:root {
  --color-accent: #006639;
  --color-accent-hover: #027db3;
  --color-text: #666;
  --color-heading: #333;
  --color-muted: #999;
  --color-border: #f2f2f2;
  --color-bg: #fff;
  --color-overlay: rgba(0, 0, 0, 0.55);
  --max-width: 1170px;
}

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

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: 'Open Sans', -apple-system, BlinkMacSystemFont, 'Helvetica Neue', sans-serif;
  font-size: 14px;
  line-height: 1.7;
  color: var(--color-text);
  background-color: var(--color-bg);
}

h1,
h2,
h3,
h4,
h5,
h6 {
  color: var(--color-heading);
  font-weight: 700;
  margin: 0 0 20px;
}

h2 {
  font-size: 30px;
}

h3 {
  font-size: 18px;
}

p {
  margin: 0 0 12px;
}

a {
  color: var(--color-accent);
  text-decoration: none;
  transition: color 200ms ease, background-color 200ms ease;
}

a:hover,
a:focus {
  color: var(--color-accent-hover);
}

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

.container {
  width: 100%;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 20px;
}

.section {
  padding: 90px 0;
}

.section-heading {
  text-align: center;
  margin: 0 auto 60px;
  max-width: 720px;
}

.section-heading h2 {
  margin-bottom: 16px;
}

/* Reveal animation (replaces wow.js fadeInUp/fadeInDown/flipInY) */
.reveal {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 800ms ease, transform 800ms ease;
}

.reveal.is-visible {
  opacity: 1;
  transform: translateY(0);
}

/* Header / Hero */
.hero {
  position: relative;
  min-height: 100vh;
  background-image: url('../images/hero.jpg');
  background-size: cover;
  background-position: center;
  background-repeat: no-repeat;
  color: #fff;
  display: flex;
  flex-direction: column;
}

.hero::after {
  content: '';
  position: absolute;
  inset: 0;
  background: var(--color-overlay);
  z-index: 1;
}

.hero > * {
  position: relative;
  z-index: 2;
}

.main-nav {
  background-color: var(--color-accent);
}

.nav-container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 20px;
}

.nav-brand {
  display: inline-flex;
  align-items: center;
  padding: 10px 0;
}

.nav-brand img {
  max-height: 40px;
  width: auto;
}

.nav-toggle {
  display: none;
  background: transparent;
  border: 0;
  padding: 12px;
  cursor: pointer;
  color: #fff;
}

.nav-toggle svg {
  width: 24px;
  height: 24px;
  display: block;
  fill: currentColor;
}

.nav-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  gap: 4px;
}

.nav-list a {
  display: inline-block;
  padding: 26px 18px;
  color: #fff;
  text-transform: uppercase;
  font-size: 14px;
  font-weight: 600;
  letter-spacing: 0.05em;
}

.nav-list a:hover,
.nav-list a:focus,
.nav-list .is-active a {
  background-color: rgba(0, 0, 0, 0.2);
  color: #fff;
}

.hero-content {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 80px 20px;
}

.hero-content h1 {
  color: #fff;
  font-size: 60px;
  letter-spacing: 0.02em;
  margin-bottom: 24px;
  text-transform: uppercase;
}

.hero-content p {
  color: #fff;
  font-size: 18px;
  margin-bottom: 36px;
  text-transform: uppercase;
  letter-spacing: 0.1em;
}

.btn {
  display: inline-block;
  padding: 14px 40px;
  border: 1px solid rgba(255, 255, 255, 0.7);
  border-radius: 4px;
  color: #fff;
  font-size: 14px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  background-color: transparent;
  cursor: pointer;
}

.btn:hover,
.btn:focus {
  background-color: var(--color-accent);
  border-color: var(--color-accent);
  color: #fff;
}

.hero-scroll-down {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  position: absolute;
  bottom: 40px;
  left: 50%;
  transform: translateX(-50%);
  width: 36px;
  height: 36px;
  color: #fff;
  animation: bounce 2.4s ease-in-out infinite;
}

.hero-scroll-down svg {
  width: 24px;
  height: 24px;
  fill: currentColor;
}

@keyframes bounce {
  0%,
  100% {
    transform: translate(-50%, 0);
  }
  50% {
    transform: translate(-50%, -10px);
  }
}

/* Services */
.services-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0;
}

.service-card {
  text-align: center;
  padding: 30px 24px 50px;
  border-right: 1px solid var(--color-border);
}

.service-card:last-child {
  border-right: 0;
}

.service-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 90px;
  height: 90px;
  border-radius: 4px;
  background-color: var(--color-accent);
  color: #fff;
  margin-bottom: 24px;
  transition: background-color 200ms ease, transform 200ms ease;
}

.service-card:hover .service-icon {
  background-color: var(--color-heading);
  transform: translateY(-4px);
}

.service-icon svg {
  width: 40px;
  height: 40px;
  fill: currentColor;
}

.service-card h3 {
  margin-bottom: 12px;
  line-height: 1.4;
}

/* About */
#about-us {
  background-color: var(--color-accent);
  color: #fff;
  padding: 80px 0;
  text-align: center;
}

#about-us h2 {
  color: #fff;
}

#about-us p {
  color: rgba(255, 255, 255, 0.9);
  font-size: 16px;
}

/* Members */
.members-grid {
  display: flex;
  justify-content: center;
  align-items: flex-start;
  flex-wrap: wrap;
  gap: 30px;
}

.team-member {
  text-align: center;
  width: 100%;
  max-width: 360px;
  margin: 0 auto;
  color: var(--color-heading);
}

.member-image img {
  width: 100%;
  height: auto;
  border-radius: 4px;
}

.member-info h3 {
  margin-top: 30px;
}

.member-info h4 {
  font-size: 14px;
  margin: 0 0 12px;
  color: var(--color-muted);
  font-weight: 600;
}

.social-icons ul {
  list-style: none;
  margin: 24px 0 0;
  padding: 0;
  display: inline-flex;
  gap: 8px;
}

.social-icons a {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  background-color: #d9d9d9;
  color: #fff;
  border-radius: 2px;
  opacity: 0.85;
  transition: background-color 200ms ease, transform 200ms ease, opacity 200ms ease;
}

.social-icons a svg {
  width: 16px;
  height: 16px;
  fill: currentColor;
}

.social-icons a:hover {
  opacity: 1;
  transform: scale(1.1);
  color: #fff;
}

.team-member:hover .social-icons a.x,
.social-icons a.x:hover {
  background-color: #000;
}
.team-member:hover .social-icons a.github,
.social-icons a.github:hover {
  background-color: #35465c;
}
.team-member:hover .social-icons a.slideshare,
.social-icons a.slideshare:hover {
  background-color: #2049bc;
}
.team-member:hover .social-icons a.facebook,
.social-icons a.facebook:hover {
  background-color: #3b5999;
}

/* Static page hero (smaller than top hero) */
.page-hero {
  position: relative;
  background-image: url('../images/hero.jpg');
  background-size: cover;
  background-position: center;
  background-repeat: no-repeat;
  color: #fff;
}

.page-hero::after {
  content: '';
  position: absolute;
  inset: 0;
  background: var(--color-overlay);
  z-index: 1;
}

.page-hero .main-nav {
  position: relative;
  z-index: 2;
}

.page-hero-content {
  position: relative;
  z-index: 2;
  text-align: center;
  padding: 80px 20px;
}

.page-hero-content h1 {
  color: #fff;
  font-size: 48px;
  letter-spacing: 0.02em;
  margin-bottom: 12px;
  text-transform: uppercase;
}

.page-hero-content p {
  color: rgba(255, 255, 255, 0.9);
  font-size: 16px;
  margin: 0;
  letter-spacing: 0.06em;
}

/* Static page content */
.page-content {
  padding: 80px 0;
}

.page-content .container {
  max-width: 820px;
}

.page-content h2 {
  font-size: 26px;
  margin: 48px 0 18px;
  padding-bottom: 10px;
  border-bottom: 2px solid var(--color-accent);
}

.page-content h2:first-child {
  margin-top: 0;
}

.page-content h3 {
  font-size: 18px;
  margin: 32px 0 12px;
  color: var(--color-accent);
}

.page-content h4 {
  font-size: 15px;
  margin: 24px 0 8px;
  color: var(--color-heading);
}

.page-content p {
  font-size: 15px;
  margin: 0 0 16px;
}

.page-content ul,
.page-content ol {
  padding-left: 1.4em;
  margin: 0 0 16px;
}

.page-content li {
  margin-bottom: 6px;
  font-size: 15px;
}

.page-content li > ul,
.page-content li > ol {
  margin-top: 6px;
  margin-bottom: 6px;
}

.page-content a {
  text-decoration: underline;
  text-underline-offset: 2px;
}

.page-content code {
  font-family: 'SFMono-Regular', Consolas, 'Liberation Mono', Menlo, monospace;
  font-size: 0.92em;
  background-color: var(--color-border);
  color: var(--color-heading);
  padding: 2px 6px;
  border-radius: 3px;
}

.page-content pre {
  background-color: #f7f7f7;
  border: 1px solid var(--color-border);
  border-radius: 4px;
  padding: 14px 16px;
  overflow-x: auto;
  font-size: 13px;
  line-height: 1.6;
  margin: 0 0 16px;
}

.page-content pre code {
  background: transparent;
  padding: 0;
  border-radius: 0;
}

.page-content blockquote {
  margin: 0 0 16px;
  padding: 8px 18px;
  border-left: 4px solid var(--color-accent);
  background-color: #fafafa;
  color: var(--color-heading);
}

.page-content table {
  width: 100%;
  border-collapse: collapse;
  margin: 0 0 16px;
  font-size: 14px;
}

.page-content th,
.page-content td {
  padding: 10px 14px;
  border: 1px solid var(--color-border);
  text-align: left;
}

.page-content th {
  background-color: #fafafa;
  color: var(--color-heading);
  font-weight: 600;
}

.page-content hr {
  border: 0;
  border-top: 1px solid var(--color-border);
  margin: 36px 0;
}

@media (max-width: 767px) {
  .page-hero-content {
    padding: 60px 20px;
  }
  .page-hero-content h1 {
    font-size: 32px;
  }
  .page-content {
    padding: 60px 0;
  }
  .page-content h2 {
    font-size: 22px;
  }
}

/* Footer */
#footer {
  color: #fff;
}

.footer-top {
  background-color: var(--color-accent);
  padding: 40px 0;
  text-align: center;
}

.footer-logo img {
  margin: 0 auto 8px;
  max-height: 40px;
  width: auto;
}

.footer-top .social-icons a {
  background-color: rgba(0, 0, 0, 0.2);
  border-radius: 4px;
}

.footer-bottom {
  background-color: #fff;
  color: var(--color-accent);
  padding: 18px 0;
}

.footer-bottom-inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 8px;
  font-size: 13px;
}

.footer-bottom a {
  color: var(--color-accent);
}

.footer-bottom a:hover {
  text-decoration: underline;
}

/* Responsive */
@media (max-width: 991px) {
  .hero-content h1 {
    font-size: 44px;
  }

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

  .service-card {
    border-right: 0;
    border-bottom: 1px solid var(--color-border);
  }

  .service-card:last-child {
    border-bottom: 0;
  }
}

@media (max-width: 767px) {
  .section {
    padding: 60px 0;
  }

  .nav-toggle {
    display: inline-flex;
  }

  .nav-list {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background-color: var(--color-accent);
    flex-direction: column;
    padding: 8px 0;
    z-index: 5;
  }

  .nav-list.is-open {
    display: flex;
  }

  .nav-list a {
    padding: 14px 20px;
  }

  .main-nav {
    position: relative;
  }

  .hero-content h1 {
    font-size: 32px;
  }

  .hero-content p {
    font-size: 16px;
  }

  h2 {
    font-size: 24px;
  }

  .footer-bottom-inner {
    justify-content: center;
    text-align: center;
  }
}