/**
 * SimpleGallery WebOS - Pipe Connect & Netwalk Puzzle
 * Stylesheet with SVG Pipes, Neon Energy Liquid Glow, Smooth Rotations & Torus Grid Indicators.
 */

.pipe-app {
  display: flex;
  flex-direction: column;
  height: 100%;
  width: 100%;
  background: var(--window-bg, var(--bg-main, radial-gradient(circle at 50% 20%, #0f172a 0%, #020617 80%, #000000 100%)));
  color: var(--text-main, #f8fafc);
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  user-select: none;
  overflow: hidden;
  position: relative;
}

/* Header & Controls */
.pipe-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 8px 16px;
  background: var(--header-bg, var(--bg-card, rgba(15, 23, 42, 0.85)));
  backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--border-color, rgba(56, 189, 248, 0.2));
  gap: 12px;
  z-index: 10;
  flex-wrap: wrap;
}

.pipe-stats {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
}

.pipe-stat-pill {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: var(--bg-card, rgba(255, 255, 255, 0.08));
  border: 1px solid var(--border-color, rgba(255, 255, 255, 0.12));
  border-radius: 9999px;
  padding: 4px 12px;
  font-size: 0.82rem;
  font-weight: 600;
  color: var(--text-main, #e2e8f0);
}

.pipe-stat-pill.connected {
  background: rgba(56, 189, 248, 0.18);
  border-color: rgba(56, 189, 248, 0.4);
  color: #38bdf8;
}

.pipe-stat-pill.wrap-mode {
  background: rgba(168, 85, 247, 0.18);
  border-color: rgba(168, 85, 247, 0.4);
  color: #c084fc;
}

.pipe-controls {
  display: flex;
  align-items: center;
  gap: 8px;
}

.pipe-btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 5px 12px;
  background: var(--bg-card, rgba(255, 255, 255, 0.1));
  border: 1px solid var(--border-color, rgba(255, 255, 255, 0.15));
  border-radius: 8px;
  color: var(--text-main, #fff);
  font-size: 0.8rem;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
}

.pipe-btn:hover {
  background: var(--border-color-hover, rgba(255, 255, 255, 0.2));
  transform: translateY(-1px);
}

.pipe-btn.primary {
  background: linear-gradient(135deg, #0284c7 0%, #0369a1 100%);
  border-color: #38bdf8;
  box-shadow: 0 4px 12px rgba(2, 132, 199, 0.35);
}

.pipe-btn.accent {
  background: linear-gradient(135deg, #a855f7 0%, #9333ea 100%);
  border-color: #c084fc;
  box-shadow: 0 4px 12px rgba(168, 85, 247, 0.35);
}

/* Arena & Grid */
.pipe-arena {
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 16px;
  overflow: auto;
  position: relative;
}

.pipe-grid-wrapper {
  position: relative;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  background: rgba(30, 41, 59, 0.5);
  backdrop-filter: blur(20px);
  border: 2px solid rgba(56, 189, 248, 0.25);
  border-radius: 16px;
  padding: 12px;
  box-shadow: 0 25px 50px rgba(0, 0, 0, 0.8), 0 0 35px rgba(56, 189, 248, 0.15);
}

.pipe-grid-wrapper.circular-wrap {
  border: 2px dashed rgba(168, 85, 247, 0.6);
  box-shadow: 0 25px 50px rgba(0, 0, 0, 0.8), 0 0 35px rgba(168, 85, 247, 0.25);
}

.pipe-grid {
  display: grid;
  gap: 4px;
  background: rgba(15, 23, 42, 0.8);
  padding: 6px;
  border-radius: 10px;
  border: 1px solid rgba(255, 255, 255, 0.1);
  touch-action: manipulation;
}

/* Pipe Cell Tile */
.pipe-cell {
  position: relative;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: background 0.15s ease, transform 0.1s ease;
  overflow: hidden;
}

.pipe-cell:hover {
  background: rgba(255, 255, 255, 0.12);
}

.pipe-cell.source-cell {
  background: rgba(251, 191, 36, 0.15);
  border-color: rgba(251, 191, 36, 0.5);
  box-shadow: inset 0 0 15px rgba(251, 191, 36, 0.3);
}

.pipe-cell.hint-active {
  animation: pulse-hint 1s infinite alternate;
}

@keyframes pulse-hint {
  0% { box-shadow: 0 0 0 2px rgba(251, 191, 36, 0.4); }
  100% { box-shadow: 0 0 16px 4px rgba(251, 191, 36, 0.9); }
}

/* SVG Pipe Element inside Cell */
.pipe-svg {
  width: 100%;
  height: 100%;
  transition: transform 0.22s cubic-bezier(0.175, 0.885, 0.32, 1.275);
}

/* Pipe Segment Styling */
.pipe-body {
  stroke: #475569;
  stroke-width: 16;
  stroke-linecap: round;
  stroke-linejoin: round;
  fill: none;
  transition: stroke 0.25s ease, filter 0.25s ease;
}

.pipe-inner {
  stroke: #1e293b;
  stroke-width: 8;
  stroke-linecap: round;
  stroke-linejoin: round;
  fill: none;
  transition: stroke 0.25s ease;
}

/* Connected / Flowing State */
.pipe-cell.connected .pipe-body {
  stroke: #0284c7;
  filter: drop-shadow(0 0 6px #38bdf8);
}

.pipe-cell.connected .pipe-inner {
  stroke: #38bdf8;
}

/* Source Terminal Hub */
.pipe-source-hub {
  fill: #fbbf24;
  stroke: #ffffff;
  stroke-width: 3;
  filter: drop-shadow(0 0 10px #fbbf24);
  animation: pulse-hub 2s infinite;
}

@keyframes pulse-hub {
  0%, 100% { transform: scale(1); }
  50% { transform: scale(1.12); }
}

/* Wrap Edge Guides */
.wrap-indicator-top, .wrap-indicator-bottom, .wrap-indicator-left, .wrap-indicator-right {
  position: absolute;
  font-size: 0.68rem;
  font-weight: 700;
  color: #c084fc;
  letter-spacing: 2px;
  pointer-events: none;
  opacity: 0.8;
}
.wrap-indicator-top { top: -20px; }
.wrap-indicator-bottom { bottom: -20px; }
.wrap-indicator-left { left: -32px; transform: rotate(-90deg); }
.wrap-indicator-right { right: -32px; transform: rotate(90deg); }

/* Victory Modal */
.pipe-modal {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(2, 6, 23, 0.85);
  backdrop-filter: blur(12px);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 30;
  animation: fade-in 0.3s ease;
}

.pipe-card {
  background: rgba(15, 23, 42, 0.95);
  border: 2px solid #38bdf8;
  border-radius: 20px;
  padding: 2.5rem 3rem;
  box-shadow: 0 25px 60px rgba(0,0,0,0.8), 0 0 50px rgba(56, 189, 248, 0.3);
  text-align: center;
  max-width: 440px;
}

.pipe-card-title {
  font-size: 1.8rem;
  font-weight: 800;
  color: #38bdf8;
  margin-bottom: 0.5rem;
}