:root{
  --bg:#eef1f7; --panel:#ffffff; --ink:#1e2433; --muted:#6b7385; --line:#e3e7ef;
  --brand:#4f46e5; --brand-d:#3f38c9; --brand-l:#ecebfd;
  --teal:#0d9488; --teal-l:#d5f4f0; --amber:#d97706; --amber-l:#fdf0dc;
  --red:#dc2626; --red-l:#fde2e2; --green:#16a34a; --green-l:#dcf5e4;
  --blue:#2563eb; --blue-l:#dce8fd; --purple:#7c3aed; --purple-l:#ede4fd;
  --radius:14px; --shadow:0 1px 3px rgba(20,25,40,.07),0 8px 24px rgba(20,25,40,.06);
  --shadow-sm:0 1px 2px rgba(20,25,40,.08);
}
*{box-sizing:border-box}
html,body{margin:0;padding:0}
body{font-family:"Segoe UI",system-ui,-apple-system,Roboto,Arial,sans-serif;background:var(--bg);color:var(--ink);font-size:14.5px;line-height:1.5}
a{color:var(--brand);text-decoration:none}
button{font-family:inherit;cursor:pointer}
h1,h2,h3,h4{margin:0;font-weight:700;letter-spacing:-.01em}
.hidden{display:none!important}

/* ---------- AUTH ---------- */
.auth-wrap{min-height:100vh;display:grid;grid-template-columns:1.1fr .9fr}
.auth-hero{background:linear-gradient(135deg,#4f46e5,#7c3aed 60%,#0d9488);color:#fff;padding:64px 56px;display:flex;flex-direction:column;justify-content:center}
.auth-hero h1{font-size:40px;line-height:1.1;margin-bottom:18px}
.auth-hero p{font-size:17px;opacity:.92;max-width:440px}
.auth-hero .feat{margin-top:34px;display:flex;flex-direction:column;gap:14px}
.auth-hero .feat div{display:flex;align-items:center;gap:12px;font-size:15px;opacity:.96}
.auth-hero .feat .ic{width:34px;height:34px;border-radius:9px;background:rgba(255,255,255,.18);display:grid;place-items:center;font-size:17px;flex-shrink:0}
/* Logo yüklendiğinde sol alanda ortalanır, kırpılmadan tam görünür (amblem logolar için ideal) */
.auth-hero.has-logo{padding:0;position:relative;overflow:hidden;background:#fff}
.auth-hero .hero-logo{position:absolute;inset:0;width:100%;height:100%;object-fit:contain;object-position:center;padding:5%}
.auth-form{display:flex;align-items:center;justify-content:center;padding:40px}
.auth-card{width:100%;max-width:380px}
.auth-card h2{font-size:24px;margin-bottom:6px}
.auth-card .sub{color:var(--muted);margin-bottom:26px}
.auth-tabs{display:flex;background:var(--bg);border-radius:10px;padding:4px;margin-bottom:22px}
.auth-tabs button{flex:1;border:0;background:transparent;padding:9px;border-radius:8px;font-weight:600;color:var(--muted)}
.auth-tabs button.on{background:var(--panel);color:var(--brand);box-shadow:var(--shadow-sm)}
@media(max-width:860px){.auth-wrap{grid-template-columns:1fr}.auth-hero{display:none}}

/* ---------- FORM ---------- */
label{display:block;font-size:13px;font-weight:600;color:var(--muted);margin:0 0 6px}
input,select,textarea{width:100%;padding:10px 12px;border:1.5px solid var(--line);border-radius:10px;background:#fff;font-size:14.5px;color:var(--ink);transition:border .15s}
input:focus,select:focus,textarea:focus{outline:none;border-color:var(--brand);box-shadow:0 0 0 3px var(--brand-l)}
textarea{resize:vertical;min-height:72px}
.field{margin-bottom:15px}
.row{display:grid;gap:14px}
.row.c2{grid-template-columns:1fr 1fr}.row.c3{grid-template-columns:1fr 1fr 1fr}.row.c4{grid-template-columns:repeat(4,1fr)}
@media(max-width:680px){.row.c2,.row.c3,.row.c4{grid-template-columns:1fr}}

/* ---------- BUTTON ---------- */
.btn{display:inline-flex;align-items:center;gap:7px;border:0;background:var(--brand);color:#fff;padding:10px 16px;border-radius:10px;font-weight:600;font-size:14px;transition:.15s}
.btn:hover{background:var(--brand-d)}
.btn.block{width:100%;justify-content:center;padding:12px}
.btn.sec{background:var(--panel);color:var(--ink);border:1.5px solid var(--line)}
.btn.sec:hover{background:var(--bg)}
.btn.teal{background:var(--teal)}.btn.teal:hover{filter:brightness(.94)}
.btn.danger{background:var(--red)}.btn.ghost{background:transparent;color:var(--muted);padding:6px 10px}
.btn.ghost:hover{background:var(--bg);color:var(--ink)}
.btn.sm{padding:6px 11px;font-size:13px;border-radius:8px}
.btn.icon{padding:7px;border-radius:8px}
.btn[disabled]{opacity:.5;cursor:not-allowed}

/* ---------- LAYOUT ---------- */
.shell{display:grid;grid-template-columns:250px 1fr;min-height:100vh}
.side{background:#171b2e;color:#c9cee0;padding:20px 14px;display:flex;flex-direction:column;position:sticky;top:0;height:100vh}
.side .logo{display:flex;align-items:center;gap:10px;padding:6px 10px 20px;font-size:18px;font-weight:800;color:#fff}
.side .logo .em{font-size:24px}
.side .nav{display:flex;flex-direction:column;gap:3px;flex:1;overflow:auto}
.side .nav a{display:flex;align-items:center;gap:11px;padding:10px 12px;border-radius:10px;color:#c9cee0;font-weight:500;font-size:14px}
.side .nav a:hover{background:rgba(255,255,255,.06);color:#fff}
.side .nav a.on{background:var(--brand);color:#fff}
.side .nav .ic{width:20px;text-align:center;font-size:16px}
.subnav{display:flex;flex-direction:column;gap:2px;margin-top:8px;padding-top:10px;border-top:1px solid rgba(255,255,255,.1)}
.subnav-h{font-size:11px;text-transform:uppercase;letter-spacing:.04em;color:#8b93ad;font-weight:700;padding:2px 12px 8px}
.subnav a{display:block;padding:9px 12px;border-radius:9px;color:#c9cee0;font-weight:500;font-size:13.5px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.subnav a:hover{background:rgba(255,255,255,.06);color:#fff}
.subnav a.on{background:var(--brand);color:#fff}
.side .who{border-top:1px solid rgba(255,255,255,.1);padding-top:14px;margin-top:10px}
.side .who .nm{color:#fff;font-weight:600;font-size:14px}
.side .who .rl{font-size:12px;color:#8b93ad;margin-bottom:10px}
.main{padding:26px 30px;max-width:1240px;width:100%}
.topbar{display:flex;align-items:center;justify-content:space-between;margin-bottom:22px;gap:16px;flex-wrap:wrap}
.topbar h1{font-size:23px}
.topbar .crumb{color:var(--muted);font-size:13px;margin-bottom:3px}
@media(max-width:820px){.shell{grid-template-columns:1fr}.side{position:static;height:auto;flex-direction:row;flex-wrap:wrap;align-items:center}.side .nav{flex-direction:row;flex-wrap:wrap}.side .who{border:0;padding:0;margin:0}.main{padding:18px}}

/* ---------- CARDS ---------- */
.card{background:var(--panel);border-radius:var(--radius);box-shadow:var(--shadow);padding:20px}
.card+.card{margin-top:18px}
.card h3{font-size:16px;margin-bottom:14px;display:flex;align-items:center;gap:8px}
.grid{display:grid;gap:16px}
.grid.k4{grid-template-columns:repeat(4,1fr)}.grid.k3{grid-template-columns:repeat(3,1fr)}.grid.k2{grid-template-columns:repeat(2,1fr)}
@media(max-width:980px){.grid.k4{grid-template-columns:repeat(2,1fr)}}
@media(max-width:680px){.grid.k4,.grid.k3,.grid.k2{grid-template-columns:1fr}}

.stat{background:var(--panel);border-radius:var(--radius);box-shadow:var(--shadow);padding:16px 18px;display:flex;flex-direction:column;gap:2px;position:relative;overflow:hidden}
.stat .lbl{font-size:12.5px;color:var(--muted);font-weight:600;text-transform:uppercase;letter-spacing:.02em}
.stat .val{font-size:29px;font-weight:800;line-height:1.1}
.stat .sub{font-size:12.5px;color:var(--muted)}
.stat .em{position:absolute;right:14px;top:14px;font-size:22px;opacity:.85}
.stat.b{border-left:4px solid var(--brand)}.stat.t{border-left:4px solid var(--teal)}
.stat.a{border-left:4px solid var(--amber)}.stat.g{border-left:4px solid var(--green)}
.stat.p{border-left:4px solid var(--purple)}.stat.bl{border-left:4px solid var(--blue)}

/* ---------- STUDENT CARDS ---------- */
.stu-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(280px,1fr));gap:16px}
.stu{background:var(--panel);border-radius:var(--radius);box-shadow:var(--shadow);padding:18px;cursor:pointer;transition:.15s;border:1.5px solid transparent}
.stu:hover{transform:translateY(-2px);border-color:var(--brand-l);box-shadow:0 8px 28px rgba(79,70,229,.14)}
.stu .top{display:flex;align-items:center;gap:12px;margin-bottom:14px}
.avatar{width:46px;height:46px;border-radius:12px;display:grid;place-items:center;font-weight:800;color:#fff;font-size:18px;flex-shrink:0}
.stu .nm{font-weight:700;font-size:16px}
.stu .tr{font-size:12.5px;color:var(--muted)}
.stu .bars{display:flex;flex-direction:column;gap:9px;margin-top:6px}
.mini{display:flex;justify-content:space-between;font-size:12px;color:var(--muted);margin-bottom:3px}
.bar{height:7px;background:var(--bg);border-radius:6px;overflow:hidden}
.bar>span{display:block;height:100%;border-radius:6px;background:var(--brand)}
.stu .chips{display:flex;gap:6px;margin-top:12px;flex-wrap:wrap}
.login-act{margin-top:11px;padding-top:10px;border-top:1px solid var(--line);display:flex;flex-direction:column;gap:5px;font-size:12px;color:var(--muted)}
.login-act b{color:var(--ink);font-weight:600}
.ldot{display:inline-block;width:8px;height:8px;border-radius:50%;background:#cbd2e0;margin-right:5px;vertical-align:middle}
.ldot.on{background:var(--green);box-shadow:0 0 0 3px var(--green-l)}

/* ---------- AYLIK RAPOR ---------- */
.report-doc .rep-head{display:flex;gap:14px;align-items:center;border-bottom:2px solid var(--brand);padding-bottom:12px;margin-bottom:14px}
.report-doc .rep-h{margin:20px 0 8px;font-size:14px;color:var(--brand-d);border-left:4px solid var(--brand);padding-left:9px;text-transform:uppercase;letter-spacing:.02em}
.report-doc table{width:100%;border-collapse:collapse;margin-bottom:6px;font-size:12.5px}
.report-doc th,.report-doc td{border:1px solid var(--line);padding:6px 9px;text-align:left;vertical-align:top}
.report-doc th{background:var(--bg);font-weight:700;color:var(--muted);white-space:nowrap}
.report-doc .rep-info{max-width:640px}
.report-doc .rep-tbl{overflow-x:auto;display:block}
@media(max-width:700px){.report-doc .rep-tbl{white-space:nowrap}}

/* ---------- BADGES ---------- */
.badge{display:inline-flex;align-items:center;gap:5px;padding:3px 9px;border-radius:20px;font-size:12px;font-weight:600;background:var(--bg);color:var(--muted)}
.badge.b{background:var(--brand-l);color:var(--brand-d)}.badge.t{background:var(--teal-l);color:var(--teal)}
.badge.g{background:var(--green-l);color:var(--green)}.badge.a{background:var(--amber-l);color:var(--amber)}
.badge.r{background:var(--red-l);color:var(--red)}.badge.bl{background:var(--blue-l);color:var(--blue)}.badge.p{background:var(--purple-l);color:var(--purple)}

/* ---------- TABS ---------- */
.tabs{display:flex;gap:4px;border-bottom:2px solid var(--line);margin-bottom:20px;overflow-x:auto}
.tabs button{border:0;background:transparent;padding:11px 15px;font-weight:600;font-size:14px;color:var(--muted);border-bottom:2px solid transparent;margin-bottom:-2px;white-space:nowrap}
.tabs button:hover{color:var(--ink)}
.tabs button.on{color:var(--brand);border-color:var(--brand)}

/* ---------- TABLE ---------- */
.tbl-wrap{overflow-x:auto;border-radius:12px;border:1px solid var(--line)}
table{width:100%;border-collapse:collapse;font-size:13.5px;background:var(--panel)}
th{background:var(--bg);text-align:left;padding:10px 12px;font-size:12px;text-transform:uppercase;letter-spacing:.02em;color:var(--muted);font-weight:700;white-space:nowrap}
td{padding:10px 12px;border-top:1px solid var(--line);vertical-align:middle}
tbody tr:hover{background:#fafbff}
td.num,th.num{text-align:center}

/* ---------- KONU TAKİBİ ---------- */
.subj-acc{border:1px solid var(--line);border-radius:12px;overflow:hidden;margin-bottom:12px;background:var(--panel)}
.subj-head{display:flex;align-items:center;gap:14px;padding:14px 16px;cursor:pointer;user-select:none}
.subj-head:hover{background:var(--bg)}
.subj-head .nm{font-weight:700;font-size:15px;flex:1}
.subj-head .pct{font-size:13px;color:var(--muted);font-weight:600}
.subj-head .bar{width:120px}
.subj-body{padding:4px 16px 14px;border-top:1px solid var(--line)}
.unit-h{font-size:12px;font-weight:700;color:var(--brand-d);text-transform:uppercase;letter-spacing:.03em;margin:14px 0 6px;padding-top:6px}
.topic-row{display:flex;align-items:center;gap:10px;padding:7px 6px;border-radius:8px}
.topic-row:hover{background:var(--bg)}
.topic-row .tname{flex:1;font-size:13.5px}
.topic-row.done .tname{color:var(--muted)}
.chk{width:20px;height:20px;border:2px solid var(--line);border-radius:6px;display:grid;place-items:center;cursor:pointer;flex-shrink:0;background:#fff;transition:.12s}
.chk.on{background:var(--green);border-color:var(--green);color:#fff}
.comp{display:flex;gap:2px}
.comp .dot{width:15px;height:15px;border-radius:50%;background:var(--bg);border:1.5px solid var(--line);cursor:pointer}
.comp .dot.on{background:var(--amber);border-color:var(--amber)}
.rev{font-size:11px;padding:2px 8px;border-radius:12px;border:1.5px solid var(--line);background:#fff;color:var(--muted);cursor:pointer}
.rev.on{background:var(--red-l);border-color:var(--red);color:var(--red)}

/* ---------- CHARTS ---------- */
.chart{width:100%;overflow-x:auto}
svg.chart-svg{display:block}
.legend{display:flex;flex-wrap:wrap;gap:12px;margin-top:10px;font-size:12.5px;color:var(--muted)}
.legend span{display:inline-flex;align-items:center;gap:6px}
.legend i{width:11px;height:11px;border-radius:3px;display:inline-block}

/* ---------- MODAL ---------- */
.modal-bg{position:fixed;inset:0;background:rgba(15,20,35,.5);display:grid;place-items:center;z-index:60;padding:20px;animation:fade .15s}
.modal{background:var(--panel);border-radius:16px;box-shadow:0 20px 60px rgba(0,0,0,.3);width:100%;max-width:560px;max-height:90vh;overflow:auto;animation:pop .18s}
.modal.lg{max-width:820px}
.modal-h{display:flex;align-items:center;justify-content:space-between;padding:18px 22px;border-bottom:1px solid var(--line);position:sticky;top:0;background:var(--panel);z-index:2}
.modal-h h3{font-size:18px}
.modal-b{padding:22px}
.modal-f{padding:16px 22px;border-top:1px solid var(--line);display:flex;justify-content:flex-end;gap:10px;position:sticky;bottom:0;background:var(--panel)}
@keyframes fade{from{opacity:0}}@keyframes pop{from{transform:scale(.96);opacity:0}}

/* ---------- TOAST ---------- */
#toast-root{position:fixed;top:18px;right:18px;z-index:80;display:flex;flex-direction:column;gap:10px}
.toast{background:#171b2e;color:#fff;padding:12px 18px;border-radius:11px;box-shadow:0 8px 30px rgba(0,0,0,.25);font-weight:500;font-size:14px;animation:slide .2s;max-width:340px}
.toast.ok{background:var(--green)}.toast.err{background:var(--red)}
@keyframes slide{from{transform:translateX(30px);opacity:0}}

/* ---------- MISC ---------- */
.empty{text-align:center;padding:44px 20px;color:var(--muted)}
.empty .em{font-size:42px;display:block;margin-bottom:10px}
.hd-row{display:flex;align-items:center;justify-content:space-between;gap:14px;margin-bottom:16px;flex-wrap:wrap}
.hd-row h2{font-size:19px}
.pill-row{display:flex;gap:8px;flex-wrap:wrap;margin-bottom:16px}
.pill{padding:7px 13px;border-radius:20px;border:1.5px solid var(--line);background:#fff;font-size:13px;font-weight:600;color:var(--muted);cursor:pointer}
.pill.on{background:var(--brand);border-color:var(--brand);color:#fff}
.kv{display:grid;grid-template-columns:150px 1fr;gap:8px 14px;font-size:14px}
.kv .k{color:var(--muted);font-weight:600}
.kv .v{color:var(--ink)}
.spinner{width:34px;height:34px;border:3px solid var(--line);border-top-color:var(--brand);border-radius:50%;animation:spin .8s linear infinite;margin:60px auto}
@keyframes spin{to{transform:rotate(360deg)}}
.note-box{background:var(--bg);border-radius:10px;padding:12px 14px;font-size:13.5px;white-space:pre-wrap}
.week-grid{display:grid;grid-template-columns:repeat(7,1fr);gap:8px}
@media(max-width:900px){.week-grid{grid-template-columns:1fr}}
.day{background:var(--bg);border-radius:10px;padding:10px;min-height:90px}
.day .dh{font-size:12px;font-weight:700;color:var(--muted);margin-bottom:7px;display:flex;justify-content:space-between}
.tk{background:#fff;border:1px solid var(--line);border-radius:8px;padding:7px 8px;font-size:12.5px;margin-bottom:6px;display:flex;gap:7px;align-items:flex-start}
.tk.done{opacity:.6}.tk.done .tkt{text-decoration:line-through}
.tk .tkt{flex:1}.tk .tks{font-size:11px;color:var(--muted)}
.stars{color:var(--amber);letter-spacing:1px}
.print-only{display:none}

/* ---------- SAAT IZGARASI ---------- */
.hour-grid{display:grid;grid-template-columns:64px repeat(7,minmax(120px,1fr));min-width:900px}
.hg-corner{background:var(--bg);padding:8px;font-size:11px;font-weight:700;color:var(--muted);position:sticky;left:0;z-index:2;border-bottom:1px solid var(--line);display:grid;place-items:center}
.hg-dh{background:var(--bg);padding:8px 6px;text-align:center;font-size:12px;font-weight:700;border-bottom:1px solid var(--line);border-left:1px solid var(--line)}
.hg-dh span{display:block;font-size:10px;color:var(--muted);font-weight:500}
.hg-hour{background:var(--bg);padding:6px;font-size:11px;font-weight:600;color:var(--muted);position:sticky;left:0;z-index:1;border-bottom:1px solid var(--line);display:grid;place-items:center}
.hg-cell{min-height:40px;border-bottom:1px solid var(--line);border-left:1px solid var(--line);padding:3px;cursor:pointer;transition:background .1s}
.hg-cell:hover{background:#fafbff}
.hg-cell .tk{margin-bottom:3px}
.qa-row{display:grid;grid-template-columns:70px 1.4fr 90px 1.4fr 1.6fr auto;gap:8px;align-items:center;margin-bottom:8px}
.qa-row input,.qa-row select{padding:7px 8px}

/* ---------- BİLDİRİMLER ---------- */
.notif-badge{display:none;min-width:18px;height:18px;padding:0 5px;border-radius:10px;background:var(--red);color:#fff;font-size:11px;font-weight:700;place-items:center;vertical-align:middle}
.side .who .btn[data-bell]{position:relative}
.notif-list{max-height:60vh;overflow:auto;margin:-6px -4px}
.notif-item{padding:12px 14px;border-radius:10px;cursor:pointer;border:1px solid var(--line);margin-bottom:8px;background:var(--panel);transition:.12s}
.notif-item:hover{background:var(--bg)}
.notif-item.unread{border-left:4px solid var(--brand);background:var(--brand-l)}
.notif-item .msg{font-size:13.5px;color:var(--ink)}
.notif-item .t{font-size:11.5px;color:var(--muted);margin-top:4px}
@media(max-width:760px){.qa-row{grid-template-columns:1fr 1fr}}