/* ============================================
   NATIONAL AI EXPO 2070 — Global Stylesheet
   ============================================ */

:root {
  --cyan:    #9587ff;
  --blue:    #4e63a8;
  --green:   #00ff88;
  --dark:    #010712;
  --dark2:   #030e1f;
  --mid:     #071a35;
  --text:    #c8deff;
  --border:  rgba(0,245,255,0.12);
  --header-h: 70px;
  --font-display: 'Orbitron', monospace;
  --font-body:    'Exo 2', sans-serif;
}

/* ── RESET ── */
*, *::before, *::after { margin:0; padding:0; box-sizing:border-box; }
html { scroll-behavior: smooth; font-size: 16px; }
body {
  background: var(--dark);
  font-family: var(--font-body);
  color: var(--text);
  overflow-x: hidden;
  padding-top: var(--header-h);
}
a { color: inherit; text-decoration: none; }
ul { list-style: none; }
img { display: block; max-width: 100%; }

/* Grid scanline bg */
body::before {
  content: '';
  position: fixed; inset: 0; z-index: 0; pointer-events: none;
  background-image:
    linear-gradient(rgba(0,245,255,0.035) 1px, transparent 1px),
    linear-gradient(90deg, rgba(0,245,255,0.035) 1px, transparent 1px);
  background-size: 60px 60px;
}
body::after {
  content: '';
  position: fixed; inset: 0; z-index: 0; pointer-events: none;
  background: repeating-linear-gradient(
    0deg, transparent, transparent 2px,
    rgba(0,0,0,0.025) 2px, rgba(0,0,0,0.025) 4px
  );
}

/* ============================================
   LOADER
   ============================================ */
#loader {
  position: fixed; inset: 0; z-index: 9999;
  background: var(--dark);
  display: flex; flex-direction: column;
  align-items: center; justify-content: center;
  transition: opacity 0.9s ease, visibility 0.9s ease;
}
#loader.hidden { opacity: 0; visibility: hidden; }

.loader-ring {
  width: 88px; height: 88px; border-radius: 50%;
  border: 3px solid transparent;
  border-top-color: var(--cyan);
  border-right-color: var(--blue);
  animation: spin 1.1s linear infinite;
  box-shadow: 0 0 24px rgba(0,245,255,0.35), inset 0 0 20px rgba(0,245,255,0.07);
  position: relative;
}
.loader-ring::after {
  content: '';
  position: absolute; inset: 9px; border-radius: 50%;
  border: 2px solid transparent;
  border-bottom-color: var(--green);
  animation: spin 0.65s linear infinite reverse;
}
.loader-text {
  margin-top: 26px;
  font-family: var(--font-display);
  font-size: 11px; letter-spacing: 4px; color: var(--cyan);
  animation: blink 1.4s ease-in-out infinite;
}
.loader-progress {
  margin-top: 18px;
  width: 210px; height: 2px;
  background: rgba(0,245,255,0.1); border-radius: 2px; overflow: hidden;
}
.loader-bar {
  height: 100%;
  background: linear-gradient(90deg, var(--blue), var(--cyan), var(--green));
  width: 0; animation: loadbar 2.3s ease-in-out forwards;
}
@keyframes spin    { to { transform: rotate(360deg); } }
@keyframes blink   { 0%,100%{opacity:.35} 50%{opacity:1} }
@keyframes loadbar { to { width: 100%; } }

/* ============================================
   HEADER
   ============================================ */
.site-header {
  position: fixed; top: 0; left: 0; right: 0; z-index: 500;
  height: var(--header-h);
  background: rgba(1,7,18,0.88);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--border);
  transition: background 0.3s;
  padding-top: 10px;
  padding-bottom: 10px;
}
.site-header.scrolled {
  background: rgba(1,7,18,0.97);
  box-shadow: 0 2px 30px rgba(0,0,0,0.5);
}

.nav-inner {
  max-width: 1400px; margin: 0 auto;
  height: var(--header-h);
  display: flex; align-items: center; justify-content: space-between;
  padding: 0 48px;
}

/* ── Logo ── */
.nav-logo {
  display: flex; align-items: center; gap: 10px;
  flex-shrink: 0;
}
.logo-icon svg { display: block; }
.logo-text {
  display: flex; flex-direction: column; line-height: 1;
}
.logo-national {
  font-family: var(--font-display);
  font-size: 8px; font-weight: 600;
  letter-spacing: 3px; color: rgba(200,222,255,0.55);
}
.logo-expo {
  font-family: var(--font-display);
  font-size: 18px; font-weight: 900;
  color: #fff; display: flex; align-items: center; gap: 4px;
  margin-top: 2px;
}
.expo-lines {
  display: flex; flex-direction: column; gap: 3px;
  padding: 0 3px;
}
.expo-lines span {
  display: block; height: 2px; width: 18px;
}
.expo-lines span:nth-child(1) { background: var(--blue); }
.expo-lines span:nth-child(2) { background: var(--cyan); width: 14px; }
.expo-lines span:nth-child(3) { background: var(--green); width: 10px; }

/* ── Nav Links ── */
.nav-links {
  display: flex; align-items: center; gap: 8px;
}
.nav-links a {
  font-family: var(--font-display);
  font-size: 10.5px; font-weight: 600;
  letter-spacing: 2px; color: rgba(200,222,255,0.65);
  padding: 6px 14px;
  transition: color 0.2s;
  position: relative;
}
.nav-links a::after {
  content: '';
  position: absolute; bottom: 0; left: 14px; right: 14px;
  height: 1px; background: var(--cyan);
  transform: scaleX(0); transition: transform 0.25s;
}
.nav-links a:hover,
.nav-links a.active { color: #fff; }
.nav-links a:hover::after,
.nav-links a.active::after { transform: scaleX(1); }

/* CTA button */
.nav-links a.nav-cta {
  color: var(--cyan);
  border: 1px solid var(--cyan);
  padding: 8px 20px; margin-left: 12px;
  position: relative; overflow: hidden;
  letter-spacing: 1.5px;
  transition: color 0.3s;
}
.nav-links a.nav-cta::before {
  content: '';
  position: absolute; inset: 0;

  transform: translateX(-101%);
  transition: transform 0.3s;
  z-index: -1;
}
.nav-links a.nav-cta::after { display: none; }
.nav-links a.nav-cta:hover {  background: var(--cyan); color: var(--dark); }
.nav-links a.nav-cta:hover::before { transform: translateX(0); }
.nav-links a.nav-cta.active {
  background: rgba(0,245,255,0.08);
}

/* ── Hamburger ── */
.hamburger {
  display: none; flex-direction: column; gap: 5px;
  background: none; border: none; cursor: pointer;
  padding: 8px;
}
.hamburger span {
  display: block; width: 24px; height: 2px;
  background: var(--cyan);
  transition: transform 0.3s, opacity 0.3s;
}
.hamburger.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.hamburger.open span:nth-child(2) { opacity: 0; }
.hamburger.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* ── Mobile Menu ── */
.mobile-menu {
  display: none;
  background: rgba(1,7,18,0.97);
  border-bottom: 1px solid var(--border);
  padding: 0;
  max-height: 0; overflow: hidden;
  transition: max-height 0.4s ease, padding 0.3s;
}
.mobile-menu.open {
  max-height: 400px;
  padding: 16px 0 24px;
}
.mobile-menu ul { display: flex; flex-direction: column; }
.mobile-menu li a {
  display: block;
  font-family: var(--font-display);
  font-size: 11px; letter-spacing: 2.5px;
  color: rgba(200,222,255,0.7);
  padding: 14px 32px;
  border-bottom: 1px solid rgba(0,245,255,0.05);
  transition: color 0.2s, background 0.2s;
}
.mobile-menu li a:hover { color: var(--cyan); background: rgba(0,245,255,0.04); }
.mobile-menu li a.mobile-cta {
  color: var(--cyan); margin: 16px 32px 0;
  border: 1px solid var(--cyan);
  border-bottom: 1px solid var(--cyan);
  text-align: center; padding: 12px;
}

/* ============================================
   MAIN CONTENT
   ============================================ */
#main-content {
  position: relative; z-index: 1;
  min-height: calc(100vh - var(--header-h));
}

/* ── Shared page hero ── */
.page-hero {
  padding: 80px 60px 60px;
  border-bottom: 1px solid var(--border);
  background: linear-gradient(180deg, rgba(0,102,255,0.06) 0%, transparent 100%);
}
.page-hero .page-tag {
  font-family: var(--font-display);
  font-size: 10px; letter-spacing: 4px; color: var(--green);
  display: flex; align-items: center; gap: 10px;
  margin-bottom: 16px;
}
.page-hero .page-tag::before { content:''; width:24px; height:1px; background:var(--green); }
.page-hero h1 {
  font-family: var(--font-display);
  font-size: clamp(28px,4vw,56px); font-weight: 900;
  color: #fff; line-height: 1.1;
}
.page-hero h1 span { color: var(--cyan); }

/* ── Container ── */
.container {
  max-width: 1200px; margin: 0 auto;
  padding: 0 48px;
}
.section { padding: 80px 0; }

/* ── Utility ── */
.text-cyan  { color: var(--cyan); }
.text-green { color: var(--green); }
.text-muted { color: rgba(200,222,255,0.5); }

.clip-box {
  clip-path: polygon(0 0, calc(100% - 18px) 0, 100% 18px, 100% 100%, 18px 100%, 0 calc(100% - 18px));
}

.fade-in { opacity:0; transform:translateY(24px); transition: opacity .7s ease, transform .7s ease; }
.fade-in.visible { opacity:1; transform:translateY(0); }

/* ============================================
   FOOTER
   ============================================ */
.site-footer {
  position: relative; z-index: 1;
  background: rgba(1,7,18,0.95);
  border-top: 1px solid var(--border);
  padding: 70px 48px 0;
}
.footer-inner {
  max-width: 1400px; margin: 0 auto;
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1.2fr;
  gap: 48px;
  padding-bottom: 56px;
  border-bottom: 1px solid rgba(0,245,255,0.07);
}
.footer-logo {
  font-family: var(--font-display);
  font-size: 18px; font-weight: 900; color: #fff;
  display: inline-block; margin-bottom: 12px;
}
.footer-logo span { color: var(--cyan); }
.footer-tagline {
  font-family: var(--font-display);
  font-size: 9px; letter-spacing: 4px;
  color: rgba(200,222,255,0.35); margin-bottom: 8px;
}
.footer-location {
  font-size: 12px; color: rgba(200,222,255,0.4); letter-spacing: 0.5px;
}
.footer-col-title {
  font-family: var(--font-display);
  font-size: 9px; letter-spacing: 3px; font-weight: 600;
  color: rgba(200,222,255,0.35);
  margin-bottom: 18px;
  padding-bottom: 10px;
  border-bottom: 1px solid rgba(0,245,255,0.1);
}
.footer-col ul li { margin-bottom: 10px; }
.footer-col ul li a {
  font-size: 13px; color: rgba(200,222,255,0.55);
  transition: color 0.2s;
}
.footer-col ul li a:hover { color: var(--cyan); }
.footer-contact li {
  font-size: 13px; color: rgba(200,222,255,0.5);
  margin-bottom: 10px; line-height: 1.5;
}
.footer-social {
  display: flex; gap: 10px; margin-top: 18px;
}
.footer-social a {
  width: 36px; height: 36px;
  border: 1px solid rgba(0,245,255,0.15);
  display: flex; align-items: center; justify-content: center;
  font-size: 13px; color: rgba(200,222,255,0.5);
  transition: border-color 0.2s, color 0.2s;
}
.footer-social a:hover { border-color: var(--cyan); color: var(--cyan); }
.footer-bottom {
  max-width: 1400px; margin: 0 auto;
  display: flex; align-items: center; justify-content: space-between;
  padding: 20px 0;
  font-size: 11px; color: rgba(200,222,255,0.25);
  font-family: var(--font-display); letter-spacing: 1px;
  flex-wrap: wrap; gap: 12px;
}
.footer-bottom-links { display:flex; gap:24px; }
.footer-bottom-links a { color: rgba(200,222,255,0.25); transition: color 0.2s; }
.footer-bottom-links a:hover { color: var(--cyan); }

/* ============================================
   RESPONSIVE
   ============================================ */
@media (max-width: 1024px) {
  .nav-inner { padding: 0 28px; }
  .nav-links a { font-size: 9.5px; padding: 6px 10px; letter-spacing: 1.5px; }
  .footer-inner { grid-template-columns: 1fr 1fr; gap: 36px; }
}

@media (max-width: 768px) {
  .nav-links { display: none; }
  .hamburger { display: flex; }
  .mobile-menu { display: block; }
  .nav-inner { padding: 0 20px; }
  .page-hero { padding: 60px 24px 40px; }
  .container { padding: 0 24px; }
  .footer-inner {
    grid-template-columns: 1fr 1fr; gap: 32px;
    padding-bottom: 40px;
  }
  .site-footer { padding: 48px 24px 0; }
}

@media (max-width: 480px) {
  .footer-inner { grid-template-columns: 1fr; }
  .footer-bottom { flex-direction: column; text-align: center; }
  .footer-bottom-links { justify-content: center; }
}

.nav-logo {
  display: flex;
  align-items: center;
  text-decoration: none;
}

.logo-icon img {
  width: auto;
  height: 60px;
  object-fit: contain;
}

.footer-logo img {
  width: 160px;   /* adjust as needed */
  height: auto;
  display: block;
}

.footer-logo {
  display: inline-block;
  margin-bottom: 10px;
}

.footer-logo img {
  width: 160px;
  height: auto;
  
}