:root {
  --sidebar-bg: #2b2a26;
  --panel-bg: #25241f;
  --sidebar-border: #45423a;
  --text: #ece6d6;
  --text-muted: #a39d8c;
  --accent: #c9a24a;
  --button-bg: #3a3831;
  --button-hover: #48453c;
}

* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html,
body {
  height: 100%;
  overflow: hidden;
  font-family: Georgia, "Times New Roman", serif;
  color: var(--text);
  background: var(--sidebar-bg);
}

/* Terreno ~70% in larghezza e ~80% in altezza; sotto un'area libera del 20% */
.app {
  display: grid;
  grid-template-columns: 70% 30%;
  grid-template-rows: 80% 20%;
  height: 100vh;
}

.board {
  grid-column: 1;
  grid-row: 1;
  position: relative;
  overflow: hidden;
  min-height: 0;
}

#terrain-canvas {
  display: block;
  width: 100%;
  height: 100%;
  touch-action: none;
}

.bottom-panel {
  grid-column: 1;
  grid-row: 2;
  background: var(--panel-bg);
  border-top: 1px solid var(--sidebar-border);
  min-height: 0;
}

/* Menu verticale a destra */
.sidebar {
  grid-column: 2;
  grid-row: 1 / span 2;
  display: flex;
  flex-direction: column;
  gap: 24px;
  padding: 24px 20px;
  border-left: 1px solid var(--sidebar-border);
  overflow-y: auto;
  min-height: 0;
}

.sidebar-header h1 {
  font-size: 22px;
  letter-spacing: 0.5px;
}

.subtitle {
  color: var(--text-muted);
  font-size: 13px;
  font-style: italic;
  margin-top: 4px;
}

.tool-section h2 {
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: 1.5px;
  color: var(--text-muted);
  margin-bottom: 12px;
  padding-bottom: 6px;
  border-bottom: 1px solid var(--sidebar-border);
}

.option-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 8px;
}

.option-grid.cols-3 {
  grid-template-columns: repeat(3, 1fr);
}

.option-btn {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 6px;
  padding: 8px 6px;
  background: var(--button-bg);
  border: 2px solid transparent;
  border-radius: 6px;
  color: var(--text);
  font: inherit;
  font-size: 13px;
  cursor: pointer;
  transition: background 0.15s, border-color 0.15s;
}

.option-btn:hover {
  background: var(--button-hover);
}

.option-btn.active {
  border-color: var(--accent);
}

.option-btn .icon {
  font-size: 22px;
  line-height: 1;
}

.option-btn .sub {
  font-size: 11px;
  color: var(--text-muted);
}

.terrain-swatch {
  width: 100%;
  height: 40px;
  border-radius: 4px;
  border: 1px solid rgba(0, 0, 0, 0.3);
}

.hint {
  margin-top: 10px;
  font-size: 12px;
  font-style: italic;
  color: var(--text-muted);
}

.text-button {
  margin-top: 10px;
  background: none;
  border: none;
  color: var(--text-muted);
  font: inherit;
  font-size: 12px;
  text-decoration: underline;
  cursor: pointer;
}

.text-button:hover {
  color: var(--text);
}

.slider-row {
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: center;
  gap: 10px;
  margin-top: 12px;
  font-size: 12px;
  color: var(--text-muted);
}

.slider-row input {
  accent-color: var(--accent);
}

.slider-row output {
  color: var(--text);
  min-width: 42px;
  text-align: right;
}

[hidden] {
  display: none !important;
}

.text-input {
  width: 100%;
  padding: 8px 10px;
  background: var(--button-bg);
  border: 1px solid var(--sidebar-border);
  border-radius: 6px;
  color: var(--text);
  font: inherit;
  font-size: 14px;
}

.text-input:focus {
  outline: none;
  border-color: var(--accent);
}

.button-row {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 10px;
}

.action-btn {
  flex: 1;
  padding: 7px 10px;
  background: var(--button-bg);
  border: 1px solid var(--sidebar-border);
  border-radius: 6px;
  color: var(--text);
  font: inherit;
  font-size: 13px;
  white-space: nowrap;
  cursor: pointer;
  transition: background 0.15s, border-color 0.15s;
}

.action-btn:hover {
  background: var(--button-hover);
  border-color: var(--accent);
}

.action-btn.danger:hover {
  border-color: #c0553f;
  color: #f0a898;
}

.selection-name {
  font-size: 15px;
}

/* ---------- Account e progetti online ---------- */

.account {
  margin-bottom: 12px;
  min-height: 40px;
}

.account-signed-in {
  display: flex;
  align-items: center;
  gap: 10px;
}

.avatar {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: var(--button-bg);
}

.account-info {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  min-width: 0;
}

.account-name {
  font-size: 14px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  max-width: 100%;
}

.account-info .text-button {
  margin-top: 0;
  padding: 4px 8px 4px 0;
}

.action-btn.primary {
  border-color: var(--accent);
}

.button-row.secondary {
  gap: 16px;
  margin-top: 4px;
}

.button-row.secondary .text-button {
  margin-top: 0;
}

.projects-dialog {
  margin: auto;
  width: min(520px, calc(100vw - 32px));
  max-height: 70vh;
  padding: 20px;
  background: var(--sidebar-bg);
  color: var(--text);
  border: 1px solid var(--sidebar-border);
  border-radius: 10px;
}

.projects-dialog::backdrop {
  background: rgba(0, 0, 0, 0.55);
}

.projects-dialog header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 14px;
}

.projects-dialog h2 {
  font-size: 18px;
}

.icon-button {
  background: none;
  border: none;
  color: var(--text-muted);
  font-size: 16px;
  cursor: pointer;
}

.icon-button:hover {
  color: var(--text);
}

.projects-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.project-row {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px 12px;
  background: var(--button-bg);
  border: 1px solid transparent;
  border-radius: 6px;
}

.project-row.current {
  border-color: var(--accent);
}

.project-row .project-info {
  flex: 1;
  min-width: 0;
}

.project-row .project-name {
  display: block;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.project-row .project-date {
  font-size: 12px;
  color: var(--text-muted);
}

.project-row .action-btn {
  flex: 0 0 auto;
}

/* ---------- Menu a tendina delle varianti ---------- */

.variant-menu {
  position: fixed;
  z-index: 10;
  display: flex;
  flex-direction: column;
  gap: 4px;
  padding: 6px;
  background: var(--sidebar-bg);
  border: 1px solid var(--sidebar-border);
  border-radius: 8px;
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.45);
}

.variant-item {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 6px 12px 6px 6px;
  background: none;
  border: 1px solid transparent;
  border-radius: 6px;
  color: var(--text);
  font: inherit;
  font-size: 14px;
  text-align: left;
  cursor: pointer;
}

.variant-item:hover {
  background: var(--button-hover);
}

.variant-item.active {
  border-color: var(--accent);
}

.variant-preview {
  display: block;
  border-radius: 3px;
}

.variant-select {
  margin-top: 8px;
}

.variant-menu {
  max-height: calc(100vh - 16px);
  overflow-y: auto;
}

.variant-menu-title {
  padding: 6px 6px 2px;
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 1.5px;
  color: var(--text-muted);
}

.variant-list {
  display: grid;
  grid-template-columns: 1fr;
  gap: 4px;
}

.variant-list.two-cols {
  grid-template-columns: repeat(2, 1fr);
}

.variant-item .shape-icon {
  width: 28px;
  font-size: 20px;
  text-align: center;
}