:root {
  /* University of South Carolina palette: Garnet + Black.
     Chosen for WCAG AA+ contrast and colorblind safety. The design never
     uses hue alone to signal meaning (required fields carry a "*" and text,
     errors carry a "!" and text), so red/green or garnet/black confusion
     can't hide information from anyone. */
  --garnet: #73000a;        /* USC garnet, primary */
  --garnet-dark: #520007;   /* hover/pressed */
  --garnet-deep: #3d0005;   /* hero gradient base */
  --ink: #1a1a1a;           /* near-black body text (12.6:1 on --paper) */
  --paper: #faf7f5;         /* warm off-white background */
  --gray: #4d4d4d;          /* secondary text, 8.3:1 on white, AA for body */
  --border: #ddd6d2;
  --success: #1f7a4d;
  --error: #a01722;         /* dark garnet-red, 6.4:1 on white; paired with text + icon */
  --font: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  --radius: 12px;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: var(--font);
  color: var(--ink);
  background: var(--paper);
  line-height: 1.5;
}

a {
  color: inherit;
}

/* Visible keyboard-focus ring on every interactive element (accessibility). */
a:focus-visible,
button:focus-visible,
input:focus-visible {
  outline: 3px solid var(--garnet);
  outline-offset: 2px;
}

.hero {
  background: radial-gradient(circle at top right, var(--garnet), var(--garnet-deep) 75%);
  color: white;
  padding: 4rem 1.25rem 3.5rem;
  text-align: center;
}

.hero__inner {
  max-width: 640px;
  margin: 0 auto;
}

.hero__eyebrow {
  text-transform: uppercase;
  letter-spacing: 0.08em;
  font-size: 0.8rem;
  font-weight: 700;
  color: #f2c4c8;
  margin: 0 0 0.75rem;
}

.hero h1 {
  font-size: 2.1rem;
  line-height: 1.15;
  margin: 0 0 1rem;
  font-weight: 800;
}

.hero__subhead {
  font-size: 1.05rem;
  color: #f0dadc;
  margin: 0 0 2rem;
}

.hero__cta {
  display: inline-block;
  background: white;
  color: var(--garnet);
  font-weight: 800;
  padding: 0.9rem 2rem;
  border-radius: 999px;
  text-decoration: none;
  font-size: 1.05rem;
  transition: transform 0.15s ease, background 0.15s ease;
}

.hero__cta:hover {
  background: #f0eae7;
  transform: translateY(-1px);
}

.uniques {
  max-width: 640px;
  margin: 0 auto;
  padding: 3rem 1.25rem 0;
}

.uniques__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.25rem;
  margin-bottom: 2.5rem;
}

.divider {
  border: none;
  border-top: 2px solid var(--garnet);
  margin: 0;
}

.unique {
  background: white;
  border: 1px solid var(--border);
  border-top: 4px solid var(--garnet);
  border-radius: var(--radius);
  padding: 1.5rem;
}

.unique h3 {
  margin: 0 0 0.5rem;
  font-size: 1.05rem;
  color: var(--garnet);
}

.unique p {
  margin: 0;
  color: var(--gray);
  font-size: 0.95rem;
}

.guarantee {
  text-align: center;
  font-weight: 700;
  font-size: 1.05rem;
  color: var(--ink);
  border-top: 2px solid var(--garnet);
  padding-top: 1.5rem;
}

.signup {
  max-width: 640px;
  margin: 2.5rem auto 4rem;
  padding: 0 1.25rem;
}

.signup__inner {
  background: white;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 2rem 1.5rem;
  box-shadow: 0 10px 30px -20px rgba(61, 0, 5, 0.35);
}

.signup h2 {
  margin: 0 0 0.5rem;
  font-size: 1.5rem;
  color: var(--garnet);
}

.signup__intro {
  color: var(--gray);
  margin: 0 0 1.75rem;
  font-size: 0.95rem;
}

.field {
  margin-bottom: 1.25rem;
  border: none;
  padding: 0;
}

.field label,
.field legend {
  display: block;
  font-weight: 600;
  font-size: 0.9rem;
  margin-bottom: 0.4rem;
  padding: 0;
}

.required {
  color: var(--garnet);
  margin-left: 0.2rem;
}

.optional {
  color: var(--gray);
  font-weight: 400;
}

input[type="text"],
input[type="email"],
input[type="tel"] {
  width: 100%;
  padding: 0.7rem 0.85rem;
  border: 1px solid var(--border);
  border-radius: 8px;
  font-size: 1rem;
  font-family: inherit;
  background: var(--paper);
}

input:focus {
  outline: 3px solid var(--garnet);
  outline-offset: 1px;
}

.checkbox-grid,
.radio-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 0.5rem;
}

.checkbox,
.radio {
  display: flex;
  align-items: flex-start;
  gap: 0.5rem;
  font-weight: 400;
  font-size: 0.95rem;
  cursor: pointer;
}

/* Tint the native controls garnet where the browser supports it. */
input[type="checkbox"],
input[type="radio"] {
  accent-color: var(--garnet);
}

.checkbox input,
.radio input {
  margin-top: 0.2rem;
  flex-shrink: 0;
}

.checkbox-field .checkbox {
  font-weight: 400;
}

.error {
  color: var(--error);
  font-weight: 600;
  font-size: 0.85rem;
  margin: 0.5rem 0 0;
}

/* "!" marker so the error isn't communicated by color alone. */
.error::before {
  content: "\26A0";
  margin-right: 0.35rem;
}

button[type="submit"] {
  width: 100%;
  background: var(--garnet);
  color: white;
  border: none;
  font-weight: 700;
  font-size: 1.05rem;
  padding: 0.95rem;
  border-radius: 999px;
  cursor: pointer;
  transition: background 0.15s ease;
}

button[type="submit"]:hover {
  background: var(--garnet-dark);
}

button[type="submit"]:disabled {
  background: var(--gray);
  cursor: not-allowed;
}

.disclaimer {
  text-align: center;
  color: var(--gray);
  font-size: 0.8rem;
  margin: 0.75rem 0 0;
}

.success {
  text-align: center;
  padding: 1.5rem 0;
}

.success h3 {
  color: var(--success);
  font-size: 1.4rem;
  margin: 0 0 0.5rem;
}

.success p {
  color: var(--gray);
  margin: 0;
}

.footer {
  text-align: center;
  color: var(--gray);
  font-size: 0.85rem;
  padding: 1.5rem 1.25rem 3rem;
}