/* GRAF80 — futuristic punk / retro-neon UI */
:root{
  --bg:#07080b; --panel:rgba(16,18,24,.82); --panel-solid:#0c0e14;
  --line:rgba(255,255,255,.10); --line2:rgba(255,255,255,.06);
  --text:#e9ecf4; --muted:#8a90a2;
  --neon:#39ff14; --pink:#ff2e88; --cyan:#00e5ff; --purple:#b026ff; --yellow:#f5ff00;
  --glow:0 0 12px rgba(57,255,20,.55);
}
*{box-sizing:border-box; -webkit-tap-highlight-color:transparent}
html,body{height:100%;margin:0;overflow:hidden;background:var(--bg);color:var(--text);
  font-family:'Chakra Petch',system-ui,Segoe UI,Roboto,sans-serif;overscroll-behavior:none;
  user-select:none;-webkit-user-select:none;touch-action:none}
a{color:var(--cyan);text-decoration:none}

#board{position:fixed;inset:0;width:100%;height:100%;display:block;cursor:crosshair;z-index:1}

/* scanline + grain ambience */
.fx{position:fixed;inset:0;z-index:2;pointer-events:none;mix-blend-mode:overlay;opacity:.5;
  background:
    repeating-linear-gradient(0deg,rgba(0,0,0,.0) 0 2px,rgba(0,0,0,.35) 2px 3px),
    radial-gradient(120% 90% at 50% 0%,transparent 60%,rgba(0,0,0,.5) 100%)}

/* ---------------- top bar ---------------- */
.topbar{position:fixed;top:0;left:0;right:0;z-index:10;display:flex;align-items:center;
  justify-content:space-between;gap:10px;padding:10px 14px;
  background:linear-gradient(#0a0c11ee,#0a0c1100);pointer-events:none}
.topbar>*{pointer-events:auto}
.brand{display:flex;align-items:baseline;gap:10px;font-weight:700;letter-spacing:1px}
.brand .glitch{font-family:'Permanent Marker',cursive;font-size:26px;color:var(--neon);
  text-shadow:var(--glow);position:relative}
.brand em{color:var(--muted);font-style:normal;font-size:12px;text-transform:uppercase;letter-spacing:3px}

.top-actions{display:flex;align-items:center;gap:8px;flex-wrap:wrap;justify-content:flex-end}
.zoombox{display:flex;align-items:center;gap:4px;background:var(--panel);border:1px solid var(--line);
  border-radius:12px;padding:4px;backdrop-filter:blur(10px)}
.zlabel{min-width:44px;text-align:center;font-size:12px;color:var(--muted);font-variant-numeric:tabular-nums}

.ic{width:34px;height:34px;border-radius:9px;border:1px solid var(--line);background:#171a22;color:var(--text);
  font-size:17px;cursor:pointer;display:grid;place-items:center;transition:.15s}
.ic.wide{width:auto;padding:0 10px;font-size:12px;letter-spacing:1px}
.ic:hover{border-color:var(--neon);color:var(--neon);box-shadow:var(--glow)}

.btn{border:1px solid var(--line);background:#171a22;color:var(--text);border-radius:10px;
  padding:8px 12px;font-family:inherit;font-weight:700;font-size:12px;letter-spacing:1px;cursor:pointer;
  display:inline-flex;align-items:center;gap:6px;transition:.15s}
.btn:hover{border-color:var(--cyan);color:var(--cyan);box-shadow:0 0 12px rgba(0,229,255,.4)}
.btn.shot{border-color:var(--pink);color:var(--pink)}
.btn.shot:hover{background:var(--pink);color:#0a0a0a;box-shadow:0 0 16px rgba(255,46,136,.6)}
.btn.ghost{background:transparent}

/* ---------------- tool dock ---------------- */
.dock{position:fixed;left:50%;bottom:14px;transform:translate(-50%,0);z-index:10;max-width:97vw;
  display:flex;flex-direction:column;background:var(--panel);border:1px solid var(--line);border-radius:16px;
  backdrop-filter:blur(14px);box-shadow:0 10px 40px rgba(0,0,0,.55),inset 0 0 0 1px rgba(255,255,255,.03);
  transition:transform .28s cubic-bezier(.2,.8,.2,1),opacity .25s}
.dock-hidden .dock{transform:translate(-50%,170%);opacity:0;pointer-events:none}

.dock-grip{display:flex;align-items:center;justify-content:center;gap:9px;width:100%;padding:7px 0 4px;
  background:none;border:0;cursor:pointer;color:var(--muted)}
.dock-grip i{width:42px;height:5px;border-radius:3px;background:#39424f;display:block;transition:.15s}
.dock-grip b{font-size:10px;letter-spacing:2px;text-transform:uppercase;font-weight:700}
.dock-grip:hover{color:var(--neon)}
.dock-grip:hover i{background:var(--neon);box-shadow:var(--glow)}

.dock-scroll{display:flex;align-items:stretch;gap:12px;padding:2px 10px 10px;overflow-x:auto;scrollbar-width:thin}
.dock-scroll::-webkit-scrollbar{height:6px}
.dock-scroll::-webkit-scrollbar-thumb{background:#2a2f3c;border-radius:3px}
.group{display:flex;align-items:center;gap:8px;padding-right:12px;border-right:1px solid var(--line2)}
.group:last-child{border-right:0;padding-right:0}
.brushes{gap:6px}

/* floating "open tools" button — only visible while the dock is hidden */
.dock-fab{position:fixed;right:14px;bottom:16px;z-index:11;display:none;align-items:center;gap:8px;
  padding:12px 18px;border:0;border-radius:30px;cursor:pointer;font-family:inherit;font-weight:700;letter-spacing:1px;
  color:#08120a;background:linear-gradient(180deg,var(--neon),#27c40e);
  box-shadow:0 8px 26px rgba(57,255,20,.45),var(--glow)}
.dock-fab svg{width:22px;height:22px}
.dock-hidden .dock-fab{display:flex;animation:fabpop .25s}
@keyframes fabpop{from{transform:scale(.6);opacity:0}to{transform:scale(1);opacity:1}}

.brush{display:flex;flex-direction:column;align-items:center;gap:3px;width:56px;padding:7px 4px;
  border:1px solid var(--line);border-radius:11px;background:#12151d;color:var(--muted);
  font-size:10px;font-weight:600;letter-spacing:.3px;cursor:pointer;transition:.15s}
.brush svg{color:var(--muted);transition:.15s}
.brush:hover{color:var(--text);border-color:#39424f}
.brush:hover svg{color:var(--text)}
.brush.on{color:#0a0a0a;background:linear-gradient(180deg,var(--neon),#27c40e);border-color:var(--neon);
  box-shadow:var(--glow)}
.brush.on svg{color:#0a0a0a}

.swatches{display:flex;flex-wrap:wrap;gap:6px;max-width:132px}
.sw{width:26px;height:26px;border-radius:50%;border:2px solid rgba(255,255,255,.18);cursor:pointer;
  padding:0;transition:.12s;position:relative}
.sw:hover{transform:scale(1.12)}
.sw.on{border-color:#fff;box-shadow:0 0 0 2px var(--bg),0 0 12px rgba(255,255,255,.6)}
.sw.pick{display:grid;place-items:center;overflow:hidden;
  background:conic-gradient(#ff2e88,#f5ff00,#39ff14,#00e5ff,#b026ff,#ff2e88)}
.sw.pick input{opacity:0;width:100%;height:100%;cursor:pointer;border:0}

.sliders{flex-direction:column;gap:6px;min-width:150px}
.slider{display:flex;flex-direction:column;gap:2px;font-size:10px;color:var(--muted);letter-spacing:1px}
.slider b{color:var(--cyan);font-weight:700}
.slider input[type=range]{-webkit-appearance:none;appearance:none;height:5px;border-radius:4px;
  background:linear-gradient(90deg,var(--pink),var(--cyan));outline:none}
.slider input[type=range]::-webkit-slider-thumb{-webkit-appearance:none;width:16px;height:16px;border-radius:50%;
  background:#fff;border:2px solid var(--cyan);cursor:pointer;box-shadow:0 0 8px rgba(0,229,255,.6)}
.slider input[type=range]::-moz-range-thumb{width:16px;height:16px;border-radius:50%;background:#fff;
  border:2px solid var(--cyan);cursor:pointer}

.tools{flex-direction:column;gap:6px}
#preview{border:1px solid var(--line);border-radius:8px;background:#0c0d12;width:150px;height:56px}
.toggle{border:1px solid var(--line);background:#12151d;color:var(--muted);border-radius:9px;padding:7px 10px;
  font-family:inherit;font-weight:700;font-size:11px;letter-spacing:1px;cursor:pointer;display:flex;align-items:center;gap:5px}
.toggle svg{width:16px;height:16px}
.toggle.on{color:#0a0a0a;background:var(--yellow);border-color:var(--yellow);box-shadow:0 0 12px rgba(245,255,0,.4)}

/* ---------------- loader ---------------- */
.loader{position:fixed;inset:0;z-index:40;display:grid;place-items:center;gap:14px;
  background:radial-gradient(circle at 50% 40%,#0d0f16,#050609);transition:opacity .5s;grid-auto-flow:row}
.loader.gone{opacity:0;pointer-events:none}
.loader.err .spin{display:none}
.loader .spin{width:52px;height:52px;border-radius:50%;border:3px solid #1c2130;border-top-color:var(--neon);
  animation:spin 1s linear infinite;box-shadow:var(--glow)}
.loader .msg{color:var(--muted);font-size:13px;letter-spacing:2px;text-transform:uppercase;max-width:80vw;text-align:center}
.loader.err .msg{color:var(--pink)}
@keyframes spin{to{transform:rotate(360deg)}}

/* ---------------- toast ---------------- */
.toast{position:fixed;left:50%;bottom:140px;transform:translate(-50%,20px);z-index:30;
  background:#12151d;border:1px solid var(--neon);color:var(--text);padding:10px 16px;border-radius:12px;
  font-size:13px;letter-spacing:.5px;opacity:0;pointer-events:none;transition:.3s;box-shadow:var(--glow);white-space:nowrap}
.toast.show{opacity:1;transform:translate(-50%,0);pointer-events:auto}
.toast a{margin-left:8px;color:var(--neon);font-weight:700}

/* ---------------- help sheet ---------------- */
.sheet{position:fixed;inset:0;z-index:50;display:none;place-items:center;padding:18px;
  background:rgba(4,5,9,.72);backdrop-filter:blur(6px)}
.sheet.open{display:grid}
.sheet .card{position:relative;max-width:460px;width:100%;background:var(--panel-solid);
  border:1px solid var(--line);border-radius:18px;padding:26px;box-shadow:0 20px 80px #000}
.sheet h2{margin:0 0 6px}
.sheet h2 .glitch{font-family:'Permanent Marker',cursive;color:var(--neon);font-size:30px;text-shadow:var(--glow)}
.sheet p{color:var(--muted);margin:.3em 0 1em}
.sheet ul{margin:0 0 18px;padding-left:18px;line-height:1.7;font-size:14px}
.sheet li b{color:var(--text)}
.sheet kbd{background:#1b2030;border:1px solid var(--line);border-radius:5px;padding:1px 6px;font-size:12px}
.sheet .x{position:absolute;top:14px;right:16px;background:none;border:0;color:var(--muted);font-size:26px;cursor:pointer;line-height:1}
.btn.go{width:100%;justify-content:center;border-color:var(--neon);color:var(--neon);padding:12px}
.btn.go:hover{background:var(--neon);color:#0a0a0a;box-shadow:var(--glow)}

/* glitch */
.glitch{position:relative;display:inline-block}
.glitch::before,.glitch::after{content:attr(data-text);position:absolute;left:0;top:0;width:100%;overflow:hidden}
.glitch::before{color:var(--pink);transform:translate(-1.5px,0);clip-path:inset(0 0 55% 0);opacity:.7;
  animation:gl 3s infinite steps(2)}
.glitch::after{color:var(--cyan);transform:translate(1.5px,0);clip-path:inset(55% 0 0 0);opacity:.7;
  animation:gl 2.4s infinite steps(2) reverse}
@keyframes gl{0%,92%,100%{transform:translate(0)}93%{transform:translate(-2px,1px)}96%{transform:translate(2px,-1px)}}

/* ---------------- responsive ---------------- */
@media (max-width:760px){
  .brand em{display:none}
  .brand .glitch{font-size:22px}
  .btn.ghost{display:none}

  /* dock becomes a bottom sheet: full width, content wraps, scrolls vertically */
  .dock{left:0;right:0;bottom:0;transform:none;max-width:100%;width:100%;border-radius:16px 16px 0 0;max-height:70vh}
  .dock-hidden .dock{transform:translateY(110%)}
  .dock-scroll{flex-wrap:wrap;overflow-x:hidden;overflow-y:auto;justify-content:center;
    max-height:calc(70vh - 34px);padding:2px 12px 14px}
  .group{border-right:0;border-bottom:1px solid var(--line2);padding:9px 0;width:100%;justify-content:center;flex-wrap:wrap}
  .group:last-child{border-bottom:0}
  .brushes{gap:8px}
  .swatches{max-width:none}
  .sliders{flex-direction:row;flex-wrap:wrap;min-width:0;width:100%;justify-content:center;gap:16px}
  .slider{flex:1 1 130px;max-width:230px}
  .slider input[type=range]{width:100%}
  .tools{flex-direction:row;flex-wrap:wrap;justify-content:center}
  #preview{width:170px}
  .toast{bottom:96px}
}
@media (max-width:520px){
  .top-actions .btn.shot span{display:none}
  .brush{width:52px;font-size:9px}
  #preview{display:none}
}