/* === 共通設定 === */
* { box-sizing: border-box; }
body {
  margin: 0;
  font-family: 'Roboto', 'Noto Sans JP', sans-serif;
  background: #f3f4f6;
  color: #1f2937;
}
h2 { font-weight: 600; }
.material-symbols-outlined {
  font-variation-settings:
    'FILL' 0,
    'wght' 400,
    'GRAD' 0,
    'opsz' 24;
  font-size: 28px;   /* アイコンの大きさ */
  color: #0369a1;    /* 今のアクセントブルー */
  vertical-align: middle;
}


/* === Hero === */
.section-hero {
  margin: 4rem auto;
  max-width: 1100px;
  background: linear-gradient(135deg, #e0f2fe 0%, #ffffff 100%);
  border-radius: 24px;
  box-shadow: 0 8px 24px rgba(0,0,0,0.06);
  padding: 4rem 2.5rem;
  display: flex;
  align-items: center;
  justify-content: center;
}
.hero-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 2rem;
  flex-wrap: wrap;
}
.hero-text {
  flex: 1.1;
  min-width: 300px;
}
.hero-text h1 {
  font-size: 2.2rem;
  margin: 0.5rem 0 1rem;
  font-weight: 700;
  color: #0f172a;
}
.hero-text .lead {
  color: #334155;
  font-size: 1rem;
  line-height: 1.6;
  margin-bottom: 1.75rem;
}
.hero-actions {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
}
.hero-btn {
  display: inline-block;
  padding: 0.7rem 1.6rem;
  border-radius: 9999px;
  text-decoration: none;
  font-weight: 500;
  transition: all 0.25s ease;
}
.hero-primary {
  background: #0284c7;
  color: #fff;
}
.hero-primary:hover { background: #0369a1; }
.hero-outline {
  border: 2px solid #0284c7;
  color: #0284c7;
  background: transparent;
}
.hero-outline:hover {
  background: #e0f2fe;
}

.hero-visual {
  flex: 0.9;
  min-width: 320px;
  display: flex;
  justify-content: center;
  align-items: center;
}
.hero-placeholder {
  width: 100%;
  height: 220px;
  border-radius: 16px;
  background: repeating-linear-gradient(
    45deg,
    #f0f9ff,
    #f0f9ff 10px,
    #e0f2fe 10px,
    #e0f2fe 20px
  );
  display: flex;
  align-items: center;
  justify-content: center;
  color: #0369a1;
  font-weight: 500;
  font-size: 0.9rem;
  box-shadow: inset 0 0 8px rgba(0,0,0,0.05);
}

@media (max-width: 900px) {
  .section-hero {
    margin: 2rem 1rem;
    padding: 3rem 1.5rem;
    border-radius: 16px;
  }
  .hero-inner {
    flex-direction: column;
    text-align: center;
  }
  .hero-actions {
    justify-content: center;
  }
}

/* === About === */
.section-about {
  padding: 5rem 0;
  background: #fff;
  border-radius: 24px;
  box-shadow: 0 8px 24px rgba(0,0,0,0.08);
  margin: 4rem auto;
  max-width: 1100px;
}
.wrapper {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 2rem;
}
.about-inner {
  display: flex;
  gap: 3rem;
  align-items: flex-start;
}
.about-text { flex: 1.2; min-width: 320px; }
.eyebrow {
  text-transform: uppercase;
  letter-spacing: 0.12em;
  font-size: 0.8rem;
  color: #6b7280;
  margin-bottom: 0.75rem;
  font-weight: 500;
}
.about-text h2 {
  font-size: 2rem;
  margin-bottom: 1.25rem;
  line-height: 1.25;
}
.about-text p {
  margin-bottom: 1.25rem;
  color: #374151;
}
.about-meta {
  background: #e0f2fe;
  color: #0369a1;
  border-left: 4px solid #0284c7;
  padding: 1rem 1.25rem;
  border-radius: 0.75rem;
  font-weight: 500;
}
.about-card {
  flex: 0.8;
  background: #fafafa;
  border-radius: 16px;
  box-shadow: 0 2px 10px rgba(0,0,0,0.08);
  padding: 1.75rem;
}
.about-card h3 { margin: 0 0 1rem; font-size: 1rem; }
.about-card ul { list-style: none; padding: 0; margin: 0; }
.about-card li {
  display: flex; justify-content: space-between;
  gap: 1rem; padding: 0.75rem 0;
  border-bottom: 1px solid #e5e7eb;
}
.about-card li span { font-size: 0.85rem; color: #6b7280; }
.about-card li strong { font-weight: 500; color: #111827; }
.about-note { font-size: 0.8rem; color: #6b7280; margin-top: 1rem; text-align: right; }

/* === Service === */
.section-service {
  margin: 4rem auto;
  max-width: 1100px;
  background: #fff;
  border-radius: 24px;
  box-shadow: 0 8px 24px rgba(0,0,0,0.05);
  padding: 3.5rem 2rem 3.75rem;
}
.service-wrapper { max-width: 950px; margin: 0 auto; text-align: left; }
.service-list {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 1.5rem;
  margin-top: 2rem;
}
.service-item {
  background: #f9fafb;
  border-radius: 18px;
  box-shadow: 0 3px 10px rgba(0,0,0,0.03);
  padding: 1.5rem 1.4rem 1.3rem;
  transition: box-shadow 0.25s ease, transform 0.25s ease;
}
.service-item:hover {
  box-shadow: 0 6px 18px rgba(0,0,0,0.08);
  transform: translateY(-3px);
}
.service-icon {
  width: 40px; height: 40px;
  border-radius: 14px;
  background: #e0f2fe;
  display: grid;
  place-items: center;
  font-size: 1.25rem;
  color: #0369a1;
  margin-bottom: 0.75rem;
}
.service-item h3 {
  margin: 0 0 0.5rem;
  font-size: 1rem;
  font-weight: 600;
  color: #111827;
}
.service-item p { font-size: 0.9rem; color: #4b5563; }

/* === Activity === */
.section-activity {
  margin: 4rem auto;
  max-width: 900px;
  background: #f9fafb;
  border-radius: 20px;
  box-shadow: 0 4px 14px rgba(0,0,0,0.04);
  padding: 2.5rem 2rem;
  text-align: center;
}
.section-activity h2 {
  font-size: 1.4rem;
  margin-bottom: 1rem;
  color: #111827;
}
.activity-list {
  list-style: none;
  padding: 0;
  margin: 0;
  font-size: 0.95rem;
  color: #374151;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}
.activity-list strong { color: #0284c7; }

/* === Skills === */
.section-skills {
  margin: 4rem auto;
  max-width: 1100px;
  background: #fff;
  border-radius: 24px;
  box-shadow: 0 8px 24px rgba(0,0,0,0.05);
  padding: 3.5rem 2rem 3.75rem;
}
.skills-wrapper { max-width: 950px; margin: 0 auto; }
.skills-head { text-align: left; margin-bottom: 2.5rem; }
.lead { color: #4b5563;  }
.skills-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1.5rem;
}
.skill-card {
  background: #f9fafb;
  border-radius: 18px;
  box-shadow: 0 3px 10px rgba(0,0,0,0.03);
  padding: 1.5rem 1.4rem 1.3rem;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  transition: box-shadow 0.25s ease, transform 0.25s ease;
}
.skill-card:hover {
  box-shadow: 0 6px 18px rgba(0,0,0,0.08);
  transform: translateY(-3px);
}
.skill-icon {
  width: 42px; height: 42px;
  border-radius: 14px;
  background: #e0f2fe;
  display: grid;
  place-items: center;
  font-size: 1.25rem;
  color: #0369a1;
}
.skill-card h3 { margin: 0; font-size: 1.05rem; }
.skill-card p { font-size: 0.9rem; color: #4b5563; }
.skill-card ul { list-style: none; padding: 0; margin: 0.25rem 0 0; }
.skill-card li { font-size: 0.8rem; color: #6b7280; margin-bottom: 0.25rem; }

/* === Projects === */
.section-projects {
  margin: 4rem auto;
  max-width: 1100px;
  background: #fff;
  border-radius: 24px;
  box-shadow: 0 8px 24px rgba(0,0,0,0.05);
  padding: 3.5rem 2rem 3.75rem;
}
.projects-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 1.5rem;
}
.project-card {
  background: #f9fafb;
  border-radius: 18px;
  box-shadow: 0 3px 10px rgba(0,0,0,0.03);
  overflow: hidden;
  display: flex;
  flex-direction: column;
  transition: box-shadow 0.25s ease, transform 0.25s ease;
}
.project-card:hover {
  box-shadow: 0 6px 18px rgba(0,0,0,0.08);
  transform: translateY(-3px);
}
.project-thumb {
  width: 100%;
  height: 180px;
  background: #e0f2fe;
  display: grid;
  place-items: center;
  font-size: 2rem;
  color: #0369a1;
}
.project-content {
  padding: 1.25rem 1.5rem 1.75rem;
  flex: 1;
  display: flex;
  flex-direction: column;
}
.project-content h3 {
  margin: 0 0 0.75rem;
  font-size: 1.05rem;
  color: #111827;
}
.project-content p {
  flex: 1;
  font-size: 0.9rem;
  color: #4b5563;
  margin-bottom: 1rem;
}
.project-btn {
  align-self: flex-start;
  background: #0284c7;
  color: #fff;
  border: none;
  border-radius: 8px;
  padding: 0.5rem 1.25rem;
  font-size: 0.85rem;
  cursor: pointer;
  text-decoration: none;
  transition: background 0.25s ease;
}
.project-btn:hover { background: #0369a1; }

/* === Contact === */
.section-contact {
  margin: 4rem auto 5rem;
  max-width: 1100px;
  background: #fff;
  border-radius: 24px;
  box-shadow: 0 8px 24px rgba(0,0,0,0.05);
  padding: 3.5rem 2rem 2.5rem;
  text-align: center;
}
.contact-wrapper { max-width: 720px; margin: 0 auto; }
.contact-actions {
  display: flex;
  justify-content: center;
  gap: 1rem;
  flex-wrap: wrap;
  margin-bottom: 1.5rem;
}
.contact-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 170px;
  padding: 0.65rem 1.4rem;
  border-radius: 9999px;
  text-decoration: none;
  font-weight: 500;
  transition: transform 0.2s ease, box-shadow 0.2s ease;
  box-shadow: 0 3px 10px rgba(0,0,0,0.03);
}
.contact-btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 16px rgba(0,0,0,0.08);
}
.contact-x { background: #e0f2fe; color: #0369a1; }
.contact-note {
  font-size: 0.75rem;
  color: #9ca3af;
  margin-top: 0.5rem;
}
.contact-footer {
  margin-top: 2.5rem;
  font-size: 0.7rem;
  color: #9ca3af;
  text-align: center;
}

/* === Responsive === */
@media (max-width: 900px) {
  .about-inner { flex-direction: column; }
  .skills-grid { grid-template-columns: 1fr; }
  .section-about, .section-skills, .section-projects, .section-contact {
    margin: 0 1rem 3rem;
    border-radius: 16px;
  }
  .contact-actions { flex-direction: column; }
  .contact-btn { width: 100%; }
}