/* ============================================================
   Project Board — Calendar View
   ============================================================ */

/* --- Calendar Navigation --- */
.cal-nav {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 0.75rem;
    padding: 0.75rem 1rem;
    margin-bottom: 1rem;
    background: #FFF;
    border: 1px solid #DEE2E6;
    border-radius: 6px;
}

.cal-nav-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 36px;
    height: 36px;
    border: 1px solid #DEE2E6;
    border-radius: 6px;
    background: #FFF;
    cursor: pointer;
    color: #495057;
    font-size: 0.9rem;
    transition: background-color 0.15s, border-color 0.15s, color 0.15s;
}

.cal-nav-btn:hover {
    background: var(--color-primary);
    border-color: var(--color-primary);
    color: #FFF;
}

.cal-month-title {
    font-family: var(--font-headings);
    font-weight: 700;
    font-size: 1.15rem;
    color: #212529;
    min-width: 180px;
    text-align: center;
}

.cal-today-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0.4rem 1rem;
    background: var(--color-primary);
    color: #FFF;
    border: none;
    border-radius: 6px;
    font-family: var(--font-buttons);
    font-weight: 600;
    font-size: 0.85rem;
    cursor: pointer;
    transition: background-color 0.15s;
}

.cal-today-btn:hover {
    background: #008DA6;
}

/* --- Legend --- */
.cal-legend {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    margin-left: auto;
    font-family: var(--font-primary);
    font-size: 0.8rem;
    color: #6C757D;
}

.cal-legend-item {
    display: flex;
    align-items: center;
    gap: 0.3rem;
}

.cal-legend-dot {
    width: 10px;
    height: 10px;
    border-radius: 50%;
    flex-shrink: 0;
}

.cal-legend-dot.high {
    background: #CC3333;
}

.cal-legend-dot.medium {
    background: #E65100;
}

.cal-legend-dot.normal {
    background: var(--color-primary);
}

.cal-legend-dot.low {
    background: var(--color-secondary);
}

/* --- Calendar Grid --- */
.cal-grid {
    display: grid;
    grid-template-columns: repeat(7, 1fr);
    gap: 1px;
    background: #DEE2E6;
    border: 1px solid #DEE2E6;
    border-radius: 8px;
    overflow: hidden;
}

/* --- Header Cells --- */
.cal-header-cell {
    background: #F8F9FA;
    padding: 0.5rem;
    text-align: center;
    font-family: var(--font-headings);
    font-weight: 700;
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: #6C757D;
}

/* --- Day Cells --- */
.cal-day {
    background: #FFF;
    min-height: 110px;
    padding: 0.4rem;
    display: flex;
    flex-direction: column;
    transition: background-color 0.15s;
    cursor: default;
}

.cal-day:hover {
    background: #FAFBFC;
}

.cal-day.outside {
    background: #F8F9FA;
    color: #ADB5BD;
}

.cal-day.outside .cal-day-number {
    color: #ADB5BD;
}

.cal-day.today {
    background: rgba(0, 161, 190, 0.06);
}

.cal-day.today .cal-day-number {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 26px;
    height: 26px;
    border-radius: 50%;
    background: var(--color-primary);
    color: #FFF;
}

.cal-day.weekend {
    background: #FCFCFD;
}

/* --- Day Number --- */
.cal-day-number {
    font-family: var(--font-primary);
    font-weight: 700;
    font-size: 0.8rem;
    color: #495057;
    margin-bottom: 0.3rem;
    line-height: 1;
}

/* --- Day Tasks --- */
.cal-day-tasks {
    display: flex;
    flex-direction: column;
    gap: 2px;
    flex: 1;
    overflow: hidden;
}

/* --- Task Item --- */
.cal-task {
    display: flex;
    align-items: center;
    padding: 0.2rem 0.35rem;
    border-radius: 3px;
    font-family: var(--font-primary);
    font-size: 0.7rem;
    color: #333;
    background: #F8F9FA;
    border-left: 3px solid #DEE2E6;
    cursor: pointer;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    transition: background-color 0.15s;
    line-height: 1.3;
}

.cal-task:hover {
    background: #E9ECEF;
}

.cal-task.priority-border-high {
    border-left-color: #CC3333;
}

.cal-task.priority-border-medium {
    border-left-color: #E65100;
}

.cal-task.priority-border-normal {
    border-left-color: var(--color-primary);
}

.cal-task.priority-border-low {
    border-left-color: var(--color-secondary);
}

/* --- More Link --- */
.cal-more {
    font-family: var(--font-primary);
    font-size: 0.7rem;
    font-weight: 600;
    color: var(--color-primary);
    cursor: pointer;
    padding: 0.15rem 0.35rem;
    margin-top: 2px;
}

.cal-more:hover {
    text-decoration: underline;
}

/* --- Unscheduled Section --- */
.cal-unscheduled {
    margin-top: 1rem;
    border: 1px solid #DEE2E6;
    border-radius: 8px;
    background: #FFF;
    overflow: hidden;
}

.cal-unscheduled-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0.65rem 1rem;
    background: #F8F9FA;
    border-bottom: 1px solid #DEE2E6;
    cursor: pointer;
    font-family: var(--font-headings);
    font-weight: 700;
    font-size: 0.85rem;
    color: #495057;
    user-select: none;
}

.cal-unscheduled-header:hover {
    background: #F0F1F3;
}

.cal-unscheduled-header .toggle-icon {
    transition: transform 0.2s;
    font-size: 0.8rem;
    color: #6C757D;
}

.cal-unscheduled-header .toggle-icon.collapsed {
    transform: rotate(-90deg);
}

.cal-unscheduled-body {
    padding: 0.75rem 1rem;
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    max-height: 250px;
    overflow-y: auto;
}

.cal-unscheduled-body.collapsed {
    display: none;
}

/* --- Preview Panel (shared with board) --- */
.project-preview-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.35);
    z-index: 1040;
    animation: calFadeIn 0.2s ease;
}

.project-preview-panel {
    position: fixed;
    top: 0;
    right: 0;
    bottom: 0;
    width: 480px;
    max-width: 100%;
    background: #FFF;
    box-shadow: -4px 0 20px rgba(0, 0, 0, 0.15);
    z-index: 1050;
    display: flex;
    flex-direction: column;
    animation: calSlideInRight 0.25s ease;
}

@keyframes calFadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

@keyframes calSlideInRight {
    from { transform: translateX(100%); }
    to { transform: translateX(0); }
}

.project-preview-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 1.25rem;
    border-bottom: 1px solid #DEE2E6;
    font-family: var(--font-headings);
    font-weight: 700;
    font-size: 1rem;
}

.project-preview-header .close-btn {
    background: none;
    border: none;
    font-size: 1.25rem;
    cursor: pointer;
    color: #6C757D;
    padding: 0.25rem;
    line-height: 1;
}

.project-preview-header .close-btn:hover {
    color: #212529;
}

.project-preview-body {
    flex: 1;
    overflow-y: auto;
    padding: 1.25rem;
}

.project-preview-footer {
    padding: 0.75rem 1.25rem;
    border-top: 1px solid #DEE2E6;
    display: flex;
    justify-content: flex-end;
    gap: 0.5rem;
}

.project-preview-section {
    margin-bottom: 1.25rem;
}

.project-preview-section:last-child {
    margin-bottom: 0;
}

.project-preview-label {
    font-size: 0.75rem;
    font-weight: 700;
    color: #6C757D;
    text-transform: uppercase;
    letter-spacing: 0.04em;
    margin-bottom: 0.3rem;
    font-family: var(--font-primary);
}

.project-preview-value {
    font-size: 0.9rem;
    color: #212529;
    font-family: var(--font-primary);
    line-height: 1.5;
}

.project-preview-description {
    padding: 0.75rem;
    background: #F8F9FA;
    border: 1px solid #E9ECEF;
    border-radius: 6px;
    font-size: 0.85rem;
    color: #495057;
    line-height: 1.6;
    font-family: var(--font-primary);
    max-height: 200px;
    overflow-y: auto;
}

/* --- Responsive --- */
@media (max-width: 991px) {
    .cal-nav {
        gap: 0.5rem;
    }

    .cal-legend {
        margin-left: 0;
        width: 100%;
        justify-content: flex-start;
        flex-wrap: wrap;
    }

    .cal-month-title {
        font-size: 1rem;
        min-width: auto;
    }

    .cal-day {
        min-height: 90px;
        padding: 0.3rem;
    }

    .cal-task {
        font-size: 0.65rem;
    }

    .project-preview-panel {
        width: 100%;
    }
}

@media (max-width: 575px) {
    .cal-nav {
        flex-direction: column;
        align-items: stretch;
        text-align: center;
    }

    .cal-nav-btn {
        width: 32px;
        height: 32px;
    }

    .cal-grid {
        font-size: 0.7rem;
    }

    .cal-header-cell {
        padding: 0.35rem 0.2rem;
        font-size: 0.65rem;
    }

    .cal-day {
        min-height: 70px;
        padding: 0.2rem;
    }

    .cal-day-number {
        font-size: 0.7rem;
    }

    .cal-task {
        font-size: 0.6rem;
        padding: 0.15rem 0.25rem;
    }

    .cal-today .cal-day-number {
        width: 22px;
        height: 22px;
    }

    .cal-unscheduled-body {
        flex-direction: column;
    }
}