/* FixLogic — editorial "field-manual" redesign
   Serif display (Fraunces) + clean sans (Inter) + mono labels (JetBrains Mono)
   on a warm paper palette with a safety-orange accent. */

:root {
  --paper: #f4f0e8;
  --paper-2: #ece6d9;
  --panel: #fbf9f4;
  --ink: #1d1b16;
  --ink-soft: #5c574c;
  --ink-faint: #8b8475;
  --line: #ddd4c2;
  --line-strong: #c9bfa8;
  --accent: #e2542b;
  --accent-deep: #bb3f1c;
  --accent-soft: #f7e6dc;
  --green: #2f7d4f;
  --amber: #b1700a;
  --red: #c2381f;
  --serif: "Fraunces", Georgia, "Times New Roman", serif;
  --sans: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  --mono: "JetBrains Mono", ui-monospace, "SFMono-Regular", Menlo, monospace;
  --radius: 4px;
  --maxw: 1140px;
  --shadow: 0 1px 0 var(--line-strong);
  --shadow-hard: 6px 6px 0 var(--ink);
  font-synthesis: none;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: var(--sans);
  color: var(--ink);
  background-color: var(--paper);
  background-image: radial-gradient(var(--line) 1px, transparent 1px);
  background-size: 26px 26px;
  line-height: 1.62;
  -webkit-font-smoothing: antialiased;
}
.container { width: 100%; max-width: var(--maxw); margin: 0 auto; padding: 0 26px; }
.narrow { max-width: 720px; }
.center { text-align: center; }
a { color: var(--accent-deep); text-decoration: none; }
a:hover { text-decoration: underline; text-underline-offset: 3px; }

h1, h2, h3 { font-family: var(--serif); color: var(--ink); margin: 0 0 .4em; line-height: 1.08; font-weight: 600; letter-spacing: -0.01em; }

/* Eyebrow / mono labels */
.eyebrow {
  display: inline-block; font-family: var(--mono); font-size: .72rem; font-weight: 700;
  letter-spacing: .16em; text-transform: uppercase; color: var(--accent-deep);
  margin-bottom: 1rem; padding-left: 2.2rem; position: relative;
}
.eyebrow::before { content: ""; position: absolute; left: 0; top: .5em; width: 1.6rem; height: 2px; background: var(--accent); }

.u-accent { color: var(--accent); font-style: italic; }

/* Buttons */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: .5rem;
  cursor: pointer; border: 1.5px solid var(--ink); border-radius: var(--radius);
  background: var(--ink); color: var(--paper);
  font-family: var(--sans); font-weight: 600; font-size: .95rem; padding: .78rem 1.4rem;
  transition: transform .1s ease, box-shadow .12s ease, background .15s ease, color .15s ease;
}
.btn:hover { text-decoration: none; background: var(--accent); border-color: var(--accent); color: #fff; transform: translateY(-1px); }
.btn:active { transform: translateY(0); }
.btn[disabled] { opacity: .55; cursor: not-allowed; transform: none; }
.btn-sm { padding: .5rem 1rem; font-size: .85rem; }
.btn-block { width: 100%; }
.btn-ghost { background: transparent; color: var(--ink); border-color: var(--line-strong); }
.btn-ghost:hover { background: var(--ink); color: var(--paper); border-color: var(--ink); }

/* Header */
.site-header {
  position: sticky; top: 0; z-index: 40;
  background: rgba(244, 240, 232, .9);
  backdrop-filter: saturate(140%) blur(8px);
  border-bottom: 1.5px solid var(--ink);
}
.nav { display: flex; align-items: center; justify-content: space-between; height: 66px; }
.brand { display: flex; align-items: center; gap: .6rem; color: var(--ink); }
.brand:hover { text-decoration: none; }
.brand-mark { display: grid; place-items: center; width: 34px; height: 34px; border-radius: var(--radius);
  background: var(--accent); color: #fff; border: 1.5px solid var(--ink); }
.brand-text { font-family: var(--serif); font-weight: 700; font-size: 1.3rem; letter-spacing: -0.02em; }
.brand-text em { font-family: var(--mono); font-style: normal; font-weight: 500; font-size: .56rem;
  text-transform: uppercase; letter-spacing: .18em; color: var(--ink-faint); display: block; margin-top: -2px; }
.nav-links { display: flex; align-items: center; gap: 1.6rem; }
.nav-links a { color: var(--ink-soft); font-weight: 500; font-size: .92rem; }
.nav-links a:hover { color: var(--ink); text-decoration: none; }
.nav-links a.btn { color: var(--paper); }
.nav-links a.btn:hover { color: #fff; }

/* Hero */
.hero { padding: 72px 0 64px; border-bottom: 1.5px solid var(--ink); }
.hero-grid { display: grid; grid-template-columns: 1.08fr .92fr; gap: 56px; align-items: start; }
.hero h1 { font-size: clamp(2.4rem, 5.2vw, 4rem); font-weight: 600; letter-spacing: -0.025em; margin-top: .2rem; }
.lede { font-size: 1.16rem; color: var(--ink-soft); margin: 1.1rem 0 1.5rem; max-width: 34em; }
.hero-meta { display: flex; flex-wrap: wrap; gap: .6rem 1.4rem; }
.tick { font-family: var(--mono); font-size: .78rem; font-weight: 500; color: var(--ink); position: relative; padding-left: 1.4rem; }
.tick::before { content: "✓"; position: absolute; left: 0; color: var(--accent); font-weight: 700; }

/* Diagnostic console = "work order" */
.tool {
  background: var(--panel); border: 1.5px solid var(--ink); border-radius: var(--radius);
  box-shadow: var(--shadow-hard); overflow: hidden;
}
.tool-head {
  display: flex; align-items: center; justify-content: space-between;
  padding: 11px 16px; background: var(--ink); color: var(--paper);
}
.tool-tag { font-family: var(--mono); font-size: .74rem; font-weight: 700; letter-spacing: .14em; text-transform: uppercase; }
.tool-ref { font-family: var(--mono); font-size: .74rem; color: var(--accent); font-weight: 700; letter-spacing: .08em; }
.tool-body { padding: 22px; }
.field-label { display: block; font-family: var(--mono); font-size: .72rem; font-weight: 700; color: var(--ink-faint);
  margin: .2rem 0 .45rem; text-transform: uppercase; letter-spacing: .1em; }
.select, .textarea, .input {
  width: 100%; border: 1.5px solid var(--line-strong); border-radius: var(--radius);
  padding: .72rem .85rem; font-family: var(--sans); font-size: .98rem; color: var(--ink);
  background: #fff; margin-bottom: 1.1rem; transition: border-color .15s, box-shadow .15s;
}
.select:focus, .textarea:focus, .input:focus { outline: none; border-color: var(--accent); box-shadow: 0 0 0 3px var(--accent-soft); }
.textarea { resize: vertical; min-height: 116px; }
.tool-actions { display: flex; align-items: center; gap: 1rem; }
.tool-actions .btn { flex: 1; }
.hint { font-family: var(--mono); color: var(--ink-faint); font-size: .76rem; white-space: nowrap; }
.examples-quick { display: flex; flex-wrap: wrap; gap: .5rem; margin-top: 1.1rem; }
.chip { border: 1.5px solid var(--line-strong); background: var(--paper); color: var(--ink-soft);
  border-radius: 999px; padding: .38rem .85rem; font-size: .82rem; font-family: var(--sans); cursor: pointer; transition: all .15s; }
.chip:hover { border-color: var(--ink); color: var(--ink); background: #fff; }

/* Result */
.result { margin-top: 1.3rem; border-top: 1.5px dashed var(--line-strong); padding-top: 1.2rem; }
.result.loading { text-align: center; color: var(--ink-soft); }
.spinner { width: 26px; height: 26px; border: 3px solid var(--line); border-top-color: var(--accent); border-radius: 50%;
  animation: spin .8s linear infinite; margin: 8px auto; }
@keyframes spin { to { transform: rotate(360deg); } }
.res-summary { font-family: var(--serif); font-weight: 600; font-size: 1.18rem; line-height: 1.3; margin-bottom: .6rem; }
.res-block { margin: 1rem 0; }
.res-block h4 { font-family: var(--mono); font-size: .72rem; text-transform: uppercase; letter-spacing: .1em;
  color: var(--ink-faint); margin: 0 0 .4rem; font-weight: 700; }
.res-block p { margin: 0; }
.sev { display: inline-flex; align-items: center; gap: .4rem; font-family: var(--mono); font-size: .76rem;
  font-weight: 700; letter-spacing: .06em; text-transform: uppercase; padding: .28rem .7rem; border-radius: var(--radius); border: 1.5px solid currentColor; }
.sev.low { color: var(--green); }
.sev.medium { color: var(--amber); }
.sev.high { color: var(--red); }
.fix-list { list-style: none; counter-reset: fix; padding: 0; margin: 0; display: grid; gap: .55rem; }
.fix-list li { position: relative; padding: .72rem .85rem .72rem 2.8rem; background: var(--paper);
  border: 1.5px solid var(--line-strong); border-radius: var(--radius); }
.fix-list li::before { counter-increment: fix; content: counter(fix, decimal-leading-zero); position: absolute; left: .7rem; top: .68rem;
  font-family: var(--mono); font-size: .78rem; font-weight: 700; color: var(--accent-deep); }
.fix-title { font-weight: 600; }
.fix-detail { color: var(--ink-soft); font-size: .95rem; }
.callout { background: var(--accent-soft); border: 1.5px solid var(--accent); border-radius: var(--radius); padding: .72rem .9rem; font-size: .95rem; }
.res-error { color: var(--red); font-weight: 600; }

/* Sections */
.section { padding: 80px 0; }
.section.alt { background: var(--paper-2); border-top: 1.5px solid var(--ink); border-bottom: 1.5px solid var(--ink); }
.section-head { max-width: 720px; margin-bottom: 3rem; }
.section-head.center, .center .section-head { margin-left: auto; margin-right: auto; }
.section-title { font-size: clamp(1.7rem, 3.4vw, 2.6rem); font-weight: 600; letter-spacing: -0.02em; }
.section-sub { color: var(--ink-soft); font-size: 1.08rem; max-width: 40em; margin: .6rem 0 0; }
.center .section-sub, .newsletter .section-sub { margin-left: auto; margin-right: auto; }

/* Method */
.method { list-style: none; padding: 0; margin: 0; display: grid; grid-template-columns: repeat(4, 1fr); gap: 0;
  border-top: 2px solid var(--ink); }
.method-step { padding: 1.6rem 1.4rem 1.8rem 0; border-right: 1.5px solid var(--line-strong); padding-right: 1.4rem; }
.method-step:last-child { border-right: 0; }
.method-num { font-family: var(--mono); font-size: 1.05rem; font-weight: 700; color: var(--accent); display: block; margin-bottom: .9rem; }
.method-step h3 { font-size: 1.3rem; font-weight: 600; }
.method-step p { color: var(--ink-soft); margin: 0; font-size: .96rem; }

/* Catalog (examples) */
.catalog { display: grid; grid-template-columns: repeat(3, 1fr); gap: 0; border-top: 1.5px solid var(--ink); border-left: 1.5px solid var(--line-strong); }
.cat-item { padding: 1.7rem 1.6rem; border-right: 1.5px solid var(--line-strong); border-bottom: 1.5px solid var(--line-strong); background: var(--panel); position: relative; transition: background .15s; }
.cat-item:hover { background: #fff; }
.cat-no { font-family: var(--mono); font-size: .76rem; font-weight: 700; color: var(--accent-deep); letter-spacing: .1em; }
.cat-item h3 { font-size: 1.22rem; font-weight: 600; margin: .5rem 0 .35rem; }
.cat-item p { color: var(--ink-soft); margin: 0; font-size: .95rem; }

/* Principles */
.principles { display: grid; grid-template-columns: repeat(3, 1fr); gap: 2.4rem; }
.principle { border-top: 2px solid var(--accent); padding-top: 1.1rem; }
.principle h3 { font-size: 1.32rem; font-weight: 600; }
.principle p { color: var(--ink-soft); margin: 0; }

/* Pricing */
.pricing { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; align-items: stretch; }
.price { display: flex; flex-direction: column; position: relative; background: var(--panel);
  border: 1.5px solid var(--ink); border-radius: var(--radius); padding: 28px; }
.price h3 { font-size: 1.35rem; font-weight: 600; }
.price .amount { font-family: var(--serif); font-size: 2.4rem; font-weight: 600; margin: .1rem 0 1rem; letter-spacing: -0.02em; }
.price .amount span { font-family: var(--mono); font-size: .8rem; font-weight: 500; color: var(--ink-faint); letter-spacing: .04em; }
.price ul { list-style: none; padding: 0; margin: 0 0 1.6rem; display: grid; gap: .55rem; flex: 1; }
.price ul li { padding-left: 1.6rem; position: relative; color: var(--ink-soft); }
.price ul li::before { content: "→"; position: absolute; left: 0; color: var(--accent); font-weight: 700; }
.price.featured { background: var(--ink); box-shadow: var(--shadow-hard); }
.price.featured h3, .price.featured .amount { color: var(--paper); }
.price.featured .amount span, .price.featured ul li { color: #cfc6b4; }
.price.featured ul li::before { color: var(--accent); }
.badge { position: absolute; top: -13px; left: 28px; background: var(--accent); color: #fff;
  font-family: var(--mono); font-size: .68rem; font-weight: 700; padding: .28rem .7rem; border-radius: var(--radius);
  letter-spacing: .08em; text-transform: uppercase; border: 1.5px solid var(--ink); }

/* About */
.about-grid { display: grid; grid-template-columns: .9fr 1.1fr; gap: 48px; align-items: start; }
.about-head { margin-bottom: 0; }
.about-body p { color: var(--ink-soft); font-size: 1.08rem; margin: 0 0 1.1rem; }
.contact { font-weight: 600; color: var(--ink) !important; font-family: var(--mono); font-size: .95rem !important; }

/* Newsletter */
.newsletter { background: var(--paper-2); border-top: 1.5px solid var(--ink); }
.sub-form { display: flex; gap: .6rem; max-width: 480px; margin: 1.6rem auto 0; }
.sub-form .input { margin-bottom: 0; }
.sub-msg { min-height: 1.4rem; margin-top: .8rem; font-weight: 600; font-family: var(--mono); font-size: .85rem; }
.sub-msg.ok { color: var(--green); }
.sub-msg.err { color: var(--red); }

/* Footer */
.site-footer { background: var(--ink); color: #cfc6b4; padding: 48px 0 28px; }
.footer-grid { display: flex; justify-content: space-between; align-items: flex-start; gap: 24px; flex-wrap: wrap;
  padding-bottom: 22px; border-bottom: 1px solid rgba(255,255,255,.14); }
.footer-brand { color: #fff; }
.footer-brand em { color: var(--accent); }
.footer-links { display: flex; gap: 1.5rem; flex-wrap: wrap; }
.footer-links a { color: #cfc6b4; font-size: .92rem; }
.footer-links a:hover { color: #fff; }
.footer-bottom { padding-top: 18px; display: flex; justify-content: space-between; gap: 12px; flex-wrap: wrap; }
.muted { color: #9b9482; margin: .3rem 0; }
.muted.small { font-size: .82rem; max-width: 44em; }

/* Responsive */
@media (max-width: 960px) {
  .hero-grid { grid-template-columns: 1fr; gap: 40px; }
  .method { grid-template-columns: repeat(2, 1fr); }
  .method-step:nth-child(2) { border-right: 0; }
  .method-step { border-bottom: 1.5px solid var(--line-strong); }
  .method-step:nth-last-child(-n+2) { padding-bottom: 1.6rem; }
  .catalog { grid-template-columns: repeat(2, 1fr); }
  .principles { grid-template-columns: 1fr; gap: 1.8rem; }
  .pricing { grid-template-columns: 1fr; }
  .about-grid { grid-template-columns: 1fr; gap: 24px; }
}
@media (max-width: 600px) {
  .hero { padding: 48px 0 44px; }
  .section { padding: 56px 0; }
  .nav-links { gap: 1rem; }
  .nav-links a:not(.btn) { display: none; }
  .method { grid-template-columns: 1fr; border-top: 2px solid var(--ink); }
  .method-step { border-right: 0; padding-right: 0; }
  .catalog { grid-template-columns: 1fr; }
  .footer-bottom { flex-direction: column; }
}