/* --- Base Variables --- */
:root {
    --bau-bg-color: #F6F4F9;
    --bau-sidebar-bg: #ffffff;
    --bau-text-main: #2c2c35;
    --bau-text-muted: #7a7a8c;
    --bau-heading-dark: #443495;
    --bau-heading-primary: #6353FE;
    --bau-border-color: #eaeaea;
    --bau-shadow: 0 4px 20px rgba(0, 0, 0, 0.05);
    --bau-radius: 16px;
    --bau-font: 'Mulish', sans-serif;
    --bau-font-heading: 'Quiche Text', 'Mulish', sans-serif;
}

/* --- Container --- */
.bau-app-container {
    display: flex;
    flex-wrap: nowrap;
    gap: 30px;
    background: var(--bau-bg-color);
    padding: 30px;
    border-radius: var(--bau-radius);
    font-family: var(--bau-font);
    color: var(--bau-text-main);
    max-width: 1200px;
    margin: 0 auto;
    box-sizing: border-box;
    /* Extra padding at bottom to clear the player bar */
    padding-bottom: 100px; 
}

.bau-app-container * {
    box-sizing: border-box;
}

h1, h2, h3, h4, h5, h6 {
    font-family: var(--bau-font-heading);
    color: var(--bau-heading-dark);
}

/* --- Sidebar --- */
.bau-sidebar {
    width: 310px;
    flex-shrink: 0;
    background: var(--bau-sidebar-bg);
    border-radius: var(--bau-radius);
    padding: 25px;
    box-shadow: var(--bau-shadow);
    align-self: flex-start;
}

.bau-sidebar-title {
    font-size: 1.3rem;
    font-weight: 700;
    margin-bottom: 20px;
    padding-left: 0;
    margin-top:0;
    font-family: var(--bau-font-heading) !important;
    color: var(--bau-heading-dark) !important;
}

.bau-path-list {
    list-style: none;
    padding: 0;
    margin: 0;
}

.bau-path-item {
    display: flex;
    align-items: center;
    padding: 12px 15px;
    margin-bottom: 2px;
    border-radius: 12px;
    cursor: pointer;
    font-size:.9rem;
    transition: all 0.2s ease;
    font-weight: 600;
    color: var(--bau-text-muted);
    background: transparent;
    border: 1px solid transparent;
}

.bau-path-item.active {
    background: #ffffff;
    color: var(--bau-heading-dark);
    font-weight: 700;
    /* box-shadow is set dynamically in JS */
}

.bau-path-icon {
    width: 32px;
    height: 32px;
    min-width: 32px;
    min-height: 32px;
    margin-right: 12px;
    object-fit: cover;
    background: #fff;
    border-radius: 50%;
    box-shadow: 0 2px 5px rgba(0,0,0,0.05);
    flex-shrink: 0;
}

.bau-path-icon-placeholder {
    width: 32px;
    height: 32px;
    min-width: 32px;
    min-height: 32px;
    border-radius: 50%;
    margin-right: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: #fff;
    flex-shrink: 0;
}

/* --- Main Content --- */
.bau-main-content {
    flex-grow: 1;
    background: #ffffff;
    border-radius: var(--bau-radius);
    padding: 25px;
    box-shadow: var(--bau-shadow);
}

.bau-path-header {
    display: flex;
    align-items: center;
    gap: 30px;
    margin-bottom: 40px;
}

.bau-path-cover-wrap {
    flex-shrink: 0;
    width: 180px;
    border-radius: var(--bau-radius);
    overflow: hidden;
    box-shadow: 0 4px 15px rgba(0,0,0,0.05);
}

.bau-path-cover-image {
    width: 100%;
    height: auto;
    display: block;
    object-fit: cover;
    aspect-ratio: 1/1;
}

.bau-path-info {
    flex-grow: 1;
}

.bau-app-container #bau-current-path-title {
    font-size: 2.2rem !important;
    font-weight: 700 !important;
    margin: 0 0 15px 0 !important;
    color: var(--bau-heading-dark) !important;
    font-family: var(--bau-font-heading) !important;
}

.bau-path-progress-wrap {
    display: flex;
    align-items: center;
    gap: 15px;
}

.bau-path-progress-label {
    font-size: 0.95rem;
    color: var(--bau-text-muted);
    font-weight: 600;
}

.bau-path-progress-bar-bg {
    flex-grow: 1;
    height: 10px;
    background: var(--bau-bg-color);
    border-radius: 5px;
    overflow: hidden;
}

.bau-path-progress-bar-fill {
    height: 100%;
    border-radius: 5px;
    transition: width 0.5s ease;
}

.bau-path-progress-text {
    font-weight: 700;
    font-size: 1.1rem;
}

/* --- Materials List --- */
.bau-materials-container {
    position: relative;
}

.bau-material-item {
    position: relative;
    display: flex;
    align-items: flex-start;
    background: #ffffff;
    border: 1px solid var(--bau-border-color);
    border-radius: var(--bau-radius);
    padding: 20px 25px;
    margin-bottom: 25px;
    box-shadow: 0 2px 10px rgba(0,0,0,0.02);
    transition: transform 0.2s ease, box-shadow 0.2s ease;
    animation: fadeSlideUp 0.4s ease backwards;
}

@keyframes fadeSlideUp {
    from {
        opacity: 0;
        transform: translateY(15px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.bau-material-item:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(0,0,0,0.06);
}

.bau-material-icon-wrap {
    width: 60px;
    height: 60px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-right: 25px;
    flex-shrink: 0;
    background: #ffffff;
    box-shadow: 0 2px 8px rgba(0,0,0,0.05);
    overflow: hidden;
}

.bau-material-icon-wrap img.bau-item-img-icon {
    width: 100%;
    height: 100%;
    object-fit: cover;
    border-radius: 50%;
}

.bau-material-content-wrap {
    flex-grow: 1;
    display: flex;
    flex-direction: column;
}

.bau-material-info-flex {
    display: flex;
    align-items: center;
    justify-content: space-between;
    width: 100%;
}

.bau-material-info {
    flex-grow: 1;
    padding-right: 15px;
}

.bau-app-container .bau-material-title,
#bau-materials-list .bau-material-title {
    font-family: var(--bau-font-heading) !important;
    font-weight: 700 !important;
    font-size: 1.3rem !important;
    margin: 0 0 5px 0 !important;
    color: var(--bau-heading-dark) !important;
}

.bau-material-desc {
    font-family: var(--bau-font) !important;
    font-size: 0.95rem !important;
    color: var(--bau-text-muted) !important;
    margin: 0 !important;
    line-height: 1.5 !important;
}

.bau-material-action {
    flex-shrink: 0;
    display: flex;
    align-items: center;
    gap: 8px;
}

/* User specified button styles */
.bau-btn {
    font-family: "Mulish", sans-serif !important;
    font-size: 14px !important;
    font-weight: 700 !important;
    color: #ffffff !important; 
    background-color: var(--bau-heading-primary, #6353FE) !important;
    border-style: solid !important;
    border-width: 2px !important;
    border-color: var(--bau-heading-primary, #6353FE) !important;
    border-radius: 25px !important;
    padding: 12px 20px !important;
    cursor: pointer !important;
    text-decoration: none !important;
    display: inline-flex !important;
    align-items: center !important;
    justify-content: center !important;
    gap: 8px !important;
    transition: all 0.3s ease !important;
}

.bau-btn:hover {
    opacity: 0.9 !important;
    transform: translateY(-1px) !important;
    box-shadow: 0 4px 12px rgba(99, 83, 254, 0.3) !important;
}

.bau-btn i {
    margin-right: 8px !important;
}

.bau-badge-completed {
    font-family: var(--bau-font);
    font-size: 13px;
    font-weight: 700;
    color: #4CAF50;
    display: flex;
    align-items: center;
    gap: 4px;
    white-space: nowrap;
}

.bau-badge-completed i {
    margin-right: 5px;
}

/* --- Inline Audio Player --- */
.bau-inline-player {
    width: 100%;
    margin-top: 20px;
    padding-top: 20px;
    border-top: 1px solid var(--bau-border-color);
}

.bau-inline-player audio {
    width: 100%;
    height: 40px;
    outline: none;
}

.bau-no-access-message {
    background: var(--bau-bg-color);
    padding: 50px;
    border-radius: var(--bau-radius);
    text-align: center;
    font-family: var(--bau-font);
}

.bau-center-text {
    text-align: center;
}

.bau-btn-cart svg {
    margin-right: 8px;
}

.bau-no-access-message p {
    font-size: 1.1rem;
    color: var(--bau-text-main);
    margin-bottom: 25px;
}

@media (max-width: 768px) {
    .bau-app-container {
        flex-direction: column;
        padding-bottom: 30px; /* Reset bottom padding */
    }
    .bau-sidebar {
        width: 100%;
    }
    .bau-material-info-flex {
        flex-direction: column;
        align-items: flex-start;
    }
    .bau-material-action {
        margin-top: 15px;
        margin-left: 0;
    }
}

/* --- See More Footer --- */
.bau-see-more-footer {
    display: flex;
    align-items: center;
    justify-content: space-between;
    background: transparent;
    border: none;
    border-top: 1px solid rgba(0,0,0,0.08);
    border-radius: 0;
    padding: 25px 15px 15px 15px;
    margin-top: 25px;
    cursor: pointer;
    box-shadow: none;
    transition: all 0.3s ease;
}

.bau-see-more-footer:hover {
    box-shadow: none;
    transform: none;
    opacity: 0.8;
}

.bau-sm-images-wrap {
    display: flex;
    align-items: center;
}

.bau-sm-img {
    width: 44px;
    height: 44px;
    border-radius: 12px;
    object-fit: cover;
    border: 3px solid #ffffff;
    margin-right: -15px;
    background: #fff;
    box-shadow: 0 2px 5px rgba(0,0,0,0.1);
}

.bau-sm-text {
    flex-grow: 1;
    margin-left: 30px;
    font-family: var(--bau-font);
    font-weight: 700;
    color: var(--bau-heading-dark);
    font-size: 1rem;
}

.bau-sm-icon {
    width: 44px;
    height: 44px;
    border-radius: 50%;
    background: #6353FE;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 2px 8px rgba(99, 83, 254, 0.3);
}

.bau-hidden-materials-container {
    animation: fadeSlideDown 0.4s ease forwards;
}

@keyframes fadeSlideDown {
    from {
        opacity: 0;
        transform: translateY(-10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* --- LearnPress Profile --- */
.bau-lp-container {
    font-family: var(--bau-font);
}
.bau-lp-title {
    font-family: var(--bau-font-heading);
    color: var(--bau-heading-dark);
    font-size: 1.5rem;
    margin-top: 0;
    margin-bottom: 20px;
}
.bau-lp-empty {
    color: var(--bau-text-muted);
}
.bau-lp-progress-list {
    list-style: none;
    padding: 0;
    margin: 0;
}
.bau-lp-item {
    background: #ffffff;
    border: 1px solid var(--bau-border-color);
    border-radius: 12px;
    padding: 20px;
    margin-bottom: 15px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    box-shadow: 0 2px 10px rgba(0,0,0,0.02);
}
.bau-lp-info {
    flex-grow: 1;
}
.bau-lp-info strong {
    display: block;
    font-size: 1.1rem;
    color: var(--bau-heading-dark);
    font-family: var(--bau-font-heading);
    margin-bottom: 5px;
}
.bau-lp-completed {
    color: #4CAF50;
    font-weight: 700;
    font-size: 0.9rem;
    display: flex;
    align-items: center;
}
.bau-lp-progress-text {
    color: var(--bau-text-muted);
    font-size: 0.9rem;
}
.bau-lp-progress-text b {
    color: var(--bau-heading-primary);
}
.bau-lp-action {
    flex-shrink: 0;
    margin-left: 20px;
}

/* --- Responsive Layout --- */
.bau-app-container,
.bau-app-container *,
.bau-lp-container,
.bau-lp-container * {
    box-sizing: border-box !important;
}

.bau-app-container {
    width: 100%;
}

.bau-main-content {
    min-width: 0; /* Prevents flex children from overflowing */
}

@media (max-width: 1024px) {
    .bau-app-container {
        padding: 20px;
        gap: 20px;
    }
    .bau-sidebar {
        width: 250px;
        padding: 15px;
    }
    .bau-app-container .bau-material-title,
    #bau-materials-list .bau-material-title {
        font-size: 1.15rem !important;
    }
    .bau-material-item {
        padding: 15px 20px;
    }
    .bau-material-info-flex{
        flex-direction: column;
        align-items: flex-start;
        gap:20px;
    }
}

@media (max-width: 768px) {
    .bau-path-info{
        width:100%;
    }
    .bau-path-cover-wrap{
        width:100px;
    }
    .bau-no-access-message{
        padding:20px;
    }
    .bau-app-container {
        padding: 15px;
        flex-direction: column;
        gap: 15px;
        border-radius: 12px;
    }
    .bau-sidebar {
        width: 100%;
        padding: 20px;
    }
    .bau-main-content {
        padding: 20px;
    }
    .bau-material-content-wrap{
        align-items: center;
        justify-content: center;
        margin: 0 auto;
            width: auto;
    min-width: 220px;
    }
    .bau-sidebar-title{
        font-size:1.3rem !important;
        padding-left:0;
    }
    .bau-path-item{
        padding: 8px 12px;
        font-size:.9rem !important;
    }
    .bau-app-container #bau-current-path-title{
        font-size:1.6rem !important;
    }
    .bau-material-info-flex{
        flex-direction: column;
        gap: 10px;
        align-items: center;
        justify-content: center;
    }
    .bau-path-header {
        flex-direction: column;
        align-items: flex-start;
    }
    .bau-path-header h2 {
        font-size: 1.5rem;
    }
    .bau-path-progress-wrap {
        width: 100%;
        margin-top: 10px;
        padding: 0;
    }
    .bau-material-item {
        padding: 15px;
        flex-direction: column;
        align-items: flex-start;
    }
    .bau-material-icon-wrap {
        margin-right: 0;
        margin-bottom: 15px;
        align-self: center;
    }
    .bau-material-info-flex {
        flex-direction: column;
        align-items: center;
        text-align: center;
        width: 100%;
    }
    .bau-material-info {
        padding-right: 0;
    }
    .bau-app-container .bau-material-title,
    #bau-materials-list .bau-material-title {
        font-size: 1.1rem !important;
    }
    .bau-material-desc {
        font-size: 0.85rem !important;
    }
    .bau-material-action {
        width: 100%;
        justify-content: center;
        margin-left: 0;
        margin-top: 15px;
        flex-direction: column;
    }
    .bau-see-more-footer {
        flex-direction: column;
        text-align: center;
        gap: 15px;
    }
    .bau-sm-text {
        margin-left: 0;
        font-size: 0.9rem;
    }
    
    .bau-lp-item {
        flex-direction: column;
        align-items: flex-start;
        padding: 15px;
    }
    .bau-lp-action {
        margin-left: 0;
        margin-top: 15px;
        width: 100%;
        display: flex;
        justify-content: center;
    }
    .bau-btn {
        width: 100%;
        font-size: 13px !important;
        padding: 10px 15px !important;
        white-space: normal !important;
        word-break: break-word;
    }
    .bau-path-header{
        margin-bottom:20px;
    }
}

/* --- E-book Modal --- */
.bau-modal {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    background: rgba(0, 0, 0, 0.7);
    z-index: 999999;
    display: flex;
    align-items: center;
    justify-content: center;
}

.bau-modal-content {
    background: #fff;
    width: 90%;
    max-width: 1200px;
    height: 90vh;
    border-radius: 12px;
    display: flex;
    flex-direction: column;
    overflow: hidden;
    box-shadow: 0 20px 40px rgba(0,0,0,0.2);
}

.bau-modal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 15px 20px;
    background: var(--bau-surface);
    border-bottom: 1px solid var(--bau-border);
}

.bau-modal-header h3 {
    margin: 0;
    font-size: 1.8rem;
    font-family: var(--bau-font-heading);
    color: var(--bau-heading-primary);
}

.bau-modal-actions {
    display: flex;
    align-items: center;
    gap: 15px;
}

.bau-modal-close {
    background: transparent !important;
    border: none !important;
    font-size: 32px !important;
    cursor: pointer !important;
    color: var(--bau-text-muted) !important;
    line-height: 1 !important;
    padding: 0 10px !important;
    transition: all 0.3s ease !important;
    display: flex !important;
    align-items: center !important;
    justify-content: center !important;
    outline: none !important;
    box-shadow: none !important;
}

.bau-modal-close:hover {
    color: var(--bau-text-main) !important;
    background: transparent !important;
    transform: scale(1.1) !important;
}

.bau-modal-body {
    flex-grow: 1;
    background: #f5f5f5;
    position: relative;
}

.bau-modal-body iframe {
    width: 100%;
    height: 100%;
    border: none;
}

@media (max-width: 768px) {
    .bau-modal-content {
        width: 100%;
        height: 100vh;
        border-radius: 0;
    }
}