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

html {
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
  scroll-behavior: smooth;
}

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  background: #fff;
  color: #0a0a0a;
  overflow: hidden;
  line-height: 1.6;
}

a {
  color: inherit;
  text-decoration: none;
}

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

/* =============================================
   VARIÁVEIS CSS
============================================= */
:root {
  --black: #0a0a0a;
  --white: #ffffff;
  --gray-100: #f7f7f7;
  --gray-200: #e8e8e8;
  --gray-300: #d0d0d0;
  --gray-400: #a0a0a0;
  --gray-500: #6b6b6b;
  --gray-600: #444444;
  --section-padding: clamp(80px, 12vw, 160px) clamp(20px, 5vw, 80px);
  --max-width: 1100px;
  --transition-smooth: cubic-bezier(0.16, 1, 0.3, 1);
}

/* =============================================
   INTRO OVERLAY
============================================= */
.intro {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  z-index: 9999;
  background: var(--white);
  display: flex;
  align-items: center;
  justify-content: center;
  will-change: opacity;
}

.intro__logo {
  width: clamp(100px, 20vw, 220px);
  opacity: 0;
  transform: scale(0.94);
  filter: blur(8px);
  will-change: opacity, transform, filter;
  user-select: none;
  -webkit-user-drag: none;
}

.intro__logo--visible {
  animation: logoIn 1.2s var(--transition-smooth) forwards;
}

.intro__logo--exit {
  animation: logoOut 0.7s cubic-bezier(0.55, 0, 1, 0.45) forwards;
}

.intro--exit {
  animation: overlayOut 0.6s cubic-bezier(0.55, 0, 1, 0.45) forwards;
}

@keyframes logoIn {
  0%   { opacity: 0; transform: scale(0.94); filter: blur(8px); }
  100% { opacity: 1; transform: scale(1);    filter: blur(0);   }
}

@keyframes logoOut {
  0%   { opacity: 1; transform: scale(1);    filter: blur(0);   }
  100% { opacity: 0; transform: scale(1.03); filter: blur(4px); }
}

@keyframes overlayOut {
  0%   { opacity: 1; }
  100% { opacity: 0; visibility: hidden; }
}

/* =============================================
   MAIN CONTENT
============================================= */
.main {
  opacity: 0;
  will-change: opacity;
}

.main--visible {
  animation: contentReveal 1s var(--transition-smooth) forwards;
}

@keyframes contentReveal {
  0%   { opacity: 0; }
  100% { opacity: 1; }
}

/* =============================================
   SCROLL REVEAL
============================================= */
.reveal {
  opacity: 0;
  transform: translateY(40px);
  transition: opacity 0.8s var(--transition-smooth),
              transform 0.8s var(--transition-smooth);
}

.reveal--visible {
  opacity: 1;
  transform: translateY(0);
}

.reveal-delay-1 { transition-delay: 0.1s; }
.reveal-delay-2 { transition-delay: 0.2s; }
.reveal-delay-3 { transition-delay: 0.3s; }
.reveal-delay-4 { transition-delay: 0.4s; }

/* =============================================
   NAVEGAÇÃO
============================================= */
.nav {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 100;
  padding: 24px clamp(20px, 5vw, 60px);
  display: flex;
  align-items: center;
  justify-content: space-between;
  transition: background 0.4s ease, box-shadow 0.4s ease;
}

.nav--scrolled {
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  box-shadow: 0 1px 0 var(--gray-200);
}

.nav__logo {
  height: 28px;
  width: auto;
}

.nav__cta {
  font-size: 0.8rem;
  font-weight: 500;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  padding: 10px 24px;
  border: 1px solid var(--black);
  transition: background 0.3s ease, color 0.3s ease;
}

.nav__cta:hover {
  background: var(--black);
  color: var(--white);
}

/* =============================================
   HERO SECTION
============================================= */
.hero {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  min-height: 100vh;
  padding: 120px clamp(20px, 5vw, 80px) 80px;
  text-align: center;
  position: relative;
}

.hero__tag {
  font-size: 0.75rem;
  font-weight: 500;
  letter-spacing: 0.25em;
  text-transform: uppercase;
  color: var(--gray-400);
  margin-bottom: 32px;
}

.hero__title {
  font-size: clamp(2.2rem, 5.5vw, 4.2rem);
  font-weight: 600;
  letter-spacing: -0.035em;
  line-height: 1.1;
  color: var(--black);
  max-width: 820px;
}

.hero__subtitle {
  margin-top: 24px;
  font-size: clamp(1rem, 2vw, 1.2rem);
  font-weight: 300;
  color: var(--gray-500);
  max-width: 560px;
  line-height: 1.7;
}

.hero__cta-group {
  margin-top: 48px;
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
  justify-content: center;
}

.hero__scroll {
  position: absolute;
  bottom: 40px;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  color: var(--gray-400);
  font-size: 0.7rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
}

.hero__scroll-line {
  width: 1px;
  height: 40px;
  background: var(--gray-300);
  animation: scrollPulse 2s ease-in-out infinite;
}

@keyframes scrollPulse {
  0%, 100% { opacity: 0.3; transform: scaleY(0.6); }
  50%      { opacity: 1;   transform: scaleY(1);   }
}

/* =============================================
   BUTTONS
============================================= */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-family: inherit;
  font-size: 0.82rem;
  font-weight: 500;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  padding: 16px 40px;
  border: none;
  cursor: pointer;
  transition: all 0.35s ease;
}

.btn--primary {
  background: var(--black);
  color: var(--white);
}

.btn--primary:hover {
  background: #1a1a1a;
  transform: translateY(-1px);
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.12);
}

.btn--outline {
  background: transparent;
  color: var(--black);
  border: 1px solid var(--gray-300);
}

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

.btn--large {
  padding: 20px 52px;
  font-size: 0.85rem;
}

/* =============================================
   SEÇÕES - LAYOUT GERAL
============================================= */
.section {
  padding: var(--section-padding);
}

.section--gray {
  background: var(--gray-100);
}

.section__inner {
  max-width: var(--max-width);
  margin: 0 auto;
}

.section__tag {
  font-size: 0.7rem;
  font-weight: 500;
  letter-spacing: 0.3em;
  text-transform: uppercase;
  color: var(--gray-400);
  margin-bottom: 20px;
}

.section__title {
  font-size: clamp(1.8rem, 4vw, 3rem);
  font-weight: 600;
  letter-spacing: -0.03em;
  line-height: 1.15;
  color: var(--black);
  max-width: 700px;
}

.section__text {
  font-size: clamp(0.95rem, 1.5vw, 1.1rem);
  font-weight: 300;
  color: var(--gray-500);
  line-height: 1.8;
  max-width: 600px;
  margin-top: 20px;
}

.section__divider {
  width: 40px;
  height: 1px;
  background: var(--gray-300);
  border: none;
  margin: 24px 0;
}

/* =============================================
   SEÇÃO PROBLEMA
============================================= */
.problems {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 32px;
  margin-top: 64px;
}

.problem-card {
  padding: 40px;
  border: 1px solid var(--gray-200);
  transition: border-color 0.3s ease;
}

.problem-card:hover {
  border-color: var(--gray-400);
}

.problem-card__number {
  font-size: 0.7rem;
  font-weight: 500;
  letter-spacing: 0.2em;
  color: var(--gray-400);
  margin-bottom: 20px;
}

.problem-card__title {
  font-size: 1.1rem;
  font-weight: 600;
  letter-spacing: -0.01em;
  color: var(--black);
  margin-bottom: 12px;
}

.problem-card__text {
  font-size: 0.9rem;
  font-weight: 300;
  color: var(--gray-500);
  line-height: 1.7;
}

/* =============================================
   SEÇÃO SOLUÇÃO - MANIFESTO
============================================= */
.manifesto {
  text-align: center;
  display: flex;
  flex-direction: column;
  align-items: center;
}

.manifesto__title {
  font-size: clamp(1.8rem, 4vw, 3rem);
  font-weight: 600;
  letter-spacing: -0.03em;
  line-height: 1.2;
  max-width: 780px;
}

.manifesto__text {
  margin-top: 28px;
  font-size: clamp(1rem, 1.5vw, 1.15rem);
  font-weight: 300;
  color: var(--gray-500);
  line-height: 1.8;
  max-width: 620px;
}

.manifesto__cta {
  margin-top: 48px;
}

/* =============================================
   SEÇÃO AUTORIDADE
============================================= */
.authority-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 40px;
  margin-top: 64px;
}

.authority-item__number {
  font-size: 2.4rem;
  font-weight: 600;
  letter-spacing: -0.04em;
  color: var(--black);
  line-height: 1;
}

.authority-item__label {
  margin-top: 12px;
  font-size: 0.95rem;
  font-weight: 400;
  color: var(--gray-500);
  line-height: 1.6;
}

/* =============================================
   SEÇÃO MÉTODO / SERVIÇOS
============================================= */
.services-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 2px;
  margin-top: 64px;
  background: var(--gray-200);
}

.service-card {
  background: var(--white);
  padding: 48px 40px;
  position: relative;
  transition: background 0.3s ease;
}

.service-card:hover {
  background: var(--gray-100);
}

.service-card__step {
  font-size: 0.65rem;
  font-weight: 500;
  letter-spacing: 0.3em;
  text-transform: uppercase;
  color: var(--gray-400);
  margin-bottom: 20px;
}

.service-card__title {
  font-size: 1.3rem;
  font-weight: 600;
  letter-spacing: -0.02em;
  color: var(--black);
  margin-bottom: 8px;
}

.service-card__subtitle {
  font-size: 0.82rem;
  font-weight: 500;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--gray-400);
  margin-bottom: 16px;
}

.service-card__text {
  font-size: 0.9rem;
  font-weight: 300;
  color: var(--gray-500);
  line-height: 1.7;
  max-width: 380px;
}

/* =============================================
   SEÇÃO RESULTADOS / PROVA
============================================= */
.results-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 32px;
  margin-top: 64px;
}

.result-card {
  padding: 40px;
  border: 1px solid var(--gray-200);
}

.result-card__metric {
  font-size: 2rem;
  font-weight: 600;
  letter-spacing: -0.03em;
  color: var(--black);
}

.result-card__label {
  font-size: 0.82rem;
  font-weight: 400;
  color: var(--gray-500);
  margin-top: 6px;
}

.result-card__context {
  font-size: 0.78rem;
  font-weight: 300;
  color: var(--gray-400);
  margin-top: 20px;
  padding-top: 20px;
  border-top: 1px solid var(--gray-200);
  line-height: 1.6;
}

/* Depoimentos */
.testimonials {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 32px;
  margin-top: 64px;
}

.testimonial {
  padding: 40px;
  background: var(--white);
  border: 1px solid var(--gray-200);
}

.testimonial__quote {
  font-size: 1rem;
  font-weight: 300;
  color: var(--gray-600);
  line-height: 1.8;
  font-style: italic;
}

.testimonial__author {
  margin-top: 24px;
  padding-top: 24px;
  border-top: 1px solid var(--gray-200);
}

.testimonial__name {
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--black);
}

.testimonial__role {
  font-size: 0.8rem;
  font-weight: 300;
  color: var(--gray-400);
  margin-top: 4px;
}

/* =============================================
   SEÇÃO CTA FINAL
============================================= */
.final-cta {
  text-align: center;
  display: flex;
  flex-direction: column;
  align-items: center;
}

.final-cta__title {
  font-size: clamp(2rem, 4.5vw, 3.2rem);
  font-weight: 600;
  letter-spacing: -0.03em;
  line-height: 1.15;
  max-width: 700px;
}

.final-cta__text {
  margin-top: 24px;
  font-size: clamp(0.95rem, 1.5vw, 1.1rem);
  font-weight: 300;
  color: var(--gray-500);
  line-height: 1.8;
  max-width: 520px;
}

/* =============================================
   FORMULÁRIO
============================================= */
.form-section {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
}

.form {
  width: 100%;
  max-width: 560px;
  margin-top: 56px;
  text-align: left;
}

.form__group {
  margin-bottom: 24px;
}

.form__label {
  display: block;
  font-size: 0.75rem;
  font-weight: 500;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--gray-500);
  margin-bottom: 10px;
}

.form__input,
.form__select,
.form__textarea {
  width: 100%;
  font-family: inherit;
  font-size: 0.95rem;
  font-weight: 300;
  color: var(--black);
  padding: 14px 0;
  background: transparent;
  border: none;
  border-bottom: 1px solid var(--gray-300);
  outline: none;
  transition: border-color 0.3s ease;
  -webkit-appearance: none;
  appearance: none;
  border-radius: 0;
}

.form__input:focus,
.form__select:focus,
.form__textarea:focus {
  border-color: var(--black);
}

.form__input::placeholder,
.form__textarea::placeholder {
  color: var(--gray-400);
}

/* Input com prefixo fixo (ex: @) */
.form__input-prefix {
  display: flex;
  align-items: center;
  border-bottom: 1px solid var(--gray-300);
  transition: border-color 0.3s ease;
}

.form__input-prefix:focus-within {
  border-color: var(--black);
}

.form__prefix {
  font-family: inherit;
  font-size: 0.95rem;
  font-weight: 400;
  color: var(--gray-400);
  padding: 14px 0;
  user-select: none;
}

.form__input--prefixed {
  border-bottom: none;
  padding-left: 4px;
}

.form__input--prefixed:focus {
  border-color: transparent;
}

/* Mensagem de erro de validação */
.form__error {
  font-size: 0.75rem;
  font-weight: 400;
  color: #c44;
  margin-top: 6px;
  opacity: 0;
  transition: opacity 0.3s ease;
}

.form__error--visible {
  opacity: 1;
}

.form__select {
  cursor: pointer;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 24 24' fill='none' stroke='%23a0a0a0' stroke-width='2'%3E%3Cpolyline points='6 9 12 15 18 9'%3E%3C/polyline%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 0 center;
}

.form__select option {
  font-weight: 300;
}

.form__textarea {
  resize: vertical;
  min-height: 80px;
  line-height: 1.6;
}

.form__submit {
  margin-top: 16px;
  width: 100%;
}

.form__disclaimer {
  margin-top: 20px;
  font-size: 0.75rem;
  font-weight: 300;
  color: var(--gray-400);
  text-align: center;
  line-height: 1.6;
}

/* =============================================
   FORM EXIT — Fade-out + slide up
============================================= */
.form--exit {
  animation: formExit 0.6s cubic-bezier(0.55, 0, 1, 0.45) forwards;
}

@keyframes formExit {
  0%   { opacity: 1; transform: translateY(0); }
  100% { opacity: 0; transform: translateY(-20px); }
}

/* =============================================
   CONFIRMAÇÃO ESTRATÉGICA
============================================= */
.confirmation {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  z-index: 9000;
  background: var(--white);
  display: none;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 40px clamp(20px, 5vw, 80px);
  text-align: center;
  opacity: 0;
}

.confirmation--visible {
  display: flex;
  animation: confirmIn 0.9s cubic-bezier(0.16, 1, 0.3, 1) forwards;
}

@keyframes confirmIn {
  0%   { opacity: 0; }
  100% { opacity: 1; }
}

/* Elementos internos — fade-in escalonado */
.confirmation__icon,
.confirmation__status,
.confirmation__line,
.confirmation__title,
.confirmation__text,
.confirmation__closing,
.confirmation__brand {
  opacity: 0;
  transform: translateY(12px);
}

.confirmation--visible .confirmation__icon    { animation: confirmElIn 0.4s cubic-bezier(0.16, 1, 0.3, 1) 0.05s forwards; }
.confirmation--visible .confirmation__status  { animation: confirmElIn 0.4s cubic-bezier(0.16, 1, 0.3, 1) 0.15s forwards; }
.confirmation--visible .confirmation__line    { animation: confirmElIn 0.3s cubic-bezier(0.16, 1, 0.3, 1) 0.25s forwards; }
.confirmation--visible .confirmation__title   { animation: confirmElIn 0.4s cubic-bezier(0.16, 1, 0.3, 1) 0.35s forwards; }
.confirmation--visible .confirmation__text    { animation: confirmElIn 0.4s cubic-bezier(0.16, 1, 0.3, 1) 0.45s forwards; }
.confirmation--visible .confirmation__closing { animation: confirmElIn 0.4s cubic-bezier(0.16, 1, 0.3, 1) 0.6s forwards; }
.confirmation--visible .confirmation__brand   { animation: confirmElIn 0.4s cubic-bezier(0.16, 1, 0.3, 1) 0.7s forwards; }

@keyframes confirmElIn {
  0%   { opacity: 0; transform: translateY(12px); }
  100% { opacity: 1; transform: translateY(0); }
}

/* Ícone check animado */
.confirmation__icon {
  margin: 0 auto 32px;
  width: 52px;
  height: 52px;
}

.confirmation__check {
  width: 52px;
  height: 52px;
}

.confirmation__circle {
  stroke-dasharray: 151;
  stroke-dashoffset: 151;
  fill: none;
}

.confirmation--visible .confirmation__circle {
  animation: circleIn 0.4s cubic-bezier(0.16, 1, 0.3, 1) 0.1s forwards;
}

@keyframes circleIn {
  0%   { stroke-dashoffset: 151; }
  100% { stroke-dashoffset: 0; }
}

.confirmation__tick {
  stroke-dasharray: 36;
  stroke-dashoffset: 36;
  fill: none;
}

.confirmation--visible .confirmation__tick {
  animation: tickIn 0.3s cubic-bezier(0.16, 1, 0.3, 1) 0.35s forwards;
}

@keyframes tickIn {
  0%   { stroke-dashoffset: 36; }
  100% { stroke-dashoffset: 0; }
}

/* Status label */
.confirmation__status {
  display: inline-block;
  font-size: 0.68rem;
  font-weight: 500;
  letter-spacing: 0.28em;
  text-transform: uppercase;
  color: var(--gray-400);
  margin-bottom: 28px;
}

/* Linha decorativa */
.confirmation__line {
  width: 32px;
  height: 1px;
  background: var(--gray-300);
  border: none;
  margin: 28px auto;
}

/* Headline */
.confirmation__title {
  font-size: clamp(1.6rem, 3.5vw, 2.2rem);
  font-weight: 600;
  letter-spacing: -0.03em;
  line-height: 1.2;
  color: var(--black);
  margin-bottom: 24px;
}

/* Copy */
.confirmation__text {
  font-size: clamp(0.92rem, 1.4vw, 1rem);
  font-weight: 300;
  color: var(--gray-500);
  line-height: 1.8;
  margin-bottom: 8px;
}

/* Encerramento */
.confirmation__closing {
  font-size: 0.88rem;
  font-weight: 400;
  color: var(--gray-600);
  line-height: 1.7;
}

/* Assinatura da marca */
.confirmation__brand {
  display: inline-block;
  margin-top: 40px;
  font-size: 0.7rem;
  font-weight: 500;
  letter-spacing: 0.25em;
  text-transform: uppercase;
  color: var(--gray-400);
}

/* Canvas de confetes */
.confetti-canvas {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: 10000;
  pointer-events: none;
}

/* =============================================
   FOOTER
============================================= */
.footer {
  padding: 48px clamp(20px, 5vw, 80px);
  border-top: 1px solid var(--gray-200);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.footer__text {
  font-size: 0.78rem;
  font-weight: 300;
  color: var(--gray-400);
  letter-spacing: 0.05em;
}

.footer__social {
  color: var(--gray-400);
  transition: color 0.3s ease;
  display: flex;
  align-items: center;
}

.footer__social:hover {
  color: var(--black);
}

/* =============================================
   RESPONSIVO
============================================= */
@media (max-width: 768px) {
  .problems {
    grid-template-columns: 1fr;
  }

  .authority-grid {
    grid-template-columns: 1fr;
    gap: 32px;
  }

  .services-grid {
    grid-template-columns: 1fr;
  }

  .results-grid {
    grid-template-columns: 1fr;
  }

  .testimonials {
    grid-template-columns: 1fr;
  }

  .nav__cta {
    display: none;
  }

  .hero {
    padding-top: 100px;
  }

  .hero__scroll {
    display: none;
  }

  .problem-card,
  .service-card,
  .result-card,
  .testimonial {
    padding: 32px 24px;
  }

  .footer {
    flex-direction: column;
    gap: 16px;
    text-align: center;
  }
}

@media (max-width: 480px) {
  .btn {
    width: 100%;
    text-align: center;
  }

  .hero__cta-group {
    flex-direction: column;
    width: 100%;
    max-width: 320px;
  }
}