/**
 * DeWonder Region Trips - Intrepid-Inspired Styles
 *
 * Brand colors:
 * - Primary: #0D4EDB
 * - Secondary: #102E9E
 * - Accent: #E3EE30
 */

/* ==========================================================================
   CSS Custom Properties
   ========================================================================== */

.drt-container {
    --drt-primary: #0D4EDB;
    --drt-secondary: #102E9E;
    --drt-accent: #E3EE30;
    --drt-sand: #f5f3ef;
    --drt-white: #fff;
    --drt-text: rgba(0, 0, 0, 0.86);
    --drt-text-weak: #757575;
    --drt-text-muted: rgba(0, 0, 0, 0.54);
    --drt-border: rgba(0, 0, 0, 0.13);
    --drt-border-light: rgba(0, 0, 0, 0.08);
    --drt-radius: 1rem;
    --drt-radius-sm: 0.5rem;
    --drt-shadow: 0 4px 24px rgba(0, 0, 0, 0.1);
    --drt-transition: 0.2s ease-in-out;

    /* Status colors */
    --drt-status-open: #2e7d32;
    --drt-status-open-bg: #e8f5e9;
    --drt-status-soon: #f57c00;
    --drt-status-soon-bg: #fff3e0;
    --drt-status-completed: #757575;
    --drt-status-completed-bg: #f5f5f5;
}

/* ==========================================================================
   Container & Layout
   ========================================================================== */

.drt-container {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    font-size: 16px;
    line-height: 1.5;
    color: var(--drt-text);
}

@media (min-width: 1024px) {
    .drt-container {
        border-radius: var(--drt-radius);
    }
}

/* ==========================================================================
   Title & Count
   ========================================================================== */

.drt-title {
    font-size: 1.75rem;
    font-weight: 700;
    color: var(--drt-text);
    margin: 0 0 0.5rem 0;
    line-height: 1.2;
}

@media (min-width: 768px) {
    .drt-title {
        font-size: 2rem;
    }
}

.drt-count {
    font-size: 1em;
    color: var(--drt-text-weak);
    margin: 0 0 1.5rem 0;
}

/* ==========================================================================
   Card Container
   ========================================================================== */

.drt-card {
    background: var(--drt-white);
    border-radius: var(--drt-radius);
    box-shadow: var(--drt-shadow);
    overflow: hidden;
}

/* ==========================================================================
   Controls Bar (Filter & Sort)
   ========================================================================== */

.drt-controls {
    display: flex;
    flex-direction: column;
    gap: 1rem;
    padding: 1rem;
    border-bottom: 1px solid var(--drt-border-light);
}

@media (min-width: 768px) {
    .drt-controls {
        flex-direction: row;
        justify-content: space-between;
        align-items: center;
        padding: 1rem 1.5rem;
    }
}

/* Filter Section */
.drt-filter {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

@media (min-width: 768px) {
    .drt-filter {
        flex-direction: row;
        align-items: center;
        gap: 1rem;
    }
}

.drt-filter-btn {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.5rem 1rem;
    background: transparent;
    border: 1px solid var(--drt-border);
    border-radius: var(--drt-radius-sm);
    font-size: 1em;
    font-weight: 500;
    color: var(--drt-text);
    cursor: pointer;
    transition: all var(--drt-transition);
}

.drt-filter-btn:hover {
    border-color: var(--drt-border);
    background: var(--drt-white);
}

.drt-next-months {
    font-size: 1em;
    color: var(--drt-text-weak);
}

.drt-more {
    color: var(--drt-primary);
    font-weight: 500;
}

/* Sort Section */
.drt-sort {
    position: relative;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.drt-sort-icon {
    color: var(--drt-text-weak);
}

.drt-sort-select {
    appearance: none;
    background: transparent;
    border: 1px solid var(--drt-border);
    border-radius: var(--drt-radius-sm);
    padding: 0.5rem 2.5rem 0.5rem 0.75rem;
    font-size: 1em;
    font-weight: 500;
    color: var(--drt-text);
    cursor: pointer;
    min-width: 180px;
    transition: border-color var(--drt-transition);
}

.drt-sort-select:hover,
.drt-sort-select:focus {
    border-color: var(--drt-border);
    outline: none;
}

.drt-sort .drt-chevron-down {
    position: absolute;
    right: 0.75rem;
    pointer-events: none;
    color: var(--drt-text-weak);
}

/* ==========================================================================
   Header Row (Desktop Column Labels)
   ========================================================================== */

.drt-header-row {
    display: none;
    grid-template-columns: 1fr 1fr 120px 120px;
    gap: 1rem;
    padding: 0.75rem 1.5rem;
    background: transparent;
    border-bottom: 1px solid var(--drt-border-light);
}

@media (min-width: 768px) {
    .drt-header-row {
        display: grid;
    }
}

.drt-header-row .drt-col {
    font-size: 0.875em;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--drt-text-weak);
}

.drt-col-price {
    text-align: right;
}

/* ==========================================================================
   Accordion Items
   ========================================================================== */

.drt-accordion {
    list-style: none;
    margin: 0;
    padding: 0;
}

.drt-item {
    border-bottom: 1px solid var(--drt-border-light);
}

.drt-item:last-child {
    border-bottom: none;
}

/* Item Header (Collapsed State) */
.drt-item-header {
    display: block;
    width: 100%;
    padding: 1rem;
    background: var(--drt-white);
    border: none !important;
    border-bottom: 1px solid var(--drt-border-light) !important;
    cursor: pointer;
    text-align: left;
    transition: background-color var(--drt-transition);
}

.drt-item-header:hover {
    background: rgba(13, 78, 219, 0.03);
}

@media (min-width: 768px) {
    .drt-item-header {
        padding: 1rem 1.5rem;
    }
}

.drt-item-header-content {
    display: grid;
    grid-template-columns: 1fr auto;
    gap: 0.5rem 1rem;
    align-items: center;
}

@media (min-width: 768px) {
    .drt-item-header-content {
        grid-template-columns: 1fr 1fr 120px 120px;
        gap: 1rem;
    }
}

/* Date Columns */
.drt-date {
    display: flex;
    flex-direction: row;
    align-items: baseline;
    gap: 0.35rem;
}

.drt-date-day {
    font-size: 1.1em;
    font-weight: 700;
    color: var(--drt-text);
    line-height: 1.3;
}

.drt-date-month {
    font-size: 1.1em;
    color: var(--drt-text-weak);
}

/* Mobile: Hide end date in collapsed state */
.drt-end-date {
    display: none;
}

@media (min-width: 768px) {
    .drt-end-date {
        display: flex;
    }
}

/* Status Badge */
.drt-status {
    order: 3;
    grid-column: 1 / -1;
}

@media (min-width: 768px) {
    .drt-status {
        order: unset;
        grid-column: auto;
    }
}

.drt-status-badge {
    display: inline-block;
    padding: 0.25rem 0.75rem;
    border-radius: 1rem;
    font-size: 0.98em;
    font-weight: 500;
    text-transform: none;
    letter-spacing: 0;
}

.drt-status-open {
    color: var(--drt-status-open);
    background: var(--drt-status-open-bg);
}

.drt-status-soon {
    color: var(--drt-status-soon);
    background: var(--drt-status-soon-bg);
}

.drt-status-completed {
    color: var(--drt-status-completed);
    background: var(--drt-status-completed-bg);
}

/* Price */
.drt-price {
    display: flex;
    align-items: baseline;
    gap: 0.25rem;
    justify-content: flex-end;
}

.drt-price-currency {
    font-size: 1em;
    color: var(--drt-text-weak);
}

.drt-price-value {
    font-size: 1.25em;
    font-weight: 700;
    color: var(--drt-text);
}

.drt-price-na {
    font-size: 0.875rem;
    color: var(--drt-text-muted);
}

/* Chevron */
.drt-chevron {
    position: absolute;
    right: 1rem;
    top: 50%;
    transform: translateY(-50%);
    color: var(--drt-text-weak);
    transition: transform var(--drt-transition);
}

.drt-item-header {
    position: relative;
    padding-right: 3rem;
}

.drt-item.drt-expanded .drt-chevron {
    transform: translateY(-50%) rotate(180deg);
}

/* ==========================================================================
   Item Body (Expanded State)
   ========================================================================== */

.drt-item-body {
    display: none;
    background: transparent;
    border-top: 1px solid var(--drt-border-light);
}

.drt-item.drt-expanded .drt-item-body {
    display: block;
}

.drt-item-body-inner {
    display: grid;
    gap: 1.5rem;
    padding: 1.5rem 1rem;
}

@media (min-width: 768px) {
    .drt-item-body-inner {
        grid-template-columns: 1fr auto;
        gap: 2rem;
        padding: 2rem 1.5rem;
    }
}

/* Schedule Section */
.drt-schedule {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.drt-schedule-label {
    font-size: 1em;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--drt-text-weak);
    margin: 0;
}

.drt-schedule-content {
    display: flex;
    gap: 1.5rem;
    align-items: flex-start;
}

/* Duration Box */
.drt-duration {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    min-width: 60px;
    padding: 0.75rem;
    background: var(--drt-white);
    border-radius: var(--drt-radius-sm);
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.08);
}

.drt-duration-num {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--drt-primary);
    line-height: 1;
}

.drt-duration-unit {
    font-size: 0.75em;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--drt-text-weak);
    margin-top: 0.25rem;
}

/* Timeline */
.drt-timeline {
    list-style: none;
    margin: 0;
    padding: 0;
    display: flex;
    flex-direction: column;
    gap: 1rem;
    position: relative;
}

.drt-timeline::before {
    content: '';
    position: absolute;
    left: 7px;
    top: 24px;
    bottom: 24px;
    width: 2px;
    background: var(--drt-border);
}

.drt-timeline-item {
    display: flex;
    gap: 0.75rem;
    align-items: flex-start;
}

.drt-timeline-icon {
    flex-shrink: 0;
    width: 16px;
    height: 16px;
    margin-top: 2px;
    color: var(--drt-primary);
    z-index: 1;
    background: transparent;
}

.drt-timeline-content {
    display: flex;
    flex-direction: column;
}

.drt-timeline-label {
    font-size: 0.875em;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--drt-text-weak);
}

.drt-timeline-date {
    font-size: 1em;
    font-weight: 500;
    color: var(--drt-text);
}

/* CTA Section */
.drt-cta {
    display: flex;
    flex-direction: column;
    gap: 1rem;
    align-items: flex-start;
}

@media (min-width: 768px) {
    .drt-cta {
        align-items: flex-end;
        text-align: right;
    }
}

.drt-trip-title {
    font-size: 1.25em;
    font-weight: 600;
    color: var(--drt-text);
    margin: 0;
    line-height: 1.3;
}

/* Buttons */
.drt-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0.75rem 1.5rem;
    font-size: 1em;
    font-weight: 600;
    text-decoration: none;
    border-radius: var(--drt-radius-sm);
    transition: all var(--drt-transition);
    cursor: pointer;
    border: none;
}

.drt-btn-primary {
    background: var(--drt-primary) !important;
    color: var(--drt-white) !important;
}

.drt-btn-primary:hover {
    background: var(--drt-secondary) !important;
    color: var(--drt-white) !important;
    text-decoration: none;
}

/* ==========================================================================
   Empty State
   ========================================================================== */

.drt-empty {
    text-align: center;
    padding: 3rem 1.5rem;
    background: var(--drt-white);
    border-radius: var(--drt-radius);
    box-shadow: var(--drt-shadow);
}

.drt-empty p {
    margin: 0;
    font-size: 16px;
    color: var(--drt-text-weak);
}

/* ==========================================================================
   Error State
   ========================================================================== */

.drt-error {
    padding: 1rem 1.5rem;
    background: #ffebee;
    border: 1px solid #ef9a9a;
    border-radius: var(--drt-radius-sm);
    color: #c62828;
    font-size: 0.9375rem;
}

/* ==========================================================================
   Icon Utility
   ========================================================================== */

.drt-icon {
    display: inline-block;
    vertical-align: middle;
    flex-shrink: 0;
}

/* ==========================================================================
   Accessibility
   ========================================================================== */

.drt-item-header:focus {
    outline: 2px solid var(--drt-border);
    outline-offset: -2px;
}

.drt-item-header:focus:not(:focus-visible) {
    outline: none;
}

.drt-item-header:focus-visible {
    outline: 2px solid var(--drt-border);
    outline-offset: -2px;
}

/* Screen reader only */
.drt-sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
}

/* ==========================================================================
   Animation
   ========================================================================== */

@keyframes drt-slide-down {
    from {
        opacity: 0;
        transform: translateY(-10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.drt-item.drt-expanded .drt-item-body {
    animation: drt-slide-down 0.2s ease-out;
}

/* ==========================================================================
   Date Filter Modal
   ========================================================================== */

.drt-modal-overlay {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.5);
    z-index: 99999;
    align-items: center;
    justify-content: center;
    padding: 1rem;
}

.drt-modal-overlay.drt-modal-open {
    display: flex;
}

.drt-modal {
    background: var(--drt-white);
    border-radius: var(--drt-radius);
    max-width: 450px;
    width: 100%;
    max-height: 90vh;
    display: flex;
    flex-direction: column;
    box-shadow: 0 24px 48px 6px rgba(0, 0, 0, 0.18);
    animation: drt-modal-in 0.2s ease-out;
}

@keyframes drt-modal-in {
    from {
        opacity: 0;
        transform: scale(0.95);
    }
    to {
        opacity: 1;
        transform: scale(1);
    }
}

.drt-modal-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    padding: 1.5rem 1rem 0;
    gap: 1rem;
}

.drt-modal-title {
    font-size: 1.25em;
    font-weight: 600;
    margin: 0;
    color: var(--drt-text);
}

.drt-modal-subtitle {
    font-size: 1em;
    color: var(--drt-text-weak);
    margin: 0.25rem 0 0;
}

.drt-modal-close {
    background: none;
    border: none;
    padding: 0.5rem;
    margin: -0.5rem;
    cursor: pointer;
    color: var(--drt-text-weak);
    border-radius: 50%;
    transition: background-color var(--drt-transition);
}

.drt-modal-close:hover {
    background: rgba(0, 0, 0, 0.05);
}

.drt-modal-body {
    flex: 1;
    overflow-y: auto;
    padding: 1.5rem 1rem;
}

.drt-year-section {
    margin-bottom: 1rem;
}

.drt-year-label {
    font-size: 1em;
    font-weight: 700;
    text-align: center;
    margin: 0 0 0.75rem;
    color: var(--drt-text);
}

.drt-months-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 0.5rem;
}

.drt-month-btn {
    display: flex;
    flex-direction: column;
    align-items: center;
    padding: 0.75rem 0.5rem;
    background: var(--drt-white);
    border: 1px solid var(--drt-border);
    border-radius: var(--drt-radius-sm);
    cursor: pointer;
    transition: all var(--drt-transition);
}

.drt-month-btn:hover {
    border-color: var(--drt-text-weak);
}

.drt-month-btn.drt-month-selected {
    background: var(--drt-text);
    border-color: var(--drt-text);
    color: var(--drt-white);
}

.drt-month-btn.drt-month-selected .drt-month-price {
    color: var(--drt-white);
}

.drt-month-btn.drt-month-disabled {
    opacity: 0.4;
    cursor: not-allowed;
}

.drt-month-name {
    font-size: 1em;
    font-weight: 500;
    margin-bottom: 0.25rem;
}

.drt-month-price {
    font-size: 0.8125em;
    color: var(--drt-text-weak);
}

.drt-month-price.drt-lowest-price {
    color: var(--drt-status-open);
}

.drt-modal-footer {
    padding: 1rem;
    border-top: 1px solid var(--drt-border-light);
}

.drt-modal-legend {
    margin-bottom: 1rem;
}

.drt-legend-text {
    font-size: 0.875em;
    color: var(--drt-text-weak);
    margin: 0 0 0.5rem;
}

.drt-legend-item {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.875em;
}

.drt-legend-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: var(--drt-status-open);
}

.drt-btn-block {
    width: 100%;
}

.drt-btn-outline {
    background: transparent;
    border: 1px solid var(--drt-border);
    color: var(--drt-text);
}

.drt-btn-outline:hover {
    background: rgba(0, 0, 0, 0.03);
}

.drt-modal-apply {
    margin-bottom: 0.5rem;
}

/* Filter active indicator */
.drt-filter-btn.drt-filter-active {
    background: var(--drt-primary);
    color: var(--drt-white);
    border-color: var(--drt-primary);
}

.drt-filter-btn.drt-filter-active:hover {
    background: var(--drt-secondary);
    border-color: var(--drt-secondary);
}

/* Hidden trip when filtered */
.drt-item.drt-filtered-out {
    display: none;
}