:root {
  --bg-primary: #0f141c;
  --bg-secondary: #161e2b;
  --bg-tertiary: #1f2b3e;
  --bg-accent: #2a3b54;
  --text-main: #f0f4f8;
  --text-muted: #8e9fb5;
  --accent-cyan: #00e5ff;
  --accent-orange: #ffb703;
  --accent-blue: #00b4d8;
  --accent-red: #e63946;
  --border: rgba(255, 255, 255, 0.08);
  --border-focus: rgba(0, 229, 255, 0.4);
  --shadow: 0 8px 32px rgba(0, 0, 0, 0.4);
}

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
  user-select: none;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  background-color: var(--bg-primary);
  color: var(--text-main);
  height: 100vh;
  overflow: hidden;
}

.app-container {
  display: flex;
  flex-direction: column;
  height: 100vh;
  width: 100vw;
}

/* --- Topbar --- */
.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 10px 18px;
  background-color: var(--bg-secondary);
  border-bottom: 1px solid var(--border);
  height: 56px;
  z-index: 20;
}

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

.brand-badge {
  background: linear-gradient(135deg, #ff9f1c, #e71d36);
  color: #fff;
  font-weight: 800;
  font-size: 11px;
  padding: 3px 6px;
  border-radius: 4px;
  letter-spacing: 0.5px;
}

.brand-title {
  font-size: 17px;
  font-weight: 700;
  letter-spacing: -0.3px;
  color: #fff;
}

.map-controls {
  display: flex;
  align-items: center;
  gap: 10px;
}

.select-input {
  background: var(--bg-tertiary);
  color: var(--text-main);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 6px 12px;
  font-size: 14px;
  font-weight: 600;
  outline: none;
  cursor: pointer;
  transition: border-color 0.2s;
}

.select-input:hover, .select-input:focus {
  border-color: var(--accent-cyan);
}

.level-btn-group {
  display: flex;
  background: var(--bg-tertiary);
  border-radius: 6px;
  padding: 2px;
  border: 1px solid var(--border);
}

.level-btn {
  background: transparent;
  border: none;
  color: var(--text-muted);
  padding: 4px 10px;
  font-size: 12px;
  font-weight: 600;
  border-radius: 4px;
  cursor: pointer;
  transition: all 0.2s;
}

.level-btn.active {
  background: var(--accent-cyan);
  color: #0f141c;
}

.room-controls {
  display: flex;
  align-items: center;
  gap: 10px;
}

.user-name-wrapper {
  display: flex;
  align-items: center;
  gap: 7px;
  background: var(--bg-tertiary);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 4px 10px;
  transition: border-color 0.2s, box-shadow 0.2s;
}

.user-name-wrapper:hover {
  border-color: rgba(255, 255, 255, 0.25);
}

.user-name-wrapper:focus-within {
  border-color: var(--accent-cyan);
  box-shadow: 0 0 0 2px rgba(0, 229, 255, 0.2);
}

.user-color-dot {
  width: 9px;
  height: 9px;
  border-radius: 50%;
  flex-shrink: 0;
  box-shadow: 0 0 6px currentColor;
}

.username-input {
  background: transparent;
  border: none;
  color: var(--text-main);
  font-family: inherit;
  font-size: 13px;
  font-weight: 600;
  width: 100px;
  outline: none;
  padding: 0;
  transition: width 0.2s ease;
}

.username-input::placeholder {
  color: var(--text-muted);
  font-weight: 400;
}

.username-input:focus {
  width: 130px;
}

.user-badge {
  display: flex;
  align-items: center;
  gap: 6px;
  background: var(--bg-tertiary);
  padding: 5px 10px;
  border-radius: 20px;
  font-size: 12px;
  color: var(--text-muted);
  border: 1px solid var(--border);
}

.status-dot {
  width: 8px;
  height: 8px;
  background: #2ec4b6;
  border-radius: 50%;
  animation: pulse 2s infinite;
}

@keyframes pulse {
  0% { transform: scale(0.95); opacity: 0.8; }
  50% { transform: scale(1.15); opacity: 1; }
  100% { transform: scale(0.95); opacity: 0.8; }
}

/* --- Buttons --- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: var(--bg-tertiary);
  color: var(--text-main);
  border: 1px solid var(--border);
  padding: 6px 12px;
  border-radius: 6px;
  font-size: 13px;
  font-weight: 600;
  cursor: pointer;
  transition: background 0.15s, border-color 0.15s, transform 0.05s;
}

.btn:hover {
  background: var(--bg-accent);
  border-color: rgba(255, 255, 255, 0.2);
}

.btn:active {
  transform: translateY(1px);
}

.btn.danger:hover {
  background: rgba(230, 57, 70, 0.2);
  border-color: var(--accent-red);
  color: #ff6b6b;
}

/* --- Workspace Layout --- */
.workspace {
  display: flex;
  flex: 1;
  overflow: hidden;
  position: relative;
}

/* --- Sidebar --- */
.sidebar {
  width: 200px;
  background: var(--bg-secondary);
  border-right: 1px solid var(--border);
  padding: 14px 12px;
  display: flex;
  flex-direction: column;
  gap: 10px;
  overflow-y: auto;
  z-index: 10;
}

.section-title {
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.8px;
  color: var(--text-muted);
  font-weight: 700;
  margin-top: 4px;
}

.tool-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 6px;
}

.tool-btn {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 4px;
  background: var(--bg-tertiary);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 8px 4px;
  color: var(--text-muted);
  font-size: 11px;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.15s;
}

.tool-btn:hover {
  background: var(--bg-accent);
  color: #fff;
}

.tool-btn.active,
.decal-btn.active {
  background: rgba(0, 229, 255, 0.15);
  border-color: var(--accent-cyan);
  color: var(--accent-cyan);
}

.decal-btn.active .decal-svg-icon {
  filter: drop-shadow(0 0 5px rgba(0, 229, 255, 0.7));
}

#colorSection {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.color-palette {
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  gap: 4px;
}

.color-btn {
  width: 22px;
  height: 22px;
  border-radius: 50%;
  border: 2px solid transparent;
  cursor: pointer;
  transition: transform 0.15s, border-color 0.15s;
}

.color-btn.active {
  transform: scale(1.15);
  border-color: #fff;
}

/* Stroke Size Slider */
.stroke-size-control {
  display: flex;
  flex-direction: column;
  gap: 6px;
  margin-top: 2px;
}

.size-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.size-label {
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.8px;
  color: var(--text-muted);
  font-weight: 700;
}

.size-value {
  font-size: 11px;
  font-weight: 700;
  color: var(--accent-cyan);
  background: rgba(0, 229, 255, 0.12);
  padding: 1px 7px;
  border-radius: 10px;
  border: 1px solid rgba(0, 229, 255, 0.35);
}

.size-slider-wrapper {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.size-slider {
  -webkit-appearance: none;
  appearance: none;
  width: 100%;
  height: 5px;
  background: var(--bg-tertiary);
  border: 1px solid var(--border);
  border-radius: 3px;
  outline: none;
  cursor: pointer;
  margin: 4px 0;
}

.size-slider::-webkit-slider-thumb {
  -webkit-appearance: none;
  appearance: none;
  width: 15px;
  height: 15px;
  border-radius: 50%;
  background: var(--accent-cyan);
  border: 2px solid #ffffff;
  cursor: pointer;
  box-shadow: 0 0 6px rgba(0, 229, 255, 0.6);
  transition: transform 0.1s ease, box-shadow 0.1s ease;
}

.size-slider::-webkit-slider-thumb:hover {
  transform: scale(1.18);
  box-shadow: 0 0 10px rgba(0, 229, 255, 0.9);
}

.size-slider::-moz-range-thumb {
  width: 15px;
  height: 15px;
  border-radius: 50%;
  background: var(--accent-cyan);
  border: 2px solid #ffffff;
  cursor: pointer;
  box-shadow: 0 0 6px rgba(0, 229, 255, 0.6);
  transition: transform 0.1s ease, box-shadow 0.1s ease;
}

.size-slider::-moz-range-thumb:hover {
  transform: scale(1.18);
  box-shadow: 0 0 10px rgba(0, 229, 255, 0.9);
}

.size-steps-labels {
  display: flex;
  justify-content: space-between;
  padding: 0 2px;
}

.size-steps-labels span {
  font-size: 10px;
  font-weight: 600;
  color: var(--text-muted);
  cursor: pointer;
  transition: color 0.15s, transform 0.15s;
  user-select: none;
  padding: 0 2px;
}

.size-steps-labels span:hover {
  color: #ffffff;
}

.size-steps-labels span.active {
  color: var(--accent-cyan);
  font-weight: 800;
}

/* Decal Palette */
.decal-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 6px;
}

.decal-btn {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 4px;
  background: var(--bg-tertiary);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 8px 4px;
  color: var(--text-main);
  font-size: 11px;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.15s;
}

.decal-btn:hover {
  background: var(--bg-accent);
  border-color: rgba(255, 255, 255, 0.2);
}

.decal-icon {
  font-size: 18px;
}

.decal-svg-icon {
  width: 22px;
  height: 22px;
  object-fit: contain;
  filter: drop-shadow(0 2px 4px rgba(0, 0, 0, 0.4));
}

.token-preview {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 24px;
  height: 24px;
  border-radius: 50%;
  font-weight: 800;
  font-size: 11px;
}

.t-token {
  background: var(--accent-orange);
  color: #0f141c;
}

.ct-token {
  background: var(--accent-blue);
  color: #fff;
}

.action-buttons {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.action-btn {
  justify-content: center;
  font-size: 12px;
}

.zoom-controls {
  display: flex;
  align-items: center;
  justify-content: space-between;
  background: var(--bg-tertiary);
  border-radius: 6px;
  border: 1px solid var(--border);
  padding: 2px;
  width: 100%;
}

.icon-btn {
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  background: transparent;
  border: none;
  color: var(--text-muted);
  padding: 6px 0;
  font-size: 13px;
  font-weight: 700;
  line-height: 1;
  cursor: pointer;
  text-align: center;
  border-radius: 4px;
  transition: color 0.15s, background 0.15s;
}

.icon-btn:hover {
  color: #fff;
  background: rgba(255, 255, 255, 0.05);
}

/* --- Canvas Viewport --- */
.canvas-viewport {
  flex: 1;
  position: relative;
  background-color: #080b10;
  background-image: 
    radial-gradient(circle at 50% 50%, rgba(22, 30, 43, 0.5) 0%, rgba(8, 11, 16, 1) 100%),
    linear-gradient(rgba(255, 255, 255, 0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.03) 1px, transparent 1px);
  background-size: 100% 100%, 32px 32px, 32px 32px;
  overflow: hidden;
  cursor: default;
}

.canvas-viewport.panning {
  cursor: grab;
}

.canvas-viewport.panning:active {
  cursor: grabbing;
}

.canvas-transform-wrapper {
  position: absolute;
  top: 0;
  left: 0;
  width: 1024px;
  height: 1024px;
  transform-origin: 0 0;
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.8);
}

#mainCanvas {
  display: block;
  width: 1024px;
  height: 1024px;
  background: #000;
}

.laser-layer {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
}

.laser-dot {
  position: absolute;
  width: 12px;
  height: 12px;
  border-radius: 50%;
  box-shadow: 0 0 14px currentColor, 0 0 28px currentColor;
  transform: translate(-50%, -50%);
  pointer-events: none;
  transition: left 0.05s linear, top 0.05s linear;
}

.laser-tag {
  position: absolute;
  top: 14px;
  left: 50%;
  transform: translateX(-50%);
  background: rgba(0, 0, 0, 0.8);
  color: #fff;
  font-size: 10px;
  font-weight: 700;
  padding: 2px 6px;
  border-radius: 4px;
  white-space: nowrap;
  border: 1px solid rgba(255, 255, 255, 0.2);
}

.viewport-hint {
  position: absolute;
  bottom: 12px;
  right: 14px;
  background: rgba(15, 20, 28, 0.75);
  backdrop-filter: blur(8px);
  border: 1px solid var(--border);
  padding: 5px 12px;
  border-radius: 20px;
  font-size: 11px;
  color: var(--text-muted);
  pointer-events: none;
}

/* --- Toast --- */
.toast {
  position: fixed;
  bottom: 24px;
  left: 50%;
  transform: translateX(-50%) translateY(0);
  background: var(--bg-tertiary);
  color: #fff;
  border: 1px solid var(--accent-cyan);
  box-shadow: var(--shadow);
  padding: 8px 18px;
  border-radius: 20px;
  font-size: 13px;
  font-weight: 600;
  z-index: 100;
  transition: opacity 0.25s, transform 0.25s;
}

.toast.hidden {
  opacity: 0;
  transform: translateX(-50%) translateY(10px);
  pointer-events: none;
}

/* --- Sidebar Footer & Impressum --- */
.sidebar-footer {
  margin-top: auto;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  width: 100%;
}

.btn-impressum {
  background: transparent;
  border: none;
  color: var(--text-muted);
  font-size: 11px;
  cursor: pointer;
  text-decoration: underline;
  text-underline-offset: 3px;
  transition: color 0.15s;
  padding: 4px 6px;
}

.btn-impressum:hover {
  color: var(--accent-cyan);
}

/* --- Modal Overlay & Dialog --- */
.modal-overlay {
  position: fixed;
  inset: 0;
  z-index: 1000;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: opacity 0.2s ease, visibility 0.2s ease;
}

.modal-overlay.hidden {
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
}

.modal-backdrop {
  position: absolute;
  inset: 0;
  background: rgba(10, 14, 20, 0.78);
  backdrop-filter: blur(5px);
}

.modal-content {
  position: relative;
  width: 90%;
  max-width: 520px;
  max-height: 85vh;
  background: var(--bg-secondary);
  border: 1px solid var(--border);
  border-radius: 10px;
  box-shadow: 0 16px 48px rgba(0, 0, 0, 0.6);
  display: flex;
  flex-direction: column;
  overflow: hidden;
  animation: modalPop 0.2s ease-out;
}

@keyframes modalPop {
  from {
    transform: scale(0.96) translateY(8px);
    opacity: 0;
  }
  to {
    transform: scale(1) translateY(0);
    opacity: 1;
  }
}

.modal-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 18px;
  background: var(--bg-tertiary);
  border-bottom: 1px solid var(--border);
}

.modal-header h3 {
  font-size: 15px;
  font-weight: 700;
  color: var(--text-main);
  letter-spacing: 0.3px;
}

.modal-close-btn {
  background: transparent;
  border: none;
  color: var(--text-muted);
  font-size: 22px;
  line-height: 1;
  cursor: pointer;
  padding: 2px 6px;
  border-radius: 4px;
  transition: color 0.15s, background 0.15s;
}

.modal-close-btn:hover {
  color: #fff;
  background: rgba(255, 255, 255, 0.1);
}

.modal-body {
  padding: 18px 20px;
  overflow-y: auto;
  font-size: 13px;
  line-height: 1.6;
  color: var(--text-muted);
  user-select: text;
}

.modal-body * {
  user-select: text;
}

.impressum-block {
  margin-bottom: 16px;
}

.impressum-block:last-child {
  margin-bottom: 0;
}

.impressum-block h4 {
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: 0.6px;
  color: var(--accent-cyan);
  margin-bottom: 6px;
  font-weight: 700;
}

.impressum-block p {
  margin-bottom: 6px;
  color: var(--text-main);
}

.impressum-block a,
.legal-link {
  color: var(--accent-cyan);
  text-decoration: none;
  font-weight: 500;
}

.impressum-block a:hover,
.legal-link:hover {
  text-decoration: underline;
}

.credits-list {
  list-style: disc inside;
  margin: 6px 0 10px 4px;
  color: var(--text-main);
}

.credits-list li {
  margin-bottom: 4px;
}

.valve-notice {
  font-size: 11px;
  line-height: 1.5;
  color: var(--text-muted);
  background: var(--bg-tertiary);
  padding: 8px 10px;
  border-radius: 6px;
  border: 1px solid var(--border);
  margin-top: 10px;
}