@font-face { font-family: 'Gotham'; src: local('Gotham'), local('Gotham-Book'); font-weight: 400; }
@font-face { font-family: 'Gotham'; src: local('Gotham Bold'), local('Gotham-Bold'); font-weight: 700; }
:root {
  --pk-navy: #1D2E58;
  --pk-navy-dark: #15213f;
  --pk-orange: #F16924;
  --pk-orange-light: #f47f3a;
  --pk-cream: #f8f8f9;
  --pk-white: #ffffff;
  --pk-gray: #6b7280;
  --pk-gray-dark: #4b5563;
  --pk-gray-light: #DADBDF;
  --pk-border: #c8c9cd;
  --pk-success: #2d6a4f;
  --pk-error: #b91c1c;
  --radius: 4px;
  --shadow: 0 2px 16px rgba(29,46,88,0.10);
  --shadow-lg: 0 8px 32px rgba(29,46,88,0.14);
}
* { box-sizing: border-box; margin: 0; padding: 0; }
html, body { background: var(--pk-cream); font-family: 'Gotham', 'Barlow', 'Gill Sans', sans-serif; color: var(--pk-navy); min-height: 100vh; }
body { padding-bottom: 60px; }

/* ─── Header ─── */
.header {
  background: white;
  padding: 18px 40px;
  border-bottom: 3px solid var(--pk-orange);
  box-shadow: 0 1px 8px rgba(29,46,88,0.06);
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.header-logo img { height: 52px; width: auto; object-fit: contain; }
.header-badge {
  font-size: 10px; letter-spacing: 0.22em; text-transform: uppercase;
  color: var(--pk-gray); font-weight: 600;
}

/* ─── Hero ─── */
.hero {
  background: linear-gradient(135deg, #1D2E58 0%, #253870 100%);
  padding: 40px 40px 36px; text-align: center;
}
.hero h1 {
  font-family: 'Bebas Neue', 'Impact', sans-serif;
  font-size: 48px; color: white; letter-spacing: 0.02em;
  line-height: 1.05;
}
.hero h1 span { color: var(--pk-orange); }
.hero p { font-size: 14px; color: rgba(255,255,255,0.65); margin-top: 10px; max-width: 560px; margin-left: auto; margin-right: auto; }


/* ─── Layout ─── */
.layout {
  max-width: 1180px; margin: 32px auto 0; padding: 0 24px;
  display: grid; grid-template-columns: minmax(0, 480px) 1fr; gap: 28px;
  align-items: start;
}
@media (max-width: 960px) { .layout { grid-template-columns: 1fr; } }

/* ─── Form Card ─── */
.card {
  background: white; border-radius: 6px; box-shadow: var(--shadow);
  overflow: hidden; animation: slide-up 0.4s ease;
}
@keyframes slide-up { from { opacity: 0; transform: translateY(10px); } to { opacity: 1; transform: translateY(0); } }
.section-label {
  background: var(--pk-gray-light); border-bottom: 1px solid var(--pk-border);
  padding: 12px 28px; font-size: 10px; font-weight: 600; letter-spacing: 0.2em;
  text-transform: uppercase; color: var(--pk-gray-dark);
  display: flex; align-items: center; gap: 10px;
}
.section-label::before {
  content: ''; width: 3px; height: 13px; background: var(--pk-orange);
  border-radius: 2px; flex-shrink: 0;
}
.form-body { padding: 24px 28px; }
.field { margin-bottom: 18px; }
.field:last-child { margin-bottom: 0; }
.field label {
  display: block; font-size: 11px; font-weight: 600; letter-spacing: 0.08em;
  text-transform: uppercase; color: var(--pk-gray-dark); margin-bottom: 6px;
}
.field label .req { color: var(--pk-orange); margin-left: 2px; }
.field input, .field select, .field textarea {
  width: 100%; border: 1.5px solid var(--pk-border); border-radius: var(--radius);
  padding: 10px 13px; font-family: inherit; font-size: 14px; color: var(--pk-navy);
  outline: none; transition: border-color 0.18s, box-shadow 0.18s; background: white;
}
.field input:focus, .field select:focus, .field textarea:focus {
  border-color: var(--pk-orange); box-shadow: 0 0 0 3px rgba(241,105,36,0.08);
}
.field.has-error input, .field.has-error select { border-color: var(--pk-error); }
.field-row { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
.field-hint { font-size: 11px; color: var(--pk-gray); margin-top: 4px; }
.field-group-header {
  font-family: 'Bebas Neue', sans-serif; font-size: 16px; color: var(--pk-navy);
  letter-spacing: 0.06em; margin: 4px 0 12px; padding-bottom: 8px;
  border-bottom: 1px solid var(--pk-gray-light);
}

/* Amount input prefix */
.amount-wrap { position: relative; }
.amount-wrap::before {
  content: '$'; position: absolute; left: 13px; top: 50%; transform: translateY(-50%);
  color: var(--pk-gray); font-size: 14px; pointer-events: none;
}
.amount-wrap input { padding-left: 24px; }

/* Ref number display */
.ref-display {
  background: var(--pk-navy); color: white; padding: 10px 13px;
  border-radius: var(--radius); font-family: 'Courier New', monospace;
  font-size: 15px; letter-spacing: 0.08em; display: flex;
  align-items: center; justify-content: space-between;
}
.ref-display small { font-family: 'Gotham', sans-serif; font-size: 10px; letter-spacing: 0.14em; color: rgba(255,255,255,0.55); text-transform: uppercase; }

.checkbox-row { display: flex; align-items: flex-start; gap: 10px; margin-top: 14px; padding: 12px 13px; background: var(--pk-cream); border-radius: var(--radius); border: 1px solid var(--pk-gray-light); }
.checkbox-row input[type=checkbox] { width: 16px; height: 16px; accent-color: var(--pk-orange); margin-top: 2px; flex-shrink: 0; cursor: pointer; }
.checkbox-row label { font-size: 12px; color: var(--pk-gray-dark); letter-spacing: 0; text-transform: none; font-weight: 400; cursor: pointer; line-height: 1.45; }

/* ─── Actions ─── */
.actions {
  padding: 20px 28px 24px; background: var(--pk-cream);
  border-top: 1px solid var(--pk-gray-light); display: flex; gap: 12px;
}
.btn {
  flex: 1; padding: 13px 20px; border: none; border-radius: var(--radius);
  font-family: inherit; font-size: 14px; font-weight: 600; letter-spacing: 0.04em;
  cursor: pointer; transition: all 0.18s;
}
.btn-primary {
  background: var(--pk-orange); color: white;
  box-shadow: 0 4px 14px rgba(241,105,36,0.28);
}
.btn-primary:hover { background: var(--pk-orange-light); transform: translateY(-1px); box-shadow: 0 6px 18px rgba(241,105,36,0.34); }
.btn-secondary {
  background: white; color: var(--pk-navy); border: 1.5px solid var(--pk-border);
}
.btn-secondary:hover { border-color: var(--pk-navy); }

/* ─── Preview Pane ─── */
.preview-wrap {
  position: sticky; top: 24px;
  background: linear-gradient(180deg, #eef1f6 0%, #e3e8f0 100%);
  border-radius: 6px; box-shadow: var(--shadow); overflow: hidden;
}
.preview-head {
  background: var(--pk-navy); color: white; padding: 12px 20px;
  display: flex; justify-content: space-between; align-items: center;
  font-size: 11px; letter-spacing: 0.18em; text-transform: uppercase;
}
.preview-head .dots { display: flex; gap: 6px; }
.preview-head .dots span { width: 9px; height: 9px; border-radius: 50%; background: rgba(255,255,255,0.25); }
.preview-head .dots span:first-child { background: var(--pk-orange); }
.preview-body { padding: 28px; max-height: 720px; overflow-y: auto; }
.letter {
  background: white; width: 100%; max-width: 612px; margin: 0 auto;
  padding: 48px 56px; box-shadow: 0 4px 24px rgba(0,0,0,0.08);
  font-family: 'Georgia', 'Times New Roman', serif; color: #111;
  font-size: 11px; line-height: 1.55; min-height: 700px;
  position: relative;
}
.letter-head { border-bottom: 2px solid var(--pk-navy); padding-bottom: 18px; margin-bottom: 22px; display: flex; justify-content: space-between; align-items: flex-end; }
.letter-head-logo img { height: 44px; width: auto; }
.letter-head-meta { text-align: right; font-family: 'Gotham', sans-serif; font-size: 9px; letter-spacing: 0.14em; text-transform: uppercase; color: var(--pk-gray); line-height: 1.7; }
.letter-head-meta .ref { color: var(--pk-orange); font-weight: 600; }

.letter-title { font-family: 'Gotham', sans-serif; font-size: 20px; font-weight: 700; color: var(--pk-navy); text-transform: uppercase; letter-spacing: 0.08em; margin: 10px 0 4px; }
.letter-subtitle { font-family: 'Gotham', sans-serif; font-size: 9px; color: var(--pk-gray); letter-spacing: 0.2em; text-transform: uppercase; margin-bottom: 26px; }
.letter-date { font-family: 'Gotham', sans-serif; font-size: 10px; color: var(--pk-gray-dark); margin-bottom: 22px; }
.letter-re { font-family: 'Gotham', sans-serif; font-size: 10px; color: var(--pk-navy); margin-bottom: 20px; font-weight: 600; }
.letter-re span { color: var(--pk-gray); font-weight: 400; }
.letter-greeting { margin-bottom: 14px; }
.letter-body p { margin-bottom: 12px; }
.letter-body .highlight { color: var(--pk-orange); font-weight: 700; }
.letter-disclaimer { color: #111; font-size: 11px; }
.letter-signoff { margin-top: 28px; }
.letter-signature { font-family: 'Brush Script MT', 'Lucida Handwriting', cursive; font-size: 22px; color: var(--pk-navy); margin: 6px 0 2px; }
.letter-signer-name { font-family: 'Gotham', sans-serif; font-weight: 700; color: var(--pk-navy); font-size: 11px; }
.letter-signer-title { font-family: 'Gotham', sans-serif; color: var(--pk-gray-dark); font-size: 10px; }
.letter-signer-contact { font-family: 'Gotham', sans-serif; color: var(--pk-gray-dark); font-size: 10px; margin-top: 4px; }

.letter-foot { margin-top: 32px; padding-top: 14px; border-top: 1px solid var(--pk-gray-light); font-family: 'Gotham', sans-serif; font-size: 8px; color: var(--pk-gray); letter-spacing: 0.08em; text-align: center; line-height: 1.5; }
.letter-foot .brand { color: var(--pk-navy); font-weight: 700; letter-spacing: 0.12em; }

/* ─── Success Toast ─── */
.toast { position: fixed; top: 24px; right: 24px; background: var(--pk-success); color: white; padding: 14px 20px; border-radius: var(--radius); font-size: 14px; font-weight: 500; box-shadow: var(--shadow-lg); transform: translateX(400px); transition: transform 0.3s ease; z-index: 999; display: flex; align-items: center; gap: 10px; }
.toast.show { transform: translateX(0); }
.toast::before { content: '✓'; font-weight: 700; font-size: 16px; }

/* ─── Mobile ─── */
@media (max-width: 600px) {
  .header { padding: 16px 20px; }
  .hero { padding: 32px 20px 28px; }
  .hero h1 { font-size: 36px; }
  .layout { padding: 0 16px; margin-top: 20px; }
  .form-body { padding: 20px; }
  .field-row { grid-template-columns: 1fr; }
  .letter { padding: 32px 28px; }
  .preview-body { padding: 16px; max-height: 500px; }
  .actions { flex-direction: column; }
}