/* ==========================================================================
   Ram J. Zaveri — neural interface theme
   ========================================================================== */
:root, [data-theme="neural"] {
  /* ---- theme tokens: every color on the site (and in the canvases) derives from these ---- */
  --rgb-bg: 4, 6, 12;
  --rgb-panel: 12, 18, 34;
  --rgb-line: 120, 200, 255;
  --rgb-text: 230, 236, 255;
  --rgb-dim: 125, 138, 168;
  --rgb-cyan: 56, 232, 255;
  --rgb-violet: 139, 108, 255;
  --rgb-magenta: 255, 79, 216;
  --rgb-lime: 125, 255, 178;
  --rgb-red: 255, 84, 112;
  --rgb-core: 255, 255, 255;        /* hot centre of glow sprites */
  --rgb-grain: 255, 255, 255;       /* scanline overlay */
  --canvas-blend: lighter;          /* how glows composite on the canvas */
  --fx: none;                       /* optional theme effect, e.g. "rain" */
  --text-2: #c4cde9;
  --bright: #fff;
  --muted: #9aa6c6;
  --grad: linear-gradient(100deg, var(--cyan) 0%, var(--violet) 55%, var(--magenta) 100%);
  --radius: 14px;
  --font: "Inter", system-ui, -apple-system, Segoe UI, Roboto, sans-serif;
  --display: "Space Grotesk", var(--font);
  --mono: "JetBrains Mono", ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  color-scheme: dark;
}
/* derived tokens, recomputed on any element that sets a theme (used by the theme previews) */
:root, [data-theme] {
  --bg: rgb(var(--rgb-bg));
  --bg-2: rgba(var(--rgb-panel), .5);
  --panel: rgba(var(--rgb-panel), 0.62);
  --panel-solid: rgb(var(--rgb-panel));
  --line: rgba(var(--rgb-line), 0.13);
  --line-2: rgba(var(--rgb-line), 0.26);
  --text: rgb(var(--rgb-text));
  --dim: rgb(var(--rgb-dim));
  --cyan: rgb(var(--rgb-cyan));
  --violet: rgb(var(--rgb-violet));
  --magenta: rgb(var(--rgb-magenta));
  --lime: rgb(var(--rgb-lime));
  --red: rgb(var(--rgb-red));
  --nav-h: 68px;
}

*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: calc(var(--nav-h) + 12px); }
body {
  margin: 0;
  background: var(--bg);
  background-image:
    radial-gradient(1200px 700px at 85% -10%, rgba(var(--rgb-violet), 0.10), transparent 60%),
    radial-gradient(900px 600px at -10% 30%, rgba(var(--rgb-cyan), 0.06), transparent 60%);
  color: var(--text);
  font-family: var(--font);
  font-size: 16px;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}
body::after { /* film grain + scanlines */
  content: ""; position: fixed; inset: 0; pointer-events: none; z-index: 100;
  background: repeating-linear-gradient(0deg, rgba(var(--rgb-grain),0.012) 0 1px, transparent 1px 3px);
  mix-blend-mode: overlay;
}
img { max-width: 100%; display: block; }
a { color: var(--cyan); text-decoration: none; }
a:hover { color: var(--bright); }
::selection { background: rgba(var(--rgb-cyan), 0.3); color: var(--bright); }

h1, h2, h3, h4 { font-family: var(--display); line-height: 1.15; margin: 0 0 .5em; letter-spacing: -0.01em; }
h2 { font-size: clamp(2rem, 4.4vw, 3.2rem); font-weight: 600; }
h3 { font-size: 1.2rem; font-weight: 600; }
p { margin: 0 0 1em; }
.mono { font-family: var(--mono); letter-spacing: .02em; }
.dim { color: var(--dim); }
.muted { color: var(--muted); }
.tiny { font-size: .74rem; line-height: 1.6; }
.grad { background: var(--grad); -webkit-background-clip: text; background-clip: text; color: transparent; }
.hot { color: var(--magenta); }
.ok { color: var(--lime); }
.lead { font-size: 1.14rem; color: var(--text-2); }
em { color: var(--bright); font-style: normal; border-bottom: 1px dashed var(--line-2); }

.container { width: 100%; max-width: 1200px; margin: 0 auto; padding: 0 24px; }
@media (max-width: 600px) { .container { padding: 0 16px; } }

/* ---------- panels ---------- */
.panel {
  position: relative;
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
}
.panel::before { /* glowing top edge */
  content: ""; position: absolute; left: 18px; right: 18px; top: -1px; height: 1px;
  background: linear-gradient(90deg, transparent, rgba(var(--rgb-cyan),.55), transparent);
  opacity: .6;
}

/* ---------- buttons ---------- */
.btn {
  display: inline-flex; align-items: center; gap: .5em;
  padding: .8em 1.4em; border-radius: 999px;
  font-family: var(--mono); font-size: .82rem; font-weight: 500; letter-spacing: .06em; text-transform: uppercase;
  border: 1px solid var(--line-2); color: var(--text); background: transparent; cursor: pointer;
  transition: transform .2s, box-shadow .25s, background .25s, border-color .25s, color .2s;
}
.btn:hover { transform: translateY(-2px); color: var(--bright); }
.btn .arr { transition: transform .2s; }
.btn:hover .arr { transform: translateX(3px); }
.btn-glow {
  background: linear-gradient(100deg, rgba(var(--rgb-cyan),.18), rgba(var(--rgb-violet),.22));
  border-color: rgba(var(--rgb-cyan),.55);
  box-shadow: 0 0 0 0 rgba(var(--rgb-cyan),.0), inset 0 0 18px rgba(var(--rgb-cyan),.08);
}
.btn-glow:hover { box-shadow: 0 0 28px rgba(var(--rgb-cyan),.35), inset 0 0 18px rgba(var(--rgb-cyan),.15); border-color: var(--cyan); }
.btn-ghost:hover { border-color: var(--violet); box-shadow: 0 0 22px rgba(var(--rgb-violet),.3); }
.btn-sm { padding: .5em 1em; font-size: .72rem; }

/* ---------- boot screen ---------- */
#boot {
  position: fixed; inset: 0; z-index: 1000; background: var(--bg);
  display: grid; place-items: center; transition: opacity .6s ease, visibility .6s;
}
#boot.done { opacity: 0; visibility: hidden; }
.no-boot #boot { display: none; }
html:not(.js) #boot { animation: boot-fallback .4s 4s forwards; } /* never trap the page if JS fails */
@keyframes boot-fallback { to { opacity: 0; visibility: hidden; } }
.boot-inner { width: min(460px, 86vw); font-family: var(--mono); font-size: .8rem; color: var(--muted); }
.boot-lines div { white-space: nowrap; overflow: hidden; }
.boot-lines div b { color: var(--lime); font-weight: 500; }
.boot-bar { margin-top: 14px; height: 2px; background: var(--line); overflow: hidden; border-radius: 2px; }
.boot-bar span { display: block; height: 100%; width: 0; background: var(--grad); transition: width .25s; }

/* ---------- custom cursor ring ---------- */
.cursor-ring {
  position: fixed; left: 0; top: 0; width: 34px; height: 34px; margin: -17px 0 0 -17px;
  border: 1px solid rgba(var(--rgb-cyan),.55); border-radius: 50%; pointer-events: none; z-index: 999;
  transition: width .2s, height .2s, margin .2s, border-color .2s, opacity .3s; opacity: 0;
  mix-blend-mode: screen;
}
.cursor-ring.on { opacity: 1; }
.cursor-ring.hover { width: 56px; height: 56px; margin: -28px 0 0 -28px; border-color: var(--magenta); }
@media (hover: none) { .cursor-ring { display: none; } }

/* ---------- nav ---------- */
.nav {
  position: fixed; top: 0; left: 0; right: 0; z-index: 50; height: var(--nav-h);
  display: flex; align-items: center; justify-content: space-between;
  padding: 0 max(24px, calc((100vw - 1200px) / 2 + 24px));
  transition: background .3s, border-color .3s, backdrop-filter .3s;
  border-bottom: 1px solid transparent;
}
.nav.scrolled { background: rgba(var(--rgb-bg), .72); backdrop-filter: blur(16px); -webkit-backdrop-filter: blur(16px); border-bottom-color: var(--line); }
.brand { display: flex; align-items: center; gap: 10px; color: var(--text); }
.brand-mark { width: 30px; height: 30px; color: var(--cyan); filter: drop-shadow(0 0 6px rgba(var(--rgb-cyan),.6)); }
.brand:hover .brand-mark { animation: spin 3s linear infinite; }
@keyframes spin { to { transform: rotate(360deg); } }
.brand-text { font-family: var(--mono); font-weight: 700; font-size: .92rem; letter-spacing: .14em; }
.nav-links { display: flex; align-items: center; gap: 4px; }
.nav-links a:not(.btn) {
  position: relative; color: var(--muted); font-family: var(--mono); font-size: .76rem; letter-spacing: .1em;
  text-transform: uppercase; padding: 8px 12px; border-radius: 8px; transition: color .2s;
}
.nav-links a:not(.btn)::after {
  content: ""; position: absolute; left: 12px; right: 12px; bottom: 3px; height: 1px; background: var(--cyan);
  transform: scaleX(0); transform-origin: left; transition: transform .25s; box-shadow: 0 0 8px var(--cyan);
}
.nav-links a:not(.btn):hover, .nav-links a.active { color: var(--bright); }
.nav-links a:not(.btn):hover::after, .nav-links a.active::after { transform: scaleX(1); }
.nav-links .btn { margin-left: 10px; }
.nav-toggle { display: none; background: none; border: 0; width: 40px; height: 40px; cursor: pointer; position: relative; }
.nav-toggle span { position: absolute; left: 9px; right: 9px; height: 1.5px; background: var(--text); transition: transform .25s, top .25s; }
.nav-toggle span:first-child { top: 15px; } .nav-toggle span:last-child { top: 24px; }
.nav-toggle[aria-expanded="true"] span:first-child { top: 19px; transform: rotate(45deg); }
.nav-toggle[aria-expanded="true"] span:last-child { top: 19px; transform: rotate(-45deg); }
@media (max-width: 900px) {
  .nav { padding: 0 16px; }
  .nav-toggle { display: block; }
  .nav-links {
    position: fixed; top: var(--nav-h); left: 0; right: 0; flex-direction: column; align-items: stretch; gap: 0;
    background: rgba(var(--rgb-bg),.96); backdrop-filter: blur(16px); border-bottom: 1px solid var(--line);
    padding: 8px 16px 20px; transform: translateY(-120%); transition: transform .35s ease; z-index: -1;
  }
  .nav-links.open { transform: none; }
  .nav-links a:not(.btn) { padding: 14px 4px; border-bottom: 1px solid var(--line); font-size: .85rem; }
  .nav-links a:not(.btn)::after { display: none; }
  .nav-links .btn { margin: 16px 0 0; justify-content: center; }
}

/* ---------- hero ---------- */
.hero { position: relative; min-height: 100vh; min-height: 100svh; display: flex; flex-direction: column; justify-content: center; padding: calc(var(--nav-h) + 40px) 0 90px; overflow: hidden; }
#neural { position: absolute; inset: 0; width: 100%; height: 100%; }
.hero-grid {
  position: absolute; inset: 0; pointer-events: none;
  background-image: linear-gradient(var(--line) 1px, transparent 1px), linear-gradient(90deg, var(--line) 1px, transparent 1px);
  background-size: 64px 64px; opacity: .25;
  mask-image: radial-gradient(ellipse 80% 60% at 50% 40%, #000 20%, transparent 75%);
  -webkit-mask-image: radial-gradient(ellipse 80% 60% at 50% 40%, #000 20%, transparent 75%);
}
.hero-vignette { position: absolute; inset: 0; pointer-events: none; background: linear-gradient(180deg, transparent 60%, var(--bg) 100%), radial-gradient(ellipse at 30% 50%, rgba(var(--rgb-bg),.55), transparent 60%); }
.hero-content { position: relative; display: grid; grid-template-columns: 1.25fr .9fr; gap: 48px; align-items: center; pointer-events: none; }
.hero-content a, .hero-content button, .hero-content .hud { pointer-events: auto; }
.tag-line { font-size: .72rem; color: var(--muted); letter-spacing: .16em; margin-bottom: 22px; display: flex; align-items: center; gap: 10px; flex-wrap: wrap; }
.pulse-dot { display: inline-block; width: 7px; height: 7px; border-radius: 50%; background: var(--lime); box-shadow: 0 0 0 0 rgba(var(--rgb-lime),.7); animation: pulse 1.8s infinite; vertical-align: middle; }
@keyframes pulse { 0% { box-shadow: 0 0 0 0 rgba(var(--rgb-lime),.6); } 70% { box-shadow: 0 0 0 9px rgba(var(--rgb-lime),0); } 100% { box-shadow: 0 0 0 0 rgba(var(--rgb-lime),0); } }
.hero-title { font-size: clamp(3.4rem, 9.5vw, 7.4rem); font-weight: 700; line-height: .92; letter-spacing: -0.035em; margin-bottom: 18px; }
.hero-title .grad { filter: drop-shadow(0 0 28px rgba(var(--rgb-violet),.35)); }
.hero-role { font-size: clamp(.95rem, 1.8vw, 1.15rem); color: var(--cyan); min-height: 1.6em; margin-bottom: 18px; }
.caret { animation: blink 1s steps(1) infinite; color: var(--magenta); margin-left: 2px; }
@keyframes blink { 50% { opacity: 0; } }
.hero-sub { color: var(--text-2); max-width: 600px; font-size: 1.06rem; }
.hero-cta { display: flex; gap: 12px; flex-wrap: wrap; margin: 28px 0 26px; }
.socials { display: flex; gap: 10px; }
.socials a { width: 42px; height: 42px; display: grid; place-items: center; border: 1px solid var(--line-2); border-radius: 12px; color: var(--muted); transition: all .2s; background: rgba(var(--rgb-bg),.4); }
.socials a:hover { color: var(--cyan); border-color: var(--cyan); box-shadow: 0 0 18px rgba(var(--rgb-cyan),.35); transform: translateY(-2px); }
.socials svg { width: 18px; height: 18px; fill: currentColor; }

.hud { padding: 16px 16px 12px; }
.hud-head { display: flex; justify-content: space-between; align-items: center; font-size: .7rem; letter-spacing: .14em; color: var(--muted); margin-bottom: 10px; gap: 10px; }
.hud-head > span:first-child { display: flex; align-items: center; gap: 8px; }
#eeg { height: 220px; }
#eeg { width: 100%; display: block; border-radius: 8px; background: rgba(var(--rgb-bg),.55); border: 1px solid var(--line); }
.hud-stats { display: grid; grid-template-columns: repeat(3, 1fr); gap: 8px; margin-top: 10px; }
.hud-stats div { border: 1px solid var(--line); border-radius: 8px; padding: 8px 10px; display: flex; flex-direction: column; font-size: .64rem; letter-spacing: .12em; }
.hud-stats b { font-size: 1.05rem; color: var(--cyan); font-weight: 500; letter-spacing: 0; }
.hud-hint { font-size: .66rem; margin: 10px 0 0; }

.stats { position: relative; display: grid; grid-template-columns: repeat(4, 1fr); gap: 1px; margin-top: 56px; border: 1px solid var(--line); border-radius: var(--radius); overflow: hidden; background: var(--line); }
.stat { background: rgba(var(--rgb-bg),.82); padding: 20px 22px; backdrop-filter: blur(8px); }
.stat b { display: block; font-family: var(--display); font-size: 2.4rem; font-weight: 600; line-height: 1; background: var(--grad); -webkit-background-clip: text; background-clip: text; color: transparent; }
.stat b::after { content: "+"; font-size: .6em; vertical-align: top; opacity: .7; }
.stat span { font-family: var(--mono); font-size: .7rem; color: var(--muted); letter-spacing: .1em; text-transform: uppercase; }
.scroll-cue { position: absolute; bottom: 22px; left: 50%; transform: translateX(-50%); font-size: .62rem; letter-spacing: .3em; color: var(--dim); display: flex; flex-direction: column; align-items: center; gap: 8px; }
.scroll-cue span { width: 1px; height: 34px; background: linear-gradient(var(--cyan), transparent); animation: drip 2s infinite; }
@keyframes drip { 0% { transform: scaleY(0); transform-origin: top; } 50% { transform: scaleY(1); transform-origin: top; } 51% { transform-origin: bottom; } 100% { transform: scaleY(0); transform-origin: bottom; } }

@media (max-width: 980px) {
  .hero-content { grid-template-columns: 1fr; gap: 36px; }
  .stats { grid-template-columns: repeat(2, 1fr); }
}

/* sub-page header */
.page-hero { position: relative; padding: calc(var(--nav-h) + 80px) 0 70px; overflow: hidden; border-bottom: 1px solid var(--line); }
.page-hero .container { position: relative; pointer-events: none; }
.page-hero h1 { font-size: clamp(2.8rem, 7vw, 5.2rem); font-weight: 700; letter-spacing: -0.03em; margin-bottom: 14px; }
.page-hero p { max-width: 640px; color: var(--text-2); font-size: 1.08rem; }
.crumb { font-size: .72rem; letter-spacing: .16em; color: var(--muted); margin-bottom: 18px; }
.crumb a { color: var(--muted); pointer-events: auto; } .crumb a:hover { color: var(--cyan); }

/* ---------- ticker ---------- */
.ticker { border-block: 1px solid var(--line); overflow: hidden; background: rgba(var(--rgb-panel),.6); padding: 14px 0; }
.ticker-track { display: flex; gap: 28px; width: max-content; animation: marquee 48s linear infinite; font-size: .8rem; letter-spacing: .2em; color: var(--muted); }
.ticker-track i { color: var(--magenta); font-style: normal; }
@keyframes marquee { to { transform: translateX(-50%); } }

/* ---------- sections ---------- */
.section { padding: 110px 0; position: relative; }
.section-alt { background: linear-gradient(180deg, transparent, rgba(var(--rgb-panel),.55) 12%, rgba(var(--rgb-panel),.55) 88%, transparent); }
.sec-head { display: flex; align-items: baseline; gap: 18px; margin-bottom: 48px; }
.sec-head h2 { margin: 0; }
.sec-idx { font-size: .8rem; color: var(--cyan); border: 1px solid rgba(var(--rgb-cyan),.4); padding: 4px 9px; border-radius: 6px; transform: translateY(-8px); box-shadow: 0 0 14px rgba(var(--rgb-cyan),.15); }
.sec-foot { margin-top: 40px; display: flex; justify-content: center; }
.mini-title { font-size: .74rem; letter-spacing: .2em; color: var(--cyan); margin: 0 0 14px; font-weight: 500; }
@media (max-width: 600px) { .section { padding: 76px 0; } .sec-head { margin-bottom: 32px; gap: 12px; } }

.reveal { opacity: 0; transform: translateY(28px); transition: opacity .9s cubic-bezier(.2,.7,.2,1), transform .9s cubic-bezier(.2,.7,.2,1); }
.reveal.in { opacity: 1; transform: none; }

/* chips */
.chip-row { display: flex; flex-wrap: wrap; gap: 6px; }
.chip { font-family: var(--mono); font-size: .68rem; letter-spacing: .04em; color: var(--text-2); padding: 4px 10px; border: 1px solid var(--line-2); border-radius: 999px; background: rgba(var(--rgb-cyan),.04); }
.chip-hot { color: var(--cyan); border-color: rgba(var(--rgb-cyan),.5); background: rgba(var(--rgb-cyan),.08); }

ul.ticks { list-style: none; padding: 0; margin: 0 0 1em; }
ul.ticks li { position: relative; padding-left: 22px; margin-bottom: .7em; color: var(--text-2); }
ul.ticks li::before { content: ""; position: absolute; left: 2px; top: .62em; width: 8px; height: 8px; border: 1.5px solid var(--cyan); transform: rotate(45deg); box-shadow: 0 0 8px rgba(var(--rgb-cyan),.5); }
ul.ticks.small li { font-size: .92rem; }
ul.ticks b { color: var(--bright); font-weight: 600; }

/* ---------- about ---------- */
.about-grid { display: grid; grid-template-columns: .8fr 1.4fr; gap: 56px; align-items: start; }
.portrait { position: sticky; top: calc(var(--nav-h) + 24px); }
.portrait-frame { position: relative; border-radius: var(--radius); overflow: hidden; border: 1px solid var(--line-2); aspect-ratio: 4 / 5; }
.portrait-frame img { width: 100%; height: 100%; object-fit: cover; object-position: 50% 30%; filter: saturate(.9) contrast(1.05); transition: filter .4s, transform .8s; }
.portrait-frame:hover img { filter: saturate(1.05); transform: scale(1.03); }
.portrait-frame::after { content: ""; position: absolute; inset: 0; background: linear-gradient(180deg, transparent 55%, rgba(var(--rgb-bg),.75)), linear-gradient(135deg, rgba(var(--rgb-cyan),.12), transparent 40%, rgba(var(--rgb-magenta),.10)); pointer-events: none; }
.scanline { position: absolute; left: 0; right: 0; height: 80px; top: -80px; background: linear-gradient(180deg, transparent, rgba(var(--rgb-cyan),.22), transparent); animation: scan 4.5s ease-in-out infinite; z-index: 2; pointer-events: none; }
@keyframes scan { 0% { top: -80px; } 60%, 100% { top: 100%; } }
.corner { position: absolute; width: 18px; height: 18px; border-color: var(--cyan); border-style: solid; z-index: 3; }
.corner.tl { top: 10px; left: 10px; border-width: 2px 0 0 2px; } .corner.tr { top: 10px; right: 10px; border-width: 2px 2px 0 0; }
.corner.bl { bottom: 10px; left: 10px; border-width: 0 0 2px 2px; } .corner.br { bottom: 10px; right: 10px; border-width: 0 2px 2px 0; }
.portrait-meta { display: grid; grid-template-columns: repeat(3, auto); justify-content: space-between; gap: 8px; margin-top: 12px; font-size: .7rem; }
.portrait-meta .dim { display: block; letter-spacing: .14em; font-size: .62rem; }
.about-text p { color: var(--text-2); }
.about-text strong { color: var(--bright); font-weight: 600; }

.pipeline { display: flex; align-items: stretch; margin: 34px 0 40px; }
.pipe-node { flex: 1; border: 1px solid var(--line-2); border-radius: 10px; padding: 12px; font-size: .78rem; letter-spacing: .12em; color: var(--bright); background: rgba(var(--rgb-cyan),.03); display: flex; flex-direction: column; gap: 2px; transition: border-color .3s, box-shadow .3s; }
.pipe-node span { color: var(--magenta); font-size: .62rem; }
.pipe-node small { color: var(--dim); font-size: .62rem; letter-spacing: .04em; }
.pipe-node:hover { border-color: var(--cyan); box-shadow: 0 0 18px rgba(var(--rgb-cyan),.2); }
.pipe-link { width: 28px; align-self: center; height: 1px; background: linear-gradient(90deg, var(--cyan), var(--violet)); position: relative; overflow: hidden; }
.pipe-link::after { content: ""; position: absolute; top: -1px; left: -8px; width: 8px; height: 3px; background: var(--bright); box-shadow: 0 0 8px var(--bright); animation: ap 1.6s linear infinite; }
@keyframes ap { to { left: 100%; } }
@media (max-width: 700px) {
  .pipeline { flex-direction: column; }
  .pipe-link { width: 1px; height: 18px; align-self: flex-start; margin-left: 22px; }
  .pipe-link::after { display: none; }
}

.edu { display: grid; gap: 12px; }
.edu-item { padding: 18px 20px; transition: border-color .3s, transform .3s; }
.edu-item:hover { border-color: var(--line-2); transform: translateX(4px); }
.edu-date { font-size: .7rem; color: var(--cyan); letter-spacing: .1em; }
.edu-deg { font-family: var(--display); font-size: 1.15rem; font-weight: 600; margin: 4px 0 2px; }
.edu-sch { color: var(--muted); font-size: .92rem; }
@media (max-width: 900px) { .about-grid { grid-template-columns: 1fr; gap: 36px; } .portrait { position: relative; top: 0; max-width: 380px; } }

/* ---------- timeline ---------- */
.timeline { position: relative; padding-left: 44px; }
.tl-axon { position: absolute; left: 13px; top: 0; bottom: 0; width: 2px; background: linear-gradient(var(--cyan), var(--violet) 60%, rgba(var(--rgb-magenta),.2)); border-radius: 2px; box-shadow: 0 0 10px rgba(var(--rgb-cyan),.4); }
.tl-ap { position: absolute; left: -3px; width: 8px; height: 50px; border-radius: 8px; background: linear-gradient(transparent, var(--bright), transparent); box-shadow: 0 0 14px var(--bright), 0 0 30px var(--cyan); animation: travel 5s cubic-bezier(.5,0,.5,1) infinite; }
@keyframes travel { from { top: -50px; } to { top: 100%; } }
.tl-item { position: relative; margin-bottom: 22px; }
.tl-node { position: absolute; left: -38px; top: 24px; width: 16px; height: 16px; border-radius: 50%; background: var(--bg); border: 2px solid var(--cyan); box-shadow: 0 0 0 4px rgba(var(--rgb-cyan),.1), 0 0 14px var(--cyan); }
.tl-item:first-child .tl-node { background: var(--cyan); animation: pulse 1.8s infinite; }
.tl-card { padding: 22px 24px; transition: border-color .3s, transform .3s, box-shadow .3s; }
.tl-card:hover { border-color: var(--line-2); transform: translateX(6px); box-shadow: -10px 0 40px -20px rgba(var(--rgb-cyan),.35); }
.tl-date { font-size: .7rem; letter-spacing: .14em; color: var(--cyan); margin-bottom: 6px; }
.tl-card h3 { font-size: 1.22rem; margin-bottom: 6px; }
.tl-card .at { color: var(--muted); font-weight: 400; }
.tl-pi { font-size: .72rem; color: var(--magenta); letter-spacing: .08em; margin: 10px 0 4px; }
.tl-card p { color: var(--text-2); font-size: .95rem; margin-bottom: .7em; }
.tl-card .chip-row { margin-top: 12px; }

/* ---------- portfolio ---------- */
.filters { display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: 30px; }
.filter { font-family: var(--mono); font-size: .72rem; letter-spacing: .12em; color: var(--muted); background: transparent; border: 1px solid var(--line-2); padding: 8px 14px; border-radius: 999px; cursor: pointer; transition: all .2s; }
.filter:hover { color: var(--bright); border-color: var(--violet); }
.filter.active { color: var(--bg); background: var(--cyan); border-color: var(--cyan); box-shadow: 0 0 18px rgba(var(--rgb-cyan),.45); }
.proj-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(320px, 1fr)); gap: 20px; }
@media (max-width: 400px) { .proj-grid { grid-template-columns: 1fr; } }
.proj { overflow: hidden; display: flex; flex-direction: column; transition: transform .35s cubic-bezier(.2,.7,.2,1), border-color .3s, box-shadow .35s, opacity .35s; }
.proj:hover { transform: translateY(-6px); border-color: rgba(var(--rgb-cyan),.4); box-shadow: 0 20px 50px -20px rgba(var(--rgb-cyan),.35), 0 0 0 1px rgba(var(--rgb-cyan),.1); }
.proj.hide { display: none; }
.proj-media { position: relative; aspect-ratio: 16 / 9; background: var(--bg); border-bottom: 1px solid var(--line); overflow: hidden; }
.proj-media canvas, .proj-media img, .proj-media video { width: 100%; height: 100%; display: block; object-fit: cover; }
.proj-media::after { content: ""; position: absolute; inset: 0; background: linear-gradient(180deg, transparent 60%, rgba(var(--rgb-bg),.6)); pointer-events: none; }
.proj-badge { position: absolute; top: 10px; right: 10px; z-index: 2; font-size: .62rem; letter-spacing: .16em; color: var(--lime); border: 1px solid var(--lime); padding: 2px 8px; border-radius: 999px; background: rgba(var(--rgb-bg),.7); box-shadow: 0 0 12px rgba(var(--rgb-lime),.3); }
.proj-body { padding: 18px 20px 20px; display: flex; flex-direction: column; flex: 1; }
.proj-meta { font-size: .68rem; color: var(--cyan); letter-spacing: .1em; margin-bottom: 6px; text-transform: uppercase; }
.proj h3 { font-size: 1.14rem; margin-bottom: 8px; }
.proj p { color: var(--muted); font-size: .9rem; margin-bottom: 14px; }
.proj-links { margin-top: auto; display: flex; gap: 14px; flex-wrap: wrap; }
.lnk { font-family: var(--mono); font-size: .72rem; letter-spacing: .1em; text-transform: uppercase; color: var(--cyan); background: none; border: 0; padding: 0; cursor: pointer; border-bottom: 1px solid transparent; transition: border-color .2s, color .2s; }
.lnk:hover { color: var(--bright); border-bottom-color: var(--magenta); }
.lnk-inline { color: var(--cyan); }

.proj-dialog { position: fixed; /* .panel sets relative, which drops the modal to the page top and scrolls there */ width: min(640px, calc(100vw - 32px)); max-height: 86vh; overflow: auto; padding: 30px 28px 26px; color: var(--text); background: rgba(var(--rgb-panel), .96); border: 1px solid var(--line-2); }
.proj-dialog::backdrop { background: rgba(var(--rgb-bg),.7); backdrop-filter: blur(6px); }
.proj-dialog[open] { animation: dlg .35s cubic-bezier(.2,.7,.2,1); }
@keyframes dlg { from { opacity: 0; transform: translateY(16px) scale(.98); } }
.dlg-close { position: absolute; top: 12px; right: 14px; width: 34px; height: 34px; border-radius: 50%; border: 1px solid var(--line-2); background: transparent; color: var(--text); font-size: 1.3rem; cursor: pointer; line-height: 1; }
.dlg-close:hover { border-color: var(--magenta); color: var(--magenta); }
.dlg-meta { font-size: .7rem; color: var(--cyan); letter-spacing: .12em; text-transform: uppercase; }
.dlg-title { font-size: 1.5rem; margin: 6px 0 16px; padding-right: 30px; }
.dlg-body p, .dlg-body li { color: var(--text-2); }
.dlg-links { display: flex; gap: 18px; margin-top: 10px; }

/* ---------- publications ---------- */
.pubs { list-style: none; padding: 0; margin: 20px 0 30px; display: grid; gap: 14px; }
.pub { display: grid; grid-template-columns: 96px 1fr auto; gap: 22px; align-items: center; padding: 20px 22px; transition: border-color .3s, transform .3s; }
.pub:hover { border-color: rgba(var(--rgb-violet),.45); transform: translateX(4px); }
.pub-venue { display: flex; flex-direction: column; align-items: center; justify-content: center; border: 1px solid var(--line-2); border-radius: 10px; padding: 12px 6px; background: linear-gradient(160deg, rgba(var(--rgb-cyan),.08), rgba(var(--rgb-violet),.08)); }
.pub-venue b { color: var(--bright); font-size: .9rem; font-weight: 700; letter-spacing: .06em; }
.pub-venue span { color: var(--cyan); font-size: .72rem; }
.pub h3 { font-size: 1.08rem; margin-bottom: 6px; }
.authors { color: var(--text-2); font-size: .92rem; margin-bottom: 2px; }
.authors u { text-decoration: none; color: var(--bright); font-weight: 600; border-bottom: 1px solid var(--cyan); }
.venue { color: var(--dim); font-size: .86rem; font-style: italic; margin: 0; }
.pub-links { display: flex; gap: 8px; flex-wrap: wrap; justify-content: flex-end; }
@media (max-width: 760px) { .pub { grid-template-columns: 1fr; gap: 12px; } .pub-venue { flex-direction: row; gap: 10px; justify-self: start; padding: 6px 12px; } .pub-links { justify-content: flex-start; } }

details.talks { margin-top: 18px; padding: 0; }
details.talks summary { list-style: none; cursor: pointer; padding: 18px 22px; display: flex; justify-content: space-between; align-items: center; font-size: .78rem; letter-spacing: .16em; color: var(--muted); }
details.talks summary::-webkit-details-marker { display: none; }
details.talks summary:hover { color: var(--bright); }
details.talks .plus { font-size: 1.2rem; color: var(--cyan); transition: transform .3s; }
details.talks[open] .plus { transform: rotate(45deg); }
details.talks ul { list-style: none; margin: 0; padding: 0 22px 18px; }
details.talks li { padding: 10px 0; border-top: 1px solid var(--line); color: var(--text-2); font-size: .93rem; display: grid; grid-template-columns: 72px 1fr; gap: 12px; }
details.talks li em { border: 0; color: var(--magenta); font-size: .85em; }
.honor-cols { display: grid; grid-template-columns: 1fr 1fr; gap: 0 32px; padding: 0 22px 10px; }
.honor-cols ul { padding: 0 0 14px; }
.honor-cols h4 { font-size: .7rem; letter-spacing: .2em; color: var(--cyan); margin: 14px 0 4px; }
@media (max-width: 760px) { .honor-cols { grid-template-columns: 1fr; } }

/* ---------- honors ---------- */
.honor-feature { display: grid; grid-template-columns: repeat(3, 1fr); gap: 14px; }
.hf { padding: 22px; overflow: hidden; transition: transform .3s, border-color .3s; }
.hf::after { content: ""; position: absolute; right: -40px; top: -40px; width: 120px; height: 120px; border-radius: 50%; background: radial-gradient(circle, rgba(var(--rgb-violet),.25), transparent 70%); transition: transform .5s; }
.hf:hover { transform: translateY(-4px); border-color: rgba(var(--rgb-magenta),.4); }
.hf:hover::after { transform: scale(1.6); }
.hf-yr { font-size: .7rem; color: var(--magenta); letter-spacing: .14em; }
.hf h3 { margin: 8px 0 4px; font-size: 1.12rem; }
.hf p { color: var(--muted); margin: 0; font-size: .9rem; }
@media (max-width: 900px) { .honor-feature { grid-template-columns: 1fr 1fr; } }
@media (max-width: 560px) { .honor-feature { grid-template-columns: 1fr; } }

.two-col { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; margin-top: 18px; }
.service { padding: 24px; }
.rev-cloud { display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: 16px; }
.rev { font-family: var(--mono); font-weight: 700; font-size: .85rem; letter-spacing: .06em; padding: 8px 12px; border: 1px solid var(--line-2); border-radius: 10px; color: var(--bright); display: inline-flex; gap: 8px; align-items: baseline; transition: all .2s; }
.rev small { color: var(--cyan); font-weight: 400; font-size: .68rem; }
.rev:hover { border-color: var(--cyan); box-shadow: 0 0 16px rgba(var(--rgb-cyan),.25); }
@media (max-width: 860px) { .two-col { grid-template-columns: 1fr; } }

/* ---------- skills ---------- */
.skills { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
.skill { padding: 22px; }
.skill .chip { font-size: .72rem; padding: 5px 11px; }
@media (max-width: 760px) { .skills { grid-template-columns: 1fr; } }

/* ---------- page link cards (home) ---------- */
.portals { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }
.portal { padding: 26px; color: var(--text); display: flex; flex-direction: column; gap: 6px; overflow: hidden; transition: transform .3s, border-color .3s, box-shadow .3s; }
.portal:hover { color: var(--text); transform: translateY(-5px); border-color: rgba(var(--rgb-cyan),.45); box-shadow: 0 20px 50px -24px rgba(var(--rgb-cyan),.4); }
.portal .p-idx { font-family: var(--mono); font-size: .7rem; color: var(--magenta); letter-spacing: .16em; }
.portal h3 { font-size: 1.5rem; margin: 0; }
.portal p { color: var(--muted); margin: 0 0 10px; font-size: .94rem; }
.portal .go { margin-top: auto; font-family: var(--mono); font-size: .74rem; letter-spacing: .12em; color: var(--cyan); }
.portal:hover .go { color: var(--bright); }
@media (max-width: 860px) { .portals { grid-template-columns: 1fr; } }

/* ---------- contact ---------- */
.contact-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 48px; align-items: start; }
.contact-rows { display: grid; gap: 2px; margin-top: 26px; }
.contact-rows > * { display: grid; grid-template-columns: 110px 1fr; padding: 14px 0; border-bottom: 1px solid var(--line); color: var(--text); font-size: .9rem; }
.contact-rows a:hover { color: var(--cyan); }
.contact-rows .dim { font-size: .7rem; letter-spacing: .16em; align-self: center; }
.terminal { padding: 0 22px 22px; display: flex; flex-direction: column; gap: 6px; }
.term-head { display: flex; align-items: center; gap: 6px; padding: 14px 0; border-bottom: 1px solid var(--line); margin-bottom: 10px; font-size: .72rem; color: var(--dim); }
.term-head i { width: 10px; height: 10px; border-radius: 50%; background: var(--red); opacity: .8; }
.term-head i:nth-child(2) { background: #ffcc4d; } .term-head i:nth-child(3) { background: var(--lime); }
.term-head span { margin-left: auto; }
.terminal label { font-size: .76rem; color: var(--lime); margin-top: 8px; }
.terminal input, .terminal textarea { width: 100%; background: rgba(var(--rgb-bg),.6); border: 1px solid var(--line); border-radius: 8px; padding: 12px 14px; color: var(--bright); font-family: var(--mono); font-size: .9rem; outline: none; transition: border-color .2s, box-shadow .2s; resize: vertical; }
.terminal input:focus, .terminal textarea:focus { border-color: var(--cyan); box-shadow: 0 0 0 3px rgba(var(--rgb-cyan),.12); }
.terminal .btn { margin-top: 16px; align-self: flex-start; }
@media (max-width: 900px) { .contact-grid { grid-template-columns: 1fr; } }

/* ---------- footer ---------- */
.footer { border-top: 1px solid var(--line); padding: 28px 0; }
.footer-inner { display: flex; justify-content: space-between; gap: 16px; flex-wrap: wrap; font-size: .72rem; letter-spacing: .08em; color: var(--muted); }
.footer a { color: var(--muted); } .footer a:hover { color: var(--cyan); }

/* ---------- 404 ---------- */
.lost { min-height: 100vh; display: grid; place-items: center; text-align: center; position: relative; overflow: hidden; }
.lost .container { position: relative; pointer-events: none; }
.lost .container a { pointer-events: auto; }
.lost h1 { font-size: clamp(5rem, 18vw, 11rem); margin: 0; line-height: 1; }
.lost p { color: var(--muted); }

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation-duration: .001ms !important; animation-iteration-count: 1 !important; transition-duration: .001ms !important; }
  .reveal { opacity: 1; transform: none; }
  html { scroll-behavior: auto; }
}