/* ============================================================
   Dev Journal — shared design system
   Editorial polish over the existing orange/purple palette.
   ============================================================ */

/* ---- Tokens ---------------------------------------------------- */
:root{
  --bg:#fbfaf7; --surface:#ffffff; --surface-2:#f7f4ee;
  --fg:#1a1625; --fg-body:#39323f; --fg-dim:#6b6478; --fg-soft:#a59fb0;
  --border:#ece8e1; --border-strong:#ddd6ca;
  --accent:#ff7a45; --accent-2:#7c5cff;
  --tag-bg:#f4f0ea; --tag-fg:#3a2e4a;
  --shadow-sm:0 1px 2px rgba(20,18,33,.04),0 4px 14px rgba(20,18,33,.05);
  --shadow:0 2px 4px rgba(20,18,33,.05),0 16px 38px rgba(20,18,33,.09);
  --dot:rgba(26,22,37,.055);
  --wash-1:rgba(255,122,69,.24); --wash-2:rgba(124,92,255,.22);
}
html.dark{
  --bg:#0f0d18; --surface:#171425; --surface-2:#1b1729;
  --fg:#f0ecf7; --fg-body:#cfc9da; --fg-dim:#9590a8; --fg-soft:#5b556b;
  --border:#231f33; --border-strong:#322c47;
  --accent:#ff8a5a; --accent-2:#9d83ff;
  --tag-bg:#1e1a2e; --tag-fg:#c8c0db;
  --shadow-sm:0 1px 2px rgba(0,0,0,.4),0 4px 14px rgba(0,0,0,.32);
  --shadow:0 2px 4px rgba(0,0,0,.4),0 18px 44px rgba(0,0,0,.55);
  --dot:rgba(255,255,255,.045);
  --wash-1:rgba(255,138,90,.16); --wash-2:rgba(157,131,255,.17);
}

/* ---- Base ------------------------------------------------------ */
*{box-sizing:border-box;margin:0;padding:0}
html{background:var(--bg)}
body{
  background:transparent;color:var(--fg);
  font-family:'Space Grotesk',system-ui,-apple-system,sans-serif;
  font-size:15px;line-height:1.55;-webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}
a{color:inherit;text-decoration:none}
::selection{background:color-mix(in oklab,var(--accent) 32%,transparent)}

/* page texture + soft wash behind the header */
body::before{
  content:'';position:fixed;inset:0;z-index:-2;pointer-events:none;
  background-image:radial-gradient(var(--dot) 1px,transparent 1.4px);
  background-size:24px 24px;
}
body::after{
  content:'';position:fixed;top:0;left:0;right:0;height:560px;z-index:-1;
  pointer-events:none;
  background:
    radial-gradient(680px 340px at 14% -10%,var(--wash-1),transparent 72%),
    radial-gradient(620px 320px at 86% -6%,var(--wash-2),transparent 72%);
}

/* ---- Reveal-on-scroll ----------------------------------------- */
[data-reveal]{opacity:0;transform:translateY(16px);
  transition:opacity .55s cubic-bezier(.2,.6,.2,1),transform .55s cubic-bezier(.2,.6,.2,1)}
[data-reveal].in{opacity:1;transform:none}
@media(prefers-reduced-motion:reduce){
  [data-reveal]{opacity:1!important;transform:none!important;transition:none!important}
  *{scroll-behavior:auto!important}
}

/* ---- Brand ----------------------------------------------------- */
.brand{font-weight:700;letter-spacing:-.02em;color:var(--fg);display:inline-block}
.brand .dot{color:var(--accent)}
.brand-lg{font-size:15px;text-transform:lowercase;color:var(--fg-dim);font-weight:600}
.brand-lg .dot{color:var(--accent)}

/* ---- Buttons --------------------------------------------------- */
.btn{
  padding:10px 15px;border:1px solid var(--border);background:var(--surface);
  color:var(--fg);border-radius:11px;cursor:pointer;font:inherit;font-size:13px;
  display:inline-flex;align-items:center;gap:7px;
  transition:border-color .15s,color .15s,transform .15s,background .15s;
}
.btn:hover{border-color:var(--accent);color:var(--accent);transform:translateY(-1px)}
.btn:active{transform:translateY(0)}
.btn.primary{background:var(--accent);border-color:var(--accent);color:#fff}
.btn.primary:hover{filter:brightness(1.07);color:#fff}

.view-toggle{display:inline-flex;background:var(--surface);border:1px solid var(--border);
  border-radius:11px;overflow:hidden}
.view-toggle button{padding:10px 13px;background:transparent;border:none;color:var(--fg-dim);
  cursor:pointer;font:inherit;font-size:13px;transition:background .15s,color .15s}
.view-toggle button:hover{color:var(--fg)}
.view-toggle button.active{background:var(--accent);color:#fff}

.theme-toggle{
  padding:9px 13px;border:1px solid var(--border);background:var(--surface);color:var(--fg);
  border-radius:11px;cursor:pointer;font:inherit;font-size:13px;
  display:flex;align-items:center;justify-content:space-between;gap:10px;
  transition:border-color .15s;
}
.theme-toggle:hover{border-color:var(--accent)}
.theme-toggle [data-theme-icon]{font-size:14px}
.icon-btn{
  width:38px;height:38px;padding:0;justify-content:center;border-radius:11px;
  border:1px solid var(--border);background:var(--surface);color:var(--fg);cursor:pointer;
  display:inline-flex;align-items:center;font-size:15px;transition:border-color .15s,color .15s;
}
.icon-btn:hover{border-color:var(--accent);color:var(--accent)}

/* ---- Sticky topbar (article + topic pages) -------------------- */
.topbar{
  position:sticky;top:0;z-index:20;
  display:flex;justify-content:space-between;align-items:center;
  padding:13px 32px;border-bottom:1px solid var(--border);
  background:color-mix(in oklab,var(--bg) 84%,transparent);
  backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);
}
.topbar .brand{font-size:15px}
.topbar-right{display:flex;gap:8px}

/* ---- Pills / tags --------------------------------------------- */
.pill{
  font-size:12px;padding:5px 12px;border-radius:999px;
  background:var(--tag-bg);color:var(--tag-fg);
  display:inline-flex;align-items:center;gap:6px;
  transition:background .15s,color .15s,transform .15s;
}
.pill:hover{background:var(--accent);color:#fff;transform:translateY(-1px)}
.pill .swatch{width:7px;height:7px;border-radius:50%;background:var(--c,var(--accent))}
.pills{display:flex;flex-wrap:wrap;gap:7px}

/* ---- Feed: shared card chrome --------------------------------- */
.count{color:var(--fg-dim);font-size:13px;margin-bottom:16px;
  padding-bottom:12px;border-bottom:1px solid var(--border)}
.count strong{color:var(--fg);font-weight:600}

.list{display:flex;flex-direction:column;gap:12px}
.grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(272px,1fr));gap:14px}

/* list row — entire row is a link */
.item{
  position:relative;display:grid;grid-template-columns:46px 1fr auto;
  gap:16px;align-items:start;padding:18px 20px 18px 22px;
  background:var(--surface);border:1px solid var(--border);border-radius:16px;
  box-shadow:var(--shadow-sm);overflow:hidden;
  transition:transform .18s,box-shadow .18s,border-color .18s;
}
.item::before{
  content:'';position:absolute;left:0;top:0;bottom:0;width:3px;
  background:var(--c,var(--accent));opacity:.55;transition:opacity .18s;
}
.item:hover{transform:translateY(-2px);box-shadow:var(--shadow);
  border-color:color-mix(in oklab,var(--c,var(--accent)) 46%,var(--border))}
.item:hover::before{opacity:1}

/* grid card — vertical */
.card{
  position:relative;display:flex;flex-direction:column;gap:9px;
  padding:20px;background:var(--surface);border:1px solid var(--border);
  border-radius:16px;box-shadow:var(--shadow-sm);overflow:hidden;
  transition:transform .18s,box-shadow .18s,border-color .18s;
}
.card::before{content:'';position:absolute;left:0;right:0;top:0;height:3px;
  background:var(--c,var(--accent));opacity:.75;transition:opacity .18s}
.card:hover{transform:translateY(-3px);box-shadow:var(--shadow);
  border-color:color-mix(in oklab,var(--c,var(--accent)) 46%,var(--border))}
.card:hover::before{opacity:1}

/* topic icon swatch */
.t-icon{
  width:46px;height:46px;border-radius:13px;flex:0 0 46px;
  display:flex;align-items:center;justify-content:center;font-size:22px;
  background:color-mix(in oklab,var(--c,var(--accent)) 15%,var(--surface-2));
  border:1px solid color-mix(in oklab,var(--c,var(--accent)) 28%,transparent);
}
.card .t-icon{width:40px;height:40px;flex-basis:40px;font-size:19px;border-radius:11px}

.entry-body{display:flex;flex-direction:column;min-width:0}
.entry-meta{
  font-family:'JetBrains Mono',monospace;font-size:11.5px;color:var(--fg-dim);
  display:flex;align-items:center;gap:8px;flex-wrap:wrap;margin-bottom:5px;
}
.entry-meta .tag{color:color-mix(in oklab,var(--c,var(--accent)) 80%,var(--fg))}
.entry-title{display:block;font-size:16px;font-weight:600;letter-spacing:-.01em;
  color:var(--fg);line-height:1.35;transition:color .15s}
.item:hover .entry-title,.card:hover .entry-title{color:var(--accent)}
.card .entry-title{font-size:15.5px}
.entry-preview{
  color:var(--fg-dim);font-size:13.5px;line-height:1.6;margin-top:5px;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.card .entry-preview{-webkit-line-clamp:3}
.entry-tags{display:flex;flex-wrap:wrap;gap:6px;margin-top:10px}
.entry-tags span{font-family:'JetBrains Mono',monospace;font-size:11px;
  color:var(--fg-soft)}
.item-arrow{
  align-self:center;color:var(--fg-soft);font-size:17px;
  transition:transform .18s,color .18s;
}
.item:hover .item-arrow{transform:translateX(3px);color:var(--accent)}

/* ---- Empty state ---------------------------------------------- */
.empty{
  padding:54px 32px;text-align:center;color:var(--fg-dim);
  border:1px dashed var(--border-strong);border-radius:16px;
  background:var(--surface-2);
}
.empty .big{font-size:30px;display:block;margin-bottom:10px}

/* ---- Author link ---------------------------------------------- */
.namelink{
  color:var(--accent);text-decoration:none;white-space:nowrap;
  border-bottom:1px solid color-mix(in oklab,var(--accent) 38%,transparent);
  transition:border-color .15s;
}
.namelink:hover{border-bottom-color:var(--accent)}

/* ---- Footer ---------------------------------------------------- */
.site-foot{
  grid-column:1 / -1;
  border-top:1px solid var(--border);
  padding:22px 56px;
  display:flex;flex-wrap:wrap;gap:6px 16px;align-items:center;
  font-size:12.5px;color:var(--fg-dim);
}
.site-foot a{color:var(--fg-dim);transition:color .15s}
.site-foot a:hover{color:var(--accent)}
.site-foot .namelink{color:var(--fg-dim)}
.site-foot .namelink:hover{color:var(--accent)}

.page-foot{
  border-top:1px solid var(--border);margin-top:44px;padding-top:22px;
  display:flex;flex-wrap:wrap;gap:6px 14px;align-items:center;
  font-size:13px;color:var(--fg-dim);
}
.page-foot a{color:var(--fg-dim);transition:color .15s}
.page-foot a:hover{color:var(--accent)}
.page-foot .namelink{color:var(--accent)}
.page-foot .sep{color:var(--fg-soft)}

/* ---- Syntax highlighting (palette-aware, no theme file) -------- */
.hljs{color:var(--fg);background:transparent}
.hljs-comment,.hljs-quote{color:var(--fg-soft);font-style:italic}
.hljs-keyword,.hljs-selector-tag,.hljs-built_in,.hljs-name,.hljs-tag{color:var(--accent-2)}
.hljs-string,.hljs-attr,.hljs-template-tag,.hljs-addition,.hljs-regexp{color:var(--accent)}
.hljs-number,.hljs-literal,.hljs-symbol,.hljs-bullet{color:#d49a3a}
.hljs-title,.hljs-section,.hljs-title.function_{color:var(--fg);font-weight:600}
.hljs-attribute,.hljs-variable,.hljs-template-variable{color:var(--accent)}
.hljs-meta,.hljs-deletion{color:var(--fg-dim)}
.hljs-emphasis{font-style:italic}.hljs-strong{font-weight:700}

/* ---- Keyboard hints + shortcuts ------------------------------- */
kbd{
  font-family:'JetBrains Mono',ui-monospace,monospace;font-size:11px;line-height:1;
  color:var(--fg-dim);background:var(--surface-2);
  border:1px solid var(--border-strong);border-bottom-width:2px;border-radius:6px;
  padding:3px 6px;min-width:19px;display:inline-flex;align-items:center;
  justify-content:center;font-weight:500;
}
/* a subtle inline hint cluster placed near a control */
.khint{
  display:inline-flex;align-items:center;flex-wrap:wrap;gap:5px;
  font-family:'JetBrains Mono',monospace;font-size:11px;color:var(--fg-soft);
}
.khint kbd{font-size:10px;padding:2px 5px;min-width:16px;color:var(--fg-soft)}
/* keycap tucked inside a button — quieter than a standalone kbd */
.btn kbd,.theme-toggle kbd,.topbar kbd{
  font-size:10px;padding:2px 5px;min-width:15px;border-radius:5px;
  background:color-mix(in oklab,currentColor 12%,transparent);
  border-color:transparent;color:inherit;opacity:.7;
}

/* floating help launcher — present on every screen */
.kbd-fab{
  position:fixed;right:18px;bottom:18px;z-index:40;
  width:34px;height:34px;border-radius:10px;cursor:pointer;
  display:flex;align-items:center;justify-content:center;
  background:var(--surface);border:1px solid var(--border);color:var(--fg-dim);
  box-shadow:var(--shadow-sm);font-family:'JetBrains Mono',monospace;
  font-size:15px;font-weight:700;
  transition:border-color .15s,color .15s,transform .15s;
}
.kbd-fab:hover{border-color:var(--accent);color:var(--accent);transform:translateY(-2px)}

/* j/k roving highlight on feed entries */
.item.kbd-on,.card.kbd-on{
  border-color:var(--accent);
  box-shadow:0 0 0 3px color-mix(in oklab,var(--accent) 22%,transparent),var(--shadow);
}
.item.kbd-on::before,.card.kbd-on::before{opacity:1}
.item.kbd-on .entry-title,.card.kbd-on .entry-title{color:var(--accent)}

/* shortcuts overlay */
.kbd-scrim{
  position:fixed;inset:0;z-index:50;display:none;
  align-items:center;justify-content:center;padding:24px;
  background:color-mix(in oklab,var(--bg) 38%,rgba(8,6,16,.6));
  backdrop-filter:blur(4px);-webkit-backdrop-filter:blur(4px);
}
.kbd-scrim.open{display:flex}
.kbd-modal{
  width:min(440px,100%);background:var(--surface);
  border:1px solid var(--border-strong);border-radius:18px;
  box-shadow:var(--shadow);overflow:hidden;
  animation:kbd-pop .16s cubic-bezier(.2,.7,.3,1);
}
@keyframes kbd-pop{from{opacity:0;transform:translateY(8px) scale(.98)}to{opacity:1;transform:none}}
.kbd-modal-h{
  display:flex;align-items:center;justify-content:space-between;
  padding:15px 20px;border-bottom:1px solid var(--border);
}
.kbd-modal-h h2{font-size:15px;font-weight:600;letter-spacing:-.01em;color:var(--fg)}
.kbd-modal-h .x{
  cursor:pointer;color:var(--fg-soft);font-size:15px;line-height:1;
  background:none;border:none;padding:4px;transition:color .15s;
}
.kbd-modal-h .x:hover{color:var(--accent)}
.kbd-rows{padding:6px 12px 12px;display:flex;flex-direction:column}
.kbd-row{
  display:flex;align-items:center;justify-content:space-between;
  gap:16px;padding:9px 8px;
}
.kbd-row+.kbd-row{border-top:1px solid color-mix(in oklab,var(--border) 65%,transparent)}
.kbd-row .desc{font-size:13px;color:var(--fg-body)}
.kbd-row .combo{display:flex;gap:5px;flex-shrink:0}
.kbd-modal-foot{
  padding:11px 20px;border-top:1px solid var(--border);
  font-family:'JetBrains Mono',monospace;font-size:11px;color:var(--fg-soft);
}
@media(prefers-reduced-motion:reduce){.kbd-modal{animation:none}}

/* ---- Responsive ------------------------------------------------ */
/* small screens: collapse the theme toggle to an icon-only button so
   it stops crowding the header text */
@media(max-width:640px){
  .theme-toggle{padding:0;width:38px;height:38px;justify-content:center;gap:0}
  .theme-toggle [data-theme-label],.theme-toggle kbd{display:none}
  .theme-toggle [data-theme-icon]{font-size:16px}
}
@media(max-width:560px){
  .topbar{padding:12px 18px}
  .kbd-fab{right:14px;bottom:14px}
}