:root{--accent:var(--calc-color-environment);--bg-app:#050510;--bg-card:#0d0d1f;--bg-input:#111128;--text-primary:#fff;--text-secondary:#88a;--text-muted:#557;--border:#ffffff14;--radius:12px}[data-theme=light]{--bg-app:#e8edf5;--bg-card:#fff;--bg-input:#f0f4f9;--text-primary:#0f172a;--text-secondary:#334155;--text-muted:#64748b;--border:#0000001f}*{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}.calc-breadcrumb{color:var(--calc-text-muted);padding:10px 24px;font-size:.79rem}.calc-breadcrumb a{color:var(--text-secondary)}.main-container{max-width:1200px;margin:0 auto;padding:24px}.calc-title{margin-bottom:8px;font-size:2rem;font-weight:700}.calc-subtitle{color:var(--text-secondary);max-width:700px;margin-bottom:20px}.preset-row{flex-wrap:wrap;gap:8px;margin-bottom:20px;display:flex}.preset-chip{border:1px solid var(--border);color:var(--text-secondary);cursor:pointer;background:#ffffff0a;border-radius:20px;padding:6px 16px;font-family:inherit;font-size:.84rem;font-weight:600;transition:all .2s}.preset-chip:hover,.preset-chip.active{border-color:var(--accent);color:var(--accent);background:#a3e6351a}[data-theme=light] .preset-chip{color:#334155;background:#f0f4f9;border-color:#0000001f}[data-theme=light] .preset-chip:hover,[data-theme=light] .preset-chip.active{border-color:var(--accent);color:var(--accent);background:#3f621214}.tab-nav{border-bottom:1px solid var(--calc-border-default);margin-bottom:24px;display:flex}.tab-btn{color:var(--text-secondary);cursor:pointer;background:0 0;border:none;border-bottom:2px solid #0000;margin-bottom:-1px;padding:10px 22px;font-family:inherit;font-size:.9rem;transition:color .2s,border-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:1fr}}.card{border-radius:var(--radius);padding:20px}.input-card,.result-card{background:var(--bg-card);border:1px solid var(--border)}[data-theme=light] .input-card,[data-theme=light] .result-card{box-shadow:0 2px 12px #00000014}.section-title{text-transform:uppercase;letter-spacing:.06em;color:var(--accent);margin-bottom:12px;font-size:.75rem;font-weight:700}.form-group{margin-bottom:14px}.form-label{color:var(--text-secondary);margin-bottom:5px;font-size:.83rem;font-weight:500;display:block}.glass-input,.glass-select{background:var(--bg-input);border:1px solid var(--border);width:100%;color:var(--text-primary);border-radius:8px;outline:none;padding:9px 12px;font-family:inherit;font-size:.92rem;transition:border-color .2s}.glass-input:focus,.glass-select:focus{border-color:var(--accent)}.glass-input::placeholder{color:var(--text-muted)}[data-theme=light] .glass-input,[data-theme=light] .glass-select{color:#0f172a;background:#f0f4f9;border-color:#00000026}[data-theme=light] .glass-input::placeholder{color:#0006}[data-theme=light] .glass-input:focus,[data-theme=light] .glass-select:focus{border-color:var(--accent)}.inline-inputs{grid-template-columns:1fr 1fr;gap:10px;display:grid}.hero-result{background:var(--bg-card);border:1px solid var(--border);border-radius:var(--radius);text-align:center;margin-bottom:16px;padding:20px}.hero-label{text-transform:uppercase;letter-spacing:.06em;color:var(--text-muted);margin-bottom:6px;font-size:.78rem;font-weight:700}.hero-value{color:var(--accent);margin-bottom:6px;font-size:2.6rem;font-weight:800;line-height:1}.hero-sub{color:var(--text-secondary);font-size:.84rem}[data-theme=light] .hero-result{box-shadow:0 2px 12px #00000014}[data-theme=light] .hero-value{color:var(--accent)}.stat-grid{grid-template-columns:1fr 1fr;gap:10px;margin-bottom:16px;display:grid}.stat-card{background:var(--bg-card);border:1px solid var(--border);text-align:center;border-radius:10px;padding:14px}[data-theme=light] .stat-card{box-shadow:0 1px 4px #0000000f}.stat-label{color:var(--text-muted);text-transform:uppercase;letter-spacing:.05em;margin-bottom:4px;font-size:.74rem}.stat-value{color:var(--text-primary);font-size:1.25rem;font-weight:700}.stat-value--savings{color:#34d399}[data-theme=light] .stat-value--savings{color:#047857}[data-theme=light] .stat-value{color:#0f172a}[data-theme=light] .stat-label{color:#64748b}.hog-callout{background:#f59e0b14;border-left:4px solid #f59e0b;border-radius:0 10px 10px 0;margin-bottom:16px;padding:12px 16px}.hog-label{text-transform:uppercase;letter-spacing:.06em;color:#f59e0b;margin-bottom:4px;font-size:.72rem;font-weight:700}.hog-value{color:var(--text-primary);font-size:1.1rem;font-weight:700}.hog-pct{color:var(--text-secondary);margin-top:2px;font-size:.82rem}[data-theme=light] .hog-callout{background:#fffbeb;border-color:#b45309}[data-theme=light] .hog-label{color:#b45309}[data-theme=light] .hog-value{color:#0f172a}[data-theme=light] .hog-pct{color:#475569}.action-bar{flex-wrap:wrap;gap:8px;margin-top:14px;display:flex}.form-btn{color:var(--accent);cursor:pointer;background:#a3e6351a;border:1px solid #a3e6354d;border-radius:8px;padding:8px 16px;font-family:inherit;font-size:.84rem;font-weight:600;transition:all .2s}.form-btn:hover{background:#a3e6352e}.form-btn.btn-secondary{border-color:var(--border);color:var(--text-secondary);background:#ffffff0a}.form-btn.btn-secondary:hover{color:var(--text-primary);background:#ffffff14}[data-theme=light] .form-btn{color:#3f6212;background:#3f621214;border-color:#3f62124d}[data-theme=light] .form-btn:hover{background:#3f621226}[data-theme=light] .form-btn.btn-secondary{color:#334155;background:#f0f4f9;border-color:#00000026}[data-theme=light] .form-btn.btn-secondary:hover{color:#0f172a;background:#e2e8f0}.savings-header{margin-bottom:20px}.savings-intro{color:var(--text-secondary);margin-bottom:16px;font-size:.9rem}.savings-total-card{background:#34d39914;border:1px solid #34d39940;border-radius:12px;flex-wrap:wrap;align-items:center;gap:24px;padding:16px 20px;display:flex}[data-theme=light] .savings-total-card{background:#f0fdf4;border-color:#04785740}.savings-total-label{text-transform:uppercase;letter-spacing:.05em;color:#34d399;flex:1;min-width:160px;font-size:.8rem;font-weight:700}[data-theme=light] .savings-total-label{color:#047857}.savings-total-gal{color:#34d399;font-size:1.4rem;font-weight:800}[data-theme=light] .savings-total-gal{color:#047857}.savings-total-dollar{color:#34d399;font-size:1.2rem;font-weight:700}[data-theme=light] .savings-total-dollar{color:#047857}.savings-empty{color:var(--text-secondary);text-align:center;padding:32px 0;font-size:.9rem}.savings-list{flex-direction:column;gap:10px;display:flex}.savings-item{background:var(--bg-card);border:1px solid var(--border);border-radius:12px;align-items:center;gap:16px;padding:16px 18px;display:flex}[data-theme=light] .savings-item{box-shadow:0 1px 4px #0000000f}.savings-rank{width:32px;height:32px;color:var(--accent);background:#a3e6351f;border:1px solid #a3e6354d;border-radius:50%;flex-shrink:0;justify-content:center;align-items:center;font-size:.85rem;font-weight:700;display:flex}[data-theme=light] .savings-rank{color:#3f6212;background:#3f621214;border-color:#3f621240}.savings-details{flex:1;min-width:0}.savings-action{color:var(--text-primary);margin-bottom:2px;font-size:.95rem;font-weight:600}.savings-difficulty{color:var(--text-muted);font-size:.78rem}[data-theme=light] .savings-action{color:#0f172a}[data-theme=light] .savings-difficulty{color:#64748b}.savings-numbers{text-align:right;flex-shrink:0}.savings-gal{color:#34d399;font-size:1rem;font-weight:700}[data-theme=light] .savings-gal{color:#047857}.savings-dollar{color:var(--text-secondary);margin-top:2px;font-size:.82rem}[data-theme=light] .savings-dollar{color:#475569}.bill-intro{color:var(--text-secondary);margin-bottom:16px;font-size:.9rem}.bill-summary{background:var(--bg-card);border:1px solid var(--border);border-radius:12px;padding:16px 20px}[data-theme=light] .bill-summary{box-shadow:0 1px 4px #0000000f}.bill-summary-row{border-bottom:1px solid var(--border);justify-content:space-between;align-items:center;padding:8px 0;font-size:.9rem;display:flex}.bill-summary-row:last-child{border-bottom:none}.bill-summary-row--total{padding-top:12px;font-weight:700}.bill-summary-label{color:var(--text-secondary)}[data-theme=light] .bill-summary-label{color:#475569}.bill-summary-val{color:var(--text-primary);font-weight:600}[data-theme=light] .bill-summary-val{color:#0f172a}.bill-summary-val--savings{color:#34d399}[data-theme=light] .bill-summary-val--savings{color:#047857}.page-sections-outer{max-width:1200px;margin:0 auto;padding:0 24px 3rem}@media (width<=480px){.main-container{padding:16px}.calc-title{font-size:1.5rem}.hero-value{font-size:2rem}.inline-inputs,.stat-grid{grid-template-columns:1fr}}