/* Custom CSS for AlgoTrading Mastery */

:root {
    --primary-color: #2563eb;
    --secondary-color: #64748b;
    --success-color: #22c55e;
    --warning-color: #f59e0b;
    --danger-color: #ef4444;
    --light-bg: #f8fafc;
    --dark-bg: #1e293b;
    --border-color: #e2e8f0;
}

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background-color: #ffffff;
    color: #334155;
    line-height: 1.5;
}

/* Sticky Footer Layout */
html, body {
    height: 100%;
}

.min-vh-100 {
    min-height: 100vh !important;
}

main.flex-grow-1 {
    flex: 1 0 auto;
}

/* Navigation */
.navbar-brand {
    font-size: 1.5rem;
    font-weight: 700;
}

.navbar-nav .nav-link {
    font-weight: 500;
    transition: color 0.3s ease;
}

.navbar-nav .nav-link:hover {
    color: var(--primary-color) !important;
}

/* Hero Section */
.hero-section {
    background: linear-gradient(135deg, var(--light-bg) 0%, #ffffff 100%);
    padding: 4rem 0;
}

.hero-image img {
    border-radius: 15px;
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.1);
}

/* Feature Cards */
.feature-card {
    background: #ffffff;
    border-radius: 15px;
    padding: 2rem;
    text-align: center;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    border: 1px solid var(--border-color);
}

.feature-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.15);
}

.feature-icon {
    font-size: 3rem;
    color: var(--primary-color);
    margin-bottom: 1rem;
}

.feature-card h3 {
    color: #1e293b;
    margin-bottom: 1rem;
    font-weight: 600;
}

/* CTA Section */
.cta-section {
    background: var(--light-bg);
    padding: 4rem 0;
    margin-top: 4rem;
}

/* Tutorial Styles */
.tutorial-steps {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.step-card {
    background: #ffffff;
    border-radius: 15px;
    padding: 2rem;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.08);
    border: 1px solid var(--border-color);
    display: flex;
    align-items: center;
    gap: 2rem;
    transition: all 0.3s ease;
}

.step-card:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.12);
}

.step-card.completed {
    background: #f0f9ff;
    border-color: var(--success-color);
}

.step-number {
    width: 60px;
    height: 60px;
    border-radius: 50%;
    background: var(--primary-color);
    color: white;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: bold;
    font-size: 1.2rem;
    flex-shrink: 0;
}

.step-card.completed .step-number {
    background: var(--success-color);
}

.step-content {
    flex: 1;
}

.step-title a {
    color: #1e293b;
    text-decoration: none;
    font-weight: 600;
}

.step-title a:hover {
    color: var(--primary-color);
}

.step-description {
    color: var(--secondary-color);
    margin-bottom: 1rem;
}

/* Tutorial Step Page */
.step-header {
    text-align: center;
    padding: 2rem 0;
    border-bottom: 2px solid var(--border-color);
}

.step-badge {
    background: var(--primary-color);
    color: white;
    padding: 0.5rem 1rem;
    border-radius: 25px;
    font-size: 0.9rem;
    font-weight: 500;
}

.step-title {
    color: #1e293b;
    font-weight: 700;
    margin-top: 1rem;
}

.step-content {
    font-size: 1.1rem;
    line-height: 1.5;
}

.content-text {
    margin-bottom: 2rem;
}

.content-text h2, .content-text h3 {
    color: #1e293b;
    margin-top: 2rem;
    margin-bottom: 1rem;
}

.content-text p {
    margin-bottom: 1.5rem;
}

.content-text ul, .content-text ol {
    margin-bottom: 1.5rem;
    padding-left: 2rem;
}

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

/* Code Section */
.code-section {
    background: #f8fafc;
    border-radius: 10px;
    padding: 1.5rem;
    border: 1px solid var(--border-color);
}

.code-header {
    display: flex;
    justify-content: between;
    align-items: center;
    margin-bottom: 1rem;
}

.code-header h5 {
    margin: 0;
    color: #1e293b;
}

.copy-code-btn {
    margin-left: auto;
}

.code-container {
    background: #ffffff;
    border-radius: 8px;
    border: 1px solid var(--border-color);
    overflow: hidden;
}

.code-container pre {
    margin: 0;
    padding: 1.5rem;
    background: #ffffff;
    border-radius: 8px;
    overflow-x: auto;
}

.code-container code {
    font-family: 'Consolas', 'Monaco', 'Courier New', monospace;
    font-size: 0.9rem;
    line-height: 1.5;
}

/* Blog Styles */
.blog-card {
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.blog-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 15px 35px rgba(0, 0, 0, 0.1);
}

.post-meta {
    margin-bottom: 1rem;
}

.post-title {
    color: #1e293b;
    font-weight: 700;
    line-height: 1.3;
}

.post-content {
    font-size: 1.1rem;
    line-height: 1.5;
}

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

.post-content h2, .post-content h3 {
    color: #1e293b;
    margin-top: 2rem;
    margin-bottom: 1rem;
}

/* Enhanced Code Block Styles */
.post-content pre {
    position: relative;
    background: #f8fafc;
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 1.5rem;
    overflow-x: auto;
    margin: 1.5rem 0;
}

.post-content pre:hover .copy-btn {
    opacity: 1;
}

.post-content code {
    font-family: 'Consolas', 'Monaco', 'Courier New', monospace;
    font-size: 0.9rem;
    line-height: 1.5;
}

/* Copy Button Styles */
.copy-btn {
    position: absolute;
    top: 12px;
    right: 12px;
    background: rgba(37, 99, 235, 0.1);
    border: 1px solid var(--primary-color);
    border-radius: 6px;
    padding: 8px 12px;
    font-size: 0.75rem;
    color: var(--primary-color);
    cursor: pointer;
    transition: all 0.3s ease;
    opacity: 0;
    display: flex;
    align-items: center;
    gap: 4px;
    font-weight: 500;
}

.copy-btn:hover {
    background: var(--primary-color);
    color: white;
    transform: translateY(-1px);
}

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

.copy-btn i {
    font-size: 0.75rem;
}

/* Prism.js Theme Overrides */
pre[class*="language-"] {
    background: #f8fafc !important;
    border: 1px solid var(--border-color) !important;
    border-radius: 8px !important;
    padding: 1.5rem !important;
    margin: 1.5rem 0 !important;
    overflow: auto !important;
}

code[class*="language-"] {
    background: none !important;
    font-family: 'Consolas', 'Monaco', 'Courier New', monospace !important;
    font-size: 0.9rem !important;
    line-height: 1.5 !important;
}

/* Python Syntax Highlighting */
.token.keyword {
    color: #7c3aed !important;
    font-weight: 600 !important;
}

.token.string {
    color: #059669 !important;
}

.token.comment {
    color: #6b7280 !important;
    font-style: italic !important;
}

.token.function {
    color: #dc2626 !important;
}

.token.number {
    color: #ea580c !important;
}

.token.operator {
    color: #4f46e5 !important;
}

.token.punctuation {
    color: #6b7280 !important;
}

.token.builtin {
    color: #7c2d12 !important;
}

/* Tutorial Navigation Styles */
.tutorial-navigation {
    margin-top: 3rem;
    padding: 2rem 0;
    border-top: 1px solid var(--border-color);
}

.tutorial-navigation .btn {
    min-height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 500;
    margin-bottom: 1rem;
}

.lesson-counter {
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 48px;
    font-size: 1rem;
    font-weight: 500;
    margin-bottom: 1rem;
}

/* Mobile-specific styles */
@media (max-width: 575.98px) {
    .tutorial-navigation {
        margin-top: 2rem;
        padding: 1.5rem 0;
    }
    
    .tutorial-navigation .btn {
        font-size: 0.95rem;
        padding: 0.75rem 1rem;
    }
    
    .lesson-counter {
        margin-bottom: 0.5rem;
        font-size: 0.9rem;
    }
}

/* Quill Editor Code Block Styles */
.ql-syntax {
    position: relative !important;
    background: #f8fafc !important;
    border: 1px solid var(--border-color) !important;
    border-radius: 8px !important;
    padding: 1.5rem !important;
    margin: 1.5rem 0 !important;
    overflow: auto !important;
    font-family: 'Consolas', 'Monaco', 'Courier New', monospace !important;
    font-size: 0.9rem !important;
    line-height: 1.5 !important;
}

.ql-syntax:hover .copy-btn {
    opacity: 1 !important;
}

/* Highlight.js Python styling (used by Quill) */
.hljs-keyword {
    color: #7c3aed !important;
    font-weight: 600 !important;
}

.hljs-string {
    color: #059669 !important;
}

.hljs-comment {
    color: #6b7280 !important;
    font-style: italic !important;
}

.hljs-function {
    color: #dc2626 !important;
}

.hljs-number {
    color: #ea580c !important;
}

.hljs-operator {
    color: #4f46e5 !important;
}

.hljs-punctuation {
    color: #6b7280 !important;
}

.hljs-built_in {
    color: #7c2d12 !important;
}

.post-content blockquote {
    border-left: 4px solid var(--primary-color);
    background: #f8fafc;
    padding: 1rem 1.5rem;
    margin: 1.5rem 0;
    border-radius: 0 8px 8px 0;
}

/* Category Filter */
.category-filter {
    margin-bottom: 2rem;
}

.category-filter .btn {
    margin: 0.25rem;
    border-radius: 25px;
}

.category-filter .btn.active {
    background: var(--primary-color);
    border-color: var(--primary-color);
    color: white;
}

/* Profile Page */
.border-left-primary {
    border-left: 4px solid var(--primary-color);
}

/* Progress Bars */
.progress {
    background: #e2e8f0;
    border-radius: 10px;
}

.progress-bar {
    border-radius: 10px;
    transition: width 0.3s ease;
}

/* Badges */
.badge {
    font-size: 0.75rem;
    font-weight: 500;
    padding: 0.5rem 0.75rem;
    border-radius: 6px;
}

/* Buttons */
.btn {
    font-weight: 500;
    padding: 0.5rem 1.5rem;
    border-radius: 8px;
    transition: all 0.3s ease;
}

.btn-primary {
    background: var(--primary-color);
    border-color: var(--primary-color);
}

.btn-primary:hover {
    background: #1d4ed8;
    border-color: #1d4ed8;
    transform: translateY(-1px);
}

.btn-outline-primary {
    color: var(--primary-color);
    border-color: var(--primary-color);
}

.btn-outline-primary:hover {
    background: var(--primary-color);
    border-color: var(--primary-color);
    transform: translateY(-1px);
}

/* Cards */
.card {
    border: 1px solid var(--border-color);
    border-radius: 15px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
    transition: box-shadow 0.3s ease;
}

.card:hover {
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.1);
}

.card-header {
    background: var(--light-bg);
    border-bottom: 1px solid var(--border-color);
    border-radius: 15px 15px 0 0;
    font-weight: 600;
}

/* Footer */
footer {
    background: var(--dark-bg) !important;
    color: #cbd5e1;
}

footer h5 {
    color: #ffffff;
    font-weight: 600;
}

footer a {
    color: #cbd5e1;
    text-decoration: none;
    transition: color 0.3s ease;
}

footer a:hover {
    color: #ffffff;
}

/* Responsive Design */
@media (max-width: 768px) {
    .hero-section {
        padding: 2rem 0;
    }
    
    .hero-section h1 {
        font-size: 2.5rem;
    }
    
    .step-card {
        flex-direction: column;
        text-align: center;
        gap: 1rem;
    }
    
    .step-number {
        width: 50px;
        height: 50px;
        font-size: 1rem;
    }
    
    .code-header {
        flex-direction: column;
        gap: 1rem;
        align-items: flex-start;
    }
    
    .copy-code-btn {
        margin-left: 0;
    }
}

/* Animations */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.fade-in-up {
    animation: fadeInUp 0.6s ease-out;
}

/* Utility Classes */
.text-primary {
    color: var(--primary-color) !important;
}

.bg-primary {
    background-color: var(--primary-color) !important;
}

.min-vh-50 {
    min-height: 50vh;
}

/* Syntax Highlighting Override */
pre[class*="language-"] {
    background: #ffffff;
    border: 1px solid var(--border-color);
    border-radius: 8px;
}

code[class*="language-"] {
    font-family: 'Consolas', 'Monaco', 'Courier New', monospace;
}