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var(--border)}.loading{text-align:center;color:var(--text-muted);padding:2rem}.empty-hint{color:var(--text-muted);font-size:var(--text-sm);font-style:italic;padding:.5rem 0}.error-message{color:var(--danger);background:var(--danger-soft);border:1px solid var(--danger-border);border-radius:var(--radius-sm);padding:.6rem .9rem;font-size:var(--text-sm)}.error-message--spaced{margin-top:.5rem}.bottom-nav{position:fixed;left:0;right:0;bottom:0;z-index:90;display:flex;background:var(--surface);border-top:1px solid var(--border);padding:.4rem 0 calc(.5rem + env(safe-area-inset-bottom))}.bottom-nav button{flex:1;display:flex;flex-direction:column;align-items:center;gap:3px;background:none;border:none;cursor:pointer;color:var(--text-subtle);font-size:var(--text-xs);font-weight:600;padding:.25rem 0;min-height:48px}.bottom-nav button[aria-current=true]{color:var(--primary)}.fab{position:fixed;right:1rem;z-index:91;bottom:calc(var(--bottom-nav-h) + env(safe-area-inset-bottom) + .75rem);width:52px;height:52px;border-radius:50%;border:none;cursor:pointer;background:var(--primary-btn);color:#fff;box-shadow:var(--shadow-pop);display:flex;align-items:center;justify-content:center}.fab:active{transform:translateY(1px)}.trip-layout,.trip-aside{display:flex;flex-direction:column;gap:1rem}.trip-main{display:flex;flex-direction:column;gap:1rem;min-width:0}.has-bottom-nav{padding-bottom:calc(var(--bottom-nav-h) + env(safe-area-inset-bottom))}.auth-container{max-width:400px;margin:0 auto;display:flex;flex-direction:column;gap:0}.auth-header{text-align:center;padding:1.5rem 0 1.25rem}.auth-icon{display:inline-flex;color:var(--primary);margin-bottom:.35rem}.auth-title{font-size:1.75rem;font-weight:800;background:linear-gradient(135deg,var(--primary),#818cf8);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}.auth-subtitle{color:var(--text-muted);font-size:var(--text-base);margin-top:.25rem}.auth-card{padding:1.5rem!important}.auth-tabs{display:flex;border-radius:var(--radius-sm);overflow:hidden;background:var(--surface-2);border:1px solid var(--border);margin-bottom:1.25rem}.auth-tab{flex:1;padding:.65rem 0;border:none;background:none;font-size:var(--text-sm);font-weight:600;cursor:pointer;color:var(--text-muted);transition:all .15s;min-height:var(--tap-min)}.auth-tab.active{background:var(--primary-btn);color:#fff}.auth-tab:hover:not(.active){color:var(--text);background:var(--surface)}.btn-google{width:100%;min-height:var(--tap-min);padding:.6rem 1rem;border-radius:var(--radius-sm);font-size:var(--text-sm);font-weight:600;cursor:pointer;border:1px solid var(--border);background:var(--surface);color:var(--text);display:flex;align-items:center;justify-content:center;gap:.6rem;box-shadow:var(--shadow);transition:all .15s}.btn-google:hover{background:var(--surface-2);box-shadow:var(--shadow-md)}.auth-divider{display:flex;align-items:center;gap:.75rem;margin:1rem 0;color:var(--text-muted);font-size:var(--text-sm)}.auth-divider:before,.auth-divider:after{content:"";flex:1;height:1px;background:var(--border)}.auth-confirm-header{text-align:center;margin-bottom:.75rem}.auth-confirm-icon{display:inline-flex;color:var(--primary);margin-bottom:.35rem}.auth-confirm-header h2{font-size:var(--text-md);margin-bottom:.25rem}.auth-confirm-header p{color:var(--text-muted);font-size:var(--text-sm);word-break:break-all}@media (min-width: 768px){.main-content{padding:1.5rem 1rem}.has-bottom-nav{padding-bottom:0}.trip-layout{flex-direction:row;align-items:flex-start}.trip-main{flex:1 1 auto}.trip-aside{flex:0 0 240px;position:sticky;top:calc(var(--nav-h) + 1.5rem)}}.identity-card{border-left:3px solid var(--accent, #e0a030)}.identity-question{font-weight:600;margin-bottom:.5rem}.identity-chips{display:flex;flex-wrap:wrap;gap:.4rem}.identity-chip{border:1.5px solid var(--border, rgba(128,128,128,.4));background:transparent;color:inherit;border-radius:999px;padding:.35rem .9rem;font-size:.9rem;cursor:pointer;min-height:36px}.identity-chip:hover{border-color:var(--accent, #e0a030)}.identity-hint{font-size:.75rem;opacity:.6;margin:.5rem 0 0}.you-badge{display:inline-block;background:var(--accent, #e0a030);color:#fff;border-radius:999px;font-size:.65rem;padding:.05rem .45rem;margin-left:.35rem;vertical-align:middle}.assign-chips{display:flex;gap:.35rem;margin-top:.4rem;overflow-x:auto;padding-bottom:2px}.assign-chip{flex-shrink:0;border:1.5px solid var(--border, rgba(128,128,128,.4));background:transparent;color:inherit;border-radius:999px;padding:.2rem .7rem;font-size:.85rem;cursor:pointer;min-height:32px;white-space:nowrap}.assign-chip--on{border-color:var(--positive, #3a8f5f);background:#3a8f5f24}.assign-chip--me{border-color:var(--accent, #e0a030);font-weight:600}.assign-chip--me.assign-chip--on{background:#e0a03029}.assign-chip-count{display:inline-block;margin-left:.35rem;background:var(--positive, #3a8f5f);color:#fff;border-radius:999px;font-size:.7rem;padding:0 .4rem}.assign-chip:disabled{opacity:.5;cursor:default}