/* Variables */
:root {
    --primary-color: #2c2c2c;
    --secondary-color: #f5f5f5;
    --accent-color: #666666;
    --text-color: #2c2c2c;
    --light-bg: #f8f8f8;
    --white: #ffffff;
    --light-gray: #e8e8e8;
    --soft-grey: #888888;
    --gray-100: #f8f9fa;
    --gray-200: #e9ecef;
    --gray-300: #dee2e6;
    --gray-600: #6c757d;
    --shadow-sm: 0 2px 4px rgba(0,0,0,0.08);
    --shadow-md: 0 4px 12px rgba(0,0,0,0.1);
    --shadow-lg: 0 8px 25px rgba(0,0,0,0.15);
    --radius-sm: 4px;
    --radius-md: 8px;
    --radius-lg: 16px;
}

/* Product Main Content */
.product-main {
    padding: 7rem 5% 5rem;
    min-height: calc(100vh - 200px);
}

.product-container {
    max-width: 1400px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: 1fr 1fr;
    grid-template-areas: 
        "gallery info"
        "pricing info";
    gap: 3rem;
    background: var(--white);
    padding: 3rem;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
}

/* Product Gallery */
.product-gallery {
    grid-area: gallery;
    position: relative;
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.carousel-container {
    position: relative;
    overflow: hidden;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
    background: var(--white);
    height: 500px;
}

.carousel-track {
    display: flex;
    transition: transform 0.5s cubic-bezier(0.4, 0, 0.2, 1);
    height: 100%;
}

.carousel-slide {
    flex: 0 0 100%;
    position: relative;
    height: 100%;
}

.placeholder-image {
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, var(--light-gray), var(--accent-color));
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--primary-color);
    font-size: 1.4rem;
    font-weight: 600;
    text-shadow: none;
}

.carousel-button {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    background: var(--white);
    color: var(--primary-color);
    border: none;
    width: 44px;
    height: 44px;
    border-radius: 50%;
    cursor: pointer;
    opacity: 0.9;
    transition: all 0.3s ease;
    z-index: 2;
    box-shadow: var(--shadow-md);
}

.carousel-button:hover {
    opacity: 1;
    transform: translateY(-50%) scale(1.1);
    background: var(--primary-color);
    color: var(--white);
}

.carousel-button.prev {
    left: 1rem;
}

.carousel-button.next {
    right: 1rem;
}

.carousel-dots {
    position: absolute;
    bottom: 1.5rem;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    gap: 0.5rem;
    padding: 0.5rem 1rem;
    background: rgba(255, 255, 255, 0.9);
    border-radius: 20px;
    box-shadow: var(--shadow-sm);
}

.carousel-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: var(--gray-300);
    cursor: pointer;
    transition: all 0.3s ease;
}

.carousel-dot:hover {
    background: var(--secondary-color);
}

.carousel-dot.active {
    background: var(--primary-color);
    transform: scale(1.2);
}

/* Product Info */
.product-info {
    grid-area: info;
    display: flex;
    flex-direction: column;
    gap: 2rem;
}

.product-info h1 {
    color: var(--primary-color);
    font-size: 3rem;
    margin-bottom: 1.5rem;
    font-weight: 700;
    line-height: 1.2;
}

.product-description {
    color: var(--text-color);
}

.product-description p {
    font-size: 1.1rem;
    line-height: 1.7;
    margin-bottom: 2rem;
    color: var(--text-color);
}

/* Features and Maintenance Sections */
.features-section,
.maintenance-section {
    margin-bottom: 2rem;
    background: var(--gray-100);
    padding: 1.5rem;
    border-radius: var(--radius-md);
    border-left: 4px solid var(--accent-color);
}

.features-section h3,
.maintenance-section h3 {
    color: var(--primary-color);
    font-size: 1.4rem;
    margin-bottom: 1rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-weight: 600;
}

.features-section h3::before {
    content: "⭐";
    font-size: 1.2rem;
}

.maintenance-section h3::before {
    content: "⚙️";
    font-size: 1.2rem;
}

.features-section ul,
.maintenance-section ul {
    list-style: none;
    padding-left: 0;
    display: grid;
    gap: 0.75rem;
}

.features-section li,
.maintenance-section li {
    padding-left: 1.5rem;
    position: relative;
    color: var(--text-color);
    font-size: 1rem;
    line-height: 1.5;
}

.features-section li::before,
.maintenance-section li::before {
    content: "✓";
    position: absolute;
    left: 0;
    color: var(--accent-color);
    font-weight: bold;
    font-size: 1.1rem;
}

/* Price Section */
.price-section {
    grid-area: pricing;
    background: var(--gray-100);
    border-radius: var(--radius-md);
    padding: 2rem;
    border-left: 4px solid var(--accent-color);
    text-align: center;
    align-self: start;
}

.price-range-box {
    margin-bottom: 1.5rem;
}

.price-range {
    font-size: 2rem;
    color: var(--accent-color);
    font-weight: bold;
    display: block;
    margin-bottom: 0.5rem;
}

.price-note {
    font-size: 0.9rem;
    color: var(--gray-600);
    font-style: italic;
}

.book-now-btn {
    display: inline-block;
    padding: 1rem 2rem;
    background: var(--primary-color);
    color: var(--white);
    text-decoration: none;
    border-radius: var(--radius-md);
    font-weight: 600;
    font-size: 1.1rem;
    transition: all 0.3s ease;
    box-shadow: var(--shadow-md);
    border: 2px solid transparent;
}

.book-now-btn:hover {
    transform: translateY(-2px);
    background: var(--accent-color);
    box-shadow: var(--shadow-lg);
    border-color: rgba(255,255,255,0.3);
}

/* Booking Info */
.booking-info {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
    margin-top: 0.5rem;
}

.session-info {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    color: var(--gray-600);
    font-size: 1.1rem;
    padding: 0.75rem;
    background: var(--white);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-sm);
}

.session-info i {
    color: var(--accent-color);
}

.book-appointment-button {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.75rem;
    background: var(--primary-color);
    color: var(--white);
    padding: 1rem;
    border-radius: var(--radius-md);
    text-decoration: none;
    font-weight: 600;
    font-size: 1.1rem;
    transition: all 0.3s ease;
    text-align: center;
    box-shadow: var(--shadow-sm);
}

.book-appointment-button:hover {
    background: var(--accent-color);
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.book-appointment-button i {
    font-size: 1.2rem;
}

/* Responsive Design */
@media (max-width: 992px) {
    .product-container {
        grid-template-columns: 1fr;
        grid-template-areas:
            "gallery"
            "pricing"
            "info";
        gap: 2rem;
        padding: 2rem;
    }

    .carousel-container {
        height: 400px;
    }

    .product-info {
        padding: 0;
    }

    .product-info h1 {
        font-size: 2.5rem;
    }
}

@media (max-width: 768px) {
    .product-main {
        padding: 6rem 3% 3rem;
    }

    .product-container {
        padding: 1.5rem;
        gap: 1.5rem;
    }

    .product-info h1 {
        font-size: 2.2rem;
    }

    .carousel-container {
        height: 350px;
    }

    .price-range {
        font-size: 1.8rem;
    }

    .features-section,
    .maintenance-section {
        padding: 1rem;
    }

    .book-now-btn {
        padding: 0.9rem 1.8rem;
        font-size: 1rem;
    }
}

@media (max-width: 480px) {
    .product-container {
        padding: 1rem;
        gap: 1rem;
    }

    .carousel-container {
        height: 280px;
    }

    .carousel-button {
        width: 36px;
        height: 36px;
        font-size: 0.9rem;
    }

    .product-info h1 {
        font-size: 2rem;
    }

    .book-now-btn {
        padding: 0.8rem 1.5rem;
        font-size: 0.95rem;
        width: 100%;
    }

    .price-range {
        font-size: 1.6rem;
    }

    .features-section,
    .maintenance-section {
        padding: 0.8rem;
    }
}