/**
 * 研修コンテンツ進捗トラッカー - カスタムスタイル
 * パフォーマンス最適化: 軽量CSS、GPUアクセラレーション活用
 */

/* ========== ベーススタイル ========== */
[v-cloak] {
    display: none !important;
}

* {
    box-sizing: border-box;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Hiragino Sans', 'Noto Sans JP', sans-serif;
    line-height: 1.6;
}

/* ========== アニメーション（GPUアクセラレーション） ========== */
.fade-in {
    animation: fadeIn 0.3s ease-out;
    will-change: opacity, transform;
}

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

.fade-out {
    animation: fadeOut 0.3s ease-out;
}

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

/* スライドイン */
.slide-in-right {
    animation: slideInRight 0.3s ease-out;
}

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

/* ========== ローディング ========== */
.loading-spinner {
    width: 40px;
    height: 40px;
    border: 4px solid #f3f3f3;
    border-top: 4px solid #3B82F6;
    border-radius: 50%;
    animation: spin 1s linear infinite;
    will-change: transform;
}

.loading-spinner.small {
    width: 16px;
    height: 16px;
    border-width: 2px;
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

/* パルスアニメーション（接続状態） */
.pulse {
    animation: pulse 2s infinite;
}

@keyframes pulse {
    0%, 100% {
        opacity: 1;
    }
    50% {
        opacity: 0.5;
    }
}

/* ========== プログレスバー ========== */
.progress-bar {
    transition: width 0.5s ease-out;
    will-change: width;
}

.progress-bar-animated {
    background-image: linear-gradient(
        45deg,
        rgba(255, 255, 255, 0.15) 25%,
        transparent 25%,
        transparent 50%,
        rgba(255, 255, 255, 0.15) 50%,
        rgba(255, 255, 255, 0.15) 75%,
        transparent 75%,
        transparent
    );
    background-size: 1rem 1rem;
    animation: progressStripes 1s linear infinite;
}

@keyframes progressStripes {
    from { background-position: 1rem 0; }
    to { background-position: 0 0; }
}

/* ========== カード ========== */
.card {
    background: white;
    border-radius: 0.5rem;
    box-shadow: 0 1px 3px 0 rgba(0, 0, 0, 0.1), 0 1px 2px 0 rgba(0, 0, 0, 0.06);
    transition: box-shadow 0.2s ease, transform 0.2s ease;
    will-change: box-shadow, transform;
}

.card:hover {
    box-shadow: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
    transform: translateY(-2px);
}

.card-clickable {
    cursor: pointer;
}

/* ========== ボタン ========== */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    padding: 0.5rem 1rem;
    font-weight: 500;
    border-radius: 0.5rem;
    transition: all 0.2s ease;
    cursor: pointer;
    border: none;
    outline: none;
}

.btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

.btn-primary {
    background-color: #3B82F6;
    color: white;
}

.btn-primary:hover:not(:disabled) {
    background-color: #2563EB;
}

.btn-secondary {
    background-color: #6B7280;
    color: white;
}

.btn-secondary:hover:not(:disabled) {
    background-color: #4B5563;
}

/* ========== バッジ ========== */
.badge {
    display: inline-flex;
    align-items: center;
    padding: 0.25rem 0.5rem;
    font-size: 0.75rem;
    font-weight: 500;
    border-radius: 0.25rem;
}

.badge-success {
    background-color: #D1FAE5;
    color: #065F46;
}

.badge-warning {
    background-color: #FEF3C7;
    color: #92400E;
}

.badge-info {
    background-color: #DBEAFE;
    color: #1E40AF;
}

.badge-default {
    background-color: #F3F4F6;
    color: #374151;
}

/* ========== 仮想スクロール ========== */
.virtual-scroll-container {
    overflow-y: auto;
    overflow-x: hidden;
    -webkit-overflow-scrolling: touch;
    will-change: scroll-position;
}

.virtual-scroll-item {
    contain: layout style;
}

/* カスタムスクロールバー */
.virtual-scroll-container::-webkit-scrollbar {
    width: 8px;
}

.virtual-scroll-container::-webkit-scrollbar-track {
    background: #f1f1f1;
    border-radius: 4px;
}

.virtual-scroll-container::-webkit-scrollbar-thumb {
    background: #c1c1c1;
    border-radius: 4px;
}

.virtual-scroll-container::-webkit-scrollbar-thumb:hover {
    background: #a1a1a1;
}

/* ========== トースト通知 ========== */
.toast-container {
    position: fixed;
    bottom: 1rem;
    right: 1rem;
    z-index: 9999;
}

.toast {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.75rem 1rem;
    border-radius: 0.5rem;
    box-shadow: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
    animation: slideInRight 0.3s ease-out;
}

.toast-success {
    background-color: #10B981;
    color: white;
}

.toast-error {
    background-color: #EF4444;
    color: white;
}

.toast-info {
    background-color: #3B82F6;
    color: white;
}

/* ========== レスポンシブ ========== */
@media (max-width: 768px) {
    .container {
        padding-left: 1rem;
        padding-right: 1rem;
    }

    /* カードグリッド調整 */
    .card-grid {
        grid-template-columns: 1fr;
    }

    /* ヘッダー調整 */
    header h1 {
        font-size: 1rem;
    }

    /* サマリーカード調整 */
    .summary-cards {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 480px) {
    .summary-cards {
        grid-template-columns: 1fr;
    }

    /* フィルターボタン調整 */
    .filter-buttons {
        flex-wrap: wrap;
    }

    .filter-buttons button {
        flex: 1 1 45%;
    }
}

/* ========== アクセシビリティ ========== */
@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
}

/* フォーカス表示 */
:focus-visible {
    outline: 2px solid #3B82F6;
    outline-offset: 2px;
}

/* ========== ダークモード対応（将来用） ========== */
@media (prefers-color-scheme: dark) {
    /* 将来のダークモード対応用 */
}

/* ========== 印刷スタイル ========== */
@media print {
    header,
    .btn,
    .toast-container {
        display: none !important;
    }

    body {
        background: white;
    }

    .card {
        box-shadow: none;
        border: 1px solid #e5e7eb;
    }
}