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

:root {
    --primary-color: #2563eb;
    --primary-dark: #1e40af;
    --secondary-color: #10b981;
    --danger-color: #ef4444;
    --warning-color: #f59e0b;
    --bg-color: #f8fafc;
    --card-bg: #ffffff;
    --text-primary: #1e293b;
    --text-secondary: #64748b;
    --border-color: #e2e8f0;
    --code-bg: #f1f5f9;
    --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);
}

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

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

.navbar {
    background-color: var(--card-bg);
    border-bottom: 1px solid var(--border-color);
    position: sticky;
    top: 0;
    z-index: 1000;
    box-shadow: var(--shadow-sm);
}

.navbar .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 20px;
}

.nav-brand {
    display: flex;
    align-items: center;
    gap: 12px;
}

.nav-brand h1 {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--primary-color);
}

.version {
    background-color: var(--primary-color);
    color: white;
    padding: 4px 12px;
    border-radius: 20px;
    font-size: 0.75rem;
    font-weight: 600;
}

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

.nav-menu a {
    color: var(--text-secondary);
    text-decoration: none;
    font-weight: 500;
    transition: color 0.2s;
}

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

.main-content {
    padding: 3rem 0;
}

.section {
    margin-bottom: 4rem;
}

.section h2 {
    font-size: 2rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 1rem;
    padding-bottom: 0.5rem;
    border-bottom: 3px solid var(--primary-color);
}

.section p {
    color: var(--text-secondary);
    margin-bottom: 1.5rem;
    font-size: 1.05rem;
}

.subsection-title {
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--text-primary);
    margin: 2.5rem 0 1rem 0;
    padding-left: 1rem;
    border-left: 4px solid var(--secondary-color);
}

.info-box {
    background-color: var(--card-bg);
    border: 1px solid var(--border-color);
    border-left: 4px solid var(--primary-color);
    padding: 1.5rem;
    margin: 1.5rem 0;
    border-radius: 8px;
    box-shadow: var(--shadow-sm);
}

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

.info-box h3,
.info-box h4 {
    margin-bottom: 0.75rem;
    color: var(--text-primary);
}

.info-box ul {
    margin-left: 1.5rem;
    color: var(--text-secondary);
}

.base-url {
    display: inline-block;
    background-color: var(--code-bg);
    padding: 0.5rem 1rem;
    border-radius: 6px;
    font-family: 'Courier New', monospace;
    font-size: 1rem;
    color: var(--primary-color);
    font-weight: 600;
}

.endpoint-card {
    background-color: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    margin: 2rem 0;
    overflow: hidden;
    box-shadow: var(--shadow-md);
    transition: transform 0.2s, box-shadow 0.2s;
}

.endpoint-card:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

.endpoint-header {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--primary-dark) 100%);
    padding: 1.25rem 1.5rem;
    display: flex;
    align-items: center;
    gap: 1rem;
}

.http-method {
    font-weight: 700;
    font-size: 0.875rem;
    padding: 6px 14px;
    border-radius: 6px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

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

.http-method.post {
    background-color: #f59e0b;
    color: white;
}

.http-method.put {
    background-color: #8b5cf6;
    color: white;
}

.endpoint-path {
    color: white;
    font-family: 'Courier New', monospace;
    font-size: 1.1rem;
    font-weight: 600;
}

.endpoint-content {
    padding: 2rem;
}

.endpoint-content h4 {
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--text-primary);
    margin: 1.5rem 0 0.75rem 0;
}

.endpoint-content h4:first-child {
    margin-top: 0;
}

.code-block {
    background-color: var(--code-bg);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 1.25rem;
    margin: 1rem 0;
    overflow-x: auto;
}

.code-block pre {
    margin: 0;
    font-family: 'Courier New', Consolas, Monaco, monospace;
    font-size: 0.9rem;
    line-height: 1.5;
    color: var(--text-primary);
    white-space: pre;
}

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

.code-block code {
    font-family: inherit;
}

code {
    background-color: var(--code-bg);
    padding: 2px 6px;
    border-radius: 4px;
    font-family: 'Courier New', monospace;
    font-size: 0.9em;
    color: var(--primary-color);
}

.error-table {
    width: 100%;
    border-collapse: collapse;
    margin: 1rem 0;
    background-color: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    overflow: hidden;
}

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

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

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

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

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

.error-table td:first-child {
    font-weight: 600;
    color: var(--primary-color);
}

.param-list {
    list-style: none;
    margin: 1rem 0;
}

.param-list li {
    padding: 0.5rem 0;
    color: var(--text-secondary);
}

.param-list li code {
    margin-right: 0.5rem;
}

.field-note {
    color: var(--text-secondary);
    font-size: 0.95rem;
    font-style: italic;
    margin-top: 0.5rem;
}

.config-card {
    background-color: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 2rem;
    margin: 2rem 0;
    box-shadow: var(--shadow-md);
}

.config-card h3 {
    font-size: 1.3rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 1.5rem;
}

.footer {
    background-color: var(--card-bg);
    border-top: 1px solid var(--border-color);
    padding: 2rem 0;
    margin-top: 4rem;
    text-align: center;
}

.footer p {
    color: var(--text-secondary);
    margin: 0;
}

a {
    color: var(--primary-color);
    text-decoration: none;
    transition: color 0.2s;
}

a:hover {
    color: var(--primary-dark);
    text-decoration: underline;
}

@media (max-width: 768px) {
    .navbar .container {
        flex-direction: column;
        gap: 1rem;
    }

    .nav-menu {
        flex-wrap: wrap;
        gap: 1rem;
        justify-content: center;
    }

    .section h2 {
        font-size: 1.5rem;
    }

    .subsection-title {
        font-size: 1.25rem;
    }

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

    .endpoint-path {
        font-size: 0.9rem;
        word-break: break-all;
    }

    .endpoint-content {
        padding: 1.5rem;
    }

    .code-block {
        padding: 1rem;
    }

    .code-block pre {
        font-size: 0.8rem;
    }

    .error-table {
        font-size: 0.875rem;
    }

    .error-table th,
    .error-table td {
        padding: 0.625rem 0.75rem;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 15px;
    }

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

    .section {
        margin-bottom: 3rem;
    }

    .nav-brand h1 {
        font-size: 1.25rem;
    }

    .error-table {
        display: block;
        overflow-x: auto;
    }
}

.scroll-to-top {
    position: fixed;
    bottom: 2rem;
    right: 2rem;
    background-color: var(--primary-color);
    color: white;
    width: 50px;
    height: 50px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    box-shadow: var(--shadow-lg);
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.3s, visibility 0.3s, transform 0.2s;
    z-index: 999;
}

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

.scroll-to-top:hover {
    transform: translateY(-3px);
    background-color: var(--primary-dark);
}

.highlight {
    background-color: #fef3c7;
    padding: 2px 4px;
    border-radius: 3px;
}

.copy-btn {
    position: absolute;
    top: 10px;
    right: 10px;
    background-color: var(--primary-color);
    color: white;
    border: none;
    padding: 6px 12px;
    border-radius: 6px;
    font-size: 0.8rem;
    cursor: pointer;
    transition: background-color 0.2s;
    font-weight: 600;
}

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

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

.toggle-btn {
    margin-left: auto;
    font-size: 1.5rem;
    font-weight: bold;
    color: white;
    cursor: pointer;
    padding: 0 10px;
    user-select: none;
}

.fade-in {
    animation: fadeIn 0.6s ease-in;
}

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

.reading-progress {
    position: fixed;
    top: 0;
    left: 0;
    height: 3px;
    background: linear-gradient(90deg, var(--primary-color), var(--secondary-color));
    z-index: 9999;
    transition: width 0.1s ease;
}

.print-btn {
    background-color: var(--secondary-color);
    color: white;
    border: none;
    padding: 10px 20px;
    border-radius: 8px;
    font-size: 0.95rem;
    font-weight: 600;
    cursor: pointer;
    margin-bottom: 2rem;
    transition: background-color 0.2s, transform 0.2s;
}

.print-btn:hover {
    background-color: #059669;
    transform: translateY(-2px);
}

.dark-mode-toggle {
    background-color: transparent;
    border: 2px solid var(--border-color);
    padding: 8px 12px;
    border-radius: 8px;
    font-size: 1.2rem;
    cursor: pointer;
    transition: all 0.2s;
}

.dark-mode-toggle:hover {
    background-color: var(--code-bg);
    transform: scale(1.1);
}

.nav-menu a.active {
    color: var(--primary-color);
    font-weight: 700;
}

body.dark-mode {
    --bg-color: #0f172a;
    --card-bg: #1e293b;
    --text-primary: #f1f5f9;
    --text-secondary: #cbd5e1;
    --border-color: #334155;
    --code-bg: #334155;
}

body.dark-mode .navbar {
    background-color: var(--card-bg);
}

body.dark-mode .endpoint-header {
    background: linear-gradient(135deg, #1e40af 0%, #1e3a8a 100%);
}

@media print {
    .navbar,
    .scroll-to-top,
    .copy-btn,
    .toggle-btn,
    .print-btn,
    .dark-mode-toggle,
    .reading-progress {
        display: none !important;
    }
    
    .endpoint-content {
        display: block !important;
    }
    
    .endpoint-card {
        page-break-inside: avoid;
        box-shadow: none;
        border: 1px solid #ccc;
    }
    
    body {
        background-color: white;
    }
}