/* --- Global Styles & Tech Theme --- */
:root {
    --primary-glow: rgba(0, 123, 255, 0.5);
    --success-glow: rgba(25, 135, 84, 0.5);
}

body {
    font-family: 'Roboto', sans-serif;
    background-color: #1a1a2e; /* Dark blue background */
    color: #e0e0e0;
    background-image:
        radial-gradient(circle at 20% 20%, rgba(13, 110, 253, 0.1) 0%, transparent 40%),
        radial-gradient(circle at 80% 80%, rgba(25, 135, 84, 0.1) 0%, transparent 40%);
    min-height: 100vh;
}

.main-container {
    max-width: 1400px;
    margin-top: 2rem;
    margin-bottom: 2rem;
}

.header-title {
    font-family: 'Orbitron', sans-serif;
    color: #fff;
    text-shadow: 0 0 10px var(--primary-glow);
}

/* --- Card Styling (Flat 3D / Glassmorphism) --- */
.card {
    background-color: rgba(27, 40, 69, 0.7); /* Translucent dark blue */
    border: 1px solid rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    box-shadow: 0 8px 32px 0 rgba(0, 0, 0, 0.37);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.card:hover {
    transform: translateY(-5px);
    box-shadow: 0 12px 40px 0 rgba(0, 0, 0, 0.5);
}

.card-title {
    color: #c0c0ff;
}

/* --- Custom Button --- */
.btn-primary-custom {
    background: linear-gradient(45deg, #0d6efd, #0d9efd);
    border: none;
    transition: all 0.3s ease;
    box-shadow: 0 4px 15px 0 rgba(13, 110, 253, 0.4);
}

.btn-primary-custom:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px 0 rgba(13, 110, 253, 0.6);
}

/* --- Log Terminal --- */
.log-terminal {
    background-color: #000;
    border: 1px solid #333;
    border-radius: 5px;
    min-height: 250px;
    overflow-y: auto;
    padding: 15px;
    font-family: 'Courier New', Courier, monospace;
    font-size: 0.9em;
    box-shadow: inset 0 0 10px rgba(0, 0, 0, 0.5);
    display: flex;
    flex-direction: column;
}

.log-entry {
    margin-bottom: 5px;
    white-space: pre-wrap;
    word-break: break-all;
    animation: fadeIn 0.5s ease;
}

@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

.log-entry.info { color: #2ecc71; } /* Green for INFO */
.log-entry.error { color: #e74c3c; } /* Red for ERROR */
.log-entry.warn { color: #f39c12; } /* Yellow for WARN */

#log-placeholder {
    color: #666;
    text-align: center;
    margin: auto;
}

/* --- QR Code Display & Data Boxes --- */
.qr-code-wrapper {
    padding: 10px;
    background-color: #fff;
    border-radius: 8px;
    display: inline-block;
    box-shadow: 0 0 20px rgba(255, 255, 255, 0.2);
}

.data-box {
    word-break: break-all;
    font-size: 0.9em;
    max-height: 80px;
    overflow-y: auto;
    background-color: rgba(0,0,0,0.2);
    border: 1px solid rgba(255,255,255,0.1);
}