:root{
  --bg:#0e0e12; --card:#151822; --text:#e7e7ef; --muted:#a6accd; --brand:#7c5cff; --brand-2:#22d3ee;
  --max: 1024px;
}
*{box-sizing:border-box}
html,body{margin:0;padding:0;background:var(--bg);color:var(--text);font-family:Inter,system-ui,Segoe UI,Roboto,Helvetica,Arial,sans-serif;line-height:1.7}
a{color:var(--brand);text-decoration:none}
a:hover{opacity:.92;text-decoration:underline}
.container{max-width:var(--max);margin:0 auto;padding:24px}
.navbar{display:flex;align-items:center;justify-content:space-between;padding:16px 24px;background:linear-gradient(90deg, rgba(21,24,34,.7), rgba(21,24,34,.3));position:sticky;top:0;backdrop-filter:blur(6px);z-index:5;border-bottom:1px solid #1e2230}
.navbar a.brand{color:#fff;font-weight:700;letter-spacing:.3px}
.navbar .menu a{margin-left:16px;color:var(--muted)}
.hero{padding:64px 0 24px;border-bottom:1px solid #1e2230;background: radial-gradient(1200px 600px at 20% -10%, rgba(124,92,255,.25), transparent 60%), radial-gradient(900px 600px at 100% -30%, rgba(34,211,238,.18), transparent 50%)}
.hero h1{font-size:clamp(28px,4vw,44px);margin:0 0 12px}
.hero p{color:var(--muted);max-width:760px;margin:0}
.grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(260px,1fr));gap:18px;margin-top:24px}
.card{background:var(--card);border:1px solid #1e2230;border-radius:14px;padding:18px;transition:transform .15s ease, box-shadow .15s ease}
.card:hover{transform:translateY(-2px);box-shadow:0 10px 30px rgba(0,0,0,.25)}
.card h3{margin:0 0 8px;font-size:18px}
.meta{color:var(--muted);font-size:13px}
.post{max-width:820px;margin:0 auto;background:transparent}
.post h1{font-size:clamp(28px,3.2vw,42px);margin:8px 0 8px}
.post .meta{margin-bottom:14px}
.post .content{background:var(--card);border:1px solid #1e2230;border-radius:16px;padding:28px}
.post .content p{margin:0 0 14px}
.post .content h2{margin:28px 0 12px;border-bottom:1px dashed #2a2f45;padding-bottom:6px}
.post .content .toc{background:#121522;border:1px solid #23283c;border-radius:10px;padding:12px 14px;margin:10px 0 18px}
.post .content .toc strong{font-size:14px}
.related{margin-top:24px;background:transparent}
.related h3{margin:10px 0 12px}
.footer{padding:36px 0;color:var(--muted);text-align:center;border-top:1px solid #1e2230;margin-top:40px}
.badge{display:inline-block;padding:2px 8px;border-radius:999px;background:#23283c;color:var(--muted);font-size:12px;margin-right:8px}
.internal{border-bottom:1px dashed rgba(124,92,255,.5)}
blockquote{border-left:3px solid var(--brand);padding:4px 12px;color:#c8cdf0;background:#121522;border-radius:6px;margin:12px 0}
ul,ol{padding-left:22px}
img{max-width:100%;border-radius:8px}
@media (max-width:600px){.navbar .menu{display:none}}

/* Cookie bar */

#cookiebar{position:fixed;left:12px;right:12px;bottom:12px;background:#0f1322;color:#e9ecff;border:1px solid #23283c;border-radius:12px;z-index:99;
  box-shadow:0 12px 40px rgba(0,0,0,.35)}
#cookiebar .cookie-inner{display:flex;gap:16px;align-items:center;justify-content:space-between;padding:12px 14px}
#cookiebar .cookie-text{font-size:14px;line-height:1.5}
#cookiebar .cookie-actions{display:flex;gap:8px}
#cookiebar button{background:#7c5cff;color:#fff;border:none;border-radius:8px;padding:8px 12px;font-weight:600;cursor:pointer}
#cookiebar button.outline{background:transparent;border:1px solid #2a2f45;color:#c7cdf5}
@media(max-width:600px){#cookiebar .cookie-inner{flex-direction:column;align-items:flex-start}}

/* Sticky/Collapsible TOC */
.toc{position:relative}
.toc-sticky{position:sticky;top:84px;max-height:60vh;overflow:auto}
.toc .toc-toggle{display:none;border:1px solid #2a2f45;border-radius:8px;padding:6px 10px;margin-bottom:8px;background:#121522;color:#cbd1f8;font-size:13px}
@media(max-width:860px){
  .toc-sticky{position:relative;top:auto;max-height:none}
  .toc .toc-toggle{display:inline-block}
  .toc.collapsed ul{display:none}
}
/* v9 tweaks */
.navbar{flex-wrap:wrap}
.navbar .menu a{margin:8px 12px 0 12px;display:inline-block}
@media(min-width:760px){.navbar .menu a{margin:0 0 0 16px}}
/* Cookie button tap targets */
#cookiebar button{padding:10px 14px}

/* v10 tools */
.tool-form{background:var(--card);border:1px solid #1e2230;border-radius:12px;padding:18px;margin:12px 0}
.tool-form label{display:block;margin-bottom:4px;color:var(--muted);font-size:14px}
.tool-form input,.tool-form select{width:100%;padding:10px 12px;margin-bottom:12px;border-radius:8px;border:1px solid #2a2f45;background:#121522;color:#e7e7ef}
.tool-form button{background:#7c5cff;color:#fff;border:none;border-radius:8px;padding:10px 14px;cursor:pointer;font-weight:600}
.tool-results{background:#121522;border:1px solid #23283c;border-radius:10px;padding:12px;margin-top:12px}
.tools-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(280px,1fr));gap:16px}
.tool-card{background:var(--card);border:1px solid #1e2230;border-radius:12px;padding:16px}
.tool-card h3{margin-top:0}
.sharebar{display:flex;gap:10px;align-items:center;margin:16px 0}
.sharebar button{padding:8px 12px;border:1px solid #2a2f45;border-radius:8px;background:#121522;color:#e7e7ef;cursor:pointer}
.sharebar a{padding:8px 12px;border:1px solid #2a2f45;border-radius:8px;background:#121522;color:#e7e7ef}

/* v14: simplify article card & remove nested rings */
.post .content{
  background: var(--card);
  border: 1px solid #1e2230;
  border-radius: 16px;
  padding: 28px;
  box-shadow: none;
}
.section{
  background: transparent;
  border: none;
  padding: 0;
}
/* Remove any obsolete TOC styles */
.toc, .toc-sticky { display: none !important; }

/* v15 layout cleanup */
.container{max-width:var(--max);margin:0 auto;padding:clamp(14px,4vw,24px)}
.post .content{background:var(--card);border:1px solid #1e2230;border-radius:16px;padding:clamp(18px,3.5vw,28px);box-shadow:none}
.section{background:transparent;border:none;padding:0}
/* ensure normal wrapping */
.post p, .post li{word-break:normal;overflow-wrap:anywhere}
/* hamburger */
.navbar{position:sticky;top:0;z-index:10}
.navbar .menu-toggle{display:none;background:#121522;color:#e7e7ef;border:1px solid #2a2f45;border-radius:8px;padding:8px 10px;cursor:pointer}
@media(max-width:860px){
  .navbar .menu{display:none;flex-direction:column;background:#0f1322;border-top:1px solid #1e2230;margin-top:8px;padding:8px;border-radius:8px}
  .navbar.open .menu{display:flex}
  .navbar .menu-toggle{display:inline-block;margin-left:auto}
  .navbar .menu a{margin:8px 0}
}

/* v16: single card + fluid type + polished menu */
:root{ --text-size: clamp(1rem, 1.6vw, 1.09rem); }
.post{font-size: var(--text-size); line-height: 1.8}
.post .content{
  background: var(--card);
  border: none;
  border-radius: 14px;
  padding: clamp(16px, 3.6vw, 26px);
  box-shadow: 0 6px 18px rgba(0,0,0,.18);
}
/* remove ring around sharebar */
.sharebar{background: transparent; border:none; padding:0; margin-bottom:12px}
.sharebar a, .sharebar button{border:1px solid #2a2f45;border-radius:8px;background:#121522;color:#e7e7ef;padding:8px 12px}
/* clean spacing for headings */
.post h2{margin:24px 0 10px; border-bottom:1px dashed #2a2f45; padding-bottom:6px}
/* container width & padding */
.container{max-width: 960px; width:100%; margin:0 auto; padding:clamp(14px,4vw,24px)}
/* ensure normal wrapping */
.post p, .post li{word-break:normal; overflow-wrap:anywhere}
/* hamburger polish */
@media(max-width:860px){
  .navbar .menu{transition:max-height .2s ease; overflow:hidden; max-height:0}
  .navbar.open .menu{max-height:400px}
  .navbar .menu a{padding:10px 0}
  .navbar .menu-toggle{padding:10px 12px}
}


/* v17 Light Theme — airy like CurlyHairGuide */
:root{
  --bg:#FAFAFC; --text:#111318; --muted:#626a7a; --brand:#0a66c2; --brand-2:#16a34a;
  --card:#ffffff; --line:#e9ebf0; --max: 1040px;
}
html,body{background:var(--bg);color:var(--text)}
a{color:var(--brand)}
a:hover{opacity:.9;text-decoration:underline}
/* Navbar */
.navbar{position:sticky;top:0;background:rgba(255,255,255,.9);backdrop-filter:saturate(120%) blur(8px);
  border-bottom:1px solid var(--line);}
.navbar a.brand{color:#0f172a;font-weight:800;letter-spacing:.2px}
.navbar .menu a{color:#334155}
/* Container */
.container{max-width:var(--max);margin:0 auto;padding:clamp(16px,3.8vw,28px)}
/* Post layout: flat, no rings */
.post{font-size: clamp(1rem, 1.45vw, 1.1rem); line-height:1.85}
.post h1{font-size: clamp(1.8rem, 3.5vw, 2.25rem); line-height:1.2; margin: 4px 0 12px}
.post .meta{color:var(--muted);font-size:.94rem;margin-bottom:10px}
/* Make content flat and airy */
.post .content{
  background: transparent;
  border: none;
  border-radius: 0;
  padding: 0;
  box-shadow: none;
  max-width: 760px;
}
/* Headings */
.post h2{margin:26px 0 12px; font-size: clamp(1.25rem, 2.4vw, 1.45rem); border-bottom:1px solid var(--line); padding-bottom:8px}
.post h3{margin:18px 0 8px; font-size: clamp(1.1rem, 2vw, 1.2rem)}
/* Lists and paragraphs */
.post p, .post li{color:#1f2937; word-break:normal; overflow-wrap:anywhere}
.post ul, .post ol{padding-left:20px}
/* Sharebar minimal */
.sharebar{display:flex;gap:10px;align-items:center;margin:16px 0 12px}
.sharebar a, .sharebar button{border:1px solid var(--line);background:#fff;color:#0f172a;padding:8px 12px;border-radius:10px}
/* Cards grid */
.card{background:#fff;border:1px solid var(--line); border-radius:14px}
.card h3{color:#0f172a}
/* Tools */
.tool-form{background:#fff;border:1px solid var(--line)}
.tool-results{background:#f7f9fc;border:1px solid var(--line)}
.tool-card{background:#fff;border:1px solid var(--line)}
/* Footer */
.footer{background:#fff;border-top:1px solid var(--line);color:var(--muted)}
/* Mobile nav polish */
.navbar .menu-toggle{background:#fff;color:#0f172a;border:1px solid var(--line);border-radius:10px}
@media(max-width:860px){
  .navbar .menu{background:#fff;border:1px solid var(--line)}
  .navbar .menu a{color:#0f172a}
}