/* ─────────────────────────────────────────────────
   BangMiles v9.0 — styles.css
   Single authoritative stylesheet. No patches.
   ───────────────────────────────────────────────── */

*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{font-size:16px;-webkit-text-size-adjust:100%}

/* ── Design tokens ──────────────────────────────── */
:root{
  --ink:#080809;
  --ink2:#0d0d11;
  --ink3:#131318;
  --border:#1e1e27;
  --border2:#2a2a36;
  --dim:#4a4a58;
  --muted:#8b8b99;
  --text:#f4f4f6;
  --text2:#c8c8d4;
  --lime:#c8ff00;
  --lime2:#aadd00;
  --limefade:rgba(200,255,0,0.07);
  --limeglow:rgba(200,255,0,0.22);
  --amber:#f59e0b;
  --amberfade:rgba(245,158,11,0.08);
  --f-display:'Anton',sans-serif;
  --f-ui:'Syne',sans-serif;
  --f-mono:'IBM Plex Mono',monospace;
  --safe-b:env(safe-area-inset-bottom,0px);
  --w:960px;
  --radius:10px;
  --radius-sm:6px;
  --radius-lg:14px;
  --transition:150ms cubic-bezier(.23,1,.32,1);
  --g:clamp(16px,3vw,32px);
}

body{
  font-family:var(--f-ui);background:var(--ink);color:var(--text);
  min-height:100vh;padding-bottom:calc(90px + var(--safe-b));overflow-x:hidden;
}

/* ── Keyframes ────────────────────────────────── */
@keyframes blink{0%,100%{opacity:1}50%{opacity:.3}}
@keyframes verdictIn{from{opacity:0;transform:translateY(6px)}to{opacity:1;transform:translateY(0)}}
@keyframes meterPulse{0%,100%{box-shadow:0 0 8px var(--limeglow)}50%{box-shadow:0 0 22px rgba(200,255,0,.5)}}
@keyframes chipBounce{0%{transform:scale(1)}45%{transform:scale(1.35)}100%{transform:scale(1)}}
@keyframes chipCheckIn{from{transform:scale(0);opacity:0}to{transform:scale(1);opacity:1}}
@keyframes chipNewHit{0%{transform:scale(1)}40%{transform:scale(1.08)}100%{transform:scale(1)}}
@keyframes slideUp{from{transform:translateY(100%);opacity:0}to{transform:translateY(0);opacity:1}}
@keyframes modalIn{from{transform:translate(-50%,-48%);opacity:0}to{transform:translate(-50%,-50%);opacity:1}}
@keyframes statIn{from{opacity:0;transform:translateY(4px)}to{opacity:1;transform:translateY(0)}}
@keyframes shimmer{0%{background-position:200% center}100%{background-position:-200% center}}

/* ── Reduced motion ── */
@media(prefers-reduced-motion:reduce){
  *,*::before,*::after{animation-duration:.01ms!important;animation-iteration-count:1!important;transition-duration:.01ms!important}
  .meter-fill{transition:none!important}
  .status-dot{animation:none;opacity:1}
}

/* ── Focus visible — keyboard only, not mouse ── */
:focus{outline:none}
:focus-visible{outline:2px solid var(--lime);outline-offset:2px;border-radius:4px}

/* ═══════════════ HEADER ═══════════════════════ */
.site-header{
  display:flex;align-items:stretch;justify-content:space-between;
  padding:0 var(--g);border-bottom:1px solid var(--border);
  background:rgba(9,9,11,.97);backdrop-filter:blur(16px);-webkit-backdrop-filter:blur(16px);
  position:sticky;top:0;z-index:100;height:56px;
}
/* On wide viewports, cap header content width to match content column */
@media(min-width:1100px){
  .site-header{
    padding:0 calc((100% - var(--w)) / 2 + var(--g));
  }
}
.brand-block{
  display:flex;align-items:center;gap:12px;
  padding:12px 16px 12px 0;border-right:1px solid var(--border);margin-right:auto;
}
.logo-mark{
  width:34px;height:34px;background:var(--lime);border-radius:6px;
  display:flex;align-items:center;justify-content:center;
  font-family:var(--f-display);font-size:13px;color:var(--ink);flex-shrink:0;
}
.brand-text h1{font-family:var(--f-display);font-size:18px;letter-spacing:.06em;line-height:1;color:var(--text)}
.brand-text .sub{font-family:var(--f-mono);font-size:9px;color:var(--dim);text-transform:uppercase;letter-spacing:.12em;margin-top:3px}
.header-right{display:flex;align-items:center;padding-left:16px;margin-left:auto;gap:8px}
.profile-active-name{font-family:var(--f-mono);font-size:10px;color:var(--muted);white-space:nowrap;overflow:hidden;text-overflow:ellipsis;max-width:160px}
@media(max-width:400px){.profile-active-name{display:none}}
.status-badge{display:inline-flex;align-items:center;gap:6px;font-family:var(--f-mono);font-size:11px;color:var(--muted);text-transform:uppercase;letter-spacing:.08em}
.status-dot{width:6px;height:6px;border-radius:50%;background:var(--lime);box-shadow:0 0 6px var(--lime);animation:blink 2s ease-in-out infinite;flex-shrink:0}

/* ═══════════════ HERO ═════════════════════════ */
.hero-section{
  padding:clamp(28px,5vw,60px) var(--g) clamp(24px,4vw,48px);
  border-bottom:1px solid var(--border);background:var(--ink2);
  position:relative;overflow:hidden;
}
.hero-section::before{
  content:'';position:absolute;inset:0;
  background-image:linear-gradient(var(--border) 1px,transparent 1px),linear-gradient(90deg,var(--border) 1px,transparent 1px);
  background-size:48px 48px;opacity:.25;pointer-events:none;
}
.hero-section::after{
  content:'';position:absolute;inset:0;
  background:radial-gradient(ellipse 60% 100% at 50% 110%,rgba(200,255,0,.05),transparent);
  pointer-events:none;
}
.hero-inner{position:relative;z-index:1;max-width:var(--w);margin:0 auto;display:flex;flex-direction:column}

.hero-intro{margin-bottom:20px}
.hero-intro-title{font-family:var(--f-display);font-size:clamp(22px,5vw,36px);letter-spacing:.04em;color:var(--text);line-height:1.1;margin-bottom:8px}
.hero-intro-sub{font-family:var(--f-mono);font-size:13px;color:var(--dim);letter-spacing:.04em}

.result-eyebrow{font-family:var(--f-mono);font-size:10px;text-transform:uppercase;letter-spacing:.16em;color:var(--lime);margin-bottom:10px;display:flex;align-items:center;gap:10px;order:0}
.result-eyebrow::after{content:'';flex:1;height:1px;background:linear-gradient(90deg,var(--border2),transparent)}
.result-number{
  font-family:var(--f-display);font-size:clamp(52px,13vw,110px);
  line-height:.9;letter-spacing:.02em;color:var(--text);
  display:flex;align-items:flex-end;gap:12px;flex-wrap:wrap;
  min-height:clamp(50px,12vw,105px);order:1;margin-bottom:12px;
}
#headline{display:inline-block;min-width:2ch;transition:opacity 150ms}
.result-unit{font-family:var(--f-mono);font-size:clamp(16px,4vw,24px);color:var(--muted);padding-bottom:6px;letter-spacing:.04em;display:none;align-self:flex-end}
.result-subtext{font-family:var(--f-mono);font-size:12px;color:var(--muted);line-height:1.6;order:2}
.verdict-ribbon{
  display:none;order:3;margin-top:16px;max-width:760px;
  padding:14px 18px;
  background:rgba(200,255,0,.06);
  border-left:3px solid var(--lime);border-top:1px solid rgba(200,255,0,.18);
  border-right:1px solid rgba(200,255,0,.18);border-bottom:1px solid rgba(200,255,0,.18);
  border-radius:0 6px 6px 0;
  font-family:var(--f-display);font-size:clamp(16px,5vw,22px);letter-spacing:.03em;color:var(--lime);
  animation:verdictIn 350ms cubic-bezier(.23,1,.32,1) both;
  line-height:1.25;
}
.fun-fact{
  order:4;margin-top:12px;
  font-family:var(--f-mono);font-size:11px;color:var(--text2);line-height:1.5;
  padding:10px 14px;
  background:rgba(245,158,11,.07);border-left:2px solid rgba(245,158,11,.55);border-radius:0 4px 4px 0;
  letter-spacing:.02em;
}
.meter-wrap{order:5;margin-top:18px}
.meter-track{height:6px;background:var(--border2);border-radius:3px;overflow:hidden}
.meter-fill{
  height:100%;width:0%;
  background:linear-gradient(90deg,var(--lime3,#8ec400),var(--lime));
  border-radius:3px;transition:width 600ms cubic-bezier(.23,1,.32,1);
  box-shadow:0 0 12px var(--limeglow);
}
.meter-fill.full{animation:meterPulse 1.8s ease-in-out infinite}
.meter-labels{display:flex;justify-content:space-between;font-family:var(--f-mono);font-size:9px;color:var(--dim);text-transform:uppercase;letter-spacing:.06em;margin-top:7px}
.meter-label-item{transition:color 300ms}
.meter-label-item.active{color:var(--lime)}

/* ═══════════════ COMPARE ══════════════════════ */
.compare-section{
  background:var(--ink2);border-bottom:1px solid var(--border);
  padding:14px var(--g);
  opacity:0;transform:translateY(8px);transition:opacity 280ms ease,transform 280ms ease;
}
.compare-section.revealed{opacity:1;transform:translateY(0)}
.compare-inner{max-width:var(--w);margin:0 auto}
.compare-label{font-family:var(--f-mono);font-size:9px;text-transform:uppercase;letter-spacing:.16em;color:var(--dim);margin-bottom:10px}
.compare-list{display:flex;flex-wrap:wrap;gap:8px}
.compare-chip{
  position:relative;overflow:hidden;
  display:flex;align-items:center;gap:7px;
  background:var(--ink3);border:1px solid var(--border);border-radius:6px;
  padding:10px 12px;font-family:var(--f-mono);font-size:12px;color:var(--muted);
  min-height:44px;transition:border-color 200ms,background 200ms,color 200ms,transform 100ms;
  cursor:default;
}
.compare-chip:hover{border-color:var(--border2);background:var(--ink2)}
.compare-chip.hit{border-color:rgba(200,255,0,.35);background:rgba(200,255,0,.06);color:var(--text)}
.compare-chip.hit:hover{border-color:rgba(200,255,0,.55);background:rgba(200,255,0,.1)}
.compare-chip.hit .chip-icon{animation:chipBounce 400ms cubic-bezier(.23,1,.32,1)}
.compare-chip.chip-new{animation:chipNewHit 400ms cubic-bezier(.23,1,.32,1)}
.chip-exceeded{
  position:absolute;top:3px;right:3px;width:13px;height:13px;border-radius:50%;
  background:var(--lime);display:flex;align-items:center;justify-content:center;
  font-size:8px;color:var(--ink);font-weight:700;line-height:1;
  animation:chipCheckIn 300ms cubic-bezier(.23,1,.32,1) both;
}
.chip-icon{font-size:15px;line-height:1;flex-shrink:0}
.chip-val{color:var(--lime);font-weight:500}

/* ═══════════════ BANNERS ══════════════════════ */
.challenge-banner{
  background:linear-gradient(135deg,rgba(200,255,0,.07),rgba(200,255,0,.02));
  border-bottom:2px solid var(--lime);padding:20px var(--g);
}
.challenge-banner-inner{max-width:var(--w);margin:0 auto}
.challenge-eyebrow{font-family:var(--f-mono);font-size:10px;text-transform:uppercase;letter-spacing:.16em;color:var(--lime);margin-bottom:6px}
.challenge-headline{font-family:var(--f-display);font-size:clamp(18px,4vw,28px);color:var(--text);letter-spacing:.04em;line-height:1.2;margin-bottom:4px}
.challenge-sub{font-family:var(--f-mono);font-size:12px;color:var(--muted)}

.milestone-strip{
  background:linear-gradient(90deg,rgba(245,158,11,.06),transparent);
  border-top:1px solid var(--border);border-bottom:1px solid rgba(245,158,11,.22);
  padding:14px var(--g);display:flex;align-items:center;gap:12px;
  font-family:var(--f-mono);font-size:13px;color:var(--text2);line-height:1.4;
}
.milestone-strip strong{color:var(--amber);font-weight:600}
.ms-icon{font-size:20px;flex-shrink:0;filter:drop-shadow(0 0 8px rgba(245,158,11,.6))}

/* ═══════════════ MAIN WRAP ════════════════════ */
.main-wrap{max-width:var(--w);margin:0 auto;padding:0 var(--g)}

/* ─── Profile ──────────────────────────────── */
.profile-details{margin:0 calc(-1 * var(--g));border-bottom:1px solid var(--border)}
.profile-summary{
  display:flex;align-items:center;gap:10px;padding:12px var(--g);
  cursor:pointer;list-style:none;background:var(--ink2);
  user-select:none;-webkit-user-select:none;-webkit-tap-highlight-color:transparent;
}
.profile-summary::-webkit-details-marker{display:none}
.profile-summary-icon{font-size:16px;flex-shrink:0}
.profile-summary-text{font-family:var(--f-mono);font-size:12px;color:var(--muted);flex:1;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.profile-summary-chev{color:var(--dim);font-size:14px;transition:transform 200ms;flex-shrink:0}
.profile-details[open] .profile-summary-chev{transform:rotate(90deg)}
.profile-details[open] .profile-summary{background:var(--ink3)}
.profile-body{padding:20px var(--g)}
.profile-fields{display:grid;grid-template-columns:1fr 1fr;gap:12px;margin-bottom:14px}
@media(max-width:480px){.profile-fields{grid-template-columns:1fr}}
.profile-field{display:flex;flex-direction:column;gap:5px}
.profile-label{font-family:var(--f-mono);font-size:10px;text-transform:uppercase;letter-spacing:.12em;color:var(--dim)}
.profile-input{background:var(--ink3);border:1px solid var(--border2);border-radius:6px;color:var(--text);font-family:var(--f-mono);font-size:14px;padding:10px 12px;min-height:44px;-webkit-appearance:none;appearance:none}
.profile-input:focus{outline:none;border-color:var(--lime)}
.profile-actions{display:flex;align-items:center;gap:8px;flex-wrap:wrap}
.btn-profile-save{font-family:var(--f-mono);font-size:11px;text-transform:uppercase;letter-spacing:.1em;background:var(--lime);color:var(--ink);border:none;border-radius:6px;padding:10px 18px;min-height:44px;cursor:pointer;-webkit-tap-highlight-color:transparent}
.btn-profile-save:hover{opacity:.88}
.btn-profile-clear{font-family:var(--f-mono);font-size:11px;text-transform:uppercase;letter-spacing:.1em;background:transparent;color:var(--dim);border:1px solid var(--border);border-radius:6px;padding:10px 14px;min-height:44px;cursor:pointer;-webkit-tap-highlight-color:transparent}
.btn-profile-clear:hover{color:var(--muted);border-color:var(--border2)}
.btn-ics{font-family:var(--f-mono);font-size:11px;letter-spacing:.06em;background:transparent;color:var(--muted);border:1px solid var(--border2);border-radius:6px;padding:10px 14px;min-height:44px;cursor:pointer;white-space:nowrap;-webkit-tap-highlight-color:transparent}
.btn-ics:hover{color:var(--text);border-color:var(--muted)}
.profile-ics-wrap{display:none}
.profile-hint{margin-top:10px;font-family:var(--f-mono);font-size:10px;color:var(--dim)}

/* ─── Mode tabs ─────────────────────────────── */
.mode-tabs{
  display:flex;border-bottom:1px solid var(--border);
  margin:0 calc(-1 * var(--g));padding:0 var(--g);
  background:var(--ink2);overflow-x:auto;scrollbar-width:none;
}
.mode-tabs::-webkit-scrollbar{display:none}
.mode-tab-input{display:none}
.mode-tab-label{
  padding:16px 18px;min-height:52px;
  font-family:var(--f-mono);font-size:11px;text-transform:uppercase;letter-spacing:.1em;color:var(--dim);
  cursor:pointer;border-bottom:2px solid transparent;margin-bottom:-1px;
  transition:color 150ms,border-color 150ms;user-select:none;
  display:flex;align-items:center;gap:7px;white-space:nowrap;
  -webkit-tap-highlight-color:transparent;
}
@media(max-width:480px){.mode-tab-label{flex:1;justify-content:center;padding:15px 10px}}
.tab-key{width:17px;height:17px;border-radius:3px;background:var(--border);display:inline-flex;align-items:center;justify-content:center;font-size:9px;transition:background 150ms,color 150ms;flex-shrink:0}
.mode-tab-input:checked+.mode-tab-label{color:var(--text);border-bottom-color:var(--lime)}
.mode-tab-input:checked+.mode-tab-label .tab-key{background:var(--lime);color:var(--ink)}
.mode-tab-anniv .tab-key{background:transparent;font-size:13px;width:20px;height:20px}
#modeAnniv:checked+.mode-tab-anniv{color:var(--lime);border-bottom-color:var(--lime)}
#modeAnniv:checked+.mode-tab-anniv .tab-key{background:transparent}

/* ─── Section label ──────────────────────────── */
.section-label{font-family:var(--f-mono);font-size:9px;text-transform:uppercase;letter-spacing:.2em;color:var(--muted);font-weight:600;margin-bottom:14px}

/* ─── Inputs ─────────────────────────────────── */
.inputs-section{padding:24px 0;border-bottom:1px solid var(--border)}
.fields-grid{display:grid;grid-template-columns:1fr 1fr;gap:12px}
@media(min-width:640px){.fields-grid{grid-template-columns:repeat(3,1fr)}}
@media(max-width:479px){.fields-grid{grid-template-columns:1fr}}

.field-box{
  background:var(--ink2);border:1px solid var(--border);border-radius:10px;
  padding:16px;display:flex;flex-direction:column;gap:8px;
  transition:border-color 200ms,box-shadow 200ms;position:relative;
}
.field-box:focus-within{border-color:rgba(200,255,0,.35);box-shadow:0 0 0 3px rgba(200,255,0,.05);}
@media(max-width:479px){.field-box{padding:14px 12px}}
.field-box-anniv{border-color:rgba(200,255,0,.2);background:linear-gradient(135deg,var(--ink2) 80%,rgba(200,255,0,.03))}
.field-box-anniv .field-label{color:var(--muted)}
.field-box-anniv input[type=date]{color:var(--lime)}
.field-label{font-family:var(--f-mono);font-size:9px;text-transform:uppercase;letter-spacing:.12em;color:var(--dim);display:flex;justify-content:space-between;align-items:center;gap:6px}
.field-hint{font-style:italic;text-transform:none;letter-spacing:0;font-size:10px;color:var(--border2)}
.field-sub{font-size:11px;color:var(--dim);font-family:var(--f-mono);line-height:1.4}
.input-slider-wrap{display:flex;flex-direction:column;gap:8px}
.number-row{display:flex;align-items:baseline;gap:6px}

input[type=number],input[type=text]{background:transparent;border:none;outline:none;color:var(--text);font-family:var(--f-mono);font-size:22px;font-weight:500;width:100%;line-height:1;-webkit-appearance:none;appearance:none}
input[type=date]{background:transparent;border:none;outline:none;color:var(--text);font-family:var(--f-mono);font-size:16px;font-weight:500;width:100%;-webkit-appearance:none;appearance:auto;min-height:48px;padding:4px 0;cursor:pointer}
input[type=date]::-webkit-calendar-picker-indicator{filter:invert(1) opacity(.45);cursor:pointer;padding:10px 4px;margin:-10px -4px}
input[type=number]{max-width:140px}
.number-unit-label{font-family:var(--f-mono);font-size:13px;color:var(--dim);white-space:nowrap}
select{background:transparent;border:none;outline:none;color:var(--text);font-family:var(--f-mono);font-size:16px;font-weight:500;width:100%;cursor:pointer;-webkit-appearance:none;appearance:none;background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='10' height='6'%3E%3Cpath fill='%2352525e' d='M5 6L0 0h10z'/%3E%3C/svg%3E");background-repeat:no-repeat;background-position:right 2px center;padding-right:18px;min-height:44px}
input::placeholder{color:var(--border2)}

input[type=range]{
  -webkit-appearance:none;appearance:none;
  width:100%;height:4px;
  background:linear-gradient(to right,var(--lime) 0%,var(--lime) var(--range-fill,0%),var(--border2) var(--range-fill,0%),var(--border2) 100%);
  border-radius:2px;outline:none;cursor:pointer;touch-action:pan-y;margin:6px 0;
}
input[type=range]::-webkit-slider-thumb{-webkit-appearance:none;width:22px;height:22px;border-radius:50%;background:var(--lime);cursor:pointer;box-shadow:0 0 0 3px var(--ink2),0 0 0 5px var(--lime);transition:transform 120ms;margin-top:-9px}
input[type=range]::-webkit-slider-thumb:active{transform:scale(1.12)}
input[type=range]::-moz-range-thumb{width:22px;height:22px;border-radius:50%;border:none;background:var(--lime);cursor:pointer}
input[type=range]::-webkit-slider-runnable-track{height:4px;border-radius:2px}

.tooltip-wrap{position:relative;display:inline-flex;align-items:center;margin-left:6px}
.tooltip-trigger{width:24px;height:24px;border-radius:50%;background:var(--border2);display:inline-flex;align-items:center;justify-content:center;font-family:var(--f-mono);font-size:10px;color:var(--dim);cursor:pointer;border:1px solid var(--border);flex-shrink:0;-webkit-tap-highlight-color:transparent}
.tooltip-trigger:focus{outline:2px solid var(--border2);background:var(--border);color:var(--muted)}
.tooltip-box{display:none;position:absolute;bottom:calc(100% + 8px);right:0;left:auto;background:var(--ink2);border:1px solid var(--border2);border-radius:6px;padding:11px 13px;font-family:var(--f-mono);font-size:11px;color:var(--text2);line-height:1.5;width:min(220px,calc(100vw - 32px));z-index:300;pointer-events:none;box-shadow:0 8px 24px rgba(0,0,0,.6)}
.tooltip-box::after{content:'';position:absolute;top:100%;right:8px;border:5px solid transparent;border-top-color:var(--border2)}
.tooltip-wrap:hover .tooltip-box,.tooltip-trigger:focus + .tooltip-box,.tooltip-wrap:focus-within .tooltip-box{display:block}

.presets-row{display:flex;gap:6px;margin-top:4px}
.preset-btn{flex:1;border:1px solid var(--border2);background:transparent;border-radius:6px;padding:0;min-height:40px;font-family:var(--f-mono);font-size:10px;color:var(--dim);cursor:pointer;text-transform:uppercase;letter-spacing:.07em;transition:all 120ms;display:flex;align-items:center;justify-content:center;-webkit-tap-highlight-color:transparent}
.preset-btn:active,.preset-btn:hover{border-color:var(--lime);color:var(--lime);background:var(--limefade)}

.alert{display:none;padding:11px 14px;border-radius:6px;font-family:var(--f-mono);font-size:12px;line-height:1.6;margin-top:10px}
.alert-error{background:rgba(239,68,68,.08);border:1px solid rgba(239,68,68,.22);color:#f87171}
.alert-warn{background:rgba(245,158,11,.08);border:1px solid rgba(245,158,11,.25);color:#fbbf24}

/* ─── Advanced ───────────────────────────────── */
details.adv{border-top:1px solid var(--border);margin:0 calc(-1 * var(--g));padding:0 var(--g);background:var(--ink)}
details.adv summary{list-style:none;display:flex;align-items:center;gap:10px;padding:14px 0;min-height:52px;cursor:pointer;font-family:var(--f-mono);font-size:10px;text-transform:uppercase;letter-spacing:.12em;color:var(--dim);user-select:none;transition:color 150ms;-webkit-tap-highlight-color:transparent}
details.adv summary::-webkit-details-marker{display:none}
details.adv summary:hover{color:var(--muted)}
.chev{display:inline-block;transition:transform 200ms;font-size:12px;color:var(--border2)}
details.adv[open] .chev{transform:rotate(90deg);color:var(--lime)}
.adv-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:12px;padding-bottom:20px}
@media(min-width:640px){.adv-grid{grid-template-columns:repeat(4,1fr)}}
@media(max-width:479px){.adv-grid{grid-template-columns:1fr}}

/* ═══════════════ ACTION BAR ════════════════════ */
.action-bar{
  display:flex;align-items:center;gap:10px;
  padding:18px 0;border-bottom:1px solid var(--border);
  flex-wrap:nowrap;
}
.action-bar-spacer{flex:1}

.btn-calc{
  font-family:var(--f-display);font-size:18px;letter-spacing:.1em;
  background:var(--lime);color:var(--ink);border:none;border-radius:8px;
  padding:14px 28px;min-height:52px;min-width:160px;
  cursor:pointer;transition:background 150ms,box-shadow 150ms,transform 80ms;white-space:nowrap;
  display:flex;align-items:center;justify-content:center;flex:0 0 auto;
  -webkit-tap-highlight-color:transparent;
}
.btn-calc:hover{background:#d4ff1a;box-shadow:0 0 20px var(--limeglow)}
.btn-calc:active{transform:scale(.98);box-shadow:none;background:var(--lime2)}

.btn-share{
  font-family:var(--f-mono);font-size:12px;letter-spacing:.1em;text-transform:uppercase;
  background:transparent;color:var(--lime);border:1px solid rgba(200,255,0,.5);border-radius:8px;
  padding:12px 18px;min-height:52px;cursor:pointer;transition:all 150ms;white-space:nowrap;
  display:flex;align-items:center;justify-content:center;gap:6px;flex:0 0 auto;
  -webkit-tap-highlight-color:transparent;
}
.btn-share:hover{background:rgba(200,255,0,.08);border-color:var(--lime);box-shadow:0 0 16px rgba(200,255,0,.15)}
.btn-share:active{transform:scale(.97)}

.btn-challenge{
  font-family:var(--f-mono);font-size:11px;text-transform:uppercase;letter-spacing:.08em;
  background:transparent;color:var(--lime);border:1px solid rgba(200,255,0,.3);border-radius:6px;
  padding:10px 16px;min-height:48px;cursor:pointer;white-space:nowrap;
  transition:all 120ms;flex:0 0 auto;-webkit-tap-highlight-color:transparent;
}
.btn-challenge:hover,.btn-challenge:active{background:var(--limefade);border-color:var(--lime)}

.btn-secondary{
  font-family:var(--f-mono);font-size:11px;letter-spacing:.08em;text-transform:uppercase;
  background:var(--ink3);color:var(--muted);border:1px solid var(--border2);border-radius:8px;
  padding:12px 16px;min-height:48px;cursor:pointer;transition:all 150ms;white-space:nowrap;
  display:flex;align-items:center;flex:0 0 auto;-webkit-tap-highlight-color:transparent;
}
.btn-secondary:active,.btn-secondary:hover{color:var(--text);border-color:var(--muted)}

.btn-ghost{
  font-family:var(--f-mono);font-size:11px;letter-spacing:.08em;text-transform:uppercase;
  background:transparent;color:var(--dim);border:1px solid var(--border);border-radius:8px;
  padding:12px 16px;min-height:48px;cursor:pointer;transition:all 150ms;white-space:nowrap;
  display:flex;align-items:center;flex:0 0 auto;-webkit-tap-highlight-color:transparent;
}
.btn-ghost:active,.btn-ghost:hover{color:var(--muted);border-color:var(--border2)}

@media(max-width:640px){
  .action-bar{
    position:sticky;bottom:0;z-index:50;
    background:rgba(9,9,11,.97);
    backdrop-filter:blur(20px);-webkit-backdrop-filter:blur(20px);
    margin:0 calc(-1 * var(--g));
    padding:12px var(--g) calc(12px + var(--safe-b));
    border-top:1px solid var(--border);border-bottom:none;
    flex-wrap:wrap;gap:8px;
  }
  .btn-calc{flex:1 1 100%;min-width:0}
  .btn-share,.btn-challenge,.btn-secondary,.btn-ghost{flex:1;justify-content:center;padding:12px 8px;min-height:44px;font-size:10px}
  .action-bar-spacer{display:none}
}

/* ─── Challenge prompt ───────────────────────── */
.challenge-cta{
  display:none;
  background:linear-gradient(135deg,rgba(200,255,0,.08) 0%,rgba(200,255,0,.02) 100%);
  border:1px solid rgba(200,255,0,.22);
  border-radius:10px;
  margin:4px 0 0;
  box-shadow:inset 0 1px 0 rgba(200,255,0,.08);
}
.challenge-cta-inner{
  display:flex;align-items:center;justify-content:space-between;
  gap:16px;flex-wrap:wrap;
  padding:18px 20px;
}
.challenge-cta-title{
  font-family:var(--f-display);font-size:clamp(15px,3vw,18px);
  letter-spacing:.04em;color:var(--text);margin-bottom:3px;
}
.challenge-cta-sub{
  font-family:var(--f-mono);font-size:11px;color:var(--dim);
}
.btn-challenge-cta{
  font-family:var(--f-mono);font-size:12px;text-transform:uppercase;letter-spacing:.1em;
  background:var(--lime);color:var(--ink);
  border:none;border-radius:7px;
  padding:12px 20px;min-height:44px;
  cursor:pointer;white-space:nowrap;flex-shrink:0;
  transition:opacity 150ms;
  -webkit-tap-highlight-color:transparent;
}
.btn-challenge-cta:hover{opacity:.88}
.btn-challenge-cta:active{opacity:.75}

/* ═══════════════ STATS ════════════════════════ */
.stats-section{
  padding:24px 0;border-bottom:1px solid var(--border);display:none;
  opacity:0;transform:translateY(8px);transition:opacity 280ms ease,transform 280ms ease;
}
.stats-section.revealed{opacity:1;transform:translateY(0)}
.stats-grid{
  display:grid;grid-template-columns:repeat(2,1fr);
  gap:1px;background:var(--border);
  border:1px solid var(--border);border-radius:10px;overflow:hidden;margin-top:14px;
}
@media(min-width:480px){.stats-grid{grid-template-columns:repeat(3,1fr)}}
@media(min-width:640px){.stats-grid{grid-template-columns:repeat(4,1fr)}}
@media(min-width:860px){.stats-grid{grid-template-columns:repeat(5,1fr)}}
.stat-cell{background:var(--ink2);padding:16px 14px;display:flex;flex-direction:column;gap:3px;animation:statIn 300ms cubic-bezier(.23,1,.32,1) both}
.stat-cell:nth-child(2){animation-delay:40ms}
.stat-cell:nth-child(3){animation-delay:80ms}
.stat-cell:nth-child(4){animation-delay:120ms}
.stat-cell:nth-child(5){animation-delay:160ms}
.stat-cell:nth-child(6){animation-delay:200ms}
.stat-cell:nth-child(7){animation-delay:240ms}
.stat-cell:nth-child(8){animation-delay:280ms}
.stat-val{font-family:var(--f-mono);font-size:16px;font-weight:500;color:var(--text);line-height:1}
.stat-val.hi{color:var(--lime);font-size:21px;font-weight:600}
.stat-key{font-family:var(--f-mono);font-size:9px;text-transform:uppercase;letter-spacing:.08em;color:var(--dim)}

/* ═══════════════ MATHS ════════════════════════ */
.maths-section{
  padding:16px 0;border-bottom:1px solid var(--border);display:none;
  opacity:0;transform:translateY(8px);transition:opacity 280ms ease,transform 280ms ease;
}
.maths-section.revealed{opacity:1;transform:translateY(0)}
details.math-det summary{list-style:none;display:flex;align-items:center;gap:10px;min-height:48px;cursor:pointer;font-family:var(--f-mono);font-size:10px;text-transform:uppercase;letter-spacing:.12em;color:var(--dim);user-select:none;transition:color 150ms;-webkit-tap-highlight-color:transparent}
details.math-det summary::-webkit-details-marker{display:none}
details.math-det summary:hover{color:var(--muted)}
details.math-det[open] .chev{transform:rotate(90deg);color:var(--lime)}
.math-block{margin-top:12px;background:var(--ink3);border:1px solid var(--border);border-radius:6px;padding:14px 16px;font-family:var(--f-mono);font-size:11px;color:var(--text2);line-height:1.8;overflow-x:auto;-webkit-overflow-scrolling:touch;white-space:pre}
.math-block em{color:var(--lime);font-style:normal}

/* ═══════════════ LEADERBOARD ══════════════════ */
.leaderboard-section{margin-top:24px;border:1px solid var(--border);border-radius:10px;overflow:hidden}
.leaderboard-header{display:flex;align-items:center;justify-content:space-between;padding:14px 20px;background:var(--ink2);border-bottom:1px solid var(--border)}
.btn-lb-refresh{width:36px;height:36px;border-radius:6px;background:transparent;border:1px solid var(--border);color:var(--dim);font-size:16px;cursor:pointer;display:flex;align-items:center;justify-content:center;transition:all 120ms;-webkit-tap-highlight-color:transparent;min-width:36px}
.btn-lb-refresh:hover,.btn-lb-refresh:active{color:var(--lime);border-color:rgba(200,255,0,.3)}
.lb-submit-wrap{background:linear-gradient(135deg,var(--ink2),rgba(200,255,0,.04));border-bottom:1px solid rgba(200,255,0,.14);padding:16px 20px}
.lb-result-preview{font-family:var(--f-mono);font-size:12px;color:var(--lime);margin-bottom:10px;line-height:1.4}
.lb-form-row{display:flex;gap:8px;flex-wrap:wrap}
.lb-name-input{flex:1;min-width:140px;background:var(--ink3);border:1px solid var(--border2);border-radius:6px;color:var(--text);font-family:var(--f-mono);font-size:14px;padding:10px 12px;min-height:44px;-webkit-appearance:none;appearance:none}
.lb-name-input:focus{outline:none;border-color:var(--lime)}
.btn-lb-submit{font-family:var(--f-mono);font-size:11px;text-transform:uppercase;letter-spacing:.1em;background:var(--lime);color:var(--ink);border:none;border-radius:6px;padding:10px 20px;min-height:44px;cursor:pointer;white-space:nowrap;flex-shrink:0;transition:opacity 150ms,transform 80ms;-webkit-tap-highlight-color:transparent}
.btn-lb-submit:disabled{opacity:.5;cursor:not-allowed}
.btn-lb-submit:not(:disabled):hover{opacity:.88}
.btn-lb-submit:not(:disabled):active{transform:scale(.97)}
.lb-privacy-note{margin-top:8px;font-family:var(--f-mono);font-size:10px;color:var(--dim);line-height:1.6;display:flex;align-items:center;gap:5px}
.lb-privacy-note::before{content:'🔒';font-size:10px}
.lb-status{padding:8px 20px;font-family:var(--f-mono);font-size:12px;min-height:0;transition:all 200ms}
.lb-status:empty{padding:0}
.lb-status-ok{color:var(--lime)}
.lb-status-err{color:#ff6b6b}
.lb-loading{padding:24px;text-align:center;font-family:var(--f-mono);font-size:12px;color:var(--dim);letter-spacing:.1em}
.lb-table-wrap{overflow-x:auto}
.lb-table{width:100%;border-collapse:collapse;table-layout:auto}
.lb-th{font-family:var(--f-mono);font-size:9px;text-transform:uppercase;letter-spacing:.14em;color:var(--dim);padding:10px 16px;text-align:left;border-bottom:1px solid var(--border);white-space:nowrap;background:var(--ink2)}
.lb-th-rank{width:48px;text-align:center}.lb-th-miles{text-align:right}
.lb-th-date{text-align:right;display:none}
@media(min-width:480px){.lb-th-date{display:table-cell}}
.lb-td{padding:11px 16px;font-family:var(--f-mono);font-size:13px;color:var(--text2);border-bottom:1px solid var(--border);vertical-align:middle}
.lb-td-rank{text-align:center;font-size:16px;color:var(--muted);width:48px}
.lb-td-name{word-break:break-word}.lb-td-miles{text-align:right;white-space:nowrap}
.lb-td-date{text-align:right;font-size:11px;color:var(--dim);display:none}
@media(min-width:480px){.lb-td-date{display:table-cell}}
.lb-miles{color:var(--lime);font-weight:600}.lb-label{color:var(--dim);font-size:11px}
.lb-footer{text-align:center;font-size:11px;color:var(--dim);padding:10px}
.lb-row-top{background:rgba(200,255,0,.03)}
.lb-row{transition:background 120ms}
.lb-row:hover{background:var(--ink3)}
.lb-row:last-child .lb-td{border-bottom:none}
.lb-td-rank{text-align:center;font-size:16px;color:var(--muted);width:48px;line-height:1}
.lb-empty{padding:32px;text-align:center;font-family:var(--f-mono);font-size:12px;color:var(--dim)}

/* ═══════════════ SHARE ════════════════════════ */
.share-section{padding:20px 0;border-bottom:1px solid var(--border)}
.share-row{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-bottom:8px;flex-wrap:wrap}
.share-label{font-family:var(--f-mono);font-size:9px;text-transform:uppercase;letter-spacing:.14em;color:var(--dim)}
.share-actions{display:flex;align-items:center;gap:8px;flex-wrap:wrap}
.share-badge{font-family:var(--f-mono);font-size:10px;text-transform:uppercase;letter-spacing:.1em;padding:10px 14px;border:1px solid rgba(200,255,0,.22);border-radius:4px;color:var(--lime);background:var(--limefade);cursor:pointer;transition:background 150ms;min-height:44px;display:inline-flex;align-items:center;-webkit-tap-highlight-color:transparent}
.share-badge:active,.share-badge:hover{background:rgba(200,255,0,.12)}
.btn-qr{font-family:var(--f-mono);font-size:10px;text-transform:uppercase;letter-spacing:.1em;padding:8px 12px;border:1px solid var(--border2);border-radius:4px;color:var(--dim);background:transparent;cursor:pointer;transition:all 150ms;min-height:36px;display:inline-flex;align-items:center;gap:5px;-webkit-tap-highlight-color:transparent}
.btn-qr:hover,.btn-qr:active{color:var(--text);border-color:var(--muted);background:var(--ink3)}
.share-url{display:block;background:var(--ink3);border:1px solid var(--border);border-radius:6px;padding:12px 14px;font-family:var(--f-mono);font-size:11px;color:var(--muted);overflow-x:auto;user-select:all;word-break:break-all;line-height:1.5;cursor:text;transition:border-color 150ms}
.share-url:hover{border-color:var(--border2)}

/* ═══════════════ HISTORY ══════════════════════ */
.history-section{padding:24px 0;border-bottom:1px solid var(--border)}
.history-header{display:flex;align-items:center;justify-content:space-between;margin-bottom:14px;gap:12px;flex-wrap:wrap}
.history-header-actions{display:flex;align-items:center;gap:8px}
.history-save-row{display:flex;gap:8px;margin-bottom:12px}
.history-label-input{flex:1;background:var(--ink3);border:1px solid var(--border);border-radius:6px;padding:12px;font-family:var(--f-mono);font-size:16px;color:var(--text);outline:none;transition:border-color 150ms;min-height:48px}
.history-label-input:focus{border-color:rgba(200,255,0,.35)}
.history-label-input::placeholder{color:var(--dim)}
.btn-save-log{font-family:var(--f-mono);font-size:11px;letter-spacing:.06em;text-transform:uppercase;background:var(--limefade);color:var(--lime);border:1px solid rgba(200,255,0,.22);border-radius:6px;padding:12px 16px;min-height:48px;cursor:pointer;transition:all 150ms;white-space:nowrap;display:none;align-items:center;-webkit-tap-highlight-color:transparent}
.btn-save-log.visible{display:inline-flex}
.btn-save-log:active,.btn-save-log:hover{background:rgba(200,255,0,.12)}
.btn-clear-log{font-family:var(--f-mono);font-size:10px;text-transform:uppercase;letter-spacing:.08em;background:transparent;color:var(--dim);border:1px solid var(--border);border-radius:4px;padding:0 12px;min-height:44px;cursor:pointer;transition:all 120ms;display:inline-flex;align-items:center;-webkit-tap-highlight-color:transparent}
.btn-clear-log:active,.btn-clear-log:hover{color:#f87171;border-color:rgba(239,68,68,.3)}
.btn-export-log{font-family:var(--f-mono);font-size:10px;text-transform:uppercase;letter-spacing:.08em;background:var(--limefade);color:var(--lime);border:1px solid rgba(200,255,0,.22);border-radius:4px;padding:0 12px;min-height:44px;cursor:pointer;transition:all 120ms;display:inline-flex;align-items:center;gap:5px;-webkit-tap-highlight-color:transparent}
.btn-export-log:hover,.btn-export-log:active{background:rgba(200,255,0,.12)}
.history-empty{font-family:var(--f-mono);font-size:12px;color:var(--dim);padding:20px 0;text-align:center}
.history-list{display:flex;flex-direction:column;gap:0;border:1px solid var(--border);border-radius:10px;overflow:hidden}
.history-entry{border-bottom:1px solid var(--border);padding:16px;display:flex;align-items:flex-start;justify-content:space-between;gap:12px;cursor:pointer;transition:background 150ms;-webkit-tap-highlight-color:transparent}
.history-entry:last-child{border-bottom:none}
.history-entry:hover{background:var(--ink3)}
.history-entry:active{background:var(--ink2)}
.history-main{flex:1;min-width:0}
.history-result{font-family:var(--f-display);font-size:22px;letter-spacing:.04em;color:var(--text);line-height:1}
.history-meta{font-family:var(--f-mono);font-size:11px;color:var(--dim);margin-top:5px;line-height:1.5;overflow:hidden;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical}
.history-label-text{font-family:var(--f-mono);font-size:11px;color:var(--muted);font-style:italic;margin-top:3px}
.history-auto-badge{font-family:var(--f-mono);font-size:9px;text-transform:uppercase;letter-spacing:.1em;color:var(--dim);border:1px solid var(--border);border-radius:3px;padding:2px 5px;display:inline-block;margin-top:4px}
.history-right{display:flex;flex-direction:column;align-items:flex-end;gap:8px;flex-shrink:0}
.history-date{font-family:var(--f-mono);font-size:10px;color:var(--border2);white-space:nowrap}
.history-del{background:transparent;border:1px solid var(--border);border-radius:6px;padding:0;min-height:44px;min-width:44px;font-family:var(--f-mono);font-size:10px;color:var(--dim);cursor:pointer;transition:all 120ms;flex-shrink:0;display:inline-flex;align-items:center;justify-content:center;-webkit-tap-highlight-color:transparent}
.history-del:active,.history-del:hover{border-color:rgba(239,68,68,.4);color:#f87171;background:rgba(239,68,68,.06)}

/* ═══════════════ FAQ ══════════════════════════ */
.faq-details{margin-top:24px;border:1px solid var(--border);border-radius:8px;overflow:hidden}
.faq-summary{display:flex;align-items:center;gap:8px;padding:14px 16px;cursor:pointer;list-style:none;background:var(--ink2);font-family:var(--f-mono);font-size:11px;text-transform:uppercase;letter-spacing:.12em;color:var(--muted);user-select:none;-webkit-user-select:none}
.faq-summary::-webkit-details-marker{display:none}
.faq-details[open] .faq-summary{border-bottom:1px solid var(--border)}
.faq-details .chev{transition:transform 200ms;display:inline-block}
.faq-details[open] .chev{transform:rotate(90deg)}
.faq-body{padding:0}
.faq-item{padding:16px;border-bottom:1px solid var(--border)}
.faq-item:last-child{border-bottom:none}
.faq-q{font-family:var(--f-ui);font-size:14px;font-weight:600;color:var(--text);margin-bottom:6px}
.faq-a{font-family:var(--f-mono);font-size:12px;color:var(--muted);line-height:1.7}
.faq-link{color:var(--muted);text-decoration:none;border-bottom:1px solid var(--border2);transition:color 150ms,border-color 150ms}
.faq-link:hover{color:var(--lime);border-color:var(--lime)}

/* ── Custom scrollbars (Webkit) ── */
::-webkit-scrollbar{width:6px;height:6px}
::-webkit-scrollbar-track{background:var(--ink2)}
::-webkit-scrollbar-thumb{background:var(--border2);border-radius:3px}
::-webkit-scrollbar-thumb:hover{background:var(--muted)}
/* Firefox */
*{scrollbar-width:thin;scrollbar-color:var(--border2) var(--ink2)}
.site-footer{padding:28px var(--g);max-width:var(--w);margin:0 auto;display:flex;align-items:center;justify-content:space-between;flex-wrap:wrap;gap:8px}
.foot-note{font-family:var(--f-mono);font-size:10px;color:var(--dim);line-height:1.6}
.foot-links{font-family:var(--f-mono);font-size:10px;color:var(--dim);text-align:center}
.foot-link{color:var(--muted);text-decoration:none;border-bottom:1px solid var(--border2);transition:color 150ms,border-color 150ms}
.foot-link:hover{color:var(--lime);border-color:var(--lime)}
.foot-version{font-family:var(--f-mono);font-size:10px;color:var(--dim);background:var(--ink3);border:1px solid var(--border);border-radius:4px;padding:3px 8px;}

/* ═══════════════ MODALS ════════════════════════ */
.qr-backdrop,.share-modal-backdrop{position:fixed;inset:0;z-index:300;background:rgba(0,0,0,.8);backdrop-filter:blur(6px);-webkit-backdrop-filter:blur(6px);transition:opacity 200ms}
.qr-modal,.share-modal{position:fixed;top:50%;left:50%;transform:translate(-50%,-50%);z-index:301;background:var(--ink2);border:1px solid var(--border2);border-radius:14px;padding:24px;box-shadow:0 32px 80px rgba(0,0,0,.8),0 0 0 1px rgba(255,255,255,.04);animation:modalIn 220ms cubic-bezier(.23,1,.32,1)}
.qr-modal{width:min(320px,calc(100vw - 32px))}
.share-modal{width:min(380px,calc(100vw - 32px))}
.qr-modal-header,.share-modal-header{display:flex;align-items:center;justify-content:space-between;margin-bottom:20px}
.qr-modal-title,.share-modal-title{font-family:var(--f-mono);font-size:11px;text-transform:uppercase;letter-spacing:.14em;color:var(--muted)}
.qr-close-btn,.share-modal-close{width:32px;height:32px;border-radius:6px;background:var(--ink3);border:1px solid var(--border);color:var(--dim);cursor:pointer;font-size:14px;display:flex;align-items:center;justify-content:center;-webkit-tap-highlight-color:transparent}
.qr-close-btn:hover,.share-modal-close:hover{color:var(--text);border-color:var(--border2)}
.qr-canvas{display:block;margin:0 auto;border-radius:4px;image-rendering:pixelated;image-rendering:-moz-crisp-edges;image-rendering:crisp-edges;width:240px;height:240px;background:#fff}
.qr-url{margin-top:16px;font-family:var(--f-mono);font-size:10px;color:var(--dim);text-align:center;word-break:break-all;line-height:1.5}
.btn-qr-download{display:block;width:100%;margin-top:16px;font-family:var(--f-mono);font-size:11px;text-transform:uppercase;letter-spacing:.1em;background:var(--ink3);color:var(--muted);border:1px solid var(--border2);border-radius:6px;padding:12px;min-height:48px;cursor:pointer;transition:all 150ms;-webkit-tap-highlight-color:transparent}
.btn-qr-download:hover,.btn-qr-download:active{color:var(--text);border-color:var(--muted)}
.share-preview{font-family:var(--f-mono);font-size:12px;color:var(--lime);line-height:1.6;padding:12px 14px;background:var(--limefade);border:1px solid rgba(200,255,0,.15);border-radius:6px;margin-bottom:16px;word-break:break-word}
.share-platforms{display:grid;grid-template-columns:repeat(3,1fr);gap:8px;margin-bottom:12px}
.share-platform-btn{display:flex;flex-direction:column;align-items:center;gap:6px;background:var(--ink3);border:1px solid var(--border);border-radius:8px;padding:14px 8px;cursor:pointer;transition:all 150ms;color:var(--muted);-webkit-tap-highlight-color:transparent}
.share-platform-btn:hover,.share-platform-btn:active{background:var(--ink2);border-color:var(--border2);color:var(--text)}
.share-platform-icon{font-size:20px;font-style:normal;line-height:1;font-family:var(--f-mono);font-weight:700}
.share-platform-btn span:last-child{font-family:var(--f-mono);font-size:10px;text-transform:uppercase;letter-spacing:.08em}
.share-copy-row{display:grid;grid-template-columns:1fr 1fr;gap:8px;margin-bottom:12px}
.share-copy-btn{font-family:var(--f-mono);font-size:11px;letter-spacing:.06em;background:var(--ink3);color:var(--muted);border:1px solid var(--border2);border-radius:6px;padding:11px 8px;min-height:44px;cursor:pointer;transition:all 150ms;text-align:center;-webkit-tap-highlight-color:transparent}
.share-copy-btn:hover,.share-copy-btn:active{color:var(--lime);border-color:rgba(200,255,0,.3)}
.share-url-row .share-url{margin:0;font-size:10px}

/* ═══════════════ PWA BANNER ════════════════════ */
.pwa-banner{position:fixed;bottom:0;left:0;right:0;z-index:200;padding:12px 16px calc(12px + var(--safe-b,0px));background:var(--ink2);border-top:1px solid var(--border2);box-shadow:0 -8px 32px rgba(0,0,0,.5);animation:slideUp 300ms cubic-bezier(.23,1,.32,1)}
@media(max-width:640px){.pwa-banner{bottom:calc(52px + 28px + var(--safe-b,0px))}}
.pwa-banner-inner{max-width:var(--w);margin:0 auto;display:flex;align-items:center;gap:12px}
.pwa-icon{width:40px;height:40px;border-radius:8px;background:var(--lime);display:flex;align-items:center;justify-content:center;flex-shrink:0;font-family:var(--f-display);font-size:14px;color:var(--ink)}
.pwa-text{display:flex;flex-direction:column;gap:2px;flex:1;min-width:0}
.pwa-text strong{font-family:var(--f-ui);font-size:14px;color:var(--text);font-weight:600}
.pwa-text span{font-family:var(--f-mono);font-size:11px;color:var(--muted)}
.pwa-install-btn{font-family:var(--f-mono);font-size:12px;text-transform:uppercase;letter-spacing:.08em;background:var(--lime);color:var(--ink);border:none;border-radius:6px;padding:10px 18px;min-height:44px;cursor:pointer;white-space:nowrap;flex-shrink:0;-webkit-tap-highlight-color:transparent}
.pwa-dismiss-btn{width:36px;height:36px;border-radius:50%;background:transparent;border:1px solid var(--border);color:var(--dim);cursor:pointer;display:flex;align-items:center;justify-content:center;font-size:14px;flex-shrink:0;-webkit-tap-highlight-color:transparent}
.pwa-dismiss-btn:hover{color:var(--muted);border-color:var(--border2)}