/* ============================================================
   fx.css — Shared visual effect classes
   ============================================================ */

/* ----------------------------------------------------------
   Corner Bracket Frame
   ---------------------------------------------------------- */
.bracket-frame {
  position: relative;
}

.bracket-frame::before,
.bracket-frame::after {
  content: '';
  position: absolute;
  width: 16px;
  height: 16px;
  pointer-events: none;
  transition: border-color var(--transition-med), box-shadow var(--transition-med);
}

.bracket-frame::before {
  top: 0;
  left: 0;
  border-top: 1px solid rgba(0, 200, 224, 0.3);
  border-left: 1px solid rgba(0, 200, 224, 0.3);
}

.bracket-frame::after {
  top: 0;
  right: 0;
  border-top: 1px solid rgba(0, 200, 224, 0.3);
  border-right: 1px solid rgba(0, 200, 224, 0.3);
}

/* Inner bottom corners via a wrapper with extra pseudo-elements */
.bracket-frame .bracket-inner::before,
.bracket-frame .bracket-inner::after {
  content: '';
  position: absolute;
  width: 16px;
  height: 16px;
  pointer-events: none;
  transition: border-color var(--transition-med);
}

.bracket-frame .bracket-inner::before {
  bottom: 0;
  left: 0;
  border-bottom: 1px solid rgba(0, 200, 224, 0.3);
  border-left: 1px solid rgba(0, 200, 224, 0.3);
}

.bracket-frame .bracket-inner::after {
  bottom: 0;
  right: 0;
  border-bottom: 1px solid rgba(0, 200, 224, 0.3);
  border-right: 1px solid rgba(0, 200, 224, 0.3);
}

/* Self-contained bracket-frame using outline trick for all 4 corners */
.bracket-frame--full {
  position: relative;
}

.bracket-frame--full::before,
.bracket-frame--full::after {
  content: '';
  position: absolute;
  pointer-events: none;
  transition: opacity var(--transition-med);
}

/* Top-left + top-right corners via ::before */
.bracket-frame--full::before {
  top: 0;
  left: 0;
  right: 0;
  height: 16px;
  border-top: 1px solid rgba(0, 200, 224, 0.35);
  border-left: 1px solid rgba(0, 200, 224, 0.35);
  clip-path: polygon(0 0, 16px 0, 16px 100%, 100% 100%, 100% 0, calc(100% - 16px) 0, calc(100% - 16px) 100%, 0 100%);
}

/* Bottom-left + bottom-right corners via ::after */
.bracket-frame--full::after {
  bottom: 0;
  left: 0;
  right: 0;
  height: 16px;
  border-bottom: 1px solid rgba(0, 200, 224, 0.35);
  border-left: 1px solid rgba(0, 200, 224, 0.35);
  clip-path: polygon(0 0, 16px 0, 16px 100%, 100% 100%, 100% 0, calc(100% - 16px) 0, calc(100% - 16px) 100%, 0 100%);
}

.bracket-frame--full:hover::before,
.bracket-frame--full:hover::after {
  border-color: var(--accent-cyan);
}

/* Simplified 4-corner bracket using box-shadow technique */
.bracket-corner {
  position: relative;
  --bw: 1px;   /* border width */
  --bs: 14px;  /* bracket size */
  --bc: rgba(0, 200, 224, 0.35); /* bracket color */
}

.bracket-corner::before {
  content: '';
  position: absolute;
  inset: 0;
  pointer-events: none;
  background:
    linear-gradient(var(--bc), var(--bc)) top left / var(--bs) var(--bw) no-repeat,
    linear-gradient(var(--bc), var(--bc)) top left / var(--bw) var(--bs) no-repeat,
    linear-gradient(var(--bc), var(--bc)) top right / var(--bs) var(--bw) no-repeat,
    linear-gradient(var(--bc), var(--bc)) top right / var(--bw) var(--bs) no-repeat,
    linear-gradient(var(--bc), var(--bc)) bottom left / var(--bs) var(--bw) no-repeat,
    linear-gradient(var(--bc), var(--bc)) bottom left / var(--bw) var(--bs) no-repeat,
    linear-gradient(var(--bc), var(--bc)) bottom right / var(--bs) var(--bw) no-repeat,
    linear-gradient(var(--bc), var(--bc)) bottom right / var(--bw) var(--bs) no-repeat;
  transition: background var(--transition-med);
}

.bracket-corner:hover::before,
.bracket-corner.active::before {
  --bc: var(--accent-cyan);
}

/* ----------------------------------------------------------
   Glow Text
   ---------------------------------------------------------- */
.glow-text {
  text-shadow: var(--glow-cyan);
}

.glow-text--green {
  text-shadow: var(--glow-green);
}

.glow-text--amber {
  text-shadow: var(--glow-amber);
}

/* ----------------------------------------------------------
   Data Line (animated section divider)
   ---------------------------------------------------------- */
.data-line {
  position: relative;
  width: 100%;
  height: 1px;
  background: var(--border-mid);
  overflow: hidden;
}

.data-line::after {
  content: '';
  position: absolute;
  top: 0;
  left: -30%;
  width: 30%;
  height: 100%;
  background: linear-gradient(
    to right,
    transparent,
    var(--accent-cyan),
    transparent
  );
  animation: data-line-sweep 3s linear infinite;
}

@keyframes data-line-sweep {
  0%   { left: -30%; }
  100% { left: 110%; }
}

.data-line--label {
  display: flex;
  align-items: center;
  gap: 16px;
}

.data-line--label .data-line {
  flex: 1;
}

.data-line--label span {
  font-family: var(--font-mono);
  font-size: 0.65rem;
  color: var(--text-muted);
  white-space: nowrap;
  letter-spacing: 0.1em;
}

/* ----------------------------------------------------------
   Status Dot
   ---------------------------------------------------------- */
.status-dot {
  display: inline-block;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background-color: var(--accent-green);
  box-shadow: var(--glow-green);
  animation: status-pulse 2.4s ease-in-out infinite;
  flex-shrink: 0;
}

@keyframes status-pulse {
  0%, 100% { opacity: 1; box-shadow: var(--glow-green); }
  50%       { opacity: 0.5; box-shadow: none; }
}

/* ----------------------------------------------------------
   Grid Background
   ---------------------------------------------------------- */
.grid-bg {
  background-image:
    linear-gradient(var(--border-subtle) 1px, transparent 1px),
    linear-gradient(to right, var(--border-subtle) 1px, transparent 1px);
  background-size: 40px 40px;
}

/* ----------------------------------------------------------
   HUD Bracket Header
   ---------------------------------------------------------- */
.hud-header {
  display: inline-block;
  padding-left: 14px;
  border-left: 2px solid var(--accent-cyan);
  position: relative;
}

.hud-header::before {
  content: '';
  position: absolute;
  top: 0;
  left: 14px;
  right: 0;
  height: 1px;
  background: var(--accent-cyan);
  opacity: 0.4;
}

.hud-header__label {
  display: block;
  font-family: var(--font-mono);
  font-size: 0.65rem;
  color: var(--text-muted);
  letter-spacing: 0.15em;
  text-transform: uppercase;
  margin-bottom: 4px;
}

.hud-header__title {
  display: block;
  font-family: var(--font-display);
  font-weight: 700;
  line-height: 1.1;
  color: var(--text-primary);
}

/* ----------------------------------------------------------
   Badge / Tag
   ---------------------------------------------------------- */
.badge {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 0.65rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  padding: 3px 8px;
  border: 1px solid var(--border-mid);
  background: var(--bg-elevated);
  color: var(--text-secondary);
  border-radius: var(--radius-sm);
  transition: border-color var(--transition-fast), color var(--transition-fast), box-shadow var(--transition-fast);
}

.badge:hover {
  border-color: var(--accent-cyan);
  color: var(--accent-cyan);
  box-shadow: var(--glow-cyan);
}

.badge--cyan {
  border-color: var(--accent-cyan);
  color: var(--accent-cyan);
}

.badge--green {
  border-color: var(--accent-green);
  color: var(--accent-green);
}

/* ----------------------------------------------------------
   Button
   ---------------------------------------------------------- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  padding: 9px 18px;
  border: 1px solid var(--accent-cyan);
  color: var(--accent-cyan);
  background: transparent;
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition:
    background var(--transition-fast),
    color var(--transition-fast),
    box-shadow var(--transition-fast);
  min-height: 44px;
}

.btn:hover,
.btn:focus-visible {
  background: var(--accent-cyan);
  color: var(--bg-primary);
  box-shadow: var(--glow-cyan);
}

.btn--ghost {
  border-color: var(--border-mid);
  color: var(--text-secondary);
}

.btn--ghost:hover {
  border-color: var(--accent-cyan);
  color: var(--accent-cyan);
  background: transparent;
  box-shadow: none;
}

.btn--green {
  border-color: var(--accent-green);
  color: var(--accent-green);
}

.btn--green:hover {
  background: var(--accent-green);
  color: var(--bg-primary);
  box-shadow: var(--glow-green);
}