:root{--background: 42 30% 97%;--foreground: 168 18% 12%;--primary: 168 68% 24%;--primary-foreground: 40 33% 96%;--muted-foreground: 158 8% 43%;--accent: 154 32% 91%;--border: 155 16% 86%;--input: 155 16% 82%;--ring: 168 62% 34%}body{margin:0;background:hsl(var(--background));color:hsl(var(--foreground));font-family:Inter,SF Pro Text,Noto Sans SC,system-ui,sans-serif}button,input{font:inherit}button{cursor:pointer}.auth-shell-upgrade{display:grid;min-height:100vh;place-items:center;background:radial-gradient(circle at 50% 12%,rgba(35,110,91,.13),transparent 34%),hsl(var(--background));padding:32px}.auth-panel-upgrade{display:grid;width:min(420px,100%);gap:20px;border:1px solid hsl(var(--border));border-radius:8px;background:#fffffff0;box-shadow:0 24px 80px #192d2624;padding:28px}.auth-brand-upgrade{display:flex;gap:12px;align-items:center}.auth-brand-upgrade>span{display:inline-flex;align-items:center;justify-content:center;width:38px;height:38px;border-radius:8px;background:hsl(var(--primary));color:hsl(var(--primary-foreground))}.auth-brand-upgrade b,.auth-brand-upgrade small{display:block}.auth-brand-upgrade b{font-size:16px}.auth-brand-upgrade small,.auth-copy-upgrade p,.auth-hint-upgrade{color:hsl(var(--muted-foreground))}.auth-copy-upgrade{display:grid;gap:8px}.auth-copy-upgrade h1{margin:0;font-size:28px;letter-spacing:0}.auth-copy-upgrade p{margin:0;font-size:14px;line-height:1.7}.auth-mode-upgrade{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:6px;border:1px solid hsl(var(--border));border-radius:8px;background:hsl(var(--accent) / .42);padding:4px}.auth-mode-upgrade button,.auth-submit-upgrade{min-height:40px;border:0;border-radius:7px;font-weight:700}.auth-mode-upgrade button{background:transparent;color:hsl(var(--muted-foreground))}.auth-mode-upgrade button.active{background:#fff;color:hsl(var(--primary));box-shadow:0 6px 18px #1b3d3414}.auth-form-upgrade{display:grid;gap:12px}.auth-form-upgrade label{display:grid;gap:7px}.auth-form-upgrade label span{color:hsl(var(--muted-foreground));font-size:12px;font-weight:700}.auth-form-upgrade input{min-height:42px;border:1px solid hsl(var(--input));border-radius:8px;background:#fff;padding:0 12px;outline:none}.auth-form-upgrade input:focus{border-color:hsl(var(--ring));box-shadow:0 0 0 3px hsl(var(--ring) / .12)}.auth-submit-upgrade{background:hsl(var(--primary));color:hsl(var(--primary-foreground))}.auth-submit-upgrade:disabled{cursor:wait;opacity:.72}.auth-message-upgrade,.auth-hint-upgrade{margin:0;font-size:13px;line-height:1.6}.auth-message-upgrade{border:1px solid hsl(var(--border));border-radius:8px;background:#fff;padding:10px 12px}.auth-message-upgrade.success{border-color:#2aac8147;background:#e1f4ec}.auth-message-upgrade.error{border-color:#dc282842;background:#dc282812}