/* Peptide Recon - Tactical Intelligence Theme */
:root {
  --olive: #4B5320;
  --black: #1C1C1C;
  --dark-red: #8B0000;
  --dark-gray: #2F2F2F;
  --light-gray: #666;
  --grid-color: rgba(75, 83, 32, 0.2);
  --accent: #9ACD32; /* yellowish-green for highlights */
}

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

body {
  font-family: 'Barlow', 'Arial', sans-serif;
  background: var(--black);
  color: #ccc;
  line-height: 1.7;
  font-size: 16px;
}

/* Tactical Grid Background */
body::before {
  content: '';
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-image:
    linear-gradient(var(--grid-color) 1px, transparent 1px),
    linear-gradient(90deg, var(--grid-color) 1px, transparent 1px);
  background-size: 50px 50px;
  pointer-events: none;
  z-index: 0;
}

/* Command Center Sidebar Navigation */
.command-sidebar {
  position: fixed;
  left: 0;
  top: 0;
  width: 320px;
  height: 100vh;
  background: linear-gradient(135deg, var(--dark-gray) 0%, var(--black) 100%);
  border-right: 2px solid var(--olive);
  overflow-y: auto;
  z-index: 1000;
  padding: 1.5rem 0;
}

.command-sidebar::-webkit-scrollbar {
  width: 8px;
}

.command-sidebar::-webkit-scrollbar-track {
  background: var(--black);
}

.command-sidebar::-webkit-scrollbar-thumb {
  background: var(--olive);
  border-radius: 4px;
}

.sidebar-header {
  padding: 0 1.5rem 1.5rem;
  border-bottom: 1px solid var(--olive);
}

.logo {
  font-family: 'Russo One', sans-serif;
  font-size: 1.4rem;
  color: var(--accent);
  text-decoration: none;
  display: block;
  letter-spacing: 2px;
  text-transform: uppercase;
}

.classification-badge {
  display: inline-block;
  background: var(--dark-red);
  color: #fff;
  padding: 0.25rem 0.75rem;
  font-size: 0.75rem;
  font-weight: bold;
  letter-spacing: 1px;
  margin-top: 0.5rem;
  border: 1px solid #fff;
}

/* Navigation Categories */
.nav-category {
  margin: 1rem 0;
}

.category-header {
  padding: 0.75rem 1.5rem;
  background: var(--olive);
  color: #fff;
  font-family: 'Russo One', sans-serif;
  font-size: 0.85rem;
  letter-spacing: 1px;
  text-transform: uppercase;
  cursor: pointer;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.category-header:hover {
  background: #5a6328;
}

.category-toggle {
  font-size: 1.2rem;
}

.category-links {
  background: rgba(0, 0, 0, 0.3);
}

.category-links a {
  display: block;
  padding: 0.5rem 1.5rem 0.5rem 2rem;
  color: #999;
  text-decoration: none;
  font-size: 0.9rem;
  border-left: 3px solid transparent;
  transition: all 0.2s;
}

.category-links a:hover {
  background: rgba(75, 83, 32, 0.2);
  border-left-color: var(--accent);
  color: var(--accent);
}

.category-links a.active {
  background: rgba(75, 83, 32, 0.3);
  border-left-color: var(--dark-red);
  color: #fff;
  font-weight: 600;
}

/* Main Content Area */
.main-content {
  margin-left: 320px;
  padding: 2rem;
  min-height: 100vh;
  position: relative;
  z-index: 1;
}

/* Document Header (Classification & Report ID) */
.document-header {
  background: var(--dark-gray);
  border: 2px solid var(--olive);
  padding: 1.5rem;
  margin-bottom: 2rem;
  position: relative;
}

.document-header::before {
  content: 'CLASSIFIED';
  position: absolute;
  top: -12px;
  right: 20px;
  background: var(--dark-red);
  color: #fff;
  padding: 0.25rem 1rem;
  font-size: 0.75rem;
  font-weight: bold;
  letter-spacing: 2px;
  border: 2px solid #fff;
  transform: rotate(-2deg);
}

.report-id {
  font-family: 'Courier New', monospace;
  color: var(--accent);
  font-size: 0.85rem;
  margin-bottom: 0.5rem;
}

.document-title {
  font-family: 'Russo One', sans-serif;
  font-size: 2.5rem;
  color: #fff;
  text-transform: uppercase;
  letter-spacing: 2px;
  margin-bottom: 0.5rem;
}

.document-meta {
  display: flex;
  gap: 2rem;
  font-size: 0.85rem;
  color: #888;
  margin-top: 1rem;
}

.meta-item {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.meta-label {
  color: var(--olive);
  font-weight: 600;
  text-transform: uppercase;
  font-size: 0.75rem;
  letter-spacing: 1px;
}

/* Content Sections */
article {
  background: var(--dark-gray);
  border: 1px solid var(--olive);
  padding: 2.5rem;
  max-width: 1200px;
}

h2 {
  font-family: 'Russo One', sans-serif;
  color: var(--accent);
  font-size: 1.8rem;
  text-transform: uppercase;
  letter-spacing: 1px;
  margin: 2.5rem 0 1rem;
  padding-bottom: 0.5rem;
  border-bottom: 2px solid var(--olive);
}

h3 {
  font-family: 'Russo One', sans-serif;
  color: #fff;
  font-size: 1.3rem;
  text-transform: uppercase;
  letter-spacing: 1px;
  margin: 2rem 0 1rem;
}

p {
  margin: 1rem 0;
  color: #ccc;
}

/* Tactical Tables */
table {
  width: 100%;
  border-collapse: collapse;
  margin: 1.5rem 0;
  background: var(--black);
  border: 2px solid var(--olive);
}

thead {
  background: var(--olive);
  color: #fff;
  font-family: 'Russo One', sans-serif;
  text-transform: uppercase;
  font-size: 0.85rem;
  letter-spacing: 1px;
}

th {
  padding: 1rem;
  text-align: left;
  border: 1px solid var(--dark-gray);
}

td {
  padding: 0.75rem 1rem;
  border: 1px solid var(--dark-gray);
  color: #aaa;
}

tr:nth-child(even) {
  background: rgba(75, 83, 32, 0.05);
}

tr:hover {
  background: rgba(75, 83, 32, 0.15);
}

/* Threat Level Indicators */
.threat-indicator {
  display: inline-block;
  padding: 0.25rem 0.75rem;
  font-size: 0.75rem;
  font-weight: bold;
  text-transform: uppercase;
  letter-spacing: 1px;
  border-radius: 3px;
}

.threat-low {
  background: #2d5016;
  color: #90ee90;
  border: 1px solid #90ee90;
}

.threat-medium {
  background: #5a4a1a;
  color: #ffd700;
  border: 1px solid #ffd700;
}

.threat-high {
  background: #5a1a1a;
  color: #ff6b6b;
  border: 1px solid #ff6b6b;
}

.threat-critical {
  background: var(--dark-red);
  color: #fff;
  border: 2px solid #fff;
  font-weight: 900;
}

/* Redacted Text Effect */
.redacted {
  background: #000;
  color: transparent;
  padding: 0 0.5rem;
  border-radius: 2px;
  cursor: help;
}

.redacted:hover {
  background: rgba(0, 0, 0, 0.8);
  color: #666;
}

/* Intelligence Source Citations */
.intel-source {
  background: rgba(139, 0, 0, 0.1);
  border-left: 3px solid var(--dark-red);
  padding: 1rem;
  margin: 1.5rem 0;
  font-size: 0.9rem;
}

.intel-source-label {
  color: var(--dark-red);
  font-weight: bold;
  text-transform: uppercase;
  font-size: 0.75rem;
  letter-spacing: 1px;
  margin-bottom: 0.5rem;
}

/* Links */
a {
  color: var(--accent);
  text-decoration: none;
  border-bottom: 1px dotted var(--accent);
}

a:hover {
  color: #fff;
  border-bottom-color: #fff;
}

/* Lists */
ul, ol {
  margin: 1rem 0 1rem 2rem;
  color: #aaa;
}

li {
  margin: 0.5rem 0;
}

/* Footer */
footer {
  margin-left: 320px;
  background: var(--black);
  border-top: 2px solid var(--olive);
  padding: 2rem;
  text-align: center;
  color: #666;
  font-size: 0.85rem;
}

footer a {
  color: var(--olive);
  border-bottom-color: var(--olive);
}

footer a:hover {
  color: var(--accent);
  border-bottom-color: var(--accent);
}

/* Responsive */
@media (max-width: 768px) {
  .command-sidebar {
    width: 100%;
    height: auto;
    position: relative;
  }

  .main-content,
  footer {
    margin-left: 0;
  }

  .document-title {
    font-size: 1.8rem;
  }
}