:root {
  --bg: #f4efe6;
  --panel: rgba(255, 251, 245, 0.88);
  --ink: #1f2937;
  --muted: #5b6470;
  --accent: #b91c1c;
  --accent-soft: #fee2e2;
  --teal: #115e59;
  --teal-soft: #ccfbf1;
  --line: rgba(31, 41, 55, 0.12);
  --warning: #92400e;
  --warning-soft: #fef3c7;
  --shadow: 0 24px 70px rgba(31, 41, 55, 0.12);
}

* { box-sizing: border-box; }
body {
  margin: 0;
  min-height: 100vh;
  font-family: "Space Grotesk", "Segoe UI", sans-serif;
  color: var(--ink);
  background:
    radial-gradient(circle at top left, rgba(17, 94, 89, 0.18), transparent 30%),
    radial-gradient(circle at bottom right, rgba(185, 28, 28, 0.16), transparent 35%),
    linear-gradient(160deg, #faf5ee 0%, #efe2cf 100%);
}
.shell { width: min(1180px, calc(100vw - 32px)); margin: 0 auto; padding: 32px 0 48px; }
.hero { display: grid; gap: 24px; grid-template-columns: 1.3fr 0.9fr; align-items: stretch; }
.hero-copy, .upload-card, .panel {
  background: var(--panel);
  backdrop-filter: blur(18px);
  border: 1px solid var(--line);
  border-radius: 28px;
  box-shadow: var(--shadow);
}
.hero-copy { padding: 40px; }
.eyebrow {
  display: inline-block; padding: 6px 10px; border-radius: 999px;
  background: rgba(17, 94, 89, 0.12); color: var(--teal); font-size: 12px;
  font-weight: 700; letter-spacing: 0.08em; text-transform: uppercase;
}
.hero h1, .summary-header h2 { margin: 16px 0 12px; font-size: clamp(2rem, 3vw, 4rem); line-height: 0.95; }
.hero p, #period-text, .status { color: var(--muted); font-size: 1rem; line-height: 1.6; }
.hero-rules { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 22px; }
.hero-rules span, .pill, .status {
  padding: 10px 12px; border-radius: 999px; border: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.65); font-size: 0.9rem;
}
.upload-card { padding: 24px; display: flex; flex-direction: column; justify-content: center; }
.dropzone {
  display: grid; place-items: center; min-height: 280px; padding: 24px;
  border: 2px dashed rgba(17, 94, 89, 0.28); border-radius: 24px;
  background: linear-gradient(135deg, rgba(17, 94, 89, 0.08), rgba(255, 255, 255, 0.85)), #fff;
  text-align: center; cursor: pointer;
}
.dropzone input { display: none; }
.dropzone strong { font-size: 1.4rem; }
.dropzone span { margin-top: 8px; color: var(--muted); }
button, .export-link {
  margin-top: 16px; padding: 16px 18px; border: 0; border-radius: 18px;
  background: linear-gradient(135deg, #111827, #b91c1c); color: white; font: inherit;
  font-weight: 700; text-decoration: none; text-align: center; cursor: pointer;
}
.status.loading { color: var(--teal); background: var(--teal-soft); }
.status.error { color: var(--accent); background: var(--accent-soft); }
.status.success { color: var(--teal); background: var(--teal-soft); }
.hidden { display: none; }
.results { margin-top: 28px; display: grid; gap: 20px; }
.summary-header { display: flex; gap: 20px; justify-content: space-between; align-items: end; }
.summary-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(170px, 1fr)); gap: 16px; }
.metric { background: rgba(255, 255, 255, 0.78); border: 1px solid var(--line); border-radius: 22px; padding: 18px; }
.metric span { display: block; color: var(--muted); font-size: 0.86rem; }
.metric strong { display: block; margin-top: 8px; font-size: 1.6rem; }
.panel { padding: 24px; }
.panel-heading { display: flex; justify-content: space-between; align-items: center; margin-bottom: 16px; }
.issues-list { display: grid; gap: 12px; }
.issue-item { padding: 16px; border-radius: 18px; background: var(--warning-soft); border: 1px solid rgba(146, 64, 14, 0.18); }
.issue-item strong { display: block; margin-bottom: 8px; }
.table-wrap { overflow: auto; }
table { width: 100%; border-collapse: collapse; }
th, td { padding: 14px 12px; border-bottom: 1px solid var(--line); text-align: left; vertical-align: top; }
th { font-size: 0.84rem; color: var(--muted); text-transform: uppercase; letter-spacing: 0.04em; }
tr.ignored { background: rgba(148, 163, 184, 0.12); }
tr.issue { background: rgba(254, 243, 199, 0.7); }
.badge { display: inline-flex; padding: 6px 10px; border-radius: 999px; font-size: 0.8rem; font-weight: 700; }
.badge.ok { background: var(--teal-soft); color: var(--teal); }
.badge.warn { background: var(--warning-soft); color: var(--warning); }
.badge.off { background: rgba(148, 163, 184, 0.16); color: #475569; }
.pill.neutral { color: var(--muted); }
@media (max-width: 900px) {
  .hero { grid-template-columns: 1fr; }
  .summary-header { flex-direction: column; align-items: start; }
}