:root{
  --bg:#f6f7f9; --card:#fff; --text:#1b1f24; --muted:#6b7280;
  --border:#e3e6ea; --accent:#1c5fd6; --accent-dark:#164ba8;
  --danger:#b4232b; --ok-bg:#e7f6ec; --ok-fg:#1a6b36;
  --err-bg:#fdecec; --err-fg:#a3262d; --tag:#eef2f8;
}
@media (prefers-color-scheme:dark){
  :root{
    --bg:#12151a; --card:#1a1f27; --text:#e6e9ee; --muted:#9aa4b2;
    --border:#2a3140; --accent:#5b93f0; --accent-dark:#7aa9f5;
    --danger:#e8767c; --ok-bg:#12321f; --ok-fg:#7ddba0;
    --err-bg:#3a1a1c; --err-fg:#f0a4a8; --tag:#232b36;
  }
}
*{box-sizing:border-box}
body{
  margin:0; background:var(--bg); color:var(--text);
  font:15px/1.55 system-ui,-apple-system,"Segoe UI",Roboto,Helvetica,Arial,sans-serif;
}
main{max-width:1000px; margin:0 auto; padding:28px 20px 60px}
h1{font-size:1.5rem; margin:0 0 18px; letter-spacing:-.01em}

/* ---------- barre du haut ---------- */
.topbar{
  display:flex; align-items:center; gap:14px; flex-wrap:wrap;
  padding:12px 20px; background:var(--card); border-bottom:1px solid var(--border);
}
.brand{font-weight:600; color:var(--text); text-decoration:none; margin-right:auto}
.topbar nav{display:flex; align-items:center; gap:10px; flex-wrap:wrap}
.who{color:var(--muted); font-size:.88rem}

/* ---------- boutons ---------- */
.btn{
  display:inline-block; padding:7px 13px; border:1px solid var(--border);
  border-radius:7px; background:var(--card); color:var(--text);
  font-size:.88rem; font-family:inherit; text-decoration:none; cursor:pointer;
  white-space:nowrap;
}
.btn:hover{border-color:var(--accent); color:var(--accent)}
.btn-primary{background:var(--accent); border-color:var(--accent); color:#fff}
.btn-primary:hover{background:var(--accent-dark); border-color:var(--accent-dark); color:#fff}
.btn-ghost{background:transparent}
.btn-danger{color:var(--danger)}
.btn-danger:hover{border-color:var(--danger); color:var(--danger)}
.btn-small{padding:4px 9px; font-size:.82rem}
.btn.block{width:100%; margin-top:16px; padding:10px}
.inline{display:inline}

/* ---------- messages ---------- */
.flash{padding:10px 14px; border-radius:8px; margin:0 0 16px; font-size:.9rem}
.flash-success{background:var(--ok-bg); color:var(--ok-fg)}
.flash-error{background:var(--err-bg); color:var(--err-fg)}

/* ---------- filtres ---------- */
.filters{display:flex; gap:8px; flex-wrap:wrap; margin-bottom:18px}
.filters input[type=search]{flex:1; min-width:200px}

/* ---------- champs ---------- */
input,select,textarea{
  padding:8px 10px; border:1px solid var(--border); border-radius:7px;
  background:var(--card); color:var(--text); font:inherit; font-size:.9rem;
  max-width:100%;
}
input:focus,select:focus,textarea:focus{outline:2px solid var(--accent); outline-offset:-1px}
label{display:block; margin:14px 0 5px; font-size:.85rem; font-weight:600}
.card form input:not([type=file]), .card form textarea, .card form select{width:100%}
.req{color:var(--danger)}

/* ---------- tableau ---------- */
.table-wrap{overflow-x:auto; background:var(--card); border:1px solid var(--border); border-radius:10px}
table{width:100%; border-collapse:collapse; font-size:.9rem}
th,td{padding:11px 14px; text-align:left; border-bottom:1px solid var(--border); vertical-align:top}
th{font-size:.78rem; text-transform:uppercase; letter-spacing:.04em; color:var(--muted); font-weight:600}
tbody tr:last-child td{border-bottom:none}
.right{text-align:right}
.num{white-space:nowrap; color:var(--muted); font-variant-numeric:tabular-nums}
.doc-title{display:block; font-weight:600; color:var(--accent); text-decoration:none}
.doc-title:hover{text-decoration:underline}
.desc{display:block; color:var(--muted); font-size:.85rem; margin-top:2px}
.fname{display:block; color:var(--muted); font-size:.78rem; margin-top:3px; font-family:ui-monospace,monospace}
.tag{display:inline-block; padding:2px 9px; border-radius:20px; background:var(--tag); font-size:.8rem}
.actions{display:flex; gap:6px; justify-content:flex-end; flex-wrap:wrap}
.count{color:var(--muted); font-size:.85rem; margin-top:12px}
.empty{padding:36px; text-align:center; color:var(--muted); background:var(--card);
  border:1px dashed var(--border); border-radius:10px}

/* ---------- cartes ---------- */
.card{background:var(--card); border:1px solid var(--border); border-radius:10px; padding:24px}
.narrow{max-width:420px; margin:40px auto}
.center{text-align:center}
.errcode{font-size:2.6rem; color:var(--muted); margin-bottom:8px}
.hint{color:var(--muted); font-size:.84rem; margin:6px 0}
.row{display:flex; gap:10px; margin-top:22px; align-items:center}

footer{border-top:1px solid var(--border); padding:18px 20px; text-align:center}
footer p{color:var(--muted); font-size:.82rem; margin:0}

/* ---------- portail d'accès ---------- */
.gate{max-width:380px}
.gate .code-input{
  width:100%; text-align:center; letter-spacing:.18em; font-size:1.05rem;
  padding:11px 10px; font-family:ui-monospace,monospace;
}
.small{font-size:.78rem}
.sr-only{
  position:absolute; width:1px; height:1px; overflow:hidden;
  clip:rect(0 0 0 0); white-space:nowrap;
}

/* ---------- aperçu PDF ---------- */
.viewer-head{display:flex; gap:18px; justify-content:space-between;
  align-items:flex-start; flex-wrap:wrap; margin-bottom:16px}
.viewer-title{margin:0 0 4px; font-size:1.25rem}
.viewer-desc{margin:8px 0 0; max-width:60ch}
.viewer-actions{display:flex; gap:8px; flex-wrap:wrap}
.pdf-frame{
  background:var(--card); border:1px solid var(--border); border-radius:10px;
  overflow:hidden; height:78vh; min-height:420px;
}
.pdf-frame iframe{width:100%; height:100%; border:0; display:block}

/* ---------- page du code d'accès ---------- */
.narrow hr{border:0; border-top:1px solid var(--border); margin:24px 0}
.sub{font-size:1rem; margin:0 0 4px}
.code-reveal{
  background:var(--ok-bg); border-radius:9px; padding:14px 16px; margin-bottom:18px;
}
.code-reveal .hint{color:var(--ok-fg)}
.code-value{
  margin:6px 0; font-family:ui-monospace,monospace; font-size:1.7rem;
  font-weight:600; letter-spacing:.22em; color:var(--ok-fg);
}