*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html { scroll-behavior: smooth; }

body { font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif; background: #fff; color: #111827; -webkit-font-smoothing: antialiased; line-height: 1.5; }

:root { --ink: #0d1117; --body: #374151; --muted: #6b7280; --subtle: #9ca3af;
  --hairline: #e5e7eb; --canvas: #fff; --canvas-soft: #f9fafb;
  --primary: #080808; --primary-soft: #f3f4f6; --primary-ring: rgba(0,0,0,.10);
  --navy: #00356F; --gold: #E4C989;
  --green: #22c55e;
  --s3: 0 4px 16px rgba(0,0,0,.08), 0 2px 4px rgba(0,0,0,.04);
  --s4: 0 8px 32px rgba(0,0,0,.12), 0 4px 8px rgba(0,0,0,.06);
  --r-sm: 8px; --r-md: 12px; --r-lg: 16px; --r-xl: 24px; --r-full: 9999px; }

a { color: inherit; text-decoration: none; }

button { font-family: inherit; }

input, select, textarea { font-family: inherit; }

svg.icon { display: inline-block; vertical-align: middle; flex-shrink: 0; }

@keyframes fadeUp {
 from { opacity: 0; transform: translateY(16px); } to { opacity: 1; transform: none; } 
}

@keyframes scaleIn {
 from { opacity: 0; transform: scale(.96); } to { opacity: 1; transform: scale(1); } 
}

/* ── Buttons ── */

.btn { display: inline-flex; align-items: center; justify-content: center; gap: 8px; font-size: 15px; font-weight: 500; line-height: 1.4; letter-spacing: -.1px; white-space: nowrap; cursor: pointer; border: none; border-radius: var(--r-sm); padding: 12px 22px; transition: background .18s, box-shadow .18s, transform .12s; }

.btn:active { transform: scale(.98); }

.btn-primary { background: #080808; color: #fff; box-shadow: 0 1px 3px rgba(0,0,0,.18); }

.btn-primary:hover { background: #222; box-shadow: 0 3px 8px rgba(0,0,0,.28); }

.btn-on-dark { background: #fff; color: #080808; box-shadow: 0 2px 8px rgba(0,0,0,.12); }

.btn-on-dark:hover { background: #f3f4f6; }

.btn-lg { font-size: 16px; padding: 14px 28px; }

.btn-full { width: 100%; }

.container { max-width: 1240px; margin: 0 auto; padding: 0 32px; }

/* ── Page hero ── */

.page-hero { background: #080808; padding: 64px 0; }

.hero-eyebrow { display: inline-flex; align-items: center; gap: 8px; font-size: 12px; font-weight: 600; letter-spacing: .8px; text-transform: uppercase; color: rgba(255,255,255,.45); margin-bottom: 16px; }

.hero-eyebrow-dot { width: 6px; height: 6px; border-radius: 50%; background: #22c55e; }

.page-hero-title { font-size: clamp(34px, 4.5vw, 52px); font-weight: 700; letter-spacing: -1px; color: #fff; line-height: 1.06; margin: 0 0 16px; text-wrap: balance; }

.page-hero-sub { font-size: 17px; line-height: 1.65; color: rgba(255,255,255,.6); margin: 0 0 0; text-wrap: pretty; }

.page-hero-inner { max-width: 680px; }

/* ── Referral form section ── */

.referral-section { padding: 72px 0 100px; }

.referral-layout { display: grid; grid-template-columns: 1fr 600px; gap: 80px; align-items: start; }

/* Left context */

.referral-context { position: sticky; top: 90px; }

.referral-context-eyebrow { font-size: 11.5px; font-weight: 600; letter-spacing: 1px; text-transform: uppercase; color: var(--muted); margin-bottom: 14px; }

.referral-context-title { font-size: clamp(24px, 2.5vw, 32px); font-weight: 700; letter-spacing: -.6px; line-height: 1.15; color: var(--ink); margin: 0 0 16px; }

.referral-context-body { font-size: 15px; line-height: 1.75; color: var(--body); margin-bottom: 32px; }

.info-card { background: var(--canvas-soft); border: 1px solid var(--hairline); border-radius: var(--r-lg); padding: 22px 24px; margin-bottom: 20px; }

.info-card-title { font-size: 12px; font-weight: 600; letter-spacing: .6px; text-transform: uppercase; color: var(--subtle); margin-bottom: 14px; }

.info-row { display: flex; align-items: center; gap: 10px; padding: 8px 0; border-bottom: 1px solid var(--hairline); font-size: 14px; color: var(--body); }

.info-row:last-child { border-bottom: none; }

.info-row a { color: var(--ink); font-weight: 500; }

.info-row a:hover { text-decoration: underline; }

.accepted-badge { display: inline-flex; align-items: center; gap: 6px; font-size: 13px; font-weight: 500; color: #166534; background: #f0fdf4; border: 1px solid #bbf7d0; border-radius: var(--r-full); padding: 6px 14px; }

/* Right — form card */

.referral-card { background: #fff; border: 1px solid var(--hairline); border-radius: var(--r-xl); padding: 40px; box-shadow: var(--s3); }

.referral-card-title { font-size: 20px; font-weight: 700; letter-spacing: -.4px; color: var(--ink); margin: 0 0 4px; }

.referral-card-sub { font-size: 14px; color: var(--muted); margin: 0 0 32px; }

/* Form fields */

.field-group { display: flex; flex-direction: column; gap: 18px; }

.field-row { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }

.field-wrap { display: flex; flex-direction: column; }

.field-label { font-size: 13.5px; font-weight: 500; color: var(--ink); margin-bottom: 6px; }

.field-label .req { color: #ef4444; margin-left: 2px; }

.field-input { width: 100%; font-size: 15px; line-height: 1.5; color: var(--ink); background: #fff; border: 1.5px solid var(--hairline); border-radius: var(--r-sm); padding: 11px 14px; outline: none; transition: border-color .15s, box-shadow .15s; appearance: none; -webkit-appearance: none; }

.field-input:focus { border-color: var(--primary); box-shadow: 0 0 0 3px var(--primary-ring); }

.field-input.invalid { border-color: #ef4444 !important; box-shadow: 0 0 0 3px rgba(239, 68, 68, 0.18) !important; }

.field-input::placeholder { color: var(--subtle); }

textarea.field-input { resize: vertical; min-height: 110px; }

/* Section dividers within form */

.form-section-head { font-size: 11px; font-weight: 700; letter-spacing: 1px; text-transform: uppercase; color: var(--navy); margin: 8px 0 4px; padding-bottom: 8px; border-bottom: 2px solid var(--gold); display: inline-block; }

.form-divider { height: 1px; background: var(--hairline); margin: 8px 0; }

/* Instruction checkboxes */

.instructions-group { display: flex; flex-direction: column; gap: 10px; }

.check-item { display: flex; align-items: flex-start; gap: 10px; cursor: pointer; }

.check-item input[type="checkbox"] { margin-top: 2px; width: 16px; height: 16px; accent-color: var(--navy); cursor: pointer; flex-shrink: 0; }

.check-item span { font-size: 14px; color: var(--body); line-height: 1.5; }

/* Reason for referral — 3 column grid */

.reason-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 10px 16px; }

.reason-grid .check-item span { font-size: 13.5px; }

/* Radiographs — 4 column row */

.radio-row { display: grid; grid-template-columns: repeat(4, 1fr); gap: 10px; }

.radio-row .check-item span { font-size: 13px; }

/* Submit row */

.form-submit-row { margin-top: 8px; }

.form-disclaimer { font-size: 12px; color: var(--subtle); line-height: 1.5; margin-top: 12px; text-align: center; }

/* Success */

.referral-success { display: none; text-align: center; padding: 24px 0; }

.success-circle { width: 64px; height: 64px; border-radius: 50%; background: #f0fdf4; margin: 0 auto 18px; display: flex; align-items: center; justify-content: center; }

.success-title { font-size: 22px; font-weight: 700; color: var(--ink); margin: 0 0 8px; }

.success-body { font-size: 15px; line-height: 1.65; color: var(--body); }

/* ── Responsive ── */

@media (max-width: 1100px) {
.referral-layout { grid-template-columns: 1fr; gap: 48px; }

.referral-context { position: static; }
}

@media (max-width: 900px) {
.reason-grid { grid-template-columns: 1fr 1fr; }

.radio-row { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 560px) {
.container { padding: 0 20px; }

.field-row { grid-template-columns: 1fr; }

.referral-card { padding: 24px 20px; }

.reason-grid { grid-template-columns: 1fr; }

.radio-row { grid-template-columns: 1fr 1fr; }
}