:root {
  --asphalt: #1c2023;
  --asphalt-2: #262b2f;
  --amber: #e8a13d;
  --rust: #c2542b;
  --diesel: #4f8a5b;
  --steel: #6b7680;
  --paper: #f3f1ea;
  --line: #383e42;
  --mono: 'SF Mono', Consolas, monospace;
  --sans: -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
}
* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; background: var(--asphalt); color: var(--paper); font-family: var(--sans); }
.hidden { display: none !important; }
button:focus-visible, input:focus-visible, select:focus-visible { outline: 2px solid var(--amber); outline-offset: 2px; }

/* login */
.login-screen { min-height: 100vh; display: flex; align-items: center; justify-content: center; }
.login-card { background: var(--asphalt-2); border: 1px solid var(--line); border-radius: 10px; padding: 32px; width: 280px; display: flex; flex-direction: column; align-items: center; gap: 10px; }
.login-card input { width: 100%; background: var(--asphalt); border: 1px solid var(--line); color: var(--paper); border-radius: 6px; padding: 10px; margin-top: 14px; font-size: 14px; }
.login-card button { width: 100%; background: var(--amber); color: #1c2023; border: none; border-radius: 6px; padding: 10px; font-weight: 700; margin-top: 10px; cursor: pointer; }
.login-error { color: var(--rust); font-size: 12.5px; min-height: 16px; }

/* shell */
.header { padding: 20px 24px 0; border-bottom: 1px solid var(--line); background: var(--asphalt-2); }
.brand-row { display: flex; align-items: center; gap: 12px; margin-bottom: 16px; }
.brand-mark { width: 40px; height: 40px; border-radius: 6px; background: linear-gradient(135deg, var(--amber), var(--rust)); display: flex; align-items: center; justify-content: center; font-weight: 800; font-family: var(--mono); color: #1c2023; }
.brand-name { font-weight: 800; letter-spacing: 1.5px; font-size: 15px; }
.version-badge { font-family: var(--mono); font-weight: 600; font-size: 10.5px; color: var(--steel); letter-spacing: 0; background: var(--asphalt); border: 1px solid var(--line); border-radius: 4px; padding: 1px 6px; margin-left: 6px; vertical-align: middle; }
.brand-sub { font-size: 12px; color: var(--steel); margin-top: 2px; }
.logout-btn { margin-left: auto; background: transparent; border: 1px solid var(--line); color: var(--steel); border-radius: 6px; padding: 6px 12px; cursor: pointer; font-size: 12.5px; }
.nav { display: flex; gap: 4px; overflow-x: auto; }
.nav-btn { background: transparent; border: none; color: var(--steel); padding: 10px 14px; font-size: 13.5px; font-weight: 600; cursor: pointer; border-bottom: 2px solid transparent; white-space: nowrap; }
.nav-btn.active { color: var(--paper); border-bottom: 2px solid var(--amber); }
.main { padding: 24px; max-width: 980px; margin: 0 auto; }

/* components */
.kpi-row { display: grid; grid-template-columns: repeat(auto-fit, minmax(180px, 1fr)); gap: 12px; margin-bottom: 24px; }
.kpi { background: var(--asphalt-2); border: 1px solid var(--line); border-top: 3px solid var(--amber); border-radius: 8px; padding: 14px 16px; }
.kpi-label { font-size: 11.5px; color: var(--steel); text-transform: uppercase; letter-spacing: 0.6px; margin-bottom: 6px; }
.kpi-value { font-size: 22px; font-family: var(--mono); font-weight: 700; }
.section-label { font-size: 12px; text-transform: uppercase; letter-spacing: 1px; color: var(--amber); font-weight: 700; margin: 22px 0 8px; }
.card { background: var(--asphalt-2); border: 1px solid var(--line); border-radius: 8px; padding: 16px; }
.form-row { display: flex; gap: 12px; flex-wrap: wrap; align-items: end; }
.field { display: flex; flex-direction: column; gap: 4px; font-size: 13px; min-width: 140px; }
.field-label { color: var(--steel); font-size: 12px; }
.field input, .field select { background: var(--asphalt); border: 1px solid var(--line); color: var(--paper); border-radius: 6px; padding: 8px 10px; font-size: 14px; font-family: var(--sans); }
.field input[type=text], .field input[type=date], .field input[type=number] { width: 160px; }
.segmented { display: flex; border: 1px solid var(--line); border-radius: 6px; overflow: hidden; }
.seg-btn { flex: 1; background: var(--asphalt); color: var(--steel); border: none; padding: 8px 12px; font-size: 13px; font-weight: 600; cursor: pointer; }
.seg-btn.active { background: var(--amber); color: #1c2023; }
.primary-btn { background: var(--amber); color: #1c2023; border: none; border-radius: 6px; padding: 10px 18px; font-weight: 700; font-size: 13.5px; cursor: pointer; margin-top: 14px; }
.secondary-btn { background: transparent; color: var(--paper); border: 1px solid var(--line); border-radius: 6px; padding: 8px 14px; font-weight: 600; font-size: 13px; cursor: pointer; margin-top: 8px; }
.link-btn { background: none; border: none; color: var(--rust); font-size: 12.5px; cursor: pointer; text-decoration: underline; padding: 0; }
table { width: 100%; border-collapse: collapse; font-size: 13.5px; }
th { text-align: left; color: var(--steel); font-weight: 600; font-size: 11.5px; text-transform: uppercase; letter-spacing: 0.4px; padding: 8px 10px; border-bottom: 1px solid var(--line); }
td { padding: 9px 10px; vertical-align: top; border-bottom: 1px solid var(--line); }
.tag { font-size: 11px; font-weight: 700; color: #1c2023; padding: 2px 8px; border-radius: 10px; }
.empty { padding: 28px 16px; text-align: center; color: var(--steel); border: 1px dashed var(--line); border-radius: 8px; font-size: 13.5px; }
.hint { font-size: 12.5px; color: var(--steel); }
.footnote { font-size: 11.5px; color: var(--steel); margin-top: 10px; line-height: 1.5; }
.mono { font-family: var(--mono); }
.right { text-align: right; }
.leg-row { display: flex; gap: 8px; margin-top: 6px; align-items: center; }
.export-actions { display: flex; gap: 12px; flex-wrap: wrap; }