/* ============================================================
   Circuit Breaker Labs — design tokens
   Direction: diagnostic terminal. Dark instrument-panel surface,
   amber "fault" accent for what's broken, green "trace" accent
   for what's fixed and verified. Monospace for anything that is
   literally code or a log line; a geometric sans for voice.
   ============================================================ */

:root {
  --color-bg: oklch(14% 0.012 260);
  --color-surface: oklch(19% 0.014 260);
  --color-surface-raised: oklch(23% 0.016 260);
  --color-border: oklch(32% 0.02 260);
  --color-text: oklch(92% 0.01 260);
  --color-text-dim: oklch(68% 0.015 260);
  --color-text-faint: oklch(48% 0.015 260);

  --color-fault: oklch(72% 0.19 45);       /* amber — the bug */
  --color-fault-dim: oklch(40% 0.1 45);
  --color-trace: oklch(76% 0.17 155);      /* green — the fix, verified */
  --color-trace-dim: oklch(40% 0.09 155);
  --color-signal: oklch(74% 0.15 235);     /* blue — informational / links */

  --font-display: "Fjalla One", "Archivo Narrow", "Arial Narrow", sans-serif;
  --font-body: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  --font-mono: "JetBrains Mono", "SF Mono", "Menlo", monospace;

  --text-hero: clamp(2.6rem, 1.6rem + 4.5vw, 5.2rem);
  --text-h2: clamp(1.8rem, 1.4rem + 1.8vw, 2.8rem);
  --text-h3: clamp(1.2rem, 1.05rem + 0.6vw, 1.5rem);
  --text-base: clamp(1rem, 0.94rem + 0.25vw, 1.08rem);
  --text-small: 0.875rem;

  --space-section: clamp(4rem, 3rem + 4vw, 8rem);
  --space-lg: clamp(2rem, 1.6rem + 1.8vw, 3.5rem);
  --space-md: 1.5rem;
  --space-sm: 0.75rem;

  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 16px;

  --duration-fast: 150ms;
  --duration-normal: 320ms;
  --ease-out-expo: cubic-bezier(0.16, 1, 0.3, 1);

  --max-width: 1180px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation-duration: 0.01ms !important; animation-iteration-count: 1 !important; transition-duration: 0.01ms !important; scroll-behavior: auto !important; }
}

body {
  margin: 0;
  background:
    radial-gradient(ellipse 900px 500px at 15% -10%, oklch(24% 0.03 45 / 0.35), transparent 60%),
    radial-gradient(ellipse 700px 500px at 100% 10%, oklch(24% 0.03 155 / 0.25), transparent 55%),
    var(--color-bg);
  color: var(--color-text);
  font-family: var(--font-body);
  font-size: var(--text-base);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

.wrap {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 var(--space-md);
}

h1, h2, h3 { font-family: var(--font-display); font-weight: 400; letter-spacing: 0.01em; line-height: 1.08; margin: 0; }
h2 { font-size: var(--text-h2); }
h3 { font-size: var(--text-h3); }
p { margin: 0 0 1em; color: var(--color-text-dim); }
a { color: var(--color-signal); text-decoration: none; }
a:hover { text-decoration: underline; }
code, pre, .mono { font-family: var(--font-mono); }

/* ---- header ---- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 40;
  backdrop-filter: blur(10px);
  background: oklch(14% 0.012 260 / 0.82);
  border-bottom: 1px solid var(--color-border);
}
.site-header .wrap {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-block: 0.9rem;
}
.logo {
  display: flex;
  align-items: baseline;
  gap: 0.5rem;
  font-family: var(--font-display);
  font-size: 1.15rem;
  color: var(--color-text);
}
.logo .dot { color: var(--color-fault); }
.site-nav { display: flex; gap: 1.6rem; align-items: center; }
.site-nav a { color: var(--color-text-dim); font-size: var(--text-small); }
.site-nav a:hover { color: var(--color-text); text-decoration: none; }
.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.65rem 1.2rem;
  border-radius: var(--radius-sm);
  font-weight: 600;
  font-size: var(--text-small);
  border: 1px solid transparent;
  cursor: pointer;
  transition: transform var(--duration-fast) var(--ease-out-expo), background var(--duration-fast);
}
.btn:hover { text-decoration: none; transform: translateY(-1px); }
.btn-primary { background: var(--color-trace); color: oklch(14% 0.02 155); }
.btn-primary:hover { background: oklch(82% 0.18 155); }
.btn-ghost { border-color: var(--color-border); color: var(--color-text); background: transparent; }
.btn-ghost:hover { border-color: var(--color-text-dim); }

/* ---- hero ---- */
.hero { padding-block: clamp(3rem, 2rem + 5vw, 6rem) var(--space-section); }
.hero-kicker {
  font-family: var(--font-mono);
  font-size: var(--text-small);
  color: var(--color-fault);
  text-transform: uppercase;
  letter-spacing: 0.14em;
  display: flex;
  align-items: center;
  gap: 0.6rem;
  margin-bottom: 1.2rem;
}
.hero-kicker::before {
  content: "";
  width: 8px; height: 8px; border-radius: 50%;
  background: var(--color-fault);
  box-shadow: 0 0 0 4px var(--color-fault-dim);
  animation: pulse 1.8s ease-in-out infinite;
}
@keyframes pulse { 0%, 100% { opacity: 1; } 50% { opacity: 0.35; } }
.hero h1 { font-size: var(--text-hero); max-width: 15ch; }
.hero h1 .accent { color: var(--color-trace); }
.hero-sub { max-width: 54ch; font-size: 1.15rem; margin-top: 1.4rem; }
.hero-ctas { display: flex; gap: 1rem; margin-top: 2rem; flex-wrap: wrap; }
.hero-log {
  margin-top: var(--space-lg);
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 1.1rem 1.3rem;
  font-family: var(--font-mono);
  font-size: 0.82rem;
  max-width: 640px;
  overflow-x: auto;
}
.hero-log .l { display: flex; gap: 0.8rem; padding: 0.15rem 0; white-space: nowrap; }
.hero-log .ts { color: var(--color-text-faint); flex-shrink: 0; }
.hero-log .lvl-error { color: var(--color-fault); }
.hero-log .lvl-info { color: var(--color-trace); }
.hero-log .lvl-warn { color: oklch(78% 0.15 90); }

/* ---- section shell ---- */
section { padding-block: var(--space-section); border-top: 1px solid var(--color-border); }
.section-head { max-width: 60ch; margin-bottom: var(--space-lg); }
.section-kicker {
  font-family: var(--font-mono);
  font-size: var(--text-small);
  color: var(--color-signal);
  text-transform: uppercase;
  letter-spacing: 0.12em;
  margin-bottom: 0.6rem;
  display: block;
}

/* ---- symptoms / bug grid ---- */
.symptom-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 1px;
  background: var(--color-border);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  overflow: hidden;
}
.symptom-card {
  background: var(--color-surface);
  padding: 1.6rem;
  transition: background var(--duration-fast);
}
.symptom-card:hover { background: var(--color-surface-raised); }
.symptom-card .sev {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  padding: 0.2rem 0.5rem;
  border-radius: 4px;
  display: inline-block;
  margin-bottom: 0.9rem;
}
.sev-critical { background: oklch(30% 0.09 25); color: oklch(80% 0.16 25); }
.sev-high { background: var(--color-fault-dim); color: var(--color-fault); }
.sev-medium { background: oklch(30% 0.06 90); color: oklch(78% 0.13 90); }
.symptom-card h3 { font-size: 1.05rem; margin-bottom: 0.5rem; }
.symptom-card p { font-size: var(--text-small); margin: 0; }

/* ---- process ---- */
.process-list { display: grid; gap: 0; counter-reset: step; }
.process-step {
  display: grid;
  grid-template-columns: 3.5rem 1fr;
  gap: 1.5rem;
  padding-block: 1.6rem;
  border-top: 1px solid var(--color-border);
}
.process-step:first-child { border-top: none; }
.process-step .num {
  font-family: var(--font-mono);
  font-size: 1.6rem;
  color: var(--color-text-faint);
}
.process-step h3 { margin-bottom: 0.4rem; }
.process-step p { margin: 0; max-width: 60ch; }

/* ---- pricing ---- */
.tier-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: var(--space-md);
  align-items: stretch;
}
.tier-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-md);
  display: flex;
  flex-direction: column;
  position: relative;
}
.tier-card.featured {
  border-color: var(--color-trace);
  background: linear-gradient(180deg, oklch(22% 0.03 155 / 0.5), var(--color-surface) 40%);
}
.tier-card.featured::before {
  content: "MATCHES YOUR BUDGET";
  position: absolute;
  top: -0.7rem;
  left: 1.5rem;
  background: var(--color-trace);
  color: oklch(14% 0.02 155);
  font-family: var(--font-mono);
  font-size: 0.65rem;
  letter-spacing: 0.08em;
  padding: 0.3rem 0.6rem;
  border-radius: 4px;
  font-weight: 700;
}
.tier-name { font-family: var(--font-mono); font-size: var(--text-small); color: var(--color-text-dim); text-transform: uppercase; letter-spacing: 0.08em; }
.tier-price { font-family: var(--font-display); font-size: 2.6rem; margin: 0.4rem 0 1rem; color: var(--color-text); }
.tier-price span { font-size: 1rem; color: var(--color-text-faint); font-family: var(--font-body); }
.tier-card ul { list-style: none; padding: 0; margin: 0 0 1.5rem; flex-grow: 1; }
.tier-card li { display: flex; gap: 0.6rem; padding: 0.45rem 0; font-size: var(--text-small); color: var(--color-text-dim); border-top: 1px dashed var(--color-border); }
.tier-card li:first-child { border-top: none; }
.tier-card li::before { content: "✓"; color: var(--color-trace); flex-shrink: 0; }

/* ---- sample report teaser ---- */
.report-teaser {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-lg);
  display: grid;
  grid-template-columns: 1.1fr 1fr;
  gap: var(--space-lg);
  align-items: center;
}
@media (max-width: 800px) { .report-teaser { grid-template-columns: 1fr; } }
.diff-block {
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  font-family: var(--font-mono);
  font-size: 0.78rem;
  overflow: hidden;
}
.diff-block .diff-line { padding: 0.3rem 0.9rem; white-space: pre; overflow-x: auto; }
.diff-block .diff-remove { background: oklch(28% 0.07 25 / 0.5); color: oklch(85% 0.1 25); }
.diff-block .diff-add { background: oklch(24% 0.06 155 / 0.5); color: oklch(85% 0.12 155); }
.diff-block .diff-label { padding: 0.5rem 0.9rem; font-size: 0.68rem; text-transform: uppercase; letter-spacing: 0.08em; color: var(--color-text-faint); border-bottom: 1px solid var(--color-border); }

/* ---- contact form ---- */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-lg);
}
@media (max-width: 800px) { .contact-grid { grid-template-columns: 1fr; } }
form { display: grid; gap: 1rem; }
label { font-size: var(--text-small); color: var(--color-text-dim); display: grid; gap: 0.4rem; }
input, textarea, select {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  padding: 0.7rem 0.8rem;
  color: var(--color-text);
  font-family: var(--font-body);
  font-size: 0.95rem;
}
input:focus, textarea:focus, select:focus {
  outline: 2px solid var(--color-trace);
  outline-offset: 1px;
  border-color: var(--color-trace);
}
textarea { resize: vertical; min-height: 100px; }
.honeypot-field { position: absolute; left: -9999px; opacity: 0; height: 0; width: 0; }
.form-status { font-size: var(--text-small); min-height: 1.4em; }
.form-status.success { color: var(--color-trace); }
.form-status.error { color: var(--color-fault); }

.payment-note { background: var(--color-surface); border: 1px solid var(--color-border); border-radius: var(--radius-md); padding: 1.2rem 1.4rem; font-size: var(--text-small); }
.payment-note .addr { font-family: var(--font-mono); word-break: break-all; color: var(--color-trace); font-size: 0.78rem; }

/* ---- footer ---- */
footer { border-top: 1px solid var(--color-border); padding-block: var(--space-md); }
footer .wrap { display: flex; justify-content: space-between; flex-wrap: wrap; gap: 1rem; font-size: var(--text-small); color: var(--color-text-faint); }

/* ---- reveal-on-scroll ---- */
.reveal { opacity: 0; transform: translateY(14px); transition: opacity var(--duration-normal) var(--ease-out-expo), transform var(--duration-normal) var(--ease-out-expo); }
.reveal.is-visible { opacity: 1; transform: none; }