/* ===== Light Mode (Default) ===== */
:root {
    --bg-primary:#f4f6f9;--bg-secondary:#ffffff;--bg-card:#f8f9fb;--bg-card-hover:#f0f2f5;
    --bg-surface:rgba(0,0,0,0.03);--border:#e5e7eb;--border-hover:#d1d5db;
    --text-primary:#111827;--text-secondary:#4b5563;--text-muted:#9ca3af;
    --accent:#2563eb;--accent-light:#3b82f6;--accent2:#06b6d4;--accent3:#10b981;--accent4:#f59e0b;--danger:#ef4444;
    --gradient:linear-gradient(135deg,#2563eb,#06b6d4);
    --shadow-sm:0 1px 3px rgba(0,0,0,0.08);--shadow-md:0 4px 12px rgba(0,0,0,0.1);--shadow-lg:0 8px 24px rgba(0,0,0,0.12);
    --radius-sm:8px;--radius-md:12px;--radius-lg:16px;--radius-xl:20px;
    --sidebar-width:380px;--transition:0.25s cubic-bezier(0.4,0,0.2,1);
    --font:'Inter',-apple-system,BlinkMacSystemFont,sans-serif;--font-mono:'JetBrains Mono',monospace;
    --popup-bg:#ffffff;--popup-text:#111827;--popup-muted:#9ca3af;--popup-border:#e5e7eb;
    --toggle-bg:#e5e7eb;--toggle-checked:var(--accent);
    --map-bg:#e8ecf0;
}
/* ===== Dark Mode ===== */
.dark-mode {
    --bg-primary:#0a0e1a;--bg-secondary:#111827;--bg-card:#1a1f35;--bg-card-hover:#222842;
    --bg-surface:rgba(255,255,255,0.04);--border:rgba(255,255,255,0.08);--border-hover:rgba(255,255,255,0.15);
    --text-primary:#f1f5f9;--text-secondary:#94a3b8;--text-muted:#64748b;
    --accent:#6366f1;--accent-light:#818cf8;
    --shadow-sm:0 2px 8px rgba(0,0,0,0.3);--shadow-md:0 4px 16px rgba(0,0,0,0.4);--shadow-lg:0 8px 32px rgba(0,0,0,0.5);
    --popup-bg:#1e293b;--popup-text:#f1f5f9;--popup-muted:#64748b;--popup-border:rgba(255,255,255,0.1);
    --toggle-bg:#374151;--map-bg:#0a0e1a;
}

/* ===== Reset ===== */
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{font-size:16px;-webkit-text-size-adjust:100%}
body{font-family:var(--font);background:var(--bg-primary);color:var(--text-primary);overflow:hidden;height:100vh;height:100dvh;width:100vw;transition:background var(--transition),color var(--transition)}
::-webkit-scrollbar{width:5px}::-webkit-scrollbar-track{background:transparent}::-webkit-scrollbar-thumb{background:var(--border-hover);border-radius:10px}

/* ===== Loading Screen ===== */
.loading-screen{position:fixed;inset:0;z-index:9999;background:var(--bg-primary);display:flex;align-items:center;justify-content:center;transition:opacity .5s,visibility .5s}
.loading-screen.hidden{opacity:0;visibility:hidden;pointer-events:none}
.loader-content{text-align:center}
.loader-logo{width:64px;height:64px;margin-bottom:16px;animation:pulse-logo 1.5s ease-in-out infinite}
@keyframes pulse-logo{0%,100%{transform:scale(1)}50%{transform:scale(1.1)}}
.loader-title{font-size:1.5rem;font-weight:700;color:var(--text-primary)}
.loader-pro{background:var(--gradient);-webkit-background-clip:text;-webkit-text-fill-color:transparent}
.loader-subtitle{color:var(--text-muted);font-size:.85rem;margin-top:4px}
.loader-bar{width:200px;height:3px;background:var(--bg-card);border-radius:10px;margin:16px auto 0;overflow:hidden}
.loader-bar-fill{width:40%;height:100%;background:var(--gradient);border-radius:10px;animation:load-bar 1.5s ease-in-out infinite}
@keyframes load-bar{0%{transform:translateX(-100%)}100%{transform:translateX(350%)}}

/* ===== App ===== */
.app-container{display:flex;height:100vh;height:100dvh;width:100%}

/* ===== Sidebar ===== */
.sidebar{width:var(--sidebar-width);min-width:var(--sidebar-width);background:var(--bg-secondary);border-right:1px solid var(--border);display:flex;flex-direction:column;z-index:100;position:relative;overflow:hidden;transition:background var(--transition),border-color var(--transition)}
.sidebar-header{padding:16px 20px;border-bottom:1px solid var(--border);flex-shrink:0;display:flex;align-items:center;justify-content:space-between;gap:8px}
.brand{display:flex;align-items:center;gap:10px;flex:1}
.brand-logo{width:36px;height:36px;flex-shrink:0}
.brand-name{font-size:1.05rem;font-weight:700;color:var(--text-primary);line-height:1.2}
.brand-pro{background:var(--gradient);-webkit-background-clip:text;-webkit-text-fill-color:transparent}
.brand-tagline{font-size:.68rem;color:var(--text-muted);font-weight:500;text-transform:uppercase;letter-spacing:.5px;margin-top:1px}
.header-actions{display:flex;gap:6px;flex-shrink:0}
.theme-btn,.info-btn{width:34px;height:34px;border-radius:var(--radius-sm);border:1px solid var(--border);background:var(--bg-card);color:var(--text-secondary);display:flex;align-items:center;justify-content:center;cursor:pointer;transition:all var(--transition)}
.theme-btn:hover,.info-btn:hover{border-color:var(--accent);color:var(--accent)}
.icon-moon{display:none}.dark-mode .icon-sun{display:none}.dark-mode .icon-moon{display:block}
.mobile-drag-handle{display:none}
.sidebar-content{flex:1;overflow-y:auto;padding:12px;display:flex;flex-direction:column;gap:12px}

/* ===== Panels ===== */
.panel{background:var(--bg-card);border:1px solid var(--border);border-radius:var(--radius-md);padding:16px;transition:border-color var(--transition),background var(--transition)}
.panel:hover{border-color:var(--border-hover)}
.panel-header{display:flex;align-items:center;gap:10px;margin-bottom:14px}
.panel-icon{width:32px;height:32px;border-radius:var(--radius-sm);display:flex;align-items:center;justify-content:center;flex-shrink:0}
.upload-icon{background:rgba(37,99,235,.1);color:var(--accent)}
.stats-icon{background:rgba(6,182,212,.1);color:var(--accent2)}
.controls-icon{background:rgba(245,158,11,.1);color:var(--accent4)}
.stops-icon{background:rgba(16,185,129,.1);color:var(--accent3)}
.actions-icon{background:rgba(37,99,235,.1);color:var(--accent-light)}
.playback-icon{background:rgba(239,68,68,.1);color:var(--danger)}
.panel-title{font-size:.85rem;font-weight:600;color:var(--text-primary);flex:1}
.panel-badge{background:var(--gradient);color:#fff;font-size:.7rem;font-weight:700;padding:2px 8px;border-radius:20px}

/* ===== Upload ===== */
.upload-zone{border:2px dashed var(--border-hover);border-radius:var(--radius-md);padding:20px 16px;text-align:center;cursor:pointer;transition:all var(--transition);background:var(--bg-surface);color:var(--text-muted)}
.upload-zone:hover,.upload-zone.drag-over{border-color:var(--accent);background:rgba(37,99,235,.05)}
.upload-text{font-size:.82rem;color:var(--text-secondary);margin-top:8px}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;border:none;border-radius:var(--radius-sm);cursor:pointer;font-family:var(--font);font-weight:600;font-size:.82rem;transition:all var(--transition)}
.btn-primary{background:var(--gradient);color:#fff;padding:10px 16px;width:100%;margin-top:10px}
.btn-primary:hover{opacity:.9;transform:translateY(-1px);box-shadow:0 4px 20px rgba(37,99,235,.25)}

/* ===== Stats ===== */
.stats-grid{display:grid;grid-template-columns:1fr 1fr;gap:8px}
.stat-card{background:var(--bg-surface);border:1px solid var(--border);border-radius:var(--radius-sm);padding:12px;display:flex;align-items:center;gap:10px;transition:all var(--transition)}
.stat-card:hover{border-color:var(--border-hover);transform:translateY(-1px)}
.stat-icon-wrap{width:36px;height:36px;border-radius:var(--radius-sm);display:flex;align-items:center;justify-content:center;flex-shrink:0;background:var(--bg-card)}
.stat-info{display:flex;flex-direction:column;min-width:0}
.stat-value{font-size:.92rem;font-weight:700;color:var(--text-primary);font-family:var(--font-mono);white-space:nowrap}
.stat-label{font-size:.62rem;color:var(--text-muted);text-transform:uppercase;letter-spacing:.3px;font-weight:500}
.time-info{margin-top:10px;display:flex;flex-direction:column;gap:5px}
.time-row{display:flex;align-items:center;justify-content:space-between;padding:6px 10px;background:var(--bg-surface);border-radius:var(--radius-sm);border:1px solid var(--border)}
.time-label{display:flex;align-items:center;gap:6px;font-size:.73rem;color:var(--text-muted)}
.time-value{font-size:.76rem;font-weight:600;color:var(--text-secondary);font-family:var(--font-mono)}

/* ===== Map Style Grid ===== */
.control-group{margin-bottom:14px}.control-group:last-child{margin-bottom:0}
.control-label{font-size:.72rem;color:var(--text-muted);text-transform:uppercase;letter-spacing:.5px;font-weight:600;margin-bottom:8px;display:block}
.map-style-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:6px}
.map-style-btn{background:var(--bg-surface);border:1px solid var(--border);border-radius:var(--radius-sm);padding:10px 4px;color:var(--text-secondary);cursor:pointer;font-family:var(--font);font-size:.68rem;font-weight:500;display:flex;flex-direction:column;align-items:center;gap:4px;transition:all var(--transition)}
.map-style-btn:hover{border-color:var(--border-hover);color:var(--text-primary)}
.map-style-btn.active{border-color:var(--accent);background:rgba(37,99,235,.08);color:var(--accent)}

/* ===== Toggles ===== */
.toggle-list{display:flex;flex-direction:column;gap:4px}
.toggle-item{display:flex;align-items:center;justify-content:space-between;padding:8px 10px;background:var(--bg-surface);border:1px solid var(--border);border-radius:var(--radius-sm);cursor:pointer;transition:all var(--transition)}
.toggle-item:hover{border-color:var(--border-hover)}
.toggle-text{display:flex;align-items:center;gap:8px;font-size:.8rem;color:var(--text-secondary)}
.toggle-dot{width:8px;height:8px;border-radius:50%}
.route-dot{background:var(--accent)}.stop-dot{background:var(--accent3)}.se-dot{background:var(--accent4)}
.heat-dot{background:linear-gradient(90deg,#22c55e,#eab308,#ef4444)}
.toggle-input{display:none}
.toggle-switch{width:36px;height:20px;background:var(--toggle-bg);border-radius:20px;position:relative;transition:background var(--transition);flex-shrink:0}
.toggle-switch::after{content:'';position:absolute;width:14px;height:14px;border-radius:50%;background:#fff;top:3px;left:3px;transition:all var(--transition);box-shadow:0 1px 3px rgba(0,0,0,.2)}
.toggle-input:checked+.toggle-switch{background:var(--toggle-checked)}
.toggle-input:checked+.toggle-switch::after{transform:translateX(16px)}

/* ===== Playback ===== */
.playback-controls{display:flex;flex-direction:column;gap:10px}
.playback-progress-wrap{padding:4px 0}
.playback-progress{height:6px;background:var(--bg-surface);border-radius:3px;position:relative;cursor:pointer;border:1px solid var(--border)}
.playback-progress-fill{height:100%;background:var(--gradient);border-radius:3px;width:0;transition:width .1s}
.playback-thumb{width:14px;height:14px;border-radius:50%;background:var(--accent);position:absolute;top:-4px;left:0;box-shadow:var(--shadow-sm);cursor:grab;transition:left .1s}
.playback-time{display:flex;justify-content:space-between;font-size:.7rem;color:var(--text-muted);font-family:var(--font-mono)}
.playback-btns{display:flex;align-items:center;gap:8px}
.play-btn,.stop-btn{width:40px;height:40px;border-radius:50%;border:1px solid var(--border);background:var(--bg-surface);color:var(--text-primary);display:flex;align-items:center;justify-content:center;cursor:pointer;transition:all var(--transition)}
.play-btn:hover{border-color:var(--accent);color:var(--accent);background:rgba(37,99,235,.08)}
.stop-btn:hover{border-color:var(--danger);color:var(--danger)}
.speed-selector{margin-left:auto;display:flex;align-items:center;gap:6px}
.speed-selector select{background:var(--bg-surface);border:1px solid var(--border);border-radius:var(--radius-sm);padding:6px 10px;color:var(--text-primary);font-family:var(--font);font-size:.78rem;cursor:pointer;outline:none}
.speed-selector .control-label{margin-bottom:0}

/* ===== Stops ===== */
.stops-list{max-height:260px;overflow-y:auto;display:flex;flex-direction:column;gap:4px}
.stop-item{display:flex;align-items:center;gap:10px;padding:10px;background:var(--bg-surface);border:1px solid var(--border);border-radius:var(--radius-sm);cursor:pointer;transition:all var(--transition)}
.stop-item:hover{border-color:var(--accent);background:rgba(37,99,235,.04);transform:translateX(2px)}
.stop-number{width:26px;height:26px;border-radius:50%;background:var(--gradient);color:#fff;font-size:.7rem;font-weight:700;display:flex;align-items:center;justify-content:center;flex-shrink:0}
.stop-details{flex:1;min-width:0}.stop-name{font-size:.78rem;font-weight:600;color:var(--text-primary);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.stop-meta{font-size:.68rem;color:var(--text-muted);margin-top:2px}

/* ===== Actions ===== */
.actions-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:6px}
.action-btn{background:var(--bg-surface);border:1px solid var(--border);border-radius:var(--radius-sm);padding:12px 4px;color:var(--text-secondary);cursor:pointer;font-family:var(--font);font-size:.65rem;font-weight:500;display:flex;flex-direction:column;align-items:center;gap:6px;transition:all var(--transition)}
.action-btn:hover{border-color:var(--accent);color:var(--accent);background:rgba(37,99,235,.04)}

/* ===== Map ===== */
.map-wrapper{flex:1;position:relative}.map-container{width:100%;height:100%}
.leaflet-container{background:var(--map-bg)!important}
.floating-controls{position:absolute;right:12px;top:12px;z-index:90;display:none;flex-direction:column;gap:8px}
.float-btn{width:44px;height:44px;background:var(--bg-secondary);border:1px solid var(--border);border-radius:var(--radius-sm);color:var(--text-primary);display:flex;align-items:center;justify-content:center;cursor:pointer;box-shadow:var(--shadow-md);transition:all var(--transition)}
.float-btn:hover{border-color:var(--accent)}
.speed-legend{position:absolute;bottom:24px;left:50%;transform:translateX(-50%);background:var(--bg-secondary);border:1px solid var(--border);border-radius:var(--radius-sm);padding:8px 16px;z-index:90;display:flex;align-items:center;gap:10px;box-shadow:var(--shadow-md)}
.legend-title{font-size:.7rem;font-weight:600;color:var(--text-muted)}
.legend-bar{width:100px;height:6px;border-radius:3px;background:linear-gradient(90deg,#ef4444,#eab308,#22c55e)}
.legend-labels{display:flex;gap:30px;font-size:.6rem;color:var(--text-muted)}

/* ===== Leaflet Popup ===== */
.leaflet-popup-content-wrapper{background:var(--bg-secondary)!important;border:1px solid var(--border)!important;border-radius:var(--radius-md)!important;box-shadow:var(--shadow-lg)!important;color:var(--text-primary)!important}
.leaflet-popup-tip{background:var(--bg-secondary)!important}
.leaflet-popup-content{margin:12px 14px!important;font-family:var(--font)!important;font-size:.82rem!important}
.popup-title{font-weight:700;font-size:.9rem;margin-bottom:6px;color:var(--text-primary)}
.popup-meta{font-size:.75rem;color:var(--text-muted);line-height:1.6}
.popup-meta strong{color:var(--text-secondary)}

/* ===== Custom Markers ===== */
.custom-marker{width:28px;height:28px;border-radius:50% 50% 50% 0;transform:rotate(-45deg);display:flex;align-items:center;justify-content:center;box-shadow:0 2px 8px rgba(0,0,0,.3);border:2px solid #fff}
.custom-marker-inner{transform:rotate(45deg);font-size:10px;font-weight:700;color:#fff}
.marker-stop{background:var(--accent3)}.marker-start{background:var(--accent);width:32px;height:32px}.marker-end{background:var(--danger);width:32px;height:32px}
.anim-marker{width:16px;height:16px;border-radius:50%;background:var(--accent);border:3px solid #fff;box-shadow:0 0 12px rgba(37,99,235,.5);z-index:900!important}

/* ===== Toast ===== */
.toast{position:fixed;bottom:30px;left:50%;transform:translateX(-50%) translateY(100px);background:var(--bg-secondary);border:1px solid var(--border);padding:12px 20px;border-radius:var(--radius-md);color:var(--text-primary);font-size:.82rem;font-weight:500;box-shadow:var(--shadow-lg);z-index:9999;transition:transform .4s cubic-bezier(.34,1.56,.64,1);pointer-events:none}
.toast.show{transform:translateX(-50%) translateY(0)}

/* ===== Credits Popup ===== */
.popup-overlay{position:fixed;inset:0;background:rgba(15,23,42,.55);backdrop-filter:blur(5px);display:flex;justify-content:center;align-items:center;padding:20px;z-index:10000}
.popup{width:100%;max-width:460px;background:var(--popup-bg);border-radius:24px;padding:36px 32px;box-shadow:0 20px 60px rgba(0,0,0,.15);position:relative;overflow:hidden;animation:popupShow .35s ease;color:var(--popup-text)}
@keyframes popupShow{from{opacity:0;transform:translateY(20px) scale(.96)}to{opacity:1;transform:translateY(0) scale(1)}}
.popup::before{content:'';position:absolute;width:180px;height:180px;background:rgba(37,99,235,.06);border-radius:50%;top:-80px;right:-80px}
.close-btn{position:absolute;top:16px;right:16px;width:34px;height:34px;border:none;border-radius:50%;background:var(--bg-card);color:var(--accent3);font-size:22px;font-weight:900;display:flex;justify-content:center;align-items:center;cursor:pointer;transition:.2s}
.close-btn:hover{background:var(--border)}
.logo-box{background:var(--popup-bg);border-radius:18px;padding:16px;display:flex;justify-content:center;margin-bottom:24px;border:1px solid var(--popup-border)}
.company-logo{width:180px;height:auto}
.app-header-popup{display:flex;align-items:center;justify-content:center;gap:12px;margin-bottom:6px}
.app-icon-popup{width:40px;height:40px}
.popup-app-name{font-size:1.6rem;font-weight:700;color:var(--popup-text);letter-spacing:-.5px}
.pro-text{background:var(--gradient);-webkit-background-clip:text;-webkit-text-fill-color:transparent}
.popup-tagline{text-align:center;color:var(--popup-muted);font-size:.88rem;margin-bottom:28px}
.popup-divider{height:1px;background:var(--popup-border);margin:20px 0}
.popup-credit{margin-bottom:18px}
.popup-credit-label{font-size:.72rem;text-transform:uppercase;letter-spacing:1px;color:var(--popup-muted);margin-bottom:4px}
.popup-credit-value{font-size:1.05rem;font-weight:600;color:var(--popup-text)}
.popup-footer{margin-top:24px;text-align:center;font-size:.78rem;color:var(--popup-muted)}
.highlight-text{color:#f97316;font-weight:600}

/* ===== Mobile Peek Bar ===== */
.mobile-peek-bar{display:none}

/* ===== Mobile ===== */
@media(max-width:768px){
    .app-container{flex-direction:column;position:relative}
    .map-wrapper{position:absolute;inset:0;z-index:1}
    .sidebar{position:fixed;bottom:0;left:0;right:0;width:100%;min-width:100%;height:auto;max-height:75vh;border-right:none;border-top:1px solid var(--border);border-radius:var(--radius-xl) var(--radius-xl) 0 0;z-index:200;transform:translateY(calc(100% - 64px));transition:transform .4s cubic-bezier(.4,0,.2,1);box-shadow:0 -4px 32px rgba(0,0,0,.15)}
    .sidebar.expanded{transform:translateY(0)}
    .sidebar-header{padding:0;flex-direction:column;border-bottom:none}.brand{display:none}.header-actions{display:none}
    .mobile-drag-handle{display:flex;justify-content:center;width:100%;padding:12px 0 8px;cursor:pointer;-webkit-tap-highlight-color:transparent}
    .drag-bar{width:40px;height:4px;border-radius:2px;background:var(--border-hover)}
    .sidebar-content{padding:8px 12px 80px}
    .mobile-peek-bar{display:flex;align-items:center;justify-content:space-between;padding:10px 16px;background:var(--bg-secondary);border-top:1px solid var(--border);position:absolute;bottom:0;left:0;right:0;cursor:pointer;-webkit-tap-highlight-color:transparent}
    .peek-stats{display:flex;align-items:center;gap:8px;font-size:.75rem;color:var(--text-secondary);pointer-events:none}
    .peek-item{display:flex;align-items:center;gap:4px}.peek-divider{color:var(--border-hover)}
    .btn-expand{width:36px;height:36px;background:var(--gradient);border:none;border-radius:50%;color:#fff;display:flex;align-items:center;justify-content:center;cursor:pointer;transition:transform var(--transition);pointer-events:none}
    .sidebar.expanded .btn-expand{transform:rotate(180deg)}
    .floating-controls{display:flex}
    .speed-legend{bottom:80px}
}
@media(max-width:380px){.stats-grid{grid-template-columns:1fr}.actions-grid{grid-template-columns:repeat(2,1fr)}}