:root{--color-primary: #2563eb;--color-primary-hover: #1d4ed8;--color-background: #f8fafc;--color-surface: #ffffff;--color-surface-raised: #ffffff;--color-text-primary: #1e293b;--color-text-secondary: #64748b;--color-text-muted: #94a3b8;--color-text-tertiary: #cbd5e1;--color-border: #e2e8f0;--color-success: #10b981;--color-error: #ef4444;--color-warning: #f59e0b;--color-focus-ring: rgba(37, 99, 235, .1);--spacing-xs: 4px;--spacing-sm: 8px;--spacing-md: 16px;--spacing-lg: 24px;--spacing-xl: 32px;--radius-sm: 4px;--radius-md: 6px;--radius-lg: 8px;--shadow-sm: 0 1px 2px rgba(0, 0, 0, .05);--shadow-md: 0 1px 3px rgba(0, 0, 0, .1)}[data-theme=dark]{--color-primary: #3b82f6;--color-primary-hover: #60a5fa;--color-background: #121214;--color-surface: #1c1c1f;--color-surface-raised: #2a2a2d;--color-text-primary: #ececef;--color-text-secondary: #8e8e93;--color-text-muted: #636366;--color-text-tertiary: #48484a;--color-border: #38383a;--color-success: #34d399;--color-error: #f87171;--color-warning: #fbbf24;--color-focus-ring: rgba(59, 130, 246, .3);--shadow-sm: 0 1px 3px rgba(0, 0, 0, .4);--shadow-md: 0 2px 6px rgba(0, 0, 0, .5)}*,*:before,*:after{box-sizing:border-box}html,body{height:100%;overflow:hidden}body{margin:0;font-family:Inter,-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,sans-serif;font-size:14px;line-height:1.5;color:var(--color-text-primary);background-color:var(--color-background);transition:background-color .2s,color .2s}h1,h2,h3,h4,h5,h6{margin:0;font-weight:600}h1{font-size:24px}h2{font-size:20px}h3{font-size:16px}input,textarea,select{font-family:inherit;font-size:14px}input[type=text],input[type=email],input[type=tel],textarea{width:100%;padding:10px 12px;border:1px solid var(--color-border);border-radius:var(--radius-md);background:var(--color-surface);color:var(--color-text-primary);transition:border-color .15s,box-shadow .15s}input[type=text]:focus,input[type=email]:focus,input[type=tel]:focus,textarea:focus{outline:none;border-color:var(--color-primary);box-shadow:0 0 0 3px var(--color-focus-ring)}select{color:var(--color-text-primary);background-color:var(--color-surface)}textarea{min-height:120px;resize:vertical}label{display:block;font-weight:500;margin-bottom:var(--spacing-xs);color:var(--color-text-primary)}.helper-text{font-size:13px;color:var(--color-text-secondary);margin-top:var(--spacing-xs)}button{font-family:inherit;color:inherit;cursor:pointer}.btn{display:inline-flex;align-items:center;justify-content:center;height:40px;padding:0 16px;font-size:14px;font-weight:500;border-radius:var(--radius-md);border:none;transition:background-color .15s,opacity .15s}.btn:disabled{opacity:.6;cursor:not-allowed}.btn-primary{background-color:var(--color-primary);color:#fff}.btn-primary:hover:not(:disabled){background-color:var(--color-primary-hover)}.btn-secondary{background-color:var(--color-surface);color:var(--color-text-primary);border:1px solid var(--color-border)}.btn-secondary:hover:not(:disabled){background-color:var(--color-background)}.card{background:var(--color-surface);border:1px solid var(--color-border);border-radius:var(--radius-lg);padding:var(--spacing-lg);box-shadow:var(--shadow-sm)}.section-header{font-size:12px;font-weight:600;text-transform:uppercase;letter-spacing:.05em;color:var(--color-text-secondary);margin-bottom:var(--spacing-md)}.form-group{margin-bottom:var(--spacing-lg)}.toast{position:fixed;bottom:var(--spacing-lg);right:var(--spacing-lg);padding:var(--spacing-md) var(--spacing-lg);border-radius:var(--radius-md);color:#fff;font-weight:500;box-shadow:var(--shadow-md);z-index:1000;animation:slideIn .3s ease}.toast-success{background-color:var(--color-success)}.toast-error{background-color:var(--color-error)}@keyframes slideIn{0%{transform:translateY(20px);opacity:0}to{transform:translateY(0);opacity:1}}.container{max-width:800px;margin:0 auto;padding:var(--spacing-lg)}.page-header{margin-bottom:var(--spacing-xl)}.page-title{font-size:24px;font-weight:600;color:var(--color-text-primary)}