:root {
  --bg: #f4f7fb;
  --bg-soft: #eef3fb;
  --surface: rgba(255, 255, 255, 0.82);
  --surface-strong: #ffffff;
  --border: rgba(26, 41, 74, 0.1);
  --text: #142033;
  --muted: #5d6980;
  --accent: #356dff;
  --accent-strong: #1b47c8;
  --accent-soft: #dfe8ff;
  --shadow: 0 24px 60px rgba(24, 44, 92, 0.12);
  --radius-xl: 32px;
  --radius-lg: 24px;
  --radius-md: 18px;
  --radius-sm: 12px;
  --container: 1180px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: Inter, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  color: var(--text);
  background:
    radial-gradient(circle at top left, rgba(53, 109, 255, 0.16), transparent 28%),
    radial-gradient(circle at 80% 15%, rgba(116, 196, 255, 0.12), transparent 24%),
    linear-gradient(180deg, #f8fbff 0%, #f1f5fb 45%, #edf2f9 100%);
}

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

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

button,
input,
textarea,
select {
  font: inherit;
}

.page-shell {
  min-height: 100vh;
}

.container {
  width: min(calc(100% - 40px), var(--container));
  margin: 0 auto;
}

.section {
  padding: 88px 0;
}

.section-tight {
  padding-top: 0;
}

.section-alt {
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.5), rgba(239, 244, 255, 0.85));
}

.section-accent {
  padding-top: 32px;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  backdrop-filter: blur(16px);
  background: rgba(248, 251, 255, 0.72);
  border-bottom: 1px solid rgba(20, 32, 51, 0.06);
}

.nav-wrap,
.footer-wrap,
.hero-grid,
.split-grid,
.showcase-grid,
.contact-grid,
.cta-panel {
  display: grid;
  gap: 24px;
}

.nav-wrap {
  grid-template-columns: auto 1fr auto;
  align-items: center;
  min-height: 84px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 14px;
}

.brand-mark {
  width: 46px;
  height: 46px;
  display: grid;
  place-items: center;
  border-radius: 14px;
  font-weight: 800;
  color: #fff;
  background: linear-gradient(135deg, var(--accent), #73a3ff);
  box-shadow: 0 12px 24px rgba(53, 109, 255, 0.25);
}

.brand-text {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.brand-text strong {
  font-size: 0.98rem;
}

.brand-text span {
  color: var(--muted);
  font-size: 0.84rem;
}

.main-nav {
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: 28px;
}

.main-nav a {
  color: var(--muted);
  font-weight: 500;
}

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

.header-actions {
  display: inline-flex;
  align-items: center;
  gap: 14px;
}

.lang-switch {
  display: inline-flex;
  padding: 4px;
  border-radius: 999px;
  background: rgba(20, 32, 51, 0.05);
}

.lang-btn {
  border: 0;
  background: transparent;
  color: var(--muted);
  padding: 9px 14px;
  border-radius: 999px;
  cursor: pointer;
  transition: 0.2s ease;
}

.lang-btn.is-active {
  background: #fff;
  color: var(--text);
  box-shadow: 0 6px 16px rgba(17, 34, 68, 0.08);
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  min-height: 52px;
  padding: 0 24px;
  border-radius: 999px;
  border: 1px solid transparent;
  background: linear-gradient(135deg, var(--accent), #5c8dff);
  color: #fff;
  font-weight: 700;
  box-shadow: 0 14px 30px rgba(53, 109, 255, 0.28);
  transition: transform 0.2s ease, box-shadow 0.2s ease, background 0.2s ease;
}

.button:hover,
.button:focus-visible {
  transform: translateY(-2px);
  box-shadow: 0 18px 34px rgba(53, 109, 255, 0.32);
}

.button-secondary,
.button-ghost {
  background: rgba(255, 255, 255, 0.8);
  color: var(--text);
  border-color: rgba(20, 32, 51, 0.08);
  box-shadow: none;
}

.button-small {
  min-height: 44px;
  padding: 0 18px;
}

.button-light {
  background: #fff;
  color: var(--accent-strong);
}

.hero {
  padding-top: 48px;
}

.hero-grid,
.split-grid,
.showcase-grid,
.contact-grid,
.cta-panel {
  grid-template-columns: repeat(2, minmax(0, 1fr));
  align-items: center;
}

.hero-copy h1,
.section-heading h2,
.showcase-copy h2,
.contact-copy h2,
.cta-panel h2 {
  margin: 0;
  letter-spacing: -0.04em;
  line-height: 1.02;
}

.hero-copy h1 {
  max-width: 11ch;
  font-size: clamp(2.9rem, 5vw, 5.5rem);
}

.hero-text,
.section-heading p,
.showcase-copy p,
.contact-copy p,
.service-card p,
.advantage-item p,
.timeline-card p,
.floating-card p,
.metric-card span {
  color: var(--muted);
  line-height: 1.72;
}

.hero-text {
  max-width: 600px;
  margin: 24px 0 0;
  font-size: 1.08rem;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin: 30px 0;
}

.hero-points {
  padding: 0;
  margin: 0;
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.hero-points li {
  padding: 12px 16px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.75);
  border: 1px solid rgba(20, 32, 51, 0.07);
  color: var(--text);
  font-size: 0.94rem;
}

.hero-visual,
.split-visual,
.floating-card,
.metric-card,
.service-card,
.timeline-card,
.contact-card,
.cta-panel,
.floating-card-small {
  border: 1px solid var(--border);
  background: var(--surface);
  box-shadow: var(--shadow);
  backdrop-filter: blur(12px);
}

.hero-visual,
.split-visual {
  border-radius: var(--radius-xl);
  padding: 24px;
}

.card-glow {
  position: relative;
  overflow: hidden;
}

.card-glow::before {
  content: "";
  position: absolute;
  inset: auto auto 0 -10%;
  width: 160px;
  height: 160px;
  background: radial-gradient(circle, rgba(53, 109, 255, 0.18), transparent 70%);
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 18px;
  color: var(--accent-strong);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  font-size: 0.78rem;
}

.eyebrow::before {
  content: "";
  width: 36px;
  height: 2px;
  border-radius: 999px;
  background: currentColor;
}

.eyebrow-light {
  color: rgba(255, 255, 255, 0.75);
}

.metrics-grid,
.service-grid,
.timeline-grid,
.contact-cards {
  display: grid;
  gap: 20px;
}

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

.metric-card {
  padding: 26px;
  border-radius: var(--radius-lg);
}

.metric-card strong {
  display: block;
  margin-bottom: 8px;
  font-size: 1.8rem;
  letter-spacing: -0.04em;
}

.section-heading {
  max-width: 760px;
  margin: 0 auto 42px;
  text-align: center;
}

.section-heading-left {
  margin-left: 0;
  text-align: left;
}

.section-heading h2,
.showcase-copy h2,
.contact-copy h2,
.cta-panel h2 {
  font-size: clamp(2rem, 4vw, 3.5rem);
}

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

.service-card,
.timeline-card,
.floating-card-small,
.contact-card {
  border-radius: var(--radius-lg);
}

.service-card {
  padding: 30px;
}

.service-icon {
  width: 54px;
  height: 54px;
  display: grid;
  place-items: center;
  margin-bottom: 18px;
  border-radius: 16px;
  color: var(--accent-strong);
  font-weight: 800;
  background: var(--accent-soft);
}

.service-card h3,
.advantage-item h3,
.timeline-card h3,
.floating-card strong {
  margin: 0 0 10px;
  font-size: 1.16rem;
}

.split-copy {
  padding-left: 16px;
}

.advantage-list {
  display: grid;
  gap: 22px;
}

.advantage-item {
  padding-bottom: 18px;
  border-bottom: 1px solid rgba(20, 32, 51, 0.08);
}

.advantage-item:last-child {
  border-bottom: 0;
  padding-bottom: 0;
}

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

.timeline-card {
  padding: 28px;
}

.timeline-card span {
  display: inline-flex;
  margin-bottom: 18px;
  color: var(--accent-strong);
  font-size: 0.86rem;
  font-weight: 800;
  letter-spacing: 0.16em;
}

.showcase-copy {
  max-width: 560px;
}

.showcase-stack {
  position: relative;
  min-height: 520px;
}

.floating-card {
  position: absolute;
  overflow: hidden;
}

.floating-card-large {
  top: 0;
  right: 0;
  left: 40px;
  border-radius: 34px;
  padding: 20px;
}

.floating-card-small {
  right: 0;
  bottom: 26px;
  width: min(320px, 72%);
  padding: 24px;
  background: rgba(255, 255, 255, 0.9);
}

.cta-panel {
  padding: 36px;
  border-radius: var(--radius-xl);
  background: linear-gradient(135deg, #1844bf, #3c7bff 55%, #5fb7ff);
  color: #fff;
}

.cta-panel h2 {
  max-width: 14ch;
}

.contact-cards {
  grid-template-columns: 1fr;
}

.contact-card {
  padding: 24px 26px;
  transition: transform 0.2s ease, border-color 0.2s ease;
}

.contact-card:hover,
.contact-card:focus-visible {
  transform: translateY(-2px);
  border-color: rgba(53, 109, 255, 0.3);
}

.contact-label {
  display: block;
  margin-bottom: 8px;
  color: var(--muted);
  font-size: 0.9rem;
}

.site-footer {
  padding: 18px 0 36px;
}

.page-intro {
  max-width: 820px;
}

.page-intro h1 {
  margin: 0;
  font-size: clamp(2.4rem, 4.8vw, 4.8rem);
  line-height: 1.02;
  letter-spacing: -0.04em;
}

.download-hero {
  padding-top: 56px;
}

.download-shell {
  grid-template-columns: 1fr;
}

.download-note {
  display: inline-flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 24px;
  padding: 14px 18px;
  border: 1px solid var(--border);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.8);
  color: var(--muted);
}

.status-pill {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 34px;
  padding: 0 14px;
  border-radius: 999px;
  background: var(--accent-soft);
  color: var(--accent-strong);
  font-size: 0.8rem;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.12em;
}

.download-list {
  display: grid;
  gap: 16px;
}

.download-item {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 24px;
  align-items: center;
  padding: 26px 28px;
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  background: rgba(255, 255, 255, 0.84);
  box-shadow: var(--shadow);
  transition: transform 0.2s ease, border-color 0.2s ease, box-shadow 0.2s ease;
}

.download-item:hover,
.download-item:focus-visible {
  transform: translateY(-2px);
  border-color: rgba(53, 109, 255, 0.28);
  box-shadow: 0 26px 60px rgba(24, 44, 92, 0.14);
}

.download-name {
  display: block;
  margin-bottom: 8px;
  font-size: 1.04rem;
}

.download-desc {
  margin: 0;
  color: var(--muted);
  line-height: 1.65;
}

.download-meta {
  display: grid;
  gap: 10px;
  justify-items: end;
  text-align: right;
}

.file-size,
.file-date {
  display: inline-flex;
  justify-content: center;
  align-items: center;
  min-height: 38px;
  padding: 0 14px;
  border-radius: 999px;
  background: rgba(20, 32, 51, 0.05);
  color: var(--text);
  font-weight: 600;
}

.file-date {
  color: var(--muted);
  font-weight: 500;
}

.footer-wrap {
  grid-template-columns: repeat(2, minmax(0, 1fr));
  align-items: center;
  color: var(--muted);
}

.footer-wrap p:last-child {
  text-align: right;
}

@media (max-width: 1100px) {
  .nav-wrap {
    grid-template-columns: 1fr;
    justify-items: center;
    padding: 18px 0;
  }

  .main-nav {
    gap: 20px;
  }

  .hero-grid,
  .split-grid,
  .showcase-grid,
  .contact-grid,
  .cta-panel,
  .metrics-grid,
  .service-grid,
  .timeline-grid {
    grid-template-columns: 1fr 1fr;
  }

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

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

  .showcase-stack {
    min-height: 460px;
  }
}

@media (max-width: 760px) {
  .section {
    padding: 68px 0;
  }

  .container {
    width: min(calc(100% - 28px), var(--container));
  }

  .header-actions,
  .hero-actions,
  .hero-points,
  .footer-wrap {
    justify-content: center;
  }

  .main-nav {
    display: none;
  }

  .hero-grid,
  .split-grid,
  .showcase-grid,
  .contact-grid,
  .cta-panel,
  .metrics-grid,
  .service-grid,
  .timeline-grid,
  .footer-wrap {
    grid-template-columns: 1fr;
  }

  .hero {
    padding-top: 24px;
  }

  .hero-copy,
  .showcase-copy,
  .contact-copy {
    text-align: center;
  }

  .hero-copy h1 {
    max-width: none;
  }

  .section-heading,
  .section-heading-left {
    text-align: center;
    margin-bottom: 30px;
  }

  .split-copy {
    padding-left: 0;
  }

  .showcase-stack {
    min-height: auto;
    display: grid;
    gap: 18px;
  }

  .floating-card {
    position: static;
  }

  .floating-card-small {
    width: 100%;
  }

  .cta-panel {
    text-align: center;
    padding: 30px 24px;
  }

  .cta-panel h2 {
    max-width: none;
  }

  .footer-wrap p,
  .footer-wrap p:last-child {
    text-align: center;
  }

  .download-note {
    border-radius: 22px;
  }

  .download-item {
    grid-template-columns: 1fr;
  }

  .download-meta {
    justify-items: start;
    text-align: left;
  }
}

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

  .button,
  .contact-card,
  .lang-btn {
    transition: none;
  }
}