body {
    background: #f5f7fb;
    font-family: 'Inter', system-ui, -apple-system, Segoe UI, Roboto, sans-serif;
    color: #2c3e50;
}

/* Title */
.app-title {
    color: #4a6cf7;
    display: flex;
    align-items: center;
    gap: 8px;
}

/* Tabs */
.modern-tabs .nav-link {
    border: none;
    border-radius: 10px 10px 0 0;
    font-weight: 600;
    color: #555;
    transition: all 0.2s;
}

.modern-tabs .nav-link i {
    margin-right: 6px;
}

.modern-tabs .nav-link.active {
    background: #4a6cf7;
    color: #fff !important;
}

/* Inputs */
.modern-input {
    border-radius: 10px;
    border: 1px solid #dee2e6;
    padding: 10px;
    transition: all 0.2s;
}

.modern-input:focus {
    border-color: #4a6cf7;
    box-shadow: 0 0 8px rgba(74, 108, 247, 0.2);
}

/* Buttons */
.modern-btn {
    border-radius: 10px;
    padding: 8px 16px;
    font-weight: 600;
    display: inline-flex;
    align-items: center;
    gap: 6px;
}

.btn-add {
    background: linear-gradient(135deg, #4a6cf7, #6b8afd);
    color: white;
    border: none;
}

.btn-add:hover {
    opacity: 0.92;
}

/* List Items */
.list-group-item {
    border-radius: 12px;
    margin-bottom: 10px;
    background: white;
    box-shadow: 0 2px 6px rgba(0, 0, 0, 0.05);
    transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.list-group-item:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
}

/* Completed task */
.task-completed {
    text-decoration: line-through;
    color: #a0aec0;
}

/* Spillover badge */
.spillover-badge {
    background: #ffcc00;
    border-radius: 20px;
    padding: 2px 8px;
    font-size: 0.7rem;
    font-weight: 600;
    margin-left: 8px;
}

/* Inline edit */
.inline-edit {
    display: flex;
    gap: 8px;
    width: 100%;
}

.inline-edit input {
    flex: 1;
}

/* Animations */
.animated-list li {
    animation: fadeInUp 0.25s ease;
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(8px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Cards */
#importExport .card {
    border-radius: 12px;
    background: #fff;
}

/* Modals */
.modal-content {
    border-radius: 12px;
}

.modal-footer .btn {
    min-width: 110px;
}