:root {
  color-scheme: dark;
  font-family: "Inter", system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  line-height: 1.6;
  --brand-bg: #1f232c;
  --brand-panel: rgba(38, 44, 55, 0.92);
  --brand-soft: rgba(48, 58, 74, 0.65);
  --brand-card: rgba(48, 58, 74, 0.75);
  --brand-ink: #f8fafc;
  --brand-muted: #9aa6bd;
  --brand-accent: #ff6b2c;
  --brand-accent-soft: rgba(255, 107, 44, 0.16);
  --brand-signal: #3e92cc;
  --brand-border: rgba(154, 166, 189, 0.18);
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100vh;
  background:
    radial-gradient(circle at top left, var(--brand-accent-soft), transparent 55%),
    radial-gradient(circle at bottom right, rgba(62, 146, 204, 0.18), transparent 45%),
    var(--brand-bg);
  color: var(--brand-ink);
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  background: linear-gradient(140deg, var(--brand-soft) 0%, rgba(31, 35, 44, 0) 60%);
  pointer-events: none;
  z-index: -1;
}

.page-shell {
  max-width: min(1100px, 100% - clamp(2.5rem, 10vw, 6rem));
  margin: 0 auto;
  padding: clamp(2rem, 6vw, 4rem) clamp(1.5rem, 5vw, 3rem) clamp(3rem, 8vw, 4.5rem);
  display: flex;
  flex-direction: column;
  min-height: 100vh;
  gap: clamp(3rem, 8vw, 5rem);
}

.top-nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.5rem;
  padding: 1.25rem 1.5rem;
  background: var(--brand-panel);
  border-radius: 1.5rem;
  border: 1px solid var(--brand-border);
  box-shadow: 0 18px 40px rgba(0, 0, 0, 0.35);
  backdrop-filter: blur(18px);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 0.75rem;
  text-decoration: none;
  color: inherit;
  font-weight: 600;
  letter-spacing: 0.02em;
}

.brand img {
  height: clamp(28px, 5vw, 40px);
  width: auto;
}

.brand span {
  font-size: clamp(1.1rem, 2.5vw, 1.35rem);
  font-weight: 700;
  letter-spacing: 0.02em;
}

.nav-link {
  color: var(--brand-muted);
  text-decoration: none;
  font-weight: 600;
  letter-spacing: 0.02em;
  transition: color 150ms ease;
  position: relative;
  padding-bottom: 0.2rem;
}

.nav-link:hover,
.nav-link:focus-visible {
  color: var(--brand-ink);
}

.nav-link:focus-visible {
  outline: none;
}

.nav-link::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: -0.45rem;
  height: 2px;
  border-radius: 999px;
  background: var(--brand-accent);
  opacity: 0;
  transition: opacity 150ms ease;
}

.nav-link:hover::after,
.nav-link:focus-visible::after {
  opacity: 1;
}

.content {
  display: flex;
  flex-direction: column;
  gap: clamp(3rem, 7vw, 4.5rem);
  flex: 1;
}

.hero {
  display: grid;
  gap: clamp(2rem, 6vw, 3.5rem);
  align-items: center;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
}

.hero-copy .eyebrow,
.legacy-header .eyebrow,
.about-header .eyebrow {
  text-transform: uppercase;
  letter-spacing: 0.2em;
  font-size: 0.75rem;
  color: var(--brand-accent);
  margin: 0 0 0.75rem;
}

.hero-copy h1 {
  margin: 0 0 1rem;
  font-size: clamp(2.15rem, 5vw, 3.05rem);
  line-height: 1.25;
}

.hero-copy .lead {
  margin: 0 0 1.5rem;
  color: var(--brand-muted);
  font-size: clamp(1rem, 2.3vw, 1.1rem);
}

.hero-actions {
  display: inline-flex;
  align-items: center;
  gap: 1rem;
}

.cta-button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.85rem 1.75rem;
  border-radius: 999px;
  background: linear-gradient(135deg, var(--brand-accent), var(--brand-signal));
  color: var(--brand-ink);
  font-weight: 600;
  letter-spacing: 0.02em;
  text-decoration: none;
  box-shadow: 0 18px 36px rgba(255, 107, 44, 0.25);
  border: 1px solid rgba(255, 255, 255, 0.06);
  transition:
    transform 160ms ease,
    box-shadow 160ms ease,
    filter 160ms ease;
}

.cta-button:hover,
.cta-button:focus-visible {
  transform: translateY(-2px);
  box-shadow: 0 20px 40px rgba(62, 146, 204, 0.25);
  filter: brightness(1.05);
}

.cta-button:focus-visible {
  outline: none;
  box-shadow:
    0 0 0 3px rgba(31, 35, 44, 0.4),
    0 0 0 5px rgba(255, 107, 44, 0.55);
}

.highlight {
  background: linear-gradient(120deg, rgba(255, 107, 44, 0.35), rgba(62, 146, 204, 0.3));
  padding: 0 0.25em;
  border-radius: 0.5em;
  box-decoration-break: clone;
}

.benefits {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 0.95rem;
  color: var(--brand-ink);
}

.benefits li {
  position: relative;
  padding-left: 1.75rem;
}

.benefits li::before {
  content: "";
  position: absolute;
  top: 0.4em;
  left: 0;
  width: 0.9rem;
  height: 0.9rem;
  border-radius: 999px;
  background: linear-gradient(135deg, var(--brand-accent), var(--brand-signal));
  box-shadow: 0 10px 25px rgba(255, 107, 44, 0.25);
}

.hero-art {
  position: relative;
  display: flex;
  justify-content: center;
}

.hero-art img {
  width: clamp(220px, 45vw, 420px);
  height: auto;
  display: block;
  filter: drop-shadow(0 30px 50px rgba(0, 0, 0, 0.45));
  z-index: 1;
}

.hero-gradient {
  position: absolute;
  inset: 55% -25% -10% -25%;
  background:
    radial-gradient(circle at 35% 35%, var(--brand-accent-soft), transparent 70%),
    radial-gradient(circle at center, rgba(62, 146, 204, 0.35), transparent 65%);
  filter: blur(60px);
  opacity: 0.95;
  z-index: 0;
}

.hero-gradient {
  position: absolute;
  inset: 55% -25% -10% -25%;
  background:
    radial-gradient(circle at 35% 35%, var(--brand-accent-soft), transparent 70%),
    radial-gradient(circle at center, rgba(62, 146, 204, 0.35), transparent 65%);
  filter: blur(60px);
  opacity: 0.95;
  z-index: 0;
}

.legacy-header p:not(.eyebrow) {
  margin: 0;
  color: var(--brand-muted);
}

.legacy-header h2,
.about-header h2 {
  margin: 0 0 0.75rem;
  font-size: clamp(1.55rem, 4.5vw, 2.1rem);
}

.about {
  background: var(--brand-panel);
  border-radius: 1.75rem;
  padding: clamp(2rem, 6vw, 3rem);
  border: 1px solid var(--brand-border);
  box-shadow: 0 35px 90px rgba(0, 0, 0, 0.45);
  backdrop-filter: blur(22px);
  -webkit-backdrop-filter: blur(22px);
  display: grid;
  gap: clamp(1.75rem, 5vw, 2.5rem);
}

.about-header p {
  margin: 0;
  color: var(--brand-muted);
  max-width: 60ch;
}

.about-body {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: clamp(1.25rem, 4vw, 2rem);
}

.about-card {
  background: var(--brand-card);
  border-radius: 1.25rem;
  border: 1px solid var(--brand-border);
  padding: clamp(1.5rem, 5vw, 2rem);
  display: grid;
  gap: 1rem;
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.04);
}

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

.about-card p {
  margin: 0;
  color: var(--brand-muted);
}

.about-card ul {
  margin: 0;
  padding-left: 1.1rem;
  display: grid;
  gap: 0.5rem;
  color: var(--brand-ink);
}

.about-card li {
  position: relative;
  padding-left: 0.65rem;
}

.about-card li::before {
  content: "";
  position: absolute;
  left: -1.1rem;
  top: 0.55em;
  width: 0.55rem;
  height: 0.55rem;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--brand-accent), var(--brand-signal));
  box-shadow: 0 8px 20px rgba(255, 107, 44, 0.25);
}

.legacy-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: clamp(1.25rem, 4vw, 2rem);
}

.legacy-card {
  background: var(--brand-card);
  border-radius: 1.25rem;
  overflow: hidden;
  border: 1px solid var(--brand-border);
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.04);
  display: grid;
  gap: 0.85rem;
}

.legacy-card img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  aspect-ratio: 4 / 3;
  display: block;
}

.legacy-card figcaption {
  padding: 0 1.1rem 1.1rem;
  color: var(--brand-muted);
  font-size: 0.9rem;
}

.signup {
  background: var(--brand-panel);
  border-radius: 1.75rem;
  padding: clamp(2rem, 6vw, 3rem);
  border: 1px solid var(--brand-border);
  box-shadow: 0 35px 90px rgba(0, 0, 0, 0.45);
  backdrop-filter: blur(22px);
  -webkit-backdrop-filter: blur(22px);
}

.signup-header .eyebrow {
  text-transform: uppercase;
  letter-spacing: 0.2em;
  font-size: 0.75rem;
  color: #94a3b8;
  margin: 0;
}

.signup-header h2 {
  margin: 0.5rem 0 0.75rem;
  font-size: clamp(1.65rem, 4vw, 2.2rem);
}

.signup-header p {
  margin: 0;
  color: var(--brand-muted);
  max-width: 48ch;
}

.signup-form {
  margin-top: clamp(1.5rem, 5vw, 2rem);
  display: grid;
  gap: 1.25rem;
}

.field {
  display: flex;
  flex-direction: column;
  gap: 0.55rem;
  font-size: 0.95rem;
}

.field input[type="text"],
.field input[type="email"] {
  background: rgba(48, 58, 74, 0.75);
  border: 1px solid rgba(154, 166, 189, 0.35);
  border-radius: 0.9rem;
  padding: 0.85rem 1rem;
  color: inherit;
  font: inherit;
  outline: none;
  transition: border-color 120ms ease, box-shadow 120ms ease;
}

.field input[type="text"]:focus,
.field input[type="email"]:focus {
  border-color: rgba(62, 146, 204, 0.8);
  box-shadow: 0 0 0 3px rgba(62, 146, 204, 0.25);
}

fieldset.field {
  border: 1px solid rgba(154, 166, 189, 0.35);
  border-radius: 1.1rem;
  padding: 1rem 1.25rem 1.5rem;
  background: rgba(48, 58, 74, 0.5);
}

fieldset legend {
  padding: 0 0.5rem;
  color: var(--brand-accent);
  font-weight: 600;
}

.choice {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  font-size: 0.95rem;
  color: var(--brand-ink);
  margin-top: 0.65rem;
}

.choice input[type="checkbox"] {
  width: 1.1rem;
  height: 1.1rem;
  accent-color: var(--brand-accent);
}

.actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  align-items: center;
  margin-top: 0.5rem;
}

button[type="submit"] {
  background: linear-gradient(135deg, var(--brand-accent), var(--brand-signal));
  color: white;
  border: none;
  border-radius: 999px;
  padding: 0.85rem 1.75rem;
  font: inherit;
  font-weight: 700;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  cursor: pointer;
  transition: transform 150ms ease, box-shadow 150ms ease;
}

button[type="submit"]:hover {
  transform: translateY(-1px);
  box-shadow: 0 18px 35px rgba(255, 107, 44, 0.35);
}

button[type="submit"]:disabled {
  opacity: 0.6;
  cursor: progress;
  transform: none;
  box-shadow: none;
}

.status {
  min-height: 1.2em;
  font-size: 0.9rem;
  color: var(--brand-muted);
}

.status.error {
  color: #fca5a5;
}

.status.success {
  color: #bbf7d0;
}

.site-footer {
  text-align: center;
  color: var(--brand-muted);
  font-size: 0.9rem;
}

.site-footer p {
  margin: 0;
}

@media (max-width: 720px) {
  .page-shell {
    max-width: min(100%, 100% - 2.5rem);
    padding: clamp(1.75rem, 8vw, 2.5rem) clamp(1.25rem, 6vw, 2.25rem) clamp(2.5rem, 10vw, 3.5rem);
    gap: clamp(2.5rem, 10vw, 4rem);
  }

  .top-nav {
    flex-direction: column;
    align-items: flex-start;
  }
}

@media (max-width: 540px) {
  .hero {
    text-align: left;
  }

  .hero-art {
    justify-content: flex-start;
  }
}