/* ============================================================
   RESPONSIVE.CSS — Breakpoints & Mobile-first Adjustments
   Breakpoints: sm 640 / md 768 / lg 1024 / xl 1280 / 2xl 1440
   ============================================================ */

/* ========== XL (1280px) ========== */
@media (max-width: 1280px) {
  .footer__grid { grid-template-columns: 1.5fr 1fr 1fr 1fr; }
  .app-section__inner { gap: var(--space-10); }
}

/* ========== LG (1024px) ========== */
@media (max-width: 1024px) {

  :root { --header-height: 60px; }

  /* Header nav collapses */
  .nav-toggle { display: flex; }

  .nav {
    position: fixed;
    top: var(--header-height);
    left: 0;
    width: 280px;
    height: calc(100dvh - var(--header-height));
    background: var(--color-bg-2);
    border-right: 1px solid var(--color-border);
    overflow-y: auto;
    transform: translateX(-100%);
    transition: transform var(--transition-base);
    z-index: 999;
    padding: var(--space-4);
  }

  .nav.open { transform: translateX(0); }

  .nav__list { flex-direction: column; align-items: stretch; gap: 0; }

  .nav__link {
    padding: var(--space-3) var(--space-4);
    font-size: var(--text-base);
    justify-content: space-between;
    border-radius: var(--radius-md);
  }

  /* Inline dropdown on mobile */
  .dropdown {
    position: static;
    opacity: 1;
    visibility: visible;
    transform: none;
    box-shadow: none;
    background: var(--color-bg-3);
    border: none;
    border-left: 2px solid var(--color-border);
    border-radius: 0;
    margin-left: var(--space-4);
    display: none;
    padding: var(--space-2) 0;
  }

  .nav__item--dropdown.open .dropdown { display: block; }
  .nav__item--dropdown.open .icon-chevron { transform: rotate(180deg); }

  /* App section */
  .app-section__inner {
    grid-template-columns: 1fr;
    text-align: center;
  }
  .app-section__desc { margin-inline: auto; }
  .app-section__btns { justify-content: center; }
  .app-section__visual { display: none; }

  /* Footer */
  .footer__grid { grid-template-columns: 1fr 1fr; gap: var(--space-8); }
  .footer__col--brand { grid-column: 1 / -1; }

  /* Nav overlay */
  .nav-overlay {
    position: fixed;
    inset: 0;
    top: var(--header-height);
    background: rgba(0,0,0,.6);
    z-index: 998;
    display: none;
  }
  .nav-overlay.open { display: block; }
}

/* ========== MD (768px) ========== */
@media (max-width: 768px) {

  :root {
    --space-12: 40px;
    --space-16: 52px;
    --space-20: 64px;
  }

  /* Hero */
  .hero { height: min(80vh, 560px); }
  .hero__title { letter-spacing: -0.025em; }
  .hero__subtitle { font-size: var(--text-base); }
  .hero__actions { flex-direction: column; align-items: flex-start; }
  .hero__btn { width: 40px; height: 40px; }
  .hero__btn--prev { left: var(--space-3); }
  .hero__btn--next { right: var(--space-3); }

  /* Header right — hide register btn */
  .header__right .btn--ghost { display: none; }

  /* Section titles */
  .section__title { font-size: var(--text-xl); }

  /* Live cards */
  .cards-grid--live { grid-template-columns: 1fr 1fr; }

  /* Tab filter — scroll on mobile */
  .tab-filter {
    overflow-x: auto;
    scrollbar-width: none;
    -webkit-overflow-scrolling: touch;
    flex-wrap: nowrap;
  }
  .tab-filter::-webkit-scrollbar { display: none; }

  /* Pricing */
  .pricing-grid { grid-template-columns: 1fr; max-width: 380px; margin-inline: auto; }

  /* Footer */
  .footer__grid { grid-template-columns: 1fr 1fr; }
  .footer__bottom { flex-direction: column; gap: var(--space-2); text-align: center; }

  /* Section header wrap */
  .section__header { gap: var(--space-3); }
  .section__header .tab-filter { order: 3; width: 100%; }

  /* Channels */
  .channels-grid { grid-template-columns: repeat(4, 1fr); }

  /* App section */
  .app-section__title { font-size: var(--text-3xl); }
  .app-section__btns { gap: var(--space-2); }
  .app-btn { padding: var(--space-2) var(--space-4); font-size: var(--text-xs); }
}

/* ========== SM (640px) ========== */
@media (max-width: 640px) {

  :root {
    --container-pad: 16px;
    --space-8: 28px;
    --space-10: 36px;
    --space-12: 32px;
  }

  /* Hero */
  .hero { height: min(75vh, 480px); }
  .hero__content { padding-top: var(--space-6); }
  .hero__meta { gap: var(--space-3); }
  .hero__actions .btn--lg { padding: var(--space-3) var(--space-5); font-size: var(--text-sm); }

  /* Ticker */
  .ticker-bar__label span:last-child { display: none; }

  /* Live cards */
  .cards-grid--live { grid-template-columns: 1fr; }

  /* Content cards */
  .card--content { width: 150px; }

  /* Channels */
  .channels-grid { grid-template-columns: repeat(3, 1fr); gap: var(--space-3); }
  .channel-card { padding: var(--space-3); }
  .channel-card__logo { width: 44px; height: 44px; }

  /* Footer */
  .footer__grid { grid-template-columns: 1fr; gap: var(--space-6); }

  /* Header */
  .header__right { gap: var(--space-2); }
  .search-btn { display: flex; }

  /* Hero search */
  .search-overlay { padding-top: var(--space-16); }
  .search-input { font-size: var(--text-lg); padding: var(--space-3) var(--space-5); }

  /* Page hero */
  .page-hero { padding: var(--space-10) 0 var(--space-8); }
  .page-hero__title { font-size: var(--text-2xl); }

  /* Pricing */
  .pricing-card { padding: var(--space-6); }
  .pricing-card__amount { font-size: var(--text-3xl); }
}

/* ========== XS (400px) ========== */
@media (max-width: 400px) {
  .hero { height: min(72vh, 420px); }
  .hero__actions { gap: var(--space-2); }
  .hero__actions .btn { font-size: var(--text-xs); padding: var(--space-2) var(--space-4); }

  .channels-grid { grid-template-columns: repeat(2, 1fr); }
  .tab-btn { padding: var(--space-2) var(--space-3); font-size: var(--text-xs); }

  .footer__socials { gap: var(--space-2); }
  .social-icon { width: 32px; height: 32px; }
}

/* ========== Hover media query (touch devices) ========== */
@media (hover: none) {
  .card:hover { transform: none; }
  .btn--primary:hover { transform: none; }
  .league-card:hover { transform: none; }
  .channel-card:hover { transform: none; }
  .pricing-card:hover { transform: none; }
}

/* ========== Reduced motion ========== */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: .01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: .01ms !important;
  }
  html { scroll-behavior: auto; }
  .ticker-bar__track { animation: none; }
  .hero__bg-image { transition: none; }
}

/* ========== Print ========== */
@media print {
  .header, .hero, .ticker-bar, .footer, .btn, .hero__btn { display: none !important; }
  body { background: #fff; color: #000; }
  .section { padding: 16px 0; }
}

/* ========== Dark mode is default, but respect system light if needed ========== */
@media (prefers-color-scheme: light) {
  /* Site is dark-only by design — no light override needed */
}