:root { --bg: #0f172a; --card: #1e293b; --text: #f8fafc; --muted: #94a3b8; --accent: #38bdf8; --border: #334155; }
* { box-sizing: border-box; margin: 0; padding: 0; }
body { background: var(--bg); color: var(--text); font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif; line-height: 1.7; padding: 24px 16px; display: flex; justify-content: center; }
main { width: 100%; max-width: 640px; }
header { margin: 24px 0 32px; }
h1 { font-size: 1.8rem; margin-bottom: 8px; }
h2 { font-size: 1.15rem; margin: 28px 0 10px; }
p, li { color: var(--muted); font-size: 0.95rem; word-break: keep-all; }
ul { padding-left: 20px; }
a { color: var(--accent); }
.tool-list { display: grid; gap: 12px; }
.tool { display: block; background: var(--card); border: 1px solid var(--border); border-radius: 12px; padding: 18px; text-decoration: none; color: var(--text); transition: border-color 0.2s; }
.tool:hover { border-color: var(--accent); }
.tool strong { display: block; font-size: 1.05rem; margin-bottom: 4px; }
.tool span { color: var(--muted); font-size: 0.9rem; }
footer { margin-top: 48px; padding-top: 16px; border-top: 1px solid var(--border); font-size: 0.8rem; color: var(--muted); }