:root {
  --color-primary: #1771bc;
  --color-secondary: #fdcc03;
  --color-ink: #142033;
  --color-muted: #627084;
  --color-surface: #ffffff;
  --color-page: #f4f8fb;
  --color-border: #d8e3ee;
  --shadow-panel: 0 20px 55px rgba(20, 32, 51, 0.14);
}

* {
  box-sizing: border-box;
}

html {
  background: var(--color-page);
}

body {
  min-height: 100vh;
  color: var(--color-ink);
  font-family: "Prompt", system-ui, sans-serif;
  letter-spacing: 0;
}

.page-shell {
  min-height: 100vh;
  background:
    linear-gradient(145deg, rgba(23, 113, 188, 0.12), rgba(253, 204, 3, 0.16)),
    var(--color-page);
}

.hero-section {
  padding: 2rem 1rem 1.25rem;
  color: var(--color-surface);
  background: linear-gradient(135deg, var(--color-primary), #0e528c);
}

.hero-section .container,
.form-section .container {
  max-width: 920px;
}

.event-kicker {
  display: inline-flex;
  align-items: center;
  min-height: 2rem;
  padding: 0.35rem 0.75rem;
  margin-bottom: 0.9rem;
  border-radius: 999px;
  color: var(--color-ink);
  background: var(--color-secondary);
  font-size: 0.9rem;
  font-weight: 600;
}

.hero-section .title {
  max-width: 780px;
  margin-bottom: 1rem;
  color: var(--color-surface);
  font-weight: 700;
  line-height: 1.18;
}

.event-meta {
  display: grid;
  gap: 0.45rem;
  color: rgba(255, 255, 255, 0.92);
  font-size: 0.98rem;
}

.event-meta span {
  display: block;
}

.form-section {
  padding: 1.25rem 1rem 2.5rem;
}

.form-panel {
  padding: 1.1rem;
  border: 1px solid rgba(23, 113, 188, 0.13);
  border-radius: 8px;
  background: var(--color-surface);
  box-shadow: var(--shadow-panel);
}

.label,
.checkbox {
  color: var(--color-ink);
}

.label {
  font-weight: 600;
}

.required {
  color: #c62828;
}

.input,
.textarea {
  border-color: var(--color-border);
  border-radius: 8px;
  box-shadow: none;
  font-family: inherit;
}

.input:focus,
.textarea:focus {
  border-color: var(--color-primary);
  box-shadow: 0 0 0 0.14rem rgba(23, 113, 188, 0.15);
}

.solar-fieldset {
  padding: 0;
  margin: 0 0 1rem;
  border: 0;
}

.solar-options {
  display: grid;
  grid-template-columns: 1fr;
  gap: 0.75rem;
}

.radio-card {
  display: flex;
  align-items: center;
  gap: 0.65rem;
  min-height: 3rem;
  padding: 0.85rem 1rem;
  border: 1px solid var(--color-border);
  border-radius: 8px;
  background: #fbfdff;
  color: var(--color-ink);
  font-weight: 500;
  cursor: pointer;
}

.radio-card:has(input:checked) {
  border-color: var(--color-primary);
  background: rgba(23, 113, 188, 0.08);
}

.radio-card input,
.checkbox input {
  accent-color: var(--color-primary);
}

.consent-field {
  padding: 0.9rem;
  border-radius: 8px;
  background: rgba(253, 204, 3, 0.16);
}

.consent-field .checkbox {
  display: flex;
  align-items: flex-start;
  gap: 0.65rem;
  line-height: 1.55;
}

.consent-field input {
  flex: 0 0 auto;
  margin-top: 0.28rem;
}

.form-actions {
  padding-top: 0.5rem;
}

.submit-button {
  width: 100%;
  min-height: 3.1rem;
  border: 0;
  border-radius: 8px;
  background: var(--color-primary);
  color: var(--color-surface);
  font-family: inherit;
  font-size: 1.05rem;
  font-weight: 700;
}

.submit-button:hover,
.submit-button:focus {
  background: #105b9b;
  color: var(--color-surface);
}

.submit-button.is-loading {
  color: transparent;
}

.notification {
  border-radius: 8px;
  font-size: 0.95rem;
}

.seminar-image {
  margin: 1.25rem 0 0;
  overflow: hidden;
  border-radius: 8px;
  background: var(--color-surface);
  box-shadow: 0 14px 34px rgba(20, 32, 51, 0.12);
}

.seminar-image img {
  display: block;
  width: 100%;
  height: auto;
}

@media screen and (min-width: 640px) {
  .hero-section {
    padding: 3rem 1.5rem 2rem;
  }

  .form-section {
    padding: 2rem 1.5rem 4rem;
  }

  .form-panel {
    padding: 1.5rem;
  }

  .event-meta {
    display: flex;
    flex-wrap: wrap;
    gap: 0.75rem 1.25rem;
  }

  .solar-options {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .submit-button {
    width: auto;
    min-width: 220px;
    padding-inline: 2rem;
  }
}

@media screen and (min-width: 960px) {
  .hero-section {
    padding-top: 4rem;
  }

  .form-panel {
    padding: 2rem;
  }
}