@charset "UTF-8";

/* ========================================
   変数定義
   ======================================== */
:root {
    /* Colors - Clean White with Sky Blue Accent */
    --color-bg-body: #f8fafc;
    /* Ice Blue */
    --color-bg-surface: #ffffff;
    --color-bg-surface-translucent: rgba(255, 255, 255, 0.92);

    --color-text-main: #334155;
    /* Slate gray */
    --color-text-sub: #64748b;
    --color-text-muted: #94a3b8;

    --color-primary: #38bdf8;
    /* Sky Blue */
    --color-primary-hover: #0ea5e9;
    --color-primary-light: #f0f9ff;

    --color-accent-video: #f472b6;
    /* Pink */
    --color-accent-utawaku: #fbbf24;
    /* Amber */
    --color-accent-collab: #a78bfa;
    /* Lavender */
    --color-accent-shorts: #fb7185;
    /* Rose */
    --color-accent-external: #22d3ee;
    /* Cyan */

    --color-border: #e2e8f0;
    --color-shadow: rgba(0, 0, 0, 0.04);
    --color-shadow-hover: rgba(56, 189, 248, 0.1);

    /* Gradient */
    --gradient-header: linear-gradient(135deg, #ffffff 0%, #f8fafc 100%);
    --gradient-primary: linear-gradient(135deg, #38bdf8 0%, #22d3ee 100%);

    /* Spacing & Sizes - Condensed */
    --spacing-xs: 4px;
    --spacing-sm: 6px;
    --spacing-md: 12px;
    --spacing-lg: 20px;
    --spacing-xl: 32px;

    --border-radius-sm: 6px;
    --border-radius-md: 12px;
    --border-radius-lg: 20px;
    --border-radius-pill: 50px;

    --header-height: 60px;
}

/* ========================================
   リセット & 基本スタイル
   ======================================== */
html {
    scrollbar-gutter: stable;
    overflow-y: scroll;
}

* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

body {
    font-family: 'LINE Seed JP', 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    background-color: var(--color-bg-body);
    color: var(--color-text-main);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    text-rendering: optimizeLegibility;
    font-feature-settings: "kern" 1;
    padding-top: var(--header-height);
    scrollbar-gutter: stable;
}

a {
    text-decoration: none;
    color: inherit;
    transition: color 0.2s ease;
}

ul,
ol {
    list-style: none;
}

button,
input,
select,
textarea {
    font-family: inherit;
    font-size: 1rem;
    border: none;
    outline: none;
    -webkit-appearance: none;
    /* iOS reset */
    appearance: none;
}

/* ========================================
   ヘッダー
   ======================================== */
header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: var(--header-height);
    background: var(--gradient-header);
    background-color: var(--color-bg-surface-translucent);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    box-shadow: 0 2px 20px var(--color-shadow);
    z-index: 1000;
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 var(--spacing-lg);
    border-bottom: 1px solid var(--color-border);
}

header h1 a {
    font-size: 1.3rem;
    font-weight: 700;
    color: var(--color-text-main);
    letter-spacing: 0.02em;
    line-height: 1;
}

header nav {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
}

header nav a {
    font-size: 0.95rem;
    color: var(--color-text-sub);
    font-weight: 500;
    padding: var(--spacing-xs) var(--spacing-sm);
    border-radius: var(--border-radius-sm);
    line-height: 1;
}

header nav a:hover {
    color: var(--color-primary);
    background-color: var(--color-primary-light);
}

/* Disclaimer */
.disclaimer {
    text-align: center;
    padding: 14px var(--spacing-lg) 0;
    font-size: 0.75rem;
    color: var(--color-text-muted);
}

.disclaimer p {
    margin: 0;
}

/* ========================================
   メインレイアウト
   ======================================== */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: var(--spacing-lg) var(--spacing-lg) var(--spacing-xl);
}

/* ========================================
   検索・フィルタエリア
   ======================================== */
.search-area {
    background-color: var(--color-bg-surface);
    padding: var(--spacing-md) var(--spacing-lg);
    border-radius: var(--border-radius-md);
    box-shadow: 0 4px 16px rgba(0, 0, 0, 0.08);
    margin-bottom: var(--spacing-lg);
    position: sticky;
    top: calc(var(--header-height) + 8px);
    z-index: 100;
    border: 1px solid var(--color-border);
    transition: opacity 0.15s ease;
}

/* モバイル用: 検索エリア非表示 */
.search-area.search-hidden {
    opacity: 0;
    pointer-events: none;
    transition: none;
}

.search-row {
    display: flex;
    gap: var(--spacing-md);
    align-items: center;
    flex-wrap: wrap;
}

.search-input-wrapper {
    flex: 1;
    position: relative;
    min-width: 280px;
}

.search-input {
    width: 100%;
    padding: 12px 40px 12px 16px;
    background-color: var(--color-bg-body);
    border: 1px solid transparent;
    border-radius: var(--border-radius-sm);
    transition: all 0.2s ease;
    font-size: 0.95rem;
}

.search-input:focus {
    background-color: var(--color-bg-surface);
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px var(--color-primary-light);
}

.clear-btn {
    position: absolute;
    right: 12px;
    top: 50%;
    transform: translateY(-50%);
    background: none;
    border: none;
    color: var(--color-text-muted);
    font-size: 1.2rem;
    cursor: pointer;
    padding: 0 4px;
}

.clear-btn:hover {
    color: var(--color-text-sub);
}

.filter-select {
    padding: 0 var(--spacing-lg) 0 var(--spacing-md);
    background-color: var(--color-bg-body);
    border-radius: var(--border-radius-sm);
    color: var(--color-text-main);
    cursor: pointer;
    width: 130px;
    -webkit-appearance: none;
    appearance: none;
    background-image: url("data:image/svg+xml;charset=UTF-8,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%235f7488' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3e%3cpolyline points='6 9 12 15 18 9'%3e%3c/polyline%3e%3c/svg%3e");
    background-repeat: no-repeat;
    background-position: right 10px center;
    background-size: 16px;
    transition: all 0.2s ease;
}

.filter-select:hover {
    background-color: #eef2f5;
}

.btn-clear-all {
    padding: 0 var(--spacing-md);
    background-color: transparent;
    color: var(--color-text-sub);
    cursor: pointer;
    font-size: 0.9rem;
    border-radius: var(--border-radius-sm);
    min-width: 50px;
}

.btn-clear-all:hover {
    background-color: var(--color-bg-body);
    color: var(--color-text-main);
}

.stats {
    font-size: 0.8rem;
    color: var(--color-text-muted);
    white-space: nowrap;
    min-width: 90px;
    text-align: right;
}

@media (max-width: 600px) {
    .search-input-wrapper {
        min-width: 100%;
        order: -1;
    }

    .search-row {
        gap: 6px;
    }

    .filter-select {
        flex: 1 1 0;
        min-width: 80px;
        width: auto;
    }

    .stats {
        flex: 0 0 60px;
        width: 60px;
        min-width: 60px;
        font-size: 0.7rem;
        text-align: right;
    }

    .btn-clear-all {
        flex: 0 0 auto;
        padding: 0 4px;
        font-size: 0.75rem;
    }
}

/* ========================================
   曲リスト
   ======================================== */
.song-list {
    display: flex;
    /* Revert to flex */
    flex-direction: column;
    gap: 16px;
    /* Increased gap for stream cards */
}

/* ========================================
   配信セクション（軽量ヘッダー）
   ======================================== */
.stream-section {
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.stream-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 12px;
    padding: 8px 12px;
    margin-top: 10px;
    margin-bottom: 2px;
    background: rgba(99, 102, 241, 0.06);
    border-radius: 6px;
}

.stream-section:first-child .stream-header {
    margin-top: 0;
}

.stream-title {
    font-size: 0.88rem;
    font-weight: 500;
    color: #475569;
    text-decoration: none;
    flex: 1;
    min-width: 0;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.stream-title:hover {
    color: var(--color-primary);
}

.stream-meta {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 0.75rem;
    color: var(--color-text-sub);
    flex-shrink: 0;
}

.stream-song-count {
    color: var(--color-text-sub);
    cursor: pointer;
    transition: color 0.2s;
}

.stream-song-count:hover {
    color: var(--color-primary);
}

/* 配信セクション内では日付を非表示（ヘッダーに表示されているため） */
.stream-section .song-date-time {
    display: none;
}

/* 配信セクション内ではカテゴリタグを非表示（ヘッダーに表示されているため） */
.stream-section .song-tags .tag-video,
.stream-section .song-tags .tag-utawaku,
.stream-section .song-tags .tag-external,
.stream-section .song-tags .tag-other {
    display: none;
}

/* Mobile */
@media (max-width: 768px) {
    .stream-header {
        flex-direction: column;
        align-items: flex-start;
        gap: 4px;
        padding: 8px 10px;
    }

    .stream-title {
        white-space: normal;
    }
}

.song-item {
    background-color: var(--color-bg-surface);
    border-radius: var(--border-radius-md);
    padding: 12px 16px;
    border: 1px solid var(--color-border);
    display: flex;
    flex-direction: row;
    align-items: center;
    justify-content: space-between;
    position: relative;
    transition: all 0.2s ease;
    box-shadow: 0 2px 8px var(--color-shadow);
}

.song-item:hover {
    background-color: #ffffff;
    border-color: var(--color-primary);
    box-shadow: 0 0 0 1px var(--color-primary);
}

/* Left Group: Title & Artist */
.song-info-left {
    display: flex;
    align-items: center;
    gap: 12px;
    flex: 1;
    /* Allow taking available space */
    min-width: 0;
    margin-right: 16px;
    /* Space before right group */
}

.song-title {
    font-size: 0.92rem;
    font-weight: 600;
    font-family: 'LINE Seed JP', -apple-system, BlinkMacSystemFont, sans-serif;
    margin: 0;
    line-height: 1.4;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.song-title .clickable-title {
    color: #1e293b;
    text-decoration: none;
    cursor: pointer;
    transition: color 0.2s;
}

.song-title .clickable-title:hover {
    color: var(--color-primary);
    text-decoration: underline;
}

.song-artist {
    font-size: 0.8rem;
    color: #64748b;
}

.song-meta {
    display: flex;
    align-items: center;
    gap: 16px;
    font-size: 0.85rem;
    color: var(--color-text-sub);
    white-space: nowrap;
}

/* Right Group: Meta Data */
.song-info-right {
    display: flex;
    align-items: center;
    gap: 16px;
    flex-shrink: 0;
}

.song-tags {
    /* PC: Show tags first, then date on right edge */
    order: 1;
}

.song-date-time {
    display: flex;
    gap: 8px;
    align-items: center;
    order: 2;
    /* Ensure Date is on the far right */
    min-width: 90px;
    /* Reduced width since timestamp is gone */
    justify-content: flex-end;
}

.timestamp {
    color: var(--color-text-sub);
    display: inline-flex;
    align-items: center;
    font-size: 0.8rem;
    font-weight: 500;
}

/* Timestamp as Link Styling */
/* Timestamp as Link Styling */
a.timestamp-link {
    color: #27ae60;
    /* Green to distinguish from blue tags */
    text-decoration: none;
    cursor: pointer;
    padding: 2px 8px 2px 6px;
    border-radius: 4px;
    background-color: rgba(39, 174, 96, 0.1);
    border: 1px solid rgba(39, 174, 96, 0.2);
    transition: all 0.2s ease;
    display: inline-flex;
    align-items: center;
    gap: 4px;
    font-weight: 600;
}

a.timestamp-link:hover {
    background-color: #27ae60;
    color: white;
    text-decoration: none;
    border-color: #27ae60;
    box-shadow: 0 2px 4px rgba(39, 174, 96, 0.2);
}

.play-icon {
    font-size: 0.7rem;
    position: relative;
    top: -1px;
}

.artist-link {
    cursor: pointer;
    font-weight: 500;
}

.artist-link:hover {
    color: var(--color-primary);
    text-decoration: underline;
}

/* Tags */
.tag {
    display: inline-flex;
    align-items: center;
    padding: 2px 10px;
    border-radius: var(--border-radius-pill);
    font-size: 0.75rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s;
}

.tag-video {
    background-color: #fde8e7;
    color: var(--color-accent-video);
}

.tag-video:hover {
    background-color: var(--color-accent-video);
    color: white;
}

.tag-utawaku {
    background-color: #fef5e6;
    color: var(--color-accent-utawaku);
}

.tag-utawaku:hover {
    background-color: var(--color-accent-utawaku);
    color: white;
}

.tag-collab {
    background-color: #f5eef8;
    /* Light purple tint */
    color: var(--color-accent-collab);
    border: 1px solid transparent;
    margin-left: 4px;
}

.tag-collab:first-of-type {
    margin-left: 0;
}

.tag-collab:hover {
    border-color: var(--color-accent-collab);
}

.tag-shorts {
    background-color: #fff3e6;
    color: #e67e22;
}

.tag-shorts:hover {
    background-color: #e67e22;
    color: white;
}

.tag-external {
    background-color: #e6f7ff;
    /* Soft Cyan/Blue */
    color: #0097e6;
}

.tag-external:hover {
    background-color: #0097e6;
    color: white;
}

.tag-acapella {
    background-color: var(--color-primary-light);
    color: var(--color-primary);
}

.tag-acapella:hover {
    background-color: var(--color-primary);
    color: white;
}

.song-actions {
    position: absolute;
    right: 8px;
    top: 50%;
    transform: translateY(-50%);
    display: flex;
    gap: 4px;
    opacity: 0;
    /* Hidden by default on PC until hover */
    margin: 0;
    transition: opacity 0.2s;
    background-color: var(--color-bg-surface);
    /* Cover underlying content if needed */
    padding-left: 8px;
}

.song-item:hover .song-actions {
    opacity: 1;
}

.btn-icon {
    background: none;
    cursor: pointer;
    color: var(--color-text-muted);
    font-size: 0.85rem;
    padding: 4px 8px;
    border-radius: var(--border-radius-sm);
}

.btn-icon:hover {
    background-color: var(--color-bg-body);
    color: var(--color-text-main);
}

.btn-delete:hover {
    color: var(--color-accent-video);
    background-color: #fde8e7;
}

/* Load More */
.load-more {
    display: block;
    margin: var(--spacing-xl) auto 0;
    padding: 12px 32px;
    background: var(--gradient-primary);
    border: none;
    border-radius: var(--border-radius-pill);
    color: #ffffff;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s ease;
    box-shadow: 0 4px 15px rgba(56, 189, 248, 0.3);
}

.load-more:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 25px rgba(56, 189, 248, 0.4);
}

/* ローディング */
.loading {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: var(--spacing-xl) 0;
    color: var(--color-text-muted);
    gap: var(--spacing-md);
}

.loading-spinner {
    width: 32px;
    height: 32px;
    border: 3px solid var(--color-border);
    border-top-color: var(--color-primary);
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
}

@keyframes spin {
    to {
        transform: rotate(360deg);
    }
}

/* ========================================
   モーダル
   ======================================== */
.modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.4);
    backdrop-filter: blur(4px);
    z-index: 2000;
    justify-content: center;
    align-items: center;
    opacity: 0;
    animation: fadeIn 0.2s forwards;
}

.modal.modal-active {
    display: flex;
}

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

.modal-content {
    background-color: var(--color-bg-surface);
    width: 90%;
    max-width: 500px;
    max-height: 90vh;
    overflow-y: auto;
    border-radius: var(--border-radius-lg);
    padding: var(--spacing-lg);
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.2);
}

.modal-content h3 {
    font-size: 1.25rem;
    margin-bottom: var(--spacing-lg);
    text-align: center;
}

.form-group {
    margin-bottom: var(--spacing-md);
}

.form-group label {
    display: block;
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--color-text-sub);
    margin-bottom: var(--spacing-xs);
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 10px;
    background-color: var(--color-bg-body);
    border-radius: var(--border-radius-sm);
    border: 1px solid transparent;
    transition: border-color 0.2s;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    border-color: var(--color-primary);
    background-color: var(--color-bg-surface);
}

.modal-buttons {
    display: flex;
    gap: var(--spacing-md);
    margin-top: var(--spacing-lg);
}

.btn {
    flex: 1;
    padding: 12px;
    border-radius: var(--border-radius-sm);
    font-weight: 600;
    cursor: pointer;
    text-align: center;
    transition: filter 0.2s;
}

.btn:hover {
    filter: brightness(0.95);
}

.btn-primary {
    background-color: var(--color-primary);
    color: white;
}

.btn-secondary {
    background-color: var(--color-bg-body);
    color: var(--color-text-main);
}

.btn-delete-confirm {
    background-color: var(--color-accent-video);
    color: white;
}

.no-results {
    text-align: center;
    padding: var(--spacing-xl);
    color: var(--color-text-muted);
}

/* ========================================
   フォーム固有（add.html用）
   ======================================== */
.form-area {
    background-color: var(--color-bg-surface);
    padding: var(--spacing-lg);
    border-radius: var(--border-radius-md);
    box-shadow: 0 4px 20px var(--color-shadow);
    margin-bottom: var(--spacing-xl);
    max-width: 800px;
    margin-left: auto;
    margin-right: auto;
}

.form-row {
    display: flex;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-md);
}

.form-row .form-group {
    flex: 1;
    margin-bottom: 0;
}

.form-hint {
    font-size: 0.8rem;
    color: var(--color-text-muted);
    margin-top: 4px;
}

.output-area {
    background-color: var(--color-bg-surface);
    padding: var(--spacing-lg);
    border-radius: var(--border-radius-md);
    border: 1px solid var(--color-border);
    margin-top: var(--spacing-xl);
}

/* ========================================
   モバイル対応 (max-width: 600px)
   ======================================== */
@media (max-width: 600px) {

    /* --- ヘッダー --- */
    header {
        padding: 0 var(--spacing-md);
    }

    header h1 a {
        font-size: 1.1rem;
    }

    /* READ_ONLY でナビリンクが1つだけの場合のバランス調整 */
    header nav a:only-child {
        font-size: 0.85rem;
    }

    /* --- フォーム（add.html用） --- */
    .form-row {
        flex-direction: column;
        gap: 0;
    }

    .form-row .form-group {
        margin-bottom: var(--spacing-md);
    }

    /* --- 検索エリア --- */
    .filter-select {
        height: 44px;
        line-height: 44px;
        padding-top: 0;
        padding-bottom: 0;
    }

    /* --- 曲カード --- */
    .song-item {
        flex-direction: column;
        align-items: flex-start;
        padding: 8px 10px;
        gap: 4px;
    }

    /* Left Group */
    .song-info-left {
        flex-direction: column;
        align-items: flex-start;
        width: 100%;
        margin-right: 0;
        gap: 0;
        min-height: auto;
    }

    .song-title {
        white-space: normal;
        overflow: visible;
        width: 100%;
        font-size: 0.95rem;
        line-height: 1.3;
        margin-bottom: 2px;
    }

    .song-artist {
        margin-left: 0;
        font-size: 0.75rem;
        color: var(--color-text-sub);
    }

    /* 再生ボタン: 右上固定 */
    .song-play-action {
        position: absolute;
        top: 10px;
        right: 10px;
        margin: 0;
        z-index: 2;
    }

    /* タイトル・アーティストは再生ボタン分だけ右余白（READ_ONLYデフォルト） */
    .song-title,
    .song-artist {
        padding-right: 80px;
    }

    /* 編集/削除ボタン: 再生ボタンの左に配置（ローカルのみ表示） */
    .song-actions {
        top: 12px;
        right: auto;
        left: calc(100% - 180px);
        opacity: 0.7;
        transform: none;
        gap: 4px;
    }

    /* 編集ボタンがある場合はタイトルの余白を広げる */
    .song-item:has(.song-actions) .song-title,
    .song-item:has(.song-actions) .song-artist {
        padding-right: 170px;
    }

    /* Right Group */
    .song-info-right {
        width: 100%;
        justify-content: flex-start;
        flex-wrap: wrap;
        gap: 4px;
        margin-top: 2px;
        padding-top: 4px;
        border-top: 1px dashed var(--color-border);
    }

    .song-tags {
        order: 1;
    }

    .song-date-time {
        font-size: 0.75rem;
        order: 2;
        min-width: auto;
        margin-left: auto;
    }

    /* --- もっと見るボタン --- */
    .load-more {
        width: 100%;
        padding: 14px;
        border-radius: var(--border-radius-sm);
    }
}