/* =========================================================
   CYRTIX LAB — CORE SHELL & LAYOUT SYSTEM
   Version: Signature Grade v1.1 (FINAL BASE)
=========================================================== */

/* ---------------------------------------------------------
   ROOT SCOPE & ISOLATION
--------------------------------------------------------- */
html.lab-root,
body.cx-lab-body {
  height: 100%;
  width: 100%;
  margin: 0;
  overflow-y: auto;
  overflow-x: hidden;
  background: var(--cx-steel-950);
  font-family: var(--cx-font-body);
  color: var(--cx-slate-300);
}

/* ---------------------------------------------------------
   LAB APP WRAPPER
--------------------------------------------------------- */
.lab-app {
  height: 100vh;
  width: 100%;
  display: grid;
  grid-template-rows: var(--cx-header-height) 1fr;
  background: var(--cx-steel-950);
  
}

/* ---------------------------------------------------------
   LAB HEADER (FIXED / COMMAND CENTER)
--------------------------------------------------------- */
.lab-header {
  grid-row: 1;
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: center;
  gap: var(--cx-space-6);
  padding: 0 var(--cx-space-6);

  height: var(--cx-header-height);
  background: rgba(13, 20, 36, 0.92);
  border-bottom: 1px solid var(--cx-steel-800);
  box-shadow: var(--cx-shadow-md);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);

  position: relative;
  z-index: 1000;
}

.lab-header {
  max-width: 100%;
}

.lab-header > * {
  min-width: 0;
}

/* Accent scan line */
.lab-header::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  height: 1px;
  background: linear-gradient(
    90deg,
    transparent,
    var(--cx-cyan-500),
    transparent
  );
  opacity: 0.45;
}

/* ---------------------------------------------------------
   HEADER — LOGO
--------------------------------------------------------- */
.lab-header-logo {
  display: flex;
  align-items: center;
  gap: var(--cx-space-3);
}

.lab-header-logo-icon {
  font-size: 1.8rem;
  color: var(--cx-cyan-400);
  filter: drop-shadow(var(--cx-glow-cyan-soft));
}

.lab-header-logo-text {
  font-family: var(--cx-font-mono);
  font-size: var(--cx-text-lg);
  font-weight: var(--cx-weight-bold);
  letter-spacing: 0.08em;
  background: var(--cx-grad-cyberfusion);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}
/* ---------------------------------------------------------
   LAB HEADER NAV (CYBER STYLE)
--------------------------------------------------------- */

.lab-header-nav {
  display: flex;
  gap: var(--cx-space-2);
}

.lab-header-nav-item {
  position: relative;
  padding: var(--cx-space-2) var(--cx-space-4);
  font-family: var(--cx-font-mono);
  font-size: var(--cx-text-sm);
  color: var(--cx-slate-400);
  text-decoration: none;
  border-radius: var(--cx-radius-md);
  transition: all var(--cx-duration-base) var(--cx-ease-smooth);
}

.lab-header-nav-item::after {
  content: "";
  position: absolute;
  left: 50%;
  bottom: 0;
  width: 0%;
  height: 2px;
  background: var(--cx-cyan-400);
  transform: translateX(-50%);
  transition: width 0.25s ease;
}

.lab-header-nav-item:hover {
  color: var(--cx-slate-100);
  background: var(--cx-white-a04);
}

.lab-header-nav-item:hover::after {
  width: 60%;
}

.lab-header-nav-item.active {
  color: var(--cx-cyan-400);
  background: var(--cx-cyan-a10);
}

.lab-header-nav-item.active::after {
  width: 100%;
}

/* ---------------------------------------------------------
   HEADER — ACTIONS / USER
--------------------------------------------------------- */
.lab-header-actions {
  display: flex;
  align-items: center;
  gap: var(--cx-space-3);
}

.lab-header-user {
  display: flex;
  align-items: center;
  gap: var(--cx-space-2);
  padding: var(--cx-space-2) var(--cx-space-3);
  background: var(--cx-white-a04);
  border: 1px solid var(--cx-steel-700);
  border-radius: var(--cx-radius-md);
}

.lab-header-user-avatar {
  width: 1.75rem;
  height: 1.75rem;
  border-radius: var(--cx-radius-full);
  background: var(--cx-grad-cyan);
  color: var(--cx-steel-900);
  font-family: var(--cx-font-mono);
  font-size: var(--cx-text-xs);
  font-weight: var(--cx-weight-bold);

  display: flex;
  align-items: center;
  justify-content: center;
}

/* ---------------------------------------------------------
   LAB WORKSPACE (SCROLL ZONE)
--------------------------------------------------------- */
.lab-workspace {
  grid-row: 2;
  width: 100%;
  height: 100%;
  overflow-y: auto;
  overflow-x: hidden;
  background: var(--cx-steel-950);
}


/* Top glow divider */
.lab-workspace::before {
  content: "";
  position: sticky;
  top: 0;
  height: 1px;
  background: linear-gradient(
    90deg,
    transparent,
    var(--cx-cyan-500),
    transparent
  );
  opacity: 0.25;
  z-index: 5;
}

/* ---------------------------------------------------------
   LAB CONTAINER
--------------------------------------------------------- */
.lab-container {
  width: 100%;
  max-width: 1440px; /* enterprise width */
  margin-inline: auto;
  padding-inline: clamp(1rem, 4vw, 3rem);
  padding-block: clamp(1.5rem, 3vw, 3rem);
  box-sizing: border-box;
}


/* ---------------------------------------------------------
   OPTIONAL CONTEXT RAIL (FUTURE)
--------------------------------------------------------- */
.lab-rail {
  position: fixed;
  top: var(--cx-header-height);
  left: 0;
  bottom: 0;
  width: 260px;

  background: var(--cx-steel-900);
  border-right: 1px solid var(--cx-steel-800);
  padding: var(--cx-space-6);
  overflow-y: auto;

  transform: translateX(-100%);
  transition: transform var(--cx-duration-base) var(--cx-ease-smooth);
  z-index: 900;
}

.lab-rail.active {
  transform: translateX(0);
}

/* ---------------------------------------------------------
   TERMINAL / CYBER BACKGROUND UTILITY
--------------------------------------------------------- */
.lab-terminal-bg {
  background:
    radial-gradient(circle at 20% 80%, var(--cx-cyan-a10), transparent 55%),
    radial-gradient(circle at 80% 25%, var(--cx-crimson-a10), transparent 55%),
    var(--cx-steel-950);
}

/* ---------------------------------------------------------
   RESPONSIVE ADJUSTMENTS
--------------------------------------------------------- */
@media (max-width: 1024px) {
  .lab-header-nav {
    display: none;
  }
}

@media (max-width: 768px) {
  .lab-header {
    padding: 0 var(--cx-space-4);
  }

  .lab-container {
    padding: var(--cx-space-6);
  }
}

/* ---------------------------------------------------------
   ACCESSIBILITY
--------------------------------------------------------- */
.lab-focus-visible:focus-visible {
  outline: 2px solid var(--cx-cyan-500);
  outline-offset: 2px;
}

@media (prefers-reduced-motion: reduce) {
  * {
    transition: none !important;
    animation: none !important;
  }
}



/* =========================================================
   LAB FILTERS — ADVANCED CONTROL BAR
=========================================================== */

.lab-filters-advanced {
  background: var(--cx-glass-dark);
  border: 1px solid var(--cx-steel-800);
  border-radius: var(--cx-radius-lg);
  padding: var(--cx-space-6);
  margin-top: var(--cx-space-4);
}

/* ROW LAYOUT */
.lab-filters-row {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: var(--cx-space-6);
  align-items: end;
}

/* FILTER GROUP */
.lab-filter-group {
  display: flex;
  flex-direction: column;
  gap: var(--cx-space-2);
  min-width: 0;
}

/* LABEL */
.lab-filter-label {
  font-family: var(--cx-font-mono);
  font-size: var(--cx-text-xs);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--cx-slate-500);
}

/* SELECT */
.lab-filter-select {
  width: 100%;
  background: var(--cx-steel-900);
  border: 1px solid var(--cx-steel-800);
  border-radius: var(--cx-radius-md);
  padding: var(--cx-space-3) var(--cx-space-4);

  font-family: var(--cx-font-body);
  font-size: var(--cx-text-sm);
  color: var(--cx-slate-300);

  cursor: pointer;
  transition: 
    border-color var(--cx-duration-base) var(--cx-ease-smooth),
    box-shadow var(--cx-duration-base) var(--cx-ease-smooth);
}

/* HOVER / FOCUS */
.lab-filter-select:hover {
  border-color: var(--cx-cyan-400);
}

.lab-filter-select:focus {
  outline: none;
  border-color: var(--cx-cyan-400);
  box-shadow: var(--cx-glow-cyan-soft);
}

/* OPTION */
.lab-filter-select option {
  background: var(--cx-steel-900);
  color: var(--cx-slate-300);
}