/**
 * Компоненты UI
 * Кнопки, формы, карточки, чекбоксы и другие элементы
 */

/* === Кнопки === */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 12px 24px;
    font-family: var(--font-primary);
    font-size: 1rem;
    font-weight: 500;
    text-decoration: none;
    border: none;
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: all var(--transition-base);
    position: relative;
    overflow: hidden;
}

.btn:disabled {
    opacity: 0.6;
    cursor: not-allowed;
}

/* Основная кнопка */
.btn-primary {
    background: var(--gradient-primary);
    color: white;
    box-shadow: var(--shadow-md);
}

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

.btn-primary:active:not(:disabled) {
    transform: translateY(0);
}

/* Вторичная кнопка */
.btn-secondary {
    background: var(--bg-card);
    color: var(--text-primary);
    border: 1px solid var(--border-color);
}

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

/* Контурная кнопка */
.btn-outline {
    background: transparent;
    color: var(--color-primary);
    border: 2px solid var(--color-primary);
}

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

/* Призрачная кнопка */
.btn-ghost {
    background: transparent;
    color: var(--text-secondary);
}

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

/* Размеры кнопок */
.btn-sm {
    padding: 8px 16px;
    font-size: 0.875rem;
}

.btn-lg {
    padding: 16px 32px;
    font-size: 1.125rem;
}

/* Кнопка на всю ширину */
.btn-block {
    width: 100%;
}

/* === Карточки === */
.card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: 24px;
    transition: all var(--transition-base);
}

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

.card-header {
    margin-bottom: 16px;
}

.card-title {
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 8px;
}

.card-subtitle {
    font-size: 0.9rem;
    color: var(--text-muted);
}

.card-body {
    color: var(--text-secondary);
    line-height: 1.7;
}

.card-footer {
    margin-top: 20px;
    padding-top: 16px;
    border-top: 1px solid var(--border-color);
}

/* Карточка проекта */
.project-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-xl);
    overflow: hidden;
    transition: all var(--transition-base);
    padding: 15px;
}

.project-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-xl);
    border-color: var(--color-primary);
}

.project-card-image {
    width: 100%;
    aspect-ratio: 16/9;
    object-fit: cover;
    background: var(--bg-secondary);
}

.project-card-content {
    padding: 24px;
}

.project-card-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-top: 16px;
}

/* === Формы === */
.form-group {
    margin-bottom: 20px;
}

.form-label {
    display: block;
    margin-bottom: 8px;
    font-weight: 500;
    color: var(--text-primary);
    font-size: 0.95rem;
}

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

.form-input,
.form-textarea,
.form-select {
    width: 100%;
    padding: 12px 16px;
    font-family: var(--font-primary);
    font-size: 1rem;
    color: var(--text-primary);
    background: var(--bg-input);
    border: 2px solid var(--border-color);
    border-radius: var(--radius-md);
    transition: all var(--transition-base);
    outline: none;
}

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

.form-input:focus,
.form-textarea:focus,
.form-select:focus {
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px var(--color-primary-bg);
}

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

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

.form-select {
    cursor: pointer;
    appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='24' height='24' viewBox='0 0 24 24' fill='none' stroke='%2364748b' 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 12px center;
    background-size: 20px;
    padding-right: 44px;
}

/* Ошибка формы */
.form-input.error,
.form-textarea.error,
.form-select.error {
    border-color: var(--color-error);
}

.form-error {
    color: var(--color-error);
    font-size: 0.875rem;
    margin-top: 6px;
}

/* Подсказка формы */
.form-hint {
    color: var(--text-muted);
    font-size: 0.85rem;
    margin-top: 6px;
}

/* === Чекбоксы === */
.checkbox-wrapper {
    display: flex;
    align-items: center;
    gap: 12px;
    cursor: pointer;
}

.checkbox-input {
    position: absolute;
    opacity: 0;
    width: 0;
    height: 0;
}

.checkbox-custom {
    width: 22px;
    height: 22px;
    background: var(--bg-input);
    border: 2px solid var(--border-color);
    border-radius: var(--radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all var(--transition-base);
    flex-shrink: 0;
}

.checkbox-custom::after {
    content: '';
    width: 6px;
    height: 10px;
    border: solid white;
    border-width: 0 2px 2px 0;
    transform: rotate(45deg) scale(0);
    transition: transform var(--transition-fast);
}

.checkbox-input:hover + .checkbox-custom {
    border-color: var(--color-primary);
}

.checkbox-input:checked + .checkbox-custom {
    background: var(--color-primary);
    border-color: var(--color-primary);
}

.checkbox-input:checked + .checkbox-custom::after {
    transform: rotate(45deg) scale(1);
}

.checkbox-input:focus + .checkbox-custom {
    box-shadow: 0 0 0 3px var(--color-primary-bg);
}

.checkbox-label {
    color: var(--text-secondary);
    font-size: 0.95rem;
    user-select: none;
}

/* === Переключатели (Toggle) === */
.toggle-wrapper {
    display: flex;
    align-items: center;
    gap: 12px;
    cursor: pointer;
}

.toggle-input {
    position: absolute;
    opacity: 0;
    width: 0;
    height: 0;
}

.toggle-custom {
    width: 48px;
    height: 26px;
    background: var(--bg-tertiary);
    border: 2px solid var(--border-color);
    border-radius: var(--radius-full);
    position: relative;
    transition: all var(--transition-base);
    flex-shrink: 0;
}

.toggle-custom::after {
    content: '';
    position: absolute;
    top: 2px;
    left: 2px;
    width: 18px;
    height: 18px;
    background: var(--text-muted);
    border-radius: 50%;
    transition: all var(--transition-base);
}

.toggle-input:checked + .toggle-custom {
    background: var(--color-primary-bg);
    border-color: var(--color-primary);
}

.toggle-input:checked + .toggle-custom::after {
    left: calc(100% - 20px);
    background: var(--color-primary);
}

.toggle-input:focus + .toggle-custom {
    box-shadow: 0 0 0 3px var(--color-primary-bg);
}

/* === Badges === */
.badge {
    display: inline-flex;
    align-items: center;
    padding: 4px 10px;
    font-size: 0.75rem;
    font-weight: 600;
    border-radius: var(--radius-full);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

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

.badge-success {
    background: rgba(16, 185, 129, 0.15);
    color: var(--color-success);
}

.badge-warning {
    background: rgba(245, 158, 11, 0.15);
    color: var(--color-warning);
}

.badge-error {
    background: rgba(239, 68, 68, 0.15);
    color: var(--color-error);
}

/* === Сетка для карточек === */
.cards-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 24px;
}

.cards-grid-2 {
    grid-template-columns: repeat(2, 1fr);
}

.cards-grid-3 {
    grid-template-columns: repeat(3, 1fr);
}

@media (max-width: 1024px) {
    .cards-grid-3 {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    .cards-grid,
    .cards-grid-2,
    .cards-grid-3 {
        grid-template-columns: 1fr;
    }
}

/* === Алерты === */
.alert {
    padding: 16px 20px;
    border-radius: var(--radius-md);
    display: flex;
    align-items: flex-start;
    gap: 12px;
}

.alert-icon {
    font-size: 1.25rem;
    flex-shrink: 0;
}

.alert-content {
    flex: 1;
}

.alert-title {
    font-weight: 600;
    margin-bottom: 4px;
}

.alert-success {
    background: rgba(16, 185, 129, 0.1);
    border: 1px solid rgba(16, 185, 129, 0.3);
    color: var(--color-success);
}

.alert-error {
    background: rgba(239, 68, 68, 0.1);
    border: 1px solid rgba(239, 68, 68, 0.3);
    color: var(--color-error);
}

.alert-warning {
    background: rgba(245, 158, 11, 0.1);
    border: 1px solid rgba(245, 158, 11, 0.3);
    color: var(--color-warning);
}

.alert-info {
    background: var(--color-primary-bg);
    border: 1px solid var(--border-color);
    color: var(--color-primary);
}

/* === Список навыков === */
.skills-list {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
}

/* === Временная шкала (Timeline) === */
.timeline {
    position: relative;
    padding-left: 30px;
}

.timeline::before {
    content: '';
    position: absolute;
    left: 0;
    top: 0;
    bottom: 0;
    width: 2px;
    background: var(--border-color);
}

.timeline-item {
    position: relative;
    padding-bottom: 30px;
}

.timeline-item:last-child {
    padding-bottom: 0;
}

.timeline-item::before {
    content: '';
    position: absolute;
    left: -34px;
    top: 6px;
    width: 10px;
    height: 10px;
    background: var(--color-primary);
    border-radius: 50%;
    border: 2px solid var(--bg-primary);
}

.timeline-date {
    font-size: 0.85rem;
    color: var(--text-muted);
    margin-bottom: 8px;
}

.timeline-title {
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 4px;
}

.timeline-subtitle {
    font-size: 0.95rem;
    color: var(--color-primary);
    margin-bottom: 8px;
}

.timeline-content {
    color: var(--text-secondary);
    line-height: 1.6;
}

/* === Табы === */
.tabs {
    display: flex;
    gap: 4px;
    border-bottom: 2px solid var(--border-color);
    margin-bottom: 24px;
}

.tab {
    padding: 12px 20px;
    font-weight: 500;
    color: var(--text-muted);
    background: none;
    border: none;
    border-bottom: 2px solid transparent;
    margin-bottom: -2px;
    cursor: pointer;
    transition: all var(--transition-base);
}

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

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

.tab-content {
    display: none;
}

.tab-content.active {
    display: block;
    animation: fadeIn 0.3s ease;
}

/* === Аватар === */
.avatar {
    width: 48px;
    height: 48px;
    border-radius: 50%;
    object-fit: cover;
    border: 2px solid var(--border-color);
}

.avatar-sm { width: 32px; height: 32px; }
.avatar-lg { width: 80px; height: 80px; }
.avatar-xl { width: 120px; height: 120px; }

/* === Разделитель === */
.divider {
    height: 1px;
    background: var(--border-color);
    margin: 32px 0;
}

.divider-vertical {
    width: 1px;
    height: 24px;
    background: var(--border-color);
}