:root {
  --bg-color: #0A0A0C;
  --surface-container: #121316;
  --surface-container-high: #1A1B1F;
  --border-color: #26282E;
  --border-strong: #383A42;
  --primary-lavender: #A78BFA;
  --primary-hover: #C4B5FD;
  --on-primary: #000000;
  --text-heading: #FFFFFF;
  --text-body: #E2E8F0;
  --text-secondary: #94A3B8;
  --text-muted: #64748B;
  --danger-red: #FF3B30;
  --success-green: #00E676;
}

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

body {
  background-color: var(--bg-color);
  color: var(--text-body);
  font-family: 'Plus Jakarta Sans', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

.container {
  max-width: 860px;
  margin: 0 auto;
  padding: 40px 24px 80px;
}

/* Header & Nav */
header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 20px 0 40px;
  border-bottom: 1px solid var(--border-color);
  margin-bottom: 40px;
}

.logo-group {
  display: flex;
  align-items: center;
  gap: 12px;
  text-decoration: none;
}

.logo-badge {
  width: 38px;
  height: 38px;
  background-color: var(--surface-container);
  border: 1.5px solid var(--border-strong);
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: 'Syne', sans-serif;
  font-weight: 900;
  font-size: 18px;
  color: #fff;
  box-shadow: 2px 2px 0px #000;
}

.logo-text {
  font-family: 'Syne', sans-serif;
  font-weight: 900;
  font-size: 22px;
  letter-spacing: -0.5px;
  color: var(--text-heading);
}

.tag-badge {
  font-family: 'JetBrains Mono', monospace;
  font-size: 10px;
  font-weight: 900;
  letter-spacing: 0.5px;
  background-color: var(--primary-lavender);
  color: #000;
  padding: 3px 8px;
  border-radius: 2px;
  border: 1px solid #000;
  text-transform: uppercase;
}

nav a {
  color: var(--text-secondary);
  text-decoration: none;
  font-size: 13px;
  font-weight: 700;
  margin-left: 20px;
  transition: color 0.2s ease;
}

nav a:hover, nav a.active {
  color: var(--primary-lavender);
}

/* Typography */
h1 {
  font-family: 'Syne', sans-serif;
  font-weight: 900;
  font-size: 36px;
  letter-spacing: -1px;
  color: var(--text-heading);
  margin-bottom: 16px;
  line-height: 1.15;
}

h2 {
  font-family: 'Syne', sans-serif;
  font-weight: 800;
  font-size: 22px;
  color: var(--text-heading);
  margin-top: 36px;
  margin-bottom: 14px;
}

h3 {
  font-family: 'Syne', sans-serif;
  font-weight: 700;
  font-size: 17px;
  color: var(--text-heading);
  margin-top: 24px;
  margin-bottom: 8px;
}

p {
  margin-bottom: 16px;
  color: var(--text-body);
  font-size: 15px;
}

ul, ol {
  margin-left: 24px;
  margin-bottom: 20px;
}

li {
  margin-bottom: 8px;
  color: var(--text-body);
  font-size: 14.5px;
}

strong {
  color: var(--text-heading);
  font-weight: 700;
}

/* Cards & Containers */
.card {
  background-color: var(--surface-container);
  border: 1.5px solid var(--border-color);
  border-radius: 12px;
  padding: 24px;
  margin-bottom: 24px;
  box-shadow: 3px 3px 0px rgba(0, 0, 0, 0.8);
}

.card-highlight {
  border-left: 4px solid var(--primary-lavender);
}

.card-danger {
  border-left: 4px solid var(--danger-red);
  background-color: rgba(255, 59, 48, 0.05);
}

/* Code & Monospace */
code, .mono {
  font-family: 'JetBrains Mono', monospace;
  font-size: 13px;
  background-color: var(--surface-container-high);
  padding: 2px 6px;
  border-radius: 4px;
  border: 1px solid var(--border-color);
  color: var(--primary-lavender);
}

/* Forms & Buttons */
.form-group {
  margin-bottom: 20px;
}

label {
  display: block;
  font-size: 13px;
  font-weight: 700;
  color: var(--text-heading);
  margin-bottom: 6px;
  font-family: 'Plus Jakarta Sans', sans-serif;
}

input[type="email"], input[type="text"], textarea {
  width: 100%;
  padding: 14px 16px;
  background-color: var(--surface-container-high);
  border: 1.5px solid var(--border-strong);
  border-radius: 8px;
  color: #fff;
  font-size: 15px;
  font-family: inherit;
  outline: none;
  transition: border-color 0.2s ease;
}

input[type="email"]:focus, input[type="text"]:focus, textarea:focus {
  border-color: var(--primary-lavender);
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 14px 24px;
  border-radius: 8px;
  font-family: 'JetBrains Mono', monospace;
  font-size: 13px;
  font-weight: 900;
  letter-spacing: 0.5px;
  text-decoration: none;
  cursor: pointer;
  border: 1.5px solid #000;
  box-shadow: 3px 3px 0px #000;
  transition: transform 0.1s ease, box-shadow 0.1s ease;
}

.btn:active {
  transform: translate(2px, 2px);
  box-shadow: 1px 1px 0px #000;
}

.btn-primary {
  background-color: var(--primary-lavender);
  color: #000;
}

.btn-primary:hover {
  background-color: var(--primary-hover);
}

.btn-danger {
  background-color: var(--danger-red);
  color: #fff;
}

.btn-danger:hover {
  background-color: #E02E24;
}

/* Footer */
footer {
  margin-top: 60px;
  padding-top: 30px;
  border-top: 1px solid var(--border-color);
  display: flex;
  flex-direction: column;
  gap: 16px;
  font-size: 13px;
  color: var(--text-muted);
}

.footer-links {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
}

.footer-links a {
  color: var(--text-secondary);
  text-decoration: none;
  transition: color 0.2s ease;
}

.footer-links a:hover {
  color: var(--primary-lavender);
}

@media (max-width: 600px) {
  h1 { font-size: 28px; }
  header { flex-direction: column; align-items: flex-start; gap: 16px; }
  nav { width: 100%; display: flex; justify-content: space-between; }
  nav a { margin-left: 0; }
}