:root {
  --ink: #171612;
  --paper: #f0e9d5;
  --brass: #c89b43;
  --brass-light: #e4c276;
  --brass-dark: #6f4e1d;
  --red: #b13a2f;
  font-family: "SFMono-Regular", "Cascadia Mono", "Roboto Mono", ui-monospace, monospace;
  color: var(--ink);
  background: #b5aa8d;
}

* { box-sizing: border-box; }
button { font: inherit; }
body {
  margin: 0;
  min-height: 100dvh;
  overflow-x: hidden;
  background:
    linear-gradient(100deg, transparent 0 48%, rgb(255 255 255 / .08) 50%, transparent 52%) 0 0 / 120px 100%,
    radial-gradient(circle at 17% 20%, rgb(255 255 255 / .32), transparent 28%),
    repeating-linear-gradient(88deg, #b5aa8d 0 3px, #afa387 3px 6px, #baaf94 6px 11px);
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  opacity: .2;
  background-image: repeating-radial-gradient(circle at 30% 30%, transparent 0 2px, #302b20 3px 3.5px, transparent 4px 8px);
  mix-blend-mode: multiply;
}

.workbench { min-height: 100dvh; display: grid; grid-template-rows: auto 1fr auto; padding: 22px clamp(18px, 4vw, 56px) 26px; }
.job-slip {
  justify-self: center;
  width: min(100%, 880px);
  display: grid;
  grid-template-columns: .7fr 1.3fr 1fr 1fr;
  transform: rotate(-.4deg);
  background: var(--paper);
  border: 1px solid #726c5d;
  box-shadow: 4px 6px 0 rgb(48 43 32 / .3), inset 0 0 35px rgb(100 76 32 / .08);
}
.job-slip > div { padding: 11px 18px; border-right: 1px dashed #928a77; }
.job-slip > div:last-child { border: 0; }
.job-slip small, .gauge-title { display: block; font-size: 9px; font-weight: 500; letter-spacing: .18em; color: #6d6658; }
.job-slip strong { display: block; margin-top: 2px; font: 900 clamp(16px, 2.4vw, 25px) "Arial Black", Impact, sans-serif; letter-spacing: .05em; }
.urgent { color: var(--red); animation: blink .45s steps(2) infinite; }

.lock-stage { position: relative; display: grid; place-items: center; padding: 18px 0 10px; }
.brand-stamp { position: absolute; left: 1%; bottom: 7%; transform: rotate(-8deg); color: rgb(74 50 20 / .45); font: 900 17px/1 "Arial Black", Impact, sans-serif; text-align: center; border: 3px double currentColor; padding: 10px; }
.brand-stamp span { font: 500 8px "SFMono-Regular", monospace; letter-spacing: .12em; }
.cylinder {
  position: relative;
  width: min(790px, 92vw);
  min-height: min(390px, 52vh);
  border-radius: 46% 46% 22% 22% / 13% 13% 8% 8%;
  padding: 20px clamp(24px, 6vw, 72px) 44px;
  background:
    linear-gradient(90deg, rgb(65 40 8 / .3), transparent 8% 91%, rgb(65 40 8 / .34)),
    repeating-linear-gradient(96deg, transparent 0 11px, rgb(255 255 255 / .07) 12px 13px, transparent 14px 28px),
    linear-gradient(#e7c979, #b58232 45%, #d6ad58 72%, #8f6428);
  border: 2px solid #74501e;
  box-shadow: inset 0 8px 7px rgb(255 255 255 / .35), inset 0 -15px 18px rgb(60 35 8 / .3), 0 18px 25px rgb(44 36 22 / .38);
  transition: transform .4s cubic-bezier(.2,.8,.2,1);
}
.cylinder::before, .cylinder::after { content: ""; position: absolute; top: 22%; bottom: 12%; width: 25px; border: 2px solid #6d481a; background: linear-gradient(90deg, #7e5722, #d7ad54, #76501f); }
.cylinder::before { left: -18px; border-radius: 16px 0 0 16px; }
.cylinder::after { right: -18px; border-radius: 0 16px 16px 0; }
.cylinder.opening { animation: unlock .85s ease-in-out; }
.cylinder-label { display: flex; justify-content: space-between; align-items: center; gap: 20px; margin-bottom: 12px; font-size: 10px; letter-spacing: .13em; color: #3e2a0f; }
.cylinder-label b { min-width: 170px; text-align: right; font: 900 11px "Arial Black", Impact, sans-serif; letter-spacing: .08em; }
.cylinder-label b.bad { color: #841e17; animation: shake .18s linear 2; }
.pin-window {
  position: relative;
  min-height: 270px;
  overflow: hidden;
  border: 4px solid #513b1f;
  border-radius: 15px 15px 27px 27px;
  background: linear-gradient(#282723, #494840 49%, #292824 50%, #171714);
  box-shadow: inset 0 8px 18px #0b0b09, 0 2px 0 rgb(255 255 255 / .3);
}
.shear-rule { position: absolute; z-index: 4; top: 46%; left: 0; right: 0; height: 3px; background: #f2ead3; box-shadow: 0 0 8px #fff; pointer-events: none; }
.shear-rule span { position: absolute; left: 8px; bottom: 7px; color: #f2ead3; font-size: 7px; letter-spacing: .15em; }
.pins { position: absolute; inset: 0 5%; display: flex; justify-content: center; align-items: stretch; gap: clamp(2px, 1.5vw, 18px); }
.pin {
  --lift: 0;
  position: relative;
  flex: 1;
  max-width: 76px;
  min-width: 36px;
  border: 0;
  padding: 0;
  color: #eee8d8;
  background: transparent;
  cursor: ns-resize;
  touch-action: none;
  outline: none;
}
.pin::after { content: ""; position: absolute; inset: 0 -4px; border: 1px solid transparent; border-radius: 5px; }
.pin.selected::after { border-color: rgb(255 255 255 / .22); }
.spring { position: absolute; top: 0; left: 35%; width: 30%; height: 32%; background: repeating-linear-gradient(175deg, transparent 0 5px, #a09c8e 6px 8px, transparent 9px 13px); }
.driver { position: absolute; z-index: 2; top: 28%; left: 17%; width: 66%; height: 20%; border: 1px solid #6e6b60; border-radius: 5px 5px 2px 2px; background: linear-gradient(90deg, #747168, #d7d2c2 35%, #8c897e 75%, #5a5852); box-shadow: inset 0 2px 2px rgb(255 255 255 / .35); transform: translateY(calc(var(--lift) * -65px)); }
.key-pin { position: absolute; z-index: 3; left: 17%; bottom: 22px; width: 66%; height: 49%; border-radius: 3px 3px 25px 25px; border: 1px solid #817e73; background: linear-gradient(90deg, #5e5d57, #d8d3c5 36%, #8b887e 74%, #565550); box-shadow: inset 0 2px 2px rgb(255 255 255 / .4); transform: translateY(calc(var(--lift) * -65px)); }
.key-pin i { position: absolute; top: -4px; left: -2px; right: -2px; height: 7px; border-radius: 2px; background: #d9d4c6; box-shadow: 0 1px 2px #222; }
.pin-number { position: absolute; bottom: 2px; left: 0; right: 0; font-size: 9px; color: #918d81; }
.pin.binding .spring, .pin.binding .driver { animation: bind .14s linear infinite; filter: brightness(1.35); }
.pin.set .key-pin i { background: #f8cf57; box-shadow: 0 0 12px #ffc844; }
.pin.set { cursor: default; }
.keyway { position: absolute; bottom: 12px; left: 50%; width: 80px; height: 25px; transform: translateX(-50%); display: flex; justify-content: center; gap: 5px; }
.keyway i { display: block; width: 14px; height: 22px; transform: skew(-18deg); background: #493316; border-radius: 0 0 5px 5px; }

.tools { justify-self: center; width: min(100%, 920px); display: grid; grid-template-columns: minmax(220px,1fr) 180px minmax(190px,.8fr); align-items: center; gap: clamp(14px, 4vw, 50px); }
.gauge-title { display: flex; justify-content: space-between; margin-bottom: 8px; }
.gauge-title .good { color: #315b38; font-weight: 700; }
.gauge { position: relative; height: 23px; border: 2px solid #403a2f; background: #8b826d; box-shadow: inset 0 3px 5px rgb(0 0 0 / .35); }
.gauge::before { content: ""; position: absolute; inset: 0; background: repeating-linear-gradient(90deg, transparent 0 calc(10% - 1px), rgb(29 27 23 / .35) calc(10% - 1px) 10%); }
.sweet { position: absolute; top: 3px; bottom: 3px; background: repeating-linear-gradient(135deg, #d8e0b4 0 4px, #78905e 4px 8px); }
.needle { position: absolute; z-index: 3; top: -7px; bottom: -7px; width: 4px; margin-left: -2px; background: #181713; box-shadow: 1px 1px 0 #f5e6b8; transition: left .03s linear; }
.gauge-danger { position: absolute; right: 3px; top: 3px; font-size: 8px; color: #ece4d0; }
.tension-lever { position: relative; height: 75px; border: 0; background: transparent; cursor: pointer; touch-action: none; color: #1b1914; }
.lever-hinge { position: absolute; left: 7px; top: 50%; width: 42px; height: 42px; transform: translateY(-50%); border-radius: 50%; border: 4px solid #4b4436; background: radial-gradient(circle, #d6d0bf 0 20%, #797366 22% 42%, #282620 44%); }
.lever-arm { position: absolute; left: 39px; top: 33px; width: 102px; height: 12px; transform-origin: left center; transform: rotate(-8deg); border: 2px solid #554f43; background: linear-gradient(#e0dac7, #777165); box-shadow: 0 5px 7px rgb(0 0 0 / .3); transition: transform .12s; }
.tension-lever.held .lever-arm { transform: rotate(12deg); }
.tension-lever strong { position: absolute; right: 0; top: 16px; font: 900 10px/1.1 "Arial Black", Impact, sans-serif; letter-spacing: .05em; text-align: left; }
.tension-lever small { position: absolute; right: 6px; bottom: 12px; font-size: 7px; letter-spacing: .12em; }
.stress-track { height: 9px; border: 1px solid #4a4437; background: #776f5d; }
.stress-track i { display: block; height: 100%; width: 0; background: linear-gradient(90deg, #d5b34c, var(--red)); transition: width .15s; }
.stress-wrap > small { font-size: 7px; letter-spacing: .05em; color: #5e5749; }
.sound { position: fixed; z-index: 8; right: 15px; bottom: 12px; padding: 8px; border: 0; color: #4a4438; background: transparent; font-size: 8px; letter-spacing: .11em; cursor: pointer; }

.overlay { position: fixed; z-index: 10; inset: 0; display: grid; place-items: center; padding: 20px; background: rgb(55 48 34 / .72); backdrop-filter: blur(7px); opacity: 0; pointer-events: none; transition: opacity .25s; }
.overlay.visible { opacity: 1; pointer-events: auto; }
.case-file { position: relative; width: min(570px, 100%); padding: clamp(28px, 6vw, 56px); background: var(--paper); transform: rotate(.35deg); box-shadow: 13px 16px 0 rgb(42 35 23 / .35); border: 1px solid #716a5a; text-align: center; }
.case-file::before { content: "CONFIDENTIAL"; position: absolute; right: 22px; top: 24px; transform: rotate(8deg); border: 2px solid rgb(151 43 35 / .55); color: rgb(151 43 35 / .55); padding: 5px 8px; font: 900 9px "Arial Black", Impact, sans-serif; letter-spacing: .12em; }
.kicker { margin: 0; font-size: 9px; letter-spacing: .2em; color: #686153; }
h1 { margin: 14px 0 8px; font: 900 clamp(62px, 16vw, 112px)/.82 "Arial Black", Impact, sans-serif; letter-spacing: -.1em; }
h1 span { color: var(--red); }
.pitch { max-width: 46ch; margin: 22px auto; font-size: 12px; line-height: 1.65; color: #5a5448; }
.instructions { display: grid; grid-template-columns: 1fr 1fr; margin: 25px 0; border-block: 1px dashed #aaa18d; }
.instructions > div { display: flex; justify-content: center; align-items: center; gap: 12px; padding: 16px 8px; font-size: 9px; line-height: 1.4; text-align: left; }
.instructions > div + div { border-left: 1px dashed #aaa18d; }
kbd, .mouse-icon { min-width: 42px; padding: 8px 5px; border: 1px solid #6a6355; border-radius: 3px; box-shadow: 0 3px 0 #6a6355; background: #fffaf0; font: 800 8px "Arial Black", Impact, sans-serif; text-align: center; }
.mouse-icon { font-size: 18px; line-height: 1; }
.start { width: min(330px, 100%); border: 0; padding: 16px 20px; background: var(--ink); color: var(--paper); font: 800 12px "Arial Black", Impact, sans-serif; letter-spacing: .13em; cursor: pointer; box-shadow: 5px 5px 0 var(--red); }
.start:hover, .start:focus-visible { transform: translate(-2px,-2px); box-shadow: 7px 7px 0 var(--red); }
.start span { color: #e6bd5e; }
.best { margin: 20px 0 0; font-size: 8px; letter-spacing: .12em; color: #6b6456; }
.best b { color: var(--ink); }

@keyframes bind { 0%,100% { translate: -1px 0; } 50% { translate: 1px 0; } }
@keyframes shake { 0%,100% { transform: translateX(0); } 50% { transform: translateX(4px); } }
@keyframes unlock { 0%,100% { transform: rotate(0); } 40% { transform: rotate(-2deg) translateY(8px); } 70% { transform: rotate(1deg) translateY(-4px); } }
@keyframes blink { 50% { opacity: .35; } }

@media (max-width: 700px) {
  .workbench { padding: 12px 10px 50px; }
  .job-slip { grid-template-columns: repeat(4, 1fr); }
  .job-slip > div { padding: 8px 7px; }
  .job-slip small { font-size: 7px; letter-spacing: .08em; }
  .job-slip strong { font-size: 15px; }
  .brand-stamp { display: none; }
  .lock-stage { padding-block: 12px; }
  .cylinder { min-height: 360px; width: calc(100vw - 26px); padding: 14px 18px 38px; border-radius: 25px; }
  .cylinder-label { align-items: flex-start; font-size: 8px; }
  .cylinder-label b { min-width: 120px; font-size: 9px; }
  .pin-window { min-height: 275px; }
  .pins { inset-inline: 3%; gap: 1px; }
  .pin { min-width: 30px; }
  .tools { grid-template-columns: 1fr 130px; gap: 9px 16px; }
  .stress-wrap { grid-column: 1 / -1; }
  .tension-lever { height: 62px; }
  .lever-arm { width: 75px; }
  .case-file { padding: 30px 22px; }
  .case-file::before { top: 14px; right: 12px; font-size: 7px; }
}

@media (max-height: 700px) and (min-width: 701px) {
  .workbench { padding-block: 10px; }
  .cylinder { min-height: 330px; }
  .pin-window { min-height: 220px; }
  .pitch { margin-block: 12px; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation-duration: .001ms !important; animation-iteration-count: 1 !important; transition-duration: .001ms !important; }
}