@import url('https://cdn.jsdelivr.net/npm/et-book@1.0.0/et-book.css');

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

body {
    background-color: #0b0f0f; 
    color: #DCF5F5; 
    font-family: 'et-book', serif;
    display: flex;
    justify-content: center;
    align-items: center;
    height: 100vh;
}

.dashboard {
    background-color: #111a1a;
    padding: 2rem;
    border-radius: 4px;
    border: 1px solid #55CFCF;
    box-shadow: 0 0 20px rgba(85, 207, 207, 0.1);
    width: 95%;
    max-width: 900px;
}

header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1.5rem;
    border-bottom: 1px solid rgba(85, 207, 207, 0.3);
    padding-bottom: 1rem;
}

h1 { 
    color: #55CFCF;
    font-weight: normal;
    letter-spacing: 2px;
}

.oscilloscope-container {
    background-color: #050808;
    border: 2px solid #55CFCF;
    border-radius: 4px;
    box-shadow: 0 0 15px rgba(85, 207, 207, 0.4), inset 0 0 20px rgba(85, 207, 207, 0.15);
    margin-bottom: 2rem;
    overflow: hidden;
}

canvas { 
    width: 100%;
    height: 300px;
    display: block;
}

.control-panel { 
    display: flex;
    justify-content: space-between;
    gap: 1rem;
}

.signal-box {
    flex: 1;
    background-color: rgba(85, 207, 207, 0.05);
    padding: 1rem;
    border: 1px solid rgba(85, 207, 207, 0.3);
    border-radius: 4px;
    display: flex;
    flex-direction: column;
    gap: 0.8rem;
}

h3 { 
    color: #55CFCF;
    font-size: 1.1rem;
    font-weight: normal;
}

select, input {
    background-color: #0b0f0f;
    color: #DCF5F5;
    border: 1px solid #55CFCF;
    padding: 0.5rem;
    font-family: 'et-book', serif;
}

button {
    background-color: #0b0f0f;
    color: #55CFCF;
    border: 1px solid #55CFCF;
    padding: 0.8rem;
    font-family: 'et-book', serif;
    cursor: pointer;
    text-transform: uppercase;
    transition: all 0.3s;
}

button:hover:not([disabled]) {
    background-color: #55CFCF;
    color: #0b0f0f;
}
button[disabled] { 
    opacity: 0.4;
    cursor: not-allowed;
    border-color: gray;
    color: gray;
}

.toggle.on { 
    background-color: #55CFCF;
    color: #0b0f0f;
    font-weight: bold;
}