/* 
 * Plugin: Việc Cần Làm (Professional Style)
 * Standard Enterprise UI Module
 */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700;800&display=swap');

:root {
    --vcl-primary: #4f46e5;
    --vcl-primary-dark: #4338ca;
    --vcl-success: #10b981;
    --vcl-danger: #ef4444;
    --vcl-bg: #f1f5f9;
    --vcl-card-bg: #ffffff;
    --vcl-text-main: #0f172a;
    --vcl-text-muted: #64748b;
    --vcl-border: rgba(0, 0, 0, 0.06);
    --vcl-shadow: 0 10px 15px -3px rgba(0, 0, 0, 0.03), 0 4px 6px -2px rgba(0, 0, 0, 0.01);
    --vcl-shadow-lg: 0 20px 25px -5px rgba(0, 0, 0, 0.05), 0 10px 10px -5px rgba(0, 0, 0, 0.02);
    --vcl-radius: 20px;
}

/* Base Styles */
.viec-can-lam-refined {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif !important;
    background-color: var(--vcl-bg);
    min-height: 100vh;
}

/* Header & Toolbars */
.refined-header h1 {
    letter-spacing: -0.02em;
}

.calendar-toolbar {
    background: var(--vcl-card-bg);
    border: 1px solid var(--vcl-border);
    padding: 8px;
    border-radius: 16px;
    box-shadow: var(--vcl-shadow);
}

.btn-action-icon {
    width: 38px;
    height: 38px;
    border: none;
    background: transparent;
    color: var(--vcl-text-muted);
    border-radius: 12px;
    transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
}

.btn-action-icon:hover {
    background: var(--vcl-bg);
    color: var(--vcl-primary);
}

.btn-action-text {
    border: none;
    background: transparent;
    color: var(--vcl-primary);
    font-weight: 700;
    font-size: 0.9rem;
    padding: 0 16px;
    border-radius: 12px;
}

.btn-action-text:hover {
    background: var(--vcl-bg);
}

/* Modern Calendar Grid */
.calendar-modern {
    background: var(--vcl-card-bg);
    border-radius: 28px;
    box-shadow: var(--vcl-shadow-lg);
    border: 1px solid var(--vcl-border);
}

.calendar-header-weeks {
    display: grid;
    grid-template-columns: repeat(7, 1fr);
    background: #fafafa;
    border-bottom: 1px solid var(--vcl-border);
}

.week-cell {
    padding: 18px 0;
    text-align: center;
    color: var(--vcl-text-muted);
    font-weight: 800;
    font-size: 0.72rem;
    text-transform: uppercase;
    letter-spacing: 0.1em;
}

.calendar-body-grid {
    display: grid;
    grid-template-columns: repeat(7, 1fr);
}

.calendar-date-cell {
    aspect-ratio: 1/1;
    border: 0.5px solid var(--vcl-border);
    cursor: pointer;
    position: relative;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    transition: all 0.25s ease;
    background: #fff;
}

.calendar-date-cell:hover {
    background: var(--vcl-bg);
    z-index: 2;
    border-color: var(--vcl-primary);
}

.calendar-date-cell.dimmed {
    opacity: 0.25;
    pointer-events: none;
}

.date-number-wrapper {
    width: 36px;
    height: 36px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 12px;
    transition: all 0.3s cubic-bezier(0.34, 1.56, 0.64, 1);
}

.date-number {
    font-weight: 750;
    font-size: 1.1rem;
    color: var(--vcl-text-main);
}

.calendar-date-cell.active .date-number-wrapper {
    background: var(--vcl-text-main);
    transform: scale(1.1);
}

.calendar-date-cell.active .date-number {
    color: #fff;
}

.calendar-date-cell.today .date-number-wrapper {
    background: rgba(79, 70, 229, 0.1);
    color: var(--vcl-primary);
}

.calendar-date-cell.today .date-number {
    color: var(--vcl-primary);
}

.lunar-date {
    position: absolute;
    bottom: 6px;
    right: 8px;
    font-size: 0.65rem;
    font-weight: 600;
    color: var(--vcl-text-muted);
    opacity: 0.6;
}

.lunar-first {
    color: var(--vcl-primary);
    opacity: 1;
    font-weight: 800;
}

.date-tasks-preview {
    position: absolute;
    bottom: 22px;
    display: flex;
    align-items: center;
    gap: 5px;
}

.preview-dot {
    width: 5px;
    height: 5px;
    background: var(--vcl-primary);
    border-radius: 50%;
    animation: bounce-in 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
}

@keyframes bounce-in {
    0% {
        transform: scale(0);
    }

    100% {
        transform: scale(1);
    }
}

.preview-count {
    font-size: 0.7rem;
    font-weight: 900;
    color: var(--vcl-primary);
}

/* Task Management Section */
.form-control-refined {
    width: 100%;
    border: none;
    padding: 20px 24px;
    border-radius: 18px;
    outline: none;
    font-weight: 600;
    color: var(--vcl-text-main);
    background: #fff;
    font-size: 1rem;
}

.input-modern {
    background: #fff;
    border-radius: 20px;
    padding-right: 12px;
    border: 1px solid var(--vcl-border);
    transition: border-color 0.3s;
}

.input-modern:focus-within {
    border-color: var(--vcl-primary);
}

.btn-add-primary {
    width: 48px;
    height: 48px;
    border: none;
    background: var(--vcl-text-main);
    color: #fff;
    border-radius: 14px;
    transition: all 0.2s;
    display: flex;
    align-items: center;
    justify-content: center;
}

.btn-add-primary:hover {
    background: var(--vcl-primary);
    transform: scale(1.05) rotate(90deg);
}

/* Task Cards */
.task-card-refined {
    background: #fff;
    border-radius: 18px;
    border: 1px solid var(--vcl-border);
    transition: all 0.3s;
    box-shadow: var(--vcl-shadow);
    overflow: hidden;
}

.task-card-refined:hover {
    border-color: var(--vcl-primary);
    transform: translateX(4px);
    box-shadow: 0 10px 20px rgba(0, 0, 0, 0.05);
}

.task-card-content {
    padding: 18px;
}

.check-box {
    width: 24px;
    height: 24px;
    border: 2px solid #e2e8f0;
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.2s ease;
    cursor: pointer;
}

.check-box.checked {
    background: var(--vcl-success);
    border-color: var(--vcl-success);
}

.check-box.checked i {
    color: #fff;
    font-size: 0.9rem;
}

.task-title {
    font-size: 1.05rem;
    font-weight: 600;
    transition: all 0.4s;
    color: var(--vcl-text-main);
}

.task-done .task-title {
    text-decoration: line-through;
    color: var(--vcl-text-muted);
    opacity: 0.5;
}

.btn-task-delete {
    border: none;
    background: transparent;
    color: var(--vcl-text-muted);
    opacity: 0;
    transition: all 0.2s;
    font-size: 1.2rem;
}

.task-card-refined:hover .btn-task-delete {
    opacity: 1;
}

.btn-task-delete:hover {
    color: var(--vcl-danger);
}

/* Indicators & Components */
.badge-indigo {
    background: rgba(79, 70, 229, 0.08);
    color: var(--vcl-primary);
    padding: 8px 16px;
    border-radius: 12px;
    font-weight: 800;
    font-size: 0.8rem;
    border: 1px solid rgba(79, 70, 229, 0.1);
}

.btn-save-refined {
    background: var(--vcl-primary);
    color: #fff;
    border: none;
    border-radius: 16px;
    padding: 16px;
    font-weight: 850;
    font-size: 1rem;
    letter-spacing: 0.08em;
    transition: all 0.3s;
    box-shadow: 0 4px 6px -1px rgba(79, 70, 229, 0.2);
}

.btn-save-refined:hover {
    background: var(--vcl-primary-dark);
    transform: translateY(-3px);
    box-shadow: 0 15px 25px -4px rgba(79, 70, 229, 0.3);
}

/* Custom Scrollbar */
.task-scroller::-webkit-scrollbar {
    width: 4px;
}

.task-scroller::-webkit-scrollbar-track {
    background: transparent;
}

.task-scroller::-webkit-scrollbar-thumb {
    background: var(--vcl-border);
    border-radius: 10px;
}

.task-scroller::-webkit-scrollbar-thumb:hover {
    background: var(--vcl-text-muted);
}

/* Responsive adjustments */
@media (max-width: 991px) {
    .calendar-body-grid {
        grid-template-columns: repeat(7, 1fr);
    }

    .calendar-date-cell {
        min-height: 50px;
    }
}

@media (max-width: 576px) {
    .viec-can-lam-refined {
        padding: 15px !important;
    }

    .calendar-modern {
        border-radius: 20px;
    }

    .task-card-refined {
        border-radius: 14px;
    }
}