/* =====================================================================
   Varsity Valuations — responsive behaviour

   Dashboards are rebuilt at each breakpoint rather than scaled down.
   Multi-column data grids become stacked or scrollable; the hero panel
   drops to a single column so figures stay legible.
   ===================================================================== */

/* ---------------------------------------------------------------------
   Laptop — 1024px to 1439px
   --------------------------------------------------------------------- */

@media (max-width: 1200px) {
  :root {
    --size-display: 3.25rem;
    --gutter: 1.75rem;
  }

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

/* ---------------------------------------------------------------------
   Tablet — 768px to 1023px
   --------------------------------------------------------------------- */

@media (max-width: 1023px) {
  :root {
    --size-display: 2.75rem;
    --size-h1: 2.125rem;
    --size-h2: 1.625rem;
    --space-9: 4.5rem;
  }

  /* Nav collapses to a disclosure menu. */
  .site-nav__links {
    display: none;
    position: absolute;
    top: var(--nav-height);
    left: 0;
    right: 0;
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    padding: var(--space-3) var(--gutter) var(--space-5);
    margin-left: 0;
    background: var(--surface);
    border-bottom: 1px solid var(--border-subtle);
    box-shadow: var(--shadow-md);
  }

  .site-nav__links[data-open="true"] {
    display: flex;
  }

  .site-nav__link,
  .nav-dropdown__toggle {
    padding: var(--space-3) 0;
    border-bottom: 1px solid var(--border-subtle);
    width: 100%;
    text-align: left;
  }

  .site-nav__link[aria-current="page"] {
    border-bottom-color: var(--border-subtle);
    font-weight: 600;
  }

  .nav-dropdown {
    width: 100%;
  }

  .nav-dropdown__toggle {
    justify-content: space-between;
  }

  .nav-dropdown__menu {
    position: static;
    display: none;
    min-width: 0;
    padding: var(--space-2) 0 var(--space-3) var(--space-4);
    border: 0;
    box-shadow: none;
    background: transparent;
  }

  .nav-dropdown__menu[data-open="true"] {
    display: block;
  }

  .site-nav__cta {
    margin-top: var(--space-4);
    width: 100%;
  }

  .site-nav__toggle {
    display: inline-flex;
  }

  /* Panels and grids reflow to single column. */
  .panel__grid,
  .layers,
  .search-results,
  .comparables,
  .grid-2,
  .grid-3 {
    grid-template-columns: 1fr;
  }

  .comparables {
    gap: var(--space-6);
  }

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

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

  .site-footer__top {
    grid-template-columns: 1fr 1fr;
    gap: var(--space-5);
  }
}

/* ---------------------------------------------------------------------
   Mobile — 320px to 767px
   --------------------------------------------------------------------- */

@media (max-width: 767px) {
  :root {
    --size-display: 2.125rem;
    --size-h1: 1.75rem;
    --size-h2: 1.375rem;
    --size-h3: 1.125rem;
    --gutter: 1.25rem;
    --space-8: 3rem;
    --space-9: 3.5rem;
  }

  .hero {
    padding: var(--space-6) 0 var(--space-8);
  }

  /* Three metrics side by side become unreadable below ~640px. */
  .metrics {
    grid-template-columns: 1fr;
  }

  .fragments,
  .audience-grid {
    grid-template-columns: 1fr;
  }

  .panel__body {
    padding: var(--space-4);
  }

  .panel__bar {
    padding: var(--space-3) var(--space-4);
  }

  .layer {
    padding: var(--space-5);
  }

  .btn-row .btn {
    width: 100%;
  }

  .deal-amount {
    font-size: 1.75rem;
  }

  .intel-card__head {
    flex-direction: column;
    align-items: flex-start;
    gap: var(--space-2);
  }

  .site-footer__top {
    grid-template-columns: 1fr;
    gap: var(--space-5);
  }

  .site-footer__bottom {
    flex-direction: column;
    gap: var(--space-2);
  }
}

@media (max-width: 400px) {
  .result-rows li {
    flex-direction: column;
    gap: var(--space-1);
  }
}

/* ---------------------------------------------------------------------
   Phase 2 pages
   --------------------------------------------------------------------- */

@media (max-width: 1023px) {
  .feature {
    grid-template-columns: 1fr;
    gap: var(--space-6);
  }

  /* Copy always leads on narrow screens; the alternating order only makes
     sense when the two columns sit side by side. */
  .feature--reverse .feature__copy {
    order: 0;
  }

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

@media (max-width: 767px) {
  .step {
    grid-template-columns: 1fr;
    gap: var(--space-3);
    padding: var(--space-6) 0;
  }

  .step__number {
    font-size: var(--size-h3);
  }

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

  .research {
    padding: var(--space-4);
  }

  .research__answer {
    font-size: var(--size-body);
  }

  .thesis p {
    font-size: var(--size-h3);
  }
}

/* ---------------------------------------------------------------------
   Phase 3 — athlete dashboard
   --------------------------------------------------------------------- */

@media (max-width: 1023px) {
  .dash {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 767px) {
  .dash__col {
    padding: var(--space-4);
  }

  /* The comparable table becomes stacked records. Each cell keeps its
     column name via data-label so the values stay interpretable. */
  .data-table,
  .data-table tbody,
  .data-table tr,
  .data-table td {
    display: block;
    width: 100%;
  }

  .data-table thead {
    display: none;
  }

  .data-table tbody tr {
    padding: var(--space-3) 0;
    border-bottom: 1px solid var(--border-subtle);
  }

  .data-table tbody tr:last-child {
    border-bottom: 0;
  }

  .data-table td {
    display: flex;
    align-items: baseline;
    justify-content: space-between;
    gap: var(--space-4);
    padding: var(--space-1) 0;
    border-bottom: 0;
  }

  .data-table td::before {
    content: attr(data-label);
    font-size: var(--size-meta);
    color: var(--text-muted);
    flex-shrink: 0;
  }

  .data-table td.numeric-cell {
    text-align: left;
  }

  .data-table__name {
    font-size: var(--size-body);
  }

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

  .claim-strip .btn {
    width: 100%;
  }
}

/* ---------------------------------------------------------------------
   Phase 4 — organization experiences
   --------------------------------------------------------------------- */

@media (max-width: 1023px) {
  .persona__grid {
    grid-template-columns: 1fr;
  }

  .use-cases {
    grid-template-columns: 1fr 1fr;
  }

  /* Tabs scroll horizontally rather than wrapping into ragged rows. */
  .tab {
    flex: 0 0 auto;
  }
}

@media (max-width: 767px) {
  .use-cases {
    grid-template-columns: 1fr;
  }

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

  .persona__cta .btn {
    width: 100%;
  }

  .stat {
    flex-direction: column;
    gap: var(--space-1);
  }
}

/* ---------------------------------------------------------------------
   Phase 5 — forms
   --------------------------------------------------------------------- */

@media (max-width: 767px) {
  .field-grid,
  .field-grid--three {
    grid-template-columns: 1fr;
  }

  .form-card {
    padding: var(--space-4);
  }

  .form-actions .btn {
    width: 100%;
  }

  .result {
    flex-wrap: wrap;
  }

  .result__badges {
    width: 100%;
    padding-left: calc(38px + var(--space-4));
  }
}

/* ---------------------------------------------------------------------
   Phase 6 — deal submission
   --------------------------------------------------------------------- */

@media (max-width: 1023px) {
  .submit-layout {
    grid-template-columns: 1fr;
  }

  /* A sticky preview above a long form just covers the form on narrow
     screens, so it becomes a normal block. */
  .preview {
    position: static;
  }

  .status-flow {
    grid-template-columns: 1fr 1fr;
  }
}

@media (max-width: 767px) {
  .choices {
    grid-template-columns: 1fr;
  }

  .status-flow {
    grid-template-columns: 1fr;
  }

  .upload {
    padding: var(--space-4);
  }
}