/* =====================================================================
   LensyAR — Tutorial WebAR Stylesheet (tutorial.css)
   Estética Obsidian Premium, Microinteracciones y Cero Glow IA
   ===================================================================== */

:root {
    --tut-bg-card: rgba(255, 255, 255, 0.03);
    --tut-border-card: rgba(255, 255, 255, 0.08);
    --tut-border-hover: rgba(112, 0, 255, 0.35);
    --tut-accent-purple: #7000FF;
    --tut-accent-cyan: #00D4FF;
    --tut-text-primary: #FFFFFF;
    --tut-text-secondary: rgba(255, 255, 255, 0.72);
    --tut-text-muted: rgba(255, 255, 255, 0.48);
}

.tutorial-page {
    padding: calc(72px + 2rem) 0 5rem;
    min-height: 80vh;
    color: var(--tut-text-primary);
    position: relative;
    overflow-x: hidden;
}

.tutorial-page::before {
    content: '';
    position: absolute;
    top: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 900px;
    height: 480px;
    background: radial-gradient(ellipse at top, rgba(112, 0, 255, 0.16) 0%, rgba(0, 212, 255, 0.06) 45%, transparent 70%);
    pointer-events: none;
    z-index: 0;
}

/* Breadcrumbs */
.tutorial-breadcrumbs {
    position: relative;
    z-index: 1;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.84rem;
    color: var(--tut-text-muted);
    margin-bottom: 1.75rem;
    flex-wrap: wrap;
}

.tutorial-breadcrumbs a {
    color: var(--tut-accent-cyan);
    text-decoration: none;
    transition: color 0.2s ease;
}

.tutorial-breadcrumbs a:hover {
    color: #fff;
    text-decoration: underline;
}

.tutorial-breadcrumbs .sep {
    opacity: 0.4;
}

/* Hero Section (Balanced, Gorgeous & Sleek) */
.tutorial-hero {
    position: relative;
    z-index: 1;
    text-align: center;
    max-width: 820px;
    margin: 0 auto 2.25rem;
}

.tutorial-badge {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.32rem 0.9rem;
    background: rgba(112, 0, 255, 0.14);
    border: 1px solid rgba(112, 0, 255, 0.35);
    border-radius: 999px;
    font-size: 0.78rem;
    font-weight: 600;
    letter-spacing: 0.04em;
    color: #d8b8ff;
    margin-bottom: 1rem;
    text-transform: uppercase;
    box-shadow: 0 2px 10px rgba(112, 0, 255, 0.15);
}

.tutorial-hero h1 {
    font-size: clamp(1.65rem, 3.2vw, 2.35rem);
    font-weight: 700;
    line-height: 1.24;
    margin: 0 auto 0.95rem;
    max-width: 800px;
    letter-spacing: -0.015em;
}

.tutorial-hero h1 .text-gradient {
    background: linear-gradient(135deg, #FFFFFF 40%, #00D4FF 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.tutorial-hero p.lead {
    font-size: 1.02rem;
    line-height: 1.6;
    color: var(--tut-text-secondary);
    max-width: 680px;
    margin: 0 auto 1.5rem;
}

/* Meta Pills Bar (Compact Single-line strip) */
.tutorial-meta-bar {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.55rem 0.85rem;
    flex-wrap: wrap;
    margin-bottom: 0.75rem;
}

.tutorial-meta-item {
    display: inline-flex;
    align-items: center;
    gap: 0.45rem;
    font-size: 0.82rem;
    color: var(--tut-text-secondary);
    background: rgba(255, 255, 255, 0.04);
    border: 1px solid var(--tut-border-card);
    padding: 0.32rem 0.8rem;
    border-radius: 8px;
    backdrop-filter: blur(8px);
}

.tutorial-meta-item i {
    color: var(--tut-accent-cyan);
    font-size: 0.8rem;
}

/* Quick Jump Sticky Navigation */
.tutorial-nav-sticky {
    position: sticky;
    top: 72px;
    z-index: 90;
    background: rgba(10, 10, 14, 0.92);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border-top: 1px solid var(--tut-border-card);
    border-bottom: 1px solid var(--tut-border-card);
    padding: 0.55rem 0;
    margin-bottom: 2.75rem;
}

.tutorial-nav-scroll {
    display: flex;
    gap: 0.45rem;
    overflow-x: auto;
    scrollbar-width: none; /* Firefox */
    -ms-overflow-style: none; /* IE/Edge */
    padding: 0.15rem 0;
    -webkit-overflow-scrolling: touch;
}

.tutorial-nav-scroll::-webkit-scrollbar {
    display: none; /* Chrome, Safari, Opera */
    width: 0;
    height: 0;
}

.tutorial-nav-link {
    display: inline-flex;
    align-items: center;
    gap: 0.35rem;
    white-space: nowrap;
    font-size: 0.8rem;
    color: var(--tut-text-secondary);
    background: rgba(255, 255, 255, 0.04);
    border: 1px solid var(--tut-border-card);
    padding: 0.38rem 0.75rem;
    border-radius: 6px;
    text-decoration: none;
    transition: all 0.2s ease;
}

.tutorial-nav-link:hover,
.tutorial-nav-link.active {
    background: rgba(112, 0, 255, 0.2);
    border-color: var(--tut-border-hover);
    color: #fff;
}

.tutorial-nav-link .step-idx {
    font-weight: 700;
    color: var(--tut-accent-cyan);
}

/* Main Step Cards Container */
.tutorial-steps-container {
    max-width: 920px;
    margin: 0 auto;
    display: flex;
    flex-direction: column;
    gap: 3.5rem;
}

/* Individual Step Card */
.tutorial-step-card {
    background: var(--tut-bg-card);
    border: 1px solid var(--tut-border-card);
    border-radius: 18px;
    padding: 2rem;
    transition: border-color 0.25s ease, box-shadow 0.25s ease;
    position: relative;
    scroll-margin-top: 130px;
}

.tutorial-step-card:hover {
    border-color: rgba(112, 0, 255, 0.25);
}

/* Step Header */
.step-header {
    display: flex;
    align-items: flex-start;
    gap: 1.25rem;
    margin-bottom: 1.5rem;
}

.step-number {
    flex-shrink: 0;
    width: 48px;
    height: 48px;
    border-radius: 12px;
    background: linear-gradient(135deg, rgba(112, 0, 255, 0.22), rgba(0, 212, 255, 0.15));
    border: 1px solid rgba(112, 0, 255, 0.35);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.2rem;
    font-weight: 700;
    color: #FFFFFF;
    letter-spacing: -0.01em;
}

.step-title-wrap {
    flex-grow: 1;
}

.step-subtitle-tag {
    display: block;
    font-size: 0.78rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.04em;
    color: var(--tut-accent-cyan);
    margin-bottom: 0.25rem;
}

.step-title {
    font-size: 1.45rem;
    font-weight: 700;
    line-height: 1.3;
    margin: 0;
    color: #fff;
}

/* Step Narrative Body */
.step-narrative {
    font-size: 1.05rem;
    line-height: 1.7;
    color: var(--tut-text-secondary);
    margin-bottom: 1.5rem;
}

.step-narrative p {
    margin-bottom: 0.9rem;
}

.step-narrative p:last-child {
    margin-bottom: 0;
}

.step-narrative strong {
    color: #FFFFFF;
}

.step-narrative a {
    color: var(--tut-accent-cyan);
    text-decoration: underline;
    text-underline-offset: 3px;
}

.step-narrative a:hover {
    color: #FFFFFF;
}

/* Step Key Points Checklist */
.step-points-list {
    list-style: none;
    padding: 0;
    margin: 0.75rem 0 1.25rem;
    display: flex;
    flex-direction: column;
    gap: 0.6rem;
}

.step-points-list li {
    display: flex;
    align-items: flex-start;
    gap: 0.65rem;
    font-size: 0.98rem;
    color: rgba(255, 255, 255, 0.85);
}

.step-points-list li i {
    color: #10B981;
    margin-top: 0.25rem;
    flex-shrink: 0;
}

/* Callout Boxes */
.tutorial-callout {
    display: flex;
    align-items: flex-start;
    gap: 0.9rem;
    padding: 1.1rem 1.35rem;
    border-radius: 12px;
    margin: 1.25rem 0;
    font-size: 0.95rem;
    line-height: 1.6;
}

.tutorial-callout-icon {
    font-size: 1.2rem;
    flex-shrink: 0;
    margin-top: 0.15rem;
}

.tutorial-callout.tip {
    background: rgba(0, 212, 255, 0.05);
    border: 1px solid rgba(0, 212, 255, 0.2);
    color: rgba(255, 255, 255, 0.9);
}

.tutorial-callout.tip .tutorial-callout-icon {
    color: var(--tut-accent-cyan);
}

.tutorial-callout.info {
    background: rgba(112, 0, 255, 0.06);
    border: 1px solid rgba(112, 0, 255, 0.22);
    color: rgba(255, 255, 255, 0.9);
}

.tutorial-callout.info .tutorial-callout-icon {
    color: #A855F7;
}

.tutorial-callout.warning {
    background: rgba(245, 158, 11, 0.06);
    border: 1px solid rgba(245, 158, 11, 0.22);
    color: rgba(255, 255, 255, 0.9);
}

.tutorial-callout.warning .tutorial-callout-icon {
    color: #F59E0B;
}

.tutorial-callout a {
    color: #FFFFFF;
    font-weight: 600;
    text-decoration: underline;
}

/* Media Showcase Container (GIFs) */
.tutorial-media-wrap {
    position: relative;
    border-radius: 14px;
    overflow: hidden;
    background: #0D0E15;
    border: 1px solid rgba(255, 255, 255, 0.08);
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.4);
    margin-top: 1.25rem;
}

.tutorial-media-img {
    display: block;
    width: 100%;
    height: auto;
    object-fit: cover;
    border-radius: 14px;
    transition: transform 0.3s ease;
    cursor: zoom-in;
}

.tutorial-zoom-hint {
    position: absolute;
    bottom: 12px;
    right: 12px;
    background: rgba(10, 10, 15, 0.75);
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
    border: 1px solid rgba(255, 255, 255, 0.15);
    border-radius: 8px;
    padding: 0.35rem 0.75rem;
    font-size: 0.78rem;
    color: #FFFFFF;
    display: flex;
    align-items: center;
    gap: 0.4rem;
    pointer-events: none;
    opacity: 0.85;
    transition: opacity 0.2s ease;
}

.tutorial-media-wrap:hover .tutorial-zoom-hint {
    opacity: 1;
}

/* Step 10: Final Showcase Grid (Video + Interactive QR) */
.tutorial-demo-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 2rem;
    align-items: stretch;
    margin-top: 1.5rem;
}

@media (max-width: 820px) {
    .tutorial-demo-grid {
        grid-template-columns: 1fr;
    }
}

.tutorial-demo-col {
    background: rgba(255, 255, 255, 0.02);
    border: 1px solid var(--tut-border-card);
    border-radius: 16px;
    padding: 1.75rem;
    display: flex;
    flex-direction: column;
}

.demo-col-header {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    margin-bottom: 1.25rem;
}

.demo-col-badge {
    width: 36px;
    height: 36px;
    border-radius: 10px;
    background: rgba(112, 0, 255, 0.15);
    border: 1px solid rgba(112, 0, 255, 0.3);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--tut-accent-cyan);
    font-size: 1rem;
}

.demo-col-title {
    font-size: 1.2rem;
    font-weight: 700;
    margin: 0;
    color: #FFFFFF;
}

/* Video Player Styling */
.tutorial-video-wrap {
    border-radius: 12px;
    overflow: hidden;
    background: #000;
    border: 1px solid rgba(255, 255, 255, 0.08);
    position: relative;
    aspect-ratio: 9 / 16;
    max-height: 480px;
    margin: 0 auto;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.5);
}

.tutorial-video-player {
    width: 100%;
    height: 100%;
    object-fit: contain;
    background: #050508;
    display: block;
}

.video-caption {
    font-size: 0.88rem;
    color: var(--tut-text-muted);
    text-align: center;
    margin-top: 0.9rem;
    line-height: 1.5;
}

/* QR Live Testing Box */
.tutorial-qr-card {
    text-align: center;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    flex-grow: 1;
}

.qr-preview-container {
    background: #FFFFFF;
    padding: 1rem;
    border-radius: 16px;
    display: inline-block;
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.4);
    margin: 0 auto 1.25rem;
}

.qr-preview-img {
    display: block;
    width: 190px;
    height: 190px;
    image-rendering: pixelated;
}

.qr-instructions-steps {
    list-style: none;
    padding: 0;
    margin: 0 0 1.5rem;
    text-align: left;
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
    width: 100%;
}

.qr-instructions-steps li {
    display: flex;
    align-items: flex-start;
    gap: 0.65rem;
    font-size: 0.92rem;
    color: rgba(255, 255, 255, 0.85);
    background: rgba(255, 255, 255, 0.03);
    padding: 0.65rem 0.85rem;
    border-radius: 8px;
    border: 1px solid rgba(255, 255, 255, 0.05);
}

.qr-num {
    width: 22px;
    height: 22px;
    background: var(--tut-accent-purple);
    color: #fff;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.75rem;
    font-weight: 700;
    flex-shrink: 0;
}

.qr-actions-row {
    display: flex;
    gap: 0.75rem;
    flex-wrap: wrap;
    justify-content: center;
    width: 100%;
}

.btn-qr-action {
    display: inline-flex;
    align-items: center;
    gap: 0.45rem;
    padding: 0.65rem 1.1rem;
    font-size: 0.88rem;
    font-weight: 600;
    border-radius: 8px;
    text-decoration: none;
    transition: all 0.2s ease;
    cursor: pointer;
}

.btn-qr-action.primary {
    background: var(--tut-accent-purple);
    color: #FFFFFF;
    border: 1px solid rgba(255, 255, 255, 0.1);
}

.btn-qr-action.primary:hover {
    background: #8420ff;
    transform: translateY(-1px);
}

.btn-qr-action.secondary {
    background: rgba(255, 255, 255, 0.05);
    color: #FFFFFF;
    border: 1px solid var(--tut-border-card);
}

.btn-qr-action.secondary:hover {
    background: rgba(255, 255, 255, 0.1);
}

/* FAQ Accordion */
.tutorial-faq-section {
    max-width: 920px;
    margin: 4rem auto 0;
}

.tutorial-faq-section h2 {
    font-size: 1.85rem;
    font-weight: 700;
    text-align: center;
    margin-bottom: 2rem;
    letter-spacing: -0.01em;
}

.tutorial-faq-list {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.tutorial-faq-item {
    background: var(--tut-bg-card);
    border: 1px solid var(--tut-border-card);
    border-radius: 12px;
    overflow: hidden;
    transition: border-color 0.2s ease;
}

.tutorial-faq-item[open] {
    border-color: rgba(112, 0, 255, 0.3);
}

.tutorial-faq-item summary {
    padding: 1.25rem 1.5rem;
    font-size: 1.05rem;
    font-weight: 600;
    color: #FFFFFF;
    cursor: pointer;
    list-style: none;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1rem;
    user-select: none;
}

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

.tutorial-faq-item summary i {
    font-size: 0.9rem;
    color: var(--tut-accent-cyan);
    transition: transform 0.25s ease;
}

.tutorial-faq-item[open] summary i {
    transform: rotate(180deg);
}

.tutorial-faq-content {
    padding: 0 1.5rem 1.25rem;
    font-size: 0.98rem;
    line-height: 1.65;
    color: var(--tut-text-secondary);
}

.tutorial-faq-content p:last-child {
    margin-bottom: 0;
}

/* Final Conversion CTA Box */
.tutorial-cta-banner {
    max-width: 920px;
    margin: 4rem auto 0;
    background: linear-gradient(135deg, rgba(112, 0, 255, 0.16) 0%, rgba(10, 10, 18, 0.6) 100%);
    border: 1px solid rgba(112, 0, 255, 0.35);
    border-radius: 20px;
    padding: 3rem 2rem;
    text-align: center;
    position: relative;
    overflow: hidden;
}

.tutorial-cta-banner h2 {
    font-size: clamp(1.6rem, 3.2vw, 2.2rem);
    font-weight: 700;
    margin-bottom: 0.9rem;
    color: #fff;
}

.tutorial-cta-banner p {
    font-size: 1.08rem;
    color: var(--tut-text-secondary);
    max-width: 620px;
    margin: 0 auto 1.8rem;
    line-height: 1.6;
}

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

/* Lightbox Modal for Fullscreen GIF inspection */
.tutorial-lightbox {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    background: rgba(5, 5, 8, 0.92);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    z-index: 9999;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 1.5rem;
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.25s ease, visibility 0.25s ease;
}

.tutorial-lightbox.active {
    opacity: 1;
    visibility: visible;
}

.lightbox-close-btn {
    position: absolute;
    top: 24px;
    right: 28px;
    background: rgba(255, 255, 255, 0.1);
    border: 1px solid rgba(255, 255, 255, 0.15);
    color: #fff;
    font-size: 1.4rem;
    width: 44px;
    height: 44px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: background 0.2s ease;
}

.lightbox-close-btn:hover {
    background: rgba(255, 255, 255, 0.22);
}

.lightbox-content-wrap {
    max-width: 92vw;
    max-height: 86vh;
    display: flex;
    flex-direction: column;
    align-items: center;
}

.lightbox-img {
    max-width: 100%;
    max-height: 80vh;
    object-fit: contain;
    border-radius: 12px;
    box-shadow: 0 12px 40px rgba(0, 0, 0, 0.8);
    border: 1px solid rgba(255, 255, 255, 0.1);
}

.lightbox-caption {
    margin-top: 1rem;
    color: var(--tut-text-secondary);
    font-size: 0.95rem;
    text-align: center;
}

/* Callout Box for Cross-linking in Blogs and Landings */
.tutorial-cta-box {
    background: linear-gradient(135deg, rgba(112, 0, 255, 0.12), rgba(0, 212, 255, 0.06));
    border: 1px solid rgba(112, 0, 255, 0.28);
    border-radius: 16px;
    padding: 1.75rem;
    margin: 2.5rem 0;
    text-align: left;
}

.tutorial-cta-badge {
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
    background: rgba(112, 0, 255, 0.2);
    border: 1px solid rgba(112, 0, 255, 0.4);
    color: #d1a8ff;
    padding: 0.3rem 0.75rem;
    border-radius: 6px;
    font-size: 0.8rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.03em;
    margin-bottom: 0.8rem;
}

.tutorial-cta-box h3 {
    font-size: 1.25rem;
    font-weight: 700;
    color: #FFFFFF;
    margin: 0 0 0.5rem;
}

.tutorial-cta-box p {
    font-size: 0.98rem;
    color: var(--tut-text-secondary);
    line-height: 1.55;
    margin-bottom: 1.25rem;
}

.tutorial-cta-btn {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    background: var(--tut-accent-purple);
    color: #FFFFFF !important;
    text-decoration: none !important;
    padding: 0.75rem 1.4rem;
    font-size: 0.92rem;
    font-weight: 600;
    border-radius: 8px;
    transition: background 0.2s ease, transform 0.2s ease;
}

.tutorial-cta-btn:hover {
    background: #8420ff;
    transform: translateY(-1px);
}

/* Spotlights in Landings */
.tutorial-spotlight-card {
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid rgba(112, 0, 255, 0.22);
    border-radius: 14px;
    padding: 1.5rem;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1.5rem;
    flex-wrap: wrap;
    margin: 2rem 0;
}

.tutorial-spotlight-content h3 {
    font-size: 1.15rem;
    color: #fff;
    margin: 0 0 0.35rem;
}

.tutorial-spotlight-content p {
    font-size: 0.92rem;
    color: var(--tut-text-secondary);
    margin: 0;
}

/* Responsive adjustments */
@media (max-width: 991px) {
    .tutorial-hero h1 {
        font-size: 1.85rem;
    }
    .tutorial-steps-container {
        gap: 2.75rem;
    }
}

@media (max-width: 768px) {
    .tutorial-page {
        padding: calc(60px + 1.25rem) 0 3.5rem;
    }
    .tutorial-page::before {
        width: 100%;
        height: 320px;
    }
    .tutorial-breadcrumbs {
        font-size: 0.78rem;
        margin-bottom: 1.25rem;
    }
    .tutorial-hero {
        margin-bottom: 1.5rem;
    }
    .tutorial-badge {
        font-size: 0.72rem;
        padding: 0.25rem 0.75rem;
        margin-bottom: 0.75rem;
    }
    .tutorial-hero h1 {
        font-size: 1.45rem;
        line-height: 1.26;
        margin-bottom: 0.75rem;
    }
    .tutorial-hero p.lead {
        font-size: 0.92rem;
        line-height: 1.55;
        margin-bottom: 1.15rem;
    }
    .tutorial-meta-bar {
        gap: 0.45rem;
        margin-bottom: 0.5rem;
    }
    .tutorial-meta-item {
        font-size: 0.75rem;
        padding: 0.25rem 0.6rem;
    }
    .tutorial-nav-sticky {
        top: 60px;
        margin-bottom: 1.75rem;
        padding: 0.45rem 0;
    }
    .tutorial-nav-link {
        font-size: 0.75rem;
        padding: 0.3rem 0.65rem;
    }
    .tutorial-step-card {
        padding: 1.35rem;
        border-radius: 14px;
    }
    .step-header {
        gap: 0.85rem;
        margin-bottom: 1.15rem;
    }
    .step-number {
        width: 40px;
        height: 40px;
        font-size: 1rem;
        border-radius: 10px;
    }
    .step-title {
        font-size: 1.2rem;
        line-height: 1.28;
    }
    .tutorial-steps-container {
        gap: 2.25rem;
    }
    .tutorial-cta-banner {
        padding: 2rem 1.25rem;
    }
}

/* =====================================================================
   Footer Styles (Full obsidian dark styling for .seo-footer)
   ===================================================================== */
.seo-footer {
    background: #07070a;
    border-top: 1px solid rgba(255, 255, 255, 0.08);
    padding: 4.5rem 0 2.5rem;
    margin-top: 5rem;
    position: relative;
}

.seo-footer::before {
    content: '';
    position: absolute;
    top: 0;
    left: 10%;
    right: 10%;
    height: 1px;
    background: linear-gradient(90deg, transparent, rgba(112, 0, 255, 0.45), rgba(0, 212, 255, 0.45), transparent);
}

.seo-footer-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 2.5rem 2rem;
    margin-bottom: 3.5rem;
}

.seo-footer h3 {
    font-size: 0.85rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    color: #c99aff;
    margin-bottom: 1.25rem;
}

.seo-footer ul {
    list-style: none !important;
    padding: 0 !important;
    margin: 0 !important;
}

.seo-footer li {
    margin-bottom: 0.7rem;
    list-style: none !important;
}

.seo-footer a {
    color: rgba(255, 255, 255, 0.68);
    text-decoration: none;
    font-size: 0.92rem;
    transition: all 0.2s ease;
    display: inline-block;
}

.seo-footer a:hover {
    color: var(--tut-accent-cyan, #00d4ff);
    transform: translateX(3px);
}

.seo-footer-copy {
    text-align: center;
    font-size: 0.85rem;
    color: rgba(255, 255, 255, 0.45);
    border-top: 1px solid rgba(255, 255, 255, 0.06);
    padding-top: 2rem;
}

.seo-footer-copy a {
    color: rgba(255, 255, 255, 0.65);
    text-decoration: none;
}

.seo-footer-copy a:hover {
    color: #fff;
    text-decoration: underline;
}

@media (max-width: 768px) {
    .seo-footer {
        padding: 3rem 0 2rem;
        margin-top: 3.5rem;
    }
    .seo-footer-grid {
        grid-template-columns: 1fr 1fr;
        gap: 2rem 1.25rem;
        margin-bottom: 2.5rem;
    }
}

@media (max-width: 480px) {
    .seo-footer-grid {
        grid-template-columns: 1fr;
        gap: 1.75rem;
    }
}

/* =====================================================================
   Tutorial Marker Validator Modal & Button
   ===================================================================== */
.tutorial-validator-btn {
    background: linear-gradient(135deg, #7000FF, #00D4FF);
    border: none;
    color: #fff;
    padding: 0.45rem 1rem;
    border-radius: 8px;
    font-weight: 600;
    font-size: 0.84rem;
    cursor: pointer;
    display: inline-flex;
    align-items: center;
    gap: 0.45rem;
    transition: all 0.2s ease;
    box-shadow: 0 4px 14px rgba(112, 0, 255, 0.3);
}

.tutorial-validator-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(0, 212, 255, 0.4);
}

.tutorial-val-modal {
    display: none;
    position: fixed;
    inset: 0;
    z-index: 2000;
    background: rgba(4, 4, 8, 0.88);
    backdrop-filter: blur(14px);
    -webkit-backdrop-filter: blur(14px);
    align-items: center;
    justify-content: center;
    padding: 1.5rem;
}

.tutorial-val-modal.active {
    display: flex;
    animation: tutFadeIn 0.25s ease forwards;
}

.tutorial-val-modal-card {
    background: #0d0d14;
    border: 1px solid rgba(112, 0, 255, 0.35);
    border-radius: 20px;
    max-width: 520px;
    width: 100%;
    padding: 2.2rem 2rem;
    position: relative;
    box-shadow: 0 25px 70px rgba(0, 0, 0, 0.8), 0 0 35px rgba(112, 0, 255, 0.15);
    animation: tutScaleIn 0.25s cubic-bezier(0.16, 1, 0.3, 1) forwards;
}

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

@keyframes tutScaleIn {
    from { transform: scale(0.94); opacity: 0; }
    to { transform: scale(1); opacity: 1; }
}

.val-modal-close-btn {
    position: absolute;
    top: 1rem;
    right: 1.25rem;
    background: rgba(255, 255, 255, 0.06);
    border: 1px solid rgba(255, 255, 255, 0.1);
    color: #fff;
    width: 34px;
    height: 34px;
    border-radius: 50%;
    font-size: 1.4rem;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.2s ease;
    line-height: 1;
}

.val-modal-close-btn:hover {
    background: rgba(239, 68, 68, 0.2);
    border-color: rgba(239, 68, 68, 0.4);
    color: #fca5a5;
    transform: rotate(90deg);
}

.tutorial-val-modal-header {
    text-align: center;
    margin-bottom: 1.5rem;
}

.val-modal-icon-wrap {
    width: 50px;
    height: 50px;
    border-radius: 14px;
    background: linear-gradient(135deg, rgba(112, 0, 255, 0.25), rgba(0, 212, 255, 0.2));
    border: 1px solid rgba(0, 212, 255, 0.4);
    color: var(--tut-accent-cyan);
    font-size: 1.3rem;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 0.75rem;
}

.tutorial-val-dropzone {
    border: 2px dashed rgba(112, 0, 255, 0.35);
    background: rgba(255, 255, 255, 0.02);
    border-radius: 14px;
    padding: 1.8rem 1.5rem;
    text-align: center;
    cursor: pointer;
    transition: all 0.25s ease;
}

.tutorial-val-dropzone:hover {
    border-color: var(--tut-accent-cyan);
    background: rgba(0, 212, 255, 0.04);
    transform: translateY(-2px);
}

.val-drop-icon {
    font-size: 2.4rem;
    color: var(--tut-accent-cyan);
    margin-bottom: 0.35rem;
    display: block;
}

.val-btn-choose {
    display: inline-flex;
    align-items: center;
    gap: 0.45rem;
    background: rgba(255, 255, 255, 0.08);
    border: 1px solid rgba(255, 255, 255, 0.15);
    color: #fff;
    padding: 0.35rem 0.9rem;
    border-radius: 6px;
    font-size: 0.82rem;
    font-weight: 500;
}

.tutorial-val-modal-footer {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1rem;
    margin-top: 1.75rem;
    padding-top: 1.25rem;
    border-top: 1px solid rgba(255, 255, 255, 0.08);
}

.btn-val-close {
    background: rgba(255, 255, 255, 0.06);
    border: 1px solid rgba(255, 255, 255, 0.12);
    color: rgba(255, 255, 255, 0.8);
    padding: 0.45rem 1.2rem;
    border-radius: 7px;
    font-size: 0.85rem;
    cursor: pointer;
    transition: all 0.2s ease;
}

.btn-val-close:hover {
    background: rgba(255, 255, 255, 0.12);
    color: #fff;
}

.btn-val-support-link {
    color: var(--tut-accent-cyan);
    font-size: 0.85rem;
    text-decoration: none;
    display: inline-flex;
    align-items: center;
    gap: 0.35rem;
    transition: color 0.2s ease;
}

.btn-val-support-link:hover {
    color: #fff;
    text-decoration: underline;
}