/* Universal Tier C Design System - Domain Hosting Checker */
@import url('https://fonts.googleapis.com/css2?family=Plus+Jakarta+Sans:wght@300;400;500;600;700;800&family=JetBrains+Mono:wght@400;500;600&display=swap');

:root {
  /* Color Tokens */
  --bg-main: #F8FAFC;
  --bg-gradient-1: rgba(238, 242, 255, 0.7);
  --bg-gradient-2: rgba(243, 232, 255, 0.7);
  --glass-bg: rgba(255, 255, 255, 0.85);
  --glass-border: rgba(226, 232, 240, 0.8);
  --glass-shadow: 0 20px 40px -15px rgba(79, 70, 229, 0.07);
  
  --text-main: #0F172A;
  --text-muted: #64748B;
  --text-inverse: #FFFFFF;
  
  --primary-start: #4F46E5;
  --primary-end: #7C3AED;
  --primary-gradient: linear-gradient(135deg, var(--primary-start) 0%, var(--primary-end) 100%);
  --primary-hover: linear-gradient(135deg, #4338CA 0%, #6D28D9 100%);
  --glow-shadow: 0 10px 25px -5px rgba(99, 102, 241, 0.35);
  
  --accent-cyan: #06B6D4;
  --accent-green: #10B981;
  --accent-amber: #F59E0B;
  --accent-rose: #F43F5E;
  
  --card-radius: 16px;
  --pill-radius: 9999px;
  --transition-fast: 0.2s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-smooth: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  
  --font-sans: 'Plus Jakarta Sans', system-ui, -apple-system, sans-serif;
  --font-mono: 'JetBrains Mono', monospace;
}

/* Dark Mode Tokens Override */
[data-theme="dark"] {
  --bg-main: #0B0F19;
  --bg-gradient-1: rgba(15, 23, 42, 0.9);
  --bg-gradient-2: rgba(30, 27, 75, 0.8);
  --glass-bg: rgba(17, 24, 39, 0.85);
  --glass-border: rgba(55, 65, 81, 0.6);
  --glass-shadow: 0 20px 40px -15px rgba(0, 0, 0, 0.4);
  
  --text-main: #F1F5F9;
  --text-muted: #94A3B8;
}

/* Reset & Global Base */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
  font-size: 16px;
}

body {
  font-family: var(--font-sans);
  background-color: var(--bg-main);
  color: var(--text-main);
  line-height: 1.6;
  min-height: 100vh;
  position: relative;
  overflow-x: hidden;
}

/* Ambient Radial Background Blurs */
body::before, body::after {
  content: '';
  position: fixed;
  border-radius: 50%;
  filter: blur(120px);
  z-index: -1;
  pointer-events: none;
}

body::before {
  width: 600px;
  height: 600px;
  top: -100px;
  left: -100px;
  background: radial-gradient(circle, var(--bg-gradient-1), transparent 70%);
}

body::after {
  width: 500px;
  height: 500px;
  top: 300px;
  right: -100px;
  background: radial-gradient(circle, var(--bg-gradient-2), transparent 70%);
}

/* Layout Container */
.app-container {
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 1.5rem 3rem;
}

/* Typography Helpers */
h1, h2, h3, h4, h5, h6 {
  font-weight: 700;
  letter-spacing: -0.02em;
  line-height: 1.25;
}

.text-gradient {
  background: var(--primary-gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  display: inline-block;
}

/* Glass Card Base */
.glass-card {
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-radius: var(--card-radius);
  box-shadow: var(--glass-shadow);
  transition: transform var(--transition-smooth), box-shadow var(--transition-smooth), border-color var(--transition-smooth);
}

.glass-card:hover {
  border-color: rgba(99, 102, 241, 0.3);
}

/* Buttons & Badges */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.75rem 1.5rem;
  font-size: 0.95rem;
  font-weight: 600;
  border-radius: var(--pill-radius);
  border: none;
  cursor: pointer;
  transition: all var(--transition-fast);
  text-decoration: none;
}

.btn-primary {
  background: var(--primary-gradient);
  color: var(--text-inverse);
  box-shadow: var(--glow-shadow);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 15px 30px -5px rgba(99, 102, 241, 0.45);
  opacity: 0.95;
}

.btn-secondary {
  background: rgba(241, 245, 249, 0.8);
  color: var(--text-main);
  border: 1px solid var(--glass-border);
}

[data-theme="dark"] .btn-secondary {
  background: rgba(31, 41, 55, 0.8);
}

.btn-secondary:hover {
  background: var(--glass-border);
  transform: translateY(-1px);
}

.badge {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  padding: 0.35rem 0.85rem;
  border-radius: var(--pill-radius);
  font-size: 0.8rem;
  font-weight: 600;
  background: rgba(79, 70, 229, 0.08);
  color: var(--primary-start);
  border: 1px solid rgba(79, 70, 229, 0.18);
}

/* Utility Animations */
@keyframes pulseGlow {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.7; transform: scale(1.05); }
}

.pulsing-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--accent-green);
  box-shadow: 0 0 10px var(--accent-green);
  animation: pulseGlow 2s infinite ease-in-out;
}