/* === Apple Liquid Glass Effect === */
:root {
  --glass-bg: rgba(255, 255, 255, 0.08);
  --glass-bg-hover: rgba(255, 255, 255, 0.12);
  --glass-border: rgba(255, 255, 255, 0.18);
  --glass-border-hover: rgba(255, 255, 255, 0.3);
  --glass-blur: 20px;
  --glass-saturate: 180%;
  --glass-shadow: 0 8px 32px rgba(0, 0, 0, 0.12);
  --glass-shadow-hover: 0 20px 60px rgba(0, 0, 0, 0.2);
  --glass-transition: all 0.5s cubic-bezier(0.34, 1.56, 0.64, 1);
  --glass-radius: 16px;
  --glass-opacity: 1;
  --glass-displacement: 8;
  --glass-aberration: 2;
  --glass-elasticity: 0.15;
}

/* Base liquid glass class */
.liquid-glass {
  background: var(--glass-bg);
  backdrop-filter: blur(var(--glass-blur)) saturate(var(--glass-saturate));
  -webkit-backdrop-filter: blur(var(--glass-blur)) saturate(var(--glass-saturate));
  border: 1px solid var(--glass-border);
  border-radius: var(--glass-radius);
  box-shadow: var(--glass-shadow), inset 0 1px 0 rgba(255, 255, 255, 0.2);
  transition: var(--glass-transition);
  position: relative;
  overflow: hidden;
  opacity: var(--glass-opacity);
}

.liquid-glass::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 50%;
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.15) 0%, transparent 100%);
  border-radius: var(--glass-radius) var(--glass-radius) 0 0;
  pointer-events: none;
}

.liquid-glass::after {
  content: '';
  position: absolute;
  inset: 0;
  border-radius: var(--glass-radius);
  background: radial-gradient(circle at var(--mouse-x, 50%) var(--mouse-y, 50%), rgba(255, 255, 255, 0.1) 0%, transparent 50%);
  opacity: 0;
  transition: opacity 0.3s;
  pointer-events: none;
}

.liquid-glass:hover {
  background: var(--glass-bg-hover);
  border-color: var(--glass-border-hover);
  box-shadow: var(--glass-shadow-hover), inset 0 1px 0 rgba(255, 255, 255, 0.3);
}

.liquid-glass:hover::after {
  opacity: 1;
}

/* Button variants */
.liquid-glass-btn {
  background: var(--glass-bg);
  backdrop-filter: blur(var(--glass-blur)) saturate(var(--glass-saturate));
  -webkit-backdrop-filter: blur(var(--glass-blur)) saturate(var(--glass-saturate));
  border: 1px solid var(--glass-border);
  border-radius: 12px;
  padding: 10px 20px;
  color: #fff;
  cursor: pointer;
  font-size: 0.9rem;
  font-weight: 500;
  transition: var(--glass-transition);
  position: relative;
  overflow: hidden;
  box-shadow: var(--glass-shadow), inset 0 1px 0 rgba(255, 255, 255, 0.2);
}

.liquid-glass-btn::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 50%;
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.15) 0%, transparent 100%);
  border-radius: 12px 12px 0 0;
  pointer-events: none;
}

.liquid-glass-btn::after {
  content: '';
  position: absolute;
  inset: 0;
  border-radius: 12px;
  background: radial-gradient(circle at var(--mouse-x, 50%) var(--mouse-y, 50%), rgba(255, 255, 255, 0.15) 0%, transparent 50%);
  opacity: 0;
  transition: opacity 0.3s;
  pointer-events: none;
}

.liquid-glass-btn:hover {
  background: var(--glass-bg-hover);
  border-color: var(--glass-border-hover);
  transform: translateY(-2px) scale(1.02);
  box-shadow: var(--glass-shadow-hover), inset 0 1px 0 rgba(255, 255, 255, 0.3);
}

.liquid-glass-btn:hover::after {
  opacity: 1;
}

.liquid-glass-btn:active {
  transform: translateY(0) scale(0.98);
}

/* Input fields */
.liquid-glass-input {
  background: rgba(255, 255, 255, 0.05);
  backdrop-filter: blur(15px) saturate(150%);
  -webkit-backdrop-filter: blur(15px) saturate(150%);
  border: 1px solid rgba(255, 255, 255, 0.15);
  border-radius: 12px;
  padding: 12px 16px;
  color: #fff;
  font-size: 0.9rem;
  transition: var(--glass-transition);
  outline: none;
  width: 100%;
}

.liquid-glass-input:focus {
  background: rgba(255, 255, 255, 0.08);
  border-color: rgba(255, 255, 255, 0.3);
  box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.1), inset 0 1px 0 rgba(255, 255, 255, 0.2);
}

/* Sidebar items */
.liquid-glass-sidebar-item {
  background: rgba(255, 255, 255, 0.05);
  backdrop-filter: blur(15px) saturate(150%);
  -webkit-backdrop-filter: blur(15px) saturate(150%);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 10px;
  padding: 10px 14px;
  transition: var(--glass-transition);
  cursor: pointer;
}

.liquid-glass-sidebar-item:hover {
  background: rgba(255, 255, 255, 0.1);
  border-color: rgba(255, 255, 255, 0.2);
}

.liquid-glass-sidebar-item.active {
  background: rgba(59, 130, 246, 0.15);
  border-color: rgba(59, 130, 246, 0.3);
}

/* Icon buttons */
.liquid-glass-icon-btn {
  background: var(--glass-bg);
  backdrop-filter: blur(var(--glass-blur)) saturate(var(--glass-saturate));
  -webkit-backdrop-filter: blur(var(--glass-blur)) saturate(var(--glass-saturate));
  border: 1px solid var(--glass-border);
  border-radius: 10px;
  padding: 8px 12px;
  color: #8fb0ff;
  cursor: pointer;
  font-size: 0.85rem;
  transition: var(--glass-transition);
  position: relative;
  overflow: hidden;
}

.liquid-glass-icon-btn:hover {
  background: var(--glass-bg-hover);
  border-color: var(--glass-border-hover);
  transform: scale(1.05);
}

/* Toggle/Switch */
.liquid-glass-toggle {
  background: rgba(255, 255, 255, 0.05);
  backdrop-filter: blur(15px) saturate(150%);
  -webkit-backdrop-filter: blur(15px) saturate(150%);
  border: 1px solid rgba(255, 255, 255, 0.15);
  border-radius: 20px;
  width: 50px;
  height: 28px;
  position: relative;
  cursor: pointer;
  transition: var(--glass-transition);
}

.liquid-glass-toggle::before {
  content: '';
  position: absolute;
  top: 3px;
  left: 3px;
  width: 20px;
  height: 20px;
  background: rgba(255, 255, 255, 0.9);
  border-radius: 50%;
  transition: var(--glass-transition);
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.2);
}

.liquid-glass-toggle.active {
  background: rgba(59, 130, 246, 0.3);
  border-color: rgba(59, 130, 246, 0.5);
}

.liquid-glass-toggle.active::before {
  transform: translateX(22px);
  background: #3b82f6;
}

/* Slider - Enhanced einui-style */
.liquid-glass-slider {
  -webkit-appearance: none;
  appearance: none;
  width: 100%;
  height: 8px;
  background: linear-gradient(90deg, rgba(255, 255, 255, 0.08) 0%, rgba(255, 255, 255, 0.15) 100%);
  backdrop-filter: blur(12px) saturate(160%);
  -webkit-backdrop-filter: blur(12px) saturate(160%);
  border-radius: 10px;
  outline: none;
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  border: 1px solid rgba(255, 255, 255, 0.1);
  box-shadow: inset 0 1px 3px rgba(0, 0, 0, 0.1), 0 1px 2px rgba(255, 255, 255, 0.05);
}

.liquid-glass-slider:hover {
  background: linear-gradient(90deg, rgba(255, 255, 255, 0.12) 0%, rgba(255, 255, 255, 0.2) 100%);
  border-color: rgba(255, 255, 255, 0.18);
}

.liquid-glass-slider::-webkit-slider-thumb {
  -webkit-appearance: none;
  appearance: none;
  width: 22px;
  height: 22px;
  background: linear-gradient(135deg, rgba(255, 255, 255, 0.95) 0%, rgba(255, 255, 255, 0.85) 100%);
  backdrop-filter: blur(10px) saturate(180%);
  -webkit-backdrop-filter: blur(10px) saturate(180%);
  border: 2px solid rgba(255, 255, 255, 0.4);
  border-radius: 50%;
  cursor: pointer;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.25), 0 2px 4px rgba(255, 255, 255, 0.2), inset 0 1px 2px rgba(255, 255, 255, 0.5);
  transition: all 0.3s cubic-bezier(0.34, 1.56, 0.64, 1);
}

.liquid-glass-slider::-webkit-slider-thumb:hover {
  transform: scale(1.15);
  background: linear-gradient(135deg, rgba(255, 255, 255, 1) 0%, rgba(255, 255, 255, 0.95) 100%);
  box-shadow: 0 6px 16px rgba(0, 0, 0, 0.3), 0 3px 6px rgba(255, 255, 255, 0.3), inset 0 1px 3px rgba(255, 255, 255, 0.6);
}

.liquid-glass-slider::-webkit-slider-thumb:active {
  transform: scale(1.05);
}

.liquid-glass-slider::-moz-range-thumb {
  width: 22px;
  height: 22px;
  background: linear-gradient(135deg, rgba(255, 255, 255, 0.95) 0%, rgba(255, 255, 255, 0.85) 100%);
  backdrop-filter: blur(10px) saturate(180%);
  -webkit-backdrop-filter: blur(10px) saturate(180%);
  border: 2px solid rgba(255, 255, 255, 0.4);
  border-radius: 50%;
  cursor: pointer;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.25), 0 2px 4px rgba(255, 255, 255, 0.2), inset 0 1px 2px rgba(255, 255, 255, 0.5);
  transition: all 0.3s cubic-bezier(0.34, 1.56, 0.64, 1);
}

.liquid-glass-slider::-moz-range-thumb:hover {
  transform: scale(1.15);
  background: linear-gradient(135deg, rgba(255, 255, 255, 1) 0%, rgba(255, 255, 255, 0.95) 100%);
  box-shadow: 0 6px 16px rgba(0, 0, 0, 0.3), 0 3px 6px rgba(255, 255, 255, 0.3), inset 0 1px 3px rgba(255, 255, 255, 0.6);
}

/* Dropdown/Select */
.liquid-glass-select {
  background: rgba(255, 255, 255, 0.05);
  backdrop-filter: blur(15px) saturate(150%);
  -webkit-backdrop-filter: blur(15px) saturate(150%);
  border: 1px solid rgba(255, 255, 255, 0.15);
  border-radius: 12px;
  padding: 10px 16px;
  color: #fff;
  font-size: 0.9rem;
  cursor: pointer;
  transition: var(--glass-transition);
  outline: none;
  width: 100%;
}

.liquid-glass-select:hover {
  background: rgba(255, 255, 255, 0.08);
  border-color: rgba(255, 255, 255, 0.25);
}

.liquid-glass-select:focus {
  background: rgba(255, 255, 255, 0.08);
  border-color: rgba(255, 255, 255, 0.3);
}

/* Textarea */
.liquid-glass-textarea {
  background: rgba(255, 255, 255, 0.05);
  backdrop-filter: blur(15px) saturate(150%);
  -webkit-backdrop-filter: blur(15px) saturate(150%);
  border: 1px solid rgba(255, 255, 255, 0.15);
  border-radius: 12px;
  padding: 12px 16px;
  color: #fff;
  font-size: 0.9rem;
  transition: var(--glass-transition);
  outline: none;
  width: 100%;
  resize: vertical;
  min-height: 100px;
}

.liquid-glass-textarea:focus {
  background: rgba(255, 255, 255, 0.08);
  border-color: rgba(255, 255, 255, 0.3);
  box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.1), inset 0 1px 0 rgba(255, 255, 255, 0.2);
}

/* Mouse tracking JavaScript */
function initLiquidGlassMouseTracking() {
  document.querySelectorAll('.liquid-glass, .liquid-glass-btn, .liquid-glass-icon-btn').forEach(el => {
    el.addEventListener('mousemove', e => {
      const rect = el.getBoundingClientRect();
      const x = ((e.clientX - rect.left) / rect.width) * 100;
      const y = ((e.clientY - rect.top) / rect.height) * 100;
      el.style.setProperty('--mouse-x', x + '%');
      el.style.setProperty('--mouse-y', y + '%');
    });
  });
}

// Auto-initialize on page load
if (document.readyState === 'loading') {
  document.addEventListener('DOMContentLoaded', initLiquidGlassMouseTracking);
} else {
  initLiquidGlassMouseTracking();
}