/* Professional UI Enhancements */
:root {
    --primary-color: #3B82F6;
    --secondary-color: #14B8A6;
    --dark-color: #1e293b;
    --light-color: #f8fafc;
    --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
    --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.1), 0 2px 4px -2px rgb(0 0 0 / 0.1);
    --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.1), 0 4px 6px -4px rgb(0 0 0 / 0.1);
}

body {
    font-family: 'Inter', system-ui, -apple-system, sans-serif;
    color: #334155;
    line-height: 1.6;
}

/* Feature: Slider */
.hero-slider {
    position: relative;
    overflow: hidden;
    height: 600px;
}
.hero-slide {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    opacity: 0;
    transition: opacity 0.5s ease-in-out;
    background-size: cover;
    background-position: center;
    display: flex;
    align-items: center;
    justify-content: center;
}
.hero-slide.active {
    opacity: 1;
}
.hero-overlay {
    background: rgba(0, 0, 0, 0.5);
    position: absolute;
    top: 0; left: 0; right: 0; bottom: 0;
}
.hero-content {
    position: relative;
    z-index: 10;
    text-align: center;
    color: white;
    max-width: 800px;
    padding: 20px;
}
.hero-title {
    font-size: 3.5rem;
    font-weight: 800;
    margin-bottom: 1rem;
    text-shadow: 0 2px 4px rgba(0,0,0,0.3);
}
.hero-desc {
    font-size: 1.25rem;
    margin-bottom: 2rem;
    text-shadow: 0 1px 2px rgba(0,0,0,0.3);
}

/* Feature: Cards & Hover Effects */
.service-card {
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}
.service-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
}

/* Feature: FAQ */
.faq-item {
    border-bottom: 1px solid #e2e8f0;
}
.faq-question {
    padding: 1.5rem 0;
    cursor: pointer;
    font-weight: 600;
    display: flex;
    justify-content: space-between;
    align-items: center;
}
.faq-answer {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s ease-out;
    color: #64748b;
}
.faq-item.active .faq-answer {
    max-height: 500px;
    padding-bottom: 1.5rem;
}

/* Feature: Team */
.team-card img {
    filter: grayscale(100%);
    transition: filter 0.3s ease;
}
.team-card:hover img {
    filter: grayscale(0%);
}

/* Feature: Gallery */
.gallery-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 1.5rem;
}
.gallery-item {
    position: relative;
    border-radius: 0.5rem;
    overflow: hidden;
    aspect-ratio: 4/3;
    group: relative;
}
.gallery-item img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.5s ease;
}
.gallery-item:hover img {
    transform: scale(1.1);
}

/* Feature: Brands Slider */
.brands-slider {
    display: flex;
    gap: 3rem;
    overflow-x: hidden;
    padding: 2rem 0;
    background: white;
}
.brand-item img {
    height: 50px;
    opacity: 0.6;
    transition: opacity 0.3s;
}
.brand-item:hover img {
    opacity: 1;
}

/* Popup */
.popup-overlay {
    position: fixed;
    top: 0; left: 0; right: 0; bottom: 0;
    background: rgba(0,0,0,0.7);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 1000;
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s;
}
.popup-overlay.active {
    opacity: 1;
    visibility: visible;
}
.popup-content {
    background: white;
    padding: 2rem;
    border-radius: 1rem;
    max-width: 500px;
    width: 90%;
    position: relative;
    transform: scale(0.9);
    transition: transform 0.3s;
}
.popup-overlay.active .popup-content {
    transform: scale(1);
}
.popup-close {
    position: absolute;
    top: 1rem;
    right: 1rem;
    cursor: pointer;
    font-size: 1.5rem;
    color: #94a3b8;
}

/* Animations */
@keyframes fadeIn {
    from { opacity: 0; transform: translateY(20px); }
    to { opacity: 1; transform: translateY(0); }
}
.animate-fade-in {
    animation: fadeIn 0.8s ease-out forwards;
}