:root{--bg:#f7f4f1;--card:#ffffff;--green:#143c2e;--green-hover:#1d5240;--sage:#6f8a74;--text:#1f1f1f;--text-2:#5c5c5c;--border:#e9e6e2;--success-bg:#eef4ef;--sand:#d9cbb8;--danger:#8a3b2e;--radius-card:24px;--radius-control:14px;--font:ui-sans-serif,-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,"Helvetica Neue",Arial,sans-serif}*{box-sizing:border-box}html{scroll-behavior:smooth;-webkit-tap-highlight-color:transparent}body{margin:0;background:var(--bg);color:var(--text);font-family:var(--font);font-size:17px;line-height:1.55;-webkit-font-smoothing:antialiased;overflow-x:hidden}main{max-width:640px;margin:0 auto;padding:0 20px 96px}h1,h2,h3{line-height:1.25;margin:0 0 12px;font-weight:600}h1{font-size:30px;letter-spacing:-.02em}@media (min-width:640px){h1{font-size:38px}}h2{font-size:27px;letter-spacing:-.015em}h3{font-size:20px}p{margin:0 0 14px}.muted{color:var(--text-2)}p.muted{font-size:16px;line-height:1.6}.small{font-size:14px}.chrome{position:-webkit-sticky;position:sticky;top:0;z-index:10;background:color-mix(in srgb,var(--bg) 88%,transparent);-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px)}.chrome-inner{max-width:640px;margin:0 auto;padding:12px 20px 10px;display:flex;align-items:baseline;justify-content:space-between;gap:12px}.chrome-title{font-size:13px;font-weight:600;color:var(--green);letter-spacing:.02em}.chrome-progress{font-size:13px;color:var(--text-2);font-feature-settings:"tnum";font-variant-numeric:tabular-nums}.progress-track{height:3px;background:var(--border)}.progress-fill{height:100%;background:var(--green);transition:width .4s ease}.section{padding-top:56px;animation:fade-up .5s ease both}.section--chapter{padding-top:112px}@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}.section{animation:none}}@keyframes fade-up{0%{opacity:0;transform:translateY(14px)}to{opacity:1;transform:none}}.kicker{font-size:13px;font-weight:600;color:var(--sage);text-transform:uppercase;letter-spacing:.08em;margin-bottom:8px}.card{background:var(--card);border:1px solid var(--border);border-radius:var(--radius-card);padding:24px;margin:18px 0;box-shadow:0 1px 2px rgba(31,31,31,.04)}.card--soft{background:var(--success-bg);border-color:color-mix(in srgb,var(--sage) 30%,var(--border))}.q-label{font-size:20px;font-weight:600;line-height:1.35;margin:0 0 14px}.q-block{margin:28px 0;animation:fade-up .4s ease both}.btn{display:inline-flex;align-items:center;justify-content:center;border-radius:999px;min-height:52px;padding:0 28px;font-size:17px;font-weight:600;font-family:var(--font);cursor:pointer;transition:background .15s ease,opacity .15s ease;border:1px solid transparent}.btn-primary{background:var(--green);color:#ffffff}.btn-primary:hover{background:var(--green-hover)}.btn-primary:disabled{opacity:.4;cursor:default}.btn-secondary{background:transparent;color:var(--green);border-color:var(--border)}.btn-secondary:hover{background:var(--success-bg)}.btn-row{display:flex;gap:12px;flex-wrap:wrap;margin-top:20px}.btn-row--stack{flex-direction:column;align-items:stretch}.btn-row--stack .btn{width:100%}.scale-row{display:flex;gap:8px;flex-wrap:nowrap}.scale-row--dense{gap:4px}.scale-row--dense .scale-chip{font-size:14px;border-radius:10px;padding:0}.scale-chip{flex:1 1;min-width:0;min-height:48px;border-radius:var(--radius-control);border:1px solid var(--border);background:var(--card);color:var(--text);font-size:17px;font-weight:500;font-family:var(--font);cursor:pointer;transition:background .12s ease,border-color .12s ease,color .12s ease}.scale-chip:hover{border-color:var(--sage)}.scale-chip[aria-pressed=true]{background:var(--green);border-color:var(--green);color:#ffffff}.scale-anchors{display:flex;justify-content:space-between;gap:16px;margin-top:8px;font-size:13px;color:var(--text-2)}.choice-list{display:flex;flex-direction:column;gap:10px}.choice-row{display:flex;align-items:center;justify-content:space-between;gap:12px;width:100%;text-align:left;border:1px solid var(--border);border-radius:var(--radius-control);background:var(--card);color:var(--text);padding:14px 18px;min-height:52px;font-size:17px;font-family:var(--font);cursor:pointer;transition:background .12s ease,border-color .12s ease}.choice-row:hover{border-color:var(--sage)}.choice-row[aria-pressed=true]{border-color:var(--green);background:var(--success-bg)}.choice-check{flex:none;width:22px;height:22px;border-radius:50%;border:1.5px solid var(--border);display:inline-flex;align-items:center;justify-content:center;font-size:13px;color:transparent;background:var(--card)}.choice-row[aria-pressed=true] .choice-check{background:var(--green);border-color:var(--green);color:#ffffff}.numeric-wrap{display:flex;align-items:center;gap:10px;border:1px solid var(--border);border-radius:var(--radius-control);background:var(--card);padding:6px 18px;max-width:220px;transition:border-color .12s ease}.numeric-wrap:focus-within{border-color:var(--green)}.numeric-wrap input{border:none;outline:none;background:transparent;font-size:22px;font-weight:600;font-family:var(--font);color:var(--text);width:100%;min-height:44px;font-feature-settings:"tnum";font-variant-numeric:tabular-nums}.numeric-suffix{font-size:20px;font-weight:600;color:var(--text-2)}.field-hint{color:var(--text-2)}.field-error,.field-hint{margin-top:6px;font-size:13px}.field-error{color:var(--danger)}.visual-title{font-size:15px;font-weight:600;color:var(--text-2);margin-bottom:12px}.schedule-list{display:flex;flex-direction:column;gap:8px}.schedule-item{display:flex;gap:12px;align-items:baseline;background:var(--bg);border-radius:12px;padding:13px 16px;font-size:16px}.schedule-item time{font-feature-settings:"tnum";font-variant-numeric:tabular-nums;font-weight:600;color:var(--text)}.schedule-item--accent{background:var(--success-bg)}.schedule-item--accent time{color:var(--green)}.schedule-drive{font-size:12.5px;color:var(--text-2);padding-left:14px}.compare-grid{display:grid;grid-gap:16px;gap:16px}@media (min-width:560px){.compare-grid{grid-template-columns:1fr 1fr}}.flow-steps{display:flex;flex-direction:column;align-items:stretch;gap:4px}.flow-step{background:var(--bg);border-radius:12px;padding:10px 16px;font-size:15px;text-align:center}.flow-arrow{text-align:center;color:var(--sage);font-size:14px;line-height:1}.capacity-bar{height:8px;border-radius:999px;background:var(--border);overflow:hidden;margin:10px 0 6px}.capacity-fill{height:100%;border-radius:999px;background:var(--sage)}.warn-card{border-color:color-mix(in srgb,var(--sand) 70%,var(--border));background:color-mix(in srgb,var(--sand) 18%,var(--card))}.form-grid{display:flex;flex-direction:column;gap:14px}.form-grid label{font-size:14px;font-weight:600;display:block;margin-bottom:6px}.text-input{width:100%;max-width:380px;border:1px solid var(--border);border-radius:var(--radius-control);background:var(--card);font-size:17px;font-family:var(--font);color:var(--text);padding:13px 16px;outline:none}.text-input:focus{border-color:var(--green)}.form-grid input{width:100%;border:1px solid var(--border);border-radius:var(--radius-control);background:var(--card);font-size:17px;font-family:var(--font);color:var(--text);padding:13px 16px;outline:none}.form-grid input:focus{border-color:var(--green)}.summary-list{display:flex;flex-direction:column}.summary-row{display:flex;justify-content:space-between;align-items:baseline;gap:16px;padding:9px 0;border-bottom:1px solid var(--border);font-size:15px}.summary-row:last-child{border-bottom:none}.summary-value{text-align:right;font-weight:500;flex:none;max-width:55%}.site-footer{max-width:640px;margin:0 auto;padding:24px 20px 40px;display:flex;justify-content:center;gap:20px;font-size:13.5px}.site-footer a{color:var(--text-2);text-decoration:none}.site-footer a:hover{color:var(--green);text-decoration:underline}.prose a{color:var(--green)}.spinner{display:inline-block;width:18px;height:18px;border:2px solid var(--border);border-top-color:var(--green);border-radius:50%;animation:spin .8s linear infinite;vertical-align:-3px;margin-right:10px}@keyframes spin{to{transform:rotate(1turn)}}