/* Base Styles */
:root {
    --primary-color: #6200ea;
    --secondary-color: #03dac6;
    --accent-color: #ff4081;
    --background-light: #f5f5f5;
    --background-dark: #121212;
    --text-light: #333333;
    --text-dark: #ffffff;
    --card-light: #ffffff;
    --card-dark: #1e1e1e;
    --shadow-light: 0 4px 6px rgba(0, 0, 0, 0.1);
    --shadow-dark: 0 4px 6px rgba(0, 0, 0, 0.3);
    --transition-speed: 0.3s;
}

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

body {
    font-family: 'Roboto', sans-serif;
    line-height: 1.6;
    color: var(--text-light);
    background-color: var(--background-light);
    transition: background-color var(--transition-speed), color var(--transition-speed);
    overflow-x: hidden;
}

body.dark-mode {
    color: var(--text-dark);
    background-color: var(--background-dark);
}

h1, h2, h3, h4, h5, h6 {
    font-weight: 700;
    margin-bottom: 1rem;
    line-height: 1.2;
}

h1 {
    font-size: 3rem;
}

h2 {
    font-size: 2.5rem;
    margin-bottom: 2rem;
    text-align: center;
}

h3 {
    font-size: 1.8rem;
}

h4 {
    font-size: 1.4rem;
}

p {
    margin-bottom: 1.5rem;
}

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

a:hover {
    color: var(--accent-color);
}

ul {
    list-style: none;
}

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

.highlight {
    color: var(--primary-color);
    position: relative;
    display: inline-block;
}

.highlight::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    height: 4px;
    background-color: var(--secondary-color);
    transform: scaleX(0);
    transform-origin: bottom right;
    transition: transform 0.3s ease-out;
}

.highlight:hover::after {
    transform: scaleX(1);
    transform-origin: bottom left;
}

.btn {
    display: inline-block;
    padding: 0.8rem 1.5rem;
    border-radius: 30px;
    font-weight: 500;
    text-align: center;
    cursor: pointer;
    transition: all var(--transition-speed);
    border: none;
    outline: none;
}

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

.btn.secondary {
    background-color: transparent;
    border: 2px solid var(--primary-color);
    color: var(--primary-color);
}

.btn.primary:hover {
    background-color: #5000d6;
    transform: translateY(-2px);
    box-shadow: 0 4px 8px rgba(98, 0, 234, 0.3);
}

.btn.secondary:hover {
    background-color: rgba(98, 0, 234, 0.1);
    transform: translateY(-2px);
}

.hidden {
    display: none;
}

/* Bot Cursor */
#bot-cursor {
    position: fixed;
    width: 40px;
    height: 40px;
    background-image: url('../images/bot-cursor.svg');
    background-size: contain;
    background-repeat: no-repeat;
    pointer-events: none;
    z-index: 9999;
    transition: transform 0.1s ease-out;
    transform: translate(-50%, -50%);
}

/* Background Bot */
#background-bot {
    position: fixed;
    width: 80px;
    height: 80px;
    background-image: url('../images/star-wars-bot.svg');
    background-size: contain;
    background-repeat: no-repeat;
    pointer-events: none;
    z-index: -1;
    opacity: 0.3;
    transition: all 0.5s ease-out;
}

/* Header */
header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1.5rem 5%;
    position: sticky;
    top: 0;
    z-index: 100;
    background-color: var(--background-light);
    box-shadow: var(--shadow-light);
    transition: background-color var(--transition-speed), box-shadow var(--transition-speed);
}

body.dark-mode header {
    background-color: var(--background-dark);
    box-shadow: var(--shadow-dark);
}

.logo {
    display: flex;
    align-items: center;
}

.logo-text {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--primary-color);
    font-family: 'Space Mono', monospace;
}

nav ul {
    display: flex;
    gap: 2rem;
}

nav a {
    color: var(--text-light);
    font-weight: 500;
    position: relative;
    padding: 0.5rem 0;
}

body.dark-mode nav a {
    color: var(--text-dark);
}

nav a::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    height: 2px;
    background-color: var(--primary-color);
    transform: scaleX(0);
    transform-origin: bottom right;
    transition: transform 0.3s ease-out;
}

nav a:hover::after,
nav a.active::after {
    transform: scaleX(1);
    transform-origin: bottom left;
}

.theme-toggle button {
    background: none;
    border: none;
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    color: var(--text-light);
    font-size: 1rem;
    padding: 0.5rem;
    border-radius: 20px;
    transition: background-color var(--transition-speed);
}

body.dark-mode .theme-toggle button {
    color: var(--text-dark);
}

.theme-toggle button:hover {
    background-color: rgba(0, 0, 0, 0.05);
}

body.dark-mode .theme-toggle button:hover {
    background-color: rgba(255, 255, 255, 0.05);
}

/* Main Content */
main {
    min-height: 100vh;
}

.content-section {
    padding: 5rem 5%;
    margin-bottom: 2rem;
}

/* Hero Section */
.hero {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 8rem 5%;
    background: linear-gradient(135deg, rgba(98, 0, 234, 0.1) 0%, rgba(3, 218, 198, 0.1) 100%);
}

body.dark-mode .hero {
    background: linear-gradient(135deg, rgba(98, 0, 234, 0.2) 0%, rgba(3, 218, 198, 0.2) 100%);
}

.hero-content {
    flex: 1;
    max-width: 600px;
}

.hero-content h1 {
    margin-bottom: 1.5rem;
}

.hero-content p {
    font-size: 1.2rem;
    margin-bottom: 2rem;
}

.cta-buttons {
    display: flex;
    gap: 1rem;
}

.hero-image {
    flex: 1;
    display: flex;
    justify-content: center;
    align-items: center;
    max-width: 500px;
}

/* Content Grid */
.content-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 3rem;
    margin-top: 3rem;
}

.text-content {
    display: flex;
    flex-direction: column;
    justify-content: center;
}

.interactive-element {
    display: flex;
    justify-content: center;
    align-items: center;
    background-color: var(--card-light);
    border-radius: 10px;
    padding: 2rem;
    box-shadow: var(--shadow-light);
    transition: background-color var(--transition-speed), box-shadow var(--transition-speed);
}

body.dark-mode .interactive-element {
    background-color: var(--card-dark);
    box-shadow: var(--shadow-dark);
}

/* Timeline */
.timeline {
    position: relative;
    margin: 2rem 0;
}

.timeline::before {
    content: '';
    position: absolute;
    top: 0;
    left: 20px;
    height: 100%;
    width: 4px;
    background-color: var(--primary-color);
}

.timeline-item {
    position: relative;
    padding-left: 50px;
    margin-bottom: 2rem;
}

.timeline-date {
    position: absolute;
    left: 0;
    top: 0;
    width: 40px;
    height: 40px;
    background-color: var(--primary-color);
    color: white;
    border-radius: 50%;
    display: flex;
    justify-content: center;
    align-items: center;
    font-weight: bold;
    font-size: 0.8rem;
}

.timeline-content {
    background-color: var(--card-light);
    padding: 1.5rem;
    border-radius: 10px;
    box-shadow: var(--shadow-light);
    transition: background-color var(--transition-speed), box-shadow var(--transition-speed);
}

body.dark-mode .timeline-content {
    background-color: var(--card-dark);
    box-shadow: var(--shadow-dark);
}

/* AI Types Diagram */
.ai-types-diagram {
    display: grid;
    grid-template-columns: 1fr 1fr;
    grid-template-rows: 1fr 1fr;
    gap: 1.5rem;
    width: 100%;
    height: 100%;
}

.diagram-node {
    background-color: var(--card-light);
    border-radius: 10px;
    padding: 1.5rem;
    box-shadow: var(--shadow-light);
    transition: all var(--transition-speed);
    cursor: pointer;
    border: 2px solid transparent;
}

body.dark-mode .diagram-node {
    background-color: var(--card-dark);
    box-shadow: var(--shadow-dark);
}

.diagram-node:hover {
    transform: translateY(-5px);
    border-color: var(--primary-color);
}

.diagram-node[data-type="supervised"] {
    border-top: 4px solid #ff4081;
}

.diagram-node[data-type="unsupervised"] {
    border-top: 4px solid #03dac6;
}

.diagram-node[data-type="reinforcement"] {
    border-top: 4px solid #ffab00;
}

.diagram-node[data-type="deep"] {
    border-top: 4px solid #6200ea;
}

/* Feature List */
.feature-list {
    margin-top: 2rem;
}

.feature-list li {
    display: flex;
    align-items: center;
    margin-bottom: 1rem;
    padding: 1rem;
    background-color: var(--card-light);
    border-radius: 10px;
    box-shadow: var(--shadow-light);
    transition: all var(--transition-speed);
}

body.dark-mode .feature-list li {
    background-color: var(--card-dark);
    box-shadow: var(--shadow-dark);
}

.feature-list li:hover {
    transform: translateX(10px);
}

.feature-icon {
    display: flex;
    justify-content: center;
    align-items: center;
    width: 40px;
    height: 40px;
    background-color: var(--primary-color);
    color: white;
    border-radius: 50%;
    margin-right: 1rem;
}

.feature-text {
    flex: 1;
}

/* AI Examples */
.ai-examples-container {
    margin-top: 3rem;
}

.ai-example-tabs {
    display: flex;
    justify-content: center;
    gap: 1rem;
    margin-bottom: 2rem;
}

.tab-btn {
    padding: 0.8rem 1.5rem;
    background-color: transparent;
    border: 2px solid var(--primary-color);
    border-radius: 30px;
    color: var(--primary-color);
    font-weight: 500;
    cursor: pointer;
    transition: all var(--transition-speed);
}

.tab-btn:hover, .tab-btn.active {
    background-color: var(--primary-color);
    color: white;
}

.tab-content {
    display: none;
}

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

.example-grid {
    display: grid;
    grid-template-columns: 1fr 2fr;
    gap: 3rem;
}

.example-image {
    display: flex;
    justify-content: center;
    align-items: center;
    background-color: var(--card-light);
    border-radius: 10px;
    padding: 2rem;
    box-shadow: var(--shadow-light);
    transition: background-color var(--transition-speed), box-shadow var(--transition-speed);
}

body.dark-mode .example-image {
    background-color: var(--card-dark);
    box-shadow: var(--shadow-dark);
}

.example-info {
    background-color: var(--card-light);
    border-radius: 10px;
    padding: 2rem;
    box-shadow: var(--shadow-light);
    transition: background-color var(--transition-speed), box-shadow var(--transition-speed);
}

body.dark-mode .example-info {
    background-color: var(--card-dark);
    box-shadow: var(--shadow-dark);
}

.example-info ul {
    list-style: disc;
    padding-left: 1.5rem;
    margin-top: 1rem;
}

.example-info li {
    margin-bottom: 0.5rem;
}

/* Roadmap */
.roadmap-container {
    margin-top: 3rem;
}

.roadmap-controls {
    display: flex;
    justify-content: center;
    gap: 1rem;
    margin-bottom: 2rem;
}

.roadmap-btn {
    padding: 0.8rem 1.5rem;
    background-color: transparent;
    border: 2px solid var(--primary-color);
    border-radius: 30px;
    color: var(--primary-color);
    font-weight: 500;
    cursor: pointer;
    transition: all var(--transition-speed);
}

.roadmap-btn:hover, .roadmap-btn.active {
    background-color: var(--primary-color);
    color: white;
}

.roadmap-content {
    background-color: var(--card-light);
    border-radius: 10px;
    padding: 2rem;
    box-shadow: var(--shadow-light);
    min-height: 400px;
    transition: background-color var(--transition-speed), box-shadow var(--transition-speed);
}

body.dark-mode .roadmap-content {
    background-color: var(--card-dark);
    box-shadow: var(--shadow-dark);
}

/* Daily Challenge */
.challenge-container {
    margin-top: 3rem;
    background-color: var(--card-light);
    border-radius: 10px;
    overflow: hidden;
    box-shadow: var(--shadow-light);
    transition: background-color var(--transition-speed), box-shadow var(--transition-speed);
}

body.dark-mode .challenge-container {
    background-color: var(--card-dark);
    box-shadow: var(--shadow-dark);
}

.challenge-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1.5rem 2rem;
    background-color: var(--primary-color);
    color: white;
}

.streak-counter {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.streak-icon {
    color: #ffab00;
}

.streak-count {
    font-weight: bold;
    font-size: 1.2rem;
}

.challenge-content {
    padding: 2rem;
}

.challenge-description {
    margin-bottom: 2rem;
}

.challenge-options {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1rem;
    margin-top: 1.5rem;
}

.option-btn {
    padding: 1rem;
    background-color: var(--background-light);
    border: 2px solid var(--primary-color);
    border-radius: 10px;
    font-size: 1rem;
    cursor: pointer;
    transition: all var(--transition-speed);
}

body.dark-mode .option-btn {
    background-color: var(--background-dark);
    color: var(--text-dark);
}

.option-btn:hover {
    background-color: rgba(98, 0, 234, 0.1);
}

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

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

.challenge-result {
    margin-top: 2rem;
    padding: 1.5rem;
    border-radius: 10px;
    background-color: var(--background-light);
    transition: background-color var(--transition-speed);
}

body.dark-mode .challenge-result {
    background-color: var(--background-dark);
}

.result-message {
    font-weight: bold;
    font-size: 1.2rem;
    margin-bottom: 1rem;
}

/* Footer */
footer {
    background-color: var(--card-light);
    padding: 4rem 5% 2rem;
    box-shadow: 0 -4px 6px rgba(0, 0, 0, 0.05);
    transition: background-color var(--transition-speed), box-shadow var(--transition-speed);
}

body.dark-mode footer {
    background-color: var(--card-dark);
    box-shadow: 0 -4px 6px rgba(0, 0, 0, 0.2);
}

.footer-content {
    display: grid;
    grid-template-columns: 1fr 1fr 1fr;
    gap: 3rem;
    margin-bottom: 3rem;
}

.footer-links ul {
    margin-top: 1rem;
}

.footer-links li {
    margin-bottom: 0.5rem;
}

.newsletter-form {
    display: flex;
    margin-top: 1rem;
}

.newsletter-form input {
    flex: 1;
    padding: 0.8rem;
    border: 1px solid #ddd;
    border-radius: 30px 0 0 30px;
    outline: none;
    font-size: 1rem;
}

body.dark-mode .newsletter-form input {
    background-color: var(--background-dark);
    color: var(--text-dark);
    border-color: #444;
}

.newsletter-form button {
    border-radius: 0 30px 30px 0;
}

.footer-bottom {
    text-align: center;
    padding-top: 2rem;
    border-top: 1px solid #eee;
}

body.dark-mode .footer-bottom {
    border-color: #333;
}

/* Responsive Design */
@media (max-width: 1024px) {
    h1 {
        font-size: 2.5rem;
    }
    
    h2 {
        font-size: 2rem;
    }
    
    .content-grid,
    .example-grid {
        grid-template-columns: 1fr;
        gap: 2rem;
    }
    
    .footer-content {
        grid-template-columns: 1fr;
        gap: 2rem;
    }
}

@media (max-width: 768px) {
    header {
        flex-direction: column;
        gap: 1rem;
    }
    
    nav ul {
        gap: 1rem;
        flex-wrap: wrap;
        justify-content: center;
    }
    
    .hero {
        flex-direction: column;
        text-align: center;
        padding: 5rem 5%;
    }
    
    .hero-content {
        margin-bottom: 3rem;
    }
    
    .cta-buttons {
        justify-content: center;
    }
    
    .challenge-options {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 480px) {
    h1 {
        font-size: 2rem;
    }
    
    h2 {
        font-size: 1.8rem;
    }
    
    .content-section {
        padding: 3rem 5%;
    }
    
    .ai-example-tabs {
        flex-wrap: wrap;
    }
    
    .newsletter-form {
        flex-direction: column;
    }
    
    .newsletter-form input,
    .newsletter-form button {
        width: 100%;
        border-radius: 30px;
        margin-bottom: 1rem;
    }
}