/* Full NexBuild Site Style */
body {
    background-color: #0f172a;
    color: #e2e8f0;
    font-family: 'Poppins', sans-serif;
}

h1, h2, h3 {
    color: #60a5fa;
    margin-top: 20px;
    text-align: center;
}

button, .start-build-button {
    background-color: #1e293b;
    color: #e2e8f0;
    padding: 12px 24px;
    border: 2px solid #60a5fa;
    border-radius: 10px;
    margin: 10px;
    font-weight: bold;
    font-size: 16px;
    transition: all 0.4s ease;
    cursor: pointer;
    box-shadow: 0 0 10px #3b82f6;
    text-decoration: none;
    display: inline-block;
}

button:hover, .start-build-button:hover {
    background-color: #60a5fa;
    color: #0f172a;
    transform: scale(1.05);
    box-shadow: 0 0 20px #60a5fa, 0 0 40px #3b82f6;
}

#popup {
    background: #1f2937;
    padding: 20px;
    border-radius: 12px;
    margin-top: 20px;
    box-shadow: 0 0 20px #3b82f6;
}

#build-summary {
    background: #1f2937;
    padding: 25px;
    margin-top: 30px;
    border-radius: 15px;
    box-shadow: 0 0 25px #3b82f6;
    font-size: 16px;
    font-weight: 500;
}

table {
    width: 100%;
    border-collapse: collapse;
    margin-top: 15px;
}

th, td {
    border: 1px solid #374151;
    padding: 12px;
    text-align: center;
}

th {
    background-color: #334155;
    color: #93c5fd;
    font-size: 18px;
}

tfoot {
    background-color: #2563eb;
    color: #ffffff;
    font-size: 20px;
    font-weight: bold;
}

tfoot th {
    padding: 15px;
}

.warning {
    color: #f87171;
    font-weight: bold;
    animation: warningPulse 1s infinite;
}

@keyframes warningPulse {
    0% { color: #f87171; }
    50% { color: #f43f5e; }
    100% { color: #f87171; }
}

#backToTopBtn {
    display: none;
    position: fixed;
    bottom: 40px;
    right: 40px;
    z-index: 99;
    border: none;
    outline: none;
    background-color: #3b82f6;
    color: white;
    cursor: pointer;
    padding: 15px;
    border-radius: 50%;
    font-size: 20px;
    box-shadow: 0 0 20px #3b82f6, 0 0 40px #60a5fa;
    transition: all 0.4s;
}

#backToTopBtn:hover {
    background-color: #60a5fa;
    box-shadow: 0 0 30px #60a5fa, 0 0 60px #3b82f6;
}