.planner-layout {
    display: grid;
    grid-template-columns: 1.02fr 1.18fr;
    gap: 20px;
}

.column-left,
.column-right {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.inline-form {
    display: flex;
    gap: 10px;
    flex-wrap: wrap;
    align-items: center;
}

.inline-form input,
.inline-form select,
.inline-form textarea {
    flex: 1 1 180px;
}

select,
textarea {
    padding: 12px 14px;
    border: 1px solid #cbd5e1;
    border-radius: 12px;
    outline: none;
    font-size: 15px;
    font-family: inherit;
    background: white;
}

select:focus,
textarea:focus {
    border-color: var(--primary);
    box-shadow: 0 0 0 4px rgba(37, 99, 235, 0.12);
}

.small {
    height: 36px;
    padding: 0 12px;
    font-size: 13px;
}

.subject-list,
.todo-list,
.note-list,
.dday-list,
.calendar-list,
.progress-grid {
    margin-top: 16px;
}

.subject-list,
.todo-list,
.note-list,
.dday-list,
.calendar-list {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.subject-item,
.todo-item,
.note-item,
.dday-item,
.calendar-item,
.progress-item {
    border: 1px solid var(--line);
    border-radius: 16px;
    padding: 16px;
    background: #fbfdff;
}

.subject-item.selected {
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.10);
}

.subject-header,
.todo-header,
.note-header,
.dday-header,
.calendar-header {
    display: flex;
    justify-content: space-between;
    gap: 12px;
    align-items: center;
}

.muted-line {
    color: var(--muted);
    font-size: 13px;
}

.inline-actions {
    display: flex;
    gap: 10px;
    flex-wrap: wrap;
}

.checkbox-inline {
    display: inline-flex;
    flex-direction: row;
    align-items: center;
    gap: 8px;
    font-size: 14px;
    font-weight: 600;
}

.checkbox-inline input {
    width: 18px;
    height: 18px;
    margin: 0;
    flex: 0 0 auto;
}

.todo-item.done {
    background: #f8fafc;
}

.todo-item.done .todo-content {
    text-decoration: line-through;
    color: var(--muted);
}

.progress-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 12px;
}

.progress-item .bar {
    margin-top: 10px;
    height: 12px;
    background: #e5e7eb;
    border-radius: 999px;
    overflow: hidden;
}

.progress-item .fill {
    height: 100%;
    background: linear-gradient(90deg, #8b5cf6, #2563eb);
    border-radius: 999px;
}

.progress-item .row,
.calendar-item .row,
.dday-item .row {
    display: flex;
    justify-content: space-between;
    gap: 12px;
    align-items: center;
}

.tiny-chip {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 6px 10px;
    border-radius: 999px;
    background: #eef2ff;
    color: #3730a3;
    font-size: 12px;
    font-weight: 700;
}

.calendar-subjects {
    margin-top: 12px;
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}

.calendar-subjects .tiny-chip {
    background: #f1f5f9;
    color: #0f172a;
}

.dday-label {
    font-size: 24px;
    font-weight: 800;
}

.empty-box {
    padding: 18px;
    border: 1px dashed #cbd5e1;
    border-radius: 14px;
    background: #f8fafc;
    color: var(--muted);
}

@media (max-width: 960px) {
    .planner-layout {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 640px) {
    .progress-grid {
        grid-template-columns: 1fr;
    }

    .stacked-mobile {
        flex-direction: column;
        align-items: stretch;
    }
}