:root {
  --primary-color: #1A3A5C;
  --secondary-color: #112840;
  --accent-color: #2E7DB8;
  --light-color: #F0F6FF;
  --dark-color: #080F18;
  --gradient-primary: linear-gradient(135deg, #2E7DB8 0%, #1A3A5C 100%);
  --background-color: #EEF4FB;
  --text-color: #0D1F30;
  --border-color: rgba(26, 58, 92, 0.15);
  --divider-color: rgba(26, 58, 92, 0.1);
  --shadow-color: rgba(26, 58, 92, 0.1);
  --highlight-color: #E8A020;
  --main-font: 'Merriweather', serif;
  --alt-font: 'Inter', sans-serif;
}

html { scroll-behavior: smooth; }
body { font-family: var(--alt-font); color: var(--text-color); background-color: var(--background-color); line-height: 1.7; }
h1, h2, h3 { font-family: var(--main-font); font-weight: 700; line-height: 1.3; }

header {
  background: linear-gradient(90deg, #080F18 0%, #1A3A5C 100%);
  color: var(--light-color);
  padding: 1.4rem 0;
  position: relative; z-index: 1000;
  box-shadow: 0 3px 16px rgba(8, 15, 24, 0.5);
}
header img[alt="logo"] { filter: brightness(0) invert(1); }

footer { background: var(--dark-color); color: var(--light-color); padding: 2rem 0 1rem; }
footer img[alt="logo"] { filter: brightness(0) invert(1); }

.hamburger {
  display: none; flex-direction: column; cursor: pointer;
  padding: 8px; background: rgba(255,255,255,0.1); border-radius: 8px;
}
.hamburger .line {
  width: 28px; height: 3px; background-color: var(--light-color);
  margin: 3px 0; transition: 0.3s; border-radius: 2px;
}
#menu-toggle { display: none; }
#menu-toggle:checked ~ .mobile-nav { max-height: 400px; opacity: 1; }
.mobile-nav {
  position: absolute; top: 100%; left: 0; right: 0;
  background: var(--dark-color);
  max-height: 0; overflow: hidden; opacity: 0;
  transition: all 0.4s ease;
  box-shadow: 0 8px 25px rgba(0,0,0,0.3); z-index: 1000;
}
.mobile-nav ul { padding: 2rem; margin: 0; list-style: none; }
.mobile-nav li { margin: 1rem 0; }
.mobile-nav a {
  display: block; padding: 1rem 1.4rem;
  color: var(--light-color); text-decoration: none;
  border-radius: 10px; transition: all 0.3s ease;
  font-size: 1rem; font-weight: 600; border: 2px solid transparent;
}
.mobile-nav a:hover {
  background-color: rgba(46,125,184,0.2);
  border-color: rgba(46,125,184,0.4);
  transform: translateX(5px);
}

/* Feature cards — vertical, centered, large ghost number top-right */
.feature-card {
  background: white;
  border-radius: 18px;
  padding: 2.4rem 2rem 2rem;
  box-shadow: 0 4px 18px var(--shadow-color);
  text-align: center;
  position: relative;
  overflow: hidden;
  transition: all 0.3s ease;
  border: 2px solid var(--border-color);
}
.feature-card .ghost-num {
  position: absolute;
  top: -0.6rem; right: 0.8rem;
  font-size: 5rem; font-weight: 900;
  color: var(--accent-color); opacity: 0.07;
  font-family: var(--main-font); line-height: 1;
  pointer-events: none;
}
.feature-card:hover {
  transform: translateY(-8px);
  box-shadow: 0 18px 38px rgba(26,58,92,0.2);
  border-color: var(--accent-color);
}
.feature-icon {
  width: 72px; height: 72px;
  background: linear-gradient(135deg, #D0E8F8 0%, #A8D0F0 100%);
  border-radius: 50%;
  display: flex; justify-content: center; align-items: center;
  font-size: 2.2rem;
  margin: 0 auto 1.4rem;
  transition: all 0.35s ease;
}
.feature-card:hover .feature-icon {
  background: var(--gradient-primary);
  transform: scale(1.12) rotate(6deg);
  box-shadow: 0 8px 20px rgba(26,58,92,0.3);
}

/* Form */
input, textarea {
  transition: all 0.3s ease; font-family: var(--alt-font);
  border: 2px solid var(--border-color); border-radius: 10px;
  padding: 1.1rem; background-color: white;
  color: var(--text-color); font-size: 1rem; width: 100%;
  box-sizing: border-box;
}
input:focus, textarea:focus {
  outline: none; border-color: var(--accent-color);
  box-shadow: 0 0 0 4px rgba(46,125,184,0.1);
}
input:hover, textarea:hover { border-color: var(--accent-color); }

/* Buttons */
button, .btn {
  transition: all 0.3s ease;
  background: var(--gradient-primary); color: white; border: none;
  padding: 1.2rem 2.8rem; border-radius: 8px; font-weight: 700;
  font-family: var(--alt-font); cursor: pointer; font-size: 1rem;
  text-decoration: none; display: inline-block; text-align: center;
  box-shadow: 0 6px 18px rgba(26,58,92,0.38);
}
button:hover, .btn:hover {
  transform: translateY(-4px);
  box-shadow: 0 12px 28px rgba(26,58,92,0.45);
  background: linear-gradient(135deg, #112840 0%, #080F18 100%);
}

.active-link { position: relative; font-weight: 700; }
.active-link::after {
  content: '';
  position: absolute; bottom: -5px; left: 0; right: 0;
  height: 3px; background: var(--highlight-color); border-radius: 2px;
}

.pattern-bg {
  background-color: var(--background-color);
  background-image:
    radial-gradient(ellipse at 5% 10%, rgba(46,125,184,0.09) 0%, transparent 55%),
    radial-gradient(ellipse at 92% 85%, rgba(26,58,92,0.07) 0%, transparent 55%);
}

.info-banner {
  background: linear-gradient(135deg, #D0E8F8 0%, #A8CCEC 100%);
  color: var(--text-color); text-align: center;
  border-top: 4px solid var(--accent-color);
  border-bottom: 4px solid var(--accent-color);
}
.info-banner h2 { color: var(--secondary-color); margin-bottom: 1.5rem; }

.contact-wrap { width: 100%; }
@media (min-width: 768px) { .contact-wrap { width: 80%; margin: 0 auto; } }

@media (max-width: 768px) {
  .hamburger { display: flex; }
  .navigation { display: none; }
  .mobile-nav { display: block; }
  .hero h1 { font-size: 2.1rem; }
  .feature-card { padding: 2rem 1.4rem 1.6rem; }
}
@media (max-width: 480px) { .hero h1 { font-size: 1.85rem; } }