/* ── Nucleus Landing Page Styles ── */

/* ── Fonts & Variables ── */
:root {
  --bg-dark: #050505;
  --primary: #3b82f6;
  --secondary: #a855f7;
  --accent: #f59e0b;
  --success: #059669;
  --text-main: #ffffff;
  --text-dim: #94a3b8;
  --glass-bg: rgba(255, 255, 255, 0.05);
  --glass-border: rgba(255, 255, 255, 0.1);
  --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

/* ── Base ── */
body {
  background-color: var(--bg-dark);
  color: var(--text-main);
}

.selection-primary::selection {
  background-color: var(--primary);
  color: white;
}

/* ── Background Effects ── */
.bg-effects-container {
  pointer-events: none;
  position: absolute;
  inset: 0;
  overflow: hidden;
}

.bg-grid-overlay {
  position: absolute;
  inset: 0;
  background-image: 
    linear-gradient(to right, rgba(255, 255, 255, 0.02) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(255, 255, 255, 0.02) 1px, transparent 1px);
  background-size: 40px 40px;
  mask-image: radial-gradient(ellipse 60% 50% at 50% 0%, #000 70%, transparent 100%);
  -webkit-mask-image: radial-gradient(ellipse 60% 50% at 50% 0%, #000 70%, transparent 100%);
}

.hero-glow {
  position: absolute;
  width: 700px;
  height: 700px;
  top: -200px;
  left: 50%;
  transform: translateX(-50%);
  background: radial-gradient(circle, rgba(59, 130, 246, 0.15) 0%, transparent 70%);
  pointer-events: none;
  animation: glow-pulse-1 6s ease-in-out infinite;
}

.hero-glow-2 {
  position: absolute;
  width: 500px;
  height: 500px;
  top: 100px;
  right: -100px;
  background: radial-gradient(circle, rgba(168, 85, 247, 0.1) 0%, transparent 70%);
  pointer-events: none;
  animation: glow-pulse-2 8s ease-in-out infinite reverse;
}

@keyframes glow-pulse-1 {
  0%, 100% { opacity: 1; transform: translateX(-50%) scale(1); }
  50% { opacity: 0.6; transform: translateX(-50%) scale(1.1); }
}

@keyframes glow-pulse-2 {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.6; transform: scale(1.1); }
}

/* ── Typography ── */
.heading-hero {
  font-size: clamp(3rem, 10vw, 8rem);
  font-weight: 800;
  letter-spacing: -0.04em;
  line-height: 1;
  margin-top: 2rem;
}

.gradient-text {
  background: linear-gradient(to bottom right, var(--primary), var(--secondary), var(--accent));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

/* ── Components ── */
.glass-card {
  position: relative;
  overflow: hidden;
  border-radius: 1.5rem;
  border: 1px solid var(--glass-border);
  background: var(--glass-bg);
  padding: 2rem;
  transition: var(--transition);
}

.glass-card:hover {
  border-color: rgba(59, 130, 246, 0.5);
  background: rgba(255, 255, 255, 0.1);
  transform: translateY(-4px);
  box-shadow: 0 20px 40px -12px rgba(0, 0, 0, 0.5);
}

.card-icon-container {
  margin-bottom: 1.5rem;
  display: flex;
  height: 3rem;
  width: 3rem;
  align-items: center;
  justify-content: center;
  border-radius: 1rem;
  transition: var(--transition);
}

.icon-primary { background: rgba(59, 130, 246, 0.1); color: var(--primary); }
.icon-secondary { background: rgba(168, 85, 247, 0.1); color: var(--secondary); }
.icon-accent { background: rgba(245, 158, 11, 0.1); color: var(--accent); }
.icon-success { background: rgba(5, 150, 105, 0.1); color: var(--success); }

.glass-card:hover .icon-primary { background: var(--primary); color: white; }
.glass-card:hover .icon-secondary { background: var(--secondary); color: white; }
.glass-card:hover .icon-accent { background: var(--accent); color: white; }
.glass-card:hover .icon-success { background: var(--success); color: white; }

.btn-nucleus {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 9999px;
  font-weight: 700;
  border: none;
  cursor: pointer;
  transition: var(--transition);
  text-decoration: none;
}

.btn-nucleus-primary {
  background: linear-gradient(to right, var(--primary), var(--secondary));
  color: white;
  box-shadow: 0 10px 25px -5px rgba(59, 130, 246, 0.4);
}

.btn-nucleus-primary:hover {
  transform: scale(1.1);
  box-shadow: 0 15px 30px -5px rgba(59, 130, 246, 0.6);
  filter: brightness(1.1);
}

/* ── Utilities ── */
.container-max {
  max-width: 80rem;
  margin-left: auto;
  margin-right: auto;
  padding-left: 1.5rem;
  padding-right: 1.5rem;
}

.footer-nucleus {
  position: relative;
  z-index: 10;
  border-top: 1px solid rgba(255, 255, 255, 0.05);
  background: rgba(255, 255, 255, 0.02);
  padding: 5rem 0;
  backdrop-filter: blur(20px);
}

/* ── Scrollbar ── */
::-webkit-scrollbar { width: 8px; }
::-webkit-scrollbar-track { background: var(--bg-dark); }
::-webkit-scrollbar-thumb { background: #222; border-radius: 10px; }
::-webkit-scrollbar-thumb:hover { background: #333; }