/* ===================================
   CSS Variables for Theming
   =================================== */
:root {
    --primary-color: #2563eb;
    --primary-dark: #1e40af;
    --primary-light: #3b82f6;
    
    --success-color: #10b981;
    --warning-color: #f59e0b;
    --error-color: #ef4444;
    --info-color: #3b82f6;
    
    --bg-primary: #ffffff;
    --bg-secondary: #f9fafb;
    --bg-tertiary: #f3f4f6;
    --bg-code: #1e293b;
    
    --text-primary: #111827;
    --text-secondary: #6b7280;
    --text-tertiary: #9ca3af;
    
    --border-color: #e5e7eb;
    --border-light: #f3f4f6;
    
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1);
    
    --sidebar-width: 280px;
    --header-height: 60px;
    
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

/* Dark Theme */
body.dark-theme {
    --bg-primary: #0f172a;
    --bg-secondary: #1e293b;
    --bg-tertiary: #334155;
    --bg-code: #0f172a;
    
    --text-primary: #f1f5f9;
    --text-secondary: #cbd5e1;
    --text-tertiary: #94a3b8;
    
    --border-color: #334155;
    --border-light: #1e293b;
}

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

html {
    scroll-behavior: smooth;
    font-size: 16px;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
    background-color: var(--bg-secondary);
    color: var(--text-primary);
    line-height: 1.6;
    transition: var(--transition);
}

/* ===================================
   Header Styles
   =================================== */
.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    height: var(--header-height);
    background-color: var(--bg-primary);
    border-bottom: 1px solid var(--border-color);
    z-index: 1000;
    box-shadow: var(--shadow-sm);
}

.header-container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 100%;
    padding: 0 2rem;
    max-width: 100%;
}

.logo {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--primary-color);
}

.logo i {
    font-size: 1.5rem;
}

.header-nav {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.theme-toggle,
.mobile-menu-toggle {
    background: none;
    border: none;
    cursor: pointer;
    padding: 0.5rem;
    border-radius: 0.5rem;
    color: var(--text-secondary);
    font-size: 1.25rem;
    transition: var(--transition);
    display: flex;
    align-items: center;
    justify-content: center;
}

.theme-toggle:hover,
.mobile-menu-toggle:hover {
    background-color: var(--bg-secondary);
    color: var(--primary-color);
}

.mobile-menu-toggle {
    display: none;
}

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

/* ===================================
   Sidebar Styles
   =================================== */
.sidebar {
    position: fixed;
    top: var(--header-height);
    left: 0;
    width: var(--sidebar-width);
    height: calc(100vh - var(--header-height));
    background-color: var(--bg-primary);
    border-right: 1px solid var(--border-color);
    overflow-y: auto;
    z-index: 900;
    transition: var(--transition);
}

.sidebar-header {
    padding: 1.5rem;
    border-bottom: 1px solid var(--border-color);
    position: sticky;
    top: 0;
    background-color: var(--bg-primary);
    z-index: 10;
}

.search-box {
    width: 100%;
    padding: 0.625rem 1rem;
    border: 1px solid var(--border-color);
    border-radius: 0.5rem;
    background-color: var(--bg-secondary);
    color: var(--text-primary);
    font-size: 0.875rem;
    transition: var(--transition);
}

.search-box:focus {
    outline: none;
    border-color: var(--primary-color);
    background-color: var(--bg-primary);
}

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

.sidebar-nav {
    padding: 1rem 0;
}

.nav-section {
    margin-bottom: 1.5rem;
}

.nav-section-title {
    font-size: 0.75rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--text-tertiary);
    padding: 0.5rem 1.5rem;
    margin-bottom: 0.25rem;
}

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

.nav-link {
    display: block;
    padding: 0.625rem 1.5rem;
    color: var(--text-secondary);
    text-decoration: none;
    font-size: 0.875rem;
    transition: var(--transition);
    border-left: 3px solid transparent;
}

.nav-link:hover {
    color: var(--primary-color);
    background-color: var(--bg-secondary);
}

.nav-link.active {
    color: var(--primary-color);
    background-color: var(--bg-secondary);
    border-left-color: var(--primary-color);
    font-weight: 500;
}

/* ===================================
   Content Styles
   =================================== */
.content {
    flex: 1;
    margin-left: var(--sidebar-width);
    padding: 3rem;
    max-width: 1200px;
}

.doc-section {
    margin-bottom: 4rem;
    scroll-margin-top: calc(var(--header-height) + 2rem);
}

.section-title {
    font-size: 2rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 1rem;
    line-height: 1.2;
}

.doc-section h2.section-title {
    font-size: 1.75rem;
    margin-top: 2rem;
}

.subsection-title {
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-top: 2rem;
    margin-bottom: 1rem;
}

.section-description {
    font-size: 1rem;
    color: var(--text-secondary);
    margin-bottom: 1.5rem;
    line-height: 1.7;
}

/* ===================================
   Code Blocks
   =================================== */
.code-block-container {
    margin: 1.5rem 0;
    border-radius: 0.75rem;
    overflow: hidden;
    box-shadow: var(--shadow-md);
}

.code-block-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0.75rem 1.25rem;
    background-color: var(--bg-code);
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.code-block-title {
    font-size: 0.875rem;
    font-weight: 500;
    color: #94a3b8;
}

.copy-btn {
    display: flex;
    align-items: center;
    gap: 0.375rem;
    background-color: rgba(255, 255, 255, 0.1);
    border: none;
    color: #cbd5e1;
    padding: 0.375rem 0.75rem;
    border-radius: 0.375rem;
    font-size: 0.8125rem;
    cursor: pointer;
    transition: var(--transition);
}

.copy-btn:hover {
    background-color: rgba(255, 255, 255, 0.2);
    color: #fff;
}

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

.code-block {
    margin: 0;
    padding: 1.25rem;
    background-color: var(--bg-code);
    color: #e2e8f0;
    overflow-x: auto;
    font-family: 'SF Mono', 'Monaco', 'Inconsolata', 'Fira Code', 'Droid Sans Mono', 'Source Code Pro', monospace;
    font-size: 0.875rem;
    line-height: 1.7;
}

.code-block code {
    background: none;
    padding: 0;
    color: inherit;
}

code {
    background-color: var(--bg-tertiary);
    color: var(--primary-color);
    padding: 0.125rem 0.375rem;
    border-radius: 0.25rem;
    font-family: 'SF Mono', 'Monaco', 'Inconsolata', 'Fira Code', 'Droid Sans Mono', 'Source Code Pro', monospace;
    font-size: 0.875em;
}

/* ===================================
   Endpoint Cards
   =================================== */
.endpoint-card {
    background-color: var(--bg-primary);
    border: 1px solid var(--border-color);
    border-radius: 0.75rem;
    padding: 2rem;
    margin: 1.5rem 0;
    box-shadow: var(--shadow-sm);
}

.endpoint-header {
    display: flex;
    align-items: center;
    gap: 1rem;
    margin-bottom: 2rem;
    flex-wrap: wrap;
}

.http-method {
    display: inline-block;
    padding: 0.375rem 0.75rem;
    border-radius: 0.375rem;
    font-size: 0.8125rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.025em;
}

.http-method.get {
    background-color: rgba(16, 185, 129, 0.1);
    color: var(--success-color);
}

.http-method.post {
    background-color: rgba(59, 130, 246, 0.1);
    color: var(--info-color);
}

.http-method.put {
    background-color: rgba(245, 158, 11, 0.1);
    color: var(--warning-color);
}

.http-method.delete {
    background-color: rgba(239, 68, 68, 0.1);
    color: var(--error-color);
}

.endpoint-path {
    font-family: 'SF Mono', monospace;
    font-size: 1rem;
    color: var(--text-primary);
    font-weight: 500;
}

/* ===================================
   Tables
   =================================== */
.table {
    width: 100%;
    border-collapse: collapse;
    margin: 1.5rem 0;
    background-color: var(--bg-primary);
    border-radius: 0.5rem;
    overflow: hidden;
    box-shadow: var(--shadow-sm);
}

.table thead {
    background-color: var(--bg-tertiary);
}

.table th {
    padding: 0.875rem 1rem;
    text-align: left;
    font-weight: 600;
    font-size: 0.875rem;
    color: var(--text-primary);
    border-bottom: 2px solid var(--border-color);
}

.table td {
    padding: 0.875rem 1rem;
    border-bottom: 1px solid var(--border-light);
    color: var(--text-secondary);
    font-size: 0.875rem;
}

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

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

/* ===================================
   Badges
   =================================== */
.badge {
    display: inline-block;
    padding: 0.25rem 0.625rem;
    border-radius: 9999px;
    font-size: 0.75rem;
    font-weight: 600;
    background-color: var(--bg-tertiary);
    color: var(--text-secondary);
}

.badge-success {
    background-color: rgba(16, 185, 129, 0.1);
    color: var(--success-color);
}

.badge-warning {
    background-color: rgba(245, 158, 11, 0.1);
    color: var(--warning-color);
}

.badge-error {
    background-color: rgba(239, 68, 68, 0.1);
    color: var(--error-color);
}

/* ===================================
   Info Boxes
   =================================== */
.info-box {
    display: flex;
    gap: 1rem;
    padding: 1rem 1.25rem;
    border-radius: 0.5rem;
    margin: 1.5rem 0;
    border-left: 4px solid;
}

.info-box i {
    font-size: 1.25rem;
    margin-top: 0.125rem;
}

.info-box.info {
    background-color: rgba(59, 130, 246, 0.1);
    border-left-color: var(--info-color);
    color: var(--text-primary);
}

.info-box.info i {
    color: var(--info-color);
}

.info-box.warning {
    background-color: rgba(245, 158, 11, 0.1);
    border-left-color: var(--warning-color);
    color: var(--text-primary);
}

.info-box.warning i {
    color: var(--warning-color);
}

.info-box.success {
    background-color: rgba(16, 185, 129, 0.1);
    border-left-color: var(--success-color);
    color: var(--text-primary);
}

.info-box.success i {
    color: var(--success-color);
}

.info-box.error {
    background-color: rgba(239, 68, 68, 0.1);
    border-left-color: var(--error-color);
    color: var(--text-primary);
}

.info-box.error i {
    color: var(--error-color);
}

/* ===================================
   Footer
   =================================== */
.footer {
    background-color: var(--bg-primary);
    border-top: 1px solid var(--border-color);
    padding: 2rem;
    margin-left: var(--sidebar-width);
}

.footer-container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    max-width: 1200px;
    padding: 0 3rem;
    flex-wrap: wrap;
    gap: 1rem;
}

.footer-container p {
    color: var(--text-secondary);
    font-size: 0.875rem;
}

.footer-links {
    display: flex;
    gap: 1.5rem;
}

.footer-link {
    color: var(--text-secondary);
    text-decoration: none;
    font-size: 0.875rem;
    transition: var(--transition);
}

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

/* ===================================
   Scrollbar Styling
   =================================== */
.sidebar::-webkit-scrollbar,
.content::-webkit-scrollbar {
    width: 6px;
    height: 6px;
}

.sidebar::-webkit-scrollbar-track,
.content::-webkit-scrollbar-track {
    background: var(--bg-secondary);
}

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

.sidebar::-webkit-scrollbar-thumb:hover,
.content::-webkit-scrollbar-thumb:hover {
    background: var(--text-tertiary);
}

/* ===================================
   Responsive Design - Tablet
   =================================== */
@media (max-width: 1024px) {
    :root {
        --sidebar-width: 260px;
    }
    
    .content {
        padding: 2rem;
    }
    
    .header-container {
        padding: 0 1.5rem;
    }
}

/* ===================================
   Responsive Design - Mobile
   =================================== */
@media (max-width: 768px) {
    .mobile-menu-toggle {
        display: flex;
    }
    
    .sidebar {
        transform: translateX(-100%);
        width: 280px;
        box-shadow: var(--shadow-xl);
    }
    
    .sidebar.active {
        transform: translateX(0);
    }
    
    .content {
        margin-left: 0;
        padding: 1.5rem;
    }
    
    .footer {
        margin-left: 0;
    }
    
    .footer-container {
        padding: 0 1.5rem;
        flex-direction: column;
        text-align: center;
    }
    
    .section-title {
        font-size: 1.75rem;
    }
    
    .doc-section h2.section-title {
        font-size: 1.5rem;
    }
    
    .endpoint-header {
        flex-direction: column;
        align-items: flex-start;
        gap: 0.5rem;
    }
    
    .endpoint-path {
        font-size: 0.875rem;
        word-break: break-all;
    }
    
    .code-block {
        font-size: 0.8125rem;
    }
    
    .table {
        font-size: 0.8125rem;
    }
    
    .table th,
    .table td {
        padding: 0.625rem 0.75rem;
    }
    
    .endpoint-card {
        padding: 1.25rem;
    }
    
    .header-container {
        padding: 0 1rem;
    }
}

@media (max-width: 480px) {
    .content {
        padding: 1rem;
    }
    
    .logo span {
        display: none;
    }
    
    .section-title {
        font-size: 1.5rem;
    }
    
    .doc-section h2.section-title {
        font-size: 1.25rem;
    }
    
    .code-block-header {
        flex-direction: column;
        align-items: flex-start;
        gap: 0.5rem;
    }
    
    .table-responsive {
        overflow-x: auto;
    }
}

/* ===================================
   Print Styles
   =================================== */
@media print {
    .header,
    .sidebar,
    .footer,
    .theme-toggle,
    .mobile-menu-toggle,
    .copy-btn {
        display: none;
    }
    
    .content {
        margin-left: 0;
        padding: 0;
    }
    
    .doc-section {
        page-break-inside: avoid;
    }
}

/* ===================================
   Animations
   =================================== */
@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.doc-section {
    animation: fadeIn 0.5s ease-out;
}

/* ===================================
   Utility Classes
   =================================== */
.text-center {
    text-align: center;
}

.mt-1 { margin-top: 0.5rem; }
.mt-2 { margin-top: 1rem; }
.mt-3 { margin-top: 1.5rem; }
.mt-4 { margin-top: 2rem; }

.mb-1 { margin-bottom: 0.5rem; }
.mb-2 { margin-bottom: 1rem; }
.mb-3 { margin-bottom: 1.5rem; }
.mb-4 { margin-bottom: 2rem; }

.hidden {
    display: none;
}

/* ===================================
   Diagram Styles
   =================================== */
.diagram-container {
    background-color: var(--bg-primary);
    border: 1px solid var(--border-color);
    border-radius: 0.75rem;
    padding: 2rem;
    margin: 2rem 0;
    overflow-x: auto;
    box-shadow: var(--shadow-sm);
}

.diagram-container .mermaid {
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 400px;
    background: transparent;
}

.diagram-container svg {
    max-width: 100%;
    height: auto;
}

/* Mermaid diagram text styling */
.diagram-container .mermaid text {
    font-family: 'Inter', sans-serif !important;
    fill: var(--text-primary) !important;
}

/* Responsive diagram container */
@media (max-width: 768px) {
    .diagram-container {
        padding: 1rem;
        overflow-x: scroll;
    }
    
    .diagram-container .mermaid {
        min-height: 300px;
    }
}

@media (max-width: 480px) {
    .diagram-container {
        padding: 0.75rem;
    }
    
    .diagram-container .mermaid {
        min-height: 250px;
        font-size: 0.875rem;
    }
}