:root {
  color-scheme: dark;
  --color-bg: #0c1224;
  --color-bg-alt: radial-gradient(circle at 15% 20%, rgba(98, 180, 255, 0.08), transparent 32%),
    radial-gradient(circle at 80% 0%, rgba(184, 146, 255, 0.16), transparent 40%),
    #0b1020;
  --color-surface: rgba(14, 20, 36, 0.9);
  --color-text: #e8eefc;
  --color-muted: #9cb4d8;
  --color-dark: #060917;
  --color-border: rgba(122, 142, 187, 0.35);
  --color-gradient-start: #5B8CFF;
  --color-gradient-end: #5AE6FF;
  --shadow-soft: 0 18px 32px rgba(4, 10, 26, 0.38);
  --radius-lg: 18px;
  --radius-md: 12px;
  --radius-sm: 8px;
  --container-max: 1240px;
  --transition-base: 220ms ease;
  --font-family: 'Inter', 'Space Grotesk', -apple-system, 'Segoe UI', Roboto, Arial, sans-serif;
}

* {
  box-sizing: border-box;
}

html {
  font-size: 16px;
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: var(--font-family);
  color: var(--color-text);
  background: var(--color-bg);
  background-image: var(--color-bg-alt);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

p {
  color: var(--color-muted);
}

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

svg {
  display: block;
}

.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

.container {
  width: min(100% - 2rem, var(--container-max));
  margin: 0 auto;
}

.section {
  padding: 4.5rem 0;
}

.section__subtitle {
  text-transform: uppercase;
  letter-spacing: 0.12em;
  font-size: 0.78rem;
  color: var(--color-muted);
  margin: 0 0 0.75rem;
}

.section__title {
  margin: 0 0 1.5rem;
  font-size: clamp(2.1rem, 2.6vw, 2.9rem);
  line-height: 1.16;
  letter-spacing: -0.01em;
}

.header {
  position: sticky;
  top: 0;
  z-index: 100;
  backdrop-filter: blur(20px);
  background: linear-gradient(135deg, rgba(9, 14, 30, 0.92), rgba(16, 24, 52, 0.88));
  border-bottom: 1px solid rgba(107, 140, 215, 0.4);
  box-shadow: 0 18px 42px rgba(4, 10, 26, 0.5);
  transition: background var(--transition-base), border-color var(--transition-base), box-shadow var(--transition-base);
  --nav-bg: rgba(19, 28, 56, 0.78);
  --nav-border: rgba(137, 174, 255, 0.4);
  --nav-text: #e8eefc;
  --nav-hover-bg: rgba(90, 230, 255, 0.16);
}

.header.is-scrolled {
  background: linear-gradient(135deg, rgba(7, 18, 42, 0.95), rgba(12, 49, 104, 0.9));
  border-bottom-color: rgba(106, 165, 255, 0.55);
  box-shadow: 0 22px 48px rgba(2, 12, 32, 0.65);
  --nav-bg: linear-gradient(120deg, rgba(91, 140, 255, 0.22), rgba(90, 230, 255, 0.18));
  --nav-border: rgba(117, 151, 230, 0.65);
  --nav-text: #f8fbff;
  --nav-hover-bg: rgba(184, 146, 255, 0.25);
}

.header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 1rem 0.75rem;
  transition: padding var(--transition-base);
}

.header.is-scrolled .header__inner {
  padding: 0.7rem 0.75rem;
}

.logo {
  display: inline-flex;
  align-items: center;
  gap: 0.65rem;
  font-weight: 700;
  color: inherit;
  text-decoration: none;
  letter-spacing: 0.02em;
}

.logo__text {
  font-size: 1.05rem;
  text-transform: lowercase;
  display: inline-flex;
  align-items: baseline;
  gap: 0.15rem;
}

.logo__accent {
  background: linear-gradient(135deg, #7ee2ff, #b892ff);
  -webkit-background-clip: text;
  color: transparent;
  font-weight: 800;
}

.nav {
  position: relative;
}

.nav__toggle {
  display: inline-flex;
  flex-direction: column;
  gap: 0.25rem;
  padding: 0.5rem;
  background: transparent;
  border: 1px solid transparent;
  border-radius: var(--radius-sm);
  cursor: pointer;
}

.nav__toggle:focus-visible {
  outline: 3px solid var(--color-gradient-start);
  outline-offset: 2px;
}

.nav__toggle-line {
  width: 1.5rem;
  height: 2px;
  background: var(--color-text);
  border-radius: 999px;
}

.nav__list {
  position: absolute;
  right: 0;
  top: calc(100% + 0.5rem);
  list-style: none;
  margin: 0;
  padding: 1rem;
  background: var(--color-surface);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-soft);
  display: none;
  min-width: 220px;
}

.nav__list a {
  display: block;
  padding: 0.5rem 0.75rem;
  color: var(--color-text);
  text-decoration: none;
  font-weight: 600;
  border-radius: var(--radius-sm);
  letter-spacing: 0.04em;
  text-transform: uppercase;
  font-size: 0.92rem;
  transition: color var(--transition-base), background var(--transition-base), transform var(--transition-base);
}

.nav__list a:focus-visible,
.nav__list a:hover {
  background: rgba(91, 140, 255, 0.12);
  box-shadow: 0 0 0 1px rgba(110, 231, 255, 0.35), 0 8px 18px rgba(91, 140, 255, 0.15);
  transform: translateY(-1px);
}

.nav__list.is-open {
  display: block;
}

.header__actions {
  display: none;
  gap: 0.75rem;
  align-items: center;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  border-radius: 999px;
  border: 1px solid transparent;
  text-decoration: none;
  letter-spacing: 0.01em;
  transition: transform var(--transition-base), box-shadow var(--transition-base), background var(--transition-base), color var(--transition-base);
  cursor: pointer;
  will-change: transform, box-shadow;
}

.btn:disabled {
  opacity: 0.6;
  cursor: not-allowed;
}

.btn:focus-visible {
  outline: 3px solid var(--color-gradient-start);
  outline-offset: 2px;
}

.btn--primary {
  background: linear-gradient(120deg, var(--color-gradient-start), var(--color-gradient-end));
  color: #0b1020;
  box-shadow: 0 18px 36px rgba(82, 164, 255, 0.35);
}

.btn--primary:hover {
  transform: translateY(-1px) scale(1.01);
  box-shadow: 0 22px 44px rgba(90, 230, 255, 0.3);
}

.btn--ghost {
  background: rgba(95, 140, 255, 0.06);
  border-color: rgba(91, 140, 255, 0.35);
  color: #e8eefc;
}

.btn--ghost:hover {
  background: rgba(91, 140, 255, 0.18);
  box-shadow: 0 18px 28px rgba(82, 164, 255, 0.16);
}

.btn--md {
  min-height: 2.75rem;
  padding: 0 1.5rem;
  font-size: 0.95rem;
}

.btn--lg {
  min-height: 3rem;
  padding: 0 2rem;
  font-size: 1.05rem;
}

.hero {
  padding: 7rem 0 4.5rem;
  position: relative;
  overflow: hidden;
}

.hero::before,
.hero::after {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
}

.hero::before {
  background: radial-gradient(circle at 18% 10%, rgba(90, 230, 255, 0.25), transparent 35%),
    radial-gradient(circle at 82% 6%, rgba(184, 146, 255, 0.25), transparent 40%);
  opacity: 0.85;
}

.hero::after {
  background: linear-gradient(135deg, rgba(10, 16, 34, 0.9) 0%, rgba(10, 16, 34, 0.3) 48%, rgba(10, 16, 34, 0.1) 100%);
}

.hero__content {
  position: relative;
  z-index: 1;
  display: grid;
  gap: 2.5rem;
  align-items: center;
}

.hero__text h1 {
  font-size: clamp(2.6rem, 5vw, 3.8rem);
  margin-bottom: 1.25rem;
  letter-spacing: -0.015em;
}

.hero__subtitle {
  margin-bottom: 1.75rem;
  color: #c5d4f5;
  font-size: 1.05rem;
  max-width: 640px;
}

.hero__kicker {
  margin: 0 0 0.65rem;
  font-size: 0.9rem;
  color: #86b7ff;
  letter-spacing: 0.16em;
  text-transform: uppercase;
}

.hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  margin-bottom: 1.5rem;
}

.hero__badges {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
}

.hero__visual {
  justify-self: center;
  position: relative;
}

.hero__visual::after {
  content: "";
  position: absolute;
  inset: 8% 12%;
  background: radial-gradient(circle, rgba(90, 230, 255, 0.1) 0%, rgba(9, 12, 28, 0.1) 80%);
  filter: blur(32px);
  z-index: 0;
}

.hero__illustration {
  position: relative;
  max-width: 440px;
  width: 100%;
  filter: drop-shadow(0 28px 40px rgba(10, 17, 36, 0.55));
  animation: float 8s ease-in-out infinite;
}

.badge {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.45rem 1.05rem;
  border-radius: 999px;
  background: linear-gradient(135deg, rgba(91, 140, 255, 0.2), rgba(90, 230, 255, 0.2));
  color: #dfe9ff;
  font-size: 0.9rem;
  font-weight: 700;
  box-shadow: 0 12px 24px rgba(4, 10, 26, 0.25);
}

.trust__content {
  margin-bottom: 2.5rem;
  text-align: center;
}

.profile__grid {
  margin-top: 1.5rem;
}

.profile__card h3 {
  margin-top: 0;
  margin-bottom: 1rem;
}

.description-list {
  margin: 0;
  display: grid;
  gap: 0.75rem;
}

.description-list__row {
  display: grid;
  gap: 0.5rem;
}

.description-list__row dt {
  font-weight: 700;
  color: var(--color-muted);
}

.description-list__row dd {
  margin: 0;
  color: var(--color-text);
}

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

.trust__logo {
  padding: 1.25rem;
  border-radius: var(--radius-lg);
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  box-shadow: var(--shadow-soft);
  text-align: center;
  font-weight: 600;
}

.grid {
  display: grid;
  gap: 1.5rem;
}

.grid--2 {
  grid-template-columns: repeat(1, minmax(0, 1fr));
}

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

.card {
  background: linear-gradient(145deg, rgba(14, 20, 36, 0.92), rgba(17, 28, 52, 0.82));
  border-radius: var(--radius-lg);
  border: 1px solid rgba(137, 174, 255, 0.25);
  padding: 1.75rem;
  box-shadow: 0 22px 36px rgba(4, 10, 26, 0.38);
  transition: transform var(--transition-base), box-shadow var(--transition-base), border-color var(--transition-base);
}

.card__icon {
  width: 56px;
  height: 56px;
  margin-bottom: 1.5rem;
}

.card__icon svg {
  width: 100%;
  height: 100%;
}

.card__icon--solid {
  background: rgba(91, 140, 255, 0.1);
  border-radius: var(--radius-md);
  padding: 0.5rem;
}

.card__metric {
  font-weight: 700;
  color: var(--color-gradient-start);
  margin-bottom: 0.75rem;
}

.card__price {
  font-size: 1.5rem;
  font-weight: 700;
  margin: 0.5rem 0 1rem;
}

.card__ribbon {
  position: absolute;
  top: 1.25rem;
  right: 1.5rem;
  background: linear-gradient(135deg, var(--color-gradient-start), var(--color-gradient-end));
  color: #fff;
  padding: 0.25rem 0.75rem;
  border-radius: 999px;
  font-size: 0.75rem;
  font-weight: 600;
}

.card--plan {
  position: relative;
  padding-top: 3rem;
  display: flex;
  flex-direction: column;
  height: 100%;
  background: linear-gradient(180deg, rgba(19, 28, 52, 0.95), rgba(14, 22, 44, 0.9));
}

.card--plan ul {
  list-style: none;
  padding: 0;
  margin: 0 0 1.5rem;
  display: grid;
  gap: 0.75rem;
  color: var(--color-muted);
  flex: 1;
}

.card--plan-popular {
  border-color: rgba(91, 140, 255, 0.6);
  box-shadow: 0 26px 52px rgba(91, 140, 255, 0.28);
}

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

.deployment__highlight {
  margin-top: 2.5rem;
  background: linear-gradient(135deg, rgba(90, 230, 255, 0.12), rgba(91, 140, 255, 0.14));
}

.cases__grid .card {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.pricing__plans {
  display: grid;
  gap: 1.5rem;
  align-items: stretch;
  grid-auto-rows: 1fr;
}

.card:hover {
  transform: translateY(-4px);
  box-shadow: 0 26px 48px rgba(4, 10, 26, 0.55);
  border-color: rgba(90, 230, 255, 0.45);
}

.models__list {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin: 1.5rem 0;
}

.chip {
  display: inline-flex;
  align-items: center;
  padding: 0.4rem 0.85rem;
  border-radius: 999px;
  background: rgba(34, 211, 238, 0.1);
  font-weight: 600;
  color: var(--color-text);
  font-size: 0.9rem;
}

.accordion__item {
  border-bottom: 1px solid rgba(17, 24, 39, 0.1);
}

.accordion__header {
  width: 100%;
  text-align: left;
  padding: 1rem 0;
  background: transparent;
  border: none;
  font-size: 1.05rem;
  font-weight: 600;
  display: flex;
  justify-content: space-between;
  align-items: center;
  cursor: pointer;
}

.accordion__header:focus-visible {
  outline: 3px solid var(--color-gradient-end);
  outline-offset: 2px;
}

.accordion__header::after {
  content: '+';
  font-size: 1.5rem;
  color: var(--color-gradient-start);
}

.accordion__header[aria-expanded="true"]::after {
  content: '−';
}

.accordion__panel {
  padding: 0 0 1rem;
  color: var(--color-muted);
}

.cta-banner {
  padding: 3rem 0;
  background: linear-gradient(135deg, rgba(91, 140, 255, 0.22), rgba(90, 230, 255, 0.16));
  border-top: 1px solid rgba(137, 174, 255, 0.3);
  border-bottom: 1px solid rgba(137, 174, 255, 0.22);
}

.cta-banner__inner {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
  align-items: flex-start;
}

.form {
  background: linear-gradient(145deg, rgba(14, 20, 36, 0.9), rgba(10, 18, 36, 0.92));
  padding: 2rem;
  border-radius: var(--radius-lg);
  border: 1px solid rgba(137, 174, 255, 0.3);
  box-shadow: 0 22px 36px rgba(4, 10, 26, 0.48);
}

.form__grid {
  gap: 1.25rem;
}

.form__field {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  font-weight: 600;
}

.form__field input,
.form__field textarea {
  border-radius: var(--radius-md);
  border: 1px solid rgba(137, 174, 255, 0.3);
  padding: 0.75rem 1rem;
  font-family: var(--font-family);
  font-size: 1rem;
  background: rgba(255, 255, 255, 0.03);
  color: var(--color-text);
  transition: border-color var(--transition-base), box-shadow var(--transition-base), background var(--transition-base);
}

.form__field input:focus,
.form__field textarea:focus {
  outline: none;
  border-color: rgba(90, 230, 255, 0.65);
  box-shadow: 0 0 0 3px rgba(90, 230, 255, 0.25);
  background: rgba(255, 255, 255, 0.05);
}

.form__field--full {
  grid-column: 1 / -1;
}

.form__consent {
  display: flex;
  align-items: flex-start;
  gap: 0.75rem;
  margin: 1.5rem 0;
  font-size: 0.95rem;
}

.form__consent input {
  margin-top: 0.35rem;
}

.form__status {
  margin-top: 1rem;
  min-height: 1.5rem;
  font-weight: 600;
}

.footer {
  background: var(--color-dark);
  color: #f8fafc;
  padding: 3rem 0 2rem;
}

.footer__inner {
  display: grid;
  gap: 2rem;
}

.footer__nav,
.footer__contact {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.footer a {
  color: #e2e8f0;
  text-decoration: none;
}

.footer a:hover,
.footer a:focus-visible {
  text-decoration: underline;
}

.footer__bottom {
  margin-top: 2rem;
  text-align: center;
  font-size: 0.85rem;
  color: #94a3b8;
}

[data-animate] {
  opacity: 0;
  transform: translateY(32px);
  transition: opacity 600ms ease, transform 600ms ease;
}

[data-animate].is-visible {
  opacity: 1;
  transform: translateY(0);
}

@keyframes float {
  0%, 100% {
    transform: translateY(0);
  }
  50% {
    transform: translateY(-10px);
  }
}

@media (min-width: 480px) {
  .nav__list {
    min-width: 260px;
  }
}

@media (min-width: 768px) {
  .header__inner {
    padding-inline: 0;
  }

  .nav__toggle {
    display: none;
  }

  .nav__list {
    position: static;
    display: flex !important;
    align-items: center;
    gap: 0.35rem;
    padding: 0.35rem;
    background: var(--nav-bg);
    border-radius: 999px;
    border: 1px solid var(--nav-border);
    box-shadow: 0 16px 32px rgba(15, 23, 42, 0.18);
    backdrop-filter: blur(18px);
    transition: box-shadow var(--transition-base), border-color var(--transition-base), background var(--transition-base);
  }

  .header.is-scrolled .nav__list {
    box-shadow: 0 22px 48px rgba(15, 23, 42, 0.2);
    border-color: rgba(94, 122, 191, 0.7);
  }

  .nav__list a {
    padding: 0.35rem 0.9rem;
    color: var(--nav-text);
  }

  .nav__list a:focus-visible,
  .nav__list a:hover {
    background: var(--nav-hover-bg);
  }

  .header__actions {
    display: inline-flex;
  }

  .grid--2 {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .grid--3 {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .hero__content {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .hero__illustration {
    max-width: 460px;
  }

  .trust__logos {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

  .cta-banner__inner {
    flex-direction: row;
    align-items: center;
    justify-content: space-between;
  }

  .footer__inner {
    grid-template-columns: 2fr 1fr 1fr;
  }
}

@media (min-width: 1024px) {
  .grid--3 {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .hero {
    padding: 7rem 0 5rem;
  }

  .hero__illustration {
    max-width: 520px;
  }

  .pricing__plans {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .deployment__steps {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

@media (min-width: 1280px) {
  :root {
    --container-max: 1240px;
  }

  .hero__subtitle {
    font-size: 1.125rem;
  }
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }

  [data-animate] {
    opacity: 1 !important;
    transform: none !important;
  }
}

@media (prefers-color-scheme: dark) {
  :root {
    color-scheme: dark;
    --color-bg: #0c1224;
    --color-surface: rgba(14, 20, 36, 0.9);
    --color-text: #e8eefc;
    --color-muted: #9cb4d8;
    --color-border: rgba(137, 174, 255, 0.35);
    --shadow-soft: 0 18px 32px rgba(4, 10, 26, 0.55);
  }

  body {
    background: var(--color-bg);
    color: var(--color-text);
  }

  .card,
  .form,
  .trust__logo {
    background: var(--color-surface);
    border-color: var(--color-border);
  }
}