@import url("https://fonts.googleapis.com/css2?family=JetBrains+Mono:wght@400;500;700&family=Inter:wght@400;500&display=swap");

:root {
  --bg: #0d0f0e;
  --surface: #141714;
  --surface2: #1a1e1b;
  --border: #2a2e2b;
  --green: #4ade80;
  --green-dim: #1f4a2e;
  --green-mid: #22c55e;
  --amber: #fbbf24;
  --red: #f87171;
  --text: #e2e8e3;
  --muted: #6b7a6e;
  --font-mono: "JetBrains Mono", monospace;
  --font-ui: "Inter", sans-serif;
}

* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

body {
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-ui);
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: 3rem 1rem 4rem;
}

header {
  text-align: center;
  margin-bottom: 2.5rem;
}

.logo {
  font-family: var(--font-mono);
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--green);
  letter-spacing: 0.15em;
  text-transform: uppercase;
  margin-bottom: 0.4rem;
}

.logo span {
  color: var(--muted);
}

header p {
  font-size: 0.8rem;
  color: var(--muted);
  letter-spacing: 0.05em;
}

.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 1.5rem;
  width: 100%;
  max-width: 560px;
  margin-bottom: 1rem;
}

.output-wrap {
  position: relative;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 1.1rem 1.25rem;
  margin-bottom: 1rem;
  min-height: 64px;
  display: flex;
  align-items: center;
}

#password-display {
  font-family: var(--font-mono);
  font-size: 1.15rem;
  font-weight: 500;
  color: var(--green);
  letter-spacing: 0.08em;
  word-break: break-all;
  flex: 1;
  line-height: 1.5;
}

#password-display.empty {
  color: var(--muted);
  font-size: 0.85rem;
  letter-spacing: 0.02em;
}

.copy-btn {
  background: transparent;
  border: 1px solid var(--border);
  color: var(--muted);
  border-radius: 5px;
  padding: 6px 10px;
  cursor: pointer;
  font-size: 0.75rem;
  font-family: var(--font-mono);
  letter-spacing: 0.05em;
  margin-left: 12px;
  flex-shrink: 0;
  transition: all 0.15s;
}

.copy-btn:hover {
  border-color: var(--green);
  color: var(--green);
}
.copy-btn.copied {
  border-color: var(--green);
  color: var(--green);
}

.entropy-section {
  margin-bottom: 1.2rem;
}

.entropy-header {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  margin-bottom: 6px;
}

.entropy-label {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  color: var(--muted);
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

#entropy-value {
  font-family: var(--font-mono);
  font-size: 0.85rem;
  font-weight: 700;
  color: var(--green);
}

.entropy-bar-bg {
  height: 6px;
  background: var(--surface2);
  border-radius: 3px;
  overflow: hidden;
  margin-bottom: 5px;
}

#entropy-bar {
  height: 100%;
  border-radius: 3px;
  transition:
    width 0.4s cubic-bezier(0.22, 0.68, 0, 1.2),
    background 0.3s;
  width: 0%;
  background: var(--green);
}

#strength-label {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.08em;
}

#common-warning {
  display: none;
  background: #2a1a1a;
  border: 1px solid #5a2020;
  border-radius: 5px;
  padding: 0.6rem 0.9rem;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--red);
  margin-bottom: 1rem;
  letter-spacing: 0.04em;
}

#common-warning::before {
  content: "⚠ ";
}

.section-label {
  font-family: var(--font-mono);
  font-size: 0.65rem;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--muted);
  margin-bottom: 0.9rem;
}

.length-row {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 1.2rem;
}

.length-row label {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: var(--muted);
  white-space: nowrap;
}

input[type="range"] {
  flex: 1;
  appearance: none;
  height: 4px;
  background: var(--surface2);
  border-radius: 2px;
  outline: none;
  cursor: pointer;
  accent-color: var(--green);
}

input[type="range"]::-webkit-slider-thumb {
  appearance: none;
  width: 16px;
  height: 16px;
  border-radius: 50%;
  background: var(--green);
  cursor: pointer;
  border: 2px solid var(--bg);
  box-shadow: 0 0 0 1px var(--green);
}

#length-val {
  font-family: var(--font-mono);
  font-size: 0.9rem;
  font-weight: 700;
  color: var(--green);
  min-width: 28px;
  text-align: right;
}

.toggles {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 8px;
  margin-bottom: 1.25rem;
}

.toggle-item {
  display: flex;
  align-items: center;
  gap: 8px;
  background: var(--surface2);
  border: 1px solid var(--border);
  border-radius: 5px;
  padding: 9px 12px;
  cursor: pointer;
  transition: border-color 0.12s;
}

.toggle-item:hover {
  border-color: var(--green-dim);
}
.toggle-item.active {
  border-color: var(--green);
  background: var(--green-dim);
}

.toggle-item input {
  display: none;
}

.toggle-dot {
  width: 12px;
  height: 12px;
  border: 1.5px solid var(--muted);
  border-radius: 3px;
  flex-shrink: 0;
  transition: all 0.12s;
}

.toggle-item.active .toggle-dot {
  background: var(--green);
  border-color: var(--green);
}

.toggle-text {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--muted);
  line-height: 1.3;
}

.toggle-item.active .toggle-text {
  color: var(--green);
}

.toggle-chars {
  font-size: 0.65rem;
  color: var(--muted);
  display: block;
  margin-top: 1px;
  opacity: 0.7;
}

.gen-btn {
  width: 100%;
  background: var(--green);
  color: var(--bg);
  border: none;
  border-radius: 6px;
  padding: 0.85rem;
  font-family: var(--font-mono);
  font-size: 0.9rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  cursor: pointer;
  transition:
    opacity 0.15s,
    transform 0.1s;
}

.gen-btn:hover {
  opacity: 0.88;
}
.gen-btn:active {
  transform: scale(0.98);
}

.check-card {
  max-width: 560px;
  width: 100%;
}

.check-input-row {
  display: flex;
  gap: 8px;
  margin-bottom: 1rem;
}

#check-input {
  flex: 1;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 5px;
  color: var(--text);
  font-family: var(--font-mono);
  font-size: 0.85rem;
  padding: 9px 12px;
  outline: none;
  transition: border-color 0.15s;
}

#check-input:focus {
  border-color: var(--green);
}

.check-btn {
  background: transparent;
  border: 1px solid var(--border);
  color: var(--muted);
  border-radius: 5px;
  padding: 9px 16px;
  font-family: var(--font-mono);
  font-size: 0.78rem;
  cursor: pointer;
  transition: all 0.15s;
  white-space: nowrap;
}

.check-btn:hover {
  border-color: var(--green);
  color: var(--green);
}

#check-result {
  display: none;
}

.check-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 8px;
}

.check-item {
  background: var(--surface2);
  border: 1px solid var(--border);
  border-radius: 5px;
  padding: 10px 12px;
}

.check-item-label {
  font-family: var(--font-mono);
  font-size: 0.62rem;
  color: var(--muted);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin-bottom: 4px;
}

.check-item-val {
  font-family: var(--font-mono);
  font-size: 0.82rem;
  font-weight: 500;
}

.ok {
  color: var(--green);
}
.warn {
  color: var(--amber);
}
.bad {
  color: var(--red);
}

footer {
  margin-top: 2.5rem;
  text-align: center;
  font-family: var(--font-mono);
  font-size: 0.65rem;
  color: var(--muted);
  letter-spacing: 0.08em;
}