/* =====================================================
 * CALCULATOR FORMS - BLUEPRINT NOIR
 * Specific styling for calculation inputs
 * Matches the technical/dark aesthetic
 * ===================================================== */

/* Form Group Container */
.form-group {
  margin-bottom: 1.5rem;
  position: relative;
}

/* Form Labels */
.form-label {
  display: block;
  margin-bottom: 0.5rem;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--text-secondary);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

/* Input Group (wrapper for input + suffix) */
.input-group {
  position: relative;
  display: flex;
  align-items: center;
}

/* Form Inputs */
.form-input {
  width: 100%;
  padding: 0.75rem 1rem;
  padding-right: 3.5rem; /* Space for suffix */
  
  background-color: var(--bg-input);
  color: var(--text-primary);
  border: 1px solid var(--border-tech);
  border-radius: var(--radius-sm);
  
  font-family: var(--font-mono);
  font-size: 1rem; /* Larger font for calculations */
  font-weight: 500;
  
  transition: all 0.2s ease-in-out;
  outline: none;
}

/* Placeholder styling */
.form-input::placeholder {
  color: var(--text-muted);
  opacity: 0.5;
}

/* Input Hover State */
.form-input:hover:not(:disabled):not(:focus) {
  border-color: var(--accent-copper-dim);
  background-color: var(--bg-card);
}

/* Input Focus State */
.form-input:focus {
  border-color: var(--accent-copper);
  background-color: var(--bg-card);
  box-shadow: 0 0 15px var(--accent-copper-glow);
}

/* Input with validation error */
.form-input.error {
  border-color: var(--error);
  background-color: rgba(239, 68, 68, 0.05);
  color: #FCA5A5;
}

.form-input.error:focus {
  box-shadow: 0 0 10px rgba(239, 68, 68, 0.2);
}

/* Input Suffix (zł or %) */
.input-suffix {
  position: absolute;
  right: 1rem;
  top: 50%;
  transform: translateY(-50%);
  
  font-family: var(--font-mono);
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--accent-copper);
  
  pointer-events: none;
  user-select: none;
}

/* Form Select */
.form-select {
  width: 100%;
  padding: 0.75rem 1rem;
  
  background-color: var(--bg-input);
  color: var(--text-primary);
  border: 1px solid var(--border-tech);
  border-radius: var(--radius-sm);
  
  font-family: var(--font-mono);
  font-size: 0.95rem;
  
  cursor: pointer;
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' fill='none' viewBox='0 0 24 24' stroke='%23D4A574'%3E%3Cpath stroke-linecap='round' stroke-linejoin='round' stroke-width='2' d='M19 9l-7 7-7-7'%3E%3C/path%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 1rem center;
  background-size: 1rem;
  
  transition: all 0.2s ease-in-out;
}

.form-select:focus {
  border-color: var(--accent-copper);
  background-color: var(--bg-card);
  box-shadow: 0 0 15px var(--accent-copper-glow);
  outline: none;
}

/* Checkbox styling matches Blueprint theme */
.form-checkbox {
  appearance: none;
  width: 1.25rem;
  height: 1.25rem;
  
  background-color: var(--bg-input);
  border: 1px solid var(--border-tech);
  border-radius: 2px; /* Sharp technical corners */
  
  margin-right: 0.75rem;
  cursor: pointer;
  position: relative;
  transition: all 0.2s ease;
}

.form-checkbox:checked {
  background-color: var(--accent-copper);
  border-color: var(--accent-copper);
  box-shadow: 0 0 10px var(--accent-copper-glow);
}

/* Checkmark icon */
.form-checkbox:checked::after {
  content: '';
  position: absolute;
  left: 5px; top: 1px;
  width: 5px; height: 10px;
  border: solid #0B0E11;
  border-width: 0 2px 2px 0;
  transform: rotate(45deg);
}

.form-checkbox:focus {
  outline: none;
  border-color: var(--accent-copper);
}

/* Inline Label (for checkboxes) */
.form-label-inline {
  display: inline-block;
  font-family: var(--font-body);
  font-size: 0.95rem;
  color: var(--text-primary);
  cursor: pointer;
  vertical-align: middle;
}

/* Validation Error Message */
.form-error {
  margin-top: 0.5rem;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--error);
  display: flex;
  align-items: center;
  gap: 0.4rem;
}

.form-error::before {
  content: '>';
  font-weight: bold;
}

/* Disabled State */
.form-input:disabled,
.form-select:disabled {
  background-color: var(--bg-depth);
  color: var(--text-muted);
  cursor: not-allowed;
  border-style: dashed;
  opacity: 0.7;
}

/* Read-only State (for calculated results) */
.form-input[readonly] {
  background-color: rgba(212, 165, 116, 0.05);
  border-color: transparent;
  font-weight: 700;
  color: var(--accent-copper);
  text-align: right;
}

/* Mobile Responsive Adjustments */
@media (max-width: 640px) {
  .form-input,
  .form-select {
    font-size: 16px; /* Prevent iOS zoom */
    padding: 0.875rem 1rem;
  }

  .form-group {
    margin-bottom: 1.25rem;
  }
  
  .input-suffix {
    font-size: 0.8rem;
  }
}