body {
    font-family: "Noto Sans JP", sans-serif;
}

html {
    scroll-padding-top: 80px;
    scroll-behavior: smooth;
}

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

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.animate-slide-down {
    animation: slideDown 0.25s ease-out;
}

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

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.file-item {
    animation: fadeIn 0.3s ease-out;
}

.file-item:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 16px rgba(236, 72, 153, 0.15);
}

.file-item {
    transition: all 0.2s ease;
}

@keyframes progress {
    0% {
        width: 0%;
    }
}

.progress-bar {
    animation: progress 0.3s ease-out;
}

.download-btn {
    position: relative;
    overflow: hidden;
}

.download-btn::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 0;
    height: 0;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.3);
    transform: translate(-50%, -50%);
    transition: width 0.6s, height 0.6s;
}

.download-btn:hover::before {
    width: 300px;
    height: 300px;
}

.size-badge {
    display: inline-block;
    padding: 2px 8px;
    background: linear-gradient(135deg, #fbcfe8 0%, #f9a8d4 100%);
    border-radius: 12px;
    font-size: 0.75rem;
    font-weight: 600;
    color: #831843;
}

.download-badge {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    padding: 2px 8px;
    background: linear-gradient(135deg, #ddd6fe 0%, #c4b5fd 100%);
    border-radius: 12px;
    font-size: 0.75rem;
    font-weight: 600;
    color: #5b21b6;
}

.message-success {
    background: linear-gradient(135deg, #d1fae5 0%, #a7f3d0 100%);
    color: #065f46;
    border-left: 4px solid #10b981;
}

.message-error {
    background: linear-gradient(135deg, #fee2e2 0%, #fecaca 100%);
    color: #991b1b;
    border-left: 4px solid #ef4444;
}

@media (max-width: 768px) {
    .file-item {
        padding: 1rem;
    }

    .file-info {
        flex-direction: column;
        gap: 0.5rem;
    }
}

::-webkit-scrollbar {
    width: 10px;
}

::-webkit-scrollbar-track {
    background: #fce7f3;
}

::-webkit-scrollbar-thumb {
    background: #f9a8d4;
    border-radius: 5px;
}

::-webkit-scrollbar-thumb:hover {
    background: #ec4899;
}

input[type="file"]::file-selector-button {
    padding: 8px 16px;
    background: linear-gradient(135deg, #f9a8d4 0%, #ec4899 100%);
    color: white;
    border: none;
    border-radius: 6px;
    cursor: pointer;
    font-weight: 600;
    transition: all 0.2s;
}

input[type="file"]::file-selector-button:hover {
    background: linear-gradient(135deg, #ec4899 0%, #db2777 100%);
    transform: translateY(-1px);
    box-shadow: 0 4px 8px rgba(236, 72, 153, 0.3);
}

.line-clamp-2 {
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

@keyframes bounce-slow {

    0%,
    100% {
        transform: translateY(0);
    }

    50% {
        transform: translateY(-10px);
    }
}

.animate-bounce-slow {
    animation: bounce-slow 2s infinite;
}

@keyframes fade-in {
    from {
        opacity: 0;
    }

    to {
        opacity: 1;
    }
}

@keyframes scale-in {
    from {
        opacity: 0;
        transform: scale(0.9);
    }

    to {
        opacity: 1;
        transform: scale(1);
    }
}

.animate-fade-in {
    animation: fade-in 0.2s ease-out;
}

.animate-scale-in {
    animation: scale-in 0.3s ease-out;
}

.plyr {
    border-radius: 12px;
    overflow: hidden;
}

.plyr--audio .plyr__controls {
    background: rgba(255, 255, 255, 0.95);
    border-radius: 12px;
    padding: 20px;
}

.plyr--video .plyr__controls {
    background: linear-gradient(to top, rgba(0, 0, 0, 0.8), transparent);
}

.plyr__control--overlaid {
    background: rgba(236, 72, 153, 0.9);
}

.plyr__control--overlaid:hover {
    background: rgba(236, 72, 153, 1);
}

.plyr--full-ui input[type=range] {
    color: #ec4899;
}

.plyr__control.plyr__tab-focus,
.plyr__control:hover,
.plyr__control[aria-expanded=true] {
    background: rgba(236, 72, 153, 0.2);
}

.plyr--audio .plyr__control.plyr__tab-focus,
.plyr--audio .plyr__control:hover {
    background: rgba(236, 72, 153, 0.1);
    color: #ec4899;
}

.plyr__menu__container {
    background: rgba(255, 255, 255, 0.95);
    border-radius: 8px;
}

.plyr--audio {
    background: transparent;
}

.plyr__progress input[type=range] {
    color: #ec4899;
}

.plyr__volume input[type=range] {
    color: #ec4899;
}

/* Toggle Button Styles */
.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border-width: 0;
}

/* トグルボタンのアニメーション強化 */
input[type="checkbox"].peer:checked+div {
    box-shadow: 0 0 0 2px rgba(236, 72, 153, 0.1);
}

input[type="checkbox"].peer:checked+div+div {
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.2);
}

/* ホバー時のエフェクト */
label:has(input[type="checkbox"]:not(:disabled)):hover .peer+div {
    transform: scale(1.05);
}

label:has(input[type="checkbox"]:not(:disabled)):hover .peer+div+div {
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.15);
}

/* アクティブ時のエフェクト */
label:has(input[type="checkbox"]:not(:disabled)):active .peer+div {
    transform: scale(0.95);
}

/* フォーカス時のアウトライン */
input[type="checkbox"].peer:focus+div {
    outline: 2px solid #fbbf24;
    outline-offset: 2px;
}

/* 無効化時のスタイル */
input[type="checkbox"].peer:disabled+div {
    opacity: 0.5;
    cursor: not-allowed;
}

input[type="checkbox"].peer:disabled+div+div {
    opacity: 0.5;
}