:root {
  --bg: #FBF6EE;
  --bg-2: #F4ECDF;
  --card: #FFFFFF;
  --ink: #2B2F2E;
  --muted: #6A716E;
  --line: #E8E0D3;
  --accent: #E07A5F;
  --accent-ink: #FFFFFF;
  --green: #2F8F6B;
  --board: #BFE3D0;
  --board-edge: #6E9C88;
  --part: #E6F2EC;
  --part-edge: #7FA593;
  --slot: #5D6D67;
  --metal: #C9D3CF;
  --pin-bg: #3D4A45;
  --pin: #E3C46B;
  --focus: #E07A5F;
  --c-power: #F4B183;
  --c-cool: #8FD3C1;
  --c-front: #F2A7A0;
  --c-core: #9CC9E6;
  --c-conf: #C6B3E6;
  --radius: 20px;
  --shadow: 0 10px 30px -18px rgba(60, 45, 20, .35);
}
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --bg: #151918; --bg-2: #1A201E; --card: #1F2523; --ink: #ECEFEE; --muted: #A3ACA8; --line: #2E3633;
    --board: #2F5C4C; --board-edge: #5E9A83; --part: #3A6B5A; --part-edge: #7FB8A2;
    --slot: #20282A; --metal: #6F7E79; --green: #6CC9A1; --shadow: 0 10px 30px -18px rgba(0,0,0,.6);
  }
}
:root[data-theme="dark"] {
  --bg: #151918; --bg-2: #1A201E; --card: #1F2523; --ink: #ECEFEE; --muted: #A3ACA8; --line: #2E3633;
  --board: #2F5C4C; --board-edge: #5E9A83; --part: #3A6B5A; --part-edge: #7FB8A2;
  --slot: #20282A; --metal: #6F7E79; --green: #6CC9A1; --shadow: 0 10px 30px -18px rgba(0,0,0,.6);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 80px; }
body {
  margin: 0; background: var(--bg); color: var(--ink);
  font-family: "Nunito", system-ui, sans-serif; line-height: 1.55; overflow-x: hidden;
}
img { max-width: 100%; display: block; }
a { color: inherit; }
.wrap { max-width: 1120px; margin: 0 auto; padding: 0 16px; }

/* ---------- barra superior ---------- */
.topbar {
  position: sticky; top: 0; z-index: 20;
  background: color-mix(in srgb, var(--bg) 85%, transparent);
  backdrop-filter: blur(10px); -webkit-backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--line);
}
.topbar .wrap { display: flex; align-items: center; gap: 16px; height: 64px; }
.logo { font-weight: 900; text-decoration: none; display: flex; align-items: center; gap: 10px; font-size: 1.05rem; white-space: nowrap; }
.logo-mark {
  width: 32px; height: 32px; border-radius: 9px; background: var(--board);
  border: 2px solid var(--board-edge); display: grid; place-items: center;
}
.logo-mark i { width: 12px; height: 12px; background: var(--slot); border-radius: 2px; box-shadow: 0 0 0 3px var(--metal); }
.topnav { display: flex; gap: 4px; margin-left: auto; }
.topnav a { text-decoration: none; font-weight: 700; color: var(--muted); padding: 8px 12px; border-radius: 10px; transition: color .2s, background .2s; }
.topnav a:hover { color: var(--ink); background: var(--bg-2); }
@media (max-width: 860px) { .topnav { display: none; } .topbar .btn { margin-left: auto; } }

/* ---------- botones ---------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  font: inherit; font-weight: 800; text-decoration: none; cursor: pointer;
  border-radius: 14px; padding: 12px 20px; border: 1px solid transparent;
  transition: transform .2s ease, box-shadow .2s ease, background .2s ease;
}
.btn:hover { transform: translateY(-2px); box-shadow: var(--shadow); }
.btn-primary { background: var(--accent); color: var(--accent-ink); }
.btn-ghost { background: var(--card); border-color: var(--line); color: var(--ink); }
.btn-wa { background: #25D366; color: #0B3B1E; }
.btn-sm { padding: 8px 14px; border-radius: 12px; font-size: .92rem; }

/* ---------- secciones ---------- */
section { padding: 72px 0; }
.eyebrow { font-size: .8rem; font-weight: 800; letter-spacing: .08em; text-transform: uppercase; color: var(--accent); margin: 0 0 6px; }
h1, h2, h3 { line-height: 1.15; letter-spacing: -.01em; }
.sec-title { font-size: clamp(1.7rem, 4vw, 2.4rem); font-weight: 900; margin: 0 0 8px; }
.sec-lead { color: var(--muted); font-size: 1.08rem; margin: 0 0 32px; max-width: 640px; }
.alt { background: var(--bg-2); }

.card {
  background: var(--card); border: 1px solid var(--line); border-radius: var(--radius);
  padding: 22px; transition: transform .25s ease, box-shadow .25s ease, border-color .25s ease;
}
a.card { text-decoration: none; display: block; }
.card.lift:hover { transform: translateY(-4px); box-shadow: var(--shadow); }
.grid { display: grid; gap: 16px; }
.g2 { grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); }
.g3 { grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); }
.g4 { grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); }
.card h3 { margin: 0 0 6px; font-size: 1.15rem; font-weight: 900; }
.card p { margin: 0; color: var(--muted); }
.pill {
  display: inline-block; font-size: .78rem; font-weight: 800; border-radius: 99px;
  padding: 3px 10px; background: var(--bg-2); border: 1px solid var(--line); color: var(--muted);
}
.todo { outline: 2px dashed var(--accent); outline-offset: 2px; border-radius: 6px; }

/* ---------- animación al aparecer ---------- */
.js .reveal { opacity: 0; transform: translateY(18px); transition: opacity .7s ease, transform .7s cubic-bezier(.2,.7,.2,1); }
.js .reveal.in { opacity: 1; transform: none; }
.js .reveal.d1 { transition-delay: .08s; } .js .reveal.d2 { transition-delay: .16s; } .js .reveal.d3 { transition-delay: .24s; }
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .js .reveal { opacity: 1; transform: none; transition: none; }
  .btn:hover, .card.lift:hover { transform: none; }
  * { animation: none !important; }
}

/* ---------- tablas ---------- */
.table-wrap { overflow-x: auto; border: 1px solid var(--line); border-radius: 16px; background: var(--card); }
table { width: 100%; border-collapse: collapse; font-size: .95rem; min-width: 520px; }
th, td { text-align: left; padding: 11px 14px; border-bottom: 1px solid var(--line); vertical-align: top; }
th { font-size: .78rem; text-transform: uppercase; letter-spacing: .05em; color: var(--muted); background: var(--bg-2); }
tr:last-child td { border-bottom: 0; }
td b { font-weight: 800; }

.note { border-radius: 14px; padding: 12px 14px; margin-top: 16px; font-size: .97rem; }
.note b { display: block; font-size: .78rem; text-transform: uppercase; letter-spacing: .05em; margin-bottom: 2px; }
.note.tip { background: color-mix(in srgb, var(--c-cool) 24%, transparent); }
.note.warn { background: color-mix(in srgb, var(--c-front) 26%, transparent); }

footer.site { border-top: 1px solid var(--line); padding: 28px 0 40px; color: var(--muted); font-size: .9rem; }
footer.site .wrap { display: flex; flex-wrap: wrap; gap: 12px; justify-content: space-between; }

/* ---------- placa interactiva ---------- */
.legend { display: flex; flex-wrap: wrap; gap: 8px; margin: 0 0 20px; }
.legend span {
  display: inline-flex; align-items: center; gap: 6px; font-size: .85rem; font-weight: 700;
  background: var(--card); border: 1px solid var(--line); border-radius: 99px; padding: 4px 10px;
}
.legend i { width: 10px; height: 10px; border-radius: 50%; display: inline-block; }
.layout { display: grid; grid-template-columns: minmax(0, 1.15fr) minmax(0, 1fr); gap: 24px; align-items: start; }
@media (max-width: 860px) { .layout { grid-template-columns: 1fr; } }
.board-card { background: var(--card); border: 1px solid var(--line); border-radius: var(--radius); padding: 12px; }
svg.board { width: 100%; height: auto; display: block; }
.part { cursor: pointer; transition: opacity .3s; }
.part .hl { fill: none; stroke: transparent; stroke-width: 3; rx: 5; }
svg.has-active .part:not(.active), svg.has-active .deco { opacity: .35; }
.part.active .hl { stroke: var(--focus); animation: pulse 1.4s ease-in-out infinite; }
@keyframes pulse { 50% { stroke-opacity: .35; } }
.badge { cursor: pointer; transition: opacity .3s; }
.badge circle { stroke: #fff; stroke-width: 2.5; transition: stroke .2s; }
.badge text { font-weight: 900; font-size: 14px; fill: #2B2F2E; text-anchor: middle; dominant-baseline: central; pointer-events: none; }
.badge:hover circle, .badge:focus-visible circle { stroke: var(--focus); }
.badge:focus { outline: none; }
svg.has-active .badge:not(.active) { opacity: .55; }
.badge.active circle { stroke: var(--focus); stroke-width: 3; }
.panel { background: var(--card); border: 1px solid var(--line); border-radius: var(--radius); padding: 22px; position: sticky; top: 84px; }
.panel > * { animation: fadeIn .35s ease; }
@keyframes fadeIn { from { opacity: 0; transform: translateY(6px); } }
@media (max-width: 860px) { .panel { position: static; } }
.panel .tag { display: inline-flex; align-items: center; gap: 8px; font-size: .8rem; font-weight: 800; color: var(--muted); text-transform: uppercase; letter-spacing: .05em; }
.panel .num { display: inline-grid; place-items: center; width: 34px; height: 34px; border-radius: 50%; font-weight: 900; color: #2B2F2E; font-size: 1rem; flex: none; }
.panel h2 { margin: 10px 0 2px; font-size: 1.5rem; font-weight: 900; }
.panel .silk { margin: 0 0 14px; color: var(--muted); font-size: .9rem; }
.panel .silk code { background: var(--bg); border: 1px solid var(--line); border-radius: 6px; padding: 1px 6px; font-size: .85rem; }
.panel h3 { font-size: .8rem; text-transform: uppercase; letter-spacing: .06em; color: var(--muted); margin: 16px 0 4px; }
.panel p { margin: 0; }
.panel .tip, .panel .warn { border-radius: 12px; padding: 10px 12px; margin-top: 14px; font-size: .95rem; }
.panel .tip { background: color-mix(in srgb, var(--c-cool) 22%, transparent); }
.panel .warn { background: color-mix(in srgb, var(--c-front) 25%, transparent); }
.panel .tip b, .panel .warn b { display: block; font-size: .8rem; text-transform: uppercase; letter-spacing: .05em; margin-bottom: 2px; }
.panel .nav { display: flex; justify-content: space-between; gap: 8px; margin-top: 18px; }
.panel .nav button, .chips button {
  font: inherit; font-weight: 800; cursor: pointer; color: var(--ink);
  background: var(--bg); border: 1px solid var(--line); border-radius: 12px; padding: 8px 14px;
  transition: border-color .2s;
}
.panel .nav button:hover, .chips button:hover { border-color: var(--focus); }
.empty { color: var(--muted); }
.empty h2 { color: var(--ink); }
.chips { display: grid; grid-template-columns: repeat(auto-fill, minmax(200px, 1fr)); gap: 8px; margin-top: 20px; }
.chips button { display: flex; align-items: center; gap: 10px; text-align: left; font-weight: 700; font-size: .92rem; padding: 8px 10px; background: var(--card); }
.chips button[aria-pressed="true"] { border-color: var(--focus); box-shadow: 0 0 0 2px color-mix(in srgb, var(--focus) 30%, transparent); }
.chips .dot { width: 24px; height: 24px; border-radius: 50%; display: inline-grid; place-items: center; font-weight: 900; font-size: .78rem; color: #2B2F2E; flex: none; }

@media (max-width: 420px) {
  .topbar .wrap { gap: 8px; }
  .logo { font-size: .92rem; gap: 8px; }
  .logo-mark { width: 28px; height: 28px; }
  .topbar .btn-sm { padding: 7px 11px; font-size: .85rem; }
}

/* ---------- ventana de pago ---------- */
#pago {
  width: min(480px, calc(100vw - 24px)); max-height: calc(100vh - 32px); overflow-y: auto;
  border: 1px solid var(--line); border-radius: 22px; padding: 24px 20px 20px;
  background: var(--card); color: var(--ink); box-shadow: 0 30px 80px -30px rgba(0,0,0,.5);
}
#pago[open] { animation: popIn .28s cubic-bezier(.2,.7,.2,1); }
#pago::backdrop { background: rgba(20, 22, 21, .55); backdrop-filter: blur(3px); }
@keyframes popIn { from { opacity: 0; transform: translateY(12px) scale(.98); } }
#pago h2 { font-size: 1.45rem; font-weight: 900; margin: 4px 0 0; }
.pg-price { font-size: 1.6rem; font-weight: 900; color: var(--green); margin: 2px 0 16px; }
.pg-close { position: absolute; top: 12px; right: 12px; width: 36px; height: 36px; border-radius: 50%; border: 1px solid var(--line); background: var(--bg); color: var(--ink); cursor: pointer; font-size: 1rem; }
.pg-opt { border: 1px solid var(--line); border-radius: 16px; padding: 14px; margin-bottom: 12px; background: var(--bg); }
.pg-head { display: flex; gap: 12px; align-items: flex-start; margin-bottom: 12px; }
.pg-ico { font-size: 1.4rem; line-height: 1; margin-top: 2px; }
.pg-head h3 { margin: 0; font-size: 1.05rem; font-weight: 900; }
.pg-head p { margin: 2px 0 0; color: var(--muted); font-size: .9rem; }
.pg-opt > .btn { width: 100%; }
.pg-flow[aria-disabled="true"] { opacity: .6; pointer-events: none; }
.pg-datos { margin: 0 0 12px; display: grid; }
.pg-datos div { display: flex; justify-content: space-between; gap: 12px; padding: 6px 0; border-top: 1px dashed var(--line); font-size: .92rem; }
.pg-datos dt { color: var(--muted); font-weight: 700; }
.pg-datos dd { margin: 0; font-weight: 800; text-align: right; word-break: break-word; }
.pg-actions { display: grid; grid-template-columns: 1fr 1fr; gap: 8px; }
.pg-actions .btn { padding: 10px 12px; font-size: .92rem; }
@media (max-width: 380px) { .pg-actions { grid-template-columns: 1fr; } }
.pg-note { margin: 4px 0 0; font-size: .9rem; color: var(--muted); text-align: center; }