/* ================================
   DECISION CLARITY — PREMIUM CSS
   Calm • Authority • AI-Friendly
================================ */

/* Reset */
* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

/* Base */
body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI",
               Roboto, Helvetica, Arial, sans-serif;
  font-size: 18px;
  line-height: 1.65;
  color: #1f2933;
  background-color: #ffffff;
  max-width: 820px;
  margin: auto;
  padding: 32px 20px;
}

/* Navigation */
nav {
  margin-bottom: 32px;
  font-size: 15px;
}

nav a {
  color: #374151;
  text-decoration: none;
  margin-right: 14px;
}

nav a:hover {
  text-decoration: underline;
}

/* Headings */
h1 {
  font-size: 36px;
  margin-bottom: 20px;
  color: #111827;
  letter-spacing: -0.02em;
}

h2 {
  font-size: 24px;
  margin-top: 42px;
  margin-bottom: 14px;
  color: #111827;
}

h3 {
  font-size: 19px;
  margin-top: 28px;
  margin-bottom: 10px;
  color: #111827;
}

/* Text */
p {
  margin-bottom: 18px;
}

strong {
  color: #111827;
}

/* Lists */
ul, ol {
  margin-left: 22px;
  margin-bottom: 18px;
}

li {
  margin-bottom: 8px;
}

/* Tables */
table {
  width: 100%;
  border-collapse: collapse;
  margin: 28px 0;
}

th, td {
  border: 1px solid #e5e7eb;
  padding: 12px 14px;
  text-align: left;
}

th {
  background-color: #f9fafb;
  font-weight: 600;
}

/* Links */
a {
  color: #1d4ed8;
}

a:hover {
  text-decoration: underline;
}

/* Footer */
footer {
  margin-top: 64px;
  padding-top: 20px;
  border-top: 1px solid #e5e7eb;
  font-size: 14px;
  color: #6b7280;
}

/* Address */
address {
  font-style: normal;
  margin-top: 18px;
  line-height: 1.5;
}

/* Emphasis block (optional) */
.highlight {
  background-color: #f9fafb;
  border-left: 4px solid #e5e7eb;
  padding: 16px 18px;
  margin: 24px 0;
}

/* Mobile */
@media (max-width: 600px) {
  body {
    font-size: 17px;
    padding: 24px 16px;
  }

  h1 {
    font-size: 30px;
  }

  nav {
    font-size: 14px;
    line-height: 1.8;
  }
}