/* ==========================================================================
   DENTALINS — FORM SYSTEM (forms.css)
   Input, textarea, select, checkbox, radio, label, error, form layout.
   BEM: .form, .form-group, .form-input, .form-label, .form-error vb.
   ========================================================================== */

/* ======================================================================
   1. FORM LAYOUT
   ====================================================================== */

.form {
  display: flex;
  flex-direction: column;
  gap: var(--space-5);
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: var(--space-1);
}

/* İki form-group yan yana (inline) */
.form-row {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-5);
}

@media (min-width: 768px) {
  .form-row {
    grid-template-columns: repeat(2, 1fr);
    gap: var(--space-6);
  }
}

/* 3 kolonlu form row */
.form-row--3 {
  grid-template-columns: 1fr;
}

@media (min-width: 768px) {
  .form-row--3 {
    grid-template-columns: repeat(3, 1fr);
  }
}


/* ======================================================================
   2. LABEL
   ====================================================================== */

.form-label {
  display: block;
  font-size: var(--text-sm);
  font-weight: var(--weight-medium);
  color: var(--color-text-secondary);
  margin-bottom: var(--space-1);
}

/* Zorunlu alan yıldızı */
.form-label--required::after {
  content: ' *';
  color: var(--color-error);
  font-weight: var(--weight-bold);
}

/* Opsiyonel alan notu */
.form-label__optional {
  font-size: var(--text-xs);
  font-weight: var(--weight-regular);
  color: var(--color-text-tertiary);
  margin-left: var(--space-1);
}


/* ======================================================================
   3. TEXT INPUT & TEXTAREA
   ====================================================================== */

.form-input {
  /* Layout */
  display: block;
  width: 100%;
  padding: var(--space-3) var(--space-4);
  min-height: 44px;  /* Touch target */

  /* Typography */
  font-family: var(--font-primary);
  font-size: var(--text-base);
  font-weight: var(--weight-regular);
  line-height: var(--leading-normal);
  color: var(--color-text-primary);

  /* Appearance */
  background-color: var(--color-neutral-0);
  border: 1.5px solid var(--color-border);
  border-radius: var(--radius-md);

  /* Transition */
  transition:
    border-color var(--transition-fast),
    box-shadow var(--transition-fast),
    background-color var(--transition-fast);
}

/* Placeholder */
.form-input::placeholder {
  color: var(--color-text-tertiary);
  font-weight: var(--weight-regular);
}

/* Focus */
.form-input:focus {
  outline: none;
  border-color: var(--color-primary-400);
  box-shadow: 0 0 0 3px var(--color-primary-50);
  background-color: var(--color-neutral-0);
}

/* Hover (not focused, not disabled) */
.form-input:hover:not(:focus):not(:disabled) {
  border-color: var(--color-border-hover);
}

/* Disabled */
.form-input:disabled {
  background-color: var(--color-neutral-100);
  color: var(--color-text-tertiary);
  cursor: not-allowed;
  opacity: 0.7;
}

/* Readonly */
.form-input:read-only {
  background-color: var(--color-neutral-50);
  cursor: default;
}

/* Error state */
.form-input--error {
  border-color: var(--color-error);
}

.form-input--error:focus {
  border-color: var(--color-error);
  box-shadow: 0 0 0 3px var(--color-error-light);
}

/* Success state */
.form-input--success {
  border-color: var(--color-success);
}

.form-input--success:focus {
  border-color: var(--color-success);
  box-shadow: 0 0 0 3px var(--color-success-light);
}


/* ======================================================================
   4. TEXTAREA
   ====================================================================== */

textarea.form-input {
  min-height: 120px;
  resize: vertical;
  line-height: var(--leading-relaxed);
}

textarea.form-input--tall {
  min-height: 200px;
}


/* ======================================================================
   5. SELECT
   ====================================================================== */

.form-select {
  /* Base input stillerini miras al */
  display: block;
  width: 100%;
  padding: var(--space-3) var(--space-10) var(--space-3) var(--space-4);
  min-height: 44px;

  font-family: var(--font-primary);
  font-size: var(--text-base);
  font-weight: var(--weight-regular);
  line-height: var(--leading-normal);
  color: var(--color-text-primary);

  background-color: var(--color-neutral-0);
  border: 1.5px solid var(--color-border);
  border-radius: var(--radius-md);

  /* Custom dropdown arrow */
  appearance: none;
  -webkit-appearance: none;
  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='%23868e96' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='6 9 12 15 18 9'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right var(--space-3) center;
  background-size: 16px;

  cursor: pointer;
  transition:
    border-color var(--transition-fast),
    box-shadow var(--transition-fast);
}

.form-select:focus {
  outline: none;
  border-color: var(--color-primary-400);
  box-shadow: 0 0 0 3px var(--color-primary-50);
}

.form-select:hover:not(:focus):not(:disabled) {
  border-color: var(--color-border-hover);
}

.form-select:disabled {
  background-color: var(--color-neutral-100);
  color: var(--color-text-tertiary);
  cursor: not-allowed;
  opacity: 0.7;
}

/* Select placeholder (ilk seçenek disabled) */
.form-select option[value=''] {
  color: var(--color-text-tertiary);
}

/* Error state */
.form-select--error {
  border-color: var(--color-error);
}

.form-select--error:focus {
  border-color: var(--color-error);
  box-shadow: 0 0 0 3px var(--color-error-light);
}


/* ======================================================================
   6. CHECKBOX & RADIO
   Custom styled checkbox ve radio buton.
   ====================================================================== */

.form-check {
  display: flex;
  align-items: flex-start;
  gap: var(--space-2);
  cursor: pointer;
  position: relative;
}

.form-check__input {
  /* Gizle ama erişilebilir tut */
  position: absolute;
  opacity: 0;
  width: 0;
  height: 0;
}

.form-check__box {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 20px;
  height: 20px;
  min-width: 20px;
  margin-top: 2px; /* Label ile hizalama */
  border: 1.5px solid var(--color-neutral-400);
  border-radius: var(--radius-sm);
  background-color: var(--color-neutral-0);
  transition:
    background-color var(--transition-fast),
    border-color var(--transition-fast),
    box-shadow var(--transition-fast);
}

/* Radio — yuvarlak köşe */
.form-check--radio .form-check__box {
  border-radius: 50%;
}

/* Checkbox check icon */
.form-check__box::after {
  content: '';
  display: none;
  width: 6px;
  height: 10px;
  border: solid var(--color-text-inverse);
  border-width: 0 2px 2px 0;
  transform: rotate(45deg);
  margin-top: -2px;
}

/* Radio dot */
.form-check--radio .form-check__box::after {
  width: 8px;
  height: 8px;
  border: none;
  border-radius: 50%;
  background-color: var(--color-text-inverse);
  transform: none;
  margin-top: 0;
}

/* Checked state */
.form-check__input:checked + .form-check__box {
  background-color: var(--color-primary-500);
  border-color: var(--color-primary-500);
}

.form-check__input:checked + .form-check__box::after {
  display: block;
}

/* Focus state */
.form-check__input:focus-visible + .form-check__box {
  box-shadow: 0 0 0 3px var(--color-primary-100);
  border-color: var(--color-primary-400);
}

/* Hover */
.form-check:hover .form-check__box {
  border-color: var(--color-primary-300);
}

/* Disabled */
.form-check__input:disabled + .form-check__box {
  background-color: var(--color-neutral-100);
  border-color: var(--color-neutral-300);
  cursor: not-allowed;
}

.form-check__input:disabled ~ .form-check__label {
  color: var(--color-text-tertiary);
  cursor: not-allowed;
}

/* Checkbox label */
.form-check__label {
  font-size: var(--text-base);
  line-height: var(--leading-normal);
  color: var(--color-text-secondary);
  cursor: pointer;
  user-select: none;
}


/* ======================================================================
   7. ERROR & HELP MESSAGES
   ====================================================================== */

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

/* Error icon */
.form-error__icon {
  width: 14px;
  height: 14px;
  flex-shrink: 0;
}

/* Help / hint text */
.form-hint {
  font-size: var(--text-xs);
  color: var(--color-text-tertiary);
  margin-top: var(--space-1);
}


/* ======================================================================
   8. INPUT WITH ICON
   ====================================================================== */

.form-input-wrapper {
  position: relative;
}

.form-input-wrapper .form-input {
  padding-left: var(--space-10);
}

.form-input-wrapper__icon {
  position: absolute;
  left: var(--space-3);
  top: 50%;
  transform: translateY(-50%);
  width: 20px;
  height: 20px;
  color: var(--color-text-tertiary);
  pointer-events: none;
}

.form-input-wrapper__icon svg {
  width: 100%;
  height: 100%;
  fill: none;
  stroke: currentColor;
  stroke-width: 2;
}

/* Icon sağda */
.form-input-wrapper--right .form-input {
  padding-left: var(--space-4);
  padding-right: var(--space-10);
}

.form-input-wrapper--right .form-input-wrapper__icon {
  left: auto;
  right: var(--space-3);
}


/* ======================================================================
   9. FORM ACTIONS (submit area)
   ====================================================================== */

.form-actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-3);
  padding-top: var(--space-4);
}

.form-actions--center {
  justify-content: center;
}

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

/* Mobilde tam genişlik butonlar */
@media (max-width: 479px) {
  .form-actions--stack {
    flex-direction: column;
  }

  .form-actions--stack .btn {
    width: 100%;
  }
}


/* ======================================================================
   10. FORM FEEDBACK (başarılı gönderim vb.)
   ====================================================================== */

.form-feedback {
  padding: var(--space-4) var(--space-5);
  border-radius: var(--radius-md);
  font-size: var(--text-sm);
  font-weight: var(--weight-medium);
  display: flex;
  align-items: center;
  gap: var(--space-3);
}

.form-feedback--success {
  background-color: var(--color-success-light);
  color: var(--color-success);
  border: 1px solid var(--color-success);
}

.form-feedback--error {
  background-color: var(--color-error-light);
  color: var(--color-error);
  border: 1px solid var(--color-error);
}

.form-feedback--info {
  background-color: var(--color-info-light);
  color: var(--color-info);
  border: 1px solid var(--color-info);
}

.form-feedback__icon {
  width: 20px;
  height: 20px;
  flex-shrink: 0;
}