:root {
    --bxdp-bg: #ffffff;
    --bxdp-text: #1f2937;
    --bxdp-muted: #6b7280;
    --bxdp-border: #d1d5db;
    --bxdp-hover: #eff6ff;
    --bxdp-primary: #1d4ed8;
    --bxdp-primary-2: #2563eb;
    --bxdp-ring: rgba(37, 99, 235, 0.25);
    --bxdp-shadow: 0 14px 34px rgba(2, 6, 23, 0.18);
}

.bxdp-calendar {
    position: absolute;
    z-index: 2147483000;
    min-width: 290px;
    max-width: 100%;
    padding: 12px;
    border-radius: 12px;
    border: 1px solid var(--bxdp-border);
    background: var(--bxdp-bg);
    color: var(--bxdp-text);
    box-shadow: var(--bxdp-shadow);
    font-family: "Segoe UI", "Helvetica Neue", Arial, sans-serif;
    font-size: 14px;
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
    transform: translateY(-8px) scale(0.96);
    transition: opacity 0.16s ease, transform 0.16s ease, visibility 0.16s ease;
}

.bxdp-calendar.is-open {
    opacity: 1;
    visibility: visible;
    pointer-events: auto;
    transform: translateY(0) scale(1);
}

.bxdp-calendar *,
.bxdp-calendar *::before,
.bxdp-calendar *::after {
    box-sizing: border-box;
}

.bxdp-calendar button,
.bxdp-calendar select {
    font: inherit;
}

.bxdp-header {
    display: grid;
    grid-template-columns: auto 1fr auto;
    align-items: center;
    gap: 8px;
    margin-bottom: 10px;
}

.bxdp-nav {
    display: flex;
    gap: 4px;
}

.bxdp-btn {
    width: 30px;
    height: 30px;
    border: 1px solid var(--bxdp-border);
    border-radius: 8px;
    background: #f8fafc;
    color: var(--bxdp-text);
    cursor: pointer;
}

.bxdp-btn:hover {
    background: var(--bxdp-hover);
    border-color: #93c5fd;
}

.bxdp-btn:focus-visible {
    outline: 2px solid var(--bxdp-primary);
    outline-offset: 1px;
}

.bxdp-selects {
    display: flex;
    justify-content: center;
    gap: 6px;
}

.bxdp-select {
    height: 30px;
    padding: 4px 8px;
    border: 1px solid var(--bxdp-border);
    border-radius: 8px;
    background: #fff;
    color: var(--bxdp-text);
}

.bxdp-select:hover {
    border-color: #93c5fd;
}

.bxdp-select:focus-visible {
    outline: 2px solid var(--bxdp-ring);
    border-color: var(--bxdp-primary-2);
}

.bxdp-weekdays-wrap {
    margin-bottom: 6px;
}

.bxdp-weekdays {
    display: grid;
    grid-template-columns: repeat(7, 1fr);
    gap: 2px;
}

/* week numbers column */
.bxdp-calendar.has-week-numbers .bxdp-weekdays {
    grid-template-columns: auto repeat(7, 1fr);
}

.bxdp-calendar.has-week-numbers .bxdp-dates {
    grid-template-columns: auto repeat(7, 1fr);
}

.bxdp-week-number,
.bxdp-weeknumber-header {
    text-align: center;
    color: var(--bxdp-muted);
    font-size: 11px;
    padding: 5px 0;
}

/* rtl support */
.bxdp-calendar[dir="rtl"] {
    direction: rtl;
}

.bxdp-calendar[dir="rtl"] .bxdp-weekdays,
.bxdp-calendar[dir="rtl"] .bxdp-dates {
    direction: rtl;
}

/* time picker controls */
.bxdp-time {
    display: flex;
    gap: 4px;
    justify-content: center;
    margin-bottom: 6px;
}

.bxdp-time select {
    width: 48px;
}

.bxdp-weekday {
    text-align: center;
    color: var(--bxdp-muted);
    font-size: 11px;
    font-weight: 700;
    letter-spacing: 0.04em;
    text-transform: uppercase;
    padding: 5px 0;
}

.bxdp-dates {
    display: grid;
    grid-template-columns: repeat(7, 1fr);
    gap: 3px;
}

.bxdp-day {
    min-height: 34px;
    border: 0;
    border-radius: 8px;
    background: transparent;
    color: var(--bxdp-text);
    cursor: pointer;
    transition: background 0.16s ease, color 0.16s ease;
}

.bxdp-day.bxdp-weekend:not(.is-disabled):not(.is-selected) {
    background: rgba(220, 230, 241, 0.3);
}

.bxdp-day:hover:not(.is-disabled) {
    background: var(--bxdp-hover);
}

.bxdp-day:focus-visible {
    outline: 2px solid var(--bxdp-primary);
    outline-offset: -1px;
}

.bxdp-day.is-other-month {
    color: #9ca3af;
}

.bxdp-day.is-today {
    border: 1px solid #93c5fd;
    font-weight: 700;
}

.bxdp-day.is-selected {
    background: linear-gradient(135deg, var(--bxdp-primary), var(--bxdp-primary-2));
    color: #fff;
    font-weight: 700;
}

.bxdp-day.is-in-range:not(.is-selected) {
    background: #dbeafe;
    color: #1e3a8a;
}

.bxdp-day.is-disabled {
    opacity: 0.35;
    cursor: not-allowed;
}

.bxdp-footer {
    margin-top: 10px;
    padding-top: 10px;
    border-top: 1px solid #e5e7eb;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 6px;
}

.bxdp-footer-btn {
    height: 32px;
    border-radius: 8px;
    border: 1px solid var(--bxdp-border);
    background: #fff;
    color: var(--bxdp-text);
    cursor: pointer;
}

.bxdp-footer-btn:hover {
    border-color: #93c5fd;
    background: var(--bxdp-hover);
}

.bxdp-footer-btn.is-primary {
    border-color: transparent;
    background: linear-gradient(135deg, var(--bxdp-primary), var(--bxdp-primary-2));
    color: #fff;
}

[data-bxdp-input="1"] {
    cursor: pointer;
    caret-color: transparent;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='14' height='14' viewBox='0 0 16 16' fill='%231d4ed8'%3E%3Cpath d='M4 0a1 1 0 1 1 2 0v1h4V0a1 1 0 1 1 2 0v1h1a2 2 0 0 1 2 2v10a3 3 0 0 1-3 3H4a3 3 0 0 1-3-3V3a2 2 0 0 1 2-2h1V0zm9 5H3v8a1 1 0 0 0 1 1h8a1 1 0 0 0 1-1V5z'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 10px center;
    background-size: 14px;
    padding-right: 34px;
}

/* when manual input is allowed we remove the pointer cursor/caret suppression */
[data-bxdp-input="1"][data-allow-manual="1"] {
    cursor: text;
    caret-color: var(--bxdp-text);
    background-image: none;
    /* optional: hide the calendar icon */
    padding-right: 10px;
}

[data-bxdp-input="1"]::selection {
    background: transparent;
}

@media (max-width: 640px) {
    .bxdp-calendar {
        min-width: 100%;
        max-width: 320px;
        padding: 10px;
    }

    .bxdp-header {
        grid-template-columns: 1fr;
        row-gap: 8px;
    }

    .bxdp-selects {
        justify-content: space-between;
        flex-wrap: wrap;
    }

    .bxdp-btn {
        width: 28px;
        height: 28px;
    }

    .bxdp-day {
        min-height: 28px;
        font-size: 13px;
    }

    .bxdp-weekday,
    .bxdp-week-number,
    .bxdp-weeknumber-header {
        font-size: 10px;
    }
}

@media (max-width: 480px) {
    .bxdp-calendar {
        min-width: 240px;
        padding: 8px;
    }

    .bxdp-day {
        min-height: 26px;
        font-size: 12px;
    }

    /* drop week number column if present */
    .bxdp-calendar.has-week-numbers .bxdp-week-number,
    .bxdp-calendar.has-week-numbers .bxdp-weeknumber-header {
        display: none;
    }
}

html[data-theme="dark"] {
    --bxdp-bg: #111827;
    --bxdp-text: #e5e7eb;
    --bxdp-muted: #9ca3af;
    --bxdp-border: #374151;
    --bxdp-hover: #1f2937;
    --bxdp-shadow: 0 18px 40px rgba(0, 0, 0, 0.45);
}

html[data-theme="dark"] .bxdp-btn,
html[data-theme="dark"] .bxdp-select,
html[data-theme="dark"] .bxdp-footer-btn {
    background: #111827;
}

/* small tweaks for modern look */
.bxdp-btn,
.bxdp-select,
.bxdp-footer-btn {
    transition: background 0.2s ease, border-color 0.2s ease;
}

.bxdp-day {
    transition: background 0.16s ease, color 0.16s ease;
}

.bxdp-day:hover:not(.is-disabled) {
    background: var(--bxdp-hover);
    transform: scale(1.02);
}

.bxdp-day.is-selected {
    box-shadow: 0 0 0 2px var(--bxdp-primary);
}

@media (prefers-color-scheme: dark) {
    :root:not([data-theme]) {
        --bxdp-bg: #111827;
        --bxdp-text: #e5e7eb;
        --bxdp-muted: #9ca3af;
        --bxdp-border: #374151;
        --bxdp-hover: #1f2937;
        --bxdp-shadow: 0 18px 40px rgba(0, 0, 0, 0.45);
    }

    :root:not([data-theme]) .bxdp-btn,
    :root:not([data-theme]) .bxdp-select,
    :root:not([data-theme]) .bxdp-footer-btn {
        background: #111827;
    }
}