:root {
  --bg: #04070d;
  --bg-soft: rgba(10, 14, 23, 0.82);
  --surface: rgba(12, 17, 28, 0.72);
  --surface-strong: rgba(16, 22, 35, 0.95);
  --surface-muted: rgba(17, 24, 39, 0.62);
  --border: rgba(255, 255, 255, 0.1);
  --border-strong: rgba(124, 163, 246, 0.28);
  --text: #f5f7fb;
  --text-muted: #98a3b7;
  --text-soft: #c7d1df;
  --accent: #7ca3f6;
  --accent-soft: rgba(124, 163, 246, 0.18);
  --accent-strong: #b7ccff;
  --success: #8ff0b0;
  --shadow: 0 30px 80px rgba(0, 0, 0, 0.45);
  --radius-xl: 30px;
  --radius-lg: 22px;
  --radius-md: 16px;
  --container: 1240px;
}

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

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  color: var(--text);
  background:
    radial-gradient(circle at top left, rgba(124, 163, 246, 0.12), transparent 30%),
    radial-gradient(circle at 80% 20%, rgba(124, 163, 246, 0.08), transparent 24%),
    linear-gradient(180deg, #03060b 0%, #050912 48%, #02050a 100%);
  font-family: 'Manrope', 'Segoe UI', sans-serif;
  min-width: 320px;
}

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

a {
  color: inherit;
}

button,
input,
textarea {
  font: inherit;
}

.landing-body.menu-open {
  overflow: hidden;
}

.landing-shell {
  position: relative;
  overflow: clip;
}

.landing-grid {
  position: fixed;
  inset: 0;
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.035) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.035) 1px, transparent 1px);
  background-size: 72px 72px;
  mask-image: linear-gradient(180deg, rgba(255, 255, 255, 0.9), transparent 85%);
  pointer-events: none;
  opacity: 0.42;
}

.landing-glow {
  position: absolute;
  border-radius: 999px;
  filter: blur(140px);
  pointer-events: none;
  opacity: 0.55;
}

.landing-glow--left {
  width: 320px;
  height: 320px;
  top: 140px;
  left: -120px;
  background: rgba(124, 163, 246, 0.26);
}

.landing-glow--right {
  width: 420px;
  height: 420px;
  top: 420px;
  right: -140px;
  background: rgba(124, 163, 246, 0.2);
}

.container {
  width: min(var(--container), calc(100% - 48px));
  margin: 0 auto;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 40;
  padding-top: 18px;
  transition: padding 0.25s ease;
}

.site-header__inner {
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: center;
  gap: 20px;
  padding: 18px 22px;
  border: 1px solid transparent;
  border-radius: 999px;
  transition: background 0.25s ease, border-color 0.25s ease, box-shadow 0.25s ease;
}

.site-header--scrolled .site-header__inner {
  background: rgba(7, 11, 18, 0.86);
  border-color: rgba(255, 255, 255, 0.08);
  box-shadow: 0 16px 40px rgba(0, 0, 0, 0.28);
  backdrop-filter: blur(18px);
}

.brand {
  position: relative;
  z-index: 2;
}

.brand__logo {
  width: 168px;
  height: auto;
}

.site-nav {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 8px;
}

.site-nav__link {
  padding: 12px 16px;
  border-radius: 999px;
  color: var(--text-muted);
  text-decoration: none;
  font-size: 14px;
  font-weight: 600;
  transition: color 0.2s ease, background 0.2s ease, border-color 0.2s ease;
  border: 1px solid transparent;
}

.site-nav__link:hover,
.site-nav__link--active {
  color: var(--text);
  background: rgba(255, 255, 255, 0.05);
  border-color: rgba(255, 255, 255, 0.06);
}

.site-header__actions {
  display: flex;
  align-items: center;
  gap: 12px;
}

.header-logout {
  margin: 0;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 48px;
  padding: 0 18px;
  border-radius: 999px;
  border: 1px solid transparent;
  text-decoration: none;
  font-size: 14px;
  font-weight: 700;
  letter-spacing: -0.01em;
  transition: transform 0.2s ease, background 0.2s ease, border-color 0.2s ease, box-shadow 0.2s ease;
  cursor: pointer;
}

.button:hover {
  transform: translateY(-1px);
}

.button--primary {
  color: #07101e;
  background: linear-gradient(135deg, #d8e5ff 0%, var(--accent) 38%, #93b7ff 100%);
  box-shadow: 0 18px 44px rgba(124, 163, 246, 0.32);
}

.button--ghost {
  color: var(--text);
  background: rgba(255, 255, 255, 0.03);
  border-color: rgba(255, 255, 255, 0.09);
}

.button--ghost:hover {
  background: rgba(255, 255, 255, 0.08);
}

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

.menu-toggle {
  display: none;
  width: 52px;
  height: 52px;
  border-radius: 16px;
  border: 1px solid rgba(255, 255, 255, 0.08);
  background: rgba(255, 255, 255, 0.04);
  padding: 0;
  justify-self: end;
}

.menu-toggle span {
  position: absolute;
  width: 18px;
  height: 2px;
  border-radius: 999px;
  background: var(--text);
  transition: transform 0.2s ease, opacity 0.2s ease;
}

.menu-toggle span:first-child {
  transform: translateY(-4px);
}

.menu-toggle span:last-child {
  transform: translateY(4px);
}

.menu-toggle[aria-expanded='true'] span:first-child {
  transform: rotate(45deg);
}

.menu-toggle[aria-expanded='true'] span:last-child {
  transform: rotate(-45deg);
}

.hero {
  position: relative;
  padding: 56px 0 112px;
}

.hero__grid {
  display: grid;
  grid-template-columns: minmax(0, 1.05fr) minmax(460px, 0.95fr);
  gap: 52px;
  align-items: center;
}

.eyebrow,
.section-heading__label,
.section-badge,
.section-code,
.floating-card__label,
.contact-panel__label,
.plugins-visual__caption {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-family: 'IBM Plex Mono', monospace;
  font-size: 12px;
  line-height: 1;
  text-transform: uppercase;
  letter-spacing: 0.12em;
}

.eyebrow,
.section-heading__label,
.section-badge,
.contact-panel__label,
.plugins-visual__caption {
  color: var(--accent-strong);
}

.section-code {
  color: var(--text-muted);
}

.eyebrow__dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 0 8px rgba(124, 163, 246, 0.12);
}

.hero__content {
  position: relative;
  z-index: 1;
}

.hero__title,
.section-heading__title {
  margin: 18px 0 0;
  font-size: clamp(42px, 6vw, 72px);
  line-height: 0.98;
  letter-spacing: -0.045em;
}

.hero__text,
.section-heading__text,
.overview-card p,
.advantage-card p,
.plugin-point span,
.plugins-visual__core p,
.site-footer__brand p {
  color: var(--text-muted);
  line-height: 1.7;
  font-size: 17px;
}

.hero__text {
  margin: 28px 0 0;
  max-width: 620px;
  color: var(--text-soft);
}

.hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-top: 34px;
}

.hero__metrics {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 14px;
  margin-top: 36px;
}

.metric-card,
.overview-card,
.advantage-card,
.contact-panel,
.contact-form,
.plugin-point,
.floating-card,
.hero-panel,
.plugins-visual__core,
.plugin-node {
  background: linear-gradient(180deg, rgba(18, 24, 37, 0.88), rgba(10, 14, 22, 0.82));
  border: 1px solid var(--border);
  box-shadow: var(--shadow);
}

.metric-card {
  padding: 18px;
  border-radius: 20px;
}

.metric-card strong,
.overview-flow__item strong,
.advantage-card h3,
.plugin-point strong,
.plugins-visual__core strong,
.plugin-node span,
.contact-panel strong {
  display: block;
  font-size: 18px;
  line-height: 1.3;
  letter-spacing: -0.03em;
}

.metric-card span,
.overview-flow__item span,
.plugin-node small {
  display: block;
  margin-top: 10px;
  color: var(--text-muted);
  line-height: 1.5;
  font-size: 14px;
}

.hero__visual {
  position: relative;
  min-height: 690px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.hero-orbit {
  position: absolute;
  border-radius: 50%;
  border: 1px solid rgba(124, 163, 246, 0.12);
  pointer-events: none;
}

.hero-orbit--outer {
  width: 640px;
  height: 640px;
}

.hero-orbit--inner {
  width: 480px;
  height: 480px;
}

.hero-panel {
  position: relative;
  width: min(100%, 620px);
  border-radius: var(--radius-xl);
  overflow: hidden;
  backdrop-filter: blur(22px);
}

.hero-panel::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(124, 163, 246, 0.2), transparent 35%, transparent 70%, rgba(124, 163, 246, 0.16));
  pointer-events: none;
}

.hero-panel__top {
  display: flex;
  gap: 8px;
  padding: 18px 20px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.07);
}

.hero-panel__top span {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.28);
}

.hero-panel__body {
  display: grid;
  grid-template-columns: 190px minmax(0, 1fr);
  gap: 0;
}

.hero-panel__aside {
  padding: 22px 20px;
  border-right: 1px solid rgba(255, 255, 255, 0.06);
  background: rgba(5, 8, 14, 0.64);
}

.hero-chip {
  display: inline-flex;
  align-items: center;
  min-height: 32px;
  padding: 0 12px;
  border-radius: 999px;
  background: rgba(124, 163, 246, 0.14);
  color: var(--accent-strong);
  font-family: 'IBM Plex Mono', monospace;
  font-size: 12px;
  text-transform: uppercase;
}

.hero-code {
  display: grid;
  gap: 12px;
  margin-top: 22px;
}

.hero-code span {
  color: #dce6fb;
  font-family: 'IBM Plex Mono', monospace;
  font-size: 14px;
  line-height: 1.5;
}

.hero-panel__preview {
  position: relative;
  padding: 24px;
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.035), transparent),
    radial-gradient(circle at top right, rgba(124, 163, 246, 0.16), transparent 40%);
}

.preview-badge {
  position: absolute;
  top: 18px;
  right: 18px;
  z-index: 1;
  min-height: 34px;
  padding: 0 12px;
  border-radius: 999px;
  background: rgba(6, 9, 15, 0.84);
  border: 1px solid rgba(255, 255, 255, 0.08);
  display: inline-flex;
  align-items: center;
  font-family: 'IBM Plex Mono', monospace;
  font-size: 12px;
  color: var(--text-soft);
}

.hero-panel__image {
  width: 100%;
  border-radius: 20px;
  border: 1px solid rgba(255, 255, 255, 0.08);
}

.floating-card {
  position: absolute;
  max-width: 240px;
  padding: 18px;
  border-radius: 20px;
  backdrop-filter: blur(18px);
}

.floating-card strong {
  display: block;
  margin-top: 8px;
  font-size: 18px;
  letter-spacing: -0.03em;
}

.floating-card p {
  margin: 10px 0 0;
  font-size: 14px;
  line-height: 1.5;
  color: var(--text-muted);
}

.floating-card--top {
  top: 78px;
  right: -8px;
}

.floating-card--bottom {
  left: -16px;
  bottom: 74px;
}

.section {
  position: relative;
  padding: 0 0 112px;
}

.section-heading {
  max-width: 840px;
}

.section-heading__title {
  font-size: clamp(32px, 5vw, 54px);
}

.section-heading__text {
  margin: 18px 0 0;
}

.overview-grid {
  display: grid;
  grid-template-columns: 1.15fr 0.85fr 0.85fr;
  gap: 20px;
  margin-top: 40px;
}

.overview-card {
  border-radius: 28px;
  padding: 28px;
}

.overview-card--wide {
  grid-row: span 2;
}

.overview-card__header {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  flex-wrap: wrap;
}

.overview-card__lead {
  margin: 22px 0 0;
  font-size: 24px;
  line-height: 1.45;
  color: var(--text);
}

.overview-card h3 {
  margin: 16px 0 0;
  font-size: 28px;
  line-height: 1.15;
  letter-spacing: -0.04em;
}

.overview-card p {
  margin: 16px 0 0;
}

.overview-flow {
  display: grid;
  gap: 18px;
  margin-top: 28px;
}

.overview-flow__item {
  padding: 18px 20px;
  border-radius: 20px;
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid rgba(255, 255, 255, 0.06);
}

.advantages-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 20px;
  margin-top: 40px;
}

.advantage-card {
  position: relative;
  padding: 26px;
  border-radius: 26px;
  overflow: hidden;
}

.advantage-card::after {
  content: '';
  position: absolute;
  inset: auto -40px -80px auto;
  width: 180px;
  height: 180px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(124, 163, 246, 0.18), transparent 65%);
  pointer-events: none;
}

.advantage-card__icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 52px;
  min-height: 34px;
  padding: 0 12px;
  border-radius: 999px;
  color: var(--accent-strong);
  background: rgba(124, 163, 246, 0.12);
  font-family: 'IBM Plex Mono', monospace;
  font-size: 12px;
  letter-spacing: 0.12em;
}

.advantage-card h3 {
  margin: 18px 0 0;
}

.advantage-card p {
  margin: 14px 0 0;
}

.plugins-layout {
  display: grid;
  grid-template-columns: minmax(0, 0.9fr) minmax(460px, 1.1fr);
  gap: 36px;
  align-items: center;
}

.plugin-points {
  display: grid;
  gap: 16px;
  margin-top: 34px;
}

.plugin-point {
  padding: 20px 22px;
  border-radius: 22px;
}

.plugins-visual {
  position: relative;
  min-height: 620px;
  display: grid;
  place-items: center;
}

.plugins-lines {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
}

.plugins-lines circle,
.plugins-lines path {
  fill: none;
  stroke: rgba(124, 163, 246, 0.18);
  stroke-width: 1.5;
}

.plugins-visual__core {
  position: relative;
  z-index: 2;
  width: 280px;
  min-height: 280px;
  padding: 34px 30px;
  border-radius: 50%;
  display: grid;
  place-items: center;
  text-align: center;
  backdrop-filter: blur(24px);
  border-color: var(--border-strong);
}

.plugins-visual__core strong {
  font-size: 30px;
}

.plugins-visual__core p {
  margin: 10px 0 0;
  font-size: 15px;
}

.plugin-node {
  position: absolute;
  z-index: 2;
  width: 190px;
  padding: 18px;
  border-radius: 22px;
  text-align: center;
}

.plugin-node--top {
  top: 12px;
  left: 50%;
  transform: translateX(-50%);
}

.plugin-node--right {
  right: 0;
  top: 50%;
  transform: translateY(-50%);
}

.plugin-node--bottom {
  bottom: 12px;
  left: 50%;
  transform: translateX(-50%);
}

.plugin-node--left {
  left: 0;
  top: 50%;
  transform: translateY(-50%);
}

.section--contact {
  padding-bottom: 72px;
}

.contact-layout {
  display: grid;
  grid-template-columns: minmax(0, 0.95fr) minmax(420px, 0.9fr);
  gap: 30px;
  align-items: start;
}

.contact-panel {
  margin-top: 32px;
  padding: 22px;
  border-radius: 26px;
  display: grid;
  gap: 20px;
}

.contact-form {
  padding: 28px;
  border-radius: 30px;
  display: grid;
  gap: 18px;
}

.contact-form__group {
  display: grid;
  gap: 8px;
}

.contact-form label {
  font-size: 14px;
  font-weight: 700;
  color: var(--text-soft);
}

.contact-form input,
.contact-form textarea {
  width: 100%;
  min-height: 56px;
  padding: 16px 18px;
  border-radius: 18px;
  border: 1px solid rgba(255, 255, 255, 0.08);
  background: rgba(255, 255, 255, 0.03);
  color: var(--text);
  transition: border-color 0.2s ease, background 0.2s ease, box-shadow 0.2s ease;
}

.contact-form textarea {
  min-height: 160px;
  resize: vertical;
}

.contact-form input::placeholder,
.contact-form textarea::placeholder {
  color: #738199;
}

.contact-form input:focus,
.contact-form textarea:focus {
  outline: none;
  border-color: rgba(124, 163, 246, 0.42);
  background: rgba(255, 255, 255, 0.05);
  box-shadow: 0 0 0 4px rgba(124, 163, 246, 0.12);
}

.contact-form input.is-invalid,
.contact-form textarea.is-invalid {
  border-color: rgba(255, 129, 129, 0.65);
  box-shadow: 0 0 0 4px rgba(255, 129, 129, 0.1);
}

.contact-form__error {
  min-height: 18px;
  color: #ffb1b1;
  font-size: 13px;
}

.contact-form__success {
  margin: 0;
  color: var(--success);
  line-height: 1.6;
  font-size: 14px;
}

.site-footer {
  padding: 0 0 42px;
}

.site-footer__inner {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto auto;
  gap: 24px;
  align-items: end;
  padding: 28px 30px;
  border-radius: 32px;
  background: linear-gradient(180deg, rgba(12, 17, 28, 0.92), rgba(8, 11, 18, 0.96));
  border: 1px solid rgba(255, 255, 255, 0.08);
  box-shadow: var(--shadow);
}

.site-footer__logo {
  width: 150px;
  margin-bottom: 16px;
}

.site-footer__brand p {
  margin: 0;
  max-width: 420px;
}

.site-footer__nav {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.site-footer__nav a {
  color: var(--text-muted);
  text-decoration: none;
  transition: color 0.2s ease;
}

.site-footer__nav a:hover {
  color: var(--text);
}

.site-footer__meta {
  display: grid;
  justify-items: end;
  gap: 14px;
  color: var(--text-muted);
  font-size: 14px;
}

[data-reveal] {
  opacity: 0;
  transform: translateY(28px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}

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

@media (max-width: 1180px) {
  .site-header__inner {
    grid-template-columns: auto auto auto;
  }

  .overview-card--wide {
    grid-row: auto;
  }

  .hero__grid,
  .plugins-layout,
  .contact-layout,
  .overview-grid {
    grid-template-columns: 1fr;
  }

  .hero__visual,
  .plugins-visual {
    min-height: auto;
  }

  .hero__visual {
    padding-top: 24px;
  }

  .floating-card--top {
    right: 10px;
  }

  .floating-card--bottom {
    left: 10px;
  }

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

  .site-footer__inner {
    grid-template-columns: 1fr;
    align-items: start;
  }

  .site-footer__meta {
    justify-items: start;
  }

  .site-footer__nav {
    flex-direction: row;
    flex-wrap: wrap;
  }
}

@media (max-width: 920px) {
  .container {
    width: min(var(--container), calc(100% - 32px));
  }

  .site-header {
    padding-top: 14px;
  }

  .site-header__inner {
    grid-template-columns: auto auto;
    padding: 16px;
    border-radius: 28px;
  }

  .menu-toggle {
    position: relative;
    display: inline-flex;
    align-items: center;
    justify-content: center;
  }

  .site-nav {
    position: absolute;
    top: calc(100% + 10px);
    left: 0;
    right: 0;
    margin: 0 12px;
    padding: 14px;
    border-radius: 26px;
    background: rgba(8, 11, 18, 0.96);
    border: 1px solid rgba(255, 255, 255, 0.08);
    box-shadow: var(--shadow);
    display: none;
    flex-direction: column;
    align-items: stretch;
    gap: 8px;
  }

  .site-nav.is-open {
    display: flex;
  }

  .site-nav__link {
    justify-content: center;
    text-align: center;
  }

  .site-header__actions {
    grid-column: 1 / -1;
    justify-content: flex-start;
    flex-wrap: wrap;
  }

  .hero {
    padding-top: 34px;
  }

  .hero__grid {
    gap: 34px;
  }

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

  .hero-panel__body {
    grid-template-columns: 1fr;
  }

  .hero-panel__aside {
    border-right: 0;
    border-bottom: 1px solid rgba(255, 255, 255, 0.06);
  }

  .hero-orbit,
  .floating-card {
    position: static;
  }

  .hero__visual {
    display: grid;
    gap: 18px;
  }

  .hero-orbit {
    display: none;
  }

  .floating-card {
    max-width: none;
  }

  .plugins-visual {
    gap: 16px;
    padding-top: 16px;
    min-height: auto;
  }

  .plugins-lines {
    display: none;
  }

  .plugins-visual__core,
  .plugin-node {
    position: static;
    transform: none;
    width: 100%;
    min-height: auto;
    border-radius: 26px;
  }

  .plugins-visual__core {
    padding: 26px 22px;
  }

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

@media (max-width: 640px) {
  .hero__title,
  .section-heading__title {
    letter-spacing: -0.05em;
  }

  .hero__text,
  .section-heading__text,
  .overview-card p,
  .advantage-card p,
  .plugin-point span,
  .site-footer__brand p {
    font-size: 16px;
  }

  .overview-card,
  .advantage-card,
  .contact-form,
  .contact-panel,
  .plugin-point,
  .metric-card {
    padding: 22px;
  }

  .site-header__actions,
  .hero__actions {
    display: grid;
    grid-template-columns: 1fr;
    width: 100%;
  }

  .site-header__actions .button,
  .site-header__actions .header-logout,
  .site-header__actions .header-logout button,
  .hero__actions .button {
    width: 100%;
  }

  .brand__logo {
    width: 148px;
  }

  .hero-panel__preview {
    padding: 18px;
  }

  .section {
    padding-bottom: 88px;
  }

  .site-footer {
    padding-bottom: 24px;
  }
}

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

  *,
  *::before,
  *::after {
    animation: none !important;
    transition: none !important;
  }

  [data-reveal] {
    opacity: 1;
    transform: none;
  }
}