/* =============================================
   Global Reset & Variables
   ============================================= */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

:root {
  --color-primary:    #2563eb;
  --color-primary-dark: #1d4ed8;
  --color-secondary:  #10b981;
  --color-dark:       #1e293b;
  --color-gray:       #64748b;
  --color-light-gray: #f1f5f9;
  --color-white:      #ffffff;
  --font-sans:        'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
  --radius:           8px;
  --shadow:           0 4px 6px -1px rgba(0,0,0,.1), 0 2px 4px -1px rgba(0,0,0,.06);
  --shadow-lg:        0 10px 15px -3px rgba(0,0,0,.1), 0 4px 6px -2px rgba(0,0,0,.05);
  --transition:       0.25s ease;
  --max-width:        1100px;
}

html { scroll-behavior: smooth; }

body {
  font-family: var(--font-sans);
  color: var(--color-dark);
  background: var(--color-white);
  line-height: 1.6;
}

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

a {
  color: var(--color-primary);
  text-decoration: none;
  transition: color var(--transition);
}
a:hover { color: var(--color-primary-dark); }

ul { list-style: none; }

.container {
  width: 90%;
  max-width: var(--max-width);
  margin: 0 auto;
}

/* =============================================
   Navigation
   ============================================= */
.navbar {
  position: sticky;
  top: 0;
  z-index: 100;
  background: var(--color-white);
  border-bottom: 1px solid #e2e8f0;
  box-shadow: var(--shadow);
}

.navbar .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.9rem 0;
}

.navbar__brand {
  font-size: 1.35rem;
  font-weight: 700;
  color: var(--color-primary);
}
.navbar__brand:hover { color: var(--color-primary-dark); }

.navbar__links {
  display: flex;
  gap: 2rem;
}

.navbar__links a {
  font-weight: 500;
  color: var(--color-dark);
  padding: 0.25rem 0;
  border-bottom: 2px solid transparent;
  transition: border-color var(--transition), color var(--transition);
}
.navbar__links a:hover,
.navbar__links a.active {
  color: var(--color-primary);
  border-bottom-color: var(--color-primary);
}

/* Hamburger */
.navbar__toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
  background: none;
  border: none;
  padding: 4px;
}
.navbar__toggle span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--color-dark);
  border-radius: 2px;
  transition: transform var(--transition), opacity var(--transition);
}
.navbar__toggle.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.navbar__toggle.open span:nth-child(2) { opacity: 0; }
.navbar__toggle.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* =============================================
   Buttons
   ============================================= */
.btn {
  display: inline-block;
  padding: 0.65rem 1.5rem;
  border-radius: var(--radius);
  font-weight: 600;
  font-size: 0.95rem;
  cursor: pointer;
  border: 2px solid transparent;
  transition: background var(--transition), color var(--transition), border-color var(--transition);
}

.btn--primary {
  background: var(--color-primary);
  color: var(--color-white);
  border-color: var(--color-primary);
}
.btn--primary:hover {
  background: var(--color-primary-dark);
  border-color: var(--color-primary-dark);
  color: var(--color-white);
}

.btn--outline {
  background: transparent;
  color: var(--color-white);
  border-color: var(--color-white);
}
.btn--outline:hover {
  background: var(--color-white);
  color: var(--color-primary);
}

.btn--secondary {
  background: var(--color-secondary);
  color: var(--color-white);
  border-color: var(--color-secondary);
}
.btn--secondary:hover {
  background: #059669;
  border-color: #059669;
  color: var(--color-white);
}

.btn--primary-inverted {
  background: var(--color-white);
  color: var(--color-primary);
  border-color: var(--color-white);
}
.btn--primary-inverted:hover {
  background: var(--color-light-gray);
  border-color: var(--color-light-gray);
  color: var(--color-primary-dark);
}

.mt-sm { margin-top: 0.5rem; }

.hero {
  background: linear-gradient(135deg, var(--color-primary) 0%, #1e40af 60%, #1e293b 100%);
  color: var(--color-white);
  padding: 6rem 0 5rem;
  text-align: center;
}

.hero__tag {
  display: inline-block;
  background: rgba(255,255,255,0.15);
  color: var(--color-white);
  padding: 0.3rem 1rem;
  border-radius: 999px;
  font-size: 0.85rem;
  font-weight: 600;
  letter-spacing: 0.05em;
  margin-bottom: 1.5rem;
}

.hero__title {
  font-size: clamp(2rem, 5vw, 3.5rem);
  font-weight: 800;
  line-height: 1.15;
  margin-bottom: 1.25rem;
}

.hero__subtitle {
  font-size: clamp(1rem, 2.5vw, 1.25rem);
  opacity: 0.9;
  max-width: 600px;
  margin: 0 auto 2.5rem;
}

.hero__actions {
  display: flex;
  gap: 1rem;
  justify-content: center;
  flex-wrap: wrap;
}

/* =============================================
   Section Shared
   ============================================= */
.section {
  padding: 5rem 0;
}
.section--alt { background: var(--color-light-gray); }

.section__header {
  text-align: center;
  margin-bottom: 3rem;
}
.section__header h2 {
  font-size: clamp(1.6rem, 3.5vw, 2.25rem);
  font-weight: 700;
  margin-bottom: 0.75rem;
}
.section__header p {
  color: var(--color-gray);
  max-width: 560px;
  margin: 0 auto;
}

/* =============================================
   Features / Cards
   ============================================= */
.features {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 1.75rem;
}

.card {
  background: var(--color-white);
  border-radius: var(--radius);
  padding: 2rem;
  box-shadow: var(--shadow);
  transition: transform var(--transition), box-shadow var(--transition);
}
.card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
}

.card__icon {
  width: 52px;
  height: 52px;
  border-radius: var(--radius);
  background: var(--color-primary);
  color: var(--color-white);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  margin-bottom: 1.25rem;
}

.card h3 {
  font-size: 1.1rem;
  font-weight: 700;
  margin-bottom: 0.5rem;
}
.card p { color: var(--color-gray); font-size: 0.95rem; }

/* =============================================
   About Page
   ============================================= */
.about-intro {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
  align-items: center;
}

.about-intro__text h2 {
  font-size: clamp(1.5rem, 3vw, 2rem);
  font-weight: 700;
  margin-bottom: 1rem;
}
.about-intro__text p {
  color: var(--color-gray);
  margin-bottom: 1rem;
}

.about-intro__image {
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow-lg);
}
.about-intro__image img {
  width: 100%;
  height: 320px;
  object-fit: cover;
}
/* Placeholder image */
.img-placeholder {
  width: 100%;
  height: 320px;
  background: linear-gradient(135deg, var(--color-primary) 0%, #1e40af 100%);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-white);
  font-size: 4rem;
}

.values {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 1.5rem;
}

.value-item {
  text-align: center;
  padding: 1.75rem 1rem;
  border-radius: var(--radius);
  background: var(--color-white);
  box-shadow: var(--shadow);
}
.value-item__icon {
  font-size: 2.25rem;
  margin-bottom: 0.75rem;
}
.value-item h3 { font-size: 1.05rem; font-weight: 700; margin-bottom: 0.4rem; }
.value-item p { color: var(--color-gray); font-size: 0.9rem; }

.team {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 1.75rem;
}

.team-card {
  text-align: center;
  background: var(--color-white);
  border-radius: var(--radius);
  padding: 2rem 1.5rem;
  box-shadow: var(--shadow);
  transition: transform var(--transition), box-shadow var(--transition);
}
.team-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
}
.team-card__avatar {
  width: 96px;
  height: 96px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-secondary) 100%);
  color: var(--color-white);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 2.25rem;
  font-weight: 700;
  margin: 0 auto 1rem;
}
.team-card h3 { font-size: 1.05rem; font-weight: 700; }
.team-card__role {
  color: var(--color-primary);
  font-size: 0.85rem;
  font-weight: 600;
  margin: 0.25rem 0 0.6rem;
}
.team-card p { color: var(--color-gray); font-size: 0.88rem; }

/* =============================================
   Gallery Page
   ============================================= */
.filter-bar {
  display: flex;
  gap: 0.75rem;
  flex-wrap: wrap;
  justify-content: center;
  margin-bottom: 2.5rem;
}
.filter-btn {
  padding: 0.45rem 1.25rem;
  border-radius: 999px;
  border: 2px solid #e2e8f0;
  background: transparent;
  font-size: 0.9rem;
  font-weight: 600;
  cursor: pointer;
  color: var(--color-gray);
  transition: background var(--transition), color var(--transition), border-color var(--transition);
}
.filter-btn:hover,
.filter-btn.active {
  background: var(--color-primary);
  border-color: var(--color-primary);
  color: var(--color-white);
}

.gallery-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 1.5rem;
}

.gallery-item {
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow);
  background: var(--color-white);
  transition: transform var(--transition), box-shadow var(--transition);
}
.gallery-item:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
}
.gallery-item[hidden] { display: none; }

.gallery-item__thumb {
  width: 100%;
  height: 190px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 3.5rem;
  background: linear-gradient(135deg, var(--color-primary) 0%, #1e40af 100%);
  color: var(--color-white);
  position: relative;
}
.gallery-item__thumb--green {
  background: linear-gradient(135deg, var(--color-secondary) 0%, #059669 100%);
}
.gallery-item__thumb--purple {
  background: linear-gradient(135deg, #7c3aed 0%, #5b21b6 100%);
}
.gallery-item__thumb--orange {
  background: linear-gradient(135deg, #f59e0b 0%, #d97706 100%);
}

.gallery-item__body {
  padding: 1.25rem;
}
.gallery-item__body h3 {
  font-size: 1rem;
  font-weight: 700;
  margin-bottom: 0.35rem;
}
.gallery-item__body p {
  color: var(--color-gray);
  font-size: 0.88rem;
  margin-bottom: 1rem;
}
.gallery-item__meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 0.5rem;
}
.badge {
  padding: 0.2rem 0.65rem;
  border-radius: 999px;
  font-size: 0.75rem;
  font-weight: 700;
  background: var(--color-light-gray);
  color: var(--color-gray);
}
.badge--blue { background: #dbeafe; color: var(--color-primary); }
.badge--green { background: #d1fae5; color: #059669; }
.badge--purple { background: #ede9fe; color: #7c3aed; }
.badge--orange { background: #fef3c7; color: #d97706; }

.download-link {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--color-primary);
}
.download-link:hover { color: var(--color-primary-dark); }
.download-link svg { width: 16px; height: 16px; }

/* =============================================
   CTA Banner
   ============================================= */
.cta {
  background: linear-gradient(135deg, var(--color-primary) 0%, #1e40af 100%);
  color: var(--color-white);
  text-align: center;
  padding: 4rem 0;
}
.cta h2 { font-size: clamp(1.5rem, 3vw, 2rem); font-weight: 700; margin-bottom: 0.75rem; }
.cta p { opacity: 0.9; max-width: 500px; margin: 0 auto 2rem; }

/* =============================================
   Footer
   ============================================= */
.footer {
  background: var(--color-dark);
  color: #94a3b8;
  padding: 3rem 0 1.5rem;
}

.footer__grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  gap: 2.5rem;
  margin-bottom: 2.5rem;
}

.footer__brand {
  color: var(--color-white);
  font-size: 1.25rem;
  font-weight: 700;
  display: block;
  margin-bottom: 0.75rem;
}
.footer__col h4 {
  color: var(--color-white);
  font-size: 0.95rem;
  font-weight: 700;
  margin-bottom: 1rem;
}
.footer__col ul { display: flex; flex-direction: column; gap: 0.5rem; }
.footer__col ul a {
  color: #94a3b8;
  font-size: 0.9rem;
  transition: color var(--transition);
}
.footer__col ul a:hover { color: var(--color-white); }

.footer__bottom {
  border-top: 1px solid #334155;
  padding-top: 1.5rem;
  text-align: center;
  font-size: 0.85rem;
}

/* =============================================
   Page Hero (inner pages)
   ============================================= */
.page-hero {
  background: linear-gradient(135deg, var(--color-primary) 0%, #1e40af 100%);
  color: var(--color-white);
  padding: 4rem 0 3.5rem;
  text-align: center;
}
.page-hero h1 {
  font-size: clamp(1.75rem, 4vw, 2.75rem);
  font-weight: 800;
  margin-bottom: 0.75rem;
}
.page-hero p {
  opacity: 0.9;
  max-width: 520px;
  margin: 0 auto;
  font-size: 1.05rem;
}

/* =============================================
   Stats strip
   ============================================= */
.stats {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
  gap: 0;
  background: var(--color-primary);
  color: var(--color-white);
  text-align: center;
}
.stat-item {
  padding: 2rem 1rem;
  border-right: 1px solid rgba(255,255,255,0.15);
}
.stat-item:last-child { border-right: none; }
.stat-item__number {
  font-size: 2.25rem;
  font-weight: 800;
  display: block;
}
.stat-item__label {
  font-size: 0.85rem;
  opacity: 0.85;
  font-weight: 500;
}

/* =============================================
   Responsive
   ============================================= */
@media (max-width: 768px) {
  .navbar__links {
    display: none;
    flex-direction: column;
    gap: 0;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: var(--color-white);
    border-top: 1px solid #e2e8f0;
    box-shadow: var(--shadow);
    padding: 0.5rem 0;
  }
  .navbar__links.open { display: flex; }
  .navbar__links a {
    padding: 0.75rem 1.5rem;
    border-bottom: 1px solid #f1f5f9;
  }
  .navbar__toggle { display: flex; }
  .navbar { position: relative; }

  .about-intro {
    grid-template-columns: 1fr;
    gap: 2rem;
  }
  .about-intro__image { order: -1; }

  .footer__grid {
    grid-template-columns: 1fr;
    gap: 2rem;
  }

  .hero { padding: 4rem 0 3.5rem; }
}

@media (max-width: 480px) {
  .hero__actions { flex-direction: column; align-items: center; }
}