/* CSS Principal - MAXUHD Landing Page */

:root {
    --color-primary: #000000;
    --color-secondary: #d32f2f;
    --color-accent: #f5f5f5;
    --color-text: #333333;
    --color-text-light: #666666;
    --color-white: #ffffff;
    --color-gray-dark: #1a1a1a;
    --color-gray-medium: #2d2d2d;
    --color-gray-light: #e0e0e0;
    --color-success: #4caf50;
    --color-whatsapp: #25D366;
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 2rem;
    --spacing-lg: 3rem;
    --spacing-xl: 4rem;
    --spacing-xxl: 6rem;
    --font-primary: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    --font-secondary: 'Montserrat', var(--font-primary);
    --border-radius: 8px;
    --border-radius-lg: 12px;
    --border-radius-xl: 20px;
    --box-shadow: 0 4px 12px rgba(0,0,0,0.1);
    --box-shadow-lg: 0 8px 24px rgba(0,0,0,0.15);
    --box-shadow-xl: 0 12px 36px rgba(0,0,0,0.2);
    --transition-fast: 0.2s ease;
    --transition-normal: 0.3s ease;
    --z-fixed: 1030;
    --scrollbar-size: 6px;
    --scrollbar-track: #0b0b0b;
    --scrollbar-thumb: var(--color-secondary);
    --scrollbar-thumb-hover: #b71c1c;
    --scrollbar-thumb-active: #9a1212;
}

/* ===== Reset ===== */
*, *::before, *::after { margin: 0; padding: 0; box-sizing: border-box; }
html { font-size: 16px; scroll-behavior: smooth; scroll-padding-top: 80px; background: black; }
body { font-family: var(--font-primary); line-height: 1.6; color: var(--color-text); background-color: var(--color-white); overflow-x: hidden; width: 100%; -webkit-font-smoothing: antialiased; -moz-osx-font-smoothing: grayscale; }

h1, h2, h3, h4, h5, h6 { font-family: var(--font-secondary); font-weight: 700; line-height: 1.2; margin-bottom: var(--spacing-sm); }
h1 { font-size: clamp(2.2rem, 5vw, 3.5rem); }
h2 { font-size: clamp(1.8rem, 4vw, 2.8rem); }
h3 { font-size: clamp(1.3rem, 3vw, 2rem); }
p { margin-bottom: var(--spacing-sm); }
a { color: var(--color-secondary); text-decoration: none; transition: color var(--transition-fast); }
a:hover { color: var(--color-primary); }
img { max-width: 100%; height: auto; display: block; }

/* ===== Layout ===== */
.container { width: 100%; max-width: 1200px; margin: 0 auto; padding: 0 var(--spacing-sm); position: relative; }
.section { padding: var(--spacing-xl) 0; }
.section__title { text-align: center; margin-bottom: var(--spacing-lg); }
.section__title span { color: var(--color-secondary); }
.section__subtitle { text-align: center; font-size: 1.15rem; color: var(--color-text-light); max-width: 700px; margin: -1.5rem auto var(--spacing-lg); }

/* ===== Botões — identidade visual unificada ===== */
.btn {
    display: inline-flex; align-items: center; justify-content: center;
    gap: var(--spacing-xs); padding: 0.6rem 1.5rem; border-radius: var(--border-radius);
    font-weight: 600; font-size: 1rem; cursor: pointer;
    transition: all var(--transition-normal); border: 2px solid transparent;
    background-color: var(--color-secondary); color: var(--color-white);
    text-decoration: none; line-height: 1;
    -webkit-tap-highlight-color: transparent; touch-action: manipulation;
    user-select: none;
}
.btn:hover { background-color: #b71c1c; transform: translateY(-2px); box-shadow: var(--box-shadow-lg); color: var(--color-white); }
.btn:active { transform: translateY(0); }

/* Outline — só em fundos escuros (hero) */
.btn--outline { background-color: transparent; border-color: rgba(255,255,255,0.75); color: var(--color-white); }
.btn--outline:hover { background-color: rgba(255,255,255,0.12); border-color: var(--color-white); color: var(--color-white); transform: translateY(-2px); }

/* WhatsApp — verde apenas para botões literalmente do WhatsApp */
.btn--whatsapp { background-color: var(--color-whatsapp); }
.btn--whatsapp:hover { background-color: #1da851; color: var(--color-white); }

/* Plano — vermelho, alinhado à identidade do site */
.btn--plan { width: 100%; padding: 1rem; font-size: 1.05rem; background-color: var(--color-secondary); }
.btn--plan:hover { background-color: #b71c1c; transform: translateY(-2px); }
.btn--plan.btn--highlight, .btn--highlight { background-color: var(--color-secondary); }
.btn--plan.btn--highlight:hover { background-color: #9a1212; }

/* ===== Header ===== */
.header {
    background-color: var(--color-primary); padding: 0.75rem 0;
    position: fixed; width: 100%; top: 0; z-index: var(--z-fixed);
    box-shadow: 0 2px 10px rgba(0,0,0,0.3);
    transition: padding var(--transition-normal), box-shadow var(--transition-normal);
}
.header--scrolled { padding: 0.4rem 0; box-shadow: 0 5px 20px rgba(0,0,0,0.4); }
.header__container { display: flex; justify-content: space-between; align-items: center; gap: 1rem; }
.header__logo { display: inline-block; height: 40px; flex-shrink: 0; }
.header__logo img { height: 100%; width: auto; }
.header__logo:hover { opacity: 0.88; }

/* Nav desktop */
.nav__list { display: flex; gap: 30px; list-style: none; }
.nav__link { color: var(--color-white); text-decoration: none; font-weight: 500; position: relative; transition: color var(--transition-normal); padding-bottom: 2px; }
.nav__link:hover { color: var(--color-secondary); }
.nav__link::after { content: ''; position: absolute; bottom: -2px; left: 0; width: 0; height: 2px; background-color: var(--color-secondary); transition: width var(--transition-normal); }
.nav__link:hover::after { width: 100%; }
.header__cta { margin-left: var(--spacing-md); flex-shrink: 0; }

/* Hamburger */
.nav__toggle {
    display: none; background: none; border: none; cursor: pointer;
    flex-direction: column; justify-content: space-around;
    width: 26px; height: 26px; padding: 0;
    z-index: calc(var(--z-fixed) + 10);
    -webkit-tap-highlight-color: transparent; touch-action: manipulation;
}
.nav__toggle-bar { display: block; width: 100%; height: 3px; background-color: var(--color-white); border-radius: 2px; transition: transform 0.35s ease, opacity 0.25s ease; transform-origin: center; pointer-events: none; }
.nav__toggle.is-open .nav__toggle-bar:nth-child(1) { transform: translateY(9px) rotate(45deg); }
.nav__toggle.is-open .nav__toggle-bar:nth-child(2) { opacity: 0; transform: scaleX(0); }
.nav__toggle.is-open .nav__toggle-bar:nth-child(3) { transform: translateY(-9px) rotate(-45deg); }

/* ===== Hero ===== */
.hero {
    background: linear-gradient(180deg, rgba(0,0,0,0.82) 0%, rgba(0,0,0,0.55) 100%),
        url('../images/testebanner2.jpg') center/cover no-repeat;
    color: var(--color-white); padding: 10rem 0 8rem; margin-top: 58px;
}
.hero__content { display: grid; grid-template-columns: 1fr 1fr; gap: var(--spacing-xl); align-items: center; }
.hero__title { margin-bottom: var(--spacing-sm); }
.hero__title-group { display: inline-block; white-space: nowrap; }
.hero__brand { color: var(--color-secondary); margin-left: 6px; }
.hero__subtitle { font-size: 1.2rem; margin-bottom: var(--spacing-lg); opacity: 0.92; }
.hero__subtitle .highlight { color: var(--color-secondary); font-weight: 600; text-decoration: none; }
.hero__cta-group { display: flex; gap: var(--spacing-sm); margin-bottom: var(--spacing-xl); flex-wrap: wrap; align-items: stretch; }
.hero__image img { width: 100%; height: auto; border-radius: var(--border-radius-lg); }
.hero__features { display: flex; justify-content: center; align-items: center; gap: var(--spacing-xl); flex-wrap: wrap; margin-top: var(--spacing-md); }
.feature { display: flex; align-items: center; gap: var(--spacing-xs); }
.feature__icon { width: 24px; height: 24px; color: var(--color-secondary); }
.feature__text { font-weight: 500; font-size: 0.95rem; opacity: 0.9; }

/* ===== Sobre ===== */
.about__content { display: grid; grid-template-columns: 1fr 1fr; gap: var(--spacing-xl); align-items: center; }
.about__paragraph { margin-bottom: var(--spacing-md); font-size: 1.1rem; line-height: 1.7; }
.about__stats { display: grid; grid-template-columns: repeat(2, 1fr); gap: var(--spacing-md); }
.stat { background-color: var(--color-accent); padding: var(--spacing-md); border-radius: var(--border-radius); text-align: center; transition: transform var(--transition-normal), box-shadow var(--transition-normal); }
.stat:hover { transform: translateY(-5px); box-shadow: var(--box-shadow-lg); }
.stat__number { display: block; font-size: 2.5rem; font-weight: 800; color: var(--color-secondary); line-height: 1; margin-bottom: var(--spacing-xs); }
.stat__label { font-weight: 500; color: var(--color-text-light); }

/* ===== Planos ===== */
.plans__container { display: grid; grid-template-columns: repeat(4, 1fr); gap: var(--spacing-md); }
.plan { background-color: var(--color-white); border-radius: var(--border-radius-lg); overflow: hidden; box-shadow: var(--box-shadow); transition: all var(--transition-normal); position: relative; border: 1px solid var(--color-gray-light); display: flex; flex-direction: column; height: 100%; }
.plan:hover { transform: translateY(-10px); box-shadow: var(--box-shadow-xl); }
.plan--highlight { border-color: var(--color-secondary); transform: scale(1.02); }
.plan--highlight:hover { transform: scale(1.02) translateY(-10px); }
.plan__badge { position: absolute; top: 0; right: 0; background-color: var(--color-secondary); color: var(--color-white); padding: var(--spacing-xs) var(--spacing-sm); font-size: 0.8rem; font-weight: 600; border-bottom-left-radius: var(--border-radius); z-index: 1; }
.plan__badge__bonus { position: absolute; top: 0; left: 0; background-color: var(--color-success); color: var(--color-white); padding: var(--spacing-xs) var(--spacing-sm); font-size: 0.75rem; font-weight: 600; border-bottom-right-radius: var(--border-radius); z-index: 1; }
.plan__header { padding: 2.5rem 1.5rem; background: linear-gradient(180deg, rgba(0,0,0,0.75) 0%, rgba(0,0,0,0.55) 100%), url('../images/testebanner5.jpg') center/cover no-repeat; color: var(--color-white); text-align: center; flex-shrink: 0; }
.plan__title { font-size: 1.5rem; margin-bottom: var(--spacing-sm); }
.plan__price { display: flex; flex-direction: column; align-items: center; margin-bottom: var(--spacing-xs); }
.plan__amount { font-size: 2.3rem; font-weight: 800; }
.plan__period { font-size: 1rem; opacity: 0.8; }
.plan__features { padding: 2rem 1.8rem; flex-grow: 1; }
.plan__list { list-style: none; }
.plan__feature { padding: var(--spacing-xs) 0; border-bottom: 1px solid var(--color-gray-light); display: flex; align-items: center; gap: var(--spacing-xs); }
.plan__feature:last-child { border-bottom: none; }
.plan__feature-icon { width: 18px; height: 18px; color: var(--color-secondary); flex-shrink: 0; }
.plan__footer { padding: 0 var(--spacing-md) var(--spacing-md); flex-shrink: 0; }

/* ===== Como Funciona ===== */
.steps { display: grid; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); gap: var(--spacing-lg); margin-bottom: var(--spacing-xl); }
.step { text-align: center; padding: var(--spacing-lg); position: relative; background-color: var(--color-white); border-radius: var(--border-radius); box-shadow: var(--box-shadow); transition: transform var(--transition-normal), box-shadow var(--transition-normal); }
.step:hover { transform: translateY(-5px); box-shadow: var(--box-shadow-lg); }
.step__number { position: absolute; top: -15px; left: -15px; background-color: var(--color-secondary); color: var(--color-white); width: 40px; height: 40px; border-radius: 50%; display: flex; align-items: center; justify-content: center; font-weight: 800; font-size: 1.2rem; }
.step__icon { font-size: 3rem; margin-bottom: var(--spacing-md); color: var(--color-secondary); }
.step__icon svg { width: 48px; height: 48px; }
.step__title { font-size: 1.4rem; margin-bottom: var(--spacing-sm); }
.step__description { color: var(--color-text-light); }
.how__info { background-color: var(--color-accent); padding: var(--spacing-md); border-radius: var(--border-radius); margin-bottom: var(--spacing-xl); border-left: 4px solid var(--color-secondary); }
.how__info p { margin-bottom: 0; }
.how__cta { text-align: center; padding: var(--spacing-xl); background: linear-gradient(135deg, #2d2d2d, #1f1f1f); color: var(--color-white); border-radius: var(--border-radius-lg); }
.how__cta-text { font-size: 1.4rem; margin-bottom: var(--spacing-md); opacity: 0.95; }

/* ===== Conteúdos ===== */
.categories { display: grid; grid-template-columns: repeat(auto-fill, minmax(180px, 1fr)); gap: var(--spacing-lg); }
.category { text-align: center; padding: var(--spacing-lg) var(--spacing-md); background-color: var(--color-accent); border-radius: var(--border-radius); transition: all var(--transition-normal); }
.category:hover { background-color: var(--color-gray-light); transform: translateY(-5px); }
.category__icon { font-size: 2.5rem; margin-bottom: var(--spacing-sm); color: var(--color-secondary); }
.category__icon svg { width: 48px; height: 48px; }
.category__title { font-size: 1.2rem; margin-bottom: var(--spacing-xs); }
.category__description { font-size: 0.9rem; color: var(--color-text-light); }

/* ===== Dispositivos ===== */
.devices { display: grid; grid-template-columns: repeat(auto-fill, minmax(150px, 1fr)); gap: 1.5rem; margin-bottom: var(--spacing-xl); }
.device { text-align: center; padding: var(--spacing-md); transition: all var(--transition-normal); background-color: var(--color-white); border-radius: var(--border-radius); box-shadow: var(--box-shadow); display: flex; flex-direction: column; align-items: center; gap: var(--spacing-sm); }
.device:hover { transform: translateY(-5px); box-shadow: var(--box-shadow-lg); }
.device__icon { font-size: 2.5rem; color: var(--color-secondary); }
.device__icon svg { width: 48px; height: 48px; }
.device__name { font-size: 1.05rem; font-weight: 600; margin-bottom: var(--spacing-xs); }
.device__description { font-size: 0.88rem; color: var(--color-text-light); line-height: 1.4; }
.devices__instructions { display: flex; align-items: center; gap: var(--spacing-lg); background: linear-gradient(135deg, #2d2d2d, #1f1f1f); color: var(--color-white); padding: var(--spacing-xl); border-radius: var(--border-radius-lg); margin-top: var(--spacing-xl); }
.devices__instructions-icon { flex-shrink: 0; }
.devices__instructions-icon svg { width: 64px; height: 64px; }
.devices__instructions-content h3 { font-size: 1.5rem; margin-bottom: var(--spacing-sm); color: var(--color-white); }
.devices__instructions-content p { margin-bottom: 0; font-size: 1.1rem; opacity: 0.9; }

/* ===== Benefícios ===== */
.benefits { display: grid; grid-template-columns: repeat(auto-fit, minmax(290px, 1fr)); gap: var(--spacing-lg); }
.benefit { padding: var(--spacing-lg); background-color: var(--color-white); border-radius: var(--border-radius); box-shadow: var(--box-shadow); transition: all var(--transition-normal); text-align: center; }
.benefit:hover { transform: translateY(-5px); box-shadow: var(--box-shadow-lg); }
.benefit__icon { font-size: 2.5rem; margin-bottom: var(--spacing-md); color: var(--color-secondary); }
.benefit__icon svg { width: 48px; height: 48px; }
.benefit__title { font-size: 1.3rem; margin-bottom: var(--spacing-sm); }
.benefit__description { color: var(--color-text-light); line-height: 1.6; }

/* ===== Depoimentos ===== */
.testimonials { display: grid; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); gap: var(--spacing-lg); }
.testimonial { background-color: var(--color-white); border-radius: var(--border-radius); padding: var(--spacing-lg); box-shadow: var(--box-shadow); display: flex; flex-direction: column; height: 100%; transition: box-shadow var(--transition-normal), transform var(--transition-normal); }
.testimonial:hover { transform: translateY(-4px); box-shadow: var(--box-shadow-lg); }
.testimonial__content { margin-bottom: var(--spacing-md); flex-grow: 1; }
.testimonial__rating { display: flex; gap: 4px; margin-bottom: var(--spacing-sm); }
.testimonial__rating .star { width: 20px; height: 20px; color: #FFD700; fill: #FFD700; }
.testimonial__text { font-style: italic; line-height: 1.7; margin-bottom: 0; }
.testimonial__author { display: flex; align-items: center; gap: var(--spacing-sm); margin-top: auto; padding-top: var(--spacing-md); border-top: 1px solid var(--color-gray-light); }
.testimonial__avatar { width: 48px; height: 48px; background-color: var(--color-secondary); color: var(--color-white); border-radius: 50%; display: flex; align-items: center; justify-content: center; font-weight: 700; font-size: 1.1rem; flex-shrink: 0; }
.testimonial__name { font-weight: 700; margin-bottom: 2px; font-size: 1rem; }
.testimonial__location { font-size: 0.88rem; color: var(--color-text-light); }

/* ===== FAQ ===== */
.faq { max-width: 800px; margin: 0 auto var(--spacing-xl); }
.faq__item { margin-bottom: var(--spacing-sm); border: 1px solid var(--color-gray-light); border-radius: var(--border-radius); overflow: hidden; background-color: var(--color-white); transition: box-shadow var(--transition-fast); }
.faq__item:hover { box-shadow: var(--box-shadow); }
.faq__question { width: 100%; padding: var(--spacing-md); background-color: var(--color-white); border: none; text-align: left; font-size: 1.05rem; font-weight: 600; cursor: pointer; display: flex; justify-content: space-between; align-items: center; transition: background-color var(--transition-fast); color: var(--color-primary); -webkit-tap-highlight-color: transparent; }
.faq__question:hover, .faq__question[aria-expanded="true"] { background-color: var(--color-accent); }
.faq__question[aria-expanded="true"] .faq__icon svg { transform: rotate(180deg); }
.faq__icon { flex-shrink: 0; margin-left: var(--spacing-sm); }
.faq__icon svg { width: 24px; height: 24px; transition: transform var(--transition-normal); }
.faq__answer { max-height: 0; overflow: hidden; transition: max-height 0.4s cubic-bezier(0.4,0,0.2,1); }
.faq__answer[aria-hidden="false"] { max-height: 500px; }
.faq__answer-content { padding: var(--spacing-md); border-top: 1px solid var(--color-gray-light); }
.faq__answer p { margin-bottom: 0; line-height: 1.6; }
.faq__cta { text-align: center; padding: var(--spacing-xl); background: #1e1e1e; border-radius: var(--border-radius-lg); color: #fff; }
.faq__cta p { margin-bottom: var(--spacing-md); font-size: 1.15rem; }

/* ===== CTA Final ===== */
.section--cta { padding-bottom: 0; background: linear-gradient(180deg, rgba(0,0,0,0.87) 0%, rgba(0,0,0,0.7) 100%), url('../images/testebanner4.jpg') center/cover no-repeat; }
.cta__card { text-align: center; padding: var(--spacing-xxl) var(--spacing-xl); color: var(--color-white); position: relative; overflow: hidden; margin-bottom: -1px; }
.cta__title { font-size: clamp(1.7rem, 4vw, 2.5rem); margin-bottom: var(--spacing-md); }
.cta__subtitle { font-size: 1.2rem; margin-bottom: var(--spacing-lg); max-width: 700px; margin-left: auto; margin-right: auto; opacity: 0.9; }
.cta__features { display: flex; justify-content: center; gap: var(--spacing-lg); flex-wrap: wrap; margin-bottom: var(--spacing-xl); }
.cta__feature { background-color: rgba(255,255,255,0.1); padding: var(--spacing-sm) var(--spacing-md); border-radius: 50px; font-weight: 500; display: flex; align-items: center; gap: var(--spacing-xs); }
.cta__feature-icon { width: 20px; height: 20px; }
.cta__button { font-size: 1.2rem; padding: 0.8rem 1.5rem; }
.cta__notice { margin-top: var(--spacing-md); font-size: 0.9rem; opacity: 0.75; }

/* ===== Footer ===== */
.footer { background: linear-gradient(0deg, var(--color-primary), var(--color-gray-dark)); color: var(--color-white); padding: var(--spacing-xl) 0 0; border-top: 1px solid #2d2d2d; }
.footer__content { display: grid; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); gap: var(--spacing-xl); margin-bottom: var(--spacing-xl); }
.footer__logo { display: inline-block; margin-bottom: var(--spacing-sm); }
.footer__logo img { height: 40px; width: auto; }
.footer__description { margin-bottom: var(--spacing-md); opacity: 0.8; line-height: 1.6; font-size: 0.95rem; }
.footer__title { font-size: 1.2rem; margin-bottom: var(--spacing-md); color: var(--color-white); }
.footer__links { list-style: none; }
.footer__links li { margin-bottom: var(--spacing-xs); }
.footer__links a { color: rgba(255,255,255,0.8); text-decoration: none; transition: all var(--transition-fast); font-size: 0.95rem; }
.footer__links a:hover { color: var(--color-white); padding-left: 5px; }
.footer__contact { list-style: none; }
.footer__contact li { margin-bottom: var(--spacing-sm); display: flex; align-items: center; gap: var(--spacing-xs); font-size: 0.95rem; color: rgba(255,255,255,0.8); }
.footer__contact svg { width: 18px; height: 18px; flex-shrink: 0; }
.footer__bottom { padding: var(--spacing-lg) 0; display: flex; justify-content: space-between; align-items: center; gap: 1rem; flex-wrap: wrap; }
.footer__copyright, .footer__dev { margin: 0; }
.footer__copyright p, .footer__dev p { margin: 0; line-height: 1.4; }
.footer__dev a { color: var(--color-secondary); text-decoration: none; font-weight: 500; transition: color var(--transition-fast); }
.footer__dev a:hover { color: #b71c1c; text-decoration: underline; }

/* ===== WhatsApp Flutuante ===== */
.floating-whatsapp { position: fixed; bottom: var(--spacing-md); right: var(--spacing-md); z-index: var(--z-fixed); background-color: var(--color-whatsapp); width: 60px; height: 60px; border-radius: 50%; display: flex; align-items: center; justify-content: center; text-decoration: none; box-shadow: var(--box-shadow-lg); transition: all var(--transition-normal); animation: pulseWA 2.5s infinite; overflow: hidden; }
.floating-whatsapp img { width: 32px; height: 32px; object-fit: contain; }
.floating-whatsapp:hover { transform: scale(1.12); background-color: #1da851; animation: none; }

/* ===== Animações scroll-reveal ===== */
[data-animate] { opacity: 0; transition: opacity 0.65s ease, transform 0.65s ease; }
[data-animate="fadeInUp"] { transform: translateY(32px); }
[data-animate="fadeInLeft"] { transform: translateX(-40px); }
[data-animate="fadeInRight"] { transform: translateX(40px); }
[data-animate="scaleIn"] { transform: scale(0.88); }
[data-animate].is-visible { opacity: 1 !important; transform: none !important; }

/* ===== Touch highlight ===== */
a, button, [role="button"], .btn, .nav__link, .faq__question, .floating-whatsapp, .footer__developer-email, .mobile-menu-link {
    -webkit-tap-highlight-color: rgba(0,0,0,0);
    tap-highlight-color: rgba(0,0,0,0);
    -webkit-touch-callout: none;
    touch-action: manipulation;
}
input, textarea, select { -webkit-user-select: text; user-select: text; }
:focus { outline: none; }
:focus-visible { outline: 3px solid var(--color-secondary); outline-offset: 3px; }

/* ===== Scrollbar personalizada MAXUHD ===== */
/* Mantém o layout estável quando a barra aparece/desaparece */
html {
    scrollbar-gutter: stable;
    scrollbar-width: thin;
    scrollbar-color: var(--scrollbar-thumb) var(--scrollbar-track);
}

/* Aplica a todos os elementos que possam rolar */
html,
body,
* {
    scrollbar-width: thin;
    scrollbar-color: var(--scrollbar-thumb) var(--scrollbar-track);
}

/* Chromium, Edge, Safari e demais WebKit/Blink */
html::-webkit-scrollbar,
body::-webkit-scrollbar,
*::-webkit-scrollbar {
    width: var(--scrollbar-size);
    height: var(--scrollbar-size);
}

/* Trilho */
html::-webkit-scrollbar-track,
body::-webkit-scrollbar-track,
*::-webkit-scrollbar-track {
    background: var(--scrollbar-track);
}

/* Fundo do trilho/cantos */
html::-webkit-scrollbar-corner,
body::-webkit-scrollbar-corner,
*::-webkit-scrollbar-corner {
    background: var(--scrollbar-track);
}

/* Polegar */
html::-webkit-scrollbar-thumb,
body::-webkit-scrollbar-thumb,
*::-webkit-scrollbar-thumb {
    background-color: var(--scrollbar-thumb);
    border-radius: 999px;
    border: 1px solid var(--scrollbar-track);
    min-height: 40px;
    background-clip: padding-box;
}

/* Hover */
html::-webkit-scrollbar-thumb:hover,
body::-webkit-scrollbar-thumb:hover,
*::-webkit-scrollbar-thumb:hover {
    background-color: var(--scrollbar-thumb-hover);
}

/* Active */
html::-webkit-scrollbar-thumb:active,
body::-webkit-scrollbar-thumb:active,
*::-webkit-scrollbar-thumb:active {
    background-color: var(--scrollbar-thumb-active);
}

/* Evita aparência nativa em alguns componentes */
textarea,
pre,
code,
select,
dialog,
.mobile-menu-nav {
    scrollbar-width: thin;
    scrollbar-color: var(--scrollbar-thumb) var(--scrollbar-track);
}

textarea::-webkit-scrollbar,
pre::-webkit-scrollbar,
code::-webkit-scrollbar,
select::-webkit-scrollbar,
dialog::-webkit-scrollbar,
.mobile-menu-nav::-webkit-scrollbar {
    width: var(--scrollbar-size);
    height: var(--scrollbar-size);
}

textarea::-webkit-scrollbar-track,
pre::-webkit-scrollbar-track,
code::-webkit-scrollbar-track,
select::-webkit-scrollbar-track,
dialog::-webkit-scrollbar-track,
.mobile-menu-nav::-webkit-scrollbar-track {
    background: var(--scrollbar-track);
}

textarea::-webkit-scrollbar-thumb,
pre::-webkit-scrollbar-thumb,
code::-webkit-scrollbar-thumb,
select::-webkit-scrollbar-thumb,
dialog::-webkit-scrollbar-thumb,
.mobile-menu-nav::-webkit-scrollbar-thumb {
    background-color: var(--scrollbar-thumb);
    border-radius: 999px;
    border: 1px solid var(--scrollbar-track);
    background-clip: padding-box;
}

textarea::-webkit-scrollbar-thumb:hover,
pre::-webkit-scrollbar-thumb:hover,
code::-webkit-scrollbar-thumb:hover,
select::-webkit-scrollbar-thumb:hover,
dialog::-webkit-scrollbar-thumb:hover,
.mobile-menu-nav::-webkit-scrollbar-thumb:hover {
    background-color: var(--scrollbar-thumb-hover);
}

/* ===== Keyframes ===== */
@keyframes fadeInUp { from { opacity: 0; transform: translateY(30px); } to { opacity: 1; transform: translateY(0); } }
@keyframes pulseWA {
    0%   { box-shadow: 0 0 0 0 rgba(37,211,102,0.65); }
    70%  { box-shadow: 0 0 0 16px rgba(37,211,102,0); }
    100% { box-shadow: 0 0 0 0 rgba(37,211,102,0); }
}

/* ===== Responsividade: 1200px ===== */
@media (max-width: 1200px) {
    .plans__container { grid-template-columns: repeat(2, 1fr); gap: var(--spacing-lg); }
}

/* ===== Responsividade: 992px ===== */
@media (max-width: 992px) {
    .hero__content { grid-template-columns: 1fr; gap: var(--spacing-lg); text-align: center; }
    .hero__image { order: -1; max-width: 480px; margin: 0 auto; }
    .hero__cta-group { justify-content: center; }
    .hero__features { justify-content: center; }
    .about__content { grid-template-columns: 1fr; gap: var(--spacing-lg); }
    .about__paragraph { font-size: 1rem; text-align: center; }
    .devices__instructions { flex-direction: column; text-align: center; gap: var(--spacing-md); }
    .nav__toggle { display: flex; }
    .nav__list { display: none; }
    .header__cta { display: none; }
}

/* ===== Responsividade: 768px ===== */
@media (max-width: 768px) {
    .section { padding: var(--spacing-lg) 0; }
    .container { padding: 0 1.1rem; }
    .header { height: 58px; }
    .header__container { height: 100%; padding: 0 1rem; }
    .header__logo { height: 34px; }
    .hero { padding: 7.5rem 0 3.5rem; margin-top: 58px; }
    .hero__title { font-size: clamp(1.9rem, 6vw, 2.5rem); }
    .hero__subtitle { font-size: 1.05rem; }
    .hero__cta-group { gap: 0.7rem; }
    .plans__container { grid-template-columns: 1fr; max-width: 420px; margin-left: auto; margin-right: auto; }
    .plan--highlight { transform: none; }
    .plan--highlight:hover { transform: translateY(-10px); }
    .steps { grid-template-columns: 1fr; max-width: 420px; margin-left: auto; margin-right: auto; }
    .categories { grid-template-columns: repeat(2, 1fr); gap: 1.2rem; }
    .devices { grid-template-columns: repeat(2, 1fr); gap: 0.9rem; }
    .device { padding: 0.9rem; }
    .benefits { grid-template-columns: 1fr; }
    .testimonials { grid-template-columns: 1fr; }
    .footer__content { grid-template-columns: 1fr; text-align: center; gap: 2rem; }
    .footer__links, .footer__contact { margin-top: -1rem; }
    .footer__social { justify-content: center; }
    .footer__contact li { justify-content: center; }
    .footer__developer { flex-direction: column; align-items: flex-start; gap: 1rem; }
    .footer__developer-right { text-align: left; align-items: flex-start; margin-left: 74px; }
    .footer__logo img { height: 48px; }
    .cta__card { padding: var(--spacing-xl) var(--spacing-sm); }
    .cta__features { gap: 0.8rem; }
    .cta__feature { font-size: 0.9rem; padding: 0.5rem 1rem; }
    .faq__cta, .how__cta, .devices__instructions { padding: 1.8rem 1.2rem; }
    .faq__cta p { font-size: 1rem; }
    .floating-whatsapp { width: 52px; height: 52px; bottom: 1.2rem; right: 1.2rem; }
    .floating-whatsapp img { width: 28px; height: 28px; }
    .about__stats { grid-template-columns: repeat(2, 1fr); gap: var(--spacing-sm); max-width: 320px; margin: 0 auto; }
    .stat { padding: var(--spacing-sm); }
    .stat__number { font-size: 2rem; }
    .section__subtitle { font-size: 1rem; }
    .how__cta-text { font-size: 1.2rem; }
    .footer__bottom { flex-direction: column; align-items: center; text-align: center; gap: 0.5rem; padding: var(--spacing-md) 0; }
    .footer__copyright, .footer__dev { width: 100%; }
    .cta__button { font-size: 1rem; }
}

/* ===== Responsividade: 480px ===== */
@media (max-width: 480px) {
    .container { padding: 0 0.9rem; }
    .hero { padding: 7rem 0 3rem; }
    .hero__title { font-size: clamp(1.6rem, 7vw, 2.1rem); }
    .hero__cta-group { flex-direction: column; align-items: center; }
    .hero__cta-group .btn { width: 100%; max-width: 320px; justify-content: center; }
    .hero__features { gap: var(--spacing-sm); flex-direction: column; align-items: flex-start; }
    .categories { grid-template-columns: 1fr; max-width: 340px; margin: 0 auto; }
    .devices { grid-template-columns: repeat(2, 1fr); gap: 0.7rem; }
    .about__stats { max-width: 100%; }
    .stat__number { font-size: 1.8rem; }
    .stat__label { font-size: 0.82rem; }
    .cta__features { flex-direction: column; align-items: center; }
    .plans__container { max-width: 100%; }
    .plan__features { padding: 1.5rem 1.2rem; }
    .plan__footer { padding: 0 1rem 1.2rem; }
    .section__title { font-size: clamp(1.5rem, 6vw, 2rem); }
    .section__subtitle { font-size: 0.95rem; }
    .floating-whatsapp { width: 48px; height: 48px; bottom: 0.9rem; right: 0.9rem; }
    .floating-whatsapp img { width: 24px; height: 24px; }
    .footer__developer-right { margin-left: 0; }
    .hero__features { align-items: flex-start; }
    .footer__bottom { padding: var(--spacing-sm) 0; }
    .footer__copyright p, .footer__dev p { font-size: 0.85rem; }
    .cta__button { font-size: 1rem; }
}

/* ===== Prefers reduced motion ===== */
@media (prefers-reduced-motion: reduce) {
    *, *::before, *::after { animation-duration: 0.01ms !important; animation-iteration-count: 1 !important; transition-duration: 0.01ms !important; scroll-behavior: auto !important; }
    [data-animate] { opacity: 1 !important; transform: none !important; }
    .floating-whatsapp { animation: none; }
}

/* ===== Suporte sem grid ===== */
@supports not (display: grid) {
    .plans__container, .steps, .categories, .devices, .benefits, .testimonials, .footer__content { display: flex; flex-wrap: wrap; justify-content: center; }
    .plan, .step, .category, .device, .benefit, .testimonial, .footer__section { flex: 1 1 300px; margin: 15px; max-width: 300px; }
}

/* ===== Print ===== */
@media print {
    .header, .floating-whatsapp, .hero__cta-group, .plan__footer, .how__cta, .faq__cta, .cta__card, .footer, .mobile-menu-drawer, .mobile-menu-overlay { display: none !important; }
    body { color: #000; background: #fff; }
    .container { max-width: 100%; }
    a { color: #000; text-decoration: underline; }
    .hero { background: none !important; color: #000; padding: 2rem 0; margin-top: 0; }
    .section { padding: 1rem 0; page-break-inside: avoid; }
    .btn { display: none; }
}