:root {
  --ink: #12202c;
  --ink-soft: #3d4b55;
  --paper: #f4f1ea;
  --paper-2: #fffdf8;
  --line: #d9d3c7;
  --accent: #c45c26;
  --teal: #1f6f78;
  --danger: #9b2c2c;
  --ok: #1f6f78;
}

* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
body {
  font-family: "IBM Plex Sans", sans-serif;
  color: var(--ink);
  background: var(--paper);
  line-height: 1.45;
}

h1, h2, h3 { margin: 0 0 0.4rem; font-weight: 600; letter-spacing: -0.02em; }
h1 { font-size: 1.7rem; }
h2 { font-size: 1.35rem; }
h3 { font-size: 1rem; }
p { margin: 0; }
code { font-family: "IBM Plex Mono", monospace; font-size: 0.9em; }

.brand {
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  font-size: 0.72rem;
  color: var(--accent);
  margin: 0;
}

.muted { color: var(--ink-soft); font-size: 0.92rem; }
.eyebrow { color: var(--teal); font-size: 0.8rem; font-weight: 600; text-transform: uppercase; letter-spacing: 0.06em; }
.hint { color: var(--ink-soft); font-size: 0.8rem; margin-top: 0.6rem; }

.login-shell {
  min-height: 100vh;
  display: grid;
  place-items: center;
  padding: 2rem;
  background: var(--paper);
}
.login-panel {
  width: min(440px, 100%);
  background: var(--paper-2);
  border: 1px solid var(--line);
  border-left: 6px solid var(--accent);
  padding: 2.2rem;
}
.login-panel h1 { margin-top: 0.8rem; }
.lede { color: var(--ink-soft); margin: 0.6rem 0 1.4rem; }

.stack { display: grid; gap: 0.9rem; }
label { display: grid; gap: 0.35rem; font-size: 0.85rem; font-weight: 500; }
input[type="text"],
input[type="password"],
input[type="search"],
input[type="file"] {
  font: inherit;
  padding: 0.65rem 0.7rem;
  border: 1px solid var(--line);
  background: #fff;
  color: var(--ink);
}
input:focus { outline: 2px solid var(--teal); outline-offset: 1px; }

button, .button {
  font: inherit;
  font-weight: 600;
  border: 0;
  background: var(--ink);
  color: #fff;
  padding: 0.7rem 1rem;
  cursor: pointer;
  text-decoration: none;
  display: inline-block;
  text-align: center;
}
.button-secondary { background: var(--teal); }
.ghost {
  background: transparent;
  color: var(--ink);
  border: 1px solid var(--line);
}

.banner { padding: 0.7rem 0.8rem; margin: 0 0 1rem; border: 1px solid var(--line); }
.banner-error, .banner-danger { border-color: var(--danger); color: var(--danger); background: #f8ecec; }
.banner-ok { border-color: var(--teal); color: var(--teal); background: #e7f1f2; }

.topbar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 1rem 1.5rem;
  border-bottom: 1px solid var(--line);
  background: var(--paper-2);
}
.page { width: min(1180px, calc(100% - 2rem)); margin: 1.4rem auto 3rem; display: grid; gap: 1.1rem; }

.upload-card, .panel, .empty, .report-head {
  background: var(--paper-2);
  border: 1px solid var(--line);
  padding: 1.1rem 1.2rem;
}
.upload-card { display: grid; gap: 0.9rem; }
.upload-form { display: flex; gap: 0.7rem; flex-wrap: wrap; align-items: center; }
.report-head { display: flex; justify-content: space-between; gap: 1rem; align-items: flex-start; flex-wrap: wrap; }
.exports { display: flex; gap: 0.5rem; }

.kpis {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 0.7rem;
}
.kpis article {
  background: var(--paper-2);
  border: 1px solid var(--line);
  padding: 0.9rem 1rem;
}
.kpis p { font-size: 0.78rem; color: var(--ink-soft); text-transform: uppercase; letter-spacing: 0.04em; }
.kpis strong { display: block; font-size: 1.6rem; margin-top: 0.25rem; letter-spacing: -0.03em; }
.kpis .dur { font-family: "IBM Plex Mono", monospace; font-size: 1.15rem; }
.kpis span { color: var(--ink-soft); font-size: 0.8rem; }

.grid-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 0.7rem; }
table { width: 100%; border-collapse: collapse; font-size: 0.9rem; }
th, td { text-align: left; padding: 0.45rem 0.4rem; border-bottom: 1px solid var(--line); vertical-align: top; }
th { font-size: 0.75rem; text-transform: uppercase; letter-spacing: 0.04em; color: var(--ink-soft); font-weight: 600; }
.table-head { display: flex; justify-content: space-between; gap: 1rem; align-items: center; margin-bottom: 0.7rem; }
.table-head input { min-width: 240px; }
.table-scroll { overflow: auto; max-height: 520px; }
.subhead { margin-top: 1.1rem; }
.status-overall { max-width: 420px; margin: 0 auto 0.4rem; }
.pie-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
  gap: 0.9rem;
  margin-top: 0.6rem;
}
.pie-grid article {
  border: 1px solid var(--line);
  padding: 0.8rem;
}

.empty { padding: 2rem 1.2rem; }

@media (max-width: 900px) {
  .kpis, .grid-2 { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 640px) {
  .kpis, .grid-2 { grid-template-columns: 1fr; }
  .upload-form, .exports, .table-head { flex-direction: column; align-items: stretch; }
}