* { margin: 0; padding: 0; box-sizing: border-box; }
body { background: #0a0a1a; color: #d0d0d0; font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif; line-height: 1.7; }
a { color: #4fc3f7; text-decoration: none; }
a:hover { text-decoration: underline; }

/* Nav */
nav { background: #0d0d20; border-bottom: 1px solid #1a1a2e; padding: 16px 0; }
.nav-inner { max-width: 960px; margin: 0 auto; padding: 0 24px; display: flex; justify-content: space-between; align-items: center; }
.nav-logo { font-size: 22px; font-weight: bold; color: #fff; text-decoration: none; }
.nav-logo span { color: #4fc3f7; }
.nav-links { display: flex; gap: 24px; }
.nav-links a { color: #888; font-size: 14px; text-decoration: none; }
.nav-links a:hover { color: #fff; }

/* Hero */
.hero { text-align: center; padding: 80px 24px 48px; max-width: 720px; margin: 0 auto; }
.hero h1 { font-size: 40px; color: #fff; line-height: 1.3; margin-bottom: 16px; }
.hero h1 span { color: #4fc3f7; }
.hero-sub { font-size: 18px; color: #888; }

/* Main */
main { max-width: 960px; margin: 0 auto; padding: 0 24px; }
section { margin-bottom: 64px; }
h2 { font-size: 28px; color: #fff; margin-bottom: 20px; }

/* Intro */
.intro p { font-size: 16px; color: #aaa; margin-bottom: 12px; max-width: 720px; }

/* Tool cards */
.grid { display: grid; grid-template-columns: 1fr; gap: 24px; }
@media (min-width: 640px) { .grid { grid-template-columns: 1fr 1fr; } }
.card { background: #16213e; border: 2px solid #222; border-radius: 16px; padding: 28px 24px; text-decoration: none !important; color: inherit; transition: border-color 0.2s, transform 0.2s; display: flex; gap: 16px; }
.card:hover { border-color: #4fc3f7; transform: translateY(-2px); }
.card-icon { font-size: 36px; flex-shrink: 0; }
.card-content { flex: 1; }
.card-content h3 { font-size: 18px; color: #fff; margin-bottom: 8px; }
.card-content p { font-size: 14px; color: #999; margin-bottom: 8px; }
.card-content ul { font-size: 13px; color: #888; padding-left: 18px; margin-bottom: 8px; }
.card-content li { margin-bottom: 4px; }
.card-content strong { color: #ccc; }
.card-domain { font-size: 12px; color: #4fc3f7; }

/* Why section */
.why-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 24px; }
@media (max-width: 640px) { .why-grid { grid-template-columns: 1fr; } }
.why-item { background: #111827; border-radius: 12px; padding: 24px; }
.why-item h3 { font-size: 18px; color: #fff; margin-bottom: 8px; }
.why-item p { font-size: 14px; color: #888; }

/* Footer */
footer { background: #0d0d20; border-top: 1px solid #1a1a2e; padding: 40px 24px; margin-top: 48px; }
.footer-inner { max-width: 960px; margin: 0 auto; text-align: center; }
.footer-brand { font-size: 20px; font-weight: bold; color: #fff; margin-bottom: 16px; }
.footer-brand span { color: #4fc3f7; }
.footer-links { display: flex; justify-content: center; gap: 24px; margin-bottom: 16px; }
.footer-links a { color: #666; font-size: 14px; }
.footer-links a:hover { color: #fff; }
.footer-copy { color: #444; font-size: 13px; }