:root {
    --primary-color: #002855;
    --secondary-color: #bf0d3e;
    --text-color: #333;
    --background-color: #ffffff;
    --card-background: #f8f9fa;
    --nav-background: #002855;
    --transition-speed: 0.3s;
}

body {
    font-family: 'Roboto', Arial, sans-serif;
    text-align: center;
    background-color: var(--background-color);
    margin: 0;
    padding: 0;
    line-height: 1.6;
    color: var(--text-color);
}

.nav-bar {
    background-color: var(--primary-color);
    padding: 15px 20px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo-container {
    display: flex;
    align-items: center;
}

.logo {
    height: 40px;
}

.nav-links {
    display: flex;
    gap: 20px;
}

.nav-link {
    color: white;
    text-decoration: none;
    font-weight: 500;
    padding: 8px 12px;
    border-radius: 4px;
    transition: background-color 0.3s;
}

.nav-link:hover {
    background-color: rgba(255, 255, 255, 0.2);
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 20px;
}

h1 {
    color: var(--primary-color);
    font-size: 2.5em;
    margin: 1rem 0;
    font-weight: 700;
}

h2 {
    color: var(--secondary-color);
    font-size: 1.8em;
    margin: 1.5rem 0;
    font-weight: 600;
}

.section {
    background: var(--card-background);
    margin: 2rem 0;
    padding: 2rem;
    border-radius: 8px;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.05);
    transition: transform var(--transition-speed);
}

.section:hover {
    transform: translateY(-5px);
}

.grade-cards {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 1.5rem;
    margin: 1.5rem 0;
}

.grade-card {
    background: white;
    padding: 1.5rem;
    border-radius: 8px;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
    transition: transform var(--transition-speed);
    border: 1px solid #eee;
}

.grade-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
}

.grade-logo {
    height: 1.2em;
    width: auto;
    vertical-align: middle;
    margin-right: 0.2em;
    display: inline-block;
}

.grade-card strong {
    display: flex;
    align-items: center;
    font-size: 1.2rem;
    margin-bottom: 0.5rem;
}

.service-cards {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 1.5rem;
    margin: 1.5rem 0;
}

.testimonials {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 1.5rem;
}

.testimonial {
    background: white;
    padding: 1.5rem;
    border-radius: 8px;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
    font-style: italic;
    position: relative;
    border: 1px solid #eee;
}

.testimonial::before {
    content: '"';
    font-size: 4em;
    color: var(--secondary-color);
    opacity: 0.1;
    position: absolute;
    top: -10px;
    left: 10px;
}

.secret {
    background: white;
    padding: 1.5rem;
    margin: 1rem 0;
    border-radius: 8px;
    cursor: pointer;
    transition: all var(--transition-speed);
    border: 1px solid #eee;
}

.secret:hover {
    background: var(--card-background);
    transform: translateX(10px);
}

.theme-toggle {
    position: fixed;
    bottom: 20px;
    right: 20px;
    background: var(--primary-color);
    color: white;
    border: none;
    padding: 12px 20px;
    border-radius: 25px;
    cursor: pointer;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.2);
    transition: all var(--transition-speed);
}

.theme-toggle:hover {
    transform: scale(1.05);
}

.grade-button {
    background: var(--secondary-color);
    color: white;
    border: none;
    padding: 15px 30px;
    border-radius: 25px;
    font-size: 1.1em;
    cursor: pointer;
    transition: all var(--transition-speed);
    margin: 1rem 0;
}

.grade-button:hover {
    transform: scale(1.05);
    box-shadow: 0 4px 12px rgba(191, 13, 62, 0.3);
}

#grade-result {
    font-size: 1.5em;
    font-weight: bold;
    color: var(--secondary-color);
    margin: 1rem 0;
}

.footer {
    background: var(--primary-color);
    color: white;
    padding: 2rem 0;
    margin-top: 3rem;
}

.label-means-section {
    background: white;
    color: #000;
    padding: 6rem 2rem;
    margin: 2rem -20px;
    text-align: center;
}

.label-content {
    max-width: 1200px;
    margin: 0 auto;
}

.label-title {
    font-family: 'Roboto', sans-serif;
    line-height: 1;
    margin-bottom: 4rem;
}

.label-line1 {
    font-size: 6.5rem;
    font-weight: 300;
    letter-spacing: -0.02em;
    margin-bottom: -0.5rem;
}

.label-line2 {
    font-size: 6.5rem;
    font-weight: 300;
    letter-spacing: -0.02em;
}

.label-italic {
    font-family: 'Times New Roman', serif;
    font-style: italic;
    font-weight: 400;
    letter-spacing: -0.01em;
}

.label-subtitle {
    font-size: 1.4rem;
    color: #666;
    margin: -2rem 0 4rem;
    font-weight: 300;
}

.label-grid {
    display: flex;
    justify-content: center;
    gap: 2rem;
    margin-top: 4rem;
    padding: 0 2rem;
    flex-wrap: wrap;
}

.feature-item {
    flex: 1;
    min-width: 200px;
    max-width: 300px;
    text-align: center;
    padding: 1.5rem;
}

.feature-item h3 {
    color: var(--primary-color);
    font-size: 1.5rem;
    margin-bottom: 1rem;
    font-weight: 500;
    letter-spacing: -0.01em;
}

.feature-item p {
    line-height: 1.5;
    color: #666;
    font-size: 1rem;
    font-weight: 300;
}

.how-it-works {
    padding: 4rem 2rem;
    background: var(--background-alt);
    text-align: center;
}

.how-it-works h2 {
    font-size: 2.5rem;
    color: var(--primary-color);
    margin-bottom: 3rem;
    font-weight: 300;
    letter-spacing: -0.02em;
}

.steps {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 2rem;
    max-width: 800px;
    margin: 0 auto;
}

.step {
    text-align: center;
    max-width: 600px;
    padding: 1.5rem;
}

.step h3 {
    color: var(--primary-color);
    font-size: 1.5rem;
    margin-bottom: 1rem;
    font-weight: 500;
}

.step p {
    color: #666;
    line-height: 1.6;
    font-size: 1.1rem;
    font-weight: 300;
}

.example-slab {
    padding: 4rem 2rem;
    text-align: center;
    background: white;
}

.example-slab h2 {
    font-size: 2.5rem;
    color: var(--primary-color);
    margin-bottom: 3rem;
    font-weight: 300;
    letter-spacing: -0.02em;
}

.slab-container {
    display: flex;
    justify-content: center;
    align-items: center;
    padding: 2rem;
    gap: 2rem;
    flex-wrap: wrap;
}

.slab {
    width: 300px;
    height: 450px;
    background: white;
    border-radius: 15px;
    box-shadow: 0 0 20px rgba(0, 0, 0, 0.2);
    display: flex;
    flex-direction: column;
    overflow: hidden;
    border: 2px solid #e0e0e0;
    transition: transform 0.3s ease;
}

.slab:hover {
    transform: translateY(-5px);
}

.grade-circle.pristine {
    background: var(--secondary-color);
}

.slab-header {
    background: var(--primary-color);
    color: white;
    padding: 0.5rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.slab-logo {
    height: 25px;
    width: auto;
}

.cert-number {
    font-size: 0.8rem;
    font-family: monospace;
}

.card-area {
    flex: 1;
    padding: 1rem;
    display: flex;
    align-items: center;
    justify-content: center;
    background: #f8f8f8;
}

.placeholder-card {
    width: 90%;
    height: 80%;
    border: 2px dashed #ccc;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    color: #999;
}

.placeholder-card small {
    margin-top: 0.5rem;
    font-size: 0.8rem;
    font-style: italic;
}

.slab-footer {
    padding: 1rem;
    display: flex;
    align-items: center;
    gap: 1rem;
    background: white;
    border-top: 1px solid #e0e0e0;
}

.grade-circle {
    width: 50px;
    height: 50px;
    background: var(--primary-color);
    border-radius: 50%;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    color: white;
    flex-shrink: 0;
}

.grade {
    font-size: 1.2rem;
    font-weight: bold;
    line-height: 1;
}

.grade-text {
    font-size: 0.6rem;
    text-transform: uppercase;
}

.label-info {
    text-align: left;
    flex: 1;
}

.card-name {
    font-weight: 500;
    font-size: 0.9rem;
    color: var(--primary-color);
}

.set-name,
.grade-date {
    font-size: 0.8rem;
    color: #666;
}

.label-generator {
    padding: 4rem 2rem;
    text-align: center;
    background: var(--background-alt);
}

.label-generator h2 {
    font-size: 2.5rem;
    color: var(--primary-color);
    margin-bottom: 1rem;
    font-weight: 300;
    letter-spacing: -0.02em;
}

.label-generator .subtitle {
    color: #666;
    font-size: 1.1rem;
    margin-bottom: 3rem;
}

.generator-form {
    max-width: 500px;
    margin: 0 auto 2rem;
    padding: 2rem;
    background: white;
    border-radius: 10px;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
}

.form-group {
    margin-bottom: 1.5rem;
    text-align: left;
}

.form-group label {
    display: block;
    margin-bottom: 0.5rem;
    color: var(--primary-color);
    font-weight: 500;
    text-align: left;
}

.form-group input {
    width: 100%;
    padding: 0.8rem;
    border: 2px solid #e0e0e0;
    border-radius: 5px;
    font-size: 1rem;
    transition: border-color 0.3s ease;
}

.form-group input:focus {
    border-color: var(--primary-color);
    outline: none;
}

.generate-btn, .print-btn {
    background: var(--primary-color);
    color: white;
    border: none;
    padding: 1rem 2rem;
    border-radius: 5px;
    font-size: 1rem;
    cursor: pointer;
    transition: background-color 0.3s ease;
    margin: 0.5rem;
}

.generate-btn:hover {
    background: #001f40;
}

.print-btn {
    background: var(--secondary-color);
}

.print-btn:hover {
    background: #a00b34;
}

.print-btn:disabled {
    background: #ccc;
    cursor: not-allowed;
}

.save-btn {
    background: var(--primary-color);
    color: white;
    border: none;
    padding: 10px 20px;
    border-radius: 4px;
    cursor: pointer;
    font-size: 1rem;
    margin-left: 10px;
    transition: all var(--transition-speed);
}

.save-btn:hover:not(:disabled) {
    background: #003b7a;
}

.save-btn:disabled {
    background: #ccc;
    cursor: not-allowed;
}

.saved-labels-section {
    background: var(--card-background);
    margin: 2rem 0;
    padding: 2rem;
    border-radius: 8px;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.05);
}

.saved-labels-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 2rem;
    margin-top: 2rem;
}

.saved-label {
    background: white;
    border-radius: 8px;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
    padding: 1rem;
    transition: transform var(--transition-speed);
}

.saved-label:hover {
    transform: translateY(-5px);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
}

.saved-label .preview-slab {
    margin: 0 auto 1rem;
}

.saved-label-actions {
    display: flex;
    justify-content: space-between;
    margin-top: 1rem;
}

.saved-label-actions button {
    background: var(--secondary-color);
    color: white;
    border: none;
    padding: 8px 16px;
    border-radius: 4px;
    cursor: pointer;
    transition: all var(--transition-speed);
}

.saved-label-actions button:hover {
    background: #d01146;
}

.saved-label-actions button:first-child {
    background: var(--primary-color);
}

.saved-label-actions button:first-child:hover {
    background: #003b7a;
}

.label-preview {
    margin-top: 2rem;
    display: none;
}

.label-preview.visible {
    display: block;
}

.preview-slab {
    width: 264px;
    height: 78px;
    margin: 20px auto;
    background: white;
    border: 2px solid #ff0000;
    border-radius: 8px;
    padding: 6px 10px;
    box-sizing: border-box;
    font-family: Arial, sans-serif;
    position: relative;
}

.label-content {
    position: relative;
    width: 100%;
    height: 100%;
}

.label-names {
    position: absolute;
    top: 0;
    left: 0;
    text-align: left;
}

#labelSetName, #labelCardName {
    padding-left: 0;
    margin-left: 0;
    text-align: left;
}

.label-date-number {
    position: absolute;
    top: 0;
    right: 0;
    font-size: 11px;
    display: flex;
    gap: 4px;
}

#labelSetName {
    font-size: 12px;
    margin-bottom: 1px;
    margin-left: 0;
}

#labelCardName {
    font-size: 13px;
}

.label-bottom {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.cert-number {
    font-family: monospace;
    font-size: 10px;
}

.grade-logo {
    display: flex;
    align-items: center;
    gap: 4px;
}

.slab-logo {
    height: 16px;
}

@media print {
    @page {
        size: 2.75in 0.8125in;
        margin: 0;
    }

    body {
        margin: 0;
        padding: 0;
    }

    body * {
        visibility: hidden;
    }

    .preview-slab, .preview-slab * {
        visibility: visible;
    }

    .preview-slab {
        position: absolute;
        top: 0;
        left: 0;
        width: 2.75in;
        height: 0.8125in;
        margin: 0;
        padding: 6px 10px;
        box-sizing: border-box;
        border: 2px solid #ff0000;
        background: white;
        break-inside: avoid;
    }

    .label-names {
        position: absolute;
        top: 6px;
        left: 10px;
    }

    .label-date-number {
        position: absolute;
        top: 6px;
        right: 10px;
    }

    .label-bottom {
        position: absolute;
        bottom: 6px;
        left: 10px;
        right: 10px;
        display: flex;
        justify-content: space-between;
        align-items: center;
    }
}

@media (max-width: 1024px) {
    .slab-container {
        gap: 1.5rem;
    }
}

@media (max-width: 768px) {
    .slab-container {
        flex-direction: column;
        gap: 2rem;
    }
}

@media (max-width: 768px) {
    .slab {
        width: 280px;
        height: 420px;
    }
}

@media (max-width: 1200px) {
    .label-grid {
        gap: 1.5rem;
    }

    .feature-item {
        min-width: 180px;
    }
}

@media (max-width: 768px) {
    .label-grid {
        flex-direction: column;
        align-items: center;
    }

    .feature-item {
        max-width: 100%;
        width: 100%;
    }
}

@media (max-width: 1024px) {
    .label-line1,
    .label-line2 {
        font-size: 5rem;
    }
}

@media (max-width: 768px) {
    .label-means-section {
        padding: 4rem 1rem;
        margin: 1rem -10px;
    }

    .label-line1,
    .label-line2 {
        font-size: 3.5rem;
    }

    .label-subtitle {
        font-size: 1.2rem;
        margin: -1rem 0 3rem;
    }

    .label-grid {
        grid-template-columns: 1fr;
        gap: 2rem;
        padding: 0 1rem;
    }

    .label-item h3 {
        font-size: 1.5rem;
    }
}

@media (max-width: 768px) {
    .container {
        padding: 10px;
    }

    h1 {
        font-size: 2em;
    }

    .grade-cards,
    .service-cards,
    .testimonials {
        grid-template-columns: 1fr;
    }

    .label-means-section {
        padding: 3rem 1rem;
        margin: 1rem -10px;
    }

    .label-line1,
    .label-line2 {
        font-size: 3rem;
    }

    .label-grid {
        grid-template-columns: 1fr;
        gap: 1rem;
    }
}

/* Dark mode */
body.dark-mode {
    --background-color: #1a1a1a;
    --card-background: #2d2d2d;
    --text-color: #e0e0e0;
}

body.dark-mode .grade-card,
body.dark-mode .testimonial,
body.dark-mode .secret {
    background: #333;
    border-color: #444;
}

/* Animations */
@keyframes fadeIn {
    from { opacity: 0; transform: translateY(20px); }
    to { opacity: 1; transform: translateY(0); }
}

.fade-in {
    animation: fadeIn 0.5s ease-out forwards;
}