/* Inline help tooltip — hover "?" next to a heading to reveal detail. */
.info-tip { display: inline-block; margin-left: 8px; position: relative; vertical-align: middle; }
.info-tip > summary {
  list-style: none; cursor: pointer; width: 18px; height: 18px; border-radius: 50%;
  border: 1px solid var(--accent); color: var(--accent);
  display: inline-flex; align-items: center; justify-content: center;
  font-size: 11px; font-weight: 700; user-select: none; line-height: 1;
}
.info-tip > summary::-webkit-details-marker { display: none; }
.info-tip[open] > summary { background: var(--accent); color: #000; }
.info-tip .info-tip-body {
  display: none; position: absolute; top: 24px; left: 0; z-index: 100;
  width: 380px; padding: 10px 12px;
  background: #0d1414; border: 1px solid var(--border); border-radius: 6px;
  box-shadow: 0 6px 18px rgba(0, 0, 0, 0.5);
  font-size: 12px; line-height: 1.5; font-weight: normal; color: var(--text);
}
.info-tip[open] .info-tip-body { display: block; }
.info-tip .info-tip-body p { margin: 0 0 8px 0; }
.info-tip .info-tip-body p:last-child { margin: 0; }
.info-tip .info-tip-body code { background: rgba(255,255,255,0.08); padding: 1px 4px; border-radius: 3px; font-size: 11px; }
.info-tip .info-tip-body ol, .info-tip .info-tip-body ul { margin: 4px 0 8px 18px; padding: 0; }
.info-tip .info-tip-body li { margin: 0 0 4px 0; }

:root {
  --bg: #0e1116;
  --panel: #161b22;
  --panel-2: #1f262f;
  --border: #2a313c;
  --text: #e6edf3;
  --muted: #8b96a3;
  --accent: #58a6ff;
  --accent-2: #79c0ff;
  --good: #3fb950;
  --bad: #f85149;
  --warn: #d29922;
  --code-bg: #0a0d12;
  --mono: ui-monospace, SFMono-Regular, "SF Mono", Menlo, Consolas, "Liberation Mono", monospace;
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
  background: var(--bg);
  color: var(--text);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  font-size: 15px;
  line-height: 1.5;
}

.bts-panel {
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 10px 14px;
  background: var(--panel-2);
}
.bts-panel > summary {
  cursor: pointer;
  color: var(--muted);
  font-size: 12.5px;
  list-style: none;
  user-select: none;
}
.bts-panel > summary::before { content: "▸ "; }
.bts-panel[open] > summary::before { content: "▾ "; }

/* ---------- Sidebar layout ---------- */
.layout {
  display: flex;
  min-height: 100vh;
  align-items: stretch;
}

.sidebar {
  width: 280px;
  flex: 0 0 280px;
  background: #0a0d12;
  border-right: 1px solid var(--border);
  padding: 20px 14px;
  overflow-y: auto;
  position: sticky;
  top: 0;
  max-height: 100vh;
}

.phase {
  margin-bottom: 22px;
}

.phase-title {
  margin: 0 0 8px;
  padding: 0 6px;
  font-size: 11px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 1.2px;
  color: var(--muted);
}

.sidebar .tab {
  display: block;
  width: 100%;
  text-align: left;
  background: transparent;
  border: 1px solid transparent;
  color: var(--muted);
  padding: 9px 12px;
  font-size: 13px;
  font-weight: 500;
  border-radius: 6px;
  margin: 2px 0;
  cursor: pointer;
  font-family: inherit;
  line-height: 1.35;
  letter-spacing: normal;
  text-transform: none;
}

.sidebar .tab:hover {
  background: var(--panel);
  color: var(--text);
}

.sidebar .tab.active {
  background: var(--panel);
  border-color: var(--border);
  color: var(--accent-2);
}

.main-content {
  flex: 1 1 auto;
  min-width: 0;
}

/* ---------- Collapsible page header ---------- */
.page-header-collapsible {
  border-bottom: 1px solid var(--border);
  background: linear-gradient(180deg, #0e1116 0%, #11151c 100%);
}

.page-header-collapsible > summary {
  list-style: none;
  cursor: pointer;
  padding: 16px 32px;
  display: flex;
  align-items: center;
  gap: 10px;
  user-select: none;
}

.page-header-collapsible > summary::-webkit-details-marker { display: none; }

.page-header-collapsible > summary::before {
  content: "▸";
  font-size: 12px;
  color: var(--muted);
  transition: transform 0.15s ease;
  display: inline-block;
}

.page-header-collapsible[open] > summary::before {
  transform: rotate(90deg);
}

.page-header-title {
  font-size: 18px;
  font-weight: 600;
  letter-spacing: -0.3px;
  color: var(--text);
}

.page-header-body {
  padding: 0 32px 18px 32px;
}

.subtitle {
  color: var(--muted);
  margin: 0 0 12px;
}

.config-banner {
  display: inline-block;
  background: var(--panel-2);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 6px 10px;
  font-family: var(--mono);
  font-size: 12px;
  color: var(--muted);
}

.primer {
  margin: 24px 32px;
  padding: 18px 22px;
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 8px;
}

.primer h2 {
  margin: 0 0 10px;
  font-size: 16px;
  color: var(--accent-2);
}

.primer ol {
  margin: 0;
  padding-left: 22px;
}

.primer li {
  margin-bottom: 8px;
}

.primer code,
.step code,
.tab-intro code {
  background: var(--code-bg);
  border: 1px solid var(--border);
  padding: 1px 6px;
  border-radius: 4px;
  font-family: var(--mono);
  font-size: 13px;
}

.tabs {
  display: flex;
  gap: 4px;
  padding: 0 32px;
  border-bottom: 1px solid var(--border);
  margin-top: 8px;
}

.tab {
  background: transparent;
  border: 1px solid transparent;
  border-bottom: none;
  color: var(--muted);
  padding: 10px 18px;
  font-size: 14px;
  cursor: pointer;
  border-radius: 6px 6px 0 0;
  font-weight: 500;
}

.tab:hover {
  color: var(--text);
}

.tab.active {
  background: var(--panel);
  border-color: var(--border);
  color: var(--accent-2);
}

.tab-content {
  display: none;
  padding: 24px 32px 64px;
}

.tab-content.active {
  display: block;
}

.tab-intro {
  background: var(--panel);
  border-left: 3px solid var(--accent);
  padding: 12px 16px;
  margin: 0 0 24px;
  color: var(--text);
  border-radius: 0 6px 6px 0;
}

.step {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 20px 22px;
  margin-bottom: 20px;
}

.step h3 {
  margin: 0 0 8px;
  color: var(--accent-2);
  font-size: 16px;
  letter-spacing: -0.2px;
}

.explain, .verify {
  color: var(--text);
  margin: 8px 0;
}

.verify-list {
  margin: 4px 0 12px 0;
  padding-left: 22px;
  color: var(--text);
}

.verify-list li {
  margin-bottom: 4px;
}

.explain strong, .verify strong {
  color: var(--accent-2);
}

.form-row {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 12px;
  margin: 14px 0 12px;
}

.form-row label {
  display: flex;
  flex-direction: column;
  gap: 4px;
  font-size: 12px;
  color: var(--muted);
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.form-row input {
  background: var(--code-bg);
  color: var(--text);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 8px 10px;
  font-family: var(--mono);
  font-size: 13px;
  min-width: 240px;
}

button {
  background: var(--accent);
  color: #0b1220;
  border: none;
  padding: 9px 16px;
  border-radius: 6px;
  font-weight: 600;
  font-size: 13px;
  cursor: pointer;
  transition: filter 0.15s ease;
}

button:hover {
  filter: brightness(1.1);
}

button:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

button.danger {
  background: var(--bad);
  color: #fff;
}

.result {
  background: var(--code-bg);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 12px 14px;
  font-family: var(--mono);
  font-size: 12.5px;
  color: var(--text);
  margin: 0;
  overflow-x: auto;
  white-space: pre-wrap;
  word-break: break-word;
  max-height: 360px;
  overflow-y: auto;
}

.result.ok {
  border-color: rgba(63, 185, 80, 0.4);
}

.result.err {
  border-color: rgba(248, 81, 73, 0.4);
}

.io {
  display: grid;
  gap: 12px;
  margin-top: 12px;
}

@media (min-width: 980px) {
  .io {
    grid-template-columns: 1fr 1fr;
  }
}

.io-block {
  display: flex;
  flex-direction: column;
  min-width: 0;
}

.io-label {
  font-size: 11px;
  color: var(--muted);
  text-transform: uppercase;
  letter-spacing: 0.5px;
  font-weight: 600;
  margin-bottom: 6px;
}

.io .result {
  margin-top: 0;
}

.countdown {
  margin-top: 16px;
  padding: 14px;
  background: var(--panel-2);
  border: 1px solid var(--border);
  border-radius: 6px;
  font-family: var(--mono);
  font-size: 13px;
}

.countdown.hidden {
  display: none;
}

.bar {
  background: var(--code-bg);
  border-radius: 4px;
  height: 8px;
  margin: 8px 0 6px;
  overflow: hidden;
}

.bar-fill {
  background: var(--good);
  height: 100%;
  width: 100%;
  transition: width 0.5s linear, background 0.3s ease;
}

.bar-fill.warn { background: var(--warn); }
.bar-fill.bad { background: var(--bad); }

.status {
  font-weight: 600;
}

.status.valid { color: var(--good); }
.status.warn { color: var(--warn); }
.status.expired { color: var(--bad); }

/* ---------- Simulator key/value rows ---------- */
.kv {
  display: flex;
  align-items: center;
  gap: 10px;
  margin: 6px 0;
}

.kv > label {
  width: 130px;
  flex-shrink: 0;
  font-size: 12px;
  color: var(--muted);
  text-transform: uppercase;
  letter-spacing: 0.5px;
  text-align: right;
}

.kv > code,
.kv > input {
  flex: 1;
  min-width: 0;
  background: var(--code-bg);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 7px 10px;
  font-family: var(--mono);
  font-size: 12.5px;
  color: var(--text);
  word-break: break-all;
  overflow-wrap: anywhere;
  min-height: 20px;
}

.kv > button {
  flex-shrink: 0;
  padding: 6px 12px;
  font-size: 12px;
}

.kv > button.copy {
  background: var(--panel-2);
  color: var(--accent-2);
  border: 1px solid var(--border);
  font-weight: 500;
}

.kv > button.copy:hover {
  background: var(--border);
}

button.secondary {
  background: var(--panel-2);
  color: var(--accent-2);
  border: 1px solid var(--border);
}

.step h4 {
  margin: 0 0 10px;
  color: var(--muted);
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 1px;
}

.kv-code {
  margin: 2px 0 10px 142px;
  padding: 6px 10px;
  background: var(--code-bg);
  border-left: 2px solid var(--border);
  border-radius: 0 4px 4px 0;
  font-family: var(--mono);
  font-size: 11.5px;
  line-height: 1.55;
  color: var(--muted);
  white-space: pre;
  overflow-x: auto;
}

/* KMS-bound rows — distinguish wire calls from local crypto */
.kv.kms-call > code {
  border-color: var(--bad);
  box-shadow: 0 0 0 1px rgba(248, 81, 73, 0.25);
}

.kv .kms-tag {
  flex-shrink: 0;
  background: rgba(248, 81, 73, 0.12);
  border: 1px solid var(--bad);
  color: var(--bad);
  font-family: var(--mono);
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 0.5px;
  padding: 3px 7px;
  border-radius: 3px;
}

.kv-code.kms-code {
  border-left-color: var(--bad);
  color: #f0a5a1;
  background: rgba(248, 81, 73, 0.05);
}

@media (max-width: 720px) {
  .kv {
    flex-wrap: wrap;
  }
  .kv > label {
    width: 100%;
    text-align: left;
  }
}

/* Ledger table */
.ledger-table { width: 100%; border-collapse: collapse; margin-top: 8px; font-size: 13px; }
.ledger-table th, .ledger-table td { text-align: left; padding: 6px 8px; border-bottom: 1px solid var(--border); vertical-align: top; }
.ledger-table th { font-weight: 600; color: var(--muted, #888); font-size: 12px; text-transform: uppercase; letter-spacing: 0.04em; }
.ledger-table code { font-size: 12px; }

/* Email tab — collapsible EncryptedContent entity */
details.em-blob {
  margin: 4px 0;
}
details.em-blob > summary {
  cursor: pointer;
  padding: 4px 0;
  color: var(--muted);
}
details.em-blob > summary code { font-size: 11px; color: var(--muted); }
details.em-blob[open] > summary {
  color: var(--text);
  margin-bottom: 4px;
}
table.em-blob-inner {
  width: 100%;
  border-collapse: collapse;
  margin-top: 4px;
  font-size: 11px;
  background: #161b22;          /* slightly lighter than --bg (#0e1116) */
  border: 1px solid var(--border);
  border-radius: 4px;
  overflow: hidden;
}
table.em-blob-inner th,
table.em-blob-inner td {
  padding: 6px 10px;
  vertical-align: top;
  border-bottom: 1px solid var(--border);
}
table.em-blob-inner tr:last-child th,
table.em-blob-inner tr:last-child td { border-bottom: 0; }
table.em-blob-inner th {
  text-align: left;
  font-weight: 600;
  color: var(--muted);
  white-space: nowrap;
  background: #11161d;
}
table.em-blob-inner thead th {
  font-size: 10px;
  text-transform: uppercase;
  letter-spacing: 0.04em;
}
table.em-blob-inner td { word-break: break-all; color: var(--text); }
table.em-blob-inner td code { font-size: 11px; color: var(--text); }