/**
 * XenForo Style CSS Framework
 * Acar Forum - XenForo Benzeri Tasarım Sistemi
 * Geliştirici: Ghosty RACK
 */

/* ============================================
   CSS VARIABLES - XenForo Color Palette
   ============================================ */
:root {
    /* Primary Colors */
    --xf-primary: #2b5797;
    --xf-primary-hover: #1f4470;
    --xf-primary-dark: #1a3555;
    --xf-accent: #e04f5f;
    --xf-accent-hover: #c93d4d;

    /* Background Colors */
    --xf-page-bg: #e8edf2;
    --xf-content-bg: #ffffff;
    --xf-alt-bg: #f7f9fa;
    --xf-sidebar-bg: #f7f9fa;
    --xf-header-bg: #2b5797;

    /* Text Colors */
    --xf-text-primary: #20262c;
    --xf-text-secondary: #6a7c8c;
    --xf-text-muted: #8a9199;
    --xf-text-light: #ffffff;

    /* Border Colors */
    --xf-border: #d4dce3;
    --xf-border-hover: #b8c5d0;
    --xf-border-light: #e8edf2;

    /* Status Colors */
    --xf-success: #4caf50;
    --xf-warning: #ff9800;
    --xf-error: #f44336;
    --xf-info: #2196f3;

    /* Node Colors */
    --xf-node-unread: #fff8e1;
    --xf-node-read: transparent;

    /* Spacing */
    --xf-spacing-xs: 4px;
    --xf-spacing-sm: 8px;
    --xf-spacing-md: 12px;
    --xf-spacing-lg: 16px;
    --xf-spacing-xl: 24px;
    --xf-spacing-xxl: 32px;

    /* Border Radius */
    --xf-radius-sm: 3px;
    --xf-radius-md: 5px;
    --xf-radius-lg: 8px;

    /* Shadows */
    --xf-shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.08);
    --xf-shadow-md: 0 2px 6px rgba(0, 0, 0, 0.1);
    --xf-shadow-lg: 0 4px 12px rgba(0, 0, 0, 0.15);

    /* Typography */
    --xf-font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Oxygen-Sans, Ubuntu, Cantarell, "Helvetica Neue", sans-serif;
    --xf-font-size-base: 14px;
    --xf-font-size-sm: 13px;
    --xf-font-size-lg: 16px;
    --xf-line-height: 1.5;
}

/* ============================================
   GLOBAL RESET & BASE STYLES
   ============================================ */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: var(--xf-font-family);
    font-size: var(--xf-font-size-base);
    line-height: var(--xf-line-height);
    color: var(--xf-text-primary);
    background: var(--xf-page-bg);
    min-height: 100vh;
}

/* ============================================
   LAYOUT STRUCTURE
   ============================================ */
.xf-container {
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 var(--xf-spacing-lg);
}

.xf-layout {
    display: grid;
    grid-template-columns: 1fr 280px;
    gap: var(--xf-spacing-xl);
    margin-top: var(--xf-spacing-lg);
}

@media (max-width: 900px) {
    .xf-layout {
        grid-template-columns: 1fr;
    }
}

/* ============================================
   HEADER
   ============================================ */
.xf-header {
    background: var(--xf-header-bg);
    color: var(--xf-text-light);
    box-shadow: var(--xf-shadow-md);
    position: sticky;
    top: 0;
    z-index: 1000;
}

.xf-header-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--xf-spacing-md) 0;
}

.xf-logo {
    display: flex;
    align-items: center;
    gap: 12px;
    font-size: 24px;
    font-weight: 700;
    color: #fff;
    text-decoration: none;
    transition: all 0.3s ease;
    letter-spacing: 1px;
    text-transform: uppercase;
    font-family: 'Segoe UI', 'Arial', sans-serif;
}

.xf-logo i {
    font-size: 28px;
    color: #ff6b35;
    filter: drop-shadow(0 2px 4px rgba(255, 107, 53, 0.4));
    animation: logoPulse 2s ease-in-out infinite;
}

.xf-logo img {
    max-height: 40px;
    width: auto;
}

@keyframes logoPulse {

    0%,
    100% {
        transform: scale(1);
    }

    50% {
        transform: scale(1.05);
    }
}

.xf-nav {
    display: flex;
    gap: var(--xf-spacing-lg);
    align-items: center;
}

.xf-nav a {
    color: rgba(255, 255, 255, 0.9);
    text-decoration: none;
    padding: var(--xf-spacing-sm) var(--xf-spacing-md);
    border-radius: var(--xf-radius-sm);
    transition: all 0.2s;
}

.xf-nav a:hover {
    background: rgba(255, 255, 255, 0.1);
    color: var(--xf-text-light);
}

/* ============================================
   BREADCRUMB
   ============================================ */
.xf-breadcrumb {
    background: var(--xf-content-bg);
    padding: var(--xf-spacing-md) var(--xf-spacing-lg);
    border-bottom: 1px solid var(--xf-border);
    font-size: var(--xf-font-size-sm);
}

.xf-breadcrumb-list {
    display: flex;
    align-items: center;
    gap: var(--xf-spacing-sm);
    list-style: none;
    flex-wrap: wrap;
}

.xf-breadcrumb-item {
    display: flex;
    align-items: center;
    gap: var(--xf-spacing-sm);
}

.xf-breadcrumb-item:not(:last-child)::after {
    content: "›";
    color: var(--xf-text-muted);
}

.xf-breadcrumb-link {
    color: var(--xf-text-secondary);
    text-decoration: none;
}

.xf-breadcrumb-link:hover {
    color: var(--xf-primary);
    text-decoration: underline;
}

/* ============================================
   CARDS & BLOCKS
   ============================================ */
.xf-block {
    background: var(--xf-content-bg);
    border: 1px solid var(--xf-border);
    border-radius: var(--xf-radius-md);
    margin-bottom: var(--xf-spacing-lg);
    overflow: hidden;
}

.xf-block-header {
    padding: var(--xf-spacing-lg);
    border-bottom: 1px solid var(--xf-border);
    background: var(--xf-alt-bg);
}

.xf-block-title {
    font-size: var(--xf-font-size-lg);
    font-weight: 600;
    color: var(--xf-text-primary);
    display: flex;
    align-items: center;
    gap: var(--xf-spacing-sm);
}

.xf-block-body {
    padding: var(--xf-spacing-lg);
}

.xf-block-footer {
    padding: var(--xf-spacing-md) var(--xf-spacing-lg);
    border-top: 1px solid var(--xf-border);
    background: var(--xf-alt-bg);
    font-size: var(--xf-font-size-sm);
    color: var(--xf-text-secondary);
}

/* ============================================
   BUTTONS
   ============================================ */
.xf-btn {
    display: inline-flex;
    align-items: center;
    gap: var(--xf-spacing-sm);
    padding: var(--xf-spacing-sm) var(--xf-spacing-lg);
    font-size: var(--xf-font-size-base);
    font-weight: 500;
    text-decoration: none;
    border: none;
    border-radius: var(--xf-radius-sm);
    cursor: pointer;
    transition: all 0.2s;
    white-space: nowrap;
}

.xf-btn-primary {
    background: var(--xf-primary);
    color: var(--xf-text-light);
}

.xf-btn-primary:hover {
    background: var(--xf-primary-hover);
    transform: translateY(-1px);
    box-shadow: var(--xf-shadow-sm);
}

.xf-btn-secondary {
    background: var(--xf-alt-bg);
    color: var(--xf-text-primary);
    border: 1px solid var(--xf-border);
}

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

.xf-btn-sm {
    padding: 6px 12px;
    font-size: var(--xf-font-size-sm);
}

/* ============================================
   NODE LIST (Category/Forum List)
   ============================================ */
.xf-node-list {
    list-style: none;
}

.xf-node-item {
    background: var(--xf-content-bg);
    border: 1px solid var(--xf-border);
    border-radius: var(--xf-radius-md);
    margin-bottom: var(--xf-spacing-md);
    transition: all 0.2s;
}

.xf-node-item:hover {
    border-color: var(--xf-primary);
    box-shadow: var(--xf-shadow-sm);
}

.xf-node-link {
    display: grid;
    grid-template-columns: 60px 1fr auto;
    gap: var(--xf-spacing-lg);
    padding: var(--xf-spacing-lg);
    text-decoration: none;
    color: inherit;
    align-items: center;
}

.xf-node-icon {
    width: 60px;
    height: 60px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--xf-primary);
    color: var(--xf-text-light);
    border-radius: var(--xf-radius-lg);
    font-size: 28px;
}

.xf-node-main {
    flex: 1;
}

.xf-node-title {
    font-size: var(--xf-font-size-lg);
    font-weight: 600;
    color: var(--xf-text-primary);
    margin-bottom: var(--xf-spacing-xs);
}

.xf-node-description {
    font-size: var(--xf-font-size-sm);
    color: var(--xf-text-secondary);
    line-height: 1.4;
}

.xf-node-stats {
    text-align: right;
    font-size: var(--xf-font-size-sm);
    color: var(--xf-text-secondary);
}

.xf-node-stat-value {
    font-weight: 600;
    color: var(--xf-text-primary);
    display: block;
}

/* ============================================
   SIDEBAR
   ============================================ */
.xf-sidebar {
    display: flex;
    flex-direction: column;
    gap: var(--xf-spacing-lg);
}

.xf-sidebar-block {
    background: var(--xf-sidebar-bg);
    border: 1px solid var(--xf-border);
    border-radius: var(--xf-radius-md);
    padding: var(--xf-spacing-lg);
}

.xf-sidebar-title {
    font-size: var(--xf-font-size-base);
    font-weight: 600;
    margin-bottom: var(--xf-spacing-md);
    color: var(--xf-text-primary);
}

/* ============================================
   FOOTER
   ============================================ */
.xf-footer {
    background: var(--xf-content-bg);
    border-top: 1px solid var(--xf-border);
    padding: var(--xf-spacing-xl) 0;
    margin-top: var(--xf-spacing-xxl);
    text-align: center;
    color: var(--xf-text-secondary);
    font-size: var(--xf-font-size-sm);
}

.xf-footer-credit {
    margin-top: var(--xf-spacing-sm);
    color: var(--xf-primary);
}

/* ============================================
   UTILITY CLASSES
   ============================================ */
.xf-text-muted {
    color: var(--xf-text-muted);
}

.xf-text-secondary {
    color: var(--xf-text-secondary);
}

.xf-mt-lg {
    margin-top: var(--xf-spacing-lg);
}

.xf-mb-lg {
    margin-bottom: var(--xf-spacing-lg);
}

/* ============================================
   BANNER AD
   ============================================ */
.xf-banner-ad {
    width: 100%;
    margin: var(--xf-spacing-xl) 0;
    background: var(--xf-content-bg);
    border: 2px solid var(--xf-border);
    border-radius: var(--xf-radius-md);
    overflow: hidden;
}

.xf-banner-label {
    text-align: center;
    padding: 6px;
    background: var(--xf-primary);
    color: white;
    font-weight: 600;
    font-size: 11px;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.xf-banner-ad a {
    display: block;
    text-decoration: none;
}

.xf-banner-placeholder {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--xf-spacing-md);
    color: var(--xf-text-muted);
    font-size: var(--xf-font-size-sm);
    font-weight: 500;
    padding: var(--xf-spacing-xl);
    min-height: 90px;
}

.xf-banner-placeholder i {
    font-size: 24px;
    color: var(--xf-text-secondary);
}

.xf-banner-ad img {
    width: 100%;
    height: auto;
    display: block;
}

@media (max-width: 768px) {
    .xf-banner-ad {
        max-width: 100%;
        margin: var(--xf-spacing-md) 0;
    }

    .xf-banner-label {
        font-size: 10px;
        padding: 5px;
    }

    .xf-banner-ad img {
        width: 100%;
        height: auto;
    }
}
/* ============================================
   MOBILE RESPONSIVE - COMPREHENSIVE
   ============================================ */

/* Tablet and below */
@media (max-width: 1024px) {
    .xf-container {
        padding: 0 16px;
    }
    
    .xf-layout {
        grid-template-columns: 1fr;
        gap: var(--xf-spacing-lg);
    }
    
    .xf-sidebar {
        order: 2;
    }
    
    .xf-main {
        order: 1;
    }
}

/* Mobile - Main breakpoint */
@media (max-width: 768px) {
    /* Container */
    .xf-container {
        padding: 0 12px;
    }
    
    /* Header */
    .xf-header {
        padding: 12px 0;
    }
    
    .xf-header-content {
        flex-direction: column;
        gap: 12px;
        align-items: flex-start;
    }
    
    .xf-logo {
        font-size: 18px;
        gap: 8px;
    }
    
    .xf-logo i {
        font-size: 20px;
    }
    
    .xf-logo img {
        max-height: 30px;
    }
    
    /* Navigation */
    .xf-nav {
        width: 100%;
        flex-wrap: wrap;
        gap: 8px;
    }
    
    .xf-nav a {
        font-size: 13px;
        padding: 6px 12px;
    }
    
    /* User menu */
    .xf-user-menu {
        position: relative;
        width: 100%;
    }
    
    .xf-user-dropdown {
        left: 0;
        right: 0;
        width: 100%;
    }
    
    /* Layout */
    .xf-layout {
        grid-template-columns: 1fr;
        gap: var(--xf-spacing-md);
    }
    
    /* Categories */
    .xf-category-grid {
        grid-template-columns: 1fr;
    }
    
    .xf-category-card {
        padding: 16px;
    }
    
    .xf-category-name {
        font-size: 16px;
    }
    
    .xf-category-desc {
        font-size: 13px;
    }
    
    /* Topics */
    .xf-topic-item {
        padding: 12px;
    }
    
    .xf-topic-title {
        font-size: 15px;
    }
    
    .xf-topic-meta {
        flex-wrap: wrap;
        gap: 8px;
        font-size: 12px;
    }
    
    /* Posts */
    .xf-post {
        grid-template-columns: 1fr;
        padding: 12px;
    }
    
    .xf-post-author {
        display: flex;
        flex-direction: row;
        align-items: center;
        gap: 12px;
        padding-bottom: 12px;
        border-bottom: 1px solid var(--xf-border);
        margin-bottom: 12px;
    }
    
    .xf-post-avatar {
        width: 40px;
        height: 40px;
    }
    
    .xf-post-username {
        font-size: 14px;
    }
    
    .xf-post-content {
        font-size: 14px;
        line-height: 1.6;
    }
    
    /* Forms */
    .xf-form-group {
        padding: 16px;
    }
    
    .xf-input,
    .xf-textarea,
    .xf-select {
        font-size: 16px;
    }
    
    .xf-btn {
        padding: 10px 20px;
        font-size: 14px;
    }
    
    /* Stats */
    .xf-stats-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 12px;
    }
    
    .xf-stat-card {
        padding: 16px;
    }
    
    .xf-stat-value {
        font-size: 24px;
    }
    
    .xf-stat-label {
        font-size: 12px;
    }
    
    /* Footer */
    .xf-footer {
        padding: 20px 0;
        font-size: 13px;
    }
    
    /* Blocks */
    .xf-block {
        margin-bottom: var(--xf-spacing-md);
    }
    
    .xf-block-header {
        padding: 12px 16px;
        font-size: 14px;
    }
    
    .xf-block-body {
        padding: 12px;
    }
    
    /* Tables */
    .xf-table {
        font-size: 13px;
    }
    
    .xf-table th,
    .xf-table td {
        padding: 8px;
    }
    
    /* Pagination */
    .xf-pagination {
        gap: 4px;
    }
    
    .xf-page-link {
        padding: 6px 10px;
        font-size: 13px;
    }
}

/* Small mobile */
@media (max-width: 480px) {
    .xf-container {
        padding: 0 8px;
    }
    
    .xf-logo {
        font-size: 16px;
    }
    
    .xf-nav a {
        font-size: 12px;
        padding: 6px 10px;
    }
    
    .xf-stats-grid {
        grid-template-columns: 1fr;
    }
    
    .xf-category-card {
        padding: 12px;
    }
    
    .xf-topic-item {
        padding: 10px;
    }
    
    .xf-post {
        padding: 10px;
    }
    
    .xf-btn {
        width: 100%;
        text-align: center;
    }
}

/* ============================================
   MOBILE HEADER - HAMBURGER MENU
   ============================================ */

/* Hamburger menu button - hidden by default */
.xf-mobile-menu-btn {
    display: none;
    background: none;
    border: none;
    color: var(--xf-text-primary);
    font-size: 24px;
    cursor: pointer;
    padding: 8px;
    margin-left: auto;
}

/* Mobile navigation overlay */
.xf-mobile-nav {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.8);
    z-index: 9999;
    opacity: 0;
    transition: opacity 0.3s ease;
}

.xf-mobile-nav.active {
    opacity: 1;
}

.xf-mobile-nav-content {
    position: absolute;
    top: 0;
    right: -280px;
    width: 280px;
    height: 100%;
    background: var(--xf-content-bg);
    box-shadow: -2px 0 10px rgba(0, 0, 0, 0.3);
    transition: right 0.3s ease;
    overflow-y: auto;
}

.xf-mobile-nav.active .xf-mobile-nav-content {
    right: 0;
}

.xf-mobile-nav-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 16px;
    border-bottom: 1px solid var(--xf-border);
    background: var(--xf-alt-bg);
}

.xf-mobile-nav-close {
    background: none;
    border: none;
    color: var(--xf-text-primary);
    font-size: 24px;
    cursor: pointer;
    padding: 8px;
}

.xf-mobile-nav-items {
    padding: 16px 0;
}

.xf-mobile-nav-items a {
    display: block;
    padding: 12px 20px;
    color: var(--xf-text-primary);
    text-decoration: none;
    border-bottom: 1px solid var(--xf-border);
    transition: background 0.2s ease;
}

.xf-mobile-nav-items a:hover {
    background: var(--xf-alt-bg);
}

.xf-mobile-nav-items a i {
    margin-right: 12px;
    width: 20px;
    text-align: center;
}

@media (max-width: 768px) {
    /* Show hamburger button */
    .xf-mobile-menu-btn {
        display: block;
    }
    
    /* Hide desktop navigation */
    .xf-nav {
        display: none !important;
    }
    
    /* Show mobile nav when needed */
    .xf-mobile-nav {
        display: block;
    }
    
    /* Adjust header for mobile */
    .xf-header-content {
        flex-direction: row;
        justify-content: space-between;
        align-items: center;
    }
    
    .xf-logo {
        flex: 1;
    }
}