:root { color-scheme: light; font-family: Inter, "Segoe UI", "Microsoft YaHei", sans-serif; letter-spacing: 0; }
* { box-sizing: border-box; }
body { margin: 0; min-height: 100vh; background: #edf1ef; color: #18231f; }
.login-shell { min-height: 100vh; display: grid; place-items: center; padding: 28px; }
.login-panel { width: min(100%, 390px); border: 1px solid #d4dcd8; border-top: 4px solid #c49a45; border-radius: 6px; background: white; box-shadow: 0 18px 50px #18372c18; padding: 30px; }
header { display: flex; align-items: center; gap: 13px; padding-bottom: 22px; border-bottom: 1px solid #e2e7e4; }
.brand-mark { display: grid; place-items: center; width: 42px; height: 42px; border-radius: 5px; background: #12352d; color: white; font-size: 13px; font-weight: 750; }
h1 { margin: 0; font-size: 19px; line-height: 1.4; }
header p { margin: 2px 0 0; color: #65716c; font-size: 12px; }
form { padding-top: 8px; }
label { display: block; margin-top: 16px; color: #46534e; font-size: 12px; font-weight: 650; }
input { width: 100%; height: 42px; margin-top: 6px; border: 1px solid #b9c5c0; border-radius: 5px; padding: 0 11px; background: white; color: #18231f; font: inherit; letter-spacing: 0; }
input:focus { outline: 0; border-color: #32755d; box-shadow: 0 0 0 3px #2d80621a; }
#login-error { min-height: 20px; margin: 12px 0 4px; color: #a63232; font-size: 12px; }
button { width: 100%; height: 42px; border: 0; border-radius: 5px; background: #16684b; color: white; font: inherit; font-weight: 700; letter-spacing: 0; cursor: pointer; }
button:hover { background: #0e4f39; }
button:disabled { cursor: wait; opacity: .65; }