/* ============================================================
   Robotia Cotizador · app styles  (dark cockpit register)
   ============================================================ */
*,*::before,*::after{box-sizing:border-box}
html,body{margin:0;padding:0}
body{
  background:var(--rb-black);
  color:var(--rb-white);
  font-family:var(--font-display);
  font-weight:400;
  -webkit-font-smoothing:antialiased;
  min-height:100vh;
}
:root{
  --bg:#000;
  --bg-2:#0A0A0A;
  --panel:#111;
  --panel-2:#161616;
  --line:rgba(255,255,255,0.08);
  --line-2:rgba(255,255,255,0.14);
  --ink:#fff;
  --ink-2:rgba(255,255,255,0.66);
  --ink-3:rgba(255,255,255,0.40);
  --ink-4:rgba(255,255,255,0.26);
  --acc:var(--rb-violet);
  --acc-soft:var(--rb-violet-soft);
  --acc-bright:var(--rb-violet-bright);
  --cyan:var(--rb-cyan-digital);
  --warn:var(--rb-terracota);
}
button{font-family:inherit}
::selection{background:rgba(var(--rb-accent-rgb-brand),0.35);color:#fff}

/* ---------- App frame ---------- */
.app{min-height:100vh;display:flex;flex-direction:column}
.topbar{
  height:60px;flex:0 0 auto;display:flex;align-items:center;justify-content:space-between;
  padding:0 32px;border-bottom:1px solid var(--line);background:var(--bg-2);position:sticky;top:0;z-index:20;
}
.brand{display:flex;align-items:center;gap:14px}
.brand img{height:17px;display:block}
.brand .sep{width:1px;height:18px;background:var(--line-2)}
.brand .prod{font-weight:300;font-size:13px;letter-spacing:0.18em;text-transform:uppercase;color:var(--ink-2)}
.brand .prod em{font-style:normal;color:var(--acc-soft)}
.topbar .right{display:flex;align-items:center;gap:18px;font-size:11px;color:var(--ink-3);letter-spacing:0.06em}
.topbar .right .clock{font-variant-numeric:tabular-nums}
.av{width:28px;height:28px;border-radius:9999px;background:linear-gradient(135deg,var(--acc),var(--rb-violet-deep));display:grid;place-items:center;color:#fff;font-weight:600;font-size:11px}

/* ---------- Stepper ---------- */
.stepper{flex:0 0 auto;display:flex;align-items:center;gap:0;padding:14px 32px;border-bottom:1px solid var(--line);background:var(--bg-2);overflow-x:auto}
.step{display:flex;align-items:center;gap:11px;padding-right:14px;white-space:nowrap}
.step .n{width:24px;height:24px;border:1px solid var(--line-2);border-radius:9999px;display:grid;place-items:center;font-size:11px;color:var(--ink-3);font-variant-numeric:tabular-nums;flex:0 0 auto;transition:all .2s}
.step .lbl{font-size:11px;letter-spacing:0.12em;text-transform:uppercase;color:var(--ink-3);transition:color .2s}
.step.done .n{border-color:var(--acc);color:var(--acc-soft)}
.step.active .n{background:var(--acc);border-color:var(--acc);color:#fff}
.step.active .lbl{color:var(--ink)}
.step .line{width:34px;height:1px;background:var(--line-2);margin:0 8px}
.step.clickable{cursor:pointer}
.step.clickable:hover .lbl{color:var(--ink-2)}

/* ---------- Layout ---------- */
.scroll{flex:1 1 auto;overflow-y:auto}
.wrap{max-width:1100px;margin:0 auto;padding:48px 32px 96px}
.wrap.narrow{max-width:760px}
.wrap.wide{max-width:1280px}

.eyebrow{font-size:11px;letter-spacing:0.22em;text-transform:uppercase;color:var(--acc-soft);font-weight:500;display:block}
h1.title{font-weight:300;font-size:44px;letter-spacing:-0.022em;line-height:1.02;margin:10px 0 0}
h1.title .u{color:var(--acc)}
.lede{color:var(--ink-2);font-size:16px;line-height:1.55;max-width:60ch;margin:16px 0 0;font-weight:300}

/* ---------- Buttons ---------- */
.btn{font-size:13px;letter-spacing:0.04em;padding:12px 22px;border:1px solid var(--line-2);background:transparent;color:var(--ink);cursor:pointer;border-radius:var(--r-1);font-weight:500;transition:all .18s;display:inline-flex;align-items:center;gap:9px}
.btn:hover{border-color:var(--acc-soft);color:#fff}
.btn.primary{background:var(--acc);border-color:var(--acc);color:#fff}
.btn.primary:hover{background:var(--rb-violet-dark);border-color:var(--rb-violet-dark)}
.btn.primary:disabled{background:var(--rb-grey-80);border-color:var(--rb-grey-80);color:var(--ink-4);cursor:not-allowed}
.btn.ghost{border-color:transparent;color:var(--ink-2);padding-left:8px;padding-right:8px}
.btn.ghost:hover{color:#fff}
.btn.lg{padding:15px 30px;font-size:14px}
.btn.full{width:100%;justify-content:center}
.btn .arw{font-size:15px;line-height:1}
.btnrow{display:flex;gap:12px;align-items:center;flex-wrap:wrap}
.spacer{flex:1 1 auto}

/* ---------- Forms ---------- */
.formgrid{display:grid;grid-template-columns:1fr 1fr;gap:22px 28px;margin-top:36px}
.field{display:flex;flex-direction:column;gap:9px}
.field.full{grid-column:1/-1}
.field label{font-size:11px;letter-spacing:0.16em;text-transform:uppercase;color:var(--ink-2);font-weight:500}
.field .hint{font-size:12px;color:var(--ink-3);line-height:1.45;font-weight:300}
.input,.select{
  background:var(--panel);border:1px solid var(--line-2);border-radius:var(--r-1);color:var(--ink);
  font-family:inherit;font-size:15px;padding:13px 14px;width:100%;transition:border-color .15s;font-variant-numeric:tabular-nums;
}
.input:focus,.select:focus{outline:none;border-color:var(--acc)}
.input::placeholder{color:var(--ink-4)}

/* number stepper */
.stepper-num{display:flex;align-items:stretch;border:1px solid var(--line-2);border-radius:var(--r-1);width:fit-content;overflow:hidden;background:var(--panel)}
.stepper-num button{width:46px;background:transparent;border:0;color:var(--ink-2);font-size:20px;cursor:pointer;transition:all .15s;font-weight:300}
.stepper-num button:hover{background:rgba(var(--rb-accent-rgb),0.12);color:var(--acc-soft)}
.stepper-num input{width:84px;text-align:center;border:0;border-left:1px solid var(--line);border-right:1px solid var(--line);background:transparent;color:var(--ink);font-family:inherit;font-size:18px;font-variant-numeric:tabular-nums;-moz-appearance:textfield}
.stepper-num input::-webkit-outer-spin-button,.stepper-num input::-webkit-inner-spin-button{-webkit-appearance:none;margin:0}
.stepper-num input:focus{outline:none}

/* ---------- Slider 1-5 ---------- */
.slider{margin-top:6px}
.slider .track{display:flex;gap:6px}
.slider .seg{flex:1;height:8px;background:var(--panel-2);border:1px solid var(--line);border-radius:var(--r-1);cursor:pointer;transition:all .15s}
.slider .seg.on{background:var(--acc);border-color:var(--acc)}
.slider .seg:hover{border-color:var(--acc-soft)}
.slider .scale{display:flex;justify-content:space-between;margin-top:8px}
.slider .scale span{font-size:11px;color:var(--ink-3);font-variant-numeric:tabular-nums;width:20%;text-align:center;cursor:pointer}
.slider .scale span.on{color:var(--acc-soft);font-weight:600}
.slider .desc{margin-top:13px;background:var(--panel);border:1px solid var(--line);border-left:2px solid var(--acc);border-radius:var(--r-1);padding:11px 14px;font-size:13px;color:var(--ink-2);line-height:1.5;min-height:44px}
.slider .desc b{color:var(--ink);font-weight:600}

/* ---------- Modality cards ---------- */
.modality{display:grid;grid-template-columns:1fr 1fr;gap:22px;margin-top:38px}
.modcard{position:relative;border:1px solid var(--line-2);border-radius:var(--r-2);padding:30px;cursor:pointer;background:var(--bg-2);transition:all .2s;overflow:hidden}
.modcard:hover{border-color:var(--acc-soft)}
.modcard.sel{border-color:var(--acc);background:rgba(var(--rb-accent-rgb),0.05)}
.modcard.sel::after{content:"";position:absolute;inset:0;box-shadow:inset 0 0 0 1px var(--acc);border-radius:var(--r-2);pointer-events:none}
.modcard .tag{display:inline-flex;align-items:center;gap:7px;font-size:11px;letter-spacing:0.14em;text-transform:uppercase;font-weight:600;padding:5px 11px;border-radius:var(--r-1)}
.modcard.streaming .tag{background:rgba(var(--rb-accent-rgb-brand),0.16);color:var(--acc-bright)}
.modcard.imagen .tag{background:rgba(59,175,218,0.16);color:var(--cyan)}
.modcard h3{font-weight:300;font-size:30px;letter-spacing:-0.02em;margin:18px 0 0}
.modcard p{color:var(--ink-2);font-size:14px;line-height:1.6;margin:12px 0 0;font-weight:300}
.modcard .meta{margin-top:20px;padding-top:18px;border-top:1px solid var(--line);display:flex;flex-direction:column;gap:7px}
.modcard .meta .m{display:flex;justify-content:space-between;font-size:12px;color:var(--ink-3)}
.modcard .meta .m b{color:var(--ink-2);font-weight:500}
.modcard .check{position:absolute;top:24px;right:24px;width:24px;height:24px;border-radius:9999px;border:1px solid var(--line-2);display:grid;place-items:center;color:transparent;transition:all .2s}
.modcard.sel .check{background:var(--acc);border-color:var(--acc);color:#fff;font-size:13px}

/* ---------- Cards / panels ---------- */
.panel{border:1px solid var(--line);border-radius:var(--r-2);background:var(--bg-2);padding:24px 26px}
.panel h3.ph{font-weight:500;font-size:12px;letter-spacing:0.18em;text-transform:uppercase;color:var(--ink-2);margin:0 0 18px}
.panel h3.ph em{font-style:normal;color:var(--acc-soft)}

/* ---------- Summary screen ---------- */
.summary-grid{display:grid;grid-template-columns:1.4fr 1fr;gap:24px;align-items:start;margin-top:14px}
@media(max-width:980px){.summary-grid{grid-template-columns:1fr}}

.totalcard{border:1px solid var(--line-2);border-radius:var(--r-2);background:linear-gradient(160deg,#140a22 0%,#0a0a0a 70%);padding:32px 34px;position:relative;overflow:hidden}
.totalcard::before{content:"";position:absolute;top:0;left:0;right:0;height:2px;background:linear-gradient(90deg,var(--acc),transparent)}
.totalcard .lbl{font-size:11px;letter-spacing:0.2em;text-transform:uppercase;color:var(--ink-3);font-weight:500}
.totalcard .big{font-weight:300;font-size:76px;line-height:0.95;letter-spacing:-0.03em;font-variant-numeric:tabular-nums;margin:14px 0 0;transition:color .3s}
.totalcard .big .unit{font-size:0.30em;color:var(--ink-3);margin-left:10px;letter-spacing:0}
.totalcard .sub{color:var(--ink-2);font-size:14px;margin-top:12px;font-weight:300}
.totalcard .sub b{color:var(--acc-soft);font-weight:500}
.totalcard .flash{animation:flash .5s ease}
@keyframes flash{0%{color:var(--acc-bright)}100%{color:var(--ink)}}

.metricrow{display:grid;grid-template-columns:repeat(3,1fr);gap:0;border-top:1px solid var(--line);border-bottom:1px solid var(--line);margin-top:24px}
.metric{padding:18px 0;border-left:1px solid var(--line);padding-left:22px}
.metric:first-child{border-left:0;padding-left:0}
.metric .l{font-size:10px;letter-spacing:0.18em;text-transform:uppercase;color:var(--ink-3);font-weight:500}
.metric .v{font-weight:300;font-size:30px;letter-spacing:-0.02em;font-variant-numeric:tabular-nums;margin-top:6px}
.metric .v small{font-size:0.4em;color:var(--ink-3);margin-left:4px}

/* breakdown accordion */
.bd{border:1px solid var(--line);border-radius:var(--r-2);overflow:hidden;background:var(--bg-2)}
.bd .blk{border-top:1px solid var(--line)}
.bd .blk:first-child{border-top:0}
.bd .bhead{display:flex;align-items:center;gap:14px;padding:16px 20px;cursor:pointer;user-select:none;transition:background .15s}
.bd .bhead:hover{background:rgba(255,255,255,0.02)}
.bd .bnum{font-size:11px;color:var(--acc-soft);font-weight:600;font-variant-numeric:tabular-nums;width:22px}
.bd .bname{font-size:14px;color:var(--ink);font-weight:500;flex:1}
.bd .bval{font-variant-numeric:tabular-nums;font-weight:400;font-size:15px;color:var(--ink)}
.bd .bcar{color:var(--ink-3);font-size:11px;transition:transform .2s;width:14px;text-align:center}
.bd .blk.open .bcar{transform:rotate(90deg)}
.bd .bbody{padding:0 20px 4px 56px;overflow:hidden}
.bd .li{display:flex;justify-content:space-between;padding:9px 0;border-top:1px dashed var(--line);font-size:13px;color:var(--ink-2)}
.bd .li:first-child{border-top:0}
.bd .li .lv{font-variant-numeric:tabular-nums;color:var(--ink)}
.bd .li .desc{color:var(--ink-3);font-size:12px}
.bd .total{display:flex;justify-content:space-between;align-items:center;padding:18px 20px;background:rgba(var(--rb-accent-rgb),0.06);border-top:1px solid var(--line-2)}
.bd .total .tl{font-size:12px;letter-spacing:0.14em;text-transform:uppercase;color:var(--ink-2);font-weight:500}
.bd .total .tv{font-variant-numeric:tabular-nums;font-weight:400;font-size:22px;color:#fff}

/* stacked bar viz */
.stackbar{display:flex;height:36px;border-radius:var(--r-1);overflow:hidden;border:1px solid var(--line)}
.stackbar .seg{height:100%;transition:width .4s var(--ease,ease)}
.stackleg{display:flex;flex-wrap:wrap;gap:14px 22px;margin-top:16px}
.stackleg .it{display:flex;align-items:center;gap:8px;font-size:12px;color:var(--ink-2)}
.stackleg .it i{width:11px;height:11px;border-radius:2px;display:inline-block}
.stackleg .it b{color:var(--ink);font-weight:500;font-variant-numeric:tabular-nums}

/* comparison */
.compare{display:flex;flex-direction:column;gap:14px;margin-top:6px}
.cmp{display:grid;grid-template-columns:120px 1fr auto;gap:14px;align-items:center;font-size:13px}
.cmp .cn{color:var(--ink-2)}
.cmp .cbar{height:8px;background:var(--panel-2);border-radius:9999px;overflow:hidden}
.cmp .cbar i{display:block;height:100%;border-radius:9999px}
.cmp .cv{font-variant-numeric:tabular-nums;color:var(--ink);font-weight:500;text-align:right;min-width:78px}
.cmp.you .cn{color:var(--acc-soft);font-weight:600}

/* warnings */
.warns{display:flex;flex-direction:column;gap:10px}
.warn-card{display:flex;gap:13px;align-items:flex-start;border:1px solid var(--line-2);border-left-width:2px;border-radius:var(--r-1);padding:13px 15px;background:var(--bg-2)}
.warn-card.alta{border-left-color:var(--warn);background:rgba(175,60,47,0.07)}
.warn-card.media{border-left-color:var(--acc-soft)}
.warn-card .ic{font-size:12px;font-weight:700;width:18px;height:18px;border-radius:9999px;display:grid;place-items:center;flex:0 0 auto;margin-top:1px}
.warn-card.alta .ic{background:var(--warn);color:#fff}
.warn-card.media .ic{background:rgba(var(--rb-accent-rgb),0.2);color:var(--acc-soft)}
.warn-card .wt{font-size:13px;color:var(--ink-2);line-height:1.5}
.warn-card .wt b{color:var(--ink);text-transform:uppercase;font-size:11px;letter-spacing:0.1em;font-weight:600;display:block;margin-bottom:2px}

/* input recap table */
.recap{width:100%;border-collapse:collapse;font-size:13px}
.recap td{padding:10px 0;border-top:1px solid var(--line);color:var(--ink-2)}
.recap td:last-child{text-align:right;color:var(--ink);font-variant-numeric:tabular-nums}
.recap tr:first-child td{border-top:0}

/* ---------- Welcome / saved list ---------- */
.hero{display:grid;grid-template-columns:1.1fr 1fr;gap:48px;align-items:center;margin-top:20px}
@media(max-width:900px){.hero{grid-template-columns:1fr}}
.hero .anchor{font-weight:300;font-size:30px;line-height:1.25;letter-spacing:-0.01em;color:var(--ink-2);margin-top:24px;max-width:24ch}
.hero .anchor .u{color:var(--acc)}
.hero-art{border:1px solid var(--line);border-radius:var(--r-2);background:radial-gradient(120% 90% at 70% 10%,#1a0a2e 0%,#000 70%);aspect-ratio:4/3;position:relative;overflow:hidden;display:grid;place-items:center}
.hero-art .scan{position:absolute;left:0;right:0;height:1px;background:linear-gradient(90deg,transparent,var(--acc-bright),transparent);box-shadow:0 0 14px var(--acc-bright);animation:scany 3s var(--ease-scan,ease) infinite}
@keyframes scany{0%,100%{top:12%}50%{top:88%}}
.hero-art .grid-lines{position:absolute;inset:0;background-image:linear-gradient(rgba(255,255,255,0.03) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,0.03) 1px,transparent 1px);background-size:38px 38px}
.hero-art .glyph{font-weight:300;font-size:110px;color:var(--acc);position:relative;letter-spacing:-0.04em;text-shadow:0 0 40px rgba(var(--rb-accent-rgb-brand),0.5)}

.saved{margin-top:64px}
.saved-head{display:flex;align-items:baseline;justify-content:space-between;border-bottom:1px solid var(--line);padding-bottom:14px}
.saved-head h2{font-weight:300;font-size:24px;margin:0;letter-spacing:-0.01em}
.saved-head .count{font-size:12px;color:var(--ink-3);letter-spacing:0.1em}
.cot-list{display:grid;grid-template-columns:repeat(2,1fr);gap:14px;margin-top:20px}
@media(max-width:760px){.cot-list{grid-template-columns:1fr}}
.cot{border:1px solid var(--line);border-radius:var(--r-2);background:var(--bg-2);padding:18px 20px;transition:border-color .15s;position:relative}
.cot:hover{border-color:var(--line-2)}
.cot .ct{display:flex;justify-content:space-between;align-items:flex-start;gap:12px}
.cot .cname{font-size:16px;font-weight:500;color:var(--ink)}
.cot .cmod{font-size:10px;letter-spacing:0.12em;text-transform:uppercase;font-weight:600;padding:3px 8px;border-radius:var(--r-1);flex:0 0 auto}
.cot .cmod.streaming{background:rgba(var(--rb-accent-rgb-brand),0.16);color:var(--acc-bright)}
.cot .cmod.imagen{background:rgba(59,175,218,0.16);color:var(--cyan)}
.cot .cmod.conjunto{background:linear-gradient(90deg,rgba(161,0,255,0.16),rgba(59,175,218,0.16));color:var(--acc-bright)}
.cot .cmeta{font-size:12px;color:var(--ink-3);margin-top:5px}
.cot .cbig{font-weight:300;font-size:32px;letter-spacing:-0.02em;font-variant-numeric:tabular-nums;margin-top:16px}
.cot .cbig .u{font-size:0.42em;color:var(--ink-3);margin-left:6px}
.cot .cact{display:flex;gap:6px;margin-top:16px;padding-top:14px;border-top:1px solid var(--line)}
.cot .cact button{font-size:11px;letter-spacing:0.04em;padding:7px 11px;border:1px solid var(--line);background:transparent;color:var(--ink-2);cursor:pointer;border-radius:var(--r-1);transition:all .15s}
.cot .cact button:hover{border-color:var(--acc-soft);color:#fff}
.cot .cact button.del:hover{border-color:var(--warn);color:var(--warn)}
.empty{margin-top:24px;border:1px dashed var(--line-2);border-radius:var(--r-2);padding:40px;text-align:center;color:var(--ink-3);font-size:14px}

/* calibraciones adicionales (streaming) */
.callist{display:flex;flex-direction:column;gap:10px;margin-top:8px}
.calrow{display:grid;grid-template-columns:1fr 200px auto;gap:12px;align-items:center;background:var(--panel);border:1px solid var(--line);border-radius:var(--r-1);padding:10px 12px}
.calrow .mini-slider{display:flex;gap:4px}
.calrow .mini-slider .s{width:26px;height:24px;border:1px solid var(--line);border-radius:2px;background:var(--panel-2);color:var(--ink-3);font-size:11px;display:grid;place-items:center;cursor:pointer;font-variant-numeric:tabular-nums}
.calrow .mini-slider .s.on{background:var(--acc);border-color:var(--acc);color:#fff}
.calrow .rm{width:32px;height:32px;border:1px solid var(--line);background:transparent;color:var(--ink-3);cursor:pointer;border-radius:2px;font-size:16px}
.calrow .rm:hover{border-color:var(--warn);color:var(--warn)}
.addcal{margin-top:10px;font-size:12px;color:var(--acc-soft);background:transparent;border:1px dashed var(--line-2);border-radius:var(--r-1);padding:9px 14px;cursor:pointer;letter-spacing:0.04em}
.addcal:hover{border-color:var(--acc-soft);color:#fff}

/* checkbox */
.chk{display:flex;align-items:flex-start;gap:11px;cursor:pointer;margin-top:6px}
.chk .box{width:18px;height:18px;border:1px solid var(--line-2);border-radius:2px;flex:0 0 auto;margin-top:1px;display:grid;place-items:center;color:transparent;transition:all .15s}
.chk.on .box{background:var(--acc);border-color:var(--acc);color:#fff;font-size:12px}
.chk .ct{font-size:13px;color:var(--ink-2);line-height:1.5}
.chk .ct b{color:var(--ink);font-weight:500}

/* toast */
.toast{position:fixed;bottom:28px;left:50%;transform:translateX(-50%) translateY(20px);background:var(--panel);border:1px solid var(--acc);border-radius:var(--r-2);padding:14px 22px;font-size:14px;color:#fff;box-shadow:0 12px 40px rgba(0,0,0,0.6);opacity:0;pointer-events:none;transition:all .3s;z-index:50;display:flex;align-items:center;gap:10px}
.toast.show{opacity:1;transform:translateX(-50%) translateY(0)}
.toast .ok{color:var(--acc-soft);font-weight:700}

.footnote{margin-top:40px;padding-top:20px;border-top:1px solid var(--line);font-size:12px;color:var(--ink-4);line-height:1.6;max-width:90ch}
.footnote .u{color:var(--acc)}

/* section subhead */
.subhead{font-size:11px;letter-spacing:0.18em;text-transform:uppercase;color:var(--ink-3);font-weight:500;margin:34px 0 0}

/* method / info note (azul cyan = dato/metodología, acento secundario) */
/* margen global */
.globalmargin{display:flex;align-items:center;gap:18px;border:1px solid var(--line-2);border-radius:var(--r-2);background:var(--panel);padding:16px 20px;margin-top:14px;flex-wrap:wrap}
.globalmargin .gm-text{flex:1 1 280px;min-width:0}
.globalmargin .gm-label{font-size:12px;letter-spacing:0.08em;text-transform:uppercase;color:var(--ink);font-weight:600}
.globalmargin .gm-hint{font-size:12px;color:var(--ink-3);line-height:1.45;margin-top:4px;font-weight:300}
.globalmargin .gm-hint b{color:var(--ink-2);font-weight:500}
.globalmargin input[type=range]{flex:1 1 160px;accent-color:var(--acc);min-width:120px}
.globalmargin .gm-val{font-variant-numeric:tabular-nums;font-size:18px;color:var(--acc-soft);font-weight:600;width:54px;text-align:right}

/* tabs de modalidad (conjunto) */
.modtabs{display:inline-flex;border:1px solid var(--line-2);border-radius:var(--r-1);overflow:hidden;background:var(--panel)}
.modtabs button{background:transparent;border:0;color:var(--ink-3);font-family:inherit;font-size:13px;letter-spacing:0.06em;padding:11px 22px;cursor:pointer;font-weight:500;transition:all .15s;display:flex;align-items:center;gap:9px}
.modtabs button.on.streaming{background:var(--acc);color:#fff}
.modtabs button.on.imagen{background:var(--cyan);color:#04222b}
.modtabs button.on.total{background:linear-gradient(90deg,var(--acc),var(--cyan));color:#fff}
.modtabs button:not(.on):hover{color:var(--ink)}
.modtabs .dot{width:7px;height:7px;border-radius:9999px;background:currentColor;opacity:0.7}

/* sinergia slider (0–5) */
.synergy{border:1px solid var(--line-2);border-radius:var(--r-2);background:var(--bg-2);padding:22px 24px}
.synergy .track{display:flex;gap:6px}
.synergy .seg{flex:1;height:10px;background:var(--panel-2);border:1px solid var(--line);border-radius:var(--r-1);cursor:pointer;transition:all .15s}
.synergy .seg.on{background:var(--cyan);border-color:var(--cyan)}
.synergy .seg:hover{border-color:var(--cyan)}
.synergy .scale{display:flex;justify-content:space-between;margin-top:8px}
.synergy .scale span{font-size:11px;color:var(--ink-3);font-variant-numeric:tabular-nums;width:16.6%;text-align:center;cursor:pointer}
.synergy .scale span.on{color:var(--cyan);font-weight:600}
.synergy .desc{margin-top:14px;background:var(--panel);border:1px solid var(--line);border-left:2px solid var(--cyan);border-radius:var(--r-1);padding:12px 15px;font-size:13px;color:var(--ink-2);line-height:1.5;display:flex;justify-content:space-between;align-items:center;gap:16px}
.synergy .desc b{color:var(--ink);font-weight:600}
.synergy .desc .save{font-variant-numeric:tabular-nums;color:var(--cyan);font-weight:600;font-size:18px;white-space:nowrap}

.method-note{margin-top:16px;background:var(--panel);border:1px solid var(--line);border-left:2px solid var(--cyan);border-radius:var(--r-1);padding:13px 16px;font-size:12.5px;color:var(--ink-2);line-height:1.58;max-width:96ch}
.method-note b{color:var(--ink);font-weight:600}

/* ============================================================
   VENTA · márgenes, matriz, gráfico escalonado
   ============================================================ */
/* view toggle (Costos / Venta) */
.viewtoggle{display:inline-flex;border:1px solid var(--line-2);border-radius:var(--r-1);overflow:hidden;background:var(--panel)}
.viewtoggle button{background:transparent;border:0;color:var(--ink-3);font-family:inherit;font-size:12px;letter-spacing:0.1em;text-transform:uppercase;padding:9px 18px;cursor:pointer;font-weight:500;transition:all .15s;white-space:nowrap}
.viewtoggle button.on{background:var(--acc);color:#fff}
.viewtoggle button:not(.on):hover{color:var(--ink)}

/* margen por ítem */
.margins{display:flex;flex-direction:column;gap:0;border:1px solid var(--line);border-radius:var(--r-2);overflow:hidden;background:var(--bg-2);margin-top:14px}
.mrow{display:grid;grid-template-columns:36px 1fr 150px 120px 120px;gap:16px;align-items:center;padding:14px 20px;border-top:1px solid var(--line)}
.mrow:first-child{border-top:0}
.mrow.head{background:var(--panel);border-top:0}
.mrow.head span{font-size:10px;letter-spacing:0.16em;text-transform:uppercase;color:var(--ink-3);font-weight:500}
.mrow .mnum{font-size:11px;color:var(--acc-soft);font-weight:600;font-variant-numeric:tabular-nums}
.mrow .mname{font-size:14px;color:var(--ink);font-weight:500}
.mrow .mcost{font-variant-numeric:tabular-nums;color:var(--ink-3);font-size:13px;text-align:right}
.mrow .mprice{font-variant-numeric:tabular-nums;color:var(--ink);font-size:15px;text-align:right;font-weight:500}
.mrow.foot{background:rgba(var(--rb-accent-rgb),0.06);border-top:1px solid var(--line-2)}
.mrow.foot .mname{font-weight:600}
.mrow.foot .mprice{color:var(--acc-soft);font-size:17px}
.margin-slider{display:flex;align-items:center;gap:10px}
.margin-slider input[type=range]{flex:1;accent-color:var(--acc);min-width:0}
.margin-slider .mval{font-variant-numeric:tabular-nums;font-size:13px;color:var(--acc-soft);font-weight:600;width:42px;text-align:right}

/* margen proyecto big readout */
.projmargin{display:grid;grid-template-columns:repeat(3,1fr);gap:0;border:1px solid var(--line-2);border-radius:var(--r-2);overflow:hidden;margin-top:18px}
.projmargin .pm{padding:20px 22px;border-left:1px solid var(--line)}
.projmargin .pm:first-child{border-left:0}
.projmargin .pm .l{font-size:10px;letter-spacing:0.18em;text-transform:uppercase;color:var(--ink-3);font-weight:500}
.projmargin .pm .v{font-weight:300;font-size:34px;letter-spacing:-0.02em;font-variant-numeric:tabular-nums;margin-top:6px}
.projmargin .pm .v small{font-size:0.42em;color:var(--ink-3);margin-left:4px}
.projmargin .pm.accent .v{color:var(--acc-soft)}

/* matriz escalabilidad */
.matwrap{overflow-x:auto;border:1px solid var(--line);border-radius:var(--r-2);background:var(--bg-2)}
table.matrix{border-collapse:collapse;width:100%;font-variant-numeric:tabular-nums}
table.matrix th,table.matrix td{padding:13px 16px;text-align:right;font-size:14px;border-left:1px solid var(--line);border-top:1px solid var(--line);white-space:nowrap}
table.matrix thead th{background:var(--panel);font-size:10px;letter-spacing:0.12em;text-transform:uppercase;color:var(--ink-2);font-weight:600;border-top:0}
table.matrix th:first-child,table.matrix td:first-child{border-left:0;text-align:left;color:var(--ink-2);font-size:12px;letter-spacing:0.04em}
table.matrix tbody th{background:transparent;font-weight:500}
table.matrix td{color:var(--ink);transition:background .2s}
table.matrix td .sub{display:block;font-size:10px;color:var(--ink-4);font-weight:400;margin-top:2px}
table.matrix td.best{background:rgba(var(--rb-accent-rgb-brand),0.18);color:#fff;box-shadow:inset 0 0 0 1px var(--acc)}
table.matrix td.best .sub{color:var(--acc-bright)}
table.matrix td.basecell{background:rgba(255,255,255,0.03)}
.matlabel{display:flex;align-items:center;gap:8px;font-size:11px;color:var(--ink-3);margin-top:12px}
.matlabel i{width:11px;height:11px;border-radius:2px;display:inline-block}

/* gráfico escalonado */
.chartcard{border:1px solid var(--line);border-radius:var(--r-2);background:var(--bg-2);padding:24px 26px}
.chart-step-line{fill:none;stroke:var(--acc);stroke-width:2.5;vector-effect:non-scaling-stroke}
.chart-step-fill{fill:rgba(var(--rb-accent-rgb-brand),0.10)}
.chart-base-line{fill:none;stroke:var(--ink-4);stroke-width:1;stroke-dasharray:4 4;vector-effect:non-scaling-stroke}
.chart-dot{fill:var(--acc);stroke:#000;stroke-width:2}
.chart-grid{stroke:var(--line);stroke-width:1;vector-effect:non-scaling-stroke}
.chart-axis-txt{fill:var(--ink-3);font-size:11px;font-family:var(--font-display);font-variant-numeric:tabular-nums}
.chart-step-lbl{fill:var(--ink);font-size:12px;font-family:var(--font-display);font-weight:600;font-variant-numeric:tabular-nums}
.chart-drop{stroke:var(--acc-soft);stroke-width:1.5;stroke-dasharray:3 3;vector-effect:non-scaling-stroke}

/* year picker chips */
.yrchips{display:flex;gap:6px;flex-wrap:wrap}
.yrchips button{background:var(--panel);border:1px solid var(--line-2);color:var(--ink-3);font-family:inherit;font-size:12px;padding:7px 14px;border-radius:var(--r-1);cursor:pointer;font-variant-numeric:tabular-nums;transition:all .15s}
.yrchips button.on{background:var(--acc);border-color:var(--acc);color:#fff}
.yrchips button:not(.on):hover{border-color:var(--acc-soft);color:var(--ink)}

/* steps editor */
.stepchips{display:flex;gap:10px;flex-wrap:wrap;align-items:center;margin-top:8px}
.stepchip{display:flex;align-items:center;gap:8px;background:var(--panel);border:1px solid var(--line-2);border-radius:var(--r-1);padding:6px 8px 6px 14px}
.stepchip.base{border-color:var(--line);opacity:0.8}
.stepchip .sp-lbl{font-size:10px;letter-spacing:0.1em;text-transform:uppercase;color:var(--ink-4)}
.stepchip input{width:64px;background:transparent;border:0;color:var(--ink);font-family:inherit;font-size:15px;font-variant-numeric:tabular-nums;text-align:center;border-bottom:1px solid var(--line-2)}
.stepchip input:focus{outline:none;border-color:var(--acc)}
.stepchip .rm{width:26px;height:26px;border:1px solid var(--line);background:transparent;color:var(--ink-3);cursor:pointer;border-radius:2px;font-size:14px}
.stepchip .rm:hover{border-color:var(--warn);color:var(--warn)}
.stepadd{background:transparent;border:1px dashed var(--line-2);border-radius:var(--r-1);padding:8px 14px;color:var(--acc-soft);cursor:pointer;font-size:12px;letter-spacing:0.04em}
.stepadd:hover{border-color:var(--acc-soft);color:#fff}

/* margin range (m0 → mf) */
.mrange{display:grid;grid-template-columns:1fr 1fr;gap:20px;margin-top:8px}

/* ============================================================
   PRINT (PDF export) — §8.1
   ============================================================ */
.print-only{display:none}
@media print{
  @page{size:A4 portrait;margin:14mm}
  body{background:#fff!important;color:#111!important}
  .topbar,.stepper,.no-print,.toast{display:none!important}
  .scroll{overflow:visible!important}
  .print-only{display:block}
  .app-screen{display:none!important}
  #print-doc{display:block!important}
  /* chart legible sobre blanco en impresión */
  #print-doc .chart-axis-txt,#print-doc .chart-step-lbl{fill:#333!important}
  #print-doc .chart-grid{stroke:#e0e0e0!important}
  #print-doc .chart-base-line{stroke:#bbb!important}
  #print-doc .chart-step-line{stroke:#A100FF!important}
  #print-doc .chart-step-fill{fill:rgba(161,0,255,0.08)!important}
  #print-doc .chart-dot{fill:#A100FF!important;stroke:#fff!important}
  #print-doc .chart-drop{stroke:#c9a6e8!important}
}