body {
    font-family: 'Inter', sans-serif;
    background-color: #f4f6f9;
    color: #2c2c2c;
    margin: 0;
}

.hero {
    background: linear-gradient(135deg, #1e3c72, #2a5298);
    color: white;
    padding: 60px 30px;
    border-radius: 16px;
    text-align: center;
    margin-top: 20px;
}

.hero h1 {
    font-size: 2.6rem;
    margin-bottom: 10px;
}

.subtitle {
    font-size: 1.2rem;
    font-weight: 500;
}

.subtitle-light {
    font-size: 0.95rem;
    opacity: 0.85;
}

.navbar-custom {
    display: flex;
    justify-content: center;
    gap: 25px;
    background: white;
    padding: 15px;
    margin: 25px 0;
    border-radius: 12px;
    box-shadow: 0 5px 20px rgba(0,0,0,0.05);
}

.navbar-custom a {
    text-decoration: none;
    font-weight: 600;
    color: #2a5298;
}

.navbar-custom a:hover {
    text-decoration: underline;
}

.card-section {
    background: white;
    padding: 35px;
    border-radius: 16px;
    margin-bottom: 35px;
    box-shadow: 0 8px 25px rgba(0,0,0,0.06);
}

.card-section h2 {
    color: #1e3c72;
    margin-bottom: 25px;
}

.project-card {
    border-left: 4px solid #2a5298;
    padding: 15px 20px;
    margin-bottom: 15px;
}

.stage-card {
    background: #f8f9fc;
    padding: 20px;
    border-radius: 12px;
    height: 100%;
}

.skills-grid {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
}

.skill {
    text-align: center;
    background: #eef2ff;
    padding: 10px 18px;
    border-radius: 8px;
    font-weight: 500;
    
}

.btn-primary {
    display: inline-block;
    background: #2a5298;
    color: white;
    padding: 12px 24px;
    border-radius: 10px;
    font-weight: 600;
    text-decoration: none;
}

.btn-primary:hover {
    background: #1e3c72;
}

footer {
    text-align: center;
    padding: 20px;
    color: #777;
}