/* Header */
.su-header {
  position: sticky;
  top: 0;
  z-index: 50;
  height: var(--su-header-h);
  background: rgba(255, 255, 255, 0.88);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--su-border);
}

.su-header__inner {
  height: 100%;
  display: flex;
  align-items: center;
  gap: 20px;
}

.su-logo {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-weight: 800;
  font-size: 1.05rem;
  letter-spacing: -0.03em;
  color: var(--su-text);
  flex-shrink: 0;
}

.su-logo:hover {
  color: var(--su-text);
}

.su-logo__mark {
  width: 28px;
  height: 28px;
  border-radius: 8px;
  background: linear-gradient(135deg, var(--su-accent), var(--su-accent-deep));
  color: #fff;
  display: grid;
  place-items: center;
  font-size: 0.85rem;
}

.su-nav {
  display: flex;
  align-items: center;
  gap: 4px;
  flex: 1;
  overflow-x: auto;
  scrollbar-width: none;
  -ms-overflow-style: none;
}

.su-nav::-webkit-scrollbar {
  display: none;
}

.su-nav a,
.su-nav .menu-item > a {
  display: inline-block;
  padding: 8px 10px;
  border-radius: 8px;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--su-text-muted);
  white-space: nowrap;
}

.su-nav a:hover,
.su-nav .current-menu-item > a,
.su-nav .current_page_item > a {
  color: var(--su-accent-deep);
  background: var(--su-accent-soft);
}

.su-nav ul {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  gap: 2px;
}

.su-header__tools {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-shrink: 0;
  margin-left: auto;
}

.su-search {
  width: 160px;
}

@media (max-width: 980px) {
  .su-search {
    display: none;
  }
}

.su-cta-mini {
  display: none;
}

@media (min-width: 1100px) {
  .su-cta-mini {
    display: inline-flex;
  }
}

.su-menu-toggle {
  display: none;
  border: 1px solid var(--su-border);
  background: var(--su-surface);
  border-radius: 8px;
  width: 40px;
  height: 40px;
  align-items: center;
  justify-content: center;
  cursor: pointer;
}

@media (max-width: 860px) {
  .su-menu-toggle {
    display: inline-flex;
  }

  .su-nav {
    display: none;
    position: absolute;
    left: 0;
    right: 0;
    top: var(--su-header-h);
    background: var(--su-surface);
    border-bottom: 1px solid var(--su-border);
    padding: 12px var(--su-gutter) 16px;
    flex-direction: column;
    align-items: stretch;
    overflow: visible;
  }

  .su-nav.is-open {
    display: flex;
  }

  .su-nav ul {
    flex-direction: column;
  }

  .su-nav a {
    padding: 12px 10px;
  }
}

/* Main */
.su-main {
  padding: 28px 0 64px;
  min-height: calc(100vh - var(--su-header-h) - 120px);
}

.su-section {
  margin-bottom: 36px;
}

.su-section__head {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 16px;
}

.su-section__title {
  margin: 0;
  font-size: 1.15rem;
  font-weight: 800;
  letter-spacing: -0.02em;
}

.su-section__desc {
  margin: 4px 0 0;
  font-size: 0.85rem;
  color: var(--su-text-muted);
}

.su-section__link {
  font-size: 0.82rem;
  font-weight: 700;
  white-space: nowrap;
}

/* Hero band (home hub — not marketing landing) */
.su-hub {
  display: grid;
  gap: 16px;
  margin-bottom: 28px;
}

.su-hub__banner {
  background: linear-gradient(120deg, #ffffff 0%, var(--su-accent-soft) 100%);
  border: 1px solid var(--su-border);
  border-radius: var(--su-radius-lg);
  padding: 22px 22px 20px;
  box-shadow: var(--su-shadow);
}

.su-hub__eyebrow {
  margin: 0 0 6px;
  font-size: 0.75rem;
  font-weight: 700;
  color: var(--su-accent);
  letter-spacing: 0.04em;
}

.su-hub__title {
  margin: 0 0 8px;
  font-size: clamp(1.35rem, 3vw, 1.75rem);
  font-weight: 800;
  letter-spacing: -0.03em;
}

.su-hub__text {
  margin: 0 0 16px;
  color: var(--su-text-muted);
  max-width: 42em;
}

.su-reading-box {
  background: var(--su-surface);
  border: 1px solid var(--su-border);
  border-radius: var(--su-radius);
  padding: 16px;
  box-shadow: var(--su-shadow-sm);
}

.su-reading-box h2 {
  margin: 0 0 10px;
  font-size: 0.95rem;
}

.su-reading-hint {
  margin: 8px 0 0;
  font-size: 0.75rem;
  color: var(--su-text-subtle);
}

/* Template page shell */
.su-page-head {
  margin-bottom: 22px;
}

.su-page-head h1 {
  margin: 0 0 8px;
  font-size: clamp(1.4rem, 3vw, 1.85rem);
  font-weight: 800;
  letter-spacing: -0.03em;
}

.su-page-head p {
  margin: 0;
  color: var(--su-text-muted);
}

.su-template-note {
  margin-top: 24px;
  padding: 12px 14px;
  border-left: 3px solid var(--su-accent);
  background: var(--su-accent-soft);
  border-radius: 0 var(--su-radius-sm) var(--su-radius-sm) 0;
  font-size: 0.8rem;
  color: var(--su-accent-deep);
}

/* Dictionary entry */
.su-dict {
  background: var(--su-surface);
  border: 1px solid var(--su-border);
  border-radius: var(--su-radius);
  padding: 28px 24px;
  box-shadow: var(--su-shadow);
}

.su-dict__keyword {
  margin: 0 0 6px;
  font-size: 1.6rem;
  font-weight: 800;
}

.su-dict__def {
  margin: 0 0 18px;
  font-size: 1.05rem;
  color: var(--su-text-muted);
}

.su-dict__body {
  font-size: 0.95rem;
  line-height: 1.75;
}

/* Footer */
.su-footer {
  border-top: 1px solid var(--su-border);
  background: var(--su-surface);
  padding: 28px 0;
  color: var(--su-text-muted);
  font-size: 0.8rem;
}

.su-footer__inner {
  display: flex;
  flex-wrap: wrap;
  gap: 12px 24px;
  justify-content: space-between;
  align-items: center;
}

.su-footer a {
  color: var(--su-text-muted);
  font-weight: 600;
}

.su-footer a:hover {
  color: var(--su-accent);
}

.su-footer__links {
  display: flex;
  gap: 14px;
  flex-wrap: wrap;
}