:root{
  --paper:#F3F5F8; --paper-2:#E7EBF1; --card:#FFFFFF; --grid:#D3DAE4; --grid-soft:#E4E9F0;
  --ink:#15233F; --ink-2:#4A5772; --ink-3:#8791A4;
  --accent:#2E4A7D; --accent-2:#4F6D9F; --accent-soft:#DFE7F3;
  --red:#B5453A; --red-soft:#F3DEDB;
  --green:#2E6B4F; --green-soft:#DCEBE2;
  --yellow:#BCCDE8; --yellow-soft:#E8EEF7;
  --blue:#2F6DB5; --blue-soft:#DCE8F6;
  --orange:#C47A2A; --orange-soft:#F8E9D6;
  --radius:12px; --maxw:1140px;
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth;scroll-padding-top:84px}
body{
  background:var(--paper);
  color:var(--ink);font-family:'Manrope',system-ui,sans-serif;line-height:1.55;
  -webkit-font-smoothing:antialiased;
}
a{color:inherit;text-decoration:none}
img,svg{max-width:100%}
.wrap{max-width:var(--maxw);margin:0 auto;padding:0 24px}
.display,h1,h2,h3.display{font-family:'Fraunces',Georgia,serif}
.hand{font-family:'Caveat',cursive}
.skip{position:absolute;left:-999px;top:8px;background:var(--ink);color:#fff;padding:8px 14px;border-radius:8px;z-index:100}
.skip:focus{left:8px}
:focus-visible{outline:3px solid var(--blue);outline-offset:2px;border-radius:4px}
.inline{display:inline}

/* ---------- Header ---------- */
.site-header{position:sticky;top:0;z-index:50;background:rgba(243,245,248,.92);backdrop-filter:blur(8px);border-bottom:1px solid var(--grid)}
.nav{display:flex;align-items:center;justify-content:space-between;gap:16px;padding-top:14px;padding-bottom:14px}
.logo{display:flex;align-items:center;gap:9px;font-family:'Fraunces',serif;font-weight:600;font-size:20px;white-space:nowrap}
.logo .dot{color:var(--accent-2)}
.logo-mark{display:block;width:34px;height:34px;border-radius:9px;flex:none}
.menu{display:flex;align-items:center;gap:22px;font-size:15px;font-weight:600;color:var(--ink-2)}
.menu a:not(.btn):hover,.menu a.active{color:var(--ink)}
.menu a.active{box-shadow:0 2px 0 var(--accent-2)}
.menu .who{font-size:13px;color:var(--ink-3);font-weight:700}
.menu-btn{display:none;background:none;border:1.5px solid var(--ink);border-radius:9px;width:44px;height:44px;cursor:pointer;flex-direction:column;align-items:center;justify-content:center;gap:5px}
.menu-btn span{display:block;width:20px;height:2px;background:var(--ink);transition:transform .2s,opacity .2s}
.menu-btn[aria-expanded="true"] span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.menu-btn[aria-expanded="true"] span:nth-child(2){opacity:0}
.menu-btn[aria-expanded="true"] span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}

/* ---------- Buttons ---------- */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:12px 22px;border-radius:10px;font:700 15px 'Manrope',sans-serif;border:2px solid var(--ink);background:transparent;color:var(--ink);cursor:pointer;transition:transform .15s,box-shadow .15s,background .15s;min-height:46px;text-align:center}
.btn-sm{padding:8px 16px;min-height:40px;font-size:14px}
.btn-primary{background:var(--accent);border-color:var(--accent);color:#fff}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 5px 0 var(--ink)}
.btn-ghost:hover{background:var(--ink);color:#fff}
.btn-green{background:var(--green);border-color:var(--green);color:#fff}
.btn-green:hover{transform:translateY(-2px);box-shadow:0 5px 0 var(--ink)}
.btn-wa{background:#1FA855;border-color:#1FA855;color:#fff}
.btn-wa:hover{transform:translateY(-2px);box-shadow:0 5px 0 var(--ink)}
.btn-danger{border-color:var(--red);color:var(--red)}
.btn-danger:hover{background:var(--red);color:#fff}
.btn-lg{padding:15px 28px;font-size:16px;min-height:54px}

/* ---------- Hero ---------- */
.hero{padding:72px 0 56px}
.hero-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:48px;align-items:center}
.eyebrow{display:inline-flex;align-items:center;gap:8px;font:700 13px 'Manrope',sans-serif;letter-spacing:.08em;text-transform:uppercase;color:var(--accent-2);margin-bottom:16px}
.eyebrow::before{content:"";width:9px;height:9px;border-radius:50%;background:currentColor}
h1{font-size:clamp(34px,5.2vw,54px);line-height:1.07;font-weight:600;letter-spacing:-.015em;margin-bottom:20px}
.mark{background:linear-gradient(transparent 60%,#C9D7EC 60% 92%,transparent 92%);padding:0 4px}
.lead{font-size:18px;color:var(--ink-2);max-width:500px;margin-bottom:28px}
.actions{display:flex;flex-wrap:wrap;gap:12px;margin-bottom:26px}
.chips{display:flex;flex-wrap:wrap;gap:8px}
.chip{display:inline-flex;align-items:center;padding:6px 14px;border-radius:99px;background:var(--card);border:1.5px solid var(--ink);font-weight:700;font-size:14px}
.chip.hot{background:var(--yellow)}
.note{font-size:14px;color:var(--ink-3);margin-top:16px}

/* Örnek panel kartı */
.demo{background:var(--card);border:2px solid var(--ink);border-radius:var(--radius);padding:22px;box-shadow:6px 6px 0 var(--grid);position:relative}
.demo-tag{position:absolute;top:-14px;right:18px;background:var(--yellow);border:2px solid var(--ink);border-radius:8px;padding:2px 12px;font:700 20px 'Caveat',cursive;transform:rotate(3deg)}
.demo-top{display:flex;justify-content:space-between;gap:8px;font-size:13px;color:var(--ink-3);font-weight:700;margin-bottom:12px}
.demo-top b{color:var(--ink)}
.demo-line{stroke:var(--ink);stroke-width:3;fill:none;stroke-linecap:round;stroke-linejoin:round;stroke-dasharray:700;stroke-dashoffset:700;animation:draw 1.8s ease forwards .3s}
@keyframes draw{to{stroke-dashoffset:0}}
.demo-lesson{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-top:14px;padding:12px 14px;border-radius:10px;background:var(--green-soft);border:1.5px solid var(--green)}
.demo-lesson small{display:block;color:var(--ink-2);font-weight:600}
.demo-lesson span.fake-btn{background:var(--green);color:#fff;border-radius:8px;padding:8px 14px;font-weight:800;font-size:14px;white-space:nowrap}

/* ---------- Sections ---------- */
section.s{padding:80px 0}
.s-alt{background:var(--paper-2)}
.s-head{max-width:620px;margin-bottom:44px}
h2{font-size:clamp(28px,3.6vw,38px);line-height:1.15;font-weight:600;letter-spacing:-.01em;margin-bottom:12px}
.s-head p{color:var(--ink-2);font-size:17px}

.grades{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}
.grade{background:var(--card);border:2px solid var(--ink);border-radius:var(--radius);padding:24px 20px;position:relative;transition:transform .15s,box-shadow .15s}
.grade:hover{transform:translateY(-4px);box-shadow:6px 6px 0 var(--grid)}
.grade .num{font:600 56px/1 'Fraunces',serif;color:var(--accent-2);display:block;margin-bottom:6px}
.grade h3{font-size:18px;margin-bottom:8px}
.grade p{font-size:14.5px;color:var(--ink-2)}
.grade.lgs{background:var(--ink);color:#fff}
.grade.lgs p{color:#C9D2E4}
.grade.lgs .num{color:#BCCDE8}
.grade .badge{position:absolute;top:-12px;right:14px;background:var(--yellow);color:var(--ink);border:2px solid var(--ink);border-radius:8px;padding:1px 10px;font:700 13px 'Manrope'}

.steps{display:grid;grid-template-columns:repeat(4,1fr);border-top:2px solid var(--ink)}
.step{padding:26px 22px 0 0}
.step .n{font:600 15px 'Fraunces',serif;color:var(--accent-2);display:block;margin-bottom:10px}
.step h3{font:600 20px 'Fraunces',serif;margin-bottom:8px}
.step p{font-size:15px;color:var(--ink-2)}

.feats{display:grid;grid-template-columns:repeat(3,1fr);gap:1px;background:var(--grid);border:1px solid var(--grid);border-radius:var(--radius);overflow:hidden}
.feat{background:var(--card);padding:26px 24px}
.feat .ic{width:44px;height:44px;border-radius:11px;border:2px solid var(--ink);display:grid;place-items:center;font-size:22px;margin-bottom:14px;background:var(--accent-soft)}
.feat h3{font-size:17px;margin-bottom:6px}
.feat p{font-size:14.5px;color:var(--ink-2)}

.teacher{display:grid;grid-template-columns:220px 1fr;gap:44px;align-items:center}
.t-photo{width:220px;height:220px;border-radius:50%;border:2px solid var(--ink);background:var(--grid-soft);display:grid;place-items:center;text-align:center;font-size:13px;color:var(--ink-3);overflow:hidden;box-shadow:6px 6px 0 var(--yellow)}
.t-photo img{width:100%;height:100%;object-fit:cover}
blockquote{font:500 clamp(20px,2.6vw,26px)/1.4 'Fraunces',serif;margin-bottom:16px}
.t-name{font-weight:800}
.t-role{color:var(--ink-2);font-size:14.5px}

.faq{max-width:760px}
details{background:var(--card);border:2px solid var(--ink);border-radius:12px;padding:0 20px;margin-bottom:12px}
summary{cursor:pointer;font-weight:700;padding:16px 0;list-style:none;display:flex;justify-content:space-between;gap:16px;align-items:center}
summary::-webkit-details-marker{display:none}
summary::after{content:"+";font:700 24px 'Manrope';color:var(--accent-2);flex:none}
details[open] summary::after{content:"–"}
details p{padding:0 0 16px;color:var(--ink-2)}

.cta{background:var(--ink);color:#fff;border-radius:22px;padding:56px 48px;display:flex;align-items:center;justify-content:space-between;gap:32px;
  background-image:repeating-linear-gradient(0deg,rgba(255,255,255,.06) 0 1px,transparent 1px 32px),repeating-linear-gradient(90deg,rgba(255,255,255,.06) 0 1px,transparent 1px 32px)}
.cta h2{color:#fff}
.cta p{color:#C9D2E4;max-width:460px}
.cta .btn{border-color:#fff}

footer.site-footer{padding:40px 0 48px;border-top:1px solid var(--grid);margin-top:48px}
.foot{display:flex;justify-content:space-between;align-items:center;flex-wrap:wrap;gap:16px}
.foot nav{display:flex;gap:22px;font-size:14px;color:var(--ink-2);flex-wrap:wrap}
.foot nav a:hover{color:var(--ink)}
.copy{font-size:13px;color:var(--ink-3);margin-top:18px}

.wa-float{position:fixed;right:18px;bottom:18px;z-index:40;background:#1FA855;color:#fff;border-radius:99px;padding:13px 20px;font-weight:800;box-shadow:0 6px 18px rgba(0,0,0,.25);display:none;align-items:center;gap:8px}

/* ---------- Giriş / formlar ---------- */
.auth{min-height:calc(100vh - 140px);display:grid;place-items:center;padding:40px 16px}
.card{background:var(--card);border:2px solid var(--ink);border-radius:var(--radius);padding:28px;box-shadow:6px 6px 0 var(--grid)}
.auth .card{width:100%;max-width:420px}
.auth h1{font-size:30px;margin-bottom:6px}
.auth p.sub{color:var(--ink-2);margin-bottom:20px}
label{display:block;font-weight:700;font-size:14px;margin-bottom:6px}
.field{margin-bottom:16px}
input[type=text],input[type=password],input[type=number],input[type=date],input[type=time],input[type=url],input[type=tel],select,textarea{
  width:100%;padding:11px 13px;border:2px solid var(--ink);border-radius:10px;background:#fff;color:var(--ink);font:500 16px 'Manrope',sans-serif;min-height:46px}
textarea{min-height:90px;resize:vertical}
input:focus,select:focus,textarea:focus{outline:3px solid var(--blue-soft);border-color:var(--blue)}
.hint{font-size:13px;color:var(--ink-3);margin-top:5px}
.flash{padding:12px 16px;border-radius:10px;margin-bottom:16px;font-weight:600;border:2px solid}
.flash-ok{background:var(--green-soft);border-color:var(--green);color:var(--green)}
.flash-err{background:var(--red-soft);border-color:var(--red);color:var(--red)}
.flash-info{background:var(--blue-soft);border-color:var(--blue);color:var(--blue)}
.back{display:inline-block;margin-top:18px;font-size:14px;color:var(--ink-2);font-weight:600}

/* ---------- Panel sayfaları ---------- */
.page{padding:36px 0 72px}
.page h1{font-size:clamp(26px,3.4vw,34px);margin-bottom:6px}
.page .sub{color:var(--ink-2);margin-bottom:26px}
.grid{display:grid;gap:20px}
.g2{grid-template-columns:1fr 1fr}
.g3{grid-template-columns:repeat(3,1fr)}
.g-main{grid-template-columns:1.6fr 1fr}
.panel{background:var(--card);border:2px solid var(--ink);border-radius:var(--radius);padding:22px}
.panel h2{font:600 21px 'Fraunces',serif;margin-bottom:14px;display:flex;align-items:center;justify-content:space-between;gap:10px}
.panel h3{font-size:16px;margin:14px 0 8px}
.stat{display:flex;flex-direction:column;gap:2px}
.stat b{font:600 38px/1.1 'Fraunces',serif}
.stat span{font-size:13px;color:var(--ink-2);font-weight:700}
.empty{color:var(--ink-3);font-size:15px;padding:6px 0}
.muted{color:var(--ink-2)}
.small{font-size:13px}
.right{text-align:right}
.nowrap{white-space:nowrap}

.ann{border-left:5px solid var(--accent-2);background:var(--accent-soft);padding:12px 14px;border-radius:0 10px 10px 0;margin-bottom:10px}
.ann b{display:block}
.ann small{color:var(--ink-3)}

.lesson{display:flex;align-items:center;justify-content:space-between;gap:14px;padding:14px 16px;border:2px solid var(--grid);border-radius:12px;margin-bottom:10px;background:#fff}
.lesson.live{border-color:var(--green);background:var(--green-soft)}
.lesson h3{margin:0;font-size:16px}
.lesson small{color:var(--ink-2);font-weight:600;display:block}
.lesson .count{font:700 13px 'Manrope';color:var(--green)}
.next{border:2px solid var(--ink);background:var(--ink);color:#fff;border-radius:var(--radius);padding:24px;display:flex;align-items:center;justify-content:space-between;gap:18px;margin-bottom:20px;
  background-image:repeating-linear-gradient(0deg,rgba(255,255,255,.06) 0 1px,transparent 1px 32px),repeating-linear-gradient(90deg,rgba(255,255,255,.06) 0 1px,transparent 1px 32px)}
.next small{color:#C9D2E4;font-weight:700;letter-spacing:.06em;text-transform:uppercase;font-size:12px}
.next h2{color:#fff;margin:4px 0;font-size:24px}
.next p{color:#C9D2E4;font-size:14.5px}
.next .btn{border-color:#fff}
.next.is-live{background-color:var(--green)}

.progress-wrap{display:flex;align-items:center;gap:20px;margin-bottom:14px}
.ring{width:110px;height:110px;flex:none}
.ring-bg{fill:none;stroke:var(--grid-soft);stroke-width:12}
.ring-fg{fill:none;stroke:var(--green);stroke-width:12;stroke-linecap:round}
.ring-t{font:700 24px 'Fraunces',serif;fill:var(--ink)}
.cat{font:800 12px 'Manrope';letter-spacing:.07em;text-transform:uppercase;color:var(--ink-3);margin:16px 0 8px}
.topics{display:grid;grid-template-columns:repeat(auto-fill,minmax(210px,1fr));gap:8px}
.topic{display:flex;align-items:center;gap:10px;padding:9px 12px;border:2px solid var(--grid);border-radius:10px;background:#fff;font-size:14px;font-weight:600}
.dot-s{width:14px;height:14px;border-radius:50%;flex:none;border:2px solid var(--ink-3);background:#fff}
.s0 .dot-s{border-color:var(--ink-3)}
.s1 .dot-s{border-color:var(--orange);background:var(--orange)}
.s2 .dot-s{border-color:var(--green);background:var(--green)}
.s3 .dot-s{border-color:var(--red);background:var(--red)}
.topic.s2{background:var(--green-soft);border-color:var(--green)}
.topic.s1{background:var(--orange-soft);border-color:var(--orange)}
.topic.s3{background:var(--red-soft);border-color:var(--red)}
.legend{display:flex;flex-wrap:wrap;gap:14px;font-size:13px;font-weight:600;color:var(--ink-2);margin-top:12px}
.legend span{display:inline-flex;align-items:center;gap:6px}

.net-chart{width:100%;height:auto}
.net-chart .gl{stroke:var(--grid);stroke-width:1}
.net-chart .ax{font:600 11px 'Manrope';fill:var(--ink-3)}
.net-chart .ln{fill:none;stroke:var(--ink);stroke-width:3;stroke-linejoin:round;stroke-linecap:round}
.net-chart .pt{fill:var(--accent);stroke:#fff;stroke-width:2}
.net-chart .vl{font:800 12px 'Manrope';fill:var(--ink)}

table.t{width:100%;border-collapse:collapse;font-size:14.5px}
table.t th{text-align:left;font-size:12px;letter-spacing:.05em;text-transform:uppercase;color:var(--ink-3);padding:8px 10px;border-bottom:2px solid var(--ink)}
table.t td{padding:10px;border-bottom:1px solid var(--grid);vertical-align:middle}
.scroll{overflow-x:auto}
.pill{display:inline-block;padding:2px 10px;border-radius:99px;font-size:12px;font-weight:800;border:1.5px solid}
.pill-ok{background:var(--green-soft);border-color:var(--green);color:var(--green)}
.pill-wait{background:var(--yellow-soft);border-color:var(--orange);color:var(--orange)}
.pill-late{background:var(--red-soft);border-color:var(--red);color:var(--red)}

.hw{display:flex;align-items:flex-start;justify-content:space-between;gap:12px;padding:12px 14px;border:2px solid var(--grid);border-radius:12px;margin-bottom:10px;background:#fff}
.hw.done{background:var(--green-soft);border-color:var(--green)}
.hw.done h3{text-decoration:line-through;color:var(--ink-2)}
.hw h3{margin:0;font-size:15.5px}

.form-row{display:grid;grid-template-columns:repeat(auto-fit,minmax(170px,1fr));gap:14px}
.cred{background:var(--yellow-soft);border:2px dashed var(--orange);border-radius:12px;padding:14px 16px;margin-bottom:18px}
.cred code{font:700 17px ui-monospace,Menlo,Consolas,monospace;background:#fff;padding:2px 8px;border-radius:6px;border:1px solid var(--grid)}
select.mini{min-height:38px;padding:6px 10px;font-size:14px}
.sticky-save{position:sticky;bottom:12px;margin-top:16px;display:flex;justify-content:flex-end}
.tabs-nav{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:20px}
.tabs-nav a{padding:8px 16px;border:2px solid var(--ink);border-radius:99px;font-weight:700;font-size:14px;background:var(--card)}
.tabs-nav a:hover{background:var(--accent);color:#fff}

@media (max-width:960px){
  .hero-grid,.g2,.g3,.g-main,.teacher{grid-template-columns:1fr}
  .grades{grid-template-columns:repeat(2,1fr)}
  .steps{grid-template-columns:repeat(2,1fr)}
  .feats{grid-template-columns:repeat(2,1fr)}
  .teacher{text-align:center;justify-items:center}
  .cta{flex-direction:column;text-align:center;padding:40px 24px}
}
@media (max-width:760px){
  .menu-btn{display:flex}
  .menu{display:none;position:absolute;top:100%;left:0;right:0;background:var(--paper);border-bottom:2px solid var(--ink);flex-direction:column;align-items:stretch;gap:0;padding:8px 24px 18px}
  .menu.open{display:flex}
  .menu a:not(.btn){padding:13px 0;border-bottom:1px solid var(--grid)}
  .menu .btn{margin-top:10px}
  .menu .who{padding:12px 0}
  .menu form .btn{width:100%}
  section.s{padding:56px 0}
  .hero{padding:44px 0 36px}
  .grades,.steps,.feats{grid-template-columns:1fr}
  .next,.lesson{flex-direction:column;align-items:flex-start}
  .next .btn,.lesson .btn{width:100%}
  .wa-float{display:inline-flex}
  .progress-wrap{flex-direction:column;align-items:flex-start}
}
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  .demo-line{animation:none;stroke-dashoffset:0}
  *{transition:none!important}
}