*,*:before,*:after{box-sizing:border-box;margin:0;padding:0}:root{--bg-deep: #0f1923;--bg-card: #1a2535;--bg-surface: #223045;--accent: #1a6b8a;--accent-lt: #7ecfe0;--text: #e8edf2;--text-muted: #8a9bb0;--high: #4fc3f7;--low: #81c784;--danger: #ef5350;--border: #2d3f55;--radius: 12px;--header-h: 56px;--nav-h: 64px}html{height:100%}body{min-height:100%;background:var(--bg-deep);color:var(--text);font-family:-apple-system,BlinkMacSystemFont,Segoe UI,sans-serif;font-size:16px;line-height:1.5;overflow-x:hidden}#app{display:flex;flex-direction:column;min-height:100dvh}.app-header{position:sticky;top:0;z-index:100;display:flex;align-items:center;height:var(--header-h);padding:0 16px;background:var(--bg-card);border-bottom:1px solid var(--border);gap:12px}.app-title{flex:1;font-size:1.2rem;font-weight:700;color:var(--accent-lt);letter-spacing:.03em}.nav-back,.btn-icon{background:none;border:none;color:var(--text);font-size:1.3rem;cursor:pointer;padding:8px;border-radius:8px;display:flex;align-items:center;transition:background .15s}.nav-back:hover,.btn-icon:hover{background:var(--bg-surface)}#main-content{flex:1;overflow-y:auto;padding:16px;padding-bottom:calc(var(--nav-h) + 16px)}.bottom-nav{position:fixed;bottom:0;left:0;right:0;height:var(--nav-h);display:flex;background:var(--bg-card);border-top:1px solid var(--border);z-index:100}.nav-item{flex:1;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:2px;background:none;border:none;color:var(--text-muted);font-size:.7rem;cursor:pointer;transition:color .15s}.nav-item.active{color:var(--accent-lt)}.nav-item:hover{color:var(--text)}.nav-icon{font-size:1.3rem}.card{background:var(--bg-card);border:1px solid var(--border);border-radius:var(--radius);padding:16px;margin-bottom:12px}.card-clickable{cursor:pointer;transition:background .15s,border-color .15s}.card-clickable:hover{background:var(--bg-surface);border-color:var(--accent)}.station-item{display:flex;align-items:center;padding:14px 16px;background:var(--bg-card);border:1px solid var(--border);border-radius:var(--radius);margin-bottom:8px;cursor:pointer;transition:background .15s;gap:12px}.station-item:hover{background:var(--bg-surface)}.station-name{flex:1;font-weight:500}.station-meta{font-size:.8rem;color:var(--text-muted)}.fav-btn{background:none;border:none;font-size:1.2rem;cursor:pointer;color:var(--text-muted);padding:4px;transition:color .15s}.fav-btn.active{color:gold}.tide-station-name{font-size:1.1rem;font-weight:700;margin-bottom:4px}.tide-station-meta{font-size:.8rem;color:var(--text-muted);margin-bottom:16px}.chart-container{position:relative;width:100%;height:220px;margin-bottom:16px}.hilo-section h3,.week-section h3{font-size:.85rem;text-transform:uppercase;letter-spacing:.08em;color:var(--text-muted);margin-bottom:10px}.hilo-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:8px;margin-bottom:16px}.hilo-item{background:var(--bg-surface);border-radius:8px;padding:10px 12px}.hilo-type{font-size:.75rem;font-weight:600;text-transform:uppercase;letter-spacing:.05em;margin-bottom:2px}.hilo-type.H{color:var(--high)}.hilo-type.L{color:var(--low)}.hilo-time{font-size:.95rem;font-weight:500}.hilo-height{font-size:.85rem;color:var(--text-muted)}.week-table{width:100%;border-collapse:collapse;font-size:.85rem}.week-table th{text-align:left;padding:6px 8px;color:var(--text-muted);border-bottom:1px solid var(--border);font-weight:500}.week-table td{padding:6px 8px;border-bottom:1px solid var(--border)}.week-table tr:last-child td{border-bottom:none}.week-table .day-separator td{background:var(--bg-surface);font-weight:600;color:var(--accent-lt);font-size:.8rem;padding:4px 8px}.badge-H{display:inline-block;background:#4fc3f726;color:var(--high);border-radius:4px;padding:1px 6px;font-size:.75rem;font-weight:600}.badge-L{display:inline-block;background:#81c78426;color:var(--low);border-radius:4px;padding:1px 6px;font-size:.75rem;font-weight:600}.drill-list{list-style:none}.drill-item{display:flex;align-items:center;padding:14px 16px;border-bottom:1px solid var(--border);cursor:pointer;transition:background .15s}.drill-item:hover{background:var(--bg-surface)}.drill-item-label{flex:1}.drill-arrow{color:var(--text-muted);font-size:.9rem}.search-bar{display:flex;gap:8px;margin-bottom:16px}.search-input{flex:1;background:var(--bg-card);border:1px solid var(--border);border-radius:8px;padding:10px 14px;color:var(--text);font-size:1rem;outline:none;transition:border-color .15s}.search-input:focus{border-color:var(--accent)}.search-input::placeholder{color:var(--text-muted)}.settings-panel{position:fixed;top:0;right:0;bottom:0;left:0;z-index:200;background:#0009;display:flex;align-items:flex-end}.settings-content{width:100%;background:var(--bg-card);border-radius:var(--radius) var(--radius) 0 0;padding:20px 20px 32px;border-top:1px solid var(--border)}.settings-header{display:flex;align-items:center;margin-bottom:20px}.settings-header h2{flex:1;font-size:1.1rem}.settings-header button{background:none;border:none;color:var(--text);font-size:1.5rem;cursor:pointer;line-height:1}.setting-row{display:flex;align-items:center;margin-bottom:16px;gap:16px}.setting-row label{flex:1;color:var(--text-muted);font-size:.9rem}.setting-row select{background:var(--bg-surface);border:1px solid var(--border);border-radius:8px;color:var(--text);padding:6px 10px;font-size:.9rem}.toggle-group{display:flex;gap:4px}.toggle-btn{background:var(--bg-surface);border:1px solid var(--border);border-radius:6px;color:var(--text-muted);padding:6px 14px;font-size:.85rem;cursor:pointer;transition:all .15s}.toggle-btn.active{background:var(--accent);border-color:var(--accent);color:#fff}.offline-banner{position:fixed;top:0;left:0;right:0;z-index:300;background:#b45309;color:#fff;text-align:center;font-size:.85rem;font-weight:500;padding:8px 16px}.offline-banner:not(.hidden)~#app .app-header{top:36px}.badge-obs{display:inline-block;background:#8a9bb033;color:var(--text-muted);border-radius:4px;padding:1px 6px;font-size:.7rem;font-weight:500;vertical-align:middle;margin-left:4px}.obs-only-notice{display:flex;gap:14px;align-items:flex-start;padding:4px 0}.obs-only-icon{font-size:1.8rem;line-height:1}.obs-only-notice strong{display:block;margin-bottom:4px}.obs-only-notice p{font-size:.85rem;color:var(--text-muted);margin:0}.tz-notice{font-size:.8rem;color:#f59e0b;margin-top:8px;padding:6px 10px;background:#f59e0b1a;border-radius:6px;border:1px solid rgba(245,158,11,.25)}.sparkline-col{width:160px;min-width:120px;padding:4px 0 4px 8px!important;vertical-align:middle}.sparkline-svg{display:block;width:100%}.hidden{display:none!important}.empty-state{text-align:center;color:var(--text-muted);padding:48px 16px}.empty-state .empty-icon{font-size:3rem;margin-bottom:12px}.empty-state p{font-size:.9rem}.loading{text-align:center;padding:40px;color:var(--text-muted)}.error-msg{background:#ef53501a;border:1px solid var(--danger);border-radius:8px;padding:12px 16px;color:var(--danger);font-size:.9rem;margin-bottom:12px}.nearby-header{display:flex;align-items:center;gap:12px;margin-bottom:16px}.btn-locate{display:flex;align-items:center;gap:8px;background:var(--accent);border:none;border-radius:8px;color:#fff;padding:10px 16px;font-size:.9rem;cursor:pointer;transition:opacity .15s}.btn-locate:hover{opacity:.9}.btn-locate:disabled{opacity:.5;cursor:not-allowed}