/* Okeyci Tayfa — temel stil */
:root{
  --ink:#14213d;--muted:#5b6478;--bg:#e8eef8;--card:#fff;--line:#e3e8f2;
  --blue:#0878c8;--blue-d:#055a98;--purple:#6c3fd1;--yellow:#ffc531;--orange:#ff7a2f;
  --rainbow:linear-gradient(110deg,#0878c8 0%,#6c3fd1 28%,#d94ca8 53%,#ff7a2f 78%,#ffc531 100%);
  --red:#e0383e;--tblue:#1f6fd1;--black:#1d1d24;--mint:#d9f5ea;--green:#0f6b4b;
  --radius:20px;--shadow:0 10px 30px rgba(20,33,61,.08);
  --font:"Nunito","Segoe UI",system-ui,-apple-system,Arial,sans-serif;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;font-family:var(--font);color:var(--ink);background:var(--bg);line-height:1.6;-webkit-font-smoothing:antialiased}
main{background:linear-gradient(125deg,#d9efff 0%,#e8ddff 25%,#ffe1ec 50%,#fff0d3 75%,#ddf8e9 100%)}
img{max-width:100%;height:auto;display:block}
a{color:var(--blue);text-decoration:none}
a:hover{text-decoration:underline}
h1,h2,h3{line-height:1.15;margin:0 0 .5em;font-weight:900;letter-spacing:-.02em}
h1{font-size:clamp(2.2rem,5vw,3.8rem)}
h2{font-size:clamp(1.7rem,3.4vw,2.6rem)}
h3{font-size:1.25rem}
p{margin:0 0 1em}
em{font-style:normal;color:var(--blue)}
.wrap{width:min(1180px,100% - 32px);margin-inline:auto}
.narrow{max-width:780px}
.section{padding:64px 0}
.skip{position:absolute;left:-999px;top:8px;background:#fff;padding:8px 14px;border-radius:8px;z-index:100}
.skip:focus{left:8px}
:focus-visible{outline:3px solid var(--yellow);outline-offset:2px}

/* Üst bant + header */
.topline{background:linear-gradient(100deg,var(--blue-d),var(--ink));color:#fff;font-size:.75rem;font-weight:900;letter-spacing:.08em;text-align:center;padding:7px 16px}
.topline span{display:inline-flex;align-items:center;margin-left:12px;padding:2px 10px;border:1px solid rgba(255,197,49,.55);border-radius:999px;background:rgba(255,197,49,.12);color:var(--yellow);letter-spacing:.06em}
header{position:sticky;top:0;z-index:50;display:flex;align-items:center;gap:24px;padding:10px max(16px,calc((100% - 1180px)/2));background:rgba(255,255,255,.95);backdrop-filter:blur(10px);border-bottom:1px solid var(--line)}
.brand{display:flex;align-items:center;gap:10px;color:var(--ink);font-weight:900;text-decoration:none!important}
.brand img{width:64px;height:auto}
.tayfa-wordmark{display:flex;align-items:baseline;gap:3px;line-height:1;font-size:1.05rem;letter-spacing:-.02em;white-space:nowrap}
.brand-number{color:var(--blue)}
.brand-name{color:var(--ink)}
.orange{color:var(--orange)}
header nav{display:flex;gap:22px;margin-left:auto}
header nav a{display:inline-flex;align-items:center;padding:8px 12px;border-radius:999px;background:linear-gradient(110deg,rgba(8,120,200,.12),rgba(108,63,209,.12),rgba(255,122,47,.12));color:var(--blue-d);font-weight:800;font-size:.95rem;transition:background .15s,color .15s}
header nav a:hover{background:var(--rainbow);color:#fff;text-decoration:none}
.menu-toggle{display:none;background:var(--rainbow);border:0;border-radius:10px;font-size:1.3rem;padding:4px 12px;cursor:pointer;color:#fff}

/* Butonlar */
.button{display:inline-flex;align-items:center;gap:8px;background:var(--rainbow);color:#fff;font-weight:900;padding:14px 26px;border-radius:999px;border:0;cursor:pointer;font-size:1rem;font-family:inherit;box-shadow:0 6px 0 rgba(20,33,61,.2);transition:transform .15s,filter .15s}
.button:hover{text-decoration:none;transform:translateY(-2px);filter:saturate(1.15) brightness(1.05)}
.button.small{padding:9px 18px;font-size:.88rem;box-shadow:none}
.outline-button{display:inline-flex;align-items:center;gap:8px;border:2px solid transparent;background:linear-gradient(rgba(255,255,255,.86),rgba(255,255,255,.86)) padding-box,var(--rainbow) border-box;padding:12px 24px;border-radius:999px;font-weight:900;color:var(--blue-d);transition:transform .15s,filter .15s}
.outline-button:hover{text-decoration:none;filter:saturate(1.25);transform:translateY(-2px)}
.text-link{font-weight:800}
.actions{display:flex;flex-wrap:wrap;gap:14px;align-items:center;margin:26px 0}

.eyebrow,.color-kicker,.game-kicker{display:inline-block;font-size:.75rem;font-weight:900;letter-spacing:.14em;text-transform:uppercase;color:var(--blue);margin-bottom:10px}
.color-kicker{color:var(--purple)}

/* Taşlar */
.tiles{display:inline-flex;gap:6px}
.tile{width:44px;height:60px;border-radius:9px;background:linear-gradient(#fffdf6,#f1ead8);box-shadow:0 4px 0 #cdbf9f,0 8px 14px rgba(0,0,0,.18);display:flex;flex-direction:column;align-items:center;justify-content:center;font-weight:900;font-size:1.3rem;line-height:1}
.tile i{font-style:normal;font-size:.6rem;margin-top:4px}
.tile.red{color:var(--red)}.tile.blue{color:var(--tblue)}.tile.black{color:var(--black)}

/* Kartlar */
.section-head{display:flex;justify-content:space-between;align-items:flex-end;gap:24px;flex-wrap:wrap;margin-bottom:32px}
.center-head{text-align:center;max-width:640px;margin:0 auto 40px}
.center-head h2 span,.go-copy h2 span,.section-head h2 span{color:var(--orange)}
.card-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(280px,1fr));gap:24px}
.guide-card{display:flex;flex-direction:column;background:var(--card);border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow);color:var(--ink);transition:transform .2s}
.guide-card:hover{text-decoration:none;transform:translateY(-4px)}
.guide-card[hidden]{display:none}
.card-art{position:relative;height:160px;display:flex;align-items:center;justify-content:center}
.art-0{background:linear-gradient(135deg,#0878c8,#35a7f0)}.art-1{background:linear-gradient(135deg,#6c3fd1,#9b72ff)}
.art-2{background:linear-gradient(135deg,#ff7a2f,#ffc531)}.art-3{background:linear-gradient(135deg,#0f6b4b,#2fbf85)}
.art-number{position:absolute;top:12px;right:16px;color:#fff;font-weight:900;opacity:.8}
.card-content{padding:22px;display:flex;flex-direction:column;flex:1}
.card-content p{color:var(--muted);font-size:.95rem}
.card-bottom{margin-top:auto;font-size:.75rem;font-weight:900;letter-spacing:.12em;color:var(--blue)}

/* SSS */
details{background:var(--card);border:1px solid var(--line);border-radius:14px;margin-bottom:12px;padding:0 20px}
summary{cursor:pointer;list-style:none;display:flex;justify-content:space-between;gap:16px;padding:18px 0;font-weight:800}
summary::-webkit-details-marker{display:none}
summary span{color:var(--orange);font-size:1.3rem;transition:transform .2s}
details[open] summary span{transform:rotate(45deg)}
details p{color:var(--muted)}

/* İç sayfa */
.page-intro{padding:56px 0 24px}
.page-intro p{font-size:1.15rem;color:var(--muted);max-width:640px}
.crumb{font-size:.85rem;color:var(--muted);margin-bottom:18px}
.library .search-label{display:block;font-weight:800;margin-bottom:16px}
.library input[type=search]{display:block;width:100%;margin-top:8px;padding:14px 18px;border:2px solid var(--line);border-radius:14px;font:inherit;background:#fff}
.filters{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:12px}
.filters button{border:2px solid transparent;background:linear-gradient(#fff,#fff) padding-box,var(--rainbow) border-box;border-radius:999px;padding:8px 18px;font:inherit;font-weight:800;cursor:pointer;color:var(--blue-d);transition:background .15s,color .15s}
.filters button.active{background:var(--rainbow);border-color:transparent;color:#fff}
#result-count{color:var(--muted);font-weight:700}

.article-layout{display:grid;grid-template-columns:minmax(0,1fr) 300px;gap:48px;padding:24px 0 48px}
.article-layout article>section{margin-bottom:36px}
.article-layout article p{font-size:1.08rem}
.article-meta{font-size:.78rem;font-weight:900;letter-spacing:.12em;color:var(--muted);margin-bottom:20px}
.article-meta span{margin-left:10px;opacity:.7}
.article-visual{display:flex;align-items:center;gap:28px;flex-wrap:wrap;background:linear-gradient(135deg,var(--blue),var(--purple));color:#fff;border-radius:var(--radius);padding:32px;margin-bottom:40px}
.exercise{background:var(--mint);border-radius:var(--radius);padding:28px;margin:24px 0}
.rule-note{font-size:.92rem!important;color:var(--muted);border-left:4px solid var(--yellow);padding-left:14px}
aside{position:sticky;top:96px;align-self:start;display:flex;flex-direction:column;gap:10px;background:#fff;border-radius:var(--radius);padding:24px;box-shadow:var(--shadow)}
aside>a{color:var(--ink);font-weight:700;font-size:.95rem}
.aside-cta{background:var(--ink);color:#fff;border-radius:14px;padding:20px;margin:10px 0;display:flex;flex-direction:column;gap:14px}

.tool-layout{display:grid;grid-template-columns:1fr 1fr;gap:48px;padding:24px 0 64px;align-items:start}
.tool-panel{background:#fff;border-radius:var(--radius);padding:32px;box-shadow:var(--shadow)}
.tool-panel label{display:block;font-weight:800;margin-bottom:14px}
.tool-panel input[type=number]{display:block;width:100%;margin-top:6px;padding:12px 14px;border:2px solid var(--line);border-radius:12px;font:inherit;font-weight:800}
.input-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:12px}
#calc-result,#quiz-result{display:block;margin-top:20px;padding:16px;border-radius:12px;background:var(--mint);font-weight:800}
#quiz-result:empty{display:none}
fieldset{border:1px solid var(--line);border-radius:14px;padding:16px 20px;margin:0 0 16px}
legend{font-weight:900;padding:0 6px}
.quiz-option{display:flex!important;gap:10px;align-items:center;font-weight:600!important;margin:8px 0!important;cursor:pointer}
fieldset.correct{border-color:#2fbf85;background:#effbf5}
fieldset.wrong{border-color:var(--red);background:#fff1f1}
.reset{margin-top:14px;background:none;border:0;color:var(--purple);font:inherit;font-weight:900;cursor:pointer}
.reset:hover{color:var(--orange);text-decoration:underline}
.prose{padding-bottom:64px}
.prose h2{margin-top:36px}
.sitemap-list{display:grid;grid-template-columns:repeat(auto-fill,minmax(300px,1fr));gap:12px}
.sitemap-list a{display:flex;justify-content:space-between;background:#fff;border:1px solid var(--line);border-radius:12px;padding:14px 18px;color:var(--ink);font-weight:700}

/* Footer */
.last-call{display:flex;justify-content:space-between;align-items:center;gap:24px;flex-wrap:wrap;background:linear-gradient(135deg,var(--blue),var(--purple));color:#fff;padding:56px max(16px,calc((100% - 1180px)/2))}
.last-call h2{margin:0}.last-call em{color:var(--yellow)}.last-call .eyebrow{color:#fff;opacity:.8}
footer{background:var(--ink);color:#c9d1e3;padding:48px max(16px,calc((100% - 1180px)/2)) 24px}
.footer-main{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:32px;align-items:start}
footer .brand{color:#fff;font-size:1.4rem}
footer a{color:#c9d1e3;display:block;margin-bottom:8px}
.footer-bottom{display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;border-top:1px solid rgba(255,255,255,.12);margin-top:32px;padding-top:20px;font-size:.85rem}
.footer-bottom a{display:inline;margin:0}

/* Mobil */
@media (max-width:900px){
  header{flex-wrap:wrap;gap:12px}
  .menu-toggle{display:block;margin-left:auto}
  header nav{display:none;order:5;width:100%;flex-direction:column;gap:4px;margin:0;padding:8px 0}
  header.open nav{display:flex}
  header nav a{padding:10px 12px}
  header>.button.small{display:none}
  .article-layout,.tool-layout{grid-template-columns:1fr}
  aside{position:static}
  .footer-main{grid-template-columns:1fr 1fr}
}
@media (max-width:560px){
  .input-grid{grid-template-columns:1fr}
  .footer-main{grid-template-columns:1fr}
  .section{padding:44px 0}
  .tile{width:36px;height:50px;font-size:1.05rem}
  .topline span{display:flex;width:fit-content;margin:4px auto 0}
}