/* ==========================================================================
   AviPair — Responsive Styles
   Media queries only. Breakpoints cover 320px → 1920px+.
   ========================================================================== */

/* Breakpoint reference
   xs:  320px
   sm:  480px
   md:  768px
   lg:  1024px
   xl:  1280px
   2xl: 1440px
   3xl: 1920px
*/

/* --------------------------------------------------------------------------
   Base mobile-first tweaks (< 480px)
   -------------------------------------------------------------------------- */

@media (max-width: 479.98px) {
  :root {
    --gutter: var(--space-4);
    --section-y: var(--space-8);
    --fs-4xl: 2.25rem;
    --fs-3xl: 1.875rem;
    --fs-2xl: 1.5rem;
  }

  .btn {
    width: 100%;
  }

  .btn--light,
  .btn--outline-light {
    width: auto;
  }

  .grid-2,
  .grid-3,
  .grid-4 {
    grid-template-columns: 1fr;
  }

  .content-wrap,
  .mission__inner,
  .events__inner,
  .events__viewport,
  .product-preview__inner,
  .how__inner,
  .causes__inner,
  .sponsor__inner,
  .testimonial__inner,
  .cta__inner,
  .blog__inner,
  .team__inner,
  .site-footer__inner,
  .video__track,
  .video__copy {
    padding-inline: 1rem;
  }

  .mission {
    padding-block: 3.5rem;
  }

  .mission__image {
    height: 12rem;
  }

  .events {
    padding-block: 3.5rem;
  }

  .events__header {
    margin-bottom: 2rem;
  }

  .event-card {
    flex-basis: min(20rem, 85vw);
    max-width: min(20rem, 85vw);
  }

  .event-card__image {
    height: 12rem;
  }

  .event-card__meta {
    flex-wrap: wrap;
  }

  .slider-nav__btn {
    width: 2.75rem;
    height: 2.75rem;
  }

  .video {
    padding-block: 3.5rem;
  }

  .video__track {
    gap: 0.75rem;
  }

  .video__side {
    height: 12rem;
  }

  .video__image {
    height: 14rem;
  }

  .video__play {
    width: 3.25rem;
    height: 3.25rem;
  }

  .video__copy {
    margin-top: 1.5rem;
  }

  .how {
    padding-block: 3.5rem;
  }

  .how__header {
    margin-bottom: 2.5rem;
  }

  .how__subtitle {
    max-width: none;
    text-align: left;
  }

  .steps {
    grid-template-columns: 1fr;
    gap: 2rem;
  }

  .steps::before {
    display: none;
  }

  .step__number {
    width: 4rem;
    height: 4rem;
  }

  .causes {
    padding-block: 3.5rem;
  }

  .causes__inner {
    grid-template-columns: 1fr;
    gap: 2rem;
  }

  .causes__intro {
    flex-direction: column;
    align-items: flex-start;
    gap: 1.5rem;
  }

  .causes__intro-top {
    max-width: none;
  }

  .causes__text {
    max-width: none;
    text-align: left;
  }

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

  .cause-card {
    padding: 1.25rem 1.5rem;
  }

  .testimonial {
    padding-block: 3.5rem;
  }

  .testimonial__top {
    flex-direction: column;
    align-items: flex-start;
    gap: 1.5rem;
    margin-bottom: 2rem;
  }

  .testimonial__panel {
    grid-template-columns: 1fr;
    gap: 1.5rem;
  }

  .testimonial__image {
    min-height: 18rem;
    max-height: 22rem;
  }

  .cta {
    padding-block: 3.5rem;
  }

  .cta__panel {
    min-height: 28rem;
    border-radius: 1rem;
  }

  .cta__content {
    flex-direction: column;
    align-items: flex-start;
    padding: 2rem;
  }

  .cta__btn {
    width: 100%;
    justify-content: space-between;
  }

  .blog {
    padding-block: 3.5rem;
  }

  .blog__header {
    margin-bottom: 2rem;
  }

  .blog__subtitle {
    max-width: none;
    text-align: left;
  }

  .blog__grid {
    grid-template-columns: 1fr;
    gap: 2rem;
  }

  .blog-featured__image {
    height: 16rem;
  }

  .blog-card {
    grid-template-columns: 7.5rem minmax(0, 1fr);
    gap: 0.875rem;
    padding: 0.75rem;
  }

  .blog-card__image {
    min-height: 7.5rem;
  }

  .blog-card__footer {
    flex-direction: column;
    align-items: flex-start;
    gap: 0.75rem;
  }

  .site-footer {
    padding-block: 3.5rem 2rem;
  }

  .site-footer__grid {
    grid-template-columns: 1fr;
    gap: 2.5rem;
  }

  .site-footer__brand {
    max-width: none;
  }

  .newsletter {
    flex-direction: column;
  }

  .newsletter__btn {
    width: 100%;
  }
}

/* --------------------------------------------------------------------------
   Small phones → large phones (480px+)
   -------------------------------------------------------------------------- */

@media (min-width: 480px) {
  :root {
    --gutter: var(--space-5);
  }
}

/* --------------------------------------------------------------------------
   Tablets (768px+)
   -------------------------------------------------------------------------- */

@media (min-width: 768px) {
  :root {
    --gutter: var(--space-6);
    --section-y: var(--space-10);
    --header-height: 5rem;
  }

  .section__header {
    margin-bottom: var(--space-9);
  }
}

@media (max-width: 767.98px) {
  .nav-toggle {
    display: inline-flex;
  }

  .nav--pill {
    position: fixed;
    inset: 5rem 1rem auto;
    z-index: var(--z-overlay);
    display: none;
    flex-direction: column;
    align-items: stretch;
    width: auto;
    padding: var(--space-4);
    box-shadow: var(--shadow-md);
  }

  .nav--pill.is-open {
    display: flex;
  }

  .nav--pill .nav__list {
    flex-direction: column;
    align-items: stretch;
    gap: var(--space-1);
  }

  .nav--pill .nav__link {
    display: block;
    padding: var(--space-3) var(--space-2);
  }

  .hero {
    min-height: 100svh;
    padding: 1.5rem 1rem 3.5rem;
    gap: 2.5rem;
  }

  .hero__title {
    font-size: clamp(2.25rem, 10vw, 2.75rem);
    max-width: none;
  }

  .hero-access {
    grid-template-columns: 1fr;
  }

  .hero-access__path {
    padding: 1.25rem;
  }

  .hero-access__path--pilot {
    border-top: 1px solid rgb(255 255 255 / 0.18);
    border-left: 0;
  }

  .hero-access__web-btn {
    width: 100%;
    justify-content: space-between;
  }

  .site-header--overlay .site-header__actions {
    display: none;
  }

  .back-to-top {
    right: var(--space-4);
    bottom: var(--space-4);
    width: 2.75rem;
    height: 2.75rem;
  }

  .nav:not(.nav--pill) {
    position: fixed;
    inset: var(--header-height) 0 auto 0;
    z-index: var(--z-overlay);
    display: none;
    flex-direction: column;
    align-items: stretch;
    gap: var(--space-4);
    padding: var(--space-6);
    background-color: var(--color-bg);
    border-bottom: var(--border-width) solid var(--color-border);
    box-shadow: var(--shadow-md);
  }

  .nav:not(.nav--pill).is-open {
    display: flex;
  }

  .nav:not(.nav--pill) .nav__list {
    flex-direction: column;
    align-items: stretch;
    gap: var(--space-1);
  }

  .nav:not(.nav--pill) .nav__link {
    display: block;
    padding: var(--space-3) var(--space-2);
  }

  .grid-2,
  .grid-3,
  .grid-4 {
    grid-template-columns: 1fr;
  }
}

@media (min-width: 768px) and (max-width: 1023.98px) {
  .hero {
    min-height: 44rem;
    padding: 1.5rem 2rem 6rem;
  }

  .nav--pill {
    padding: var(--space-3) var(--space-5);
  }

  .nav--pill .nav__list {
    gap: var(--space-6);
  }

  .content-wrap,
  .mission__inner,
  .events__inner,
  .events__viewport,
  .product-preview__inner,
  .how__inner,
  .causes__inner,
  .testimonial__inner,
  .cta__inner,
  .blog__inner,
  .team__inner,
  .site-footer__inner,
  .video__track,
  .video__copy {
    padding-inline: 2rem;
  }

  .event-card {
    flex-basis: 22rem;
    max-width: 22rem;
  }

  .event-card__image {
    height: 13.5rem;
  }

  .video__side {
    height: 18rem;
  }

  .video__image {
    height: 22rem;
  }

  .how__heading-row {
    align-items: flex-end;
  }

  .steps {
    gap: 2rem;
  }

  .causes__inner {
    gap: 2.5rem;
  }

  .causes__list {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .testimonial__panel {
    gap: 2rem;
  }

  .testimonial__image {
    min-height: 22rem;
  }

  .cta__panel {
    min-height: 32rem;
  }

  .cta__content {
    padding: 2.5rem;
  }

  .blog__grid {
    gap: 1.75rem;
  }

  .blog-featured__image {
    height: 20rem;
  }

  .blog-card {
    grid-template-columns: 9.5rem minmax(0, 1fr);
  }

  .site-footer__grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 2.5rem;
  }

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

  .mission__title,
  .mission__aside {
    max-width: none;
    flex: 1 1 auto;
  }

  .mission__aside {
    flex-direction: row;
    align-items: flex-end;
    gap: 2rem;
  }

  .mission__text {
    flex: 1 1 50%;
  }

  .stats__list {
    flex: 1 1 50%;
  }

  .values {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 2rem;
  }

  .mission__image {
    height: 16rem;
  }
}

@media (max-width: 767.98px) {
  .content-wrap,
  .mission__inner,
  .events__inner,
  .events__viewport,
  .product-preview__inner,
  .how__inner,
  .causes__inner,
  .testimonial__inner,
  .cta__inner,
  .blog__inner,
  .team__inner,
  .site-footer__inner,
  .video__track,
  .video__copy {
    padding-inline: 1rem;
  }

  .events__controls {
    flex-wrap: wrap;
    gap: 1.25rem;
  }

  .video__track {
    display: block;
  }

  .video__side {
    display: none;
  }

  .video__feature {
    width: 100%;
  }

  .video__image {
    height: 16rem;
  }

  .how__heading-row {
    flex-direction: column;
    align-items: flex-start;
    gap: 0.75rem;
  }

  .how__subtitle {
    max-width: none;
    text-align: left;
  }

  .steps {
    grid-template-columns: 1fr;
    gap: 2rem;
  }

  .steps::before {
    display: none;
  }

  .causes__inner {
    grid-template-columns: 1fr;
    gap: 2rem;
  }

  .causes__intro {
    flex-direction: column;
    align-items: flex-start;
    gap: 1.5rem;
  }

  .causes__text {
    max-width: none;
    text-align: left;
  }

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

  .sponsor {
    padding-block: 3.5rem;
  }

  .sponsor__panel {
    grid-template-columns: 1fr;
    gap: 2rem;
    padding: 1.5rem;
    border-radius: 1rem;
  }

  .sponsor__text {
    font-size: var(--fs-base);
  }

  .sponsor__btn {
    width: 100%;
  }

  .sponsor__scholarship {
    padding: 1.5rem;
    border-radius: 0.875rem;
  }

  .sponsor__partner-mark {
    width: 4.25rem;
    height: 4.25rem;
    border-radius: 0.75rem;
  }

  .testimonial__top {
    flex-direction: column;
    align-items: flex-start;
    margin-bottom: 2rem;
  }

  .testimonial__panel {
    grid-template-columns: 1fr;
    gap: 1.5rem;
  }

  .testimonial__image {
    min-height: 16rem;
    max-height: 20rem;
  }

  .testimonial__footer {
    flex-wrap: wrap;
  }

  .cta__panel {
    min-height: 26rem;
    border-radius: 1rem;
  }

  .cta__content {
    flex-direction: column;
    align-items: flex-start;
    gap: 2rem;
    padding: 1.75rem;
  }

  .cta__btn {
    width: 100%;
    justify-content: space-between;
  }

  .blog__heading-row {
    flex-direction: column;
    align-items: flex-start;
    gap: 0.75rem;
  }

  .blog__subtitle {
    max-width: none;
    text-align: left;
  }

  .blog__grid {
    grid-template-columns: 1fr;
    gap: 2rem;
  }

  .blog-featured__image {
    height: 14rem;
  }

  .blog-featured__footer {
    flex-wrap: wrap;
  }

  .blog-card {
    grid-template-columns: 1fr;
  }

  .blog-card__image {
    min-height: 12rem;
    height: 12rem;
  }

  .team {
    padding-block: 3.5rem;
  }

  .team__header {
    margin-bottom: 2rem;
  }

  .team__heading-row {
    flex-direction: column;
    align-items: flex-start;
    gap: 0.75rem;
  }

  .team__subtitle {
    max-width: none;
    text-align: left;
  }

  .team__grid {
    grid-template-columns: 1fr;
    gap: 1.5rem;
  }

  .team-card__body {
    padding: 1.5rem;
  }

  .site-footer__grid {
    grid-template-columns: 1fr;
    gap: 2.5rem;
  }

  .newsletter {
    flex-direction: column;
  }

  .newsletter__btn {
    width: 100%;
  }

  .mission__content {
    gap: 2rem;
  }

  .mission__top {
    flex-direction: column;
    align-items: flex-start;
    gap: 1.5rem;
  }

  .mission__title,
  .mission__aside {
    max-width: none;
    flex: 1 1 auto;
  }

  .stats__list {
    gap: 1.5rem;
  }

  .values {
    display: grid;
    grid-template-columns: 1fr;
    gap: 1.5rem;
  }

  .mission__image {
    height: 14rem;
  }
}

@media (min-width: 1440px) {
  .hero {
    padding-inline: max(var(--content-gutter), calc((100% - var(--content-max)) / 2));
  }
}

/* --------------------------------------------------------------------------
   Desktop (1024px+)
   -------------------------------------------------------------------------- */

@media (min-width: 1024px) {
  :root {
    --gutter: var(--space-7);
    --section-y: var(--space-11);
    --fs-5xl: 4rem;
  }

  .grid-2 {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .grid-3 {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .grid-4 {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

/* --------------------------------------------------------------------------
   Large desktop (1280px+)
   -------------------------------------------------------------------------- */

@media (min-width: 1280px) {
  :root {
    --gutter: var(--space-8);
  }

  .grid-4 {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
}

/* --------------------------------------------------------------------------
   Wide desktop (1440px+)
   -------------------------------------------------------------------------- */

@media (min-width: 1440px) {
  :root {
    --section-y: var(--space-12);
  }
}

/* --------------------------------------------------------------------------
   Ultra-wide (1920px+)
   -------------------------------------------------------------------------- */

@media (min-width: 1920px) {
  :root {
    --container-max: 80rem;
    --container-wide: 100rem;
  }
}

/* --------------------------------------------------------------------------
   Landscape phones
   -------------------------------------------------------------------------- */

@media (max-height: 500px) and (orientation: landscape) {
  :root {
    --header-height: 3.5rem;
    --section-y: var(--space-7);
  }

  .nav {
    max-height: calc(100vh - var(--header-height));
    overflow-y: auto;
  }
}

/* --------------------------------------------------------------------------
   Reduced motion (media-query companion to style.css)
   -------------------------------------------------------------------------- */

@media (prefers-reduced-motion: reduce) {
  .btn:active {
    transform: none;
  }
}

/* --------------------------------------------------------------------------
   High contrast / forced colors
   -------------------------------------------------------------------------- */

@media (forced-colors: active) {
  .btn,
  .form__control,
  .badge {
    border: 1px solid CanvasText;
  }

  .skip-link:focus {
    outline: 2px solid Highlight;
  }
}

/* --------------------------------------------------------------------------
   Product preview
   -------------------------------------------------------------------------- */

@media (max-width: 1023.98px) {
  .product-preview__heading-row {
    align-items: flex-start;
  }

  .product-showcase {
    grid-template-columns: 1fr;
  }

  .product-showcase__tabs {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .product-tab:hover {
    transform: none;
  }
}

@media (max-width: 767.98px) {
  .product-preview {
    padding-block: 3.5rem;
  }

  .product-preview__header {
    margin-bottom: 2rem;
  }

  .product-preview__heading-row {
    flex-direction: column;
    gap: 0.75rem;
  }

  .product-preview__intro {
    max-width: none;
    text-align: left;
  }

  .product-showcase {
    border-radius: 1rem;
  }

  .product-showcase__tabs {
    grid-template-columns: 1fr;
    padding: 0.875rem;
  }

  .product-tab {
    padding: 0.875rem;
  }

  .product-tab__copy span {
    display: none;
  }

  .product-showcase__stage {
    padding: 0.75rem;
  }

  .product-window__address {
    max-width: 9rem;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
  }

  .product-panel__media {
    height: 19rem;
  }

  .product-panel__caption {
    padding: 1.25rem;
  }

  .pilot-preview {
    min-height: 0;
    padding: 1.25rem;
  }

  .pilot-preview__header {
    flex-direction: column;
  }

  .pilot-preview__steps {
    grid-template-columns: 1fr;
  }

  .pilot-preview__steps li {
    flex-direction: row;
  }

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

  .product-preview__footer .btn {
    width: 100%;
    justify-content: space-between;
  }
}

@media (max-width: 479.98px) {
  .product-panel__media {
    height: 15rem;
  }

  .product-window__dots {
    left: 0.75rem;
  }

  .product-window__address {
    max-width: 7.5rem;
  }
}