:root {
  color-scheme: dark;
  --ink: #f7fbff;
  --muted: #a9bcc9;
  --line: rgba(255, 255, 255, 0.12);
  --surface: rgba(12, 37, 53, 0.76);
  --surface-strong: #102f42;
  --cyan: #67e7f5;
  --teal: #28c7b8;
  --navy: #061923;
  --shadow: 0 22px 60px rgba(0, 0, 0, 0.28);
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  min-width: 320px;
  min-height: 100vh;
  color: var(--ink);
  background:
    radial-gradient(circle at 15% 0%, rgba(52, 167, 201, 0.22), transparent 34rem),
    radial-gradient(circle at 92% 8%, rgba(40, 199, 184, 0.18), transparent 30rem),
    linear-gradient(145deg, #061923 0%, #092737 54%, #061923 100%);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  line-height: 1.6;
}

a { color: inherit; }

.skip-link {
  position: fixed;
  top: 0.75rem;
  left: 0.75rem;
  z-index: 20;
  padding: 0.7rem 1rem;
  color: #061923;
  background: var(--cyan);
  border-radius: 0.65rem;
  transform: translateY(-180%);
}

.skip-link:focus { transform: translateY(0); }

.site-shell {
  width: min(1140px, calc(100% - 2rem));
  margin: 0 auto;
}

.site-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.25rem;
  padding: 1.35rem 0;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 0.75rem;
  text-decoration: none;
}

.brand-mark {
  display: grid;
  width: 2.65rem;
  height: 2.65rem;
  place-items: center;
  border: 1px solid rgba(103, 231, 245, 0.65);
  border-radius: 0.8rem;
  color: var(--cyan);
  background: linear-gradient(145deg, rgba(103, 231, 245, 0.16), rgba(40, 199, 184, 0.06));
  box-shadow: 0 0 25px rgba(103, 231, 245, 0.12);
  font-size: 0.85rem;
  font-weight: 800;
  letter-spacing: -0.06em;
}

.brand-name {
  font-size: 1.2rem;
  font-weight: 800;
  letter-spacing: 0.04em;
}

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

.top-link {
  color: var(--muted);
  font-size: 0.92rem;
  font-weight: 700;
  text-decoration: none;
}

.top-link:hover,
.top-link:focus-visible { color: var(--cyan); }

.hero {
  display: grid;
  grid-template-columns: minmax(0, 1.15fr) minmax(270px, 0.65fr);
  gap: clamp(2rem, 6vw, 5rem);
  align-items: center;
  min-height: 520px;
  padding: clamp(4rem, 9vw, 7rem) 0;
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 0.55rem;
  margin: 0 0 1.25rem;
  color: var(--cyan);
  font-size: 0.78rem;
  font-weight: 800;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

.eyebrow::before {
  width: 0.55rem;
  height: 0.55rem;
  background: var(--teal);
  border-radius: 50%;
  box-shadow: 0 0 0 0.3rem rgba(40, 199, 184, 0.13);
  content: "";
}

h1 {
  max-width: 780px;
  margin: 0;
  font-size: clamp(2.8rem, 8vw, 6rem);
  line-height: 0.95;
  letter-spacing: -0.065em;
}

h1 span {
  display: block;
  margin-top: 0.16em;
  color: transparent;
  background: linear-gradient(90deg, var(--cyan), var(--teal));
  background-clip: text;
  -webkit-background-clip: text;
}

.lede {
  max-width: 680px;
  margin: 1.55rem 0 0;
  color: var(--muted);
  font-size: clamp(1.05rem, 2vw, 1.25rem);
}

.actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.85rem;
  margin-top: 2rem;
}

.button {
  display: inline-flex;
  min-height: 3.15rem;
  align-items: center;
  justify-content: center;
  padding: 0.8rem 1.2rem;
  border: 1px solid var(--line);
  border-radius: 0.8rem;
  color: var(--ink);
  background: rgba(255, 255, 255, 0.035);
  font-size: 0.94rem;
  font-weight: 800;
  text-decoration: none;
  transition: transform 160ms ease, border-color 160ms ease, background 160ms ease;
}

.button-primary {
  border-color: transparent;
  color: #06202c;
  background: linear-gradient(100deg, var(--cyan), var(--teal));
}

.button:hover,
.button:focus-visible {
  border-color: rgba(103, 231, 245, 0.7);
  transform: translateY(-2px);
}

.button-primary:hover,
.button-primary:focus-visible { background: linear-gradient(100deg, #9bf1fb, #53ddcf); }

.signal-card {
  position: relative;
  overflow: hidden;
  padding: 2rem;
  border: 1px solid var(--line);
  border-radius: 1.25rem;
  background: linear-gradient(150deg, rgba(19, 58, 77, 0.9), rgba(8, 29, 41, 0.9));
  box-shadow: var(--shadow);
}

.signal-card::after {
  position: absolute;
  right: -4rem;
  bottom: -5rem;
  width: 12rem;
  height: 12rem;
  background: var(--cyan);
  border-radius: 50%;
  opacity: 0.08;
  filter: blur(8px);
  content: "";
}

.signal-label {
  margin: 0 0 0.7rem;
  color: var(--cyan);
  font-size: 0.76rem;
  font-weight: 800;
  letter-spacing: 0.13em;
  text-transform: uppercase;
}

.signal-card h2 {
  margin: 0;
  font-size: 1.65rem;
  line-height: 1.2;
}

.signal-card p {
  margin: 0.8rem 0 0;
  color: var(--muted);
}

.signal-list {
  display: grid;
  gap: 0.75rem;
  margin: 1.5rem 0 0;
  padding: 0;
  list-style: none;
}

.signal-list li {
  display: flex;
  gap: 0.7rem;
  align-items: center;
  font-size: 0.92rem;
  font-weight: 700;
}

.signal-list li::before {
  width: 0.5rem;
  height: 0.5rem;
  flex: 0 0 auto;
  background: var(--teal);
  border-radius: 50%;
  box-shadow: 0 0 12px rgba(40, 199, 184, 0.7);
  content: "";
}

.resources {
  padding: 1rem 0 clamp(4rem, 8vw, 7rem);
}

.section-heading {
  display: flex;
  align-items: end;
  justify-content: space-between;
  gap: 2rem;
  margin-bottom: 1.5rem;
}

.section-heading h2 {
  margin: 0;
  font-size: clamp(1.8rem, 4vw, 2.6rem);
  letter-spacing: -0.04em;
}

.section-heading p {
  max-width: 520px;
  margin: 0;
  color: var(--muted);
}

.tool-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1rem;
}

.tool-card {
  display: flex;
  min-height: 185px;
  flex-direction: column;
  padding: 1.45rem;
  border: 1px solid var(--line);
  border-radius: 1rem;
  background: var(--surface);
  box-shadow: 0 10px 35px rgba(0, 0, 0, 0.12);
  text-decoration: none;
  transition: transform 160ms ease, border-color 160ms ease, background 160ms ease;
}

.tool-card:hover,
.tool-card:focus-visible {
  border-color: rgba(103, 231, 245, 0.55);
  background: var(--surface-strong);
  transform: translateY(-3px);
}

.tool-kicker {
  color: var(--cyan);
  font-size: 0.72rem;
  font-weight: 800;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.tool-card h3 {
  margin: 0.65rem 0 0;
  font-size: 1.2rem;
}

.tool-card p {
  margin: 0.55rem 0 1rem;
  color: var(--muted);
  font-size: 0.92rem;
}

.tool-arrow {
  margin-top: auto;
  color: var(--cyan);
  font-weight: 800;
}

.support-banner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 2rem;
  margin-bottom: clamp(4rem, 8vw, 7rem);
  padding: clamp(1.5rem, 4vw, 2.5rem);
  border: 1px solid rgba(103, 231, 245, 0.24);
  border-radius: 1.15rem;
  background: linear-gradient(100deg, rgba(103, 231, 245, 0.12), rgba(40, 199, 184, 0.07));
}

.support-banner h2 {
  margin: 0;
  font-size: clamp(1.45rem, 3vw, 2rem);
}

.support-banner p {
  margin: 0.35rem 0 0;
  color: var(--muted);
}

.site-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.5rem;
  padding: 1.5rem 0 2.25rem;
  border-top: 1px solid var(--line);
  color: var(--muted);
  font-size: 0.85rem;
}

.footer-links {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
}

.footer-links a { text-decoration: none; }
.footer-links a:hover,
.footer-links a:focus-visible { color: var(--cyan); }

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

@media (max-width: 860px) {
  .hero { grid-template-columns: 1fr; min-height: auto; }
  .signal-card { max-width: 620px; }
  .tool-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .section-heading { align-items: start; flex-direction: column; gap: 0.5rem; }
}

@media (max-width: 600px) {
  .site-shell { width: min(100% - 1.25rem, 1140px); }
  .site-header { padding: 1rem 0; }
  .top-link { display: none; }
  .hero { padding: 3.5rem 0 4rem; }
  .tool-grid { grid-template-columns: 1fr; }
  .support-banner,
  .site-footer { align-items: stretch; flex-direction: column; }
  .support-banner .button { width: 100%; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { transition-duration: 0.01ms !important; }
}