html, body {
    font-family: 'Helvetica Neue', Helvetica, Arial, sans-serif;
    background-color: #121212;
    color: #e0e0e0;
    margin: 0;
    padding: 0;
}

a, .btn-link {
    color: #4da6ff;
}

a:hover, .btn-link:hover {
    color: #80c1ff;
}

.btn-primary {
    color: #fff;
    background-color: #1b6ec2;
    border-color: #1861ac;
}

.btn-primary:hover {
    background-color: #2080e0;
    border-color: #1b6ec2;
}

.btn-secondary {
    color: #fff;
    background-color: #555;
    border-color: #444;
}

.btn-secondary:hover {
    background-color: #666;
    border-color: #555;
    color: #fff;
    text-decoration: none;
}

.cta-buttons {
    display: flex;
    gap: 1rem;
    justify-content: center;
    flex-wrap: wrap;
}

.btn:focus, .btn:active:focus, .btn-link.nav-link:focus, .form-control:focus, .form-check-input:focus {
    box-shadow: 0 0 0 0.1rem #121212, 0 0 0 0.25rem #258cfb;
}

.content {
    padding-top: 0;
}

h1, h2, h3, h4, h5, h6 {
    color: #ffffff;
}

h1:focus {
    outline: none;
}

.valid.modified:not([type=checkbox]) {
    outline: 1px solid #26b050;
}

.invalid {
    outline: 1px solid #ff6b6b;
}

.validation-message {
    color: #ff6b6b;
}

.blazor-error-boundary {
    background: url(data:image/svg+xml;base64,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) no-repeat 1rem/1.8rem, #b32121;
    padding: 1rem 1rem 1rem 3.7rem;
    color: white;
}

    .blazor-error-boundary::after {
        content: "An error has occurred."
    }

.darker-border-checkbox.form-check-input {
    border-color: #929292;
}

.form-control {
    background-color: #1e1e1e;
    border-color: #444;
    color: #e0e0e0;
}

.form-control:focus {
    background-color: #252525;
    border-color: #258cfb;
    color: #e0e0e0;
}

.form-floating > .form-control-plaintext::placeholder, .form-floating > .form-control::placeholder {
    color: #888;
    text-align: end;
}

.form-floating > .form-control-plaintext:focus::placeholder, .form-floating > .form-control:focus::placeholder {
    text-align: start;
}

/* Hero Banner */
.hero-banner {
    background: linear-gradient(rgba(0, 0, 0, 0.6), rgba(0, 0, 0, 0.6)), 
                url('d20tek-banner.jpg') center/cover no-repeat;
    color: white;
    padding: 6rem 2rem;
    text-align: center;
    margin: 0 0 2rem 0;
}

.hero-content h1 {
    font-size: 3rem;
    font-weight: 700;
    margin-bottom: 1rem;
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.7);
}

.hero-tagline {
    font-size: 1.5rem;
    opacity: 0.9;
    margin-bottom: 2rem;
    text-shadow: 1px 1px 3px rgba(0, 0, 0, 0.7);
}

.hero-banner .btn-lg {
    padding: 0.75rem 2rem;
    font-size: 1.1rem;
}

/* Intro Section */
.intro-section {
    max-width: 900px;
    margin: 0 auto;
    padding: 2rem 1rem;
}

.intro-section h2 {
    color: #4da6ff;
    font-size: 2rem;
    margin-bottom: 1.5rem;
    text-align: center;
}

.intro-text {
    font-size: 1.1rem;
    line-height: 1.8;
    color: #b0b0b0;
    margin-bottom: 1.5rem;
    text-align: justify;
}

/* Projects Section */
.projects-section {
    background-color: #1a1a1a;
    padding: 3rem 2rem;
}

.projects-section .container {
    max-width: 1200px;
    margin: 0 auto;
}

.section-title {
    color: #4da6ff;
    font-size: 2rem;
    text-align: center;
    margin-bottom: 0.5rem;
}

.section-subtitle {
    color: #888;
    text-align: center;
    margin-bottom: 2.5rem;
    font-size: 1.1rem;
}

/* Tile Grid */
.tile-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 1.5rem;
    padding: 0 1rem;
}

/* Tile Component */
.tile {
    display: flex;
    flex-direction: column;
    background-color: #252525;
    border: 1px solid #333;
    border-radius: 12px;
    overflow: hidden;
    text-decoration: none;
    color: inherit;
    transition: transform 0.2s ease, box-shadow 0.2s ease, border-color 0.2s ease;
}

.tile:hover {
    transform: translateY(-4px);
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.4);
    border-color: #4da6ff;
    color: inherit;
    text-decoration: none;
}

.tile-image-container {
    width: 100%;
    height: 160px;
    overflow: hidden;
    background-color: #1e1e1e;
}

.tile-image {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.3s ease;
}

.tile:hover .tile-image {
    transform: scale(1.05);
}

.tile-placeholder {
width: 100%;
height: 100%;
display: flex;
align-items: center;
justify-content: center;
background: linear-gradient(135deg, #2e7d32 0%, #1b5e20 100%);
    color: white;
    font-size: 2.5rem;
    font-weight: 700;
}

.tile-content {
    padding: 1.25rem;
    flex: 1;
}

.tile-title {
    color: #ffffff;
    font-size: 1.2rem;
    font-weight: 600;
    margin: 0 0 0.5rem 0;
}

.tile-description {
    color: #a0a0a0;
    font-size: 0.9rem;
    line-height: 1.5;
    margin: 0;
}

/* Dark theme Bootstrap overrides */
.card {
    background-color: #1e1e1e;
    border-color: #333;
}

.table {
    color: #e0e0e0;
}

.table-striped > tbody > tr:nth-of-type(odd) {
    background-color: rgba(255, 255, 255, 0.05);
}

/* Contact Page */
.contact-page {
    max-width: 800px;
    margin: 0 auto;
    padding: 3rem 2rem;
    text-align: center;
}

.contact-title {
    font-family: 'Georgia', 'Times New Roman', serif;
    font-size: 3rem;
    font-weight: 400;
    font-style: italic;
    color: #a0a0a0;
    margin-bottom: 0.5rem;
}

.title-divider {
    width: 60px;
    height: 3px;
    background-color: #4da6ff;
    margin: 0 auto 2rem auto;
}

.contact-subtitle {
    font-size: 1.25rem;
    color: #e0e0e0;
    margin-bottom: 2rem;
}

.contact-form {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.form-group {
    width: 100%;
}

.contact-input {
    width: 100%;
    padding: 1rem 1.25rem;
    background-color: #1e1e1e;
    border: 1px solid #444;
    border-radius: 8px;
    color: #e0e0e0;
    font-size: 1rem;
    box-sizing: border-box;
}

.contact-input::placeholder {
    color: #888;
}

.contact-input:focus {
    outline: none;
    border-color: #4da6ff;
    background-color: #252525;
}

.contact-textarea {
    min-height: 200px;
    resize: vertical;
}

.checkbox-group {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.75rem;
    margin-top: 1rem;
}

.contact-checkbox {
    width: 18px;
    height: 18px;
    accent-color: #4da6ff;
    cursor: pointer;
}

.checkbox-label {
    color: #b0b0b0;
    font-size: 0.95rem;
    cursor: pointer;
}

.contact-submit {
    margin-top: 1rem;
    padding: 0.875rem 3rem;
    background-color: #ffffff;
    color: #121212;
    border: none;
    border-radius: 4px;
    font-size: 1rem;
    font-weight: 600;
    letter-spacing: 0.05em;
    cursor: pointer;
    align-self: center;
    transition: background-color 0.2s ease;
}

.contact-submit:hover {
    background-color: #e0e0e0;
}

.submission-message {
    margin-top: 2rem;
    padding: 1rem;
    background-color: #1e3a1e;
    border: 1px solid #26b050;
    border-radius: 8px;
    color: #90ee90;
}

.error-message {
    margin-top: 2rem;
    padding: 1rem;
    background-color: #3a1e1e;
    border: 1px solid #b02626;
    border-radius: 8px;
    color: #ff6b6b;
}

/* Article Page Styles */
.article-page {
    max-width: 900px;
    margin: 0 auto;
    padding: 2rem;
}

.article-title {
    font-size: 2.5rem;
    color: #ffffff;
    text-align: center;
    margin-bottom: 1.5rem;
}

.article-intro {
    font-size: 1.2rem;
    line-height: 1.8;
    color: #b0b0b0;
    text-align: center;
    margin-bottom: 2.5rem;
    padding: 0 1rem;
}

.article-updated {
    text-align: center;
    color: #666;
    font-size: 0.9rem;
    margin-top: -2rem;
    margin-bottom: 2.5rem;
}

.article-section {
    margin-bottom: 2.5rem;
}

.article-section h2 {
    color: #4da6ff;
    font-size: 1.75rem;
    margin-bottom: 1rem;
    padding-bottom: 0.5rem;
    border-bottom: 1px solid #333;
}

.article-section h3 {
    color: #ffffff;
    font-size: 1.25rem;
    margin: 1.5rem 0 0.75rem 0;
}

.article-section p {
    color: #c0c0c0;
    line-height: 1.7;
    margin-bottom: 1rem;
}

.article-section ul,
.article-section ol {
    color: #c0c0c0;
    line-height: 1.8;
    margin-bottom: 1rem;
    padding-left: 1.5rem;
}

.article-section li {
    margin-bottom: 0.5rem;
}

.article-table {
    width: 100%;
    border-collapse: collapse;
    margin: 1rem 0 1.5rem 0;
    background-color: #1e1e1e;
    border-radius: 8px;
    overflow: hidden;
}

.article-table th,
.article-table td {
    padding: 0.75rem 1rem;
    text-align: left;
    border-bottom: 1px solid #333;
}

.article-table th {
    background-color: #252525;
    color: #ffffff;
    font-weight: 600;
}

.article-table td {
    color: #c0c0c0;
}

.article-table tr:last-child td {
    border-bottom: none;
}

.code-block {
    background-color: #1e1e1e;
    border: 1px solid #333;
    border-radius: 8px;
    padding: 1rem;
    margin: 1rem 0;
    overflow-x: auto;
}

.code-block pre {
    margin: 0;
    color: #c0c0c0;
    font-family: 'Consolas', 'Monaco', monospace;
    font-size: 0.9rem;
    line-height: 1.5;
}

.color-indicator {
    display: inline-block;
    padding: 0.25rem 0.75rem;
    border-radius: 4px;
    font-weight: 600;
    font-size: 0.85rem;
}

.color-indicator.green {
    background-color: #2e7d32;
    color: #ffffff;
}

.color-indicator.yellow {
    background-color: #f9a825;
    color: #000000;
}

.color-indicator.gray {
    background-color: #616161;
    color: #ffffff;
}

.text-green {
    color: #4caf50;
}

.text-yellow {
    color: #ffeb3b;
}

.text-gray {
    color: #9e9e9e;
}

.strategy-list {
    counter-reset: strategy;
    list-style: none;
    padding-left: 0;
}

.strategy-list li {
    counter-increment: strategy;
    padding-left: 2.5rem;
    position: relative;
    margin-bottom: 1rem;
}

.strategy-list li::before {
    content: counter(strategy);
    position: absolute;
    left: 0;
    top: 0;
    width: 1.75rem;
    height: 1.75rem;
    background-color: #4da6ff;
    color: #ffffff;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 600;
    font-size: 0.9rem;
}

.article-cta {
    text-align: center;
    padding: 2rem;
    margin-top: 2rem;
    background-color: #1a1a1a;
    border-radius: 12px;
    border: 1px solid #333;
}

.article-cta p {
    color: #e0e0e0;
    font-size: 1.25rem;
    margin-bottom: 1rem;
}

/* Component Grid for Blazor Components page */
.component-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 1.5rem;
    margin-top: 1.5rem;
}

.component-card {
    background-color: #1e1e1e;
    border: 1px solid #333;
    border-radius: 12px;
    padding: 1.5rem;
    transition: border-color 0.2s ease, box-shadow 0.2s ease;
}

.component-card:hover {
    border-color: #4da6ff;
    box-shadow: 0 4px 16px rgba(0, 0, 0, 0.3);
}

.component-card h3 {
    color: #ffffff;
    font-size: 1.25rem;
    margin: 0 0 0.75rem 0;
}

.component-card > p {
    color: #a0a0a0;
    font-size: 0.95rem;
    line-height: 1.6;
    margin-bottom: 1rem;
}

.component-features {
    list-style: none;
    padding: 0;
    margin: 0;
}

.component-features li {
    color: #888;
    font-size: 0.85rem;
    padding: 0.25rem 0 0.25rem 1.25rem;
    position: relative;
}

.component-features li::before {
    content: "✓";
    position: absolute;
    left: 0;
    color: #4da6ff;
    font-weight: bold;
}

.article-section code {
    background-color: #2a2a2a;
    color: #4da6ff;
    padding: 0.15rem 0.4rem;
    border-radius: 4px;
    font-family: 'Consolas', 'Monaco', monospace;
    font-size: 0.9em;
}

/* Article Images */
.article-figure {
    margin: 1.5rem 0;
    text-align: center;
}

.article-figure-centered {
    display: flex;
    justify-content: center;
}

.article-image {
    max-width: 100%;
    height: auto;
    border-radius: 8px;
    border: 1px solid #333;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.4);
}

.article-image-mobile {
    max-width: 350px;
}

.article-section h4 {
    color: #e0e0e0;
    font-size: 1.1rem;
    margin: 1.5rem 0 0.75rem 0;
}

/* Feature Grid */
.feature-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1rem;
    margin: 1rem 0 1.5rem 0;
}

.feature-item {
    background-color: #1e1e1e;
    border: 1px solid #333;
    border-radius: 8px;
    padding: 1rem;
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.feature-item strong {
    color: #e0e0e0;
}

.feature-badge {
    display: inline-block;
    font-size: 0.75rem;
    padding: 0.2rem 0.5rem;
    border-radius: 4px;
    background-color: #333;
    color: #888;
    width: fit-content;
}

.feature-badge.core {
    background-color: #1b5e20;
    color: #a5d6a7;
}

/* Tool Cards */
.tool-card {
    background-color: #1e1e1e;
    border: 1px solid #333;
    border-radius: 12px;
    padding: 1.5rem;
    margin-bottom: 1.5rem;
}

.tool-card h3 {
    color: #4da6ff;
    font-size: 1.5rem;
    font-family: 'Consolas', 'Monaco', monospace;
    margin: 0 0 0.75rem 0;
}

.tool-card h4 {
    color: #e0e0e0;
    font-size: 1rem;
    margin: 1.25rem 0 0.5rem 0;
}

.tool-card .tool-description {
    color: #b0b0b0;
    font-size: 1rem;
    line-height: 1.6;
    margin-bottom: 1rem;
}

.tool-card ul {
    color: #a0a0a0;
    margin: 0;
    padding-left: 1.5rem;
}

.tool-card li {
    margin-bottom: 0.25rem;
}

/* CTA Packages */
.cta-packages {
    margin-top: 1.5rem;
    padding-top: 1.5rem;
    border-top: 1px solid #333;
}

.cta-packages-label {
    color: #888;
    font-size: 0.9rem;
    margin-bottom: 0.75rem;
}

.cta-packages .cta-buttons {
    gap: 0.75rem;
}

.cta-packages .btn-secondary {
    font-size: 0.9rem;
    padding: 0.5rem 1rem;
}

/* Tech Grid for About page */
.tech-grid {
    display: flex;
    flex-wrap: wrap;
    gap: 0.75rem;
    margin-top: 1rem;
}

.tech-badge {
    background-color: #1e1e1e;
    border: 1px solid #4da6ff;
    color: #4da6ff;
    padding: 0.5rem 1rem;
    border-radius: 20px;
    font-size: 0.9rem;
    font-weight: 500;
}

/* Article CTA h2 styling */
.article-cta h2 {
    color: #ffffff; 
    font-size: 1.5rem;
    margin: 0 0 0.5rem 0;
}