/**
 * STEM Learning Hub - Technology Page Styles
 * Interactive and engaging styles for 8th graders
 */

/* =========================================
   Progress Tracker
   ========================================= */
.learning-progress {
    background: var(--bg-secondary);
    padding: var(--spacing-md);
    border-radius: var(--radius-lg);
    margin-bottom: var(--spacing-xl);
}

.learning-progress-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--spacing-sm);
}

.learning-progress-header h4 {
    margin: 0;
    font-size: var(--font-size-sm);
    color: var(--text-secondary);
}

.learning-progress-text {
    font-weight: 600;
    color: var(--primary-color);
}

.learning-progress-track {
    height: 8px;
    background: var(--border-color);
    border-radius: var(--radius-full);
    overflow: hidden;
}

.learning-progress-bar {
    height: 100%;
    background: linear-gradient(90deg, var(--technology-color), var(--primary-color));
    border-radius: var(--radius-full);
    transition: width 0.5s ease;
    width: 0%;
}

/* =========================================
   Enhanced Binary Converter
   ========================================= */
#binary-visual {
    display: flex;
    gap: var(--spacing-sm);
    justify-content: center;
    margin: var(--spacing-lg) 0;
}

.bit {
    width: 48px;
    height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-family: 'Courier New', monospace;
    font-size: var(--font-size-xl);
    font-weight: 700;
    border-radius: var(--radius-md);
    animation: bitFlip 0.3s ease forwards;
    opacity: 0;
    transform: rotateX(90deg);
}

.bit-on {
    background: var(--technology-color);
    color: white;
    box-shadow: 0 0 15px rgba(59, 130, 246, 0.5);
}

.bit-off {
    background: var(--bg-tertiary);
    color: var(--text-secondary);
}

@keyframes bitFlip {
    to {
        opacity: 1;
        transform: rotateX(0);
    }
}

.highlight-result {
    animation: pulse 0.5s ease;
}

@keyframes pulse {
    0%, 100% { transform: scale(1); }
    50% { transform: scale(1.1); }
}

/* Conversion Steps */
#conversion-steps {
    margin-top: var(--spacing-xl);
    padding: var(--spacing-lg);
    background: var(--bg-secondary);
    border-radius: var(--radius-lg);
}

#conversion-steps h4 {
    margin-bottom: var(--spacing-md);
}

.conversion-step {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    padding: var(--spacing-sm) var(--spacing-md);
    background: var(--bg-primary);
    border-radius: var(--radius-md);
    margin-bottom: var(--spacing-sm);
    opacity: 0;
    animation: slideIn 0.3s ease forwards;
}

@keyframes slideIn {
    from {
        opacity: 0;
        transform: translateX(-20px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

.step-num {
    font-weight: 700;
    color: var(--primary-color);
    min-width: 40px;
}

.step-operator {
    color: var(--text-secondary);
}

.step-quotient {
    font-weight: 600;
}

.step-remainder {
    margin-left: auto;
    color: var(--text-secondary);
}

.step-remainder strong {
    color: var(--technology-color);
}

.conversion-result {
    margin-top: var(--spacing-md);
    padding: var(--spacing-md);
    background: var(--technology-color);
    color: white;
    border-radius: var(--radius-md);
    text-align: center;
    font-weight: 500;
}

.conversion-result strong {
    font-family: 'Courier New', monospace;
    font-size: var(--font-size-lg);
}

/* =========================================
   Computer Builder
   ========================================= */
#computer-builder {
    margin-top: var(--spacing-xl);
}

.builder-container {
    display: grid;
    grid-template-columns: 1fr 2fr;
    gap: var(--spacing-xl);
}

@media (max-width: 768px) {
    .builder-container {
        grid-template-columns: 1fr;
    }
}

.computer-parts {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-md);
    align-content: flex-start;
}

.computer-part {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-md);
    background: var(--bg-secondary);
    border: 2px dashed var(--border-color);
    border-radius: var(--radius-lg);
    cursor: grab;
    transition: all var(--transition-fast);
    user-select: none;
}

.computer-part:hover {
    border-color: var(--technology-color);
    background: rgba(59, 130, 246, 0.1);
    transform: scale(1.05);
}

.computer-part.dragging {
    opacity: 0.5;
    cursor: grabbing;
}

.computer-part.placed {
    opacity: 0.3;
    pointer-events: none;
}

.part-icon {
    font-size: 1.5rem;
}

.part-name {
    font-weight: 500;
}

.computer-case {
    background: var(--bg-tertiary);
    border: 3px solid var(--border-color);
    border-radius: var(--radius-xl);
    padding: var(--spacing-xl);
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--spacing-lg);
    min-height: 400px;
}

.component-slot {
    background: var(--bg-primary);
    border: 2px dashed var(--border-color);
    border-radius: var(--radius-lg);
    padding: var(--spacing-lg);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    text-align: center;
    transition: all var(--transition-fast);
}

.component-slot.drag-over {
    border-color: var(--technology-color);
    background: rgba(59, 130, 246, 0.1);
    transform: scale(1.02);
}

.component-slot.filled {
    border-style: solid;
    border-color: var(--technology-color);
    background: rgba(59, 130, 246, 0.05);
}

.component-slot.success-flash {
    animation: successFlash 0.5s ease;
}

@keyframes successFlash {
    0%, 100% { box-shadow: none; }
    50% { box-shadow: 0 0 20px rgba(59, 130, 246, 0.5); }
}

.component-slot.error-shake {
    animation: errorShake 0.5s ease;
}

@keyframes errorShake {
    0%, 100% { transform: translateX(0); }
    25% { transform: translateX(-10px); }
    75% { transform: translateX(10px); }
}

.slot-label {
    color: var(--text-light);
    font-size: var(--font-size-sm);
}

.placed-icon {
    font-size: 2rem;
    margin-bottom: var(--spacing-sm);
}

.placed-name {
    font-weight: 600;
    color: var(--text-primary);
}

#component-info {
    margin-top: var(--spacing-lg);
    padding: var(--spacing-lg);
    background: var(--bg-secondary);
    border-radius: var(--radius-lg);
    opacity: 0;
    transform: translateY(10px);
    transition: all var(--transition-base);
}

#component-info.show {
    opacity: 1;
    transform: translateY(0);
}

.info-content {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
}

.info-icon {
    font-size: 2rem;
}

.info-content h4 {
    margin-bottom: var(--spacing-xs);
}

.info-content p {
    margin: 0;
    color: var(--text-secondary);
}

#reset-builder {
    margin-top: var(--spacing-md);
}

/* =========================================
   Code Playground
   ========================================= */
#code-playground {
    background: var(--bg-secondary);
    border-radius: var(--radius-xl);
    padding: var(--spacing-xl);
    margin-top: var(--spacing-xl);
}

.playground-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--spacing-lg);
    flex-wrap: wrap;
    gap: var(--spacing-md);
}

.challenge-title {
    font-size: var(--font-size-lg);
    font-weight: 600;
    color: var(--primary-color);
}

.challenge-nav {
    display: flex;
    gap: var(--spacing-sm);
}

.challenge-nav button {
    padding: var(--spacing-sm) var(--spacing-md);
    background: var(--bg-tertiary);
    border-radius: var(--radius-md);
    font-weight: 500;
    transition: all var(--transition-fast);
}

.challenge-nav button:hover:not(:disabled) {
    background: var(--border-color);
}

.challenge-nav button:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

.challenge-description {
    color: var(--text-secondary);
    margin-bottom: var(--spacing-lg);
    padding: var(--spacing-md);
    background: var(--bg-tertiary);
    border-radius: var(--radius-md);
    border-left: 4px solid var(--technology-color);
}

.playground-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-lg);
}

@media (max-width: 768px) {
    .playground-content {
        grid-template-columns: 1fr;
    }
}

.editor-section,
.output-section {
    display: flex;
    flex-direction: column;
}

.section-label {
    font-weight: 600;
    margin-bottom: var(--spacing-sm);
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.code-editor {
    flex: 1;
    min-height: 200px;
    padding: var(--spacing-md);
    background: #1e1e1e;
    color: #9cdcfe;
    font-family: 'Courier New', monospace;
    font-size: var(--font-size-sm);
    line-height: 1.6;
    border: none;
    border-radius: var(--radius-md);
    resize: none;
}

.code-editor:focus {
    outline: 2px solid var(--technology-color);
}

.code-output {
    flex: 1;
    min-height: 200px;
    padding: var(--spacing-md);
    background: #1e1e1e;
    color: #dcdcdc;
    font-family: 'Courier New', monospace;
    font-size: var(--font-size-sm);
    line-height: 1.6;
    border-radius: var(--radius-md);
    overflow-y: auto;
    white-space: pre-wrap;
}

.code-output.success {
    border: 2px solid var(--science-color);
    background: rgba(16, 185, 129, 0.1);
    color: #4ade80;
}

.code-output.error {
    border: 2px solid var(--mathematics-color);
    color: #f87171;
}

.playground-actions {
    display: flex;
    gap: var(--spacing-md);
    margin-top: var(--spacing-lg);
    justify-content: center;
}

.run-code-btn {
    background: var(--science-color);
    color: white;
    padding: var(--spacing-md) var(--spacing-xl);
    border-radius: var(--radius-lg);
    font-weight: 600;
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    transition: all var(--transition-fast);
}

.run-code-btn:hover {
    background: #0ea371;
    transform: translateY(-2px);
}

.hint-btn {
    background: var(--bg-tertiary);
    padding: var(--spacing-md) var(--spacing-xl);
    border-radius: var(--radius-lg);
    font-weight: 500;
    transition: all var(--transition-fast);
}

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

.challenge-progress {
    display: flex;
    justify-content: center;
    gap: var(--spacing-sm);
    margin-top: var(--spacing-lg);
}

.progress-dot {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    background: var(--border-color);
    transition: all var(--transition-fast);
}

.progress-dot.completed {
    background: var(--science-color);
}

.progress-dot.active {
    background: var(--primary-color);
    transform: scale(1.2);
}

/* =========================================
   Password Checker
   ========================================= */
#password-checker {
    background: var(--bg-secondary);
    border-radius: var(--radius-xl);
    padding: var(--spacing-xl);
    margin-top: var(--spacing-lg);
}

.password-input-group {
    display: flex;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-lg);
}

.password-input {
    flex: 1;
    padding: var(--spacing-md);
    border: 2px solid var(--border-color);
    border-radius: var(--radius-md);
    font-size: var(--font-size-lg);
    font-family: 'Courier New', monospace;
    transition: border-color var(--transition-fast);
}

.password-input:focus {
    outline: none;
    border-color: var(--primary-color);
}

.toggle-password {
    padding: var(--spacing-md);
    font-size: var(--font-size-lg);
    background: var(--bg-tertiary);
    border-radius: var(--radius-md);
    transition: background var(--transition-fast);
}

.toggle-password:hover {
    background: var(--border-color);
}

.strength-meter {
    margin-bottom: var(--spacing-lg);
}

.strength-bar {
    height: 12px;
    background: var(--bg-tertiary);
    border-radius: var(--radius-full);
    overflow: hidden;
    margin-bottom: var(--spacing-sm);
}

.strength-bar-fill {
    height: 100%;
    border-radius: var(--radius-full);
    transition: all 0.3s ease;
    width: 0%;
}

.strength-bar-fill.weak {
    background: #ef4444;
}

.strength-bar-fill.fair {
    background: #f59e0b;
}

.strength-bar-fill.good {
    background: #10b981;
}

.strength-bar-fill.strong {
    background: linear-gradient(90deg, #10b981, #4361ee);
}

.strength-text {
    font-weight: 600;
    text-align: center;
}

.strength-text.weak { color: #ef4444; }
.strength-text.fair { color: #f59e0b; }
.strength-text.good { color: #10b981; }
.strength-text.strong { color: #4361ee; }

.password-tips {
    background: var(--bg-primary);
    border-radius: var(--radius-md);
    padding: var(--spacing-md);
}

.password-tips li {
    padding: var(--spacing-xs) 0;
    font-size: var(--font-size-sm);
}

.tip-warning {
    color: var(--engineering-color);
}

.tip-success {
    color: var(--science-color);
}

/* =========================================
   Network Simulation
   ========================================= */
#network-simulation {
    background: var(--bg-secondary);
    border-radius: var(--radius-xl);
    padding: var(--spacing-xl);
    margin-top: var(--spacing-lg);
}

.network-diagram {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--spacing-xl) 0;
    position: relative;
}

.network-node {
    background: var(--bg-primary);
    border: 2px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: var(--spacing-md) var(--spacing-lg);
    text-align: center;
    transition: all var(--transition-base);
    z-index: 1;
}

.network-node.active {
    border-color: var(--technology-color);
    box-shadow: 0 0 20px rgba(59, 130, 246, 0.3);
}

.network-node.sending {
    animation: nodePulse 0.5s ease infinite;
}

@keyframes nodePulse {
    0%, 100% { transform: scale(1); }
    50% { transform: scale(1.05); }
}

.node-icon {
    font-size: 2rem;
    display: block;
    margin-bottom: var(--spacing-xs);
}

.node-label {
    font-size: var(--font-size-sm);
    font-weight: 500;
}

.packet-path {
    position: absolute;
    left: 60px;
    right: 60px;
    top: 50%;
    height: 4px;
    background: var(--border-color);
    transform: translateY(-50%);
}

.data-packet {
    position: absolute;
    font-size: 1.5rem;
    top: 50%;
    left: 0;
    transform: translate(-50%, -50%);
    transition: left 0.8s ease;
    z-index: 2;
}

.simulation-controls {
    display: flex;
    justify-content: center;
    margin: var(--spacing-lg) 0;
}

.send-packet-btn {
    background: var(--technology-color);
    color: white;
    padding: var(--spacing-md) var(--spacing-2xl);
    border-radius: var(--radius-lg);
    font-weight: 600;
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    transition: all var(--transition-fast);
}

.send-packet-btn:hover {
    background: #2563eb;
    transform: translateY(-2px);
}

.network-log {
    background: #1e1e1e;
    color: #dcdcdc;
    padding: var(--spacing-md);
    border-radius: var(--radius-md);
    font-family: 'Courier New', monospace;
    font-size: var(--font-size-sm);
    max-height: 150px;
    overflow-y: auto;
}

.log-entry {
    padding: var(--spacing-xs) 0;
    animation: fadeIn 0.3s ease;
}

.log-time {
    color: var(--technology-color);
    margin-right: var(--spacing-md);
}

/* =========================================
   Typing Challenge
   ========================================= */
#typing-challenge {
    background: var(--bg-secondary);
    border-radius: var(--radius-xl);
    padding: var(--spacing-xl);
    margin-top: var(--spacing-lg);
}

.typing-display {
    background: #1e1e1e;
    padding: var(--spacing-xl);
    border-radius: var(--radius-lg);
    margin-bottom: var(--spacing-lg);
    min-height: 80px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.display-text {
    font-family: 'Courier New', monospace;
    font-size: var(--font-size-xl);
    letter-spacing: 2px;
}

.char {
    color: #6b7280;
    transition: color 0.1s ease;
}

.char.correct {
    color: #4ade80;
}

.char.incorrect {
    color: #f87171;
    text-decoration: underline;
}

.char.current {
    background: rgba(59, 130, 246, 0.3);
    animation: blink 1s infinite;
}

@keyframes blink {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.5; }
}

.typing-input {
    width: 100%;
    padding: var(--spacing-md);
    font-family: 'Courier New', monospace;
    font-size: var(--font-size-lg);
    border: 2px solid var(--border-color);
    border-radius: var(--radius-md);
    margin-bottom: var(--spacing-lg);
}

.typing-input:focus {
    outline: none;
    border-color: var(--technology-color);
}

.typing-input:disabled {
    background: var(--bg-tertiary);
}

.typing-stats {
    display: flex;
    justify-content: center;
    gap: var(--spacing-2xl);
    margin-bottom: var(--spacing-lg);
}

.stat-item {
    text-align: center;
}

.stat-label {
    display: block;
    font-size: var(--font-size-sm);
    color: var(--text-secondary);
    margin-bottom: var(--spacing-xs);
}

.stat-value {
    font-size: var(--font-size-2xl);
    font-weight: 700;
    color: var(--primary-color);
}

.stat-unit {
    font-size: var(--font-size-sm);
    color: var(--text-secondary);
}

.start-typing-btn {
    display: block;
    margin: 0 auto;
    background: var(--primary-color);
    color: white;
    padding: var(--spacing-md) var(--spacing-2xl);
    border-radius: var(--radius-lg);
    font-weight: 600;
    transition: all var(--transition-fast);
}

.start-typing-btn:hover {
    background: var(--primary-dark);
    transform: translateY(-2px);
}

.typing-result {
    background: var(--bg-primary);
    border: 2px solid var(--science-color);
    border-radius: var(--radius-lg);
    padding: var(--spacing-lg);
    text-align: center;
    margin-top: var(--spacing-lg);
    display: none;
}

.typing-result.show {
    display: block;
    animation: slideUp 0.3s ease;
}

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

.final-stats {
    display: flex;
    justify-content: center;
    gap: var(--spacing-xl);
    margin-top: var(--spacing-md);
    font-weight: 600;
    color: var(--primary-color);
}

/* =========================================
   Tech Quiz Enhancements
   ========================================= */
.tech-quiz {
    background: linear-gradient(135deg, var(--technology-color) 0%, var(--primary-color) 100%);
    border-radius: var(--radius-xl);
    padding: var(--spacing-xl);
    color: white;
}

.tech-quiz h3 {
    color: white;
    margin-bottom: var(--spacing-lg);
}

.quiz-option {
    background: rgba(255, 255, 255, 0.15);
    border: 2px solid transparent;
    border-radius: var(--radius-md);
    padding: var(--spacing-md);
    cursor: pointer;
    transition: all var(--transition-fast);
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-sm);
}

.quiz-option:hover {
    background: rgba(255, 255, 255, 0.25);
}

.quiz-option.selected {
    border-color: white;
    background: rgba(255, 255, 255, 0.3);
}

.quiz-option.correct {
    background: rgba(16, 185, 129, 0.3);
    border-color: #4ade80;
}

.quiz-option.incorrect {
    background: rgba(239, 68, 68, 0.3);
    border-color: #f87171;
}

.quiz-option input {
    accent-color: white;
}

.quiz-feedback {
    margin-top: var(--spacing-md);
    padding: var(--spacing-md);
    border-radius: var(--radius-md);
    font-weight: 600;
    text-align: center;
}

.quiz-feedback.correct {
    background: rgba(16, 185, 129, 0.2);
}

.quiz-feedback.incorrect {
    background: rgba(239, 68, 68, 0.2);
}

/* =========================================
   Notifications
   ========================================= */
.notification {
    position: fixed;
    top: 20px;
    right: 20px;
    padding: var(--spacing-md) var(--spacing-lg);
    border-radius: var(--radius-lg);
    background: white;
    box-shadow: var(--shadow-lg);
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    z-index: 9999;
    transform: translateX(120%);
    transition: transform var(--transition-base);
}

.notification.show {
    transform: translateX(0);
}

.notification-success {
    border-left: 4px solid var(--science-color);
}

.notification-error {
    border-left: 4px solid var(--mathematics-color);
}

.notification-warning {
    border-left: 4px solid var(--engineering-color);
}

.notification-info {
    border-left: 4px solid var(--technology-color);
}

.notification-close {
    font-size: var(--font-size-xl);
    color: var(--text-light);
    padding: 0;
    line-height: 1;
}

.notification-close:hover {
    color: var(--text-primary);
}

/* =========================================
   Achievement Popup
   ========================================= */
.achievement-popup {
    position: fixed;
    bottom: 20px;
    left: 50%;
    transform: translateX(-50%) translateY(120%);
    background: linear-gradient(135deg, #fbbf24 0%, #f59e0b 100%);
    color: white;
    padding: var(--spacing-lg) var(--spacing-xl);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-lg);
    z-index: 9999;
    transition: transform var(--transition-base);
}

.achievement-popup.show {
    transform: translateX(-50%) translateY(0);
}

.achievement-content {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
}

.achievement-icon {
    font-size: 2rem;
}

.achievement-content h4 {
    margin: 0;
    font-size: var(--font-size-sm);
    opacity: 0.9;
}

.achievement-content p {
    margin: 0;
    font-weight: 600;
}

/* =========================================
   Confetti Animation
   ========================================= */
.confetti {
    position: absolute;
    width: 10px;
    height: 10px;
    border-radius: 2px;
    animation: confettiFall 3s ease-out forwards;
}

@keyframes confettiFall {
    0% {
        top: -10px;
        opacity: 1;
        transform: rotate(0deg);
    }
    100% {
        top: 100%;
        opacity: 0;
        transform: rotate(720deg);
    }
}

/* =========================================
   Interactive Enhancements
   ========================================= */
.interactive-hint {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-xs);
    padding: var(--spacing-xs) var(--spacing-sm);
    background: rgba(59, 130, 246, 0.1);
    border-radius: var(--radius-sm);
    font-size: var(--font-size-sm);
    color: var(--technology-color);
}

.interactive-hint::before {
    content: '✨';
}

.drag-hint {
    text-align: center;
    color: var(--text-light);
    font-size: var(--font-size-sm);
    margin-bottom: var(--spacing-md);
}

/* Hover tooltips */
[data-tooltip] {
    position: relative;
    cursor: help;
}

[data-tooltip]:hover::after {
    content: attr(data-tooltip);
    position: absolute;
    bottom: 100%;
    left: 50%;
    transform: translateX(-50%);
    background: var(--text-primary);
    color: white;
    padding: var(--spacing-sm) var(--spacing-md);
    border-radius: var(--radius-md);
    font-size: var(--font-size-sm);
    white-space: nowrap;
    z-index: 100;
    animation: tooltipFade 0.2s ease;
}

@keyframes tooltipFade {
    from { opacity: 0; transform: translateX(-50%) translateY(10px); }
    to { opacity: 1; transform: translateX(-50%) translateY(0); }
}

/* =========================================
   Dark mode support (optional)
   ========================================= */
@media (prefers-color-scheme: dark) {
    .code-editor,
    .code-output,
    .network-log {
        background: #0d1117;
    }
}

/* =========================================
   Reduced Motion Support
   ========================================= */
@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
}

/* =========================================
   Print Styles
   ========================================= */
@media print {
    #computer-builder,
    #code-playground,
    #password-checker,
    #network-simulation,
    #typing-challenge,
    .notification,
    .achievement-popup {
        display: none !important;
    }
}