:root {
  --bg: #0c1018;
  --bg-elevated: #141c28;
  --bg-soft: #1a2434;
  --text: #eef1f6;
  --text-muted: #9aa8bc;
  --text-soft: rgba(238, 241, 246, 0.74);
  --accent: #c9a227;
  --accent-deep: #a8841a;
  --accent-glow: rgba(201, 162, 39, 0.22);
  --warm: #d4735c;
  --line: rgba(154, 168, 188, 0.16);
  --font-display: "Newsreader", Georgia, serif;
  --font-body: "Sora", system-ui, sans-serif;
  --space: clamp(1.25rem, 4vw, 2.5rem);
  --max: 68rem;
  --narrow: 40rem;
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-body);
  font-weight: 400;
  color: var(--text);
  background:
    radial-gradient(ellipse 80% 50% at 10% -10%, rgba(91, 143, 217, 0.12), transparent 55%),
    radial-gradient(ellipse 60% 40% at 100% 20%, rgba(201, 162, 39, 0.1), transparent 50%),
    linear-gradient(180deg, #080c12 0%, var(--bg) 40%, #0e1420 100%);
  background-attachment: fixed;
  line-height: 1.6;
  min-height: 100vh;
  overflow-x: hidden;
}

img,
video {
  display: block;
  max-width: 100%;
  height: auto;
}

a {
  color: var(--accent);
  text-decoration: none;
  transition: color 0.2s ease;
}

a:hover {
  color: #e4c55a;
}

/* Header */
.site-header {
  position: fixed;
  inset: 0 0 auto;
  z-index: 50;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 0.9rem var(--space);
  background: rgba(12, 16, 24, 0.72);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid transparent;
  transition: border-color 0.3s ease, background 0.3s ease;
}

.site-header.is-scrolled {
  border-bottom-color: var(--line);
  background: rgba(12, 16, 24, 0.9);
}

.brand {
  font-family: var(--font-display);
  font-size: 1.35rem;
  font-weight: 600;
  color: var(--text);
  letter-spacing: -0.02em;
}

.brand span {
  color: var(--accent);
}

.nav {
  display: flex;
  align-items: center;
  gap: clamp(0.75rem, 2vw, 1.5rem);
}

.nav a {
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--text-soft);
}

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

.nav-cta {
  padding: 0.45rem 0.9rem;
  border: 1px solid var(--line);
  border-radius: 0.35rem;
  color: var(--text) !important;
}

.nav-cta:hover {
  border-color: var(--accent);
  background: var(--accent-glow);
}

@media (max-width: 720px) {
  .nav a:not(.nav-cta) {
    display: none;
  }
}

/* Hero */
.hero {
  position: relative;
  min-height: 100vh;
  min-height: 100svh;
  display: flex;
  align-items: flex-end;
  padding: 7rem var(--space) 4rem;
  overflow: hidden;
}

.hero-media {
  position: absolute;
  inset: 0;
  z-index: 0;
}

.hero-collage {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  grid-template-rows: 1fr 1fr;
  width: 100%;
  height: 100%;
  gap: 0;
}

.hero-collage-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.hero-collage-cells {
  grid-column: 1;
  grid-row: 1 / 3;
  object-position: center 40%;
}

.hero-collage-snail {
  grid-column: 2;
  grid-row: 1;
  object-position: center 35%;
}

.hero-collage-beads {
  grid-column: 2;
  grid-row: 2;
  object-position: center 50%;
}

.hero-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: 55% 40%;
  transform: scale(1.04);
  animation: hero-drift 18s ease-in-out infinite alternate;
}

.hero-veil {
  position: absolute;
  inset: 0;
  background:
    linear-gradient(105deg, rgba(6, 10, 16, 0.92) 0%, rgba(6, 10, 16, 0.72) 42%, rgba(6, 10, 16, 0.35) 70%, rgba(6, 10, 16, 0.55) 100%),
    linear-gradient(to top, rgba(12, 16, 24, 0.95) 0%, transparent 45%);
}

.hero-content {
  position: relative;
  z-index: 1;
  max-width: 36rem;
  opacity: 0;
  transform: translateY(1.25rem);
  animation: hero-in 1s ease 0.2s forwards;
}

.hero-brand {
  font-family: var(--font-display);
  font-size: clamp(2.6rem, 8vw, 4.5rem);
  font-weight: 700;
  line-height: 1;
  letter-spacing: -0.03em;
  color: var(--text);
  margin-bottom: 1rem;
}

.hero-brand::after {
  content: "";
  display: inline-block;
  width: 0.55em;
  height: 0.12em;
  margin-left: 0.12em;
  vertical-align: 0.15em;
  background: var(--accent);
  border-radius: 1px;
}

.hero-title {
  font-family: var(--font-display);
  font-size: clamp(1.35rem, 3.2vw, 1.85rem);
  font-weight: 500;
  font-style: italic;
  line-height: 1.25;
  color: var(--text-soft);
  margin-bottom: 0.85rem;
}

.hero-lede {
  font-size: 1rem;
  color: var(--text-muted);
  margin-bottom: 1.75rem;
  max-width: 32rem;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
}

@keyframes hero-in {
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes hero-drift {
  to {
    transform: scale(1.08) translate(-1.5%, 1%);
  }
}

@media (prefers-reduced-motion: reduce) {
  .hero-img {
    animation: none;
  }
  .hero-content {
    animation: none;
    opacity: 1;
    transform: none;
  }
  html {
    scroll-behavior: auto;
  }
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.8rem 1.35rem;
  font-family: var(--font-body);
  font-size: 0.9rem;
  font-weight: 500;
  border-radius: 0.4rem;
  border: 1px solid transparent;
  cursor: pointer;
  transition: background 0.2s ease, border-color 0.2s ease, transform 0.15s ease;
}

.btn:active {
  transform: translateY(1px);
}

.btn-primary {
  background: var(--accent);
  color: #1a1408;
}

.btn-primary:hover {
  background: #dbb43a;
  color: #1a1408;
}

.btn-ghost {
  background: transparent;
  border-color: var(--line);
  color: var(--text);
}

.btn-ghost:hover {
  border-color: var(--accent);
  color: var(--accent);
  background: var(--accent-glow);
}

/* Sections */
.section {
  padding: clamp(4rem, 10vw, 7rem) var(--space);
}

.section-inner {
  max-width: var(--max);
  margin: 0 auto;
}

.section-inner.narrow {
  max-width: var(--narrow);
}

.eyebrow {
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 0.85rem;
}

.section h2 {
  font-family: var(--font-display);
  font-size: clamp(1.75rem, 4vw, 2.6rem);
  font-weight: 600;
  line-height: 1.15;
  letter-spacing: -0.02em;
  margin-bottom: 1rem;
}

.section-lede {
  font-size: 1.05rem;
  color: var(--text-muted);
  max-width: 40rem;
  margin-bottom: 2.5rem;
}

.problem {
  background: linear-gradient(180deg, transparent, rgba(18, 32, 38, 0.65));
}


.pillars {
  list-style: none;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0;
  border-top: 1px solid var(--line);
}

.pillars li {
  padding: 1.75rem 1.5rem 1.75rem 0;
  border-bottom: 1px solid var(--line);
}

.pillars li:not(:first-child) {
  padding-left: 1.5rem;
  border-left: 1px solid var(--line);
}

.pillar-label {
  display: block;
  font-family: var(--font-display);
  font-size: 1.35rem;
  font-weight: 600;
  margin-bottom: 0.45rem;
}

.pillar-desc {
  display: block;
  font-size: 0.95rem;
  color: var(--text-muted);
}

@media (max-width: 720px) {
  .pillars {
    grid-template-columns: 1fr;
  }
  .pillars li:not(:first-child) {
    padding-left: 0;
    border-left: none;
  }
}

.markets {
  background: rgba(20, 28, 40, 0.45);
}

.pittsburgh {
  margin-top: 2.5rem;
  padding: 1.5rem 1.75rem;
  border-left: 3px solid var(--accent);
  background: rgba(201, 162, 39, 0.06);
  border-radius: 0 0.35rem 0.35rem 0;
}

.pittsburgh-label {
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 0.6rem;
}

.pittsburgh-text {
  font-size: 0.98rem;
  color: var(--text-soft);
  line-height: 1.65;
}
/* Use cases — not cards: hairline separators */
.use-cases {
  list-style: none;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0;
  border-top: 1px solid var(--line);
}

.use-cases li {
  display: flex;
  flex-direction: column;
  gap: 0.85rem;
  padding: 1.25rem 1.25rem 1.5rem 0;
  border-bottom: 1px solid var(--line);
}

.use-cases li.use-case-featured {
  grid-column: 1 / -1;
  flex-direction: row;
  align-items: center;
  padding: 1.5rem 0 1.75rem;
  border-bottom: 1px solid var(--line);
  border-left: none !important;
  padding-left: 0 !important;
}

.use-thumb {
  width: 100%;
  aspect-ratio: 16 / 10;
  object-fit: cover;
  border-radius: 0.2rem;
  border: 1px solid var(--line);
}

.use-case-featured .use-thumb {
  width: min(42%, 280px);
  flex-shrink: 0;
  aspect-ratio: 4 / 3;
}

.use-text {
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
}

.use-cases li:not(:nth-child(3n + 1)):not(.use-case-featured) {
  padding-left: 1.25rem;
  border-left: 1px solid var(--line);
}

.use-label {
  display: block;
  font-family: var(--font-display);
  font-size: 1.25rem;
  font-weight: 600;
  margin-bottom: 0.4rem;
}

.use-desc {
  display: block;
  font-size: 0.95rem;
  color: var(--text-muted);
}

@media (max-width: 900px) {
  .use-cases {
    grid-template-columns: repeat(2, 1fr);
  }
  .use-cases li.use-case-featured {
    grid-column: 1 / -1;
    flex-direction: column;
    align-items: stretch;
  }
  .use-case-featured .use-thumb {
    width: 100%;
  }
  .use-cases li:not(.use-case-featured) {
    border-left: none !important;
    padding-left: 0 !important;
  }
  .use-cases li:not(.use-case-featured):nth-child(even) {
    padding-left: 1.25rem !important;
    border-left: 1px solid var(--line) !important;
  }
}

@media (max-width: 560px) {
  .use-cases {
    grid-template-columns: 1fr;
  }
  .use-cases li:not(.use-case-featured):nth-child(even) {
    padding-left: 0 !important;
    border-left: none !important;
  }
  .hero-collage {
    grid-template-columns: 1fr;
    grid-template-rows: 1fr 0.45fr 0.45fr;
  }
  .hero-collage-cells {
    grid-column: 1;
    grid-row: 1;
  }
  .hero-collage-snail {
    grid-column: 1;
    grid-row: 2;
  }
  .hero-collage-beads {
    grid-column: 1;
    grid-row: 3;
  }
}

/* Workflow */
.workflow {
  list-style: none;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1.5rem;
  margin-bottom: 3rem;
  counter-reset: none;
}

.workflow li {
  position: relative;
  padding-top: 0.25rem;
}

.workflow li:not(:last-child)::after {
  content: "";
  position: absolute;
  top: 1.1rem;
  left: calc(100% - 0.5rem);
  width: 1.5rem;
  height: 1px;
  background: var(--line);
}

.step-num {
  display: block;
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  color: var(--accent);
  margin-bottom: 0.6rem;
}

.workflow h3 {
  font-family: var(--font-display);
  font-size: 1.15rem;
  font-weight: 600;
  margin-bottom: 0.4rem;
}

.workflow p {
  font-size: 0.9rem;
  color: var(--text-muted);
}

@media (max-width: 800px) {
  .workflow {
    grid-template-columns: 1fr 1fr;
  }
  .workflow li:not(:last-child)::after {
    display: none;
  }
}

@media (max-width: 480px) {
  .workflow {
    grid-template-columns: 1fr;
  }
}

.pipeline-figure,
.cv-figure {
  margin-top: 2rem;
}

.pipeline-figure img,
.pipeline-figure object,
.cv-figure img,
.proven-img {
  width: 100%;
  border-radius: 0.25rem;
  border: 1px solid var(--line);
}

.pipeline-figure figcaption,
.cv-figure figcaption,
.video-caption {
  margin-top: 0.75rem;
  font-size: 0.85rem;
  color: var(--text-muted);
}

/* Proven */
.proven {
  background: rgba(14, 20, 32, 0.7);
}

.proven-grid {
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  gap: 1.75rem;
  margin-bottom: 2rem;
  align-items: start;
}

.proven-video video {
  width: 100%;
  border-radius: 0.25rem;
  border: 1px solid var(--line);
  background: #000;
}

.metrics {
  list-style: none;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem 1.25rem;
  margin-bottom: 1.25rem;
}

.metrics li {
  display: flex;
  flex-direction: column;
  gap: 0.2rem;
}

.metrics strong {
  font-family: var(--font-display);
  font-size: 1.2rem;
  font-weight: 600;
  color: var(--text);
}

.metrics span {
  font-size: 0.8rem;
  color: var(--text-muted);
}

@media (max-width: 800px) {
  .proven-grid {
    grid-template-columns: 1fr;
  }
}

/* Interest form */
.interest {
  background:
    radial-gradient(ellipse 50% 40% at 50% 0%, rgba(201, 162, 39, 0.08), transparent 60%),
    transparent;
}

.interest-form {
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
}

.field {
  display: flex;
  flex-direction: column;
  gap: 0.45rem;
}

.field label,
.field legend {
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--text-soft);
}

.optional {
  font-weight: 400;
  color: var(--text-muted);
}

.field input,
.field textarea {
  font-family: var(--font-body);
  font-size: 1rem;
  color: var(--text);
  background: var(--bg-elevated);
  border: 1px solid var(--line);
  border-radius: 0.35rem;
  padding: 0.75rem 0.9rem;
  transition: border-color 0.2s ease, box-shadow 0.2s ease;
}

.field input:focus,
.field textarea:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-glow);
}

.field textarea {
  resize: vertical;
  min-height: 8rem;
}

.checks {
  border: none;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.65rem;
}

.checks legend {
  margin-bottom: 0.5rem;
}

.check {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.9rem;
  color: var(--text-soft);
  cursor: pointer;
}

.check input {
  accent-color: var(--accent);
  width: 1rem;
  height: 1rem;
}

@media (max-width: 480px) {
  .checks {
    grid-template-columns: 1fr;
  }
}

.interest-form .btn-primary {
  align-self: flex-start;
  margin-top: 0.25rem;
}

.interest-form .btn-primary:disabled {
  opacity: 0.65;
  cursor: wait;
}

.form-status {
  min-height: 1.4em;
  font-size: 0.9rem;
  color: var(--text-muted);
}

.form-status.is-success {
  color: var(--accent);
}

.form-status.is-error {
  color: var(--warm);
}

.form-status.is-setup {
  color: #c4a86a;
}

/* Footer */
.site-footer {
  padding: 3rem var(--space) 4rem;
  border-top: 1px solid var(--line);
  text-align: center;
}

.footer-brand {
  font-family: var(--font-display);
  font-size: 1.5rem;
  font-weight: 600;
  margin-bottom: 0.35rem;
}

.footer-note {
  font-size: 0.9rem;
  color: var(--text-muted);
  margin-bottom: 1rem;
}

.footer-link a {
  font-size: 0.85rem;
  color: var(--text-soft);
}

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

.footer-credits {
  margin-top: 0.75rem;
  font-size: 0.75rem;
  color: var(--text-muted);
  opacity: 0.75;
}

.footer-credits a {
  color: var(--text-muted);
}

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

/* Scroll reveal */
.reveal {
  opacity: 0;
  transform: translateY(1.5rem);
  transition: opacity 0.7s ease, transform 0.7s ease;
}

.reveal.is-visible {
  opacity: 1;
  transform: translateY(0);
}

@media (prefers-reduced-motion: reduce) {
  .reveal {
    opacity: 1;
    transform: none;
    transition: none;
  }
}