:root {
    --azul-escuro: #0a4c5f;
    --azul-medio: #0f6f87;
    --azul-claro: #2bbcd6;
    --cinza: #f2f5f7;
    --branco: #ffffff;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Poppins', sans-serif;
}

body {
    background: linear-gradient(180deg, #eaf6fa, #ffffff);
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

header {
    text-align: center;
    padding: 40px 20px;
}

header img {
    max-width: 500px;
    margin-bottom: 15px;
}

header h1 {
    color: var(--azul-escuro);
    font-weight: 400;
        margin-top: -120px;
}

.container {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 25px;
    padding: 40px;
    max-width: 900px;
    margin: auto;
    width: 100%;
}

.card {
    background: var(--branco);
    border-radius: 18px;
    padding: 40px 20px;
    text-align: center;
    text-decoration: none;
    color: var(--azul-escuro);
    box-shadow: 0 10px 25px rgba(0,0,0,0.08);
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
}

.card::before {
    content: "";
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, var(--azul-medio), var(--azul-claro));
    opacity: 0;
    transition: 0.3s;
}

.card i {
    font-size: 48px;
    margin-bottom: 15px;
    position: relative;
    z-index: 1;
}

.card span {
    font-size: 18px;
    font-weight: 500;
    position: relative;
    z-index: 1;
}

.card:hover {
    transform: translateY(-8px);
    color: var(--branco);
}

.card:hover::before {
    opacity: 1;
}

.disabled {
    pointer-events: none;
    opacity: 0.5;
}

footer {
    text-align: center;
    padding: 20px;
    font-size: 14px;
    color: #666;
}