* { box-sizing: border-box; }
body { margin: 0; min-height: 100vh; min-height: 100dvh; display: grid; place-items: center; padding: 32px 20px; background: #f5f7fb; color: #182333; font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif; }
.login-card { width: 100%; max-width: 440px; padding: 40px; background: #fff; border: 1px solid #e4e9f0; border-radius: 20px; box-shadow: 0 16px 48px #1d35400a; }
.brand-mark { display: grid; place-items: center; width: 46px; height: 46px; border-radius: 13px; background: #14796a; color: #fff; font-size: 23px; font-weight: 650; margin-bottom: 28px; }
.eyebrow { font-size: 10px; letter-spacing: 1.7px; font-weight: 650; color: #14796a; margin: 0 0 10px; }
h1 { font-size: 26px; line-height: 1.4; margin: 0 0 8px; letter-spacing: -.5px; }
.intro { color: #728094; font-size: 14px; line-height: 1.7; margin: 0 0 30px; }
label { display: block; font-size: 13px; font-weight: 600; margin-bottom: 8px; }
input { display: block; width: 100%; height: 46px; border: 1px solid #d8e0e9; border-radius: 9px; background: #fff; padding: 0 13px; color: #182333; font-size: 16px; margin-bottom: 20px; }
input:focus { outline: 3px solid #14796a18; border-color: #14796a; }
button { display: flex; justify-content: space-between; align-items: center; width: 100%; padding: 14px 16px; border: 0; border-radius: 9px; background: #14796a; color: #fff; font: inherit; font-size: 14px; font-weight: 600; cursor: pointer; }
button:hover { background: #10685b; }
button:focus-visible { outline: 3px solid #14796a40; outline-offset: 3px; }
button:disabled { opacity: .65; cursor: wait; }
.error { color: #b83232; font-size: 13px; line-height: 1.6; background: #fff2f2; border-radius: 8px; padding: 10px 12px; margin: 0 0 16px; }
.footnote { color: #8491a2; font-size: 12px; line-height: 1.8; margin: 24px 0 0; text-align: center; }
@media (max-width: 480px) { .login-card { padding: 30px 24px; } h1 { font-size: 24px; } }