/*
 * LetsTalk Glass - CSS Styles
 * Based on liquidGL + liquid-glass-js merge
 */

/* --------------------------------------------------
 * CSS Variables
 * ------------------------------------------------*/
:root {
  --glass-text-color: #ffffff;
  --glass-text-shadow: 0 1px 2px rgba(0, 0, 0, 0.5);
  --glass-border-color: rgba(255, 255, 255, 0.2);
  --glass-shadow: 0 10px 30px rgba(0, 0, 0, 0.1), 0 0 0 0.5px rgba(0, 0, 0, 0.05);
  --glass-fallback-bg: rgba(255, 255, 255, 0.1);
  --glass-fallback-blur: blur(12px);
}

/* --------------------------------------------------
 * Base Glass Panel
 * ------------------------------------------------*/
.glass-panel,
.glass-enabled {
  position: relative;
  z-index: 10;
  overflow: hidden;
}

/* Content inside glass panels */
.glass-panel > *,
.glass-enabled > * {
  position: relative;
  z-index: 3;
}

/* Text styling with auto-contrast */
.glass-panel .content,
.glass-enabled .content,
.glass-panel .glass-content,
.glass-enabled .glass-content {
  color: var(--glass-text-color);
  text-shadow: var(--glass-text-shadow);
}

/* --------------------------------------------------
 * Glass Mode Active
 * ------------------------------------------------*/
body.glass-mode .glass-panel,
body.glass-mode .glass-enabled {
  background: transparent !important;
  backdrop-filter: none !important;
  -webkit-backdrop-filter: none !important;
}

/* --------------------------------------------------
 * Glass Mode Disabled (normal appearance)
 * ------------------------------------------------*/
body:not(.glass-mode) .glass-panel,
body:not(.glass-mode) .glass-enabled {
  background: rgba(255, 255, 255, 0.9);
  box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
}

/* Dark mode variant */
body.dark-theme:not(.glass-mode) .glass-panel,
body.dark-theme:not(.glass-mode) .glass-enabled {
  background: rgba(30, 30, 30, 0.9);
  color: #ffffff;
}

/* --------------------------------------------------
 * CSS Fallback (no WebGL)
 * ------------------------------------------------*/
.glass-fallback,
.glass-fallback .glass-panel,
.glass-fallback .glass-enabled {
  background: var(--glass-fallback-bg) !important;
  backdrop-filter: var(--glass-fallback-blur) !important;
  -webkit-backdrop-filter: var(--glass-fallback-blur) !important;
  border: 1px solid var(--glass-border-color);
}

/* --------------------------------------------------
 * Shape Types
 * ------------------------------------------------*/
.glass-circle {
  border-radius: 50% !important;
  aspect-ratio: 1 / 1;
}

.glass-pill {
  border-radius: 9999px !important;
}

.glass-rounded {
  border-radius: 24px;
}

/* --------------------------------------------------
 * Glass Containers (from liquid-glass-js)
 * ------------------------------------------------*/
.glass-container {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 20px;
  padding: 10px;
  box-sizing: border-box;
}

.glass-container-circle {
  aspect-ratio: 1 / 1;
  flex-shrink: 0;
  flex-grow: 0;
}

.glass-container-pill {
  flex-shrink: 0;
  flex-grow: 0;
}

/* --------------------------------------------------
 * Glass Buttons
 * ------------------------------------------------*/
.glass-button {
  position: relative;
  box-shadow: var(--glass-shadow);
  cursor: pointer;
  pointer-events: auto;
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  box-sizing: border-box;
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.glass-button:hover {
  transform: translateY(-2px);
  box-shadow: 0 15px 40px rgba(0, 0, 0, 0.15);
}

.glass-button:active {
  transform: translateY(0);
}

.glass-button-circle {
  aspect-ratio: 1 / 1;
  flex-shrink: 0;
  flex-grow: 0;
}

.glass-button-text {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  z-index: 1;
  pointer-events: none;
  font-weight: 500;
  color: var(--glass-text-color);
  text-shadow: var(--glass-text-shadow);
  font-family: system-ui, -apple-system, sans-serif;
  white-space: nowrap;
}

/* --------------------------------------------------
 * Glass Cards
 * ------------------------------------------------*/
.glass-card {
  position: relative;
  border-radius: 16px;
  padding: 24px;
  z-index: 10;
}

.glass-card-header {
  font-size: 1.25rem;
  font-weight: 600;
  margin-bottom: 12px;
  color: var(--glass-text-color);
  text-shadow: var(--glass-text-shadow);
}

.glass-card-body {
  color: var(--glass-text-color);
  text-shadow: var(--glass-text-shadow);
  opacity: 0.9;
}

/* --------------------------------------------------
 * Glass Navigation
 * ------------------------------------------------*/
.glass-nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  padding: 16px 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.glass-nav-item {
  color: var(--glass-text-color);
  text-shadow: var(--glass-text-shadow);
  text-decoration: none;
  padding: 8px 16px;
  border-radius: 8px;
  transition: background 0.2s ease;
}

.glass-nav-item:hover {
  background: rgba(255, 255, 255, 0.1);
}

/* --------------------------------------------------
 * Glass Modal
 * ------------------------------------------------*/
.glass-modal-backdrop {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(0, 0, 0, 0.5);
  z-index: 999;
  display: flex;
  align-items: center;
  justify-content: center;
}

.glass-modal {
  position: relative;
  border-radius: 24px;
  padding: 32px;
  max-width: 90vw;
  max-height: 90vh;
  z-index: 1000;
  overflow: auto;
}

.glass-modal-header {
  font-size: 1.5rem;
  font-weight: 600;
  margin-bottom: 16px;
  color: var(--glass-text-color);
  text-shadow: var(--glass-text-shadow);
}

.glass-modal-close {
  position: absolute;
  top: 16px;
  right: 16px;
  width: 32px;
  height: 32px;
  border-radius: 50%;
  border: none;
  background: rgba(255, 255, 255, 0.1);
  color: var(--glass-text-color);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.25rem;
  transition: background 0.2s ease;
}

.glass-modal-close:hover {
  background: rgba(255, 255, 255, 0.2);
}

/* --------------------------------------------------
 * Glass Toast
 * ------------------------------------------------*/
.glass-toast {
  position: fixed;
  bottom: 24px;
  right: 24px;
  border-radius: 12px;
  padding: 16px 24px;
  z-index: 1001;
  color: var(--glass-text-color);
  text-shadow: var(--glass-text-shadow);
  animation: glass-toast-in 0.3s ease;
}

@keyframes glass-toast-in {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* --------------------------------------------------
 * Glass Toggle Switch
 * ------------------------------------------------*/
.glass-toggle {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  cursor: pointer;
}

.glass-toggle-label {
  color: var(--glass-text-color);
  text-shadow: var(--glass-text-shadow);
}

.glass-toggle-track {
  width: 48px;
  height: 24px;
  border-radius: 12px;
  background: rgba(255, 255, 255, 0.2);
  position: relative;
  transition: background 0.2s ease;
}

.glass-toggle-track.active {
  background: rgba(100, 200, 255, 0.5);
}

.glass-toggle-thumb {
  width: 20px;
  height: 20px;
  border-radius: 50%;
  background: white;
  position: absolute;
  top: 2px;
  left: 2px;
  transition: transform 0.2s ease;
  box-shadow: 0 2px 4px rgba(0, 0, 0, 0.2);
}

.glass-toggle-track.active .glass-toggle-thumb {
  transform: translateX(24px);
}

/* --------------------------------------------------
 * Animations
 * ------------------------------------------------*/
.glass-fade-in {
  animation: glass-fade 0.5s ease forwards;
}

@keyframes glass-fade {
  from {
    opacity: 0;
  }
  to {
    opacity: 1;
  }
}

.glass-slide-up {
  animation: glass-slide-up 0.5s ease forwards;
}

@keyframes glass-slide-up {
  from {
    opacity: 0;
    transform: translateY(30px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* --------------------------------------------------
 * Responsive
 * ------------------------------------------------*/
@media (max-width: 768px) {
  .glass-panel,
  .glass-enabled {
    border-radius: 16px;
  }

  .glass-card {
    padding: 16px;
  }

  .glass-modal {
    padding: 24px;
    border-radius: 16px;
  }

  .glass-nav {
    padding: 12px 16px;
  }
}

/* --------------------------------------------------
 * Print Styles
 * ------------------------------------------------*/
@media print {
  .glass-panel,
  .glass-enabled,
  .glass-fallback {
    background: white !important;
    backdrop-filter: none !important;
    box-shadow: none !important;
    border: 1px solid #ddd;
  }

  .glass-panel .content,
  .glass-enabled .content {
    color: black !important;
    text-shadow: none !important;
  }
}

/* --------------------------------------------------
 * Reduced Motion
 * ------------------------------------------------*/
@media (prefers-reduced-motion: reduce) {
  .glass-button,
  .glass-toggle-track,
  .glass-toggle-thumb {
    transition: none;
  }

  .glass-fade-in,
  .glass-slide-up,
  .glass-toast {
    animation: none;
  }
}