:root{
  --primary:#2563eb; --primary-d:#1d4ed8; --primary-l:#e8f0fe;
  --green:#16a34a; --green-l:#dcfce7; --amber:#d97706; --amber-l:#fef3c7;
  --red:#dc2626; --red-l:#fee2e2; --cyan:#0891b2;
  --navy:#0e1b33; --navy2:#16284a;
  --bg:#eef1f6; --card:#ffffff; --ink:#0f1b2d; --muted:#64748b; --line:#e6eaf1;
  --shadow:0 1px 2px rgba(15,27,45,.04), 0 6px 20px rgba(15,27,45,.06);
  --shadow-lg:0 10px 40px rgba(15,27,45,.12);
  --r:14px; --r-sm:10px;
  --side:248px;
  --f:'Inter',-apple-system,BlinkMacSystemFont,'Segoe UI',Roboto,sans-serif;
}
*{margin:0;padding:0;box-sizing:border-box}
html,body{height:100%}
body{font-family:var(--f);background:var(--bg);color:var(--ink);font-size:14px;line-height:1.5;-webkit-font-smoothing:antialiased}
.boot{display:flex;height:100vh;align-items:center;justify-content:center;color:var(--muted)}
a{color:inherit;text-decoration:none}
button{font-family:inherit;cursor:pointer;border:none;background:none}
::selection{background:#c7dbff}

/* ---------- LOGIN ---------- */
.login-wrap{min-height:100vh;display:grid;grid-template-columns:1.1fr .9fr}
.login-hero{background:radial-gradient(900px 600px at 70% -10%,var(--navy2),var(--navy) 65%);color:#eaf2ff;padding:56px 60px;display:flex;flex-direction:column;justify-content:space-between;position:relative;overflow:hidden}
.login-hero .glow{position:absolute;width:420px;height:420px;border-radius:50%;background:radial-gradient(circle,rgba(37,99,235,.5),transparent 60%);top:-120px;right:-80px;filter:blur(10px)}
.login-hero .glow2{position:absolute;width:320px;height:320px;border-radius:50%;background:radial-gradient(circle,rgba(22,163,74,.35),transparent 60%);bottom:-80px;left:-60px}
.login-brand{display:flex;align-items:center;gap:12px;position:relative;z-index:1}
.login-hero h1{font-size:34px;font-weight:800;letter-spacing:-.5px;margin-bottom:14px;line-height:1.15;position:relative;z-index:1}
.login-hero p{color:#9fb6d8;max-width:440px;position:relative;z-index:1}
.hero-feats{display:flex;flex-wrap:wrap;gap:10px;margin-top:26px;position:relative;z-index:1}
.hero-feats span{background:rgba(255,255,255,.07);border:1px solid rgba(255,255,255,.14);padding:7px 13px;border-radius:999px;font-size:12.5px;color:#cfe0f7}
.login-form-side{display:flex;align-items:center;justify-content:center;padding:40px}
.login-card{width:100%;max-width:380px}
.login-card h2{font-size:22px;font-weight:700;margin-bottom:4px}
.login-card .sub{color:var(--muted);margin-bottom:26px}
.field{margin-bottom:16px}
.field label{display:block;font-size:12.5px;font-weight:600;color:#475569;margin-bottom:6px}
.field input{width:100%;padding:12px 14px;border:1.5px solid var(--line);border-radius:var(--r-sm);font-size:14.5px;transition:border .15s,box-shadow .15s;background:#fff}
.field input:focus{outline:none;border-color:var(--primary);box-shadow:0 0 0 4px var(--primary-l)}
.login-err{background:var(--red-l);color:#b91c1c;padding:10px 13px;border-radius:var(--r-sm);font-size:13px;margin-bottom:14px;display:none}
.login-hint{margin-top:18px;font-size:12.5px;color:var(--muted);background:#f6f8fc;border:1px dashed var(--line);border-radius:var(--r-sm);padding:12px}
.login-hint b{color:#334155}

/* ---------- LAYOUT ---------- */
.layout{display:grid;grid-template-columns:var(--side) 1fr;min-height:100vh}
.sidebar{background:linear-gradient(180deg,var(--navy),#0b1526);color:#c7d4ea;position:fixed;width:var(--side);top:0;bottom:0;left:0;display:flex;flex-direction:column;z-index:50}
.sb-brand{padding:20px 20px 14px;display:flex;align-items:center;gap:11px;border-bottom:1px solid rgba(255,255,255,.06)}
.logo{width:40px;height:40px;border-radius:11px;background:linear-gradient(135deg,var(--green),#0e9f6e);display:flex;align-items:center;justify-content:center;color:#fff;font-weight:800;font-size:16px;letter-spacing:-.5px;flex-shrink:0;box-shadow:0 4px 12px rgba(16,163,74,.35)}
.sb-brand .t{font-weight:800;font-size:16px;color:#fff;letter-spacing:-.3px}
.sb-brand .s{font-size:11px;color:#8ea4c6;margin-top:1px}
.sb-nav{flex:1;overflow-y:auto;padding:14px 12px}
.sb-group{font-size:10.5px;letter-spacing:1px;text-transform:uppercase;color:#5f779c;margin:14px 10px 7px;font-weight:700}
.nav-item{display:flex;align-items:center;gap:11px;padding:10px 12px;border-radius:10px;color:#b9c7e0;font-weight:500;font-size:13.5px;margin-bottom:2px;transition:background .13s,color .13s;cursor:pointer}
.nav-item:hover{background:rgba(255,255,255,.06);color:#fff}
.nav-item.active{background:linear-gradient(135deg,var(--primary),#3b82f6);color:#fff;box-shadow:0 5px 14px rgba(37,99,235,.4)}
.nav-item svg{width:18px;height:18px;flex-shrink:0;opacity:.95}
.nav-item .nb{margin-left:auto;background:rgba(255,255,255,.18);border-radius:999px;font-size:10.5px;padding:1px 7px;font-weight:700}
.sb-foot{padding:14px 18px;border-top:1px solid rgba(255,255,255,.06);font-size:11.5px;color:#8ea4c6}
.sb-foot b{color:#cfe0f7}

.main{grid-column:2;display:flex;flex-direction:column;min-width:0}
.topbar{position:sticky;top:0;z-index:30;background:rgba(238,241,246,.85);backdrop-filter:blur(8px);display:flex;align-items:center;gap:16px;padding:14px 28px;border-bottom:1px solid var(--line)}
.crumbs{font-size:12px;color:var(--muted)}
.crumbs .h{font-size:19px;font-weight:700;color:var(--ink);margin-top:1px}
.topbar .search{margin-left:auto;position:relative}
.topbar .search input{width:280px;max-width:40vw;padding:9px 14px 9px 36px;border:1px solid var(--line);border-radius:999px;background:#fff;font-size:13px}
.topbar .search input:focus{outline:none;border-color:var(--primary)}
.topbar .search svg{position:absolute;left:12px;top:50%;transform:translateY(-50%);width:15px;height:15px;color:var(--muted)}
.lang{border:1px solid var(--line);background:#fff;border-radius:8px;padding:7px 10px;font-size:12.5px;font-weight:600;color:#475569}
.user-chip{display:flex;align-items:center;gap:9px;cursor:pointer}
.avatar{width:36px;height:36px;border-radius:10px;background:linear-gradient(135deg,var(--primary),#60a5fa);color:#fff;display:flex;align-items:center;justify-content:center;font-weight:700;font-size:13px}
.user-chip .nm{font-size:13px;font-weight:700;line-height:1.1}
.user-chip .rl{font-size:11px;color:var(--muted)}
.hamburger{display:none}
.content{padding:24px 28px 56px;max-width:1280px;width:100%}

/* ---------- CARDS / UI ---------- */
.card{background:var(--card);border:1px solid var(--line);border-radius:var(--r);box-shadow:var(--shadow)}
.card.pad{padding:20px}
.card-h{display:flex;align-items:center;gap:10px;margin-bottom:16px}
.card-h h3{font-size:15px;font-weight:700}
.card-h .badge{margin-left:0}
.grid{display:grid;gap:18px}
.g-2{grid-template-columns:1fr 1fr}
.g-3{grid-template-columns:repeat(3,1fr)}
.g-4{grid-template-columns:repeat(4,1fr)}
.g-12{grid-template-columns:7fr 5fr}
.g-21{grid-template-columns:2fr 1fr}
.row{display:flex;gap:16px;flex-wrap:wrap}
.badge{display:inline-flex;align-items:center;gap:5px;font-size:11px;font-weight:700;padding:3px 9px;border-radius:999px;background:var(--red-l);color:#be123c}
.badge.blue{background:var(--primary-l);color:var(--primary-d)}
.badge.green{background:var(--green-l);color:#15803d}
.badge.amber{background:var(--amber-l);color:#b45309}
.badge.gray{background:#eef1f6;color:#475569}
.btn{display:inline-flex;align-items:center;gap:8px;background:var(--primary);color:#fff;padding:10px 18px;border-radius:10px;font-weight:600;font-size:13.5px;transition:background .13s,transform .05s;box-shadow:0 4px 12px rgba(37,99,235,.28)}
.btn:hover{background:var(--primary-d)}
.btn:active{transform:translateY(1px)}
.btn.sec{background:#fff;color:#334155;border:1px solid var(--line);box-shadow:none}
.btn.sec:hover{background:#f6f8fc}
.btn.green{background:var(--green);box-shadow:0 4px 12px rgba(22,163,74,.28)}
.btn.green:hover{background:#15803d}
.btn.sm{padding:7px 13px;font-size:12.5px}
.btn.ghost{background:transparent;color:var(--primary);box-shadow:none}
.btn[disabled]{opacity:.5;cursor:not-allowed;transform:none}

/* stat tiles */
.tile{background:var(--card);border:1px solid var(--line);border-radius:var(--r);padding:18px 20px;box-shadow:var(--shadow)}
.tile .lbl{font-size:12.5px;color:var(--muted);font-weight:500;margin-bottom:8px}
.tile .val{font-size:30px;font-weight:800;letter-spacing:-1px;line-height:1}
.tile .val.green{color:var(--green)} .tile .val.blue{color:var(--primary)} .tile .val.red{color:var(--red)} .tile .val.amber{color:var(--amber)}
.tile .sub{font-size:12px;color:var(--muted);margin-top:6px}

/* progress bar */
.pbar{height:7px;background:#eef1f6;border-radius:999px;overflow:hidden}
.pbar>i{display:block;height:100%;border-radius:999px;background:var(--primary);transition:width .5s}
.pbar.green>i{background:var(--green)} .pbar.amber>i{background:var(--amber)} .pbar.red>i{background:var(--red)}

/* list rows */
.lrow{display:flex;align-items:center;gap:12px;padding:11px 0;border-bottom:1px solid var(--line)}
.lrow:last-child{border-bottom:none}
.lrow .tag{font-size:10.5px;font-weight:700;padding:3px 8px;border-radius:7px;background:var(--primary-l);color:var(--primary-d);flex-shrink:0;min-width:46px;text-align:center}

/* table */
table.tbl{width:100%;border-collapse:collapse;font-size:13px}
table.tbl th{text-align:left;font-size:11.5px;text-transform:uppercase;letter-spacing:.3px;color:var(--muted);font-weight:700;padding:9px 10px;border-bottom:1px solid var(--line)}
table.tbl td{padding:10px;border-bottom:1px solid var(--line)}
table.tbl tr:last-child td{border-bottom:none}
table.tbl.zebra tr:hover td{background:#f8fafd}
.mono{font-family:ui-monospace,Menlo,Consolas,monospace;font-size:12.5px;background:#f1f5fb;padding:2px 7px;border-radius:6px;color:#334155}

/* chips/levels */
.lvl{font-size:11px;font-weight:700;padding:3px 10px;border-radius:999px}
.lvl.ilg{background:var(--green-l);color:#15803d}
.lvl.orta{background:var(--primary-l);color:var(--primary-d)}
.lvl.bosh{background:var(--amber-l);color:#b45309}
.lvl.yordam{background:var(--red-l);color:#be123c}

/* rings */
.rings{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.ring{display:flex;flex-direction:column;align-items:center;gap:8px}
.ring .cap{font-size:12px;color:var(--muted);text-align:center;font-weight:500}

/* stepper */
.stepper{display:flex;gap:8px}
.step{flex:1;display:flex;align-items:center;gap:10px;padding:12px 14px;border-radius:12px;background:#f6f8fc;border:1px solid var(--line)}
.step .n{width:28px;height:28px;border-radius:50%;background:#cbd5e1;color:#fff;display:flex;align-items:center;justify-content:center;font-weight:700;font-size:13px;flex-shrink:0}
.step.done .n{background:var(--green)} .step.active .n{background:var(--primary)}
.step .st{font-weight:700;font-size:13px} .step .ss{font-size:11px;color:var(--muted)}
.step.active{border-color:var(--primary);box-shadow:0 4px 14px rgba(37,99,235,.14);background:#fff}

/* banner */
.banner{background:linear-gradient(120deg,var(--navy),#1e3a6e);color:#fff;border-radius:var(--r);padding:24px 26px;display:flex;align-items:center;gap:20px;position:relative;overflow:hidden}
.banner .glow{position:absolute;width:280px;height:280px;border-radius:50%;background:radial-gradient(circle,rgba(37,99,235,.5),transparent 60%);right:-60px;top:-120px}
.banner .meta{position:relative;z-index:1;flex:1}
.banner .hi{font-size:12.5px;color:#a9c0e6;font-weight:600}
.banner h2{font-size:22px;font-weight:800;margin:4px 0 6px;letter-spacing:-.4px}
.banner .d{color:#bcd0ee;font-size:13px}

/* video block */
.video{aspect-ratio:16/9;border-radius:12px;background:linear-gradient(135deg,#2a5db0,#1d4ed8);display:flex;align-items:center;justify-content:center;cursor:pointer;position:relative}
.video .play{width:60px;height:60px;border-radius:50%;background:rgba(255,255,255,.92);display:flex;align-items:center;justify-content:center;box-shadow:0 6px 20px rgba(0,0,0,.25)}
.video .play svg{width:24px;height:24px;color:var(--primary);margin-left:3px}

/* lab area */
.lab-el{padding:10px 13px;border:1.5px solid var(--line);border-radius:10px;background:#fff;font-size:13px;font-weight:500;cursor:grab;transition:border .12s,box-shadow .12s;user-select:none}
.lab-el:hover{border-color:var(--primary)}
.lab-el.dragging{opacity:.4}
.drop{min-height:48px;border:1.5px dashed #c7d2e0;border-radius:10px;padding:8px;display:flex;align-items:center;gap:8px;background:#f8fafd;transition:border .12s,background .12s}
.drop.over{border-color:var(--primary);background:var(--primary-l)}
.ok{color:var(--green)} .bad{color:var(--red)}
.slider-row{display:flex;flex-direction:column;gap:6px;margin-bottom:16px}
.slider-row .top{display:flex;justify-content:space-between;font-size:13px}
.slider-row input[type=range]{width:100%;accent-color:var(--primary)}

/* toast */
.toast-wrap{position:fixed;top:18px;right:18px;z-index:200;display:flex;flex-direction:column;gap:10px}
.toast{background:var(--navy);color:#fff;padding:12px 18px;border-radius:11px;box-shadow:var(--shadow-lg);font-size:13.5px;font-weight:500;animation:slideIn .25s;max-width:340px}
.toast.ok{background:var(--green)} .toast.err{background:var(--red)}
@keyframes slideIn{from{transform:translateX(40px);opacity:0}to{transform:none;opacity:1}}

/* modal */
.modal-bg{position:fixed;inset:0;background:rgba(15,27,45,.5);display:flex;align-items:center;justify-content:center;z-index:150;padding:20px;animation:fade .15s}
@keyframes fade{from{opacity:0}to{opacity:1}}
.modal{background:#fff;border-radius:16px;max-width:520px;width:100%;box-shadow:var(--shadow-lg);max-height:90vh;overflow:auto}
.modal .mh{padding:20px 22px;border-bottom:1px solid var(--line);display:flex;align-items:center;justify-content:space-between}
.modal .mh h3{font-size:17px;font-weight:700}
.modal .mb{padding:22px}
.modal .mf{padding:16px 22px;border-top:1px solid var(--line);display:flex;gap:10px;justify-content:flex-end}
.x{width:32px;height:32px;border-radius:8px;display:flex;align-items:center;justify-content:center;color:var(--muted)}
.x:hover{background:#f1f5fb}

/* misc */
.muted{color:var(--muted)} .b{font-weight:700} .center{text-align:center}
.sp{height:18px} .sp-sm{height:10px}
.pill-opt{display:flex;align-items:center;gap:11px;padding:13px 15px;border:1.5px solid var(--line);border-radius:11px;cursor:pointer;margin-bottom:10px;transition:border .12s,background .12s;font-size:14px}
.pill-opt:hover{border-color:var(--primary);background:#f8fafd}
.pill-opt.sel{border-color:var(--primary);background:var(--primary-l)}
.pill-opt.correct{border-color:var(--green);background:var(--green-l)}
.pill-opt.wrong{border-color:var(--red);background:var(--red-l)}
.pill-opt .mk{width:22px;height:22px;border-radius:50%;border:2px solid #cbd5e1;flex-shrink:0;display:flex;align-items:center;justify-content:center;font-size:12px;font-weight:700}
.pill-opt.sel .mk{border-color:var(--primary);background:var(--primary);color:#fff}
textarea{width:100%;border:1.5px solid var(--line);border-radius:10px;padding:12px;font-family:inherit;font-size:13.5px;resize:vertical;min-height:84px}
textarea:focus{outline:none;border-color:var(--primary)}
select,input.inp{padding:9px 12px;border:1.5px solid var(--line);border-radius:9px;font-size:13.5px;font-family:inherit;background:#fff}
select:focus,input.inp:focus{outline:none;border-color:var(--primary)}
.tabs{display:flex;gap:8px;flex-wrap:wrap;margin-bottom:18px}
.tab{padding:9px 16px;border-radius:10px;background:#fff;border:1px solid var(--line);font-weight:600;font-size:13px;color:#475569;cursor:pointer}
.tab.active{background:var(--primary);color:#fff;border-color:var(--primary)}
.hint-box{background:#fffbeb;border:1px solid var(--amber-l);border-radius:11px;padding:13px 15px;font-size:13px;color:#92590a}
.hint-box b{color:#78450a}

/* responsive */
@media(max-width:1000px){
  .g-2,.g-3,.g-4,.g-12,.g-21{grid-template-columns:1fr}
  .rings{grid-template-columns:1fr 1fr}
}
@media(max-width:820px){
  :root{--side:0px}
  .sidebar{transform:translateX(-100%);transition:transform .25s;width:248px;box-shadow:var(--shadow-lg)}
  body.nav-open .sidebar{transform:none}
  body.nav-open .scrim{position:fixed;inset:0;background:rgba(0,0,0,.4);z-index:45}
  .layout{grid-template-columns:1fr}
  .main{grid-column:1}
  .hamburger{display:flex;width:38px;height:38px;border-radius:9px;border:1px solid var(--line);background:#fff;align-items:center;justify-content:center}
  .topbar{padding:12px 16px}
  .content{padding:18px 16px 48px}
  .topbar .search{display:none}
  .stepper{flex-wrap:wrap}
  .step{min-width:46%}
  .login-wrap{grid-template-columns:1fr}
  .login-hero{display:none}
  .user-chip .nm,.user-chip .rl{display:none}
}
@media(max-width:480px){
  .g-4 .tile .val{font-size:24px}
  .rings{grid-template-columns:1fr}
}