:root {
    --accent-blue: #153a73;
    --accent-green: #0f766e;
    --accent-green-dark: #115e59;
    --accent-purple: #d97706;
    --text-primary: #0f172a;
    --text-secondary: #475569;
    --bg-page: #f8fafc;
    --bg-surface: rgba(255, 255, 255, 0.82);
    --bg-card: #ffffff;
    --card-bg: #ffffff;
    --bg-header: rgba(248, 250, 252, 0.8);
    --border-color: rgba(15, 23, 42, 0.1);
    --shadow-soft: 0 18px 44px rgba(15, 23, 42, 0.08);
    --surface-shadow-hover: 0 24px 52px rgba(15, 23, 42, 0.12);
    --surface-highlight: linear-gradient(135deg, rgba(21, 58, 115, 0.06), rgba(15, 118, 110, 0.04));
    --footer-bg: #10233f;
    --footer-border: rgba(148, 163, 184, 0.18);
}

[data-theme="dark"] {
    --accent-blue: #bfdbfe;
    --accent-green: #22c55e;
    --accent-green-dark: #86efac;
    --accent-purple: #f59e0b;
    --text-primary: #e5edf8;
    --text-secondary: #93a4bc;
    --bg-page: #0b1320;
    --bg-surface: rgba(15, 23, 36, 0.78);
    --bg-card: #111c2b;
    --card-bg: #111c2b;
    --bg-header: rgba(11, 19, 32, 0.74);
    --border-color: rgba(148, 163, 184, 0.16);
    --shadow-soft: 0 22px 48px rgba(0, 0, 0, 0.34);
    --surface-shadow-hover: 0 28px 58px rgba(0, 0, 0, 0.42);
    --surface-highlight: linear-gradient(135deg, rgba(59, 130, 246, 0.12), rgba(34, 197, 94, 0.08));
    --footer-bg: #08111f;
    --footer-border: rgba(148, 163, 184, 0.14);
}

body {
    background:
        radial-gradient(circle at top left, rgba(21, 58, 115, 0.05), transparent 30%),
        radial-gradient(circle at 82% 8%, rgba(15, 118, 110, 0.04), transparent 24%),
        linear-gradient(180deg, rgba(255, 255, 255, 0.5), transparent 22%),
        var(--bg-page);
    color: var(--text-primary);
}

[data-theme="dark"] body {
    background:
        radial-gradient(circle at 12% 16%, rgba(37, 99, 235, 0.18), transparent 26%),
        radial-gradient(circle at 82% 8%, rgba(14, 165, 233, 0.12), transparent 20%),
        linear-gradient(180deg, rgba(255, 255, 255, 0.02), transparent 24%),
        var(--bg-page);
}

main {
    padding-top: 56px;
    padding-bottom: 88px;
}

h1,
h2,
h3,
h4,
h5,
h6 {
    letter-spacing: -0.025em;
}

p,
li {
    line-height: 1.68;
}

.site-header {
    position: sticky;
    top: 0;
    z-index: 100;
    background: var(--bg-header);
    border-bottom: 1px solid var(--border-color);
    backdrop-filter: blur(18px) saturate(170%);
    -webkit-backdrop-filter: blur(18px) saturate(170%);
    box-shadow: 0 16px 40px rgba(15, 23, 42, 0.08);
}

.site-header::before {
    content: "";
    position: absolute;
    inset: 0;
    background:
        linear-gradient(90deg, rgba(255, 255, 255, 0.18), transparent 18%, transparent 82%, rgba(255, 255, 255, 0.12)),
        var(--surface-highlight);
    opacity: 0.85;
    pointer-events: none;
}

.header-inner {
    position: relative;
    z-index: 1;
    display: grid;
    grid-template-columns: minmax(0, 1fr) auto;
    grid-template-areas:
        "brand actions"
        "nav nav";
    align-items: center;
    row-gap: 10px;
    column-gap: 16px;
    padding: 10px 0 12px;
}

.mobile-menu-toggle {
    display: none;
}

.brand {
    display: inline-flex;
    align-items: center;
    gap: 12px;
    min-height: 52px;
    min-width: 0;
    grid-area: brand;
}

.brand-mark {
    width: 50px;
    height: 50px;
    border-radius: 16px;
    background: linear-gradient(135deg, #153a73, #0f766e);
    box-shadow: 0 16px 28px rgba(21, 58, 115, 0.18);
}

[data-theme="dark"] .brand-mark {
    background: linear-gradient(135deg, #2563eb, #0ea5e9);
    box-shadow: 0 16px 28px rgba(37, 99, 235, 0.26);
}

.brand-title {
    font-size: 1.55rem;
    line-height: 1;
    letter-spacing: -0.02em;
}

.brand-subtitle {
    max-width: 240px;
    font-size: 0.84rem;
    line-height: 1.45;
    color: var(--text-secondary);
}

.site-nav {
    grid-area: nav;
    min-width: 0;
    width: 100%;
    display: flex;
    align-items: center;
    justify-content: flex-start;
    flex-wrap: wrap;
    gap: 8px;
    padding-top: 2px;
    border-top: 1px solid rgba(15, 23, 42, 0.08);
}

[data-theme="dark"] .site-nav {
    border-top-color: rgba(148, 163, 184, 0.14);
}

.nav-link {
    position: relative;
    display: inline-flex;
    align-items: center;
    flex: 0 0 auto;
    padding: 8px 14px;
    border-radius: 999px;
    color: var(--text-secondary);
    font-weight: 600;
    white-space: nowrap;
    transition: color 0.2s ease, background-color 0.2s ease, transform 0.2s ease;
}

.nav-link::after {
    left: 14px;
    right: 14px;
    width: auto;
    bottom: 6px;
    height: 2px;
    border-radius: 999px;
    background: linear-gradient(90deg, #153a73, #0f766e);
}

.nav-link:hover,
.nav-link.active {
    color: var(--accent-blue);
    background: rgba(21, 58, 115, 0.08);
    transform: translateY(-1px);
}

[data-theme="dark"] .nav-link:hover,
[data-theme="dark"] .nav-link.active {
    background: rgba(59, 130, 246, 0.14);
}

.header-actions {
    margin-left: auto;
    grid-area: actions;
    display: inline-flex;
    align-items: center;
    gap: 10px;
    flex-wrap: nowrap;
}

.header-actions .btn {
    min-height: 44px;
    min-width: 104px;
    padding-inline: 16px;
    white-space: nowrap;
    flex-shrink: 0;
}

@media (min-width: 769px) {
    .site-header,
    .site-header .header-inner,
    .site-header .brand,
    .site-header .brand-mark,
    .site-header .brand-title,
    .site-header .brand-subtitle,
    .site-header .site-nav,
    .site-header .nav-link,
    .site-header .header-actions .btn {
        transition:
            padding 0.24s ease,
            min-height 0.24s ease,
            width 0.24s ease,
            height 0.24s ease,
            gap 0.24s ease,
            font-size 0.24s ease,
            opacity 0.2s ease,
            transform 0.24s ease,
            box-shadow 0.24s ease;
    }

    .site-header .brand-subtitle {
        max-height: 48px;
        overflow: hidden;
        transition:
            max-height 0.24s ease,
            opacity 0.2s ease,
            transform 0.24s ease;
    }

    .site-header.is-compact {
        box-shadow: 0 10px 28px rgba(15, 23, 42, 0.1);
    }

    .site-header.is-compact .header-inner {
        row-gap: 4px;
        padding: 6px 0 8px;
    }

    .site-header.is-compact .brand {
        min-height: 42px;
        gap: 10px;
    }

    .site-header.is-compact .brand-mark {
        width: 40px;
        height: 40px;
        border-radius: 13px;
    }

    .site-header.is-compact .brand-title {
        font-size: 1.28rem;
    }

    .site-header.is-compact .brand-subtitle {
        max-height: 0;
        opacity: 0;
        transform: translateY(-4px);
    }

    .site-header.is-compact .site-nav {
        gap: 6px;
        padding-top: 0;
    }

    .site-header.is-compact .nav-link {
        padding: 6px 12px;
        font-size: 0.93rem;
    }

    .site-header.is-compact .header-actions .btn {
        min-height: 38px;
        padding-inline: 14px;
    }
}

.btn {
    border-radius: 12px;
    font-weight: 700;
    letter-spacing: -0.01em;
}

.btn-secondary {
    background: rgba(255, 255, 255, 0.7);
}

[data-theme="dark"] .btn-secondary {
    background: rgba(17, 28, 43, 0.92);
}

.card,
.hero-card,
.feature-card,
.forum-card,
.stat-item,
.catalog-hero,
.course-card,
.forum-header,
.section-card,
.community-card,
.topic-post-card,
.topic-block,
.form-card,
.table-wrapper,
.empty-state {
    background: var(--bg-card) !important;
    border: 1px solid var(--border-color) !important;
    border-radius: 16px !important;
    box-shadow: var(--shadow-soft) !important;
    transition: transform 0.22s ease, box-shadow 0.22s ease, border-color 0.22s ease, background-color 0.22s ease;
}

.hero-card,
.feature-card,
.forum-card,
.stat-item,
.course-card,
.section-card,
.community-card,
.topic-block {
    position: relative;
    overflow: hidden;
}

.hero-card::before,
.feature-card::before,
.forum-card::before,
.stat-item::before,
.course-card::before,
.section-card::before,
.community-card::before,
.topic-block::before {
    content: "";
    position: absolute;
    inset: 0;
    background: var(--surface-highlight);
    opacity: 0;
    transition: opacity 0.22s ease;
    pointer-events: none;
}

.hero-card:hover,
.feature-card:hover,
.forum-card:hover,
.stat-item:hover,
.course-card:hover,
.section-card:hover,
.community-card:hover,
.topic-block:hover {
    transform: translateY(-4px);
    box-shadow: var(--surface-shadow-hover) !important;
    border-color: rgba(21, 58, 115, 0.18) !important;
}

.hero-card:hover::before,
.feature-card:hover::before,
.forum-card:hover::before,
.stat-item:hover::before,
.course-card:hover::before,
.section-card:hover::before,
.community-card:hover::before,
.topic-block:hover::before {
    opacity: 1;
}

.forum-sections-page .section-block,
.forum-sections-page .section-block::before,
.forum-sections-page .section-block:hover::before,
.forum-sections-page .forum-header::before {
    background: none !important;
}

.forum-sections-page .section-block {
    background: #ffffff !important;
    border: 1px solid rgba(15, 23, 42, 0.08) !important;
    box-shadow: 0 14px 30px rgba(15, 23, 42, 0.07) !important;
}

[data-theme="dark"] .forum-sections-page .section-block {
    background: #111c2b !important;
    border-color: rgba(148, 163, 184, 0.16) !important;
    box-shadow: 0 18px 34px rgba(0, 0, 0, 0.3) !important;
}

.forum-hub .forum-section {
    background: transparent !important;
    border: 0 !important;
    box-shadow: none !important;
    border-radius: 0 !important;
    padding: 0 !important;
    gap: 20px;
}

.forum-hub .section-header {
    padding-bottom: 12px;
    border-bottom: 1px solid rgba(15, 23, 42, 0.08);
}

[data-theme="dark"] .forum-hub .section-header {
    border-bottom-color: rgba(148, 163, 184, 0.14);
}

/* Sections list: topic preview is a mobile-only pattern */
.section-topics-preview {
    display: none;
}

.hero,
.feature-grid,
.forum-preview,
.course-grid,
.stat-grid,
.sections-grid {
    gap: 24px !important;
}

.catalog-hero,
.forum-header {
    border-radius: 24px !important;
}

.catalog-hero,
.forum-header,
.hero-card {
    padding: 32px !important;
}

.catalog-hero h1,
.hero h1,
.forum-title {
    letter-spacing: -0.035em;
}

.catalog-hero p,
.hero p,
.forum-subtitle,
.section-description,
.course-card p,
.forum-card p,
.feature-card p {
    color: var(--text-secondary) !important;
}

.stat-item span,
.course-price,
.meta-item i,
.tag,
.badge {
    color: var(--accent-green-dark) !important;
}

.category-filter {
    gap: 12px !important;
    margin-bottom: 36px !important;
}

.category-filter a,
.filter-option,
.page-number {
    border-radius: 999px !important;
    border: 1px solid var(--border-color) !important;
    background: var(--bg-card) !important;
    color: var(--text-secondary) !important;
    transition: transform 0.2s ease, border-color 0.2s ease, background-color 0.2s ease, color 0.2s ease;
}

.category-filter a:hover,
.category-filter a.active,
.filter-option:hover,
.filter-option.active,
.page-number:hover,
.page-number.active {
    color: var(--btn-primary-text) !important;
    background: var(--btn-primary-bg) !important;
    border-color: transparent !important;
    transform: translateY(-1px);
}

.footer {
    position: relative;
    overflow: hidden;
    margin-top: 96px;
    background: linear-gradient(180deg, rgba(10, 24, 47, 0.96), var(--footer-bg));
    border-top: 1px solid var(--footer-border);
}

.footer::before {
    content: "";
    position: absolute;
    inset: 0;
    background:
        radial-gradient(circle at top left, rgba(59, 130, 246, 0.18), transparent 26%),
        radial-gradient(circle at right top, rgba(34, 197, 94, 0.12), transparent 24%);
    pointer-events: none;
}

.footer-content,
.footer-bottom {
    position: relative;
    z-index: 1;
}

.footer-content {
    gap: 36px;
    padding-top: 64px;
    padding-bottom: 36px;
}

.footer-section h3,
.footer-section h4 {
    margin-bottom: 16px;
    color: #f8fafc;
    letter-spacing: -0.02em;
}

.footer-section p,
.footer-section a {
    color: rgba(226, 232, 240, 0.78);
    font-size: 0.94rem;
    line-height: 1.72;
}

.footer-section a {
    display: inline-flex;
    align-items: center;
    width: fit-content;
    transition: color 0.2s ease, transform 0.2s ease;
}

.footer-section a:hover {
    color: #ffffff;
    transform: translateX(3px);
}

.footer-bottom {
    border-top: 1px solid var(--footer-border);
    color: rgba(226, 232, 240, 0.62);
}

.theme-toggle {
    border-radius: 14px;
    padding: 10px 16px;
    background: rgba(255, 255, 255, 0.86);
    backdrop-filter: blur(16px);
}

[data-theme="dark"] .theme-toggle {
    background: rgba(17, 28, 43, 0.92);
}

.mobile-drawer-backdrop {
    position: fixed;
    inset: 0;
    z-index: 1090;
    background: rgba(15, 23, 42, 0.48);
    opacity: 0;
    transition: opacity 0.25s ease-in-out;
}

.mobile-drawer-backdrop.is-open {
    opacity: 1;
}

.mobile-drawer {
    position: fixed;
    top: 0;
    right: 0;
    z-index: 1100;
    width: min(78vw, 320px);
    height: 100vh;
    padding: 18px 16px 22px;
    background: rgba(255, 255, 255, 0.96);
    border-left: 1px solid rgba(15, 23, 42, 0.08);
    box-shadow: -24px 0 60px rgba(15, 23, 42, 0.18);
    backdrop-filter: blur(18px);
    transform: translateX(100%);
    transition: transform 0.25s ease-in-out;
    display: flex;
    flex-direction: column;
    gap: 20px;
}

[data-theme="dark"] .mobile-drawer {
    background: rgba(11, 19, 32, 0.98);
    border-left-color: rgba(148, 163, 184, 0.12);
    box-shadow: -24px 0 60px rgba(0, 0, 0, 0.34);
}

.mobile-drawer.is-open {
    transform: translateX(0);
}

.mobile-drawer__header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
}

.mobile-drawer__title {
    font-family: var(--font-heading);
    font-size: 1.5rem;
    color: var(--accent-blue);
}

.mobile-drawer__close {
    width: 42px;
    height: 42px;
    border: 1px solid var(--border-color);
    border-radius: 12px;
    background: var(--bg-card);
    color: var(--text-primary);
    font-size: 1.5rem;
    line-height: 1;
    cursor: pointer;
}

.mobile-drawer__nav {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.mobile-nav-link {
    padding: 12px 14px;
    border-radius: 12px;
    text-decoration: none;
    color: var(--text-primary);
    font-weight: 600;
    background: rgba(15, 23, 42, 0.03);
    transition: background-color 0.2s ease, color 0.2s ease, transform 0.2s ease;
}

[data-theme="dark"] .mobile-nav-link {
    background: rgba(148, 163, 184, 0.08);
    color: var(--text-primary);
}

.mobile-nav-link:hover {
    background: rgba(21, 58, 115, 0.08);
    color: var(--accent-blue);
    transform: translateX(2px);
}

.mobile-nav-link.active {
    background: rgba(21, 58, 115, 0.1);
    color: var(--accent-blue);
    box-shadow: inset 3px 0 0 #153a73;
}

[data-theme="dark"] .mobile-nav-link.active {
    background: rgba(59, 130, 246, 0.16);
    box-shadow: inset 3px 0 0 #60a5fa;
}

/* Auth pages (login/register): inline styles set white card background */
[data-theme="dark"] .auth-card {
    background: var(--bg-card) !important;
    border-color: var(--border-color) !important;
    box-shadow: var(--shadow-soft) !important;
}

[data-theme="dark"] .auth-card .error-message {
    color: #ffb3b3;
    border-color: rgba(255, 116, 116, 0.42);
    background: rgba(255, 116, 116, 0.12);
}

[data-theme="dark"] .auth-card .info-message,
[data-theme="dark"] .auth-card .form-help {
    color: var(--text-secondary);
    border-color: rgba(139, 181, 255, 0.25);
    background: rgba(139, 181, 255, 0.1);
}

.mobile-theme-switch {
    display: grid;
    grid-template-columns: auto 1fr auto;
    align-items: center;
    gap: 12px;
    padding: 12px 14px;
    border: 1px solid var(--border-color);
    border-radius: 14px;
    background: rgba(15, 23, 42, 0.03);
}

[data-theme="dark"] .mobile-theme-switch {
    background: rgba(148, 163, 184, 0.08);
}

.mobile-theme-switch__text {
    font-weight: 600;
    color: var(--text-primary);
}

.mobile-theme-switch__control {
    position: relative;
    width: 48px;
    height: 28px;
    display: inline-flex;
}

.mobile-theme-switch__control input {
    position: absolute;
    inset: 0;
    opacity: 0;
    cursor: pointer;
}

.mobile-theme-switch__slider {
    width: 48px;
    height: 28px;
    border-radius: 999px;
    background: rgba(148, 163, 184, 0.34);
    transition: background-color 0.25s ease;
    position: relative;
}

.mobile-theme-switch__slider::after {
    content: "";
    position: absolute;
    top: 3px;
    left: 3px;
    width: 22px;
    height: 22px;
    border-radius: 50%;
    background: #ffffff;
    box-shadow: 0 2px 8px rgba(15, 23, 42, 0.24);
    transition: transform 0.25s ease;
}

.mobile-theme-switch__control input:checked + .mobile-theme-switch__slider {
    background: linear-gradient(135deg, #2563eb, #0ea5e9);
}

.mobile-theme-switch__control input:checked + .mobile-theme-switch__slider::after {
    transform: translateX(20px);
}

.mobile-drawer__actions {
    margin-top: auto;
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.mobile-drawer__actions .btn {
    width: 100%;
}

body.drawer-open {
    overflow: hidden;
}

@media (min-width: 640px) and (max-width: 1024px) {
    .header-inner {
        row-gap: 8px;
        column-gap: 12px;
    }

    .site-nav {
        gap: 6px;
        padding-top: 4px;
    }

    .brand-subtitle {
        display: none;
    }

    .nav-link {
        padding-inline: 12px;
        font-size: 0.94rem;
    }

    .header-actions .btn {
        min-width: 96px;
        padding-inline: 14px;
    }
}

@media (max-width: 768px) {
    .container {
        padding-inline: 16px;
    }

    main {
        padding-top: 28px;
        padding-bottom: 64px;
    }

    .site-header::before {
        opacity: 0.95;
    }

    .site-header .header-inner {
        display: flex !important;
        flex-direction: row !important;
        align-items: center !important;
        justify-content: space-between !important;
        flex-wrap: nowrap !important;
        min-height: 60px;
        padding: 8px 0;
        gap: 12px;
    }

    .site-header .mobile-menu-toggle {
        width: 40px;
        height: 40px;
        display: inline-flex;
        flex-direction: column;
        align-items: center;
        justify-content: center;
        gap: 5px;
        border: 1px solid var(--border-color);
        border-radius: 12px;
        background: rgba(255, 255, 255, 0.7);
        color: var(--text-primary);
        cursor: pointer;
    }

    [data-theme="dark"] .mobile-menu-toggle {
        background: rgba(17, 28, 43, 0.9);
    }

    .mobile-menu-toggle__line {
        width: 18px;
        height: 2px;
        border-radius: 999px;
        background: currentColor;
    }

    .site-header .brand-subtitle,
    .site-header .site-nav,
    .site-header .header-actions {
        display: none !important;
    }

    .site-header .brand {
        order: 1;
        display: inline-flex !important;
        align-items: center !important;
        flex: 0 1 auto !important;
        min-width: 0;
        max-width: calc(100% - 52px);
        flex-wrap: nowrap;
        white-space: nowrap;
        overflow: hidden;
    }

    .site-header .mobile-menu-toggle {
        order: 2;
        flex: 0 0 auto;
        margin-left: auto;
    }

    .site-header .brand-text {
        display: flex !important;
        flex-direction: column;
        min-width: 0;
        overflow: hidden;
    }

    .site-header .brand-mark {
        width: 38px;
        height: 38px;
        border-radius: 12px;
        flex: 0 0 auto;
    }

    .site-header .brand-title {
        font-size: 1.08rem;
        line-height: 1;
        white-space: nowrap;
        overflow: hidden;
        text-overflow: ellipsis;
    }

    .theme-toggle {
        display: none;
    }

    /* Typography: compact, readable, no "shrunk desktop" feel */
    h1 {
        font-size: 1.65rem;
        line-height: 1.15;
    }

    h2 {
        font-size: 1.35rem;
        line-height: 1.2;
    }

    h3 {
        font-size: 1.15rem;
        line-height: 1.25;
    }

    p,
    li {
        line-height: 1.55;
    }

    /* Buttons: full-width, touch-friendly */
    .btn,
    button.btn,
    input.btn {
        width: 100%;
        min-height: 48px;
        padding: 12px 16px;
        font-size: 1rem;
        border-radius: 14px;
    }

    .hero-actions,
    .education-actions,
    .forum-actions,
    .section-admin-actions,
    .mobile-drawer__actions {
        gap: 10px;
    }

    .hero-actions,
    .education-actions,
    .forum-actions,
    .section-admin-actions {
        flex-direction: column;
        align-items: stretch;
    }

    /* Cards: 1 column, clear hierarchy, comfortable padding */
    .card,
    .hero-card,
    .feature-card,
    .forum-card,
    .catalog-hero,
    .course-card,
    .forum-header,
    .section-card,
    .community-card,
    .topic-post-card,
    .topic-block,
    .form-card,
    .empty-state {
        border-radius: 14px !important;
    }

    .course-card,
    .topic-block,
    .topic-post-card,
    .forum-sections-page .section-block,
    .benefit-card {
        padding: 16px !important;
    }

    .catalog-hero,
    .forum-header,
    .hero-card,
    .education-hero {
        padding: 18px !important;
    }

    /* Courses: force single-column layout */
    .course-grid,
    .benefits-grid {
        grid-template-columns: 1fr !important;
        gap: 16px !important;
    }

    .course-meta {
        display: flex;
        flex-direction: column;
        align-items: flex-start;
        gap: 6px;
        font-size: 0.95rem;
    }

    /* Forum: sections list -> mobile format (title + topics list vertically) */
    .forum-sections-page .sections-grid {
        grid-template-columns: 1fr !important;
        gap: 16px !important;
    }

    .forum-sections-page .section-block {
        width: 100%;
        gap: 16px;
    }

    .forum-sections-page .section-title {
        font-size: 1.4rem !important;
        line-height: 1.15 !important;
        margin: 0 !important;
    }

    .forum-sections-page .section-description {
        font-size: 0.98rem;
        line-height: 1.55;
    }

    .section-topics-preview {
        display: flex;
        flex-direction: column;
        gap: 10px;
    }

    .section-topics-title {
        font-size: 0.9rem;
        font-weight: 700;
        color: var(--text-secondary);
    }

    .section-topics {
        list-style: none;
        display: flex;
        flex-direction: column;
        gap: 10px;
        padding: 0;
        margin: 0;
    }

    .section-topic-item {
        display: flex;
    }

    .section-topic-link {
        width: 100%;
        min-height: 44px;
        display: inline-flex;
        align-items: center;
        padding: 10px 12px;
        border-radius: 12px;
        text-decoration: none;
        background: rgba(15, 23, 42, 0.03);
        color: var(--text-primary);
    }

    [data-theme="dark"] .section-topic-link {
        background: rgba(148, 163, 184, 0.08);
    }

    .section-topic-link:active {
        transform: translateY(1px);
    }

    /* Hide secondary stats on mobile (avoid "dashboard" feel) */
    .forum-sections-page .section-meta {
        display: none;
    }

    .topics-list .topic-block {
        width: 100%;
    }

    .topic-header,
    .topic-meta,
    .topic-post-header {
        flex-direction: column;
        align-items: flex-start;
        justify-content: flex-start;
        gap: 10px;
    }

    .topic-stats {
        display: none;
    }

    .topic-title a {
        font-size: 1.08rem !important;
        line-height: 1.25;
    }

    .topic-tags {
        gap: 8px;
    }

    .tag-badge {
        min-height: 32px;
        padding: 6px 10px;
        font-size: 0.9rem;
    }

    /* Footer: vertical blocks, left aligned */
    .footer-content {
        display: flex;
        flex-direction: column;
        align-items: flex-start;
        gap: 22px;
        padding: 44px 16px 22px;
    }

    .footer-section ul {
        gap: 12px;
    }

    .footer-bottom {
        text-align: left;
        padding: 16px;
    }
}

@media (max-width: 1024px) {
    .site-nav {
        width: 100%;
    }

    .header-actions {
        width: auto;
    }
}

@media (max-width: 700px) {
    main {
        padding-top: 36px;
        padding-bottom: 72px;
    }

    .catalog-hero,
    .forum-header,
    .hero-card {
        padding: 24px !important;
    }

    .footer-content {
        padding-top: 48px;
    }
}