/* =====================================================================
   $INVENTO — The Little Elon
   responsive.css — Breakpoint overrides
   Base layout lives in style.css (desktop-first grids); this file
   collapses those grids and adapts the navbar/hero/dashboard down to
   tablet and mobile. Pairs with app.js nav toggle (.is-open) and the
   [data-nav-menu] / [data-nav-toggle] markup in the navbar.
   ===================================================================== */

/* ---------------------------------------------------------------------
   BREAKPOINT: ≤1100px — large tablet / small laptop
   --------------------------------------------------------------------- */
@media (max-width: 1100px) {
  :root {
    --container-pad: 20px;
  }

  section { padding: 80px var(--container-pad); }

  .navbar__menu { gap: 22px; }

  .pillars__grid,
  .values__grid {
    grid-template-columns: repeat(3, 1fr);
    gap: 18px;
  }

  .metrics-grid {
    grid-template-columns: repeat(4, 1fr);
  }

  .dash-teaser,
  .story__grid {
    gap: 40px;
  }
}

/* ---------------------------------------------------------------------
   BREAKPOINT: ≤960px — tablet / nav collapse
   --------------------------------------------------------------------- */
@media (max-width: 960px) {
  :root {
    --navbar-h: 72px;
  }

  /* --- Navbar: switch to mobile toggle + slide-down menu --- */
  .navbar__toggle {
    display: flex;
    order: 3;
  }

  .navbar__menu {
    position: fixed;
    top: var(--navbar-h);
    left: 0;
    right: 0;
    z-index: 999;
    flex-direction: column;
    align-items: stretch;
    gap: 4px;
    margin: 0;
    padding: 16px var(--container-pad) 28px;
    background: rgba(10, 10, 15, 0.96);
    backdrop-filter: blur(20px) saturate(140%);
    -webkit-backdrop-filter: blur(20px) saturate(140%);
    border-bottom: 1px solid var(--border-soft);
    transform: translateY(-12px);
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
    transition: transform var(--dur-med) var(--ease-out),
                opacity var(--dur-med) var(--ease-out),
                visibility var(--dur-med) var(--ease-out);
  }

  .navbar__menu.is-open {
    transform: translateY(0);
    opacity: 1;
    visibility: visible;
    pointer-events: auto;
  }

  .navbar__menu a {
    padding: 14px 6px;
    border-bottom: 1px solid var(--border-soft);
    font-size: 16px;
  }

  .navbar__menu a::after { display: none; }
  .navbar__menu a:last-of-type { border-bottom: none; }

  .navbar__cta {
    margin-top: 10px;
    text-align: center;
    justify-content: center;
  }

  .navbar__socials { order: 2; }

  /* Toggle → close (X) icon state */
  .navbar__toggle[aria-expanded="true"] span:nth-child(1) {
    transform: translateY(7px) rotate(45deg);
  }
  .navbar__toggle[aria-expanded="true"] span:nth-child(2) {
    opacity: 0;
  }
  .navbar__toggle[aria-expanded="true"] span:nth-child(3) {
    transform: translateY(-7px) rotate(-45deg);
  }

  /* --- Grids collapse to 2-up --- */
  .pillars__grid,
  .values__grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .story__grid {
    grid-template-columns: 1fr;
  }

  .story__image { max-width: 420px; margin: 0 auto; }

  .dash-teaser {
    grid-template-columns: 1fr;
  }

  .dash-teaser__copy { text-align: center; }
  .dash-teaser__copy .btn { margin: 0 auto; }

  .metrics-grid {
    grid-template-columns: repeat(3, 1fr);
  }

  .dashboard__row {
    grid-template-columns: 1fr;
  }

  .panel--chart { min-height: 340px; }
}

/* ---------------------------------------------------------------------
   BREAKPOINT: ≤768px — mobile landscape / small tablet
   --------------------------------------------------------------------- */
@media (max-width: 768px) {
  section { padding: 64px var(--container-pad); }

  .section-head { margin-bottom: 40px; }

  .hero {
    padding: calc(var(--navbar-h) + 24px) var(--container-pad) 60px;
    min-height: auto;
    padding-bottom: 100px;
  }

  .hero__actions {
    flex-direction: column;
    align-items: stretch;
  }

  .hero__actions .btn { width: 100%; }

  .page-hero { min-height: 38vh; }

  .pillars__grid,
  .values__grid {
    grid-template-columns: 1fr;
  }

  .cta-banner {
    padding: 56px var(--container-pad);
  }

  .cta-banner__actions {
    flex-direction: column;
    align-items: stretch;
  }

  .cta-banner__actions .btn { width: 100%; }

  .about-teaser__inner { padding: 36px 24px; }

  .roadmap__item { padding-left: 36px; }

  /* --- Dashboard --- */
  .dashboard { padding-top: calc(var(--navbar-h) + 32px); }

  .dashboard__head {
    flex-direction: column;
    align-items: flex-start;
  }

  .dashboard__head .btn--refresh { width: 100%; justify-content: center; }

  .price-panel {
    flex-direction: column;
    align-items: stretch;
    text-align: center;
  }

  .price-panel__main { align-items: center; }

  .price-panel__changes {
    justify-content: center;
  }

  .metrics-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .dex-links {
    flex-direction: column;
  }

  .dex-links .btn { width: 100%; }

  .tax-row { flex-direction: column; gap: 12px; }

  /* --- Footer --- */
  .footer__inner {
    flex-direction: column;
    align-items: flex-start;
    gap: 24px;
  }

  .footer__links {
    flex-wrap: wrap;
    gap: 16px 24px;
  }
}

/* ---------------------------------------------------------------------
   BREAKPOINT: ≤480px — mobile portrait
   --------------------------------------------------------------------- */
@media (max-width: 480px) {
  :root {
    --navbar-h: 64px;
  }

  body { font-size: 15px; }

  .navbar__inner { gap: 12px; }

  .navbar__name em { display: none; }

  .navbar__logo { width: 34px; height: 34px; }

  .hero__title { gap: 2px; }

  .hero__ticker {
    font-size: 12px;
    text-align: left;
    padding: 10px 14px;
  }

  .hero__ticker span:last-child {
    white-space: normal;
  }

  .metrics-grid {
    grid-template-columns: 1fr 1fr;
    gap: 12px;
  }

  .metric-card { padding: 16px; }
  .metric-card strong { font-size: 17px; }

  .price-panel__value { font-size: 34px; }

  .change-pill {
    flex: 1;
    min-width: 0;
    padding: 10px 8px;
  }

  .panel { padding: 20px; }

  .panel--chart { min-height: 280px; }
  .chart-frame { min-height: 240px; }

  .empty-state {
    padding: 40px 24px;
    margin: 24px auto;
  }

  .footer { padding-top: 40px; }

  .footer__bottom { padding: 20px var(--container-pad) 24px; }
}

/* ---------------------------------------------------------------------
   BREAKPOINT: ≥1440px — large desktop refinement
   --------------------------------------------------------------------- */
@media (min-width: 1440px) {
  :root {
    --container-max: 1320px;
  }

  .hero__content { max-width: 840px; }
}

/* ---------------------------------------------------------------------
   ACCESSIBILITY: reduced motion
   (app.js also feature-detects this for particles/parallax/GSAP; this
   covers pure-CSS transitions/animations not gated in JS)
   --------------------------------------------------------------------- */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
}