/* ════════════════════════════════════════
   syz-rodend layout.css — top nav, footer, search modal
   ════════════════════════════════════════ */

/* ---------- Top Nav ---------- */
.syz-top-nav {
  position: sticky; top: 0; z-index: 100;
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border-hairline);
  height: 64px;
}
.syz-nav-inner {
  max-width: 1360px; margin: 0 auto; height: 100%; padding: 0 24px;
  display: flex; align-items: center; justify-content: space-between; gap: 20px;
}
.syz-brand-block { display: flex; align-items: center; gap: 12px; text-decoration: none; }
.syz-brand-mark {
  width: 28px; height: 28px; border: 2px solid var(--accent-blue);
  border-radius: 50%; display: flex; align-items: center; justify-content: center; position: relative; flex-shrink: 0;
}
.syz-brand-mark::after { content: ''; width: 8px; height: 8px; background: var(--accent-vermilion); border-radius: 50%; }
.syz-brand-title {
  font-family: var(--font-heading); font-size: 19px; font-weight: 800;
  color: var(--text-main); letter-spacing: -0.4px;
}
.syz-brand-title span { color: var(--accent-blue); }
.syz-brand-tag {
  font-family: var(--font-mono); font-size: 10.5px; font-weight: 600;
  color: var(--text-muted); background: var(--bg-subtle); border: 1px solid var(--border-hairline);
  padding: 2px 7px; border-radius: var(--radius-sm); letter-spacing: 0.5px; text-transform: uppercase;
  display: none;
}
@media (min-width: 850px) { .syz-brand-tag { display: inline-block; } }

.syz-nav-links { display: none; align-items: center; gap: 8px; list-style: none; margin: 0; padding: 0; }
@media (min-width: 960px) { .syz-nav-links { display: flex; } }
.syz-nav-link {
  font-family: var(--font-heading); font-size: 13.5px; font-weight: 600;
  color: var(--text-body); padding: 6px 12px; border-radius: var(--radius-md);
  transition: all 0.15s ease; display: flex; align-items: center; gap: 6px; text-decoration: none;
}
.syz-nav-link:hover { background: var(--bg-subtle); color: var(--text-main); }
.syz-nav-link.is-active { background: var(--accent-blue-light); color: var(--accent-blue); }
.syz-nav-link.is-active.accent-emerald { background: var(--accent-emerald-light); color: var(--accent-emerald); }

.syz-header-actions { display: flex; align-items: center; gap: 12px; }
.syz-search-trigger {
  display: flex; align-items: center; gap: 10px;
  background: #FFFFFF; border: 1px solid var(--border-hairline);
  color: var(--text-muted); font-size: 13px; padding: 7px 14px;
  border-radius: 20px; cursor: pointer; box-shadow: var(--shadow-subtle);
  font-family: var(--font-body);
}
.syz-search-trigger:hover { border-color: var(--border-medium); color: var(--text-main); }
.syz-kbd {
  font-family: var(--font-mono); font-size: 11px; background: var(--bg-subtle);
  border: 1px solid var(--border-hairline); padding: 2px 5px; border-radius: 4px; color: var(--text-muted);
}
.syz-mobile-toggle {
  display: flex; align-items: center; justify-content: center;
  width: 36px; height: 36px; border: 1px solid var(--border-hairline); border-radius: var(--radius-md);
  background: #FFFFFF; cursor: pointer;
}
@media (min-width: 960px) { .syz-mobile-toggle { display: none; } }

.syz-mobile-menu {
  display: none; position: fixed; inset: 64px 0 0 0; background: #FFFFFF; z-index: 99;
  overflow-y: auto; padding: 16px 24px 40px;
}
.syz-mobile-menu.is-open { display: block; }
.syz-mobile-menu a {
  display: block; padding: 12px 4px; font-family: var(--font-heading); font-weight: 600;
  font-size: 16px; color: var(--text-main); border-bottom: 1px solid var(--border-hairline);
}
@media (min-width: 960px) { .syz-mobile-menu { display: none !important; } }

/* ---------- Footer ---------- */
.syz-footer { background: #FFFFFF; border-top: 1px solid var(--border-hairline); padding: 60px 24px 30px 24px; margin-top: 60px; }
.syz-footer-inner { max-width: 1360px; margin: 0 auto; display: grid; grid-template-columns: 1fr; gap: 40px; }
@media (min-width: 850px) { .syz-footer-inner { grid-template-columns: 1.6fr 1fr 1fr; } }
.syz-footer-charter {
  background: var(--bg-subtle); border-left: 3px solid var(--accent-blue);
  padding: 14px 16px; border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  font-size: 12.5px; color: var(--text-body); line-height: 1.6; margin-top: 14px;
}
.syz-footer-heading {
  font-family: var(--font-heading); font-size: 14px; font-weight: 700;
  text-transform: uppercase; margin-bottom: 16px; letter-spacing: 0.4px;
}
.syz-footer-links { list-style: none; display: flex; flex-direction: column; gap: 10px; font-size: 13.5px; margin: 0; padding: 0; }
.syz-footer-links a { color: var(--text-muted); }
.syz-footer-links a:hover { color: var(--accent-blue); }
.syz-footer-bottom {
  max-width: 1360px; margin: 40px auto 0 auto; padding-top: 24px; border-top: 1px solid var(--border-hairline);
  display: flex; flex-wrap: wrap; gap: 8px; justify-content: space-between; font-size: 12.5px; color: var(--text-muted);
}

/* ---------- Search Modal (⌘K) ---------- */
.syz-search-overlay {
  display: none; position: fixed; inset: 0; background: rgba(15, 23, 42, 0.45);
  backdrop-filter: blur(4px); z-index: 999; align-items: flex-start; justify-content: center; padding-top: 90px;
}
.syz-search-overlay.is-active { display: flex; }
.syz-search-modal {
  width: 92%; max-width: 600px; background: #FFFFFF; border: 1px solid var(--border-hairline);
  border-radius: var(--radius-lg); box-shadow: var(--shadow-float); overflow: hidden;
}
.syz-search-bar { padding: 16px 20px; border-bottom: 1px solid var(--border-hairline); display: flex; align-items: center; gap: 12px; }
.syz-search-input { flex: 1; background: transparent; border: none; font-size: 16px; font-family: var(--font-body); color: var(--text-main); outline: none; }
.syz-search-results { max-height: 380px; overflow-y: auto; padding: 12px; display: flex; flex-direction: column; gap: 6px; }
.syz-search-result-row { padding: 10px 14px; border-radius: var(--radius-md); display: flex; justify-content: space-between; align-items: center; cursor: pointer; }
.syz-search-result-row:hover { background: var(--bg-subtle); }
.syz-code-tag { font-family: var(--font-mono); font-size: 12px; font-weight: 600; color: var(--accent-blue); background: var(--accent-blue-light); padding: 2px 6px; border-radius: 4px; margin-right: 8px; white-space: nowrap; }
.syz-search-empty { padding: 16px; text-align: center; color: var(--text-muted); font-size: 13px; }