/* ===========================
   LABORATORY OF EDUCATIONAL GAMES
   Light Mode — Logo Colors:
   Orange:  #E8521A
   Teal:    #4DB8B8
   Navy:    #1E3A5F
   BG:      #F5F7FA
   =========================== */

@import url('https://fonts.googleapis.com/css2?family=Orbitron:wght@400;500;700;900&family=Rajdhani:wght@300;400;500;600;700&family=Inter:wght@300;400;500;600;700&display=swap');

:root {
  --orange:        #E8521A;
  --orange-light:  #F07040;
  --orange-pale:   #FEF0EB;
  --orange-glow:   rgba(232, 82, 26, 0.2);

  --teal:          #4DB8B8;
  --teal-light:    #72CECE;
  --teal-pale:     #EAF7F7;
  --teal-glow:     rgba(77, 184, 184, 0.25);

  --navy:          #1E3A5F;
  --navy-mid:      #274D7A;
  --navy-light:    #3A6A9A;

  --white:         #FFFFFF;
  --bg:            #F5F7FA;
  --bg-alt:        #EDF0F5;
  --surface:       #FFFFFF;

  --text-dark:     #1E3A5F;
  --text-mid:      #3A5070;
  --text-muted:    #7A90A8;

  --border:        rgba(30, 58, 95, 0.1);
  --border-orange: rgba(232, 82, 26, 0.2);
  --border-teal:   rgba(77, 184, 184, 0.25);

  --shadow-sm:     0 2px 8px rgba(30,58,95,0.07);
  --shadow-md:     0 6px 24px rgba(30,58,95,0.1);
  --shadow-lg:     0 16px 48px rgba(30,58,95,0.13);
  --shadow-orange: 0 8px 30px rgba(232,82,26,0.22);
  --shadow-teal:   0 8px 30px rgba(77,184,184,0.22);
}

* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }

body {
  font-family: 'Inter', sans-serif;
  background: var(--bg);
  color: var(--text-dark);
  overflow-x: hidden;
}

/* ---- SCROLLBAR ---- */
::-webkit-scrollbar { width: 6px; }
::-webkit-scrollbar-track { background: var(--bg-alt); }
::-webkit-scrollbar-thumb { background: var(--orange); border-radius: 3px; }

/* ---- NAVBAR ---- */
.navbar {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 1000;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 5%;
  height: 70px;
  background: rgba(255,255,255,0.96);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
  box-shadow: var(--shadow-sm);
}

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

.nav-logo-img {
  height: 44px;
  width: auto;
  object-fit: contain;
  display: block;
}

.nav-links {
  display: flex;
  list-style: none;
  gap: 4px;
  align-items: center;
}

.nav-links a {
  font-family: 'Inter', sans-serif;
  font-weight: 600;
  font-size: 14px;
  color: var(--text-mid);
  text-decoration: none;
  padding: 8px 16px;
  border-radius: 8px;
  transition: all 0.25s ease;
}

.nav-links a:hover,
.nav-links a.active {
  color: var(--orange);
  background: var(--orange-pale);
}

.nav-cta {
  background: linear-gradient(135deg, var(--orange), var(--orange-light)) !important;
  color: white !important;
  border-radius: 8px !important;
  box-shadow: var(--shadow-orange) !important;
  padding: 9px 20px !important;
}
.nav-cta:hover {
  transform: translateY(-1px);
  box-shadow: 0 12px 35px rgba(232,82,26,0.35) !important;
  background: linear-gradient(135deg, var(--orange), var(--orange-light)) !important;
}

.hamburger { display: none; flex-direction: column; gap: 5px; cursor: pointer; padding: 5px; }
.hamburger span { width: 25px; height: 2px; background: var(--navy); border-radius: 2px; transition: all 0.3s; }

/* ---- BUTTONS ---- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 13px 30px;
  border-radius: 10px;
  font-family: 'Inter', sans-serif;
  font-weight: 700;
  font-size: 15px;
  letter-spacing: 0.3px;
  text-decoration: none;
  border: none;
  cursor: pointer;
  transition: all 0.25s ease;
}

.btn-primary {
  background: linear-gradient(135deg, var(--orange), var(--orange-light));
  color: white;
  box-shadow: var(--shadow-orange);
}
.btn-primary:hover { transform: translateY(-2px); box-shadow: 0 12px 35px rgba(232,82,26,0.35); }

.btn-outline {
  background: transparent;
  color: var(--navy);
  border: 2px solid var(--teal);
}
.btn-outline:hover { background: var(--teal); color: white; transform: translateY(-2px); box-shadow: var(--shadow-teal); }

/* ---- SECTION HEADERS ---- */
.section-tag {
  display: inline-block;
  font-family: 'Inter', sans-serif;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 2px;
  text-transform: uppercase;
  color: var(--orange);
  background: var(--orange-pale);
  border: 1px solid var(--border-orange);
  padding: 5px 14px;
  border-radius: 20px;
  margin-bottom: 14px;
}

.section-title {
  font-family: 'Orbitron', sans-serif;
  font-size: clamp(24px, 3.5vw, 40px);
  font-weight: 900;
  line-height: 1.2;
  color: var(--navy);
  margin-bottom: 14px;
}
.section-title span { color: var(--orange); }

.section-subtitle {
  font-family: 'Inter', sans-serif;
  font-size: 15px;
  color: var(--text-mid);
  line-height: 1.7;
  max-width: 600px;
}

/* ---- CARDS ---- */
.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 16px;
  overflow: hidden;
  transition: all 0.3s ease;
  box-shadow: var(--shadow-sm);
}
.card:hover {
  transform: translateY(-6px);
  border-color: var(--border-orange);
  box-shadow: var(--shadow-orange);
}

/* ---- DECORATIVE ---- */
.grid-bg {
  position: absolute; inset: 0;
  background-image:
    linear-gradient(rgba(30,58,95,0.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(30,58,95,0.04) 1px, transparent 1px);
  background-size: 50px 50px;
  pointer-events: none;
}

.orb {
  position: absolute;
  border-radius: 50%;
  filter: blur(70px);
  pointer-events: none;
}
.orb-orange { background: radial-gradient(circle, rgba(232,82,26,0.15) 0%, transparent 70%); }
.orb-teal   { background: radial-gradient(circle, rgba(77,184,184,0.15) 0%, transparent 70%); }
.orb-navy   { background: radial-gradient(circle, rgba(30,58,95,0.10) 0%, transparent 70%); }

/* ---- BADGES ---- */
.badge {
  display: inline-block;
  padding: 3px 10px;
  border-radius: 20px;
  font-family: 'Inter', sans-serif;
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 0.5px;
  text-transform: uppercase;
}
.badge-orange { background: var(--orange); color: white; }
.badge-teal   { background: var(--teal);   color: white; }
.badge-blue   { background: var(--navy);   color: white; }
.badge-green  { background: #0EA880;       color: white; }

/* ---- STARS ---- */
.stars { color: #F59E0B; font-size: 13px; letter-spacing: 1px; }

/* ---- DIVIDER WAVE ---- */
.section-wave {
  background: var(--bg-alt);
}

/* ---- FOOTER ---- */
footer {
  background: var(--navy);
  border-top: 4px solid var(--orange);
  padding: 60px 5% 30px;
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 50px;
  margin-bottom: 50px;
}

.footer-brand .logo-text {
  font-family: 'Orbitron', sans-serif;
  font-size: 15px;
  font-weight: 800;
  color: white;
  margin-bottom: 2px;
}
.footer-brand .logo-text span { color: var(--orange); }
.footer-brand .logo-sub-footer {
  font-family: 'Inter', sans-serif;
  font-size: 11px;
  color: var(--teal);
  margin-bottom: 14px;
  display: block;
  letter-spacing: 0.3px;
}
.footer-brand p {
  font-family: 'Inter', sans-serif;
  color: rgba(255,255,255,0.55);
  font-size: 13px;
  line-height: 1.7;
  margin-bottom: 20px;
}

.social-links { display: flex; gap: 8px; }
.social-link {
  width: 36px; height: 36px;
  background: rgba(255,255,255,0.07);
  border: 1px solid rgba(255,255,255,0.1);
  border-radius: 8px;
  display: flex; align-items: center; justify-content: center;
  color: rgba(255,255,255,0.6);
  font-size: 14px;
  text-decoration: none;
  transition: all 0.25s;
}
.social-link:hover { background: var(--orange); color: white; border-color: var(--orange); }

.footer-col h4 {
  font-family: 'Inter', sans-serif;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 2px;
  color: var(--teal);
  text-transform: uppercase;
  margin-bottom: 18px;
}
.footer-col ul { list-style: none; }
.footer-col ul li { margin-bottom: 10px; }
.footer-col ul li a {
  font-family: 'Inter', sans-serif;
  color: rgba(255,255,255,0.55);
  font-size: 13px;
  text-decoration: none;
  transition: color 0.25s;
}
.footer-col ul li a:hover { color: var(--orange); }

.footer-bottom {
  border-top: 1px solid rgba(255,255,255,0.08);
  padding-top: 24px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 10px;
}
.footer-bottom p { font-family: 'Inter', sans-serif; color: rgba(255,255,255,0.35); font-size: 13px; }
.footer-bottom span { color: var(--orange); }

/* ---- ANIMATIONS ---- */
@keyframes float {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-10px); }
}
@keyframes pulse-glow {
  0%, 100% { box-shadow: 0 0 8px var(--orange-glow); }
  50% { box-shadow: 0 0 22px var(--orange-glow); }
}
@keyframes slideUp {
  from { opacity: 0; transform: translateY(24px); }
  to   { opacity: 1; transform: translateY(0); }
}

.reveal.visible { opacity: 1 !important; transform: translateY(0) !important; }

/* ---- RESPONSIVE ---- */
@media (max-width: 900px) {
  .footer-grid { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 640px) {
  .nav-links {
    display: none; flex-direction: column;
    position: absolute; top: 70px; left: 0; right: 0;
    background: white; padding: 16px;
    border-bottom: 1px solid var(--border);
    box-shadow: var(--shadow-md);
  }
  .nav-links.open { display: flex; }
  .hamburger { display: flex; }
  .footer-grid { grid-template-columns: 1fr; gap: 28px; }
  .footer-bottom { flex-direction: column; text-align: center; }
}