/* ============================================ Base — Typography and global styles ============================================ */ body { font-family: var(--font-family); font-size: var(--text-base); background: var(--bg-dark); color: var(--text); line-height: 1.6; min-height: 100vh; display: flex; flex-direction: column; } /* Skip link — visible only on focus for keyboard users */ .skip-link { position: absolute; top: -100%; left: var(--space-md); z-index: 10000; padding: var(--space-sm) var(--space-md); background: var(--bg-dark); color: var(--cyan); border: 1px solid var(--cyan); font-size: var(--text-sm); text-decoration: none; } .skip-link:focus { top: var(--space-md); } /* Grid background — Tron Legacy infinite grid */ .grid-bg { position: fixed; top: 0; left: 0; width: 100%; height: 100%; background-image: linear-gradient(var(--cyan-dim) 1px, transparent 1px), linear-gradient(90deg, var(--cyan-dim) 1px, transparent 1px); background-size: 50px 50px; opacity: 0.05; pointer-events: none; z-index: 0; } /* Headings */ h1, h2, h3, h4 { font-family: var(--font-heading); color: var(--text-bright); line-height: 1.2; letter-spacing: 0.02em; } h1 { font-size: var(--text-4xl); } h2 { font-size: var(--text-3xl); } h3 { font-size: var(--text-2xl); } h4 { font-size: var(--text-xl); } /* Links */ a { color: var(--cyan-dim); transition: color var(--transition-fast), text-shadow var(--transition-fast); } a:hover { color: var(--cyan); text-shadow: var(--glow-cyan-sm); } /* Selection */ ::selection { background: var(--cyan-muted); color: var(--text-bright); } /* Focus visible */ :focus-visible { outline: 2px solid var(--cyan); outline-offset: 2px; } /* Canvas WebGL — created dynamically by JS */ #webgl-canvas { position: fixed; top: 0; left: 0; width: 100%; height: 100%; z-index: 0; pointer-events: none; filter: blur(1.5px); } /* Section titles — accent underline */ .section-title { text-transform: uppercase; letter-spacing: 0.15em; font-size: var(--text-2xl); margin-bottom: var(--space-2xl); position: relative; display: inline-block; } .section-title::after { content: ''; position: absolute; bottom: -8px; left: 0; width: 60px; height: 2px; background: var(--cyan); box-shadow: var(--glow-cyan-sm); } /* Section subtitle */ .section-subtitle { color: var(--text-dim); font-size: var(--text-lg); margin-bottom: var(--space-3xl); max-width: 700px; } /* Text readability — halo on floating text over 3D scene */ .section-title, .section-subtitle, .hero__title, .hero__subtitle, .hero__tagline { text-shadow: var(--text-shadow-heading); } /* Paragraph spacing in content blocks */ .content p + p { margin-top: var(--space-md); } /* High contrast mode — toggled via data-contrast="high" on */ [data-contrast="high"] { --text: #FFFFFF; --text-bright: #FFFFFF; --text-dim: #E0E0E0; --text-muted: #CCCCCC; --cyan: #00FFFF; --cyan-dim: #00FFFF; --orange: #FF9933; --orange-dim: #FF9933; --border: rgba(0, 255, 255, 0.5); --border-bright: rgba(0, 255, 255, 0.8); --glow-idle: none; --glow-hover: none; --glow-active: none; --glow-disabled: none; --glow-cyan: none; --glow-cyan-sm: none; --glow-idle-orange: none; --glow-hover-orange: none; --glow-active-orange: none; } [data-contrast="high"] a { text-decoration: underline; } [data-contrast="high"] .btn, [data-contrast="high"] .card { border-width: 2px; } [data-contrast="high"] #webgl-canvas, [data-contrast="high"] .grid-bg { opacity: 0.15; } /* Contrast toggle button */ .contrast-toggle { background: none; border: 1px solid var(--border); color: var(--text-dim); font-size: var(--text-xs); padding: 2px var(--space-sm); cursor: pointer; text-transform: uppercase; letter-spacing: 0.05em; animation: clickable-shimmer-dim 5s ease-in-out infinite -2s, border-shimmer-dim 5s ease-in-out infinite -2s; transition: color var(--transition-glow-out), border-color var(--transition-glow-out); } .contrast-toggle:hover { animation: none; color: var(--amber); border-color: var(--amber); transition: color var(--transition-glow-in), border-color var(--transition-glow-in); } .contrast-toggle:focus-visible { outline: 2px solid var(--amber); outline-offset: 2px; }