/**
 * ZoomFlightz - Enhanced Flight Search Engine Styles
 * Modern, clean, responsive UI with rich cards, popovers, dual-month calendar, and autocomplete.
 */

/* Root Search Container */
.flight-search-box-wrapper {
    position: relative;
    background: var(--color-bg-surface);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-lg);
    padding: 24px 28px;
    margin: 0 auto;
    width: 100%;
    z-index: 20;
    transition: var(--transition-smooth);
}

/* Trip Options Bar (Round Trip, One Way, Class Dropdown) */
.trip-options-bar {
    display: flex;
    align-items: center;
    flex-wrap: wrap;
    gap: 20px;
    margin-bottom: 18px;
    font-size: 0.95rem;
    color: var(--color-text-secondary);
}

.trip-type-radio {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    cursor: pointer;
    font-weight: 600;
    user-select: none;
    margin: 0;
}

.trip-type-radio input[type="radio"] {
    appearance: none;
    -webkit-appearance: none;
    width: 18px;
    height: 18px;
    border: 2px solid var(--color-border-strong);
    border-radius: 50%;
    outline: none;
    cursor: pointer;
    display: grid;
    place-content: center;
    transition: var(--transition-base);
    margin: 0;
}

.trip-type-radio input[type="radio"]:checked {
    border-color: var(--color-primary);
}

.trip-type-radio input[type="radio"]::before {
    content: "";
    width: 9px;
    height: 9px;
    border-radius: 50%;
    transform: scale(0);
    transition: 120ms transform ease-in-out;
    background-color: var(--color-primary);
}

.trip-type-radio input[type="radio"]:checked::before {
    transform: scale(1);
}

.trip-options-divider {
    height: 20px;
    width: 1.5px;
    background-color: var(--color-border-default);
}

/* Class Selector Dropdown */
.cabin-class-selector {
    position: relative;
    display: inline-block;
}

.cabin-class-trigger {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    background: transparent;
    border: none;
    font-size: 0.95rem;
    font-weight: 700;
    color: var(--color-text-primary);
    cursor: pointer;
    padding: 4px 8px;
    border-radius: var(--radius-sm);
    transition: background 0.2s ease;
}

.cabin-class-trigger:hover {
    background-color: var(--color-bg-subtle);
}

.cabin-class-trigger svg {
    width: 16px;
    height: 16px;
    transition: transform 0.2s ease;
}

.cabin-class-selector.open .cabin-class-trigger svg {
    transform: rotate(180deg);
}

.cabin-class-dropdown-menu {
    position: absolute;
    top: calc(100% + 8px);
    background: var(--color-bg-surface);
    min-width: 210px;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
    border: 1px solid var(--color-border-subtle);
    padding: 10px 12px;
    z-index: 100;
    display: none;
    animation: popoverFadeIn 0.2s ease forwards;
}

.cabin-class-selector.open .cabin-class-dropdown-menu {
    display: block;
}

.cabin-class-option {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 10px 12px;
    border-radius: var(--radius-sm);
    cursor: pointer;
    font-size: 0.925rem;
    font-weight: 500;
    color: var(--color-text-secondary);
    transition: background 0.15s ease;
    user-select: none;
}

.cabin-class-option:hover {
    background-color: var(--color-bg-subtle);
    color: var(--color-text-primary);
}

.cabin-class-option.active {
    font-weight: 600;
    color: var(--color-primary);
    background-color: var(--color-primary-subtle);
}

/* Main Search Fields Grid */
.search-fields-grid {
    display: grid;
    grid-template-columns: 1.55fr auto 1.55fr 1.1fr 1.1fr 1.15fr auto;
    align-items: center;
    gap: 8px;
    position: relative;
}

@media (max-width: 1200px) {
    .search-fields-grid {
        grid-template-columns: 1.4fr auto 1.4fr 1fr 1fr 1.1fr auto;
        gap: 8px;
    }
}

@media (max-width: 992px) {
    .search-fields-grid {
        grid-template-columns: 1fr 1fr;
        gap: 10px;
    }
    .airport-swap-wrapper {
        display: none !important;
    }
    .search-btn-field {
        grid-column: span 2;
    }
}

@media (max-width: 576px) {
    .search-fields-grid {
        grid-template-columns: 1fr;
    }
    .search-btn-field {
        grid-column: span 1;
    }
}

/* Airport Inputs (From / To) */
.airport-input-box {
    position: relative;
    border: 1px solid var(--color-border-strong);
    border-radius: var(--radius-sm);
    padding: 0 14px;
    background: var(--color-bg-surface);
    display: flex;
    align-items: center;
    height: 58px;
    min-height: 58px;
    transition: var(--transition-base);
    cursor: text;
}

.airport-input-box:focus-within,
.airport-input-box.focused {
    border-color: var(--color-primary);
    box-shadow: 0 0 0 2px rgba(var(--color-primary-rgb), 0.15);
}

.airport-input-box.has-error {
    border-color: #ef4444 !important;
    background-color: #fff8f8 !important;
    box-shadow: 0 0 0 2px rgba(239, 68, 68, 0.25) !important;
}

.airport-input-box.has-error .airport-text-input {
    color: #b91c1c;
}

.airport-field-error-msg {
    position: absolute;
    top: calc(100% + 4px);
    left: 0;
    z-index: 1050;
    display: inline-flex;
    align-items: center;
    gap: 6px;
    background-color: #fef2f2;
    color: #dc2626;
    border: 1px solid #fecaca;
    border-radius: var(--radius-sm);
    padding: 3px 10px;
    font-size: 0.775rem;
    font-weight: 600;
    line-height: 1.3;
    white-space: nowrap;
    box-shadow: 0 4px 10px rgba(220, 38, 38, 0.12);
    animation: errorFadeIn 0.2s ease-in-out;
}

@keyframes errorFadeIn {
    from {
        opacity: 0;
        transform: translateY(-4px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.airport-input-box .airport-field-row {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 8px;
    width: 100%;
}

.airport-text-input {
    border: none;
    outline: none;
    background: transparent;
    font-size: 0.95rem;
    font-weight: 600;
    color: var(--color-text-primary);
    flex: 1;
    min-width: 0;
    padding: 0;
}

.airport-text-input::placeholder {
    color: var(--color-text-muted);
    font-weight: 400;
}

.airport-field-actions {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    flex-shrink: 0;
}

.airport-iata-badge {
    font-size: 0.775rem;
    font-weight: 800;
    background: var(--color-primary-subtle);
    color: var(--color-primary-hover);
    padding: 3px 8px;
    border-radius: var(--radius-sm);
    letter-spacing: 0.5px;
    border: 1px solid var(--color-primary-subtle-border);
    white-space: nowrap;
    line-height: 1.2;
}

.airport-clear-btn {
    background: transparent;
    border: none;
    color: var(--color-text-muted);
    cursor: pointer;
    width: 24px;
    height: 24px;
    display: none;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    transition: all 0.15s ease;
    padding: 0;
    margin-left: 4px;
    flex-shrink: 0;
}

.airport-clear-btn:hover {
    color: var(--color-text-primary);
    background: var(--color-bg-subtle);
}

.airport-clear-btn svg {
    width: 15px;
    height: 15px;
    stroke-width: 2.2;
}

/* Swap Button */
.airport-swap-wrapper {
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 5;
}

.airport-swap-btn {
    width: 38px;
    height: 38px;
    border-radius: 50%;
    background: var(--color-bg-surface);
    border: 1.5px solid var(--color-primary-subtle-border);
    color: var(--color-primary);
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    box-shadow: 0 4px 10px rgba(var(--color-primary-rgb), 0.12);
    transition: var(--transition-smooth);
}

.airport-swap-btn:hover {
    background: var(--color-primary-subtle);
    border-color: var(--color-primary);
    transform: scale(1.08) rotate(180deg);
}

.airport-swap-btn svg {
    width: 18px;
    height: 18px;
}

/* Autocomplete Dropdown List */
.airport-autocomplete-dropdown {
    position: absolute;
    top: calc(100% + 8px);
    left: 0;
    min-width: 360px;
    max-width: 420px;
    background: var(--color-bg-surface);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
    border: 1px solid var(--color-border-default);
    max-height: 360px;
    overflow-y: auto;
    overflow-x: hidden;
    z-index: 150;
    display: none;
    animation: popoverFadeIn 0.2s ease forwards;
}

@media (max-width: 576px) {
    .airport-autocomplete-dropdown {
        min-width: calc(100vw - 48px);
        max-width: calc(100vw - 48px);
        left: -10px;
    }
}

.airport-autocomplete-dropdown.open {
    display: block;
}

.airport-dropdown-section-title {
    padding: 8px 14px;
    font-size: 0.725rem;
    font-weight: 700;
    color: var(--color-text-muted);
    text-transform: uppercase;
    letter-spacing: 0.6px;
    background: var(--color-bg-subtle);
    border-bottom: 1px solid var(--color-border-subtle);
    display: flex;
    align-items: center;
    gap: 6px;
}

.airport-dropdown-section-title svg {
    width: 13px;
    height: 13px;
    color: var(--color-primary);
}

.airport-dropdown-status {
    padding: 16px;
    text-align: center;
    font-size: 0.875rem;
    color: var(--color-text-muted);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 8px;
}

.airport-results-list {
    padding: 4px 0;
}

.airport-item {
    padding: 10px 14px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    cursor: pointer;
    border-bottom: 1px solid var(--color-border-subtle);
    transition: background 0.15s ease;
}

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

.airport-item:hover,
.airport-item.active {
    background-color: var(--color-primary-subtle);
}

.airport-item-main {
    display: flex;
    align-items: center;
    gap: 10px;
    flex: 1;
    min-width: 0; /* Ensures child text truncation works properly */
}

.airport-item-icon {
    width: 34px;
    height: 34px;
    border-radius: var(--radius-sm);
    background: var(--color-bg-subtle);
    color: var(--color-primary);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.airport-item:hover .airport-item-icon {
    background: var(--color-primary-subtle-border);
}

.airport-item-icon svg {
    width: 16px;
    height: 16px;
}

.airport-item-text {
    flex: 1;
    min-width: 0;
    display: flex;
    flex-direction: column;
}

.airport-item-city {
    font-weight: 700;
    font-size: 0.925rem;
    color: var(--color-text-primary);
    line-height: 1.25;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.airport-item-name {
    font-size: 0.775rem;
    color: var(--color-text-muted);
    margin-top: 2px;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.airport-item-badge-wrap {
    display: flex;
    flex-direction: column;
    align-items: flex-end;
    gap: 2px;
    flex-shrink: 0;
}

.airport-item-code {
    font-weight: 800;
    font-size: 0.85rem;
    color: var(--color-primary-hover);
    background: var(--color-primary-subtle);
    padding: 2px 8px;
    border-radius: var(--radius-sm);
    border: 1px solid var(--color-primary-subtle-border);
    letter-spacing: 0.5px;
}

.airport-item-country {
    font-size: 0.675rem;
    font-weight: 700;
    color: var(--color-text-muted);
    text-transform: uppercase;
}

/* Date Cards & Passenger Cards */
.date-selector-card,
.travellers-selector-card {
    position: relative;
    border: 1px solid var(--color-border-strong);
    border-radius: var(--radius-sm);
    padding: 0 12px;
    background: var(--color-bg-surface);
    height: 58px;
    min-height: 58px;
    display: flex;
    align-items: center;
    gap: 10px;
    cursor: pointer;
    user-select: none;
    transition: var(--transition-base);
}

.date-selector-card:hover,
.travellers-selector-card:hover {
    border-color: var(--color-primary-subtle-border);
    background-color: var(--color-bg-body);
}

.date-selector-card.active,
.travellers-selector-card.active {
    border-color: var(--color-primary);
    box-shadow: 0 0 0 2px rgba(var(--color-primary-rgb), 0.15);
}

.date-selector-card.disabled {
    opacity: 0.55;
    background-color: var(--color-bg-subtle);
    cursor: not-allowed;
}

.date-card-day,
.travellers-card-num {
    font-size: 1.45rem;
    font-weight: 800;
    color: var(--color-text-primary);
    line-height: 1;
    min-width: 28px;
    text-align: center;
}

.date-card-divider,
.travellers-card-divider {
    width: 1.5px;
    height: 32px;
    background-color: var(--color-primary);
    border-radius: 1px;
}

.date-card-info,
.travellers-card-info {
    display: flex;
    flex-direction: column;
    justify-content: center;
}

.date-card-month,
.travellers-card-type {
    font-size: 0.925rem;
    font-weight: 700;
    color: var(--color-primary);
    line-height: 1.15;
}

.date-card-sub,
.travellers-card-sub {
    font-size: 0.725rem;
    color: var(--color-text-muted);
    font-weight: 500;
    margin-top: 1px;
    white-space: nowrap;
}

/* Travellers Popover */
.travellers-popover {
    position: absolute;
    top: calc(100% + 8px);
    right: 0;
    background: var(--color-bg-surface);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
    border: 1px solid var(--color-border-default);
    padding: 18px;
    min-width: 300px;
    z-index: 160;
    display: none;
    animation: popoverFadeIn 0.2s ease forwards;
}

.travellers-selector-card.open .travellers-popover {
    display: block;
}

.traveller-row {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 10px 0;
    border-bottom: 1px solid var(--color-border-subtle);
}

.traveller-row:last-of-type {
    border-bottom: none;
}

.traveller-title {
    font-size: 0.95rem;
    font-weight: 700;
    color: var(--color-text-primary);
}

.traveller-desc {
    font-size: 0.75rem;
    color: var(--color-text-muted);
}

.stepper-controls {
    display: inline-flex;
    align-items: center;
    gap: 12px;
}

.stepper-btn {
    width: 32px;
    height: 32px;
    border-radius: var(--radius-sm);
    background: var(--color-primary-subtle);
    border: 1px solid var(--color-primary-subtle-border);
    color: var(--color-primary-hover);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.1rem;
    font-weight: 700;
    cursor: pointer;
    transition: all 0.15s ease;
    user-select: none;
}

.stepper-btn:hover:not(:disabled) {
    background: var(--color-primary);
    color: #ffffff;
    border-color: var(--color-primary);
}

.stepper-btn:disabled {
    opacity: 0.35;
    cursor: not-allowed;
    background: var(--color-bg-subtle);
    border-color: var(--color-border-default);
    color: var(--color-text-muted);
}

.stepper-val {
    font-size: 1rem;
    font-weight: 700;
    color: var(--color-text-primary);
    min-width: 18px;
    text-align: center;
}

.travellers-popover-done-btn {
    width: 100%;
    margin-top: 14px;
    padding: 10px;
    background: var(--color-primary);
    color: #ffffff;
    font-weight: 700;
    font-size: 0.95rem;
    border: none;
    border-radius: var(--radius-sm);
    cursor: pointer;
    transition: background 0.2s ease;
}

.travellers-popover-done-btn:hover {
    background: var(--color-primary-hover);
}

.traveller-info-note {
    font-size: 0.72rem;
    color: var(--color-danger);
    margin-top: 8px;
    display: none;
    line-height: 1.3;
}

/* Search Submit Button */
.search-btn-field {
    display: flex;
    align-items: center;
    justify-content: center;
}

.search-submit-btn {
    width: 58px;
    height: 58px;
    min-width: 58px;
    border-radius: var(--radius-sm);
    background: var(--color-primary);
    border: none;
    color: #ffffff;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    box-shadow: var(--shadow-primary);
    transition: var(--transition-smooth);
}

.search-submit-btn:hover {
    background: var(--color-primary-hover);
    transform: translateY(-1px);
    box-shadow: 0 6px 16px rgba(var(--color-primary-rgb), 0.35);
}

.search-submit-btn svg {
    width: 22px;
    height: 22px;
}

@media (max-width: 992px) {
    .search-submit-btn {
        width: 100%;
        height: 50px;
        border-radius: var(--radius-sm);
        gap: 8px;
        font-weight: 700;
        font-size: 1rem;
    }
}

/* ===================================================
   DUAL-MONTH CALENDAR FRAGMENT STYLES
   =================================================== */
.calendar-popover-container {
    position: absolute;
    top: calc(100% + 8px);
    left: 50%;
    transform: translateX(-50%);
    background: var(--color-bg-surface);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
    border: 1px solid var(--color-border-default);
    z-index: 180;
    display: none;
    overflow: hidden;
    min-width: 620px;
    animation: popoverFadeIn 0.2s ease forwards;
}

.calendar-popover-container.open {
    display: block;
}

@media (max-width: 768px) {
    .calendar-popover-container {
        min-width: 92vw;
        left: 0;
        transform: none;
    }
}

/* Blue Calendar Header */
.calendar-header-bar {
    background: var(--color-primary);
    color: #ffffff;
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 12px 20px;
}

.calendar-nav-btn {
    background: rgba(255, 255, 255, 0.18);
    border: none;
    color: #ffffff;
    width: 32px;
    height: 32px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: background 0.15s ease;
}

.calendar-nav-btn:hover {
    background: rgba(255, 255, 255, 0.35);
}

.calendar-nav-btn svg {
    width: 18px;
    height: 18px;
}

.calendar-header-titles {
    display: flex;
    width: 100%;
    justify-content: space-around;
    font-weight: 700;
    font-size: 1.05rem;
    letter-spacing: 0.3px;
}

.calendar-months-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
    padding: 18px 22px;
    background: var(--color-bg-surface);
}

@media (max-width: 768px) {
    .calendar-months-grid {
        grid-template-columns: 1fr;
        gap: 16px;
    }
}

.month-view-title-mobile {
    font-size: 0.95rem;
    font-weight: 700;
    color: var(--color-text-secondary);
    text-align: center;
    margin-bottom: 8px;
    display: none;
}

@media (max-width: 768px) {
    .month-view-title-mobile {
        display: block;
    }
}

.calendar-weekdays-row {
    display: grid;
    grid-template-columns: repeat(7, 1fr);
    text-align: center;
    font-weight: 700;
    font-size: 0.85rem;
    color: var(--color-text-primary);
    margin-bottom: 8px;
}

.calendar-days-grid {
    display: grid;
    grid-template-columns: repeat(7, 1fr);
    gap: 3px 2px;
    text-align: center;
}

.cal-day-cell {
    height: 36px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--color-text-secondary);
    border-radius: 50%;
    cursor: pointer;
    transition: all 0.15s ease;
    user-select: none;
    position: relative;
}

.cal-day-cell:hover:not(.disabled):not(.empty) {
    background-color: var(--color-primary-subtle);
    color: var(--color-primary-hover);
}

.cal-day-cell.empty {
    cursor: default;
}

.cal-day-cell.disabled {
    color: var(--color-border-strong);
    cursor: not-allowed;
}

.cal-day-cell.today:not(.selected-departure):not(.selected-return) {
    color: var(--color-primary);
    font-weight: 800;
}

.cal-day-cell.selected-departure,
.cal-day-cell.selected-return {
    background-color: var(--color-primary) !important;
    color: #ffffff !important;
    font-weight: 700;
    border-radius: 50%;
    z-index: 2;
}

.cal-day-cell.in-range {
    background-color: var(--color-primary-subtle);
    color: var(--color-text-primary);
    border-radius: 0;
}

.cal-day-cell.range-start {
    border-top-left-radius: 50%;
    border-bottom-left-radius: 50%;
}

.cal-day-cell.range-end {
    border-top-right-radius: 50%;
    border-bottom-right-radius: 50%;
}

/* Quick Presets Bar */
.calendar-presets-bar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 10px 20px;
    background: var(--color-bg-subtle);
    border-top: 1px solid var(--color-border-subtle);
}

.calendar-preset-btn {
    background: var(--color-bg-surface);
    border: 1px solid var(--color-border-strong);
    border-radius: var(--radius-full);
    padding: 4px 12px;
    font-size: 0.78rem;
    font-weight: 600;
    color: var(--color-text-secondary);
    cursor: pointer;
    transition: all 0.15s ease;
}

.calendar-preset-btn:hover {
    border-color: var(--color-primary);
    color: var(--color-primary);
    background: var(--color-primary-subtle);
}

.calendar-close-btn {
    background: transparent;
    border: none;
    color: var(--color-text-muted);
    font-weight: 600;
    font-size: 0.85rem;
    cursor: pointer;
    padding: 4px 8px;
}

.calendar-close-btn:hover {
    color: var(--color-text-primary);
}

@keyframes popoverFadeIn {
    from {
        opacity: 0;
        transform: translateY(-6px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}