/**
 * AmazingAI Base Styles, Resets & Typography
 */

*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  font-size: 16px;
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  font-family: var(--font-body);
  font-size: var(--text-base);
  line-height: 1.6;
  color: var(--text-primary);
  background-color: var(--bg-canvas);
  background-image: 
    linear-gradient(to right, rgba(255, 255, 255, 0.035) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(255, 255, 255, 0.035) 1px, transparent 1px),
    radial-gradient(circle at 50% 0%, rgba(0, 210, 180, 0.22) 0%, rgba(2, 132, 199, 0.14) 35%, transparent 70%),
    radial-gradient(circle at 85% 25%, rgba(139, 92, 246, 0.12) 0%, transparent 45%),
    radial-gradient(circle at 15% 65%, rgba(0, 210, 180, 0.08) 0%, transparent 50%);
  background-size: 36px 36px, 36px 36px, 100% 100%, 100% 100%, 100% 100%;
  background-attachment: fixed;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  overflow-x: hidden;
  position: relative;
}

[data-theme="light"] body {
  background-color: #f8fafc;
  background-image: 
    linear-gradient(to right, rgba(0, 0, 0, 0.035) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(0, 0, 0, 0.035) 1px, transparent 1px),
    radial-gradient(circle at 50% 0%, rgba(0, 210, 180, 0.12) 0%, rgba(2, 132, 199, 0.08) 35%, transparent 70%),
    radial-gradient(circle at 85% 25%, rgba(139, 92, 246, 0.06) 0%, transparent 45%);
  background-size: 36px 36px, 36px 36px, 100% 100%, 100% 100%;
}

/* Custom Scrollbar */
::-webkit-scrollbar {
  width: 10px;
  height: 10px;
}
::-webkit-scrollbar-track {
  background: var(--bg-canvas);
}
::-webkit-scrollbar-thumb {
  background: var(--border-medium);
  border-radius: var(--radius-full);
  border: 2px solid var(--bg-canvas);
}
::-webkit-scrollbar-thumb:hover {
  background: var(--brand-primary);
}

/* Typography Defaults */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-display);
  color: var(--text-primary);
  font-weight: 700;
  line-height: 1.25;
  letter-spacing: -0.02em;
}

h1 { font-size: clamp(2rem, 4vw + 1rem, 3.5rem); font-weight: 800; }
h2 { font-size: clamp(1.6rem, 2.5vw + 0.8rem, 2.4rem); }
h3 { font-size: clamp(1.25rem, 1.5vw + 0.5rem, 1.75rem); }
h4 { font-size: var(--text-xl); }
h5 { font-size: var(--text-lg); }
h6 { font-size: var(--text-base); }

p {
  color: var(--text-secondary);
  margin-bottom: var(--space-4);
  font-weight: 400;
}

p:last-child {
  margin-bottom: 0;
}

a {
  color: var(--brand-primary);
  text-decoration: none;
  transition: color var(--duration-fast) var(--ease-smooth);
}
a:hover {
  color: var(--brand-primary-hover);
}

code, kbd, samp, pre {
  font-family: var(--font-mono);
  font-size: 0.9em;
}

code {
  background: var(--bg-elevated);
  padding: 0.2em 0.45em;
  border-radius: var(--radius-xs);
  color: var(--brand-cyan);
  border: 1px solid var(--border-subtle);
}

img, svg, video {
  max-width: 100%;
  height: auto;
  display: block;
}

ul, ol {
  list-style: none;
}

button, input, select, textarea {
  font: inherit;
  color: inherit;
}

/* Focus styles for keyboard accessibility */
:focus-visible {
  outline: 2px solid var(--brand-primary);
  outline-offset: 3px;
  border-radius: var(--radius-xs);
}

/* Global Container Utilities */
.container {
  width: 100%;
  max-width: var(--container-xl);
  margin-left: auto;
  margin-right: auto;
  padding-left: var(--space-6);
  padding-right: var(--space-6);
}

.container-wide {
  max-width: var(--container-2xl);
}

.container-narrow {
  max-width: var(--container-md);
}

/* Layout Utilities */
.flex { display: flex; }
.flex-col { flex-direction: column; }
.items-center { align-items: center; }
.justify-between { justify-content: space-between; }
.justify-center { justify-content: center; }
.gap-2 { gap: var(--space-2); }
.gap-3 { gap: var(--space-3); }
.gap-4 { gap: var(--space-4); }
.gap-6 { gap: var(--space-6); }
.gap-8 { gap: var(--space-8); }

.grid {
  display: grid;
}

.site-main {
  flex: 1 0 auto;
}

/* Accessibility */
.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

/* Keyframe Animations */
@keyframes pulseSubtle {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.85; transform: scale(0.98); }
}

@keyframes floatBadge {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-3px); }
}

@keyframes glowShimmer {
  0% { background-position: -200% 0; }
  100% { background-position: 200% 0; }
}

@keyframes liveDotGlow {
  0%, 100% { box-shadow: 0 0 0 0 rgba(16, 185, 129, 0.7); }
  50% { box-shadow: 0 0 0 6px rgba(16, 185, 129, 0); }
}