:root {
  --bg: #f4f7f8;
  --card: #ffffff;
  --ink: #1c2a32;
  --muted: #5b6c73;
  --brand: #106a6f;
  --line: #d6e2e4;
  --ok: #2c7a4b;
  --warn: #a13f2d;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: "Avenir Next", "Montserrat", sans-serif;
  background: radial-gradient(circle at top right, #d8ecef 0%, var(--bg) 45%);
  color: var(--ink);
}

.page {
  max-width: 980px;
  margin: 0 auto;
  padding: 24px 16px 40px;
}

.hero h1 {
  margin: 0;
  font-size: clamp(1.4rem, 2.8vw, 2rem);
}

.hero p {
  color: var(--muted);
  margin-top: 8px;
}

.card {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 14px;
  padding: 16px;
  margin-top: 16px;
}

.alert {
  margin-top: 16px;
  padding: 12px;
  border-radius: 10px;
  border: 1px solid var(--line);
  background: #fff7f5;
  color: var(--warn);
}

.hidden {
  display: none !important;
}

.signers {
  display: grid;
  gap: 12px;
}

.signer {
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 12px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 12px;
}

.signer strong {
  display: block;
  margin-bottom: 4px;
}

.signed {
  font-weight: 700;
  color: var(--ok);
}

button {
  font: inherit;
  cursor: pointer;
}

.primary {
  border: 0;
  background: var(--brand);
  color: #fff;
  border-radius: 10px;
  padding: 10px 14px;
  font-weight: 700;
}

.primary:disabled {
  opacity: 0.65;
  cursor: not-allowed;
}

.ghost {
  border: 1px dashed var(--brand);
  color: var(--brand);
  background: transparent;
  border-radius: 10px;
  padding: 10px;
}

.switcher {
  margin-top: 14px;
  display: flex;
  gap: 14px;
  flex-wrap: wrap;
}

.form-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 10px;
  margin-top: 14px;
}

.form-grid.full {
  grid-template-columns: 1fr;
}

.field {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

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

.field label {
  font-size: 0.9rem;
  color: var(--muted);
}

.field input {
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: 9px 10px;
}

.actions-col {
  margin-top: 10px;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.modal {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.55);
  display: grid;
  place-items: center;
  padding: 16px;
  z-index: 20;
}

.modal-content {
  position: relative;
  width: min(1024px, 95vw);
  max-height: 92vh;
  overflow: auto;
  background: #fff;
  border-radius: 14px;
  padding: 16px;
}

.modal-content h3 {
  margin-top: 0;
}

.close {
  position: absolute;
  top: 8px;
  right: 8px;
  border: 0;
  width: 32px;
  height: 32px;
  border-radius: 50%;
  background: #edf3f4;
}

.legal-text {
  white-space: pre-wrap;
  line-height: 1.45;
  color: #31444d;
}

.signature-wrap {
  border: 2px dashed #7aa2ae;
  border-radius: 10px;
  width: fit-content;
  max-width: 100%;
  overflow: auto;
}

#signature-canvas {
  display: block;
  touch-action: none;
}

.link-btn {
  margin-top: 6px;
  border: 0;
  background: transparent;
  color: var(--brand);
  font-weight: 700;
  padding: 0;
}

.full {
  width: 100%;
  margin-top: 12px;
}

@media (max-width: 700px) {
  .form-grid {
    grid-template-columns: 1fr;
  }

  .signer {
    flex-direction: column;
    align-items: flex-start;
  }

  .signature-wrap {
    width: 100%;
  }

  #signature-canvas {
    width: 100%;
    height: auto;
  }
}