:root{--color-bg: #ffffff;--color-surface: #f8fafc;--color-border: #e2e8f0;--color-text: #0f172a;--color-text-muted: #64748b;--color-primary: #0f766e;--color-primary-contrast: #ffffff;--color-danger: #dc2626;--color-warning: #d97706;--color-success: #16a34a;--tap-target: 44px;--nav-height: 64px;--radius: 12px;--font: system-ui, -apple-system, "Segoe UI", Roboto, sans-serif}*{box-sizing:border-box;margin:0;padding:0}html,body,#root{height:100%}body{font-family:var(--font);font-size:16px;color:var(--color-text);background:var(--color-bg);-webkit-font-smoothing:antialiased}.app-shell{display:flex;flex-direction:column;height:100%}.app-main{flex:1;overflow-y:auto;padding:16px;padding-bottom:calc(var(--nav-height) + env(safe-area-inset-bottom) + 16px)}.bottom-nav{position:fixed;inset-inline:0;bottom:0;height:calc(var(--nav-height) + env(safe-area-inset-bottom));padding-bottom:env(safe-area-inset-bottom);display:grid;grid-auto-flow:column;grid-auto-columns:1fr;background:var(--color-bg);border-top:1px solid var(--color-border);z-index:40}.bottom-nav a{display:flex;flex-direction:column;align-items:center;justify-content:center;gap:2px;min-height:var(--tap-target);text-decoration:none;color:var(--color-text-muted);font-size:12px}.bottom-nav a.active{color:var(--color-primary);font-weight:600}.bottom-nav .nav-icon{font-size:22px;line-height:1}.btn{display:inline-flex;align-items:center;justify-content:center;min-height:var(--tap-target);padding:0 20px;border:none;border-radius:var(--radius);background:var(--color-primary);color:var(--color-primary-contrast);font-size:16px;font-weight:600;cursor:pointer;width:100%}.btn:disabled{opacity:.5}.btn-secondary{background:var(--color-surface);color:var(--color-text);border:1px solid var(--color-border)}.field{display:flex;flex-direction:column;gap:6px;margin-bottom:16px}.field label{font-size:14px;font-weight:600}.field input{min-height:var(--tap-target);padding:0 12px;border:1px solid var(--color-border);border-radius:var(--radius);font-size:16px}.page-title{font-size:22px;font-weight:700;margin-bottom:16px}.card{background:var(--color-surface);border:1px solid var(--color-border);border-radius:var(--radius);padding:16px;margin-bottom:12px}.error-text{color:var(--color-danger);font-size:14px;margin-bottom:12px}.conn-pill{position:fixed;top:8px;right:8px;padding:4px 10px;border-radius:999px;font-size:12px;font-weight:600;z-index:50}.conn-pill.offline{background:#fef3c7;color:#92400e}.conn-pill.pending{background:#dbeafe;color:#1e40af}@media(min-width:768px){.app-main{max-width:1024px;margin-inline:auto;width:100%}}