.sdstodo-hero {
    max-width: 520px;
    margin: 48px auto 0;
    padding: 0 28px;
    text-align: center;
}
.sdstodo-eyebrow {
    font-family: 'JetBrains Mono', monospace;
    font-size: 11.5px;
    letter-spacing: 0.06em;
    text-transform: uppercase;
    color: #22C55E;
}
.sdstodo-hero h1 {
    font-family: 'Space Grotesk', sans-serif;
    font-weight: 600;
    font-size: 30px;
    color: #F1F2F6;
    margin: 10px 0 8px;
}
.sdstodo-hero p { color: #8A8F9C; font-size: 14px; margin: 0; }

.sdstodo-wrap {
    max-width: 480px;
    margin: 32px auto 60px;
    padding: 0 28px;
}

.sdstodo-input-row {
    display: flex;
    gap: 8px;
    margin-bottom: 14px;
    flex-wrap: wrap;
}
.sdstodo-text-input { flex: 1; min-width: 160px; }
.sdstodo-input-row input {
    background: #171A23;
    border: 1px solid #262A35;
    border-radius: 9px;
    padding: 11px 14px;
    color: #F1F2F6;
    font-size: 13.5px;
    font-family: 'Inter', sans-serif;
}
.sdstodo-date-input {
    color-scheme: dark;
    width: 150px;
}
.sdstodo-input-row input:focus { outline: none; border-color: #22C55E; }
.sdstodo-input-row input::placeholder { color: #5A5F6D; }

.sdstodo-add-btn {
    background: #22C55E;
    color: #0F1117;
    border: none;
    border-radius: 9px;
    padding: 0 18px;
    font-size: 13px;
    font-weight: 600;
    cursor: pointer;
    white-space: nowrap;
}
.sdstodo-add-btn:disabled { background: #1D2029; color: #5A5F6D; cursor: not-allowed; }

.sdstodo-filters {
    display: flex;
    align-items: center;
    gap: 6px;
    margin-bottom: 14px;
    flex-wrap: wrap;
}
.sdstodo-filter-btn {
    background: transparent;
    border: 1px solid #262A35;
    color: #8A8F9C;
    border-radius: 7px;
    padding: 5px 12px;
    font-size: 12px;
    cursor: pointer;
    font-family: 'Inter', sans-serif;
}
.sdstodo-filter-btn.active { background: rgba(34,197,94,0.14); border-color: #22C55E; color: #4ADE80; }
.sdstodo-count { margin-left: auto; font-size: 11.5px; color: #5A5F6D; }

.sdstodo-list { display: flex; flex-direction: column; gap: 8px; }

.sdstodo-item {
    display: flex;
    align-items: center;
    gap: 12px;
    background: #171A23;
    border: 1px solid #262A35;
    border-radius: 10px;
    padding: 12px 14px;
    transition: opacity .2s;
}
.sdstodo-item.done { opacity: 0.55; }

.sdstodo-checkbox {
    position: relative;
    display: inline-flex;
    cursor: pointer;
    flex-shrink: 0;
}
.sdstodo-checkbox input { position: absolute; opacity: 0; width: 20px; height: 20px; cursor: pointer; margin: 0; }
.sdstodo-checkmark {
    width: 20px; height: 20px;
    border: 1.5px solid #3A3F4C;
    border-radius: 6px;
    display: inline-block;
    position: relative;
    transition: background .15s, border-color .15s;
}
.sdstodo-checkbox input:checked ~ .sdstodo-checkmark {
    background: #22C55E;
    border-color: #22C55E;
}
.sdstodo-checkmark::after {
    content: "";
    position: absolute;
    left: 6px; top: 2px;
    width: 5px; height: 10px;
    border: solid #0F1117;
    border-width: 0 2px 2px 0;
    transform: rotate(45deg);
    opacity: 0;
    transition: opacity .1s;
}
.sdstodo-checkbox input:checked ~ .sdstodo-checkmark::after { opacity: 1; }

.sdstodo-text {
    flex: 1;
    font-size: 13.5px;
    color: #F1F2F6;
}
.sdstodo-item.done .sdstodo-text { text-decoration: line-through; color: #6B7280; }

.sdstodo-delete {
    background: none;
    border: none;
    color: #4A4F5C;
    cursor: pointer;
    font-size: 13px;
    padding: 4px;
}
.sdstodo-delete:hover { color: #FF5C77; }

.sdstodo-empty {
    text-align: center;
    color: #5A5F6D;
    font-size: 13px;
    padding: 32px 0;
}

.sdstodo-clear {
    display: block;
    margin: 18px auto 0;
    background: none;
    border: none;
    color: #6B7280;
    font-size: 12px;
    cursor: pointer;
    text-decoration: underline;
}
.sdstodo-clear:hover { color: #FF5C77; }

/* Tab vista Lista/Calendario */
.sdstodo-viewtabs {
    display: flex;
    gap: 6px;
    margin-bottom: 14px;
    background: #171A23;
    border: 1px solid #262A35;
    border-radius: 9px;
    padding: 4px;
    width: fit-content;
}
.sdstodo-view-btn {
    background: transparent;
    border: none;
    color: #8A8F9C;
    padding: 6px 14px;
    border-radius: 6px;
    font-size: 12.5px;
    cursor: pointer;
    font-family: 'Inter', sans-serif;
}
.sdstodo-view-btn.active { background: #22C55E; color: #0F1117; font-weight: 600; }

/* Corpo item con testo + badge data */
.sdstodo-item-body {
    flex: 1;
    display: flex;
    flex-direction: column;
    gap: 3px;
}
.sdstodo-due {
    font-size: 10.5px;
    color: #6B7280;
    font-family: 'JetBrains Mono', monospace;
    width: fit-content;
}
.sdstodo-due.overdue { color: #FF5C77; }

/* Calendario */
.sdstodo-calendar {
    background: #171A23;
    border: 1px solid #262A35;
    border-radius: 12px;
    padding: 18px;
}

.sdstodo-cal-header {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 18px;
    margin-bottom: 14px;
}
.sdstodo-cal-header button {
    background: #0F1117;
    border: 1px solid #262A35;
    color: #F1F2F6;
    border-radius: 6px;
    width: 26px; height: 26px;
    cursor: pointer;
    font-size: 13px;
}
.sdstodo-cal-month {
    font-family: 'Space Grotesk', sans-serif;
    font-weight: 600;
    font-size: 14px;
    color: #F1F2F6;
    text-transform: capitalize;
    min-width: 130px;
    text-align: center;
}

.sdstodo-cal-weekdays {
    display: grid;
    grid-template-columns: repeat(7, 1fr);
    text-align: center;
    font-size: 10.5px;
    color: #5A5F6D;
    font-family: 'JetBrains Mono', monospace;
    margin-bottom: 6px;
}

.sdstodo-cal-grid {
    display: grid;
    grid-template-columns: repeat(7, 1fr);
    gap: 4px;
}

.sdstodo-cal-cell {
    aspect-ratio: 1;
    border-radius: 8px;
    background: #0F1117;
    border: 1px solid transparent;
    padding: 6px;
    cursor: pointer;
    display: flex;
    flex-direction: column;
    gap: 4px;
    transition: border-color .15s, background .15s;
}
.sdstodo-cal-cell:hover { border-color: #262A35; }
.sdstodo-cal-cell.outside { opacity: 0.3; }
.sdstodo-cal-cell.today { border-color: #22C55E; }
.sdstodo-cal-cell.selected { background: rgba(34,197,94,0.14); border-color: #22C55E; }

.sdstodo-cal-daynum {
    font-size: 11px;
    color: #C4C7D0;
    font-family: 'JetBrains Mono', monospace;
}

.sdstodo-cal-dots { display: flex; gap: 3px; flex-wrap: wrap; align-items: center; }
.sdstodo-cal-dot {
    width: 5px; height: 5px;
    border-radius: 50%;
    background: #FFB020;
}
.sdstodo-cal-dot.done { background: #22C55E; }
.sdstodo-cal-more { font-size: 8.5px; color: #5A5F6D; }

.sdstodo-cal-daylist {
    margin-top: 18px;
    border-top: 1px solid #262A35;
    padding-top: 14px;
    display: flex;
    flex-direction: column;
    gap: 8px;
}
.sdstodo-cal-daylist-title {
    font-size: 12px;
    color: #8A8F9C;
    text-transform: capitalize;
    margin-bottom: 4px;
}

@media (max-width: 480px) {
    .sdstodo-input-row { flex-direction: column; }
    .sdstodo-date-input { width: 100%; }
}