:root {
  --bg: #fff8f1;
  --surface: #ffffff;
  --text: #242141;
  --muted: #6f6a86;
  --yellow: #fff38d;
  --coral: #ff6f63;
  --line: #eee4db;
  --shadow: 0 24px 60px rgba(86, 62, 40, 0.08);
  --radius-lg: 30px;
  --radius-sm: 999px;
}

* {
  box-sizing: border-box;
}

body {
  min-height: 100vh;
  margin: 0;
  font-family: "Nunito Sans", "Segoe UI", sans-serif;
  color: var(--text);
  background:
    radial-gradient(circle at 88% 8%, rgba(255, 231, 105, 0.18), transparent 28rem),
    linear-gradient(180deg, #fffaf4 0%, #fff1ea 58%, var(--bg) 100%);
}

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

.page-shell {
  width: min(calc(100% - 2rem), 1180px);
  margin: 0 auto;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  padding: 1.05rem 0;
  background: rgba(255, 248, 241, 0.86);
  backdrop-filter: blur(18px);
}

.site-header .page-shell,
.site-nav {
  display: flex;
  align-items: center;
  gap: 1rem;
  flex-wrap: wrap;
}

.site-header .page-shell {
  justify-content: space-between;
  padding: 1.1rem 2.1rem;
  background: rgba(255, 255, 255, 0.92);
  border: 1px solid rgba(238, 228, 219, 0.9);
  border-radius: 30px;
  box-shadow: var(--shadow);
}

.brand {
  color: var(--muted);
  font-size: 1.28rem;
  font-weight: 700;
}

.site-nav {
  gap: 1.4rem;
}

.site-nav a {
  color: var(--muted);
  font-weight: 700;
}

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

.survey-start {
  width: min(calc(100% - 2rem), 920px);
  min-height: calc(100vh - 130px);
  margin: 0 auto;
  display: grid;
  place-items: center;
  padding: 2rem 0 4rem;
}

.start-card {
  width: 100%;
  padding: clamp(1.4rem, 4vw, 2.4rem);
  background:
    radial-gradient(circle at 92% 12%, rgba(255, 220, 126, 0.38), transparent 18rem),
    radial-gradient(circle at 15% 92%, rgba(255, 111, 99, 0.08), transparent 15rem),
    linear-gradient(135deg, #ffffff 0%, #fffdf9 50%, #fff1df 100%);
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow);
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  padding: 0.55rem 1.05rem;
  background: #ffe9e5;
  color: var(--coral);
  border-radius: var(--radius-sm);
  font-size: 0.78rem;
  font-weight: 800;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

h1 {
  max-width: 760px;
  margin: 1.2rem 0 0.8rem;
  font-size: clamp(2.35rem, 5vw, 4.2rem);
  font-weight: 500;
  line-height: 1.08;
}

p {
  max-width: 620px;
  margin: 0 0 1.4rem;
  color: var(--muted);
  line-height: 1.55;
}

.start-actions {
  display: flex;
  align-items: center;
  gap: 0.85rem;
  flex-wrap: wrap;
}

.button,
.prize-button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 54px;
  padding: 0.85rem 1.55rem;
  border: 0;
  border-radius: var(--radius-sm);
  color: var(--text);
  font: inherit;
  font-weight: 900;
  cursor: pointer;
  box-shadow: 0 12px 28px rgba(255, 231, 105, 0.32);
  transition: 140ms ease;
}

.button {
  background: var(--yellow);
}

.prize-button {
  background: linear-gradient(120deg, #ff6f63, #fff38d, #7eb06f, #70a7ff);
}

.button:hover,
.button:focus-visible,
.prize-button:hover,
.prize-button:focus-visible {
  transform: translateY(-1px);
}

.prize-info {
  margin-top: 1rem;
  padding: 1rem;
  background: rgba(255, 255, 255, 0.72);
  border: 1px solid var(--line);
  border-radius: 18px;
}

.prize-info h2 {
  margin: 0 0 0.45rem;
  font-size: 1.25rem;
}

.prize-info ul {
  display: grid;
  gap: 0.45rem;
  margin: 0;
  padding-left: 1.2rem;
  color: var(--muted);
  line-height: 1.45;
}

.prize-entry-button {
  margin-top: 1rem;
}

.prize-form {
  display: grid;
  gap: 1rem;
  margin-top: 1rem;
  padding: 1rem;
  border: 1px solid var(--line);
  border-radius: 18px;
  background: rgba(255, 255, 255, 0.86);
}

.prize-form[hidden] {
  display: none;
}

.prize-form h2 {
  margin: 0;
  font-size: 1.25rem;
}

.prize-field-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1rem;
}

.prize-field-grid label {
  display: block;
  margin-bottom: 0.35rem;
  color: var(--text);
  font-weight: 800;
}

.prize-field-grid input {
  width: 100%;
  min-height: 46px;
  padding: 0.75rem 0.85rem;
  border: 1px solid var(--line);
  border-radius: 14px;
  background: #fff;
  color: var(--text);
  font: inherit;
}

.prize-form-status {
  min-height: 1.4rem;
  margin: 0;
  color: #c44035;
  font-weight: 800;
}

.prize-form-status.success {
  color: #255434;
}

@media (max-width: 760px) {
  .site-header .page-shell {
    align-items: flex-start;
    flex-direction: column;
    border-radius: 24px;
    padding: 1rem 1.15rem;
  }

  .site-nav {
    gap: 0.9rem;
  }

  .prize-field-grid {
    grid-template-columns: 1fr;
  }
}