/* Orac78 — frontier studio site */
:root {
  --bg: #182338;
  --bg-elev: #1f2b45;
  --bg-card: rgba(32, 44, 68, 0.72);
  --ink: #e8eef9;
  --muted: #8b9bb8;
  --faint: #5a6a86;
  --cyan: #22d3ee;
  --cyan-dim: rgba(34, 211, 238, 0.14);
  --teal: #2dd4bf;
  --violet: #a78bfa;
  --violet-dim: rgba(167, 139, 250, 0.16);
  --line: rgba(148, 163, 184, 0.14);
  --line-strong: rgba(34, 211, 238, 0.35);
  --glow-cyan: 0 0 40px rgba(34, 211, 238, 0.25);
  --glow-violet: 0 0 48px rgba(167, 139, 250, 0.2);
  --radius: 18px;
  --nav-h: 72px;
  --font: "Inter", "Segoe UI", system-ui, -apple-system, sans-serif;
  --display: "Inter", "Segoe UI", system-ui, -apple-system, sans-serif;
  --ease: cubic-bezier(0.22, 1, 0.36, 1);
}

@font-face {
  font-family: "Inter";
  font-style: normal;
  font-weight: 400 700;
  font-display: swap;
  src: local("Inter"), local("Segoe UI"), local("Helvetica Neue");
}

*, *::before, *::after { box-sizing: border-box; }
html {
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}
@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;
  }
  .orb { display: none !important; }
}

body {
  margin: 0;
  font-family: var(--font);
  background: var(--bg);
  color: var(--ink);
  line-height: 1.6;
  min-height: 100vh;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

img, svg { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }
button { font: inherit; cursor: pointer; border: none; background: none; color: inherit; }

.wrap {
  width: min(1120px, calc(100% - 2.5rem));
  margin-inline: auto;
}

/* ——— Nav ——— */
.nav {
  position: sticky;
  top: 0;
  z-index: 50;
  height: var(--nav-h);
  display: flex;
  align-items: center;
  backdrop-filter: blur(18px) saturate(1.2);
  -webkit-backdrop-filter: blur(18px) saturate(1.2);
  background: rgba(24, 35, 56, 0.8);
  border-bottom: 1px solid transparent;
  transition: border-color 0.3s var(--ease), background 0.3s var(--ease);
}
.nav.scrolled {
  border-bottom-color: var(--line);
  background: rgba(24, 35, 56, 0.94);
}
.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  width: min(1120px, calc(100% - 2.5rem));
  margin-inline: auto;
}
.brand {
  display: flex;
  align-items: center;
  gap: 0.7rem;
  font-weight: 650;
  letter-spacing: -0.02em;
  font-size: 1.05rem;
}
.brand svg { width: 28px; height: 28px; flex-shrink: 0; }
.brand-name span { color: var(--cyan); }

.nav-links {
  display: none;
  align-items: center;
  gap: 1.75rem;
  list-style: none;
  margin: 0;
  padding: 0;
}
.nav-links a {
  font-size: 0.9rem;
  color: var(--muted);
  transition: color 0.2s;
}
.nav-links a:hover { color: var(--ink); }

.nav-cta {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.5rem 0.95rem;
  border-radius: 999px;
  font-size: 0.85rem;
  font-weight: 560;
  color: var(--bg);
  background: linear-gradient(135deg, var(--cyan), #67e8f9);
  box-shadow: var(--glow-cyan);
  transition: transform 0.2s var(--ease), filter 0.2s;
}
.nav-cta:hover { transform: translateY(-1px); filter: brightness(1.05); }

.nav-toggle {
  display: flex;
  flex-direction: column;
  gap: 5px;
  padding: 0.4rem;
  width: 40px;
  height: 40px;
  align-items: center;
  justify-content: center;
}
.nav-toggle span {
  display: block;
  width: 18px;
  height: 1.5px;
  background: var(--ink);
  border-radius: 2px;
  transition: transform 0.25s var(--ease), opacity 0.2s;
}
.nav.open .nav-toggle span:nth-child(1) { transform: translateY(6.5px) rotate(45deg); }
.nav.open .nav-toggle span:nth-child(2) { opacity: 0; }
.nav.open .nav-toggle span:nth-child(3) { transform: translateY(-6.5px) rotate(-45deg); }

.nav-mobile {
  display: none;
  position: absolute;
  top: var(--nav-h);
  left: 0;
  right: 0;
  background: rgba(24, 35, 56, 0.98);
  backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--line);
  padding: 1rem 1.25rem 1.5rem;
  flex-direction: column;
  gap: 0.25rem;
}
.nav.open .nav-mobile { display: flex; }
.nav-mobile a {
  padding: 0.85rem 0.5rem;
  color: var(--muted);
  border-bottom: 1px solid var(--line);
  font-size: 1rem;
}
.nav-mobile a:last-child { border-bottom: none; color: var(--cyan); }

@media (min-width: 860px) {
  .nav-links { display: flex; }
  .nav-toggle { display: none; }
  .nav-mobile { display: none !important; }
}

/* ——— Hero ——— */
.hero {
  position: relative;
  min-height: calc(100vh - var(--nav-h));
  display: flex;
  align-items: center;
  padding: 4rem 0 5rem;
  overflow: hidden;
}
.hero-bg {
  position: absolute;
  inset: 0;
  pointer-events: none;
  z-index: 0;
  overflow: hidden;
  background-color: var(--bg);
  background-image: url("hero-brain.png?v=20260928brief");
  background-repeat: no-repeat;
  background-position: 78% center;
  background-size: cover;
}
.hero-scrim {
  position: absolute;
  inset: 0;
  background:
    linear-gradient(90deg, rgba(24, 35, 56, 0.96) 0%, rgba(24, 35, 56, 0.88) 22%, rgba(24, 35, 56, 0.55) 42%, rgba(24, 35, 56, 0.18) 62%, transparent 82%),
    linear-gradient(180deg, rgba(24, 35, 56, 0.45) 0%, transparent 18%, transparent 80%, rgba(24, 35, 56, 0.65) 100%);
}
.orb {
  position: absolute;
  border-radius: 50%;
  filter: blur(80px);
  animation: drift 18s ease-in-out infinite alternate;
  opacity: 0.55;
}
.orb-1 {
  width: 420px; height: 420px;
  top: -8%; left: 8%;
  background: radial-gradient(circle, rgba(34, 211, 238, 0.28), transparent 70%);
}
.orb-2 {
  width: 380px; height: 380px;
  top: 18%; right: -4%;
  background: radial-gradient(circle, rgba(167, 139, 250, 0.22), transparent 70%);
  animation-delay: -6s;
  animation-duration: 22s;
}
@keyframes drift {
  from { transform: translate(0, 0) scale(1); }
  to { transform: translate(40px, -30px) scale(1.08); }
}

.hero-content {
  position: relative;
  z-index: 1;
  width: min(32.5rem, calc(100% - 2.5rem));
  max-width: 32.5rem;
  margin-left: max(1.25rem, calc((100% - min(1120px, calc(100% - 2.5rem))) / 2));
  margin-right: auto;
  text-align: left;
  align-self: center;
}
@media (max-width: 768px) {
  .hero-bg {
    background-image: none;
  }
  .hero-scrim {
    background: rgba(24, 35, 56, 0.98);
  }
}
@media (min-width: 769px) and (max-width: 860px) {
  .hero-bg {
    background-position: 90% center;
  }
  .hero-scrim {
    background:
      linear-gradient(180deg, rgba(24, 35, 56, 0.55) 0%, rgba(24, 35, 56, 0.82) 42%, rgba(24, 35, 56, 0.94) 100%),
      linear-gradient(90deg, rgba(24, 35, 56, 0.85) 0%, transparent 75%);
  }
}
.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.35rem 0.75rem;
  border-radius: 999px;
  border: 1px solid var(--line);
  background: rgba(14, 20, 36, 0.5);
  color: var(--muted);
  font-size: 0.78rem;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  margin-bottom: 1.5rem;
}
.eyebrow-dot {
  width: 6px; height: 6px;
  border-radius: 50%;
  background: var(--cyan);
  box-shadow: 0 0 10px var(--cyan);
  animation: pulse 2.4s ease-in-out infinite;
}
@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.4; }
}

.wordmark {
  font-family: var(--display);
  font-size: clamp(3.2rem, 10vw, 6.5rem);
  font-weight: 700;
  letter-spacing: -0.045em;
  line-height: 0.95;
  margin: 0 0 1.25rem;
  background: linear-gradient(135deg, #f0f7ff 0%, #a5f3fc 45%, #c4b5fd 100%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.tagline {
  font-size: clamp(1.15rem, 2.4vw, 1.45rem);
  font-weight: 500;
  letter-spacing: -0.02em;
  line-height: 1.35;
  color: var(--ink);
  max-width: 36ch;
  margin: 0 0 1rem;
}
.support {
  font-size: 1.02rem;
  color: var(--muted);
  max-width: 42ch;
  margin: 0 0 2.25rem;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.85rem;
  align-items: center;
}
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.45rem;
  padding: 0.85rem 1.35rem;
  border-radius: 999px;
  font-size: 0.95rem;
  font-weight: 560;
  transition: transform 0.2s var(--ease), background 0.2s, border-color 0.2s, box-shadow 0.2s;
}
.btn-primary {
  background: linear-gradient(135deg, var(--cyan), #67e8f9 60%, #a5f3fc);
  color: #041016;
  box-shadow: var(--glow-cyan);
}
.btn-primary:hover { transform: translateY(-2px); filter: brightness(1.04); }
.btn-ghost {
  border: 1px solid var(--line);
  background: rgba(14, 20, 36, 0.4);
  color: var(--ink);
  backdrop-filter: blur(8px);
}
.btn-ghost:hover {
  border-color: var(--line-strong);
  background: var(--cyan-dim);
  transform: translateY(-2px);
}

.hero-meta {
  margin-top: 3rem;
  display: flex;
  flex-wrap: wrap;
  gap: 1.5rem 2.5rem;
  padding-top: 1.75rem;
  border-top: 1px solid var(--line);
}
.hero-meta dt {
  font-size: 0.72rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--faint);
  margin: 0 0 0.25rem;
}
.hero-meta dd {
  margin: 0;
  font-size: 0.95rem;
  color: var(--muted);
  font-weight: 500;
}

.hero-proof {
  margin: 1.25rem 0 0;
  font-size: 0.88rem;
}
.hero-proof a {
  color: var(--cyan);
  border-bottom: 1px solid rgba(34, 211, 238, 0.35);
  transition: color 0.2s, border-color 0.2s;
}
.hero-proof a:hover {
  color: #a5f3fc;
  border-bottom-color: rgba(165, 243, 252, 0.55);
}

/* ——— Sections ——— */
section {
  padding: 5.5rem 0;
  position: relative;
}
.section-label {
  display: inline-block;
  font-size: 0.75rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--cyan);
  margin-bottom: 0.85rem;
  font-weight: 560;
}
.section-title {
  font-size: clamp(1.85rem, 4vw, 2.75rem);
  font-weight: 650;
  letter-spacing: -0.035em;
  line-height: 1.15;
  margin: 0 0 1rem;
  max-width: 18ch;
}
.section-lead {
  color: var(--muted);
  font-size: 1.05rem;
  max-width: 52ch;
  margin: 0 0 2.75rem;
}

/* ——— Capabilities ——— */
#capabilities {
  background:
    radial-gradient(ellipse 50% 40% at 80% 0%, rgba(167, 139, 250, 0.08), transparent),
    var(--bg);
}
.cards {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1rem;
}
@media (min-width: 640px) {
  .cards { grid-template-columns: 1fr 1fr; }
}
@media (min-width: 960px) {
  .cards { grid-template-columns: repeat(4, 1fr); gap: 1.1rem; }
}

.card {
  position: relative;
  padding: 1.5rem 1.35rem 1.6rem;
  border-radius: var(--radius);
  background: var(--bg-card);
  border: 1px solid var(--line);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  overflow: hidden;
  transition: border-color 0.3s var(--ease), box-shadow 0.3s var(--ease), transform 0.3s var(--ease);
}
.card::before {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(145deg, rgba(34, 211, 238, 0.08), transparent 45%);
  opacity: 0;
  transition: opacity 0.3s;
  pointer-events: none;
}
.card:hover {
  border-color: var(--line-strong);
  box-shadow: var(--glow-cyan), 0 12px 40px rgba(0, 0, 0, 0.35);
  transform: translateY(-3px);
}
.card:hover::before { opacity: 1; }
.card-icon {
  width: 40px; height: 40px;
  border-radius: 11px;
  display: grid;
  place-items: center;
  margin-bottom: 1.15rem;
  background: var(--cyan-dim);
  border: 1px solid rgba(34, 211, 238, 0.25);
  color: var(--cyan);
}
.card:nth-child(2) .card-icon {
  background: var(--violet-dim);
  border-color: rgba(167, 139, 250, 0.3);
  color: var(--violet);
}
.card:nth-child(3) .card-icon {
  background: rgba(45, 212, 191, 0.12);
  border-color: rgba(45, 212, 191, 0.3);
  color: var(--teal);
}
.card:nth-child(4) .card-icon {
  background: rgba(251, 191, 36, 0.1);
  border-color: rgba(251, 191, 36, 0.25);
  color: #fbbf24;
}
.card h3 {
  margin: 0 0 0.55rem;
  font-size: 1.05rem;
  font-weight: 600;
  letter-spacing: -0.02em;
}
.card p {
  margin: 0;
  font-size: 0.9rem;
  color: var(--muted);
  line-height: 1.55;
}

/* ——— Ventures ——— */
#ventures {
  background:
    radial-gradient(ellipse 45% 50% at 15% 20%, rgba(34, 211, 238, 0.07), transparent),
    var(--bg-elev);
  border-block: 1px solid var(--line);
}
.venture-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.25rem;
}
@media (min-width: 800px) {
  .venture-grid {
    grid-template-columns: 1fr 1fr;
    gap: 1.5rem;
  }
}
.venture-card {
  display: flex;
  flex-direction: column;
  padding: 1.75rem 1.5rem 1.6rem;
  border-radius: var(--radius);
  background: var(--bg-card);
  border: 1px solid var(--line);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  transition: border-color 0.3s var(--ease), box-shadow 0.3s var(--ease), transform 0.3s var(--ease);
}
.venture-card:hover {
  border-color: var(--line-strong);
  box-shadow: var(--glow-cyan), 0 12px 40px rgba(0, 0, 0, 0.3);
  transform: translateY(-2px);
}
.venture-badges {
  display: flex;
  flex-wrap: wrap;
  gap: 0.45rem;
  margin-bottom: 1rem;
}
.badge {
  display: inline-flex;
  align-items: center;
  font-size: 0.72rem;
  font-weight: 560;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  padding: 0.32rem 0.7rem;
  border-radius: 999px;
  border: 1px solid rgba(34, 211, 238, 0.35);
  background: var(--cyan-dim);
  color: var(--cyan);
}
.badge-muted {
  border-color: var(--line);
  background: rgba(14, 20, 36, 0.45);
  color: var(--muted);
}
.badge-live {
  border-color: rgba(45, 212, 191, 0.4);
  background: rgba(45, 212, 191, 0.12);
  color: var(--teal);
}
.venture-card h3 {
  margin: 0 0 0.75rem;
  font-size: 1.35rem;
  font-weight: 650;
  letter-spacing: -0.025em;
}
.venture-card > p {
  margin: 0 0 1rem;
  color: var(--muted);
  font-size: 0.95rem;
  line-height: 1.55;
}
.venture-meta {
  list-style: none;
  margin: 0 0 1rem;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
}
.venture-meta li {
  font-size: 0.88rem;
  color: var(--muted);
}
.venture-meta strong {
  color: var(--ink);
  font-weight: 560;
}
.venture-note {
  font-size: 0.88rem !important;
  color: var(--faint) !important;
  margin-bottom: 1.25rem !important;
}
.venture-cta {
  margin-top: auto;
  align-self: flex-start;
  padding: 0.7rem 1.15rem;
  font-size: 0.9rem;
}

/* ——— Approach ——— */
#approach {
  background:
    radial-gradient(ellipse 40% 50% at 10% 50%, rgba(34, 211, 238, 0.06), transparent),
    var(--bg);
}
.steps {
  display: grid;
  gap: 1.25rem;
  counter-reset: step;
}
@media (min-width: 800px) {
  .steps {
    grid-template-columns: repeat(3, 1fr);
    gap: 1.5rem;
  }
}
.step {
  position: relative;
  padding: 1.75rem 1.5rem;
  border-radius: var(--radius);
  border: 1px solid var(--line);
  background: rgba(24, 35, 56, 0.55);
  counter-increment: step;
}
.step::before {
  content: counter(step, decimal-leading-zero);
  display: block;
  font-size: 0.8rem;
  font-weight: 650;
  letter-spacing: 0.08em;
  color: var(--cyan);
  margin-bottom: 1.1rem;
  font-variant-numeric: tabular-nums;
}
.step h3 {
  margin: 0 0 0.6rem;
  font-size: 1.2rem;
  letter-spacing: -0.025em;
}
.step p {
  margin: 0;
  color: var(--muted);
  font-size: 0.95rem;
}

/* ——— About ——— */
#about .about-grid {
  display: grid;
  gap: 2.5rem;
}
@media (min-width: 840px) {
  #about .about-grid {
    grid-template-columns: 1.35fr 0.85fr;
    gap: 3.5rem;
    align-items: start;
  }
}
.about-body p {
  color: var(--muted);
  font-size: 1.05rem;
  margin: 0 0 1.15rem;
  max-width: 58ch;
}
.about-body p:last-child { margin-bottom: 0; }

.founders {
  display: flex;
  flex-direction: column;
  gap: 0.85rem;
}
.founder {
  display: flex;
  gap: 1rem;
  align-items: flex-start;
  padding: 1.15rem 1.25rem;
  border-radius: 14px;
  border: 1px solid var(--line);
  background: var(--bg-card);
  backdrop-filter: blur(10px);
}
.founder-avatar {
  flex-shrink: 0;
  width: 44px;
  height: 44px;
  border-radius: 50%;
  display: grid;
  place-items: center;
  font-size: 0.78rem;
  font-weight: 650;
  letter-spacing: 0.04em;
  color: var(--bg);
  background: linear-gradient(135deg, var(--cyan), var(--violet));
}
.founder-text { min-width: 0; }
.founder-role {
  font-size: 0.72rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--faint);
  margin-bottom: 0.25rem;
}
.founder-name {
  font-size: 1.05rem;
  font-weight: 600;
  letter-spacing: -0.02em;
  margin-bottom: 0.4rem;
}
.founder-bio {
  margin: 0;
  font-size: 0.85rem;
  color: var(--muted);
  line-height: 1.5;
}

.pill-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-top: 1.75rem;
}
.pill {
  font-size: 0.78rem;
  padding: 0.4rem 0.75rem;
  border-radius: 999px;
  border: 1px solid var(--line);
  color: var(--muted);
  background: rgba(14, 20, 36, 0.4);
}

/* ——— Contact ——— */
#contact {
  padding-bottom: 6rem;
}
.contact-panel {
  position: relative;
  padding: clamp(2rem, 5vw, 3.25rem);
  border-radius: 24px;
  border: 1px solid var(--line);
  background:
    linear-gradient(145deg, rgba(34, 211, 238, 0.08), rgba(167, 139, 250, 0.06) 50%, transparent),
    rgba(11, 16, 32, 0.7);
  overflow: hidden;
  display: grid;
  gap: 1.75rem;
}
@media (min-width: 720px) {
  .contact-panel {
    grid-template-columns: 1.4fr auto;
    align-items: center;
  }
}
.contact-panel h2 {
  margin: 0 0 0.6rem;
  font-size: clamp(1.6rem, 3.5vw, 2.2rem);
  letter-spacing: -0.03em;
}
.contact-panel p {
  margin: 0;
  color: var(--muted);
  max-width: 42ch;
}
.contact-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
}

/* ——— Footer ——— */
.footer {
  border-top: 1px solid var(--line);
  padding: 2rem 0 2.5rem;
}
.footer-inner {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  justify-content: space-between;
  align-items: center;
  color: var(--faint);
  font-size: 0.85rem;
}
.footer a {
  color: var(--muted);
  transition: color 0.2s;
}
.footer a:hover { color: var(--cyan); }
.footer-copy { display: flex; flex-direction: column; gap: 0.25rem; }
.footer-address {
  font-size: 0.8rem;
  color: var(--faint);
  max-width: 36ch;
  line-height: 1.4;
}
.footer-links {
  display: flex;
  gap: 1.25rem;
  align-items: center;
}

/* reveal — visible by default for crawlers / no-JS; fade only when JS adds reveal-ready */
.reveal {
  opacity: 1;
  transform: none;
}
.reveal-ready .reveal {
  opacity: 0;
  transform: translateY(18px);
  transition: opacity 0.7s var(--ease), transform 0.7s var(--ease);
}
.reveal-ready .reveal.visible {
  opacity: 1;
  transform: none;
}
@media (prefers-reduced-motion: reduce) {
  .reveal,
  .reveal-ready .reveal {
    opacity: 1;
    transform: none;
    transition: none;
  }
}