/* ======================================================================
 *  班级图书借阅登记表 /tool/class-library-log
 *  风格：账本 —— 墨绿 + 米纸 + 账本线 + 印章感状态标
 *  深色模式随站点 [data-theme="dark"]，本页变量作用域 .cbl-page
 * ====================================================================== */

.cbl-page {
    --cbl-ink: #166534;
    --cbl-ink-2: #15803d;
    --cbl-paper: #fbf9f2;
    --cbl-paper-2: #f4f0e2;
    --cbl-line: #ddd5bd;
    --cbl-text: #2b3026;
    --cbl-muted: #85856e;
    --cbl-late: #dc2626;
    --cbl-shadow: 0 10px 28px -14px rgba(22, 101, 52, .30);
    color: var(--cbl-text);
    padding-bottom: 70px;
    background:
        linear-gradient(transparent 31px, color-mix(in srgb, var(--cbl-line) 55%, transparent) 32px) 0 0 / 100% 32px,
        radial-gradient(820px 360px at 6% -8%, rgba(22, 163, 74, .09), transparent 60%),
        radial-gradient(640px 320px at 96% 2%, rgba(180, 150, 60, .08), transparent 55%);
}
:root[data-theme="dark"] .cbl-page {
    --cbl-ink: #4ade80;
    --cbl-ink-2: #34d399;
    --cbl-paper: #141c15;
    --cbl-paper-2: #1a241b;
    --cbl-line: #2e3d2f;
    --cbl-text: #e5eade;
    --cbl-muted: #8e9a8a;
    --cbl-late: #f87171;
    --cbl-shadow: 0 14px 32px -18px rgba(0, 0, 0, .7);
}
:root[data-theme="dark"] .cbl-page {
    background:
        linear-gradient(transparent 31px, rgba(78, 110, 80, .14) 32px) 0 0 / 100% 32px,
        radial-gradient(820px 360px at 6% -8%, rgba(34, 197, 94, .07), transparent 60%);
}

/* ---------- 面包屑 ---------- */
.cbl-crumb {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 13px;
    color: var(--cbl-muted);
    padding: 18px 0 0;
}
.cbl-crumb a { color: var(--cbl-muted); text-decoration: none; }
.cbl-crumb a:hover { color: var(--cbl-ink); }
.cbl-crumb b { color: var(--cbl-text); font-weight: 600; }

/* ---------- Hero ---------- */
.cbl-hero { text-align: center; padding: 22px 0 26px; }
.cbl-hero-ic {
    display: inline-grid;
    place-items: center;
    width: 62px;
    height: 62px;
    font-size: 30px;
    border-radius: 18px;
    background: var(--cbl-paper);
    border: 1.5px solid var(--cbl-ink);
    box-shadow: var(--cbl-shadow);
    margin-bottom: 12px;
    transform: rotate(-3deg);
}
.cbl-hero h1 {
    font-size: clamp(26px, 4vw, 36px);
    font-weight: 900;
    letter-spacing: -.02em;
    margin: 0 0 10px;
}
.cbl-hero p {
    max-width: 600px;
    margin: 0 auto;
    font-size: 15px;
    line-height: 1.8;
    color: var(--cbl-muted);
}
.cbl-hero em { font-style: normal; font-weight: 800; color: var(--cbl-ink); }

/* ---------- 统计卡 ---------- */
.cbl-stats {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 12px;
    margin-bottom: 18px;
}
.cbl-stat {
    background: var(--cbl-paper);
    border: 1px solid var(--cbl-line);
    border-radius: 14px;
    padding: 14px 12px;
    text-align: center;
    box-shadow: var(--cbl-shadow);
}
.cbl-stat span { display: block; font-size: 12.5px; color: var(--cbl-muted); margin-bottom: 6px; }
.cbl-stat b { font-size: 26px; font-weight: 900; font-variant-numeric: tabular-nums; }
.cbl-stat.is-borrow b { color: #2563eb; }
.cbl-stat.is-late b { color: var(--cbl-late); }
.cbl-stat.is-back b { color: var(--cbl-ink); }
:root[data-theme="dark"] .cbl-stat.is-borrow b { color: #60a5fa; }

/* ---------- 工具栏 ---------- */
.cbl-toolbar {
    display: flex;
    align-items: center;
    flex-wrap: wrap;
    gap: 9px;
    background: var(--cbl-paper);
    border: 1px solid var(--cbl-line);
    border-radius: 14px;
    padding: 12px 14px;
    margin-bottom: 18px;
    box-shadow: var(--cbl-shadow);
}
.cbl-days {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    font-size: 13px;
    color: var(--cbl-muted);
    margin-right: 4px;
}
.cbl-days input {
    width: 62px;
    font: inherit;
    font-size: 14px;
    font-weight: 800;
    text-align: center;
    color: var(--cbl-text);
    background: var(--cbl-paper-2);
    border: 1px solid var(--cbl-line);
    border-radius: 8px;
    padding: 6px 4px;
    outline: none;
}
.cbl-days input:focus { border-color: var(--cbl-ink); }
.cbl-mini {
    font: inherit;
    font-size: 13px;
    font-weight: 700;
    color: var(--cbl-ink);
    background: transparent;
    border: 1px solid color-mix(in srgb, var(--cbl-ink) 40%, transparent);
    border-radius: 999px;
    padding: 7px 15px;
    cursor: pointer;
    transition: all .15s;
}
.cbl-mini:hover { color: #fff; background: var(--cbl-ink); border-color: var(--cbl-ink); }
.cbl-mini.is-danger { color: var(--cbl-late); border-color: color-mix(in srgb, var(--cbl-late) 45%, transparent); }
.cbl-mini.is-danger:hover { color: #fff; background: var(--cbl-late); border-color: var(--cbl-late); }

/* ---------- 登记表 ---------- */
.cbl-ledger {
    background: var(--cbl-paper);
    border: 1px solid var(--cbl-line);
    border-radius: 16px;
    padding: 18px 20px;
    box-shadow: var(--cbl-shadow);
    position: relative;
}
.cbl-ledger::before {
    content: "图书角 · 借阅登记";
    position: absolute;
    top: -11px;
    left: 26px;
    font-size: 11px;
    font-weight: 800;
    letter-spacing: .3em;
    color: var(--cbl-ink);
    background: var(--cbl-paper);
    padding: 0 10px;
    border-radius: 999px;
    border: 1px solid var(--cbl-line);
}
.cbl-table-wrap { overflow-x: auto; }
.cbl-table { width: 100%; border-collapse: collapse; min-width: 720px; }
.cbl-table th {
    font-size: 12px;
    font-weight: 800;
    letter-spacing: .06em;
    color: var(--cbl-ink);
    text-align: left;
    padding: 9px 8px;
    border-bottom: 2px solid var(--cbl-ink);
    white-space: nowrap;
}
.cbl-table td { padding: 6px 8px; border-bottom: 1px solid var(--cbl-line); }
.cbl-table tr.is-late-row td { background: color-mix(in srgb, var(--cbl-late) 6%, transparent); }
.cbl-col-no { width: 40px; color: var(--cbl-muted); font-size: 12.5px; }
.cbl-col-man { width: 110px; }
.cbl-col-date { width: 158px; }
.cbl-col-state { width: 96px; }
.cbl-col-del { width: 36px; }
.cbl-table input {
    width: 100%;
    font: inherit;
    font-size: 13.5px;
    color: var(--cbl-text);
    background: transparent;
    border: 1px solid transparent;
    border-radius: 8px;
    padding: 7px 8px;
    outline: none;
    transition: border-color .15s, background .15s;
}
.cbl-table input:hover { border-color: var(--cbl-line); }
.cbl-table input:focus {
    border-color: var(--cbl-ink);
    background: color-mix(in srgb, var(--cbl-ink) 7%, transparent);
}
.cbl-tag {
    display: inline-block;
    font-size: 11.5px;
    font-weight: 800;
    border-radius: 999px;
    padding: 4px 10px;
    white-space: nowrap;
}
.cbl-tag.is-back {
    color: var(--cbl-ink);
    background: color-mix(in srgb, var(--cbl-ink) 12%, transparent);
}
.cbl-tag.is-borrow {
    color: #2563eb;
    background: rgba(37, 99, 235, .10);
}
:root[data-theme="dark"] .cbl-tag.is-borrow { color: #93c5fd; }
.cbl-tag.is-late {
    color: var(--cbl-late);
    background: color-mix(in srgb, var(--cbl-late) 12%, transparent);
}
.cbl-del {
    font: inherit;
    font-size: 12px;
    color: var(--cbl-muted);
    background: transparent;
    border: 0;
    cursor: pointer;
    padding: 4px 7px;
    border-radius: 7px;
}
.cbl-del:hover { color: var(--cbl-late); background: color-mix(in srgb, var(--cbl-late) 9%, transparent); }

.cbl-empty {
    text-align: center;
    font-size: 14px;
    color: var(--cbl-muted);
    padding: 34px 0 20px;
    margin: 0;
}
.cbl-note {
    margin-top: 14px;
    font-size: 12px;
    color: var(--cbl-muted);
}

/* ---------- 逾期清单 ---------- */
.cbl-late-box {
    margin-top: 20px;
    background: var(--cbl-paper);
    border: 1.5px solid color-mix(in srgb, var(--cbl-late) 40%, transparent);
    border-radius: 16px;
    padding: 18px 22px;
    box-shadow: var(--cbl-shadow);
}
.cbl-late-box h2 {
    font-size: 16px;
    font-weight: 900;
    color: var(--cbl-late);
    margin: 0 0 12px;
}
.cbl-late-box ul { margin: 0; padding: 0; list-style: none; display: grid; gap: 8px; }
.cbl-late-box li {
    font-size: 13.5px;
    line-height: 1.7;
    padding: 8px 12px;
    background: color-mix(in srgb, var(--cbl-late) 6%, transparent);
    border-radius: 10px;
}
.cbl-late-box li b { font-weight: 800; }
.cbl-late-tip {
    margin: 12px 0 0;
    font-size: 12.5px;
    color: var(--cbl-muted);
    font-style: italic;
}

/* ---------- 底部：口径说明表（neo 体系） ---------- */
.neo-note-table { width: 100%; border-collapse: collapse; }
.neo-note-table th,
.neo-note-table td {
    text-align: left;
    padding: 11px 14px;
    border-bottom: 1px solid color-mix(in srgb, var(--cbl-line) 70%, transparent);
    font-size: 13.5px;
    line-height: 1.75;
    vertical-align: top;
}
.neo-note-table th {
    width: 92px;
    font-weight: 800;
    color: var(--cbl-ink);
    white-space: nowrap;
}
.neo-note-table td { color: var(--cbl-text); }
.neo-note-table td b { color: var(--cbl-ink); }
.neo-usage { margin: 0; padding-left: 22px; display: grid; gap: 6px; }
.neo-usage li { font-size: 14px; line-height: 1.9; color: var(--cbl-muted); }
.neo-usage li b { color: var(--cbl-text); }

/* ---------- 指南 ---------- */
.cbl-guide {
    margin-top: 30px;
    background: var(--cbl-paper);
    border: 1px solid var(--cbl-line);
    border-radius: 16px;
    padding: 22px 26px;
    box-shadow: var(--cbl-shadow);
}
.cbl-guide h2 { font-size: 17px; font-weight: 900; margin: 0 0 13px; }
.cbl-guide ul { margin: 0; padding: 0; list-style: none; display: grid; gap: 10px; }
.cbl-guide li {
    font-size: 14px;
    line-height: 1.85;
    color: var(--cbl-muted);
    padding-left: 22px;
    position: relative;
}
.cbl-guide li::before {
    content: "✏️";
    position: absolute;
    left: 0;
    font-size: 12px;
}
.cbl-guide li b { color: var(--cbl-text); }

/* ---------- 响应式 ---------- */
@media (max-width: 720px) {
    .cbl-stats { grid-template-columns: repeat(2, 1fr); }
    .cbl-table { min-width: 660px; }
}

/* ---------- 打印：登记表 + 逾期清单 ---------- */
@media print {
    body * { visibility: hidden; }
    .cbl-ledger, .cbl-ledger *,
    .cbl-late-box, .cbl-late-box * { visibility: visible; }
    .cbl-ledger {
        position: absolute;
        inset: 0 auto auto 0;
        width: 100%;
        box-shadow: none;
    }
    .cbl-late-box {
        position: static;
        margin-top: 16px;
        box-shadow: none;
    }
    .cbl-col-del { display: none; }
    .cbl-table input { border: 0; }
}