/* =========================================================
   Anvil — landing page styles
   Aesthetic: industrial / spec-sheet. Ink on warm paper,
   one safety-orange accent, hard stamped shadows, mono labels.
   ========================================================= */

:root {
  --paper:        #f4f1ea;
  --paper-2:      #ebe5d7;
  --ink:          #181410;
  --ink-soft:     #3c352c;
  --ink-mute:     #6d6456;
  --accent:       #f04e23;
  --accent-deep:  #c23a17;
  --steel:        #33556a;

  --line:         rgba(24, 20, 16, 0.16);
  --line-strong:  #181410;

  --font-display: "Bricolage Grotesque", "Arial Narrow", system-ui, sans-serif;
  --font-body:    "Public Sans", system-ui, -apple-system, "Segoe UI", sans-serif;
  --font-mono:    "DM Mono", ui-monospace, "SFMono-Regular", Menlo, Consolas, monospace;

  --radius: 2px;
  --stamp:  4px 4px 0 var(--line-strong);
  --stamp-accent: 4px 4px 0 var(--accent);

  --wrap: 1120px;
  --pad: clamp(1.25rem, 5vw, 4rem);

  /* dark-panel local overrides get set in .panel--dark */
  --bg: var(--paper);
  --fg: var(--ink);
}

/* ---------- reset-ish ---------- */
*, *::before, *::after { box-sizing: border-box; }
* { margin: 0; }
html { -webkit-text-size-adjust: 100%; }
@media (prefers-reduced-motion: no-preference) {
  html { scroll-behavior: smooth; }
}
body {
  font-family: var(--font-body);
  background: var(--paper);
  color: var(--ink);
  line-height: 1.6;
  font-size: clamp(1rem, 0.96rem + 0.2vw, 1.0625rem);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}
img, svg { display: block; max-width: 100%; }
a { color: inherit; }
button, input, select { font: inherit; color: inherit; }

/* ---------- helpers ---------- */
.wrap {
  width: 100%;
  max-width: var(--wrap);
  margin-inline: auto;
  padding-inline: var(--pad);
}
.sr-only {
  position: absolute; width: 1px; height: 1px;
  padding: 0; margin: -1px; overflow: hidden;
  clip: rect(0 0 0 0); white-space: nowrap; border: 0;
}
.skip-link {
  position: absolute; left: 0; top: 0;
  transform: translateY(-120%);
  background: var(--ink); color: var(--paper);
  padding: .7rem 1.1rem; z-index: 100;
  font-family: var(--font-mono); font-size: .8rem;
  text-decoration: none;
}
.skip-link:focus { transform: translateY(0); }

:where(a, button, input, select, summary):focus-visible {
  outline: 3px solid var(--accent);
  outline-offset: 2px;
}

/* ---------- kicker / section headings ---------- */
.kicker {
  font-family: var(--font-mono);
  font-size: .78rem;
  letter-spacing: .14em;
  text-transform: uppercase;
  color: var(--ink-mute);
  margin-bottom: 1.1rem;
}
.kicker--accent { color: var(--accent); }
.panel--dark .kicker { color: rgba(244,241,234,.55); }
.panel--dark .kicker--accent { color: var(--accent); }

.section-title {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(1.9rem, 1.3rem + 3vw, 3.15rem);
  line-height: 1.04;
  letter-spacing: -0.02em;
  max-width: 20ch;
}
.section-intro, .section-foot {
  color: var(--ink-mute);
  max-width: 52ch;
}
.panel--dark .section-intro, .panel--dark .section-foot { color: rgba(244,241,234,.6); }
.section-intro { margin-top: 1rem; font-size: 1.05rem; }
.section-foot {
  margin-top: 2rem;
  font-family: var(--font-mono);
  font-size: .82rem;
  line-height: 1.7;
}

/* ---------- panels ---------- */
.panel { padding-block: clamp(3.5rem, 8vw, 6.5rem); position: relative; }
.panel + .panel { border-top: 2px solid var(--line-strong); }
.panel--dark {
  background: var(--ink);
  color: var(--paper);
  --line: rgba(244,241,234,.2);
  --line-strong: #f4f1ea;
}
.panel--dark .section-title { color: var(--paper); }

/* ---------- header ---------- */
.site-head {
  position: sticky; top: 0; z-index: 50;
  background: rgba(244,241,234,.85);
  backdrop-filter: blur(8px);
  border-bottom: 2px solid var(--line-strong);
}
.site-head__inner {
  display: flex; align-items: center; justify-content: space-between;
  min-height: 60px;
}
.brand {
  display: inline-flex; align-items: center; gap: .55rem;
  text-decoration: none;
  color: var(--ink);
}
.brand__glyph { width: 26px; height: 26px; }
.brand__word {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 1.25rem;
  letter-spacing: -0.01em;
}
.site-nav { display: flex; align-items: center; gap: clamp(1rem, 3vw, 2rem); }
.site-nav > a:not(.btn) {
  font-family: var(--font-mono);
  font-size: .82rem;
  letter-spacing: .04em;
  text-decoration: none;
  color: var(--ink-soft);
  padding-block: .3rem;
  border-bottom: 2px solid transparent;
}
.site-nav > a:not(.btn):hover { border-color: var(--accent); }
@media (max-width: 620px) {
  .site-nav > a:not(.btn) { display: none; }
}

/* ---------- buttons ---------- */
.btn {
  --btn-bg: var(--accent);
  --btn-fg: #fff;
  display: inline-flex; align-items: center; justify-content: center;
  gap: .5rem;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: .98rem;
  letter-spacing: .01em;
  text-decoration: none;
  padding: .85rem 1.4rem;
  background: var(--btn-bg);
  color: var(--btn-fg);
  border: 2px solid var(--line-strong);
  border-radius: var(--radius);
  box-shadow: var(--stamp);
  cursor: pointer;
  transition: transform .12s ease, box-shadow .12s ease, background .12s ease;
}
.btn:hover { transform: translate(2px, 2px); box-shadow: 2px 2px 0 var(--line-strong); }
.btn:active { transform: translate(4px, 4px); box-shadow: 0 0 0 var(--line-strong); }
.btn--sm { padding: .55rem .95rem; font-size: .85rem; box-shadow: 3px 3px 0 var(--line-strong); }
.btn--block { width: 100%; padding-block: 1rem; }
.btn[disabled] { opacity: .6; cursor: progress; }
.panel--dark .btn { --btn-fg: #fff; }

/* ---------- hero ---------- */
.hero { overflow: hidden; }
.hero__grid {
  display: grid;
  grid-template-columns: 1.35fr 1fr;
  gap: clamp(2rem, 6vw, 4.5rem);
  align-items: center;
}
@media (max-width: 900px) {
  .hero__grid { grid-template-columns: 1fr; }
}
.hero__title {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(2.6rem, 1.4rem + 6vw, 5rem);
  line-height: 0.98;
  letter-spacing: -0.035em;
  margin-bottom: 1.4rem;
}
.lede {
  font-size: clamp(1.05rem, 1rem + 0.4vw, 1.2rem);
  color: rgba(244,241,234,.72);
  max-width: 46ch;
}
.panel:not(.panel--dark) .lede { color: var(--ink-soft); }
.microcopy {
  margin-top: 1rem;
  font-family: var(--font-mono);
  font-size: .8rem;
  color: rgba(244,241,234,.5);
}
.panel:not(.panel--dark) .microcopy { color: var(--ink-mute); }

/* ---------- waitlist form ---------- */
.waitlist { margin-top: 2rem; max-width: 460px; }
.waitlist__body { display: grid; gap: .7rem; }
.field input, .field select,
.waitlist input[type="email"] {
  width: 100%;
  padding: .85rem .95rem;
  background: var(--paper);
  color: var(--ink);
  border: 2px solid var(--line-strong);
  border-radius: var(--radius);
  font-family: var(--font-mono);
  font-size: .92rem;
}
.field select { cursor: pointer; }
.field input::placeholder { color: var(--ink-mute); }
.field--split { display: grid; grid-template-columns: 1fr 1fr; gap: .7rem; }
@media (max-width: 460px) { .field--split { grid-template-columns: 1fr; } }

.waitlist__status {
  margin-top: .75rem;
  font-family: var(--font-mono);
  font-size: .82rem;
  min-height: 1.2em;
}
.waitlist__status[data-state="error"] { color: var(--accent); }
.panel:not(.panel--dark) .waitlist__status[data-state="ok"] { color: var(--steel); }

.waitlist__done {
  border: 2px solid var(--line-strong);
  border-radius: var(--radius);
  padding: 1.25rem;
  background: var(--accent);
  color: #fff;
  box-shadow: var(--stamp);
}
.waitlist__done-h {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 1.3rem;
  margin-bottom: .35rem;
}
.waitlist__done p { font-size: .95rem; }
.waitlist__done strong { font-family: var(--font-mono); }

.waitlist--compact { margin-top: 0; }

/* ---------- spec / call-log card ---------- */
.spec {
  background: var(--paper);
  color: var(--ink);
  border: 2px solid var(--line-strong);
  border-radius: var(--radius);
  box-shadow: var(--stamp-accent);
  font-family: var(--font-mono);
  font-size: .88rem;
}
.spec__head {
  display: flex; justify-content: space-between;
  padding: .8rem 1rem;
  border-bottom: 2px solid var(--line-strong);
  text-transform: uppercase;
  letter-spacing: .1em;
  font-size: .72rem;
  color: var(--ink-mute);
}
.spec__rows { padding: .6rem 1rem 1rem; }
.spec__rows > div {
  display: grid;
  grid-template-columns: 5.5rem 1fr;
  gap: .5rem;
  padding: .45rem 0;
  border-bottom: 1px dashed var(--line);
}
.spec__rows > div:last-child { border-bottom: 0; }
.spec__rows dt { color: var(--ink-mute); text-transform: uppercase; font-size: .72rem; letter-spacing: .08em; align-self: center; }
.spec__rows dd { font-weight: 500; }
.spec__ok { color: var(--accent-deep); }
.spec__foot {
  padding: .9rem 1rem;
  border-top: 2px solid var(--line-strong);
  background: var(--paper-2);
  font-size: .82rem;
  color: var(--ink-soft);
}

/* ---------- the math / calculator ---------- */
.section-math .section-title { max-width: 24ch; }
.calc {
  margin-top: 2.5rem;
  display: grid;
  gap: 1.75rem;
  max-width: 620px;
  border: 2px solid var(--line-strong);
  border-radius: var(--radius);
  padding: clamp(1.25rem, 4vw, 2rem);
  background: var(--paper-2);
  box-shadow: var(--stamp);
}
.calc__field { display: grid; grid-template-columns: 1fr auto; gap: .4rem 1rem; align-items: center; }
.calc__field label { font-family: var(--font-mono); font-size: .82rem; letter-spacing: .03em; }
.calc__field output {
  font-family: var(--font-mono);
  font-weight: 500;
  font-size: 1rem;
  padding: .1rem .55rem;
  border: 2px solid var(--line-strong);
  background: var(--paper);
  min-width: 4.5ch;
  text-align: center;
}
.calc__field input[type="range"] { grid-column: 1 / -1; width: 100%; }

/* range styling */
input[type="range"] {
  -webkit-appearance: none; appearance: none;
  height: 2px; background: var(--line-strong); cursor: pointer;
}
input[type="range"]::-webkit-slider-thumb {
  -webkit-appearance: none; appearance: none;
  width: 22px; height: 22px; border-radius: 0;
  background: var(--accent); border: 2px solid var(--line-strong);
  box-shadow: 2px 2px 0 var(--line-strong);
}
input[type="range"]::-moz-range-thumb {
  width: 20px; height: 20px; border-radius: 0;
  background: var(--accent); border: 2px solid var(--line-strong);
}

.calc__result {
  border-top: 2px dashed var(--line-strong);
  padding-top: 1.4rem;
  display: grid;
  gap: .35rem;
}
.calc__result-label {
  font-family: var(--font-mono);
  font-size: .78rem;
  text-transform: uppercase;
  letter-spacing: .1em;
  color: var(--ink-mute);
}
.calc__result-num {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(2.4rem, 1.5rem + 4vw, 3.6rem);
  line-height: 1;
  color: var(--accent-deep);
  letter-spacing: -0.02em;
  font-variant-numeric: tabular-nums;
}

/* ---------- blueprint texture ---------- */
.blueprint {
  background-image:
    linear-gradient(var(--line) 1px, transparent 1px),
    linear-gradient(90deg, var(--line) 1px, transparent 1px);
  background-size: 28px 28px;
  background-position: -1px -1px;
}

/* ---------- features ---------- */
.features {
  list-style: none; padding: 0;
  margin-top: 3rem;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0;
  border: 2px solid var(--line-strong);
  border-radius: var(--radius);
  background: var(--paper);
  box-shadow: var(--stamp);
  overflow: hidden;
}
@media (max-width: 860px) { .features { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 560px) { .features { grid-template-columns: 1fr; } }
.feature {
  padding: 1.75rem 1.5rem;
  border-right: 2px solid var(--line-strong);
  border-bottom: 2px solid var(--line-strong);
}
.feature:nth-child(3n) { border-right: 0; }
@media (max-width: 860px) {
  .feature { border-right: 2px solid var(--line-strong); }
  .feature:nth-child(3n) { border-right: 2px solid var(--line-strong); }
  .feature:nth-child(2n) { border-right: 0; }
}
@media (max-width: 560px) {
  .feature, .feature:nth-child(n) { border-right: 0; }
}
.feature:hover { background: var(--paper-2); }
.feature__idx {
  font-family: var(--font-mono);
  font-size: .8rem;
  color: var(--accent);
  letter-spacing: .1em;
}
.feature h3 {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.15rem;
  margin: .6rem 0 .4rem;
  letter-spacing: -0.01em;
}
.feature p { font-size: .92rem; color: var(--ink-soft); }

/* ---------- how / steps ---------- */
.steps {
  list-style: none; padding: 0;
  margin-top: 3rem;
  display: grid;
  gap: 0;
}
.step {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: clamp(1rem, 4vw, 2.5rem);
  padding: 1.75rem 0;
  border-top: 2px solid var(--line-strong);
  align-items: start;
}
.step:last-child { border-bottom: 2px solid var(--line-strong); }
.step__num {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(2rem, 1.4rem + 3vw, 3.25rem);
  color: var(--accent);
  line-height: 1;
}
.step h3 {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.35rem;
  margin-bottom: .35rem;
}
.step p { color: rgba(244,241,234,.66); max-width: 54ch; }

/* ---------- trades marquee ---------- */
.section-trades { padding-bottom: clamp(3rem, 6vw, 5rem); }
.marquee {
  margin-top: 2.5rem;
  display: flex;
  gap: 0;
  border-block: 2px solid var(--line-strong);
  overflow: hidden;
  -webkit-mask-image: linear-gradient(90deg, transparent, #000 6%, #000 94%, transparent);
          mask-image: linear-gradient(90deg, transparent, #000 6%, #000 94%, transparent);
}
.marquee__track {
  list-style: none; padding: 0; margin: 0;
  display: flex; flex-shrink: 0;
  gap: 0;
  animation: marquee 32s linear infinite;
}
.marquee:hover .marquee__track { animation-play-state: paused; }
.marquee__track li {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(1.4rem, 1rem + 2vw, 2.4rem);
  letter-spacing: -0.01em;
  padding: 1rem 1.75rem;
  white-space: nowrap;
  color: var(--ink-soft);
}
.marquee__track li::after { content: "·"; margin-left: 3.5rem; color: var(--accent); }
@keyframes marquee { to { transform: translateX(-100%); } }
@media (prefers-reduced-motion: reduce) {
  .marquee { -webkit-mask-image: none; mask-image: none; flex-wrap: wrap; }
  .marquee__track { animation: none; flex-wrap: wrap; }
  .marquee__track:nth-child(2) { display: none; }
}

/* ---------- founder ---------- */
.section-founder { background: var(--paper-2); }
.founder { max-width: 60ch; margin-top: 2rem; }
.founder p:first-child {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: clamp(1.3rem, 1rem + 1.8vw, 1.9rem);
  line-height: 1.32;
  letter-spacing: -0.015em;
}
.founder p + p { margin-top: 1.25rem; color: var(--ink-soft); }
.founder footer {
  margin-top: 1.5rem;
  font-family: var(--font-mono);
  font-size: .85rem;
  color: var(--ink-mute);
}

/* ---------- faq ---------- */
.faq {
  margin-top: 2.5rem;
  border-top: 2px solid var(--line-strong);
  max-width: 760px;
}
.faq details {
  border-bottom: 2px solid var(--line-strong);
}
.faq summary {
  cursor: pointer;
  list-style: none;
  padding: 1.15rem 2.5rem 1.15rem 0;
  position: relative;
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 1.1rem;
}
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after {
  content: "+";
  position: absolute; right: .25rem; top: 50%;
  transform: translateY(-50%);
  font-family: var(--font-mono);
  font-size: 1.4rem;
  color: var(--accent);
}
.faq details[open] summary::after { content: "\2013"; }
.faq details p {
  padding: 0 0 1.3rem;
  color: var(--ink-soft);
  max-width: 62ch;
}

/* ---------- final cta ---------- */
.section-cta__inner {
  display: grid;
  grid-template-columns: 1.1fr .9fr;
  gap: clamp(2rem, 6vw, 4rem);
  align-items: center;
}
@media (max-width: 820px) { .section-cta__inner { grid-template-columns: 1fr; } }

/* ---------- footer ---------- */
.site-foot {
  background: var(--ink);
  color: var(--paper);
  padding-block: 3rem;
  border-top: 2px solid var(--line-strong);
}
.site-foot__inner {
  display: grid;
  gap: .9rem;
}
.site-foot .brand { color: var(--paper); }
.site-foot__tag { font-family: var(--font-display); font-weight: 600; font-size: 1.05rem; }
.site-foot__links { display: flex; gap: 1.5rem; }
.site-foot__links a {
  font-family: var(--font-mono);
  font-size: .82rem;
  text-decoration: none;
  border-bottom: 2px solid transparent;
  padding-bottom: 2px;
}
.site-foot__links a:hover { border-color: var(--accent); }
.site-foot__legal {
  font-family: var(--font-mono);
  font-size: .76rem;
  color: rgba(244,241,234,.45);
  margin-top: .5rem;
}

/* ---------- page-load stagger for hero ----------
   Transform-only on purpose: if animations are paused (background tab)
   or disabled, the hero still renders fully — never stuck invisible. */
@media (prefers-reduced-motion: no-preference) {
  .hero__copy > * { animation: rise .55s both cubic-bezier(.2, .7, .2, 1); }
  .hero__copy > *:nth-child(1) { animation-delay: .03s; }
  .hero__copy > *:nth-child(2) { animation-delay: .09s; }
  .hero__copy > *:nth-child(3) { animation-delay: .15s; }
  .hero__copy > *:nth-child(4) { animation-delay: .21s; }
  .hero__copy > *:nth-child(5) { animation-delay: .27s; }
  @keyframes rise {
    from { transform: translateY(9px); }
    to   { transform: translateY(0); }
  }
}