:root{--bg:#f4f6fb;--card:#fff;--text:#1d2433;--muted:#6b7488;--primary:#4f46e5;--primary-d:#4338ca;--line:#e6e9f2;--ok:#16a34a;--bad:#dc2626;--radius:14px}
*{box-sizing:border-box}
body{margin:0;font-family:'Cairo',system-ui,sans-serif;background:var(--bg);color:var(--text);line-height:1.7}
a{color:var(--primary);text-decoration:none}a:hover{text-decoration:underline}
h1{font-size:1.6rem;margin:.2rem 0 1rem}h2{margin:.2rem 0 .6rem}h3{margin:1.2rem 0 .6rem}h4{margin:.2rem 0}
.muted{color:var(--muted)}.center{text-align:center}.pre{white-space:pre-wrap}
.row{display:flex;align-items:center;gap:.6rem;flex-wrap:wrap}.between{justify-content:space-between}.gap{gap:.6rem}
.wrap{max-width:1100px;margin:0 auto;padding:0 16px}.page{padding-top:20px;padding-bottom:50px}
.card{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:20px;box-shadow:0 1px 3px rgba(20,30,60,.04);margin-bottom:16px}
.narrow{max-width:620px}
hr{border:0;border-top:1px solid var(--line);margin:8px 0}

/* أزرار */
.btn,button.btn{display:inline-block;background:var(--primary);color:#fff;border:1px solid var(--primary);border-radius:10px;padding:9px 18px;font:inherit;font-weight:600;cursor:pointer;text-decoration:none!important;transition:.15s}
.btn:hover{background:var(--primary-d)}
.btn.ghost{background:transparent;color:var(--primary)}.btn.ghost:hover{background:#eef0ff}
.btn.danger{background:#fff;color:var(--bad);border-color:#f3c0c0}.btn.danger:hover{background:#fdecec}
.btn.sm{padding:4px 12px;font-size:.88rem}.btn.full{width:100%;text-align:center}
button.link{background:none;border:0;color:var(--muted);font:inherit;cursor:pointer}button.link:hover{color:var(--bad)}

/* نماذج */
.form{display:flex;flex-direction:column;gap:14px}
label{display:flex;flex-direction:column;gap:5px;font-weight:600;font-size:.94rem}
label.check{flex-direction:row;align-items:center;gap:8px;font-weight:400}
input:not([type=checkbox]),textarea,select{font:inherit;padding:10px 12px;border:1px solid var(--line);border-radius:10px;background:#fff;width:100%}
input:focus,textarea:focus,select:focus{outline:2px solid #c7c9ff;border-color:var(--primary)}
input:disabled,select:disabled{background:#f1f3f8}
fieldset{border:1px solid var(--line);border-radius:10px;padding:10px 14px}legend{font-weight:600;padding:0 6px}
.search{display:flex;gap:8px;margin-bottom:14px;max-width:460px}

.flash{padding:10px 14px;border-radius:10px;margin-bottom:14px;font-weight:600}
.flash.ok{background:#e8f8ee;color:#12703a}.flash.err{background:#fdecec;color:#a11d1d}

/* جداول */
table{width:100%;border-collapse:collapse}th,td{padding:10px 8px;text-align:right;border-bottom:1px solid var(--line);vertical-align:middle}
th{color:var(--muted);font-size:.85rem;font-weight:600}tr:last-child td{border-bottom:0}
td.acts{white-space:nowrap}td.acts form,td.acts a{display:inline-block;margin-inline-start:4px}td.w{width:70px}
.tag{display:inline-block;padding:1px 10px;border-radius:99px;font-size:.78rem;background:#eef0f5;color:var(--muted);font-weight:600}
.tag.ok{background:#e8f8ee;color:#12703a}.tag.bad{background:#fdecec;color:#a11d1d}.tag.blue{background:#e8edff;color:var(--primary)}

/* دخول */
.auth{min-height:100vh;display:flex;flex-direction:column;align-items:center;justify-content:center;padding:20px;background:linear-gradient(135deg,#eef0ff,#f9f1ff)}
.auth-card{width:100%;max-width:420px;padding:28px}.auth-card h1{text-align:center;color:var(--primary)}
.auth .flash{width:100%;max-width:420px}

/* الطالب */
.top{background:#fff;border-bottom:1px solid var(--line);position:sticky;top:0;z-index:5}
.top .wrap{min-height:60px}.top nav{gap:18px}.top nav a{color:var(--text);font-weight:600}.top nav a.active{color:var(--primary)}
.brand{font-weight:700;font-size:1.2rem;color:var(--primary)}
.hero{background:linear-gradient(135deg,#4f46e5,#7c3aed);color:#fff;border-radius:var(--radius);padding:26px;margin-bottom:10px}.hero h2{margin:0}.hero p{margin:.3rem 0 0;opacity:.9}
.grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(250px,1fr));gap:16px}
.course{background:#fff;border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;color:inherit;display:block;transition:.15s}
a.course:hover{transform:translateY(-3px);box-shadow:0 8px 20px rgba(30,40,90,.1);text-decoration:none}
.thumb{width:100%;aspect-ratio:16/9;object-fit:cover;display:block;background:#e9ebff}
td .thumb{width:64px;border-radius:8px}
.thumb.ph{display:flex;align-items:center;justify-content:center;font-size:2rem;font-weight:700;color:var(--primary);background:linear-gradient(135deg,#e9ebff,#f3e8ff)}
.cbody{padding:14px}.clamp{display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;margin:.2rem 0 .6rem}
.bar{height:8px;background:#e8eaf3;border-radius:99px;overflow:hidden;margin:8px 0 4px}.bar i{display:block;height:100%;background:linear-gradient(90deg,#4f46e5,#22c55e);border-radius:99px}
.empty{background:#fff;border:2px dashed var(--line);border-radius:var(--radius);padding:30px;text-align:center;color:var(--muted)}
.lessons{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:8px}
.lessons a{display:flex;align-items:center;gap:10px;background:#fff;border:1px solid var(--line);border-radius:12px;padding:12px 14px;color:var(--text);font-weight:600}
.lessons a:hover{border-color:var(--primary);text-decoration:none}
.lessons.small a{padding:8px 10px;font-size:.92rem;font-weight:400}
.lessons a.current{border-color:var(--primary);background:#f1f2ff}
.tick{width:22px;height:22px;border-radius:50%;border:2px solid var(--line);display:inline-flex;align-items:center;justify-content:center;font-size:.8rem;color:#fff;flex:none}
.done .tick{background:var(--ok);border-color:var(--ok)}
.lesson-layout{display:grid;grid-template-columns:1fr 300px;gap:16px;align-items:start}
.video{position:relative;aspect-ratio:16/9;margin:12px 0;border-radius:12px;overflow:hidden;background:#000}.video iframe{position:absolute;inset:0;width:100%;height:100%;border:0}
.player{width:100%;border-radius:12px;margin:12px 0;background:#000}
.content{margin:14px 0 20px;font-size:1.05rem}

/* الأدمن */
.admin{display:grid;grid-template-columns:240px 1fr;min-height:100vh}
.side{background:#1c2033;color:#cfd4ea;padding:20px 14px;display:flex;flex-direction:column;gap:20px;position:sticky;top:0;height:100vh}
.side .brand{color:#fff;padding:0 8px}.side nav{display:flex;flex-direction:column;gap:4px;flex:1}
.side nav a{color:#cfd4ea;padding:10px 12px;border-radius:10px;font-weight:600;display:flex;gap:10px}
.side nav a:hover{background:#2a2f4a;text-decoration:none}.side nav a.active{background:var(--primary);color:#fff}
.side .btn.ghost{color:#cfd4ea;border-color:#3a4062}.side .btn.ghost:hover{background:#2a2f4a}
.main{padding:26px;min-width:0}
.stats{display:grid;grid-template-columns:repeat(auto-fit,minmax(150px,1fr));gap:14px;margin-bottom:18px}
.stat{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:18px;display:flex;flex-direction:column}
.stat b{font-size:2rem;color:var(--primary);line-height:1.1}.stat span{color:var(--muted)}
.cols{display:grid;grid-template-columns:1fr 1fr;gap:16px;align-items:start}

@media(max-width:860px){
  .admin{grid-template-columns:1fr}.side{position:static;height:auto;flex-direction:column}.side nav{flex-direction:row;flex-wrap:wrap}
  .cols,.lesson-layout{grid-template-columns:1fr}.main{padding:16px}
  table{display:block;overflow-x:auto}
}

/* جوجل + الكود */
.gbtn{display:flex;align-items:center;justify-content:center;gap:10px;background:#fff!important;color:#1d2433!important;border:1px solid #d5d9e6!important;padding:12px 18px;margin:14px 0}
.gbtn:hover{background:#f6f7fb!important}
.small-t{font-size:.88rem}
.code-badge{display:inline-block;background:rgba(255,255,255,.22);color:#fff;border-radius:8px;padding:2px 12px;font-weight:700;letter-spacing:.12em;font-family:ui-monospace,Menlo,monospace}
.code-badge.dark{background:#eef0ff;color:var(--primary)}
.codeinput{text-align:center;font-size:1.5rem!important;font-weight:700;letter-spacing:.3em;text-transform:uppercase;font-family:ui-monospace,Menlo,monospace}
.codeinput.sm{max-width:90px}
.note{background:#f4f6fb;border-radius:10px;padding:10px 14px}
code{background:#eef0f5;padding:2px 8px;border-radius:6px;word-break:break-all}
button.link.full{width:100%;margin-top:6px}

/* صفحات قانونية */
.legal{max-width:760px;width:100%;margin:20px auto}
.auth:has(.legal){justify-content:flex-start}
.legal h3{margin:1.2rem 0 .3rem}.legal p{margin:.2rem 0}