:root{--color-bg-primary: #121212;--color-bg-secondary: #1e1e1e;--color-bg-card: #252525;--color-text-primary: #e0e0e0;--color-text-secondary: #a0a0a0;--color-accent: #ffc107;--color-accent-hover: #ffca28;--color-border: #333333;--color-success: #66bb6a;--font-family: "Inter", system-ui, sans-serif;--spacing-xs: 4px;--spacing-sm: 8px;--spacing-md: 16px;--spacing-lg: 24px;--spacing-xl: 32px;--border-radius: 12px;--transition: all .2s ease}body{margin:0;font-family:var(--font-family);background-color:var(--color-bg-primary);color:var(--color-text-primary);-webkit-font-smoothing:antialiased}h1,h2,h3{font-weight:600;color:var(--color-text-primary);margin-top:0}input,select,textarea{background-color:var(--color-bg-secondary);border:1px solid var(--color-border);color:var(--color-text-primary);padding:var(--spacing-sm) var(--spacing-md);border-radius:var(--border-radius);font-family:inherit;font-size:1rem;width:100%;box-sizing:border-box;transition:var(--transition)}input:focus,select:focus,textarea:focus{outline:none;border-color:var(--color-accent)}input[type=range]{padding:0;border:none;background-color:transparent;height:24px;margin-top:var(--spacing-xs);margin-bottom:var(--spacing-xs);cursor:pointer}input[type=range]:focus{border-color:transparent}button{cursor:pointer;font-family:inherit;transition:var(--transition);border-radius:var(--border-radius);border:none;font-weight:500}.btn-primary{background-color:var(--color-accent);color:#121212;padding:var(--spacing-md) var(--spacing-lg);font-size:1rem}.btn-primary:hover{background-color:var(--color-accent-hover);transform:translateY(-1px)}.card{background-color:var(--color-bg-card);padding:var(--spacing-lg);border-radius:var(--border-radius);border:1px solid var(--color-border);margin-bottom:var(--spacing-md)}.container{max-width:600px;margin:0 auto;padding:var(--spacing-md)}.navbar{display:flex;justify-content:space-between;align-items:center;padding:var(--spacing-md) 0;margin-bottom:var(--spacing-xl);border-bottom:1px solid var(--color-border)}.logo{font-size:1.5rem;font-weight:700;color:var(--color-accent);text-decoration:none}.label{display:block;margin-bottom:var(--spacing-sm);color:var(--color-text-secondary);font-size:.9rem}