:root {
  --ink: #112a26;
  --ink-soft: #36534d;
  --forest: #0e3f36;
  --forest-deep: #092f29;
  --mint: #bdf4c8;
  --mint-bright: #85eba5;
  --cream: #f5f2e9;
  --paper: #fffdf7;
  --line: #d9dfd8;
  --warning: #e67842;
  --shadow: 0 24px 70px rgba(10, 47, 40, .14);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; background: var(--paper); color: var(--ink); font-family: "Noto Sans JP", sans-serif; line-height: 1.75; }
a { color: inherit; text-decoration: none; }
button, input, select, textarea { font: inherit; }
.section-shell { width: min(1180px, calc(100% - 48px)); margin-inline: auto; }

.site-header { width: min(1280px, calc(100% - 40px)); height: 78px; margin: 0 auto; display: flex; align-items: center; justify-content: space-between; border-bottom: 1px solid rgba(17,42,38,.09); }
.brand { display: inline-flex; align-items: center; gap: 11px; font-weight: 700; letter-spacing: .02em; }
.brand small { margin-left: 3px; color: var(--ink-soft); font-size: 10px; }
.brand-mark { width: 34px; height: 34px; display: grid; place-items: center; border-radius: 9px; background: var(--forest); color: var(--mint); font-size: 15px; }
nav { display: flex; align-items: center; gap: 30px; font-size: 13px; font-weight: 600; }
nav a:not(.nav-cta):hover { color: #23735f; }
.nav-cta { padding: 10px 18px; border-radius: 999px; background: var(--ink); color: white; }

.hero { min-height: 750px; display: grid; grid-template-columns: .9fr 1.1fr; gap: 54px; align-items: center; padding-block: 90px 112px; }
.eyebrow { display: flex; align-items: center; gap: 10px; margin: 0 0 20px; color: #347a66; font-family: "DM Sans", sans-serif; font-size: 12px; font-weight: 700; letter-spacing: .12em; text-transform: uppercase; }
.eyebrow span { width: 24px; height: 2px; background: currentColor; }
.eyebrow.light { color: var(--mint); }
h1, h2, h3, p { margin-top: 0; }
h1, h2 { letter-spacing: -.04em; line-height: 1.35; }
h1 { margin-bottom: 26px; font-size: clamp(42px, 5vw, 66px); }
h1 em { color: #267c64; font-style: normal; }
h2 { margin-bottom: 22px; font-size: clamp(32px, 4vw, 52px); }
.hero-lead { max-width: 620px; margin-bottom: 34px; color: var(--ink-soft); font-size: 17px; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 12px; }
.button { min-height: 52px; padding: 13px 22px; display: inline-flex; align-items: center; justify-content: center; gap: 22px; border: 0; border-radius: 8px; font-weight: 700; cursor: pointer; transition: transform .2s, box-shadow .2s, background .2s; }
.button:hover { transform: translateY(-2px); }
.button-primary { background: var(--forest); color: #fff; box-shadow: 0 12px 30px rgba(14,63,54,.18); }
.button-primary:hover { background: var(--forest-deep); }
.button-ghost { border: 1px solid var(--line); background: transparent; }
.microcopy { margin: 18px 0 0; color: #6b7b76; font-size: 12px; }

.hero-visual { position: relative; overflow: hidden; padding: 18px; border: 1px solid rgba(14,63,54,.12); border-radius: 18px; background: #f7faf7; box-shadow: var(--shadow); transform: rotate(1.2deg); }
.hero-visual::before { content: ""; position: absolute; inset: -60% 25% auto -25%; height: 480px; border-radius: 50%; background: radial-gradient(circle, rgba(133,235,165,.24), transparent 66%); }
.visual-topbar { position: relative; display: grid; grid-template-columns: 1fr auto 1fr; align-items: center; padding: 2px 2px 15px; color: #6a7c76; font-size: 11px; }
.traffic-lights { display: flex; gap: 5px; }
.traffic-lights i { width: 7px; height: 7px; border-radius: 50%; background: #cbd5d0; }
.live-pill { justify-self: end; padding: 4px 8px; border-radius: 99px; background: #e2f6e7; color: #297458; }
.live-pill i { display: inline-block; width: 6px; height: 6px; border-radius: 50%; background: #49c47d; }
.metric-row { position: relative; display: grid; grid-template-columns: repeat(3, 1fr); gap: 9px; }
.metric-row > div { padding: 16px; border: 1px solid #e2e9e4; border-radius: 10px; background: rgba(255,255,255,.9); }
.metric-row span, .metric-row b { display: block; color: #6f817b; font-size: 9px; font-weight: 600; }
.metric-row strong { display: block; margin: 5px 0 6px; font-family: "DM Sans", sans-serif; font-size: 27px; line-height: 1; }
.metric-row strong small { margin-left: 2px; font-size: 12px; }
.metric-row b { color: #30805f; }
.metric-row b.neutral { color: #6f817b; }
.metric-row b.alert { color: var(--warning); }
.chart-card { position: relative; margin-top: 10px; padding: 19px; border: 1px solid #e2e9e4; border-radius: 11px; background: white; }
.chart-heading { display: flex; justify-content: space-between; align-items: center; margin-bottom: 20px; font-size: 11px; font-weight: 700; }
.chart-heading small { color: #82918c; font-size: 8px; font-weight: 500; }
.bar-list { display: grid; gap: 15px; }
.bar-item { display: grid; grid-template-columns: 124px 1fr 38px; gap: 9px; align-items: center; font-size: 9px; }
.bar-item > div { overflow: hidden; height: 8px; border-radius: 99px; background: #eaf0ec; }
.bar-item i { display: block; width: var(--w); height: 100%; border-radius: inherit; background: linear-gradient(90deg, #2f8068, #80dda0); }
.bar-item.risk i { background: linear-gradient(90deg, #d6673b, #f2ad72); }
.bar-item b { font-family: "DM Sans", sans-serif; text-align: right; }
.insight { margin-top: 19px; padding: 11px; display: flex; gap: 10px; border-radius: 8px; background: #fff2e8; color: #814325; font-size: 8px; line-height: 1.6; }
.insight > span { flex: 0 0 auto; width: 20px; height: 20px; display: grid; place-items: center; border-radius: 50%; background: #ed8655; color: #fff; font-weight: 700; }
.insight p { margin: 0; }

.problem-band { padding: 105px 0; background: var(--forest-deep); color: #fff; }
.problem-grid { display: grid; grid-template-columns: .85fr 1.15fr; gap: 110px; }
.problem-list { display: grid; gap: 0; }
.problem-list article { display: grid; grid-template-columns: 48px 1fr; gap: 22px; padding: 27px 0; border-top: 1px solid rgba(255,255,255,.15); }
.problem-list article:last-child { border-bottom: 1px solid rgba(255,255,255,.15); }
.problem-list article > span { color: var(--mint); font-family: "DM Sans", sans-serif; font-size: 12px; }
.problem-list h3 { margin-bottom: 7px; font-size: 18px; }
.problem-list p { margin: 0; color: rgba(255,255,255,.68); font-size: 14px; }

.how { padding-block: 130px; }
.section-heading { max-width: 690px; margin-bottom: 60px; }
.section-heading > p:last-child { color: var(--ink-soft); }
.section-heading.compact { margin-bottom: 0; }
.steps { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
.steps article { min-height: 310px; padding: 30px; border: 1px solid var(--line); border-radius: 12px; background: #fff; }
.step-icon { width: 52px; height: 52px; margin-bottom: 54px; display: grid; place-items: center; border-radius: 50%; background: var(--cream); color: #2c765f; font-family: "DM Sans", sans-serif; font-weight: 700; }
.steps h3 { margin-bottom: 12px; font-size: 21px; }
.steps p { color: var(--ink-soft); font-size: 14px; }
.steps small { color: #39866d; font-size: 11px; font-weight: 600; }

.decision { padding-bottom: 130px; }
.decision-card { padding: 72px; border-radius: 18px; background: var(--forest); color: #fff; }
.decision-card > h2 { max-width: 680px; }
.decision-points { display: grid; grid-template-columns: repeat(4, 1fr); margin-top: 55px; border-top: 1px solid rgba(255,255,255,.15); }
.decision-points div { padding: 26px 24px 0 0; }
.decision-points div + div { padding-left: 24px; border-left: 1px solid rgba(255,255,255,.15); }
.decision-points b { color: var(--mint); font-size: 17px; }
.decision-points p { margin: 9px 0 0; color: rgba(255,255,255,.67); font-size: 13px; }

.security { display: grid; grid-template-columns: .8fr 1.2fr; gap: 110px; padding-block: 120px; border-top: 1px solid var(--line); }
.security-content > p { color: var(--ink-soft); }
.security-content ul { padding: 0; margin: 30px 0 0; list-style: none; }
.security-content li { padding: 15px 0; border-top: 1px solid var(--line); font-size: 14px; }
.security-content li:last-child { border-bottom: 1px solid var(--line); }
.security-content li span { margin-right: 10px; color: #278264; font-weight: 700; }

.poc { padding-block: 120px; }
.poc-grid { display: grid; grid-template-columns: .85fr 1.15fr; gap: 80px; align-items: start; }
.poc-summary { display: grid; grid-template-columns: repeat(3, 1fr); border: 1px solid var(--line); border-radius: 12px; background: var(--cream); }
.poc-summary div { padding: 24px 18px; }
.poc-summary div + div { border-left: 1px solid #d6d8cd; }
.poc-summary span, .poc-summary strong { display: block; }
.poc-summary span { margin-bottom: 7px; color: #74817c; font-size: 11px; }
.poc-summary strong { font-size: 17px; }
.poc ol { padding: 0; margin: 0; list-style: none; }
.poc li { display: grid; grid-template-columns: 44px 1fr; gap: 18px; padding: 21px 0; border-top: 1px solid var(--line); }
.poc li:last-child { border-bottom: 1px solid var(--line); }
.poc li > span { width: 35px; height: 35px; display: grid; place-items: center; border-radius: 50%; background: #e2f6e7; color: #25775c; font-family: "DM Sans", sans-serif; font-weight: 700; }
.poc li p { margin: 4px 0 0; color: var(--ink-soft); font-size: 13px; }

.contact { padding-block: 110px; background: var(--forest-deep); color: #fff; }
.contact-grid { display: grid; grid-template-columns: .85fr 1.15fr; gap: 100px; }
.contact-grid > div > p:not(.eyebrow) { color: rgba(255,255,255,.67); }
.contact-note { margin-top: 40px; display: flex; gap: 16px; align-items: center; }
.contact-note > span { width: 52px; height: 52px; display: grid; place-items: center; border: 1px solid rgba(189,244,200,.4); border-radius: 50%; color: var(--mint); font-family: "DM Sans", sans-serif; font-size: 18px; font-weight: 700; }
.contact-note p { margin: 0; color: rgba(255,255,255,.68); font-size: 13px; }
.contact-note b { color: #fff; }
form { padding: 34px; border-radius: 14px; background: #fff; color: var(--ink); }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 13px; }
form label { display: block; margin-bottom: 15px; font-size: 12px; font-weight: 600; }
form label > span { margin-left: 4px; color: #d55c3a; font-size: 9px; }
input, select, textarea { width: 100%; margin-top: 7px; padding: 12px 13px; border: 1px solid #d8dfda; border-radius: 6px; outline: none; background: #fafcf9; color: var(--ink); font-size: 13px; }
input:focus, select:focus, textarea:focus { border-color: #3b896f; box-shadow: 0 0 0 3px rgba(59,137,111,.1); }
textarea { min-height: 100px; resize: vertical; }
.consent { display: flex; gap: 9px; align-items: flex-start; font-weight: 400; }
.consent input { width: 16px; margin: 3px 0 0; }
.consent span { margin: 0; color: #526761; font-size: 11px; }
.honeypot { position: absolute !important; left: -9999px !important; }
.button-light { width: 100%; background: var(--forest); color: #fff; }
.button-light:disabled { cursor: wait; opacity: .62; }
.form-status { min-height: 1.5em; margin: 12px 0 0; color: #267b5f; font-size: 12px; text-align: center; }
.form-status.error { color: #c45336; }

footer { min-height: 110px; padding: 28px max(24px, calc((100% - 1180px) / 2)); display: flex; align-items: center; justify-content: space-between; border-top: 1px solid var(--line); }
footer p { margin: 0; color: #73817c; font-size: 11px; }

@media (max-width: 900px) {
  .hero, .problem-grid, .security, .poc-grid, .contact-grid { grid-template-columns: 1fr; }
  .hero { padding-top: 70px; }
  .problem-grid, .security, .poc-grid, .contact-grid { gap: 48px; }
  .steps { grid-template-columns: 1fr; }
  .steps article { min-height: 0; }
  .step-icon { margin-bottom: 30px; }
  .decision-points { grid-template-columns: 1fr 1fr; }
  .decision-points div:nth-child(3) { padding-left: 0; border-left: 0; }
}

@media (max-width: 620px) {
  .section-shell { width: min(100% - 32px, 1180px); }
  .site-header { width: calc(100% - 28px); }
  nav > a:not(.nav-cta) { display: none; }
  .nav-cta { padding: 9px 13px; }
  h1 { font-size: 39px; }
  h2 { font-size: 32px; }
  .hero { min-height: 0; padding-block: 64px 84px; }
  .hero-actions, .hero-actions .button { width: 100%; }
  .hero-visual { padding: 10px; transform: none; }
  .metric-row { grid-template-columns: 1fr 1fr; }
  .metric-row > div:last-child { grid-column: 1 / -1; }
  .bar-item { grid-template-columns: 100px 1fr 35px; }
  .problem-band, .how, .security, .poc, .contact { padding-block: 80px; }
  .decision { padding-bottom: 80px; }
  .decision-card { padding: 38px 24px; }
  .decision-points { grid-template-columns: 1fr; }
  .decision-points div + div { padding-left: 0; border-left: 0; }
  .poc-summary { grid-template-columns: 1fr; }
  .poc-summary div + div { border-top: 1px solid #d6d8cd; border-left: 0; }
  .form-row { grid-template-columns: 1fr; }
  form { padding: 24px 18px; }
  footer { gap: 20px; flex-direction: column; justify-content: center; }
}