/* onebuckbtc — mismo sistema visual de Compass (crema / verde tinta / lima,
   display Georgia, cuerpo Geist), reducido a lo que usa esta página. */

:root{
  --ink:#11271e;
  --lime:#d8f45c;
  --font-sans:'Geist',ui-sans-serif,system-ui,-apple-system,'Segoe UI',Arial,sans-serif;
  --font-display:Georgia,'Times New Roman',serif;
  color-scheme:light;
  --cream:#f2efe5;
  --paper:#fbfaf6;
  --surface-2:#ebece6;
  --field:#fff;
  --text:#11271e;
  --text-2:#46534c;
  --muted:#56645c;
  --faint:#5a6760;
  --line:rgba(17,39,30,.15);
  --olive:#6e861b;
  --olive-text:#526b08;
  --accent-em:#6f8c12;
  --focus:#526b08;
  --deep:#11271e;
  --chip-on-bg:#11271e;--chip-on-text:#fff;
  --btn-bg:#11271e;--btn-text:#fff;
  --warn-bg:#f6edda;--warn-text:#4d4433;
  --c-valor:#6e861b;
  --neg:#9c3a1e;
  --c-ap:#8a948e;
}
/* Modo oscuro: sigue al sistema salvo que la persona elija otro con el botón. */
@media (prefers-color-scheme:dark){:root:not([data-theme="light"]){
  color-scheme:dark;
  --cream:#0d1813;
  --paper:#15231c;
  --surface-2:#1e2f27;
  --field:#0f1c16;
  --text:#ece8dc;
  --text-2:#cdd3ca;
  --muted:#aab5ad;
  --faint:#9aa69e;
  --line:rgba(236,232,220,.14);
  --olive:#9dbb2a;
  --olive-text:#c3df4a;
  --accent-em:#c3df4a;
  --focus:#d8f45c;
  --deep:#060e0a;
  --chip-on-bg:#d8f45c;--chip-on-text:#11271e;
  --btn-bg:#d8f45c;--btn-text:#11271e;
  --warn-bg:#2b2517;--warn-text:#e6d8b8;
  --c-valor:#b5d23c;
  --neg:#f29a7a;
  --c-ap:#7f8c84;
}}
:root[data-theme="dark"]{
  color-scheme:dark;
  --cream:#0d1813;
  --paper:#15231c;
  --surface-2:#1e2f27;
  --field:#0f1c16;
  --text:#ece8dc;
  --text-2:#cdd3ca;
  --muted:#aab5ad;
  --faint:#9aa69e;
  --line:rgba(236,232,220,.14);
  --olive:#9dbb2a;
  --olive-text:#c3df4a;
  --accent-em:#c3df4a;
  --focus:#d8f45c;
  --deep:#060e0a;
  --chip-on-bg:#d8f45c;--chip-on-text:#11271e;
  --btn-bg:#d8f45c;--btn-text:#11271e;
  --warn-bg:#2b2517;--warn-text:#e6d8b8;
  --c-valor:#b5d23c;
  --neg:#f29a7a;
  --c-ap:#7f8c84;
}

*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{margin:0;background:var(--cream);color:var(--text);font-family:var(--font-sans);-webkit-font-smoothing:antialiased;line-height:1.5}
a{color:inherit}
:focus-visible{outline:2px solid var(--focus);outline-offset:3px;border-radius:4px}
.shell{width:min(860px,calc(100% - 32px));margin-inline:auto}

.nav{height:72px;display:flex;align-items:center;justify-content:space-between;border-bottom:1px solid var(--line)}
.brand{display:flex;align-items:center;gap:10px;font-size:18px;font-weight:750;letter-spacing:-.5px;text-decoration:none}
.brand-mark{display:grid;place-items:center;width:30px;height:30px;border-radius:50%;background:var(--deep);color:var(--lime);flex:none}
.brand-mark svg{width:19px;height:19px;display:block}
.nav-link{font-size:13px;color:var(--text-2);text-decoration:none}
.nav-link:hover{color:var(--olive-text)}
.nav-end{display:flex;align-items:center;gap:16px}
.theme-toggle{display:grid;place-items:center;width:36px;height:36px;border:1px solid var(--line);border-radius:50%;background:transparent;cursor:pointer;color:var(--text);transition:border-color .16s}
.theme-toggle:hover{border-color:var(--text)}
.theme-toggle svg{width:17px;height:17px;fill:none;stroke:currentColor;stroke-width:1.6;stroke-linecap:round;stroke-linejoin:round}
.theme-toggle .ico-sun,.theme-toggle[data-actual="dark"] .ico-moon{display:none}
.theme-toggle[data-actual="dark"] .ico-sun{display:block}

.hero{padding:56px 0 8px;text-align:center}
.kicker{color:var(--olive-text);font-size:11px;font-weight:850;letter-spacing:.16em;text-transform:uppercase}
h1{font:400 clamp(36px,6.4vw,64px)/1.02 var(--font-display);letter-spacing:-.045em;margin:18px 0 28px}
h1 em{color:var(--accent-em)}

.picker{display:flex;flex-direction:column;align-items:center;gap:14px}
.picker label{font-size:13px;color:var(--muted)}
.date{font:400 clamp(24px,4vw,32px)/1 var(--font-display);color:var(--text);background:var(--field);border:1px solid var(--line);border-radius:10px;padding:12px 16px;min-width:240px;text-align:center}
.date:hover{border-color:var(--text)}
.chips{display:flex;flex-wrap:wrap;justify-content:center;gap:8px}
.chip{font:600 13px var(--font-sans);color:var(--text);background:transparent;border:1px solid var(--line);border-radius:999px;padding:7px 13px;cursor:pointer;transition:border-color .16s}
.chip:hover{border-color:var(--text)}
.chip[aria-pressed="true"]{background:var(--chip-on-bg);color:var(--chip-on-text);border-color:var(--chip-on-bg)}

.result{margin:44px 0 0;background:var(--paper);border:1px solid var(--line);border-radius:16px;padding:32px clamp(18px,4vw,36px)}
.result-lead{text-align:center;color:var(--text-2);font-size:15px;margin:0}
.hero-num{text-align:center;font:400 clamp(34px,10vw,80px)/1 var(--font-display);letter-spacing:-.05em;margin:8px 0 0;font-variant-numeric:tabular-nums;white-space:nowrap}

/* Los tres números que responden "¿me convino?" van juntos: valor, invertido, ganancia. */
.trio{display:flex;justify-content:center;margin:22px auto 0;max-width:520px;border-top:1px solid var(--line);padding-top:18px}
.trio>div{flex:1;text-align:center;padding:0 12px}
.trio>div+div{border-left:1px solid var(--line)}
.trio dt{font-size:12px;font-weight:700;letter-spacing:.08em;text-transform:uppercase;color:var(--muted)}
.trio dd{margin:6px 0 0;font:650 clamp(22px,4vw,30px)/1.15 var(--font-sans);letter-spacing:-.03em;font-variant-numeric:tabular-nums;overflow-wrap:anywhere}
.trio .nw{white-space:nowrap}
.trio dd small{display:block;font-size:14px;font-weight:650;letter-spacing:0;margin-top:3px}
.trio .pos{color:var(--olive-text)}
.trio .neg{color:var(--neg)}
.hero-sub{text-align:center;color:var(--faint);font-size:13px;margin:16px 0 0}

/* Detalles: para quien los busque, sin competir con lo principal. */
.details{display:flex;flex-wrap:wrap;gap:8px 28px;margin:22px 0 0;padding-top:16px;border-top:1px solid var(--line);font-size:13px}
.details dt{color:var(--muted)}
.details dd{margin:2px 0 0;font-weight:650;font-variant-numeric:tabular-nums}

.chart-wrap{margin-top:30px}
.chart-head{display:flex;justify-content:space-between;align-items:baseline;gap:12px;flex-wrap:wrap;margin-bottom:8px}
.chart-head h2{font-size:14px;font-weight:700;margin:0}
.legend{display:flex;gap:16px;font-size:12px;color:var(--text-2);list-style:none;margin:0;padding:0}
.legend li{display:flex;align-items:center;gap:6px}
.legend i{display:inline-block;width:14px;height:0;border-top:2px solid var(--c-valor)}
.legend i.ap{border-top:2px dashed var(--c-ap)}
.chart{position:relative;height:280px}
.chart svg{display:block;width:100%;height:100%;overflow:visible}
.chart .grid{stroke:var(--line);stroke-width:1}
.chart .axis{fill:var(--faint);font:11px var(--font-sans)}
.chart .l-valor{fill:none;stroke:var(--c-valor);stroke-width:2;stroke-linejoin:round}
.chart .a-valor{fill:var(--c-valor);opacity:.1}
.chart .l-ap{fill:none;stroke:var(--c-ap);stroke-width:2;stroke-dasharray:5 4}
.chart .cross{stroke:var(--text);stroke-width:1;opacity:.35}
.chart .dot{stroke:var(--paper);stroke-width:2}
.tip{position:absolute;top:0;pointer-events:none;background:var(--deep);color:#ece8dc;border-radius:8px;padding:8px 10px;font-size:12px;line-height:1.45;white-space:nowrap;transform:translateX(-50%);box-shadow:0 6px 18px rgba(0,0,0,.18)}
.tip b{font-weight:650}
.tip .k{color:#aab5ad}

.share{display:flex;justify-content:center;margin-top:26px}
.button{border:0;padding:12px 18px;border-radius:8px;font:700 14px var(--font-sans);cursor:pointer;background:var(--btn-bg);color:var(--btn-text);transition:.18s}

.note{margin:22px 0 0;background:var(--warn-bg);color:var(--warn-text);border-radius:10px;padding:12px 14px;font-size:13px}
.method{margin:48px 0 0;color:var(--text-2);font-size:14px}
.method h2{font:400 26px/1.1 var(--font-display);letter-spacing:-.02em;color:var(--text);margin:0 0 12px}
.method p{margin:0 0 12px}
.method code{font-size:13px;background:var(--surface-2);padding:1px 5px;border-radius:4px}
footer{margin:48px 0 0;padding:22px 0 40px;border-top:1px solid var(--line);color:var(--faint);font-size:12px;display:flex;justify-content:space-between;gap:12px;flex-wrap:wrap}

.sr-only{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap}

@media (max-width:680px){
  .hero{padding-top:36px}
  .chart{height:220px}
}