/* ═══════════════════════════════════════════════════════════════
   STEAM HARBOUR — interface
   Victorian industrial: ink, brass, oxidised copper, bone paper
   ═══════════════════════════════════════════════════════════════ */

:root{
  --ink:        #08090b;
  --ink-2:      #0e1013;
  --brass:      #c9a24a;
  --brass-hi:   #f0d493;
  --brass-dim:  #8a6f33;
  --copper:     #6f9c8b;
  --bone:       #e9e2d2;
  --bone-dim:   #a49b88;
  --smoke:      #7d8890;
  --line:       rgba(233,226,210,.16);
  --line-soft:  rgba(233,226,210,.08);
  --serif: "Bodoni 72","Didot","Playfair Display","Baskerville",Georgia,"Times New Roman",serif;
  --sans: "Inter","Helvetica Neue","Segoe UI",system-ui,-apple-system,sans-serif;
  --mono: "SF Mono","JetBrains Mono","IBM Plex Mono",Consolas,"Courier New",monospace;
}

*{box-sizing:border-box;margin:0;padding:0;-webkit-tap-highlight-color:transparent}
html,body{height:100%;overflow:hidden;background:var(--ink);color:var(--bone);font-family:var(--sans)}
body{position:fixed;inset:0;overscroll-behavior:none}
canvas#view{position:fixed;inset:0;width:100%;height:100%;display:block;touch-action:none;cursor:crosshair}
body.dragging canvas#view{cursor:grabbing}
.hidden{opacity:0!important;pointer-events:none!important}
kbd{
  font-family:var(--mono);font-size:9.5px;letter-spacing:.06em;
  padding:2px 5px 2px;border:1px solid var(--line);border-bottom-color:rgba(233,226,210,.3);
  border-radius:2px;color:var(--bone-dim);background:rgba(255,255,255,.03);
  display:inline-block;line-height:1.3;min-width:16px;text-align:center;
}

/* ───────── loader ───────── */
.loader{
  position:fixed;inset:0;z-index:60;background:
    radial-gradient(120% 90% at 50% 42%,#121417 0%,#08090b 62%,#050607 100%);
  display:flex;align-items:center;justify-content:center;
  transition:opacity .9s cubic-bezier(.4,0,.2,1);
}
.loader-inner{width:min(420px,80vw);text-align:center}
.loader-mark{
  font-family:var(--serif);font-size:15px;letter-spacing:.66em;text-indent:.66em;
  color:var(--brass);opacity:.85;margin-bottom:20px;
}
.loader-rule{height:1px;background:linear-gradient(90deg,transparent,var(--line) 20%,var(--line) 80%,transparent);position:relative;margin-bottom:26px;overflow:hidden}
.loader-rule i{position:absolute;left:0;top:0;height:1px;width:30%;background:linear-gradient(90deg,transparent,var(--brass-hi),transparent);animation:scan 2.1s ease-in-out infinite}
@keyframes scan{0%{left:-30%}100%{left:100%}}
.loader-status{font-family:var(--mono);font-size:10px;letter-spacing:.22em;text-transform:uppercase;color:var(--bone-dim);height:14px;margin-bottom:14px}
.loader-bar{height:1px;background:rgba(233,226,210,.1);position:relative;overflow:hidden}
.loader-bar span{position:absolute;left:0;top:0;height:100%;width:0%;background:linear-gradient(90deg,var(--brass-dim),var(--brass-hi));transition:width .4s ease}
.loader-pct{font-family:var(--mono);font-size:9px;color:var(--brass-dim);letter-spacing:.2em;margin-top:12px}

/* ───────── splash ───────── */
.splash{
  position:fixed;inset:0;z-index:50;display:flex;flex-direction:column;
  align-items:center;justify-content:center;
  background:radial-gradient(120% 100% at 50% 30%,rgba(6,7,9,.34) 0%,rgba(5,6,8,.78) 55%,rgba(4,5,6,.94) 100%);
  backdrop-filter:blur(6px) saturate(.8);-webkit-backdrop-filter:blur(6px) saturate(.8);
  transition:opacity 1.2s ease;
}
.splash-grain{
  position:absolute;inset:0;pointer-events:none;opacity:.35;mix-blend-mode:overlay;
  background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='140' height='140'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.9' numOctaves='3'/%3E%3C/filter%3E%3Crect width='140' height='140' filter='url(%23n)' opacity='.5'/%3E%3C/svg%3E");
}
.splash-card{position:relative;text-align:center;max-width:min(760px,88vw);animation:rise 1.4s cubic-bezier(.2,.7,.2,1) both}
@keyframes rise{from{opacity:0;transform:translateY(18px)}to{opacity:1;transform:none}}
.kicker{
  font-family:var(--mono);font-size:9.5px;letter-spacing:.34em;text-transform:uppercase;
  color:var(--brass);opacity:.8;margin-bottom:26px;
}
.wordmark{
  font-family:var(--serif);font-weight:400;
  font-size:clamp(56px,11.5vw,150px);line-height:.82;letter-spacing:.02em;
  color:var(--bone);
  text-shadow:0 0 60px rgba(201,162,74,.14), 0 2px 0 rgba(0,0,0,.4);
}
.wordmark span{
  display:block;font-style:italic;letter-spacing:.09em;
  background:linear-gradient(178deg,#f4e3b8 0%,#d6b264 38%,#a8842f 68%,#e2c98c 100%);
  -webkit-background-clip:text;background-clip:text;color:transparent;
  filter:drop-shadow(0 0 34px rgba(201,162,74,.22));
}
.splash-rule{display:flex;align-items:center;justify-content:center;gap:14px;margin:34px 0 26px;color:var(--brass);opacity:.7}
.splash-rule i{display:block;width:min(120px,18vw);height:1px;background:linear-gradient(90deg,transparent,var(--line))}
.splash-rule i:last-child{background:linear-gradient(90deg,var(--line),transparent)}
.splash-rule b{font-size:10px;font-weight:400}
.blurb{
  font-family:var(--serif);font-size:clamp(13px,1.5vw,16px);line-height:1.72;
  color:#bdb4a3;max-width:56ch;margin:0 auto 38px;font-style:italic;
  text-wrap:balance;
}
.blurb em{color:var(--bone);font-style:normal;letter-spacing:.02em}
.enter-btn{
  position:relative;appearance:none;background:transparent;color:var(--brass-hi);
  border:1px solid rgba(201,162,74,.5);padding:15px 30px;
  font-family:var(--mono);font-size:10.5px;letter-spacing:.28em;text-transform:uppercase;
  cursor:pointer;transition:all .45s cubic-bezier(.2,.7,.2,1);
  display:inline-flex;align-items:center;gap:16px;
}
.enter-btn::before{
  content:"";position:absolute;inset:0;background:linear-gradient(90deg,rgba(201,162,74,.0),rgba(201,162,74,.16),rgba(201,162,74,.0));
  opacity:0;transition:opacity .45s;
}
.enter-btn:hover{border-color:var(--brass-hi);color:#fff6e0;box-shadow:0 0 40px rgba(201,162,74,.18),inset 0 0 24px rgba(201,162,74,.07)}
.enter-btn:hover::before{opacity:1}
.enter-btn kbd{color:var(--brass);border-color:rgba(201,162,74,.4)}
.splash-hints{
  margin-top:34px;display:flex;flex-wrap:wrap;gap:6px 20px;justify-content:center;
  font-family:var(--mono);font-size:9px;letter-spacing:.1em;color:#6d6a62;text-transform:uppercase;
}
.splash-hints b{color:var(--bone-dim);font-weight:400;border-bottom:1px solid var(--line-soft);padding-bottom:1px}
.splash-foot{
  position:absolute;bottom:26px;left:0;right:0;text-align:center;
  font-family:var(--mono);font-size:8.5px;letter-spacing:.18em;color:#4a4b48;text-transform:uppercase;
}

/* ───────── HUD ───────── */
.hud{position:fixed;inset:0;z-index:20;pointer-events:none;transition:opacity .6s ease;
  font-family:var(--mono);text-shadow:0 1px 12px rgba(0,0,0,.75)}
.hud > *{pointer-events:none}

.hud-top{
  position:absolute;top:0;left:0;right:0;padding:22px 26px;display:flex;
  align-items:flex-start;justify-content:space-between;gap:20px;
  background:linear-gradient(180deg,rgba(4,5,7,.55),transparent);
}
.brand-name{font-family:var(--serif);font-size:15px;letter-spacing:.42em;color:rgba(233,226,210,.9);text-indent:.42em}
.brand-sub{font-size:8px;letter-spacing:.26em;color:var(--brass);opacity:.7;margin-top:5px}
.clockbox{text-align:center;min-width:190px}
.clock{font-size:26px;letter-spacing:.06em;color:var(--bone);font-variant-numeric:tabular-nums;line-height:1}
.clock-meta{font-size:7.5px;letter-spacing:.24em;text-transform:uppercase;color:var(--bone-dim);margin-top:7px}
.clock-meta .dot{opacity:.4;margin:0 5px}
.sunbar{position:relative;height:16px;margin-top:9px;overflow:hidden}
.sunbar-arc{position:absolute;left:0;right:0;bottom:-12px;height:24px;border-radius:50% 50% 0 0;border-top:1px solid rgba(233,226,210,.14)}
.sunbar-dot{
  position:absolute;width:5px;height:5px;border-radius:50%;background:var(--brass-hi);
  box-shadow:0 0 10px rgba(240,212,147,.85);top:6px;left:0%;
  transform:translate(-50%,-50%);transition:left .2s linear;
}
.statbox{display:flex;gap:22px;align-items:flex-start;min-width:150px;justify-content:flex-end}
.stat{text-align:right}
.stat label{display:block;font-size:7px;letter-spacing:.22em;color:var(--brass);opacity:.6;margin-bottom:4px}
.stat b{font-weight:400;font-size:11px;letter-spacing:.08em;color:var(--bone);font-variant-numeric:tabular-nums}

.compass{
  position:absolute;left:50%;bottom:132px;transform:translateX(-50%);
  width:min(440px,52vw);height:24px;overflow:hidden;
  mask-image:linear-gradient(90deg,transparent,#000 22%,#000 78%,transparent);
  -webkit-mask-image:linear-gradient(90deg,transparent,#000 22%,#000 78%,transparent);
  opacity:.85;
}
.compass-strip{position:absolute;top:0;left:0;height:100%;white-space:nowrap;will-change:transform}
.compass-strip span{
  display:inline-block;width:11px;text-align:center;font-size:8px;letter-spacing:.14em;
  color:var(--bone-dim);line-height:24px;position:relative;
}
.compass-strip span.major{color:var(--bone);font-size:9px}
.compass-strip span.tick::after{content:"";position:absolute;left:50%;bottom:2px;width:1px;height:4px;background:rgba(233,226,210,.25)}
.compass-needle{position:absolute;left:50%;top:0;width:1px;height:24px;background:linear-gradient(180deg,transparent,var(--brass-hi))}

.hud-bottom{position:absolute;left:0;right:0;bottom:0;padding:0 26px 20px;display:flex;align-items:flex-end;justify-content:space-between;gap:24px;
  background:linear-gradient(0deg,rgba(4,5,7,.62),transparent);padding-top:46px}
.hints{display:flex;flex-wrap:wrap;gap:5px 16px;font-size:8px;letter-spacing:.1em;color:#8d8778;text-transform:uppercase;max-width:44vw}
.hints span{display:inline-flex;align-items:center;gap:4px}
.hints kbd{font-size:8px;padding:1px 4px;min-width:14px}

.timepanel{width:min(420px,40vw);pointer-events:auto;text-align:center}
.timepanel-row{display:flex;align-items:center;justify-content:center;gap:10px;margin-bottom:9px}
.tp-btn{
  background:transparent;border:1px solid var(--line-soft);color:var(--bone-dim);
  width:21px;height:21px;line-height:1;font-size:9px;cursor:pointer;border-radius:2px;
  transition:all .25s;font-family:var(--mono)
}
.tp-btn:hover{border-color:rgba(201,162,74,.6);color:var(--brass-hi)}
.tp-btn.play{width:26px}
.tp-speed{font-size:8px;letter-spacing:.16em;color:var(--brass);opacity:.75;min-width:44px;text-align:left}
.time-slider{
  -webkit-appearance:none;appearance:none;width:100%;height:14px;background:transparent;cursor:ew-resize;display:block;
}
.time-slider::-webkit-slider-runnable-track{height:1px;background:linear-gradient(90deg,#2b3340,#c9a24a 25%,#dfe6ef 50%,#c1773f 76%,#1b2230)}
.time-slider::-moz-range-track{height:1px;background:linear-gradient(90deg,#2b3340,#c9a24a 25%,#dfe6ef 50%,#c1773f 76%,#1b2230)}
.time-slider::-webkit-slider-thumb{-webkit-appearance:none;width:9px;height:9px;border-radius:50%;background:var(--brass-hi);margin-top:-4px;box-shadow:0 0 12px rgba(240,212,147,.8)}
.time-slider::-moz-range-thumb{width:9px;height:9px;border:0;border-radius:50%;background:var(--brass-hi);box-shadow:0 0 12px rgba(240,212,147,.8)}
.time-ticks{display:flex;justify-content:space-between;font-size:7px;letter-spacing:.2em;color:#6a6559;text-transform:uppercase;margin-top:5px}
.modeline{text-align:right;min-width:130px}
.ml-label{display:block;font-size:7px;letter-spacing:.24em;color:var(--brass);opacity:.6;margin-bottom:4px}
.modeline b{font-weight:400;font-size:10px;letter-spacing:.12em;color:var(--bone);text-transform:uppercase}

/* ───────── sheets ───────── */
.sheet{
  position:fixed;inset:0;z-index:40;display:flex;align-items:center;justify-content:center;
  background:rgba(3,4,6,.72);backdrop-filter:blur(10px);-webkit-backdrop-filter:blur(10px);
  transition:opacity .4s ease;padding:24px;
}
.sheet-card{
  position:relative;width:min(720px,92vw);max-height:86vh;overflow:auto;
  border:1px solid var(--line);background:linear-gradient(160deg,#0d0f12,#090a0c);
  padding:44px 46px;box-shadow:0 40px 120px rgba(0,0,0,.7);
  scrollbar-width:thin;scrollbar-color:#333 transparent;
}
.sheet-card.small{width:min(440px,92vw);padding:34px 34px}
.sheet-card h2{font-family:var(--serif);font-weight:400;font-size:25px;letter-spacing:.16em;color:var(--bone);margin-bottom:26px;text-transform:uppercase}
.sheet-close{
  position:absolute;top:14px;right:16px;background:none;border:0;color:var(--bone-dim);
  font-size:14px;cursor:pointer;padding:8px;transition:color .2s;line-height:1
}
.sheet-close:hover{color:var(--brass-hi)}
.keys{display:grid;grid-template-columns:auto 1fr;gap:10px 22px;align-items:baseline}
.keys div{white-space:nowrap}
.keys p{font-family:var(--sans);font-size:12px;color:var(--bone-dim);letter-spacing:.01em}
.sheet-note{
  margin-top:26px;padding-top:20px;border-top:1px solid var(--line-soft);
  font-family:var(--serif);font-style:italic;font-size:12.5px;line-height:1.65;color:#8f8879
}
.sheet-note b{color:var(--bone-dim);font-style:normal;font-family:var(--mono);font-size:10px;letter-spacing:.08em}

.row{display:flex;align-items:center;gap:12px;margin-bottom:16px;font-family:var(--sans);font-size:11.5px;color:var(--bone-dim)}
.row span{width:96px;flex:none;letter-spacing:.05em}
.row b{width:44px;flex:none;text-align:right;font-family:var(--mono);font-size:9.5px;color:var(--brass)}
.row input[type=range]{flex:1;-webkit-appearance:none;appearance:none;height:1px;background:rgba(233,226,210,.16);cursor:pointer}
.row input[type=range]::-webkit-slider-thumb{-webkit-appearance:none;width:8px;height:8px;border-radius:50%;background:var(--brass-hi)}
.row input[type=range]::-moz-range-thumb{border:0;width:8px;height:8px;border-radius:50%;background:var(--brass-hi)}
.row select{
  flex:1;background:#121418;color:var(--bone);border:1px solid var(--line);
  font-family:var(--mono);font-size:10px;padding:5px 6px;letter-spacing:.08em
}

.toast{
  position:fixed;left:50%;bottom:120px;transform:translate(-50%,10px);z-index:30;
  font-family:var(--mono);font-size:9px;letter-spacing:.26em;text-transform:uppercase;
  color:var(--brass-hi);background:rgba(8,9,11,.7);border:1px solid rgba(201,162,74,.28);
  padding:9px 18px;opacity:0;pointer-events:none;transition:opacity .35s,transform .35s;
  backdrop-filter:blur(6px);-webkit-backdrop-filter:blur(6px)
}
.toast.show{opacity:1;transform:translate(-50%,0)}

.grade-vignette{
  position:fixed;inset:0;z-index:15;pointer-events:none;
  background:radial-gradient(120% 100% at 50% 50%,transparent 52%,rgba(3,4,6,.42) 100%);
  mix-blend-mode:multiply;opacity:.85
}
body.clean .hud,body.clean .compass,body.clean .grade-vignette{opacity:0;pointer-events:none}
body.clean canvas#view{cursor:none}

/* photo mode */
body.photo .grade-vignette{opacity:1;background:radial-gradient(100% 92% at 50% 50%,transparent 40%,rgba(3,4,6,.62) 100%)}
body.photo::before,body.photo::after{
  content:"";position:fixed;left:0;right:0;height:7.5vh;background:#040507;z-index:14;pointer-events:none
}
body.photo::before{top:0}body.photo::after{bottom:0}

.fatal{
  position:fixed;inset:0;z-index:100;display:flex;align-items:center;justify-content:center;
  background:#08090b;color:var(--bone);font-family:var(--mono);font-size:12px;
  letter-spacing:.1em;text-align:center;padding:40px;line-height:1.9
}
.fatal.hidden{display:none}

@media (max-width:900px){
  .hints{display:none}
  .statbox{display:none}
  .compass{display:none}
  .clockbox{min-width:120px}
  .clock{font-size:20px}
  .timepanel{width:60vw}
  .time-ticks span:nth-child(2),.time-ticks span:nth-child(4){display:none}
  .sheet-card{padding:30px 24px}
}
@media (max-width:560px){
  .hud-top{padding:14px}
  .brand-sub{display:none}
  .timepanel{width:100%}
  .modeline{display:none}
  .hud-bottom{justify-content:center}
}
@media (prefers-reduced-motion:reduce){
  .loader-rule i{animation:none}
  .splash-card{animation:none}
}