/**
 * ===============================================================================
 * BALAM AI - Custom Datepicker Component
 * ===============================================================================
 *
 * Global calendar/date picker styles. Pairs with core/balam-datepicker.js.
 * Trigger visually matches .custom-dropdown-trigger for cross-control
 * consistency. Token-driven so the neumorphic restyle (Phase 3) propagates here
 * automatically. Dark modals/cards inherit via [data-surface="dark"]/.balam-modal.
 *
 * @requires shared-variables.css
 * @requires core/balam-datepicker.js
 * @version 1.0.0
 * ===============================================================================
 */

/* ─── Container ────────────────────────────────────────────────────────────── */

.custom-datepicker {
    position: relative;
}

/* ─── Trigger (mirrors .custom-dropdown-trigger) ───────────────────────────── */

.custom-datepicker-trigger {
    width: 100%;
    min-height: 44px;
    padding: 0.75rem 1rem;
    margin: 0;
    border: 1px solid var(--balam-border, #e5e7eb);
    border-radius: 10px;
    font-family: inherit;
    font-size: 0.875rem;
    line-height: 1.5;
    color: var(--balam-text-primary, #1f2937);
    background: linear-gradient(145deg, #ffffff, #f8f9fb);
    cursor: pointer;
    transition: all 0.2s ease;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 0.5rem;
    text-align: left;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.05);
    appearance: none;
}

.custom-datepicker-trigger:hover {
    border-color: var(--balam-primary, #4361ee);
    box-shadow: 0 2px 8px rgba(var(--balam-primary-rgb, 67, 97, 238), 0.15);
}

.custom-datepicker-trigger:focus,
.custom-datepicker.open .custom-datepicker-trigger {
    outline: none;
    border-color: var(--balam-primary, #4361ee);
    box-shadow: 0 0 0 3px rgba(var(--balam-primary-rgb, 67, 97, 238), 0.15);
}

.custom-datepicker-trigger .placeholder {
    flex: 1;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
    color: var(--balam-text-muted, #9ca3af);
    /* Reset Bootstrap's .placeholder skeleton-loader utility (class-name collision):
       without this the date display renders as a gray "loading" bar. */
    display: inline-block;
    min-height: 0;
    background-color: transparent;
    opacity: 1;
    cursor: inherit;
    vertical-align: baseline;
    animation: none;
}

.custom-datepicker-trigger .placeholder.has-value {
    color: var(--balam-text-primary, #1f2937);
}

.custom-datepicker-icon {
    color: var(--balam-text-secondary, #6b7280);
    font-size: 0.85rem;
}

/* ─── Calendar Dropdown ────────────────────────────────────────────────────── */

.custom-datepicker-dropdown {
    position: absolute;
    top: calc(100% + 6px);
    left: 0;
    z-index: var(--balam-z-dropdown, 1000);
    width: 280px;
    max-width: 90vw;
    padding: 0.75rem;
    background: #ffffff;
    border: 1px solid var(--balam-border, #e5e7eb);
    border-radius: 12px;
    box-shadow: 0 12px 32px rgba(0, 0, 0, 0.14),
                0 4px 12px rgba(var(--balam-primary-rgb, 67, 97, 238), 0.08);
    opacity: 0;
    visibility: hidden;
    transform: translateY(-6px);
    transition: opacity 0.2s ease, transform 0.2s ease, visibility 0.2s ease;
}

.custom-datepicker.open .custom-datepicker-dropdown {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

/* ─── Header (month nav) ───────────────────────────────────────────────────── */

.datepicker-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 0.5rem;
}

.datepicker-month-year {
    font-weight: var(--balam-font-semibold, 600);
    font-size: 0.9rem;
    color: var(--balam-text-primary, #1f2937);
}

.datepicker-nav-btn {
    width: 30px;
    height: 30px;
    border: none;
    border-radius: 8px;
    background: transparent;
    color: var(--balam-text-secondary, #6b7280);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: background 0.15s ease, color 0.15s ease;
}

.datepicker-nav-btn:hover {
    background: rgba(var(--balam-primary-rgb, 67, 97, 238), 0.1);
    color: var(--balam-primary, #4361ee);
}

/* ─── Weekday + Day Grids ──────────────────────────────────────────────────── */

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

.datepicker-weekdays {
    margin-bottom: 4px;
}

.datepicker-weekdays span {
    text-align: center;
    font-size: 0.7rem;
    font-weight: var(--balam-font-semibold, 600);
    color: var(--balam-text-muted, #9ca3af);
    padding: 4px 0;
}

.datepicker-day {
    aspect-ratio: 1;
    border: none;
    background: transparent;
    border-radius: 8px;
    font-size: 0.8rem;
    color: var(--balam-text-primary, #1f2937);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: background 0.15s ease, color 0.15s ease;
}

.datepicker-day.empty {
    cursor: default;
    pointer-events: none;
}

.datepicker-day:hover:not(.empty) {
    background: rgba(var(--balam-primary-rgb, 67, 97, 238), 0.1);
}

.datepicker-day.today {
    font-weight: var(--balam-font-bold, 700);
    color: var(--balam-primary, #4361ee);
}

.datepicker-day.selected {
    background: var(--balam-primary, #4361ee);
    color: #ffffff;
    font-weight: var(--balam-font-semibold, 600);
}

/* ─── Footer ───────────────────────────────────────────────────────────────── */

.datepicker-footer {
    display: flex;
    justify-content: space-between;
    gap: 0.5rem;
    margin-top: 0.6rem;
    padding-top: 0.6rem;
    border-top: 1px solid var(--balam-border-light, #eef2f7);
}

.datepicker-clear-btn,
.datepicker-today-btn {
    flex: 1;
    padding: 0.4rem 0.5rem;
    border: 1px solid var(--balam-border, #e5e7eb);
    border-radius: 8px;
    background: transparent;
    font-size: 0.8rem;
    font-weight: var(--balam-font-medium, 500);
    color: var(--balam-text-secondary, #6b7280);
    cursor: pointer;
    transition: all 0.15s ease;
}

.datepicker-today-btn {
    color: var(--balam-primary, #4361ee);
    border-color: rgba(var(--balam-primary-rgb, 67, 97, 238), 0.3);
}

.datepicker-clear-btn:hover {
    background: var(--balam-bg-secondary, #f0f5ff);
}

.datepicker-today-btn:hover {
    background: rgba(var(--balam-primary-rgb, 67, 97, 238), 0.1);
}

/* ===============================================================================
   Dark variant — applies inside dark modals/cards (and global dark theme)
   =============================================================================== */

[data-theme="dark"] .custom-datepicker-trigger,
[data-surface="dark"] .custom-datepicker-trigger,
.balam-modal .custom-datepicker-trigger {
    background: rgba(255, 255, 255, 0.05);
    border-color: rgba(255, 255, 255, 0.12);
    color: var(--balam-dark-text-primary, #f1f5f9);
    box-shadow: none;
}

[data-theme="dark"] .custom-datepicker-trigger .placeholder.has-value,
[data-surface="dark"] .custom-datepicker-trigger .placeholder.has-value,
.balam-modal .custom-datepicker-trigger .placeholder.has-value {
    color: var(--balam-dark-text-primary, #f1f5f9);
}

[data-theme="dark"] .custom-datepicker-dropdown,
[data-surface="dark"] .custom-datepicker-dropdown,
.balam-modal .custom-datepicker-dropdown {
    background: var(--balam-modal-card, #1a1a24);
    border-color: var(--balam-modal-border, #2d2d3a);
}

[data-theme="dark"] .datepicker-month-year,
[data-surface="dark"] .datepicker-month-year,
.balam-modal .datepicker-month-year,
[data-theme="dark"] .datepicker-day,
[data-surface="dark"] .datepicker-day,
.balam-modal .datepicker-day {
    color: var(--balam-dark-text-primary, #f1f5f9);
}

/* ─── Reduced motion ───────────────────────────────────────────────────────── */

@media (prefers-reduced-motion: reduce) {
    .custom-datepicker-dropdown,
    .datepicker-nav-btn,
    .datepicker-day,
    .datepicker-clear-btn,
    .datepicker-today-btn {
        transition: none;
    }
}