/* ===== Shared base styles for Duc Nguyen content pages ===== */
/* Loaded by about, contact, privacy-policy, terms-of-service, blog/index, and all blog articles.
   Page-specific styles remain inline in each page's <style> block. */

*{box-sizing:border-box;margin:0;padding:0}
:root{
  --bg:#050508;--bg-card:#0e0e12;--text:#e8e8f0;--text-muted:#888;
  --purple:#6366f1;--pink:#ec4899;--border:#1a1a24;--radius:10px;
  --mono:'JetBrains Mono',monospace;
}
body{font-family:'Inter',system-ui,sans-serif;background:var(--bg);color:var(--text);line-height:1.75}
a{color:var(--purple);text-decoration:none}
a:hover{text-decoration:underline}

/* NAV */
.nav{position:sticky;top:0;z-index:100;background:rgba(5,5,8,.92);backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);border-bottom:1px solid var(--border);padding:0 20px}
.nav-inner{max-width:800px;margin:0 auto;display:flex;align-items:center;justify-content:space-between;height:56px}
.nav-logo{font-size:1.1rem;font-weight:700;color:var(--text)}
.nav-links{display:flex;gap:20px;flex-wrap:wrap}
.nav-links a{color:var(--text-muted);font-size:.85rem}
.nav-links a:hover{color:var(--text);text-decoration:none}

/* CONTAINER + TYPOGRAPHY */
.container{max-width:800px;margin:0 auto;padding:48px 20px 80px}
.container h1{font-size:2.2rem;font-weight:800;margin-bottom:8px;letter-spacing:-.5px}
.updated{color:var(--text-muted);font-size:.85rem;margin-bottom:32px}
h2{font-size:1.3rem;font-weight:700;margin:36px 0 14px;color:var(--text);letter-spacing:-.2px}
h3{font-size:1.05rem;font-weight:600;margin:24px 0 8px;color:var(--text)}
p{color:var(--text-muted);font-size:.95rem;margin-bottom:14px}
ul{margin:0 0 16px 22px}
li{margin-bottom:8px;color:var(--text-muted);font-size:.95rem}
li strong{color:var(--text)}

/* FOOTER */
.footer{border-top:1px solid var(--border);padding:28px 20px;text-align:center;display:flex;gap:22px;justify-content:center;flex-wrap:wrap}
.footer a{color:var(--text-muted);font-size:.85rem}
.footer a:hover{color:var(--text)}

/* SHARED COMPONENTS (used by multiple page types) */
.callout{background:var(--bg-card);border:1px solid var(--border);border-left:3px solid var(--purple);border-radius:var(--radius);padding:16px 20px;margin:24px 0}
.callout strong{color:var(--text)}
.lead{color:var(--text);font-size:1.05rem;margin-bottom:24px;line-height:1.7}

/* RESPONSIVE */
@media(max-width:640px){.container{padding:32px 16px 60px}.container h1{font-size:1.7rem}.nav-links{gap:14px}}