/* ============================================================================
   PORTFOLIO SECTION CSS for dubrovin.kz (#portfolio)
   Секция "Портфолио" с каруселью проектов
   ============================================================================ */

.portfolio {
    background-color: var(--bg-secondary);
    position: relative;
}

.portfolio h2 {
    text-align: center;
    margin-bottom: var(--spacing-3xl);
    color: var(--text-primary);
    font-size: var(--font-size-3xl);
    font-weight: var(--font-weight-bold);
    position: relative;
}

/* Декоративная линия под заголовком */
.portfolio h2::after {
    content: '';
    position: absolute;
    bottom: -var(--spacing-md);
    left: 50%;
    transform: translateX(-50%);
    width: 60px;
    height: 4px;
    background: linear-gradient(90deg, var(--primary), var(--primary-light));
    border-radius: 2px;
}

/* Carousel Container */
.portfolio__carousel-container {
    max-width: 1000px;
    margin: 0 auto;
    position: relative;
}

.portfolio__carousel {
    position: relative;
    overflow: hidden;
    border-radius: var(--border-radius);
    background-color: var(--bg-primary);
    box-shadow: var(--shadow);
    border: 1px solid var(--border);
}

.portfolio__slides {
    display: flex;
    transition: transform var(--transition);
    will-change: transform;
}

/* Слайды */
.portfolio-slide {
    min-width: 100%;
    display: flex;
    flex-direction: column;
}

.portfolio-slide__content {
    padding: var(--spacing-2xl);
    display: flex;
    flex-direction: column;
    gap: var(--spacing-lg);
    min-height: 300px;
}

.portfolio-slide__image {
    width: 100%;
    height: 200px;
    border-radius: var(--border-radius);
    overflow: hidden;
    background-color: var(--bg-secondary);
    display: flex;
    align-items: center;
    justify-content: center;
}

.portfolio-slide__image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform var(--transition);
}

.portfolio-slide__image:hover img {
    transform: scale(1.05);
}

.portfolio-slide__text {
    flex-grow: 1;
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
}

.portfolio-slide__text h3 {
    font-size: var(--font-size-2xl);
    font-weight: var(--font-weight-semibold);
    color: var(--text-primary);
    margin: 0;
    line-height: var(--line-height-tight);
}

.portfolio-slide__text h3 a {
    color: inherit;
    text-decoration: none;
    transition: color var(--transition);
    position: relative;
}

.portfolio-slide__text h3 a::after {
    content: ' ↗';
    font-size: 0.8em;
    opacity: 0.6;
    transition: opacity var(--transition);
}

.portfolio-slide__text h3 a:hover {
    color: var(--primary);
}

.portfolio-slide__text h3 a:hover::after {
    opacity: 1;
}

.portfolio-slide__text p {
    font-size: var(--font-size-lg);
    line-height: var(--line-height-relaxed);
    color: var(--text-secondary);
    margin: 0;
    flex-grow: 1;
}

/* Технологии */
.portfolio-slide__tech {
    font-size: var(--font-size-sm);
    font-weight: var(--font-weight-medium);
    color: var(--primary);
    background-color: rgba(30, 64, 175, 0.1);
    padding: var(--spacing-xs) var(--spacing-sm);
    border-radius: calc(var(--border-radius) / 2);
    border: 1px solid rgba(30, 64, 175, 0.2);
    text-transform: uppercase;
    letter-spacing: 0.025em;
    display: inline-block;
    align-self: flex-start;
}

/* Навигация */
.portfolio__nav {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    background: rgba(0, 0, 0, 0.7);
    color: white;
    border: none;
    width: 40px;
    height: 40px;
    border-radius: 50%;
    font-size: var(--font-size-xl);
    font-weight: bold;
    cursor: pointer;
    transition: all var(--transition);
    z-index: 10;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0.8;
}

.portfolio__nav:hover {
    background: rgba(0, 0, 0, 0.9);
    opacity: 1;
    transform: translateY(-50%) scale(1.1);
}

.portfolio__nav--prev {
    left: var(--spacing-md);
}

.portfolio__nav--next {
    right: var(--spacing-md);
}

/* Индикаторы */
.portfolio__indicators {
    display: flex;
    justify-content: center;
    gap: var(--spacing-sm);
    margin-top: var(--spacing-lg);
}

.portfolio__indicator {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    border: 2px solid var(--border);
    background: transparent;
    cursor: pointer;
    transition: all var(--transition);
    opacity: 0.6;
}

.portfolio__indicator:hover,
.portfolio__indicator.active {
    background: var(--primary);
    border-color: var(--primary);
    opacity: 1;
}

/* Пустое состояние */
.portfolio__empty {
    text-align: center;
    padding: var(--spacing-3xl);
    color: var(--text-secondary);
    font-size: var(--font-size-lg);
}

/* Анимации */
@keyframes portfolioSlideIn {
    from {
        opacity: 0;
        transform: translateY(40px) scale(0.95);
    }
    to {
        opacity: 1;
        transform: translateY(0) scale(1);
    }
}

@keyframes portfolioFadeIn {
    from {
        opacity: 0;
    }
    to {
        opacity: 1;
    }
}

.portfolio h2.animate {
    animation: portfolioFadeIn 0.8s ease-out;
}

.portfolio__carousel.animate {
    animation: portfolioSlideIn 0.7s ease-out;
}

/* Адаптивность */
@media (min-width: 768px) {
    .portfolio-slide__content {
        flex-direction: row;
        align-items: center;
        gap: var(--spacing-2xl);
        padding: var(--spacing-3xl);
        min-height: 350px;
    }
    
    .portfolio-slide__image {
        width: 40%;
        height: 250px;
        flex-shrink: 0;
    }
    
    .portfolio-slide__text {
        width: 60%;
        gap: var(--spacing-lg);
    }
    
    .portfolio-slide__text h3 {
        font-size: var(--font-size-3xl);
    }
    
    .portfolio-slide__text p {
        font-size: var(--font-size-xl);
    }
    
    .portfolio__nav {
        width: 50px;
        height: 50px;
        font-size: var(--font-size-2xl);
    }
    
    .portfolio__nav--prev {
        left: var(--spacing-lg);
    }
    
    .portfolio__nav--next {
        right: var(--spacing-lg);
    }
}

@media (min-width: 1024px) {
    .portfolio h2 {
        font-size: var(--font-size-4xl);
    }
    
    .portfolio-slide__content {
        padding: var(--spacing-4xl);
        min-height: 400px;
    }
    
    .portfolio-slide__image {
        height: 300px;
    }
}

/* Темная тема */
[data-theme="dark"] .portfolio__carousel {
    background-color: var(--bg-primary);
    border-color: var(--border);
}

[data-theme="dark"] .portfolio__nav {
    background: rgba(255, 255, 255, 0.1);
    color: var(--text-primary);
}

[data-theme="dark"] .portfolio__nav:hover {
    background: rgba(255, 255, 255, 0.2);
}

/* Отключение анимации */
@media (prefers-reduced-motion: reduce) {
    .portfolio h2.animate,
    .portfolio__carousel.animate {
        animation: none;
    }
    
    .portfolio__slides {
        transition: none;
    }
    
    .portfolio__nav:hover {
        transform: translateY(-50%);
    }
    
    .portfolio-slide__image:hover img {
        transform: none;
    }
}

/* Высокий контраст */
@media (prefers-contrast: high) {
    .portfolio__carousel {
        border: 2px solid var(--text-primary);
    }
    
    .portfolio__nav {
        border: 2px solid var(--text-primary);
    }
    
    .portfolio__indicator {
        border-width: 3px;
    }
}