/* ==========================================================================
   3D Secure Refund Form - Stylesheet
   FTC-compliant, accessible, print-friendly design
   ========================================================================== */

:root {
  --primary: #1a4d80;
  --primary-dark: #133659;
  --accent: #c8102e;
  --success: #2e7d32;
  --bg: #f4f6f9;
  --surface: #ffffff;
  --text: #1f2933;
  --muted: #61707d;
  --border: #d0d7de;
  --focus: #1a4d80;
  --error-bg: #fdecea;
  --error-border: #c8102e;
  --field-bg: #ffffff;
}

* {
  box-sizing: border-box;
}

html, body {
  margin: 0;
  padding: 0;
}

body {
  font-family: "Segoe UI", "Helvetica Neue", Arial, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.55;
  font-size: 16px;
}

/* ---------- Layout ---------- */
.page {
  max-width: 880px;
  margin: 32px auto;
  padding: 0 16px;
}

.form-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 10px;
  box-shadow: 0 4px 18px rgba(0, 0, 0, 0.06);
  overflow: hidden;
}

/* ---------- Header / Banner ---------- */
.banner {
  background: linear-gradient(120deg, var(--primary), var(--primary-dark));
  color: #fff;
  padding: 22px 28px;
}

.banner-top {
  display: flex;
  align-items: center;
  gap: 14px;
  margin-bottom: 14px;
}

.banner-logo {
  height: 48px;
  width: auto;
  flex-shrink: 0;
  object-fit: contain;
}

.banner-logo-text {
  display: flex;
  flex-direction: column;
  line-height: 1.15;
}

.banner-logo-text .powered {
  font-size: 0.68rem;
  text-transform: uppercase;
  letter-spacing: 1px;
  opacity: 0.85;
  font-weight: 600;
}

.banner-logo-text .form-type {
  font-size: 0.92rem;
  font-weight: 700;
  opacity: 0.95;
}

.banner h1 {
  margin: 0 0 4px;
  font-size: 1.5rem;
  letter-spacing: 0.3px;
  display: flex;
  align-items: center;
  gap: 10px;
}

.banner .lock {
  font-size: 1.3rem;
}

.banner p {
  margin: 0;
  font-size: 0.92rem;
  opacity: 0.92;
}

/* ---------- Security notice strip ---------- */
.security-strip {
  background: #eef5fb;
  border-bottom: 1px solid var(--border);
  padding: 12px 28px;
  font-size: 0.9rem;
  color: var(--primary-dark);
  display: flex;
  align-items: flex-start;
  gap: 10px;
}

.security-strip .icon {
  font-size: 1.1rem;
  line-height: 1.2;
}

/* ---------- Form body ---------- */
.form-body {
  padding: 28px;
}

fieldset {
  border: 1px solid var(--border);
  border-radius: 8px;
  margin: 0 0 26px;
  padding: 18px 20px 8px;
  background: #fbfcfe;
}

legend {
  font-weight: 700;
  color: var(--primary-dark);
  padding: 2px 10px;
  font-size: 1.02rem;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 6px;
}

legend .step {
  display: inline-block;
  background: var(--primary);
  color: #fff;
  border-radius: 50%;
  width: 22px;
  height: 22px;
  text-align: center;
  line-height: 22px;
  font-size: 0.8rem;
  margin-right: 8px;
}

/* ---------- Grid ---------- */
.row {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 16px 18px;
}

.row .full {
  grid-column: 1 / -1;
}

/* ---------- Responsive: Tablet (≤768px) ---------- */
@media (max-width: 768px) {
  .page {
    margin: 18px auto;
    padding: 0 12px;
  }
  .banner {
    padding: 18px 20px;
  }
  .banner h1 {
    font-size: 1.35rem;
  }
  .banner-logo {
    height: 42px;
  }
  .security-strip {
    padding: 11px 20px;
    font-size: 0.86rem;
  }
  .form-body {
    padding: 22px 20px;
  }
  fieldset {
    padding: 16px 16px 8px;
    margin-bottom: 22px;
  }
  .foot {
    padding: 14px 20px 20px;
  }
}

/* ---------- Responsive: Mobile (≤480px) ---------- */
@media (max-width: 480px) {
  body {
    font-size: 15px;
  }
  .page {
    margin: 0 auto;
    padding: 0 8px;
  }
  .form-card {
    border-radius: 0;
    border-left: none;
    border-right: none;
  }
  /* Banner: stack logo + text, smaller sizes */
  .banner {
    padding: 16px 16px;
  }
  .banner-top {
    gap: 10px;
    margin-bottom: 10px;
  }
  .banner-logo {
    height: 34px;
  }
  .banner-logo-text .powered {
    font-size: 0.62rem;
  }
  .banner-logo-text .form-type {
    font-size: 0.82rem;
  }
  .banner h1 {
    font-size: 1.15rem;
    gap: 7px;
  }
  .banner .lock {
    font-size: 1.1rem;
  }
  .banner p {
    font-size: 0.85rem;
  }
  .security-strip {
    padding: 10px 16px;
    font-size: 0.82rem;
  }
  .form-body {
    padding: 18px 14px;
  }
  fieldset {
    padding: 14px 12px 6px;
    margin-bottom: 18px;
    border-radius: 6px;
  }
  legend {
    font-size: 0.92rem;
    padding: 2px 8px;
  }
  legend .step {
    width: 20px;
    height: 20px;
    line-height: 20px;
    font-size: 0.74rem;
  }
  /* Collapse grid to single column */
  .row {
    grid-template-columns: 1fr;
    gap: 12px;
  }
  .inline-2 {
    grid-template-columns: 1fr 1fr;
    gap: 10px;
  }
  /* Larger touch targets for inputs */
  input[type="text"],
  input[type="email"],
  input[type="tel"],
  input[type="date"],
  input[type="number"],
  select,
  textarea {
    padding: 12px 12px;
    font-size: 0.95rem;
  }
  label {
    font-size: 0.88rem;
  }
  .check-item {
    font-size: 0.88rem;
  }
  .check-item input {
    width: 20px;
    height: 20px;
  }
  /* Buttons full-width friendly */
  .actions {
    flex-direction: column;
    gap: 10px;
  }
  .actions .btn {
    width: 100%;
    padding: 14px 20px;
    font-size: 0.98rem;
  }
  .consent {
    padding: 12px 12px;
    font-size: 0.82rem;
  }
  .note-box {
    padding: 10px 12px;
    font-size: 0.8rem;
  }
  .foot {
    padding: 12px 16px 18px;
    font-size: 0.76rem;
  }
  .form-msg {
    padding: 11px 13px;
    font-size: 0.85rem;
  }
}

/* ---------- Responsive: Very small phones (≤360px) ---------- */
@media (max-width: 360px) {
  .banner h1 {
    font-size: 1.05rem;
  }
  .banner-logo {
    height: 30px;
  }
  .inline-2 {
    grid-template-columns: 1fr;
  }
  .form-body {
    padding: 14px 10px;
  }
  fieldset {
    padding: 12px 10px 4px;
  }
}

/* ---------- Fields ---------- */
.field {
  display: flex;
  flex-direction: column;
  margin-bottom: 14px;
}

label {
  font-weight: 600;
  font-size: 0.92rem;
  margin-bottom: 5px;
  color: var(--text);
}

.req {
  color: var(--accent);
  font-weight: 700;
  margin-left: 3px;
}

.req-label {
  font-size: 0.72rem;
  color: var(--muted);
  font-weight: 400;
  margin-left: 4px;
  font-style: italic;
}

input[type="text"],
input[type="email"],
input[type="tel"],
input[type="date"],
input[type="number"],
select,
textarea {
  width: 100%;
  padding: 10px 12px;
  border: 1px solid var(--border);
  border-radius: 6px;
  background: var(--field-bg);
  font-size: 0.95rem;
  color: var(--text);
  transition: border-color 0.15s, box-shadow 0.15s;
}

input:focus,
select:focus,
textarea:focus {
  outline: none;
  border-color: var(--focus);
  box-shadow: 0 0 0 3px rgba(26, 77, 128, 0.18);
}

input:invalid:not(:placeholder-shown) {
  border-color: var(--error-border);
  background: var(--error-bg);
}

textarea {
  resize: vertical;
  min-height: 70px;
}

.hint {
  font-size: 0.78rem;
  color: var(--muted);
  margin-top: 4px;
  line-height: 1.4;
}

/* ---------- Checkbox / Radio groups ---------- */
.check-group {
  display: flex;
  flex-direction: column;
  gap: 8px;
  margin-bottom: 8px;
}

.check-item {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.92rem;
}

.check-item input {
  width: 18px;
  height: 18px;
  accent-color: var(--primary);
}

/* ---------- Inline field groups (MM / YY, card split) ---------- */
.inline-2 {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
}

/* ---------- Proof of identity note ---------- */
.note-box {
  background: #fff8e1;
  border: 1px solid #f0d27a;
  border-left: 4px solid #e0a800;
  border-radius: 6px;
  padding: 12px 14px;
  font-size: 0.85rem;
  color: #6b4e00;
  margin: 6px 0 14px;
  line-height: 1.45;
}

.note-box strong {
  color: #5a4000;
}

/* ---------- Consent ---------- */
.consent {
  background: #f0f4f8;
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 14px 16px;
  margin-bottom: 22px;
  font-size: 0.88rem;
}

.consent .check-item {
  align-items: flex-start;
}

/* ---------- Submit ---------- */
.actions {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
  align-items: center;
}

.btn {
  font-family: inherit;
  font-size: 1rem;
  font-weight: 700;
  border: none;
  border-radius: 8px;
  padding: 13px 26px;
  cursor: pointer;
  transition: background 0.15s, transform 0.05s;
}

.btn-primary {
  background: var(--primary);
  color: #fff;
}

.btn-primary:hover {
  background: var(--primary-dark);
}

.btn-primary:active {
  transform: translateY(1px);
}

.btn-secondary {
  background: #eef1f5;
  color: var(--text);
  border: 1px solid var(--border);
}

.btn-secondary:hover {
  background: #e2e7ed;
}

/* ---------- Validation message ---------- */
.form-msg {
  margin-top: 16px;
  padding: 12px 16px;
  border-radius: 8px;
  font-size: 0.9rem;
  display: none;
}

.form-msg.success {
  display: block;
  background: #e8f5e9;
  border: 1px solid #a5d6a7;
  color: var(--success);
}

.form-msg.error {
  display: block;
  background: var(--error-bg);
  border: 1px solid var(--error-border);
  color: var(--accent);
}

/* ---------- Footer ---------- */
.foot {
  padding: 16px 28px 24px;
  border-top: 1px solid var(--border);
  background: #fafbfc;
  font-size: 0.8rem;
  color: var(--muted);
}

.foot a {
  color: var(--primary);
  text-decoration: none;
}

.foot a:hover {
  text-decoration: underline;
}

/* ---------- Skip link (accessibility) ---------- */
.skip-link {
  position: absolute;
  left: -999px;
  top: 0;
  background: var(--primary);
  color: #fff;
  padding: 8px 14px;
  z-index: 100;
  border-radius: 0 0 6px 0;
}

.skip-link:focus {
  left: 0;
}

/* ---------- Print styles ---------- */
@media print {
  body {
    background: #fff;
  }
  .page {
    margin: 0;
    max-width: none;
  }
  .form-card {
    box-shadow: none;
    border: none;
  }
  .banner {
    background: var(--primary) !important;
    -webkit-print-color-adjust: exact;
    print-color-adjust: exact;
  }
  .btn,
  .form-msg {
    display: none !important;
  }
  fieldset {
    page-break-inside: avoid;
  }
}