/* ============================================
   landing24.site — Global Styles 2025
   Design: Glassmorphism + Gradient Mesh + Aurora
   ============================================ */

:root {
  /* Brand */
  --purple: #7C3AED;
  --blue:   #3B82F6;
  --cyan:   #06B6D4;
  --grad:   linear-gradient(135deg, #7C3AED, #3B82F6, #06B6D4);
  --grad2:  linear-gradient(135deg, #06B6D4, #3B82F6, #7C3AED);

  /* Backgrounds */
  --bg:     #05050A;
  --bg2:    #0C0C15;
  --bg3:    #11111E;
  --bg4:    #17172A;

  /* Glass */
  --glass:       rgba(255,255,255,0.04);
  --glass-border: rgba(255,255,255,0.08);
  --glass-hover: rgba(255,255,255,0.07);

  /* Text */
  --fg:    #F0F0FF;
  --fg2:   #9898B8;
  --fg3:   #55557A;

  /* Accents */
  --accent:        #A78BFA;
  --accent-glow:   rgba(124,58,237,0.4);
  --cyan-glow:     rgba(6,182,212,0.3);
  --success:       #34D399;
  --danger:        #F87171;

  /* Radii */
  --r-sm: 10px;
  --r:    16px;
  --r-lg: 24px;
  --r-xl: 32px;

  /* Shadows */
  --shadow-sm:  0 2px 8px rgba(0,0,0,0.4);
  --shadow:     0 8px 32px rgba(0,0,0,0.5);
  --shadow-lg:  0 24px 64px rgba(0,0,0,0.6);
  --glow-purple: 0 0 40px rgba(124,58,237,0.35);
  --glow-cyan:   0 0 40px rgba(6,182,212,0.25);
}

/* RESET */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  background: var(--bg);
  color: var(--fg);
  font-family: 'Inter', system-ui, sans-serif;
  font-size: 16px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}
a { color: inherit; text-decoration: none; }
img { display: block; max-width: 100%; }
button { font-family: inherit; cursor: pointer; }

/* TYPOGRAPHY */
.display {
  font-size: clamp(42px, 6.5vw, 88px);
  font-weight: 800;
  line-height: 1.0;
  letter-spacing: -0.035em;
}
h1 {
  font-size: clamp(36px, 5vw, 68px);
  font-weight: 800;
  line-height: 1.05;
  letter-spacing: -0.03em;
}
h2 {
  font-size: clamp(28px, 3.5vw, 48px);
  font-weight: 700;
  line-height: 1.1;
  letter-spacing: -0.025em;
}
h3 { font-size: 20px; font-weight: 600; line-height: 1.3; letter-spacing: -0.01em; }
h4 { font-size: 16px; font-weight: 600; }

.gradient-text {
  background: var(--grad);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.text-muted { color: var(--fg2); }
.text-dim   { color: var(--fg3); }

/* LAYOUT */
.container { max-width: 1120px; margin: 0 auto; padding: 0 24px; }
.section   { padding: 100px 0; }
.section-sm { padding: 72px 0; }

/* PILL LABEL */
.pill {
  display: inline-flex; align-items: center; gap: 8px;
  background: var(--glass); border: 1px solid var(--glass-border);
  backdrop-filter: blur(12px);
  border-radius: 99px; padding: 6px 16px;
  font-size: 12px; font-weight: 500; letter-spacing: 0.06em;
  text-transform: uppercase; color: var(--accent);
}
.pill-dot {
  width: 6px; height: 6px; border-radius: 50%;
  background: var(--accent); flex-shrink: 0;
  box-shadow: 0 0 6px var(--accent);
  animation: pulse-dot 2s infinite;
}
@keyframes pulse-dot {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.6; transform: scale(1.3); }
}

/* BUTTONS */
.btn {
  display: inline-flex; align-items: center; gap: 8px;
  border: none; border-radius: 99px;
  font-size: 15px; font-weight: 600;
  padding: 14px 32px; transition: all .25s;
  position: relative; overflow: hidden;
}
.btn::after {
  content: ''; position: absolute; inset: 0;
  background: white; opacity: 0; transition: opacity .2s;
}
.btn:hover::after { opacity: 0.06; }
.btn-primary {
  background: var(--grad);
  color: white;
  box-shadow: var(--glow-purple);
}
.btn-primary:hover { box-shadow: 0 0 60px rgba(124,58,237,0.5); transform: translateY(-1px); }
.btn-outline {
  background: var(--glass); border: 1px solid var(--glass-border);
  color: var(--fg); backdrop-filter: blur(12px);
}
.btn-outline:hover { border-color: rgba(255,255,255,0.2); background: var(--glass-hover); }
.btn-lg { padding: 18px 40px; font-size: 17px; }
.btn-sm { padding: 10px 22px; font-size: 14px; }

/* GLASS CARD */
.glass-card {
  background: var(--glass);
  border: 1px solid var(--glass-border);
  backdrop-filter: blur(20px);
  border-radius: var(--r-lg);
  transition: border-color .25s, background .25s;
}
.glass-card:hover {
  border-color: rgba(255,255,255,0.14);
  background: var(--glass-hover);
}

/* GRADIENT MESH BACKGROUND */
.mesh-bg { position: relative; overflow: hidden; }
.mesh-bg::before {
  content: '';
  position: absolute; inset: 0; z-index: 0;
  background:
    radial-gradient(ellipse 60% 50% at 20% 20%, rgba(124,58,237,0.12) 0%, transparent 60%),
    radial-gradient(ellipse 50% 60% at 80% 70%, rgba(6,182,212,0.10) 0%, transparent 60%),
    radial-gradient(ellipse 40% 40% at 60% 20%, rgba(59,130,246,0.08) 0%, transparent 60%);
  pointer-events: none;
}
.mesh-bg > * { position: relative; z-index: 1; }

/* DIVIDER */
.divider {
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--glass-border), transparent);
}

/* GRID HELPERS */
.grid-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 24px; }
.grid-3 { display: grid; grid-template-columns: repeat(3,1fr); gap: 20px; }
.grid-4 { display: grid; grid-template-columns: repeat(4,1fr); gap: 16px; }

/* SCROLL REVEAL */
.reveal {
  opacity: 0; transform: translateY(28px);
  transition: opacity .6s ease, transform .6s ease;
}
.reveal.visible { opacity: 1; transform: translateY(0); }
.reveal-delay-1 { transition-delay: .1s; }
.reveal-delay-2 { transition-delay: .2s; }
.reveal-delay-3 { transition-delay: .3s; }
.reveal-delay-4 { transition-delay: .4s; }

/* NOISE TEXTURE overlay */
.noise::after {
  content: '';
  position: absolute; inset: 0; z-index: 2;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='noise'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23noise)' opacity='0.03'/%3E%3C/svg%3E");
  pointer-events: none; opacity: 0.4;
}

/* RESPONSIVE */
@media (max-width: 960px) {
  .grid-3 { grid-template-columns: 1fr 1fr; }
  .grid-4 { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 640px) {
  .grid-2, .grid-3, .grid-4 { grid-template-columns: 1fr; }
  .container { padding: 0 16px; }
  .section { padding: 72px 0; }
  .btn-lg { padding: 16px 28px; font-size: 15px; }
}