/* ============================================
   🔹 RESET & CONFIGURAÇÕES GLOBAIS
============================================ */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

:root {
  --primary-color: #4f8cff;
  --secondary-color: #764ba2;
  --accent-color: #00c9a7;
  --text-dark: #222b45;
  --text-light: #718096;
  --bg-light: #f7fafc;
  --white: #ffffff;
  --shadow: 0 10px 30px rgba(0, 0, 0, 0.10);
  --shadow-lg: 0 20px 60px rgba(0, 0, 0, 0.15);
  --focus-outline: 2px solid #00c9a7;
}

body {
  font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
  line-height: 1.6;
  color: var(--text-dark);
  background: linear-gradient(120deg, #f7fafc 60%, #e3e9ff 100%);
  overflow-x: hidden;
  transition: background 0.4s;
}

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 20px;
}

/* ============================================
   🔹 MENU SANDUÍCHE / MOBILE
============================================ */
.menu-toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: 8px;
  margin-right: 16px;
  z-index: 1100;
  transition: background 0.2s;
}

.menu-toggle:focus {
  outline: var(--focus-outline);
  background: rgba(76,140,255,0.08);
}

.menu-icon {
  display: block;
  width: 28px;
  height: 4px;
  background: var(--white);
  position: relative;
  border-radius: 2px;
  transition: background 0.3s;
}

.menu-toggle.open .menu-icon {
  background: transparent;
}

.menu-icon::before,
.menu-icon::after {
  content: '';
  display: block;
  width: 28px;
  height: 4px;
  background: var(--white);
  position: absolute;
  border-radius: 2px;
  transition: 0.3s;
}

.menu-icon::before {
  top: -10px;
}

.menu-icon::after {
  top: 10px;
}

.menu-toggle.open .menu-icon::before {
  top: 0;
  transform: rotate(45deg);
}

.menu-toggle.open .menu-icon::after {
  top: 0;
  transform: rotate(-45deg);
}

/* MENU MOBILE */
@media (max-width: 900px) {
  .menu-toggle { display: block; }

  .menu {
    flex-direction: column;
    gap: 10px;
    width: 100vw;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    position: fixed;
    top: 64px;
    left: 0;
    text-align: center;
    z-index: 1000;
    box-shadow: var(--shadow);
    transform: translateY(-30px) scaleY(0.8);
    opacity: 0;
    pointer-events: none;
    border-radius: 0 0 16px 16px;
    transition: all 0.35s cubic-bezier(.77,0,.18,1);
  }

  .menu.open {
    transform: translateY(0) scaleY(1);
    opacity: 1;
    pointer-events: auto;
  }

  .menu a {
    padding: 16px 0;
    font-size: 18px;
  }

  .btn-login {
    width: 100%;
    margin-top: 8px;
  }
}

/* ============================================
   🔹 HEADER / NAVEGAÇÃO
============================================ */
.header {
  background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
  padding: 0;
  position: sticky;
  top: 0;
  width: 100vw;
  z-index: 1000;
  box-shadow: var(--shadow);
}

.header-inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 20px 0;
}

.logo {
  font-size: 28px;
  font-weight: bold;
  color: var(--white);
  margin-left: 32px;
}

.menu {
  display: flex;
  gap: 30px;
  margin-right: 32px;
}

.menu a {
  color: var(--white);
  text-decoration: none;
  padding: 8px 16px;
  border-radius: 5px;
  font-weight: 500;
  transition: 0.3s;
}

.menu a:hover {
  background: rgba(255,255,255,0.18);
  color: var(--accent-color);
  text-decoration: underline;
}

.btn-login {
  background: var(--accent-color) !important;
  color: var(--white) !important;
  padding: 10px 25px !important;
  border-radius: 25px !important;
  font-weight: 600 !important;
  transition: 0.3s;
}

.btn-login:hover {
  transform: translateY(-2px) scale(1.04);
}

/* MOBILE HEADER */
@media (max-width: 900px) {
  .header-inner {
    flex-direction: column;
    padding: 12px 0;
  }

  .logo { margin: 0 0 8px 0; text-align: center; }
  .menu { flex-direction: column; width: 100%; }
}

/* ============================================
   🔹 BANNER
============================================ */
.banner-content {
  display: flex;
  align-items: center;
  gap: 40px;
  flex-wrap: wrap;
  min-height: 380px;
  animation: fadeIn 1.2s;
}

.banner-text {
  flex: 1 1 340px;
  min-width: 280px;
  padding: 32px 0 32px 0;
}

.banner-text h1 {
  font-size: 48px;
  font-weight: 800;
  margin-bottom: 18px;
  color: var(--primary-color);
  line-height: 1.15;
  letter-spacing: -1px;
  text-shadow: 0 2px 12px rgba(76,140,255,0.08);
}

.banner-desc {
  font-size: 20px;
  margin-bottom: 32px;
  color: var(--text-dark);
  line-height: 1.5;
}

.highlight {
  background: linear-gradient(90deg, #4f8cff 40%, #00c9a7 100%);
  color: #fff;
  border-radius: 6px;
  padding: 2px 8px;
  font-weight: 700;
  box-shadow: 0 2px 8px rgba(76,140,255,0.10);
}

.banner-buttons {
  display: flex;
  gap: 20px;
  flex-wrap: wrap;
}

.btn-main,
.btn-secondary {
  padding: 15px 35px;
  border-radius: 30px;
  font-weight: 600;
  font-size: 18px;
  box-shadow: 0 2px 8px rgba(0,201,167,0.08);
}

.btn-main {
  background: var(--accent-color);
  color: var(--white);
  border: none;
}

.btn-secondary {
  background: transparent;
  color: var(--primary-color);
  border: 2px solid var(--accent-color);
}

.btn-main:hover,
.btn-secondary:hover {
  filter: brightness(1.08);
  box-shadow: 0 4px 16px rgba(0,201,167,0.18);
}

.banner-image {
  flex: 1 1 320px;
  min-width: 220px;
  display: flex;
  justify-content: center;
  align-items: center;
  padding: 24px 0;
}

.banner-placeholder {
  border-radius: 20px;
  overflow: hidden;
  box-shadow: 0 4px 32px rgba(76,140,255,0.10);
}

/* ============================================
   🔹 SOBRE
============================================ */
.sobre {
  padding: 80px 20px;
  background: var(--bg-light);
  text-align: center;
}

.stats {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 40px;
}

.stat-item {
  background: var(--white);
  padding: 30px;
  border-radius: 15px;
  box-shadow: var(--shadow);
  transition: 0.3s;
}

.stat-item:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-lg);
}

/* ============================================
   🔹 CURSOS
============================================ */
.cursos {
  padding: 80px 20px;
  background: var(--white);
}

.cursos-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 30px;
}

.curso-card {
  background: var(--white);
  padding: 40px 30px;
  border-radius: 15px;
  box-shadow: var(--shadow);
  transition: 0.3s;
}

.curso-card:hover {
  transform: translateY(-10px);
  box-shadow: var(--shadow-lg);
}

/* ============================================
   🔹 DIFERENCIAIS
============================================ */
.diferenciais {
  padding: 80px 20px;
  background: var(--bg-light);
}

.diferenciais-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 30px;
}

/* ============================================
   🔹 CONTATO
============================================ */
.contato {
  padding: 80px 20px;
  background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
  color: var(--white);
  text-align: center;
}

.contato-info {
  display: flex;
  justify-content: center;
  gap: 40px;
  flex-wrap: wrap;
}

.contato-info a {
  color: #fff200;
  font-weight: 600;
  text-decoration: none;
  transition: color 0.2s, text-shadow 0.2s;
}

.contato-info a:hover {
  color: #00c9a7;
  text-shadow: 0 2px 8px rgba(0,201,167,0.18);
}

/* ============================================
   🔹 FOOTER – MELHORADO
============================================ */
.footer {
  background: linear-gradient(135deg, var(--secondary-color), var(--primary-color));
  color: var(--white);
  padding: 60px 20px 20px;
  box-shadow: 0 0 40px rgba(76,140,255,0.15);
}

.footer-content {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 40px;
  max-width: 1200px;
  margin: 0 auto 40px;
}

.footer-info h3 {
  margin-bottom: 15px;
  font-size: 24px;
  color: #fff200;
  font-weight: 700;
}

.footer-info p {
  color: rgba(255,255,255,0.75);
  line-height: 1.6;
}

.footer-links h4,
.footer-social h4 {
  margin-bottom: 15px;
  font-size: 18px;
  color: #fff200;
}

.footer-links a {
  display: block;
  color: var(--white);
  text-decoration: none;
  margin-bottom: 10px;
  font-weight: 500;
  transition: 0.25s ease;
}

.footer-links a:hover {
  color: #00c9a7;
  padding-left: 6px;
}

.social-icons {
  display: flex;
  gap: 15px;
}

.social-icons a {
  font-size: 30px;
  text-decoration: none;
  color: #fff200;
  transition: transform 0.3s, color 0.25s;
}

.social-icons a:hover {
  color: #00c9a7;
  transform: scale(1.2) rotate(-6deg);
}

.footer-bottom {
  text-align: center;
  padding-top: 30px;
  border-top: 1px solid rgba(255,255,255,0.2);
  color: rgba(255,255,255,0.65);
  font-size: 14px;
}

/* ============================================
   🔹 LINKS GLOBAIS
============================================ */
a {
  color: var(--primary-color);
  text-decoration: none;
  transition: color 0.2s, text-shadow 0.2s;
}

a:hover {
  color: var(--secondary-color);
  text-shadow: 0 2px 8px rgba(76,140,255,0.18);
}

/* ============================================
   🔹 RESPONSIVIDADE
============================================ */
@media (max-width: 900px) {
  .banner-content {
    flex-direction: column;
    gap: 16px;
    min-height: 0;
  }
  .banner-text h1 {
    font-size: 32px;
  }
  .banner-desc {
    font-size: 16px;
  }
  .banner-image {
    padding: 0;
  }
}

@media (max-width: 768px) {
  .banner-content,
  .cursos-grid,
  .diferenciais-grid,
  .stats,
  .footer-content {
    grid-template-columns: 1fr;
  }
  .banner-text h1 {
    font-size: 24px;
  }
}

@media (max-width: 480px) {
  .banner-text h1 {
    font-size: 18px;
  }
  .banner-desc {
    font-size: 14px;
  }
  .banner-buttons {
    flex-direction: column;
    gap: 10px;
  }
  .btn-main,
  .btn-secondary {
    width: 100%;
    font-size: 16px;
  }
}

/* ============================================
   🔹 ANIMAÇÕES
============================================ */
@keyframes fadeIn {
  from { opacity: 0; transform: translateY(20px); }
  to { opacity: 1; transform: translateY(0); }
}