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

:root {
  --bg: #071b3e;
  --bg-deep: #04132d;
  --surface: #ffffff;
  --surface-soft: #f4f8ff;
  --text: #10213a;
  --muted: #60718a;
  --blue: #0b3474;
  --blue-light: #1c5cb5;
  --pink: #ef2f83;
  --green: #04a886;
  --yellow: #ffe64a;
  --line: rgba(16, 33, 58, 0.12);
  --line-light: rgba(255, 255, 255, 0.14);
  --shadow: 0 28px 90px rgba(2, 10, 26, 0.25);
  --soft-shadow: 0 18px 46px rgba(7, 27, 62, 0.12);
  --radius: 28px;
  --radius-lg: 44px;
  --container: min(100% - clamp(28px, 6vw, 96px), 1180px);
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-width: 320px;
  overflow-x: hidden;
  color: var(--text);
  background:
    radial-gradient(circle at 18% 8%, rgba(239, 47, 131, 0.18), transparent 24rem),
    radial-gradient(circle at 88% 12%, rgba(255, 230, 74, 0.14), transparent 20rem),
    linear-gradient(180deg, #f9fbff 0%, #edf4ff 44%, #ffffff 100%);
  font-family: Inter, Manrope, Arial, sans-serif;
  line-height: 1.5;
}

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

button,
a {
  -webkit-tap-highlight-color: transparent;
}

button,
input {
  font: inherit;
}

.site-header,
.hero,
.section {
  width: var(--container);
  margin-inline: auto;
}

.site-header {
  position: sticky;
  top: 14px;
  z-index: 20;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 10px;
  border: 1px solid rgba(255, 255, 255, 0.72);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.78);
  box-shadow: 0 16px 42px rgba(7, 27, 62, 0.1);
  backdrop-filter: blur(18px);
}

.logo {
  display: inline-flex;
  align-items: center;
  min-height: 44px;
  padding: 0 16px;
  border-radius: 999px;
  color: var(--text);
  font-size: clamp(0.86rem, 1.35vw, 1rem);
  font-weight: 950;
  letter-spacing: -0.045em;
  white-space: nowrap;
}

.logo span {
  color: var(--pink);
}

.header-note {
  margin: 0;
  padding: 11px 15px;
  border-radius: 999px;
  background: var(--bg);
  color: #ffffff;
  font-size: 0.78rem;
  font-weight: 900;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  white-space: nowrap;
}

.hero {
  position: relative;
  display: flex;
  align-items: center;
  min-height: clamp(540px, 76vh, 720px);
  margin-top: clamp(22px, 4vw, 46px);
  padding: clamp(34px, 6vw, 74px);
  overflow: hidden;
  border: 1px solid var(--line-light);
  border-radius: clamp(30px, 5vw, 62px);
  background:
    radial-gradient(circle at 72% 20%, rgba(28, 92, 181, 0.62), transparent 20rem),
    radial-gradient(circle at 24% 80%, rgba(239, 47, 131, 0.18), transparent 22rem),
    linear-gradient(135deg, var(--bg) 0%, #0b3474 52%, var(--bg-deep) 100%);
  box-shadow: var(--shadow);
}

.hero::before {
  content: "";
  position: absolute;
  right: -18%;
  top: 5%;
  width: min(58vw, 720px);
  aspect-ratio: 1;
  border-radius: 34% 66% 48% 52%;
  background: rgba(255, 255, 255, 0.06);
  transform: rotate(-15deg);
}

.hero-copy {
  position: relative;
  z-index: 2;
  width: min(100%, 980px);
}

.eyebrow {
  width: fit-content;
  margin: 0 0 18px;
  padding: 8px 12px;
  border: 1px solid rgba(239, 47, 131, 0.2);
  border-radius: 999px;
  background: rgba(239, 47, 131, 0.1);
  color: var(--pink);
  font-size: 0.75rem;
  font-weight: 950;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.hero .eyebrow {
  border-color: rgba(255, 230, 74, 0.22);
  background: rgba(255, 230, 74, 0.1);
  color: var(--yellow);
}

.hero h1,
.section h2 {
  margin: 0;
  line-height: 0.98;
  letter-spacing: -0.075em;
}

.hero h1 {
  max-width: 960px;
  color: #ffffff;
  font-size: clamp(3.2rem, 10.2vw, 9.4rem);
}

.hero-text {
  max-width: 700px;
  margin: 24px 0 0;
  color: rgba(255, 255, 255, 0.74);
  font-size: clamp(1.02rem, 1.7vw, 1.28rem);
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 34px;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 52px;
  padding: 14px 21px;
  border: 1px solid transparent;
  border-radius: 999px;
  font-weight: 900;
  transition: transform 180ms ease, box-shadow 180ms ease, background 180ms ease;
}

.button:hover,
.button:focus-visible {
  transform: translateY(-2px);
  box-shadow: 0 18px 44px rgba(239, 47, 131, 0.26);
}

.button-primary {
  background: linear-gradient(135deg, var(--pink), #ff5ba3);
  color: #ffffff;
}

.button-secondary {
  border-color: rgba(255, 255, 255, 0.22);
  background: rgba(255, 255, 255, 0.1);
  color: #ffffff;
}

.section {
  margin-block: clamp(56px, 9vw, 122px);
  scroll-margin-top: 110px;
}

.section-head {
  display: grid;
  gap: 14px;
  max-width: 800px;
  margin-bottom: clamp(24px, 4vw, 40px);
}

.section h2 {
  color: var(--text);
  font-size: clamp(2.2rem, 5.8vw, 5.8rem);
}

.section p {
  color: var(--muted);
  font-size: clamp(1rem, 1.45vw, 1.15rem);
}

.feature-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 16px;
}

.feature-grid article,
.use-list article,
.final-card {
  border: 1px solid rgba(255, 255, 255, 0.76);
  border-radius: var(--radius);
  background: rgba(255, 255, 255, 0.82);
  box-shadow: var(--soft-shadow);
  backdrop-filter: blur(12px);
}

.feature-grid article {
  position: relative;
  min-height: 270px;
  overflow: hidden;
  padding: clamp(22px, 3vw, 32px);
}

.feature-grid article::before {
  content: "";
  position: absolute;
  right: -42px;
  bottom: -48px;
  width: 150px;
  aspect-ratio: 1;
  border-radius: 36px;
  background: rgba(239, 47, 131, 0.11);
  transform: rotate(18deg);
}

.feature-grid span {
  color: var(--pink);
  font-size: 0.78rem;
  font-weight: 950;
  letter-spacing: 0.12em;
}

.feature-grid h3,
.use-list h3 {
  margin: 18px 0 0;
  color: var(--text);
  font-size: clamp(1.35rem, 2.2vw, 2rem);
  line-height: 1.03;
  letter-spacing: -0.055em;
}

.feature-grid p,
.use-list p {
  margin-bottom: 0;
}

.use-section {
  display: grid;
  grid-template-columns: minmax(0, 0.9fr) minmax(300px, 1.1fr);
  gap: clamp(22px, 5vw, 58px);
  align-items: start;
}

.use-list {
  display: grid;
  gap: 14px;
}

.use-list article {
  padding: clamp(22px, 4vw, 34px);
}

.use-list h3 {
  margin-top: 0;
}

.final-card {
  display: grid;
  justify-items: start;
  gap: 22px;
  padding: clamp(30px, 7vw, 74px);
  overflow: hidden;
  border-radius: var(--radius-lg);
  background:
    radial-gradient(circle at 88% 12%, rgba(255, 230, 74, 0.22), transparent 20rem),
    radial-gradient(circle at 12% 88%, rgba(239, 47, 131, 0.15), transparent 18rem),
    #ffffff;
}

.final-card h2 {
  max-width: 920px;
}

.final-card p:not(.eyebrow) {
  max-width: 720px;
  margin: 0;
}

[data-reveal] {
  opacity: 0;
  transform: translateY(22px);
  transition: opacity 520ms ease, transform 520ms ease;
}

[data-reveal].is-visible,
html:not(.js-ready) [data-reveal] {
  opacity: 1;
  transform: none;
}

:focus-visible {
  outline: 3px solid rgba(239, 47, 131, 0.42);
  outline-offset: 3px;
}

@media (max-width: 1120px) {
  .feature-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 900px) {
  .site-header {
    top: 0;
    border-radius: 0 0 24px 24px;
  }

  .use-section {
    grid-template-columns: 1fr;
  }

  .hero {
    min-height: auto;
  }

}

@media (max-width: 680px) {
  :root {
    --container: min(100% - 28px, 1180px);
  }

  .site-header {
    width: 100%;
    align-items: flex-start;
    border-radius: 0 0 22px 22px;
  }

  .logo {
    max-width: 62vw;
    overflow: hidden;
    text-overflow: ellipsis;
  }

  .header-note {
    max-width: 34vw;
    overflow: hidden;
    text-overflow: ellipsis;
  }

  .hero {
    width: min(100% - 20px, 1180px);
    padding: 30px 18px;
    border-radius: 30px;
  }

  .hero-actions,
  .button {
    width: 100%;
  }

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

@media (max-width: 390px) {
  .logo {
    max-width: 58vw;
    padding-inline: 10px;
  }

  .header-note {
    padding-inline: 10px;
    font-size: 0.68rem;
  }

  .hero {
    padding-inline: 14px;
  }

}

@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;
  }
}