/* K1 Programming Language Website Styles */

:root {
    --primary-color: #e74c3c;
    --primary-dark: #c0392b;
    --primary-light: #f5b7b1;
    --accent-color: #3498db;
    --accent-dark: #2980b9;
    --accent-light: #a9cce3;
    --text-color: #2c3e50;
    --text-light: #7f8c8d;
    --bg-color: #ffffff;
    --card-bg: #f8f9fa;
    --border-color: #ecf0f1;
    --shadow-color: rgba(0, 0, 0, 0.1);
    --code-bg: #2c3e50;
    --code-text: #ecf0f1;
    --font-main: 'Inter', sans-serif;
    --font-code: 'JetBrains Mono', monospace;
}

[data-theme="dark"] {
    --primary-color: #ff6b6b;
    --primary-dark: #e74c3c;
    --primary-light: #ff8585;
    --accent-color: #4dabf7;
    --accent-dark: #3498db;
    --accent-light: #74c0fc;
    --text-color: #f8f9fa;
    --text-light: #ced4da;
    --bg-color: #121212;
    --card-bg: #1e1e1e;
    --border-color: #343a40;
    --shadow-color: rgba(0, 0, 0, 0.3);
    --code-bg: #1a2530;
    --code-text: #f8f9fa;
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-main);
    line-height: 1.6;
    color: var(--text-color);
    background-color: var(--bg-color);
    transition: background-color 0.3s ease, color 0.3s ease;
}

a {
    text-decoration: none;
    color: var(--accent-color);
    transition: color 0.3s ease;
}

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

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

h1 {
    font-size: 3.5rem;
}

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

h3 {
    font-size: 1.5rem;
}

p {
    margin-bottom: 1rem;
}

code, pre {
    font-family: var(--font-code);
}

section {
    padding: 5rem 2rem;
}

.section-intro {
    text-align: center;
    font-size: 1.25rem;
    color: var(--text-light);
    max-width: 800px;
    margin: 0 auto 3rem;
}

.btn {
    display: inline-block;
    padding: 0.75rem 1.5rem;
    border-radius: 0.25rem;
    font-weight: 500;
    text-decoration: none;
    transition: all 0.3s ease;
    cursor: pointer;
    text-align: center;
}

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

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

.secondary-btn {
    background-color: transparent;
    color: var(--text-color);
    border: 1px solid var(--border-color);
}

.secondary-btn:hover {
    background-color: var(--card-bg);
    transform: translateY(-2px);
}

.download-btn {
    background-color: var(--primary-color);
    color: white;
    padding: 0.5rem 1rem;
    border-radius: 0.25rem;
}

.download-btn:hover {
    background-color: var(--primary-dark);
}

/* Loading Overlay */
.loading-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: var(--bg-color);
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    z-index: 9999;
    transition: opacity 0.5s ease, visibility 0.5s ease;
}

.loading-spinner {
    width: 50px;
    height: 50px;
    border: 5px solid var(--border-color);
    border-top: 5px solid var(--primary-color);
    border-radius: 50%;
    animation: spin 1s linear infinite;
    margin-bottom: 1rem;
}

.loading-text {
    font-size: 1.25rem;
    color: var(--text-color);
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

.loading-overlay.hidden {
    opacity: 0;
    visibility: hidden;
}

/* Header and Navigation */
header {
    position: sticky;
    top: 0;
    background-color: var(--bg-color);
    box-shadow: 0 2px 10px var(--shadow-color);
    z-index: 100;
}

nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 2rem;
    max-width: 1400px;
    margin: 0 auto;
}

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

.logo a {
    font-size: 1.75rem;
    font-weight: 700;
    color: var(--primary-color);
    text-decoration: none;
}

.version {
    font-size: 0.875rem;
    color: var(--text-light);
    margin-left: 0.5rem;
    padding: 0.125rem 0.375rem;
    background-color: var(--card-bg);
    border-radius: 0.25rem;
}

.nav-links {
    display: flex;
    list-style: none;
}

.nav-links li {
    margin-left: 1.5rem;
}

.nav-links a {
    color: var(--text-color);
    font-weight: 500;
    transition: color 0.3s ease;
}

.nav-links a:hover {
    color: var(--primary-color);
}

.burger {
    display: none;
    cursor: pointer;
}

.burger div {
    width: 25px;
    height: 3px;
    background-color: var(--text-color);
    margin: 5px;
    transition: all 0.3s ease;
}

.theme-toggle {
    background: none;
    border: none;
    color: var(--text-color);
    font-size: 1.25rem;
    cursor: pointer;
    margin-left: 1.5rem;
    transition: color 0.3s ease;
}

.theme-toggle:hover {
    color: var(--primary-color);
}

/* Hero Section */
.hero {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 6rem 2rem;
    max-width: 1400px;
    margin: 0 auto;
    gap: 2rem;
}

.hero-content {
    flex: 1;
}

.hero-content h1 {
    margin-bottom: 1rem;
    background: linear-gradient(135deg, var(--primary-color), var(--accent-color));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    color: transparent;
}

.hero-content p {
    font-size: 1.25rem;
    margin-bottom: 2rem;
    color: var(--text-light);
}

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

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

/* Code Window */
.code-window {
    width: 100%;
    max-width: 600px;
    background-color: var(--code-bg);
    border-radius: 0.5rem;
    overflow: hidden;
    box-shadow: 0 10px 30px var(--shadow-color);
}

.code-header {
    background-color: var(--card-bg);
    padding: 0.75rem 1rem;
    display: flex;
    align-items: center;
}

.dot {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    margin-right: 6px;
}

.red { background-color: #ff5f56; }
.yellow { background-color: #ffbd2e; }
.green { background-color: #27c93f; }

.filename {
    margin-left: 1rem;
    font-size: 0.9rem;
    color: var(--text-color);
}

.code-body {
    padding: 1.5rem;
    overflow-x: auto;
}

.code-body pre {
    margin: 0;
    color: var(--code-text);
    font-size: 0.9rem;
    line-height: 1.5;
}

/* Features Section */
.features {
    background-color: var(--card-bg);
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    max-width: 1200px;
    margin: 0 auto;
}

.feature-card {
    background-color: var(--bg-color);
    border-radius: 0.5rem;
    padding: 2rem;
    box-shadow: 0 5px 15px var(--shadow-color);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.feature-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 25px var(--shadow-color);
}

.feature-icon {
    font-size: 2.5rem;
    color: var(--primary-color);
    margin-bottom: 1rem;
}

/* Getting Started Section */
.getting-started {
    max-width: 1200px;
    margin: 0 auto;
}

.steps-container {
    display: flex;
    flex-direction: column;
    gap: 2rem;
}

.step {
    display: flex;
    gap: 2rem;
    align-items: flex-start;
}

.step-number {
    background-color: var(--primary-color);
    color: white;
    width: 40px;
    height: 40px;
    border-radius: 50%;
    display: flex;
    justify-content: center;
    align-items: center;
    font-weight: 700;
    font-size: 1.25rem;
    flex-shrink: 0;
}

.step-content {
    flex: 1;
}

.step-content h3 {
    margin-bottom: 0.5rem;
}

.step-content pre {
    margin-top: 1rem;
    background-color: var(--code-bg);
    border-radius: 0.25rem;
    padding: 1rem;
    overflow-x: auto;
}

.step-content pre code {
    color: var(--code-text);
}

/* Performance Section */
.performance {
    background-color: var(--card-bg);
    text-align: center;
}

.performance-metrics {
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: 2rem;
    margin-bottom: 3rem;
}

.metric-card {
    background-color: var(--bg-color);
    border-radius: 0.5rem;
    padding: 2rem;
    box-shadow: 0 5px 15px var(--shadow-color);
    width: 300px;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.metric-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 25px var(--shadow-color);
}

.metric-value {
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--primary-color);
    margin-bottom: 0.5rem;
}

.metric-label {
    font-size: 1.25rem;
    font-weight: 600;
    margin-bottom: 1rem;
}

.performance-chart {
    max-width: 800px;
    margin: 0 auto;
    background-color: var(--bg-color);
    border-radius: 0.5rem;
    padding: 2rem;
    box-shadow: 0 5px 15px var(--shadow-color);
}

.performance-chart h3 {
    margin-bottom: 1.5rem;
}

.chart-container {
    margin-bottom: 1.5rem;
}

.chart-bar {
    display: flex;
    align-items: center;
    margin-bottom: 1rem;
}

.bar-label {
    width: 100px;
    text-align: right;
    padding-right: 1rem;
    font-weight: 500;
}

.bar {
    height: 30px;
    background: linear-gradient(90deg, var(--primary-color), var(--primary-light));
    border-radius: 4px;
    display: flex;
    align-items: center;
    padding: 0 1rem;
    color: white;
    font-weight: 500;
    transition: width 1s ease;
}

.chart-note {
    font-size: 0.875rem;
    color: var(--text-light);
    font-style: italic;
}

/* Examples Section */
.examples {
    background-color: var(--bg-color);
}

.examples-container {
    max-width: 1000px;
    margin: 0 auto;
}

.example-tabs {
    display: flex;
    margin-bottom: 1rem;
    border-bottom: 1px solid var(--border-color);
    overflow-x: auto;
    white-space: nowrap;
}

.example-tab {
    padding: 0.75rem 1.5rem;
    cursor: pointer;
    color: var(--text-light);
    background: none;
    border: none;
    border-bottom: 2px solid transparent;
    transition: all 0.3s ease;
    font-family: var(--font-main);
    font-size: 1rem;
}

.example-tab.active {
    color: var(--primary-color);
    border-bottom-color: var(--primary-color);
}

.example-content .code-window {
    display: none;
    max-width: 100%;
}

.example-content .code-window.active {
    display: block;
}

/* Documentation Section */
.documentation {
    max-width: 1200px;
    margin: 0 auto;
}

.doc-categories {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    margin-bottom: 3rem;
}

.doc-category {
    background-color: var(--card-bg);
    border-radius: 0.5rem;
    padding: 1.5rem;
    box-shadow: 0 5px 15px var(--shadow-color);
}

.doc-category h3 {
    margin-bottom: 1rem;
    color: var(--primary-color);
}

.doc-category ul {
    list-style: none;
}

.doc-category li {
    margin-bottom: 0.5rem;
}

.doc-link {
    color: var(--text-color);
    transition: color 0.3s ease;
}

.doc-link:hover {
    color: var(--primary-color);
}

.doc-cta {
    text-align: center;
    margin-top: 3rem;
}

.doc-cta .btn {
    margin: 0 0.5rem;
}

/* Download Section */
.download {
    background-color: var(--card-bg);
    text-align: center;
}

.download-options {
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: 2rem;
    margin-bottom: 3rem;
}

.download-card {
    background-color: var(--bg-color);
    border-radius: 0.5rem;
    padding: 2rem;
    box-shadow: 0 5px 15px var(--shadow-color);
    width: 300px;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.download-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 25px var(--shadow-color);
}

.download-icon {
    font-size: 2.5rem;
    color: var(--primary-color);
    margin-bottom: 1rem;
}

.download-card h3 {
    margin-bottom: 0.5rem;
}

.download-card p {
    color: var(--text-light);
    margin-bottom: 1.5rem;
}

.source-download {
    max-width: 600px;
    margin: 0 auto;
    background-color: var(--bg-color);
    border-radius: 0.5rem;
    padding: 2rem;
    box-shadow: 0 5px 15px var(--shadow-color);
}

.source-download h3 {
    margin-bottom: 0.5rem;
}

.source-download p {
    color: var(--text-light);
    margin-bottom: 1.5rem;
}

.source-buttons {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 1rem;
}

.github-btn {
    background-color: #333;
    color: white;
}

.github-btn:hover {
    background-color: #000;
}

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

.source-btn:hover {
    background-color: var(--accent-dark);
}

/* Community Section */
.community {
    max-width: 1200px;
    margin: 0 auto;
    text-align: center;
}

.community-links {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 2rem;
}

.community-link {
    display: flex;
    flex-direction: column;
    align-items: center;
    color: var(--text-color);
    transition: transform 0.3s ease, color 0.3s ease;
}

.community-link i {
    font-size: 2.5rem;
    margin-bottom: 0.5rem;
}

.community-link:hover {
    transform: translateY(-5px);
    color: var(--primary-color);
}

/* Footer */
footer {
    background-color: var(--card-bg);
    padding: 3rem 2rem;
    margin-top: 5rem;
}

.footer-content {
    max-width: 1200px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: 1fr 2fr;
    gap: 2rem;
}

.footer-logo h2 {
    font-size: 2rem;
    text-align: left;
    margin-bottom: 0.5rem;
    color: var(--primary-color);
}

.footer-logo p {
    color: var(--text-light);
}

.footer-links {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
}

.footer-column h3 {
    font-size: 1.25rem;
    margin-bottom: 1rem;
    color: var(--text-color);
}

.footer-column ul {
    list-style: none;
}

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

.footer-column a {
    color: var(--text-light);
    transition: color 0.3s ease;
}

.footer-column a:hover {
    color: var(--primary-color);
}

.footer-bottom {
    max-width: 1200px;
    margin: 2rem auto 0;
    padding-top: 2rem;
    border-top: 1px solid var(--border-color);
    text-align: center;
    color: var(--text-light);
    font-size: 0.9rem;
}

.footer-bottom p {
    margin-bottom: 0.5rem;
}

/* Back to Top Button */
.back-to-top {
    position: fixed;
    bottom: 2rem;
    right: 2rem;
    width: 50px;
    height: 50px;
    background-color: var(--primary-color);
    color: white;
    border-radius: 50%;
    display: flex;
    justify-content: center;
    align-items: center;
    cursor: pointer;
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s ease;
    z-index: 99;
}

.back-to-top.visible {
    opacity: 1;
    visibility: visible;
}

.back-to-top:hover {
    background-color: var(--primary-dark);
    transform: translateY(-5px);
}

/* Responsive Styles */
@media screen and (max-width: 1024px) {
    .hero {
        flex-direction: column;
        text-align: center;
    }
    
    .hero-buttons {
        justify-content: center;
    }
    
    .footer-content {
        grid-template-columns: 1fr;
    }
    
    .footer-links {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media screen and (max-width: 768px) {
    h1 {
        font-size: 2.5rem;
    }
    
    h2 {
        font-size: 2rem;
    }
    
    .nav-links {
        position: absolute;
        right: 0;
        top: 70px;
        background-color: var(--bg-color);
        display: flex;
        flex-direction: column;
        align-items: center;
        width: 100%;
        transform: translateX(100%);
        transition: transform 0.5s ease-in;
        box-shadow: 0 5px 10px var(--shadow-color);
        z-index: 98;
    }
    
    .nav-links li {
        margin: 1rem 0;
    }
    
    .nav-active {
        transform: translateX(0%);
    }
    
    .burger {
        display: block;
    }
    
    .toggle .line1 {
        transform: rotate(-45deg) translate(-5px, 6px);
    }
    
    .toggle .line2 {
        opacity: 0;
    }
    
    .toggle .line3 {
        transform: rotate(45deg) translate(-5px, -6px);
    }
    
    .step {
        flex-direction: column;
        gap: 1rem;
    }
    
    .footer-links {
        grid-template-columns: 1fr;
    }
}

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

[data-aos="fade-up"] {
    opacity: 0;
    transform: translateY(20px);
    transition: opacity 0.6s ease, transform 0.6s ease;
}

[data-aos="fade-up"].aos-animate {
    opacity: 1;
    transform: translateY(0);
}

/* Delay animations */
[data-aos-delay="100"] { transition-delay: 0.1s; }
[data-aos-delay="200"] { transition-delay: 0.2s; }
[data-aos-delay="300"] { transition-delay: 0.3s; }
[data-aos-delay="400"] { transition-delay: 0.4s; }
[data-aos-delay="500"] { transition-delay: 0.5s; }