/*
 * /sol demo page styles.
 *
 * Shared tokens, font faces, baseline typography, and session color now come
 * from app/assets/stylesheets/sol/core.css. This file only keeps the local demo
 * layout and component styling that is specific to the /sol route.
 */

:root {
  --font-family: var(--font-family--sans-language);
  --typography--weight--regular: var(--font-weight--regular);
  --typography--weight--bold: var(--font-weight--bold);
  --typography--leading--body: var(--typography--preset--body--leading);
  --typography--leading--solid: var(--typography--preset--solid--leading);
  --page-spacing--fixed: var(--page-spacing-fixed);
  --animation--curve--default: var(--motion--curve--ease-in);
  --animation--duration--fast: var(--motion--duration--150);
  --animation--duration--default: var(--motion--duration--200);
  --typography--size--small: calc(14 * var(--rem-conversion));
  --typography--size--medium: calc(16 * var(--rem-conversion));
  --typography--size--large: calc(20 * var(--rem-conversion));
  --typography--size--medium-large: calc(24 * var(--rem-conversion));
  --typography--size--xl: calc(28 * var(--rem-conversion));
  --typography--size--xxl: calc(32 * var(--rem-conversion));
  --typography--size--hero: calc(36 * var(--rem-conversion));
}

@media (min-width: 768px) {
  :root {
    --typography--size--small: calc(16 * var(--rem-conversion));
    --typography--size--medium: calc(18 * var(--rem-conversion));
    --typography--size--large: calc(22 * var(--rem-conversion));
    --typography--size--medium-large: calc(30 * var(--rem-conversion));
    --typography--size--xl: calc(40 * var(--rem-conversion));
    --typography--size--xxl: calc(60 * var(--rem-conversion));
    --typography--size--hero: calc(80 * var(--rem-conversion));
  }
}

/* ============================================================
   COMPONENT: Artwork Card
   ============================================================ */

.sol-card {
  position: relative;
  overflow: hidden;
  border-radius: 0.2rem;
  transition: box-shadow var(--animation--duration--default) var(--animation--curve--default),
              transform var(--animation--duration--default) var(--animation--curve--default);
  cursor: pointer;
  color: var(--color--black);
  text-decoration: none;
}

.sol-card:hover {
  box-shadow: 0 0 0 0.2rem var(--color--session);
  transform: translateY(-0.2rem);
  opacity: 1;
}

.sol-card:focus-visible {
  outline: var(--focus-thickness) solid var(--color--session);
  outline-offset: var(--focus-thickness);
  border-radius: var(--focus-radius);
}

.sol-card__image {
  width: 100%;
  aspect-ratio: 1;
  object-fit: cover;
  display: block;
  background: var(--color--gray--eee);
}

.sol-card__body {
  padding: calc(var(--page-spacing) * 0.5);
}

.sol-card__title {
  font-size: var(--typography--size--small);
  font-weight: var(--typography--weight--bold);
  line-height: var(--typography--leading--body);
  margin-bottom: 0.2rem;
  color: var(--color--black);
}

.sol-card__artist {
  font-size: var(--typography--size--small);
  color: var(--color--gray--555);
}

.sol-card__date {
  font-size: var(--typography--size--small);
  color: var(--color--gray--888);
}

.sol-card__similarity {
  display: inline-block;
  font-size: 1.1rem;
  font-weight: var(--typography--weight--bold);
  color: var(--color--session);
  margin-top: 0.4rem;
}

/* ============================================================
   COMPONENT: Band (similarity grouping)
   ============================================================ */

.sol-band {
  margin-bottom: calc(var(--page-spacing) * 1.5);
}

.sol-band__label {
  font-size: var(--typography--size--small);
  font-weight: var(--typography--weight--bold);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--color--gray--767);
  margin-bottom: calc(var(--page-spacing) * 0.5);
  padding-bottom: 0.4rem;
  border-bottom: 0.1rem solid var(--color--gray--ddd);
}

/* ============================================================
   COMPONENT: Color Swatch
   ============================================================ */

.sol-swatch {
  width: 4.8rem;
  height: 4.8rem;
  border-radius: 50%;
  border: none;
  transition: transform var(--animation--duration--fast) var(--animation--curve--default),
              box-shadow var(--animation--duration--fast) var(--animation--curve--default);
  cursor: pointer;
}

.sol-swatch:hover {
  transform: scale(1.15);
}

.sol-swatch--palette-only {
  cursor: default;
}

.sol-swatch--palette-only:hover {
  transform: none;
}

.sol-swatch--active {
  box-shadow: 0 0 0 0.3rem var(--color--white), 0 0 0 0.5rem var(--color--black);
}

.sol-swatch:focus-visible {
  outline: var(--focus-thickness) solid var(--color--session);
  outline-offset: 0.3rem;
}

/* ============================================================
   LAYOUT UTILITIES
   ============================================================ */

.sol-wrapper {
  max-width: 128rem;
  margin: 0 auto;
  padding: 0 var(--page-spacing--fixed);
}

.sol-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(22rem, 1fr));
  gap: calc(var(--page-spacing) * 0.75);
}

.sol-grid--swatches {
  display: flex;
  flex-wrap: wrap;
  gap: 1.2rem;
  align-items: center;
}

.sol-section {
  padding: 0;
  border-bottom: 0.1rem solid var(--color--gray--eee);
}

.sol-section:last-child {
  border-bottom: none;
}

.sol-section__title {
  font-size: var(--typography--size--xl);
  font-weight: var(--typography--weight--bold);
  padding: calc(var(--page-spacing) * 1.5) 0;
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: 1.6rem;
}

.sol-section__title > span {
  flex: 1;
}

summary.sol-section__title {
  list-style-type: none;
}

summary.sol-section__title::-webkit-details-marker,
summary.sol-section__title::marker {
  display: none;
  content: '';
  font-size: 0;
}

.sol-section__title::after {
  content: '+';
  font-size: var(--typography--size--large);
  font-weight: var(--typography--weight--regular);
  color: var(--color--gray--888);
}

.sol-section[open] > .sol-section__title::after {
  content: '\2212';
}

.sol-section__body {
  padding-bottom: calc(var(--page-spacing) * 2);
}

/* Implementation toggle button */
.sol-toggle {
  font-family: var(--font-family);
  font-size: 1.2rem;
  font-weight: var(--typography--weight--bold);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  padding: 0.4rem 1.2rem;
  background: none;
  border: 0.1rem solid var(--color--gray--ccc);
  border-radius: 0.2rem;
  color: var(--color--gray--767);
  cursor: pointer;
  transition: all var(--animation--duration--fast) var(--animation--curve--default);
  margin-right: 1.6rem;
}

.sol-toggle:hover {
  border-color: var(--color--gray--555);
  color: var(--color--black);
}

/* Implementation panel */
.sol-section__impl {
  display: none;
  padding-bottom: calc(var(--page-spacing) * 2);
}

.sol-section[data-view="impl"] .sol-section__body {
  display: none;
}

.sol-section[data-view="impl"] .sol-section__impl {
  display: block;
}

.sol-impl-note {
  font-size: var(--typography--size--small);
  color: var(--color--gray--555);
  margin-bottom: calc(var(--page-spacing) * 0.75);
  max-width: 64rem;
  line-height: var(--typography--leading--body);
}

.sol-impl-note strong {
  color: var(--color--black);
}

.sol-impl-code {
  background: var(--color--gray--222);
  color: var(--color--gray--eee);
  padding: 2rem 2.4rem;
  border-radius: 0.4rem;
  margin-bottom: calc(var(--page-spacing) * 1.25);
  overflow-x: auto;
  font-family: 'SF Mono', 'Monaco', 'Menlo', monospace;
  font-size: 1.3rem;
  line-height: 1.6;
  white-space: pre;
}

.sol-impl-code .c { color: var(--color--gray--767); }
.sol-impl-code .k { color: #c084fc; }
.sol-impl-code .s { color: #86efac; }
.sol-impl-code .v { color: #93c5fd; }
.sol-impl-code .n { color: #fbbf24; }

.sol-impl-label {
  font-size: 1.1rem;
  font-weight: var(--typography--weight--bold);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--color--session);
  margin-bottom: 0.8rem;
}

.sol-section__subtitle {
  font-size: var(--typography--size--medium);
  color: var(--color--gray--555);
  margin-bottom: var(--page-spacing);
  max-width: 64rem;
}

/* ============================================================
   TYPOGRAPHY SPECIMEN
   ============================================================ */

.sol-type-row {
  display: flex;
  align-items: baseline;
  gap: 2.4rem;
  padding: 1.2rem 0;
  border-bottom: 0.1rem solid var(--color--gray--eee);
}

.sol-type-row__label {
  flex: 0 0 12rem;
  font-size: 1.2rem;
  color: var(--color--gray--767);
  text-transform: uppercase;
  letter-spacing: 0.06em;
}

@media (max-width: 767px) {
  .sol-type-row__label {
    flex: 0 0 9rem;
    font-size: 1.1rem;
  }

  .sol-type-row {
    gap: 1.6rem;
  }
}

.sol-type-row__sample {
  flex: 1;
  line-height: var(--typography--leading--solid);
  min-width: 0;
}

/* ============================================================
   HEADER
   ============================================================ */

.sol-header {
  padding: calc(var(--page-spacing) * 2) 0 calc(var(--page-spacing) * 1);
}

.sol-header__title {
  font-size: var(--typography--size--hero);
  font-weight: var(--typography--weight--bold);
  line-height: var(--typography--leading--solid);
  margin-bottom: 0.8rem;
}

.sol-header__subtitle {
  font-size: var(--typography--size--large);
  color: var(--color--gray--555);
  max-width: 64rem;
}

/* ============================================================
   MODERNIZATION NOTES
   ============================================================ */

.sol-notes {
  font-size: var(--typography--size--small);
  color: var(--color--gray--444);
  line-height: var(--typography--leading--body);
  list-style: none;
  max-width: 72rem;
}

.sol-notes li {
  margin-bottom: 1.2rem;
  padding-left: 2rem;
  position: relative;
}

.sol-notes li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 0.8rem;
  width: 0.6rem;
  height: 0.6rem;
  background: var(--color--session);
  border-radius: 50%;
}

.sol-notes code {
  font-family: 'SF Mono', 'Monaco', 'Menlo', monospace;
  font-size: 0.85em;
  background: var(--color--gray--eee);
  padding: 0.2rem 0.5rem;
  border-radius: 0.2rem;
}

a {
  color: var(--color--session);
  text-decoration: none;
  transition: opacity var(--animation--duration--fast) var(--animation--curve--default);
}

a:hover {
  opacity: 0.8;
}

a:focus-visible {
  outline: var(--focus-thickness) solid var(--color--session);
  outline-offset: var(--focus-thickness);
  border-radius: var(--focus-radius);
}

/* ============================================================
   COMPONENT: Collection Controls
   ============================================================ */

.sol-controls {
  margin-bottom: calc(var(--page-spacing) * 1.5);
}

.sol-controls__row {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.6rem;
  margin-bottom: 1.2rem;
}

.sol-controls__label {
  font-size: 1.1rem;
  font-weight: var(--typography--weight--bold);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--color--gray--767);
  min-width: 9rem;
  flex-shrink: 0;
}

.sol-controls__pill {
  font-family: var(--font-family);
  font-size: 1.2rem;
  font-weight: var(--typography--weight--bold);
  padding: 0.4rem 1rem;
  background: none;
  border: 0.1rem solid var(--color--gray--ccc);
  border-radius: 10rem;
  color: var(--color--gray--555);
  cursor: pointer;
  transition: all var(--animation--duration--fast) var(--animation--curve--default);
  white-space: nowrap;
}

.sol-controls__pill:hover {
  border-color: var(--color--gray--555);
  color: var(--color--black);
}

.sol-controls__pill--active {
  background: var(--color--session);
  border-color: var(--color--session);
  color: var(--color--white);
}

.sol-controls__pill--active:hover {
  opacity: 0.85;
}

.sol-controls__pill:focus-visible {
  outline: var(--focus-thickness) solid var(--color--session);
  outline-offset: var(--focus-thickness);
}

.sol-controls__refresh {
  font-family: var(--font-family);
  font-size: 1.2rem;
  font-weight: var(--typography--weight--bold);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  padding: 0.6rem 2rem;
  min-height: 3.6rem;
  background: var(--color--black);
  color: var(--color--white);
  border: none;
  border-radius: 0.2rem;
  cursor: pointer;
  transition: background var(--animation--duration--default) var(--animation--curve--default);
  margin-top: 0.4rem;
}

.sol-controls__refresh:hover {
  background: var(--color--gray--333);
}

.sol-controls__refresh:disabled {
  background: var(--color--gray--ccc);
  cursor: not-allowed;
}

.sol-controls__refresh:focus-visible {
  outline: var(--focus-thickness) solid var(--color--session);
  outline-offset: var(--focus-thickness);
}

/* Loading states */
.sol-controls--loading {
  opacity: 0.4;
  pointer-events: none;
}

.sol-collection,
.sol-band + .sol-band,
[data-sol-demo-target="neighborGrid"] {
  transition: opacity 200ms ease-out;
}

.sol-collection--fading {
  opacity: 0;
  pointer-events: none;
}

.sol-collection--loading {
  pointer-events: none;
}

/* Footer */
.sol-footer {
  margin-top: var(--page-spacing);
  padding-bottom: calc(var(--page-spacing) * 2);
  font-size: var(--typography--size--small);
  color: var(--color--gray--888);
}

/* ============================================================
   COMPONENT: Semantic Axis
   ============================================================ */

.sol-axis-controls {
  display: flex;
  align-items: center;
  gap: 1.6rem;
  margin-bottom: calc(var(--page-spacing) * 1.5);
  flex-wrap: wrap;
}

.sol-axis-pole {
  display: flex;
  flex-direction: column;
  gap: 0.2rem;
  min-width: 12rem;
}

.sol-axis-pole__label {
  font-size: 1.1rem;
  font-weight: var(--typography--weight--bold);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--color--gray--767);
}

.sol-axis-pole__value {
  font-size: var(--typography--size--small);
  color: var(--color--gray--555);
}

.sol-axis-pole--a .sol-axis-pole__value {
  color: var(--color--session);
}

.sol-axis-pole--b {
  text-align: right;
}

.sol-axis-poles-row {
  display: flex;
  justify-content: space-between;
  gap: 1.6rem;
  width: 100%;
}

.sol-axis-input-group {
  flex: 1;
  display: flex;
  gap: 0.8rem;
  min-width: 24rem;
}

.sol-axis-input {
  flex: 1;
  font-family: var(--font-family);
  font-size: var(--typography--size--medium);
  padding: 0.8rem 1.2rem;
  border: 0.1rem solid var(--color--gray--ccc);
  border-radius: 0.2rem;
  outline: none;
  transition: border-color var(--animation--duration--default) var(--animation--curve--default);
}

.sol-axis-input:focus {
  border-color: var(--color--session);
}

.sol-axis-button {
  font-family: var(--font-family);
  font-size: var(--typography--size--small);
  font-weight: var(--typography--weight--bold);
  padding: 0.8rem 2.4rem;
  min-height: 4.4rem;
  background: var(--color--black);
  color: var(--color--white);
  border: none;
  border-radius: 0.2rem;
  cursor: pointer;
  transition: background var(--animation--duration--default) var(--animation--curve--default);
  flex-shrink: 0;
}

.sol-axis-button:hover {
  background: var(--color--gray--333);
}

.sol-axis-button:disabled {
  background: var(--color--gray--ccc);
  cursor: not-allowed;
}

.sol-axis-button:focus-visible {
  outline: var(--focus-thickness) solid var(--color--session);
  outline-offset: var(--focus-thickness);
}

.sol-axis-track {
  position: relative;
  min-height: 24rem;
  padding: 2rem 0;
}

.sol-axis-line {
  position: absolute;
  top: 50%;
  left: 0;
  right: 0;
  height: 0.2rem;
  background: linear-gradient(to right, var(--color--session), var(--color--gray--ccc));
  transform: translateY(-50%);
  z-index: 0;
}

.sol-axis-results {
  position: relative;
  z-index: 1;
  display: flex;
  align-items: flex-end;
  min-height: 22rem;
  padding: 0 1rem;
  gap: 0.4rem;
}

.sol-axis-item {
  position: relative;
  display: flex;
  flex-direction: column;
  align-items: center;
  width: 11rem;
  flex-shrink: 0;
  text-decoration: none;
  color: var(--color--black);
  transition: transform var(--animation--duration--fast) var(--animation--curve--default);
}

.sol-axis-item:hover {
  transform: translateY(-0.4rem);
  opacity: 1;
}

.sol-axis-item__image {
  width: 8rem;
  height: 8rem;
  object-fit: cover;
  border-radius: 0.2rem;
  border: 0.2rem solid transparent;
  transition: border-color var(--animation--duration--default) var(--animation--curve--default);
  background: var(--color--gray--eee);
}

.sol-axis-item:hover .sol-axis-item__image {
  border-color: var(--color--session);
}

.sol-axis-item__title {
  font-size: 1.1rem;
  font-weight: var(--typography--weight--bold);
  text-align: center;
  margin-top: 0.4rem;
  max-width: 11rem;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.sol-axis-item__position {
  font-size: 1rem;
  color: var(--color--session);
  font-weight: var(--typography--weight--bold);
}

.sol-axis-item__stem {
  width: 0.1rem;
  background: var(--color--gray--ddd);
  margin: 0.2rem 0;
}

/* ============================================================
   COMPONENT: Featured Layout (Collection section)
   ============================================================ */

.sol-featured-layout {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--page-spacing);
  align-items: start;
}

@media (min-width: 768px) {
  .sol-featured-layout {
    grid-template-columns: 1fr 2fr;
    gap: var(--page-spacing--fixed);
  }
}

.sol-featured-card {
  max-width: 40rem;
}

.sol-featured-card .sol-card__image {
  aspect-ratio: auto;
}

.sol-featured-card .sol-card__title {
  font-size: var(--typography--size--large);
}

/* ============================================================
   RESPONSIVE: Axis Results (horizontal scroll on mobile)
   ============================================================ */

@media (max-width: 767px) {
  .sol-axis-results {
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
    padding-bottom: 1.6rem;
    gap: 0.8rem;
  }

  .sol-axis-controls {
    flex-direction: column;
    align-items: stretch;
  }

  .sol-axis-input-group {
    min-width: 0;
    order: -1;
  }

  .sol-axis-pole {
    min-width: 0;
  }

  .sol-axis-poles-row {
    display: flex;
    justify-content: space-between;
    gap: 1.6rem;
  }
}

/* Loading state */
.sol-loading {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 20rem;
  color: var(--color--gray--888);
  font-size: var(--typography--size--medium);
}