/* ==========================
   Root Variables
========================== */
:root {
  --primary: #0F2A3D;
  --secondary: #2F6F73;
  --light: #F4F6F7;
  --gray: #6B7C85;
  --white: #ffffff;
  --max-width: 1100px;
}

/* ==========================
   Global Reset
========================== */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body {
  font-family: "Segoe UI", sans-serif;
  line-height: 1.6;
  background: var(--white);
  color: var(--primary);
}

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

img {
  max-width: 100%;
  display: block;
}

/* ==========================
   Layout
========================== */
.container {
  max-width: var(--max-width);
  margin: auto;
  padding: 0 20px;
}

section {
  padding: 80px 0;
}

.btn {
  display: inline-block;
  padding: 12px 24px;
  background: var(--secondary);
  color: var(--white);
  border-radius: 6px;
  transition: 0.3s ease;
}

.btn:hover {
  background: var(--primary);
}

/* ==========================
   Header
========================== */
header {
  background: var(--white);
  border-bottom: 1px solid #eee;
  position: sticky;
  top: 0;
  z-index: 1000;
}

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

.nav-links {
  display: flex;
  gap: 20px;
}

.nav-links a {
  font-weight: 500;
  color: var(--primary);
}

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

/* ==========================
   Hero
========================== */
.hero {
  position: relative;
  height: 80vh;
  background: url('../images/hero.jpg') center/cover no-repeat;
  display: flex;
  align-items: center;
  color: white;
}

.hero-overlay {
  position: absolute;
  inset: 0;
  background: rgba(15, 42, 61, 0.65);
}

.hero-content {
  position: relative;
  z-index: 2;
  max-width: 700px;
}

.hero h1 {
  font-size: 42px;
  margin-bottom: 20px;
}

.hero p {
  font-size: 18px;
  margin-bottom: 30px;
}

/* ==========================
   Cards
========================== */
.card-grid {
  display: grid;
  gap: 30px;
}

@media (min-width: 768px) {
  .card-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

.card {
  background: var(--light);
  padding: 30px;
  border-radius: 10px;
  transition: 0.3s ease;
}

.card:hover {
  transform: translateY(-5px);
}

.card h3 {
  margin-bottom: 15px;
}

/* ==========================
   Expandable Drawer
========================== */
.drawer-content {
  display: none;
  margin-top: 15px;
  font-size: 14px;
  color: var(--gray);
}

.drawer-content.active {
  display: block;
}

/* ==========================
   Footer
========================== */
footer {
  background: var(--primary);
  color: var(--white);
  padding: 40px 0;
  text-align: center;
}

.footer-links {
  margin-top: 15px;
}

.footer-links a {
  margin: 0 10px;
  color: var(--white);
  font-size: 18px;
}

footer a:hover {
  color: var(--secondary);
  text-decoration: underline;
}

/* Style all font awesome icons */
.fa {
  padding: 20px; /* Space around the icon */
  font-size: 30px; /* Icon size */
  width: 30px; /* Control the clickable area width */
  text-align: center; /* Center the icon within the width */
  text-decoration: none; /* Remove default link underline */
  margin: 5px; /* Space between icons */
  color: white; /* Default icon color */
  border-radius: 50%; /* Make them round, remove for square */
}

/* Add a hover effect */
.fa:hover {
  opacity: 0.7;
}

/* ==========================
   Sticky Header + Blur
========================== */

#site-header {
  position: sticky;
  top: 0;
  z-index: 1000;
  background: rgba(255, 255, 255, 0.85);
  backdrop-filter: blur(10px);
  transition: box-shadow 0.3s ease, background 0.3s ease;
}

#site-header.scrolled {
  box-shadow: 0 4px 12px rgba(0,0,0,0.08);
}

.hamburger {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
}

.hamburger span {
  width: 25px;
  height: 3px;
  background: var(--primary);
  transition: all 0.3s ease;
}

@media (max-width: 768px) {

  .hamburger {
    display: flex;
  }

  .nav-links {
    position: absolute;
    top: 80px;
    right: 0;
    width: 100%;
    flex-direction: column;
    align-items: center;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(8px);
    overflow: hidden;

    max-height: 0;
    opacity: 0;
    transform: translateY(-10px);
    transition: 
      max-height 0.4s ease,
      opacity 0.3s ease,
      transform 0.3s ease;
  }

  .nav-links.active {
    max-height: 400px;
    opacity: 1;
    transform: translateY(0);
    padding: 20px 0;
  }

  .nav-links a {
    padding: 12px 0;
    width: 100%;
    text-align: center;
  }
}

.hamburger.active span:nth-child(1) {
  transform: rotate(45deg) translate(5px, 5px);
}

.hamburger.active span:nth-child(2) {
  opacity: 0;
}

.hamburger.active span:nth-child(3) {
  transform: rotate(-45deg) translate(5px, -5px);
}