/* AI Interactive Learning Experience - Main Stylesheet */

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

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    line-height: 1.6;
    color: var(--text-color);
    background: var(--bg-color);
    transition: all 0.3s ease;
}

.header-title {
    position: relative;
    text-align: center;
    padding: 20px 15px 10px 15px;
    background: var(--bg-color, #ffffff);
    border-bottom: 2px solid var(--accent-color, #007acc);
}

.header-title h1 {
    font-size: 1.8em;
    color: var(--accent-color, #007acc);
    margin: 0;
    font-weight: 700;
}

.header-collapse-toggle {
    position: absolute;
    right: 15px;
    top: 50%;
    transform: translateY(-50%);
    background: var(--bg-color, #ffffff);
    border: 1px solid var(--accent-color, #007acc);
    color: var(--accent-color, #007acc);
    padding: 8px 12px;
    border-radius: 4px;
    cursor: pointer;
    font-size: 12px;
    font-weight: 600;
    transition: all 0.3s ease;
    box-shadow: 0 2px 4px rgba(0,0,0,0.1);
}

.header-collapse-toggle:hover {
    background: var(--accent-color, #007acc);
    color: var(--bg-color, #ffffff);
    transform: translateY(-50%) scale(1.05);
}

.collapse-icon {
    transition: transform 0.3s ease;
    display: inline-block;
}

.header-collapse-toggle.collapsed .collapse-icon {
    transform: rotate(-90deg);
}

.theme-controls {
    position: sticky;
    top: 0;
    z-index: 1000;
    padding: 15px;
    border-bottom: 1px solid var(--border-color);
    background: var(--card-bg);
    display: flex;
    gap: 20px;
    flex-wrap: wrap;
    align-items: flex-start;
    justify-content: center;
    transition: all 0.3s ease;
    overflow: hidden;
}

.theme-controls.collapsed {
    max-height: 0;
    padding-top: 0;
    padding-bottom: 0;
    border-bottom: none;
}

.control-section {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 8px;
    min-width: 160px;
}

.section-label {
    font-size: 0.85em;
    font-weight: 600;
    color: var(--secondary-color);
    margin-bottom: 4px;
    text-align: center;
}

.section-controls {
    display: flex;
    flex-direction: column;
    gap: 6px;
    width: 100%;
    align-items: center;
}

.control-group {
    display: flex;
    align-items: center;
    gap: 8px;
}

.control-group label {
    font-size: 0.9em;
    font-weight: 500;
}

.compact-slider {
    width: 120px;
    height: 4px;
    margin: 2px 0;
}

.compact-value {
    font-size: 0.8em;
    color: var(--secondary-color);
    min-width: 35px;
    text-align: center;
}

.section-controls select {
    width: 100%;
    font-size: 0.85em;
    padding: 4px 8px;
}

select, input[type="range"] {
    padding: 5px 8px;
    border: 1px solid var(--border-color);
    border-radius: 4px;
    font-size: 0.9em;
    background: var(--bg-color);
    color: var(--text-color);
}

.book-picker {
    border-right: 1px solid var(--border-color);
    padding-right: 15px;
    margin-right: 15px;
}

.content-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 20px 20px 100px 20px;
}

.main-title {
    text-align: center;
    margin-bottom: 15px;
    padding: 20px 0 5px 0;
}

.main-title h1 {
    font-size: var(--heading-1, 2.5em);
    color: var(--accent-color);
    margin: 0;
    font-weight: 700;
}

.slide-container {
    min-height: 70vh;
    display: none;
    animation: fadeIn 0.5s ease;
}

.slide-container.active {
    display: block;
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(20px); }
    to { opacity: 1; transform: translateY(0); }
}

.slide-nav {
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    background: var(--card-bg);
    border-top: 2px solid var(--border-color);
    box-shadow: 0 -4px 12px rgba(0,0,0,0.1);
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 15px 20px;
    z-index: 1000;
}

.nav-button {
    padding: 12px 24px;
    background: var(--accent-color);
    color: white;
    border: none;
    border-radius: 6px;
    cursor: pointer;
    font-size: 1em;
    font-weight: 500;
    transition: all 0.3s ease;
    box-shadow: 0 2px 8px rgba(0,0,0,0.1);
}

.nav-button:hover:not(:disabled) {
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(0,0,0,0.2);
}

.nav-button:disabled {
    background: var(--border-color);
    color: var(--secondary-color);
    cursor: not-allowed;
    transform: none;
    box-shadow: none;
}

.progress-bar {
    flex: 1;
    margin: 0 20px;
}

.progress-fill {
    height: 100%;
    background: var(--accent-color);
    border-radius: 4px;
    transition: width 0.3s ease;
}

.progress-track {
    height: 8px;
    background: var(--border-color);
    border-radius: 4px;
    overflow: visible; /* Changed to allow tick marks to be visible */
    position: relative; /* Added for absolute positioned tick marks */
}

.bottom-row {
    display: flex;
    align-items: center;
    margin-top: 8px;
    position: relative;
}

.slide-counter {
    font-size: 0.9em;
    color: #666;
    /* Left-justified by default in flex */
}

.copyright {
    font-size: 0.8em;
    color: var(--secondary-color);
    position: absolute;
    left: 50%;
    transform: translateX(-50%);
}


/* Slide Navigation Tick Marks */
.slide-tick {
    transition: all 0.3s ease;
}

.slide-tick:hover {
    transform: translate(-50%, -50%) scale(1.1) !important;
    box-shadow: 0 3px 6px rgba(0,0,0,0.3) !important;
}

.slide-tick.active {
    background: var(--accent-color) !important;
    transform: translate(-50%, -50%) scale(1.2);
    box-shadow: 0 3px 6px rgba(0,0,0,0.3);
}

.copyright {
    font-size: 0.8em;
    color: var(--secondary-color);
}

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

.copyright a:hover {
    text-decoration: underline;
}

.detail-level-controls {
    text-align: center;
    margin: 20px 0;
}

.detail-buttons {
    display: inline-flex;
    border-radius: 25px;
    overflow: hidden;
    border: 1px solid var(--border-color);
    background: var(--card-bg);
}

.detail-btn {
    padding: 8px 16px;
    background: var(--bg-color);
    border: none;
    cursor: pointer;
    font-size: 0.9em;
    color: var(--text-color);
    transition: all 0.3s ease;
}

.detail-btn.active {
    background: var(--accent-color);
    color: white;
}

.detail-btn:hover:not(.active) {
    background: var(--hover-color);
}

.loading {
    text-align: center;
    padding: 50px;
    font-size: 1.2em;
    color: #666;
}

.error {
    text-align: center;
    padding: 50px;
    color: #d32f2f;
    background: #ffebee;
    border-radius: 8px;
    margin: 20px;
}

/* Audio Player Styles */
.audio-player {
    position: relative;
    display: inline-flex;
    align-items: center;
    gap: 8px;
    margin-bottom: 15px;
}

.audio-toggle {
    background: var(--accent-color);
    color: white;
    border: none;
    border-radius: 50%;
    width: 40px;
    height: 40px;
    cursor: pointer;
    font-size: 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.3s ease;
    box-shadow: 0 2px 4px rgba(0,0,0,0.1);
}

.audio-toggle:hover {
    transform: translateY(-1px);
    box-shadow: 0 4px 8px rgba(0,0,0,0.2);
}

.audio-toggle.playing {
    background: var(--secondary-color);
}

.audio-info {
    font-size: 0.85em;
    color: var(--secondary-color);
}

/* Content Block with Audio */
.content-block {
    background: var(--card-bg);
    padding: 25px;
    border-radius: 8px;
    border: 1px solid var(--border-color);
    margin: 20px 0;
    line-height: 1.7;
    position: relative;
}

/* Quiz Styles */
.quiz-container {
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 25px;
    margin: 30px 0;
}

.quiz-title {
    font-size: 1.2em;
    font-weight: 600;
    color: var(--text-color);
    margin-bottom: 15px;
    display: flex;
    align-items: center;
    gap: 10px;
}

.quiz-question {
    font-size: 1.05em;
    color: var(--text-color);
    margin-bottom: 20px;
    line-height: 1.6;
}

.quiz-options {
    display: flex;
    flex-direction: column;
    gap: 12px;
    margin-bottom: 20px;
}

.quiz-option {
    display: flex;
    align-items: flex-start;
    gap: 12px;
    padding: 15px;
    background: var(--card-bg);
    color: var(--text-color);
    border: 1px solid var(--border-color);
    border-radius: 6px;
    cursor: pointer;
    transition: all 0.3s ease;
}

.quiz-option:hover:not(.disabled) {
    background: var(--hover-color);
    border-color: var(--accent-color);
}

.quiz-option.selected {
    background: var(--accent-color);
    color: white;
    border-color: var(--accent-color);
}

.quiz-option.correct {
    background: #4caf50;
    color: white;
    border-color: #4caf50;
}

.quiz-option.incorrect {
    background: #f44336;
    color: white;
    border-color: #f44336;
}

.quiz-option.disabled {
    cursor: not-allowed;
    opacity: 0.7;
}

.quiz-option-input {
    margin-top: 2px;
    cursor: pointer;
}

.quiz-option-text {
    flex: 1;
    line-height: 1.5;
}

.quiz-actions {
    display: flex;
    gap: 15px;
    align-items: center;
}

.quiz-button {
    padding: 10px 20px;
    border: none;
    border-radius: 6px;
    cursor: pointer;
    font-size: 0.95em;
    font-weight: 500;
    transition: all 0.3s ease;
}

.quiz-button.primary {
    background: var(--accent-color);
    color: white;
}

.quiz-button.secondary {
    background: var(--hover-color);
    color: var(--text-color);
    border: 1px solid var(--border-color);
}

.quiz-button:hover:not(:disabled) {
    transform: translateY(-1px);
    box-shadow: 0 2px 8px rgba(0,0,0,0.1);
}

.quiz-button:disabled {
    background: var(--border-color);
    color: var(--secondary-color);
    cursor: not-allowed;
    transform: none;
    box-shadow: none;
}

.quiz-feedback {
    margin-top: 20px;
    padding: 15px;
    border-radius: 6px;
    font-size: 0.95em;
    line-height: 1.5;
    display: none;
}

.quiz-feedback.correct {
    background: #e8f5e8;
    color: #2e7d32;
    border: 1px solid #4caf50;
    display: block;
}

.quiz-feedback.incorrect {
    background: #ffebee;
    color: #c62828;
    border: 1px solid #f44336;
    display: block;
}

.quiz-score {
    font-weight: 600;
    margin-bottom: 8px;
}

.quiz-explanation {
    font-style: italic;
}

/* Interactive Component Styles */
.interactive-component {
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 20px;
    margin: 25px 0;
}

.component-title {
    font-size: 1.1em;
    font-weight: 600;
    color: var(--text-color);
    margin-bottom: 15px;
    display: flex;
    align-items: center;
    gap: 8px;
}

/* Flip Cards */
.flip-cards-container {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 20px;
    margin: 15px 0;
}

.flip-card {
    background-color: transparent;
    height: 180px;
    perspective: 1000px;
}

.flip-card-inner {
    position: relative;
    width: 100%;
    height: 100%;
    text-align: center;
    transition: transform 0.8s;
    transform-style: preserve-3d;
    cursor: pointer;
}

.flip-card.flipped .flip-card-inner {
    transform: rotateY(180deg);
}

.flip-card-front, .flip-card-back {
    position: absolute;
    width: 100%;
    height: 100%;
    backface-visibility: hidden;
    background: var(--bg-color);
    border: 2px solid var(--accent-color);
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 15px;
    box-sizing: border-box;
}

.flip-card-back {
    transform: rotateY(180deg);
    background: var(--accent-color) !important;
    border: 2px solid var(--accent-color);
}

.flip-card-back .flip-card-content {
    color: var(--bg-color);
}

.flip-card-content {
    color: var(--text-color);
    font-size: 0.9em;
    line-height: 1.4;
    text-align: center;
}

/* Variable Sliders with Fixed Tick Marks */
.slider-container {
    margin: 15px 0;
}

.slider-label {
    display: flex;
    justify-content: space-between;
    margin-bottom: 10px;
    font-weight: 500;
    color: var(--text-color);
}

.custom-slider, .sim-slider, #fontSizeSlider, #intensitySlider {
    -webkit-appearance: none;
    appearance: none;
    width: 100%;
    height: 8px;
    border-radius: 5px;
    background: var(--border-color) !important;
    outline: none;
    margin: 10px 0;
    border: none !important;
    position: relative;
}

.custom-slider::-webkit-slider-thumb, 
.sim-slider::-webkit-slider-thumb, 
#fontSizeSlider::-webkit-slider-thumb,
#intensitySlider::-webkit-slider-thumb {
    -webkit-appearance: none !important;
    appearance: none !important;
    width: 20px !important;
    height: 20px !important;
    border-radius: 50% !important;
    background: var(--accent-color) !important;
    cursor: pointer !important;
    border: none !important;
    box-shadow: none !important;
    outline: none !important;
    position: relative;
    z-index: 2;
}

.custom-slider::-moz-range-thumb,
.sim-slider::-moz-range-thumb,
#fontSizeSlider::-moz-range-thumb,
#intensitySlider::-moz-range-thumb {
    width: 20px !important;
    height: 20px !important;
    border-radius: 50% !important;
    background: var(--accent-color) !important;
    cursor: pointer !important;
    border: none !important;
    box-shadow: none !important;
    outline: none !important;
    position: relative;
    z-index: 2;
}

/* Simulation Component Styles */
.sim-button {
    padding: 8px 16px;
    background: var(--accent-color);
    color: white;
    border: none;
    border-radius: 6px;
    cursor: pointer;
    font-size: 0.9em;
    font-weight: 500;
    transition: all 0.3s ease;
    margin: 5px;
}

.sim-button:hover {
    background: var(--secondary-color);
    transform: translateY(-1px);
}

.sim-button:active {
    transform: translateY(0);
}

.simulation-container {
    text-align: center;
    padding: 20px;
}

.simulation-controls {
    margin: 15px 0;
    display: flex;
    gap: 15px;
    justify-content: center;
    flex-wrap: wrap;
    align-items: center;
}

.sim-control-group {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 5px;
}

.sim-control-group label {
    font-size: 0.9em;
    color: var(--text-color);
    font-weight: 500;
}

.sim-select {
    padding: 5px 8px;
    border: 1px solid var(--border-color);
    border-radius: 4px;
    background: var(--card-bg);
    color: var(--text-color);
    font-size: 0.9em;
}

.sim-input {
    padding: 5px 8px;
    border: 1px solid var(--border-color);
    border-radius: 4px;
    background: var(--card-bg);
    color: var(--text-color);
    font-size: 0.9em;
    text-align: center;
}

.simulation-display {
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: 6px;
    padding: 20px;
    margin: 15px 0;
    min-height: 120px;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-direction: column;
    color: var(--text-color);
}

/* Improved slider tick marks positioning */
.slider-with-ticks {
    position: relative;
    margin: 20px 0;
}

.slider-ticks {
    position: absolute;
    top: 50%;
    left: 10px;
    right: 10px;
    height: 8px;
    transform: translateY(-50%);
    pointer-events: none;
    z-index: 1;
}

.tick-mark {
    position: absolute;
    width: 2px;
    height: 12px;
    background: var(--secondary-color);
    transform: translateY(-25%) translateX(-50%);
    opacity: 0.7;
}

.slider-output {
    background: var(--hover-color);
    padding: 15px;
    border-radius: 6px;
    margin-top: 15px;
    border-left: 4px solid var(--accent-color);
}

/* Quick Facts with matching flip card style */
.quick-facts {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 15px;
    margin: 25px 0;
}

.fact-card {
    background: var(--bg-color);
    border: 2px solid var(--accent-color);
    border-radius: 8px;
    padding: 15px;
    text-align: center;
    transition: transform 0.2s ease;
    height: 180px;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
}

.fact-card:hover {
    transform: translateY(-2px);
}

.fact-icon {
    font-size: 2em;
    margin-bottom: 10px;
}

.fact-title {
    font-weight: 600;
    margin-bottom: 8px;
    color: var(--text-color);
    font-size: 0.9em;
}

.fact-description {
    font-size: 0.85em;
    color: var(--secondary-color);
    line-height: 1.4;
}

/* Mindmap Node Styles */
.mindmap-container .mindmap-node.central {
    background-color: var(--accent-color) !important;
    border: 3px solid var(--card-bg) !important;
    color: white !important;
}

.mindmap-container .mindmap-node.central.selected {
    background-color: var(--card-bg) !important;
    border: 4px solid var(--accent-color) !important;
    color: var(--text-color) !important;
}

.mindmap-container .mindmap-node.branch {
    background-color: var(--hover-color) !important;
    border: 2px solid var(--border-color) !important;
    color: var(--text-color) !important;
}

div.mindmap-container div.mindmap-node.branch.selected {
    background-color: var(--accent-color) !important;
    border: 2px solid var(--card-bg) !important;
    color: white !important;
}

.mindmap-container .mindmap-node.leaf {
    background-color: var(--card-bg) !important;
    border: 1px solid var(--border-color) !important;
    color: var(--text-color) !important;
}

.mindmap-container .mindmap-node.leaf.selected {
    background-color: var(--accent-color) !important;
    border: 2px solid var(--card-bg) !important;
    color: white !important;
}