/* ==========================================================================
   CursosTTI Online — Design System
   Paleta extraída do logotipo (preto profundo + dourado/bronze em gradiente)
   Tipografia: Playfair Display (títulos) + Open Sans (texto) — clássicas e legíveis
   ========================================================================== */

:root {
    /* Cores — extraídas do logotipo */
    --black:        #0b0a08;
    --black-soft:   #141109;
    --charcoal:     #1c1710;
    --charcoal-2:   #241d13;
    --hairline:     #35291a;

    --gold-100:     #f7dfa1;
    --gold-300:     #f3c565;
    --gold-500:     #d9a441;
    --gold-600:     #c68f34;
    --gold-700:     #a9762b;

    --cream:        #f7f2e6;
    --cream-dim:    #cdc3ac;
    --white:        #ffffff;

    --success:      #25d366;

    /* Gradientes */
    --gradient-gold: linear-gradient(135deg, var(--gold-100) 0%, var(--gold-300) 32%, var(--gold-500) 62%, var(--gold-700) 100%);
    --gradient-gold-soft: linear-gradient(135deg, var(--gold-300), var(--gold-700));
    --gradient-dark: linear-gradient(180deg, var(--black) 0%, var(--black-soft) 100%);

    /* Tipografia */
    --font-display: 'Playfair Display', Georgia, 'Times New Roman', serif;
    --font-body: 'Open Sans', Arial, Helvetica, sans-serif;

    /* Espaçamento & layout */
    --container-w: 1180px;
    --radius-sm: 8px;
    --radius-md: 14px;
    --radius-lg: 24px;
    --shadow-gold: 0 8px 30px -8px rgba(217, 164, 65, 0.45);
    --shadow-soft: 0 20px 60px -20px rgba(0, 0, 0, 0.6);

    --transition: 300ms cubic-bezier(.4,0,.2,1);
}

/* ---- Reset básico ---- */
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
    margin: 0;
    background: var(--black);
    color: var(--cream);
    font-family: var(--font-body);
    font-size: 16px;
    line-height: 1.65;
    -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
ul { margin: 0; padding: 0; list-style: none; }
h1, h2, h3, h4 { font-family: var(--font-display); font-weight: 700; line-height: 1.15; margin: 0 0 .5em; color: var(--white); }
p { margin: 0 0 1em; }
button { font-family: inherit; }

@media (prefers-reduced-motion: reduce) {
    *, *::before, *::after {
        animation-duration: 0.001ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.001ms !important;
        scroll-behavior: auto !important;
    }
}

.container {
    width: 100%;
    max-width: var(--container-w);
    margin: 0 auto;
    padding: 0 24px;
}

.skip-link {
    position: absolute; left: -999px; top: 0; background: var(--gold-500); color: var(--black);
    padding: 10px 16px; z-index: 999; font-weight: 700;
}
.skip-link:focus { left: 12px; top: 12px; }

:focus-visible {
    outline: 2px solid var(--gold-300);
    outline-offset: 3px;
}

.eyebrow {
    font-family: var(--font-body);
    text-transform: uppercase;
    letter-spacing: .14em;
    font-size: .78rem;
    font-weight: 700;
    color: var(--gold-300);
    margin: 0 0 .6em;
}

.lede { font-size: 1.15rem; color: var(--cream-dim); max-width: 640px; }

/* ==========================================================================
   Botões
   ========================================================================== */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    padding: 13px 26px;
    border-radius: 999px;
    font-weight: 700;
    font-size: .98rem;
    border: 1px solid transparent;
    cursor: pointer;
    transition: transform var(--transition), box-shadow var(--transition), background var(--transition), border-color var(--transition);
    white-space: nowrap;
}
.btn:hover { transform: translateY(-2px); }
.btn:active { transform: translateY(0); }

.btn-gold {
    background: var(--gradient-gold);
    color: var(--black);
    box-shadow: var(--shadow-gold);
}
.btn-gold:hover { box-shadow: 0 12px 34px -6px rgba(243, 197, 101, .55); }

.btn-outline {
    background: transparent;
    border-color: var(--gold-500);
    color: var(--gold-300);
}
.btn-outline:hover { background: rgba(217,164,65,.1); }

.btn-whatsapp {
    background: var(--success);
    color: var(--black);
}
.btn-whatsapp:hover { box-shadow: 0 10px 26px -8px rgba(37, 211, 102, .55); }
.icon-whatsapp { width: 19px; height: 19px; fill: var(--black); flex-shrink: 0; }

.btn-lg { padding: 16px 34px; font-size: 1.05rem; }
.btn-block { width: 100%; }

/* ==========================================================================
   Cabeçalho
   ========================================================================== */
.site-header {
    position: sticky;
    top: 0;
    z-index: 100;
    background: rgba(11, 10, 8, .78);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border-bottom: 1px solid transparent;
    transition: border-color var(--transition), background var(--transition), padding var(--transition);
    padding: 14px 0;
}
.site-header.scrolled {
    border-bottom-color: var(--hairline);
    background: rgba(11, 10, 8, .95);
    padding: 8px 0;
}
.header-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 20px;
}
.brand { display: flex; align-items: center; flex-shrink: 0; }
.brand-logo { height: 56px; width: auto; transition: height var(--transition); }
.site-header.scrolled .brand-logo { height: 44px; }

.main-nav ul { display: flex; align-items: center; gap: 34px; }
.main-nav a {
    font-weight: 600;
    font-size: .96rem;
    color: var(--cream-dim);
    position: relative;
    padding: 6px 0;
    transition: color var(--transition);
}
.main-nav a::after {
    content: "";
    position: absolute;
    left: 0; right: 100%; bottom: -2px;
    height: 2px;
    background: var(--gradient-gold-soft);
    transition: right var(--transition);
}
.main-nav a:hover, .main-nav a.active { color: var(--white); }
.main-nav a:hover::after, .main-nav a.active::after { right: 0; }
.nav-cta-mobile { display: none; }

.header-cta { flex-shrink: 0; }

.nav-toggle {
    display: none;
    flex-direction: column;
    justify-content: center;
    gap: 5px;
    width: 42px; height: 42px;
    background: transparent;
    border: 1px solid var(--hairline);
    border-radius: 8px;
    padding: 0;
}
.nav-toggle span {
    display: block;
    width: 20px; height: 2px;
    margin: 0 auto;
    background: var(--gold-300);
    transition: transform var(--transition), opacity var(--transition);
}
.nav-toggle[aria-expanded="true"] span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav-toggle[aria-expanded="true"] span:nth-child(2) { opacity: 0; }
.nav-toggle[aria-expanded="true"] span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

.nav-backdrop {
    position: fixed; inset: 0; background: rgba(0,0,0,.6);
    opacity: 0; pointer-events: none; transition: opacity var(--transition);
    z-index: 90;
}
.nav-backdrop.show { opacity: 1; pointer-events: auto; }

@media (max-width: 900px) {
    .main-nav {
        position: fixed;
        top: 0; right: -320px;
        width: 300px; height: 100vh;
        background: var(--black-soft);
        border-left: 1px solid var(--hairline);
        padding: 90px 28px 28px;
        transition: right var(--transition);
        z-index: 95;
    }
    .main-nav.open { right: 0; }
    .main-nav ul { flex-direction: column; align-items: flex-start; gap: 22px; }
    .nav-cta-mobile { display: block; margin-top: 12px; width: 100%; }
    .nav-cta-mobile .btn { width: 100%; }
    .header-cta { display: none; }
    .nav-toggle { display: flex; }
}

/* ==========================================================================
   Hero + Skyline animado (elemento assinatura)
   ========================================================================== */
.hero {
    position: relative;
    overflow: hidden;
    padding: 96px 0 0;
    background: var(--gradient-dark);
}
.hero-inner {
    display: grid;
    grid-template-columns: 1.05fr .95fr;
    gap: 40px;
    align-items: center;
    position: relative;
    z-index: 2;
}
.hero h1 {
    font-size: clamp(2.3rem, 4.4vw, 3.6rem);
    margin-bottom: .4em;
}
.hero h1 .gold-text { background: var(--gradient-gold); -webkit-background-clip: text; background-clip: text; color: transparent; }
.hero .tagline {
    font-family: var(--font-display);
    font-style: italic;
    font-weight: 600;
    color: var(--gold-300);
    font-size: 1.3rem;
    margin-bottom: .6em;
}
.hero-ctas { display: flex; flex-wrap: wrap; gap: 16px; margin-top: 30px; }

.hero-badges {
    display: flex; flex-wrap: wrap; gap: 12px 26px; margin-top: 40px;
    padding-top: 26px; border-top: 1px solid var(--hairline);
}
.hero-badge { display: flex; align-items: center; gap: 10px; font-size: .88rem; color: var(--cream-dim); }
.hero-badge svg { width: 20px; height: 20px; fill: var(--gold-300); flex-shrink: 0; }

/* Cena da skyline */
.skyline-scene {
    position: relative;
    height: 420px;
    display: flex;
    align-items: flex-end;
    justify-content: center;
}
.skyline-scene svg { width: 100%; height: auto; max-width: 480px; }
.sky-glow {
    position: absolute;
    bottom: -10%;
    left: 50%;
    transform: translateX(-50%);
    width: 480px; height: 480px;
    background: radial-gradient(circle, rgba(217,164,65,.28) 0%, rgba(217,164,65,0) 68%);
    z-index: 0;
    pointer-events: none;
}
.window-lit {
    animation: flicker 5.5s ease-in-out infinite;
    fill: var(--gold-300);
}
@keyframes flicker {
    0%, 40% { opacity: .18; }
    50%, 85% { opacity: 1; }
    95%, 100% { opacity: .18; }
}

.hero-strip {
    position: relative;
    z-index: 2;
    background: linear-gradient(90deg, rgba(28,23,16,0) 0%, var(--charcoal) 15%, var(--charcoal) 85%, rgba(28,23,16,0) 100%);
    border-top: 1px solid var(--hairline);
    margin-top: 70px;
}

@media (max-width: 900px) {
    .hero-inner { grid-template-columns: 1fr; text-align: center; }
    .hero-ctas, .hero-badges { justify-content: center; }
    .skyline-scene { height: 300px; margin-top: 30px; }
}

/* ==========================================================================
   Faixa de confiança (stats)
   ========================================================================== */
.trust-strip {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 0;
    padding: 34px 0;
}
.trust-item { text-align: center; padding: 0 12px; border-right: 1px solid var(--hairline); }
.trust-item:last-child { border-right: none; }
.trust-item .num {
    font-family: var(--font-display);
    font-size: 2.1rem;
    font-weight: 800;
    background: var(--gradient-gold);
    -webkit-background-clip: text; background-clip: text; color: transparent;
    display: block;
}
.trust-item .label { color: var(--cream-dim); font-size: .88rem; }

@media (max-width: 760px) {
    .trust-strip { grid-template-columns: repeat(2, 1fr); row-gap: 26px; }
    .trust-item:nth-child(2) { border-right: none; }
}

/* ==========================================================================
   Seções gerais
   ========================================================================== */
section { padding: 88px 0; position: relative; }
.section-alt { background: var(--black-soft); }
.section-head { max-width: 680px; margin: 0 auto 52px; text-align: center; }
.section-head h2 { font-size: clamp(1.8rem, 3vw, 2.5rem); }
.section-head.left { margin-left: 0; text-align: left; }

/* ---- Cards de oferta principal (TTI / EJA) ---- */
.offer-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 28px;
}
.offer-card {
    background: var(--charcoal);
    border: 1px solid var(--hairline);
    border-radius: var(--radius-lg);
    padding: 40px;
    position: relative;
    overflow: hidden;
    transition: transform var(--transition), border-color var(--transition), box-shadow var(--transition);
}
.offer-card::before {
    content: "";
    position: absolute; inset: 0;
    background: radial-gradient(560px circle at var(--mx,50%) var(--my,0%), rgba(217,164,65,.10), transparent 60%);
    opacity: 0; transition: opacity var(--transition);
    pointer-events: none;
}
.offer-card:hover::before { opacity: 1; }
.offer-card:hover { transform: translateY(-6px); border-color: var(--gold-700); box-shadow: var(--shadow-soft); }
.offer-flag {
    display: inline-block;
    background: var(--gradient-gold);
    color: var(--black);
    font-size: .74rem;
    font-weight: 800;
    text-transform: uppercase;
    letter-spacing: .06em;
    padding: 6px 14px;
    border-radius: 999px;
    margin-bottom: 18px;
}
.offer-card h3 { font-size: 1.7rem; margin-bottom: .35em; }
.offer-card p.offer-desc { color: var(--cream-dim); margin-bottom: 22px; }
.offer-list { display: flex; flex-direction: column; gap: 10px; margin-bottom: 28px; }
.offer-list li { display: flex; gap: 10px; align-items: flex-start; font-size: .95rem; color: var(--cream); }
.offer-list svg { width: 18px; height: 18px; fill: var(--gold-300); flex-shrink: 0; margin-top: 3px; }

@media (max-width: 860px) {
    .offer-grid { grid-template-columns: 1fr; }
}

/* ---- Diferenciais ---- */
.diff-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
}
.diff-card {
    text-align: center;
    padding: 30px 20px;
    border-radius: var(--radius-md);
    border: 1px solid var(--hairline);
    transition: transform var(--transition), border-color var(--transition);
}
.diff-card:hover { transform: translateY(-4px); border-color: var(--gold-700); }
.diff-icon {
    width: 56px; height: 56px;
    margin: 0 auto 18px;
    display: flex; align-items: center; justify-content: center;
    border-radius: 50%;
    background: rgba(217,164,65,.12);
}
.diff-icon svg { width: 26px; height: 26px; fill: var(--gold-300); }
.diff-card h3 { font-size: 1.08rem; margin-bottom: .4em; }
.diff-card p { color: var(--cream-dim); font-size: .92rem; margin: 0; }

@media (max-width: 900px) { .diff-grid { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 540px) { .diff-grid { grid-template-columns: 1fr; } }

/* ---- Cursos técnicos preview (home) ---- */
.courses-preview-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 18px;
}
.course-chip {
    background: var(--charcoal);
    border: 1px solid var(--hairline);
    border-radius: var(--radius-sm);
    padding: 16px 18px;
    font-size: .92rem;
    font-weight: 600;
    color: var(--cream);
    transition: border-color var(--transition), transform var(--transition), background var(--transition);
    display: flex; align-items: center; gap: 10px;
}
.course-chip:hover { border-color: var(--gold-500); transform: translateX(4px); background: var(--charcoal-2); }
.course-chip svg { width: 15px; height: 15px; fill: var(--gold-300); flex-shrink: 0; }
.courses-preview-more { text-align: center; margin-top: 34px; }

@media (max-width: 900px) { .courses-preview-grid { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 560px) { .courses-preview-grid { grid-template-columns: 1fr; } }

/* ==========================================================================
   Página de curso (TTI / EJA)
   ========================================================================== */
.page-hero {
    background: var(--gradient-dark);
    padding: 80px 0 60px;
    position: relative;
    overflow: hidden;
    border-bottom: 1px solid var(--hairline);
}
.breadcrumb { font-size: .85rem; color: var(--cream-dim); margin-bottom: 20px; }
.breadcrumb a { color: var(--gold-300); }
.breadcrumb a:hover { text-decoration: underline; }
.page-hero-grid { display: grid; grid-template-columns: 1.15fr .85fr; gap: 50px; align-items: center; }
.page-hero h1 { font-size: clamp(2rem, 4vw, 3rem); }
.page-hero .lede { margin-bottom: 28px; }

.stat-pills { display: flex; flex-wrap: wrap; gap: 14px; margin: 30px 0; }
.stat-pill {
    background: var(--charcoal);
    border: 1px solid var(--hairline);
    border-radius: 999px;
    padding: 10px 18px;
    font-size: .85rem;
    font-weight: 600;
    display: flex; align-items: center; gap: 8px;
}
.stat-pill svg { width: 16px; height: 16px; fill: var(--gold-300); }

.side-card {
    background: var(--charcoal);
    border: 1px solid var(--gold-700);
    border-radius: var(--radius-lg);
    padding: 34px;
    box-shadow: var(--shadow-soft);
}
.side-card h3 { font-size: 1.2rem; }
.side-card ul { display: flex; flex-direction: column; gap: 12px; margin: 20px 0 26px; }
.side-card li { display: flex; gap: 10px; font-size: .92rem; color: var(--cream-dim); }
.side-card li svg { width: 17px; height: 17px; fill: var(--gold-300); flex-shrink: 0; margin-top: 2px; }

/* ---- Grade de módulos / conteúdo programático ---- */
.module-list { display: flex; flex-direction: column; gap: 14px; max-width: 780px; }
.module-item {
    display: flex; gap: 20px; align-items: flex-start;
    background: var(--charcoal);
    border: 1px solid var(--hairline);
    border-radius: var(--radius-md);
    padding: 22px 26px;
    transition: border-color var(--transition), transform var(--transition);
}
.module-item:hover { border-color: var(--gold-600); transform: translateX(4px); }
.module-num {
    font-family: var(--font-display);
    font-size: 1.5rem;
    font-weight: 800;
    color: var(--gold-500);
    opacity: .7;
    min-width: 34px;
}
.module-item h4 { margin-bottom: .25em; font-size: 1.05rem; }
.module-item p { margin: 0; color: var(--cream-dim); font-size: .92rem; }

/* ---- Passo a passo ---- */
.steps-row {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 22px;
    counter-reset: step;
}
.step-card { position: relative; padding: 28px 22px 22px; border-radius: var(--radius-md); border: 1px solid var(--hairline); }
.step-card .step-num {
    font-family: var(--font-display);
    font-weight: 800;
    font-size: 2.2rem;
    background: var(--gradient-gold);
    -webkit-background-clip: text; background-clip: text; color: transparent;
    display: block;
    margin-bottom: 10px;
}
.step-card h4 { font-size: 1rem; margin-bottom: .3em; }
.step-card p { font-size: .88rem; color: var(--cream-dim); margin: 0; }
.step-connector { display: none; }

@media (max-width: 900px) { .steps-row { grid-template-columns: 1fr 1fr; } }
@media (max-width: 560px) { .steps-row { grid-template-columns: 1fr; } }

/* ---- FAQ ---- */
.faq-list { max-width: 780px; margin: 0 auto; display: flex; flex-direction: column; gap: 14px; }
.faq-item { border: 1px solid var(--hairline); border-radius: var(--radius-md); overflow: hidden; background: var(--charcoal); }
.faq-item summary {
    cursor: pointer;
    list-style: none;
    padding: 20px 26px;
    font-weight: 700;
    font-family: var(--font-display);
    font-size: 1.05rem;
    display: flex; align-items: center; justify-content: space-between; gap: 16px;
    color: var(--white);
}
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary::after {
    content: "+";
    font-size: 1.5rem;
    color: var(--gold-300);
    transition: transform var(--transition);
    flex-shrink: 0;
}
.faq-item[open] summary::after { transform: rotate(45deg); }
.faq-item .faq-answer { padding: 0 26px 22px; color: var(--cream-dim); font-size: .95rem; }

/* ==========================================================================
   Página de cursos técnicos (listagem)
   ========================================================================== */
.category-nav {
    display: flex; flex-wrap: wrap; gap: 10px;
    margin-bottom: 50px;
}
.category-nav a {
    border: 1px solid var(--hairline);
    border-radius: 999px;
    padding: 8px 16px;
    font-size: .85rem;
    font-weight: 600;
    color: var(--cream-dim);
    transition: border-color var(--transition), color var(--transition), background var(--transition);
}
.category-nav a:hover { border-color: var(--gold-500); color: var(--white); background: rgba(217,164,65,.08); }

.category-block { margin-bottom: 60px; scroll-margin-top: 110px; }
.category-block h2 {
    font-size: 1.5rem;
    display: flex; align-items: center; gap: 14px;
    margin-bottom: 24px;
    padding-bottom: 14px;
    border-bottom: 1px solid var(--hairline);
}
.category-block h2 .cat-count { font-family: var(--font-body); font-size: .78rem; font-weight: 700; color: var(--gold-300); border: 1px solid var(--gold-700); border-radius: 999px; padding: 3px 12px; }

.course-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }
.course-card {
    background: var(--charcoal);
    border: 1px solid var(--hairline);
    border-radius: var(--radius-md);
    padding: 20px 22px;
    display: flex; align-items: flex-start; gap: 12px;
    transition: transform var(--transition), border-color var(--transition), background var(--transition);
    position: relative;
}
.course-card:hover { transform: translateY(-4px); border-color: var(--gold-500); background: var(--charcoal-2); }
.course-card svg.check { width: 19px; height: 19px; fill: var(--gold-300); flex-shrink: 0; margin-top: 2px; }
.course-card span { font-size: .93rem; font-weight: 600; line-height: 1.4; }
.course-card.highlight { border-color: var(--gold-500); background: linear-gradient(135deg, rgba(217,164,65,.14), rgba(217,164,65,.04)); }
.course-card.highlight::after {
    content: "Destaque";
    position: absolute; top: -10px; right: 14px;
    background: var(--gradient-gold);
    color: var(--black);
    font-size: .68rem;
    font-weight: 800;
    text-transform: uppercase;
    letter-spacing: .05em;
    padding: 3px 10px;
    border-radius: 999px;
}

@media (max-width: 900px) { .course-grid { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 560px) { .course-grid { grid-template-columns: 1fr; } }

/* ==========================================================================
   Faixa CTA final
   ========================================================================== */
.cta-band {
    background: var(--charcoal);
    border-top: 1px solid var(--hairline);
    border-bottom: 1px solid var(--hairline);
    padding: 54px 0;
}
.cta-band-inner {
    display: flex; align-items: center; justify-content: space-between; gap: 24px; flex-wrap: wrap;
}
.cta-band h2 { font-size: 1.6rem; margin: 0; }
.cta-band .eyebrow { margin-bottom: .3em; }

/* ==========================================================================
   Rodapé
   ========================================================================== */
.site-footer { background: var(--black-soft); padding: 70px 0 0; border-top: 1px solid var(--hairline); }
.footer-grid {
    display: grid;
    grid-template-columns: 1.4fr 1fr 1fr;
    gap: 50px;
    padding-bottom: 50px;
}
.footer-logo { height: 60px; margin-bottom: 16px; }
.footer-slogan { font-family: var(--font-display); font-style: italic; color: var(--gold-300); font-size: 1.1rem; margin-bottom: 10px; }
.footer-desc { color: var(--cream-dim); font-size: .92rem; max-width: 340px; }
.footer-links h3, .footer-contact h3 { font-size: .95rem; text-transform: uppercase; letter-spacing: .06em; color: var(--gold-300); margin-bottom: 18px; }
.footer-links ul, .footer-contact ul { display: flex; flex-direction: column; gap: 12px; margin-bottom: 20px; }
.footer-links a, .footer-contact a { color: var(--cream-dim); font-size: .93rem; transition: color var(--transition); }
.footer-links a:hover, .footer-contact a:hover { color: var(--gold-300); }
.footer-bottom {
    border-top: 1px solid var(--hairline);
    padding: 22px 0;
    display: flex; justify-content: space-between; flex-wrap: wrap; gap: 8px;
    font-size: .82rem; color: var(--cream-dim);
}

@media (max-width: 800px) {
    .footer-grid { grid-template-columns: 1fr; gap: 34px; }
}

/* ---- Botão flutuante do WhatsApp ---- */
.whatsapp-float {
    position: fixed;
    bottom: 22px; right: 22px;
    width: 58px; height: 58px;
    border-radius: 50%;
    background: var(--success);
    display: flex; align-items: center; justify-content: center;
    box-shadow: 0 10px 30px -6px rgba(37,211,102,.6);
    z-index: 80;
    animation: pulse-wa 2.6s ease-in-out infinite;
    transition: transform var(--transition);
}
.whatsapp-float:hover { transform: scale(1.08); }
.whatsapp-float svg { width: 30px; height: 30px; fill: var(--black); }
@keyframes pulse-wa {
    0%, 100% { box-shadow: 0 10px 30px -6px rgba(37,211,102,.6); }
    50% { box-shadow: 0 10px 30px -6px rgba(37,211,102,.95), 0 0 0 8px rgba(37,211,102,.12); }
}

/* ==========================================================================
   Reveal on scroll
   ========================================================================== */
.reveal { opacity: 0; transform: translateY(28px); transition: opacity .7s ease, transform .7s ease; }
.reveal.is-visible { opacity: 1; transform: translateY(0); }
.reveal-stagger > * { opacity: 0; transform: translateY(24px); transition: opacity .6s ease, transform .6s ease; }
.reveal-stagger.is-visible > * { opacity: 1; transform: translateY(0); }
.reveal-stagger.is-visible > *:nth-child(1) { transition-delay: .05s; }
.reveal-stagger.is-visible > *:nth-child(2) { transition-delay: .12s; }
.reveal-stagger.is-visible > *:nth-child(3) { transition-delay: .19s; }
.reveal-stagger.is-visible > *:nth-child(4) { transition-delay: .26s; }
.reveal-stagger.is-visible > *:nth-child(5) { transition-delay: .33s; }
.reveal-stagger.is-visible > *:nth-child(6) { transition-delay: .40s; }

/* ---- Utilitários ---- */
.text-center { text-align: center; }
.mt-lg { margin-top: 48px; }