/* SEO Landing Page — Dark Mode Design System */
:root {
    --bg-950: #020617;
    --bg-900: #0f172a;
    --bg-800: #1e293b;
    --bg-700: #334155;
    --emerald-500: #10b981;
    --emerald-400: #34d399;
    --cyan-400: #22d3ee;
    --slate-300: #cbd5e1;
    --slate-400: #94a3b8;
    --slate-500: #64748b;
    --slate-600: #475569;
    --white: #ffffff;
    --font: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
}

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

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

body {
    background: var(--bg-900);
    color: var(--white);
    font-family: var(--font);
    line-height: 1.6;
    overflow-x: hidden;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 1.5rem;
}

a {
    text-decoration: none;
    color: inherit;
}

img {
    max-width: 100%;
    display: block;
}

/* --- NAV --- */
.nav {
    position: fixed;
    width: 100%;
    top: 0;
    z-index: 50;
    background: rgba(15, 23, 42, 0.8);
    backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--bg-800);
}

.nav__inner {
    height: 72px;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.nav__logo {
    font-size: 1.25rem;
    font-weight: 700;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.nav__logo .accent {
    color: var(--emerald-500);
}

.nav__actions {
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.btn {
    padding: 0.65rem 1.4rem;
    border-radius: 9999px;
    font-weight: 600;
    font-size: 0.9rem;
    border: none;
    cursor: pointer;
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    transition: all 0.2s;
    font-family: var(--font);
}

.btn-primary {
    background: var(--emerald-500);
    color: var(--white);
}

.btn-primary:hover {
    background: var(--emerald-400);
    transform: scale(1.05);
    box-shadow: 0 8px 25px rgba(16, 185, 129, 0.25);
}

.btn-outline {
    background: transparent;
    color: var(--white);
    border: 1px solid var(--bg-800);
}

.btn-outline:hover {
    background: var(--bg-800);
}

.btn-white {
    background: var(--white);
    color: var(--bg-900);
}

.btn-white:hover {
    background: #f0fdf4;
}

.btn-dark {
    background: var(--bg-800);
    color: var(--white);
    border: 1px solid var(--bg-700);
}

.btn-dark:hover {
    background: var(--bg-700);
}

.btn-lg {
    padding: 1rem 2rem;
    font-size: 1.1rem;
}

/* --- HERO --- */
.hero {
    padding: 14rem 1.5rem 6rem;
    position: relative;
    overflow: hidden;
    text-align: center;
}

/* Dark overlay for text readability */
.hero::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.45);
    z-index: 1;
    pointer-events: none;
}

/* WebGL Shader Canvas Background */
.hero__canvas {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 0;
    pointer-events: none;
}

/* Static fallback for no-WebGL */
.hero__fallback-bg {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 0;
    background: url('/img/hero-1.jpg') center/cover no-repeat;
    pointer-events: none;
}



.hero__inner {
    max-width: 900px;
    margin: 0 auto;
    position: relative;
    z-index: 2;
}


.hero__badge {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.25rem 0.75rem;
    border-radius: 9999px;
    background: var(--bg-800);
    border: 1px solid rgba(255, 255, 255, 0.05);
    color: var(--emerald-400);
    font-size: 0.75rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: 1.5rem;
}

.hero h1 {
    font-size: clamp(2.2rem, 5vw, 4.2rem);
    line-height: 1.1;
    font-weight: 800;
    margin-bottom: 1.5rem;
}

.gradient-text {
    background: linear-gradient(to right, var(--emerald-400), var(--cyan-400));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero__sub {
    font-size: 1.15rem;
    color: var(--slate-400);
    max-width: 650px;
    margin: 0 auto 2rem;
    line-height: 1.7;
}

/* Bio-Age Score Counter Widget */
.bio-age-widget {
    display: flex;
    justify-content: center;
    margin-bottom: 2.5rem;
}

.bio-age-widget__card {
    background: rgba(30, 41, 59, 0.5);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border: 1px solid rgba(255, 255, 255, 0.08);
    border-radius: 1.25rem;
    padding: 1.5rem 2.5rem;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.35rem;
    box-shadow: 0 0 40px rgba(16, 185, 129, 0.08), 0 8px 32px rgba(0, 0, 0, 0.3);
    animation: widgetFloat 4s ease-in-out infinite;
    position: relative;
}

.bio-age-widget__card::before {
    content: '';
    position: absolute;
    inset: -1px;
    border-radius: 1.25rem;
    padding: 1px;
    background: linear-gradient(135deg, rgba(16, 185, 129, 0.3), transparent 50%, rgba(6, 182, 212, 0.2));
    -webkit-mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
    -webkit-mask-composite: xor;
    mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
    mask-composite: exclude;
    pointer-events: none;
}

@keyframes widgetFloat {

    0%,
    100% {
        transform: translateY(0);
    }

    50% {
        transform: translateY(-8px);
    }
}

.bio-age-widget__label {
    font-size: 0.7rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--slate-400);
}

.bio-age-widget__score {
    position: relative;
}

.bio-age-widget__number {
    font-size: 3.5rem;
    font-weight: 800;
    line-height: 1;
    background: linear-gradient(135deg, var(--emerald-400), var(--cyan-400));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.bio-age-widget__delta {
    font-size: 0.8rem;
    font-weight: 600;
    color: var(--emerald-400);
    opacity: 0;
    transform: translateY(5px);
    transition: opacity 0.5s ease, transform 0.5s ease;
}

.bio-age-widget__delta.visible {
    opacity: 1;
    transform: translateY(0);
}

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

/* Trust-Bar number animation */
.trust-bar__number {
    transition: transform 0.3s ease;
}

/* --- TRUST BAR --- */
.trust-bar {
    background: var(--bg-950);
    padding: 3rem 0;
    border-top: 1px solid var(--bg-800);
    border-bottom: 1px solid var(--bg-800);
}

.trust-bar__grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 1.5rem;
    text-align: center;
}

.trust-bar__item {
    padding: 1.5rem;
}

.trust-bar__number {
    font-size: 2.5rem;
    font-weight: 800;
    color: var(--emerald-400);
    margin-bottom: 0.25rem;
}

.trust-bar__label {
    font-size: 0.85rem;
    color: var(--slate-400);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

/* --- SECTIONS --- */
.section {
    padding: 5rem 0;
}

.section--alt {
    background: var(--bg-950);
}

.section__header {
    text-align: center;
    margin-bottom: 3rem;
}

.section__header h2 {
    font-size: clamp(1.75rem, 3vw, 2.5rem);
    font-weight: 700;
    margin-bottom: 0.75rem;
}

.section__header p {
    color: var(--slate-400);
    font-size: 1.05rem;
}

/* --- PROBLEM / SOLUTION --- */
.content-section {
    max-width: 800px;
    margin: 0 auto;
}

.content-section h2 {
    font-size: 1.75rem;
    font-weight: 700;
    margin-bottom: 1.25rem;
    color: var(--white);
}

.content-section p {
    color: var(--slate-300);
    margin-bottom: 1rem;
    line-height: 1.8;
}

.pain-list {
    list-style: none;
    padding: 0;
}

.pain-list li {
    display: flex;
    align-items: flex-start;
    gap: 0.75rem;
    padding: 0.75rem 0;
    color: var(--slate-300);
    font-size: 1rem;
}

.pain-list .icon-x {
    color: #ef4444;
    flex-shrink: 0;
    margin-top: 2px;
}

.benefit-list {
    list-style: none;
    padding: 0;
}

.benefit-list li {
    display: flex;
    align-items: flex-start;
    gap: 0.75rem;
    padding: 0.6rem 0;
    color: var(--slate-300);
}

.benefit-list .icon-check {
    color: var(--emerald-500);
    flex-shrink: 0;
    margin-top: 2px;
}

/* --- PAIN CARD (compact glassmorphism) --- */
.pain-card {
    display: flex;
    gap: 1.5rem;
    align-items: flex-start;
    background: rgba(30, 41, 59, 0.4);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border: 1px solid rgba(51, 65, 85, 0.5);
    border-left: 4px solid var(--emerald-500);
    border-radius: 16px;
    padding: 2rem 2.5rem;
    max-width: 800px;
    margin: 0 auto;
}

.pain-card__icon {
    color: var(--emerald-400);
    flex-shrink: 0;
    margin-top: 0.25rem;
}

.pain-card__content h2 {
    font-size: 1.35rem;
    font-weight: 700;
    margin-bottom: 0.75rem;
    color: var(--white);
}

.pain-card__content p {
    color: var(--slate-300);
    line-height: 1.7;
    margin-bottom: 1rem;
}

.pain-card__empathy {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    color: var(--emerald-400);
    font-weight: 600;
    font-size: 0.9rem;
}

/* --- SOLUTION GRID (3 cards) --- */
.solution-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1.5rem;
    max-width: 960px;
    margin: 0 auto;
}

.solution-card {
    background: rgba(30, 41, 59, 0.3);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border: 1px solid rgba(51, 65, 85, 0.4);
    border-radius: 16px;
    padding: 2rem;
    text-align: center;
    transition: transform 0.3s, box-shadow 0.3s, border-color 0.3s;
}

.solution-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 12px 40px rgba(16, 185, 129, 0.12);
    border-color: var(--emerald-500);
}

.solution-card__icon {
    width: 56px;
    height: 56px;
    border-radius: 14px;
    background: rgba(15, 23, 42, 0.6);
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 1.25rem;
}

.solution-card h3 {
    font-size: 1.05rem;
    font-weight: 700;
    color: var(--white);
    margin-bottom: 0.5rem;
}

.solution-card p {
    color: var(--slate-400);
    font-size: 0.9rem;
    line-height: 1.6;
}

@media (max-width: 768px) {
    .pain-card {
        flex-direction: column;
        padding: 1.5rem;
    }

    .solution-grid {
        grid-template-columns: 1fr;
    }
}

/* --- SHOWCASE / SLIDER --- */
.showcase {
    background: var(--bg-950);
    position: relative;
    overflow: hidden;
    padding: 5rem 0;
}

.showcase__particles {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 0;
    pointer-events: none;
    opacity: 0.6;
}

.showcase__glow {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 800px;
    height: 800px;
    border-radius: 100%;
    filter: blur(120px);
    opacity: 0.08;
    pointer-events: none;
    transition: background 1s;
}

.showcase__layout {
    display: grid;
    grid-template-columns: 260px 1fr;
    gap: 1.5rem;
    align-items: stretch;
    min-height: 600px;
    position: relative;
    z-index: 10;
}

.showcase__tabs {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.showcase__tab {
    display: flex;
    align-items: center;
    gap: 1rem;
    padding: 0.85rem 1rem;
    border-radius: 12px;
    border: 1px solid transparent;
    background: transparent;
    cursor: pointer;
    text-align: left;
    width: 100%;
    color: var(--slate-400);
    transition: all 0.3s;
    font-family: var(--font);
    font-size: 0.9rem;
}

.showcase__tab:hover {
    background: rgba(30, 41, 59, 0.5);
    color: var(--white);
}

.showcase__tab.active {
    background: rgba(15, 23, 42, 0.8);
    border-color: var(--bg-700);
    color: var(--white);
    transform: scale(1.03);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
}

.showcase__tab-icon {
    width: 40px;
    height: 40px;
    border-radius: 8px;
    background: var(--bg-800);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.showcase__tab.active .showcase__tab-icon {
    background: var(--bg-700);
}

.showcase__tab-title {
    font-weight: 700;
    font-size: 0.95rem;
}

.showcase__tab-desc {
    font-size: 0.75rem;
    color: var(--slate-500);
}

.showcase__viewport {
    position: relative;
    background: var(--bg-900);
    border-radius: 16px;
    border: 1px solid var(--bg-800);
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.5);
    overflow: hidden;
    min-height: 100%;
}

.showcase__slide {
    position: absolute;
    inset: 0;
    opacity: 0;
    transition: opacity 0.5s, transform 0.5s;
    transform: scale(1.03);
}

.showcase__slide.active {
    opacity: 1;
    transform: scale(1);
}

.showcase__slide img {
    width: 100%;
    height: 100%;
    object-fit: contain;
    padding: 1rem;
}

.showcase__caption {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    padding: 1.5rem;
    z-index: 5;
}

.showcase__caption-inner {
    background: rgba(15, 23, 42, 0.85);
    backdrop-filter: blur(16px);
    border: 1px solid rgba(51, 65, 85, 0.5);
    padding: 1.25rem 1.5rem;
    border-radius: 12px;
    max-width: 600px;
    margin: 0 auto;
    text-align: center;
}

.showcase__caption-inner p {
    font-size: 1rem;
    color: var(--slate-300);
    font-style: italic;
    margin: 0;
    line-height: 1.6;
}

/* --- FEATURE GRID --- */
.feature-grid {
    display: grid;
    grid-template-columns: repeat(5, 1fr);
    gap: 1.25rem;
}

.feature-card {
    background: var(--bg-900);
    border: 1px solid var(--bg-800);
    padding: 1.75rem 1.25rem;
    border-radius: 16px;
    text-align: center;
    position: relative;
    cursor: default;
    transition: border-color 0.3s;
}

.feature-card:hover {
    border-color: rgba(16, 185, 129, 0.4);
}

.feature-card__icon {
    width: 48px;
    height: 48px;
    background: var(--bg-800);
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 1rem;
}

.feature-card h3 {
    font-size: 0.95rem;
    font-weight: 700;
    color: var(--slate-300);
}

.feature-card__desc {
    display: none;
    position: absolute;
    bottom: calc(100% + 12px);
    left: 50%;
    transform: translateX(-50%);
    width: 240px;
    padding: 1rem;
    background: var(--bg-800);
    border: 1px solid var(--bg-700);
    border-radius: 12px;
    box-shadow: 0 8px 30px rgba(0, 0, 0, 0.5);
    z-index: 20;
    font-size: 0.85rem;
    color: var(--slate-300);
    line-height: 1.5;
    text-align: left;
}

.feature-card:hover .feature-card__desc {
    display: block;
}

.feature-card__desc::after {
    content: '';
    position: absolute;
    top: 100%;
    left: 50%;
    transform: translateX(-50%);
    border: 8px solid transparent;
    border-top-color: var(--bg-800);
}

/* --- HOW IT WORKS --- */
.steps {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
    position: relative;
}

.steps::before {
    content: '';
    position: absolute;
    top: 40px;
    left: 15%;
    right: 15%;
    height: 2px;
    background: linear-gradient(to right, var(--emerald-500), var(--cyan-400));
    opacity: 0.3;
}

.step {
    text-align: center;
    position: relative;
    z-index: 1;
}

.step__number {
    width: 80px;
    height: 80px;
    border-radius: 50%;
    background: var(--bg-800);
    border: 2px solid var(--emerald-500);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.75rem;
    font-weight: 800;
    color: var(--emerald-400);
    margin: 0 auto 1.25rem;
}

.step h3 {
    font-size: 1.15rem;
    font-weight: 700;
    margin-bottom: 0.5rem;
}

.step p {
    color: var(--slate-400);
    font-size: 0.95rem;
}

/* --- PRICING --- */
.pricing-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
    max-width: 1000px;
    margin: 0 auto;
    align-items: start;
}

.pricing-card {
    background: var(--bg-950);
    border: 1px solid var(--bg-800);
    border-radius: 16px;
    padding: 2.25rem;
    display: flex;
    flex-direction: column;
    position: relative;
    transition: transform 0.3s;
}

.pricing-card--popular {
    background: var(--bg-900);
    border-color: var(--emerald-500);
    box-shadow: 0 20px 60px rgba(16, 185, 129, 0.1);
    transform: translateY(-16px);
}

.pricing-card__badge {
    position: absolute;
    top: -12px;
    right: 20px;
    background: var(--emerald-500);
    color: var(--white);
    font-size: 0.7rem;
    font-weight: 700;
    padding: 0.25rem 0.75rem;
    border-radius: 9999px;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.pricing-card h3 {
    font-size: 1.15rem;
    font-weight: 700;
    margin-bottom: 0.5rem;
    color: var(--slate-300);
}

.pricing-card--popular h3 {
    color: var(--emerald-400);
}

.pricing-card__price {
    display: flex;
    align-items: baseline;
    gap: 0.25rem;
    margin-bottom: 1.75rem;
}

.pricing-card__price .amount {
    font-size: 2.75rem;
    font-weight: 800;
}

.pricing-card__price .period {
    color: var(--slate-500);
    font-size: 0.9rem;
}

.pricing-card__features {
    list-style: none;
    padding: 0;
    flex: 1;
    margin-bottom: 1.75rem;
}

.pricing-card__features li {
    display: flex;
    align-items: flex-start;
    gap: 0.75rem;
    padding: 0.5rem 0;
    font-size: 0.9rem;
    color: var(--slate-300);
}

.pricing-card__features .check {
    color: var(--slate-600);
    flex-shrink: 0;
    margin-top: 2px;
}

.pricing-card--popular .pricing-card__features .check {
    color: var(--emerald-500);
}

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

.pricing-card__voucher {
    display: block;
    width: 100%;
    text-align: center;
    font-size: 0.75rem;
    color: var(--slate-500);
    margin-top: 0.75rem;
    text-decoration: underline;
    text-decoration-color: var(--bg-700);
    cursor: pointer;
    background: none;
    border: none;
    font-family: var(--font);
}

.pricing-card__voucher:hover {
    color: var(--slate-300);
}

/* --- TESTIMONIALS --- */
.testimonials-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
    max-width: 1000px;
    margin: 0 auto;
}

.testimonial {
    background: var(--bg-900);
    border: 1px solid var(--bg-800);
    border-radius: 16px;
    padding: 2rem;
}

.testimonial__stars {
    color: #facc15;
    font-size: 1rem;
    margin-bottom: 1rem;
    letter-spacing: 2px;
}

.testimonial__text {
    color: var(--slate-300);
    font-style: italic;
    line-height: 1.7;
    margin-bottom: 1.5rem;
    font-size: 0.95rem;
}

.testimonial__author {
    font-weight: 700;
    font-size: 0.9rem;
}

.testimonial__role {
    color: var(--slate-500);
    font-size: 0.8rem;
}

/* --- EXPERT --- */
.expert {
    max-width: 800px;
    margin: 0 auto;
    background: linear-gradient(135deg, rgba(16, 185, 129, 0.08), rgba(34, 211, 238, 0.05));
    border: 1px solid rgba(16, 185, 129, 0.2);
    border-radius: 16px;
    padding: 2.5rem;
}

.expert__title {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--emerald-400);
    margin-bottom: 1.25rem;
}

.expert p {
    color: var(--slate-300);
    margin-bottom: 1rem;
    line-height: 1.8;
}

.expert__source {
    margin-top: 1.5rem;
    padding-top: 1.25rem;
    border-top: 1px solid rgba(16, 185, 129, 0.15);
    font-size: 0.9rem;
    color: var(--slate-400);
}

.expert__source a {
    color: var(--emerald-400);
    text-decoration: underline;
    text-underline-offset: 2px;
    transition: color 0.2s;
}

.expert__source a:hover {
    color: var(--cyan-400);
}

.expert__domain {
    color: var(--slate-500);
    font-size: 0.8rem;
    margin-left: 0.25rem;
}

/* --- FAQ --- */
.faq-list {
    max-width: 800px;
    margin: 0 auto;
}

.faq-item {
    background: var(--bg-900);
    border: 1px solid var(--bg-800);
    border-radius: 12px;
    margin-bottom: 0.75rem;
    overflow: hidden;
}

.faq-question {
    width: 100%;
    padding: 1.25rem 1.5rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    background: none;
    border: none;
    color: var(--white);
    font-weight: 600;
    font-size: 1rem;
    cursor: pointer;
    font-family: var(--font);
    text-align: left;
}

.faq-question:hover {
    background: rgba(30, 41, 59, 0.3);
}

.faq-question .chevron {
    transition: transform 0.3s;
    color: var(--slate-500);
    flex-shrink: 0;
    margin-left: 1rem;
}

.faq-item.open .faq-question .chevron {
    transform: rotate(180deg);
}

.faq-answer {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s ease-out, padding 0.3s;
}

.faq-item.open .faq-answer {
    max-height: 1200px;
    padding: 0 1.5rem 1.5rem;
}

.faq-answer p {
    color: var(--slate-400);
    line-height: 1.8;
}

/* --- FINAL CTA --- */
.final-cta {
    text-align: center;
    padding: 5rem 1.5rem;
    background: linear-gradient(135deg, var(--bg-950), var(--bg-900));
    border-top: 1px solid var(--bg-800);
}

.final-cta h2 {
    font-size: clamp(1.75rem, 3vw, 2.5rem);
    font-weight: 700;
    margin-bottom: 0.75rem;
}

.final-cta p {
    color: var(--slate-400);
    margin-bottom: 2rem;
    font-size: 1.05rem;
}

.final-cta__trust {
    color: var(--slate-500);
    font-size: 0.85rem;
    margin-top: 1rem;
}

/* --- RELATED LINKS --- */
.related {
    padding: 2rem 0;
}

.related h3 {
    font-size: 1rem;
    color: var(--slate-400);
    margin-bottom: 1rem;
}

.related__links {
    display: flex;
    flex-wrap: wrap;
    gap: 0.6rem;
}

.related__link {
    padding: 0.5rem 1rem;
    background: var(--bg-800);
    border: 1px solid var(--bg-700);
    border-radius: 9999px;
    color: var(--slate-300);
    font-size: 0.85rem;
    transition: all 0.2s;
}

.related__link:hover {
    background: var(--emerald-500);
    color: var(--white);
    border-color: var(--emerald-500);
}

/* --- FOOTER --- */
.footer {
    text-align: center;
    padding: 2.5rem 1.5rem;
    background: var(--bg-950);
    border-top: 1px solid var(--bg-800);
}

.footer p {
    color: var(--slate-500);
    font-size: 0.85rem;
}

.footer a {
    color: var(--slate-500);
    transition: color 0.2s;
}

.footer a:hover {
    color: var(--emerald-400);
}

.footer__legal {
    margin-top: 0.5rem;
}

.footer__meta {
    margin-top: 0.5rem;
    font-size: 0.75rem;
}

/* --- RESPONSIVE --- */
@media (max-width: 1024px) {
    .feature-grid {
        grid-template-columns: repeat(3, 1fr);
    }

    .showcase__layout {
        grid-template-columns: 1fr;
    }

    .showcase__tabs {
        flex-direction: row;
        overflow-x: auto;
        gap: 0.5rem;
        padding-bottom: 0.5rem;
    }

    .showcase__tab {
        min-width: 160px;
        flex-shrink: 0;
    }

    .showcase__tab-desc {
        display: none;
    }

    .showcase__viewport {
        aspect-ratio: 16/9;
    }
}

@media (max-width: 768px) {
    .hero {
        padding: 10rem 1rem 4rem;
    }

    .showcase {
        padding: 3.5rem 0;
    }

    .hero__ctas {
        flex-direction: column;
        align-items: center;
    }

    .hero__ctas .btn {
        width: 100%;
        max-width: 320px;
        justify-content: center;
    }

    .trust-bar__grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 1rem;
    }

    .feature-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 1rem;
    }

    .steps {
        grid-template-columns: 1fr;
        gap: 2rem;
    }

    .steps::before {
        display: none;
    }

    .pricing-grid {
        grid-template-columns: 1fr;
        max-width: 400px;
    }

    .pricing-card--popular {
        transform: none;
    }

    .testimonials-grid {
        grid-template-columns: 1fr;
        max-width: 500px;
        margin: 0 auto;
    }

    .showcase__tabs {
        flex-direction: row;
        overflow-x: auto;
    }

    .section {
        padding: 3.5rem 0;
    }
}

@media (max-width: 480px) {
    .nav__inner {
        height: 60px;
    }

    .hero {
        padding: 8rem 1rem 3rem;
    }

    .btn {
        padding: 0.5rem 1rem;
        font-size: 0.8rem;
    }

    .feature-grid {
        grid-template-columns: 1fr;
    }

    .trust-bar__number {
        font-size: 2rem;
    }

    .showcase {
        padding: 2.5rem 0;
    }

    .section__header h2 {
        font-size: 1.5rem;
    }

    .pricing-card__price .amount {
        font-size: 2rem;
    }
}

/* --- ACCESSIBILITY: Reduced Motion --- */
@media (prefers-reduced-motion: reduce) {

    .bio-age-widget__card {
        animation: none !important;
    }
}

/* --- Bio-Age Widget Mobile --- */
@media (max-width: 768px) {
    .bio-age-widget__card {
        padding: 1.2rem 2rem;
    }

    .bio-age-widget__number {
        font-size: 2.8rem;
    }
}

@media (max-width: 480px) {
    .bio-age-widget__card {
        padding: 1rem 1.5rem;
    }

    .bio-age-widget__number {
        font-size: 2.4rem;
    }

    .bio-age-widget__label {
        font-size: 0.6rem;
    }
}