/**
 * MBTI人格乐园 Component Library
 * Reusable UI components built with design tokens
 */

/* ========================================
   BUTTONS
   ======================================== */

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-2);
    font-family: var(--font-family-base);
    font-size: var(--font-size-base);
    font-weight: var(--font-weight-medium);
    line-height: 1;
    padding: 0 var(--btn-padding-x-md);
    height: var(--btn-height-md);
    border: 1px solid transparent;
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: all var(--duration-150) var(--ease-in-out);
    text-decoration: none;
    white-space: nowrap;
    user-select: none;
}

.btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

/* Button sizes */
.btn-sm {
    font-size: var(--font-size-sm);
    padding: 0 var(--btn-padding-x-sm);
    height: var(--btn-height-sm);
}

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

/* Primary Button */
.btn-primary {
    background-color: var(--color-primary);
    color: white;
    border-color: var(--color-primary);
}

.btn-primary:hover:not(:disabled) {
    background-color: var(--color-primary-600);
    border-color: var(--color-primary-600);
    transform: translateY(-1px);
    box-shadow: var(--shadow-primary);
}

.btn-primary:active:not(:disabled) {
    background-color: var(--color-primary-700);
    border-color: var(--color-primary-700);
    transform: translateY(0);
}

/* Secondary Button */
.btn-secondary {
    background-color: var(--bg-secondary);
    color: var(--text-primary);
    border-color: var(--border-default);
}

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

.btn-secondary:active:not(:disabled) {
    background-color: var(--bg-active);
}

/* Outline Button */
.btn-outline {
    background-color: transparent;
    color: var(--color-primary);
    border-color: var(--color-primary);
}

.btn-outline:hover:not(:disabled) {
    background-color: var(--color-primary-50);
}

.btn-outline:active:not(:disabled) {
    background-color: var(--color-primary-100);
}

/* Gradient Button */
.btn-gradient {
    background-image: var(--gradient-primary);
    color: white;
    border: none;
}

.btn-gradient:hover:not(:disabled) {
    transform: translateY(-2px) scale(1.02);
    box-shadow: var(--shadow-lg);
}

/* Ghost Button */
.btn-ghost {
    background-color: transparent;
    color: var(--text-primary);
    border-color: transparent;
}

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

.btn-ghost:active:not(:disabled) {
    background-color: var(--bg-active);
}

/* Danger Button */
.btn-danger {
    background-color: var(--color-error);
    color: white;
    border-color: var(--color-error);
}

.btn-danger:hover:not(:disabled) {
    background-color: var(--color-error-dark);
    transform: translateY(-1px);
}

/* Success Button */
.btn-success {
    background-color: var(--color-success);
    color: white;
    border-color: var(--color-success);
}

.btn-success:hover:not(:disabled) {
    background-color: var(--color-success-dark);
    transform: translateY(-1px);
}

/* Full width button */
.btn-block {
    width: 100%;
    display: flex;
}

/* Icon button */
.btn-icon {
    padding: 0;
    width: 40px;
    height: 40px;
}

.btn-icon.btn-sm {
    width: 32px;
    height: 32px;
}

.btn-icon.btn-lg {
    width: 48px;
    height: 48px;
}

/* Loading state */
.btn-loading {
    position: relative;
    color: transparent !important;
    pointer-events: none;
}

.btn-loading::after {
    content: "";
    position: absolute;
    width: 16px;
    height: 16px;
    border: 2px solid transparent;
    border-top-color: currentColor;
    border-radius: 50%;
    animation: spin 0.6s linear infinite;
}

/* Button group */
.btn-group {
    display: inline-flex;
}

.btn-group .btn {
    border-radius: 0;
    border-right-width: 0;
    margin-left: -1px;
}

.btn-group .btn:first-child {
    border-top-left-radius: var(--radius-md);
    border-bottom-left-radius: var(--radius-md);
    margin-left: 0;
}

.btn-group .btn:last-child {
    border-top-right-radius: var(--radius-md);
    border-bottom-right-radius: var(--radius-md);
    border-right-width: 1px;
}

/* ========================================
   FORM INPUTS
   ======================================== */

.input-group {
    position: relative;
    display: flex;
    flex-direction: column;
    gap: var(--space-1);
    margin-bottom: var(--space-4);
}

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

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

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

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

/* Text input */
.form-input {
    width: 100%;
    height: var(--input-height-md);
    padding: 0 var(--input-padding-x);
    font-family: var(--font-family-base);
    font-size: var(--font-size-base);
    color: var(--text-primary);
    background-color: var(--input-bg, var(--bg-primary));
    border: 1px solid var(--input-border, var(--border-default));
    border-radius: var(--radius-md);
    transition: all var(--duration-150) var(--ease-in-out);
}

.form-input::placeholder {
    color: var(--input-placeholder, var(--color-neutral-400));
}

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

.form-input:focus {
    outline: none;
    border-color: var(--input-focus-border, var(--color-primary));
    box-shadow: 0 0 0 3px var(--color-primary-100);
}

.form-input:disabled {
    background-color: var(--bg-disabled);
    cursor: not-allowed;
    opacity: 0.6;
}

.form-input.error {
    border-color: var(--color-error);
}

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

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

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

/* Input sizes */
.form-input-sm {
    height: var(--input-height-sm);
    font-size: var(--font-size-sm);
}

.form-input-lg {
    height: var(--input-height-lg);
    font-size: var(--font-size-lg);
}

/* Textarea */
.form-textarea {
    min-height: 120px;
    padding: var(--space-3) var(--input-padding-x);
    line-height: var(--line-height-normal);
    resize: vertical;
}

.form-textarea.form-textarea-sm {
    min-height: 80px;
}

.form-textarea.form-textarea-lg {
    min-height: 160px;
}

/* Select */
.form-select {
    appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' viewBox='0 0 16 16'%3E%3Cpath fill='%236b7280' d='M4 6l4 4 4-4'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 12px center;
    padding-right: 36px;
}

/* Checkbox */
.form-checkbox {
    appearance: none;
    width: 20px;
    height: 20px;
    border: 2px solid var(--border-default);
    border-radius: var(--radius-sm);
    cursor: pointer;
    transition: all var(--duration-150) var(--ease-in-out);
    position: relative;
}

.form-checkbox:checked {
    background-color: var(--color-primary);
    border-color: var(--color-primary);
}

.form-checkbox:checked::after {
    content: "✓";
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    color: white;
    font-size: 12px;
    font-weight: bold;
}

/* Radio */
.form-radio {
    appearance: none;
    width: 20px;
    height: 20px;
    border: 2px solid var(--border-default);
    border-radius: 50%;
    cursor: pointer;
    transition: all var(--duration-150) var(--ease-in-out);
    position: relative;
}

.form-radio:checked {
    border-color: var(--color-primary);
}

.form-radio:checked::after {
    content: "";
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 10px;
    height: 10px;
    background-color: var(--color-primary);
    border-radius: 50%;
}

/* Switch toggle */
.form-switch {
    position: relative;
    width: 44px;
    height: 24px;
    background-color: var(--bg-tertiary);
    border-radius: var(--radius-full);
    cursor: pointer;
    transition: background-color var(--duration-200) var(--ease-in-out);
}

.form-switch::after {
    content: "";
    position: absolute;
    top: 2px;
    left: 2px;
    width: 20px;
    height: 20px;
    background-color: white;
    border-radius: 50%;
    transition: transform var(--duration-200) var(--ease-in-out);
    box-shadow: var(--shadow-sm);
}

.form-switch.active {
    background-color: var(--color-primary);
}

.form-switch.active::after {
    transform: translateX(20px);
}

/* ========================================
   BADGES & CHIPS
   ======================================== */

.badge {
    display: inline-flex;
    align-items: center;
    padding: var(--badge-padding-y) var(--badge-padding-x);
    font-size: var(--badge-font-size);
    font-weight: var(--font-weight-medium);
    border-radius: var(--radius-md);
    white-space: nowrap;
}

.badge-primary {
    background-color: var(--color-primary-50);
    color: var(--color-primary-700);
}

.badge-secondary {
    background-color: var(--color-secondary-50);
    color: var(--color-secondary-700);
}

.badge-success {
    background-color: var(--color-success-light);
    color: var(--color-success-dark);
}

.badge-warning {
    background-color: var(--color-warning-light);
    color: var(--color-warning-dark);
}

.badge-error {
    background-color: var(--color-error-light);
    color: var(--color-error-dark);
}

/* Chip */
.chip {
    display: inline-flex;
    align-items: center;
    height: var(--chip-height);
    padding: 0 var(--chip-padding-x);
    font-size: var(--chip-font-size);
    background-color: var(--bg-secondary);
    border: 1px solid var(--border-default);
    border-radius: var(--radius-full);
    cursor: pointer;
    transition: all var(--duration-150) var(--ease-in-out);
}

.chip:hover {
    background-color: var(--bg-hover);
    border-color: var(--border-hover);
}

.chip.active {
    background-color: var(--color-primary-50);
    border-color: var(--color-primary);
    color: var(--color-primary-700);
}

.chip .chip-close {
    margin-left: var(--space-1);
    width: 16px;
    height: 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    transition: background-color var(--duration-150) var(--ease-in-out);
}

.chip .chip-close:hover {
    background-color: var(--bg-tertiary);
}

/* ========================================
   AVATARS
   ======================================== */

.avatar {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    border-radius: var(--radius-full);
    font-weight: var(--font-weight-semibold);
    color: var(--text-inverse);
    background-color: var(--color-primary);
    overflow: hidden;
}

.avatar img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

/* Avatar sizes */
.avatar-xs {
    width: var(--avatar-size-xs);
    height: var(--avatar-size-xs);
    font-size: 10px;
}

.avatar-sm {
    width: var(--avatar-size-sm);
    height: var(--avatar-size-sm);
    font-size: 12px;
}

.avatar-md {
    width: var(--avatar-size-md);
    height: var(--avatar-size-md);
    font-size: 14px;
}

.avatar-lg {
    width: var(--avatar-size-lg);
    height: var(--avatar-size-lg);
    font-size: 18px;
}

.avatar-xl {
    width: var(--avatar-size-xl);
    height: var(--avatar-size-xl);
    font-size: 24px;
}

/* Avatar variants */
.avatar-square {
    border-radius: var(--radius-md);
}

.avatar-outline {
    border: 2px solid var(--border-default);
}

.avatar-group {
    display: flex;
}

.avatar-group .avatar:not(:first-child) {
    margin-left: -8px;
    border: 2px solid var(--bg-primary);
}

/* ========================================
   MODALS
   ======================================== */

.modal-backdrop {
    position: fixed;
    inset: 0;
    background-color: rgba(0, 0, 0, 0.5);
    z-index: var(--z-modal-backdrop);
    opacity: 0;
    transition: opacity var(--duration-200) var(--ease-in-out);
}

.modal-backdrop.active {
    opacity: 1;
}

.modal {
    position: fixed;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%) scale(0.95);
    background-color: var(--bg-primary);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-2xl);
    z-index: var(--z-modal);
    max-width: 90vw;
    max-height: 90vh;
    overflow: auto;
    opacity: 0;
    transition: all var(--duration-200) var(--ease-in-out);
}

.modal.active {
    opacity: 1;
    transform: translate(-50%, -50%) scale(1);
}

/* Modal sizes */
.modal-sm {
    width: 400px;
}

.modal-md {
    width: 560px;
}

.modal-lg {
    width: 800px;
}

.modal-xl {
    width: 1000px;
}

.modal-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--space-6);
    border-bottom: 1px solid var(--border-default);
}

.modal-title {
    font-size: var(--font-size-xl);
    font-weight: var(--font-weight-semibold);
    color: var(--text-primary);
}

.modal-close {
    width: 32px;
    height: 32px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: transparent;
    border: none;
    border-radius: var(--radius-md);
    color: var(--text-tertiary);
    cursor: pointer;
    transition: all var(--duration-150) var(--ease-in-out);
}

.modal-close:hover {
    background-color: var(--bg-tertiary);
    color: var(--text-primary);
}

.modal-body {
    padding: var(--space-6);
}

.modal-footer {
    display: flex;
    gap: var(--space-3);
    justify-content: flex-end;
    padding: var(--space-6);
    border-top: 1px solid var(--border-default);
}

/* ========================================
   TOAST NOTIFICATIONS
   ======================================== */

.toast-container {
    position: fixed;
    top: var(--space-6);
    right: var(--space-6);
    z-index: var(--z-toast);
    display: flex;
    flex-direction: column;
    gap: var(--space-3);
}

.toast {
    display: flex;
    align-items: flex-start;
    gap: var(--space-3);
    padding: var(--space-4);
    background-color: var(--bg-primary);
    border: 1px solid var(--border-default);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
    min-width: 300px;
    max-width: 500px;
    animation: slideInRight var(--duration-300) var(--ease-in-out);
}

.toast.closing {
    animation: fadeOut var(--duration-200) var(--ease-in-out);
}

.toast-icon {
    flex-shrink: 0;
    width: 24px;
    height: 24px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.toast-content {
    flex: 1;
}

.toast-title {
    font-size: var(--font-size-base);
    font-weight: var(--font-weight-medium);
    color: var(--text-primary);
    margin-bottom: var(--space-1);
}

.toast-message {
    font-size: var(--font-size-sm);
    color: var(--text-secondary);
}

.toast-close {
    flex-shrink: 0;
    width: 20px;
    height: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: transparent;
    border: none;
    border-radius: var(--radius-sm);
    color: var(--text-tertiary);
    cursor: pointer;
}

.toast-close:hover {
    background-color: var(--bg-tertiary);
    color: var(--text-primary);
}

/* Toast variants */
.toast.success {
    border-left: 4px solid var(--color-success);
}

.toast.warning {
    border-left: 4px solid var(--color-warning);
}

.toast.error {
    border-left: 4px solid var(--color-error);
}

.toast.info {
    border-left: 4px solid var(--color-info);
}

/* ========================================
   DROPDOWN
   ======================================== */

.dropdown {
    position: relative;
    display: inline-block;
}

.dropdown-toggle {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    padding: var(--space-2) var(--space-3);
    background-color: var(--bg-secondary);
    border: 1px solid var(--border-default);
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: all var(--duration-150) var(--ease-in-out);
}

.dropdown-toggle:hover {
    background-color: var(--bg-hover);
    border-color: var(--border-hover);
}

.dropdown-menu {
    position: absolute;
    top: calc(100% + var(--space-1));
    left: 0;
    min-width: 200px;
    background-color: var(--bg-primary);
    border: 1px solid var(--border-default);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
    z-index: var(--z-dropdown);
    opacity: 0;
    visibility: hidden;
    transform: translateY(-4px);
    transition: all var(--duration-150) var(--ease-in-out);
}

.dropdown-menu.active {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.dropdown-item {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    padding: var(--space-2) var(--space-3);
    color: var(--text-primary);
    cursor: pointer;
    transition: background-color var(--duration-150) var(--ease-in-out);
}

.dropdown-item:hover {
    background-color: var(--bg-hover);
}

.dropdown-item.disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

.dropdown-divider {
    height: 1px;
    background-color: var(--border-default);
    margin: var(--space-1) 0;
}

/* ========================================
   TABS
   ======================================== */

.tabs {
    display: flex;
    gap: var(--space-1);
    border-bottom: 1px solid var(--border-default);
}

.tab {
    padding: var(--space-2) var(--space-4);
    background: transparent;
    border: none;
    border-bottom: 2px solid transparent;
    color: var(--text-secondary);
    cursor: pointer;
    font-weight: var(--font-weight-medium);
    transition: all var(--duration-150) var(--ease-in-out);
    margin-bottom: -1px;
}

.tab:hover {
    color: var(--text-primary);
    background-color: var(--bg-secondary);
}

.tab.active {
    color: var(--color-primary);
    border-bottom-color: var(--color-primary);
}

.tab.disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

.tab-content {
    display: none;
    padding: var(--space-6) 0;
}

.tab-content.active {
    display: block;
    animation: fadeIn var(--duration-200) var(--ease-in-out);
}

/* ========================================
   PROGRESS BAR
   ======================================== */

.progress {
    width: 100%;
    height: 8px;
    background-color: var(--bg-tertiary);
    border-radius: var(--radius-full);
    overflow: hidden;
}

.progress-bar {
    height: 100%;
    background-color: var(--color-primary);
    border-radius: var(--radius-full);
    transition: width var(--duration-300) var(--ease-in-out);
}

.progress-bar.striped {
    background-image: linear-gradient(
        45deg,
        rgba(255, 255, 255, 0.15) 25%,
        transparent 25%,
        transparent 50%,
        rgba(255, 255, 255, 0.15) 50%,
        rgba(255, 255, 255, 0.15) 75%,
        transparent 75%,
        transparent
    );
    background-size: 1rem 1rem;
}

/* Progress variants */
.progress.success .progress-bar {
    background-color: var(--color-success);
}

.progress.warning .progress-bar {
    background-color: var(--color-warning);
}

.progress.error .progress-bar {
    background-color: var(--color-error);
}

/* ========================================
   SPINNER
   ======================================== */

.spinner {
    width: 24px;
    height: 24px;
    border: 3px solid var(--color-primary-200);
    border-top-color: var(--color-primary);
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

.spinner-sm {
    width: 16px;
    height: 16px;
    border-width: 2px;
}

.spinner-lg {
    width: 48px;
    height: 48px;
    border-width: 4px;
}

/* ========================================
   TOOLTIP
   ======================================== */

.tooltip {
    position: relative;
    display: inline-block;
}

.tooltip::after {
    content: attr(data-tooltip);
    position: absolute;
    bottom: calc(100% + var(--space-2));
    left: 50%;
    transform: translateX(-50%);
    padding: var(--space-1) var(--space-2);
    background-color: var(--color-neutral-800);
    color: white;
    font-size: var(--font-size-xs);
    white-space: nowrap;
    border-radius: var(--radius-sm);
    z-index: var(--z-tooltip);
    opacity: 0;
    visibility: hidden;
    transition: all var(--duration-150) var(--ease-in-out);
    pointer-events: none;
}

.tooltip:hover::after {
    opacity: 1;
    visibility: visible;
}

.tooltip.top::after {
    bottom: auto;
    top: calc(100% + var(--space-2));
}

.tooltip.right::after {
    left: calc(100% + var(--space-2));
    top: 50%;
    transform: translateY(-50%);
}

.tooltip.bottom::after {
    top: calc(100% + var(--space-2));
}

.tooltip.left::after {
    right: calc(100% + var(--space-2));
    left: auto;
    top: 50%;
    transform: translateY(-50%);
}

/* ========================================
   CHAT COMPONENT
   ======================================== */

.chat-container {
    display: flex;
    flex-direction: column;
    height: 100%;
}

.chat-messages {
    flex: 1;
    overflow-y: auto;
    padding: var(--space-4);
}

.chat-message {
    display: flex;
    gap: var(--space-3);
    margin-bottom: var(--space-4);
}

.chat-message.user {
    flex-direction: row-reverse;
}

.chat-avatar {
    width: 40px;
    height: 40px;
    border-radius: var(--radius-full);
    flex-shrink: 0;
}

.chat-bubble {
    max-width: 70%;
    padding: var(--space-3) var(--space-4);
    border-radius: var(--radius-lg);
    word-wrap: break-word;
}

.chat-message.ai .chat-bubble {
    background-color: var(--bg-secondary);
    color: var(--text-primary);
}

.chat-message.user .chat-bubble {
    background-color: var(--color-primary);
    color: white;
}

.chat-input-area {
    padding: var(--space-4);
    border-top: 1px solid var(--border-default);
}

.chat-input-wrapper {
    display: flex;
    gap: var(--space-2);
}

.chat-input-wrapper input {
    flex: 1;
}

/* ========================================
   DIVIDER
   ======================================== */

.divider {
    width: 100%;
    height: 1px;
    background-color: var(--border-default);
    margin: var(--space-6) 0;
}

.divider.vertical {
    width: 1px;
    height: 100%;
    margin: 0 var(--space-6);
}

.divider.with-text {
    display: flex;
    align-items: center;
    gap: var(--space-4);
}

.divider.with-text::before,
.divider.with-text::after {
    content: "";
    flex: 1;
    height: 1px;
    background-color: var(--border-default);
}

.divider-text {
    color: var(--text-tertiary);
    font-size: var(--font-size-sm);
    white-space: nowrap;
}

/* ========================================
   EMPTY STATE
   ======================================== */

.empty-state {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: var(--space-16);
    text-align: center;
}

.empty-state-icon {
    font-size: 64px;
    margin-bottom: var(--space-6);
    opacity: 0.5;
}

.empty-state-title {
    font-size: var(--font-size-lg);
    font-weight: var(--font-weight-semibold);
    color: var(--text-primary);
    margin-bottom: var(--space-2);
}

.empty-state-description {
    font-size: var(--font-size-base);
    color: var(--text-secondary);
    margin-bottom: var(--space-6);
}

.empty-state-action {
    margin-top: var(--space-4);
}