/* OLX Clone - Main Stylesheet */

:root {
    --deep-twilight: #03045e;
    --french-blue: #023e8a;
    --bright-teal-blue: #0077b6;
    --blue-green: #0096c7;
    --turquoise-surf: #00b4d8;
    --sky-aqua: #48cae4;
    --frosted-blue: #90e0ef;
    --frosted-blue-2: #ade8f4;
    --light-cyan: #caf0f8;
    --white: #ffffff;
    --dark-gray: #333333;
    --light-gray: #f5f5f5;
    --medium-gray: #cccccc;
}

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

html, body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background-color: var(--light-gray);
    color: var(--dark-gray);
    line-height: 1.6;
}

/* Header & Navigation */
header {
    background-color: var(--deep-twilight);
    padding: 15px 0;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
    position: sticky;
    top: 0;
    z-index: 100;
}

nav {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 20px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    font-size: 24px;
    font-weight: bold;
    color: var(--turquoise-surf);
    text-decoration: none;
    display: flex;
    align-items: center;
    gap: 10px;
}

.nav-menu {
    display: flex;
    gap: 30px;
    align-items: center;
    list-style: none;
}

.nav-menu a {
    color: var(--white);
    text-decoration: none;
    font-size: 14px;
    transition: color 0.3s;
}

.nav-menu a:hover {
    color: var(--turquoise-surf);
}

.auth-buttons {
    display: flex;
    gap: 15px;
    align-items: center;
}

.btn {
    padding: 10px 20px;
    border: none;
    border-radius: 4px;
    cursor: pointer;
    font-size: 14px;
    font-weight: 600;
    transition: all 0.3s;
    text-decoration: none;
    display: inline-block;
}

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

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

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

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

.btn-danger {
    background-color: #e74c3c;
    color: var(--white);
}

.btn-danger:hover {
    background-color: #c0392b;
}

/* Search Bar */
.search-container {
    background: linear-gradient(135deg, var(--french-blue), var(--bright-teal-blue));
    padding: 30px 0;
}

.search-content {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 20px;
}

.search-box {
    display: flex;
    gap: 10px;
    flex-wrap: wrap;
}

.search-box input,
.search-box select {
    padding: 12px 15px;
    border: none;
    border-radius: 4px;
    font-size: 14px;
    flex: 1;
    min-width: 150px;
}

.search-box button {
    padding: 12px 30px;
    background-color: var(--turquoise-surf);
    color: var(--white);
    border: none;
    border-radius: 4px;
    cursor: pointer;
    font-weight: 600;
    transition: background-color 0.3s;
}

.search-box button:hover {
    background-color: var(--sky-aqua);
}

/* Main Content */
main {
    max-width: 1400px;
    margin: 30px auto;
    padding: 0 20px;
}

.container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 20px;
}

/* Categories */
.categories {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(120px, 1fr));
    gap: 15px;
    margin: 30px 0;
}

.category-card {
    background: var(--white);
    padding: 20px;
    border-radius: 8px;
    text-align: center;
    cursor: pointer;
    transition: all 0.3s;
    border: 2px solid transparent;
}

.category-card:hover {
    background-color: var(--light-cyan);
    border-color: var(--turquoise-surf);
    transform: translateY(-4px);
}

.category-icon {
    font-size: 32px;
    margin-bottom: 10px;
}

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

/* Listings Grid */
.listings-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
    gap: 20px;
    margin: 30px 0;
}

.listing-card {
    background: var(--white);
    border-radius: 8px;
    overflow: hidden;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
    transition: all 0.3s;
    position: relative;
}

.listing-card:hover {
    box-shadow: 0 4px 16px rgba(0, 0, 0, 0.15);
    transform: translateY(-4px);
}

.listing-image {
    width: 100%;
    height: 200px;
    background-color: var(--light-gray);
    object-fit: cover;
    position: relative;
}

.listing-image-placeholder {
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 48px;
    color: var(--medium-gray);
}

.wishlist-btn {
    position: absolute;
    top: 10px;
    right: 10px;
    background: rgba(255, 255, 255, 0.9);
    border: none;
    width: 40px;
    height: 40px;
    border-radius: 50%;
    cursor: pointer;
    font-size: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.3s;
}

.wishlist-btn:hover {
    background-color: var(--turquoise-surf);
    color: var(--white);
}

.wishlist-btn.active {
    background-color: var(--turquoise-surf);
    color: var(--white);
}

.listing-details {
    padding: 15px;
}

.listing-title {
    font-size: 16px;
    font-weight: 600;
    margin-bottom: 8px;
    color: var(--dark-gray);
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.listing-price {
    font-size: 20px;
    font-weight: bold;
    color: var(--bright-teal-blue);
    margin-bottom: 8px;
}

.listing-condition {
    display: inline-block;
    background-color: var(--frosted-blue);
    color: var(--dark-gray);
    padding: 4px 10px;
    border-radius: 4px;
    font-size: 12px;
    margin-bottom: 10px;
}

.listing-date {
    font-size: 12px;
    color: var(--medium-gray);
}

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

label {
    display: block;
    margin-bottom: 8px;
    font-weight: 600;
    color: var(--dark-gray);
}

input[type="text"],
input[type="email"],
input[type="number"],
input[type="tel"],
input[type="date"],
select,
textarea {
    width: 100%;
    padding: 12px;
    border: 1px solid var(--medium-gray);
    border-radius: 4px;
    font-size: 14px;
    font-family: inherit;
    transition: border-color 0.3s;
}

input[type="text"]:focus,
input[type="email"]:focus,
input[type="number"]:focus,
input[type="tel"]:focus,
input[type="date"]:focus,
select:focus,
textarea:focus {
    outline: none;
    border-color: var(--turquoise-surf);
    box-shadow: 0 0 0 3px rgba(0, 180, 216, 0.1);
}

textarea {
    resize: vertical;
    min-height: 120px;
}

/* File Upload */
.file-upload-area {
    border: 2px dashed var(--turquoise-surf);
    border-radius: 8px;
    padding: 40px 20px;
    text-align: center;
    cursor: pointer;
    transition: all 0.3s;
    background-color: var(--light-cyan);
}

.file-upload-area:hover {
    background-color: var(--frosted-blue-2);
}

.file-upload-area input[type="file"] {
    display: none;
}

.upload-icon {
    font-size: 48px;
    margin-bottom: 10px;
}

.image-preview {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(100px, 1fr));
    gap: 10px;
    margin-top: 15px;
}

.image-preview-item {
    position: relative;
    border-radius: 4px;
    overflow: hidden;
}

.image-preview-item img {
    width: 100%;
    height: 100px;
    object-fit: cover;
}

.image-preview-item .remove-btn {
    position: absolute;
    top: 5px;
    right: 5px;
    background: rgba(0, 0, 0, 0.7);
    color: white;
    border: none;
    width: 24px;
    height: 24px;
    border-radius: 50%;
    cursor: pointer;
    font-size: 16px;
}

/* Dashboard */
.dashboard-layout {
    display: grid;
    grid-template-columns: 250px 1fr;
    gap: 30px;
}

.dashboard-sidebar {
    background: var(--white);
    padding: 20px;
    border-radius: 8px;
    height: fit-content;
}

.sidebar-menu {
    list-style: none;
}

.sidebar-menu li {
    margin-bottom: 10px;
}

.sidebar-menu a {
    display: block;
    padding: 12px 15px;
    color: var(--dark-gray);
    text-decoration: none;
    border-radius: 4px;
    transition: all 0.3s;
}

.sidebar-menu a:hover,
.sidebar-menu a.active {
    background-color: var(--light-cyan);
    color: var(--bright-teal-blue);
}

/* Pagination */
.pagination {
    display: flex;
    justify-content: center;
    gap: 10px;
    margin: 30px 0;
}

.pagination a,
.pagination span {
    padding: 10px 15px;
    border: 1px solid var(--medium-gray);
    border-radius: 4px;
    text-decoration: none;
    color: var(--dark-gray);
    transition: all 0.3s;
}

.pagination a:hover {
    background-color: var(--turquoise-surf);
    color: var(--white);
    border-color: var(--turquoise-surf);
}

.pagination .active {
    background-color: var(--bright-teal-blue);
    color: var(--white);
    border-color: var(--bright-teal-blue);
}

/* User Profile */
.user-profile {
    background: var(--white);
    padding: 30px;
    border-radius: 8px;
    text-align: center;
    margin-bottom: 30px;
}

.user-avatar {
    width: 100px;
    height: 100px;
    border-radius: 50%;
    margin: 0 auto 20px;
    background: var(--light-cyan);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 48px;
    overflow: hidden;
}

.user-avatar img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.user-name {
    font-size: 24px;
    font-weight: bold;
    color: var(--dark-gray);
    margin-bottom: 8px;
}

.user-email {
    font-size: 14px;
    color: var(--medium-gray);
    margin-bottom: 20px;
}

/* Messages */
.messages-container {
    background: var(--white);
    border-radius: 8px;
    height: 500px;
    display: flex;
    flex-direction: column;
}

.messages-list {
    flex: 1;
    overflow-y: auto;
    padding: 20px;
}

.message {
    margin-bottom: 20px;
    padding: 15px;
    background: var(--light-gray);
    border-radius: 8px;
}

.message.sent {
    background: var(--light-cyan);
    text-align: right;
}

.message-sender {
    font-weight: 600;
    margin-bottom: 5px;
    color: var(--bright-teal-blue);
}

.message-text {
    color: var(--dark-gray);
    word-wrap: break-word;
}

.message-time {
    font-size: 12px;
    color: var(--medium-gray);
    margin-top: 5px;
}

.messages-input {
    padding: 15px;
    border-top: 1px solid var(--medium-gray);
    display: flex;
    gap: 10px;
}

.messages-input textarea {
    flex: 1;
    min-height: 50px;
    margin-bottom: 0;
}

/* Footer */
footer {
    background: var(--deep-twilight);
    color: var(--white);
    padding: 40px 0 20px;
    margin-top: 60px;
}

.footer-content {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 20px;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 40px;
    margin-bottom: 30px;
}

.footer-section h3 {
    color: var(--turquoise-surf);
    margin-bottom: 15px;
    font-size: 16px;
}

.footer-section ul {
    list-style: none;
}

.footer-section ul li {
    margin-bottom: 10px;
}

.footer-section a {
    color: var(--light-gray);
    text-decoration: none;
    transition: color 0.3s;
    font-size: 14px;
}

.footer-section a:hover {
    color: var(--turquoise-surf);
}

.footer-bottom {
    border-top: 1px solid var(--bright-teal-blue);
    padding-top: 20px;
    text-align: center;
    font-size: 14px;
    color: var(--light-gray);
}

.footer-bottom a {
    color: var(--turquoise-surf);
    text-decoration: none;
    transition: color 0.3s;
}

.footer-bottom a:hover {
    color: var(--sky-aqua);
    text-decoration: underline;
}

/* Alerts */
.alert {
    padding: 15px 20px;
    border-radius: 4px;
    margin-bottom: 20px;
}

.alert-success {
    background-color: #d4edda;
    color: #155724;
    border: 1px solid #c3e6cb;
}

.alert-error {
    background-color: #f8d7da;
    color: #721c24;
    border: 1px solid #f5c6cb;
}

.alert-info {
    background-color: #d1ecf1;
    color: #0c5460;
    border: 1px solid #bee5eb;
}

/* Responsive */
@media (max-width: 768px) {
    .categories {
        grid-template-columns: repeat(auto-fit, minmax(80px, 1fr));
    }
    
    .listings-grid {
        grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
    }
    
    .dashboard-layout {
        grid-template-columns: 1fr;
    }
    
    .dashboard-sidebar {
        display: none;
    }
    
    .search-box {
        flex-direction: column;
    }
    
    .search-box input,
    .search-box select,
    .search-box button {
        width: 100%;
    }
    
    .nav-menu {
        gap: 15px;
        font-size: 12px;
    }
    
    .footer-content {
        grid-template-columns: 1fr;
        gap: 20px;
    }
}

@media (max-width: 480px) {
    .logo {
        font-size: 18px;
    }
    
    .listings-grid {
        grid-template-columns: 1fr;
    }
    
    .search-box input,
    .search-box select {
        min-width: auto;
    }
}