:root {
  --bg: #050816;
  --bg-elevated: #0c1020;
  --bg-soft: #12172b;
  --accent: #5b8dff;
  --accent-soft: rgba(91, 141, 255, 0.14);
  --accent-secondary: #22c55e;
  --accent-secondary-soft: rgba(34, 197, 94, 0.16);
  --text: #f9fafb;
  --text-muted: #9ca3af;
  --border-soft: rgba(148, 163, 184, 0.35);
  --shadow-soft: 0 18px 45px rgba(15, 23, 42, 0.7);
  --radius-lg: 18px;
  --radius-md: 12px;
  --radius-pill: 999px;
  --transition-fast: 0.18s ease-out;
  --transition-medium: 0.22s ease-out;
}

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

html,
body {
  margin: 0;
  padding: 0;
  font-family: "Inter", system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI",
    sans-serif;
  background: radial-gradient(circle at top, #111827 0, #020617 48%, #000 100%);
  color: var(--text);
  scroll-behavior: smooth;
}

body {
  min-height: 100vh;
}

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

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

.container {
  width: 100%;
  max-width: 1120px;
  margin: 0 auto;
  padding: 0 16px;
}

/* Header */

.header {
  position: sticky;
  top: 0;
  z-index: 40;
  backdrop-filter: blur(16px);
  background: linear-gradient(
    to bottom,
    rgba(3, 7, 18, 0.9),
    rgba(3, 7, 18, 0.65),
    transparent
  );
  border-bottom: 1px solid rgba(148, 163, 184, 0.24);
}

.header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 0;
}

.logo {
  display: flex;
  align-items: center;
  gap: 10px;
}

.logo__icon {
  width: 32px;
  height: 32px;
  border-radius: 11px;
  background: radial-gradient(circle at 30% 20%, #22c55e, #2563eb 52%, #1e293b);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 14px;
  font-weight: 700;
  letter-spacing: 0.06em;
}

.logo__text {
  font-weight: 600;
  font-size: 17px;
}

.nav {
  display: flex;
  align-items: center;
  gap: 18px;
}

.nav__link {
  font-size: 14px;
  color: var(--text-muted);
  padding: 6px 10px;
  border-radius: 999px;
  transition: color var(--transition-fast),
    background-color var(--transition-fast), transform var(--transition-fast);
}

.nav__link:hover {
  color: var(--text);
  background: rgba(15, 23, 42, 0.7);
  transform: translateY(-1px);
}

.nav__link--accent {
  border: 1px solid rgba(148, 163, 184, 0.4);
}

/* Hero */

.hero {
  padding: 64px 0 32px;
}

.hero__inner {
  display: grid;
  grid-template-columns: minmax(0, 1.4fr) minmax(0, 1fr);
  gap: 40px;
  align-items: center;
}

.hero__title {
  font-size: clamp(30px, 4vw, 40px);
  line-height: 1.1;
  margin: 0 0 16px;
}

.hero__title-gradient {
  display: inline-block;
  background: linear-gradient(120deg, #60a5fa, #22c55e, #06b6d4);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.hero__subtitle {
  margin: 0 0 22px;
  color: var(--text-muted);
  font-size: 15px;
  max-width: 520px;
}

.hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-bottom: 16px;
}

.hero__meta {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  font-size: 13px;
  color: var(--text-muted);
}

.hero__meta span {
  padding: 4px 10px;
  border-radius: 999px;
  background: rgba(15, 23, 42, 0.75);
  border: 1px solid rgba(148, 163, 184, 0.35);
}

.hero__links {
  margin: 16px 0 0;
  font-size: 14px;
  color: var(--text-muted);
}

.hero__links a {
  color: var(--accent);
  margin-right: 1em;
}

.hero__links a:hover {
  color: var(--text);
  text-decoration: underline;
}

.hero__card {
  background: radial-gradient(circle at top left, #0f172a 0, #020617 55%);
  border-radius: 22px;
  padding: 18px 18px 14px;
  border: 1px solid rgba(148, 163, 184, 0.4);
  box-shadow: var(--shadow-soft);
  position: relative;
  overflow: hidden;
}

.hero__card::before {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background: radial-gradient(
    circle at top right,
    rgba(56, 189, 248, 0.16),
    transparent 55%
  );
}

.hero-card__header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 8px;
}

.hero-card__title {
  font-size: 14px;
  color: var(--text-muted);
}

.hero-card__badge {
  font-size: 12px;
  padding: 3px 8px;
  border-radius: 999px;
  background: rgba(22, 163, 74, 0.16);
  color: #bbf7d0;
  border: 1px solid rgba(34, 197, 94, 0.45);
}

.hero-card__body {
  position: relative;
  z-index: 1;
}

.hero-card__footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-top: 10px;
  font-size: 12px;
  color: var(--text-muted);
}

.hero-card__dot {
  width: 8px;
  height: 8px;
  border-radius: 999px;
  background: #22c55e;
  box-shadow: 0 0 12px rgba(34, 197, 94, 0.8);
}

.hero-card__label {
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

.hero-card__label::before {
  content: "";
  width: 9px;
  height: 9px;
  border-radius: 999px;
  background: rgba(56, 189, 248, 0.15);
  border: 1px solid rgba(96, 165, 250, 0.8);
}

.code-block {
  margin: 0;
  padding: 10px 12px;
  border-radius: 14px;
  background: radial-gradient(circle at top left, #020617, #020617) padding-box,
    linear-gradient(135deg, rgba(56, 189, 248, 0.3), rgba(129, 140, 248, 0.3))
      border-box;
  border: 1px solid transparent;
  font-family: "JetBrains Mono", ui-monospace, SFMono-Regular, Menlo, Monaco,
    Consolas, "Liberation Mono", "Courier New", monospace;
  font-size: 12px;
  line-height: 1.5;
  color: #e5e7eb;
  max-height: 230px;
  overflow: auto;
}

.code-block code {
  white-space: pre;
}

/* Buttons */

.btn {
  border: none;
  cursor: pointer;
  padding: 9px 16px;
  border-radius: var(--radius-pill);
  font-size: 14px;
  font-weight: 500;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  transition: background-color var(--transition-medium),
    color var(--transition-medium), box-shadow var(--transition-medium),
    transform var(--transition-fast), border-color var(--transition-medium);
  white-space: nowrap;
}

.btn--primary {
  background: linear-gradient(135deg, #4f46e5, #22c55e);
  color: white;
  box-shadow: 0 12px 30px rgba(79, 70, 229, 0.5);
}

.btn--primary:hover {
  transform: translateY(-1px);
  box-shadow: 0 18px 40px rgba(79, 70, 229, 0.7);
}

.btn--ghost {
  background: transparent;
  color: var(--text);
  border: 1px solid rgba(148, 163, 184, 0.45);
}

.btn--ghost:hover {
  background: rgba(15, 23, 42, 0.7);
}

.btn--outline {
  background: rgba(15, 23, 42, 0.8);
  color: var(--text);
  border: 1px solid rgba(148, 163, 184, 0.7);
}

.btn--outline:hover {
  background: rgba(15, 23, 42, 0.9);
}

.btn--full {
  width: 100%;
}

/* Sections */

.section {
  padding: 40px 0;
}

.section--muted {
  background: radial-gradient(
      circle at top left,
      rgba(15, 23, 42, 0.9),
      rgba(15, 23, 42, 0.95)
    ),
    radial-gradient(circle at bottom right, #020617, #020617);
  border-top: 1px solid rgba(15, 23, 42, 0.9);
  border-bottom: 1px solid rgba(15, 23, 42, 0.9);
}

.section__title {
  font-size: 24px;
  margin: 0 0 8px;
}

.section__subtitle {
  margin: 0 0 24px;
  color: var(--text-muted);
  max-width: 620px;
  font-size: 15px;
}

/* Features */

.features-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
}

.feature-card {
  background: radial-gradient(circle at top, #020617, #020617);
  border-radius: var(--radius-md);
  padding: 16px 14px 14px;
  border: 1px solid var(--border-soft);
  position: relative;
  overflow: hidden;
  transition: transform var(--transition-fast),
    box-shadow var(--transition-medium), border-color var(--transition-medium),
    background var(--transition-medium);
}

.feature-card::before {
  content: "";
  position: absolute;
  inset: -30%;
  opacity: 0;
  background: radial-gradient(
    circle at top,
    rgba(56, 189, 248, 0.18),
    transparent 60%
  );
  transition: opacity var(--transition-medium);
}

.feature-card:hover {
  transform: translateY(-3px);
  box-shadow: 0 16px 40px rgba(15, 23, 42, 0.9);
  border-color: rgba(129, 140, 248, 0.7);
}

.feature-card:hover::before {
  opacity: 1;
}

.feature-card__icon {
  width: 28px;
  height: 28px;
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 12px;
  font-weight: 600;
  margin-bottom: 10px;
}

.feature-card__icon--green {
  background: var(--accent-secondary-soft);
  color: #bbf7d0;
}

.feature-card__icon--blue {
  background: var(--accent-soft);
  color: #bfdbfe;
}

.feature-card__icon--purple {
  background: rgba(129, 140, 248, 0.26);
  color: #e0e7ff;
}

.feature-card__icon--orange {
  background: rgba(251, 146, 60, 0.24);
  color: #fed7aa;
}

.feature-card__icon--cyan {
  background: rgba(45, 212, 191, 0.23);
  color: #a5f3fc;
}

.feature-card__icon--pink {
  background: rgba(236, 72, 153, 0.23);
  color: #f9a8d4;
}

.feature-card__title {
  margin: 0 0 6px;
  font-size: 15px;
}

.feature-card__text {
  margin: 0;
  font-size: 13px;
  color: var(--text-muted);
}

/* Pricing */

.pricing-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
}

.pricing-card {
  background: radial-gradient(circle at top, #020617, #020617);
  border-radius: var(--radius-lg);
  padding: 18px 16px 16px;
  border: 1px solid var(--border-soft);
  position: relative;
  overflow: hidden;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.pricing-card--highlight {
  background: radial-gradient(circle at top, #1e293b, #020617);
  border-color: rgba(96, 165, 250, 0.9);
  box-shadow: 0 18px 48px rgba(37, 99, 235, 0.5);
}

.pricing-card__badge {
  position: absolute;
  top: 14px;
  right: 14px;
  font-size: 11px;
  padding: 3px 8px;
  border-radius: 999px;
  background: rgba(252, 211, 77, 0.1);
  color: #facc15;
  border: 1px solid rgba(250, 204, 21, 0.6);
}

.pricing-card__title {
  margin: 0;
  font-size: 16px;
}

.pricing-card__subtitle {
  margin: 0;
  font-size: 13px;
  color: var(--text-muted);
}

.pricing-card__price {
  margin: 4px 0 0;
  font-size: 18px;
  font-weight: 600;
}

.pricing-card__list {
  list-style: none;
  padding: 0;
  margin: 10px 0 12px;
  font-size: 13px;
  color: var(--text-muted);
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.pricing-card__list li::before {
  content: "•";
  color: #4ade80;
  margin-right: 6px;
}

.pricing-card .btn {
  margin-top: auto;
}

/* FAQ */

.faq {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.faq-item {
  border-radius: 14px;
  background: rgba(15, 23, 42, 0.9);
  border: 1px solid rgba(148, 163, 184, 0.45);
  overflow: hidden;
}

.faq-item__question {
  width: 100%;
  background: transparent;
  border: none;
  padding: 12px 14px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  text-align: left;
  color: inherit;
  cursor: pointer;
  font-size: 14px;
}

.faq-item__icon {
  width: 22px;
  height: 22px;
  border-radius: 999px;
  border: 1px solid rgba(148, 163, 184, 0.6);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 14px;
  transition: transform var(--transition-fast), background var(--transition-fast);
}

.faq-item--open .faq-item__icon {
  transform: rotate(45deg);
  background: rgba(148, 163, 184, 0.15);
}

.faq-item__answer {
  max-height: 0;
  overflow: hidden;
  padding: 0 14px;
  color: var(--text-muted);
  font-size: 13px;
  transition: max-height 0.24s ease-out, padding-bottom 0.2s ease-out;
}

.faq-item--open .faq-item__answer {
  padding-bottom: 10px;
}

/* Contact */

.contact {
  display: grid;
  grid-template-columns: minmax(0, 1.1fr) minmax(0, 1fr);
  gap: 32px;
  align-items: flex-start;
}

.contact__info .section__title {
  margin-bottom: 10px;
}

.contact__list {
  list-style: none;
  padding: 0;
  margin: 12px 0 0;
  font-size: 14px;
  color: var(--text-muted);
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.contact-form {
  background: radial-gradient(circle at top, #020617, #020617);
  border-radius: var(--radius-lg);
  padding: 16px 16px 14px;
  border: 1px solid var(--border-soft);
  box-shadow: var(--shadow-soft);
}

.contact-form__group {
  margin-bottom: 12px;
}

.contact-form__group label {
  display: block;
  font-size: 13px;
  margin-bottom: 5px;
}

.contact-form__group--inline {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
}

.contact-form__group--inline label {
  margin-bottom: 0;
}

.contact-form__group--inline select {
  max-width: 200px;
}

.contact-form input,
.contact-form textarea,
.contact-form select {
  width: 100%;
  padding: 8px 10px;
  border-radius: 10px;
  border: 1px solid rgba(55, 65, 81, 0.9);
  background: rgba(15, 23, 42, 0.85);
  color: var(--text);
  font-size: 13px;
  outline: none;
  transition: border-color var(--transition-fast),
    box-shadow var(--transition-fast), background-color var(--transition-fast);
}

.contact-form input::placeholder,
.contact-form textarea::placeholder {
  color: rgba(148, 163, 184, 0.6);
}

.contact-form input:focus,
.contact-form textarea:focus,
.contact-form select:focus {
  border-color: rgba(96, 165, 250, 0.9);
  box-shadow: 0 0 0 1px rgba(37, 99, 235, 0.6);
}

.contact-form__error {
  display: block;
  margin-top: 4px;
  font-size: 11px;
  color: #fca5a5;
  min-height: 14px;
}

.contact-form__note {
  margin-top: 8px;
  font-size: 11px;
  color: var(--text-muted);
}

.contact-form__note--success {
  color: #bbf7d0;
}

.contact-form__note--error {
  color: #fecaca;
}

/* Footer */

.footer {
  padding: 20px 0 24px;
  border-top: 1px solid rgba(15, 23, 42, 0.9);
  background: radial-gradient(circle at top, #020617, #020617);
}

.footer__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 12px;
  color: var(--text-muted);
}

.footer__meta {
  opacity: 0.9;
}

/* Responsive */

@media (max-width: 960px) {
  .hero__inner {
    grid-template-columns: minmax(0, 1fr);
  }

  .hero__card {
    order: -1;
  }

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

  .contact {
    gap: 24px;
  }
}

@media (max-width: 720px) {
  .header__inner {
    gap: 12px;
  }

  .nav {
    gap: 8px;
  }

  .nav__link {
    font-size: 13px;
    padding: 4px 7px;
  }

  .hero {
    padding-top: 40px;
  }

  .hero__subtitle {
    max-width: none;
  }

  .section {
    padding: 32px 0;
  }

  .contact-form__group--inline {
    flex-direction: column;
    align-items: flex-start;
  }
}

@media (max-width: 540px) {
  .header__inner {
    flex-direction: column;
    align-items: flex-start;
  }

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

  .footer__inner {
    flex-direction: column;
    gap: 6px;
  }
}