/* =========================================================
   BEOMONNURI v5 — CSS ANCHOR POSITIONING (2025-2026 spec)
   Smart popovers that automatically follow their anchor and
   flip away from viewport edges. Zero JS for positioning.

   Spec: https://drafts.csswg.org/css-anchor-position-1/
   Support: Chrome 125+, Edge 125+, Safari 26+ (Firefox: in-progress)
   ========================================================= */

/* ===== Detect support ===== */
@supports (anchor-name: --x) {
  html { --anchor-supported: 1; }
}

/* ===== Anchor target — the element being followed ===== */
[data-anchor] {
  /* Each anchor will get its name set inline via JS:
     style="anchor-name: --info-X" */
  cursor: help;
  position: relative;
  border-bottom: 1px dotted currentColor;
  transition: color 0.2s;
}
[data-anchor]:hover {
  color: var(--acid);
}
/* Subtle "?" affordance for any data-anchor */
[data-anchor]::after {
  content: '';
  display: inline-block;
  width: 4px; height: 4px;
  background: var(--acid);
  border-radius: 50%;
  margin-left: 4px;
  vertical-align: super;
  opacity: 0.5;
  transition: opacity 0.2s, transform 0.2s;
}
[data-anchor]:hover::after {
  opacity: 1;
  transform: scale(1.4);
}

/* ===== The popover ===== */
.info-popover {
  position: fixed;       /* will be overridden by anchor positioning */
  top: anchor(bottom);   /* default below anchor */
  left: anchor(left);
  margin-top: 12px;
  width: 280px;
  background: rgba(13, 13, 13, 0.95);
  backdrop-filter: blur(20px) saturate(140%);
  -webkit-backdrop-filter: blur(20px) saturate(140%);
  color: var(--bg);
  border: 1px solid rgba(146, 18, 48, 0.5);
  padding: 16px 18px;
  font-family: var(--sans);
  font-size: 13px;
  line-height: 1.5;
  letter-spacing: -0.005em;
  z-index: 9000;

  /* Hide by default — JS opens via .open class */
  opacity: 0;
  visibility: hidden;
  transform: translateY(-6px) scale(0.98);
  transition: opacity 0.25s cubic-bezier(.4,0,.1,1),
              transform 0.25s cubic-bezier(.4,0,.1,1),
              visibility 0s linear 0.25s;
  pointer-events: none;

  /* Glow */
  box-shadow:
    0 20px 50px -12px rgba(13,13,13,0.6),
    0 0 0 1px rgba(146,18,48,0.2),
    0 0 24px rgba(146,18,48,0.15);

  /* AUTO-FLIP: try multiple positions if default doesn't fit */
  position-try-fallbacks:
    --bottom-right,
    --top-left,
    --top-right,
    flip-block,
    flip-inline;
}
.info-popover.open {
  opacity: 1;
  visibility: visible;
  transform: translateY(0) scale(1);
  transition-delay: 0s;
  pointer-events: auto;
}

/* Try-fallback definitions */
@position-try --bottom-right {
  top: anchor(bottom);
  left: auto;
  right: anchor(right);
  margin-top: 12px;
}
@position-try --top-left {
  top: auto;
  bottom: anchor(top);
  left: anchor(left);
  margin-top: 0;
  margin-bottom: 12px;
}
@position-try --top-right {
  top: auto;
  bottom: anchor(top);
  left: auto;
  right: anchor(right);
  margin-top: 0;
  margin-bottom: 12px;
}

/* Acid connector line at top */
.info-popover::before {
  content: '';
  position: absolute;
  top: -1px; left: 0; right: 0; height: 2px;
  background: linear-gradient(90deg, transparent, var(--acid), transparent);
}

/* ===== Popover content components ===== */
.info-popover .ip-label {
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--acid-bright);
  margin-bottom: 8px;
  display: flex;
  align-items: center;
  gap: 8px;
}
.info-popover .ip-label::before {
  content: '';
  width: 6px; height: 6px;
  background: var(--acid-bright);
  border-radius: 50%;
  animation: blink 1.5s ease-in-out infinite;
}
.info-popover .ip-value {
  font-family: var(--display);
  font-weight: 900;
  font-size: 32px;
  letter-spacing: -0.04em;
  line-height: 1;
  color: var(--bg);
  margin-bottom: 8px;
  font-variant-numeric: tabular-nums;
}
.info-popover .ip-value .unit {
  font-family: var(--mono);
  font-size: 0.35em;
  color: var(--acid-bright);
  letter-spacing: 0;
  margin-left: 4px;
  font-weight: 500;
}
.info-popover .ip-chart {
  width: 100%;
  height: 56px;
  margin: 10px 0;
  display: block;
}
.info-popover .ip-desc {
  font-size: 12.5px;
  color: rgba(246, 244, 239, 0.7);
  line-height: 1.55;
  margin-bottom: 8px;
}
.info-popover .ip-meta {
  display: flex;
  justify-content: space-between;
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: rgba(246, 244, 239, 0.4);
  padding-top: 8px;
  border-top: 1px solid rgba(246, 244, 239, 0.1);
}
.info-popover .ip-meta .ok {
  color: #10b981;
}
.info-popover .ip-meta .warn {
  color: var(--acid-bright);
}

/* ===== Variants ===== */

/* Wide popover (for richer product cards / partner info) */
.info-popover.wide {
  width: 360px;
  padding: 20px 22px;
}
.info-popover.wide .ip-value {
  font-size: 26px;
}

/* Bright (light background variant) — used over dark sections */
.info-popover.bright {
  background: rgba(246, 244, 239, 0.96);
  backdrop-filter: blur(20px) saturate(140%);
  color: var(--paper);
  border-color: rgba(13, 13, 13, 0.15);
  box-shadow:
    0 20px 50px -12px rgba(13,13,13,0.18),
    0 0 0 1px rgba(13,13,13,0.05);
}
.info-popover.bright .ip-desc {
  color: var(--mute);
}
.info-popover.bright .ip-value {
  color: var(--paper);
}
.info-popover.bright .ip-meta {
  color: var(--mute);
  border-top-color: var(--mute-line);
}

/* ===== Fallback for browsers without anchor positioning ===== */
@supports not (anchor-name: --x) {
  /* JS will handle positioning instead.
     Just style the popover; it'll be position:fixed with manual coords. */
  .info-popover {
    top: 0; left: 0;
    transform: translate(var(--fb-x, 0), var(--fb-y, 0)) translateY(-6px) scale(0.98);
  }
  .info-popover.open {
    transform: translate(var(--fb-x, 0), var(--fb-y, 0)) translateY(0) scale(1);
  }
}

/* ===== Mobile: disable hover-based anchors, show inline ===== */
@media (hover: none), (max-width: 700px) {
  [data-anchor] { border-bottom: 0; cursor: default; }
  [data-anchor]::after { display: none; }
  .info-popover { display: none; }
}

/* ===== Reduced motion ===== */
@media not all and (prefers-reduced-motion: reduce) {
  .info-popover {
    transition: opacity 0.1s, visibility 0s;
    transform: none !important;
  }
}