* =====================================
   RESET
===================================== */
*,
*::before,
*::after {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family:
    -apple-system,
    BlinkMacSystemFont,
    "Segoe UI",
    Roboto,
    "Helvetica Neue",
    Arial,
    "Noto Sans",
    sans-serif,
    "Apple Color Emoji",
    "Segoe UI Emoji",
    "Segoe UI Symbol",
    "Noto Color Emoji";
  font-size: 15px;
  line-height: 1.6;
  color: #2b2b2b;
  background: #ffffff;
}

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

/* =====================================
   LAYOUT
===================================== */
.container {
  max-width: 1140px;
  margin: 0 auto;
  padding: 0 20px;
}

.section {
  padding: 70px 0;
}

.section-light {
  position: relative;
  padding: 30px 0;
  background-image: url("../images/section-bg.avif");
  background-size: cover;
  background-position: center;
  background-repeat: no-repeat;
}

/* Fade overlay */
.section-light::before {
  content: "";
  position: absolute;
  inset: 0;
  background: rgba(235, 246, 235, 0.92);
}

/* Keep content above overlay */
.section-light > .container {
  position: relative;
}

/* =====================================
   TYPOGRAPHY
===================================== */
h1 {
  font-size: 2.1rem;
  font-weight: 500;
  margin-bottom: 15px;
}

h2 {
  font-size: 1.9rem;
  font-weight: 500;
  margin-bottom: 15px;
}

h4 {
  font-size: 1.05rem;
  font-weight: 500;
  margin-bottom: 10px;
}

p {
  color: #5c5c5c;
}

.lead {
  font-size: 1.05rem;
}

/* =====================================
   NAVBAR
===================================== */
.navbar {
  background: #ffffff;
  border-bottom: 1px solid #e5e5e5;
  position: sticky;
  top: 0;
  z-index: 1000;
}

.navbar-container {
  max-width: 1140px;
  margin: 0 auto;
  padding: 0 20px;
  height: 72px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

/* Brand */
.navbar-brand img {
  height: 48px;
}

/* Controls wrapper */
.navbar-controls {
  position: relative;
  display: flex;
  align-items: center;
}

/* Toggle */
.navbar-toggle {
  font-size: 30px;
  background: none;
  border: none;
  cursor: pointer;
  display: none;
}

/* Menu (desktop) */
.navbar-menu {
  display: flex;
  gap: 20px;
}

.navbar-menu a {
  font-size: 15px;
  text-decoration: none;
  color: #2b2b2b;
}

.navbar-menu a.active {
  font-weight: 500;
}

/* =====================================
   NAVBAR - MOBILE
===================================== */
@media (max-width: 768px) {

  .navbar-toggle {
    display: block;
  }

  .navbar-menu {
    position: absolute;
    top: 48px;            /* under ☰ icon */
    right: 0;             /* aligned to icon */
    width: 150px;
    display: none;
    flex-direction: column;
    background: #ffffff;
    border: 1px solid #e5e5e5;
    box-shadow: 0 8px 20px rgba(0,0,0,0.12);
  }

  .navbar-menu.open {
    display: flex;
  }

  .navbar-menu a {
    padding: 10px 16px;
    border-bottom: 1px solid #f2f2f2;
    text-align: left;
  }

  .navbar-menu a:last-child {
    border-bottom: none;
  }
}

/* =====================================
   GRID & CARDS
===================================== */
.grid-3 {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 30px;
}

.card {
  background: #ffffff;
  box-shadow: 0 12px 24px rgba(0,0,0,0.1);
  overflow: hidden;
}

.card img {
  width: 100%;
  height: 210px;
  object-fit: cover;
}

.card-body {
  padding: 22px;
}

/* Align image & text on mobile */
@media (max-width: 768px) {

  .grid-3 {
    grid-template-columns: 1fr;
  }

  .card {
    padding: 0 20px;
  }

  .card img {
    width: 100%;
  }
}
/* =====================================
   TIMELINE
===================================== */

.timeline {
  margin-top: 30px;
  position: relative;
  padding-left: 30px;
  border-left: 2px solid #d5e6d5; /* light green theme line */
}

.timeline-item {
  position: relative;
  margin-bottom: 30px;
  padding-left: 10px;
}

/* Bullet */
.timeline-item::before {
  content: "";
  position: absolute;
  left: -11px;
  top: 6px;
  width: 12px;
  height: 12px;
  background-color: #4a9b4f; /* logo green */
  border-radius: 50%;
}

/* Year */
.timeline-year {
  font-weight: 500;
  font-size: 14px;
  color: #4a9b4f;
  margin-bottom: 4px;
}

/* Title */
.timeline-title {
  font-weight: 500;
  margin-bottom: 4px;
}

/* =====================================
   FOOTER
===================================== */
.footer {
  background: rgba(235, 246, 235, 0.92);
  text-align: center;
  padding: 40px 0;
}

.footer-links a {
  font-size: 14px;
  color: #2b2b2b;
  text-decoration: none;
  margin: 0 10px;
}

.footer p {
  font-size: 13px;
  color: #777;
  margin-top: 10px;
}