:root {
  --bg: #151718;
  --surface: #171a1b;
  --surface-raised: #1e2121;
  --surface-soft: #111516;
  --line: #303435;
  --line-bright: #484d4e;
  --text: #a8adb0;
  --strong: #e4e4e7;
  --heading: #fafafa;
  --muted: #71717a;
  --amber: #fbbf24;
  --amber-bright: #fcd34d;
  --cyan: #98a78f;
  --python: #ffd43b;
  --display: "Space Grotesk", ui-sans-serif, system-ui, sans-serif;
  --body: "Source Sans 3", ui-sans-serif, system-ui, sans-serif;
  --mono: "JetBrains Mono", ui-monospace, "SFMono-Regular", Menlo, monospace;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  background: var(--bg);
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: var(--body);
  font-size: 1rem;
  line-height: 1.65;
}

body::before {
  position: fixed;
  inset: 0;
  z-index: -2;
  background:
    radial-gradient(circle at 78% 2%, rgba(152, 167, 143, 0.15), transparent 29rem),
    linear-gradient(rgba(161, 161, 170, 0.028) 1px, transparent 1px),
    linear-gradient(90deg, rgba(161, 161, 170, 0.028) 1px, transparent 1px);
  background-size: auto, 32px 32px, 32px 32px;
  content: "";
}

a {
  color: inherit;
}

button,
a {
  -webkit-tap-highlight-color: transparent;
}

::selection {
  color: #1a1307;
  background: var(--amber);
}

.site-shell {
  min-height: 100vh;
  overflow: hidden;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 40;
  display: flex;
  min-height: 4.6rem;
  align-items: center;
  justify-content: space-between;
  gap: 2rem;
  border-bottom: 1px solid rgba(63, 63, 70, 0.82);
  background: rgba(21, 23, 24, 0.9);
  padding: 0 2rem;
  backdrop-filter: blur(18px);
}

.brand {
  display: grid;
  grid-template-columns: 2.25rem auto;
  align-items: center;
  column-gap: 0.7rem;
  color: var(--heading);
  text-decoration: none;
}

.brand img {
  grid-row: span 2;
  width: 2.25rem;
  height: 2.25rem;
  object-fit: contain;
}

.brand-word {
  font-family: var(--display);
  font-size: 0.95rem;
  font-weight: 700;
  letter-spacing: 0.05em;
}

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

.brand-note {
  color: var(--muted);
  font-family: var(--mono);
  font-size: 0.55rem;
  letter-spacing: 0.16em;
  line-height: 1;
  text-transform: uppercase;
}

.site-header nav {
  display: flex;
  align-items: center;
  gap: clamp(1.1rem, 3vw, 2rem);
  font-family: var(--mono);
  font-size: 0.63rem;
  letter-spacing: 0.13em;
  text-transform: uppercase;
}

.site-header nav a {
  color: var(--muted);
  text-decoration: none;
  transition: color 160ms ease;
}

.site-header nav a:hover,
.site-header nav a:focus-visible {
  color: var(--strong);
}

main {
  width: min(100% - 2.5rem, 88rem);
  margin: 0 auto;
}

.hero {
  position: relative;
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(16rem, 21rem);
  min-height: calc(100vh - 7.6rem);
  align-items: flex-end;
  gap: clamp(2.5rem, 7vw, 7rem);
  margin-top: 2rem;
  overflow: hidden;
  border-block: 1px solid var(--line-bright);
  background:
    linear-gradient(112deg, rgba(23, 26, 27, 0.98), rgba(17, 21, 22, 0.9)),
    var(--surface);
  padding: clamp(4rem, 8vw, 7.5rem) clamp(1.5rem, 6vw, 5rem);
  isolation: isolate;
}

.hero::before {
  position: absolute;
  inset: 0 auto 0 0;
  width: 3px;
  background: var(--amber);
  content: "";
}

.hero::after {
  position: absolute;
  right: -10rem;
  bottom: -19rem;
  z-index: -1;
  width: 42rem;
  height: 42rem;
  border: 1px solid rgba(152, 167, 143, 0.22);
  border-radius: 50%;
  box-shadow:
    0 0 0 5rem rgba(152, 167, 143, 0.035),
    0 0 0 10rem rgba(152, 167, 143, 0.02);
  content: "";
}

.hero-copy {
  position: relative;
  z-index: 2;
  min-width: 0;
}

.eyebrow,
.section-label {
  margin: 0;
  color: var(--amber);
  font-family: var(--mono);
  font-size: 0.67rem;
  font-weight: 600;
  letter-spacing: 0.16em;
  text-transform: uppercase;
}

.hero h1 {
  max-width: 50rem;
  margin: 1.6rem 0 0;
  color: var(--heading);
  font-family: var(--display);
  font-size: clamp(4rem, 7.5vw, 8rem);
  font-weight: 600;
  letter-spacing: -0.072em;
  line-height: 0.88;
  text-wrap: balance;
}

.hero h1 span {
  display: block;
  color: #d4d4d8;
}

.hero-lede {
  max-width: 42rem;
  margin: 2rem 0 0;
  color: #a1a1aa;
  font-size: clamp(1.1rem, 2vw, 1.35rem);
  line-height: 1.55;
  text-wrap: balance;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.8rem;
  margin-top: 2.2rem;
}

.button {
  display: inline-flex;
  min-height: 3rem;
  align-items: center;
  justify-content: center;
  gap: 0.7rem;
  border: 1px solid;
  padding: 0.75rem 1.1rem;
  font-family: var(--mono);
  font-size: 0.64rem;
  font-weight: 600;
  letter-spacing: 0.11em;
  text-decoration: none;
  text-transform: uppercase;
  transition: background 160ms ease, border-color 160ms ease, color 160ms ease, transform 160ms ease;
}

.button:hover {
  transform: translateY(-2px);
}

.button-primary {
  border-color: rgba(251, 191, 36, 0.78);
  background: var(--amber);
  color: #1a1307;
}

.button-primary:hover {
  background: var(--amber-bright);
}

.button-secondary {
  border-color: rgba(184, 195, 209, 0.3);
  background: rgba(184, 195, 209, 0.05);
  color: var(--strong);
}

.button-secondary:hover {
  border-color: rgba(184, 195, 209, 0.52);
  background: rgba(184, 195, 209, 0.09);
}

.hero-index {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.65rem;
  margin-top: 3rem;
  color: #71717a;
  font-family: var(--mono);
  font-size: 0.58rem;
  letter-spacing: 0.11em;
  text-transform: uppercase;
}

.hero-index i {
  color: rgba(251, 191, 36, 0.55);
  font-style: normal;
}

.story-cta {
  position: relative;
  z-index: 2;
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  align-items: center;
  gap: 1.15rem;
  width: 100%;
  min-height: 10rem;
  overflow: hidden;
  border: 1px solid rgba(251, 191, 36, 0.9);
  background: linear-gradient(135deg, #fbbf24, #f59e0b);
  box-shadow: 0 1rem 3rem rgba(0, 0, 0, 0.26);
  color: #1a1307;
  padding: 1.4rem;
  text-decoration: none;
  transition:
    transform 220ms ease,
    box-shadow 220ms ease,
    filter 220ms ease;
}

.story-cta::before {
  position: absolute;
  inset: 0;
  background: linear-gradient(110deg, transparent 20%, rgba(255, 255, 255, 0.35) 48%, transparent 72%);
  content: "";
  transform: translateX(-125%);
  transition: transform 520ms ease;
}

.story-cta:hover {
  box-shadow: 0 1.6rem 4rem rgba(245, 158, 11, 0.24);
  filter: saturate(1.08);
  transform: translateY(-5px) scale(1.015);
}

.story-cta:hover::before {
  transform: translateX(125%);
}

.story-cta:focus-visible {
  outline: 2px solid var(--amber-bright);
  outline-offset: 5px;
}

.story-cta strong {
  position: relative;
  max-width: 10rem;
  font-family: var(--display);
  font-size: clamp(1.65rem, 2.7vw, 2.35rem);
  letter-spacing: -0.045em;
  line-height: 0.95;
}

.story-cta-arrow {
  position: relative;
  display: grid;
  width: 3.2rem;
  height: 3.2rem;
  place-items: center;
  border: 1px solid rgba(26, 19, 7, 0.32);
  background: rgba(255, 255, 255, 0.24);
  font-family: var(--mono);
  font-size: 1.4rem;
  transition: transform 220ms ease, background 220ms ease;
}

.story-cta:hover .story-cta-arrow {
  background: rgba(255, 255, 255, 0.45);
  transform: translateX(0.28rem);
}

.signal-strip {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  border: 1px solid var(--line);
  background: var(--line);
  gap: 1px;
}

.signal-strip article {
  min-width: 0;
  background: rgba(23, 26, 27, 0.95);
  padding: 1.5rem;
}

.signal-strip span {
  color: var(--amber);
  font-family: var(--mono);
  font-size: 0.55rem;
  font-weight: 600;
  letter-spacing: 0.12em;
}


.signal-strip article:nth-child(2) span {
  color: #98a78f;
}

.signal-strip article:nth-child(3) span {
  color: #b6aaa4;
}

.signal-strip article:nth-child(4) span {
  color: #9896aa;
}

.signal-strip strong {
  display: block;
  margin-top: 1rem;
  color: var(--strong);
  font-family: var(--display);
  font-size: 1.2rem;
  letter-spacing: -0.03em;
}

.signal-strip p {
  margin: 0.55rem 0 0;
  color: var(--muted);
  font-size: 0.95rem;
  line-height: 1.5;
}

.contact h2 {
  margin: 0.8rem 0 0;
  color: var(--heading);
  font-family: var(--display);
  font-size: clamp(2rem, 4vw, 3.25rem);
  font-weight: 600;
  letter-spacing: -0.045em;
  line-height: 1.04;
  text-wrap: balance;
}

.contact-section {
  margin: 6rem 0;
}

.contact {
  border: 1px solid rgba(251, 191, 36, 0.36);
  background:
    linear-gradient(120deg, rgba(251, 191, 36, 0.1), rgba(23, 26, 27, 0.96) 48%),
    var(--surface);
  padding: clamp(2rem, 5vw, 4rem);
  box-shadow: 0 28px 80px rgba(0, 0, 0, 0.26);
}

.contact-copy > p:not(.section-label) {
  max-width: 48rem;
  margin: 1rem 0 0;
  color: #a1a1aa;
  font-size: 1.1rem;
}

.contact-trigger {
  margin-top: 1.75rem;
}

.contact-trigger-arrow {
  display: inline-block;
  transform: rotate(0deg);
  transition: transform 260ms ease;
}

.contact-trigger[aria-expanded="true"] .contact-trigger-arrow {
  transform: rotate(90deg);
}

.contact-form-panel {
  display: grid;
  grid-template-rows: 0fr;
  margin-top: 0;
  opacity: 0;
  scroll-margin-top: 2rem;
  transform: translateY(-0.9rem);
  transition:
    grid-template-rows 480ms cubic-bezier(0.22, 1, 0.36, 1),
    margin 480ms cubic-bezier(0.22, 1, 0.36, 1),
    opacity 260ms ease,
    transform 480ms cubic-bezier(0.22, 1, 0.36, 1);
}

.contact-form-panel.is-open {
  grid-template-rows: 1fr;
  margin-top: 1.25rem;
  opacity: 1;
  transform: translateY(0);
}

.contact-form-card {
  min-height: 0;
  overflow: hidden;
  border: 1px solid rgba(184, 195, 209, 0.24);
  background:
    radial-gradient(circle at 92% 0%, rgba(77, 159, 255, 0.11), transparent 32%),
    rgba(17, 21, 22, 0.96);
  box-shadow: 0 24px 72px rgba(0, 0, 0, 0.3);
}

.contact-form-panel.is-open .contact-form-card {
  padding: clamp(1.6rem, 4vw, 3rem);
}

.form-heading {
  margin-bottom: 1.5rem;
}

.form-heading h3 {
  margin: 0.65rem 0 0;
  color: var(--heading);
  font-family: var(--display);
  font-size: clamp(1.65rem, 3vw, 2.35rem);
  font-weight: 600;
  letter-spacing: -0.035em;
}

.contact-form {
  display: grid;
  gap: 1rem;
  border-top: 1px solid rgba(184, 195, 209, 0.18);
  padding-top: 1.5rem;
}

.form-row {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1rem;
}

.contact-form label {
  display: grid;
  gap: 0.45rem;
  color: var(--strong);
  font-family: var(--mono);
  font-size: 0.6rem;
  font-weight: 600;
  letter-spacing: 0.11em;
  text-transform: uppercase;
}

.contact-form input,
.contact-form textarea {
  width: 100%;
  border: 1px solid var(--line-bright);
  border-radius: 0;
  background: rgba(17, 21, 22, 0.72);
  color: var(--strong);
  font: inherit;
  font-family: var(--body);
  font-size: 0.98rem;
  letter-spacing: normal;
  line-height: 1.5;
  text-transform: none;
}

.contact-form input {
  height: 2.8rem;
  padding: 0 0.8rem;
}

.contact-form textarea {
  min-height: 7rem;
  resize: vertical;
  padding: 0.7rem 0.8rem;
}

.contact-form input:focus,
.contact-form textarea:focus {
  outline: 2px solid var(--amber);
  outline-offset: 2px;
}

.contact-form input::placeholder,
.contact-form textarea::placeholder {
  color: var(--muted);
}

.form-note,
.form-status {
  margin: 0;
  color: var(--muted);
  font-size: 0.76rem;
  line-height: 1.5;
}

.form-note a {
  color: var(--amber-bright);
}

.form-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.5rem;
}

.form-status {
  min-height: 1.2rem;
}

.contact-form .button {
  flex: 0 0 auto;
}

.contact-form .button:disabled {
  cursor: not-allowed;
  opacity: 0.48;
}

footer {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr) auto auto;
  align-items: center;
  gap: 2rem;
  border-top: 1px solid var(--line);
  background: rgba(21, 23, 24, 0.76);
  padding: 2.5rem max(2rem, calc((100vw - 88rem) / 2));
  color: var(--muted);
}

.footer-brand {
  grid-template-columns: 1.9rem auto;
}

.footer-brand img {
  width: 1.9rem;
  height: 1.9rem;
}

footer p,
footer small {
  margin: 0;
  font-family: var(--mono);
  font-size: 0.58rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

footer div {
  display: flex;
  gap: 1.2rem;
}

footer div a {
  color: var(--muted);
  font-family: var(--mono);
  font-size: 0.58rem;
  letter-spacing: 0.08em;
  text-decoration: none;
  text-transform: uppercase;
}

footer div a:hover {
  color: var(--strong);
}

.js .reveal {
  opacity: 0;
  transform: translateY(1.2rem);
  transition: opacity 520ms ease, transform 520ms ease;
}

.js .reveal.is-visible {
  opacity: 1;
  transform: none;
}

@media (max-width: 82rem) {
  .hero {
    grid-template-columns: 1fr;
  }

  .story-cta {
    width: min(100%, 22rem);
    justify-self: end;
  }
}

@media (max-width: 72rem) {
  .hero {
    min-height: 38rem;
    padding-block: 6rem;
  }

  .signal-strip {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 48rem) {
  .site-header {
    padding: 0 1.25rem;
  }

  .brand-note {
    display: none;
  }

  .site-header nav {
    gap: 0.9rem;
    font-size: 0.56rem;
  }


  main {
    width: min(100% - 2rem, 88rem);
  }

  .hero {
    min-height: 34rem;
    margin-top: 1rem;
    padding: 4.5rem 1.5rem;
  }

  .story-cta {
    width: 100%;
    min-height: 8.5rem;
    justify-self: stretch;
  }

  .hero::after {
    right: -15rem;
    bottom: -22rem;
  }

  .hero h1 {
    font-size: clamp(3.4rem, 17vw, 5.4rem);
  }

  .hero-index {
    align-items: flex-start;
    flex-direction: column;
  }

  .hero-index i {
    rotate: 90deg;
  }


  .signal-strip {
    grid-template-columns: 1fr;
  }


  .contact-section {
    margin-top: 5rem;
  }

  .form-row {
    grid-template-columns: 1fr;
  }

  .form-footer {
    align-items: flex-start;
    flex-direction: column;
  }

  footer {
    grid-template-columns: 1fr;
    gap: 1rem;
    padding: 2.5rem 1.25rem;
  }
}

@media (max-width: 25rem) {
  .site-header nav a:nth-child(2) {
    display: none;
  }

}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    transition-duration: 0.01ms !important;
  }

  .js .reveal {
    opacity: 1;
    transform: none;
  }
}