:root {
  --blue: #075bc9;
  --blue-deep: #0053bf;
  --blue-soft: #dbeaff;
  --blue-line: #95bcff;
  --orange: #ff7a18;
  --ink: #083d88;
  --paper: #fbfdff;
  --muted: #6f83a6;
  font-family: Arial, Helvetica, sans-serif;
  color: var(--ink);
  background: var(--paper);
}

* {
  box-sizing: border-box;
}

html,
body {
  width: 100%;
  min-height: 100%;
  margin: 0;
}

body {
  overflow-x: hidden;
  background: var(--paper);
}

.landing {
  position: relative;
  min-height: 100svh;
  overflow: hidden;
  padding: clamp(28px, 3vw, 56px);
  background:
    radial-gradient(circle at 72% 15%, rgba(229, 241, 255, 0.72), rgba(255, 255, 255, 0) 32%),
    linear-gradient(135deg, #ffffff 0%, #ffffff 58%, #f7fbff 100%);
}

.brand-header {
  position: relative;
  z-index: 3;
}

.brand-logo {
  display: block;
  width: clamp(185px, 20vw, 360px);
  height: auto;
}

.hero {
  position: relative;
  z-index: 2;
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: calc(100svh - 140px);
  max-width: 1540px;
  margin: 0 auto;
  padding-right: clamp(180px, 18vw, 300px);
}

.hero-title-group {
  display: grid;
  grid-template-columns: clamp(122px, 10vw, 158px) 2px minmax(0, 1fr);
  align-items: center;
  gap: clamp(28px, 3.2vw, 48px);
}

.assistant-badge {
  display: grid;
  place-items: center;
  width: clamp(122px, 10vw, 158px);
  aspect-ratio: 1;
  border: 1.5px solid var(--orange);
  border-radius: 50%;
  background: #ffffff;
  box-shadow: 0 14px 28px rgba(0, 83, 191, 0.08);
}

.assistant-mark {
  width: 74%;
  height: auto;
  transform: translateY(3%);
}

.title-rule {
  width: 2px;
  height: clamp(112px, 11vw, 172px);
  background: var(--orange);
}

h1 {
  max-width: 720px;
  margin: 0;
  color: var(--blue);
  font-size: clamp(46px, 3.6vw, 60px);
  line-height: 1.07;
  font-weight: 800;
  letter-spacing: 0;
}

.helper-copy {
  position: fixed;
  left: clamp(28px, 3vw, 56px);
  bottom: 26px;
  z-index: 4;
  max-width: 440px;
  margin: 0;
  color: var(--muted);
  font-size: 15px;
  line-height: 1.5;
}

.orb,
.arc {
  position: absolute;
  pointer-events: none;
}

.orb-top {
  top: -190px;
  right: -130px;
  width: min(48vw, 720px);
  aspect-ratio: 1;
  border-radius: 50%;
  background: radial-gradient(circle at 40% 60%, #eaf3ff 0%, #dcecff 62%, rgba(220, 236, 255, 0) 63%);
  opacity: 0.88;
}

.orb-bottom {
  left: -280px;
  bottom: -700px;
  width: min(68vw, 920px);
  aspect-ratio: 1;
  border-radius: 50%;
  background: radial-gradient(circle at 55% 45%, #dcecff 0%, #cfe4ff 62%, rgba(207, 228, 255, 0) 63%);
  opacity: 0.84;
}

.arc-one {
  left: -18vw;
  bottom: -28vw;
  width: 70vw;
  height: 36vw;
  border-top: 2px solid rgba(149, 188, 255, 0.82);
  border-radius: 50% 50% 0 0;
  transform: rotate(10deg);
}

.arc-two {
  left: -23vw;
  bottom: -32vw;
  width: 82vw;
  height: 42vw;
  border-top: 1px solid rgba(149, 188, 255, 0.45);
  border-radius: 50% 50% 0 0;
  transform: rotate(10deg);
}

elevenlabs-convai {
  position: fixed;
  right: 24px;
  bottom: 24px;
  z-index: 10;
}

@media (max-width: 980px) {
  .landing {
    padding: 34px 26px 180px;
  }

  .brand-logo {
    width: min(56vw, 330px);
  }

  .hero {
    display: block;
    min-height: 0;
    padding-top: clamp(150px, 18vh, 250px);
    padding-right: 0;
  }

  .hero-title-group {
    grid-template-columns: minmax(82px, 0.44fr) 2px minmax(0, 1fr);
    gap: clamp(22px, 5vw, 40px);
    max-width: 780px;
    margin: 0 auto;
  }

  .assistant-mark {
    width: 74%;
  }

  .assistant-badge {
    width: min(27vw, 150px);
  }

  .title-rule {
    height: min(35vw, 196px);
  }

  h1 {
    max-width: 460px;
    font-size: clamp(43px, 10.5vw, 72px);
    line-height: 1.14;
  }

  .helper-copy {
    position: static;
    max-width: 620px;
    margin: clamp(70px, 11vh, 120px) auto 0;
    text-align: center;
    font-size: 14px;
  }

  .orb-top {
    top: -170px;
    right: -430px;
    width: 640px;
  }

  .orb-bottom {
    left: -345px;
    bottom: -360px;
    width: 700px;
  }

  .arc-one {
    left: -60vw;
    bottom: -16vw;
    width: 118vw;
    height: 58vw;
  }

  .arc-two {
    left: -65vw;
    bottom: -21vw;
    width: 130vw;
    height: 66vw;
  }
}

@media (max-width: 560px) {
  .landing {
    min-height: 100svh;
    padding: 30px 20px 140px;
  }

  .hero {
    padding-top: clamp(120px, 17vh, 190px);
  }

  .hero-title-group {
    grid-template-columns: 82px 2px minmax(0, 1fr);
    gap: 18px;
  }

  .assistant-mark {
    width: 74%;
  }

  .assistant-badge {
    width: 82px;
  }

  .title-rule {
    height: 148px;
  }

  h1 {
    font-size: clamp(38px, 12.4vw, 58px);
  }

  .helper-copy {
    display: none;
  }
}

@media (max-height: 720px) and (min-width: 981px) {
  .hero {
    min-height: 540px;
  }

}