/* 
 * Documentation Page Stylesheet
 * Modern, responsive design with sticky sidebar navigation
 * Uses CSS Foundation System variables for consistency
 */

/* ============================================
   Layout Structure
   ============================================ */

.docs-wrapper {
    display: grid;
    grid-template-columns: minmax(240px, 280px) 1fr;
    gap: 2rem;
    max-width: 1400px;
    margin: 2rem auto;
    padding: 0;
    min-height: calc(100vh - 200px);
}

/* ============================================
   Sidebar Navigation
   ============================================ */

.docs-sidebar {
    position: sticky;
    top: 100px;
    width: 100%;
    height: fit-content;
    max-height: calc(100vh - 120px);
    overflow-y: auto;
    background: rgb(255 255 255 / 98%);
    backdrop-filter: blur(10px);
    border-radius: 16px;
    padding: 1.5rem;
    box-shadow: 0 4px 20px rgb(0 0 0 / 8%);
    border: 1px solid rgb(25 118 210 / 15%);
}

.sidebar-header {
    margin-bottom: 1.5rem;
    padding-bottom: 1rem;
    border-bottom: 2px solid var(--primary-color);
}

.sidebar-header h3 {
    color: var(--primary-color);
    font-size: 1.3rem;
    font-weight: 700;
    margin: 0;
}

.sidebar-nav {
    display: flex;
    flex-direction: column;
    gap: 0.25rem;
}

.nav-link,
.nav-link-sub {
    display: block;
    padding: 0.75rem 1rem;
    color: var(--text-dark);
    text-decoration: none;
    border-radius: 8px;
    font-size: 0.95rem;
    font-weight: 500;
    transition: all 0.3s ease;
    position: relative;
}

.nav-link:hover,
.nav-link-sub:hover {
    background: rgb(25 118 210 / 10%);
    color: var(--primary-color);
    transform: translateX(4px);
}

.nav-link.active {
    background: linear-gradient(135deg, var(--primary-color), var(--primary-dark));
    color: white;
    font-weight: 600;
    box-shadow: 0 4px 12px rgb(25 118 210 / 30%);
}

.nav-link.active::before {
    content: '';
    position: absolute;
    left: 0;
    top: 50%;
    transform: translateY(-50%);
    width: 4px;
    height: 60%;
    background: white;
    border-radius: 0 4px 4px 0;
}

.nav-submenu {
    display: flex;
    flex-direction: column;
    gap: 0.25rem;
    margin-left: 1rem;
    padding-left: 1rem;
    border-left: 2px solid rgb(25 118 210 / 20%);
}

.nav-link-sub {
    font-size: 0.9rem;
    padding: 0.6rem 0.8rem;
    font-weight: 400;
}

.nav-link-sub.active {
    background: rgb(25 118 210 / 15%);
    color: var(--primary-color);
    font-weight: 600;
}

/* Custom scrollbar for sidebar */
.docs-sidebar::-webkit-scrollbar {
    width: 6px;
}

.docs-sidebar::-webkit-scrollbar-track {
    background: rgb(0 0 0 / 5%);
    border-radius: 10px;
}

.docs-sidebar::-webkit-scrollbar-thumb {
    background: var(--primary-color);
    border-radius: 10px;
}

.docs-sidebar::-webkit-scrollbar-thumb:hover {
    background: var(--primary-dark);
}

/* ============================================
   Main Content Area
   ============================================ */

.docs-content {
    background: rgb(255 255 255 / 98%);
    backdrop-filter: blur(10px);
    border-radius: 16px;
    padding: 2rem;
    box-shadow: 0 4px 20px rgb(0 0 0 / 8%);
    border: 1px solid rgb(25 118 210 / 15%);
    line-height: 1.8;
    width: 100%;
    min-width: 0;
    overflow-x: hidden;
}

.docs-header {
    text-align: center;
    margin-bottom: 3rem;
    padding-bottom: 2rem;
    border-bottom: 3px solid var(--primary-color);
}

.docs-header h1 {
    color: var(--primary-color);
    font-size: 2.8rem;
    font-weight: 700;
    margin-bottom: 0.5rem;
    background: linear-gradient(135deg, var(--primary-color), var(--primary-dark));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.docs-header .subtitle {
    color: var(--text-dark);
    font-size: 1.2rem;
    margin: 0;
    font-weight: 500;
}

/* ============================================
   Sections
   ============================================ */

.docs-section {
    margin-bottom: 4rem;
    scroll-margin-top: 100px;
}

.docs-section h2 {
    color: var(--primary-color);
    font-size: 2rem;
    font-weight: 700;
    margin-bottom: 1.5rem;
    padding-bottom: 0.75rem;
    border-bottom: 2px solid rgb(25 118 210 / 30%);
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.docs-section h3 {
    color: var(--text-dark);
    font-size: 1.5rem;
    font-weight: 600;
    margin-top: 2rem;
    margin-bottom: 1rem;
}

.docs-section h4 {
    color: var(--text-dark);
    font-size: 1.2rem;
    font-weight: 600;
    margin-top: 1.5rem;
    margin-bottom: 0.75rem;
}

.docs-section p {
    color: var(--text-dark);
    margin-bottom: 1rem;
    text-align: justify;
}

.docs-section ul,
.docs-section ol {
    margin: 1rem 0;
    padding-left: 2rem;
}

.docs-section li {
    color: var(--text-dark);
    margin-bottom: 0.5rem;
}

.docs-section code {
    background: rgb(25 118 210 / 10%);
    color: var(--primary-dark);
    padding: 0.2rem 0.5rem;
    border-radius: 4px;
    font-family: 'JetBrains Mono', 'Fira Code', monospace;
    font-size: 0.9em;
}

/* ============================================
   Special Boxes
   ============================================ */

.intro-box {
    background: linear-gradient(135deg, rgb(25 118 210 / 8%), rgb(25 118 210 / 15%));
    border-left: 4px solid var(--primary-color);
    border-radius: 12px;
    padding: 1.5rem;
    margin: 1.5rem 0;
}

.intro-box h3 {
    color: var(--primary-color);
    margin-top: 0;
    margin-bottom: 1rem;
}

.info-box {
    background: rgb(33 150 243 / 10%);
    border: 1px solid rgb(33 150 243 / 30%);
    border-left: 4px solid rgb(33 150 243);
    border-radius: 8px;
    padding: 1.25rem;
    margin: 1.5rem 0;
    color: var(--text-dark);
}

.info-box p,
.info-box li {
    color: var(--text-dark);
}

.info-box strong {
    color: rgb(33 150 243);
}

.highlight-box {
    background: var(--success-bg);
    border: 1px solid var(--success-light);
    border-left: 4px solid var(--success-color);
    border-radius: 8px;
    padding: 1.25rem;
    margin: 1.5rem 0;
}

.highlight-box h3 {
    color: var(--success-color);
    margin-top: 0;
}

.warning-box {
    background: var(--warning-bg);
    border: 1px solid var(--warning-light);
    border-left: 4px solid var(--warning-color);
    border-radius: 8px;
    padding: 1.25rem;
    margin: 1.5rem 0;
}

.warning-box h3 {
    color: var(--warning-color);
    margin-top: 0;
}

/* ============================================
   Feature Grid
   ============================================ */

.feature-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 1.5rem;
    margin: 2rem 0;
}

.feature-card {
    background: linear-gradient(135deg, rgb(255 255 255 / 95%), rgb(248 250 252 / 95%));
    border: 1px solid rgb(25 118 210 / 20%);
    border-radius: 12px;
    padding: 1.5rem;
    text-align: center;
    transition: all 0.3s ease;
}

.feature-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 8px 24px rgb(25 118 210 / 20%);
    border-color: var(--primary-color);
}

.feature-icon {
    font-size: 3rem;
    margin-bottom: 1rem;
}

.feature-card h4 {
    color: var(--primary-color);
    font-size: 1.2rem;
    font-weight: 600;
    margin: 0.5rem 0;
}

.feature-card p {
    color: var(--text-dark);
    font-size: 0.95rem;
    margin: 0;
    text-align: center;
}

/* ============================================
   Step Container
   ============================================ */

.step-container {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
    margin: 2rem 0;
}

.step-box {
    display: flex;
    gap: 1.5rem;
    background: rgb(248 250 252 / 95%);
    border: 1px solid rgb(25 118 210 / 20%);
    border-radius: 12px;
    padding: 1.5rem;
    transition: all 0.3s ease;
}

.step-box:hover {
    border-color: var(--primary-color);
    box-shadow: 0 4px 16px rgb(25 118 210 / 15%);
}

.step-number {
    flex-shrink: 0;
    width: 50px;
    height: 50px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, var(--primary-color), var(--primary-dark));
    color: white;
    font-size: 1.5rem;
    font-weight: 700;
    border-radius: 50%;
    box-shadow: 0 4px 12px rgb(25 118 210 / 30%);
}

.step-content {
    flex: 1;
}

.step-content h3,
.step-content h4 {
    color: var(--primary-color);
    margin-top: 0;
    margin-bottom: 0.75rem;
}

.step-content ol,
.step-content ul {
    margin: 0.5rem 0;
}

/* ============================================
   Code Examples
   ============================================ */

.code-example {
    background: rgb(30 41 59);
    border-radius: 12px;
    overflow: hidden;
    margin: 1.5rem 0;
    box-shadow: 0 4px 16px rgb(0 0 0 / 15%);
}

.code-header {
    background: rgb(15 23 42);
    color: rgb(148 163 184);
    padding: 0.75rem 1.25rem;
    font-size: 0.9rem;
    font-weight: 600;
    border-bottom: 1px solid rgb(51 65 85);
}

.code-example pre {
    margin: 0;
    padding: 1.5rem;
    overflow-x: auto;
}

.code-example code {
    background: transparent;
    color: rgb(226 232 240);
    padding: 0;
    font-family: 'JetBrains Mono', 'Fira Code', monospace;
    font-size: 0.9rem;
    line-height: 1.6;
}

/* ============================================
   Package Categories
   ============================================ */

.package-categories {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
    margin: 2rem 0;
}

.package-category {
    background: rgb(248 250 252 / 95%);
    border: 1px solid rgb(25 118 210 / 20%);
    border-radius: 12px;
    padding: 1.5rem;
}

.package-category h4 {
    color: var(--primary-color);
    margin-top: 0;
    margin-bottom: 1rem;
}

/* ============================================
   Status Grid
   ============================================ */

.status-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1.5rem;
    margin: 2rem 0;
}

.status-card {
    background: rgb(248 250 252 / 95%);
    border: 1px solid rgb(25 118 210 / 20%);
    border-radius: 12px;
    padding: 1.5rem;
    text-align: center;
    transition: all 0.3s ease;
}

.status-card:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgb(0 0 0 / 10%);
}

.status-icon {
    font-size: 3rem;
    margin-bottom: 0.75rem;
}

.status-icon.pending {
    color: rgb(251 191 36);
}

.status-icon.review {
    color: rgb(59 130 246);
}

.status-icon.approved {
    color: rgb(34 197 94);
}

.status-icon.rejected {
    color: rgb(239 68 68);
}

.status-card h4 {
    color: var(--text-dark);
    margin: 0.5rem 0;
}

.status-card p {
    color: var(--text-secondary);
    font-size: 0.9rem;
    margin: 0;
    text-align: center;
}

/* ============================================
   Tips Grid
   ============================================ */

.tips-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 1.5rem;
    margin: 2rem 0;
}

.tip-card {
    border-radius: 12px;
    padding: 1.5rem;
}

.tip-card.success {
    background: var(--success-bg);
    border: 1px solid var(--success-light);
    border-left: 4px solid var(--success-color);
}

.tip-card.danger {
    background: var(--danger-bg);
    border: 1px solid var(--danger-light);
    border-left: 4px solid var(--danger-color);
}

.tip-card h4 {
    margin-top: 0;
    margin-bottom: 1rem;
}

.tip-card.success h4 {
    color: var(--success-color);
}

.tip-card.danger h4 {
    color: var(--danger-color);
}

/* ============================================
   Device Instructions
   ============================================ */

.device-instructions {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 1.5rem;
    margin: 2rem 0;
}

.device-box {
    background: rgb(248 250 252 / 95%);
    border: 1px solid rgb(25 118 210 / 20%);
    border-radius: 12px;
    padding: 1.5rem;
}

.device-box h4 {
    color: var(--primary-color);
    margin-top: 0;
    margin-bottom: 1rem;
}

/* ============================================
   Actions Table
   ============================================ */

.actions-table {
    margin: 2rem 0;
    overflow-x: auto;
}

.actions-table table {
    width: 100%;
    border-collapse: collapse;
    background: white;
    border-radius: 12px;
    overflow: hidden;
    box-shadow: 0 2px 8px rgb(0 0 0 / 8%);
}

.actions-table thead {
    background: linear-gradient(135deg, var(--primary-color), var(--primary-dark));
    color: white;
}

.actions-table th {
    padding: 1rem;
    text-align: left;
    font-weight: 600;
}

.actions-table td {
    padding: 1rem;
    border-bottom: 1px solid rgb(0 0 0 / 5%);
    color: var(--text-dark);
}

.actions-table tbody tr:hover {
    background: rgb(248 250 252);
}

/* ============================================
   Math Examples
   ============================================ */

.math-examples {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 1.5rem;
    margin: 2rem 0;
}

.math-box {
    background: rgb(248 250 252 / 95%);
    border: 1px solid rgb(25 118 210 / 20%);
    border-radius: 12px;
    padding: 1.5rem;
}

.math-box h4 {
    color: var(--primary-color);
    margin-top: 0;
    margin-bottom: 1rem;
}

/* ============================================
   Error Solutions
   ============================================ */

.error-solutions {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
    margin: 2rem 0;
}

.error-box {
    background: rgb(254 242 242 / 95%);
    border: 1px solid rgb(239 68 68 / 30%);
    border-left: 4px solid rgb(239 68 68);
    border-radius: 12px;
    padding: 1.5rem;
}

.error-box h4 {
    color: rgb(239 68 68);
    margin-top: 0;
    margin-bottom: 1rem;
}

.error-box code {
    background: rgb(239 68 68 / 15%);
    color: rgb(153 27 27);
}

/* ============================================
   Benefits Grid
   ============================================ */

.benefits-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 1.5rem;
    margin: 2rem 0;
}

.benefit-card {
    background: rgb(248 250 252 / 95%);
    border: 1px solid rgb(25 118 210 / 20%);
    border-radius: 12px;
    padding: 1.5rem;
    text-align: center;
}

.benefit-icon {
    font-size: 3rem;
    margin-bottom: 1rem;
}

.benefit-card h4 {
    color: var(--primary-color);
    margin: 0.5rem 0 1rem 0;
}

.benefit-card ul {
    text-align: left;
}

/* ============================================
   Search Modes
   ============================================ */

.search-modes {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 1.5rem;
    margin: 2rem 0;
}

.search-mode {
    background: rgb(248 250 252 / 95%);
    border: 1px solid rgb(25 118 210 / 20%);
    border-radius: 12px;
    padding: 1.5rem;
}

.search-mode h4 {
    color: var(--primary-color);
    margin-top: 0;
    margin-bottom: 1rem;
}

/* ============================================
   Device Tips
   ============================================ */

.device-tips {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 1.5rem;
    margin: 2rem 0;
}

.device-tip {
    background: rgb(248 250 252 / 95%);
    border: 1px solid rgb(25 118 210 / 20%);
    border-radius: 12px;
    padding: 1.5rem;
}

.device-tip h4 {
    color: var(--primary-color);
    margin-top: 0;
    margin-bottom: 1rem;
}

/* ============================================
   FAQ List
   ============================================ */

.faq-list {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
    margin: 2rem 0;
}

.faq-item {
    background: rgb(248 250 252 / 95%);
    border: 1px solid rgb(25 118 210 / 20%);
    border-radius: 12px;
    padding: 1.5rem;
    transition: all 0.3s ease;
}

.faq-item:hover {
    border-color: var(--primary-color);
    box-shadow: 0 4px 12px rgb(25 118 210 / 15%);
}

.faq-item h3 {
    color: var(--primary-color);
    font-size: 1.2rem;
    margin-top: 0;
    margin-bottom: 0.75rem;
}

.faq-item p {
    margin-bottom: 0.5rem;
}

.faq-item .code-example {
    margin-top: 1rem;
}

/* ============================================
   Contact Section
   ============================================ */

.contact-section {
    background: linear-gradient(135deg, rgb(25 118 210 / 8%), rgb(25 118 210 / 15%));
    border-left: 4px solid var(--primary-color);
    border-radius: 12px;
    padding: 2rem;
    margin-top: 3rem;
    text-align: center;
}

.contact-section h3 {
    color: var(--primary-color);
    margin-top: 0;
    margin-bottom: 1rem;
}

.contact-section ul {
    list-style: none;
    padding: 0;
    margin: 1.5rem 0;
}

.contact-section li {
    margin-bottom: 0.75rem;
    color: var(--text-dark);
}

.contact-section p {
    color: var(--text-dark);
}

.contact-section a {
    color: var(--primary-color);
    text-decoration: none;
    font-weight: 600;
}

.contact-section a:hover {
    text-decoration: underline;
}

.thank-you {
    font-style: italic;
    color: var(--text-dark);
    margin-top: 1.5rem;
    margin-bottom: 0;
}

/* ============================================
   Scroll to Top Button
   ============================================ */

.scroll-top-btn {
    position: fixed;
    bottom: 30px;
    right: 30px;
    width: 50px;
    height: 50px;
    background: linear-gradient(135deg, var(--primary-color), var(--primary-dark));
    color: white;
    border: none;
    border-radius: 50%;
    font-size: 1.2rem;
    cursor: pointer;
    box-shadow: 0 4px 16px rgb(25 118 210 / 40%);
    opacity: 0;
    visibility: hidden;
    transform: translateY(20px);
    transition: all 0.3s ease;
    z-index: 1000;
}

.scroll-top-btn.show {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.scroll-top-btn:hover {
    transform: translateY(-4px);
    box-shadow: 0 6px 20px rgb(25 118 210 / 50%);
}

/* ============================================
   Responsive Design
   ============================================ */

/* Mobile First - Extra Small devices (< 576px) */
@media (width < 576px) {
    .docs-wrapper {
        grid-template-columns: 1fr;
        gap: 1rem;
        margin: 1rem auto;
    }
    
    .docs-sidebar {
        position: static;
        max-height: none;
        margin-bottom: 1rem;
        padding: 1rem;
    }
    
    .docs-content {
        padding: 1rem;
    }
    
    .docs-header {
        margin-bottom: 2rem;
        padding-bottom: 1.5rem;
    }
    
    .docs-header h1 {
        font-size: 1.6rem;
    }
    
    .docs-header .subtitle {
        font-size: 0.9rem;
    }
    
    .docs-section {
        margin-bottom: 2.5rem;
    }
    
    .docs-section h2 {
        font-size: 1.4rem;
    }
    
    .docs-section h3 {
        font-size: 1.2rem;
    }
    
    .docs-section h4 {
        font-size: 1.1rem;
    }
    
    .feature-grid {
        grid-template-columns: 1fr;
    }
    
    .step-box {
        flex-direction: column;
        text-align: center;
    }
    
    .step-number {
        margin: 0 auto;
    }
    
    .code-example pre {
        padding: 1rem;
        font-size: 0.85rem;
    }
    
    .actions-table {
        font-size: 0.85rem;
    }
    
    .actions-table th,
    .actions-table td {
        padding: 0.75rem 0.5rem;
    }
    
    .scroll-top-btn {
        bottom: 20px;
        right: 20px;
        width: 45px;
        height: 45px;
    }
}

/* Small devices (≥ 576px) */
@media (width >= 576px) {
    .docs-wrapper {
        grid-template-columns: 180px 1fr;
        gap: 1rem;
        margin: 1.5rem auto;
        max-width: 100%;
    }
    
    .docs-sidebar {
        position: sticky;
        top: 100px;
        width: 180px;
        max-height: calc(100vh - 120px);
        margin-bottom: 0;
        padding: 1rem;
    }
    
    .docs-content {
        padding: 1.5rem;
        width: 100%;
        min-width: 0;
    }
    
    .docs-header h1 {
        font-size: 2rem;
    }
    
    .docs-header .subtitle {
        font-size: 1rem;
    }
    
    .docs-section h2 {
        font-size: 1.6rem;
    }
    
    .docs-section h3 {
        font-size: 1.3rem;
    }
}

/* Medium devices (≥ 768px) */
@media (width >= 768px) {
    .docs-wrapper {
        grid-template-columns: 200px 1fr;
        gap: 1rem;
        margin: 1.5rem auto;
        max-width: 100%;
    }
    
    .docs-sidebar {
        position: sticky;
        top: 100px;
        width: 200px;
        max-height: calc(100vh - 120px);
        margin-bottom: 0;
        padding: 1rem;
    }
    
    .docs-content {
        padding: 1.5rem;
        width: 100%;
        min-width: 0;
    }
    
    .docs-header h1 {
        font-size: 2rem;
    }
    
    .docs-section h2 {
        font-size: 1.6rem;
    }
    
    .docs-section h3 {
        font-size: 1.3rem;
    }
}

/* Large devices (≥ 992px) */
@media (width >= 992px) {
    .docs-wrapper {
        grid-template-columns: 245px 1fr;
        gap: 1.5rem;
        margin: 2rem auto;
    }
    
    .docs-sidebar {
        position: sticky;
        top: 100px;
        width: 245px;
        max-height: calc(100vh - 120px);
        margin-bottom: 0;
        padding: 1.25rem;
    }
    
    .docs-content {
        padding: 2rem;
    }
    
    .docs-header h1 {
        font-size: 2.6rem;
    }
}

/* Extra Large devices (≥ 1200px) */
@media (width >= 1200px) {
    .docs-wrapper {
        grid-template-columns: minmax(240px, 260px) 1fr;
        gap: 2rem;
    }
    
    .docs-sidebar {
        padding: 1.5rem;
    }
    
    .docs-header h1 {
        font-size: 2.8rem;
    }
}

/* Extra Extra Large devices (≥ 1400px) */
@media (width >= 1400px) {
    .docs-wrapper {
        grid-template-columns: minmax(240px, 280px) 1fr;
        gap: 2rem;
    }
}

/* ============================================
   Print Styles
   ============================================ */

@media print {
    .docs-sidebar,
    .scroll-top-btn {
        display: none;
    }
    
    .docs-wrapper {
        grid-template-columns: 1fr;
    }
    
    .docs-content {
        box-shadow: none;
        border: none;
    }
    
    .docs-section {
        page-break-inside: avoid;
    }
}