:root {
  color-scheme: light;
  --bg: #f7f4ef;
  --bg-deep: #e8e2d8;
  --ink: #0b1f33;
  --ink-soft: #16324a;
  --muted: #3a4a5a;
  --soft: #4a5a6a;
  --line: #d4cdc2;
  --card: #ffffff;
  --on-ink: #f7f4ef;
  --accent: #c4a35a;
  --ok: #1f5c3a;
  --ko: #8b1e1e;
  --warn: #6a4a12;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100vh;
  font-family: "Segoe UI", "Helvetica Neue", Arial, sans-serif;
  background: var(--bg);
  color: var(--ink);
}

.wrap {
  max-width: 40rem;
  margin: 0 auto;
  padding: 2.5rem 1.25rem 4rem;
}

.brand {
  margin: 0;
  font-size: 1.75rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  color: var(--ink);
}

.brand-rule {
  width: 4.5rem;
  height: 2px;
  background: var(--accent);
  margin: 0.5rem 0 1.5rem;
  border: 0;
}

h1 {
  font-size: 1.75rem;
  font-weight: 700;
  margin: 0 0 0.75rem;
}

.lead {
  color: var(--muted);
  line-height: 1.5;
  margin: 0 0 1.5rem;
}

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

.lead.warn {
  color: var(--warn);
  font-weight: 700;
}

.lead.ko {
  color: var(--ko);
  font-weight: 700;
}

.panel {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 1.15rem 1.1rem 1.25rem;
  margin-bottom: 1rem;
}

.form label {
  display: block;
  font-size: 0.8rem;
  margin-bottom: 0.35rem;
  color: var(--soft);
  font-weight: 600;
}

.form input,
.panel > input {
  width: 100%;
  box-sizing: border-box;
  padding: 0.7rem 0.75rem;
  border: 1px solid var(--line);
  border-radius: 12px;
  background: var(--card);
  font-family: ui-monospace, Consolas, monospace;
  font-size: 0.85rem;
  margin-bottom: 0.85rem;
  color: var(--ink);
}

.form input:focus-visible,
.form button:focus-visible,
a:focus-visible {
  outline: 2px solid var(--ink);
  outline-offset: 2px;
}

.form button,
.btn {
  background: var(--ink);
  color: var(--on-ink);
  border: 0;
  border-radius: 12px;
  min-height: 48px;
  padding: 0.75rem 1.1rem;
  font: inherit;
  font-weight: 600;
  cursor: pointer;
}

a {
  color: var(--ink);
  font-weight: 600;
}

.hint {
  color: var(--soft);
  font-size: 0.85rem;
  margin-top: 1.25rem;
}

#result {
  margin: 0 0 1.5rem;
}

.row {
  display: grid;
  grid-template-columns: 9rem 1fr;
  gap: 0.5rem;
  padding: 0.45rem 0;
  border-bottom: 1px solid #ece7df;
  font-size: 0.9rem;
}

.row span {
  color: var(--soft);
}

code {
  font-family: ui-monospace, Consolas, monospace;
  font-size: 0.78rem;
  word-break: break-all;
}

.legal-list {
  line-height: 1.55;
  padding-left: 1.25rem;
  color: var(--muted);
}

.legal-list li {
  margin-bottom: 0.85rem;
}

.legal-foot {
  margin-top: 2rem;
  font-size: 0.85rem;
  color: var(--soft);
}

/* —— Controparte OTP —— */
.page-counterpart .kicker {
  margin: 0 0 0.35rem;
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.02em;
  color: var(--accent);
  text-transform: uppercase;
}

.section-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem;
  margin-bottom: 0.65rem;
}

.section-title {
  margin: 0;
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--ink);
}

.info-circle {
  width: 1.5rem;
  height: 1.5rem;
  border-radius: 999px;
  border: 1.5px solid var(--ink);
  background: transparent;
  color: var(--ink);
  font: inherit;
  font-size: 0.75rem;
  font-weight: 700;
  line-height: 1;
  cursor: pointer;
  flex-shrink: 0;
}

.info-panel {
  margin: 0 0 1rem;
  padding: 0.85rem 0.9rem;
  border-radius: 10px;
  border: 1px solid var(--line);
  background: #f3ebd6;
  color: var(--muted);
  font-size: 0.88rem;
  line-height: 1.45;
}

.info-panel p {
  margin: 0;
}

.hint.tight {
  margin-top: 0.35rem;
  margin-bottom: 1rem;
}

.doc-meta {
  margin-bottom: 0.85rem;
}

.btn-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem;
  margin-bottom: 0.35rem;
}

.btn-secondary {
  background: var(--ink);
  color: var(--on-ink);
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.7rem 1rem;
  border-radius: 12px;
  font-weight: 600;
  min-height: 48px;
}

.btn-ghost {
  background: transparent;
  color: var(--ink);
  border: 1px solid var(--ink);
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.7rem 1rem;
  border-radius: 12px;
  font-weight: 600;
  min-height: 48px;
}

.steps {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 1.15rem;
}

.steps > li {
  display: grid;
  grid-template-columns: 2rem 1fr;
  gap: 0.75rem;
  align-items: start;
}

.step-n {
  width: 2rem;
  height: 2rem;
  border-radius: 999px;
  background: var(--ink);
  color: var(--on-ink);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 0.85rem;
  font-weight: 700;
}

.step-title {
  margin: 0 0 0.2rem;
  font-weight: 700;
  color: var(--ink);
}

.step-desc {
  margin: 0 0 0.65rem;
  font-size: 0.85rem;
  color: var(--soft);
}

.field-label {
  display: block;
  font-size: 0.8rem;
  margin-bottom: 0.35rem;
  color: var(--soft);
  font-weight: 600;
}

.steps input {
  width: 100%;
  box-sizing: border-box;
  padding: 0.85rem 0.9rem;
  border: 1px solid var(--line);
  border-radius: 12px;
  font-size: 1.25rem;
  letter-spacing: 0.35em;
  text-align: center;
  font-family: ui-monospace, Consolas, monospace;
  margin-bottom: 0.65rem;
  color: var(--ink);
  background: #faf8f4;
}

.steps .btn {
  width: 100%;
}

.msg {
  margin: 1rem 0 0;
  font-size: 0.9rem;
  color: var(--muted);
  line-height: 1.4;
}

.msg.ok {
  color: var(--ok);
  font-weight: 600;
}

.msg.ko {
  color: var(--ko);
  font-weight: 600;
}

.success-panel {
  text-align: center;
  padding-top: 1.75rem;
  padding-bottom: 1.75rem;
}

.success-mark {
  width: 3.25rem;
  height: 3.25rem;
  margin: 0 auto 1rem;
  border-radius: 999px;
  background: #e3f0e8;
  color: var(--ok);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  font-weight: 700;
}

.success-panel .section-title {
  margin-bottom: 0.5rem;
}

.success-panel .meta {
  margin-top: 1rem;
  font-size: 0.85rem;
  color: var(--soft);
}