:root{
  --bg:#f4f5f7; --card:#fff; --ink:#1f2430; --muted:#6b7280; --line:#e5e7eb;
  --blue:#2563eb; --blue-d:#1d4ed8; --green:#16a34a; --amber:#d97706; --red:#dc2626;
  --radius:10px; --shadow:0 1px 3px rgba(0,0,0,.08);
}
*{box-sizing:border-box}
html,body{margin:0;padding:0}
body{background:var(--bg);color:var(--ink);font:15px/1.5 system-ui,-apple-system,Segoe UI,Roboto,Arial,sans-serif}
a{color:var(--blue);text-decoration:none}
a:hover{text-decoration:underline}
h1{font-size:1.4rem;margin:.2rem 0 1rem}
h2{font-size:1.1rem;margin:0 0 .6rem}
.muted{color:var(--muted)}
.small{font-size:.85rem}
.error{color:var(--red)}
code{background:#eef0f3;padding:.1em .35em;border-radius:4px;font-size:.9em}

/* layout */
.container{max-width:920px;margin:0 auto;padding:16px}
.topbar{display:flex;align-items:center;gap:16px;background:var(--card);border-bottom:1px solid var(--line);
  padding:10px 16px;position:sticky;top:0;z-index:10}
.brand{font-size:1.05rem;color:var(--ink)}
.nav{display:flex;align-items:center;gap:16px;margin-left:auto}
.nav a{color:var(--ink)}
.navtoggle{display:none;background:none;border:0;font-size:1.3rem;margin-left:auto;cursor:pointer}
.inline{display:inline}
.linklike{background:none;border:0;color:var(--ink);cursor:pointer;font:inherit;padding:0}
.bell{position:relative}
.badge{display:inline-block;min-width:18px;height:18px;line-height:18px;border-radius:9px;background:var(--red);
  color:#fff;font-size:.72rem;text-align:center;padding:0 5px;vertical-align:top}
.badge:empty{display:none}

/* cards & tables */
.card{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow);
  padding:16px;margin-bottom:16px}
.table{width:100%;border-collapse:collapse}
.table th,.table td{text-align:left;padding:8px;border-bottom:1px solid var(--line);font-size:.9rem}
.table th{color:var(--muted);font-weight:600}

/* forms */
label{display:block;font-size:.85rem;color:var(--muted);margin:.6rem 0 .2rem}
input,select,textarea{width:100%;padding:10px;border:1px solid var(--line);border-radius:8px;font:inherit;background:#fff}
textarea{min-height:90px;resize:vertical}
input:focus,select:focus,textarea:focus{outline:2px solid #bcd0ff;border-color:var(--blue)}
.row{display:flex;gap:12px;flex-wrap:wrap}
.row>*{flex:1;min-width:160px}
.check{display:flex;align-items:center;gap:8px;margin:.4rem 0}
.check input{width:auto}

/* buttons */
.btn{display:inline-block;border:1px solid var(--line);background:#fff;color:var(--ink);padding:9px 14px;
  border-radius:8px;cursor:pointer;font:inherit;text-align:center}
.btn:hover{text-decoration:none;background:#f8f9fb}
.btn.primary{background:var(--blue);border-color:var(--blue);color:#fff}
.btn.primary:hover{background:var(--blue-d)}
.btn.ghost{background:#fff}
.btn.danger{color:var(--red);border-color:#f1c2c2}
.btn.block{display:block;width:100%}
.btn[disabled]{opacity:.5;cursor:not-allowed}
.btn-row{display:flex;gap:8px;flex-wrap:wrap;margin-top:8px}

/* auth */
.authwrap{min-height:80vh;display:flex;align-items:center;justify-content:center}
.auth-card{max-width:380px;width:100%;text-align:center}
.auth-logo{font-weight:400;font-size:1.3rem;margin-bottom:1rem}
.auth-card form{text-align:left}

/* status pills */
.pill{display:inline-block;padding:2px 10px;border-radius:999px;font-size:.78rem;font-weight:600}
.pill.open{background:#e0e7ff;color:#3730a3}
.pill.in_progress{background:#dbeafe;color:#1e40af}
.pill.blocked{background:#fee2e2;color:#991b1b}
.pill.awaiting_review{background:#fef3c7;color:#92400e}
.pill.done{background:#dcfce7;color:#166534}
.pill.cancelled{background:#f3f4f6;color:#4b5563}
.prio-urgent{color:var(--red);font-weight:700}
.prio-high{color:var(--amber);font-weight:600}

/* task list */
.tasklist{list-style:none;padding:0;margin:0}
.taskitem{display:block;padding:12px;border:1px solid var(--line);border-radius:8px;background:#fff;margin-bottom:8px}
.taskitem:hover{border-color:#cdd5e0}
.taskitem .meta{color:var(--muted);font-size:.83rem;margin-top:4px}
.taskitem .sid{color:var(--muted);font-variant-numeric:tabular-nums}
.filters{display:flex;gap:8px;flex-wrap:wrap;margin-bottom:12px}
.filters select,.filters input{width:auto;flex:0 0 auto}

/* evidence */
.evidence{background:#fffbeb;border:1px solid #fde68a;border-radius:8px;padding:10px;margin:10px 0}
.evidence.ok{background:#f0fdf4;border-color:#bbf7d0}

/* gallery */
.gallery{display:grid;grid-template-columns:repeat(auto-fill,minmax(110px,1fr));gap:8px}
.gallery a{display:block;border:1px solid var(--line);border-radius:8px;overflow:hidden;background:#fff;position:relative}
.gallery img{width:100%;height:100px;object-fit:cover;display:block}
.gallery .ev{position:absolute;top:4px;left:4px;background:rgba(0,0,0,.6);color:#fff;font-size:.7rem;
  padding:1px 6px;border-radius:6px}
.filechip{display:inline-flex;align-items:center;gap:6px;padding:6px 10px;border:1px solid var(--line);
  border-radius:8px;background:#fff;margin:4px 4px 0 0}

/* comments */
.timeline{list-style:none;padding:0;margin:0}
.comment{padding:10px 0;border-bottom:1px solid var(--line)}
.comment .who{font-weight:600}
.comment .when{color:var(--muted);font-size:.8rem}
.comment.system{color:var(--muted);font-style:italic}

/* lightbox */
#lightbox{position:fixed;inset:0;background:rgba(0,0,0,.85);display:none;align-items:center;justify-content:center;z-index:50}
#lightbox.open{display:flex}
#lightbox img,#lightbox video{max-width:92vw;max-height:88vh}
#lightbox .x{position:absolute;top:14px;right:18px;color:#fff;font-size:2rem;cursor:pointer;background:none;border:0}

@media (max-width:640px){
  .nav{display:none;flex-direction:column;align-items:flex-start;position:absolute;top:52px;right:8px;
    background:var(--card);border:1px solid var(--line);border-radius:8px;padding:12px;box-shadow:var(--shadow)}
  .nav.show{display:flex}
  .navtoggle{display:block}
}