/* teknOrtam keşif oyunları — ortak, GÖRSEL OLMAYAN temel (her oyun kendi tasarımını taşır) */
*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; font-size: clamp(16px, 0.9vw + 11px, 28px); }
body { margin: 0; min-height: 100vh; min-height: 100svh; -webkit-tap-highlight-color: transparent; overflow-x: hidden; line-height: 1.5; }
h1, h2, h3, p { margin: 0; }
button { font: inherit; color: inherit; cursor: pointer; }
a { color: inherit; }
:focus-visible { outline: 3px solid var(--accent, #2563eb); outline-offset: 3px; }
[hidden] { display: none !important; }
.sr-only { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; }

/* öğretmen paneli (ortak, sade; yazı tipi oyundan miras alır) */
.sheet-back { position: fixed; inset: 0; z-index: 90; background: rgba(0,0,0,.55); display: none; align-items: flex-end; justify-content: center; }
.sheet-back.open { display: flex; }
.sheet { width: min(760px, 100%); max-height: 88vh; max-height: 88svh; overflow: auto; background: #fff; color: #161616; font-family: inherit;
  padding: 1.3rem 1.4rem calc(1.6rem + env(safe-area-inset-bottom)); border-top: 6px solid var(--accent, #2563eb); }
@media (min-width: 900px) { .sheet-back { align-items: center; } .sheet { border-radius: 4px; } }
.sheet h2 { font-size: 1.4rem; margin-bottom: .5rem; }
.sheet h3 { font-size: .8rem; letter-spacing: .08em; text-transform: uppercase; margin: 1.1rem 0 .3rem; color: #555; }
.sheet p, .sheet li { font-size: .98rem; margin: .25rem 0; }
.sheet ul { padding-left: 1.2rem; margin: .3rem 0; }
.sheet .x { float: right; border: 1px solid #ccc; background: #fff; border-radius: 999px; width: 44px; height: 44px; font-size: 1.1rem; }
.sheet small { color: #555; }
@media (prefers-reduced-motion: reduce) { *, *::before, *::after { animation-duration: .001ms !important; transition-duration: .001ms !important; scroll-behavior: auto !important; } }