:root {
  --brand-dark: #1a2b3c;
  --brand-blue: #2c3e50;
  --bg-light: #f8fafc;
  --bg-alt: #f1f5f9;
  --border-color: #d1d5db;
  --text-main: #1e293b;
  --text-muted: #64748b;
  --accent-red: #b91c1c;
  --accent-green: #15803d;
  --accent-orange: #d97706;
  --white: #ffffff;
}

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

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  background-color: var(--bg-light);
  color: var(--text-main);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 2rem;
}

.site-header {
  background: var(--white);
  border-bottom: 1px solid var(--border-color);
  padding: 1rem 0;
  position: sticky;
  top: 0;
  z-index: 100;
}

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

.brand {
  font-weight: 800;
  font-size: 1.125rem;
  letter-spacing: -0.02em;
  display: flex;
  gap: 0.75rem;
  align-items: center;
  flex-shrink: 0;
}

.logo-cbpq {
  color: var(--brand-dark);
}

.logo-separator {
  color: var(--border-color);
  font-weight: 300;
}

.logo-pepa {
  color: var(--brand-blue);
  font-weight: 400;
}

.mobile-toggle {
  display: none;
  background: none;
  border: 1px solid var(--border-color);
  font-size: 1.25rem;
  padding: 0.4rem 0.7rem;
  cursor: pointer;
  color: var(--text-main);
}

.main-nav ul {
  display: flex;
  align-items: center;
  list-style: none;
  gap: 1.5rem;
}

.main-nav a {
  text-decoration: none;
  color: var(--text-muted);
  font-size: 0.8125rem;
  font-weight: 500;
  transition: color 0.2s;
  white-space: nowrap;
}

.main-nav a:hover {
  color: var(--brand-dark);
}

.nav-login-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.65rem 1rem;
  border: 1px solid var(--border-color);
  border-radius: 999px;
  background: var(--white);
  color: var(--brand-dark);
  font-size: 0.8125rem;
  font-weight: 600;
  line-height: 1;
  cursor: pointer;
  transition: 0.2s ease;
}

.nav-login-btn:hover {
  background: var(--bg-alt);
  border-color: #b8c0cc;
}

.btn {
  display: inline-block;
  padding: 0.7rem 1.4rem;
  font-weight: 600;
  font-size: 0.8125rem;
  text-decoration: none;
  border: 1px solid transparent;
  cursor: pointer;
  transition: opacity 0.2s;
}

.btn:hover {
  opacity: 0.85;
}

.btn-primary {
  background: var(--brand-dark);
  color: var(--white);
}

.btn-secondary {
  background: transparent;
  border-color: var(--border-color);
  color: var(--brand-dark);
  margin-left: 0.75rem;
}

.btn-outline {
  border: 1px solid var(--border-color);
  background: transparent;
  padding: 0.35rem 0.75rem;
  font-size: 0.75rem;
  cursor: pointer;
  font-weight: 600;
  color: var(--text-main);
}

.btn-text {
  background: none;
  border: none;
  color: var(--brand-blue);
  font-weight: 600;
  cursor: pointer;
  padding: 0.35rem 0;
  font-size: 0.8125rem;
}

.btn-text:hover,
.btn-outline:hover {
  opacity: 0.7;
}

.card {
  background: var(--white);
  border: 1px solid var(--border-color);
  padding: 2rem;
}

.section-padding {
  padding: 4.5rem 0;
}

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

.section-title {
  margin-bottom: 2rem;
  font-size: 1.375rem;
  font-weight: 700;
  color: var(--brand-dark);
}

.site-footer {
  border-top: 1px solid var(--border-color);
  padding: 2.5rem 0;
  font-size: 0.75rem;
  color: var(--text-muted);
}

.footer-content {
  display: flex;
  justify-content: space-between;
}

.login-feedback:empty {
  display: none;
}

@media (max-width: 768px) {
  .mobile-toggle {
    display: block;
  }

  .main-nav {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: var(--white);
    border-bottom: 1px solid var(--border-color);
    padding: 1rem 2rem;
  }

  .main-nav.open {
    display: block;
  }

  .main-nav ul {
    flex-direction: column;
    align-items: flex-start;
    gap: 0.75rem;
  }

  .footer-content {
    flex-direction: column;
    gap: 0.5rem;
  }
}