body {
    font-family: 'Rubik', sans-serif;
    background: linear-gradient(135deg, #74ebd5, #ACB6E5);
    padding-top: 80px;
    scroll-behavior: smooth;
}

.container-custom {
    background-color: rgba(255, 255, 255, 0.95);
    border-radius: 20px;
    padding: 2rem;
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.1);
    margin-top: 3rem;
}

.projetos-wrapper {
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: 2rem;
}

.projeto-card {
    background: white;
    border-radius: 16px;
    padding: 1.5rem;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
    flex: 1 1 280px;
    max-width: 320px;
    transition: transform 0.3s ease;
}

.projeto-card:hover {
    transform: scale(1.05);
}

#topBtn {
    position: fixed;
    bottom: 30px;
    right: 30px;
    background: #2c6ed5;
    color: white;
    border: none;
    border-radius: 50%;
    width: 50px;
    height: 50px;
    font-size: 1.4rem;
    display: none;
}

.dark-mode {
    background: #121212 !important;
    color: white !important;
}

.dark-mode .container-custom {
    background-color: rgba(30, 30, 30, 0.95);
    color: white;
}

.dark-mode .projeto-card {
    background-color: #1e1e1e;
    color: white;
}

.dark-mode input,
.dark-mode textarea {
    background-color: #333;
    color: white;
    border: 1px solid #555;
}