/* Modern Design Tokens */
:root {
  --bg-color: #080c16;
  --panel-bg: rgba(13, 22, 43, 0.7);
  --border-color: rgba(255, 255, 255, 0.08);
  --border-hover: rgba(0, 210, 255, 0.3);
  --text-main: #f1f5f9;
  --text-muted: #94a3b8;
  
  --primary: #00d2ff;
  --primary-glow: rgba(0, 210, 255, 0.35);
  --primary-dark: #008ca9;
  
  --success: #10b981;
  --success-glow: rgba(16, 185, 129, 0.3);
  
  --warning: #f59e0b;
  --warning-glow: rgba(245, 158, 11, 0.3);
  
  --danger: #ef4444;
  --danger-glow: rgba(239, 68, 68, 0.3);

  --glass-shadow: 0 8px 32px 0 rgba(0, 0, 0, 0.37);
  --font-main: 'Outfit', sans-serif;
  --font-code: 'JetBrains Mono', monospace;
  
  --layer-base: #1e293b;
  --layer-workdir: #334155;
  --layer-copy: #0369a1;
  --layer-run: #0f766e;
  --layer-expose: #6d28d9;
  --layer-cmd: #be185d;
}

/* Global Reset & Base */
* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

body {
  background-color: var(--bg-color);
  color: var(--text-main);
  font-family: var(--font-main);
  min-height: 100vh;
  position: relative;
  overflow-x: hidden;
  padding-bottom: 2rem;
}

/* Glowing background graphics */
.glow-bg {
  position: absolute;
  top: -20%;
  left: 30%;
  width: 60vw;
  height: 60vw;
  background: radial-gradient(circle, rgba(0, 210, 255, 0.08) 0%, rgba(8, 12, 22, 0) 70%);
  z-index: -1;
  pointer-events: none;
  border-radius: 50%;
}

/* Scrollbar styling */
::-webkit-scrollbar {
  width: 8px;
}
::-webkit-scrollbar-track {
  background: rgba(8, 12, 22, 0.5);
}
::-webkit-scrollbar-thumb {
  background: rgba(255, 255, 255, 0.1);
  border-radius: 4px;
}
::-webkit-scrollbar-thumb:hover {
  background: var(--primary);
}

/* Header */
header {
  border-bottom: 1px solid var(--border-color);
  background: rgba(8, 12, 22, 0.8);
  backdrop-filter: blur(10px);
  position: sticky;
  top: 0;
  z-index: 100;
}

.header-container {
  max-width: 1400px;
  margin: 0 auto;
  padding: 1.25rem 2rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.logo-area {
  display: flex;
  align-items: center;
  gap: 1rem;
}

.docker-logo {
  color: var(--primary);
  filter: drop-shadow(0 0 8px var(--primary-glow));
  animation: logo-float 4s ease-in-out infinite alternate;
}

@keyframes logo-float {
  0% { transform: translateY(0px); }
  100% { transform: translateY(-4px); }
}

.logo-text h1 {
  font-size: 1.5rem;
  font-weight: 800;
  letter-spacing: 0.1em;
  line-height: 1.1;
}

.logo-text h1 span {
  color: var(--primary);
  text-shadow: 0 0 12px var(--primary-glow);
}

.logo-text p {
  font-size: 0.75rem;
  color: var(--text-muted);
  letter-spacing: 0.05em;
  text-transform: uppercase;
}

.connection-status {
  display: flex;
  gap: 1rem;
}

.badge-item {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid var(--border-color);
  padding: 0.5rem 1rem;
  border-radius: 30px;
  font-size: 0.85rem;
  font-weight: 500;
  transition: all 0.3s ease;
}

.badge-item:hover {
  border-color: rgba(255, 255, 255, 0.15);
}

#docker-badge.dockeractive {
  border-color: rgba(16, 185, 129, 0.3);
  background: rgba(16, 185, 129, 0.05);
  color: #a7f3d0;
}

#docker-badge.dockernotactive {
  border-color: rgba(245, 158, 11, 0.3);
  background: rgba(245, 158, 11, 0.05);
  color: #fde68a;
}

.pulse-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  display: inline-block;
  position: relative;
}

.pulse-dot.green {
  background-color: var(--success);
  box-shadow: 0 0 0 0 var(--success-glow);
  animation: pulse-green 1.8s infinite;
}

.pulse-dot.blue {
  background-color: var(--primary);
  box-shadow: 0 0 0 0 var(--primary-glow);
  animation: pulse-blue 1.8s infinite;
}

.pulse-dot.amber {
  background-color: var(--warning);
  box-shadow: 0 0 0 0 var(--warning-glow);
  animation: pulse-amber 1.8s infinite;
}

.pulse-dot.grey {
  background-color: #64748b;
}

@keyframes pulse-green {
  0% { transform: scale(0.95); box-shadow: 0 0 0 0 var(--success-glow); }
  70% { transform: scale(1); box-shadow: 0 0 0 6px rgba(16, 185, 129, 0); }
  100% { transform: scale(0.95); box-shadow: 0 0 0 0 rgba(16, 185, 129, 0); }
}

@keyframes pulse-blue {
  0% { transform: scale(0.95); box-shadow: 0 0 0 0 var(--primary-glow); }
  70% { transform: scale(1); box-shadow: 0 0 0 6px rgba(0, 210, 255, 0); }
  100% { transform: scale(0.95); box-shadow: 0 0 0 0 rgba(0, 210, 255, 0); }
}

@keyframes pulse-amber {
  0% { transform: scale(0.95); box-shadow: 0 0 0 0 var(--warning-glow); }
  70% { transform: scale(1); box-shadow: 0 0 0 6px rgba(245, 158, 11, 0); }
  100% { transform: scale(0.95); box-shadow: 0 0 0 0 rgba(245, 158, 11, 0); }
}

/* Layout Grid */
.dashboard-grid {
  max-width: 1400px;
  margin: 2rem auto;
  padding: 0 2rem;
  display: grid;
  grid-template-columns: 1.1fr 1.9fr;
  gap: 2rem;
}

@media (max-width: 1024px) {
  .dashboard-grid {
    grid-template-columns: 1fr;
  }
}

/* Card Styling */
.card {
  background: var(--panel-bg);
  border: 1px solid var(--border-color);
  border-radius: 16px;
  box-shadow: var(--glass-shadow);
  backdrop-filter: blur(12px);
  padding: 1.5rem;
  display: flex;
  flex-direction: column;
  transition: border-color 0.3s ease, box-shadow 0.3s ease;
}

.card:hover {
  border-color: rgba(255, 255, 255, 0.12);
  box-shadow: 0 10px 40px 0 rgba(0, 0, 0, 0.45);
}

.card-header {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  margin-bottom: 1.5rem;
  border-bottom: 1px solid var(--border-color);
  padding-bottom: 0.75rem;
}

.card-icon {
  color: var(--primary);
  display: flex;
  align-items: center;
}

.card-header h2 {
  font-size: 1.25rem;
  font-weight: 700;
  letter-spacing: -0.01em;
}

/* Diagnostics Panel */
.metrics-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
  margin-bottom: 1.5rem;
}

.metric-box {
  background: rgba(255, 255, 255, 0.02);
  border: 1px solid var(--border-color);
  border-radius: 10px;
  padding: 0.75rem 1rem;
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
}

.metric-box.full-width {
  grid-column: span 2;
}

.metric-label {
  font-size: 0.7rem;
  text-transform: uppercase;
  color: var(--text-muted);
  letter-spacing: 0.05em;
  font-weight: 600;
}

.metric-value {
  font-size: 1.05rem;
  font-weight: 600;
  color: var(--text-main);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.code-font {
  font-family: var(--font-code);
  font-size: 0.9rem;
}

/* Progress bar section */
.progress-section {
  background: rgba(255, 255, 255, 0.02);
  border: 1px solid var(--border-color);
  border-radius: 10px;
  padding: 1.25rem;
  margin-bottom: 1.5rem;
}

.progress-header {
  display: flex;
  justify-content: space-between;
  font-size: 0.85rem;
  font-weight: 600;
  margin-bottom: 0.5rem;
}

.progress-bar-container {
  height: 8px;
  background: rgba(255, 255, 255, 0.08);
  border-radius: 4px;
  overflow: hidden;
  margin-bottom: 0.5rem;
}

.progress-bar-fill {
  height: 100%;
  width: 0%;
  background: linear-gradient(90deg, #00b4db 0%, var(--primary) 100%);
  box-shadow: 0 0 10px var(--primary-glow);
  border-radius: 4px;
  transition: width 0.8s cubic-bezier(0.4, 0, 0.2, 1);
}

.progress-footer {
  display: flex;
  justify-content: space-between;
  font-size: 0.75rem;
  color: var(--text-muted);
  font-family: var(--font-code);
}

.extra-metrics {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  margin-bottom: 1.5rem;
  border-top: 1px solid var(--border-color);
  padding-top: 1.25rem;
}

.extra-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.85rem;
}

.extra-row span:first-child {
  color: var(--text-muted);
}

.extra-row span:last-child {
  font-weight: 500;
}

.badge {
  background: rgba(0, 210, 255, 0.1);
  color: var(--primary);
  border: 1px solid rgba(0, 210, 255, 0.2);
  padding: 0.15rem 0.6rem;
  border-radius: 4px;
  font-size: 0.75rem;
  text-transform: uppercase;
  font-weight: 600;
  letter-spacing: 0.05em;
}

.action-bar {
  margin-top: auto;
}

/* Visualizer Panel layout */
.visualizer-container {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 1.5rem;
  flex-grow: 1;
}

@media (max-width: 768px) {
  .visualizer-container {
    grid-template-columns: 1fr;
  }
}

/* Code Editor */
.code-editor {
  background: rgba(5, 8, 16, 0.95);
  border: 1px solid var(--border-color);
  border-radius: 12px;
  overflow: hidden;
  display: flex;
  flex-direction: column;
  height: 100%;
  box-shadow: inset 0 0 20px rgba(0,0,0,0.8);
}

.editor-header {
  background: rgba(15, 23, 42, 0.8);
  border-bottom: 1px solid var(--border-color);
  padding: 0.75rem 1rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.editor-title {
  font-family: var(--font-code);
  font-size: 0.8rem;
  color: var(--text-muted);
  font-weight: 600;
}

.editor-actions {
  display: flex;
  gap: 0.5rem;
}

.code-lines {
  padding: 1.25rem 0.5rem;
  font-family: var(--font-code);
  font-size: 0.85rem;
  line-height: 1.7;
  overflow-y: auto;
}

.code-line {
  padding: 0 1rem;
  border-left: 2px solid transparent;
  cursor: pointer;
  transition: all 0.2s ease;
  user-select: none;
}

.code-line:hover {
  background: rgba(255, 255, 255, 0.03);
  color: #fff;
  border-left-color: rgba(255, 255, 255, 0.2);
}

.code-line.active-step {
  background: rgba(0, 210, 255, 0.07);
  border-left-color: var(--primary);
  color: #fff;
}

.code-line.completed-step {
  border-left-color: var(--success);
  opacity: 0.8;
}

.ln {
  display: inline-block;
  width: 1.5rem;
  color: #475569;
  margin-right: 1rem;
  text-align: right;
  user-select: none;
}

.keyword {
  color: #38bdf8;
  font-weight: 700;
}

.string {
  color: #e2e8f0;
}

/* Buttons */
.btn {
  font-family: var(--font-main);
  border-radius: 8px;
  border: 1px solid transparent;
  padding: 0.5rem 1.25rem;
  font-weight: 600;
  font-size: 0.85rem;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
}

.btn-sm {
  padding: 0.35rem 0.75rem;
  font-size: 0.75rem;
  border-radius: 6px;
}

.btn-primary {
  background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
  color: #040814;
  box-shadow: 0 4px 14px 0 var(--primary-glow);
}

.btn-primary:hover:not(:disabled) {
  transform: translateY(-1px);
  box-shadow: 0 6px 20px 0 var(--primary-glow);
  filter: brightness(1.1);
}

.btn-primary:active:not(:disabled) {
  transform: translateY(0);
}

.btn-primary:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

.btn-secondary {
  background: rgba(255, 255, 255, 0.03);
  border-color: var(--border-color);
  color: var(--text-main);
}

.btn-secondary:hover {
  background: rgba(255, 255, 255, 0.07);
  border-color: rgba(255, 255, 255, 0.2);
}

.btn-dark {
  background: rgba(15, 23, 42, 0.6);
  border-color: var(--border-color);
  color: var(--text-muted);
}

.btn-dark:hover {
  color: #fff;
  border-color: rgba(255, 255, 255, 0.2);
}

/* Layer Stack View */
.stack-view {
  background: rgba(5, 8, 16, 0.4);
  border: 1px solid var(--border-color);
  border-radius: 12px;
  padding: 1.25rem;
  display: flex;
  flex-direction: column;
  height: 100%;
  min-height: 350px;
}

.stack-title {
  font-size: 0.8rem;
  text-transform: uppercase;
  color: var(--text-muted);
  letter-spacing: 0.05em;
  font-weight: 700;
  margin-bottom: 1rem;
}

.layers-wrapper {
  flex-grow: 1;
  display: flex;
  flex-direction: column-reverse; /* Stacks bottom up */
  justify-content: flex-start;
  gap: 0.75rem;
  position: relative;
  overflow-y: auto;
  padding-bottom: 0.5rem;
}

.empty-stack-placeholder {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  text-align: center;
  color: var(--text-muted);
  width: 80%;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 1rem;
}

.empty-stack-placeholder svg {
  opacity: 0.25;
  color: var(--primary);
}

.empty-stack-placeholder p {
  font-size: 0.8rem;
  line-height: 1.5;
}

/* Layer Block styling */
.layer-block {
  border-radius: 8px;
  padding: 0.75rem 1rem;
  border: 1px solid rgba(255, 255, 255, 0.05);
  position: relative;
  overflow: hidden;
  animation: drop-in 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275) forwards;
  transform-origin: bottom center;
}

@keyframes drop-in {
  0% { transform: translateY(-50px) scaleY(0.5); opacity: 0; }
  100% { transform: translateY(0) scaleY(1); opacity: 1; }
}

.layer-block::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  bottom: 0;
  width: 4px;
}

.layer-block.layer-idx-0 { background: rgba(30, 41, 59, 0.7); border-color: rgba(30, 41, 59, 0.9); }
.layer-block.layer-idx-0::before { background-color: #64748b; }

.layer-block.layer-idx-1 { background: rgba(51, 65, 85, 0.7); border-color: rgba(51, 65, 85, 0.9); }
.layer-block.layer-idx-1::before { background-color: #94a3b8; }

.layer-block.layer-idx-2 { background: rgba(3, 105, 161, 0.5); border-color: rgba(3, 105, 161, 0.8); }
.layer-block.layer-idx-2::before { background-color: #38bdf8; }

.layer-block.layer-idx-3 { background: rgba(15, 118, 110, 0.5); border-color: rgba(15, 118, 110, 0.8); }
.layer-block.layer-idx-3::before { background-color: #2dd4bf; }

.layer-block.layer-idx-4 { background: rgba(109, 40, 217, 0.4); border-color: rgba(109, 40, 217, 0.7); }
.layer-block.layer-idx-4::before { background-color: #a78bfa; }

.layer-block.layer-idx-5 { background: rgba(190, 24, 93, 0.4); border-color: rgba(190, 24, 93, 0.7); }
.layer-block.layer-idx-5::before { background-color: #f472b6; }

.layer-block.layer-idx-6 { background: rgba(16, 185, 129, 0.4); border-color: rgba(16, 185, 129, 0.7); }
.layer-block.layer-idx-6::before { background-color: var(--success); }

.layer-header {
  display: flex;
  justify-content: space-between;
  margin-bottom: 0.25rem;
}

.layer-title {
  font-weight: 700;
  font-size: 0.85rem;
  color: #fff;
}

.layer-size {
  font-family: var(--font-code);
  font-size: 0.75rem;
  color: var(--text-muted);
}

.layer-cmd {
  font-family: var(--font-code);
  font-size: 0.75rem;
  color: var(--text-muted);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.layer-cache {
  position: absolute;
  right: 1rem;
  bottom: 0.5rem;
  font-size: 0.65rem;
  text-transform: uppercase;
  font-weight: 700;
  color: var(--success);
}

/* Commands Cheat Sheet */
.commands-section {
  max-width: 1400px;
  margin: 3rem auto 0 auto;
  padding: 0 2rem;
  border-top: 1px solid var(--border-color);
  padding-top: 3rem;
}

.commands-section h2 {
  font-size: 1.5rem;
  font-weight: 800;
  text-align: center;
  margin-bottom: 0.25rem;
}

.section-subtitle {
  text-align: center;
  color: var(--text-muted);
  font-size: 0.9rem;
  margin-bottom: 2rem;
}

.command-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 1.5rem;
}

.command-card {
  background: rgba(255, 255, 255, 0.01);
  border: 1px solid var(--border-color);
  border-radius: 12px;
  padding: 1.25rem;
  cursor: pointer;
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  position: relative;
  overflow: hidden;
}

.command-card:hover {
  background: rgba(0, 210, 255, 0.02);
  border-color: var(--border-hover);
  transform: translateY(-2px);
}

.cmd-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.85rem;
  font-weight: 700;
  color: var(--text-main);
}

.copy-badge {
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid var(--border-color);
  padding: 0.15rem 0.5rem;
  border-radius: 4px;
  font-size: 0.7rem;
  font-weight: 600;
  color: var(--text-muted);
  transition: all 0.2s ease;
}

.command-card:hover .copy-badge {
  background: var(--primary);
  color: #040814;
  border-color: var(--primary);
}

.command-card code {
  font-family: var(--font-code);
  font-size: 0.8rem;
  background: rgba(5, 8, 16, 0.6);
  padding: 0.5rem 0.75rem;
  border-radius: 6px;
  color: #38bdf8;
  border: 1px solid rgba(255,255,255,0.03);
  overflow-x: auto;
  white-space: nowrap;
}

.command-card p {
  font-size: 0.8rem;
  color: var(--text-muted);
  line-height: 1.5;
}

/* Footer Credits */
.footer-credits {
  text-align: center;
  margin-top: 3rem;
  padding-top: 1.5rem;
  border-top: 1px solid var(--border-color);
  font-size: 0.8rem;
  color: #475569;
}