/* Typography - Using a serif font that Matthew Butterick would approve of */
@import url('https://fonts.googleapis.com/css2?family=Crimson+Text:ital,wght@0,400;0,600;1,400&display=swap');

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

body {
    font-family: 'Crimson Text', Georgia, serif;
    font-size: 22px;
    line-height: 1.4;
    color: #000;
    background-color: #fff;
    max-width: 850px;
    margin: 0 auto;
    padding: 40px 40px 0 40px;
    font-kerning: normal;
    text-rendering: optimizeLegibility;
    font-feature-settings: "kern" 1, "liga" 1;
    position: relative;
}


/* Header */
header {
    text-align: center;
    margin-bottom: 10px;
    padding-bottom: 20px;
    border-bottom: 2px solid #000;
}

header h1 {
    font-size: 2.5em;
    font-weight: 600;
    margin-bottom: 10px;
}

.subtitle {
    font-size: 1.2em;
    font-style: italic;
    color: #333;
}

/* Intro and closing sections */
.intro-section {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 40px;
}

.closing-section {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-top: 40px;
}

.closing-item {
    display: flex;
}

.closing-item.distinctive {
    justify-content: flex-start;
}

.closing-item.subtle {
    justify-content: flex-end;
}

.intro-button {
    display: inline-block;
    padding: 12px 24px;
    background-color: #fafafa;
    border: 1px solid #f0f0f0;
    border-radius: 6px;
    color: #000;
    text-decoration: none;
    font-weight: 600;
    transition: all 0.2s ease;
}

.intro-button:hover {
    background-color: #f0f0f0;
    border-color: #e8e8e8;
    transform: translateY(-1px);
}

/* Distinctive styling for Alkusanat and Loppusanat */
.intro-button.distinctive {
    background-color: #f5f5f5;
    border: 2px solid #e0e0e0;
    font-size: 1.1em;
    padding: 16px 32px;
    font-weight: 700;
}

.intro-button.distinctive:hover {
    background-color: #ebebeb;
    border-color: #d0d0d0;
    transform: translateY(-2px);
}

/* Subtle styling for Lähteet */
.intro-button.subtle {
    background-color: #fcfcfc;
    border: 1px solid #f8f8f8;
    color: #666;
    font-weight: 500;
    font-size: 0.95em;
}

.intro-button.subtle:hover {
    background-color: #f8f8f8;
    border-color: #f0f0f0;
    color: #333;
    transform: translateY(-1px);
}

/* Special styling for Alkusanat - larger font */
.intro-section a.intro-button.subtle {
    font-size: 1.1em !important;
    padding: 9px 18px !important;
    font-weight: 500 !important;
    color: #000 !important;
}

/* Navigation and Table of Contents */
.table-of-contents {
    margin-bottom: 40px;
    position: relative;
}

.table-of-contents h2 {
    font-size: 1.5em;
    margin-bottom: 20px;
    margin-top: 30px;
}

/* Two-Column Grid Layout */
.chapter-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
    position: relative;
}

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

.chapter-item,
.appendix-item {
    position: relative;
    display: block;
}

.chapter-title {
    display: block;
    padding: 12px 16px;
    background-color: #fafafa;
    border: 1px solid #f0f0f0;
    border-radius: 6px;
    cursor: pointer;
    transition: all 0.2s ease;
    font-weight: 400;
    color: #000;
    text-decoration: none;
    width: 100%;
    box-sizing: border-box;
}

.chapter-title:hover {
    background-color: #f0f0f0;
    border-color: #e8e8e8;
    transform: translateX(2px);
}

/* Section Popup - Positioned within text area boundaries */
.section-popup {
    position: absolute;
    background-color: #fff;
    border: 2px solid #333;
    border-radius: 8px;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
    padding: 10px;
    min-width: 280px;
    max-width: 280px;
    z-index: 1000;
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s ease;
}

/* Invisible bridge to prevent popup from disappearing when moving cursor */
.section-popup::before {
    content: '';
    position: absolute;
    background: transparent;
    z-index: -1;
}

/* Bridge for right popups */
.popup-right::before {
    left: -20px;
    top: -10px;
    width: 20px;
    height: calc(100% + 20px);
}

/* Bridge for left popups */
.popup-left::before {
    right: -20px;
    top: -10px;
    width: 20px;
    height: calc(100% + 20px);
}

/* Bridge for center popups */
.popup-center::before {
    left: 50%;
    top: -10px;
    width: 20px;
    height: 10px;
    transform: translateX(-50%);
}

/* Right popup for left column items */
.popup-right {
    left: 100%;
    top: 100%;
    margin-left: 20px;
    margin-top: 10px;
    transform: translateX(-10px);
}

/* Left popup for right column items */
.popup-left {
    right: 100%;
    top: 100%;
    margin-right: 20px;
    margin-top: 10px;
    transform: translateX(10px);
}

/* Center popup for appendices */
.popup-center {
    left: 50%;
    top: 100%;
    margin-top: 10px;
    transform: translateX(-50%) translateY(-10px);
}

/* Show popups on hover */
.chapter-item:hover .section-popup,
.appendix-item:hover .section-popup {
    opacity: 1;
    visibility: visible;
}

.left-item:hover .popup-right {
    transform: translateX(0);
}

.right-item:hover .popup-left {
    transform: translateX(0);
}

.appendix-item:hover .popup-center {
    transform: translateX(-50%) translateY(0);
}

/* Dynamic popup positioning classes */
.popup-upward {
    top: auto !important;
    bottom: 0% !important;
    margin-top: 0 !important;
    margin-bottom: 10px !important;
}

.popup-downward {
    top: 0% !important;
    bottom: auto !important;
    margin-top: 10px !important;
    margin-bottom: 0 !important;
}

.popup-upward.popup-center {
    bottom: 0 !important;
    top: auto !important;
    margin-bottom: 10px !important;
    margin-top: 0 !important;
    transform: translateX(-50%) translateY(0) !important;
}

.popup-downward.popup-center {
    top: 100% !important;
    bottom: auto !important;
    margin-top: 10px !important;
    margin-bottom: 0 !important;
    transform: translateX(-50%) translateY(0) !important;
}

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

.section-popup li {
    margin-bottom: 8px;
}

.section-popup li:last-child {
    margin-bottom: 0;
}

.section-popup a {
    display: block;
    padding: 8px 12px;
    color: #0066cc;
    text-decoration: none;
    border-radius: 4px;
    transition: background-color 0.2s ease;
    font-size: 0.95em;
}

.section-popup a:hover {
    background-color: #f0f8ff;
    text-decoration: underline;
}

/* Appendix Section */
.appendix-section {
    grid-column: 1 / -1;
    margin-top: 20px;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
}

.appendix-section .chapter-item {
    position: relative;
    display: block;
}

/* Responsive adjustments */
@media (max-width: 900px) {
    .chapter-grid {
        grid-template-columns: 1fr;
        gap: 8px;
    }

    /* Hide section pop-ups completely on mobile */
    .section-popup {
        display: none !important;
    }

    /* Remove hover effects on mobile */
    .chapter-item:hover .section-popup,
    .appendix-item:hover .section-popup {
        display: none !important;
    }

    .popup-right,
    .popup-left,
    .popup-center {
        display: none !important;
    }
}

@media (max-width: 600px) {
    body {
        padding: 15px;
        font-size: 16px;
    }
    
    header h1 {
        font-size: 2em;
    }
    
    .section-popup {
        min-width: 250px;
        max-width: 300px;
    }
}

/* Links with hover effects for other pages */
a:not(.section-popup a):not(.chapter-title) {
    color: #000;
    text-decoration: none;
    padding: 8px 12px;
    display: inline-block;
    border-radius: 4px;
    transition: background-color 0.2s ease;
}

a:not(.section-popup a):not(.chapter-title):hover {
    background-color: #e0e0e0;
}

/* Page structure for individual pages */
.page-header {
    margin-bottom: 30px;
    padding-bottom: 15px;
    border-bottom: 1px solid #ccc;
}

.page-title {
    font-size: 2em;
    margin-bottom: 10px;
}

.page-content {
    margin-bottom: 40px;
}

/* Section styling */
.section {
    margin-bottom: 40px;
}

.section h2 {
    font-size: 1.4em;
    margin-bottom: 15px;
    font-weight: 600;
}

.section h3 {
    font-size: 1.2em;
    margin-bottom: 12px;
    font-weight: 600;
}

/* Special content blocks */
.ohjeet {
    background-color: #f8f8f8;
    border-left: 4px solid #333;
    padding: 15px;
    margin: 20px 0;
}

.ohjeet::before {
    content: "Ohjeet";
    font-weight: 600;
    display: block;
    margin-bottom: 10px;
}

.aktiviteetti {
    background-color: #f0f8ff;
    border: 1px solid #b0d4f1;
    border-radius: 6px;
    padding: 15px;
    margin: 20px 0;
}

.keskustelu {
    background-color: #fffef0;
    border: 1px solid #e6e0b8;
    border-radius: 6px;
    padding: 15px;
    margin: 20px 0;
}

.dialog-line {
    margin-bottom: 8px;
}

.vanhempi {
    font-weight: 600;
}

.lapsi {
    font-style: italic;
}

/* Interactive elements */
.statement {
    background-color: #f9f9f9;
    border: 1px solid #ddd;
    border-radius: 4px;
    padding: 15px;
    margin: 10px 0;
    cursor: pointer;
    transition: background-color 0.2s ease;
}

.statement:hover {
    background-color: #f0f0f0;
}

.statement.revealed {
    background-color: #e8f5e8;
    border-color: #4caf50;
}

.statement.revealed.false {
    background-color: #ffeaea;
    border-color: #f44336;
}

.answer {
    margin-top: 10px;
    padding-top: 10px;
    border-top: 1px solid #ccc;
    font-weight: 600;
    display: none;
}

.answer.true {
    color: #2e7d32;
}

.answer.false {
    color: #c62828;
}

/* Footer navigation */
.page-footer {
    margin-top: 60px;
    padding-top: 20px;
    border-top: 1px solid #ccc;
    color: #666;
    font-size: 0.9em;
}

.page-footer a {
    color: #666;
    padding: 4px 8px;
}

.page-footer a:hover {
    color: #000;
    background-color: #f0f0f0;
}

.chapter-nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 20px;
}

.chapter-sections {
    text-align: left;
}

.chapter-sections h4 {
    margin-bottom: 10px;
    font-size: 1em;
}

.chapter-sections ul {
    list-style: none;
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 10px;
}

/* Footer */
footer {
    text-align: center;
    margin-top: 60px;
    margin-bottom: 0;
    color: #666;
    font-size: 0.9em;
}

/* Section Navigation */
.section-navigation {
    display: grid;
    grid-template-columns: 1fr 1fr 1fr;
    margin-bottom: 0;
    border-top: 1px solid #e0e0e0;
    min-height: 60px;
}

.nav-prev, .nav-chapter, .nav-next {
    display: flex;
    align-items: center;
    justify-content: center;
}

.nav-prev {
    justify-content: flex-start;
}

.nav-next {
    justify-content: flex-end;
}

.section-navigation a {
    color: #666;
    text-decoration: none;
    transition: color 0.2s ease, background-color 0.2s ease;
    display: flex;
    align-items: center;
    justify-content: inherit;
    font-size: 0.9em;
    width: 100%;
    height: 100%;
    padding: 15px 20px;
    min-height: 60px;
    box-sizing: border-box;
}

.section-navigation a:hover {
    color: #000;
    background-color: #f8f8f8;
}

@media (max-width: 600px) {
    .section-navigation {
        grid-template-columns: 1fr;
        min-height: auto;
    }
    
    .nav-prev, .nav-next, .nav-chapter {
        justify-content: center;
    }
    
    .section-navigation a {
        justify-content: center;
        min-height: 50px;
        padding: 15px;
    }
}

/* Chapter page styling */
.chapter-content {
    max-width: 850px;
    margin: 0 auto;
    padding: 40px;
}

.chapter-header {
    text-align: center;
    margin-bottom: 40px;
    margin-top: 0px;
    padding-bottom: 20px;
    border-bottom: 2px solid #000;
}

.chapter-header h1 {
    font-size: 1.8em;
    font-weight: 600;
    margin: 0;
}

.chapter-sections h2 {
    font-size: 1.1em;
    margin-bottom: 8px;
    margin-top: 15px;
    font-weight: 400;
    background: none;
    border: none;
    padding: 0;
}

.chapter-sections h2 a {
    color: #000;
    text-decoration: none;
    display: inline-block;
    padding: 6px 12px;
    background-color: #fafafa;
    border: 1px solid #f0f0f0;
    border-radius: 6px;
    transition: all 0.2s ease;
}

.chapter-sections h2 a:hover {
    background-color: #f0f0f0;
    border-color: #e8e8e8;
    transform: translateX(2px);
}

.chapter-sections h2 a:hover {
    color: #000;
}

.chapter-sections p {
    margin-bottom: 1rem;
}

/* Section page styling */
.section-content {
    max-width: 850px;
    margin: 0 auto;
    padding: 10px;
}

.section-header {
    text-align: center;
    margin-bottom: 20px;
    margin-top: 0px;
    padding-bottom: 2px;
    border-bottom: 2px solid #000;
}

.section-header h1 {
    font-size: 2em;
    font-weight: 600;
    margin-bottom: 10px;
}

.chapter-info {
    font-style: italic;
    color: #666;
    margin: 0;
    margin-bottom: 5px;
}

.section-body {
    line-height: 1.4;
    margin-top: 0px;
}

.section-body h2 {
    font-size: 1.4em;
    margin-top: 2rem;
    margin-bottom: 1rem;
    font-weight: 600;
}

.section-body h3 {
    font-size: 1.2em;
    margin-top: 1.5rem;
    margin-bottom: 0.75rem;
    font-weight: 600;
}

.section-body p {
    margin-bottom: 1rem;
}

.section-body ul, .section-body ol {
    margin-bottom: 1rem;
    padding-left: 2rem;
}

.section-body li {
    margin-bottom: 0.5rem;
}

/* Ensure proper header styling for all layouts */
header h1 a {
    color: #000;
    text-decoration: none;
}

header h1 a:hover {
    color: #000;
}

/* Educational content styling */
.tyokalut {
    background-color: #e3f2fd;
    border: 2px solid #1976d2;
    border-radius: 8px;
    padding: 1rem;
    margin: 1rem 0;
    white-space: pre-wrap; /* Preserve line breaks but collapse multiple spaces */
}

.tyokalut strong {
    font-weight: bold;
}

.tyokalut p {
    margin: 0.5rem 0;
}

/* Code block styling for better readability with left alignment */
pre {
    background-color: #f8f8f8;
    border: 1px solid #e0e0e0;
    border-radius: 6px;
    padding: 16px 20px;
    margin: 20px 0;
    overflow-x: auto;
    font-family: 'Monaco', 'Menlo', 'Ubuntu Mono', monospace;
    font-size: 0.9em;
    line-height: 1.6;
    min-height: 50px;
    tab-size: 8;
}

/* Python code blocks with darker background */
.python-code pre {
    background-color: #f0f0f0;
    border: 1px solid #d0d0d0;
}

pre code {
    background: none;
    border: none;
    padding: 0;
    margin: 0;
    font-size: inherit;
    line-height: inherit;
    white-space: pre;
    display: block;
    text-align: left;
}

/* Inline code styling */
code {
    background-color: #f0f0f0;
    border: 1px solid #d0d0d0;
    border-radius: 3px;
    padding: 2px 6px;
    font-family: 'Monaco', 'Menlo', 'Ubuntu Mono', monospace;
    font-size: 0.85em;
    color: #333;
}

/* Ensure code blocks in lists and other contexts are properly spaced */
.section-body pre {
    margin: 16px 0;
}

.section-body li pre {
    margin: 12px 0;
}

.blue-text {
    color: #1976d2;
    font-weight: bold;
}

.red-text {
    color: #d32f2f;
    font-weight: bold;
}

.game-container {
    background-color: #f5f5f5;
    border-radius: 8px;
    padding: 2rem;
    margin: 2rem 0;
    text-align: center;
}

.game-button {
    background-color: #4caf50;
    color: white;
    padding: 12px 24px;
    border: none;
    border-radius: 4px;
    cursor: pointer;
    font-size: 16px;
    margin: 10px;
}

.game-button:hover {
    background-color: #45a049;
}

/* Statement hover functionality for Väitteitä page */
.statement-item {
    position: relative;
    display: block;
    padding: 12px 16px;
    margin: 8px 0;
    background-color: #f9f9f9;
    border: 1px solid #ddd;
    border-radius: 6px;
    cursor: pointer;
    transition: all 0.2s ease;
    line-height: 1.5;
}

.statement-item:hover {
    background-color: #f0f0f0;
    border-color: #bbb;
    transform: translateX(2px);
}

.statement-tooltip {
    position: absolute;
    top: 50%;
    right: -120px;
    transform: translateY(-50%);
    background-color: #fff;
    border: 2px solid #333;
    border-radius: 6px;
    padding: 8px 12px;
    font-weight: 600;
    font-size: 0.9em;
    white-space: nowrap;
    z-index: 1000;
    display: none;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
}

.statement-tooltip.true {
    color: #2e7d32;
    border-color: #4caf50;
    background-color: #e8f5e8;
}

.statement-tooltip.false {
    color: #c62828;
    border-color: #f44336;
    background-color: #ffeaea;
}

/* Responsive adjustments for statement tooltips */
@media (max-width: 900px) {
    /* Hide original tooltips on mobile - mobile-compatibility.js will handle click behavior */
    .statement-tooltip {
        display: none !important;
    }

    .statement-item:hover .statement-tooltip {
        display: none !important;
    }

    /* Styles for mobile click-revealed answers (handled by mobile-compatibility.js) */
    .mobile-answer {
        margin: 12px 0;
        padding: 12px 16px;
        border-radius: 6px;
        font-weight: 600;
        font-size: 0.85em;
        line-height: 1.4;
        white-space: pre-wrap;
        word-wrap: break-word;
    }
}

@media (max-width: 600px) {
    .statement-item {
        padding: 10px 12px;
        margin: 6px 0;
    }

    .mobile-answer {
        padding: 8px 12px;
        font-size: 0.8em;
    }
}