/* ── Liquid Glass Effect (vanilla CSS port) ── */

/* Glass effect for cards and sections */
.liquid-glass {
  position: relative;
  backdrop-filter: blur(12px) saturate(1.4);
  -webkit-backdrop-filter: blur(12px) saturate(1.4);
  box-shadow:
    0 0 6px rgba(0,0,0,0.03),
    0 2px 6px rgba(0,0,0,0.08),
    inset 3px 3px 0.5px -3px rgba(255,255,255,0.9),
    inset -3px -3px 0.5px -3px rgba(255,255,255,0.85),
    inset 1px 1px 1px -0.5px rgba(255,255,255,0.6),
    inset -1px -1px 1px -0.5px rgba(255,255,255,0.6),
    inset 0 0 6px 6px rgba(255,255,255,0.12),
    inset 0 0 2px 2px rgba(255,255,255,0.06),
    0 0 12px rgba(0,0,0,0.15);
  transition: all 0.3s cubic-bezier(0.1, 0.4, 0.2, 1);
}

.liquid-glass:hover {
  box-shadow:
    0 0 8px rgba(0,0,0,0.04),
    0 4px 12px rgba(0,0,0,0.12),
    inset 3px 3px 0.5px -3.5px rgba(255,255,255,0.12),
    inset -3px -3px 0.5px -3.5px rgba(255,255,255,0.9),
    inset 1px 1px 1px -0.5px rgba(255,255,255,0.7),
    inset -1px -1px 1px -0.5px rgba(255,255,255,0.7),
    inset 0 0 8px 8px rgba(255,255,255,0.15),
    inset 0 0 3px 3px rgba(255,255,255,0.08),
    0 0 16px rgba(0,0,0,0.2);
  transform: translateY(-2px);
}

/* Liquid glass button */
.liquid-glass-btn {
  position: relative;
  overflow: hidden;
  backdrop-filter: blur(8px) saturate(1.3);
  -webkit-backdrop-filter: blur(8px) saturate(1.3);
  box-shadow:
    0 0 6px rgba(0,0,0,0.03),
    0 2px 6px rgba(0,0,0,0.08),
    inset 3px 3px 0.5px -3.5px rgba(255,255,255,0.09),
    inset -3px -3px 0.5px -3.5px rgba(255,255,255,0.85),
    inset 1px 1px 1px -0.5px rgba(255,255,255,0.6),
    inset -1px -1px 1px -0.5px rgba(255,255,255,0.6),
    inset 0 0 6px 6px rgba(255,255,255,0.12),
    inset 0 0 2px 2px rgba(255,255,255,0.06),
    0 0 12px rgba(255,255,255,0.15);
  transition: all 0.3s cubic-bezier(0.1, 0.4, 0.2, 1);
}

.liquid-glass-btn:hover {
  transform: scale(1.05) translateY(-1px);
  box-shadow:
    0 0 10px rgba(0,0,0,0.04),
    0 6px 16px rgba(0,0,0,0.12),
    inset 3px 3px 0.5px -3.5px rgba(255,255,255,0.15),
    inset -3px -3px 0.5px -3.5px rgba(255,255,255,0.9),
    inset 1px 1px 1px -0.5px rgba(255,255,255,0.7),
    inset -1px -1px 1px -0.5px rgba(255,255,255,0.7),
    inset 0 0 8px 8px rgba(255,255,255,0.18),
    inset 0 0 3px 3px rgba(255,255,255,0.1),
    0 0 20px rgba(255,255,255,0.2);
}

.liquid-glass-btn:active {
  transform: scale(0.97);
}

/* Metal button effect */
.metal-btn {
  position: relative;
  background: linear-gradient(to bottom, #B9B9B9, #969696);
  color: #fff;
  text-shadow: 0 -1px 0 rgba(80,80,80,1);
  border: none;
  overflow: hidden;
  transition: all 250ms cubic-bezier(0.1, 0.4, 0.2, 1);
}

.metal-btn::before {
  content: '';
  position: absolute;
  inset: 0;
  border-radius: inherit;
  padding: 1.25px;
  background: linear-gradient(to bottom, #000, #A0A0A0);
  -webkit-mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
  mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
  -webkit-mask-composite: xor;
  mask-composite: exclude;
  pointer-events: none;
}

.metal-btn::after {
  content: '';
  position: absolute;
  inset: 1px;
  border-radius: inherit;
  background: linear-gradient(to bottom, #FAFAFA, #3E3E3E 50%, #E5E5E5);
  opacity: 0;
  transition: opacity 0.3s;
  pointer-events: none;
}

.metal-btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(0,0,0,0.12);
  filter: brightness(1.05);
}

.metal-btn:active {
  transform: translateY(2.5px) scale(0.99);
  box-shadow: 0 1px 2px rgba(0,0,0,0.15);
  filter: brightness(0.95);
}

/* Section-level glass */
.glass-section {
  position: relative;
  box-shadow:
    inset 0 1px 0 rgba(255,255,255,0.06),
    inset 0 -1px 0 rgba(255,255,255,0.03),
    0 0 40px rgba(0,0,0,0.1);
}

/* Pricing card liquid glass */
.pricing-card.liquid-glass {
  box-shadow:
    0 0 8px rgba(0,0,0,0.03),
    0 2px 6px rgba(0,0,0,0.08),
    inset 3px 3px 0.5px -3.5px rgba(255,255,255,0.09),
    inset -3px -3px 0.5px -3.5px rgba(255,255,255,0.85),
    inset 1px 1px 1px -0.5px rgba(255,255,255,0.6),
    inset -1px -1px 1px -0.5px rgba(255,255,255,0.6),
    inset 0 0 6px 6px rgba(255,255,255,0.12),
    inset 0 0 2px 2px rgba(255,255,255,0.06),
    0 0 12px rgba(0,0,0,0.15);
  transition: all 0.4s cubic-bezier(0.1, 0.4, 0.2, 1), transform 0.25s;
}
.pricing-card.liquid-glass:hover {
  box-shadow:
    0 0 10px rgba(0,0,0,0.04),
    0 8px 32px rgba(0,0,0,0.2),
    inset 3px 3px 0.5px -3.5px rgba(255,255,255,0.15),
    inset -3px -3px 0.5px -3.5px rgba(255,255,255,0.9),
    inset 1px 1px 1px -0.5px rgba(255,255,255,0.7),
    inset -1px -1px 1px -0.5px rgba(255,255,255,0.7),
    inset 0 0 8px 8px rgba(255,255,255,0.18),
    inset 0 0 3px 3px rgba(255,255,255,0.1),
    0 0 24px rgba(255,255,255,0.2);
  transform: translateY(-4px);
}
.pricing-card.liquid-glass:active {
  transform: translateY(2px) scale(0.99);
  box-shadow:
    0 1px 2px rgba(0,0,0,0.15),
    inset 3px 3px 0.5px -3.5px rgba(255,255,255,0.05),
    inset -3px -3px 0.5px -3.5px rgba(255,255,255,0.7),
    inset 0 0 4px 4px rgba(255,255,255,0.08);
}

/* ── Liquid Glass Button ── */
.liquid-btn {
  position: relative;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 10px 24px;
  border-radius: 999px;
  font-size: 14px;
  font-weight: 600;
  color: #fafafa;
  background: transparent;
  border: none;
  cursor: pointer;
  transition: transform 0.3s cubic-bezier(0.2, 0.8, 0.2, 1), filter 0.3s;
  white-space: nowrap;
}
.liquid-btn:hover {
  transform: scale(1.05);
  filter: brightness(1.1);
  color: #fafafa;
}
.liquid-btn:active {
  transform: scale(0.97);
  filter: brightness(0.9);
}
.liquid-btn .glass-layer {
  position: absolute;
  top: 0; left: 0;
  width: 100%; height: 100%;
  border-radius: inherit;
  z-index: 0;
  pointer-events: none;
  box-shadow:
    0 0 8px rgba(0,0,0,0.03),
    0 2px 6px rgba(0,0,0,0.08),
    inset 3px 3px 0.5px -3.5px rgba(255,255,255,0.09),
    inset -3px -3px 0.5px -3.5px rgba(255,255,255,0.85),
    inset 1px 1px 1px -0.5px rgba(255,255,255,0.6),
    inset -1px -1px 1px -0.5px rgba(255,255,255,0.6),
    inset 0 0 6px 6px rgba(255,255,255,0.12),
    inset 0 0 2px 2px rgba(255,255,255,0.06),
    0 0 12px rgba(0,0,0,0.15);
}
.liquid-btn .blur-layer {
  position: absolute;
  top: 0; left: 0;
  width: 100%; height: 100%;
  border-radius: inherit;
  z-index: -1;
  overflow: hidden;
}
.liquid-btn .btn-text {
  position: relative;
  z-index: 1;
  pointer-events: none;
  display: inline-flex;
  align-items: center;
  gap: 8px;
}
.liquid-btn.primary .glass-layer {
  box-shadow:
    0 0 8px rgba(0,0,0,0.05),
    0 2px 8px rgba(0,0,0,0.12),
    inset 3px 3px 0.5px -3.5px rgba(255,255,255,0.15),
    inset -3px -3px 0.5px -3.5px rgba(255,255,255,0.9),
    inset 1px 1px 1px -0.5px rgba(255,255,255,0.7),
    inset -1px -1px 1px -0.5px rgba(255,255,255,0.7),
    inset 0 0 8px 8px rgba(255,255,255,0.18),
    inset 0 0 3px 3px rgba(255,255,255,0.1),
    0 0 16px rgba(255,255,255,0.08);
}