/* ===================================
   FORM COMPONENTS & STYLES
   =================================== */

/* FORM LAYOUT & CONTAINERS */
.form-container {
  max-width: var(--container-max-width);
  margin: 0 auto;
  padding-top: var(--space-lg);
}

.form-container--centered {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: calc(100vh - var(--navbar-height) - var(--space-lg));
}


.form-container--no-navbar {
  min-height: calc(100vh - var(--space-lg));
}

.form-card {
  background-color: var(--color-surface);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-card);
  padding: var(--space-xl);
  border: none;
  width: 100%;
}

.form-header {
  text-align: center;
  margin-bottom: var(--space-xl);
}

.form-header img {
  width: 80px;
  height: 80px;
  max-width: 80px;
  max-height: 80px;
  object-fit: contain;
  margin-bottom: var(--space-lg);
  border-radius: var(--radius-md);
}

.form-title {
  font-size: var(--font-size-3xl);
  font-weight: 800;
  color: var(--color-text-primary);
  margin-bottom: var(--space-sm);
}

.form-subtitle {
  color: var(--color-text-secondary);
  font-size: var(--font-size-base);
  font-weight: 600;
  margin: 0;
}

/* FORM FIELDS */
.form-group {
  margin-bottom: var(--space-lg);
}

.form-label {
  display: block;
  margin-bottom: var(--space-sm);
  font-size: var(--font-size-sm);
  font-weight: 700;
  color: var(--color-text-primary);
}

.form-label--required::after {
  content: ' *';
  color: var(--color-accent-error);
}

.form-input,
.form-select {
  width: 100%;
  padding: var(--space-md);
  border: 2px solid rgba(0, 0, 0, 0.08);
  border-radius: var(--radius-md);
  font-size: var(--font-size-base);
  font-family: 'Nunito', sans-serif;
  font-weight: 500;
  background-color: var(--color-surface);
  color: var(--color-text-primary);
  transition: border-color 0.2s ease, box-shadow 0.2s ease;
  min-height: 48px;
}

.form-input:focus,
.form-select:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(47, 111, 237, 0.1);
}

.form-input::placeholder {
  color: var(--color-text-secondary);
  opacity: 0.7;
}

/* FORM VALIDATION STATES */
.form-input--error,
.form-select--error {
  border-color: var(--color-accent-error);
}

.form-input--error:focus,
.form-select--error:focus {
  border-color: var(--color-accent-error);
  box-shadow: 0 0 0 3px rgba(196, 0, 0, 0.1);
}

.form-error {
  display: block;
  margin-top: var(--space-xs);
  color: var(--color-accent-error);
  font-size: var(--font-size-sm);
  font-weight: 600;
  line-height: var(--line-height-normal);
}

.form-errors {
  margin-bottom: var(--space-md);
}

.form-errors ul {
  list-style: none;
  margin: 0;
  padding: 0;
}

.form-errors li {
  background-color: rgba(196, 0, 0, 0.08);
  color: var(--color-accent-error);
  padding: var(--space-sm) var(--space-md);
  border-radius: var(--radius-sm);
  margin-bottom: var(--space-xs);
  font-size: var(--font-size-sm);
  font-weight: 600;
  border-left: 4px solid var(--color-accent-error);
}

/* FORM ACTIONS */
.form-actions {
  margin-top: var(--space-xl);
  display: flex;
  flex-direction: column;
  gap: var(--space-md);
}

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

.form-actions--danger {
  margin-top: var(--space-lg);
  padding-top: var(--space-lg);
  border-top: 1px solid rgba(0, 0, 0, 0.06);
}

.form-footer {
  text-align: center;
  margin-top: var(--space-lg);
  padding-top: var(--space-lg);
  border-top: 1px solid rgba(0, 0, 0, 0.06);
}

.form-footer-text {
  color: var(--color-text-secondary);
  font-size: var(--font-size-sm);
  font-weight: 600;
  margin-bottom: var(--space-sm);
}

.form-footer-link {
  color: var(--color-primary);
  text-decoration: none;
  font-weight: 700;
  transition: color 0.2s ease;
}

.form-footer-link:hover {
  color: var(--color-primary-dark);
  text-decoration: underline;
}

/* DELETE CONFIRMATION STYLES */
.delete-confirmation {
  margin-top: var(--space-xl);
}

.deck-info {
  background-color: var(--color-background);
  padding: var(--space-lg);
  border-radius: var(--radius-lg);
  margin-bottom: var(--space-xl);
  text-align: center;
}

.deck-name {
  font-size: var(--font-size-2xl);
  font-weight: 800;
  margin-bottom: var(--space-sm);
  color: var(--color-text-primary);
}

.deck-details {
  color: var(--color-text-secondary);
  font-size: var(--font-size-base);
  margin: 0;
  font-weight: 600;
}

.deck-language,
.deck-card-count {
  font-weight: 700;
}

.warning-message {
  margin-bottom: var(--space-xl);
}

.warning-box {
  display: flex;
  align-items: flex-start;
  gap: var(--space-md);
  padding: var(--space-lg);
  border-radius: var(--radius-md);
  border-left: 4px solid;
}

.warning-box--danger {
  background-color: rgba(196, 0, 0, 0.05);
  border-left-color: var(--color-accent-error);
}

.warning-box--info {
  background-color: rgba(47, 111, 237, 0.05);
  border-left-color: var(--color-primary);
}

.warning-icon,
.info-icon {
  width: 24px;
  height: 24px;
  flex-shrink: 0;
  margin-top: 2px;
}

.warning-box--danger .warning-icon {
  color: var(--color-accent-error);
}

.warning-box--info .info-icon {
  color: var(--color-primary);
}

.warning-box strong {
  display: block;
  margin-bottom: var(--space-xs);
  color: var(--color-text-primary);
  font-weight: 700;
}

.warning-box p {
  margin: 0;
  color: var(--color-text-secondary);
  font-weight: 600;
  line-height: var(--line-height-relaxed);
}

/* FORM FIELD GROUPS */
.form-row {
  display: flex;
  gap: var(--space-md);
}

.form-row .form-group {
  flex: 1;
  margin-bottom: var(--space-lg);
}

/* FORM SECTIONS */
.form-section {
  margin-bottom: var(--space-2xl);
  padding-bottom: var(--space-xl);
  border-bottom: 1px solid rgba(0, 0, 0, 0.06);
}

.form-section:last-of-type {
  border-bottom: none;
  padding-bottom: 0;
}

.form-section-title {
  font-size: var(--font-size-xl);
  font-weight: 700;
  color: var(--color-text-primary);
  margin-bottom: var(--space-lg);
  padding-bottom: var(--space-sm);
  border-bottom: 2px solid var(--color-primary);
}

/* PASSWORD SECTION */
.form-password-section {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--space-md);
  background-color: rgba(0, 0, 0, 0.02);
  border-radius: var(--radius-md);
  border: 1px solid rgba(0, 0, 0, 0.08);
  gap: var(--space-md);
}

.form-password-text {
  display: flex;
  flex-direction: column;
  gap: var(--space-xs);
  margin: 0;
  flex: 1;
}

.form-password-placeholder {
  font-family: monospace;
  font-size: var(--font-size-lg);
  color: var(--color-text-secondary);
  letter-spacing: 2px;
}

.form-password-section .btn {
  flex-shrink: 0;
  margin: 0;
}

/* CHECKBOX GROUPS */
.form-checkbox-group {
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
  padding: var(--space-md);
  background-color: rgba(0, 0, 0, 0.02);
  border-radius: var(--radius-md);
  border: 1px solid rgba(0, 0, 0, 0.08);
}

.form-checkbox-item {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
}

.form-checkbox-item input[type="checkbox"] {
  width: 18px;
  height: 18px;
  cursor: pointer;
  accent-color: var(--color-primary);
}

.form-checkbox-label {
  font-size: var(--font-size-base);
  font-weight: 600;
  color: var(--color-text-primary);
  cursor: pointer;
  margin: 0;
  flex: 1;
}

.form-help-text {
  display: block;
  margin-top: var(--space-xs);
  color: var(--color-text-secondary);
  font-size: var(--font-size-sm);
  font-weight: 500;
  line-height: var(--line-height-normal);
}

/* RESPONSIVE FORM ADJUSTMENTS */
@media (max-width: 480px) {
  .form-container {
    padding-top: var(--space-md);
  }

  .form-card {
    padding: var(--space-lg);
  }

  .form-title {
    font-size: var(--font-size-2xl);
  }

  .form-row {
    flex-direction: column;
    gap: 0;
  }

  .form-password-section {
    flex-direction: column;
    align-items: stretch;
    gap: var(--space-md);
    text-align: center;
  }

  .form-password-section .btn {
    width: 100%;
  }
}

@media (min-width: 481px) {
  .form-container {
    padding-top: var(--space-xl);
  }

  .form-container--wide {
    max-width: var(--container-max-width);
  }

  .form-header img {
    width: 100px;
    height: 100px;
    max-width: 100px;
    max-height: 100px;
  }

  .form-actions {
    flex-direction: row;
    justify-content: center;
    flex-wrap: wrap;
    gap: var(--space-lg);
  }

  .form-actions .btn {
    width: auto;
    min-width: 140px;
    flex: 0 0 auto;
  }
}