/* Alt sayfa ortak stilleri */
.subpage {
  max-width: 880px;
  margin: 0 auto;
  padding: 80px var(--pad-x) 120px;
}
.subpage .eyebrow { margin-bottom: 24px; }
.subpage h1 {
  font-size: clamp(40px, 5.5vw, 64px);
  font-weight: 600;
  letter-spacing: -0.035em;
  line-height: 1.05;
  margin: 0 0 24px;
}
.subpage h1 .serif {
  font-family: var(--font-serif);
  font-style: italic;
  font-weight: 400;
}
.subpage h2 {
  font-size: 28px;
  font-weight: 600;
  letter-spacing: -0.02em;
  margin: 48px 0 16px;
}
.subpage h3 {
  font-size: 18px;
  font-weight: 600;
  margin: 24px 0 8px;
}
.subpage p, .subpage li {
  font-size: 17px;
  line-height: 1.65;
  color: var(--ink-2);
}
.subpage .lead {
  font-size: 21px;
  color: var(--ink-2);
  margin-bottom: 40px;
  max-width: 720px;
}
.subpage ul {
  padding-left: 22px;
  margin: 16px 0;
}
.subpage li { margin-bottom: 10px; }
.subpage a { color: var(--accent-ink); }

.sub-mini-header {
  position: sticky;
  top: 0;
  z-index: 50;
  backdrop-filter: blur(14px) saturate(140%);
  background: oklch(from var(--bg) l c h / 0.78);
  border-bottom: 1px solid oklch(from var(--border) l c h / 0.6);
}
.sub-mini-header-inner {
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 var(--pad-x);
  height: 68px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.sub-footer {
  border-top: 1px solid var(--border);
  padding: 40px var(--pad-x);
  text-align: center;
  color: var(--muted);
  font-size: 13px;
}
.sub-footer a { color: var(--muted); margin: 0 12px; }

.card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 16px;
  margin: 32px 0;
}
.feature-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 22px;
}
.feature-card .icon {
  width: 36px; height: 36px;
  border-radius: 8px;
  background: var(--accent-soft);
  color: var(--accent-ink);
  display: grid; place-items: center;
  font-weight: 700;
  margin-bottom: 12px;
}
.feature-card h4 {
  margin: 0 0 6px;
  font-size: 16px;
}
.feature-card p {
  margin: 0;
  font-size: 14px;
  color: var(--muted);
}

@media (max-width: 720px) {
  .subpage { padding: 48px var(--pad-x) 80px; }
  .subpage h1 { font-size: 32px; }
  .subpage h2 { font-size: 22px; margin: 36px 0 12px; }
  .subpage p, .subpage li { font-size: 16px; }
  .sub-mini-header-inner { height: 56px; }
}