:root {
  --color-bg: #0a0a0f;
  --color-bg-elevated: #12121a;
  --color-bg-card: #1a1a25;
  --color-surface: #22222f;
  --color-border: #2a2a3a;
  --color-text: #e4e4ed;
  --color-text-muted: #8888a0;
  --color-text-dim: #5c5c72;
  --color-primary: #E8533F;
  --color-primary-light: #F28B7D;
  --color-primary-glow: rgba(232, 83, 63, 0.15);
  --color-green: #00e676;
  --color-blue: #64b5f6;
  --color-red: #ef5350;
  --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', system-ui, sans-serif;
  --font-mono: 'JetBrains Mono', 'Fira Code', 'Cascadia Code', monospace;
  --radius: 12px;
  --radius-sm: 8px;
  --radius-lg: 20px;
  --shadow: 0 4px 24px rgba(0, 0, 0, 0.3);
  --shadow-lg: 0 12px 48px rgba(0, 0, 0, 0.4);
  --transition: 0.2s ease;
  --container: 1120px;
}

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

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

body {
  font-family: var(--font-sans);
  background: var(--color-bg);
  color: var(--color-text);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

a {
  color: var(--color-primary-light);
  text-decoration: none;
  transition: color var(--transition);
}

a:hover {
  color: var(--color-primary);
}

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

ul {
  list-style: none;
}

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

/* ==================== NAV ==================== */

.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  padding: 16px 0;
  backdrop-filter: blur(20px);
  background: rgba(10, 10, 15, 0.8);
  border-bottom: 1px solid transparent;
  transition: border-color var(--transition), background var(--transition);
}

.nav--scrolled {
  border-bottom-color: var(--color-border);
  background: rgba(10, 10, 15, 0.95);
}

.nav__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.nav__logo {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--color-text);
  display: flex;
  align-items: center;
  gap: 8px;
}

.nav__logo:hover {
  color: var(--color-text);
}

.nav__logo-icon {
  color: var(--color-primary);
  font-size: 1rem;
}

.nav__links {
  display: flex;
  align-items: center;
  gap: 32px;
}

.nav__links a {
  color: var(--color-text-muted);
  font-size: 0.9rem;
  font-weight: 500;
  transition: color var(--transition);
}

.nav__links a:hover {
  color: var(--color-text);
}

.nav__toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px;
}

.nav__toggle span {
  width: 22px;
  height: 2px;
  background: var(--color-text);
  border-radius: 2px;
  transition: transform var(--transition), opacity var(--transition);
}

/* ==================== BUTTONS ==================== */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-sans);
  font-weight: 600;
  font-size: 0.9rem;
  border: none;
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: all var(--transition);
  text-decoration: none;
  white-space: nowrap;
}

.btn--sm {
  padding: 8px 20px;
  font-size: 0.85rem;
}

.btn--lg {
  padding: 14px 32px;
  font-size: 1rem;
}

.btn--primary {
  background: var(--color-primary);
  color: #fff;
  box-shadow: 0 4px 16px rgba(232, 83, 63, 0.3);
}

.btn--primary:hover {
  background: #d44430;
  color: #fff;
  box-shadow: 0 6px 24px rgba(232, 83, 63, 0.4);
  transform: translateY(-1px);
}

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

.btn--outline:hover {
  border-color: var(--color-primary);
  color: var(--color-primary-light);
  background: var(--color-primary-glow);
}

/* ==================== HERO ==================== */

.hero {
  padding: 160px 0 100px;
  position: relative;
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  top: -200px;
  left: 50%;
  transform: translateX(-50%);
  width: 800px;
  height: 800px;
  background: radial-gradient(circle, var(--color-primary-glow) 0%, transparent 70%);
  pointer-events: none;
}

.hero__inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
  align-items: center;
  position: relative;
}

.hero__tag {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--color-primary-light);
  text-transform: uppercase;
  letter-spacing: 1.5px;
  margin-bottom: 16px;
}

.hero__title {
  font-size: 3.2rem;
  font-weight: 800;
  line-height: 1.15;
  margin-bottom: 24px;
  letter-spacing: -0.02em;
}

.hero__highlight {
  background: linear-gradient(135deg, var(--color-primary-light), var(--color-primary));
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}

.hero__subtitle {
  font-size: 1.15rem;
  color: var(--color-text-muted);
  line-height: 1.7;
  margin-bottom: 36px;
  max-width: 520px;
}

.hero__actions {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
}

/* ==================== DEMO CARD ==================== */

.hero__demo-card {
  background: var(--color-bg-elevated);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow-lg);
}

.demo-card__header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 16px 20px;
  background: var(--color-surface);
  border-bottom: 1px solid var(--color-border);
}

.demo-card__store {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--color-text);
}

.demo-card__date {
  font-size: 0.8rem;
  color: var(--color-text-muted);
}

.demo-card__body {
  padding: 24px 20px;
}

.demo-card__row {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  margin-bottom: 4px;
}

.demo-card__label {
  font-size: 0.85rem;
  color: var(--color-text-muted);
}

.demo-card__value {
  font-size: 1.4rem;
  font-weight: 800;
  color: var(--color-text);
}

.demo-card__divider {
  height: 1px;
  background: var(--color-border);
  margin: 18px 0;
}

.demo-card__checks {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.demo-card__check {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 0.88rem;
  color: var(--color-text-muted);
  transition: color 0.5s ease, text-shadow 0.5s ease;
}

.demo-card__check--animated {
  opacity: 0;
  transform: translateY(8px);
}

.demo-card__check--visible {
  animation: checkReveal 0.6s ease forwards;
}

@keyframes checkReveal {
  0% {
    opacity: 0;
    transform: translateY(8px);
  }
  60% {
    opacity: 1;
    transform: translateY(-2px);
  }
  100% {
    opacity: 1;
    transform: translateY(0);
    color: #b0ffda;
    text-shadow: 0 0 12px rgba(0, 230, 118, 0.25);
  }
}

.demo-card__check--visible .demo-card__check-icon {
  animation: iconPulse 0.6s ease forwards;
}

@keyframes iconPulse {
  0% { transform: scale(0.6); opacity: 0; }
  60% { transform: scale(1.2); }
  100% { transform: scale(1); opacity: 1; background: rgba(0, 230, 118, 0.25); box-shadow: 0 0 10px rgba(0, 230, 118, 0.2); }
}

.demo-card__check-icon {
  flex-shrink: 0;
  width: 22px;
  height: 22px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.75rem;
  font-weight: 700;
}

.demo-card__check--pass .demo-card__check-icon {
  background: rgba(0, 230, 118, 0.15);
  color: var(--color-green);
}

.demo-card__check--fail .demo-card__check-icon {
  background: rgba(239, 83, 80, 0.15);
  color: var(--color-red);
}

.demo-card__result {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.demo-card__result-badge {
  font-size: 0.85rem;
  font-weight: 700;
  color: var(--color-green);
  background: rgba(0, 230, 118, 0.1);
  border: 1px solid rgba(0, 230, 118, 0.25);
  padding: 6px 16px;
  border-radius: 20px;
}

.demo-card__coupons {
  display: flex;
  align-items: center;
  gap: 12px;
  text-align: right;
}

.demo-card__coupons-number {
  font-size: 2.2rem;
  font-weight: 800;
  color: var(--color-primary-light);
  line-height: 1;
}

.demo-card__coupons-label {
  font-size: 0.82rem;
  color: var(--color-text-muted);
  line-height: 1.4;
}

.demo-card__coupons-label small {
  color: var(--color-primary-light);
  font-size: 0.75rem;
}

/* ==================== SOCIAL PROOF ==================== */

.social-proof {
  padding: 48px 0;
  border-top: 1px solid var(--color-border);
  border-bottom: 1px solid var(--color-border);
  background: var(--color-bg-elevated);
}

.social-proof__grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 32px;
  text-align: center;
}

.social-proof__number {
  display: block;
  font-size: 2rem;
  font-weight: 800;
  color: var(--color-text);
  letter-spacing: -0.02em;
}

.social-proof__label {
  display: block;
  font-size: 0.85rem;
  color: var(--color-text-muted);
  margin-top: 4px;
}

/* ==================== SECTIONS ==================== */

.section {
  padding: 100px 0;
}

.section--dark {
  background: var(--color-bg-elevated);
}

.section--cta {
  background: linear-gradient(135deg, var(--color-primary-glow), rgba(232, 83, 63, 0.05));
  border-top: 1px solid var(--color-border);
}

.section__header {
  text-align: center;
  max-width: 640px;
  margin: 0 auto 64px;
}

.section__tag {
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--color-primary-light);
  text-transform: uppercase;
  letter-spacing: 1.5px;
  margin-bottom: 12px;
}

.section__title {
  font-size: 2.4rem;
  font-weight: 800;
  line-height: 1.2;
  margin-bottom: 16px;
  letter-spacing: -0.02em;
}

.section__subtitle {
  font-size: 1.1rem;
  color: var(--color-text-muted);
  line-height: 1.7;
}

/* ==================== PROBLEM CARDS ==================== */

.problems__grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
}

.problem-card {
  padding: 32px;
  background: var(--color-bg-elevated);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  transition: border-color var(--transition);
}

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

.problem-card__icon {
  font-size: 1.5rem;
  margin-bottom: 16px;
}

.problem-card__title {
  font-size: 1.1rem;
  font-weight: 700;
  margin-bottom: 8px;
}

.problem-card__text {
  font-size: 0.95rem;
  color: var(--color-text-muted);
  line-height: 1.6;
}

/* ==================== FEATURE CARDS ==================== */

.features__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.feature-card {
  padding: 32px;
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  transition: border-color var(--transition), transform var(--transition);
}

.feature-card:hover {
  border-color: var(--color-primary);
  transform: translateY(-2px);
}

.feature-card__icon {
  font-size: 1.5rem;
  margin-bottom: 16px;
}

.feature-card__title {
  font-size: 1.05rem;
  font-weight: 700;
  margin-bottom: 8px;
}

.feature-card__text {
  font-size: 0.9rem;
  color: var(--color-text-muted);
  line-height: 1.6;
}

/* ==================== STEPS ==================== */

.steps {
  max-width: 640px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 40px;
}

.step {
  display: flex;
  gap: 24px;
  align-items: flex-start;
}

.step__number {
  flex-shrink: 0;
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: var(--color-primary-glow);
  border: 2px solid var(--color-primary);
  color: var(--color-primary-light);
  font-size: 1.2rem;
  font-weight: 700;
  display: flex;
  align-items: center;
  justify-content: center;
}

.step__title {
  font-size: 1.15rem;
  font-weight: 700;
  margin-bottom: 6px;
}

.step__text {
  font-size: 0.95rem;
  color: var(--color-text-muted);
  line-height: 1.6;
}

/* ==================== BEFORE/AFTER COMPARE ==================== */

.compare {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
  max-width: 860px;
  margin: 0 auto;
}

.compare__col {
  padding: 32px;
  border-radius: var(--radius);
  border: 1px solid var(--color-border);
}

.compare__col--before {
  background: rgba(239, 83, 80, 0.04);
  border-color: rgba(239, 83, 80, 0.15);
}

.compare__col--after {
  background: rgba(0, 230, 118, 0.04);
  border-color: rgba(0, 230, 118, 0.15);
}

.compare__heading {
  font-size: 1.05rem;
  font-weight: 700;
  margin-bottom: 20px;
}

.compare__col--before .compare__heading {
  color: var(--color-red);
}

.compare__col--after .compare__heading {
  color: var(--color-green);
}

.compare__list {
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.compare__item {
  font-size: 0.9rem;
  color: var(--color-text-muted);
  padding-left: 28px;
  position: relative;
  line-height: 1.5;
}

.compare__item::before {
  position: absolute;
  left: 0;
  top: 1px;
  font-size: 0.85rem;
}

.compare__item--bad::before {
  content: '✕';
  color: var(--color-red);
}

.compare__item--good::before {
  content: '✓';
  color: var(--color-green);
}

/* ==================== ROTATING TEXT ==================== */

.rotating-text {
  display: inline-block;
  position: relative;
  min-width: 180px;
  text-align: left;
}

.rotating-text__item {
  display: inline-block;
  position: absolute;
  left: 0;
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.5s ease, transform 0.5s ease;
  background: linear-gradient(135deg, var(--color-primary-light), var(--color-primary));
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  white-space: nowrap;
}

.rotating-text__item--active {
  position: relative;
  opacity: 1;
  transform: translateY(0);
}

.rotating-text__item--exit {
  opacity: 0;
  transform: translateY(-20px);
}

/* ==================== USE CASES ==================== */

.usecases__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.usecase-card {
  padding: 32px;
  background: var(--color-bg-elevated);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  transition: border-color var(--transition);
}

.usecase-card:hover {
  border-color: var(--color-primary);
}

.usecase-card__icon {
  font-size: 2rem;
  margin-bottom: 12px;
}

.usecase-card__title {
  font-size: 1.1rem;
  font-weight: 700;
  margin-bottom: 10px;
}

.usecase-card__text {
  font-size: 0.9rem;
  color: var(--color-text-muted);
  line-height: 1.6;
}

/* ==================== CTA ==================== */

.cta__inner {
  text-align: center;
  max-width: 560px;
  margin: 0 auto;
}

.cta__title {
  font-size: 2rem;
  font-weight: 800;
  margin-bottom: 16px;
  letter-spacing: -0.02em;
}

.cta__text {
  font-size: 1.05rem;
  color: var(--color-text-muted);
  margin-bottom: 32px;
  line-height: 1.7;
}

/* ==================== FOOTER ==================== */

.footer {
  padding: 64px 0 32px;
  border-top: 1px solid var(--color-border);
}

.footer__inner {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 48px;
  margin-bottom: 48px;
}

.footer__desc {
  font-size: 0.9rem;
  color: var(--color-text-muted);
  margin-top: 12px;
  line-height: 1.6;
  max-width: 300px;
}

.footer__links h4 {
  font-size: 0.85rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 1px;
  color: var(--color-text-dim);
  margin-bottom: 16px;
}

.footer__links ul {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.footer__links a {
  font-size: 0.9rem;
  color: var(--color-text-muted);
}

.footer__links a:hover {
  color: var(--color-text);
}

.footer__company {
  margin-top: 16px;
  padding-top: 16px;
  border-top: 1px solid var(--color-border);
}

.footer__company-name {
  font-size: 0.82rem;
  font-weight: 600;
  color: var(--color-text-dim);
  letter-spacing: 0.5px;
}

.footer__company-cnpj {
  font-size: 0.78rem;
  color: var(--color-text-dim);
  margin-top: 2px;
}

.footer__company a {
  font-size: 0.82rem;
  color: var(--color-text-muted);
}

.footer__trust {
  display: flex;
  justify-content: center;
  gap: 24px;
  flex-wrap: wrap;
  margin-bottom: 24px;
}

.footer__trust-badge {
  font-size: 0.78rem;
  color: var(--color-text-dim);
  padding: 6px 14px;
  background: var(--color-bg-elevated);
  border: 1px solid var(--color-border);
  border-radius: 20px;
}

.footer__copy {
  font-size: 0.8rem;
  color: var(--color-text-dim);
  text-align: center;
  padding-top: 32px;
  border-top: 1px solid var(--color-border);
}

/* ==================== CONTACT POPUP ==================== */

.contact-overlay {
  position: fixed;
  inset: 0;
  z-index: 200;
  background: rgba(0, 0, 0, 0.5);
  backdrop-filter: blur(8px);
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.3s ease;
}

.contact-overlay--open {
  opacity: 1;
  pointer-events: auto;
}

.contact-popup {
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 40px 48px;
  text-align: center;
  position: relative;
  transform: scale(0.85) translateY(30px);
  opacity: 0;
  transition: transform 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275), opacity 0.3s ease;
  box-shadow: 0 24px 80px rgba(0, 0, 0, 0.5), 0 0 0 1px rgba(255, 255, 255, 0.05) inset;
  max-width: 380px;
  width: 90%;
}

.contact-overlay--open .contact-popup {
  transform: scale(1) translateY(0);
  opacity: 1;
}

.contact-popup__close {
  position: absolute;
  top: 14px;
  right: 18px;
  background: none;
  border: none;
  color: var(--color-text-dim);
  font-size: 1.6rem;
  cursor: pointer;
  line-height: 1;
  transition: color var(--transition);
}

.contact-popup__close:hover {
  color: var(--color-text);
}

.contact-popup__title {
  font-size: 1.3rem;
  font-weight: 700;
  margin-bottom: 4px;
  color: var(--color-text);
}

.contact-popup__subtitle {
  font-size: 0.88rem;
  color: var(--color-text-muted);
  margin-bottom: 32px;
}

.contact-popup__buttons {
  display: flex;
  justify-content: center;
  gap: 32px;
}

.contact-popup__btn {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 10px;
  background: none;
  border: none;
  cursor: pointer;
  text-decoration: none;
  transition: transform 0.2s ease;
}

.contact-popup__btn:hover {
  transform: scale(1.08);
}

.contact-popup__btn:active {
  transform: scale(0.95);
}

.contact-popup__btn-icon {
  width: 64px;
  height: 64px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: box-shadow 0.2s ease;
}

.contact-popup__btn--whatsapp .contact-popup__btn-icon {
  background: #25D366;
  color: #fff;
  box-shadow: 0 4px 20px rgba(37, 211, 102, 0.3);
}

.contact-popup__btn--whatsapp:hover .contact-popup__btn-icon {
  box-shadow: 0 6px 28px rgba(37, 211, 102, 0.45);
}

.contact-popup__btn--email .contact-popup__btn-icon {
  background: var(--color-primary);
  color: #fff;
  box-shadow: 0 4px 20px rgba(232, 83, 63, 0.3);
}

.contact-popup__btn--email:hover .contact-popup__btn-icon {
  box-shadow: 0 6px 28px rgba(232, 83, 63, 0.45);
}

.contact-popup__btn-label {
  font-size: 0.82rem;
  font-weight: 600;
  color: var(--color-text-muted);
}

.contact-popup__copied {
  font-size: 0.8rem;
  color: var(--color-green);
  margin-top: 20px;
  opacity: 0;
  transform: translateY(4px);
  transition: opacity 0.3s ease, transform 0.3s ease;
}

.contact-popup__copied--show {
  opacity: 1;
  transform: translateY(0);
}

/* ==================== RESPONSIVE ==================== */

@media (max-width: 1024px) {
  .hero__inner {
    grid-template-columns: 1fr;
    gap: 48px;
  }

  .hero__title {
    font-size: 2.6rem;
  }

  .features__grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 768px) {
  .nav__toggle {
    display: flex;
  }

  .nav__links {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: var(--color-bg-elevated);
    border-bottom: 1px solid var(--color-border);
    flex-direction: column;
    padding: 24px;
    gap: 20px;
  }

  .nav__links--open {
    display: flex;
  }

  .hero {
    padding: 120px 0 60px;
  }

  .hero__title {
    font-size: 2rem;
  }

  .hero__subtitle {
    font-size: 1rem;
  }

  .section {
    padding: 64px 0;
  }

  .section__title {
    font-size: 1.8rem;
  }

  .social-proof__grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 24px;
  }

  .problems__grid,
  .features__grid,
  .usecases__grid {
    grid-template-columns: 1fr;
  }

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

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

@media (max-width: 480px) {
  .hero__title {
    font-size: 1.7rem;
  }

  .hero__actions {
    flex-direction: column;
  }

  .social-proof__grid {
    grid-template-columns: 1fr 1fr;
  }

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

  .cta__title {
    font-size: 1.5rem;
  }
}