/* Q&A Общество - Main Stylesheet */

/* ============================================
   CSS Variables
   ============================================ */
:root {
    --color-primary: #F26522;
    --color-primary-hover: #e0550f;
    --color-secondary: #6C5CE7;
    --color-success: #00b894;
    --color-warning: #fdcb6e;
    --color-danger: #e74c3c;
    --color-info: #74b9ff;

    --color-text: #2d3436;
    --color-text-light: #636e72;
    --color-text-muted: #b2bec3;

    --color-bg: #f8f9fa;
    --color-bg-white: #ffffff;
    --color-bg-light: #f1f3f5;

    --color-border: #dee2e6;
    --color-border-light: #e9ecef;

    --font-primary: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    --font-heading: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;

    --radius-sm: 4px;
    --radius-md: 8px;
    --radius-lg: 12px;
    --radius-xl: 16px;
    --radius-full: 9999px;

    --shadow-sm: 0 1px 3px rgba(0,0,0,0.08);
    --shadow-md: 0 4px 12px rgba(0,0,0,0.1);
    --shadow-lg: 0 8px 24px rgba(0,0,0,0.12);

    --transition: 0.2s ease;

    --container-max: 1200px;
    --sidebar-width: 320px;
    --header-height: 64px;
}

/* ============================================
   Reset & Base
   ============================================ */
*,
*::before,
*::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    font-size: 16px;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

body {
    font-family: var(--font-primary);
    color: var(--color-text);
    background-color: var(--color-bg);
    line-height: 1.6;
}

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

img {
    max-width: 100%;
    height: auto;
    display: block;
}

ul, ol {
    list-style: none;
}

/* ============================================
   Header
   ============================================ */
.site-header {
    position: sticky;
    top: 0;
    z-index: 1000;
    background: var(--color-bg-white);
    border-bottom: 1px solid var(--color-border-light);
    height: var(--header-height);
}

.header-container {
    max-width: var(--container-max);
    margin: 0 auto;
    padding: 0 20px;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 24px;
}

.site-branding {
    flex-shrink: 0;
}

.site-title-link {
    display: flex;
    align-items: center;
    gap: 10px;
    font-weight: 700;
    font-size: 18px;
    color: var(--color-text);
}

.site-title-text {
    white-space: nowrap;
}

.main-navigation {
    flex: 1;
    display: flex;
    justify-content: center;
}

.nav-menu {
    display: flex;
    align-items: center;
    gap: 8px;
}

.nav-menu li {
    position: relative;
}

.nav-menu a {
    display: block;
    padding: 8px 16px;
    font-size: 15px;
    font-weight: 500;
    color: var(--color-text);
    border-radius: var(--radius-md);
    transition: all var(--transition);
}

.nav-menu a:hover {
    color: var(--color-primary);
    background: rgba(242, 101, 34, 0.08);
}

.nav-menu .current-menu-item > a {
    color: var(--color-primary);
    background: rgba(242, 101, 34, 0.08);
}

.header-actions {
    flex-shrink: 0;
}

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 10px 24px;
    font-size: 14px;
    font-weight: 600;
    border-radius: var(--radius-full);
    border: none;
    cursor: pointer;
    transition: all var(--transition);
}

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

.btn-primary:hover {
    background: var(--color-primary-hover);
    transform: translateY(-1px);
}

.btn-login {
    background: var(--color-primary);
    color: #fff;
    padding: 8px 20px;
}

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

/* User Menu */
.user-menu {
    position: relative;
}

.user-menu-toggle {
    background: none;
    border: none;
    cursor: pointer;
    padding: 0;
    border-radius: 50%;
    overflow: hidden;
    transition: box-shadow var(--transition);
}

.user-menu-toggle:hover {
    box-shadow: 0 0 0 3px rgba(242, 101, 34, 0.2);
}

.user-avatar {
    border-radius: 50%;
    object-fit: cover;
}

.user-dropdown {
    position: absolute;
    top: calc(100% + 8px);
    right: 0;
    width: 240px;
    background: var(--color-bg-white);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
    border: 1px solid var(--color-border-light);
    opacity: 0;
    visibility: hidden;
    transform: translateY(-8px);
    transition: all var(--transition);
    z-index: 100;
}

.user-menu:hover .user-dropdown,
.user-dropdown:hover {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.user-dropdown-header {
    padding: 16px;
    border-bottom: 1px solid var(--color-border-light);
    display: flex;
    align-items: center;
    gap: 12px;
}

.user-dropdown-avatar {
    border-radius: 50%;
    flex-shrink: 0;
}

.user-dropdown-info {
    min-width: 0;
}

.user-dropdown-name {
    display: block;
    font-weight: 600;
    font-size: 14px;
    color: var(--color-text);
}

.user-dropdown-email {
    display: block;
    font-size: 12px;
    color: var(--color-text-light);
    overflow: hidden;
    text-overflow: ellipsis;
}

.user-dropdown-nav {
    padding: 8px;
}

.user-dropdown-nav a {
    display: block;
    padding: 8px 12px;
    font-size: 14px;
    color: var(--color-text);
    border-radius: var(--radius-md);
}

.user-dropdown-nav a:hover {
    background: var(--color-bg-light);
    color: var(--color-primary);
}

/* Mobile Menu Toggle */
.mobile-menu-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 8px;
}

.hamburger-line {
    width: 24px;
    height: 2px;
    background: var(--color-text);
    border-radius: 2px;
    transition: all var(--transition);
}

/* ============================================
   Main Content Layout
   ============================================ */
.site-main {
    max-width: var(--container-max);
    margin: 0 auto;
    padding: 32px 20px;
    display: grid;
    grid-template-columns: 1fr var(--sidebar-width);
    gap: 32px;
}

.content-area {
    min-width: 0;
}

/* ============================================
   Slider: Hot Topics
   ============================================ */
.hot-topics-section {
    margin-bottom: 32px;
}

.hot-topics-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 20px;
}

.hot-topics-title {
    font-size: 24px;
    font-weight: 700;
    color: var(--color-text);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.slider-controls {
    display: flex;
    gap: 8px;
}

.slider-btn {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    border: 2px solid var(--color-border);
    background: var(--color-bg-white);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all var(--transition);
}

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

.slider-track {
    display: flex;
    gap: 16px;
    overflow: hidden;
}

.slider-item {
    flex: 0 0 calc(33.333% - 11px);
    position: relative;
    border-radius: var(--radius-lg);
    overflow: hidden;
    aspect-ratio: 400/250;
}

.slider-item-image {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform var(--transition);
}

.slider-item:hover .slider-item-image {
    transform: scale(1.05);
}

.slider-item-overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(to top, rgba(0,0,0,0.8) 0%, rgba(0,0,0,0.2) 60%, transparent 100%);
    display: flex;
    flex-direction: column;
    justify-content: flex-end;
    padding: 20px;
}

.slider-item-badge {
    display: inline-block;
    padding: 4px 12px;
    background: var(--color-primary);
    color: #fff;
    font-size: 11px;
    font-weight: 600;
    border-radius: var(--radius-full);
    margin-bottom: 8px;
    width: fit-content;
    text-transform: uppercase;
}

.slider-item-title {
    font-size: 16px;
    font-weight: 700;
    color: #fff;
    line-height: 1.3;
    margin-bottom: 4px;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.slider-item-excerpt {
    font-size: 13px;
    color: rgba(255,255,255,0.8);
    line-height: 1.4;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

/* ============================================
   Content Grid
   ============================================ */
.content-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 20px;
}

.content-grid > nav.navigation {
    grid-column: 1 / -1;
}

/* Article Card */
.card {
    background: var(--color-bg-white);
    border-radius: var(--radius-lg);
    overflow: hidden;
    transition: all var(--transition);
    border: 1px solid var(--color-border-light);
}

.card:hover {
    box-shadow: var(--shadow-md);
    transform: translateY(-2px);
}

.card-image {
    position: relative;
    aspect-ratio: 400/250;
    overflow: hidden;
}

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

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

.card-body {
    padding: 16px;
}

.card-category {
    display: inline-block;
    padding: 4px 10px;
    background: var(--color-bg-light);
    color: var(--color-text-light);
    font-size: 11px;
    font-weight: 600;
    border-radius: var(--radius-full);
    margin-bottom: 10px;
    text-transform: uppercase;
}

.card-title {
    font-size: 16px;
    font-weight: 700;
    color: var(--color-text);
    line-height: 1.3;
    margin-bottom: 8px;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.card-title a:hover {
    color: var(--color-primary);
}

.card-excerpt {
    font-size: 13px;
    color: var(--color-text-light);
    line-height: 1.5;
    margin-bottom: 12px;
    display: -webkit-box;
    -webkit-line-clamp: 3;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.card-meta {
    display: flex;
    align-items: center;
    gap: 12px;
    font-size: 12px;
    color: var(--color-text-muted);
}

.card-meta-item {
    display: flex;
    align-items: center;
    gap: 4px;
}

.card-meta-icon {
    width: 16px;
    height: 16px;
    opacity: 0.6;
}

/* Question Card */
.card-question {
    position: relative;
}

.card-question .card-body {
    padding-top: 20px;
}

.question-badge {
    position: absolute;
    top: 16px;
    right: 16px;
    padding: 4px 12px;
    font-size: 11px;
    font-weight: 600;
    border-radius: var(--radius-full);
    text-transform: uppercase;
}

.badge-best {
    background: var(--color-success);
    color: #fff;
}

.badge-open {
    background: var(--color-info);
    color: #fff;
}

.badge-answered {
    background: var(--color-warning);
    color: var(--color-text);
}

.badge-closed {
    background: var(--color-text-muted);
    color: #fff;
}

.question-author {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 12px;
}

.question-author-avatar {
    width: 32px;
    height: 32px;
    border-radius: 50%;
    object-fit: cover;
}

.question-author-name {
    font-size: 13px;
    font-weight: 600;
    color: var(--color-text);
}

.question-author-rating {
    font-size: 12px;
    color: var(--color-text-muted);
}

.question-content {
    margin-bottom: 16px;
}

.question-title {
    font-size: 15px;
    font-weight: 700;
    color: var(--color-text);
    line-height: 1.3;
    margin-bottom: 6px;
}

.question-title a:hover {
    color: var(--color-primary);
}

.question-text {
    font-size: 13px;
    color: var(--color-text-light);
    line-height: 1.5;
    display: -webkit-box;
    -webkit-line-clamp: 3;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.question-footer {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding-top: 12px;
    border-top: 1px solid var(--color-border-light);
}

.question-votes {
    display: flex;
    align-items: center;
    gap: 12px;
}

.vote-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 32px;
    height: 32px;
    border-radius: var(--radius-md);
    border: 1px solid var(--color-border);
    background: var(--color-bg-white);
    cursor: pointer;
    transition: all var(--transition);
    font-size: 14px;
    color: var(--color-text-light);
}

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

.vote-btn.active {
    background: var(--color-primary);
    border-color: var(--color-primary);
    color: #fff;
}

.vote-count {
    font-size: 16px;
    font-weight: 700;
    color: var(--color-text);
    min-width: 24px;
    text-align: center;
}

.question-answers {
    display: flex;
    align-items: center;
    gap: 6px;
    font-size: 13px;
    color: var(--color-text-light);
}

.question-answers-icon {
    width: 18px;
    height: 18px;
    color: var(--color-text-muted);
}

.question-answers-count {
    font-weight: 600;
    color: var(--color-text);
}

/* ============================================
   Sidebar
   ============================================ */
.sidebar {
    display: flex;
    flex-direction: column;
    gap: 24px;
}

.widget {
    background: var(--color-bg-white);
    border-radius: var(--radius-lg);
    padding: 20px;
    border: 1px solid var(--color-border-light);
}

.widget-title {
    font-size: 16px;
    font-weight: 700;
    color: var(--color-text);
    margin-bottom: 16px;
    text-transform: uppercase;
    letter-spacing: 0.3px;
}

/* CTA Button Widget */
.widget-cta {
    background: linear-gradient(135deg, var(--color-primary) 0%, #ff7b3a 100%);
    border: none;
    text-align: center;
}

.widget-cta .btn-cta {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 14px 28px;
    background: #fff;
    color: var(--color-primary);
    font-size: 15px;
    font-weight: 700;
    border-radius: var(--radius-full);
    transition: all var(--transition);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.widget-cta .btn-cta:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0,0,0,0.2);
}

/* Active Discussions Widget */
.discussions-list {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.discussion-item {
    display: flex;
    gap: 10px;
    padding: 10px 0;
    border-bottom: 1px solid var(--color-border-light);
}

.discussion-item:last-child {
    border-bottom: none;
    padding-bottom: 0;
}

.discussion-item:first-child {
    padding-top: 0;
}

.discussion-avatar {
    width: 36px;
    height: 36px;
    border-radius: 50%;
    object-fit: cover;
    flex-shrink: 0;
}

.discussion-content {
    min-width: 0;
}

.discussion-title {
    font-size: 13px;
    font-weight: 600;
    color: var(--color-text);
    line-height: 1.3;
    margin-bottom: 4px;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.discussion-title a:hover {
    color: var(--color-primary);
}

.discussion-meta {
    font-size: 11px;
    color: var(--color-text-muted);
}

/* Top Experts Widget */
.experts-list {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.expert-item {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 8px 0;
}

.expert-avatar {
    width: 44px;
    height: 44px;
    border-radius: 50%;
    object-fit: cover;
    flex-shrink: 0;
    border: 2px solid var(--color-primary);
}

.expert-info {
    min-width: 0;
    flex: 1;
}

.expert-name {
    font-size: 14px;
    font-weight: 600;
    color: var(--color-text);
}

.expert-name a:hover {
    color: var(--color-primary);
}

.expert-rating {
    display: flex;
    align-items: center;
    gap: 4px;
    font-size: 12px;
    color: var(--color-text-muted);
}

.expert-stars {
    display: flex;
    gap: 1px;
    color: var(--color-warning);
}

/* ============================================
   Buttons
   ============================================ */
.btn-create-question {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    width: 100%;
    padding: 14px 24px;
    background: var(--color-primary);
    color: #fff;
    font-size: 15px;
    font-weight: 700;
    border-radius: var(--radius-full);
    border: none;
    cursor: pointer;
    transition: all var(--transition);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.btn-create-question:hover {
    background: var(--color-primary-hover);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(242, 101, 34, 0.3);
}

/* ============================================
   Footer
   ============================================ */
.site-footer {
    background: var(--color-bg-white);
    border-top: 1px solid var(--color-border-light);
    margin-top: 40px;
}

.footer-container {
    max-width: var(--container-max);
    margin: 0 auto;
    padding: 32px 20px;
}

.footer-content {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 24px;
    margin-bottom: 24px;
}

.footer-branding {
    display: flex;
    align-items: center;
    gap: 8px;
    font-weight: 600;
    color: var(--color-text);
}

.footer-menu {
    display: flex;
    gap: 24px;
}

.footer-menu a {
    font-size: 14px;
    color: var(--color-text-light);
}

.footer-menu a:hover {
    color: var(--color-primary);
}

.footer-bottom {
    padding-top: 24px;
    border-top: 1px solid var(--color-border-light);
}

.footer-copyright {
    font-size: 13px;
    color: var(--color-text-muted);
    text-align: center;
}

/* ============================================
   Pagination
   ============================================ */
.pagination,
.navigation {
    margin-top: 32px;
    text-align: center;
}

.nav-links {
    display: flex;
    align-items: center;
    justify-content: center;
    flex-wrap: nowrap;
    gap: 8px;
}

.page-numbers {
    display: flex;
    align-items: center;
    justify-content: center;
    min-width: 40px;
    height: 40px;
    padding: 0 12px;
    border-radius: var(--radius-md);
    font-size: 14px;
    font-weight: 500;
    color: var(--color-text);
    background: var(--color-bg-white);
    border: 1px solid var(--color-border);
    transition: all var(--transition);
    text-decoration: none;
}

.page-numbers:hover {
    border-color: var(--color-primary);
    color: var(--color-primary);
}

.page-numbers.current {
    background: var(--color-primary);
    border-color: var(--color-primary);
    color: #fff;
}

/* ============================================
   Comments
   ============================================ */
.comments-area {
    margin-top: 40px;
    padding-top: 32px;
    border-top: 1px solid var(--color-border-light);
}

.comments-title {
    font-size: 20px;
    font-weight: 700;
    margin-bottom: 24px;
}

.comment-list {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.comment {
    display: flex;
    gap: 16px;
}

.comment-avatar {
    width: 44px;
    height: 44px;
    border-radius: 50%;
    object-fit: cover;
    flex-shrink: 0;
}

.comment-body {
    flex: 1;
}

.comment-header {
    display: flex;
    align-items: center;
    gap: 8px;
    margin-bottom: 8px;
}

.comment-author {
    font-weight: 600;
    font-size: 14px;
}

.comment-date {
    font-size: 12px;
    color: var(--color-text-muted);
}

.comment-content {
    font-size: 14px;
    line-height: 1.6;
}

.comment-reply-link {
    font-size: 12px;
    color: var(--color-primary);
    margin-top: 8px;
    display: inline-block;
}

/* ============================================
   Utilities
   ============================================ */
.visually-hidden {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
}

.text-center {
    text-align: center;
}

.mt-1 { margin-top: 8px; }
.mt-2 { margin-top: 16px; }
.mt-3 { margin-top: 24px; }
.mb-1 { margin-bottom: 8px; }
.mb-2 { margin-bottom: 16px; }
.mb-3 { margin-bottom: 24px; }