:root{--color-bg: #1a1a2e;--color-surface: #16213e;--color-surface-raised: #1f2a4a;--color-accent: #0f3460;--color-accent-hover: #15457a;--color-border: #2a3658;--color-text: #e0e0e0;--color-text-muted: #9aa3c0;--color-text-inverse: #ffffff;--color-status-available: #4ade80;--color-status-charging: #60a5fa;--color-status-paused: #fbbf24;--color-status-offline: #6b7280;--color-status-error: #f87171;--color-danger: #ef4444;--color-danger-hover: #dc2626;--space-1: 4px;--space-2: 8px;--space-3: 12px;--space-4: 16px;--space-5: 20px;--space-6: 24px;--space-8: 32px;--radius-sm: 6px;--radius-md: 10px;--radius-lg: 14px;--radius-pill: 9999px;--font-family: system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;--font-mono: ui-monospace, "SF Mono", Menlo, Consolas, monospace;--fs-xs: 12px;--fs-sm: 14px;--fs-base: 16px;--fs-lg: 18px;--fs-xl: 22px;--fs-2xl: 28px;--fw-normal: 400;--fw-medium: 500;--fw-semibold: 600;--max-width: 480px;--transition-fast: .12s ease;--transition-base: .2s ease;--shadow-card: 0 1px 3px rgba(0, 0, 0, .4), 0 1px 2px rgba(0, 0, 0, .2)}*,*:before,*:after{box-sizing:border-box;margin:0;padding:0}html,body{height:100%}body{background:var(--color-bg);color:var(--color-text);font-family:var(--font-family);font-size:var(--fs-base);line-height:1.5;-webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility}#app{max-width:var(--max-width);margin:0 auto;padding:var(--space-4);min-height:100vh}button{font-family:inherit;font-size:inherit;cursor:pointer;border:none;border-radius:var(--radius-md);transition:background var(--transition-fast),opacity var(--transition-fast)}button:disabled{opacity:.5;cursor:not-allowed}input,select,textarea{font-family:inherit;font-size:var(--fs-base)}a{color:var(--color-status-charging)}.app-header{display:flex;align-items:center;justify-content:space-between;margin-bottom:var(--space-6);padding-top:env(safe-area-inset-top)}.app-header h1{font-size:var(--fs-xl);font-weight:var(--fw-semibold);letter-spacing:-.01em}.card{background:var(--color-surface);border-radius:var(--radius-lg);padding:var(--space-5);box-shadow:var(--shadow-card)}.btn{display:inline-flex;align-items:center;justify-content:center;gap:var(--space-2);padding:var(--space-3) var(--space-4);border-radius:var(--radius-md);font-weight:var(--fw-medium);font-size:var(--fs-sm);background:var(--color-accent);color:var(--color-text-inverse);min-height:44px}.btn:hover:not(:disabled){background:var(--color-accent-hover)}.btn-secondary{background:transparent;color:var(--color-text);border:1px solid var(--color-border)}.btn-secondary:hover:not(:disabled){background:var(--color-surface-raised)}.btn-danger{background:var(--color-danger);color:var(--color-text-inverse)}.btn-danger:hover:not(:disabled){background:var(--color-danger-hover)}.btn-block{width:100%}.field{display:flex;flex-direction:column;gap:var(--space-2);margin-bottom:var(--space-4)}.field label{font-size:var(--fs-sm);color:var(--color-text-muted);font-weight:var(--fw-medium)}.field input,.field select{background:var(--color-bg);color:var(--color-text);border:1px solid var(--color-border);border-radius:var(--radius-md);padding:var(--space-3) var(--space-4);min-height:44px;transition:border-color var(--transition-fast)}.field input:focus,.field select:focus{outline:none;border-color:var(--color-accent-hover)}.status-dot{display:inline-block;width:10px;height:10px;border-radius:var(--radius-pill);flex-shrink:0}.status-dot.available{background:var(--color-status-available)}.status-dot.charging{background:var(--color-status-charging);box-shadow:0 0 8px var(--color-status-charging);animation:pulse 1.6s ease-in-out infinite}.status-dot.paused{background:var(--color-status-paused)}.status-dot.offline{background:var(--color-status-offline)}.status-dot.error{background:var(--color-status-error)}@keyframes pulse{0%,to{opacity:1}50%{opacity:.5}}.muted{color:var(--color-text-muted);font-size:var(--fs-sm)}.text-mono{font-family:var(--font-mono);font-size:var(--fs-xs)}.alert{padding:var(--space-3) var(--space-4);border-radius:var(--radius-md);font-size:var(--fs-sm);margin-bottom:var(--space-4)}.alert-error{background:#ef44441f;border:1px solid rgba(239,68,68,.3);color:#fca5a5}.alert-info{background:#60a5fa1a;border:1px solid rgba(96,165,250,.25);color:#93c5fd}.header-actions{display:flex;gap:var(--space-2)}.header-btn{padding:var(--space-2) var(--space-3);min-height:36px;font-size:var(--fs-xs)}.login-screen{display:flex;flex-direction:column;gap:var(--space-4);padding-top:var(--space-8)}.login-hero{text-align:center;margin-bottom:var(--space-4)}.login-hero h2{font-size:var(--fs-2xl);font-weight:var(--fw-semibold);letter-spacing:-.02em;margin-bottom:var(--space-1)}.login-divider{display:flex;align-items:center;gap:var(--space-3);color:var(--color-text-muted);font-size:var(--fs-sm);margin:var(--space-2) 0}.login-divider:before,.login-divider:after{content:"";flex:1;height:1px;background:var(--color-border)}.login-nip07-note{text-align:center;margin-top:var(--space-2)}.generated-card{display:flex;flex-direction:column;gap:var(--space-3)}.generated-card h3{font-size:var(--fs-lg);font-weight:var(--fw-semibold)}.generated-identity{display:flex;flex-direction:column;gap:var(--space-2)}.generated-npub,.generated-nsec{display:block;background:var(--color-bg);padding:var(--space-2) var(--space-3);border-radius:var(--radius-sm);word-break:break-all;border:1px solid var(--color-border)}.generated-nsec-row{display:flex;gap:var(--space-2);align-items:stretch}.generated-nsec-row .generated-nsec{flex:1;overflow-x:auto}.dashboard{display:flex;flex-direction:column;gap:var(--space-4)}.empty-state{text-align:center;display:flex;flex-direction:column;gap:var(--space-4);align-items:center}.device-list{display:flex;flex-direction:column;gap:var(--space-3)}.device-list-item{display:flex;flex-direction:column;gap:var(--space-1)}.device-card{display:flex;flex-direction:column;gap:var(--space-2)}.device-card-header{display:flex;align-items:center;gap:var(--space-2)}.device-name{font-size:var(--fs-base);font-weight:var(--fw-semibold);flex:1;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.device-service{font-size:var(--fs-xs);text-transform:uppercase;letter-spacing:.04em}.device-status-label{font-size:var(--fs-sm);color:var(--color-text-muted)}.device-meta{display:flex;flex-wrap:wrap;gap:var(--space-2) var(--space-3);font-size:var(--fs-sm)}.device-meta-item{color:var(--color-text)}.device-error{color:var(--color-status-error)}.device-actions{display:flex;gap:var(--space-2);margin-top:var(--space-2)}.device-actions .btn{flex:1}.device-unlink{align-self:flex-end;padding:var(--space-1) var(--space-3);min-height:32px;font-size:var(--fs-xs)}.link-form{display:flex;flex-direction:column}.link-form-title{font-size:var(--fs-lg);font-weight:var(--fw-semibold);margin-bottom:var(--space-2)}.cancel-link-btn,.add-device-btn{margin-top:var(--space-2)}.toast{position:fixed;top:16px;left:50%;transform:translate(-50%);z-index:100;background:var(--color-accent);color:#fff;padding:var(--space-sm) var(--space-md);border-radius:var(--radius-md);box-shadow:0 4px 12px #0000004d;max-width:90%;text-align:center;animation:toast-in .2s ease-out}@keyframes toast-in{0%{opacity:0;transform:translate(-50%) translateY(-10px)}to{opacity:1;transform:translate(-50%) translateY(0)}}.alert-info{background:var(--color-accent);color:#fff}.field-label-row{display:flex;justify-content:space-between;align-items:center}.toggle-visibility{background:none;border:none;cursor:pointer;font-size:1.1rem;padding:2px 6px;opacity:.6}.toggle-visibility:hover{opacity:1}.empty-actions,.add-device-row{display:flex;gap:12px;justify-content:center;margin-top:16px}.vc-hint{font-size:.875rem;line-height:1.4;margin:8px 0}.vc-success{text-align:center}.vc-success .hook-url-box{background:var(--color-bg);border:1px solid var(--color-surface);border-radius:8px;padding:12px;margin:12px 0;word-break:break-all}.vc-actions{display:flex;flex-direction:column;gap:8px}