:root {
  color-scheme: light;
  --bg: #f7f7f7;
  --panel: #f5f5f5;
  --shadow-light: #ffffff;
  --shadow-dark: #d8d8d8;
  --text: #2c3138;
  --muted: #6e7681;
  --accent: #86a788;
  --accent-strong: #6f9272;
  --border: rgba(255, 255, 255, 0.8);
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100vh;
  font-family: "Nunito", sans-serif;
  background: radial-gradient(circle at top, #ffffff 0%, var(--bg) 50%, #ececec 100%);
  color: var(--text);
}

button,
input {
  font: inherit;
}

.app-shell {
  width: min(1100px, calc(100% - 20px));
  margin: 0 auto;
  padding: 10px 0 16px;
}

.settings-panel,
.workspace-card,
.result-card {
  background: var(--panel);
  border-radius: 28px;
  border: 1px solid var(--border);
  box-shadow:
    12px 12px 24px var(--shadow-dark),
    -12px -12px 24px var(--shadow-light);
}

h1,
h2,
h3,
p {
  margin: 0;
}

h1 {
  font-size: clamp(1.35rem, 2vw, 2rem);
  line-height: 1.1;
}

.settings-panel {
  margin-top: 10px;
  padding: 12px;
  display: grid;
  grid-template-columns: 1fr 1fr auto;
  gap: 10px;
  align-items: end;
}

.hidden {
  display: none;
}

.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

.field {
  display: grid;
  gap: 6px;
  color: var(--muted);
  font-size: 0.92rem;
}

.field span {
  font-weight: 700;
}

.toggle-field {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  padding: 10px 12px;
  border-radius: 14px;
  color: var(--muted);
  background: var(--panel);
  box-shadow:
    inset 6px 6px 12px var(--shadow-dark),
    inset -6px -6px 12px var(--shadow-light);
}

.toggle-field span {
  font-weight: 700;
}

.toggle-field input {
  width: 20px;
  height: 20px;
}

.field input {
  width: 100%;
  padding: 10px 12px;
  border: none;
  border-radius: 14px;
  color: var(--text);
  background: var(--panel);
  box-shadow:
    inset 6px 6px 12px var(--shadow-dark),
    inset -6px -6px 12px var(--shadow-light);
}

.workspace-card,
.result-card {
  margin-top: 10px;
  padding: 14px;
}

.canvas-wrap {
  background: #ffffff;
  border-radius: 18px;
  padding: 10px;
  box-shadow:
    inset 10px 10px 20px #e2e2e2,
    inset -10px -10px 20px #ffffff;
}

canvas {
  display: block;
  width: 100%;
  height: min(52vh, 540px);
  background: #ffffff;
  border-radius: 14px;
  cursor: crosshair;
  touch-action: none;
}

.toolbar {
  margin-top: 10px;
  display: flex;
  justify-content: space-between;
  gap: 10px;
  align-items: center;
  flex-wrap: wrap;
}

.toolbar-title {
  flex: 1 1 260px;
  text-align: center;
  font-size: clamp(1.1rem, 1.8vw, 1.5rem);
}

.toolbar-group {
  display: flex;
  gap: 10px;
  align-items: center;
  flex-wrap: wrap;
}

.compact {
  min-width: 140px;
}

.actions {
  margin-left: auto;
}

.icon-button,
.primary-button,
.secondary-button {
  border: none;
  border-radius: 16px;
  padding: 10px 14px;
  cursor: pointer;
  color: var(--text);
  background: var(--panel);
  box-shadow:
    8px 8px 16px var(--shadow-dark),
    -8px -8px 16px var(--shadow-light);
  transition: transform 120ms ease, box-shadow 120ms ease, background 120ms ease;
}

.tool-button {
  min-width: 46px;
  min-height: 46px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 1.15rem;
  font-weight: 800;
}

.primary-button {
  color: #ffffff;
  background: linear-gradient(135deg, var(--accent), var(--accent-strong));
  box-shadow:
    10px 10px 20px #cfd4cf,
    -10px -10px 20px #ffffff;
}

.danger-button {
  color: #ffffff;
  background: linear-gradient(135deg, #d96b6b, #b94a4a);
  box-shadow:
    10px 10px 20px #d9c3c3,
    -10px -10px 20px #ffffff;
}

.icon-button:hover,
.primary-button:hover,
.secondary-button:hover {
  transform: translateY(-1px);
}

.icon-button:active,
.primary-button:active,
.secondary-button:active {
  transform: translateY(1px);
  box-shadow:
    inset 5px 5px 10px var(--shadow-dark),
    inset -5px -5px 10px var(--shadow-light);
}

.result-header {
  display: grid;
  gap: 4px;
}

#statusText,
.helper-text {
  color: var(--muted);
}

.results-list {
  margin-top: 12px;
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.placeholder-text,
.chips-placeholder {
  color: var(--muted);
}

.result-chip,
.word-chip {
  border: none;
  border-radius: 999px;
  padding: 8px 14px;
  background: var(--panel);
  color: var(--text);
  cursor: pointer;
  box-shadow:
    8px 8px 16px var(--shadow-dark),
    -8px -8px 16px var(--shadow-light);
}

.result-chip {
  font-size: 0.98rem;
  font-weight: 700;
}

.bottom-grid {
  display: grid;
  grid-template-columns: minmax(260px, 0.8fr) minmax(0, 1.2fr);
  gap: 10px;
  align-items: start;
}

.result-chip.active {
  background: linear-gradient(135deg, #e8f0e8, #fdfdfd);
}

.details-card {
  display: grid;
  gap: 12px;
}

.word-groups {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 10px;
}

.word-group {
  padding: 12px;
  border-radius: 18px;
  background: var(--panel);
  box-shadow:
    inset 8px 8px 16px var(--shadow-dark),
    inset -8px -8px 16px var(--shadow-light);
}

.word-group h3 {
  margin-bottom: 10px;
  font-size: 0.98rem;
}

.chips-wrap {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.word-chip {
  font-size: 0.92rem;
}

.word-chip:disabled {
  cursor: default;
  opacity: 0.78;
}

@media (max-width: 980px) {
  .bottom-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 860px) {
  .settings-panel {
    grid-template-columns: 1fr;
  }

  .toolbar {
    flex-direction: column;
    align-items: stretch;
  }

  .toolbar-title {
    text-align: left;
    flex: 1 1 auto;
  }

  .toolbar-group,
  .actions {
    width: 100%;
  }

  .actions button {
    flex: 1;
  }

  .word-groups {
    grid-template-columns: 1fr;
  }

  canvas {
    height: min(44vh, 380px);
  }
}

@media (max-width: 560px) {
  .app-shell {
    width: min(100%, calc(100% - 12px));
    padding: 6px 0 12px;
  }

  .workspace-card,
  .result-card,
  .settings-panel {
    border-radius: 20px;
  }
}