/* ────────────────────────────────────────────────────────────
   Documenti interni · Blueye Simulations
   Stile dell'area riservata (login + indice documenti).
   Coordinato con il sito principale: tema scuro, accento teal,
   stessa famiglia tipografica e grana.
   ──────────────────────────────────────────────────────────── */

@import url('https://fonts.bunny.net/css?family=instrument-serif:400i|inter:300,400,500,600,700|jetbrains-mono:300,400,500,700|space-grotesk:400,500,600,700|chivo-mono:400,500,600,700&display=swap');
@import url('https://fonts.cdnfonts.com/css/dune-rise');

:root{
  --ink:#0A0A12;
  --ink-2:#11111C;
  --paper:#F5F2EA;
  --paper-dim:#A8A6A0;
  --paper-mute:#6B6B7A;
  --line:rgba(245,242,234,0.08);
  --line-2:rgba(245,242,234,0.16);
  --teal:#3EB4FF;
  --teal-glow:rgba(62,180,255,0.18);
  --red:#FF5A5F;
  --font-display:"Instrument Serif", ui-serif, Georgia, serif;
  --font-head:"Space Grotesk", "Inter", system-ui, sans-serif;
  --font-sans:"Inter", system-ui, -apple-system, sans-serif;
  --font-mono:"JetBrains Mono", ui-monospace, monospace;
  --font-ui:"Chivo Mono", ui-monospace, monospace;
  --pad-x:clamp(20px, 4vw, 64px);
  --maxw:1080px;
}

*,*::before,*::after{box-sizing:border-box}
html,body{margin:0;padding:0}
html{scroll-behavior:smooth}
body{
  background:var(--ink);
  color:var(--paper);
  font-family:var(--font-sans);
  font-size:15px;
  line-height:1.55;
  -webkit-font-smoothing:antialiased;
  -moz-osx-font-smoothing:grayscale;
  min-height:100vh;
  overflow-x:hidden;
}
a{color:inherit;text-decoration:none}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer;padding:0}
::selection{background:var(--teal);color:var(--ink)}

/* grana */
body::before{
  content:"";position:fixed;inset:0;pointer-events:none;z-index:1;
  background-image:url("data:image/svg+xml;base64,PHN2ZyB4bWxucz0naHR0cDovL3d3dy53My5vcmcvMjAwMC9zdmcnIHdpZHRoPScxNjAnIGhlaWdodD0nMTYwJz48ZmlsdGVyIGlkPSduJz48ZmVUdXJidWxlbmNlIHR5cGU9J2ZyYWN0YWxOb2lzZScgYmFzZUZyZXF1ZW5jeT0nMC45JyBudW1PY3RhdmVzPScyJyBzdGl0Y2hUaWxlcz0nc3RpdGNoJy8+PGZlQ29sb3JNYXRyaXggdmFsdWVzPScwIDAgMCAwIDAuOTYgMCAwIDAgMCAwLjk1IDAgMCAwIDAgMC45MiAwIDAgMCAwLjA2IDAnLz48L2ZpbHRlcj48cmVjdCB3aWR0aD0nMTAwJScgaGVpZ2h0PScxMDAlJyBmaWx0ZXI9J3VybCgjbiknLz48L3N2Zz4=");
  opacity:.5;mix-blend-mode:overlay;
}

/* logo (come nel sito) */
.brand{display:inline-flex;align-items:center;gap:10px;color:var(--paper);font-family:var(--font-ui);font-size:12px;letter-spacing:.12em;text-transform:uppercase}
.brand .dot{width:10px;height:10px;border-radius:50%;background:var(--teal);box-shadow:0 0 12px var(--teal-glow);position:relative;flex-shrink:0}
.brand .dot::after{content:"";position:absolute;inset:-6px;border:1px solid var(--teal);border-radius:50%;opacity:.4;animation:pulse 3s ease-in-out infinite}
@keyframes pulse{0%,100%{transform:scale(1);opacity:.4}50%{transform:scale(1.4);opacity:0}}
.brand b{font-family:'Dune Rise', var(--font-head);font-weight:400;letter-spacing:.05em}
.brand .sub{font-family:'Dune Rise', var(--font-head);font-weight:400;color:var(--paper-mute);letter-spacing:.10em}

.eyebrow{font-family:var(--font-mono);font-size:11px;letter-spacing:.22em;text-transform:uppercase;color:var(--teal);display:inline-flex;align-items:center;gap:8px}
.eyebrow::before{content:"";width:6px;height:6px;background:var(--teal);border-radius:50%;box-shadow:0 0 12px var(--teal-glow);animation:blink 2s ease infinite}
@keyframes blink{0%,100%{opacity:1}50%{opacity:.4}}
.micro{font-family:var(--font-mono);font-size:11px;letter-spacing:.18em;text-transform:uppercase;color:var(--paper-mute)}

/* ─────────── LOGIN ─────────── */
.login-wrap{
  position:relative;z-index:2;
  min-height:100vh;
  display:flex;align-items:center;justify-content:center;
  padding:48px var(--pad-x);
}
/* alone teal ambientale */
.login-wrap::after{
  content:"";position:fixed;z-index:0;width:620px;height:620px;border-radius:50%;
  left:50%;top:42%;transform:translate(-50%,-50%);
  background:radial-gradient(circle, var(--teal-glow), transparent 62%);
  opacity:.5;pointer-events:none;mix-blend-mode:screen;
}
.login-card{
  position:relative;z-index:2;
  width:100%;max-width:460px;
  border:1px solid var(--line-2);
  background:linear-gradient(180deg, rgba(245,242,234,.035), rgba(245,242,234,.01));
  backdrop-filter:blur(8px);-webkit-backdrop-filter:blur(8px);
  padding:clamp(32px,5vw,48px);
}
.login-card .brand{margin-bottom:40px}
.login-card .eyebrow{margin-bottom:20px}
.login-card h1{
  font-family:var(--font-display);font-style:italic;font-weight:400;
  font-size:clamp(36px,5.5vw,46px);line-height:1.16;letter-spacing:-.02em;
  margin:0 0 26px;
}
.login-card .blurb{color:var(--paper-dim);font-size:15px;max-width:40ch;margin:0 0 32px}

.field{display:flex;flex-direction:column;gap:10px;margin-bottom:18px}
.field label{font-family:var(--font-mono);font-size:11px;letter-spacing:.18em;text-transform:uppercase;color:var(--paper-mute)}
.field input{
  width:100%;
  background:rgba(10,10,18,.6);
  border:1px solid var(--line-2);
  color:var(--paper);
  font-family:var(--font-mono);font-size:15px;letter-spacing:.06em;
  padding:15px 16px;border-radius:0;
  transition:border-color .2s, box-shadow .2s;
}
.field input::placeholder{color:var(--paper-mute);letter-spacing:.12em}
.field input:focus{outline:none;border-color:var(--teal);box-shadow:0 0 0 1px var(--teal), 0 0 18px var(--teal-glow)}

.btn-submit{
  width:100%;
  display:inline-flex;align-items:center;justify-content:center;gap:10px;
  background:var(--teal);color:var(--ink);
  font-family:var(--font-ui);font-size:12px;letter-spacing:.16em;text-transform:uppercase;font-weight:500;
  padding:16px 22px;border-radius:999px;
  transition:background .25s, transform .2s;
}
.btn-submit:hover{background:var(--paper);transform:translateY(-1px)}
.btn-submit .arr{transition:transform .25s}
.btn-submit:hover .arr{transform:translateX(4px)}

.login-error{
  display:flex;align-items:center;gap:10px;
  font-family:var(--font-mono);font-size:12px;letter-spacing:.04em;
  color:var(--red);
  border:1px solid rgba(255,90,95,.35);
  background:rgba(255,90,95,.06);
  padding:12px 14px;margin-bottom:22px;
}
.login-error::before{content:"⚠";font-size:13px}

.login-foot{
  margin-top:34px;padding-top:22px;border-top:1px solid var(--line);
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
}
.login-foot a{font-family:var(--font-mono);font-size:11px;letter-spacing:.16em;text-transform:uppercase;color:var(--paper-dim);transition:color .2s}
.login-foot a:hover{color:var(--paper)}
.login-foot a .arr{color:var(--teal)}

/* ─────────── INDICE DOCUMENTI ─────────── */
.shell{max-width:var(--maxw);margin:0 auto;padding-left:var(--pad-x);padding-right:var(--pad-x);position:relative;z-index:2}

.area-top{
  position:relative;z-index:2;
  border-bottom:1px solid var(--line);
  background:linear-gradient(to bottom, rgba(10,10,18,.85), rgba(10,10,18,0));
}
.area-top .row{
  max-width:var(--maxw);margin:0 auto;padding:18px var(--pad-x);
  display:flex;align-items:center;justify-content:space-between;gap:16px;
}
.area-top .right{display:flex;align-items:center;gap:18px}
.logout-link{
  font-family:var(--font-ui);font-size:11px;letter-spacing:.16em;text-transform:uppercase;
  color:var(--paper-dim);border:1px solid var(--line-2);border-radius:999px;padding:9px 16px;
  transition:border-color .2s,color .2s;
}
.logout-link:hover{border-color:var(--paper);color:var(--paper)}
.back-site{font-family:var(--font-mono);font-size:11px;letter-spacing:.16em;text-transform:uppercase;color:var(--paper-mute);transition:color .2s}
.back-site:hover{color:var(--paper)}

.area-head{padding:72px 0 8px}
.area-head .eyebrow{margin-bottom:22px}
.area-head h1{
  font-family:var(--font-head);font-weight:600;
  font-size:clamp(40px,6.5vw,76px);line-height:.98;letter-spacing:-.035em;margin:0;
}
.area-head h1 .it{font-family:var(--font-display);font-style:italic;font-weight:400;letter-spacing:-.01em}
.area-head .lead{color:var(--paper-dim);font-size:17px;line-height:1.6;max-width:60ch;margin:28px 0 0}

.conf-note{
  display:inline-flex;align-items:center;gap:10px;margin-top:26px;
  font-family:var(--font-mono);font-size:11px;letter-spacing:.14em;text-transform:uppercase;
  color:var(--paper-mute);border:1px solid var(--line-2);padding:8px 14px;border-radius:999px;
}
.conf-note .lock{color:var(--teal)}

.doc-list{
  list-style:none;margin:56px 0 0;padding:0;
  border-top:1px solid var(--line);
}
.doc-item{border-bottom:1px solid var(--line)}
.doc-link{
  display:grid;grid-template-columns:48px 1fr auto;gap:28px;align-items:center;
  padding:30px 8px;transition:background .3s, padding .3s;
}
.doc-link:hover{background:linear-gradient(90deg, rgba(62,180,255,.05), transparent 70%);padding-left:18px}
.doc-idx{font-family:var(--font-mono);font-size:13px;color:var(--teal);letter-spacing:.1em;align-self:start;padding-top:5px}
.doc-main{min-width:0}
.doc-meta{display:block;font-family:var(--font-mono);font-size:11px;letter-spacing:.16em;text-transform:uppercase;color:var(--paper-mute);margin-bottom:9px}
.doc-title{display:block;font-family:var(--font-head);font-weight:600;font-size:clamp(22px,2.6vw,30px);line-height:1.1;letter-spacing:-.02em;color:var(--paper)}
.doc-desc{display:block;color:var(--paper-dim);font-size:14px;line-height:1.55;margin-top:9px;max-width:64ch}
.doc-open{
  display:inline-flex;align-items:center;gap:10px;white-space:nowrap;
  font-family:var(--font-ui);font-size:11px;letter-spacing:.16em;text-transform:uppercase;color:var(--paper);
}
.doc-open .arr{color:var(--teal);transition:transform .25s}
.doc-link:hover .doc-open .arr{transform:translateX(5px)}

.doc-empty{padding:48px 0;color:var(--paper-mute);font-family:var(--font-mono);font-size:13px;letter-spacing:.06em}

.area-foot{
  position:relative;z-index:2;
  margin-top:96px;padding:30px 0 48px;border-top:1px solid var(--line);
}
.area-foot .row{
  max-width:var(--maxw);margin:0 auto;padding:0 var(--pad-x);
  display:flex;align-items:center;justify-content:space-between;gap:14px;flex-wrap:wrap;
  font-family:var(--font-mono);font-size:11px;letter-spacing:.16em;text-transform:uppercase;color:var(--paper-mute);
}

@media(max-width:680px){
  .doc-link{grid-template-columns:1fr;gap:14px;padding:26px 4px}
  .doc-idx{padding-top:0}
  .doc-open{align-self:start}
}