:root {
  /* Brand colors pulled directly from the real Smith Pools logo (#3c8dd3).
     --navy is a deepened version of that same blue (for heading contrast),
     --teal is the exact logo blue (for buttons/links/accents) - both derived
     from one brand color rather than two unrelated colors. */
  --navy: #1b3f5f;
  --teal: #3c8dd3;
  --sand: #f6f3ec;
  --white: #ffffff;
  --text: #1f2a30;
  --muted: #5c6b73;
  --border: #d8dfe2;
  --error: #b3261e;
}

* { box-sizing: border-box; }

/* Ensures the native "hidden" attribute always wins, even on elements that
   also carry a class (like .field-row) setting display:flex - without this,
   a hidden .field-row would still render as flex instead of disappearing. */
[hidden] { display: none !important; }

body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  background: var(--sand);
  color: var(--text);
}

.page {
  max-width: 640px;
  margin: 0 auto;
  padding: 0 20px 60px;
}

.header {
  text-align: center;
  padding: 40px 0 24px;
}

.header .logo {
  max-width: 260px;
  width: 100%;
  height: auto;
  display: block;
  margin: 0 auto;
}

.tagline {
  margin: 6px 0 0;
  color: var(--muted);
  font-size: 0.95rem;
}

.card {
  background: var(--white);
  border-radius: 12px;
  padding: 32px;
  box-shadow: 0 4px 20px rgba(11, 61, 92, 0.08);
}

.card h2 {
  margin-top: 0;
  color: var(--navy);
}

.intro {
  color: var(--muted);
  line-height: 1.5;
  margin-bottom: 28px;
}

fieldset {
  border: none;
  padding: 0;
  margin: 0 0 28px;
}

legend {
  font-weight: 600;
  color: var(--navy);
  padding: 0 0 12px;
  font-size: 1.05rem;
  border-bottom: 2px solid var(--sand);
  width: 100%;
  margin-bottom: 16px;
}

.field {
  margin-bottom: 16px;
  flex: 1;
}

.field-row {
  display: flex;
  gap: 12px;
}

.field-small {
  flex: 0 0 90px;
}

label {
  display: block;
  font-weight: 500;
  margin-bottom: 6px;
  font-size: 0.9rem;
  color: var(--text);
}

input[type="text"],
input[type="email"],
input[type="tel"],
select,
textarea {
  width: 100%;
  padding: 10px 12px;
  border: 1px solid var(--border);
  border-radius: 8px;
  font-size: 1rem;
  font-family: inherit;
  background: var(--white);
}

input:focus, select:focus, textarea:focus {
  outline: 2px solid var(--teal);
  outline-offset: 1px;
}

.package-options {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
}

.package-card {
  flex: 1;
  min-width: 220px;
  border: 2px solid var(--border);
  border-radius: 10px;
  padding: 16px;
  cursor: pointer;
  transition: border-color 0.15s ease, background 0.15s ease;
  display: block;
}

.package-card:has(input:checked) {
  border-color: var(--teal);
  background: #eff6fc;
}

.package-card input {
  margin-right: 8px;
}

.package-content h3 {
  margin: 8px 0 6px;
  color: var(--navy);
  font-size: 1.05rem;
}

.package-content p {
  margin: 0;
  color: var(--muted);
  font-size: 0.88rem;
  line-height: 1.4;
}

.spa-notice {
  background: #fff4e5;
  border: 1px solid #f0c674;
  border-radius: 8px;
  padding: 14px 16px;
  margin: -8px 0 16px;
}

.spa-notice p {
  margin: 0;
  color: #6b4e1a;
  font-size: 0.92rem;
  line-height: 1.5;
}

.field-hint {
  font-size: 0.8rem;
  color: var(--muted);
  margin: 4px 0 0;
}

.link-button {
  background: none;
  border: none;
  padding: 0;
  margin-left: 4px;
  color: var(--teal);
  font-size: 0.8rem;
  text-decoration: underline;
  cursor: pointer;
}

.gallon-calculator {
  margin-top: 10px;
  padding: 14px;
  background: var(--sand);
  border-radius: 8px;
}

.secondary-button {
  width: 100%;
  padding: 10px;
  background: var(--white);
  color: var(--teal);
  border: 2px solid var(--teal);
  border-radius: 8px;
  font-size: 0.92rem;
  font-weight: 600;
  cursor: pointer;
  margin-top: 4px;
}

.secondary-button:hover {
  background: #eff6fc;
}

.calc-result {
  margin: 10px 0 0;
  font-size: 0.85rem;
  font-weight: 600;
}

.calc-result.calc-success {
  color: #1a7a3c;
}

.calc-result.calc-error {
  color: var(--error);
}

.price-display {
  margin-top: 18px;
  padding: 16px;
  background: var(--sand);
  border-radius: 10px;
  text-align: center;
}

.price-label {
  display: block;
  font-size: 0.85rem;
  color: var(--muted);
  margin-bottom: 4px;
}

.price-amount {
  display: block;
  font-size: 1.4rem;
  font-weight: 700;
  color: var(--navy);
}

.addon-card {
  display: block;
  border: 2px solid var(--border);
  border-radius: 10px;
  padding: 16px;
  cursor: pointer;
  transition: border-color 0.15s ease, background 0.15s ease;
}

.addon-card:has(input:checked) {
  border-color: var(--teal);
  background: #eff6fc;
}

.addon-card input {
  margin-right: 8px;
}

.addon-content h3 {
  display: inline;
  margin: 0;
  color: var(--navy);
  font-size: 1.05rem;
}

.addon-content p {
  margin: 8px 0 0;
  color: var(--muted);
  font-size: 0.88rem;
  line-height: 1.4;
}

.fine-print {
  font-size: 0.8rem;
  color: var(--muted);
  line-height: 1.5;
  background: var(--sand);
  padding: 14px 16px;
  border-radius: 8px;
  margin-bottom: 20px;
}

button[type="submit"] {
  width: 100%;
  padding: 14px;
  background: var(--teal);
  color: var(--white);
  border: none;
  border-radius: 8px;
  font-size: 1.05rem;
  font-weight: 600;
  cursor: pointer;
  transition: background 0.15s ease;
}

button[type="submit"]:hover {
  background: #3071a9;
}

button[type="submit"]:disabled {
  background: #9fb8bd;
  cursor: not-allowed;
}

.form-message {
  margin-top: 14px;
  font-size: 0.92rem;
  text-align: center;
}

.form-message.success { color: #1a7a3c; }
.form-message.error { color: var(--error); }

.footer {
  text-align: center;
  color: var(--muted);
  font-size: 0.85rem;
  margin-top: 28px;
}

.agreement-box {
  margin: 4px 0 16px;
  padding: 14px 16px;
  background: var(--sand);
  border-radius: 8px;
}

.agreement-check {
  display: flex;
  gap: 10px;
  align-items: flex-start;
  font-size: 0.95rem;
  line-height: 1.4;
  cursor: pointer;
}

.agreement-check input {
  margin-top: 3px;
  flex: none;
}

.agreement-check a {
  color: var(--teal);
  font-weight: 600;
}