:root {
  color-scheme: dark;
  --bg: #1a1a17;
  --bg-deep: #11110f;
  --surface: #20201c;
  --surface-soft: #272720;
  --text: #f5f1e8;
  --muted: #bbb4a7;
  --border: #575043;
  --border-strong: #817662;
  --accent: #f59e0b;
  --accent-hover: #fbbf24;
  --accent-ink: #1a1a17;
  --success: #10b981;
  --success-soft: #a7f3d0;
  --danger: #dc2626;
  --fair: #d97706;
  --shadow: #0c0c0a;
  --max: 1240px;
}

:root[data-theme="light"] {
  color-scheme: light;
  --bg: #f5f1e8;
  --bg-deep: #e8e1d4;
  --surface: #fffdf8;
  --surface-soft: #eee7da;
  --text: #1a1a17;
  --muted: #625d54;
  --border: #b9ae9c;
  --border-strong: #807565;
  --accent: #b86400;
  --accent-hover: #8f4c00;
  --accent-ink: #fffdf8;
  --success: #087f5b;
  --success-soft: #065f46;
  --danger: #b91c1c;
  --fair: #a34e00;
  --shadow: #c9c0b2;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 88px; }
body { margin: 0; background: var(--bg); color: var(--text); font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif; line-height: 1.6; }
button, input, select { font: inherit; }
a { color: inherit; text-underline-offset: .25em; }
svg { width: 1.25em; height: 1.25em; fill: none; stroke: currentColor; stroke-width: 1.8; stroke-linecap: round; stroke-linejoin: round; }
button, a, input, select, summary { outline: 0; }
:focus-visible { outline: 3px solid var(--accent); outline-offset: 4px; }
.skip-link { position: fixed; z-index: 99; left: 1rem; top: -5rem; background: var(--accent); color: var(--accent-ink); padding: .65rem 1rem; font-weight: 800; border-radius: .35rem; }
.skip-link:focus { top: 1rem; }
.site-header { min-height: 76px; border-bottom: 1px solid var(--border); display: flex; align-items: center; gap: 2rem; padding: .8rem max(1.25rem, calc((100vw - var(--max)) / 2)); position: relative; z-index: 10; }
.brand { display: inline-flex; align-items: center; gap: .7rem; font-weight: 800; font-size: 1.35rem; text-decoration: none; white-space: nowrap; }
.brand img { border-radius: 8px; }
.site-header nav { margin-left: auto; display: flex; align-items: stretch; gap: 2rem; }
.site-header nav a { text-decoration: none; padding: .7rem 0; color: var(--muted); font-weight: 650; border-bottom: 2px solid transparent; }
.site-header nav a:hover, .site-header nav a.active { color: var(--text); border-bottom-color: var(--accent); }
.icon-button { display: grid; place-items: center; min-width: 42px; min-height: 42px; border-radius: 9px; border: 1px solid var(--accent); color: var(--accent); background: transparent; cursor: pointer; }
.icon-button:hover { background: var(--surface-soft); }
.hero { max-width: var(--max); margin: 0 auto; padding: clamp(3.5rem, 6vw, 5rem) 1.25rem 4.25rem; }
.hero-copy { text-align: center; max-width: 1100px; margin: 0 auto 2.35rem; }
h1, h2, h3, p { margin-top: 0; }
h1 { font-size: clamp(2.35rem, 4.3vw, 4rem); line-height: 1.06; letter-spacing: -.045em; margin-bottom: 1.2rem; }
.hero-copy p { color: var(--muted); font-size: clamp(1rem, 2vw, 1.24rem); }
.generator-card { background: var(--surface); border: 1px solid var(--border-strong); border-radius: 14px; box-shadow: 0 22px 60px var(--shadow); overflow: hidden; }
.tabs { display: flex; border-bottom: 1px solid var(--border); padding: 0 1rem; }
.tab { min-height: 54px; min-width: 150px; border: 0; border-bottom: 2px solid transparent; background: transparent; color: var(--muted); cursor: pointer; font-weight: 750; }
.tab:hover { color: var(--text); }
.tab.active { color: var(--accent); border-bottom-color: var(--accent); }
[role="tabpanel"] { padding: 1rem; }
.output-row { display: flex; align-items: stretch; gap: 1rem; border: 1px solid var(--accent); border-radius: 10px; padding: .8rem; background: var(--bg-deep); box-shadow: none; transition: box-shadow .58s ease-out; }
.output-row.flash { box-shadow: 0 0 0 1px var(--accent), 0 0 26px rgba(245, 158, 11, .48); }
.password-output { flex: 1; min-width: 0; min-height: 64px; display: flex; align-items: center; padding: .3rem .7rem; color: var(--text); font-family: ui-monospace, "JetBrains Mono", "Cascadia Code", monospace; font-size: clamp(1.25rem, 3.2vw, 2rem); line-height: 1.25; letter-spacing: .035em; overflow-wrap: anywhere; word-break: break-word; }
.output-actions { display: flex; align-items: stretch; gap: .7rem; }
.button { display: inline-flex; justify-content: center; align-items: center; gap: .55rem; min-height: 48px; padding: .7rem 1rem; border-radius: 8px; border: 1px solid var(--accent); cursor: pointer; font-weight: 780; }
.button.primary { background: var(--accent); color: var(--accent-ink); }
.button.primary:hover { background: var(--accent-hover); border-color: var(--accent-hover); }
.button.secondary { background: transparent; color: var(--text); }
.button.secondary:hover { background: var(--surface-soft); }
.controls-grid { display: grid; grid-template-columns: minmax(250px, .9fr) 1.1fr; gap: clamp(2rem, 6vw, 5rem); padding: 2rem 1rem 1.25rem; }
.control-heading { display: flex; justify-content: space-between; align-items: center; margin-bottom: .85rem; font-weight: 750; }
.control-heading output { font-family: ui-monospace, monospace; color: var(--accent); border: 1px solid var(--accent); min-width: 2.6rem; text-align: center; border-radius: 6px; padding: .12rem .4rem; }
input[type="range"] { width: 100%; accent-color: var(--accent); cursor: pointer; }
.range-labels { display: flex; justify-content: space-between; color: var(--muted); font-family: ui-monospace, monospace; font-size: .82rem; }
.switches { border: 0; padding: 0; margin: 0; display: grid; grid-template-columns: repeat(2, minmax(170px, 1fr)); gap: .95rem 1.5rem; }
.switches legend { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); }
.switch-row { display: flex; align-items: center; justify-content: space-between; gap: .8rem; cursor: pointer; font-weight: 650; }
.switch-row.wide { grid-column: 1 / -1; }
.switch-row input { position: absolute; opacity: 0; pointer-events: none; }
.switch { flex: 0 0 auto; width: 44px; height: 24px; border: 1px solid var(--border-strong); background: var(--bg-deep); border-radius: 99px; padding: 2px; transition: background .18s ease; }
.switch::after { content: ""; display: block; width: 18px; height: 18px; background: var(--muted); border-radius: 50%; transition: transform .18s ease; }
.switch-row input:checked + .switch { background: var(--success); border-color: var(--success); }
.switch-row input:checked + .switch::after { background: var(--text); transform: translateX(19px); }
.switch-row input:focus-visible + .switch { outline: 3px solid var(--accent); outline-offset: 3px; }
.switch-row input:disabled + .switch { opacity: .72; }
.hint { grid-column: 1 / -1; color: var(--muted); font-size: .82rem; margin: -.25rem 0 0; }
.passphrase-controls { display: grid; grid-template-columns: 1fr 260px; gap: 3rem; padding: 2rem 1rem 1.25rem; align-items: end; }
.select-label { display: grid; gap: .5rem; font-weight: 750; }
select { min-height: 45px; color: var(--text); background: var(--bg-deep); border: 1px solid var(--border-strong); border-radius: 7px; padding: .45rem .7rem; }
.strength-row { border-top: 1px solid var(--border); display: grid; grid-template-columns: 1fr auto; gap: 2rem; padding: 1.4rem 2rem; }
.strength-label { display: block; color: var(--muted); font-size: .82rem; text-transform: uppercase; letter-spacing: .09em; font-weight: 800; margin-bottom: .55rem; }
.meter { width: min(100%, 480px); display: grid; grid-template-columns: repeat(4, 1fr); gap: 4px; margin-bottom: .45rem; }
.meter span { height: 10px; background: var(--surface-soft); border: 1px solid var(--border); }
.meter[data-level="weak"] span:nth-child(-n+1) { background: var(--danger); border-color: var(--danger); }
.meter[data-level="fair"] span:nth-child(-n+2) { background: var(--fair); border-color: var(--fair); }
.meter[data-level="strong"] span:nth-child(-n+3), .meter[data-level="very-strong"] span { background: var(--success); border-color: var(--success); }
#strength-text, .entropy { color: var(--success); }
.entropy { font-family: ui-monospace, monospace; font-size: 1.35rem; }
.trust-banner { margin: 0; padding: 1rem 2rem; border-top: 1px solid var(--border); color: var(--success-soft); display: flex; align-items: center; gap: .75rem; font-weight: 680; }
.trust-banner svg { flex: 0 0 auto; }
.error-message, .noscript { border: 1px solid var(--danger); color: var(--text); background: rgba(220, 38, 38, .12); padding: 1rem; margin: 1rem; border-radius: 8px; }
.content-section { max-width: var(--max); margin: 0 auto; padding: clamp(4rem, 8vw, 7rem) 1.25rem; border-top: 1px solid var(--border); }
h2 { font-size: clamp(2rem, 4vw, 3.3rem); line-height: 1.12; letter-spacing: -.035em; margin-bottom: 2.6rem; }
h3 { font-size: 1.08rem; line-height: 1.3; }
.step-list { list-style: none; padding: 0; margin: 0; display: grid; grid-template-columns: repeat(3, 1fr); gap: 3rem; counter-reset: steps; }
.step-list li { text-align: center; position: relative; }
.step-list li:not(:last-child)::after { content: ""; position: absolute; top: 25px; left: 65%; width: 70%; height: 1px; background: var(--border-strong); }
.step-list span { display: grid; place-items: center; width: 52px; height: 52px; margin: 0 auto 1.3rem; border: 1px solid var(--accent); border-radius: 8px; color: var(--accent); font-family: ui-monospace, monospace; font-size: 1.45rem; font-weight: 800; }
.step-list p, .tips > div p, .affiliate-intro p { color: var(--muted); }
.tips { display: grid; grid-template-columns: .65fr 1.35fr; gap: 5rem; }
.tip-list { list-style: none; margin: 0; padding: 0; }
.tip-list li { display: grid; grid-template-columns: 64px 1fr; gap: 1rem; padding: 1.25rem 0; border-bottom: 1px solid var(--border); }
.tip-list li:first-child { padding-top: 0; }
.tip-list span { color: var(--accent); font-family: ui-monospace, monospace; font-weight: 800; font-size: 1.2rem; }
.tip-list h3 { margin-bottom: .25rem; }
.tip-list p { color: var(--muted); margin-bottom: 0; }
.affiliate { display: grid; grid-template-columns: .62fr 1.38fr; gap: 3.5rem; }
.affiliate h2 { font-size: clamp(2rem, 3.6vw, 3rem); margin-bottom: 1rem; }
.affiliate-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1rem; }
.affiliate-grid article { border: 1px solid var(--border-strong); border-radius: 10px; padding: 1.4rem; display: flex; flex-direction: column; min-height: 220px; }
.affiliate-grid h3 { font-size: 1.3rem; }
.affiliate-grid p { color: var(--muted); }
.affiliate-grid a { margin-top: auto; color: var(--accent); font-weight: 800; text-decoration: none; display: flex; justify-content: space-between; gap: 1rem; }
.affiliate-grid a:hover { color: var(--accent-hover); }
.disclosure { grid-column: 1 / -1; margin: 0; padding-top: 1rem; border-top: 1px solid var(--border); color: var(--muted); font-size: .88rem; }
.faq h2 { font-family: ui-monospace, monospace; }
.faq-list { counter-reset: faq; }
.faq-list details { border-bottom: 1px solid var(--border); padding: 1.25rem 0; counter-increment: faq; }
.faq-list summary { list-style: none; cursor: pointer; font-family: ui-monospace, monospace; font-weight: 800; font-size: clamp(1rem, 2vw, 1.25rem); display: grid; grid-template-columns: 2.8rem 1fr auto; align-items: center; gap: .7rem; }
.faq-list summary::-webkit-details-marker { display: none; }
.faq-list summary::before { content: counter(faq) "."; color: var(--accent); }
.faq-list summary::after { content: "+"; color: var(--text); font-size: 1.5rem; font-weight: 400; }
.faq-list details[open] summary::after { content: "−"; color: var(--accent); }
.faq-list details p { margin: 1rem 3.5rem 0; border-left: 3px solid var(--accent); padding-left: 1.2rem; color: var(--muted); max-width: 920px; }
.site-footer { border-top: 1px solid var(--border); max-width: var(--max); margin: 0 auto; padding: 3.5rem 1.25rem 2rem; }
.footer-top { display: flex; justify-content: space-between; gap: 3rem; align-items: center; }
.footer-top p { color: var(--muted); margin: .5rem 0 0; font-family: ui-monospace, monospace; }
.footer-top nav { display: flex; flex-wrap: wrap; justify-content: flex-end; gap: 1.7rem; }
.footer-top nav a { color: var(--muted); text-decoration-color: var(--accent); }
.footer-top nav a:hover { color: var(--text); }
.disclaimer { border-block: 1px solid var(--border); padding: 1.4rem 0; margin: 2rem 0 1.5rem; color: var(--muted); font-size: .88rem; }
.copyright { margin: 0; color: var(--muted); font-family: ui-monospace, monospace; font-size: .88rem; }
.page-shell { max-width: 800px; margin: 0 auto; padding: clamp(4rem, 10vw, 8rem) 1.25rem; min-height: 65vh; }
.page-shell h1 { margin-bottom: 1rem; }
.page-shell .lede { color: var(--muted); font-size: 1.2rem; margin-bottom: 3rem; }
.page-shell h2 { font-size: 1.55rem; margin: 2.5rem 0 .75rem; letter-spacing: -.02em; }
.page-shell code { font-family: ui-monospace, monospace; color: var(--accent); }
.page-shell .home-link { display: inline-flex; margin-top: 1rem; }
.error-code { color: var(--accent); font-family: ui-monospace, monospace; font-size: 1rem; letter-spacing: .18em; text-transform: uppercase; font-weight: 800; }

@media (max-width: 900px) {
  .site-header nav { gap: 1rem; }
  .site-header nav a:nth-child(2), .site-header nav a:nth-child(3), .site-header nav a:nth-child(4) { display: none; }
  .output-row { flex-direction: column; }
  .password-output { min-height: 76px; }
  .controls-grid, .tips, .affiliate { grid-template-columns: 1fr; gap: 2rem; }
  .affiliate-grid { grid-template-columns: repeat(3, 1fr); }
}

@media (max-width: 680px) {
  .site-header { gap: .65rem; }
  .site-header nav { display: none; }
  .icon-button { margin-left: auto; }
  .hero { padding-top: 3rem; }
  .hero-copy br { display: none; }
  .tabs { padding: 0; }
  .tab { flex: 1; min-width: 0; }
  [role="tabpanel"] { padding: .65rem; }
  .output-actions { display: grid; grid-template-columns: 1fr 1fr; }
  .controls-grid { padding: 1.5rem .35rem .75rem; gap: 1.6rem; }
  .switches { grid-template-columns: 1fr; }
  .switch-row.wide { grid-column: auto; }
  .hint { grid-column: auto; }
  .passphrase-controls { grid-template-columns: 1fr; gap: 1.5rem; padding: 1.5rem .35rem; }
  .strength-row { grid-template-columns: 1fr; padding: 1.25rem; }
  .trust-banner { padding: 1rem 1.25rem; align-items: flex-start; }
  .step-list { grid-template-columns: 1fr; gap: 2.5rem; }
  .step-list li:not(:last-child)::after { display: none; }
  .affiliate-grid { grid-template-columns: 1fr; }
  .affiliate-grid article { min-height: 180px; }
  .faq-list details p { margin-left: 0; }
  .footer-top { align-items: flex-start; flex-direction: column; }
  .footer-top nav { justify-content: flex-start; gap: 1rem 1.4rem; }
}

@media (max-width: 380px) {
  .hero, .content-section, .site-footer { padding-left: .8rem; padding-right: .8rem; }
  .output-actions { grid-template-columns: 1fr; }
  .button { width: 100%; }
  .password-output { font-size: 1.1rem; padding-inline: .25rem; }
  .brand { font-size: 1.18rem; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation-duration: .01ms !important; animation-iteration-count: 1 !important; transition-duration: .01ms !important; }
}