:root{
  --sea-deep:#1B5C7C; --sea-mid:#2E7EA6; --sea-shelf:#529CBE; --sea-shallow:#93C7D9;
  --grass:#82A855; --forest:#4C7A2F; --highland:#AAC471; --sand:#E7D4A4;
  --rock:#96876D; --rock-top:#D9CCB1; --river:#4FA6C4;
  --line:rgba(244,232,203,.5); --tick:rgba(244,232,203,.8);
  --parchment:#F4E8CB; --flag:#16261E; --mast:#6B4A2B;
  --bg:#F6F1E6; --panel:#FFFFFF; --text:#1B2A30; --muted:#5A6A71;
  --border:#E2D9C6; --accent:#1F6C8C; --radius:12px;
  --shadow:0 1px 2px rgba(20,40,50,.06),0 8px 24px rgba(20,40,50,.08);
}
:root.night{
  --sea-deep:#08202B; --sea-mid:#11303E; --sea-shelf:#1C4A5E; --sea-shallow:#2F6379;
  --grass:#5C7F3D; --forest:#37611F; --highland:#7C9A54; --sand:#B9A579;
  --rock:#6E6553; --rock-top:#9A8F76; --river:#3C7E97;
  --line:rgba(214,228,224,.26); --tick:rgba(214,228,224,.5); --mast:#9A7B55;
  --bg:#0C1A20; --panel:#10242C; --text:#E8EEE9; --muted:#9BB0B6;
  --border:#1D3640; --accent:#5FB6D6; --shadow:0 1px 2px rgba(0,0,0,.3),0 10px 30px rgba(0,0,0,.35);
}
*{box-sizing:border-box}
html,body{margin:0}
body{font-family:"Inter",system-ui,sans-serif;color:var(--text);
  background:radial-gradient(1200px 600px at 70% -10%, color-mix(in srgb,var(--accent) 8%,transparent), transparent 60%),var(--bg);
  min-height:100vh;padding:28px 20px 40px;line-height:1.6;}
.wrap{max-width:1120px;margin:0 auto}
.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);border:0}
.topbar{display:flex;align-items:flex-start;justify-content:space-between;gap:16px;margin-bottom:16px;flex-wrap:wrap}
.brand{display:flex;align-items:center;gap:8px}
.ensign{flex:none}
.ensign .cloth{transform-box:fill-box;transform-origin:left center;animation:wave 2.8s ease-in-out infinite}
@keyframes wave{
  0%,100%{transform:perspective(240px) rotateY(0deg) skewY(0deg)}
  25%{transform:perspective(240px) rotateY(-10deg) skewY(1.6deg)}
  50%{transform:perspective(240px) rotateY(0deg) skewY(0deg)}
  75%{transform:perspective(240px) rotateY(10deg) skewY(-1.6deg)}
}
.brand h1{font-family:"Fraunces",serif;font-optical-sizing:auto;font-weight:600;font-size:34px;line-height:1;margin:0;letter-spacing:.2px}
.brand .tag{margin:4px 0 0;color:var(--muted);font-size:13.5px}
.controls{display:flex;align-items:center;gap:10px}
.toggle{font:500 13px "Inter",sans-serif;color:var(--text);background:var(--panel);border:1px solid var(--border);border-radius:999px;padding:8px 14px;cursor:pointer;display:inline-flex;align-items:center;gap:8px;box-shadow:var(--shadow)}
.toggle:hover{border-color:var(--accent)}
.toggle .dot{width:9px;height:9px;border-radius:50%;background:var(--accent)}
.stage{display:grid;grid-template-columns:1fr 300px;gap:18px;align-items:start}
.chartcard{position:relative;border-radius:16px;overflow:hidden;border:1px solid var(--border);box-shadow:var(--shadow);background:var(--sea-deep)}
.chartcard svg{display:block;width:100%;height:auto}
.zone{cursor:pointer}
.zone .pin{fill:var(--parchment);stroke:var(--ink,#123846);stroke-width:1.4;transition:r .15s ease}
.zone .pin-core{fill:#123846;transition:r .15s ease}
.zone .halo{fill:var(--parchment);opacity:0;transition:opacity .18s ease}
.zone .plate{fill:var(--parchment);stroke:rgba(18,56,70,.25);stroke-width:1}
.zone .plabel{font:500 13px "Inter",sans-serif;fill:#123846}
.zone:hover .halo,.zone.is-active .halo{opacity:.22}
.zone:hover .pin,.zone.is-active .pin{r:8.5}
.zone:hover .pin-core,.zone.is-active .pin-core{r:3.2}
.zone:focus-visible{outline:none}
.zone:focus-visible .pin{stroke:var(--accent);stroke-width:2.6}
.zone.locked .plate{fill:#E9DEC6}
.lockglyph{fill:none;stroke:#123846;stroke-width:1.4}
.naut{fill:none;stroke:var(--line)}
.tick{stroke:var(--tick);stroke-width:1}
.coord{font:400 10px "IBM Plex Mono",monospace;fill:var(--tick)}
.sounding{font:400 10px "IBM Plex Mono",monospace;fill:rgba(244,232,203,.5)}
.scalebar text{font:500 11px "IBM Plex Mono",monospace;fill:var(--parchment)}
.compass text{font:600 12px "IBM Plex Mono",monospace;fill:var(--parchment)}
.panel{background:var(--panel);border:1px solid var(--border);border-radius:var(--radius);padding:18px 18px 20px;box-shadow:var(--shadow);position:sticky;top:20px}
.panel .eyebrow{font:500 11px "IBM Plex Mono",monospace;letter-spacing:1.5px;text-transform:uppercase;color:var(--accent);margin:0 0 6px}
.panel h2{font-family:"Fraunces",serif;font-weight:600;font-size:22px;margin:0 0 8px;line-height:1.15}
.panel p{margin:0 0 14px;color:var(--muted);font-size:14.5px}
.panel .enter{display:inline-flex;align-items:center;gap:8px;font:500 14px "Inter",sans-serif;color:#fff;background:var(--accent);border:none;border-radius:10px;padding:9px 16px;cursor:pointer;text-decoration:none}
.panel .enter[hidden]{display:none}
.panel .badge{display:inline-block;font:500 11px "IBM Plex Mono",monospace;color:var(--muted);border:1px solid var(--border);border-radius:999px;padding:3px 10px;margin-top:2px}
.legend{margin-top:22px}
.legend h3{font:500 12px "IBM Plex Mono",monospace;letter-spacing:1.2px;text-transform:uppercase;color:var(--muted);margin:0 0 12px}
.legend ul{list-style:none;margin:0;padding:0;display:grid;grid-template-columns:repeat(auto-fill,minmax(180px,1fr));gap:10px}
.legend a{display:flex;align-items:center;gap:10px;text-decoration:none;color:var(--text);background:var(--panel);border:1px solid var(--border);border-radius:10px;padding:10px 12px;transition:border-color .15s}
.legend a:hover{border-color:var(--accent)}
.legend a:focus-visible{outline:2px solid var(--accent);outline-offset:2px}
.legend .k{width:8px;height:8px;border-radius:50%;background:var(--accent);flex:none}
.legend small{color:var(--muted);display:block;font-size:12px}
.foot{margin-top:26px;color:var(--muted);font-size:12.5px;border-top:1px solid var(--border);padding-top:14px}
@media (max-width:840px){.stage{grid-template-columns:1fr}.panel{position:static}}
@media (prefers-reduced-motion:reduce){*{animation:none!important;transition:none!important}}

.page{max-width:720px;margin:20px auto 0}
.eyebrow2{font:500 11px "IBM Plex Mono",monospace;letter-spacing:1.5px;text-transform:uppercase;color:var(--accent);margin:0 0 6px}
.pagetitle{font-family:"Fraunces",serif;font-weight:600;font-size:30px;margin:0 0 12px}
.lead{font-size:16px;color:var(--text)}
.back{display:inline-block;margin-top:18px;color:var(--accent);text-decoration:none;font-weight:500}
.back:hover{text-decoration:underline}

/* ---------- Biblioteca ---------- */
.bib-wrap{max-width:1000px;margin:16px auto 0}
.muted{color:var(--muted)}
.bib-form{display:grid;grid-template-columns:1fr 1fr;gap:14px;background:var(--panel);border:1px solid var(--border);border-radius:var(--radius);padding:16px 18px;box-shadow:var(--shadow)}
.bib-field{display:flex;flex-direction:column;gap:5px}
.bib-field label{font:500 11px "IBM Plex Mono",monospace;letter-spacing:.6px;text-transform:uppercase;color:var(--muted)}
.bib-field input,.bib-field select{font:400 14px "Inter",sans-serif;padding:8px 10px;border:1px solid var(--border);border-radius:8px;background:var(--bg);color:var(--text)}
.bib-field input:focus,.bib-field select:focus{outline:2px solid var(--accent);outline-offset:1px;border-color:var(--accent)}
.bib-actions{grid-column:1/-1;display:flex;flex-wrap:wrap;gap:8px;align-items:center;border-top:1px solid var(--border);padding-top:12px}
.bib-actions .sep{flex:1}
.btn{font:500 13px "Inter",sans-serif;padding:8px 14px;border-radius:8px;border:1px solid var(--border);background:var(--panel);color:var(--text);cursor:pointer}
.btn:hover{border-color:var(--accent)}
.bib-status{margin:18px 2px 10px;color:var(--muted);font-size:14px}
.bib-table{width:100%;border-collapse:collapse;font-size:14px}
.bib-table thead th{font:500 11px "IBM Plex Mono",monospace;letter-spacing:.5px;text-transform:uppercase;color:var(--muted);text-align:left;padding:8px 10px;border-bottom:2px solid var(--border)}
.bib-table td{padding:9px 10px;border-bottom:1px solid var(--border);vertical-align:top}
.bib-table .num{color:var(--muted);width:42px;text-align:right}
.bib-table .cal{white-space:nowrap;width:110px}
.bib-title-btn{font:600 14px "Inter",sans-serif;color:var(--accent);background:none;border:none;padding:0;cursor:pointer;text-align:left}
.bib-title-btn:hover{text-decoration:underline}
.bib-detail{background:color-mix(in srgb,var(--accent) 7%, var(--panel));border:1px solid var(--border);border-radius:8px;padding:12px 14px;margin:8px 0 4px}
.bib-detail dl{display:grid;grid-template-columns:auto 1fr;gap:5px 14px;margin:0}
.bib-detail dt{color:var(--muted);font-size:12.5px;white-space:nowrap;font-family:"IBM Plex Mono",monospace}
.bib-detail dd{margin:0;font-size:14px}
.bib-detail a{color:var(--accent);text-decoration:none}
.bib-detail a:hover{text-decoration:underline}
.star{color:#C98A1B}
@media (max-width:720px){ .bib-form{grid-template-columns:1fr} .bib-table .num{display:none} }