.tutorials-header {
    padding: 150px 0 60px;
    text-align: center;
}

.tutorials-header-content {
    max-width: 700px;
    margin: 0 auto;
}

.tutorials-icon {
    width: 80px;
    height: 80px;
    background: linear-gradient(135deg, rgba(255, 255, 255, 0.1), rgba(255, 255, 255, 0.05));
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 24px;
    color: #fff;
}

.tutorials-header .page-title {
    font-size: 2.5rem;
    font-weight: 800;
    margin-bottom: 16px;
}

.tutorials-header .page-subtitle {
    font-size: 1.1rem;
    color: #888;
    max-width: 500px;
    margin: 0 auto;
}

.tutorials-content {
    padding: 60px 0 150px;
}

.tutorials-layout {
    display: grid;
    grid-template-columns: 280px 1fr;
    gap: 60px;
    align-items: flex-start;
}

.tutorial-toc {
    position: sticky;
    top: 100px;
    background: linear-gradient(135deg, rgba(255, 255, 255, 0.05), rgba(255, 255, 255, 0.02));
    border: 1px solid rgba(255, 255, 255, 0.08);
    border-radius: 16px;
    padding: 24px;
}

.toc-header {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 20px;
    padding-bottom: 16px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.08);
    color: #fff;
}

.toc-header h3 {
    font-size: 1rem;
    font-weight: 600;
    margin: 0;
}

.toc-list {
    list-style: none;
    padding: 0;
    margin: 0;
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.toc-link {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 10px 12px;
    color: #888;
    text-decoration: none;
    font-size: 0.9rem;
    border-radius: 8px;
    transition: all 0.2s ease;
}

.toc-link svg {
    opacity: 0;
    transform: translateX(-5px);
    transition: all 0.2s ease;
    flex-shrink: 0;
}

.toc-link:hover {
    color: #fff;
    background: rgba(255, 255, 255, 0.05);
}

.toc-link:hover svg {
    opacity: 0.5;
    transform: translateX(0);
}

.toc-link.active {
    color: #fff;
    background: rgba(255, 255, 255, 0.08);
}

.toc-link.active svg {
    opacity: 1;
    transform: translateX(0);
}

.toc-progress {
    margin-top: 24px;
    padding-top: 20px;
    border-top: 1px solid rgba(255, 255, 255, 0.08);
}

.progress-bar {
    height: 4px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 2px;
    overflow: hidden;
    margin-bottom: 10px;
}

.progress-fill {
    height: 100%;
    background: linear-gradient(90deg, #fff, #888);
    border-radius: 2px;
    width: 0%;
    transition: width 0.3s ease;
}

.progress-text {
    font-size: 0.75rem;
    color: #666;
}

.tutorials-main {
    max-width: 800px;
}

.tutorial-section {
    margin-bottom: 80px;
    scroll-margin-top: 150px;
}

.tutorial-section:last-child {
    margin-bottom: 0;
}

.section-header {
    display: flex;
    align-items: center;
    gap: 16px;
    margin-bottom: 20px;
}

.section-number {
    font-size: 0.875rem;
    font-weight: 700;
    color: #444;
    font-family: monospace;
}

.section-header h2 {
    font-size: 1.75rem;
    font-weight: 700;
    color: #fff;
    margin: 0;
}

.section-intro {
    font-size: 1.05rem;
    color: #888;
    line-height: 1.7;
    margin-bottom: 32px;
}

.section-intro a {
    color: #fff;
    text-decoration: underline;
    text-underline-offset: 3px;
}

.section-intro a:hover {
    color: #ccc;
}

.tutorial-steps {
    display: flex;
    flex-direction: column;
    gap: 24px;
    margin-bottom: 32px;
}

.tutorial-step {
    display: flex;
    gap: 20px;
    padding: 24px;
    background: linear-gradient(135deg, rgba(255, 255, 255, 0.04), rgba(255, 255, 255, 0.01));
    border: 1px solid rgba(255, 255, 255, 0.06);
    border-radius: 16px;
    transition: all 0.3s ease;
}

.tutorial-step:hover {
    border-color: rgba(255, 255, 255, 0.12);
    transform: translateX(4px);
}

.step-number {
    width: 44px;
    height: 44px;
    background: linear-gradient(135deg, rgba(255, 255, 255, 0.1), rgba(255, 255, 255, 0.05));
    border: 1px solid rgba(255, 255, 255, 0.15);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1rem;
    font-weight: 700;
    color: #fff;
    flex-shrink: 0;
}

.step-content h3 {
    font-size: 1.1rem;
    font-weight: 600;
    color: #fff;
    margin-bottom: 8px;
}

.step-content p {
    font-size: 0.95rem;
    color: #888;
    line-height: 1.6;
    margin: 0;
}

.step-content a {
    color: #fff;
    text-decoration: underline;
    text-underline-offset: 3px;
}

.step-content strong {
    color: #ccc;
}

.step-list {
    margin-top: 12px;
    padding-left: 20px;
    list-style: disc;
}

.step-list li {
    font-size: 0.9rem;
    color: #888;
    margin-bottom: 6px;
    line-height: 1.5;
}

.troubleshooting-steps .step-number {
    background: linear-gradient(135deg, rgba(239, 68, 68, 0.2), rgba(239, 68, 68, 0.1));
    border-color: rgba(239, 68, 68, 0.3);
    color: #f87171;
}

.troubleshooting-steps .step-number svg {
    width: 20px;
    height: 20px;
}

.tutorial-note {
    display: flex;
    gap: 16px;
    padding: 20px 24px;
    border-radius: 16px;
    margin-top: 24px;
}

.note-icon {
    width: 48px;
    height: 48px;
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.note-content {
    flex: 1;
}

.note-content h4 {
    font-size: 1rem;
    font-weight: 600;
    margin-bottom: 8px;
}

.note-content p {
    font-size: 0.9rem;
    line-height: 1.6;
    margin: 0;
}

.note-content p+p {
    margin-top: 12px;
}

.note-content a {
    text-decoration: underline;
    text-underline-offset: 3px;
}

.note-content ul {
    margin-top: 12px;
    padding-left: 20px;
    list-style: disc;
}

.note-content li {
    font-size: 0.9rem;
    margin-bottom: 6px;
    line-height: 1.5;
}

.tutorial-note.warning {
    background: linear-gradient(135deg, rgba(234, 179, 8, 0.1), rgba(234, 179, 8, 0.05));
    border: 1px solid rgba(234, 179, 8, 0.2);
}

.tutorial-note.warning .note-icon {
    background: rgba(234, 179, 8, 0.15);
    color: #fbbf24;
}

.tutorial-note.warning .note-content h4 {
    color: #fbbf24;
}

.tutorial-note.warning .note-content p,
.tutorial-note.warning .note-content li {
    color: #a3a3a3;
}

.tutorial-note.info {
    background: linear-gradient(135deg, rgba(59, 130, 246, 0.1), rgba(59, 130, 246, 0.05));
    border: 1px solid rgba(59, 130, 246, 0.2);
}

.tutorial-note.info .note-icon {
    background: rgba(59, 130, 246, 0.15);
    color: #60a5fa;
}

.tutorial-note.info .note-content h4 {
    color: #60a5fa;
}

.tutorial-note.info .note-content p {
    color: #a3a3a3;
}

.tutorial-note.hotkeys {
    background: linear-gradient(135deg, rgba(139, 92, 246, 0.1), rgba(139, 92, 246, 0.05));
    border: 1px solid rgba(139, 92, 246, 0.2);
}

.tutorial-note.hotkeys .note-icon {
    background: rgba(139, 92, 246, 0.15);
    color: #a78bfa;
}

.tutorial-note.hotkeys .note-content h4 {
    color: #a78bfa;
}

.tutorial-note.hotkeys .note-content p {
    color: #a3a3a3;
}

.hotkey-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 12px;
    margin: 16px 0;
}

.hotkey-item {
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.hotkey-item kbd {
    display: inline-block;
    padding: 4px 8px;
    background: rgba(0, 0, 0, 0.3);
    border: 1px solid rgba(255, 255, 255, 0.15);
    border-radius: 6px;
    font-family: monospace;
    font-size: 0.8rem;
    color: #fff;
    margin-right: 4px;
}

.hotkey-item span {
    font-size: 0.85rem;
    color: #888;
}

.hotkey-note {
    font-size: 0.85rem !important;
    font-style: italic;
    color: #666 !important;
    margin-top: 8px !important;
}

.tutorial-note.support {
    background: linear-gradient(135deg, rgba(34, 197, 94, 0.1), rgba(34, 197, 94, 0.05));
    border: 1px solid rgba(34, 197, 94, 0.2);
}

.tutorial-note.support .note-icon {
    background: rgba(34, 197, 94, 0.15);
    color: #4ade80;
}

.tutorial-note.support .note-content h4 {
    color: #4ade80;
}

.tutorial-note.support .note-content p,
.tutorial-note.support .note-content a {
    color: #a3a3a3;
}

.tutorial-note.support .note-content a:hover {
    color: #4ade80;
}

.tutorial-note.notification {
    background: linear-gradient(135deg, rgba(236, 72, 153, 0.1), rgba(236, 72, 153, 0.05));
    border: 1px solid rgba(236, 72, 153, 0.2);
}

.tutorial-note.notification .note-icon {
    background: rgba(236, 72, 153, 0.15);
    color: #f472b6;
}

.tutorial-note.notification .note-content h4 {
    color: #f472b6;
}

.tutorial-note.notification .note-content p,
.tutorial-note.notification .note-content a {
    color: #a3a3a3;
}

.tutorial-note.notification .note-content a:hover {
    color: #f472b6;
}

.tutorials-cta {
    padding: 0 0 150px 0;
    background: linear-gradient(180deg, transparent, rgba(255, 255, 255, 0.02));
}

.tutorials-cta .cta-content {
    text-align: center;
    max-width: 1000px;
    margin: 0 auto;
}

.cta-icon {
    width: 80px;
    height: 80px;
    background: linear-gradient(135deg, rgba(255, 255, 255, 0.1), rgba(255, 255, 255, 0.05));
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 24px;
    color: #fff;
}

.tutorials-cta h2 {
    font-size: 2rem;
    font-weight: 700;
    color: #fff;
    margin-bottom: 16px;
}

.tutorials-cta p {
    font-size: 1.1rem;
    color: #888;
    margin-bottom: 32px;
}

.tutorials-cta .btn {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    padding: 14px 28px;
    font-size: 1rem;
}

@media (max-width: 1024px) {
    .tutorials-layout {
        grid-template-columns: 1fr;
        gap: 40px;
    }

    .tutorial-toc {
        position: static;
        display: grid;
        grid-template-columns: 1fr auto;
        gap: 20px;
        align-items: center;
    }

    .toc-header {
        grid-column: 1 / -1;
    }

    .toc-list {
        flex-direction: row;
        flex-wrap: wrap;
        gap: 8px;
    }

    .toc-link {
        padding: 8px 14px;
        font-size: 0.85rem;
    }

    .toc-link svg {
        display: none;
    }

    .toc-progress {
        margin-top: 0;
        padding-top: 0;
        border-top: none;
        grid-column: 2;
        grid-row: 2;
    }
}

@media (max-width: 768px) {
    .tutorials-header {
        padding: 80px 0 40px;
    }

    .tutorials-header .page-title {
        font-size: 2rem;
    }

    .tutorials-icon {
        width: 64px;
        height: 64px;
    }

    .tutorials-icon svg {
        width: 32px;
        height: 32px;
    }

    .tutorials-content {
        padding: 40px 0 60px;
    }

    .tutorial-toc {
        display: block;
    }

    .toc-list {
        flex-direction: column;
    }

    .toc-progress {
        margin-top: 20px;
        padding-top: 16px;
        border-top: 1px solid rgba(255, 255, 255, 0.08);
    }

    .tutorial-section {
        margin-bottom: 60px;
    }

    .section-header h2 {
        font-size: 1.5rem;
    }

    .tutorial-step {
        flex-direction: column;
        gap: 16px;
        padding: 20px;
    }

    .step-number {
        width: 40px;
        height: 40px;
        font-size: 0.9rem;
    }

    .hotkey-grid {
        grid-template-columns: 1fr;
    }

    .tutorials-cta {
        padding: 60px 0;
    }

    .tutorials-cta h2 {
        font-size: 1.5rem;
    }

    .cta-icon {
        width: 64px;
        height: 64px;
    }

    .cta-icon svg {
        width: 32px;
        height: 32px;
    }
}

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

    .tutorials-header .page-subtitle {
        font-size: 1rem;
    }

    .section-header {
        flex-direction: column;
        align-items: flex-start;
        gap: 8px;
    }

    .section-header h2 {
        font-size: 1.35rem;
    }

    .section-intro {
        font-size: 0.95rem;
    }

    .tutorial-note {
        flex-direction: column;
        gap: 12px;
        padding: 16px 20px;
    }

    .note-icon {
        width: 40px;
        height: 40px;
    }

    .note-icon svg {
        width: 20px;
        height: 20px;
    }
}