/* ============================================================
   DUS 48 NET — Tasarım sistemi
   Koyu tema varsayılan, [data-theme="light"] ile açık tema.
   ============================================================ */
:root{
  --bg:#060912; --bg2:#0a1020; --card:rgba(16,24,44,.72); --card-s:#101a31; --card2:rgba(26,37,66,.85);
  --line:rgba(148,163,209,.13); --line2:rgba(148,163,209,.24); --tint:rgba(255,255,255,.035); --tint2:rgba(255,255,255,.07);
  --txt:#eef2ff; --mut:#9aa8c9; --dim:#67769a;
  --acc:#2dd4bf; --acc2:#818cf8; --acc3:#f472b6; --gold:#fbbf24; --ok:#22c55e; --bad:#f43f5e; --warn:#f59e0b;
  --grad:linear-gradient(135deg,#2dd4bf 0%,#60a5fa 50%,#a78bfa 100%);
  --r:20px; --sh:0 20px 60px -20px rgba(0,0,0,.65); --sh2:0 8px 30px -10px rgba(0,0,0,.5);
  --side:264px; --top:68px;
  --f-ui:"Plus Jakarta Sans","Segoe UI",system-ui,-apple-system,Roboto,Arial,sans-serif;
  --f-disp:"Fraunces","Georgia","Times New Roman",serif;
  color-scheme:dark;
}
[data-theme="light"]{
  --bg:#eef2f9; --bg2:#ffffff; --card:rgba(255,255,255,.78); --card-s:#ffffff; --card2:rgba(255,255,255,.95);
  --line:rgba(15,23,42,.08); --line2:rgba(15,23,42,.15); --tint:rgba(15,23,42,.03); --tint2:rgba(15,23,42,.06);
  --txt:#0f172a; --mut:#475569; --dim:#8a97ad;
  --acc:#0d9488; --acc2:#6366f1; --acc3:#db2777; --gold:#d97706;
  --grad:linear-gradient(135deg,#0d9488 0%,#2563eb 50%,#7c3aed 100%);
  --sh:0 20px 50px -24px rgba(15,23,42,.28); --sh2:0 8px 24px -12px rgba(15,23,42,.22);
  color-scheme:light;
}
*{box-sizing:border-box}
html,body{margin:0;min-height:100%}
body{background:var(--bg);color:var(--txt);font:15px/1.6 var(--f-ui);-webkit-font-smoothing:antialiased;overflow-x:hidden;transition:background .4s,color .4s}
a{color:inherit;text-decoration:none}
button{font:inherit;color:inherit;cursor:pointer}
input,select,textarea{font:inherit;color:inherit}
b,strong{font-weight:700}
::selection{background:color-mix(in srgb,var(--acc) 35%,transparent)}
::-webkit-scrollbar{width:11px;height:11px}
::-webkit-scrollbar-thumb{background:var(--line2);border-radius:10px;border:3px solid var(--bg)}
:focus-visible{outline:2px solid var(--acc);outline-offset:2px;border-radius:8px}

/* ---------- Canlı arka plan (aurora) ---------- */
.bg-glow{position:fixed;inset:0;pointer-events:none;z-index:0;overflow:hidden}
.bg-glow::before,.bg-glow::after,.bg-glow i{content:"";position:absolute;border-radius:50%;filter:blur(90px);opacity:.55;will-change:transform}
.bg-glow::before{width:620px;height:620px;left:-140px;top:-160px;background:radial-gradient(circle,#0ea5a4 0%,transparent 65%);animation:drift1 26s ease-in-out infinite alternate}
.bg-glow::after{width:700px;height:700px;right:-200px;top:10%;background:radial-gradient(circle,#4f46e5 0%,transparent 65%);animation:drift2 32s ease-in-out infinite alternate}
.bg-glow i{width:520px;height:520px;left:35%;bottom:-260px;background:radial-gradient(circle,#db2777 0%,transparent 65%);opacity:.3;animation:drift3 38s ease-in-out infinite alternate}
[data-theme="light"] .bg-glow::before,[data-theme="light"] .bg-glow::after{opacity:.22}
[data-theme="light"] .bg-glow i{opacity:.12}
.bg-noise{position:fixed;inset:0;pointer-events:none;z-index:0;opacity:.035;background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='160' height='160'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.9' numOctaves='3' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E")}
@keyframes drift1{to{transform:translate(160px,120px) scale(1.15)}}
@keyframes drift2{to{transform:translate(-180px,140px) scale(.9)}}
@keyframes drift3{to{transform:translate(-120px,-120px) scale(1.2)}}
@media (prefers-reduced-motion:reduce){*,*::before,*::after{animation-duration:.01ms!important;animation-iteration-count:1!important;transition-duration:.01ms!important}}

/* ---------- Kenar çubuğu ---------- */
.side{position:fixed;inset:0 auto 0 0;width:var(--side);z-index:30;display:flex;flex-direction:column;padding:20px 16px;
  background:linear-gradient(180deg,color-mix(in srgb,var(--bg2) 92%,transparent),color-mix(in srgb,var(--bg) 96%,transparent));
  border-right:1px solid var(--line);backdrop-filter:blur(18px);transition:transform .3s cubic-bezier(.2,.8,.2,1)}
.brand{display:flex;gap:12px;align-items:center;padding:4px 8px 22px}
.brand-logo{width:46px;height:46px;display:grid;place-items:center;font-size:24px;border-radius:15px;background:var(--grad);box-shadow:0 10px 30px -8px color-mix(in srgb,var(--acc) 70%,transparent);position:relative}
.brand-logo::after{content:"";position:absolute;inset:0;border-radius:inherit;background:linear-gradient(180deg,rgba(255,255,255,.35),transparent 55%)}
.brand b{display:block;font-family:var(--f-disp);font-size:21px;letter-spacing:.2px;line-height:1.1}
.brand small{color:var(--mut);font-size:12px;letter-spacing:.3px}
.nav{display:flex;flex-direction:column;gap:4px}
.nav a{display:flex;align-items:center;gap:12px;padding:10px 12px;border-radius:14px;color:var(--mut);font-weight:600;font-size:14.5px;transition:.2s;position:relative}
.nav a i{font-style:normal;width:34px;height:34px;display:grid;place-items:center;border-radius:11px;background:var(--tint);border:1px solid var(--line);font-size:16px;transition:.2s}
.nav a:hover{color:var(--txt);background:var(--tint)}
.nav a:hover i{transform:scale(1.08) rotate(-4deg)}
.nav a.on{color:var(--txt);background:linear-gradient(90deg,color-mix(in srgb,var(--acc) 16%,transparent),transparent)}
.nav a.on i{background:var(--grad);border-color:transparent;box-shadow:0 6px 18px -6px color-mix(in srgb,var(--acc) 80%,transparent)}
.nav a.on::before{content:"";position:absolute;left:-16px;top:10px;bottom:10px;width:4px;border-radius:0 4px 4px 0;background:var(--grad)}
.nav a em{margin-left:auto;font-style:normal;font-size:11px;font-weight:700;background:var(--bad);color:#fff;border-radius:99px;padding:1px 8px;box-shadow:0 0 0 3px color-mix(in srgb,var(--bad) 25%,transparent)}
.nav a em:empty{display:none}
.side-foot{margin-top:auto;display:flex;flex-direction:column;gap:10px}
.mini-count{font-size:12px;color:var(--mut);text-align:center;padding:14px 10px;border-radius:16px;background:var(--tint);border:1px solid var(--line);position:relative;overflow:hidden}
.mini-count::before{content:"";position:absolute;inset:0;background:var(--grad);opacity:.08}
.mini-count b{font-family:var(--f-disp);color:var(--gold);font-size:30px;line-height:1;display:block;margin-bottom:4px}

/* ---------- Üst çubuk ---------- */
.top{position:fixed;left:var(--side);right:0;top:0;height:var(--top);display:flex;align-items:center;gap:14px;padding:0 28px;
  background:color-mix(in srgb,var(--bg) 70%,transparent);backdrop-filter:blur(18px) saturate(140%);border-bottom:1px solid var(--line);z-index:20}
.menu{display:none}
.search{position:relative;flex:1;max-width:640px;display:flex;align-items:center;gap:10px;background:var(--card);border:1px solid var(--line);border-radius:14px;padding:0 14px;transition:.2s}
.search input{flex:1;background:none;border:0;outline:0;padding:11px 0}
.search:focus-within{border-color:var(--acc);box-shadow:0 0 0 4px color-mix(in srgb,var(--acc) 18%,transparent)}
.search-res{position:absolute;top:calc(100% + 10px);left:0;right:0;background:var(--card-s);border:1px solid var(--line2);border-radius:18px;box-shadow:var(--sh);max-height:66vh;overflow:auto;display:none;padding:8px}
.search-res.on{display:block;animation:pop .18s ease}
.sr{display:block;padding:11px 13px;border-radius:12px;cursor:pointer}
.sr:hover,.sr.act{background:var(--tint2)}
.sr small{display:block;color:var(--mut);font-size:12px;margin-top:2px}
.sr mark{background:color-mix(in srgb,var(--gold) 35%,transparent);color:inherit;border-radius:4px;padding:0 2px}
.top-right{display:flex;gap:10px;align-items:center;margin-left:auto}
.pill{display:inline-flex;align-items:center;gap:7px;padding:7px 13px;border-radius:99px;background:var(--card);border:1px solid var(--line);font-size:13px;color:var(--mut);white-space:nowrap}
.pill b{color:var(--txt)}
.theme-btn{width:40px;height:40px;border-radius:12px;background:var(--card);border:1px solid var(--line);display:grid;place-items:center;font-size:17px;transition:.25s}
.theme-btn:hover{transform:rotate(18deg) scale(1.06);border-color:var(--line2)}

.main{position:relative;z-index:1;margin-left:var(--side);padding:calc(var(--top) + 28px) 34px 70px;max-width:1540px}

/* ---------- Tipografi ---------- */
h1{font-family:var(--f-disp);font-size:34px;line-height:1.15;margin:0 0 8px;letter-spacing:-.4px;font-weight:700}
h2{font-size:19px;margin:0 0 14px;letter-spacing:-.2px}
h3{font-size:15.5px;margin:0 0 8px}
.sub{color:var(--mut);margin:0 0 24px;max-width:820px}
.grad-t{background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent}
.eyebrow{display:inline-flex;align-items:center;gap:8px;font-size:12px;font-weight:700;letter-spacing:1.4px;text-transform:uppercase;color:var(--acc)}

/* ---------- Kartlar ---------- */
.grid{display:grid;gap:18px}
.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))}
.card{background:var(--card);border:1px solid var(--line);border-radius:var(--r);padding:22px;position:relative;backdrop-filter:blur(14px);box-shadow:var(--sh2)}
.card::before{content:"";position:absolute;inset:0;border-radius:inherit;padding:1px;pointer-events:none;
  background:linear-gradient(160deg,rgba(255,255,255,.14),transparent 40%,transparent 70%,rgba(255,255,255,.05));
  -webkit-mask:linear-gradient(#000 0 0) content-box,linear-gradient(#000 0 0);-webkit-mask-composite:xor;mask-composite:exclude}
[data-theme="light"] .card::before{background:linear-gradient(160deg,rgba(255,255,255,.9),transparent 45%)}
.card.hov{transition:transform .25s cubic-bezier(.2,.8,.2,1),border-color .25s,box-shadow .25s}
.card.hov:hover{transform:translateY(-4px);border-color:var(--line2);box-shadow:var(--sh)}

/* Kademeli giriş animasyonu */
.st>*{animation:rise .5s cubic-bezier(.2,.8,.2,1) both}
.st>*:nth-child(1){animation-delay:.02s}.st>*:nth-child(2){animation-delay:.05s}.st>*:nth-child(3){animation-delay:.08s}.st>*:nth-child(4){animation-delay:.11s}
.st>*:nth-child(5){animation-delay:.14s}.st>*:nth-child(6){animation-delay:.17s}.st>*:nth-child(7){animation-delay:.2s}.st>*:nth-child(8){animation-delay:.23s}
.st>*:nth-child(n+9){animation-delay:.26s}
@keyframes rise{from{opacity:0;transform:translateY(14px) scale(.985)}to{opacity:1;transform:none}}
.fade{animation:fade .4s ease both}
@keyframes fade{from{opacity:0;transform:translateY(8px)}to{opacity:1;transform:none}}
@keyframes pop{from{opacity:0;transform:scale(.97)}to{opacity:1;transform:none}}

/* ---------- Butonlar ---------- */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;border:1px solid transparent;border-radius:14px;padding:11px 20px;font-weight:700;letter-spacing:.1px;
  background:var(--grad);background-size:160% 160%;color:#fff;transition:transform .15s,box-shadow .25s,background-position .5s,filter .2s;white-space:nowrap;
  box-shadow:0 10px 26px -12px color-mix(in srgb,var(--acc2) 90%,transparent);position:relative;overflow:hidden}
.btn::after{content:"";position:absolute;inset:0;background:linear-gradient(120deg,transparent 30%,rgba(255,255,255,.35) 50%,transparent 70%);transform:translateX(-120%);transition:transform .6s}
.btn:hover{transform:translateY(-2px);background-position:100% 50%;box-shadow:0 16px 34px -14px color-mix(in srgb,var(--acc2) 95%,transparent)}
.btn:hover::after{transform:translateX(120%)}
.btn:active{transform:translateY(0) scale(.98)}
.btn:disabled{opacity:.4;pointer-events:none}
.btn.ghost{background:var(--tint);border-color:var(--line2);color:var(--txt);box-shadow:none}
.btn.ghost:hover{background:var(--tint2)}
.btn.gold{background:linear-gradient(135deg,#f59e0b,#ef4444);box-shadow:0 10px 26px -12px #f59e0b}
.btn.red{background:linear-gradient(135deg,#fb7185,#e11d48);box-shadow:0 10px 26px -12px #e11d48}
.btn.green{background:linear-gradient(135deg,#34d399,#059669);box-shadow:0 10px 26px -12px #059669}
.btn.sm{padding:7px 13px;font-size:13px;border-radius:11px}
.btn.lg{padding:15px 26px;font-size:16px;border-radius:16px}
.icon-btn{width:40px;height:40px;border-radius:12px;background:var(--card);border:1px solid var(--line);display:grid;place-items:center}

/* ---------- Yardımcılar ---------- */
.row{display:flex;gap:12px;align-items:center;flex-wrap:wrap}
.sp{flex:1}
.mut{color:var(--mut)}
.dim{color:var(--dim)}
.tag{display:inline-flex;align-items:center;gap:5px;font-size:12px;font-weight:600;padding:4px 10px;border-radius:99px;background:var(--tint);border:1px solid var(--line);color:var(--mut);white-space:nowrap}
.tag.t3{background:color-mix(in srgb,#f43f5e 14%,transparent);border-color:color-mix(in srgb,#f43f5e 40%,transparent);color:#fb7185}
.tag.t2{background:color-mix(in srgb,#f59e0b 14%,transparent);border-color:color-mix(in srgb,#f59e0b 40%,transparent);color:#f59e0b}
.tag.t1{background:color-mix(in srgb,#60a5fa 14%,transparent);border-color:color-mix(in srgb,#60a5fa 40%,transparent);color:#60a5fa}
.bar{height:8px;border-radius:99px;background:var(--tint2);overflow:hidden}
.bar>i{display:block;height:100%;border-radius:99px;background:var(--grad);transition:width .9s cubic-bezier(.2,.8,.2,1);box-shadow:0 0 12px color-mix(in srgb,var(--acc) 60%,transparent)}
.bar.gold>i{background:linear-gradient(90deg,#f59e0b,#fde047);box-shadow:0 0 12px #f59e0b66}
.kv{display:flex;justify-content:space-between;gap:10px;font-size:13px;color:var(--mut);margin:6px 0}
.kv b{color:var(--txt)}
.sep{height:1px;background:var(--line);margin:18px 0}
.tbl{width:100%;border-collapse:collapse;font-size:14px;margin:10px 0}
.tbl th,.tbl td{padding:10px 12px;border-bottom:1px solid var(--line);text-align:left;vertical-align:top}
.tbl th{color:var(--dim);font-weight:700;font-size:11.5px;text-transform:uppercase;letter-spacing:.7px}
.tbl tr:hover td{background:var(--tint)}
.empty{padding:48px;text-align:center;color:var(--mut)}
.empty big{font-size:52px;display:block;margin-bottom:10px}
.chk{display:inline-flex;align-items:center;gap:8px;cursor:pointer;user-select:none;font-weight:600}
.chk input{accent-color:var(--acc);width:18px;height:18px}
input[type=range]{accent-color:var(--acc);width:100%}
.inp{background:var(--bg2);border:1px solid var(--line2);border-radius:12px;padding:10px 13px;outline:0;min-width:0;transition:.2s}
.inp:focus{border-color:var(--acc);box-shadow:0 0 0 4px color-mix(in srgb,var(--acc) 16%,transparent)}
.kbd{font-size:11px;font-weight:700;color:var(--mut);border:1px solid var(--line2);border-bottom-width:2px;border-radius:7px;padding:1px 7px;background:var(--tint)}
.btn .kbd{color:#fff;border-color:rgba(255,255,255,.45);background:rgba(0,0,0,.18)}

/* ---------- Halka (SVG) ---------- */
.mring{position:relative;display:inline-grid;place-items:center}
.mring svg{transform:rotate(-90deg);display:block}
.mring .trk{stroke:var(--tint2)}
.mring .val{transition:stroke-dashoffset 1.2s cubic-bezier(.2,.8,.2,1);filter:drop-shadow(0 0 6px color-mix(in srgb,var(--c,var(--acc)) 70%,transparent))}
.mring>span{position:absolute;text-align:center;line-height:1.1}
.mring>span b{display:block;font-weight:800}
.mring>span small{color:var(--mut);font-size:11px}

/* ---------- Panel ---------- */
.hero{display:grid;grid-template-columns:1.4fr 1fr;gap:18px;margin-bottom:18px}
.hero-main{padding:34px;overflow:hidden;min-height:330px}
.hero-main::after{content:"";position:absolute;right:-120px;top:-120px;width:420px;height:420px;border-radius:50%;
  background:conic-gradient(from 0deg,#2dd4bf,#60a5fa,#a78bfa,#f472b6,#2dd4bf);opacity:.16;filter:blur(40px);animation:spin 18s linear infinite;pointer-events:none}
@keyframes spin{to{transform:rotate(360deg)}}
.hero-main h1{font-size:44px;line-height:1.08;margin-top:16px;max-width:620px}
.hero-main h1 span{background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent}
.orbit{position:absolute;right:28px;top:30px;width:190px;height:190px;pointer-events:none;opacity:.95}
.orbit .o{position:absolute;inset:0;border-radius:50%;border:1px dashed var(--line2);animation:spin 40s linear infinite}
.orbit .o.o2{inset:30px;animation-duration:28s;animation-direction:reverse}
.orbit .o span{position:absolute;width:34px;height:34px;margin:-17px;border-radius:11px;display:grid;place-items:center;font-size:17px;background:var(--card-s);border:1px solid var(--line2);box-shadow:var(--sh2)}
.orbit .core{position:absolute;inset:62px;border-radius:50%;display:grid;place-items:center;font-size:36px;background:var(--grad);box-shadow:0 0 50px color-mix(in srgb,var(--acc) 60%,transparent)}
.count{display:flex;gap:12px;margin:26px 0 10px;flex-wrap:wrap}
.count div{background:var(--tint);border:1px solid var(--line2);border-radius:18px;padding:14px 16px;min-width:92px;text-align:center;backdrop-filter:blur(6px)}
.count b{display:block;font-family:var(--f-disp);font-size:40px;line-height:1;font-variant-numeric:tabular-nums;letter-spacing:-1px}
.count small{color:var(--mut);font-size:12px;font-weight:600}
.ring-wrap{display:flex;align-items:center;gap:26px}
.stat{display:flex;flex-direction:column;gap:3px;padding:14px;border-radius:16px;background:var(--tint);border:1px solid var(--line)}
.stat b{font-size:26px;line-height:1.1;font-weight:800;font-variant-numeric:tabular-nums}
.stat small{color:var(--mut);font-size:12px;font-weight:600}
.stat-ico{font-size:20px;margin-bottom:4px}

.subj{display:flex;flex-direction:column;gap:12px;cursor:pointer;overflow:hidden}
.subj::after{content:"";position:absolute;inset:0 0 auto 0;height:3px;background:linear-gradient(90deg,var(--c,var(--acc)),transparent)}
.subj::before{background:radial-gradient(260px 120px at 100% 0%,color-mix(in srgb,var(--c) 22%,transparent),transparent 70%)!important;-webkit-mask:none!important;mask:none!important;padding:0!important}
.subj-h{display:flex;align-items:center;gap:13px;position:relative}
.subj-ico{width:48px;height:48px;border-radius:15px;display:grid;place-items:center;font-size:23px;flex:none;
  background:linear-gradient(145deg,color-mix(in srgb,var(--c) 32%,transparent),color-mix(in srgb,var(--c) 10%,transparent));
  border:1px solid color-mix(in srgb,var(--c) 45%,transparent);box-shadow:0 8px 22px -10px var(--c);transition:transform .3s}
.subj:hover .subj-ico{transform:scale(1.08) rotate(-6deg)}
.subj-h b{display:block;line-height:1.25;font-size:15px}
.subj-h small{color:var(--mut);font-size:12px}
.subj-rings{display:flex;gap:14px;align-items:center;position:relative}
.subj-rings .lbl{font-size:12px;color:var(--mut);line-height:1.35}
.subj-rings .lbl b{color:var(--txt);font-size:13px}
.task{display:flex;align-items:flex-start;gap:12px;padding:13px 14px;border-radius:16px;border:1px solid var(--line);background:var(--tint);margin-bottom:9px;cursor:pointer;transition:.2s}
.task:hover{border-color:var(--line2);transform:translateX(3px)}
.task.done{opacity:.55}
.task.done .task-t{text-decoration:line-through}
.task .box{width:24px;height:24px;border-radius:8px;border:2px solid var(--line2);flex:none;display:grid;place-items:center;font-size:13px;margin-top:1px;transition:.25s;color:#fff}
.task.done .box{background:var(--ok);border-color:var(--ok);transform:scale(1.08)}
.task small{display:block;color:var(--mut);font-size:12px}

/* ---------- İpucu kutusu ---------- */
.tip{position:fixed;z-index:100;max-width:440px;background:color-mix(in srgb,var(--card-s) 96%,transparent);border:1px solid var(--line2);border-radius:18px;padding:16px 18px;font-size:13.5px;line-height:1.65;box-shadow:0 26px 70px -18px rgba(0,0,0,.6);pointer-events:none;opacity:0;transform:translateY(6px) scale(.97);transition:opacity .15s,transform .15s;backdrop-filter:blur(14px)}
.tip.on{opacity:1;transform:none}
.tip::before{content:"";position:absolute;left:0;top:14px;bottom:14px;width:3px;border-radius:0 3px 3px 0;background:var(--grad)}
.tip h4{margin:0 0 8px;font-size:14.5px;color:var(--txt)}
.tip b{color:var(--acc)}
.tip ul{margin:6px 0 0;padding-left:18px}
.tip li{margin:3px 0}
.tip .tip-f{margin-top:10px;padding-top:10px;border-top:1px solid var(--line);color:var(--mut);font-size:12px}

/* ---------- Ders sayfası ---------- */
.ders-head{display:flex;gap:22px;align-items:center;padding:30px;margin-bottom:18px;overflow:hidden}
.ders-head::after{content:"";position:absolute;inset:0;pointer-events:none;background:radial-gradient(600px 260px at 0% 0%,color-mix(in srgb,var(--c) 34%,transparent),transparent 70%),radial-gradient(400px 200px at 100% 100%,color-mix(in srgb,var(--c) 16%,transparent),transparent 70%)}
.ders-head>*{position:relative;z-index:1}
.ders-head .subj-ico{width:78px;height:78px;font-size:40px;border-radius:24px}
.ders-head h1{font-size:38px}
.ders-rings{display:flex;gap:18px;flex-wrap:wrap}
.tabs{display:flex;gap:6px;background:var(--card);border:1px solid var(--line);border-radius:18px;padding:6px;margin-bottom:18px;flex-wrap:wrap;backdrop-filter:blur(12px)}
.tabs button{border:0;background:none;padding:10px 17px;border-radius:13px;color:var(--mut);font-weight:700;transition:.2s}
.tabs button:hover{color:var(--txt)}
.tabs button.on{background:var(--card2);color:var(--txt);box-shadow:var(--sh2)}
.konu{cursor:help;display:flex;flex-direction:column;gap:9px;min-height:140px;overflow:hidden}
.konu .num{position:absolute;right:16px;bottom:-12px;font-family:var(--f-disp);font-size:78px;font-weight:700;line-height:1;opacity:.05;pointer-events:none}
.konu.ok{border-color:color-mix(in srgb,var(--ok) 45%,transparent)}
.konu.ok::after{content:"✓";position:absolute;top:14px;right:14px;width:24px;height:24px;border-radius:50%;background:var(--ok);color:#fff;display:grid;place-items:center;font-size:13px;font-weight:800;box-shadow:0 0 0 4px color-mix(in srgb,var(--ok) 20%,transparent)}
.konu.ok .konu-h .tag{margin-right:30px}
.konu-h{display:flex;gap:10px;align-items:flex-start}
.konu-h b{flex:1;line-height:1.35;font-size:15px}
.konu p{margin:0;color:var(--mut);font-size:13.5px}
.konu .det{display:none;font-size:13.5px;border-top:1px dashed var(--line2);padding-top:12px;margin-top:4px;line-height:1.7}
.konu .det b,.det b{color:var(--acc)}
.konu.open .det{display:block;animation:fade .3s ease}
.konu-f{display:flex;gap:8px;margin-top:auto;align-items:center}
.tip-li{display:flex;gap:13px;padding:15px;border:1px solid var(--line);border-radius:16px;background:var(--tint);margin-bottom:10px;transition:.2s}
.tip-li:hover{border-color:var(--line2)}
.tip-li i{font-style:normal;font-size:20px}
.mn{padding:17px;border-radius:18px;border:1px solid color-mix(in srgb,var(--acc2) 35%,transparent);background:linear-gradient(135deg,color-mix(in srgb,var(--acc2) 14%,transparent),color-mix(in srgb,var(--acc) 7%,transparent))}
.mn b{color:var(--acc2);font-size:15px}
.cheat{columns:2;column-gap:18px}
.cheat .ci{break-inside:avoid;padding:13px 15px;border-radius:14px;border:1px solid var(--line);background:var(--tint);margin-bottom:12px;border-left:3px solid var(--c,var(--acc))}
.cheat .ci b{display:block;font-size:14px;margin-bottom:3px}
.cheat .ci span{color:var(--mut);font-size:13.5px}

/* ---------- Soru ---------- */
.q-wrap{max-width:920px;margin:0 auto}
.q-top{display:flex;align-items:center;gap:12px;margin-bottom:16px;flex-wrap:wrap}
.q-prog{flex:1;min-width:170px}
.timer{font-variant-numeric:tabular-nums;font-weight:800;padding:8px 14px;border-radius:12px;background:var(--card);border:1px solid var(--line)}
.timer.low{color:var(--bad);border-color:color-mix(in srgb,var(--bad) 50%,transparent);animation:pulse 1s infinite}
@keyframes pulse{50%{box-shadow:0 0 0 6px color-mix(in srgb,var(--bad) 18%,transparent)}}
.streak{display:inline-flex;align-items:center;gap:6px;padding:7px 12px;border-radius:12px;font-weight:800;font-size:13px;background:linear-gradient(135deg,color-mix(in srgb,#f59e0b 22%,transparent),color-mix(in srgb,#ef4444 18%,transparent));border:1px solid color-mix(in srgb,#f59e0b 45%,transparent)}
.streak.bump{animation:bump .5s cubic-bezier(.2,1.6,.4,1)}
@keyframes bump{40%{transform:scale(1.25)}}
.q-card{padding:32px;overflow:hidden}
.q-card::after{content:"";position:absolute;left:0;top:0;bottom:0;width:4px;background:var(--c,var(--acc))}
.q-meta{display:flex;gap:8px;margin-bottom:14px;flex-wrap:wrap}
.q-num{font-family:var(--f-disp);font-size:15px;color:var(--dim);font-weight:700;letter-spacing:.5px}
.q-stem{font-size:19px;line-height:1.6;margin:4px 0 22px;font-weight:650}
.opt{display:flex;gap:14px;align-items:center;width:100%;text-align:left;background:var(--tint);border:1px solid var(--line);border-radius:16px;padding:14px 16px;margin-bottom:10px;transition:transform .15s,border-color .15s,background .15s;font-size:15px}
.opt:hover:not(:disabled){border-color:var(--line2);background:var(--tint2);transform:translateX(4px)}
.opt .L{width:34px;height:34px;border-radius:11px;display:grid;place-items:center;flex:none;font-weight:800;background:var(--card-s);border:1px solid var(--line2);transition:.2s}
.opt.sel{border-color:var(--acc2);background:color-mix(in srgb,var(--acc2) 12%,transparent)}
.opt.sel .L{background:var(--acc2);color:#fff;border-color:var(--acc2)}
.opt.ok{border-color:var(--ok);background:color-mix(in srgb,var(--ok) 13%,transparent);animation:okPop .45s cubic-bezier(.2,1.5,.4,1)}
.opt.ok .L{background:var(--ok);color:#fff;border-color:var(--ok)}
.opt.no{border-color:var(--bad);background:color-mix(in srgb,var(--bad) 12%,transparent);animation:shake .4s}
.opt.no .L{background:var(--bad);color:#fff;border-color:var(--bad)}
.opt:disabled{cursor:default}
@keyframes okPop{40%{transform:scale(1.02)}}
@keyframes shake{20%,60%{transform:translateX(-6px)}40%,80%{transform:translateX(6px)}}
.expl{margin-top:18px;padding:18px 18px 18px 54px;border-radius:18px;background:color-mix(in srgb,var(--acc) 9%,transparent);border:1px solid color-mix(in srgb,var(--acc) 35%,transparent);position:relative;animation:fade .35s ease}
.expl::before{content:"💡";position:absolute;left:16px;top:16px;font-size:22px}
.expl.no{background:color-mix(in srgb,var(--bad) 8%,transparent);border-color:color-mix(in srgb,var(--bad) 32%,transparent)}
.expl.no::before{content:"📌"}
.expl b{color:var(--acc)}
.expl.no b{color:#fb7185}
.q-nav{display:flex;gap:10px;margin-top:20px;align-items:center;flex-wrap:wrap}
.dots{display:flex;flex-wrap:wrap;gap:6px;margin-top:16px}
.dots button{width:30px;height:30px;border-radius:9px;border:1px solid var(--line);background:var(--tint);font-size:12px;font-weight:700;color:var(--mut);transition:.15s}
.dots button:hover{transform:translateY(-2px)}
.dots button.a{background:color-mix(in srgb,var(--acc2) 25%,transparent);border-color:color-mix(in srgb,var(--acc2) 55%,transparent);color:var(--txt)}
.dots button.cur{outline:2px solid var(--gold);outline-offset:1px}
.dots button.ok{background:color-mix(in srgb,var(--ok) 28%,transparent);border-color:color-mix(in srgb,var(--ok) 60%,transparent);color:var(--txt)}
.dots button.no{background:color-mix(in srgb,var(--bad) 26%,transparent);border-color:color-mix(in srgb,var(--bad) 60%,transparent);color:var(--txt)}
.res-big{display:flex;gap:16px;flex-wrap:wrap}
.res-big .card{flex:1;min-width:130px;text-align:center}
.res-big b{font-family:var(--f-disp);font-size:42px;display:block;line-height:1.1}
.setup-ders{display:grid;grid-template-columns:repeat(auto-fill,minmax(230px,1fr));gap:9px}
.setup-ders label{display:flex;align-items:center;gap:10px;padding:11px 13px;border:1px solid var(--line);border-radius:14px;background:var(--tint);cursor:pointer;transition:.15s;font-weight:600;font-size:14px}
.setup-ders label:hover{border-color:var(--line2)}
.setup-ders label:has(input:checked){border-color:color-mix(in srgb,var(--acc) 55%,transparent);background:color-mix(in srgb,var(--acc) 9%,transparent)}
.setup-ders input{accent-color:var(--acc);width:17px;height:17px}
.seg{display:inline-flex;background:var(--bg2);border:1px solid var(--line2);border-radius:14px;padding:4px;gap:4px;flex-wrap:wrap}
.seg button{border:0;background:none;padding:8px 15px;border-radius:11px;color:var(--mut);font-weight:700;transition:.2s}
.seg button.on{background:var(--grad);color:#fff;box-shadow:var(--sh2)}

/* ---------- Kartlar (flashcard) ---------- */
.fc-wrap{perspective:1600px;max-width:740px;margin:0 auto}
.fc{position:relative;height:340px;transform-style:preserve-3d;transition:transform .7s cubic-bezier(.2,.8,.2,1);cursor:pointer}
.fc.flip{transform:rotateY(180deg)}
.fc-wrap::before,.fc-wrap::after{content:"";display:block;height:10px;margin:0 22px;border-radius:0 0 20px 20px;background:var(--card);border:1px solid var(--line);border-top:0;opacity:.6}
.fc-wrap::after{margin:0 44px;opacity:.35}
.fc-wrap::before{order:2}
.fc>div{position:absolute;inset:0;backface-visibility:hidden;border-radius:26px;display:flex;flex-direction:column;align-items:center;justify-content:center;text-align:center;padding:40px;border:1px solid var(--line2);box-shadow:var(--sh);overflow:hidden}
.fc>div::after{content:"";position:absolute;inset:0;background:linear-gradient(115deg,transparent 35%,rgba(255,255,255,.08) 50%,transparent 65%);pointer-events:none}
.fc .f1{background:radial-gradient(500px 240px at 50% 0%,color-mix(in srgb,var(--acc2) 32%,transparent),transparent),var(--card-s)}
.fc .f2{background:radial-gradient(500px 240px at 50% 100%,color-mix(in srgb,var(--acc) 30%,transparent),transparent),var(--card-s);transform:rotateY(180deg)}
.fc big{font-size:25px;font-weight:750;line-height:1.45}
.fc small{position:absolute;top:20px;left:24px;color:var(--mut);font-size:12px;font-weight:800;letter-spacing:1.4px}
.boxes{display:flex;gap:9px;justify-content:center;margin:20px 0;flex-wrap:wrap}
.boxes div{padding:10px 14px;border-radius:14px;border:1px solid var(--line);background:var(--card);text-align:center;min-width:80px}
.boxes b{display:block;font-size:22px;font-weight:800}
.boxes small{color:var(--mut);font-size:11px;font-weight:600}

/* ---------- Plan ---------- */
.week{display:grid;grid-template-columns:repeat(7,minmax(0,1fr));gap:10px}
.day{padding:13px;border-radius:16px;border:1px solid var(--line);background:var(--card);min-height:150px;font-size:12.5px;transition:.2s;backdrop-filter:blur(10px)}
.day:hover{border-color:var(--line2);transform:translateY(-2px)}
.day.today{border-color:var(--gold);box-shadow:0 0 0 1px var(--gold) inset,0 10px 30px -14px var(--gold)}
.day.past{opacity:.45}
.day h4{margin:0 0 8px;font-size:13px;display:flex;justify-content:space-between}
.day li{margin:4px 0;list-style:none;line-height:1.4}
.day ul{padding:0;margin:0}
.day li.d{text-decoration:line-through;color:var(--dim)}
.phase{display:flex;gap:0;border-radius:16px;overflow:hidden;border:1px solid var(--line);margin:16px 0}
.phase div{padding:13px;font-size:13px;text-align:center;font-weight:600}

/* ---------- Hedef ---------- */
.tgt{display:grid;grid-template-columns:36px 1fr 90px 1.4fr 70px;gap:12px;align-items:center;padding:11px 0;border-bottom:1px solid var(--line)}
.tgt:last-child{border:0}
.tgt .v{font-weight:800;text-align:right;font-variant-numeric:tabular-nums}

/* ---------- Strateji ---------- */
.acc{margin-bottom:12px;padding:0;overflow:hidden}
.acc>button{width:100%;border:0;background:none;text-align:left;padding:19px 22px;display:flex;align-items:center;gap:14px;font-size:16.5px;font-weight:750}
.acc>button i{font-style:normal;font-size:22px;width:44px;height:44px;border-radius:14px;display:grid;place-items:center;background:var(--tint);border:1px solid var(--line)}
.acc>button::after{content:"＋";margin-left:auto;color:var(--mut);transition:.3s;font-size:18px}
.acc.open>button::after{transform:rotate(45deg);color:var(--acc)}
.acc>div{display:none;padding:0 24px 22px 80px;color:var(--txt);opacity:.92}
.acc.open>div{display:block;animation:fade .3s ease}
.acc ul,.acc ol{padding-left:20px}
.acc li{margin:7px 0}
.acc .tbl td,.acc .tbl th{padding:8px 10px}

/* ---------- Modal / toast ---------- */
.modal{position:fixed;inset:0;background:rgba(3,6,14,.6);backdrop-filter:blur(6px);z-index:90;display:none;align-items:center;justify-content:center;padding:20px}
.modal.on{display:flex}
.modal-card{background:var(--card-s);border:1px solid var(--line2);border-radius:24px;padding:28px;width:100%;max-width:580px;max-height:90vh;overflow:auto;box-shadow:var(--sh);animation:pop .2s ease}
.field{display:flex;flex-direction:column;gap:6px;margin-bottom:14px}
.field label{font-size:13px;color:var(--mut);font-weight:600}
.toast{position:fixed;bottom:28px;left:50%;transform:translateX(-50%) translateY(20px);background:var(--card-s);border:1px solid var(--line2);padding:13px 22px;border-radius:16px;box-shadow:var(--sh);opacity:0;pointer-events:none;transition:.3s cubic-bezier(.2,.8,.2,1);z-index:120;font-weight:600}
.toast.on{opacity:1;transform:translateX(-50%)}
.confetti{position:fixed;top:-12px;width:9px;height:14px;border-radius:2px;z-index:130;pointer-events:none;animation:fall 1.8s cubic-bezier(.3,.6,.5,1) forwards}
@keyframes fall{to{transform:translateY(105vh) rotate(760deg);opacity:.7}}

/* ---------- Duyarlı ---------- */
@media (max-width:1240px){.g4{grid-template-columns:repeat(2,minmax(0,1fr))}.hero{grid-template-columns:1fr}.week{grid-template-columns:repeat(4,minmax(0,1fr))}.orbit{opacity:.5}}
@media (max-width:900px){
  .side{transform:translateX(-100%);box-shadow:none}.side.on{transform:none;box-shadow:var(--sh)}
  .top{left:0;padding:0 14px}.menu{display:grid}
  .main{margin-left:0;padding:calc(var(--top) + 18px) 16px 50px}
  .g2,.g3,.g4{grid-template-columns:1fr}
  .week{grid-template-columns:repeat(2,minmax(0,1fr))}
  .tgt{grid-template-columns:30px 1fr 64px}.tgt .bar,.tgt .need,.tgt input[type=range]{grid-column:1/-1}
  .ring-wrap{flex-direction:column;align-items:stretch}
  h1{font-size:27px}.hero-main{padding:24px}.hero-main h1{font-size:30px}.orbit{display:none}
  .count div{min-width:68px;padding:10px}.count b{font-size:28px}
  .top-right .pill{display:none}
  .ders-head{flex-direction:column;align-items:flex-start}.ders-head h1{font-size:28px}
  .cheat{columns:1}
  .acc>div{padding:0 18px 18px}
  .q-card{padding:22px}.q-stem{font-size:17px}
}

/* ---------- Yazdırma (Hızlı Tekrar sayfası) ---------- */
@media print{
  .side,.top,.bg-glow,.bg-noise,.tabs,.ders-head .ders-rings,.btn,.tip{display:none!important}
  body{background:#fff;color:#000}.main{margin:0;padding:0}
  .card{background:#fff;box-shadow:none;border-color:#ddd;backdrop-filter:none}
  .cheat .ci{background:#fff}
}

/* Orbit ile başlık çakışmasın */
.hero-main h1,.hero-main>p,.hero-main .eyebrow{max-width:calc(100% - 215px)}
@media (max-width:900px){.hero-main h1,.hero-main>p,.hero-main .eyebrow{max-width:none}}
.konu .num{opacity:.045;bottom:-16px}

/* ================= Deneme / Zayıf konu / Atlas ================= */
:root{--pos:#3987e5;--neg:#e5534b}
[data-theme="light"]{--pos:#2a78d6;--neg:#d03b3b}
.nav{flex:1;min-height:0;overflow-y:auto;scrollbar-width:thin;margin:0 -6px;padding:0 6px}
.nav a{padding:8px 12px}
@media (max-height:820px){.nav a{padding:6px 12px}.nav a i{width:30px;height:30px}}
.bar.bad>i{background:linear-gradient(90deg,#f43f5e,#fb923c);box-shadow:0 0 12px #f43f5e55}
.konu.hl{border-color:var(--acc);box-shadow:0 0 0 3px color-mix(in srgb,var(--acc) 30%,transparent),var(--sh2);animation:hlPulse 1.6s ease 2}
@keyframes hlPulse{50%{box-shadow:0 0 0 8px color-mix(in srgb,var(--acc) 12%,transparent),var(--sh2)}}

.chart{width:100%;height:auto;display:block;overflow:visible}
.chart .gr{stroke:var(--line);stroke-width:1}
.chart .zero{stroke:var(--line2);stroke-width:1.5}
.chart .ax{fill:var(--dim);font-size:11.5px;font-weight:600}
.chart .ax2{fill:var(--mut);font-size:13px;font-weight:600}
.chart .val{fill:var(--txt);font-size:12.5px;font-weight:800;font-variant-numeric:tabular-nums}
.chart .tgtl{stroke:var(--mut);stroke-width:1.5;stroke-dasharray:6 5}
.chart .ln{fill:none;stroke:var(--pos);stroke-width:2.5;stroke-linejoin:round;stroke-linecap:round}
.chart .dot{fill:var(--pos);stroke:var(--card-s);stroke-width:2;transition:r .15s}
.chart .hit,.chart .hitr{fill:transparent}
.chart g:hover .dot{r:7}
.chart g:hover .hitr{fill:var(--tint)}
.chart .bpos{fill:var(--pos)}.chart .bneg{fill:var(--neg)}
.chart g[data-tiph]{cursor:help}

.zk{display:flex;align-items:center;gap:12px;padding:10px 8px;border-bottom:1px solid var(--line);border-radius:12px;transition:.15s}
.zk:last-child{border-bottom:0}
.zk:hover{background:var(--tint)}
.zd{border:1px solid var(--line);border-radius:14px;padding:10px 14px;margin-bottom:8px;background:var(--tint)}
.zd summary{display:flex;justify-content:space-between;gap:10px;cursor:pointer;list-style:none}
.zd summary::-webkit-details-marker{display:none}
.zd[open] summary{margin-bottom:8px}
@media (max-width:700px){.zk{flex-wrap:wrap}.zk .row{width:100%;justify-content:flex-end}}

.atlas-v{border-radius:16px;background:var(--tint);border:1px solid var(--line);padding:14px}
svg.atl{width:100%;max-width:980px;margin:0 auto;max-height:640px;height:auto;display:block;overflow:visible}
.atl .bone{fill:color-mix(in srgb,var(--mut) 12%,transparent);stroke:var(--mut);stroke-width:2}
.atl .ridge{fill:none;stroke:var(--mut);stroke-width:2;stroke-linecap:round;opacity:.75}
.atl .sella,.atl .hole{fill:color-mix(in srgb,var(--bg) 70%,transparent);stroke:var(--mut);stroke-width:1.5}
.atl .fo{fill:var(--acc);stroke:var(--acc);opacity:.85}
.atl g.fo circle{fill:var(--acc)}
.atl .ld{stroke:var(--line2);stroke-width:1;stroke-dasharray:3 3}
.atl .lb{fill:var(--txt);font-size:13px;font-weight:700}
.atl .lbs{fill:var(--mut);font-size:10px;font-weight:600}
.fdiw .lbs{color:var(--mut);font-size:12px;font-weight:600}
.atl .rg{fill:var(--dim);font-size:12px;font-weight:800;letter-spacing:2px;text-anchor:middle}
.atl .hs,.atl [data-tiph]{cursor:help}
.atl .hs:hover .fo{fill:var(--gold);stroke:var(--gold);opacity:1}
.atl .hs:hover .lb{fill:var(--gold)}
.atl .hs:hover .ld{stroke:var(--gold)}
.atl .sella:hover,.atl .hole:hover{fill:color-mix(in srgb,var(--gold) 25%,transparent)}
.atl .teeth rect{fill:var(--card-s);stroke:var(--mut);stroke-width:1.2}
.atl .lfl{fill:none;stroke-width:4;stroke-linecap:round;stroke-linejoin:round;transition:opacity .25s,stroke-width .2s}
.atl .lfl.lf1{stroke:#3987e5}.atl .lfl.lf2{stroke:#f59e0b}.atl .lfl.lf3{stroke:#e5534b}
.atl .lfl:hover{stroke-width:7}
.atl .lfl[data-tiph]{pointer-events:stroke}
svg.lf.hide-lf1 .lf1,svg.lf.hide-lf2 .lf2,svg.lf.hide-lf3 .lf3{opacity:.08}
.lfb.on{background:var(--card2);color:var(--txt);border-color:var(--acc)}
.atl .pt{fill:var(--acc);stroke:var(--card-s);stroke-width:2}
.atl .hs:hover .pt{fill:var(--gold);r:9}
.atl .pl{stroke:var(--acc2);stroke-width:2.5}
.atl .pl2{stroke:#3987e5;stroke-width:2;stroke-dasharray:6 4}
.atl .pl3{stroke:#f59e0b;stroke-width:2.5}
.atl line[data-tiph]{cursor:help}
.atl line[data-tiph]:hover{stroke-width:5}
.atl .tooth{fill:var(--card-s);stroke:var(--mut);stroke-width:1.5}
.atl .tooth2{fill:color-mix(in srgb,var(--acc) 16%,var(--card-s));stroke:var(--acc);stroke-width:1.5}
.atl .miss{fill:none;stroke:var(--neg);stroke-width:1.5;stroke-dasharray:3 2}
.atl .grv{stroke:var(--gold);stroke-width:2.5}
.atl .ramus{fill:color-mix(in srgb,var(--mut) 14%,transparent);stroke:none}
.atl .ghost{fill:color-mix(in srgb,var(--acc) 12%,transparent);stroke:var(--acc);stroke-width:1.5;stroke-dasharray:5 4}
.atl .hs:hover .ghost{fill:color-mix(in srgb,var(--gold) 22%,transparent);stroke:var(--gold)}
svg.ken{max-width:220px;margin:auto}
svg.ken>g{cursor:help}
.fdiw{display:flex;flex-direction:column;gap:6px;overflow-x:auto}
.fdirow{display:flex;gap:4px;justify-content:center;align-items:center}
.fdirow i{width:2px;align-self:stretch;background:var(--line2);margin:0 6px}
.fdiw .sep{height:1px;background:var(--line2);margin:6px 0}
.fdi{min-width:36px;padding:7px 0;text-align:center;border-radius:10px;background:var(--card-s);border:1px solid var(--line2);font-weight:800;font-size:13.5px;cursor:help;transition:.15s;font-variant-numeric:tabular-nums}
.fdi.s{color:var(--acc);border-style:dashed}
.fdi:hover{background:var(--gold);color:#111;border-color:var(--gold);transform:translateY(-2px)}
@media (max-width:700px){.fdi{min-width:28px;font-size:12px;padding:5px 0}}
@media (max-width:700px){.atlas-v{overflow-x:auto;padding:10px}.atlas-v>svg.atl{min-width:620px}}