:root{
  --bg:#f6f7f9;
  --card:#ffffff;
  --ink:#0f172a;
  --muted:#64748b;
  --line:#e2e8f0;
  --primary:#0f766e;
  --primary-ink:#ffffff;
  --danger:#b91c1c;
  --shadow: 0 1px 2px rgba(15,23,42,.04), 0 4px 12px rgba(15,23,42,.06);
  --radius:14px;
}
*{box-sizing:border-box}
html,body{margin:0;padding:0;background:var(--bg);color:var(--ink);
  font:16px/1.45 -apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,sans-serif;}
a{color:var(--primary);text-decoration:none}
a:hover{text-decoration:underline}
small{color:var(--muted)}
.muted{color:var(--muted)}

.topbar{
  position:sticky;top:0;z-index:10;
  display:flex;align-items:center;justify-content:space-between;gap:.5rem;
  padding:.7rem 1rem;background:var(--card);border-bottom:1px solid var(--line);
  padding-top:max(.7rem, env(safe-area-inset-top));
}
.brand{display:inline-flex;align-items:center;line-height:0;text-decoration:none}
.brand-logo{height:32px;width:auto;display:block}
@media (max-width:480px){.brand-logo{height:26px}}
.user-chip{display:flex;align-items:center;gap:.6rem;font-size:.85rem}
.user-name{font-weight:600}
.user-nif{color:var(--muted)}
.inline{display:inline}
.link{background:none;border:0;padding:0;color:var(--primary);cursor:pointer;font:inherit}

.container{max-width:880px;margin:0 auto;padding:1rem;
  padding-bottom:max(1rem, env(safe-area-inset-bottom))}

.card{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);
  box-shadow:var(--shadow);padding:1.1rem;margin-bottom:1rem}
.card h1,.card h2{margin:.1rem 0 1rem}
.card h1{font-size:1.25rem}
.card h2{font-size:1.05rem}

.alert{background:#fef2f2;border:1px solid #fecaca;color:var(--danger);
  padding:.6rem .8rem;border-radius:10px;margin-bottom:.8rem}

label{display:block;margin-bottom:.8rem}
label > span{display:block;font-size:.85rem;color:var(--muted);margin-bottom:.25rem}
input[type=email],input[type=password],input[type=text]{
  width:100%;padding:.7rem .8rem;border:1px solid var(--line);border-radius:10px;
  font:inherit;background:#fff}
input:focus{outline:2px solid var(--primary);outline-offset:1px;border-color:var(--primary)}

.btn{display:inline-block;padding:.65rem 1rem;border-radius:10px;border:1px solid var(--line);
  background:#fff;color:var(--ink);font:inherit;cursor:pointer}
.btn.primary{background:var(--primary);color:var(--primary-ink);border-color:var(--primary)}
.btn.primary:hover{filter:brightness(1.05)}
.btn.block{display:block;width:100%;text-align:center}
.btn:disabled{opacity:.6;cursor:wait}

.login-card{max-width:420px;margin:2rem auto}

.file-drop{display:block;border:2px dashed var(--line);border-radius:var(--radius);
  padding:1.25rem;text-align:center;background:#fbfbfd;cursor:pointer;margin-bottom:.8rem}
.file-drop input{position:absolute;left:-9999px}
.file-drop-inner strong{display:block;color:var(--primary);margin-bottom:.25rem}
.file-drop-inner small{display:block}
.file-summary{display:block;margin-top:.4rem;font-weight:600;color:var(--ink)}

.invoice-list{list-style:none;margin:0;padding:0}
.invoice-list li + li{border-top:1px solid var(--line)}
.row{display:flex;align-items:center;justify-content:space-between;gap:.8rem;
  padding:.8rem .2rem;color:inherit;text-decoration:none}
.row:hover{background:#fafafa}
.row-title{font-weight:600}
.row-sub{color:var(--muted);font-size:.85rem}
.row-amount{font-variant-numeric:tabular-nums;font-weight:600}

.grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:.8rem}
.grid > div small{display:block;color:var(--muted);font-size:.8rem;margin-bottom:.15rem}
@media (min-width:600px){.grid{grid-template-columns:repeat(4,minmax(0,1fr))}}

.table-wrap{overflow-x:auto;-webkit-overflow-scrolling:touch}
table.lines{width:100%;border-collapse:collapse;font-size:.9rem}
table.lines th,table.lines td{padding:.5rem .55rem;border-bottom:1px solid var(--line);text-align:left;vertical-align:top}
table.lines th{background:#f8fafc;font-weight:600;color:var(--muted);font-size:.78rem;text-transform:uppercase;letter-spacing:.04em}
table.lines td.num,table.lines th.num{text-align:right;font-variant-numeric:tabular-nums;white-space:nowrap}

pre.raw{background:#0f172a;color:#e2e8f0;padding:.8rem;border-radius:10px;overflow:auto;font-size:.8rem}