:root {
  --blue: #1455e8;
  --navy: #071b45;
  --cyan: #26c9e8;
  --ink: #10234d;
  --muted: #60708c;
  --line: #dce6f7;
  --paper: #f5f8ff;
}
* {
  box-sizing: border-box;
}
html {
  scroll-behavior: smooth;
}
body {
  margin: 0;
  color: var(--ink);
  font:
    16px/1.55 Arial,
    sans-serif;
  background: #fff;
}
button,
input,
select,
textarea {
  font: inherit;
}
header {
  position: sticky;
  top: 0;
  z-index: 5;
  height: 72px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 5vw;
  border-bottom: 1px solid var(--line);
  background: #fffffff2;
  backdrop-filter: blur(14px);
}
.logo {
  padding: 8px 11px;
  border-radius: 9px;
  background: var(--blue);
  color: #fff;
  font-size: 21px;
  font-weight: 900;
}
.logo b {
  margin-left: 4px;
  padding: 2px 5px;
  border-radius: 5px;
  background: #fff;
  color: var(--navy);
}
nav {
  display: flex;
  gap: 6px;
}
nav button {
  border: 0;
  border-radius: 99px;
  padding: 10px 15px;
  background: transparent;
  color: #65728b;
  cursor: pointer;
}
nav button.active {
  background: #edf3ff;
  color: var(--blue);
  font-weight: 800;
}
.hero {
  position: relative;
  min-height: 640px;
  overflow: hidden;
  background: var(--paper);
}
.hero:before {
  content: "";
  position: absolute;
  inset: 0;
  background: url("/assets/hero.34582dd4dd2e59c3.png") center/cover no-repeat;
}
.hero:after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(90deg, #f5f9ff 0%, #f5f9ffe9 42%, #f5f9ff12 73%);
}
.hero-copy {
  position: relative;
  z-index: 1;
  max-width: 760px;
  padding: 82px 5vw;
}
.kicker {
  color: var(--blue);
  font-size: 13px;
  font-weight: 900;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}
.hero h1 {
  max-width: 720px;
  margin: 16px 0 24px;
  color: var(--navy);
  font-size: clamp(44px, 6vw, 78px);
  line-height: 0.98;
  letter-spacing: -0.055em;
}
.hero p {
  max-width: 700px;
  color: #445676;
  font-size: 18px;
}
.audiences {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1px;
  background: var(--line);
}
.audiences article {
  padding: 44px 5vw;
  background: #fff;
}
.audiences h2 {
  font-size: 22px;
  line-height: 1.25;
}
.audiences p {
  color: var(--muted);
}
.result {
  padding: 42px 7vw;
  background: var(--navy);
  color: #d6e1f5;
  font-size: 20px;
}
.survey-nav {
  display: flex;
  justify-content: center;
  gap: 10px;
  padding: 42px 20px 18px;
}
.survey-nav button {
  border: 1px solid var(--line);
  border-radius: 14px;
  padding: 14px 20px;
  background: #fff;
  color: var(--ink);
  font-weight: 800;
  cursor: pointer;
}
.survey-nav button.active {
  border-color: var(--blue);
  background: #edf3ff;
  color: var(--blue);
}
.survey {
  display: none;
  max-width: 980px;
  margin: 0 auto;
  padding: 30px 24px 100px;
}
.survey.active {
  display: block;
}
.survey-head {
  margin-bottom: 44px;
}
.survey-head h2 {
  margin: 10px 0 20px;
  color: var(--navy);
  font-size: clamp(32px, 5vw, 52px);
  line-height: 1.08;
  letter-spacing: -0.04em;
}
.survey-head p {
  color: var(--muted);
  font-size: 18px;
}
.identity,
.question {
  margin-top: 22px;
  padding: 28px;
  border: 1px solid var(--line);
  border-radius: 20px;
  background: #fff;
  box-shadow: 0 12px 36px #173e820d;
}
.identity h3,
.question h3 {
  margin: 0 0 20px;
  color: var(--navy);
  font-size: 23px;
}
.fields {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 14px;
}
.fields label {
  display: flex;
  flex-direction: column;
  gap: 6px;
  font-weight: 700;
}
.fields input,
.fields select,
textarea {
  width: 100%;
  min-width: 0;
  border: 1px solid #d8e2f2;
  border-radius: 11px;
  padding: 13px 15px;
  outline: none;
}
.fields input:focus,
.fields select:focus,
textarea:focus {
  border-color: var(--blue);
  box-shadow: 0 0 0 3px #e1e9ff;
}
.instruction {
  display: inline-block;
  margin: 0 0 15px;
  padding: 6px 11px;
  border-radius: 99px;
  background: #eaf1ff;
  color: var(--blue);
  font-size: 13px;
  font-weight: 800;
}
.hint,
.note {
  color: var(--muted);
}
.options {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 9px;
}
.options label {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  padding: 12px;
  border: 1px solid #dbe4f3;
  border-radius: 11px;
  cursor: pointer;
}
.options label:has(input:checked) {
  border-color: var(--blue);
  background: #eef3ff;
  color: var(--blue);
  font-weight: 700;
}
.options input {
  width: 19px;
  height: 19px;
  accent-color: var(--blue);
}
textarea {
  min-height: 150px;
  resize: vertical;
}
.upload {
  display: block;
  margin-top: 18px;
  padding: 25px;
  border: 2px dashed #b8c9e7;
  border-radius: 14px;
  background: #f7faff;
  text-align: center;
}
.upload input {
  margin-top: 14px;
}
.submit {
  display: block;
  margin: 34px auto 0;
  border: 0;
  border-radius: 12px;
  padding: 14px 24px;
  background: var(--blue);
  color: #fff;
  font-weight: 900;
  cursor: pointer;
}
.thanks {
  display: none;
  margin-top: 30px;
  padding: 30px;
  border-radius: 18px;
  background: #eaf7f5;
  color: #08766d;
  text-align: center;
}
.thanks.show {
  display: block;
}
@media (max-width: 800px) {
  nav {
    display: none;
  }
  .hero:after {
    background: linear-gradient(180deg, #f5f9fff8, #f5f9ffcf 65%, #f5f9ff20);
  }
  .audiences {
    grid-template-columns: 1fr;
  }
  .survey-nav {
    flex-direction: column;
  }
  .fields,
  .options {
    grid-template-columns: 1fr;
  }
  .identity,
  .question {
    padding: 22px;
  }
}