/* منصة تطوير وأداء – الثانوية العاشرة بعد المئة | نسخة HTML/CSS/JS */
:root{
  --radius:1rem;
  --background:#f4f6f9; --foreground:#161c2b; --card:#ffffff; --muted:#f1f3f7;
  --muted-foreground:#697388; --border:#e3e7ee; --primary:#16203a; --primary-fg:#f8fafc;
  --teal:#0f766e; --royal:#3b5bdb; --violet:#7c3aed; --amber:#d97706;
  --success:#15803d; --warning:#c98a04; --danger:#dc2626; --info:#3b5bdb;
  --sidebar:#16203a; --sidebar-fg:#e6eaf3; --sidebar-accent:#22304f;
  --shadow-soft:0 1px 2px rgba(16,24,40,.06), 0 8px 24px -12px rgba(16,24,40,.18);
  --shadow-lift:0 2px 4px rgba(16,24,40,.06), 0 18px 42px -18px rgba(16,24,40,.28);
}
.dark{
  --background:#0f1626; --foreground:#f2f5fa; --card:#172034; --muted:#212c45;
  --muted-foreground:#a3adc2; --border:rgba(255,255,255,.12); --primary:#2dd4bf; --primary-fg:#0f1626;
  --teal:#2dd4bf; --royal:#7c93f5; --violet:#b085f5; --amber:#f0a952;
  --success:#4ade80; --warning:#facc15; --danger:#f87171; --info:#7c93f5;
  --sidebar:#111a2c; --sidebar-fg:#e6eaf3; --sidebar-accent:#1e2a44;
}
*{box-sizing:border-box;border-color:var(--border)}
html,body{margin:0;padding:0}
body{
  background:var(--background);color:var(--foreground);
  font-family:"IBM Plex Sans Arabic","Tajawal",system-ui,sans-serif;
  -webkit-font-smoothing:antialiased;
}
a{color:inherit;text-decoration:none}
button{font:inherit}

/* Layout */
.sidebar{position:fixed;inset-block:0;inset-inline-end:0;width:18rem;background:var(--sidebar);color:var(--sidebar-fg);
  border-inline-start:1px solid rgba(255,255,255,.08);z-index:40;overflow-y:auto;transition:transform .3s}
.sidebar-brand{display:flex;align-items:center;gap:.75rem;height:5rem;padding:0 1.5rem}
.brand-badge{display:grid;place-items:center;width:2.75rem;height:2.75rem;border-radius:.85rem;background:var(--teal);color:#fff;font-weight:700}
.brand-title{font-size:.875rem;font-weight:600;margin:0}
.brand-sub{font-size:.75rem;opacity:.7;margin:.15rem 0 0}
.nav{display:flex;flex-direction:column;gap:.25rem;padding:0 .75rem 2rem}
.nav a{display:flex;align-items:center;gap:.6rem;padding:.65rem .75rem;border-radius:.8rem;font-size:.9rem;color:rgba(230,234,243,.82)}
.nav a:hover{background:var(--sidebar-accent);color:#fff}
.nav a.active{background:var(--teal);color:#fff;font-weight:600}
.side-note{margin:0 .75rem 2rem;padding:1rem;border-radius:.85rem;background:var(--sidebar-accent);font-size:.75rem;opacity:.9}
.shell{margin-inline-end:18rem}
.topbar{position:sticky;top:0;z-index:20;display:flex;align-items:center;gap:.75rem;height:5rem;padding:0 2rem;
  background:color-mix(in srgb,var(--background) 88%,transparent);backdrop-filter:blur(8px);border-bottom:1px solid var(--border)}
.search-box{flex:0 0 auto;width:20rem;max-width:45vw;position:relative}
.topbar-actions{margin-inline-start:auto;display:flex;align-items:center;gap:.5rem}
.user-chip{display:flex;align-items:center;gap:.5rem;border:1px solid var(--border);background:var(--card);border-radius:.8rem;padding:.35rem .7rem}
.avatar{display:grid;place-items:center;width:2rem;height:2rem;border-radius:.6rem;background:var(--primary);color:var(--primary-fg);font-size:.7rem;font-weight:700}
main{padding:1.5rem 2rem 6rem}
.page-head h1{font-size:1.75rem;margin:0;letter-spacing:-.01em}
.page-head p{margin:.35rem 0 0;color:var(--muted-foreground);font-size:.875rem}
.menu-btn{display:none;background:none;border:0;color:inherit;cursor:pointer;font-size:1.4rem}
@media(max-width:1024px){
  .shell{margin-inline-end:0}
  .sidebar{transform:translateX(-100%)}
  html[dir=rtl] .sidebar{transform:translateX(100%)}
  .sidebar.open{transform:translateX(0)!important}
  .menu-btn{display:block}
  .search-box{display:none}
  main,.topbar{padding-inline:1rem}
}
.backdrop{position:fixed;inset:0;background:rgba(15,22,38,.45);z-index:30}

/* Building blocks */
.card{background:var(--card);border:1px solid var(--border);border-radius:1.25rem;box-shadow:var(--shadow-soft);padding:1.25rem}
.card h2{font-size:1rem;margin:0 0 1rem}
.card-head{display:flex;align-items:center;justify-content:space-between;gap:.75rem;margin-bottom:1rem}
.card-head h2{margin:0}
.grid{display:grid;gap:1rem}
.g2{grid-template-columns:repeat(2,minmax(0,1fr))}
.g3{grid-template-columns:repeat(3,minmax(0,1fr))}
.g4{grid-template-columns:repeat(4,minmax(0,1fr))}
.g6{grid-template-columns:repeat(6,minmax(0,1fr))}
@media(max-width:1200px){.g6{grid-template-columns:repeat(3,minmax(0,1fr))}.g4{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media(max-width:820px){.g2,.g3,.g4,.g6{grid-template-columns:1fr}}
.mt{margin-top:1rem}.mt2{margin-top:1.5rem}
.muted{color:var(--muted-foreground)}
.small{font-size:.8rem}
.kpi{position:relative;overflow:hidden}
.kpi .bar{position:absolute;inset-block:0;inset-inline-end:0;width:.35rem}
.kpi .label{font-size:.85rem;color:var(--muted-foreground);margin:0}
.kpi .value{font-size:1.9rem;font-weight:700;margin:.4rem 0 0;letter-spacing:-.02em}
.kpi .hint{font-size:.75rem;color:var(--muted-foreground);margin:.25rem 0 0}
.pill{display:inline-flex;align-items:center;border-radius:999px;border:1px solid;padding:.15rem .6rem;font-size:.75rem;font-weight:500;white-space:nowrap}
.progress{height:.6rem;width:100%;background:var(--muted);border-radius:999px;overflow:hidden}
.progress > span{display:block;height:100%;border-radius:999px;transition:width .3s}
table{width:100%;border-collapse:collapse;font-size:.85rem}
th,td{text-align:start;padding:.6rem .5rem;border-bottom:1px solid var(--border);vertical-align:middle}
th{color:var(--muted-foreground);font-weight:600;font-size:.78rem;white-space:nowrap}
.table-wrap{overflow-x:auto}
input,select,textarea{width:100%;background:var(--card);color:var(--foreground);border:1px solid var(--border);
  border-radius:.65rem;padding:.5rem .7rem;font-size:.85rem;font-family:inherit}
input:focus,select:focus,textarea:focus{outline:2px solid color-mix(in srgb,var(--teal) 45%,transparent);outline-offset:1px}
label.field{display:block;font-size:.78rem;color:var(--muted-foreground);margin-bottom:.6rem}
label.field span{display:block;margin-bottom:.25rem}
.btn{display:inline-flex;align-items:center;gap:.4rem;border:1px solid var(--border);background:var(--card);color:var(--foreground);
  border-radius:.7rem;padding:.5rem .9rem;font-size:.85rem;cursor:pointer;transition:.15s}
.btn:hover{background:var(--muted)}
.btn.primary{background:var(--primary);color:var(--primary-fg);border-color:transparent}
.btn.primary:hover{opacity:.9}
.btn.danger{background:var(--danger);color:#fff;border-color:transparent}
.btn.sm{padding:.3rem .6rem;font-size:.78rem}
.row{display:flex;flex-wrap:wrap;gap:.6rem;align-items:center}
.between{display:flex;justify-content:space-between;align-items:center;gap:.75rem}
.chart{position:relative;height:280px}
.chart.sm{height:220px}
.list{display:flex;flex-direction:column;gap:.6rem}
.item{border:1px solid var(--border);border-radius:.85rem;padding:.75rem;background:var(--card)}
.tabs{display:flex;gap:.35rem;background:var(--muted);padding:.25rem;border-radius:.8rem;width:fit-content}
.tabs button{border:0;background:transparent;padding:.4rem .9rem;border-radius:.6rem;font-size:.83rem;cursor:pointer;color:var(--muted-foreground)}
.tabs button.active{background:var(--card);color:var(--foreground);font-weight:600;box-shadow:var(--shadow-soft)}
dialog{border:0;padding:0;border-radius:1.1rem;background:var(--card);color:var(--foreground);box-shadow:var(--shadow-lift);width:min(34rem,92vw)}
dialog::backdrop{background:rgba(15,22,38,.5)}
.dialog-body{padding:1.25rem}
.dialog-body h3{margin:0 0 1rem;font-size:1rem}
.toast{position:fixed;inset-block-end:1.5rem;inset-inline-end:1.5rem;background:var(--primary);color:var(--primary-fg);
  padding:.75rem 1.1rem;border-radius:.8rem;box-shadow:var(--shadow-lift);z-index:60;font-size:.85rem}
.fab{position:fixed;inset-block-end:1.5rem;inset-inline-start:1.5rem;z-index:30;width:3.4rem;height:3.4rem;border-radius:1.1rem;
  background:var(--primary);color:var(--primary-fg);border:0;font-size:1.5rem;cursor:pointer;box-shadow:var(--shadow-lift)}
.kanban{display:grid;grid-template-columns:repeat(5,minmax(0,1fr));gap:.75rem}
@media(max-width:1100px){.kanban{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media(max-width:640px){.kanban{grid-template-columns:1fr}}
.kanban .col{background:var(--muted);border-radius:1rem;padding:.75rem;min-height:8rem}
.kanban .col h3{font-size:.82rem;margin:0 0 .6rem;display:flex;justify-content:space-between}
.flow{display:flex;flex-wrap:wrap;gap:.5rem;align-items:center}
.flow .step{background:var(--card);border:1px solid var(--border);border-radius:.8rem;padding:.5rem .8rem;font-size:.8rem}
.flow .arrow{color:var(--muted-foreground)}
.gauge{display:flex;flex-direction:column;align-items:center;gap:.5rem}
@media print{.sidebar,.topbar,.fab,.no-print{display:none!important}.shell{margin:0}main{padding:0}}