:root{
  --ink:#1b2a49; --ink-2:#34466d; --paper:#f4f6fa; --white:#fff;
  --line:#d6dce8; --grid:#e3e8f1; --pencil:#f2b705; --pencil-d:#7a5a00;
  --ok:#17684f; --ok-bg:#e3f4ec; --err:#a4262c; --err-bg:#fde8e8; --warn-bg:#fff4d6;
  --r:10px;
}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{margin:0;font-family:"IBM Plex Sans Arabic","Segoe UI",Tahoma,Arial,sans-serif;color:var(--ink);background:var(--paper);line-height:1.7;font-size:16px}
a{color:var(--ink-2)}
h1,h2{line-height:1.3;margin:0}
.wrap{max-width:1040px;margin:0 auto;padding:20px 16px 48px}

/* ---- الصفحة العامة: ورقة جدول ---- */
.is-public{
  background-color:var(--paper);
  background-image:
    linear-gradient(var(--grid) 1px,transparent 1px),
    linear-gradient(90deg,var(--grid) 1px,transparent 1px);
  background-size:56px 56px; background-position:center top;
  min-height:100vh;
}
.stage{min-height:calc(100vh - 70px);display:flex;align-items:center;justify-content:center}
.sheet{width:100%;max-width:420px;background:var(--white);border:2px solid var(--ink);border-radius:var(--r);padding:28px 24px;box-shadow:8px 8px 0 var(--ink)}
.sheet h1{font-size:2rem;font-weight:700;margin-bottom:6px}
.school{margin:0 0 4px;color:var(--ink-2);font-size:.95rem;font-weight:500;border-inline-start:4px solid var(--pencil);padding-inline-start:10px}
.lead{margin:8px 0 18px;color:var(--ink-2)}
.who{display:grid;gap:4px;margin:16px 0 20px;padding:14px;background:var(--paper);border-radius:var(--r);border:1px solid var(--line)}
.who strong{font-size:1.25rem}
.who-label{font-size:.85rem;color:var(--ink-2)}
.hint{font-size:.9rem;color:var(--ink-2);margin:10px 0 0}
.again{margin-top:10px}

/* ---- نماذج ---- */
label{display:block;font-weight:600;margin:14px 0 6px;font-size:.95rem}
input[type=text],input[type=password],input[type=search],select,textarea{
  width:100%;padding:12px 14px;font:inherit;color:var(--ink);background:var(--white);
  border:1.5px solid var(--line);border-radius:8px;min-height:48px}
.code-input{font-size:1.3rem;letter-spacing:.08em;text-align:center}
input:focus,select:focus,textarea:focus,.btn:focus-visible,summary:focus-visible,a:focus-visible{outline:3px solid var(--pencil);outline-offset:2px;border-color:var(--ink)}
.check{display:flex;align-items:center;gap:8px;font-weight:500;margin:0}
.check input{width:20px;height:20px}

/* ---- أزرار ---- */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;font:inherit;font-weight:600;
  padding:12px 20px;min-height:48px;border-radius:8px;border:2px solid var(--ink);cursor:pointer;text-decoration:none;
  background:var(--white);color:var(--ink);transition:transform .08s}
.btn:active{transform:translateY(1px)}
.btn[disabled]{opacity:.6;cursor:wait}
.btn.primary{background:var(--ink);color:#fff}
.btn.primary:hover{background:var(--ink-2)}
.btn.ghost:hover{background:var(--paper)}
.btn.danger{border-color:var(--err);color:var(--err)}
.btn.danger:hover{background:var(--err-bg)}
.btn.sm{min-height:40px;padding:6px 14px;font-size:.92rem}
.btn.block{display:flex;width:100%;margin-top:16px}

/* ---- تنبيهات ---- */
.alert{padding:12px 14px;border-radius:8px;margin:14px 0;border:1px solid;font-weight:500}
.alert.ok{background:var(--ok-bg);border-color:var(--ok);color:var(--ok)}
.alert.err{background:var(--err-bg);border-color:var(--err);color:var(--err)}
.alert.warn{background:var(--warn-bg);border-color:var(--pencil);color:var(--pencil-d)}
.empty{padding:28px;text-align:center;color:var(--ink-2);background:var(--white);border:1.5px dashed var(--line);border-radius:var(--r);margin:16px 0}
.chip{display:inline-block;padding:2px 12px;border-radius:99px;background:var(--pencil);color:var(--ink);font-weight:600;font-size:.9rem;justify-self:start}

/* ---- لوحة التحكم ---- */
.is-admin{background:var(--paper)}
.topbar{background:var(--ink);color:#fff;position:sticky;top:0;z-index:5}
.topbar-in{max-width:1040px;margin:0 auto;padding:10px 16px;display:flex;align-items:center;gap:14px;flex-wrap:wrap}
.brand{margin-inline-end:auto}
.topbar nav{display:flex;gap:4px;flex-wrap:wrap}
.topbar nav a{color:#dfe5f2;text-decoration:none;padding:8px 12px;border-radius:8px;font-weight:500}
.topbar nav a.on{background:var(--pencil);color:var(--ink);font-weight:700}
.topbar .btn.ghost{background:transparent;color:#fff;border-color:#8c9abb}
.topbar .btn.ghost:hover{background:var(--ink-2)}
.page-title{font-size:1.6rem;margin:8px 0 16px}
.panel{background:var(--white);border:1.5px solid var(--line);border-radius:var(--r);padding:18px;margin:0 0 16px}
.panel.narrow{max-width:460px}
.panel h2{font-size:1.1rem;margin-bottom:6px}
details.panel summary{cursor:pointer;font-weight:700}
.row-form{display:flex;flex-wrap:wrap;gap:12px;align-items:flex-end}
.row-form label{margin-top:0}
.row-form .grow{flex:1 1 180px}.row-form .grow2{flex:2 1 240px}
.grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(290px,1fr));gap:16px}
.class-card header{display:flex;justify-content:space-between;align-items:center;gap:8px;margin-bottom:6px}
.status{margin:0 0 12px;font-weight:600;font-size:.92rem}
.status.ok{color:var(--ok)}.status.no{color:var(--err)}
.upload{display:grid;gap:0}
.file{display:flex;align-items:center;gap:10px;margin:0;cursor:pointer;flex-wrap:wrap}
.file input{position:absolute;opacity:0;width:1px;height:1px}
.file-btn{padding:9px 14px;border:1.5px solid var(--ink);border-radius:8px;font-weight:600;font-size:.92rem}
.file input:focus-visible + .file-btn{outline:3px solid var(--pencil);outline-offset:2px}
.file-name{font-size:.88rem;color:var(--ink-2);font-weight:400;word-break:break-all}
.actions{display:flex;flex-wrap:wrap;gap:8px;margin-top:14px;padding-top:14px;border-top:1px solid var(--line)}
.actions form,.acts form{margin:0}

/* ---- الجداول ---- */
.table-wrap{overflow-x:auto}
table{width:100%;border-collapse:collapse}
th,td{padding:10px 12px;text-align:start;border-bottom:1px solid var(--line)}
th{font-size:.88rem;color:var(--ink-2);background:var(--paper)}
.num{font-variant-numeric:tabular-nums;text-align:end}
.acts{display:flex;gap:8px;justify-content:flex-end;flex-wrap:wrap}
.pager{display:flex;justify-content:center;align-items:center;gap:14px;margin-top:16px}

@media (max-width:640px){
  .sheet{padding:22px 18px;box-shadow:5px 5px 0 var(--ink)}
  .sheet h1{font-size:1.7rem}
  table.responsive thead{display:none}
  table.responsive tr{display:block;border:1.5px solid var(--line);border-radius:var(--r);margin-bottom:12px;padding:6px 12px}
  table.responsive td{display:flex;justify-content:space-between;gap:12px;border:0;padding:6px 0}
  table.responsive td[data-label]::before{content:attr(data-label);color:var(--ink-2);font-weight:600;font-size:.88rem}
  table.responsive td.num{text-align:start}
  table.responsive td.acts{justify-content:flex-start;padding-top:10px;border-top:1px solid var(--line);margin-top:4px}
  .row-form .btn{width:100%}
  .brand{width:100%}
}
@media (prefers-reduced-motion:reduce){*{transition:none!important}}

textarea{display:block;width:100%;padding:12px 14px;font:inherit;line-height:1.8;color:var(--ink);background:var(--white);border:1.5px solid var(--line);border-radius:8px;resize:vertical;min-height:160px}
.code-sample{background:var(--paper);border:1px solid var(--line);border-radius:6px;padding:1px 8px;font-weight:600}
.count{font-weight:400;color:var(--ink-2);font-size:.88rem}