:root {
  --bg: #0a0c10;
  --panel: #141820;
  --line: #2a3340;
  --text: #e8eef6;
  --muted: #8896a8;
  --accent: #ffb020;
  --ok: #3dd68c;
  --danger: #ff6b6b;
  --cyan: #5ec8ff;
}

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

body {
  min-height: 100vh;
  font-family: "IBM Plex Mono", monospace;
  color: var(--text);
  background:
    radial-gradient(ellipse 70% 45% at 50% -5%, rgba(255, 176, 32, 0.14), transparent),
    radial-gradient(ellipse 50% 35% at 100% 30%, rgba(94, 200, 255, 0.08), transparent),
    var(--bg);
  padding: 28px 20px 48px;
}

.back {
  display: inline-block;
  color: var(--muted);
  text-decoration: none;
  font-size: 13px;
  margin-bottom: 28px;
}

.back:hover {
  color: var(--accent);
}

.hero {
  max-width: 560px;
  margin: 0 auto 22px;
}

.eyebrow {
  color: var(--accent);
  font-size: 12px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  margin-bottom: 10px;
}

h1 {
  font-family: Syne, sans-serif;
  font-size: clamp(2rem, 5vw, 3rem);
  letter-spacing: -0.03em;
  margin-bottom: 10px;
}

.lead {
  color: var(--muted);
  font-size: 14px;
  line-height: 1.55;
}

.forge {
  max-width: 560px;
  margin: 0 auto;
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 16px;
  padding: 20px;
  box-shadow: 0 24px 50px rgba(0, 0, 0, 0.4);
  display: grid;
  gap: 18px;
}

.output-row {
  display: flex;
  gap: 10px;
  align-items: stretch;
}

#password {
  flex: 1;
  font-size: clamp(14px, 3.5vw, 18px);
  letter-spacing: 0.04em;
  word-break: break-all;
  background: #0c1016;
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: 14px 16px;
  color: var(--text);
}

.btn {
  font: inherit;
  font-size: 13px;
  font-weight: 600;
  border-radius: 10px;
  border: 1px solid var(--line);
  cursor: pointer;
  padding: 0 16px;
  transition: background 0.15s ease, border-color 0.15s ease, color 0.15s ease;
}

.btn.primary {
  background: var(--accent);
  border-color: var(--accent);
  color: #1a1200;
}

.btn.primary:hover {
  filter: brightness(1.08);
}

.btn.ghost {
  background: #0c1016;
  color: var(--text);
}

.btn.ghost:hover {
  border-color: #4a5565;
  color: var(--cyan);
}

.strength {
  display: grid;
  gap: 8px;
}

.strength__bar {
  height: 8px;
  background: #1a222d;
  border-radius: 999px;
  overflow: hidden;
}

.strength__bar i {
  display: block;
  height: 100%;
  width: 70%;
  border-radius: inherit;
  background: var(--ok);
  transition: width 0.25s ease, background 0.25s ease;
}

#strength-label {
  font-size: 12px;
  color: var(--muted);
}

.field {
  display: grid;
  gap: 10px;
}

.field__top {
  display: flex;
  justify-content: space-between;
  font-size: 13px;
  color: var(--muted);
}

.field__top strong {
  color: var(--text);
}

input[type="range"] {
  width: 100%;
  accent-color: var(--accent);
}

.options {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px;
}

.check {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  color: var(--muted);
  background: #0c1016;
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: 10px 12px;
  cursor: pointer;
}

.check input {
  accent-color: var(--accent);
}

.actions {
  display: grid;
  grid-template-columns: 1.4fr 1fr;
  gap: 10px;
}

.actions .btn {
  height: 44px;
}

.note {
  text-align: center;
  font-size: 12px;
  color: var(--ok);
}

.note[hidden] {
  display: none;
}

.hint {
  max-width: 560px;
  margin: 14px auto 0;
  color: var(--muted);
  font-size: 12px;
  line-height: 1.5;
}

@media (max-width: 480px) {
  .output-row {
    flex-direction: column;
  }

  .output-row .btn {
    height: 42px;
  }
}