:root {
    --color-primary: #1a5f3c;
    --color-primary-dark: #0d3d24;
    --color-primary-light: #2a7a50;
    --color-secondary: #1e3a5f;
    --color-secondary-light: #2a4d7a;
    --color-accent: #d4a84b;
    --color-accent-hover: #e6bc5f;
    --color-bg: #fafaf8;
    --color-bg-alt: #f0efe9;
    --color-surface: #ffffff;
    --color-text: #2c2c2c;
    --color-text-muted: #5a5a5a;
    --color-text-light: #787878;
    --color-border: #e0ddd5;
    --color-border-light: #eae8e2;
    --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 30px rgba(0, 0, 0, 0.12);
    --shadow-accent: 0 4px 20px rgba(212, 168, 75, 0.25);
    --radius-sm: 4px;
    --radius-md: 8px;
    --radius-lg: 16px;
    --font-sans: 'Segoe UI', system-ui, -apple-system, sans-serif;
    --font-serif: Georgia, 'Times New Roman', serif;
    --line-height-tight: 1.3;
    --line-height-base: 1.7;
    --line-height-relaxed: 1.85;
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 1.5rem;
    --spacing-lg: 2.5rem;
    --spacing-xl: 4rem;
    --spacing-2xl: 6rem;
    --max-width-content: 720px;
    --max-width-wide: 900px;
    --transition-fast: 0.15s ease;
    --transition-base: 0.25s ease;
    --transition-slow: 0.4s ease;
}

@media (prefers-color-scheme: dark) {
    :root {
        --color-primary: #3d9e6a;
        --color-primary-dark: #2d7a50;
        --color-primary-light: #4db87a;
        --color-secondary: #4a7ab0;
        --color-secondary-light: #5a8dc5;
        --color-accent: #e6bc5f;
        --color-accent-hover: #f0cc78;
        --color-bg: #141414;
        --color-bg-alt: #1a1a1a;
        --color-surface: #1e1e1e;
        --color-text: #e8e8e8;
        --color-text-muted: #a8a8a8;
        --color-text-light: #888888;
        --color-border: #333333;
        --color-border-light: #2a2a2a;
        --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.3);
        --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.4);
        --shadow-lg: 0 8px 30px rgba(0, 0, 0, 0.5);
    }
}

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

html {
    scroll-behavior: smooth;
    -webkit-text-size-adjust: 100%;
}

body {
    margin: 0;
    font-family: var(--font-sans);
    font-size: clamp(1rem, 0.95rem + 0.25vw, 1.125rem);
    line-height: var(--line-height-base);
    color: var(--color-text);
    background: var(--color-bg);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

main {
    max-width: var(--max-width-wide);
    margin: 0 auto;
    padding: var(--spacing-2xl) var(--spacing-md);
}

img {
    width: 100%;
    height: auto;
}

.breadcrumbs {
    margin: 25px 0;
}

footer::before {
    content: '';
    display: block;
    height: 3px;
    margin-bottom: var(--spacing-lg);
    background: linear-gradient(90deg, var(--color-accent) 0%, var(--color-primary-light) 50%, var(--color-accent) 100%);
}

/* Typography */
h1,
h2,
h3,
h4,
h5,
h6 {
    font-family: var(--font-sans);
    font-weight: 700;
    line-height: var(--line-height-tight);
    color: var(--color-text);
    margin: 0;
}

h1 {
    font-size: clamp(1.875rem, 1.5rem + 1.5vw, 2.75rem);
    letter-spacing: -0.02em;
    margin-bottom: var(--spacing-md);
    background: linear-gradient(135deg, var(--color-primary-dark) 0%, var(--color-secondary) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

main p {
    margin: 0 0 var(--spacing-md);
    text-align: justify;
    hyphens: auto;
}

@media (prefers-color-scheme: dark) {
    h1 {
        background: linear-gradient(135deg, var(--color-primary-light) 0%, var(--color-accent) 100%);
        -webkit-background-clip: text;
        background-clip: text;
    }
}

h2, .toc-wrap__title {
    font-size: clamp(1.5rem, 1.25rem + 1vw, 2rem);
    margin-top: var(--spacing-xl);
    margin-bottom: var(--spacing-md);
    padding-left: var(--spacing-md);
    border-left: 4px solid var(--color-primary);
    position: relative;
}

h2::before {
    content: '';
    position: absolute;
    left: -4px;
    top: 0;
    width: 4px;
    height: 100%;
    background: linear-gradient(180deg, var(--color-accent) 0%, var(--color-primary) 100%);
}

h3 {
    font-size: clamp(1.25rem, 1.1rem + 0.6vw, 1.5rem);
    margin-top: var(--spacing-lg);
    margin-bottom: var(--spacing-sm);
    color: var(--color-primary);
}

@media (prefers-color-scheme: dark) {
    h3 {
        color: var(--color-primary-light);
    }
}

p {
    margin: 0 0 var(--spacing-md);
}

strong {
    font-weight: 600;
    color: var(--color-text);
}

em {
    font-style: italic;
    color: var(--color-text-muted);
}

a {
    color: var(--color-primary);
    text-decoration: underline;
    text-underline-offset: 3px;
    transition: color var(--transition-fast), text-decoration-color var(--transition-fast);
}

a:hover {
    color: var(--color-primary-light);
    text-decoration-color: var(--color-primary-light);
}

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

/* Lists */
ul,
ol {
    margin: 0 0 var(--spacing-md);
    max-width: var(--max-width-content);
    list-style-type: none;
}

li {
    margin-bottom: var(--spacing-xs);
    padding-left: var(--spacing-xs);
}

ul li::marker {
    color: var(--color-accent);
}

ol li::marker {
    color: var(--color-primary);
    font-weight: 600;
}

/* Blockquote */
blockquote {
    margin: var(--spacing-lg) 0;
    padding: var(--spacing-md) var(--spacing-lg);
    background: linear-gradient(135deg, var(--color-bg-alt) 0%, var(--color-surface) 100%);
    border-left: 4px solid var(--color-accent);
    border-radius: 0 var(--radius-md) var(--radius-md) 0;
    box-shadow: var(--shadow-sm);
    font-style: italic;
    color: var(--color-text-muted);
    max-width: var(--max-width-content);
    position: relative;
}

blockquote::before {
    content: '\201C';
    position: absolute;
    top: -10px;
    left: 15px;
    font-size: 4rem;
    font-family: var(--font-serif);
    color: var(--color-accent);
    opacity: 0.3;
    line-height: 1;
}

blockquote p {
    margin-bottom: 0;
}

/* Figures and Images */
figure {
    margin: var(--spacing-lg) 0;
    padding: 0;
}

figcaption {
    margin-top: var(--spacing-sm);
    font-size: 0.875rem;
    color: var(--color-text-light);
    text-align: center;
    font-style: italic;
}

.hero-image {
    width: 100%;
    max-width: var(--max-width-wide);
    height: auto;
    aspect-ratio: 21/9;
    object-fit: cover;
    border-radius: var(--radius-lg);
    margin-bottom: var(--spacing-lg);
}

.article-image {
    width: 100%;
    height: auto;
    border-radius: var(--radius-md);
    transition: transform var(--transition-base), box-shadow var(--transition-base);
}

.article-image:hover {
    transform: scale(1.02);
    box-shadow: var(--shadow-lg);
}

/* Tables */
table {
    width: 100%;
    max-width: var(--max-width-content);
    margin: var(--spacing-lg) 0;
    border-collapse: collapse;
    background: var(--color-surface);
    border-radius: var(--radius-md);
    overflow: hidden;
    box-shadow: var(--shadow-md);
}

thead {
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-secondary) 100%);
    color: white;
}

th {
    padding: var(--spacing-sm) var(--spacing-md);
    text-align: left;
    font-weight: 600;
    text-transform: uppercase;
    font-size: 0.8rem;
    letter-spacing: 0.05em;
}

td {
    padding: var(--spacing-sm) var(--spacing-md);
    border-bottom: 1px solid var(--color-border-light);
}

tbody tr {
    transition: background-color var(--transition-fast);
}

tbody tr:hover {
    background: var(--color-bg-alt);
}

tbody tr:last-child td {
    border-bottom: none;
}

/* Code */
code {
    font-family: 'Consolas', 'Monaco', monospace;
    font-size: 0.9em;
    padding: 0.2em 0.4em;
    background: var(--color-bg-alt);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-sm);
}

pre {
    margin: var(--spacing-lg) 0;
    padding: var(--spacing-md);
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    overflow-x: auto;
    box-shadow: var(--shadow-sm);
}

pre code {
    padding: 0;
    background: none;
    border: none;
}

/* Horizontal Rule */
hr {
    border: none;
    height: 2px;
    background: linear-gradient(90deg, transparent 0%, var(--color-border) 20%, var(--color-accent) 50%, var(--color-border) 80%, transparent 100%);
    margin: var(--spacing-xl) auto;
    max-width: 200px;
}

/* Table of Contents Navigation */
nav[aria-label="Indice"] {
    margin: var(--spacing-lg) 0;
    padding: var(--spacing-md);
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-sm);
    max-width: var(--max-width-content);
}

nav[aria-label="Indice"] ol {
    list-style: none;
    padding: 0;
    margin: 0;
    counter-reset: toc;
}

nav[aria-label="Indice"] li {
    counter-increment: toc;
    padding: var(--spacing-xs) 0;
    border-bottom: 1px solid var(--color-border-light);
}

nav[aria-label="Indice"] li:last-child {
    border-bottom: none;
}

nav[aria-label="Indice"] a {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    text-decoration: none;
    color: var(--color-text-muted);
    padding: var(--spacing-xs);
    border-radius: var(--radius-sm);
    transition: all var(--transition-fast);
}

nav[aria-label="Indice"] a::before {
    content: counter(toc, decimal-leading-zero);
    font-size: 0.8rem;
    font-weight: 700;
    color: var(--color-accent);
    min-width: 1.5rem;
}

nav[aria-label="Indice"] a:hover {
    color: var(--color-primary);
    background: var(--color-bg-alt);
    transform: translateX(4px);
}

/* FAQ Styles */
details {
    margin: var(--spacing-md) 0;
    padding: var(--spacing-md);
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    max-width: var(--max-width-content);
    transition: box-shadow var(--transition-base);
}

details:hover {
    box-shadow: var(--shadow-md);
}

details[open] {
    box-shadow: var(--shadow-md);
    border-color: var(--color-primary);
}

summary {
    font-weight: 600;
    color: var(--color-primary);
    cursor: pointer;
    padding: var(--spacing-xs) 0;
    list-style: none;
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

summary::-webkit-details-marker {
    display: none;
}

summary::before {
    content: '+';
    display: flex;
    align-items: center;
    justify-content: center;
    width: 24px;
    height: 24px;
    background: var(--color-accent);
    color: white;
    border-radius: 50%;
    font-size: 1.2rem;
    font-weight: 700;
    transition: transform var(--transition-base), background-color var(--transition-base);
}

details[open] summary::before {
    content: '-';
    transform: rotate(180deg);
    background: var(--color-primary);
}

summary:focus {
    outline: 2px solid var(--color-accent);
    outline-offset: 2px;
    border-radius: var(--radius-sm);
}

/* Callout Boxes */
aside {
    margin: var(--spacing-lg) 0;
    padding: var(--spacing-md);
    background: linear-gradient(135deg, rgba(26, 95, 60, 0.08) 0%, rgba(30, 58, 95, 0.08) 100%);
    border-left: 4px solid var(--color-primary);
    border-radius: 0 var(--radius-md) var(--radius-md) 0;
    max-width: var(--max-width-content);
}

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

/* Scroll to top indicator */
@keyframes pulse {

    0%,
    100% {
        opacity: 1;
    }

    50% {
        opacity: 0.6;
    }
}

/* Selection */
::selection {
    background: var(--color-accent);
    color: var(--color-primary-dark);
}

/* Scrollbar */
::-webkit-scrollbar {
    width: 10px;
    height: 10px;
}

::-webkit-scrollbar-track {
    background: var(--color-bg-alt);
}

::-webkit-scrollbar-thumb {
    background: var(--color-primary);
    border-radius: 5px;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--color-primary-light);
}

/* Print Styles */
@media print {

    header,
    footer {
        display: none;
    }

    main {
        max-width: 100%;
        padding: 0;
    }

    h1,
    h2,
    h3 {
        page-break-after: avoid;
    }

    figure,
    table,
    blockquote {
        page-break-inside: avoid;
    }

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

    a[href]::after {
        content: ' (' attr(href) ')';
        font-size: 0.8em;
        color: var(--color-text-muted);
    }
}

/* Responsive Adjustments */
@media (max-width: 768px) {
    main {
        padding: var(--spacing-md) var(--spacing-sm);
    }

    h2 {
        padding-left: var(--spacing-sm);
    }

    blockquote {
        padding: var(--spacing-sm) var(--spacing-md);
        margin-left: 0;
        margin-right: 0;
    }

    blockquote::before {
        font-size: 2.5rem;
        top: -5px;
        left: 10px;
    }

    table {
        font-size: 0.875rem;
    }

    th,
    td {
        padding: var(--spacing-xs) var(--spacing-sm);
    }

    nav[aria-label="Indice"] a::before {
        display: none;
    }
}

@media (max-width: 480px) {
    :root {
        --spacing-lg: 2rem;
        --spacing-xl: 3rem;
    }

    h1 {
        padding-bottom: var(--spacing-sm);
    }

    h2 {
        margin-top: var(--spacing-lg);
    }

    .hero-image {
        aspect-ratio: 16/9;
        border-radius: var(--radius-md);
    }
}

/* Reduced Motion */
@media (prefers-reduced-motion: reduce) {

    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }

    html {
        scroll-behavior: auto;
    }
}