/* ==========================================
   ZapAutonomo - Landing Page Styles
   ========================================== */

/* CSS Variables */
:root {
    /* Colors */
    --color-primary: #00d4aa;
    --color-primary-dark: #00b894;
    --color-primary-light: #00e6bb;

    --color-dark: #0D0D0D;
    --color-dark-light: #1A1A1A;
    --color-dark-lighter: #262626;

    --color-white: #FFFFFF;
    --color-gray-100: #F5F5F5;
    --color-gray-200: #E5E5E5;
    --color-gray-300: #D4D4D4;
    --color-gray-400: #A3A3A3;
    --color-gray-500: #737373;
    --color-gray-600: #525252;
    --color-gray-700: #404040;
    --color-gray-800: #262626;

    /* Typography */
    --font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;

    /* Spacing */
    --section-padding: 100px 0;
    --container-padding: 0 24px;

    /* Transitions */
    --transition-fast: 0.2s ease;
    --transition-normal: 0.3s ease;
    --transition-slow: 0.5s ease;

    /* Border Radius */
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 16px;
    --radius-xl: 24px;
    --radius-full: 9999px;

    /* Shadows */
    --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.1);
    --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 15px rgba(0, 0, 0, 0.2);
    --shadow-xl: 0 20px 25px rgba(0, 0, 0, 0.3);
    --shadow-glow: 0 0 40px rgba(0, 212, 170, 0.3);
}

/* Reset & Base */
*, *::before, *::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
    scroll-padding-top: 80px;
}

body {
    font-family: var(--font-family);
    font-size: 16px;
    line-height: 1.6;
    color: var(--color-white);
    background-color: var(--color-dark);
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

a {
    text-decoration: none;
    color: inherit;
    transition: var(--transition-fast);
}

ul {
    list-style: none;
}

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

button {
    font-family: inherit;
    cursor: pointer;
    border: none;
    outline: none;
}

input, textarea {
    font-family: inherit;
    outline: none;
}

/* Container */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: var(--container-padding);
}

/* Typography Utilities */
.text-gradient {
    background: linear-gradient(135deg, var(--color-primary), var(--color-primary-light));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 12px 24px;
    font-size: 14px;
    font-weight: 600;
    border-radius: var(--radius-full);
    transition: var(--transition-normal);
    cursor: pointer;
}

.btn--primary {
    background: linear-gradient(135deg, var(--color-primary), var(--color-primary-dark));
    color: var(--color-dark);
    box-shadow: var(--shadow-glow);
}

.btn--primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 0 60px rgba(0, 212, 170, 0.4);
}

.btn--outline {
    background: transparent;
    color: var(--color-white);
    border: 2px solid var(--color-gray-700);
}

.btn--outline:hover {
    border-color: var(--color-primary);
    color: var(--color-primary);
}

.btn--large {
    padding: 16px 32px;
    font-size: 16px;
}

.btn--block {
    width: 100%;
}

/* ==========================================
   Header
   ========================================== */
.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    padding: 16px 0;
    transition: var(--transition-normal);
}

.header.scrolled {
    background: rgba(13, 13, 13, 0.9);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--color-gray-800);
}

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

.nav__logo-img {
    height: 80px;
}

.nav__list {
    display: flex;
    align-items: center;
    gap: 32px;
}

.nav__link {
    font-size: 14px;
    font-weight: 500;
    color: var(--color-gray-400);
    position: relative;
}

.nav__link::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--color-primary);
    transition: var(--transition-normal);
}

.nav__link:hover,
.nav__link.active {
    color: var(--color-primary);
}

.nav__link:hover::after,
.nav__link.active::after {
    width: 100%;
}

.nav__buttons {
    display: flex;
    align-items: center;
    gap: 16px;
}

.nav__toggle,
.nav__close {
    display: none;
    color: var(--color-white);
    cursor: pointer;
}

/* Mobile Menu */
@media (max-width: 968px) {
    .nav__menu {
        position: fixed;
        top: 0;
        right: -100%;
        width: 80%;
        max-width: 400px;
        height: 100vh;
        background: var(--color-dark-light);
        padding: 80px 40px 40px;
        transition: var(--transition-normal);
        z-index: 100;
    }

    .nav__menu.active {
        right: 0;
    }

    .nav__list {
        flex-direction: column;
        align-items: flex-start;
        gap: 24px;
    }

    .nav__link {
        font-size: 18px;
    }

    .nav__toggle {
        display: block;
    }

    .nav__close {
        display: block;
        position: absolute;
        top: 24px;
        right: 24px;
    }

    .nav__buttons .btn {
        display: none;
    }
}

/* ==========================================
   Hero Section
   ========================================== */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    padding: 120px 0 80px;
    overflow: hidden;
}

.hero__bg {
    position: absolute;
    inset: 0;
    pointer-events: none;
}

.hero__glow {
    position: absolute;
    border-radius: 50%;
    filter: blur(100px);
    opacity: 0.5;
}

.hero__glow--1 {
    top: 10%;
    left: 10%;
    width: 400px;
    height: 400px;
    background: var(--color-primary);
    opacity: 0.1;
    animation: float 8s ease-in-out infinite;
}

.hero__glow--2 {
    bottom: 10%;
    right: 10%;
    width: 500px;
    height: 500px;
    background: var(--color-primary-dark);
    opacity: 0.08;
    animation: float 10s ease-in-out infinite reverse;
}

@keyframes float {
    0%, 100% { transform: translate(0, 0); }
    50% { transform: translate(30px, -30px); }
}

.hero__container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
}

.hero__badge {
    display: inline-block;
    padding: 8px 16px;
    background: rgba(0, 212, 170, 0.1);
    border: 1px solid rgba(0, 212, 170, 0.3);
    border-radius: var(--radius-full);
    font-size: 12px;
    font-weight: 600;
    color: var(--color-primary);
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-bottom: 24px;
}

.hero__title {
    font-size: clamp(40px, 5vw, 64px);
    font-weight: 800;
    line-height: 1.1;
    margin-bottom: 24px;
}

.hero__description {
    font-size: 18px;
    color: var(--color-gray-400);
    max-width: 500px;
    margin-bottom: 32px;
}

.hero__cta {
    display: flex;
    gap: 16px;
    flex-wrap: wrap;
    margin-bottom: 48px;
}

.hero__stats {
    display: flex;
    gap: 40px;
}

.hero__stat {
    text-align: left;
}

.hero__stat-number {
    display: block;
    font-size: 32px;
    font-weight: 700;
    color: var(--color-primary);
}

.hero__stat-number::after {
    content: '+';
}

.hero__stat-label {
    font-size: 14px;
    color: var(--color-gray-500);
}

/* Phone Mockup */
.hero__visual {
    display: flex;
    justify-content: center;
    align-items: center;
}

.hero__phone {
    width: 300px;
    background: var(--color-dark-light);
    border-radius: 40px;
    padding: 12px;
    box-shadow: var(--shadow-xl), 0 0 100px rgba(0, 212, 170, 0.1);
    animation: phoneFloat 6s ease-in-out infinite;
}

@keyframes phoneFloat {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-20px); }
}

.phone__header {
    display: flex;
    justify-content: center;
    padding: 8px 0;
}

.phone__notch {
    width: 100px;
    height: 24px;
    background: var(--color-dark);
    border-radius: 20px;
}

.phone__screen {
    background: var(--color-dark);
    border-radius: 28px;
    overflow: hidden;
    height: 500px;
}

.chat {
    height: 100%;
    display: flex;
    flex-direction: column;
}

.chat__header {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 16px;
    background: var(--color-dark-lighter);
    border-bottom: 1px solid var(--color-gray-800);
}

.chat__avatar {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: var(--color-primary);
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
}

.chat__avatar img {
    width: 24px;
    height: 24px;
    object-fit: contain;
}

.chat__name {
    font-weight: 600;
    font-size: 14px;
}

.chat__status {
    font-size: 12px;
    color: var(--color-primary);
}

.chat__messages {
    flex: 1;
    padding: 16px;
    display: flex;
    flex-direction: column;
    gap: 12px;
    overflow-y: auto;
}

.message {
    max-width: 85%;
    padding: 12px 16px;
    border-radius: 16px;
    font-size: 13px;
    line-height: 1.5;
    position: relative;
    animation: messageIn 0.3s ease;
}

@keyframes messageIn {
    from {
        opacity: 0;
        transform: translateY(10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.message--received {
    background: var(--color-dark-lighter);
    align-self: flex-start;
    border-bottom-left-radius: 4px;
}

.message--sent {
    background: var(--color-primary);
    color: var(--color-dark);
    align-self: flex-end;
    border-bottom-right-radius: 4px;
}

.message__time {
    display: block;
    font-size: 10px;
    opacity: 0.7;
    margin-top: 4px;
    text-align: right;
}

.message--typing {
    padding: 16px 20px;
}

.typing {
    display: flex;
    gap: 4px;
}

.typing span {
    width: 8px;
    height: 8px;
    background: var(--color-dark);
    border-radius: 50%;
    animation: typing 1.4s ease-in-out infinite;
}

.typing span:nth-child(2) { animation-delay: 0.2s; }
.typing span:nth-child(3) { animation-delay: 0.4s; }

@keyframes typing {
    0%, 60%, 100% { transform: translateY(0); }
    30% { transform: translateY(-8px); }
}

/* Scroll Indicator */
.hero__scroll {
    position: absolute;
    bottom: 40px;
    left: 50%;
    transform: translateX(-50%);
}

.scroll-indicator {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 8px;
    color: var(--color-gray-500);
    font-size: 12px;
    animation: scrollBounce 2s ease-in-out infinite;
}

@keyframes scrollBounce {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(10px); }
}

/* Hero Responsive */
@media (max-width: 968px) {
    .hero__container {
        grid-template-columns: 1fr;
        text-align: center;
    }

    .hero__description {
        margin-left: auto;
        margin-right: auto;
    }

    .hero__cta {
        justify-content: center;
    }

    .hero__stats {
        justify-content: center;
    }

    .hero__visual {
        order: -1;
    }

    .hero__phone {
        width: 260px;
    }

    .phone__screen {
        height: 400px;
    }

    .hero__scroll {
        display: none;
    }
}

/* ==========================================
   Section Header
   ========================================== */
.section__header {
    text-align: center;
    max-width: 700px;
    margin: 0 auto 60px;
}

.section__badge {
    display: inline-block;
    padding: 8px 16px;
    background: rgba(0, 212, 170, 0.1);
    border: 1px solid rgba(0, 212, 170, 0.3);
    border-radius: var(--radius-full);
    font-size: 12px;
    font-weight: 600;
    color: var(--color-primary);
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-bottom: 24px;
}

.section__title {
    font-size: clamp(32px, 4vw, 48px);
    font-weight: 800;
    line-height: 1.2;
    margin-bottom: 16px;
}

.section__description {
    font-size: 18px;
    color: var(--color-gray-400);
}

/* ==========================================
   Features Section
   ========================================== */
.features {
    padding: var(--section-padding);
    background: linear-gradient(180deg, var(--color-dark) 0%, var(--color-dark-light) 100%);
}

.features__grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}

.feature-card {
    background: var(--color-dark);
    border: 1px solid var(--color-gray-800);
    border-radius: var(--radius-lg);
    padding: 32px;
    transition: var(--transition-normal);
}

.feature-card:hover {
    border-color: var(--color-primary);
    transform: translateY(-8px);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.3);
}

.feature-card__icon {
    width: 64px;
    height: 64px;
    background: rgba(0, 212, 170, 0.1);
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 20px;
    color: var(--color-primary);
}

.feature-card__title {
    font-size: 20px;
    font-weight: 700;
    margin-bottom: 12px;
}

.feature-card__title span {
    color: var(--color-gray-500);
}

.feature-card__description {
    font-size: 14px;
    color: var(--color-gray-400);
    line-height: 1.7;
}

@media (max-width: 968px) {
    .features__grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 640px) {
    .features__grid {
        grid-template-columns: 1fr;
    }
}

/* ==========================================
   How It Works Section
   ========================================== */
.how-it-works {
    padding: var(--section-padding);
}

.steps {
    max-width: 900px;
    margin: 0 auto;
    display: flex;
    flex-direction: column;
    gap: 40px;
}

.step {
    display: flex;
    align-items: flex-start;
    gap: 32px;
    padding: 32px;
    background: var(--color-dark-light);
    border: 1px solid var(--color-gray-800);
    border-radius: var(--radius-lg);
    transition: var(--transition-normal);
}

.step:hover {
    border-color: var(--color-primary);
}

.step:nth-child(even) {
    flex-direction: row-reverse;
    text-align: right;
}

.step__number {
    font-size: 64px;
    font-weight: 800;
    color: var(--color-gray-800);
    line-height: 1;
    min-width: 100px;
}

.step:hover .step__number {
    color: var(--color-primary);
}

.step__title {
    font-size: 24px;
    font-weight: 700;
    margin-bottom: 12px;
}

.step__title span {
    color: var(--color-primary);
}

.step__description {
    font-size: 16px;
    color: var(--color-gray-400);
    line-height: 1.7;
}

@media (max-width: 768px) {
    .step,
    .step:nth-child(even) {
        flex-direction: column;
        text-align: center;
    }

    .step__number {
        font-size: 48px;
        min-width: auto;
    }
}

/* ==========================================
   Pricing Section
   ========================================== */
.pricing {
    padding: var(--section-padding);
    background: linear-gradient(180deg, var(--color-dark) 0%, var(--color-dark-light) 100%);
}

.pricing__grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 32px;
    align-items: stretch;
    max-width: 800px;
    margin: 0 auto;
}

.pricing-card {
    background: var(--color-dark);
    border: 1px solid var(--color-gray-800);
    border-radius: var(--radius-xl);
    padding: 40px 32px;
    display: flex;
    flex-direction: column;
    transition: var(--transition-normal);
    position: relative;
}

.pricing-card:hover {
    border-color: var(--color-gray-700);
    transform: translateY(-8px);
}

.pricing-card--featured {
    border-color: var(--color-primary);
    background: linear-gradient(180deg, rgba(0, 212, 170, 0.1) 0%, var(--color-dark) 100%);
}

.pricing-card--featured:hover {
    border-color: var(--color-primary-light);
}

.pricing-card__badge {
    position: absolute;
    top: -12px;
    left: 50%;
    transform: translateX(-50%);
    background: var(--color-primary);
    color: var(--color-dark);
    font-size: 12px;
    font-weight: 700;
    padding: 6px 16px;
    border-radius: var(--radius-full);
}

.pricing-card__header {
    margin-bottom: 24px;
}

.pricing-card__name {
    font-size: 24px;
    font-weight: 700;
    margin-bottom: 8px;
}

.pricing-card__description {
    font-size: 14px;
    color: var(--color-gray-500);
}

.pricing-card__price {
    margin-bottom: 32px;
    display: flex;
    align-items: flex-start;
    gap: 4px;
}

.pricing-card__currency {
    font-size: 20px;
    font-weight: 600;
    color: var(--color-gray-400);
    margin-top: 8px;
}

.pricing-card__value {
    font-size: 56px;
    font-weight: 800;
    line-height: 1;
}

.pricing-card--featured .pricing-card__value {
    color: var(--color-primary);
}

.pricing-card__period {
    font-size: 16px;
    color: var(--color-gray-500);
    align-self: flex-end;
    margin-bottom: 8px;
}

.pricing-card__features {
    flex: 1;
    margin-bottom: 32px;
}

.pricing-card__features li {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px 0;
    border-bottom: 1px solid var(--color-gray-800);
    font-size: 14px;
    color: var(--color-gray-300);
}

.pricing-card__features li:last-child {
    border-bottom: none;
}

.pricing-card__features svg {
    color: var(--color-primary);
    flex-shrink: 0;
}

@media (max-width: 768px) {
    .pricing__grid {
        grid-template-columns: 1fr;
        max-width: 400px;
    }

    .pricing-card--featured {
        order: -1;
    }
}

/* ==========================================
   CTA Section
   ========================================== */
.cta {
    padding: var(--section-padding);
    position: relative;
    overflow: hidden;
}

.cta__bg {
    position: absolute;
    inset: 0;
    pointer-events: none;
}

.cta__glow {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 600px;
    height: 600px;
    background: var(--color-primary);
    border-radius: 50%;
    filter: blur(150px);
    opacity: 0.1;
}

.cta__content {
    position: relative;
    max-width: 600px;
    margin: 0 auto;
    text-align: center;
}

.cta__title {
    font-size: clamp(32px, 4vw, 48px);
    font-weight: 800;
    line-height: 1.2;
    margin-bottom: 16px;
}

.cta__description {
    font-size: 18px;
    color: var(--color-gray-400);
    margin-bottom: 40px;
}

.cta__form {
    display: flex;
    flex-direction: column;
    gap: 16px;
    margin-bottom: 24px;
}

.form__group {
    width: 100%;
}

.form__input {
    width: 100%;
    padding: 16px 20px;
    background: var(--color-dark-light);
    border: 1px solid var(--color-gray-800);
    border-radius: var(--radius-md);
    color: var(--color-white);
    font-size: 16px;
    transition: var(--transition-fast);
}

.form__input::placeholder {
    color: var(--color-gray-500);
}

.form__input:focus {
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px rgba(0, 212, 170, 0.1);
}

.cta__note {
    font-size: 14px;
    color: var(--color-gray-500);
}

/* QR Code */
.cta__qrcode {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 24px;
}

.qrcode__wrapper {
    background: var(--color-dark-light);
    border: 2px solid var(--color-primary);
    border-radius: var(--radius-lg);
    padding: 16px;
    box-shadow: var(--shadow-glow);
    transition: var(--transition-normal);
}

.qrcode__wrapper:hover {
    transform: scale(1.05);
    box-shadow: 0 0 60px rgba(0, 212, 170, 0.4);
}

.qrcode__image {
    width: 200px;
    height: 200px;
    border-radius: var(--radius-sm);
}

.qrcode__text {
    font-size: 16px;
    color: var(--color-gray-400);
    text-align: center;
}

.cta__whatsapp {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    color: var(--color-primary);
    font-weight: 600;
}

.cta__whatsapp:hover {
    text-decoration: underline;
}

/* ==========================================
   Footer
   ========================================== */
.footer {
    background: var(--color-dark-light);
    padding: 80px 0 24px;
    border-top: 1px solid var(--color-gray-800);
}

.footer__content {
    display: grid;
    grid-template-columns: 1.5fr 2fr;
    gap: 60px;
    margin-bottom: 60px;
}

.footer__logo {
    height: 72px;
    margin-bottom: 16px;
}

.footer__description {
    font-size: 14px;
    color: var(--color-gray-400);
    line-height: 1.7;
    margin-bottom: 24px;
    max-width: 300px;
}

.footer__social {
    display: flex;
    gap: 12px;
}

.footer__social-link {
    width: 40px;
    height: 40px;
    background: var(--color-dark);
    border: 1px solid var(--color-gray-800);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--color-gray-400);
    transition: var(--transition-fast);
}

.footer__social-link:hover {
    background: var(--color-primary);
    border-color: var(--color-primary);
    color: var(--color-dark);
}

.footer__links {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 40px;
}

.footer__title {
    font-size: 14px;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-bottom: 20px;
}

.footer__list li {
    margin-bottom: 12px;
}

.footer__list a {
    font-size: 14px;
    color: var(--color-gray-400);
}

.footer__list a:hover {
    color: var(--color-primary);
}

.footer__bottom {
    text-align: center;
    padding-top: 24px;
    border-top: 1px solid var(--color-gray-800);
}

.footer__bottom p {
    font-size: 14px;
    color: var(--color-gray-500);
}

@media (max-width: 968px) {
    .footer__content {
        grid-template-columns: 1fr;
        gap: 40px;
    }

    .footer__links {
        grid-template-columns: repeat(3, 1fr);
    }
}

@media (max-width: 640px) {
    .footer__links {
        grid-template-columns: repeat(2, 1fr);
    }
}

/* ==========================================
   Scroll to Top Button
   ========================================== */
.scroll-top {
    position: fixed;
    bottom: 24px;
    right: 24px;
    width: 48px;
    height: 48px;
    background: var(--color-primary);
    color: var(--color-dark);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    visibility: hidden;
    transform: translateY(20px);
    transition: var(--transition-normal);
    z-index: 999;
    box-shadow: var(--shadow-glow);
}

.scroll-top.active {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.scroll-top:hover {
    transform: translateY(-4px);
}

/* ==========================================
   Animations
   ========================================== */
[data-animate] {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.6s ease, transform 0.6s ease;
}

[data-animate="fade-up"].animated {
    opacity: 1;
    transform: translateY(0);
}

[data-animate="fade-left"] {
    transform: translateX(50px);
}

[data-animate="fade-left"].animated {
    opacity: 1;
    transform: translateX(0);
}

[data-animate="fade-right"] {
    transform: translateX(-50px);
}

[data-animate="fade-right"].animated {
    opacity: 1;
    transform: translateX(0);
}

/* Delay classes */
[data-delay="100"] { transition-delay: 0.1s; }
[data-delay="200"] { transition-delay: 0.2s; }
[data-delay="300"] { transition-delay: 0.3s; }
[data-delay="400"] { transition-delay: 0.4s; }
[data-delay="500"] { transition-delay: 0.5s; }
[data-delay="600"] { transition-delay: 0.6s; }

/* ==========================================
   Mobile Overlay
   ========================================== */
.nav__overlay {
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.5);
    backdrop-filter: blur(4px);
    opacity: 0;
    visibility: hidden;
    transition: var(--transition-normal);
    z-index: 50;
}

.nav__overlay.active {
    opacity: 1;
    visibility: visible;
}