/* Stylish Inversions — tema oscuro tecnologico */
:root {
  --bg: #0a0c10;
  --bg-2: #0e1218;
  --surface: #121720;
  --surface-2: #181e29;
  --line: #232b39;
  --line-2: #2e3848;
  --text: #e9ecf1;
  --muted: #8d97a8;
  --dim: #5f6a7c;
  --gold: #d4b068;          /* dorado del logo */
  --gold-2: #e6c98a;
  --gold-dim: rgba(212, 176, 104, .14);
  --up: #3ecf8e;
  --down: #ef5b5b;
  --warn: #e8a23a;
  --btc: #f7931a;
  --eth: #7d8ff5;
  --radius: 14px;
  --max: 1180px;
  --font: 'Inter', system-ui, -apple-system, 'Segoe UI', sans-serif;
  --display: 'Space Grotesk', 'Inter', system-ui, sans-serif;
  --mono: 'JetBrains Mono', ui-monospace, 'SF Mono', Consolas, monospace;
}

* { box-sizing: border-box; margin: 0; padding: 0; }
[hidden] { display: none !important; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body {
  font-family: var(--font);
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
  font-size: 16px;
  min-height: 100vh;
  display: flex; flex-direction: column;
  background-image:
    radial-gradient(900px 500px at 85% -10%, rgba(212,176,104,.09), transparent 60%),
    radial-gradient(700px 500px at -10% 20%, rgba(125,143,245,.06), transparent 60%);
  background-repeat: no-repeat;
}
main { flex: 1; }
a { color: var(--gold); text-decoration: none; }
a:hover { color: var(--gold-2); }
img, svg, canvas { max-width: 100%; }
h1, h2, h3 { font-family: var(--display); line-height: 1.12; letter-spacing: -.01em; font-weight: 700; }
h1 { font-size: clamp(2.1rem, 5.2vw, 3.7rem); }
h2 { font-size: clamp(1.5rem, 3vw, 2.1rem); }
h3 { font-size: 1.15rem; }
p { color: var(--muted); }
strong { color: var(--text); font-weight: 600; }
.mono { font-family: var(--mono); font-variant-numeric: tabular-nums; }
.wrap { width: 100%; max-width: var(--max); margin: 0 auto; padding: 0 20px; }
.section { padding-block: 56px; }
.eyebrow {
  font-family: var(--mono); font-size: .74rem; letter-spacing: .16em; text-transform: uppercase;
  color: var(--gold); display: inline-flex; align-items: center; gap: 10px;
}
.eyebrow::before { content: ""; width: 22px; height: 1px; background: var(--gold); }
.lead { font-size: 1.12rem; max-width: 62ch; }
.up { color: var(--up); } .down { color: var(--down); } .gold { color: var(--gold); } .muted { color: var(--muted); }

:focus-visible { outline: 2px solid var(--gold); outline-offset: 3px; border-radius: 6px; }
.skip { position: absolute; left: -999px; top: 8px; background: var(--gold); color: #111; padding: 8px 14px; border-radius: 8px; z-index: 100; }
.skip:focus { left: 8px; }

/* ---------- Cabecera ---------- */
.site-header {
  position: sticky; top: 0; z-index: 50;
  background: rgba(10,12,16,.82); backdrop-filter: blur(14px); -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--line);
}
.site-header .wrap { display: flex; align-items: center; justify-content: space-between; gap: 16px; height: 68px; }
.brand { display: flex; align-items: center; gap: 12px; color: var(--text); }
.brand img { width: 40px; height: 40px; }
.brand span { font-family: var(--display); font-weight: 700; letter-spacing: .06em; text-transform: uppercase; font-size: .98rem; line-height: 1.05; }
.brand small { display: block; font-family: var(--mono); font-weight: 400; font-size: .6rem; letter-spacing: .2em; color: var(--muted); margin-top: 2px; }
.nav { display: flex; align-items: center; gap: 4px; }
.nav a { color: var(--muted); padding: 8px 14px; border-radius: 999px; font-size: .92rem; font-weight: 500; transition: color .15s, background .15s; }
.nav a:hover { color: var(--text); background: var(--surface); }
.nav a[aria-current="page"] { color: var(--gold); background: var(--gold-dim); }
.nav a.nav-cta { background: var(--gold); color: #14110a; font-weight: 600; margin-left: 6px; }
.nav a.nav-cta:hover { background: var(--gold-2); color: #14110a; }
.menu-btn { display: none; background: var(--surface); border: 1px solid var(--line); color: var(--text); width: 42px; height: 42px; border-radius: 10px; cursor: pointer; font-size: 1.2rem; }
@media (max-width: 860px) {
  .menu-btn { display: inline-flex; align-items: center; justify-content: center; }
  .nav { position: absolute; top: 68px; left: 0; right: 0; flex-direction: column; align-items: stretch; background: var(--bg-2); border-bottom: 1px solid var(--line); padding: 10px 16px 16px; display: none; }
  .nav.open { display: flex; }
  .nav a { padding: 12px 14px; border-radius: 10px; }
}

/* ---------- Selector de moneda ---------- */
.coin-switch { display: inline-flex; background: var(--surface); border: 1px solid var(--line); border-radius: 999px; padding: 4px; gap: 2px; }
.coin-switch button {
  font: 600 .88rem var(--font); color: var(--muted); background: none; border: 0; cursor: pointer;
  padding: 8px 18px; border-radius: 999px; display: inline-flex; align-items: center; gap: 8px; transition: all .15s;
}
.coin-switch button i { width: 9px; height: 9px; border-radius: 50%; background: var(--dim); display: inline-block; }
.coin-switch button[data-coin="BTC"] i { background: var(--btc); }
.coin-switch button[data-coin="ETH"] i { background: var(--eth); }
.coin-switch button[aria-pressed="true"] { color: #111; background: var(--gold); }
.coin-switch button:not([aria-pressed="true"]):hover { color: var(--text); }

/* segmentado generico */
.seg { display: inline-flex; background: var(--surface); border: 1px solid var(--line); border-radius: 10px; padding: 3px; gap: 2px; flex-wrap: wrap; }
.seg button { font: 500 .84rem var(--font); color: var(--muted); background: none; border: 0; cursor: pointer; padding: 7px 14px; border-radius: 8px; }
.seg button[aria-pressed="true"] { background: var(--surface-2); color: var(--gold); box-shadow: inset 0 0 0 1px var(--line-2); }
.seg button:not([aria-pressed="true"]):hover { color: var(--text); }

/* ---------- Tarjetas ---------- */
.card { background: linear-gradient(180deg, var(--surface), var(--bg-2)); border: 1px solid var(--line); border-radius: var(--radius); padding: 22px; }
.card h3 { margin-bottom: 6px; }
.grid { display: grid; gap: 16px; }
.g2 { grid-template-columns: repeat(2, 1fr); }
.g3 { grid-template-columns: repeat(3, 1fr); }
.g4 { grid-template-columns: repeat(4, 1fr); }
@media (max-width: 980px) { .g4 { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 900px) { .g3 { grid-template-columns: 1fr; } }
@media (max-width: 640px) { .g2, .g4 { grid-template-columns: 1fr; } .section { padding-block: 40px; } }

.stat .k { font-family: var(--mono); font-size: .7rem; letter-spacing: .12em; text-transform: uppercase; color: var(--dim); }
.stat .v { font-family: var(--display); font-size: clamp(1.5rem, 3vw, 2rem); font-weight: 700; margin-top: 6px; font-variant-numeric: tabular-nums; }
.stat .s { font-size: .82rem; color: var(--muted); margin-top: 4px; }

/* ---------- Botones ---------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px; cursor: pointer;
  font: 600 .95rem var(--font); padding: 12px 22px; border-radius: 12px; border: 1px solid transparent; transition: all .15s;
}
.btn-gold { background: var(--gold); color: #12100a; }
.btn-gold:hover { background: var(--gold-2); color: #12100a; transform: translateY(-1px); }
.btn-ghost { background: transparent; color: var(--text); border-color: var(--line-2); }
.btn-ghost:hover { border-color: var(--gold); color: var(--gold); }
.btn-sm { padding: 8px 14px; font-size: .84rem; border-radius: 9px; }
.btn-danger { color: var(--down); border-color: rgba(239,91,91,.35); background: transparent; }
.btn-danger:hover { background: rgba(239,91,91,.1); color: var(--down); border-color: var(--down); }

/* ---------- Hero ---------- */
.hero { padding: 72px 0 40px; }
.hero h1 { max-width: 16ch; margin: 18px 0 20px; }
.hero h1 em { font-style: normal; color: var(--gold); }
.hero .actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 30px; }
.hero-grid { display: grid; grid-template-columns: 1.2fr .8fr; gap: 40px; align-items: center; }
@media (max-width: 900px) { .hero-grid { grid-template-columns: 1fr; } .hero { padding-top: 48px; } }

.ticker { display: grid; gap: 12px; }
.tick { display: flex; align-items: center; justify-content: space-between; gap: 14px; padding: 18px 20px; background: linear-gradient(180deg, var(--surface), var(--bg-2)); border: 1px solid var(--line); border-radius: var(--radius); }
.tick .name { display: flex; align-items: center; gap: 12px; font-weight: 600; }
.tick .name i { width: 34px; height: 34px; border-radius: 50%; display: grid; place-items: center; font: 700 .8rem var(--mono); font-style: normal; color: #111; }
.tick[data-coin="BTC"] .name i { background: var(--btc); }
.tick[data-coin="ETH"] .name i { background: var(--eth); }
.tick .name small { display: block; font-weight: 400; color: var(--muted); font-size: .76rem; }
.tick .px { font-family: var(--mono); font-size: 1.35rem; font-weight: 500; text-align: right; }
.tick .px small { display: block; font-size: .7rem; color: var(--dim); letter-spacing: .08em; }
.live-dot { display: inline-block; width: 7px; height: 7px; border-radius: 50%; background: var(--up); margin-right: 6px; box-shadow: 0 0 0 0 rgba(62,207,142,.6); animation: pulse 2s infinite; }
.live-dot.off { background: var(--dim); animation: none; }
@keyframes pulse { 70% { box-shadow: 0 0 0 8px rgba(62,207,142,0); } 100% { box-shadow: 0 0 0 0 rgba(62,207,142,0); } }
@media (prefers-reduced-motion: reduce) { .live-dot { animation: none; } html { scroll-behavior: auto; } * { transition: none !important; } }

/* ---------- Aviso de riesgo ---------- */
.risk {
  border: 1px solid rgba(232,162,58,.35); background: linear-gradient(180deg, rgba(232,162,58,.08), rgba(232,162,58,.02));
  border-radius: var(--radius); padding: 20px 22px; display: grid; grid-template-columns: auto 1fr; gap: 16px;
}
.risk .ico { width: 34px; height: 34px; border-radius: 10px; background: rgba(232,162,58,.16); color: var(--warn); display: grid; place-items: center; font-weight: 800; }
.risk h3 { color: var(--warn); font-size: 1rem; margin-bottom: 4px; }
.risk p { color: #c5b391; font-size: .92rem; }
.risk ul { margin: 8px 0 0 18px; color: #c5b391; font-size: .92rem; }
.sim-tag { display: inline-flex; align-items: center; gap: 8px; font: 500 .72rem var(--mono); letter-spacing: .08em; text-transform: uppercase; color: var(--warn); border: 1px solid rgba(232,162,58,.4); background: rgba(232,162,58,.08); padding: 4px 10px; border-radius: 999px; }

/* ---------- Pasos ---------- */
.steps { counter-reset: s; }
.steps .card { position: relative; padding-top: 52px; }
.steps .card::before {
  counter-increment: s; content: "0" counter(s); position: absolute; top: 18px; left: 22px;
  font: 500 .8rem var(--mono); color: var(--gold); letter-spacing: .1em;
}

/* ---------- Tablas ---------- */
.table-wrap { overflow-x: auto; border: 1px solid var(--line); border-radius: var(--radius); background: var(--surface); }
table { width: 100%; border-collapse: collapse; font-size: .9rem; }
th, td { padding: 12px 16px; text-align: right; border-bottom: 1px solid var(--line); white-space: nowrap; }
th:first-child, td:first-child { text-align: left; }
th { font: 500 .7rem var(--mono); letter-spacing: .1em; text-transform: uppercase; color: var(--dim); background: var(--bg-2); }
td { font-family: var(--mono); font-variant-numeric: tabular-nums; }
tbody tr:last-child td { border-bottom: 0; }
tbody tr:hover { background: rgba(255,255,255,.02); }
tr.done td { color: var(--muted); }
tr.next td { background: var(--gold-dim); }
.pill { display: inline-block; font: 500 .7rem var(--mono); letter-spacing: .06em; padding: 3px 9px; border-radius: 999px; border: 1px solid var(--line-2); color: var(--muted); }
.pill.ok { color: var(--up); border-color: rgba(62,207,142,.4); background: rgba(62,207,142,.08); }
.pill.next { color: var(--gold); border-color: rgba(212,176,104,.5); background: var(--gold-dim); }

/* ---------- Formularios ---------- */
label { display: block; font: 500 .72rem var(--mono); letter-spacing: .1em; text-transform: uppercase; color: var(--dim); margin-bottom: 6px; }
input, select {
  width: 100%; font: 500 .95rem var(--mono); color: var(--text); background: var(--bg-2); border: 1px solid var(--line-2);
  border-radius: 10px; padding: 11px 13px; min-height: 44px; transition: border-color .15s;
}
input:focus, select:focus { outline: none; border-color: var(--gold); box-shadow: 0 0 0 3px var(--gold-dim); }
input::placeholder { color: var(--dim); }
select { appearance: none; background-image: linear-gradient(45deg, transparent 50%, var(--muted) 50%), linear-gradient(135deg, var(--muted) 50%, transparent 50%); background-position: calc(100% - 18px) 50%, calc(100% - 13px) 50%; background-size: 5px 5px; background-repeat: no-repeat; padding-right: 34px; }
.form-row { display: grid; gap: 14px; grid-template-columns: repeat(4, 1fr) auto; align-items: end; }
@media (max-width: 900px) { .form-row { grid-template-columns: 1fr 1fr; } .form-row .btn { grid-column: 1 / -1; } }
.btn:disabled { opacity: .45; cursor: not-allowed; }
.hint { font-size: .8rem; color: var(--dim); margin-top: 6px; }
.err { color: var(--down); font-size: .85rem; margin-top: 8px; min-height: 1.2em; }

/* ---------- Graficos ---------- */
.chart-card { padding: 18px 18px 12px; }
.chart-head { display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 12px; margin-bottom: 12px; }
.chart-head h3 { font-size: 1.02rem; }
.chart { width: 100%; height: 420px; position: relative; }
.chart.sm { height: 300px; }
@media (max-width: 640px) { .chart { height: 320px; } .chart.sm { height: 260px; } }
.legend { display: flex; flex-wrap: wrap; gap: 16px; font-size: .82rem; color: var(--muted); }
.legend i { display: inline-block; width: 12px; height: 3px; border-radius: 2px; margin-right: 7px; vertical-align: middle; }

/* mapa de calor mensual */
.heat { display: grid; grid-template-columns: 56px repeat(12, minmax(46px, 1fr)) minmax(64px, 1fr); gap: 3px; min-width: 760px; font: 500 .74rem var(--mono); }
.heat > div { padding: 9px 4px; text-align: center; border-radius: 6px; background: var(--surface); color: var(--muted); }
.heat .h { background: none; color: var(--dim); letter-spacing: .08em; text-transform: uppercase; font-size: .66rem; }
.heat .y { background: none; text-align: left; color: var(--text); font-weight: 600; }
.heat .tot { font-weight: 700; }
.heat .empty { background: transparent; }

/* ---------- Otros ---------- */
.two { display: grid; grid-template-columns: 1fr 1fr; gap: 28px; align-items: start; }
@media (max-width: 860px) { .two { grid-template-columns: 1fr; } }
.page-head { padding: 44px 0 20px; }
.page-head h1 { font-size: clamp(1.8rem, 4vw, 2.7rem); margin: 12px 0 10px; }
.toolbar { display: flex; flex-wrap: wrap; gap: 12px; align-items: center; justify-content: space-between; margin: 18px 0 22px; }
.note { font-size: .82rem; color: var(--dim); }
.legal h2 { margin: 34px 0 10px; font-size: 1.35rem; }
.legal p, .legal li { color: var(--muted); margin-bottom: 10px; }
.legal ul { margin-left: 20px; }
.empty-state { text-align: center; padding: 34px 20px; color: var(--muted); border: 1px dashed var(--line-2); border-radius: var(--radius); }
.spacer-sm { height: 16px; } .spacer { height: 28px; }
.kv { display: grid; grid-template-columns: 1fr auto; gap: 8px 16px; font-size: .92rem; }
.kv dt { color: var(--muted); } .kv dd { font-family: var(--mono); text-align: right; }

/* ---------- Pie ---------- */
.site-footer { border-top: 1px solid var(--line); background: var(--bg-2); margin-top: 40px; padding: 36px 0 28px; }
.foot-grid { display: grid; grid-template-columns: 1.4fr 1fr 1fr; gap: 30px; }
@media (max-width: 760px) { .foot-grid { grid-template-columns: 1fr; } }
.site-footer h4 { font: 500 .72rem var(--mono); letter-spacing: .14em; text-transform: uppercase; color: var(--dim); margin-bottom: 10px; }
.site-footer li { list-style: none; margin-bottom: 6px; }
.site-footer a { color: var(--muted); font-size: .9rem; } .site-footer a:hover { color: var(--gold); }
.foot-legal { border-top: 1px solid var(--line); margin-top: 26px; padding-top: 18px; font-size: .78rem; color: var(--dim); line-height: 1.6; }
.foot-legal p { color: var(--dim); }

/* ---------- Toast ---------- */
.toast { position: fixed; bottom: 22px; left: 50%; transform: translateX(-50%) translateY(20px); background: var(--surface-2); border: 1px solid var(--gold); color: var(--text); padding: 12px 20px; border-radius: 12px; font-size: .9rem; opacity: 0; pointer-events: none; transition: all .25s; z-index: 200; }
.toast.show { opacity: 1; transform: translateX(-50%) translateY(0); }

/* barras de desplazamiento acordes al tema */
.table-wrap, .heat-wrap { scrollbar-width: thin; scrollbar-color: var(--line-2) transparent; }
.table-wrap::-webkit-scrollbar, .heat-wrap::-webkit-scrollbar { height: 8px; }
.table-wrap::-webkit-scrollbar-thumb, .heat-wrap::-webkit-scrollbar-thumb { background: var(--line-2); border-radius: 8px; }
.table-wrap::-webkit-scrollbar-track, .heat-wrap::-webkit-scrollbar-track { background: transparent; }

/* marcadores pendientes de completar por el titular */
.todo { background: rgba(232,162,58,.16); color: var(--warn); border: 1px dashed rgba(232,162,58,.5); border-radius: 6px; padding: 0 6px; font-family: var(--mono); font-size: .88em; }

/* desplegable explicativo */
.explain { border: 1px solid var(--line); border-radius: var(--radius); background: linear-gradient(180deg, var(--surface), var(--bg-2)); margin-bottom: 16px; scroll-margin-top: 90px; }
.explain summary { list-style: none; cursor: pointer; padding: 16px 22px; font: 600 1rem var(--display); display: flex; align-items: center; justify-content: space-between; gap: 12px; color: var(--gold); }
.explain summary::-webkit-details-marker { display: none; }
.explain summary::after { content: "+"; font: 400 1.4rem var(--mono); color: var(--gold); }
.explain[open] summary::after { content: "–"; }
.explain[open] summary { border-bottom: 1px solid var(--line); }
.explain-body { padding: 18px 22px 22px; display: grid; gap: 16px; }
.explain-body p, .explain-body li { font-size: .95rem; }
.explain-body ul { margin-left: 20px; color: var(--muted); display: grid; gap: 6px; }
.callout { border: 1px solid var(--gold-dim); border-left: 3px solid var(--gold); background: var(--gold-dim); border-radius: 10px; padding: 14px 18px; font-size: .92rem; color: var(--text); line-height: 1.55; }
.callout strong { color: var(--gold-2); }
.formula { font: 500 .95rem var(--mono); background: var(--bg-2); border: 1px solid var(--line-2); border-radius: 10px; padding: 12px 16px; color: var(--text); overflow-x: auto; }
.stat .s a { white-space: nowrap; }

/* Mi posicion: barra de operaciones, opciones de entrada */
.ops-head { display: flex; flex-wrap: wrap; gap: 12px; align-items: center; justify-content: space-between; margin: 0 0 16px; }
.two.single { grid-template-columns: 1fr; }
label.opt { display: flex; gap: 10px; align-items: flex-start; margin: 0; padding: 12px 14px; border: 1px solid var(--line-2); border-radius: 10px; cursor: pointer;
  font: 400 .9rem var(--font); letter-spacing: 0; text-transform: none; color: var(--muted); line-height: 1.5; }
label.opt strong { color: var(--text); }
label.opt input { width: auto; min-height: 0; margin-top: 4px; accent-color: var(--gold); }
label.opt:has(input:checked) { border-color: var(--gold); background: var(--gold-dim); }
label.opt:has(input:disabled) { opacity: .5; cursor: not-allowed; }

/* selector de nivel: el que toca va resaltado, los comprados atenuados */
.lvl-pick { display: grid; grid-template-columns: repeat(5, minmax(0, 1fr)); gap: 8px; }
.lvl-pick button { font: 500 .82rem var(--mono); color: var(--muted); background: var(--bg-2); border: 1px solid var(--line-2); border-radius: 10px;
  padding: 10px 4px; cursor: pointer; line-height: 1.35; text-align: center; transition: border-color .15s, background .15s; }
.lvl-pick button small { display: block; font-size: .68rem; color: var(--dim); margin-top: 2px; }
.lvl-pick button:hover { border-color: var(--gold); }
.lvl-pick button.next { border-color: var(--gold); color: var(--gold); box-shadow: 0 0 0 3px var(--gold-dim); }
.lvl-pick button.next small { color: var(--gold); opacity: .8; }
.lvl-pick button.done { opacity: .5; }
.lvl-pick button[aria-pressed="true"] { background: var(--gold); border-color: var(--gold); color: #12100a; box-shadow: none; opacity: 1; }
.lvl-pick button[aria-pressed="true"] small { color: #3a3320; opacity: 1; }
@media (max-width: 420px) { .lvl-pick button { font-size: .74rem; padding: 9px 2px; } .lvl-pick button small { font-size: .62rem; } }

.lvl-pick button b { display: block; font-weight: 600; font-size: .95rem; white-space: nowrap; }
#b-why { display: flex; width: 100%; }
#b-why button { flex: 1 1 0; white-space: normal; line-height: 1.25; padding: 9px 10px; text-align: center; }

/* logo horizontal (cabecera y pie) */
.brand img.logo-full { width: auto; height: 44px; max-width: 100%; display: block; }
.brand img.logo-foot { height: 38px; }
@media (max-width: 420px) { .brand img.logo-full { height: 44px; } .brand img.logo-foot { height: 40px; } }

/* marca: icono + nombre + lema en texto */
.brand { gap: 10px; }
.brand img.brand-icon { width: 46px; height: 46px; flex: none; }
.brand-text { display: flex; flex-direction: column; gap: 4px; line-height: 1; }
.brand img.brand-word { display: block; width: auto; height: 38px; max-width: none; }
.brand-text small { display: flex; justify-content: space-between; gap: 4px; font: 600 9.5px var(--font); letter-spacing: .1em; color: #e9ecf1; opacity: .92; }
.brand-text small .dot { color: var(--gold); }
.brand-foot img.brand-icon { width: 40px; height: 40px; }
.brand-foot img.brand-word { height: 32px; }
.brand-foot .brand-text small { font-size: 8.5px; }
@media (max-width: 420px) { .brand img.brand-icon { width: 42px; height: 42px; } .brand img.brand-word { height: 32px; } .brand-text small { font-size: 8.4px; letter-spacing: .06em; } }
.brand span.brand-text, .brand .brand-text small span { font: inherit; letter-spacing: inherit; text-transform: none; }
.brand .brand-text small { margin: 0; }