/* Help Center - Professional Video Tutorial Page */

.container {
    width: 100%;
    max-width: 1300px;
    margin: 0 auto;
    padding: 0 2rem;
}

/* Hero Section */
.hero {
    text-align: center;
    padding: 4rem 2rem 3rem;
    padding-top: 5rem;
}

.heroIcon {
    width: 72px;
    height: 72px;
    background: linear-gradient(135deg, var(--wine-red) 0%, var(--wine-dark) 100%);
    border-radius: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 1.5rem;
    box-shadow: 0 10px 30px rgba(255, 42, 127, 0.2);
}

.heroTitle {
    font-size: 3rem;
    font-weight: 800;
    line-height: 1.2;
    margin-bottom: 1rem;
    background: linear-gradient(135deg, var(--wine-superdark) 0%, var(--wine-red) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.heroSubtitle {
    font-size: 1.2rem;
    color: var(--gray-dark);
    max-width: 700px;
    margin: 0 auto 2rem;
    line-height: 1.7;
}

.heroStats {
    display: flex;
    gap: 2rem;
    justify-content: center;
    flex-wrap: wrap;
    margin-top: 2rem;
}

.statItem {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.75rem 1.5rem;
    background: var(--white);
    border-radius: 50px;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.06);
    border: 1px solid var(--white-darkest);
}

.statNumber {
    font-size: 1.4rem;
    font-weight: 800;
    color: var(--wine-dark);
}

.statLabel {
    font-size: 0.9rem;
    color: var(--gray-dark);
    font-weight: 500;
}

/* Category Navigation */
.categoryNav {
    display: flex;
    gap: 0.75rem;
    justify-content: center;
    flex-wrap: wrap;
    padding: 1.5rem 0 3rem;
    position: sticky;
    top: 0;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    z-index: 10;
    border-bottom: 1px solid var(--white-darkest);
    margin-bottom: 2rem;
}

.categoryBtn {
    padding: 0.6rem 1.4rem;
    border-radius: 50px;
    font-size: 0.9rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.25s ease;
    border: 2px solid var(--white-darkest);
    background: var(--white);
    color: var(--gray-dark);
    white-space: nowrap;
}

.categoryBtn:hover {
    border-color: var(--wine-light);
    color: var(--wine-dark);
    background: rgba(127, 42, 255, 0.04);
}

.categoryBtnActive {
    composes: categoryBtn;
    background: linear-gradient(135deg, var(--wine-red) 0%, var(--wine-dark) 100%);
    color: var(--white);
    border-color: transparent;
    box-shadow: 0 4px 15px rgba(255, 42, 127, 0.3);
}

.categoryBtnActive:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(255, 42, 127, 0.4);
    color: var(--white);
}

/* Category Section */
.categorySection {
    margin-bottom: 4rem;
    scroll-margin-top: 80px;
}

.categoryHeader {
    display: flex;
    align-items: center;
    gap: 1rem;
    margin-bottom: 2rem;
    padding-bottom: 1rem;
    border-bottom: 2px solid var(--white-darkest);
}

.categoryIcon {
    width: 48px;
    height: 48px;
    border-radius: 14px;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.categoryTitle {
    font-size: 1.8rem;
    font-weight: 800;
    color: var(--wine-superdark);
}

.categoryDescription {
    font-size: 1rem;
    color: var(--gray-dark);
    margin-top: 0.25rem;
    line-height: 1.5;
}

.categoryCount {
    margin-left: auto;
    background: var(--white-dark);
    color: var(--gray-dark);
    padding: 0.3rem 0.8rem;
    border-radius: 50px;
    font-size: 0.85rem;
    font-weight: 600;
}

/* Video Grid */
.videoGrid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(340px, 1fr));
    gap: 1.5rem;
}

/* Video Card */
.videoCard {
    background: var(--white);
    border-radius: 16px;
    overflow: hidden;
    border: 1px solid var(--white-darkest);
    box-shadow: 0 4px 16px rgba(0, 0, 0, 0.04);
    transition: all 0.3s ease;
    cursor: pointer;
}

.videoCard:hover {
    transform: translateY(-4px);
    box-shadow: 0 12px 32px rgba(0, 0, 0, 0.1);
    border-color: var(--wine-lighter);
}

.videoThumbnail {
    position: relative;
    width: 100%;
    padding-bottom: 56.25%;
    overflow: hidden;
    background: var(--black);
}

.videoThumbnail img {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.3s ease;
}

.videoCard:hover .videoThumbnail img {
    transform: scale(1.05);
}

.playOverlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(0, 0, 0, 0);
    transition: background 0.3s ease;
}

.videoCard:hover .playOverlay {
    background: rgba(0, 0, 0, 0.3);
}

.playButton {
    width: 56px;
    height: 56px;
    background: rgba(255, 255, 255, 0.95);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transform: scale(0.8);
    transition: all 0.3s ease;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.3);
}

.videoCard:hover .playButton {
    opacity: 1;
    transform: scale(1);
}

.playIcon {
    width: 0;
    height: 0;
    border-style: solid;
    border-width: 10px 0 10px 18px;
    border-color: transparent transparent transparent var(--wine-red);
    margin-left: 4px;
}

.videoDuration {
    position: absolute;
    bottom: 8px;
    right: 8px;
    background: rgba(0, 0, 0, 0.8);
    color: white;
    padding: 2px 6px;
    border-radius: 4px;
    font-size: 0.75rem;
    font-weight: 600;
}

.videoContent {
    padding: 1.25rem;
}

.videoTitle {
    font-size: 1rem;
    font-weight: 700;
    color: var(--black);
    margin-bottom: 0.5rem;
    line-height: 1.4;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.videoDescription {
    font-size: 0.85rem;
    color: var(--gray-dark);
    line-height: 1.5;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.videoMeta {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    margin-top: 0.75rem;
    padding-top: 0.75rem;
    border-top: 1px solid var(--white-darkest);
}

.videoStep {
    display: flex;
    align-items: center;
    gap: 0.4rem;
    font-size: 0.8rem;
    color: var(--wine-dark);
    font-weight: 600;
}

.stepNumber {
    width: 22px;
    height: 22px;
    background: linear-gradient(135deg, var(--wine-red), var(--wine-dark));
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.7rem;
    font-weight: 700;
}

/* Video Modal */
.modalOverlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.85);
    z-index: 1000;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 2rem;
    animation: fadeIn 0.2s ease;
}

@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

.modalContent {
    width: 100%;
    max-width: 1100px;
    background: var(--white);
    border-radius: 20px;
    overflow: hidden;
    box-shadow: 0 25px 60px rgba(0, 0, 0, 0.5);
    animation: slideUp 0.3s ease;
    max-height: 90vh;
    display: flex;
    flex-direction: column;
}

@keyframes slideUp {
    from { transform: translateY(20px); opacity: 0; }
    to { transform: translateY(0); opacity: 1; }
}

.modalHeader {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 1.25rem 1.5rem;
    border-bottom: 1px solid var(--white-darkest);
    background: var(--white);
}

.modalTitle {
    font-size: 1.2rem;
    font-weight: 700;
    color: var(--black);
    flex: 1;
    margin-right: 1rem;
}

.modalClose {
    width: 36px;
    height: 36px;
    border-radius: 50%;
    background: var(--white-dark);
    border: none;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.2s ease;
    flex-shrink: 0;
}

.modalClose:hover {
    background: var(--error);
    color: white;
}

.modalBody {
    display: flex;
    flex: 1;
    overflow: hidden;
}

.modalVideo {
    flex: 1;
    min-width: 0;
}

.videoWrapper {
    position: relative;
    padding-bottom: 56.25%;
    height: 0;
    overflow: hidden;
}

.videoWrapper iframe {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    border: none;
}

.modalSidebar {
    width: 320px;
    overflow-y: auto;
    border-left: 1px solid var(--white-darkest);
    background: var(--white-dark);
    flex-shrink: 0;
}

.sidebarTitle {
    font-size: 0.9rem;
    font-weight: 700;
    color: var(--gray-dark);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    padding: 1rem 1.25rem 0.75rem;
}

.sidebarVideo {
    display: flex;
    gap: 0.75rem;
    padding: 0.75rem 1.25rem;
    cursor: pointer;
    transition: background 0.2s ease;
    border-bottom: 1px solid rgba(0, 0, 0, 0.04);
}

.sidebarVideo:hover {
    background: rgba(127, 42, 255, 0.04);
}

.sidebarVideoActive {
    composes: sidebarVideo;
    background: rgba(127, 42, 255, 0.08);
    border-left: 3px solid var(--wine-red);
}

.sidebarThumb {
    width: 100px;
    height: 56px;
    border-radius: 8px;
    overflow: hidden;
    flex-shrink: 0;
    position: relative;
}

.sidebarThumb img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.sidebarVideoInfo {
    flex: 1;
    min-width: 0;
}

.sidebarVideoTitle {
    font-size: 0.8rem;
    font-weight: 600;
    color: var(--black);
    line-height: 1.3;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.sidebarVideoCategory {
    font-size: 0.7rem;
    color: var(--wine-dark);
    font-weight: 500;
    margin-top: 0.25rem;
}

/* Progress Section */
.progressSection {
    background: linear-gradient(135deg, var(--wine-superdark) 0%, var(--wine-darkest) 100%);
    border-radius: 20px;
    padding: 3rem;
    margin: 3rem 0;
    text-align: center;
    color: white;
}

.progressTitle {
    font-size: 1.8rem;
    font-weight: 800;
    margin-bottom: 0.75rem;
}

.progressText {
    font-size: 1.1rem;
    opacity: 0.85;
    max-width: 600px;
    margin: 0 auto 2rem;
    line-height: 1.6;
}

.progressBar {
    max-width: 500px;
    margin: 0 auto;
    height: 8px;
    background: rgba(255, 255, 255, 0.2);
    border-radius: 4px;
    overflow: hidden;
}

.progressFill {
    height: 100%;
    background: linear-gradient(90deg, var(--wine-red), var(--yellow));
    border-radius: 4px;
    transition: width 0.5s ease;
}

/* CTA Section */
.ctaSection {
    text-align: center;
    padding: 4rem 2rem;
    margin-top: 2rem;
    background: var(--white-dark);
    border-radius: 24px;
    margin-bottom: 3rem;
}

.ctaTitle {
    font-size: 2rem;
    font-weight: 800;
    color: var(--wine-superdark);
    margin-bottom: 1rem;
}

.ctaText {
    font-size: 1.1rem;
    color: var(--gray-dark);
    max-width: 500px;
    margin: 0 auto 2rem;
    line-height: 1.6;
}

.ctaButton {
    display: inline-block;
    padding: 1rem 2.5rem;
    background: linear-gradient(135deg, var(--wine-red) 0%, var(--wine-dark) 100%);
    color: white;
    border-radius: 50px;
    font-weight: 700;
    font-size: 1.1rem;
    text-decoration: none;
    transition: all 0.3s ease;
    box-shadow: 0 4px 15px rgba(255, 42, 127, 0.3);
}

.ctaButton:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 25px rgba(255, 42, 127, 0.4);
    color: white;
    text-decoration: none;
}

/* Learning Path */
.learningPath {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 1rem 1.5rem;
    background: rgba(127, 42, 255, 0.04);
    border-radius: 12px;
    margin-bottom: 2rem;
    border: 1px solid rgba(127, 42, 255, 0.1);
}

.learningPathIcon {
    color: var(--wine-dark);
    flex-shrink: 0;
}

.learningPathText {
    font-size: 0.9rem;
    color: var(--wine-darkest);
    font-weight: 500;
    line-height: 1.4;
}

/* Responsive */
@media (max-width: 1024px) {
    .modalSidebar {
        display: none;
    }

    .modalBody {
        flex-direction: column;
    }
}

@media (max-width: 768px) {
    .heroTitle {
        font-size: 2.2rem;
    }

    .heroSubtitle {
        font-size: 1rem;
    }

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

    .categoryNav {
        justify-content: flex-start;
        overflow-x: auto;
        padding-bottom: 1rem;
        -webkit-overflow-scrolling: touch;
    }

    .categoryHeader {
        flex-wrap: wrap;
    }

    .categoryCount {
        margin-left: 0;
    }

    .heroStats {
        gap: 1rem;
    }

    .statItem {
        padding: 0.5rem 1rem;
    }

    .modalContent {
        border-radius: 12px;
    }

    .modalOverlay {
        padding: 1rem;
    }

    .progressSection {
        padding: 2rem 1.5rem;
    }

    .container {
        padding: 0 1rem;
    }
}

@media (max-width: 480px) {
    .hero {
        padding: 3rem 1rem 2rem;
    }

    .heroTitle {
        font-size: 1.8rem;
    }

    .categoryTitle {
        font-size: 1.4rem;
    }

    .videoContent {
        padding: 1rem;
    }
}