@font-face{font-family:Inter;src:url('../fonts/Inter-Variable.woff2') format('woff2'),url('../fonts/Inter-Variable.ttf') format('truetype');font-weight:100 900;font-display:swap}
:root{--dark:#1c1c1e;--light:#f2f2f7;--c5:#ff8d28;--c6:#0088ff;--c7:#ff2d55;--c8:#00c8b3;--bg:var(--light);--ink:var(--dark);--secondary:color-mix(in srgb,var(--ink) 65%,var(--bg));--surface:color-mix(in srgb,var(--bg) 95%,var(--ink));--line:color-mix(in srgb,var(--ink) 16%,var(--bg));--nav:62px;--ease:cubic-bezier(.16,1,.3,1);color-scheme:light}
@media (prefers-color-scheme: dark){:root{--bg:var(--dark);--ink:var(--light);color-scheme:dark}}*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:var(--nav)}body{margin:0;background:var(--bg);color:var(--ink);font:400 16px/1.55 Inter,-apple-system,BlinkMacSystemFont,sans-serif;-webkit-font-smoothing:antialiased}a{color:inherit;text-decoration:none}button{font:inherit;color:inherit;cursor:pointer}img{display:block;max-width:100%;height:auto}h1,h2,h3,p{margin:0}h1,h2,h3{line-height:1.1;letter-spacing:-.045em;text-wrap:balance;font-weight:650}h1{font-size:clamp(3.2rem,5.5vw,5.4rem);font-weight:700}h2{font-size:clamp(2.4rem,4vw,4rem)}h3{font-size:1.5rem;letter-spacing:-.035em}a:focus-visible,button:focus-visible{outline:3px solid var(--c6);outline-offset:5px}::selection{background:var(--c6);color:var(--light)}.secondary{color:var(--secondary)}.eyebrow{font-size:.9rem;font-weight:550;letter-spacing:.015em;margin-bottom:17px}.site-header{position:fixed;inset:0 0 auto;height:var(--nav);z-index:20;background:color-mix(in srgb,var(--bg) 90%,transparent);backdrop-filter:blur(20px)}.header-inner{max-width:1240px;margin:auto;height:100%;padding:0 35px;display:flex;align-items:center;justify-content:space-between;gap:25px}.brand{width:68px;border-radius:10px;background:var(--light);padding:5px 8px;flex:none}.site-header nav{display:flex;gap:24px}.site-header nav a{font-size:.875rem;color:var(--secondary)}.site-header nav a:hover,.site-header nav a.active{color:var(--accent,var(--ink))}.header-actions{display:flex;gap:5px}.icon-button{display:grid;place-items:center;width:40px;height:40px;border:0;background:transparent;border-radius:50%}.icon-button:hover{background:var(--line)}.icon-button svg{width:19px;height:19px}.menu-button{display:none}main{padding-top:var(--nav)}.screen{min-height:calc(100svh - var(--nav));display:flex;align-items:center;padding:38px 40px;scroll-margin-top:0;position:relative}.screen-inner{width:100%;max-width:1160px;margin:0 auto}.screen:nth-child(even){background:var(--surface)}.section-heading{margin-bottom:30px}.section-heading>p:last-child:not(.eyebrow){max-width:650px;color:var(--secondary);font-size:1.1rem;line-height:1.6;margin-top:20px}.hero{text-align:center;padding-block:25px 30px}.hero-inner{display:flex;flex-direction:column;align-items:center;gap:23px}.hero-cover{width:clamp(310px,44vw,580px);max-width:100%;height:clamp(85px,13svh,140px);border-radius:18px;background:var(--light);overflow:hidden}.hero-cover img{width:100%;height:100%;object-fit:cover;object-position:center}.hero .eyebrow{margin-bottom:12px}.hero-description{color:var(--secondary);font-size:1.12rem;line-height:1.6;margin-top:20px}.hero-choices{width:min(680px,100%)}.hero-choices>p{font-size:.875rem;color:var(--secondary);margin-bottom:12px}.grade-shortcuts{display:grid;grid-template-columns:repeat(4,1fr);gap:12px}.grade-shortcuts a{display:flex;align-items:center;gap:4px;padding:14px 16px;border-radius:13px;background:var(--accent);color:var(--dark);font-size:1rem;font-weight:550;transition:transform .25s}.grade-shortcuts a:hover{transform:translateY(-4px)}.grade-shortcuts a>span{font-size:1.5rem;font-weight:650;line-height:1}.grade-shortcuts b{margin-left:auto;font-weight:400}.hero-note{display:block;margin-top:12px;font-size:.8rem;color:var(--secondary)}.learning-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:20px}.learning-card{background:var(--accent);color:var(--dark);border-radius:24px;padding:27px;display:flex;flex-direction:column;min-height:255px}.card-label{font-size:.75rem;letter-spacing:.045em;font-weight:600;display:block;margin-bottom:24px}.learning-card h3{margin-bottom:14px}.learning-card p{font-size:1rem;line-height:1.55}.card-example{font-size:1.5rem;font-weight:600;letter-spacing:-.04em;margin-top:auto;padding-top:25px;white-space:nowrap}.learning-card small{font-size:.85rem;display:block;margin-top:8px}.grade-screen{background:color-mix(in srgb,var(--accent) 5%,var(--bg))!important}.grade-layout{display:grid;grid-template-columns:1.05fr 1fr;gap:65px;align-items:center}.grade-copy .eyebrow{display:flex;align-items:center;gap:12px}.grade-badge{display:grid;place-items:center;background:var(--accent);color:var(--dark);width:42px;height:42px;border-radius:12px;font-size:1.6rem;font-weight:650}.grade-description{font-size:1.13rem;color:var(--secondary);line-height:1.65;margin-top:22px;max-width:550px}.topic-list{display:flex;flex-wrap:wrap;gap:9px;margin:25px 0}.topic-list span{font-size:.875rem;border:1px solid color-mix(in srgb,var(--accent) 45%,var(--bg));background:color-mix(in srgb,var(--accent) 8%,var(--bg));border-radius:9px;padding:7px 11px}.lesson-button{display:inline-flex;align-items:center;gap:20px;padding:14px 19px;border-radius:12px;background:var(--accent);color:var(--dark);font-weight:550;font-size:.95rem;transition:transform .25s}.lesson-button:hover{transform:translateY(-3px)}.channel-note{font-size:.8rem;color:var(--secondary);margin-top:10px;max-width:380px}.grade-material{display:grid;gap:18px}.example-card{background:var(--accent);color:var(--dark);padding:35px;border-radius:27px}.example-card .card-label{font-size:.75rem;margin-bottom:24px}.example-card h3{font-size:1.9rem;line-height:1.15;margin-bottom:18px}.example-card p{font-size:1.05rem;line-height:1.6}.worked-equation{font-size:clamp(1.5rem,2.5vw,2.3rem);font-weight:650;letter-spacing:-.035em;border-top:1px solid rgb(28 28 30 / 25%);padding-top:22px;margin-top:25px;line-height:1.3}.goal-card{border-radius:22px;background:color-mix(in srgb,var(--accent) 18%,var(--bg));padding:24px 30px}.goal-card h3{font-size:1.1rem;margin-bottom:12px}.goal-card ul{list-style:none;padding:0;margin:0;display:grid;gap:8px;font-size:.95rem}.goal-card li{position:relative;padding-left:20px}.goal-card li:before{content:'✓';position:absolute;left:0;color:var(--ink)}.statement{text-align:center}.statement h2{font-size:clamp(2.5rem,4.4vw,4.3rem)}.statement h2 span{color:var(--dark)}@media (prefers-color-scheme: dark){.statement h2 span{color:var(--c8)}}.statement-note{color:var(--secondary);font-size:1.13rem;margin-top:23px}.progress-cards{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;text-align:left;margin-top:40px}.progress-cards article{background:var(--accent);color:var(--dark);border-radius:22px;padding:28px}.progress-cards h3{font-size:1.25rem;margin-bottom:13px}.progress-cards p{font-size:1rem}.contact-box{text-align:center;background:var(--c8);color:var(--dark);border-radius:30px;padding:55px 35px}.contact h2{font-size:clamp(3rem,5vw,5rem)}.contact-box>p:not(.eyebrow){font-size:1.15rem;margin-top:23px}.mail-button{display:inline-flex;align-items:center;gap:35px;padding:15px 25px;margin-top:27px;background:var(--dark);color:var(--light);border-radius:12px;font-weight:550;transition:transform .25s}.mail-button:hover{transform:translateY(-3px)}.mail-address{display:block;font-size:.875rem;margin-top:14px}.contact footer{display:flex;justify-content:space-between;gap:20px;flex-wrap:wrap;padding-top:30px;font-size:.8rem;color:var(--secondary)}.skip{position:fixed;top:-100px;left:20px;z-index:100;padding:12px 20px;background:var(--ink);color:var(--bg)}.skip:focus{top:10px}
/* Progress is updated from scroll position, never from a page-load timer. */
.js-motion .reveal{opacity:var(--reveal-opacity,1);transform:translate3d(0,var(--reveal-y,0px),0) scale(var(--reveal-scale,1));will-change:transform,opacity}
@media(min-width:1000px) and (max-height:780px){.screen{padding-block:25px}.hero-inner{gap:16px}.hero h1{font-size:3.8rem}.hero-cover{height:90px;width:440px}.hero-description{font-size:1rem;margin-top:14px}.section-heading{margin-bottom:24px}h2{font-size:3rem}.section-heading>p:last-child:not(.eyebrow){margin-top:14px;font-size:1rem}.learning-card{padding:23px;min-height:230px}.card-label{margin-bottom:16px}.card-example{font-size:1.3rem;padding-top:18px}.example-card{padding:28px}.example-card h3{font-size:1.65rem}.example-card p{font-size:1rem}.worked-equation{margin-top:18px;padding-top:17px}.grade-description{font-size:1.03rem;margin-top:18px}.topic-list{margin:18px 0}.goal-card{padding:20px 25px}.statement h2{font-size:3.4rem}.contact-box{padding:40px 30px}}
@media(max-width:1050px){.header-inner{padding-inline:25px;gap:15px}.site-header nav{gap:15px}.site-header nav a{font-size:.8rem}.screen{padding-inline:30px}.grade-layout{gap:35px}.learning-grid{gap:15px}.learning-card{padding:24px}.learning-card h3{font-size:1.4rem}.card-example{font-size:1.25rem}.example-card{padding:28px}.grade-description{font-size:1.05rem}}
@media(max-width:800px){:root{--nav:58px}.site-header nav{display:none;position:absolute;top:58px;left:0;right:0;padding:20px 26px 30px;background:var(--bg);border-bottom:1px solid var(--line)}.site-header nav.open{display:grid;grid-template-columns:1fr 1fr;gap:8px}.site-header nav a{font-size:1rem;padding:9px 0}.menu-button{display:flex;flex-direction:column;gap:6px;align-items:center;justify-content:center}.menu-button span{width:17px;height:1px;background:currentColor;transition:transform .2s}.menu-button[aria-expanded=true] span:first-child{transform:translateY(3.5px) rotate(45deg)}.menu-button[aria-expanded=true] span:last-child{transform:translateY(-3.5px) rotate(-45deg)}.header-inner{padding-inline:20px}.screen{min-height:calc(100svh - var(--nav));padding:55px 24px}.hero{padding-block:25px 35px}.hero-inner{gap:22px}.hero-cover{width:min(460px,100%);height:100px;border-radius:14px}.hero h1{font-size:clamp(2.6rem,7vw,3.8rem)}.hero-description{font-size:1rem;margin-top:18px}.hero-description br{display:none}.hero .eyebrow{font-size:.85rem}.grade-shortcuts{gap:10px}.grade-shortcuts a{padding:13px 10px;font-size:.85rem}.grade-shortcuts a>span{font-size:1.2rem}.grade-shortcuts b{display:none}.hero-note{font-size:.8rem}.learning-grid{grid-template-columns:1fr}.learning-card{min-height:0;padding:26px}.card-example{margin-top:0;padding-top:20px;font-size:1.5rem}.learning-card p{font-size:1rem;max-width:none}.card-label{margin-bottom:18px}.learning-card h3{font-size:1.5rem}.section-heading>p:last-child:not(.eyebrow){font-size:1rem}.grade-layout{grid-template-columns:1fr;gap:30px}.grade-copy h2{font-size:clamp(2.35rem,6.4vw,3.2rem)}.grade-description{font-size:1.05rem}.topic-list{margin:20px 0}.example-card h3{font-size:1.65rem}.example-card{padding:27px}.worked-equation{font-size:1.8rem}.goal-card{padding:24px}.statement h2{font-size:clamp(2.3rem,6vw,3rem)}.statement-note{font-size:1rem}.statement-note br{display:none}.progress-cards{grid-template-columns:1fr;gap:15px;margin-top:28px}.progress-cards article{padding:25px}.contact-box{padding:42px 24px;border-radius:25px}.contact-box>p:not(.eyebrow){font-size:1rem}.contact-box br{display:none}.contact footer{font-size:.8rem;gap:12px}.contact footer>p{width:100%}}
@media(max-width:390px){.screen{padding-inline:20px}.hero h1{font-size:2.55rem}.grade-shortcuts{grid-template-columns:repeat(2,1fr)}.grade-shortcuts a{justify-content:center}.hero-inner{gap:17px}.hero-cover{height:85px}.hero-description{font-size:.95rem}.hero-choices>p{font-size:.8rem}.worked-equation{font-size:1.55rem}.lesson-button{font-size:.875rem;gap:12px}.eyebrow{font-size:.85rem}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*,*:before,*:after{animation:none!important;transition:none!important}.js-motion .reveal{opacity:1!important;transform:none!important;will-change:auto}}
/* Full-strength class colors and an expanded opening image. */
.hero-cover{width:min(1000px,100%);height:clamp(160px,24svh,225px);border-radius:22px}.hero-inner{gap:20px}.hero h1{font-size:clamp(3.2rem,4.8vw,4.6rem)}.hero-description{margin-top:16px}.grade-screen{background:var(--accent)!important;color:var(--dark);--ink:var(--dark);--secondary:var(--dark);--line:var(--dark)}.grade-badge{background:var(--dark);color:var(--accent)}.grade-description,.channel-note{color:var(--dark)}.topic-list span{background:transparent;border:1px solid var(--dark)}.example-card{background:var(--light);color:var(--dark);box-shadow:0 20px 50px -35px var(--dark)}.goal-card{background:var(--dark);color:var(--light)}.goal-card h3{color:var(--accent)}.goal-card li:before{color:var(--accent)}.grade-actions{display:flex;flex-wrap:wrap;align-items:center;gap:12px}.topics-button{display:inline-flex;align-items:center;justify-content:space-between;gap:20px;background:var(--dark);color:var(--light);padding:14px 18px;border:1px solid var(--dark);border-radius:12px;font-size:.95rem;font-weight:550;transition:transform .25s}.topics-button span{font-size:.75rem;border-left:1px solid var(--light);padding-left:13px}.topics-button:hover,.lesson-button:hover{transform:translateY(-4px)}.lesson-button{background:transparent;border:1px solid var(--dark);padding:14px 18px;font-size:.9rem}.grade-actions:has(.topics-button:focus-visible){outline:none}.channel-note{max-width:100%}.topic-list{gap:7px}.topic-list span{font-size:.8rem}.js-motion .reveal{opacity:1;transform:none;will-change:auto}.js-motion .reveal.is-waiting{opacity:0;transform:translateY(55px) scale(.97)}
body.modal-open{overflow:hidden}.topics-dialog{width:min(900px,calc(100% - 40px));height:min(820px,88svh);max-height:88svh;padding:0;border:0;border-radius:27px;background:var(--bg);color:var(--ink);overflow:hidden;box-shadow:0 30px 100px rgb(28 28 30 / 40%)}.topics-dialog[open]{display:flex;flex-direction:column;animation:dialog-enter .45s var(--ease) both}.topics-dialog::backdrop{background:rgb(28 28 30 / 65%);backdrop-filter:blur(12px)}.dialog-header{display:flex;align-items:center;justify-content:space-between;gap:20px;padding:30px 35px 25px;background:var(--accent);color:var(--dark);flex:none}.dialog-header .eyebrow{font-size:.75rem;letter-spacing:.07em;margin-bottom:10px}.dialog-header h2{font-size:2.4rem}.dialog-close{width:42px;height:42px;border:1px solid var(--dark);background:transparent;border-radius:50%;font-size:27px;line-height:1;flex:none;color:var(--dark)}.dialog-close:hover{background:var(--dark);color:var(--accent)}.dialog-toolbar{display:flex;gap:20px;align-items:center;padding:18px 35px;border-bottom:1px solid var(--line);flex:none}.topic-search{flex:1}.topic-search input{width:100%;padding:12px 15px;background:var(--surface);border:1px solid var(--line);border-radius:10px;font:inherit;font-size:1rem;color:var(--ink)}.result-count{font-size:.85rem;white-space:nowrap;min-width:65px}.dialog-list{overflow:auto;overscroll-behavior:contain;padding:10px 35px 30px;flex:1;min-height:0;scrollbar-color:var(--accent) var(--bg)}.topic-group h3{font-size:1.05rem;letter-spacing:-.02em;margin:25px 0 10px}.topic-group ol{list-style:none;margin:0;padding:0}.lesson-row a{display:grid;grid-template-columns:28px 1fr 45px 18px;align-items:center;gap:16px;padding:16px 0;border-bottom:1px solid var(--line);font-size:.95rem;line-height:1.5;transition:background .2s,padding .2s}.lesson-row a:hover{background:var(--surface);padding-inline:10px}.lesson-number,.lesson-duration{color:var(--secondary);font-size:.8rem;font-variant-numeric:tabular-nums}.lesson-arrow{color:var(--ink)}.dialog-footer{border-top:1px solid var(--line);padding:18px 35px;display:flex;justify-content:space-between;gap:20px;align-items:center;flex:none;font-size:.8rem}.dialog-footer span{color:var(--secondary);max-width:310px}.dialog-footer a{text-decoration:underline;text-underline-offset:4px}.no-results{padding:30px 0;color:var(--secondary)}[hidden]{display:none!important}.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}@keyframes dialog-enter{from{opacity:0;transform:translateY(35px) scale(.96)}to{opacity:1;transform:none}}
@media(min-width:1000px) and (max-height:780px){.hero-cover{width:min(880px,100%);height:160px}.hero-inner{gap:14px}.hero h1{font-size:3.5rem}.grade-layout{gap:40px}.grade-actions{gap:10px}.topics-button,.lesson-button{font-size:.85rem;padding:12px 14px}.topic-list{margin:17px 0}.topic-list span{font-size:.75rem}.channel-note{font-size:.75rem}}
@media(max-width:800px){.hero-cover{width:100%;height:160px}.hero h1{font-size:clamp(2.6rem,7vw,3.8rem)}.hero-inner{gap:21px}.hero{padding-top:30px;padding-bottom:35px}.grade-actions{gap:12px}.topics-button,.lesson-button{font-size:.9rem}.topics-dialog{width:calc(100% - 20px);height:92svh;max-height:92svh;border-radius:20px}.dialog-header{padding:23px 20px}.dialog-header h2{font-size:1.8rem}.dialog-toolbar{padding:15px 20px;gap:12px}.dialog-list{padding:5px 20px 20px}.lesson-row a{grid-template-columns:23px 1fr 40px;gap:10px;font-size:.9rem;padding:14px 0}.lesson-arrow{display:none}.dialog-footer{padding:15px 20px;flex-wrap:wrap;gap:8px}.dialog-footer span{max-width:100%;font-size:.75rem}.topic-group h3{font-size:1rem}.example-card{box-shadow:none}}
@media(max-width:390px){.hero-cover{height:140px}.hero-inner{gap:15px}.hero h1{font-size:2.5rem}.hero-description{font-size:.9rem}.hero-choices>p{margin-bottom:8px}.grade-shortcuts a{padding:11px 10px}.grade-actions>*{width:100%;justify-content:center}.dialog-header h2{font-size:1.55rem}.dialog-close{width:36px;height:36px}.dialog-toolbar{padding:12px 15px}.dialog-list{padding-inline:15px}}
@media(prefers-reduced-motion:reduce){.js-motion .reveal.is-waiting{opacity:1;transform:none}.topics-dialog[open]{animation:none}}
.js-motion .reveal.is-waiting{pointer-events:none}
@media(prefers-reduced-motion:reduce){.js-motion .reveal.is-waiting{pointer-events:auto}}

/* ===== güncellemeler ===== */
/* hero kapağı büyütüldü (2160×600 orijinal) */
.hero-cover{width:min(1180px,100%);height:auto;aspect-ratio:2160/600;background:transparent;border-radius:0}
.hero-cover picture,.hero-cover img{width:100%;height:auto;display:block;object-fit:contain}

/* sınıf başlıkları büyütüldü */
.grade-copy h2{font-size:clamp(2.7rem,7.2vw,4.4rem);line-height:1.02;letter-spacing:-.055em}
.grade-badge{width:46px;height:46px;font-size:1.45rem;letter-spacing:-.03em}

/* iletişim */
.contact-inner{width:100%}
.contact-lead{font-size:1.12rem;line-height:1.55;max-width:62ch;margin:20px auto 0}
.contact-reasons{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:14px;margin:34px 0 30px;text-align:left}
.contact-reasons article{background:color-mix(in srgb,var(--dark) 8%,transparent);border:1px solid color-mix(in srgb,var(--dark) 14%,transparent);border-radius:18px;padding:20px}
.contact-reasons h3{font-size:1.12rem;margin-bottom:6px;color:var(--dark)}
.contact-reasons p{font-size:.96rem;line-height:1.45;color:color-mix(in srgb,var(--dark) 74%,transparent)}
.contact-box .mail-address{display:block;margin-top:14px}

/* footer sayfanın altında */
.site-footer{border-top:1px solid var(--line);background:var(--bg);padding:34px 40px 40px}
.site-footer .footer-inner{max-width:1200px;margin:0 auto;display:flex;flex-wrap:wrap;align-items:center;gap:16px 30px;font-size:.82rem;color:var(--secondary)}
.site-footer p{margin:0}
.site-footer strong{color:var(--ink);font-weight:650}
.site-footer nav{display:flex;flex-wrap:wrap;gap:18px;margin-left:auto}
.site-footer nav a{color:var(--secondary);transition:color .2s}
.site-footer nav a:hover{color:var(--ink)}
.site-footer .footer-meta{width:100%;display:flex;justify-content:space-between;gap:16px;border-top:1px solid var(--line);padding-top:16px}

@media(max-width:900px){
  .contact-reasons{grid-template-columns:minmax(0,1fr);gap:10px}
  .contact-reasons article{padding:16px}
}
@media(max-width:760px){
  .contact-reasons{display:flex;flex-wrap:wrap;justify-content:center;gap:8px;margin:24px 0 24px}
  .contact-reasons article{padding:9px 15px;border-radius:999px}
  .contact-reasons h3{font-size:.92rem;margin:0}
  .contact-reasons p{display:none}
}
@media(max-width:760px){
  .hero-cover{width:100%}
  .grade-copy h2{font-size:clamp(2.2rem,9vw,3rem)}
  .site-footer{padding:26px 24px 32px}
  .site-footer nav{margin-left:0;gap:12px 16px}
  .contact-lead{font-size:1.02rem}
}

/* ===== v8: marka, sınıf başlıkları, iletişim ===== */
/* marka: arka plan yok, açık/koyu ayrı PNG */
.brand{width:auto;background:none;padding:0;border-radius:0;display:inline-flex;align-items:center;flex:none}
.brand picture,.brand img{display:block;height:30px;width:auto}

/* sınıf sayfası: içeriğin üstünde dev, sola hizalı başlık */
.grade-stack{display:flex;flex-direction:column;justify-content:center;gap:clamp(18px,3.4vh,40px)}
.grade-huge{
  font-family:Inter,-apple-system,BlinkMacSystemFont,sans-serif;
  font-weight:900;
  font-variation-settings:"wght" 900;
  font-size:clamp(3.2rem,11.4vw,9.6rem);
  line-height:.84;
  letter-spacing:-.055em;
  text-align:left;
  margin:0;
  color:inherit;
}
.grade-copy h2{font-size:clamp(1.9rem,3.4vw,2.8rem);line-height:1.06;letter-spacing:-.045em}
.grade-copy h2{margin-bottom:0}
.grade-layout{align-items:center}

/* iletişim: logo + dikey ortalı içerik */
.contact .screen-inner{display:flex;flex-direction:column;align-items:center;justify-content:center;gap:clamp(18px,3vh,34px)}
.contact-logo{display:flex;justify-content:center}
.contact-logo picture,.contact-logo img{display:block;height:clamp(54px,9vh,96px);width:auto}
.contact-box{width:100%}

@media(max-width:900px){
  .grade-huge{font-size:clamp(2.9rem,13vw,5rem)}
}
@media(max-width:760px){
  .brand picture,.brand img{height:26px}
  .grade-stack{gap:14px}
  .grade-huge{font-size:clamp(2.6rem,13.5vw,4rem);line-height:.88}
  .grade-copy h2{font-size:clamp(1.6rem,6.4vw,2.1rem)}
  .contact-logo picture,.contact-logo img{height:clamp(42px,7.5vh,64px)}
}

/* ===== v9: başlık konumu, noktalama standardı, tam sayfa denge ===== */
/* sınıf sayfaları: içerik tüm ekranı kaplasın, başlık yukarıda dursun */
.grade-screen{align-items:stretch}
.grade-stack{justify-content:flex-start;gap:clamp(12px,2.2vh,26px)}
.grade-huge{
  font-size:clamp(3.2rem,12.4vw,11.5rem);
  letter-spacing:normal;
  padding-top:clamp(0px,.6vh,8px);
  display:flex;
  align-items:baseline;
  white-space:nowrap;
}
/* noktalama: dört başlıkta da aynı boşluk */
.grade-huge .grade-num{letter-spacing:-.01em;margin-right:.16em}
.grade-huge .grade-word{letter-spacing:-.045em}
/* kalan alanı içerik doldursun, dikeyde ortalansın */
.grade-layout{flex:1 1 auto;align-content:center}

@media(max-width:900px){
  .grade-huge{font-size:clamp(2.9rem,13vw,6rem)}
}
@media(max-width:760px){
  .grade-screen{align-items:center}
  .grade-stack{justify-content:center;gap:14px}
  .grade-huge{font-size:clamp(2.6rem,13.5vw,4rem);line-height:.88;padding-top:0}
  .grade-layout{flex:0 0 auto}
}

/* ===== v10: iletişim logosu, başlık üst boşluğu ===== */
/* iletişim: logo orantılı olarak büyütüldü */
.contact-logo picture,.contact-logo img{height:clamp(78px,13vh,150px)}
@media(max-width:760px){
  .contact-logo picture,.contact-logo img{height:clamp(58px,10.5vh,92px)}
}
/* sınıf başlıkları: sınırdan biraz aşağıda dursun */
.grade-huge{padding-top:clamp(14px,4.6vh,58px)}
@media(max-width:760px){
  .grade-huge{padding-top:0}
}

/* ===== v11: iletişim logosu daha büyük ===== */
.contact .screen-inner{gap:clamp(14px,2.4vh,28px)}
.contact-logo picture,.contact-logo img{height:clamp(120px,18vh,190px)}
@media(max-width:760px){
  .contact-logo picture,.contact-logo img{height:clamp(76px,13vh,120px)}
}

/* ===== v12: iletişim kutusu dört sınıf rengiyle, logo kutunun altında ===== */
.contact-box{
  background:linear-gradient(90deg,
    var(--c5) 0 25%,
    var(--c6) 25% 50%,
    var(--c7) 50% 75%,
    var(--c8) 75% 100%);
  color:var(--dark);
}
.contact-box .eyebrow,.contact-box h2,.contact-box .contact-lead{color:var(--dark)}
/* kartlar koyu zeminde, her biri kendi sınıf rengiyle */
.contact-reasons article{
  background:var(--dark);
  border:1px solid color-mix(in srgb,var(--accent) 45%,transparent);
  color:var(--light);
}
.contact-reasons article h3{color:var(--accent)}
.contact-reasons article p{color:color-mix(in srgb,var(--light) 76%,transparent)}
.mail-button{background:var(--dark);color:var(--light)}
@media(max-width:760px){
  .contact-box{
    background:linear-gradient(180deg,
      var(--c5) 0 25%,
      var(--c6) 25% 50%,
      var(--c7) 50% 75%,
      var(--c8) 75% 100%);
  }
}

/* ===== v13: beyaz kutu, dört renkli çerçeve, renkli kartlar ===== */
.contact-box{
  background:
    linear-gradient(var(--light),var(--light)) padding-box,
    linear-gradient(90deg,
      var(--c5) 0 25%,
      var(--c6) 25% 50%,
      var(--c7) 50% 75%,
      var(--c8) 75% 100%) border-box;
  border:4px solid transparent;
  color:var(--dark);
}
.contact-box h2{margin-top:0}
.contact-box .contact-lead{color:color-mix(in srgb,var(--dark) 76%,transparent)}
/* içindeki kutular: her biri kendi sınıf renginde */
.contact-reasons article{
  background:var(--accent);
  border:none;
  color:var(--dark);
}
.contact-reasons article h3{color:var(--dark)}
.contact-reasons article p{color:color-mix(in srgb,var(--dark) 82%,transparent)}
.mail-button{background:var(--dark);color:var(--light)}
@media(max-width:760px){
  .contact-box{
    background:
      linear-gradient(var(--light),var(--light)) padding-box,
      linear-gradient(180deg,
        var(--c5) 0 25%,
        var(--c6) 25% 50%,
        var(--c7) 50% 75%,
        var(--c8) 75% 100%) border-box;
    border-width:3px;
  }
}

/* ===== v14: kapatma butonu — odak halkası yok, ikon tam ortada ===== */
.dialog-close{
  display:grid;
  place-items:center;
  padding:0;
  line-height:0;
  font-size:0;
  -webkit-tap-highlight-color:transparent;
}
.dialog-close svg{display:block}
.dialog-close:focus,
.dialog-close:focus-visible{outline:none;box-shadow:none}
/* klavye kullanıcısı için halka yerine dolu zemin */
.dialog-close:focus-visible{background:var(--dark);color:var(--accent)}

/* ===== v15: hero başlığı büyütüldü, iletişim yeniden tasarlandı ===== */
.hero h1{font-size:clamp(2.9rem,5.4vw,4.7rem);line-height:1.02;letter-spacing:-.035em}

/* --- iletişim --- */
.contact .screen-inner{
  display:flex;
  flex-direction:column;
  align-items:center;
  justify-content:center;
  gap:clamp(16px,2.6vh,30px);
  text-align:center;
}
.contact-head{max-width:64ch}
.contact h2{
  font-size:clamp(2.4rem,4.6vw,3.9rem);
  line-height:1.04;
  letter-spacing:-.04em;
  margin:0;
}
.contact-lead{
  font-size:clamp(1rem,1.15vw,1.12rem);
  line-height:1.55;
  max-width:62ch;
  margin:14px auto 0;
  color:color-mix(in srgb,var(--ink) 72%,transparent);
}
/* üç renkli kart — sınıf sayfalarının diliyle aynı */
.contact-reasons{
  display:grid;
  grid-template-columns:repeat(3,minmax(0,1fr));
  gap:16px;
  width:100%;
  max-width:1000px;
  margin:0;
  text-align:left;
}
.contact-reasons article{
  background:var(--accent);
  color:var(--dark);
  border:none;
  border-radius:22px;
  padding:22px 22px 24px;
}
.contact-reasons article h3{
  margin:0 0 6px;
  font-size:1.06rem;
  letter-spacing:-.015em;
  color:var(--dark);
}
.contact-reasons article p{
  margin:0;
  font-size:.95rem;
  line-height:1.5;
  color:color-mix(in srgb,var(--dark) 80%,transparent);
}
.mail-button{margin-top:0}
/* kapanış cümlesi — hero başlığının kardeşi */
.contact-closing{
  margin:0;
  font-weight:800;
  font-variation-settings:"wght" 800;
  font-size:clamp(1.9rem,3.4vw,3rem);
  line-height:1.06;
  letter-spacing:-.035em;
  color:var(--ink);
}
.contact-logo{display:flex;justify-content:center}
.contact-logo picture,.contact-logo img{display:block;height:clamp(64px,9vh,104px);width:auto}

@media(max-width:900px){
  .contact-reasons{grid-template-columns:repeat(3,minmax(0,1fr));gap:12px}
  .contact-reasons article{padding:18px}
}
@media(max-width:760px){
  .contact .screen-inner{gap:18px}
  .contact-reasons{grid-template-columns:minmax(0,1fr);gap:10px;text-align:left}
  .contact-reasons article{padding:16px 18px;border-radius:18px}
  .contact-closing{font-size:clamp(1.6rem,7vw,2.2rem)}
  .contact-logo picture,.contact-logo img{height:clamp(52px,8vh,74px)}
}
.hero h1{margin:0 0 14px}
.contact-closing{margin-top:clamp(6px,1.6vh,18px)}
.contact .screen-inner{gap:clamp(18px,3.4vh,40px)}
.contact-logo picture,.contact-logo img{height:clamp(76px,11vh,122px)}
@media(max-width:760px){
  .contact .screen-inner{gap:18px}
  .contact-logo picture,.contact-logo img{height:clamp(52px,8vh,74px)}
}

/* ===== v16: "nasıl çalışır" — dört blok, asimetrik yerleşim ===== */
.how .learning-grid{
  grid-template-columns:1.12fr 1fr;
  grid-template-rows:auto auto auto;
  gap:clamp(12px,1.8vh,20px);
  align-items:stretch;
}
.how .learning-card{min-height:0;padding:clamp(22px,2.6vh,30px)}
.how .learning-grid>:nth-child(1){grid-column:1;grid-row:1 / span 2;justify-content:flex-end}
.how .learning-grid>:nth-child(2){grid-column:2;grid-row:1}
.how .learning-grid>:nth-child(3){grid-column:2;grid-row:2}
.how .learning-grid>:nth-child(4){grid-column:1 / -1;grid-row:3}
.how .learning-grid>:nth-child(4) p{max-width:78ch}
@media(max-width:760px){
  .how .learning-grid{grid-template-columns:minmax(0,1fr);grid-template-rows:none;gap:10px}
  .how .learning-grid>:nth-child(1),
  .how .learning-grid>:nth-child(2),
  .how .learning-grid>:nth-child(3),
  .how .learning-grid>:nth-child(4){grid-column:auto;grid-row:auto;justify-content:flex-start}
}

/* ===== v18: nasıl çalışır — tek ekrana sığdır ===== */
.how .learning-grid{gap:clamp(10px,1.5vh,16px)}
.how .learning-card{padding:clamp(16px,2.1vh,24px)}
.how .learning-card h3{font-size:clamp(1.15rem,1.55vw,1.4rem);margin-bottom:8px}
.how .learning-card p{font-size:.97rem;line-height:1.5}
.how .section-heading{margin-bottom:clamp(14px,2vh,26px)}

/* ===== v19: yaklaşım ve ilerleme — dört blok, farklı yerleşimler ===== */
/* Yaklaşımımız: değirmen düzeni (geniş–dar / dar–geniş) */
.approach .learning-grid{
  grid-template-columns:repeat(3,minmax(0,1fr));
  grid-template-rows:auto auto;
  gap:clamp(10px,1.5vh,16px);
}
.approach .learning-card{min-height:0;padding:clamp(16px,2.1vh,24px)}
.approach .learning-grid>:nth-child(1){grid-column:1 / span 2;grid-row:1}
.approach .learning-grid>:nth-child(2){grid-column:3;grid-row:1}
.approach .learning-grid>:nth-child(3){grid-column:1;grid-row:2}
.approach .learning-grid>:nth-child(4){grid-column:2 / -1;grid-row:2}
.approach .learning-card h3{font-size:clamp(1.15rem,1.55vw,1.4rem);margin-bottom:8px}
.approach .learning-card p{font-size:.97rem;line-height:1.5;max-width:52ch}
.approach .card-example{font-size:clamp(1.1rem,1.5vw,1.35rem);padding-top:14px}
.approach .learning-card small{margin-top:6px}
.approach .section-heading{margin-bottom:clamp(12px,1.8vh,22px)}

/* İlerleme: tek sıra, farklı genişlikler, basamaklı hizalama */
.statement .progress-cards{
  grid-template-columns:1.22fr .92fr 1.08fr .88fr;
  gap:clamp(10px,1.4vh,16px);
  align-items:start;
  margin-top:clamp(20px,3vh,38px);
}
.statement .progress-cards article{padding:clamp(18px,2.4vh,26px)}
.statement .progress-cards>:nth-child(2){margin-top:clamp(14px,2.4vh,30px)}
.statement .progress-cards>:nth-child(3){margin-top:clamp(7px,1.2vh,15px)}
.statement .progress-cards>:nth-child(4){margin-top:clamp(21px,3.6vh,45px)}

@media(max-width:900px){
  .approach .learning-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .approach .learning-grid>:nth-child(1){grid-column:1;grid-row:1}
  .approach .learning-grid>:nth-child(2){grid-column:2;grid-row:1}
  .approach .learning-grid>:nth-child(3){grid-column:1;grid-row:2}
  .approach .learning-grid>:nth-child(4){grid-column:2;grid-row:2}
  .statement .progress-cards{grid-template-columns:repeat(2,minmax(0,1fr))}
  .statement .progress-cards>:nth-child(2),
  .statement .progress-cards>:nth-child(3),
  .statement .progress-cards>:nth-child(4){margin-top:0}
}
@media(max-width:760px){
  .approach .learning-grid{grid-template-columns:minmax(0,1fr);grid-template-rows:none}
  .approach .learning-grid>:nth-child(1),
  .approach .learning-grid>:nth-child(2),
  .approach .learning-grid>:nth-child(3),
  .approach .learning-grid>:nth-child(4){grid-column:auto;grid-row:auto}
  .statement .progress-cards{grid-template-columns:minmax(0,1fr)}
}
.approach .learning-card{padding:clamp(14px,1.9vh,21px)}
.approach .card-example{padding-top:10px}
.approach .section-heading{margin-bottom:clamp(10px,1.4vh,17px)}

/* ===== v20: İlerleme — büyük kartlar, basamaklı diyagonal ===== */
.statement .progress-cards{
  grid-template-columns:1.06fr .96fr 1.04fr .94fr;
  gap:clamp(12px,1.6vh,18px);
  align-items:start;
  margin-top:clamp(16px,2.4vh,30px);
  counter-reset:step;
}
.statement .progress-cards article{
  counter-increment:step;
  display:flex;
  flex-direction:column;
  min-height:clamp(210px,33vh,320px);
  padding:clamp(18px,2.4vh,26px);
  border-radius:24px;
}
.statement .progress-cards article::before{
  content:"0" counter(step);
  font-size:clamp(1.5rem,2.3vw,2.3rem);
  font-weight:800;
  font-variation-settings:"wght" 800;
  letter-spacing:-.04em;
  line-height:1;
  color:color-mix(in srgb,var(--dark) 42%,transparent);
}
.statement .progress-cards h3{margin-top:auto;margin-bottom:8px;font-size:clamp(1.1rem,1.5vw,1.3rem)}
.statement .progress-cards p{font-size:.97rem;line-height:1.5}
.statement .progress-cards>:nth-child(2){margin-top:clamp(16px,2.9vh,38px)}
.statement .progress-cards>:nth-child(3){margin-top:clamp(32px,5.8vh,76px)}
.statement .progress-cards>:nth-child(4){margin-top:clamp(48px,8.7vh,114px)}

@media(max-width:900px){
  .statement .progress-cards{grid-template-columns:repeat(2,minmax(0,1fr))}
  .statement .progress-cards>:nth-child(2),
  .statement .progress-cards>:nth-child(3),
  .statement .progress-cards>:nth-child(4){margin-top:0}
  .statement .progress-cards article{min-height:0}
}
@media(max-width:760px){
  .statement .progress-cards{grid-template-columns:minmax(0,1fr)}
}
.statement .progress-cards article{min-height:clamp(220px,36.5vh,350px)}
@media(max-width:900px){
  .statement .progress-cards article{min-height:0}
}

/* ===== v21: iletişim — dört kutu, her satırda ikişer ===== */
.contact .screen-inner{gap:clamp(14px,2.4vh,28px)}
.contact-reasons{
  grid-template-columns:repeat(2,minmax(0,1fr));
  max-width:880px;
  gap:clamp(12px,1.8vh,18px);
}
.contact-reasons article{padding:clamp(18px,2.4vh,24px)}
.contact-logo picture,.contact-logo img{height:clamp(64px,9vh,104px)}
@media(max-width:760px){
  .contact-reasons{grid-template-columns:minmax(0,1fr)}
  .contact-logo picture,.contact-logo img{height:clamp(52px,8vh,74px)}
}

/* ===== v22: koyu modda "Bize Ulaş" butonu ===== */
.mail-button{background:var(--ink);color:var(--bg)}
@media(max-width:760px){
  /* eski "hap" görünümü iptal: mobilde de tam kart */
  .contact-reasons{display:grid;grid-template-columns:minmax(0,1fr);gap:10px;margin:0;justify-content:stretch}
  .contact-reasons article{padding:16px 18px;border-radius:18px}
  .contact-reasons h3{font-size:1.05rem;margin:0 0 5px}
  .contact-reasons p{display:block;font-size:.93rem;line-height:1.45}
}

/* ===== v23: "Bize Ulaş" butonu — koyu mod + ortalı hizalama ===== */
.mail-button{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:10px;
  padding:15px 26px;
  background:var(--dark);
  color:var(--light);
}
@media (prefers-color-scheme: dark){
  .mail-button{background:var(--light);color:var(--dark)}
}
.mail-button>span{line-height:1}
.btn-arrow{display:block;flex:none}
.lesson-button{gap:10px;justify-content:center}
.lesson-button>span{line-height:1}


/* ===== v24: sınıf sayfası CTA butonları — daha büyük ===== */
.grade-actions{gap:14px}
.topics-button,.lesson-button{
  padding:18px 26px;
  font-size:1.05rem;
  border-radius:14px;
}
.topics-button{gap:22px;line-height:1}
.topics-button span{font-size:.85rem;padding-left:16px}
.lesson-button{gap:12px}
.lesson-button .btn-arrow{width:17px;height:17px}
@media(min-width:1000px) and (max-height:780px){
  .topics-button,.lesson-button{padding:15px 20px;font-size:.95rem}
}
@media(max-width:800px){
  .topics-button,.lesson-button{padding:16px 22px;font-size:1rem}
}

/* ===== v24: hero sınıf butonları — içerik ortalı ===== */
.grade-shortcuts a{justify-content:center;gap:7px}
.grade-shortcuts b{margin-left:0}


/* ===== v24: SSS bölümü — mevcut kart diliyle aynı ===== */
.faq-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:18px;margin-top:34px;text-align:left}
.faq-grid article{background:var(--accent);color:var(--dark);border-radius:22px;padding:26px}
.faq-grid h3{font-size:1.12rem;line-height:1.25;margin-bottom:11px}
.faq-grid p{font-size:.97rem;line-height:1.5}
@media(min-width:1000px) and (max-height:780px){
  .faq-grid{gap:14px;margin-top:24px}
  .faq-grid article{padding:20px}
  .faq-grid h3{font-size:1.02rem;margin-bottom:8px}
  .faq-grid p{font-size:.9rem;line-height:1.45}
}
@media(max-width:1000px){.faq-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:14px}}
@media(max-width:800px){
  .faq-grid{grid-template-columns:minmax(0,1fr);gap:12px;margin-top:26px}
  .faq-grid article{padding:22px}
}
/* SSS araya girdiğinde iletişim bölümünün zemini değişmesin */
.screen.contact{background:var(--bg)}