:root {
    --primary-color: #f8c800;
    --primary-hover: #f0c000;
    --bg-color: #fff4b3;
    --grid-color: #ffebb8;
    --pane-bg: #ffffff;
    --text-main: #222222;
    --text-sub: #555555;
    --border-color: #333333;
    --border-style: 2px solid var(--border-color);
    --color-pink: #fa7921;
    --color-blue: #5bc0eb;
}

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

body {
    font-family: 'Noto Sans JP', sans-serif;
    background-color: var(--bg-color);
    background-image: 
        linear-gradient(var(--grid-color) 2px, transparent 2px), 
        linear-gradient(90deg, var(--grid-color) 2px, transparent 2px);
    background-size: 30px 30px;
    color: var(--text-main);
    font-weight: 500;
    letter-spacing: 0.03em;
}

#edit-view {
    display: flex;
    flex-direction: column;
    height: 100vh;
}

header {
    background: #ffffff;
    color: var(--text-main);
    padding: 1rem 2rem;
    border-bottom: var(--border-style);
    z-index: 20;
}

header h1 { font-size: 1.5rem; font-weight: 900; }
header p { font-size: 0.9rem; font-weight: 700; color: var(--text-sub); }

.container {
    display: flex; flex: 1; overflow: hidden; padding: 1rem; gap: 1rem;
}

::-webkit-scrollbar { width: 8px; }
::-webkit-scrollbar-track { background: #fff4b3; }
::-webkit-scrollbar-thumb { background: #f8c800; border-radius: 4px; border: 1px solid #333; }
::-webkit-scrollbar-thumb:hover { background: #e0b400; }

.editor-pane {
    flex: 1; background: var(--pane-bg); border-radius: 12px;
    border: var(--border-style); box-shadow: 4px 4px 0 var(--border-color);
    display: flex; flex-direction: column;
    overflow-y: auto; padding: 1.5rem; min-width: 400px;
}

.editor-pane h2 {
    margin-bottom: 1.5rem; font-size: 1.25rem; font-weight: 900;
    position: relative; display: inline-block;
    border-bottom: none; padding-bottom: 0;
}
.editor-pane h2::after {
    content: ""; position: absolute; bottom: -4px; left: 0; width: 100%; height: 6px;
    background: var(--primary-color); z-index: -1;
}

.form-group-section {
    margin-bottom: 2rem; padding: 1.5rem; background: transparent; 
    border: none; border-radius: 12px;
    box-shadow: none;
}
.form-group-section h3 { font-size: 1.1rem; margin-bottom: 1rem; font-weight: 900; color: var(--text-main); }

.form-group { margin-bottom: 1.5rem; }
.form-group label { display: block; margin-bottom: 0.5rem; font-size: 0.95rem; font-weight: 700; }
.form-group .required { color: var(--color-pink); }

input[type="text"], input[type="url"], input[type="password"], textarea, select {
    width: 100%; padding: 0.8rem; border: var(--border-style); border-radius: 8px; font-family: inherit;
    background: #fff; font-weight: 700; color: var(--text-main);
    box-shadow: inset 2px 2px 0px rgba(0,0,0,0.05);
}
textarea { resize: vertical; }
input[type="file"] { margin-bottom: 0.5rem; font-weight: 700; }

input:focus, textarea:focus, select:focus {
    outline: none; background: #fffdf5; box-shadow: 0 0 0 4px var(--primary-color);
}

.radio-group { display: flex; gap: 1rem; font-size: 0.9rem; font-weight: 700; }
.hidden { display: none !important; }

.character-item, .faq-item-editor { 
    background: #ffffff; padding: 1.5rem; border: var(--border-style); border-radius: 8px; 
    margin-bottom: 1.5rem; margin-top: 0.5rem; position: relative; box-shadow: 4px 4px 0 var(--border-color);
}
.character-item .remove-btn, .faq-item-editor .remove-btn { 
    position: absolute; top: -10px; right: -10px; 
    background: var(--color-pink); color: white; border: var(--border-style); border-radius: 50%; 
    width: 32px; height: 32px; cursor: pointer; font-weight: bold; font-size: 1.2rem;
    box-shadow: 2px 2px 0 var(--border-color); transition: transform 0.1s, box-shadow 0.1s;
    display: flex; justify-content: center; align-items: center; z-index: 10;
}
.character-item .remove-btn:hover, .faq-item-editor .remove-btn:hover {
    transform: translate(-1px, -1px); box-shadow: 3px 3px 0 var(--border-color);
}
.character-item .remove-btn:active, .faq-item-editor .remove-btn:active {
    transform: translate(2px, 2px) !important; box-shadow: 0 0 0 var(--border-color) !important;
}

.btn-primary {
    width: 100%; padding: 1rem; background: var(--primary-color); color: var(--text-main); 
    border: var(--border-style); border-radius: 12px; font-size: 1.1rem; font-weight: 900; 
    cursor: pointer; box-shadow: 4px 4px 0 var(--border-color); transition: transform 0.1s, box-shadow 0.1s;
    margin-top: 1rem;
}
.btn-primary:hover { transform: translate(-2px, -2px); box-shadow: 6px 6px 0 var(--border-color); }
.btn-primary:active { transform: translate(4px, 4px) !important; box-shadow: 0 0 0 var(--border-color) !important; }

.btn-secondary {
    padding: 0.6rem 1.2rem; background: white; color: var(--text-main); border: var(--border-style); 
    border-radius: 8px; cursor: pointer; font-weight: 700; box-shadow: 3px 3px 0 var(--border-color);
    transition: transform 0.1s, box-shadow 0.1s;
}
.btn-secondary:hover { transform: translate(-2px, -2px); box-shadow: 5px 5px 0 var(--border-color); }
.btn-secondary:active { transform: translate(3px, 3px) !important; box-shadow: 0 0 0 var(--border-color) !important; }

.btn-sm { padding: 0.4rem 0.8rem; font-size: 0.9rem; }

.action-section { margin-top: 2rem; }
.save-section { background: transparent; border: none; box-shadow: none; border-radius: 12px; }

.preview-pane {
    flex: 1.2; background: var(--pane-bg); border-radius: 12px; border: var(--border-style); 
    box-shadow: 4px 4px 0 var(--border-color); display: flex; flex-direction: column; padding: 1.5rem;
}
.preview-header { display: flex; justify-content: space-between; align-items: center; margin-bottom: 1rem; }
.preview-tabs { display: flex; gap: 0.5rem; }
.tab-btn { 
    padding: 0.4rem 1.2rem; border: var(--border-style); background: white; cursor: pointer; 
    border-radius: 8px; font-weight: 700; box-shadow: 2px 2px 0 var(--border-color); transition: all 0.1s;
}
.tab-btn.active { background: var(--color-blue); color: white; transform: translate(2px, 2px); box-shadow: 0 0 0 var(--border-color); }
.tab-btn:not(.active):hover { transform: translate(-1px, -1px); box-shadow: 3px 3px 0 var(--border-color); }

.preview-container {
    flex: 1; background: transparent; border: none; border-radius: 0; 
    display: flex; justify-content: center; align-items: center; padding: 0;
    box-shadow: none;
}
.preview-container.sp-view iframe { width: 375px; height: 667px; border-radius: 36px; border: 8px solid #333; box-shadow: none; }
.preview-container.pc-view iframe { width: 100%; height: 100%; border: none; border-radius: 4px; background: transparent; box-shadow: none; }
iframe { transition: all 0.3s ease; }

/* 閲覧モードUI */
#read-view {
    width: 100vw; height: 100vh; display: flex; flex-direction: column; background: #000;
}
.read-header {
    position: absolute; top: 10px; right: 10px; z-index: 100;
}
#read-frame {
    flex: 1; width: 100%; height: 100%; border: none; background: white;
}

/* モーダル */
.modal { position: fixed; top: 0; left: 0; width: 100%; height: 100%; background: rgba(0,0,0,0.7); display: flex; justify-content: center; align-items: center; z-index: 2000; }
.modal-content { background: white; padding: 2rem; border-radius: 12px; border: var(--border-style); box-shadow: 8px 8px 0 var(--border-color); max-width: 500px; width: 90%; text-align: center; position: relative; }
.close-btn { position: absolute; top: 0.5rem; right: 1rem; font-size: 1.5rem; font-weight: 900; cursor: pointer; transition: transform 0.1s; }
.close-btn:hover { transform: scale(1.1); }
.url-box { margin-top: 1rem; padding: 1rem; background: #fffdf5; border: var(--border-style); border-radius: 8px; box-shadow: inset 2px 2px 0 rgba(0,0,0,0.05); word-break: break-all; font-family: monospace; font-weight: bold; }

/* レスポンシブ対応 */
@media screen and (max-width: 900px) {
    .container {
        flex-direction: column;
        overflow-y: auto;
        padding: 0.8rem;
        gap: 1rem;
    }
    .editor-pane {
        min-width: 100%;
        overflow-y: visible;
        flex: none;
        padding: 1rem;
    }
    .preview-pane {
        height: 80vh;
        flex: none;
        padding: 1rem;
    }
    #edit-view {
        height: auto;
    }
    .preview-container.sp-view iframe {
        max-width: 100%;
        box-sizing: border-box;
    }

    /* スマホでの可読性と押しやすさの向上 */
    input[type="text"], input[type="url"], input[type="password"], textarea, select {
        font-size: 16px; /* iOSの自動ズーム防止 */
        padding: 1rem; /* タップエリア拡大 */
    }
    .character-item .remove-btn, .faq-item-editor .remove-btn {
        width: 44px;
        height: 44px;
        top: -15px;
        right: -15px;
        font-size: 1.5rem;
    }
    .btn-secondary, .btn-primary {
        padding: 1rem; /* ボタン全体を大きく押しやすく */
        font-size: 1.1rem;
    }
    .form-group-section {
        padding: 1rem 0; /* スマホでは左右の余白を少し詰める */
    }
    .character-item, .faq-item-editor {
        padding: 1.2rem 1rem;
    }
}