/*
Theme Name: Question-Hub
Theme URI: https://thaylinh.com
Author: ThayLinh Team
Author URI: https://thaylinh.com
Description: Golden luxury Q&A WordPress theme
Version: 2.1.0
License: GPL v2 or later
Text Domain: question-hub
*/

/* ========================================
   Golden Luxury Design System
======================================== */
:root {
    /* Golden Color Palette */
    --gold-primary: #D4AF37;      /* Classic Gold */
    --gold-light: #F4E4BC;        /* Light Gold */
    --gold-dark: #B8960A;         /* Dark Gold */
    --gold-shine: #FFD700;        /* Bright Gold */
    --gold-muted: #C9B037;        /* Muted Gold */
    
    /* Background Colors */
    --bg-primary: #FFFEF7;        /* Warm White */
    --bg-secondary: #FAF8F1;      /* Cream */
    --bg-accent: #FFF8E7;         /* Light Cream */
    
    /* Text Colors */
    --text-primary: #2C2416;      /* Dark Brown */
    --text-secondary: #5C4E3C;    /* Medium Brown */
    --text-light: #8B7355;        /* Light Brown */
    
    /* UI Elements */
    --border-color: #E8D7BE;      /* Light Gold Border */
    --shadow: 0 4px 6px rgba(212, 175, 55, 0.1);
    --shadow-hover: 0 8px 16px rgba(212, 175, 55, 0.15);
    --radius: 12px;
    --radius-small: 8px;
    --transition: all 0.3s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    font-size: 14px;
    line-height: 1.6;
    color: var(--text-primary);
    background: var(--bg-primary);
}

/* ========================================
   Typography
======================================== */
h1, h2, h3, h4, h5, h6 {
    font-weight: 600;
    color: var(--text-primary);
    margin: 0;
    padding: 0;
}

h1 { font-size: 28px; }
h2 { font-size: 22px; }
h3 { font-size: 18px; }
h4 { font-size: 15px; }
h5, h6 { font-size: 13px; }

.entry-title,
.question-title {
    font-size: 13px !important;
    font-weight: 500;
    color: var(--text-primary);
    margin: 0;
    padding: 0;
    line-height: 1.4;
}

a {
    color: var(--gold-dark);
    text-decoration: none;
    transition: var(--transition);
}

a:hover {
    color: var(--gold-primary);
}

/* ========================================
   Header - Golden Luxury
======================================== */
.site-header {
    background: linear-gradient(135deg, var(--gold-primary) 0%, var(--gold-light) 100%);
    backdrop-filter: blur(10px);
    border-bottom: 2px solid var(--gold-muted);
    position: sticky;
    top: 0;
    z-index: 1000;
    box-shadow: 0 2px 10px rgba(212, 175, 55, 0.2);
}

.header-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 12px 20px;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.site-branding {
    display: flex;
    align-items: center;
    gap: 10px;
}

.site-logo {
    font-size: 22px;
    font-weight: 700;
    color: var(--text-primary);
    text-shadow: 1px 1px 2px rgba(255, 255, 255, 0.5);
}

.header-actions {
    display: flex;
    gap: 12px;
    align-items: center;
}

.btn-ask-question,
.btn-login {
    padding: 8px 18px;
    border-radius: var(--radius-small);
    font-size: 13px;
    font-weight: 500;
    cursor: pointer;
    transition: var(--transition);
    border: none;
}

.btn-ask-question {
    background: var(--gold-shine);
    color: var(--text-primary);
    box-shadow: 0 2px 5px rgba(212, 175, 55, 0.3);
}

.btn-ask-question:hover {
    background: var(--gold-primary);
    transform: translateY(-2px);
    box-shadow: 0 4px 10px rgba(212, 175, 55, 0.4);
}

.btn-login {
    background: rgba(255, 255, 255, 0.9);
    color: var(--gold-dark);
    border: 1px solid var(--gold-light);
}

.btn-login:hover {
    background: var(--bg-accent);
    border-color: var(--gold-primary);
}

/* ========================================
   Search Bar - Golden
======================================== */
.search-section {
    background: linear-gradient(180deg, var(--bg-accent) 0%, var(--bg-secondary) 100%);
    padding: 20px 0;
    border-bottom: 1px solid var(--border-color);
}

.search-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

.search-form {
    position: relative;
}

.search-input {
    width: 100%;
    padding: 14px 20px;
    padding-left: 45px;
    border: 2px solid var(--gold-light);
    border-radius: var(--radius);
    font-size: 15px;
    background: white;
    transition: var(--transition);
}

.search-input:focus {
    outline: none;
    border-color: var(--gold-primary);
    box-shadow: 0 0 0 3px rgba(212, 175, 55, 0.1);
}

.search-icon {
    position: absolute;
    left: 15px;
    top: 50%;
    transform: translateY(-50%);
    color: var(--gold-muted);
}

/* ========================================
   Main Layout
======================================== */
.site-container {
    max-width: 1400px;
    margin: 30px auto;
    padding: 0 20px;
}

.site-content {
    display: grid;
    grid-template-columns: 7.5fr 2.5fr;
    gap: 25px;
}

/* ========================================
   Category Boxes - Golden Luxury
======================================== */
.category-box {
    background: white;
    border-radius: var(--radius);
    padding: 18px;
    margin-bottom: 12px;
    box-shadow: var(--shadow);
    border: 1px solid var(--border-color);
    transition: var(--transition);
    position: relative;
}

.category-box:hover {
    box-shadow: var(--shadow-hover);
    transform: translateY(-1px);
}

/* Separator between category boxes */
.category-box:not(:last-child):after {
    content: '';
    position: absolute;
    bottom: -7px;
    left: 20%;
    right: 20%;
    height: 2px;
    background: linear-gradient(90deg, transparent, var(--gold-light), transparent);
}

/* Single category header */
.category-header-single {
    margin-bottom: 15px;
}

.category-item-header {
    display: flex;
    align-items: center;
    gap: 15px;
    padding: 12px;
    background: linear-gradient(135deg, var(--gold-light) 0%, var(--bg-accent) 100%);
    border-radius: var(--radius-small);
    cursor: pointer;
    transition: var(--transition);
    border: 1px solid var(--gold-light);
}

.category-item-header:hover {
    background: linear-gradient(135deg, var(--gold-primary) 0%, var(--gold-light) 100%);
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(212, 175, 55, 0.2);
}

.category-info {
    flex: 1;
}

.category-posts-container {
    padding: 0 5px;
}

.category-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 15px;
    margin-bottom: 15px;
}

.category-item {
    background: linear-gradient(135deg, var(--gold-light) 0%, var(--bg-accent) 100%);
    border-radius: var(--radius-small);
    padding: 12px;
    text-align: center;
    transition: var(--transition);
    cursor: pointer;
    border: 1px solid var(--gold-light);
}

.category-item:hover {
    background: linear-gradient(135deg, var(--gold-primary) 0%, var(--gold-light) 100%);
    transform: translateY(-3px);
    box-shadow: 0 5px 15px rgba(212, 175, 55, 0.2);
}

.category-icon {
    font-size: 36px;
    margin-bottom: 10px;
    filter: drop-shadow(0 2px 4px rgba(212, 175, 55, 0.3));
}

.category-name {
    font-size: 14px;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 5px;
}

.category-count {
    font-size: 12px;
    color: var(--text-secondary);
}

/* Questions List - 2 Columns */
.questions-list {
    list-style: none;
    padding: 0;
    margin: 0;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 15px;
}

.question-item {
    padding: 10px 12px;
    border-bottom: 1px solid var(--border-color);
    display: flex;
    align-items: center;
    gap: 10px;
    transition: var(--transition);
}

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

.question-item:hover {
    background: var(--bg-accent);
    padding-left: 18px;
}

.question-item.popular {
    background: linear-gradient(90deg, rgba(212, 175, 55, 0.1) 0%, transparent 100%);
    border-left: 3px solid var(--gold-primary);
}

.fire-icon {
    color: #ff6b35;
    font-size: 14px;
    animation: glow 2s ease-in-out infinite;
}

@keyframes glow {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.7; filter: brightness(1.2); }
}

.question-title {
    flex: 1;
    color: var(--text-primary);
}

.question-title:hover {
    color: var(--gold-dark);
}

.view-count {
    font-size: 11px;
    color: var(--gold-dark);
    background: var(--gold-light);
    padding: 2px 8px;
    border-radius: 10px;
    font-weight: 500;
}

/* ========================================
   Sidebar - Golden Style
======================================== */
.sidebar {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.widget {
    background: white;
    border-radius: var(--radius);
    padding: 18px;
    box-shadow: var(--shadow);
    border: 1px solid var(--border-color);
}

.widget-title {
    font-size: 14px;
    font-weight: 600;
    margin-bottom: 12px;
    padding-bottom: 8px;
    border-bottom: 2px solid var(--gold-light);
    color: var(--gold-dark);
}

.widget ul {
    list-style: none;
    padding: 0;
    margin: 0;
}

.widget li {
    padding: 8px 0;
    font-size: 13px;
    border-bottom: 1px solid var(--bg-accent);
}

.widget li:last-child {
    border-bottom: none;
}

.widget li:hover {
    padding-left: 8px;
    background: var(--bg-accent);
}

/* Tags */
.tag-cloud {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-top: 10px;
}

.tag {
    background: linear-gradient(135deg, var(--gold-light) 0%, var(--bg-accent) 100%);
    padding: 4px 12px;
    border-radius: 15px;
    font-size: 12px;
    color: var(--text-secondary);
    border: 1px solid var(--gold-light);
    transition: var(--transition);
}

.tag:hover {
    background: var(--gold-primary);
    color: white;
    transform: scale(1.05);
}

/* Visitor Counter */
.visitor-count {
    text-align: center;
    padding: 15px;
    background: linear-gradient(135deg, var(--gold-primary) 0%, var(--gold-dark) 100%);
    color: white;
    border-radius: var(--radius-small);
    box-shadow: 0 4px 10px rgba(212, 175, 55, 0.3);
}

.visitor-number {
    font-size: 28px;
    font-weight: 700;
    text-shadow: 1px 1px 2px rgba(0, 0, 0, 0.2);
}

.visitor-text {
    font-size: 12px;
    opacity: 0.95;
}

/* ========================================
   Footer - Golden
======================================== */
.site-footer {
    background: linear-gradient(135deg, var(--text-primary) 0%, #3a3022 100%);
    color: var(--gold-light);
    margin-top: 50px;
    padding: 40px 0 20px;
}

.footer-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

.footer-columns {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: 40px;
    margin-bottom: 30px;
}

.footer-column h4 {
    font-size: 15px;
    font-weight: 600;
    margin-bottom: 12px;
    color: var(--gold-primary);
}

.footer-column ul {
    list-style: none;
    padding: 0;
    margin: 0;
}

.footer-column li {
    margin-bottom: 8px;
}

.footer-column a {
    color: var(--gold-light);
    font-size: 13px;
}

.footer-column a:hover {
    color: var(--gold-shine);
}

.footer-about {
    color: var(--gold-light);
    font-size: 13px;
    line-height: 1.6;
}

.footer-bottom {
    text-align: center;
    padding-top: 20px;
    border-top: 1px solid rgba(212, 175, 55, 0.3);
    color: var(--gold-muted);
    font-size: 12px;
}

/* Hide author info */
.by-author,
.author,
.posted-by,
.entry-author,
.author-info,
.author-bio {
    display: none !important;
}

/* Archive Header */
.archive-header {
    background: linear-gradient(135deg, var(--gold-primary) 0%, var(--gold-light) 100%);
    padding: 25px;
    border-radius: var(--radius);
    margin-bottom: 25px;
    text-align: center;
}

.archive-title {
    color: var(--text-primary);
    font-size: 24px;
    margin-bottom: 10px;
}

.archive-description {
    color: var(--text-secondary);
    font-size: 14px;
    margin-bottom: 10px;
}

.page-title {
    color: var(--gold-dark);
    font-size: 22px;
    margin-bottom: 20px;
    padding-bottom: 10px;
    border-bottom: 2px solid var(--gold-light);
}

/* Single Post Styles */
.single-post-box {
    background: white;
    border-radius: var(--radius);
    padding: 30px;
    box-shadow: var(--shadow);
    margin-bottom: 20px;
}

.single-title {
    font-size: 28px !important;
    font-weight: 700 !important;
    color: var(--gold-dark);
    margin-bottom: 20px !important;
    line-height: 1.3 !important;
}

.single-question .entry-meta {
    display: flex;
    gap: 20px;
    flex-wrap: wrap;
    padding: 15px;
    background: var(--bg-accent);
    border-radius: var(--radius-small);
    margin-bottom: 25px;
    font-size: 13px;
    color: var(--text-secondary);
}

.single-question .entry-content {
    font-size: 15px;
    line-height: 1.8;
    color: var(--text-primary);
}

.single-question .entry-content h2 {
    color: var(--gold-dark);
    margin: 25px 0 15px;
    font-size: 20px;
}

.single-question .entry-content h3 {
    color: var(--gold-dark);
    margin: 20px 0 10px;
    font-size: 18px;
}

/* Post Navigation - 2 Columns */
.post-navigation-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
    margin: 30px 0;
    padding: 20px;
    background: white;
    border-radius: var(--radius);
    box-shadow: var(--shadow);
}

.nav-previous,
.nav-next {
    padding: 15px;
    background: var(--bg-accent);
    border-radius: var(--radius-small);
}

.nav-previous {
    text-align: left;
    border-left: 3px solid var(--gold-primary);
}

.nav-next {
    text-align: right;
    border-right: 3px solid var(--gold-primary);
}

.nav-label {
    display: block;
    font-size: 12px;
    color: var(--gold-muted);
    margin-bottom: 5px;
    font-weight: 600;
    text-transform: uppercase;
}

.post-navigation-grid a {
    color: var(--text-primary);
    font-size: 14px;
    font-weight: 500;
    display: block;
}

.post-navigation-grid a:hover {
    color: var(--gold-dark);
}

.nav-disabled {
    color: var(--text-light);
    font-size: 13px;
    font-style: italic;
}

/* Homepage Category Box Improvements */
.category-box {
    background: white;
    border-radius: var(--radius);
    padding: 0;
    margin-bottom: 25px;
    box-shadow: var(--shadow);
    border: 1px solid var(--border-color);
    overflow: hidden;
}

.category-box .category-grid {
    background: linear-gradient(135deg, var(--gold-light) 0%, var(--bg-accent) 100%);
    padding: 20px;
    margin: 0;
    border-bottom: 2px solid var(--gold-primary);
}

.category-box .questions-list {
    background: white;
    padding: 15px 20px;
    margin: 0;
}

.category-box .question-item {
    background: var(--bg-primary);
    margin-bottom: 8px;
    border-radius: var(--radius-small);
    border-left: 2px solid transparent;
}

.category-box .question-item:hover {
    border-left-color: var(--gold-primary);
    background: var(--bg-accent);
}

/* Posts Grid Container - 2 Columns */
.posts-grid-container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 15px;
    padding: 15px;
    background: white;
}

.category-posts-column {
    display: flex;
    flex-direction: column;
}

.column-title {
    font-size: 13px;
    font-weight: 600;
    color: var(--gold-dark);
    margin-bottom: 12px;
    padding-bottom: 8px;
    border-bottom: 2px solid var(--gold-light);
}

.column-posts {
    list-style: none;
    padding: 0;
    margin: 0;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 10px;
}

.column-posts .question-item {
    padding: 6px 8px;
    background: var(--bg-primary);
    border-radius: var(--radius-small);
    border-left: 2px solid transparent;
    display: flex;
    align-items: center;
    gap: 6px;
    margin: 0;
    transition: var(--transition);
}

.column-posts .question-item:hover {
    border-left-color: var(--gold-primary);
    background: var(--bg-accent);
    padding-left: 14px;
}

.column-posts .question-item.popular {
    background: linear-gradient(90deg, rgba(212, 175, 55, 0.1) 0%, var(--bg-primary) 100%);
    border-left: 2px solid var(--gold-primary);
}

.column-posts .question-title {
    flex: 1;
    font-size: 12px;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.column-posts .view-count {
    font-size: 10px;
    white-space: nowrap;
}

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

/* Small desktop (máy tính nhỏ) */
@media (max-width: 1024px) {
    .site-container {
        max-width: 100%;
        padding: 0 15px;
    }
    
    .site-content {
        grid-template-columns: 1fr;
        gap: 20px;
    }
    
    .category-box {
        padding: 15px;
    }
}

/* Tablet */
@media (max-width: 768px) {
    .site-content {
        grid-template-columns: 1fr;
    }
    
    .category-grid {
        grid-template-columns: 1fr;
        gap: 10px;
    }
    
    .posts-grid-container {
        grid-template-columns: 1fr !important;
        gap: 15px;
    }
    
    .questions-list {
        grid-template-columns: 1fr;
    }
    
    .column-posts {
        grid-template-columns: 1fr;
    }
    
    .post-navigation-grid {
        grid-template-columns: 1fr;
        gap: 10px;
    }
    
    .footer-columns {
        grid-template-columns: 1fr;
        gap: 20px;
    }
    
    .category-item {
        padding: 12px;
    }
    
    .column-title {
        font-size: 14px;
    }
}

/* Mobile */
@media (max-width: 480px) {
    body {
        font-size: 13px;
    }
    
    .site-container {
        padding: 0 10px;
    }
    
    .search-input {
        font-size: 14px;
        padding: 10px 40px;
    }
    
    .category-box {
        padding: 12px;
        margin-bottom: 20px;
    }
    
    .category-header-single {
        margin-bottom: 10px;
    }
    
    .category-item-header {
        padding: 10px;
        gap: 10px;
    }
    
    .category-posts-container {
        padding: 0;
    }
    
    .column-posts {
        grid-template-columns: 1fr !important;
        gap: 6px;
    }
    
    .category-grid {
        grid-template-columns: 1fr !important;
        gap: 8px;
    }
    
    .category-item {
        display: flex;
        align-items: center;
        gap: 10px;
        padding: 10px;
    }
    
    .category-icon {
        font-size: 20px;
    }
    
    .category-name {
        font-size: 13px;
        flex: 1;
    }
    
    .category-count {
        font-size: 11px;
    }
    
    .posts-grid-container {
        grid-template-columns: 1fr !important;
        gap: 10px;
    }
    
    .column-title {
        font-size: 13px;
        padding-bottom: 6px;
    }
    
    .column-posts .question-item {
        padding: 8px;
    }
    
    .column-posts .question-title {
        font-size: 12px;
        display: -webkit-box;
        -webkit-line-clamp: 2;
        -webkit-box-orient: vertical;
        overflow: hidden;
        white-space: normal;
        line-height: 1.4;
    }
    
    .column-posts .view-count {
        font-size: 9px;
    }
    
    .btn-ask-question,
    .btn-login {
        font-size: 11px;
        padding: 6px 10px;
    }
    
    h1 { font-size: 22px; }
    h2 { font-size: 18px; }
    h3 { font-size: 15px; }
    
    /* Sidebar mobile */
    .sidebar {
        margin-top: 20px;
    }
}

/* Very small devices (300px width) */
@media (max-width: 360px) {
    .site-container {
        padding: 0 8px;
    }
    
    .header-container {
        padding: 8px;
    }
    
    .site-logo {
        font-size: 16px;
    }
    
    .btn-ask-question {
        display: none; /* Hide on very small screens */
    }
    
    .search-input {
        font-size: 13px;
        padding: 8px 35px;
    }
    
    .category-box {
        padding: 10px;
    }
    
    .category-item {
        padding: 8px;
    }
    
    .column-posts .question-title {
        font-size: 11px;
    }
}

/* Remove all unwanted borders */
* {
    border: none;
}

/* Only add specific borders where needed */
.search-input,
.btn-login,
.category-box,
.category-item,
.widget,
.tag {
    border-width: 1px;
    border-style: solid;
}

/* ========================================
   Custom Category Colors & Title Styling
======================================== */

/* Title styling - 2 lines with proper height */
.question-title {
    display: -webkit-box !important;
    -webkit-line-clamp: 2 !important;
    -webkit-box-orient: vertical !important;
    overflow: hidden !important;
    text-overflow: ellipsis !important;
    line-height: 1.25 !important;
    min-height: 2.5em !important;
    max-height: 2.5em !important;
    word-wrap: break-word !important;
    font-size: 13px !important;
}

/* High view posts styling */
.question-item.high-view {
    background: linear-gradient(90deg, rgba(184, 150, 10, 0.05) 0%, transparent 100%);
    border-left: 2px solid #B8960A;
}

.high-view-title {
    color: #8B6914 !important; /* Dark gold/yellow */
    font-weight: 600 !important;
}

.high-view-title:hover {
    color: #B8960A !important;
}

/* Category specific colors */
.category-cai-van-sinh-co {
    border-left: 4px solid #FF6B6B !important;
}
.category-cai-van-sinh-co .category-name,
.category-cai-van-sinh-co .category-icon {
    color: #FF6B6B !important;
}

.category-san-pham-linh-phu {
    border-left: 4px solid #4ECDC4 !important;
}
.category-san-pham-linh-phu .category-name,
.category-san-pham-linh-phu .category-icon {
    color: #4ECDC4 !important;
}

.category-hoc-phong-thuy {
    border-left: 4px solid #45B7D1 !important;
}
.category-hoc-phong-thuy .category-name,
.category-hoc-phong-thuy .category-icon {
    color: #45B7D1 !important;
}

.category-cai-dat-tai-khoan {
    border-left: 4px solid #96CEB4 !important;
}
.category-cai-dat-tai-khoan .category-name,
.category-cai-dat-tai-khoan .category-icon {
    color: #96CEB4 !important;
}

.category-dieu-khoan {
    border-left: 4px solid #FFEAA7 !important;
}
.category-dieu-khoan .category-name,
.category-dieu-khoan .category-icon {
    color: #DDA520 !important;
}

.category-code-web {
    border-left: 4px solid #DDA0DD !important;
}
.category-code-web .category-name,
.category-code-web .category-icon {
    color: #DDA0DD !important;
}