/* ==========================================================
   E-Tron Energy — estilos
   ========================================================== */
:root {
  --navy-900: #071633;
  --navy-800: #0B1F44;
  --navy-700: #12306A;
  --navy-600: #1E4A9A;
  --sun: #FFC21A;
  --sun-light: #FFE45C;
  --sun-dark: #F59500;
  --green: #3CC84A;
  --green-dark: #1B8A35;
  --ink: #142140;
  --muted: #5B6886;
  --line: #E3E8F2;
  --bg: #FFFFFF;
  --bg-alt: #F4F7FC;
  --radius: 18px;
  --shadow: 0 10px 30px rgba(11, 31, 68, .08);
  --shadow-lg: 0 20px 50px rgba(11, 31, 68, .16);
  --header-h: 78px;
  --font-title: 'Montserrat', 'Segoe UI', Arial, sans-serif;
  --font-body: 'Inter', 'Segoe UI', Arial, sans-serif;
}
/* Chinês: fontes do sistema com suporte a CJK */
:root[data-lang="zh"] {
  --font-title: 'Montserrat', 'PingFang SC', 'Microsoft YaHei', 'Noto Sans SC', 'Hiragino Sans GB', sans-serif;
  --font-body: 'Inter', 'PingFang SC', 'Microsoft YaHei', 'Noto Sans SC', 'Hiragino Sans GB', sans-serif;
}
:root[data-lang="zh"] body { line-height: 1.8; }
:root[data-lang="zh"] .quote blockquote { font-style: normal; }

*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: var(--header-h); }
body {
  margin: 0;
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.65;
  color: var(--ink);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
}
img, svg { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
h1, h2, h3, h4 { font-family: var(--font-title); line-height: 1.2; margin: 0 0 .6em; color: var(--navy-800); }
h1 { font-size: clamp(2.1rem, 4.6vw, 3.6rem); font-weight: 800; }
h2 { font-size: clamp(1.7rem, 3.2vw, 2.5rem); font-weight: 800; }
h3 { font-size: 1.2rem; font-weight: 700; }
p { margin: 0 0 1em; }

.container { width: min(1200px, 100%); margin-inline: auto; padding-inline: 20px; }

.skip {
  position: absolute; left: -999px; top: 8px; z-index: 200;
  background: var(--sun); color: var(--navy-800); padding: 8px 14px; border-radius: 8px; font-weight: 600;
}
.skip:focus { left: 8px; }

:focus-visible { outline: 3px solid var(--sun); outline-offset: 3px; border-radius: 6px; }

/* ---------- Botões ---------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: .5em;
  font-family: var(--font-title); font-weight: 700; font-size: .98rem;
  padding: .95em 1.6em; border-radius: 999px; border: 2px solid transparent;
  cursor: pointer; transition: transform .2s, box-shadow .2s, background .2s, color .2s;
  white-space: nowrap;
}
.btn:hover { transform: translateY(-2px); }
.btn--sun {
  background: linear-gradient(180deg, var(--sun-light), var(--sun) 55%, var(--sun-dark));
  color: var(--navy-800);
  box-shadow: 0 8px 22px rgba(255, 178, 0, .35);
}
.btn--sun:hover { box-shadow: 0 12px 28px rgba(255, 178, 0, .5); }
.btn--ghost { border-color: rgba(255,255,255,.45); color: #fff; }
.btn--ghost:hover { background: rgba(255,255,255,.1); border-color: #fff; }
.btn--sm { padding: .65em 1.2em; font-size: .9rem; }
.btn--block { width: 100%; }

.eyebrow {
  display: inline-block; font-family: var(--font-title); font-weight: 700;
  font-size: .78rem; letter-spacing: .14em; text-transform: uppercase;
  color: var(--sun); margin-bottom: 1rem;
  padding: .4em .9em; border-radius: 999px; background: rgba(255, 194, 26, .12);
}
.eyebrow--dark { color: var(--green-dark); background: rgba(60, 200, 74, .12); }

/* ---------- Header ---------- */
.header {
  position: fixed; inset: 0 0 auto 0; z-index: 100;
  height: var(--header-h);
  background: rgba(11, 31, 68, .0);
  transition: background .3s, box-shadow .3s, height .3s;
}
.header.is-scrolled {
  background: rgba(7, 22, 51, .94);
  backdrop-filter: blur(10px);
  box-shadow: 0 6px 24px rgba(0,0,0,.18);
}
.header__inner { height: 100%; display: flex; align-items: center; justify-content: space-between; gap: 20px; }
.brand img { width: 150px; height: auto; }

.nav { display: flex; align-items: center; gap: 26px; }
.nav a:not(.btn) {
  color: rgba(255,255,255,.85); font-weight: 500; font-size: .95rem; position: relative; padding: 4px 0;
}
.nav a:not(.btn)::after {
  content: ""; position: absolute; left: 0; bottom: -2px; height: 2px; width: 0;
  background: var(--sun); transition: width .25s;
}
.nav a:not(.btn):hover, .nav a.is-active { color: #fff; }
.nav a:not(.btn):hover::after, .nav a.is-active::after { width: 100%; }

/* ---------- Seletor de idioma ---------- */
.header__tools { display: flex; align-items: center; gap: 6px; }
.lang { position: relative; }
.lang__btn {
  display: flex; align-items: center; gap: 6px; height: 40px; padding: 0 12px;
  border: 1.5px solid rgba(255,255,255,.3); border-radius: 999px; background: transparent;
  color: #fff; font: 600 .85rem var(--font-title); cursor: pointer; transition: border-color .2s, background .2s;
  white-space: nowrap;
}
.lang__btn:hover, .lang__btn[aria-expanded="true"] { border-color: var(--sun); background: rgba(255,255,255,.08); }
.lang__btn svg { width: 18px; height: 18px; fill: none; stroke: var(--sun); stroke-width: 1.8; }
.lang__list {
  position: absolute; right: 0; top: calc(100% + 8px); z-index: 120; min-width: 170px;
  list-style: none; margin: 0; padding: 6px; background: #fff; border-radius: 14px; box-shadow: var(--shadow-lg);
}
.lang__list button {
  width: 100%; display: flex; align-items: center; gap: 10px; padding: 10px 12px; border: 0; border-radius: 10px;
  background: transparent; color: var(--ink); font: 500 .95rem var(--font-body); text-align: left; cursor: pointer;
}
.lang__list button span {
  min-width: 30px; font: 700 .75rem var(--font-title); color: var(--navy-600);
  background: var(--bg-alt); border-radius: 6px; padding: 3px 6px; text-align: center;
}
.lang__list button:hover, .lang__list button:focus-visible { background: var(--bg-alt); outline: none; }
.lang__list button[aria-selected="true"] { background: rgba(255,194,26,.16); font-weight: 600; }
.lang__list button[aria-selected="true"] span { background: var(--sun); color: var(--navy-800); }

.nav-toggle {
  display: none; width: 44px; height: 44px; border: 0; background: transparent; cursor: pointer;
  flex-direction: column; justify-content: center; align-items: center; gap: 5px;
}
.nav-toggle span { width: 24px; height: 2.5px; background: #fff; border-radius: 2px; transition: .3s; }
.nav-toggle[aria-expanded="true"] span:nth-child(1) { transform: translateY(7.5px) rotate(45deg); }
.nav-toggle[aria-expanded="true"] span:nth-child(2) { opacity: 0; }
.nav-toggle[aria-expanded="true"] span:nth-child(3) { transform: translateY(-7.5px) rotate(-45deg); }

/* ---------- Hero ---------- */
.hero {
  position: relative; overflow: hidden;
  padding: calc(var(--header-h) + 60px) 0 120px;
  color: #fff;
  background:
    radial-gradient(900px 500px at 85% 15%, rgba(255, 194, 26, .18), transparent 60%),
    radial-gradient(700px 500px at 0% 100%, rgba(60, 200, 74, .14), transparent 60%),
    linear-gradient(160deg, var(--navy-900) 0%, var(--navy-800) 50%, var(--navy-700) 100%);
}
.hero::before {
  content: ""; position: absolute; inset: 0; pointer-events: none; opacity: .5;
  background-image: radial-gradient(rgba(255,255,255,.08) 1px, transparent 1px);
  background-size: 28px 28px;
  mask-image: linear-gradient(180deg, #000, transparent 85%);
}
.hero__inner { position: relative; display: grid; grid-template-columns: 1.05fr .95fr; align-items: center; gap: 48px; }
.hero h1 { color: #fff; }
.hero h1 em {
  font-style: normal;
  background: linear-gradient(90deg, var(--sun-light), var(--sun) 50%, var(--green) 100%);
  -webkit-background-clip: text; background-clip: text; color: transparent;
}
.lead { font-size: 1.12rem; color: rgba(255,255,255,.82); max-width: 560px; }
.hero__cta { display: flex; flex-wrap: wrap; gap: 14px; margin: 30px 0 34px; }
.hero__badges { list-style: none; padding: 0; margin: 0; display: flex; flex-wrap: wrap; gap: 10px 26px; color: rgba(255,255,255,.75); font-size: .92rem; }
.hero__badges li { position: relative; padding-left: 18px; }
.hero__badges li::before { content: ""; position: absolute; left: 0; top: .55em; width: 8px; height: 8px; border-radius: 50%; background: var(--green); box-shadow: 0 0 0 4px rgba(60,200,74,.2); }
.hero__badges strong { color: var(--sun); font-family: var(--font-title); }
.hero__art img { width: 100%; filter: drop-shadow(0 30px 40px rgba(0,0,0,.35)); animation: float 6s ease-in-out infinite; }
.hero__wave { position: absolute; bottom: -1px; left: 0; width: 100%; height: 80px; fill: var(--bg); }

@keyframes float { 0%,100% { transform: translateY(0); } 50% { transform: translateY(-12px); } }

/* ---------- Seções ---------- */
.section { padding: 100px 0; }
.section--alt { background: var(--bg-alt); }
.section__head { text-align: center; max-width: 720px; margin: 0 auto 56px; }
.section__head p { color: var(--muted); font-size: 1.05rem; }

/* ---------- Cards ---------- */
.cards { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.card {
  position: relative; background: #fff; border: 1px solid var(--line); border-radius: var(--radius);
  padding: 32px 28px; box-shadow: var(--shadow); transition: transform .3s, box-shadow .3s, border-color .3s;
  overflow: hidden;
}
.card::after {
  content: ""; position: absolute; left: 0; right: 0; top: 0; height: 4px;
  background: linear-gradient(90deg, var(--sun), var(--green)); transform: scaleX(0); transform-origin: left; transition: transform .35s;
}
.card:hover { transform: translateY(-6px); box-shadow: var(--shadow-lg); border-color: transparent; }
.card:hover::after { transform: scaleX(1); }
.card p { color: var(--muted); margin: 0; }
.card__icon { width: 60px; height: 60px; border-radius: 16px; display: grid; place-items: center; margin-bottom: 20px; }
.card__icon svg { width: 34px; height: 34px; fill: none; stroke-width: 2.4; stroke-linecap: round; stroke-linejoin: round; }
.card__icon--sun { background: rgba(255, 194, 26, .16); }
.card__icon--sun svg { stroke: var(--sun-dark); }
.card__icon--green { background: rgba(60, 200, 74, .14); }
.card__icon--green svg { stroke: var(--green-dark); }
.card--cta {
  background: linear-gradient(150deg, var(--navy-800), var(--navy-600)); border: 0; color: #fff;
  display: flex; flex-direction: column; justify-content: center; align-items: flex-start; gap: 6px;
}
.card--cta h3 { color: #fff; }
.card--cta p { color: rgba(255,255,255,.8); margin-bottom: 18px; }

/* ---------- Etapas ---------- */
.steps { list-style: none; margin: 0; padding: 0; display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; counter-reset: s; }
.step {
  position: relative; background: #fff; border-radius: var(--radius); padding: 30px 28px 28px;
  box-shadow: var(--shadow); border-left: 4px solid var(--sun);
}
.step:nth-child(even) { border-left-color: var(--green); }
.step p { color: var(--muted); margin: 0; }
.step__num {
  display: inline-block; font-family: var(--font-title); font-weight: 800; font-size: 2.2rem; line-height: 1;
  background: linear-gradient(180deg, var(--sun), var(--sun-dark)); -webkit-background-clip: text; background-clip: text; color: transparent;
  margin-bottom: 12px;
}
.step:nth-child(even) .step__num { background-image: linear-gradient(180deg, var(--green), var(--green-dark)); }
.step--final { background: linear-gradient(150deg, var(--navy-800), var(--navy-700)); border-left-color: var(--sun); }
.step--final h3 { color: #fff; }
.step--final p { color: rgba(255,255,255,.8); }

/* ---------- Simulador ---------- */
.simulator {
  color: #fff;
  background:
    radial-gradient(600px 400px at 100% 0%, rgba(60,200,74,.18), transparent 60%),
    linear-gradient(140deg, var(--navy-900), var(--navy-800) 60%, var(--navy-700));
}
.simulator h2 { color: #fff; }
.simulator__inner { display: grid; grid-template-columns: 1fr 1fr; gap: 56px; align-items: center; }
.simulator__text > p { color: rgba(255,255,255,.8); }
.simulator__note { font-size: .82rem; color: rgba(255,255,255,.55) !important; margin-top: 18px; }
.sim-form label { display: block; font-weight: 600; margin: 24px 0 10px; }
.sim-form__row { display: flex; gap: 16px; align-items: center; }
.sim-form input[type="number"] {
  width: 140px; flex: none; font: 600 1.1rem var(--font-title); color: var(--navy-800);
  padding: 12px 14px; border-radius: 12px; border: 0; background: #fff;
}
.sim-form input[type="range"] { flex: 1; min-width: 0; accent-color: var(--sun); height: 6px; cursor: pointer; }

.sim-results { display: grid; grid-template-columns: repeat(2, 1fr); gap: 14px; }
.sim-card {
  background: rgba(255,255,255,.06); border: 1px solid rgba(255,255,255,.12); border-radius: 16px; padding: 18px 20px;
}
.sim-card span { display: block; font-size: .85rem; color: rgba(255,255,255,.7); }
.sim-card strong { font-family: var(--font-title); font-size: 1.45rem; color: #fff; }
.sim-card--main, .sim-card--wide { grid-column: 1 / -1; }
.sim-card--main { background: linear-gradient(135deg, rgba(255,194,26,.22), rgba(60,200,74,.18)); border-color: rgba(255,194,26,.4); }
.sim-card--main strong { font-size: clamp(2rem, 4vw, 2.8rem); color: var(--sun); }
.sim-card--wide strong { color: var(--green); }
.sim-results__btn { grid-column: 1 / -1; margin-top: 6px; }

/* ---------- Quem somos ---------- */
.about { display: grid; grid-template-columns: .95fr 1.05fr; gap: 64px; align-items: center; }
.about__art { position: relative; }
.about__art img { width: 100%; border-radius: 24px; box-shadow: var(--shadow-lg); }
.about__stamp {
  position: absolute; right: -16px; bottom: -22px; background: #fff; border-radius: 18px; padding: 16px 22px;
  box-shadow: var(--shadow-lg); text-align: center; border-bottom: 4px solid var(--sun);
}
.about__stamp strong { display: block; font-family: var(--font-title); font-size: 1.9rem; color: var(--navy-800); line-height: 1; }
.about__stamp span { font-size: .8rem; color: var(--muted); }
.about__text p { color: var(--muted); }
.checks { list-style: none; padding: 0; margin: 26px 0 0; display: grid; grid-template-columns: 1fr 1fr; gap: 12px 20px; }
.checks li { position: relative; padding-left: 32px; font-weight: 500; }
.checks li::before {
  content: ""; position: absolute; left: 0; top: 2px; width: 22px; height: 22px; border-radius: 50%;
  background: var(--green) url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='white' stroke-width='3.2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M6 12.5l4 4 8-9'/%3E%3C/svg%3E") center/14px no-repeat;
}

/* ---------- Números ---------- */
.stats { background: linear-gradient(90deg, var(--sun), var(--sun-dark)); padding: 46px 0; }
.stats__grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; text-align: center; }
.stat strong { display: block; font-family: var(--font-title); font-weight: 800; font-size: clamp(2rem, 4vw, 2.8rem); color: var(--navy-800); line-height: 1.1; }
.stat > span { color: var(--navy-700); font-weight: 600; font-size: .92rem; }

/* ---------- Depoimentos ---------- */
.slider { max-width: 820px; margin: 0 auto; overflow: hidden; }
.slider__track { display: flex; transition: transform .6s cubic-bezier(.65,0,.35,1); }
.quote {
  flex: 0 0 100%; margin: 0; padding: 44px 48px; background: #fff; border-radius: 24px; box-shadow: var(--shadow);
  text-align: center; position: relative;
}
.quote::before {
  content: "“"; position: absolute; top: -10px; left: 28px; font: 800 7rem/1 var(--font-title); color: rgba(255,194,26,.25);
}
.stars { color: var(--sun); font-size: 1.2rem; letter-spacing: 4px; margin-bottom: 14px; }
.quote blockquote { margin: 0 0 18px; font-size: 1.15rem; color: var(--ink); font-style: italic; }
.quote figcaption { font-weight: 600; color: var(--green-dark); font-size: .92rem; }
.slider__controls { display: flex; align-items: center; justify-content: center; gap: 18px; margin-top: 28px; }
.slider__btn {
  width: 46px; height: 46px; border-radius: 50%; border: 0; cursor: pointer; font-size: 1.6rem; line-height: 1;
  background: var(--navy-800); color: #fff; transition: background .2s;
}
.slider__btn:hover { background: var(--navy-600); }
.slider__dots { display: flex; gap: 8px; }
.slider__dots button { width: 10px; height: 10px; border-radius: 99px; border: 0; padding: 0; background: #C9D3E6; cursor: pointer; transition: width .3s, background .3s; }
.slider__dots button[aria-selected="true"] { width: 28px; background: var(--sun); }

/* ---------- Contato ---------- */
.contact { background: linear-gradient(160deg, var(--navy-900), var(--navy-800)); color: #fff; }
.contact h2 { color: #fff; }
.contact__inner { display: grid; grid-template-columns: .9fr 1.1fr; gap: 56px; align-items: start; }
.contact__info > p { color: rgba(255,255,255,.8); }
.contact__list { list-style: none; padding: 0; margin: 28px 0; display: grid; gap: 16px; }
.contact__list li { display: flex; align-items: center; gap: 14px; font-size: 1.08rem; font-weight: 500; }
.contact__list svg { width: 44px; height: 44px; padding: 11px; border-radius: 12px; background: rgba(255,255,255,.08); fill: var(--sun); flex: none; }
.contact__list a:hover { color: var(--sun); }
.socials { display: flex; gap: 12px; }
.socials a {
  width: 46px; height: 46px; border-radius: 50%; display: grid; place-items: center;
  background: rgba(255,255,255,.08); transition: background .2s, transform .2s;
}
.socials a:hover { background: var(--sun); transform: translateY(-3px); }
.socials a:hover svg { fill: var(--navy-800); }
.socials svg { width: 20px; height: 20px; fill: #fff; }

.form { background: #fff; color: var(--ink); border-radius: 24px; padding: 36px; box-shadow: var(--shadow-lg); }
.form h3 { font-size: 1.4rem; margin-bottom: 22px; }
.form__grid { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; margin-bottom: 18px; }
.field--full { grid-column: 1 / -1; }
.field label { display: block; font-size: .86rem; font-weight: 600; margin-bottom: 6px; color: var(--navy-700); }
.field input, .field select, .field textarea {
  width: 100%; font: inherit; color: var(--ink); padding: 12px 14px; border: 1.5px solid var(--line); border-radius: 12px;
  background: var(--bg-alt); transition: border-color .2s, background .2s;
}
.field input:focus, .field select:focus, .field textarea:focus { outline: none; border-color: var(--sun); background: #fff; }
.field input.is-invalid { border-color: #E5484D; background: #FFF5F5; }
.field textarea { resize: vertical; }
.form__error { color: #D93036; font-size: .9rem; margin: -6px 0 12px; }
.form__actions { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
.form__actions .btn svg { width: 20px; height: 20px; fill: currentColor; flex: none; }
.btn--wa { background: #25D366; color: #fff; box-shadow: 0 8px 22px rgba(37, 211, 102, .3); }
.btn--wa:hover { background: #1FBE5B; box-shadow: 0 12px 28px rgba(37, 211, 102, .45); }
.form__hint { font-size: .82rem; color: var(--muted); text-align: center; margin: 12px 0 0; }
.form__sent {
  margin: 14px 0 0; padding: 12px 16px; border-radius: 12px; text-align: center; font-size: .9rem;
  background: rgba(60, 200, 74, .1); border: 1px solid rgba(60, 200, 74, .35); color: var(--ink);
}
.form__sent strong { display: block; color: var(--green-dark); user-select: all; word-break: break-all; }

/* ---------- Rodapé ---------- */
.footer { background: var(--navy-900); color: rgba(255,255,255,.7); padding: 64px 0 0; font-size: .94rem; }
.footer__grid { display: grid; grid-template-columns: 1.4fr 1fr 1fr; gap: 40px; padding-bottom: 40px; }
.footer img { width: 180px; height: auto; margin-bottom: 14px; }
.footer h4 { color: #fff; font-size: 1rem; margin-bottom: 14px; }
.footer ul { list-style: none; padding: 0; margin: 0; display: grid; gap: 8px; }
.footer a:hover { color: var(--sun); }
.footer__bottom {
  border-top: 1px solid rgba(255,255,255,.1); padding-block: 20px; display: flex; justify-content: space-between; gap: 12px; flex-wrap: wrap;
  font-size: .85rem;
}

/* ---------- WhatsApp flutuante ---------- */
.wa-float {
  position: fixed; right: 22px; bottom: calc(22px + env(safe-area-inset-bottom, 0px)); z-index: 90;
  width: 60px; height: 60px; border-radius: 50%; display: grid; place-items: center;
  background: #25D366; box-shadow: 0 10px 25px rgba(37, 211, 102, .45);
  transition: transform .2s;
}
.wa-float::before {
  content: ""; position: absolute; inset: 0; border-radius: 50%; border: 2px solid #25D366;
  animation: ping 2.2s ease-out infinite;
}
.wa-float:hover { transform: scale(1.08); }
.wa-float svg { width: 32px; height: 32px; fill: #fff; }
@keyframes ping { from { transform: scale(1); opacity: .8; } to { transform: scale(1.6); opacity: 0; } }

/* ---------- Animação de entrada ---------- */
.js .reveal { opacity: 0; transform: translateY(28px); transition: opacity .7s ease, transform .7s ease; }
.js .reveal.is-visible { opacity: 1; transform: none; }

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation: none !important; transition: none !important; }
  .js .reveal { opacity: 1; transform: none; }
}

/* ---------- Responsivo ---------- */
/* Menu vira hambúrguer abaixo de 1180px (espaço para os textos mais longos, ex.: espanhol) */
@media (max-width: 1180px) {
  .nav-toggle { display: flex; }
  .header__tools { margin-left: auto; }
  .nav {
    position: fixed; top: var(--header-h); left: 0; right: 0;
    flex-direction: column; align-items: stretch; gap: 0;
    background: var(--navy-900); padding: 10px 20px 24px;
    box-shadow: 0 20px 30px rgba(0,0,0,.25);
    transform: translateY(-12px); opacity: 0; visibility: hidden; transition: .25s;
  }
  .nav.is-open { transform: none; opacity: 1; visibility: visible; }
  .nav a:not(.btn) { padding: 14px 0; border-bottom: 1px solid rgba(255,255,255,.08); }
  .nav a:not(.btn)::after { display: none; }
  .nav .btn { margin-top: 16px; }
  .header:has(.nav.is-open) { background: var(--navy-900); }
}

@media (max-width: 1024px) {
  .cards, .steps { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 900px) {
  :root { --header-h: 68px; }
  .brand img { width: 130px; }

  .hero { padding-top: calc(var(--header-h) + 40px); padding-bottom: 100px; }
  .hero__inner, .simulator__inner, .about, .contact__inner { grid-template-columns: minmax(0, 1fr); gap: 40px; }
  .hero__art { max-width: 480px; margin: 0 auto; }
  .about__art { max-width: 560px; }
  .stats__grid { grid-template-columns: repeat(2, 1fr); gap: 28px; }
  .footer__grid { grid-template-columns: 1fr 1fr; }
  .footer__grid > div:first-child { grid-column: 1 / -1; }
}

@media (max-width: 600px) {
  body { font-size: 15px; }
  .section { padding: 72px 0; }
  .section__head { margin-bottom: 40px; }
  .cards, .steps, .form__grid, .checks { grid-template-columns: minmax(0, 1fr); }
  .btn { white-space: normal; text-align: center; }
  .form__actions { grid-template-columns: minmax(0, 1fr); }
  .hero__cta .btn { flex: 1 1 100%; }
  .quote { padding: 36px 24px; }
  .quote blockquote { font-size: 1.02rem; }
  .form { padding: 26px 20px; }
  .sim-form input[type="number"] { width: 110px; }
  .sim-card strong { font-size: 1.2rem; }
  .about__stamp { right: 12px; bottom: -18px; }
  .footer__grid { grid-template-columns: 1fr; }
  .wa-float { width: 54px; height: 54px; right: 16px; }
}