/* ========================================================================
   Kasi Economic Warriors (KEW)
   Public Website Front-End
   File: assets/css/responsive.css

   Purpose:
   Breakpoint-specific adjustments only. This file does not introduce new
   brand colours, new component types or page-specific content. It adapts
   the existing KEW layout, components and page rules across the locked
   responsive breakpoints: 1440 / 1024 / 768 / 480.
   ======================================================================== */

/* ------------------------------------------------------------------------
   Large desktop: 1440px+
   ------------------------------------------------------------------------ */
@media (min-width: 1440px) {
  .container,
  .section__inner,
  .site-header__inner,
  .site-footer__inner,
  .page-hero__inner {
    width: min(100% - (var(--container-gutter) * 2), var(--container-max));
  }

  .page-hero {
    min-height: 680px;
  }

  .home-hero .page-hero__content {
    max-width: 920px;
  }

  .grid--4 {
    gap: var(--space-2xl);
  }

  .footer-grid {
    gap: var(--space-3xl);
  }
}

/* ------------------------------------------------------------------------
   Desktop / small laptop: below 1200px
   ------------------------------------------------------------------------ */
@media (max-width: 1199px) {
  .primary-nav {
    gap: var(--space-sm);
  }

  .primary-nav__list {
    gap: var(--space-xs);
  }

  .primary-nav__link {
    font-size: var(--font-size-xs);
  }

  .site-header__inner {
    gap: var(--space-md);
  }

  .page-hero {
    min-height: clamp(460px, 62vh, 640px);
  }

  .page-hero__content {
    max-width: 700px;
  }

  .home-hero .page-hero__content {
    max-width: 760px;
  }

  .home-kasitree__logo {
    width: min(100%, 320px);
  }

  .kasitree-hero__logo {
    width: min(100%, 390px);
  }

  .cta-strip__inner {
    gap: var(--space-xl);
  }
}

/* ------------------------------------------------------------------------
   Tablet: below 1024px
   ------------------------------------------------------------------------ */
@media (max-width: 1023px) {
  .site-header__inner {
    min-height: var(--header-height-mobile);
  }

  .primary-nav {
    display: none;
  }

  .menu-toggle {
    display: inline-grid;
  }

  .mobile-nav {
    display: block;
  }

  .page-hero {
    min-height: auto;
    padding-block: var(--section-space-md);
  }

  .page-hero__content {
    max-width: 680px;
  }

  .home-hero h1 {
    max-width: 11ch;
  }

  .home-hero__lead {
    max-width: 580px;
  }

  .grid--3 {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

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

  .split,
  .split--wide-left,
  .split--wide-right,
  .media-copy {
    gap: var(--space-2xl);
  }

  .cta-strip__inner {
    align-items: flex-start;
  }

  .cta-strip__copy {
    max-width: 620px;
  }

  .footer-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: var(--space-2xl);
  }

  .market-toolbar {
    padding-block: var(--space-lg);
  }

  .market-results__grid {
    margin-top: var(--space-lg);
  }

  .contact-form-panel {
    padding: var(--space-2xl);
  }
}

/* ------------------------------------------------------------------------
   Mobile: below 768px
   ------------------------------------------------------------------------ */
@media (max-width: 767px) {
  :root {
    --container-gutter: 20px;
  }

  .site-header,
  .site-header__inner {
    min-height: var(--header-height-mobile);
  }

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

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

  .container,
  .container--reading,
  .section__inner,
  .site-header__inner,
  .site-footer__inner,
  .page-hero__inner {
    width: calc(100% - (var(--container-gutter) * 2));
  }

  .page-hero {
    padding-block: var(--section-space-sm);
  }

  .page-hero__content,
  .home-hero .page-hero__content {
    max-width: 100%;
  }

  .home-hero h1 {
    max-width: 12ch;
    font-size: clamp(2.5rem, 12vw, 4rem);
  }

  .home-hero__lead,
  .kasitree-hero__tagline {
    font-size: var(--font-size-md);
  }

  .home-hero__principles {
    line-height: var(--line-height-body);
  }

  .grid--2,
  .grid--3,
  .grid--4,
  .split,
  .split--wide-left,
  .split--wide-right,
  .media-copy,
  .footer-grid {
    grid-template-columns: 1fr;
  }

  .grid,
  .split,
  .media-copy {
    gap: var(--space-lg);
  }

  .media-copy--reverse .media-copy__media,
  .media-copy--reverse .media-copy__copy {
    order: initial;
  }

  .stack--3xl {
    gap: var(--space-2xl);
  }

  .cluster {
    align-items: stretch;
  }

  .cluster--mobile-column {
    flex-direction: column;
  }

  .button,
  .btn {
    min-height: var(--button-height);
  }

  .button--large,
  .btn--large {
    min-height: var(--button-height-lg);
  }

  .button--mobile-full,
  .btn--mobile-full {
    width: 100%;
  }

  .card {
    padding: var(--space-lg);
  }

  .card__media {
    margin:
      calc(var(--space-lg) * -1)
      calc(var(--space-lg) * -1)
      var(--space-lg);
  }

  .card__actions {
    gap: var(--space-sm);
  }

  .card__actions .button,
  .card__actions .btn {
    flex: 1 1 auto;
  }

  .cta-strip {
    padding: var(--space-xl);
    border-radius: var(--radius-md);
  }

  .cta-strip__inner {
    flex-direction: column;
    align-items: stretch;
    gap: var(--space-lg);
  }

  .cta-strip__actions {
    width: 100%;
  }

  .cta-strip__actions .button,
  .cta-strip__actions .btn {
    flex: 1 1 100%;
  }

  .mobile-nav__list {
    padding: var(--space-md) var(--container-gutter) var(--space-lg);
  }

  .mobile-nav__link {
    min-height: 52px;
  }

  .home-ecosystem__grid,
  .market-results__grid {
    margin-top: var(--space-xl);
  }

  .home-kasitree__logo {
    width: min(100%, 300px);
  }

  .kasitree-hero__logo {
    width: min(100%, 340px);
  }

  .market-toolbar {
    padding-block: var(--space-md);
  }

  .market-empty {
    padding: var(--space-2xl) var(--space-lg);
  }

  .contact-main .split,
  .contact-main .grid--2 {
    gap: var(--space-2xl);
  }

  .contact-form-panel {
    padding: var(--space-xl);
    border-radius: var(--radius-md);
  }

  .contact-details__item {
    padding-block: var(--space-md);
  }

  .footer-grid {
    gap: var(--space-xl);
  }

  .site-footer__inner {
    padding-block: var(--section-space-sm);
  }

  .process-step {
    align-items: flex-start;
  }

  .modal,
  dialog {
    width: calc(100% - (var(--container-gutter) * 2));
    max-height: calc(100vh - 40px);
  }
}

/* ------------------------------------------------------------------------
   Small mobile: below 480px
   ------------------------------------------------------------------------ */
@media (max-width: 479px) {
  :root {
    --container-gutter: 16px;
  }

  h1 {
    font-size: clamp(2.25rem, 12vw, 3.25rem);
  }

  h2 {
    font-size: clamp(1.9rem, 9vw, 2.5rem);
  }

  h3 {
    font-size: clamp(1.5rem, 7vw, 2rem);
  }

  .home-hero h1 {
    font-size: clamp(2.4rem, 13vw, 3.4rem);
  }

  .home-hero__lead {
    font-size: var(--font-size-base);
  }

  .site-header__inner {
    gap: var(--space-sm);
  }

  .menu-toggle {
    width: 44px;
    height: 44px;
  }

  .page-hero {
    padding-block: var(--space-3xl);
  }

  .section,
  .section--compact {
    padding-block: var(--space-2xl);
  }

  .section--spacious {
    padding-block: var(--space-3xl);
  }

  .grid {
    gap: var(--space-md);
  }

  .card {
    padding: var(--space-md);
    border-radius: var(--radius-sm);
  }

  .card__media {
    margin:
      calc(var(--space-md) * -1)
      calc(var(--space-md) * -1)
      var(--space-md);
    border-radius: var(--radius-sm) var(--radius-sm) 0 0;
  }

  .card__icon {
    width: 44px;
    height: 44px;
  }

  .button,
  .btn,
  .cta-strip__actions .button,
  .cta-strip__actions .btn,
  .card__actions .button,
  .card__actions .btn {
    width: 100%;
  }

  .cta-strip {
    padding: var(--space-lg);
  }

  .home-kasitree__logo {
    width: min(100%, 260px);
  }

  .kasitree-hero__logo {
    width: min(100%, 285px);
  }

  .market-empty {
    padding: var(--space-xl) var(--space-md);
  }

  .contact-form-panel {
    padding: var(--space-lg);
  }

  .contact-details__item {
    padding-block: var(--space-md);
  }

  .mobile-nav__list {
    padding-inline: var(--container-gutter);
  }

  .footer-grid {
    gap: var(--space-lg);
  }
}

/* ------------------------------------------------------------------------
   Accessibility / input-mode adjustments
   ------------------------------------------------------------------------ */
@media (hover: none) {
  .card:hover,
  .button:hover,
  .btn:hover {
    transform: none;
  }
}

@media (pointer: coarse) {
  .primary-nav__link,
  .mobile-nav__link,
  .text-link,
  .filter-button,
  .social-link {
    min-height: 44px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .card,
  .button,
  .btn,
  .primary-nav__link::after,
  .text-link__icon,
  .accordion__icon {
    transition: none;
  }
}