body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background-color: #f8fafc;
    color: #1e293b;
    line-height: 1.6;
}
p { text-align: justify; }
/* Main Content */
.main-content {
    /* max-width: 1100px; */
    /* width: 100%; */
    padding: 3rem 0 4rem;
    align-items: center;
}
.container {
    /* width: 100%; */
    margin: 0 auto;
    padding: 0 1.5rem;
}
/* Header Styles */
header {
    background: white;
    border-bottom: 1px solid #e2e8f0;
    position: sticky;
    top: 0;
    z-index: 100;
}
.header-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 0;
}
.logo {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-weight: 700;
    font-size: 1.25rem;
    color: #1e293b;
}
.logo-icon {
    width: 32px;
    height: 32px;
    background: #2563eb;
    border-radius: 0.5rem;
    margin-left: 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
}
.logo a {
  text-decoration: none !important;
}
nav {
    padding-right: 16px;
}
nav ul {
    display: flex;
    list-style: none;
    gap: 2rem;
}
nav a {
    padding-left: 12px;
    font-size: 16px;
    font-weight: bold;
    text-decoration: none;
    color: #475569;
    /* font-weight: 500; */
    transition: color 0.2s;
}
nav a:hover {
    color: #2563eb;
}
.header-buttons {
    display: flex;
    gap: 1rem;
    align-items: center;
}
.btn {
    padding: 0.5rem 1.5rem;
    border-radius: 0.5rem;
    font-weight: 500;
    text-decoration: none;
    transition: all 0.2s;
    cursor: pointer;
    display: inline-block;
}
.btn-outline {
    border: 2px solid #cbd5e1;
    color: #475569;
}
.btn-outline:hover {
    border-color: #2563eb;
    color: #2563eb;
}
.btn-primary {
    background: #2563eb;
    color: white;
}
.btn-primary:hover {
    background: #1d4ed8;
}
.page-title {
    text-align: center;
    margin-bottom: 3rem;
}
.page-title h1 {
    font-size: 2.5rem;
    font-weight: 800;
    color: #1e293b;
    display: inline-block;
    padding: 1rem 2rem;
    background-color: #ffffff;
    border-radius: 0.5rem;
    box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
}
.page-title p {
    font-size: 1.25rem;
    color: #475569;
    max-width: 700px;
    margin: 1rem auto 0;
}
/* Layout Card */
.layout-card {
    background: white;
    border-radius: 1rem;
    box-shadow: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
    margin-bottom: 3rem;
    overflow: hidden;
    border: 1px solid #e2e8f0;
}
.layout-header {
    display: flex;
    align-items: center;
    gap: 1rem;
    padding: 2rem;
    border-bottom: 1px solid #e2e8f0;
}
.layout-icon {
    width: 48px;
    height: 48px;
    border-radius: 0.75rem;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.25rem;
}
.layout-header h2 {
    font-size: 1.5rem;
    font-weight: 700;
    color: #1e293b;
    text-shadow: 1px 1px 2px rgba(0, 0, 0, 0.1);
}
.layout-content {
    display: grid;
    grid-template-columns: 1fr; /* Changed to single column */
    gap: 2rem;
    padding: 2rem;
}
.layout-section h3 {
    font-size: 1.125rem;
    font-weight: 600;
    margin-bottom: 1rem;
    color: #1e293b;
    text-shadow: 1px 1px 2px rgba(0, 0, 0, 0.1);
}
.layout-list {
    list-style: square;
}
.layout-list li {
    /* display: flex; */
    /* align-items: flex-start; */
    gap: 0.75rem;
    margin-bottom: 0.75rem;
    color: #475569;
    margin-left: 32px;
}
.layout-reasoning p {
    margin-bottom: 1.5rem;
    color: #475569;
}
.reasoning-badge {
    padding: 1rem;
    border-radius: 0.5rem;
    font-size: 0.875rem;
    font-weight: 600;
}
/* Color variants for icons and badges */
.icon-success { background: #dcfce7; color: #16a34a; }
.icon-blue { background: #dbeafe; color: #1d4ed8; }
.icon-orange { background: #ffedd5; color: #ea580c; }
.icon-indigo { background: #e0e7ff; color: #4f46e5; }
.icon-teal { background: #ccfbf1; color: #0d9488; }
.icon-purple { background: #ede9fe; color: #7c3aed; }
.icon-amber { background: #fef3c7; color: #d97706; }
.badge-success { background: #dcfce7; color: #16a34a; }
.badge-blue { background: #dbeafe; color: #1d4ed8; }
.badge-green { background: #dcfce7; color: #16a34a; }
.badge-purple { background: #ede9fe; color: #7c3aed; }
.badge-rose { background: #ffe4e6; color: #e11d48; }
.badge-amber { background: #fef3c7; color: #d97706; }

/* Tool Instructions Section */
.tool-instructions {
    background: white;
    border-radius: 1rem;
    box-shadow: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
    margin-bottom: 3rem;
    overflow: hidden;
    border: 1px solid #e2e8f0;
}
.tool-instructions-header {
    display: flex;
    align-items: center;
    gap: 1rem;
    padding: 2rem;
    border-bottom: 1px solid #e2e8f0;
}
.tool-instructions-content {
    padding: 2rem;
}
.tool-section {
    margin-bottom: 2rem;
    padding-bottom: 2rem;
    border-bottom: 1px solid #f1f5f9;
}
.tool-section:last-child {
    margin-bottom: 0;
    padding-bottom: 0;
    border-bottom: none;
}
.tool-section h3 {
    font-size: 1.25rem;
    font-weight: 700;
    color: #1e293b;
    margin-bottom: 1rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}
.tool-section h3 i {
    color: #2563eb;
}
.tool-section ul {
    list-style: none;
    margin-left: 1.5rem;
}
.tool-section li {
    margin-bottom: 0.75rem;
    color: #475569;
    position: relative;
}
.tool-section li::before {
    content: "•";
    color: #2563eb;
    font-weight: bold;
    position: absolute;
    left: -1.25rem;
}


/* Footer */
footer {
    padding: 3rem 0 2rem;
    border-top: 1px solid #e2e8f0;
    font-weight: bold;
}
.footer-content {
    text-align: center;
    color: #000000;
    font-size: 0.875rem;
    line-height: 1.5;
}
/* Additional styles for VLC guide content */
.intro-section {
    background: white;
    border-radius: 1rem;
    box-shadow: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
    padding: 2rem;
    margin-bottom: 3rem;
    border: 1px solid #e2e8f0;
}
.intro-section h2 {
    font-size: 1.8rem;
    font-weight: 700;
    color: #1e293b;
    margin-bottom: 1.5rem;
    text-shadow: 1px 1px 2px rgba(0, 0, 0, 0.1);
}
.intro-section p {
    margin-bottom: 1rem;
    color: #475569;
}
.code-block {
    background: #f1f5f9;
    border-radius: 0.5rem;
    padding: 1rem;
    margin: 1rem 0;
    font-family: monospace;
    color: #334155;
    overflow-x: auto;
}
.note-box {
    background: #dbeafe;
    border-left: 4px solid #2563eb;
    padding: 1rem;
    margin: 1rem 0;
    border-radius: 0.25rem;
}
/* Responsive */
@media (max-width: 768px) {
    .header-container {
        flex-direction: column;
        gap: 1rem;
    }
    
    nav ul {
        gap: 1rem;
        flex-wrap: wrap;
        justify-content: center;
    }
    
    .header-buttons {
        width: 100%;
        justify-content: center;
    }
    
    .page-title h1 {
        font-size: 2rem;
    }
    
    .layout-content {
        grid-template-columns: 1fr; /* Ensures single column on mobile as well */
        gap: 1.5rem;
    }
}
.center-img {
    display: block;      /* makes margin auto work */
    margin: 0 auto;      /* top/bottom 0, left/right auto */
}
/* Appendix Section */
.appendix-section {
    background: white;
    border-radius: 1rem;
    box-shadow: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
    margin-bottom: 3rem;
    overflow: hidden;
    border: 1px solid #e2e8f0;
}
.appendix-header {
    display: flex;
    align-items: center;
    gap: 1rem;
    padding: 2rem;
    border-bottom: 1px solid #e2e8f0;
}
.appendix-content {
    padding: 2rem;
}
.appendix-subsection {
    margin-bottom: 2rem;
}
.appendix-subsection:last-child {
    margin-bottom: 0;
}
.appendix-subsection h3 {
    font-size: 1.25rem;
    font-weight: 700;
    color: #1e293b;
    margin-bottom: 1rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}
.appendix-subsection h3 i {
    color: #2563eb;
}
.appendix-subsection ul {
    list-style: none;
    margin-left: 1.5rem;
}
.appendix-subsection li {
    margin-bottom: 0.75rem;
    color: #475569;
    position: relative;
}
.appendix-subsection li::before {
    content: "•";
    color: #2563eb;
    font-weight: bold;
    position: absolute;
    left: -1.25rem;
}
.appendix-note {
    background: #f8fafc;
    border-left: 4px solid #2563eb;
    padding: 1rem;
    margin-top: 1.5rem;
    color: #475569;
    font-style: italic;
}
/* FAQ Section */
.faq-section {
    background: white;
    border-radius: 1rem;
    box-shadow: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
    margin-bottom: 3rem;
    overflow: hidden;
    border: 1px solid #e2e8f0;
}
.faq-header {
    display: flex;
    align-items: center;
    gap: 1rem;
    padding: 2rem;
    border-bottom: 1px solid #e2e8f0;
}
.faq-content {
    padding: 2rem;
}
.faq-item {
    margin-bottom: 1rem;
    padding-bottom: 1rem;
    border-bottom: 1px solid #f1f5f9;
}
.faq-item:last-child {
        margin-bottom: 0;
    padding-bottom: 0;
    border-bottom: none;
}
.faq-question {
    font-size: 1.25rem;
    font-weight: 700;
    color: #1e293b;
    margin-bottom: 1rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}
.faq-question i {
    color: #2563eb;
}
.faq-answer {
    color: #475569;
    margin-left: 2rem;
}
.faq-answer ul {
    list-style: none;
    margin-top: 0.5rem;
}
.faq-answer li {
    margin-bottom: 0.5rem;
    position: relative;
    padding-left: 1.25rem;
}
.faq-answer li::before {
    content: "•";
    color: #2563eb;
    font-weight: bold;
    position: absolute;
    left: 0;
}
.btn-sm {
    display: inline-block;
    margin: 0 1.5rem 1.5rem 1.5rem;
    padding: 0.5rem 1rem;
    background-color: transparent;
    color: #4f9cff;
    border: 1px solid #4f9cff;
    border-radius: 5px;
    text-decoration: none;
    font-weight: 500;
    text-align: center;
    transition: background-color 0.3s, color 0.3s;
}
.btn-sm:hover {
    background-color: #3f8cdf;
    color: #0f1724;
}