/* FixPoint — diagnostic-bench design system
   Palette: cool workshop light, slate ink, circuit blue, LED status colors */
:root {
  --bg: #F3F6F8;
  --panel: #FFFFFF;
  --ink: #14212B;
  --ink-soft: #4B5B68;
  --line: #D7DFE6;
  --blue: #1553CE;
  --blue-dark: #0F3E9C;
  --green: #17A468;
  --amber: #E19A17;
  --red: #D93B3B;
  --mono-bg: #0E1B24;
  --mono-ink: #9FE8C4;
  --radius: 10px;
  --display: "Space Grotesk", sans-serif;
  --body: "IBM Plex Sans", sans-serif;
  --mono: "IBM Plex Mono", monospace;
}

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

html { scroll-behavior: smooth; }

body {
  font-family: var(--body);
  color: var(--ink);
  background: var(--bg);
  line-height: 1.6;
}

.wrap { max-width: 1080px; margin: 0 auto; padding: 0 24px; }

.visually-hidden {
  position: absolute; width: 1px; height: 1px;
  clip: rect(0 0 0 0); overflow: hidden;
}

/* LEDs — the site's status vernacular */
.led {
  display: inline-block; width: 9px; height: 9px; border-radius: 50%;
  vertical-align: middle;
}
.led-green { background: var(--green); box-shadow: 0 0 6px rgba(23,164,104,.6); }
.led-amber { background: var(--amber); box-shadow: 0 0 6px rgba(225,154,23,.6); }
.led-red   { background: var(--red);   box-shadow: 0 0 6px rgba(217,59,59,.6); }

/* Header */
.site-header {
  position: sticky; top: 0; z-index: 20;
  background: rgba(243,246,248,.92);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--line);
}
.header-row {
  display: flex; align-items: center; justify-content: space-between;
  height: 60px;
}
.brand {
  display: flex; align-items: center; gap: 10px;
  text-decoration: none; color: var(--ink);
}
.brand-name {
  font-family: var(--display); font-weight: 700; font-size: 1.15rem;
  letter-spacing: .02em;
}
.nav { display: flex; gap: 26px; }
.nav a {
  color: var(--ink-soft); text-decoration: none; font-size: .92rem; font-weight: 500;
}
.nav a:hover, .nav a:focus-visible { color: var(--blue); }

/* Buttons */
.btn {
  display: inline-block; padding: 11px 22px; border-radius: var(--radius);
  font-family: var(--body); font-weight: 600; font-size: .95rem;
  text-decoration: none; border: 1px solid transparent; cursor: pointer;
  transition: background .15s ease, border-color .15s ease;
}
.btn-primary { background: var(--blue); color: #fff; }
.btn-primary:hover, .btn-primary:focus-visible { background: var(--blue-dark); }
.btn-ghost { background: transparent; color: var(--ink); border-color: var(--line); }
.btn-ghost:hover, .btn-ghost:focus-visible { border-color: var(--blue); color: var(--blue); }
:focus-visible { outline: 2px solid var(--blue); outline-offset: 2px; }

/* Hero */
.hero { padding: 72px 0 56px; }
.hero-grid {
  display: grid; grid-template-columns: 1.1fr .9fr; gap: 48px; align-items: center;
}
.eyebrow {
  font-family: var(--mono); font-size: .78rem; letter-spacing: .08em;
  text-transform: uppercase; color: var(--blue); margin-bottom: 14px;
}
h1 {
  font-family: var(--display); font-weight: 700;
  font-size: clamp(2rem, 4.4vw, 3.1rem); line-height: 1.08;
  letter-spacing: -.015em; margin-bottom: 18px;
}
.lede { color: var(--ink-soft); font-size: 1.06rem; max-width: 46ch; margin-bottom: 26px; }
.hero-actions { display: flex; gap: 12px; flex-wrap: wrap; }

/* POST panel (signature element) */
.post-panel {
  background: var(--mono-bg); border-radius: var(--radius);
  border: 1px solid #223543; overflow: hidden;
  box-shadow: 0 18px 40px -18px rgba(14,27,36,.45);
}
.post-titlebar {
  display: flex; align-items: center; gap: 10px;
  padding: 10px 16px; border-bottom: 1px solid #223543;
  font-family: var(--mono); font-size: .72rem; letter-spacing: .1em;
  color: #7FA3B5;
}
.post-body {
  font-family: var(--mono); font-size: .82rem; line-height: 1.75;
  color: var(--mono-ink); padding: 18px 20px; min-height: 218px;
  white-space: pre-wrap;
}

/* Sections */
.section { padding: 64px 0; }
.section-title {
  font-family: var(--display); font-weight: 700;
  font-size: clamp(1.5rem, 2.6vw, 2rem); letter-spacing: -.01em;
}
.section-sub { color: var(--ink-soft); margin: 8px 0 30px; }

/* Symptom grid */
.symptom-grid {
  display: grid; grid-template-columns: repeat(4, 1fr); gap: 14px;
}
.symptom {
  display: flex; flex-direction: column; align-items: flex-start; gap: 8px;
  background: var(--panel); border: 1px solid var(--line); border-radius: var(--radius);
  padding: 18px; cursor: pointer; text-align: left;
  font-family: var(--body);
  transition: border-color .15s ease, transform .15s ease;
}
.symptom:hover, .symptom:focus-visible { border-color: var(--blue); transform: translateY(-2px); }
.symptom-name { font-weight: 600; font-size: .98rem; color: var(--ink); }
.symptom-code {
  font-family: var(--mono); font-size: .72rem; color: var(--ink-soft);
  letter-spacing: .08em;
}

/* Console */
.section-console { background: #E9EEF2; border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.console {
  background: var(--panel); border: 1px solid var(--line); border-radius: var(--radius);
  overflow: hidden; box-shadow: 0 10px 30px -18px rgba(20,33,43,.25);
}
.console-titlebar {
  display: flex; align-items: center; gap: 10px;
  padding: 10px 16px; border-bottom: 1px solid var(--line);
  font-family: var(--mono); font-size: .72rem; letter-spacing: .1em; color: var(--ink-soft);
}
.console-status { margin-left: auto; }
.console-log {
  height: 380px; overflow-y: auto; padding: 20px;
  display: flex; flex-direction: column; gap: 14px;
}
.msg { max-width: 78%; padding: 12px 16px; border-radius: var(--radius); font-size: .95rem; }
.msg-user { align-self: flex-end; background: var(--blue); color: #fff; border-bottom-right-radius: 3px; }
.msg-ai   { align-self: flex-start; background: #F0F4F7; color: var(--ink); border-bottom-left-radius: 3px; }
.msg-ai .msg-label, .msg-user .msg-label {
  display: block; font-family: var(--mono); font-size: .68rem;
  letter-spacing: .1em; margin-bottom: 6px; opacity: .65;
}
.msg-ai p + p { margin-top: 8px; }
.msg-typing { font-family: var(--mono); color: var(--ink-soft); font-size: .85rem; }
.chat-link { color: var(--blue); text-decoration: underline; word-break: break-all; }
.msg-user .chat-link { color: #fff; }
.console-input {
  display: flex; gap: 10px; padding: 14px; border-top: 1px solid var(--line);
}
.console-input input {
  flex: 1; padding: 11px 14px; border: 1px solid var(--line); border-radius: var(--radius);
  font-family: var(--body); font-size: .95rem; background: var(--bg);
}
.console-input input:focus { outline: 2px solid var(--blue); outline-offset: 1px; }
.console-note { font-size: .82rem; color: var(--ink-soft); margin-top: 14px; }

/* Guides */
.guides { display: grid; gap: 12px; }
.guide {
  background: var(--panel); border: 1px solid var(--line); border-radius: var(--radius);
  padding: 0 20px;
}
.guide summary {
  cursor: pointer; padding: 16px 0; font-weight: 600; list-style: none;
  display: flex; align-items: center; gap: 12px;
}
.guide summary::-webkit-details-marker { display: none; }
.guide summary::after { content: "+"; margin-left: auto; font-family: var(--mono); color: var(--ink-soft); }
.guide[open] summary::after { content: "–"; }
.guide-code {
  font-family: var(--mono); font-size: .72rem; letter-spacing: .08em;
  color: var(--blue); background: #E8EEFB; padding: 3px 8px; border-radius: 5px;
}
.guide ol { padding: 0 0 18px 22px; color: var(--ink-soft); }
.guide li + li { margin-top: 6px; }

/* Pricing */
.section-pricing { background: var(--bg); }
.pricing-grid {
  display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px;
  margin: 34px 0 18px;
}
.price-card {
  background: var(--panel); border: 1px solid var(--line); border-radius: var(--radius);
  padding: 28px 24px; display: flex; flex-direction: column; position: relative;
}
.price-card-featured {
  border-color: var(--blue); border-width: 2px;
  box-shadow: 0 14px 34px -18px rgba(21,83,206,.4);
}
.price-badge {
  position: absolute; top: -12px; left: 24px;
  background: var(--blue); color: #fff; font-size: .72rem; font-weight: 600;
  padding: 4px 12px; border-radius: 20px; letter-spacing: .02em;
}
.price-card h3 {
  font-family: var(--display); font-size: 1.15rem; color: var(--ink); margin-bottom: 10px;
}
.price { font-size: 1rem; color: var(--ink-soft); margin-bottom: 18px; }
.price strong { font-size: 2rem; color: var(--ink); font-family: var(--display); }
.price span { font-size: .9rem; }
.price-card ul { list-style: none; padding: 0; margin: 0 0 22px; flex: 1; }
.price-card li {
  padding: 7px 0 7px 24px; position: relative; color: var(--ink-soft); font-size: .94rem;
  border-bottom: 1px solid #F0F3F6;
}
.price-card li::before {
  content: "✓"; position: absolute; left: 0; color: var(--green); font-weight: 700;
}
.price-btn { width: 100%; text-align: center; justify-content: center; }
.pricing-note {
  text-align: center; font-size: .84rem; color: var(--ink-soft);
  max-width: 60ch; margin: 0 auto;
}

/* Services / For Business */
.section-services {
  background: #E9EEF2;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}
.services-grid {
  display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px;
  margin: 34px 0;
}
.service-card {
  background: var(--panel); border: 1px solid var(--line); border-radius: var(--radius);
  padding: 26px 22px;
}
.service-icon { font-size: 1.8rem; display: block; margin-bottom: 12px; }
.service-card h3 {
  font-family: var(--display); font-size: 1.1rem; margin-bottom: 8px; color: var(--ink);
}
.service-card p { color: var(--ink-soft); font-size: .95rem; margin: 0; }
.services-cta {
  display: flex; align-items: center; justify-content: space-between; gap: 24px;
  background: var(--mono-bg); color: #fff; border-radius: var(--radius);
  padding: 28px 30px; flex-wrap: wrap;
}
.services-cta h3 { font-family: var(--display); color: #fff; }
.services-cta .section-sub { color: #9FB3C0 !important; }

/* Contact */
.section-contact { padding-bottom: 72px; }
.contact-card {
  display: flex; align-items: center; justify-content: space-between; gap: 28px;
  background: var(--panel); border: 1px solid var(--line); border-radius: var(--radius);
  padding: 32px; flex-wrap: wrap;
}
.btn-wa {
  display: inline-flex; align-items: center; gap: 10px;
  background: #1FAF5E; color: #fff; white-space: nowrap;
}
.btn-wa:hover, .btn-wa:focus-visible { background: #178A4A; }
.contact-lines { margin: 0; font-size: .98rem; color: var(--ink); }
.contact-lines a { color: var(--blue); text-decoration: none; font-weight: 600; }
.contact-lines a:hover { text-decoration: underline; }

/* Floating WhatsApp button */
.wa-float {
  position: fixed; right: 20px; bottom: 20px; z-index: 30;
  display: flex; align-items: center; justify-content: center;
  width: 56px; height: 56px; border-radius: 50%;
  background: #1FAF5E; color: #fff;
  box-shadow: 0 8px 24px -6px rgba(23,138,74,.55);
  transition: transform .15s ease, background .15s ease;
}
.wa-float:hover, .wa-float:focus-visible { transform: scale(1.07); background: #178A4A; }

/* Footer */
.site-footer { border-top: 1px solid var(--line); padding: 22px 0; }
.footer-row {
  display: flex; justify-content: space-between; align-items: center;
  font-size: .88rem; color: var(--ink-soft); gap: 12px; flex-wrap: wrap;
}
.footer-row .led { margin-right: 8px; }
.footer-mono { font-family: var(--mono); font-size: .72rem; letter-spacing: .1em; }

/* Responsive */
@media (max-width: 860px) {
  .hero-grid { grid-template-columns: 1fr; gap: 32px; }
  .symptom-grid { grid-template-columns: repeat(2, 1fr); }
  .nav { display: none; }
  .services-grid { grid-template-columns: 1fr; }
  .pricing-grid { grid-template-columns: 1fr; }
}
@media (max-width: 480px) {
  .symptom-grid { grid-template-columns: 1fr; }
  .msg { max-width: 92%; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .symptom, .btn { transition: none; }
}