:root {
  --bg: #0a0a0a;
  --card: rgba(20, 20, 20, 0.85);
  --card-border: rgba(255, 165, 0, 0.2);
  --accent: #ff8533;
  --accent-soft: rgba(255, 133, 51, 0.15);
  --text: #e0e0e0;
  --text-dim: #999999;
  --success: #66cc66;
  --error: #ff6666;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  min-height: 100vh;
  background: radial-gradient(circle at top, rgba(255, 133, 51, 0.05), transparent 45%), var(--bg);
  color: var(--text);
  line-height: 1.6;
}

.page {
  max-width: 760px;
  margin: 0 auto;
  padding: 0 1.5rem;
}

.newsletter {
  min-height: 100vh;
  padding: clamp(3rem, 6vw, 6rem) 0 4rem;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 2.5rem;
  text-align: center;
}

.site-title {
  font-size: clamp(3rem, 8vw, 5rem);
  letter-spacing: 0.15em;
  text-transform: uppercase;
  margin: 0;
}

.hero-form-card {
  width: min(560px, 100%);
  background: var(--card);
  border: 1px solid var(--card-border);
  border-radius: 28px;
  padding: clamp(1.75rem, 3vw, 2.5rem);
  position: relative;
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.55);
}

form h3 {
  margin-top: 0;
  font-size: 1.5rem;
}

form p.description {
  color: var(--text-dim);
  margin-top: 0.25rem;
  margin-bottom: 1.5rem;
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  margin-bottom: 1rem;
}

.form-group label {
  font-size: 0.9rem;
  color: var(--text);
}

.form-group label .required {
  color: var(--accent);
  margin-left: 0.25rem;
}

.form-group input {
  background: rgba(20, 20, 20, 0.4);
  border: 1px solid var(--card-border);
  border-radius: 14px;
  padding: 0.9rem 1rem;
  color: var(--text);
  font-size: 1rem;
}

.form-group input:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-soft);
}

.checkbox-field {
  background: rgba(20, 20, 20, 0.4);
  border: 1px solid var(--card-border);
  border-radius: 14px;
  padding: 1rem;
  margin-bottom: 1rem;
}

.checkbox-field label {
  display: flex;
  gap: 0.75rem;
  align-items: flex-start;
  cursor: pointer;
}

.checkbox-field input {
  margin-top: 0.35rem;
  accent-color: var(--accent);
}

button[type="submit"] {
  width: 100%;
  background: var(--accent);
  border: none;
  border-radius: 999px;
  color: var(--bg);
  font-weight: 600;
  padding: 0.95rem 1rem;
  cursor: pointer;
  margin-top: 0.5rem;
  transition: box-shadow 0.3s ease, transform 0.2s ease;
}

button[type="submit"]:hover {
  transform: translateY(-2px);
  box-shadow: 0 15px 35px var(--accent-soft);
}

#formMessage {
  min-height: 1.2rem;
  margin-top: 0.75rem;
  font-size: 0.9rem;
}

.trap-field {
  position: absolute;
  left: -9999px;
  width: 1px;
  height: 1px;
  overflow: hidden;
}

@media (max-width: 600px) {
  .site-title {
    letter-spacing: 0.08em;
  }

  .newsletter {
    gap: 2rem;
  }
}