/* Password generator PWD-06. Instrument Sheet chassis, accent #B98A2E (brass). */
:root{
  --paper:#EDE9E2;
  --ink:#1E1D1B;
  --panel:#DEDACF;
  --line:#B7B0A2;
  --chassis:#2A2924;
  --accent:#B98A2E;
  --on-accent:#1E1D1B;          /* paper on brass is 2.5:1, ink on brass is 5.3:1, so type on the accent is ink */
  --on-accent-fill:#EDE9E2;     /* the inverted primary button inside the brass */
  --font-ui:"Familjen Grotesk",system-ui,sans-serif;
  --font-spec:"Martian Mono",ui-monospace,monospace;
  --ease:cubic-bezier(.2,.8,.2,1);
}
@media (prefers-color-scheme:dark){
  :root{--paper:#1E1D1B;--ink:#EDE9E2;--panel:#2A2924;--line:#4A473F;--chassis:#111}
}

*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{margin:0;background:var(--paper);color:var(--ink);font-family:var(--font-ui);font-size:1rem;line-height:1.55;overflow-x:hidden}
a{color:inherit}
:focus-visible{outline:2px solid var(--accent);outline-offset:2px}
button{font:inherit;color:inherit}
h1,h2,h3,p,dl,dd,ol,ul,figure,pre,fieldset{margin:0}
fieldset{padding:0;border:0;min-width:0}
legend{padding:0}
[hidden]{display:none!important}
code{font-family:var(--font-spec);font-size:.8em}

/* label strip */
.strip{max-width:1120px;margin:0 auto;padding:18px 32px 0;display:flex;justify-content:space-between;align-items:baseline;font-family:var(--font-spec);font-size:.75rem;font-weight:500;letter-spacing:.02em;border-bottom:1px solid var(--line)}
.strip-maker{text-decoration:none;padding-bottom:12px}
.strip-maker:hover{text-decoration:underline;text-underline-offset:3px}
.strip-code{padding-bottom:12px}

/* page */
.wrap{max-width:1120px;margin:0 auto;padding:40px 32px 0}
.title{font-size:4.5rem;font-weight:600;line-height:1;letter-spacing:-.01em;margin-bottom:16px}
.lede{font-size:1.125rem;max-width:56ch;margin-bottom:28px}
.subhead{font-size:1.375rem;font-weight:500;line-height:1.25;margin-bottom:10px}
.section-head{font-size:2rem;font-weight:600;line-height:1.1;margin:40px 0 14px}

/* the brass slab: the one accent shape, and the hero */
.hero{position:relative;background:var(--accent);color:var(--on-accent);padding:36px 40px 32px}
.hero::before,.hero::after,.hero>.ticks::before,.hero>.ticks::after{content:"";position:absolute;width:14px;height:14px;border:0 solid var(--paper);pointer-events:none;z-index:2}
.hero::before{top:0;left:0;border-top-width:1px;border-left-width:1px}
.hero::after{top:0;right:0;border-top-width:1px;border-right-width:1px}
.hero>.ticks::before{bottom:0;left:0;border-bottom-width:1px;border-left-width:1px}
.hero>.ticks::after{bottom:0;right:0;border-bottom-width:1px;border-right-width:1px}
.hero-grid{display:grid;grid-template-columns:minmax(0,1fr) auto;gap:24px 40px;align-items:end}
.hero-main{min-width:0}

/* the password, enormous, machine output so the spec face is allowed */
.pw{display:block;font-family:var(--font-spec);font-weight:500;font-size:3rem;line-height:1.15;letter-spacing:.02em;word-break:break-all;overflow-wrap:anywhere;min-height:1.15em;margin-bottom:26px;-webkit-user-select:all;user-select:all}
.pw .w{white-space:nowrap;word-break:normal}
.pw .ch{display:inline-block;min-width:.55em;text-align:center}
.pw .ch.is-spin{opacity:.55}
.pw .ch.is-set{animation:land .18s var(--ease)}
@keyframes land{from{transform:translateY(-.18em);opacity:.4}to{transform:none;opacity:1}}
.pw .sep{opacity:.6}

/* meter: eight blocks of sixteen bits, click in one by one */
.meter-row{display:flex;flex-wrap:wrap;align-items:baseline;gap:6px 18px;margin-bottom:8px}
.meter{display:inline-flex;gap:4px;align-self:center}
.seg{width:26px;height:22px;border:1px solid var(--on-accent);background:transparent;transition:background .12s}
.seg.is-on{background:var(--on-accent)}
.bits{font-size:1.375rem;font-weight:500;line-height:1}
.bits-num{font-size:2.75rem;font-weight:600;letter-spacing:-.02em;font-variant-numeric:tabular-nums}
.grade{font-size:1.375rem;font-weight:500;line-height:1}
.crack{max-width:60ch;font-size:1.0625rem;margin-bottom:26px}

/* buttons */
.actions{display:flex;flex-wrap:wrap;align-items:center;gap:10px}
.btn{position:relative;display:inline-block;padding:12px 18px;border:1px solid var(--ink);background:var(--paper);color:var(--ink);font-weight:500;line-height:1.2;cursor:pointer;border-radius:0;text-decoration:none}
.btn:hover{background:var(--panel)}
.btn:disabled{opacity:.45;cursor:default}
/* inside the brass everything inverts: the primary is ink-filled, the secondary is ink-outlined */
.btn-primary{background:var(--on-accent);border-color:var(--on-accent);color:var(--on-accent-fill)}
.btn-primary:hover{background:var(--on-accent)}
.btn-primary .ticks{position:absolute;inset:0;pointer-events:none}
.btn-primary::before,.btn-primary::after,.btn-primary .ticks::before,.btn-primary .ticks::after{content:"";position:absolute;width:14px;height:14px;border:0 solid var(--on-accent);opacity:0;pointer-events:none}
.btn-primary::before{top:-6px;left:-6px;border-top-width:1px;border-left-width:1px}
.btn-primary::after{top:-6px;right:-6px;border-top-width:1px;border-right-width:1px}
.btn-primary .ticks::before{bottom:-6px;left:-6px;border-bottom-width:1px;border-left-width:1px}
.btn-primary .ticks::after{bottom:-6px;right:-6px;border-bottom-width:1px;border-right-width:1px}
.btn-primary:hover::before,.btn-primary:hover::after,.btn-primary:hover .ticks::before,.btn-primary:hover .ticks::after,
.btn-primary:focus-visible::before,.btn-primary:focus-visible::after,.btn-primary:focus-visible .ticks::before,.btn-primary:focus-visible .ticks::after{opacity:1}
.btn-primary:focus-visible{outline-color:var(--on-accent);outline-offset:4px}
.btn-inv{background:transparent;border-color:var(--on-accent);color:var(--on-accent)}
.btn-inv:hover{background:rgba(30,29,27,.08)}
.btn-inv:focus-visible{outline-color:var(--on-accent)}
.btn-inv.is-done{background:var(--on-accent);color:var(--on-accent-fill)}
.hint{font-size:.9375rem;opacity:.7;margin-left:6px}

/* the padlock, drawn in type */
.lock{font-family:var(--font-spec);font-size:1.625rem;line-height:1.1;letter-spacing:0;font-weight:500;color:var(--on-accent);margin:0 0 -6px;user-select:none;transition:transform .15s var(--ease)}
.lock.is-open{transform:translateY(-4px)}
.lock.is-click{animation:click .2s var(--ease)}
@keyframes click{0%{transform:translateY(-4px)}60%{transform:translateY(2px)}100%{transform:none}}

/* reading line */
.reading{font-family:var(--font-spec);font-size:.75rem;font-weight:500;letter-spacing:.02em;white-space:pre;margin:12px 0 0}

/* controls panel */
.panel{position:relative;border:1px solid var(--line);background:var(--panel);padding:24px 32px 28px}
.controls{margin-top:24px}
.mode{display:inline-flex;border:1px solid var(--ink);margin-bottom:24px}
.tab{padding:10px 18px;border:0;background:var(--paper);color:var(--ink);font-weight:500;cursor:pointer;border-radius:0}
.tab+.tab{border-left:1px solid var(--ink)}
.tab.is-on{background:var(--ink);color:var(--paper)}
.tab:focus-visible{outline-offset:-3px}
.opts{display:grid;grid-template-columns:repeat(12,minmax(0,1fr));gap:24px 32px}
.field{grid-column:span 4;min-width:0}
.field-range{grid-column:span 4}
.field>label,.field legend{display:block;font-weight:500;margin-bottom:10px}
.val{font-weight:600;font-size:1.375rem;color:var(--ink);margin-left:6px;font-variant-numeric:tabular-nums}
input[type=range]{-webkit-appearance:none;appearance:none;width:100%;height:28px;background:transparent;margin:0;cursor:pointer}
input[type=range]:focus{outline:none}
input[type=range]::-webkit-slider-runnable-track{height:2px;background:var(--ink)}
input[type=range]::-moz-range-track{height:2px;background:var(--ink)}
input[type=range]::-webkit-slider-thumb{-webkit-appearance:none;appearance:none;width:22px;height:22px;margin-top:-10px;border:1px solid var(--ink);border-radius:0;background:var(--accent)}
input[type=range]::-moz-range-thumb{width:20px;height:20px;border:1px solid var(--ink);border-radius:0;background:var(--accent)}
input[type=range]:focus-visible::-webkit-slider-thumb{outline:2px solid var(--accent);outline-offset:2px}
input[type=range]:focus-visible::-moz-range-thumb{outline:2px solid var(--accent);outline-offset:2px}
.range-ends{display:flex;justify-content:space-between;font-family:var(--font-spec);font-size:.75rem;font-weight:500;margin-top:2px}
.checks,.seps{display:flex;flex-direction:column;gap:6px}
.field .check{display:flex;align-items:center;gap:10px;margin:0;font-weight:400;cursor:pointer;line-height:1.3}
.check input{width:18px;height:18px;margin:0;flex:0 0 auto;accent-color:var(--accent);cursor:pointer}
.check input:focus-visible{outline:2px solid var(--accent);outline-offset:2px}

/* history */
.history{margin-top:40px;max-width:760px}
.history-note{font-size:.9375rem;margin-bottom:12px}
.history-list{list-style:none;padding:0;border-top:1px solid var(--line)}
.history-list li{display:grid;grid-template-columns:minmax(0,1fr) auto auto;gap:16px;align-items:center;padding:8px 0;border-bottom:1px solid var(--line)}
.history-list .h-val{font-family:var(--font-spec);font-size:.8125rem;font-weight:500;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.history-list .h-bits{font-family:var(--font-spec);font-size:.75rem;font-weight:500;white-space:nowrap}
.history-list .btn{padding:6px 10px;font-size:.9375rem}
.history-empty{font-size:.9375rem;padding:10px 0;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.history-list:empty{display:none}

/* notes */
.notes{display:grid;grid-template-columns:repeat(12,minmax(0,1fr))}
.notes>*{grid-column:span 8}
.notes p{max-width:68ch;margin-bottom:14px}

.foot{max-width:1120px;margin:0 auto;padding:20px 32px 40px;font-size:.875rem;opacity:.8}
.foot p{max-width:70ch}

/* phones and narrow screens */
@media (max-width:900px){
  .notes>*{grid-column:span 12}
  .field,.field-range{grid-column:span 6}
  .pw{font-size:2.25rem}
}
@media (max-width:640px){
  .strip{padding:14px 16px 0}
  .wrap{padding:28px 16px 0}
  .title{font-size:2.75rem}
  .lede{font-size:1rem}
  .hero{padding:22px 18px 22px}
  .hero-grid{grid-template-columns:1fr}
  .lock{display:none}
  .pw{font-size:1.5rem;letter-spacing:.01em;margin-bottom:18px}
  .pw .ch{min-width:.6em}
  .seg{width:20px;height:18px}
  .bits-num{font-size:2rem}
  .bits,.grade{font-size:1.125rem}
  .crack{font-size:1rem;margin-bottom:18px}
  .hint{display:none}
  .panel{padding:20px 16px 22px}
  .field,.field-range{grid-column:span 12}
  .opts{gap:20px}
  .history-list li{grid-template-columns:minmax(0,1fr) auto;gap:8px 12px}
  .history-list .h-bits{grid-column:1;font-size:.7rem}
  .history-list .btn{grid-column:2;grid-row:1 / span 2}
  .section-head{font-size:1.625rem}
  .foot{padding:16px 16px 32px}
}

@media (prefers-reduced-motion:reduce){
  *{transition:none!important;animation:none!important}
}