/* Papyr — BPSO Lab 2026 / Plotter Index, light-first, paper #faf9f6, teal #0d9488 */
:root{
  --bg:#faf9f6; --bg2:#f0efeb; --surface:#ffffff; --surface2:#f5f4f0;
  --border:rgba(28,25,23,.12); --text:#1c1917; --muted:#57534e; --dim:#a8a29e;
  --accent:#0d9488; --accent-2:#14b8a6; --brand:#2563eb;
  --ok:#059669; --warn:#d97706; --err:#dc2626;
  --radius:16px; --reading:1120px; --font-h:'Poppins',sans-serif; --font-b:'Inter',system-ui,sans-serif;
}
[data-theme="dark"]{
  --bg:#0f1714; --bg2:#1a2420; --surface:#162019; --surface2:#0c1210;
  --border:rgba(148,163,184,.14); --text:#f0fdf4; --muted:#94a3b8; --dim:#64748b;
  --accent:#14b8a6; --accent-2:#2dd4bf;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0; font-family:var(--font-b); color:var(--text); line-height:1.6;
  background:var(--bg);
  background-image:radial-gradient(rgba(28,25,23,.07) 1px, transparent 1.5px);
  background-size:30px 30px; background-attachment:fixed;
  -webkit-font-smoothing:antialiased;
}
[data-theme="dark"] body{
  background-image:radial-gradient(rgba(148,163,184,.08) 1px, transparent 1.5px);
}
.skip-link{position:absolute;left:-9999px}
.skip-link:focus{left:12px;top:12px;background:var(--accent);color:#fff;padding:8px 14px;border-radius:8px;z-index:100}

/* --- i18n --- */
.lang-block{display:none}
body.lang-pt .lang-pt, body.lang-en .lang-en, body.lang-es .lang-es{display:revert}

/* --- navbar --- */
.pa-nav{display:flex;align-items:center;justify-content:space-between;gap:1rem;
  padding:.9rem clamp(1rem,4vw,2.5rem);border-bottom:1px solid var(--border);
  background:color-mix(in srgb,var(--bg) 88%,transparent);backdrop-filter:blur(8px);position:sticky;top:0;z-index:20}
.pa-brand{display:flex;align-items:center;gap:.55rem;text-decoration:none;color:var(--text)}
.pa-brand-name{font-family:var(--font-h);font-weight:800;font-size:1.15rem;letter-spacing:-.01em}
.pa-mark{display:grid;place-items:center;width:32px;height:32px;border-radius:9px;color:#fff;font-size:1.05rem;
  background:linear-gradient(135deg,#14b8a6 0%,#0d9488 50%,#0f766e 100%);box-shadow:0 2px 10px rgba(13,148,136,.30)}
.pa-nav-actions{display:flex;align-items:center;gap:1rem}
.pa-nav-link{color:var(--muted);text-decoration:none;font-size:.9rem;font-weight:500;display:inline-flex;align-items:center;gap:.3rem;white-space:nowrap}
.pa-nav-link:hover{color:var(--text)}
.pa-nav-div{width:1px;height:20px;background:var(--border)}
.lang-switch{display:flex;gap:.15rem}
.lang-switch .lang-btn{color:var(--dim);text-decoration:none;font-size:.78rem;font-weight:600;padding:.25rem .45rem;border-radius:6px}
.lang-switch .lang-btn[aria-current="true"]{color:#fff;background:var(--accent)}
.pa-theme-btn{background:none;border:1px solid var(--border);color:var(--muted);width:36px;height:36px;border-radius:50%;cursor:pointer;display:grid;place-items:center}
/* light-first: sun hidden in light, shown in dark */
.pa-theme-btn .ri-sun-line{display:none} .pa-theme-btn .ri-moon-line{display:block}
[data-theme="dark"] .pa-theme-btn .ri-sun-line{display:block} [data-theme="dark"] .pa-theme-btn .ri-moon-line{display:none}

/* --- main layout --- */
.papyr-main{max-width:var(--reading);margin:0 auto;padding:clamp(1.4rem,4vw,3rem) clamp(1rem,4vw,2.5rem) 4rem}

/* --- hero --- */
.pa-hero{text-align:center;margin-bottom:2.5rem}
.pa-eyebrow{font-size:.75rem;font-weight:600;letter-spacing:.16em;color:var(--accent);margin:0 0 .6rem}
.pa-hero h1{font-family:var(--font-h);font-weight:800;font-size:clamp(1.7rem,4vw,2.6rem);line-height:1.1;letter-spacing:-.02em;margin:0 0 .7rem}
.pa-sub{color:var(--muted);max-width:600px;margin:0 auto;font-size:1.02rem}
.hl{color:var(--accent)}
.trust-badge{display:inline-flex;align-items:center;gap:.5rem;margin-top:1rem;font-size:.85rem;color:var(--ok);
  background:rgba(5,150,105,.07);border:1px solid rgba(5,150,105,.22);padding:.4rem .9rem;border-radius:999px}
[data-theme="dark"] .trust-badge{color:#34d399;background:rgba(52,211,153,.08);border-color:rgba(52,211,153,.25)}
.pulse-dot{width:7px;height:7px;border-radius:50%;background:var(--ok);box-shadow:0 0 0 0 rgba(5,150,105,.5);animation:pulse 2s infinite}
[data-theme="dark"] .pulse-dot{box-shadow:0 0 0 0 rgba(52,211,153,.5)}
@keyframes pulse{70%{box-shadow:0 0 0 8px rgba(5,150,105,0)}100%{box-shadow:0 0 0 0 rgba(5,150,105,0)}}

/* --- hub grid --- */
.pa-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(240px,1fr));gap:1.1rem;margin-top:1rem}
.pa-card{display:flex;flex-direction:column;gap:.55rem;padding:1.35rem 1.25rem;
  background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);text-decoration:none;color:var(--text);
  transition:border-color .15s,box-shadow .15s,transform .12s}
.pa-card:hover{border-color:var(--accent);box-shadow:0 4px 20px rgba(13,148,136,.12);transform:translateY(-2px)}
.pa-card-icon{font-size:1.6rem;color:var(--accent);line-height:1}
.pa-card-name{font-family:var(--font-h);font-weight:700;font-size:1rem}
.pa-card-desc{font-size:.85rem;color:var(--muted);line-height:1.45;margin:0}

/* --- shared tool UI --- */

/* dropzone */
.pa-drop{border:2px dashed var(--border);border-radius:var(--radius);padding:2.5rem 1.5rem;text-align:center;
  color:var(--muted);cursor:pointer;transition:border-color .15s,background .15s;background:var(--surface)}
.pa-drop:hover,.pa-drop.drag-over{border-color:var(--accent);background:rgba(13,148,136,.04)}

/* buttons */
.pa-btn,.pa-btn-primary{display:inline-flex;align-items:center;gap:.4rem;font-family:var(--font-b);font-weight:600;font-size:.88rem;
  cursor:pointer;border-radius:999px;padding:.5rem 1rem;text-decoration:none;border:1px solid transparent;transition:background .15s,border-color .15s}
.pa-btn{background:transparent;color:var(--text);border-color:var(--border)}
.pa-btn:hover{border-color:var(--accent)}
.pa-btn-primary{background:var(--accent);color:#fff}
.pa-btn-primary:hover{background:var(--accent-2)}

/* file list */
.pa-filelist{display:flex;flex-direction:column;gap:.4rem;margin-top:.75rem}

/* actions & groups */
.pa-actions{display:flex;gap:.7rem;flex-wrap:wrap;align-items:center;margin:1.2rem 0}
.pa-angle-group{display:flex;gap:1.2rem;flex-wrap:wrap;margin:.4rem 0}
.pa-file{display:flex;align-items:center;justify-content:space-between;gap:.6rem;font-size:.85rem;
  background:var(--surface2);border:1px solid var(--border);border-radius:8px;padding:.45rem .7rem}
.pa-file span{overflow:hidden;text-overflow:ellipsis;white-space:nowrap;color:var(--text)}
.pa-file button{background:none;border:none;color:var(--err);cursor:pointer;font-size:.85rem;padding:0}

/* result / note areas */
.pa-result{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);padding:1.25rem;margin-top:1rem}
.pa-note{font-size:.82rem;color:var(--muted);margin:.5rem 0 0;display:flex;align-items:center;gap:.35rem}

/* tool header */
.pa-tool-head{text-align:center;margin-bottom:2rem}
.pa-tool-head h1{font-family:var(--font-h);font-weight:800;font-size:clamp(1.5rem,3.5vw,2.2rem);line-height:1.15;letter-spacing:-.02em;margin:0 0 .4rem}
.pa-tool-head p{color:var(--muted);font-size:1rem;margin:0}

/* thumbnails */
.pa-thumbs{display:flex;flex-wrap:wrap;gap:.75rem;margin-top:1rem}
.pa-thumb{width:120px;height:160px;border:1px solid var(--border);border-radius:10px;overflow:hidden;
  background:var(--surface2);display:flex;align-items:center;justify-content:center;position:relative;flex-shrink:0}
.pa-thumb img{max-width:100%;max-height:100%;object-fit:contain}
.pa-thumb canvas{max-width:100%;max-height:100%;display:block}
.pa-thumb-x{position:absolute;top:4px;right:4px;width:20px;height:20px;border:none;border-radius:50%;
  background:rgba(0,0,0,.55);color:#fff;font-size:13px;line-height:1;cursor:pointer;padding:0;display:flex;align-items:center;justify-content:center}
.pa-thumb-x:hover{background:var(--danger,#ef4444)}
.pa-thumb[draggable]{cursor:grab}

/* --- footer --- */
.pa-footer{border-top:1px solid var(--border);background:var(--surface2);margin-top:3rem}
.pa-footer-in{max-width:var(--reading);margin:0 auto;padding:1.8rem clamp(1rem,4vw,2.5rem);
  display:flex;flex-wrap:wrap;align-items:center;gap:1rem 2rem;justify-content:space-between}
.pa-footer-brand{display:flex;align-items:center;gap:.6rem}
.pa-footer-id strong{font-family:var(--font-h);font-weight:700;display:block;line-height:1.1}
.pa-footer-by{font-size:.82rem;color:var(--muted)}
.pa-footer-by a{color:var(--accent);text-decoration:none;font-weight:600}
.pa-footer-by a:hover{text-decoration:underline}
.pa-footer-pitch{flex:1 1 280px;min-width:220px;font-size:.85rem;color:var(--muted);margin:0}
.pa-footer-links{display:flex;gap:1.1rem;flex-wrap:wrap}
.pa-footer-links a{color:var(--muted);text-decoration:none;font-size:.85rem;font-weight:500}
.pa-footer-links a:hover{color:var(--text)}

/* --- funnel block (reusable across tools) --- */
.pa-funnel{margin-top:3rem;text-align:center;background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);padding:2rem clamp(1rem,4vw,2.5rem)}
.pa-funnel h2{font-family:var(--font-h);font-weight:700;font-size:clamp(1.2rem,3vw,1.6rem);margin:0 0 .5rem}
.pa-funnel p{color:var(--muted);max-width:520px;margin:0 auto 1.2rem}
.pa-funnel-cta{display:flex;gap:.7rem;justify-content:center;flex-wrap:wrap}

@media(prefers-reduced-motion:reduce){*{animation:none!important;transition:none!important;scroll-behavior:auto!important}}
@media(max-width:600px){.pa-grid{grid-template-columns:1fr}}