:root{--color-primary: #4f46e5;--color-primary-dark: #4338ca;--color-primary-light: #e0e7ff;--color-surface: #ffffff;--color-surface-muted: #f8fafc;--color-border: #e2e8f0;--color-text: #1e293b;--color-text-muted: #64748b;--color-error: #dc2626;--color-error-bg: #fef2f2;--color-success: #16a34a;--color-success-bg: #f0fdf4;--font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", system-ui, sans-serif;--radius: .5rem;--radius-lg: .75rem;--shadow: 0 1px 3px 0 rgb(0 0 0 / .1), 0 1px 2px -1px rgb(0 0 0 / .1);--shadow-md: 0 4px 6px -1px rgb(0 0 0 / .1), 0 2px 4px -2px rgb(0 0 0 / .1);--shadow-lg: 0 10px 15px -3px rgb(0 0 0 / .1), 0 4px 6px -4px rgb(0 0 0 / .1)}*,*:before,*:after{box-sizing:border-box}html{font-size:16px;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}body{margin:0;font-family:var(--font-sans);color:var(--color-text);background:var(--color-surface);line-height:1.6}img,svg{display:block;max-width:100%}h1,h2,h3,h4,h5,h6{margin:0 0 1rem;line-height:1.25;font-weight:700;color:var(--color-text)}h1{font-size:clamp(1.75rem,4vw,2.5rem)}h2{font-size:clamp(1.375rem,3vw,1.875rem)}h3{font-size:1.25rem}p{margin:0 0 1rem}p:last-child{margin-bottom:0}a{color:var(--color-primary);text-decoration:none}a:hover{text-decoration:underline}.container{max-width:1100px;margin:0 auto;padding:0 1.5rem}.page{padding:3rem 1.5rem;max-width:1100px;margin:0 auto}.page--narrow{max-width:680px}.form-group{display:flex;flex-direction:column;gap:.375rem;margin-bottom:1.25rem}.form-label{font-size:.875rem;font-weight:600;color:var(--color-text)}.form-control{width:100%;padding:.625rem .875rem;border:1px solid var(--color-border);border-radius:var(--radius);font-family:var(--font-sans);font-size:1rem;color:var(--color-text);background:var(--color-surface);transition:border-color .15s ease,box-shadow .15s ease;outline:none}.form-control::placeholder{color:var(--color-text-muted)}.form-control:focus{border-color:var(--color-primary);box-shadow:0 0 0 3px var(--color-primary-light)}.form-control.is-invalid{border-color:var(--color-error)}.form-control.is-invalid:focus{box-shadow:0 0 0 3px #dc262626}textarea.form-control{resize:vertical;min-height:120px}.form-error{font-size:.8125rem;color:var(--color-error)}.btn{display:inline-flex;align-items:center;justify-content:center;gap:.5rem;padding:.625rem 1.25rem;border:1px solid transparent;border-radius:var(--radius);font-family:var(--font-sans);font-size:1rem;font-weight:600;cursor:pointer;text-decoration:none;transition:background .15s ease,border-color .15s ease,color .15s ease,box-shadow .15s ease;white-space:nowrap}.btn:hover{text-decoration:none}.btn:disabled{opacity:.6;cursor:not-allowed}.btn-primary{background:var(--color-primary);color:#fff;border-color:var(--color-primary)}.btn-primary:hover:not(:disabled){background:var(--color-primary-dark);border-color:var(--color-primary-dark)}.btn-outline{background:transparent;color:var(--color-primary);border-color:var(--color-primary)}.btn-outline:hover:not(:disabled){background:var(--color-primary-light)}.btn-lg{padding:.75rem 1.75rem;font-size:1.0625rem}.alert{padding:.875rem 1rem;border-radius:var(--radius);font-size:.9375rem;margin-bottom:1.25rem}.alert-error{background:var(--color-error-bg);color:var(--color-error);border:1px solid rgba(220,38,38,.2)}.alert-success{background:var(--color-success-bg);color:var(--color-success);border:1px solid rgba(22,163,74,.2)}.card{background:var(--color-surface);border:1px solid var(--color-border);border-radius:var(--radius-lg);box-shadow:var(--shadow);padding:2rem}