/* === BASE RESET & GLOBAL STYLES — Gothic Dark === */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html {
  -webkit-text-size-adjust: none;
  text-size-adjust: none;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
  scroll-behavior: smooth;
  scroll-padding-top: var(--space-16);
}

body {
  font-family: var(--font-sans);
  font-size: var(--text-base);
  line-height: 1.7;
  color: var(--color-text);
  background-color: var(--bg-page);
  min-height: 100dvh;
  overflow-x: hidden;
  /* Paper grain texture via SVG filter */
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='300' height='300'%3E%3Cfilter id='grain'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.75' numOctaves='4' stitchTiles='stitch'/%3E%3CfeColorMatrix type='saturate' values='0'/%3E%3CfeBlend in='SourceGraphic' mode='multiply'/%3E%3C/filter%3E%3Crect width='300' height='300' filter='url(%23grain)' opacity='0.04'/%3E%3C/svg%3E");
}

/* === TYPOGRAPHY === */
h1,h2,h3,h4,h5,h6 {
  font-family: var(--font-serif);
  line-height: 1.15;
  color: var(--color-parchment, var(--color-text));
  letter-spacing: -0.01em;
}

h1 { font-size: var(--text-3xl); }
h2 { font-size: var(--text-2xl); }
h3 { font-size: var(--text-xl); }
h4 { font-size: var(--text-lg); }

p { margin-bottom: var(--space-4); max-width: 72ch; }
a { color: var(--neon-cyan); text-decoration: none; transition: color var(--dur-fast), text-shadow var(--dur-fast); }
a:hover { color: var(--neon-cyan); text-shadow: var(--glow-cyan); }

blockquote {
  border-left: 3px solid var(--neon-gold);
  box-shadow: var(--glow-gold);
  padding: var(--space-4) var(--space-6);
  margin: var(--space-8) 0;
  font-family: var(--font-serif);
  font-style: italic;
  font-size: var(--text-lg);
  color: var(--neon-gold);
  background: rgba(255, 214, 0, 0.04);
}

img, video { display: block; max-width: 100%; height: auto; }
button { cursor: pointer; font-family: inherit; }
input, textarea, select { font-family: inherit; font-size: inherit; }

/* === FOCUS RING (neon cyan) === */
:focus-visible {
  outline: 2px solid var(--neon-cyan);
  outline-offset: 3px;
  box-shadow: var(--glow-cyan);
}

/* === SELECTION === */
::selection {
  background: var(--neon-cyan);
  color: var(--color-ink);
}

/* === SCROLLBAR === */
::-webkit-scrollbar { width: 6px; }
::-webkit-scrollbar-track { background: var(--color-ink-soft, #141210); }
::-webkit-scrollbar-thumb {
  background: var(--neon-cyan);
  border-radius: 3px;
  box-shadow: var(--glow-cyan);
}

/* === UTILITY CLASSES === */
.sr-only { position:absolute; width:1px; height:1px; padding:0; margin:-1px; overflow:hidden; clip:rect(0,0,0,0); white-space:nowrap; border:0; }
.container { width: 100%; max-width: var(--max-w-content); margin-inline: auto; padding-inline: clamp(1rem, 4vw, 2rem); }
.neon-cyan   { color: var(--neon-cyan);    text-shadow: var(--glow-cyan); }
.neon-lime   { color: var(--neon-lime);    text-shadow: var(--glow-lime); }
.neon-magenta{ color: var(--neon-magenta); text-shadow: var(--glow-magenta); }
.neon-gold   { color: var(--neon-gold);    text-shadow: var(--glow-gold); }

/* === ORNAMENTAL RULE === */
.rule-ornament {
  display: flex; align-items: center; gap: var(--space-3);
  color: var(--neon-cyan); font-size: var(--text-sm);
  text-shadow: var(--glow-cyan); letter-spacing: 0.2em;
  margin: var(--space-4) 0;
}
.rule-ornament::before,.rule-ornament::after {
  content: ''; flex: 1;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--neon-cyan), transparent);
  box-shadow: 0 0 6px var(--neon-cyan);
}

/* === NEON BORDER EDGE === */
.edge-cyan    { border-color: var(--neon-cyan);    box-shadow: 0 0 6px var(--neon-cyan); }
.edge-lime    { border-color: var(--neon-lime);    box-shadow: 0 0 6px var(--neon-lime); }
.edge-magenta { border-color: var(--neon-magenta); box-shadow: 0 0 6px var(--neon-magenta); }
.edge-gold    { border-color: var(--neon-gold);    box-shadow: 0 0 6px var(--neon-gold); }

/* === ANIMATIONS === */
@keyframes flicker {
  0%,100% { opacity:1; } 92% { opacity:1; } 93% { opacity:0.85; } 94% { opacity:1; } 96% { opacity:0.9; } 97% { opacity:1; }
}
@keyframes pulse-glow {
  0%,100% { box-shadow: var(--glow-cyan); }
  50%     { box-shadow: 0 0 16px var(--neon-cyan), 0 0 40px rgba(0,229,255,0.6); }
}
@keyframes slide-up {
  from { opacity:0; transform:translateY(1.5rem); }
  to   { opacity:1; transform:translateY(0); }
}
.animate-slide-up { animation: slide-up var(--dur-slow) var(--ease-out) both; }
.animate-flicker   { animation: flicker 8s linear infinite; }