/* RESET */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: system-ui, -apple-system, "Segoe UI", sans-serif;
    background: #f6f7fb;
    color: #1f2937;
    line-height: 1.7;
}

/* LAYOUT */
.container {
    max-width: 1100px;
    margin: auto;
    padding: 40px 20px;
}

/* HEADER */
.page-header {
    background: #ffffff;
    border-bottom: 1px solid #e5e7eb;
}

.page-title {
    font-size: 2.6rem;
    font-weight: 700;
}

.page-subtitle {
    color: #032f88;
    font-size: 20px;
    font-weight: 700;
}

/* CARDS */
.expertise-card {
    background: #ffffff;
    padding: 36px;
    border-radius: 18px;
    margin-bottom: 40px;
    box-shadow: 0 12px 28px rgba(0,0,0,0.06);
}

.card-header {
    display: flex;
    align-items: center;
    gap: 14px;
    margin-bottom: 20px;
}

.icon {
    width: 44px;
    height: 44px;
    border-radius: 12px;
    background: #eef2ff;
    color: #4f46e5;
    display: flex;
    align-items: center;
    justify-content: center;
}

/* TEXT */
.expertise-description {
    color: #4b5563;
    margin-bottom: 24px;
    font-weight: 500;
    font-size: large;
}

h2 {
    font-size: 1.5rem;
    color: rgb(38, 0, 255);
}

h3 {
    margin-bottom: 14px;
}

/* SKILLS */
.skills {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
}

.skills span {
    background: #f1f5f9;
    padding: 8px 14px;
    border-radius: 999px;
    font-size: 0.9rem;
    display: flex;
    align-items: center;
    gap: 6px;
    color: #011530;
}

/* PORTFOLIO */
.portfolio {
    margin-top: 60px;
}

.portfolio h3 {
    margin-bottom: 22px;
}

.portfolio-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 22px;
}

.portfolio-card {
    background: #ffffff;
    padding: 26px;
    border-radius: 18px;
    box-shadow: 0 10px 25px rgba(0,0,0,0.06);
    transition: transform .25s ease;
}

.portfolio-card:hover {
    transform: translateY(-4px);
}

.portfolio-card h4 {
    font-size: 1.1rem;
    margin-bottom: 8px;
}

.portfolio-card p {
    color: #4b5563;
    font-weight: 600;
    margin-bottom: 12px;
}

.portfolio-card a {
    font-weight: 500;
    color: #4f46e5;
    text-decoration: none;
}

.guide-link {
    padding-right: 50px;
}

/* RESPONSIVE */
@media (max-width: 768px) {
    .portfolio-grid {
        grid-template-columns: 1fr;
    }

    .page-title {
        font-size: 2.1rem;
    }
}