:root {
  --bg: #F6F7F8;
  --text: #1C1F22;
  --muted: #666;
  --accent: #2F5D62;
  --border: #DDDDDD;
  --card: #FFFFFF;
}

body {
  margin: 0;
  padding: 0;
  background: var(--bg);
  color: var(--text);
  font-family: "IBM Plex Sans", Arial, sans-serif;
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

a {
  color: var(--accent);
  text-decoration: none;
  transition: opacity 0.2s ease;
}

a:hover {
  opacity: 0.7;
}

/* LAYOUT */
.container {
  max-width: 920px;
  margin: 0 auto;
  padding: 72px 28px;
}

/* TYPOGRAPHY */
h1 {
  font-size: 28px;
  font-weight: 500;
  margin-bottom: 12px;
  letter-spacing: -0.02em;
}

h2 {
  font-size: 15px;
  font-weight: 500;
  color: var(--accent);
  margin-bottom: 28px;
}

p {
  font-size: 15px;
  margin-bottom: 18px;
}

/* META SYSTEM */
.meta {
  font-family: "IBM Plex Mono", monospace;
  font-size: 11px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--muted);
  margin-bottom: 28px;
}

/* NAVIGATION */
.nav {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-top: 36px;
  font-size: 14px;
}

.nav a {
  padding: 6px 10px;
  border: 1px solid var(--border);
  border-radius: 4px;
  background: rgba(255,255,255,0.6);
}

.nav a:hover {
  border-color: var(--accent);
}

/* CARDS (CASE FILES / STAFF) */
.card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 18px 20px;
  margin-bottom: 14px;
  transition: transform 0.15s ease, border-color 0.15s ease;
}

.card:hover {
  transform: translateY(-1px);
  border-color: var(--accent);
}

/* CASE FILE STYLING */
.case-id {
  font-family: "IBM Plex Mono", monospace;
  font-size: 11px;
  color: var(--muted);
  margin-bottom: 6px;
  letter-spacing: 0.05em;
}

.case-title {
  font-size: 16px;
  font-weight: 500;
  margin-bottom: 8px;
}

.case-body {
  font-size: 14px;
  color: var(--text);
}

/* HEADER BLOCKS */
.header-block {
  margin-bottom: 40px;
  padding-bottom: 20px;
  border-bottom: 1px solid var(--border);
}

/* SECTION SPACING */
.section {
  margin-bottom: 36px;
}

/* FOOTER / SYSTEM STATUS */
.footer {
  margin-top: 60px;
  padding-top: 20px;
  border-top: 1px solid var(--border);
  font-size: 11px;
  color: var(--muted);
  font-family: "IBM Plex Mono", monospace;
  letter-spacing: 0.08em;
}

/* SMALL UI DETAILS */
.badge {
  display: inline-block;
  font-size: 10px;
  padding: 2px 6px;
  border: 1px solid var(--border);
  border-radius: 3px;
  margin-left: 6px;
  color: var(--muted);
}

hr {
  border: none;
  border-top: 1px solid var(--border);
  margin: 40px 0;
}

.breadcrumb {
  position: fixed;
  top: 52px;
  left: 18px;
  font-family: "IBM Plex Mono", monospace;
  font-size: 11px;
  color: var(--muted);
  display: flex;
  gap: 6px;
  z-index: 999;
}

.breadcrumb a {
  color: var(--muted);
  text-decoration: none;
}

.breadcrumb a:hover {
  color: var(--accent);
}

.breadcrumb span {
  color: var(--muted);
}

.breadcrumb .current {
  color: var(--text);
}

.ise-logo {
  font-family: "IBM Plex Mono", monospace;
  font-size: 14px;
  letter-spacing: 0.25em;
  color: #1C1F22;

  margin: 18px;
  position: fixed;
  top: 0;
  left: 0;
}