:root {
  --color-dark: #0b0f19;
  --color-darker: #05070d;
  --color-blue: #1a73e8;
  --color-blue-bright: #0b57d0;
  --color-yellow: #fbbc04;
  --color-red: #ea4335;
  --color-green: #34a853;
  --color-light: #f8fafc;
  --color-gray: #64748b;
  --color-border: #e2e8f0;
  --font-title: 'Poppins', sans-serif;
  --font-body: 'Inter', sans-serif;
  --max-width: 1140px;
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-body);
  color: var(--color-dark);
  line-height: 1.6;
  background: var(--color-light);
}

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

h1, h2, h3 {
  font-family: var(--font-title);
  line-height: 1.2;
}

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

ul {
  list-style: none;
}

/* Header */
.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  background: rgba(11, 15, 25, 0.95);
  backdrop-filter: blur(8px);
  z-index: 1000;
  border-bottom: 3px solid var(--color-blue);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
}

.logo {
  font-family: var(--font-title);
  font-weight: 800;
  font-size: 22px;
  color: #fff;
}

.logo .dot {
  color: var(--color-yellow);
}

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

.nav a {
  color: #cbd5e1;
  font-weight: 500;
  font-size: 15px;
  transition: color 0.2s;
}

.nav a:hover {
  color: var(--color-blue);
}

.nav-cta {
  background: var(--color-blue);
  color: #fff !important;
  padding: 8px 18px;
  border-radius: 999px;
  font-weight: 600 !important;
}

.nav-cta:hover {
  background: var(--color-blue-bright);
}

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

.menu-toggle span {
  width: 24px;
  height: 2px;
  background: #fff;
  display: block;
}

/* Hero */
.hero {
  padding: 160px 0 100px;
  background: linear-gradient(135deg, var(--color-blue) 0%, var(--color-blue-bright) 55%, var(--color-dark) 100%);
  color: #fff;
  position: relative;
  overflow: hidden;
}

.hero::before {
  content: "";
  position: absolute;
  top: -80px;
  right: -80px;
  width: 260px;
  height: 260px;
  background: var(--color-yellow);
  clip-path: polygon(50% 0%, 100% 100%, 0% 100%);
  opacity: 0.15;
}

.hero::after {
  content: "";
  position: absolute;
  bottom: -100px;
  left: -60px;
  width: 220px;
  height: 220px;
  background: var(--color-red);
  border-radius: 50%;
  opacity: 0.12;
}

.hero-inner {
  display: grid;
  grid-template-columns: 1.2fr 1fr;
  gap: 48px;
  align-items: center;
  position: relative;
  z-index: 1;
}

.eyebrow {
  color: var(--color-yellow);
  font-weight: 600;
  font-size: 14px;
  letter-spacing: 1px;
  text-transform: uppercase;
  margin-bottom: 16px;
}

.hero h1 {
  font-size: 44px;
  font-weight: 800;
  margin-bottom: 20px;
}

.hero-sub {
  color: #e2e8f0;
  font-size: 17px;
  margin-bottom: 32px;
  max-width: 520px;
}

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

.btn {
  display: inline-block;
  padding: 14px 28px;
  border-radius: 999px;
  font-weight: 600;
  font-size: 15px;
  transition: all 0.2s;
  cursor: pointer;
  border: none;
}

.btn-primary {
  background: var(--color-yellow);
  color: var(--color-darker);
}

.btn-primary:hover {
  filter: brightness(1.08);
}

.btn-secondary {
  background: transparent;
  color: #fff;
  border: 1px solid rgba(255,255,255,0.4);
}

.btn-secondary:hover {
  border-color: #fff;
  background: rgba(255,255,255,0.08);
}

/* Imagem do Hero - tamanho travado no container */
.hero-image {
  width: 320px;
  height: 320px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  border-radius: 24px;
  border: 4px solid rgba(255,255,255,0.25);
  box-shadow: 0 20px 40px rgba(0,0,0,0.3);
}

.hero-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: top center;
  display: block;
}

/* Sections */
.section {
  padding: 96px 0;
}

.section-alt {
  background: #fff;
}

.section-title {
  font-size: 32px;
  font-weight: 700;
  margin-bottom: 20px;
  color: var(--color-dark);
}

.section-text {
  color: var(--color-gray);
  font-size: 16px;
  max-width: 680px;
  margin-bottom: 16px;
}

.center {
  text-align: center;
  margin-left: auto;
  margin-right: auto;
}

.light {
  color: #fff !important;
}

/* Stats */
.stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  margin-top: 56px;
}

.stat-card {
  text-align: center;
  padding: 32px 16px;
  background: #fff;
  border: 1px solid var(--color-border);
  border-top: 4px solid var(--color-blue);
  border-radius: 16px;
}

.stat-card:nth-child(2) {
  border-top-color: var(--color-yellow);
}

.stat-card:nth-child(3) {
  border-top-color: var(--color-red);
}

.stat-number {
  display: block;
  font-family: var(--font-title);
  font-size: 28px;
  font-weight: 800;
  color: var(--color-dark);
  margin-bottom: 8px;
}

.stat-label {
  color: var(--color-gray);
  font-size: 14px;
}

/* Cards */
.cards-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  margin-top: 48px;
}

.card {
  background: var(--color-light);
  border: 1px solid var(--color-border);
  border-radius: 16px;
  padding: 28px;
  border-left: 4px solid var(--color-blue);
  transition: transform 0.2s, box-shadow 0.2s;
}

.card:nth-child(4n+2) {
  border-left-color: var(--color-yellow);
}

.card:nth-child(4n+3) {
  border-left-color: var(--color-red);
}

.card:nth-child(4n+4) {
  border-left-color: var(--color-green);
}

.card:hover {
  transform: translateY(-4px);
  box-shadow: 0 12px 24px rgba(0,0,0,0.06);
}

.card h3 {
  font-size: 18px;
  margin-bottom: 10px;
  color: var(--color-dark);
}

.card p {
  color: var(--color-gray);
  font-size: 14px;
}

/* Palestra */
.palestra-inner {
  display: grid;
  grid-template-columns: 1.3fr 1fr;
  gap: 48px;
  align-items: start;
}

.palestra-box {
  background: var(--color-dark);
  color: #fff;
  border-radius: 20px;
  padding: 36px;
  border-top: 4px solid var(--color-blue);
}

.palestra-box h3 {
  color: var(--color-yellow);
  margin-bottom: 20px;
  font-size: 18px;
}

.palestra-box li {
  padding: 8px 0;
  border-bottom: 1px solid rgba(255,255,255,0.1);
  font-size: 15px;
  color: #e2e8f0;
}

.palestra-box li:last-child {
  border-bottom: none;
}

/* CTA / Contato */
.section-cta {
  background: linear-gradient(135deg, var(--color-darker) 0%, var(--color-blue-bright) 100%);
  color: #fff;
}

.contact-links {
  display: flex;
  gap: 16px;
  justify-content: center;
  flex-wrap: wrap;
  margin-top: 32px;
}

.btn-light {
  background: var(--color-yellow);
  color: var(--color-darker);
}

.btn-light:hover {
  filter: brightness(1.08);
}

.btn-outline-light {
  border: 1px solid rgba(255,255,255,0.4);
  color: #fff;
}

.btn-outline-light:hover {
  border-color: #fff;
  background: rgba(255,255,255,0.08);
}

/* Footer */
.footer {
  background: var(--color-darker);
  color: #64748b;
  text-align: center;
  padding: 24px 0;
  font-size: 14px;
  border-top: 3px solid var(--color-blue);
}

/* Responsive */
@media (max-width: 860px) {
  .hero-inner,
  .palestra-inner {
    grid-template-columns: 1fr;
  }
  .hero-image {
    order: -1;
  }
  .stats,
  .cards-grid {
    grid-template-columns: 1fr 1fr;
  }
}

@media (max-width: 640px) {
  .nav {
    position: fixed;
    top: 72px;
    left: 0;
    right: 0;
    background: var(--color-dark);
    flex-direction: column;
    padding: 24px;
    gap: 20px;
    transform: translateY(-150%);
    transition: transform 0.3s;
  }
  .nav.open {
    transform: translateY(0);
  }
  .menu-toggle {
    display: flex;
  }
  .hero h1 {
    font-size: 32px;
  }
  .stats,
  .cards-grid {
    grid-template-columns: 1fr 1fr;
  }
}