/* Skill rail (index) + hero image (index rail and skill pages) */

:root {
  --gp-header-height: 5.0625rem;
}

.gp-index-layout {
  display: flex;
  align-items: flex-start;
  width: 100%;
}

.gp-index-main {
  flex: 1 1 auto;
  min-width: 0;
}

.gp-skill-rail {
  --gp-rail-width: 26.5rem;
  display: none;
  flex-direction: column;
  flex: 0 0 auto;
  width: min(var(--gp-rail-width), 72vw, calc(100vw - 22.5rem));
  min-width: 0;
  max-width: 100%;
  position: sticky;
  top: var(--gp-header-height);
  height: calc(100dvh - var(--gp-header-height));
  background: #0c0e12;
  border-left: 1px solid #272b31;
  z-index: 40;
  transition: width 0.16s ease;
}

body.gp-rail-open .gp-skill-rail {
  display: flex;
}

body.gp-ide-fs-active .gp-skill-rail {
  z-index: 40;
}

body.gp-rail-resizing .gp-skill-rail,
body.gp-rail-resizing .gp-skill-rail * {
  transition: none;
}

body.gp-rail-resizing {
  cursor: col-resize;
  user-select: none;
}

body.gp-rail-resizing iframe {
  pointer-events: none;
}

.gp-skill-rail-resizer {
  position: absolute;
  top: 0;
  bottom: 0;
  left: 0;
  width: 0.7rem;
  margin-left: -0.35rem;
  z-index: 5;
  cursor: col-resize;
  touch-action: none;
  user-select: none;
}

.gp-skill-rail-resizer::before {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  width: 0.2rem;
  height: 2.75rem;
  transform: translate(-50%, -50%);
  border-radius: 999px;
  background: #3a4149;
}

.gp-skill-rail-resizer::after {
  content: '';
  position: absolute;
  top: 0;
  bottom: 0;
  left: 50%;
  width: 2px;
  transform: translateX(-50%);
  background: transparent;
}

.gp-skill-rail-resizer:hover::before,
.gp-skill-rail-resizer:hover::after,
.gp-skill-rail-resizer:focus-visible::before,
.gp-skill-rail-resizer:focus-visible::after,
body.gp-rail-resizing .gp-skill-rail-resizer::before,
body.gp-rail-resizing .gp-skill-rail-resizer::after {
  background: #34d399;
}

.gp-skill-rail-resizer:focus-visible {
  outline: none;
}

.gp-skill-rail-toolbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.5rem;
  flex-shrink: 0;
  padding: 0.55rem 0.85rem;
  border-bottom: 1px solid #272b31;
  background: #0f1115;
}

.gp-skill-rail-toolbar-label {
  font-size: 0.65rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: #6b7280;
}

.gp-skill-rail-toolbar-actions {
  display: flex;
  align-items: center;
  gap: 0.25rem;
}

.gp-skill-rail-icon-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 1.85rem;
  height: 1.85rem;
  border: 1px solid #272b31;
  border-radius: 0.45rem;
  background: transparent;
  color: #9ca3af;
  cursor: pointer;
}

.gp-skill-rail-icon-btn:hover {
  color: #fff;
  background: #181b20;
  border-color: #3a4149;
}

.gp-skill-rail-body {
  flex: 1 1 auto;
  min-height: 0;
  overflow: auto;
  overflow-anchor: none;
  overscroll-behavior: contain;
  container-type: inline-size;
  container-name: gp-rail;
}

.gp-skill-rail-backdrop {
  display: none;
}

.gp-skill-hero-wrap {
  width: 100%;
  overflow: hidden;
  background: #181b20;
  border-bottom: 1px solid #272b31;
}

.gp-skill-hero-wrap--page {
  border: 1px solid #272b31;
  border-radius: 1rem;
  border-bottom: 1px solid #272b31;
}

.gp-skill-hero {
  display: block;
  width: 100%;
  aspect-ratio: 16 / 9;
  object-fit: cover;
  background: #181b20;
}

.gp-skills-grid .card.is-selected {
  border-color: #34d399;
  box-shadow: 0 0 0 1px rgba(52, 211, 153, 0.25);
}

.gp-feed-sentinel {
  padding: 1.5rem 0 0.5rem;
  text-align: center;
  font-size: 0.75rem;
  color: #6b7280;
}

.gp-ide--rail {
  min-height: 16rem;
  max-height: min(52vh, 32rem);
}

.gp-ide--rail .gp-ide-sidebar {
  flex-basis: 12rem;
  max-width: min(16rem, 55%);
}

.gp-ide--rail.gp-ide-explorer-collapsed .gp-ide-sidebar {
  flex-basis: 2.65rem;
  max-width: 2.65rem;
  min-width: 2.65rem;
}

body.gp-rail-wide .gp-ide--rail {
  max-height: min(62vh, 38rem);
}

/* Viewport sm:/md: breakpoints still see a wide desktop; restack when the column itself is slim. */
@container gp-rail (max-width: 34rem) {
  .gp-rail-meta {
    flex-direction: column;
    align-items: stretch;
  }

  .gp-rail-meta-actions {
    flex-wrap: wrap;
  }

  .gp-ide.gp-ide--rail:not(.gp-ide-fullscreen) .gp-ide-sidebar,
  .gp-ide.gp-ide--rail.gp-ide-explorer-collapsed:not(.gp-ide-fullscreen) .gp-ide-sidebar {
    flex-basis: auto;
    flex: 0 0 auto;
    max-width: 100%;
    min-width: 0;
    width: 100%;
  }
}

/* Fullscreen leaves the rail; these must beat the rail max-height caps. */
.gp-ide--rail.gp-ide-fullscreen,
body.gp-rail-wide .gp-ide--rail.gp-ide-fullscreen,
body.gp-ide-fs-active .gp-ide--rail {
  max-height: none;
  min-height: 0;
  height: auto;
}

@media (min-width: 1024px) {
  body.gp-rail-open .gp-skills-grid {
    grid-template-columns: repeat(auto-fill, minmax(16.5rem, 1fr));
  }
}

@media (max-width: 1023px) {
  body.gp-rail-open {
    overflow: hidden;
  }

  .gp-skill-rail {
    position: fixed;
    top: 0;
    right: 0;
    height: 100vh;
    width: min(100vw, 28rem);
    flex-basis: min(100vw, 28rem);
    z-index: 80;
    box-shadow: -24px 0 48px rgba(0, 0, 0, 0.45);
    transition: none;
  }

  body.gp-rail-wide .gp-skill-rail {
    width: 100vw;
    flex-basis: 100vw;
  }

  .gp-skill-rail-resizer,
  #skill-rail-expand {
    display: none;
  }

  body.gp-rail-open .gp-skill-rail-backdrop {
    display: block;
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.55);
    z-index: 75;
  }

  .gp-skill-rail .gp-ide.gp-ide--rail:not(.gp-ide-markdown):not(.gp-ide-fullscreen),
  .gp-skill-rail .gp-ide.gp-ide--rail.gp-ide-image:not(.gp-ide-fullscreen) {
    height: min(72dvh, 44rem);
    min-height: min(72dvh, 44rem);
    max-height: min(72dvh, 44rem);
  }
}