/* TXMX Automotive — site styles */
:root{
  color-scheme: light;
  --plane:#f9f9f7;
  --surface:#fcfcfb;
  --surface-2:#f2f1ed;
  --ink:#0b0b0b;
  --ink-2:#52514e;
  --muted:#898781;
  --line:#e1e0d9;
  --rule:#c3c2b7;
  --brand:#184f95;
  --brand-ink:#0d366b;
  --accent:#c2400f;
  --accent-mark:#eb6834;
  --s1:#2a78d6; --s2:#eb6834; --s3:#1baf7a; --s4:#eda100;
  --grid:#e1e0d9;
  --shadow:0 1px 2px rgba(11,11,11,.05), 0 8px 24px -16px rgba(11,11,11,.18);
  --maxw:1180px;
  --sans: system-ui, -apple-system, "Segoe UI", "Helvetica Neue", Arial, "Hiragino Kaku Gothic ProN", "Noto Sans JP", sans-serif;
}
@media (prefers-color-scheme: dark){
  :root:not([data-theme="light"]){
    color-scheme: dark;
    --plane:#0d0d0d; --surface:#1a1a19; --surface-2:#212120;
    --ink:#ffffff; --ink-2:#c3c2b7; --muted:#898781;
    --line:#2c2c2a; --rule:#383835;
    --brand:#6da7ec; --brand-ink:#9ec5f4; --accent:#eb6834; --accent-mark:#eb6834;
    --s1:#3987e5; --s2:#d95926; --s3:#199e70; --s4:#c98500;
    --grid:#2c2c2a;
    --shadow:0 1px 2px rgba(0,0,0,.4), 0 8px 24px -16px rgba(0,0,0,.7);
  }
}
:root[data-theme="dark"]{
  color-scheme: dark;
  --plane:#0d0d0d; --surface:#1a1a19; --surface-2:#212120;
  --ink:#ffffff; --ink-2:#c3c2b7; --muted:#898781;
  --line:#2c2c2a; --rule:#383835;
  --brand:#6da7ec; --brand-ink:#9ec5f4; --accent:#eb6834; --accent-mark:#eb6834;
  --s1:#3987e5; --s2:#d95926; --s3:#199e70; --s4:#c98500;
  --grid:#2c2c2a;
  --shadow:0 1px 2px rgba(0,0,0,.4), 0 8px 24px -16px rgba(0,0,0,.7);
}

*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0; background:var(--plane); color:var(--ink);
  font-family:var(--sans); font-size:16.5px; line-height:1.6;
  -webkit-font-smoothing:antialiased;
}
html[lang="ja"] body{ line-height:1.85; letter-spacing:.01em }
a{color:inherit}
img,svg{max-width:100%}
.wrap{max-width:var(--maxw); margin:0 auto; padding:0 24px}
.rule{height:1px;background:var(--line);border:0;margin:0}

/* ---------- header ---------- */
.site-head{position:sticky;top:0;z-index:50;background:color-mix(in srgb, var(--plane) 88%, transparent);backdrop-filter:blur(10px);border-bottom:1px solid var(--line)}
.head-in{display:flex;align-items:center;gap:20px;height:68px}
.brand{display:flex;align-items:center;gap:11px;text-decoration:none;flex:0 0 auto}
.brand .wordmark{display:flex;flex-direction:column;line-height:1}
.brand .wm-1{font-weight:760;letter-spacing:.055em;font-size:17px}
.brand .wm-2{font-size:9.5px;letter-spacing:.24em;color:var(--muted);text-transform:uppercase;margin-top:3px}
nav.main{margin-left:auto;display:flex;align-items:center;gap:4px;flex-wrap:wrap}
nav.main a{
  text-decoration:none;font-size:14px;color:var(--ink-2);padding:8px 11px;border-radius:7px;
  transition:background .15s, color .15s;
}
nav.main a:hover{background:var(--surface-2);color:var(--ink)}
nav.main a[aria-current="page"]{color:var(--ink);font-weight:600}
.head-tools{display:flex;align-items:center;gap:6px;margin-left:10px;padding-left:14px;border-left:1px solid var(--line)}
.tbtn{
  font:inherit;font-size:12.5px;font-weight:600;letter-spacing:.02em;
  background:transparent;border:1px solid var(--rule);color:var(--ink-2);
  padding:5px 9px;border-radius:6px;cursor:pointer;line-height:1.2;
}
.tbtn:hover{border-color:var(--ink-2);color:var(--ink)}
.tbtn[aria-pressed="true"]{background:var(--ink);color:var(--plane);border-color:var(--ink)}
.navtoggle{display:none}

/* ---------- type ---------- */
h1,h2,h3,h4{line-height:1.15;letter-spacing:-.018em;margin:0 0 .5em}
h1{font-size:clamp(34px,5.4vw,58px);font-weight:750}
h2{font-size:clamp(24px,3.1vw,34px);font-weight:700}
h3{font-size:19px;font-weight:680;letter-spacing:-.01em}
html[lang="ja"] h1,html[lang="ja"] h2,html[lang="ja"] h3{letter-spacing:.005em;line-height:1.35}
.lede{font-size:clamp(17px,2vw,20.5px);color:var(--ink-2);line-height:1.6;max-width:62ch}
.eyebrow{font-size:11.5px;letter-spacing:.2em;text-transform:uppercase;color:var(--accent);font-weight:700;margin:0 0 14px}
html[lang="ja"] .eyebrow{letter-spacing:.12em}
.small{font-size:13.5px;color:var(--muted)}
p{margin:0 0 1.1em}
section{padding:72px 0}
section.tight{padding:48px 0}

/* ---------- hero ---------- */
.hero{padding:88px 0 64px;position:relative;overflow:hidden}
.hero-grid{display:grid;grid-template-columns:1.25fr .75fr;gap:56px;align-items:end}
.hero h1 .accent{color:var(--brand)}
.corridor-art{width:100%;height:auto;opacity:.95}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;align-items:center;gap:9px;text-decoration:none;
  font-size:14.5px;font-weight:620;padding:12px 20px;border-radius:8px;
  background:var(--ink);color:var(--plane);border:1px solid var(--ink);
  transition:transform .12s ease, opacity .15s;
}
.btn:hover{transform:translateY(-1px);opacity:.92}
.btn.ghost{background:transparent;color:var(--ink);border-color:var(--rule)}
.btn.ghost:hover{border-color:var(--ink)}
.btn-row{display:flex;gap:12px;flex-wrap:wrap;margin-top:28px}

/* ---------- stat strip ---------- */
.stats{display:grid;grid-template-columns:repeat(4,1fr);gap:1px;background:var(--line);border-block:1px solid var(--line)}
.stat{background:var(--plane);padding:26px 22px}
.stat .k{font-size:clamp(28px,3.6vw,40px);font-weight:720;letter-spacing:-.03em;line-height:1;color:var(--ink)}
.stat .l{font-size:13px;color:var(--ink-2);margin-top:9px;max-width:22ch}

/* ---------- cards ---------- */
.cards{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.card{
  background:var(--surface);border:1px solid var(--line);border-radius:12px;padding:26px 24px;
  display:flex;flex-direction:column;gap:10px;
}
.card .num{font-size:11.5px;letter-spacing:.16em;color:var(--muted);font-weight:700}
.card p{color:var(--ink-2);font-size:15px;margin:0}
.card ul{margin:6px 0 0;padding-left:18px;color:var(--ink-2);font-size:14.5px}
.card li{margin:5px 0}

/* ---------- panels / charts ---------- */
.panel{background:var(--surface);border:1px solid var(--line);border-radius:14px;padding:26px 26px 22px;box-shadow:var(--shadow)}
.panel-head{display:flex;justify-content:space-between;align-items:flex-start;gap:18px;flex-wrap:wrap;margin-bottom:6px}
.panel-head h3{margin:0}
.panel-sub{font-size:13.5px;color:var(--muted);margin:2px 0 20px}
.figure-note{font-size:12.5px;color:var(--muted);margin-top:16px;padding-top:12px;border-top:1px solid var(--line)}
.controls{display:flex;gap:8px;flex-wrap:wrap;align-items:center;margin-bottom:18px}
.seg{display:inline-flex;background:var(--surface-2);border:1px solid var(--line);border-radius:8px;padding:2px;gap:2px}
.seg button{
  font:inherit;font-size:13px;font-weight:600;border:0;background:transparent;color:var(--ink-2);
  padding:6px 13px;border-radius:6px;cursor:pointer;
}
.seg button[aria-pressed="true"]{background:var(--surface);color:var(--ink);box-shadow:0 1px 2px rgba(0,0,0,.08)}
.legend{display:flex;gap:16px;flex-wrap:wrap;font-size:13px;color:var(--ink-2);margin-top:14px}
.legend span{display:inline-flex;align-items:center;gap:7px}
.swatch{width:11px;height:11px;border-radius:3px;flex:0 0 auto}
.chart{width:100%;height:auto;display:block;overflow:visible}
.chart text{font-family:var(--sans)}
.tick{fill:var(--muted);font-size:12px}
.vlabel{fill:var(--ink);font-size:12.5px;font-weight:650;font-variant-numeric:tabular-nums}
.slabel{fill:var(--ink-2);font-size:12.5px}
.gridline{stroke:var(--grid);stroke-width:1}
.axis{stroke:var(--rule);stroke-width:1}
.mark{transition:opacity .12s}
.chart.dim .mark:not(.on){opacity:.35}
.tip{
  position:absolute;pointer-events:none;z-index:40;opacity:0;transform:translate(-50%,-112%);
  background:var(--surface);border:1px solid var(--rule);border-radius:9px;padding:9px 12px;
  font-size:13px;color:var(--ink);box-shadow:var(--shadow);min-width:130px;transition:opacity .1s;
}
.tip b{display:block;font-size:12px;color:var(--muted);font-weight:600;margin-bottom:4px}
.tip .row{display:flex;justify-content:space-between;gap:16px;font-variant-numeric:tabular-nums}
.chart-holder{position:relative}
table.data{width:100%;border-collapse:collapse;font-size:13.5px;margin-top:8px}
table.data th,table.data td{text-align:right;padding:7px 10px;border-bottom:1px solid var(--line);font-variant-numeric:tabular-nums}
table.data th:first-child,table.data td:first-child{text-align:left;font-variant-numeric:normal}
table.data th{color:var(--muted);font-weight:650;font-size:12px;letter-spacing:.04em;text-transform:uppercase}
details.table-view{margin-top:14px}
details.table-view summary{cursor:pointer;font-size:13px;color:var(--ink-2);font-weight:600}

/* ---------- opportunity matrix ---------- */
.opp-list{display:flex;flex-direction:column;gap:2px}
.opp{
  display:grid;grid-template-columns:200px 1fr;gap:20px;align-items:center;
  padding:14px 0;border-bottom:1px solid var(--line);cursor:pointer;background:none;border-top:0;border-left:0;border-right:0;
  text-align:left;font:inherit;color:inherit;width:100%;
}
.opp:hover{background:var(--surface-2)}
.opp[aria-expanded="true"]{background:var(--surface-2)}
.opp .name{font-weight:640;font-size:15px;display:flex;align-items:center;gap:9px}
.fitdot{width:9px;height:9px;border-radius:50%;flex:0 0 auto}
.fit-strong{background:#0ca30c}.fit-conditional{background:#fab219}.fit-gap{background:#d03b3b}
.bar-track{position:relative;height:24px}
.bar-span{position:absolute;height:9px;top:7px;border-radius:5px;background:var(--s1);opacity:.85}
.opp-detail{padding:2px 0 18px 220px;font-size:14.5px;color:var(--ink-2);border-bottom:1px solid var(--line)}
.opp-detail dl{display:grid;grid-template-columns:auto 1fr;gap:4px 16px;margin:10px 0 0;font-size:13.5px}
.opp-detail dt{color:var(--muted)}
.opp-detail dd{margin:0;font-variant-numeric:tabular-nums}

/* ---------- scenario ---------- */
.scenario{display:grid;grid-template-columns:1fr 1fr;gap:32px;align-items:center}
input[type=range]{width:100%;accent-color:var(--brand)}
.readout{font-size:clamp(32px,4.4vw,46px);font-weight:720;letter-spacing:-.03em;line-height:1.05}
.readout .u{font-size:16px;font-weight:600;color:var(--muted);letter-spacing:0}

/* ---------- article ---------- */
.article{max-width:none}
.article-grid{display:grid;grid-template-columns:1fr minmax(0,690px) 1fr;gap:0}
.article-grid > *{grid-column:2}
.article-grid > .bleed{grid-column:1 / -1}
.article h2{margin-top:2em}
.article p,.article li{font-size:17.5px;line-height:1.72;color:var(--ink-2)}
.article li{margin:.45em 0}
.article strong{color:var(--ink);font-weight:640}
.pull{border-left:3px solid var(--accent);padding:4px 0 4px 22px;margin:2em 0;font-size:19px;color:var(--ink);line-height:1.5}
.byline{display:flex;gap:14px;align-items:center;font-size:13.5px;color:var(--muted);margin-bottom:34px}
.fnote{font-size:14px;color:var(--muted);border-top:1px solid var(--line);padding-top:18px;margin-top:40px}

/* ---------- forms ---------- */
.field{display:flex;flex-direction:column;gap:6px;margin-bottom:16px}
.field label{font-size:13px;font-weight:620;color:var(--ink-2)}
.field input,.field textarea,.field select{
  font:inherit;font-size:15px;padding:11px 13px;border-radius:8px;border:1px solid var(--rule);
  background:var(--surface);color:var(--ink);
}
.field input:focus,.field textarea:focus,.field select:focus{outline:2px solid var(--brand);outline-offset:1px;border-color:transparent}

/* ---------- footer ---------- */
.site-foot{border-top:1px solid var(--line);background:var(--surface);padding:52px 0 40px;margin-top:40px}
.foot-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr;gap:36px}
.foot-grid h4{font-size:11.5px;letter-spacing:.16em;text-transform:uppercase;color:var(--muted);margin:0 0 12px}
.foot-grid a{display:block;text-decoration:none;color:var(--ink-2);font-size:14px;padding:4px 0}
.foot-grid a:hover{color:var(--ink)}
.disclaimer{margin-top:36px;padding-top:22px;border-top:1px solid var(--line);font-size:12.5px;color:var(--muted);max-width:75ch;line-height:1.65}

/* ---------- responsive ---------- */
@media (max-width:920px){
  .hero-grid{grid-template-columns:1fr;gap:34px}
  .cards{grid-template-columns:1fr}
  .stats{grid-template-columns:repeat(2,1fr)}
  .scenario{grid-template-columns:1fr;gap:20px}
  .foot-grid{grid-template-columns:1fr 1fr}
  .opp{grid-template-columns:150px 1fr;gap:12px}
  .opp-detail{padding-left:0}
  .article-grid{grid-template-columns:1fr;}
  .article-grid > *{grid-column:1}
}
@media (max-width:720px){
  section{padding:52px 0}
  .wrap{padding:0 16px}
  .navtoggle{display:inline-flex;margin-left:auto}
  nav.main{
    display:none;position:absolute;top:68px;left:0;right:0;background:var(--surface);
    border-bottom:1px solid var(--line);padding:10px 16px 16px;flex-direction:column;align-items:stretch;gap:2px;
  }
  nav.main.open{display:flex}
  nav.main a{padding:11px 8px;font-size:15px}
  .head-tools{margin-left:8px}
  .panel{padding:20px 16px 18px}
}
@media (prefers-reduced-motion:reduce){*{transition:none!important;animation:none!important}}

/* opportunity log-scale axis, aligned to the bar column */
.opp-scale{display:grid;grid-template-columns:200px 1fr;gap:20px;margin-top:10px}
.opp-scale-track{position:relative;display:block;height:18px;font-size:12px;color:var(--muted);font-variant-numeric:tabular-nums}
@media (max-width:920px){.opp-scale{grid-template-columns:150px 1fr;gap:12px}}