/* Internet Cost Japan — shared styles. System fonts only (no web-font fetch). */
:root{
  --bg:#f7f9fc; --text:#1e2530; --muted:#636b78; --accent:#2563a8; --accent-dark:#1c4d86;
  --accent-light:#e6eef9; --card:#ffffff; --border:#e2e7ef; --blue:#2b5fa8; --teal:#127a6e;
  --red:#b5493a; --green:#2b7a52; --maxw:760px;
}
*{margin:0;padding:0;box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{font-family:'Segoe UI',-apple-system,BlinkMacSystemFont,Roboto,Helvetica,Arial,sans-serif;
  background:var(--bg);color:var(--text);line-height:1.6;-webkit-font-smoothing:antialiased}
.container{max-width:var(--maxw);margin:0 auto;padding:0 20px}
a{color:var(--accent)}

.aff-disclosure-bar{background:#eef2f8;padding:8px 20px;font-size:12px;color:#636b78;text-align:center;border-bottom:1px solid var(--border)}
.aff-disclosure-bar a{color:var(--accent);margin-left:4px}
.aff-footer-jp{margin-top:6px;font-size:11px;color:#98a0ac}
.aff-cta{font-weight:600;white-space:nowrap}

nav.site{padding:12px 20px;border-bottom:1px solid var(--border);font-size:14px;background:var(--card)}
nav.site .inner{max-width:var(--maxw);margin:0 auto;display:flex;align-items:center;justify-content:space-between;gap:12px}
nav.site a.brand{color:var(--text);text-decoration:none;font-weight:700}
nav.site .links a{color:var(--muted);text-decoration:none;margin-left:14px}
nav.site .links a:hover{color:var(--accent)}

header.hero{padding:44px 0 28px;text-align:center;border-bottom:1px solid var(--border)}
header.hero h1{font-size:27px;font-weight:800;letter-spacing:-.5px;margin-bottom:8px}
header.hero p{color:var(--muted);font-size:15px;max-width:540px;margin:0 auto}

h2{font-size:20px;font-weight:700;margin:26px 0 12px}
h3{font-size:16px;font-weight:700;margin:18px 0 8px}
p{margin-bottom:12px}
.jp{font-style:normal;color:var(--muted)}
.muted{color:var(--muted)}
.small{font-size:13px}

.calc{padding:26px 0}
.field{margin-bottom:18px}
.field>label{display:block;font-size:12px;font-weight:700;text-transform:uppercase;letter-spacing:.5px;color:var(--muted);margin-bottom:8px}
.opts{display:flex;gap:8px;flex-wrap:wrap}
.opt{padding:9px 14px;border:2px solid var(--border);border-radius:8px;cursor:pointer;font-size:13px;background:var(--card);transition:.15s;font-weight:500}
.opt:hover{border-color:var(--accent)}
.opt.active{border-color:var(--accent);background:var(--accent-light);color:var(--accent-dark)}
.opt.sm{padding:6px 11px;font-size:12px}
.opt.wide{flex:1 1 100%;text-align:left}
.opt.wide .lbl{font-weight:700}
.opt.wide .desc{display:block;font-size:12px;color:var(--muted);font-weight:400;margin-top:2px}
.opt.wide.active .desc{color:var(--accent-dark)}
.row{display:flex;align-items:center;gap:12px;flex-wrap:wrap}
.row input[type=number]{width:150px;padding:9px 10px;border:2px solid var(--border);border-radius:8px;font-size:15px}
.num-inline{width:120px;padding:8px 9px;border:2px solid var(--border);border-radius:8px;font-size:14px}
.hidden{display:none}
.note{background:var(--accent-light);border-left:3px solid var(--accent);border-radius:8px;padding:10px 12px;margin:10px 0;font-size:13px}
.note.info{background:#eaf1fa;border-left-color:var(--blue)}
.note.warn{background:#fbeeeb;border-left-color:var(--red)}
.btn{display:block;width:100%;padding:14px;border:none;border-radius:9px;background:var(--accent);color:#fff;font-size:16px;font-weight:700;cursor:pointer;transition:.15s;margin-top:8px}
.btn:hover{background:var(--accent-dark)}

.results{display:none;padding:8px 0 26px}
.results.show{display:block}
.rec-banner{background:var(--text);color:#fff;border-radius:12px;padding:22px 24px;margin-bottom:18px}
.rec-banner .k{font-size:12px;text-transform:uppercase;letter-spacing:.5px;opacity:.7}
.rec-banner .v{font-size:22px;font-weight:800;letter-spacing:-.4px;margin:4px 0 6px}
.rec-banner .why{font-size:14px;opacity:.85}
.pathbox{background:var(--card);border:1px solid var(--border);border-radius:12px;padding:18px 20px;margin-top:16px}
.pathbox h3{margin-top:0;display:flex;align-items:center;gap:8px}
.tag{display:inline-block;font-size:11px;font-weight:700;text-transform:uppercase;letter-spacing:.4px;padding:2px 8px;border-radius:20px;vertical-align:middle}
.tag.viable{background:#e4f2ea;color:var(--green)}
.tag.limited{background:#fdf1e5;color:#a5670f}
.tag.no{background:#fbeeeb;color:var(--red)}
table.items{width:100%;border-collapse:collapse;font-size:13.5px;margin:6px 0 8px}
table.items th,table.items td{text-align:left;padding:9px 6px;border-bottom:1px solid var(--border);vertical-align:top}
table.items th{font-size:11px;text-transform:uppercase;letter-spacing:.4px;color:var(--muted)}
table.items td.amt{text-align:right;font-weight:700;white-space:nowrap}
.aff-line{margin:6px 0 2px;font-size:13px}
.share{display:flex;gap:8px;align-items:center;margin-top:16px;flex-wrap:wrap}
.share input{flex:1;min-width:200px;padding:9px 10px;border:2px solid var(--border);border-radius:8px;font-size:13px;color:var(--muted)}
.share button{padding:9px 14px;border:none;border-radius:8px;background:var(--accent);color:#fff;font-weight:600;cursor:pointer}

article{padding:28px 0;font-size:16px}
article p{margin-bottom:14px}
article ul,article ol{margin:0 0 14px 22px}
article li{margin-bottom:7px}
article table{width:100%;border-collapse:collapse;font-size:14px;margin:0 0 16px}
article th,article td{border:1px solid var(--border);padding:7px 9px;text-align:left}
article th{background:var(--accent-light)}
.callout{background:var(--accent-light);border-left:3px solid var(--accent);border-radius:8px;padding:14px 16px;margin:16px 0;font-size:14px}
.cta-calc{display:block;background:var(--accent);color:#fff;text-align:center;padding:14px;border-radius:10px;font-weight:700;text-decoration:none;margin:20px 0}
.cta-calc:hover{background:var(--accent-dark)}
.related{padding:22px 0;border-top:1px solid var(--border)}
.related a{font-weight:600;text-decoration:none}

.faq-item{border-bottom:1px solid var(--border);padding:16px 0}
.faq-item h3{margin:0 0 6px}

footer{padding:26px 0;border-top:1px solid var(--border);text-align:center;font-size:12px;color:var(--muted)}
footer p{margin-bottom:4px}

@media (max-width:480px){
  header.hero h1{font-size:22px}
  .rec-banner .v{font-size:19px}
  nav.site .links a{margin-left:10px}
  table.items{font-size:12.5px}
}