:root{
  --bg:#f4f6f8; --panel:#fff; --ink:#1f2937; --muted:#6b7280; --line:#e5e7eb;
  --brand:#2563eb; --up:#15803d; --upbg:#dcfce7; --down:#b91c1c; --downbg:#fee2e2;
  --warn:#92400e; --warnbg:#fef3c7; --gray:#6b7280; --graybg:#f3f4f6;
}
*{box-sizing:border-box}
body{margin:0;font:14px/1.5 system-ui,Segoe UI,Roboto,sans-serif;background:var(--bg);color:var(--ink)}
a{color:var(--brand);text-decoration:none}
a:hover{text-decoration:underline}
h1,h2,h3{margin:.2rem 0 .8rem}

.topbar{display:flex;align-items:center;gap:1.2rem;background:#0f172a;color:#fff;padding:0 1.2rem;height:52px;position:sticky;top:0;z-index:10}
.topbar .brand{font-weight:700}
.topbar nav{display:flex;gap:.3rem;flex:1}
.topbar nav a{color:#cbd5e1;padding:.35rem .7rem;border-radius:6px}
.topbar nav a:hover{background:#1e293b;text-decoration:none}
.topbar nav a.active{background:var(--brand);color:#fff}
.topbar .logout{color:#94a3b8}

main{max-width:1200px;margin:1.2rem auto;padding:0 1.2rem}
.foot{text-align:center;color:var(--muted);padding:2rem;font-size:12px}
.muted{color:var(--muted)}
.xs{font-size:11px;margin-top:2px}
.err{color:var(--down);font-size:12px}

.flash{background:#dcfce7;color:#166534;padding:.6rem .9rem;border-radius:8px;margin-bottom:1rem}

.cards{display:grid;grid-template-columns:repeat(4,1fr);gap:.8rem;margin-bottom:1rem}
.card{background:var(--panel);border:1px solid var(--line);border-radius:10px;padding:1rem;text-align:center;color:var(--ink)}
.card:hover{text-decoration:none}
.card .num{font-size:1.8rem;font-weight:700}
.card.up .num{color:var(--up)} .card.down .num{color:var(--down)} .card.gray .num{color:var(--gray)}
.card.warn{border-color:#fcd34d;background:#fffbeb}.card.warn .num{color:var(--warn)}
.bulkbar{display:flex;align-items:center;gap:.5rem;margin-bottom:.6rem;flex-wrap:wrap}
.bulkbar .btn{padding:.35rem .8rem}
.btn.danger-btn{color:var(--down);border-color:#fca5a5}
.alert-card{display:flex;flex-direction:column;align-items:center;justify-content:center}
.alert-card .num{color:var(--brand)}
.alert-card button[disabled]{opacity:.5;cursor:not-allowed}

img.thumb{width:90px;height:56px;object-fit:cover;object-position:top;border:1px solid var(--line);border-radius:4px;display:block;background:#f3f4f6;cursor:zoom-in}
img.thumb:hover{outline:2px solid var(--brand)}
img.shotfull{max-width:100%;border:1px solid var(--line);border-radius:8px;margin:.3rem 0 1rem}

/* hover preview — fixed position, follows cursor, clamped by JS so it never clips */
.hover-preview{display:none;position:fixed;z-index:900;max-width:460px;max-height:72vh;width:auto;height:auto;
  object-fit:contain;border:1px solid var(--line);border-radius:8px;background:#fff;
  box-shadow:0 14px 44px rgba(0,0,0,.35);pointer-events:none}
.hover-preview.show{display:block}
@media(max-width:600px){.hover-preview{display:none!important}}  /* mobile: tap to use the modal */

/* full-image lightbox modal — scales to fit any image, no cropping, mobile-friendly */
.lightbox{display:none;position:fixed;inset:0;z-index:1000;background:rgba(15,23,42,.85);
  align-items:center;justify-content:center;padding:24px}
.lightbox.open{display:flex}
.lightbox img{max-width:94vw;max-height:90vh;width:auto;height:auto;object-fit:contain;
  border-radius:6px;box-shadow:0 12px 50px rgba(0,0,0,.6);background:#fff}
.lb-close{position:fixed;top:10px;right:20px;color:#fff;font-size:42px;line-height:1;
  cursor:pointer;z-index:1001;font-weight:300;user-select:none}
.lb-close:hover{color:#cbd5e1}
@media(max-width:600px){.lightbox{padding:10px}.lightbox img{max-width:98vw;max-height:88vh}}

.toolbar{display:flex;justify-content:space-between;align-items:center;margin:1rem 0}

table.grid{width:100%;border-collapse:collapse;background:var(--panel);border:1px solid var(--line);border-radius:10px}
.grid th,.grid td{padding:.55rem .7rem;text-align:left;border-bottom:1px solid var(--line);vertical-align:top}
.grid th{background:#eef1f5;font-size:12px;text-transform:uppercase;letter-spacing:.03em;color:var(--muted)}
/* freeze the header row while scrolling the long list */
.grid thead th{position:sticky;top:52px;z-index:3;box-shadow:inset 0 -1px 0 var(--line),0 1px 4px rgba(0,0,0,.06)}
.grid tr:last-child td{border-bottom:none}
.grid tr.dim{opacity:.5}
.grid .url{max-width:320px;overflow:hidden;text-overflow:ellipsis;word-break:break-all}
.actions a,.actions .link{margin-right:.5rem}

.pill{display:inline-block;padding:.1rem .5rem;border-radius:999px;font-size:12px;font-weight:600}
.pill-up{background:var(--upbg);color:var(--up)}
.pill-down{background:var(--downbg);color:var(--down)}
.pill-warn{background:var(--warnbg);color:var(--warn)}
.pill-gray{background:var(--graybg);color:var(--gray)}

.btn,.btn-primary,button.link{cursor:pointer;font:inherit}
.btn-primary{background:var(--brand);color:#fff;border:none;padding:.5rem 1rem;border-radius:8px}
.btn{background:#fff;border:1px solid var(--line);padding:.5rem 1rem;border-radius:8px;color:var(--ink)}
button.link{background:none;border:none;color:var(--brand);padding:0;text-decoration:underline}
button.link.danger{color:var(--down)}

.split{display:flex;gap:1.2rem;align-items:flex-start}
.panel{background:var(--panel);border:1px solid var(--line);border-radius:10px;padding:1.2rem}
.split .panel{flex:0 0 320px}
.split .grow{flex:1}

.form{display:flex;flex-direction:column;gap:.4rem}
.form label{font-size:13px;font-weight:600;margin-top:.4rem}
.form input,.form select,.form textarea{padding:.5rem;border:1px solid var(--line);border-radius:8px;font:inherit;width:100%}
.form .check{display:flex;align-items:center;gap:.4rem;font-weight:400}
.form .check input{width:auto}
.row{display:flex;gap:.6rem;margin-top:.8rem}
.row2{display:flex;gap:.8rem}
.row2>div{flex:1}

.login{max-width:320px;margin-top:8vh;text-align:center}
.login form{display:flex;flex-direction:column;gap:.6rem;margin-top:1rem}
.login input{padding:.6rem;border:1px solid var(--line);border-radius:8px}

pre.code{background:#0f172a;color:#e2e8f0;padding:.9rem;border-radius:8px;overflow-x:auto;font:12px/1.5 Consolas,monospace;white-space:pre-wrap;word-break:break-all}

.spark{display:flex;align-items:flex-end;gap:2px;height:66px;padding:.5rem;background:#f9fafb;border-radius:8px;margin:.5rem 0}
.spark .bar{width:5px;border-radius:2px 2px 0 0}
.spark .okbar{background:#86efac}
.spark .badbar{background:#fca5a5}

@media(max-width:780px){
  .cards{grid-template-columns:repeat(2,1fr)}
  .split{flex-direction:column}.split .panel{flex:1;width:100%}
}