:root { color-scheme: dark; font-family: Inter, ui-sans-serif, system-ui, sans-serif; background: #0d100e; color: #f3f6f3; }
* { box-sizing: border-box; }
body { min-height: 100vh; margin: 0; display: grid; place-items: center; padding: 24px; background: radial-gradient(circle at 50% 0%, #24362c, #0d100e 55%); }
.login-card { width: min(440px, 100%); padding: 36px; border: 1px solid #33433a; border-radius: 24px; background: rgba(20, 25, 22, .96); box-shadow: 0 24px 80px rgba(0,0,0,.4); }
.mark { width: 48px; height: 48px; display: grid; place-items: center; border-radius: 14px; background: #d7ff8a; color: #12200f; font-weight: 800; font-size: 24px; }
.overline { margin: 22px 0 6px; color: #a6c2af; text-transform: uppercase; letter-spacing: .14em; font-size: 12px; font-weight: 700; }
h1 { margin: 0 0 10px; font-size: clamp(28px, 7vw, 40px); }
p { color: #aebbb3; line-height: 1.55; }
form { display: grid; gap: 18px; margin-top: 28px; }
label { display: grid; gap: 8px; color: #dce7df; font-weight: 650; }
input { width: 100%; padding: 13px 14px; border: 1px solid #405047; border-radius: 12px; background: #101512; color: #fff; font: inherit; }
input:focus { outline: 2px solid #d7ff8a; outline-offset: 2px; }
button { padding: 14px; border: 0; border-radius: 12px; background: #d7ff8a; color: #10200d; font: inherit; font-weight: 800; cursor: pointer; }
.error { display: none; margin: -4px 0; color: #ffb4a8; }
body.login-error .error { display: block; }