/* Ece Baz — katı' sanatı
   Palet: kâğıt mavisi zemin, lâcivert mürekkep, altın varak */
:root{
  --paper:#EDF2F4;
  --paper-deep:#E1E9EC;
  --surface:#F8FAFB;
  --ink:#1F2B3A;
  --ink-soft:#4A5767;
  --gold:#9C7731;
  --gold-soft:#C9A65E;
  --line:#CFDAE0;
  --serif:"Instrument Serif", "Times New Roman", serif;
  --sans:"Hanken Grotesk", system-ui, sans-serif;
  --wrap:1180px;
  --gutter:clamp(1rem,4vw,2.5rem);
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}*{transition:none!important;animation:none!important}}
body{margin:0;background:var(--paper);color:var(--ink);font:400 1.0625rem/1.65 var(--sans);-webkit-font-smoothing:antialiased}
img{max-width:100%;display:block}
a{color:inherit}
:focus-visible{outline:2px solid var(--gold);outline-offset:3px}
.wrap{max-width:var(--wrap);margin:0 auto;padding:0 var(--gutter)}
h1,h2,h3{font-family:var(--serif);font-weight:400;line-height:1.05;margin:0;letter-spacing:-.01em}
h2{font-size:clamp(2.4rem,5vw,3.6rem)}
h3{font-size:1.5rem}
p{margin:0 0 1em}
.lead{font-size:1.15rem;color:var(--ink-soft);max-width:58ch}

/* Buttons */
.btn{display:inline-flex;align-items:center;gap:.5rem;padding:.8rem 1.4rem;border-radius:999px;font:600 .95rem/1 var(--sans);text-decoration:none;border:1.5px solid var(--ink);transition:background .2s,color .2s}
.btn--solid{background:var(--ink);color:var(--paper)}
.btn--solid:hover{background:#2E3E52}
.btn--line:hover{background:var(--ink);color:var(--paper)}
.btn--wa{background:#1F7A4D;border-color:#1F7A4D;color:#fff}
.btn--wa:hover{background:#186640}

/* Header */
.top{position:sticky;top:0;z-index:20;background:rgba(237,242,244,.92);backdrop-filter:blur(8px);border-bottom:1px solid transparent;transition:border-color .2s}
.top.is-scrolled{border-bottom-color:var(--line)}
.top__in{display:flex;align-items:center;gap:2rem;height:68px}
.logo{font:400 1.7rem/1 var(--serif);text-decoration:none;margin-right:auto}
.nav{display:flex;gap:1.75rem;list-style:none;margin:0;padding:0}
.nav a{text-decoration:none;font-size:.95rem;color:var(--ink-soft)}
.nav a:hover{color:var(--ink)}
.top .btn{padding:.6rem 1.1rem;font-size:.88rem}
.burger{display:none;background:none;border:0;padding:.5rem;cursor:pointer;color:var(--ink)}
.burger svg{width:26px;height:26px}
@media (max-width:860px){
  .nav,.top .btn{display:none}
  .burger{display:block}
  .top.is-open .nav{display:flex;flex-direction:column;position:absolute;left:0;right:0;top:68px;background:var(--paper);padding:1rem var(--gutter) 1.5rem;gap:1rem;border-bottom:1px solid var(--line)}
  .top.is-open .nav a{font-size:1.1rem}
}

/* Hero — Osmanlı kemeri penceresi */
.hero{padding:clamp(2rem,6vw,4.5rem) 0 clamp(3rem,7vw,6rem)}
.hero__grid{display:grid;grid-template-columns:1.05fr .95fr;gap:clamp(2rem,5vw,4.5rem);align-items:end}
.hero__name{font-size:clamp(4.2rem,11vw,9.5rem);line-height:.88;letter-spacing:-.02em}
.hero__role{font:italic 400 clamp(1.4rem,2.6vw,1.9rem)/1.2 var(--serif);color:var(--gold);margin:1.1rem 0 1.6rem}
.hero__text{max-width:44ch;color:var(--ink-soft);margin-bottom:2rem}
.hero__cta{display:flex;flex-wrap:wrap;gap:.75rem}
.arch{position:relative;margin:0}
.arch__frame{aspect-ratio:4/5.4;overflow:hidden;
  clip-path:url(#kemer);background:var(--paper-deep)}
.arch__frame img{width:100%;height:100%;object-fit:cover;object-position:30% 50%}
.arch__wrap{position:relative}
.arch__line{position:absolute;left:-12px;top:-12px;width:calc(100% + 24px);height:calc(100% + 12px);pointer-events:none;overflow:visible}
.arch__line path{fill:none;stroke:var(--gold-soft);stroke-width:1;vector-effect:non-scaling-stroke}
.arch figcaption{font-size:.85rem;color:var(--ink-soft);margin-top:.75rem;text-align:center}
.arch figcaption button{all:unset;cursor:pointer;text-decoration:underline;text-underline-offset:3px}
@media (max-width:760px){
  .hero__grid{grid-template-columns:1fr}
  .arch{max-width:330px;width:calc(100% - 24px);margin:0 auto;order:-1}
}

/* Sections */
.sec{padding:clamp(4rem,9vw,7rem) 0;scroll-margin-top:68px}
footer{scroll-margin-top:68px}
.sec--deep{background:var(--paper-deep)}
.sec__head{display:flex;justify-content:space-between;align-items:end;gap:2rem;margin-bottom:clamp(2rem,4vw,3rem);flex-wrap:wrap}
.sec__head p{margin:0;color:var(--ink-soft);max-width:42ch}

/* Eserler — taşlı duvar düzeni */
.works{columns:3 300px;column-gap:clamp(1rem,2.5vw,1.75rem)}
.work{break-inside:avoid;margin:0 0 clamp(1.25rem,3vw,2rem)}
.work__btn{all:unset;display:block;cursor:zoom-in;width:100%}
.work__img{background:var(--surface);overflow:hidden}
.work__img img{width:100%;height:auto;transition:transform .5s ease}
.work__btn:hover .work__img img{transform:scale(1.025)}
.work__btn:focus-visible{outline:2px solid var(--gold);outline-offset:4px}
.work__meta{display:flex;justify-content:space-between;align-items:baseline;gap:1rem;padding-top:.7rem}
.work__title{font:400 1.35rem/1.15 var(--serif)}
.work__count{font-size:.82rem;color:var(--ink-soft);white-space:nowrap}

/* Hakkında */
.about{display:grid;grid-template-columns:.8fr 1.2fr;gap:clamp(2rem,6vw,5rem);align-items:start}
.about__img{margin:0;position:sticky;top:96px}
.about__img img{width:100%}
.about__img figcaption{font-size:.85rem;color:var(--ink-soft);margin-top:.6rem}
.about h2{margin-bottom:1.5rem}
.about p{color:var(--ink-soft);max-width:60ch}
.facts{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:.25rem 2rem;margin:2rem 0;padding:0;list-style:none}
.facts li{padding:.75rem 0;border-top:1px solid var(--line);font-size:.95rem;color:var(--ink-soft)}
.facts strong{display:block;font:400 1.6rem/1.1 var(--serif);color:var(--ink)}
.awards{list-style:none;margin:2.5rem 0 0;padding:0}
.awards h3{font-size:1.4rem;margin-bottom:.5rem}
.award{display:grid;grid-template-columns:4.5rem 1fr;gap:1rem;padding:1rem 0;border-top:1px solid var(--line)}
.award__y{font:400 1.25rem/1.3 var(--serif);color:var(--gold)}
.award__t{font-weight:600;margin:0}
.award__o{font-size:.9rem;color:var(--ink-soft);margin:0}
@media (max-width:820px){.about{grid-template-columns:1fr}.about__img{position:static;max-width:440px}}

/* Katı' nedir */
.kati{display:grid;grid-template-columns:1.2fr .8fr;gap:clamp(2rem,6vw,5rem)}
.kati h2{margin-bottom:1.5rem}
.kati p{color:var(--ink-soft);max-width:62ch}
.listbox{border-top:2px solid var(--ink);padding-top:1.25rem;margin-bottom:2.5rem}
.listbox h3{font-size:1.45rem;margin-bottom:.9rem}
.listbox ul{margin:0;padding:0;list-style:none}
.listbox li{padding:.55rem 0;border-bottom:1px solid var(--line);font-size:.97rem;color:var(--ink-soft)}
.listbox li strong{color:var(--ink);font-weight:600}
@media (max-width:820px){.kati{grid-template-columns:1fr}}

/* Online ders */
.ders{display:grid;grid-template-columns:1.25fr .75fr;gap:clamp(2rem,6vw,5rem);align-items:start}
.ders h2{margin-bottom:1.25rem}
.when{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:1.5rem 2rem;margin:2rem 0 2.75rem}
.when dt{font-size:.88rem;color:var(--ink-soft);margin-bottom:.2rem}
.when dd{margin:0;font:400 1.3rem/1.25 var(--serif)}
.levels{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:1.5rem}
.level h3{font-size:1.35rem;padding-bottom:.6rem;margin-bottom:.6rem;border-bottom:1px solid var(--gold-soft)}
.level ul{margin:0;padding:0 0 0 1.1rem;color:var(--ink-soft);font-size:.95rem}
.level li{margin:.3rem 0}
.contact-card{background:var(--surface);padding:clamp(1.5rem,3vw,2.25rem);border:1px solid var(--line);position:sticky;top:96px}
.contact-card h3{font-size:1.8rem;margin-bottom:.6rem}
.contact-card p{color:var(--ink-soft);font-size:.97rem}
.contact-card .btn{width:100%;justify-content:center;margin-top:.5rem}
.contact-card__alt{display:flex;flex-direction:column;gap:.4rem;margin-top:1.4rem;padding-top:1.2rem;border-top:1px solid var(--line);font-size:.95rem}
.contact-card__alt a{text-decoration:none;color:var(--ink-soft)}
.contact-card__alt a:hover{color:var(--ink);text-decoration:underline}
@media (max-width:900px){.ders{grid-template-columns:1fr}.contact-card{position:static}}
@media (max-width:620px){.levels{grid-template-columns:1fr}.when{grid-template-columns:1fr}}

/* SSS */
.faq{display:grid;grid-template-columns:.7fr 1.3fr;gap:clamp(2rem,6vw,5rem)}
.faq details{border-top:1px solid var(--line)}
.faq details:last-child{border-bottom:1px solid var(--line)}
.faq summary{cursor:pointer;list-style:none;padding:1.15rem 2.5rem 1.15rem 0;position:relative;font:400 1.3rem/1.3 var(--serif)}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{content:"";position:absolute;right:.4rem;top:50%;width:11px;height:11px;border-right:1.5px solid var(--ink);border-bottom:1.5px solid var(--ink);transform:translateY(-70%) rotate(45deg);transition:transform .2s}
.faq details[open] summary::after{transform:translateY(-30%) rotate(-135deg)}
.faq details p{color:var(--ink-soft);padding:0 0 1.25rem;max-width:62ch}
@media (max-width:820px){.faq{grid-template-columns:1fr}}

/* Footer */
.foot{padding:4rem 0 2rem;border-top:1px solid var(--line)}
.foot__grid{display:grid;grid-template-columns:1.4fr 1fr 1fr;gap:2rem}
.foot .logo{display:inline-block;margin-bottom:.8rem}
.foot p,.foot li{color:var(--ink-soft);font-size:.95rem}
.foot h3{font:600 .95rem/1.4 var(--sans);margin-bottom:.75rem}
.foot ul{list-style:none;margin:0;padding:0}
.foot li{margin:.35rem 0}
.foot a{text-decoration:none}
.foot a:hover{text-decoration:underline}
.foot__bottom{margin-top:3rem;padding-top:1.25rem;border-top:1px solid var(--line);font-size:.85rem;color:var(--ink-soft);display:flex;justify-content:space-between;flex-wrap:wrap;gap:1rem}
@media (max-width:760px){.foot__grid{grid-template-columns:1fr}}

/* WhatsApp kısayol */
.wa-float{position:fixed;right:18px;bottom:18px;z-index:15;width:54px;height:54px;border-radius:50%;background:#1F7A4D;color:#fff;display:grid;place-items:center;box-shadow:0 6px 18px rgba(31,43,58,.25)}
.wa-float svg{width:28px;height:28px}

/* Işık kutusu */
.lb{position:fixed;inset:0;z-index:50;background:#141C27;display:none;grid-template-rows:auto 1fr auto;color:#EDF2F4}
.lb.is-open{display:grid}
.lb__bar{display:flex;justify-content:space-between;align-items:center;padding:1rem var(--gutter)}
.lb__title{font:400 1.6rem/1.2 var(--serif);margin:0}
.lb__n{font-size:.88rem;opacity:.75;margin-left:.75rem;font-family:var(--sans)}
.lb button{background:none;border:0;color:inherit;cursor:pointer;font:inherit}
.lb .lb__close{font-size:2.4rem;line-height:1;padding:.25rem .6rem}
.lb__stage{position:relative;display:grid;place-items:center;min-height:0;padding:0 clamp(3rem,7vw,5rem)}
.lb__stage img{max-width:100%;max-height:calc(100vh - 200px);max-height:calc(100dvh - 200px);object-fit:contain}
.lb__nav{position:absolute;top:50%;transform:translateY(-50%);font-size:2.6rem!important;padding:.5rem 1rem;opacity:.8}
.lb__nav:hover{opacity:1}
.lb__prev{left:.25rem}.lb__next{right:.25rem}
.lb__strip{display:flex;justify-content:center;gap:.5rem;padding:1rem var(--gutter) 1.25rem;overflow-x:auto}
.lb__strip button{width:64px;height:64px;padding:0;opacity:.5;border:2px solid transparent!important}
.lb__strip button[aria-current="true"]{opacity:1;border-color:var(--gold-soft)!important}
.lb__strip img{width:100%;height:100%;object-fit:cover}