:root {
  --accent: #0B5FFF;
  --accent-ink: #0847BF;
  --accent-bg: #EAF1FF;
  --accent-border: #C8DAFF;

  --ink-1: #0A0F1A;
  --ink-2: #1F2937;
  --ink-3: #4B5563;
  --ink-4: #6B7280;
  --ink-5: #9CA3AF;

  --line-1: #E5E7EB;
  --line-2: #EEF0F3;
  --line-3: #F4F5F7;

  --bg: #F7F8FA;
  --surface: #FFFFFF;
  --surface-2: #FBFBFD;

  --ok: #0F7A3A;
  --ok-bg: #E7F5EC;
  --warn: #8A5A00;
  --warn-bg: #FFF4D6;
  --err: #B42318;
  --err-bg: #FEECEB;

  --font-sans: 'IBM Plex Sans', system-ui, -apple-system, sans-serif;
  --font-mono: 'IBM Plex Mono', ui-monospace, Menlo, monospace;
  --font-display: 'IBM Plex Sans', system-ui, sans-serif;

  --dens-pad-xl: 40px;
  --dens-pad-lg: 28px;
  --dens-pad-md: 20px;
  --dens-pad-sm: 14px;
  --dens-gap: 16px;
  --dens-row: 14px;

  --radius-sm: 4px;
  --radius-md: 6px;
  --radius-lg: 10px;
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
  background: var(--bg);
  color: var(--ink-1);
  font-family: var(--font-sans);
  font-size: 14px;
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
}

button, input, select { font-family: inherit; font-size: inherit; color: inherit; }

.app {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

.topbar {
  background: var(--surface);
  border-bottom: 1px solid var(--line-1);
  padding: 0 24px;
  height: 56px;
  display: flex;
  align-items: center;
  gap: 24px;
  flex-shrink: 0;
}
.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 15px;
  letter-spacing: -0.01em;
  color: var(--ink-1);
  text-decoration: none;
}
.brand-mark {
  width: 24px; height: 24px;
  background: var(--ink-1);
  border-radius: 4px;
  display: grid;
  place-items: center;
}
.brand-mark::after {
  content: "";
  width: 10px; height: 10px;
  border: 1.5px solid var(--accent);
  border-radius: 2px;
  background: transparent;
}
.brand-sub {
  color: var(--ink-4);
  font-weight: 400;
  padding-left: 12px;
  border-left: 1px solid var(--line-1);
  margin-left: 4px;
}
.topbar-spacer { flex: 1; }
.topbar-nav { display: flex; gap: 4px; }
.topbar-nav a {
  padding: 6px 10px;
  color: var(--ink-3);
  text-decoration: none;
  font-size: 13px;
  font-weight: 500;
  border-radius: var(--radius-sm);
}
.topbar-nav a:hover { background: var(--line-3); color: var(--ink-1); }
.topbar-nav a.active { color: var(--ink-1); background: var(--line-2); }

.lang-toggle {
  display: inline-flex;
  border: 1px solid var(--line-1);
  border-radius: var(--radius-sm);
  overflow: hidden;
  background: var(--surface);
}
.lang-toggle button {
  border: 0;
  background: transparent;
  padding: 4px 10px;
  font-size: 12px;
  font-weight: 500;
  color: var(--ink-3);
  cursor: pointer;
  letter-spacing: 0.02em;
}
.lang-toggle button.active {
  background: var(--ink-1);
  color: #fff;
}

.main {
  flex: 1;
  padding: 40px 24px 80px;
  display: flex;
  justify-content: center;
}
.container { width: 100%; max-width: 860px; }

.context {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 12px;
  color: var(--ink-4);
  margin-bottom: 14px;
  font-family: var(--font-mono);
  letter-spacing: 0.01em;
}
.context .sep { color: var(--ink-5); }
.context .id { color: var(--ink-2); }

.page-title {
  font-family: var(--font-display);
  font-size: 24px;
  font-weight: 600;
  letter-spacing: -0.01em;
  margin: 0 0 6px;
  color: var(--ink-1);
}
.page-sub {
  color: var(--ink-3);
  margin: 0 0 28px;
  font-size: 14px;
  max-width: 600px;
}

.card {
  background: var(--surface);
  border: 1px solid var(--line-1);
  border-radius: var(--radius-lg);
  overflow: hidden;
}
.card + .card { margin-top: 16px; }
.card-head {
  padding: var(--dens-pad-md) var(--dens-pad-lg);
  border-bottom: 1px solid var(--line-1);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  background: var(--surface);
}
.card-head h2 {
  margin: 0;
  font-size: 13px;
  font-weight: 600;
  color: var(--ink-2);
  text-transform: uppercase;
  letter-spacing: 0.06em;
}
.card-body { padding: var(--dens-pad-lg); }

.pill {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 3px 8px 3px 6px;
  font-size: 11px;
  font-weight: 600;
  font-family: var(--font-mono);
  border-radius: 3px;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}
.pill::before {
  content: "";
  width: 6px; height: 6px;
  border-radius: 50%;
}
.pill-locked { background: var(--warn-bg); color: var(--warn); }
.pill-locked::before { background: var(--warn); }
.pill-ready { background: var(--ok-bg); color: var(--ok); }
.pill-ready::before { background: var(--ok); }
.pill-expired { background: var(--err-bg); color: var(--err); }
.pill-expired::before { background: var(--err); }
.pill-consumed { background: var(--line-2); color: var(--ink-3); }
.pill-consumed::before { background: var(--ink-4); }

.doc-header {
  display: grid;
  grid-template-columns: 56px 1fr auto;
  gap: 16px;
  align-items: center;
  padding: var(--dens-pad-lg);
  border-bottom: 1px solid var(--line-1);
  background: var(--surface-2);
}
.doc-icon {
  width: 56px; height: 72px;
  background: #fff;
  border: 1px solid var(--line-1);
  border-radius: 3px;
  position: relative;
  display: grid;
  place-items: center;
  box-shadow: 0 1px 0 rgba(10,15,26,0.02);
}
.doc-icon::before {
  content: "";
  position: absolute;
  top: 0; right: 0;
  border-style: solid;
  border-width: 0 14px 14px 0;
  border-color: transparent var(--line-2) transparent transparent;
}
.doc-icon span {
  font-family: var(--font-mono);
  font-size: 9px;
  font-weight: 600;
  color: var(--accent);
  letter-spacing: 0.06em;
  background: var(--accent-bg);
  padding: 2px 4px;
  border-radius: 2px;
}
.doc-title {
  font-family: var(--font-display);
  font-size: 17px;
  font-weight: 600;
  margin: 0 0 3px;
  color: var(--ink-1);
  letter-spacing: -0.005em;
}
.doc-meta-line {
  font-size: 12px;
  color: var(--ink-4);
  font-family: var(--font-mono);
}

.meta-table {
  width: 100%;
  border-collapse: collapse;
}
.meta-table tr { border-bottom: 1px solid var(--line-2); }
.meta-table tr:last-child { border-bottom: 0; }
.meta-table th, .meta-table td {
  padding: var(--dens-row) var(--dens-pad-lg);
  text-align: left;
  vertical-align: top;
  font-weight: 400;
}
.meta-table th {
  width: 200px;
  color: var(--ink-4);
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  font-weight: 500;
}
.meta-table td {
  color: var(--ink-1);
  font-size: 13px;
}
.meta-table td.mono {
  font-family: var(--font-mono);
  font-size: 12.5px;
  word-break: break-all;
}
.meta-hash {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: var(--line-3);
  padding: 3px 6px;
  border-radius: 3px;
  font-family: var(--font-mono);
  font-size: 11.5px;
  color: var(--ink-2);
  border: 1px solid var(--line-1);
}
.copy-btn {
  border: 0;
  background: transparent;
  color: var(--ink-4);
  cursor: pointer;
  padding: 2px 4px;
  border-radius: 3px;
  font-size: 11px;
}
.copy-btn:hover { color: var(--accent); background: var(--accent-bg); }

.pwd-region { padding: var(--dens-pad-lg); }
.pwd-label {
  font-size: 12px;
  font-weight: 500;
  color: var(--ink-2);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: 8px;
  display: flex;
  align-items: center;
  gap: 8px;
}
.pwd-label .req {
  font-family: var(--font-mono);
  font-weight: 400;
  color: var(--ink-5);
  text-transform: none;
  letter-spacing: 0;
}
.pwd-row {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 10px;
}
.pwd-field {
  position: relative;
  display: flex;
  align-items: center;
}
.pwd-field input {
  width: 100%;
  padding: 12px 80px 12px 40px;
  border: 1px solid var(--line-1);
  border-radius: var(--radius-md);
  background: var(--surface);
  font-family: var(--font-mono);
  font-size: 14px;
  letter-spacing: 0.05em;
  outline: none;
  transition: border-color 0.12s, box-shadow 0.12s;
}
.pwd-field input:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-bg);
}
.pwd-field input.err {
  border-color: var(--err);
  box-shadow: 0 0 0 3px var(--err-bg);
}
.pwd-field .lock-ico {
  position: absolute;
  left: 12px;
  color: var(--ink-4);
  pointer-events: none;
  display: inline-flex;
}
.pwd-toggle {
  position: absolute;
  right: 8px;
  border: 0;
  background: transparent;
  color: var(--ink-4);
  cursor: pointer;
  padding: 4px 8px;
  font-size: 11px;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  border-radius: 3px;
}
.pwd-toggle:hover { background: var(--line-3); color: var(--ink-2); }

.btn {
  border: 0;
  border-radius: var(--radius-md);
  padding: 12px 18px;
  font-weight: 600;
  font-size: 13px;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  transition: background 0.12s, transform 0.06s;
  letter-spacing: 0.01em;
  white-space: nowrap;
}
.btn:active { transform: translateY(1px); }
.btn-primary { background: var(--ink-1); color: #fff; }
.btn-primary:hover { background: #000; }
.btn-primary:disabled { background: var(--ink-5); cursor: not-allowed; }
.btn-accent { background: var(--accent); color: #fff; }
.btn-accent:hover { background: var(--accent-ink); }
.btn-ghost {
  background: transparent;
  color: var(--ink-2);
  border: 1px solid var(--line-1);
}
.btn-ghost:hover { background: var(--line-3); }

.pwd-help {
  margin-top: 10px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 12px;
  color: var(--ink-4);
  gap: 12px;
}
.pwd-help a {
  color: var(--accent);
  text-decoration: none;
  font-weight: 500;
  background: none;
  border: 0;
  cursor: pointer;
  font: inherit;
  padding: 0;
}
.pwd-help a:hover { text-decoration: underline; }

.pwd-error {
  margin-top: 10px;
  padding: 10px 12px;
  background: var(--err-bg);
  border: 1px solid #F7C9C4;
  border-radius: var(--radius-md);
  color: var(--err);
  font-size: 12.5px;
  display: none;
  align-items: center;
  gap: 8px;
}
.pwd-error.show { display: flex; }

.attempts {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--ink-4);
}

.ready-panel {
  padding: var(--dens-pad-lg);
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 16px;
  align-items: center;
}
.ready-text { font-size: 13px; color: var(--ink-2); }
.ready-text strong { color: var(--ink-1); }
.ready-title {
  font-weight: 600;
  color: var(--ink-1);
  font-size: 14px;
  margin-bottom: 4px;
  display: flex;
  align-items: center;
  gap: 6px;
}
.ready-title svg { color: var(--ok); }
.ready-desc { color: var(--ink-3); font-size: 12.5px; }

.expiry-block {
  padding: var(--dens-pad-md) var(--dens-pad-lg);
  border-top: 1px solid var(--line-2);
  display: grid;
  grid-template-columns: 1fr auto;
  align-items: center;
  gap: 16px;
  background: var(--surface-2);
  font-size: 12px;
  color: var(--ink-3);
}
.expiry-label {
  font-family: var(--font-mono);
  font-size: 11.5px;
  color: var(--ink-4);
  letter-spacing: 0.03em;
  margin-bottom: 4px;
}
.expiry-val {
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--ink-1);
  font-weight: 500;
}
.meter {
  width: 220px;
  height: 4px;
  background: var(--line-2);
  border-radius: 2px;
  overflow: hidden;
}
.meter > div {
  height: 100%;
  background: var(--accent);
  transition: width 0.2s;
}
.meter-warn > div { background: var(--warn); }
.meter-err > div { background: var(--err); }

.state-empty {
  padding: 48px 32px;
  text-align: center;
  border-bottom: 1px solid var(--line-1);
}
.state-empty .ico {
  width: 48px; height: 48px;
  margin: 0 auto 16px;
  border-radius: 50%;
  background: var(--line-3);
  display: grid;
  place-items: center;
  color: var(--ink-3);
}
.state-empty.err .ico { background: var(--err-bg); color: var(--err); }
.state-empty.mute .ico { background: var(--line-2); color: var(--ink-4); }
.state-empty h3 {
  margin: 0 0 6px;
  font-family: var(--font-display);
  font-size: 16px;
  font-weight: 600;
  color: var(--ink-1);
}
.state-empty p {
  margin: 0 auto;
  max-width: 380px;
  font-size: 13px;
  color: var(--ink-3);
}

.attest {
  margin-top: 20px;
  font-size: 11.5px;
  color: var(--ink-4);
  text-align: center;
  font-family: var(--font-mono);
  letter-spacing: 0.02em;
}
.attest svg { vertical-align: -3px; margin-right: 4px; }
.attest .dot { color: var(--ink-5); margin: 0 6px; }
.attest a { color: inherit; text-decoration: underline; }

.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(10,15,26,0.4);
  display: none;
  align-items: center;
  justify-content: center;
  z-index: 100;
  padding: 20px;
}
.modal-overlay.show { display: flex; }
.modal {
  background: var(--surface);
  border-radius: var(--radius-lg);
  max-width: 440px;
  width: 100%;
  box-shadow: 0 20px 48px rgba(10,15,26,0.18);
  overflow: hidden;
}
.modal-head {
  padding: 20px 24px;
  border-bottom: 1px solid var(--line-1);
}
.modal-head h3 {
  margin: 0;
  font-family: var(--font-display);
  font-size: 15px;
  font-weight: 600;
}
.modal-body { padding: 20px 24px; font-size: 13px; color: var(--ink-2); }
.modal-body p { margin: 0 0 12px; }
.modal-body label {
  display: block;
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--ink-4);
  font-weight: 600;
  margin-top: 8px;
  margin-bottom: 4px;
}
.modal-body input {
  width: 100%;
  padding: 10px 12px;
  border: 1px solid var(--line-1);
  border-radius: var(--radius-md);
  font-size: 13px;
  outline: none;
}
.modal-body input:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-bg);
}
.modal-foot {
  padding: 14px 24px;
  background: var(--surface-2);
  border-top: 1px solid var(--line-1);
  display: flex;
  justify-content: flex-end;
  gap: 8px;
}
.modal-success {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  padding: 12px;
  background: var(--ok-bg);
  border: 1px solid #BFE1CB;
  border-radius: var(--radius-md);
  color: #0B5E2D;
  font-size: 12.5px;
  margin-top: 10px;
}
.modal-success svg { color: #0F7A3A; flex-shrink: 0; margin-top: 1px; }

.audit {
  font-family: var(--font-mono);
  font-size: 11.5px;
  color: var(--ink-3);
}
.audit-row {
  display: grid;
  grid-template-columns: 160px 1fr;
  padding: 8px var(--dens-pad-lg);
  border-bottom: 1px solid var(--line-2);
  gap: 16px;
}
.audit-row:last-child { border-bottom: 0; }
.audit-row.head {
  background: var(--surface-2);
  font-size: 10.5px;
  letter-spacing: 0.08em;
  color: var(--ink-4);
  font-weight: 600;
}
.audit-row .ts { color: var(--ink-4); }
.audit-row .ev { color: var(--ink-1); }
.audit-row .ev .ok { color: var(--ok); }
.audit-row .ev .err { color: var(--err); }

.ico-svg { width: 16px; height: 16px; flex-shrink: 0; }

@media (max-width: 780px) {
  .doc-header { grid-template-columns: 44px 1fr; }
  .doc-header .pill { grid-column: 1 / -1; justify-self: start; }
  .pwd-row { grid-template-columns: 1fr; }
  .ready-panel { grid-template-columns: 1fr; }
  .expiry-block { grid-template-columns: 1fr; }
  .audit-row { grid-template-columns: 1fr; gap: 4px; }
  .topbar { padding: 0 14px; gap: 12px; }
  .topbar-nav { display: none; }
  .main { padding: 24px 14px 60px; }
  .page-title { font-size: 20px; }
}

@keyframes spin { to { transform: rotate(360deg); } }
.spinner {
  width: 12px; height: 12px;
  border: 2px solid rgba(255,255,255,0.3);
  border-top-color: #fff;
  border-radius: 50%;
  display: inline-block;
  animation: spin 0.7s linear infinite;
}