/* /style.css */
/* --- ฉบับเต็ม (Full Version) --- */
/* (อัปเดต: เพิ่ม Pagination + Mailbox + Category Browser) */

/* --- 1. Core, Reset, and THEME DEFINITIONS --- */
:root {
    /* (Theme: Light - โนอ่อน) */
    --color-bg: #f8f9fa;            /* พื้นหลังหลัก */
    --color-bg-alt: #ffffff;        /* พื้นหลังการ์ด, header */
    --color-border: #dee2e6;        /* เส้นขอบ */
    --color-border-input: #ced4da;  /* เส้นขอบ Input */
    --color-border-hover: #007bff;  /* เส้นขอบ Input (Focus) */
    --color-text: #343a40;          /* ตัวหนังสือหลัก */
    --color-text-alt: #6c757d;      /* ตัวหนังสือรอง (เทา) */
    --color-text-header: #212529;   /* ตัวหนังสือ (เข้ม) */
    --color-primary: #007bff;       /* สีหลัก (น้ำเงิน) */
    --color-primary-hover: #0069d9;
    --color-secondary: #6c757d;     /* สีรอง (เทา) */
    --color-secondary-hover: #5a6268;
    --color-danger: #dc3545;        /* สีแดง (ราคา) */
    --color-success: #28a745;       /* สีเขียว (ราคาขั้นต่ำ) */

    /* (*** เพิ่มใหม่: สีสำหรับปุ่ม ***) */
    --color-info: #17a2b8;
    --color-info-hover: #138496;
    --color-warning: #ffc107;
    --color-warning-hover: #e0a800;
    --color-purple: #6f42c1;
    --color-purple-hover: #5a32a3;

    --color-text-on-primary: #ffffff; /* ตัวหนังสือบนสีหลัก */
    --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.04);
    --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.08);
    --border-radius: 8px;
    --font-body: 'Sarabun', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
}

:root .theme-dark {
    /* (Theme: Dark - โทนเข้ม) */
    --color-bg: #1a202c;
    --color-bg-alt: #2d3748;
    --color-border: #4a5568;
    --color-border-input: #4a5568;
    --color-border-hover: #4299e1;
    --color-text: #e2e8f0;
    --color-text-alt: #a0aec0;
    --color-text-header: #ffffff;
    --color-primary: #4299e1;
    --color-primary-hover: #2b6cb0;
    --color-danger: #e53e3e;
    --color-success: #48bb78;

    /* (*** เพิ่มใหม่: สีสำหรับปุ่ม (Dark) ***) */
    --color-info: #17a2b8;
    --color-warning: #ffc107;
    --color-purple: #8a63d2;
}

*, *::before, *::after { box-sizing: border-box; }

body {
    font-family: var(--font-body);
    margin: 0;
    background-color: var(--color-bg);
    color: var(--color-text);
    line-height: 1.6;
    font-size: 16px;
    -webkit-font-smoothing: antialiased;
}

.container {
    width: 100%;
    max-width: 1320px;
    margin: 0 auto;
    padding: 0 1.5rem;
}

a {
    color: var(--color-primary);
    text-decoration: none;
    transition: color 0.2s;
}
a:hover {
    color: var(--color-primary-hover);
    text-decoration: underline;
}

h1, h2, h3, h4, h5, h6 {
    margin: 0 0 1rem 0;
    font-weight: 700;
    color: var(--color-text-header);
}
h1 { font-size: 2rem; }
h2 { font-size: 1.75rem; }
h3 { font-size: 1.25rem; }

img { max-width: 100%; height: auto; }
hr { border: 0; border-top: 1px solid var(--color-border); margin: 1.5rem 0; }
table {
    width: 100%;
    border-collapse: collapse;
}

/* --- 2. Header & Footer --- */
.site-header {
    background-color: var(--color-bg-alt);
    border-bottom: 1px solid var(--color-border);
    padding: 1rem 0;
    box-shadow: var(--shadow-sm);
}
.header-main {
    display: flex;
    justify-content: space-between;
    align-items: center;
}
.header-logo img {
    max-height: 50px;
}
.header-logo span {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--color-text-header);
}
.header-nav {
    display: flex;
    gap: 1.5rem;
}
.header-nav a {
    font-size: 1rem;
    font-weight: 600;
    color: var(--color-text-alt);
    text-decoration: none;
}
.header-nav a:hover, .header-nav a.active {
    color: var(--color-primary);
}
.header-user {
    display: flex;
    gap: 0.75rem;
}
.btn-notification {
    position: relative;
    display: inline-block;
    color: var(--color-text-alt);
    background: transparent;
    border: 0;
    padding: 0.6rem 0.5rem;
    cursor: pointer;
}
.btn-notification:hover {
    color: var(--color-primary);
}
.btn-notification i {
    font-size: 1.5rem;
    vertical-align: middle;
}
.btn-notification span {
    position: absolute;
    top: 5px;
    right: 0;
    background-color: var(--color-danger);
    color: white;
    font-size: 0.7rem;
    font-weight: 700;
    border-radius: 50%;
    width: 18px;
    height: 18px;
    display: flex;
    justify-content: center;
    align-items: center;
    line-height: 1;
}


.site-footer {
    background-color: var(--color-bg-alt);
    border-top: 1px solid var(--color-border);
    padding: 3rem 0;
    margin-top: 2rem;
    color: var(--color-text-alt);
}
.footer-content {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr;
    gap: 2rem;
    padding-bottom: 2rem;
}
.footer-about h3 {
    margin-top: 0;
    color: var(--color-text-header);
}
.footer-links h4 {
    color: var(--color-text-header);
}
.footer-links ul {
    list-style: none;
    padding: 0;
    margin: 0;
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}
.footer-links a {
    color: var(--color-text-alt);
    text-decoration: none;
}
.footer-links a:hover {
    color: var(--color-primary);
}
.footer-bottom {
    border-top: 1px solid var(--color-border);
    padding-top: 1.5rem;
    text-align: center;
    font-size: 0.9rem;
}

.site-main {
    padding: 2rem 0;
}

/* --- 3. Buttons & Forms --- */
.btn {
    display: inline-block;
    padding: 0.6rem 1.2rem;
    font-size: 0.9rem;
    font-weight: 600;
    border-radius: var(--border-radius);
    cursor: pointer;
    text-align: center;
    text-decoration: none;
    transition: all 0.2s;
    border: 1px solid transparent;
    line-height: 1.5;
}
.btn i {
    margin-right: 0.5rem;
    vertical-align: middle;
}
.btn-primary {
    color: var(--color-text-on-primary);
    background-color: var(--color-primary);
    border-color: var(--color-primary);
}
.btn-primary:hover {
    background-color: var(--color-primary-hover);
    border-color: var(--color-primary-hover);
    color: var(--color-text-on-primary);
    text-decoration: none;
}
.btn-secondary {
    color: var(--color-text-on-primary);
    background-color: var(--color-secondary);
    border-color: var(--color-secondary);
}
.btn-secondary:hover {
    background-color: var(--color-secondary-hover);
    border-color: var(--color-secondary-hover);
    color: var(--color-text-on-primary);
    text-decoration: none;
}
.btn-danger {
    color: #fff;
    background-color: var(--color-danger);
    border-color: var(--color-danger);
}
.btn-danger:hover {
    color: #fff;
    background-color: #c82333;
    border-color: #bd2130;
    text-decoration: none;
}
.btn-danger-outline {
    color: var(--color-danger);
    background-color: transparent;
    border-color: var(--color-danger);
}
.btn-danger-outline:hover {
    background-color: var(--color-danger);
    color: var(--color-text-on-primary);
    text-decoration: none;
}
.btn-secondary-outline {
    color: var(--color-secondary);
    background-color: transparent;
    border-color: var(--color-secondary);
}
.btn-secondary-outline:hover {
    background-color: var(--color-secondary);
    color: var(--color-text-on-primary);
    text-decoration: none;
}
.btn-sm {
    padding: 0.25rem 0.5rem;
    font-size: 0.8rem;
}
/* (*** แก้ไข: CSS สำหรับปุ่ม Success (จาก my_auctions) ***) */
.btn-success {
    color: #fff;
    background-color: var(--color-success);
    border-color: var(--color-success);
}
.btn-success:hover {
    color: #fff;
    background-color: #218838;
    border-color: #1e7e34;
    text-decoration: none;
}
/* (*** แก้ไข: CSS สำหรับปุ่ม Warning (จาก my_auctions) ***) */
.btn-warning {
    color: #212529;
    background-color: var(--color-warning);
    border-color: var(--color-warning);
}
.btn-warning:hover {
    color: #212529;
    background-color: var(--color-warning-hover);
    border-color: var(--color-warning-hover);
    text-decoration: none;
}

/* (*** เพิ่มใหม่: สีฟ้า ***) */
.btn-info {
    color: #fff;
    background-color: var(--color-info);
    border-color: var(--color-info);
}
.btn-info:hover {
    color: #fff;
    background-color: var(--color-info-hover);
    border-color: var(--color-info-hover);
    text-decoration: none;
}

/* (*** เพิ่มใหม่: สีม่วง ***) */
.btn-purple {
    color: #fff;
    background-color: var(--color-purple);
    border-color: var(--color-purple);
}
.btn-purple:hover {
    color: #fff;
    background-color: var(--color-purple-hover);
    border-color: var(--color-purple-hover);
    text-decoration: none;
}


.form-container {
    max-width: 600px;
    margin: 0 auto;
    background-color: var(--color-bg-alt);
    padding: 2.5rem;
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-md);
}
.form-container h1 {
    text-align: center;
    margin-bottom: 2rem;
}
.form-group {
    margin-bottom: 1.5rem;
}
.form-group label {
    display: block;
    font-weight: 600;
    margin-bottom: 0.5rem;
}
.form-group input[type="text"],
.form-group input[type="email"],
.form-group input[type="password"],
.form-group input[type="number"],
.form-group input[type="datetime-local"],
.form-group textarea,
.form-group select {
    width: 100%;
    padding: 0.75rem 1rem;
    font-size: 1rem;
    border: 1px solid var(--color-border-input);
    border-radius: var(--border-radius);
    background-color: var(--color-bg-alt);
    color: var(--color-text);
    font-family: var(--font-body);
    transition: border-color 0.2s, box-shadow 0.2s;
}
.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
    outline: none;
    border-color: var(--color-border-hover);
    box-shadow: 0 0 0 3px rgba(0,123,255, 0.2);
}
.form-group-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1.5rem;
}
.form-file-input {
    font-size: 1rem;
    /* (*** เพิ่ม: CSS สำหรับ Input File ***) */
    padding: 0.6rem 1rem !important;
    background-color: var(--color-bg);
}
textarea {
    resize: vertical;
    min-height: 100px;
}
.form-submit-btn {
    width: 100%;
    padding: 0.8rem 1.5rem;
    font-size: 1.1rem;
}

.form-fieldset {
    border: 1px solid var(--color-border);
    padding: 1.5rem;
    border-radius: var(--border-radius);
    margin-bottom: 2rem;
}
.form-fieldset legend {
    font-size: 1.1rem;
    font-weight: 600;
    padding: 0 0.5rem;
    color: var(--color-text-header);
}

.error-message {
    background-color: #fff3f3;
    color: #c53030;
    border: 1px solid #f5c6cb;
    padding: 1rem;
    border-radius: var(--border-radius);
    margin-bottom: 1.5rem;
    font-weight: 500;
}
.success-message {
    background-color: #f0fff4;
    color: #2f855a;
    border: 1px solid #c6f6d5;
    padding: 1rem;
    border-radius: var(--border-radius);
    margin-bottom: 1.5rem;
    font-weight: 500;
}

/* --- 4. Homepage --- */
.homepage-banners-container {
    margin-bottom: 2rem;
}
.banner-item-center {
    display: block;
    width: 100%;
}
.banner-item-center img {
    width: 100%;
    height: auto;
    max-height: 400px;
    object-fit: cover;
    border-radius: var(--border-radius);
}

.homepage-layout {
    display: grid;
    grid-template-columns: 240px 1fr;
    gap: 2rem;
}
.homepage-sidebar-left h4 {
    border-bottom: 2px solid var(--color-primary);
    padding-bottom: 0.5rem;
    margin-bottom: 1rem;
}
.sidebar-banners-container {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}
.sidebar-banner-item img {
    width: 100%;
    height: auto;
    border-radius: var(--border-radius);
    border: 1px solid var(--color-border);
}

.auction-tabs {
    display: flex;
    gap: 0.5rem;
    border-bottom: 2px solid var(--color-border);
    margin-bottom: 1.5rem;
}
.auction-tabs .tab-link {
    padding: 0.75rem 1.25rem;
    font-weight: 600;
    color: var(--color-text-alt);
    text-decoration: none;
    border-bottom: 3px solid transparent;
    transform: translateY(2px);
}
.auction-tabs .tab-link:hover {
    color: var(--color-text-header);
}
.auction-tabs .tab-link.active {
    color: var(--color-primary);
    border-bottom-color: var(--color-primary);
}
.auction-tabs .tab-link i {
    margin-right: 0.5rem;
}

.tab-content {
    display: none;
}
.tab-content.active {
    display: block;
}

/* (*** ใหม่: CSS สำหรับ Category Browser ***) */
.category-browser {
    width: 100%;
    margin-bottom: 1rem;
    padding: 1rem;
    background: var(--color-bg-alt); /* (ใช้ bg-alt จะได้เข้ากับ Theme Dark) */
    border-radius: 8px;
    border: 1px solid var(--color-border);
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}
.category-group {
    /* (จัดกลุ่ม แนวนอน) */
    display: flex;
    align-items: flex-start;
    gap: 1rem;
}
.category-group h4 {
    margin: 0;
    font-size: 0.95rem;
    color: var(--color-text-header);
    width: 150px; /* (กำหนดความกว้างของหัวข้อ) */
    flex-shrink: 0;
    padding-top: 5px;
}
.sub-category-list {
    display: flex;
    flex-wrap: wrap;
    gap: 8px 12px;
    flex-grow: 1;
}
.sub-category-list a {
    text-decoration: none;
    font-size: 0.9rem;
    padding: 4px 10px;
    border-radius: 4px;
    background: var(--color-bg);
    border: 1px solid var(--color-border);
    color: var(--color-text-alt);
    transition: all 0.2s;
}
.sub-category-list a:hover {
    background-color: var(--color-bg); /* (ใช้ bg ธรรมดา) */
    color: var(--color-primary);
    border-color: var(--color-primary);
}
.sub-category-list a.active {
    /* (สไตล์ของลิงก์ที่ถูกเลือก) */
    background: var(--color-primary);
    color: var(--color-text-on-primary);
    border-color: var(--color-primary);
    font-weight: 500;
}
.sub-category-list a i {
    vertical-align: middle;
    font-size: 1.1rem;
    margin-right: 4px;
}


/* --- 5. Auction Grid --- */
.auction-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
    gap: 1.5rem;
}
.auction-card {
    background-color: var(--color-bg-alt);
    border: 1px solid var(--color-border);
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-sm);
    overflow: hidden;
    text-decoration: none;
    transition: all 0.2s;
}
.auction-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-md);
    text-decoration: none;
}
.auction-card-image {
    width: 100%;
    aspect-ratio: 1 / 1;
    overflow: hidden;
}
.auction-card-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}
.auction-card-content {
    padding: 1rem;
}
.auction-card-title {
    font-size: 1rem;
    font-weight: 600;
    color: var(--color-text-header);
    margin-bottom: 0.5rem;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}
.auction-card-price {
    font-size: 1.2rem;
    font-weight: 700;
    color: var(--color-danger);
    margin-bottom: 0.5rem;
}
.auction-card-time {
    font-size: 0.85rem;
    color: var(--color-text-alt);
}
.auction-card-time i {
    vertical-align: middle;
}

/* --- 6. Auction View Page --- */
.auction-view-layout {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 2rem;
    margin-bottom: 2rem;
}
.auction-view-images .main-image {
    width: 100%;
    aspect-ratio: 1 / 1;
    border: 1px solid var(--color-border);
    border-radius: var(--border-radius);
    overflow: hidden;
}
.auction-view-images .main-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}
.item-title {
    font-size: 2.2rem;
    margin-bottom: 0.5rem;
}
.seller-info {
    font-size: 1.1rem;
    color: var(--color-text-alt);
    margin-bottom: 1.5rem;
}
.seller-info strong {
    color: var(--color-text-header);
}
.btn-send-message {
    margin-left: 0.5rem;
    color: var(--color-primary);
}
.btn-send-message:hover {
    color: var(--color-primary-hover);
}

.auction-timer {
    font-size: 1.2rem;
    font-weight: 600;
    padding: 1rem;
    border-radius: var(--border-radius);
    background-color: var(--color-bg);
    border: 1px solid var(--color-border);
    margin-bottom: 1.5rem;
}
.auction-timer.urgent {
    background-color: #fff9e6;
    border-color: #ffc107;
}
.auction-timer.ended {
    background-color: #f8f9fa;
    color: var(--color-text-alt);
}

.price-info {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1rem;
    margin-bottom: 1.5rem;
}
.price-box {
    border: 1px solid var(--color-border);
    border-radius: var(--border-radius);
    padding: 1rem;
}
.price-box .label {
    display: block;
    font-size: 0.9rem;
    color: var(--color-text-alt);
    margin-bottom: 0.25rem;
}
.price-box .price-current {
    font-size: 2rem;
    font-weight: 700;
    color: var(--color-danger);
}
.price-box .price-min {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--color-success);
}

.bid-box {
    background-color: var(--color-bg-alt);
    padding: 1.5rem;
    border: 1px solid var(--color-border);
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-sm);
}
.bid-box .btn-bid {
    width: 100%;
    font-size: 1.1rem;
    padding: 0.8rem;
}
.auction-ended-message {
    font-size: 1.2rem;
    font-weight: 600;
    text-align: center;
    color: var(--color-text-alt);
    padding: 1rem 0;
}

.item-full-details {
    background-color: var(--color-bg-alt);
    border: 1px solid var(--color-border);
    border-radius: var(--border-radius);
    padding: 2rem;
}
.item-full-details h3 {
    border-bottom: 2px solid var(--color-border);
    padding-bottom: 0.5rem;
}
.bid-history table {
    margin-top: 1rem;
}
.bid-history th {
    background: var(--color-bg);
    padding: 0.75rem 1rem;
    text-align: left;
}
.bid-history td {
    padding: 0.75rem 1rem;
    border-bottom: 1px solid var(--color-border);
}
.certificate-section {
    margin-top: 2rem;
}
.certificate-section h4 {
    margin-top: 1.5rem;
}
.cert-gallery {
    display: flex;
    gap: 1rem;
    flex-wrap: wrap;
}
.cert-gallery a {
    display: block;
    width: 150px;
    height: 100px;
}
.cert-gallery img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    border: 1px solid var(--color-border);
    border-radius: 4px;
}

/* --- 7. Responsive --- */
@media (max-width: 992px) {
    .homepage-layout {
        grid-template-columns: 1fr; /* (ซ่อน Sidebar ซ้ายในแท็บเล็ต) */
    }
    .homepage-sidebar-left {
        display: none;
    }
    .auction-view-layout {
        grid-template-columns: 1fr;
    }
    .auction-grid {
        grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
    }
    
    /* (*** ใหม่: ปรับ Category Browser ในมือถือ ***) */
    .category-group {
        flex-direction: column;
        gap: 0.5rem;
        align-items: stretch;
    }
    .category-group h4 {
        width: 100%;
        padding-top: 0;
        border-bottom: 1px solid var(--color-border);
        padding-bottom: 0.5rem;
    }
}
@media (max-width: 768px) {
    .header-main {
        flex-direction: column;
        gap: 1rem;
    }
    .header-nav {
        order: 3;
        width: 100%;
        justify-content: center;
        flex-wrap: wrap;
    }
    .header-logo { order: 1; }
    .header-user { order: 2; }
    
    .footer-content {
        grid-template-columns: 1fr;
        text-align: center;
    }
    .footer-links ul {
        justify-content: center;
    }
    
    .form-group-grid {
        grid-template-columns: 1fr;
        gap: 0;
        margin-bottom: 0; /* (ลบช่องว่าง grid แต่ให้ form-group จัดการ) */
    }
    .form-group-grid .form-group {
        margin-bottom: 1.5rem;
    }
    .price-info {
        grid-template-columns: 1fr;
    }
}

/* --- 8. Profile Page --- */
.profile-layout {
    display: grid;
    grid-template-columns: 1fr 300px;
    gap: 2rem;
}
.profile-card {
    background: var(--color-bg-alt);
    border: 1px solid var(--color-border);
    border-radius: var(--border-radius);
    margin-bottom: 1.5rem;
    overflow: hidden; /* (กัน h3 ทะลุ) */
}
.profile-card h3 {
    padding: 1.25rem 1.5rem;
    margin: 0;
    border-bottom: 1px solid var(--color-border);
    font-size: 1.2rem;
}
.profile-card .profile-quick-actions {
    padding: 1.5rem;
    display: flex;
    flex-direction: column;
    gap: 1rem;
}
.profile-card form {
    padding: 1.5rem;
}

.kyc-status {
    padding: 1.5rem;
    border-radius: var(--border-radius);
    margin-bottom: 1.5rem;
    display: flex;
    gap: 1.5rem;
    align-items: center;
}
.kyc-status i {
    font-size: 2.5rem;
}
.kyc-status strong {
    display: block;
    font-size: 1.2rem;
}
.kyc-status span {
    font-size: 0.9rem;
}
.kyc-status.kyc-none {
    background-color: #fff9e6;
    color: #b38b00;
}
.kyc-status.kyc-pending {
    background-color: #ebf8ff;
    color: #2c5282;
}
.kyc-status.kyc-approved {
    background-color: #f0fff4;
    color: #2f855a;
}
.kyc-status.kyc-rejected {
    background-color: #fff3f3;
    color: #c53030;
}

.feedback-list {
    display: flex;
    flex-direction: column;
}
.feedback-item {
    display: flex;
    gap: 1rem;
    padding: 1.25rem 1.5rem;
    border-bottom: 1px solid var(--color-border);
}
.feedback-item:last-child {
    border-bottom: 0;
}
.feedback-rating {
    font-size: 1.5rem;
}
.feedback-rating.rating-positive {
    color: var(--color-success);
}
.feedback-rating.rating-negative {
    color: var(--color-danger);
}
.feedback-content {
    flex: 1;
}
.feedback-content p {
    margin: 0 0 0.5rem 0;
    font-size: 1rem;
}
.feedback-content small {
    color: var(--color-text-alt);
}

.back-link {
    display: inline-block;
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--color-text-alt);
    margin-bottom: 1rem;
    text-decoration: none;
}
.back-link:hover {
    color: var(--color-primary);
}
.shop-item-thumbnail {
    width: 60px;
    height: 60px;
    object-fit: cover;
    border-radius: 4px;
    border: 1px solid var(--color-border);
}

@media (max-width: 992px) {
    .profile-layout {
        grid-template-columns: 1fr;
    }
    .profile-sidebar {
        order: -1; /* (สลับเมนูขึ้นบนในมือถือ) */
    }
}

/* --- 9. Webboard (หน้า Categories) --- */
.content-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 1rem;
    margin-bottom: 1.5rem;
    padding-bottom: 1rem;
    border-bottom: 1px solid var(--color-border);
}
.content-header h1 {
    margin: 0;
}
.content-table table {
    background: var(--color-bg-alt);
    border: 1px solid var(--color-border);
    border-radius: var(--border-radius);
    overflow: hidden;
}
.content-table th, .content-table td {
    padding: 1rem 1.25rem;
    border-bottom: 1px solid var(--color-border);
    text-align: left;
    vertical-align: top;
}
.content-table thead th {
    background: var(--color-bg);
    font-size: 0.9rem;
    color: var(--color-text-alt);
}
.webboard-table .col-topic { width: 60%; }
.webboard-table .col-replies { width: 10%; text-align: center; }
.webboard-table .col-lastpost { width: 20%; }
.topic-title {
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--color-text-header);
    text-decoration: none;
}
.topic-title:hover {
    color: var(--color-primary);
}
.topic-title-small {
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--color-text-header);
}
.webboard-table td {
    vertical-align: middle;
}
.webboard-table .col-lastpost {
    font-size: 0.9rem;
    line-height: 1.4;
    color: var(--color-text-alt);
}

/* --- 10. Topic View --- */
.topic-post {
    display: grid;
    grid-template-columns: 200px 1fr;
    background: var(--color-bg-alt);
    border: 1px solid var(--color-border);
    border-radius: var(--border-radius);
    margin-bottom: 1.5rem;
    box-shadow: var(--shadow-sm);
}
.post-author {
    padding: 1.5rem;
    border-right: 1px solid var(--color-border);
    background: var(--color-bg);
    text-align: center;
}
.post-author strong {
    font-size: 1.1rem;
    color: var(--color-primary);
}
.post-author .author-avatar {
    width: 80px;
    height: 80px;
    border-radius: 50%;
    background: var(--color-border);
    margin: 0 auto 1rem auto;
}
.post-content {
    padding: 1.5rem;
}
.post-meta {
    font-size: 0.9rem;
    color: var(--color-text-alt);
    border-bottom: 1px solid var(--color-border);
    padding-bottom: 1rem;
    margin-bottom: 1.5rem;
}
.post-body {
    font-size: 1.1rem;
    line-height: 1.7;
}
.post-body img {
    max-width: 100%;
    height: auto;
    border-radius: 4px;
    margin: 1rem 0;
}
.reply-box {
    background: var(--color-bg-alt);
    border: 1px solid var(--color-border);
    border-radius: var(--border-radius);
    padding: 2rem;
}

/* --- 11. Responsive (Webboard/Topic) --- */
@media (max-width: 768px) {
    .webboard-table .col-replies,
    .webboard-table .col-lastpost {
        display: none; /* (ซ่อนในมือถือ) */
    }
    .webboard-table .col-topic {
        width: 100%;
    }
    
    .topic-post {
        grid-template-columns: 1fr;
    }
    .post-author {
        border-right: 0;
        border-bottom: 1px solid var(--color-border);
        text-align: left;
        display: flex;
        align-items: center;
        gap: 1rem;
    }
    .post-author .author-avatar {
        width: 50px;
        height: 50px;
        margin: 0;
    }
}

/* --- 12. Login/Register Page --- */
.auth-container {
    max-width: 450px;
}
.auth-tabs {
    display: flex;
    border-bottom: 1px solid var(--color-border);
    margin-bottom: 2rem;
}
.auth-tab {
    flex: 1;
    text-align: center;
    padding: 1rem;
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--color-text-alt);
    text-decoration: none;
    border-bottom: 3px solid transparent;
}
.auth-tab.active {
    color: var(--color-primary);
    border-bottom-color: var(--color-primary);
}
.auth-footer {
    text-align: center;
    margin-top: 1.5rem;
    color: var(--color-text-alt);
}

/* --- 13. Admin STOP (หน้าบ้าน) --- */
/* (อันนี้จาก auction_view.php) */
.auction-status {
    padding: 1rem;
    font-size: 1.1rem;
    font-weight: 600;
    border-radius: var(--border-radius);
    margin-bottom: 1.5rem;
    display: flex;
    align-items: center;
    gap: 0.75rem;
}
.auction-status i {
    font-size: 1.5rem;
}
.auction-status.status-authentic {
    background-color: #f0fff4;
    color: #2f855a;
    border: 1px solid #c6f6d5;
}
.auction-status.status-check {
    background-color: #fffaf0;
    color: #b7791f;
    border: 1px solid #feebc8;
}
.auction-status.status-fake {
    background-color: #fff3f3;
    color: #c53030;
    border: 1px solid #f5c6cb;
}

/* --- 14. Gallery (หน้าบ้าน) --- */
/* (อันนี้จาก auction_view.php) */
.thumbnail-gallery {
    display: flex;
    gap: 10px;
    margin-top: 10px;
    flex-wrap: wrap;
}
.thumb-item {
    width: 80px;
    height: 80px;
    object-fit: cover;
    border: 2px solid var(--color-border);
    border-radius: 4px;
    cursor: pointer;
    opacity: 0.7;
    transition: opacity 0.2s, border-color 0.2s;
}
.thumb-item:hover {
    opacity: 1;
}
.thumb-item.active {
    opacity: 1;
    border-color: var(--color-primary);
}
#main-auction-image {
    cursor: zoom-in; /* (ทำให้รู้ว่าคลิกได้) */
}

/* --- 15. Auction Card Icons (หน้าบ้าน) --- */
/* (อันนี้จาก auction_board.php) */
.auction-card-image {
    position: relative; /* (เพื่อให้ไอคอนลอยทับได้) */
}
.auction-card-certs {
    position: absolute;
    top: 8px;
    left: 8px;
    display: flex;
    gap: 6px;
}
.cert-icon {
    width: 24px;
    height: 24px;
    border-radius: 50%;
    background-size: 60%;
    background-position: center;
    background-repeat: no-repeat;
    border: 2px solid #fff;
    box-shadow: 0 1px 3px rgba(0,0,0,0.2);
}
.cert-icon.cert-dd {
    /* (TODO: ใส่ URL ไอคอนบัตร DD-Pra) */
    background-color: #007bff; 
    /* background-image: url('path/to/dd-pra-icon.svg'); */
}
.cert-icon.cert-other {
     /* (TODO: ใส่ URL ไอคอนบัตรอื่น) */
    background-color: #6c757d;
    /* background-image: url('path/to/other-cert-icon.svg'); */
}
/* (ไฮไลท์รายการใกล้ปิด) */
.auction-card.is-urgent {
    background-color: #fff9e6; /* (สีเหลืองอ่อน) */
    border-color: #ffc107;
}

/* --- 16. Certificate (บัตรรับประกัน) --- */
.cert-container {
    width: 100%;
    max-width: 900px;
    margin: 2rem auto;
    background: var(--color-bg-alt);
    border: 2px solid var(--color-border);
    box-shadow: var(--shadow-md);
    border-radius: var(--border-radius);
    overflow: hidden;
}
.cert-card-header {
    padding: 1.5rem;
    text-align: center;
    border-bottom: 2px solid var(--color-border);
    background: var(--color-bg);
}
.cert-card-header h1 {
    margin: 0;
    color: var(--color-primary);
}
.cert-card-header p {
    font-size: 1.1rem;
    margin: 0.25rem 0 0 0;
    color: var(--color-text-alt);
}
.cert-card-body {
    padding: 2rem;
    display: grid;
    grid-template-columns: 300px 1fr;
    gap: 2rem;
}
.cert-card-image {
    width: 100%;
    aspect-ratio: 1 / 1;
    border: 1px solid var(--color-border);
    border-radius: var(--border-radius);
    overflow: hidden;
}
.cert-card-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}
.cert-card-details {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}
.detail-row {
    display: grid;
    grid-template-columns: 120px 1fr;
    font-size: 1.1rem;
}
.detail-row .label {
    color: var(--color-text-alt);
    font-weight: 500;
}
.detail-row .value {
    color: var(--color-text-header);
    font-weight: 700;
    word-break: break-word;
}
.detail-row .value.code {
    color: var(--color-danger);
}
.cert-card-footer {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1.5rem;
    background: var(--color-bg);
    border-top: 2px solid var(--color-border);
}
.cert-qr img {
    width: 100px;
    height: 100px;
}
.cert-footer-text {
    text-align: right;
    font-size: 0.9rem;
    color: var(--color-text-alt);
}

/* --- 17. Pagination (เพิ่มใหม่) --- */
.pagination-container {
    display: flex;
    justify-content: center;
    align-items: center;
    margin-top: 2rem;
    padding: 1rem 0;
}
.pagination {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 0.5rem;
}
.pagination-link, .pagination-dots {
    display: inline-block;
    padding: 0.5rem 1rem;
    min-width: 40px;
    text-align: center;
    border: 1px solid var(--color-border);
    border-radius: var(--border-radius);
    background: var(--color-bg-alt);
    color: var(--color-text-header);
    text-decoration: none;
    font-weight: 600;
}
.pagination-link:hover {
    background-color: var(--color-bg);
    border-color: var(--color-border-input);
    text-decoration: none;
}
.pagination-link.active {
    background-color: var(--color-primary);
    border-color: var(--color-primary);
    color: var(--color-text-on-primary);
}
.pagination-link.disabled {
    color: var(--color-text-alt);
    background-color: var(--color-bg);
    cursor: not-allowed;
    opacity: 0.7;
}

/* (*** เพิ่มใหม่: --- 18. Mailbox (ระบบ Chat/Thread) --- ***) */
.btn-back-link {
    display: inline-block;
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--color-text-alt);
    margin-bottom: 1rem;
    text-decoration: none;
}
.btn-back-link:hover {
    color: var(--color-primary);
    text-decoration: underline;
}

/* (หน้า Inbox - รายการแชท) */
.inbox-list .inbox-item {
    display: grid;
    grid-template-columns: 1fr 2fr 1fr;
    gap: 1rem;
    padding: 1rem;
    border-bottom: 1px solid var(--color-border);
    color: var(--color-text);
    text-decoration: none;
    transition: background-color 0.2s;
}
.inbox-list .inbox-item:hover {
    background-color: var(--color-bg);
}
.inbox-list .inbox-item.unread {
    background-color: #fffaf0; /* (สีพื้นหลัง "ยังไม่อ่าน") */
    font-weight: 700;
}
.inbox-sender {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-weight: 600;
    color: var(--color-text-header);
}
.inbox-item.unread .inbox-sender i {
    color: var(--color-primary);
}
.inbox-subject {
    color: var(--color-text);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}
.inbox-subject strong {
    color: var(--color-text-header);
}
.inbox-subject .last-message {
    display: block;
    font-size: 0.9rem;
    color: var(--color-text-alt);
    font-weight: 400; /* (ไม่หนา) */
}
.inbox-time {
    font-size: 0.85rem;
    color: var(--color-text-alt);
    text-align: right;
    white-space: nowrap;
}

/* (หน้า Read - ห้องแชท) */
.message-thread-container {
    background: var(--color-bg);
    border: 1px solid var(--color-border);
    border-radius: 8px;
    padding: 1.5rem;
    margin-bottom: 1.5rem;
    max-height: 60vh;
    overflow-y: auto;
    display: flex;
    flex-direction: column;
    gap: 1rem;
}
.message-bubble {
    padding: 0.75rem 1.25rem;
    border-radius: 18px;
    max-width: 75%;
}
.bubble-sender {
    font-size: 0.8rem;
    font-weight: 700;
    margin-bottom: 0.25rem;
}
.bubble-body {
    font-size: 1rem;
    word-wrap: break-word;
}
.bubble-time {
    font-size: 0.75rem;
    text-align: right;
    margin-top: 0.5rem;
    opacity: 0.7;
}

/* (แชทของคนอื่น) */
.bubble-other {
    background-color: #e9ecef;
    color: #343a40; /* (*** แก้ไข: บังคับให้เป็นสีเข้มเสมอ ***) */
    border-bottom-left-radius: 4px;
    align-self: flex-start;
}
.bubble-other .bubble-sender {
    color: var(--color-secondary);
}

/* (แชทของเรา) */
.bubble-own {
    background-color: var(--color-primary);
    color: #ffffff;
    border-bottom-right-radius: 4px;
    align-self: flex-end;
}
.bubble-own .bubble-sender {
    color: #f1f3f5;
}

.message-reply-form {
    border-top: 1px solid var(--color-border);
    padding-top: 1.5rem;
}


/* --- 19. Search Bar (เพิ่มใหม่) --- */
.search-bar-container {
    background-color: var(--color-bg-alt);
    padding: 1.5rem;
    border-radius: var(--border-radius);
    margin-bottom: 2rem;
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--color-border);
}
.search-form-group {
    display: flex;
    gap: 1rem;
}
.search-input {
    flex-grow: 1; /* (ให้ช่อง input ยืดเต็ม) */
    padding: 0.75rem 1rem;
    font-size: 1.1rem;
    border: 1px solid var(--color-border-input);
    border-radius: var(--border-radius);
    background-color: var(--color-bg); /* (ใช้สี bg ธรรมดา) */
    color: var(--color-text);
    font-family: var(--font-body);
    transition: border-color 0.2s, box-shadow 0.2s;
}
.search-input:focus {
    outline: none;
    border-color: var(--color-border-hover);
    box-shadow: 0 0 0 3px rgba(0,123,255, 0.2);
}
.search-btn {
    font-size: 1.1rem;
    padding: 0.75rem 1.25rem;
    flex-shrink: 0; /* (ไม่ให้ปุ่มโดนบีบ) */
}
@media (max-width: 576px) {
    .search-form-group {
        flex-direction: column;
    }
    .search-btn {
        width: 100%;
    }
}

/* --- (*** เพิ่มใหม่: 20. Shop Manage Edit (หน้าบ้าน) ***) --- */
.current-image-grid {
    display: flex;
    flex-wrap: wrap;
    gap: 1rem;
    margin-bottom: 1rem;
}
.current-image-item {
    position: relative;
    width: 120px;
    height: 120px;
    border: 1px solid var(--color-border);
    border-radius: 4px;
    overflow: hidden;
}
.current-image-item img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}
.current-image-item .delete-img-label {
    position: absolute;
    top: 5px;
    right: 5px;
    background-color: rgba(220, 53, 69, 0.8);
    color: white;
    padding: 2px 8px;
    font-size: 0.8rem;
    border-radius: 4px;
    cursor: pointer;
    opacity: 0;
    transition: opacity 0.2s;
    margin-bottom: 0; /* (ลบ margin-bottom ของ label ปกติ) */
}
.current-image-item:hover .delete-img-label {
    opacity: 1;
}
.current-image-item input[type="checkbox"] {
    display: none; /* (ซ่อน checkbox จริง) */
}
.current-image-item input[type="checkbox"]:checked + .delete-img-label {
    /* (สไตล์เมื่อติ๊กถูก) */
    opacity: 1;
    background-color: var(--color-danger);
}
.current-image-item input[type="checkbox"]:checked ~ img {
    /* (ทำให้รูปซีด) */
    opacity: 0.4;
}

/* --- (*** เพิ่มใหม่: 21. Shop Card (หน้า Market Board) ***) --- */
.shop-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
    gap: 1.5rem;
}
.shop-card {
    background-color: var(--color-bg-alt);
    border: 1px solid var(--color-border);
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-sm);
    overflow: hidden;
    text-decoration: none;
    transition: all 0.2s;
}
.shop-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-md);
    text-decoration: none;
}
.shop-card-image {
    width: 100%;
    aspect-ratio: 1 / 1; /* (*** นี่คือส่วนที่แก้ไขขนาดรูปปก ***) */
    overflow: hidden;
    background-color: var(--color-bg);
}
.shop-card-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}
.shop-card-content {
    padding: 1rem;
}
.shop-card-title {
    font-size: 1rem;
    font-weight: 600;
    color: var(--color-text-header);
    margin-bottom: 0.5rem;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}
.shop-card-description {
    font-size: 0.9rem;
    color: var(--color-text-alt);
    margin-bottom: 0.75rem;
    height: 3.2em; /* (จำกัด 2 บรรทัด) */
    overflow: hidden;
    line-height: 1.6em;
}
.shop-card-owner {
    font-size: 0.85rem;
    color: var(--color-text-alt);
}
.shop-card-owner i {
    vertical-align: middle;
}

/* --- (*** เพิ่มใหม่: 22. Auction View V3 Fix ***) --- */
/* (CSS นี้จำเป็นสำหรับ auction_view.php V3) */

/* 1. จัดการส่วน Placeholder */
.auction-view-details {
    /* (เราต้องให้คอลัมน์ขวามีความสูงขั้นต่ำ 
       เพื่อให้ placeholder ทำงานได้แม้เนื้อหา static จะน้อย) */
    min-height: 400px; 
}
#dynamic-auction-details {
    display: flex;
    flex-direction: column;
    height: 100%;
}

/* 2. จัดการส่วน Bid History */
#dynamic-bid-history {
    /* (จะถูกย้ายมาต่อท้าย .item-full-details) */
    margin-top: 2rem;
    padding-top: 2rem;
    border-top: 1px solid var(--color-border);
}

/* 3. จัดการ Responsive (เพื่อให้ placeholder ทำงานถูกต้อง) */
@media (max-width: 992px) {
    .auction-view-details {
        min-height: auto; /* (ในจอมือถือ ไม่ต้องกำหนดความสูง) */
    }
}


/* --- (*** เพิ่มใหม่: 23. Profile Page Updates (New) ***) --- */
/* (ส่วนที่เพิ่มเข้ามาสำหรับหน้า Profile.php ที่อัปเดต) */
.profile-pic-display {
    width: 120px;
    height: 120px;
    border-radius: 50%;
    background-color: var(--color-bg);
    border: 3px solid var(--color-border);
    margin: 1rem auto;
    display: flex;
    justify-content: center;
    align-items: center;
    overflow: hidden;
}
.profile-pic-display img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}
.profile-pic-display i {
    font-size: 60px;
    color: var(--color-border-input);
}

.vip-status-box {
    background-color: #fffbeb; /* (สีเหลืองอ่อน) */
    border: 1px solid #fde68a; /* (สีเหลืองเข้ม) */
    color: #b45309;
    padding: 0.75rem 1rem;
    border-radius: var(--border-radius);
    text-align: center;
    margin-bottom: 1rem;
}
.vip-status-box strong {
    display: block;
    font-size: 1rem;
    font-weight: 600;
}
.vip-status-box small {
    font-size: 0.9rem;
}

/* (เพิ่มในส่วน Profile / Main Form) */
.profile-pic-preview {
    width: 80px;
    height: 80px;
    border-radius: 50%;
    background-color: var(--color-bg);
    border: 2px solid var(--color-border);
    display: flex;
    justify-content: center;
    align-items: center;
    overflow: hidden;
}
.profile-pic-preview img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}
.profile-pic-preview i {
    font-size: 40px;
    color: var(--color-border-input);
}

/* (ทำให้ Input ที่ Readonly ดูเหมือนข้อความปกติ) */
input:read-only,
input:disabled {
    background-color: var(--color-bg);
    color: var(--color-text-alt);
    border-color: var(--color-border);
    cursor: not-allowed;
}

/* (เพิ่ม CSS สำหรับ Warning Message) */
.warning-message {
    background-color: #fffbeb; /* (สีเหลืองอ่อน) */
    border: 1px solid #fde68a; /* (สีเหลืองเข้ม) */
    color: #b45309;
    padding: 1rem;
    border-radius: var(--border-radius);
    font-weight: 500;
    display: flex;
    align-items: center;
    gap: 0.75rem;
}
.warning-message i {
    font-size: 1.5rem;
}


/* --- (*** เพิ่มใหม่: 24. Auction System Updates (New) ***) --- */
/* (ส่วนที่เพิ่มเข้ามาสำหรับหน้า Auction Create/Board/View) */

/* 1. สำหรับหน้า auction_create.php (Image Preview) */
.image-preview-container {
    display: flex;
    flex-wrap: wrap;
    gap: 1rem;
    margin-top: 1rem;
    padding: 1rem;
    background-color: var(--color-bg);
    border: 1px dashed var(--color-border-input);
    border-radius: var(--border-radius);
    min-height: 100px;
}
.image-preview-item {
    width: 100px;
    height: 100px;
    border: 1px solid var(--color-border);
    border-radius: 4px;
    overflow: hidden;
    display: flex;
    flex-direction: column;
    align-items: center;
    background: #fff;
}
.image-preview-item img {
    width: 100%;
    height: 80px;
    object-fit: cover;
}
.image-preview-item span {
    font-size: 0.75rem;
    font-weight: 500;
    color: var(--color-text-alt);
    padding: 2px;
}
.image-preview-more {
    width: 100px;
    height: 100px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--color-bg);
    border: 1px solid var(--color-border);
    border-radius: 4px;
    font-weight: 600;
    color: var(--color-text-alt);
    text-align: center;
}

/* 2. สำหรับหน้า auction_create.php (Price Suggestion) */
.price-suggestion {
    font-size: 0.85rem;
    font-weight: 500;
    padding: 0.5rem 0.75rem;
    margin-top: 0.5rem;
    border-radius: 4px;
    display: none; /* (ซ่อนไว้ก่อน) */
}
.price-suggestion i {
    vertical-align: middle;
    margin-right: 0.25rem;
}
.price-suggestion.error {
    background-color: #f8d7da;
    color: #721c24;
}
.price-suggestion.warning {
    background-color: #fff3cd;
    color: #856404;
}
.price-suggestion.success {
    background-color: #d4edda;
    color: #155724;
}

/* 3. สำหรับหน้า auction_board.php (แสดงหมวดหมู่) */
.auction-card-content {
    display: flex;
    flex-direction: column;
    flex: 1;
}
.auction-card-category {
    font-size: 0.8rem;
    font-weight: 600;
    color: var(--color-text-alt);
    margin-bottom: 0.25rem;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}
.auction-card-title {
    /* (ปรับให้เตี้ยลงเล็กน้อยเพื่อเพิ่มที่ให้หมวดหมู่) */
    font-size: 0.95rem;
    height: 2.8em; /* (2 บรรทัด) */
    line-height: 1.4em;
    overflow: hidden;
    text-overflow: ellipsis;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    margin-bottom: 0.5rem;
}
.auction-card-price {
    margin-bottom: 0.5rem;
}
.auction-card-time {
    margin-top: auto; /* (ดันลงล่างสุด) */
    transition: background-color 0.3s, color 0.3s, border-color 0.3s;
    padding: 0.5rem 1rem;
    margin: 0.5rem -1rem -1rem -1rem; /* (ขยายให้เต็ม Card Content) */
    border-top: 1px solid var(--color-border);
}

/* 4. สำหรับหน้า auction_board.php (สีของ Timer) */
.auction-card.ended .auction-card-time {
    background-color: var(--color-bg);
    color: var(--color-text-alt);
}
.auction-card-time.timer-urgent-24h { /* (เหลือง) */
    background-color: #fffbeb;
    color: #b45309;
    border-color: #fde68a;
}
.auction-card-time.timer-urgent-8h { /* (ส้ม) */
    background-color: #fff7ed;
    color: #c2410c;
    border-color: #fed7aa;
}
.auction-card-time.timer-urgent-1h { /* (แดง) */
    background-color: #fef2f2;
    color: #b91c1c;
    border-color: #fecaca;
    font-weight: 600;
}
.auction-card-time.timer-24h-active { /* (ฟ้า - สำหรับนับถอยหลัง 24 ชม.) */
    background-color: #eff6ff;
    color: #1d4ed8;
    border-color: #bfdbfe;
    font-weight: 600;
}

/* 5. สำหรับหน้า auction_view.php (ให้รูปเต็ม) */
.auction-view-images .main-image img {
    object-fit: contain; /* (*** แก้ไขจาก cover เป็น contain ***) */
    background-color: #000; /* (เพิ่มพื้นหลังสีดำ) */
}

/* --- (*** เพิ่มใหม่: 25. "My Auctions" & Payment Page Updates (New) ***) --- */
/* (ส่วนที่เพิ่มเข้ามาสำหรับหน้า my_auctions.php และ payment.php) */

/* 1. สำหรับ "ปุ่มชื่นชอบ" ใน auction_view.php */
.btn-favorite {
    display: inline-block;
    font-size: 1.5rem;
    color: var(--color-text-alt);
    margin-left: 0.75rem;
    vertical-align: middle;
    transition: all 0.2s;
}
.btn-favorite:hover {
    color: var(--color-danger);
    transform: scale(1.1);
    text-decoration: none;
}
.btn-favorite.active {
    color: var(--color-danger);
}
.btn-favorite.active i {
    font-weight: bold; /* (เปลี่ยนเป็นรูปหัวใจเต็ม) */
}

/* 2. สำหรับ "แท็บ" ใน my_auctions.php */
/* (ใช้ .auction-tabs ซ้ำจากของเดิม แต่เพิ่มความสามารถ) */
.auction-tabs {
    flex-wrap: wrap; /* (รองรับมือถือ) */
    white-space: nowrap;
}
.auction-tabs .tab-link {
    white-space: nowrap;
}
.auction-tabs .tab-link i {
    font-size: 1.1rem;
    vertical-align: middle;
}

/* 3. สำหรับ "ฟอร์ม Filter" ใน my_auctions.php */
.filter-form {
    margin-bottom: 1.5rem;
}
.filter-form .form-group {
    margin-bottom: 0;
}
.filter-form select {
    max-width: 250px;
    padding: 0.5rem 0.75rem;
    font-size: 0.9rem;
    background-color: var(--color-bg-alt); /* (เพิ่ม) */
}

/* 4. สำหรับ "รายการ" ใน my_auctions.php */
.auction-list {
    display: flex;
    flex-direction: column;
}
.auction-list-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap; /* (รองรับมือถือ) */
    gap: 1rem;
    padding: 1.25rem 0;
    border-bottom: 1px solid var(--color-border);
}
.profile-card .auction-list {
    padding: 0 1.5rem; /* (เพิ่ม padding ให้ list ใน card) */
}
.profile-card .auction-list-item:first-child {
    padding-top: 1.25rem;
}
.profile-card .auction-list-item:last-child {
    border-bottom: 0;
    padding-bottom: 1.25rem;
}
.auction-list-item span {
    display: block;
    line-height: 1.4;
}
.auction-list-item span strong {
    color: var(--color-text-header);
}
.empty-list-msg {
    text-align: center; 
    padding: 1.5rem;
    color: var(--color-text-alt);
}

/* 5. สำหรับ "ฟอร์ม Feedback" ใน my_auctions.php */
.feedback-list-area .feedback-item {
    padding: 1.5rem 0;
}
.feedback-list-area .item-info {
    flex: 1;
    min-width: 200px;
}
.feedback-list-area .feedback-action {
    flex: 1;
    min-width: 300px;
}
.feedback-given {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    color: var(--color-success);
    font-weight: 500;
}
.feedback-given i {
    font-size: 1.25rem;
}

.feedback-form-new {
    border: 1px solid var(--color-border);
    border-radius: var(--border-radius);
    padding: 0.75rem;
    background-color: var(--color-bg);
}
.feedback-rating-select {
    display: flex;
    gap: 1rem;
    margin-bottom: 0.75rem;
}
.feedback-rating-select label {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-weight: 500;
    cursor: pointer;
}
.feedback-rating-select .fb-radio-positive { color: var(--color-success); }
.feedback-rating-select .fb-radio-negative { color: var(--color-danger); }
.feedback-rating-select input[type="radio"] {
    margin-right: 0.25rem;
}
.feedback-form-new textarea {
    font-size: 0.9rem;
    min-height: 50px;
}
.feedback-form-new .btn-sm {
    font-size: 0.8rem;
    padding: 0.25rem 0.75rem;
}

/* 6. (*** เพิ่มใหม่: CSS สำหรับหน้า Payment.php ***) */
.payment-summary { font-size: 1.1rem; }
.payment-price {
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 1.2rem;
    padding-top: 0.75rem;
    margin-top: 0.75rem;
    border-top: 1px solid var(--color-border);
}
.payment-price strong {
    font-size: 1.5rem;
    color: var(--color-danger);
}
.payment-info-box {
    background-color: var(--color-bg);
    color: var(--color-text-header);
    font-weight: 500;
}

/* --- (*** เพิ่มใหม่: 26. Lightbox Popup (Modal) ***) --- */
.lightbox-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.85); /* (พื้นหลังมืด) */
    z-index: 9990;
    display: none; /* (ซ่อนไว้ก่อน) */
    opacity: 0;
    transition: opacity 0.3s ease;
    -webkit-backdrop-filter: blur(5px);
    backdrop-filter: blur(5px);
}
.lightbox-overlay.active {
    display: block;
    opacity: 1;
}
.lightbox-container {
    position: fixed;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 90vw;
    height: 90vh;
    z-index: 9999;
    display: none;
    flex-direction: column;
    justify-content: center;
    align-items: center;
}
.lightbox-overlay.active .lightbox-container {
    display: flex;
}
.lightbox-image-wrapper {
    position: relative;
    width: 100%;
    height: 100%;
    display: flex;
    justify-content: center;
    align-items: center;
}
.lightbox-image {
    max-width: 100%;
    max-height: 100%;
    object-fit: contain;
    border-radius: 4px;
    box-shadow: 0 0 40px rgba(0,0,0,0.7);
}
.lightbox-close {
    position: absolute;
    top: 10px;
    right: 10px;
    background-color: rgba(255, 255, 255, 0.9);
    color: #000;
    border: none;
    border-radius: 50%;
    width: 40px;
    height: 40px;
    font-size: 1.8rem;
    font-weight: bold;
    line-height: 40px;
    text-align: center;
    cursor: pointer;
    z-index: 10000;
    transition: transform 0.2s, background-color 0.2s;
}
.lightbox-close:hover {
    transform: scale(1.1);
    background-color: #fff;
}
.lightbox-nav {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    width: 100%;
    display: flex;
    justify-content: space-between;
    pointer-events: none; /* (ให้คลิกทะลุได้) */
}
.lightbox-prev, .lightbox-next {
    pointer-events: auto; /* (ให้ปุ่มกดได้) */
    background-color: rgba(0, 0, 0, 0.3);
    color: #fff;
    border: none;
    font-size: 2.5rem;
    cursor: pointer;
    padding: 1rem 1.2rem;
    border-radius: 8px;
    transition: background-color 0.2s;
    display: none; /* (ซ่อนไว้ก่อน) */
}
.lightbox-prev {
    margin-left: 10px;
}
.lightbox-next {
    margin-right: 10px;
}
.lightbox-prev:hover, .lightbox-next:hover {
    background-color: rgba(0, 0, 0, 0.6);
}
/* (แสดงปุ่มเมื่อมีหลายรูป) */
.lightbox-container[data-gallery="true"] .lightbox-prev,
.lightbox-container[data-gallery="true"] .lightbox-next {
    display: block;
}

.lightbox-caption {
    color: #eee;
    text-align: center;
    margin-top: 0.5rem;
    font-size: 0.9rem;
    text-shadow: 0 1px 2px rgba(0,0,0,0.5);
}