:root{--night:#071525;--night2:#0d2338;--ink:#102333;--paper:#f6f2e9;--cream:#fffaf0;--amber:#ffb54a;--amber2:#ffdca1;--coral:#e66f50;--muted:#61707a;--line:#cfd5d2;--radius:22px}
*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:var(--paper);color:var(--ink);font-family:"Hiragino Kaku Gothic ProN","Yu Gothic",system-ui,sans-serif;line-height:1.65}button,input{font:inherit}button{min-height:44px}.masthead{height:72px;padding:0 clamp(20px,5vw,72px);display:flex;align-items:center;justify-content:space-between;background:var(--night);color:#fff}.brand{display:flex;gap:10px;align-items:center;color:inherit;text-decoration:none;font-weight:700;letter-spacing:.08em}.brand-mark{display:grid;place-items:center;width:34px;height:34px;border:1px solid #ffffff55;border-radius:50%;color:var(--amber);font-size:24px}.header-link{color:var(--amber2);text-underline-offset:5px;font-size:14px}
.intro{background:var(--night);color:#fff;display:grid;grid-template-columns:minmax(340px,.8fr) minmax(460px,1.2fr);min-height:560px}.intro-copy{padding:clamp(54px,7vw,96px) clamp(28px,6vw,90px);align-self:center}.eyebrow,.section-no{font-size:12px;font-weight:800;letter-spacing:.18em;color:var(--coral);text-transform:uppercase}.intro h1{font-family:"Hiragino Mincho ProN","Yu Mincho",serif;font-size:clamp(38px,5vw,68px);line-height:1.22;letter-spacing:.02em;margin:16px 0 24px}.intro h1 em{font-style:normal;color:var(--amber2)}.lead{max-width:640px;color:#d8e0e5}.formula{display:flex;flex-wrap:wrap;gap:7px;margin-top:30px}.formula span,.formula b{font-size:12px;padding:7px 10px;border-radius:99px;background:#fff1;color:#f6f4ed}.formula b{background:transparent;color:#94a5b2}.hero-art{position:relative;margin:0;overflow:hidden;min-height:420px}.hero-art:after{content:"";position:absolute;inset:0;background:linear-gradient(90deg,var(--night),transparent 38%),linear-gradient(0deg,#071525b8,transparent 40%)}.hero-art img{width:100%;height:100%;object-fit:cover}.hero-art figcaption{position:absolute;z-index:1;right:36px;bottom:24px;color:#fff;font-size:12px}.hero-art figcaption span{display:inline-block;width:28px;height:1px;background:var(--amber);vertical-align:middle;margin-right:8px}
.workspace,.results,.guide{max-width:1180px;margin:0 auto;padding:72px 28px}.workspace-head,.results-head{display:flex;justify-content:space-between;gap:24px;align-items:end;margin-bottom:30px}h2{font-family:"Hiragino Mincho ProN","Yu Mincho",serif;font-size:clamp(30px,4vw,46px);line-height:1.25;margin:5px 0}h3{line-height:1.35}.rate-field{background:var(--cream);padding:14px 18px;border:1px solid var(--line);border-radius:14px;font-size:13px;font-weight:700}.rate-field span{display:block;white-space:nowrap}.rate-field input{width:100px;border:0;border-bottom:2px solid var(--ink);background:transparent;text-align:right;font-size:22px;font-weight:800}.rate-field small{display:block;color:var(--muted);font-weight:400}
.scenario-list{display:grid;gap:18px}.scenario-card{position:relative;margin:0;padding:22px;border:1px solid var(--line);border-radius:var(--radius);background:#fff;box-shadow:0 12px 35px #1023330a}.scenario-card legend{padding:0 8px;font-size:13px;font-weight:800}.scenario-index{color:var(--coral);margin-right:8px}.remove{position:absolute;right:18px;top:12px;border:0;background:transparent;color:var(--muted);text-decoration:underline}.remove:disabled{display:none}.fields{display:grid;grid-template-columns:2fr repeat(4,1fr);gap:12px}.field{font-size:12px;font-weight:700;color:var(--muted)}.input-wrap{display:flex;align-items:center;margin-top:5px;background:var(--paper);border:1px solid transparent;border-radius:10px;padding:0 10px}.input-wrap:focus-within{border-color:var(--coral);box-shadow:0 0 0 3px #e66f5022}.field input{min-width:0;width:100%;height:48px;border:0;outline:0;background:transparent;font-size:16px;color:var(--ink)}.field b{font-size:12px}.field-error{display:block;color:#a93020;min-height:1.2em}.field input[aria-invalid=true],#rate[aria-invalid=true]{border-bottom-color:#a93020}.error-summary{background:#fff0ec;border-left:5px solid #a93020;padding:15px 18px;margin:0 0 20px;border-radius:8px}.editor-actions{display:flex;align-items:center;gap:18px;margin-top:18px}.button{border-radius:99px;padding:10px 20px;border:1px solid var(--ink);font-weight:800;cursor:pointer}.button:disabled{opacity:.45;cursor:not-allowed}.secondary{background:transparent;color:var(--ink)}.primary{width:100%;margin-top:28px;padding:18px 28px;border:0;background:var(--coral);color:#fff;display:flex;justify-content:space-between;font-size:17px}.primary:hover{background:#c9573a}.text-button{margin-left:auto;border:0;background:transparent;text-decoration:underline;color:var(--muted)}
.results{max-width:none;background:#e9ece8;padding-left:max(28px,calc((100vw - 1124px)/2));padding-right:max(28px,calc((100vw - 1124px)/2))}.results-head p{margin:4px 0;color:var(--muted)}.result-actions{display:flex;gap:10px}.result-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(260px,1fr));gap:16px}.result-card{background:var(--cream);border-radius:var(--radius);padding:24px;overflow:hidden}.result-title{display:flex;gap:10px;align-items:start}.result-title span{color:var(--coral);font-size:12px}.result-title h3{margin:0}.main-cost{margin:28px 0 16px}.main-cost small,.main-cost span{display:block;color:var(--muted)}.main-cost strong{font-size:clamp(34px,4vw,50px);line-height:1.1}.main-cost strong b{font-size:.5em;margin-right:3px}.bar-track{height:8px;background:#d9ded8;border-radius:99px;overflow:hidden}.bar-track span{display:block;height:100%;border-radius:inherit;background:linear-gradient(90deg,var(--amber),var(--coral))}.result-card dl{margin:20px 0 0}.result-card dl div{display:flex;justify-content:space-between;border-top:1px solid var(--line);padding:10px 0}.result-card dd{margin:0}.result-card dd b{display:inline-block;margin-left:8px}.result-card>p{font-size:12px;color:var(--muted)}
.guide-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:28px;margin-top:32px}.guide article{border-top:1px solid var(--ink);padding-top:14px}.guide article>span{color:var(--coral);font-size:12px}.guide article p{color:var(--muted);font-size:14px}footer{background:var(--night2);color:#d5dde1;padding:52px max(28px,calc((100vw - 1124px)/2));display:grid;grid-template-columns:1fr 1fr;gap:30px;font-size:13px}footer h2{font-family:inherit;font-size:14px;margin:0}footer p{max-width:500px;color:#9fafb8}footer small{grid-column:1/-1;border-top:1px solid #ffffff22;padding-top:20px}.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}:focus-visible{outline:3px solid var(--amber);outline-offset:3px}
.guide-more{margin-top:32px;padding:22px 24px;background:var(--cream);border-radius:var(--radius)}.guide-more p{margin:0 0 10px;font-weight:700}.guide-more ul{margin:0;padding-left:1.4em}.guide-more li+li{margin-top:6px}.guide-more a{text-underline-offset:4px}
@media(max-width:800px){.intro{grid-template-columns:1fr}.intro-copy{padding-bottom:36px}.hero-art{min-height:270px}.hero-art:after{background:linear-gradient(0deg,var(--night),transparent 45%)}.workspace,.results,.guide{padding:54px 20px}.workspace-head,.results-head{align-items:stretch;flex-direction:column}.rate-field{width:100%}.fields{grid-template-columns:1fr 1fr}.field.wide{grid-column:1/-1}.guide-grid{grid-template-columns:1fr}.result-actions{width:100%}.result-actions .button{flex:1}footer{grid-template-columns:1fr}.hero-art figcaption{right:20px}}
@media(max-width:390px){.masthead{height:64px;padding:0 16px}.header-link{font-size:12px}.intro-copy{padding:44px 20px 28px}.intro h1{font-size:36px}.hero-art{min-height:220px}.workspace,.results,.guide{padding-left:16px;padding-right:16px}.scenario-card{padding:18px 14px}.fields{grid-template-columns:1fr}.field.wide{grid-column:auto}.editor-actions{gap:8px;flex-wrap:wrap}.editor-actions .text-button{margin-left:0}.result-actions{flex-direction:column}.guide h2{font-size:30px}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*,*:before,*:after{animation-duration:.01ms!important;transition-duration:.01ms!important}}
@media print{.masthead,.intro,.workspace,.result-actions,.guide,footer{display:none!important}.results{padding:0;background:#fff}.results[hidden]{display:none}.result-card{break-inside:avoid;border:1px solid #aaa}}


/* SOU100 Stage A: first-view hierarchy */
.stage-a-hero { min-width: 0; min-height: 0 !important; height: auto; grid-template-columns: minmax(0, 1.15fr) minmax(200px, .85fr); align-items: center; gap: clamp(1rem, 2.5vw, 2.5rem); padding-block: clamp(1.25rem, 3vw, 2.5rem) !important; }
.stage-a-hero .hero-copy, .stage-a-hero .intro-copy { min-width: 0; min-height: 0 !important; padding: clamp(1rem, 2.7vw, 2.25rem) !important; }
.stage-a-hero h1 { max-width: none !important; margin: 0 0 .75rem !important; font-size: clamp(2rem, 4vw, 3.35rem) !important; line-height: 1.14 !important; letter-spacing: -.035em; word-break: auto-phrase; }
.stage-a-lede { max-width: 52rem; margin: .25rem 0 0 !important; color: inherit; font-size: clamp(1rem, 1.25vw, 1.15rem) !important; line-height: 1.55 !important; }
.stage-a-steps { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: .45rem 1rem; margin: .8rem 0 0; padding-left: 1.35rem; font-size: .92rem; line-height: 1.45; }
.stage-a-steps li { min-width: 0; padding-left: .12rem; }
.stage-a-extras { margin-top: .7rem; font-size: .8rem; }
.stage-a-extras > * { margin-top: .35rem !important; margin-bottom: 0 !important; }
.stage-a-cta { display: inline-flex; min-height: 48px; align-items: center; justify-content: center; margin-top: .9rem; padding: .7rem 1.1rem; border: 2px solid #fff; border-radius: 999px; background: #17412f; color: #fff !important; font-weight: 800; line-height: 1.25; text-align: center; text-decoration: none; }
.stage-a-cta:hover { background: #0f3324; color: #fff !important; }
.stage-a-cta:focus-visible { outline: 3px solid #005fcc; outline-offset: 3px; box-shadow: 0 0 0 6px #fff; }
.stage-a-hero :is(.hero-visual, .hero-art, .hero-image) { width: 100%; min-width: 0; min-height: 0 !important; height: min(24vw, 280px); max-height: 280px; margin: 0; align-self: center; }
.stage-a-hero :is(.hero-visual, .hero-art, .hero-image) img { display: block; width: 100%; height: 100%; max-height: 280px; object-fit: cover; }

@media (max-width: 640px) {
  .stage-a-hero { display: block; min-height: 0 !important; height: auto !important; padding: 0 !important; }
  .stage-a-hero .hero-copy, .stage-a-hero .intro-copy { min-height: 0 !important; padding: 1.1rem 1rem 1.2rem !important; }
  .stage-a-hero h1 { margin-bottom: .55rem !important; font-size: clamp(1.8rem, 8vw, 2.35rem) !important; line-height: 1.18 !important; }
  .stage-a-lede { font-size: .94rem !important; line-height: 1.5 !important; }
  .stage-a-steps { grid-template-columns: 1fr; gap: .12rem; margin-top: .55rem; font-size: .87rem; }
  .stage-a-extras { margin-top: .55rem; font-size: .74rem; }
  .stage-a-cta { min-height: 46px; margin-top: .7rem; padding: .62rem 1rem; }
  .stage-a-hero :is(.hero-visual, .hero-art, .hero-image) { display: none !important; }
  .workspace .workspace-head { gap: .45rem !important; margin-bottom: .8rem !important; }
  .workspace .workspace-head h2 { margin: 0 !important; font-size: clamp(1.2rem, 5.5vw, 1.55rem) !important; line-height: 1.25 !important; letter-spacing: 0 !important; }
  .workspace .workspace-head p { margin: .35rem 0 0 !important; font-size: .86rem !important; line-height: 1.45 !important; }
  .workspace { padding-top: 1.2rem !important; }
  .workspace-head { gap: .7rem !important; margin-bottom: 1rem !important; }
}