/**
 * Recommendation Feature Styles
 *
 * Styles for recommendation sections across all pages
 *
 * @package Tajheez
 * @version 1.0.0
 */

/* ============================================
   Variables
   ============================================ */

:root {
    /* Recommendation Badge Colors */
    --rec-badge-personalized: #F3E8FF;
    --rec-badge-trending: #FFFBF0;
    --rec-badge-similar: #FDF2F0;
    --rec-badge-favorite: #E8EAF6;

    /* Recommendation Badge Text */
    --rec-text-personalized: #652C8F;
    --rec-text-trending: #D4AF37;
    --rec-text-similar: #D4887A;
    --rec-text-favorite: #7986CB;

    /* Carousel Navigation */
    --carousel-nav-bg: var(--color-white);
    --carousel-nav-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
    --carousel-nav-hover: var(--color-primary-soft);

    /* Animation Durations */
    --duration-fast: 150ms;
    --duration-normal: 250ms;
    --duration-slow: 350ms;

    /* Easing Functions */
    --ease-in: cubic-bezier(0.4, 0, 1, 1);
    --ease-out: cubic-bezier(0, 0, 0.2, 1);
    --ease-in-out: cubic-bezier(0.4, 0, 0.2, 1);
    --ease-spring: cubic-bezier(0.68, -0.55, 0.265, 1.55);
}

/* ============================================
   Section Container
   ============================================ */

.recommendations-section {
    padding: var(--space-16) 0;
    background: var(--color-cream);
    position: relative;
}

.recommendations-section:nth-child(even) {
    background: var(--color-white);
}

/* ============================================
   Section Header
   ============================================ */

.section-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: var(--space-8);
    flex-wrap: wrap;
    gap: var(--space-4);
}

.section-title-group {
    display: flex;
    align-items: baseline;
    gap: var(--space-2) var(--space-3);
    flex-wrap: wrap;
}

.section-icon {
    font-size: var(--text-2xl);
    line-height: 1;
}

.recommendations-section-title {
    font-family: var(--font-display);
    font-size: var(--text-3xl);
    font-weight: 600;
    color: var(--color-midnight);
    margin: 0;
    line-height: var(--leading-tight);
}

.section-subtitle {
    color: var(--color-taupe);
    font-size: var(--text-sm);
    margin: 0;
    line-height: var(--leading-normal);
    width: 100%; /* Forces subtitle to its own line */
}

.view-all-link {
    display: inline-flex;
    align-items: center;
    gap: var(--space-2);
    color: var(--color-primary);
    font-weight: 500;
    text-decoration: none;
    transition: all var(--duration-normal) var(--ease-out);
    font-size: var(--text-base);
}

.view-all-link:hover {
    color: var(--color-primary-dark);
    gap: var(--space-3);
}

.view-all-link svg {
    transition: transform var(--duration-normal) var(--ease-out);
}

.view-all-link:hover svg {
    transform: translateX(2px);
}

/* ============================================
   Recommendation Card
   ============================================ */

.recommendation-card {
    position: relative;
    border-radius: var(--radius-lg);
    overflow: visible;
    transition: transform var(--duration-normal) var(--ease-out),
                box-shadow var(--duration-normal) var(--ease-out);
}

.recommendation-card:hover {
    transform: translateY(-4px);
}

.recommendation-card:active {
    transform: translateY(-2px);
    transition-duration: var(--duration-fast);
}

/* ============================================
   Reason Badge Overlay
   ============================================ */

.recommendation-reason {
    position: absolute;
    top: 12px;
    left: 12px;
    right: 12px;
    z-index: 10;
    display: flex;
    align-items: center;
    gap: var(--space-2);
    padding: var(--space-2) var(--space-3);
    border-radius: var(--radius-full);
    backdrop-filter: blur(8px);
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
    pointer-events: none;
    animation: slideInBadge var(--duration-normal) var(--ease-out);
}

/* Reason Badge Variants */
.recommendation-reason[data-reason-type="category_preference"],
.recommendation-reason[data-reason-type="personalized"] {
    background: rgba(243, 232, 255, 0.95);
    color: var(--rec-text-personalized);
}

.recommendation-reason[data-reason-type="trending"] {
    background: rgba(255, 251, 240, 0.95);
    color: var(--rec-text-trending);
}

.recommendation-reason[data-reason-type="similar"] {
    background: rgba(253, 242, 240, 0.95);
    color: var(--rec-text-similar);
}

.recommendation-reason[data-reason-type="because_liked"] {
    background: rgba(232, 234, 246, 0.95);
    color: var(--rec-text-favorite);
}

.reason-icon {
    font-size: var(--text-sm);
    line-height: 1;
    flex-shrink: 0;
}

.reason-text {
    font-family: var(--font-body);
    font-size: var(--text-xs);
    font-weight: 500;
    letter-spacing: var(--tracking-wide);
    line-height: 1.2;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

/* "Because You Liked" Special Badge */
.reason-source {
    display: flex;
    align-items: center;
    gap: var(--space-2);
}

.reason-source-thumb {
    width: 24px;
    height: 24px;
    border-radius: var(--radius-sm);
    object-fit: cover;
    border: 2px solid var(--color-white);
}

.recommendation-reason[data-reason-type="because_liked"] .reason-text {
    white-space: normal;
    overflow: visible;
}

/* ============================================
   Carousel Component
   ============================================ */

.recommendations-carousel-wrapper {
    position: relative;
    margin-top: var(--space-6);
}

.recommendations-carousel {
    display: grid;
    grid-auto-flow: column;
    grid-auto-columns: calc(25% - var(--space-6) * 3 / 4);
    gap: var(--space-6);
    overflow-x: auto;
    overflow-y: hidden;
    scroll-behavior: smooth;
    scroll-snap-type: x mandatory;
    scrollbar-width: none;
    -webkit-overflow-scrolling: touch;
    padding: var(--space-2) 0 var(--space-6) 0;
}

.recommendations-carousel::-webkit-scrollbar {
    display: none;
}

.recommendations-carousel .recommendation-card {
    scroll-snap-align: start;
}

/* Carousel Navigation Buttons */
.carousel-nav {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    width: 48px;
    height: 48px;
    background: var(--carousel-nav-bg);
    border: 1px solid var(--color-sand);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: all var(--duration-normal) var(--ease-out);
    box-shadow: var(--carousel-nav-shadow);
    z-index: 5;
    color: var(--color-midnight);
}

.carousel-nav:hover {
    background: var(--carousel-nav-hover);
    border-color: var(--color-primary);
    color: var(--color-primary);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
}

.carousel-nav:active {
    transform: translateY(-50%) scale(0.95);
}

.carousel-nav:disabled {
    opacity: 0.3;
    cursor: not-allowed;
    pointer-events: none;
}

.carousel-prev {
    left: -24px;
}

.carousel-next {
    right: -24px;
}

/* Carousel Indicators (Dots) */
.carousel-indicators {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: var(--space-2);
    margin-top: var(--space-6);
}

.carousel-indicator {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: var(--color-dove);
    border: none;
    padding: 0;
    cursor: pointer;
    transition: all 0.3s var(--ease-out);
}

.carousel-indicator.active {
    width: 24px;
    border-radius: 4px;
    background: var(--color-primary);
}

.carousel-indicator:hover:not(.active) {
    background: var(--color-taupe);
}

/* ============================================
   Recently Viewed Section
   ============================================ */

.recently-viewed-scroll-wrapper {
    position: relative;
    margin-top: var(--space-6);
}

.recently-viewed-scroll {
    display: flex;
    gap: var(--space-4);
    overflow-x: auto;
    overflow-y: hidden;
    scroll-behavior: smooth;
    scrollbar-width: none;
    -webkit-overflow-scrolling: touch;
    padding-bottom: var(--space-4);
}

.recently-viewed-scroll::-webkit-scrollbar {
    display: none;
}

.recently-viewed-scroll .recommendation-card {
    flex: 0 0 280px;
    scroll-snap-align: start;
}

.scroll-progress {
    position: relative;
    height: 4px;
    background: var(--color-sand);
    border-radius: 2px;
    margin-top: var(--space-4);
}

.scroll-progress-bar {
    position: absolute;
    left: 0;
    top: 0;
    height: 100%;
    background: var(--color-primary);
    border-radius: 2px;
    transition: width 0.1s ease;
    width: 0%;
}

.clear-history-btn {
    background: none;
    border: 1px solid var(--color-dove);
    color: var(--color-taupe);
    padding: var(--space-2) var(--space-4);
    border-radius: var(--radius-lg);
    font-size: var(--text-sm);
    cursor: pointer;
    transition: all var(--duration-normal) var(--ease-out);
}

.clear-history-btn:hover {
    border-color: var(--color-error);
    color: var(--color-error);
    background: var(--color-error-light);
}

/* ============================================
   Similar Ads Section
   ============================================ */

.similar-ads-section {
    padding: var(--space-16) 0;
    background: var(--color-cream);
}

.match-factors-summary {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-4);
    margin: var(--space-4) 0 var(--space-8) 0;
    padding: var(--space-4);
    background: var(--color-white);
    border-radius: var(--radius-lg);
    border: 1px solid var(--color-sand);
}

.match-factor {
    display: inline-flex;
    align-items: center;
    gap: var(--space-2);
    color: var(--color-taupe);
    font-size: var(--text-sm);
}

.match-factor svg {
    color: var(--color-secondary-dark);
}

.similar-ads-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-6);
    margin-top: var(--space-6);
}

.result-count {
    font-size: var(--text-lg);
    font-weight: 400;
    color: var(--color-taupe);
    margin-inline-start: var(--space-2);
}

/* ============================================
   Dashboard Recommendations
   ============================================ */

.dashboard-recommendations-section {
    margin-bottom: var(--space-16);
}

.recommendations-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-6);
    margin-top: var(--space-6);
}

.load-more-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-2);
    width: 100%;
    max-width: 300px;
    margin: var(--space-8) auto 0;
    padding: var(--space-3) var(--space-6);
    background: var(--color-white);
    border: 2px solid var(--color-primary);
    color: var(--color-primary);
    border-radius: var(--radius-full);
    font-weight: 500;
    cursor: pointer;
    transition: all var(--duration-normal) var(--ease-out);
}

.load-more-btn:hover {
    background: var(--color-primary);
    color: var(--color-white);
}

.load-more-btn:active {
    transform: scale(0.98);
}

.load-more-btn.loading {
    pointer-events: none;
    opacity: 0.6;
}

.load-more-btn.loading svg {
    animation: rotate 1s linear infinite;
}

/* ============================================
   Empty States
   ============================================ */

.empty-state {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    text-align: center;
    padding: var(--space-16) var(--space-8);
    min-height: 400px;
}

.empty-state-compact {
    min-height: 200px;
    padding: var(--space-8) var(--space-4);
}

.empty-state-icon {
    margin-bottom: var(--space-6);
    color: var(--color-dove);
}

.empty-state-icon svg {
    display: block;
}

.empty-state-compact .empty-state-icon svg {
    width: 48px;
    height: 48px;
}

.empty-state-title {
    font-family: var(--font-display);
    font-size: var(--text-2xl);
    font-weight: 600;
    color: var(--color-midnight);
    margin: 0 0 var(--space-3) 0;
}

.empty-state-compact .empty-state-title {
    font-size: var(--text-lg);
}

.empty-state-description {
    font-size: var(--text-base);
    color: var(--color-taupe);
    max-width: 500px;
    margin: 0 0 var(--space-6) 0;
    line-height: var(--leading-relaxed);
}

.empty-state-compact .empty-state-description {
    font-size: var(--text-sm);
}

.empty-state-actions {
    display: flex;
    gap: var(--space-4);
    flex-wrap: wrap;
    justify-content: center;
}

/* ============================================
   Loading States
   ============================================ */

.skeleton-card {
    pointer-events: none;
    user-select: none;
}

.skeleton-badge,
.skeleton-image,
.skeleton-title,
.skeleton-meta,
.skeleton-price,
.skeleton-location {
    background: linear-gradient(
        90deg,
        var(--color-sand) 0%,
        var(--color-dove) 40%,
        var(--color-sand) 80%,
        var(--color-sand) 100%
    );
    background-size: 200% 100%;
    animation: shimmer 1.5s infinite;
    border-radius: var(--radius-sm);
}

.skeleton-badge {
    position: absolute;
    top: 12px;
    left: 12px;
    right: 12px;
    height: 28px;
    z-index: 10;
    border-radius: var(--radius-full);
}

.skeleton-image {
    width: 100%;
    aspect-ratio: 4 / 3;
    border-radius: var(--radius-lg) var(--radius-lg) 0 0;
}

.skeleton-content {
    padding: var(--space-4);
    display: flex;
    flex-direction: column;
    gap: var(--space-3);
}

.skeleton-title {
    height: 20px;
    width: 80%;
}

.skeleton-meta {
    height: 16px;
    width: 60%;
}

.skeleton-price {
    height: 24px;
    width: 40%;
}

.skeleton-location {
    height: 16px;
    width: 50%;
}

/* Loading Overlay */
.loading-overlay {
    display: none;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: var(--space-12) var(--space-4);
    min-height: 200px;
}

.loading-overlay[data-active="true"] {
    display: flex;
}

.loading-spinner {
    margin-bottom: var(--space-4);
    color: var(--color-primary);
}

.spinner-circle {
    animation: spinner 1s linear infinite;
    transform-origin: center;
}

.loading-text {
    color: var(--color-taupe);
    font-size: var(--text-sm);
}

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

.error-state {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    text-align: center;
    padding: var(--space-12) var(--space-8);
    min-height: 300px;
}

.error-icon {
    margin-bottom: var(--space-4);
    color: var(--color-error);
}

.error-title {
    font-family: var(--font-display);
    font-size: var(--text-xl);
    font-weight: 600;
    color: var(--color-midnight);
    margin: 0 0 var(--space-2) 0;
}

.error-description {
    font-size: var(--text-base);
    color: var(--color-taupe);
    max-width: 400px;
    margin: 0 0 var(--space-6) 0;
}

.error-state .btn {
    display: inline-flex;
    align-items: center;
    gap: var(--space-2);
}

/* ============================================
   Animations
   ============================================ */

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

@keyframes shimmer {
    0% {
        background-position: 200% 0;
    }
    100% {
        background-position: -200% 0;
    }
}

@keyframes spinner {
    0% {
        transform: rotate(0deg);
    }
    100% {
        transform: rotate(360deg);
    }
}

@keyframes rotate {
    from { transform: rotate(0deg); }
    to { transform: rotate(360deg); }
}

/* ============================================
   Responsive Design
   ============================================ */

/* Desktop (LG): 3 cards */
@media (min-width: 1024px) and (max-width: 1279px) {
    .recommendations-carousel {
        grid-auto-columns: calc(33.333% - var(--space-5) * 2 / 3);
    }
}

/* Tablet (MD): 2 cards */
@media (min-width: 768px) and (max-width: 1023px) {
    .recommendations-carousel {
        grid-auto-columns: calc(50% - var(--space-4) / 2);
    }

    .similar-ads-grid,
    .recommendations-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: var(--space-4);
    }

    .recommendations-section-title {
        font-size: var(--text-2xl);
    }
}

/* Mobile */
@media (max-width: 767px) {
    .recommendations-section {
        padding: var(--space-12) 0;
    }

    .section-header {
        margin-bottom: var(--space-6);
    }

    .recommendations-carousel-wrapper {
        margin-top: var(--space-4);
    }

    .recommendations-carousel {
        grid-auto-columns: calc(75% - var(--space-3));
        gap: var(--space-3);
        padding-inline-start: var(--space-4);
        padding-inline-end: var(--space-4);
    }

    /* Hide navigation buttons on mobile */
    .carousel-nav {
        display: none;
    }

    /* Hide dots on mobile */
    .carousel-indicators {
        display: none;
    }

    .similar-ads-grid,
    .recommendations-grid {
        grid-template-columns: 1fr;
        gap: var(--space-3);
    }

    .recommendations-section-title {
        font-size: var(--text-2xl);
    }

    .section-subtitle {
        font-size: var(--text-xs);
    }

    /* Larger touch targets */
    .ad-card-actions .action-btn {
        width: 44px;
        height: 44px;
    }

    .view-all-link {
        padding: var(--space-3);
        min-height: 44px;
    }

    .clear-history-btn {
        min-height: 44px;
        padding: var(--space-3) var(--space-5);
    }

    /* Simplified recommendation badge */
    .recommendation-reason {
        padding: var(--space-2);
        font-size: 11px;
    }

    .reason-icon {
        font-size: 14px;
    }
}

@media (max-width: 640px) {
    .recommendations-section {
        padding: var(--space-8) 0;
    }
}

/* ============================================
   Full-Page Recommendations View
   ============================================ */

.recommendations-page .page-hero {
    background: linear-gradient(135deg, var(--color-primary-soft) 0%, var(--color-white) 100%);
    padding: var(--space-12) 0 var(--space-8) 0;
}

.recommendations-page .page-icon {
    font-size: 48px;
    margin-inline-end: var(--space-4);
}

.recommendations-grid-section {
    padding: var(--space-12) 0 var(--space-16) 0;
    background: var(--color-white);
}

.filter-bar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--space-8);
    padding: var(--space-4);
    background: var(--color-cream);
    border-radius: var(--radius-lg);
    flex-wrap: wrap;
    gap: var(--space-4);
}

.filter-bar-left,
.filter-bar-right {
    display: flex;
    align-items: center;
    gap: var(--space-4);
}

.results-count {
    font-size: var(--text-base);
    font-weight: 500;
    color: var(--color-midnight);
}

.sort-dropdown {
    display: flex;
    align-items: center;
    gap: var(--space-2);
}

.sort-label {
    font-size: var(--text-sm);
    color: var(--color-taupe);
    font-weight: 500;
}

.sort-select {
    padding: var(--space-2) var(--space-4);
    border: 1px solid var(--color-sand);
    border-radius: var(--radius-md);
    background: var(--color-white);
    color: var(--color-midnight);
    font-size: var(--text-sm);
    cursor: pointer;
    transition: all var(--duration-normal) var(--ease-out);
}

.sort-select:hover {
    border-color: var(--color-primary);
}

.sort-select:focus {
    outline: none;
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px var(--color-primary-soft);
}

.ads-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: var(--space-6);
    min-height: 400px;
}

.ads-grid .ad-card {
    animation: fadeInUp 0.3s var(--ease-out) forwards;
    opacity: 0;
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.ads-grid .loading-state {
    grid-column: 1 / -1;
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: var(--space-6);
}

.ads-grid .empty-state,
.ads-grid .error-state {
    grid-column: 1 / -1;
}

.ad-card-skeleton {
    background: var(--color-white);
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
}

.ad-card-skeleton .skeleton {
    background: linear-gradient(
        90deg,
        var(--color-sand) 0%,
        var(--color-dove) 40%,
        var(--color-sand) 80%,
        var(--color-sand) 100%
    );
    background-size: 200% 100%;
    animation: shimmer 1.5s infinite;
}

.ad-card-skeleton .skeleton-image {
    width: 100%;
    aspect-ratio: 4 / 3;
    margin-bottom: var(--space-3);
}

.ad-card-skeleton .skeleton-text {
    height: 16px;
    margin: var(--space-2) var(--space-4);
    border-radius: var(--radius-sm);
}

.load-more-container {
    display: flex;
    justify-content: center;
    margin-top: var(--space-12);
}

.btn-load-more {
    min-width: 200px;
}

.related-sections {
    padding: var(--space-12) 0;
    background: var(--color-cream);
}

.ad-card-reason {
    position: absolute;
    top: 8px;
    right: 8px;
    background: rgba(0, 0, 0, 0.7);
    color: white;
    padding: var(--space-1) var(--space-2);
    border-radius: var(--radius-sm);
    font-size: var(--text-xs);
    font-weight: 500;
    z-index: 5;
}

/* Responsive adjustments for full-page view */
@media (max-width: 1279px) {
    .ads-grid,
    .ads-grid .loading-state {
        grid-template-columns: repeat(3, 1fr);
    }
}

@media (max-width: 1023px) {
    .ads-grid,
    .ads-grid .loading-state {
        grid-template-columns: repeat(2, 1fr);
        gap: var(--space-4);
    }

    .filter-bar {
        flex-direction: column;
        align-items: flex-start;
    }

    .filter-bar-left,
    .filter-bar-right {
        width: 100%;
        justify-content: space-between;
    }
}

@media (max-width: 767px) {
    .ads-grid,
    .ads-grid .loading-state {
        grid-template-columns: 1fr;
        gap: var(--space-3);
    }

    .recommendations-page .page-hero {
        padding: var(--space-8) 0 var(--space-6) 0;
    }

    .recommendations-page .page-icon {
        font-size: 32px;
        margin-inline-end: var(--space-2);
    }

    .filter-bar {
        padding: var(--space-3);
    }

    .sort-dropdown {
        width: 100%;
    }

    .sort-select {
        flex: 1;
    }
}

/* ============================================
   RTL Support
   ============================================ */

[dir="rtl"] .carousel-prev {
    left: auto;
    right: -24px;
}

[dir="rtl"] .carousel-next {
    right: auto;
    left: -24px;
}

[dir="rtl"] .carousel-prev svg {
    transform: scaleX(-1);
}

[dir="rtl"] .carousel-next svg {
    transform: scaleX(-1);
}

[dir="rtl"] .view-all-link svg {
    transform: scaleX(-1);
}

[dir="rtl"] .view-all-link:hover svg {
    transform: scaleX(-1) translateX(2px);
}

[dir="rtl"] .reason-text {
    text-align: right;
}

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

/* Focus indicators */
.recommendation-card:focus-within,
.carousel-nav:focus,
.view-all-link:focus {
    outline: 3px solid var(--color-primary);
    outline-offset: 2px;
}

*:focus:not(:focus-visible) {
    outline: none;
}

*:focus-visible {
    outline: 3px solid var(--color-primary);
    outline-offset: 2px;
}

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

/* Reduced motion */
@media (prefers-reduced-motion: reduce) {
    .recommendation-card,
    .recommendation-reason,
    .carousel-nav,
    .skeleton-card [class^="skeleton-"] {
        animation: none;
        transition: none;
    }

    .recommendations-carousel {
        scroll-behavior: auto;
    }

    .recommendation-card:hover {
        transform: none;
        box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
    }
}