:root {
  --bg: #0b1020;
  --panel: #121735;
  --text: #e8ebff;
  --muted: #9aa3c7;
  --accent: #6ea8fe;
  --danger: #ff6b6b;
  --ok: #2ecc71;
  --warn: #f1c40f;
}

* { box-sizing: border-box; }
html, body { height: 100%; }
body {
  margin: 0;
  background: radial-gradient(1200px 600px at 10% 0%, #0f1635, #0b1020);
  color: var(--text);
  font: 16px/1.5 system-ui, -apple-system, Segoe UI, Roboto, Ubuntu, Cantarell, Noto Sans, Helvetica, Arial, "Apple Color Emoji", "Segoe UI Emoji";
}

.container {
  max-width: 880px;
  margin: 0 auto;
  padding: 20px;
}

header h1 { margin: 0 0 8px; }
#header-logo { height: 4rem; position: absolute; right: 20%; top: 8px; width: 4rem; }
.tagline { color: var(--muted); margin-top: 0; }
.lang-select { margin-top: 10px; display: inline-flex; align-items: center; gap: 8px; }
.lang-select select {
  padding: 6px 8px;
  border-radius: 8px;
  border: 1px solid rgba(255,255,255,0.12);
  background: #0b1233;
  color: var(--text);
}

.panel {
  background: var(--panel);
  border: 1px solid rgba(255,255,255,0.06);
  border-radius: 12px;
  padding: 16px;
  margin: 16px 0;
  box-shadow: 0 6px 24px rgba(0,0,0,0.25);
}

.input-row label { display: block; margin-bottom: 6px; color: var(--muted); }
.password-field { display: flex; gap: 8px; }
.password-field input {
  flex: 1;
  padding: 12px 12px;
  border-radius: 10px;
  border: 1px solid rgba(255,255,255,0.12);
  background: #0c1330;
  color: var(--text);
}
.password-field button {
  padding: 10px 12px;
  border-radius: 10px;
  border: 1px solid rgba(255,255,255,0.12);
  background: #0b1233;
  color: #ffffff; /* ensure contrast on dark button */
  cursor: pointer;
}
.password-field button:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}
.password-field button:hover { background: #0f1845; }
.policy-note { margin-top: 8px; color: var(--muted); font-size: 0.9rem; }

.meter { height: 10px; background: #0c1330; border-radius: 999px; overflow: hidden; border: 1px solid rgba(255,255,255,0.12); margin-top: 14px; }
.bar { height: 100%; width: 0%; background: var(--danger); transition: width .2s ease, background .2s ease; }

.score-row { margin-top: 8px; display: flex; justify-content: space-between; color: var(--muted); }

.checklist, .suggestions { margin: 0; padding-left: 18px; }
.checklist li { margin: 6px 0; }
.checklist li.ok { color: var(--ok); }
.checklist li.warn { color: var(--warn); }
.checklist li.bad { color: var(--danger); }

.guessability { margin: 0; padding-left: 18px; }
.guessability li { margin: 6px 0; }

.ideas-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 8px;
  margin-top: 8px;
}
.ideas-actions {
  display: flex;
  gap: 8px;
  margin-top: 8px;
}
.ideas-reset-button {
  padding: 10px 16px;
  border-radius: 10px;
  border: 1px solid rgba(255,255,255,0.12);
  background: #0b1233;
  color: #ffffff;
  cursor: pointer;
  font-size: 1rem;
}
.ideas-reset-button:hover { background: #0f1845; }
.ideas-reset-button:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }
.idea-button {
  padding: 10px 12px;
  background: var(--panel);
  border: 1px solid rgba(255,255,255,0.12);
  border-radius: 8px;
  color: var(--text);
  cursor: pointer;
  text-align: left;
  font-size: 0.85rem;
  transition: background 0.2s ease;
}
.idea-button:hover { 
  background: rgba(110, 168, 254, 0.1); 
  border-color: var(--accent); 
}
.idea-button:focus-visible { 
  outline: 2px solid var(--accent); 
  outline-offset: 2px; 
}

.footer { color: var(--muted); text-align: center; }

@media (prefers-color-scheme: light) {
  :root {
    --bg: #f4f7ff;
    --panel: #ffffff;
    --text: #0f1b3d;
    --muted: #5b6b9a;
  }
  body { background: linear-gradient(180deg, #eef3ff, #f7f9ff); }
  .password-field input { background: #ffffff; color: var(--text); border: 1px solid #d6dcf4; }
  .password-field button {
    background: #ffffff;
    color: #0f1b3d; /* dark text on light button */
    border: 1px solid #d6dcf4;
  }
  .password-field button:hover { background: #f3f6ff; }
  .lang-select select {
    background: #ffffff;
    color: var(--text);
    border: 1px solid #d6dcf4;
  }
}