/* ============================================================
   Duo Casas · Auditoria FSBO · Stylesheet premium
   Identidade: Charcoal #1A1A1A + Dark Goldenroad #E31B23 + Poppins
   ============================================================ */

/* ---------- TOKENS ---------- */
:root {
  --charcoal: #1A1A1A;
  --charcoal-deep: #0D0D0D;
  --charcoal-soft: #2A2A2A;
  --charcoal-line: rgba(255, 255, 255, 0.08);

  --gold: #E31B23;
  --gold-bright: #F03A42;
  --gold-soft: rgba(227, 27, 35, 0.12);
  --gold-line: rgba(227, 27, 35, 0.35);

  --bone: #FAFAFA;
  --bone-deep: #EAEAEA;
  --paper: #FFFFFF;

  --ink: #1A1A1A;
  --ink-soft: #4A4A4A;
  --ink-mute: #7A7A7A;

  --white: #FFFFFF;
  --white-mute: rgba(255, 255, 255, 0.72);
  --white-faint: rgba(255, 255, 255, 0.45);

  --success: #2E8B57;
  --danger: #B85450;

  --shadow-card: 0 30px 60px -20px rgba(13, 13, 13, 0.25);
  --shadow-soft: 0 8px 24px -8px rgba(13, 13, 13, 0.18);

  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 16px;
  --radius-pill: 999px;

  --container: 1180px;
  --container-narrow: 760px;
}

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

html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }

body {
  font-family: 'Poppins', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  font-weight: 400;
  font-size: 16px;
  line-height: 1.65;
  color: var(--ink);
  background: var(--paper);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}

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

a {
  color: inherit;
  text-decoration: none;
  transition: color 200ms ease, opacity 200ms ease;
}

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

input, select, textarea { font-family: inherit; font-size: 1rem; }

em, i { font-style: italic; }

::selection { background: var(--gold); color: var(--charcoal-deep); }

/* ---------- LAYOUT ---------- */
.container {
  width: 100%;
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 28px;
}
.container--narrow { max-width: var(--container-narrow); }

.hidden { display: none !important; }

/* ---------- LOGO ---------- */
.logo {
  display: inline-flex;
  align-items: center;
  line-height: 1;
  text-decoration: none;
}
.logo img {
  height: 28px;
  width: auto;
  display: block;
  /* O PNG é escuro: força renderização a branco em fundos charcoal */
  filter: brightness(0) invert(1);
  transition: opacity 200ms ease;
}
.logo:hover img {
  opacity: 0.85;
}
.logo--footer img {
  height: 36px;
}

/* ---------- NAV ---------- */
.nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  background: rgba(13, 13, 13, 0.85);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--charcoal-line);
  padding: 18px 0;
}
.nav__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.nav__links {
  display: flex;
  align-items: center;
  gap: 32px;
}
.nav__links a {
  color: var(--white-mute);
  font-size: 0.875rem;
  font-weight: 500;
  letter-spacing: 0.05em;
  text-transform: uppercase;
}
.nav__links a:hover { color: var(--gold-bright); }

/* ---------- BUTTONS ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 16px 32px;
  font-family: 'Poppins', sans-serif;
  font-size: 0.9rem;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  text-align: center;
  border-radius: var(--radius-pill);
  cursor: pointer;
  transition: all 220ms cubic-bezier(0.22, 0.61, 0.36, 1);
  border: 1px solid transparent;
  white-space: nowrap;
}
.btn--primary {
  background: var(--gold);
  color: var(--charcoal-deep);
}
.btn--primary:hover {
  background: var(--gold-bright);
  transform: translateY(-1px);
  box-shadow: 0 8px 20px -6px rgba(227, 27, 35, 0.5);
}
.btn--ghost {
  background: transparent;
  color: var(--white);
  border-color: var(--gold);
  padding: 12px 24px;
}
.btn--ghost:hover {
  background: var(--gold);
  color: var(--charcoal-deep);
}
.btn--block {
  display: flex;
  width: 100%;
  padding: 20px 32px;
  font-size: 0.95rem;
}

/* ---------- HERO ---------- */
.hero {
  position: relative;
  background: var(--charcoal-deep);
  background-image:
    radial-gradient(ellipse at top right, rgba(227, 27, 35, 0.15), transparent 50%),
    radial-gradient(ellipse at bottom left, rgba(26, 26, 26, 0.6), transparent 50%),
    linear-gradient(180deg, var(--charcoal-deep) 0%, var(--charcoal) 100%);
  color: var(--white);
  padding: 180px 0 120px;
  overflow: hidden;
}
.hero::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0; bottom: 0;
  background-image: url('hero-bg.jpg');
  background-size: cover;
  background-position: center;
  opacity: 0;
  pointer-events: none;
  /* Quando houver imagem real em assets/hero-bg.jpg, mudar opacity para 0.18 */
}
.hero__inner {
  position: relative;
  z-index: 1;
  max-width: 880px;
}
.eyebrow {
  display: inline-block;
  font-size: 0.8rem;
  font-weight: 500;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--gold-bright);
  margin-bottom: 28px;
  padding-bottom: 8px;
  border-bottom: 1px solid var(--gold-line);
}
.hero h1 {
  font-family: 'Poppins', sans-serif;
  font-weight: 700;
  font-size: clamp(2.4rem, 5.4vw, 4.6rem);
  line-height: 1.05;
  letter-spacing: -0.02em;
  margin-bottom: 36px;
}
.hero h1 em {
  font-style: italic;
  font-weight: 500;
  color: var(--gold-bright);
}
.hero__lead {
  font-size: clamp(1rem, 1.25vw, 1.18rem);
  font-weight: 300;
  line-height: 1.7;
  color: var(--white-mute);
  max-width: 640px;
  margin-bottom: 40px;
}
.hero__small {
  margin-top: 18px;
  font-size: 0.85rem;
  color: var(--white-faint);
  font-weight: 300;
}

/* ---------- PROOF ---------- */
.proof {
  background: var(--charcoal);
  color: var(--white);
  padding: 96px 0;
  border-top: 1px solid var(--charcoal-line);
}
.proof__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0;
}
.proof__item {
  padding: 0 36px;
  position: relative;
}
.proof__item:not(:last-child)::after {
  content: '';
  position: absolute;
  right: 0; top: 10%;
  width: 1px;
  height: 80%;
  background: var(--gold-line);
}
.proof__item:first-child { padding-left: 0; }
.proof__item:last-child { padding-right: 0; }
.proof__num {
  display: block;
  font-family: 'Poppins', sans-serif;
  font-weight: 700;
  font-size: clamp(3.5rem, 6vw, 5.5rem);
  line-height: 1;
  color: var(--gold);
  letter-spacing: -0.03em;
  margin-bottom: 20px;
}
.proof__item p {
  font-size: 1rem;
  font-weight: 400;
  line-height: 1.55;
  color: var(--white);
  margin-bottom: 16px;
}
.proof__source {
  display: block;
  font-size: 0.8rem;
  font-style: italic;
  color: var(--white-faint);
  font-weight: 300;
}

/* ---------- SECTION HEADERS ---------- */
.section-title {
  font-family: 'Poppins', sans-serif;
  font-weight: 700;
  font-size: clamp(2rem, 3.5vw, 2.8rem);
  line-height: 1.15;
  letter-spacing: -0.015em;
  color: var(--charcoal-deep);
  margin-bottom: 16px;
}
.section-sub {
  font-size: 1.05rem;
  font-weight: 300;
  color: var(--ink-soft);
  margin-bottom: 56px;
  max-width: 640px;
}

/* ---------- HOW ---------- */
.how {
  background: var(--bone);
  padding: 110px 0;
}
.how__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 36px;
  margin-top: 24px;
}
.how__step {
  background: var(--paper);
  padding: 40px 32px;
  border-radius: var(--radius-lg);
  border: 1px solid var(--bone-deep);
  transition: transform 300ms ease, box-shadow 300ms ease;
}
.how__step:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-card);
}
.how__num {
  display: block;
  font-family: 'Poppins', sans-serif;
  font-weight: 700;
  font-style: italic;
  font-size: 2.4rem;
  color: var(--gold);
  margin-bottom: 20px;
  letter-spacing: -0.02em;
}
.how__step h3 {
  font-family: 'Poppins', sans-serif;
  font-weight: 600;
  font-size: 1.25rem;
  color: var(--charcoal-deep);
  margin-bottom: 12px;
  letter-spacing: -0.01em;
}
.how__step p {
  font-size: 0.95rem;
  color: var(--ink-soft);
  line-height: 1.65;
}

/* ---------- FORM SECTION ---------- */
.form-section {
  background: var(--charcoal-deep);
  background-image:
    radial-gradient(ellipse at top, rgba(227, 27, 35, 0.06), transparent 60%);
  padding: 110px 0;
  color: var(--white);
}
.form-section .section-title { color: var(--white); }
.form-section .section-sub { color: var(--white-mute); }

.audit-form {
  background: var(--paper);
  padding: 56px 48px;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-card);
  color: var(--ink);
  margin-top: 24px;
}

.field {
  margin-bottom: 24px;
  display: flex;
  flex-direction: column;
}
.field label {
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--charcoal-deep);
  margin-bottom: 8px;
  letter-spacing: 0.01em;
}
.field .req {
  color: var(--gold);
  font-weight: 600;
}
.field input:not([type="checkbox"]):not([type="radio"]),
.field select {
  width: 100%;
  padding: 14px 16px;
  font-size: 1rem;
  font-weight: 400;
  background: var(--paper);
  border: 1px solid var(--bone-deep);
  border-radius: var(--radius-md);
  color: var(--ink);
  transition: border-color 180ms ease, box-shadow 180ms ease;
  appearance: none;
}
.field select {
  background-image: url("data:image/svg+xml;charset=UTF-8,%3csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8' viewBox='0 0 12 8'%3e%3cpath d='M1 1l5 5 5-5' stroke='%23153C4C' stroke-width='1.5' fill='none'/%3e%3c/svg%3e");
  background-repeat: no-repeat;
  background-position: right 16px center;
  padding-right: 44px;
}
.field input:not([type="checkbox"]):not([type="radio"]):focus,
.field select:focus {
  outline: none;
  border-color: var(--gold);
  box-shadow: 0 0 0 3px var(--gold-soft);
}
.field input:not([type="checkbox"]):not([type="radio"])::placeholder { color: var(--ink-mute); }
.field .hint {
  margin-top: 6px;
  font-size: 0.8rem;
  color: var(--ink-mute);
  font-style: italic;
}

.row-2 {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
}

/* ===== CONSENT · checkbox custom (input nativo escondido + span visual) ===== */
.field--check {
  display: block;
  margin-top: 8px;
  margin-bottom: 24px;
}
.consent {
  position: relative;
  display: flex;
  align-items: flex-start;
  gap: 12px;
  cursor: pointer;
  user-select: none;
  padding: 4px 0;
}
/* Input nativo: invisível mas funcional (mantém focus, click, keyboard) */
.consent input[type="checkbox"] {
  position: absolute;
  top: 6px;
  left: 0;
  width: 22px;
  height: 22px;
  margin: 0;
  padding: 0;
  opacity: 0;
  cursor: pointer;
  z-index: 1;
}
/* Marca visual desenhada em CSS */
.consent__mark {
  flex: 0 0 22px;
  width: 22px;
  height: 22px;
  margin-top: 2px;
  border: 2px solid var(--bone-deep);
  border-radius: 4px;
  background: var(--paper);
  position: relative;
  transition: background 180ms ease, border-color 180ms ease, box-shadow 180ms ease;
}
/* Estado checked: fundo dourado + tick branco */
.consent input[type="checkbox"]:checked ~ .consent__mark {
  background: var(--gold);
  border-color: var(--gold);
}
.consent input[type="checkbox"]:checked ~ .consent__mark::after {
  content: '';
  position: absolute;
  left: 5px;
  top: 1px;
  width: 6px;
  height: 11px;
  border: solid var(--paper);
  border-width: 0 2px 2px 0;
  transform: rotate(45deg);
}
/* Focus ring para acessibilidade keyboard */
.consent input[type="checkbox"]:focus-visible ~ .consent__mark {
  box-shadow: 0 0 0 3px var(--gold-soft);
  border-color: var(--gold);
}
.consent__text {
  flex: 1;
  font-size: 0.88rem;
  font-weight: 400;
  color: var(--ink-soft);
  line-height: 1.5;
}

.form__note {
  margin-top: 18px;
  font-size: 0.82rem;
  color: var(--ink-mute);
  text-align: center;
  font-style: italic;
  line-height: 1.55;
}
.form__note a {
  color: var(--gold);
  text-decoration: underline;
  text-decoration-thickness: 1px;
  text-underline-offset: 2px;
  font-style: normal;
  transition: color 180ms ease;
}
.form__note a:hover { color: var(--charcoal-deep); }

/* ---------- PROCESSING STATE ---------- */
.processing {
  background: var(--paper);
  padding: 64px 48px;
  border-radius: var(--radius-lg);
  text-align: center;
  color: var(--ink);
  box-shadow: var(--shadow-card);
  margin-top: 24px;
}
.processing__animation {
  width: 96px;
  height: 96px;
  margin: 0 auto 32px;
  position: relative;
}
.orbit {
  width: 100%;
  height: 100%;
  border-radius: 50%;
  border: 3px solid var(--bone-deep);
  border-top-color: var(--gold);
  animation: orbit-spin 1.2s linear infinite;
}
.orbit span {
  position: absolute;
  top: -6px;
  left: 50%;
  transform: translateX(-50%);
  width: 10px;
  height: 10px;
  background: var(--gold);
  border-radius: 50%;
  box-shadow: 0 0 12px var(--gold);
}
@keyframes orbit-spin {
  to { transform: rotate(360deg); }
}
.processing__title {
  font-family: 'Poppins', sans-serif;
  font-weight: 600;
  font-size: 1.5rem;
  color: var(--charcoal-deep);
  margin-bottom: 28px;
}
.processing__steps {
  list-style: none;
  text-align: left;
  max-width: 480px;
  margin: 0 auto 28px;
}
.processing__step {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 12px 0;
  font-size: 0.95rem;
  color: var(--ink-mute);
  border-bottom: 1px solid var(--bone-deep);
  transition: color 280ms ease;
}
.processing__step::before {
  content: '';
  width: 18px;
  height: 18px;
  border-radius: 50%;
  border: 2px solid var(--bone-deep);
  flex-shrink: 0;
  transition: all 280ms ease;
}
.processing__step.active {
  color: var(--charcoal-deep);
  font-weight: 500;
}
.processing__step.active::before {
  border-color: var(--gold);
  background: var(--gold);
  box-shadow: 0 0 0 4px var(--gold-soft);
}
.processing__step.done {
  color: var(--ink-soft);
}
.processing__step.done::before {
  border-color: var(--success);
  background: var(--success);
  background-image: url("data:image/svg+xml;charset=UTF-8,%3csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'%3e%3cpath d='M2 6l3 3 5-6' stroke='white' stroke-width='2' fill='none' stroke-linecap='round' stroke-linejoin='round'/%3e%3c/svg%3e");
  background-position: center;
  background-repeat: no-repeat;
}
.processing__hint {
  font-size: 0.85rem;
  color: var(--ink-mute);
  font-style: italic;
}

/* ---------- RESULT STATE ---------- */
.result {
  background: var(--paper);
  padding: 56px 48px;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-card);
  color: var(--ink);
  margin-top: 24px;
}
.result__header {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  padding-bottom: 36px;
  border-bottom: 1px solid var(--bone-deep);
  margin-bottom: 36px;
}
.score-circle {
  width: 160px;
  height: 160px;
  margin-bottom: 20px;
  position: relative;
}
.score-circle svg {
  width: 100%;
  height: 100%;
  transform: rotate(-90deg);
}
.score-circle__track {
  fill: none;
  stroke: var(--bone-deep);
  stroke-width: 8;
}
.score-circle__progress {
  fill: none;
  stroke: var(--gold);
  stroke-width: 8;
  stroke-linecap: round;
  transition: stroke-dashoffset 1.4s cubic-bezier(0.22, 0.61, 0.36, 1);
}
.score-circle__value {
  position: absolute;
  inset: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  font-family: 'Poppins', sans-serif;
}
.score-circle__num {
  font-size: 3rem;
  font-weight: 700;
  color: var(--charcoal-deep);
  line-height: 1;
  letter-spacing: -0.03em;
}
.score-circle__max {
  font-size: 0.8rem;
  color: var(--ink-mute);
  margin-top: 4px;
  font-weight: 400;
}
.result__interpretation {
  font-family: 'Poppins', sans-serif;
  font-weight: 600;
  font-size: 1.4rem;
  color: var(--charcoal-deep);
  margin-bottom: 8px;
}
.result__interpretation em {
  color: var(--gold);
}
.result__sub {
  font-size: 0.95rem;
  color: var(--ink-soft);
  max-width: 440px;
}
.result__section {
  margin-bottom: 36px;
}
.result__section-title {
  font-family: 'Poppins', sans-serif;
  font-weight: 600;
  font-size: 0.85rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--gold);
  margin-bottom: 20px;
  padding-bottom: 8px;
  border-bottom: 1px solid var(--gold-line);
}
.result__card {
  padding: 20px 22px;
  border-radius: var(--radius-md);
  margin-bottom: 14px;
  border-left: 3px solid;
}
.result__card--strong {
  background: rgba(46, 139, 87, 0.06);
  border-left-color: var(--success);
}
.result__card--opportunity {
  background: var(--gold-soft);
  border-left-color: var(--gold);
}
.result__card h4 {
  font-family: 'Poppins', sans-serif;
  font-weight: 600;
  font-size: 1rem;
  color: var(--charcoal-deep);
  margin-bottom: 6px;
}
.result__card p {
  font-size: 0.92rem;
  color: var(--ink-soft);
  line-height: 1.6;
}
.result__card .sugestao {
  margin-top: 10px;
  padding-top: 10px;
  border-top: 1px dashed var(--gold-line);
  font-style: italic;
  color: var(--charcoal);
}
.result__recommendation {
  background: var(--charcoal-deep);
  color: var(--white);
  padding: 32px 28px;
  border-radius: var(--radius-md);
  margin-bottom: 28px;
}
.result__recommendation h4 {
  font-family: 'Poppins', sans-serif;
  font-weight: 600;
  font-size: 0.85rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--gold-bright);
  margin-bottom: 14px;
}
.result__recommendation p {
  font-size: 1rem;
  line-height: 1.65;
  color: var(--white);
  margin-bottom: 16px;
}
.result__recommendation p:last-child { margin-bottom: 0; }
.result__cta {
  text-align: center;
  padding-top: 16px;
}
.result__cta p {
  font-size: 0.9rem;
  color: var(--ink-soft);
  margin-bottom: 16px;
}

/* ---------- ERROR STATE ---------- */
.error {
  background: var(--paper);
  padding: 56px 48px;
  border-radius: var(--radius-lg);
  text-align: center;
  color: var(--ink);
  box-shadow: var(--shadow-card);
  margin-top: 24px;
}
.error h3 {
  font-family: 'Poppins', sans-serif;
  font-weight: 600;
  font-size: 1.4rem;
  color: var(--charcoal-deep);
  margin-bottom: 12px;
}
.error p {
  color: var(--ink-soft);
  margin-bottom: 16px;
  font-size: 0.95rem;
}
.error .btn { margin-top: 12px; }

/* ---------- FAQ ---------- */
.faq {
  background: var(--bone);
  padding: 110px 0;
}
.faq__item {
  background: var(--paper);
  border-radius: var(--radius-md);
  margin-bottom: 12px;
  border: 1px solid var(--bone-deep);
  overflow: hidden;
  transition: border-color 200ms ease;
}
.faq__item[open] { border-color: var(--gold-line); }
.faq__item summary {
  padding: 22px 28px;
  font-family: 'Poppins', sans-serif;
  font-weight: 500;
  font-size: 1.02rem;
  color: var(--charcoal-deep);
  cursor: pointer;
  list-style: none;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  transition: color 200ms ease;
}
.faq__item summary::-webkit-details-marker { display: none; }
.faq__item summary::after {
  content: '+';
  font-size: 1.5rem;
  color: var(--gold);
  font-weight: 300;
  transition: transform 250ms ease;
  flex-shrink: 0;
}
.faq__item[open] summary::after {
  transform: rotate(45deg);
}
.faq__item summary:hover { color: var(--gold); }
.faq__item p {
  padding: 0 28px 24px;
  color: var(--ink-soft);
  font-size: 0.95rem;
  line-height: 1.7;
}

/* ---------- FOOTER ---------- */
.footer {
  background: var(--charcoal-deep);
  color: var(--white);
  padding: 80px 0 40px;
}
.footer__grid {
  display: grid;
  grid-template-columns: 1.6fr 1fr 1fr;
  gap: 48px;
  margin-bottom: 56px;
  padding-bottom: 48px;
  border-bottom: 1px solid var(--charcoal-line);
}
.logo--footer {
  margin-bottom: 18px;
}
.footer__grid > div > p {
  color: var(--white-mute);
  font-size: 0.92rem;
  margin-bottom: 8px;
  font-weight: 300;
}
.footer__grid h4 {
  font-family: 'Poppins', sans-serif;
  font-weight: 600;
  font-size: 0.82rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--gold-bright);
  margin-bottom: 16px;
}
.footer__grid a:hover { color: var(--gold-bright); }
.footer__ami {
  margin-top: 14px;
  font-size: 0.82rem;
  color: var(--white-faint);
  letter-spacing: 0.05em;
  text-transform: uppercase;
}
.footer__disclaimer,
.footer__regulation {
  font-size: 0.78rem;
  color: var(--white-faint);
  line-height: 1.65;
  margin-bottom: 16px;
  font-style: italic;
  font-weight: 300;
}
.footer__regulation { font-style: normal; }
.footer__credit {
  font-size: 0.78rem;
  color: var(--white-faint);
  text-align: right;
  margin-top: 32px;
  padding-top: 24px;
  border-top: 1px solid var(--charcoal-line);
}
.footer__credit img { filter: invert(1) brightness(1.5); }

/* ---------- RESPONSIVE ---------- */
@media (max-width: 880px) {
  .container { padding: 0 22px; }

  .nav { padding: 14px 0; }
  .nav__links { gap: 16px; }
  .nav__links a:not(.btn) { display: none; }

  .hero { padding: 140px 0 80px; }
  .hero h1 { font-size: clamp(2rem, 9vw, 3.2rem); }
  .hero__lead { font-size: 1rem; }

  .proof { padding: 64px 0; }
  .proof__grid { grid-template-columns: 1fr; gap: 48px; }
  .proof__item { padding: 0; }
  .proof__item:not(:last-child)::after {
    right: 10%; top: auto; bottom: -24px;
    width: 80%; height: 1px;
    left: 10%;
  }
  .proof__num { font-size: 3.5rem; }

  .how { padding: 72px 0; }
  .how__grid { grid-template-columns: 1fr; gap: 18px; }
  .how__step { padding: 28px 24px; }

  .section-title { font-size: 1.8rem; }
  .section-sub { font-size: 0.95rem; margin-bottom: 36px; }

  .form-section { padding: 72px 0; }
  .audit-form,
  .processing,
  .result,
  .error { padding: 36px 24px; }
  .row-2 { grid-template-columns: 1fr; gap: 0; }

  .faq { padding: 72px 0; }
  .faq__item summary { padding: 18px 22px; font-size: 0.95rem; }
  .faq__item p { padding: 0 22px 20px; }

  .footer { padding: 56px 0 28px; }
  .footer__grid {
    grid-template-columns: 1fr;
    gap: 32px;
    margin-bottom: 32px;
    padding-bottom: 32px;
  }
  .footer__credit { text-align: left; }
}

@media (max-width: 480px) {
  .hero h1 { font-size: 2rem; }
  .btn { padding: 14px 24px; font-size: 0.85rem; }
  .btn--block { padding: 18px 24px; }
}