/* ===== RESET & BASE ===== */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  --color-primary: #4F46E5;
  --color-primary-dark: #3730A3;
  --color-primary-light: #EEF2FF;
  --color-success: #10B981;
  --color-danger: #EF4444;
  --color-text: #1F2937;
  --color-text-muted: #6B7280;
  --color-border: #E5E7EB;
  --color-bg: #F9FAFB;
  --color-white: #FFFFFF;
  --radius: 12px;
  --radius-sm: 8px;
  --shadow: 0 4px 16px rgba(0,0,0,.08);
  --transition: 200ms ease;
  --font: -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
}

html { font-size: 16px; -webkit-text-size-adjust: 100%; }
body {
  font-family: var(--font);
  background: var(--color-bg);
  color: var(--color-text);
  min-height: 100dvh;
  display: flex;
  flex-direction: column;
  align-items: center;
}

/* ===== LAYOUT ===== */
.app-shell {
  width: 100%;
  max-width: 480px;
  min-height: 100dvh;
  display: flex;
  flex-direction: column;
  background: var(--color-white);
  box-shadow: var(--shadow);
}

.screen { display: none; flex-direction: column; flex: 1; }
.screen.active { display: flex; }

/* ===== PROGRESS BAR ===== */
.progress-bar-wrap {
  height: 4px;
  background: var(--color-border);
  position: sticky;
  top: 0;
  z-index: 10;
}
.progress-bar-fill {
  height: 100%;
  background: var(--color-primary);
  transition: width 400ms ease;
  border-radius: 0 2px 2px 0;
}

/* ===== HEADER ===== */
.page-header {
  padding: 20px 20px 12px;
  border-bottom: 1px solid var(--color-border);
}
.page-header h1 {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--color-primary);
}
.page-header .subtitle {
  font-size: .85rem;
  color: var(--color-text-muted);
  margin-top: 2px;
}

/* ===== QUESTION HEADER ===== */
.question-header {
  padding: 20px 20px 8px;
}
.question-counter {
  font-size: .78rem;
  font-weight: 600;
  color: var(--color-primary);
  text-transform: uppercase;
  letter-spacing: .06em;
  margin-bottom: 8px;
}
.question-text {
  font-size: 1.05rem;
  font-weight: 600;
  line-height: 1.5;
  color: var(--color-text);
}

/* ===== QUESTION BODY ===== */
.question-body {
  padding: 16px 20px;
  flex: 1;
  overflow-y: auto;
}

/* ===== FOOTER ===== */
.question-footer {
  padding: 16px 20px;
  border-top: 1px solid var(--color-border);
  background: var(--color-white);
  position: sticky;
  bottom: 0;
}

/* ===== BUTTONS ===== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  font-size: 1rem;
  font-weight: 600;
  padding: 14px 24px;
  border-radius: var(--radius);
  border: none;
  cursor: pointer;
  transition: background var(--transition), opacity var(--transition), transform var(--transition);
  width: 100%;
}
.btn-primary {
  background: var(--color-primary);
  color: var(--color-white);
}
.btn-primary:hover:not(:disabled) { background: var(--color-primary-dark); }
.btn-primary:active:not(:disabled) { transform: scale(.98); }
.btn-primary:disabled { opacity: .4; cursor: not-allowed; }
.btn-secondary {
  background: var(--color-primary-light);
  color: var(--color-primary);
}

/* ===== IDENTIFICATION SCREEN ===== */
.ident-body {
  padding: 24px 20px;
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: 12px;
}
.ident-body p { color: var(--color-text-muted); font-size: .9rem; margin-bottom: 4px; }

.participant-list {
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.participant-btn {
  display: block;
  width: 100%;
  padding: 14px 16px;
  background: var(--color-white);
  border: 2px solid var(--color-border);
  border-radius: var(--radius-sm);
  font-size: 1rem;
  font-weight: 500;
  text-align: left;
  cursor: pointer;
  transition: border-color var(--transition), background var(--transition), color var(--transition);
  color: var(--color-text);
}
.participant-btn:hover { border-color: var(--color-primary); background: var(--color-primary-light); }
.participant-btn.selected {
  border-color: var(--color-primary);
  background: var(--color-primary);
  color: var(--color-white);
}
.participant-btn.completed {
  opacity: .45;
  pointer-events: none;
  cursor: default;
}
.participant-btn.completed::after {
  content: ' ✓';
  font-size: .8rem;
  opacity: .7;
}

/* ===== TIPO 1 — ESCOLHA ÚNICA ===== */
.choice-list {
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.choice-item {
  padding: 14px 16px;
  border: 2px solid var(--color-border);
  border-radius: var(--radius-sm);
  cursor: pointer;
  font-size: .95rem;
  font-weight: 500;
  transition: all var(--transition);
  background: var(--color-white);
  user-select: none;
}
.choice-item:hover { border-color: var(--color-primary); background: var(--color-primary-light); }
.choice-item.selected {
  border-color: var(--color-primary);
  background: var(--color-primary);
  color: var(--color-white);
}

/* ===== TIPO 2 — TABELA ===== */
.table-wrap { overflow-x: auto; }
.socio-table {
  width: 100%;
  border-collapse: collapse;
  font-size: .82rem;
  min-width: 280px;
}
.socio-table th {
  background: var(--color-primary-light);
  color: var(--color-primary-dark);
  font-weight: 600;
  padding: 8px 10px;
  border: 1px solid var(--color-border);
  text-align: center;
}
.socio-table td {
  padding: 6px;
  border: 1px solid var(--color-border);
  text-align: center;
  vertical-align: middle;
}
.socio-table td:first-child {
  font-weight: 600;
  text-align: left;
  padding: 6px 10px;
  background: var(--color-bg);
  color: var(--color-text-muted);
  font-size: .8rem;
}
.cell-select {
  width: 100%;
  padding: 6px 4px;
  border: 1.5px solid var(--color-border);
  border-radius: 6px;
  font-size: .82rem;
  background: var(--color-white);
  color: var(--color-text);
  cursor: pointer;
  transition: border-color var(--transition);
  min-width: 80px;
}
.cell-select:focus { outline: none; border-color: var(--color-primary); }
.cell-select.filled { border-color: var(--color-success); background: #F0FDF4; }

/* ===== TIPO 3 — SLIDER ===== */
.slider-wrap {
  padding: 12px 0 24px;
}
.slider-value-display {
  text-align: center;
  font-size: 2.5rem;
  font-weight: 700;
  color: var(--color-primary);
  margin-bottom: 16px;
  line-height: 1;
}
.slider-value-display .slider-unit { font-size: 1rem; color: var(--color-text-muted); }
input[type=range] {
  -webkit-appearance: none;
  width: 100%;
  height: 6px;
  border-radius: 3px;
  background: var(--color-border);
  outline: none;
  cursor: pointer;
}
input[type=range]::-webkit-slider-thumb {
  -webkit-appearance: none;
  width: 26px;
  height: 26px;
  border-radius: 50%;
  background: var(--color-primary);
  cursor: pointer;
  box-shadow: 0 2px 8px rgba(79,70,229,.35);
  transition: transform var(--transition);
}
input[type=range]::-webkit-slider-thumb:hover { transform: scale(1.15); }
.slider-labels {
  display: flex;
  justify-content: space-between;
  margin-top: 10px;
  font-size: .78rem;
  color: var(--color-text-muted);
}
.slider-touched .slider-value-display { color: var(--color-success); }

/* ===== TIPO 4 — LISTA DE PALAVRAS ===== */
.word-instruction {
  font-size: .85rem;
  color: var(--color-text-muted);
  margin-bottom: 14px;
}
.word-counter {
  font-size: .85rem;
  font-weight: 600;
  color: var(--color-primary);
  margin-bottom: 14px;
}
.word-grid {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}
.word-chip {
  padding: 9px 16px;
  border: 2px solid var(--color-border);
  border-radius: 999px;
  font-size: .9rem;
  font-weight: 500;
  cursor: pointer;
  transition: all var(--transition);
  background: var(--color-white);
  user-select: none;
}
.word-chip:hover { border-color: var(--color-primary); background: var(--color-primary-light); }
.word-chip.selected {
  background: var(--color-primary);
  border-color: var(--color-primary);
  color: var(--color-white);
}
.word-chip.disabled-chip { opacity: .4; pointer-events: none; }

/* ===== TIPO 5 — ASSOCIAÇÃO BIUNÍVOCA ===== */
.assoc-list {
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.assoc-row {
  display: flex;
  align-items: center;
  gap: 10px;
}
.assoc-name {
  flex: 1;
  font-size: .9rem;
  font-weight: 500;
  color: var(--color-text);
}
.assoc-select {
  flex: 1.2;
  padding: 10px 8px;
  border: 2px solid var(--color-border);
  border-radius: var(--radius-sm);
  font-size: .88rem;
  background: var(--color-white);
  color: var(--color-text);
  cursor: pointer;
  transition: border-color var(--transition);
}
.assoc-select:focus { outline: none; border-color: var(--color-primary); }
.assoc-select.filled { border-color: var(--color-success); }
.assoc-select.conflict { border-color: var(--color-danger); }

/* ===== TIPO 6 — TEXTO LIVRE ===== */
.free-text {
  width: 100%;
  min-height: 140px;
  padding: 14px;
  border: 2px solid var(--color-border);
  border-radius: var(--radius-sm);
  font-size: .95rem;
  font-family: var(--font);
  resize: vertical;
  transition: border-color var(--transition);
  color: var(--color-text);
  background: var(--color-white);
}
.free-text:focus { outline: none; border-color: var(--color-primary); }
.free-text.filled { border-color: var(--color-success); }
.char-count { font-size: .78rem; color: var(--color-text-muted); margin-top: 6px; text-align: right; }

/* ===== TIPO 7 — RANKING ===== */
.ranking-instruction {
  font-size: .85rem;
  color: var(--color-text-muted);
  margin-bottom: 14px;
}
.ranking-list {
  display: flex;
  flex-direction: column;
  gap: 8px;
  list-style: none;
}
.ranking-item {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 12px 14px;
  background: var(--color-white);
  border: 2px solid var(--color-border);
  border-radius: var(--radius-sm);
  cursor: grab;
  transition: border-color var(--transition), box-shadow var(--transition);
  user-select: none;
  touch-action: none;
}
.ranking-item.dragging {
  opacity: .5;
  cursor: grabbing;
}
.ranking-item.drag-over {
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(79,70,229,.15);
}
.rank-pos {
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background: var(--color-primary);
  color: var(--color-white);
  font-size: .85rem;
  font-weight: 700;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}
.rank-name { flex: 1; font-size: .95rem; font-weight: 500; }
.rank-arrows {
  display: flex;
  flex-direction: column;
  gap: 2px;
}
.rank-arrows button {
  background: none;
  border: 1px solid var(--color-border);
  border-radius: 4px;
  padding: 3px 7px;
  cursor: pointer;
  font-size: .75rem;
  color: var(--color-text-muted);
  transition: all var(--transition);
  line-height: 1;
}
.rank-arrows button:hover { background: var(--color-primary-light); border-color: var(--color-primary); color: var(--color-primary); }
.rank-arrows button:disabled { opacity: .3; pointer-events: none; }

/* ===== DONE SCREEN ===== */
.done-screen {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 40px 24px;
  text-align: center;
  gap: 16px;
}
.done-icon { font-size: 4rem; }
.done-screen h2 { font-size: 1.5rem; font-weight: 700; color: var(--color-primary); }
.done-screen p { color: var(--color-text-muted); font-size: .95rem; line-height: 1.6; }

/* ===== LOADING / ERROR ===== */
.loading-overlay {
  position: fixed;
  inset: 0;
  background: rgba(255,255,255,.75);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 100;
  backdrop-filter: blur(3px);
}
.spinner {
  width: 40px;
  height: 40px;
  border: 4px solid var(--color-border);
  border-top-color: var(--color-primary);
  border-radius: 50%;
  animation: spin .7s linear infinite;
}
@keyframes spin { to { transform: rotate(360deg); } }

.toast {
  position: fixed;
  bottom: 24px;
  left: 50%;
  transform: translateX(-50%) translateY(80px);
  background: var(--color-text);
  color: var(--color-white);
  padding: 12px 20px;
  border-radius: var(--radius-sm);
  font-size: .9rem;
  font-weight: 500;
  z-index: 200;
  transition: transform 300ms ease;
  white-space: nowrap;
  max-width: 90vw;
  text-align: center;
}
.toast.show { transform: translateX(-50%) translateY(0); }
.toast.error { background: var(--color-danger); }
.toast.success { background: var(--color-success); }

/* ===== SEARCH ===== */
.search-input {
  width: 100%;
  padding: 11px 14px;
  border: 2px solid var(--color-border);
  border-radius: var(--radius-sm);
  font-size: .95rem;
  margin-bottom: 12px;
  transition: border-color var(--transition);
}
.search-input:focus { outline: none; border-color: var(--color-primary); }

/* ===== UTILITIES ===== */
.hidden { display: none !important; }
.mt-8 { margin-top: 8px; }
.mt-12 { margin-top: 12px; }