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

:root {
    /* Color Palette - Slate & Blue (Premium Tech Feel) */
    --color-bg-body: #f8fafc;
    --color-bg-card: #ffffff;
    --color-bg-header: #0f172a;
    --color-bg-code: #1e293b;

    --color-text-primary: #1e293b;
    --color-text-secondary: #7a8fad;
    --color-text-inverted: #f1f5f9;

    --color-primary: #2563eb;
    --color-primary-hover: #1d4ed8;
    --color-accent: #f59e0b;

    --color-border: #e2e8f0;

    /* Typography */
    --font-family-base: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
    --font-family-mono: 'Fira Code', 'Roboto Mono', monospace;

    /* Spacing */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 1.5rem;
    --spacing-lg: 2rem;
    --spacing-xl: 3rem;

    /* Border Radius */
    --radius-sm: 4px;
    --radius-md: 8px;
    --radius-lg: 12px;

    /* Shadows */
    --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
    --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.1), 0 2px 4px -2px rgb(0 0 0 / 0.1);
    --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.1), 0 4px 6px -4px rgb(0 0 0 / 0.1);
}

/* Base Styles */
body {
    font-family: var(--font-family-base);
    background-color: var(--color-bg-body);
    color: var(--color-text-primary);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
}

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

a {
    color: var(--color-primary);
    text-decoration: none;
    transition: color 0.2s;
}

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

/* Typography */
h1,
h2,
h3,
h4,
h5,
h6 {
    color: var(--color-text-primary);
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: var(--spacing-sm);
}

h1 {
    font-size: 2rem;
}

h2 {
    font-size: 1.75rem;
    border-bottom: 2px solid var(--color-border);
    padding-bottom: var(--spacing-xs);
}

h3 {
    font-size: 1.5rem;
    margin-top: var(--spacing-md);
}

p {
    margin-bottom: var(--spacing-sm);
    color: var(--color-text-secondary);
}

/* Layout Utilities */
.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-sm);
}

/* Header & Navigation */
/* MODIFIED: Changed header to .site-header to prevent collision */
.site-header {
    background-color: var(--color-bg-header);
    color: var(--color-text-inverted);
    position: sticky;
    top: 0;
    z-index: 1000;
    box-shadow: var(--shadow-md);
}

.site-header .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-top: var(--spacing-sm);
    padding-bottom: var(--spacing-sm);
}

.logo {
    font-size: 1.25rem;
    font-weight: 800;
    color: var(--color-text-inverted);
    text-decoration: none;
    display: flex;
    align-items: center;
}

.logo:hover {
    color: var(--color-primary);
    text-decoration: none;
}

.logo-img {
    height: 36px;
    width: auto;
    max-width: 160px;
    object-fit: contain;
}

@media (min-width: 768px) {
    .logo-img {
        height: 40px;
        max-width: 220px;
    }
}

/* Mobile Menu Button */
.menu-toggle {
    display: block;
    background: none;
    border: none;
    color: var(--color-text-inverted);
    font-size: 1.5rem;
    cursor: pointer;
    padding: var(--spacing-xs);
}

/* Mobile Navigation */
nav {
    position: absolute;
    top: 100%;
    left: 0;
    width: 100%;
    background-color: var(--color-bg-header);
    padding: var(--spacing-sm);
    display: none;
    /* Hidden by default */
    flex-direction: column;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
}

nav.active {
    display: flex;
    animation: slideDown 0.3s ease-out;
}

@keyframes slideDown {
    from {
        opacity: 0;
        transform: translateY(-10px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

nav ul {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

nav a {
    color: var(--color-text-inverted);
    font-weight: 500;
    display: block;
    padding: var(--spacing-xs) 0;
}

nav a:hover {
    color: var(--color-primary);
    text-decoration: none;
    padding-left: var(--spacing-xs);
    /* Fun interaction */
}

/* Dropdown Styles */
.dropdown {
    position: relative;
}

.dropdown-content {
    display: none;
    padding-left: var(--spacing-md);
    /* Indent on mobile */
    background-color: rgba(255, 255, 255, 0.05);
    border-radius: var(--radius-sm);
    margin-top: var(--spacing-xs);
}

.dropdown-content a {
    font-size: 0.9rem;
    color: var(--color-text-secondary);
}

.dropdown-content a:hover {
    color: var(--color-primary);
}

/* Mobile Dropdown - Click to toggle */
.dropdown>a {
    cursor: pointer;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.dropdown.active .dropdown-content {
    display: block;
}

/* Card Component */
section {
    background: var(--color-bg-card);
    border-radius: var(--radius-md);
    padding: var(--spacing-md);
    margin-bottom: var(--spacing-md);
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--color-border);
}

/* Lists */
ul,
ol {
    margin-left: var(--spacing-lg);
    margin-bottom: var(--spacing-sm);
    color: var(--color-text-secondary);
}

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

/* Code Blocks & Commands */
code {
    background-color: var(--color-border);
    /* Light gray for inline code */
    padding: 0.2em 0.4em;
    border-radius: 4px;
    font-family: var(--font-family-mono);
    font-size: 0.9em;
    color: #e11d48;
    /* Reddish for contrast */
}

.command {
    background-color: var(--color-bg-code);
    color: var(--color-text-inverted);
    padding: var(--spacing-sm);
    border-radius: var(--radius-md);
    margin-bottom: var(--spacing-sm);
    display: flex;
    justify-content: space-between;
    align-items: center;
    box-shadow: inset 0 2px 4px rgba(0, 0, 0, 0.3);
    flex-wrap: wrap;
    gap: var(--spacing-xs);
}

.command code {
    background-color: transparent;
    color: #a5b4fc;
    /* Light indigo used in terminal */
    font-size: 1rem;
    overflow-x: auto;
}

.copy-btn {
    background-color: rgba(255, 255, 255, 0.1);
    border: 1px solid rgba(255, 255, 255, 0.2);
    color: var(--color-text-inverted);
    padding: var(--spacing-xs) var(--spacing-sm);
    border-radius: var(--radius-sm);
    cursor: pointer;
    font-size: 0.875rem;
    transition: all 0.2s;
    white-space: nowrap;
}

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

.copy-btn.copied {
    background-color: #10b981;
    /* Green */
    border-color: #10b981;
}

/* Tables */
.table-container {
    overflow-x: auto;
    margin-bottom: var(--spacing-md);
}

table {
    width: 100%;
    border-collapse: collapse;
    min-width: 600px;
    /* Force scroll on small screens */
}

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

th {
    background-color: #f1f5f9;
    font-weight: 600;
}

/* Footer */
footer {
    background-color: var(--color-bg-header);
    color: var(--color-text-secondary);
    text-align: center;
    padding: var(--spacing-lg) 0;
    margin-top: var(--spacing-xl);
}

/* Donation Button */
.center-button {
    text-align: center;
    margin: var(--spacing-xl) 0;
}

.botao-doacao {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    background-color: var(--color-accent);
    color: #fff;
    font-weight: 700;
    text-transform: uppercase;
    padding: 1rem 2rem;
    border-radius: 50px;
    box-shadow: var(--shadow-lg);
    transition: transform 0.2s, box-shadow 0.2s;
    text-decoration: none;
}

.botao-doacao:hover {
    transform: translateY(-2px);
    box-shadow: 0 20px 25px -5px rgb(0 0 0 / 0.1), 0 8px 10px -6px rgb(0 0 0 / 0.1);
    color: #fff;
    text-decoration: none;
}

.texto-doacao {
    margin-top: var(--spacing-sm);
    color: var(--color-text-secondary);
    text-align: center;
    font-size: 0.95rem;
}

.donation-options {
    display: grid;
    gap: var(--spacing-md);
}

.donation-option {
    padding: var(--spacing-md);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    background: linear-gradient(180deg, #ffffff 0%, #f8fafc 100%);
    box-shadow: var(--shadow-sm);
}

.donation-option h4 {
    margin-bottom: var(--spacing-xs);
}

.donation-links {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-sm);
    justify-content: center;
    margin-top: var(--spacing-sm);
}

/* Página Quem Sou */
.about-grid {
    display: grid;
    gap: var(--spacing-md);
}

.profile-figure,
.campus-figure {
    margin: 0;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    padding: var(--spacing-sm);
    background: linear-gradient(180deg, #ffffff 0%, #f8fafc 100%);
}

.profile-figure img,
.campus-figure img {
    border-radius: var(--radius-sm);
    border: 1px solid var(--color-border);
}

.profile-figure figcaption,
.campus-figure figcaption {
    margin-top: var(--spacing-xs);
    color: var(--color-text-secondary);
    font-size: 0.92rem;
}

.evidence-grid {
    display: grid;
    gap: var(--spacing-md);
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
}

.evidence-card {
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    padding: var(--spacing-md);
    background: linear-gradient(180deg, #ffffff 0%, #f8fafc 100%);
    box-shadow: var(--shadow-sm);
}

.evidence-card h3 {
    margin-top: 0;
}

.quote {
    border-left: 4px solid var(--color-accent);
    background: rgba(245, 158, 11, 0.08);
    padding: var(--spacing-sm);
    border-radius: var(--radius-sm);
    color: var(--color-text-primary);
    font-style: italic;
}

.evidence-card picture,
.evidence-card img {
    display: block;
    margin: var(--spacing-sm) auto 0;
    border-radius: var(--radius-sm);
}

.evidence-card img {
    width: min(100%, 360px);
    border: 1px solid var(--color-border);
    box-shadow: var(--shadow-sm);
}

.articles-grid {
    display: grid;
    gap: var(--spacing-md);
}

.post-preview {
    padding: var(--spacing-md);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    background-color: var(--color-bg-card);
    box-shadow: var(--shadow-sm);
}

.post-preview h3 {
    margin-top: 0;
    margin-bottom: var(--spacing-xs);
}

.post-meta {
    color: var(--color-text-secondary);
    font-size: 0.9rem;
    margin-bottom: var(--spacing-xs);
    text-transform: uppercase;
    letter-spacing: 0.04em;
}

.read-more {
    display: inline-flex;
    align-items: center;
    gap: 0.35rem;
    font-weight: 600;
    margin-top: var(--spacing-xs);
}

.btn,
#expand-btn,
#download-btn,
#chunker-form button[type="submit"] {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    padding: 0.8rem 1.2rem;
    border-radius: var(--radius-md);
    border: 1px solid transparent;
    font: inherit;
    font-weight: 600;
    cursor: pointer;
    transition: background-color 0.2s, border-color 0.2s, transform 0.2s;
}

.btn:hover,
#expand-btn:hover,
#download-btn:hover,
#chunker-form button[type="submit"]:hover {
    transform: translateY(-1px);
}

.btn-primary,
#chunker-form button[type="submit"] {
    background-color: var(--color-primary);
    color: #fff;
    border-color: var(--color-primary);
}

.btn-primary:hover,
#chunker-form button[type="submit"]:hover {
    background-color: var(--color-primary-hover);
    border-color: var(--color-primary-hover);
}

.btn-secondary,
#download-btn,
#expand-btn {
    background-color: #fff;
    color: var(--color-text-primary);
    border-color: var(--color-border);
}

.btn-secondary:hover,
#download-btn:hover,
#expand-btn:hover {
    border-color: var(--color-primary);
    color: var(--color-primary);
}

#chunker-form {
    display: grid;
    gap: var(--spacing-sm);
}

#chunker-form .form-field {
    display: grid;
    gap: var(--spacing-xs);
    margin-bottom: var(--spacing-sm);
}

#chunker-form label {
    display: block;
    font-weight: 600;
}

#chunker-form textarea,
#chunker-form input[type="number"] {
    font: inherit;
    padding: 0.75rem;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-sm);
    background-color: #fff;
}

#chunker-form textarea {
    width: 100%;
    min-height: 12rem;
    resize: vertical;
}

#chunker-form input[type="number"] {
    width: 150px;
}

#chunks-output-container {
    margin-top: var(--spacing-lg);
}

#expand-collapse-container {
    margin-top: var(--spacing-sm);
}

.chunk-output {
    margin-bottom: var(--spacing-sm);
    padding: var(--spacing-sm);
    background-color: #f8f9fa;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-sm);
}

.chunk-output__content {
    margin: 0;
    white-space: pre-wrap;
}

.chunker-error {
    color: #e74c3c;
}

.gif-container {
    max-width: 100%;
    margin: var(--spacing-md) 0;
    text-align: center;
}

.gif-container img {
    max-width: 100%;
    height: auto;
}

.gif-caption {
    margin-top: var(--spacing-xs);
    font-style: italic;
    color: var(--color-text-secondary);
}

.mentor-banner {
    width: 100%;
    height: auto;
}

.article-header-placeholder {
    height: 70px;
    width: 100%;
    position: sticky;
    top: 0;
    z-index: 999;
    background-color: var(--color-bg-header);
    border-bottom: 1px solid var(--color-border);
}

.article-container {
    max-width: 800px;
    margin: 0 auto var(--spacing-md);
    padding: var(--spacing-lg) var(--spacing-sm);
    line-height: 1.8;
    background-color: var(--color-bg-card);
    border-radius: var(--radius-md);
    margin-top: var(--spacing-sm);
}

#article-cover {
    width: 100%;
    height: auto;
    border-radius: var(--radius-md);
    margin-bottom: var(--spacing-md);
    display: none;
    box-shadow: var(--shadow-sm);
}

.article-container img {
    max-width: 100%;
    height: auto;
    border-radius: var(--radius-md);
    margin: var(--spacing-md) 0;
    box-shadow: var(--shadow-sm);
}

.article-header {
    text-align: center;
    margin-bottom: var(--spacing-lg);
}

.article-meta {
    color: var(--color-text-secondary);
    font-size: 0.9em;
    margin-bottom: var(--spacing-md);
    padding-bottom: var(--spacing-sm);
    border-bottom: 1px solid var(--color-border);
}

.article-content h1,
.article-content h2,
.article-content h3 {
    margin-top: 1.5em;
    color: var(--color-text-primary);
}

.article-content a {
    color: var(--color-primary);
    text-decoration: none;
    font-weight: 500;
}

.article-content a:hover {
    text-decoration: underline;
    color: var(--color-primary-hover);
}

.article-content blockquote {
    border-left: 4px solid var(--color-accent);
    margin: var(--spacing-md) 0;
    padding: var(--spacing-sm) var(--spacing-md);
    color: var(--color-text-secondary);
    background: rgba(245, 158, 11, 0.1);
    border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
}

.article-content pre {
    background: #f6f8fa;
    padding: var(--spacing-sm);
    border-radius: var(--radius-md);
    overflow-x: auto;
    margin: var(--spacing-md) 0;
    border: 1px solid var(--color-border);
}

.article-content code {
    font-family: var(--font-family-mono);
    font-size: 0.9em;
}

.article-content p code,
.article-content li code {
    background: var(--color-border);
    padding: 2px 6px;
    border-radius: 4px;
    color: #d63384;
    font-size: 0.9em;
}

.article-container .nav-buttons {
    margin-top: var(--spacing-xl);
    border-top: 1px solid var(--color-border);
    padding-top: var(--spacing-md);
}

.loading-text {
    text-align: center;
    color: var(--color-text-secondary);
    padding: var(--spacing-xl);
}

/* Utilities */
.text-center {
    text-align: center;
}

.mt-4 {
    margin-top: 1rem;
}

.mb-4 {
    margin-bottom: 1rem;
}

/* Navigation Buttons (Prev/Next) */
.nav-buttons {
    display: flex;
    justify-content: space-between;
    margin-top: var(--spacing-lg);
    gap: var(--spacing-sm);
}

.nav-button {
    flex: 1;
    text-align: center;
    background-color: var(--color-bg-card);
    border: 1px solid var(--color-border);
    padding: var(--spacing-sm);
    border-radius: var(--radius-md);
    color: var(--color-text-primary);
    font-weight: 600;
}

.nav-button:hover {
    border-color: var(--color-primary);
    color: var(--color-primary);
    text-decoration: none;
}

.nav-button.next {
    background-color: var(--color-primary);
    color: white;
    border-color: var(--color-primary);
}

.nav-button.next:hover {
    background-color: var(--color-primary-hover);
}


/* Desktop Enhancements */
@media (min-width: 768px) {
    :root {
        --spacing-md: 2rem;
    }

    h1 {
        font-size: 2.5rem;
    }

    .menu-toggle {
        display: none;
    }

    nav {
        display: block;
        position: static;
        width: auto;
        background: transparent;
        padding: 0;
        border: none;
    }

    nav ul {
        flex-direction: row;
        gap: var(--spacing-md);
    }

    nav a {
        padding: 0;
    }

    nav a:hover {
        padding-left: 0;
    }

    .nav-button {
        flex: 0 0 auto;
        min-width: 150px;
    }

    .command {
        flex-wrap: nowrap;
    }

    /* Desktop Dropdown */
    .dropdown-content {
        display: none;
        position: absolute;
        top: 100%;
        left: 0;
        min-width: 200px;
        background-color: var(--color-bg-header);
        box-shadow: var(--shadow-lg);
        padding: var(--spacing-sm);
        margin-top: 0;
    }

    .dropdown:hover .dropdown-content {
        display: block;
    }

    .articles-grid {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }

    .donation-links {
        flex-wrap: nowrap;
    }

    .about-grid {
        grid-template-columns: 1.4fr minmax(280px, 0.8fr);
        align-items: start;
    }

    .evidence-grid {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }
}

/* Blog Specific Theme (ADDED) */
body.blog-theme {
    --color-bg-body: #ffffff;
    --color-bg-header: #0f172a;
    /* Slate 100 */
    --color-text-header-nav: #ffffff;
    /* Dark text for white header */
}

/* Fix for logo in blog theme if it relies on text color */
body.blog-theme .logo {
    color: var(--color-text-primary);
}

/* Fix for menu toggle in blog theme */
body.blog-theme .menu-toggle {
    color: var(--color-text-header-nav);
}

/* Ensure blog links in nav are visible on light header */
body.blog-theme .site-header {
    /* Color override already handled by var but forcing if needed */
    color: var(--color-text-header-nav);
}

body.blog-theme nav a {
    color: var(--color-text-header-nav);
}

body.blog-theme .menu-toggle {
    color: var(--color-text-header-nav);
}

body.blog-theme .logo {
    color: var(--color-text-header-nav);
}

/* Mobile dropdown background fix for blog theme */
body.blog-theme .dropdown-content {
    background-color: rgba(0, 0, 0, 0.05);
    /* Slight dark tint for white background */
}

/* Desktop dropdown background fix for blog theme */
@media (min-width: 768px) {
    body.blog-theme .dropdown-content {
        background-color: #ffffff;
        /* White card bg for dropdown */
        border: 1px solid var(--color-border);
    }
}

/* Footer fix for blog theme components */
body.blog-theme footer {
    background-color: #f1f5f9;
    color: var(--color-text-secondary);
}