:root { color-scheme: dark; font-family: Arial, sans-serif; color: #fff; background: #123661; }
* { box-sizing: border-box; user-select: none; -webkit-user-select: none; }
body { margin: 0; min-height: 100vh; min-height: 100svh; display: grid; place-items: center; padding: 24px 16px; background: radial-gradient(ellipse at top, #358bd0, transparent 70%), linear-gradient(145deg, #184a7d, #112c50); }
.kapu { width: min(520px, 100%); padding: clamp(24px, 6vw, 44px); border: 3px solid #ffda54; border-radius: 28px; background: #173d72; box-shadow: 0 9px 0 #082145, 0 22px 55px #001b3d66; text-align: center; }
.marka { margin: 0; color: #ffdd59; font-weight: 900; font-size: 24px; }
.jel { display: block; margin-top: 20px; color: #ffdd59; font-size: 48px; }
h1 { margin: 12px 0; font-size: clamp(26px, 6vw, 35px); line-height: 1.15; }
p { line-height: 1.5; }
form { margin-top: 26px; }
label { display: block; margin-bottom: 8px; text-align: left; font-weight: 700; }
input, button { width: 100%; min-height: 50px; border-radius: 12px; font: inherit; }
input { padding: 12px 15px; border: 2px solid #9dcfff; color: #123661; background: #fff; }
input:focus-visible, button:focus-visible { outline: 3px solid #ffdf5c; outline-offset: 4px; }
button { margin-top: 20px; padding: 13px; border: 2px solid #80bdff; background: #277edf; box-shadow: 0 5px #0b2854; color: #fff; font-weight: 900; cursor: pointer; }
button:hover { background: #378ff2; }
.hiba { padding: 12px; border: 2px solid #ff9292; border-radius: 12px; background: #7b2030; color: #fff; font-weight: 700; }