/**
 * Walonium Hook & Loop Requirement Calculator
 * Phase 2A — Responsive layout foundation
 * Mobile-first breakpoints: 360, 390, 414, 768, 1024, 1280, 1440, 1920
 */

/* ==========================================================================
   1. Small mobile (360px+)
   ========================================================================== */

@container (min-width: 22.5rem) {
  #main-content .calc-benefits__grid {
    gap: var(--calc-space-3);
  }
}

/* ==========================================================================
   2. Mobile (390px+, 414px+)
   ========================================================================== */

@media (min-width: 25.875rem) {
  #main-content .calc-form__actions {
    flex-direction: row;
    align-items: center;
  }

  #main-content .calc-hero__actions {
    flex-direction: row;
    align-items: flex-start;
  }
}

/* ==========================================================================
   3. Tablet (768px+)
   ========================================================================== */

@media (min-width: 48rem) {
  #main-content .calc-benefits__grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  #main-content .calc-results__grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  #main-content .calc-hero__grid {
    grid-template-columns: minmax(0, 23fr) minmax(0, 27fr);
    align-items: start;
  }

  #main-content .calc-workspace-band {
    grid-template-columns: minmax(0, 1fr);
    gap: var(--calc-space-6);
  }
}

/* ==========================================================================
   4. Laptop (1024px+)
   ========================================================================== */

@media (min-width: 64rem) {
  #main-content .calc-workspace-band {
    width: min(100%, var(--mph-content-max, var(--desktop-content-max)));
    margin-inline: auto;
    padding-inline: 0;
    grid-template-columns: minmax(0, 62fr) minmax(0, 38fr);
    align-items: stretch;
    gap: calc(var(--calc-space-5) * 0.89);
  }

  #main-content .calc-summary__container {
    position: sticky;
    top: var(--calc-sticky-top);
  }

  #main-content .calc-benefits__grid {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

  #main-content .calc-results__grid {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
}

/* ==========================================================================
   5. Desktop (1280px+)
   ========================================================================== */

@media (min-width: 80rem) {
  #main-content .calc-workspace-band {
    gap: var(--calc-space-8);
  }

  #main-content .calc-hero__grid {
    gap: var(--mph-gap-hero-grid, var(--calc-space-7));
  }
}

/* ==========================================================================
   6. Large desktop (1440px+)
   ========================================================================== */

@media (min-width: 90rem) {
  #main-content section.kc-hero.calc-hero .kc-hero__title,
  #main-content section.kc-hero.calc-hero .calc-hero__headline {
    max-width: 24ch;
  }
}

/* ==========================================================================
   7. Ultra-wide (1920px+)
   ========================================================================== */

@media (min-width: 120rem) {
  #main-content .calc-hero__grid {
    grid-template-columns: minmax(0, 23fr) minmax(0, 27fr);
  }
}

/* ==========================================================================
   8. Responsive utilities
   ========================================================================== */

@media (max-width: 47.99rem) {
  #main-content .calc-u-hide-mobile {
    display: none;
  }

  #main-content .calc-summary__container {
    position: static;
  }
}

@media (min-width: 48rem) {
  #main-content .calc-u-hide-tablet-up {
    display: none;
  }
}

@media (min-width: 64rem) {
  #main-content .calc-u-hide-desktop {
    display: none;
  }
}

@media (max-width: 63.99rem) {
  #main-content .calc-u-stack {
    display: grid;
    gap: var(--calc-space-5);
  }
}

/* Container query support on workspace band */

#main-content .calc-workspace-band {
  container-type: inline-size;
  container-name: calc-workspace;
}

@container calc-workspace (min-width: 56rem) {
  #main-content .calc-form {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    column-gap: calc(var(--calc-space-5) * 0.89);
    row-gap: calc(var(--calc-space-5) * 0.89);
  }

  #main-content .calc-form__actions {
    grid-column: 1 / -1;
  }
}

/* Reduced horizontal padding on very narrow screens */

@media (max-width: 22.49rem) {
  #main-content {
    --calc-gutter: 0.875rem;
  }

  #main-content .calc-summary__row {
    grid-template-columns: 1fr;
    text-align: start;
  }

  #main-content .calc-summary__value {
    text-align: start;
  }
}

/* ==========================================================================
   9. Phase 2B — Hero & Benefits responsive
   ========================================================================== */

/* Mobile: full-width CTAs, stacked hero */

@media (max-width: 47.99rem) {
  #main-content .calc-hero__actions {
    flex-direction: column;
    align-items: stretch;
    width: 100%;
  }

  #main-content .calc-hero__actions .calc-hero__cta {
    width: 100%;
  }

  #main-content section.kc-hero.calc-hero .kc-hero__title,
  #main-content section.kc-hero.calc-hero .calc-hero__headline {
    max-width: 20ch;
  }

  #main-content .calc-hero__grid {
    gap: var(--calc-space-8);
  }

  #main-content .calc-hero__illustration {
    order: 2;
  }

  #main-content .calc-hero__content {
    order: 1;
  }

  #main-content .calc-hero__trust {
    grid-template-columns: 1fr;
  }

  #main-content .calc-hero__scroll {
    display: none;
  }

  #main-content .calc-hero__float-card--spec {
    inset-inline-end: 4%;
    min-inline-size: 7.5rem;
  }

  #main-content .calc-hero__float-card--metric {
    inset-inline-start: 4%;
    min-inline-size: 8rem;
  }

  #main-content .calc-benefits__header {
    text-align: start;
  }

  #main-content .calc-benefits__title {
    margin-inline: 0;
  }

  #main-content .calc-benefits__header .calc-section__intro {
    margin-inline: 0;
  }
}

/* Tablet: trust 2×2 */

@media (min-width: 48rem) and (max-width: 63.99rem) {
  #main-content .calc-hero__trust {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

/* Desktop: trust row */

@media (min-width: 64rem) {
  #main-content .calc-hero__trust {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
}

/* Ultra-wide: expanded hero illustration */

@media (min-width: 120rem) {
  #main-content .calc-hero__illustration {
    min-block-size: 30rem;
  }

  #main-content .calc-benefits__grid {
    gap: var(--calc-space-3);
  }
}

/* ==========================================================================
   10. Phase 3A — Workspace & Summary responsive
   ========================================================================== */

@media (max-width: 47.99rem) {
  #main-content .calc-workspace__container,
  #main-content .calc-summary__container {
    padding: var(--calc-space-5);
  }

  #main-content .calc-form__action-bar {
    grid-template-columns: 1fr;
  }

  #main-content .calc-form__action-bar .calc-form__button {
    min-block-size: var(--calc-touch-min);
  }

  #main-content .calc-summary__container.calc-u-sticky {
    position: static;
  }

  #main-content .calc-summary__row {
    grid-template-columns: 1fr;
    gap: var(--calc-space-1);
  }

  #main-content .calc-summary__value {
    text-align: start;
  }
}

@media (min-width: 48rem) {
  #main-content .calc-form__action-bar {
    display: flex;
    flex-wrap: nowrap;
    gap: var(--calc-space-3);
    align-items: stretch;
  }

  #main-content .calc-form__action-bar .calc-form__button {
    flex: 1 1 0;
    width: auto;
    min-block-size: 3rem;
  }
}

@media (min-width: 64rem) {
  #main-content .calc-workspace-band {
    align-items: stretch;
  }

  #main-content .calc-summary__container.calc-u-sticky {
    top: var(--calc-sticky-top);
  }
}