body {
    font-family: 'Noto Sans', Arial, sans-serif;
    margin: 0;
    padding: 0;
    background-color: #f8f8f8;
    background-image: radial-gradient(#d3d3d3 1px, transparent 1px);
    background-size: 20px 20px;
    color: #212529;
}

.container p, .container li, .container a, .container .intro-text {
    text-shadow: 0px 1px 1px rgba(0, 0, 0, 0.3);
}

.container {
    max-width: 1100px;
    margin: 80px auto 40px auto;
    padding: 0 20px;
}

.top-bar {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    background-color: #2a3a5a;
    padding: 10px 20px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 60px;
    z-index: 1000;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.4);
    border-bottom: 2px solid #5a7ea8;
}


.intro {
    display: flex;
    flex-wrap: wrap;
    gap: 40px;
    margin-bottom: 50px;
    align-items: center;
    justify-content: space-between;
}

.intro-text {
    flex: 1;
    font-size: 1.2rem;
    line-height: 1.6;
}

.terminal-container {
    flex: 1;
    display: flex;
    justify-content: center;
}

.terminal {
    background-color: #1c1c1c;
    color: #00ff00;
    font-family: monospace;
    padding: 20px;
    width: 100%;
    max-width: 360px;
    height: auto;
    box-shadow: 0 8px 20px rgba(0, 0, 0, 0.7),
    inset 0 0 10px rgba(0, 255, 0, 0.5);
}

.code {
    white-space: pre;
    font-size: 14px;
}

.containers-box {
    display: flex;
    flex-wrap: wrap;
    gap: 20px;
    justify-content: center;
}

.download-section,
.about-section,
.test-section {
    flex: 1 1 300px;
    background: #fdfdff;
    border-radius: 10px;
    padding: 20px;
    border: 1px solid #ccc;
    box-shadow: 0 2px 3px rgba(0, 0, 0, 0.1),
    inset 0 1px 0 rgba(255, 255, 255, 0.8),
    inset 0 -1px 0 rgba(0, 0, 0, 0.1);
    text-align: center;
    transition: all 0.1s ease-out;
}

.download-section:hover,
.about-section:hover,
.test-section:hover {
    transform: translateY(1px);
    box-shadow: 0 1px 2px rgba(0, 0, 0, 0.15),
    inset 0 1px 0 rgba(255, 255, 255, 0.8),
    inset 0 -1px 0 rgba(0, 0, 0, 0.1);
}

.download-section h2,
.about-section h2,
.test-section h2 {
    font-size: 1.3rem;
    margin-bottom: 12px;
    text-shadow: 0px 1px 1px rgba(0, 0, 0, 0.3);
}

.btn {
    background: linear-gradient(to bottom, #4a6bae, #3a5ba0);
    color: #fff;
    border: 1px solid #1a2a4a;
    border-radius: 6px;
    padding: 12px 26px;
    font-size: 15px;
    cursor: pointer;
    text-decoration: none;
    display: inline-block;
    transition: all 0.1s ease-out;

    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.3),
    inset 0 1px 0 rgba(255, 255, 255, 0.4),
    inset 0 -1px 0 rgba(0, 0, 0, 0.2);

    text-shadow: 0px 1px 1px rgba(0, 0, 0, 0.5);
}

.btn:hover {
    background: linear-gradient(to bottom, #5a7ebd, #4a6bae);
    box-shadow: 0 5px 8px rgba(0, 0, 0, 0.4),
    inset 0 1px 0 rgba(255, 255, 255, 0.5),
    inset 0 -1px 0 rgba(0, 0, 0, 0.3);
    transform: translateY(-1px);
}

.btn:active {
    background: linear-gradient(to bottom, #3a5ba0, #4a6bae);
    box-shadow: 0 1px 2px rgba(0, 0, 0, 0.2),
    inset 0 1px 0 rgba(0, 0, 0, 0.1),
    inset 0 -1px 0 rgba(255, 255, 255, 0.3);
    transform: translateY(1px);
}

.caixaazulmassa {
    background-color: #4e7ac8;
    border-radius: 0px;
    padding: 30px;
    margin-bottom: 40px;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
    display: flex;
    flex-wrap: wrap;
    gap: 20px;
    width: 100;
    box-sizing: border-box;
    border: 1px solid rgba(255, 255, 255, 0.3);
}

.logo-image {
    height: auto;
    width: auto;
    max-height: 100px;
    max-width: 100%;
    filter: drop-shadow(3px 3px 5px rgba(0, 0, 0, 0.6));
}

@media screen and (max-width: 768px) {
    .intro {
        flex-direction: column;
        text-align: center;
    }

    .terminal {
        width: 100%;
    }
}