/* SDA Optic Click Calculator app — dark theme matched to the SDA IDPA 5x5 app */
:root{
  --bg:hsl(220 14% 9%);--fg:hsl(36 8% 90%);--card:hsl(220 13% 12%);--muted:hsl(220 11% 15%);
  --muted-fg:hsl(220 5% 58%);--border:hsl(220 10% 20%);--input:hsl(220 10% 16%);
  --o:#e85d04;--o2:#f48c06;--o-soft:rgba(232,93,4,.08);--warn:#ff9a52;
  --r:10px;--hdr-h:60px;
  color-scheme:dark;
}
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{-webkit-text-size-adjust:100%;text-size-adjust:100%;-webkit-tap-highlight-color:transparent;background:#000}
body{min-height:100vh;min-height:100dvh;background-color:var(--bg);color:var(--fg);font:16px/1.5 "Source Sans 3","Helvetica Neue",Arial,sans-serif;overflow-x:hidden;
  background-image:linear-gradient(rgba(232,93,4,.03) 1px,transparent 1px),linear-gradient(90deg,rgba(232,93,4,.03) 1px,transparent 1px);background-size:40px 40px;
  padding-left:env(safe-area-inset-left);padding-right:env(safe-area-inset-right);overscroll-behavior-y:none}
.rj{font-family:Rajdhani,"Arial Narrow",sans-serif}
button,input,select{font:inherit;color:inherit}
button{cursor:pointer;touch-action:manipulation}
a{color:var(--o)}
.sr{position:absolute!important;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap}

/* Header */
.hdr{position:sticky;top:0;z-index:20;background:#000;padding-top:env(safe-area-inset-top);border-bottom:1px solid rgba(124,45,18,.45)}
.hdr::before{content:"";display:block;height:3px;background:linear-gradient(90deg,#e85d04,#f48c06,#e85d04)}
.hdr::after{content:"";position:absolute;inset:0;background:linear-gradient(135deg,rgba(232,93,4,.08) 0%,transparent 60%);pointer-events:none}
.hdr-in{max-width:672px;margin:0 auto;display:flex;align-items:center;gap:10px;padding:6px 12px;min-height:var(--hdr-h);position:relative;z-index:1}
.hdr-logo{flex:0 0 auto;display:flex;align-items:center;min-height:44px}
.hdr-logo img{height:36px;width:auto;display:block;filter:drop-shadow(0 0 8px rgba(232,93,4,.3))}
.hdr-t{flex:1;min-width:0;text-align:center}
.hdr-t h1{font:700 18px/1.1 Rajdhani,"Arial Narrow",sans-serif;letter-spacing:.06em;text-transform:uppercase;color:#fff;text-shadow:0 0 20px rgba(232,93,4,.4);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.hdr-t p{font:600 11px/1.3 Rajdhani,sans-serif;letter-spacing:.18em;text-transform:uppercase;color:#f97316;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.icon-btn{flex:0 0 auto;width:44px;height:44px;display:grid;place-items:center;border-radius:8px;border:1px solid rgba(124,45,18,.6);background:transparent;color:#f97316}
.icon-btn:active,.icon-btn:hover{border-color:var(--o);background:rgba(67,20,7,.35)}
.icon-btn svg{width:20px;height:20px}

/* Layout */
main{max-width:672px;margin:0 auto;padding:12px 12px calc(16px + env(safe-area-inset-bottom));display:flex;flex-direction:column;gap:12px}
.card{background:var(--card);border:1px solid var(--border);border-radius:var(--r);overflow:hidden}
.card-h{display:flex;align-items:center;gap:8px;padding:9px 12px;border-bottom:1px solid var(--border);background:rgba(232,93,4,.06)}
.card-h .dot{width:8px;height:8px;border-radius:50%;background:var(--o);flex:0 0 auto}
.card-h .n{width:22px;height:22px;border-radius:50%;background:var(--o);color:#fff;display:grid;place-items:center;font:700 13px/1 Rajdhani,sans-serif;flex:0 0 auto}
.card-h h2{font:700 13px/1.2 Rajdhani,sans-serif;letter-spacing:.14em;text-transform:uppercase;color:var(--muted-fg)}
.card-b{padding:12px}
label,.lbl{display:block;font:700 12px/1.3 Rajdhani,sans-serif;letter-spacing:.1em;text-transform:uppercase;color:var(--muted-fg);margin:0 0 6px}
.hint{font-size:14px;color:var(--muted-fg);margin-top:8px}

input[type=text],select{width:100%;min-height:48px;font-size:17px;padding:10px 12px;border:1px solid var(--border);border-radius:8px;background:var(--input);color:var(--fg);appearance:none;-webkit-appearance:none}
select{background-image:linear-gradient(45deg,transparent 50%,#9aa0a8 50%),linear-gradient(135deg,#9aa0a8 50%,transparent 50%);background-position:calc(100% - 18px) 21px,calc(100% - 12px) 21px;background-size:6px 6px;background-repeat:no-repeat;padding-right:32px}
input::placeholder{color:hsl(220 5% 40%)}
input:focus,select:focus,.picker:focus-visible,button:focus-visible{outline:none;border-color:var(--o);box-shadow:0 0 0 3px rgba(232,93,4,.25)}

/* Optic picker */
.picker{width:100%;min-height:56px;display:flex;align-items:center;gap:10px;text-align:left;padding:8px 12px;border:1px solid var(--border);border-radius:8px;background:var(--input)}
.picker .pk-t{flex:1;min-width:0}
.picker .pk-m{display:block;font:600 12px/1.2 Rajdhani,sans-serif;letter-spacing:.1em;text-transform:uppercase;color:#f97316}
.picker .pk-n{display:block;font-size:17px;font-weight:600;line-height:1.25;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.picker svg{width:20px;height:20px;color:var(--muted-fg);flex:0 0 auto}
.spec{margin-top:10px;padding:9px 11px;background:var(--muted);border-left:3px solid var(--o);border-radius:4px;font-size:14px;color:hsl(36 8% 82%)}
.spec:empty{display:none}
.spec b{color:var(--fg)}
.warn{color:var(--warn);font-weight:700}
.grid3{display:grid;grid-template-columns:1fr 1fr;gap:10px;margin-top:12px}
.grid3 .u{grid-column:1/-1}
.grid2{display:grid;grid-template-columns:1fr;gap:12px}
@media(min-width:560px){.grid3{grid-template-columns:1fr 1fr 1.2fr}.grid3 .u{grid-column:auto}.grid2{grid-template-columns:1fr 1fr}}

/* Buttons */
.seg{display:flex;border:1px solid var(--border);border-radius:8px;overflow:hidden;background:var(--input)}
.seg button{flex:1;min-height:44px;border:0;background:transparent;color:var(--muted-fg);font:700 15px/1 Rajdhani,sans-serif;letter-spacing:.08em;text-transform:uppercase}
.seg button+button{border-left:1px solid var(--border)}
.seg button.on{background:var(--o);color:#fff}
.qd{display:grid;grid-template-columns:repeat(5,1fr);gap:6px;margin:10px 0 12px}
.qd.m{grid-template-columns:repeat(4,1fr)}
.qd button{min-height:44px;border:1px solid var(--border);border-radius:8px;background:var(--input);color:var(--fg);font:700 17px/1 Rajdhani,sans-serif}
.qd button.on{background:var(--o);border-color:var(--o);color:#fff}
.qd button:active{transform:scale(.97)}

/* Results */
.res{display:grid;grid-template-columns:1fr 1fr;gap:8px}
.box{background:#0b0c0e;border:1px solid var(--border);border-radius:8px;padding:10px 12px;min-width:0}
.box .k{font:700 11px/1.2 Rajdhani,sans-serif;letter-spacing:.12em;text-transform:uppercase;color:var(--muted-fg)}
.box .v{font:700 38px/1.05 Rajdhani,sans-serif;color:var(--o);margin-top:4px;font-variant-numeric:tabular-nums}
.box .v small{font-size:14px;color:var(--fg);font-weight:600;letter-spacing:.02em}
.box .s{font-size:13px;color:var(--muted-fg);margin-top:2px}
.sum{font-size:14px;color:hsl(36 8% 78%);margin-top:10px}
.sum:empty{display:none}
.corr{display:grid;grid-template-columns:1fr;gap:8px;margin-top:12px}
@media(min-width:560px){.corr{grid-template-columns:1fr 1fr}}
.dir{font:700 21px/1.2 Rajdhani,sans-serif;color:var(--fg);margin-top:4px}
.dir b{color:var(--o)}
.mt8{margin-top:8px}
.note{font-size:13px;color:var(--muted-fg);margin-top:10px}

.actions{display:flex;gap:8px}
.btn{flex:1;min-height:48px;display:flex;align-items:center;justify-content:center;gap:8px;border-radius:8px;font:700 16px/1 Rajdhani,sans-serif;letter-spacing:.08em;text-transform:uppercase;border:1px solid var(--border);background:transparent;color:var(--muted-fg)}
.btn.pri{background:var(--o);border-color:var(--o);color:#fff}
.btn svg{width:18px;height:18px}
.btn:active{transform:scale(.98)}

table{width:100%;border-collapse:collapse;font-size:15px;font-variant-numeric:tabular-nums}
th,td{padding:9px 12px;text-align:right;border-bottom:1px solid var(--border)}
th:first-child,td:first-child{text-align:left}
th{font:700 12px/1.2 Rajdhani,sans-serif;letter-spacing:.1em;text-transform:uppercase;color:var(--muted-fg);background:var(--muted)}
tr.cur td{background:rgba(232,93,4,.14);color:#fff;font-weight:700}
tr:last-child td{border-bottom:0}

.disc{font-size:13px;color:var(--muted-fg);padding:10px 12px;border-top:1px solid var(--border)}
footer{max-width:672px;margin:0 auto;padding:4px 16px calc(20px + env(safe-area-inset-bottom));text-align:center;font-size:13px;color:var(--muted-fg)}
footer nav{display:flex;flex-wrap:wrap;justify-content:center;gap:4px 14px;margin-bottom:6px}
footer a{display:inline-flex;align-items:center;min-height:36px;color:#f97316;text-decoration:none;font-weight:600}

/* Sticky result bar (phone only, hidden while results are on screen) */
.bar{position:fixed;left:0;right:0;bottom:0;z-index:30;display:flex;align-items:baseline;gap:6px;justify-content:center;flex-wrap:wrap;width:100%;min-height:52px;padding:10px calc(14px + env(safe-area-inset-right)) calc(10px + env(safe-area-inset-bottom)) calc(14px + env(safe-area-inset-left));background:rgba(0,0,0,.94);border:0;border-top:1px solid rgba(232,93,4,.5);color:var(--fg);transform:translateY(0);transition:transform .2s;-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px)}
.bar.hide{transform:translateY(110%)}
.bar .b-k{font:700 12px/1 Rajdhani,sans-serif;letter-spacing:.1em;color:var(--muted-fg)}
.bar .b-v{font:700 24px/1 Rajdhani,sans-serif;color:var(--o);font-variant-numeric:tabular-nums;margin-right:6px}
.bar .b-u{font:600 13px/1 Rajdhani,sans-serif;color:var(--fg)}
.bar .b-c{font:700 15px/1 Rajdhani,sans-serif;color:#fff;letter-spacing:.04em;margin-left:8px}
.bar .b-c:empty{display:none}
body.has-bar main{padding-bottom:calc(72px + env(safe-area-inset-bottom))}
@media(min-width:900px){.bar{display:none}body.has-bar main{padding-bottom:calc(16px + env(safe-area-inset-bottom))}}

/* Toast */
.toast{position:fixed;left:50%;bottom:calc(76px + env(safe-area-inset-bottom));transform:translate(-50%,20px);background:#111;border:1px solid var(--o);color:#fff;padding:10px 16px;border-radius:999px;font-weight:600;font-size:15px;opacity:0;pointer-events:none;transition:.2s;z-index:60;max-width:calc(100vw - 32px)}
.toast.show{opacity:1;transform:translate(-50%,0)}

/* Picker sheet */
.sheet{position:fixed;inset:0;z-index:50;display:none;flex-direction:column;background:var(--bg);padding-top:env(safe-area-inset-top);padding-left:env(safe-area-inset-left);padding-right:env(safe-area-inset-right)}
.sheet.open{display:flex}
.sh-top{max-width:672px;width:100%;margin:0 auto;display:flex;gap:8px;align-items:center;padding:10px 12px;border-bottom:1px solid var(--border);background:#000}
.sh-top input{flex:1;min-width:0}
.sh-top .btn{flex:0 0 auto;padding:0 14px}
.sh-list{flex:1;overflow-y:auto;-webkit-overflow-scrolling:touch;max-width:672px;width:100%;margin:0 auto;padding:0 0 calc(16px + env(safe-area-inset-bottom))}
.sh-g{position:sticky;top:0;background:hsl(220 13% 13%);padding:7px 14px;font:700 12px/1.2 Rajdhani,sans-serif;letter-spacing:.14em;text-transform:uppercase;color:#f97316;border-bottom:1px solid var(--border);z-index:1}
.sh-i{display:flex;width:100%;align-items:center;gap:10px;min-height:52px;padding:8px 14px;text-align:left;background:transparent;border:0;border-bottom:1px solid hsl(220 10% 16%)}
.sh-i .nm{flex:1;min-width:0;font-size:16px}
.sh-i .tg{flex:0 0 auto;font:700 11px/1 Rajdhani,sans-serif;letter-spacing:.1em;text-transform:uppercase;color:var(--muted-fg);border:1px solid var(--border);border-radius:4px;padding:4px 6px}
.sh-i .vl{flex:0 0 auto;font-size:13px;color:var(--muted-fg);font-variant-numeric:tabular-nums}
.sh-i.sel{background:rgba(232,93,4,.12)}
.sh-i.sel .nm{color:#fff;font-weight:700}
.sh-i.cust .nm{color:#f97316;font-weight:700}
.sh-empty{padding:24px 14px;color:var(--muted-fg);text-align:center}
@media(min-width:560px){.hdr-t h1{font-size:21px}.hdr-logo img{height:44px}.box .v{font-size:44px}}
@media(max-width:360px){.box .v{font-size:32px}.hdr-t h1{font-size:16px}}
@media(prefers-reduced-motion:reduce){*{transition:none!important;animation:none!important}}