/* ===== 新見康樹 BLOG 共通スタイル ===== */
:root{
  --navy:#0B1F33;
  --navy-mid:#122840;
  --sky:#4FC3E8;
  --sky-deep:#2FA8D6;
  --white:#FFFFFF;
  --gold:#C8922A;
  --line:rgba(255,255,255,.1);
  --wrap:1160px;
}
*{margin:0;padding:0;box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{font-family:'Noto Sans JP',sans-serif;color:#1A1A2E;background:var(--navy);overflow-x:hidden;}

/* ===== NAV ===== */
.nav{
  position:fixed;top:0;left:0;right:0;z-index:1000;
  display:flex;align-items:center;justify-content:space-between;
  padding:0 40px;height:64px;
  background:rgba(11,31,51,.92);backdrop-filter:blur(10px);
  border-bottom:1px solid var(--line);
}
.nav-logo a{color:var(--white);font-family:'Shippori Mincho',serif;font-size:18px;letter-spacing:.1em;text-decoration:none;}
.nav-links{display:flex;gap:28px;list-style:none;}
.nav-links a{color:rgba(255,255,255,.75);font-size:12.5px;letter-spacing:.12em;text-decoration:none;transition:.2s;}
.nav-links a:hover,.nav-links a.current{color:var(--sky);}
.nav-cta{
  border:1px solid var(--sky);color:var(--sky)!important;
  padding:8px 20px;border-radius:999px;font-size:12px;letter-spacing:.1em;
  text-decoration:none;transition:.25s;white-space:nowrap;
}
.nav-cta:hover{background:var(--sky);color:var(--navy)!important;}
.nav-toggle{display:none;flex-direction:column;justify-content:space-between;width:26px;height:18px;background:none;border:none;cursor:pointer;padding:0;}
.nav-toggle span{display:block;width:100%;height:2px;background:var(--white);border-radius:2px;transition:.3s;}
.nav-toggle.open span:nth-child(1){transform:translateY(8px) rotate(45deg);}
.nav-toggle.open span:nth-child(2){opacity:0;}
.nav-toggle.open span:nth-child(3){transform:translateY(-8px) rotate(-45deg);}

/* ===== COMMON ===== */
.wrap{max-width:var(--wrap);margin:0 auto;padding:0 40px;}
.narrow{max-width:760px;margin:0 auto;}
.section-label{
  display:flex;align-items:center;gap:14px;
  font-size:10px;letter-spacing:.3em;color:var(--sky-deep);margin-bottom:16px;
}
.section-label::before{content:'';display:block;width:32px;height:1px;background:var(--sky-deep);}

.page-head{
  position:relative;padding:170px 0 80px;
  background:
    radial-gradient(900px 420px at 12% 0%, rgba(79,195,232,.16), transparent 62%),
    linear-gradient(160deg,#0B1F33 0%,#0D2236 55%,#081828 100%);
  overflow:hidden;
}
.page-head .en{
  font-family:'Cormorant Garamond',serif;font-size:13px;
  letter-spacing:.35em;color:var(--sky);display:block;margin-bottom:20px;
}
.page-head h1{
  font-family:'Shippori Mincho',serif;font-weight:800;color:var(--white);
  font-size:clamp(28px,4.4vw,50px);line-height:1.4;margin-bottom:22px;
}
.page-head .lead{color:rgba(255,255,255,.7);font-size:15px;line-height:2;max-width:640px;}
.page-head .meta{
  display:flex;gap:18px;align-items:center;flex-wrap:wrap;
  margin-top:26px;font-size:12.5px;color:rgba(255,255,255,.55);letter-spacing:.06em;
}
.tag{
  border:1px solid rgba(79,195,232,.4);color:var(--sky);
  font-size:11px;padding:5px 14px;border-radius:999px;background:rgba(79,195,232,.07);
}

/* ===== 記事一覧 ===== */
.list-sec{background:#0D2236;padding:90px 0 110px;}
.post-list{display:grid;gap:16px;}
.post{
  display:block;text-decoration:none;
  background:rgba(255,255,255,.04);border:1px solid var(--line);
  border-radius:6px;padding:30px 34px;transition:.25s;
}
.post:hover{background:rgba(79,195,232,.07);border-color:rgba(79,195,232,.45);transform:translateY(-2px);}
.post .date{font-family:'Cormorant Garamond',serif;font-size:14px;color:var(--sky);letter-spacing:.1em;display:block;margin-bottom:10px;}
.post h2{font-family:'Shippori Mincho',serif;font-size:clamp(17px,2vw,21px);color:var(--white);line-height:1.6;margin-bottom:12px;font-weight:600;}
.post p{color:rgba(255,255,255,.6);font-size:14px;line-height:1.9;}
.post .tags{display:flex;gap:8px;flex-wrap:wrap;margin-top:16px;}

.empty-note{
  background:rgba(255,255,255,.04);border:1px solid var(--line);
  border-left:3px solid var(--gold);border-radius:0 6px 6px 0;
  padding:26px 30px;margin-top:26px;
}
.empty-note p{color:rgba(255,255,255,.65);font-size:14px;line-height:1.95;}
.empty-note a{color:var(--sky);text-decoration:none;}
.empty-note a:hover{text-decoration:underline;}

/* ===== 記事本文 ===== */
.article{background:#0D2236;padding:80px 0 100px;}
.article-body{color:rgba(255,255,255,.78);font-size:16px;line-height:2.15;}
.article-body p{margin-bottom:26px;}
.article-body h2{
  font-family:'Shippori Mincho',serif;font-size:clamp(21px,2.6vw,27px);
  color:var(--white);font-weight:800;line-height:1.5;
  margin:64px 0 24px;padding-left:16px;border-left:3px solid var(--sky);
}
.article-body h3{
  font-family:'Shippori Mincho',serif;font-size:18px;color:var(--sky);
  margin:40px 0 16px;font-weight:600;
}
.article-body strong{color:var(--white);font-weight:700;}
.article-body ul,.article-body ol{margin:0 0 26px 0;padding-left:0;list-style:none;}
.article-body li{position:relative;padding-left:22px;margin-bottom:12px;line-height:1.95;}
.article-body ul li::before{content:'';position:absolute;left:0;top:.78em;width:7px;height:7px;border-radius:50%;background:var(--sky);}
.article-body ol{counter-reset:n;}
.article-body ol li{counter-increment:n;}
.article-body ol li::before{content:counter(n)'.';position:absolute;left:0;top:0;color:var(--sky);font-family:'Cormorant Garamond',serif;font-size:17px;}
.article-body blockquote{
  border-left:2px solid var(--sky);background:rgba(79,195,232,.06);
  padding:24px 28px;border-radius:0 4px 4px 0;margin:0 0 30px;
}
.article-body blockquote p{margin:0;font-family:'Shippori Mincho',serif;font-size:17px;color:rgba(255,255,255,.88);line-height:1.95;}
.article-body img{width:100%;border-radius:6px;margin:12px 0 30px;}
.article-body a{color:var(--sky);}

.callout{
  background:rgba(79,195,232,.08);border:1px solid rgba(79,195,232,.3);
  border-radius:6px;padding:32px 34px;margin:56px 0 0;
}
.callout h3{font-family:'Shippori Mincho',serif;font-size:19px;color:var(--white);margin-bottom:14px;}
.callout p{color:rgba(255,255,255,.72);font-size:14.5px;line-height:1.95;margin-bottom:20px;}
.callout .btns{display:flex;gap:12px;flex-wrap:wrap;}
.btn-sky{
  display:inline-block;background:var(--sky);color:var(--navy);
  padding:13px 30px;border-radius:999px;font-size:13px;font-weight:700;
  letter-spacing:.08em;text-decoration:none;transition:.25s;
}
.btn-sky:hover{background:#7dd8f0;}
.btn-line{
  display:inline-block;border:1px solid rgba(255,255,255,.35);color:rgba(255,255,255,.85);
  padding:13px 26px;border-radius:999px;font-size:13px;letter-spacing:.08em;
  text-decoration:none;transition:.25s;
}
.btn-line:hover{border-color:var(--sky);color:var(--sky);}

/* .article-body a より詳細度を上げる（ボタンの文字色を守る） */
.article-body a.btn-sky{color:var(--navy);}
.article-body a.btn-sky:hover{color:var(--navy);}
.article-body a.btn-line{color:rgba(255,255,255,.85);}
.article-body a.btn-line:hover{color:var(--sky);}

.disclaimer{
  border-top:1px solid var(--line);margin-top:56px;padding-top:26px;
  font-size:13px;color:rgba(255,255,255,.45);line-height:1.9;
}
.post-nav{margin-top:48px;display:flex;gap:16px;flex-wrap:wrap;}

/* ===== FOOTER ===== */
footer{background:#060F1A;padding:44px 0;text-align:center;}
footer .f-back{display:inline-block;color:rgba(255,255,255,.55);font-size:12.5px;letter-spacing:.1em;text-decoration:none;margin-bottom:20px;transition:.2s;}
footer .f-back:hover{color:var(--sky);}
footer .f-name{font-family:'Shippori Mincho',serif;font-size:18px;color:rgba(255,255,255,.5);letter-spacing:.1em;margin-bottom:8px;}
footer .f-copy{font-size:11px;color:rgba(255,255,255,.25);letter-spacing:.1em;}

/* ===== MOBILE ===== */
@media(max-width:880px){
  .nav{padding:0 24px;}
  .nav-links{display:none;position:fixed;top:64px;left:0;right:0;bottom:0;background:rgba(8,24,40,.97);flex-direction:column;align-items:center;justify-content:center;gap:30px;z-index:9999;}
  .nav-links.open{display:flex;}
  .nav-links a{font-size:18px;}
  .nav-cta{display:none;}
  .nav-toggle{display:flex;}
  .wrap{padding:0 24px;}
  .page-head{padding:130px 0 64px;}
  .list-sec,.article{padding:64px 0 80px;}
  .post{padding:24px 22px;}
  .article-body{font-size:15.5px;}
  .callout{padding:26px 22px;}
  .btn-sky,.btn-line{width:100%;text-align:center;}
}
@media(prefers-reduced-motion:reduce){*{animation:none!important;transition:none!important;}}