/* ==========================================================================
   Kaleidoscope — personal tech journal
   Single stylesheet. No external fonts, icons, or frameworks.
   Sections: 01 tokens / 02 base / 03 atmosphere / 04 chrome / 05 home
             06 inner pages / 07 essay / 08 overlays / 09 motion / 10 responsive
   ========================================================================== */

/* 01 · Tokens -------------------------------------------------------------- */
:root {
  color-scheme: light dark;
  --bg: #070a16;
  --bg-soft: #0c1124;
  --surface: rgba(255, 255, 255, .045);
  --surface-2: rgba(255, 255, 255, .082);
  --surface-3: rgba(255, 255, 255, .13);
  --surface-solid: #101630;
  --border: rgba(255, 255, 255, .11);
  --border-strong: rgba(255, 255, 255, .26);
  --text: #eef2ff;
  --text-2: #c5cde7;
  --muted: #8794b6;
  --faint: #606d90;
  --accent: #8b7cff;
  --cyan: #4de3ff;
  --pink: #ff7ac6;
  --mint: #7cf6c8;
  --amber: #ffc36b;
  --violet: #8b7cff;
  --glass-blur: 22px;
  --r-xs: 10px;
  --r-sm: 14px;
  --r: 20px;
  --r-lg: 30px;
  --shadow: 0 26px 70px rgba(2, 4, 16, .48);
  --shadow-sm: 0 10px 34px rgba(2, 4, 16, .32);
  --ease: cubic-bezier(.22, 1, .36, 1);
  --t-fast: 160ms;
  --t-base: 260ms;
  --t-slow: 520ms;
  --maxw: 1240px;
  --font: "Segoe UI Variable Text", "Segoe UI", -apple-system, BlinkMacSystemFont, system-ui, "Helvetica Neue", Arial, sans-serif;
  --font-display: "Segoe UI Variable Display", "Segoe UI", -apple-system, BlinkMacSystemFont, system-ui, "Helvetica Neue", Arial, sans-serif;
  --font-serif: "Iowan Old Style", "Palatino Linotype", Palatino, Georgia, "Times New Roman", serif;
  --font-mono: "Cascadia Code", "SFMono-Regular", Consolas, "Liberation Mono", ui-monospace, monospace;
}



/* 02 · Base ---------------------------------------------------------------- */
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 108px; -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  min-height: 100vh;
  background: var(--bg);
  color: var(--text);
  font-family: var(--font);
  font-size: 16px;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
  transition: background-color var(--t-slow) var(--ease), color var(--t-slow) var(--ease);
}
body.is-locked { overflow: hidden; }
img, svg { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }
button, input { font: inherit; color: inherit; }
button { cursor: pointer; border: 0; background: none; }
::selection { background: rgba(139, 124, 255, .38); color: #fff; }
:focus-visible { outline: 2px solid var(--cyan); outline-offset: 3px; border-radius: 6px; }
.icon { width: 19px; height: 19px; flex: none; }

h1, h2, h3, h4 { font-family: var(--font-display); font-weight: 650; letter-spacing: -.035em; line-height: 1.1; margin: 0; }
p { margin: 0 0 1.15em; }
p:last-child { margin-bottom: 0; }
code { font-family: var(--font-mono); font-size: .88em; }

.skip-link {
  position: fixed; top: -60px; left: 20px; z-index: 400;
  padding: 12px 18px; border-radius: 12px; background: var(--accent); color: #fff;
  transition: top var(--t-fast) var(--ease);
}
.skip-link:focus { top: 16px; }

.glass {
  position: relative;
  background:
    linear-gradient(125deg, rgba(255, 255, 255, .12), rgba(255, 255, 255, 0) 36%, rgba(255, 255, 255, 0) 66%, rgba(255, 255, 255, .05)),
    linear-gradient(140deg, var(--surface-2), var(--surface));
  -webkit-backdrop-filter: blur(var(--glass-blur)) saturate(170%);
  backdrop-filter: blur(var(--glass-blur)) saturate(170%);
  border: 1px solid var(--border);
  border-radius: var(--r);
  box-shadow: var(--shadow), inset 0 1px 0 rgba(255, 255, 255, .18), inset 0 -1px 0 rgba(255, 255, 255, .035);
}
@supports not ((backdrop-filter: blur(2px)) or (-webkit-backdrop-filter: blur(2px))) {
  .glass { background: var(--surface-solid); }
}

.gradient-text {
  background: linear-gradient(100deg, var(--accent) 5%, var(--cyan) 48%, var(--pink) 95%);
  -webkit-background-clip: text; background-clip: text; color: transparent;
}
.eyebrow, .section-kicker {
  font-family: var(--font-mono); font-size: 11px; font-weight: 600;
  letter-spacing: .2em; text-transform: uppercase; color: var(--muted); margin: 0;
}
.section-kicker { color: var(--accent); }

/* 03 · Atmosphere ---------------------------------------------------------- */
.aurora { position: fixed; inset: 0; z-index: 0; overflow: hidden; pointer-events: none; background: radial-gradient(120% 90% at 50% -20%, var(--bg-soft), var(--bg) 70%); }
.blob { position: absolute; width: 46vmax; height: 46vmax; border-radius: 50%; filter: blur(90px); will-change: transform; }
.blob--1 { top: -18vmax; left: -12vmax; background: radial-gradient(circle, rgba(139, 124, 255, .52), transparent 66%); animation: drift1 30s ease-in-out infinite alternate; }
.blob--2 { top: 4vmax; right: -16vmax; background: radial-gradient(circle, rgba(77, 227, 255, .36), transparent 66%); animation: drift2 36s ease-in-out infinite alternate; }
.blob--3 { bottom: -22vmax; left: 24vmax; background: radial-gradient(circle, rgba(255, 122, 198, .3), transparent 66%); animation: drift3 42s ease-in-out infinite alternate; }
.blob--4 { bottom: 4vmax; right: 12vmax; width: 30vmax; height: 30vmax; background: radial-gradient(circle, rgba(124, 246, 200, .22), transparent 66%); animation: drift1 34s ease-in-out infinite alternate-reverse; }
.aurora-grid {
  position: absolute; inset: 0;
  background-image: linear-gradient(rgba(255, 255, 255, .028) 1px, transparent 1px), linear-gradient(90deg, rgba(255, 255, 255, .028) 1px, transparent 1px);
  background-size: 64px 64px;
  -webkit-mask-image: linear-gradient(to bottom, rgba(0, 0, 0, .7), transparent 75%);
  mask-image: linear-gradient(to bottom, rgba(0, 0, 0, .7), transparent 75%);
}
.grain {
  position: fixed; inset: 0; z-index: 2; pointer-events: none; opacity: .05;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='180' height='180'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.85' numOctaves='3' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='180' height='180' filter='url(%23n)'/%3E%3C/svg%3E");
}
.cursor-glow {
  position: fixed; top: 0; left: 0; z-index: 3; width: 460px; height: 460px;
  border-radius: 50%; pointer-events: none; opacity: 0;
  background: radial-gradient(circle, rgba(139, 124, 255, .16), rgba(77, 227, 255, .06) 42%, transparent 68%);
  transform: translate3d(-50%, -50%, 0); transition: opacity .5s var(--ease);
}
.cursor-glow.is-on { opacity: 1; }
.page-wipe {
  position: fixed; inset: 0; z-index: 190; pointer-events: none; opacity: 0;
  background: radial-gradient(80% 60% at 50% 50%, rgba(139, 124, 255, .5), rgba(77, 227, 255, .22) 45%, transparent 75%);
  transition: opacity var(--t-base) var(--ease);
}
body.is-leaving .page-wipe { opacity: .55; }
.reading-progress { position: fixed; top: 0; left: 0; right: 0; height: 3px; z-index: 120; pointer-events: none; }
.reading-progress span { display: block; height: 100%; width: 0; background: linear-gradient(90deg, var(--accent), var(--cyan), var(--pink)); box-shadow: 0 0 14px rgba(139, 124, 255, .7); transition: width .08s linear; }
body:not([data-page="post"]) .reading-progress { display: none; }

/* 04 · Chrome: header, nav, buttons, drawer -------------------------------- */
.site-header { position: sticky; top: 0; z-index: 60; padding: 16px 28px 0; }
.header-inner {
  max-width: var(--maxw); margin: 0 auto; height: 66px; padding: 0 12px 0 20px;
  display: flex; align-items: center; gap: 28px; border-radius: 999px;
  background: rgba(12, 17, 38, .5); border: 1px solid var(--border);
  -webkit-backdrop-filter: blur(20px) saturate(180%); backdrop-filter: blur(20px) saturate(180%);
  box-shadow: 0 12px 40px rgba(2, 4, 16, .28), inset 0 1px 0 rgba(255, 255, 255, .14);
  transition: background var(--t-base), border-color var(--t-base), box-shadow var(--t-base);
}
.site-header.is-scrolled .header-inner { background: rgba(9, 13, 30, .8); border-color: var(--border-strong); box-shadow: 0 16px 50px rgba(2, 4, 16, .45), inset 0 1px 0 rgba(255, 255, 255, .16); }
.brand { display: flex; align-items: center; gap: 11px; flex: none; }
.brand-mark { display: grid; place-items: center; width: 36px; height: 36px; border-radius: 12px; overflow: hidden; box-shadow: 0 6px 20px rgba(139, 124, 255, .28); transition: transform var(--t-base) var(--ease); }
.brand:hover .brand-mark { transform: rotate(-12deg) scale(1.06); }
.brand-mark img { width: 34px; height: 34px; }
.brand-word { font-family: var(--font-display); font-size: 17px; font-weight: 700; letter-spacing: -.045em; }
.brand-word span { color: var(--accent); }
.main-nav { display: flex; align-items: center; gap: 4px; margin-right: auto; }
.main-nav a { position: relative; padding: 9px 14px; border-radius: 999px; font-size: 14px; font-weight: 550; color: var(--text-2); transition: color var(--t-fast), background var(--t-fast); }
.main-nav a::after { content: ""; position: absolute; left: 14px; right: 14px; bottom: 5px; height: 1.5px; background: linear-gradient(90deg, var(--accent), var(--cyan)); transform: scaleX(0); transform-origin: left; transition: transform var(--t-base) var(--ease); }
.main-nav a:hover, .main-nav a.is-active { color: var(--text); }
.main-nav a:hover::after, .main-nav a.is-active::after { transform: scaleX(1); }
.main-nav a.is-active { background: var(--surface-2); }
.header-actions { display: flex; align-items: center; gap: 6px; }
.icon-btn { display: grid; place-items: center; width: 38px; height: 38px; border-radius: 12px; color: var(--text-2); border: 1px solid transparent; transition: background var(--t-fast), color var(--t-fast), border-color var(--t-fast), transform var(--t-fast); }
.icon-btn:hover { background: var(--surface-3); color: var(--text); border-color: var(--border); transform: translateY(-2px); }
.menu-btn { display: none; }

.btn { display: inline-flex; align-items: center; justify-content: center; gap: 10px; padding: 14px 24px; border-radius: 999px; font-size: 14px; font-weight: 650; letter-spacing: -.01em; white-space: nowrap; transition: transform var(--t-base) var(--ease), box-shadow var(--t-base) var(--ease), background var(--t-base), border-color var(--t-base), color var(--t-base); }
.btn .icon { width: 17px; height: 17px; transition: transform var(--t-base) var(--ease); }
.btn:hover .icon { transform: translateX(4px); }
.btn-primary { color: #fff; background: linear-gradient(110deg, #7b68f5, #9f6df0 55%, #5f9cff); box-shadow: 0 12px 34px rgba(123, 104, 245, .36), inset 0 1px 0 rgba(255, 255, 255, .3); }
.btn-primary:hover { transform: translateY(-3px); box-shadow: 0 18px 44px rgba(123, 104, 245, .5), inset 0 1px 0 rgba(255, 255, 255, .4); }
.btn-glass { color: var(--text); background: var(--surface-2); border: 1px solid var(--border); -webkit-backdrop-filter: blur(12px); backdrop-filter: blur(12px); }
.btn-glass:hover { transform: translateY(-3px); background: var(--surface-3); border-color: var(--border-strong); }
.btn-small { padding: 10px 17px; font-size: 13px; }

.chip { --chip: var(--accent); display: inline-flex; align-items: center; padding: 5px 12px; border-radius: 999px; font-size: 11px; font-weight: 700; letter-spacing: .07em; text-transform: uppercase; color: var(--chip); background: rgba(255, 255, 255, .06); border: 1px solid var(--border); background: color-mix(in srgb, var(--chip) 14%, transparent); border-color: color-mix(in srgb, var(--chip) 30%, transparent); transition: transform var(--t-fast), filter var(--t-fast); }
a.chip:hover { transform: translateY(-2px); filter: brightness(1.2); }
.chip--violet { --chip: #8b7cff; } .chip--cyan { --chip: #4de3ff; }
.chip--mint { --chip: #7cf6c8; } .chip--pink { --chip: #ff7ac6; }
.chip--amber { --chip: #ffc36b; } .chip--indigo { --chip: #6f8cff; }

.drawer-scrim { position: fixed; inset: 0; z-index: 70; background: rgba(4, 6, 16, .6); -webkit-backdrop-filter: blur(6px); backdrop-filter: blur(6px); opacity: 0; transition: opacity var(--t-base); }
.drawer-scrim[hidden] { display: none; }
.drawer-scrim.is-open { opacity: 1; }
.mobile-drawer { position: fixed; top: 0; right: 0; bottom: 0; z-index: 80; width: min(360px, 88vw); padding: 22px; display: flex; flex-direction: column; gap: 4px; background: rgba(11, 16, 36, .9); -webkit-backdrop-filter: blur(28px) saturate(170%); backdrop-filter: blur(28px) saturate(170%); border-left: 1px solid var(--border); transform: translateX(102%); transition: transform .42s var(--ease); }
.mobile-drawer.is-open { transform: translateX(0); }
.drawer-head { display: flex; align-items: center; justify-content: space-between; margin-bottom: 22px; }
.drawer-label { font-family: var(--font-mono); font-size: 11px; letter-spacing: .2em; text-transform: uppercase; color: var(--muted); }
.mobile-drawer > a { display: flex; align-items: center; gap: 14px; padding: 17px 14px; border-radius: 16px; font-family: var(--font-display); font-size: 22px; font-weight: 600; border: 1px solid transparent; transition: background var(--t-fast), border-color var(--t-fast), transform var(--t-fast); }
.mobile-drawer > a span { font-family: var(--font-mono); font-size: 11px; color: var(--faint); }
.mobile-drawer > a .icon { margin-left: auto; width: 18px; height: 18px; opacity: .5; }
.mobile-drawer > a:hover, .mobile-drawer > a.is-active { background: var(--surface-2); border-color: var(--border); transform: translateX(4px); }
.mobile-drawer > a.is-active { color: var(--accent); }
.drawer-foot { margin-top: auto; padding: 20px 14px; border-top: 1px solid var(--border); display: flex; flex-direction: column; gap: 12px; font-size: 13px; color: var(--muted); }
.drawer-foot a { display: inline-flex; align-items: center; gap: 8px; color: var(--text-2); }
.drawer-foot .icon { width: 16px; height: 16px; }

/* Shared section rhythm */
.page-main { position: relative; z-index: 1; max-width: var(--maxw); margin: 0 auto; padding: 0 28px 120px; }
.section { margin-top: 108px; }
.section-head { display: flex; align-items: flex-end; justify-content: space-between; gap: 32px; margin-bottom: 34px; }
.section-title { font-size: clamp(2rem, 4vw, 3.1rem); margin-top: 12px; }
.section-note { max-width: 340px; font-size: 14px; color: var(--muted); margin: 0; text-align: right; }

/* 05 · Home ---------------------------------------------------------------- */
.hero { display: grid; grid-template-columns: minmax(0, 1.12fr) minmax(0, .88fr); gap: 40px; align-items: center; min-height: 620px; padding: 60px 0 40px; }
.eyebrow { display: flex; align-items: center; gap: 12px; }
.eyebrow-line { display: inline-block; width: 34px; height: 1px; background: var(--accent); }
.eyebrow-sep { color: var(--faint); }
.hero-title { position: relative; isolation: isolate; font-size: clamp(3.5rem, 8.4vw, 7rem); line-height: .98; margin: 26px 0 28px; }
.hero-ghost { position: absolute; top: 0; left: 0; z-index: -1; white-space: nowrap; color: transparent; -webkit-text-stroke: 1px var(--border-strong); transform: translate(16px, -14px); opacity: .8; pointer-events: none; }
.hero-line { display: block; position: relative; }
.hero-accent { background: linear-gradient(100deg, var(--accent) 5%, var(--cyan) 52%, var(--pink)); -webkit-background-clip: text; background-clip: text; color: transparent; }
.hero-accent em { font-family: var(--font-serif); font-style: italic; color: var(--text); -webkit-text-fill-color: var(--text); }
.hero-desc { max-width: 520px; font-size: 17px; color: var(--text-2); }
.hero-desc strong { color: var(--text); font-weight: 650; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 12px; margin: 32px 0 44px; }
.hero-stats { display: flex; flex-wrap: wrap; gap: 0; border-top: 1px solid var(--border); padding-top: 22px; }
.hero-stats > div { display: flex; flex-direction: column; padding-right: 34px; margin-right: 34px; border-right: 1px solid var(--border); }
.hero-stats > div:last-child { border-right: 0; margin-right: 0; padding-right: 0; }
.hero-stats b { font-family: var(--font-display); font-size: 26px; letter-spacing: -.04em; line-height: 1.1; }
.hero-stats span { font-size: 11px; letter-spacing: .1em; text-transform: uppercase; color: var(--muted); margin-top: 4px; }

.hero-visual { position: relative; height: 470px; display: grid; place-items: center; }
.prism { position: relative; width: min(100%, 420px); aspect-ratio: 1; display: grid; place-items: center; }
.prism-ring { position: absolute; border-radius: 50%; border: 1px solid rgba(255, 255, 255, .14); }
.ring--1 { inset: 0; border-style: dashed; border-color: rgba(139, 124, 255, .3); animation: spin 46s linear infinite; }
.ring--2 { inset: 9%; border-color: rgba(77, 227, 255, .28); animation: spin 32s linear infinite reverse; }
.ring--3 { inset: 19%; border-color: rgba(255, 122, 198, .24); animation: spin 26s linear infinite; }
.ring--4 { inset: 29%; border-color: rgba(255, 255, 255, .16); }
.prism-core { width: 43%; aspect-ratio: 1; border-radius: 50%; display: grid; place-items: center; background: radial-gradient(circle at 30% 25%, rgba(255, 255, 255, .3), rgba(139, 124, 255, .22) 40%, rgba(77, 227, 255, .1)); box-shadow: 0 0 90px rgba(139, 124, 255, .35), inset 0 2px 0 rgba(255, 255, 255, .45), inset 0 -20px 40px rgba(77, 227, 255, .18); animation: bob 7s ease-in-out infinite; }
.prism-glyph { font-family: var(--font-serif); font-style: italic; font-size: clamp(3rem, 6vw, 5rem); color: #fff; text-shadow: 0 4px 30px rgba(255, 255, 255, .5); }
.orbit { position: absolute; width: 13px; height: 13px; border-radius: 50%; background: var(--cyan); box-shadow: 0 0 20px var(--cyan); }
.orbit--1 { top: 6%; left: 48%; animation: bob 5s ease-in-out infinite; }
.orbit--2 { bottom: 16%; left: 8%; background: var(--pink); box-shadow: 0 0 20px var(--pink); animation: bob 6s ease-in-out infinite reverse; }
.orbit--3 { top: 32%; right: 3%; width: 9px; height: 9px; background: var(--mint); box-shadow: 0 0 20px var(--mint); animation: bob 4s ease-in-out infinite; }
.float-card { position: absolute; display: flex; align-items: center; gap: 10px; padding: 13px 17px; border-radius: 16px; font-size: 12px; color: var(--text-2); }
.float-card b { color: var(--text); font-size: 13px; }
.float-card .icon { width: 15px; height: 15px; color: var(--accent); }
.float-card--top { top: 12%; right: -2%; animation: bob 6s ease-in-out infinite; }
.float-card--bottom { bottom: 12%; left: -4%; animation: bob 7.5s ease-in-out infinite reverse; }
.float-dot { width: 8px; height: 8px; border-radius: 50%; background: var(--mint); box-shadow: 0 0 12px var(--mint); }

.marquee { position: relative; z-index: 1; overflow: hidden; border-top: 1px solid var(--border); border-bottom: 1px solid var(--border); padding: 16px 0; -webkit-mask-image: linear-gradient(90deg, transparent, #000 12%, #000 88%, transparent); mask-image: linear-gradient(90deg, transparent, #000 12%, #000 88%, transparent); }
.marquee-track { display: flex; align-items: center; gap: 30px; width: max-content; animation: marquee 38s linear infinite; }
.marquee-track span { font-family: var(--font-mono); font-size: 12px; letter-spacing: .16em; text-transform: uppercase; color: var(--muted); white-space: nowrap; }
.marquee-track i { font-style: normal; color: var(--accent); }

.home-layout { display: grid; grid-template-columns: minmax(0, 1fr) 292px; gap: 28px; align-items: start; }
.toolbar { display: flex; align-items: center; justify-content: space-between; gap: 16px; margin-bottom: 24px; flex-wrap: wrap; }
.filter-bar { display: flex; flex-wrap: wrap; gap: 7px; }
.filter-chip { padding: 9px 15px; border-radius: 999px; font-size: 12.5px; font-weight: 600; color: var(--muted); border: 1px solid var(--border); background: var(--surface); transition: all var(--t-fast) var(--ease); }
.filter-chip sup { font-size: 9px; margin-left: 3px; opacity: .65; }
.filter-chip:hover { color: var(--text); border-color: var(--border-strong); transform: translateY(-2px); }
.filter-chip.is-active { color: #fff; border-color: transparent; background: linear-gradient(110deg, #7b68f5, #6a8bff); box-shadow: 0 8px 24px rgba(123, 104, 245, .3); }
.search-inline { display: inline-flex; align-items: center; gap: 8px; padding: 9px 13px; border-radius: 999px; font-size: 12.5px; color: var(--muted); border: 1px solid var(--border); background: var(--surface); transition: all var(--t-fast); }
.search-inline .icon { width: 15px; height: 15px; }
.search-inline kbd { font-family: var(--font-mono); font-size: 10px; padding: 2px 5px; border-radius: 5px; background: var(--surface-3); color: var(--faint); }
.search-inline:hover { color: var(--text); border-color: var(--border-strong); }
.filter-notice { display: flex; align-items: center; gap: 10px; margin-bottom: 20px; padding: 12px 16px; border-radius: 14px; font-size: 13px; color: var(--text-2); background: var(--surface-2); border: 1px solid var(--border); }
.filter-notice[hidden] { display: none; }
.filter-notice strong { color: var(--accent); }
.filter-notice button { margin-left: auto; font-size: 12px; color: var(--accent); text-decoration: underline; }

.post-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 20px; }
.post-card { overflow: hidden; border-radius: var(--r); transition: transform .42s var(--ease), border-color var(--t-base), box-shadow .42s var(--ease), opacity .35s var(--ease); }
.post-card:hover { transform: translateY(-7px); border-color: var(--border-strong); box-shadow: 0 34px 80px rgba(2, 4, 16, .55), inset 0 1px 0 rgba(255, 255, 255, .24); }
.post-card.is-featured { grid-column: span 2; }
.post-card[hidden] { display: none; }
.card-link { display: flex; flex-direction: column; height: 100%; }
.is-featured .card-link { display: grid; grid-template-columns: 46% 1fr; }
.card-media { position: relative; overflow: hidden; aspect-ratio: 16 / 9; background: #0b1024; flex: none; }
.is-featured .card-media { aspect-ratio: auto; height: 100%; min-height: 260px; }
.card-media img { width: 100%; height: 100%; object-fit: cover; transition: transform .8s var(--ease); }
.post-card:hover .card-media img { transform: scale(1.06); }
.card-media-shine { position: absolute; inset: 0; background: linear-gradient(120deg, rgba(255, 255, 255, .16), transparent 38%); pointer-events: none; }
.featured-badge { position: absolute; top: 14px; left: 14px; display: inline-flex; align-items: center; gap: 6px; padding: 6px 12px; border-radius: 999px; font-size: 10px; font-weight: 700; letter-spacing: .1em; text-transform: uppercase; color: #fff; background: rgba(10, 14, 34, .62); border: 1px solid rgba(255, 255, 255, .24); -webkit-backdrop-filter: blur(10px); backdrop-filter: blur(10px); }
.featured-badge .icon { width: 13px; height: 13px; color: var(--amber); }
.card-body { display: flex; flex-direction: column; flex: 1; padding: 22px 24px 20px; gap: 12px; }
.is-featured .card-body { padding: 30px 32px; justify-content: center; }
.card-meta { display: flex; align-items: center; gap: 12px; font-size: 11.5px; color: var(--muted); }
.card-title { font-size: 20px; line-height: 1.25; transition: color var(--t-fast); }
.is-featured .card-title { font-size: clamp(1.5rem, 2.5vw, 2.1rem); }
.post-card:hover .card-title { color: var(--accent); }
.card-excerpt { font-size: 13.5px; line-height: 1.65; color: var(--muted); margin: 0; }
.card-tags { display: flex; flex-wrap: wrap; gap: 10px; font-family: var(--font-mono); font-size: 10.5px; color: var(--faint); }
.card-foot { display: flex; align-items: center; justify-content: space-between; margin-top: auto; padding-top: 14px; border-top: 1px solid var(--border); font-size: 11.5px; color: var(--muted); }
.card-arrow { display: grid; place-items: center; width: 30px; height: 30px; border-radius: 50%; border: 1px solid var(--border); color: var(--text-2); transition: all var(--t-base) var(--ease); }
.card-arrow .icon { width: 15px; height: 15px; }
.post-card:hover .card-arrow { color: #fff; background: var(--accent); border-color: var(--accent); transform: translateX(3px); }
.empty-state { padding: 50px 20px; text-align: center; color: var(--muted); border: 1px dashed var(--border); border-radius: var(--r); }
.empty-state[hidden] { display: none; }
.empty-state button { color: var(--accent); text-decoration: underline; }

.home-side { display: flex; flex-direction: column; gap: 18px; position: sticky; top: 104px; }
.side-card { padding: 22px; border-radius: var(--r); }
.side-head { display: flex; align-items: center; gap: 10px; margin-bottom: 18px; }
.side-head .icon { width: 17px; height: 17px; color: var(--accent); }
.side-head h3 { font-size: 15px; letter-spacing: -.02em; }
.side-cats { display: flex; flex-direction: column; gap: 3px; }
.side-cats a, .topic-links a { display: flex; align-items: center; gap: 10px; padding: 9px 10px; border-radius: 10px; font-size: 13px; color: var(--text-2); transition: background var(--t-fast), color var(--t-fast), transform var(--t-fast); }
.side-cats a:hover { background: var(--surface-3); color: var(--text); transform: translateX(3px); }
.side-cats a b { margin-left: auto; font-family: var(--font-mono); font-size: 11px; color: var(--faint); font-weight: 500; }
.dot { width: 7px; height: 7px; border-radius: 50%; background: var(--accent); flex: none; }
.dot--violet { background: var(--violet); } .dot--cyan { background: var(--cyan); }
.dot--mint { background: var(--mint); } .dot--amber { background: var(--amber); }
.side-more { display: inline-flex; align-items: center; gap: 8px; margin-top: 18px; font-size: 12.5px; font-weight: 600; color: var(--accent); }
.side-more .icon { width: 15px; height: 15px; transition: transform var(--t-fast); }
.side-more:hover .icon { transform: translateX(4px); }
.side-tags, .cloud { display: flex; flex-wrap: wrap; gap: 8px; }
.tag-chip { display: inline-flex; align-items: center; gap: 5px; padding: 7px 12px; border-radius: 999px; font-family: var(--font-mono); font-size: 11px; color: var(--text-2); background: var(--surface-2); border: 1px solid var(--border); transition: all var(--t-fast) var(--ease); }
.tag-chip sup { font-size: 9px; color: var(--faint); }
.tag-chip:hover { color: #fff; border-color: var(--accent); background: color-mix(in srgb, var(--accent) 30%, transparent); transform: translateY(-3px); }
.tag-chip--lg { font-size: calc(11px + var(--weight, 1) * 1.4px); padding: 10px 17px; }
.live-dot { width: 8px; height: 8px; border-radius: 50%; background: var(--mint); box-shadow: 0 0 0 0 rgba(124, 246, 200, .6); animation: pulse 2.4s infinite; flex: none; }
.side-now p, .side-rss p, .post-side-note p { font-size: 13px; color: var(--muted); }
.side-time { display: block; margin-top: 16px; font-family: var(--font-mono); font-size: 10.5px; color: var(--faint); }
.side-rss .btn { margin-top: 16px; }

.topic-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 20px; }
.topic-grid--wide { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.topic-card { --accent-local: var(--accent); padding: 28px; border-radius: var(--r); transition: transform .42s var(--ease), border-color var(--t-base), box-shadow .42s var(--ease); }
.topic-card[data-accent="violet"] { --accent-local: var(--violet); }
.topic-card[data-accent="cyan"] { --accent-local: var(--cyan); }
.topic-card[data-accent="mint"] { --accent-local: var(--mint); }
.topic-card[data-accent="amber"] { --accent-local: var(--amber); }
.topic-card::after { content: ""; position: absolute; top: 0; left: 28px; right: 28px; height: 1px; background: linear-gradient(90deg, transparent, var(--accent-local), transparent); opacity: .7; }
.topic-card:hover { transform: translateY(-6px); border-color: var(--border-strong); box-shadow: 0 30px 70px rgba(2, 4, 16, .5); }
.topic-top { display: flex; align-items: center; justify-content: space-between; margin-bottom: 22px; }
.topic-icon { display: grid; place-items: center; width: 42px; height: 42px; border-radius: 13px; color: var(--accent-local); background: color-mix(in srgb, var(--accent-local) 15%, transparent); border: 1px solid color-mix(in srgb, var(--accent-local) 28%, transparent); }
.topic-icon .icon { width: 19px; height: 19px; }
.topic-count { font-family: var(--font-mono); font-size: 11px; color: var(--muted); }
.topic-title { font-size: 26px; }
.topic-desc { margin: 10px 0 18px; font-size: 13.5px; color: var(--muted); min-height: 44px; }
.topic-links { display: flex; flex-direction: column; border-top: 1px solid var(--border); padding-top: 12px; }
.topic-links a { padding: 8px 4px; font-size: 12.5px; }
.topic-links a span { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.topic-links a .icon { width: 14px; height: 14px; margin-left: auto; flex: none; opacity: .5; }
.topic-links a:hover { background: var(--surface-3); border-radius: 8px; color: var(--accent-local); }
.topic-cta { display: inline-flex; align-items: center; gap: 8px; margin-top: 18px; font-size: 12.5px; font-weight: 650; color: var(--accent-local); }
.topic-cta .icon { width: 15px; height: 15px; transition: transform var(--t-fast); }
.topic-cta:hover .icon { transform: translateX(4px); }

.cta-band { position: relative; overflow: hidden; margin-top: 108px; padding: 62px 56px; border-radius: var(--r-lg); text-align: center; }
.cta-glow { position: absolute; top: -140px; left: 50%; width: 560px; height: 320px; transform: translateX(-50%); background: radial-gradient(ellipse, rgba(139, 124, 255, .35), transparent 68%); pointer-events: none; }
.cta-band h2 { position: relative; font-size: clamp(2rem, 4.4vw, 3.4rem); margin: 16px 0; }
.cta-band p:not(.section-kicker) { position: relative; max-width: 520px; margin: 0 auto 30px; color: var(--muted); font-size: 15px; }
.cta-band .btn { position: relative; }
.cta-actions { display: flex; flex-wrap: wrap; gap: 12px; justify-content: center; position: relative; }

/* 06 · Inner pages --------------------------------------------------------- */
.page-hero { padding: 88px 0 24px; max-width: 900px; }
.page-title { font-size: clamp(2.8rem, 6.6vw, 5.4rem); line-height: 1.02; margin: 22px 0; }
.page-lead { max-width: 660px; font-size: 17px; color: var(--text-2); }
.page-hero-meta { display: flex; align-items: center; gap: 14px; margin-top: 30px; font-family: var(--font-mono); font-size: 11px; letter-spacing: .08em; text-transform: uppercase; color: var(--muted); }
.page-hero-meta i { width: 4px; height: 4px; border-radius: 50%; background: var(--faint); }
.cloud--large { padding: 30px; border: 1px solid var(--border); border-radius: var(--r-lg); background: var(--surface); }
.tag-rows { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 16px; }
.tag-row { padding: 22px 24px; border-radius: var(--r); }
.tag-row-head { display: flex; align-items: baseline; justify-content: space-between; gap: 12px; padding-bottom: 14px; border-bottom: 1px solid var(--border); }
.tag-row-head h3 { font-family: var(--font-mono); font-size: 16px; letter-spacing: -.02em; color: var(--accent); }
.tag-row-head span { font-size: 11px; color: var(--muted); }
.tag-row-links { display: flex; flex-direction: column; margin-top: 12px; }
.tag-row-links a { display: flex; align-items: center; justify-content: space-between; gap: 12px; padding: 8px 0; font-size: 12.5px; color: var(--text-2); transition: color var(--t-fast), transform var(--t-fast); }
.tag-row-links a .icon { width: 14px; height: 14px; opacity: .45; flex: none; }
.tag-row-links a:hover { color: var(--accent); transform: translateX(3px); }

.about-head { display: grid; grid-template-columns: 200px minmax(0, 1fr); gap: 40px; align-items: center; margin-top: 30px; }
.about-avatar { position: relative; width: 190px; height: 190px; border-radius: 50%; padding: 0; display: grid; place-items: center; overflow: hidden; }
.about-avatar img { width: 100%; height: 100%; border-radius: 50%; }
.avatar-ring { position: absolute; inset: -8px; border-radius: 50%; border: 1px dashed rgba(139, 124, 255, .5); animation: spin 40s linear infinite; }
.about-badges { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 24px; }
.prose-grid { display: grid; grid-template-columns: minmax(0, .8fr) minmax(0, 1.2fr); gap: 60px; padding: 40px 0; border-top: 1px solid var(--border); border-bottom: 1px solid var(--border); }
.prose-lead { font-family: var(--font-display); font-size: clamp(1.7rem, 3vw, 2.6rem); letter-spacing: -.04em; line-height: 1.15; color: var(--text); }
.prose-body p { font-size: 16px; color: var(--text-2); margin-bottom: 20px; }
.focus-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 18px; }
.focus-card { --accent-local: var(--accent); padding: 28px; border-radius: var(--r); transition: transform .4s var(--ease), border-color var(--t-base); }
.focus-card[data-accent="violet"] { --accent-local: var(--violet); }
.focus-card[data-accent="mint"] { --accent-local: var(--mint); }
.focus-card[data-accent="amber"] { --accent-local: var(--amber); }
.focus-card:hover { transform: translateY(-6px); border-color: var(--border-strong); }
.focus-num { font-family: var(--font-mono); font-size: 11px; letter-spacing: .16em; color: var(--accent-local); }
.focus-card h3 { font-size: 20px; margin: 26px 0 12px; }
.focus-card p { font-size: 13.5px; color: var(--muted); margin: 0; }
.timeline { border-left: 1px solid var(--border); margin-left: 10px; }
.timeline-item { position: relative; display: grid; grid-template-columns: 150px minmax(0, 1fr); gap: 30px; padding: 0 0 36px 30px; }
.timeline-item::before { content: ""; position: absolute; left: -6px; top: 6px; width: 11px; height: 11px; border-radius: 50%; background: var(--accent); box-shadow: 0 0 0 5px color-mix(in srgb, var(--accent) 18%, transparent); }
.timeline-when { font-family: var(--font-mono); font-size: 11px; letter-spacing: .16em; text-transform: uppercase; color: var(--accent); padding-top: 4px; }
.timeline-body h3 { font-size: 21px; margin-bottom: 10px; }
.timeline-body p { font-size: 14px; color: var(--muted); margin: 0; }
.toolkit { display: flex; flex-wrap: wrap; gap: 10px; padding: 30px; border-radius: var(--r); }
.tool-pill { padding: 9px 16px; border-radius: 999px; font-family: var(--font-mono); font-size: 12px; color: var(--text-2); background: var(--surface-2); border: 1px solid var(--border); transition: all var(--t-fast); }
.tool-pill:hover { color: #fff; background: color-mix(in srgb, var(--accent) 45%, transparent); transform: translateY(-3px); }

.not-found { max-width: 760px; margin: 0 auto; padding: 90px 0 40px; text-align: center; }
.nf-prism { position: relative; width: 220px; height: 180px; margin: 0 auto 30px; display: grid; place-items: center; }
.nf-prism span { position: absolute; border-radius: 50%; border: 1px solid rgba(139, 124, 255, .4); }
.nf-prism span:nth-child(1) { inset: 0; animation: spin 24s linear infinite; border-style: dashed; }
.nf-prism span:nth-child(2) { inset: 18%; border-color: rgba(77, 227, 255, .4); animation: spin 18s linear infinite reverse; }
.nf-prism span:nth-child(3) { inset: 34%; border-color: rgba(255, 122, 198, .4); }
.nf-prism b { position: relative; font-family: var(--font-display); font-size: 62px; letter-spacing: -.06em; background: linear-gradient(100deg, var(--accent), var(--cyan)); -webkit-background-clip: text; background-clip: text; color: transparent; }
.not-found h1 { font-size: clamp(2.2rem, 5vw, 3.6rem); margin: 16px 0; }
.not-found > p:not(.section-kicker) { max-width: 500px; margin: 0 auto 30px; color: var(--muted); }
.nf-suggest { display: flex; flex-direction: column; align-items: center; gap: 10px; margin-top: 60px; padding-top: 30px; border-top: 1px solid var(--border); }
.nf-suggest > span { font-family: var(--font-mono); font-size: 11px; letter-spacing: .16em; text-transform: uppercase; color: var(--faint); margin-bottom: 8px; }
.nf-suggest a { display: inline-flex; align-items: center; gap: 8px; font-size: 13px; color: var(--text-2); }
.nf-suggest a:hover { color: var(--accent); }
.nf-suggest .icon { width: 14px; height: 14px; }

/* 07 · Essay --------------------------------------------------------------- */
.post { padding-top: 54px; }
.post-hero { max-width: 900px; margin: 0 auto; }
.back-link { display: inline-flex; align-items: center; gap: 8px; font-size: 13px; color: var(--muted); transition: color var(--t-fast), transform var(--t-fast); }
.back-link:hover { color: var(--accent); transform: translateX(-4px); }
.post-kicker { display: flex; align-items: center; flex-wrap: wrap; gap: 12px; margin: 34px 0 22px; font-size: 12px; color: var(--muted); }
.meta-dot { width: 4px; height: 4px; border-radius: 50%; background: var(--faint); }
.post-title { font-size: clamp(2.4rem, 5.6vw, 4.5rem); line-height: 1.05; }
.post-subtitle { max-width: 780px; margin: 22px 0 0; font-size: 18px; color: var(--text-2); }
.post-byline { display: flex; align-items: center; gap: 12px; margin-top: 34px; padding-top: 24px; border-top: 1px solid var(--border); }
.post-byline img { width: 38px; height: 38px; border-radius: 50%; border: 1px solid var(--border); }
.post-byline div { display: flex; flex-direction: column; }
.post-byline strong { font-size: 13px; }
.post-byline span { font-size: 11.5px; color: var(--muted); }
.copy-link-btn { display: inline-flex; align-items: center; gap: 7px; margin-left: auto; padding: 9px 15px; border-radius: 999px; font-size: 12px; color: var(--text-2); border: 1px solid var(--border); background: var(--surface-2); transition: all var(--t-fast); }
.copy-link-btn .icon { width: 14px; height: 14px; }
.copy-link-btn:hover { color: var(--text); border-color: var(--border-strong); }
.post-cover { position: relative; overflow: hidden; max-width: 1000px; margin: 44px auto 0; border-radius: var(--r-lg); border: 1px solid var(--border); box-shadow: var(--shadow); aspect-ratio: 1200 / 520; }
.post-cover img { width: 100%; height: 100%; object-fit: cover; }
.post-cover-glow { position: absolute; inset: 0; background: linear-gradient(120deg, rgba(255, 255, 255, .12), transparent 40%); pointer-events: none; }
.post-layout { display: grid; grid-template-columns: minmax(0, 1fr) 250px; gap: 56px; max-width: 1000px; margin: 64px auto 0; align-items: start; }
.post-body { min-width: 0; font-size: 16.5px; line-height: 1.85; color: var(--text-2); }
.post-body .lede { font-size: 19px; line-height: 1.75; color: var(--text); }
.post-body h2 { font-size: clamp(1.5rem, 2.6vw, 2rem); color: var(--text); margin: 54px 0 18px; padding-top: 8px; scroll-margin-top: 110px; }
.post-body h2::before { content: ""; display: block; width: 32px; height: 2px; background: linear-gradient(90deg, var(--accent), var(--cyan)); margin-bottom: 16px; border-radius: 2px; }
.post-body h3 { font-size: 1.25rem; color: var(--text); margin: 36px 0 14px; }
.post-body p { margin-bottom: 22px; }
.post-body strong { color: var(--text); font-weight: 650; }
.post-body ul, .post-body ol { padding-left: 22px; margin: 0 0 24px; }
.post-body li { margin-bottom: 10px; padding-left: 4px; }
.post-body li::marker { color: var(--accent); }
.post-body a { color: var(--accent); text-decoration: underline; text-underline-offset: 3px; }
.post-body :not(pre) > code { padding: 2px 6px; border-radius: 6px; font-size: .86em; color: var(--cyan); background: rgba(139, 124, 255, .12); border: 1px solid var(--border); }
.code-block { position: relative; overflow-x: auto; margin: 28px 0 32px; padding: 20px 22px; border-radius: 16px; background: rgba(4, 7, 20, .78); border: 1px solid var(--border); box-shadow: inset 0 1px 0 rgba(255, 255, 255, .07); font-size: 13px; line-height: 1.75; color: #cbd6f5; }
.code-block::before { content: attr(data-lang); display: block; margin-bottom: 14px; font-family: var(--font-mono); font-size: 10px; font-weight: 700; letter-spacing: .18em; text-transform: uppercase; color: #6f7da8; }
.code-block code { font-size: 12.6px; white-space: pre; }
.code-copy { position: absolute; top: 14px; right: 14px; padding: 5px 11px; border-radius: 8px; font-family: var(--font-mono); font-size: 10px; letter-spacing: .08em; text-transform: uppercase; color: #9aa8cf; background: rgba(255, 255, 255, .07); border: 1px solid rgba(255, 255, 255, .12); transition: all var(--t-fast); }
.code-copy:hover { color: #fff; background: rgba(139, 124, 255, .4); }
.note { margin: 30px 0; padding: 20px 22px; border-radius: 16px; border-left: 2px solid var(--accent); background: rgba(139, 124, 255, .09); }
.note--warning { border-left-color: var(--amber); background: rgba(255, 195, 107, .08); }
.note-label { display: block; margin-bottom: 8px; font-family: var(--font-mono); font-size: 10px; font-weight: 700; letter-spacing: .16em; text-transform: uppercase; color: var(--accent); }
.note--warning .note-label { color: var(--amber); }
.note p { margin: 0; font-size: 14.5px; }
.pull-quote { margin: 42px 0; padding: 8px 0 8px 28px; border-left: 2px solid var(--cyan); }
.pull-quote p { font-family: var(--font-serif); font-size: clamp(1.25rem, 2.2vw, 1.6rem); font-style: italic; line-height: 1.5; color: var(--text); }
.pull-quote cite { font-family: var(--font-mono); font-size: 11px; font-style: normal; letter-spacing: .1em; text-transform: uppercase; color: var(--muted); }
.post-endmark { margin: 50px 0 0; text-align: center; font-size: 24px; color: var(--accent); letter-spacing: .6em; }
.post-side { position: sticky; top: 110px; display: flex; flex-direction: column; gap: 16px; }
.toc, .post-side-tags, .post-side-note { padding: 20px; border-radius: var(--r); }
.toc .side-head { margin-bottom: 12px; }
.toc nav { display: flex; flex-direction: column; gap: 2px; }
.toc a { display: block; padding: 7px 10px; border-radius: 8px; font-size: 12px; line-height: 1.4; color: var(--muted); border-left: 2px solid transparent; transition: all var(--t-fast); }
.toc a:hover { color: var(--text); background: var(--surface-3); }
.toc a.is-active { color: var(--accent); border-left-color: var(--accent); background: color-mix(in srgb, var(--accent) 10%, transparent); }
.post-side-tags .cloud { gap: 6px; }
.post-side-note { display: flex; align-items: flex-start; gap: 10px; }
.post-side-note p { font-size: 12.5px; }
.post-side-note a { color: var(--accent); text-decoration: underline; }
.post-author-card { display: grid; grid-template-columns: 72px minmax(0, 1fr) auto; gap: 22px; align-items: center; max-width: 1000px; margin: 80px auto 0; padding: 26px 30px; border-radius: var(--r); }
.post-author-card img { border-radius: 50%; border: 1px solid var(--border); }
.post-author-card h3 { font-size: 20px; margin: 6px 0; }
.post-author-card p { font-size: 13px; color: var(--muted); margin: 0; }
.post-pager { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 16px; max-width: 1000px; margin: 22px auto 0; }
.pager-link { display: flex; flex-direction: column; gap: 8px; padding: 22px 24px; border-radius: var(--r); transition: transform var(--t-base) var(--ease), border-color var(--t-base); }
.pager-link:hover { transform: translateY(-4px); border-color: var(--border-strong); }
.pager-link span { font-family: var(--font-mono); font-size: 10px; letter-spacing: .16em; text-transform: uppercase; color: var(--muted); }
.pager-link b { font-family: var(--font-display); font-size: 15px; font-weight: 600; line-height: 1.35; }
.pager-next { text-align: right; }
.pager-empty { opacity: .55; }
.section--related { max-width: 1000px; margin-left: auto; margin-right: auto; }
.post-grid--related { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.post-grid--related .post-card.is-featured { grid-column: auto; }
.post-grid--related .card-title { font-size: 17px; }
.post-grid--related .card-body { padding: 18px; }
.post-grid--related .card-tags { display: none; }

/* 08 · Overlays, footer, to-top -------------------------------------------- */
.search-modal { position: fixed; inset: 0; z-index: 150; display: grid; place-items: start center; padding: 12vh 20px 20px; }
.search-modal[hidden] { display: none; }
.search-scrim { position: absolute; inset: 0; background: rgba(4, 6, 16, .72); -webkit-backdrop-filter: blur(10px); backdrop-filter: blur(10px); animation: fadeIn var(--t-base) both; }
.search-panel { position: relative; width: min(620px, 100%); overflow: hidden; border-radius: var(--r-lg); animation: modalIn .4s var(--ease) both; }
.search-field { display: flex; align-items: center; gap: 14px; padding: 20px 22px; border-bottom: 1px solid var(--border); }
.search-field .icon { width: 20px; height: 20px; color: var(--accent); }
.search-field input { flex: 1; min-width: 0; border: 0; outline: 0; background: transparent; font-size: 17px; color: var(--text); }
.search-field input::placeholder { color: var(--faint); }
kbd { font-family: var(--font-mono); font-size: 10px; padding: 4px 7px; border-radius: 6px; color: var(--muted); background: var(--surface-3); border: 1px solid var(--border); }
.search-results { max-height: 52vh; overflow-y: auto; padding: 12px; }
.search-result { display: flex; align-items: flex-start; gap: 14px; padding: 14px 16px; border-radius: 14px; border: 1px solid transparent; transition: background var(--t-fast), border-color var(--t-fast); }
.search-result.is-active, .search-result:hover { background: var(--surface-3); border-color: var(--border); }
.search-result .sr-index { font-family: var(--font-mono); font-size: 10px; color: var(--faint); padding-top: 4px; }
.search-result .sr-body { min-width: 0; flex: 1; }
.search-result strong { display: block; font-size: 14px; font-weight: 650; color: var(--text); }
.search-result small { display: block; margin-top: 3px; font-size: 11.5px; color: var(--muted); overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.search-result .sr-meta { display: flex; align-items: center; gap: 8px; margin-top: 8px; font-family: var(--font-mono); font-size: 10px; color: var(--faint); }
.search-result .sr-meta i { width: 3px; height: 3px; border-radius: 50%; background: var(--faint); }
.search-result > .icon { width: 16px; height: 16px; color: var(--accent); align-self: center; }
.search-empty { padding: 40px 20px; text-align: center; font-size: 13px; color: var(--muted); }
.search-foot { display: flex; gap: 20px; padding: 14px 22px; border-top: 1px solid var(--border); font-size: 11px; color: var(--faint); }
.search-foot span { display: inline-flex; align-items: center; gap: 5px; }

.to-top { position: fixed; right: 26px; bottom: 26px; z-index: 90; display: grid; place-items: center; width: 46px; height: 46px; border-radius: 50%; color: #fff; background: linear-gradient(130deg, #7b68f5, #5f9cff); border: 1px solid rgba(255, 255, 255, .22); box-shadow: 0 14px 34px rgba(90, 80, 220, .4); opacity: 0; transform: translateY(16px) scale(.9); pointer-events: none; transition: all var(--t-base) var(--ease); }
.to-top.is-visible { opacity: 1; transform: none; pointer-events: auto; }
.to-top:hover { transform: translateY(-4px); }
.site-footer { position: relative; z-index: 1; max-width: var(--maxw); margin: 0 auto; padding: 0 28px 40px; }
.footer-inner { display: flex; align-items: center; justify-content: space-between; flex-wrap: wrap; gap: 32px; padding-top: 48px; border-top: 1px solid var(--border); }
.footer-brand .brand-mark { margin-bottom: 14px; }
.footer-brand h2 { font-size: 24px; }
.footer-brand p { margin: 8px 0 0; font-size: 13px; color: var(--muted); }
.footer-col { display: flex; flex-wrap: wrap; gap: 20px; }
.footer-col a { font-size: 13px; color: var(--text-2); transition: color var(--t-fast), transform var(--t-fast); }
.footer-col a:hover { color: var(--accent); transform: translateX(3px); }
.footer-bottom a { display: inline-flex; align-items: center; gap: 6px; color: var(--text-2); }
.footer-bottom a:hover { color: var(--accent); }
.footer-bottom .icon { width: 13px; height: 13px; }
.footer-bottom { display: flex; align-items: center; justify-content: space-between; gap: 20px; flex-wrap: wrap; margin-top: 46px; padding-top: 22px; border-top: 1px solid var(--border); font-size: 11.5px; color: var(--faint); }
.footer-status { display: inline-flex; align-items: center; gap: 8px; font-family: var(--font-mono); }
.footer-status i { width: 7px; height: 7px; border-radius: 50%; background: var(--mint); box-shadow: 0 0 10px var(--mint); }

/* 09 · Motion -------------------------------------------------------------- */
@keyframes drift1 { from { transform: translate3d(0, 0, 0) scale(1); } to { transform: translate3d(8vw, 6vh, 0) scale(1.14); } }
@keyframes drift2 { from { transform: translate3d(0, 0, 0) scale(1.1); } to { transform: translate3d(-9vw, 8vh, 0) scale(.94); } }
@keyframes drift3 { from { transform: translate3d(0, 0, 0) scale(.95); } to { transform: translate3d(7vw, -8vh, 0) scale(1.12); } }
@keyframes spin { to { transform: rotate(360deg); } }
@keyframes bob { 0%, 100% { transform: translateY(0); } 50% { transform: translateY(-14px); } }
@keyframes pulse { 0% { box-shadow: 0 0 0 0 rgba(124, 246, 200, .55); } 70% { box-shadow: 0 0 0 12px rgba(124, 246, 200, 0); } 100% { box-shadow: 0 0 0 0 rgba(124, 246, 200, 0); } }
@keyframes marquee { to { transform: translateX(-50%); } }
@keyframes fadeIn { from { opacity: 0; } to { opacity: 1; } }
@keyframes modalIn { from { opacity: 0; transform: translateY(-18px) scale(.97); } to { opacity: 1; transform: none; } }
@keyframes pageEnter { from { opacity: 0; transform: translateY(16px); } to { opacity: 1; transform: none; } }

.js [data-reveal] { opacity: 0; translate: 0 26px; transition: opacity .72s var(--ease), translate .72s var(--ease); transition-delay: calc(var(--d, 0) * 70ms); }
.js [data-reveal].is-visible { opacity: 1; translate: 0 0; }
.page-main, .site-footer { transition: opacity .26s var(--ease), transform .26s var(--ease); }
body.is-leaving .page-main, body.is-leaving .site-footer { opacity: 0; transform: translateY(-14px); }
html.is-ready .page-main { animation: pageEnter .58s var(--ease) both; }

@view-transition { navigation: auto; }
::view-transition-old(root) { animation: 240ms var(--ease) both fadeIn reverse; }
::view-transition-new(root) { animation: 420ms var(--ease) both fadeIn; }
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation-duration: .001ms !important; animation-iteration-count: 1 !important; transition-duration: .001ms !important; }
  .js [data-reveal] { opacity: 1 !important; translate: none !important; }
  .blob, .marquee-track, .prism-ring, .prism-core, .orbit, .float-card { animation: none !important; }
  ::view-transition-old(root), ::view-transition-new(root) { animation: none !important; }
}

/* 10 · Responsive ---------------------------------------------------------- */
@media (max-width: 1100px) {
  .home-layout { grid-template-columns: minmax(0, 1fr); }
  .home-side { position: static; display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .post-layout { grid-template-columns: minmax(0, 1fr); gap: 30px; }
  .post-side { position: static; flex-direction: row; flex-wrap: wrap; }
  .post-side > * { flex: 1 1 240px; }
  .footer-inner { flex-direction: column; align-items: flex-start; gap: 22px; }
  .footer-col { gap: 16px; }
}
@media (max-width: 900px) {
  .hero { grid-template-columns: minmax(0, 1fr); min-height: auto; padding: 40px 0 20px; }
  .hero-visual { height: 360px; max-width: 420px; margin: 0 auto; width: 100%; }
  .hero-desc { max-width: none; }
  .about-head { grid-template-columns: 140px minmax(0, 1fr); gap: 26px; }
  .about-avatar { width: 140px; height: 140px; }
  .prose-grid { grid-template-columns: minmax(0, 1fr); gap: 24px; }
  .focus-grid { grid-template-columns: minmax(0, 1fr); }
  .topic-grid, .topic-grid--wide, .tag-rows { grid-template-columns: minmax(0, 1fr); }
  .post-grid--related { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .section { margin-top: 80px; }
}
@media (max-width: 720px) {
  .site-header { padding: 12px 16px 0; }
  .header-inner { height: 58px; padding: 0 8px 0 14px; gap: 10px; }
  .brand-word { font-size: 15px; }
  .brand-mark, .brand-mark img { width: 30px; height: 30px; }
  .main-nav { display: none; }
  .menu-btn { display: grid; }
  .header-actions { margin-left: auto; }
  .page-main { padding: 0 18px 80px; }
  .site-footer { padding: 0 18px 30px; }
  .hero-title { font-size: clamp(3rem, 13vw, 4.6rem); }
  .hero-stats > div { padding-right: 18px; margin-right: 18px; }
  .hero-stats b { font-size: 21px; }
  .hero-stats span { font-size: 9.5px; }
  .hero-visual { height: 300px; }
  .float-card--top { right: -4%; } .float-card--bottom { left: -4%; }
  .post-grid { grid-template-columns: minmax(0, 1fr); }
  .post-card.is-featured { grid-column: auto; }
  .is-featured .card-link { display: flex; }
  .is-featured .card-media { height: auto; min-height: 0; aspect-ratio: 16 / 9; }
  .is-featured .card-body { padding: 22px 24px 20px; }
  .is-featured .card-title { font-size: 20px; }
  .home-side { grid-template-columns: minmax(0, 1fr); }
  .section-head { flex-direction: column; align-items: flex-start; gap: 12px; }
  .section-note { text-align: left; }
  .toolbar { align-items: flex-start; }
  .page-hero { padding-top: 52px; }
  .about-head { grid-template-columns: minmax(0, 1fr); text-align: left; }
  .about-avatar { width: 110px; height: 110px; }
  .cta-band { padding: 44px 24px; border-radius: var(--r); }
  .post { padding-top: 30px; }
  .post-cover { margin-top: 30px; border-radius: var(--r); }
  .post-layout { margin-top: 40px; }
  .post-side { flex-direction: column; }
  .post-author-card { grid-template-columns: 56px minmax(0, 1fr); gap: 16px; padding: 22px; }
  .post-author-card img { width: 56px; height: 56px; }
  .post-author-card .btn { grid-column: 1 / -1; justify-self: start; }
  .post-pager { grid-template-columns: minmax(0, 1fr); }
  .post-grid--related { grid-template-columns: minmax(0, 1fr); }
  .timeline-item { grid-template-columns: minmax(0, 1fr); gap: 8px; padding-left: 22px; }
  .footer-inner { gap: 20px; }
  .search-modal { padding-top: 8vh; }
  .search-foot { gap: 10px; flex-wrap: wrap; }
  .to-top { right: 16px; bottom: 16px; width: 42px; height: 42px; }
}
@media (max-width: 420px) {
  .hero-actions .btn { width: 100%; }
  .hero-stats { gap: 14px 0; }
  .hero-stats > div { padding-right: 14px; margin-right: 14px; }
  .card-body { padding: 18px; }
  .tag-chip--lg { font-size: 12px; padding: 8px 12px; }
}

/* Light theme is applied last so it wins the cascade over base rules. */
@media (prefers-color-scheme: light) {
  :root {
    color-scheme: light;
    --bg: #f2f5fd;
    --bg-soft: #e7ecfa;
    --surface: rgba(255, 255, 255, .48);
    --surface-2: rgba(255, 255, 255, .72);
    --surface-3: rgba(255, 255, 255, .9);
    --surface-solid: #ffffff;
    --border: rgba(30, 42, 86, .12);
    --border-strong: rgba(30, 42, 86, .24);
    --text: #141b33;
    --text-2: #364263;
    --muted: #5c688a;
    --faint: #8691ad;
    --accent: #6748f5;
    --shadow: 0 26px 70px rgba(45, 62, 120, .14);
    --shadow-sm: 0 10px 30px rgba(45, 62, 120, .1);
  }
  .glass { box-shadow: var(--shadow), inset 0 1px 0 rgba(255, 255, 255, .9), inset 0 -1px 0 rgba(60, 80, 140, .05); }
  .aurora-grid { background-image: linear-gradient(rgba(40, 60, 120, .045) 1px, transparent 1px), linear-gradient(90deg, rgba(40, 60, 120, .045) 1px, transparent 1px); }
  .header-inner { background: rgba(255, 255, 255, .68); }
  .site-header.is-scrolled .header-inner { background: rgba(255, 255, 255, .88); }
  .mobile-drawer { background: rgba(250, 252, 255, .92); }
  .code-block { background: #101630; color: #cbd6f5; }
}