:root {
  --font-sans: "Segoe UI", Arial, Helvetica, sans-serif;
  --bg: #f4f6f8;
  --panel: #ffffff;
  --ink: #1c2536;
  --ink-soft: #637083;
  --border: #e3e7ed;
  --brand: #7a3ff2;
  --brand-dark: #5f2fd1;
  --danger: #d0342c;
  --danger-bg: #fdeceb;
}

* { box-sizing: border-box; }
html, body { margin: 0; height: 100%; font-family: var(--font-sans); color: var(--ink); background: var(--bg); }
.hidden { display: none !important; }

/* Login */
.login-screen { height: 100vh; display: flex; align-items: center; justify-content: center; }
.login-card { background: #fff; border: 1px solid var(--border); border-radius: 12px; padding: 32px; width: 320px; display: flex; flex-direction: column; gap: 12px; }
.login-card h1 { margin: 0; font-size: 20px; }
.login-card .subtitle { margin: 0 0 8px; color: var(--ink-soft); font-size: 13px; }
.login-card input { font-family: inherit; font-size: 14px; padding: 10px 12px; border: 1px solid var(--border); border-radius: 8px; }
.login-card button { background: var(--brand); color: #fff; border: none; padding: 10px; border-radius: 8px; font-weight: 600; cursor: pointer; font-family: inherit; }
.login-card button:hover { background: var(--brand-dark); }
.login-error { color: var(--danger); font-size: 13px; margin: 0; }

/* App shell */
.app { display: flex; height: 100vh; }
.sidebar { width: 220px; flex-shrink: 0; background: #171a24; color: #fff; display: flex; flex-direction: column; padding: 20px 12px; }
.brand { font-size: 16px; font-weight: 700; padding: 8px 12px 20px; }
.brand span { display: block; font-size: 12px; font-weight: 400; color: #9aa2b5; margin-top: 2px; }
.nav-item { text-align: left; background: none; border: none; color: #c7cbdb; padding: 12px; border-radius: 8px; font-size: 14px; cursor: pointer; margin-bottom: 4px; font-family: inherit; }
.nav-item:hover { background: #232838; color: #fff; }
.nav-item.active { background: var(--brand); color: #fff; }
.nav-item.logout { margin-top: auto; color: #e08a86; }
.nav-divider { font-size: 11px; text-transform: uppercase; letter-spacing: 0.5px; color: #6b7185; padding: 16px 12px 6px; }

.card {
  background: var(--panel); border: 1px solid var(--border); border-radius: 12px; padding: 22px;
  display: flex; flex-direction: column; gap: 16px; max-width: 640px;
}
.card label { display: flex; flex-direction: column; gap: 6px; font-size: 13px; color: var(--ink-soft); flex: 1; }
.card input {
  font-family: inherit; font-size: 14px; color: var(--ink); padding: 10px 12px;
  border: 1px solid var(--border); border-radius: 8px; outline: none;
}
.card input:focus { border-color: var(--brand); }
.card .row { display: flex; gap: 16px; }
button.primary {
  align-self: flex-start; background: var(--brand); color: #fff; border: none; padding: 10px 22px;
  border-radius: 8px; font-size: 14px; font-weight: 600; cursor: pointer; font-family: inherit;
}
button.primary:hover { background: var(--brand-dark); }
button.primary:disabled { opacity: 0.6; cursor: default; }

.result { margin-top: 20px; max-width: 640px; }
.result.hidden { display: none; }
.result-card { background: var(--panel); border: 1px solid var(--border); border-radius: 12px; padding: 20px; }
.result-card.error { background: var(--danger-bg); border-color: #f2c6c2; color: var(--danger); }
.result-card.ok { background: #eef8f0; border-color: #bfe6c6; }
.result-card dl { display: grid; grid-template-columns: max-content 1fr; gap: 6px 16px; margin: 0 0 14px; font-size: 13.5px; }
.result-card dt { color: var(--ink-soft); }
.result-card dd { margin: 0; }

.code-box {
  display: flex; align-items: center; gap: 10px; background: #171a24; color: #e9ecf5;
  padding: 12px 14px; border-radius: 8px; font-family: "Consolas", "Courier New", monospace;
  font-size: 15px; letter-spacing: 0.5px; word-break: break-all;
}
.code-box button {
  flex-shrink: 0; background: #2c3245; color: #fff; border: none; border-radius: 6px;
  padding: 6px 12px; font-size: 12px; cursor: pointer; font-family: inherit;
}
.code-box button:hover { background: #3a415a; }

.warning-note {
  margin-top: 10px; font-size: 12.5px; color: #9a6b00; background: #fff6e0;
  border: 1px solid #f2dfa0; padding: 8px 12px; border-radius: 8px;
}

.registry-tabs { display: flex; gap: 8px; margin-bottom: 14px; }
.registry-tab {
  background: #eef0f4; border: none; padding: 8px 16px; border-radius: 20px; font-size: 13px;
  cursor: pointer; font-family: inherit; color: var(--ink-soft);
}
.registry-tab.active { background: var(--brand); color: #fff; }

.subhead { font-size: 15px; margin: 28px 0 10px; color: var(--ink); }
.subhead:first-of-type { margin-top: 6px; }

.input-with-button { display: flex; gap: 8px; align-items: center; }
.input-with-button input { flex-grow: 1; }
button.secondary {
  flex-shrink: 0; background: #eef0f4; color: var(--ink); border: none; padding: 10px 14px;
  border-radius: 8px; font-size: 12.5px; cursor: pointer; font-family: inherit; white-space: nowrap;
}
button.secondary:hover { background: #e2e5ec; }

.fp-copy {
  display: inline-flex; align-items: center; gap: 6px; font-family: "Consolas", "Courier New", monospace;
  font-size: 12px;
}
.fp-copy button {
  background: #eef0f4; border: none; border-radius: 5px; padding: 2px 7px; font-size: 11px;
  cursor: pointer; font-family: inherit; color: var(--ink-soft);
}
.fp-copy button:hover { background: #e2e5ec; }

.content { flex-grow: 1; overflow-y: auto; padding: 32px 40px; }
.panel { display: none; }
.panel.active { display: block; }
h1 { font-size: 22px; margin: 0 0 6px; }
.hint { color: var(--ink-soft); font-size: 13.5px; line-height: 1.5; margin-bottom: 16px; max-width: 720px; }

.summary-bar { display: flex; gap: 16px; margin-bottom: 20px; }
.summary-card { background: var(--panel); border: 1px solid var(--border); border-radius: 10px; padding: 14px 20px; }
.summary-card .num { font-size: 22px; font-weight: 700; }
.summary-card .label { font-size: 12px; color: var(--ink-soft); }
.summary-card.alert .num { color: var(--danger); }

.table-wrap { max-width: 100%; overflow-x: auto; }
table { width: 100%; border-collapse: collapse; font-size: 13px; background: var(--panel); border-radius: 10px; overflow: hidden; }
th, td { text-align: left; padding: 10px 12px; border-bottom: 1px solid var(--border); white-space: nowrap; }
th { color: var(--ink-soft); font-weight: 600; background: #f8f9fb; }
tbody tr:last-child td { border-bottom: none; }
tbody tr.clickable { cursor: pointer; }
tbody tr.clickable:hover { background: #fafbfd; }

.badge { display: inline-block; padding: 2px 8px; border-radius: 20px; font-size: 11.5px; font-weight: 600; }
.badge.ok { background: #eef8f0; color: #2a8a3e; }
.badge.fail { background: var(--danger-bg); color: var(--danger); }

.back-btn { background: none; border: none; color: var(--brand); font-size: 13px; cursor: pointer; padding: 0 0 14px; font-family: inherit; }