/* ============================================================
   Aditya Mittal — someone asks, and the answer writes itself
   ============================================================ */

:root{
  /* warm paper, the way a good chat surface looks */
  --bg:        #faf9f5;
  --bg-soft:   #f2f0e9;
  --bubble:    #eeece2;
  --line:      #e4e1d6;
  --line-soft: #edeae0;
  --fg:        #1f1e1c;
  --fg-dim:    #6d6a62;
  --fg-faint:  #9a968c;
  --accent:    #d97757;

  --sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Inter, Roboto, "Helvetica Neue", Arial, sans-serif;
  --serif: ui-serif, "Iowan Old Style", "Palatino Linotype", Palatino, Georgia, serif;
  --mono: ui-monospace, SFMono-Regular, "SF Mono", Menlo, Consolas, monospace;
}

[data-theme="dark"]{
  --bg:        #262624;
  --bg-soft:   #2e2e2b;
  --bubble:    #34342f;
  --line:      #3d3d38;
  --line-soft: #333330;
  --fg:        #f2f0ea;
  --fg-dim:    #a8a49a;
  --fg-faint:  #7a766d;
  --accent:    #e08a6b;
}

*{box-sizing:border-box}
body{
  margin:0;background:var(--bg);color:var(--fg);
  font-family:var(--sans);font-size:17px;line-height:1.72;
  -webkit-font-smoothing:antialiased;overflow-x:hidden;
}
button{font:inherit;color:inherit;background:none;border:none;cursor:pointer}
a{color:var(--accent);text-decoration:none;border-bottom:1px solid color-mix(in srgb,var(--accent) 40%,transparent)}
a:hover{border-bottom-color:currentColor}

/* ───────────── the sunburst ───────────── */
.logo,.spark{display:inline-block;line-height:0;color:var(--accent)}
.logo svg,.spark svg{display:block;width:100%;height:100%}
.logo{width:17px;height:17px;flex:0 0 auto}
.spark{width:22px;height:22px;flex:0 0 auto}
.spark.busy{animation:turn 3.4s linear infinite, breathe 1.5s ease-in-out infinite}
@keyframes turn{to{transform:rotate(360deg)}}
@keyframes breathe{0%,100%{opacity:.55}50%{opacity:1}}

/* ───────────── top bar ───────────── */
.bar{
  position:sticky;top:0;z-index:20;
  background:color-mix(in srgb,var(--bg) 86%,transparent);
  backdrop-filter:saturate(150%) blur(12px);-webkit-backdrop-filter:saturate(150%) blur(12px);
  border-bottom:1px solid var(--line-soft);
}
.bar-in{max-width:780px;margin:0 auto;display:flex;align-items:center;gap:10px;padding:11px 28px}
.name{font-weight:600;letter-spacing:-.012em;font-size:15.5px}
.stat{margin-left:auto;font-family:var(--mono);font-size:11.5px;color:var(--fg-faint);white-space:nowrap}
.tbtn{font-size:14px;color:var(--fg-faint);padding:3px 6px;border-radius:7px;line-height:1}
.tbtn:hover{background:var(--bg-soft);color:var(--fg)}
.prog{height:2px}
.prog-in{height:100%;width:0;background:var(--accent);opacity:.5;transition:width .5s ease}

/* ───────────── conversation ───────────── */
.chat{max-width:780px;margin:0 auto;padding:44px 28px 0}
.turn{margin-bottom:30px}

/* the question */
.turn.user{display:flex;justify-content:flex-end}
.bubble{
  background:var(--bubble);border-radius:16px;padding:13px 18px;
  max-width:82%;font-size:16.5px;line-height:1.6;color:var(--fg);
  transition:transform .28s cubic-bezier(.34,1.4,.64,1), box-shadow .28s;
}
.bubble.sent{animation:pop .3s cubic-bezier(.34,1.4,.64,1)}
@keyframes pop{0%{transform:translateY(4px) scale(.985)}100%{transform:none}}
.bcur{
  display:inline-block;width:2px;height:1.05em;background:var(--accent);
  vertical-align:-3px;margin-left:1px;animation:blink 1.05s steps(1) infinite;
}
@keyframes blink{0%,49%{opacity:1}50%,100%{opacity:0}}

/* the answer */
.turn.asst[hidden]{display:none}
.head{display:flex;align-items:center;gap:10px;margin-bottom:16px;height:22px}
.head-t{
  font-size:13.5px;color:var(--fg-faint);font-style:italic;
  background:linear-gradient(90deg,var(--fg-faint) 20%,var(--fg) 50%,var(--fg-faint) 80%);
  background-size:220% 100%;-webkit-background-clip:text;background-clip:text;color:transparent;
  animation:shimmer 2.1s linear infinite;
}
@keyframes shimmer{to{background-position:-220% 0}}
.head-t[hidden]{display:none}

#out > section{animation:rise .35s ease both}
@keyframes rise{from{opacity:0;transform:translateY(7px)}to{opacity:1;transform:none}}

h2{
  font-family:var(--serif);font-size:23px;font-weight:600;letter-spacing:-.015em;
  line-height:1.35;color:var(--fg);margin:44px 0 16px;padding-top:26px;
  border-top:1px solid var(--line-soft);
}
#out > section:first-child h2{border-top:none;padding-top:0;margin-top:0}

p{margin:0 0 17px}
.lede{font-family:var(--serif);font-size:22px;line-height:1.58;letter-spacing:-.012em}
strong{font-weight:650}
em{font-style:italic}
code{
  font-family:var(--mono);font-size:.85em;background:var(--bg-soft);
  border:1px solid var(--line-soft);border-radius:5px;padding:1px 5px;
}

ul{margin:0 0 18px;padding:0;list-style:none}
li{position:relative;padding-left:21px;margin-bottom:11px}
li::before{content:"";position:absolute;left:3px;top:.74em;width:5px;height:5px;border-radius:50%;background:var(--accent);opacity:.55}

.meta{
  display:flex;flex-wrap:wrap;gap:5px 14px;font-family:var(--mono);font-size:13px;
  color:var(--fg-dim);background:var(--bg-soft);border:1px solid var(--line-soft);
  border-radius:10px;padding:11px 14px;margin:0 0 20px;
}
.meta b{color:var(--fg);font-weight:600}

.note{
  font-size:15.5px;color:var(--fg-dim);font-style:italic;
  border-left:2px solid var(--line);padding:3px 0 3px 15px;margin:0 0 18px;
}

/* the thinking line, shown then discarded */
.think{
  display:flex;align-items:center;gap:9px;margin:0 0 17px;
  font-size:14px;color:var(--fg-faint);font-style:italic;transition:opacity .4s;
}
.think .sp{width:14px;height:14px;flex:0 0 auto;color:var(--accent);
  animation:turn 2.6s linear infinite, breathe 1.4s ease-in-out infinite}
.think .sp svg{display:block;width:100%;height:100%}

/* ───────────── the photo, while it resolves ───────────── */
.gen{margin:0 0 22px}
.gen-frame{
  position:relative;width:300px;max-width:100%;aspect-ratio:1/1;
  border-radius:14px;overflow:hidden;border:1px solid var(--line);background:var(--bg-soft);
}
.gen-frame canvas{
  display:block;width:100%;height:100%;
  filter:blur(var(--blur,6px));transition:filter .34s ease;
}
.gen-grain{
  position:absolute;inset:0;pointer-events:none;
  opacity:var(--grain,.6);transition:opacity .34s ease;
  background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");background-size:170px 170px;mix-blend-mode:overlay;
}
.gen-sweep{
  position:absolute;inset:0;pointer-events:none;
  background:linear-gradient(100deg,transparent 42%,
    color-mix(in srgb,var(--accent) 30%,transparent) 50%,transparent 58%);
  background-size:280% 100%;animation:sweep 1.5s linear infinite;
}
@keyframes sweep{to{background-position:-280% 0}}
.gen-frame.done .gen-sweep{display:none}
.gen-frame.done{border-color:var(--line-soft)}
.gen-cap{
  display:block;margin-top:11px;font-family:var(--mono);font-size:12px;
  color:var(--fg-faint);line-height:1.6;
}

/* streaming cursor */
.cursor{
  display:inline-block;width:8px;height:1.05em;background:var(--accent);border-radius:1px;
  vertical-align:-3px;margin-left:2px;animation:blink 1.05s steps(1) infinite;
}

/* ───────────── scroll gate ───────────── */
.gate{
  display:flex;flex-direction:column;align-items:center;gap:5px;width:100%;
  padding:34px 0 44px;color:var(--fg-faint);font-family:var(--mono);
  font-size:11.5px;letter-spacing:.11em;text-transform:uppercase;animation:rise .4s ease both;
}
.gate:hover{color:var(--fg-dim)}
.gate .gate-a{font-size:19px;line-height:1;animation:nudge 1.5s ease-in-out infinite}
@keyframes nudge{0%,100%{transform:translateY(0);opacity:.45}50%{transform:translateY(5px);opacity:1}}
.gate[hidden]{display:none}

/* ───────────── resume pill (shown when the reader scrolls up mid-write) ───────────── */
.resume{
  position:fixed;left:50%;transform:translateX(-50%);bottom:26px;z-index:30;
  display:flex;align-items:center;gap:8px;
  background:var(--bg);border:1px solid var(--line);border-radius:999px;
  padding:9px 17px;font-size:13px;color:var(--fg-dim);
  box-shadow:0 6px 22px rgba(0,0,0,.13);animation:rise .22s ease both;
}
.resume[hidden]{display:none}
.resume:hover{border-color:var(--accent);color:var(--fg)}
.resume-d{font-size:15px;line-height:1;animation:nudge 1.5s ease-in-out infinite}

/* ───────────── end ───────────── */
.end{padding:14px 0 88px;animation:rise .4s ease both}
.end[hidden]{display:none}
.acts{display:flex;gap:8px;margin:0 0 30px}
.act{
  display:flex;align-items:center;gap:7px;font-size:13px;color:var(--fg-dim);
  border:1px solid var(--line);border-radius:9px;padding:7px 13px;transition:all .16s;
}
.act:hover{border-color:var(--accent);color:var(--fg);background:var(--bg-soft)}
.act svg{opacity:.8}

.end-links{display:grid;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:10px;margin-bottom:26px}
.lk{
  display:flex;align-items:center;gap:12px;padding:13px 15px;border:1px solid var(--line);
  border-radius:12px;color:var(--fg);border-bottom-width:1px;
  transition:border-color .16s,background .16s,transform .16s;
}
.lk:hover{border-color:var(--accent);background:var(--bg-soft);transform:translateY(-1px)}
.lk-ico{flex:0 0 20px;text-align:center;color:var(--accent);font-weight:700;font-size:15px}
.lk-b{min-width:0}
.lk-t{font-size:14.5px;font-weight:560;line-height:1.35;display:block}
.lk-s{font-size:11.5px;color:var(--fg-faint);font-family:var(--mono);display:block;
  white-space:nowrap;overflow:hidden;text-overflow:ellipsis}

.colophon{font-size:12.5px;color:var(--fg-faint);margin:0;line-height:1.65;
  border-top:1px solid var(--line-soft);padding-top:18px;max-width:60ch}
.colophon code{font-size:.9em}

/* ───────────── responsive ───────────── */
@media (max-width:640px){
  body{font-size:16.5px}
  .bar-in{padding:10px 18px;gap:8px}
  .name{font-size:14.5px}
  .stat{font-size:10.5px}
  .chat{padding:30px 18px 0}
  .bubble{max-width:90%;font-size:16px}
  .lede{font-size:20px}
  h2{font-size:21px}
  .end-links{grid-template-columns:1fr}
  .gen-frame{width:100%;max-width:300px}
}
@media (prefers-reduced-motion:reduce){
  *{animation-duration:.01ms !important;animation-iteration-count:1 !important;transition-duration:.01ms !important}
}