:root {
  --sun: #ffd000;
  --sky: #00aaff;
  --coral: #ff5533;
  --lime: #7ae000;
  --pink: #ff3d7f;
  --cream: #fff8e7;
  --navy: #0a1628;
  --white: #ffffff;
  --font-head: "Boogaloo", cursive;
  --font-body: "Nunito", sans-serif;
  --r: 16px;
}

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

html,
body {
  margin: 0;
  padding: 0;
}

body {
  font-family: var(--font-body);
  background: var(--cream);
  color: var(--navy);
  min-height: 100dvh;
}

.top-stripe {
  height: 10px;
  background: repeating-linear-gradient(
    90deg,
    var(--coral) 0 20px,
    var(--sun) 20px 40px,
    var(--sky) 40px 60px,
    var(--lime) 60px 80px,
    var(--pink) 80px 100px
  );
}

nav {
  background: var(--navy);
  box-shadow: 0 4px 0 var(--sun);
  min-height: 60px;
  display: flex;
  align-items: center;
  padding: 0 16px;
}

.logo-wrap {
  display: flex;
  flex-direction: column;
  line-height: 1;
}

.logo {
  color: var(--white);
  text-decoration: none;
  font-family: var(--font-head);
  font-size: 26px;
  letter-spacing: 1px;
}

.logo-sub {
  font-size: 10px;
  color: rgba(255, 255, 255, 0.55);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin-top: 2px;
}

.hero {
  text-align: center;
  padding: 36px 18px 24px;
}

.hero-kicker {
  display: inline-block;
  background: var(--sun);
  border: 2px solid var(--navy);
  border-radius: 999px;
  font-weight: 800;
  padding: 6px 14px;
  margin-bottom: 12px;
}

.hero h1 {
  font-family: var(--font-head);
  font-size: clamp(44px, 12vw, 74px);
  line-height: 0.92;
  margin: 0;
  letter-spacing: 1px;
}

.hero h1 span {
  color: var(--sun);
  display: block;
}

.hero p {
  margin: 14px auto 0;
  max-width: 680px;
  font-weight: 700;
  font-size: 18px;
}

.wave {
  height: 20px;
  background: linear-gradient(
    -45deg,
    var(--sun) 25%,
    var(--coral) 25% 50%,
    var(--sky) 50% 75%,
    var(--lime) 75%
  );
}

.form-section {
  padding: 26px 14px 36px;
}

.form-card {
  max-width: 560px;
  margin: 0 auto;
  background: var(--white);
  border: 4px solid var(--navy);
  border-radius: var(--r);
  box-shadow: 7px 7px 0 var(--navy);
  padding: 20px;
}

.form-title {
  margin: 0;
  font-family: var(--font-head);
  font-size: 44px;
  line-height: 0.95;
}

.form-sub {
  margin: 8px 0 20px;
  font-weight: 700;
}

.field {
  margin-bottom: 14px;
}

label {
  display: block;
  margin-bottom: 6px;
  font-weight: 800;
}

.optional {
  font-size: 12px;
  color: #4f5a6a;
}

input[type="text"],
input[type="email"] {
  width: 100%;
  border: 3px solid var(--navy);
  border-radius: 10px;
  padding: 12px 13px;
  font-size: 16px;
  font-family: var(--font-body);
}

input.error {
  border-color: #c62828;
}

.consent-row {
  display: flex;
  gap: 10px;
  align-items: flex-start;
  background: #f7faff;
  border: 2px dashed #8eb7e8;
  border-radius: 12px;
  padding: 10px;
  margin-top: 2px;
}

.consent-row input {
  margin-top: 2px;
}

.consent-text {
  display: grid;
  gap: 4px;
  font-size: 14px;
  line-height: 1.35;
}

.field-error {
  display: none;
  color: #b71c1c;
  font-size: 13px;
  margin-top: 5px;
  font-weight: 700;
}

.field-error.show {
  display: block;
}

.legal-note {
  font-size: 12px;
  line-height: 1.45;
  color: #2f3f58;
  margin: 12px 0 16px;
}

.legal-note a,
.footer-links a {
  color: var(--navy);
  font-weight: 800;
}

.submit-btn {
  width: 100%;
  border: 3px solid var(--navy);
  border-radius: 999px;
  background: var(--sun);
  color: var(--navy);
  font-family: var(--font-head);
  font-size: 30px;
  line-height: 1;
  padding: 12px 18px;
  cursor: pointer;
  box-shadow: 4px 4px 0 var(--navy);
}

.submit-btn:disabled {
  opacity: 0.75;
  cursor: default;
}

.spinner {
  display: none;
}

.submit-btn.loading .btn-text {
  opacity: 0.7;
}

.submit-btn.loading .spinner {
  display: inline-block;
  width: 18px;
  height: 18px;
  border: 3px solid rgba(10, 22, 40, 0.35);
  border-top-color: var(--navy);
  border-radius: 50%;
  vertical-align: middle;
  margin-left: 8px;
  animation: spin 0.8s linear infinite;
}

.success-card {
  display: none;
  text-align: center;
  padding: 8px 8px 2px;
}

.success-card.show {
  display: block;
}

.success-icon {
  display: inline-block;
  border: 2px solid var(--navy);
  border-radius: 999px;
  padding: 6px 12px;
  background: var(--lime);
  font-weight: 900;
  margin-bottom: 10px;
}

.success-card h2 {
  margin: 0 0 8px;
  font-family: var(--font-head);
  font-size: 42px;
  line-height: 0.95;
}

footer {
  background: var(--navy);
  color: var(--white);
  text-align: center;
  padding: 18px 16px 24px;
  font-size: 13px;
}

.footer-links {
  margin-top: 9px;
  display: flex;
  gap: 16px;
  justify-content: center;
}

.footer-links a {
  color: var(--sun);
}

@keyframes spin {
  to {
    transform: rotate(360deg);
  }
}

@media (max-width: 640px) {
  .hero {
    padding-top: 28px;
  }

  .hero h1 {
    font-size: clamp(40px, 14vw, 58px);
  }

  .hero p {
    font-size: 16px;
  }

  .form-title {
    font-size: 36px;
  }

  .submit-btn {
    font-size: 26px;
  }
}