* { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
  background: #0b0d0f;
  color: #e7e9eb;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", system-ui, sans-serif;
  font-size: 16px;
  line-height: 1.55;
}

main {
  max-width: 640px;
  margin: 0 auto;
  padding: 3rem 1.5rem 4rem;
}

header { margin-bottom: 2.5rem; }
.eyebrow {
  text-transform: uppercase;
  letter-spacing: 0.08em;
  font-size: 0.75rem;
  color: #6dbf5b;
  margin: 0 0 0.5rem;
  font-weight: 600;
}
h1 {
  font-size: 1.875rem;
  margin: 0 0 0.75rem;
  letter-spacing: -0.01em;
}
.lede {
  color: #c5c9cd;
  margin: 0 0 0.75rem;
  font-size: 0.95rem;
}

fieldset {
  border: 1px solid #2a2f36;
  border-radius: 6px;
  background: #15181c;
  padding: 1.25rem 1.5rem 0.5rem;
  margin: 0 0 1.25rem;
}
legend {
  padding: 0 0.5rem;
  font-size: 0.85rem;
  color: #8a8f95;
  text-transform: uppercase;
  letter-spacing: 0.06em;
}

.row { margin-bottom: 1.25rem; }
.row-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  gap: 0.75rem;
  margin-bottom: 1.25rem;
}
@media (max-width: 520px) {
  .row-grid { grid-template-columns: 1fr; }
}

label {
  display: block;
  font-size: 0.875rem;
  font-weight: 500;
  margin-bottom: 0.375rem;
  color: #e7e9eb;
}
.req { color: #d97a6a; font-weight: 400; }
.hint {
  margin: 0.375rem 0 0;
  font-size: 0.8rem;
  color: #8a8f95;
}

input[type=text],
input[type=email],
input[type=tel],
select {
  width: 100%;
  background: #0b0d0f;
  color: #e7e9eb;
  border: 1px solid #2a2f36;
  border-radius: 4px;
  padding: 0.5rem 0.75rem;
  font: inherit;
}
input:focus, select:focus {
  outline: none;
  border-color: #4a8f3f;
  box-shadow: 0 0 0 2px rgba(74, 143, 63, 0.25);
}
input[aria-invalid="true"] {
  border-color: #d97a6a;
}
select {
  appearance: none;
  -webkit-appearance: none;
  background-image: linear-gradient(45deg, transparent 50%, #8a8f95 50%),
                    linear-gradient(135deg, #8a8f95 50%, transparent 50%);
  background-position: calc(100% - 18px) center, calc(100% - 13px) center;
  background-size: 5px 5px;
  background-repeat: no-repeat;
  padding-right: 2rem;
}

.row.check label {
  display: flex;
  align-items: flex-start;
  gap: 0.625rem;
  font-weight: 400;
  cursor: pointer;
}
.row.check input { margin-top: 0.2rem; }
.row.check span { color: #c5c9cd; font-size: 0.9rem; }

.form-error {
  background: #2a1c1a;
  border: 1px solid #5a2a25;
  color: #e8a89c;
  padding: 0.75rem 1rem;
  border-radius: 4px;
  margin-bottom: 1.25rem;
  font-size: 0.9rem;
}

.actions { margin-top: 0.5rem; }
button {
  font: inherit;
  font-weight: 600;
  font-size: 0.95rem;
  background: #4a8f3f;
  color: #fff;
  border: none;
  border-radius: 4px;
  padding: 0.7rem 1.5rem;
  cursor: pointer;
  transition: filter 0.15s ease;
}
button:hover:not(:disabled) { filter: brightness(1.12); }
button:disabled {
  background: #2a2f36;
  color: #8a8f95;
  cursor: wait;
}

.success {
  background: #15281a;
  border: 1px solid #4a8f3f;
  border-radius: 6px;
  padding: 1.5rem 1.75rem;
  margin-bottom: 2rem;
}
.success h2 { margin: 0 0 0.5rem; color: #6dbf5b; font-size: 1.25rem; }
.success p { margin: 0.25rem 0; color: #c5c9cd; }
.success .meta { font-size: 0.85rem; color: #8a8f95; margin-top: 0.5rem; }
.success .meta.small { font-size: 0.8rem; }
.success code {
  font-family: ui-monospace, "SF Mono", Menlo, monospace;
  background: #0b0d0f;
  padding: 1px 6px;
  border-radius: 3px;
  font-size: 0.85em;
  color: #e7e9eb;
}

footer {
  margin-top: 2.5rem;
  padding-top: 1.5rem;
  border-top: 1px solid #2a2f36;
  font-size: 0.875rem;
  color: #8a8f95;
  line-height: 1.6;
}
footer h3 {
  color: #c5c9cd;
  margin: 0 0 0.75rem;
  font-size: 1rem;
  font-weight: 600;
}
footer p { margin: 0 0 0.85rem; }
footer p:last-child { margin-bottom: 0; }
footer strong { color: #c5c9cd; }
footer code {
  font-family: ui-monospace, "SF Mono", Menlo, monospace;
  background: #15181c;
  padding: 1px 6px;
  border-radius: 3px;
  font-size: 0.85em;
  color: #e7e9eb;
}
footer a { color: #6dbf5b; text-decoration: none; }
footer a:hover { text-decoration: underline; }

.hidden { display: none; }