/* ==========================================================================
   Naxis Technologies — marketing site
   Design language shared with the Naxis Assistant product: warm paper
   background, ink text, calm teal accent. Display serif (Fraunces) carries
   the editorial, trustworthy voice; Inter does the working text.
   ========================================================================== */

:root {
  --bg:          #f4f4f1;
  --panel:       #ffffff;
  --ink:         #1c1c1a;
  --ink-soft:    #3d3d38;
  --muted:       #6d6d66;
  --faint:       #9a9a92;
  --line:        #e4e4dd;
  --line-soft:   #eeeee8;
  --accent:      #0f766e;
  --accent-deep: #0b5d57;
  --accent-ink:  #ffffff;
  --accent-soft: #e4f1ef;
  --dark:        #12312d;   /* deep teal-ink band */
  --dark-2:      #0d2724;
  --dark-line:   #24473f;
  --dark-text:   #d7e5e0;
  --dark-faint:  #9fbcb4;
  --danger:      #b3352c;
  --danger-soft: #f9e9e7;
  --ok:          #22633c;
  --ok-soft:     #e6f1ea;

  --radius:      10px;
  --radius-lg:   16px;
  --shadow:      0 1px 2px rgba(28,28,26,.05), 0 6px 24px rgba(28,28,26,.06);
  --shadow-lg:   0 4px 12px rgba(28,28,26,.08), 0 24px 64px rgba(28,28,26,.12);

  --font-body:   "Inter", "Segoe UI", system-ui, -apple-system, sans-serif;
  --font-display:"Fraunces", Georgia, "Times New Roman", serif;
  --font-mono:   Consolas, "Cascadia Mono", ui-monospace, monospace;

  --container:   1120px;
}

/* --- base ---------------------------------------------------------------- */

*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font: 400 16px/1.65 var(--font-body);
  background: var(--bg);
  color: var(--ink);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}
h1, h2, h3, h4 { margin: 0; font-weight: 600; letter-spacing: -.015em; line-height: 1.15; }
p { margin: 0 0 1em; }
a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }
img, svg { max-width: 100%; height: auto; }
code { font-family: var(--font-mono); font-size: .85em; }

.sr-only {
  position: absolute; width: 1px; height: 1px; margin: -1px;
  clip-path: inset(50%); overflow: hidden; white-space: nowrap;
}
.skip-link {
  position: absolute; left: 12px; top: -48px; z-index: 100;
  background: var(--ink); color: #fff; padding: 8px 14px;
  border-radius: 0 0 8px 8px; transition: top .15s;
}
.skip-link:focus { top: 0; }
:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; border-radius: 2px; }

.container { max-width: var(--container); margin: 0 auto; padding: 0 24px; }

/* --- type helpers --------------------------------------------------------- */

.display {
  font-family: var(--font-display);
  font-weight: 600;
  letter-spacing: -.02em;
}
.eyebrow {
  display: inline-block;
  font-size: 12.5px; font-weight: 600; letter-spacing: .12em;
  text-transform: uppercase; color: var(--accent);
  margin-bottom: 14px;
}
.lede { font-size: 19px; line-height: 1.6; color: var(--ink-soft); max-width: 46em; }
.muted { color: var(--muted); }
.small { font-size: 13.5px; }

/* --- buttons --------------------------------------------------------------- */

.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  padding: 11px 22px; border-radius: 999px;
  border: 1px solid var(--line); background: var(--panel); color: var(--ink);
  font: 500 15px/1 var(--font-body); cursor: pointer; white-space: nowrap;
  transition: border-color .15s, background .15s, color .15s, transform .15s, box-shadow .15s;
}
.btn:hover { border-color: var(--accent); color: var(--accent); text-decoration: none; }
.btn-primary { background: var(--accent); border-color: var(--accent); color: var(--accent-ink); }
.btn-primary:hover {
  background: var(--accent-deep); border-color: var(--accent-deep);
  color: var(--accent-ink); transform: translateY(-1px); box-shadow: var(--shadow);
}
.btn-lg { padding: 14px 28px; font-size: 16px; }
.btn-ghost-dark { background: transparent; border-color: var(--dark-line); color: var(--dark-text); }
.btn-ghost-dark:hover { border-color: var(--dark-text); color: #fff; }

/* --- header ---------------------------------------------------------------- */

.site-header {
  position: sticky; top: 0; z-index: 50;
  background: rgba(244,244,241,.88);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--line);
}
.header-row { display: flex; align-items: center; justify-content: space-between; height: 68px; }

.brand { display: inline-flex; align-items: baseline; color: var(--ink); text-decoration: none; }
.brand:hover { text-decoration: none; }
.brand-word {
  font-family: var(--font-display); font-weight: 600; font-size: 25px;
  letter-spacing: -.02em;
}
.brand-cite {
  font-family: var(--font-mono); font-size: 11px; font-weight: 600;
  color: var(--accent); margin-left: 3px;
}

.site-nav { display: flex; align-items: center; gap: 6px; }
.nav-link {
  padding: 8px 14px; border-radius: 999px; color: var(--ink-soft);
  font-size: 15px; font-weight: 500;
}
.nav-link:hover { color: var(--ink); background: var(--line-soft); text-decoration: none; }
.nav-link.is-active { color: var(--accent); background: var(--accent-soft); }
.nav-cta { margin-left: 10px; padding: 9px 18px; font-size: 14px; }

.nav-toggle {
  display: none; border: 1px solid var(--line); background: var(--panel);
  border-radius: 8px; width: 42px; height: 38px; cursor: pointer;
  align-items: center; justify-content: center; position: relative;
}
.nav-toggle-bar, .nav-toggle-bar::before, .nav-toggle-bar::after {
  content: ""; display: block; width: 18px; height: 2px;
  background: var(--ink); border-radius: 2px; position: relative;
  transition: transform .2s, opacity .2s;
}
.nav-toggle-bar::before { position: absolute; top: -6px; }
.nav-toggle-bar::after  { position: absolute; top: 6px; }
.nav-toggle[aria-expanded="true"] .nav-toggle-bar { background: transparent; }
.nav-toggle[aria-expanded="true"] .nav-toggle-bar::before { transform: translateY(6px) rotate(45deg); }
.nav-toggle[aria-expanded="true"] .nav-toggle-bar::after  { transform: translateY(-6px) rotate(-45deg); }

/* --- sections ---------------------------------------------------------------- */

.section { padding: 96px 0; }
.section-tight { padding: 72px 0; }
.section-head { max-width: 640px; margin-bottom: 56px; }
.section-head h2 { font-size: clamp(28px, 4vw, 40px); margin-bottom: 16px; }
.section-head.centered { margin-left: auto; margin-right: auto; text-align: center; }
.hairline { border: 0; border-top: 1px solid var(--line); margin: 0; }

/* --- hero ------------------------------------------------------------------- */

.hero { padding: 88px 0 72px; overflow: hidden; }
.hero-grid {
  display: grid; grid-template-columns: minmax(0, 1.05fr) minmax(0, .95fr);
  gap: 64px; align-items: center;
}
.hero h1 { font-size: clamp(38px, 5.4vw, 58px); margin-bottom: 22px; }
.hero .lede { margin-bottom: 32px; }
.hero-actions { display: flex; gap: 14px; flex-wrap: wrap; margin-bottom: 28px; }
.hero-note { font-size: 13.5px; color: var(--muted); display: flex; gap: 18px; flex-wrap: wrap; }
.hero-note span { display: inline-flex; align-items: center; gap: 7px; }
.tick {
  width: 15px; height: 15px; flex: none; border-radius: 50%;
  background: var(--accent-soft); color: var(--accent);
  display: inline-grid; place-items: center; font-size: 9px; font-weight: 700;
}

/* --- chat mockup -------------------------------------------------------------- */

.chat-mock {
  background: var(--panel); border: 1px solid var(--line);
  border-radius: var(--radius-lg); box-shadow: var(--shadow-lg);
  overflow: hidden; font-size: 14px;
}
.chat-mock-bar {
  display: flex; align-items: center; gap: 10px;
  padding: 12px 16px; border-bottom: 1px solid var(--line-soft);
  color: var(--muted); font-size: 12.5px; font-weight: 500;
}
.chat-dot { width: 8px; height: 8px; border-radius: 50%; background: var(--line); }
.chat-mock-body { padding: 20px; display: grid; gap: 16px; }
.msg-user {
  justify-self: end; max-width: 85%;
  background: var(--accent); color: var(--accent-ink);
  padding: 10px 16px; border-radius: 16px 16px 4px 16px;
}
.msg-bot {
  justify-self: start; max-width: 95%;
  background: var(--bg); border: 1px solid var(--line-soft);
  padding: 14px 16px; border-radius: 16px 16px 16px 4px;
  color: var(--ink-soft);
}
.msg-bot p { margin: 0 0 10px; }
.msg-bot p:last-child { margin: 0; }
.cite-ref {
  font-family: var(--font-mono); font-size: 10.5px; font-weight: 600;
  color: var(--accent); vertical-align: super; line-height: 0;
}
.cite-chip {
  display: inline-flex; align-items: center; gap: 8px;
  background: var(--panel); border: 1px solid var(--line);
  border-radius: 8px; padding: 7px 11px; font-size: 12.5px; color: var(--ink-soft);
}
.cite-chip .cite-n {
  font-family: var(--font-mono); font-size: 10.5px; font-weight: 700;
  color: var(--accent); background: var(--accent-soft);
  border-radius: 5px; padding: 2px 6px;
}
.cite-chip .cite-doc { font-weight: 600; }
.cite-chip .cite-loc { color: var(--faint); }
.msg-refusal {
  justify-self: start; max-width: 95%;
  background: var(--bg); border: 1px dashed var(--line);
  padding: 12px 16px; border-radius: 16px 16px 16px 4px; color: var(--muted);
}
.chat-disclosure {
  padding: 10px 20px 14px; font-size: 11.5px; color: var(--faint);
  border-top: 1px solid var(--line-soft); text-align: center;
}

/* --- pillar cards ---------------------------------------------------------------- */

.card-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.card {
  background: var(--panel); border: 1px solid var(--line);
  border-radius: var(--radius-lg); padding: 30px 28px;
  box-shadow: var(--shadow);
  transition: transform .18s, box-shadow .18s, border-color .18s;
}
.card:hover { transform: translateY(-3px); box-shadow: var(--shadow-lg); border-color: #d8d8cf; }
.card h3 { font-size: 20px; margin: 18px 0 10px; }
.card p { margin: 0; color: var(--muted); font-size: 15px; }
.card-icon {
  width: 44px; height: 44px; border-radius: 12px;
  background: var(--accent-soft); color: var(--accent);
  display: grid; place-items: center;
}
.card-icon svg { width: 22px; height: 22px; }

/* --- how it works steps ------------------------------------------------------------ */

.steps { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; counter-reset: step; }
.step {
  position: relative; background: var(--panel); border: 1px solid var(--line);
  border-radius: var(--radius-lg); padding: 30px 28px 26px; box-shadow: var(--shadow);
}
.step::before {
  counter-increment: step; content: counter(step, decimal-leading-zero);
  font-family: var(--font-mono); font-size: 12px; font-weight: 700;
  letter-spacing: .08em; color: var(--accent);
  display: inline-block; margin-bottom: 14px;
  background: var(--accent-soft); border-radius: 6px; padding: 4px 8px;
}
.step h3 { font-size: 19px; margin-bottom: 10px; }
.step p { margin: 0; color: var(--muted); font-size: 15px; }

/* --- connectors ---------------------------------------------------------------------- */

.connector-grid {
  display: grid; grid-template-columns: repeat(6, 1fr); gap: 14px;
}
.connector {
  background: var(--panel); border: 1px solid var(--line); border-radius: var(--radius);
  padding: 18px 12px 15px; text-align: center;
  display: grid; justify-items: center; gap: 9px;
  font-size: 13px; font-weight: 500; color: var(--ink-soft);
  transition: border-color .15s, transform .15s;
}
.connector:hover { border-color: var(--accent); transform: translateY(-2px); }
.connector svg { width: 26px; height: 26px; color: var(--accent); }
.connector small { display: block; font-weight: 400; color: var(--faint); font-size: 11.5px; }

/* --- permission demo (same question, different clearance) ----------------------------- */

.perm-demo { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; }
.perm-panel {
  background: var(--panel); border: 1px solid var(--line);
  border-radius: var(--radius-lg); box-shadow: var(--shadow); overflow: hidden;
}
.perm-head {
  display: flex; align-items: center; gap: 12px;
  padding: 14px 18px; border-bottom: 1px solid var(--line-soft);
}
.avatar {
  width: 34px; height: 34px; border-radius: 50%; flex: none;
  display: grid; place-items: center; font-size: 13px; font-weight: 600;
  background: var(--accent-soft); color: var(--accent-deep);
}
.perm-head .who { line-height: 1.3; }
.perm-head .who strong { display: block; font-size: 14px; }
.group-tag {
  display: inline-block; font-family: var(--font-mono); font-size: 10.5px;
  color: var(--muted); background: var(--line-soft);
  border-radius: 5px; padding: 1px 7px;
}
.perm-body { padding: 18px; display: grid; gap: 12px; font-size: 13.5px; }
.perm-q { color: var(--muted); font-style: italic; }
.perm-a {
  background: var(--bg); border: 1px solid var(--line-soft);
  border-radius: 10px; padding: 12px 14px; color: var(--ink-soft);
}
.perm-a.is-refusal { border-style: dashed; color: var(--muted); }
.perm-note { text-align: center; color: var(--muted); font-size: 14px; margin-top: 22px; }

/* --- dark trust band --------------------------------------------------------------------- */

.band-dark {
  background: linear-gradient(180deg, var(--dark) 0%, var(--dark-2) 100%);
  color: var(--dark-text); padding: 96px 0;
}
.band-dark .eyebrow { color: #6ec9bd; }
.band-dark h2 { color: #fff; }
.band-dark .lede { color: var(--dark-faint); }
.trust-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 18px; margin-top: 52px; }
.trust-item {
  border: 1px solid var(--dark-line); border-radius: var(--radius-lg);
  padding: 24px 22px; background: rgba(255,255,255,.02);
}
.trust-item h3 { color: #fff; font-size: 16.5px; margin-bottom: 8px; }
.trust-item p { margin: 0; font-size: 14px; color: var(--dark-faint); }
.trust-item .ref {
  display: inline-block; font-family: var(--font-mono); font-size: 10.5px;
  color: #6ec9bd; border: 1px solid var(--dark-line); border-radius: 5px;
  padding: 2px 7px; margin-bottom: 12px;
}

/* --- deployment cards ---------------------------------------------------------------------- */

.deploy-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 24px; }
.deploy-card {
  background: var(--panel); border: 1px solid var(--line);
  border-radius: var(--radius-lg); padding: 36px 34px; box-shadow: var(--shadow);
  display: flex; flex-direction: column;
}
.deploy-card.is-featured { border-color: var(--accent); box-shadow: var(--shadow-lg); }
.deploy-flag {
  align-self: flex-start; font-size: 11.5px; font-weight: 600; letter-spacing: .09em;
  text-transform: uppercase; color: var(--accent);
  background: var(--accent-soft); border-radius: 999px; padding: 5px 12px; margin-bottom: 18px;
}
.deploy-card h3 { font-size: 26px; margin-bottom: 6px; }
.deploy-sub { color: var(--muted); margin-bottom: 22px; }
.feature-list { list-style: none; margin: 0 0 28px; padding: 0; display: grid; gap: 11px; }
.feature-list li { display: flex; gap: 11px; font-size: 15px; color: var(--ink-soft); }
.feature-list .tick { margin-top: 4px; }
.deploy-card .btn { margin-top: auto; align-self: flex-start; }

/* --- FAQ -------------------------------------------------------------------------------------- */

.faq { max-width: 760px; margin: 0 auto; }
.faq details {
  background: var(--panel); border: 1px solid var(--line);
  border-radius: var(--radius); margin-bottom: 10px; overflow: hidden;
}
.faq summary {
  list-style: none; cursor: pointer; padding: 18px 22px;
  font-weight: 600; font-size: 16px; display: flex; justify-content: space-between; gap: 16px;
}
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after {
  content: "+"; color: var(--accent); font-size: 20px; font-weight: 400;
  line-height: 1; transition: transform .18s; flex: none;
}
.faq details[open] summary::after { transform: rotate(45deg); }
.faq .faq-a { padding: 0 22px 20px; color: var(--muted); font-size: 15px; }
.faq .faq-a p:last-child { margin-bottom: 0; }

/* --- CTA band ----------------------------------------------------------------------------------- */

.cta-band { padding: 40px 0 110px; }
.cta-inner {
  background: linear-gradient(135deg, var(--dark) 0%, var(--dark-2) 70%);
  border-radius: 24px; padding: 72px 48px; text-align: center; color: var(--dark-text);
}
.cta-inner h2 { color: #fff; font-size: clamp(28px, 4vw, 40px); margin-bottom: 14px; }
.cta-inner p { color: var(--dark-faint); max-width: 42em; margin: 0 auto 32px; font-size: 17px; }
.cta-actions { display: flex; justify-content: center; gap: 14px; flex-wrap: wrap; }

/* --- footer -------------------------------------------------------------------------------------- */

.site-footer { border-top: 1px solid var(--line); padding: 64px 0 40px; background: var(--bg); }
.footer-grid {
  display: grid; grid-template-columns: 1.4fr 1fr 1fr 1fr; gap: 32px; margin-bottom: 48px;
}
.brand-footer .brand-word { font-size: 22px; }
.footer-tag { color: var(--muted); font-size: 13.5px; margin-top: 10px; }
.footer-tag sup { font-family: var(--font-mono); font-size: 10px; color: var(--accent); }
.footer-col { display: grid; gap: 9px; align-content: start; }
.footer-col h3 {
  font-size: 12px; font-weight: 600; letter-spacing: .1em; text-transform: uppercase;
  color: var(--faint); margin-bottom: 6px;
}
.footer-col a { color: var(--ink-soft); font-size: 14.5px; }
.footer-col a:hover { color: var(--accent); }
.footer-legal {
  border-top: 1px solid var(--line); padding-top: 24px;
  display: flex; justify-content: space-between; gap: 16px; flex-wrap: wrap;
  color: var(--faint); font-size: 13px;
}
.footer-legal p { margin: 0; }

/* --- subpage hero ----------------------------------------------------------------------------------- */

.page-hero { padding: 80px 0 56px; border-bottom: 1px solid var(--line); }
.page-hero h1 { font-size: clamp(34px, 4.6vw, 50px); margin-bottom: 18px; max-width: 15em; }
.page-hero .lede { margin: 0; }

/* --- prose (security / privacy) ----------------------------------------------------------------------- */

.prose { max-width: 720px; }
.prose h2 { font-size: 27px; margin: 56px 0 16px; }
.prose h2:first-child { margin-top: 0; }
.prose h3 { font-size: 19px; margin: 32px 0 10px; }
.prose p, .prose li { color: var(--ink-soft); }
.prose ul { padding-left: 22px; margin: 0 0 1em; }
.prose li { margin-bottom: 6px; }
.prose .doc-note {
  background: var(--accent-soft); border: 1px solid #cfe5e1; border-radius: var(--radius);
  padding: 14px 18px; font-size: 14.5px; color: var(--accent-deep); margin: 0 0 1em;
}

/* --- tables ------------------------------------------------------------------------------------------- */

.table-wrap { overflow-x: auto; margin: 0 0 1.5em; border: 1px solid var(--line); border-radius: var(--radius); background: var(--panel); }
table.data { width: 100%; border-collapse: collapse; font-size: 14.5px; min-width: 540px; }
table.data th, table.data td { text-align: left; padding: 12px 16px; border-bottom: 1px solid var(--line-soft); vertical-align: top; }
table.data th {
  font-size: 12px; font-weight: 600; letter-spacing: .07em; text-transform: uppercase;
  color: var(--muted); background: var(--bg);
}
table.data tr:last-child td { border-bottom: 0; }
table.data td { color: var(--ink-soft); }

/* --- feature rows (product page) ------------------------------------------------------------------------ */

.feature-row {
  display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
  gap: 64px; align-items: center; padding: 72px 0;
}
.feature-row + .feature-row { border-top: 1px solid var(--line); }
.feature-row h2 { font-size: clamp(26px, 3.4vw, 34px); margin-bottom: 16px; }
.feature-row .lede { font-size: 17px; }
.feature-row.flip .feature-copy { order: 2; }
.feature-points { list-style: none; margin: 22px 0 0; padding: 0; display: grid; gap: 13px; }
.feature-points li { display: flex; gap: 12px; color: var(--ink-soft); font-size: 15.5px; }
.feature-points .tick { margin-top: 5px; }
.feature-points strong { font-weight: 600; }

/* small UI vignettes used on the product page */
.vignette {
  background: var(--panel); border: 1px solid var(--line);
  border-radius: var(--radius-lg); box-shadow: var(--shadow-lg); overflow: hidden;
  font-size: 13.5px;
}
.vignette-bar {
  padding: 11px 16px; border-bottom: 1px solid var(--line-soft);
  font-size: 12px; font-weight: 600; color: var(--muted);
  display: flex; align-items: center; gap: 8px;
}
.vignette-body { padding: 18px; display: grid; gap: 10px; }
.vg-row {
  display: flex; align-items: center; justify-content: space-between; gap: 12px;
  border: 1px solid var(--line-soft); border-radius: 8px; padding: 10px 14px;
  background: var(--bg);
}
.vg-row .vg-main { min-width: 0; }
.vg-row .vg-main strong { display: block; font-size: 13.5px; font-weight: 600; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.vg-row .vg-main span { font-size: 11.5px; color: var(--faint); }
.badge {
  flex: none; font-size: 11px; font-weight: 600; border-radius: 999px; padding: 3px 10px;
}
.badge-ok   { background: var(--ok-soft); color: var(--ok); }
.badge-soft { background: var(--accent-soft); color: var(--accent-deep); }
.badge-warn { background: var(--danger-soft); color: var(--danger); }

/* --- pricing ---------------------------------------------------------------------------------------------- */

.included-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 14px 28px; max-width: 920px; }
.included-grid .item { display: flex; gap: 11px; font-size: 15px; color: var(--ink-soft); }
.included-grid .tick { margin-top: 4px; }

/* --- contact form ------------------------------------------------------------------------------------------- */

.contact-grid { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1.3fr); gap: 64px; align-items: start; }
.contact-aside h2 { font-size: 22px; margin-bottom: 12px; }
.contact-aside p { color: var(--muted); }
.contact-aside .contact-list { list-style: none; margin: 26px 0 0; padding: 0; display: grid; gap: 14px; }
.contact-aside .contact-list li { display: flex; gap: 12px; align-items: flex-start; font-size: 15px; color: var(--ink-soft); }

.form-card {
  background: var(--panel); border: 1px solid var(--line); border-radius: var(--radius-lg);
  padding: 36px; box-shadow: var(--shadow);
}
.form-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; }
.form-grid .span-2 { grid-column: 1 / -1; }
.field label { display: block; font-size: 13px; font-weight: 600; color: var(--ink-soft); margin-bottom: 6px; }
.field .req { color: var(--danger); }
.field input, .field select, .field textarea {
  width: 100%; font: inherit; font-size: 15px; color: var(--ink);
  background: var(--bg); border: 1px solid var(--line); border-radius: var(--radius);
  padding: 11px 14px;
}
.field textarea { min-height: 140px; resize: vertical; }
.field input:focus, .field select:focus, .field textarea:focus {
  outline: none; border-color: var(--accent); box-shadow: 0 0 0 3px var(--accent-soft);
}
.field .error-msg { color: var(--danger); font-size: 12.5px; margin-top: 5px; }
.field.has-error input, .field.has-error textarea, .field.has-error select { border-color: var(--danger); }
.hp-field { position: absolute; left: -9999px; width: 1px; height: 1px; overflow: hidden; }

.alert { border-radius: var(--radius); padding: 16px 20px; margin-bottom: 24px; font-size: 15px; }
.alert-ok { background: var(--ok-soft); border: 1px solid #c6dfcf; color: var(--ok); }
.alert-error { background: var(--danger-soft); border: 1px solid #eccfcb; color: var(--danger); }
.alert p { margin: 0; }
.alert p + p { margin-top: 6px; }

/* --- error page --------------------------------------------------------------------------------------------- */

.error-hero { padding: 140px 0; text-align: center; }
.error-hero .code {
  font-family: var(--font-mono); font-size: 13px; font-weight: 700;
  color: var(--accent); letter-spacing: .12em; margin-bottom: 18px; display: block;
}
.error-hero h1 { font-size: clamp(32px, 4.5vw, 46px); margin-bottom: 16px; }
.error-hero p { color: var(--muted); margin-bottom: 32px; }

/* --- reveal on scroll ------------------------------------------------------------------------------------------ */

.reveal { opacity: 0; transform: translateY(18px); transition: opacity .6s ease, transform .6s ease; }
.reveal.is-visible { opacity: 1; transform: none; }
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .reveal { opacity: 1; transform: none; transition: none; }
  .card, .connector, .btn { transition: none; }
}

/* --- responsive --------------------------------------------------------------------------------------------------- */

@media (max-width: 1000px) {
  .section { padding: 72px 0; }
  .hero-grid { grid-template-columns: 1fr; gap: 48px; }
  .card-grid, .steps { grid-template-columns: 1fr 1fr; }
  .connector-grid { grid-template-columns: repeat(3, 1fr); }
  .trust-grid { grid-template-columns: 1fr 1fr; }
  .feature-row { grid-template-columns: 1fr; gap: 36px; padding: 56px 0; }
  .feature-row.flip .feature-copy { order: 0; }
  .contact-grid { grid-template-columns: 1fr; gap: 40px; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .included-grid { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 680px) {
  .nav-toggle { display: inline-flex; }
  .site-nav {
    display: none; position: absolute; top: 68px; left: 0; right: 0;
    flex-direction: column; align-items: stretch; gap: 4px;
    background: var(--bg); border-bottom: 1px solid var(--line);
    padding: 14px 24px 20px; box-shadow: var(--shadow-lg);
  }
  .site-nav.is-open { display: flex; }
  .nav-link { padding: 12px 14px; }
  .nav-cta { margin: 8px 0 0; justify-content: center; }

  .hero { padding: 56px 0 48px; }
  .card-grid, .steps, .perm-demo, .deploy-grid, .included-grid { grid-template-columns: 1fr; }
  .connector-grid { grid-template-columns: 1fr 1fr; }
  .trust-grid { grid-template-columns: 1fr; }
  .cta-inner { padding: 56px 24px; }
  .form-grid { grid-template-columns: 1fr; }
  .form-card { padding: 26px 22px; }
  .footer-grid { grid-template-columns: 1fr; gap: 28px; }
  .footer-legal { flex-direction: column; gap: 6px; }
}