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

:root {
    --color-primary: #635bff;
    --color-primary-hover: #5a54e5;
    --color-success: #00d924;
    --color-warning: #ffcf00;
    --color-error: #e25950;
    --color-text: #1a1f36;
    --color-text-secondary: #677080;
    --color-text-tertiary: #8898aa;
    --color-background: #ffffff;
    --color-background-secondary: #f7f9fa;
    --color-background-tertiary: #6772e5;
    --color-border: #e6ebf1;
    --color-border-light: #f0f4f7;
    --color-code-bg: #f8f9fa;
    --color-sidebar: #f7f9fa;
    --sidebar-width: 280px;
    --header-height: 72px;
    --border-radius: 8px;
    --shadow: 0 2px 8px rgba(0, 0, 0, 0.08);
    --shadow-hover: 0 4px 16px rgba(0, 0, 0, 0.12);
}

body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    line-height: 1.6;
    color: var(--color-text);
    background-color: var(--color-background);
    overflow-x: hidden;
}

/* Header */
.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    height: var(--header-height);
    background: var(--color-background);
    border-bottom: 1px solid var(--color-border);
    z-index: 1000;
    display: flex;
    align-items: center;
    padding: 0 2rem;
}

.header-content {
    display: flex;
    align-items: center;
    justify-content: space-between;
    width: 100%;
    max-width: 1400px;
    margin: 0 auto;
}

.logo {
    display: flex;
    align-items: center;
    gap: 12px;
    text-decoration: none;
    color: var(--color-text);
}

.logo-icon {
    width: 32px;
    height: 32px;
    background: linear-gradient(135deg, var(--color-primary) 0%, #7c3aed 100%);
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-weight: 600;
    font-size: 16px;
}

.logo-text {
    font-size: 20px;
    font-weight: 600;
}

.header-nav {
    display: flex;
    align-items: center;
    gap: 2rem;
}

.nav-link {
    color: var(--color-text-secondary);
    text-decoration: none;
    font-size: 14px;
    font-weight: 500;
    transition: color 0.2s;
}

.nav-link:hover, .nav-link.active {
    color: var(--color-primary);
}

.cta-button {
    background: var(--color-primary);
    color: white;
    padding: 8px 16px;
    border-radius: 6px;
    text-decoration: none;
    font-size: 14px;
    font-weight: 500;
    transition: all 0.2s;
}

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

/* Main Layout */
.main-container {
    display: flex;
    margin-top: var(--header-height);
    min-height: calc(100vh - var(--header-height));
}

/* Sidebar */
.sidebar {
    width: var(--sidebar-width);
    background: var(--color-sidebar);
    border-right: 1px solid var(--color-border);
    overflow-y: auto;
    position: fixed;
    top: var(--header-height);
    bottom: 0;
    left: 0;
    z-index: 100;
}

.sidebar-content {
    padding: 2rem 0;
}

.nav-section {
    margin-bottom: 2rem;
}

.nav-section-title {
    font-size: 12px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    color: var(--color-text-tertiary);
    margin-bottom: 1rem;
    padding: 0 1.5rem;
}

.nav-item {
    display: block;
    padding: 8px 1.5rem;
    color: var(--color-text-secondary);
    text-decoration: none;
    font-size: 14px;
    font-weight: 500;
    transition: all 0.2s;
    border-left: 3px solid transparent;
}

.nav-item:hover {
    color: var(--color-primary);
    background: rgba(99, 91, 255, 0.05);
}

.nav-item.active {
    color: var(--color-primary);
    background: rgba(99, 91, 255, 0.1);
    border-left-color: var(--color-primary);
}

.nav-item.sub-item {
    padding-left: 2.5rem;
    font-size: 13px;
    font-weight: 400;
}

/* Content Area */
.content {
    flex: 1;
    margin-left: var(--sidebar-width);
    padding: 3rem;
    max-width: calc(100vw - var(--sidebar-width));
}

.content-wrapper {
    max-width: 800px;
    margin: 0 auto;
}

/* Page Header */
.page-header {
    margin-bottom: 3rem;
    padding-bottom: 2rem;
    border-bottom: 1px solid var(--color-border);
}

.page-header h1 {
    font-size: 42px;
    font-weight: 700;
    margin-bottom: 1rem;
    color: var(--color-text);
}

.page-header p {
    font-size: 18px;
    color: var(--color-text-secondary);
    max-width: 600px;
}

/* API Sections */
.api-section {
    margin-bottom: 4rem;
}

.api-section h2 {
    font-size: 32px;
    font-weight: 600;
    margin-bottom: 1rem;
    color: var(--color-text);
    scroll-margin-top: 100px;
}

.api-section h3 {
    font-size: 24px;
    font-weight: 600;
    margin: 2rem 0 1rem 0;
    color: var(--color-text);
    scroll-margin-top: 100px;
}

.api-section h4 {
    font-size: 18px;
    font-weight: 600;
    margin: 1.5rem 0 0.75rem 0;
    color: var(--color-text);
}

.api-section p {
    margin-bottom: 1rem;
    color: var(--color-text-secondary);
    line-height: 1.7;
}

.api-section ul, .api-section ol {
    margin: 1rem 0;
    padding-left: 2rem;
    color: var(--color-text-secondary);
}

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

/* Endpoint Sections */
.endpoint-section {
    background: var(--color-background);
    border: 1px solid var(--color-border);
    border-radius: var(--border-radius);
    margin: 2rem 0;
    overflow: hidden;
}

.endpoint-header {
    background: var(--color-background-secondary);
    padding: 1rem 1.5rem;
    border-bottom: 1px solid var(--color-border);
    display: flex;
    align-items: center;
    gap: 1rem;
}

.method {
    padding: 4px 8px;
    border-radius: 4px;
    font-size: 12px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.method-post {
    background: var(--color-success);
    color: white;
}

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

.endpoint-path {
    font-family: 'SF Mono', Monaco, 'Cascadia Code', 'Roboto Mono', monospace;
    font-size: 16px;
    font-weight: 500;
    color: var(--color-text);
}

.endpoint-note {
    font-size: 12px;
    color: var(--color-text-tertiary);
    font-style: italic;
}

/* Tabs */
.tab-container {
    margin-top: 0;
}

.tab-buttons {
    display: flex;
    background: var(--color-background-secondary);
    border-bottom: 1px solid var(--color-border);
}

.tab-button {
    padding: 0.75rem 1.5rem;
    background: none;
    border: none;
    font-size: 14px;
    font-weight: 500;
    color: var(--color-text-secondary);
    cursor: pointer;
    transition: all 0.2s;
    border-bottom: 2px solid transparent;
}

.tab-button:hover {
    color: var(--color-primary);
    background: rgba(99, 91, 255, 0.05);
}

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

.tab-content {
    padding: 1.5rem;
}

.tab-pane {
    display: none;
}

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

/* Parameters Table */
.params-table {
    width: 100%;
    border-collapse: collapse;
    margin: 1rem 0;
    font-size: 14px;
}

.params-table th,
.params-table td {
    padding: 0.75rem;
    text-align: left;
    border-bottom: 1px solid var(--color-border);
}

.params-table th {
    background: var(--color-background-secondary);
    font-weight: 600;
    color: var(--color-text);
    font-size: 12px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.params-table tbody tr:hover {
    background: var(--color-background-secondary);
}

.params-table code {
    background: var(--color-code-bg);
    padding: 2px 4px;
    border-radius: 3px;
    font-family: 'SF Mono', Monaco, 'Cascadia Code', 'Roboto Mono', monospace;
    font-size: 12px;
}

.required {
    background: rgba(226, 89, 80, 0.1);
    color: var(--color-error);
    padding: 2px 6px;
    border-radius: 12px;
    font-size: 11px;
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

/* Code Examples */
.code-example {
    background: var(--color-code-bg);
    border: 1px solid var(--color-border);
    border-radius: var(--border-radius);
    overflow: hidden;
    margin: 1.5rem 0;
}

.code-header {
    background: var(--color-background-secondary);
    padding: 0.75rem 1rem;
    border-bottom: 1px solid var(--color-border);
    font-size: 12px;
    font-weight: 500;
    color: var(--color-text-secondary);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.code-content {
    padding: 1rem;
    overflow-x: auto;
}

.code-content pre {
    margin: 0;
    background: none;
    padding: 0;
    font-family: 'SF Mono', Monaco, 'Cascadia Code', 'Roboto Mono', monospace;
    font-size: 13px;
    line-height: 1.5;
}

.copy-button {
    background: none;
    border: 1px solid var(--color-border);
    border-radius: 4px;
    padding: 4px 8px;
    font-size: 11px;
    color: var(--color-text-secondary);
    cursor: pointer;
    transition: all 0.2s;
}

.copy-button:hover {
    border-color: var(--color-primary);
    color: var(--color-primary);
}

/* Info Boxes */
.info-box {
    display: flex;
    align-items: flex-start;
    gap: 1rem;
    padding: 1rem 1.5rem;
    border-radius: var(--border-radius);
    margin: 1.5rem 0;
    font-size: 14px;
}

.info-box-warning {
    background: rgba(255, 207, 0, 0.1);
    border: 1px solid rgba(255, 207, 0, 0.3);
    color: #b8860b;
}

.info-box-info {
    background: rgba(99, 91, 255, 0.1);
    border: 1px solid rgba(99, 91, 255, 0.3);
    color: var(--color-primary);
}

.info-box-error {
    background: rgba(226, 89, 80, 0.1);
    border: 1px solid rgba(226, 89, 80, 0.3);
    color: var(--color-error);
}

.info-icon {
    font-size: 16px;
    flex-shrink: 0;
    margin-top: 2px;
}

.info-content {
    flex: 1;
}

.info-content strong {
    color: currentColor;
}

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

.environment-card {
    background: var(--color-background);
    border: 1px solid var(--color-border);
    border-radius: var(--border-radius);
    padding: 1.5rem;
    transition: all 0.2s;
}

.environment-card:hover {
    border-color: var(--color-primary);
    box-shadow: var(--shadow);
}

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

.env-header h3 {
    margin: 0;
    font-size: 18px;
}

.env-content p {
    margin-bottom: 0.75rem;
}

.env-content code {
    background: var(--color-code-bg);
    padding: 2px 6px;
    border-radius: 3px;
    font-family: 'SF Mono', Monaco, 'Cascadia Code', 'Roboto Mono', monospace;
    font-size: 12px;
}

/* Status Badges */
.status-badge {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    padding: 4px 8px;
    border-radius: 12px;
    font-size: 11px;
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.status-stable {
    background: rgba(0, 217, 36, 0.1);
    color: var(--color-success);
}

.status-beta {
    background: rgba(255, 207, 0, 0.1);
    color: var(--color-warning);
}

.status-deprecated {
    background: rgba(226, 89, 80, 0.1);
    color: var(--color-error);
}

/* Authentication Steps */
.auth-steps {
    background: var(--color-background-secondary);
    border-radius: var(--border-radius);
    padding: 1.5rem;
    margin: 1.5rem 0;
}

.auth-steps li {
    margin-bottom: 0.75rem;
    color: var(--color-text-secondary);
}

.auth-steps strong {
    color: var(--color-text);
}

/* Parameter Sections */
.parameter-section {
    margin: 2rem 0;
}

.parameter-section h4 {
    margin-bottom: 1rem;
    color: var(--color-text);
}

/* Model Sections */
.model-section {
    margin: 3rem 0;
    padding: 2rem 0;
    border-top: 1px solid var(--color-border);
}

.model-section:first-child {
    border-top: none;
    padding-top: 0;
}

/* Mobile Menu */
.mobile-menu-toggle {
    display: none;
    background: none;
    border: none;
    font-size: 20px;
    cursor: pointer;
    color: var(--color-text);
    padding: 8px;
}

/* Mobile Responsive */
@media (max-width: 768px) {
    .mobile-menu-toggle {
        display: block;
    }

    .header-nav {
        display: none;
    }

    .sidebar {
        transform: translateX(-100%);
        transition: transform 0.3s;
        z-index: 200;
    }

    .sidebar.open {
        transform: translateX(0);
    }

    .content {
        margin-left: 0;
        padding: 2rem 1rem;
        max-width: 100vw;
    }

    .page-header h1 {
        font-size: 32px;
    }

    .api-section h2 {
        font-size: 28px;
    }

    .environment-cards {
        grid-template-columns: 1fr;
    }

    .endpoint-header {
        flex-direction: column;
        align-items: flex-start;
        gap: 0.5rem;
    }

    .tab-buttons {
        flex-wrap: wrap;
    }

    .params-table {
        font-size: 12px;
    }

    .params-table th,
    .params-table td {
        padding: 0.5rem;
    }
}

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

.animate-in {
    animation: fadeInUp 0.6s ease-out;
}

/* Scroll behavior */
html {
    scroll-behavior: smooth;
}

/* Focus styles */
.nav-item:focus,
.tab-button:focus,
.copy-button:focus {
    outline: 2px solid var(--color-primary);
    outline-offset: 2px;
}