/* Responsive breakpoints. Mobile-first: base styles target small phones. */

/* Large phones */
@media (min-width: 480px) {
  .hero__actions,
  .cta-banner__actions {
    flex-direction: row;
    justify-content: center;
  }
}

/* Tablets */
@media (min-width: 640px) {
  :root {
    --content-padding-inline: 1.5rem;
  }

  .grid--announcements,
  .grid--testimonials,
  .grid--winners,
  .grid--community-preview {
    grid-template-columns: repeat(2, 1fr);
  }

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

  .footer-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: var(--space-10);
  }

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

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

  .section {
    padding-block: var(--space-20);
  }
}

/* Small laptops */
@media (min-width: 768px) {
  .hero__grid {
    padding-block: var(--space-20);
  }

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

/* Desktop */
@media (min-width: 1024px) {
  :root {
    --content-padding-inline: 2rem;
  }

  .primary-nav {
    display: block;
  }

  .header-actions {
    display: flex;
  }

  .mobile-menu-toggle {
    display: none;
  }

  .mobile-menu {
    display: none !important;
  }

  .hero__grid {
    grid-template-columns: 1fr 1fr;
    padding-block: var(--space-24);
  }

  .hero__title {
    font-size: var(--font-size-4xl);
  }

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

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

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

  .semester-points {
    grid-template-columns: repeat(3, 1fr);
    max-width: none;
  }

  .timeline {
    display: grid;
    grid-template-columns: repeat(7, 1fr);
    max-width: none;
    gap: var(--space-4);
    position: relative;
  }

  .timeline::before {
    content: "";
    position: absolute;
    top: 1.375rem;
    left: 0;
    right: 0;
    height: 1px;
    background-color: var(--color-border);
  }

  .timeline-step {
    flex-direction: column;
    align-items: center;
    text-align: center;
    border-left: none;
    padding-left: 0;
    padding-bottom: 0;
    margin-left: 0;
  }

  .timeline-step__marker {
    position: relative;
    left: auto;
    margin-bottom: var(--space-3);
  }

  .footer-grid {
    grid-template-columns: 2fr repeat(4, 1fr);
  }

  /* Desktop keeps the full footer always expanded and non-collapsible -
     the accordion behavior below this breakpoint is a phone/small-screen
     space-saving affordance only. Overriding the child list's display is
     what neutralizes <details>'s native closed-state hiding regardless of
     the [open] attribute; this is standard, well-supported behavior across
     Chrome, Safari, Firefox, Edge, and Samsung Internet. */
  .footer-column {
    border: none;
  }

  .footer-column__title {
    cursor: default;
    pointer-events: none;
    padding-block: 0;
  }

  .footer-column__chevron {
    display: none;
  }

  .footer-column__list {
    display: flex !important;
    padding-bottom: 0;
    margin-top: var(--space-4);
  }

  .section-heading__title {
    font-size: var(--font-size-3xl);
  }

  .cta-banner__title {
    font-size: var(--font-size-3xl);
  }
}

/* Wide monitors */
@media (min-width: 1536px) {
  :root {
    --content-max-width: 88rem;
  }
}