.calendar-picker {
    border: 2px solid #0077b6;
    border-radius: 14px;
    overflow: hidden;
    background: #f0f8ff;
    margin-top: 0.25rem;
}

.cal-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0.6rem 1rem;
    background: #0077b6;
}

.cal-month-label {
    font-weight: 700;
    font-size: 0.95rem;
    color: #fff;
    letter-spacing: 0.03em;
}

.cal-nav {
    background: none;
    border: none;
    color: #fff;
    font-size: 1.6rem;
    line-height: 1;
    cursor: pointer;
    padding: 0 0.3rem;
    transition: opacity 0.2s;
}

.cal-nav:disabled {
    opacity: 0.3;
    cursor: default;
}

.cal-weekdays {
    display: grid;
    grid-template-columns: repeat(7, 1fr);
    padding: 0.4rem 0.5rem 0;
}

.cal-weekdays span {
    text-align: center;
    font-size: 0.72rem;
    font-weight: 600;
    color: #0077b6;
    text-transform: uppercase;
    padding: 0.2rem 0;
}

.cal-days {
    display: grid;
    grid-template-columns: repeat(7, 1fr);
    gap: 3px;
    padding: 0.4rem 0.5rem 0.6rem;
}

.cal-day {
    aspect-ratio: 1;
    border: none;
    border-radius: 50%;
    background: transparent;
    cursor: pointer;
    font-family: 'Montserrat', sans-serif;
    font-size: 0.85rem;
    font-weight: 500;
    color: #023e8a;
    transition: background 0.15s, color 0.15s;
    display: flex;
    align-items: center;
    justify-content: center;
}

.cal-day:hover:not(.disabled):not(.selected) {
    background: #cce7f7;
}

.cal-day.selected {
    background: #0077b6;
    color: #fff;
    font-weight: 700;
}

.cal-day.disabled {
    color: #c0d4e4;
    cursor: default;
}

.cal-day.empty {
    pointer-events: none;
}

.cal-time-section {
    border-top: 1.5px solid #c2dff5;
    padding: 0.75rem 0.75rem 0.9rem;
    background: #fff;
}

.cal-time-label {
    font-size: 0.78rem !important;
    font-weight: 700 !important;
    color: #0077b6 !important;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: 0.5rem !important;
}

.cal-time-slots {
    display: flex;
    flex-wrap: wrap;
    gap: 0.4rem;
}

.cal-slot {
    padding: 0.35rem 0.75rem;
    border-radius: 20px;
    border: 1.5px solid #0077b6;
    background: transparent;
    color: #023e8a;
    font-family: 'Montserrat', sans-serif;
    font-size: 0.82rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.15s;
}

.cal-slot:hover {
    background: #e9f5ff;
}

.cal-slot.selected {
    background: #0077b6;
    color: #fff;
    border-color: #0077b6;
}

.cal-slot.booked {
    background: #f3f4f6;
    border-color: #d1d5db;
    color: #b0b8c1;
    cursor: not-allowed;
    text-decoration: line-through;
    opacity: 0.6;
}