/* ==============================================================
   HelloReader · Mobile responsive overrides
   Targets: inline-style React sections. `!important` is required
   to defeat React inline style specificity.
   Breakpoints: 980 (tablet) · 720 (large phone) · 520 (small phone)
   ============================================================== */

/* ---------- TopNav: hamburger menu ---------- */
.topnav-hamburger { display: none; }
@media (max-width: 840px) {
  .topnav .topnav-links    { display: none !important; }
  .topnav .topnav-cta      { display: none !important; }
  .topnav .topnav-hamburger{ display: inline-flex !important; align-items: center; justify-content: center; }
  .topnav-overlay[data-open="true"] { display: block !important; }
  .topnav-inner { padding: 12px 20px !important; gap: 12px !important; }
}

/* ---------- Global section padding ---------- */
@media (max-width: 980px) {
  main section[id] > div:first-of-type,
  main div[data-screen-label] > div:first-of-type {
    padding-left: 24px !important;
    padding-right: 24px !important;
  }
  .topnav-inner { padding-left: 20px !important; padding-right: 20px !important; }
}
@media (max-width: 640px) {
  main section[id] > div:first-of-type,
  main div[data-screen-label] > div:first-of-type {
    padding-top: 72px !important;
    padding-bottom: 72px !important;
    padding-left: 18px !important;
    padding-right: 18px !important;
  }
}

/* ---------- Headline scale ---------- */
@media (max-width: 980px) {
  #top h1          { font-size: 60px !important; }
  section h2,
  #partners h2,
  #slogans h2      { font-size: 44px !important; line-height: 1.06 !important; }
  #product h2      { font-size: 52px !important; }
  section p        { font-size: 17px !important; }
}
@media (max-width: 640px) {
  #top h1          { font-size: 40px !important; letter-spacing: -0.025em !important; }
  section h2,
  #partners h2,
  #slogans h2      { font-size: 34px !important; }
  #product h2      { font-size: 40px !important; }
  #contact h2      { font-size: 34px !important; }
  section p,
  #partners p      { font-size: 15px !important; line-height: 1.6 !important; }
}

/* ---------- Hero specifics ---------- */
@media (max-width: 980px) {
  #top > div:first-of-type { padding-top: 80px !important; padding-bottom: 60px !important; }
}
@media (max-width: 720px) {
  .hero-stats { grid-template-columns: 1fr 1fr !important; gap: 28px !important; margin-top: 56px !important; padding-top: 32px !important; }
  .hero-stats > div > div:first-child { font-size: 30px !important; }
}

/* ---------- About: 2→1 ---------- */
@media (max-width: 880px) {
  .about-grid { grid-template-columns: 1fr !important; gap: 20px !important; margin-top: 36px !important; }
  .about-grid > div { padding: 28px !important; }
}

/* ---------- Product: 2→1 (stack image below) ---------- */
@media (max-width: 980px) {
  .product-grid {
    grid-template-columns: 1fr !important;
    gap: 48px !important;
    padding-top: 80px !important;
    padding-bottom: 80px !important;
    padding-left: 24px !important;
    padding-right: 24px !important;
  }
}
@media (max-width: 640px) {
  .product-grid { padding: 60px 18px !important; gap: 36px !important; }
  .product-grid ul li { font-size: 14px !important; }
}

/* ---------- Content tracks: 2→1 ---------- */
@media (max-width: 880px) {
  .content-tracks { grid-template-columns: 1fr !important; gap: 16px !important; }
}

/* ---------- Featured Titles ----------
   Desktop (≥900px): show all 4 market columns, hide tabs
   Mobile (<900px):  show tab bar, display only the active market column
*/
.featured-tabs { display: none; }

@media (max-width: 1024px) {
  .featured-grid { grid-template-columns: repeat(2, 1fr) !important; gap: 14px !important; }
}
@media (max-width: 900px) {
  .featured-tabs { display: flex !important; }
  .featured-grid {
    grid-template-columns: 1fr !important;
    gap: 0 !important;
    margin-top: 16px !important;
  }
  .featured-col { display: none; }
  .featured-col[data-active="true"] { display: block; animation: featured-fade 260ms var(--ease-out, ease-out); }
}
@keyframes featured-fade {
  from { opacity: 0; transform: translateY(6px); }
  to   { opacity: 1; transform: none; }
}

/* ---------- Partners: side-by-side → stacked ---------- */
@media (max-width: 880px) {
  .partners-card { grid-template-columns: 1fr !important; }
  .partners-card > div:first-child {
    border-right: none !important;
    border-bottom: 1px solid #EFEFEF;
    padding: 28px !important;
  }
  .partners-card > form { padding: 28px !important; }
  .form-row { grid-template-columns: 1fr !important; gap: 12px !important; }
}

/* ---------- Contact card: 2→1 ---------- */
@media (max-width: 880px) {
  .contact-card {
    grid-template-columns: 1fr !important;
    padding: 40px !important;
    gap: 32px !important;
  }
}
@media (max-width: 640px) {
  .contact-card { padding: 32px 24px !important; border-radius: 20px !important; }
}

/* ---------- Footer: 5→2→1 ---------- */
@media (max-width: 900px) {
  .footer-cols {
    grid-template-columns: 1fr 1fr !important;
    gap: 32px !important;
  }
  .footer-cols > div:first-child { grid-column: 1 / -1; }
}
@media (max-width: 560px) {
  .footer-cols { grid-template-columns: 1fr !important; gap: 28px !important; }
  .site-footer { padding: 40px 20px 28px !important; }
  .footer-bottom { font-size: 11px !important; }
  .footer-bottom > span:last-child { font-size: 11px !important; opacity: 0.8; }
}

/* ---------- Global Roadmap band ---------- */
@media (max-width: 980px) {
  .global-band { padding: 60px 24px !important; }
  .global-band-title { font-size: 48px !important; }
  .global-band-grid { grid-template-columns: repeat(3, 1fr) !important; gap: 10px !important; }
}
@media (max-width: 640px) {
  .global-band { padding: 52px 18px !important; }
  .global-band-title { font-size: 36px !important; line-height: 1.05 !important; }
  .global-band-sub { font-size: 15px !important; }
  .global-band-grid { grid-template-columns: repeat(2, 1fr) !important; margin-top: 28px !important; }
  .global-band-grid > div { padding: 14px 12px !important; }
  .global-band-grid > div > div:nth-child(2) { font-size: 15px !important; }
}
@media (max-width: 360px) {
  .global-band-title { font-size: 30px !important; }
  .global-band-grid { grid-template-columns: 1fr 1fr !important; }
}

/* ---------- Slogans section (big yellow band) ---------- */
@media (max-width: 640px) {
  #slogans h2 { font-size: 32px !important; }
  /* Each slogan row becomes stacked on phones */
  #slogans > div > div > div[style*="grid"] {
    grid-template-columns: 1fr !important;
    gap: 10px !important;
    padding: 20px 22px !important;
  }
  #slogans > div > div > div > div:last-child { text-align: left !important; }
}

/* ---------- Product phones: single phone, centered, no tilt on mobile ---------- */
@media (max-width: 720px) {
  .product-phones { gap: 0 !important; max-width: 100%; }
  .product-phones > div:nth-child(2) { display: none !important; }
  .product-phones > div:first-child > div:first-child {
    transform: none !important;
    width: min(300px, 78vw) !important;
  }
  .product-phones > div:first-child > div:first-child img {
    width: 100% !important;
  }
}

/* ---------- Content data row (catalog+year split) ---------- */
@media (max-width: 640px) {
  #content > div:first-of-type > div:last-of-type > div { padding: 20px !important; }
}

/* ---------- Prevent horizontal scroll ---------- */
html, body { overflow-x: hidden; max-width: 100vw; }
* { min-width: 0; }

/* ---------- Buttons on mobile: wrap gracefully ---------- */
@media (max-width: 640px) {
  a[href^="#"][style*="padding: 16px 28px"] { padding: 14px 20px !important; font-size: 14px !important; }
}