@import url('variables.css');
@import url('mobile.css');

/* ── Form Elements ── */
.form-group {
  margin-bottom: 1.25rem;
}

.form-group:last-child {
  margin-bottom: 0;
}

.form-label {
  display: block;
  font-size: 0.875rem;
  font-weight: 600;
  margin-bottom: 0.375rem;
  color: var(--color-text);
}

.form-hint {
  font-size: 0.8125rem;
  color: var(--color-text-muted);
  margin-top: 0.25rem;
}

.form-input,
.form-select,
.form-textarea {
  display: block;
  width: 100%;
  max-width: 100%;
  padding: 0.75rem 0.875rem;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  background: var(--color-bg);
  font-size: 1rem;
  min-height: var(--input-min-height);
  transition: border-color var(--transition), box-shadow var(--transition);
}

.form-input:focus,
.form-select:focus,
.form-textarea:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px var(--color-primary-light);
}

.form-textarea {
  resize: vertical;
  min-height: 8rem;
  line-height: 1.6;
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
  width: 100%;
}

/* ── Radio / Toggle Group ── */
.option-group {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.option-btn {
  padding: 0.5rem 1rem;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  background: var(--color-bg);
  font-size: 0.875rem;
  font-weight: 500;
  cursor: pointer;
  transition: all var(--transition);
}

.option-btn:hover {
  border-color: var(--color-primary);
  color: var(--color-primary);
}

.option-btn.is-active {
  background: var(--color-primary);
  border-color: var(--color-primary);
  color: #fff;
}

.option-btn input {
  position: absolute;
  opacity: 0;
  pointer-events: none;
}

/* ── Buttons ── */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.375rem;
  padding: 0.75rem 1.25rem;
  border: none;
  border-radius: var(--radius-sm);
  font-size: 0.9375rem;
  font-weight: 600;
  cursor: pointer;
  min-height: var(--btn-min-height);
  max-width: 100%;
  box-sizing: border-box;
  transition: background var(--transition), transform var(--transition);
}

.btn:active {
  transform: scale(0.98);
}

.btn-primary {
  background: var(--color-primary);
  color: #fff;
}

.btn-primary:hover {
  background: var(--color-primary-hover);
}

.btn-secondary {
  background: var(--color-bg-muted);
  color: var(--color-text);
  border: 1px solid var(--color-border);
}

.btn-secondary:hover {
  background: var(--color-border);
}

.btn-block {
  width: 100%;
}

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

/* ── Result Display ── */
.result-box {
  margin-top: 1.5rem;
  padding: 1.25rem;
  background: var(--color-bg-subtle);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
}

.result-box.is-success {
  background: var(--color-success-bg);
  border-color: #bbf7d0;
}

.result-box.is-warning {
  background: var(--color-warning-bg);
  border-color: #fde68a;
}

.result-box.is-danger {
  background: var(--color-danger-bg);
  border-color: #fecaca;
}

.result-label {
  font-size: 0.8125rem;
  font-weight: 600;
  color: var(--color-text-secondary);
  text-transform: uppercase;
  letter-spacing: 0.04em;
  margin-bottom: 0.25rem;
}

.result-value {
  font-size: 1.75rem;
  font-weight: 800;
  letter-spacing: -0.02em;
  line-height: 1.2;
}

.result-value--sm {
  font-size: 1.25rem;
}

.result-sub {
  font-size: 0.9375rem;
  color: var(--color-text-secondary);
  margin-top: 0.5rem;
}

.result-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 140px), 1fr));
  gap: 1rem;
  margin-top: 1rem;
  width: 100%;
}

.result-item {
  padding: 0.875rem;
  background: var(--color-bg);
  border-radius: var(--radius-sm);
  border: 1px solid var(--color-border);
}

.result-item-label {
  font-size: 0.75rem;
  color: var(--color-text-muted);
  margin-bottom: 0.125rem;
}

.result-item-value {
  font-size: 1.125rem;
  font-weight: 700;
}

/* ── Counter (X char count) ── */
.char-counter {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-top: 0.5rem;
  font-size: 0.875rem;
  color: var(--color-text-secondary);
}

.char-counter.is-over {
  color: var(--color-danger);
  font-weight: 600;
}

.char-stats {
  display: flex;
  gap: 1rem;
  margin-top: 0.75rem;
  font-size: 0.875rem;
  color: var(--color-text-secondary);
}

/* ── QR Code ── */
.qr-output {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 1rem;
  margin-top: 1.5rem;
}

.qr-canvas-wrap {
  padding: 1rem;
  background: #fff;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-sm);
  max-width: 100%;
  box-sizing: border-box;
}

.qr-canvas-wrap canvas,
.qr-canvas-wrap img {
  display: block;
  max-width: 100%;
  height: auto;
}

.qr-actions {
  display: flex;
  gap: 0.75rem;
  flex-wrap: wrap;
  justify-content: center;
}

/* ── Divider ── */
.divider {
  height: 1px;
  background: var(--color-border);
  margin: 1.5rem 0;
}

/* ── Tab Switch ── */
.tab-group {
  display: flex;
  border-bottom: 1px solid var(--color-border);
  margin-bottom: 1.25rem;
}

.tab-btn {
  padding: 0.625rem 1rem;
  border: none;
  background: none;
  font-size: 0.9375rem;
  font-weight: 500;
  color: var(--color-text-secondary);
  cursor: pointer;
  border-bottom: 2px solid transparent;
  margin-bottom: -1px;
  transition: color var(--transition), border-color var(--transition);
}

.tab-btn:hover {
  color: var(--color-primary);
}

.tab-btn.is-active {
  color: var(--color-primary);
  border-bottom-color: var(--color-primary);
  font-weight: 600;
}

.tab-panel {
  display: none;
}

.tab-panel.is-active {
  display: block;
}

/* ── Copy Button ── */
.copy-btn {
  position: absolute;
  top: 0.75rem;
  right: 0.75rem;
  width: 36px;
  height: 36px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  background: var(--color-bg);
  cursor: pointer;
  font-size: 1rem;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: background var(--transition);
}

.copy-btn:hover {
  background: var(--color-bg-muted);
}

/* ── Loading Spinner ── */
.loading-spinner {
  width: 40px;
  height: 40px;
  border: 3px solid var(--color-border);
  border-top-color: var(--color-primary);
  border-radius: 50%;
  animation: spin 0.7s linear infinite;
  margin: 2rem auto;
}

@keyframes spin {
  to { transform: rotate(360deg); }
}

/* ── Tag list ── */
.tag-list {
  display: flex;
  flex-wrap: wrap;
  gap: 0.375rem;
  margin-top: 0.75rem;
}

.tag-item {
  font-size: 0.8125rem;
  padding: 0.25rem 0.625rem;
  background: var(--color-primary-light);
  color: var(--color-primary);
  border-radius: 999px;
}

/* ── Output text ── */
.output-text {
  font-family: var(--font-mono);
  font-size: 0.875rem;
  word-break: break-all;
  padding: 1rem;
  background: var(--color-bg-subtle);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  margin-top: 0.75rem;
}