/* ==========================================================
   ENAVIO AI — Stylesheet
   1. Variables   2. Base   3. Background system   4. Buttons
   5. Navbar   6. Hero   7. Sections/rhythm   8. Impact
   9. Services   10. Architecture   11. Technology
   12. Process/timeline   13. Case studies (What we build)
   14. About tags / Philosophy equation   15. Final CTA
   16. Contact   17. Footer   18. Reveal   19. Cursor
   20. Responsive   21. Reduced motion
   ========================================================== */

/* ---------- 1. Variables ---------- */

:root {
  --bg: #0A0A0C;
  --surface: #111113;
  --surface-2: #17171A;
  --text: #F2F1ED;
  --text-muted: #8C8B87;
  --text-faint: #565650;
  --border: rgba(255, 255, 255, 0.08);
  --border-strong: rgba(255, 255, 255, 0.16);
  --accent: #4FD1E8;
  --accent-soft: rgba(79, 209, 232, 0.12);

  --font: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;

  --gutter: clamp(24px, 6vw, 96px);
  --nav-gutter: clamp(20px, 3vw, 48px);
  --max-w: 1280px;
  --section-pad: clamp(80px, 11vw, 160px);
  --ease: cubic-bezier(0.16, 1, 0.3, 1);
  --t-fast: 0.2s var(--ease);
  --t-med: 0.45s var(--ease);
}

/* ---------- 2. Base ---------- */

* { box-sizing: border-box; }
html {
  scroll-behavior: smooth;
  overflow-x: hidden;
  width: 100%;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: var(--font);
  font-size: 16px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

h1, h2, h3, h4 {
  font-family: var(--font);
  font-weight: 600;
  line-height: 1.08;
  letter-spacing: -0.02em;
  margin: 0;
}

p { margin: 0; color: var(--text-muted); }
a { color: inherit; text-decoration: none; }
ul, ol { list-style: none; margin: 0; padding: 0; }
img { max-width: 100%; display: block; }
button, select, input, textarea { font-family: inherit; }

.container {
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 0 var(--gutter);
  position: relative;
}

.skip-link {
  position: absolute;
  left: -999px;
  top: 0;
  background: var(--accent);
  color: #000;
  padding: 12px 20px;
  z-index: 1000;
}
.skip-link:focus { left: 12px; top: 12px; }

:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 3px;
}

/* ---------- 3. Background system ---------- */

.bg-system {
  position: fixed;
  inset: 0;
  z-index: -2;
  pointer-events: none;
  overflow: hidden;
}

.bg-grid {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(var(--border) 1px, transparent 1px),
    linear-gradient(90deg, var(--border) 1px, transparent 1px);
  background-size: 88px 88px;
  opacity: 0.35;
  mask-image: radial-gradient(ellipse 80% 60% at 50% 0%, black, transparent 70%);
}

.bg-glow {
  position: absolute;
  top: -20%;
  left: 50%;
  width: 900px;
  height: 900px;
  transform: translateX(-50%);
  background: radial-gradient(circle, var(--accent-soft) 0%, transparent 65%);
  opacity: 0.6;
}

/* ---------- 4. Buttons ---------- */

.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 15px 28px;
  font-size: 0.95rem;
  font-weight: 500;
  border-radius: 4px;
  border: 1px solid transparent;
  cursor: pointer;
  transition: transform var(--t-fast), background var(--t-fast), border-color var(--t-fast), color var(--t-fast);
}

.btn-primary {
  background: var(--text);
  color: var(--bg);
}
.btn-primary:hover { background: var(--accent); }

.btn-ghost {
  border-color: var(--border-strong);
  color: var(--text);
}
.btn-ghost:hover { border-color: var(--accent); color: var(--accent); }

/* ---------- 5. Navbar ---------- */

.navbar {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  padding: 26px 0;
  transition: background var(--t-med), padding var(--t-med), border-color var(--t-med);
  border-bottom: 1px solid transparent;
}

.navbar.scrolled {
  background: rgba(10, 10, 12, 0.82);
  backdrop-filter: blur(14px);
  padding: 16px 0;
  border-bottom-color: var(--border);
}

.navbar-inner {
  /* Full viewport width — NOT capped at --max-w like the content
     sections. On wide screens, capping this at 1280px and centering
     it left big dead margins on both sides of the navbar, making
     the logo/CTA sit far from the real edges of the window. */
  width: 100%;
  max-width: none;
  margin: 0;
  padding: 0 var(--nav-gutter);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.logo {
  display: inline-flex;
  align-items: center;
  flex-shrink: 0;
}

/* Wordmark image: height drives size, width follows the intrinsic ratio */
.logo img {
  display: block;
  height: 26px;
  width: auto;
  max-width: 100%;
  object-fit: contain;
}

.logo--footer img { height: 24px; }

.nav-links { display: flex; gap: 40px; }

.nav-links a {
  font-size: 0.92rem;
  color: var(--text-muted);
  transition: color var(--t-fast);
}
.nav-links a:hover { color: var(--text); }

.nav-cta { padding: 10px 20px; font-size: 0.86rem; flex-shrink: 0; }

.menu-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 8px;
}

.menu-toggle span {
  width: 22px; height: 1.5px;
  background: var(--text);
  transition: transform var(--t-fast), opacity var(--t-fast);
}

.menu-toggle[aria-expanded="true"] span:nth-child(1) { transform: translateY(6.5px) rotate(45deg); }
.menu-toggle[aria-expanded="true"] span:nth-child(2) { opacity: 0; }
.menu-toggle[aria-expanded="true"] span:nth-child(3) { transform: translateY(-6.5px) rotate(-45deg); }

/* ---------- 6. Hero ---------- */

.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  overflow: hidden;
  padding-top: 80px;
}

.hero-inner {
  position: relative;
  z-index: 2;
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 0 var(--gutter);
  width: 100%;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  gap: 40px;
  align-items: center;
}

.hero-visual {
  position: relative;
  aspect-ratio: 1 / 1;
  width: 100%;
  max-width: 460px;
  margin-left: auto;
}

.hero-visual canvas {
  width: 100%;
  height: 100%;
}

.eyebrow {
  display: inline-block;
  font-size: 0.82rem;
  color: var(--text-muted);
  letter-spacing: 0.06em;
  margin-bottom: 28px;
}

.hero h1 {
  font-size: clamp(3.2rem, 8.5vw, 7rem);
  max-width: 13ch;
}

.hero-statement {
  margin-top: 30px;
  font-size: clamp(1.1rem, 1.7vw, 1.35rem);
  color: var(--text-muted);
  max-width: 44ch;
}

.hero-actions {
  display: flex;
  gap: 16px;
  margin-top: 46px;
  flex-wrap: wrap;
}

/* ---------- 7. Section rhythm ---------- */

section {
  padding: var(--section-pad) 0;
  border-bottom: 1px solid var(--border);
  position: relative;
}

.section-head {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 56px;
  align-items: end;
  margin-bottom: 72px;
}

.section-head h2 { font-size: clamp(2rem, 4vw, 3rem); }
.section-head p { font-size: 1.05rem; max-width: 42ch; }

/* ---------- 8. Impact ---------- */

.impact-headline {
  font-size: clamp(2.2rem, 5vw, 3.8rem);
  max-width: 18ch;
}

.impact-copy {
  margin-top: 24px;
  font-size: 1.1rem;
  max-width: 56ch;
}

.capability-row {
  display: flex;
  flex-wrap: wrap;
  gap: 14px 0;
  margin-top: 56px;
}

.capability-row li {
  font-size: 0.92rem;
  color: var(--text-muted);
  padding: 0 28px;
  border-left: 1px solid var(--border);
}
.capability-row li:first-child { padding-left: 0; border-left: none; }

/* ---------- 9. Services ---------- */

.service-list { display: flex; flex-direction: column; }

.service-row {
  position: relative;
  display: grid;
  grid-template-columns: 60px 1.6fr 1fr 40px;
  align-items: center;
  gap: 32px;
  padding: 44px 32px;
  border-top: 1px solid var(--border);
  border-radius: 6px;
  transition: background var(--t-med), border-color var(--t-med);
}
.service-list .service-row:last-child { border-bottom: 1px solid var(--border); }

.service-row:hover {
  background: var(--surface);
  border-color: var(--border-strong);
}

.service-num {
  font-size: 0.9rem;
  color: var(--accent);
  transition: transform var(--t-med);
}
.service-row:hover .service-num { transform: translateX(4px); }

.service-content h3 { font-size: 1.4rem; margin-bottom: 10px; }
.service-content p { font-size: 0.98rem; max-width: 46ch; }

.service-visual {
  display: flex;
  gap: 6px;
  justify-content: flex-end;
  opacity: 0.35;
  transition: opacity var(--t-med);
}
.service-row:hover .service-visual { opacity: 1; }

.service-visual span {
  width: 4px;
  height: 24px;
  background: var(--accent);
  border-radius: 2px;
  transform: scaleY(0.4);
  transition: transform var(--t-med);
}
.service-row:hover .service-visual span:nth-child(1) { transform: scaleY(0.6); transition-delay: 0s; }
.service-row:hover .service-visual span:nth-child(2) { transform: scaleY(1); transition-delay: 0.06s; }
.service-row:hover .service-visual span:nth-child(3) { transform: scaleY(0.75); transition-delay: 0.12s; }

.service-arrow {
  font-size: 1.2rem;
  color: var(--text-faint);
  text-align: right;
  transition: transform var(--t-med), color var(--t-med);
}
.service-row:hover .service-arrow { transform: translate(4px, -4px); color: var(--accent); }

/* ---------- 10. Architecture ---------- */

.arch-flow {
  display: flex;
  align-items: center;
  overflow-x: auto;
  padding-bottom: 8px;
  gap: 0;
}

.arch-node {
  flex: 0 0 auto;
  padding: 22px 26px;
  border: 1px solid var(--border-strong);
  border-radius: 6px;
  background: var(--surface);
  font-size: 0.82rem;
  letter-spacing: 0.05em;
  color: var(--text);
  white-space: nowrap;
}

.arch-node--outcome {
  border-color: var(--accent);
  color: var(--accent);
}

.arch-connector {
  flex: 1 1 40px;
  min-width: 32px;
  height: 1px;
  background: var(--border-strong);
  position: relative;
  margin: 0 4px;
}

.arch-pulse {
  position: absolute;
  top: -1.5px;
  left: -6px;
  width: 8px;
  height: 4px;
  border-radius: 2px;
  background: var(--accent);
  animation: arch-travel 3s linear infinite;
  opacity: 0.9;
}

@keyframes arch-travel {
  0% { left: -6px; opacity: 0; }
  10% { opacity: 1; }
  90% { opacity: 1; }
  100% { left: calc(100% - 2px); opacity: 0; }
}

/* ---------- 11. Technology ---------- */

.tech-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1px;
  background: var(--border);
  border: 1px solid var(--border);
}

.tech-item {
  background: var(--bg);
  padding: 28px 32px;
  font-size: 1rem;
  color: var(--text);
  transition: background var(--t-fast), color var(--t-fast);
}
.tech-item:hover { background: var(--surface); color: var(--accent); }

/* ---------- 12. Process / timeline ---------- */

.timeline { position: relative; }

.timeline-track {
  height: 1px;
  background: var(--border);
  margin-bottom: 56px;
  position: relative;
}

.timeline-progress {
  position: absolute;
  top: 0; left: 0;
  height: 1px;
  width: 0%;
  background: var(--accent);
  transition: width 0.3s linear;
}

.timeline-step {
  display: grid;
  grid-template-columns: 1fr 3fr;
  gap: 24px;
  padding: 28px 0;
  border-top: 1px solid var(--border);
}
.timeline-step:last-child { border-bottom: 1px solid var(--border); }

.step-num { font-size: 0.85rem; color: var(--accent); }
.timeline-step h3 { font-size: 1.15rem; margin-bottom: 10px; }
.timeline-step p { font-size: 0.96rem; max-width: 48ch; }

/* ---------- 13. What we build ---------- */

.case-list { display: flex; flex-direction: column; }

.case-row {
  padding: 40px 0;
  border-top: 1px solid var(--border);
  transition: background var(--t-med);
}
.case-list .case-row:last-child { border-bottom: 1px solid var(--border); }
.case-row:hover { background: var(--surface); }

.case-tag {
  font-size: 0.8rem;
  color: var(--accent);
  display: block;
  margin-bottom: 14px;
}

.case-content h3 { font-size: 1.4rem; margin-bottom: 10px; }
.case-content p { font-size: 0.98rem; max-width: 52ch; }

.case-tag--progress { color: var(--text-muted); }

.case-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  margin-top: 18px;
  font-size: 0.88rem;
  color: var(--accent);
  border-bottom: 1px solid transparent;
  transition: border-color var(--t-fast);
}
.case-link:hover { border-bottom-color: var(--accent); }

/* ---------- 14. About tags / Philosophy equation ---------- */

.about-layout {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
  align-items: center;
}

.about-layout h2 { font-size: clamp(2rem, 4vw, 2.8rem); }
.about-layout p { margin-top: 20px; font-size: 1.05rem; max-width: 44ch; }

.about-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.about-tags span {
  border: 1px solid var(--border-strong);
  border-radius: 4px;
  padding: 10px 18px;
  font-size: 0.88rem;
  letter-spacing: 0.02em;
  color: var(--text);
}

.philosophy h2 {
  font-size: clamp(2.4rem, 5.5vw, 4rem);
  max-width: 14ch;
}

.philosophy-copy {
  margin-top: 20px;
  font-size: 1.2rem;
  color: var(--text);
  max-width: 40ch;
}

.equation {
  margin-top: 56px;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 16px;
  font-size: 0.95rem;
  letter-spacing: 0.04em;
  color: var(--text-muted);
}

.equation span:not(.equation-op):not(.equation-line) {
  border: 1px solid var(--border-strong);
  border-radius: 4px;
  padding: 10px 18px;
  color: var(--text);
}

.equation-op { color: var(--text-faint); font-size: 1rem; }

.equation-line {
  flex-basis: 100%;
  height: 1px;
  background: var(--border-strong);
  margin: 6px 0;
}

.equation-result {
  border-color: var(--accent) !important;
  color: var(--accent) !important;
  font-weight: 600;
}

.equation--wide { margin-top: 64px; }

/* ---------- 14a2. Why Enavio — condensed home teaser ---------- */

.why-teaser-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 40px;
  flex-wrap: wrap;
}

.why-teaser-text {
  font-size: clamp(1.15rem, 2.4vw, 1.5rem);
  color: var(--text-muted);
  max-width: 52ch;
  line-height: 1.5;
}
.why-teaser-text strong { color: var(--text); font-weight: 600; }

/* ---------- 14b. Why Enavio (principles) ---------- */

.principle-list {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 48px;
}

.principle {
  padding-top: 24px;
  border-top: 1px solid var(--border-strong);
}

.principle-num {
  display: block;
  font-size: 0.85rem;
  color: var(--accent);
  margin-bottom: 20px;
}

.principle h3 {
  font-size: 1.2rem;
  margin-bottom: 12px;
}

.principle p {
  font-size: 0.96rem;
  max-width: 34ch;
}

/* ---------- 14c. Founder (quiet, text-only — no photo) ---------- */

.founder {
  padding-top: clamp(56px, 7vw, 96px);
  padding-bottom: clamp(56px, 7vw, 96px);
}

.founder-layout {
  max-width: 640px;
}

.founder-name {
  display: block;
  font-family: var(--serif, var(--font));
  font-size: 1.1rem;
  color: var(--text);
}

.founder-title {
  display: block;
  font-size: 0.88rem;
  color: var(--text-muted);
  margin-top: 4px;
  margin-bottom: 20px;
}

.founder-statement {
  font-size: 0.98rem;
  max-width: 52ch;
}

/* "Read more" toggle — styled like .case-link */
.founder-toggle {
  display: inline-flex;
  margin-top: 14px;
  padding: 0;
  background: none;
  border: 0;
  border-bottom: 1px solid transparent;
  font-size: 0.88rem;
  color: var(--accent);
  cursor: pointer;
}
/* beats .reveal's transition (declared later) so the underline still fades */
.founder-layout .founder-toggle {
  transition: border-color var(--t-fast), opacity 0.7s var(--ease), transform 0.7s var(--ease);
}
.founder-toggle:hover { border-bottom-color: var(--accent); }

/* Collapsed by default (no shift on load); grid rows animate the height.
   visibility keeps hidden text out of the tab order and screen readers. */
.founder-more {
  display: grid;
  grid-template-rows: 0fr;
  opacity: 0;
  visibility: hidden;
  transition: grid-template-rows var(--t-med), opacity var(--t-med), visibility 0s linear 0.45s;
}
.founder-more.is-open {
  grid-template-rows: 1fr;
  opacity: 1;
  visibility: visible;
  transition: grid-template-rows var(--t-med), opacity var(--t-med), visibility 0s;
}
.founder-more-inner { overflow: hidden; min-height: 0; }
.founder-more-inner .founder-statement { margin-top: 16px; }

.footer-brand .founder-credit {
  margin-top: 8px;
  font-size: 0.85rem;
  color: var(--text-faint);
}

/* ---------- 14d. Final CTA actions ---------- */

.final-cta-actions {
  display: flex;
  gap: 16px;
  justify-content: center;
  flex-wrap: wrap;
  margin-top: 40px;
}

/* ---------- 15. Final CTA ---------- */

.final-cta {
  position: relative;
  text-align: center;
  overflow: hidden;
  border-bottom: none;
}

#cta-canvas {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  opacity: 0.4;
}

.final-cta-inner { position: relative; z-index: 2; }

.final-cta--quiet { background: var(--surface); }

.final-cta-inner h2 {
  font-size: clamp(2.4rem, 5.5vw, 4rem);
  max-width: 16ch;
  margin: 0 auto;
}

.final-cta-inner p {
  margin-top: 20px;
  font-size: 1.15rem;
  color: var(--text-muted);
}

.final-cta-inner .btn { margin-top: 40px; }

/* ---------- 16. Contact (mailto CTA — no form) ---------- */

.contact-direct {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
  align-items: start;
}

.contact-email-card {
  border: 1px solid var(--border-strong);
  border-radius: 8px;
  padding: clamp(32px, 4vw, 48px);
  background: var(--surface);
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.contact-email-label {
  font-size: 0.82rem;
  color: var(--text-muted);
  letter-spacing: 0.04em;
}

.contact-email-link {
  font-size: clamp(1.4rem, 3vw, 2rem);
  font-weight: 600;
  color: var(--text);
  letter-spacing: -0.01em;
  word-break: break-word;
  transition: color var(--t-fast);
}
.contact-email-link:hover,
.contact-email-link:focus-visible { color: var(--accent); }

.contact-email-hint {
  font-size: 0.85rem;
  color: var(--text-faint);
}

.contact-secondary h2 { font-size: clamp(1.6rem, 3vw, 2.2rem); }
.contact-secondary p { margin-top: 16px; font-size: 1rem; max-width: 44ch; }

.contact-type-links {
  margin-top: 28px;
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.contact-type-links a {
  font-size: 0.85rem;
  color: var(--text);
  border: 1px solid var(--border-strong);
  border-radius: 100px;
  padding: 9px 16px;
  transition: border-color var(--t-fast), color var(--t-fast);
}
.contact-type-links a:hover,
.contact-type-links a:focus-visible { border-color: var(--accent); color: var(--accent); }

/* ---------- 17. Footer ---------- */

.footer { padding-top: 64px; }

.footer-inner {
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 32px;
  padding-bottom: 40px;
  border-bottom: 1px solid var(--border);
}

.footer-brand p { margin-top: 10px; font-size: 0.9rem; }

.footer-links, .footer-contact { display: flex; gap: 24px; }

.footer-links a, .footer-contact a {
  font-size: 0.9rem;
  color: var(--text-muted);
  transition: color var(--t-fast);
}
.footer-links a:hover, .footer-contact a:hover { color: var(--text); }

.footer-bottom {
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px;
  padding: 24px 0 40px;
  font-size: 0.85rem;
  color: var(--text-faint);
}

.status-line { display: flex; align-items: center; gap: 8px; letter-spacing: 0.04em; }

.status-dot {
  width: 6px; height: 6px;
  border-radius: 50%;
  background: var(--accent);
  animation: status-blink 2.4s ease-in-out infinite;
}

@keyframes status-blink {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.3; }
}

/* ---------- 18. Reveal ---------- */

.reveal {
  opacity: 0;
  transform: translateY(18px);
  transition: opacity 0.7s var(--ease), transform 0.7s var(--ease);
}
.reveal.in-view { opacity: 1; transform: translateY(0); }

/* ---------- 19. Magnetic buttons ---------- */

.magnetic { will-change: transform; }

/* ---------- 21b. Legal page prose ---------- */

.legal-content {
  max-width: 720px;
  margin: 0 auto;
  padding: clamp(140px, 16vw, 190px) var(--gutter) clamp(80px, 10vw, 120px);
}
.legal-content h1 { font-size: clamp(2rem, 4vw, 2.8rem); margin-bottom: 8px; }
.legal-content .legal-updated { color: var(--text-faint); font-size: 0.88rem; }
.legal-content h2 { font-size: 1.3rem; margin-top: 44px; margin-bottom: 14px; }
.legal-content p { font-size: 0.98rem; margin-bottom: 4px; }
.legal-content a { color: var(--accent); }
.legal-content .case-link { display: inline-flex; margin-top: 44px; }

/* ---------- 22. Multi-page nav / active state ---------- */

.nav-links a.active {
  color: var(--text);
  position: relative;
}
.nav-links a.active::after {
  content: "";
  position: absolute;
  left: 0; right: 0; bottom: -6px;
  height: 1px;
  background: var(--accent);
}
@media (max-width: 767px) {
  .nav-links a.active::after { display: none; }
  .nav-links a.active { color: var(--accent); }
}

/* ---------- 23. Page hero (sub-pages) ---------- */

.page-hero {
  padding: clamp(150px, 18vw, 210px) 0 clamp(56px, 8vw, 96px);
  border-bottom: 1px solid var(--border);
}

.page-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 0.82rem;
  color: var(--accent);
  letter-spacing: 0.06em;
  margin-bottom: 22px;
}

.page-hero h1 {
  font-size: clamp(2.4rem, 6vw, 4.4rem);
  max-width: 18ch;
}

.page-hero .page-lede {
  margin-top: 22px;
  font-size: clamp(1.05rem, 1.6vw, 1.25rem);
  color: var(--text-muted);
  max-width: 56ch;
}

/* ---------- 24. Visual "what we build" cards ---------- */

.build-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1px;
  background: var(--border);
  border: 1px solid var(--border);
}

.build-card {
  background: var(--bg);
  padding: 40px;
  display: flex;
  flex-direction: column;
  gap: 24px;
  transition: background var(--t-med);
}
.build-card:hover { background: var(--surface); }

.build-card h3 { font-size: 1.2rem; }
.build-card p { font-size: 0.94rem; max-width: 42ch; }

/* Mini vertical flow diagram used inside build cards */
.mini-flow {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 0;
}

.mini-flow-step {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 8px 14px;
  border: 1px solid var(--border-strong);
  border-radius: 4px;
  font-size: 0.78rem;
  letter-spacing: 0.03em;
  color: var(--text-muted);
  background: var(--surface);
}

.mini-flow-step.is-accent {
  border-color: var(--accent);
  color: var(--accent);
}

.mini-flow-arrow {
  height: 20px;
  width: 1px;
  background: var(--border-strong);
  margin-left: 20px;
  position: relative;
}
.mini-flow-arrow::after {
  content: "";
  position: absolute;
  bottom: -1px; left: -3px;
  width: 7px; height: 7px;
  border-right: 1px solid var(--border-strong);
  border-bottom: 1px solid var(--border-strong);
  transform: rotate(45deg);
}

/* ---------- 25. UI mockup windows (chat / document / dashboard) ---------- */

.mockup-caption {
  display: block;
  font-size: 0.78rem;
  color: var(--text-faint);
  letter-spacing: 0.03em;
  margin-top: 14px;
}

.mockup-window {
  border: 1px solid var(--border-strong);
  border-radius: 8px;
  background: var(--surface);
  overflow: hidden;
}

.mockup-bar {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 12px 16px;
  border-bottom: 1px solid var(--border);
  background: var(--surface-2);
}

.mockup-mark {
  width: 6px; height: 6px;
  background: var(--accent);
  flex-shrink: 0;
}

.mockup-title {
  font-size: 0.8rem;
  color: var(--text-muted);
  letter-spacing: 0.02em;
}

.mockup-status {
  margin-left: auto;
  font-size: 0.7rem;
  letter-spacing: 0.04em;
  color: var(--text-faint);
  text-transform: uppercase;
}

.mockup-body { padding: 22px; }

/* Chat mockup */
.mockup-chat-msg {
  max-width: 82%;
  margin-bottom: 16px;
  padding: 12px 16px;
  border-radius: 8px;
  font-size: 0.92rem;
  line-height: 1.5;
}
.mockup-chat-msg:last-child { margin-bottom: 0; }

.mockup-chat-msg .mockup-role {
  display: block;
  font-size: 0.72rem;
  letter-spacing: 0.05em;
  color: var(--text-faint);
  margin-bottom: 6px;
}

.mockup-chat-msg.is-user {
  background: var(--bg);
  border: 1px solid var(--border);
  color: var(--text);
  margin-left: auto;
}

.mockup-chat-msg.is-ai {
  background: var(--accent-soft);
  border: 1px solid rgba(79, 209, 232, 0.28);
  color: var(--text);
}

/* Document intelligence mockup */
.mockup-doc-file {
  font-size: 0.85rem;
  color: var(--text-muted);
  padding-bottom: 16px;
  margin-bottom: 16px;
  border-bottom: 1px dashed var(--border-strong);
}

.mockup-doc-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 10px 0;
  border-bottom: 1px solid var(--border);
  font-size: 0.9rem;
}
.mockup-doc-row:last-child { border-bottom: none; }

.mockup-doc-label { color: var(--text-muted); }
.mockup-doc-value { color: var(--text); font-weight: 500; }
.mockup-doc-value.is-accent { color: var(--accent); }

.mockup-pill {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 0.78rem;
  padding: 4px 10px;
  border-radius: 100px;
  background: var(--accent-soft);
  color: var(--accent);
}
.mockup-pill::before {
  content: "";
  width: 5px; height: 5px;
  border-radius: 50%;
  background: currentColor;
}
.mockup-pill.is-muted { background: var(--surface-2); color: var(--text-muted); }

/* Dashboard mockup */
.mockup-list-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 12px;
  padding: 12px 0;
  border-bottom: 1px solid var(--border);
  font-size: 0.88rem;
}
.mockup-list-row:last-child { border-bottom: none; }
.mockup-list-name { color: var(--text); }
.mockup-list-meta { color: var(--text-faint); font-size: 0.8rem; }

/* ---------- 26. Case study layout ---------- */

.case-study {
  border-top: 1px solid var(--border);
  padding: clamp(56px, 8vw, 96px) 0;
}
.case-study:first-of-type { border-top: none; }

.case-study-head {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  justify-content: space-between;
  gap: 16px;
  margin-bottom: 48px;
}

.case-study-head h2 { font-size: clamp(1.8rem, 3.4vw, 2.6rem); max-width: 24ch; }

.case-study-links { display: flex; gap: 14px; flex-wrap: wrap; }

.case-study-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
}

.case-study-steps { display: flex; flex-direction: column; gap: 32px; }

.case-step-num {
  display: block;
  font-size: 0.82rem;
  color: var(--accent);
  margin-bottom: 8px;
}

.case-step h4 { font-size: 1.05rem; margin-bottom: 8px; }
.case-step p { font-size: 0.94rem; max-width: 44ch; }

.case-study-visual { position: sticky; top: 110px; align-self: start; }

.proof-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 0.8rem;
  color: var(--text-muted);
  border: 1px solid var(--border-strong);
  border-radius: 100px;
  padding: 7px 14px 7px 10px;
}
.proof-badge svg { flex-shrink: 0; color: var(--text); }
.proof-badge strong { color: var(--text); font-weight: 500; }

.case-tech-tags { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 14px; }
.case-tech-tags span {
  font-size: 0.78rem;
  color: var(--text-muted);
  border: 1px solid var(--border);
  border-radius: 4px;
  padding: 6px 12px;
}

/* ---------- 27. Services page detail rows ---------- */

.service-detail {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
  align-items: center;
  padding: clamp(56px, 7vw, 88px) 0;
  border-top: 1px solid var(--border);
}
.service-detail:first-of-type { border-top: none; }
.service-detail.is-reverse .service-detail-copy { order: 2; }
.service-detail.is-reverse .service-detail-visual { order: 1; }

.service-detail-copy .service-num { display: block; margin-bottom: 18px; }
.service-detail-copy h3 { font-size: 1.7rem; margin-bottom: 16px; }
.service-detail-copy p { font-size: 1rem; max-width: 46ch; }

.service-use-cases {
  margin-top: 24px;
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.service-use-cases li {
  font-size: 0.9rem;
  color: var(--text-muted);
  padding-left: 20px;
  position: relative;
}
.service-use-cases li::before {
  content: "";
  position: absolute;
  left: 0; top: 9px;
  width: 8px; height: 1px;
  background: var(--accent);
}

.service-detail-copy .case-link { margin-top: 26px; display: inline-flex; }

/* ---------- 28. Technology / architecture diagram (vertical) ---------- */

.arch-vertical {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0;
  max-width: 420px;
  margin: 0 auto;
}

.arch-v-node {
  width: 100%;
  padding: 18px 24px;
  border: 1px solid var(--border-strong);
  border-radius: 6px;
  background: var(--surface);
  text-align: center;
}

.arch-v-node strong {
  display: block;
  font-size: 0.92rem;
  letter-spacing: 0.04em;
  color: var(--text);
}
.arch-v-node span {
  display: block;
  font-size: 0.8rem;
  color: var(--text-muted);
  margin-top: 4px;
}

.arch-v-node.is-accent { border-color: var(--accent); }
.arch-v-node.is-accent strong { color: var(--accent); }

.arch-v-connector {
  width: 1px;
  height: 28px;
  background: var(--border-strong);
  position: relative;
}
.arch-v-connector::after {
  content: "";
  position: absolute;
  bottom: -1px; left: -3.5px;
  width: 8px; height: 8px;
  border-right: 1px solid var(--border-strong);
  border-bottom: 1px solid var(--border-strong);
  transform: rotate(45deg);
}

/* ---------- 29. Section CTA link row (home teasers → full pages) ---------- */

.section-cta {
  margin-top: 48px;
  display: flex;
  justify-content: center;
}

.section-head-cta {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 24px;
}

/* ---------- 20. Responsive ---------- */

@media (max-width: 1023px) {
  .principle-list { grid-template-columns: 1fr; gap: 32px; }
  .hero-grid { grid-template-columns: 1fr; }
  .hero-visual { max-width: 320px; margin: 40px auto 0; }
  .section-head { grid-template-columns: 1fr; gap: 20px; }
  .service-row { grid-template-columns: 40px 1fr; }
  .service-visual, .service-arrow { display: none; }
  .tech-grid { grid-template-columns: repeat(2, 1fr); }
  .about-layout { grid-template-columns: 1fr; }
  .contact-direct { grid-template-columns: 1fr; }
  .timeline-step { grid-template-columns: 1fr; gap: 10px; }
  .build-grid { grid-template-columns: 1fr; }
  .case-study-grid { grid-template-columns: 1fr; }
  .case-study-visual { position: static; }
  .service-detail { grid-template-columns: 1fr; gap: 32px; }
  .service-detail.is-reverse .service-detail-copy,
  .service-detail.is-reverse .service-detail-visual { order: initial; }
  .section-head-cta { flex-direction: column; align-items: flex-start; }
}

@media (max-width: 767px) {
  .nav-links {
    position: fixed;
    top: 64px; left: 0; right: 0; bottom: 0;
    background: var(--bg);
    flex-direction: column;
    padding: 40px var(--gutter);
    gap: 28px;
    transform: translateX(100%);
    transition: transform var(--t-med);
  }
  .nav-links.open { transform: translateX(0); }
  .nav-links a { font-size: 1.1rem; }

  .menu-toggle { display: flex; }
  .nav-cta { display: none; }
  .logo img { height: 22px; }

  .capability-row li { padding: 0 16px; }
  .capability-row li:nth-child(3n+1) { padding-left: 0; }
}

/* ---------- 21. Reduced motion ---------- */

@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;
  }
  .reveal { opacity: 1; transform: none; }
  #cta-canvas { display: none; }
}