/* ExoTorque AI marketing site — staging draft.
   Palette and type from soft-launch kit v2 (Ion Cyan / Graphite, Mona Sans + Inter). */

:root {
  --ink: var(--xt-graphite, #0E1116);
  --char: var(--xt-graphite, #0E1116);
  --panel: var(--xt-slate, #1C232D);
  --panel-2: #232B36;
  --line: #2A3340;
  --line-strong: #3A4554;
  --steel: var(--xt-steel, #8A96A3);
  --steel-dim: var(--xt-steel, #8A96A3);
  --paper: var(--xt-frost, #F4F7FA);
  --paper-dim: var(--xt-steel, #8A96A3);
  --copper: var(--xt-ion-cyan, #19E3FF);
  --copper-hot: #7AEEFF;
  --copper-deep: var(--xt-ion-deep, #0091AD);
  --copper-ink: var(--xt-graphite, #0E1116);
  --focus: var(--xt-ion-cyan, #19E3FF);
  --danger: #c46a4a;
  --max: 72rem;
  --gutter: clamp(1.15rem, 4vw, 2rem);
  --header-h: 5rem;
  --font-display: var(--xt-font-heading, "Mona Sans", "Inter", system-ui, sans-serif);
  --font-body: var(--xt-font-body, "Inter", system-ui, -apple-system, "Segoe UI", sans-serif);
}

*, *::before, *::after { 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: var(--char);
  color: var(--paper);
  font-family: var(--font-body);
  font-size: 17px;
  line-height: 1.55;
  letter-spacing: 0;
  min-height: 100vh;
}

img, svg { display: block; max-width: 100%; }
a { color: var(--copper-hot); text-underline-offset: 0.18em; }
a:hover { color: var(--paper); }
:focus-visible {
  outline: none;
  box-shadow: 0 0 0 2px var(--char), 0 0 0 4px var(--focus);
}

.skip {
  position: absolute;
  left: 0.75rem;
  top: -3rem;
  background: var(--copper);
  color: var(--copper-ink);
  padding: 0.5rem 0.8rem;
  font-weight: 600;
  border-radius: 10px;
  z-index: 200;
}
.skip:focus { top: 0.75rem; }

/* Staging ribbon */
.staging {
  background: #0A4A5A;
  color: var(--paper);
  font-size: 0.8rem;
  letter-spacing: 0.04em;
  text-align: center;
  padding: 0.4rem var(--gutter);
  border-bottom: 1px solid #0091AD;
}
.staging strong { font-weight: 500; color: var(--paper); }

/* Header */
.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: color-mix(in srgb, var(--char) 88%, transparent);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--line);
}
.header-inner {
  max-width: var(--max);
  margin: 0 auto;
  padding: 0 var(--gutter);
  min-height: var(--header-h);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}

.xt-logo {
  display: inline-flex;
  align-items: center;
  flex-shrink: 0;
  text-decoration: none;
  line-height: 0;
}
.xt-logo img {
  display: block;
  width: 240px;
  height: auto;
}
@media (max-width: 480px) {
  .xt-logo img { width: 140px; }
}
.xt-logo-footer img {
  width: 160px;
  height: auto;
}

.nav-toggle {
  position: absolute;
  opacity: 0;
  pointer-events: none;
}
.nav-btn {
  display: none;
  font-family: var(--font-body);
  font-weight: 600;
  font-size: 0.95rem;
  letter-spacing: 0.02em;
  color: var(--paper);
  background: transparent;
  border: 1px solid var(--line-strong);
  padding: 0.4rem 0.7rem;
  cursor: pointer;
  border-radius: 10px;
}

nav ul {
  display: flex;
  align-items: center;
  gap: 0.15rem 1.15rem;
  list-style: none;
  margin: 0;
  padding: 0;
}
nav a {
  color: var(--paper-dim);
  text-decoration: none;
  font-family: var(--font-body);
  font-weight: 500;
  font-size: 0.95rem;
  letter-spacing: 0;
}
nav a:hover { color: var(--paper); }
nav a.nav-cta {
  color: var(--copper-ink);
  background: var(--copper);
  padding: 0.5rem 0.95rem;
  border: 1px solid var(--copper);
  border-radius: 10px;
  font-weight: 600;
}
nav a.nav-cta:hover {
  background: var(--copper-hot);
  color: var(--copper-ink);
}

@media (max-width: 860px) {
  .nav-btn { display: inline-block; }
  nav {
    position: absolute;
    left: 0;
    right: 0;
    top: 100%;
    background: var(--ink);
    border-bottom: 1px solid var(--line);
    display: none;
    padding: 0.5rem var(--gutter) 1rem;
  }
  nav ul {
    flex-direction: column;
    align-items: flex-start;
    gap: 0.85rem;
  }
  #nav-toggle:checked ~ nav { display: block; }
  #nav-toggle:checked ~ .nav-btn { border-color: var(--copper); color: var(--copper-hot); }
}

/* Layout */
.wrap {
  max-width: var(--max);
  margin: 0 auto;
  padding: 0 var(--gutter);
}
.section {
  padding: clamp(3.25rem, 8vw, 6rem) 0;
  border-top: 1px solid var(--line);
}
.eyebrow {
  font-family: var(--font-body);
  font-weight: 600;
  font-size: 0.8rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--copper);
  margin: 0 0 0.75rem;
}
.section h2 {
  font-family: var(--font-display);
  font-stretch: 125%;
  font-weight: 600;
  font-size: clamp(1.85rem, 4vw, 2.5rem);
  line-height: 1.1;
  letter-spacing: 0.01em;
  margin: 0 0 1rem;
  color: var(--paper);
}
.lede {
  max-width: 40rem;
  color: var(--paper-dim);
  margin: 0 0 2rem;
  font-size: 1.08rem;
}

/* Hero */
.hero {
  position: relative;
  overflow: hidden;
  padding: clamp(3.5rem, 10vw, 7.5rem) 0 clamp(4rem, 10vw, 8rem);
}
.hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse 80% 60% at 80% 10%, rgba(25, 227, 255, 0.10), transparent 55%),
    linear-gradient(180deg, rgba(14, 17, 22, 0.15), transparent 40%);
  pointer-events: none;
}
.hero-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2.5rem;
  position: relative;
}
@media (min-width: 900px) {
  .hero-grid { grid-template-columns: minmax(0, 1.3fr) minmax(0, 0.8fr); align-items: end; }
}
.hero h1 {
  font-family: var(--font-display);
  font-stretch: 125%;
  font-weight: 600;
  font-size: clamp(2.6rem, 6.5vw, 3.5rem);
  line-height: 1.05;
  letter-spacing: 0.01em;
  margin: 0 0 1.25rem;
}
.hero h1 .accent { color: var(--copper); }
.hero-sub {
  max-width: 36rem;
  font-size: 1.15rem;
  color: var(--paper-dim);
  margin: 0 0 1.75rem;
}
.hero-actions { display: flex; flex-wrap: wrap; gap: 0.75rem; }

.hero-aside {
  border: 1px solid var(--line);
  background: color-mix(in srgb, var(--panel) 80%, transparent);
  padding: 1.4rem 1.5rem 1.5rem;
}
.hero-aside p {
  margin: 0;
  color: var(--paper-dim);
  font-size: 0.98rem;
}
.hero-aside .kicker {
  font-family: var(--font-body);
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--copper);
  font-size: 0.8rem;
  margin-bottom: 0.5rem;
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.45rem;
  font-family: var(--font-body);
  font-weight: 600;
  font-size: 16px;
  letter-spacing: 0;
  text-decoration: none;
  padding: 0.85rem 1.25rem;
  border: 1px solid transparent;
  border-radius: 10px;
  cursor: pointer;
  line-height: 1;
}
.btn-primary {
  background: var(--copper);
  color: var(--copper-ink);
  border-color: var(--copper);
}
.btn-primary:hover { background: var(--copper-hot); color: var(--copper-ink); }
.btn-ghost {
  background: transparent;
  color: var(--paper);
  border-color: var(--line-strong);
}
.btn-ghost:hover { border-color: var(--copper); color: var(--paper); }
.btn[aria-disabled="true"], .btn:disabled {
  opacity: 0.55;
  cursor: not-allowed;
  pointer-events: none;
}

/* Cards */
.cards {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1rem;
}
@media (min-width: 740px) {
  .cards-3 { grid-template-columns: repeat(3, 1fr); }
  .cards-2 { grid-template-columns: repeat(2, 1fr); }
}
@media (min-width: 980px) {
  .cards-4 { grid-template-columns: repeat(4, 1fr); }
}
.cards { align-items: stretch; }
.card {
  background: var(--panel);
  border: 1px solid var(--line);
  padding: 1.4rem 1.35rem 1.5rem;
  display: flex;
  flex-direction: column;
  gap: 0.65rem;
  min-width: 0;
  height: 100%;
}
.card h3 {
  font-family: var(--font-display);
  font-stretch: 125%;
  font-weight: 600;
  font-size: 1.5rem;
  letter-spacing: 0;
  margin: 0;
  line-height: 1.2;
}
.card p { margin: 0; color: var(--paper-dim); }
.card-num {
  font-family: var(--font-body);
  font-weight: 600;
  color: var(--copper);
  letter-spacing: 0.12em;
  font-size: 0.8rem;
}

/* How it works */
.steps {
  display: grid;
  grid-template-columns: 1fr;
  gap: 0;
  border-top: 1px solid var(--line);
}
@media (min-width: 800px) {
  .steps { grid-template-columns: repeat(5, 1fr); }
}
.step {
  padding: 1.4rem 1.15rem 1.5rem 0;
  border-bottom: 1px solid var(--line);
}
@media (min-width: 800px) {
  .step {
    border-bottom: 0;
    border-right: 1px solid var(--line);
    padding: 1.5rem 1.15rem 0 0;
  }
  .step:last-child { border-right: 0; padding-right: 0; }
}
.step h3 {
  font-family: var(--font-display);
  font-stretch: 125%;
  font-weight: 600;
  letter-spacing: 0;
  font-size: 1.35rem;
  margin: 0.2rem 0 0.45rem;
}
.step p { margin: 0; color: var(--paper-dim); font-size: 0.98rem; }

/* Pricing */
.price-card { position: relative; }
.price-card.featured {
  border-color: var(--copper);
  background: linear-gradient(180deg, rgba(25, 227, 255, 0.10) 0%, var(--panel) 48%);
}
.badge {
  align-self: flex-start;
  font-family: var(--font-body);
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  font-size: 0.7rem;
  color: var(--copper-ink);
  background: var(--copper);
  padding: 0.2rem 0.45rem;
  border-radius: 6px;
}
.price {
  margin: 0.2rem 0 0.15rem;
  font-family: var(--font-display);
  font-stretch: 125%;
  font-weight: 600;
  font-size: clamp(1.6rem, 3vw, 2rem);
  letter-spacing: 0;
  line-height: 1.15;
}
.price small {
  display: block;
  font-size: 0.95rem;
  font-weight: 500;
  letter-spacing: 0;
  color: var(--paper-dim);
  margin-top: 0.35rem;
  font-family: var(--font-body);
  font-stretch: 100%;
  text-transform: none;
}
.starting { color: var(--steel); font-size: 0.8rem; letter-spacing: 0.08em; text-transform: uppercase; font-family: var(--font-body); font-weight: 600; }
.price-card ul {
  margin: 0.4rem 0 0;
  padding: 0 0 0 1.1rem;
  color: var(--paper-dim);
  font-size: 0.95rem;
}
.price-card li { margin: 0.3rem 0; }
.price-note {
  margin: 1.5rem 0 0;
  color: var(--steel);
  font-size: 0.95rem;
  max-width: 46rem;
}

/* Industries */
.chips {
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem;
  margin: 0;
  padding: 0;
  list-style: none;
}
.chips li {
  border: 1px solid var(--line-strong);
  padding: 0.55rem 0.9rem;
  font-family: var(--font-body);
  font-weight: 500;
  letter-spacing: 0;
  font-size: 0.95rem;
  color: var(--paper);
  border-radius: 10px;
}

/* See it work */
.example {
  display: grid;
  gap: 1.25rem;
  border: 1px dashed var(--line-strong);
  background: var(--panel);
  padding: clamp(1.25rem, 3vw, 2rem);
}
@media (min-width: 800px) {
  .example { grid-template-columns: 1.2fr 0.8fr; align-items: center; }
}
.coming-soon {
  justify-self: start;
  font-family: var(--font-body);
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--copper);
  border: 1px solid var(--copper-deep);
  padding: 0.85rem 1rem;
  border-radius: 10px;
}
.coming-soon-inline {
  display: inline-block;
  margin-left: 0.35rem;
  font-family: var(--font-body);
  font-stretch: 100%;
  font-weight: 600;
  font-size: 0.65rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--copper-ink);
  background: var(--copper);
  padding: 0.15rem 0.4rem;
  border-radius: 6px;
  vertical-align: middle;
  line-height: 1.2;
}

/* FAQ */
.faq details {
  border-top: 1px solid var(--line);
  padding: 0.9rem 0;
}
.faq details:last-child { border-bottom: 1px solid var(--line); }
.faq summary {
  cursor: pointer;
  font-family: var(--font-display);
  font-stretch: 125%;
  font-weight: 600;
  font-size: 1.15rem;
  letter-spacing: 0;
  list-style: none;
  color: var(--paper);
}
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after {
  content: "+";
  float: right;
  color: var(--copper);
  font-weight: 500;
}
.faq details[open] summary::after { content: "–"; }
.faq details p {
  margin: 0.7rem 0 0.3rem;
  color: var(--paper-dim);
  max-width: 44rem;
}

/* Contact */
.contact-grid {
  display: grid;
  gap: 2rem;
}
@media (min-width: 800px) {
  .contact-grid { grid-template-columns: 0.9fr 1.1fr; }
}
.contact-meta p { color: var(--paper-dim); }
.contact-meta address {
  font-style: normal;
  color: var(--paper);
  margin: 0.8rem 0;
}
form {
  display: grid;
  gap: 0.85rem;
  background: var(--panel);
  border: 1px solid var(--line);
  padding: 1.25rem;
}
label {
  display: grid;
  gap: 0.3rem;
  font-family: var(--font-body);
  font-weight: 600;
  letter-spacing: 0;
  font-size: 0.9rem;
  color: var(--paper-dim);
}
input, select, textarea {
  font: inherit;
  letter-spacing: normal;
  text-transform: none;
  color: var(--paper);
  background: var(--ink);
  border: 1px solid var(--line-strong);
  border-radius: 10px;
  padding: 0.65rem 0.7rem;
  width: 100%;
}
textarea { min-height: 8rem; resize: vertical; }
.form-note {
  margin: 0;
  color: var(--steel);
  font-size: 0.92rem;
}
.form-actions { display: flex; flex-wrap: wrap; gap: 0.7rem; align-items: center; }

/* Legal pages */
.legal { padding: clamp(2.5rem, 6vw, 4rem) 0 5rem; }
.legal h1 {
  font-family: var(--font-display);
  font-stretch: 125%;
  font-weight: 600;
  letter-spacing: 0.01em;
  font-size: clamp(2.1rem, 5vw, 3.2rem);
  line-height: 1.05;
  margin: 0 0 0.6rem;
}
.draft-flag {
  display: inline-block;
  font-family: var(--font-body);
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--copper-ink);
  background: var(--copper);
  padding: 0.2rem 0.5rem;
  margin-bottom: 1rem;
  border-radius: 6px;
}
.legal h2 {
  font-family: var(--font-display);
  font-stretch: 125%;
  font-weight: 600;
  letter-spacing: 0;
  font-size: 1.4rem;
  margin: 2rem 0 0.5rem;
}
.legal p, .legal li { color: var(--paper-dim); max-width: 44rem; }

/* Footer */
.site-footer {
  border-top: 1px solid var(--line);
  padding: 2.25rem 0 2.75rem;
  background: var(--ink);
  color: var(--steel);
  font-size: 0.95rem;
}
.footer-grid {
  display: grid;
  gap: 1.5rem;
}
@media (min-width: 700px) {
  .footer-grid { grid-template-columns: 1.4fr 1fr 1fr; }
}
.site-footer .xt-logo { margin-bottom: 0.6rem; }
.site-footer a { color: var(--paper-dim); text-decoration: none; }
.site-footer a:hover { color: var(--copper-hot); }
.footer-links { list-style: none; margin: 0; padding: 0; }
.footer-links li { margin: 0.3rem 0; }
.footer-label {
  font-family: var(--font-body);
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--paper);
  margin: 0 0 0.5rem;
  font-size: 0.8rem;
}

/* 404 */
.page-404 { padding: clamp(4rem, 12vw, 8rem) 0; }
.page-404 h1 {
  font-family: var(--font-display);
  font-stretch: 125%;
  font-weight: 600;
  font-size: clamp(2.4rem, 6vw, 3.5rem);
  line-height: 1.05;
  letter-spacing: 0.01em;
  margin: 0 0 1rem;
}

.addon-label {
  color: var(--copper);
  font-family: var(--font-body);
  font-stretch: 100%;
  font-weight: 600;
  letter-spacing: 0.06em;
  font-size: 0.65em;
  text-transform: uppercase;
}