:root{
  --bg:#0b1220;
  --surface:#131c2e;
  --surface-2:#1b2740;
  --line:#27344f;
  --text:#e8eef7;
  --muted:#8a99b5;
  --accent:#14b8a6;
  --accent-2:#0f766e;
  --low:#22c55e;
  --mid:#f59e0b;
  --high:#ef4444;
  --shadow:0 8px 24px rgba(0,0,0,.35);
  --r:16px;
}
*{box-sizing:border-box;margin:0;padding:0}
html,body{height:100%}
body{
  font-family:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,sans-serif;
  background:var(--bg);
  color:var(--text);
  -webkit-tap-highlight-color:transparent;
  padding-bottom:env(safe-area-inset-bottom);
}

/* topbar */
.topbar{
  position:sticky;top:0;z-index:20;
  display:flex;align-items:baseline;justify-content:space-between;
  padding:calc(14px + env(safe-area-inset-top)) 18px 14px;
  background:linear-gradient(180deg,var(--bg) 70%,transparent);
}
.topbar h1{font-size:24px;font-weight:700;letter-spacing:-.02em}
.topbar-date{color:var(--muted);font-size:13px}

#app{padding:0 16px 96px;max-width:680px;margin:0 auto}

/* screens */
.screen{display:none;animation:fade .25s ease}
.screen.active{display:block}
@keyframes fade{from{opacity:0;transform:translateY(6px)}to{opacity:1;transform:none}}

/* cards */
.card{
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--r);
  padding:18px;margin-bottom:16px;
  box-shadow:var(--shadow);
}
.card-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:12px}
.card h2{font-size:16px;font-weight:600;margin-bottom:12px}
.card-head h2{margin-bottom:0}
.tip{background:linear-gradient(135deg,var(--surface-2),var(--surface));font-size:14px;line-height:1.5;color:var(--muted)}
.tip strong{color:var(--text)}

/* hero */
.hero{
  display:flex;align-items:center;justify-content:space-between;
  background:linear-gradient(135deg,var(--accent-2),#0d5b54);
  border-radius:var(--r);padding:22px;margin-bottom:16px;box-shadow:var(--shadow);
}
.hero-label{font-size:13px;opacity:.85}
.hero-value{display:block;font-size:46px;font-weight:800;line-height:1.05;letter-spacing:-.03em}
.hero-value small{font-size:18px;font-weight:600;opacity:.8;margin-left:4px}
.hero-delta{font-size:14px;font-weight:600}
.hero-delta.down{color:#bbf7d0}
.hero-delta.up{color:#fecaca}
.hero-ring{width:64px;height:64px}

/* stat grid */
.grid-2{display:grid;grid-template-columns:1fr 1fr;gap:12px;margin-bottom:16px}
.stat-card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r);
  padding:16px;text-align:left;
}
.stat-label{display:block;font-size:12px;color:var(--muted);margin-bottom:4px}
.stat-value{display:block;font-size:28px;font-weight:700;letter-spacing:-.02em}
.stat-sub{display:block;font-size:12px;color:var(--muted);margin-top:2px}

/* chart */
.chart{width:100%;height:160px;margin-bottom:8px}
.chart svg{width:100%;height:100%;overflow:visible}
.chart-empty{display:flex;align-items:center;justify-content:center;height:100%;color:var(--muted);font-size:13px}

/* forms */
.form label{display:block;font-size:13px;color:var(--muted);margin-bottom:12px}
.form .row{display:flex;gap:12px}
.form .row label{flex:1}
input,textarea,.select{
  width:100%;margin-top:6px;
  background:var(--surface-2);border:1px solid var(--line);border-radius:12px;
  color:var(--text);font-size:16px;padding:12px 14px;
  font-family:inherit;
}
textarea{resize:vertical}
input:focus,textarea:focus,.select:focus{outline:none;border-color:var(--accent)}
input[readonly]{opacity:.7}

.btn-primary{
  width:100%;border:none;border-radius:12px;
  background:var(--accent);color:#04221f;font-weight:700;font-size:16px;
  padding:14px;margin-top:4px;cursor:pointer;
}
.btn-primary:active{transform:scale(.99)}
.btn-ghost{background:none;border:1px solid var(--line);color:var(--accent);
  border-radius:10px;padding:6px 12px;font-size:13px;font-weight:600;cursor:pointer}

/* carb picker */
.carb-pick{display:flex;gap:8px;margin-top:6px}
.carb{flex:1;border:1px solid var(--line);background:var(--surface-2);color:var(--muted);
  border-radius:12px;padding:12px;font-weight:600;cursor:pointer}
.carb.low.sel{background:var(--low);color:#052e16;border-color:var(--low)}
.carb.mid.sel{background:var(--mid);color:#3d2700;border-color:var(--mid)}
.carb.high.sel{background:var(--high);color:#450a0a;border-color:var(--high)}

/* lists */
.list{list-style:none}
.list li{
  display:flex;align-items:center;gap:12px;
  padding:12px 0;border-top:1px solid var(--line);
}
.list li:first-child{border-top:none}
.li-main{flex:1;min-width:0}
.li-title{font-size:15px;font-weight:600}
.li-sub{font-size:12px;color:var(--muted);margin-top:2px}
.li-val{font-size:16px;font-weight:700}
.dot{width:10px;height:10px;border-radius:50%;flex:none}
.dot.low{background:var(--low)}.dot.mid{background:var(--mid)}.dot.high{background:var(--high)}
.del{background:none;border:none;color:var(--muted);font-size:18px;cursor:pointer;padding:4px 8px}

/* quick actions */
.quick{display:grid;grid-template-columns:repeat(3,1fr);gap:12px;margin-top:4px}
.quick-btn{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r);
  padding:18px 8px;font-size:26px;color:var(--text);cursor:pointer;
  display:flex;flex-direction:column;align-items:center;gap:6px;
}
.quick-btn span{font-size:12px;color:var(--muted);font-weight:600}

/* file box */
.filebox{display:block;border:2px dashed var(--line);border-radius:12px;
  padding:22px;text-align:center;cursor:pointer;color:var(--accent);font-weight:600}
.muted{color:var(--muted);font-size:13px;margin-bottom:12px;line-height:1.5}
.muted strong{color:var(--text)}

/* photo grid */
.photo-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:8px}
.photo-cell{position:relative;aspect-ratio:3/4;border-radius:12px;overflow:hidden;background:var(--surface-2)}
.photo-cell img{width:100%;height:100%;object-fit:cover}
.photo-cell .cap{position:absolute;left:0;right:0;bottom:0;padding:4px 6px;
  font-size:10px;background:linear-gradient(0deg,rgba(0,0,0,.75),transparent);color:#fff}
.photo-cell.sel{outline:3px solid var(--accent)}
.photo-del{position:absolute;top:4px;right:4px;background:rgba(0,0,0,.6);border:none;
  color:#fff;border-radius:50%;width:24px;height:24px;font-size:13px;cursor:pointer}

/* modal */
.modal{position:fixed;inset:0;background:rgba(0,0,0,.85);z-index:50;
  display:flex;align-items:center;justify-content:center;padding:16px}
.modal[hidden]{display:none}
.modal-inner{width:100%;max-width:680px}
.compare-wrap{display:grid;grid-template-columns:1fr 1fr;gap:8px;margin-bottom:16px}
.compare-col label{display:block;text-align:center;font-size:12px;color:var(--muted);margin-bottom:6px}
.compare-col>div{aspect-ratio:3/4;border-radius:12px;overflow:hidden;background:var(--surface-2)}
.compare-col img{width:100%;height:100%;object-fit:cover}

/* tabbar */
.tabbar{
  position:fixed;left:0;right:0;bottom:0;z-index:30;
  display:flex;justify-content:space-around;
  background:var(--surface);border-top:1px solid var(--line);
  padding:8px 0 calc(8px + env(safe-area-inset-bottom));
}
.tab{
  background:none;border:none;color:var(--muted);font-size:20px;cursor:pointer;
  display:flex;flex-direction:column;align-items:center;gap:3px;flex:1;
}
.tab span{font-size:10px;font-weight:600}
.tab.active{color:var(--accent)}

.toast{
  position:fixed;left:50%;bottom:90px;transform:translateX(-50%) translateY(20px);
  background:var(--accent);color:#04221f;font-weight:700;
  padding:12px 20px;border-radius:999px;opacity:0;transition:.25s;z-index:60;
  box-shadow:var(--shadow);
}
.toast.show{opacity:1;transform:translateX(-50%) translateY(0)}

.version{text-align:center;color:var(--muted);font-size:11px;opacity:.6;margin:8px 0 0}

/* ciclo menstrual */
.cycle-big{font-size:42px;font-weight:800;text-align:center;letter-spacing:-.03em;margin:4px 0 6px;color:var(--accent)}
.cycle-big small{display:block;font-size:13px;font-weight:600;color:var(--muted);letter-spacing:0;margin-top:2px}
.cycle-tab{width:100%;font-size:14px;margin-top:4px}
.cycle-tab td{padding:7px 0;border-bottom:1px solid var(--line)}
.cycle-tab tr:last-child td{border-bottom:none}
.cycle-tab td:last-child{text-align:right}
.cycle-note{font-size:13px;color:var(--mid);margin-top:10px;line-height:1.5}

/* ===== ampliaciones ===== */
.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:10px;margin-bottom:16px}
.grid-3 .stat-card{padding:14px;cursor:pointer}
.grid-3 .stat-value{font-size:22px}

/* racha / streak */
.streak-card{display:flex;align-items:center;justify-content:space-between}
.streak{display:block;font-size:22px;font-weight:800;margin-top:4px;letter-spacing:-.02em}

/* resumen calorías */
.kcal-summary .kcal-badge{font-size:14px;font-weight:700;color:var(--accent)}
.kbar{height:12px;background:var(--surface-2);border-radius:999px;overflow:hidden;margin:6px 0}
.kbar-fill{height:100%;width:0;border-radius:999px;background:var(--accent);transition:width .4s,background .3s}
.kbar-fill.over{background:var(--high)}

/* agregar alimento / suplemento */
.add-food{display:flex;gap:8px;margin-top:6px}
.add-food input[type="text"],.add-food input[list]{flex:1}
.add-food #food-qty{width:64px;flex:none;text-align:center}
.add-food .btn-ghost{flex:none;font-size:20px;padding:0 16px}

/* chips de items de comida */
.chip-list{list-style:none;display:flex;flex-wrap:wrap;gap:8px;margin:4px 0 12px}
.chip-list li{display:flex;align-items:center;gap:6px;background:var(--surface-2);
  border:1px solid var(--line);border-radius:999px;padding:6px 10px;font-size:13px}
.chip-list .chip-dot{width:8px;height:8px;border-radius:50%}
.chip-list .chip-dot.bajo{background:var(--low)}.chip-list .chip-dot.medio{background:var(--mid)}.chip-list .chip-dot.alto{background:var(--high)}
.chip-list .chip-x{background:none;border:none;color:var(--muted);cursor:pointer;font-size:14px;padding:0 0 0 2px}

/* subtabs */
.subtabs{display:flex;gap:6px;background:var(--surface);border:1px solid var(--line);
  border-radius:12px;padding:4px;margin-bottom:16px}
.subtab{flex:1;background:none;border:none;color:var(--muted);font-weight:600;font-size:13px;
  padding:9px 4px;border-radius:9px;cursor:pointer}
.subtab.active{background:var(--accent);color:#04221f}
.subpanel{display:none;animation:fade .2s ease}
.subpanel.active{display:block}

/* plan semanal */
.week-grid{display:flex;flex-direction:column;gap:10px}
.week-day{background:var(--surface);border:1px solid var(--line);border-radius:14px;padding:12px}
.week-day h3{font-size:14px;margin-bottom:8px;text-transform:capitalize}
.week-slots{display:grid;grid-template-columns:repeat(3,1fr);gap:6px}
.slot{background:var(--surface-2);border:1px dashed var(--line);border-radius:10px;
  padding:8px 6px;min-height:54px;cursor:pointer;font-size:11px;color:var(--muted);text-align:center}
.slot.filled{border-style:solid;color:var(--text);font-weight:600;border-color:var(--accent-2)}
.slot small{display:block;font-size:9px;color:var(--accent);margin-bottom:2px;text-transform:uppercase}

/* recetas */
.recipe-list{display:grid;gap:12px}
.recipe-card{background:var(--surface);border:1px solid var(--line);border-radius:14px;padding:14px;cursor:pointer;display:flex;justify-content:space-between;align-items:center}
.recipe-card .r-name{font-weight:700;font-size:15px}
.recipe-card .r-tag{font-size:12px;color:var(--muted);margin-top:2px}
.recipe-card .r-kcal{font-size:13px;font-weight:700;color:var(--accent);white-space:nowrap}
#recipe-detail h2{font-size:20px;margin-bottom:4px}
#recipe-detail .r-tag{color:var(--muted);margin-bottom:12px;display:block}
#recipe-detail h4{font-size:13px;color:var(--accent);margin:12px 0 6px;text-transform:uppercase;letter-spacing:.04em}
#recipe-detail ul,#recipe-detail ol{padding-left:18px;font-size:14px;line-height:1.6}

/* check-list suplementos */
.check-list{list-style:none}
.check-list li{display:flex;align-items:center;gap:12px;padding:12px 0;border-top:1px solid var(--line)}
.check-list li:first-child{border-top:none}
.check-list .cb{width:26px;height:26px;border-radius:8px;border:2px solid var(--line);
  display:flex;align-items:center;justify-content:center;cursor:pointer;flex:none;font-size:16px}
.check-list .cb.on{background:var(--accent);border-color:var(--accent);color:#04221f}
.check-list .name{flex:1;font-size:15px;font-weight:600}

/* escalas síntomas */
.scale{display:flex;gap:6px;margin-top:6px}
.scale button{flex:1;background:var(--surface-2);border:1px solid var(--line);color:var(--muted);
  border-radius:10px;padding:10px 2px;font-size:15px;cursor:pointer;font-weight:600}
.scale button.sel{background:var(--accent);border-color:var(--accent);color:#04221f}
.toggle-row{display:flex !important;align-items:center;justify-content:space-between}
.switch{width:auto !important;margin:0 !important;transform:scale(1.4)}

/* análisis con semáforo */
.lab-entry{border-top:1px solid var(--line);padding:12px 0}
.lab-entry:first-child{border-top:none}
.lab-entry .le-date{font-size:13px;color:var(--muted);margin-bottom:8px;display:flex;justify-content:space-between}
.lab-rows{display:grid;gap:4px}
.lab-row{display:flex;align-items:center;gap:8px;font-size:14px}
.lab-row .lr-name{flex:1;color:var(--muted)}
.lab-row .lr-val{font-weight:700}
.lab-row.high .lr-val{color:var(--high)}.lab-row.warn .lr-val{color:var(--mid)}
.lab-row.ok .lr-val{color:var(--low)}.lab-row.low .lr-val{color:#60a5fa}
.lab-row .lr-ref{font-size:11px;color:var(--muted)}

/* sheet modal */
.modal-inner.sheet{background:var(--surface);border:1px solid var(--line);border-radius:18px;
  padding:20px;max-height:85vh;overflow:auto}
#summary-content h2{font-size:20px;margin-bottom:4px}
#summary-content h3{font-size:14px;color:var(--accent);margin:16px 0 6px}
#summary-content table{width:100%;border-collapse:collapse;font-size:13px}
#summary-content td{padding:4px 0;border-bottom:1px solid var(--line)}
#summary-content .muted{margin:0}

@media print{
  body *{visibility:hidden}
  #summary-modal,#summary-modal *{visibility:visible}
  #summary-modal{position:absolute;inset:0;background:#fff;color:#000;padding:20px}
  .modal-inner.sheet{background:#fff;color:#000;max-height:none;border:none}
  #summary-content h2,#summary-content h3{color:#000}
  #summary-print,#summary-close{display:none}
}