:root{
  --pink:#d6336c; --pink-d:#b0245a; --pink-l:#fbe4ec; --pink-xl:#fdf4f6;
  --cream:#fffaf5; --ink:#3a2a33; --muted:#7a6470; --line:#f1dfe5;
  --white:#fff; --ok:#2f9e6b; --ok-l:#e6f6ee; --err:#c92a2a; --err-l:#fde8e8;
  --r:18px; --sh:0 6px 24px rgba(176,36,90,.08);
}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{margin:0;font-family:'Cairo',Tahoma,sans-serif;background:var(--cream);color:var(--ink);font-size:16px;line-height:1.8;min-height:100vh;display:flex;flex-direction:column}
a{color:var(--pink)}
img{max-width:100%}
.wrap{width:100%;max-width:1100px;margin:0 auto;padding:0 16px}
.main{flex:1;padding-top:24px;padding-bottom:48px}

/* top bar */
.top{background:var(--white);border-bottom:1px solid var(--line);position:sticky;top:0;z-index:20}
.top-in{display:flex;align-items:center;justify-content:space-between;gap:12px;min-height:64px;flex-wrap:wrap;padding-top:6px;padding-bottom:6px}
.brand{display:flex;align-items:center;gap:10px;text-decoration:none;color:var(--ink);font-weight:800;font-size:17px}
.brand img{border-radius:50%;object-fit:cover;border:2px solid var(--pink-l)}
.brand small{display:inline-block;background:var(--pink-l);color:var(--pink-d);font-size:12px;padding:0 10px;border-radius:20px;margin-inline-start:4px;font-weight:700}
.nav{display:flex;gap:4px;flex-wrap:wrap}
.nav a{text-decoration:none;color:var(--ink);font-weight:600;font-size:15px;padding:6px 12px;border-radius:20px}
.nav a:hover{background:var(--pink-xl)}
.nav a.ghost{color:var(--pink)}
.nav a.out{color:var(--muted)}

/* text */
h1{font-size:26px;margin:0 0 6px;font-weight:800;line-height:1.5}
h2{font-size:20px;margin:0 0 12px;font-weight:800}
h3{font-size:17px;margin:0 0 6px;font-weight:700}
.sub{color:var(--muted);margin:0 0 22px}
.muted{color:var(--muted)}
.small{font-size:14px}

/* buttons */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:6px;background:var(--pink);color:#fff;border:0;border-radius:30px;padding:10px 22px;font:inherit;font-weight:700;font-size:15px;cursor:pointer;text-decoration:none;transition:background .15s,transform .1s;white-space:nowrap}
.btn:hover{background:var(--pink-d)}
.btn:active{transform:scale(.98)}
.btn.light{background:var(--pink-l);color:var(--pink-d)}
.btn.light:hover{background:#f7d3e0}
.btn.line{background:transparent;border:1.5px solid var(--line);color:var(--ink)}
.btn.line:hover{border-color:var(--pink);color:var(--pink)}
.btn.danger{background:transparent;color:var(--err);border:1.5px solid #f3c7c7}
.btn.danger:hover{background:var(--err-l)}
.btn.sm{padding:5px 14px;font-size:14px}
.btn.block{width:100%}
.btn[disabled]{opacity:.55;cursor:default}

/* cards */
.card{background:var(--white);border-radius:var(--r);box-shadow:var(--sh);padding:22px}
.grid{display:grid;gap:18px;grid-template-columns:repeat(auto-fill,minmax(280px,1fr))}
.c-card{background:var(--white);border-radius:var(--r);box-shadow:var(--sh);overflow:hidden;display:flex;flex-direction:column;text-decoration:none;color:inherit;transition:transform .15s,box-shadow .15s}
a.c-card:hover{transform:translateY(-3px);box-shadow:0 12px 30px rgba(176,36,90,.13)}
.c-img{aspect-ratio:16/10;background:var(--pink-l);display:flex;align-items:center;justify-content:center;font-size:54px;position:relative;overflow:hidden}
.c-img img{width:100%;height:100%;object-fit:cover;display:block}
.c-body{padding:16px 18px 18px;display:flex;flex-direction:column;gap:8px;flex:1}
.c-body p{margin:0;color:var(--muted);font-size:14px;line-height:1.7}
.c-foot{margin-top:auto;display:flex;align-items:center;justify-content:space-between;gap:10px;padding-top:6px}
.lock{position:absolute;inset:0;background:rgba(58,42,51,.45);display:flex;align-items:center;justify-content:center;color:#fff;font-size:15px;font-weight:700;gap:6px}
.bar{height:8px;background:var(--pink-xl);border-radius:8px;overflow:hidden}
.bar i{display:block;height:100%;background:var(--pink);border-radius:8px}
.pill{display:inline-block;font-size:13px;font-weight:700;padding:1px 12px;border-radius:20px;background:var(--pink-xl);color:var(--pink-d)}
.pill.ok{background:var(--ok-l);color:var(--ok)}
.pill.off{background:#eee;color:#777}

/* forms */
.form{display:flex;flex-direction:column;gap:14px}
label{font-weight:700;font-size:15px;display:block;margin-bottom:4px}
input[type=text],input[type=email],input[type=password],input[type=number],input[type=url],input[type=tel],textarea,select{width:100%;font:inherit;font-size:16px;padding:11px 14px;border:1.5px solid var(--line);border-radius:12px;background:#fff;color:var(--ink);outline:none;transition:border .15s}
input:focus,textarea:focus,select:focus{border-color:var(--pink)}
textarea{min-height:90px;resize:vertical}
.hint{font-size:13px;color:var(--muted);margin-top:4px}
.row{display:flex;gap:12px;flex-wrap:wrap}
.row>*{flex:1;min-width:180px}
.check{display:flex;align-items:center;gap:8px;font-weight:600;cursor:pointer}
.check input{width:18px;height:18px;accent-color:var(--pink)}
.ltr{direction:ltr;text-align:left}

/* auth */
.auth{max-width:420px;margin:30px auto}
.auth .logo{display:block;margin:0 auto 12px;width:86px;height:86px;border-radius:50%;object-fit:cover;border:3px solid var(--pink-l)}
.auth h1{text-align:center}
.auth .sub{text-align:center}

/* flash */
.flash{padding:12px 16px;border-radius:12px;margin-bottom:18px;font-weight:600;background:var(--ok-l);color:var(--ok)}
.flash.err{background:var(--err-l);color:var(--err)}

/* course player */
.player-wrap{display:grid;grid-template-columns:1fr 340px;gap:20px;align-items:start}
.player{background:#000;border-radius:var(--r);overflow:hidden;position:relative;aspect-ratio:16/9}
.player video{width:100%;height:100%;display:block;background:#000}
.wm{position:absolute;pointer-events:none;color:rgba(255,255,255,.28);font-size:13px;font-weight:700;direction:ltr;transition:top 1.5s,left 1.5s;user-select:none;text-shadow:0 0 2px rgba(0,0,0,.4);white-space:nowrap}
.no-video{position:absolute;inset:0;display:flex;align-items:center;justify-content:center;color:#fff;background:linear-gradient(135deg,#b0245a,#d6336c);font-size:18px;font-weight:700;text-align:center;padding:20px}
.lesson-info{margin-top:16px}
.lesson-actions{display:flex;gap:10px;flex-wrap:wrap;margin:14px 0}
.lessons{background:var(--white);border-radius:var(--r);box-shadow:var(--sh);overflow:hidden;position:sticky;top:80px;max-height:calc(100vh - 100px);display:flex;flex-direction:column}
.lessons-head{padding:16px 18px;border-bottom:1px solid var(--line)}
.lessons-list{overflow-y:auto}
.sec-title{padding:10px 18px;background:var(--pink-xl);font-weight:800;font-size:14px;color:var(--pink-d)}
.l-item{display:flex;align-items:center;gap:10px;padding:11px 18px;text-decoration:none;color:var(--ink);border-bottom:1px solid #faf0f3;font-size:15px;line-height:1.5}
.l-item:hover{background:var(--pink-xl)}
.l-item.on{background:var(--pink-l);font-weight:700}
.l-num{flex:0 0 28px;height:28px;border-radius:50%;background:var(--pink-xl);color:var(--pink-d);display:flex;align-items:center;justify-content:center;font-size:13px;font-weight:800}
.l-item.done .l-num{background:var(--ok);color:#fff}
.desc{white-space:pre-line}

/* tables */
.tbl{width:100%;border-collapse:collapse;font-size:15px}
.tbl th{text-align:right;color:var(--muted);font-weight:700;font-size:13px;padding:8px 10px;border-bottom:1.5px solid var(--line)}
.tbl td{padding:10px;border-bottom:1px solid #faf0f3;vertical-align:middle}
.tbl tr:last-child td{border-bottom:0}
.tbl-wrap{overflow-x:auto}

/* admin */
.stats{display:grid;gap:14px;grid-template-columns:repeat(auto-fill,minmax(170px,1fr));margin-bottom:22px}
.stat{background:var(--white);border-radius:var(--r);box-shadow:var(--sh);padding:18px}
.stat b{display:block;font-size:30px;color:var(--pink);line-height:1.3}
.stat span{color:var(--muted);font-size:14px;font-weight:600}
.head-row{display:flex;align-items:center;justify-content:space-between;gap:12px;flex-wrap:wrap;margin-bottom:18px}
.head-row h1{margin:0}
.stack{display:flex;flex-direction:column;gap:18px}
.admin-l{display:flex;align-items:center;gap:12px;padding:12px 14px;border:1.5px solid var(--line);border-radius:14px;background:#fff}
.admin-l .t{flex:1;min-width:0}
.admin-l .t b{display:block;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.drag{cursor:grab;color:#c9a9b6;font-size:20px;padding:0 4px;user-select:none}
.dragging{opacity:.4}
.up-box{border:2px dashed #e8c7d4;border-radius:16px;padding:22px;text-align:center;background:var(--pink-xl);cursor:pointer}
.up-box.has{border-style:solid;border-color:var(--ok);background:var(--ok-l)}
.up-prog{margin-top:12px;display:none}
.copy-box{background:var(--pink-xl);border-radius:14px;padding:14px 16px;white-space:pre-line;font-size:15px}
.mt{margin-top:18px}
.empty{text-align:center;padding:40px 20px;color:var(--muted)}
.empty b{display:block;font-size:40px}

.foot{text-align:center;color:var(--muted);font-size:14px;padding:22px 16px;border-top:1px solid var(--line);background:#fff}
.foot a{text-decoration:none}

@media (max-width:860px){
  .player-wrap{grid-template-columns:1fr}
  .lessons{position:static;max-height:none}
}
@media (max-width:600px){
  h1{font-size:22px}
  .main{padding-top:16px}
  .top-in{min-height:56px}
  .brand{font-size:15px}
  .nav{width:100%;justify-content:space-between;gap:0}
  .nav a{padding:4px 8px;font-size:14px}
  .card{padding:18px}
  .player{border-radius:12px;margin:0 -16px;border-radius:0}
  .hide-m{display:none}
}