:root {
  --bg: #f4f6f8;
  --card: #ffffff;
  --text: #13202b;
  --muted: #455a6d;
  --border: #d9e1e8;
  --accent: #005a8d;
  --ok: #0f766e;
  --warn: #9a3412;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: "Source Sans 3", "Segoe UI", Tahoma, sans-serif;
  color: var(--text);
  background: radial-gradient(circle at 10% 10%, #edf6ff 0%, var(--bg) 45%, #eef8f0 100%);
  line-height: 1.6;
}

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

header {
  background: linear-gradient(120deg, #003a5d 0%, #005a8d 60%, #0f766e 100%);
  color: #fff;
  border-bottom: 4px solid #012940;
}

header .container {
  padding-top: 28px;
  padding-bottom: 28px;
}

h1 {
  margin: 0 0 8px 0;
  font-size: 2rem;
}

.subtitle {
  margin: 0;
  font-size: 1rem;
  opacity: 0.95;
}

.card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 20px;
  margin: 18px 0;
  box-shadow: 0 3px 14px rgba(0, 0, 0, 0.04);
}

h2 {
  margin-top: 0;
  color: #0b2a42;
}

h3 {
  margin-bottom: 8px;
  color: #10354f;
}

table {
  width: 100%;
  border-collapse: collapse;
  margin-top: 12px;
  background: #fff;
  display: block;
  overflow-x: auto;
}

th,
td {
  border: 1px solid var(--border);
  text-align: left;
  padding: 10px;
  vertical-align: top;
  min-width: 160px;
  word-break: break-word;
}

th {
  background: #edf3f8;
}

code {
  background: #eef3f7;
  padding: 2px 6px;
  border-radius: 6px;
}

.notice {
  border-left: 4px solid var(--warn);
  background: #fff7ed;
  padding: 10px 12px;
  color: #6a2f08;
}

.ok {
  border-left-color: var(--ok);
  background: #f0fdfa;
  color: #084c45;
}

ul,
ol {
  margin-top: 8px;
}

footer {
  color: var(--muted);
  font-size: 0.95rem;
  margin: 24px 0 16px;
}

@media (max-width: 760px) {
  .container {
    padding: 14px;
  }

  h1 {
    font-size: 1.5rem;
  }

  .card {
    padding: 14px;
  }

  th,
  td {
    padding: 8px;
  }
}