/* ====================================
   TUTORIAL STYLES
   ==================================== */

/* Tutorial Hero */
.tutorial-hero {
    padding: var(--spacing-xl) 0;
    background: linear-gradient(135deg, rgba(102, 126, 234, 0.1) 0%, rgba(118, 75, 162, 0.1) 100%);
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.tutorial-hero-content {
    text-align: center;
    max-width: 800px;
    margin: 0 auto;
}

.tech-badge {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-xs);
    padding: var(--spacing-xs) var(--spacing-md);
    border-radius: 50px;
    font-size: 0.875rem;
    font-weight: 600;
    margin-bottom: var(--spacing-md);
    animation: fadeInDown 0.6s ease;
}

.tech-badge-icon {
    font-size: 1.5rem;
}

.tech-badge-html {
    background: linear-gradient(135deg, rgba(227, 79, 38, 0.2) 0%, rgba(227, 79, 38, 0.1) 100%);
    border: 1px solid rgba(227, 79, 38, 0.3);
    color: #ff8a65;
}

.tech-badge-css {
    background: linear-gradient(135deg, rgba(21, 114, 182, 0.2) 0%, rgba(21, 114, 182, 0.1) 100%);
    border: 1px solid rgba(21, 114, 182, 0.3);
    color: #64b5f6;
}

.tech-badge-js {
    background: linear-gradient(135deg, rgba(247, 223, 30, 0.2) 0%, rgba(247, 223, 30, 0.1) 100%);
    border: 1px solid rgba(247, 223, 30, 0.3);
    color: #ffd54f;
}

.tech-badge-react {
    background: linear-gradient(135deg, rgba(97, 218, 251, 0.2) 0%, rgba(97, 218, 251, 0.1) 100%);
    border: 1px solid rgba(97, 218, 251, 0.3);
    color: #81d4fa;
}

.tutorial-title {
    font-size: 3rem;
    font-weight: 900;
    margin-bottom: var(--spacing-md);
    background: linear-gradient(135deg, #ffffff 0%, #a0aec0 100%);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    animation: fadeInUp 0.6s ease 0.2s backwards;
}

.tutorial-description {
    font-size: 1.125rem;
    color: var(--text-secondary);
    animation: fadeInUp 0.6s ease 0.4s backwards;
}

/* Tutorial Layout */
.tutorial-content {
    padding: var(--spacing-2xl) 0;
}

.tutorial-layout {
    display: grid;
    grid-template-columns: 250px 1fr;
    gap: var(--spacing-2xl);
    max-width: 1200px;
    margin: 0 auto;
}

/* Sidebar */
.tutorial-sidebar {
    position: relative;
}

.sidebar-sticky {
    position: sticky;
    top: 100px;
}

.sidebar-title {
    font-size: 0.875rem;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.1em;
    margin-bottom: var(--spacing-md);
    font-weight: 700;
}

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

.sidebar-link {
    display: block;
    padding: var(--spacing-xs) var(--spacing-md);
    color: var(--text-secondary);
    text-decoration: none;
    border-radius: var(--radius-sm);
    border-left: 2px solid transparent;
    transition: all var(--transition-fast);
    font-size: 0.9375rem;
}

.sidebar-link:hover {
    background: rgba(255, 255, 255, 0.05);
    color: var(--text-primary);
    border-left-color: rgba(102, 126, 234, 0.3);
}

.sidebar-link.active {
    background: rgba(102, 126, 234, 0.1);
    color: var(--text-primary);
    border-left-color: #667eea;
    font-weight: 600;
}

/* Main Content */
.tutorial-main {
    max-width: 800px;
}

.tutorial-section {
    margin-bottom: var(--spacing-2xl);
    padding-bottom: var(--spacing-2xl);
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.tutorial-section:last-of-type {
    border-bottom: none;
}

.section-heading {
    font-size: 2rem;
    font-weight: 800;
    margin-bottom: var(--spacing-md);
    color: var(--text-primary);
    position: relative;
    padding-bottom: var(--spacing-sm);
}

.section-heading::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 60px;
    height: 3px;
    background: var(--primary-gradient);
    border-radius: 2px;
}

.text-content {
    color: var(--text-secondary);
    line-height: 1.8;
    margin-bottom: var(--spacing-md);
    font-size: 1.0625rem;
}

.text-content code {
    background: rgba(102, 126, 234, 0.1);
    color: #a5b4fc;
    padding: 0.125rem 0.5rem;
    border-radius: 0.25rem;
    font-family: 'Monaco', 'Menlo', 'Courier New', monospace;
    font-size: 0.9em;
}

/* Info Boxes */
.info-box {
    display: flex;
    gap: var(--spacing-md);
    padding: var(--spacing-md);
    border-radius: var(--radius-md);
    margin-bottom: var(--spacing-md);
    border-left: 4px solid;
    background: rgba(255, 255, 255, 0.03);
}

.info-box-icon {
    font-size: 2rem;
    flex-shrink: 0;
}

.info-box-content h4 {
    margin-bottom: var(--spacing-xs);
    font-weight: 700;
}

.info-box-content p,
.info-box-content ul {
    color: var(--text-secondary);
    line-height: 1.6;
}

.info-box-content ul {
    margin-left: var(--spacing-md);
    margin-top: var(--spacing-xs);
}

.info-box-content li {
    margin-bottom: 0.25rem;
}

.info-box-primary {
    border-left-color: #667eea;
}

.info-box-success {
    border-left-color: #43e97b;
}

.info-box-warning {
    border-left-color: #ffd54f;
}

.info-box-danger {
    border-left-color: #f5576c;
}

/* Code Blocks */
.code-block {
    background: var(--bg-card);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: var(--radius-md);
    overflow: hidden;
    margin-bottom: var(--spacing-md);
}

.code-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--spacing-sm) var(--spacing-md);
    background: rgba(0, 0, 0, 0.2);
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.code-language {
    font-size: 0.75rem;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    font-weight: 600;
}

.copy-btn {
    padding: 0.375rem 0.75rem;
    background: rgba(102, 126, 234, 0.2);
    border: 1px solid rgba(102, 126, 234, 0.3);
    color: #a5b4fc;
    border-radius: var(--radius-sm);
    font-size: 0.8125rem;
    font-weight: 600;
    cursor: pointer;
    transition: all var(--transition-fast);
}

.copy-btn:hover {
    background: rgba(102, 126, 234, 0.3);
    border-color: rgba(102, 126, 234, 0.5);
    transform: translateY(-1px);
}

.code-block pre {
    margin: 0;
    padding: var(--spacing-md);
    overflow-x: auto;
}

.code-block code {
    font-family: 'Monaco', 'Menlo', 'Courier New', monospace;
    font-size: 0.875rem;
    line-height: 1.6;
    color: #e0e7ff;
}

.code-inline {
    background: var(--bg-card);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: var(--radius-sm);
    padding: var(--spacing-xs);
    margin-top: var(--spacing-xs);
}

.code-inline code {
    font-family: 'Monaco', 'Menlo', 'Courier New', monospace;
    font-size: 0.8125rem;
    color: #a5b4fc;
}

/* Grids */
.grid-2 {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-md);
}

.feature-box {
    padding: var(--spacing-md);
    background: var(--bg-card);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: var(--radius-md);
    transition: all var(--transition-normal);
}

.feature-box:hover {
    background: var(--bg-card-hover);
    border-color: rgba(102, 126, 234, 0.3);
    transform: translateY(-2px);
}

.feature-box h4 {
    margin-bottom: var(--spacing-xs);
    color: #a5b4fc;
    font-family: 'Monaco', 'Menlo', monospace;
}

.feature-box p {
    color: var(--text-secondary);
    font-size: 0.875rem;
}

/* API Cards */
.api-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-md);
}

.api-card {
    padding: var(--spacing-lg);
    background: var(--bg-card);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: var(--radius-md);
    transition: all var(--transition-normal);
}

.api-card:hover {
    background: var(--bg-card-hover);
    border-color: rgba(102, 126, 234, 0.3);
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
}

.api-icon {
    font-size: 2.5rem;
    margin-bottom: var(--spacing-sm);
}

.api-card h4 {
    margin-bottom: var(--spacing-xs);
    font-weight: 700;
}

.api-card p {
    color: var(--text-secondary);
    font-size: 0.9375rem;
    margin-bottom: var(--spacing-sm);
}

/* Tutorial Navigation */
.tutorial-navigation {
    display: flex;
    justify-content: space-between;
    gap: var(--spacing-md);
    margin-top: var(--spacing-2xl);
    padding-top: var(--spacing-2xl);
    border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.nav-btn {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-md) var(--spacing-lg);
    background: var(--bg-card);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: var(--radius-md);
    color: var(--text-primary);
    text-decoration: none;
    transition: all var(--transition-normal);
    font-weight: 600;
}

.nav-btn:hover {
    background: var(--bg-card-hover);
    border-color: rgba(102, 126, 234, 0.3);
    transform: translateY(-2px);
}

.nav-btn-prev .arrow {
    order: -1;
}

.nav-btn .arrow {
    transition: transform var(--transition-normal);
}

.nav-btn-prev:hover .arrow {
    transform: translateX(-5px);
}

.nav-btn-next:hover .arrow {
    transform: translateX(5px);
}

/* Cheat Sheet Styles */
.cheat-section {
    margin-bottom: var(--spacing-2xl);
}

.cheat-section-title {
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: var(--spacing-md);
    color: var(--text-primary);
}

.cheat-grid {
    display: grid;
    gap: var(--spacing-md);
}

.cheat-item {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-md);
    padding: var(--spacing-md);
    background: var(--bg-card);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: var(--radius-md);
    transition: all var(--transition-fast);
}

.cheat-item:hover {
    background: var(--bg-card-hover);
    border-color: rgba(102, 126, 234, 0.2);
}

.cheat-label {
    font-weight: 600;
    color: var(--text-primary);
}

.cheat-code {
    font-family: 'Monaco', 'Menlo', monospace;
    color: #a5b4fc;
    background: rgba(0, 0, 0, 0.2);
    padding: 0.25rem 0.5rem;
    border-radius: 0.25rem;
    font-size: 0.875rem;
}

/* Responsive */
@media (max-width: 1024px) {
    .tutorial-layout {
        grid-template-columns: 200px 1fr;
        gap: var(--spacing-lg);
    }
}

@media (max-width: 768px) {
    .tutorial-layout {
        grid-template-columns: 1fr;
        gap: var(--spacing-lg);
    }

    .tutorial-sidebar {
        display: block;
        position: sticky;
        top: 70px;
        z-index: 100;
        background: var(--bg-dark);
        margin: 0 calc(-1 * var(--spacing-md));
        padding: var(--spacing-sm) var(--spacing-md);
        border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    }

    .sidebar-sticky {
        position: relative;
        top: 0;
    }

    .sidebar-title {
        display: none;
    }

    .sidebar-nav {
        flex-direction: row;
        overflow-x: auto;
        padding-bottom: var(--spacing-xs);
        scrollbar-width: none;
        /* Firefox */
        -ms-overflow-style: none;
        /* IE 10+ */
    }

    .sidebar-nav::-webkit-scrollbar {
        display: none;
        /* WebKit */
    }

    .sidebar-link {
        white-space: nowrap;
        padding: var(--spacing-xs) var(--spacing-sm);
        border-left: none;
        border-bottom: 2px solid transparent;
    }

    .sidebar-link.active {
        border-left-color: transparent;
        border-bottom-color: #667eea;
    }

    .tutorial-title {
        font-size: clamp(2rem, 8vw, 3rem);
    }

    .section-heading {
        font-size: 1.75rem;
    }

    .tutorial-navigation {
        flex-direction: column;
        gap: var(--spacing-sm);
    }

    .nav-btn {
        width: 100%;
        justify-content: center;
    }

    .grid-2,
    .api-grid {
        grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    }

    .cheat-item {
        grid-template-columns: 1fr;
        gap: var(--spacing-xs);
    }
}

@media (max-width: 480px) {
    .tutorial-title {
        font-size: 1.75rem;
    }

    .section-heading {
        font-size: 1.25rem;
    }

    .info-box {
        flex-direction: column;
    }
}