:root{--accent:var(--calc-color-sports);--bg-app:#050510;--bg-card:#0d0d1f;--bg-input:#111128;--text-primary:#fff;--text-secondary:#88a;--text-muted:#557;--cyan:#22d3ee;--purple:#a855f7;--green:#10b981;--red:#f43f5e;--amber:#f59e0b;--border:#ffffff14;--radius:12px}*{box-sizing:border-box;margin:0;padding:0}body{background:var(--bg-app);color:var(--text-primary);min-height:100vh;font-family:Inter,sans-serif;line-height:1.5}a{color:inherit;text-decoration:none}.main-container{max-width:1200px;margin:0 auto;padding:24px}.page-header{margin-bottom:1.5rem}.breadcrumb{color:var(--calc-text-muted);margin-bottom:.5rem;font-size:.79rem}.page-title{margin-bottom:.25rem;font-size:2rem;font-weight:800}.page-sub{color:var(--text-secondary);font-size:.92rem}.tab-nav{border-bottom:1px solid var(--calc-border-default);margin-bottom:24px;display:flex;overflow-x:auto}.tab-btn{color:var(--text-secondary);cursor:pointer;white-space:nowrap;background:0 0;border:none;border-bottom:2px solid #0000;margin-bottom:-1px;padding:10px 22px;font-family:inherit;font-size:.9rem;transition:transform .25s,opacity .25s,color .2s}.tab-btn:hover{color:var(--text-primary)}.tab-btn.active{color:var(--accent);border-bottom-color:var(--accent);font-weight:600}.tab-content{display:none}.tab-content.active{display:block}.calc-layout{grid-template-columns:340px 1fr;align-items:start;gap:20px;display:grid}@media (width<=900px){.calc-layout{grid-template-columns:minmax(0,1fr);overflow:hidden}}.card{background:var(--calc-bg-card);border:1px solid var(--calc-border-default);border-radius:var(--calc-radius-md);padding:20px}.input-card{border-left:3px solid var(--calc-cyan)}.result-card{border-left:3px solid var(--purple)}.card-title{margin-bottom:4px;font-size:1rem;font-weight:700}.card-sub{color:var(--text-secondary);margin-bottom:16px;font-size:.82rem}.card-header-row{justify-content:space-between;align-items:center;margin-bottom:16px;display:flex}.card-header-row .card-title{margin-bottom:0}.form-group{margin-bottom:14px}.form-label{color:var(--text-secondary);margin-bottom:6px;font-size:.82rem;font-weight:500;display:block}.form-hint{color:var(--calc-text-muted);margin-top:4px;font-size:.75rem}.hint-label{color:var(--calc-text-muted);margin-bottom:5px;font-size:.75rem}.units-toggle{background:var(--bg-input);border:1px solid var(--calc-border-default);border-radius:8px;gap:3px;padding:3px;display:flex}.units-toggle button{color:var(--text-secondary);cursor:pointer;background:0 0;border:none;border-radius:6px;padding:4px 12px;font-family:inherit;font-size:.82rem;transition:transform .25s,color .2s}.units-toggle button.active{background:var(--accent);color:#000;font-weight:700}.pace-duo{grid-template-columns:1fr 1fr auto;align-items:center;gap:6px;display:grid}.time-field{align-items:center;gap:4px;display:flex}.time-field .glass-input{text-align:center}.time-label{color:var(--calc-text-muted);flex-shrink:0;font-size:.75rem}.pace-unit-badge{color:var(--calc-text-muted);white-space:nowrap;font-size:.82rem}.grade-row{grid-template-columns:1fr 80px;align-items:center;gap:8px;display:grid}.range-input{width:100%;accent-color:var(--accent);cursor:pointer;margin:6px 0}.range-hints{color:var(--calc-text-muted);justify-content:space-between;font-size:.72rem;display:flex}.grade-badge{min-height:18px;margin-top:3px;font-size:.78rem;font-weight:700}.grade-badge.uphill{color:var(--amber)}.grade-badge.downhill{color:var(--green)}.grade-badge.flat{color:var(--calc-text-muted)}.input-adorn-row{align-items:center;gap:8px;display:flex}.input-adorn-row .glass-input{flex:1}.adorn-unit{color:var(--calc-text-muted);white-space:nowrap;font-size:.82rem}.hero-result{text-align:center;border-radius:var(--calc-radius-md);background:linear-gradient(135deg,#fb923c14,#fb923c0a);border:1px solid #fb923c33;margin-bottom:16px;padding:20px}.hero-label{color:var(--calc-text-muted);text-transform:uppercase;letter-spacing:.08em;margin-bottom:4px;font-size:.75rem}.hero-value{color:var(--accent);font-size:2.4rem;font-weight:800;line-height:1.1}.hero-sub{color:var(--text-secondary);margin-top:4px;font-size:.87rem}.hero-sub2{color:var(--calc-text-muted);margin-top:2px;font-size:.8rem}.stat-grid{grid-template-columns:repeat(2,1fr);gap:10px;margin-bottom:16px;display:grid}.stat-grid-4{grid-template-columns:repeat(4,1fr)}@media (width<=600px){.stat-grid-4{grid-template-columns:repeat(2,1fr)}}.stat-card{border:1px solid var(--calc-border-default);border-left:3px solid var(--purple);background:#ffffff08;border-radius:10px;padding:11px 12px}.stat-label{color:var(--calc-text-muted);text-transform:uppercase;letter-spacing:.05em;margin-bottom:4px;font-size:.68rem}.stat-value{color:var(--text-primary);font-size:1rem;font-weight:700}.stat-value.positive{color:var(--red)}.stat-value.negative{color:var(--green)}.formula-strip{flex-wrap:wrap;gap:6px;margin-bottom:14px;display:flex;overflow-x:auto}.formula-pill{color:var(--accent);white-space:nowrap;background:#fb923c14;border:1px solid #fb923c40;border-radius:20px;flex-shrink:0;padding:4px 12px;font-size:.73rem}.chart-wrap{height:var(--chart-height,220px);position:relative}.chart-interp{color:var(--calc-text-muted);text-align:center;margin-top:6px;font-size:.78rem}.action-bar{flex-wrap:wrap;gap:8px;margin-top:12px;display:flex}.act-btn{color:var(--text-secondary);cursor:pointer;background:#ffffff0a;border:1px solid #ffffff1a;border-radius:8px;padding:7px 16px;font-family:inherit;font-size:.82rem;font-weight:600;transition:transform .25s,color .2s}.act-btn:hover{color:var(--accent);background:#fb923c14;border-color:#fb923c4d}.alert{border-left:3px solid;border-radius:8px;margin-top:12px;padding:9px 13px;font-size:.82rem}.alert-info{border-color:var(--cyan);color:#7fffd4;background:#22d3ee14}.alert-warn{border-color:var(--amber);color:#fcd34d;background:#f59e0b14}.alert-danger{border-color:var(--red);color:#fda4af;background:#f43f5e14}.alert-good{border-color:var(--green);color:#6ee7b7;background:#10b98114}.trail-layout{grid-template-columns:320px 1fr;align-items:start;gap:20px;display:grid}@media (width<=860px){.trail-layout{grid-template-columns:minmax(0,1fr)}}.compare-grid{grid-template-columns:repeat(3,1fr);gap:12px;margin-bottom:16px;display:grid}@media (width<=600px){.compare-grid{grid-template-columns:1fr}}.compare-card{border:1px solid var(--calc-border-default);text-align:center;background:#ffffff08;border-radius:12px;padding:14px}.compare-card.highlight{background:#fb923c0d;border-color:#fb923c66}.compare-card-label{color:var(--calc-text-muted);text-transform:uppercase;letter-spacing:.05em;margin-bottom:8px;font-size:.72rem}.compare-card-value{color:var(--text-primary);margin-bottom:3px;font-size:1.4rem;font-weight:800}.compare-card.highlight .compare-card-value{color:var(--accent)}.compare-card-sub{color:var(--text-secondary);font-size:.76rem}.trail-stats{grid-template-columns:repeat(2,1fr);gap:10px;margin-bottom:16px;display:grid}.alt-layout{grid-template-columns:340px 1fr;align-items:start;gap:20px;display:grid}@media (width<=900px){.alt-layout{grid-template-columns:minmax(0,1fr)}}.alt-tier{flex-direction:column;gap:8px;margin-top:8px;display:flex}.tier-row{border:1px solid var(--calc-border-default);background:#ffffff05;border-radius:10px;align-items:center;gap:10px;padding:10px 12px;font-size:.84rem;display:flex}.tier-row.active-tier{background:#fb923c0f;border-color:#fb923c66}.tier-dot{border-radius:50%;flex-shrink:0;width:10px;height:10px}.tier-dot-good{background:var(--green)}.tier-dot-warn{background:var(--amber)}.tier-dot-danger{background:var(--red)}.tier-name{color:var(--text-primary);flex:1;font-weight:700}.tier-note{color:var(--text-secondary);flex:2;font-size:.78rem}.table-wrapper{overflow-x:auto}.data-table{border-collapse:collapse;width:100%;font-size:.85rem}.data-table th{color:var(--accent);text-align:left;border-bottom:1px solid var(--calc-border-default);white-space:nowrap;background:#fb923c14;padding:9px 12px;font-weight:600}.data-table td{color:var(--text-secondary);border-bottom:1px solid #ffffff0a;padding:8px 12px}.data-table tr:hover td{background:#ffffff05}.highlight-row td{color:var(--accent);background:#fb923c14;font-weight:700}.page-sections-outer{max-width:1200px;margin:0 auto;padding:0 1.5rem 3rem}@media (width<=768px){.main-container{padding:14px}.page-title{font-size:1.55rem}.tab-btn{padding:8px 12px;font-size:.82rem}.hero-value{font-size:1.9rem}}.hidden{display:none}[data-theme=light]{--bg-app:#e8edf5;--bg-card:#fff;--bg-input:#f0f4f9;--text-primary:#0f172a;--text-secondary:#334155;--text-muted:#64748b;--cyan:#0891b2;--purple:#7c3aed;--green:#059669;--red:#dc2626;--amber:#b45309;--border:#0000001a;--accent:var(--calc-color-sports)}[data-theme=light] body{background:var(--bg-app);color:var(--text-primary)}[data-theme=light] .card{background:var(--calc-bg-card);border-color:#00000017;box-shadow:0 2px 10px #0000000f}[data-theme=light] .hero-result{background:linear-gradient(135deg,#c2410c0f,#c2410c08);border-color:#c2410c33}[data-theme=light] .hero-value{color:var(--accent)}[data-theme=light] .stat-card{background:#edf2f9;border-color:#00000014 #00000014 #00000014 #7c3aed}[data-theme=light] .stat-label{color:#64748b}[data-theme=light] .stat-value{color:#0f172a}[data-theme=light] .stat-value.positive{color:#dc2626}[data-theme=light] .stat-value.negative{color:#059669}[data-theme=light] .tab-nav{background:0 0}[data-theme=light] .tab-btn{color:#475569}[data-theme=light] .tab-btn.active{color:var(--accent)}[data-theme=light] .formula-pill{color:var(--accent);background:#c2410c14;border-color:#c2410c33}[data-theme=light] .act-btn{color:#334155;background:#edf2f9;border-color:#0000001f}[data-theme=light] .act-btn:hover{color:var(--accent);background:#c2410c14;border-color:#c2410c4d}[data-theme=light] .units-toggle{background:#edf2f9;border-color:#0000001a}[data-theme=light] .units-toggle button{color:#475569}[data-theme=light] .units-toggle button.active{background:var(--accent);color:#fff}[data-theme=light] .alert-info{color:#0369a1;background:#0891b214;border-color:#0891b24d}[data-theme=light] .alert-warn{color:#78350f;background:#b4530914;border-color:#b453094d}[data-theme=light] .alert-danger{color:#b91c1c;background:#dc262614;border-color:#dc26264d}[data-theme=light] .alert-good{color:#047857;background:#05966914;border-color:#0596694d}[data-theme=light] .data-table th{color:var(--accent);background:#c2410c12}[data-theme=light] .data-table td{color:#334155;border-bottom-color:#0000000f}[data-theme=light] .data-table tr:hover td{background:#00000006}[data-theme=light] .highlight-row td{color:var(--accent);background:#c2410c14}[data-theme=light] .compare-card{background:#edf2f9;border-color:#00000017}[data-theme=light] .compare-card.highlight{background:#c2410c0d;border-color:#c2410c66}[data-theme=light] .compare-card-value{color:#0f172a}[data-theme=light] .compare-card.highlight .compare-card-value{color:var(--accent)}[data-theme=light] .compare-card-sub{color:#475569}[data-theme=light] .tier-row{background:#f5f8fc;border-color:#00000017}[data-theme=light] .tier-row.active-tier{background:#c2410c0d;border-color:#c2410c66}[data-theme=light] .tier-name{color:#0f172a}[data-theme=light] .tier-note{color:#475569}[data-theme=light] .grade-badge.uphill{color:#b45309}[data-theme=light] .grade-badge.downhill{color:#059669}