/* ------------------------------------------------------------------
   ZSplit — tema oscuro, simple.
------------------------------------------------------------------ */
:root{
  --bg:#0e1013;
  --card:#161a21;
  --card-2:#1c212a;
  --line:#252b36;
  --text:#e7eaf0;
  --muted:#8d95a8;
  --green:#35d399;
  --red:#ff6b7a;
  --accent:#35d399;
  --accent-ink:#06231a;
  --radius:16px;
  --shadow:0 10px 30px rgba(0,0,0,.35);
}

*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font:15px/1.55 -apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Inter,"Helvetica Neue",Arial,sans-serif;
  -webkit-font-smoothing:antialiased;
  padding-bottom:96px;
}
a{color:inherit;text-decoration:none}
h1,h2,h3{margin:0;font-weight:650;letter-spacing:-.01em}
h1{font-size:22px}
p{margin:0 0 10px}
code{background:var(--card-2);padding:2px 6px;border-radius:6px;font-size:12px}
.muted{color:var(--muted)}
.small{font-size:13px}
.center{text-align:center}
.positive{color:var(--green)}
.negative{color:var(--red)}
.neutral{color:var(--muted)}

/* ---------- layout ---------- */
.wrap{max-width:620px;margin:0 auto;padding:16px 16px 0}
.topbar{
  position:sticky;top:0;z-index:20;
  background:rgba(14,16,19,.86);
  backdrop-filter:saturate(150%) blur(12px);
  border-bottom:1px solid var(--line);
}
.topbar-inner{
  max-width:620px;margin:0 auto;padding:10px 16px;
  display:flex;align-items:center;gap:12px;
}
.brand{display:flex;align-items:center;gap:8px;font-weight:700;letter-spacing:-.02em}
.brand-dot{width:10px;height:10px;border-radius:50%;background:var(--accent);box-shadow:0 0 12px var(--accent)}
.nav{display:flex;gap:4px;margin-left:auto}
.nav a{
  padding:6px 10px;border-radius:999px;color:var(--muted);font-size:14px;
}
.nav a:hover{color:var(--text);background:var(--card)}
.nav a.on{color:var(--text);background:var(--card-2)}
.topbar-me{display:flex}
.topbar-out{
  display:flex;align-items:center;justify-content:center;
  width:34px;height:34px;border-radius:50%;
  background:var(--card);border:1px solid var(--line);color:var(--muted);
}
.topbar-out:hover{color:var(--red);border-color:rgba(255,107,122,.45)}

.page-head{display:flex;align-items:center;gap:10px;margin:6px 0 16px}
.back{
  width:34px;height:34px;border-radius:10px;background:var(--card);
  display:flex;align-items:center;justify-content:center;font-size:18px;color:var(--muted);
}
.back:hover{color:var(--text)}

/* ---------- tarjetas ---------- */
.card{
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--radius);
  padding:18px;
  margin-bottom:16px;
}
.section-title{font-size:14px;text-transform:uppercase;letter-spacing:.06em;color:var(--muted);margin-bottom:12px}

/* ---------- balance ---------- */
.balance-card{
  background:linear-gradient(160deg,#1b2230,#161a21);
  border:1px solid var(--line);
  border-radius:var(--radius);
  padding:20px;margin-bottom:14px;box-shadow:var(--shadow);
}
.balance-main{display:flex;align-items:center;gap:14px}
.balance-text{display:flex;flex-direction:column;gap:2px;min-width:0}
.balance-label{color:var(--muted);font-size:14px}
.balance-amount{font-size:30px;font-weight:700;letter-spacing:-.02em}
.balance-card.is-positive .balance-amount{color:var(--green)}
.balance-card.is-negative .balance-amount{color:var(--red)}
.balance-card.is-zero .balance-amount{font-size:24px}
.balance-main .avatar{margin-left:auto}
.balance-actions{display:flex;gap:10px;margin-top:16px;flex-wrap:wrap}
.balance-mini{font-size:16px}
.balance-mini.positive{color:var(--green)}
.balance-mini.negative{color:var(--red)}

.stats{display:grid;grid-template-columns:1fr 1fr;gap:10px;margin-bottom:16px}
.stat{background:var(--card);border:1px solid var(--line);border-radius:12px;padding:12px 14px;display:flex;flex-direction:column;gap:2px}
.stat-label{font-size:12px;color:var(--muted)}
.stat-value{font-size:18px;font-weight:650}

/* ---------- filtros ---------- */
.filters{display:flex;gap:8px;flex-wrap:wrap;margin-bottom:14px}
.filters input,.filters select{
  background:var(--card);border:1px solid var(--line);color:var(--text);
  border-radius:10px;padding:9px 11px;font-size:14px;min-width:0;
}
.filter-search{flex:1 1 160px}
.filters select,.filters input[type=month]{flex:0 1 auto;color-scheme:dark}

/* ---------- listas ---------- */
.list{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;margin-bottom:16px}
.list-month{
  padding:10px 16px;font-size:12px;text-transform:uppercase;letter-spacing:.08em;
  color:var(--muted);background:var(--card-2);border-bottom:1px solid var(--line);
}
.row{
  display:flex;align-items:center;gap:12px;padding:12px 16px;
  border-bottom:1px solid var(--line);
}
.row:last-child{border-bottom:0}
.row:hover{background:var(--card-2)}
.row-date{display:flex;flex-direction:column;align-items:center;width:34px;flex:0 0 34px}
.row-day{font-size:16px;font-weight:650;line-height:1.1}
.row-mon{font-size:11px;color:var(--muted);text-transform:uppercase}
.row-icon{
  width:38px;height:38px;flex:0 0 38px;border-radius:11px;background:var(--card-2);
  display:flex;align-items:center;justify-content:center;font-size:18px;
}
.row-body{display:flex;flex-direction:column;min-width:0;flex:1}
.row-title{font-weight:600;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.row-sub{font-size:13px;color:var(--muted);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.row-amount{display:flex;flex-direction:column;align-items:flex-end;flex:0 0 auto;gap:1px}
.row-amount-label{font-size:11px;color:var(--muted);text-transform:uppercase;letter-spacing:.04em}
.row-amount-value{font-weight:650}
.row-payment{background:rgba(53,211,153,.04)}
.tag-payment{
  font-size:10px;text-transform:uppercase;letter-spacing:.06em;color:var(--accent);
  border:1px solid rgba(53,211,153,.35);border-radius:999px;padding:1px 7px;
}
.row-activity{gap:14px}

.pager{display:flex;align-items:center;justify-content:space-between;gap:10px;margin-bottom:20px}

.empty{text-align:center;padding:48px 20px;color:var(--muted)}
.empty-icon{font-size:38px;margin-bottom:8px}
.empty .btn{margin-top:10px}

/* ---------- detalle ---------- */
.detail-head{display:flex;align-items:flex-start;gap:14px;margin-bottom:16px}
.detail-icon{
  width:46px;height:46px;flex:0 0 46px;border-radius:13px;background:var(--card-2);
  display:flex;align-items:center;justify-content:center;font-size:22px;
}
.detail-title{font-size:19px}
.detail-amount{margin-left:auto;font-size:22px;font-weight:700;white-space:nowrap}
.detail-payer{display:flex;align-items:center;gap:8px;padding:12px 0;border-top:1px solid var(--line)}
.detail-splits{border-top:1px solid var(--line);padding-top:12px}
.split-row{display:flex;align-items:center;gap:10px;padding:6px 0}
.split-row strong{margin-left:auto}
.split-row span:first-child{display:flex;align-items:center;gap:8px}
.detail-result{
  margin:12px 0;padding:12px 14px;border-radius:12px;background:var(--card-2);font-weight:600;
}
.detail-result.positive{color:var(--green)}
.detail-result.negative{color:var(--red)}
.detail-notes{background:var(--card-2);border-radius:12px;padding:12px 14px;margin-bottom:12px;color:var(--muted)}

/* ---------- comentarios ---------- */
.comments{display:flex;flex-direction:column;gap:14px;margin-bottom:16px}
.comment{display:flex;gap:10px}
.comment-meta{display:flex;align-items:baseline;gap:8px;margin:0 0 2px}
.comment-body{margin:0;color:var(--text)}
.comment-form{display:flex;gap:8px}
.comment-form input{
  flex:1;background:var(--card-2);border:1px solid var(--line);color:var(--text);
  border-radius:10px;padding:10px 12px;
}

/* ---------- formularios ---------- */
.form{display:flex;flex-direction:column;gap:14px}
.form label,.label-text{display:flex;flex-direction:column;gap:6px;font-size:13px;color:var(--muted)}
.form input,.form select,.form textarea{
  background:var(--card-2);border:1px solid var(--line);color:var(--text);
  border-radius:11px;padding:12px 13px;font-size:16px;font-family:inherit;width:100%;
  color-scheme:dark;
}
.form input:focus,.form select:focus,.form textarea:focus{
  outline:none;border-color:var(--accent);box-shadow:0 0 0 3px rgba(53,211,153,.14);
}
.form textarea{resize:vertical}
.grid-2{display:grid;grid-template-columns:1fr 1fr;gap:12px}
.form-actions{display:flex;gap:10px;flex-wrap:wrap;align-items:center;margin-top:4px}

.money-input{display:flex;align-items:center;gap:8px;background:var(--card-2);border:1px solid var(--line);border-radius:11px;padding:0 13px}
.money-input>span{color:var(--muted);font-size:15px}
.money-input input{border:0;background:transparent;padding:12px 0;box-shadow:none!important}
.money-input.small{padding:0 10px;width:130px}
.money-input.small input{padding:8px 0;font-size:15px;text-align:right}

/* ---------- calculadora de boleta ---------- */
.calc-toggle{
  display:flex;align-items:center;gap:8px;align-self:flex-start;
  background:var(--card-2);border:1px solid var(--line);color:var(--muted);
  border-radius:11px;padding:10px 14px;font:inherit;font-size:14px;cursor:pointer;
}
.calc-toggle:hover{color:var(--text)}
.calc-toggle.on{border-color:var(--accent);color:var(--text);background:rgba(53,211,153,.12)}
.calc{
  border:1px solid var(--line);border-radius:var(--radius);
  background:var(--card-2);padding:14px;display:flex;flex-direction:column;gap:12px;
}
.calc>p{margin:0}
.calc-add{display:flex;gap:8px;align-items:stretch}
.calc-add .money-input{flex:1;background:var(--card);border-color:var(--line)}
.calc-add .money-input input{font-size:17px;font-weight:600}
.calc-add .money-input input.is-bad{color:var(--red)}
.calc-add .btn{flex:0 0 auto}
.calc-keys{display:flex;gap:8px;flex-wrap:wrap}
.calc-keys button{
  flex:1 1 0;min-width:46px;background:var(--card);border:1px solid var(--line);color:var(--text);
  border-radius:10px;padding:9px 0;font:inherit;font-size:16px;cursor:pointer;
}
.calc-keys button:hover{border-color:var(--accent);color:var(--accent)}
.calc-list{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:2px;max-height:220px;overflow:auto}
.calc-list li{display:flex;align-items:center;gap:10px;padding:7px 10px;background:var(--card);border-radius:9px}
.calc-num{color:var(--muted);font-size:12px;width:22px;flex:0 0 22px}
.calc-val{flex:1;font-variant-numeric:tabular-nums}
.calc-del{
  background:transparent;border:0;color:var(--muted);font-size:19px;line-height:1;
  cursor:pointer;padding:0 4px;border-radius:6px;
}
.calc-del:hover{color:var(--red)}
.calc-total{
  display:flex;align-items:baseline;justify-content:space-between;gap:10px;
  border-top:1px solid var(--line);padding-top:12px;
}
.calc-total strong{font-size:22px;color:var(--accent);font-variant-numeric:tabular-nums}
.calc-actions{display:flex;gap:8px;flex-wrap:wrap}
.calc-actions .btn{padding:9px 13px;font-size:14px}

.split-box{border:1px solid var(--line);border-radius:var(--radius);padding:14px;margin:0}
.split-box legend{font-size:13px;color:var(--muted);padding:0 6px}
.segmented{display:grid;grid-template-columns:1fr 1fr;gap:8px;margin-bottom:12px}
.seg input{position:absolute;opacity:0;pointer-events:none}
.seg{position:relative;display:block}
.seg span{
  display:block;text-align:center;padding:10px 8px;border-radius:11px;
  background:var(--card-2);border:1px solid var(--line);font-size:13px;color:var(--muted);cursor:pointer;
}
.seg input:checked+span{border-color:var(--accent);color:var(--text);background:rgba(53,211,153,.12)}
.split-panel{display:none}
.split-panel.on{display:block}
.split-line{
  display:flex!important;flex-direction:row!important;align-items:center;justify-content:space-between;
  gap:10px;padding:6px 0;color:var(--text);font-size:15px;
}
.split-line>span:first-child{display:flex;align-items:center;gap:8px}

.color-picker{display:flex;gap:10px;flex-wrap:wrap}
.color-dot{position:relative;cursor:pointer}
.color-dot input{position:absolute;opacity:0;pointer-events:none}
.color-dot span{
  display:block;width:30px;height:30px;border-radius:50%;background:var(--c);
  border:2px solid transparent;box-shadow:0 0 0 2px var(--card);
}
.color-dot input:checked+span{border-color:var(--text);box-shadow:0 0 0 2px var(--card),0 0 0 4px var(--c)}

.danger-zone{margin-top:16px;border-top:1px solid var(--line);padding-top:12px}
.danger-zone summary{cursor:pointer;color:var(--red);font-size:14px}
.danger-zone .form{margin-top:12px}

/* ---------- botones ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  border:1px solid transparent;border-radius:11px;padding:11px 16px;
  font-size:15px;font-weight:600;cursor:pointer;font-family:inherit;
}
.btn-primary{background:var(--accent);color:var(--accent-ink)}
.btn-primary:hover{filter:brightness(1.06)}
.btn-ghost{background:var(--card-2);border-color:var(--line);color:var(--text)}
.btn-ghost:hover{border-color:#3a4250}
.btn-danger{background:transparent;border-color:rgba(255,107,122,.5);color:var(--red)}
.btn-danger:hover{background:rgba(255,107,122,.1)}
.btn.block{width:100%}

.fab{
  position:fixed;right:max(16px,calc(50% - 294px));bottom:24px;z-index:30;
  width:56px;height:56px;border-radius:50%;
  background:var(--accent);color:var(--accent-ink);
  display:flex;align-items:center;justify-content:center;
  box-shadow:0 8px 24px rgba(53,211,153,.3);
}
.fab:hover{filter:brightness(1.06)}

/* ---------- avatares ---------- */
.avatar{
  width:34px;height:34px;flex:0 0 34px;border-radius:50%;
  display:inline-flex;align-items:center;justify-content:center;
  background:color-mix(in srgb,var(--c) 22%,transparent);
  color:var(--c);border:1px solid color-mix(in srgb,var(--c) 45%,transparent);
  font-size:13px;font-weight:700;letter-spacing:.02em;
}
.avatar-lg{width:52px;height:52px;flex:0 0 52px;font-size:18px}
.avatar-xl{width:76px;height:76px;flex:0 0 76px;font-size:26px}
.avatar-xs{width:20px;height:20px;flex:0 0 20px;font-size:9px}
.avatar-photo{object-fit:cover;background:var(--card-2);padding:0;border:1px solid color-mix(in srgb,var(--c) 55%,transparent)}

/* mini foto de quien pagó, encima del icono de categoría */
.row-icon{position:relative}
.row-who{position:absolute;right:-5px;bottom:-5px;display:flex;border-radius:50%;box-shadow:0 0 0 2px var(--card)}
.row:hover .row-who{box-shadow:0 0 0 2px var(--card-2)}

/* subir foto */
.photo-row{display:flex;align-items:center;gap:16px;flex-wrap:wrap}
.photo-actions{flex:1 1 200px;display:flex;flex-direction:column;gap:6px}
.photo-actions p{margin:0}
.form input[type=file]{
  background:var(--card-2);border:1px dashed var(--line);border-radius:11px;
  padding:10px 12px;font-size:13px;color:var(--muted);cursor:pointer;
}
.form input[type=file]::file-selector-button{
  background:var(--card);border:1px solid var(--line);color:var(--text);
  border-radius:8px;padding:6px 12px;margin-right:10px;font:inherit;font-size:13px;cursor:pointer;
}
.check{flex-direction:row!important;align-items:center;gap:8px;font-size:13px}
.check input{width:auto!important}

/* los dos integrantes */
.people{display:flex;gap:22px;flex-wrap:wrap}
.person{display:flex;align-items:center;gap:12px}
.person p{margin:2px 0 0}

/* ---------- avisos ---------- */
.flash{border-radius:12px;padding:12px 14px;margin-bottom:14px;font-size:14px;border:1px solid}
.flash-ok{background:rgba(53,211,153,.1);border-color:rgba(53,211,153,.35);color:var(--green)}
.flash-error{background:rgba(255,107,122,.1);border-color:rgba(255,107,122,.35);color:var(--red)}

/* ---------- login / instalador ---------- */
.auth-body{display:flex;align-items:center;justify-content:center;min-height:100vh;padding:20px}
.auth-wrap{width:100%;max-width:400px}
.auth-title{display:flex;align-items:center;gap:10px;font-size:24px;margin-bottom:6px}
.auth-wrap .card{padding:24px}
.auth-wrap .form{margin-top:18px}

@media (max-width:480px){
  .grid-2{grid-template-columns:1fr}
  .balance-amount{font-size:26px}
  .nav a{padding:6px 8px;font-size:13px}
  .wrap{padding:14px 12px 0}
  .fab{right:16px;bottom:18px}
}