/* ═══════════════════════════════════════════════════════════
   blog.msharsha.com — long-form reading theme
   Own identity (HS wordmark + portfolio purple). Generic
   editorial reading layout — NOT a clone of any platform.
   ═══════════════════════════════════════════════════════════ */

*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}

:root{
  /* Ink + surface */
  --ink:#1f1f24;
  --ink-2:#5c5c66;
  --ink-3:#9a9aa3;
  color-scheme:light;
  --bg:#ffffff;
  --surface:#f6f6fb;
  --chrome:#edecf6;
  --border:rgba(20,20,40,0.10);
  --card-bg:#ffffff;
  --header-bg:rgba(237,236,246,0.9);
  --mono-bg:#15151a;
  --shadow:rgba(20,20,40,0.10);
  --accent-hover:#4a40c4;
  --on-accent:#ffffff;

  /* Brand — carried over from the portfolio so the two feel related */
  --accent:#5b50d6;       /* readable purple for links on white */
  --accent-soft:#8B83E8;  /* portfolio purple, used for accents/monogram */
  --accent-tint:rgba(139,131,232,0.12);

  /* Type */
  --serif:'Source Serif 4', Georgia, 'Times New Roman', serif;
  --sans:'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', system-ui, sans-serif;
  --mono:'JetBrains Mono', 'Menlo', 'Monaco', 'Courier New', monospace;

  --max:700px;
}

/* Dark theme — applied when the no-flash script sets data-theme="dark"
   (from the visitor's saved choice or, on first visit, their OS setting) */
:root[data-theme="dark"]{
  color-scheme:dark;
  --ink:#e9e9f0;
  --ink-2:#a6a6b3;
  --ink-3:#71717e;
  --bg:#0f0f14;
  --surface:#181820;
  --chrome:#15151c;
  --border:rgba(255,255,255,0.13);
  --card-bg:#16161d;
  --header-bg:rgba(18,18,24,0.85);
  --mono-bg:#2a2a36;
  --shadow:rgba(0,0,0,0.5);
  --accent:#a79ef4;
  --accent-soft:#8B83E8;
  --accent-tint:rgba(139,131,232,0.20);
  --accent-hover:#b6aef7;
  --on-accent:#15151c;
}

html{-webkit-text-size-adjust:100%}
body{
  background:var(--bg);
  color:var(--ink);
  font-family:var(--serif);
  font-size:20px;
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
  /* sticky footer: header / content / footer — content takes the slack
     so the footer pins to the bottom even when a page is short */
  min-height:100vh;
  display:grid;
  grid-template-rows:auto 1fr auto;
  grid-template-columns:minmax(0,1fr); /* clamp column to viewport so wide kids (code blocks) can't stretch the page */
}
site-header,site-footer{display:block;min-width:0}
main{min-width:0}

/* thin brand bar at the very top */
body::before{
  content:'';position:fixed;top:0;left:0;right:0;height:3px;z-index:200;
  background:linear-gradient(90deg,var(--accent-soft),var(--accent));
}

a{color:var(--accent);text-decoration:none}
a:hover{text-decoration:underline}

/* ── SITE HEADER (rendered by <site-header> web component) ── */
.site-header{
  position:sticky;top:3px;z-index:100;
  background:var(--header-bg);backdrop-filter:saturate(180%) blur(10px);
  border-bottom:1px solid var(--border);
}
.site-header .inner{
  padding:14px clamp(20px,4vw,52px);
  display:flex;align-items:center;justify-content:space-between;
}
.brand{display:flex;align-items:center;gap:10px;font-family:var(--sans);font-weight:700;font-size:16px;color:var(--ink);letter-spacing:-.01em}
.brand:hover{text-decoration:none}
.brand .mono{
  width:28px;height:28px;border-radius:7px;flex-shrink:0;
  display:flex;align-items:center;justify-content:center;
  font-family:var(--sans);font-size:13px;font-weight:700;color:#fff;
  background:var(--mono-bg);border:1px solid var(--accent-soft);
}
.brand .mono em{color:var(--accent-soft);font-style:normal}
.nav{display:flex;align-items:center;gap:22px;font-family:var(--sans);font-size:14px}
.nav a{color:var(--ink-2)}
.nav a:hover{color:var(--ink);text-decoration:none}
.theme-toggle{position:relative;flex-shrink:0;width:48px;height:26px;padding:0;border:1px solid var(--border);border-radius:100px;background:var(--surface);cursor:pointer;transition:background .2s,border-color .2s}
.theme-toggle:hover{border-color:var(--accent-soft)}
.theme-toggle .knob{position:absolute;top:2px;left:2px;width:20px;height:20px;border-radius:50%;background:var(--accent);color:var(--on-accent);display:flex;align-items:center;justify-content:center;transition:transform .22s cubic-bezier(0.22,1,0.36,1),background .2s}
.theme-toggle .knob svg{width:12px;height:12px;display:block}
:root[data-theme="dark"] .theme-toggle .knob{transform:translateX(22px)}
@media(max-width:520px){.nav{gap:16px;font-size:13px}.brand span.full{display:none}}

/* ── SITE FOOTER (rendered by <site-footer> web component) ── */
.site-footer{
  border-top:1px solid var(--border);margin-top:80px;background:var(--chrome);
}
.site-footer .inner{
  padding:36px clamp(20px,4vw,52px);
  display:flex;flex-wrap:wrap;gap:18px;align-items:center;justify-content:space-between;
  font-family:var(--sans);font-size:14px;color:var(--ink-2);
}
.site-footer a{color:var(--ink-2)}
.site-footer a:hover{color:var(--ink)}
.site-footer .flinks{display:flex;gap:20px;flex-wrap:wrap}

/* ── PAGE WRAP ── */
.page{width:100%;max-width:var(--max);margin:0 auto;padding:56px 24px 40px}

/* ════════ INDEX — MASTHEAD + CARD FEED ════════ */
.masthead{max-width:760px;margin:0 auto;padding:60px 24px 30px}
.masthead .eyebrow{font-family:var(--sans);font-size:12.5px;font-weight:600;letter-spacing:.16em;text-transform:uppercase;color:var(--accent);margin-bottom:14px}
.masthead h1{font-family:var(--serif);font-size:clamp(34px,6vw,48px);font-weight:700;letter-spacing:-.025em;line-height:1.06;margin-bottom:12px;text-wrap:balance}
.masthead p{font-family:var(--sans);font-size:15px;color:var(--ink-2);line-height:1.6;max-width:480px;text-wrap:balance}

.feed{max-width:820px;margin:0 auto;padding:14px 24px 0;display:flex;flex-direction:column;gap:18px;list-style:none}
.card{display:flex;gap:22px;align-items:stretch;background:var(--card-bg);border:1px solid var(--border);border-radius:14px;padding:18px;transition:transform .18s ease,box-shadow .18s ease,border-color .18s ease}
.card:hover{text-decoration:none;transform:translateY(-3px);box-shadow:0 14px 36px var(--shadow);border-color:var(--accent-soft)}
.card-thumb{flex:0 0 220px;border-radius:10px;overflow:hidden;background:#0e0e13}
.card-thumb picture{display:block;width:100%;height:100%}
.card-thumb img{width:100%;height:100%;min-height:140px;object-fit:cover;object-position:left center;display:block}
.card-body{flex:1;min-width:0;display:flex;flex-direction:column;padding:6px 8px 6px 0}
.card-top{display:flex;align-items:center;gap:12px;margin-bottom:10px}
.chip{font-family:var(--sans);font-size:12px;font-weight:600;color:var(--accent);background:var(--accent-tint);padding:4px 12px;border-radius:100px}
.card-date{font-family:var(--sans);font-size:13px;color:var(--ink-3)}
.card-title{font-family:var(--serif);font-size:24px;font-weight:700;line-height:1.22;letter-spacing:-.01em;color:var(--ink);margin-bottom:8px}
.card:hover .card-title{color:var(--accent)}
.card-dek{font-size:17px;color:var(--ink-2);line-height:1.5;margin-bottom:16px}
.card-foot{display:flex;align-items:center;justify-content:space-between;margin-top:auto;font-family:var(--sans);font-size:13.5px;color:var(--ink-3)}
.card-foot .arrow{color:var(--accent);font-weight:600}
@media(max-width:560px){
  .card{flex-direction:column;gap:0;padding:0;overflow:hidden}
  .card-thumb{flex:0 0 auto}
  .card-thumb img{min-height:0;aspect-ratio:2/1}
  .card-body{padding:18px 20px 20px}
}

/* Article cover / hero image */
.cover-wrap{display:block;margin:8px 0 40px}
.cover{display:block;width:100%;height:auto;border-radius:10px;margin:0}

/* ════════ ARTICLE ════════ */
.tags{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:26px}
.tag{font-family:var(--sans);font-size:12.5px;color:var(--ink-2);background:var(--surface);border:1px solid var(--border);padding:5px 13px;border-radius:100px}

article h1, .page > h1{
  font-family:var(--serif);font-size:clamp(30px,5.2vw,44px);font-weight:700;
  line-height:1.14;letter-spacing:-.02em;color:var(--ink);margin-bottom:16px;
}
.subtitle{font-family:var(--serif);font-size:22px;font-weight:400;line-height:1.5;color:var(--ink-2);margin-bottom:34px}

/* Author / meta row */
.byline{display:flex;align-items:center;gap:13px;padding-bottom:24px;margin-bottom:8px}
.avatar{
  width:46px;height:46px;border-radius:50%;flex-shrink:0;
  display:flex;align-items:center;justify-content:center;color:#fff;
  font-family:var(--sans);font-size:16px;font-weight:700;
  background:linear-gradient(135deg,var(--accent-soft) 0%,var(--accent) 100%);
}
.byline .who{font-family:var(--sans);font-size:15px;font-weight:600;color:var(--ink)}
.byline .meta{font-family:var(--sans);font-size:13.5px;color:var(--ink-2);margin-top:2px}
.byline .meta a{color:var(--ink-2);text-decoration:underline}

/* Canonical / cross-post note */
.crosspost{
  font-family:var(--sans);font-size:13.5px;color:var(--ink-2);
  background:var(--surface);border:1px solid var(--border);border-radius:8px;
  padding:12px 16px;margin:0 0 40px;line-height:1.5;
}

/* Body */
article{overflow-wrap:break-word}
.refs a{word-break:break-word}
article p{margin-bottom:28px}
article h2{font-family:var(--serif);font-size:28px;font-weight:700;line-height:1.25;letter-spacing:-.01em;margin:54px 0 16px}
article h3{font-family:var(--serif);font-size:23px;font-weight:700;line-height:1.3;margin:40px 0 12px}
article ul,article ol{margin:0 0 28px 1.2em}
article li{margin-bottom:10px}

/* Tables (GFM) — wrapped so wide tables scroll instead of stretching the page */
.table-wrap{overflow-x:auto;margin:0 0 28px;border:1px solid var(--border);border-radius:10px}
article table{width:100%;border-collapse:collapse;font-family:var(--sans);font-size:15px}
article th,article td{padding:11px 16px;text-align:left;vertical-align:top;border-bottom:1px solid var(--border)}
article thead th{font-weight:600;color:var(--ink);background:var(--surface)}
article tbody td{color:var(--ink-2)}
article tbody tr:last-child td{border-bottom:none}
strong{font-weight:700}
em{font-style:italic}

/* Pull quote */
.pull-quote{position:relative;margin:44px 0;padding-left:24px;font-size:24px;line-height:1.5;font-style:italic;color:var(--ink)}
.pull-quote::before{content:'';position:absolute;left:0;top:4px;bottom:4px;width:3px;background:var(--accent)}

/* Figures / diagrams (break slightly wider than the text column) */
figure{margin:44px -20px;text-align:center}
figure img,figure svg{width:100%;height:auto;display:block;border-radius:6px}
.inline-diagram{overflow-x:auto;background:var(--surface);border:1px solid var(--border);border-radius:8px;padding:20px}
figcaption{font-family:var(--sans);font-size:13px;color:var(--ink-3);margin-top:12px;line-height:1.5;padding:0 24px}

/* Code */
code{background:var(--surface);padding:2px 6px;border-radius:4px;font-family:var(--mono);font-size:.82em;border:1px solid var(--border)}
pre{background:#15151a;color:#e8e8ee;border-radius:8px;padding:22px 24px;margin:32px -8px;overflow-x:auto;font-family:var(--mono);font-size:14px;line-height:1.7}
pre code{background:none;border:none;padding:0;font-size:14px;color:inherit}

/* Section divider */
.divider{text-align:center;margin:46px 0;color:var(--ink-3);letter-spacing:.4em;font-size:13px;user-select:none}

/* References */
.refs{border-top:1px solid var(--border);padding-top:28px;margin-top:52px}
.refs h4{font-family:var(--sans);font-size:12.5px;font-weight:700;letter-spacing:.08em;text-transform:uppercase;color:var(--ink-3);margin-bottom:14px}
.refs ul{list-style:none;margin:0;padding:0;font-family:var(--sans);font-size:13.5px;line-height:1.95;color:var(--ink-2)}
.refs a{color:var(--ink-2);text-decoration:underline}
.refs a:hover{color:var(--ink)}

/* End-of-post CTA — your own, not a clap bar */
.endcta{border-top:1px solid var(--border);margin-top:52px;padding-top:32px;font-family:var(--sans)}
.endcta .h{font-family:var(--serif);font-size:22px;font-weight:700;color:var(--ink);margin-bottom:10px}
.endcta p{font-size:16px;color:var(--ink-2);line-height:1.6;margin-bottom:18px}
.endcta .btns{display:flex;gap:12px;flex-wrap:wrap}
.endcta .btn{display:inline-flex;align-items:center;gap:7px;font-size:14px;padding:9px 18px;border-radius:100px;border:1px solid var(--border);color:var(--ink);transition:background .2s,border-color .2s}
.endcta .btn:hover{text-decoration:none;background:var(--accent-tint);border-color:var(--accent-soft)}
.endcta .btn.primary{background:var(--accent);color:var(--on-accent);border-color:var(--accent)}
.endcta .btn.primary:hover{background:var(--accent-hover)}

@media(max-width:480px){
  body{font-size:18px}
  .subtitle{font-size:18px}
  figure{margin:36px -8px}
  pre{margin:28px -8px;padding:16px 14px}
}