/* ===========================================================
   WhoOwesWho? — soft, rounded, illustrated UI on the dark
   graphite + green palette. Mobile first.
   =========================================================== */
:root{
  --bg:#0d0f10;
  --bg-soft:#121517;
  --card:#171b1d;
  --card-2:#1e2326;
  --line:#262c2f;
  --line-2:#333b3f;
  --ink:#e9edeb;
  --muted:#8d9793;
  --accent:#2fbf71;
  --accent-dim:#27a862;
  --accent-ink:#06120b;
  --accent-soft:rgba(47,191,113,.13);
  --accent-line:rgba(47,191,113,.38);
  --red:#e8686e;
  --red-soft:rgba(232,104,110,.13);

  --r:24px;            /* cards      */
  --r-sm:16px;         /* inner bits */
  --r-xs:12px;
  --pill:999px;
  --shadow:0 12px 30px rgba(0,0,0,.38);
  --shadow-sm:0 4px 14px rgba(0,0,0,.26);
  --safe-l:env(safe-area-inset-left);
  --safe-r:env(safe-area-inset-right);
  --nav-h:74px;
}
*{box-sizing:border-box;-webkit-tap-highlight-color:transparent}
/* any class that sets its own display would otherwise beat the hidden
   attribute — this keeps [hidden] authoritative everywhere. */
[hidden]{display:none!important}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  font:15px/1.55 -apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Helvetica,Arial,sans-serif;
  background:var(--bg);color:var(--ink);overflow-x:hidden;
}
h2{font-size:16px;margin:0 0 14px;display:flex;align-items:center;gap:8px;flex-wrap:wrap;letter-spacing:-.01em}
h3{font-size:12px;margin:0;text-transform:uppercase;letter-spacing:.06em;color:var(--muted);font-weight:650}

.view{display:none}
.view.active{display:block}

/* ---------------- art gradients ----------------
   Trip identity colour, picked from the trip id. Classes rather than
   inline styles so the Content-Security-Policy can stay strict. */
.art{position:relative;overflow:hidden;background:linear-gradient(140deg,#35c97a,#17714a)}
.art-0{background:linear-gradient(140deg,#35c97a,#17714a)}   /* green  */
.art-1{background:linear-gradient(140deg,#2fc2a8,#146a60)}   /* teal   */
.art-2{background:linear-gradient(140deg,#38b6d8,#14607a)}   /* cyan   */
.art-3{background:linear-gradient(140deg,#6d97f2,#26489f)}   /* blue   */
.art-4{background:linear-gradient(140deg,#a385f2,#4d2fa0)}   /* violet */
.art-5{background:linear-gradient(140deg,#ea7fb8,#8e2c66)}   /* pink   */
.art-6{background:linear-gradient(140deg,#f2916a,#a83f2a)}   /* coral  */
.art-7{background:linear-gradient(140deg,#eac25c,#9c6a18)}   /* amber  */
/* photo sits underneath, scrim above it, content on top */
.art>.art-img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;z-index:0}
.art::after{
  content:"";position:absolute;inset:0;z-index:1;
  background:radial-gradient(120% 90% at 18% 8%,rgba(255,255,255,.3),transparent 62%);
}
.art.has-cover::after{                       /* scrim keeps hero text readable */
  background:linear-gradient(180deg,rgba(0,0,0,.42),rgba(0,0,0,.04) 45%,rgba(0,0,0,.34));
}
.trip-card .art.has-cover::after{background:none}   /* no text over the thumbnail */

/* ---------------- top bar ---------------- */
.topbar{
  padding:calc(16px + env(safe-area-inset-top)) max(18px,var(--safe-l)) 14px max(18px,var(--safe-r));
  display:flex;align-items:center;gap:14px;
}
.brand-text{min-width:0}
.brand-text.grow{flex:1}
.sub-line{font-size:12.5px;color:var(--muted);margin-top:4px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.brand-logo{display:block;height:44px;width:auto;max-width:100%;image-rendering:-webkit-optimize-contrast}
.brand-logo.big{height:76px;margin:0 auto 18px}

.icon-btn{
  width:44px;height:44px;flex:none;border:0;background:rgba(0,0,0,.28);color:#fff;
  border-radius:var(--pill);font-size:26px;line-height:1;cursor:pointer;
  display:grid;place-items:center;padding-bottom:4px;backdrop-filter:blur(6px);
}
.icon-btn:active{transform:scale(.94)}
.total-box{text-align:right;flex:none}
.total-box .label{display:block;font-size:10px;text-transform:uppercase;letter-spacing:.09em;color:var(--muted)}
.total-box strong{font-size:18px;font-variant-numeric:tabular-nums;color:var(--accent)}

main{
  max-width:940px;margin:0 auto;
  padding:18px max(16px,var(--safe-l)) calc(var(--nav-h) + 28px + env(safe-area-inset-bottom)) max(16px,var(--safe-r));
}
#view-trips main{padding-bottom:calc(28px + env(safe-area-inset-bottom))}
.panel{display:none}
.panel.active{display:block}

.card{
  background:var(--card);border:1px solid var(--line);border-radius:var(--r);
  padding:18px 16px;margin-bottom:14px;box-shadow:var(--shadow-sm);
}

/* ---------------- controls ---------------- */
input,select,button,textarea{font-family:inherit}
/* Base field styling stays at low specificity (one element selector) so that
   component rules like .pick .num-in and .trip-name can still override it.
   Excluding types with :not() pushes this to (0,3,1) and beats them. */
input,select,textarea{
  width:100%;padding:13px 16px;border:1px solid var(--line-2);border-radius:var(--pill);
  background:var(--bg-soft);color:var(--ink);font-size:16px;  /* 16px stops iOS zoom-on-focus */
}
input[type=checkbox],input[type=radio],input[type=file]{
  width:auto;padding:0;border:0;background:none;border-radius:0;box-shadow:none;
}
textarea,select{border-radius:var(--r-sm)}
select{
  appearance:none;-webkit-appearance:none;
  background-image:linear-gradient(45deg,transparent 50%,var(--muted) 50%),linear-gradient(135deg,var(--muted) 50%,transparent 50%);
  background-position:calc(100% - 20px) 50%,calc(100% - 15px) 50%;
  background-size:5px 5px,5px 5px;background-repeat:no-repeat;padding-right:38px;
}
input::placeholder{color:#5d6764}
input:focus,select:focus{outline:0;border-color:var(--accent);box-shadow:0 0 0 4px var(--accent-soft)}
/* iOS ignores width on date inputs unless appearance is reset, which made the
   field overflow its grid column. min-width:0 lets the column shrink too. */
input[type=date]{
  -webkit-appearance:none;appearance:none;
  min-height:48px;min-width:0;max-width:100%;
}
input[type=date]::-webkit-date-and-time-value{text-align:left;margin:0}
input[type=date]::-webkit-datetime-edit{padding:0}
::-webkit-calendar-picker-indicator{filter:invert(.7)}

.field{display:block;min-width:0}
.field>span{display:block;font-size:11.5px;color:var(--muted);margin-bottom:6px;font-weight:600;letter-spacing:.02em;padding-left:4px}
.field.method{margin:0 0 12px}
.field-label{display:block;font-size:11.5px;color:var(--muted);margin-bottom:8px;font-weight:600;letter-spacing:.02em;padding-left:4px}
.grid-4{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:12px}

.btn{
  border:1px solid var(--line-2);background:var(--card-2);color:var(--ink);border-radius:var(--pill);
  padding:13px 20px;min-height:48px;cursor:pointer;font-size:14.5px;font-weight:650;white-space:nowrap;
}
.btn:active{transform:translateY(1px)}
.btn.primary{background:var(--accent);border-color:var(--accent);color:var(--accent-ink);box-shadow:0 8px 20px rgba(47,191,113,.22)}
.btn.primary:disabled{opacity:.35;cursor:not-allowed;box-shadow:none}
.btn.danger{color:var(--red);border-color:rgba(232,104,110,.32);background:transparent;box-shadow:none}
.btn.small{padding:8px 15px;min-height:38px;font-size:13px}
.btn.block{width:100%;display:block}
.btn-row{display:flex;gap:10px;flex-wrap:wrap}
.btn-row.end{justify-content:stretch;margin-top:16px}
.btn-row.end .btn{flex:1}
.center-row{justify-content:center;margin-top:14px}
.link{border:0;background:none;color:var(--accent);cursor:pointer;font-size:13px;font-weight:650;padding:6px}
.mini-actions{display:flex;gap:2px}

.hint{font-size:12.5px;color:var(--muted);font-weight:400;line-height:1.55}
p.hint{margin:0 0 12px}
.hint.center{text-align:center;margin:0 0 20px}
.empty{color:var(--muted);font-size:13.5px;text-align:center;padding:22px 6px;margin:0}

/* ---------------- home: bento ---------------- */
.bento{display:grid;grid-template-columns:repeat(2,1fr);gap:12px;margin-bottom:16px}
.tile{
  background:var(--card);border:1px solid var(--line);border-radius:var(--r);
  padding:16px;display:flex;flex-direction:column;min-width:0;
  color:inherit;font:inherit;text-align:left;box-shadow:var(--shadow-sm);
}
.tile.act{cursor:pointer;flex-direction:row;align-items:center;gap:14px;grid-column:span 2}
.tile.act:active{transform:translateY(1px)}
.tile.act.open{border-color:var(--accent);box-shadow:0 0 0 4px var(--accent-soft)}
.tile.new{background:linear-gradient(135deg,#35c97a,#21935c);border-color:transparent;color:var(--accent-ink);box-shadow:0 12px 26px rgba(47,191,113,.26)}
.tile.new .tile-sub{color:rgba(6,18,12,.72)}
.tile-icon{
  width:52px;height:52px;border-radius:var(--pill);flex:none;display:grid;place-items:center;
  font-size:25px;font-weight:700;line-height:1;background:rgba(0,0,0,.16);
}
.tile.join .tile-icon{background:var(--accent-soft);color:var(--accent)}
.tile-body{display:flex;flex-direction:column;gap:3px;min-width:0}
.tile-title{font-size:17px;font-weight:700;letter-spacing:-.01em}
.tile-sub{font-size:12.5px;opacity:.85;line-height:1.4}
.tile.stat{gap:6px;justify-content:center;min-height:92px}
.stat-label{font-size:10.5px;text-transform:uppercase;letter-spacing:.07em;color:var(--muted);font-weight:700}
.stat-value{font-size:22px;font-weight:750;font-variant-numeric:tabular-nums;letter-spacing:-.02em}
.modal{
  position:fixed;inset:0;z-index:150;display:grid;place-items:center;
  padding:18px;background:rgba(4,6,6,.66);backdrop-filter:blur(7px);
}
.modal-sheet{
  position:relative;width:100%;max-width:440px;max-height:86dvh;overflow-y:auto;
  background:var(--card);border:1px solid var(--line-2);border-radius:var(--r);
  padding:24px 18px 20px;box-shadow:var(--shadow);
}
.modal-sheet h2{padding-right:44px}
.modal-sheet .btn.block{margin-top:4px}
.modal-sheet .hint{margin:12px 0 0}
.modal-close{
  position:absolute;top:14px;right:14px;width:38px;height:38px;flex:none;
  border-radius:var(--pill);border:1px solid var(--line-2);background:var(--card-2);
  color:var(--ink);font-size:22px;line-height:1;cursor:pointer;
}
.modal-close:active{transform:scale(.94)}
body.modal-open{overflow:hidden}

/* ---------------- trip cards ---------------- */
.trip-card{
  display:grid;grid-template-columns:auto minmax(0,1fr) auto;
  grid-template-areas:"art title go" "art meta meta";
  align-items:center;column-gap:14px;row-gap:5px;
  width:100%;text-align:left;font:inherit;
  background:var(--card-2);border:1px solid var(--line);border-radius:var(--r);
  padding:14px;margin-bottom:12px;cursor:pointer;color:inherit;
}
.trip-card:active{border-color:var(--accent-line)}
.trip-card .art{
  grid-area:art;width:58px;height:58px;border-radius:18px;
  display:grid;place-items:center;flex:none;
}
.art-label{position:relative;z-index:2;font-weight:800;font-size:19px;color:#08150e;letter-spacing:-.02em;text-transform:uppercase}
.trip-card .title{grid-area:title;font-size:16px;font-weight:700;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.trip-card .tot{font-variant-numeric:tabular-nums;font-weight:750;color:var(--accent);font-size:13.5px;white-space:nowrap}
.trip-card .go{grid-area:go;color:var(--muted);font-size:20px;line-height:1}
.trip-card .meta{grid-area:meta;display:flex;align-items:center;gap:8px;flex-wrap:wrap;font-size:12.5px;color:var(--muted)}

/* ---------------- trip hero ---------------- */
.hero{position:relative}
.hero-art{
  height:168px;text-shadow:0 1px 6px rgba(0,0,0,.35);padding:calc(14px + env(safe-area-inset-top)) 18px 40px;
  display:flex;align-items:flex-start;justify-content:space-between;gap:12px;
  border-bottom-left-radius:32px;border-bottom-right-radius:32px;
}
.hero-art>*{position:relative;z-index:2}
.hero-art>.art-img{z-index:0}
.hero-total{text-align:right;color:#fff}
.hero-total .label{display:block;font-size:10px;text-transform:uppercase;letter-spacing:.09em;opacity:.78;font-weight:700}
.hero-total strong{font-size:21px;font-variant-numeric:tabular-nums;letter-spacing:-.02em}
.hero-card{
  position:relative;z-index:2;margin:-44px max(16px,var(--safe-l)) 0;
  background:var(--card);border:1px solid var(--line);border-radius:var(--r);
  padding:16px;box-shadow:var(--shadow);
}
.trip-name{
  border:0;background:transparent;font-size:20px;font-weight:750;color:var(--ink);
  padding:2px 6px;margin-left:-6px;border-radius:10px;width:100%;letter-spacing:-.02em;
}
.trip-name:focus{outline:0;background:var(--card-2);box-shadow:none}

.strip{
  display:flex;align-items:center;gap:12px;margin-top:14px;
  background:var(--accent-soft);border:1px solid var(--accent-line);
  border-radius:var(--r-sm);padding:12px 14px;
}
.strip.owe{background:var(--red-soft);border-color:rgba(232,104,110,.3)}
.strip.even{background:var(--card-2);border-color:var(--line)}
.strip-ico{width:34px;height:34px;border-radius:var(--pill);flex:none;display:grid;place-items:center;font-size:17px;background:rgba(0,0,0,.24)}
.strip-body{flex:1;min-width:0;display:block}
.strip-title{display:block;font-size:14.5px;font-weight:700}
.strip-sub{display:block;font-size:12px;color:var(--muted);margin-top:2px;line-height:1.45}
.strip .amt{font-variant-numeric:tabular-nums;font-weight:750;white-space:nowrap}

/* ---------------- tabs -> bottom bar on phones ---------------- */
.tabs{
  position:fixed;left:0;right:0;bottom:0;z-index:40;display:flex;gap:4px;
  padding:8px max(12px,var(--safe-l)) calc(8px + env(safe-area-inset-bottom)) max(12px,var(--safe-r));
  background:rgba(18,21,23,.94);backdrop-filter:blur(14px);border-top:1px solid var(--line);
}
.tab{
  flex:1;border:0;background:transparent;padding:11px 4px;font:inherit;font-size:12.5px;font-weight:650;
  color:var(--muted);cursor:pointer;white-space:nowrap;border-radius:var(--pill);
}
.tab.active{color:var(--accent-ink);background:var(--accent)}

/* ---------------- split picker ---------------- */
.split-cols{display:grid;grid-template-columns:1fr;gap:22px;margin-top:20px}
.col-head{display:flex;justify-content:space-between;align-items:center;margin-bottom:10px;min-height:30px;gap:8px}
.picker{border:1px solid var(--line);border-radius:var(--r-sm);overflow:hidden;background:var(--bg-soft)}
.pick{display:flex;align-items:center;gap:10px;padding:11px 13px;border-bottom:1px solid var(--line);flex-wrap:wrap}
.pick:last-child{border-bottom:0}
.pick.on{background:var(--accent-soft)}
.pick.taken{opacity:.45}
.pick input[type=checkbox],.pick input[type=radio]{width:20px;height:20px;flex:none;accent-color:var(--accent);cursor:pointer}
.pick .who{flex:1 1 auto;min-width:104px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;cursor:pointer;font-size:14.5px}
.pick .num-in{width:84px;flex:0 0 auto;padding:8px 10px;text-align:right;font-size:15px;border-radius:var(--r-xs)}
.pick .unit{font-size:12px;color:var(--muted);width:10px;flex:none}
.pick .calc{width:82px;flex:0 0 auto;margin-left:auto;text-align:right;font-variant-numeric:tabular-nums;font-size:13px;color:var(--accent)}
.pick .take{font-size:11px;color:var(--muted);flex:none}
.picker .none{padding:18px;text-align:center;color:var(--muted);font-size:13.5px}

.summary{margin-top:10px;font-size:12.5px;padding:11px 14px;border-radius:var(--r-sm);background:var(--card-2);color:var(--muted);font-variant-numeric:tabular-nums;line-height:1.5}
.summary.ok{background:var(--accent-soft);color:var(--accent);border:1px solid var(--accent-line)}
.summary.bad{background:var(--red-soft);color:var(--red);border:1px solid rgba(232,104,110,.3)}
.form-error.info{background:var(--accent-soft);color:var(--accent);border-color:var(--accent-line)}
.form-error{margin-top:12px;padding:12px 14px;border-radius:var(--r-sm);background:var(--red-soft);color:var(--red);font-size:13px;border:1px solid rgba(232,104,110,.3)}

/* ---------------- spending chart ---------------- */
/* stretch, not flex-end: the columns must fill the chart height or the
   percentage bar heights resolve against nothing */
.chart{display:flex;align-items:stretch;gap:8px;height:150px;padding-top:8px}
.chart-col{flex:1;display:flex;flex-direction:column;align-items:center;justify-content:flex-end;gap:8px;min-width:0}
.bar-wrap{flex:1;width:100%;position:relative;min-height:0}
.bar{position:absolute;bottom:0;left:50%;transform:translateX(-50%);width:100%;max-width:34px;border-radius:var(--r-xs);background:rgba(47,191,113,.28);min-height:6px}
.bar.max{background:linear-gradient(180deg,#35c97a,#1f8d57)}
.chart-lab{font-size:10.5px;color:var(--muted);text-align:center;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;max-width:100%}
.chart-val{font-size:10.5px;color:var(--muted);font-variant-numeric:tabular-nums}
.h0{height:0}.h5{height:5%}.h10{height:10%}.h15{height:15%}.h20{height:20%}.h25{height:25%}
.h30{height:30%}.h35{height:35%}.h40{height:40%}.h45{height:45%}.h50{height:50%}.h55{height:55%}
.h60{height:60%}.h65{height:65%}.h70{height:70%}.h75{height:75%}.h80{height:80%}.h85{height:85%}
.h90{height:90%}.h95{height:95%}.h100{height:100%}

/* ---------------- lists ---------------- */
.list{list-style:none;margin:0;padding:0}
.item{display:flex;align-items:center;gap:12px;padding:13px 2px;border-bottom:1px solid var(--line);flex-wrap:wrap}
.item:last-child{border-bottom:0}
.item .main{flex:1;min-width:0}
.item .title{font-weight:650;font-size:14.5px;overflow-wrap:anywhere}
.item .sub{font-size:12.5px;color:var(--muted);margin-top:3px;overflow-wrap:anywhere}
.item .amt{font-variant-numeric:tabular-nums;font-weight:750;white-space:nowrap;font-size:15px}
.item .acts{display:flex;gap:8px;width:100%}
.item .acts .btn{flex:1}
.avatar{
  width:42px;height:42px;border-radius:var(--pill);background:var(--accent-soft);color:var(--accent);
  display:grid;place-items:center;font-weight:750;font-size:13px;flex:none;text-transform:uppercase;
  border:1px solid var(--accent-line);
}
.chip{display:inline-block;font-size:11px;padding:3px 9px;border-radius:var(--pill);background:var(--card-2);color:var(--muted);margin-left:6px;vertical-align:1px}
.badge{font-size:10.5px;padding:3px 9px;border-radius:var(--pill);background:var(--accent-soft);color:var(--accent);font-weight:700;letter-spacing:.02em}
.badge.grey{background:var(--card-2);color:var(--muted)}
.email-line{font-size:12.5px;color:var(--muted);overflow-wrap:anywhere}

.bal-right{text-align:right;flex:none;display:flex;flex-direction:column;align-items:flex-end;gap:5px}
.pos{color:var(--accent)}
.neg{color:var(--red)}
.tag{font-size:10.5px;padding:4px 10px;border-radius:var(--pill);font-weight:700;letter-spacing:.02em;text-transform:uppercase}
.tag.owed{background:var(--accent-soft);color:var(--accent)}
.tag.owes{background:var(--red-soft);color:var(--red)}
.tag.even{background:var(--card-2);color:var(--muted)}
.flow{display:flex;align-items:center;gap:8px;flex-wrap:wrap;font-weight:650;font-size:14.5px}
.arrow{color:var(--accent)}

/* ---------------- trip code ---------------- */
.code-field{text-transform:uppercase;text-align:center;font-weight:700;letter-spacing:.14em;font-family:ui-monospace,SFMono-Regular,Menlo,monospace}
.code-display{display:flex;align-items:center;gap:12px;flex-wrap:wrap}
.code-text{
  font-family:ui-monospace,SFMono-Regular,Menlo,monospace;font-size:26px;font-weight:700;
  letter-spacing:.12em;color:var(--accent);background:var(--bg-soft);
  border:1px dashed var(--accent-line);border-radius:var(--r-sm);padding:14px 10px 14px 20px;
  flex:1 1 auto;text-align:center;
}
.code-btns{display:flex;gap:10px;flex:1 1 220px}
.code-btns .btn{flex:1}
.join-head{margin:18px 0 10px;font-size:13.5px;color:var(--muted)}
.join-head b{color:var(--ink)}

/* ---------------- members ---------------- */
.member-form{display:grid;grid-template-columns:1fr;gap:10px;margin-bottom:16px}
.member-form .btn{width:100%}
.member-edit{display:grid;grid-template-columns:1fr;gap:10px;width:100%;padding:4px 0 10px}
.member-edit .btn-row{justify-content:flex-end}

/* ---------------- receipts ---------------- */
.receipt-row{margin-top:18px}
.receipt-box{display:flex;align-items:center;gap:14px;flex-wrap:wrap;background:var(--bg-soft);border:1px solid var(--line);border-radius:var(--r-sm);padding:12px}
.receipt-preview{width:70px;height:70px;object-fit:cover;border-radius:var(--r-xs);border:1px solid var(--line-2);flex:none;background:var(--card-2)}
.receipt-actions{display:flex;align-items:center;gap:10px;flex-wrap:wrap;flex:1;min-width:0}
.receipt-thumb{width:44px;height:44px;object-fit:cover;border-radius:var(--r-xs);flex:none;cursor:pointer;border:1px solid var(--line-2);background:var(--card-2);padding:0}

/* ---------------- trip appearance ---------------- */
.swatches{display:flex;flex-wrap:wrap;gap:10px;margin-top:4px}
.swatch{
  width:44px;height:44px;border-radius:14px;border:2px solid transparent;
  cursor:pointer;padding:0;position:relative;overflow:hidden;
}
.swatch.on{border-color:var(--ink);box-shadow:0 0 0 3px var(--accent-soft)}
.swatch.auto{background:var(--card-2);border-color:var(--line-2);color:var(--muted);font-size:10px;font-weight:700;letter-spacing:.04em}
.swatch.auto.on{border-color:var(--ink);color:var(--ink)}

/* ---------------- notices, toast, lightbox ---------------- */
.notice{
  display:block;text-align:left;background:var(--card);border:1px solid var(--line);
  border-left:3px solid var(--accent);border-radius:var(--r-sm);
  padding:13px 15px;margin-bottom:14px;font-size:12.5px;color:var(--muted);line-height:1.55;
}
.notice.with-action{display:flex;align-items:center;gap:10px;flex-wrap:wrap;justify-content:space-between}
.notice b{color:var(--ink);font-weight:650}
.notice code{background:var(--card-2);padding:2px 7px;border-radius:6px;color:var(--accent);font-size:12px}

.toast{
  position:fixed;left:50%;transform:translateX(-50%);
  bottom:calc(var(--nav-h) + 16px + env(safe-area-inset-bottom));z-index:99;
  max-width:min(440px,calc(100vw - 32px));
  background:var(--card-2);color:var(--ink);border:1px solid var(--line-2);
  border-radius:var(--r-sm);padding:13px 17px;font-size:13.5px;line-height:1.5;box-shadow:var(--shadow);
}
.toast.err{border-color:rgba(232,104,110,.5);color:var(--red)}
.toast.ok{border-color:var(--accent-line);color:var(--accent)}

.lightbox{position:fixed;inset:0;z-index:200;background:rgba(0,0,0,.93);display:grid;place-items:center;padding:20px}
.lightbox img{max-width:100%;max-height:80vh;border-radius:var(--r-sm);object-fit:contain}
.lightbox-close{
  position:absolute;top:calc(14px + env(safe-area-inset-top));right:18px;
  width:46px;height:46px;border-radius:var(--pill);border:1px solid var(--line-2);
  background:var(--card);color:var(--ink);font-size:26px;line-height:1;cursor:pointer;
}
.lightbox-cap{position:absolute;left:0;right:0;bottom:calc(20px + env(safe-area-inset-bottom));color:var(--muted);font-size:13px;text-align:center;padding:0 20px}

/* ---------------- boot screen ---------------- */
.auth-wrap{
  min-height:100dvh;display:grid;place-items:center;
  padding:24px max(18px,var(--safe-l)) calc(24px + env(safe-area-inset-bottom)) max(18px,var(--safe-r));
}
.auth-card{width:100%;max-width:410px;margin:0;text-align:center;padding:30px 22px}

/* ---------------- footer ---------------- */
.site-foot{margin-top:28px;padding:24px 16px calc(8px + env(safe-area-inset-bottom));border-top:1px solid var(--line);text-align:center}
.foot-logo{display:block;height:38px;width:auto;margin:0 auto 14px;opacity:.6}
.site-foot p{margin:0 auto 6px}
.foot-line{font-size:13.5px;color:var(--ink);font-weight:600}
.foot-meta{font-size:12.5px;color:var(--muted);line-height:1.6;max-width:42ch;margin-inline:auto}
.foot-copy{font-size:11.5px;color:#5d6764;margin-top:16px}

/* ---------------- wider screens ---------------- */
@media (min-width:640px){
  body{font-size:14px}
  .card{padding:22px}
  .grid-4{grid-template-columns:repeat(4,minmax(0,1fr))}
  .btn-row.end{justify-content:flex-end}
  .btn-row.end .btn{flex:0 0 auto}
  .item .acts{width:auto}
  .item .acts .btn{flex:0 0 auto}
  input,select,textarea{font-size:14px;padding:11px 15px}
  .pick .num-in{font-size:14px;width:92px}
  .pick .calc{width:96px}
  .brand-logo{height:50px}
  .brand-logo.big{height:86px}
  .member-form{grid-template-columns:1fr auto}
  .member-edit{grid-template-columns:1fr auto}
  .code-display .code-text{flex:0 0 auto;text-align:left}
  .code-btns{flex:0 0 auto}
  .code-btns .btn{flex:0 0 auto}
  .bento{grid-template-columns:repeat(4,1fr);gap:14px}
  .tile.new{grid-column:span 2;grid-row:span 2;flex-direction:column;align-items:flex-start;justify-content:center;gap:18px;padding:24px}
  .tile.new .tile-title{font-size:22px}
  .tile.join{grid-column:span 2}
  .tile.stat{grid-column:span 1}
  .chart{height:180px}
}
@media (min-width:900px){
  .split-cols{grid-template-columns:1fr 1fr;gap:24px}
  /* roomy screens put navigation back on top */
  :root{--nav-h:0px}
  .tabs{
    position:sticky;top:0;bottom:auto;max-width:940px;margin:0 auto 16px;
    border-top:0;border-bottom:1px solid var(--line);background:rgba(13,15,16,.92);
    padding:0 8px;border-radius:0;
  }
  .tab{flex:0 0 auto;padding:15px 22px;border-radius:0;border-bottom:2px solid transparent}
  .tab.active{background:transparent;color:var(--accent);border-bottom-color:var(--accent)}
  .hero-card{max-width:940px;margin-inline:auto}
  .toast{bottom:24px}
}