/* Tutorial Common Styles - Shared across all language tutorials */

/* Base Tutorial Layout */
body.tutorial-page {
    margin: 0;
    padding: 0;
    background: #0a0f1a;
    color: #ffffff;
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
}

/* Tutorial Header */
.tutorial-header {
    background: linear-gradient(135deg, #1a1f35 0%, #0a0f1a 100%);
    padding: 1rem 2rem;
    border-bottom: 2px solid rgba(0, 255, 221, 0.2);
    position: sticky;
    top: 0;
    z-index: 100;
}

.header-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    max-width: 1400px;
    margin: 0 auto;
}

.logo-section {
    display: flex;
    align-items: center;
}

.logo-img {
    height: 40px;
    transition: transform 0.2s ease;
}

.logo-img:hover {
    transform: scale(1.05);
}

.main-nav {
    display: flex;
    gap: 2rem;
}

.nav-item {
    color: #ffffff;
    text-decoration: none;
    padding: 0.5rem 1rem;
    border-radius: 4px;
    transition: all 0.2s ease;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.nav-item:hover {
    background: rgba(0, 255, 221, 0.1);
    color: #00FFDD;
}

/* Tutorial Container Layout */
.tutorial-container {
    display: grid;
    grid-template-columns: 300px 1fr;
    max-width: 1400px;
    margin: 0 auto;
    min-height: calc(100vh - 80px);
}

/* Tutorial Sidebar */
.tutorial-sidebar {
    background: #141b2d;
    border-right: 1px solid rgba(0, 255, 221, 0.1);
    padding: 2rem 1rem;
    overflow-y: auto;
    position: sticky;
    top: 80px;
    height: calc(100vh - 80px);
}

/* Content Navigation Styles */
.content-navigation {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.nav-section {
    margin-bottom: 1rem;
}

.nav-category-title {
    color: #00FFDD;
    font-size: 0.9rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin: 0 0 0.75rem 0;
    padding: 0.5rem;
    border-bottom: 1px solid rgba(0, 255, 221, 0.2);
}

.nav-section ul {
    list-style: none;
    padding: 0;
    margin: 0;
}

.nav-section li {
    margin: 0.25rem 0;
}

.nav-section a {
    display: block;
    color: #b8c5d6;
    text-decoration: none;
    padding: 0.5rem 0.75rem;
    border-radius: 4px;
    transition: all 0.2s ease;
    font-size: 0.95rem;
}

.nav-section a:hover {
    background: rgba(0, 255, 221, 0.1);
    color: #00FFDD;
    transform: translateX(4px);
}

.nav-section a.active {
    background: rgba(0, 255, 221, 0.15);
    color: #00FFDD;
    font-weight: 600;
    border-left: 3px solid #00FFDD;
}

/* Subsections */
.nav-subsections {
    list-style: none;
    padding-left: 1rem;
    margin-top: 0.5rem;
}

.nav-subsections li {
    margin: 0.25rem 0;
}

.nav-subsections a {
    font-size: 0.85rem;
    color: #8a9ab0;
    padding: 0.35rem 0.5rem;
}

.nav-subsections a:hover {
    color: #00FFDD;
}

/* Nested subsections for h3 headings under h2 */
.nav-subsections-nested {
    list-style: none;
    padding-left: 1rem;
    margin-top: 0.25rem;
}

.nav-subsections-nested li {
    margin: 0.2rem 0;
}

.nav-subsections-nested a {
    font-size: 0.8rem;
    color: #6a7a90;
    padding: 0.25rem 0.5rem;
}

.nav-subsections-nested a:hover {
    color: #00FFDD;
}

/* TOC Link Styles */
.toc-link {
    display: block;
    position: relative;
    transition: all 0.2s ease;
}

.toc-link.toc-level-2 {
    font-weight: 500;
}

.toc-link.toc-level-3 {
    font-weight: 400;
    opacity: 0.9;
}

/* Highlight effect when scrolling to a heading */
.toc-target-highlight {
    animation: highlightPulse 2s ease;
}

@keyframes highlightPulse {
    0% {
        background: transparent;
    }
    10% {
        background: rgba(0, 255, 221, 0.15);
        box-shadow: 0 0 20px rgba(0, 255, 221, 0.3);
    }
    100% {
        background: transparent;
        box-shadow: none;
    }
}

/* Tutorial Content Area */
.tutorial-content {
    padding: 2rem;
    overflow-y: auto;
}

#main-content {
    max-width: 900px;
}

/* Copy Code Button Styles */
.copy-code-btn {
    position: absolute;
    top: 0.5rem;
    right: 0.5rem;
    background: rgba(0, 255, 221, 0.1);
    color: #00FFDD;
    border: 1px solid rgba(0, 255, 221, 0.3);
    padding: 0.4rem 0.8rem;
    border-radius: 4px;
    cursor: pointer;
    font-size: 0.85rem;
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    transition: all 0.2s ease;
    z-index: 10;
    display: flex;
    align-items: center;
    gap: 0.4rem;
}

.copy-code-btn:hover:not(:disabled) {
    background: rgba(0, 255, 221, 0.2);
    border-color: #00FFDD;
    transform: translateY(-1px);
    box-shadow: 0 2px 8px rgba(0, 255, 221, 0.2);
}

.copy-code-btn:active:not(:disabled) {
    transform: scale(0.95);
}

.copy-code-btn:disabled {
    cursor: not-allowed;
    opacity: 0.9;
}

/* Copy Success State */
.copy-code-btn.copy-success {
    background: rgba(76, 175, 80, 0.2);
    color: #4caf50;
    border-color: rgba(76, 175, 80, 0.5);
    animation: successPulse 0.3s ease;
}

@keyframes successPulse {
    0% {
        transform: scale(1);
    }
    50% {
        transform: scale(1.05);
    }
    100% {
        transform: scale(1);
    }
}

/* Copy Error State */
.copy-code-btn.copy-error {
    background: rgba(244, 67, 54, 0.2);
    color: #f44336;
    border-color: rgba(244, 67, 54, 0.5);
    animation: errorShake 0.3s ease;
}

@keyframes errorShake {
    0%, 100% {
        transform: translateX(0);
    }
    25% {
        transform: translateX(-4px);
    }
    75% {
        transform: translateX(4px);
    }
}

/* Icon styles within copy button */
.copy-code-btn i {
    font-size: 0.9rem;
}

/* Error Message Styles */
.error-message {
    background: rgba(255, 68, 68, 0.1);
    border: 1px solid rgba(255, 68, 68, 0.3);
    border-radius: 8px;
    padding: 1.5rem;
    margin: 2rem 0;
    color: #ff6b6b;
}

.error-message h1 {
    color: #ff6b6b;
    margin-top: 0;
}

/* Loading State */
.loading-spinner {
    display: inline-block;
    width: 40px;
    height: 40px;
    border: 4px solid rgba(0, 255, 221, 0.1);
    border-top-color: #00FFDD;
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

@keyframes spin {
    to { transform: rotate(360deg); }
}

.loading-container {
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 200px;
}

/* Responsive Design */
@media (max-width: 1024px) {
    .tutorial-container {
        grid-template-columns: 250px 1fr;
    }
    
    .tutorial-sidebar {
        padding: 1.5rem 0.75rem;
    }
}

@media (max-width: 768px) {
    .tutorial-container {
        grid-template-columns: 1fr;
    }
    
    .tutorial-sidebar {
        position: static;
        height: auto;
        border-right: none;
        border-bottom: 1px solid rgba(0, 255, 221, 0.1);
    }
    
    .tutorial-content {
        padding: 1.5rem 1rem;
    }
    
    .main-nav {
        gap: 1rem;
    }
    
    .nav-item {
        padding: 0.4rem 0.8rem;
        font-size: 0.9rem;
    }
    
    .header-content {
        padding: 0 1rem;
    }
}

@media (max-width: 480px) {
    .tutorial-header {
        padding: 0.75rem 1rem;
    }
    
    .logo-img {
        height: 32px;
    }
    
    .main-nav {
        gap: 0.5rem;
    }
    
    .nav-item span {
        display: none;
    }
    
    .tutorial-content {
        padding: 1rem;
    }
}

/* Language-Specific Overrides */
/* Use body classes like .tutorial-python, .tutorial-java, .tutorial-javascript */
/* to apply language-specific styling without affecting other tutorials */

/* Example:
body.tutorial-python .tutorial-header {
    border-bottom-color: rgba(55, 118, 171, 0.3);
}

body.tutorial-java .tutorial-header {
    border-bottom-color: rgba(244, 67, 54, 0.3);
}

body.tutorial-javascript .tutorial-header {
    border-bottom-color: rgba(247, 223, 30, 0.3);
}
*/