/* ============================================================
   LexOS Landing Page — Villalta Solutions
   Focus: operational pain, not features
   Palette: Forest + Terra + Cream + Charcoal
   Typography: Montserrat + Open Sans + Playfair Display
   ============================================================ */

/* ------------------------------------------
   Design tokens
   ------------------------------------------ */
:root {
  --lx-bg: #FAF8F3;
  --lx-bg-warm: #F7F2E9;
  --lx-surface: #FFFFFF;
  --lx-forest: #2D5016;
  --lx-forest-light: #4A7A2A;
  --lx-forest-dark: #1F380F;
  --lx-terra: #C4A77D;
  --lx-terra-light: #D9C4A3;
  --lx-terra-dark: #9A8259;
  --lx-charcoal: #2C2C2C;
  --lx-charcoal-soft: #4A4A4A;
  --lx-text-muted: rgba(44, 44, 44, 0.55);
  --lx-border: rgba(44, 44, 44, 0.07);
  --lx-border-strong: rgba(44, 44, 44, 0.13);
  --lx-radius: 16px;
  --lx-radius-lg: 24px;
  --lx-font-display: 'Playfair Display', Georgia, serif;
  --lx-font-heading: 'Montserrat', -apple-system, sans-serif;
  --lx-font-body: 'Open Sans', -apple-system, sans-serif;

  /* Espaçamento complementar */
  --space-1: 0.25rem;
  --space-2: 0.5rem;
  --space-3: 0.75rem;
  --space-4: 1rem;
  --space-5: 1.5rem;
  --space-6: 2rem;
  --space-8: 3rem;
  --space-10: 4rem;
  --space-12: 6rem;
  --space-16: 8rem;
  --space-20: 12rem;
}

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

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

body {
  font-family: var(--lx-font-body);
  color: var(--lx-charcoal);
  background: var(--lx-bg);
  line-height: 1.7;
}

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

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

/* ------------------------------------------
   Container
   ------------------------------------------ */
.lx-wrap {
  max-width: 1120px;
  margin: 0 auto;
  padding: 0 24px;
  position: relative;
  z-index: 1;
}

@media (max-width: 768px) {
  .lx-wrap { padding: 0 16px; }
}

/* ------------------------------------------
   NAV
   ------------------------------------------ */
.lx-nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 300;
  padding: 12px 20px;
  background: transparent;
  border-bottom: none;
  transition: all 0.25s ease;
  opacity: 0;
  transform: translateY(-10px);
}

.lx-nav.nav-visible {
  opacity: 1;
  transform: translateY(0);
  background: rgba(250, 248, 243, 0.92);
  backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--lx-border);
}

.lx-nav-container {
  max-width: 1200px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}

.lx-nav-logo {
  display: flex;
  align-items: center;
  gap: 12px;
  text-decoration: none;
}

.lx-nav-logo img {
  height: 24px;
  width: auto;
}

.lx-nav-sep {
  width: 1px;
  height: 16px;
  background: var(--lx-border-strong);
}

.lx-nav-product {
  font-family: var(--lx-font-heading);
  font-weight: 700;
  font-size: 14px;
  color: var(--lx-forest);
  letter-spacing: 0.04em;
}

.lx-nav-links {
  display: flex;
  align-items: center;
  gap: 28px;
}

.lx-nav-links a {
  font-family: var(--lx-font-body);
  font-size: 14px;
  font-weight: 500;
  color: var(--lx-text-muted);
  transition: color 0.15s ease;
}

.lx-nav-links a:hover {
  color: var(--lx-forest);
}

.lx-nav-cta {
  background: var(--lx-forest);
  color: var(--lx-bg) !important;
  padding: 8px 20px;
  border-radius: 999px;
  font-weight: 600 !important;
  transition: all 0.2s ease;
}

.lx-nav-cta:hover {
  background: var(--lx-forest-dark);
}

@media (max-width: 768px) {
  .lx-nav-links { display: none; }
  .lx-nav-sep { display: none; }
}

/* ------------------------------------------
   HERO
   ------------------------------------------ */
.lx-hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  overflow: hidden;
  background: var(--lx-bg);
  padding: 120px 0 80px;
}

.lx-hero-bg {
  position: absolute;
  inset: 0;
  pointer-events: none;
  z-index: 0;
}

.lx-orb {
  position: absolute;
  border-radius: 50%;
  filter: blur(100px);
}

.lx-orb-1 {
  width: 600px;
  height: 600px;
  background: var(--lx-terra);
  opacity: 0.18;
  top: -250px;
  right: -150px;
}

.lx-orb-2 {
  width: 400px;
  height: 400px;
  background: var(--lx-forest);
  opacity: 0.10;
  bottom: 5%;
  left: -120px;
}

.lx-orb-3 {
  width: 280px;
  height: 280px;
  background: var(--lx-terra-light);
  opacity: 0.22;
  top: 35%;
  left: 25%;
}

.lx-hero-content {
  text-align: center;
  max-width: 720px;
  margin: 0 auto;
}

/* Badge */
.lx-badge-row {
  display: flex;
  justify-content: center;
  margin-bottom: 24px;
}

.lx-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 4px 6px 4px 8px;
  border-radius: 999px;
  border: 1px solid var(--lx-border-strong);
  background: var(--lx-surface);
  font-family: var(--lx-font-heading);
  font-size: 11px;
  font-weight: 600;
  color: var(--lx-charcoal-soft);
  letter-spacing: 0.04em;
}

.lx-badge-dot {
  display: block;
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--lx-forest);
  animation: lx-pulse 2.2s ease-in-out infinite;
}

@keyframes lx-pulse {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.35; transform: scale(1.4); }
}

/* H1 */
.lx-h1 {
  font-family: var(--lx-font-heading);
  font-size: clamp(2.2rem, 6vw, 4rem);
  font-weight: 700;
  line-height: 1.08;
  color: var(--lx-charcoal);
  text-align: center;
  max-width: 800px;
  margin: 0 auto 24px;
  letter-spacing: -0.03em;
}

.lx-h1 em {
  font-family: var(--lx-font-display);
  font-weight: 400;
  font-style: italic;
  color: var(--lx-forest);
}

/* Lead */
.lx-lead {
  font-family: var(--lx-font-body);
  font-size: clamp(1rem, 2vw, 1.25rem);
  color: var(--lx-text-muted);
  text-align: center;
  max-width: 560px;
  margin: 0 auto 40px;
  line-height: 1.75;
}

/* Buttons */
.lx-actions {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 12px;
  margin-bottom: 48px;
}

.lx-btn-primary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 14px 32px;
  border-radius: 999px;
  background: var(--lx-forest);
  color: var(--lx-bg);
  font-family: var(--lx-font-heading);
  font-size: 14px;
  font-weight: 600;
  text-decoration: none;
  transition: all 0.25s ease;
  border: none;
  cursor: pointer;
}

.lx-btn-primary:hover {
  background: var(--lx-forest-dark);
  transform: translateY(-2px);
  box-shadow: 0 6px 24px rgba(45, 80, 22, 0.2);
}

.lx-btn-primary svg {
  transition: transform 0.15s ease;
}

.lx-btn-primary:hover svg {
  transform: translateX(4px);
}

.lx-btn-ghost {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 10px 16px;
  color: var(--lx-terra-dark);
  font-family: var(--lx-font-heading);
  font-size: 14px;
  font-weight: 600;
  text-decoration: none;
  transition: color 0.15s ease;
  background: transparent;
  border: none;
  cursor: pointer;
}

.lx-btn-ghost:hover { color: var(--lx-forest); }
.lx-btn-ghost svg { transition: transform 0.15s ease; }
.lx-btn-ghost:hover svg { transform: translateY(3px); }

.lx-btn-big {
  padding: 16px 36px;
  font-size: 16px;
}

@media (min-width: 600px) {
  .lx-actions { flex-direction: row; justify-content: center; }
}

/* Proof bar */
.lx-proof {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  align-items: center;
  gap: 4px 12px;
  padding-top: 32px;
  border-top: 1px solid var(--lx-border);
  max-width: 480px;
  margin: 0 auto;
}

.lx-proof .proof-item {
  font-family: var(--lx-font-body);
  font-size: 11px;
  color: var(--lx-text-muted);
  text-align: center;
}

.lx-proof .proof-separator {
  width: 3px;
  height: 3px;
  border-radius: 50%;
  background: var(--lx-terra-light);
  display: inline-block;
}

/* ------------------------------------------
   SECTIONS (shared)
   ------------------------------------------ */
.lx-section {
  padding: var(--space-16) var(--space-6);
}

.lx-section-header {
  max-width: 640px;
  margin-bottom: var(--space-10);
}

.lx-section-header--centered {
  text-align: center;
  margin-left: auto;
  margin-right: auto;
}

.lx-eyebrow {
  display: block;
  font-family: var(--lx-font-heading);
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--lx-terra-dark);
  margin-bottom: var(--space-4);
}

.lx-section-title {
  font-family: var(--lx-font-heading);
  font-size: clamp(1.8rem, 4vw, 2.8rem);
  font-weight: 700;
  line-height: 1.15;
  color: var(--lx-charcoal);
  letter-spacing: -0.02em;
}

.lx-section-title em {
  font-family: var(--lx-font-display);
  font-weight: 400;
  font-style: italic;
  color: var(--lx-forest);
}

.lx-section-lead {
  font-family: var(--lx-font-body);
  font-size: clamp(1rem, 1.5vw, 1.125rem);
  color: var(--lx-text-muted);
  line-height: 1.7;
  margin-top: var(--space-4);
}

@media (max-width: 768px) {
  :root {
    --space-16: 5rem;
    --space-20: 8rem;
  }
  .lx-section { padding: var(--space-12) var(--space-4); }
}

/* ------------------------------------------
   PROBLEM / STAKES
   ------------------------------------------ */
.lx-section-problem {
  background: linear-gradient(180deg, transparent 0%, rgba(212, 117, 78, 0.04) 100%);
}

.lx-stakes-comparison {
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  gap: var(--space-6);
  max-width: 1000px;
  margin: 0 auto var(--space-8);
  align-items: start;
}

.lx-stakes-card {
  background: var(--lx-surface);
  border: 2px solid var(--lx-border);
  border-radius: var(--lx-radius-lg);
  padding: var(--space-8);
  transition: all 0.25s ease;
}

.lx-stakes-card:hover {
  box-shadow: 0 12px 40px rgba(44, 44, 44, 0.08);
}

.lx-stakes-now {
  border-color: rgba(212, 117, 78, 0.25);
}

.lx-stakes-future {
  border-color: var(--lx-forest);
}

.lx-stakes-subtitle {
  font-family: var(--lx-font-heading);
  font-size: clamp(1.25rem, 2.5vw, 1.5rem);
  font-weight: 700;
  margin-bottom: var(--space-5);
  text-align: center;
}

.lx-stakes-now .lx-stakes-subtitle {
  color: #D4754E;
}

.lx-stakes-future .lx-stakes-subtitle {
  color: var(--lx-forest);
}

.lx-stakes-list {
  list-style: none;
  padding: 0;
  margin: 0 0 var(--space-6);
}

.lx-stakes-list li {
  position: relative;
  padding-left: var(--space-6);
  margin-bottom: var(--space-3);
  font-family: var(--lx-font-body);
  font-size: 15px;
  color: var(--lx-text-muted);
  line-height: 1.6;
}

.lx-stakes-list li::before {
  content: '✕';
  position: absolute;
  left: 0;
  color: #D4754E;
  font-weight: 700;
}

.lx-stakes-list--positive li::before {
  content: '✓';
  color: var(--lx-forest);
}

.lx-stakes-cost {
  background: rgba(212, 117, 78, 0.08);
  border-radius: var(--lx-radius);
  padding: var(--space-4);
  text-align: center;
}

.lx-stakes-cost--positive {
  background: rgba(45, 80, 22, 0.08);
}

.lx-stakes-label {
  display: block;
  font-family: var(--lx-font-heading);
  font-size: 11px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--lx-text-muted);
  margin-bottom: var(--space-1);
}

.lx-stakes-amount {
  display: block;
  font-family: var(--lx-font-heading);
  font-size: clamp(1.25rem, 2.5vw, 1.5rem);
  font-weight: 700;
  color: #D4754E;
  margin-bottom: var(--space-1);
}

.lx-stakes-cost--positive .lx-stakes-amount {
  color: var(--lx-forest);
}

.lx-stakes-note {
  display: block;
  font-size: 13px;
  color: var(--lx-text-muted);
}

.lx-stakes-connector {
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--lx-font-display);
  font-size: clamp(1.25rem, 2.5vw, 1.5rem);
  font-style: italic;
  color: var(--lx-terra);
  padding: var(--space-4);
}

.lx-stakes-urgency {
  max-width: 700px;
  margin: 0 auto;
  text-align: center;
}

.lx-stakes-urgency-text {
  font-family: var(--lx-font-body);
  font-size: clamp(1rem, 1.5vw, 1.125rem);
  line-height: 1.7;
  color: var(--lx-charcoal);
}

.lx-stakes-urgency-text strong {
  color: #D4754E;
}

@media (max-width: 768px) {
  .lx-stakes-comparison {
    grid-template-columns: 1fr;
  }
  .lx-stakes-connector {
    display: none;
  }
}

/* ------------------------------------------
   FLOW: WhatsApp → Processo → Cobrança
   ------------------------------------------ */
.lx-section-flow {
  background: linear-gradient(180deg, rgba(245, 241, 232, 0.5) 0%, transparent 100%);
}

.lx-flow {
  display: flex;
  align-items: stretch;
  justify-content: center;
  gap: var(--space-4);
  max-width: 1000px;
  margin: 0 auto;
}

.lx-flow-step {
  flex: 1;
  background: var(--lx-surface);
  border: 1px solid var(--lx-border);
  border-radius: var(--lx-radius-lg);
  padding: var(--space-8);
  text-align: center;
  transition: all 0.25s ease;
}

.lx-flow-step:hover {
  border-color: var(--lx-border-strong);
  box-shadow: 0 12px 40px rgba(44, 44, 44, 0.08);
}

.lx-flow-icon {
  width: 56px;
  height: 56px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--lx-bg-warm);
  border-radius: var(--lx-radius);
  margin: 0 auto var(--space-5);
  color: var(--lx-forest);
}

.lx-flow-number {
  display: block;
  font-family: var(--lx-font-display);
  font-size: clamp(2rem, 4vw, 3rem);
  font-weight: 400;
  color: var(--lx-terra);
  opacity: 0.5;
  line-height: 1;
  margin-bottom: var(--space-3);
}

.lx-flow-title {
  font-family: var(--lx-font-heading);
  font-size: clamp(1rem, 1.5vw, 1.25rem);
  font-weight: 600;
  color: var(--lx-charcoal);
  margin-bottom: var(--space-3);
}

.lx-flow-desc {
  font-family: var(--lx-font-body);
  font-size: 14px;
  color: var(--lx-text-muted);
  line-height: 1.7;
}

.lx-flow-arrow {
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--lx-terra-light);
  flex-shrink: 0;
  align-self: center;
}

@media (max-width: 768px) {
  .lx-flow {
    flex-direction: column;
  }
  .lx-flow-arrow {
    transform: rotate(90deg);
    padding: var(--space-2) 0;
  }
  .lx-flow-step {
    padding: var(--space-6);
  }
}

/* ------------------------------------------
   RESULT / BENEFITS
   ------------------------------------------ */
.lx-section-result {
  background: var(--lx-bg);
}

.lx-result-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-5);
  max-width: 900px;
  margin: 0 auto;
}

.lx-result-card {
  background: var(--lx-surface);
  border: 1px solid var(--lx-border);
  border-radius: var(--lx-radius-lg);
  padding: var(--space-8);
  transition: all 0.25s ease;
}

.lx-result-card:hover {
  border-color: var(--lx-border-strong);
  box-shadow: 0 12px 40px rgba(44, 44, 44, 0.08);
}

.lx-result-icon {
  width: 56px;
  height: 56px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--lx-bg-warm);
  border-radius: var(--lx-radius);
  margin-bottom: var(--space-5);
  color: var(--lx-forest);
}

.lx-result-title {
  font-family: var(--lx-font-heading);
  font-size: clamp(1.1rem, 1.8vw, 1.35rem);
  font-weight: 600;
  color: var(--lx-charcoal);
  margin-bottom: var(--space-3);
}

.lx-result-desc {
  font-family: var(--lx-font-body);
  font-size: 15px;
  color: var(--lx-text-muted);
  line-height: 1.7;
}

@media (max-width: 768px) {
  .lx-result-grid {
    grid-template-columns: 1fr;
  }
  .lx-result-card {
    padding: var(--space-6);
  }
}

/* ------------------------------------------
   DEMO CTA
   ------------------------------------------ */
.lx-section-demo {
  background: linear-gradient(180deg, transparent 0%, rgba(45, 80, 22, 0.04) 100%);
  text-align: center;
  padding: var(--space-20) var(--space-6);
}

.lx-demo-content {
  max-width: 640px;
  margin: 0 auto;
}

.lx-demo-title {
  font-family: var(--lx-font-heading);
  font-size: clamp(2rem, 5vw, 3rem);
  font-weight: 700;
  color: var(--lx-charcoal);
  line-height: 1.1;
  margin-bottom: var(--space-5);
  letter-spacing: -0.02em;
}

.lx-demo-title em {
  font-family: var(--lx-font-display);
  font-weight: 400;
  font-style: italic;
  color: var(--lx-forest);
}

.lx-demo-lead {
  font-family: var(--lx-font-body);
  font-size: clamp(1rem, 1.5vw, 1.125rem);
  color: var(--lx-text-muted);
  line-height: 1.8;
  margin-bottom: var(--space-8);
}

.lx-demo-actions {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: var(--space-4);
  margin-bottom: var(--space-10);
}

.lx-demo-proof {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: var(--space-8);
  padding-top: var(--space-8);
  border-top: 1px solid var(--lx-border);
}

.lx-demo-proof-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-1);
}

.lx-demo-proof-item strong {
  font-family: var(--lx-font-heading);
  font-size: var(--space-5);
  font-weight: 700;
  color: var(--lx-forest);
  line-height: 1;
}

.lx-demo-proof-item span {
  font-size: 13px;
  color: var(--lx-text-muted);
}

@media (max-width: 768px) {
  .lx-demo-actions {
    flex-direction: column;
    align-items: center;
  }
  .lx-demo-proof {
    flex-direction: column;
    gap: var(--space-5);
  }
}

/* ------------------------------------------
   FOOTER
   ------------------------------------------ */
.lx-footer {
  background: var(--lx-bg);
  border-top: 1px solid var(--lx-border);
  padding: var(--space-8) var(--space-6);
}

.lx-footer-inner {
  max-width: 1120px;
  margin: 0 auto;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: var(--space-6);
}

.lx-footer-brand img {
  height: 24px;
  margin-bottom: var(--space-2);
}

.lx-footer-brand p {
  font-family: var(--lx-font-body);
  font-size: 14px;
  color: var(--lx-text-muted);
}

.lx-footer-meta {
  text-align: right;
}

.lx-footer-meta p {
  font-family: var(--lx-font-body);
  font-size: 12px;
  color: var(--lx-text-muted);
  margin: 0;
}

.lx-footer-tagline {
  color: var(--lx-terra-dark) !important;
  font-style: italic;
  font-family: var(--lx-font-display) !important;
  margin-top: var(--space-1) !important;
}

@media (max-width: 768px) {
  .lx-footer-inner {
    flex-direction: column;
    text-align: center;
  }
  .lx-footer-meta { text-align: center; }
}

/* ------------------------------------------
   REVEAL ANIMATIONS
   ------------------------------------------ */
.reveal-on {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.5s ease, transform 0.5s ease;
}

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

.lx-stakes-card:nth-child(1) { transition-delay: 0ms; }
.lx-stakes-card:nth-child(3) { transition-delay: 120ms; }

.lx-flow-step:nth-child(1) { transition-delay: 0ms; }
.lx-flow-step:nth-child(3) { transition-delay: 120ms; }
.lx-flow-step:nth-child(5) { transition-delay: 240ms; }

.lx-result-card:nth-child(1) { transition-delay: 0ms; }
.lx-result-card:nth-child(2) { transition-delay: 100ms; }
.lx-result-card:nth-child(3) { transition-delay: 200ms; }
.lx-result-card:nth-child(4) { transition-delay: 300ms; }

/* ------------------------------------------
   Accessibility
   ------------------------------------------ */
a:focus-visible,
button:focus-visible {
  outline: 2px solid var(--lx-forest);
  outline-offset: 4px;
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
  .reveal-on {
    opacity: 1;
    transform: none;
  }
  .lx-nav {
    opacity: 1;
    transform: none;
  }
}