/* ================================================================
   Synapse Progressive Disclosure Styles
   ================================================================
   Mobile-first, calm, guided network visualization
   ================================================================ */

/* ==========================================================================
   MODE SWITCHER
   ========================================================================== */

.synapse-mode-switcher {
  position: fixed;
  top: 80px;
  right: 20px;
  z-index: 1000;
  display: flex;
  flex-direction: column;
  gap: 8px;
  background: rgba(20, 20, 30, 0.95);
  backdrop-filter: blur(10px);
  border-radius: 12px;
  padding: 12px;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.3);
  transition: all 0.3s ease;
}

/* Mobile: Bottom navigation */
@media (max-width: 767px) {
  .synapse-mode-switcher {
    top: auto;
    bottom: 20px;
    right: 50%;
    transform: translateX(50%);
    flex-direction: row;
    width: calc(100% - 40px);
    max-width: 400px;
    padding: 8px;
  }
}

.mode-button {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  padding: 12px 16px;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 8px;
  color: rgba(255, 255, 255, 0.7);
  cursor: pointer;
  transition: all 0.2s ease;
  min-width: 140px;
  text-align: left;
}

@media (max-width: 767px) {
  .mode-button {
    flex: 1;
    min-width: 0;
    padding: 10px 12px;
    align-items: center;
    text-align: center;
  }
}

.mode-button:hover {
  background: rgba(255, 255, 255, 0.1);
  border-color: rgba(100, 200, 255, 0.3);
  color: rgba(255, 255, 255, 0.9);
  transform: translateY(-2px);
}

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

.mode-button.active {
  background: rgba(100, 200, 255, 0.15);
  border-color: rgba(100, 200, 255, 0.5);
  color: #fff;
  box-shadow: 0 0 12px rgba(100, 200, 255, 0.3);
}

.mode-name {
  font-size: 14px;
  font-weight: 600;
  margin-bottom: 2px;
  display: block;
}

@media (max-width: 767px) {
  .mode-name {
    font-size: 12px;
    margin-bottom: 0;
  }
}

.mode-description {
  font-size: 11px;
  opacity: 0.7;
  display: block;
}

@media (max-width: 767px) {
  .mode-description {
    display: none;
  }
}

/* ==========================================================================
   FIRST-TIME EXPERIENCE
   ========================================================================== */

.synapse-first-time-helper {
  position: fixed;
  z-index: 10000;
  opacity: 0;
  transition: opacity 0.3s ease;
  pointer-events: none;
}

.synapse-first-time-helper.visible {
  opacity: 1;
  pointer-events: all;
}

.helper-content {
  background: linear-gradient(135deg, rgba(100, 200, 255, 0.95), rgba(80, 150, 255, 0.95));
  color: #fff;
  padding: 20px 24px;
  border-radius: 16px;
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.4);
  text-align: center;
  max-width: 300px;
  animation: helperPulse 2s ease-in-out infinite;
}

@media (max-width: 767px) {
  .helper-content {
    padding: 16px 20px;
    max-width: calc(100vw - 40px);
  }
}

@keyframes helperPulse {
  0%, 100% {
    box-shadow: 0 8px 32px rgba(100, 200, 255, 0.4);
  }
  50% {
    box-shadow: 0 8px 40px rgba(100, 200, 255, 0.6);
  }
}

.helper-content p {
  margin: 0 0 16px 0;
  font-size: 16px;
  font-weight: 500;
  line-height: 1.4;
}

@media (max-width: 767px) {
  .helper-content p {
    font-size: 14px;
    margin-bottom: 12px;
  }
}

.helper-dismiss {
  background: rgba(255, 255, 255, 0.2);
  border: 1px solid rgba(255, 255, 255, 0.3);
  color: #fff;
  padding: 10px 24px;
  border-radius: 8px;
  font-size: 14px;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.2s ease;
}

.helper-dismiss:hover {
  background: rgba(255, 255, 255, 0.3);
  transform: scale(1.05);
}

.helper-dismiss:active {
  transform: scale(0.98);
}

/* ==========================================================================
   NODE VISUAL STATES
   ========================================================================== */

/* Dormant state (default) */
.node.dormant circle {
  opacity: 0.25;
  filter: grayscale(80%) brightness(0.7);
  transition: all 0.3s ease;
}

.node.dormant image {
  opacity: 0;
  transition: opacity 0.3s ease;
}

.node.dormant text {
  opacity: 0;
  transition: opacity 0.3s ease;
}

.node.dormant .node-icon,
.node.dormant .node-badge {
  opacity: 0;
  transition: opacity 0.3s ease;
}

/* Aware state (hover/proximity) */
.node.aware circle {
  opacity: 0.7;
  filter: grayscale(40%) brightness(1.1) drop-shadow(0 0 8px rgba(100, 200, 255, 0.3));
  transition: all 0.3s ease;
}

.node.aware image {
  opacity: 0.8;
  transition: opacity 0.3s ease;
}

.node.aware text {
  opacity: 1;
  transition: opacity 0.3s ease;
}

/* Active state (selected/focused) */
.node.active circle {
  opacity: 1;
  filter: grayscale(0%) brightness(1.2) drop-shadow(0 0 12px rgba(100, 200, 255, 0.6));
  transition: all 0.3s ease;
}

.node.active image {
  opacity: 1;
  transition: opacity 0.3s ease;
}

.node.active text {
  opacity: 1;
  font-weight: 600;
  transition: all 0.3s ease;
}

.node.active .node-icon,
.node.active .node-badge {
  opacity: 1;
  transition: opacity 0.3s ease;
}

/* Current user (always active) */
.node.current-user circle {
  opacity: 1 !important;
  filter: grayscale(0%) brightness(1.2) drop-shadow(0 0 16px rgba(100, 200, 255, 0.8)) !important;
}

.node.current-user image {
  opacity: 1 !important;
}

.node.current-user text {
  opacity: 1 !important;
  font-weight: 700 !important;
}

/* ==========================================================================
   LINK STATES
   ========================================================================== */

.link {
  opacity: 0.1;
  transition: opacity 0.3s ease;
}

.link.active {
  opacity: 0.6;
  stroke-width: 2px;
  transition: all 0.3s ease;
}

.link.connected {
  opacity: 0.3;
  transition: opacity 0.3s ease;
}

/* ==========================================================================
   RESPONSIVE LABELS
   ========================================================================== */

.node text {
  font-size: 12px;
  fill: #fff;
  text-anchor: middle;
  pointer-events: none;
  text-shadow: 0 1px 3px rgba(0, 0, 0, 0.8);
  transition: all 0.3s ease;
}

@media (max-width: 767px) {
  .node text {
    font-size: 11px;
  }
}

/* Prevent label overflow on mobile */
@media (max-width: 767px) {
  .node text {
    max-width: 100px;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
  }
}

/* ==========================================================================
   ICONS & BADGES (Close Zoom Only)
   ========================================================================== */

.node-icon,
.node-badge {
  opacity: 0;
  transition: opacity 0.3s ease;
  pointer-events: none;
}

/* Only show at close zoom */
.zoom-close .node.active .node-icon,
.zoom-close .node.active .node-badge {
  opacity: 1;
}

/* Badge positioning */
.xp-badge {
  transform: translate(15px, -15px);
}

.streak-badge {
  transform: translate(15px, 5px);
}

.theme-icon {
  transform: translate(-15px, -15px);
}

/* Mobile: smaller badges */
@media (max-width: 767px) {
  .node-badge {
    transform: scale(0.8);
  }
}

/* ==========================================================================
   ZOOM TIERS
   ========================================================================== */

/* Far zoom: abstract dots */
.zoom-far .node circle {
  r: 4px !important;
}

.zoom-far .node image,
.zoom-far .node text,
.zoom-far .node-icon,
.zoom-far .node-badge {
  opacity: 0 !important;
}

/* Mid zoom: selective labels */
.zoom-mid .node image {
  opacity: 0.6;
}

.zoom-mid .node text {
  opacity: 0;
}

.zoom-mid .node.important text,
.zoom-mid .node.current-user text,
.zoom-mid .node.active text {
  opacity: 1;
}

/* Close zoom: full details */
.zoom-close .node image {
  opacity: 1;
}

.zoom-close .node text {
  opacity: 1;
}

/* ==========================================================================
   TOUCH TARGETS (Mobile)
   ========================================================================== */

@media (max-width: 767px) {
  /* Ensure minimum 44px touch targets */
  .node circle {
    min-width: 44px;
    min-height: 44px;
  }
  
  /* Add invisible larger hit area */
  .node::before {
    content: '';
    position: absolute;
    width: 44px;
    height: 44px;
    transform: translate(-50%, -50%);
    pointer-events: all;
  }
}

/* ==========================================================================
   FOCUS MODE
   ========================================================================== */

.synapse-focus-mode .node:not(.focused):not(.connected) {
  opacity: 0.1 !important;
  filter: grayscale(100%) !important;
}

.synapse-focus-mode .link:not(.focused-path) {
  opacity: 0.05 !important;
}

.synapse-focus-mode .theme-circle:not(.focused) {
  opacity: 0.1 !important;
}

/* ==========================================================================
   MOTION PREFERENCES
   ========================================================================== */

@media (prefers-reduced-motion: reduce) {
  .node,
  .link,
  .mode-button,
  .helper-content {
    transition: none !important;
    animation: none !important;
  }
  
  .node circle {
    filter: none !important;
  }
}

/* ==========================================================================
   THEME CIRCLES (Discovery Mode Only)
   ========================================================================== */

.theme-circle {
  opacity: 0;
  transition: opacity 0.3s ease;
}

.synapse-discovery-mode .theme-circle {
  opacity: 0.6;
}

.synapse-discovery-mode .theme-circle.active {
  opacity: 1;
}

/* ==========================================================================
   LOADING & TRANSITIONS
   ========================================================================== */

.synapse-loading .node,
.synapse-loading .link {
  opacity: 0;
}

.synapse-ready .node,
.synapse-ready .link {
  opacity: 1;
  transition: opacity 0.6s ease;
}

/* ==========================================================================
   ACCESSIBILITY
   ========================================================================== */

/* Focus indicators for keyboard navigation */
.node:focus-visible {
  outline: 2px solid rgba(100, 200, 255, 0.8);
  outline-offset: 4px;
  border-radius: 50%;
}

.mode-button:focus-visible {
  outline: 2px solid rgba(100, 200, 255, 0.8);
  outline-offset: 2px;
}

/* High contrast mode support */
@media (prefers-contrast: high) {
  .node circle {
    stroke: #fff;
    stroke-width: 2px;
  }
  
  .link {
    stroke: #fff;
    opacity: 0.5;
  }
  
  .mode-button {
    border-width: 2px;
  }
}

/* ==========================================================================
   DARK MODE ADJUSTMENTS
   ========================================================================== */

@media (prefers-color-scheme: light) {
  .synapse-mode-switcher {
    background: rgba(255, 255, 255, 0.95);
  }
  
  .mode-button {
    color: rgba(0, 0, 0, 0.7);
    background: rgba(0, 0, 0, 0.05);
    border-color: rgba(0, 0, 0, 0.1);
  }
  
  .mode-button:hover {
    color: rgba(0, 0, 0, 0.9);
    background: rgba(0, 0, 0, 0.1);
  }
  
  .mode-button.active {
    color: #000;
    background: rgba(100, 200, 255, 0.2);
    border-color: rgba(100, 200, 255, 0.6);
  }
  
  .node text {
    fill: #000;
    text-shadow: 0 1px 3px rgba(255, 255, 255, 0.8);
  }
}

/* ==========================================================================
   TABLET BREAKPOINT
   ========================================================================== */

@media (min-width: 768px) and (max-width: 1024px) {
  .synapse-mode-switcher {
    top: 70px;
    right: 16px;
    padding: 10px;
  }
  
  .mode-button {
    padding: 10px 14px;
    min-width: 120px;
  }
  
  .mode-name {
    font-size: 13px;
  }
  
  .mode-description {
    font-size: 10px;
  }
}

/* ==========================================================================
   DESKTOP ENHANCEMENTS
   ========================================================================== */

@media (min-width: 1025px) {
  /* Smoother hover effects on desktop */
  .node:hover circle {
    transform: scale(1.1);
    transition: transform 0.2s ease;
  }
  
  .mode-button:hover {
    transform: translateY(-3px);
  }
  
  /* Show more details on desktop */
  .node.active .node-icon,
  .node.active .node-badge {
    opacity: 1;
  }
}