/* GA-FuL Documentation Styles */

:root {
    --primary-color: #667eea;
    --primary-dark: #764ba2;
    --secondary-color: #f093fb;
    --text-color: #333;
    --text-light: #666;
    --bg-color: #ffffff;
    --bg-light: #f8f9fa;
    --border-color: #e0e0e0;
    --code-bg: #f5f5f5;
    --nav-height: 60px;
    --container-width: 1200px;
    --shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
    --shadow-hover: 0 4px 16px rgba(102, 126, 234, 0.2);
}

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

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

/* Navigation Bar */
.navbar {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--primary-dark) 100%);
    color: white;
    height: var(--nav-height);
    box-shadow: var(--shadow);
    position: sticky;
    top: 0;
    z-index: 1000;
}

.nav-container {
    max-width: var(--container-width);
    margin: 0 auto;
    padding: 0 2rem;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.nav-brand a {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    color: white;
    text-decoration: none;
    font-size: 1.5rem;
    font-weight: 700;
}

.nav-icon {
    font-size: 1.8rem;
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: 0.5rem;
    flex: 1;
    justify-content: center;
}

.nav-link {
    color: white;
    text-decoration: none;
    padding: 0.5rem 1rem;
    border-radius: 4px;
    transition: all 0.3s ease;
    font-weight: 500;
}

.nav-link:hover {
    background: rgba(255, 255, 255, 0.2);
}

.nav-link.active {
    background: rgba(255, 255, 255, 0.3);
}

/* Language Switcher */
.lang-switcher {
    display: flex;
    align-items: center;
}

.lang-btn {
    display: flex;
    align-items: center;
    gap: 0.3rem;
    padding: 0.5rem 1rem;
    background: rgba(255, 255, 255, 0.2);
    border: 1px solid rgba(255, 255, 255, 0.3);
    border-radius: 4px;
    color: white;
    text-decoration: none;
    transition: all 0.3s ease;
    font-weight: 500;
}

.lang-btn:hover {
    background: rgba(255, 255, 255, 0.3);
    transform: translateY(-2px);
}

.lang-btn .flag {
    font-size: 1.2rem;
}

/* Mobile Menu Toggle */
.nav-toggle {
    display: none;
    background: none;
    border: none;
    cursor: pointer;
    padding: 0.5rem;
}

.hamburger {
    display: block;
    width: 25px;
    height: 2px;
    background: white;
    position: relative;
    transition: all 0.3s ease;
}

.hamburger::before,
.hamburger::after {
    content: '';
    position: absolute;
    width: 100%;
    height: 2px;
    background: white;
    transition: all 0.3s ease;
}

.hamburger::before {
    top: -8px;
}

.hamburger::after {
    bottom: -8px;
}

/* Main Content */
.main-content {
    min-height: calc(100vh - var(--nav-height) - 200px);
}

.container {
    max-width: var(--container-width);
    margin: 0 auto;
    padding: 2rem;
}

/* Breadcrumb */
.breadcrumb {
    padding: 1rem 0;
    color: var(--text-light);
    font-size: 0.9rem;
}

.breadcrumb a {
    color: var(--primary-color);
    text-decoration: none;
}

.breadcrumb a:hover {
    text-decoration: underline;
}

.breadcrumb .separator {
    margin: 0 0.5rem;
}

/* Content */
.content {
    background: white;
    padding: 3rem;
    border-radius: 8px;
    box-shadow: var(--shadow);
    margin-bottom: 2rem;
}

.content h1 {
    color: var(--primary-color);
    font-size: 2.5rem;
    margin-bottom: 1rem;
    border-bottom: 3px solid var(--primary-color);
    padding-bottom: 0.5rem;
}

.content h2 {
    color: var(--primary-dark);
    font-size: 2rem;
    margin-top: 2rem;
    margin-bottom: 1rem;
    border-bottom: 2px solid var(--border-color);
    padding-bottom: 0.5rem;
}

.content h3 {
    color: var(--text-color);
    font-size: 1.5rem;
    margin-top: 1.5rem;
    margin-bottom: 0.8rem;
}

.content h4 {
    color: var(--text-color);
    font-size: 1.2rem;
    margin-top: 1rem;
    margin-bottom: 0.5rem;
}

.content p {
    margin-bottom: 1rem;
}

.content ul, .content ol {
    margin-left: 2rem;
    margin-bottom: 1rem;
}

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

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

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

/* Code Blocks */
.content pre {
    background: var(--code-bg);
    border: 1px solid var(--border-color);
    border-left: 4px solid var(--primary-color);
    padding: 1.5rem;
    border-radius: 4px;
    overflow-x: auto;
    margin-bottom: 1.5rem;
}

.content code {
    background: var(--code-bg);
    padding: 0.2rem 0.4rem;
    border-radius: 3px;
    font-family: 'Courier New', Courier, monospace;
    font-size: 0.9em;
}

.content pre code {
    background: none;
    padding: 0;
}

/* Tables */
.content table {
    width: 100%;
    border-collapse: collapse;
    margin-bottom: 1.5rem;
    overflow-x: auto;
    display: block;
}

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

.content th {
    background: var(--primary-color);
    color: white;
    font-weight: 600;
}

.content tr:nth-child(even) {
    background: var(--bg-light);
}

/* Blockquote */
.content blockquote {
    border-left: 4px solid var(--primary-color);
    padding-left: 1rem;
    margin: 1.5rem 0;
    color: var(--text-light);
    font-style: italic;
}

/* Page Navigation */
.page-nav {
    display: flex;
    justify-content: space-between;
    gap: 1rem;
    margin-top: 2rem;
}

.page-nav-link {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 1rem;
    background: white;
    border: 1px solid var(--border-color);
    border-radius: 4px;
    text-decoration: none;
    color: var(--text-color);
    transition: all 0.3s ease;
    flex: 1;
    max-width: 45%;
}

.page-nav-link:hover {
    border-color: var(--primary-color);
    box-shadow: var(--shadow-hover);
    transform: translateY(-2px);
}

.page-nav-link.next {
    justify-content: flex-end;
    text-align: right;
}

.page-nav-link .arrow {
    font-size: 1.5rem;
    color: var(--primary-color);
}

/* Footer */
.footer {
    background: #2d3748;
    color: #a0aec0;
    padding: 3rem 0 1rem;
    margin-top: 4rem;
}

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

.footer-section h3 {
    color: white;
    margin-bottom: 1rem;
    font-size: 1.2rem;
}

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

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

.footer-section a {
    color: #a0aec0;
    text-decoration: none;
    transition: color 0.2s ease;
}

.footer-section a:hover {
    color: var(--secondary-color);
}

.footer-section .small {
    font-size: 0.9rem;
    margin-top: 0.5rem;
}

.footer-bottom {
    border-top: 1px solid #4a5568;
    padding-top: 1rem;
    text-align: center;
    font-size: 0.9rem;
}

/* Responsive Design */
@media (max-width: 768px) {
    .nav-menu {
        display: none;
        position: absolute;
        top: var(--nav-height);
        left: 0;
        right: 0;
        background: linear-gradient(135deg, var(--primary-color) 0%, var(--primary-dark) 100%);
        flex-direction: column;
        padding: 1rem;
        box-shadow: var(--shadow);
    }

    .nav-menu.active {
        display: flex;
    }

    .nav-toggle {
        display: block;
    }

    .content {
        padding: 1.5rem;
    }

    .content h1 {
        font-size: 2rem;
    }

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

    .page-nav {
        flex-direction: column;
    }

    .page-nav-link {
        max-width: 100%;
    }

    .footer-content {
        grid-template-columns: 1fr;
    }
}

/* 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; }