/* LMS Core Styles */
:root {
    --lms-primary: #e95513;
    --lms-secondary: #f7b52c;
    --lms-primary-light: #ff6b2b;
    --lms-primary-dark: #d14a0f;
    --lms-secondary-light: #ffc947;
    --lms-secondary-dark: #e6a429;
    --lms-text-dark: #333333;
    --lms-text-light: #666666;
    --lms-bg-light: #f8f9fa;
    --lms-border: #e0e0e0;
    --lms-success: #28a745;
    --lms-warning: #ffc107;
    --lms-danger: #dc3545;
}

/* 基本レイアウト */
.lms-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 15px;
}

.lms-row {
    display: flex;
    flex-wrap: wrap;
    margin: 0 -10px;
}

.lms-col {
    padding: 0 10px;
    flex: 1;
}

.lms-col-3 { flex: 0 0 25%; }
.lms-col-4 { flex: 0 0 33.333333%; }
.lms-col-6 { flex: 0 0 50%; }
.lms-col-8 { flex: 0 0 66.666667%; }
.lms-col-9 { flex: 0 0 75%; }
.lms-col-12 { flex: 0 0 100%; }

/* ダッシュボード */
.lms-dashboard {
    background: var(--lms-bg-light);
    padding: 20px 0;
}

.lms-dashboard-header {
    background: linear-gradient(135deg, var(--lms-primary), var(--lms-primary-light));
    color: white;
    padding: 25px 0;
    margin-bottom: 20px;
    border-radius: 8px;
    box-shadow: 0 4px 20px rgba(233, 85, 19, 0.3);
}

.lms-dashboard-title {
    font-size: 1.8rem;
    font-weight: 600;
    margin: 0 0 8px 0;
    text-shadow: 0 2px 4px rgba(0,0,0,0.1);
}

.lms-dashboard-subtitle {
    font-size: 1rem;
    opacity: 0.9;
    margin: 0;
}

/* カード */
.lms-card {
    background: white;
    border-radius: 8px;
    box-shadow: 0 1px 8px rgba(0,0,0,0.06);
    margin-bottom: 20px;
    overflow: hidden;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.lms-card:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 15px rgba(0,0,0,0.1);
}

.lms-card-header {
    background: linear-gradient(135deg, var(--lms-secondary), var(--lms-secondary-light));
    color: white;
    padding: 15px 20px;
    font-weight: 500;
    font-size: 1rem;
}

.lms-card-body {
    padding: 20px;
}

.lms-card-footer {
    background: var(--lms-bg-light);
    padding: 12px 20px;
    border-top: 1px solid var(--lms-border);
}

/* 進捗バー */
.lms-progress {
    background: #e9ecef;
    border-radius: 50px;
    height: 8px;
    overflow: hidden;
    margin: 8px 0;
}

.lms-progress-bar {
    background: linear-gradient(90deg, var(--lms-primary), var(--lms-primary-light));
    height: 100%;
    border-radius: 50px;
    transition: width 0.6s ease;
    position: relative;
    transform-origin: left center;
}

.lms-progress-bar::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(90deg, transparent, rgba(255,255,255,0.3), transparent);
    animation: shimmer 2s infinite;
    transform-origin: left center;
}

@keyframes shimmer {
    0% { 
        transform: translateX(-100%); 
        opacity: 0;
    }
    50% { 
        opacity: 1;
    }
    100% { 
        transform: translateX(100%); 
        opacity: 0;
    }
}

.lms-progress-text {
    font-size: 12px;
    color: var(--lms-text-light);
    margin-top: 4px;
    text-align: right;
}

/* ボタン */
.lms-btn {
    display: inline-block;
    padding: 10px 18px;
    border: none;
    border-radius: 6px;
    font-size: 14px;
    font-weight: 500;
    text-decoration: none;
    text-align: center;
    cursor: pointer;
    transition: all 0.3s ease;
    line-height: 1.4;
}

.lms-btn-primary {
    background: linear-gradient(135deg, var(--lms-primary), var(--lms-primary-light));
    color: white;
    box-shadow: 0 2px 8px rgba(233, 85, 19, 0.3);
}

.lms-btn-primary:hover {
    background: linear-gradient(135deg, var(--lms-primary-dark), var(--lms-primary));
    transform: translateY(-1px);
    box-shadow: 0 3px 12px rgba(233, 85, 19, 0.4);
    color: white;
    text-decoration: none;
}

.lms-btn-secondary {
    background: linear-gradient(135deg, var(--lms-secondary), var(--lms-secondary-light));
    color: white;
    box-shadow: 0 2px 8px rgba(247, 181, 44, 0.3);
}

.lms-btn-secondary:hover {
    background: linear-gradient(135deg, var(--lms-secondary-dark), var(--lms-secondary));
    transform: translateY(-1px);
    box-shadow: 0 3px 12px rgba(247, 181, 44, 0.4);
    color: white;
    text-decoration: none;
}

.lms-btn-outline {
    background: transparent;
    border: 2px solid var(--lms-primary);
    color: var(--lms-primary);
}

.lms-btn-outline:hover {
    background: var(--lms-primary);
    color: white;
    text-decoration: none;
}

/* 動画プレイヤー */
.lms-video-container {
    position: relative;
    background: #000;
    border-radius: 8px;
    overflow: hidden;
    margin-bottom: 15px;
}

.lms-video-player {
    width: 100%;
    height: auto;
    display: block;
    position: relative;
    z-index: 1;
}

/* 再生速度コントロール */
.lms-speed-control {
    position: absolute;
    bottom: 10px;
    right: 10px;
    z-index: 100;
    pointer-events: auto;
}

.lms-speed-btn {
    background: rgba(0, 0, 0, 0.7);
    color: white;
    border: 1px solid rgba(255, 255, 255, 0.3);
    border-radius: 4px;
    padding: 6px 12px;
    font-size: 12px;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.3s ease;
    min-width: 40px;
    pointer-events: auto;
}

.lms-speed-btn:hover {
    background: rgba(0, 0, 0, 0.9);
    border-color: rgba(255, 255, 255, 0.5);
}

.lms-speed-menu {
    position: absolute;
    bottom: 100%;
    right: 0;
    margin-bottom: 5px;
    background: rgba(0, 0, 0, 0.9);
    border: 1px solid rgba(255, 255, 255, 0.3);
    border-radius: 4px;
    padding: 4px;
    display: none;
    flex-direction: row;
    gap: 2px;
    white-space: nowrap;
    z-index: 101;
    pointer-events: auto;
}

.lms-speed-menu.show {
    display: flex;
}

.lms-speed-option {
    background: transparent;
    color: white;
    border: 1px solid transparent;
    border-radius: 3px;
    padding: 4px 8px;
    font-size: 11px;
    cursor: pointer;
    transition: all 0.2s ease;
    min-width: 32px;
    text-align: center;
    pointer-events: auto;
}

.lms-speed-option:hover {
    background: rgba(255, 255, 255, 0.2);
    border-color: rgba(255, 255, 255, 0.3);
}

.lms-speed-option.active {
    background: var(--lms-primary);
    border-color: var(--lms-primary);
}

.lms-video-controls {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    background: linear-gradient(transparent, rgba(0,0,0,0.8));
    padding: 15px;
    color: white;
    pointer-events: none;
    z-index: 2;
}

.lms-video-controls > * {
    pointer-events: auto;
}

.lms-video-progress {
    background: rgba(255,255,255,0.3);
    height: auto;
    border-radius: 2px;
    margin-bottom: 10px;
    cursor: pointer;
    pointer-events: auto;
}

.lms-video-progress-bar {
    background: var(--lms-secondary);
    height: 100%;
    border-radius: 2px;
    transition: width 0.1s ease;
    pointer-events: none;
}

.lms-video-info {
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 13px;
    pointer-events: auto;
}

/* コース一覧 */
.lms-course-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
    margin-top: 20px;
}

.lms-course-item {
    background: white;
    border-radius: 8px;
    overflow: hidden;
    box-shadow: 0 1px 8px rgba(0,0,0,0.06);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    cursor: pointer;
    position: relative;
}

.lms-course-thumbnail {
    position: relative;
    width: 100%;
    padding-top: 66.66%; /* 3:2の縦横比 (高さが幅の66.66%) */
    overflow: hidden;
    background-color: #f0f0f0;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 8px 8px 0 0;
}

.lms-course-thumbnail img {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    object-position: center;
}

.lms-course-thumbnail-placeholder .dashicons {
    font-size: 3em;
    color: #ccc;
}

.lms-course-content {
    padding: 18px;
    position: relative;
}

.lms-course-title {
    font-size: 1.1rem;
    font-weight: 500;
    color: var(--lms-text-dark);
    margin: 0 0 8px 0;
    line-height: 1.3;
}

.lms-course-description {
    color: var(--lms-text-light);
    font-size: 13px;
    line-height: 1.4;
    margin-bottom: 15px;
}

.lms-course-meta {
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 12px;
    color: var(--lms-text-light);
    margin-bottom: 15px;
}

/* カードオーバーレイ */
.lms-card-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.3);
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: opacity 0.3s ease;
    border-radius: 8px;
}

.lms-card-action-text {
    color: #fff;
    font-size: 0.9rem;
    font-weight: 600;
    /* text-shadow: 0 2px 4px rgba(0,0,0,0.3); */
}

.lms-course-item:hover .lms-card-overlay,
.lms-video-item:hover .lms-card-overlay {
    opacity: 1;
}

/* レスポンシブ */
@media (max-width: 768px) {
    .lms-row {
        margin: 0;
    }
    
    .lms-col {
        padding: 0;
        flex: 0 0 100%;
        margin-bottom: 15px;
    }
    
    .lms-dashboard-title {
        font-size: 1.5rem;
    }
    
    .lms-course-grid {
        grid-template-columns: 1fr;
        gap: 15px;
    }
    
    .lms-card-body {
        padding: 15px;
    }
}

@media (max-width: 1024px) and (min-width: 769px) {
    .lms-course-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

/* ユーティリティクラス */
.lms-text-center { text-align: center; }
.lms-text-right { text-align: right; }
.lms-mb-0 { margin-bottom: 0; }
.lms-mb-10 { margin-bottom: 8px; }
.lms-mb-20 { margin-bottom: 15px; }
.lms-mb-30 { margin-bottom: 20px; }
.lms-mt-20 { margin-top: 15px; }
.lms-mt-30 { margin-top: 20px; }

.lms-text-primary { color: var(--lms-primary); }
.lms-text-secondary { color: var(--lms-secondary); }
.lms-text-success { color: var(--lms-success); }
.lms-text-warning { color: var(--lms-warning); }
.lms-text-danger { color: var(--lms-danger); }

.lms-bg-primary { background-color: var(--lms-primary); }
.lms-bg-secondary { background-color: var(--lms-secondary); }
.lms-bg-light { background-color: var(--lms-bg-light); }