/* sections.css */

/* ── Section nav strip ── */
#section-nav {
  position: fixed;
  top: var(--topbar-h);
  left: 0; right: 0;
  height: var(--secnav-h);
  background: var(--white);
  border-bottom: 1px solid var(--border);
  z-index: 290;
  overflow: hidden;
}

#section-nav-inner {
  display: flex;
  align-items: center;
  height: 100%;
  overflow-x: auto;
  scrollbar-width: none;
  padding: 0 10px;
  gap: 0;
}
#section-nav-inner::-webkit-scrollbar { display: none; }

#tab-indicator {
  position: absolute;
  bottom: 0;
  height: 2.5px;
  border-radius: 2px;
  background: var(--active);
  transition: left 0.3s var(--ease-slide), width 0.3s var(--ease-slide), background 0.25s;
}

.sec-tab {
  font-family: var(--font-ui);
  font-size: 0.68rem;
  font-weight: 700;
  letter-spacing: 0.07em;
  text-transform: uppercase;
  color: var(--mid);
  padding: 6px 12px;
  border-radius: 6px;
  white-space: nowrap;
  flex-shrink: 0;
  transition: color 0.2s;
}

.sec-tab[data-section="news"].active      { color: var(--c-news); }
.sec-tab[data-section="sports"].active    { color: var(--c-sports); }
.sec-tab[data-section="politics"].active  { color: var(--c-politics); }
.sec-tab[data-section="celeb"].active     { color: var(--c-celeb); }
.sec-tab[data-section="music"].active     { color: var(--c-music); }
.sec-tab[data-section="health"].active    { color: var(--c-health); }
.sec-tab[data-section="money"].active     { color: var(--c-money); }
.sec-tab[data-section="lifestyle"].active { color: var(--c-lifestyle); }
.sec-tab[data-section="science"].active   { color: var(--c-science); }

/* ── Pages track ── */
#pages-track {
  position: fixed;
  left: 0;
  top: calc(var(--topbar-h) + var(--secnav-h) + var(--subnav-h));
  bottom: 0;
  display: flex;
  width: 900vw;
  transition: transform 0.38s var(--ease-slide);
  will-change: transform;
}

.page {
  width: 100vw;
  height: 100%;
  overflow-y: auto;
  overflow-x: hidden;
  -webkit-overflow-scrolling: touch;
  background: var(--bg);
  padding-bottom: 48px;
}

/* Section color var per page */
.page[data-section="news"]      { --sc: var(--c-news); }
.page[data-section="sports"]    { --sc: var(--c-sports); }
.page[data-section="politics"]  { --sc: var(--c-politics); }
.page[data-section="celeb"]     { --sc: var(--c-celeb); }
.page[data-section="music"]     { --sc: var(--c-music); }
.page[data-section="health"]    { --sc: var(--c-health); }
.page[data-section="money"]     { --sc: var(--c-money); }
.page[data-section="lifestyle"] { --sc: var(--c-lifestyle); }
.page[data-section="science"]   { --sc: var(--c-science); }