:root{
  --accent:#1D4E89;--accent-d:#163d6c;--accent-l:#e8eef7;
  --ink:#15233a;--text:#2c3648;--muted:#5a6476;--line:#e2e6ed;--soft:#f5f7fa;--bg:#fff;
  --mark-bg:#fff1c7;--mark:#7a4f00;--ok:#1d7a4b;--ok-l:#e5f4ec;--bad:#a12a2a;--bad-l:#fbeaea;
  --r:10px;--font:system-ui,-apple-system,"Segoe UI","Noto Sans","Noto Sans JP",Roboto,"Helvetica Neue",Arial,sans-serif;
}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{margin:0;font-family:var(--font);color:var(--text);background:var(--bg);font-size:16px;line-height:1.65}
a{color:var(--accent)}
img{max-width:100%;display:block}
h1,h2,h3{color:var(--ink);line-height:1.3;margin:0 0 .5em;letter-spacing:-.01em}
h1{font-size:clamp(1.9rem,6vw,3rem);font-weight:750}
h2{font-size:clamp(1.45rem,4.2vw,2rem);font-weight:720}
h3{font-size:1.1rem;font-weight:680}
p{margin:0 0 1em}
.wrap{max-width:1120px;margin:0 auto;padding:0 20px}
.narrow{max-width:720px}
.skip{position:absolute;left:-9999px}
.skip:focus{left:12px;top:12px;background:#fff;padding:8px 12px;z-index:10}

/* nav */
.nav{border-bottom:1px solid var(--line);background:#fff}
.nav .wrap{display:flex;align-items:center;gap:16px;min-height:64px;flex-wrap:wrap}
.brand{display:flex;align-items:center;gap:10px;font-weight:760;color:var(--ink);text-decoration:none;font-size:1.12rem;margin-right:auto}
.brand img{width:34px;height:34px;border-radius:8px}
.nav .links{display:flex;gap:18px;align-items:center;flex-wrap:wrap}
.nav .links a{color:var(--text);text-decoration:none;font-size:.95rem;padding:10px 2px}
.nav .links a:hover{color:var(--accent)}
.nav .links a.btn{color:#fff;padding:8px 18px}
.nav .links a.btn:hover{color:#fff}
.nav .links .hide-s{display:none}
.brand{min-height:44px}
h1,h2,h3{text-wrap:balance}
p,li{text-wrap:pretty}
.card p{max-width:68ch}
.box h2,.questions h2{font-size:1.1rem;font-weight:680;margin-bottom:10px}
.foot .syng-legal-links a{min-height:44px;min-width:44px;display:inline-flex;align-items:center;justify-content:center}
.banner a,#forgot-link{display:inline-block;padding:10px 0}
@media(min-width:760px){.nav .links .hide-s{display:inline}}

/* buttons */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;min-height:46px;padding:10px 22px;border-radius:999px;border:1.5px solid var(--accent);background:var(--accent);color:#fff;font:inherit;font-weight:650;text-decoration:none;cursor:pointer;transition:background .15s}
.btn:hover{background:var(--accent-d)}
.btn.ghost{background:#fff;color:var(--accent)}
.btn.ghost:hover{background:var(--accent-l)}
.btn.small{min-height:40px;padding:6px 16px;font-size:.93rem}
.btn.danger{background:#fff;color:var(--bad);border-color:var(--bad)}
.btn:disabled{opacity:.55;cursor:default}
.nav .btn{min-height:42px;padding:8px 18px}
.btnrow{display:flex;gap:10px;flex-wrap:wrap;align-items:center}

/* hero */
.hero{padding:56px 0 64px}
.hero .lead{font-size:1.12rem;color:var(--muted);max-width:620px;margin-bottom:28px}
.hero .note{font-size:.92rem;color:var(--muted);margin-top:12px}
.eyebrow{display:inline-block;font-size:.85rem;font-weight:650;color:var(--accent);background:var(--accent-l);padding:4px 12px;border-radius:999px;margin-bottom:18px}
.demo{margin-top:48px;display:grid;gap:18px}
@media(min-width:900px){.demo{grid-template-columns:5fr 7fr;align-items:start}}
.panel{border:1px solid var(--line);border-radius:14px;background:#fff;overflow:hidden}
.panel-h{display:flex;justify-content:space-between;align-items:center;gap:10px;padding:12px 16px;border-bottom:1px solid var(--line);background:var(--soft);font-size:.85rem;color:var(--muted)}
.panel-b{padding:16px}
.tag{font-size:.75rem;font-weight:650;letter-spacing:.02em;padding:2px 10px;border-radius:999px;background:#fff;border:1px solid var(--line);color:var(--muted)}
.bubble{background:var(--soft);border-radius:14px 14px 14px 4px;padding:14px 16px;font-size:.95rem;color:var(--ink)}
.rows{width:100%;border-collapse:collapse;font-size:.92rem}
.rows th,.rows td{padding:7px 4px;border-bottom:1px solid var(--line);text-align:left;vertical-align:top}
.rows th{font-size:.78rem;color:var(--muted);font-weight:600;text-transform:uppercase;letter-spacing:.04em}
.rows .n{text-align:right;white-space:nowrap;font-variant-numeric:tabular-nums}
.rows tr.total td{font-weight:700;color:var(--ink);border-bottom:none}
.kv{display:grid;grid-template-columns:auto 1fr;gap:4px 14px;font-size:.92rem;margin:12px 0}
.kv dt{color:var(--muted)}
.kv dd{margin:0;color:var(--ink)}
.mark{background:var(--mark-bg);color:var(--mark);font-weight:650;padding:1px 6px;border-radius:5px;white-space:nowrap}
.sum{margin-top:12px;border-top:2px solid var(--ink);padding-top:10px}
.sum div{display:flex;justify-content:space-between;font-size:.95rem}
.sum .ttc{font-size:1.15rem;font-weight:750;color:var(--ink)}
.src{font-size:.8rem;color:var(--muted)}

/* sections */
section{padding:72px 0}
section.alt{background:var(--soft)}
.sec-lead{color:var(--muted);max-width:640px;margin-bottom:36px}
.steps{list-style:none;padding:0;margin:0;display:grid;gap:18px;counter-reset:s}
@media(min-width:800px){.steps{grid-template-columns:repeat(3,1fr)}}
.steps li{background:#fff;border:1px solid var(--line);border-radius:14px;padding:22px;counter-increment:s}
.steps li::before{content:counter(s);display:inline-flex;width:34px;height:34px;border-radius:50%;background:var(--accent);color:#fff;align-items:center;justify-content:center;font-weight:700;margin-bottom:12px}
.grid2{display:grid;gap:18px}
@media(min-width:800px){.grid2{grid-template-columns:1fr 1fr}}
.card{border:1px solid var(--line);border-radius:14px;padding:24px;background:#fff}
.card p:last-child{margin-bottom:0}
.ticks{list-style:none;padding:0;margin:0;columns:1;gap:24px}
@media(min-width:700px){.ticks{columns:2}}
.ticks li{padding:4px 0 4px 28px;position:relative;break-inside:avoid;font-size:.95rem}
.ticks li::before{content:"";position:absolute;left:4px;top:11px;width:12px;height:7px;border-left:2.5px solid var(--accent);border-bottom:2.5px solid var(--accent);transform:rotate(-45deg)}
.price-box{max-width:460px;border:2px solid var(--accent);border-radius:18px;padding:32px;background:#fff}
.price-box .amount{font-size:3rem;font-weight:780;color:var(--ink);line-height:1}
.price-box .amount small{font-size:1rem;font-weight:500;color:var(--muted)}
.faq details{border-bottom:1px solid var(--line);padding:6px 0}
.faq summary{cursor:pointer;font-weight:650;color:var(--ink);padding:12px 0;list-style:none;display:flex;justify-content:space-between;gap:12px}
.faq summary::after{content:"+";color:var(--accent);font-size:1.3rem;line-height:1}
.faq details[open] summary::after{content:"−"}
.faq details p{color:var(--text);margin:0 0 14px}
.band{background:var(--accent);color:#fff;text-align:center}
.band h2{color:#fff}
.band p{color:#dbe5f3}
.band .btn{background:#fff;color:var(--accent);border-color:#fff}
.band .btn:hover{background:var(--accent-l)}

/* footer */
.foot{border-top:1px solid var(--line);padding:32px 0 40px;font-size:.9rem;color:var(--muted)}
.foot .wrap{display:flex;flex-wrap:wrap;gap:12px 28px;align-items:center;justify-content:space-between}
.foot a{color:var(--muted)}
.syng-legal-links a{padding:8px 2px;display:inline-block}

/* forms */
.form-page{padding:48px 0 72px}
.form-card{max-width:440px;margin:0 auto;border:1px solid var(--line);border-radius:16px;padding:28px 24px;background:#fff}
label{display:block;font-weight:600;font-size:.92rem;color:var(--ink);margin:14px 0 6px}
.hint{font-weight:400;color:var(--muted);font-size:.85rem}
input[type=text],input[type=email],input[type=password],input[type=number],input[type=date],select,textarea{width:100%;font:inherit;color:var(--ink);padding:11px 12px;border:1.5px solid #cfd6e0;border-radius:var(--r);background:#fff;min-height:46px}
textarea{min-height:170px;resize:vertical;line-height:1.5}
input:focus,select:focus,textarea:focus{outline:none;border-color:var(--accent);box-shadow:0 0 0 3px var(--accent-l)}
.form-card .btn{width:100%;margin-top:20px}
.msg{padding:10px 14px;border-radius:var(--r);font-size:.93rem;margin:14px 0 0}
.msg.err{background:var(--bad-l);color:var(--bad)}
.msg.ok{background:var(--ok-l);color:var(--ok)}
.msg.info{background:var(--accent-l);color:var(--accent-d)}
.msg:empty{display:none}
.alt-link{text-align:center;font-size:.93rem;margin-top:18px;color:var(--muted)}

/* app */
.app-main{padding:28px 0 72px}
.tabs{display:flex;gap:6px;border-bottom:1px solid var(--line);margin-bottom:24px;overflow-x:auto}
.tabs button{font:inherit;background:none;border:none;border-bottom:3px solid transparent;padding:12px 14px;color:var(--muted);cursor:pointer;font-weight:600;white-space:nowrap}
.tabs button[aria-selected=true]{color:var(--accent);border-bottom-color:var(--accent)}
.banner{display:flex;flex-wrap:wrap;gap:10px;align-items:center;justify-content:space-between;background:var(--accent-l);color:var(--accent-d);border-radius:var(--r);padding:10px 14px;margin-bottom:20px;font-size:.93rem}
.banner.warn{background:var(--mark-bg);color:var(--mark)}
.cols{display:grid;gap:22px}
@media(min-width:1000px){.cols{grid-template-columns:minmax(0,5fr) minmax(0,6fr);align-items:start}}
.box{border:1px solid var(--line);border-radius:14px;padding:18px;background:#fff;margin-bottom:18px}
.box h3{margin-bottom:10px}
.row2{display:grid;gap:0 12px}
@media(min-width:600px){.row2{grid-template-columns:1fr 1fr}}
.row3{display:grid;gap:0 10px;grid-template-columns:2fr 1fr 1fr}
.items input{min-height:38px;padding:6px 8px}
.items td{padding:4px 3px;border-bottom:1px solid var(--line);vertical-align:middle}
.items .lbl{min-width:120px}
.items .q{width:64px}
.items .m{width:76px}
.items .x{background:none;border:none;color:var(--muted);cursor:pointer;font-size:1.2rem;padding:6px 8px;min-width:36px;min-height:36px}
.unknown td{background:#fffaf0}
.questions{background:var(--mark-bg);border-radius:12px;padding:14px 16px;margin-bottom:18px}
.questions h2{color:var(--mark)}
.questions ul{margin:0 0 10px;padding-left:20px}
.status{display:inline-block;font-size:.78rem;font-weight:650;padding:2px 10px;border-radius:999px;background:var(--soft);color:var(--muted)}
.status.sent{background:var(--accent-l);color:var(--accent-d)}
.status.accepted{background:var(--ok-l);color:var(--ok)}
.status.lost{background:var(--bad-l);color:var(--bad)}
.qlist{list-style:none;padding:0;margin:0}
.qlist li{border:1px solid var(--line);border-radius:12px;margin-bottom:10px}
.qlist button{all:unset;box-sizing:border-box;display:flex;width:100%;gap:12px;justify-content:space-between;align-items:center;padding:14px 16px;cursor:pointer;flex-wrap:wrap}
.qlist button:focus-visible{outline:3px solid var(--accent-l)}
.qlist .who{font-weight:650;color:var(--ink)}
.qlist .what{font-size:.88rem;color:var(--muted)}
.spin{display:inline-block;width:16px;height:16px;border:2.5px solid rgba(255,255,255,.4);border-top-color:#fff;border-radius:50%;animation:sp 1s linear infinite}
@keyframes sp{to{transform:rotate(360deg)}}
@media(prefers-reduced-motion:reduce){.spin{animation:none}}
.check{display:flex;gap:10px;align-items:center;font-weight:500;margin:8px 0}
.check input{width:20px;height:20px}
.hidden{display:none!important}

/* the quote document */
.doc{border:1px solid var(--line);border-radius:12px;padding:24px;background:#fff;font-size:.9rem;color:#1b2333;line-height:1.5}
.doc h2{font-size:1.3rem;margin:0 0 4px}
.doc h4{font-size:.8rem;text-transform:uppercase;letter-spacing:.05em;color:var(--muted);margin:16px 0 6px}
.doc .head{display:grid;gap:12px;grid-template-columns:1fr;border-bottom:2px solid var(--ink);padding-bottom:12px;margin-bottom:8px}
@media(min-width:600px){.doc .head{grid-template-columns:1fr 1fr}}
.doc table{width:100%;border-collapse:collapse}
.doc td,.doc th{padding:5px 4px;border-bottom:1px solid var(--line);text-align:left;vertical-align:top}
.doc .n{text-align:right;white-space:nowrap}
.doc .sign{display:grid;grid-template-columns:1fr 1fr;gap:16px;margin-top:20px}
.doc .sign div{border:1px solid var(--line);border-radius:8px;min-height:90px;padding:8px;font-size:.82rem;color:var(--muted)}
.doc .resv{border:1px solid var(--line);border-radius:8px;min-height:110px;padding:8px;color:var(--muted);font-size:.82rem}
#print-area{display:none}
@media print{
  body *{visibility:hidden}
  #print-area,#print-area *{visibility:visible}
  #print-area{display:block;position:absolute;left:0;top:0;width:100%}
  #print-area .doc{border:none;padding:0;font-size:10.5pt}
  .mark{background:none;border:1px dashed #999}
}