:root{--color-primary: #4F46E5;--color-primary-hover: #4338CA;--color-brand-dark: #0F172A;--color-brand-muted: #475569;--bg-page: #FAFAFA;--bg-card: #FFFFFF;--bg-card-hover: #F8FAFC;--bg-card-subtle: #F1F5F9;--bg-input: #F8FAFC;--bg-elevated: #FFFFFF;--border-subtle: #E2E8F0;--border-medium: #CBD5E1;--border-active: #4F46E5;--text-primary: #0F172A;--text-secondary: #475569;--text-muted: #64748B;--text-inverse: #FFFFFF;--brand-primary: #4F46E5;--brand-primary-hover: #4338CA;--brand-primary-light: rgba(79, 70, 229, .08);--brand-glow: rgba(79, 70, 229, .25);--accent-emerald: #10B981;--accent-emerald-subtle: rgba(16, 185, 129, .1);--accent-amber: #D97706;--accent-amber-subtle: rgba(217, 119, 6, .1);--accent-rose: #EF4444;--accent-rose-subtle: rgba(239, 68, 68, .1);--accent-blue: #2563EB;--accent-blue-subtle: rgba(37, 99, 235, .1);--font-sans: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;--font-mono: "JetBrains Mono", "SF Mono", monospace;--radius-sm: 6px;--radius-md: 10px;--radius-lg: 14px;--radius-xl: 18px;--radius-full: 9999px;--shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, .04);--shadow-md: 0 4px 12px 0 rgba(0, 0, 0, .06);--shadow-lg: 0 12px 32px -4px rgba(15, 23, 42, .08);--transition-fast: .15s cubic-bezier(.4, 0, .2, 1);--transition-normal: .25s cubic-bezier(.4, 0, .2, 1)}*,*:before,*:after{box-sizing:border-box;margin:0;padding:0;-webkit-tap-highlight-color:transparent}html{scroll-behavior:smooth;overflow-x:hidden}body{font-family:var(--font-sans);background-color:var(--bg-page);color:var(--text-primary);line-height:1.5;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;min-height:100vh;min-height:100dvh;display:flex;flex-direction:column;overflow-x:hidden;max-width:100vw}#root{display:flex;flex-direction:column;min-height:100vh;min-height:100dvh;width:100%;overflow-x:hidden;max-width:100vw}a{color:var(--brand-primary);text-decoration:none;transition:color 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#4f46e54d}.btn-primary:hover:not(:disabled){background-color:var(--color-primary-hover);border-color:var(--color-primary-hover);box-shadow:0 4px 14px #4f46e559;transform:translateY(-1px)}.btn-primary:active:not(:disabled){transform:scale(.98)}.btn-secondary{background-color:#fff;color:var(--color-brand-dark);border-color:var(--border-medium);box-shadow:0 1px 2px #0000000a}.btn-secondary:hover:not(:disabled){background-color:var(--bg-card-hover);border-color:var(--color-primary);color:var(--color-primary)}.btn-outline{background-color:transparent;color:var(--color-brand-dark);border-color:var(--border-medium)}.btn-outline:hover:not(:disabled){background-color:var(--bg-card-subtle);border-color:var(--color-primary);color:var(--color-primary)}.btn-danger{background-color:var(--accent-rose-subtle);color:var(--accent-rose);border-color:#ef444440}.btn-danger:hover:not(:disabled){background-color:var(--accent-rose);color:#fff}.btn-sm{padding:.35rem 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rgba(217,119,6,.3)}.badge-rose{background-color:var(--accent-rose-subtle);color:#b91c1c;border:1px solid rgba(239,68,68,.3)}.badge-indigo,.badge-blue{background-color:var(--brand-primary-light);color:var(--color-primary);border:1px solid rgba(79,70,229,.25)}.badge-neutral,.badge-slate{background-color:var(--bg-card-subtle);color:var(--text-secondary);border:1px solid var(--border-subtle)}.pulse-dot{width:7px;height:7px;border-radius:50%;background-color:currentColor;animation:pulse-animation 2s infinite ease-in-out}@keyframes pulse-animation{0%,to{opacity:1;transform:scale(1)}50%{opacity:.4;transform:scale(.85)}}.form-group{margin-bottom:1.25rem;display:flex;flex-direction:column;gap:.4rem}.form-label{font-size:.875rem;font-weight:600;color:var(--color-brand-dark);display:flex;justify-content:space-between;align-items:center}.form-input,.form-select,.form-textarea{width:100%;padding:.75rem 1rem;background-color:#fff;border:1px solid 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.9rem;width:100%;box-sizing:border-box}.relay-status-text{display:none}.relay-status-pill{padding:.3rem}.nav-btn-text{display:none}.simulator-grid{grid-template-columns:1fr}.chat-container{height:calc(100vh - 125px);height:calc(100dvh - 125px);border-radius:var(--radius-lg)}.chat-bubble{max-width:88%}.chat-header{padding:.75rem .85rem;flex-wrap:wrap;gap:.5rem}.chat-messages{padding:.85rem;gap:.65rem}.chat-input-bar{padding:.65rem .85rem}.modal-card{padding:1.25rem 1rem;border-radius:var(--radius-lg);max-width:calc(100vw - 1.5rem);margin:.75rem}.toast-container{bottom:70px;right:1rem;left:1rem}table{display:block;overflow-x:auto;-webkit-overflow-scrolling:touch;max-width:100%}.card{overflow-wrap:break-word;word-break:break-word}.navbar-actions{gap:.35rem!important}.pairing-code-box{padding:1.25rem .85rem;margin:1rem 0}}@media(max-width:640px){h1{font-size:1.75rem}h2{font-size:1.3rem}h3{font-size:1.1rem}.card{padding:1rem .875rem;border-radius:var(--radius-lg)}.pairing-code-display{font-size:1.75rem;letter-spacing:.04em}.btn-lg{font-size:.975rem;padding:.8rem 1.25rem;width:100%;max-width:100%}[style*=grid-template-columns]{grid-template-columns:1fr!important}.navbar-inner{gap:.4rem}}@media(max-width:420px){.brand-logo span{font-size:1rem}.pairing-code-display{font-size:1.5rem}h1{font-size:1.55rem}h2{font-size:1.2rem}.card{padding:.875rem .75rem}.app-container{padding:0 .75rem}}