*{box-sizing:border-box;margin:0;padding:0;-webkit-tap-highlight-color:transparent}
:root{
  color-scheme:dark;
  --gold:#F5A623;--gold2:#FFD166;--green:#06D6A0;--red:#EF476F;
  --r:16px;--rs:10px;
  --sans:-apple-system,BlinkMacSystemFont,"SF Pro Display","Segoe UI",Roboto,system-ui,sans-serif;
  --mono:ui-monospace,"SF Mono",Menlo,Consolas,monospace;
  --bg:#0A0A0C;--bg2:#16161A;--bg3:#1F1F25;--bg4:#2A2A30;
  --brd:rgba(255,255,255,.08);--brd2:rgba(245,166,35,.3);
  --t:#F5F5F7;--t2:#AEAEB3;--t3:#6B6B72;
  --sh:0 8px 24px rgba(0,0,0,.4);
}
html{background:#0A0A0C;color-scheme:dark}
html,body{overscroll-behavior:none;background-color:#0A0A0C}
body{background:var(--bg);color:var(--t);font-family:var(--sans);font-size:15px;line-height:1.4;-webkit-font-smoothing:antialiased;min-height:100vh;min-height:100dvh}
button{font-family:inherit;cursor:pointer;border:none;background:none;color:inherit}
input,select{font-family:inherit}

/* Layout */
.app{max-width:520px;margin:0 auto;padding:16px 16px calc(96px + env(safe-area-inset-bottom));min-height:100vh}
.top{display:flex;justify-content:space-between;align-items:center;margin-bottom:18px;padding-top:env(safe-area-inset-top)}
.brand{display:flex;align-items:center;gap:10px}
.brand-ico{width:38px;height:38px;border-radius:11px;background:linear-gradient(135deg,#FFD166,#F5A623);display:flex;align-items:center;justify-content:center;font-weight:800;font-size:16px;color:#1A1207;letter-spacing:-.5px;box-shadow:0 4px 12px rgba(245,166,35,.25)}
.brand-name{font-size:19px;font-weight:700;letter-spacing:-.5px}
.brand-name .p{color:var(--gold2)}

/* Live status pill (only when working) */
.live-pill{display:none;align-items:center;gap:6px;padding:6px 11px;background:rgba(6,214,160,.1);border:1px solid rgba(6,214,160,.25);border-radius:20px;font-size:11px;font-weight:600;color:var(--green)}
.live-pill.show{display:inline-flex}
.live-dot{width:6px;height:6px;border-radius:50%;background:var(--green);box-shadow:0 0 6px var(--green);animation:pulse 2s infinite}

/* Icon button (refresh) */
.icon-btn{width:36px;height:36px;border-radius:10px;background:var(--bg2);border:1px solid var(--brd);display:flex;align-items:center;justify-content:center;color:var(--t2);transition:all .15s;flex-shrink:0}
.icon-btn:active{transform:scale(.93) rotate(-180deg);color:var(--gold);border-color:var(--brd2)}
.icon-btn svg{width:16px;height:16px;transition:transform .4s}

@keyframes pulse{0%,100%{opacity:1}50%{opacity:.4}}

/* Section labels */
.section-lbl{font-size:11px;font-weight:700;color:var(--t3);letter-spacing:1.5px;text-transform:uppercase;margin-bottom:8px;padding-left:4px;display:flex;align-items:center;justify-content:space-between}

/* Karat selector */
.karat-row{display:grid;grid-template-columns:repeat(4,1fr);gap:6px;margin-bottom:18px}
.kr{padding:12px 4px;background:var(--bg2);border:1px solid var(--brd);border-radius:10px;color:var(--t2);font-weight:700;font-size:15px;transition:all .15s;text-align:center;line-height:1}
.kr .kp{display:block;font-size:9px;color:var(--t3);font-weight:500;margin-top:3px;font-family:var(--mono)}
.kr:active{transform:scale(.95)}
.kr.on{background:linear-gradient(135deg,rgba(245,166,35,.2),rgba(245,166,35,.05));border-color:var(--gold);color:var(--gold2);box-shadow:inset 0 1px 0 rgba(255,209,102,.15)}

/* Inputs */
.inputs{display:flex;flex-direction:column;gap:10px;margin-bottom:14px}
.grid2{display:grid;grid-template-columns:1fr 1fr;gap:10px}
.fd{display:flex;flex-direction:column;gap:6px}
.fd label{font-size:11px;font-weight:600;color:var(--t3);letter-spacing:.3px;text-transform:uppercase;padding-left:2px;display:flex;align-items:center;gap:6px}
.fd label .lh{display:inline-flex;align-items:center;gap:4px;color:var(--green);font-size:9px;letter-spacing:.5px;text-transform:none}
.fd label .lh-dot{width:5px;height:5px;border-radius:50%;background:var(--green);box-shadow:0 0 4px var(--green);animation:pulse 2s infinite}
.iw{position:relative}
.pfx{position:absolute;left:12px;top:50%;transform:translateY(-50%);color:var(--gold);font-weight:600;font-size:14px;font-family:var(--mono);pointer-events:none;z-index:1}
input[type=number],input[type=text],select{width:100%;padding:13px 14px;font-size:16px;font-weight:500;font-family:var(--mono);background:var(--bg2);border:1px solid var(--brd);border-radius:12px;color:var(--t);outline:none;transition:all .15s;-moz-appearance:textfield;appearance:textfield;min-height:48px}
input::-webkit-outer-spin-button,input::-webkit-inner-spin-button{-webkit-appearance:none;margin:0}
/* Prevent Safari/Chrome autofill from flashing a light background */
input:-webkit-autofill,input:-webkit-autofill:hover,input:-webkit-autofill:focus,input:-webkit-autofill:active{
  -webkit-text-fill-color:var(--t) !important;
  -webkit-box-shadow:0 0 0 1000px var(--bg2) inset !important;
  caret-color:var(--t);
  transition:background-color 5000s ease-in-out 0s;
}
.iw.hpx input,.iw.hpx select{padding-left:28px}
input::placeholder{color:var(--t3);font-weight:400}
input:focus,select:focus{border-color:var(--gold);background:var(--bg3)}
select{cursor:pointer;appearance:none;-webkit-appearance:none;background-image:url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='12' height='8' viewBox='0 0 12 8' fill='none'><path d='M1 1L6 6L11 1' stroke='%23888' stroke-width='1.5' stroke-linecap='round'/></svg>");background-repeat:no-repeat;background-position:right 14px center;padding-right:34px}

/* Result card */
.result{background:linear-gradient(135deg,#1F1F25 0%,#16161A 100%);border:1px solid var(--brd2);border-radius:20px;padding:24px 20px;position:relative;overflow:hidden;margin-bottom:14px;box-shadow:var(--sh)}
.result::before{content:'';position:absolute;top:0;left:0;right:0;height:1px;background:linear-gradient(90deg,transparent,var(--gold),transparent);opacity:.6}
.result::after{content:'';position:absolute;top:-40px;right:-40px;width:160px;height:160px;border-radius:50%;background:radial-gradient(circle,rgba(245,166,35,.08),transparent 70%);pointer-events:none}
.r-top{display:flex;justify-content:space-between;align-items:center;margin-bottom:16px;position:relative;z-index:1}
.r-badge{background:rgba(245,166,35,.15);border:1px solid rgba(245,166,35,.3);border-radius:7px;padding:4px 10px;font-size:12px;font-weight:700;color:var(--gold2);letter-spacing:.5px}
.r-pure{font-size:11px;color:var(--t3);font-family:var(--mono)}
.r-label{font-size:11px;color:var(--t3);font-weight:600;letter-spacing:1.5px;text-transform:uppercase;margin-bottom:4px}
.r-price{font-family:var(--mono);font-size:clamp(32px,10vw,44px);font-weight:700;color:var(--gold2);letter-spacing:-1px;line-height:1;margin-bottom:3px}
.r-price .unit{font-size:14px;color:var(--gold);font-weight:500;margin-left:6px;letter-spacing:.5px}
.r-sub{font-size:12px;color:var(--t3);font-family:var(--mono);margin-bottom:18px}
.r-divider{height:1px;background:var(--brd);margin:14px 0}
.r-row{display:flex;justify-content:space-between;align-items:baseline;padding:6px 0;font-size:13px}
.r-row .lbl{color:var(--t2);font-size:12px}
.r-row .val{font-family:var(--mono);font-weight:600;color:var(--t)}
.r-row .val.green{color:var(--green)}
.r-row.sub .lbl{font-size:11px;color:var(--t3)}
.r-row.sub .val{font-size:12px;color:var(--t2);font-weight:500}
.r-total{background:linear-gradient(135deg,rgba(245,166,35,.12),rgba(245,166,35,.04));border:1px solid rgba(245,166,35,.25);border-radius:12px;padding:14px;margin-top:12px;display:flex;justify-content:space-between;align-items:baseline}
.r-total .lbl{font-size:12px;font-weight:700;letter-spacing:1px;text-transform:uppercase;color:var(--gold)}
.r-total .val{font-family:var(--mono);font-size:18px;font-weight:700;color:var(--gold2);letter-spacing:-.3px}
.r-usd{text-align:right;font-size:11px;color:var(--t3);font-family:var(--mono);margin-top:4px}

/* Empty result placeholder */
.r-empty{text-align:center;padding:32px 16px;color:var(--t3)}
.r-empty .ei{font-size:36px;margin-bottom:10px}
.r-empty p{font-size:13px;line-height:1.5}

/* Action row */
.actions{display:grid;grid-template-columns:1fr 1fr 1fr;gap:8px;margin-bottom:18px}
.act{padding:14px 8px;border-radius:12px;background:var(--bg2);border:1px solid var(--brd);font-size:12px;font-weight:600;color:var(--t2);display:flex;flex-direction:column;align-items:center;justify-content:center;gap:4px;transition:all .15s;min-height:64px}
.act:active{transform:scale(.95);background:var(--bg3)}
.act svg{width:18px;height:18px}
.act.primary{background:linear-gradient(135deg,rgba(245,166,35,.18),rgba(245,166,35,.08));border-color:var(--brd2);color:var(--gold2)}
.act:disabled{opacity:.4;cursor:not-allowed}

/* Advanced section */
.advanced{background:var(--bg2);border:1px solid var(--brd);border-radius:14px;overflow:hidden;margin-bottom:14px}
.adv-head{padding:14px 16px;display:flex;justify-content:space-between;align-items:center;width:100%;text-align:left;font-weight:600;font-size:14px}
.adv-head .chev{color:var(--t3);transition:transform .25s}
.adv-head.open .chev{transform:rotate(180deg)}
.adv-head .lead{display:flex;align-items:center;gap:8px}
.adv-head .ico-b{color:var(--gold);display:flex}
.adv-head .ico-b svg{width:16px;height:16px}
.adv-body{max-height:0;overflow:hidden;transition:max-height .3s ease}
.adv-body.open{max-height:500px}
.adv-body-inner{padding:0 16px 16px;display:flex;flex-direction:column;gap:12px}

/* Quick weight chips */
.wt-chips{display:flex;gap:6px;flex-wrap:wrap;margin-top:-2px}
.wchip{padding:6px 12px;background:var(--bg2);border:1px solid var(--brd);border-radius:20px;color:var(--t2);font-size:12px;font-weight:600;transition:all .15s}
.wchip:active{transform:scale(.94);background:var(--bg3);border-color:var(--brd2);color:var(--gold2)}

/* Toggle for labour */
.toggle-g{display:flex;background:var(--bg3);border:1px solid var(--brd);border-radius:8px;padding:3px;gap:3px;margin-bottom:6px}
.tg-b{flex:1;padding:7px;border-radius:6px;font-size:11px;font-weight:700;color:var(--t3);transition:all .15s}
.tg-b.on{background:var(--gold);color:#000}

/* Bottom nav */
.bnav{position:fixed;bottom:0;left:0;right:0;background:rgba(22,22,26,.92);border-top:1px solid var(--brd);padding:8px 12px calc(8px + env(safe-area-inset-bottom));display:flex;justify-content:space-around;z-index:50;backdrop-filter:blur(20px);-webkit-backdrop-filter:blur(20px)}
.bn{flex:1;display:flex;flex-direction:column;align-items:center;gap:4px;padding:6px;color:var(--t3);font-size:10px;font-weight:600;transition:color .15s;min-height:54px}
.bn svg{width:20px;height:20px}
.bn.on{color:var(--gold2)}
.bn.on svg{filter:drop-shadow(0 0 4px rgba(245,166,35,.5))}
.bn:active{transform:scale(.94)}

/* Sheets */
.sheet-ovl{position:fixed;inset:0;background:rgba(0,0,0,.6);backdrop-filter:blur(4px);-webkit-backdrop-filter:blur(4px);opacity:0;pointer-events:none;transition:opacity .25s;z-index:60}
.sheet-ovl.on{opacity:1;pointer-events:auto}
.sheet{position:fixed;bottom:0;left:0;right:0;background:var(--bg);border-radius:20px 20px 0 0;padding:8px 16px calc(20px + env(safe-area-inset-bottom));transform:translateY(100%);transition:transform .3s cubic-bezier(.4,0,.2,1);z-index:61;max-height:88vh;overflow-y:auto;-webkit-overflow-scrolling:touch}
.sheet.on{transform:translateY(0)}
.sheet-grab{width:40px;height:4px;background:var(--brd);border-radius:2px;margin:6px auto 14px}
.sheet-head{display:flex;justify-content:space-between;align-items:center;margin-bottom:16px;padding:0 4px}
.sheet-title{font-size:18px;font-weight:700}
.sheet-close{width:32px;height:32px;border-radius:50%;background:var(--bg3);display:flex;align-items:center;justify-content:center;color:var(--t2);flex-shrink:0}
.sheet-close svg{width:14px;height:14px}
.sheet-clear{font-size:11px;color:var(--t3);font-weight:600;padding:6px 10px;border-radius:6px;background:var(--bg3)}
.sheet-clear:active{background:var(--bg4)}

/* Tools sheet sections */
.tool-block{background:var(--bg2);border:1px solid var(--brd);border-radius:14px;padding:16px;margin-bottom:12px}
.tool-head{display:flex;align-items:center;gap:8px;margin-bottom:12px}
.tool-ico{width:30px;height:30px;border-radius:8px;background:rgba(245,166,35,.12);color:var(--gold);display:flex;align-items:center;justify-content:center;flex-shrink:0}
.tool-ico svg{width:16px;height:16px}
.tool-title{font-size:14px;font-weight:700;color:var(--t)}
.tool-sub{font-size:11px;color:var(--t3);margin-top:1px}

/* Karat table */
.ktbl{width:100%;border-collapse:collapse}
.ktbl tr{border-bottom:1px solid var(--brd)}
.ktbl tr:last-child{border-bottom:none}
.ktbl td{padding:14px 6px;font-size:13px;font-family:var(--mono)}
.ktbl td:first-child{font-weight:700;font-size:15px;font-family:var(--sans);color:var(--t)}
.ktbl td.aed{text-align:right;color:var(--gold);font-weight:600}
.ktbl td.pur{color:var(--t3);font-size:11px;text-align:right}

/* Currency grid */
.cc-info{font-size:11px;color:var(--t3);margin-bottom:10px;padding:8px 12px;background:var(--bg3);border-radius:8px;border:1px solid var(--brd);line-height:1.4}
.cc-disclaimer{font-size:11px;color:var(--gold2);margin-top:10px;padding:9px 12px;background:rgba(245,166,35,.06);border-radius:8px;border:1px solid rgba(245,166,35,.18);line-height:1.4}
.ccgrid{display:grid;grid-template-columns:1fr 1fr;gap:8px}
.ccc{background:var(--bg3);border:1px solid var(--brd);border-radius:10px;padding:11px 12px;display:flex;align-items:center;gap:10px;cursor:pointer;transition:all .15s;position:relative}
.ccc:active{transform:scale(.97);background:var(--bg4)}
.ccc.edited{border-color:var(--gold);background:rgba(245,166,35,.06)}
.ccc.edited::after{content:'';position:absolute;top:6px;right:6px;width:6px;height:6px;border-radius:50%;background:var(--gold)}
.ccf{font-size:22px;line-height:1}
.cci{flex:1;min-width:0}
.ccn{font-size:10px;font-weight:700;color:var(--t3);letter-spacing:.5px;text-transform:uppercase;margin-bottom:2px;display:flex;align-items:center;gap:4px}
.cc-edit-dot{font-size:9px;color:var(--gold);font-weight:600}
.ccv{font-family:var(--mono);font-size:13px;font-weight:600;color:var(--t);word-break:break-all}
.cc-rate{font-size:9px;color:var(--t3);font-family:var(--mono);margin-top:1px}

/* Currency rate editor buttons */
.brow{display:flex;gap:8px}
.btn-reset,.btn-apply{flex:1;padding:13px;border-radius:11px;font-size:13px;font-weight:700;transition:all .15s;min-height:48px}
.btn-reset{background:var(--bg3);border:1px solid var(--brd);color:var(--t2)}
.btn-reset:active{transform:scale(.97);background:var(--bg4)}
.btn-apply{background:linear-gradient(135deg,var(--gold),var(--gold2));color:#1A1207;border:none}
.btn-apply:active{transform:scale(.97);opacity:.9}

/* Weight converter results */
.wcgrid{display:grid;grid-template-columns:1fr 1fr;gap:8px;margin-top:10px}
.wci{background:var(--bg3);border:1px solid var(--brd);border-radius:10px;padding:10px 12px}
.wcl{font-size:10px;font-weight:700;color:var(--t3);letter-spacing:.5px;text-transform:uppercase;margin-bottom:2px}
.wcv{font-family:var(--mono);font-size:14px;font-weight:600;color:var(--t)}

/* Profit results */
.pr-stat{background:var(--bg3);border:1px solid var(--brd);border-radius:10px;padding:12px;margin-top:8px}
.pr-row{display:flex;justify-content:space-between;align-items:baseline;padding:5px 0;font-size:13px}
.pr-row .lbl{color:var(--t3);font-size:12px}
.pr-row .val{font-family:var(--mono);font-weight:600;color:var(--t)}
.pr-pnl{margin-top:10px;padding:12px;border-radius:10px;text-align:center}
.pr-pnl.g{background:rgba(6,214,160,.08);border:1px solid rgba(6,214,160,.3);color:var(--green)}
.pr-pnl.r{background:rgba(239,71,111,.08);border:1px solid rgba(239,71,111,.3);color:var(--red)}
.pr-pnl-v{font-family:var(--mono);font-size:18px;font-weight:700}
.pr-pnl-l{font-size:10px;font-weight:700;letter-spacing:1px;text-transform:uppercase;margin-bottom:4px;opacity:.8}

/* Saved items */
.sv-count{font-size:11px;color:var(--t3);margin-bottom:10px;padding-left:2px;font-family:var(--mono);letter-spacing:.5px}
.sv-legend{font-size:11px;color:var(--t3);margin-bottom:12px;padding:8px 10px;background:var(--bg2);border:1px solid var(--brd);border-radius:8px;display:flex;align-items:center;flex-wrap:wrap;gap:2px;line-height:1.6}
.sv-legend .sv-badge{margin-left:0;margin-right:4px}
.sv-badge{display:inline-block;background:rgba(245,166,35,.18);border:1px solid rgba(245,166,35,.35);color:var(--gold2);font-size:9px;font-weight:700;padding:1px 5px;border-radius:4px;margin-left:4px;letter-spacing:.5px;font-family:var(--mono);vertical-align:middle}
.svi{background:var(--bg3);border:1px solid var(--brd);border-radius:12px;padding:12px 14px;display:flex;align-items:center;gap:10px;margin-bottom:8px}
.svi-meta{flex:1;min-width:0}
.svn{font-weight:600;font-size:14px;margin-bottom:2px;color:var(--t)}
.svd{font-size:11px;color:var(--t3);font-family:var(--mono)}
.svp{font-family:var(--mono);font-weight:600;color:var(--gold2);font-size:14px;white-space:nowrap;flex-shrink:0}
.svx{color:var(--t3);padding:8px;border-radius:8px;background:var(--bg4);flex-shrink:0;min-width:36px;min-height:36px;display:flex;align-items:center;justify-content:center}
.svx svg{width:14px;height:14px}
.svx:active{background:rgba(239,71,111,.15);color:var(--red)}

/* Empty state */
.empty{text-align:center;padding:48px 24px;color:var(--t3)}
.empty-ico{font-size:44px;margin-bottom:14px}
.empty-t{font-size:14px;line-height:1.6}

/* Toast */
/* Install chip (PWA prompt) */
.install-chip{position:fixed;top:calc(16px + env(safe-area-inset-top));right:16px;z-index:80;background:linear-gradient(135deg,var(--gold),var(--gold2));color:#1A1207;border:none;border-radius:22px;padding:8px 14px;font-family:var(--sans);font-size:12px;font-weight:700;display:flex;align-items:center;gap:5px;box-shadow:0 4px 14px rgba(245,166,35,.4);cursor:pointer;opacity:0;transform:translateY(-10px);transition:all .3s ease}
.install-chip.show{opacity:1;transform:translateY(0)}
.install-chip:active{transform:scale(.95)}

/* Banner (bulletproof feedback) */
.banner{position:fixed;left:16px;right:16px;bottom:calc(104px + env(safe-area-inset-bottom));max-width:480px;margin:0 auto;background:var(--bg4);border:1px solid var(--green);color:var(--green);border-radius:12px;padding:12px 18px;font-size:13px;font-weight:600;text-align:center;box-shadow:var(--sh);z-index:999;opacity:0;visibility:hidden;transform:translateY(10px);transition:opacity .2s,visibility .2s,transform .2s;pointer-events:none}
.banner.show{opacity:1;visibility:visible;transform:translateY(0)}
.banner.warn{border-color:var(--gold);color:var(--gold2)}
.banner.err{border-color:var(--red);color:var(--red)}

/* Animations */
@keyframes flash{0%{opacity:1}45%{opacity:.4}100%{opacity:1}}
.flash{animation:flash .35s ease}

@media(max-width:340px){
  .grid2{grid-template-columns:1fr}
  .ccgrid{grid-template-columns:1fr}
  .actions{grid-template-columns:1fr 1fr}
  .actions .act:nth-child(3){grid-column:span 2}
}