:root {
    --psn-primary: #0d6efd;
    --psn-dark: #121212;
    --psn-light: #f8f9fa;
}

body {
    font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
    background-color: #ffffff;
    color: #212529;
}

/* Hero section */
.hero {
    min-height: 70vh;
    display: flex;
    align-items: center;
    background: radial-gradient(circle at top left, #0d6efd33, transparent),
                linear-gradient(135deg, #f8f9fa, #e9ecef);
}

.hero h1 span.highlight {
    color: var(--psn-primary);
}

/* Cards */
.card-service {
    transition: transform .2s ease, box-shadow .2s ease;
}

.card-service:hover {
    transform: translateY(-4px);
    box-shadow: 0 0.75rem 1.5rem rgba(0, 0, 0, 0.12);
}

/* Portfolio */
.portfolio-item {
    overflow: hidden;
    border-radius: 0.5rem;
    position: relative;
}

.portfolio-item img {
    transition: transform .3s ease;
}

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

.portfolio-overlay {
    position: absolute;
    inset: 0;
    background: rgba(0, 0, 0, .6);
    color: #fff;
    opacity: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    padding: 1rem;
    transition: opacity .3s ease;
}

.portfolio-item:hover .portfolio-overlay {
    opacity: 1;
}

/* Forms */
.form-control:focus {
    box-shadow: 0 0 0 0.15rem rgba(13, 110, 253, 0.25);
}

/* Section spacing */
.section-padding {
    padding-top: 4rem;
    padding-bottom: 4rem;
}

/* Navbar */
.navbar-brand img {
    filter: drop-shadow(0 0 3px rgba(0,0,0,0.4));
}