/* ========================================================== Design System / Theme Dark-first palette with electric blue -> violet accent gradient. Toggle via [data-theme="light"] on . ========================================================== */ :root { --font-heading: 'Space Grotesk', 'Open Sans', sans-serif; --font-body: 'Open Sans', sans-serif; --font-mono: 'JetBrains Mono', 'Consolas', 'Courier New', monospace; --accent-1: #3b82f6; --accent-2: #8b5cf6; --accent-3: #14b8a6; --gradient: linear-gradient(135deg, var(--accent-1) 0%, var(--accent-2) 65%, var(--accent-3) 100%); --gradient-flat: linear-gradient(135deg, var(--accent-1) 0%, var(--accent-2) 100%); --bg: #0a0e17; --bg-elevated: #10151f; --bg-card: #131a27; --bg-card-hover: #172032; --border-color: rgba(255, 255, 255, 0.09); --border-color-strong: rgba(255, 255, 255, 0.16); --text: #e8ecf4; --text-muted: #93a0b6; --text-faint: #5c6a82; --shadow-glow: 0 0 0 1px rgba(139, 92, 246, 0.15), 0 0 40px rgba(59, 130, 246, 0.18); --shadow-card: 0 10px 30px rgba(0, 0, 0, 0.35); --shadow-elevated: 0 20px 60px rgba(0, 0, 0, 0.45); --radius: 14px; --radius-sm: 8px; --transition-fast: 0.2s ease; --transition: 0.35s cubic-bezier(0.16, 1, 0.3, 1); } :root[data-theme="light"] { --bg: #f4f6fb; --bg-elevated: #ffffff; --bg-card: #ffffff; --bg-card-hover: #f8f9fe; --border-color: rgba(15, 23, 42, 0.09); --border-color-strong: rgba(15, 23, 42, 0.18); --text: #10182b; --text-muted: #4c5875; --text-faint: #8994ab; --accent-1: #2563eb; --accent-2: #7c3aed; --accent-3: #0d9488; --shadow-glow: 0 0 0 1px rgba(124, 58, 237, 0.12), 0 0 40px rgba(37, 99, 235, 0.12); --shadow-card: 0 10px 30px rgba(15, 23, 42, 0.08); --shadow-elevated: 0 20px 50px rgba(15, 23, 42, 0.12); } /* ========================================================== Base ========================================================== */ * { box-sizing: border-box; } html { scroll-behavior: smooth; } body { background-color: var(--bg); color: var(--text); font-family: var(--font-body); transition: background-color var(--transition), color var(--transition); overflow-x: hidden; } body.theme-transition, body.theme-transition * { transition: background-color var(--transition), color var(--transition), border-color var(--transition), box-shadow var(--transition) !important; } h1, h2, h3, h4, h5, h6, .site-section h2, .site-section h3 { font-family: var(--font-heading); font-weight: 700; letter-spacing: -0.01em; } a { color: var(--accent-1); } ::selection { background: var(--accent-2); color: #fff; } /* Accessible focus states everywhere */ a:focus-visible, button:focus-visible, .btn:focus-visible, input:focus-visible, [tabindex]:focus-visible { outline: 2px solid var(--accent-3); outline-offset: 3px; border-radius: 4px; } /* Gradient text utility */ .text-gradient { background: var(--gradient); -webkit-background-clip: text; background-clip: text; color: transparent; } .img-lines { display: none !important; } /* Elements rendered only in print (see print.css) */ @media screen { .print-only { display: none !important; } } .section-eyebrow { display: inline-block; font-family: var(--font-mono); font-size: 0.8rem; letter-spacing: 0.08em; text-transform: uppercase; color: var(--accent-3); margin-bottom: 6px; } /* ========================================================== Scroll-reveal animation ========================================================== */ .reveal { opacity: 0; transform: translateY(24px); transition: opacity 0.7s ease, transform 0.7s ease; will-change: opacity, transform; } .reveal.in-view { opacity: 1; transform: translateY(0); } .reveal-stagger > * { opacity: 0; transform: translateY(20px); transition: opacity 0.6s ease, transform 0.6s ease; } .reveal-stagger.in-view > * { opacity: 1; transform: translateY(0); } .reveal-stagger.in-view > *:nth-child(1) { transition-delay: 0.02s; } .reveal-stagger.in-view > *:nth-child(2) { transition-delay: 0.08s; } .reveal-stagger.in-view > *:nth-child(3) { transition-delay: 0.14s; } .reveal-stagger.in-view > *:nth-child(4) { transition-delay: 0.2s; } .reveal-stagger.in-view > *:nth-child(5) { transition-delay: 0.26s; } .reveal-stagger.in-view > *:nth-child(6) { transition-delay: 0.32s; } .reveal-stagger.in-view > *:nth-child(7) { transition-delay: 0.38s; } .reveal-stagger.in-view > *:nth-child(8) { transition-delay: 0.44s; } @media (prefers-reduced-motion: reduce) { .reveal, .reveal-stagger > * { opacity: 1 !important; transform: none !important; transition: none !important; } html { scroll-behavior: auto; } } /* ========================================================== Theme toggle button ========================================================== */ .theme-toggle { display: inline-flex; align-items: center; justify-content: center; width: 38px; height: 38px; border-radius: 50%; border: 1px solid var(--border-color-strong); background: var(--bg-card); color: var(--text); cursor: pointer; transition: border-color var(--transition-fast), transform var(--transition-fast), box-shadow var(--transition-fast); } .theme-toggle:hover { border-color: var(--accent-2); box-shadow: var(--shadow-glow); transform: translateY(-1px); } .theme-toggle i { font-size: 15px; } .locale-toggle { display: inline-flex; align-items: center; gap: 6px; height: 38px; padding: 0 12px; border-radius: 20px; border: 1px solid var(--border-color-strong); background: var(--bg-card); color: var(--text); font-family: var(--font-heading); font-size: 12px; font-weight: 700; letter-spacing: 0.03em; cursor: pointer; transition: border-color var(--transition-fast), box-shadow var(--transition-fast), transform var(--transition-fast); } .locale-toggle:hover { border-color: var(--accent-2); box-shadow: var(--shadow-glow); transform: translateY(-1px); } .locale-toggle img { width: 16px; height: 16px; border-radius: 2px; object-fit: cover; } :root[data-theme="dark"] .theme-toggle .fa-sun, :root:not([data-theme="light"]) .theme-toggle .fa-sun { display: inline-block; } :root[data-theme="dark"] .theme-toggle .fa-moon, :root:not([data-theme="light"]) .theme-toggle .fa-moon { display: none; } :root[data-theme="light"] .theme-toggle .fa-sun { display: none; } :root[data-theme="light"] .theme-toggle .fa-moon { display: inline-block; }