/* GeoCAD Converter — 販売サイト共通スタイル
   全ページで読み込む。配色は地図/CAD を想起させるティール基調。 */

:root{
  --ink:#1b2733; --sub:#5a6b7d; --line:#e0e6ee; --bg:#ffffff; --bg2:#f5f8fa;
  --accent:#0e6e64; --accent-d:#0a554e; --accent-bg:#e7f3f1;
  --buy:#c2541b; --buy-d:#a64413; --dark:#0b1118; --dark2:#10302c;
  --radius:12px; --maxw:1040px;
  --shadow:0 1px 3px rgba(20,40,50,.06), 0 8px 28px rgba(20,40,50,.06);
}
*{box-sizing:border-box; margin:0; padding:0}
html{scroll-behavior:smooth; scroll-padding-top:70px}
body{font-family:"Hiragino Kaku Gothic ProN","Yu Gothic UI","Meiryo",system-ui,sans-serif;
     color:var(--ink); background:var(--bg); line-height:1.8; font-size:16px;
     -webkit-font-smoothing:antialiased}
img{max-width:100%; height:auto; display:block}
a{color:var(--accent); text-decoration:none}
a:hover{text-decoration:underline}
.wrap{max-width:var(--maxw); margin:0 auto; padding:0 20px}

/* ---- nav ---- */
.nav{position:sticky; top:0; z-index:50; background:rgba(255,255,255,.92);
     backdrop-filter:blur(8px); border-bottom:1px solid var(--line)}
.nav .wrap{display:flex; align-items:center; gap:1.2rem; height:60px}
.nav .brand{display:flex; align-items:center; gap:.55rem; font-weight:800;
     font-size:1.05rem; color:var(--ink)}
.nav .brand:hover{text-decoration:none}
.nav .brand img{width:28px; height:28px}
.nav .links{display:flex; gap:1.1rem; margin-left:auto; align-items:center}
.nav .links a{color:var(--sub); font-size:.93rem; font-weight:600}
.nav .links a:hover{color:var(--accent); text-decoration:none}
.nav .nav-buy{background:var(--buy); color:#fff !important; padding:.5rem 1.05rem;
     border-radius:8px; font-weight:700}
.nav .nav-buy:hover{background:var(--buy-d); text-decoration:none}
.nav .burger{display:none}
@media(max-width:760px){
  .nav .links a:not(.nav-buy){display:none}
}

/* ---- hero ---- */
.hero{background:linear-gradient(155deg,#10302c 0%,#0e6e64 72%,#15897d 100%);
     color:#fff; padding:4.2rem 0 3.6rem; overflow:hidden}
.hero .wrap{display:grid; grid-template-columns:1.05fr .95fr; gap:2.4rem; align-items:center}
.hero .badge{display:inline-block; font-size:.78rem; letter-spacing:.08em;
     background:rgba(255,255,255,.16); border:1px solid rgba(255,255,255,.35);
     border-radius:999px; padding:.18rem .95rem; margin-bottom:1.1rem}
.hero h1{font-size:2.15rem; line-height:1.34; margin-bottom:1rem; letter-spacing:.01em}
.hero p.lead{font-size:1.04rem; opacity:.94; margin-bottom:1.7rem}
.hero .cta{display:flex; gap:.85rem; flex-wrap:wrap}
.hero small{display:block; margin-top:1rem; opacity:.82; font-size:.82rem}
.hero .shot{border-radius:14px; box-shadow:0 18px 50px rgba(0,0,0,.32);
     border:1px solid rgba(255,255,255,.18); overflow:hidden; background:#fff}
.hero .shot img{width:100%; height:auto; display:block}
@media(max-width:820px){
  .hero .wrap{grid-template-columns:1fr; gap:1.8rem}
  .hero h1{font-size:1.7rem}
  .hero .shot{order:2}
}

/* ---- buttons ---- */
.btn{display:inline-block; border-radius:9px; padding:.82rem 1.6rem; font-weight:700;
     font-size:1rem; text-decoration:none; transition:filter .15s, background .15s; cursor:pointer; border:0}
.btn:hover{filter:brightness(1.07); text-decoration:none}
.btn-buy{background:var(--buy); color:#fff}
.btn-buy:hover{background:var(--buy-d)}
.btn-dl{background:#fff; color:var(--accent-d)}
.btn-ghost{background:transparent; color:#fff; border:1px solid rgba(255,255,255,.55)}
.btn-line{background:#fff; color:var(--ink); border:1px solid var(--line)}

/* ---- sections ---- */
section{padding:3.4rem 0}
section.alt{background:var(--bg2)}
h2{font-size:1.55rem; margin-bottom:.4rem; padding-left:.65rem; border-left:5px solid var(--accent)}
.sec-sub{color:var(--sub); margin-bottom:1.5rem; font-size:.96rem}

/* ---- feature grid ---- */
.grid{display:grid; grid-template-columns:repeat(auto-fit,minmax(270px,1fr)); gap:1rem}
.card{background:#fff; border:1px solid var(--line); border-radius:var(--radius);
     padding:1.4rem 1.5rem; box-shadow:var(--shadow)}
.card h3{font-size:1.04rem; color:var(--accent-d); margin-bottom:.55rem; line-height:1.4}
.card p{font-size:.92rem; color:var(--sub); line-height:1.65}
.card p .hl{color:var(--accent-d); font-weight:700; display:block; margin-bottom:.25rem; font-size:.98rem}
.chips{display:flex; flex-wrap:wrap; gap:.45rem; margin-top:1.2rem}
.chip{background:var(--accent-bg); color:var(--accent-d); border-radius:999px;
     padding:.2rem .9rem; font-size:.84rem}
.note{font-size:.85rem; color:var(--sub); margin-top:1rem}

/* ---- before/after showcase ---- */
.showcase{display:grid; grid-template-columns:1fr 1fr; gap:1.2rem; align-items:stretch}
.showcase figure{background:#fff; border:1px solid var(--line); border-radius:var(--radius);
     overflow:hidden; box-shadow:var(--shadow)}
.showcase figure.dark{background:var(--dark)}
.showcase img{width:100%; height:auto; display:block; object-fit:contain}
.showcase figcaption{padding:.7rem 1rem; font-size:.86rem; color:var(--sub)}
.showcase figure.dark figcaption{color:#9fb2bd}
@media(max-width:720px){ .showcase{grid-template-columns:1fr} }

/* ---- steps ---- */
ol.steps{list-style:none; counter-reset:s; display:grid; gap:.9rem}
ol.steps li{counter-increment:s; background:#fff; border:1px solid var(--line);
     border-radius:var(--radius); padding:1rem 1.2rem 1rem 3.7rem; position:relative;
     box-shadow:var(--shadow)}
ol.steps li::before{content:counter(s); position:absolute; left:1rem; top:1rem;
     width:1.85rem; height:1.85rem; border-radius:50%; background:var(--accent); color:#fff;
     font-weight:700; display:flex; align-items:center; justify-content:center}
ol.steps b{color:var(--accent-d); display:block; margin-bottom:.3rem; font-size:1.02rem}

/* ---- pricing ---- */
.price-grid{display:grid; grid-template-columns:repeat(auto-fit,minmax(220px,1fr)); gap:1.1rem}
.price{background:#fff; border:2px solid var(--line); border-radius:var(--radius);
     padding:1.6rem 1.4rem; text-align:center; position:relative; box-shadow:var(--shadow);
     display:flex; flex-direction:column}
.price > .btn, .price > .note{margin-top:auto}
.price.main{border-color:var(--accent)}
.price.soon{background:#f4f6f8; opacity:.82}
.price.soon h3{color:#5a6b7d}
.price.soon ul{color:#7a8a99}
.price .tag{position:absolute; top:-.8rem; left:50%; transform:translateX(-50%);
     background:var(--accent); color:#fff; font-size:.72rem; font-weight:700;
     padding:.18rem .8rem; border-radius:999px; letter-spacing:.04em}
.price h3{font-size:1.05rem; margin-bottom:.4rem; min-height:2.6rem;
     display:flex; align-items:center; justify-content:center; line-height:1.35}
.price .yen{font-size:2.2rem; font-weight:800; color:var(--accent-d); line-height:1.1;
     display:flex; flex-direction:column; align-items:center; gap:.2rem; margin-bottom:.5rem}
.price .yen small{font-size:.82rem; font-weight:500; color:var(--sub); letter-spacing:.02em}
.price ul{list-style:none; margin:1rem 0 1.4rem; font-size:.9rem; color:var(--sub);
     text-align:left; flex-grow:1}
.price ul li{padding:.34rem 0 .34rem 1.3rem; position:relative; border-bottom:1px dashed var(--line); line-height:1.55}
.price ul li::before{content:"✓"; position:absolute; left:0; color:var(--accent); font-weight:700}
.price .btn{display:block; margin-top:auto; white-space:nowrap;
     padding:.75rem .9rem; font-size:.95rem}

/* ---- faq ---- */
details{background:#fff; border:1px solid var(--line); border-radius:10px;
     margin-top:.7rem; padding:.9rem 1.15rem; box-shadow:var(--shadow)}
summary{cursor:pointer; font-weight:700; list-style:none}
summary::-webkit-details-marker{display:none}
summary::before{content:"＋"; color:var(--accent); font-weight:700; margin-right:.5rem}
details[open] summary::before{content:"−"}
details p{margin-top:.6rem; font-size:.93rem; color:var(--sub)}

/* ---- prose (legal & guide pages) ---- */
.page-head{background:var(--bg2); border-bottom:1px solid var(--line); padding:2.4rem 0 2rem}
.page-head h1{font-size:1.7rem}
.page-head p{color:var(--sub); margin-top:.4rem; font-size:.95rem}
.prose{padding:2.6rem 0}
.prose h2{font-size:1.25rem; margin:2rem 0 .8rem}
.prose h2:first-child{margin-top:0}
.prose h3{font-size:1.05rem; color:var(--accent-d); margin:1.4rem 0 .5rem}
.prose p{margin:.7rem 0}
.prose ul,.prose ol{margin:.6rem 0 .9rem 1.4rem}
.prose li{margin:.3rem 0}
.prose table{border-collapse:collapse; width:100%; margin:1rem 0; font-size:.93rem}
.prose th,.prose td{border:1px solid var(--line); padding:.7rem .9rem; text-align:left; vertical-align:top}
.prose th{background:var(--bg2); white-space:nowrap; width:12rem}
.prose .muted{color:var(--sub); font-size:.9rem}
.callout{background:var(--accent-bg); border-left:4px solid var(--accent);
     border-radius:8px; padding:1rem 1.2rem; margin:1.2rem 0; font-size:.93rem}
.todo{background:#fff3cd; color:#8a6d00; padding:.05rem .4rem; border-radius:4px; font-size:.9em}

/* ---- footer ---- */
footer{background:var(--dark2); color:#cfe0dd; padding:2.6rem 0 2.2rem; font-size:.9rem; margin-top:1rem}
footer .cols{display:flex; flex-wrap:wrap; gap:2.4rem; justify-content:space-between}
footer a{color:#9fd6cd}
footer .fnav{display:flex; flex-wrap:wrap; gap:.4rem 1.1rem}
footer .fine{margin-top:1.6rem; padding-top:1.2rem; border-top:1px solid rgba(255,255,255,.12);
     opacity:.78; font-size:.82rem}

/* ---- sticky mobile CTA ---- */
.mobile-cta{display:none}
@media(max-width:760px){
  .mobile-cta{display:flex; position:fixed; bottom:0; left:0; right:0; z-index:60;
       gap:.6rem; padding:.6rem .8rem; background:rgba(255,255,255,.96);
       border-top:1px solid var(--line); backdrop-filter:blur(8px)}
  .mobile-cta .btn{flex:1; text-align:center; padding:.7rem 0; font-size:.95rem}
  body{padding-bottom:4.2rem}
}