:root {
  --bg: #f6f7f9;
  --panel: #ffffff;
  --ink: #12151a;
  --muted: #5c6570;
  --line: #e2e6eb;
  --accent: #3b6ef5;
  --accent-2: #7b48e8;
  --good: #158a4a;
  --bad: #c22f3a;
  --mono: ui-monospace, "SF Mono", "JetBrains Mono", Menlo, Consolas, monospace;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0e1116;
    --panel: #171b22;
    --ink: #e7ebf0;
    --muted: #9aa4b0;
    --line: #262c36;
    --accent: #5b8bff;
    --accent-2: #a07bff;
    --good: #46c98a;
    --bad: #ff6b74;
  }
}
* {
  box-sizing: border-box;
}
html,
body {
  margin: 0;
}
body {
  background: var(--bg);
  color: var(--ink);
  font: 16px/1.55 system-ui, -apple-system, Segoe UI, Roboto, sans-serif;
  padding: clamp(1rem, 4vw, 3rem);
}
main {
  max-width: 760px;
  margin: 0 auto;
}
header h1 {
  font-size: clamp(2rem, 6vw, 2.8rem);
  margin: 0;
  letter-spacing: -0.02em;
  background: linear-gradient(90deg, var(--accent), var(--accent-2));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.tagline {
  color: var(--muted);
  margin: 0.4rem 0 1.6rem;
  max-width: 52ch;
}
.panel,
.progress,
.result {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 14px;
  padding: 1.1rem 1.2rem;
  margin-bottom: 1rem;
}
label {
  display: block;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--muted);
  margin-bottom: 0.5rem;
}
.entry {
  display: flex;
  align-items: flex-start;
  gap: 0.6rem;
}
.input-shell {
  display: grid;
  flex: 1 1 0;
  min-width: 0;
}
input,
textarea {
  flex: 1;
  min-width: 0;
  font-family: var(--mono);
  font-size: 1rem;
  padding: 0.7rem 0.8rem;
  border: 1px solid var(--line);
  border-radius: 10px;
  background: var(--bg);
  color: var(--ink);
}
input:focus,
textarea:focus {
  outline: 2px solid var(--accent);
  border-color: transparent;
}
.number-input,
.input-mirror {
  grid-area: 1 / 1;
  font-family: var(--mono);
  font-size: 1rem;
  line-height: 1.55;
  min-height: calc(1.55em + 1.4rem + 2px);
  overflow-wrap: anywhere;
  padding: 0.7rem 0.8rem;
  white-space: pre-wrap;
  width: 100%;
  word-break: break-all;
}
.number-input {
  height: 100%;
  max-height: none;
  overflow: hidden;
  resize: none;
}
.input-mirror {
  border: 1px solid transparent;
  color: transparent;
  pointer-events: none;
  visibility: hidden;
}
button {
  font: inherit;
  font-weight: 600;
  cursor: pointer;
  border: none;
  border-radius: 10px;
  padding: 0.7rem 1.3rem;
  color: #fff;
  background: linear-gradient(90deg, var(--accent), var(--accent-2));
}
button:disabled {
  opacity: 0.5;
  cursor: default;
}
.input-info {
  font-family: var(--mono);
  font-size: 0.8rem;
  color: var(--muted);
  margin: 0.5rem 0 0;
  min-height: 1.2em;
}
.generator {
  margin-top: 1rem;
  padding-top: 1rem;
  border-top: 1px solid var(--line);
}
.gen-row {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.6rem 0.8rem;
}
#rsa-bits {
  flex: 1;
  min-width: 160px;
  accent-color: var(--accent);
}
.gen-bits {
  font-family: var(--mono);
  font-size: 0.85rem;
  color: var(--accent);
  min-width: 4.5em;
}
.gen-btn {
  background: transparent;
  color: var(--accent);
  border: 1px solid var(--accent);
}
.examples {
  margin-top: 0.9rem;
  font-size: 0.85rem;
  color: var(--muted);
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
  align-items: center;
}
.ex {
  background: transparent;
  color: var(--accent);
  border: 1px solid var(--line);
  padding: 0.25rem 0.6rem;
  font-size: 0.82rem;
  border-radius: 999px;
}
.meter {
  height: 12px;
  border-radius: 999px;
  background: var(--bg);
  overflow: hidden;
  border: 1px solid var(--line);
}
.bar {
  height: 100%;
  width: 0;
  border-radius: 999px;
  background: linear-gradient(90deg, var(--accent), var(--accent-2));
  transition: width 0.15s ease;
}
.meter.indeterminate .bar {
  width: 40% !important;
  animation: slide 1.1s ease-in-out infinite;
}
.meter:not(.busy) .bar {
  opacity: 0.35;
}
@keyframes slide {
  0% {
    margin-left: -40%;
  }
  100% {
    margin-left: 100%;
  }
}
.status {
  font-family: var(--mono);
  font-size: 0.9rem;
  color: var(--muted);
  margin: 0.7rem 0 0;
  min-height: 1.4em;
}
.result:empty {
  display: none;
}
.factors {
  font-family: var(--mono);
  font-size: clamp(1.1rem, 3.5vw, 1.6rem);
  font-weight: 600;
  line-height: 1.4;
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 0.2rem 0.5rem;
}
.factors .factor {
  display: inline-flex;
  flex-direction: column;
  align-items: flex-start;
}
.factors .value {
  word-break: break-all;
}
.factors .bits {
  font-size: 0.72rem;
  font-weight: 500;
  color: var(--muted);
}
.factors .sep {
  color: var(--muted);
  align-self: center;
}
.result .meta {
  color: var(--good);
  font-size: 0.85rem;
  margin-top: 0.5rem;
}
.result.bad .meta {
  color: var(--bad);
}
.plain {
  display: block;
  margin-top: 0.7rem;
  padding: 0.5rem 0.7rem;
  background: var(--bg);
  border: 1px solid var(--line);
  border-radius: 8px;
  color: var(--muted);
  font-size: 0.85rem;
  word-break: break-all;
  user-select: all;
}
footer {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem 1rem;
  color: var(--muted);
  font-size: 0.8rem;
  padding: 0 0.3rem;
}
.workers {
  font-family: var(--mono);
  color: var(--accent);
}
.note {
  flex: 1;
  min-width: 220px;
}