/* ==========================================================================
   qsim.css — scoped styles for /qsim (layouts/qsim/list.html)
   --------------------------------------------------------------------------
   qBraid-inspired research-workspace page for QuFabric qsim. Built on --hd-*
   tokens and HD utilities; adds only route-specific quantum visual, cards,
   engine grids, comparison table, and responsive behavior.
   ========================================================================== */

.section_qsim_hero {
  position: relative;
  overflow: hidden;
  color: var(--hd-color-white);
  background:
    radial-gradient(70% 80% at 76% 18%, color-mix(in srgb, var(--hd-qsim-accent-purple) 20%, transparent), transparent 62%),
    radial-gradient(64% 78% at 14% 30%, color-mix(in srgb, var(--hd-qsim-accent-cyan) 12%, transparent), transparent 68%),
    linear-gradient(180deg, var(--hd-color-black) 0%, var(--hd-qsim-bg-deep) 58%, var(--hd-color-accent) 100%);
}

.qsim-hero-grid-bg {
  position: absolute;
  inset: 0;
  pointer-events: none;
  opacity: 0.42;
  background-image:
    linear-gradient(to right, color-mix(in srgb, var(--hd-color-white) 8%, transparent) 1px, transparent 1px),
    linear-gradient(to bottom, color-mix(in srgb, var(--hd-color-white) 8%, transparent) 1px, transparent 1px);
  background-size: 36px 36px;
  -webkit-mask-image: radial-gradient(90% 90% at 50% 20%, black 34%, transparent 82%);
  mask-image: radial-gradient(90% 90% at 50% 20%, black 34%, transparent 82%);
}

.qsim-hero-layout {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: minmax(0, 0.92fr) minmax(0, 1.08fr);
  gap: var(--hd-space-xl);
  align-items: center;
}

.qsim-hero-copy {
  max-width: 42rem;
}

.section_qsim_hero h1,
.section_qsim_hero .hd-h1,
.section_qsim_hero .hd-h2,
.section_qsim_hero .hd-h3 {
  color: var(--hd-color-white);
}

.section_qsim_hero .hd-text-muted,
.qsim-hero-trust-item,
.qsim-image-caption {
  color: var(--hd-color-neutral-300);
}

.qsim-hero-trust {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem 1.25rem;
}

.qsim-hero-trust-item {
  display: flex;
  align-items: center;
  gap: 0.4rem;
}

.qsim-hero-trust-icon {
  width: 1rem;
  height: 1rem;
  flex: none;
  filter: invert(1);
  opacity: 0.82;
}

.qsim-hero-promo {
  display: inline-block;
  padding: 0.45rem 1rem;
  border: var(--hd-button-border) solid color-mix(in srgb, var(--hd-color-white) 16%, transparent);
  border-radius: 999rem;
  color: var(--hd-color-white);
  background: color-mix(in srgb, var(--hd-color-white) 10%, transparent);
}

.qsim-hero-promo p {
  margin: 0;
}

.qsim-visual-card {
  position: relative;
  min-height: 34rem;
  border: var(--hd-button-border) solid color-mix(in srgb, var(--hd-color-white) 16%, transparent);
  border-radius: 1.25rem;
  overflow: hidden;
  background:
    linear-gradient(180deg, color-mix(in srgb, var(--hd-color-black) 10%, transparent), color-mix(in srgb, var(--hd-color-black) 28%, transparent)),
    var(--hd-color-accent);
  box-shadow: 0 2rem 5rem rgba(0, 0, 0, 0.32);
}

.qsim-quantum-image {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  min-height: 34rem;
  object-fit: cover;
  display: block;
  filter: saturate(1.08) contrast(1.02);
}

.qsim-visual-overlay {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: flex-end;
  justify-content: flex-start;
  padding: 1rem;
  background:
    linear-gradient(180deg, transparent 34%, color-mix(in srgb, var(--hd-color-black) 60%, transparent) 100%),
    radial-gradient(62% 70% at 100% 0%, color-mix(in srgb, var(--hd-qsim-accent-cyan) 18%, transparent), transparent 70%);
}

.qsim-visual-window {
  width: min(26rem, 100%);
  border: var(--hd-button-border) solid color-mix(in srgb, var(--hd-color-white) 18%, transparent);
  border-radius: var(--hd-radius);
  padding: 1rem;
  background: color-mix(in srgb, var(--hd-color-accent) 84%, transparent);
  backdrop-filter: blur(14px);
}

.qsim-window-top {
  display: flex;
  gap: 0.35rem;
  margin-bottom: 1rem;
}

.qsim-window-top span {
  width: 0.55rem;
  height: 0.55rem;
  border-radius: 50%;
  background: var(--hd-color-neutral-300);
  opacity: 0.8;
}

.qsim-job-row {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr) auto;
  gap: 0.75rem;
  align-items: center;
}

.qsim-job-row strong {
  display: block;
  color: var(--hd-color-white);
  font-size: var(--hd-text-sm);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.qsim-status-dot {
  width: 0.7rem;
  height: 0.7rem;
  border-radius: 50%;
  background: var(--hd-qsim-ready);
  box-shadow: 0 0 1rem var(--hd-qsim-ready);
}

.qsim-status-pill,
.qsim-chip {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 999rem;
  font-size: var(--hd-text-tiny);
  font-weight: var(--hd-weight-medium);
  line-height: 1;
  white-space: nowrap;
}

.qsim-status-pill {
  padding: 0.35rem 0.65rem;
  color: var(--hd-color-white);
  background: color-mix(in srgb, var(--hd-color-white) 14%, transparent);
}

.qsim-queue-bars {
  display: grid;
  gap: 0.45rem;
  margin-top: 1rem;
}

.qsim-queue-bars span {
  height: 0.38rem;
  width: var(--qsim-bar);
  border-radius: 999rem;
  background: linear-gradient(90deg, var(--hd-qsim-ready), var(--hd-qsim-accent-cyan));
  opacity: 0.88;
}

.qsim-image-caption {
  margin-block: 0.75rem 0;
}

.section_qsim_stats {
  margin-top: -1px;
  background: var(--hd-color-black);
  color: var(--hd-color-white);
}

.qsim-stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 0.375rem;
}

.qsim-stat-card {
  border: var(--hd-button-border) solid color-mix(in srgb, var(--hd-color-white) 12%, transparent);
  border-radius: var(--hd-radius);
  padding: 1.25rem;
  background: color-mix(in srgb, var(--hd-color-white) 6%, transparent);
}

.qsim-stat-card .hd-h3 {
  color: var(--hd-color-white);
}

.qsim-section-heading {
  max-width: var(--hd-width-lg);
}

.qsim-section-heading.hd-align-center {
  margin-inline: auto;
}

.qsim-workflow-grid,
.qsim-engine-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 0.375rem;
}

.qsim-workflow-card,
.qsim-platform-card,
.qsim-engine-card {
  border: var(--hd-button-border) solid var(--hd-color-neutral-200);
  border-radius: var(--hd-radius);
  padding: 1.25rem;
  background: var(--hd-color-white);
  transition: border-color var(--hd-transition), box-shadow var(--hd-transition),
    transform var(--hd-transition);
}

.qsim-workflow-card:hover,
.qsim-platform-card:hover,
.qsim-engine-card:hover {
  border-color: var(--hd-color-neutral-400);
  box-shadow: var(--hd-shadow-sm);
  transform: translateY(-1px);
}

.qsim-card-number {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 2.5rem;
  height: 2.5rem;
  border-radius: 50%;
  color: var(--hd-color-white);
  background: var(--hd-color-accent);
  font-family: var(--hd-font-badge);
  font-size: var(--hd-text-sm);
}

.qsim-persona-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0.375rem;
}

.qsim-persona-card {
  min-height: 25rem;
  border-radius: var(--hd-radius);
  padding: 1.5rem;
  color: var(--hd-color-white);
  background:
    radial-gradient(90% 70% at 100% 0%, color-mix(in srgb, var(--hd-qsim-accent-cyan) 18%, transparent), transparent 72%),
    linear-gradient(180deg, var(--hd-qsim-panel) 0%, var(--hd-color-accent) 100%);
}

.qsim-persona-card h3 {
  color: var(--hd-color-white);
}

.qsim-persona-card .hd-text-muted {
  color: var(--hd-color-neutral-300);
  opacity: 1;
}

.qsim-chip-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
}

.qsim-chip {
  padding: 0.42rem 0.65rem;
  color: var(--hd-color-white);
  border: var(--hd-button-border) solid color-mix(in srgb, var(--hd-color-white) 18%, transparent);
  background: color-mix(in srgb, var(--hd-color-white) 10%, transparent);
}

.qsim-platform-layout {
  display: grid;
  grid-template-columns: minmax(0, 0.95fr) minmax(20rem, 0.75fr);
  gap: var(--hd-space-xl);
  align-items: end;
}

.qsim-console-card {
  border-radius: 1rem;
  padding: 1rem;
  color: var(--hd-color-white);
  background: var(--hd-color-accent);
  box-shadow: var(--hd-shadow-md);
}

.qsim-console-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding-bottom: 0.75rem;
  border-bottom: var(--hd-button-border) solid color-mix(in srgb, var(--hd-color-white) 12%, transparent);
  font-family: var(--hd-font-badge);
  font-size: var(--hd-text-sm);
}

.qsim-console-card pre {
  margin: 0;
  padding-top: 1rem;
  overflow: auto;
  font-family: var(--hd-font-badge);
  font-size: var(--hd-text-sm);
  line-height: 1.7;
  color: var(--hd-color-neutral-300);
}

.qsim-platform-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0.375rem;
}

.qsim-engine-card {
  background: var(--hd-color-neutral-50);
}

.qsim-engine-list {
  display: flex;
  flex-wrap: wrap;
  gap: 0.45rem;
}

.qsim-engine-list span {
  display: inline-flex;
  padding: 0.45rem 0.7rem;
  border: var(--hd-button-border) solid var(--hd-color-neutral-300);
  border-radius: 999rem;
  background: var(--hd-color-white);
  font-size: var(--hd-text-sm);
  font-weight: var(--hd-weight-medium);
}

.qsim-compare-table {
  overflow: hidden;
  border: var(--hd-button-border) solid var(--hd-color-neutral-200);
  border-radius: var(--hd-radius);
  background: var(--hd-color-white);
}

.qsim-compare-row {
  display: grid;
  grid-template-columns: 0.8fr 1.1fr 1.1fr;
}

.qsim-compare-row > div {
  padding: 1rem;
  border-block-start: var(--hd-button-border) solid var(--hd-color-neutral-200);
  border-inline-start: var(--hd-button-border) solid var(--hd-color-neutral-200);
  font-size: var(--hd-text-sm);
}

.qsim-compare-row > div:first-child {
  border-inline-start: 0;
  font-weight: var(--hd-weight-medium);
}

.qsim-compare-head > div {
  border-block-start: 0;
  color: var(--hd-color-white);
  background: var(--hd-color-accent);
  font-weight: var(--hd-weight-medium);
}

.qsim-faq-box {
  width: 100%;
  max-width: var(--hd-width-lg);
  margin-inline: auto;
  border: var(--hd-button-border) solid var(--hd-color-neutral-200);
  border-radius: var(--hd-radius);
  padding: 1.5rem;
  background: var(--hd-color-white);
}

.qsim-cta {
  position: relative;
  overflow: hidden;
}

.qsim-cta::after {
  content: "";
  position: absolute;
  inset: auto -10% -55% auto;
  width: 28rem;
  height: 28rem;
  border-radius: 50%;
  background: radial-gradient(circle, color-mix(in srgb, var(--hd-qsim-accent-cyan) 24%, transparent), transparent 68%);
  pointer-events: none;
}

.qsim-cta > * {
  position: relative;
  z-index: 1;
}

.qsim-cta-heading em {
  font-style: normal;
  color: var(--hd-color-neutral-300);
}

@media screen and (max-width: 991px) {
  .qsim-hero-layout,
  .qsim-platform-layout {
    grid-template-columns: 1fr;
  }

  .qsim-hero-copy {
    max-width: var(--hd-width-lg);
  }

  .qsim-stats-grid,
  .qsim-workflow-grid,
  .qsim-engine-grid,
  .qsim-platform-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .qsim-persona-grid {
    grid-template-columns: 1fr;
  }
}

@media screen and (max-width: 767px) {
  .qsim-visual-card,
  .qsim-quantum-image {
    min-height: 26rem;
  }

  .qsim-stats-grid,
  .qsim-workflow-grid,
  .qsim-engine-grid,
  .qsim-platform-grid {
    grid-template-columns: 1fr;
  }

  .qsim-compare-row {
    grid-template-columns: 1fr;
  }

  .qsim-compare-row > div {
    border-inline-start: 0;
  }

  .qsim-compare-head {
    display: none;
  }
}

@media screen and (max-width: 479px) {
  .qsim-visual-card,
  .qsim-quantum-image {
    min-height: 21rem;
  }

  .qsim-visual-overlay {
    padding: 0.75rem;
  }

  .qsim-job-row {
    grid-template-columns: auto minmax(0, 1fr);
  }

  .qsim-job-row .qsim-status-pill {
    grid-column: 2;
    justify-self: start;
  }

  .qsim-faq-box {
    padding: 1rem;
  }
}

/* ==========================================================================
   "Under construction" interstitial — opens on page load over a blurred
   page; dismissible via close button, backdrop, Escape, or dismiss button.
   Mirrors the CaaS notice, scoped to /qsim with the QuFabric purple accent.
   Logical properties keep RTL (Persian) mirroring correct.
   ========================================================================== */
.qsim-construction-modal {
  position: fixed;
  inset: 0;
  z-index: calc(var(--hd-z-nav) + 2);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1.25rem;
  background-color: #000d14cc;
  -webkit-backdrop-filter: blur(0.5rem);
  backdrop-filter: blur(0.5rem);
}

.qsim-construction-enter,
.qsim-construction-leave {
  transition: opacity 0.42s ease;
}

.qsim-construction-enter .qsim-construction-panel {
  transition: transform 0.42s ease, opacity 0.42s ease;
}

.qsim-construction-leave .qsim-construction-panel {
  transition: transform 0.28s ease, opacity 0.28s ease;
}

.qsim-construction-enter-start,
.qsim-construction-leave-end {
  opacity: 0;
}

.qsim-construction-enter-start .qsim-construction-panel,
.qsim-construction-leave-end .qsim-construction-panel {
  opacity: 0;
  transform: translateY(1rem) scale(0.98);
}

.qsim-construction-enter-end,
.qsim-construction-leave-start {
  opacity: 1;
}

.qsim-construction-enter-end .qsim-construction-panel,
.qsim-construction-leave-start .qsim-construction-panel {
  opacity: 1;
  transform: translateY(0) scale(1);
}

.qsim-construction-panel {
  position: relative;
  width: min(30rem, 100%);
  border: var(--hd-input-border) solid var(--hd-color-neutral-200);
  border-radius: var(--hd-radius);
  background-color: var(--hd-color-white);
  box-shadow: var(--hd-nav-panel-shadow);
  padding: 2.25rem;
  text-align: center;
}

.qsim-construction-icon {
  width: 2.75rem;
  height: 2.75rem;
  margin-block-end: 1.25rem;
  color: var(--hd-qsim-accent-purple, #6f6cff);
}

.qsim-construction-panel h2 {
  margin: 0 0 0.5rem;
}

.qsim-construction-panel p {
  max-width: 24rem;
  margin: 0 auto;
  color: var(--hd-color-neutral-900);
}

.qsim-construction-actions {
  margin-block-start: 1.75rem;
}

.qsim-construction-close {
  position: absolute;
  inset-block-start: 0.85rem;
  inset-inline-end: 0.85rem;
  width: 2.25rem;
  height: 2.25rem;
  border: var(--hd-input-border) solid var(--hd-color-neutral-200);
  border-radius: 50%;
  background-color: var(--hd-color-white);
  color: var(--hd-color-black);
  font: inherit;
  font-size: 1.5rem;
  line-height: 1;
  cursor: pointer;
  transition: background-color var(--hd-transition), opacity var(--hd-transition);
}

.qsim-construction-close:hover {
  background-color: var(--hd-color-neutral-100);
  opacity: 0.85;
}