:root {
  --green-deep: #0B4F2E;
  --green-soft: #2D6A4F;
  --green-yellowish: #8FB339;
  --sand-light: #F5F0E8;
  --gray-warm: #F9F7F4;
  --gray-border: #E2DFD9;
  --text-dark: #1C1917;
  --text-muted: #57534E;
  --white: #FFFFFF;
  --shadow-subtle: 0 4px 12px rgba(0, 0, 0, 0.02);
  --shadow-medium: 0 8px 24px rgba(0, 0, 0, 0.04);
  --border-radius-card: 16px;
  --border-radius-btn: 40px;
  --transition: all 0.3s cubic-bezier(0.25, 0.1, 0.15, 1);
}

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

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  background-color: var(--white);
  color: var(--text-dark);
  line-height: 1.6;
  font-weight: 350;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

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

h1, h2, h3, h4 {
  font-family: 'Cormorant', serif;
  font-weight: 700;
  letter-spacing: -0.02em;
  line-height: 1.1;
  color: var(--green-deep);
}
h1 { font-size: clamp(3.5rem, 8vw, 5.2rem); margin-bottom: 1.5rem; }
h2 { font-size: clamp(2.8rem, 6vw, 4rem); margin-bottom: 1.2rem; }
h3 { font-size: 2.2rem; font-weight: 600; }
h4 { font-size: 1.5rem; font-weight: 600; margin-bottom: 0.5rem; }

p {
  color: var(--text-muted);
  font-weight: 350;
  font-size: 1.1rem;
  line-height: 1.6rem;
}

.container {
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 2rem;
}

section {
  padding: 4rem 0;
  position: relative;
}

.text-center { text-align: center; }
.large-text { font-size: 1.4rem; font-weight: 350; }
.italic { font-style: italic; color: var(--text-muted); }
.my-4 { margin: 4rem 0; }

/* section title */
.section-title { text-align: center; margin-bottom: 1rem; }
.section-title h2 {
  display: inline-block;
  position: relative;
  margin-top: 3rem;
  font-size: 2.5rem;
}
.section-title h2::after {
  content: '';
  display: block;
  width: 80px;
  height: 4px;
  background: var(--green-soft);
  margin: 1rem auto 0;
  border-radius: 2px;
}

/* header */
header {
  background: rgba(255, 255, 255, 0.98);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--gray-border);
  padding: 0.75rem 0;
  position: sticky;
  top: 0;
  z-index: 100;
  transition: padding 0.2s;
}

nav {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 1rem;
}

/* LOGO */
.logo {
  display: flex;
  align-items: center;
  gap: 0.8rem;
}
.logo-img {
  height: 80px;
  width: auto;
  border-radius: 0;
  object-fit: cover;
  transition: height 0.2s ease;
  border: 2px solid var(--green-soft);
}
.logo-text {
  font-family: 'Cormorant', serif;
  font-weight: 700;
  font-size: 2.2rem;
  line-height: 1.2;
  color: var(--green-deep);
}
.logo-text small {
  display: block;
  font-size: 1rem;
  font-family: 'Inter', sans-serif;
  font-weight: 400;
  letter-spacing: 0.5px;
  color: var(--text-muted);
}

/* shrink on scroll */
header.shrink .logo-img { height: 50px; }
header.shrink .logo-text { font-size: 1.8rem; }
header.shrink .logo-text small { font-size: 0.8rem; }

/* Hamburger menu */
.hamburger {
  display: none;
  flex-direction: column;
  justify-content: space-around;
  width: 30px;
  height: 25px;
  background: transparent;
  border: none;
  cursor: pointer;
  padding: 0;
  z-index: 200;
}
.hamburger span {
  width: 100%;
  height: 3px;
  background: var(--green-deep);
  transition: all 0.3s linear;
}

/* navigation links */
.nav-links {
  display: flex;
  gap: 2rem;
  flex-wrap: wrap;
}
.nav-links a {
  color: var(--text-dark);
  font-weight: 500;
  font-size: 1rem;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  padding: 0.5rem 0;
  border-bottom: 2px solid transparent;
  transition: var(--transition);
}
.nav-links a:hover {
  border-bottom-color: var(--green-soft);
  color: var(--green-deep);
}

/* mobile adjustments */
@media (max-width: 768px) {
  .hamburger { display: flex; }
  .nav-links {
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: var(--white);
    flex-direction: column;
    align-items: center;
    padding: 2rem;
    gap: 1.5rem;
    border-bottom: 1px solid var(--gray-border);
    transform: translateY(-100%);
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s ease;
    box-shadow: var(--shadow-medium);
  }
  .nav-links.show {
    transform: translateY(0);
    opacity: 1;
    visibility: visible;
  }
  .logo-text {
    display: flex;
    flex-direction: column;
    line-height: 1.2;
  }
  .logo-text small { font-size: 0.8rem; }
  .logo-img { height: 50px; }
}

/* hero background */
.hero {
  background: linear-gradient(0deg, rgba(0,0,0,0.2), rgba(0,0,0,0.3)),
              url('../images/hero-image3.jpg') center/cover no-repeat fixed;
  color: white;
  text-align: center;
  padding: 8rem 0 6rem;
}
.hero h1 {
  color: white;
  text-shadow: 0 2px 10px rgba(0, 0, 0, 0.3);
  min-height: 6rem;
}
.hero-text {
  font-size: 1.4rem;
  max-width: 700px;
  margin: 0 auto 2.5rem;
  color: rgba(255,255,255,0.95);
}

/* button styles */
.btn-group {
  display: flex;
  gap: 1.5rem;
  justify-content: center;
  flex-wrap: wrap;
}
.btn {
  display: inline-block;
  padding: 1rem 3rem;
  border-radius: var(--border-radius-btn);
  font-weight: 600;
  font-size: 1.1rem;
  transition: var(--transition);
  border: 1px solid transparent;
}
.btn-primary {
  background: var(--green-yellowish);
  color: var(--white);
  border-color: var(--green-yellowish);
}
.btn-primary:hover {
  background: var(--green-soft);
  transform: translateY(-4px) scale(1.02);
  box-shadow: 0 12px 24px -8px rgba(11, 79, 46, 0.3);
  border-color: var(--green-soft);
}
.btn-outline {
  background: var(--white);
  color: var(--green-deep);
  border: 1px solid var(--green-deep);
}
.btn-outline:hover {
  background: var(--green-deep);
  color: var(--white);
  transform: translateY(-4px) scale(1.02);
  border-color: var(--green-deep);
}

/* sticky background overlay (used for impact) */
.sticky-bg {
  position: relative;
  color: white;
}
.sticky-bg::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0; bottom: 0;
  background: rgba(0, 0, 0, 0.5);
  z-index: 0;
}
.sticky-bg > * {
  position: relative;
  z-index: 1;
}

/* Impact section – new green-yellow background with image overlay */
.impact-bg {
  background-color: var(--green-soft);
  position: relative;
  isolation: isolate;
}
.impact-bg::after {
  content: '';
  position: absolute;
  inset: 0;
  background: url('images/hero-image-2.png') center/cover no-repeat;
  opacity: 0.1;
  z-index: -1;
  pointer-events: none;
}
.impact-bg .stat-number,
.impact-bg .stat-label,
.impact-bg .large-text {
  color: white;
}

/* vision/mission cards */
.vision-mission-wrapper {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 2.5rem;
  margin: 2.5rem 0 4rem;
}
.vision-mission-card {
  background: var(--green-yellowish);
  padding: 1.2rem 1.2rem;
  border-radius: var(--border-radius-card);
  border: 1px solid var(--gray-border);
  text-align: center;
  transition: var(--transition);

}
.vision-mission-card-2 {
  background: var(--green-deep);
  padding: 1.2rem 1.2rem;
  border-radius: var(--border-radius-card);
  border: 1px solid var(--gray-border);
  text-align: center;
  transition: var(--transition);
}
.vision-mission-card-2 p, .vision-mission-card p,
.vision-mission-card h3, .vision-mission-card-2 h3 {
  color: white;
  padding-top: 1rem;
}

.principle-item-2 p{
  color: white;
}
.vision-mission-card:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-medium);
}
.vision-mission-card i, .vision-mission-card-2 i {
  font-size: 3rem;
  color: var(--white);
  margin-bottom: 1.5rem;
}

.principles-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 2rem;
  margin: 3rem 0;
}
.principle-item, .principle-item-2 {
  background: var(--white);
  border: 1px solid var(--gray-border);
  border-radius: 32px;
  padding: 2rem;
  transition: var(--transition);
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
}
.principle-item:hover {
  transform: scale(1.02) translateY(-4px);
  border-color: var(--green-soft);
  box-shadow: var(--shadow-medium);
}
.principle-item i {
  font-size: 2.8rem;
  color: var(--green-soft);
  margin-bottom: 1.2rem;
}
.principle-item strong {
  font-size: 1.8rem;
  font-family: 'Cormorant', serif;
  color: var(--green-deep);
  margin-bottom: 0.5rem;
}
.principle-item-2 {
  background: var(--green-deep);
}
.principle-item-2 strong {
  font-size: 1.8rem;
  font-family: 'Cormorant', serif;
  color: var(--white);
  margin-bottom: 0.5rem;
}
.principle-item-2 i {
  font-size: 2.8rem;
  color: var(--white);
  margin-bottom: 1.2rem;
}

/* Team grid - vifungo vinaonekana sasa */
.team-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 2.5rem 1.5rem;
  margin: 3rem 0;
}
.team-member {
  text-align: center;
  transition: var(--transition);
  position: relative;
}
.team-member:hover { transform: translateY(-6px); }
.team-img {
  width: 230px;
  height: 300px;
  margin: 0 auto 1.2rem;
  border-radius: 5%;
  overflow: hidden;
  transition: var(--transition);
  padding: 3px;
}
.team-member:hover .team-img {
  border-color: var(--green-soft);
  transform: rotate(2deg);
}
.team-img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.team-member .role {
  color: var(--green-soft);
  font-weight: 500;
  margin-bottom: 0.5rem;
}
/* Profile button - sasa inaonekana wakati wote */
.btn-profile {
  display: inline-block;
  background: var(--green-yellowish);
  color: white;
  padding: 0.6rem 1.5rem;
  border-radius: 40px;
  font-weight: 600;
  margin-top: 1rem;
  transition: var(--transition);
  border: 1px solid transparent;
}
.btn-profile:hover {
  background: var(--green-soft);
  transform: translateY(-2px);
  box-shadow: 0 8px 16px rgba(11,79,46,0.2);
}

.projects-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 2rem;
  margin: 2rem 0;
}
.project-card {
  background: white;
  border-radius: 24px;
  border: 1px solid var(--gray-border);
  overflow: hidden;
  transition: var(--transition);
}
.project-card:hover {
  transform: translateY(-8px);
  border-color: var(--green-soft);
  box-shadow: var(--shadow-medium);
}
.project-card img {
  height: 220px;
  width: 100%;
  object-fit: cover;
  transition: var(--transition);
}
.project-card:hover img { transform: scale(1.05); }
.project-content { padding: 2rem; }
/* Ensure button inside project card has same spacing */
.project-content .btn-profile {
  margin-top: 1.5rem;
}

.swiper {
  width: 100%;
  height: 500px;
  border-radius: 32px;
  margin: 3rem 0;
}
.swiper-slide {
  text-align: center;
  background: #f5f5f5;
  display: flex;
  justify-content: center;
  align-items: center;
}
.swiper-slide img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.swiper-pagination-bullet-active { background: var(--green-soft) !important; }

.impact-stats {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 4rem;
  text-align: center;
  margin: 4rem 0;
}
.stat-item { flex: 1 1 180px; }
.stat-number {
  font-size: 4.5rem;
  font-weight: 700;
  font-family: 'Cormorant', serif;
  color: white;
  line-height: 1;
}
.stat-label {
  font-size: 1.2rem;
  color: rgba(255,255,255,0.9);
}

.partners-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
  gap: 2rem;
  align-items: center;
  margin: 3rem 0;
}
.partner-item {
  text-align: center;
  opacity: 0.8;
  transition: var(--transition);
}
.partner-item:hover {
  opacity: 1;
  transform: scale(1.05);
}
.partner-item img {
  max-width: 150px;
  height: 150px;
  filter: grayscale(0.4);
  transition: var(--transition);
}
.partner-item:hover img { filter: grayscale(0); }

.contact-card {
  padding: 3rem;
  max-width: 700px;
  margin: 0 auto;
}
.contact-card p{
  line-height: 2.5rem;
}
.form-group { margin: 1.5rem 0; }
.form-control {
  width: 100%;
  padding: 1rem 1.5rem;
  border: 1px solid var(--gray-border);
  border-radius: 40px;
  font-family: 'Inter', sans-serif;
  font-size: 1rem;
  background: white;
  transition: var(--transition);
}
.form-control:focus {
  outline: none;
  border-color: var(--green-deep);
  box-shadow: 0 0 0 3px rgba(11,79,46,0.1);
}
textarea.form-control { border-radius: 24px; }
.btn-submit {
  background: var(--green-deep);
  color: white;
  border: none;
  padding: 1rem 3rem;
  font-size: 1.1rem;
  border-radius: 40px;
  font-weight: 500;
  cursor: pointer;
  transition: var(--transition);
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
}
.btn-submit:hover {
  background: var(--green-soft);
  transform: translateY(-2px);
  box-shadow: 0 8px 16px rgba(11,79,46,0.2);
}

footer {
  background: var(--gray-warm);
  border-top: 1px solid var(--gray-border);
  padding: 4rem 0 2rem;
  margin-top: 4rem;
}
.footer-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 3rem;
  margin-bottom: 3rem;
}
.footer-grid h4 {
  font-family: 'Inter', sans-serif;
  font-weight: 600;
  font-size: 1rem;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  color: var(--green-deep);
  margin-bottom: 1.5rem;
}
.footer-grid ul { list-style: none; }
.footer-grid li a {
  color: var(--text-muted);
  line-height: 2;
  transition: var(--transition);
}
.footer-grid li a:hover {
  color: var(--green-deep);
  padding-left: 4px;
}
.copyright {
  text-align: center;
  border-top: 1px solid var(--gray-border);
  padding-top: 2rem;
  color: var(--text-muted);
}

.fade-in {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.8s ease-out, transform 0.8s ease-out;
}
.fade-in.visible {
  opacity: 1;
  transform: translateY(0);
}

/* additional mobile tweaks */
@media (max-width: 768px) {
  .container { padding: 0 1.5rem; }
  section { padding: 3rem 0; }
  .hero { padding: 6rem 0 4rem; background-attachment: scroll; }
  .hero-text { font-size: 1.2rem; }
  .swiper { height: 300px; }
  .stat-number { font-size: 3rem; }
  .impact-bg { background-attachment: scroll; }
}

@media (max-width: 480px) {
  .btn-group { flex-direction: column; }
  .btn { width: 100%; text-align: center; }
}

/* ----- big rounded logo (index page) ----- */
.big-logo {
  text-align: center;
  margin: 2rem 0 3rem;
}
.big-logo img {
  width: 220px;
  height: 220px;
  border-radius: 50%;
  object-fit: cover;
  box-shadow: var(--shadow-medium);
  transition: var(--transition);
}
.big-logo img:hover {
  transform: scale(1.02);
  border-color: var(--green-deep);
}

/* ----- gallery grid (replaces swiper) ----- */
.gallery-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 1.5rem;
  margin: 3rem 0;
}
.gallery-grid img {
  width: 100%;
  height: 280px;
  object-fit: cover;
  border-radius: 20px;
  transition: var(--transition);
  border: 1px solid var(--gray-border);
  box-shadow: var(--shadow-subtle);
}
.gallery-grid img:hover {
  transform: scale(1.02);
  box-shadow: var(--shadow-medium);
  border-color: var(--green-soft);
}

/* ----- back‑to‑top button ----- */
.back-to-top {
  position: fixed;
  bottom: 2rem;
  right: 2rem;
  background: var(--green-soft);
  color: white;
  width: 52px;
  height: 52px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.6rem;
  cursor: pointer;
  opacity: 0;
  visibility: hidden;
  transition: var(--transition);
  border: none;
  z-index: 999;
  box-shadow: 0 6px 16px rgba(0,0,0,0.15);
}
.back-to-top.show {
  opacity: 1;
  visibility: visible;
}
.back-to-top:hover {
  background: var(--green-deep);
  transform: translateY(-5px);
}

/* ----- simplified footer ----- */
.footer-simple {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 1.2rem;
  text-align: center;
}
.social-links {
  display: flex;
  gap: 2rem;
  font-size: 1.8rem;
  margin-bottom: 0.5rem;
}
.social-links a {
  color: var(--green-soft);
  transition: var(--transition);
}
.social-links a:hover {
  color: var(--green-deep);
  transform: translateY(-3px);
}
.footer-designed {
  color: var(--text-muted);
  font-size: 0.95rem;
}
.footer-designed a {
  color: var(--green-soft);
  text-decoration: underline;
  font-weight: 500;
}
.copyright {
  color: var(--text-muted);
  font-size: 0.9rem;
  border-top: 1px solid var(--gray-border);
  padding-top: 1.5rem;
  width: 100%;
}