:root {
    --bg: #f6f7f4;
    --panel: #ffffff;
    --ink: #20231f;
    --muted: #687064;
    --line: #dfe4da;
    --green: #2f7d4f;
    --orange: #b86125;
    --shadow: 0 10px 28px rgba(31, 38, 29, 0.08);
}

* {
    box-sizing: border-box;
}

body {
    margin: 0;
    background: var(--bg);
    color: var(--ink);
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "Noto Sans TC", Arial, sans-serif;
}

.app-shell {
    width: min(1180px, 100%);
    margin: 0 auto;
    padding: 24px 14px 80px;
}

.topbar {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    gap: 14px;
    margin-bottom: 18px;
}

.eyebrow {
    margin: 0 0 5px;
    color: var(--muted);
    font-size: 13px;
}

h1,
h2 {
    margin-top: 0;
}

h1 {
    margin-bottom: 0;
    font-size: 30px;
}

h2 {
    margin-bottom: 12px;
    font-size: 20px;
}

.updated-at {
    margin: 8px 0 0;
    color: var(--muted);
    font-size: 14px;
    font-weight: 700;
}

.panel-head {
    display: flex;
    align-items: baseline;
    justify-content: space-between;
    gap: 12px;
    margin-bottom: 12px;
}

.panel-head h2 {
    margin-bottom: 0;
}

.panel-head span {
    color: var(--muted);
    font-size: 13px;
    font-weight: 700;
}

.quick-links {
    display: flex;
    flex-wrap: wrap;
    justify-content: flex-end;
    gap: 8px;
}

.quick-links a,
.check-list a,
.file-list a {
    color: var(--green);
    text-decoration: none;
    overflow-wrap: anywhere;
}

.quick-links a {
    padding: 8px 10px;
    border: 1px solid var(--line);
    border-radius: 8px;
    background: var(--panel);
    font-size: 14px;
    font-weight: 800;
}

.doc-panel,
.module-card {
    border: 1px solid var(--line);
    border-radius: 8px;
    background: var(--panel);
    box-shadow: var(--shadow);
}

.doc-panel {
    margin-bottom: 18px;
    padding: 16px;
}

.map-grid {
    display: grid;
    gap: 12px;
    margin-bottom: 18px;
}

.module-card {
    padding: 16px;
    border-top: 4px solid var(--orange);
}

.module-card.done {
    border-top-color: var(--green);
}

.check-list,
.file-list {
    display: grid;
    gap: 9px;
    margin: 0;
    padding: 0;
    list-style: none;
}

.check-list li,
.file-list li {
    display: grid;
    grid-template-columns: 20px minmax(0, 1fr);
    align-items: start;
    gap: 8px;
    min-width: 0;
    color: var(--muted);
    font-size: 14px;
    line-height: 1.45;
}

.check-list li.group-item {
    margin-top: 8px;
    padding-top: 10px;
    border-top: 1px solid var(--line);
    color: var(--ink);
    font-size: 15px;
    font-weight: 900;
}

.check-list li.group-item:first-child {
    margin-top: 0;
    padding-top: 0;
    border-top: 0;
}

input[type="checkbox"] {
    width: 17px;
    height: 17px;
    margin-top: 2px;
    accent-color: var(--green);
}

.file-list {
    grid-template-columns: 1fr;
}

@media (min-width: 760px) {
    .app-shell {
        padding: 30px 24px 90px;
    }

    .map-grid {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }

    .file-list {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }
}

@media (min-width: 1080px) {
    .map-grid {
        grid-template-columns: repeat(3, minmax(0, 1fr));
    }
}