/* ==========================================================================
   GARAGE GALS . BUTTERE-CARD with GG FLARE
   --------------------------------------------------------------------------
   The verbatim /buttere-card cream/pearl tile system (L-brackets, cursor
   spotlight, 3D tilt, click-to-expand accordion, diagonal sweep), retuned to
   Garage Gals red and given the signature glowing red-to-amber gradient
   border that Sammy built on the old site. Structure, bracket sizes (22/32px),
   and easings are kept exactly per the skill; only colors change, plus the
   added glow border. Class prefix bt-card-* (shared with the skill).
   ========================================================================== */

.bt-card-grid {
  /* GG flare palette (swapped from butter to red) */
  --card-warm: 230, 58, 45;          /* GG red as RGB */
  --card-accent: #E63A2D;
  --card-deep: #B81E12;              /* darker red for hover brackets */
  --card-cream-top: #FDFBF6;
  --card-cream-bottom: #F5EFE4;
  --card-hover-top: #FFFFFF;
  --card-hover-bottom: #F4EAD9;
  --card-text: #1A1A1A;
  --card-text-soft: rgba(26, 26, 26, 0.74);
  --card-radius: 16px;
  --card-ease: cubic-bezier(0.16, 1, 0.3, 1);
  /* the glowing flame border gradient */
  --card-flare: linear-gradient(120deg, #8B0000 0%, #E63A2D 30%, #FF6F3C 55%, #FFB155 78%, #E63A2D 100%);
}

.bt-card-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 18px;
  align-items: stretch;
  perspective: 1200px;
}
@media (max-width: 1024px) { .bt-card-grid { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 560px)  { .bt-card-grid { grid-template-columns: 1fr; } }

.bt-card-grid--cols-4 { grid-template-columns: repeat(4, 1fr); }
@media (max-width: 1024px) { .bt-card-grid--cols-4 { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 560px)  { .bt-card-grid--cols-4 { grid-template-columns: 1fr; } }

/* ----- Base card ----- */
.bt-card {
  --mx: 50%;
  --my: 50%;
  position: relative;
  align-self: stretch;
  min-height: 210px;
  border: 1px solid rgba(var(--card-warm), 0.40);
  border-radius: var(--card-radius);
  padding: 30px 22px 28px;
  cursor: pointer;
  overflow: hidden;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  transform-style: preserve-3d;
  will-change: transform;
  background:
    radial-gradient(600px circle at var(--mx) var(--my), rgba(255, 234, 214, 0.55), transparent 40%),
    linear-gradient(rgba(var(--card-warm), 0.85), rgba(var(--card-warm), 0.85)) top    12px left  12px / 22px 1px no-repeat,
    linear-gradient(rgba(var(--card-warm), 0.85), rgba(var(--card-warm), 0.85)) top    12px left  12px / 1px 22px no-repeat,
    linear-gradient(rgba(var(--card-warm), 0.85), rgba(var(--card-warm), 0.85)) top    12px right 12px / 22px 1px no-repeat,
    linear-gradient(rgba(var(--card-warm), 0.85), rgba(var(--card-warm), 0.85)) top    12px right 12px / 1px 22px no-repeat,
    linear-gradient(rgba(var(--card-warm), 0.85), rgba(var(--card-warm), 0.85)) bottom 12px left  12px / 22px 1px no-repeat,
    linear-gradient(rgba(var(--card-warm), 0.85), rgba(var(--card-warm), 0.85)) bottom 12px left  12px / 1px 22px no-repeat,
    linear-gradient(rgba(var(--card-warm), 0.85), rgba(var(--card-warm), 0.85)) bottom 12px right 12px / 22px 1px no-repeat,
    linear-gradient(rgba(var(--card-warm), 0.85), rgba(var(--card-warm), 0.85)) bottom 12px right 12px / 1px 22px no-repeat,
    linear-gradient(180deg, var(--card-cream-top) 0%, var(--card-cream-bottom) 100%);
  box-shadow:
    inset 0 1px 0 rgba(255, 255, 255, 0.65),
    0 0 0 1px rgba(var(--card-warm), 0.14),
    0 8px 26px rgba(139, 0, 0, 0.14);
  transition:
    transform 460ms var(--card-ease),
    background 460ms var(--card-ease),
    border-color 460ms var(--card-ease),
    box-shadow 460ms var(--card-ease);
  transform-origin: center center;
}

/* diagonal warm sweep on hover */
.bt-card::before {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(115deg, transparent 32%, rgba(255, 110, 60, 0.30) 50%, transparent 68%);
  background-size: 220% 100%;
  background-position: -100% 0;
  opacity: 1;
  transition: background-position 1100ms var(--card-ease);
  pointer-events: none;
  z-index: 0;
}

/* GG FLARE: glowing flame gradient border (always on, brighter on hover) */
.bt-card::after {
  content: "";
  position: absolute;
  inset: 0;
  border-radius: inherit;
  padding: 1.6px;
  background: var(--card-flare);
  -webkit-mask: linear-gradient(#000 0 0) content-box, linear-gradient(#000 0 0);
  -webkit-mask-composite: xor;
          mask: linear-gradient(#000 0 0) content-box, linear-gradient(#000 0 0);
          mask-composite: exclude;
  opacity: 0.42;
  transition: opacity 460ms var(--card-ease);
  pointer-events: none;
  z-index: 2;
}
.bt-card > * { position: relative; z-index: 1; }

/* ----- Hover + active state ----- */
.bt-card:hover,
.bt-card.active {
  transform: perspective(1000px) translateY(-6px) rotateX(2.5deg);
  border-color: rgba(var(--card-warm), 0.85);
  background:
    linear-gradient(var(--card-deep), var(--card-deep)) top    12px left  12px / 32px 1px no-repeat,
    linear-gradient(var(--card-deep), var(--card-deep)) top    12px left  12px / 1px 32px no-repeat,
    linear-gradient(var(--card-deep), var(--card-deep)) top    12px right 12px / 32px 1px no-repeat,
    linear-gradient(var(--card-deep), var(--card-deep)) top    12px right 12px / 1px 32px no-repeat,
    linear-gradient(var(--card-deep), var(--card-deep)) bottom 12px left  12px / 32px 1px no-repeat,
    linear-gradient(var(--card-deep), var(--card-deep)) bottom 12px left  12px / 1px 32px no-repeat,
    linear-gradient(var(--card-deep), var(--card-deep)) bottom 12px right 12px / 32px 1px no-repeat,
    linear-gradient(var(--card-deep), var(--card-deep)) bottom 12px right 12px / 1px 32px no-repeat,
    radial-gradient(ellipse 80% 60% at 0% 0%, rgba(var(--card-warm), 0.30), transparent 70%),
    radial-gradient(600px circle at var(--mx) var(--my), rgba(255, 234, 214, 0.7), transparent 40%),
    linear-gradient(180deg, var(--card-hover-top) 0%, var(--card-hover-bottom) 100%);
  box-shadow:
    inset 0 1px 0 rgba(255, 255, 255, 0.75),
    0 0 0 1px rgba(var(--card-warm), 0.55),
    0 0 22px rgba(var(--card-warm), 0.34),
    0 0 54px rgba(var(--card-warm), 0.20),
    0 18px 48px rgba(139, 0, 0, 0.26);
}
.bt-card:hover::before,
.bt-card.active::before { background-position: 200% 0; }
.bt-card:hover::after,
.bt-card.active::after { opacity: 1; }

@media (prefers-reduced-motion: reduce) {
  .bt-card:hover, .bt-card.active { transform: translateY(-2px); }
}

/* ----- Icon ----- */
.bt-card-icon {
  width: 46px;
  height: 46px;
  border-radius: 11px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 14px;
  flex-shrink: 0;
  background: radial-gradient(circle at 35% 30%, rgba(var(--card-warm), 0.50) 0%, rgba(255, 248, 240, 0.92) 70%);
  border: 1px solid rgba(var(--card-warm), 0.60);
  color: var(--card-accent);
  transition: all 0.4s var(--card-ease);
  box-shadow:
    inset 0 0 0 1px rgba(255, 255, 255, 0.60),
    0 0 10px rgba(var(--card-warm), 0.28),
    0 0 22px rgba(var(--card-warm), 0.16),
    0 4px 10px rgba(139, 0, 0, 0.12);
}
.bt-card:hover .bt-card-icon,
.bt-card.active .bt-card-icon {
  background: radial-gradient(circle at 35% 30%, rgba(var(--card-warm), 0.85) 0%, rgba(255, 244, 236, 0.95) 70%);
  border-color: var(--card-deep);
  transform: rotate(-5deg) scale(1.05);
  box-shadow:
    inset 0 0 0 1px rgba(255, 255, 255, 0.70),
    0 0 18px rgba(var(--card-warm), 0.45),
    0 0 36px rgba(var(--card-warm), 0.22),
    0 6px 14px rgba(139, 0, 0, 0.22);
}
.bt-card-icon svg {
  width: 23px;
  height: 23px;
  stroke: currentColor;
  fill: none;
  stroke-width: 1.6;
  stroke-linecap: round;
  stroke-linejoin: round;
}

/* ----- Title (GG uses the display serif) ----- */
.bt-card-name {
  font-family: var(--font-display, inherit);
  font-weight: 600;
  font-size: 19px;
  letter-spacing: -0.01em;
  line-height: 1.22;
  color: var(--card-text);
  text-shadow: 0 1px 0 rgba(255, 255, 255, 0.40);
  transition: color 0.3s ease;
}
.bt-card:hover .bt-card-name,
.bt-card.active .bt-card-name { color: #0a0a0a; }

/* ----- Description (collapsed, expands on active) ----- */
.bt-card-desc {
  max-height: 0;
  overflow: hidden;
  opacity: 0;
  margin-top: 0;
  transition:
    max-height 0.5s cubic-bezier(0.25, 0.46, 0.45, 0.94),
    opacity 0.4s ease,
    margin-top 0.4s ease;
}
.bt-card.active .bt-card-desc {
  max-height: 400px;
  opacity: 1;
  margin-top: 12px;
}
.bt-card-desc p {
  font-family: var(--font-body, inherit);
  font-weight: 400;
  font-size: 14px;
  line-height: 1.65;
  color: var(--card-text-soft);
  margin: 0;
}
.bt-card-desc a {
  color: var(--card-accent);
  text-decoration: none;
  border-bottom: 1px solid rgba(var(--card-warm), 0.55);
  padding-bottom: 1px;
}
.bt-card-desc a:hover { color: #0a0a0a; border-bottom-color: #0a0a0a; }

/* ----- Metric chip (GG red pill) ----- */
.bt-card-metric {
  display: inline-block;
  margin-top: 10px;
  padding: 5px 12px;
  background: rgba(var(--card-warm), 0.16);
  border: 1px solid rgba(230, 58, 45, 0.50);
  border-radius: 999px;
  color: #8B0000;
  font-family: var(--font-mono, monospace);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.10em;
  text-transform: uppercase;
  box-shadow:
    inset 0 1px 0 rgba(255, 255, 255, 0.55),
    0 1px 3px rgba(139, 0, 0, 0.16);
  white-space: nowrap;
}

/* ----- Chevron ----- */
.bt-card-expand {
  margin-top: 20px;
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  align-self: center;
  transition: transform 0.3s ease, margin-top 0.4s ease;
}
.bt-card.active .bt-card-expand { transform: rotate(180deg); margin-top: 14px; }
.bt-card-expand svg {
  width: 26px;
  height: 26px;
  stroke: var(--card-accent);
  fill: none;
  stroke-width: 2;
  stroke-linecap: round;
  stroke-linejoin: round;
  filter:
    drop-shadow(0 0 3px rgba(230, 58, 45, 0.55))
    drop-shadow(0 0 6px rgba(255, 110, 60, 0.35));
}

/* ----- On dark sections: keep cream cards, they pop beautifully ----- */
[data-theme="dark"] .bt-card-grid { /* cream cards stand out on ink, no change needed */ }