:root {
  --bg: #0f1115;
  --surface: #1a1d24;
  --border: #2a2f3a;
  --text: #e6e8eb;
  --muted: #9aa3b2;
  --accent: #4cb4ff;
  --accent-soft: rgba(76, 180, 255, 0.1);
  --ok: #4ade80;
  --code-bg: #0a0c10;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
}

header {
  background: linear-gradient(135deg, #1a1d24, #0f1115);
  padding: 3rem 2rem;
  border-bottom: 1px solid var(--border);
  text-align: center;
}

header h1 {
  margin: 0;
  font-size: 2.2rem;
  background: linear-gradient(90deg, var(--accent), #7cc7ff);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

header .sub {
  color: var(--muted);
  margin: 0.5rem 0 0;
  font-size: 1.1rem;
}

main {
  max-width: 960px;
  margin: 0 auto;
  padding: 2rem;
}

section {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 1.5rem 2rem;
  margin-bottom: 1.5rem;
}

h2 {
  margin-top: 0;
  color: var(--accent);
  border-bottom: 1px solid var(--border);
  padding-bottom: 0.5rem;
}

h3 {
  color: var(--text);
  margin-top: 1.5rem;
  font-size: 1.05rem;
}

code {
  background: var(--code-bg);
  padding: 2px 6px;
  border-radius: 4px;
  font-family: "SFMono-Regular", Consolas, "Liberation Mono", monospace;
  font-size: 0.9em;
  color: #f0b95c;
}

pre {
  background: var(--code-bg);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 1rem;
  overflow-x: auto;
  font-size: 0.9rem;
}

pre code {
  background: transparent;
  padding: 0;
  color: var(--text);
}

.diagram {
  font-family: "SFMono-Regular", Consolas, monospace;
  font-size: 0.85rem;
  line-height: 1.5;
  color: var(--accent);
  white-space: pre;
}

.steps {
  padding-left: 1.5rem;
}

.steps li {
  margin: 0.6rem 0;
  padding-left: 0.5rem;
}

.steps strong {
  color: var(--accent);
}

table {
  width: 100%;
  border-collapse: collapse;
  margin-top: 0.5rem;
}

th, td {
  text-align: left;
  padding: 0.75rem 1rem;
  border-bottom: 1px solid var(--border);
}

th {
  background: var(--accent-soft);
  color: var(--accent);
  font-weight: 600;
}

tr:last-child td {
  border-bottom: none;
}

.checklist {
  list-style: none;
  padding: 0;
}

.checklist li {
  padding: 0.5rem 0 0.5rem 1.8rem;
  position: relative;
  border-bottom: 1px solid var(--border);
}

.checklist li:last-child {
  border-bottom: none;
}

.checklist li::before {
  content: "☐";
  position: absolute;
  left: 0;
  color: var(--ok);
  font-size: 1.2rem;
  top: 0.3rem;
}

footer {
  text-align: center;
  padding: 2rem;
  color: var(--muted);
  border-top: 1px solid var(--border);
  margin-top: 2rem;
  font-size: 0.9rem;
}

@media (max-width: 640px) {
  main { padding: 1rem; }
  section { padding: 1rem; }
  header { padding: 2rem 1rem; }
  header h1 { font-size: 1.6rem; }
  .diagram { font-size: 0.7rem; }
}

/* ---------- Top navigation ---------- */
.topnav {
  display: flex;
  gap: 0.5rem;
  padding: 1rem 2rem;
  background: var(--surface);
  border-bottom: 1px solid var(--border);
}

.topnav a {
  color: var(--muted);
  text-decoration: none;
  padding: 0.5rem 1rem;
  border-radius: 8px;
  font-weight: 500;
  transition: background 0.15s ease, color 0.15s ease;
}

.topnav a:hover {
  background: var(--accent-soft);
  color: var(--accent);
}

.topnav a.active {
  background: var(--accent-soft);
  color: var(--accent);
}

/* ---------- Hero (ikke-faile-sida) ---------- */
.hero {
  background: linear-gradient(135deg, #1a1d24 0%, #0f1115 60%, #1a3a5c 100%);
  padding: 4rem 2rem;
  text-align: center;
  border-bottom: 1px solid var(--border);
}

.hero h1 {
  margin: 0;
  font-size: 2.6rem;
  line-height: 1.2;
}

.hero .strike {
  text-decoration: line-through;
  text-decoration-color: #ff4d6d;
  text-decoration-thickness: 4px;
  color: var(--muted);
}

.hero .sub {
  color: var(--muted);
  font-size: 1.2rem;
  margin-top: 0.5rem;
}

/* ---------- Proof-seksjoner ---------- */
.proof h2 {
  color: var(--ok);
  border-color: rgba(74, 222, 128, 0.3);
}

.stack {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 0.6rem;
  margin-top: 1rem;
}

.brick {
  background: rgba(74, 222, 128, 0.08);
  border: 1px solid rgba(74, 222, 128, 0.25);
  border-radius: 8px;
  padding: 0.75rem 1rem;
  font-weight: 500;
}

.fails {
  list-style: none;
  padding: 0;
}

.fails li {
  background: var(--code-bg);
  border-left: 3px solid #f0b95c;
  padding: 0.75rem 1rem;
  margin: 0.6rem 0;
  border-radius: 4px;
}

.fails strong {
  color: #f0b95c;
}

/* ---------- Mantra-seksjon ---------- */
.mantra {
  background: linear-gradient(135deg, var(--surface), #1a3a5c);
  border-color: var(--accent);
  text-align: center;
}

.mantra .big {
  font-size: 1.3rem;
  color: var(--accent);
  font-weight: 500;
  line-height: 1.7;
}

/* ---------- Mål-seksjon ---------- */
.goal ol {
  padding-left: 1.5rem;
}

.goal li {
  margin: 0.6rem 0;
  font-size: 1.05rem;
}