/* ============================================
   Prognosis Landing Page — TEMA ESCURO
   Conteúdo do index.html, identidade visual do index_novo
   ============================================ */

:root {
  --bg: #0A0A0B;
  --bg-alt: #111113;
  --surface: #16161A;
  --border: #27272A;
  --text: #E4E4E7;
  --text-dim: #A1A1AA;
  --text-muted: #71717A;
  --accent: #3B82F6;
  --accent-hover: #60A5FA;
  --accent-deep: #1E40AF;
  --accent-bg: rgba(59, 130, 246, 0.08);
  --font: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --mono: 'JetBrains Mono', ui-monospace, SFMono-Regular, Menlo, monospace;
  --container-max: 1120px;
  --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

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

html {
  scroll-behavior: smooth;
  scroll-padding-top: 80px;
  -webkit-font-smoothing: antialiased;
}

body {
  font-family: var(--font);
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
  font-size: 16px;
  overflow-x: hidden;
}

a { color: inherit; }
img, svg { max-width: 100%; display: block; }

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

/* ---- Header ---- */
.header {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  background: rgba(10, 10, 11, 0.85);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 32px;
  height: 64px;
}

.logo {
  display: flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
  line-height: 1;
}

.logo-icon { width: 36px; height: 28px; }

.logo-text {
  font-size: 1.2rem;
  font-weight: 700;
  color: var(--text);
  letter-spacing: -0.02em;
}

.nav {
  display: flex;
  gap: 32px;
}

.nav-link {
  color: var(--text-dim);
  text-decoration: none;
  font-size: 0.9rem;
  transition: color 0.2s;
}

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

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

.menu-toggle span {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--text);
  transition: var(--transition);
}

.menu-toggle.active span:nth-child(1) { transform: rotate(45deg) translate(5px, 5px); }
.menu-toggle.active span:nth-child(2) { opacity: 0; }
.menu-toggle.active span:nth-child(3) { transform: rotate(-45deg) translate(5px, -5px); }

/* ---- Buttons ---- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  font-family: var(--mono);
  font-weight: 500;
  letter-spacing: 0.02em;
  text-transform: uppercase;
  text-decoration: none;
  border-radius: 0;
  transition: background 0.2s, color 0.2s, border-color 0.2s, transform 0.1s;
  cursor: pointer;
  border: none;
  white-space: nowrap;
}

.btn:hover { transform: translateY(-1px); }

.btn-sm { padding: 8px 20px; font-size: 0.78rem; }
.btn-lg { padding: 14px 32px; font-size: 0.85rem; }

.btn-primary {
  background: var(--accent);
  color: var(--bg);
}

.btn-primary:hover { background: var(--accent-hover); }

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

.btn-outline:hover {
  background: var(--text);
  color: var(--bg);
  border-color: var(--text);
}

/* ---- Hero ---- */
.hero {
  position: relative;
  padding: 160px 0 100px;
  overflow: hidden;
  background: var(--bg);
}

.hero-bg {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
  opacity: 0.9;
}

.hero-content {
  position: relative;
  z-index: 2;
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 420px);
  gap: 48px;
  align-items: center;
}

.hero-text {
  max-width: 640px;
  text-align: left;
}

/* ---- Hero 3D (torus knot) ---- */
.hero-visual {
  justify-self: end;
  width: 100%;
  max-width: 420px;
}

.knot-3d-container {
  position: relative;
  width: 100%;
  aspect-ratio: 1;
  cursor: grab;
  touch-action: pan-y;
}

.knot-3d-container:active { cursor: grabbing; }

#knot-canvas {
  display: block;
  width: 100%;
  height: 100%;
}

.hero-badge {
  display: block;
  font-family: var(--mono);
  font-size: 0.8rem;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--accent);
  margin-bottom: 20px;
}

.hero-title {
  font-size: clamp(2.2rem, 5.5vw, 3.8rem);
  font-weight: 700;
  line-height: 1.1;
  letter-spacing: -0.03em;
  margin-bottom: 24px;
  color: var(--text);
}

.title-accent {
  font-style: normal;
  color: var(--accent);
}

.hero-subtitle {
  font-size: 1.1rem;
  color: var(--text-dim);
  max-width: 560px;
  margin: 0 0 40px;
  line-height: 1.7;
}

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

/* ---- Sections ---- */
.section {
  padding: 100px 0;
  position: relative;
  border-top: 1px solid var(--border);
}

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

.section-header {
  text-align: left;
  margin-bottom: 56px;
}

.section-label {
  display: block;
  font-family: var(--mono);
  font-size: 0.8rem;
  font-weight: 500;
  color: var(--accent);
  text-transform: uppercase;
  letter-spacing: 0.12em;
  margin-bottom: 12px;
}

.section-title {
  font-size: clamp(1.8rem, 4vw, 2.6rem);
  font-weight: 700;
  line-height: 1.15;
  letter-spacing: -0.02em;
  margin-bottom: 20px;
}

.section-desc {
  font-size: 1.05rem;
  color: var(--text-dim);
  max-width: 680px;
  margin: 0;
  line-height: 1.7;
}

.section-desc strong { color: var(--text); }
.section-desc a { color: var(--accent); text-decoration: none; }
.section-desc a:hover { text-decoration: underline; }

/* ---- Cards (base compartilhada) ---- */
.comparison-card,
.solution-card,
.stat-card {
  background: var(--surface);
  border: none;
  border-left: 3px solid transparent;
  border-radius: 0;
  transition: border-color 0.3s ease, background 0.3s ease;
}

.comparison-card:hover,
.solution-card:hover,
.stat-card:hover {
  border-left-color: var(--accent);
  background: #19191E;
}

/* ---- Comparison ---- */
.comparison-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 2px;
  max-width: 960px;
}

.comparison-card { padding: 40px 36px; }

.comparison-icon {
  width: 48px;
  height: 48px;
  margin-bottom: 20px;
}

.comparison-card h3 {
  font-family: var(--mono);
  font-size: 0.95rem;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  margin-bottom: 20px;
}

.comparison-old h3 { color: var(--text-muted); }
.comparison-new h3 { color: var(--accent); }

.comparison-card ul {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.comparison-card li {
  font-size: 0.92rem;
  color: var(--text-dim);
  padding-left: 24px;
  position: relative;
  line-height: 1.55;
}

.comparison-old li::before {
  content: '\2715';
  position: absolute;
  left: 0;
  color: #F87171;
  font-size: 0.75rem;
  top: 2px;
}

.comparison-new li::before {
  content: '\2713';
  position: absolute;
  left: 0;
  color: #4ADE80;
  font-weight: 700;
  font-size: 0.85rem;
  top: 1px;
}

/* ---- Solutions ---- */
.solutions-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 2px;
}

.solution-card { padding: 40px 36px; }

.solution-icon {
  width: 48px;
  height: 48px;
  margin-bottom: 20px;
}

.solution-card h3 {
  font-family: var(--mono);
  font-size: 0.95rem;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  margin-bottom: 12px;
}

.solution-card p {
  font-size: 0.95rem;
  color: var(--text-dim);
  line-height: 1.65;
}

.solution-card p em {
  font-style: normal;
  color: var(--text);
}

/* ---- Process Timeline ---- */
.process-timeline {
  max-width: 760px;
  position: relative;
}

.process-timeline::before {
  content: '';
  position: absolute;
  left: 20px;
  top: 0;
  bottom: 0;
  width: 1px;
  background: var(--border);
}

.process-step {
  display: flex;
  gap: 32px;
  align-items: flex-start;
  padding: 24px 0;
  position: relative;
}

.step-number {
  flex-shrink: 0;
  width: 40px;
  height: 40px;
  background: var(--bg);
  border: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--mono);
  font-size: 0.78rem;
  font-weight: 500;
  color: var(--accent);
  position: relative;
  z-index: 1;
  transition: border-color 0.2s;
}

.process-step:hover .step-number { border-color: var(--accent); }

.step-content h3 {
  font-size: 1.1rem;
  font-weight: 600;
  margin-bottom: 8px;
  padding-top: 8px;
}

.step-content p {
  font-size: 0.95rem;
  color: var(--text-dim);
  line-height: 1.65;
}

/* ---- Onde Aplicamos ---- */
.stats-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2px;
}

.stat-card {
  text-align: left;
  padding: 40px 36px;
}

.area-card {
  display: flex;
  flex-direction: column;
}

.area-eyebrow {
  font-family: var(--mono);
  font-size: 0.7rem;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--text-muted);
  margin-bottom: 10px;
}

.area-card h3 {
  font-size: 1.15rem;
  font-weight: 600;
  color: var(--text);
  letter-spacing: -0.01em;
  margin-bottom: 18px;
}

.area-card ul {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 12px;
  flex: 1;
  margin-bottom: 24px;
}

.area-card li {
  font-size: 0.92rem;
  color: var(--text-dim);
  line-height: 1.55;
  padding-left: 20px;
  position: relative;
}

.area-card li::before {
  content: '\203A';
  position: absolute;
  left: 2px;
  top: -1px;
  color: var(--accent);
  font-weight: 700;
}

.area-card li strong { color: var(--text); }

.area-link {
  font-family: var(--mono);
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--accent);
  text-decoration: none;
  transition: color 0.2s;
}

.area-link:hover {
  color: var(--accent-hover);
  text-decoration: underline;
}

.areas-more {
  font-size: 0.88rem;
  color: var(--text-muted);
  margin-top: 32px;
}

/* ---- CTA Section ---- */
.section-cta {
  background: var(--bg-alt);
  text-align: center;
}

.cta-content {
  max-width: 720px;
  margin: 0 auto;
}

.cta-content .section-desc { margin: 0 auto; }

.cta-actions { margin-top: 40px; }

.section-header.cta-actions { margin-bottom: 0; }

/* ---- Footer ---- */
.footer {
  background: var(--bg);
  border-top: 1px solid var(--border);
  padding: 48px 0;
}

.footer-inner {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 24px;
}

.footer-brand {
  display: flex;
  flex-direction: column;
  align-items: center;
}

.footer-tagline {
  font-family: var(--mono);
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--text-dim);
  margin-top: 12px;
}

.footer-links {
  display: flex;
  gap: 32px;
}

.footer-links a {
  color: var(--text-dim);
  text-decoration: none;
  font-size: 0.875rem;
  transition: color 0.2s;
}

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

.footer-bottom {
  border-top: 1px solid var(--border);
  padding-top: 24px;
  width: 100%;
  text-align: center;
}

.footer-bottom p {
  font-size: 0.8rem;
  color: var(--text-muted);
}

.footer-email {
  font-family: var(--mono);
  color: var(--text-dim);
  text-decoration: none;
}

.footer-email:hover { color: var(--accent); }

.footer-bottom p + p { margin-top: 6px; }

/* ---- Scroll Animations ---- */
.animate-target {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.5s ease, transform 0.5s ease;
}

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

@media (prefers-reduced-motion: reduce) {
  .animate-target { opacity: 1; transform: none; transition: none; }
  html { scroll-behavior: auto; }
}

/* ---- Responsive ---- */
@media (max-width: 900px) {
  .section { padding: 72px 0; }
  .hero { padding: 130px 0 72px; }
  .hero-content { grid-template-columns: 1fr; gap: 24px; }
  .hero-visual { justify-self: start; max-width: 300px; }
  .comparison-grid,
  .solutions-grid,
  .stats-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 768px) {
  .nav {
    position: fixed;
    top: 0;
    right: -100%;
    width: 280px;
    height: 100vh;
    background: var(--bg-alt);
    flex-direction: column;
    padding: 80px 32px 32px;
    gap: 24px;
    transition: right var(--transition);
    border-left: 1px solid var(--border);
    z-index: 99;
  }

  .nav-open { right: 0; }

  .nav-link { font-size: 1.1rem; }

  .header-inner .btn { display: none; }

  .menu-toggle {
    display: flex;
    z-index: 101;
  }

  .hero-title { font-size: clamp(2rem, 8vw, 2.8rem); }

  .hero-ctas { flex-direction: column; align-items: flex-start; }
  .hero-ctas .btn { width: 100%; }

  .process-timeline::before { left: 19px; }

  .footer-links {
    flex-wrap: wrap;
    justify-content: center;
    gap: 20px;
  }
}

@media (max-width: 480px) {
  .container { padding: 0 16px; }

  .comparison-card,
  .solution-card,
  .stat-card {
    padding: 28px 22px;
  }
}