:root{font-family:Inter,system-ui,-apple-system,BlinkMacSystemFont,Segoe UI,sans-serif;line-height:1.5;font-weight:400;color:#0f172a;background-color:#f8fafc;text-rendering:optimizeLegibility;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;--color-bg: #f8fafc;--color-surface: #ffffff;--color-text: #0f172a;--color-muted: #475569;--color-border: #e2e8f0;--color-primary: #0f172a;--color-primary-contrast: #ffffff;--color-error-bg: #fef2f2;--color-error-border: #fecaca;--color-error-text: #b91c1c;--color-success-bg: #ecfdf5;--color-success-border: #a7f3d0;--color-success-text: #047857;--radius-lg: 16px;--radius-md: 12px;--radius-sm: 10px;--shadow-lg: 0 16px 30px rgba(15, 23, 42, .08), 0 6px 12px rgba(15, 23, 42, .06);--shadow-md: 0 12px 24px rgba(15, 23, 42, .08), 0 4px 10px rgba(15, 23, 42, .06)}*,*:before,*:after{box-sizing:border-box}body{margin:0;min-width:320px;min-height:100vh;background:var(--color-bg);color:var(--color-text)}#app{min-height:100vh}.page{min-height:100vh;padding:24px 16px 48px;background:var(--color-bg);display:flex;justify-content:center}.card{width:min(920px,100%);background:var(--color-surface);border-radius:var(--radius-lg);padding:24px;box-shadow:var(--shadow-lg);display:flex;flex-direction:column;gap:16px}.primary,.secondary{border-radius:var(--radius-sm);padding:12px 16px;font-weight:800;font-size:16px;border:1px solid var(--color-primary)}.primary{background:var(--color-primary);color:var(--color-primary-contrast)}.secondary{background:var(--color-surface);color:var(--color-primary)}.primary:disabled,.secondary:disabled{opacity:.6;cursor:not-allowed}.field{display:flex;flex-direction:column;gap:6px;font-weight:700;color:var(--color-text)}.field input,.field textarea,.field select{border:1px solid var(--color-border);border-radius:var(--radius-sm);padding:10px 12px;font-size:16px}.field input:focus,.field textarea:focus,.field select:focus{outline:2px solid var(--color-primary);outline-offset:1px;border-color:var(--color-primary)}.message{margin:0;padding:10px 12px;border-radius:var(--radius-sm);font-weight:700}.message.error{border:1px solid var(--color-error-border);background:var(--color-error-bg);color:var(--color-error-text)}.message.success{border:1px solid var(--color-success-border);background:var(--color-success-bg);color:var(--color-success-text)}