:root{--bg: #F8FAFC;--bg-deep: #F1F5F9;--surface: #FFFFFF;--surface-2: #F8FAFC;--surface-3: #F1F5F9;--ink: #0F172A;--ink-2: #334155;--muted: #475569;--muted-2: #64748B;--hairline: #E2E8F0;--hairline-strong: #CBD5E1;--solar: #D97706;--solar-deep: #92400E;--solar-soft: #FCD34D;--solar-tint: #FEF3C7;--solar-glow: rgba(217, 119, 6, .15);--savings: #047857;--savings-deep: #065F46;--savings-soft: #D1FAE5;--savings-tint: #ECFDF5;--tech: #2563EB;--tech-deep: #1D4ED8;--tech-soft: #DBEAFE;--warn: #B45309;--warn-soft: #FEF3C7;--warn-border: #FDE68A;--danger: #DC2626;--danger-soft: #FEE2E2;--font-display: "Geist", "Helvetica Neue", sans-serif;--font-sans: "Geist", "Helvetica Neue", sans-serif;--font-mono: "Geist Mono", "JetBrains Mono", ui-monospace, monospace;--shadow-sm: 0 1px 2px rgba(15, 23, 42, .04);--shadow: 0 1px 3px rgba(15, 23, 42, .06), 0 1px 2px rgba(15, 23, 42, .04);--shadow-md: 0 4px 12px rgba(15, 23, 42, .06), 0 2px 4px rgba(15, 23, 42, .04);--shadow-lg: 0 12px 32px rgba(15, 23, 42, .08), 0 4px 8px rgba(15, 23, 42, .04);--ring: 0 0 0 3px rgba(245, 158, 11, .2);--radius: 12px;--radius-lg: 16px;--accent: var(--solar)}html[data-theme=dark]{--bg: #020617;--bg-deep: #0F172A;--surface: #0F172A;--surface-2: #1E293B;--surface-3: #1E293B;--ink: #F8FAFC;--ink-2: #E2E8F0;--muted: #94A3B8;--muted-2: #64748B;--hairline: #1E293B;--hairline-strong: #334155;--solar: #FBBF24;--solar-deep: #F59E0B;--solar-soft: #FCD34D;--solar-tint: rgba(251, 191, 36, .14);--solar-glow: rgba(251, 191, 36, .25);--accent: var(--solar);--savings: #34D399;--savings-deep: #10B981;--savings-soft: rgba(52, 211, 153, .16);--savings-tint: rgba(52, 211, 153, .08);--tech: #60A5FA;--tech-deep: #3B82F6;--tech-soft: rgba(96, 165, 250, .18);--warn: #FBBF24;--warn-soft: rgba(251, 191, 36, .14);--warn-border: rgba(251, 191, 36, .3);--danger: #F87171;--danger-soft: rgba(248, 113, 113, .14);--shadow-sm: 0 1px 2px rgba(0, 0, 0, .4);--shadow: 0 1px 3px rgba(0, 0, 0, .5), 0 1px 2px rgba(0, 0, 0, .4);--shadow-md: 0 4px 12px rgba(0, 0, 0, .45), 0 2px 4px rgba(0, 0, 0, .3);--shadow-lg: 0 12px 32px rgba(0, 0, 0, .55), 0 4px 8px rgba(0, 0, 0, .3);--ring: 0 0 0 3px rgba(251, 191, 36, .3)}*{box-sizing:border-box;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}html,body{margin:0;padding:0}html{background:var(--bg);transition:background-color .2s ease}body{background:var(--bg);color:var(--ink);font-family:var(--font-sans);font-size:15px;line-height:1.5;font-feature-settings:"ss01","ss02","cv11";transition:background-color .2s ease,color .2s ease}h1,h2,h3,h4,h5,h6{color:var(--ink);margin:0}.font-display{font-family:var(--font-display);letter-spacing:-.035em;font-weight:600}.font-mono{font-family:var(--font-mono);font-feature-settings:"tnum"}.tnum{font-variant-numeric:tabular-nums}.eyebrow{font-family:var(--font-sans);font-size:11px;letter-spacing:.1em;text-transform:uppercase;color:var(--muted);font-weight:600}.hairline{border-color:var(--hairline)!important}.input{width:100%;background:var(--surface);border:1px solid var(--hairline-strong);border-radius:10px;padding:10px 12px;font-family:var(--font-sans);font-size:14px;color:var(--ink);outline:none;transition:border-color .12s,box-shadow .12s,background-color .2s;font-variant-numeric:tabular-nums}.input::placeholder{color:var(--muted-2)}.input:focus{border-color:var(--solar);box-shadow:var(--ring)}.input.with-prefix{padding-left:28px}.input.with-suffix{padding-right:56px}.input-wrap{position:relative}.input-prefix,.input-suffix{position:absolute;top:50%;transform:translateY(-50%);font-size:13px;color:var(--muted);pointer-events:none;font-variant-numeric:tabular-nums}.input-prefix{left:12px}.input-suffix{right:12px}label.field-label{display:flex;align-items:center;gap:6px;font-size:13px;font-weight:500;color:var(--ink-2);margin-bottom:6px}.slider{-webkit-appearance:none;-moz-appearance:none;appearance:none;width:100%;height:4px;background:var(--hairline-strong);border-radius:999px;outline:none;margin:8px 0}.slider::-webkit-slider-thumb{-webkit-appearance:none;width:18px;height:18px;border-radius:999px;background:var(--solar);border:3px solid var(--surface);box-shadow:var(--shadow);cursor:pointer;transition:transform .1s}.slider::-webkit-slider-thumb:hover{transform:scale(1.1)}.slider::-moz-range-thumb{width:14px;height:14px;border-radius:999px;background:var(--solar);border:3px solid var(--surface);box-shadow:var(--shadow);cursor:pointer}.chip{display:inline-flex;align-items:center;gap:6px;padding:7px 12px;border:1px solid var(--hairline-strong);border-radius:8px;background:var(--surface);font-size:12.5px;font-weight:500;color:var(--ink-2);cursor:pointer;transition:all .12s;font-variant-numeric:tabular-nums;font-family:var(--font-sans)}.chip:hover{border-color:var(--ink-2);color:var(--ink)}.chip.active{background:var(--ink);color:var(--bg);border-color:var(--ink)}.chip.solar.active{background:var(--solar);border-color:var(--solar);color:#0f172a;box-shadow:0 1px 0 var(--solar-deep),0 4px 12px var(--solar-glow)}.card{background:var(--surface);border:1px solid var(--hairline);border-radius:var(--radius-lg);padding:24px;box-shadow:var(--shadow-sm);transition:background-color .2s,border-color .2s,box-shadow .2s}.card.flat{background:var(--surface-2);box-shadow:none}.card.dark{background:var(--ink);color:var(--bg);border-color:var(--ink)}.card.dark .eyebrow{color:#ffffff8c}.card.interactive{cursor:pointer}.card.interactive:hover{box-shadow:var(--shadow-md);border-color:var(--hairline-strong)}.tt{position:relative;display:inline-flex;align-items:center;justify-content:center;width:14px;height:14px;border-radius:999px;border:1px solid var(--muted-2);color:var(--muted);font-size:9px;font-weight:600;cursor:help;background:transparent}.tt:hover .tt-body{opacity:1;transform:translate(-50%,-4px);pointer-events:auto}.tt-body{position:absolute;bottom:100%;left:50%;transform:translate(-50%,4px);background:var(--ink);color:var(--bg);padding:9px 11px;border-radius:8px;font-size:12px;line-height:1.4;font-weight:400;width:240px;opacity:0;pointer-events:none;transition:all .15s;z-index:20;text-align:left;letter-spacing:0;text-transform:none;box-shadow:var(--shadow-md)}.tt-body:after{content:"";position:absolute;top:100%;left:50%;transform:translate(-50%);border:5px solid transparent;border-top-color:var(--ink)}.rule{height:1px;background:var(--hairline);border:none;margin:0}.rule-strong{background:var(--hairline-strong)}.stat-label{font-size:11px;text-transform:uppercase;letter-spacing:.1em;color:var(--muted);font-weight:600}.stat-value{font-family:var(--font-display);font-size:40px;line-height:1.05;color:var(--ink);letter-spacing:-.035em;font-weight:600}.stat-sub{font-size:13px;color:var(--muted)}.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:10px 18px;border-radius:10px;font-family:var(--font-sans);font-size:14px;font-weight:600;border:none;cursor:pointer;transition:all .12s ease;letter-spacing:-.005em}.btn:disabled{cursor:not-allowed}.btn-primary{background:var(--ink);color:var(--bg)}.btn-primary:hover{transform:translateY(-1px);box-shadow:var(--shadow-md)}.btn-solar{background:var(--solar);color:#0f172a;box-shadow:0 1px 0 var(--solar-deep),0 6px 16px var(--solar-glow)}.btn-solar:hover:not(:disabled){transform:translateY(-1px);box-shadow:0 1px 0 var(--solar-deep),0 10px 24px var(--solar-glow)}.btn-ghost{background:var(--surface);color:var(--ink-2);border:1px solid var(--hairline-strong)}.btn-ghost:hover{border-color:var(--ink-2);color:var(--ink)}.btn-savings{background:var(--savings);color:#fff;box-shadow:0 1px 0 var(--savings-deep),0 4px 12px #10b98140}.btn-savings:hover:not(:disabled){transform:translateY(-1px)}.btn-sm{padding:8px 14px;font-size:13px}.tag{display:inline-flex;align-items:center;gap:6px;padding:4px 10px;border-radius:999px;font-size:11px;font-weight:600;letter-spacing:.02em}.tag.solar{background:var(--solar-tint);color:var(--solar-deep)}.tag.savings{background:var(--savings-soft);color:var(--savings-deep)}.tag.warn{background:var(--warn-soft);color:var(--warn)}.tag.tech{background:var(--tech-soft);color:var(--tech-deep)}html[data-theme=dark] .tag.solar{color:var(--solar)}html[data-theme=dark] .tag.savings{color:var(--savings)}html[data-theme=dark] .tag.tech{color:var(--tech)}.tab{padding:10px 14px;font-size:13px;color:var(--muted);border:none;background:transparent;cursor:pointer;border-bottom:2px solid transparent;font-weight:500;transition:color .12s,border-color .12s;font-family:var(--font-sans)}.tab:hover{color:var(--ink-2)}.tab.active{color:var(--ink);border-bottom-color:var(--solar)}.scenario-table{width:100%;border-collapse:collapse;font-variant-numeric:tabular-nums}.scenario-table th{text-align:left;font-size:11px;font-weight:600;letter-spacing:.06em;text-transform:uppercase;color:var(--ink-2);padding:12px 16px;border-bottom:1px solid var(--hairline)}.scenario-table td{padding:16px;border-bottom:1px solid var(--hairline);font-size:14px}.scenario-table tr:last-child td{border-bottom:none}.scenario-table tr.recommended{background:var(--solar-tint)}.scenario-table tr.recommended td:first-child{position:relative}.scenario-table tr.recommended td:first-child:before{content:"";position:absolute;left:0;top:0;bottom:0;width:3px;background:var(--solar)}.coverage-bar{position:relative;height:10px;background:var(--bg-deep);border-radius:999px;overflow:hidden}.coverage-bar>div{position:absolute;inset:0 auto 0 0;background:linear-gradient(90deg,var(--solar-soft),var(--solar));border-radius:999px;transition:width .5s cubic-bezier(.2,.7,.2,1);box-shadow:0 0 12px var(--solar-glow)}.seg{display:inline-flex;background:var(--bg-deep);border-radius:10px;padding:3px;gap:2px;border:1px solid var(--hairline)}.seg button{padding:6px 14px;font-size:12.5px;border:none;background:transparent;color:var(--ink-2);cursor:pointer;border-radius:7px;font-weight:500;font-family:var(--font-sans);transition:background .15s,color .15s}.seg button.active{background:var(--surface);color:var(--ink);box-shadow:var(--shadow-sm);font-weight:600}.alert{display:flex;gap:10px;padding:12px 14px;border-radius:10px;font-size:13px;line-height:1.5;border:1px solid;align-items:flex-start}.alert.warn{background:var(--warn-soft);border-color:var(--warn-border);color:var(--warn)}.alert.info{background:var(--tech-soft);border-color:var(--tech-soft);color:var(--tech-deep)}.alert.ok{background:var(--savings-soft);border-color:var(--savings-soft);color:var(--savings-deep)}html[data-theme=dark] .alert.warn{color:var(--warn)}html[data-theme=dark] .alert.info{color:var(--tech);border-color:#60a5fa4d}html[data-theme=dark] .alert.ok{color:var(--savings);border-color:#34d3994d}.alert .dot{width:6px;height:6px;border-radius:999px;margin-top:7px;flex-shrink:0}.alert.warn .dot{background:var(--solar)}.alert.info .dot{background:var(--tech)}.alert.ok .dot{background:var(--savings)}@keyframes sunPulse{0%,to{transform:scale(1);opacity:1}50%{transform:scale(1.06);opacity:.92}}.sun-mark{animation:sunPulse 4s ease-in-out infinite;transform-origin:center}.theme-toggle{display:inline-flex;align-items:center;background:var(--surface);border:1px solid var(--hairline-strong);border-radius:999px;padding:3px;cursor:pointer;gap:0;position:relative;transition:background-color .2s,border-color .2s}.theme-toggle button{width:30px;height:30px;border:none;background:transparent;color:var(--muted);cursor:pointer;border-radius:999px;display:inline-flex;align-items:center;justify-content:center;transition:color .15s;z-index:1}.theme-toggle button.active{color:var(--ink)}.theme-toggle .pill{position:absolute;width:30px;height:30px;border-radius:999px;background:var(--bg-deep);top:3px;left:3px;transition:transform .25s cubic-bezier(.5,.2,.2,1);box-shadow:var(--shadow-sm)}.theme-toggle.dark .pill{transform:translate(30px)}.hero-bg{position:relative;isolation:isolate}.hero-bg:before{content:"";position:absolute;z-index:-1;inset:-120px -120px auto auto;width:480px;height:480px;background:radial-gradient(circle at center,var(--solar-glow),transparent 70%);filter:blur(40px);pointer-events:none}.no-scrollbar::-webkit-scrollbar{display:none}.no-scrollbar{scrollbar-width:none}.toast-container{position:fixed;bottom:24px;right:24px;display:flex;flex-direction:column;gap:12px;z-index:1000;pointer-events:none}.toast{pointer-events:auto;min-width:300px;max-width:400px;background:var(--ink);color:var(--bg);padding:16px 20px;border-radius:12px;box-shadow:var(--shadow-lg);display:flex;align-items:center;gap:12px;font-size:14px;font-weight:500;animation:toast-in .3s cubic-bezier(.16,1,.3,1),toast-out .3s 2.7s cubic-bezier(.16,1,.3,1) forwards;border:1px solid var(--hairline-strong)}.toast.info{border-left:4px solid var(--tech)}@keyframes toast-in{0%{transform:translateY(20px);opacity:0}to{transform:translateY(0);opacity:1}}@keyframes toast-out{0%{transform:translateY(0);opacity:1}to{transform:translateY(-10px);opacity:0}}.card,.input,.chip,.btn,.seg,.scenario-table th,.scenario-table td,.alert,.theme-toggle{transition:background-color .2s ease,border-color .2s ease,color .2s ease,box-shadow .2s ease}@media (max-width: 720px){.stat-value{font-size:32px}.card{padding:18px;border-radius:14px}}