/* Custom CSS properties */
:root {
  --primary-red: #D32F2F;   /* Primary Color */
  --primary-blue: #1976D2;  /* Secondary/Accent */
  --bg-white: #FFFFFF;
  --bg-light: #F8F9FA;
  --text-black: #1A1A1A;
  --text-light: #5F6368;
  
  --font-main: 'Inter', system-ui, -apple-system, sans-serif;
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-main);
  background-color: var(--bg-white);
  color: var(--text-black);
  line-height: 1.6;
  display: flex;
  flex-direction: column;
  min-height: 100vh;
}

main {
  flex: 1;
}

/* Typography */
h1, h2, h3, h4 { margin-bottom: 1rem; font-weight: 700; color: var(--primary-blue); }
p { margin-bottom: 1rem; color: var(--text-light); }
a { text-decoration: none; color: var(--primary-blue); transition: color 0.3s ease; }
a:hover { color: var(--primary-red); }

/* Layout & Containers */
.container {
  width: 90%;
  max-width: 1100px;
  margin: 0 auto;
  padding: 4rem 0;
}

/* Navbar injected via JS */
header {
  background-color: var(--bg-white);
  box-shadow: 0 4px 20px rgba(0,0,0,0.06);
  position: sticky;
  top: 0;
  z-index: 1000;
}

.navbar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 1.25rem 5%;
  max-width: 1200px;
  margin: 0 auto;
}

.nav-brand {
  font-size: 1.5rem;
  font-weight: 800;
  color: var(--primary-red);
  letter-spacing: -0.5px;
}

.nav-links {
  display: flex;
  gap: 2.5rem;
  list-style: none;
}

.nav-links a {
  font-weight: 600;
  color: var(--text-black);
  position: relative;
}

.nav-links a::after {
  content: '';
  position: absolute;
  width: 0; 
  height: 2px;
  display: block;
  background: var(--primary-red);
  transition: width 0.3s ease-in-out;
  bottom: -4px;
}

.nav-links a:hover::after {
  width: 100%;
}

.nav-links a.active {
  color: var(--primary-red);
}

.nav-links a.active::after {
  width: 100%;
}

/* Buttons */
.btn {
  display: inline-block;
  padding: 0.8rem 2rem;
  background-color: var(--primary-red);
  color: var(--bg-white);
  font-weight: 600;
  border-radius: 6px;
  border: 2px solid var(--primary-red);
  transition: all 0.3s ease;
  cursor: pointer;
  box-shadow: 0 4px 6px rgba(211, 47, 47, 0.2);
}

.btn:hover {
  background-color: transparent;
  color: var(--primary-red);
  box-shadow: none;
}

.btn-blue {
  background-color: var(--primary-blue);
  border-color: var(--primary-blue);
  box-shadow: 0 4px 6px rgba(25, 118, 210, 0.2);
}
.btn-blue:hover {
  background-color: transparent;
  color: var(--primary-blue);
  box-shadow: none;
}

/* Cards */
.card {
  background: var(--bg-white);
  border-radius: 12px;
  padding: 2.5rem;
  box-shadow: 0 10px 40px rgba(0,0,0,0.06);
  transition: transform 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275), box-shadow 0.4s ease;
  border-top: 4px solid var(--primary-blue);
  position: relative;
  overflow: hidden;
}

.card::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0; bottom: 0;
  background: linear-gradient(135deg, rgba(25, 118, 210, 0.05), transparent);
  opacity: 0;
  transition: opacity 0.4s ease;
}

.card:hover {
  transform: translateY(-8px);
  box-shadow: 0 20px 50px rgba(0,0,0,0.12);
}

.card:hover::before {
  opacity: 1;
}

.card h3 {
  font-size: 1.4rem;
  margin-bottom: 1rem;
  position: relative;
}

.card p {
  position: relative;
  z-index: 1;
}

/* Footer injected via JS */
footer {
  background-color: var(--text-black);
  color: var(--bg-white);
  padding: 4rem 5% 2rem;
  text-align: center;
  margin-top: auto;
}

footer h3 {
  color: var(--bg-white);
}

footer p {
  color: #A0A0A0;
}

footer a {
  color: var(--primary-red);
}

.footer-content {
  max-width: 600px;
  margin: 0 auto;
}

/* Responsive */
.mobile-menu-btn {
  display: none;
  font-size: 1.8rem;
  background: none;
  border: none;
  cursor: pointer;
  color: var(--text-black);
}

@media (max-width: 768px) {
  .nav-links {
    display: none;
    flex-direction: column;
    position: absolute;
    top: 70px;
    left: 0;
    width: 100%;
    background: var(--bg-white);
    padding: 1.5rem;
    box-shadow: 0 10px 15px rgba(0,0,0,0.05);
    text-align: center;
    gap: 1.5rem;
  }
  
  .nav-links.active {
    display: flex;
    animation: slideDown 0.3s ease forwards;
  }
  
  .mobile-menu-btn {
    display: block;
  }
  
  .hero-content h1 {
    font-size: 2.2rem !important;
  }
}

@keyframes slideDown {
  from { opacity: 0; transform: translateY(-10px); }
  to { opacity: 1; transform: translateY(0); }
}