.um-header *,
    .um-header *::before,
    .um-header *::after {
        box-sizing: border-box;
        margin: 0;
        padding: 0;
        font: inherit;
        color: inherit;
        background: none;
        border: none;
        text-decoration: none;
        list-style: none;
    }

    .um-header {
        --um-primary-color: #333;
        --um-bg-color: #fff;
        --um-hover-color: inherit;
        --um-border-color: #ddd;
        --um-transition: 0.3s ease;
        --um-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);

        all: initial;
        font-family: inherit;
        display: block;
        position: relative;
        background-color: var(--um-bg-color);
        color: var(--um-primary-color);
    }

    .um-container {
        display: flex;
        flex-wrap: wrap;
        justify-content: space-between;
        align-items: center;
        max-width: 100%;
        padding: 1rem;
        gap: 1rem;
    }

    .um-logo {
        display: flex;
        align-items: center;
        gap: 0.75rem;
        text-decoration: none;
        color: inherit;
        font-weight: bold;
    }

    .um-logo__image {
        display: block;
        max-width: 60px;
        height: auto;
    }

    .um-logo__text {
        font-size: 1.25rem;
    }

    .um-logo-text {
        text-decoration: none;
        color: inherit;
        font-weight: bold;
        font-size: 1.25rem;
    }

    .um-burger {
        --um-burger-width: 30px;
        --um-burger-height: 24px;

        display: none;
        flex-direction: column;
        justify-content: space-between;
        width: var(--um-burger-width);
        height: var(--um-burger-height);
        padding: 0;
        background: none;
        border: none;
        cursor: pointer;
        z-index: 1001;
        position: relative;
    }

    .um-burger__line {
        width: 100%;
        height: 3px;
        background-color: currentColor;
        border-radius: 1px;
        transition: transform var(--um-transition), opacity var(--um-transition);
    }

    .um-burger[aria-expanded="true"] .um-burger__line:nth-child(1) {
        transform: translateY(9px) rotate(45deg);
    }

    .um-burger[aria-expanded="true"] .um-burger__line:nth-child(2) {
        opacity: 0;
    }

    .um-burger[aria-expanded="true"] .um-burger__line:nth-child(3) {
        transform: translateY(-9px) rotate(-45deg);
    }

    .um-navigation {
        position: relative;
        z-index: 1000;
    }

    .um-menu {
        display: flex;
        flex-wrap: wrap;
        flex-direction: column;
        gap: 0;
        margin: 0;
        padding: 0;
    }

    .um-menu-item {
        position: relative;
    }

    .um-menu-item__inner {
        display: flex;
        align-items: center;
        justify-content: space-between;
        gap: 0.5rem;
    }

    .um-menu-link {
        display: block;
        padding: 0.75rem 1rem;
        color: inherit;
        text-decoration: none !important;
        flex: 1;
        transition: color var(--um-transition);
        border-radius: 4px;
    }

    a.um-menu-link:hover {
        color: var(--um-hover-color);
        background-color: rgba(0, 0, 0, 0.03);
    }

    .um-menu-item--current>.um-menu-item__inner>.um-menu-link {
        color: var(--um-hover-color);
        font-weight: 600;
    }

    .um-menu-toggle {
        display: flex;
        align-items: center;
        justify-content: center;
        width: 36px;
        height: 36px;
        padding: 0;
        background: none;
        border: none;
        cursor: pointer;
        color: inherit;
        border-radius: 4px;
        flex-shrink: 0;
        transition: background-color var(--um-transition);
    }

    .um-menu-toggle:hover {
        background-color: rgba(0, 0, 0, 0.05);
    }

    .um-menu-toggle__icon {
        transition: transform var(--um-transition);
    }

    .um-menu-toggle[aria-expanded="true"] .um-menu-toggle__icon {
        transform: rotate(180deg);
    }

    .um-sub-menu {
        display: none;
        min-width: 200px;
        padding: 0.5rem 0;
        background-color: var(--um-bg-color);
        box-shadow: var(--um-shadow);
        border: 1px solid var(--um-border-color);
        border-radius: 6px;
    }

    .um-sub-menu--depth-0 {
        position: static;
    }

    .um-sub-menu--depth-1 {
        position: absolute;
        top: 100%;
        left: 0;
        z-index: 100;
    }

    .um-sub-menu--depth-2 {
        position: absolute;
        top: 0;
        left: 100%;
        margin-left: 0.5rem;
    }

    .um-sub-menu.active {
        display: block;
    }

    .um-sub-menu .um-menu-link {
        padding: 0.625rem 1rem;
        font-size: 0.9375rem;
    }

    @media (max-width: 1023px) {
        .um-burger {
            display: flex;
        }

        .um-navigation {
            position: fixed;
            top: 0;
            left: -100%;
            width: 100%;
            max-width: 320px;
            height: 100vh;
            background-color: var(--um-bg-color);
            transition: left var(--um-transition);
            overflow-y: auto;
            padding: 5rem 1rem 2rem;
            box-shadow: 2px 0 10px rgba(0, 0, 0, 0.1);
        }

        .um-navigation.active {
            left: 0;
        }

        .um-overlay {
            display: none;
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background-color: rgba(0, 0, 0, 0.5);
            z-index: 999;
        }

        .um-overlay.active {
            display: block;
        }

        .um-sub-menu--depth-1,
        .um-sub-menu--depth-2 {
            position: static;
            margin-left: 1rem;
            margin-top: 0.5rem;
            box-shadow: none;
            border: none;
            border-left: 1px solid var(--um-border-color);
        }
    }

    @media (min-width: 1024px) {
        .um-container {
            flex-wrap: nowrap;
        }

        .um-menu {
            flex-direction: row;
            flex-wrap: wrap;
            gap: 0.25rem;
        }

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

        .um-menu-item--has-children:hover>.um-sub-menu {
            display: block;
        }

        .um-menu-item:last-child .um-sub-menu--depth-1,
        .um-menu-item:nth-last-child(2) .um-sub-menu--depth-1 {
            left: auto;
            right: 0;
        }
    }

    .um-menu-toggle:focus-visible,
    .um-menu-link:focus-visible,
    .um-burger:focus-visible {
        outline-width: 2px;
        outline-style: solid;
        outline-color: var(--um-hover-color);
        outline-offset: 2px;
    }

    @media (prefers-reduced-motion: reduce) {
        .um-header * {
            transition: none !important;
            animation: none !important;
        }
    }

    .um-header.um-theme-dark {
        --um-primary-color: inherit;
        --um-bg-color: inherit;
        --um-hover-color: inherit;
        --um-border-color: inherit;
    }

    .um-header.um-theme-minimal {
        --um-bg-color: transparent;
        --um-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
    }

    .um-hide {
        display: none !important;
    }

    .um-show {
        display: block !important;
    }

    .um-sr-only {
        position: absolute;
        width: 1px;
        height: 1px;
        padding: 0;
        margin: -1px;
        overflow: hidden;
        clip: rect(0, 0, 0, 0);
        white-space: nowrap;
        border: 0;
    }
    .header-meta time {
        margin: auto;
        font-size: 1rem;
    }

    .header-meta {
        display: flex;
        flex-wrap: wrap;
        align-items: center;
        justify-content: center;
        gap: 1rem;
        font-family: inherit;
    }

    .header-meta span {
        display: flex;
        align-items: center;
        gap: 1rem;
    }

    .header-meta svg {
        width: 30px;
    }
    .articles-main {
        padding: 20px 0;
    }

    .articles-breadcrumbs {
        margin-bottom: 20px;
    }

    .articles-header {
        text-align: center;
        margin-bottom: 40px;
    }

    .articles-page-title {
        font-size: 2.5rem;
        margin: 0;
        color: #333;
    }

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

    .articles-grid {
        display: flex;
        flex-wrap: wrap;
        gap: 30px;
        margin-bottom: 50px;
    }

    .article-item {
        flex: 1 1 calc(50% - 30px);
        min-width: 300px;
        box-sizing: border-box;
    }

    .article-card {
        border-radius: 12px;
        overflow: hidden;
        transition: all 0.3s ease;
        height: 100%;
        display: flex;
        flex-direction: column;
    }


    .article-card__image-link {
        display: block;
        text-decoration: none;
    }

    .article-card__image {
        height: 220px;
        overflow: hidden;
        position: relative;
    }

    .article-card__img {
        width: 100%;
        height: 100%;
        border-radius: 1rem;
        object-fit: cover;
        transition: transform 0.5s ease;
    }

    .article-card:hover .article-card__img {
        transform: scale(1.05);
    }

    .article-card__image--placeholder {
        background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
        display: flex;
        align-items: center;
        justify-content: center;
    }

    .placeholder-icon {
        font-size: 60px;
        opacity: 0.7;
    }

    .article-card__content {
        padding: 25px;
        flex: 1;
        display: flex;
        flex-direction: column;
    }

    .article-card__header {
        margin-bottom: 15px;
    }

    .article-card__title {
        margin: 0 0 10px 0;
        font-size: 1.4rem;
        line-height: 1.3;
    }

    .article-card__title a {
        color: inherit;
        text-decoration: none;
        transition: color 0.3s ease;
    }

    .article-card__title a:hover {
        color: inherit;
    }

    .article-meta {
        display: flex;
        flex-wrap: wrap;
        align-items: center;
        gap: 8px;
        font-size: 0.85rem;
        color: #666;
    }

    .article-meta__separator {
        color: #999;
        font-size: 0.9em;
    }

    .article-meta__date,
    .article-meta__author,
    .article-meta__category,
    .article-meta__time {
        display: inline-flex;
        align-items: center;
    }

    .article-card__excerpt {
        flex: 1;
        margin-bottom: 20px;
        line-height: 1.6;
        color: #555;
    }

    .article-card__footer {
        margin-top: auto;
        padding-top: 15px;
        border-top: 1px solid #eee;
    }

    .article-card__read-more {
        display: inline-flex;
        align-items: center;
        gap: 5px;
        color: inherit;
        text-decoration: none;
        font-weight: 600;
        transition: gap 0.3s ease;
    }

    .article-card__read-more:hover {
        gap: 10px;
    }

    .read-more-arrow {
        transition: transform 0.3s ease;
    }

    .article-card__read-more:hover .read-more-arrow {
        transform: translateX(3px);
    }

    .articles-pagination {
        margin-top: 40px;
    }

    .articles-pagination ul {
        display: flex;
        flex-wrap: wrap;
        justify-content: center;
        list-style: none;
        padding: 0;
        margin: 0;
        gap: 5px;
    }

    .articles-pagination li {
        margin: 0;
    }

    .articles-pagination .page-numbers {
        display: inline-flex;
        align-items: center;
        justify-content: center;
        min-width: 40px;
        height: 40px;
        padding: 0 15px;
        border-radius: 6px;
        text-decoration: none;
        color: inherit;
        font-weight: 500;
        transition: all 0.3s ease;
    }

    .articles-pagination .current {
        background: inherit;
        color: inherit;
        border-color: inherit;
    }

    .articles-pagination a.page-numbers:hover {
        background: inherit;
        border-color: inherit;
        color: inherit;
    }

    .articles-empty {
        display: flex;
        justify-content: center;
        align-items: center;
        min-height: 300px;
        text-align: center;
    }

    .articles-empty__content {
        max-width: 500px;
    }

    .articles-empty__title {
        font-size: 2rem;
        color: #333;
        margin-bottom: 15px;
    }

    .articles-empty__text {
        color: #666;
        margin-bottom: 25px;
        font-size: 1.1rem;
    }

    .articles-empty__link {
        display: inline-block;
        padding: 12px 30px;
        background: #0073aa;
        color: white;
        text-decoration: none;
        border-radius: 6px;
        font-weight: 600;
        transition: background 0.3s ease;
    }

    .articles-empty__link:hover {
        background: #005a87;
    }

    @media (max-width: 992px) {
        .article-item {
            flex: 1 1 calc(50% - 30px);
        }

        .articles-page-title {
            font-size: 2rem;
        }
    }

    @media (max-width: 768px) {
        .articles-grid {
            gap: 20px;
        }

        .article-item {
            flex: 1 1 100%;
        }

        .article-card__content {
            padding: 20px;
        }

        .article-card__image {
            height: 180px;
        }

        .articles-page-title {
            font-size: 1.8rem;
        }

        .article-meta {
            font-size: 0.8rem;
        }
    }

    @media (max-width: 480px) {
        .articles-container {
            padding: 0 15px;
        }

        .article-card__image {
            height: 160px;
        }

        .article-card__title {
            font-size: 1.2rem;
        }

        .articles-pagination .page-numbers {
            min-width: 35px;
            height: 35px;
            padding: 0 10px;
            font-size: 0.9rem;
        }
    }
/* ========================================
    1. CSS VARIABLES & RESET
======================================== */
:root {
    /* Font Families */
    --font-display: 'Barlow Condensed', sans-serif;
    --font-text: 'Inter', sans-serif;
    --font-mono: 'JetBrains Mono', monospace;
    
    /* Type Scale (1.25 ratio) */
    --text-xs: clamp(0.75rem, 0.7rem + 0.25vw, 0.875rem);
    --text-sm: clamp(0.875rem, 0.8rem + 0.375vw, 1rem);
    --text-base: clamp(1rem, 0.95rem + 0.25vw, 1.125rem);
    --text-lg: clamp(1.125rem, 1rem + 0.625vw, 1.375rem);
    --text-xl: clamp(1.25rem, 1.1rem + 0.75vw, 1.625rem);
    --text-2xl: clamp(1.5rem, 1.3rem + 1vw, 2rem);
    --text-3xl: clamp(1.875rem, 1.5rem + 1.875vw, 2.75rem);
    --text-4xl: clamp(2.25rem, 1.75rem + 2.5vw, 3.5rem);
    --text-5xl: clamp(2rem, 1.2rem + 3.5vw, 3.5rem);
    
    /* Line Heights */
    --leading-tight: 1.1;
    --leading-snug: 1.25;
    --leading-normal: 1.5;
    --leading-relaxed: 1.625;
    
    /* Colors - Light Mode */
    --color-accent: #2563EB;
    --color-accent-hover: #1D4ED8;
    --color-accent-light: #DBEAFE;
    --color-bg: #FFFFFF;
    --color-bg-subtle: #F8FAFC;
    --color-text: #0F172A;
    --color-text-muted: #64748B;
    --color-border: #E2E8F0;
    --color-border-dark: #CBD5E1;
    --color-success: #059669;
    --color-warning: #D97706;
    --color-error: #DC2626;
    
    /* Spacing */
    --section-gap: clamp(3rem, 5vw, 5rem);
    --content-max-width: 1050px;
    --content-padding: clamp(1rem, 3vw, 2rem);
}

@media (prefers-color-scheme: dark) {
    :root {
    --color-bg: #0F172A;
    --color-bg-subtle: #1E293B;
    --color-text: #F1F5F9;
    --color-text-muted: #94A3B8;
    --color-border: #334155;
    --color-border-dark: #475569;
    --color-accent-light: #1E3A5F;
    }
}

*,
*::before,
*::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-text);
    font-size: var(--text-base);
    line-height: var(--leading-relaxed);
    color: var(--color-text);
    background-color: var(--color-bg);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* ========================================
    2. GENERAL TYPOGRAPHY
======================================== */
h1 {
    font-family: var(--font-display);
    font-size: var(--text-5xl);
    font-weight: 800;
    line-height: var(--leading-tight);
    text-transform: uppercase;
    letter-spacing: -0.02em;
    color: var(--color-text);
    margin-bottom: 1.5rem;
    word-break: break-word;
    overflow-wrap: anywhere;
}

.um-navigation.active {
    background: var(--color-bg);
}

.um-sub-menu {
    position: absolute !important;
    top: 39px;
}

.um-burger[aria-expanded="true"] .um-burger__line:nth-child(3) {
transform: translateY(-11px) rotate(-45deg) !important;
}

.um-menu-link {
padding: 0.75rem 0.7rem !important;
}

h2 {
    font-family: var(--font-display);
    font-size: var(--text-3xl);
    font-weight: 700;
    line-height: var(--leading-snug);
    color: var(--color-text);
    margin-bottom: 1rem;
    scroll-margin-top: 2rem;
}

h3 {
    font-family: var(--font-text);
    font-size: var(--text-xl);
    font-weight: 600;
    line-height: var(--leading-snug);
    color: var(--color-text);
    margin-bottom: 0.75rem;
    scroll-margin-top: 2rem;
}

p {
    font-family: var(--font-text);
    font-size: var(--text-base);
    line-height: var(--leading-relaxed);
    color: var(--color-text);
    text-align: left;
    margin-bottom: 1.25rem;
}

p:last-child {
    margin-bottom: 0;
}

ul, ol {
    padding-left: 1.5rem;
    margin-bottom: 1.25rem;
}

li {
    font-family: var(--font-text);
    font-size: var(--text-base);
    line-height: var(--leading-relaxed);
    color: var(--color-text);
    text-align: left;
    margin-bottom: 0.5rem;
}

strong {
    font-weight: 600;
}

em {
    font-style: italic;
}

a {
    color: var(--color-accent);
    text-decoration: underline;
    text-underline-offset: 2px;
    transition: color 0.2s ease;
}

a:hover {
    color: var(--color-accent-hover);
}

a:focus {
    outline: 2px solid var(--color-accent);
    outline-offset: 2px;
}

blockquote {
    border-left: 3px solid var(--color-accent);
    padding-left: 1.5rem;
    margin: 1.5rem 0;
    font-style: italic;
    color: var(--color-text-muted);
}

table {
    width: 100%;
    border-collapse: collapse;
    margin: 1.5rem 0;
    font-family: var(--font-text);
    font-size: var(--text-sm);
}

th, td {
    padding: 0.75rem 1rem;
    text-align: left;
    border-bottom: 1px solid var(--color-border);
}

th {
    font-weight: 600;
    background-color: var(--color-bg-subtle);
    color: var(--color-text);
}

td {
    color: var(--color-text);
}

figure {
    margin: 2rem 0;
    max-width: 100%;
}

figcaption {
    font-family: var(--font-text);
    font-size: var(--text-sm);
    color: var(--color-text-muted);
    text-align: center;
    margin-top: 0.75rem;
}

/* ========================================
    3. LAYOUT - DATA-CONTENT SECTIONS
======================================== */
header {
    /* Empty header should not create visual gap */
}

main {
    width: 100%;
}

h1 { 
    text-align: center;
}

[data-content] {
    max-width: var(--content-max-width);
    margin-left: auto;
    margin-right: auto;
    padding-left: var(--content-padding);
    padding-right: var(--content-padding);
    padding-top: clamp(1.5rem, 1.5vw, 3rem);
    padding-bottom: 0;
}

[data-content]:last-of-type {
    padding-bottom: var(--section-gap);
}

[data-content] + [data-content] {
    padding-top: calc(var(--section-gap) * 0.75);
}

.um-header {
max-width: 1320px;
margin-left: auto;
margin-right: auto;
}

.breadcrumbs {
    margin-bottom: 1rem;
}

.breadcrumbs span {
    font-size: 1rem;
}

/* Images */
.hero-image,
.article-image {
    max-width: 100%;
    height: auto;
    display: block;
    margin: 0 auto;
}

.article-image {
    border-radius: 4px;
}

/* ========================================
    4. VISUAL COMPONENTS
======================================== */

/* --- info-box --- */
.info-box {
    background: var(--color-bg-subtle);
    border-left: 4px solid var(--color-accent);
    padding: 1.5rem;
    margin: 2rem 0;
}

.info-box p {
    font-family: var(--font-text);
    font-size: var(--text-base);
    color: var(--color-text-muted);
    text-align: left;
    margin-bottom: 0;
}

.info-box p strong {
    color: var(--color-text);
    font-weight: 700;
}

/* --- odds-example --- */
.odds-example {
    background: var(--color-text);
    color: var(--color-bg);
    padding: 1.5rem 2rem;
    border-radius: 8px;
    margin: 2rem 0;
}

@media (prefers-color-scheme: dark) {
    .odds-example {
    background: #1E293B;
    border: 1px solid var(--color-border);
    }
}

.odds-example p {
    font-family: var(--font-text);
    font-size: var(--text-base);
    color: var(--color-bg);
    text-align: center;
    margin-bottom: 1rem;
}

@media (prefers-color-scheme: dark) {
    .odds-example p {
    color: var(--color-text);
    }
}

.odds-example p strong {
    font-family: var(--font-display);
    font-size: var(--text-sm);
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--color-accent-light);
}

@media (prefers-color-scheme: dark) {
    .odds-example p strong {
    color: var(--color-accent);
    }
}

.odds-example table {
    margin: 0;
    background: transparent;
}

.odds-example th {
    background: transparent;
    color: var(--color-accent-light);
    border-bottom-color: rgba(255, 255, 255, 0.2);
    font-family: var(--font-text);
    font-size: var(--text-sm);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

@media (prefers-color-scheme: dark) {
    .odds-example th {
    color: var(--color-accent);
    border-bottom-color: var(--color-border);
    }
}

.odds-example td {
    color: var(--color-bg);
    border-bottom-color: rgba(255, 255, 255, 0.1);
    font-family: var(--font-mono);
}

@media (prefers-color-scheme: dark) {
    .odds-example td {
    color: var(--color-text);
    border-bottom-color: var(--color-border);
    }
}

.odds-example td:first-child {
    font-family: var(--font-text);
}

/* --- callout --- */
.callout {
    background: var(--color-accent-light);
    border: 1px solid var(--color-accent);
    border-radius: 8px;
    padding: 1.25rem 1.5rem;
    margin: 2rem 0;
}

.callout p {
    font-family: var(--font-text);
    font-size: var(--text-base);
    color: var(--color-text);
    text-align: left;
    margin-bottom: 0;
}

/* --- key-takeaway --- */
.key-takeaway {
    border-top: 3px solid var(--color-text);
    padding-top: 1.5rem;
    margin: 2.5rem 0;
}

.key-takeaway p {
    font-family: var(--font-display);
    font-size: var(--text-2xl);
    font-weight: 600;
    line-height: var(--leading-snug);
    color: var(--color-text);
    text-align: left;
    margin-bottom: 0;
}

/* --- at-a-glance --- */
.at-a-glance {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1px;
    background: var(--color-border);
    border: 1px solid var(--color-border);
    margin: 2rem 0;
}

.at-a-glance > div {
    background: var(--color-bg);
    padding: 1rem 1.25rem;
}

.at-a-glance p {
    font-family: var(--font-text);
    font-size: var(--text-sm);
    color: var(--color-text);
    text-align: left;
    margin-bottom: 0.25rem;
}

.at-a-glance p:last-child {
    color: var(--color-text-muted);
}

.at-a-glance p strong {
    font-family: var(--font-mono);
    font-size: var(--text-lg);
    font-weight: 600;
    color: var(--color-text);
}

/* --- comparison --- */
.comparison {
    margin: 2rem 0;
}

.comparison table {
    margin: 0;
}

.comparison th {
    background: var(--color-bg-subtle);
    font-family: var(--font-display);
    font-size: var(--text-base);
    font-weight: 700;
    color: var(--color-text);
}

.comparison td {
    font-family: var(--font-text);
    font-size: var(--text-sm);
    color: var(--color-text);
}

/* --- worked-example --- */
.worked-example {
    background: var(--color-bg-subtle);
    border-radius: 8px;
    padding: 2rem;
    margin: 2rem 0;
}

.worked-example p {
    font-family: var(--font-text);
    font-size: var(--text-base);
    color: var(--color-text);
    text-align: left;
    margin-bottom: 0.75rem;
}

.worked-example p:first-child {
    font-family: var(--font-display);
    font-size: var(--text-sm);
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--color-text-muted);
    margin-bottom: 1rem;
}

.worked-example p strong {
    font-family: var(--font-mono);
    color: var(--color-accent);
}

/* --- dos-donts --- */
.dos-donts {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1.5rem;
    margin: 2rem 0;
}

@media (max-width: 600px) {
    .dos-donts {
    grid-template-columns: 1fr;
    }
}

.dos-donts > div {
    padding: 1.5rem;
    border-radius: 8px;
}

.dos-donts > div:first-child {
    background: #ECFDF5;
    border: 1px solid var(--color-success);
}

.dos-donts > div:last-child {
    background: #FEF2F2;
    border: 1px solid var(--color-error);
}

@media (prefers-color-scheme: dark) {
    .dos-donts > div:first-child {
    background: rgba(5, 150, 105, 0.15);
    }
    .dos-donts > div:last-child {
    background: rgba(220, 38, 38, 0.15);
    }
}

.dos-donts p {
    font-family: var(--font-display);
    font-size: var(--text-base);
    font-weight: 700;
    margin-bottom: 0.75rem;
    text-align: left;
}

.dos-donts > div:first-child p strong {
    color: var(--color-success);
}

.dos-donts > div:last-child p strong {
    color: var(--color-error);
}

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

.dos-donts li {
    font-family: var(--font-text);
    font-size: var(--text-sm);
    color: var(--color-text);
    margin-bottom: 0.5rem;
    padding-left: 1.5rem;
    position: relative;
    text-align: left;
}

.dos-donts > div:first-child li::before {
    content: '✓';
    position: absolute;
    left: 0;
    color: var(--color-success);
    font-weight: 600;
}

.dos-donts > div:last-child li::before {
    content: '✕';
    position: absolute;
    left: 0;
    color: var(--color-error);
    font-weight: 600;
}

/* --- glossary-term --- */
.glossary-term {
    margin: 1rem 0;
}

.glossary-term p {
    display: inline;
    font-family: var(--font-text);
    font-size: var(--text-base);
    color: var(--color-text-muted);
    text-align: left;
    margin: 0;
}

.glossary-term p strong {
    font-family: var(--font-mono);
    font-size: var(--text-sm);
    color: var(--color-accent);
    text-decoration: underline;
    text-decoration-style: dotted;
    text-underline-offset: 3px;
    margin-right: 0.5rem;
}

/* --- fun-fact --- */
.fun-fact {
    position: relative;
    padding-left: 1.5rem;
    margin: 1.5rem 0;
}

.fun-fact::before {
    content: '—';
    position: absolute;
    left: 0;
    color: var(--color-accent);
    font-weight: 600;
}

.fun-fact p {
    font-family: var(--font-text);
    font-size: var(--text-base);
    font-style: italic;
    color: var(--color-text-muted);
    text-align: left;
    margin: 0;
}

/* --- pre-bet-checklist --- */
.pre-bet-checklist {
    margin: 2rem 0;
}

.pre-bet-checklist p {
    font-family: var(--font-display);
    font-size: var(--text-sm);
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--color-accent);
    margin-bottom: 1rem;
    text-align: left;
}

.pre-bet-checklist ul {
    list-style: none;
    padding-left: 1.5rem;
    margin: 0;
    border-left: 2px solid var(--color-border);
}

.pre-bet-checklist li {
    position: relative;
    font-family: var(--font-text);
    font-size: var(--text-base);
    color: var(--color-text);
    padding-left: 1.5rem;
    margin-bottom: 0.75rem;
    text-align: left;
}

.pre-bet-checklist li::before {
    content: '☐';
    position: absolute;
    left: -0.75rem;
    color: var(--color-accent);
    background: var(--color-bg);
    padding: 0 0.25rem;
}

/* --- card-grid --- */
.card-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 1.5rem;
    margin: 2rem 0;
}

.card-grid > div {
    background: var(--color-bg-subtle);
    border: 1px solid var(--color-border);
    border-radius: 8px;
    padding: 1.5rem;
    transition: box-shadow 0.2s ease;
}

.card-grid > div:hover {
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.08);
}

.card-grid p {
    font-family: var(--font-text);
    font-size: var(--text-sm);
    color: var(--color-text);
    text-align: left;
    margin-bottom: 0.5rem;
}

.card-grid p:last-child {
    color: var(--color-text-muted);
}

.card-grid p strong {
    font-family: var(--font-display);
    font-size: var(--text-lg);
    color: var(--color-text);
}

/* --- section-bridge --- */
.section-bridge {
    text-align: center;
    margin: 2rem 0;
    position: relative;
}

.section-bridge::before,
.section-bridge::after {
    content: '—';
    color: var(--color-accent);
    margin: 0 0.75rem;
}

.section-bridge p {
    display: inline;
    font-family: var(--font-display);
    font-size: var(--text-lg);
    font-style: italic;
    color: var(--color-accent);
    text-align: center;
    margin: 0;
}

/* ========================================
    5. HERO SECTION
======================================== */
[data-content="hero"] {
    max-width: none;
    width: 100%;
    padding: calc(var(--section-gap) * 0.3) var(--content-padding) var(--section-gap);
    background: var(--color-bg);
    text-align: center;
}

.hero-inner {
    max-width: var(--content-max-width);
    margin: 0 auto;
}

.hero-label {
    font-family: var(--font-display);
    font-size: var(--text-sm);
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.15em;
    color: var(--color-accent);
    margin-bottom: 1rem;
    text-align: center;
}

.hero-title {
    margin-bottom: 1.5rem;
}

.hero-subtitle {
    font-family: var(--font-text);
    font-size: var(--text-xl);
    font-weight: 400;
    line-height: var(--leading-normal);
    color: var(--color-text-muted);
    margin-bottom: 2rem;
    text-align: center;
}

.hero-divider {
    width: 60px;
    height: 3px;
    background: var(--color-accent);
    margin: 0 auto 2rem;
}

.hero-meta {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 1.5rem;
    flex-wrap: wrap;
    margin-bottom: 2.5rem;
}

.hero-meta time {
    font-family: var(--font-text);
    font-size: var(--text-sm);
    color: var(--color-text-muted);
}

.hero-badge {
    font-family: var(--font-text);
    font-size: var(--text-xs);
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--color-accent);
    background: var(--color-accent-light);
    padding: 0.375rem 0.75rem;
    border-radius: 4px;
}

.hero-figure {
    margin: 0 auto;
    max-width: 900px;
}

.hero-figure img {
    width: 100%;
    height: auto;
    display: block;
    border-radius: 8px;
}

.hero-figure figcaption {
    margin-top: 1rem;
}

/* ========================================
    6. TABLE OF CONTENTS (Horizontal)
======================================== */
[data-content="toc"] {
    max-width: none;
    width: 100%;
    padding: 1.5rem var(--content-padding);
    background: var(--color-bg-subtle);
    border-top: 1px solid var(--color-border);
    border-bottom: 1px solid var(--color-border);
}

.toc-inner {
    max-width: 1000px;
    margin: 0 auto;
}

.toc-label {
    font-family: var(--font-display);
    font-size: var(--text-xs);
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.15em;
    color: var(--color-text-muted);
    margin-bottom: 1rem;
    text-align: center;
}

.toc-links {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 0.5rem 1rem;
}

.toc-links a {
    font-family: var(--font-text);
    font-size: var(--text-sm);
    font-weight: 500;
    color: var(--color-text);
    text-decoration: none;
    padding: 0.5rem 1rem;
    border-radius: 4px;
    background: var(--color-bg);
    border: 1px solid var(--color-border);
    transition: all 0.2s ease;
}

.toc-links a:hover {
    color: var(--color-accent);
    border-color: var(--color-accent);
    transform: translateY(-1px);
}

.toc-links a:focus {
    outline: 2px solid var(--color-accent);
    outline-offset: 2px;
}

/* Start Reading Button */
.start-reading {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    font-family: var(--font-text);
    font-size: var(--text-base);
    font-weight: 600;
    color: var(--color-bg);
    background: var(--color-accent);
    padding: 0.875rem 1.75rem;
    border-radius: 6px;
    text-decoration: none;
    margin-top: 1.5rem;
    transition: all 0.2s ease;
}

.start-reading:hover {
    background: var(--color-accent-hover);
    transform: translateY(-2px);
    color: var(--color-bg);
}

.start-reading::after {
    content: '↓';
}

/* ========================================
    7. FAQ ACCORDION
======================================== */
[data-content="faq"] details {
    border-bottom: 1px solid var(--color-border);
    padding: 0;
    margin: 0;
}

[data-content="faq"] details:first-of-type {
    border-top: 1px solid var(--color-border);
}

[data-content="faq"] summary {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1.25rem 0;
    font-family: var(--font-text);
    font-size: var(--text-base);
    font-weight: 600;
    color: var(--color-text);
    cursor: pointer;
    list-style: none;
    transition: color 0.2s ease;
}

[data-content="faq"] summary::-webkit-details-marker {
    display: none;
}

[data-content="faq"] summary::after {
    content: '+';
    font-family: var(--font-mono);
    font-size: var(--text-lg);
    font-weight: 400;
    color: var(--color-accent);
    transition: transform 0.3s ease;
}

[data-content="faq"] details[open] summary::after {
    transform: rotate(45deg);
}

[data-content="faq"] summary:hover {
    color: var(--color-accent);
}

[data-content="faq"] summary:focus {
    outline: 2px solid var(--color-accent);
    outline-offset: 2px;
}

/* Modern CSS animation for details content */
[data-content="faq"] details div {
animation-duration: 0.35s;
animation-fill-mode: both;
}

[data-content="faq"] details[open] div {
animation-name: faqOpen;
}

[data-content="faq"] details:not([open]) div {
animation-name: faqClose;
}

@keyframes faqOpen {
from {
    opacity: 0;
    transform: translateY(-10px);
    max-height: 0;
}
to {
    opacity: 1;
    transform: translateY(0);
    max-height: 1000px;
}
}

@keyframes faqClose {
from {
    opacity: 1;
    transform: translateY(0);
    max-height: 1000px;
}
to {
    opacity: 0;
    transform: translateY(-10px);
    max-height: 0;
}
}

[data-content="faq"] details > div {
    padding-bottom: 1.25rem;
}

[data-content="faq"] details > div > p {
    font-family: var(--font-text);
    font-size: var(--text-base);
    color: var(--color-text-muted);
    text-align: left;
    margin: 0;
}

@supports not selector(::details-content) {
@keyframes fade-in {
from {
    opacity: 0;
    transform: translateY(-8px);
}
to {
    opacity: 1;
    transform: translateY(0);
}
}

[data-content="faq"] details[open] > *:not(summary) {
animation: fade-in 0.3s ease forwards;
}
}

/* Footer */
footer {
max-width: 1380px;
margin: 0 auto;
padding: 2rem var(--content-padding);
border-top: 1px solid var(--color-border);
font-family: var(--font-text);
font-size: var(--text-xs);
color: var(--color-text-muted);
text-align: left;
}
@media (max-width: 768px) {
    h1 {
    font-size: var(--text-4xl);
    }

    h2 {
    font-size: var(--text-2xl);
    }

    .hero-meta {
    flex-direction: column;
    gap: 0.75rem;
    }

    .toc-links {
    gap: 0.5rem;
    }

    .toc-links a {
    font-size: var(--text-xs);
    padding: 0.375rem 0.75rem;
    }

    .comparison {
    overflow-x: auto;
    }

    .at-a-glance {
    grid-template-columns: 1fr;
    }
}

.footer-grid {
display: grid;
grid-template-columns: repeat(4, 1fr);
gap: 2rem;
margin-bottom: 2rem;
}

.footer-grid section h3 {
    text-align: center;
}

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

.footer-grid section li {
margin-bottom: 0.4rem;
font-size: var(--text-sm);
color: var(--color-text-muted);
text-align: center;
}

.footer-grid section a {
text-decoration: none;
color: var(--color-text-muted);
}

.footer-grid section a:hover {
color: var(--color-accent);
}

.footer-copy {
border-top: 1px solid var(--color-border);
padding-top: 1rem;
font-size: var(--text-xs);
color: var(--color-text-muted);
text-align: center;
}

/* Mobile */
@media (max-width: 768px) {
.footer-grid {
    grid-template-columns: 1fr 1fr;
}
}

@media (max-width: 480px) {
.footer-grid {
    grid-template-columns: 1fr;
}
}

.hero-figure {
margin: 0 auto;
max-width: 900px;
}

.hero-figure img.hero-image {
width: 100%;
height: auto;
display: block;
border-radius: 8px;
box-shadow: 0 4px 20px rgba(0, 0, 0, 0.1);
}

.hero-figure figcaption {
font-family: var(--font-text, 'Inter', sans-serif);
font-size: clamp(0.75rem, 0.7rem + 0.25vw, 0.875rem);
color: var(--color-text-muted, #64748B);
text-align: center;
margin-top: 1rem;
}

/* Article Images */
.article-image {
margin: 2rem 0;
text-align: center;
}

.article-image img {
max-width: 100%;
height: auto;
display: block;
margin: 0 auto;
border-radius: 8px;
box-shadow: 0 2px 12px rgba(0, 0, 0, 0.08);
transition: box-shadow 0.3s ease;
}

.article-image img:hover {
box-shadow: 0 4px 20px rgba(0, 0, 0, 0.12);
}

.article-image figcaption {
font-family: var(--font-text, 'Inter', sans-serif);
font-size: clamp(0.75rem, 0.7rem + 0.25vw, 0.875rem);
color: var(--color-text-muted, #64748B);
text-align: center;
margin-top: 0.75rem;
font-style: italic;
}

/* Dark Mode */
@media (prefers-color-scheme: dark) {
.hero-figure img.hero-image,
.article-image img {
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.3);
}

.article-image img:hover {
    box-shadow: 0 6px 24px rgba(0, 0, 0, 0.4);
}

.hero-figure figcaption,
.article-image figcaption {
    color: var(--color-text-muted, #94A3B8);
}
}

/* Responsive */
@media (max-width: 768px) {
.hero-figure {
    max-width: 100%;
}

.article-image {
    margin: 1.5rem 0;
}

.hero-figure img.hero-image,
.article-image img {
    border-radius: 6px;
}
}

.footer-navigation {
display: none;
}