:root {
  --bg: #f6f7f9;
  --surface: #ffffff;
  --ink: #20242a;
  --muted: #606874;
  --accent: #e60000;
  --accent-dark: #b60000;
  --line: #e3e6eb;
  --ok: #0f9d58;
}

* { box-sizing: border-box; }
html, body {
  margin: 0;
  padding: 0;
  background: radial-gradient(1200px 700px at 90% -10%, #ffd7d7 0%, transparent 55%), var(--bg);
  color: var(--ink);
  font-family: "Segoe UI", "Helvetica Neue", Helvetica, Arial, sans-serif;
  scroll-behavior: smooth;
}

.topbar {
  position: sticky;
  top: 0;
  z-index: 30;
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 14px 24px;
  background: rgba(255, 255, 255, 0.95);
  border-bottom: 1px solid var(--line);
  backdrop-filter: blur(6px);
}

.brand {
  font-weight: 700;
  letter-spacing: 0.2px;
  color: var(--accent);
}

nav { display: flex; gap: 14px; flex-wrap: wrap; }
nav a {
  text-decoration: none;
  color: var(--muted);
  font-size: 0.92rem;
  padding: 4px 8px;
  border-radius: 12px;
}
nav a:hover { background: #ffe9e9; color: var(--accent-dark); }

main {
  max-width: 1100px;
  margin: 0 auto;
  padding: 24px;
}

.section {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 18px;
  padding: 28px;
  margin-bottom: 20px;
  box-shadow: 0 8px 30px rgba(32, 36, 42, 0.04);
}

.hero {
  padding: 34px 28px;
  background: linear-gradient(145deg, #ffffff 0%, #fff3f3 100%);
}

.eyebrow {
  display: inline-block;
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 1.2px;
  color: var(--accent);
  margin-bottom: 4px;
}

h1 { margin: 6px 0 8px; font-size: 2rem; line-height: 1.2; }
h2 { margin: 0 0 8px; font-size: 1.45rem; }
h3 { margin: 0 0 10px; font-size: 1.05rem; }
.lead { color: var(--muted); margin-top: 0; }

.poc-banner {
  margin-top: 12px;
  margin-bottom: 8px;
  padding: 10px 12px;
  border-radius: 10px;
  border: 1px solid #ffd1d1;
  background: #fff5f5;
  font-size: 0.92rem;
  line-height: 1.45;
}

.poc-banner strong {
  color: var(--accent-dark);
}

.kpi-grid {
  margin-top: 16px;
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 12px;
}

.kpi-card {
  border: 1px solid #ffd5d5;
  border-radius: 12px;
  padding: 12px;
  background: #fff;
}
.kpi-label { color: var(--muted); font-size: 0.82rem; margin-bottom: 4px; }
.kpi-value { font-size: 1.45rem; font-weight: 700; color: var(--accent-dark); }

.panel {
  border: 1px solid var(--line);
  border-radius: 14px;
  padding: 16px;
  margin: 14px 0;
  background: #fff;
}

.two-col {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}

table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.92rem;
}
th, td {
  border-bottom: 1px solid var(--line);
  text-align: left;
  padding: 8px;
}
th { background: #fff5f5; }

.mini-cards {
  display: grid;
  grid-template-columns: 1fr;
  gap: 10px;
}
.mini {
  border: 1px dashed #ffc2c2;
  padding: 10px;
  border-radius: 10px;
  background: #fff8f8;
}
.mini strong { color: var(--accent-dark); }

.signal-list, .importance-list { margin: 0; padding-left: 18px; }
.signal-list li, .importance-list li { margin: 7px 0; }

.flow {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 10px;
  margin: 10px 0 14px;
}
.step {
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 10px;
  background: #fff;
}
.step span {
  display: inline-grid;
  place-items: center;
  width: 24px;
  height: 24px;
  border-radius: 50%;
  background: var(--accent);
  color: #fff;
  font-size: 0.82rem;
  font-weight: 700;
}
.step p { margin: 8px 0 0; font-size: 0.9rem; }

.email-card {
  white-space: pre-line;
  font-size: 0.92rem;
  line-height: 1.5;
  border-left: 4px solid var(--accent);
  padding: 10px 12px;
  background: #fff7f7;
  border-radius: 8px;
}

.note {
  margin: 8px 0 0;
  font-size: 0.9rem;
  color: var(--muted);
}

.so-what {
  margin-top: 12px;
  padding: 10px 12px;
  border-radius: 10px;
  background: #f8fbff;
  border: 1px solid #dcecff;
  font-size: 0.93rem;
}

footer {
  max-width: 1100px;
  margin: 0 auto 22px;
  padding: 0 24px;
  color: var(--muted);
  font-size: 0.88rem;
}

@media (max-width: 980px) {
  .kpi-grid { grid-template-columns: 1fr 1fr; }
  .two-col { grid-template-columns: 1fr; }
  .flow { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 640px) {
  .topbar { position: static; }
  nav { gap: 8px; }
  .kpi-grid { grid-template-columns: 1fr; }
  .flow { grid-template-columns: 1fr; }
  .section { padding: 20px; }
}