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

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    line-height: 1.6;
    color: #333;
    background-color: #ffffff;
}

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

/* Navigation */
.navbar {
    position: fixed;
    top: 0;
    width: 100%;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid #e5e7eb;
    z-index: 1000;
    transition: all 0.3s ease;
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 70px;
}

.nav-logo {
    display: flex;
    align-items: center;
    font-size: 1.5rem;
    font-weight: 700;
    color: #f7931a;
}

.nav-logo i {
    margin-right: 8px;
    font-size: 1.8rem;
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: 2rem;
    align-items: center;
}

.nav-menu a {
    text-decoration: none;
    color: #374151;
    font-weight: 500;
    transition: color 0.3s ease;
}

.nav-menu a:hover {
    color: #f7931a;
}

.cta-button {
    background: linear-gradient(135deg, #f7931a, #ff9500);
    color: white !important;
    padding: 10px 20px;
    border-radius: 25px;
    font-weight: 600;
    transition: all 0.3s ease;
}

.cta-button:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 25px rgba(247, 147, 26, 0.3);
}

.hamburger {
    display: none;
    flex-direction: column;
    cursor: pointer;
}

.hamburger span {
    width: 25px;
    height: 3px;
    background: #374151;
    margin: 3px 0;
    transition: 0.3s;
}

/* Hero Section */
.hero {
    padding: 120px 0 80px;
    background: linear-gradient(135deg, #f8fafc 0%, #e2e8f0 100%);
    min-height: 100vh;
    display: flex;
    align-items: center;
}

.hero-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
}

.hero-content h1 {
    font-size: 3.5rem;
    font-weight: 700;
    color: #1f2937;
    margin-bottom: 1rem;
    background: linear-gradient(135deg, #f7931a, #ff9500);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-content h2 {
    font-size: 1.5rem;
    font-weight: 600;
    color: #6b7280;
    margin-bottom: 1.5rem;
}

.hero-content p {
    font-size: 1.1rem;
    color: #4b5563;
    margin-bottom: 2rem;
    line-height: 1.7;
}

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

.btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 12px 24px;
    border-radius: 8px;
    text-decoration: none;
    font-weight: 600;
    transition: all 0.3s ease;
    border: none;
    cursor: pointer;
}

.btn-primary {
    background: linear-gradient(135deg, #f7931a, #ff9500);
    color: white;
    box-shadow: 0 4px 15px rgba(247, 147, 26, 0.3);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(247, 147, 26, 0.4);
}

.btn-secondary {
    background: white;
    color: #374151;
    border: 2px solid #e5e7eb;
}

.btn-secondary:hover {
    border-color: #f7931a;
    color: #f7931a;
}

.btn-outline {
    background: transparent;
    color: #f7931a;
    border: 2px solid #f7931a;
}

.btn-outline:hover {
    background: #f7931a;
    color: white;
}

/* Bot Preview */
.bot-preview {
    background: white;
    border-radius: 20px;
    padding: 2rem;
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.1);
    max-width: 400px;
    margin: 0 auto;
}

.chat-bubble {
    background: #f3f4f6;
    padding: 12px 16px;
    border-radius: 18px;
    margin-bottom: 12px;
    display: flex;
    align-items: center;
    gap: 8px;
    max-width: 80%;
}

.chat-bubble.user {
    background: #f7931a;
    color: white;
    margin-left: auto;
    max-width: 70%;
}

.chat-bubble i {
    color: #f7931a;
    font-size: 1.2rem;
}

.chat-bubble.user i {
    color: white;
}

/* Features Section */
.features {
    padding: 80px 0;
    background: white;
}

.section-title {
    text-align: center;
    font-size: 2.5rem;
    font-weight: 700;
    color: #1f2937;
    margin-bottom: 3rem;
}

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

.feature-card {
    background: white;
    padding: 2rem;
    border-radius: 16px;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
    transition: all 0.3s ease;
    border: 1px solid #f3f4f6;
}

.feature-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.12);
}

.feature-icon {
    width: 60px;
    height: 60px;
    background: linear-gradient(135deg, #f7931a, #ff9500);
    border-radius: 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 1.5rem;
}

.feature-icon i {
    font-size: 1.5rem;
    color: white;
}

.feature-card h3 {
    font-size: 1.25rem;
    font-weight: 600;
    color: #1f2937;
    margin-bottom: 1rem;
}

.feature-card p {
    color: #6b7280;
    line-height: 1.6;
}

/* Getting Started Section */
.getting-started {
    padding: 80px 0;
    background: #f8fafc;
}

.steps-container {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
}

.step {
    display: flex;
    align-items: flex-start;
    gap: 1.5rem;
    padding: 2rem;
    background: white;
    border-radius: 16px;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
}

.step-number {
    width: 50px;
    height: 50px;
    background: linear-gradient(135deg, #f7931a, #ff9500);
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: 1.2rem;
    flex-shrink: 0;
}

.step-content h3 {
    font-size: 1.25rem;
    font-weight: 600;
    color: #1f2937;
    margin-bottom: 0.5rem;
}

.step-content p {
    color: #6b7280;
    margin-bottom: 1rem;
}

.step-content code {
    background: #f3f4f6;
    padding: 4px 8px;
    border-radius: 4px;
    font-family: 'Monaco', 'Menlo', monospace;
    color: #f7931a;
}

/* Documentation Section */
.documentation {
    padding: 80px 0;
    background: white;
}

.docs-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
}

.doc-card {
    background: white;
    padding: 2rem;
    border-radius: 16px;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
    border: 1px solid #f3f4f6;
    transition: all 0.3s ease;
}

.doc-card:hover {
    transform: translateY(-3px);
    box-shadow: 0 15px 35px rgba(0, 0, 0, 0.12);
}

.doc-card h3 {
    font-size: 1.25rem;
    font-weight: 600;
    color: #1f2937;
    margin-bottom: 1rem;
    display: flex;
    align-items: center;
    gap: 8px;
}

.doc-card h3 i {
    color: #f7931a;
}

.doc-card p {
    color: #6b7280;
    margin-bottom: 1.5rem;
    line-height: 1.6;
}

.doc-link {
    color: #f7931a;
    text-decoration: none;
    font-weight: 600;
    transition: color 0.3s ease;
}

.doc-link:hover {
    color: #ff9500;
}

/* Contact Section */
.contact {
    padding: 80px 0;
    background: #f8fafc;
}

.contact-content {
    max-width: 600px;
    margin: 0 auto;
}

.contact-info {
    display: grid;
    gap: 2rem;
}

.contact-item {
    display: flex;
    align-items: center;
    gap: 1.5rem;
    padding: 1.5rem;
    background: white;
    border-radius: 12px;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.08);
}

.contact-item i {
    font-size: 1.5rem;
    color: #f7931a;
    width: 40px;
    text-align: center;
}

.contact-item h4 {
    font-size: 1.1rem;
    font-weight: 600;
    color: #1f2937;
    margin-bottom: 0.25rem;
}

.contact-item p {
    color: #6b7280;
}

.contact-item a {
    color: #f7931a;
    text-decoration: none;
    font-weight: 500;
}

.contact-item a:hover {
    color: #ff9500;
}

/* Footer */
.footer {
    background: #1f2937;
    color: white;
    padding: 60px 0 20px;
}

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

.footer-section h4 {
    font-size: 1.1rem;
    font-weight: 600;
    margin-bottom: 1rem;
    color: #f7931a;
}

.footer-logo {
    display: flex;
    align-items: center;
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: 1rem;
}

.footer-logo i {
    margin-right: 8px;
    color: #f7931a;
}

.footer-section p {
    color: #9ca3af;
    line-height: 1.6;
}

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

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

.footer-section ul li a {
    color: #9ca3af;
    text-decoration: none;
    transition: color 0.3s ease;
}

.footer-section ul li a:hover {
    color: #f7931a;
}

.footer-bottom {
    border-top: 1px solid #374151;
    padding-top: 2rem;
    text-align: center;
    color: #9ca3af;
}

/* Page Header */
.page-header {
    padding: 120px 0 60px;
    background: linear-gradient(135deg, #f7931a, #ff9500);
    color: white;
    text-align: center;
}

.page-header h1 {
    font-size: 3rem;
    font-weight: 700;
    margin-bottom: 1rem;
}

.page-header p {
    font-size: 1.2rem;
    opacity: 0.9;
}

/* Table of Contents */
.toc-section {
    padding: 40px 0;
    background: #f8fafc;
}

.toc-card {
    background: white;
    padding: 2rem;
    border-radius: 16px;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
    max-width: 600px;
    margin: 0 auto;
}

.toc-card h2 {
    color: #1f2937;
    margin-bottom: 1.5rem;
    text-align: center;
}

.toc-list {
    list-style: none;
    display: grid;
    gap: 0.5rem;
}

.toc-list a {
    color: #374151;
    text-decoration: none;
    padding: 0.5rem 1rem;
    border-radius: 8px;
    transition: all 0.3s ease;
    display: block;
}

.toc-list a:hover {
    background: #f3f4f6;
    color: #f7931a;
}

/* Guide Sections */
.guide-section {
    padding: 60px 0;
    border-bottom: 1px solid #e5e7eb;
}

.guide-section:last-child {
    border-bottom: none;
}

.guide-section h2 {
    font-size: 2.5rem;
    font-weight: 700;
    color: #1f2937;
    margin-bottom: 2rem;
    text-align: center;
}

.guide-content h3 {
    font-size: 1.5rem;
    font-weight: 600;
    color: #374151;
    margin-bottom: 1rem;
    margin-top: 2rem;
}

.guide-content p {
    color: #6b7280;
    line-height: 1.7;
    margin-bottom: 1.5rem;
}

.guide-content ul, .guide-content ol {
    color: #6b7280;
    margin-bottom: 1.5rem;
    padding-left: 1.5rem;
}

.guide-content li {
    margin-bottom: 0.5rem;
}

/* Commands Grid */
.commands-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 1.5rem;
    margin: 2rem 0;
}

.command-card {
    background: white;
    padding: 1.5rem;
    border-radius: 12px;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.08);
    border: 1px solid #f3f4f6;
    transition: all 0.3s ease;
}

.command-card:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.12);
}

.command-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1rem;
}

.command-header code {
    background: #f7931a;
    color: white;
    padding: 0.5rem 1rem;
    border-radius: 6px;
    font-weight: 600;
    font-size: 0.9rem;
}

.command-type {
    background: #e5e7eb;
    color: #374151;
    padding: 0.25rem 0.75rem;
    border-radius: 20px;
    font-size: 0.8rem;
    font-weight: 500;
}

.command-example {
    margin-top: 1rem;
    padding-top: 1rem;
    border-top: 1px solid #f3f4f6;
}

/* Feature Lists */
.feature-list {
    display: grid;
    gap: 1.5rem;
    margin: 2rem 0;
}

.feature-item {
    display: flex;
    align-items: flex-start;
    gap: 1rem;
    padding: 1.5rem;
    background: #f8fafc;
    border-radius: 12px;
}

.feature-item i {
    color: #f7931a;
    font-size: 1.5rem;
    margin-top: 0.25rem;
}

.feature-item h4 {
    color: #1f2937;
    font-weight: 600;
    margin-bottom: 0.5rem;
}

.feature-item p {
    color: #6b7280;
    margin: 0;
}

/* Tip and Warning Boxes */
.tip-box, .warning-box {
    display: flex;
    align-items: flex-start;
    gap: 1rem;
    padding: 1.5rem;
    border-radius: 12px;
    margin: 2rem 0;
}

.tip-box {
    background: #ecfdf5;
    border: 1px solid #10b981;
}

.tip-box i {
    color: #10b981;
    font-size: 1.5rem;
    margin-top: 0.25rem;
}

.warning-box {
    background: #fef3c7;
    border: 1px solid #f59e0b;
}

.warning-box i {
    color: #f59e0b;
    font-size: 1.5rem;
    margin-top: 0.25rem;
}

.tip-box h4, .warning-box h4 {
    color: #1f2937;
    font-weight: 600;
    margin-bottom: 0.5rem;
}

.tip-box p, .warning-box p {
    color: #374151;
    margin: 0;
}

/* Calculator Examples */
.calculator-examples, .ai-examples {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 1.5rem;
    margin: 2rem 0;
}

.example-card {
    background: white;
    padding: 1.5rem;
    border-radius: 12px;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.08);
    border: 1px solid #f3f4f6;
}

.example-card h4 {
    color: #1f2937;
    font-weight: 600;
    margin-bottom: 1rem;
}

.example-card code {
    background: #f3f4f6;
    color: #f7931a;
    padding: 0.5rem 1rem;
    border-radius: 6px;
    font-family: 'Monaco', 'Menlo', monospace;
    display: block;
    margin: 1rem 0;
}

.example-card p {
    color: #6b7280;
    margin: 0;
}

/* Language Options */
.language-options {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 1.5rem;
    margin: 2rem 0;
}

.language-card {
    background: white;
    padding: 2rem;
    border-radius: 12px;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.08);
    border: 1px solid #f3f4f6;
    text-align: center;
}

.language-card h4 {
    color: #1f2937;
    font-weight: 600;
    margin-bottom: 1rem;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
}

.language-card p {
    color: #6b7280;
    margin-bottom: 1.5rem;
}

.language-card code {
    background: #f7931a;
    color: white;
    padding: 0.5rem 1rem;
    border-radius: 6px;
    font-weight: 600;
}

/* Troubleshooting Grid */
.troubleshooting-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 1.5rem;
    margin: 2rem 0;
}

.issue-card {
    background: white;
    padding: 1.5rem;
    border-radius: 12px;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.08);
    border: 1px solid #f3f4f6;
}

.issue-card h4 {
    color: #1f2937;
    font-weight: 600;
    margin-bottom: 1rem;
}

.issue-card p {
    color: #6b7280;
    margin: 0;
}

/* Developer Guide Specific Styles */
.architecture-diagram {
    display: grid;
    gap: 1.5rem;
    margin: 2rem 0;
}

.arch-layer {
    background: white;
    padding: 1.5rem;
    border-radius: 12px;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.08);
    border-left: 4px solid #f7931a;
}

.arch-layer h4 {
    color: #1f2937;
    font-weight: 600;
    margin-bottom: 1rem;
}

.arch-layer ul {
    list-style: none;
    padding: 0;
}

.arch-layer li {
    padding: 0.5rem 0;
    border-bottom: 1px solid #f3f4f6;
}

.arch-layer li:last-child {
    border-bottom: none;
}

.tech-stack {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 1.5rem;
    margin: 2rem 0;
}

.tech-item {
    display: flex;
    align-items: center;
    gap: 1rem;
    padding: 1.5rem;
    background: white;
    border-radius: 12px;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.08);
    border: 1px solid #f3f4f6;
}

.tech-item i {
    font-size: 2rem;
    color: #f7931a;
}

.tech-item h4 {
    color: #1f2937;
    font-weight: 600;
    margin-bottom: 0.5rem;
}

.tech-item p {
    color: #6b7280;
    margin: 0;
}

.setup-steps {
    display: grid;
    gap: 1.5rem;
    margin: 2rem 0;
}

.setup-step {
    background: white;
    padding: 1.5rem;
    border-radius: 12px;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.08);
    border: 1px solid #f3f4f6;
}

.setup-step h4 {
    color: #1f2937;
    font-weight: 600;
    margin-bottom: 1rem;
}

.setup-step code {
    background: #f3f4f6;
    color: #f7931a;
    padding: 1rem;
    border-radius: 8px;
    font-family: 'Monaco', 'Menlo', monospace;
    display: block;
    margin-top: 1rem;
    white-space: pre-wrap;
}

.structure-tree {
    background: white;
    padding: 2rem;
    border-radius: 12px;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.08);
    border: 1px solid #f3f4f6;
    margin: 2rem 0;
    overflow-x: auto;
}

.structure-tree pre {
    margin: 0;
    font-family: 'Monaco', 'Menlo', monospace;
    font-size: 0.9rem;
    line-height: 1.5;
}

.structure-tree code {
    color: #374151;
}

.component-card {
    background: white;
    padding: 1.5rem;
    border-radius: 12px;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.08);
    border: 1px solid #f3f4f6;
    margin: 2rem 0;
}

.component-card h4 {
    color: #1f2937;
    font-weight: 600;
    margin-bottom: 1rem;
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 1.5rem;
    margin: 2rem 0;
}

.service-card {
    background: white;
    padding: 1.5rem;
    border-radius: 12px;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.08);
    border: 1px solid #f3f4f6;
}

.service-card h4 {
    color: #1f2937;
    font-weight: 600;
    margin-bottom: 1rem;
}

.service-card p {
    color: #6b7280;
    margin-bottom: 1rem;
}

.service-card code {
    background: #f7931a;
    color: white;
    padding: 0.5rem 1rem;
    border-radius: 6px;
    font-size: 0.9rem;
}

.schema-table {
    background: white;
    padding: 1.5rem;
    border-radius: 12px;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.08);
    border: 1px solid #f3f4f6;
    margin: 2rem 0;
}

.schema-table h4 {
    color: #1f2937;
    font-weight: 600;
    margin-bottom: 1rem;
}

.schema-table pre {
    background: #f8fafc;
    padding: 1rem;
    border-radius: 8px;
    overflow-x: auto;
    margin: 0;
}

.schema-table code {
    font-family: 'Monaco', 'Menlo', monospace;
    font-size: 0.9rem;
    color: #374151;
}

.api-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 1.5rem;
    margin: 2rem 0;
}

.api-card {
    background: white;
    padding: 1.5rem;
    border-radius: 12px;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.08);
    border: 1px solid #f3f4f6;
}

.api-card h4 {
    color: #1f2937;
    font-weight: 600;
    margin-bottom: 1rem;
}

.api-card p {
    color: #6b7280;
    margin-bottom: 1rem;
}

.api-card ul {
    list-style: none;
    padding: 0;
}

.api-card li {
    padding: 0.5rem 0;
    border-bottom: 1px solid #f3f4f6;
    color: #6b7280;
}

.api-card li:last-child {
    border-bottom: none;
}

.test-categories {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 1.5rem;
    margin: 2rem 0;
}

.test-category {
    background: white;
    padding: 1.5rem;
    border-radius: 12px;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.08);
    border: 1px solid #f3f4f6;
    text-align: center;
}

.test-category h4 {
    color: #1f2937;
    font-weight: 600;
    margin-bottom: 1rem;
}

.test-category p {
    color: #6b7280;
    margin-bottom: 1rem;
}

.test-category code {
    background: #f7931a;
    color: white;
    padding: 0.5rem 1rem;
    border-radius: 6px;
    font-size: 0.9rem;
}

.test-commands {
    display: grid;
    gap: 1rem;
    margin: 2rem 0;
}

.deployment-options {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 1.5rem;
    margin: 2rem 0;
}

.deployment-option {
    background: white;
    padding: 1.5rem;
    border-radius: 12px;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.08);
    border: 1px solid #f3f4f6;
    text-align: center;
}

.deployment-option h4 {
    color: #1f2937;
    font-weight: 600;
    margin-bottom: 1rem;
}

.deployment-option p {
    color: #6b7280;
    margin-bottom: 1rem;
}

.deployment-option code {
    background: #f7931a;
    color: white;
    padding: 0.5rem 1rem;
    border-radius: 6px;
    font-size: 0.9rem;
}

.env-vars {
    display: grid;
    gap: 1rem;
    margin: 2rem 0;
}

.env-var {
    background: white;
    padding: 1.5rem;
    border-radius: 12px;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.08);
    border: 1px solid #f3f4f6;
}

.env-var code {
    background: #f7931a;
    color: white;
    padding: 0.5rem 1rem;
    border-radius: 6px;
    font-size: 0.9rem;
    margin-bottom: 0.5rem;
    display: inline-block;
}

.env-var p {
    color: #6b7280;
    margin: 0;
}

.contribution-steps {
    display: grid;
    gap: 1.5rem;
    margin: 2rem 0;
}

.contribution-step {
    background: white;
    padding: 1.5rem;
    border-radius: 12px;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.08);
    border: 1px solid #f3f4f6;
}

.contribution-step h4 {
    color: #1f2937;
    font-weight: 600;
    margin-bottom: 1rem;
}

.contribution-step p {
    color: #6b7280;
    margin-bottom: 1rem;
}

.contribution-step code {
    background: #f7931a;
    color: white;
    padding: 0.5rem 1rem;
    border-radius: 6px;
    font-size: 0.9rem;
}

.contribution-areas {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 1.5rem;
    margin: 2rem 0;
}

.area-card {
    background: white;
    padding: 1.5rem;
    border-radius: 12px;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.08);
    border: 1px solid #f3f4f6;
}

.area-card h4 {
    color: #1f2937;
    font-weight: 600;
    margin-bottom: 1rem;
}

.area-card ul {
    list-style: none;
    padding: 0;
}

.area-card li {
    padding: 0.5rem 0;
    border-bottom: 1px solid #f3f4f6;
    color: #6b7280;
}

.area-card li:last-child {
    border-bottom: none;
}

/* API Reference Specific Styles */
.api-overview {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 1.5rem;
    margin: 2rem 0;
}

.overview-card {
    background: white;
    padding: 1.5rem;
    border-radius: 12px;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.08);
    border: 1px solid #f3f4f6;
}

.overview-card h4 {
    color: #1f2937;
    font-weight: 600;
    margin-bottom: 1rem;
}

.overview-card code {
    background: #f7931a;
    color: white;
    padding: 0.5rem 1rem;
    border-radius: 6px;
    font-size: 0.9rem;
    margin-bottom: 1rem;
    display: block;
}

.overview-card p {
    color: #6b7280;
    margin: 0;
}

.response-example {
    background: white;
    padding: 1.5rem;
    border-radius: 12px;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.08);
    border: 1px solid #f3f4f6;
    margin: 2rem 0;
}

.response-example h4 {
    color: #1f2937;
    font-weight: 600;
    margin-bottom: 1rem;
}

.response-example pre {
    background: #f8fafc;
    padding: 1rem;
    border-radius: 8px;
    overflow-x: auto;
    margin: 0;
}

.response-example code {
    font-family: 'Monaco', 'Menlo', monospace;
    font-size: 0.9rem;
    color: #374151;
}

.api-endpoints {
    display: grid;
    gap: 2rem;
    margin: 2rem 0;
}

.endpoint-card {
    background: white;
    padding: 2rem;
    border-radius: 12px;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.08);
    border: 1px solid #f3f4f6;
}

.endpoint-header {
    display: flex;
    align-items: center;
    gap: 1rem;
    margin-bottom: 1rem;
}

.method {
    background: #f7931a;
    color: white;
    padding: 0.5rem 1rem;
    border-radius: 6px;
    font-weight: 600;
    font-size: 0.9rem;
}

.endpoint-header code {
    background: #f3f4f6;
    color: #f7931a;
    padding: 0.5rem 1rem;
    border-radius: 6px;
    font-family: 'Monaco', 'Menlo', monospace;
    font-weight: 600;
}

.endpoint-card h4 {
    color: #1f2937;
    font-weight: 600;
    margin-bottom: 1rem;
}

.endpoint-card p {
    color: #6b7280;
    margin-bottom: 1.5rem;
}

.endpoint-card h5 {
    color: #374151;
    font-weight: 600;
    margin-bottom: 0.5rem;
    margin-top: 1.5rem;
}

.endpoint-card ul {
    list-style: none;
    padding: 0;
    margin-bottom: 1rem;
}

.endpoint-card li {
    padding: 0.5rem 0;
    border-bottom: 1px solid #f3f4f6;
    color: #6b7280;
}

.endpoint-card li:last-child {
    border-bottom: none;
}

.endpoint-card pre {
    background: #f8fafc;
    padding: 1rem;
    border-radius: 8px;
    overflow-x: auto;
    margin: 1rem 0;
}

.endpoint-card code {
    font-family: 'Monaco', 'Menlo', monospace;
    font-size: 0.9rem;
    color: #374151;
}

.webhook-card {
    background: white;
    padding: 2rem;
    border-radius: 12px;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.08);
    border: 1px solid #f3f4f6;
    margin: 2rem 0;
}

.webhook-card h4 {
    color: #1f2937;
    font-weight: 600;
    margin-bottom: 1rem;
}

.webhook-card p {
    color: #6b7280;
    margin-bottom: 1rem;
}

.webhook-card ul {
    list-style: none;
    padding: 0;
    margin-bottom: 1.5rem;
}

.webhook-card li {
    padding: 0.5rem 0;
    border-bottom: 1px solid #f3f4f6;
    color: #6b7280;
}

.webhook-card li:last-child {
    border-bottom: none;
}

.webhook-card h5 {
    color: #374151;
    font-weight: 600;
    margin-bottom: 0.5rem;
    margin-top: 1.5rem;
}

.rate-limits {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 1.5rem;
    margin: 2rem 0;
}

.limit-card {
    background: white;
    padding: 1.5rem;
    border-radius: 12px;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.08);
    border: 1px solid #f3f4f6;
    text-align: center;
}

.limit-card h4 {
    color: #1f2937;
    font-weight: 600;
    margin-bottom: 1rem;
}

.limit-card ul {
    list-style: none;
    padding: 0;
}

.limit-card li {
    padding: 0.5rem 0;
    border-bottom: 1px solid #f3f4f6;
    color: #6b7280;
}

.limit-card li:last-child {
    border-bottom: none;
}

.code-examples {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 1.5rem;
    margin: 2rem 0;
}

.code-examples .example-card {
    background: white;
    padding: 1.5rem;
    border-radius: 12px;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.08);
    border: 1px solid #f3f4f6;
}

.code-examples .example-card h4 {
    color: #1f2937;
    font-weight: 600;
    margin-bottom: 1rem;
}

.code-examples .example-card pre {
    background: #f8fafc;
    padding: 1rem;
    border-radius: 8px;
    overflow-x: auto;
    margin: 0;
}

.code-examples .example-card code {
    font-family: 'Monaco', 'Menlo', monospace;
    font-size: 0.9rem;
    color: #374151;
}

/* Responsive Design */
@media (max-width: 768px) {
    .nav-menu {
        display: none;
    }
    
    .hamburger {
        display: flex;
    }
    
    .hero-container {
        grid-template-columns: 1fr;
        text-align: center;
        gap: 2rem;
    }
    
    .hero-content h1 {
        font-size: 2.5rem;
    }
    
    .hero-buttons {
        justify-content: center;
    }
    
    .features-grid,
    .steps-container,
    .docs-grid,
    .commands-grid,
    .calculator-examples,
    .ai-examples,
    .language-options,
    .troubleshooting-grid,
    .api-overview,
    .tech-stack,
    .services-grid,
    .api-grid,
    .test-categories,
    .deployment-options,
    .contribution-areas,
    .rate-limits,
    .code-examples {
        grid-template-columns: 1fr;
    }
    
    .section-title,
    .guide-section h2 {
        font-size: 2rem;
    }
    
    .step {
        flex-direction: column;
        text-align: center;
    }
    
    .contact-item {
        flex-direction: column;
        text-align: center;
    }
    
    .page-header h1 {
        font-size: 2.5rem;
    }
    
    .feature-item,
    .tech-item {
        flex-direction: column;
        text-align: center;
    }
    
    .endpoint-header {
        flex-direction: column;
        align-items: flex-start;
        gap: 0.5rem;
    }
    
    .structure-tree {
        padding: 1rem;
        font-size: 0.8rem;
    }
    
    .setup-step code,
    .schema-table pre,
    .response-example pre,
    .endpoint-card pre,
    .webhook-card pre,
    .code-examples .example-card pre {
        font-size: 0.8rem;
        padding: 0.75rem;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 15px;
    }
    
    .hero-content h1 {
        font-size: 2rem;
    }
    
    .btn {
        padding: 10px 20px;
        font-size: 0.9rem;
    }
    
    .feature-card,
    .doc-card {
        padding: 1.5rem;
    }
}