:root {
  --accent: #6b4eff;
  --accent-dark: #4a35cc;
  --accent-muted: rgba(107, 78, 255, 0.12);
  --background: #0f172a;
  --text-primary: #0f172a;
  --text-secondary: #475569;
  --surface: #ffffff;
  --surface-muted: #f1f5f9;
  --border: rgba(15, 23, 42, 0.08);
  --shadow: 0 20px 45px rgba(15, 23, 42, 0.12);
  --radius-lg: 24px;
  --radius-md: 16px;
  --radius-sm: 12px;
  font-size: 16px;
}

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

body {
  margin: 0;
  font-family: "Inter", system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI",
    sans-serif;
  color: var(--text-primary);
  background: #ffffff;
  line-height: 1.6;
}

a {
  color: inherit;
  text-decoration: none;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.75rem 1.75rem;
  border-radius: 999px;
  font-weight: 600;
  transition: transform 0.18s ease, box-shadow 0.18s ease, background 0.18s ease;
  cursor: pointer;
  border: 1px solid transparent;
}

.btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 10px 24px rgba(107, 78, 255, 0.18);
}

.btn:active {
  transform: translateY(0);
}

.btn-primary {
  background: linear-gradient(135deg, var(--accent), #8d69ff);
  color: #fff;
}

.btn-outline {
  background: #fff;
  border-color: rgba(15, 23, 42, 0.12);
  color: inherit;
}

.btn-outline:hover {
  border-color: transparent;
  background: rgba(107, 78, 255, 0.1);
  color: var(--accent-dark);
}

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

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

.hero {
  min-height: min(92vh, 780px);
  background: radial-gradient(circle at top left, rgba(107, 78, 255, 0.16), transparent 50%),
    radial-gradient(circle at bottom right, rgba(13, 148, 136, 0.12), transparent 48%),
    #f8fafc;
  padding: clamp(1.75rem, 4vw, 3rem) clamp(1.5rem, 4vw, 4rem) clamp(3rem, 6vw, 4rem);
  position: relative;
  overflow: hidden;
}

.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  max-width: 1120px;
  margin: 0 auto 3rem;
}

.logo {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--accent);
}

.hero-content {
  max-width: 1120px;
  margin: 0 auto;
  display: grid;
  gap: clamp(2rem, 6vw, 3.5rem);
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  align-items: center;
}

.hero-copy h1 {
  font-size: clamp(2.5rem, 5vw, 3.75rem);
  line-height: 1.1;
  margin: 1rem 0;
}

.hero-copy p {
  color: var(--text-secondary);
  max-width: 32rem;
  margin-bottom: 1.5rem;
}

.hero-visual {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 1rem;
}

.hero-visual img {
  width: min(100%, 420px);
  border-radius: 24px;
  box-shadow: 0 24px 52px rgba(15, 23, 42, 0.16);
  border: 1px solid rgba(15, 23, 42, 0.06);
}

.hero-caption {
  max-width: 22rem;
  text-align: center;
  font-size: 0.95rem;
  color: var(--text-secondary);
}

.section {
  padding: clamp(2.75rem, 8vw, 5.5rem) clamp(1.5rem, 4vw, 4rem);
}

.steps {
  background: #fff;
  text-align: center;
}

.steps h2,
.benefits h2 {
  font-size: clamp(2rem, 4vw, 2.75rem);
  margin-bottom: 2rem;
}

.step-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 1.5rem;
  max-width: 960px;
  margin: 0 auto;
}

.step-card {
  background: #fff;
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 1.75rem;
  box-shadow: 0 18px 30px rgba(15, 23, 42, 0.06);
  text-align: left;
}

.step-number {
  display: inline-block;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 1rem;
}

.step-card h3 {
  margin: 0 0 0.75rem;
  font-size: 1.25rem;
}

.step-card p {
  margin: 0;
  color: var(--text-secondary);
}

.benefits {
  background: var(--surface-muted);
  text-align: center;
}

.benefit-list {
  list-style: none;
  padding: 0;
  margin: 0 auto;
  display: grid;
  gap: 0.75rem;
  max-width: 720px;
  font-size: 1.1rem;
  color: var(--text-secondary);
}

.visual figure {
  max-width: 680px;
  margin: 0 auto;
  text-align: center;
  display: grid;
  gap: 1.5rem;
}

.visual figure img {
  width: 100%;
  border-radius: var(--radius-lg);
  box-shadow: 0 24px 48px rgba(15, 23, 42, 0.12);
  border: 1px solid rgba(15, 23, 42, 0.06);
}

.beta {
  background: #fff;
  max-width: 960px;
  margin: 0 auto;
  padding-bottom: clamp(4rem, 12vw, 7rem);
}

.beta-heading {
  text-align: center;
}

.beta-heading h2 {
  font-size: clamp(2rem, 4vw, 2.75rem);
  margin-bottom: 0.5rem;
}

.beta-heading p {
  margin: 0;
  color: var(--accent);
  font-weight: 600;
}

.beta-subtext {
  text-align: center;
  color: var(--text-secondary);
  max-width: 600px;
  margin: 1.5rem auto 0;
}

.beta-form {
  margin: 2.5rem auto 0;
  padding: 2.5rem;
  border-radius: var(--radius-lg);
  border: 1px solid var(--border);
  background: #fff;
  box-shadow: 0 24px 48px rgba(15, 23, 42, 0.08);
  display: grid;
  gap: 1.5rem;
  max-width: 640px;
}

.beta-form h3 {
  margin: 0;
  font-size: 1.75rem;
  text-align: center;
}

.beta-form label {
  display: grid;
  gap: 0.5rem;
  font-weight: 600;
  color: var(--text-primary);
}

.beta-form input,
.beta-form select,
.beta-form textarea {
  padding: 0.85rem 1rem;
  border-radius: var(--radius-sm);
  border: 1px solid rgba(15, 23, 42, 0.15);
  font-size: 1rem;
  font-family: inherit;
  transition: border-color 0.2s ease, box-shadow 0.2s ease;
}

.beta-form input:focus,
.beta-form select:focus,
.beta-form textarea:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 4px rgba(107, 78, 255, 0.15);
}

.beta-form select {
  appearance: none;
  background-image: linear-gradient(45deg, transparent 50%, var(--accent) 50%),
    linear-gradient(135deg, var(--accent) 50%, transparent 50%);
  background-position: calc(100% - 20px) calc(1.1rem), calc(100% - 15px) calc(1.1rem);
  background-size: 6px 6px;
  background-repeat: no-repeat;
}

.beta-form textarea {
  resize: vertical;
  min-height: 120px;
}

.beta-form .btn {
  justify-self: center;
  width: min(100%, 280px);
  position: relative;
  gap: 0.5rem;
}

.button-spinner {
  display: none;
  width: 1rem;
  height: 1rem;
  border-radius: 50%;
  border: 2px solid rgba(255, 255, 255, 0.4);
  border-top-color: #fff;
  animation: spin 0.8s linear infinite;
  margin-left: 0.5rem;
}

.beta-form.is-submitting .button-spinner {
  display: inline-block;
}

.beta-form.is-submitting .button-label {
  opacity: 0.65;
}

.beta-form.is-submitting .btn {
  cursor: wait;
  pointer-events: none;
}

.form-error,
.confirmation {
  display: none;
  margin: 0;
  padding: 1rem 1.25rem;
  border-radius: var(--radius-sm);
  font-weight: 600;
}

.form-error a {
  color: inherit;
  text-decoration: underline;
}

.form-error {
  border-left: 4px solid #f87171;
  background: rgba(248, 113, 113, 0.12);
  color: #b91c1c;
}

.confirmation {
  border-left: 4px solid var(--accent);
  background: rgba(107, 78, 255, 0.08);
  color: var(--text-primary);
}

.form-error.visible,
.confirmation.visible {
  display: block;
}

.footer {
  padding: clamp(2.5rem, 6vw, 4rem) clamp(1.5rem, 4vw, 4rem);
  background: #f8fafc;
  color: var(--text-secondary);
  display: grid;
  gap: 0.5rem;
  text-align: center;
  font-size: 0.95rem;
}

.footer a {
  color: var(--accent);
  font-weight: 600;
}

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

@media (max-width: 768px) {
  .hero {
    padding-top: 2rem;
  }

  .nav {
    flex-direction: column;
    gap: 1rem;
  }

  .step-grid {
    grid-template-columns: 1fr;
  }

  .beta-form {
    padding: 2rem 1.5rem;
  }
}

@keyframes spin {
  to {
    transform: rotate(360deg);
  }
}