:root {
    --bp-white: #ffffff;
    --bp-light-gray: #f4f5fa;
    --bp-light-blue: #016699;
    --bp-dark-blue: #0b4778;
    --bp-red: #8b0a03;
    --bp-slate: #767676;
    --bp-violet: #6e5aa6;
    --bp-black: #000000;
}

/* Calendar Wrapper */
.hiv-calendar-wrapper {
    max-width: 1200px;
    margin: 40px auto;
    font-family: inherit;
    color: var(--bp-black);
}

.hiv-calendar-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 20px;
    background: var(--bp-white);
    padding: 20px;
    border-radius: 16px;
    box-shadow: 0 10px 40px rgba(11, 71, 120, 0.08);
    border: 1px solid rgba(1, 102, 153, 0.1);
}

.hiv-calendar-header h2 {
    margin: 0;
    font-size: 2rem;
    color: var(--bp-dark-blue);
}

.hiv-calendar-nav {
    display: inline-block;
    padding: 10px 20px;
    background: var(--bp-light-blue);
    color: var(--bp-white);
    text-decoration: none;
    border-radius: 8px;
    font-weight: bold;
    transition: background 0.3s ease;
}

.hiv-calendar-nav:hover {
    background: var(--bp-dark-blue);
    color: var(--bp-white);
}

/* Calendar Grid */
.hiv-calendar-grid {
    width: 100%;
    table-layout: fixed;
    border-collapse: collapse;
    background: var(--bp-white);
    border-radius: 16px;
    overflow: hidden;
    box-shadow: 0 10px 40px rgba(11, 71, 120, 0.08);
    border: 1px solid rgba(1, 102, 153, 0.1);
}

.hiv-calendar-grid th {
    background: var(--bp-dark-blue);
    color: var(--bp-white);
    padding: 15px;
    text-align: center;
    font-weight: bold;
    text-transform: uppercase;
}

.hiv-calendar-grid td {
    width: 14.28%;
    border: 1px solid var(--bp-light-gray);
    vertical-align: top;
    height: 120px;
    padding: 10px;
    position: relative;
    background: var(--bp-white);
}

.hiv-calendar-grid td.hiv-calendar-empty {
    background: var(--bp-light-gray);
}

.hiv-calendar-day.hiv-calendar-today {
    background: #eef5f9;
}

.hiv-calendar-day .day-number {
    display: block;
    font-weight: bold;
    color: var(--bp-slate);
    margin-bottom: 10px;
    text-align: right;
}

.hiv-calendar-day.hiv-calendar-today .day-number {
    color: var(--bp-red);
    font-size: 1.2rem;
}

/* Events */
.hiv-calendar-events {
    display: flex;
    flex-direction: column;
    gap: 5px;
}

.hiv-calendar-event {
    display: block;
    background: var(--bp-light-blue);
    color: var(--bp-white);
    padding: 5px 8px;
    border-radius: 4px;
    font-size: 0.85rem;
    text-decoration: none;
    line-height: 1.2;
    transition: background 0.2s ease;
    position: relative;
}

.event-title-text {
    display: block;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.hiv-calendar-event:hover,
.hiv-calendar-event:focus {
    background: var(--bp-dark-blue);
    color: var(--bp-white);
    z-index: 10;
    outline: 2px solid var(--bp-dark-blue);
    outline-offset: 2px;
}

/* Custom Tooltip */
.hiv-calendar-event::after {
    content: attr(data-title);
    position: absolute;
    bottom: 100%;
    left: 50%;
    transform: translateX(-50%);
    background-color: var(--bp-dark-blue);
    color: var(--bp-white);
    padding: 8px 12px;
    border-radius: 6px;
    font-size: 0.85rem;
    line-height: 1.4;
    white-space: normal;
    width: max-content;
    max-width: 250px;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.2s ease, visibility 0.2s ease, transform 0.2s ease;
    margin-bottom: 8px;
    pointer-events: none;
    text-align: center;
}

.hiv-calendar-event::before {
    content: '';
    position: absolute;
    bottom: 100%;
    left: 50%;
    transform: translateX(-50%);
    border-width: 6px;
    border-style: solid;
    border-color: var(--bp-dark-blue) transparent transparent transparent;
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.2s ease, visibility 0.2s ease;
    margin-bottom: -4px;
    pointer-events: none;
}

.hiv-calendar-event:hover::after,
.hiv-calendar-event:hover::before,
.hiv-calendar-event:focus::after,
.hiv-calendar-event:focus::before {
    opacity: 1;
    visibility: visible;
}

/* Single Template Styles */
.hiv-calendar-single .bp-back-link {
    display: flex;
    align-items: center;
    gap: 8px;
    color: var(--bp-light-blue);
    text-decoration: none;
    font-weight: 700;
    font-size: 0.9rem;
    transition: color 0.2s;
}

.hiv-calendar-single .bp-back-link:hover {
    color: var(--bp-dark-blue);
}

.hiv-calendar-single .bp-single-top-actions {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 30px;
}

.hiv-calendar-single .bp-single-layout {
    display: flex;
    gap: 40px;
    align-items: flex-start;
}

.hiv-calendar-single .bp-single-article {
    flex: 1;
    min-width: 0;
}

.hiv-calendar-single .bp-single-sidebar {
    width: 320px;
    flex-shrink: 0;
    background: #f8f9fa;
    padding: 25px;
    border-radius: 12px;
    border: 1px solid #e2e8f0;
}

.hiv-calendar-single .bp-single-sidebar .sidebar-icon-label {
    display: inline-flex;
    align-items: center;
    gap: 8px;
}

.hiv-calendar-single .event-meta-info {
    font-size: 1.1rem;
    color: var(--bp-dark-blue);
    margin-bottom: 10px;
    display: flex;
    align-items: center;
    gap: 10px;
}

.hiv-calendar-single .calendar-actions {
    display: flex;
    gap: 10px;
}

@media (max-width: 768px) {
    .hiv-calendar-header {
        flex-direction: column;
        gap: 15px;
        text-align: center;
    }

    .hiv-calendar-grid,
    .hiv-calendar-grid tbody,
    .hiv-calendar-grid tr,
    .hiv-calendar-grid td {
        display: block;
        width: 100%;
    }

    .hiv-calendar-grid thead {
        display: none;
    }

    .hiv-calendar-grid td {
        height: auto;
        min-height: 80px;
        box-sizing: border-box;
    }

    .hiv-calendar-grid td.hiv-calendar-empty {
        display: none;
    }

    .hiv-calendar-day .day-number {
        text-align: left;
        font-size: 1.2rem;
        background: var(--bp-light-gray);
        padding: 5px 10px;
        border-radius: 4px;
        display: inline-block;
    }

    .hiv-calendar-day.hiv-calendar-today .day-number {
        background: var(--bp-red);
        color: var(--bp-white);
    }

    .hiv-calendar-event {
        white-space: normal;
        margin-bottom: 5px;
    }

    .hiv-calendar-single .bp-single-top-actions {
        display: flex;
        flex-direction: column;
        align-items: stretch;
        gap: 15px;
        margin-bottom: 20px;
    }

    .hiv-calendar-single .calendar-actions {
        display: flex;
        flex-direction: column;
        width: 100%;
        gap: 10px;
    }

    .hiv-calendar-single .calendar-actions a {
        display: flex;
        justify-content: center;
        width: 100%;
        box-sizing: border-box;
    }

    .hiv-calendar-single .bp-single-layout {
        flex-direction: column;
        gap: 20px;
    }

    .hiv-calendar-single .bp-single-sidebar {
        width: 100%;
        box-sizing: border-box;
    }

    .hiv-calendar-single .bp-entry-title {
        font-size: 2rem;
        word-break: break-word;
        line-height: 1.2;
    }
}