/* IsauLab (イサウラボ) — site styles. No framework, mobile-first. */
@font-face{font-family:"Poppins";src:url(/assets/fonts/poppins-semibold.woff2) format("woff2");font-weight:600;font-display:swap}
@font-face{font-family:"Poppins";src:url(/assets/fonts/poppins-bold.woff2) format("woff2");font-weight:700;font-display:swap}
:root{
  --navy:#0a1b33;--navy2:#123a5e;--navy3:#0e2744;
  --teal:#24d6be;--blue:#50aaff;--teal-ink:#0a7a6c;
  --ink:#13233a;--body:#33445c;--muted:#5c6e86;--line:#dce4ee;
  --bg:#ffffff;--bg2:#f3f7fb;--on-dark:#f5f8fc;--on-dark-muted:#a9bfd6;
  --grad:linear-gradient(100deg,var(--teal),var(--blue));
  --radius:16px;--wrap:1120px;
  --sans:"Hiragino Sans","Hiragino Kaku Gothic ProN","Noto Sans JP","Noto Sans CJK JP","Yu Gothic UI","Yu Gothic",Meiryo,system-ui,-apple-system,"Segoe UI",sans-serif;
  --display:"Poppins",var(--sans);
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}*{transition:none!important}}
body{margin:0;font-family:var(--sans);color:var(--body);background:var(--bg);line-height:1.8;font-size:1rem;font-feature-settings:"palt" 0}
:lang(en) body,html[lang=en] body{line-height:1.65}
img,svg{max-width:100%;height:auto;display:block}
a{color:var(--teal-ink);text-underline-offset:.18em}
a:hover{text-decoration-thickness:2px}
:focus-visible{outline:3px solid var(--blue);outline-offset:2px;border-radius:4px}
h1,h2,h3{color:var(--ink);line-height:1.35;margin:0 0 .6em;font-weight:700;letter-spacing:.01em}
h1{font-size:clamp(1.9rem,5.5vw,3.1rem)}
h2{font-size:clamp(1.45rem,3.6vw,2rem)}
h3{font-size:1.15rem}
p{margin:0 0 1em}
.wrap{width:min(100% - 2.5rem,var(--wrap));margin-inline:auto}
.narrow>*{max-width:780px}
.skip{position:absolute;left:-999px;top:0;background:#fff;color:var(--navy);padding:.6rem 1rem;z-index:100}
.skip:focus{left:1rem;top:1rem}
.sr-only{position:absolute!important;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap}
.en{font-family:var(--display)}

/* header */
.site-header{background:var(--navy);color:var(--on-dark);position:sticky;top:0;z-index:50;border-bottom:1px solid rgba(255,255,255,.08)}
.site-header .wrap{display:flex;align-items:center;gap:1rem;min-height:64px}
.brand{display:flex;align-items:center;gap:.55rem;color:var(--on-dark);text-decoration:none;margin-right:auto}
.brand svg{width:34px;height:34px;flex:none}
@media (max-width:359px){.brand .kana{display:none}}
.wordmark{font-family:var(--display);font-weight:700;font-size:1.3rem;letter-spacing:.005em;line-height:1}
.wordmark b{color:var(--teal);font-weight:700}
.brand .kana{white-space:nowrap;font-size:.72rem;color:var(--on-dark-muted);border-left:1px solid rgba(36,214,190,.6);padding-left:.55rem;line-height:1.2;font-weight:600}
.nav{display:none}
.nav a,.lang a{color:var(--on-dark);text-decoration:none;font-size:.92rem;font-weight:600}
.nav a:hover,.nav a[aria-current=page]{color:var(--teal)}
.lang{display:flex;align-items:center}
.lang a{border:1px solid rgba(255,255,255,.3);border-radius:999px;padding:.25rem .75rem;font-size:.82rem;white-space:nowrap}
.lang a:hover{border-color:var(--teal);color:var(--teal)}
.menu{position:relative}
.menu summary{list-style:none;cursor:pointer;display:grid;place-items:center;width:44px;height:44px;border-radius:10px;color:var(--on-dark)}
.menu summary::-webkit-details-marker{display:none}
.menu summary svg{width:24px;height:24px}
.menu[open] summary{background:rgba(255,255,255,.08)}
.menu-panel{position:absolute;right:0;top:52px;background:var(--navy3);border:1px solid rgba(255,255,255,.12);border-radius:14px;padding:.5rem;min-width:240px;box-shadow:0 18px 40px rgba(0,0,0,.35)}
.menu-panel a{display:block;color:var(--on-dark);text-decoration:none;padding:.7rem .9rem;border-radius:10px;font-weight:600}
.menu-panel a:hover,.menu-panel a[aria-current=page]{background:rgba(36,214,190,.12);color:var(--teal)}
@media (min-width:900px){
  .nav{display:flex;gap:1.5rem;align-items:center}
  .menu{display:none}
}

/* buttons */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:.5rem;min-height:48px;padding:.7rem 1.4rem;border-radius:999px;font-weight:700;text-decoration:none;border:2px solid transparent;font-size:1rem;line-height:1.3;cursor:pointer}
.btn-primary{background:var(--grad);color:var(--navy)}
.btn-primary:hover{filter:brightness(1.07)}
.btn-ghost{border-color:rgba(255,255,255,.4);color:var(--on-dark)}
.btn-ghost:hover{border-color:var(--teal);color:var(--teal)}
.btn-outline{border-color:var(--teal-ink);color:var(--teal-ink);background:#fff}
.btn-outline:hover{background:var(--bg2)}
.btns{display:flex;flex-wrap:wrap;gap:.75rem}

/* hero */
.hero{background:radial-gradient(ellipse at 20% 60%,rgba(36,214,190,.16),transparent 55%),linear-gradient(120deg,var(--navy) 0%,var(--navy2) 100%);color:var(--on-dark);overflow:hidden;position:relative}
.hero .wrap{display:grid;gap:1.5rem;padding-block:3rem 3rem;align-items:center}
.hero h1{color:#fff;margin-bottom:.4em}
.eyebrow{display:inline-block;font-family:var(--display);font-weight:600;letter-spacing:.06em;color:var(--teal);font-size:.95rem;margin-bottom:.8rem}
.hero .sub{font-size:clamp(1.15rem,2.6vw,1.45rem);color:var(--on-dark-muted);font-weight:700;margin-bottom:1rem}
.hero .lead{color:var(--on-dark);max-width:36em;font-size:1.05rem;margin-bottom:1.8rem;opacity:.92}
.hero-art{justify-self:center;width:min(42vw,170px);filter:drop-shadow(0 20px 50px rgba(36,214,190,.25))}
.hero .note{font-size:.88rem;color:var(--on-dark-muted);margin-top:1.1rem}
@media (min-width:900px){
  .hero .wrap{grid-template-columns:1.25fr .75fr;padding-block:5.5rem 6rem}
  .hero-art{width:330px}
}
.page-hero{background:linear-gradient(120deg,var(--navy),var(--navy2));color:var(--on-dark)}
.page-hero .wrap{padding-block:3rem 3.2rem}
.page-hero h1{color:#fff;font-size:clamp(1.7rem,4.5vw,2.5rem);margin-bottom:.3em}
.page-hero p{color:var(--on-dark-muted);margin:0;max-width:40em}

/* sections */
.section{padding-block:3.5rem}
.section.alt{background:var(--bg2)}
.section-head{max-width:46em;margin-bottom:2rem}
.section-head p{color:var(--muted)}
@media (min-width:900px){.section{padding-block:5rem}}
.grid{display:grid;gap:1.25rem}
@media (min-width:700px){.grid-2{grid-template-columns:repeat(2,1fr)}.grid-3{grid-template-columns:repeat(3,1fr)}}
@media (min-width:700px) and (max-width:899px){.grid-3{grid-template-columns:1fr}}
.card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:1.5rem;display:flex;flex-direction:column}
.card h3{margin-bottom:.4em}
.card p{margin-bottom:.8em}
.card .more{margin-top:auto;font-weight:700}
.icon{width:48px;height:48px;border-radius:12px;background:linear-gradient(135deg,rgba(36,214,190,.18),rgba(80,170,255,.18));display:grid;place-items:center;margin-bottom:1rem;color:var(--teal-ink)}
.icon svg{width:26px;height:26px}
.tag{display:inline-block;font-size:.78rem;font-weight:700;padding:.15rem .65rem;border-radius:999px;background:#e6f7f4;color:var(--teal-ink);margin-bottom:.8rem;align-self:flex-start}
.tag.soon{background:#fff4e0;color:#8a5300}
.chips{display:flex;flex-wrap:wrap;gap:.5rem;padding:0;margin:1.25rem 0 0;list-style:none}
.chips li{border:1px solid var(--line);background:#fff;border-radius:999px;padding:.25rem .85rem;font-size:.88rem;color:var(--ink)}
.checks{list-style:none;padding:0;margin:0 0 1em}
.checks li{position:relative;padding-left:1.8rem;margin-bottom:.45rem}
.checks li::before{content:"";position:absolute;left:.2rem;top:.55em;width:.9rem;height:.5rem;border-left:3px solid var(--teal-ink);border-bottom:3px solid var(--teal-ink);transform:rotate(-45deg)}
.what{display:grid;gap:1rem}
@media (min-width:700px){.what{grid-template-columns:repeat(3,1fr)}}
.what div{border-left:3px solid var(--teal);padding:.2rem 0 .2rem 1rem}
.what strong{display:block;color:var(--ink);font-size:1.05rem;margin-bottom:.2rem}
.what span{color:var(--muted);font-size:.95rem}

/* steps */
.steps{list-style:none;padding:0;margin:0;display:grid;gap:1rem;counter-reset:s}
@media (min-width:700px){.steps{grid-template-columns:repeat(2,1fr)}}
@media (min-width:1000px){.steps{grid-template-columns:repeat(4,1fr)}}
.steps li{counter-increment:s;background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:1.4rem}
.steps li::before{content:counter(s);display:grid;place-items:center;width:38px;height:38px;border-radius:50%;background:var(--grad);color:var(--navy);font-family:var(--display);font-weight:700;margin-bottom:.8rem}
.steps h3{font-size:1.05rem}
.steps p{margin:0;font-size:.95rem;color:var(--muted)}

/* security band */
.dark{background:linear-gradient(120deg,var(--navy),var(--navy2));color:var(--on-dark)}
.dark h2,.dark h3{color:#fff}
.dark .section-head p,.dark p{color:var(--on-dark-muted)}
.dark a{color:var(--teal)}
.sec-list{list-style:none;padding:0;margin:0;display:grid;gap:1rem}
@media (min-width:700px){.sec-list{grid-template-columns:repeat(2,1fr)}}
@media (min-width:1000px){.sec-list{grid-template-columns:repeat(3,1fr)}}
.sec-list li{background:rgba(255,255,255,.05);border:1px solid rgba(255,255,255,.1);border-radius:var(--radius);padding:1.3rem}
.sec-list h3{font-size:1.02rem;margin-bottom:.35em;display:flex;gap:.5rem;align-items:center}
.sec-list h3 svg{width:20px;height:20px;color:var(--teal);flex:none}
.sec-list p{margin:0;font-size:.93rem}

/* CTA band */
.cta{background:var(--bg2)}
.cta-box{background:linear-gradient(120deg,var(--navy),var(--navy2));border-radius:24px;padding:2.2rem 1.6rem;color:var(--on-dark);display:grid;gap:1.25rem;align-items:center;position:relative;overflow:hidden}
.cta-box h2{color:#fff;margin-bottom:.3em}
.cta-box p{color:var(--on-dark-muted);margin:0}
@media (min-width:900px){.cta-box{grid-template-columns:1fr auto;padding:3rem}}

/* templates */
.product{gap:.2rem}
.price{font-family:var(--display);font-weight:700;color:var(--ink);font-size:1.35rem;margin:.2rem 0 .1rem}
.price small{font-family:var(--sans);font-size:.8rem;color:var(--muted);font-weight:600;margin-left:.2rem}
.price-alt{color:var(--muted);font-size:.9rem;margin-bottom:.8rem}
.product ul{margin:0 0 1rem;padding-left:1.2rem;font-size:.95rem}
.product .btn{margin-top:auto;align-self:flex-start}
.bundle{margin-top:1.5rem;border:2px dashed var(--teal);border-radius:var(--radius);padding:1.3rem 1.5rem;background:#fff;display:flex;flex-wrap:wrap;gap:1rem;align-items:center;justify-content:space-between}
.bundle p{margin:0}

/* prose / legal */
.prose>*{max-width:780px}
.prose>.table-wrap{max-width:980px}
.prose h2{font-size:1.3rem;margin-top:2.2rem;padding-top:.4rem}
.prose h3{margin-top:1.5rem}
.prose ul,.prose ol{padding-left:1.4rem}
.prose li{margin-bottom:.35rem}
.meta{color:var(--muted);font-size:.9rem}
.table-wrap{overflow-x:auto;margin:1rem 0 1.5rem}
table{border-collapse:collapse;width:100%;font-size:.95rem;background:#fff}
th,td{border:1px solid var(--line);padding:.75rem .9rem;text-align:left;vertical-align:top}
th{background:var(--bg2);color:var(--ink);font-weight:700}
.kv th{width:32%;min-width:9rem}
.todo{background:#fff4e0;color:#7a4a00;border-radius:4px;padding:0 .3rem;font-weight:600}
.notice{background:var(--bg2);border-left:4px solid var(--teal);border-radius:8px;padding:1rem 1.2rem;margin:1.2rem 0;font-size:.95rem}
.notice.warn{border-left-color:#e2a400;background:#fffaf0}

/* embeds */
.embed{border:2px dashed #b8c7d9;border-radius:var(--radius);background:#fff;padding:1.6rem 1.5rem;color:var(--muted);margin:1.5rem 0}
.embed strong{display:block;color:var(--ink);margin-bottom:.3rem}
.substack-embed{margin:1.5rem 0;background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:1.2rem 1.4rem;display:flex;flex-direction:column;align-items:center;gap:.75rem}
.substack-embed iframe{max-width:100%;display:block}
.substack-embed .meta{margin:0;text-align:center}
.fields{counter-reset:f;list-style:none;padding:0;margin:0;display:grid;gap:.6rem}
.fields li{background:#fff;border:1px solid var(--line);border-radius:12px;padding:.85rem 1rem}
.fields strong{color:var(--ink)}
.fields span{display:block;color:var(--muted);font-size:.9rem}
.req{color:#b42318;font-size:.8rem;font-weight:700;margin-left:.3rem}

/* footer */
.site-footer{background:var(--navy);color:var(--on-dark-muted);font-size:.92rem}
.site-footer .wrap{padding-block:2.8rem 2rem;display:grid;gap:2rem}
@media (min-width:800px){.site-footer .wrap{grid-template-columns:1.3fr 1fr 1fr}}
.site-footer h2{font-size:.85rem;color:#fff;letter-spacing:.06em;margin-bottom:.8rem}
.site-footer ul{list-style:none;margin:0;padding:0}
.site-footer li{margin-bottom:.4rem}
.site-footer a{color:var(--on-dark);text-decoration:none}
.site-footer a:hover{color:var(--teal);text-decoration:underline}
.site-footer .brand{margin-bottom:.8rem}
.copy{border-top:1px solid rgba(255,255,255,.08);padding-block:1.1rem;font-size:.82rem}
.mt{margin-top:2.5rem}
.site-footer h2.mt-s{margin-top:1.4rem}
.copy .wrap{display:block;padding:0}
/* Japanese typography: no small kana / punctuation at line start; phrase-aware wrapping for short text */
html[lang=ja] body{line-break:strict}
html[lang=ja] :is(h1,h2,h3,.sub,.section-head p,.what strong,.steps h3,.cta-box p){word-break:auto-phrase}
.tally-form{margin:1.5rem 0}
.tally-form iframe{display:block;width:100%;border:0}
.form-fallback{font-size:.92rem;color:var(--muted)}