:root {
  --color-bg: #0e1116;
  --color-surface: #1b1f26;
  --color-accent: #00aeef;
  --color-success: #22c55e;
  --color-text: #ededed;
  --color-text-muted: #a1a1aa;
  --shadow-soft: 0 18px 45px rgba(0, 0, 0, 0.55);
  --radius-pill: 9999px;
  --radius-card: 18px;
  --transition-fast: 0.18s ease-out;
}

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

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-height: 100vh;
  font-family: 'Inter', system-ui, -apple-system, BlinkMacSystemFont, sans-serif;
  background-color: var(--color-bg);
  color: var(--color-text);
  -webkit-font-smoothing: antialiased;
}

img {
  max-width: 100%;
  height: auto;
  display: block;
}

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

a:hover {
  text-decoration: none;
}

button {
  font-family: inherit;
}

body,
button,
input,
textarea {
  font-size: 16px;
}

.container {
  width: 100%;
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 1.25rem;
}

.section {
  padding: 4.5rem 0;
}

.section-alt {
  background: radial-gradient(circle at top left, rgba(0, 174, 239, 0.08), transparent 55%),
    radial-gradient(circle at bottom right, rgba(34, 197, 94, 0.06), transparent 55%);
}

.section-header {
  max-width: 640px;
  margin: 0 auto 2.5rem;
  text-align: center;
}

.section-header h2 {
  font-size: clamp(1.75rem, 3vw, 2.25rem);
  margin: 0 0 0.75rem;
}

.section-subtitle {
  margin: 0;
  color: var(--color-text-muted);
}

.card {
  background-color: var(--color-surface);
  border-radius: var(--radius-card);
  padding: 1.75rem 1.5rem;
  box-shadow: 0 10px 40px rgba(0, 0, 0, 0.65);
  border: 1px solid rgba(148, 163, 184, 0.12);
  transition: transform var(--transition-fast), box-shadow var(--transition-fast),
    border-color var(--transition-fast), background-color var(--transition-fast);
}

.card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-soft);
  border-color: rgba(0, 174, 239, 0.45);
}

/* Header */

.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  backdrop-filter: blur(18px);
  background: linear-gradient(
      to bottom,
      rgba(15, 23, 42, 0.9),
      rgba(15, 23, 42, 0.8),
      rgba(15, 23, 42, 0.6),
      transparent
    );
  border-bottom: 1px solid rgba(148, 163, 184, 0.3);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: 0.9rem;
  padding-bottom: 0.9rem;
  gap: 1.5rem;
}

.logo {
  display: inline-flex;
  align-items: center;
  gap: 0.65rem;
  font-weight: 600;
  letter-spacing: 0.03em;
}

.logo-mark {
  width: 32px;
  height: 32px;
  border-radius: 12px;
  box-shadow: 0 0 0 1px rgba(15, 23, 42, 0.9), 0 12px 35px rgba(0, 174, 239, 0.55);
}

.logo-text {
  font-size: 1.05rem;
}

.header-nav {
  display: flex;
  align-items: center;
  gap: 1.25rem;
  font-size: 0.95rem;
}

.header-nav a {
  color: var(--color-text-muted);
  padding: 0.25rem 0;
  position: relative;
}

.header-nav a::after {
  content: '';
  position: absolute;
  left: 0;
  bottom: -0.25rem;
  width: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--color-accent), var(--color-success));
  border-radius: 999px;
  transition: width var(--transition-fast);
}

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

.header-nav a:hover::after,
.header-nav a:focus-visible::after {
  width: 100%;
}

/* Hero */

.hero {
  padding-top: 5.75rem;
  padding-bottom: 4.5rem;
  background: radial-gradient(circle at top left, rgba(0, 174, 239, 0.16), transparent 60%),
    radial-gradient(circle at bottom right, rgba(34, 197, 94, 0.16), transparent 55%);
}

.hero-inner {
  display: grid;
  grid-template-columns: minmax(0, 1.2fr) minmax(0, 1fr);
  gap: 3rem;
  align-items: center;
}

.hero-text h1 {
  font-size: clamp(2.4rem, 4vw, 3.1rem);
  line-height: 1.05;
  letter-spacing: -0.04em;
  margin: 0 0 1.25rem;
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.2rem 0.75rem;
  border-radius: var(--radius-pill);
  font-size: 0.8rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--color-text-muted);
  background: rgba(15, 23, 42, 0.9);
  border: 1px solid rgba(148, 163, 184, 0.35);
  margin-bottom: 1rem;
}

.hero-subtitle {
  margin: 0 0 2rem;
  color: var(--color-text-muted);
  max-width: 36rem;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.9rem;
}

.hero-visual {
  position: relative;
}

.hero-image {
  max-width: 360px;
  margin-left: auto;
  border-radius: 32px;
  box-shadow: 0 32px 120px rgba(0, 0, 0, 0.9);
  border: 1px solid rgba(148, 163, 184, 0.35);
}

.hero-visual::before {
  content: '';
  position: absolute;
  inset: 8%;
  border-radius: 40px;
  background: radial-gradient(circle at 10% 10%, rgba(0, 174, 239, 0.22), transparent 65%),
    radial-gradient(circle at 90% 90%, rgba(34, 197, 94, 0.24), transparent 60%);
  filter: blur(30px);
  opacity: 0.75;
  z-index: -1;
}

/* Buttons */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.4rem;
  padding: 0.75rem 1.75rem;
  border-radius: var(--radius-pill);
  font-weight: 500;
  font-size: 0.95rem;
  border: 1px solid transparent;
  cursor: pointer;
  transition: background-color var(--transition-fast), color var(--transition-fast),
    box-shadow var(--transition-fast), transform var(--transition-fast),
    border-color var(--transition-fast);
  white-space: nowrap;
}

.btn-primary {
  background: var(--color-accent);
  color: #0e1116;
  box-shadow: 0 16px 40px rgba(0, 174, 239, 0.45);
}

.btn-primary:hover,
.btn-primary:focus-visible {
  background: #32c3ff;
  transform: translateY(-1px);
  box-shadow: 0 20px 50px rgba(0, 174, 239, 0.6);
}

.btn-secondary {
  background: transparent;
  color: var(--color-accent);
  border-color: rgba(0, 174, 239, 0.75);
}

.btn-secondary:hover,
.btn-secondary:focus-visible {
  background: rgba(15, 23, 42, 0.85);
  border-color: #32c3ff;
  color: #e5f6ff;
}

.btn:focus-visible {
  outline: 2px solid #f97316;
  outline-offset: 2px;
}

/* Features */

.features-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1.75rem;
}

.feature-card h3 {
  margin: 0 0 0.5rem;
}

.feature-card p {
  margin: 0;
  color: var(--color-text-muted);
}

.feature-icon {
  width: 40px;
  height: 40px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 16px;
  margin-bottom: 0.9rem;
  font-size: 1.4rem;
  background: radial-gradient(circle at 20% 0, rgba(0, 174, 239, 0.22), transparent 70%),
    rgba(15, 23, 42, 0.95);
  border: 1px solid rgba(148, 163, 184, 0.5);
}

/* How it works */

.steps {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1.75rem;
}

.step h3 {
  margin: 0 0 0.5rem;
}

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

.step-icon {
  width: 34px;
  height: 34px;
  border-radius: 999px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 0.75rem;
  font-size: 0.95rem;
  background: rgba(15, 23, 42, 0.95);
  border: 1px solid rgba(148, 163, 184, 0.6);
}

.privacy-note {
  margin-top: 2rem;
  font-size: 0.92rem;
  color: var(--color-text-muted);
  padding: 0.9rem 1rem;
  border-radius: 14px;
  background: rgba(15, 23, 42, 0.9);
  border: 1px dashed rgba(148, 163, 184, 0.6);
}

/* Pricing */

.pricing-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 1.75rem;
}

.pricing-card h3 {
  margin: 0 0 0.35rem;
}

.price {
  margin: 0 0 0.25rem;
  font-size: 1.4rem;
  font-weight: 600;
}

.price-note {
  margin: 0;
  font-size: 0.95rem;
  color: var(--color-text-muted);
}

.footnote {
  margin: 1.75rem 0 0;
  font-size: 0.9rem;
  color: var(--color-text-muted);
}

.pricing-cta {
  margin-top: 1.75rem;
  display: flex;
  justify-content: center;
}

/* Download strip */

.download-strip {
  background: radial-gradient(circle at top, rgba(0, 174, 239, 0.36), transparent 60%),
    #020617;
  padding: 2rem 0;
  border-top: 1px solid rgba(148, 163, 184, 0.25);
  border-bottom: 1px solid rgba(148, 163, 184, 0.25);
}

.download-inner {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: center;
  gap: 1.25rem;
}

.download-text {
  margin: 0;
  font-weight: 500;
}

.download-badge {
  height: 52px;
  border-radius: 999px;
  border: 1px solid rgba(15, 23, 42, 0.95);
  box-shadow: 0 18px 40px rgba(0, 0, 0, 0.7);
}

.download-badge-link:hover .download-badge,
.download-badge-link:focus-visible .download-badge {
  transform: translateY(-1px);
  box-shadow: 0 22px 55px rgba(0, 0, 0, 0.9);
}

/* Contact */

.contact-inner {
  display: grid;
  grid-template-columns: minmax(0, 1.1fr) minmax(0, 1fr);
  gap: 2.5rem;
  align-items: flex-start;
}

.contact-copy h2 {
  margin: 0 0 0.75rem;
}

.contact-copy .section-subtitle {
  margin-bottom: 1.25rem;
}

.contact-email a {
  color: var(--color-accent);
  font-weight: 500;
}

.contact-form {
  background-color: var(--color-surface);
  padding: 1.75rem 1.5rem;
  border-radius: var(--radius-card);
  box-shadow: 0 18px 50px rgba(0, 0, 0, 0.7);
  border: 1px solid rgba(148, 163, 184, 0.25);
}

.form-field {
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
  margin-bottom: 1.1rem;
}

.form-field label {
  font-size: 0.9rem;
  color: var(--color-text-muted);
}

.form-field input,
.form-field textarea {
  border-radius: 0.9rem;
  border: 1px solid rgba(148, 163, 184, 0.45);
  background-color: rgba(15, 23, 42, 0.9);
  color: var(--color-text);
  padding: 0.6rem 0.75rem;
  outline: none;
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast),
    background-color var(--transition-fast);
}

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

.form-field input::placeholder,
.form-field textarea::placeholder {
  color: rgba(148, 163, 184, 0.8);
}

.form-field input:focus-visible,
.form-field textarea:focus-visible {
  border-color: var(--color-accent);
  box-shadow: 0 0 0 1px rgba(0, 174, 239, 0.7);
  background-color: rgba(15, 23, 42, 0.96);
}

.form-submit {
  width: 100%;
}

/* FAQ */

.faq-card {
  padding: 2rem 1.75rem;
}

.faq-section + .faq-section {
  margin-top: 2.5rem;
}

.faq-section header {
  display: flex;
  align-items: center;
  gap: 0.55rem;
  margin-bottom: 0.9rem;
}

.faq-section .icon {
  font-size: 1.1rem;
}

.faq-section h2 {
  margin: 0;
  font-size: 1.15rem;
}

.faq-nav {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-bottom: 1.5rem;
}

.faq-nav a {
  font-size: 0.85rem;
  padding: 0.35rem 0.9rem;
  border-radius: 999px;
  border: 1px solid rgba(148, 163, 184, 0.5);
  color: var(--color-text-muted);
  background-color: rgba(15, 23, 42, 0.95);
}

.faq-nav a:hover,
.faq-nav a:focus-visible {
  color: var(--color-text);
  border-color: var(--color-accent);
}

.qa-list {
  display: flex;
  flex-direction: column;
  gap: 1.1rem;
}

.qa-list details {
  background-color: rgba(15, 23, 42, 0.95);
  border-radius: 0.9rem;
  border: 1px solid rgba(148, 163, 184, 0.45);
  padding: 0.8rem 1rem 0.85rem;
}

.qa-list summary {
  list-style: none;
  cursor: default;
  font-weight: 500;
  font-size: 0.98rem;
  margin: 0;
}

.qa-list summary::-webkit-details-marker {
  display: none;
}

.qa-list .answer {
  margin-top: 0.4rem;
  font-size: 0.95rem;
  line-height: 1.6;
  color: var(--color-text-muted);
  white-space: pre-line;
}

.qa-list a {
  color: var(--color-accent);
}

/* Footer */

.site-footer {
  padding: 1.75rem 0 2rem;
  background: #020617;
  border-top: 1px solid rgba(148, 163, 184, 0.25);
}

.footer-inner {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  font-size: 0.9rem;
  color: var(--color-text-muted);
}

.footer-nav {
  display: flex;
  flex-wrap: wrap;
  gap: 1.25rem;
}

.footer-nav a {
  color: var(--color-text-muted);
}

.footer-nav a:hover,
.footer-nav a:focus-visible {
  color: var(--color-text);
}

/* Responsive */

@media (max-width: 900px) {
  .hero-inner {
    grid-template-columns: minmax(0, 1.1fr);
  }

  .hero-visual {
    order: -1;
    max-width: 320px;
    margin: 0 auto 1.5rem;
  }

  .hero-image {
    margin: 0 auto;
  }

  .header-nav {
    font-size: 0.9rem;
    gap: 0.85rem;
  }
}

@media (max-width: 768px) {
  .section {
    padding: 3.25rem 0;
  }

  .hero {
    padding-top: 4.5rem;
    padding-bottom: 3.25rem;
  }

  .features-grid {
    grid-template-columns: minmax(0, 1fr);
  }

  .steps {
    grid-template-columns: minmax(0, 1fr);
  }

  .pricing-grid {
    grid-template-columns: minmax(0, 1fr);
  }

  .contact-inner {
    grid-template-columns: minmax(0, 1fr);
  }

  .header-inner {
    padding-top: 0.7rem;
    padding-bottom: 0.7rem;
  }

  .header-nav {
    gap: 0.75rem;
  }
}

@media (max-width: 520px) {
  .header-inner {
    flex-direction: column;
    align-items: flex-start;
  }

  .header-nav {
    width: 100%;
    justify-content: space-between;
    flex-wrap: wrap;
  }

  .hero-actions {
    flex-direction: column;
    align-items: stretch;
  }

  .hero-actions .btn {
    width: 100%;
    justify-content: center;
  }

  .download-inner {
    flex-direction: column;
  }
}