:root {
  --color-bg: #f6f8fb;
  --color-surface: #ffffff;
  --color-surface-soft: #eef4ff;
  --color-text: #152033;
  --color-muted: #617088;
  --color-primary: #2557d6;
  --color-primary-dark: #173fa9;
  --color-accent: #79d2ff;
  --color-border: rgba(21, 32, 51, 0.12);
  --shadow-soft: 0 24px 70px rgba(26, 46, 86, 0.12);
  --shadow-card: 0 14px 40px rgba(26, 46, 86, 0.1);
  --radius-sm: 14px;
  --radius-md: 22px;
  --radius-lg: 32px;
  --container: 1180px;
  --space-page: clamp(16px, 5vw, 32px);
  --section-space: clamp(56px, 10vw, 112px);
  --transition: 180ms ease;
}

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

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-width: 320px;
  color: var(--color-text);
  font-family: Inter, -apple-system, BlinkMacSystemFont, "Segoe UI", Arial, sans-serif;
  font-size: 16px;
  line-height: 1.6;
  background:
    radial-gradient(circle at top left, rgba(121, 210, 255, 0.28), transparent 34rem),
    linear-gradient(180deg, #ffffff 0%, var(--color-bg) 42%, #eef3fb 100%);
  overflow-x: hidden;
}

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

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

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

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

button {
  border: 0;
}

:focus-visible {
  outline: 3px solid rgba(37, 87, 214, 0.35);
  outline-offset: 4px;
}

.container {
  width: min(100% - (var(--space-page) * 2), var(--container));
  margin-inline: auto;
}

.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;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  background: rgba(255, 255, 255, 0.82);
  border-bottom: 1px solid var(--color-border);
  backdrop-filter: blur(18px);
}

.header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 72px;
  gap: 16px;
}

.logo {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-weight: 800;
  letter-spacing: -0.02em;
}

.logo__mark {
  display: grid;
  width: 42px;
  height: 42px;
  place-items: center;
  color: #ffffff;
  background: linear-gradient(135deg, var(--color-primary), #50a8ff);
  border-radius: 13px;
  box-shadow: 0 12px 24px rgba(37, 87, 214, 0.22);
}

.logo__text {
  display: none;
}

.menu-toggle {
  position: relative;
  z-index: 30;
  display: inline-flex;
  flex-direction: column;
  justify-content: center;
  width: 46px;
  height: 46px;
  padding: 0 12px;
  gap: 5px;
  color: var(--color-text);
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: 14px;
  cursor: pointer;
  transition: transform var(--transition), border-color var(--transition), box-shadow var(--transition);
}

.menu-toggle:hover {
  border-color: rgba(37, 87, 214, 0.3);
  box-shadow: 0 10px 24px rgba(26, 46, 86, 0.08);
}

.menu-toggle:active {
  transform: scale(0.96);
}

.menu-toggle__line {
  width: 100%;
  height: 2px;
  background: currentColor;
  border-radius: 999px;
  transition: transform var(--transition), opacity var(--transition);
}

.menu-toggle[aria-expanded="true"] .menu-toggle__line:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}

.menu-toggle[aria-expanded="true"] .menu-toggle__line:nth-child(2) {
  opacity: 0;
}

.menu-toggle[aria-expanded="true"] .menu-toggle__line:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

.site-nav {
  position: fixed;
  inset: 72px var(--space-page) auto;
  display: grid;
  gap: 8px;
  padding: 14px;
  background: rgba(255, 255, 255, 0.96);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-soft);
  transform: translateY(-18px);
  opacity: 0;
  visibility: hidden;
  transition: opacity var(--transition), transform var(--transition), visibility var(--transition);
}

.site-nav.is-open {
  transform: translateY(0);
  opacity: 1;
  visibility: visible;
}

.site-nav__link {
  padding: 12px 14px;
  color: var(--color-muted);
  font-weight: 700;
  border-radius: 12px;
  transition: color var(--transition), background-color var(--transition);
}

.site-nav__link:hover,
.site-nav__link:focus-visible {
  color: var(--color-primary);
  background: var(--color-surface-soft);
}

.hero {
  padding: clamp(52px, 10vw, 112px) 0 var(--section-space);
}

.hero__grid {
  display: grid;
  gap: clamp(28px, 6vw, 64px);
  align-items: center;
}

.hero__content {
  max-width: 700px;
}

.eyebrow {
  margin: 0 0 12px;
  color: var(--color-primary);
  font-size: 0.78rem;
  font-weight: 800;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

h1,
h2,
h3,
p {
  overflow-wrap: anywhere;
}

h1,
h2,
h3 {
  margin: 0;
  line-height: 1.08;
  letter-spacing: -0.04em;
}

h1 {
  max-width: 780px;
  font-size: clamp(2.25rem, 12vw, 5.5rem);
}

h2 {
  font-size: clamp(1.8rem, 7vw, 3.35rem);
}

h3 {
  font-size: clamp(1.1rem, 4vw, 1.38rem);
}

.hero__text,
.section__header,
.contact-panel p,
.notice-card p,
.feature-card p {
  color: var(--color-muted);
}

.hero__text {
  max-width: 640px;
  margin: 22px 0 0;
  font-size: clamp(1rem, 2.8vw, 1.18rem);
}

.hero__actions {
  display: flex;
  flex-direction: column;
  gap: 12px;
  margin-top: 28px;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 50px;
  padding: 13px 20px;
  font-weight: 800;
  text-align: center;
  border-radius: 999px;
  transition: transform var(--transition), box-shadow var(--transition), background-color var(--transition), color var(--transition);
}

.button:hover {
  transform: translateY(-2px);
}

.button:active {
  transform: translateY(0);
}

.button--primary {
  color: #ffffff;
  background: var(--color-primary);
  box-shadow: 0 16px 34px rgba(37, 87, 214, 0.25);
}

.button--primary:hover {
  background: var(--color-primary-dark);
}

.button--secondary {
  color: var(--color-primary);
  background: rgba(37, 87, 214, 0.08);
}

.button--secondary:hover {
  background: rgba(37, 87, 214, 0.14);
}

.notice-card {
  position: relative;
  display: grid;
  gap: 16px;
  width: 100%;
  padding: clamp(22px, 6vw, 38px);
  background:
    linear-gradient(145deg, rgba(255, 255, 255, 0.96), rgba(238, 244, 255, 0.88)),
    var(--color-surface);
  border: 1px solid rgba(37, 87, 214, 0.12);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-soft);
}

.notice-card::after {
  content: "";
  position: absolute;
  right: 22px;
  bottom: 22px;
  width: clamp(72px, 24vw, 130px);
  height: clamp(72px, 24vw, 130px);
  background: radial-gradient(circle, rgba(121, 210, 255, 0.45), transparent 70%);
  pointer-events: none;
}

.notice-card__badge {
  width: fit-content;
  padding: 7px 12px;
  color: var(--color-primary);
  font-size: 0.76rem;
  font-weight: 900;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  background: rgba(37, 87, 214, 0.1);
  border-radius: 999px;
}

.notice-card h2 {
  max-width: 420px;
  font-size: clamp(1.8rem, 7vw, 3rem);
}

.notice-card p {
  position: relative;
  z-index: 1;
  margin: 0;
}

.section {
  padding: var(--section-space) 0;
}

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

.section__header {
  max-width: 720px;
  margin-bottom: clamp(24px, 5vw, 42px);
}

.section__header h2 {
  color: var(--color-text);
}

.features {
  display: grid;
  gap: 16px;
}

.feature-card {
  display: grid;
  gap: 14px;
  padding: clamp(20px, 5vw, 30px);
  background: rgba(255, 255, 255, 0.76);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-card);
}

.feature-card__icon {
  display: grid;
  width: 46px;
  height: 46px;
  place-items: center;
  color: var(--color-primary);
  font-weight: 900;
  background: var(--color-surface-soft);
  border-radius: 15px;
}

.feature-card p {
  margin: 0;
}

.contact-panel {
  display: grid;
  gap: 24px;
  align-items: center;
  padding: clamp(24px, 6vw, 48px);
  background: linear-gradient(135deg, #152033, #23427f);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-soft);
}

.contact-panel h2,
.contact-panel p,
.contact-panel .eyebrow {
  color: #ffffff;
}

.contact-panel .eyebrow {
  opacity: 0.78;
}

.contact-panel p {
  max-width: 700px;
  margin: 16px 0 0;
  opacity: 0.78;
}

.site-footer {
  padding: 26px 0;
  color: var(--color-muted);
  border-top: 1px solid var(--color-border);
}

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

.site-footer p {
  margin: 0;
}

.site-footer a {
  width: fit-content;
  color: var(--color-primary);
  font-weight: 800;
}

@media (min-width: 360px) {
  .logo__text {
    display: inline;
  }

  .hero__actions {
    flex-direction: row;
    flex-wrap: wrap;
  }

  .button {
    min-width: 154px;
  }
}

@media (min-width: 430px) {
  .site-footer__inner {
    flex-direction: row;
    align-items: center;
    justify-content: space-between;
  }
}

@media (min-width: 768px) {
  .menu-toggle {
    display: none;
  }

  .site-nav {
    position: static;
    display: flex;
    align-items: center;
    width: auto;
    padding: 0;
    background: transparent;
    border: 0;
    box-shadow: none;
    transform: none;
    opacity: 1;
    visibility: visible;
  }

  .site-nav__link {
    padding: 9px 12px;
  }

  .hero__grid {
    grid-template-columns: minmax(0, 1.1fr) minmax(280px, 0.9fr);
  }

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

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

@media (min-width: 1024px) {
  .header__inner {
    min-height: 82px;
  }

  .hero {
    padding-top: clamp(76px, 9vw, 126px);
  }

  .feature-card {
    min-height: 250px;
  }
}

@media (min-width: 1280px) {
  :root {
    --container: 1200px;
  }

  .hero__grid {
    grid-template-columns: minmax(0, 1.05fr) 440px;
  }
}

@media (min-width: 1440px) {
  :root {
    --container: 1240px;
    --space-page: 40px;
  }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    scroll-behavior: auto !important;
    transition-duration: 0.01ms !important;
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
  }
}