/* =============================================================================
   Data Analysis in Natural Sciences - Custom Styles
   Author: Jimmy Moses
   Repository: https://github.com/jm0535/dains
   ============================================================================= */

/* -----------------------------------------------------------------------------
   CSS Variables (Custom Properties)
   ----------------------------------------------------------------------------- */
:root {
    /* Primary colors */
    --color-primary: #2e7d32;
    --color-primary-light: #4caf50;
    --color-primary-dark: #1b5e20;

    /* Secondary colors */
    --color-secondary: #1565c0;
    --color-secondary-light: #42a5f5;

    /* Accent colors */
    --color-accent: #ff7043;

    /* Neutral colors */
    --color-text: #333333;
    --color-text-light: #666666;
    --color-text-muted: #888888;
    --color-background: #ffffff;
    --color-background-alt: #f8f9fa;
    --color-border: #e1e4e8;
    --color-border-light: #eaecef;

    /* Typography */
    --font-body: "Palatino Linotype", "Book Antiqua", Palatino, Georgia, serif;
    --font-heading: "Helvetica Neue", Helvetica, Arial, sans-serif;
    --font-code:
        "Source Code Pro", "Fira Code", Consolas, Monaco, "Andale Mono",
        monospace;

    /* Spacing */
    --spacing-xs: 0.25rem;
    --spacing-sm: 0.5rem;
    --spacing-md: 1rem;
    --spacing-lg: 1.5rem;
    --spacing-xl: 2rem;
    --spacing-xxl: 3rem;

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

    /* Shadows */
    --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.1);
    --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 20px rgba(0, 0, 0, 0.15);
}

/* -----------------------------------------------------------------------------
   Base Styles
   ----------------------------------------------------------------------------- */
body {
    font-family: var(--font-body);
    line-height: 1.7;
    color: var(--color-text);
    background-color: var(--color-background);
}

/* Improve max-width for content */
.page-columns .content {
    max-width: 900px;
}

/* -----------------------------------------------------------------------------
   Typography
   ----------------------------------------------------------------------------- */
h1,
h2,
h3,
h4,
h5,
h6 {
    font-family: var(--font-heading);
    font-weight: 600;
    color: var(--color-primary-dark);
    margin-top: var(--spacing-xl);
    margin-bottom: var(--spacing-md);
    line-height: 1.3;
}

h1 {
    font-size: 2.5em;
    border-bottom: 3px solid var(--color-primary);
    padding-bottom: var(--spacing-sm);
}

h2 {
    font-size: 1.9em;
    border-bottom: 2px solid var(--color-border-light);
    padding-bottom: var(--spacing-xs);
}

h3 {
    font-size: 1.5em;
    color: var(--color-secondary);
}

h4 {
    font-size: 1.25em;
}

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

/* -----------------------------------------------------------------------------
   Cover Image (Landing Page)
   ----------------------------------------------------------------------------- */
/* Cover image is now displayed directly in index.qmd */

/* -----------------------------------------------------------------------------
   Content Blocks
   ----------------------------------------------------------------------------- */
.content-block {
    padding: var(--spacing-md) 0;
}

/* Grid system enhancements */
.grid {
    gap: var(--spacing-lg);
    margin: var(--spacing-lg) 0;
}

.g-col-12.g-col-md-6,
.g-col-12.g-col-md-4 {
    background: var(--color-background-alt);
    padding: var(--spacing-lg);
    border-radius: var(--radius-md);
    border-left: 4px solid var(--color-primary);
    transition:
        transform 0.2s ease,
        box-shadow 0.2s ease;
}

.g-col-12.g-col-md-6:hover,
.g-col-12.g-col-md-4:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.g-col-12.g-col-md-6 h3,
.g-col-12.g-col-md-4 h3 {
    color: var(--color-primary-dark);
    font-size: 1.2em;
    margin-top: 0;
    margin-bottom: var(--spacing-sm);
}

/* -----------------------------------------------------------------------------
   Buttons
   ----------------------------------------------------------------------------- */
.btn {
    display: inline-block;
    padding: var(--spacing-sm) var(--spacing-lg);
    border-radius: var(--radius-md);
    font-family: var(--font-heading);
    font-weight: 600;
    text-decoration: none;
    transition: all 0.2s ease;
    cursor: pointer;
    border: none;
}

.btn-primary {
    background-color: var(--color-primary);
    color: white !important;
}

.btn-primary:hover {
    background-color: var(--color-primary-dark);
    text-decoration: none;
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.btn-lg {
    padding: var(--spacing-md) var(--spacing-xl);
    font-size: 1.1em;
}

.btn-secondary {
    background-color: var(--color-secondary);
    color: white !important;
}

.btn-secondary:hover {
    background-color: #0d47a1;
}

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

.text-muted {
    color: var(--color-text-muted);
}

/* -----------------------------------------------------------------------------
   Links
   ----------------------------------------------------------------------------- */
a {
    color: var(--color-secondary);
    text-decoration: none;
    transition: color 0.2s ease;
}

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

/* -----------------------------------------------------------------------------
   Cover Image
   ----------------------------------------------------------------------------- */
.quarto-cover-image {
    box-shadow: var(--shadow-lg);
    border-radius: var(--radius-md);
    margin-bottom: var(--spacing-xl);
    transition: transform 0.3s ease;
}

.quarto-cover-image:hover {
    transform: scale(1.02);
}

/* -----------------------------------------------------------------------------
   Code Blocks
   ----------------------------------------------------------------------------- */
pre,
code {
    font-family: var(--font-code);
    font-size: 0.9em;
}

code {
    background-color: var(--color-background-alt);
    padding: 0.15em 0.4em;
    border-radius: var(--radius-sm);
    color: var(--color-primary-dark);
}

pre {
    background-color: #f6f8fa;
    padding: var(--spacing-md);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    overflow-x: auto;
    line-height: 1.5;
}

pre code {
    background: none;
    padding: 0;
    color: inherit;
}

/* Code block header */
.code-tools-button {
    color: var(--color-text-muted);
}

/* -----------------------------------------------------------------------------
   Tables
   ----------------------------------------------------------------------------- */
table {
    width: 100%;
    margin: var(--spacing-lg) 0;
    border-collapse: collapse;
    border-spacing: 0;
    font-size: 0.95em;
}

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

th {
    background-color: var(--color-primary);
    color: white;
    font-weight: 600;
    font-family: var(--font-heading);
}

tr:nth-child(even) {
    background-color: var(--color-background-alt);
}

tr:hover {
    background-color: rgba(46, 125, 50, 0.1);
}

/* -----------------------------------------------------------------------------
   Callout Boxes
   ----------------------------------------------------------------------------- */
.callout {
    border-radius: var(--radius-md);
    margin: var(--spacing-lg) 0;
    box-shadow: var(--shadow-sm);
}

.callout-note {
    border-left-color: var(--color-secondary);
}

.callout-tip {
    border-left-color: var(--color-primary);
}

.callout-important {
    border-left-color: var(--color-accent);
}

.callout-warning {
    border-left-color: #f9a825;
}

.callout-caution {
    border-left-color: #e53935;
}

/* Callout titles */
.callout-title {
    font-family: var(--font-heading);
    font-weight: 600;
}

/* -----------------------------------------------------------------------------
   Figures and Captions
   ----------------------------------------------------------------------------- */
figure {
    margin: var(--spacing-xl) 0;
    text-align: center;
}

figure img {
    max-width: 100%;
    height: auto;
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-md);
}

figcaption {
    font-style: italic;
    font-size: 0.9em;
    color: var(--color-text-light);
    margin-top: var(--spacing-sm);
}

/* -----------------------------------------------------------------------------
   Blockquotes
   ----------------------------------------------------------------------------- */
blockquote {
    margin: var(--spacing-lg) 0;
    padding: var(--spacing-md) var(--spacing-lg);
    background-color: var(--color-background-alt);
    border-left: 4px solid var(--color-primary);
    border-radius: 0 var(--radius-md) var(--radius-md) 0;
    font-style: italic;
    color: var(--color-text-light);
}

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

/* -----------------------------------------------------------------------------
   Navigation / Sidebar
   ----------------------------------------------------------------------------- */
.sidebar-item-container .active {
    font-weight: 700;
    color: var(--color-primary) !important;
}

.sidebar nav[role="doc-toc"] ul {
    padding-left: var(--spacing-md);
}

/* Navbar styling */
.navbar {
    box-shadow: var(--shadow-md);
    background-color: var(--color-primary-dark) !important;
}

.navbar-brand {
    font-weight: 700;
}

/* -----------------------------------------------------------------------------
   Footer
   ----------------------------------------------------------------------------- */
.nav-footer {
    background-color: var(--color-background-alt);
    border-top: 2px solid var(--color-primary);
}

/* Draft banner styling */
div[style*="text-align: center"][style*="font-weight: bold"] {
    background: linear-gradient(90deg, #fff3cd, #ffeeba, #fff3cd);
    color: #856404;
    border-top: 2px solid #ffc107;
    font-family: var(--font-heading);
}

/* -----------------------------------------------------------------------------
   Lists
   ----------------------------------------------------------------------------- */
ul,
ol {
    margin-bottom: var(--spacing-md);
    padding-left: var(--spacing-xl);
}

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

/* Checklist style for features */
ul li::marker {
    color: var(--color-primary);
}

/* -----------------------------------------------------------------------------
   Horizontal Rules
   ----------------------------------------------------------------------------- */
hr {
    border: none;
    border-top: 2px solid var(--color-border-light);
    margin: var(--spacing-xl) 0;
}

/* -----------------------------------------------------------------------------
   Chapter Navigation
   ----------------------------------------------------------------------------- */
.page-navigation {
    margin-top: var(--spacing-xxl);
    padding-top: var(--spacing-lg);
    border-top: 2px solid var(--color-border-light);
}

.page-navigation .nav-page {
    padding: var(--spacing-md);
    background-color: var(--color-background-alt);
    border-radius: var(--radius-md);
    transition: background-color 0.2s ease;
}

.page-navigation .nav-page:hover {
    background-color: rgba(46, 125, 50, 0.1);
}

/* -----------------------------------------------------------------------------
   Print Styles
   ----------------------------------------------------------------------------- */
@media print {
    body {
        font-size: 11pt;
        color: black;
    }

    .hero-banner {
        background: var(--color-primary) !important;
        -webkit-print-color-adjust: exact;
        print-color-adjust: exact;
    }

    pre,
    code {
        font-size: 9pt;
    }

    h1,
    h2,
    h3,
    h4,
    h5,
    h6 {
        page-break-after: avoid;
        color: black;
    }

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

    .navbar,
    .sidebar,
    .page-navigation {
        display: none;
    }

    a {
        color: black;
        text-decoration: underline;
    }

    a[href^="http"]:after {
        content: " (" attr(href) ")";
        font-size: 0.8em;
    }
}

/* -----------------------------------------------------------------------------
   Mobile Responsive Styles
   ----------------------------------------------------------------------------- */
@media (max-width: 991px) {
    .hero-banner {
        padding: var(--spacing-xl) var(--spacing-md);
        margin: calc(-1 * var(--spacing-md)) calc(-1 * var(--spacing-md)) var(--spacing-lg);
    }

    .hero-title {
        font-size: 2em !important;
    }

    .hero-subtitle {
        font-size: 1.2em !important;
    }

    /* Tablet optimizations */
    body {
        font-size: 17px;
        /* Slightly larger text for tablets */
    }

    .page-columns .content {
        padding-left: var(--spacing-md);
        padding-right: var(--spacing-md);
    }
}

@media (max-width: 768px) {
    body {
        font-size: 16px;
        line-height: 1.6;
        /* Tighter line height for mobile */
    }

    h1 {
        font-size: 1.75em;
        margin-top: var(--spacing-lg);
    }

    h2 {
        font-size: 1.4em;
        margin-top: var(--spacing-lg);
    }

    h3 {
        font-size: 1.2em;
    }

    .hero-banner {
        padding: var(--spacing-lg) var(--spacing-md);
    }

    .hero-title {
        font-size: 1.6em !important;
    }

    .hero-subtitle {
        font-size: 1.1em !important;
    }

    pre {
        padding: var(--spacing-sm);
        font-size: 0.8em;
        /* Smaller code font on mobile */
        border-radius: var(--radius-sm);
    }

    /* Improved table responsiveness */
    .cell-output-display {
        overflow-x: auto;
    }

    table {
        display: block;
        overflow-x: auto;
        white-space: nowrap;
        font-size: 0.85em;
        /* Smaller table text */
        -webkit-overflow-scrolling: touch;
        /* Smooth scrolling on iOS */
    }

    .g-col-12.g-col-md-6,
    .g-col-12.g-col-md-4 {
        padding: var(--spacing-md);
        margin-bottom: var(--spacing-md);
        /* Add spacing between stacked columns */
    }

    .btn-lg {
        padding: var(--spacing-sm) var(--spacing-lg);
        font-size: 1em;
        width: 100%;
        /* Full width buttons on mobile */
        text-align: center;
        margin-bottom: var(--spacing-sm);
    }

    /* Increase touch targets */
    a,
    button,
    .btn {
        min-height: 44px;
        /* Minimum touch target size */
        min-width: 44px;
        display: inline-flex;
        align-items: center;
    }

    /* Adjust navbar padding */
    .navbar {
        padding: var(--spacing-sm);
    }
}

/* -----------------------------------------------------------------------------
   Dark Mode Support (if enabled)
   ----------------------------------------------------------------------------- */
@media (prefers-color-scheme: dark) {
    /* Uncomment to enable dark mode support
  :root {
    --color-text: #e0e0e0;
    --color-background: #1a1a1a;
    --color-background-alt: #2d2d2d;
    --color-border: #404040;
    --color-border-light: #333333;
  }
  */
}

/* -----------------------------------------------------------------------------
   Accessibility Improvements
   ----------------------------------------------------------------------------- */
/* Focus states for keyboard navigation */
a:focus,
button:focus,
.btn:focus {
    outline: 3px solid var(--color-primary-light);
    outline-offset: 2px;
}

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

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

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

/* -----------------------------------------------------------------------------
   Emoji styling in headings
   ----------------------------------------------------------------------------- */
h3 {
    line-height: 1.4;
}

/* Ensure emoji don't affect line height */
h3>span[role="img"],
h3>img.emoji {
    vertical-align: middle;
}