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

:root {
  --color-bg: #fafafa;
  --color-surface: #ffffff;
  --color-dark: #0a0f1a;
  --color-dark-surface: #111827;
  --color-text: #1f2937;
  --color-text-muted: #6b7280;
  --color-primary: #2563eb;
  --color-primary-dark: #1d4ed8;
  --color-accent: #06b6d4;
  --color-border: #e5e7eb;
  --font: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --radius: 12px;
  --radius-lg: 20px;
  --shadow-sm: 0 1px 3px rgba(0,0,0,0.06);
  --shadow-md: 0 4px 20px rgba(0,0,0,0.08);
  --shadow-lg: 0 12px 40px rgba(0,0,0,0.12);
  --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

html { scroll-behavior: smooth; }

body {
  font-family: var(--font);
  color: var(--color-text);
  background: var(--color-bg);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

img { max-width: 100%; height: auto; display: block; }
a { text-decoration: none; color: inherit; }
ul { list-style: none; }

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
}

/* === Navigation === */
.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  padding: 20px 0;
  transition: var(--transition);
}

.nav.scrolled {
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  padding: 12px 0;
  box-shadow: 0 1px 12px rgba(0,0,0,0.08);
}

.nav-container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.nav-brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 700;
  font-size: 1.1rem;
  color: #fff;
  transition: var(--transition);
}

.nav.scrolled .nav-brand { color: var(--color-dark); }

.nav-brand img {
  width: 36px;
  height: 36px;
  border-radius: 8px;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 8px;
}

.nav-links a {
  padding: 8px 16px;
  border-radius: 8px;
  font-size: 0.9rem;
  font-weight: 500;
  color: rgba(255,255,255,0.85);
  transition: var(--transition);
}

.nav.scrolled .nav-links a { color: var(--color-text-muted); }
.nav-links a:hover { color: #fff; background: rgba(255,255,255,0.1); }
.nav.scrolled .nav-links a:hover { color: var(--color-text); background: var(--color-bg); }

.nav-cta {
  background: var(--color-primary) !important;
  color: #fff !important;
  border-radius: 8px !important;
}

.nav-cta:hover {
  background: var(--color-primary-dark) !important;
  color: #fff !important;
}

.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px;
}

.nav-toggle span {
  width: 24px;
  height: 2px;
  background: #fff;
  border-radius: 2px;
  transition: var(--transition);
}

.nav.scrolled .nav-toggle span { background: var(--color-dark); }

/* === Hero === */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}

.hero-bg {
  position: absolute;
  inset: 0;
  background: url('../img/bg-masthead.jpg') center/cover no-repeat;
  z-index: 0;
}

.hero-bg::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(10, 15, 26, 0.85) 0%, rgba(37, 99, 235, 0.6) 100%);
}

.hero-content {
  position: relative;
  z-index: 1;
  text-align: center;
  max-width: 800px;
  padding: 0 24px;
}

.hero-badge {
  display: inline-block;
  padding: 6px 16px;
  background: rgba(255,255,255,0.12);
  backdrop-filter: blur(10px);
  border: 1px solid rgba(255,255,255,0.2);
  border-radius: 50px;
  color: #fff;
  font-size: 0.85rem;
  font-weight: 500;
  letter-spacing: 0.5px;
  margin-bottom: 24px;
}

.hero h1 {
  font-size: clamp(2.5rem, 6vw, 4.5rem);
  font-weight: 800;
  color: #fff;
  line-height: 1.1;
  margin-bottom: 24px;
  letter-spacing: -0.02em;
}

.gradient-text {
  background: linear-gradient(135deg, #60a5fa, #06b6d4);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-sub {
  font-size: 1.15rem;
  color: rgba(255,255,255,0.8);
  max-width: 600px;
  margin: 0 auto 40px;
  line-height: 1.7;
}

.hero-actions {
  display: flex;
  gap: 16px;
  justify-content: center;
  flex-wrap: wrap;
}

.hero-scroll {
  position: absolute;
  bottom: 32px;
  left: 50%;
  transform: translateX(-50%);
  z-index: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  color: rgba(255,255,255,0.5);
  font-size: 0.8rem;
  font-weight: 500;
  cursor: pointer;
  transition: var(--transition);
  animation: float 2s ease-in-out infinite;
}

.hero-scroll:hover { color: rgba(255,255,255,0.8); }

@keyframes float {
  0%, 100% { transform: translateX(-50%) translateY(0); }
  50% { transform: translateX(-50%) translateY(-8px); }
}

/* === Buttons === */
.btn {
  display: inline-flex;
  align-items: center;
  padding: 14px 28px;
  border-radius: 10px;
  font-size: 0.95rem;
  font-weight: 600;
  font-family: var(--font);
  cursor: pointer;
  transition: var(--transition);
  border: none;
}

.btn-primary {
  background: var(--color-primary);
  color: #fff;
  box-shadow: 0 4px 16px rgba(37, 99, 235, 0.3);
}

.btn-primary:hover {
  background: var(--color-primary-dark);
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(37, 99, 235, 0.4);
}

.btn-outline {
  background: transparent;
  color: #fff;
  border: 1.5px solid rgba(255,255,255,0.3);
}

.btn-outline:hover {
  background: rgba(255,255,255,0.1);
  border-color: rgba(255,255,255,0.6);
}

.btn-lg {
  padding: 18px 36px;
  font-size: 1.05rem;
}

/* === Section === */
.section {
  padding: 100px 0;
}

.section-dark {
  background: var(--color-dark);
  color: #fff;
}

.section-header {
  text-align: center;
  max-width: 600px;
  margin: 0 auto 64px;
}

.section-tag {
  display: inline-block;
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 1.5px;
  text-transform: uppercase;
  color: var(--color-primary);
  margin-bottom: 12px;
}

.section-dark .section-tag { color: var(--color-accent); }

.section-header h2 {
  font-size: clamp(2rem, 4vw, 2.8rem);
  font-weight: 800;
  letter-spacing: -0.02em;
  margin-bottom: 12px;
}

.section-header p {
  color: var(--color-text-muted);
  font-size: 1.1rem;
}

/* === Capabilities Grid === */
.capabilities-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 40px 32px;
  transition: var(--transition);
}

.card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-lg);
  border-color: transparent;
}

.card-icon {
  width: 64px;
  height: 64px;
  border-radius: 16px;
  background: linear-gradient(135deg, #eff6ff, #e0f2fe);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 24px;
  color: var(--color-primary);
}

.card h3 {
  font-size: 1.25rem;
  font-weight: 700;
  margin-bottom: 12px;
}

.card p {
  color: var(--color-text-muted);
  line-height: 1.7;
}

/* === Showcase === */
.showcase-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
  align-items: center;
  margin-bottom: 80px;
}

.showcase-row:last-child { margin-bottom: 0; }

.showcase-row.reverse .showcase-img { order: 2; }
.showcase-row.reverse .showcase-text { order: 1; }

.showcase-img {
  border-radius: var(--radius-lg);
  overflow: hidden;
}

.showcase-img img {
  width: 100%;
  height: 400px;
  object-fit: cover;
  border-radius: var(--radius-lg);
  transition: transform 0.5s ease;
}

.showcase-row:hover .showcase-img img {
  transform: scale(1.03);
}

.showcase-text h2 {
  font-size: clamp(1.6rem, 3vw, 2.2rem);
  font-weight: 800;
  margin-bottom: 16px;
  letter-spacing: -0.02em;
}

.showcase-text p {
  color: rgba(255,255,255,0.7);
  font-size: 1.05rem;
  line-height: 1.8;
}

/* === Team === */
.team-grid {
  display: flex;
  justify-content: center;
  gap: 40px;
  flex-wrap: wrap;
}

.team-card {
  text-align: center;
  max-width: 280px;
}

.team-img {
  width: 180px;
  height: 180px;
  border-radius: 50%;
  overflow: hidden;
  margin: 0 auto 24px;
  box-shadow: var(--shadow-md);
  border: 4px solid var(--color-surface);
}

.team-img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.team-card h3 {
  font-size: 1.2rem;
  font-weight: 700;
  margin-bottom: 4px;
}

.team-card p {
  color: var(--color-text-muted);
  font-weight: 500;
}

/* === CTA === */
.cta {
  position: relative;
  overflow: hidden;
}

.cta-bg {
  position: absolute;
  inset: 0;
  background: url('../img/bg-masthead.jpg') center/cover no-repeat;
  z-index: 0;
}

.cta-bg::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(10, 15, 26, 0.9) 0%, rgba(37, 99, 235, 0.7) 100%);
}

.cta-content {
  position: relative;
  z-index: 1;
  text-align: center;
  max-width: 650px;
  margin: 0 auto;
  color: #fff;
}

.cta-content h2 {
  font-size: clamp(2rem, 4vw, 3rem);
  font-weight: 800;
  margin-bottom: 16px;
  letter-spacing: -0.02em;
}

.cta-content p {
  color: rgba(255,255,255,0.8);
  font-size: 1.1rem;
  margin-bottom: 32px;
  line-height: 1.7;
}

/* === Footer === */
.footer {
  background: var(--color-dark);
  color: rgba(255,255,255,0.7);
  padding: 64px 0 32px;
}

.footer-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-bottom: 32px;
  border-bottom: 1px solid rgba(255,255,255,0.1);
  margin-bottom: 32px;
}

.footer-brand {
  display: flex;
  align-items: center;
  gap: 12px;
  font-weight: 700;
  font-size: 1rem;
  color: #fff;
}

.footer-brand img {
  width: 32px;
  height: 32px;
  border-radius: 8px;
}

.footer-links {
  display: flex;
  gap: 24px;
}

.footer-links a {
  font-size: 0.9rem;
  font-weight: 500;
  transition: var(--transition);
}

.footer-links a:hover { color: #fff; }

.footer-certs {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 32px;
  padding-bottom: 32px;
  margin-bottom: 32px;
  border-bottom: 1px solid rgba(255,255,255,0.1);
}

.footer-certs img {
  max-height: 50px;
  width: auto;
  border-radius: 6px;
  opacity: 0.8;
  transition: var(--transition);
}

.footer-certs img:hover { opacity: 1; }

.footer-bottom {
  text-align: center;
}

.footer-bottom p {
  font-size: 0.85rem;
  color: rgba(255,255,255,0.4);
}

/* === Animations === */
.animate-in {
  opacity: 0;
  transform: translateY(24px);
  animation: slideIn 0.7s ease forwards;
}

.delay-1 { animation-delay: 0.15s; }
.delay-2 { animation-delay: 0.3s; }
.delay-3 { animation-delay: 0.45s; }

@keyframes slideIn {
  to { opacity: 1; transform: translateY(0); }
}

.fade-up {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

.fade-up.visible {
  opacity: 1;
  transform: translateY(0);
}

/* === About/Capabilities Page === */
.page-header-section {
  padding-top: 140px;
}

.pdf-wrapper {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-md);
}

.pdf-wrapper object {
  display: block;
  border: none;
}

.pdf-fallback {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 80px 24px;
  text-align: center;
  color: var(--color-text-muted);
  gap: 16px;
}

/* === Responsive === */
@media (max-width: 1024px) {
  .capabilities-grid { grid-template-columns: repeat(2, 1fr); }
  .showcase-row { grid-template-columns: 1fr; gap: 32px; }
  .showcase-row.reverse .showcase-img { order: 0; }
  .showcase-row.reverse .showcase-text { order: 0; }
  .showcase-img img { height: 300px; }
}

@media (max-width: 768px) {
  .nav-toggle { display: flex; }
  .nav-links {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: var(--color-surface);
    flex-direction: column;
    padding: 16px 24px;
    box-shadow: var(--shadow-md);
    border-radius: 0 0 var(--radius) var(--radius);
  }
  .nav-links.active { display: flex; }
  .nav-links a { color: var(--color-text) !important; padding: 12px 16px; }
  .nav-links a:hover { background: var(--color-bg) !important; }

  .capabilities-grid { grid-template-columns: 1fr; }
  .section { padding: 72px 0; }
  .hero-scroll { display: none; }

  .footer-top { flex-direction: column; gap: 24px; text-align: center; }
  .footer-certs { gap: 20px; flex-wrap: wrap; }
}