/*
 * IMPACCT 2.0 — Date Range Picker Component
 * Reusable single-calendar range selector.
 * All colors use theme CSS variables from theme.css.
 */

/* ── Wrapper ── */
.daterange-wrap {
    position: relative;
    display: inline-block;
}

/* ── Trigger Button ── */
.daterange-trigger {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 8px 14px;
    font-size: 0.85rem;
    font-weight: 500;
    color: var(--text-secondary);
    background: var(--input-bg);
    border: 1px solid var(--input-border);
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: border-color 0.15s, background 0.15s;
    white-space: nowrap;
    min-width: 200px;
}

.daterange-trigger:hover {
    border-color: var(--accent-primary);
    background: var(--bg-hover);
}

.daterange-trigger.daterange-active {
    color: var(--text-primary);
    border-color: var(--accent-primary);
}

.daterange-icon {
    font-size: 1rem;
    flex-shrink: 0;
}

.daterange-text {
    flex: 1;
    text-align: left;
}

.daterange-arrow {
    font-size: 0.65rem;
    color: var(--text-muted);
    flex-shrink: 0;
}

/* ── Backdrop ── */
.daterange-backdrop {
    position: fixed;
    inset: 0;
    z-index: 999;
    background: transparent;
}

/* ── Dropdown Panel ── */
.daterange-dropdown {
    position: absolute;
    top: calc(100% + 6px);
    left: 0;
    z-index: 1000;
    display: flex;
    background: var(--bg-card);
    border: 1px solid var(--border-secondary);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
    overflow: hidden;
    min-width: min(600px, calc(100vw - 32px));
}

/* ── Presets Sidebar ── */
.daterange-presets {
    display: flex;
    flex-direction: column;
    padding: 12px 0;
    border-right: 1px solid var(--border-primary);
    min-width: 140px;
    background: var(--bg-secondary);
}

.daterange-preset-btn {
    display: block;
    width: 100%;
    padding: 8px 16px;
    font-size: 0.8rem;
    font-weight: 500;
    color: var(--text-secondary);
    background: transparent;
    border: none;
    text-align: left;
    cursor: pointer;
    transition: background 0.12s, color 0.12s;
}

.daterange-preset-btn:hover {
    background: var(--bg-hover);
    color: var(--text-primary);
}

.daterange-preset-btn.active {
    color: var(--accent-primary);
    background: rgba(59, 130, 246, 0.08);
    font-weight: 600;
}

/* ── Calendar Body ── */
.daterange-cal-body {
    flex: 1;
    padding: 16px;
    display: flex;
    flex-direction: column;
    gap: 12px;
}

/* ── Navigation (prev / month labels / next) ── */
.daterange-nav {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 8px;
}

.daterange-nav-btn {
    width: 30px;
    height: 30px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.2rem;
    font-weight: 600;
    color: var(--text-secondary);
    background: transparent;
    border: 1px solid var(--border-primary);
    border-radius: var(--radius-sm, 4px);
    cursor: pointer;
    transition: background 0.12s;
    flex-shrink: 0;
}

.daterange-nav-btn:hover {
    background: var(--bg-hover);
    color: var(--text-primary);
}

.daterange-month-title {
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--text-primary);
    flex: 1;
    text-align: center;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 6px;
}

.daterange-month-select,
.daterange-year-select {
    font: inherit;
    font-weight: 600;
    color: var(--text-primary);
    background: transparent;
    border: 1px solid transparent;
    border-radius: var(--radius-sm, 4px);
    padding: 2px 4px;
    cursor: pointer;
}

.daterange-month-select:hover,
.daterange-year-select:hover,
.daterange-month-select:focus,
.daterange-year-select:focus {
    border-color: var(--border-primary);
    background: var(--bg-hover);
    outline: none;
}

/* ── Two Month Grids ── */
.daterange-grids {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
}

.daterange-month-grid {
    display: flex;
    flex-direction: column;
    gap: 4px;
}

/* ── Day Headers (Su Mo Tu ...) ── */
.daterange-day-headers {
    display: grid;
    grid-template-columns: repeat(7, 1fr);
    gap: 0;
    margin-bottom: 4px;
}

.daterange-day-header {
    font-size: 0.7rem;
    font-weight: 600;
    color: var(--text-muted);
    text-align: center;
    padding: 4px 0;
    text-transform: uppercase;
}

/* ── Day Cells ── */
.daterange-days {
    display: grid;
    grid-template-columns: repeat(7, 1fr);
    gap: 1px;
}

.daterange-day {
    width: 32px;
    height: 32px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.8rem;
    font-weight: 500;
    color: var(--text-primary);
    border-radius: 0;
    cursor: pointer;
    transition: background 0.1s;
    position: relative;
    margin: 0 auto;
}

.daterange-day-empty {
    cursor: default;
}

.daterange-day:not(.daterange-day-empty):hover {
    background: var(--bg-hover);
    border-radius: var(--radius-sm, 4px);
}

/* Today dot */
.daterange-day-today {
    font-weight: 700;
    color: var(--accent-primary);
}

.daterange-day-today::after {
    content: '';
    position: absolute;
    bottom: 2px;
    left: 50%;
    transform: translateX(-50%);
    width: 4px;
    height: 4px;
    border-radius: 50%;
    background: var(--accent-primary);
}

/* Selected start/end */
.daterange-day-start,
.daterange-day-end {
    background: var(--accent-primary) !important;
    color: #ffffff !important;
    border-radius: var(--radius-sm, 4px) !important;
    font-weight: 700;
    z-index: 1;
}

/* In-range (between start and end) */
.daterange-day-in-range:not(.daterange-day-start):not(.daterange-day-end) {
    background: rgba(59, 130, 246, 0.12);
    color: var(--text-primary);
}

/* Hover preview range during selection */
.daterange-day-hover-range:not(.daterange-day-start) {
    background: rgba(59, 130, 246, 0.08);
}

/* ── Range Summary (inside calendar) ── */
.daterange-summary {
    display: flex;
    align-items: center;
    gap: 6px;
    padding: 6px 10px;
    background: var(--bg-hover);
    border-radius: var(--radius-sm, 4px);
    font-size: 0.78rem;
    min-height: 28px;
}

.daterange-summary-label {
    font-weight: 600;
    color: var(--text-secondary);
}

.daterange-summary-range {
    font-weight: 600;
    color: var(--accent-primary);
}

.daterange-summary-hint {
    color: var(--text-muted);
    font-style: italic;
}

/* ── Disabled Apply button ── */
.btn-disabled {
    opacity: 0.4;
    cursor: not-allowed;
    pointer-events: none;
}

/* ── Footer (Clear / Apply) ── */
.daterange-footer {
    display: flex;
    justify-content: flex-end;
    gap: 8px;
    padding-top: 12px;
    border-top: 1px solid var(--border-primary);
}

/* ── Responsive: stack on narrow screens ── */
@media (max-width: 680px) {
    .daterange-dropdown {
        flex-direction: column;
        min-width: 320px;
        max-width: calc(100vw - 32px);
    }

    .daterange-presets {
        flex-direction: row;
        flex-wrap: wrap;
        border-right: none;
        border-bottom: 1px solid var(--border-primary);
        min-width: unset;
        padding: 8px;
        gap: 4px;
    }

    .daterange-preset-btn {
        padding: 5px 10px;
        font-size: 0.75rem;
    }

    .daterange-grids {
        grid-template-columns: 1fr;
    }
}