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

:root {
    /* Stripe-inspired Color Palette */
    --color-primary: #635bff;
    --color-primary-hover: #0a2540;
    --color-bg-main: #ffffff;
    --color-bg-sidebar: #f6f9fc;
    --color-bg-code: #0a2540;
    --color-bg-code-light: #f6f9fc;
    --color-text-primary: #0a2540;
    --color-text-secondary: #425466;
    --color-text-tertiary: #8792a2;
    --color-border: #e3e8ee;
    --color-border-hover: #cbd2d9;
    --color-success: #00d924;
    --color-warning: #ff9500;
    --color-error: #df1b41;

    /* Typography */
    --font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    --font-size-xs: 0.75rem;
    --font-size-sm: 0.875rem;
    --font-size-base: 0.9375rem;
    --font-size-lg: 1.125rem;
    --font-size-xl: 1.5rem;
    --font-size-2xl: 2rem;
    --font-size-3xl: 2.5rem;

    /* Spacing */
    --spacing-xs: 0.25rem;
    --spacing-sm: 0.5rem;
    --spacing-md: 1rem;
    --spacing-lg: 1.5rem;
    --spacing-xl: 2rem;
    --spacing-2xl: 3rem;

    /* Layout */
    --sidebar-width: 280px;
    --sidebar-right-width: 240px;
    --content-max-width: 1400px;
}

body {
    font-family: var(--font-family);
    font-size: var(--font-size-base);
    line-height: 1.6;
    color: var(--color-text-primary);
    background: var(--color-bg-main);
    min-height: 100vh;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* Top Header */
.top-header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    height: 80px;
    background: var(--color-bg-sidebar);
    border-bottom: 1px solid var(--color-border);
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 var(--spacing-xl);
    z-index: 1000;
}

.header-left-group {
    display: flex;
    align-items: center;
    gap: 120px;
}

.header-content {
    display: flex;
    flex-direction: column;
}

.header-tabs {
    display: flex;
    align-items: flex-end;
    height: 100%;
    gap: var(--spacing-xs);
}

.header-tabs-right {
    display: flex;
    align-items: flex-end;
    height: 100%;
    gap: var(--spacing-xs);
}

.header-tab {
    background: none;
    border: none;
    padding: var(--spacing-md) var(--spacing-lg);
    font-size: var(--font-size-base);
    font-weight: 500;
    color: var(--color-text-secondary);
    cursor: pointer;
    border-bottom: 2px solid transparent;
    transition: all 0.2s ease;
    position: relative;
    bottom: -1px;
    outline: none;
}

.header-tab:hover {
    color: var(--color-text-primary);
}

.header-tab:focus {
    outline: none;
}

.header-tab.active {
    color: var(--color-primary);
    border-bottom-color: var(--color-primary);
    font-weight: 600;
}

/* Left Sidebar Navigation */
.sidebar-left {
    background: var(--color-bg-sidebar);
    border-right: 1px solid var(--color-border);
    padding: var(--spacing-xl) 0;
    position: fixed;
    top: 80px;
    left: 0;
    width: var(--sidebar-width);
    height: calc(100vh - 80px);
    overflow-y: auto;
    overflow-x: hidden;
    z-index: 100;
}

.sidebar-left::-webkit-scrollbar {
    width: 6px;
}

.sidebar-left::-webkit-scrollbar-track {
    background: transparent;
}

.sidebar-left::-webkit-scrollbar-thumb {
    background: var(--color-border);
    border-radius: 3px;
}

.sidebar-left::-webkit-scrollbar-thumb:hover {
    background: var(--color-border-hover);
}

.logo {
    font-size: var(--font-size-xl);
    font-weight: 700;
    color: var(--color-primary);
    letter-spacing: -0.02em;
    margin-bottom: 0.25rem;
}

.logo-subtitle {
    font-size: 1.125rem;
    font-weight: 800;
    color: #000000;
    letter-spacing: 0.15em;
    margin: 0;
    text-transform: uppercase;
}

.nav-section {
    margin-bottom: var(--spacing-lg);
}

.nav-section-title {
    font-size: var(--font-size-xs);
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--color-text-tertiary);
    padding: 0 var(--spacing-xl);
    margin-bottom: var(--spacing-sm);
}

.nav-list {
    list-style: none;
}

.nav-link {
    display: block;
    padding: var(--spacing-sm) var(--spacing-xl);
    color: var(--color-text-secondary);
    text-decoration: none;
    font-size: var(--font-size-sm);
    font-weight: 500;
    transition: all 0.15s ease;
    border-left: 2px solid transparent;
    outline: none;
}

.nav-link:hover {
    color: var(--color-text-primary);
    background: rgba(99, 91, 255, 0.04);
}

.nav-link:focus {
    outline: none;
}

.nav-link.active {
    color: var(--color-primary);
    background: rgba(99, 91, 255, 0.08);
    border-left-color: var(--color-primary);
}

/* Main Content Area */
.content-main {
    margin-left: var(--sidebar-width);
    margin-right: var(--sidebar-right-width);
    padding: var(--spacing-2xl);
    padding-top: calc(80px + var(--spacing-2xl));
    max-width: 900px;
    margin-left: calc(var(--sidebar-width) + var(--spacing-2xl));
    margin-right: calc(var(--sidebar-right-width) + var(--spacing-2xl));
}


article {
    margin-bottom: var(--spacing-2xl);
}

h1 {
    font-size: var(--font-size-3xl);
    font-weight: 700;
    color: var(--color-text-primary);
    margin-bottom: var(--spacing-md);
    letter-spacing: -0.03em;
    line-height: 1.2;
}

h2 {
    font-size: var(--font-size-2xl);
    font-weight: 700;
    color: var(--color-text-primary);
    margin-top: var(--spacing-2xl);
    margin-bottom: var(--spacing-lg);
    letter-spacing: -0.02em;
    line-height: 1.3;
    scroll-margin-top: var(--spacing-xl);
    position: relative;
}

h2[id] {
    cursor: pointer;
}

h2[id]:hover::after {
    content: '🔗';
    position: absolute;
    left: -2rem;
    font-size: 1rem;
    opacity: 0.6;
    transition: opacity 0.2s ease;
}

h3 {
    font-size: var(--font-size-xl);
    font-weight: 600;
    color: var(--color-text-primary);
    margin-top: var(--spacing-xl);
    margin-bottom: var(--spacing-md);
    letter-spacing: -0.01em;
    scroll-margin-top: var(--spacing-xl);
}

h3.hidden-subsection {
    position: absolute;
    width: 1px;
    height: 1px;
    margin: -1px;
    padding: 0;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
}

h4 {
    font-size: var(--font-size-lg);
    font-weight: 600;
    color: var(--color-text-primary);
    margin-top: var(--spacing-lg);
    margin-bottom: var(--spacing-sm);
}

.subtitle {
    font-size: var(--font-size-lg);
    color: var(--color-text-secondary);
    margin-bottom: var(--spacing-xl);
    line-height: 1.5;
}

p {
    margin-bottom: var(--spacing-md);
    color: var(--color-text-secondary);
    line-height: 1.7;
}

section {
    margin-bottom: var(--spacing-2xl);
    scroll-margin-top: var(--spacing-xl);
}

section ol {
    margin-left: 2rem !important;
    padding-left: 1.5rem !important;
}

section ol li {
    color: #425466 !important;
    margin-bottom: 0.5rem !important;
    line-height: 1.7 !important;
}

section ul {
    margin-left: 2rem !important;
    padding-left: 1.5rem !important;
}

section ul li {
    color: #425466 !important;
    margin-bottom: 0.5rem !important;
    line-height: 1.7 !important;
}

a {
    color: var(--color-primary);
    text-decoration: none;
    transition: color 0.15s ease;
}

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

code {
    font-family: 'Monaco', 'Consolas', 'Courier New', monospace;
    font-size: 0.875em;
    background: var(--color-bg-code-light);
    color: var(--color-primary);
    padding: 0.2em 0.4em;
    border-radius: 3px;
    font-weight: 500;
}

/* Banners */
.info-banner,
.warning-banner {
    padding: var(--spacing-lg);
    border-radius: 8px;
    margin: var(--spacing-xl) 0;
    border: 1px solid var(--color-border);
}

.info-banner {
    background: var(--color-bg-code-light);
    border-left: 4px solid var(--color-primary);
}

.warning-banner {
    background: #fff4ec;
    border-left: 4px solid var(--color-warning);
}

.info-banner p,
.warning-banner p {
    margin: 0;
    color: var(--color-text-primary);
}

.info-banner ul,
.warning-banner ul {
    margin: var(--spacing-sm) 0 0 var(--spacing-lg);
    color: var(--color-text-secondary);
}

.info-banner ul li,
.warning-banner ul li {
    margin-bottom: var(--spacing-xs);
}

/* Code Blocks */
.code-block-container {
    background: var(--color-bg-code);
    border-radius: 8px;
    margin: var(--spacing-lg) 0;
    overflow: hidden;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
}

.code-block-container.response {
    background: var(--color-bg-code);
    border: none;
}

.code-block-header {
    background: rgba(255, 255, 255, 0.05);
    color: rgba(255, 255, 255, 0.6);
    padding: var(--spacing-sm) var(--spacing-lg);
    font-size: var(--font-size-xs);
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.code-block-container.response .code-block-header {
    background: rgba(255, 255, 255, 0.05);
    color: rgba(255, 255, 255, 0.6);
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.code-block-tabs {
    display: flex;
    gap: 0;
    background: rgba(255, 255, 255, 0.03);
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.code-tab {
    background: transparent;
    border: none;
    color: rgba(255, 255, 255, 0.6);
    padding: var(--spacing-sm) var(--spacing-lg);
    font-size: var(--font-size-sm);
    font-weight: 500;
    cursor: pointer;
    transition: all 0.15s ease;
    border-bottom: 2px solid transparent;
    outline: none;
}

.code-tab:hover {
    color: rgba(255, 255, 255, 0.9);
    background: rgba(255, 255, 255, 0.05);
}

.code-tab:focus {
    outline: none;
}

.code-tab.active {
    color: #ffffff;
    border-bottom-color: var(--color-primary);
}

.code-block {
    display: none;
    overflow-x: auto;
}

.code-block.active {
    display: block;
}

.code-block pre {
    margin: 0;
    padding: var(--spacing-lg);
    overflow-x: auto;
}

.code-block code {
    background: transparent;
    color: #e3e8ee;
    padding: 0;
    font-size: var(--font-size-sm);
    line-height: 1.6;
    font-weight: 400;
}

.code-block-container.response .code-block code {
    color: #e3e8ee;
}

.code-caption {
    font-size: var(--font-size-sm);
    color: var(--color-text-tertiary);
    font-style: italic;
    margin-top: var(--spacing-sm);
}

/* Step List */
.step-list {
    margin: var(--spacing-xl) 0;
}

.step {
    display: flex;
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-xl);
    padding-bottom: var(--spacing-xl);
    border-bottom: 1px solid var(--color-border);
}

.step:last-child {
    border-bottom: none;
}

.step-number {
    flex-shrink: 0;
    width: 32px;
    height: 32px;
    border-radius: 50%;
    background: var(--color-primary);
    color: white;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 600;
    font-size: var(--font-size-sm);
}

.step-content {
    flex: 1;
}

.step-content h4 {
    margin-top: 0;
}

.step-content p {
    margin-bottom: var(--spacing-md);
}

/* Tables */
.param-table,
.api-endpoint {
    margin: var(--spacing-xl) 0;
}

table {
    width: 100%;
    border-collapse: collapse;
    margin: var(--spacing-md) 0;
    border: 1px solid var(--color-border);
    border-radius: 8px;
    overflow: hidden;
    background: var(--color-bg-sidebar);
}

thead {
    background: var(--color-bg-sidebar);
}

th {
    text-align: left;
    padding: var(--spacing-md) var(--spacing-lg);
    font-weight: 600;
    font-size: var(--font-size-sm);
    color: var(--color-text-primary);
    border-bottom: 2px solid var(--color-border);
}

td {
    padding: var(--spacing-md) var(--spacing-lg);
    color: var(--color-text-secondary);
    border-bottom: 1px solid var(--color-border);
    vertical-align: top;
}

td:first-child {
    font-weight: 500;
    width: 30%;
    min-width: 200px;
}

tr:last-child td {
    border-bottom: none;
}

.required {
    color: var(--color-error);
    font-size: var(--font-size-xs);
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-left: var(--spacing-xs);
}

/* API Endpoint Blocks */
.endpoint-block {
    margin: var(--spacing-xl) 0;
    padding: var(--spacing-lg);
    border: 1px solid var(--color-border);
    border-radius: 8px;
    background: #f0f3f5;
}

.endpoint-header {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-md);
}

.http-method {
    font-size: var(--font-size-xs);
    font-weight: 700;
    text-transform: uppercase;
    padding: 0.25em 0.75em;
    border-radius: 4px;
    letter-spacing: 0.05em;
}

.http-method.get {
    background: #e7f5ff;
    color: #1971c2;
}

.http-method.post {
    background: #d0f4e5;
    color: #087f5b;
}

.http-method.put {
    background: #fff4e6;
    color: #e67700;
}

.http-method.delete {
    background: #ffe9e9;
    color: #c92a2a;
}

.endpoint-path {
    font-family: 'Monaco', 'Consolas', monospace;
    font-size: var(--font-size-base);
    font-weight: 600;
    color: var(--color-text-primary);
}

/* Right Sidebar (Table of Contents) */
.sidebar-right {
    background: var(--color-bg-main);
    padding: var(--spacing-2xl) var(--spacing-lg);
    position: fixed;
    top: 80px;
    right: 0;
    width: var(--sidebar-right-width);
    height: calc(100vh - 80px);
    overflow-y: auto;
    border-left: 1px solid var(--color-border);
    z-index: 50;
}

.sidebar-right h4 {
    font-size: var(--font-size-xs);
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--color-text-tertiary);
    margin: 0 0 var(--spacing-md) 0;
}

.toc-list {
    list-style: none;
    margin: 0;
    padding: 0;
    min-height: 20px;
}

.sidebar-right .toc-list:empty::after {
    content: 'Loading...';
    color: var(--color-text-tertiary);
    font-size: var(--font-size-sm);
    font-style: italic;
}

.toc-link {
    display: block;
    padding: var(--spacing-xs) 0;
    color: var(--color-text-secondary);
    font-size: var(--font-size-sm);
    text-decoration: none;
    transition: color 0.15s ease;
    line-height: 1.5;
    outline: none;
}

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

.toc-link:focus {
    outline: none;
}

.see-also {
    margin-top: var(--spacing-xl);
    padding-top: var(--spacing-xl);
    border-top: 1px solid var(--color-border);
}

/* Responsive Design */
@media (max-width: 1200px) {
    .sidebar-right {
        display: none;
    }

    .content-main {
        margin-right: var(--spacing-2xl);
    }
}

@media (max-width: 768px) {
    .sidebar-left {
        position: static;
        width: 100%;
        height: auto;
        border-right: none;
        border-bottom: 1px solid var(--color-border);
    }

    .content-main {
        margin-left: var(--spacing-xl);
        margin-right: var(--spacing-xl);
        padding: var(--spacing-xl);
    }

    h1 {
        font-size: var(--font-size-2xl);
    }

    h2 {
        font-size: var(--font-size-xl);
    }

    .code-block pre {
        padding: var(--spacing-md);
    }
}

/* Smooth Scrolling */
html {
    scroll-behavior: smooth;
}

/* Selection */
::selection {
    background: rgba(99, 91, 255, 0.2);
}

/* Focus States */
a:focus,
button:focus {
    outline: 2px solid var(--color-primary);
    outline-offset: 2px;
}

/* Search Box */
.search-container {
    padding: 0 var(--spacing-xl);
    margin-bottom: var(--spacing-lg);
}

.search-input {
    width: 100%;
    padding: var(--spacing-sm) var(--spacing-md);
    border: 1px solid var(--color-border);
    border-radius: 6px;
    font-size: var(--font-size-sm);
    font-family: var(--font-family);
    background: var(--color-bg-main);
    color: var(--color-text-primary);
    transition: all 0.15s ease;
}

.search-input:focus {
    outline: none;
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px rgba(99, 91, 255, 0.1);
}

.search-input::placeholder {
    color: var(--color-text-tertiary);
}

/* Copy Button */
.copy-button {
    position: absolute;
    top: var(--spacing-md);
    right: var(--spacing-md);
    background: rgba(255, 255, 255, 0.1);
    border: 1px solid rgba(255, 255, 255, 0.2);
    color: rgba(255, 255, 255, 0.8);
    padding: 0.4em 0.8em;
    border-radius: 4px;
    font-size: var(--font-size-xs);
    font-weight: 500;
    cursor: pointer;
    transition: all 0.15s ease;
    font-family: var(--font-family);
}

.copy-button:hover {
    background: rgba(255, 255, 255, 0.15);
    color: #ffffff;
    border-color: rgba(255, 255, 255, 0.3);
}

.copy-button.copied {
    background: var(--color-success);
    border-color: var(--color-success);
    color: white;
}

/* Mobile Menu Toggle */
.mobile-menu-toggle {
    display: none;
    position: fixed;
    top: var(--spacing-md);
    left: var(--spacing-md);
    z-index: 200;
    background: var(--color-primary);
    color: white;
    border: none;
    padding: var(--spacing-sm) var(--spacing-md);
    border-radius: 6px;
    font-size: var(--font-size-sm);
    font-weight: 600;
    cursor: pointer;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.15);
    transition: all 0.15s ease;
}

.mobile-menu-toggle:hover {
    background: var(--color-primary-hover);
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.2);
}

.mobile-menu-toggle.active {
    background: var(--color-primary-hover);
}

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

    .sidebar-left {
        transform: translateX(-100%);
        transition: transform 0.3s ease;
        position: fixed;
        z-index: 150;
        box-shadow: 2px 0 12px rgba(0, 0, 0, 0.1);
    }

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

    .content-main {
        margin-top: calc(var(--spacing-2xl) + 40px);
    }
}

/* Active TOC Link */
.toc-link.active {
    color: var(--color-primary);
    font-weight: 600;
}

/* Workflow Steps */
.workflow-steps {
    display: flex;
    flex-direction: column;
    margin: var(--spacing-lg) 0;
}

.workflow-step {
    display: flex;
    gap: var(--spacing-md);
    padding: var(--spacing-lg);
    background: transparent;
    border: none;
    border-radius: 8px;
}

.step-number {
    flex-shrink: 0;
    width: 44px;
    height: 44px;
    background: linear-gradient(135deg, var(--color-primary) 0%, #7c75ff 100%);
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.25rem;
    font-weight: 700;
    box-shadow: 0 3px 6px rgba(99, 91, 255, 0.3);
}

.workflow-step .step-content {
    flex: 1;
}

.workflow-step .step-content h4 {
    margin: 0 0 var(--spacing-xs) 0;
    font-size: var(--font-size-lg);
    color: var(--color-text-primary);
    font-weight: 600;
}

.workflow-step .step-content p {
    margin: 0;
    font-size: var(--font-size-sm);
    color: var(--color-text-secondary);
    line-height: 1.5;
}

.workflow-arrow {
    font-size: 1.5rem;
    color: var(--color-primary);
    text-align: center;
    margin: var(--spacing-xs) 0;
    font-weight: 300;
}

/* Capabilities Grid */
.capabilities-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: var(--spacing-lg);
    margin: var(--spacing-xl) 0;
}

.capability-card {
    background: var(--color-bg-sidebar);
    border: 1px solid var(--color-border);
    border-radius: 8px;
    padding: var(--spacing-lg);
    transition: all 0.2s ease;
    display: block;
    text-decoration: none;
}

.capability-card:hover {
    border-color: var(--color-primary);
    box-shadow: 0 4px 12px rgba(99, 91, 255, 0.1);
    transform: translateY(-2px);
}

.capability-card:focus {
    outline: none;
}

.capability-card h4 {
    margin: 0 0 var(--spacing-sm) 0;
    font-size: var(--font-size-lg);
    color: var(--color-text-primary);
    font-weight: 600;
}

.capability-card p {
    margin: 0;
    color: var(--color-text-secondary);
    font-size: var(--font-size-base);
    line-height: 1.6;
}

/* Search Highlight */
mark.search-highlight {
    background-color: #fff59d;
    color: var(--color-text-primary);
    padding: 0.1em 0.2em;
    border-radius: 2px;
    font-weight: 500;
    animation: highlightFade 0.3s ease-in;
}

@keyframes highlightFade {
    from {
        background-color: #ffd54f;
    }
    to {
        background-color: #fff59d;
    }
}

/* Print Styles */
@media print {
    .sidebar-left,
    .sidebar-right,
    .copy-button,
    .mobile-menu-toggle {
        display: none;
    }

    body {
        grid-template-columns: 1fr;
    }

    .content-main {
        max-width: 100%;
        padding: 0;
    }
}