/* Reusable 3D keycap CTA — E-Logyc sage/teal glow */

.keycap-btn {
  --keycap-rx: 16deg;
  --keycap-rz: -24deg;
  --keycap-lift: 0px;
  position: relative;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.35rem 0.75rem 1.65rem;
  margin: 0;
  border: none;
  background: transparent;
  text-decoration: none;
  cursor: pointer;
  perspective: 900px;
  -webkit-tap-highlight-color: transparent;
  vertical-align: middle;
}

.keycap-btn__halo {
  position: absolute;
  left: 50%;
  bottom: 0.35rem;
  width: min(120%, 22rem);
  height: 3.25rem;
  transform: translateX(-50%);
  pointer-events: none;
  background: radial-gradient(
    ellipse at 50% 60%,
    rgba(215, 229, 229, 0.28) 0%,
    rgba(182, 196, 190, 0.22) 28%,
    rgba(26, 45, 41, 0.35) 52%,
    transparent 72%
  );
  filter: blur(14px);
  opacity: 0.85;
  transition: opacity 0.25s ease, filter 0.25s ease;
}

.keycap-btn__cap {
  position: relative;
  z-index: 1;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 11rem;
  padding: 0.9rem 1.85rem;
  border-radius: 0.7rem;
  background: linear-gradient(168deg, #1a2d29 0%, #131313 48%, #0d0f0f 100%);
  border: 1px solid rgba(182, 196, 190, 0.28);
  transform: rotateX(var(--keycap-rx)) rotateZ(var(--keycap-rz)) translateY(var(--keycap-lift));
  transform-style: preserve-3d;
  transition:
    transform 0.22s ease,
    box-shadow 0.22s ease,
    border-color 0.22s ease;
  box-shadow:
    0 0.28rem 0 0 #152220,
    0 0.42rem 0 0 rgba(37, 50, 50, 0.95),
    0 0.55rem 0.05rem rgba(95, 140, 130, 0.5),
    0 0.75rem 0.35rem rgba(182, 196, 190, 0.22),
    0 1.1rem 1.75rem rgba(26, 45, 41, 0.65),
    0 0 28px rgba(182, 196, 190, 0.12),
    inset 0 1px 0 rgba(215, 229, 229, 0.14),
    inset 0 -1px 0 rgba(0, 0, 0, 0.45);
}

.keycap-btn__cap::after {
  content: "";
  position: absolute;
  left: 0.35rem;
  right: 0.35rem;
  bottom: -0.42rem;
  height: 0.48rem;
  border-radius: 0 0 0.55rem 0.55rem;
  background: linear-gradient(
    90deg,
    rgba(37, 50, 50, 0.95) 0%,
    rgba(95, 140, 130, 0.9) 35%,
    rgba(182, 196, 190, 0.95) 55%,
    rgba(215, 229, 229, 0.85) 75%,
    rgba(95, 140, 130, 0.85) 100%
  );
  box-shadow:
    0 0 10px rgba(182, 196, 190, 0.55),
    0 0 22px rgba(215, 229, 229, 0.25);
  transform: translateZ(-2px);
  pointer-events: none;
}

.keycap-btn__label {
  position: relative;
  z-index: 1;
  font-family: var(--font-sans);
  font-size: 0.8125rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  color: var(--color-on-surface);
  text-shadow:
    0 0 6px rgba(255, 255, 255, 0.45),
    0 0 14px rgba(215, 229, 229, 0.65),
    0 0 26px rgba(182, 196, 190, 0.4);
  white-space: nowrap;
}

.keycap-btn:hover .keycap-btn__cap {
  --keycap-lift: -5px;
  border-color: rgba(215, 229, 229, 0.42);
  box-shadow:
    0 0.35rem 0 0 #152220,
    0 0.5rem 0 0 rgba(37, 50, 50, 0.95),
    0 0.65rem 0.08rem rgba(95, 140, 130, 0.65),
    0 0.95rem 0.45rem rgba(182, 196, 190, 0.35),
    0 1.35rem 2.25rem rgba(26, 45, 41, 0.75),
    0 0 42px rgba(182, 196, 190, 0.28),
    inset 0 1px 0 rgba(215, 229, 229, 0.2),
    inset 0 -1px 0 rgba(0, 0, 0, 0.45);
}

.keycap-btn:hover .keycap-btn__halo {
  opacity: 1;
  filter: blur(16px);
}

.keycap-btn:active .keycap-btn__cap {
  --keycap-lift: 4px;
  transition-duration: 0.08s;
  box-shadow:
    0 0.12rem 0 0 #152220,
    0 0.18rem 0 0 rgba(37, 50, 50, 0.9),
    0 0.22rem 0 rgba(95, 140, 130, 0.35),
    0 0.35rem 0.6rem rgba(26, 45, 41, 0.45),
    0 0 18px rgba(182, 196, 190, 0.15),
    inset 0 2px 6px rgba(0, 0, 0, 0.55);
}

.keycap-btn:focus {
  outline: none;
}

.keycap-btn:focus-visible {
  outline: 2px solid var(--color-sage);
  outline-offset: 6px;
  border-radius: var(--radius-md);
}

@media (prefers-reduced-motion: reduce) {
  .keycap-btn {
    --keycap-rx: 0deg;
    --keycap-rz: 0deg;
    perspective: none;
  }

  .keycap-btn__cap {
    transform: translateY(var(--keycap-lift));
  }

  .keycap-btn:hover .keycap-btn__cap,
  .keycap-btn:active .keycap-btn__cap {
    transform: translateY(var(--keycap-lift));
  }
}

@media (pointer: coarse) {
  .keycap-btn {
    --keycap-rx: 10deg;
    --keycap-rz: -14deg;
  }
}