/* ==========================================================================
   forms.css — Form controls, layouts, validation states
   ========================================================================== */


/* --------------------------------------------------------------------------
   Form group & label
   -------------------------------------------------------------------------- */

.form-group {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
  margin-bottom: var(--space-6);
}

.form-label {
  font-size: var(--text-sm);
  font-weight: 600;
  color: var(--color-navy);
  letter-spacing: 0.02em;
}

.form-label.required::after {
  content: " *";
  color: var(--color-danger);
}

.form-hint {
  font-size: var(--text-xs);
  color: var(--color-text-muted);
  line-height: 1.5;
}


/* --------------------------------------------------------------------------
   Inputs, selects, textarea
   -------------------------------------------------------------------------- */

.form-input,
.form-select,
.form-textarea {
  width: 100%;
  padding: var(--space-3) var(--space-4);
  border: 1px solid var(--color-border-strong);
  border-radius: var(--radius-md);
  font-family: var(--font-body);
  font-size: var(--text-base);
  color: var(--color-text);
  background: var(--color-white);
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
  line-height: 1.5;
  -webkit-appearance: none;
  appearance: none;
}

.form-input::placeholder,
.form-textarea::placeholder {
  color: #aab0b8;
}

.form-input:focus,
.form-select:focus,
.form-textarea:focus {
  outline: none;
  border-color: var(--color-steel);
  box-shadow: 0 0 0 3px rgba(51, 101, 138, 0.12);
}

.form-input:disabled,
.form-select:disabled,
.form-textarea:disabled {
  background: var(--color-cream);
  color: var(--color-text-muted);
  cursor: not-allowed;
  opacity: 0.7;
}

.form-textarea {
  min-height: 120px;
  resize: vertical;
}

/* Custom select arrow */
.form-select {
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' viewBox='0 0 24 24' fill='none' stroke='%235a6370' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='6 9 12 15 18 9'%3E%3C/polyline%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right var(--space-3) center;
  padding-right: var(--space-10);
}


/* --------------------------------------------------------------------------
   Validation states
   -------------------------------------------------------------------------- */

.form-input--error,
.form-select--error,
.form-textarea--error {
  border-color: var(--color-danger);
}

.form-input--error:focus,
.form-select--error:focus,
.form-textarea--error:focus {
  box-shadow: 0 0 0 3px rgba(185, 64, 64, 0.12);
}

.form-input--success,
.form-select--success {
  border-color: var(--color-success);
}

.form-error-msg {
  font-size: var(--text-xs);
  color: var(--color-danger);
  font-weight: 500;
  display: flex;
  align-items: center;
  gap: var(--space-1);
}

.form-success-msg {
  font-size: var(--text-xs);
  color: var(--color-success);
  font-weight: 500;
}


/* --------------------------------------------------------------------------
   Checkbox & Radio
   -------------------------------------------------------------------------- */

.form-check {
  display: flex;
  align-items: flex-start;
  gap: var(--space-3);
  cursor: pointer;
  margin-bottom: var(--space-3);
}

.form-check input[type="checkbox"],
.form-check input[type="radio"] {
  width: 18px;
  height: 18px;
  border: 2px solid var(--color-border-strong);
  border-radius: var(--radius-sm);
  background: var(--color-white);
  cursor: pointer;
  flex-shrink: 0;
  margin-top: 2px;
  -webkit-appearance: none;
  appearance: none;
  transition: border-color var(--transition-fast), background var(--transition-fast);
  display: flex;
  align-items: center;
  justify-content: center;
}

.form-check input[type="radio"] {
  border-radius: var(--radius-full);
}

.form-check input[type="checkbox"]:checked {
  background: var(--color-steel);
  border-color: var(--color-steel);
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 24 24' fill='none' stroke='white' stroke-width='3' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='20 6 9 17 4 12'%3E%3C/polyline%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: center;
}

.form-check input[type="radio"]:checked {
  border-color: var(--color-steel);
  background: radial-gradient(circle, var(--color-steel) 50%, transparent 50%);
}

.form-check__label {
  font-size: var(--text-sm);
  color: var(--color-text);
  line-height: 1.5;
}


/* --------------------------------------------------------------------------
   File upload
   -------------------------------------------------------------------------- */

.form-file-drop {
  border: 2px dashed var(--color-border-strong);
  border-radius: var(--radius-lg);
  padding: var(--space-10) var(--space-8);
  text-align: center;
  cursor: pointer;
  transition: border-color var(--transition-fast), background var(--transition-fast);
  background: var(--color-white);
}

.form-file-drop:hover,
.form-file-drop.dragover {
  border-color: var(--color-steel);
  background: rgba(51, 101, 138, 0.03);
}

.form-file-drop__icon {
  width: 40px;
  height: 40px;
  color: var(--color-text-muted);
  margin: 0 auto var(--space-3);
}

.form-file-drop__text {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
}

.form-file-drop__text strong {
  color: var(--color-steel);
}


/* --------------------------------------------------------------------------
   Form layouts
   -------------------------------------------------------------------------- */

.form-row {
  display: grid;
  grid-template-columns: 1fr;
  gap: 0 var(--space-6);
}

@media (min-width: 640px) {
  .form-row--2col { grid-template-columns: 1fr 1fr; }
  .form-row--3col { grid-template-columns: repeat(3, 1fr); }
}

.form-actions {
  display: flex;
  gap: var(--space-3);
  align-items: center;
  flex-wrap: wrap;
  margin-top: var(--space-8);
  padding-top: var(--space-6);
  border-top: 1px solid var(--color-border);
}

.form-actions--right {
  justify-content: flex-end;
}

.form-section {
  margin-bottom: var(--space-10);
  padding-bottom: var(--space-10);
  border-bottom: 1px solid var(--color-border);
}

.form-section:last-of-type {
  border-bottom: none;
}

.form-section__title {
  font-family: var(--font-display);
  font-size: var(--text-xl);
  color: var(--color-navy);
  margin-bottom: var(--space-2);
}

.form-section__desc {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  margin-bottom: var(--space-6);
  max-width: none;
}


/* --------------------------------------------------------------------------
   Buttons (app-specific sizes + states)
   -------------------------------------------------------------------------- */

.btn-primary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  padding: var(--space-3) var(--space-6);
  background: var(--color-olive);
  color: var(--color-cream);
  font-family: var(--font-body);
  font-size: var(--text-base);
  font-weight: 600;
  letter-spacing: 0.02em;
  border-radius: var(--radius-md);
  border: 2px solid var(--color-olive);
  transition: background var(--transition-base), border-color var(--transition-base),
              transform var(--transition-fast), box-shadow var(--transition-base);
  white-space: nowrap;
  cursor: pointer;
}

.btn-primary:hover {
  background: #364530;
  border-color: #364530;
  color: var(--color-cream);
  transform: translateY(-1px);
  box-shadow: var(--shadow-md);
}

.btn-primary:disabled {
  opacity: 0.5;
  cursor: not-allowed;
  transform: none;
  box-shadow: none;
}

.btn-secondary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  padding: var(--space-3) var(--space-6);
  background: transparent;
  color: var(--color-navy);
  font-family: var(--font-body);
  font-size: var(--text-base);
  font-weight: 600;
  letter-spacing: 0.02em;
  border-radius: var(--radius-md);
  border: 2px solid var(--color-navy);
  transition: background var(--transition-base), color var(--transition-base),
              transform var(--transition-fast), box-shadow var(--transition-base);
  white-space: nowrap;
  cursor: pointer;
}

.btn-secondary:hover {
  background: var(--color-navy);
  color: var(--color-cream);
  transform: translateY(-1px);
  box-shadow: var(--shadow-md);
}

.btn-danger {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  padding: var(--space-3) var(--space-6);
  background: var(--color-danger);
  color: white;
  font-family: var(--font-body);
  font-size: var(--text-base);
  font-weight: 600;
  border-radius: var(--radius-md);
  border: 2px solid var(--color-danger);
  cursor: pointer;
  transition: background var(--transition-base), transform var(--transition-fast);
  white-space: nowrap;
}

.btn-danger:hover {
  background: #9a3535;
  border-color: #9a3535;
  transform: translateY(-1px);
}

.btn-ghost {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  padding: var(--space-2) var(--space-4);
  background: transparent;
  color: var(--color-text-muted);
  font-family: var(--font-body);
  font-size: var(--text-sm);
  font-weight: 500;
  border-radius: var(--radius-md);
  border: none;
  cursor: pointer;
  transition: background var(--transition-fast), color var(--transition-fast);
  white-space: nowrap;
}

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

.btn--sm {
  padding: var(--space-2) var(--space-4);
  font-size: var(--text-sm);
}

.btn--lg {
  padding: var(--space-4) var(--space-8);
  font-size: var(--text-md);
}

.btn--loading {
  pointer-events: none;
  opacity: 0.7;
}