:root {
  --blue: #1596d2;
  --blue-dark: #0e6f9f;
  --green: #61c929;
  --yellow: #f6c21d;
  --pink: #e98abd;
  --ink: #25313a;
  --muted: #67727a;
  --line: #dfe7eb;
  --paper: #ffffff;
  --soft: #f8fbfd;
  --danger: #9b2c2c;
  --success: #2f9e44;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: Arial, Helvetica, sans-serif;
  color: var(--ink);
  background: #f7fafc;
  line-height: 1.55;
}

.page-shell {
  width: min(920px, calc(100% - 28px));
  margin: 32px auto;
}

.card {
  background: var(--paper);
  border: 1px solid var(--line);
  border-radius: 16px;
  overflow: hidden;
  box-shadow: 0 12px 34px rgba(31, 92, 120, .08);
}

.hero {
  padding: 26px 34px 30px;
  text-align: center;
  border-top: 6px solid var(--yellow);
  background: #ffffff;
}

.logo {
  width: min(330px, 82vw);
  max-height: 220px;
  object-fit: contain;
  display: block;
  margin: 0 auto 12px;
}

h1, h2, h3 { color: var(--blue-dark); }

h1 {
  margin: 0 0 10px;
  font-size: clamp(1.85rem, 4vw, 2.55rem);
  line-height: 1.15;
}

h2 {
  margin: 0 0 18px;
  padding-bottom: 9px;
  font-size: 1.35rem;
  border-bottom: 2px solid #dceef7;
}

h3 {
  margin: 22px 0 8px;
  font-size: 1.05rem;
  color: var(--blue-dark);
}

.intro {
  margin: 0 auto;
  max-width: 700px;
  font-size: 1.02rem;
}

.notice {
  margin: 0 34px;
  padding: 14px 0 16px;
  border-bottom: 1px solid var(--line);
  color: var(--ink);
}

.notice strong {
  color: var(--blue-dark);
}

.form-section {
  display: block;
  padding: 32px 34px;
  border-top: 1px solid var(--line);
  background: #fff;
}

.section-body { min-width: 0; }

.grid {
  display: grid;
  gap: 18px;
}

.grid.two {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

label {
  display: grid;
  gap: 7px;
  font-weight: 700;
}

input, select {
  width: 100%;
  border: 1px solid #b7c7cf;
  border-radius: 8px;
  padding: 12px 13px;
  font: inherit;
  color: var(--ink);
  background: #fff;
}

input:focus, select:focus {
  outline: 3px solid rgba(21, 150, 210, .14);
  border-color: var(--blue);
}

fieldset {
  border: 0;
  padding: 0;
  margin: 22px 0 0;
}

legend {
  font-weight: 700;
  margin-bottom: 9px;
}

.check-grid {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.choice,
.ack {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  font-weight: 400;
}

.choice {
  padding: 8px 2px;
  background: transparent;
}

.choice input,
.ack input {
  width: 18px;
  height: 18px;
  margin: 2px 0 0;
  flex: 0 0 auto;
  accent-color: var(--blue);
}

ul {
  padding-left: 22px;
  margin-bottom: 18px;
}

.transport-note {
  margin-bottom: 22px;
  padding: 0 0 0 16px;
  border-left: 4px solid var(--blue);
}

.transport-note p {
  margin: 6px 0 0;
}

.important {
  margin: 20px 0;
  padding: 14px 16px;
  border-left: 4px solid var(--yellow);
  background: #fffdf7;
}

.ack {
  margin-top: 16px;
  padding: 12px 0;
  border-top: 1px solid #eef2f4;
}

.ack-stack .ack {
  margin-top: 0;
}

.signature-box {
  margin-top: 24px;
  padding: 20px 0 4px;
  border-top: 1px solid var(--line);
}

.final-ack {
  margin-top: 22px;
  padding: 16px;
  border: 1px solid #d9e8ef;
  border-radius: 8px;
  background: #fbfdfe;
}

button {
  width: 100%;
  margin-top: 22px;
  border: 0;
  border-radius: 8px;
  padding: 14px 18px;
  background: var(--blue);
  color: #fff;
  font-size: 1rem;
  font-weight: 700;
  cursor: pointer;
}

button:hover {
  background: var(--blue-dark);
}

button:disabled {
  opacity: .6;
  cursor: wait;
}

.privacy-note {
  text-align: center;
  color: var(--muted);
  font-size: .88rem;
}

.field-error,
.submit-error {
  color: var(--danger);
  font-weight: 700;
}

.submit-error {
  background: #fff1f1;
  border: 1px solid #edc2c2;
  border-radius: 8px;
  padding: 12px;
  margin-top: 16px;
}

.success-panel {
  padding: 54px 34px;
  text-align: center;
  border-top: 1px solid var(--line);
  background: #fff;
}

.success-mark {
  width: 54px;
  height: 54px;
  margin: 0 auto 16px;
  border-radius: 50%;
  display: grid;
  place-items: center;
  background: var(--success);
  color: white;
  font-size: 1.7rem;
  font-weight: bold;
}

.reference-line {
  display: inline-block;
  padding: 8px 12px;
  background: #f6fafc;
  border-radius: 6px;
}

@media (max-width: 680px) {
  .page-shell {
    width: min(100% - 16px, 920px);
    margin: 8px auto;
  }

  .card {
    border-radius: 10px;
  }

  .hero,
  .form-section,
  .success-panel {
    padding-left: 18px;
    padding-right: 18px;
  }

  .notice {
    margin-left: 18px;
    margin-right: 18px;
  }

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

  .logo {
    width: min(290px, 88vw);
  }
}


.signature-method {
  margin-top: 18px;
}

.signature-options {
  display: flex;
  flex-wrap: wrap;
  gap: 18px;
  margin-bottom: 18px;
}

.signature-help {
  margin: 4px 0 10px;
  color: var(--muted);
}

.signature-pad-wrap {
  width: 100%;
  height: 190px;
  border: 1px solid #b7c7cf;
  border-radius: 8px;
  background: #fff;
  overflow: hidden;
}

#signature-pad {
  display: block;
  width: 100%;
  height: 100%;
  touch-action: none;
  cursor: crosshair;
}

.signature-actions {
  margin-top: 10px;
  display: flex;
  justify-content: flex-end;
}

.secondary-button {
  width: auto;
  margin: 0;
  padding: 9px 14px;
  background: #fff;
  color: var(--blue-dark);
  border: 1px solid #b7c7cf;
  box-shadow: none;
}

.secondary-button:hover {
  background: #f6fafc;
}

@media (max-width: 680px) {
  .signature-pad-wrap {
    height: 165px;
  }
}