:root { color: #202020; background: #fff; font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif; }
* { box-sizing: border-box; }
body { min-height: 100vh; margin: 0; background: #fff; }
.shell { min-height: 100vh; display: grid; place-items: center; padding: 28px; }
.login-card { width: min(100%, 372px); }
.mark { width: 32px; height: 32px; display: grid; place-items: center; margin-bottom: 30px; background: #202020; color: #fff; border-radius: 7px; font-size: 15px; font-weight: 650; letter-spacing: -0.06em; }
.eyebrow { margin: 0 0 12px; color: #767676; font-size: 10px; font-weight: 700; letter-spacing: .11em; }
h1 { margin: 0; color: #191919; font-size: clamp(34px, 6vw, 42px); font-weight: 680; letter-spacing: -0.055em; line-height: 1.08; }
.intro { margin: 13px 0 31px; color: #686868; font-size: 14px; line-height: 1.55; }
form { display: grid; gap: 9px; }
label { margin-top: 10px; color: #373737; font-size: 12px; font-weight: 560; }
input { width: 100%; height: 42px; padding: 0 12px; border: 1px solid #dedede; border-radius: 6px; outline: none; color: #202020; font: inherit; font-size: 14px; transition: border-color .16s, box-shadow .16s; }
input:focus { border-color: #202020; box-shadow: 0 0 0 3px #f0f0f0; }
button { height: 42px; margin-top: 18px; border: 0; border-radius: 6px; background: #202020; color: #fff; font: inherit; font-size: 14px; font-weight: 560; cursor: pointer; transition: background .16s; }
button:hover { background: #3d3d3d; }
.error { margin: 8px 0 -3px; color: #c63131; font-size: 12px; line-height: 1.4; }
.studio { width: min(100%, 660px); }
.studio-top { display: flex; align-items: center; gap: 9px; font-size: 14px; font-weight: 620; }
.studio-top .mark { width: 25px; height: 25px; margin: 0; border-radius: 5px; font-size: 12px; }
.private { margin-left: auto; color: #777; font-size: 11px; font-weight: 500; }
.rule { height: 1px; margin: 37px 0 55px; background: #e8e8e8; }
.studio .intro { max-width: 460px; margin-bottom: 40px; }
.next { display: grid; gap: 6px; padding: 17px 0; border-top: 1px solid #e8e8e8; border-bottom: 1px solid #e8e8e8; font-size: 13px; }
.next span { color: #888; font-size: 11px; }
@media (prefers-reduced-motion: no-preference) { .login-card { animation: arrive .38s ease-out both; } @keyframes arrive { from { opacity: 0; transform: translateY(8px); } to { opacity: 1; transform: translateY(0); } } }