* { box-sizing: border-box; margin: 0; padding: 0; }
body { font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'PingFang SC', sans-serif; background: #0f1115; color: #e4e6eb; font-size: 16px; line-height: 1.55; }
a { color: #4fc3f7; text-decoration: none; }
a:hover { text-decoration: underline; }
nav { background: #1a1d24; padding: 10px 20px; display: flex; gap: 16px; align-items: center; border-bottom: 1px solid #2a2e38; position: sticky; top: 0; z-index: 10; }
nav a { padding: 6px 12px; border-radius: 4px; }
nav a.active { background: #2d6cdf; color: #fff; }
nav .spacer { flex: 1; }
.container { padding: 24px; max-width: 1400px; margin: 0 auto; }
h1 { font-size: 26px; line-height: 1.3; margin-bottom: 8px; }
h2 { font-size: 20px; margin-bottom: 12px; color: #b0b4bd; font-weight: 600; letter-spacing: 0.5px; text-transform: uppercase; }
.filters { background: #1a1d24; border: 1px solid #2a2e38; border-radius: 6px; padding: 14px 18px; margin-bottom: 24px; display: flex; gap: 12px; align-items: center; flex-wrap: wrap; }
.filters label { font-size: 14px; color: #8a8f9a; }
.filters select, .filters input { background: #252830; color: #e4e6eb; border: 1px solid #3a3f4b; border-radius: 4px; padding: 7px 11px; font-size: 14px; }
.filters button { background: #2d6cdf; color: #fff; border: none; border-radius: 4px; padding: 7px 14px; cursor: pointer; font-size: 14px; }
.filters button:hover { background: #3a7ae6; }
.filters .current-window { color: #8a8f9a; font-size: 14px; }
.grid { display: grid; gap: 16px; }
.grid.overview { grid-template-columns: repeat(auto-fit, minmax(290px, 1fr)); gap: 18px; }
.card { background: #1a1d24; border: 1px solid #2a2e38; border-radius: 6px; padding: 16px; }
.card .label { color: #8a8f9a; font-size: 16px; margin-bottom: 8px; letter-spacing: 0.3px; }
.card .value { font-size: 32px; line-height: 1.15; font-weight: 600; color: #fff; }
.card .value.n-a { color: #ffb74d; font-size: 20px; }
.card .value.not-matured { color: #ffb74d; font-size: 18px; }
.card .value.empty { color: #6b7280; font-size: 20px; }
.card .source { color: #8a8f9a; font-size: 14px; margin-top: 10px; border-top: 1px dashed #2a2e38; padding-top: 8px; }
.card .derivation { color: #8a8f9a; font-size: 14px; margin-top: 4px; }
.card .limitation { color: #ffb74d; font-size: 14px; margin-top: 6px; }
table { width: 100%; border-collapse: collapse; }
th, td { padding: 10px 12px; text-align: left; border-bottom: 1px solid #2a2e38; }
th { background: #20232b; color: #8a8f9a; font-size: 14px; letter-spacing: 0.3px; font-weight: 600; }
td { font-size: 14px; }
.bar { height: 24px; background: #252830; border-radius: 3px; position: relative; overflow: hidden; }
.bar-fill { height: 100%; background: linear-gradient(90deg, #2d6cdf, #4fc3f7); transition: width 0.3s; }
.bar-label { position: absolute; inset: 0; display: flex; align-items: center; justify-content: center; font-size: 13px; color: #fff; }
.status-ok { color: #4caf50; } .status-na { color: #ef5350; } .status-empty { color: #6b7280; }
.status-dot { display: inline-block; width: 8px; height: 8px; border-radius: 50%; margin-right: 6px; }
.status-dot.ok { background: #4caf50; }
.status-dot.na { background: #ef5350; }
.status-dot.empty { background: #6b7280; }
.status-dot.not-matured { background: #ffb74d; }
.note { background: #2d2616; border: 1px solid #5a4a20; border-radius: 4px; padding: 10px 14px; font-size: 14px; color: #ffb74d; margin-bottom: 16px; }
.source-bar { color: #8a8f9a; font-size: 14px; margin-bottom: 16px; padding: 10px 14px; background: #1a1d24; border-radius: 4px; border: 1px solid #2a2e38; }
.source-bar code { color: #4fc3f7; }

/* Chinese UI comfort tweaks */
nav { flex-wrap: wrap; }
.card .label { text-transform: none; }  /* no uppercase for Chinese labels */
table { table-layout: auto; min-width: 600px; }
th, td { white-space: nowrap; }
.container { padding: 20px; max-width: 1500px; }

.freshness-badge { color: #8a8f9a; font-size: 14px; padding: 8px 14px; background: #1a1d24; border-radius: 4px; border: 1px solid #2a2e38; }
.freshness-badge .val { color: #4fc3f7; }
.export-btn { background: #2d6cdf; color: #fff; border: none; border-radius: 4px; padding: 8px 18px; cursor: pointer; font-size: 15px; }
.export-btn:hover { background: #3a7ae6; }

/* One-click refresh status */
.refresh-status { margin-left: 12px; font-size: 13px; color: #6b7280; }
.refresh-status.success { color: #16a34a; }
.refresh-status.fail { color: #dc2626; }
.refresh-status.running { color: #2d6cdf; }
button:disabled { opacity: 0.5; cursor: not-allowed; }

/* Source badge — prevents operator mistaking sample for real data */
.source-badge { font-size: 14px; padding: 8px 14px; border-radius: 4px; font-weight: 600; }
.source-badge.source-real { background: #1a3a1a; color: #8bdb8b; border: 1px solid #2a5a2a; }
.source-badge.source-sample { background: #3a2a10; color: #ffb74d; border: 1px solid #5a4020; }
.source-badge.source-unknown { background: #3a1a1a; color: #ff8a65; border: 1px solid #5a2a2a; }
.source-sample-warn { font-size: 14px; color: #ffb74d; font-weight: 600; padding: 8px 12px; background: rgba(255,183,77,0.1); border: 1px solid rgba(255,183,77,0.4); border-radius: 4px; }

/* ── V02-003 admin login ─────────────────────────────────────────────────── */
.login-wrap { min-height: 100vh; display: flex; align-items: center; justify-content: center; padding: 24px; }
.login-card { width: 100%; max-width: 400px; background: #1a1d24; border: 1px solid #2a2e38; border-radius: 8px; padding: 28px 26px 22px; display: flex; flex-direction: column; gap: 10px; }
.login-title { font-size: 22px; font-weight: 600; color: #fff; letter-spacing: 0.5px; }
.login-sub { font-size: 14px; color: #8a8f9a; margin-bottom: 8px; }
.login-label { font-size: 14px; color: #8a8f9a; }
.login-input { background: #252830; color: #e4e6eb; border: 1px solid #3a3f4b; border-radius: 4px; padding: 10px 12px; font-size: 15px; width: 100%; }
.login-input:focus { outline: none; border-color: #2d6cdf; }
.login-btn { margin-top: 6px; background: #2d6cdf; color: #fff; border: none; border-radius: 4px; padding: 11px 18px; cursor: pointer; font-size: 15px; font-weight: 600; }
.login-btn:hover { background: #3a7ae6; }
.login-btn:disabled { opacity: 0.55; cursor: not-allowed; }
.login-error { font-size: 14px; color: #ff8a65; background: rgba(255,138,101,0.1); border: 1px solid rgba(255,138,101,0.4); border-radius: 4px; padding: 8px 12px; }
.login-foot { font-size: 13px; color: #6b7280; margin-top: 6px; line-height: 1.5; }
.nav-btn.logout { background: transparent; color: #8a8f9a; border: 1px solid #3a3f4b; }
.nav-btn.logout:hover { color: #e4e6eb; border-color: #4fc3f7; }
.stale-warn { font-size: 14px; color: #ffb74d; font-weight: 600; padding: 8px 12px; background: rgba(255,183,77,0.1); border: 1px solid rgba(255,183,77,0.4); border-radius: 4px; }