/* Skelbiu.lt Clone - Premium CSS Design System */

@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700&display=swap');

:root {
    --primary: #b30000;
    --primary-hover: #8c0000;
    --secondary: #2ecc71;
    --secondary-hover: #27ae60;
    --dark: #2d3748;
    --dark-muted: #4a5568;
    --light: #f7fafc;
    --border: #e2e8f0;
    --card-bg: #ffffff;
    --shadow-sm: 0 1px 3px rgba(0,0,0,0.05);
    --shadow-md: 0 4px 6px -1px rgba(0,0,0,0.1), 0 2px 4px -1px rgba(0,0,0,0.06);
    --shadow-lg: 0 10px 15px -3px rgba(0,0,0,0.1), 0 4px 6px -2px rgba(0,0,0,0.05);
    --radius: 8px;
    --radius-lg: 12px;
    --transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
    background-color: var(--light);
    color: var(--dark);
    line-height: 1.5;
    -webkit-font-smoothing: antialiased;
}

a {
    color: inherit;
    text-decoration: none;
}

/* Base Layout Container */
.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 16px;
}

/* Header & Navigation */
header {
    background-color: var(--card-bg);
    border-bottom: 1px solid var(--border);
    position: sticky;
    top: 0;
    z-index: 100;
    box-shadow: var(--shadow-sm);
    backdrop-filter: blur(10px);
    background-color: rgba(255, 255, 255, 0.95);
}

.header-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 70px;
}

.logo {
    display: flex;
    align-items: center;
    font-size: 24px;
    font-weight: 700;
    color: var(--primary);
}

.logo span {
    color: var(--dark);
}

.header-search {
    flex: 1;
    max-width: 500px;
    margin: 0 24px;
    display: flex;
    gap: 8px;
}

.header-search input {
    width: 100%;
    padding: 10px 16px;
    border: 1px solid var(--border);
    border-radius: var(--radius);
    outline: none;
    font-size: 14px;
    transition: var(--transition);
}

.header-search input:focus {
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(179, 0, 0, 0.15);
}

.header-actions {
    display: flex;
    align-items: center;
    gap: 16px;
}

/* Button UI Components */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 10px 20px;
    border-radius: var(--radius);
    font-weight: 600;
    font-size: 14px;
    cursor: pointer;
    transition: var(--transition);
    border: 1px solid transparent;
}

.btn:active {
    transform: scale(0.97);
}

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

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

.btn-secondary {
    background-color: var(--secondary);
    color: white;
}

.btn-secondary:hover {
    background-color: var(--secondary-hover);
}

.btn-outline {
    border-color: var(--border);
    background-color: transparent;
    color: var(--dark);
}

.btn-outline:hover {
    background-color: var(--light);
    border-color: var(--dark-muted);
}

/* Category Grid Home page */
.category-section {
    padding: 40px 0;
}

.section-title {
    font-size: 22px;
    font-weight: 700;
    margin-bottom: 24px;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.category-grid {
    display: grid;
    grid-template-columns: repeat(5, 1fr);
    gap: 16px;
    margin-bottom: 40px;
}

.category-card {
    background-color: var(--card-bg);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 24px 16px;
    text-align: center;
    transition: var(--transition);
    cursor: pointer;
    box-shadow: var(--shadow-sm);
}

.category-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-md);
    border-color: var(--primary);
}

.category-card i {
    font-size: 28px;
    color: var(--primary);
    margin-bottom: 12px;
}

.category-card h3 {
    font-size: 14px;
    font-weight: 600;
    color: var(--dark);
}

/* Listing Cards styling */
.listing-container {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
    gap: 20px;
}

.listing-card {
    background-color: var(--card-bg);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    overflow: hidden;
    transition: var(--transition);
    display: flex;
    flex-direction: column;
    position: relative;
    box-shadow: var(--shadow-sm);
}

.listing-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
}

.listing-image-container {
    position: relative;
    width: 100%;
    aspect-ratio: 4/3;
    background-color: #edf2f7;
    overflow: hidden;
}

.listing-image-container img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: var(--transition);
}

.listing-card:hover .listing-image-container img {
    transform: scale(1.05);
}

.listing-info {
    padding: 16px;
    display: flex;
    flex-direction: column;
    flex-grow: 1;
}

.listing-title {
    font-size: 14px;
    font-weight: 600;
    margin-bottom: 8px;
    color: var(--dark);
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
    height: 42px;
}

.listing-meta {
    font-size: 12px;
    color: var(--dark-muted);
    margin-top: auto;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.listing-price {
    font-size: 16px;
    font-weight: 700;
    color: var(--primary);
    margin-bottom: 8px;
}

/* Promotion Badge & Layouts */
.promotion-badge {
    position: absolute;
    top: 12px;
    left: 12px;
    padding: 4px 8px;
    font-size: 10px;
    font-weight: 700;
    color: white;
    border-radius: 4px;
    text-transform: uppercase;
    z-index: 10;
    letter-spacing: 0.5px;
}

/* VIP Ad */
.vip-ad {
    border: 2px solid #f1c40f;
    box-shadow: 0 4px 15px rgba(241, 196, 15, 0.15);
}
.vip-ad .promotion-badge {
    background-color: #f1c40f;
    color: #333;
}

/* Highlighted Ad */
.highlight-ad {
    background-color: #fefcf0;
    border-color: #f39c12;
}
.highlight-ad .promotion-badge {
    background-color: #f39c12;
}

/* Framed Ad */
.framed-ad {
    border: 2px solid var(--primary);
    box-shadow: 0 4px 12px rgba(179, 0, 0, 0.1);
}
.framed-ad .promotion-badge {
    background-color: var(--primary);
}

.heart-btn {
    position: absolute;
    top: 12px;
    right: 12px;
    background-color: rgba(255,255,255,0.85);
    border: none;
    border-radius: 50%;
    width: 32px;
    height: 32px;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    z-index: 10;
    color: var(--dark-muted);
    transition: var(--transition);
}

.heart-btn:hover {
    background-color: #ffffff;
    color: var(--primary);
    transform: scale(1.1);
}

.heart-btn.active {
    color: var(--primary);
}

/* Details Page styling */
.ad-details-layout {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: 30px;
    padding: 30px 0;
}

.ad-main-card {
    background-color: var(--card-bg);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 24px;
    box-shadow: var(--shadow-sm);
}

.ad-gallery {
    width: 100%;
    margin-bottom: 24px;
}

.ad-gallery-main {
    width: 100%;
    aspect-ratio: 16/9;
    border-radius: var(--radius-lg);
    overflow: hidden;
    background-color: #edf2f7;
    margin-bottom: 12px;
}

.ad-gallery-main img {
    width: 100%;
    height: 100%;
    object-fit: contain;
}

.ad-gallery-thumbs {
    display: flex;
    gap: 8px;
    overflow-x: auto;
}

.ad-gallery-thumb {
    width: 80px;
    height: 60px;
    border-radius: var(--radius);
    overflow: hidden;
    cursor: pointer;
    border: 2px solid transparent;
    transition: var(--transition);
}

.ad-gallery-thumb.active {
    border-color: var(--primary);
}

.ad-gallery-thumb img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.ad-specs-table {
    width: 100%;
    border-collapse: collapse;
    margin: 24px 0;
}

.ad-specs-table td {
    padding: 12px 16px;
    border-bottom: 1px solid var(--border);
    font-size: 14px;
}

.ad-specs-table tr td:first-child {
    font-weight: 600;
    color: var(--dark-muted);
    width: 40%;
}

.ad-description {
    font-size: 15px;
    line-height: 1.7;
    color: var(--dark-muted);
    white-space: pre-line;
    padding-top: 16px;
}

/* User Profile & Sidebar Info Card */
.ad-sidebar-card {
    background-color: var(--card-bg);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 24px;
    box-shadow: var(--shadow-sm);
    display: flex;
    flex-direction: column;
    gap: 16px;
    position: sticky;
    top: 90px;
}

.seller-profile {
    display: flex;
    align-items: center;
    gap: 16px;
    border-bottom: 1px solid var(--border);
    padding-bottom: 16px;
}

.seller-avatar {
    width: 60px;
    height: 60px;
    border-radius: 50%;
    background-color: var(--primary);
    color: white;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 24px;
    font-weight: 700;
}

.seller-info h4 {
    font-size: 16px;
    font-weight: 700;
}

.seller-info p {
    font-size: 12px;
    color: var(--dark-muted);
}

/* Login/Register responsive layout */
.auth-container {
    max-width: 450px;
    margin: 60px auto;
    background-color: var(--card-bg);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 40px 30px;
    box-shadow: var(--shadow-md);
}

.auth-title {
    font-size: 22px;
    font-weight: 700;
    margin-bottom: 24px;
    text-align: center;
}

.form-group {
    margin-bottom: 20px;
}

.form-group label {
    display: block;
    font-size: 14px;
    font-weight: 600;
    margin-bottom: 8px;
}

.form-control {
    width: 100%;
    padding: 12px 16px;
    border: 1px solid var(--border);
    border-radius: var(--radius);
    outline: none;
    font-size: 14px;
    transition: var(--transition);
}

.form-control:focus {
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(179, 0, 0, 0.15);
}

/* ManoSkelbiu User Dashboard layout */
.dashboard-layout {
    display: grid;
    grid-template-columns: 280px 1fr;
    gap: 30px;
    padding: 40px 0;
}

.dashboard-sidebar {
    background-color: var(--card-bg);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 16px 0;
    box-shadow: var(--shadow-sm);
    height: fit-content;
}

.dashboard-nav-item {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 14px 24px;
    font-weight: 500;
    font-size: 14px;
    color: var(--dark-muted);
    border-left: 4px solid transparent;
    transition: var(--transition);
}

.dashboard-nav-item:hover, .dashboard-nav-item.active {
    color: var(--primary);
    background-color: rgba(179, 0, 0, 0.04);
    border-left-color: var(--primary);
    font-weight: 600;
}

.dashboard-content {
    background-color: var(--card-bg);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 24px;
    box-shadow: var(--shadow-sm);
}

/* Chat interface */
.chat-container {
    display: grid;
    grid-template-columns: 320px 1fr;
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    height: 600px;
    background-color: var(--card-bg);
    overflow: hidden;
}

.chat-threads {
    border-right: 1px solid var(--border);
    overflow-y: auto;
}

.chat-thread-item {
    padding: 16px;
    border-bottom: 1px solid var(--border);
    cursor: pointer;
    transition: var(--transition);
    display: flex;
    gap: 12px;
}

.chat-thread-item:hover, .chat-thread-item.active {
    background-color: rgba(179, 0, 0, 0.03);
}

.chat-thread-meta {
    flex-grow: 1;
}

.chat-thread-meta h5 {
    font-size: 14px;
    font-weight: 600;
    margin-bottom: 4px;
}

.chat-thread-meta p {
    font-size: 12px;
    color: var(--dark-muted);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    max-width: 200px;
}

.chat-messages-area {
    display: flex;
    flex-direction: column;
    height: 100%;
}

.chat-messages-header {
    padding: 16px 24px;
    border-bottom: 1px solid var(--border);
    background-color: var(--light);
}

.chat-messages {
    flex-grow: 1;
    padding: 24px;
    overflow-y: auto;
    display: flex;
    flex-direction: column;
    gap: 16px;
    background-color: #f7fafc;
}

.message-bubble {
    max-width: 70%;
    padding: 12px 16px;
    border-radius: 16px;
    font-size: 14px;
    position: relative;
}

.message-received {
    align-self: flex-start;
    background-color: #ffffff;
    color: var(--dark);
    border-bottom-left-radius: 4px;
    box-shadow: var(--shadow-sm);
}

.message-sent {
    align-self: flex-end;
    background-color: var(--primary);
    color: white;
    border-bottom-right-radius: 4px;
    box-shadow: var(--shadow-sm);
}

.chat-input-bar {
    padding: 16px 24px;
    border-top: 1px solid var(--border);
    display: flex;
    gap: 12px;
}

/* Mobile Responsive Adjustments */
@media (max-width: 1024px) {
    .category-grid {
        grid-template-columns: repeat(4, 1fr);
    }
}

@media (max-width: 768px) {
    .header-inner {
        height: auto;
        padding: 12px 0;
        flex-direction: column;
        gap: 12px;
    }
    .header-search {
        margin: 0;
        width: 100%;
    }
    .category-grid {
        grid-template-columns: repeat(3, 1fr);
    }
    .ad-details-layout, .dashboard-layout {
        grid-template-columns: 1fr;
    }
    .ad-sidebar-card {
        position: static;
    }
    .chat-container {
        grid-template-columns: 1fr;
        height: 500px;
    }
    .chat-threads {
        display: none; /* In mobile view, toggle list and conversation */
    }
    .chat-threads.active {
        display: block;
        width: 100%;
    }
}

@media (max-width: 480px) {
    .category-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    .header-actions {
        width: 100%;
        justify-content: space-between;
    }
    .listing-container {
        grid-template-columns: 1fr;
    }
}