:root {
    --bg: #f7f8f5;
    --panel: #ffffff;
    --text: #1d252c;
    --muted: #6b747d;
    --line: #d9ded8;
    --accent: #2f6f73;
    --accent-dark: #24575a;
    --danger: #b54747;
    --warn: #946200;
    --ok: #39704a;
}

* { box-sizing: border-box; }

body {
    margin: 0;
    background: var(--bg);
    color: var(--text);
    font-family: Arial, "Noto Sans TC", "Microsoft JhengHei", sans-serif;
    font-size: 15px;
}

a { color: var(--accent-dark); }

.topbar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 24px;
    min-height: 56px;
    padding: 0 24px;
    background: #233235;
    color: #fff;
}

.brand {
    color: #fff;
    font-size: 18px;
    font-weight: 700;
    text-decoration: none;
    white-space: nowrap;
}

.nav { display: flex; gap: 4px; flex-wrap: wrap; }
.nav a {
    color: #dbe7e4;
    text-decoration: none;
    padding: 8px 10px;
    border-radius: 6px;
}
.nav a:hover { background: rgba(255,255,255,.1); color: #fff; }

.page {
    width: min(1500px, calc(100% - 32px));
    margin: 24px auto 48px;
}

.page-head {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    gap: 16px;
    margin-bottom: 16px;
}

h1, h2 { margin: 0; }
h1 { font-size: 28px; }
h2 { font-size: 18px; margin-bottom: 14px; }
p { margin: 6px 0 0; color: var(--muted); line-height: 1.6; }

.notice {
    padding: 10px 12px;
    border: 1px solid var(--line);
    background: #fff;
    border-radius: 6px;
    margin-bottom: 14px;
}
.notice.success { border-color: #9ac4a8; color: var(--ok); }
.notice.error { border-color: #d7aaa4; color: var(--danger); }

.toolbar, .inline-form {
    display: flex;
    gap: 10px;
    flex-wrap: wrap;
    align-items: center;
    background: var(--panel);
    border: 1px solid var(--line);
    border-radius: 8px;
    padding: 12px;
    margin-bottom: 16px;
}

.toolbar input[type="search"] { min-width: min(520px, 100%); flex: 1; }

input, select, textarea {
    width: 100%;
    border: 1px solid #c7cec8;
    border-radius: 6px;
    padding: 9px 10px;
    background: #fff;
    color: var(--text);
    font: inherit;
}
textarea { resize: vertical; }
label { display: grid; gap: 6px; color: #37424a; font-weight: 600; }
label input, label select, label textarea { font-weight: 400; }
.field-label { color: #37424a; font-weight: 600; margin-bottom: 6px; }
.field-hint { color: var(--muted); font-size: 13px; font-weight: 400; min-height: 18px; }

.button {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-height: 38px;
    padding: 8px 12px;
    border: 1px solid #b8c2bd;
    border-radius: 6px;
    background: #fff;
    color: var(--text);
    text-decoration: none;
    cursor: pointer;
    font: inherit;
    white-space: nowrap;
}
.button.primary { background: var(--accent); border-color: var(--accent); color: #fff; }
.button.ghost { background: transparent; }
.button.small { min-height: 30px; padding: 5px 9px; font-size: 13px; }
.button.danger { border-color: #c88888; color: var(--danger); }
.button:hover { filter: brightness(.97); }
.button:disabled { cursor: wait; opacity: .65; }

.table-wrap {
    overflow-x: auto;
    background: var(--panel);
    border: 1px solid var(--line);
    border-radius: 8px;
}
.table-wrap.compact { max-width: 980px; }

.data-table {
    width: 100%;
    border-collapse: collapse;
    min-width: 980px;
}
.data-table th, .data-table td {
    border-bottom: 1px solid #e7eae6;
    padding: 10px 12px;
    text-align: left;
    vertical-align: top;
}
.data-table th {
    background: #eef2ed;
    color: #4a555c;
    font-size: 13px;
    white-space: nowrap;
}
.data-table th[data-sort] {
    cursor: pointer;
    user-select: none;
    position: relative;
    padding-right: 24px;
}
.data-table th[data-sort]::after {
    content: "↕";
    position: absolute;
    right: 8px;
    color: #8a949a;
    font-size: 12px;
}
.data-table th.sort-asc::after { content: "↑"; color: var(--accent-dark); }
.data-table th.sort-desc::after { content: "↓"; color: var(--accent-dark); }
.data-table th[data-sort]:hover { background: #e3e9e3; }
.data-table tr:last-child td { border-bottom: 0; }
.books-table th:first-child, .books-table td:first-child {
    width: 88px;
    min-width: 88px;
    max-width: 88px;
    white-space: nowrap;
}
.books-table .cover-col { width: 76px; }
.title-main { font-weight: 700; line-height: 1.45; }
.muted { color: var(--muted); font-size: 13px; line-height: 1.5; }
.empty { color: var(--muted); text-align: center; padding: 32px; }
.actions { text-align: right; }

.cover-thumb, .cover-preview {
    width: 54px;
    height: 76px;
    object-fit: cover;
    border-radius: 4px;
    border: 1px solid var(--line);
    background: #f0f2f0;
}
.cover-empty {
    display: grid;
    place-items: center;
    width: 54px;
    height: 76px;
    border: 1px dashed #b8c2bd;
    border-radius: 4px;
    color: var(--muted);
    font-size: 11px;
    text-align: center;
}
.cover-preview-wrap { margin-top: 14px; }
.cover-preview { display: none; width: 120px; height: 170px; }

.status, .pill {
    display: inline-flex;
    align-items: center;
    min-height: 24px;
    padding: 3px 8px;
    border-radius: 999px;
    font-size: 13px;
    background: #edf0ed;
    white-space: nowrap;
}
.status-owned { background: #e2f2e6; color: var(--ok); }
.status-blacklisted { background: #f5e5e3; color: var(--danger); }
.status-ordered { background: #fff0c7; color: var(--warn); }
.status-wishlist { background: #e5eff5; color: #2a607e; }

.form-grid {
    display: grid;
    grid-template-columns: minmax(0, 2fr) minmax(280px, 1fr);
    gap: 16px;
    align-items: start;
}
.panel {
    background: var(--panel);
    border: 1px solid var(--line);
    border-radius: 8px;
    padding: 16px;
}
.panel.wide { grid-column: span 1; }
.panel-head { display: flex; justify-content: space-between; gap: 12px; align-items: center; }
.fields { display: grid; gap: 12px; }
.fields.two { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.span-2 { grid-column: span 2; }
.form-actions { grid-column: 1 / -1; display: flex; gap: 10px; }
.danger-form { margin-top: 20px; }

.tag-field { display: grid; gap: 6px; margin-bottom: 14px; }
.tag-editor {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 6px;
    min-height: 44px;
    padding: 7px;
    border: 1px solid #c7cec8;
    border-radius: 6px;
    background: #fff;
    cursor: text;
}
.tag-chip-list { display: contents; }
.tag-chip {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    min-height: 28px;
    padding: 4px 8px;
    border: 1px solid #b9d2cf;
    border-radius: 999px;
    background: #e9f4f1;
    color: #244d50;
    font: inherit;
    font-size: 13px;
    cursor: pointer;
}
.tag-chip span { color: #5b7374; font-weight: 700; }
.tag-input {
    flex: 1 1 150px;
    min-width: 120px;
    border: 0;
    padding: 4px;
    outline: none;
}

.taxonomy-field {
    display: grid;
    gap: 8px;
    margin-bottom: 18px;
    position: relative;
}
.taxonomy-add-row {
    display: grid;
    grid-template-columns: minmax(0, 1fr) auto;
    gap: 8px;
}
.taxonomy-list {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    min-height: 34px;
    padding: 8px;
    border: 1px solid #e2e7e1;
    border-radius: 6px;
    background: #fbfcfa;
}
.taxonomy-item {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    min-height: 32px;
    padding: 5px 7px 5px 10px;
    border: 1px solid #b9d2cf;
    border-radius: 4px;
    background: #ffffff;
    color: #223236;
    box-shadow: 0 1px 0 rgba(20, 35, 32, .04);
}
.taxonomy-remove {
    border: 1px solid #d4b5b5;
    border-radius: 4px;
    background: #fff5f4;
    color: var(--danger);
    cursor: pointer;
    font: inherit;
    font-size: 12px;
    padding: 3px 6px;
}
.taxonomy-suggestions {
    position: absolute;
    z-index: 5;
    top: 70px;
    left: 0;
    right: 0;
    display: grid;
    gap: 2px;
    max-height: 220px;
    overflow: auto;
    padding: 6px;
    border: 1px solid #c7cec8;
    border-radius: 6px;
    background: #fff;
    box-shadow: 0 8px 20px rgba(20, 35, 32, .12);
}
.taxonomy-suggestion {
    border: 0;
    border-radius: 4px;
    background: #fff;
    color: var(--text);
    cursor: pointer;
    font: inherit;
    padding: 8px 10px;
    text-align: left;
}
.taxonomy-suggestion:hover { background: #eef4f1; }

.source-list { display: grid; gap: 10px; }
.source-row {
    display: grid;
    grid-template-columns: 180px 110px minmax(220px, 1fr) minmax(160px, 1fr) auto;
    gap: 10px;
    align-items: end;
    border-top: 1px solid #edf0ed;
    padding-top: 10px;
}
.checkline { display: flex; gap: 6px; align-items: center; font-weight: 400; white-space: nowrap; }
.checkline input { width: auto; }
.subsection { margin-top: 22px; }

@media (max-width: 900px) {
    .topbar, .page-head { flex-direction: column; align-items: stretch; }
    .page { width: min(100% - 20px, 1500px); margin-top: 14px; }
    .form-grid { grid-template-columns: 1fr; }
    .fields.two { grid-template-columns: 1fr; }
    .span-2 { grid-column: auto; }
    .source-row { grid-template-columns: 1fr; }
}