/* ===== ROOT (DARK MODE – DEFAULT) ===== */
:root {
  --bg-body:    #0a0a12;
  --bg-card:    #14141e;
  --bg-surface: #1c1c2a;
  --text-heading: #ffffff;
  --text-body:    #d1d5db;
  --text-muted:   #9ca3af;
  --border-color: #2a2a3a;

  --accent-cyan: #00f0ff;
  --accent-pink: #ff2d95;
  --accent-blue: #3b82f6;

  --glow-cyan-text: 0 0 10px #00f0ff;
  --glow-pink-text: 0 0 10px #ff2d95;
  --glow-cyan-box:       0 0 15px rgba(0, 240, 255, 0.3);
  --glow-cyan-box-hover: 0 0 25px rgba(0, 240, 255, 0.6);

  --border-neon:       1px solid rgba(0, 240, 255, 0.2);
  --border-neon-hover: 1px solid rgba(0, 240, 255, 0.6);

  --font-heading: 'Orbitron', sans-serif;
  --font-body:    'Inter', sans-serif;

  --spacing-section: 4rem 1.5rem;
  --spacing-card:    1.5rem;
  --max-width: 1200px;
}

/* Base Styles */
* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

body {
  font-family: var(--font-body);
  background:
    radial-gradient(ellipse at 15% 20%, rgba(0, 240, 255, 0.08) 0%, transparent 60%),
    radial-gradient(ellipse at 85% 80%, rgba(255, 45, 149, 0.06) 0%, transparent 60%),
    #0a0a12;
  background-attachment: fixed;
  color: var(--text-body);
  line-height: 1.6;
  overflow-x: hidden;
  transition: background 0.4s ease, color 0.4s ease;
}

h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-heading);
  color: var(--text-heading);
  font-weight: 700;
  margin-bottom: 1rem;
  line-height: 1.2;
}

.neon-text {
  text-shadow: var(--glow-cyan-text);
  color: var(--accent-cyan);
}
.neon-text-pink {
  text-shadow: var(--glow-pink-text);
  color: var(--accent-pink);
}

p {
  margin-bottom: 1rem;
}

a {
  color: var(--accent-cyan);
  text-decoration: none;
  transition: all 0.3s ease;
}

a:hover {
  text-shadow: var(--glow-cyan-text);
}

img {
  max-width: 100%;
  height: auto;
  border-radius: 12px;
  display: block;
}

/* Layout Utilities */
.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 1.5rem;
}

.section {
  padding: var(--spacing-section);
  animation: fadeIn 0.8s ease-out forwards;
}

.grid {
  display: grid;
  gap: 2rem;
}

.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-2 { grid-template-columns: repeat(2, 1fr); }

.flex { display: flex; }
.flex-center { display: flex; align-items: center; justify-content: center; }
.flex-between { display: flex; align-items: center; justify-content: space-between; }
.flex-wrap { flex-wrap: wrap; }

.text-center { text-align: center; }
.mt-2 { margin-top: 2rem; }
.mb-2 { margin-bottom: 2rem; }
.mb-1 { margin-bottom: 1rem; }

/* Components */
.card {
  background: rgba(20, 20, 30, 0.7);
  backdrop-filter: blur(5px);
  -webkit-backdrop-filter: blur(5px);
  border: var(--border-neon);
  border-radius: 12px;
  padding: var(--spacing-card);
  box-shadow: var(--glow-cyan-box);
  transition: transform 0.3s, box-shadow 0.3s, border-color 0.3s;
  height: 100%;
}

.card:hover {
  transform: translateY(-5px);
  box-shadow: var(--glow-cyan-box-hover);
  border: var(--border-neon-hover);
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  background: linear-gradient(135deg, var(--accent-cyan), var(--accent-pink));
  color: #0A0A0F !important;
  padding: 0.8rem 1.8rem;
  border-radius: 8px;
  font-family: var(--font-heading);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  border: none;
  cursor: pointer;
  transition: transform 0.2s, box-shadow 0.2s;
  box-shadow: var(--glow-cyan-box);
}

.btn:hover {
  transform: scale(1.05);
  box-shadow: var(--glow-cyan-box-hover);
  text-shadow: none;
}

.btn-outline {
  background: transparent;
  color: var(--text-heading) !important;
  border: var(--border-neon);
}

.pill {
  display: inline-block;
  background: rgba(0, 240, 255, 0.1);
  color: var(--accent-cyan);
  border: 1px solid var(--accent-cyan);
  padding: 0.3rem 1rem;
  border-radius: 999px;
  font-size: 0.85rem;
  font-weight: 600;
  margin-bottom: 1rem;
  box-shadow: 0 0 5px rgba(0,240,255,0.2);
}

/* Navbar */
.navbar {
  background-color: rgba(10, 10, 15, 0.8);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border-bottom: var(--border-neon);
  position: fixed;
  top: 0;
  width: 100%;
  z-index: 1000;
  padding: 1rem 0;
}

.nav-content {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.nav-logo {
  font-family: var(--font-heading);
  font-size: 1.5rem;
  font-weight: 900;
  color: var(--accent-cyan);
  text-transform: uppercase;
  letter-spacing: 2px;
  text-shadow: var(--glow-cyan-text);
  display: flex;
  align-items: center;
  gap: 8px;
}

.nav-links {
  display: flex;
  gap: 1.5rem;
  align-items: center;
}

.nav-links a {
  color: var(--text-heading);
  font-weight: 500;
  font-size: 0.95rem;
  position: relative;
}

.nav-links a:hover {
  color: var(--accent-cyan);
}

/* Hover underline effect */
.nav-links a::after {
  content: '';
  position: absolute;
  width: 0;
  height: 2px;
  bottom: -4px;
  left: 0;
  background-color: var(--accent-cyan);
  transition: width 0.3s;
  box-shadow: var(--glow-cyan-text);
}

.nav-links a:hover::after {
  width: 100%;
}

.nav-toggle {
  display: none;
  background: none;
  border: none;
  color: var(--accent-cyan);
  font-size: 1.5rem;
  cursor: pointer;
  filter: drop-shadow(0 0 4px #00F0FF);
}

/* Hero Section */
.hero {
  padding: 10rem 1.5rem 6rem;
  text-align: center;
  background: radial-gradient(circle at 50% 30%, rgba(0, 240, 255, 0.05), transparent 70%);
  border-bottom: var(--border-neon);
  position: relative;
}

.hero h1 {
  font-size: clamp(2.5rem, 6vw, 5rem);
  margin-bottom: 1.5rem;
}

.hero p {
  font-size: 1.2rem;
  color: var(--text-body);
  margin: 0 auto 2.5rem;
  max-width: 800px;
}

.pulse {
  animation: pulse 2s infinite;
}

/* Footer */
.footer {
  background-color: #050508;
  border-top: var(--border-neon);
  padding: 4rem 1.5rem 2rem;
  margin-top: 4rem;
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 2rem;
  margin-bottom: 3rem;
}

.footer-heading {
  color: var(--text-heading);
  font-size: 1.1rem;
  margin-bottom: 1.2rem;
  font-family: var(--font-heading);
  text-shadow: var(--glow-cyan-text);
}

.footer-links {
  list-style: none;
}

.footer-links li {
  margin-bottom: 0.8rem;
}

.footer-links a {
  color: var(--text-muted);
  font-size: 0.95rem;
}

.footer-links a:hover {
  color: var(--accent-cyan);
  text-shadow: var(--glow-cyan-text);
}

.footer-bottom {
  border-top: 1px solid rgba(255,255,255,0.05);
  padding-top: 2rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.9rem;
  color: var(--text-muted);
}

/* Lucide Icons */
.lucide {
  stroke: var(--accent-cyan);
  filter: drop-shadow(0 0 4px #00F0FF);
  width: 24px;
  height: 24px;
  vertical-align: middle;
}

.icon-pink .lucide {
  stroke: var(--accent-pink);
  filter: drop-shadow(0 0 4px #FF2D95);
}

.icon-green .lucide {
  stroke: #25D366;
  filter: drop-shadow(0 0 4px #25D366);
}

/* Animations */
@keyframes fadeIn {
  from { opacity: 0; transform: translateY(20px); }
  to { opacity: 1; transform: translateY(0); }
}

@keyframes pulse {
  0% { transform: scale(1); box-shadow: var(--glow-cyan-box); }
  50% { transform: scale(1.05); box-shadow: var(--glow-cyan-box-hover); }
  100% { transform: scale(1); box-shadow: var(--glow-cyan-box); }
}

/* Responsive */
@media (max-width: 1024px) {
  .grid-3 { grid-template-columns: repeat(2, 1fr); }
  .footer-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 767px) {
  .grid-3, .grid-2 { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; text-align: center; }
  .footer-bottom { flex-direction: column; gap: 1rem; text-align: center; }
  
  .nav-links {
    display: none;
    flex-direction: column;
    position: absolute;
    top: 100%;
    left: 0;
    width: 100%;
    background-color: rgba(10, 10, 15, 0.95);
    padding: 1.5rem;
    border-bottom: var(--border-neon);
  }
  
  .nav-links.active {
    display: flex;
  }
  
  .nav-toggle {
    display: block;
  }
  
  .hero { padding: 8rem 1.5rem 4rem; }
}

/* Tables */
table {
  width: 100%;
  border-collapse: collapse;
  margin: 2rem 0;
  background: var(--bg-card);
  border-radius: 12px;
  overflow: hidden;
  border: var(--border-neon);
  box-shadow: var(--glow-cyan-box);
}
th, td {
  padding: 1rem;
  text-align: left;
  border-bottom: 1px solid rgba(255,255,255,0.05);
}
th {
  background: rgba(0, 240, 255, 0.1);
  color: var(--accent-cyan);
  font-family: var(--font-heading);
}
tr:last-child td {
  border-bottom: none;
}