/* ═══════════════════════════════════════════════════════════
   TUBEROYIYO - Frontend Styles
   Futurista / Tech Industrial / Mobile-First
   ═══════════════════════════════════════════════════════════ */

/* ─── Variables ────────────────────────────────────────── */
:root {
    --c-bg:         #0a0e1a;
    --c-bg-alt:     #0f1525;
    --c-surface:    #151c30;
    --c-surface-2:  #1a2240;
    --c-border:     rgba(255,255,255,0.06);
    --c-border-h:   rgba(0,212,255,0.2);
    --c-text:       #e0e6f0;
    --c-text-dim:   #8892a8;
    --c-text-inv:   #0a0e1a;
    --c-primary:    #00d4ff;
    --c-primary-d:  #00a8cc;
    --c-accent:     #7b2ff7;
    --c-accent-l:   #9b5fff;
    --c-success:    #00e676;
    --c-warning:    #ffa726;
    --c-danger:     #ff5252;
    --c-gradient:   linear-gradient(135deg, var(--c-primary), var(--c-accent));
    --c-glass:      rgba(21,28,48,0.7);
    --c-glass-b:    rgba(255,255,255,0.04);

    --ff-sans:      'Inter', system-ui, -apple-system, sans-serif;
    --ff-mono:      'JetBrains Mono', 'Fira Code', monospace;

    --fs-xs:  0.75rem;
    --fs-sm:  0.875rem;
    --fs-md:  1rem;
    --fs-lg:  1.125rem;
    --fs-xl:  1.5rem;
    --fs-2xl: 2rem;
    --fs-3xl: 2.75rem;
    --fs-4xl: 3.5rem;

    --sp-1: 0.25rem;
    --sp-2: 0.5rem;
    --sp-3: 0.75rem;
    --sp-4: 1rem;
    --sp-6: 1.5rem;
    --sp-8: 2rem;
    --sp-12: 3rem;
    --sp-16: 4rem;
    --sp-20: 5rem;

    --r-sm: 6px;
    --r-md: 10px;
    --r-lg: 16px;
    --r-xl: 24px;

    --shadow: 0 4px 24px rgba(0,0,0,0.3);
    --shadow-lg: 0 8px 40px rgba(0,0,0,0.4);
    --transition: 0.3s cubic-bezier(0.4,0,0.2,1);
}

/* ─── Reset ────────────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body {
    font-family: var(--ff-sans);
    font-size: var(--fs-md);
    line-height: 1.6;
    color: var(--c-text);
    background: var(--c-bg);
    -webkit-font-smoothing: antialiased;
    overflow-x: hidden;
}
a { color: var(--c-primary); text-decoration: none; transition: color var(--transition); }
a:hover { color: var(--c-accent-l); }
img, video { max-width: 100%; height: auto; display: block; }
ul, ol { list-style: none; }
button { cursor: pointer; font-family: inherit; }
input, textarea, select { font-family: inherit; font-size: inherit; }

/* ─── Focus visible ────────────────────────────────────── */
:focus-visible {
    outline: 2px solid var(--c-primary);
    outline-offset: 2px;
}

/* ─── Container ────────────────────────────────────────── */
.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--sp-4);
}
.container--sm { max-width: 800px; }
.text-center { text-align: center; }

/* ─── Buttons ──────────────────────────────────────────── */
.btn {
    display: inline-flex;
    align-items: center;
    gap: var(--sp-2);
    padding: var(--sp-3) var(--sp-6);
    border: none;
    border-radius: var(--r-md);
    font-weight: 600;
    font-size: var(--fs-sm);
    line-height: 1.4;
    transition: all var(--transition);
    cursor: pointer;
    white-space: nowrap;
}
.btn--primary {
    background: var(--c-gradient);
    color: #fff;
    box-shadow: 0 4px 16px rgba(0,212,255,0.25);
}
.btn--primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 24px rgba(0,212,255,0.35);
    color: #fff;
}
.btn--outline {
    background: transparent;
    border: 1.5px solid var(--c-border-h);
    color: var(--c-primary);
}
.btn--outline:hover {
    background: rgba(0,212,255,0.08);
    border-color: var(--c-primary);
    color: var(--c-primary);
}
.btn--sm { padding: var(--sp-2) var(--sp-4); font-size: var(--fs-xs); }
.btn--lg { padding: var(--sp-4) var(--sp-8); font-size: var(--fs-md); }
.btn--disabled, .btn[disabled] { opacity: 0.4; cursor: not-allowed; pointer-events: none; }

/* ─── Navbar ───────────────────────────────────────────── */
.navbar {
    position: fixed;
    top: 0; left: 0; right: 0;
    z-index: 1000;
    background: rgba(10,14,26,0.85);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--c-border);
    transition: background var(--transition);
}
.navbar__inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 64px;
}
.navbar__brand {
    display: flex;
    align-items: center;
    gap: var(--sp-2);
    font-weight: 800;
    font-size: var(--fs-lg);
    color: var(--c-text);
    letter-spacing: 1px;
}
.navbar__brand:hover { color: var(--c-primary); }
.navbar__logo { flex-shrink: 0; }
.navbar__menu {
    display: flex;
    align-items: center;
    gap: var(--sp-1);
}
.navbar__link {
    padding: var(--sp-2) var(--sp-3);
    font-size: var(--fs-sm);
    font-weight: 500;
    color: var(--c-text-dim);
    border-radius: var(--r-sm);
    transition: all var(--transition);
}
.navbar__link:hover {
    color: var(--c-primary);
    background: rgba(0,212,255,0.06);
}
.navbar__toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    padding: var(--sp-2);
}
.navbar__toggle span {
    display: block;
    width: 24px;
    height: 2px;
    background: var(--c-text);
    transition: all var(--transition);
}

@media (max-width: 768px) {
    .navbar__toggle { display: flex; }
    .navbar__menu {
        display: none;
        position: absolute;
        top: 64px;
        left: 0; right: 0;
        flex-direction: column;
        background: rgba(10,14,26,0.95);
        backdrop-filter: blur(20px);
        padding: var(--sp-4);
        border-bottom: 1px solid var(--c-border);
        gap: var(--sp-2);
    }
    .navbar__menu.active { display: flex; }
    .navbar__link { padding: var(--sp-3); width: 100%; }
}

/* ─── Hero ─────────────────────────────────────────────── */
.hero {
    position: relative;
    padding: calc(64px + var(--sp-16)) 0 var(--sp-16);
    min-height: 90vh;
    display: flex;
    align-items: center;
    overflow: hidden;
}
.hero__bg {
    position: absolute;
    inset: 0;
    background:
        radial-gradient(circle at 20% 50%, rgba(0,212,255,0.08) 0%, transparent 50%),
        radial-gradient(circle at 80% 30%, rgba(123,47,247,0.06) 0%, transparent 50%),
        linear-gradient(180deg, var(--c-bg) 0%, var(--c-bg-alt) 100%);
    z-index: 0;
}
.hero__bg::after {
    content: '';
    position: absolute;
    inset: 0;
    background-image:
        linear-gradient(rgba(255,255,255,0.02) 1px, transparent 1px),
        linear-gradient(90deg, rgba(255,255,255,0.02) 1px, transparent 1px);
    background-size: 60px 60px;
}
.hero__inner {
    position: relative;
    z-index: 1;
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--sp-12);
    align-items: center;
}
@media (min-width: 769px) {
    .hero__inner { grid-template-columns: 1fr 1fr; }
}
.hero__badge {
    display: inline-block;
    padding: var(--sp-1) var(--sp-4);
    background: rgba(0,212,255,0.1);
    border: 1px solid rgba(0,212,255,0.2);
    border-radius: 50px;
    font-size: var(--fs-xs);
    font-weight: 600;
    color: var(--c-primary);
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-bottom: var(--sp-4);
}
.hero__title {
    font-size: var(--fs-3xl);
    font-weight: 800;
    line-height: 1.1;
    margin-bottom: var(--sp-4);
    background: var(--c-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}
@media (min-width: 769px) { .hero__title { font-size: var(--fs-4xl); } }
.hero__subtitle {
    font-size: var(--fs-lg);
    color: var(--c-text-dim);
    margin-bottom: var(--sp-8);
    max-width: 500px;
}
.hero__actions { display: flex; flex-wrap: wrap; gap: var(--sp-4); }
.hero__visual { display: flex; justify-content: center; }
.hero__phone {
    position: relative;
    padding: 12px;
    background: linear-gradient(135deg, rgba(0,212,255,0.15), rgba(123,47,247,0.15));
    border-radius: 28px;
    box-shadow: var(--shadow-lg), 0 0 60px rgba(0,212,255,0.1);
}
.hero__phone-screen {
    border-radius: 20px;
    overflow: hidden;
}

/* ─── Metrics ──────────────────────────────────────────── */
.metrics {
    padding: var(--sp-12) 0;
    background: var(--c-bg-alt);
    border-top: 1px solid var(--c-border);
    border-bottom: 1px solid var(--c-border);
}
.metrics__grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--sp-6);
}
@media (min-width: 769px) { .metrics__grid { grid-template-columns: repeat(4, 1fr); } }
.metric { text-align: center; }
.metric__number {
    display: block;
    font-size: var(--fs-2xl);
    font-weight: 800;
    background: var(--c-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}
.metric__label {
    font-size: var(--fs-sm);
    color: var(--c-text-dim);
    margin-top: var(--sp-1);
}

/* ─── Sections ─────────────────────────────────────────── */
.section {
    padding: var(--sp-16) 0;
}
.section--dark {
    background: var(--c-bg-alt);
}
.section__header {
    text-align: center;
    margin-bottom: var(--sp-12);
}
.section__title {
    font-size: var(--fs-2xl);
    font-weight: 800;
    margin-bottom: var(--sp-4);
}
.section__subtitle {
    font-size: var(--fs-lg);
    color: var(--c-text-dim);
    max-width: 600px;
    margin: 0 auto;
}

/* ─── Tool Cards ───────────────────────────────────────── */
.tools-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--sp-6);
}
@media (min-width: 600px) { .tools-grid { grid-template-columns: repeat(2, 1fr); } }
@media (min-width: 900px) { .tools-grid { grid-template-columns: repeat(3, 1fr); } }

.tool-card {
    display: block;
    padding: var(--sp-6);
    background: var(--c-glass);
    backdrop-filter: blur(10px);
    border: 1px solid var(--c-border);
    border-radius: var(--r-lg);
    transition: all var(--transition);
    color: var(--c-text);
}
.tool-card:hover {
    transform: translateY(-4px);
    border-color: var(--c-border-h);
    box-shadow: 0 8px 32px rgba(0,212,255,0.1);
    color: var(--c-text);
}
.tool-card__icon { margin-bottom: var(--sp-4); }
.tool-card__title {
    font-size: var(--fs-lg);
    font-weight: 700;
    margin-bottom: var(--sp-2);
}
.tool-card__desc {
    font-size: var(--fs-sm);
    color: var(--c-text-dim);
    margin-bottom: var(--sp-4);
    line-height: 1.5;
}
.tool-card__badge {
    display: inline-block;
    padding: var(--sp-1) var(--sp-3);
    background: rgba(123,47,247,0.1);
    border: 1px solid rgba(123,47,247,0.2);
    border-radius: 50px;
    font-size: var(--fs-xs);
    font-weight: 600;
    color: var(--c-accent-l);
}

/* ─── Tools Layout (with sidebar) ──────────────────────── */
.tools-layout {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--sp-8);
}
@media (min-width: 1024px) {
    .tools-layout { grid-template-columns: 1fr 300px; }
}
.tools-sidebar { display: none; }
@media (min-width: 1024px) { .tools-sidebar { display: block; } }

/* ─── Filter Buttons ───────────────────────────────────── */
.filter-bar {
    display: flex;
    flex-wrap: wrap;
    gap: var(--sp-2);
    margin-bottom: var(--sp-8);
    justify-content: center;
}
.filter-btn {
    padding: var(--sp-2) var(--sp-4);
    background: var(--c-surface);
    border: 1px solid var(--c-border);
    border-radius: 50px;
    color: var(--c-text-dim);
    font-size: var(--fs-sm);
    font-weight: 500;
    transition: all var(--transition);
    cursor: pointer;
}
.filter-btn:hover, .filter-btn.active {
    background: rgba(0,212,255,0.1);
    border-color: var(--c-primary);
    color: var(--c-primary);
}

/* ─── Post Cards ───────────────────────────────────────── */
.posts-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--sp-6);
}
@media (min-width: 600px) { .posts-grid { grid-template-columns: repeat(2, 1fr); } }
@media (min-width: 900px) { .posts-grid { grid-template-columns: repeat(3, 1fr); } }

.post-card {
    display: flex;
    flex-direction: column;
    padding: var(--sp-6);
    background: var(--c-glass);
    backdrop-filter: blur(10px);
    border: 1px solid var(--c-border);
    border-radius: var(--r-lg);
    transition: all var(--transition);
    color: var(--c-text);
}
.post-card:hover {
    transform: translateY(-4px);
    border-color: var(--c-border-h);
    box-shadow: 0 8px 32px rgba(0,212,255,0.1);
    color: var(--c-text);
}
.post-card__image {
    width: 100%;
    height: 180px;
    object-fit: cover;
    border-radius: var(--r-md);
    margin-bottom: var(--sp-4);
}
.post-card__date {
    font-size: var(--fs-xs);
    color: var(--c-primary);
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin-bottom: var(--sp-2);
}
.post-card__title {
    font-size: var(--fs-lg);
    font-weight: 700;
    margin-bottom: var(--sp-2);
}
.post-card__excerpt {
    font-size: var(--fs-sm);
    color: var(--c-text-dim);
    flex: 1;
    margin-bottom: var(--sp-4);
}
.post-card__link {
    font-size: var(--fs-sm);
    font-weight: 600;
    color: var(--c-primary);
}

/* ─── Download Cards ───────────────────────────────────── */
.downloads-layout {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--sp-8);
}
@media (min-width: 1024px) { .downloads-layout { grid-template-columns: 1fr 300px; } }
.downloads-sidebar { display: none; }
@media (min-width: 1024px) { .downloads-sidebar { display: block; } }

.downloads-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--sp-4);
}
@media (min-width: 600px) { .downloads-grid { grid-template-columns: repeat(2, 1fr); } }

.download-card {
    padding: var(--sp-6);
    background: var(--c-glass);
    border: 1px solid var(--c-border);
    border-radius: var(--r-lg);
    transition: all var(--transition);
}
.download-card:hover {
    border-color: var(--c-border-h);
}
.download-card__title {
    font-size: var(--fs-lg);
    font-weight: 700;
    margin-bottom: var(--sp-2);
}
.download-card__desc {
    font-size: var(--fs-sm);
    color: var(--c-text-dim);
    margin-bottom: var(--sp-3);
}
.download-card__meta {
    display: flex;
    align-items: center;
    gap: var(--sp-3);
    margin-bottom: var(--sp-4);
    flex-wrap: wrap;
}
.download-card__badge {
    display: inline-block;
    padding: var(--sp-1) var(--sp-3);
    background: rgba(123,47,247,0.1);
    border: 1px solid rgba(123,47,247,0.2);
    border-radius: 50px;
    font-size: var(--fs-xs);
    font-weight: 600;
    color: var(--c-accent-l);
}
.download-card__size {
    font-size: var(--fs-xs);
    color: var(--c-text-dim);
}

/* ─── Gallery ──────────────────────────────────────────── */
.gallery-layout {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--sp-8);
}
@media (min-width: 1024px) { .gallery-layout { grid-template-columns: 1fr 300px; } }

.gallery-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
    gap: var(--sp-6);
}
.gallery-item {
    background: var(--c-glass);
    border: 1px solid var(--c-border);
    border-radius: var(--r-lg);
    overflow: hidden;
    transition: all var(--transition);
}
.gallery-item:hover {
    border-color: var(--c-border-h);
    transform: translateY(-2px);
}
.gallery-item__media {
    width: 100%;
    aspect-ratio: 9/16;
    object-fit: cover;
    background: var(--c-surface);
}
.gallery-item__media--placeholder {
    display: flex;
    align-items: center;
    justify-content: center;
    aspect-ratio: 9/16;
    background: var(--c-surface);
}
.gallery-item__media--video {
    aspect-ratio: 16/9;
}
.gallery-item__info {
    padding: var(--sp-4);
}
.gallery-item__info h3 {
    font-size: var(--fs-md);
    font-weight: 600;
    margin-bottom: var(--sp-1);
}
.gallery-item__info p {
    font-size: var(--fs-sm);
    color: var(--c-text-dim);
}

/* ─── Benefits ─────────────────────────────────────────── */
.benefits-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--sp-8);
}
@media (min-width: 769px) { .benefits-grid { grid-template-columns: repeat(3, 1fr); } }

.benefit {
    text-align: center;
    padding: var(--sp-8);
}
.benefit__icon { margin-bottom: var(--sp-4); }
.benefit h3 {
    font-size: var(--fs-lg);
    font-weight: 700;
    margin-bottom: var(--sp-2);
}
.benefit p {
    font-size: var(--fs-sm);
    color: var(--c-text-dim);
}

/* ─── Testimonials ─────────────────────────────────────── */
.testimonials-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--sp-6);
}
@media (min-width: 769px) { .testimonials-grid { grid-template-columns: repeat(3, 1fr); } }

.testimonial {
    padding: var(--sp-6);
    background: var(--c-glass);
    border: 1px solid var(--c-border);
    border-radius: var(--r-lg);
}
.testimonial__stars { margin-bottom: var(--sp-3); display: flex; gap: 2px; }
.testimonial__text {
    font-size: var(--fs-md);
    line-height: 1.6;
    margin-bottom: var(--sp-4);
    font-style: italic;
    color: var(--c-text);
}
.testimonial__author strong { display: block; }
.testimonial__author span {
    font-size: var(--fs-sm);
    color: var(--c-text-dim);
}

/* ─── FAQ ──────────────────────────────────────────────── */
.faq-list {
    display: flex;
    flex-direction: column;
    gap: var(--sp-3);
}
.faq-item {
    background: var(--c-glass);
    border: 1px solid var(--c-border);
    border-radius: var(--r-md);
    overflow: hidden;
    transition: border-color var(--transition);
}
.faq-item[open] { border-color: var(--c-border-h); }
.faq-item__question {
    padding: var(--sp-4) var(--sp-6);
    font-weight: 600;
    cursor: pointer;
    list-style: none;
    display: flex;
    justify-content: space-between;
    align-items: center;
}
.faq-item__question::-webkit-details-marker { display: none; }
.faq-item__question::after {
    content: '+';
    font-size: var(--fs-xl);
    color: var(--c-primary);
    transition: transform var(--transition);
}
.faq-item[open] .faq-item__question::after {
    transform: rotate(45deg);
}
.faq-item__answer {
    padding: 0 var(--sp-6) var(--sp-4);
    color: var(--c-text-dim);
    line-height: 1.6;
}

/* ─── CTA Section ──────────────────────────────────────── */
.cta-section {
    padding: var(--sp-16) 0;
    background:
        radial-gradient(circle at 50% 50%, rgba(0,212,255,0.06) 0%, transparent 70%),
        var(--c-bg);
}
.cta-section__title {
    font-size: var(--fs-2xl);
    font-weight: 800;
    margin-bottom: var(--sp-4);
}
.cta-section__text {
    font-size: var(--fs-lg);
    color: var(--c-text-dim);
    margin-bottom: var(--sp-8);
}

/* ─── Contact Cards ────────────────────────────────────── */
.contact-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: var(--sp-6);
}
.contact-card {
    display: flex;
    align-items: center;
    gap: var(--sp-4);
    padding: var(--sp-6);
    background: var(--c-glass);
    border: 1px solid var(--c-border);
    border-radius: var(--r-lg);
    transition: all var(--transition);
    color: var(--c-text);
}
.contact-card:hover {
    transform: translateY(-2px);
    border-color: var(--c-border-h);
    color: var(--c-text);
}
.contact-card__icon {
    flex-shrink: 0;
    width: 48px;
    height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: var(--r-md);
    background: rgba(0,212,255,0.1);
}
.contact-card__info h3 {
    font-weight: 600;
    margin-bottom: var(--sp-1);
}
.contact-card__info p {
    font-size: var(--fs-sm);
    color: var(--c-text-dim);
}

/* ─── Products Grid ────────────────────────────────────── */
.products-layout {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--sp-8);
}
@media (min-width: 1024px) { .products-layout { grid-template-columns: 1fr 300px; } }

.products-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--sp-6);
}
@media (min-width: 600px) { .products-grid { grid-template-columns: repeat(2, 1fr); } }

.product-card {
    padding: var(--sp-6);
    background: var(--c-glass);
    border: 1px solid var(--c-border);
    border-radius: var(--r-lg);
    transition: all var(--transition);
}
.product-card:hover { border-color: var(--c-border-h); }
.product-card__badge {
    display: inline-block;
    padding: var(--sp-1) var(--sp-3);
    background: rgba(0,212,255,0.1);
    border: 1px solid rgba(0,212,255,0.2);
    border-radius: 50px;
    font-size: var(--fs-xs);
    font-weight: 600;
    color: var(--c-primary);
    margin-bottom: var(--sp-3);
}
.product-card__title {
    font-size: var(--fs-lg);
    font-weight: 700;
    margin-bottom: var(--sp-2);
}
.product-card__desc {
    font-size: var(--fs-sm);
    color: var(--c-text-dim);
    margin-bottom: var(--sp-4);
}

/* ─── Breadcrumb ───────────────────────────────────────── */
.breadcrumb {
    display: flex;
    flex-wrap: wrap;
    gap: var(--sp-2);
    padding: calc(64px + var(--sp-6)) 0 var(--sp-4);
    font-size: var(--fs-sm);
    color: var(--c-text-dim);
}
.breadcrumb a { color: var(--c-text-dim); }
.breadcrumb a:hover { color: var(--c-primary); }
.breadcrumb__sep { opacity: 0.4; }

/* ─── Detail Pages ─────────────────────────────────────── */
.detail-header {
    padding: var(--sp-8) 0;
}
.detail-header__title {
    font-size: var(--fs-2xl);
    font-weight: 800;
    margin-bottom: var(--sp-4);
}
.detail-content {
    padding-bottom: var(--sp-12);
    font-size: var(--fs-md);
    line-height: 1.8;
    color: var(--c-text);
}
.detail-content p { margin-bottom: var(--sp-4); }
.detail-content strong { color: var(--c-text); }

.detail-meta {
    display: flex;
    flex-wrap: wrap;
    gap: var(--sp-4);
    font-size: var(--fs-sm);
    color: var(--c-text-dim);
    margin-bottom: var(--sp-6);
}

.benefits-list {
    list-style: none;
    display: grid;
    gap: var(--sp-3);
}
.benefits-list li {
    display: flex;
    align-items: flex-start;
    gap: var(--sp-3);
    padding: var(--sp-3);
    background: rgba(0,212,255,0.04);
    border-radius: var(--r-md);
    border: 1px solid var(--c-border);
}
.benefits-list li svg { flex-shrink: 0; margin-top: 2px; }
.back-link {
    display: inline-flex;
    align-items: center;
    gap: var(--sp-2);
    color: var(--c-text-dim);
    font-size: var(--fs-sm);
    font-weight: 500;
    margin-top: var(--sp-6);
}
.back-link:hover { color: var(--c-primary); }

/* ─── 404 Page ─────────────────────────────────────────── */
.section--404 {
    padding-top: calc(64px + var(--sp-16));
    min-height: 70vh;
    display: flex;
    align-items: center;
}
.error-page { text-align: center; }
.error-page__number {
    font-size: 8rem;
    font-weight: 900;
    line-height: 1;
    color: var(--c-surface-2);
}
.error-page__number--accent {
    background: var(--c-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

/* ─── Footer ───────────────────────────────────────────── */
.footer {
    padding: var(--sp-16) 0 var(--sp-8);
    background: var(--c-bg-alt);
    border-top: 1px solid var(--c-border);
}
.footer__grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--sp-8);
    margin-bottom: var(--sp-12);
}
@media (min-width: 769px) { .footer__grid { grid-template-columns: 2fr 1fr 1fr; } }

.footer__title {
    font-size: var(--fs-xl);
    font-weight: 800;
    margin-bottom: var(--sp-3);
    background: var(--c-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}
.footer__text {
    font-size: var(--fs-sm);
    color: var(--c-text-dim);
    margin-bottom: var(--sp-6);
    max-width: 400px;
}
.footer__nav h4, .footer__social h4 {
    font-size: var(--fs-md);
    font-weight: 600;
    margin-bottom: var(--sp-4);
}
.footer__nav ul { display: flex; flex-direction: column; gap: var(--sp-2); }
.footer__nav a {
    font-size: var(--fs-sm);
    color: var(--c-text-dim);
}
.footer__nav a:hover { color: var(--c-primary); }
.footer__social-links {
    display: flex;
    gap: var(--sp-3);
}
.social-icon {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    background: var(--c-surface);
    border: 1px solid var(--c-border);
    border-radius: var(--r-md);
    color: var(--c-text-dim);
    transition: all var(--transition);
}
.social-icon:hover {
    background: rgba(0,212,255,0.1);
    border-color: var(--c-primary);
    color: var(--c-primary);
}
.footer__bottom {
    text-align: center;
    padding-top: var(--sp-8);
    border-top: 1px solid var(--c-border);
    font-size: var(--fs-sm);
    color: var(--c-text-dim);
}

/* ─── WhatsApp Float ───────────────────────────────────── */
.whatsapp-float {
    position: fixed;
    bottom: 24px;
    right: 24px;
    width: 56px;
    height: 56px;
    background: #25D366;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 4px 16px rgba(37,211,102,0.4);
    z-index: 999;
    transition: all var(--transition);
}
.whatsapp-float:hover {
    transform: scale(1.1);
    box-shadow: 0 6px 24px rgba(37,211,102,0.5);
}

/* ─── Ad Slots ─────────────────────────────────────────── */
.ad-slot {
    margin: var(--sp-4) 0;
    text-align: center;
}
.ad-slot:empty { display: none; }

/* ─── Page Header ──────────────────────────────────────── */
.page-header {
    padding: calc(64px + var(--sp-12)) 0 var(--sp-8);
    background: var(--c-bg-alt);
    border-bottom: 1px solid var(--c-border);
    text-align: center;
}
.page-header__title {
    font-size: var(--fs-2xl);
    font-weight: 800;
    margin-bottom: var(--sp-2);
}
.page-header__subtitle {
    font-size: var(--fs-lg);
    color: var(--c-text-dim);
}

/* ─── Animations ───────────────────────────────────────── */
.fade-in {
    opacity: 0;
    transform: translateY(20px);
    transition: opacity 0.6s ease, transform 0.6s ease;
}
.fade-in.visible {
    opacity: 1;
    transform: translateY(0);
}

/* ─── Utility ──────────────────────────────────────────── */
.text-muted { color: var(--c-text-dim); }
.empty-state {
    text-align: center;
    padding: var(--sp-12);
    color: var(--c-text-dim);
}
.downloads-filter, .tools-filter { text-align: center; margin-bottom: var(--sp-8); }