:root{
  --bg:#0b1220;
  --panel:#0f172a;
  --line:#243047;
  --text:#e5e7eb;
  --muted:#a8b3cf;
  --accent:#a78bfa;
}

*{ box-sizing:border-box; }
html,body{ margin:0; padding:0; }
body{
  font-family: system-ui, -apple-system, "Segoe UI", sans-serif;
  background: radial-gradient(circle at 50% 20%, #111b3a, var(--bg) 60%);
  color: var(--text);
  line-height: 1.7;
}

a{ color: inherit; text-decoration: none; }

.container{
  width: min(980px, 92vw);
  margin: 0 auto;
}

.header{
  position: sticky;
  top: 0;
  z-index: 50;
  backdrop-filter: blur(10px);
  background: rgba(11,18,32,0.65);
  border-bottom: 1px solid rgba(36,48,71,0.6);
}
.header__inner{
  display:flex;
  align-items:center;
  justify-content:space-between;
  padding: 14px 0;
}
.logo{
  font-weight: 700;
  letter-spacing: 0.08em;
}

.nav{
  display:flex;
  gap: 18px;
  align-items:center;
}
.nav a{
  color: var(--muted);
  font-size: 14px;
}
.nav a:hover{ color: var(--text); }

.hamburger{
  display:none;
  width: 44px;
  height: 44px;
  border: 1px solid rgba(36,48,71,0.8);
  background: rgba(15,23,42,0.6);
  border-radius: 12px;
  cursor: pointer;
}
.hamburger span{
  display:block;
  width: 20px;
  height: 2px;
  background: var(--text);
  margin: 5px auto;
  border-radius: 2px;
}

.hero{
  padding: 56px 0 28px;
}
.hero__inner{ padding: 14px 0; }
.hero__tag{
  color: var(--muted);
  font-size: 14px;
  letter-spacing: 0.06em;
}
.hero__title{
  margin: 8px 0 10px;
  font-size: clamp(28px, 4vw, 44px);
  line-height: 1.2;
}
.hero__text{
  color: var(--muted);
  max-width: 58ch;
}
.hero__btns{
  display:flex;
  gap: 12px;
  margin-top: 18px;
  flex-wrap: wrap;
}

.section{
  padding: 40px 0;
}
.section__title{
  font-size: 20px;
  margin: 0 0 14px;
  letter-spacing: 0.04em;
}

.card{
  background: rgba(15,23,42,0.7);
  border: 1px solid rgba(36,48,71,0.8);
  border-radius: 16px;
  padding: 18px;
}

.list{
  margin: 12px 0 0;
  padding-left: 18px;
  color: var(--muted);
}

.grid{
  display:grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 14px;
}
.skill{
  background: rgba(15,23,42,0.7);
  border: 1px solid rgba(36,48,71,0.8);
  border-radius: 16px;
  padding: 14px;
}
.skill h3{ margin: 0 0 8px; font-size: 16px; }
.skill p{ margin: 0; color: var(--muted); font-size: 14px; }

.works{
  display:grid;
  gap: 14px;
}
.work{
  .work{
  display:flex;
  gap:14px;
  align-items:flex-start;
  background: rgba(15,23,42,0.7);
  border: 1px solid rgba(36,48,71,0.8);
  border-radius: 16px;
  padding: 14px;
}
.work__thumbLink{
  display:block;
  flex: 0 0 280px;
  border-radius: 14px;
  overflow:hidden;
  border: 1px solid rgba(36,48,71,0.8);
}
.work__thumb{
  width:100%;
  aspect-ratio: 16 / 9;
  object-fit: cover;
  display:block;
}
.work__body{
  flex: 1;
  min-width: 0;
}
.work__title{ margin: 0 0 6px; font-size: 16px; }
.work__desc{ margin: 0 0 10px; color: var(--muted); font-size: 14px; }

.tags{
  display:flex;
  flex-wrap:wrap;
  gap: 6px;
  list-style:none;
  padding:0;
  margin: 0 0 10px;
}
.tags li{
  font-size: 12px;
  color: var(--muted);
  border: 1px solid rgba(36,48,71,0.8);
  padding: 3px 8px;
  border-radius: 999px;
}

.work__links{ display:flex; gap: 10px; }
.link{
  font-size: 14px;
  color: var(--accent);
  border-bottom: 1px dashed rgba(167,139,250,0.6);
}
.link:hover{ color: var(--text); }

.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap: 8px;
  padding: 10px 14px;
  border-radius: 14px;
  background: rgba(167,139,250,0.18);
  border: 1px solid rgba(167,139,250,0.35);
  color: var(--text);
  font-size: 14px;
}
.btn:hover{ background: rgba(167,139,250,0.26); }
.btn--sub{
  background: rgba(15,23,42,0.6);
  border: 1px solid rgba(36,48,71,0.9);
}
.btn--sub:hover{ background: rgba(15,23,42,0.85); }

.contact{
  display:flex;
  gap: 12px;
  flex-wrap: wrap;
  margin-top: 10px;
}
.note{ color: var(--muted); font-size: 12px; margin-top: 12px; }

.footer{
  border-top: 1px solid rgba(36,48,71,0.6);
  padding: 18px 0;
  color: var(--muted);
}
.footer__inner{
  display:flex;
  align-items:center;
  justify-content:space-between;
}
.toTop{
  width: 36px;
  height: 36px;
  display:grid;
  place-items:center;
  border-radius: 12px;
  border: 1px solid rgba(36,48,71,0.8);
  background: rgba(15,23,42,0.6);
}

/* ===== SP ===== */
@media (max-width: 760px){
  .grid{ grid-template-columns: 1fr; }
  .work{ flex-direction: column; }
  .work__thumbLink{
    flex: none;
    width: 100%;
  }
  .work__thumb{ min-height: 160px; }

  .hamburger{ display:block; }
  .nav{
    position: absolute;
    right: 4vw;
    top: 60px;
    width: min(260px, 92vw);
    display:none;
    flex-direction: column;
    gap: 0;
    background: rgba(15,23,42,0.92);
    border: 1px solid rgba(36,48,71,0.9);
    border-radius: 16px;
    overflow:hidden;
  }
  .nav a{
    padding: 12px 14px;
    border-top: 1px solid rgba(36,48,71,0.6);
    color: var(--text);
  }
  .nav a:first-child{ border-top: none; }
  .nav.is-open{ display:flex; }
}