/* Sign-in and error surfaces, drawn to the Store Admin's sign-in screen (design-tokens.css is linked
   ahead of this file): the dark brand panel on the left, the form on a white card on the right. */
.auth-surface{margin:0;min-width:320px;background:var(--page);color:var(--text);font-family:var(--font-sans);font-size:var(--text-base);line-height:var(--leading-normal);-webkit-font-smoothing:antialiased}
.auth-surface *{box-sizing:border-box}
.auth-surface [hidden]{display:none!important}
.auth-surface .auth-skip{position:fixed;left:12px;top:12px;z-index:var(--z-skip-link);transform:translateY(-180%);padding:10px 14px;border-radius:var(--radius-sm);background:var(--surface);color:var(--text);font-weight:var(--weight-semibold);box-shadow:var(--shadow-md)}
.auth-surface .auth-skip:focus{transform:none}
.auth-surface .auth-layout{min-height:100vh;display:grid;grid-template-columns:minmax(300px,47%) minmax(0,1fr)}

/* Brand panel --------------------------------------------------------------------------------- */
.auth-surface .auth-brand{display:flex;flex-direction:column;justify-content:space-between;gap:32px;padding:56px 48px 48px;background:var(--chrome);color:var(--chrome-on)}
.auth-surface .auth-brand a{display:inline-flex;align-items:center;min-height:44px;gap:12px;align-self:flex-start;color:var(--chrome-on);font-size:21px;font-weight:var(--weight-black);letter-spacing:var(--tracking-tight);text-decoration:none}
.auth-surface .brand-mark{position:relative;width:40px;height:40px;flex:0 0 40px;border-radius:var(--radius-circle);background:var(--brand)}
.auth-surface .brand-mark i{position:absolute;display:block;border-radius:2px;background:var(--chrome)}
.auth-surface .brand-mark i:nth-child(1){left:9px;top:12px;width:22px;height:5px}
.auth-surface .brand-mark i:nth-child(2){left:17px;top:12px;width:5px;height:18px}
.auth-surface .brand-mark i:nth-child(3){left:23px;top:20px;width:8px;height:5px;background:var(--chrome-on)}
.auth-surface .auth-brand-copy{display:grid;gap:14px;max-width:440px}
.auth-surface .auth-brand-copy p{margin:0}
.auth-surface .auth-brand-realm{color:var(--brand-on-dark);font-family:var(--font-mono);font-size:var(--text-xs);letter-spacing:var(--tracking-caps);text-transform:uppercase}
.auth-surface .auth-brand-copy p:not(.auth-brand-realm){font-size:clamp(28px,3.2vw,34px);font-weight:var(--weight-black);letter-spacing:var(--tracking-display);line-height:var(--leading-tight)}
.auth-surface .auth-brand-foot{margin:0;color:var(--chrome-text-muted);font-family:var(--font-mono);font-size:var(--text-xs)}

/* Form panel ---------------------------------------------------------------------------------- */
.auth-surface .auth-panel{position:relative;display:flex;min-width:0;align-items:center;justify-content:center;padding:96px 24px 48px;background:var(--surface-raised)}
.auth-surface .auth-locale{display:inline-flex;align-items:center;min-height:44px;position:absolute;top:24px;right:32px;gap:8px;padding:0 14px;border:1px solid var(--line);border-radius:var(--radius-sm);background:var(--surface);color:var(--text-label);font-size:var(--text-sm);font-weight:var(--weight-semibold);text-decoration:none}
.auth-surface .auth-locale::before{content:"";width:12px;height:12px;border:1.5px solid var(--brand-focus);border-radius:var(--radius-circle)}
.auth-surface .auth-locale:hover{border-color:var(--brand-focus);color:var(--brand-link)}
.auth-surface .auth-column{display:grid;gap:24px;width:min(420px,100%)}
.auth-surface .auth-heading{display:grid;gap:8px}
.auth-surface .auth-realm{margin:0;color:var(--text-muted);font-family:var(--font-mono);font-size:10.5px;letter-spacing:.14em;text-transform:uppercase}
.auth-surface h1{margin:0;font-size:var(--text-2xl);font-weight:var(--weight-black);letter-spacing:var(--tracking-display);line-height:var(--leading-tight)}
.auth-surface .auth-intro{margin:0;color:var(--text-soft);font-size:var(--text-md)}
.auth-surface .auth-card{padding:28px;border:1px solid var(--line-card);border-radius:var(--radius);background:var(--surface);box-shadow:var(--shadow-card)}
.auth-surface form{display:grid;gap:18px}
.auth-surface label{display:grid;gap:8px;color:var(--text-label);font-size:var(--text-sm);font-weight:var(--weight-bold)}
.auth-surface input,.auth-surface button{width:100%;min-height:48px;padding:13px 14px;border:1.5px solid var(--line);border-radius:var(--radius-sm);background:var(--surface-input);color:var(--text);font-family:inherit;font-size:var(--text-base);font-weight:var(--weight-medium)}
.auth-surface input::placeholder{color:var(--text-placeholder)}
.auth-surface input:focus{border-color:var(--brand-focus);background:var(--surface);outline:none}
.auth-surface input[aria-invalid=true]{border-color:var(--danger)}
.auth-surface .password-field{position:relative;display:block}
.auth-surface .password-field input{padding-right:96px}
.auth-surface .password-toggle{position:absolute;right:1px;top:1px;width:auto;min-height:44px;padding:5px 14px;border:0;background:transparent;color:var(--brand-link);font-size:var(--text-sm);font-weight:var(--weight-bold);cursor:pointer}
.auth-surface .password-toggle:hover{color:var(--brand-link-hover)}
.auth-surface button[type=submit]{min-height:50px;margin-top:4px;border-color:var(--action);background:var(--action);color:var(--action-on);font-weight:var(--weight-bold);cursor:pointer;transition:background var(--transition-fast),border-color var(--transition-fast)}
.auth-surface button[type=submit]:hover{border-color:var(--action-hover);background:var(--action-hover)}
.auth-surface button[type=submit]:active{background:var(--action-active)}
.auth-surface button:disabled{opacity:.6;cursor:wait}
.auth-surface .remember{display:flex;min-height:44px;align-items:center;gap:10px;font-weight:var(--weight-semibold)}
.auth-surface .remember input{width:18px;min-height:18px;height:18px;padding:0;accent-color:var(--action)}
.auth-surface .auth-error{display:grid;gap:3px;margin:0 0 18px;padding:12px 14px;border:1px solid var(--danger-border);border-left:3px solid var(--danger);border-radius:var(--radius-sm);background:var(--danger-bg);color:var(--danger);font-size:var(--text-sm)}
.auth-surface .auth-return{display:inline-flex;align-items:center;min-height:44px;color:var(--brand-link);font-weight:var(--weight-bold)}
.auth-surface .auth-panel a:not([class]){color:var(--brand-link)}
.auth-surface .auth-wordmark em{font-style:normal;color:var(--brand-on-dark)}
.auth-surface :focus-visible{outline:var(--focus-ring);outline-offset:var(--focus-offset)}
@media(max-width:860px){
 .auth-surface .auth-layout{grid-template-columns:1fr}
 .auth-surface .auth-brand{min-height:0;gap:18px;padding:24px 20px}
 .auth-surface .auth-brand-copy p:not(.auth-brand-realm){font-size:20px}
 .auth-surface .auth-brand-foot{display:none}
 .auth-surface .auth-panel{padding:80px 16px 40px}
 .auth-surface .auth-locale{top:16px;right:16px}
 .auth-surface .auth-card{padding:20px}
}
@media(prefers-reduced-motion:reduce){.auth-surface *{scroll-behavior:auto!important;transition:none!important}}