:root {
  --bg: #07090d;
  --bg-header: rgba(7, 9, 13, 0.88);
  --bg-card: #10161f;
  --line: rgba(62, 224, 224, 0.14);
  --line-strong: rgba(62, 224, 224, 0.42);
  --text: #e8eef6;
  --muted: #93a4bb;
  --faint: #6b7c93;
  --cyan: #3ee0e0;
  --cyan-dim: #1a9c9c;
  --max: 1080px;
  --font: "IBM Plex Sans", "Segoe UI", system-ui, sans-serif;
  --mono: "IBM Plex Mono", ui-monospace, "SFMono-Regular", monospace;
  --display: "Syne", var(--font);
}

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

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

body {
  margin: 0;
  font-family: var(--font);
  font-size: 1.0625rem;
  line-height: 1.65;
  color: var(--text);
  background:
    radial-gradient(1200px 500px at 80% -10%, rgba(62, 224, 224, 0.07), transparent 55%),
    linear-gradient(180deg, #0a0e14 0%, var(--bg) 18%);
  min-height: 100vh;
}

a {
  color: var(--cyan);
  text-decoration-thickness: 1px;
  text-underline-offset: 0.18em;
}

a:hover {
  color: #9ff7f7;
}

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

.skip {
  position: absolute;
  left: 1rem;
  top: -4rem;
  background: var(--cyan);
  color: #041111;
  padding: 0.5rem 0.8rem;
  font-weight: 600;
  z-index: 20;
}

.skip:focus {
  top: 1rem;
}

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

.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  backdrop-filter: blur(16px);
  background: var(--bg-header);
  border-bottom: 1px solid var(--line);
}

.header-inner,
.footer-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  min-height: 4rem;
}

.wordmark {
  font-family: var(--display);
  font-weight: 700;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  font-size: 0.82rem;
  color: var(--cyan);
  text-decoration: none;
}

.wordmark:hover {
  color: #9ff7f7;
}

nav {
  display: flex;
  gap: 1.25rem;
}

nav a {
  color: var(--muted);
  text-decoration: none;
  font-size: 0.92rem;
}

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

.hero {
  padding: 4.5rem 0 3.5rem;
}

.kicker,
.mono-label {
  font-family: var(--mono);
  font-size: 0.78rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--cyan-dim);
  margin: 0 0 1rem;
}

h1,
h2,
h3 {
  font-family: var(--display);
  font-weight: 700;
  letter-spacing: -0.03em;
  line-height: 1.1;
}

h1 {
  font-size: clamp(2.6rem, 7vw, 4.6rem);
  margin: 0 0 1.25rem;
}

h2 {
  font-size: clamp(1.6rem, 3vw, 2.15rem);
  margin: 0;
  max-width: 22ch;
}

h3 {
  font-size: 1.15rem;
  margin: 0 0 0.6rem;
}

.lede {
  max-width: 46rem;
  font-size: 1.2rem;
  color: var(--muted);
  margin: 0 0 1.75rem;
}

.lede.compact {
  margin-bottom: 0;
  font-size: 1.08rem;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.7rem;
  margin-bottom: 2.5rem;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 2.7rem;
  padding: 0 1rem;
  border: 1px solid var(--line-strong);
  border-radius: 999px;
  color: var(--text);
  text-decoration: none;
  font-size: 0.95rem;
  font-weight: 500;
  background: transparent;
  cursor: pointer;
  font-family: inherit;
}

form .btn {
  min-height: 3.15rem;
  padding: 0 1.35rem;
  font-size: 1.05rem;
}

.btn:hover {
  border-color: var(--cyan);
  color: var(--cyan);
  background: rgba(62, 224, 224, 0.06);
}

.btn-primary {
  background: var(--cyan);
  color: #041111;
  border-color: var(--cyan);
  font-weight: 600;
}

.btn-primary:hover {
  background: #9ff7f7;
  color: #041111;
  border-color: #9ff7f7;
}

.facts {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1rem;
  margin: 0;
  padding: 1.25rem 0 0;
  border-top: 1px solid var(--line);
}

.facts dt {
  font-family: var(--mono);
  font-size: 0.72rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--faint);
  margin-bottom: 0.35rem;
}

.facts dd {
  margin: 0;
  color: var(--text);
  font-weight: 500;
}

.section {
  padding: 3.2rem 0;
  border-top: 1px solid var(--line);
}

.section-head {
  display: grid;
  gap: 0.75rem;
  margin-bottom: 1.8rem;
}

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

.cards article {
  background: var(--bg-card);
  border: 1px solid var(--line);
  border-top: 2px solid var(--cyan);
  border-radius: 14px;
  padding: 1.25rem 1.3rem 1.35rem;
}

.cards p {
  color: var(--muted);
  margin: 0;
}

.impact,
.study {
  list-style: none;
  margin: 0;
  padding: 0;
}

.impact {
  display: grid;
  gap: 0;
}

.impact li {
  display: grid;
  grid-template-columns: minmax(16rem, 0.9fr) 1.2fr;
  gap: 0.75rem 2rem;
  padding: 1.1rem 0;
  border-top: 1px solid var(--line);
}

.impact li:last-child {
  border-bottom: 1px solid var(--line);
}

.impact p {
  margin: 0;
}

.impact-result {
  font-weight: 600;
  color: var(--text);
}

.impact li p:last-child {
  color: var(--muted);
}

.study li + li {
  margin-top: 0.7rem;
}

.study li {
  color: var(--muted);
}

.study strong {
  color: var(--text);
  font-weight: 600;
}

.credentials {
  margin: 1.5rem 0 0;
  color: var(--muted);
}

.credentials span {
  display: block;
  margin-bottom: 0.35rem;
  font-family: var(--mono);
  font-size: 0.72rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--faint);
}

.contact {
  padding-bottom: 4.5rem;
}

.contact-layout {
  display: grid;
  gap: 1.75rem;
  max-width: 42rem;
}

.hp {
  position: absolute;
  left: -9999px;
  height: 0;
  overflow: hidden;
}

label {
  display: block;
  font-family: var(--mono);
  font-size: 0.72rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--faint);
  margin-bottom: 0.4rem;
}

.field {
  margin-bottom: 1.15rem;
}

input,
textarea {
  width: 100%;
  font: inherit;
  font-size: 1.2rem;
  line-height: 1.45;
  color: var(--text);
  background: var(--bg-card);
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 1.1rem 1.15rem;
}

input[type="text"],
input[type="email"] {
  min-height: 3.6rem;
}

textarea {
  min-height: 16rem;
  resize: vertical;
}

input:focus,
textarea:focus {
  border-color: var(--cyan);
  outline: none;
}

.form-status {
  min-height: 1.4rem;
  margin: 0.75rem 0 0;
  color: var(--muted);
  font-size: 0.95rem;
}

.form-status.ok {
  color: var(--cyan);
}

.form-status.err {
  color: #f0a0a0;
}

.site-footer {
  border-top: 1px solid var(--line);
  color: var(--faint);
  font-size: 0.88rem;
}

@media (max-width: 880px) {
  .facts,
  .cards,
  .impact li {
    grid-template-columns: 1fr;
  }

  .hero {
    padding-top: 3rem;
  }
}

@media (max-width: 560px) {
  .wrap {
    width: min(var(--max), calc(100% - 1.5rem));
  }

  .footer-inner {
    flex-direction: column;
    align-items: flex-start;
    padding: 1.1rem 0;
  }
}

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