:root {
    --snap-yellow: #FFFC00;
    --snap-black: #1A1A1A;
    --pure-black: #000000;
    --snap-white: #FFFFFF;
    --light-gray: #f5f5f7;
    --medium-gray: #6e6e73;
    --border-color: #e5e5e5;
    --font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif, "Apple Color Emoji", "Segoe UI Emoji", "Segoe UI Symbol";
    --border-radius-lg: 50px;
    --border-radius-md: 24px;
    --border-radius-sm: 12px
}

*,
*::before,
*::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0
}

html {
    scroll-behavior: smooth;
    font-size: 16px
}

body {
    font-family: var(--font-family);
    background-color: var(--snap-white);
    color: var(--snap-black);
    line-height: 1.65;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale
}

.container {
    max-width: 1140px;
    margin: 0 auto;
    padding: 0 20px
}

header {
    padding: 20px 0;
    border-bottom: 1px solid var(--border-color);
    position: sticky;
    top: 0;
    z-index: 1000;
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    background-color: rgba(255, 255, 255, .85)
}

.navbar-container {
    display: flex;
    justify-content: space-between;
    align-items: center
}

.logo {
    font-size: 1.9rem;
    font-weight: 800;
    color: var(--pure-black);
    text-decoration: none;
    display: flex;
    align-items: center;
    gap: 12px
}

img#logo {
    width: 32px;
    height: 32px;
    border-radius: 12px
}

.main-nav ul {
    list-style: none;
    display: flex;
    gap: 35px
}

.main-nav a {
    text-decoration: none;
    color: var(--medium-gray);
    font-weight: 600;
    font-size: 1rem;
    transition: color .3s ease
}

.main-nav a:hover {
    color: var(--pure-black)
}

.hero {
    padding: clamp(4rem, 10vh, 6rem) 0;
    text-align: center;
    background: radial-gradient(circle, rgba(255, 252, 0, .08) 0%, rgba(255, 255, 255, 0) 70%)
}

.hero h1 {
    font-size: clamp(2.8rem, 6vw, 4.2rem);
    color: var(--pure-black);
    margin-bottom: 20px;
    line-height: 1.1;
    font-weight: 800;
    background: linear-gradient(45deg, #2c2c2c, #000000);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent
}

.hero p {
    font-size: clamp(1.1rem, 2.5vw, 1.25rem);
    color: var(--medium-gray);
    max-width: 750px;
    margin: 0 auto 40px
}

.viewer-form {
    display: flex;
    max-width: 600px;
    margin: 0 auto;
    border: 1px solid #ddd;
    border-radius: var(--border-radius-lg);
    padding: 8px;
    background-color: var(--snap-white);
    transition: box-shadow .3s ease, border-color .3s ease;
    box-shadow: 0 5px 20px rgba(0, 0, 0, .06)
}

.viewer-form:focus-within {
    box-shadow: 0 0 0 4px rgba(255, 252, 0, .7);
    border-color: var(--snap-yellow)
}

.username-input {
    flex-grow: 1;
    border: none;
    outline: none;
    padding: 18px 25px;
    font-size: 1.1rem;
    background: transparent;
    color: var(--snap-black)
}

.username-input::placeholder {
    color: #999;
    opacity: 1
}

.btn-view {
    background-color: var(--snap-yellow);
    color: var(--pure-black);
    border: none;
    padding: 18px 35px;
    border-radius: var(--border-radius-lg);
    font-size: 1.1rem;
    font-weight: 700;
    cursor: pointer;
    transition: transform .2s ease;
    display: flex;
    align-items: center;
    gap: 10px;
    white-space: nowrap
}

.btn-view:hover {
    transform: scale(1.03)
}

.loader-container {
    text-align: center;
    padding: 40px 0;
    display: none
}

.spinner {
    border: 4px solid var(--light-gray);
    border-top: 4px solid var(--snap-yellow);
    border-radius: 50%;
    width: 50px;
    height: 50px;
    animation: spin 1s linear infinite;
    margin: 0 auto 20px
}

@keyframes spin {
    0% {
        transform: rotate(0deg)
    }

    100% {
        transform: rotate(360deg)
    }
}

.section {
    padding: clamp(4rem, 10vh, 6rem) 0
}

.bg-light {
    background-color: var(--light-gray)
}

.section-title {
    text-align: center;
    font-size: clamp(2.2rem, 5vw, 3rem);
    margin-bottom: 60px;
    color: var(--pure-black);
    font-weight: 700;
    line-height: 1.2
}

.trust-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 30px;
    text-align: center;
    margin-top: -30px
}

.trust-item {
    padding: 20px
}

.trust-item svg {
    color: var(--pure-black);
    width: 40px;
    height: 40px;
    margin-bottom: 15px
}

.trust-item h3 {
    font-size: 1.2rem;
    margin-bottom: 5px
}

.trust-item p {
    font-size: 1rem;
    color: var(--medium-gray)
}

.how-to-step {
    display: grid;
    grid-template-columns: 1fr 1fr;
    align-items: center;
    gap: 60px;
    margin-bottom: 80px
}

.how-to-step:last-child {
    margin-bottom: 0
}

.how-to-step:nth-child(even) .how-to-image {
    grid-column: 1;
    grid-row: 1
}

.how-to-content .step-label {
    display: inline-block;
    background-color: var(--snap-yellow);
    padding: 5px 15px;
    border-radius: 20px;
    font-size: .9rem;
    font-weight: 700;
    margin-bottom: 20px
}

.how-to-content h3 {
    font-size: 2rem;
    margin-bottom: 15px
}

.how-to-content p {
    font-size: 1.1rem;
    color: var(--medium-gray)
}

.how-to-image img {
    width: 100%;
    height: auto;
    border-radius: var(--border-radius-md);
    box-shadow: 0 15px 40px rgba(0, 0, 0, .1);
    background-color: #e9e9e9
}

.article-section {
    max-width: 850px;
    margin: 0 auto
}

.article-section h3 {
    font-size: 1.5rem;
    margin-top: 40px;
    margin-bottom: 15px
}

.article-section p,
.article-section ul {
    margin-bottom: 20px;
    color: var(--medium-gray)
}

.article-section ul {
    list-style-position: inside;
    padding-left: 10px
}

.article-section li::marker {
    color: var(--snap-yellow);
    font-weight: bold
}

.article-section strong {
    color: var(--snap-black)
}

.reviews-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px
}

.review-card {
    background-color: var(--snap-white);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-md);
    padding: 30px;
    box-shadow: 0 8px 25px rgba(0, 0, 0, .05);
    display: flex;
    flex-direction: column
}

.star-rating {
    color: var(--snap-yellow);
    margin-bottom: 15px;
    font-size: 1.5rem
}

.review-card p {
    font-size: 1rem;
    color: var(--medium-gray);
    margin-bottom: 20px;
    line-height: 1.7;
    flex-grow: 1
}

.review-card .reviewer-name {
    font-weight: 700;
    color: var(--pure-black);
    margin-top: auto
}

.faq-container {
    max-width: 850px;
    margin: 0 auto
}

.faq-item {
    border-bottom: 1px solid var(--border-color)
}

.faq-item summary {
    padding: 25px 10px;
    font-size: 1.2rem;
    font-weight: 600;
    cursor: pointer;
    list-style: none;
    display: flex;
    justify-content: space-between;
    align-items: center;
    transition: color .2s ease
}

.faq-item summary:hover {
    color: var(--pure-black)
}

.faq-item summary::-webkit-details-marker {
    display: none
}

.faq-item summary::after {
    content: '+';
    font-size: 2rem;
    font-weight: 300;
    transition: transform .3s ease;
    color: var(--medium-gray)
}

.faq-item[open] summary {
    color: var(--pure-black)
}

.faq-item[open] summary::after {
    transform: rotate(45deg);
    color: var(--pure-black)
}

.faq-content {
    padding: 0 10px 25px;
    color: var(--medium-gray)
}

.page-header {
    text-align: center;
    padding: clamp(2rem, 5vh, 4rem) 0;
    border-bottom: 1px solid var(--border-color);
    background-color: var(--light-gray)
}

.page-header h1 {
    font-size: clamp(2.5rem, 5vw, 3.5rem);
    font-weight: 700
}

.legal-content {
    max-width: 850px;
    margin: 0 auto
}

.legal-content h2 {
    font-size: 1.8rem;
    margin-top: 2.5rem;
    margin-bottom: 1rem;
    padding-bottom: .5rem;
    border-bottom: 1px solid #eee
}

.legal-content h3 {
    font-size: 1.3rem;
    margin-top: 2rem;
    margin-bottom: .8rem
}

.legal-content p,
.legal-content ul,
.legal-content ol {
    margin-bottom: 1.2rem;
    color: var(--medium-gray)
}

.legal-content ul,
.legal-content ol {
    padding-left: 25px
}

.legal-content strong {
    color: var(--snap-black)
}

.legal-content a {
    color: var(--pure-black);
    text-decoration: underline;
    font-weight: 500
}

.legal-content a:hover {
    text-decoration: none
}

.contact-form {
    max-width: 700px;
    margin: 0 auto;
}

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

.form-group label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 600;
    color: var(--snap-black);
}

.form-group .form-control {
    width: 100%;
    padding: 15px;
    font-size: 1rem;
    font-family: var(--font-family);
    border: 1px solid #ccc;
    border-radius: var(--border-radius-sm);
    background-color: var(--snap-white);
    transition: border-color 0.3s ease, box-shadow 0.3s ease;
}

.form-group .form-control:focus {
    outline: none;
    border-color: var(--snap-yellow);
    box-shadow: 0 0 0 4px rgba(255, 252, 0, 0.5);
}

.form-group textarea.form-control {
    min-height: 150px;
    resize: vertical;
}

.btn-primary {
    display: inline-block;
    width: 100%;
    padding: 18px 30px;
    font-size: 1.1rem;
    font-weight: 700;
    text-align: center;
    color: var(--pure-black);
    background-color: var(--snap-yellow);
    border: none;
    border-radius: var(--border-radius-sm);
    cursor: pointer;
    transition: transform 0.2s ease;
}

.btn-primary:hover {
    transform: scale(1.02);
}

#form-success-message {
    display: none;
    padding: 15px;
    margin-top: 20px;
    background-color: #e8f5e9;
    color: #2e7d32;
    border: 1px solid #a5d6a7;
    border-radius: var(--border-radius-sm);
    text-align: center;
}

footer {
    background-color: var(--pure-black);
    color: var(--snap-white);
    padding: 60px 0 40px;
    text-align: center
}

#link {
    color: #FFFC00;
    text-decoration: none;
    font-weight: bold;
}

footer .logo {
    color: var(--snap-white);
    margin-bottom: 25px;
    display: inline-flex
}

footer .logo svg {
    color: var(--snap-white)
}

.footer-legal-links {
    margin-bottom: 25px
}

.footer-legal-links a {
    color: #ccc;
    text-decoration: none;
    margin: 0 15px;
    font-size: .95rem;
    transition: color .3s ease
}

.footer-legal-links a:hover {
    color: var(--snap-yellow)
}

.footer-disclaimer {
    font-size: .9rem;
    color: var(--medium-gray);
    max-width: 700px;
    margin: 20px auto 0
}

.article-cover {
    width: 100%;
    height: auto;
    max-height: 450px;
    object-fit: cover;
    border-radius: var(--border-radius-md);
    margin-bottom: 40px;
    background-color: var(--light-gray);
}

.key-takeaways {
    background-color: var(--light-gray);
    border-left: 5px solid var(--snap-yellow);
    padding: 25px;
    margin: 30px 0;
    border-radius: 8px;
}

.key-takeaways h3 {
    margin-top: 0;
    margin-bottom: 15px;
    font-size: 1.4rem;
}

.key-takeaways ul {
    padding-left: 20px;
    margin-bottom: 0;
}

.warning-box {
    background-color: #fff9c4;
    border-left: 5px solid #fdd835;
    padding: 20px;
    margin: 20px 0;
    border-radius: 8px;
}

.table{
    overflow: auto;
}

.comparison-table {
    width: 100%;
    border-collapse: collapse;
    margin: 40px 0;
    font-size: 0.95rem;
}

.comparison-table th,
.comparison-table td {
    border: 1px solid var(--border-color);
    padding: 15px;
    text-align: center;
}

.comparison-table th {
    background-color: var(--light-gray);
    font-weight: 700;
}

.comparison-table td:first-child {
    text-align: left;
    font-weight: 600;
}

.final-cta {
    text-align: center;
    background-color: var(--light-gray);
    padding: 40px;
    border-radius: var(--border-radius-md);
    margin-top: 50px;
}

.final-cta h3 {
    margin-top: 0;
    font-size: 1.8rem;
}

.final-cta p {
    margin-bottom: 25px;
}

.toc {
    background-color: #f8f9fa;
    padding: 20px;
    border-radius: 8px;
    margin: 30px 0
}

.toc h3 {
    margin-top: 0;
    font-size: 1.3rem;
    margin-bottom: 15px
}

.toc ul {
    list-style-type: none;
    padding-left: 0;
    margin-bottom: 0
}

.toc li {
    margin-bottom: 10px
}

.toc a {
    text-decoration: none;
    font-weight: 500;
    color: var(--pure-black)
}

.faq-block h4 {
    font-size: 1.2rem;
    margin-top: 20px;
    margin-bottom: 5px;
    color: var(--snap-black)
}

.faq-block p {
    margin-bottom: 15px
}


@media (max-width:992px) {
    .how-to-step {
        grid-template-columns: 1fr;
        gap: 40px
    }

    .how-to-step .how-to-image,
    .how-to-step:nth-child(even) .how-to-image {
        grid-row: 1;
        grid-column: 1
    }

    .how-to-step .how-to-content,
    .how-to-step:nth-child(even) .how-to-content {
        grid-row: 2;
        grid-column: 1;
        text-align: center
    }

    .how-to-image img {
        max-width: 500px;
        margin: 0 auto;
        display: block
    }
}

@media (max-width:820px) {
    .main-nav {
        display: none
    }
}

@media (max-width:768px) {
    .viewer-form {
        flex-direction: column;
        border: none;
        border-radius: 0;
        padding: 0;
        box-shadow: none
    }

    .username-input {
        width: 100%;
        border: 1px solid #ddd;
        border-radius: var(--border-radius-lg);
        margin-bottom: 15px;
        text-align: center
    }

    .btn-view {
        width: 100%;
        justify-content: center
    }
}