/* ========================================
   藤崎隆伸 公式サイト - Global Styles
   ======================================== */

:root {
  --color-bg: #0b1120;
  --color-bg-card: #131c2e;
  --color-bg-card-hover: #1a2744;
  --color-text: #e2e8f0;
  --color-text-muted: #8ba4c7;
  --color-text-heading: #ffffff;
  --color-accent: #4a90d9;
  --color-accent-light: #6bb3f0;
  --color-border: #1e3050;
  --font-sans: 'Noto Sans JP', 'Helvetica Neue', Arial, sans-serif;
  --max-width: 1080px;
}

* { margin: 0; padding: 0; box-sizing: border-box; }

html {
  font-size: 16px;
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-sans);
  background: var(--color-bg);
  color: var(--color-text);
  line-height: 1.8;
  -webkit-font-smoothing: antialiased;
}

a {
  color: var(--color-accent-light);
  text-decoration: none;
  transition: color 0.2s;
}
a:hover { color: #fff; }

img { max-width: 100%; height: auto; }

/* ── Layout ── */
.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 24px;
}

/* ── Header ── */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(11, 17, 32, 0.92);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--color-border);
}
.site-header .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 64px;
}
.site-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 700;
  font-size: 1rem;
  color: #fff;
  letter-spacing: 0.05em;
}
.site-logo img {
  width: 36px;
  height: 36px;
  border-radius: 8px;
}
.site-nav { display: flex; gap: 24px; }
.site-nav a {
  font-size: 0.85rem;
  color: var(--color-text-muted);
  letter-spacing: 0.03em;
  transition: color 0.2s;
}
.site-nav a:hover,
.site-nav a.active { color: #fff; }

.mobile-menu-btn {
  display: none;
  background: none;
  border: none;
  color: #fff;
  font-size: 1.5rem;
  cursor: pointer;
}

/* ── Hero ── */
.hero {
  padding: 100px 0 80px;
  text-align: center;
}
.hero h1 {
  font-size: 2.2rem;
  font-weight: 700;
  color: var(--color-text-heading);
  margin-bottom: 8px;
  letter-spacing: 0.02em;
}
.hero .subtitle {
  font-size: 1rem;
  color: var(--color-accent-light);
  margin-bottom: 24px;
}
.hero .description {
  font-size: 0.95rem;
  color: var(--color-text-muted);
  max-width: 600px;
  margin: 0 auto 40px;
  line-height: 1.9;
}

/* ── Section ── */
.section {
  padding: 80px 0;
}
.section-title {
  font-size: 1.6rem;
  font-weight: 700;
  color: var(--color-text-heading);
  margin-bottom: 12px;
}
.section-subtitle {
  font-size: 0.9rem;
  color: var(--color-text-muted);
  margin-bottom: 48px;
}
.section-divider {
  width: 48px;
  height: 3px;
  background: var(--color-accent);
  border-radius: 2px;
  margin-bottom: 16px;
}

/* ── Cards ── */
.card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 24px;
}
.card {
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: 12px;
  padding: 32px;
  transition: background 0.2s, transform 0.2s;
}
.card:hover {
  background: var(--color-bg-card-hover);
  transform: translateY(-2px);
}
.card h3 {
  font-size: 1.1rem;
  color: var(--color-text-heading);
  margin-bottom: 12px;
}
.card p {
  font-size: 0.9rem;
  color: var(--color-text-muted);
  line-height: 1.7;
}
.card-icon {
  font-size: 1.8rem;
  margin-bottom: 16px;
}

/* ── Buttons ── */
.btn {
  display: inline-block;
  padding: 12px 32px;
  border-radius: 8px;
  font-size: 0.9rem;
  font-weight: 600;
  letter-spacing: 0.03em;
  transition: all 0.2s;
  cursor: pointer;
  border: none;
}
.btn-primary {
  background: var(--color-accent);
  color: #fff;
}
.btn-primary:hover {
  background: var(--color-accent-light);
  color: #fff;
}
.btn-outline {
  background: transparent;
  color: var(--color-accent-light);
  border: 1px solid var(--color-accent);
}
.btn-outline:hover {
  background: var(--color-accent);
  color: #fff;
}

/* ── FAQ ── */
.faq-item {
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: 12px;
  padding: 28px 32px;
  margin-bottom: 16px;
}
.faq-item h3 {
  font-size: 1rem;
  color: var(--color-accent-light);
  margin-bottom: 12px;
}
.faq-item h3::before {
  content: 'Q. ';
  color: var(--color-accent);
  font-weight: 700;
}
.faq-item p {
  font-size: 0.9rem;
  color: var(--color-text-muted);
  line-height: 1.8;
}
.faq-item p::before {
  content: 'A. ';
  color: var(--color-accent-light);
  font-weight: 700;
}

/* ── Timeline ── */
.timeline-item {
  position: relative;
  padding-left: 28px;
  margin-bottom: 36px;
  border-left: 2px solid var(--color-border);
}
.timeline-item::before {
  content: '';
  position: absolute;
  left: -6px;
  top: 4px;
  width: 10px;
  height: 10px;
  background: var(--color-accent);
  border-radius: 50%;
}
.timeline-item .year {
  font-size: 0.85rem;
  color: var(--color-accent-light);
  font-weight: 600;
  margin-bottom: 4px;
}
.timeline-item h3 {
  font-size: 1rem;
  color: var(--color-text-heading);
  margin-bottom: 6px;
}
.timeline-item p {
  font-size: 0.88rem;
  color: var(--color-text-muted);
}

/* ── Media List ── */
.media-item {
  display: flex;
  align-items: center;
  gap: 20px;
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: 12px;
  padding: 24px;
  margin-bottom: 16px;
  transition: background 0.2s;
}
.media-item:hover { background: var(--color-bg-card-hover); }
.media-item .media-icon {
  font-size: 2rem;
  flex-shrink: 0;
}
.media-item h3 {
  font-size: 0.95rem;
  color: var(--color-text-heading);
  margin-bottom: 4px;
}
.media-item p {
  font-size: 0.85rem;
  color: var(--color-text-muted);
}

/* ── Contact Form ── */
.form-group {
  margin-bottom: 20px;
}
.form-group label {
  display: block;
  font-size: 0.85rem;
  color: var(--color-text-muted);
  margin-bottom: 6px;
}
.form-group input,
.form-group textarea,
.form-group select {
  width: 100%;
  padding: 12px 16px;
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: 8px;
  color: var(--color-text);
  font-size: 0.9rem;
  font-family: var(--font-sans);
  transition: border-color 0.2s;
}
.form-group input:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--color-accent);
}

/* ── Footer ── */
.site-footer {
  border-top: 1px solid var(--color-border);
  padding: 40px 0;
  text-align: center;
  font-size: 0.8rem;
  color: var(--color-text-muted);
}
.footer-links {
  display: flex;
  justify-content: center;
  gap: 24px;
  margin-bottom: 16px;
}
.footer-links a {
  font-size: 0.82rem;
  color: var(--color-text-muted);
}

/* ── Responsive ── */
@media (max-width: 768px) {
  .hero h1 { font-size: 1.6rem; }
  .site-nav { display: none; }
  .site-nav.open {
    display: flex;
    flex-direction: column;
    position: absolute;
    top: 64px;
    left: 0;
    right: 0;
    background: rgba(11, 17, 32, 0.98);
    padding: 24px;
    gap: 16px;
    border-bottom: 1px solid var(--color-border);
  }
  .mobile-menu-btn { display: block; }
  .card-grid { grid-template-columns: 1fr; }
  .section { padding: 60px 0; }
  .media-item { flex-direction: column; text-align: center; }
}