:root {
  --bg: #030405;
  --ink: #d9dcd6;
  --dim: #7d8582;
  --amber: #ffb347;
  --amber-d: #a8681c;
  --red: #ff4b3a;
  --cyan: #8fd8ff;
  --green: #7dffb0;
  --line: rgba(217, 220, 214, 0.18);
  --mono: "Consolas", "Lucida Console", "Courier New", monospace;
  --sans: "Segoe UI", "Helvetica Neue", Arial, sans-serif;
}
* { box-sizing: border-box; }
html, body { margin: 0; height: 100%; background: var(--bg); color: var(--ink); overflow: hidden; font: 14px/1.45 var(--sans); }
#app { position: fixed; inset: 0; user-select: none; -webkit-user-select: none; }
#gl { position: absolute; inset: 0; width: 100%; height: 100%; display: block; outline: none; cursor: none; }
#gl.cursor { cursor: crosshair; }
#toolc { position: absolute; inset: 0; width: 100%; height: 100%; pointer-events: none; }
.hidden { display: none !important; }
.overlay { position: absolute; inset: 0; }

/* ---------------------------------------------------------------- HUD */
#hud { position: absolute; inset: 0; pointer-events: none; }
#cross { position: absolute; left: 50%; top: 50%; width: 4px; height: 4px; margin: -2px 0 0 -2px; border-radius: 50%; background: rgba(230, 230, 220, 0.7); box-shadow: 0 0 4px rgba(0,0,0,0.8); transition: transform .12s, background .12s; }
#cross.hot { transform: scale(2.2); background: var(--amber); }
#cross.off { opacity: 0; }
#prompt { position: absolute; left: 50%; top: calc(50% + 26px); transform: translateX(-50%); font: 600 13px var(--sans); letter-spacing: .08em; text-transform: uppercase; color: var(--ink); text-shadow: 0 0 6px #000, 0 0 2px #000; white-space: nowrap; }
#prompt kbd { display: inline-block; min-width: 20px; padding: 0 5px; margin-right: 6px; border: 1px solid rgba(255,255,255,.55); border-radius: 3px; font: 700 11px var(--mono); color: #fff; text-align: center; }
#prompt .sub { display: block; margin-top: 3px; font: 400 11px var(--sans); letter-spacing: .04em; text-transform: none; color: var(--dim); text-align: center; }
#objective { position: absolute; left: 28px; top: 24px; max-width: 420px; opacity: 0; transition: opacity 1.2s; text-shadow: 0 0 6px #000; }
#objective.show { opacity: 1; }
#objective .lbl { display: block; font: 700 10px var(--sans); letter-spacing: .3em; text-transform: uppercase; color: var(--amber); }
#objective .txt { display: block; margin-top: 2px; font: 500 15px var(--sans); color: var(--ink); }
#cairn { position: absolute; left: 50%; bottom: 9%; transform: translateX(-50%); width: min(760px, 86vw); padding: 12px 18px 13px; background: linear-gradient(180deg, rgba(4,8,9,.78), rgba(4,8,9,.62)); border-left: 2px solid var(--cyan); opacity: 0; transition: opacity .5s; }
#cairn.show { opacity: 1; }
#hud.focus #cairn { bottom: auto; top: 14px; width: min(640px, 70vw); padding: 8px 14px; }
#hud.focus #cairn .txt { font-size: 14px; }
#hud.focus #objective { display: none; }
#cairn.glitch .txt { animation: glitch .18s steps(2) 4; }
#cairn .who { font: 700 10px var(--mono); letter-spacing: .35em; color: var(--cyan); margin-bottom: 4px; }
#cairn.person { border-left-color: var(--amber); }
#cairn.person .who { color: var(--amber); }
#cairn .txt { font: 400 16px/1.5 var(--mono); color: #e6efee; min-height: 1.5em; }
@keyframes glitch { 0% { transform: translateX(0); } 50% { transform: translateX(-2px); filter: hue-rotate(90deg); } 100% { transform: translateX(1px); } }
#toast { position: absolute; right: 28px; top: 24px; display: flex; flex-direction: column; gap: 6px; align-items: flex-end; }
#toast .t { padding: 7px 12px; background: rgba(5,8,9,.75); border-right: 2px solid var(--amber); font: 500 13px var(--sans); color: var(--ink); animation: toastin .4s ease-out; }
#toast .t.good { border-right-color: var(--green); }
#toast .t.bad { border-right-color: var(--red); }
@keyframes toastin { from { opacity: 0; transform: translateX(20px); } to { opacity: 1; transform: none; } }
#tools { position: absolute; left: 28px; bottom: 24px; display: flex; gap: 6px; }
#tools .tool { padding: 5px 9px 4px; min-width: 40px; background: rgba(5,8,9,.6); border: 1px solid var(--line); font: 600 11px var(--sans); letter-spacing: .06em; color: var(--dim); text-transform: uppercase; }
#tools .tool b { display: block; font: 700 10px var(--mono); color: var(--dim); }
#tools .tool.on { border-color: var(--amber); color: var(--ink); background: rgba(40,26,8,.55); }
#tools .tool.on b { color: var(--amber); }
#focushelp { position: absolute; left: 50%; bottom: 22px; transform: translateX(-50%); font: 500 12px var(--sans); color: var(--dim); text-shadow: 0 0 6px #000; letter-spacing: .04em; white-space: nowrap; }
#focushelp kbd { padding: 0 5px; border: 1px solid rgba(255,255,255,.4); border-radius: 3px; font: 700 10px var(--mono); color: #fff; margin: 0 3px; }
#savemark { position: absolute; right: 28px; bottom: 24px; font: 600 11px var(--mono); letter-spacing: .2em; color: var(--dim); opacity: 0; transition: opacity .6s; }
#savemark.show { opacity: 1; }

/* ---------------------------------------------------------------- sight */
#sight { pointer-events: none; background: radial-gradient(circle at 50% 50%, transparent 0 36vmin, rgba(0,0,0,.92) 37vmin, #000 60vmin); }
#sight .reticle { position: absolute; left: 50%; top: 50%; width: 64vmin; height: 64vmin; transform: translate(-50%, -50%); }
#sight .reticle i { position: absolute; background: rgba(255, 90, 60, .75); }
#sight .reticle .h { left: 0; right: 0; top: 50%; height: 1px; }
#sight .reticle .v { top: 0; bottom: 0; left: 50%; width: 1px; }
#sight .reticle .ring { left: 50%; top: 50%; width: 7vmin; height: 7vmin; margin: -3.5vmin 0 0 -3.5vmin; border: 1px solid rgba(255,90,60,.75); border-radius: 50%; background: none; }
#sight .readout { position: absolute; font: 600 13px/1.6 var(--mono); color: rgba(255,120,80,.9); text-shadow: 0 0 6px rgba(255,60,30,.5); white-space: pre; }
#sight .tl { left: 30px; top: 26px; } #sight .tr { right: 30px; top: 26px; text-align: right; }
#sight .bl { left: 30px; bottom: 26px; } #sight .br { right: 30px; bottom: 26px; text-align: right; }

/* ---------------------------------------------------------------- documents */
#doc { display: grid; place-items: center; background: rgba(0,0,0,.72); }
#doc .paper { width: min(640px, 92vw); max-height: 86vh; overflow: auto; padding: 34px 40px 22px; background: #d8d2c2; color: #1d1b17; box-shadow: 0 20px 60px rgba(0,0,0,.8); font: 16px/1.6 Georgia, "Times New Roman", serif; transform: rotate(-.4deg); }
#doc .paper.screen { background: #050a0b; color: #bfe9dd; font: 15px/1.6 var(--mono); border: 1px solid #1f3b37; transform: none; box-shadow: 0 0 40px rgba(60,200,170,.08), 0 20px 60px #000; }
#doc .paper.hand { font-family: "Segoe Print", "Bradley Hand", "Comic Sans MS", cursive; font-size: 17px; background: #e3dcc8 repeating-linear-gradient(180deg, transparent 0 27px, rgba(70,90,140,.18) 27px 28px); line-height: 28px; }
#doc .doc-head { font: 700 11px var(--mono); letter-spacing: .25em; text-transform: uppercase; opacity: .65; margin-bottom: 14px; }
#doc .doc-body p { margin: 0 0 12px; white-space: pre-wrap; }
#doc .doc-foot { margin-top: 18px; font: 600 11px var(--sans); letter-spacing: .1em; opacity: .5; text-align: right; }
#doc .lastlog { width: 100%; height: 160px; padding: 10px; background: #020606; color: #cdeee4; border: 1px solid #1f3b37; font: 15px/1.6 var(--mono); resize: none; }
#doc .lastlogok { padding: 8px 16px; background: none; border: 1px solid #3a6a62; color: #cdeee4; font: 600 12px var(--sans); letter-spacing: .15em; cursor: pointer; }
#doc .lastlogok:hover { border-color: var(--amber); }

/* ---------------------------------------------------------------- PDA */
#pda { display: grid; place-items: center; background: rgba(0,0,0,.6); }
#pda .pda { width: min(900px, 94vw); height: min(600px, 86vh); display: flex; flex-direction: column; background: rgba(6,9,10,.94); border: 1px solid var(--line); }
#pda .tabs { display: flex; border-bottom: 1px solid var(--line); }
#pda .tabs button { flex: 0 0 auto; padding: 12px 20px; background: none; border: 0; border-bottom: 2px solid transparent; color: var(--dim); font: 700 12px var(--sans); letter-spacing: .2em; text-transform: uppercase; cursor: pointer; }
#pda .tabs button.on { color: var(--ink); border-bottom-color: var(--amber); }
#pda .pane { flex: 1; overflow: auto; padding: 18px 22px; }
#pda .foot { padding: 8px 16px; font: 600 11px var(--sans); color: var(--dim); text-align: right; border-top: 1px solid var(--line); }
#pda .obj { padding: 10px 0 12px; border-bottom: 1px solid rgba(255,255,255,.06); }
#pda .obj h4 { margin: 0 0 4px; font: 600 15px var(--sans); color: var(--ink); }
#pda .obj.done h4 { color: var(--dim); text-decoration: line-through; }
#pda .obj p { margin: 0; color: #a9b0ad; }
#pda .obj .hint { margin-top: 6px; color: var(--amber); font-size: 13px; }
#pda .act { margin: 14px 0 2px; font: 700 10px var(--mono); letter-spacing: .3em; color: var(--amber); }
#pda-logs { display: flex; gap: 18px; }
#pda-logs .loglist { flex: 0 0 240px; border-right: 1px solid var(--line); padding-right: 12px; overflow: auto; }
#pda-logs .loglist button { display: block; width: 100%; text-align: left; padding: 8px 10px; margin-bottom: 2px; background: none; border: 0; color: #a9b0ad; font: 500 13px var(--sans); cursor: pointer; }
#pda-logs .loglist button:hover, #pda-logs .loglist button.on { background: rgba(255,179,71,.08); color: var(--ink); }
#pda-logs .logview { flex: 1; overflow: auto; white-space: pre-wrap; font: 14px/1.6 var(--mono); color: #c7d4cf; }
#pda-help table { border-collapse: collapse; width: 100%; }
#pda-help td { padding: 6px 8px; border-bottom: 1px solid rgba(255,255,255,.05); }
#pda-help td:first-child { width: 190px; font: 700 12px var(--mono); color: var(--amber); }

/* ---------------------------------------------------------------- menu */
#menu { display: flex; align-items: center; background: linear-gradient(90deg, rgba(0,0,0,.92) 0%, rgba(0,0,0,.7) 38%, rgba(0,0,0,.1) 75%); }
#menu .menu { margin-left: 8vw; width: min(460px, 84vw); }
#menu .title { display: flex; flex-direction: column; line-height: .9; }
#menu .t1 { font: 300 22px var(--sans); letter-spacing: .9em; color: var(--dim); }
#menu .t2 { font: 200 52px var(--sans); letter-spacing: .14em; color: var(--ink); }
#menu .sub { margin: 14px 0 34px; font: 600 10px var(--mono); letter-spacing: .25em; color: var(--amber-d); }
#menu .items button { display: block; width: 100%; padding: 9px 0 9px 2px; background: none; border: 0; text-align: left; color: #b9bfbb; font: 400 19px var(--sans); letter-spacing: .12em; text-transform: uppercase; cursor: pointer; transition: color .15s, padding .15s; }
#menu .items button:hover:not(:disabled), #menu .items button:focus-visible { color: #fff; padding-left: 12px; outline: none; }
#menu .items button:disabled { color: #4c524f; cursor: default; }
#menu .items button small { display: block; font: 500 11px var(--sans); letter-spacing: .06em; text-transform: none; color: var(--dim); }
#menu .status { margin-top: 26px; font: 500 12px var(--sans); color: var(--dim); min-height: 1.2em; }
#menu .status a { color: var(--amber); }
#menu .panel { margin-top: 6px; }
#menu .panel h3 { margin: 0 0 10px; font: 700 11px var(--sans); letter-spacing: .3em; text-transform: uppercase; color: var(--amber); }
#menu .row { display: flex; align-items: center; gap: 12px; padding: 7px 0; border-bottom: 1px solid rgba(255,255,255,.06); }
#menu .row label { flex: 1; color: #b9bfbb; }
#menu .row input[type=range] { width: 170px; accent-color: var(--amber); }
#menu .row select { background: #0c0f10; color: var(--ink); border: 1px solid var(--line); padding: 4px 6px; }
#menu .row input[type=checkbox] { accent-color: var(--amber); width: 16px; height: 16px; }
#menu .row .val { width: 44px; text-align: right; font: 600 12px var(--mono); color: var(--dim); }
#menu .slot { display: flex; align-items: center; gap: 10px; width: 100%; padding: 10px 8px; margin-bottom: 4px; background: rgba(255,255,255,.03); border: 1px solid transparent; color: var(--ink); text-align: left; cursor: pointer; font: inherit; }
#menu .slot:hover:not(:disabled) { border-color: var(--line); background: rgba(255,179,71,.06); }
#menu .slot:disabled { opacity: .45; cursor: default; }
#menu .slot .n { flex: 1; }
#menu .slot .n b { display: block; font: 600 14px var(--sans); }
#menu .slot .n span { font: 500 12px var(--sans); color: var(--dim); }
#menu .slot .p { font: 700 12px var(--mono); color: var(--amber); }
#menu .back { margin-top: 12px; background: none; border: 0; color: var(--dim); font: 600 12px var(--sans); letter-spacing: .2em; text-transform: uppercase; cursor: pointer; padding: 6px 0; }
#menu .back:hover { color: var(--ink); }

/* ---------------------------------------------------------------- ending */
#ending { display: flex; overflow-y: auto; padding: 32px 0; background: #000; }
#ending .end { width: min(680px, 88vw); margin: auto; font: 300 18px/1.8 var(--sans); color: #c9ccc7; }
#ending .end h1 { font: 200 40px var(--sans); letter-spacing: .14em; margin: 0 0 6px; color: #e8e8e4; }
#ending .end h2 { font: 700 11px var(--mono); letter-spacing: .35em; color: var(--amber-d); margin: 0 0 32px; }
#ending .end p { margin: 0 0 18px; opacity: 0; animation: fadein 2.5s forwards; }
#ending .end .stats { font: 500 13px/1.9 var(--mono); color: var(--dim); }
#ending .end textarea { width: 100%; height: 130px; background: #0a0c0d; color: var(--ink); border: 1px solid var(--line); padding: 12px; font: 15px/1.6 var(--mono); resize: none; }
#ending .end button { margin-top: 18px; margin-right: 10px; padding: 10px 18px; background: none; border: 1px solid var(--line); color: var(--ink); font: 600 12px var(--sans); letter-spacing: .2em; text-transform: uppercase; cursor: pointer; }
#ending .end button:hover { border-color: var(--amber); }
@keyframes fadein { to { opacity: 1; } }

/* ---------------------------------------------------------------- loading / fatal */
#loading { display: grid; place-items: center; background: #000; }
#loading .load { width: min(420px, 80vw); text-align: center; }
#loading .lt { font: 200 26px var(--sans); letter-spacing: .4em; color: var(--ink); margin-bottom: 26px; }
#loading .bar { height: 2px; background: rgba(255,255,255,.08); overflow: hidden; }
#loading .bar span { display: block; height: 100%; width: 0; background: var(--amber); transition: width .2s; }
#loading .ls { margin-top: 12px; font: 500 11px var(--mono); letter-spacing: .15em; color: var(--dim); text-transform: uppercase; }
#loading .warn { margin-top: 40px; font: 400 12px var(--sans); color: #5d6461; }
#fatal { display: grid; place-items: center; background: #000; }
#fatal .fatal { width: min(560px, 88vw); font: 14px/1.6 var(--mono); color: #e9b3a8; }
#fatal .fatal a { color: var(--amber); }