    padding: 1rem;
}

.modal-backdrop.open {
    display: flex;
}

.modal {
    background: var(--color-bg);
    border-radius: 16px;
    width: 100%;
    max-width: 460px;
    max-height: 85vh;
    display: flex;
    flex-direction: column;
    overflow: hidden;
    box-shadow: 0 8px 32px var(--shadow-black-22);
}

.modal-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 1rem 1.2rem 0.75rem;
    border-bottom: 1px solid var(--color-surface-tan);
    font-family: 'Datatype', monospace;
}

.modal-header h3 {
    font-size: 1.1rem;
    color: var(--color-brand-dark);
}

.modal-close {
    background: none;
    border: none;
    font-size: 1.2rem;
    cursor: pointer;
    color: var(--color-text-faint);
    padding: 0.2rem 0.5rem;
    border-radius: 6px;
    transition: background 0.15s;
    line-height: 1;
}

.modal-close:hover { background: var(--color-surface-tan); color: var(--color-text-secondary); }

.modal-entries {
    flex: 1;
    overflow-y: auto;
    padding: 0.25rem 0;
    min-height: 3rem;
}

.modal-entry {
    display: flex;
    align-items: center;
    gap: 0.6rem;
    padding: 0.6rem 1.2rem;
    font-family: 'Datatype', monospace;
    font-size: 1rem;
    border-bottom: 1px solid var(--color-surface-hover);
}

.modal-entry:last-child { border-bottom: none; }

.modal-entry-type { font-weight: 600; }
.modal-entry-type.pee { color: var(--color-pee); }
.modal-entry-type.poo { color: var(--color-poo); }
.modal-entry-type.litterbox { color: var(--color-litterbox); }
.modal-entry-time { color: var(--color-text-muted); font-size: 0.95rem; }
.modal-entry-outside { color: var(--color-outside); font-size: 0.8rem; font-weight: 600; background: var(--color-surface-tan); padding: 0.1rem 0.4rem; border-radius: 999px; }

.modal-entry-del {
    background: none;
    border: none;
    cursor: pointer;
    color: var(--color-text-disabled);
    font-size: 1rem;
    padding: 0.2rem 0.4rem;
    transition: color 0.15s;
    margin-left: auto;
    flex-shrink: 0;
}

.modal-entry-del:hover { color: var(--color-danger); }

.modal-no-entries {
    text-align: center;
    color: var(--color-text-faint);
    font-style: italic;
    padding: 1.2rem;
    font-size: 0.95rem;
    font-family: 'Datatype', monospace;
}

.modal-add {
    border-top: 2px solid var(--color-surface-tan);
    padding: 0.9rem 1.2rem;
    display: flex;
    flex-direction: column;
    gap: 0.7rem;
    background: var(--color-surface-soft);
}

.modal-add h4 {
    font-size: 0.85rem;
    color: var(--color-brand-heading);
    font-family: 'Datatype', monospace;
    letter-spacing: 0.05em;
    text-transform: uppercase;
}

.modal-add-row {
    display: flex;
    align-items: center;
    gap: 0.6rem;
    flex-wrap: wrap;
}

.add-type-btn {
    padding: 0.4rem 1rem;
    border: 2px solid transparent;
    border-radius: 999px;
    cursor: pointer;
    font-size: 0.95rem;
    font-weight: 600;
    transition: all 0.15s;
    font-family: 'Datatype', monospace;
    opacity: 0.45;
    color: var(--color-text);
}

#add-pee         { background: var(--color-pee-bg); }
#add-pee-outside { background: var(--color-pee-outside-bg); }
#add-poo         { background: var(--color-brand); }
#add-litterbox   { background: var(--color-green-bg-active); }

.add-type-btn.active {
    opacity: 1;
    border-color: var(--color-text-secondary);
    box-shadow: 0 2px 6px var(--shadow-black-18);
}

.add-type-btn:not(.active):hover { opacity: 0.75; }

.modal-add label {
    display: flex;
    align-items: center;
    gap: 0.4rem;
    font-size: 0.9rem;
    color: var(--color-text-secondary);
    font-family: 'Datatype', monospace;
}

.modal-add input[type="time"] {
    border: 1px solid var(--color-surface-tan-hover);
    border-radius: 6px;
    padding: 0.3rem 0.5rem;
    font-size: 0.9rem;
    font-family: 'Datatype', monospace;
    background: var(--color-surface);
}

.modal-add-footer {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.modal-add-btn {
    background: var(--color-brand);
    color: var(--color-surface);
    border: none;
    border-radius: 999px;
    padding: 0.45rem 1.4rem;
    font-size: 0.95rem;
    font-weight: 700;
    cursor: pointer;
    font-family: 'Datatype', monospace;
    transition: background 0.15s;
}

.modal-add-btn:hover { background: var(--color-brand-hover); }

.chart-row {
    display: flex;
    align-items: center;
    gap: 0.6rem;
    padding: 0.3rem 0;
}

.chart-label {
    width: 90px;
    flex-shrink: 0;
    font-family: 'Datatype', monospace;
    font-size: 0.85rem;
    color: var(--color-text-muted);
}

.chart-bar-track {
    flex: 1;
    height: 20px;
    background: var(--color-surface-tan);
    border-radius: 6px;
    overflow: hidden;
    display: flex;
}

.chart-bar-track.alert {
    background: var(--color-alert-bg-hover);
}

.chart-bar-fill {
    height: 100%;
    background: var(--color-pee-bg);
    transition: width 0.2s;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
    font-family: 'Datatype', monospace;
    font-size: 0.75rem;
    font-weight: 700;
    color: var(--color-pee-dark);
}

.chart-bar-fill-outside {
    height: 100%;
    background: var(--color-pee-outside-bg);
    transition: width 0.2s;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
    font-family: 'Datatype', monospace;
    font-size: 0.75rem;
    font-weight: 700;
    color: var(--color-outside);
}

.chart-value {
    width: 28px;
    flex-shrink: 0;
    text-align: right;
    font-family: 'Datatype', monospace;
    font-weight: 600;
    color: var(--color-pee);
}

.chart-sentinel {
    text-align: center;
    color: var(--color-text-faint);
    font-style: italic;
    padding: 1rem;
    font-size: 0.9rem;
}

.chart-sentinel.chart-retry {
    color: var(--color-outside);
    font-style: normal;
    font-weight: 600;
    cursor: pointer;
    text-decoration: underline;
}

.error-msg {
    font-size: 1.1rem;
    font-weight: 600;
    margin-bottom: 1rem;
}

.btn-retry {
    width: 120px;
    height: 120px;
    margin: 0 auto;
    font-size: 1rem;
    text-decoration: none;
    color: var(--color-text);
    text-transform: uppercase;
    font-weight: bold;
}