:root{--color-primary: #3b82f6;--color-primary-dark: #2563eb;--color-success: #10b981;--color-warning: #f59e0b;--color-danger: #ef4444;--color-bg: #0f172a;--color-bg-secondary: #1e293b;--color-bg-tertiary: #334155;--color-text: #f1f5f9;--color-text-secondary: #cbd5e1;--color-text-muted: #94a3b8;--color-border: #334155;--spacing-xs: .5rem;--spacing-sm: .75rem;--spacing-md: 1rem;--spacing-lg: 1.5rem;--spacing-xl: 2rem;--spacing-2xl: 3rem;--radius-sm: .375rem;--radius-md: .5rem;--radius-lg: .75rem;--radius-xl: 1rem;--shadow-sm: 0 1px 2px 0 rgb(0 0 0 / .05);--shadow-md: 0 4px 6px -1px rgb(0 0 0 / .1);--shadow-lg: 0 10px 15px -3px rgb(0 0 0 / .1);--shadow-xl: 0 20px 25px -5px rgb(0 0 0 / .1);--transition: all .2s ease;--font-sans: system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;--font-mono: "SF Mono", Monaco, "Cascadia Code", monospace}*{margin:0;padding:0;box-sizing:border-box}body{font-family:var(--font-sans);background:var(--color-bg);color:var(--color-text);line-height:1.6;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}.container{max-width:1200px;margin:0 auto;padding:0 var(--spacing-lg)}.header{background:var(--color-bg-secondary);border-bottom:1px solid var(--color-border);padding:var(--spacing-xl) 0}.header .logo{font-size:2rem;font-weight:700;display:flex;align-items:center;gap:var(--spacing-sm);margin-bottom:var(--spacing-xs)}.header .logo-icon{font-size:2.5rem}.header .tagline{color:var(--color-text-secondary);font-size:1rem}.main{padding:var(--spacing-2xl) 0;min-height:calc(100vh - 200px)}.card{background:var(--color-bg-secondary);border:1px solid var(--color-border);border-radius:var(--radius-lg);padding:var(--spacing-xl);margin-bottom:var(--spacing-xl)}.card--primary{border-color:var(--color-primary);box-shadow:0 0 0 1px var(--color-primary)}.card__title{font-size:1.5rem;font-weight:600;margin-bottom:var(--spacing-lg);color:var(--color-text)}.form-group{margin-bottom:var(--spacing-lg)}.form-label{display:block;font-weight:500;margin-bottom:var(--spacing-xs);color:var(--color-text)}.form-label__hint{display:block;font-size:.875rem;font-weight:400;color:var(--color-text-muted);margin-top:.25rem}.form-input,.form-select{width:100%;padding:var(--spacing-sm) var(--spacing-md);background:var(--color-bg);border:1px solid var(--color-border);border-radius:var(--radius-md);color:var(--color-text);font-size:1rem;font-family:var(--font-sans);transition:var(--transition)}.form-input:focus,.form-select:focus{outline:none;border-color:var(--color-primary);box-shadow:0 0 0 3px #3b82f61a}.form-input--textarea{resize:vertical;font-family:var(--font-sans)}.form-input::placeholder,.form-select::placeholder{color:var(--color-text-muted)}.form-select{cursor:pointer}.form-row{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:var(--spacing-md)}.form-actions{display:flex;align-items:center;gap:var(--spacing-md);margin-top:var(--spacing-xl)}.checkbox{display:flex;flex-direction:column;gap:var(--spacing-xs);cursor:pointer}.checkbox input[type=checkbox]{margin-right:var(--spacing-sm)}.checkbox__label{display:flex;align-items:center;gap:var(--spacing-xs);font-weight:500}.checkbox__hint{font-size:.875rem;color:var(--color-text-muted);margin-left:1.5rem}.btn{display:inline-flex;align-items:center;justify-content:center;gap:var(--spacing-xs);padding:var(--spacing-sm) var(--spacing-lg);border:none;border-radius:var(--radius-md);font-size:1rem;font-weight:500;cursor:pointer;transition:var(--transition);font-family:var(--font-sans)}.btn--primary{background:var(--color-primary);color:#fff}.btn--primary:hover{background:var(--color-primary-dark);transform:translateY(-1px);box-shadow:var(--shadow-lg)}.btn--primary:active{transform:translateY(0)}.btn--large{padding:var(--spacing-md) var(--spacing-xl);font-size:1.125rem}.btn__icon{font-size:1.25em}.btn:disabled{opacity:.5;cursor:not-allowed;transform:none!important}.badge{display:inline-block;padding:.25rem .5rem;border-radius:var(--radius-sm);font-size:.75rem;font-weight:600;text-transform:uppercase}.badge--success{background:var(--color-success);color:#fff}.details{border:1px solid var(--color-border);border-radius:var(--radius-md);padding:var(--spacing-md);margin-top:var(--spacing-lg)}.details__summary{cursor:pointer;font-weight:500;list-style:none;-webkit-user-select:none;user-select:none}.details__summary::-webkit-details-marker{display:none}.details__content{margin-top:var(--spacing-lg)}.htmx-indicator{display:none;align-items:center;gap:var(--spacing-sm);color:var(--color-text-secondary)}.htmx-indicator.htmx-request{display:flex}.spinner{width:20px;height:20px;border:2px solid var(--color-border);border-top-color:var(--color-primary);border-radius:50%;animation:spin .6s linear infinite}@keyframes spin{to{transform:rotate(360deg)}}.cost-estimate{display:flex;align-items:center;gap:var(--spacing-xs);padding:var(--spacing-md);background:var(--color-bg);border-radius:var(--radius-md);font-size:.875rem;margin-top:var(--spacing-md)}.cost-estimate__label{color:var(--color-text-secondary)}.cost-estimate__value{color:var(--color-primary);font-weight:600;font-size:1rem}.cost-estimate__breakdown{color:var(--color-text-muted);font-size:.75rem}.enhanced-prompt-box{padding:var(--spacing-md);background:var(--color-bg);border:1px solid var(--color-success);border-radius:var(--radius-md);font-family:var(--font-mono);font-size:.875rem;line-height:1.6;color:var(--color-text-secondary);max-height:200px;overflow-y:auto}.result-section{margin-top:var(--spacing-2xl)}.footer{background:var(--color-bg-secondary);border-top:1px solid var(--color-border);padding:var(--spacing-xl) 0;margin-top:var(--spacing-2xl);text-align:center}.footer__text{color:var(--color-text-secondary);margin-bottom:var(--spacing-sm)}.footer__links{color:var(--color-text-muted);font-size:.875rem}.footer__links a{color:var(--color-primary);text-decoration:none;transition:var(--transition)}.footer__links a:hover{color:var(--color-primary-dark)}@media (max-width: 768px){.header{padding:var(--spacing-lg) 0}.header .logo{font-size:1.5rem}.main{padding:var(--spacing-lg) 0}.card{padding:var(--spacing-lg)}.form-row{grid-template-columns:1fr}}