/* ----------------------------------------------------------------------
   Elmech eTRU Insights — global stylesheet
   Aligned to the /product page design system so all pages share one
   formal, corporate look and feel.
   ---------------------------------------------------------------------- */

:root {
  --bg: #faf7f1;
  --bg-2: #f3eee4;
  --ink: #1a1814;
  --ink-2: #3a342c;
  --ink-3: #6a635b;
  --rule: #d8d0c2;
  --rule-2: #e6dfd1;
  --accent: #c2461e;
  --accent-2: #a83a17;
  --accent-soft: rgba(194, 70, 30, 0.08);
  --ok: #2a7a4b;
  --on-accent: #ffffff;

  --serif: "Source Serif 4", "Source Serif Pro", Georgia, serif;
  --sans: "Inter", system-ui, -apple-system, Segoe UI, Roboto, sans-serif;
  --mono: "JetBrains Mono", ui-monospace, SFMono-Regular, Menlo, monospace;

  --maxw: 1200px;
  --pad-x: 32px;
  --pad-x-sm: 24px;
}

*,
*::before,
*::after {
  box-sizing: border-box;
}
* {
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

body {
  background: var(--bg);
  color: var(--ink);
  font-family: var(--sans);
  font-size: 16px;
  line-height: 1.6;
  font-feature-settings: "ss01", "cv11";
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

img,
svg {
  display: block;
  max-width: 100%;
}

a {
  color: var(--ink);
}

/* ─── TYPOGRAPHY ─── */
h1,
h2,
h3,
h4 {
  font-family: var(--serif);
  color: var(--ink);
  letter-spacing: -0.01em;
  line-height: 1.15;
  font-weight: 500;
}

h1 {
  font-size: 48px;
  margin: 0 0 24px;
}
h2 {
  font-size: 32px;
  margin: 0 0 16px;
}
h3 {
  font-size: 20px;
  margin: 0 0 8px;
}
h4 {
  font-size: 16px;
  margin: 0 0 6px;
}

p {
  margin: 0 0 16px;
}
p:last-child {
  margin-bottom: 0;
}

a:not(.btn):not(.nav-logo):not(.nav-links a):not(.footer-links a) {
  color: var(--ink);
  text-decoration: underline;
  text-underline-offset: 3px;
  text-decoration-thickness: 1px;
}

a:hover {
  color: var(--accent);
}

.section-eyebrow,
.eyebrow {
  font-family: var(--mono);
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: 0.16em;
  color: var(--ink-3);
  margin: 0 0 16px;
  display: block;
}

.section-lead,
.page-lead,
.hero-sub {
  max-width: 720px;
  color: var(--ink-2);
  font-size: 17px;
  margin: 0 0 32px;
}

.section-lead {
  margin: 0 0 48px;
}

/* legacy hero-eyebrow (older pages) */
.hero-eyebrow,
.label {
  font-family: var(--mono);
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: 0.16em;
  color: var(--ink-3);
  margin: 0 0 16px;
  display: inline-block;
}

/* ─── LAYOUT ─── */
.container {
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 0 var(--pad-x);
}

.section {
  padding: 96px 0;
  border-top: 1px solid var(--rule);
}

.section:first-of-type {
  border-top: 0;
}

/* legacy: when .section is used without .container wrap (older pages) */
.section.section-bare {
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 96px var(--pad-x);
  border-top: 0;
}

main {
  display: block;
}

/* skip link */
.skip {
  position: absolute;
  left: -10000px;
  top: auto;
  width: 1px;
  height: 1px;
  overflow: hidden;
}

.skip:focus {
  position: static;
  width: auto;
  height: auto;
  padding: 8px 12px;
  background: var(--ink);
  color: var(--bg);
}

/* ─── TOPBAR ─── */
.topbar {
  background: var(--ink);
  color: #d8d0c2;
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 0.04em;
}

.topbar-inner {
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 8px var(--pad-x);
  display: flex;
  justify-content: space-between;
  gap: 24px;
}

.topbar-live {
  display: inline-flex;
  align-items: center;
  gap: 8px;
}

.live-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 0 0 rgba(194, 70, 30, 0.6);
  animation: pulse 2s infinite;
}

@keyframes pulse {
  0% {
    box-shadow: 0 0 0 0 rgba(194, 70, 30, 0.6);
  }
  70% {
    box-shadow: 0 0 0 6px rgba(194, 70, 30, 0);
  }
  100% {
    box-shadow: 0 0 0 0 rgba(194, 70, 30, 0);
  }
}

/* ─── NAV ─── */
nav.site-nav,
nav:not(.site-nav):not(.footer-links) {
  background: var(--bg);
  border-bottom: 1px solid var(--rule);
}

.nav-inner,
nav:not(.site-nav):not(.footer-links) {
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 20px var(--pad-x);
  display: flex;
  align-items: center;
  gap: 32px;
}

/* When using older shell where nav itself is flex container */
nav:not(.site-nav):not(.footer-links) {
  border-bottom: 1px solid var(--rule);
}

.nav-logo {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  text-decoration: none;
  color: var(--ink);
}

.nav-logo-img {
  height: auto;
  max-height: 40px;
  width: auto;
  flex: none;
  display: block;
  mix-blend-mode: multiply;
}

body {
  overflow-x: hidden;
}

.nav-links {
  list-style: none;
  margin: 0 auto 0 24px;
  padding: 0;
  display: flex;
  gap: 28px;
}

.nav-links a {
  text-decoration: none;
  font-size: 14px;
  color: var(--ink-2);
  transition: color 0.15s;
}

.nav-links a:hover {
  color: var(--accent);
}

.nav-links a[aria-current="page"],
.nav-links a.active {
  color: var(--ink);
  border-bottom: 1px solid var(--accent);
  padding-bottom: 4px;
}

/* legacy nav-button (older pages reference .btn-nav) */
.btn-nav,
.btn,
.btn-primary,
.btn-outline,
.btn-secondary {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--sans);
  font-size: 14px;
  font-weight: 500;
  padding: 10px 18px;
  border-radius: 2px;
  text-decoration: none;
  border: 1px solid var(--ink);
  background: transparent;
  color: var(--ink);
  cursor: pointer;
  transition:
    background 0.15s,
    color 0.15s,
    border-color 0.15s;
  white-space: nowrap;
}

.btn-nav:hover,
.btn-outline:hover {
  background: var(--ink);
  color: var(--bg);
}

.btn-primary {
  background: var(--accent);
  color: var(--on-accent);
  border-color: var(--accent);
}

.btn-primary:hover {
  background: var(--accent-2);
  border-color: var(--accent-2);
  color: var(--on-accent);
}

.btn-link {
  font-family: var(--sans);
  font-size: 14px;
  color: var(--ink-2);
  text-decoration: none;
  border-bottom: 1px solid var(--rule);
  padding-bottom: 2px;
  transition:
    color 0.15s,
    border-color 0.15s;
}

.btn-link:hover {
  color: var(--accent);
  border-color: var(--accent);
}

/* ─── HERO ─── */
.hero {
  padding: 96px 0 64px;
}

.hero h1 {
  max-width: 880px;
}

.hero-sub {
  max-width: 720px;
  font-size: 18px;
  color: var(--ink-2);
  margin: 0 0 32px;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  align-items: center;
}

/* ─── PROOF STRIP ─── */
.proof {
  background: var(--ink);
  color: #d8d0c2;
}

.proof .container {
  padding-top: 48px;
  padding-bottom: 48px;
}

.proof-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 0;
}

.proof-item {
  padding: 8px 24px;
  border-right: 1px solid #2a2824;
}

.proof-item:first-child {
  padding-left: 0;
}
.proof-item:last-child {
  border-right: 0;
  padding-right: 0;
}

.proof-value {
  font-family: var(--serif);
  font-size: 36px;
  font-weight: 500;
  color: #ffffff;
  line-height: 1.05;
  margin: 0 0 8px;
  letter-spacing: -0.01em;
}

.proof-label {
  font-size: 14px;
  color: #a8a39c;
  line-height: 1.5;
  margin: 0;
}

.proof-note {
  margin: 24px 0 0;
  font-size: 12px;
  color: #8a857d;
  max-width: 60ch;
  font-family: var(--mono);
}

/* ─── VALUE PILLARS ─── */
.pillars {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 32px;
  margin-top: 16px;
}

.pillar {
  border-top: 2px solid var(--accent);
  padding-top: 16px;
}

.pillar h3 {
  font-family: var(--serif);
  font-size: 22px;
  font-weight: 500;
  margin: 0 0 10px;
  color: var(--ink);
}

.pillar p {
  color: var(--ink-2);
  font-size: 15px;
  margin: 0;
  max-width: 38ch;
}

/* ─── HOW IT WORKS ─── */
.steps {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 32px;
  margin-top: 16px;
}

.step {
  border-top: 2px solid var(--accent);
  padding-top: 16px;
}

.step-num {
  font-family: var(--mono);
  font-size: 13px;
  color: var(--accent);
  letter-spacing: 0.1em;
  margin: 0 0 12px;
  text-transform: uppercase;
}

.step h3 {
  font-family: var(--serif);
  font-size: 20px;
  font-weight: 500;
  margin-bottom: 8px;
  color: var(--ink);
}

.step p {
  color: var(--ink-2);
  font-size: 15px;
  margin: 0;
}

/* legacy support for step-title / step-desc */
.step-title {
  font-family: var(--serif);
  font-size: 20px;
  font-weight: 500;
  margin-bottom: 8px;
  color: var(--ink);
}

.step-desc,
.step-body {
  color: var(--ink-2);
  font-size: 15px;
  margin: 0;
}

/* ─── PRODUCT VISUAL ─── */
.product-visual {
  background: var(--bg);
  border: 1px solid var(--rule);
  border-radius: 4px;
  overflow: hidden;
  max-width: 1080px;
  margin: 0 auto;
}

.product-visual img {
  width: 100%;
  height: auto;
  display: block;
}

/* portal mock used in hero / product-visual */
.mock {
  position: relative;
  background: var(--bg);
  border: 1px solid var(--rule);
  border-radius: 4px;
  overflow: hidden;
}

.mock-chrome {
  background: var(--bg-2);
  border-bottom: 1px solid var(--rule);
  padding: 8px 14px;
  display: flex;
  align-items: center;
  gap: 8px;
  font-family: var(--mono);
  font-size: 11px;
  color: var(--ink-3);
}

.mock-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--rule);
}

.mock-url {
  flex: 1;
  margin-left: 8px;
}

.mock-body {
  display: grid;
  grid-template-columns: 140px 1fr;
  min-height: 320px;
}

.mock-side {
  background: var(--bg-2);
  border-right: 1px solid var(--rule);
  padding: 16px 12px;
  font-family: var(--sans);
  font-size: 13px;
}

.mock-side-title {
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--ink-3);
  padding: 0 4px 8px;
}

.mock-side a {
  display: block;
  padding: 6px 8px;
  border-radius: 2px;
  color: var(--ink-2);
  text-decoration: none;
  font-size: 13px;
}

.mock-side a.active {
  background: var(--accent-soft);
  color: var(--accent);
}

.mock-main {
  padding: 20px 20px 24px;
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.mock-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
}

.mock-unit-id {
  font-weight: 500;
  color: var(--ink);
  font-size: 14px;
}

.mock-pill {
  font-family: var(--mono);
  font-size: 10px;
  font-weight: 500;
  letter-spacing: 0.08em;
  padding: 3px 8px;
  border-radius: 2px;
  background: rgba(42, 122, 75, 0.1);
  color: var(--ok);
  text-transform: uppercase;
}

.mock-kpis {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 8px;
}

.mock-kpi {
  background: var(--bg);
  border: 1px solid var(--rule);
  border-radius: 2px;
  padding: 10px 12px;
}

.mock-kpi-label {
  font-family: var(--mono);
  font-size: 10px;
  color: var(--ink-3);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  margin: 0 0 4px;
}

.mock-kpi-value {
  font-family: var(--serif);
  font-size: 20px;
  font-weight: 500;
  color: var(--ink);
  line-height: 1.1;
}

.mock-kpi-value.accent {
  color: var(--accent);
}
.mock-kpi-value.ok {
  color: var(--ok);
}

.mock-chart {
  background: var(--bg);
  border: 1px solid var(--rule);
  border-radius: 2px;
  padding: 12px;
  flex: 1;
}

.mock-chart-title {
  font-family: var(--mono);
  font-size: 11px;
  color: var(--ink-3);
  margin: 0 0 8px;
  display: flex;
  justify-content: space-between;
}

.mock-chart svg {
  width: 100%;
  height: 110px;
}

/* ─── REVEAL ─── */
.reveal,
.feat,
.step,
.stat,
.stream-item,
.screen-card,
.pillar {
  opacity: 0;
  transform: translateY(12px);
  transition:
    opacity 0.5s ease,
    transform 0.5s ease;
}

.reveal.visible,
.feat.visible,
.step.visible,
.stat.visible,
.stream-item.visible,
.screen-card.visible,
.pillar.visible {
  opacity: 1;
  transform: none;
}

@media (prefers-reduced-motion: reduce) {
  .reveal,
  .feat,
  .step,
  .stat,
  .stream-item,
  .screen-card,
  .pillar,
  .live-dot {
    animation: none;
    opacity: 1;
    transform: none;
    transition: none;
  }
  html {
    scroll-behavior: auto;
  }
}

/* ─── CLOSING CTA (dark variant, used by /product) ─── */
.closing {
  background: var(--ink);
  color: var(--bg);
}

.closing .container {
  padding-top: 96px;
  padding-bottom: 96px;
}

.closing h2 {
  color: var(--bg);
}

.closing p {
  color: #c7bfb1;
  max-width: 680px;
  font-size: 17px;
}

.closing .btn-outline {
  border-color: var(--bg);
  color: var(--bg);
}

.closing .btn-outline:hover {
  background: var(--bg);
  color: var(--ink);
}

/* ─── FOOTER ─── */
footer.site-footer {
  background: var(--bg);
  border-top: 1px solid var(--rule);
  padding: 32px 0;
  font-size: 13px;
  color: var(--ink-3);
}

.footer-inner {
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 0 var(--pad-x);
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 16px;
  align-items: center;
}

.footer-links {
  display: flex;
  gap: 20px;
  flex-wrap: wrap;
}

.footer-links a {
  color: var(--ink-3);
  text-decoration: none;
}

.footer-links a:hover {
  color: var(--accent);
}

/* legacy footer (older pages) */
footer:not(.site-footer) {
  border-top: 1px solid var(--rule);
  background: var(--bg);
  color: var(--ink-3);
  padding: 32px var(--pad-x);
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 16px;
  font-family: var(--sans);
  font-size: 13px;
  letter-spacing: 0;
  text-transform: none;
}

footer:not(.site-footer) .f-logo {
  color: var(--ink-2);
  font-weight: 500;
}

footer:not(.site-footer) .f-logo span {
  color: var(--accent);
}

footer:not(.site-footer) .footer-meta {
  display: flex;
  flex-direction: column;
  gap: 4px;
  align-items: flex-end;
}

footer:not(.site-footer) .footer-links {
  display: flex;
  gap: 20px;
  flex-wrap: wrap;
  justify-content: flex-end;
}

/* ─── INNER PAGES (about / contact / demo / legal / portal) ─── */
.page-hero {
  border-bottom: 1px solid var(--rule);
  background: var(--bg);
}

.page-hero-inner {
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 80px var(--pad-x) 56px;
}

.page-hero h1 {
  font-size: clamp(32px, 4vw, 44px);
  max-width: 22ch;
}

.cards-2 {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
}

.cards-3 {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.info-card {
  background: var(--bg);
  border: 1px solid var(--rule);
  padding: 24px;
  border-radius: 4px;
}

.info-card h3 {
  font-family: var(--serif);
  font-size: 18px;
  font-weight: 500;
  margin: 0 0 10px;
}

.info-card p {
  font-size: 15px;
  color: var(--ink-2);
}

.page-list {
  list-style: none;
  margin-top: 8px;
}

.page-list li {
  font-size: 15px;
  color: var(--ink-2);
  padding: 6px 0;
  border-bottom: 1px solid var(--rule);
}

.page-list li:last-child {
  border-bottom: none;
}

/* Section immediately after the page-hero band: hide the top rule
   (the page-hero itself already provides the visual break). */
.page-hero + .section {
  border-top: 0;
}

/* ─── FORMS ─── */
.contact-form {
  display: grid;
  gap: 12px;
}

.contact-form label {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--ink-3);
}

.contact-form input,
.contact-form select,
.contact-form textarea {
  width: 100%;
  border: 1px solid var(--rule);
  border-radius: 2px;
  padding: 10px 12px;
  font: inherit;
  background: var(--bg);
  color: var(--ink);
  transition:
    border-color 0.15s,
    box-shadow 0.15s;
}

.contact-form input:focus,
.contact-form select:focus,
.contact-form textarea:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-soft);
}

.contact-form textarea {
  min-height: 140px;
  resize: vertical;
}

.contact-form button[disabled] {
  opacity: 0.7;
  cursor: wait;
}

.contact-form .btn-primary {
  width: max-content;
}

.form-note {
  margin-top: 12px;
  font-size: 13px;
  color: var(--ink-3);
}

.form-note code {
  font-family: var(--mono);
  font-size: 12px;
  background: var(--bg-2);
  border: 1px solid var(--rule);
  padding: 2px 4px;
  border-radius: 2px;
}

/* ─── ORANGE CTA BAND (legacy, used by about/demo/contact) ─── */
.cta {
  background: var(--accent);
  padding: 80px var(--pad-x);
  text-align: center;
  color: #fff;
}

.cta h2 {
  color: #fff;
  font-size: clamp(28px, 3.5vw, 40px);
  margin-bottom: 12px;
}

.cta p {
  color: rgba(255, 255, 255, 0.85);
  max-width: 56ch;
  margin: 0 auto 28px;
  font-size: 17px;
}

.btn-white,
.btn-white-outline {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--sans);
  font-size: 14px;
  font-weight: 500;
  padding: 10px 18px;
  border-radius: 2px;
  text-decoration: none;
  margin: 0 6px;
  transition:
    background 0.15s,
    color 0.15s,
    border-color 0.15s;
}

.btn-white {
  background: #fff;
  color: var(--accent);
  border: 1px solid #fff;
}

.btn-white:hover {
  background: rgba(255, 255, 255, 0.92);
}

.btn-white-outline {
  background: transparent;
  color: #fff;
  border: 1px solid rgba(255, 255, 255, 0.6);
}

.btn-white-outline:hover {
  border-color: #fff;
  background: rgba(255, 255, 255, 0.08);
}

/* ─── PORTAL LOGIN PAGE ─── */
.portal-login-wrap {
  background: var(--bg);
  border: 1px solid var(--rule);
  border-radius: 4px;
  overflow: hidden;
}

.portal-login-frame {
  width: 100%;
  min-height: 720px;
  border: none;
  background: #fff;
}

.portal-login-fallback {
  border-top: 1px solid var(--rule);
  background: var(--bg-2);
  padding: 14px 16px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}

.portal-login-fallback p {
  font-size: 14px;
  color: var(--ink-2);
  margin: 0;
}

.legal-stack {
  display: grid;
  gap: 12px;
}
.legal-stack h2 {
  margin-top: 16px;
  font-size: 20px;
}
.legal-stack p {
  color: var(--ink-2);
  font-size: 15px;
}

.status-card {
  max-width: 780px;
  margin: 16px auto;
}
.status-card.error {
  border-color: #e5b1a0;
  background: #fff7f3;
}

/* ─── SUBPAGE PATTERNS (integrations / case-studies) ─── */
.sub-features {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1px;
  background: var(--rule);
  border: 1px solid var(--rule);
  margin-top: 16px;
}

.sub-feat {
  background: var(--bg);
  padding: 32px 28px;
}

.sub-feat-title {
  font-family: var(--serif);
  font-size: 20px;
  font-weight: 500;
  color: var(--ink);
  margin: 0 0 10px;
}

.sub-feat-body {
  font-size: 15px;
  color: var(--ink-2);
  line-height: 1.6;
  margin: 0;
}

.integrations-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1px;
  background: var(--rule);
  border: 1px solid var(--rule);
}

.integration {
  background: var(--bg);
  padding: 28px;
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 16px;
  align-items: start;
}

.integration-num {
  font-family: var(--mono);
  font-size: 12px;
  color: var(--ink-3);
  letter-spacing: 0.1em;
}

.integration h3 {
  font-family: var(--serif);
  font-size: 18px;
  font-weight: 500;
  margin: 0 0 6px;
}

.integration p {
  color: var(--ink-2);
  font-size: 14px;
  margin: 0;
}

.protocols {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 16px;
}

.protocol {
  font-family: var(--mono);
  font-size: 11px;
  color: var(--ink-2);
  background: var(--bg-2);
  border: 1px solid var(--rule);
  padding: 4px 10px;
  border-radius: 2px;
  letter-spacing: 0.04em;
}

.case-placeholder {
  background: var(--bg);
  border: 1px solid var(--rule);
  border-radius: 4px;
  padding: 48px 32px;
  text-align: center;
}

.case-placeholder h3 {
  font-family: var(--serif);
  font-size: 22px;
  font-weight: 500;
  margin-bottom: 12px;
}

.case-placeholder p {
  color: var(--ink-2);
  max-width: 52ch;
  margin: 0 auto 24px;
}

/* ─── WHAT IT IS (eTRU unit, two-column) ─── */
.what-it-is {
  display: grid;
  grid-template-columns: minmax(0, 1.05fr) minmax(0, 0.95fr);
  gap: 64px;
  align-items: start;
  margin-top: 16px;
}

.what-it-is-narrative p {
  color: var(--ink-2);
  font-size: 17px;
  max-width: 56ch;
}

.what-it-is-narrative p:last-of-type {
  margin-bottom: 0;
}

.spec-block {
  border-top: 1px solid var(--rule);
}

.spec-row {
  display: grid;
  grid-template-columns: minmax(0, 0.9fr) minmax(0, 1.1fr);
  gap: 24px;
  padding: 14px 0;
  border-bottom: 1px solid var(--rule);
  align-items: baseline;
}

.spec-key {
  font-size: 14px;
  color: var(--ink-3);
}

.spec-value {
  font-family: var(--mono);
  font-size: 14px;
  color: var(--ink);
  letter-spacing: 0.01em;
}

.spec-foot {
  margin-top: 20px;
  font-size: 14px;
}

.spec-foot a {
  color: var(--ink-2);
  text-decoration: none;
  border-bottom: 1px solid var(--rule);
  padding-bottom: 1px;
}

.spec-foot a:hover {
  color: var(--accent);
  border-bottom-color: var(--accent);
}

/* Quiet inline "Learn more →" / footer link used in pillars and steps */
.pillar-link,
.steps-foot a {
  display: inline-block;
  margin-top: 12px;
  font-size: 14px;
  color: var(--ink-2);
  text-decoration: none;
  border-bottom: 1px solid var(--rule);
  padding-bottom: 1px;
}

.pillar-link:hover,
.steps-foot a:hover {
  color: var(--accent);
  border-bottom-color: var(--accent);
}

.steps-foot {
  margin-top: 32px;
  font-size: 14px;
}

/* ─── RESPONSIVE ─── */
@media (max-width: 1024px) {
  .pillars,
  .steps,
  .cards-3,
  .sub-features {
    grid-template-columns: repeat(2, 1fr);
  }
  .mock-body {
    grid-template-columns: 1fr;
  }
  .mock-side {
    display: none;
  }
}

@media (max-width: 768px) {
  body {
    font-size: 16px;
  }

  h1 {
    font-size: 36px;
  }
  h2 {
    font-size: 26px;
  }

  .container,
  .topbar-inner,
  .nav-inner,
  .footer-inner,
  .page-hero-inner,
  nav:not(.site-nav):not(.footer-links),
  .cta {
    padding-left: var(--pad-x-sm);
    padding-right: var(--pad-x-sm);
  }

  .section {
    padding-top: 64px;
    padding-bottom: 64px;
  }

  .hero {
    padding: 64px 0 32px;
  }

  .nav-inner {
    flex-wrap: wrap;
  }

  .nav-links {
    order: 3;
    width: 100%;
    margin: 0;
    justify-content: flex-start;
  }

  .topbar-inner {
    flex-direction: column;
    gap: 4px;
  }

  .proof-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .proof-item {
    padding: 12px 16px;
    border-bottom: 1px solid #2a2824;
  }
  .proof-item:nth-child(2n) {
    border-right: 0;
  }
  .proof-item:nth-child(3),
  .proof-item:nth-child(4) {
    border-bottom: 0;
  }
  .proof-item:first-child,
  .proof-item:last-child {
    padding-left: 16px;
    padding-right: 16px;
  }

  .pillars,
  .steps,
  .cards-3,
  .cards-2,
  .sub-features,
  .integrations-grid {
    grid-template-columns: 1fr;
    gap: 16px;
  }

  .what-it-is {
    grid-template-columns: 1fr;
    gap: 40px;
  }

  .spec-row {
    grid-template-columns: 1fr;
    gap: 4px;
    padding: 12px 0;
  }

  .hero-actions {
    gap: 12px;
  }
}

@media (max-width: 420px) {
  h1 {
    font-size: 30px;
  }
  .nav-links {
    display: none;
  }
  .btn-primary,
  .btn-outline,
  .btn {
    width: 100%;
    justify-content: center;
  }
  .hero-actions {
    flex-direction: column;
    align-items: stretch;
  }
}