/* ═══════════════════════════════════════════════════════════════
   NEOIT Components
   Общие визуальные компоненты. Используют design-tokens.css.
   Не влияют на legacy-элементы без явного класса .btn.
   ═══════════════════════════════════════════════════════════════ */


/* ─────────────────────────────────────────────────────────────
   BUTTONS
   Использование: <button class="btn btn--primary">Действие</button>
   ───────────────────────────────────────────────────────────── */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  box-sizing: border-box;
  font-family: var(--font-family-base);
  font-size: var(--font-size-md);
  font-weight: var(--font-weight-medium);
  line-height: 1;
  height: var(--control-height-md);
  padding: 0 var(--space-4);
  border: 1px solid transparent;
  border-radius: var(--radius-md);
  cursor: pointer;
  white-space: nowrap;
  user-select: none;
  text-decoration: none;
  transition: background var(--transition-fast), border-color var(--transition-fast), box-shadow var(--transition-fast), opacity var(--transition-fast);
  outline: none;
}

.btn:focus-visible {
  box-shadow: var(--focus-ring);
}

/* ── Variant: Primary ── */

.btn--primary {
  background: var(--button-primary-bg);
  color: var(--button-primary-text);
  border-color: var(--button-primary-border);
}

.btn--primary:hover:not(:disabled):not(.btn--loading) {
  background: var(--button-primary-bg-hover);
}

.btn--primary:active:not(:disabled):not(.btn--loading) {
  background: var(--button-primary-bg-active);
}

/* ── Variant: Secondary ── */

.btn--secondary {
  background: var(--button-secondary-bg);
  color: var(--button-secondary-text);
  border-color: var(--button-secondary-border);
}

.btn--secondary:hover:not(:disabled):not(.btn--loading) {
  background: var(--button-secondary-bg-hover);
}

.btn--secondary:active:not(:disabled):not(.btn--loading) {
  background: var(--neutral-150);
}

/* ── Variant: Danger ── */

.btn--danger {
  background: var(--button-danger-bg);
  color: var(--button-danger-text);
  border-color: var(--button-danger-border);
}

.btn--danger:hover:not(:disabled):not(.btn--loading) {
  background: var(--button-danger-bg-hover);
}

.btn--danger:active:not(:disabled):not(.btn--loading) {
  background: var(--red-800);
}

/* ── Variant: Ghost ── */

.btn--ghost {
  background: var(--button-ghost-bg);
  color: var(--button-ghost-text);
  border-color: var(--button-ghost-border);
}

.btn--ghost:hover:not(:disabled):not(.btn--loading) {
  background: var(--button-ghost-bg-hover);
}

.btn--ghost:active:not(:disabled):not(.btn--loading) {
  background: var(--neutral-200);
}

/* ── Variant: Link ── */

.btn--link {
  background: transparent;
  color: var(--color-text-link);
  border-color: transparent;
  padding-left: 0;
  padding-right: 0;
  height: auto;
  text-decoration: underline;
  text-underline-offset: 2px;
}

.btn--link:hover:not(:disabled) {
  color: var(--color-text-link-hover);
}

/* ── Sizes ── */

.btn--sm {
  height: var(--control-height-sm);
  padding: 0 var(--space-3);
  font-size: var(--font-size-sm);
  border-radius: var(--radius-sm);
}

.btn--lg {
  height: var(--control-height-lg);
  padding: 0 var(--space-6);
  font-size: var(--font-size-lg);
}

/* ── Disabled ── */
/* Supports both <button disabled> and aria-disabled="true".
   Note: aria-disabled does NOT prevent JS click handlers —
   the handler must check [aria-disabled] itself. */

.btn:disabled,
.btn[aria-disabled="true"] {
  background: var(--button-disabled-bg);
  color: var(--button-disabled-text);
  border-color: var(--button-disabled-border);
  cursor: not-allowed;
  pointer-events: none;
}

/* ── Loading ── */
/* Usage: <button class="btn btn--primary btn--loading" aria-busy="true">
   The spinner replaces visual interaction. Width is preserved via min-width or content. */

.btn--loading {
  pointer-events: none;
  position: relative;
  color: transparent;
}

.btn--loading::after {
  content: "";
  position: absolute;
  width: 16px;
  height: 16px;
  border: 2px solid currentColor;
  border-top-color: transparent;
  border-radius: 50%;
  animation: btn-spin 0.6s linear infinite;
  /* Restore color for spinner */
  color: var(--neutral-400);
}

.btn--primary.btn--loading::after {
  color: var(--neutral-0);
}

.btn--danger.btn--loading::after {
  color: var(--neutral-0);
}

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

/* ── Icon-only button ── */
/* Usage: <button class="btn btn--ghost btn--icon" aria-label="Удалить">
   Must have aria-label when no visible text. */

.btn--icon {
  padding: 0;
  width: var(--control-height-md);
}

.btn--icon.btn--sm {
  width: var(--control-height-sm);
}

.btn--icon.btn--lg {
  width: var(--control-height-lg);
}

/* ── SVG inside buttons ── */

.btn svg {
  width: 16px;
  height: 16px;
  flex-shrink: 0;
  fill: none;
  stroke: currentColor;
  stroke-width: 2;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.btn--sm svg {
  width: 14px;
  height: 14px;
}

.btn--lg svg {
  width: 20px;
  height: 20px;
}


/* ─────────────────────────────────────────────────────────────
   BUTTON GROUP
   Usage: <div class="btn-group">...</div>
   ───────────────────────────────────────────────────────────── */

.btn-group {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  flex-wrap: wrap;
}


/* ─────────────────────────────────────────────────────────────
   TOAST / NOTIFICATIONS
   Usage: NeoitHub.notify({ type, title, message })
   Контейнер создаётся автоматически при первом вызове.
   ───────────────────────────────────────────────────────────── */

.toast-region {
  position: fixed;
  top: var(--space-4);
  right: var(--space-4);
  z-index: 10000;
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
  pointer-events: none;
  max-width: var(--toast-width);
  width: 100%;
}

.toast {
  display: flex;
  align-items: flex-start;
  gap: var(--space-3);
  padding: var(--space-3) var(--space-4);
  border: 1px solid var(--color-border);
  border-radius: var(--toast-radius);
  background: var(--color-surface);
  box-shadow: var(--toast-shadow);
  pointer-events: auto;
  font-family: var(--font-family-base);
  font-size: var(--font-size-md);
  line-height: var(--line-height-normal);
  color: var(--color-text-primary);
  opacity: 0;
  transform: translateX(16px);
  transition: opacity var(--transition-base), transform var(--transition-base);
}

.toast--visible {
  opacity: 1;
  transform: translateX(0);
}

.toast--leaving {
  opacity: 0;
  transform: translateX(16px);
}

/* Variants */
.toast--success {
  background: var(--toast-success-bg);
  border-color: var(--toast-success-border);
  color: var(--toast-success-text);
}

.toast--error {
  background: var(--toast-error-bg);
  border-color: var(--toast-error-border);
  color: var(--toast-error-text);
}

.toast--warning {
  background: var(--toast-warning-bg);
  border-color: var(--toast-warning-border);
  color: var(--toast-warning-text);
}

.toast--info {
  background: var(--toast-info-bg);
  border-color: var(--toast-info-border);
  color: var(--toast-info-text);
}

/* Icon indicator */
.toast__icon {
  flex-shrink: 0;
  width: 20px;
  height: 20px;
  border-radius: 50%;
  margin-top: 2px;
}

.toast--success .toast__icon { background: var(--color-success); }
.toast--error .toast__icon   { background: var(--color-error); }
.toast--warning .toast__icon { background: var(--color-warning); }
.toast--info .toast__icon    { background: var(--color-info); }

/* Content */
.toast__content {
  flex: 1;
  min-width: 0;
}

.toast__title {
  font-weight: var(--font-weight-semibold);
  margin-bottom: 2px;
}

.toast__title:empty {
  display: none;
}

.toast__message {
  word-wrap: break-word;
}

/* Close button */
.toast__close {
  flex-shrink: 0;
  width: 24px;
  height: 24px;
  padding: 0;
  border: none;
  background: transparent;
  cursor: pointer;
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0.6;
  transition: opacity var(--transition-fast);
  color: currentColor;
  font-size: 16px;
  line-height: 1;
}

.toast__close:hover {
  opacity: 1;
}

/* Reduced motion */
@media (prefers-reduced-motion: reduce) {
  .toast {
    transition: none;
    transform: none;
  }
  .toast--leaving {
    transform: none;
  }
}

/* Responsive: на мобильных шире */
@media (max-width: 480px) {
  .toast-region {
    left: var(--space-2);
    right: var(--space-2);
    max-width: none;
  }
}


/* ─────────────────────────────────────────────────────────────
   MODAL
   Usage: NeoitHub.modal({ title, body, ... })
   Контейнер создаётся программно.
   ───────────────────────────────────────────────────────────── */

.nui-modal-overlay {
  position: fixed;
  inset: 0;
  z-index: 10100;
  background: var(--modal-overlay);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--space-4);
  opacity: 0;
  transition: opacity var(--transition-base);
}

.nui-modal-overlay--visible {
  opacity: 1;
}

.nui-modal-overlay--leaving {
  opacity: 0;
}

.nui-modal {
  background: var(--modal-bg);
  border: 1px solid var(--modal-border);
  border-radius: var(--modal-radius);
  box-shadow: var(--modal-shadow);
  width: 100%;
  max-width: var(--modal-width-md);
  max-height: calc(100vh - 64px);
  display: flex;
  flex-direction: column;
  transform: translateY(8px) scale(0.98);
  transition: transform var(--transition-base);
}

.nui-modal-overlay--visible .nui-modal {
  transform: translateY(0) scale(1);
}

.nui-modal-overlay--leaving .nui-modal {
  transform: translateY(8px) scale(0.98);
}

.nui-modal--sm { max-width: var(--modal-width-sm); }
.nui-modal--lg { max-width: var(--modal-width-lg); }

/* Header */
.nui-modal__header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--space-4) var(--space-6);
  border-bottom: 1px solid var(--color-border);
  flex-shrink: 0;
}

.nui-modal__title {
  font-size: var(--font-size-lg);
  font-weight: var(--font-weight-semibold);
  color: var(--color-text-primary);
  margin: 0;
  line-height: var(--line-height-tight);
}

.nui-modal__close {
  flex-shrink: 0;
  width: 32px;
  height: 32px;
  padding: 0;
  border: none;
  background: transparent;
  cursor: pointer;
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-text-muted);
  font-size: 20px;
  line-height: 1;
  transition: background var(--transition-fast), color var(--transition-fast);
}

.nui-modal__close:hover {
  background: var(--neutral-100);
  color: var(--color-text-primary);
}

.nui-modal__close:focus-visible {
  box-shadow: var(--focus-ring);
}

/* Body */
.nui-modal__body {
  padding: var(--space-6);
  overflow-y: auto;
  flex: 1;
  font-size: var(--font-size-md);
  line-height: var(--line-height-normal);
  color: var(--color-text-primary);
}

/* Footer */
.nui-modal__footer {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: var(--space-3);
  padding: var(--space-4) var(--space-6);
  border-top: 1px solid var(--color-border);
  flex-shrink: 0;
}

/* Confirm variant — icon + text layout */
.nui-modal__confirm-content {
  display: flex;
  align-items: flex-start;
  gap: var(--space-4);
}

.nui-modal__confirm-icon {
  flex-shrink: 0;
  width: 40px;
  height: 40px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 20px;
}

.nui-modal__confirm-icon--danger {
  background: var(--red-50);
  color: var(--color-error);
}

.nui-modal__confirm-icon--warning {
  background: var(--orange-50);
  color: var(--color-warning);
}

.nui-modal__confirm-icon--info {
  background: var(--blue-50);
  color: var(--color-info);
}

.nui-modal__confirm-text {
  flex: 1;
  min-width: 0;
}

.nui-modal__confirm-title {
  font-weight: var(--font-weight-semibold);
  margin-bottom: var(--space-1);
}

.nui-modal__confirm-message {
  color: var(--color-text-secondary);
}

/* Reduced motion */
@media (prefers-reduced-motion: reduce) {
  .nui-modal-overlay,
  .nui-modal {
    transition: none;
    transform: none;
  }
  .nui-modal-overlay--leaving .nui-modal {
    transform: none;
  }
}


/* ─────────────────────────────────────────────────────────────
   BADGES
   Usage: <span class="badge badge--success">Выполнен</span>
   ───────────────────────────────────────────────────────────── */

.badge {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: var(--badge-padding);
  font-family: var(--font-family-base);
  font-size: var(--badge-font-size);
  font-weight: var(--badge-font-weight);
  line-height: 1;
  border-radius: var(--badge-radius);
  white-space: nowrap;
  vertical-align: middle;
  /* Default: neutral */
  background: var(--neutral-100);
  color: var(--neutral-700);
}

.badge--success {
  background: var(--color-success-soft);
  color: var(--color-success-text);
}

.badge--warning {
  background: var(--color-warning-soft);
  color: var(--color-warning-text);
}

.badge--error {
  background: var(--color-error-soft);
  color: var(--color-error-text);
}

.badge--info {
  background: var(--color-info-soft);
  color: var(--color-info-text);
}

.badge--primary {
  background: var(--color-primary-soft);
  color: var(--purple-700);
}

/* Dot indicator */
.badge__dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: currentColor;
}

/* Larger badge variant */
.badge--lg {
  padding: 4px 12px;
  font-size: var(--font-size-sm);
}


/* ─────────────────────────────────────────────────────────────
   FORM CONTROLS
   Usage: <input class="input" type="text">
          <select class="select">...</select>
   ───────────────────────────────────────────────────────────── */

.input,
.select,
.textarea {
  box-sizing: border-box;
  font-family: var(--font-family-base);
  font-size: var(--input-font-size);
  line-height: var(--line-height-normal);
  height: var(--input-height);
  padding: 0 var(--input-padding-x);
  background: var(--input-bg);
  color: var(--input-text);
  border: 1px solid var(--input-border);
  border-radius: var(--input-radius);
  outline: none;
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
  width: 100%;
}

.textarea {
  height: auto;
  min-height: 80px;
  padding: var(--space-2) var(--input-padding-x);
  resize: vertical;
}

.input::placeholder,
.textarea::placeholder {
  color: var(--input-placeholder);
}

.input:hover:not(:disabled):not(:focus):not(.input--error),
.select:hover:not(:disabled):not(:focus):not(.select--error),
.textarea:hover:not(:disabled):not(:focus):not(.textarea--error) {
  border-color: var(--input-border-hover);
}

.input:focus,
.select:focus,
.textarea:focus {
  border-color: var(--input-border-focus);
  box-shadow: var(--focus-ring);
}

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

.input--error:focus,
.select--error:focus,
.textarea--error:focus {
  border-color: var(--input-border-error);
  box-shadow: 0 0 0 2px var(--red-50), 0 0 0 4px var(--red-700);
}

/* Disabled */
.input:disabled,
.select:disabled,
.textarea:disabled {
  background: var(--input-disabled-bg);
  color: var(--color-text-disabled);
  cursor: not-allowed;
}

/* Sizes */
.input--sm,
.select--sm {
  height: var(--input-height-sm);
  font-size: var(--font-size-sm);
  padding: 0 var(--space-2);
}

.input--lg,
.select--lg {
  height: var(--input-height-lg);
  font-size: var(--font-size-lg);
  padding: 0 var(--space-4);
}

/* Select arrow */
.select {
  appearance: none;
  padding-right: 32px;
  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='%23757575' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M6 9l6 6 6-6'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 10px center;
  background-size: 16px;
}

/* Checkbox & Toggle */
.checkbox {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  cursor: pointer;
  font-family: var(--font-family-base);
  font-size: var(--font-size-md);
  user-select: none;
}

.checkbox__input {
  width: 16px;
  height: 16px;
  accent-color: var(--color-primary);
  cursor: pointer;
}

.checkbox__input:focus-visible {
  outline: none;
  box-shadow: var(--focus-ring);
  border-radius: 3px;
}

/* Toggle switch */
.toggle {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  cursor: pointer;
  font-family: var(--font-family-base);
  font-size: var(--font-size-md);
  user-select: none;
}

.toggle__track {
  position: relative;
  width: 36px;
  height: 20px;
  background: var(--neutral-300);
  border-radius: var(--radius-full);
  transition: background var(--transition-fast);
  flex-shrink: 0;
}

.toggle__input {
  position: absolute;
  opacity: 0;
  width: 0;
  height: 0;
}

.toggle__input:checked + .toggle__track {
  background: var(--color-primary);
}

.toggle__track::after {
  content: "";
  position: absolute;
  top: 2px;
  left: 2px;
  width: 16px;
  height: 16px;
  background: var(--neutral-0);
  border-radius: 50%;
  box-shadow: var(--shadow-sm);
  transition: transform var(--transition-fast);
}

.toggle__input:checked + .toggle__track::after {
  transform: translateX(16px);
}

.toggle__input:focus-visible + .toggle__track {
  box-shadow: var(--focus-ring);
}

.toggle__input:disabled + .toggle__track {
  opacity: 0.5;
  cursor: not-allowed;
}

/* Form field wrapper */
.form-field {
  display: flex;
  flex-direction: column;
  gap: var(--space-1);
}

.form-field__label {
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-medium);
  color: var(--color-text-secondary);
}

.form-field__hint {
  font-size: var(--font-size-xs);
  color: var(--color-text-muted);
}

.form-field__error {
  font-size: var(--font-size-xs);
  color: var(--color-error);
}


/* ─────────────────────────────────────────────────────────────
   STATES: Loading, Empty, Error
   Usage: <div class="state state--loading">...</div>
   ───────────────────────────────────────────────────────────── */

.state {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: var(--space-3);
  padding: var(--space-12) var(--space-6);
  text-align: center;
  font-family: var(--font-family-base);
}

.state__icon {
  font-size: 40px;
  line-height: 1;
  color: var(--state-empty-color);
}

.state__title {
  font-size: var(--font-size-lg);
  font-weight: var(--font-weight-medium);
  color: var(--color-text-primary);
}

.state__message {
  font-size: var(--font-size-md);
  color: var(--color-text-secondary);
  max-width: 360px;
}

/* Loading spinner */
.state--loading .state__icon::after {
  content: "";
  display: block;
  width: 32px;
  height: 32px;
  margin: 0 auto;
  border: 3px solid var(--neutral-200);
  border-top-color: var(--color-primary);
  border-radius: 50%;
  animation: btn-spin 0.8s linear infinite;
}

/* Error state accent */
.state--error .state__icon {
  color: var(--color-error);
}

.state--error .state__title {
  color: var(--color-error-text);
}

/* Inline loading (for table rows, small areas) */
.spinner {
  display: inline-block;
  width: 16px;
  height: 16px;
  border: 2px solid var(--neutral-200);
  border-top-color: var(--color-primary);
  border-radius: 50%;
  animation: btn-spin 0.8s linear infinite;
  vertical-align: middle;
}

.spinner--sm {
  width: 12px;
  height: 12px;
  border-width: 1.5px;
}

.spinner--lg {
  width: 24px;
  height: 24px;
  border-width: 3px;
}