:root{
  --paper:#ffffff;
  --paper-raised:#ffffff;
  --paper-sunk:#f3f3f4;
  --ink:#101012;
  --ink-soft:#5c5c63;
  --ink-faint:#9a9aa1;
  --line:#ebebed;
  --line-strong:#dadadf;
  --accent:#121214;
  --accent-deep:#000000;
  --accent-tint:#efeff1;
  --user-bubble:#f2f2f4;
  --radius:18px;
  --font-display:"Instrument Serif", Georgia, serif;
  --font-ui:"Hanken Grotesk", system-ui, -apple-system, sans-serif;
  --font-story:"Newsreader", Georgia, serif;
  --shadow-soft:0 1px 2px rgba(10,10,15,.05), 0 14px 30px -16px rgba(10,10,15,.18);
}

:root[data-theme="dark"]{
  --paper:#0e0e11;
  --paper-raised:#17171b;
  --paper-sunk:#1c1c21;
  --ink:#ededee;
  --ink-soft:#a2a2a9;
  --ink-faint:#6a6a72;
  --line:#26262b;
  --line-strong:#35353c;
  --accent:#f4f4f5;
  --accent-deep:#ffffff;
  --accent-tint:#26262b;
  --user-bubble:#1e1e23;
  --shadow-soft:0 1px 2px rgba(0,0,0,.4), 0 16px 34px -16px rgba(0,0,0,.6);
}

*{box-sizing:border-box}
html,body{height:100%}
body{
  margin:0;
  font-family:var(--font-ui);
  color:var(--ink);
  background:var(--paper);
  display:flex;flex-direction:column;
  min-height:100dvh;
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
  transition:background .3s ease, color .3s ease;
}

.grain{
  position:fixed;inset:0;pointer-events:none;z-index:0;opacity:.5;
  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='0.8' numOctaves='2'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)' opacity='0.04'/%3E%3C/svg%3E");
  mix-blend-mode:multiply;
}
:root[data-theme="dark"] .grain{mix-blend-mode:screen;opacity:.14}

/* ---------- top bar ---------- */
.topbar{
  position:sticky;top:0;z-index:5;
  display:flex;align-items:center;justify-content:space-between;
  padding:16px clamp(16px,5vw,40px);
  background:color-mix(in srgb, var(--paper) 85%, transparent);
  backdrop-filter:blur(10px);
  border-bottom:1px solid var(--line);
}
.brand{display:flex;align-items:center;gap:11px}
.seal{
  width:11px;height:11px;border-radius:50%;flex:none;
  background:var(--accent);
  box-shadow:0 0 0 4px var(--accent-tint);
}
.name-block{display:contents}
.wordmark{font-family:var(--font-display);font-size:31px;line-height:1;letter-spacing:.3px}
.ver{align-self:flex-start;margin:4px 0 0 -4px;font-family:var(--font-ui);font-size:11px;font-weight:600;letter-spacing:.4px;color:var(--ink-faint)}

.topbar-right{display:flex;align-items:center;gap:12px}
.icon-btn{
  width:36px;height:36px;flex:none;border-radius:50%;
  border:1px solid var(--line-strong);background:var(--paper-raised);
  color:var(--ink-soft);text-decoration:none;cursor:pointer;display:grid;place-items:center;
  transition:color .2s, border-color .2s, transform .25s;
}
.icon-btn:hover{color:var(--ink);border-color:var(--ink-faint)}
.theme-toggle:hover{transform:rotate(-18deg)}
.theme-toggle .sun{display:none}
:root[data-theme="dark"] .theme-toggle .sun{display:block}
:root[data-theme="dark"] .theme-toggle .moon{display:none}
/* sound toggle: show the muted speaker only when sound is off (mirrors sun/moon) */
.sound-toggle .snd-off{display:none}
:root[data-sound="off"] .sound-toggle .snd-on{display:none}
:root[data-sound="off"] .sound-toggle .snd-off{display:block}
:root[data-sound="off"] .sound-toggle{color:var(--ink-faint)}

.coffee{
  display:inline-flex;align-items:center;gap:8px;flex:none;
  background:#ffdd00;color:#0d0c22;text-decoration:none;
  font-family:var(--font-ui);font-weight:700;font-size:13.5px;letter-spacing:.1px;
  border:1px solid rgba(0,0,0,.07);border-radius:999px;padding:8px 16px;
  transition:transform .15s ease, box-shadow .2s ease, filter .15s ease;
}
.coffee:hover{transform:translateY(-1px);box-shadow:0 9px 22px -9px rgba(255,200,0,.95);filter:saturate(1.06)}
.coffee:active{transform:translateY(0)}
.coffee svg{flex:none;margin-top:-1px}

.toggle{position:relative;display:flex;background:var(--paper-sunk);border:1px solid var(--line-strong);border-radius:999px;padding:4px}
.toggle-btn{
  position:relative;z-index:2;border:0;background:transparent;cursor:pointer;
  font-family:var(--font-ui);font-weight:600;font-size:14px;color:var(--ink-soft);
  padding:7px 20px;border-radius:999px;transition:color .28s;
}
.toggle-btn.is-active{color:var(--paper-raised)}
.toggle-thumb{
  position:absolute;z-index:1;top:4px;left:4px;height:calc(100% - 8px);width:calc(50% - 4px);
  background:var(--accent);border-radius:999px;
  transition:transform .34s cubic-bezier(.5,1.25,.4,1);
  box-shadow:0 2px 8px -3px rgba(0,0,0,.28);
}
.toggle.reveal .toggle-thumb{transform:translateX(100%)}

/* ---------- chat ---------- */
.chat{position:relative;z-index:1;flex:1;overflow-y:auto;overscroll-behavior:contain;display:flex;flex-direction:column}
.transcript{width:100%;max-width:720px;margin:0 auto;padding:28px clamp(16px,5vw,24px) 10px;display:flex;flex-direction:column;gap:28px}

.hero{max-width:640px;margin:auto;padding:48px 24px;text-align:center;animation:rise .9s cubic-bezier(.2,.8,.2,1) both}
.hero-title{font-family:var(--font-display);font-weight:400;font-size:clamp(42px,7.4vw,64px);line-height:1.02;margin:0 0 18px;letter-spacing:.2px}
.hero-title em{font-style:italic;color:var(--accent)}
.hero-sub{font-size:16.5px;line-height:1.62;color:var(--ink-soft);max-width:47ch;margin:0 auto 28px}
.chips{display:flex;flex-wrap:wrap;gap:10px;justify-content:center}
.chip{
  font-family:var(--font-story);font-size:15px;color:var(--ink);
  background:var(--paper-raised);border:1px solid var(--line-strong);border-radius:999px;
  padding:9px 17px;cursor:pointer;transition:transform .2s, border-color .2s, box-shadow .2s;
}
.chip:hover{transform:translateY(-2px);border-color:var(--accent);box-shadow:var(--shadow-soft)}

.msg{display:flex;flex-direction:column;animation:rise .5s cubic-bezier(.2,.8,.2,1) both}
.msg.user{align-items:flex-end}
.msg.crypt{align-items:flex-start}
.bubble{max-width:84%}
.msg.user .bubble{
  background:var(--user-bubble);border:1px solid var(--line-strong);
  padding:12px 16px;border-radius:17px 17px 5px 17px;font-size:15.5px;line-height:1.5;
  white-space:pre-wrap;overflow-wrap:anywhere;
}
.who{display:flex;align-items:center;gap:8px;font-size:12px;font-weight:600;letter-spacing:.08em;text-transform:uppercase;color:var(--ink-faint);margin-bottom:9px}
.who .seal{width:8px;height:8px;box-shadow:0 0 0 3px var(--accent-tint)}
.story{
  font-family:var(--font-story);font-size:18px;line-height:1.72;color:var(--ink);
  white-space:pre-wrap;overflow-wrap:anywhere;max-width:92%;
}
.story.secret{font-family:var(--font-ui);font-size:16px;line-height:1.55;background:var(--accent-tint);border-left:2px solid var(--accent);padding:13px 17px;border-radius:0 12px 12px 0}
/* the not-yet-decoded characters flicker in muted cipher glyphs, resolving into solid text */
.story.secret .scramble{color:var(--ink-soft);opacity:.55}
.story.secret.decoding{caret-color:transparent}
.story.err{color:var(--ink-soft);font-family:var(--font-ui);font-size:15px;line-height:1.5}
.caret{display:inline-block;width:.42ch;height:1.05em;vertical-align:-3px;background:var(--accent);margin-left:1px;border-radius:1px;animation:blink 1.05s steps(2) infinite}
/* "composing" loader — a single glyph flickering through random symbols + one status
   line (per hide) with animated trailing dots */
.composing{display:flex;align-items:center;gap:9px;font-family:ui-monospace,SFMono-Regular,"SF Mono",Menlo,Consolas,monospace;font-size:14px;color:var(--ink-soft);letter-spacing:.02em;padding:4px 0}
.cmp-glyph{flex:none;width:1.1ch;text-align:center;color:var(--accent);font-size:16px;line-height:1}
.cmp-dots{margin-left:1px}
.cmp-dots i{font-style:normal;opacity:.22;animation:cmp-dotwave 1.3s ease-in-out infinite}
.cmp-dots i:nth-child(2){animation-delay:.16s}
.cmp-dots i:nth-child(3){animation-delay:.32s}
@keyframes cmp-dotwave{0%,72%,100%{opacity:.22}36%{opacity:1}}
@media (prefers-reduced-motion:reduce){.cmp-dots i{animation:none;opacity:.55}}
.meta{display:flex;align-items:center;gap:14px;margin-top:13px;flex-wrap:wrap}
.copy{
  font-family:var(--font-ui);font-size:13px;font-weight:600;color:var(--ink-soft);
  background:transparent;border:1px solid var(--line-strong);border-radius:999px;padding:6px 14px;cursor:pointer;
  display:inline-flex;align-items:center;gap:7px;transition:.2s;
}
.copy:hover{color:var(--accent);border-color:var(--accent)}
.copy.done{color:var(--accent);border-color:var(--accent);background:var(--accent-tint)}
.meta-note{font-size:12.5px;color:var(--ink-faint)}

/* ---------- composer ---------- */
.composer{position:sticky;bottom:0;z-index:5;padding:12px clamp(16px,5vw,24px) max(16px,env(safe-area-inset-bottom));background:linear-gradient(transparent,var(--paper) 32%)}
.composer-inner{max-width:720px;margin:0 auto}
/* One unified container: input on top, a control bar pinned at the bottom. */
.composer-box{
  background:var(--paper-raised);border:1px solid var(--line-strong);border-radius:24px;
  padding:4px 8px 8px;box-shadow:var(--shadow-soft);
  transition:border-color .2s, box-shadow .2s;
}
.composer-box:focus-within{border-color:var(--accent);box-shadow:0 0 0 4px var(--accent-tint),var(--shadow-soft)}
#input{display:block;width:100%;border:0;outline:0;background:transparent;resize:none;font-family:var(--font-ui);font-size:16px;line-height:1.55;color:var(--ink);max-height:200px;padding:13px 12px 9px}
#input::placeholder{color:var(--ink-faint)}
.composer-bar{display:flex;align-items:center;gap:8px;padding:0 2px}
.bar-left{display:flex;align-items:center;gap:8px;flex-wrap:wrap;min-width:0}
.send{margin-left:auto;flex:none;width:40px;height:38px;border:0;border-radius:14px;background:var(--accent);color:var(--paper-raised);cursor:pointer;display:grid;place-items:center;transition:transform .15s, background .2s, opacity .2s}
.send:hover{background:var(--accent-deep);transform:translateY(-1px)}
.send:disabled{opacity:.4;cursor:default;transform:none}
.reddit:hover{color:#ff4500;border-color:#ff4500}
/* compact the pill controls so they sit cleanly in the bar */
/* uniform 38px height for every composer-bar control (consistent across themes) */
.composer-bar .toggle{padding:3px;height:38px;box-sizing:border-box;align-items:center}
.composer-bar .toggle-btn{padding:6px 15px;font-size:13px}
.composer-bar .toggle-thumb{top:3px;left:3px;height:calc(100% - 6px)}
.composer-bar .select select{height:38px;box-sizing:border-box;padding-top:0;padding-bottom:0}
/* Collapsed to a lock icon by default; clicking it expands to the input. */
.pw-field{
  display:flex;align-items:center;
  border:1px solid var(--line-strong);background:var(--paper-raised);border-radius:999px;
  color:var(--ink-faint);transition:border-color .2s, box-shadow .2s;
}
.pw-field:focus-within{border-color:var(--accent);box-shadow:0 0 0 3px var(--accent-tint)}
.pw-lock-btn{display:grid;place-items:center;width:36px;height:36px;flex:none;border:0;background:transparent;color:inherit;cursor:pointer;padding:0;border-radius:999px;transition:color .2s}
.pw-lock-btn:hover{color:var(--ink-soft)}
.pw-field.has-value .pw-lock-btn{color:var(--accent)}   /* a password is set */
.pw-field input{width:0;min-width:0;border:0;outline:0;background:transparent;font-family:var(--font-ui);font-size:13.5px;color:var(--ink);padding:0;opacity:0;transition:width .22s ease, opacity .18s ease}
.pw-field input::placeholder{color:var(--ink-faint)}
.pw-field.open input{width:116px;opacity:1}
.pw-eye{display:none;border:0;background:transparent;color:var(--ink-faint);cursor:pointer;place-items:center;padding:4px;margin-right:5px;border-radius:50%;transition:color .2s}
.pw-eye:hover{color:var(--ink-soft)}
.pw-field.open .pw-eye{display:grid}
.pw-eye .eye-off{display:none}
.pw-field.revealed .pw-eye .eye{display:none}
.pw-field.revealed .pw-eye .eye-off{display:block}
.select{position:relative}
.select select{appearance:none;-webkit-appearance:none;border:1px solid var(--line-strong);background:var(--paper-raised);border-radius:999px;font-family:var(--font-ui);font-size:13px;font-weight:600;color:var(--ink-soft);padding:6px 28px 6px 14px;cursor:pointer}
.select::after{content:"";position:absolute;right:13px;top:50%;width:6px;height:6px;border-right:1.6px solid var(--ink-faint);border-bottom:1.6px solid var(--ink-faint);transform:translateY(-72%) rotate(45deg);pointer-events:none}
.composer-hint{text-align:center;font-size:12px;color:var(--ink-faint);margin:9px 4px 0}

@keyframes rise{from{opacity:0;transform:translateY(11px)}to{opacity:1;transform:none}}
@keyframes blink{0%,49%{opacity:1}50%,100%{opacity:0}}

@media (max-width:560px){
  .composer-hint{display:none}
  .pw-field.open input{width:96px}
  .story{font-size:17px}
  .name-block{display:flex;flex-direction:column;align-items:flex-start;gap:1px}
  .wordmark{font-size:20px}
  .ver{margin:0;align-self:auto}
  .coffee{padding:8px}
  .coffee-label{display:none}
  .topbar-right{gap:6px}
  .icon-btn{width:30px;height:30px}
}

.info-card{
  position:fixed;top:72px;right:clamp(14px,5vw,40px);z-index:20;
  max-width:330px;background:var(--paper-raised);border:1px solid var(--line-strong);
  border-radius:16px;padding:18px 20px;box-shadow:var(--shadow-soft);
  font-size:13.8px;line-height:1.62;color:var(--ink-soft);
  animation:rise .25s ease both;
}
.info-card[hidden]{display:none}
.info-card h3{margin:0 0 9px;font-family:var(--font-display);font-size:23px;font-weight:400;color:var(--ink)}
.info-card p{margin:0 0 11px}
.info-card p:last-child{margin:0}
.info-card strong{color:var(--ink);font-weight:600}
.info-links{margin-top:14px;padding-top:12px;border-top:1px solid var(--line);font-size:12.5px;color:var(--ink-faint)}
.info-links a{color:var(--ink-soft);text-decoration:none;font-weight:600}
.info-links a:hover{color:var(--accent)}

.app-card .store-links{display:flex;flex-direction:column;gap:10px;margin-top:4px}
.app-card .store-links a{
  display:flex;align-items:center;gap:10px;
  color:var(--ink-soft);text-decoration:none;font-weight:600;font-size:13.8px;
  transition:color .2s;
}
.app-card .store-links a:hover{color:var(--accent)}
.app-card .store-links svg{flex:none}

/* ---------- legal pages (privacy / terms) ---------- */
.legal{
  position:relative;z-index:1;max-width:680px;margin:0 auto;
  padding:36px clamp(18px,5vw,28px) 90px;
  color:var(--ink-soft);font-size:15.5px;line-height:1.72;
  animation:rise .6s cubic-bezier(.2,.8,.2,1) both;
}
.legal-back{display:inline-block;margin-bottom:24px;color:var(--ink-soft);text-decoration:none;font-size:14px;font-weight:600;transition:color .2s}
.legal-back:hover{color:var(--accent)}
.legal h1{font-family:var(--font-display);font-weight:400;font-size:clamp(36px,6vw,48px);line-height:1.05;color:var(--ink);margin:0 0 6px;letter-spacing:.2px}
.legal-date{font-size:13px;color:var(--ink-faint);margin:0 0 30px}
.legal h2{font-family:var(--font-ui);font-size:17px;font-weight:700;color:var(--ink);margin:32px 0 10px}
.legal p{margin:0 0 14px}
.legal ul{margin:0 0 14px;padding-left:20px}
.legal li{margin:0 0 8px}
.legal a{color:var(--accent);text-decoration:underline;text-underline-offset:2px}
.legal strong{color:var(--ink);font-weight:600}
.legal code{font-family:ui-monospace,SFMono-Regular,Menlo,monospace;font-size:.88em;background:var(--paper-sunk);padding:1px 6px;border-radius:6px}
.legal-foot{margin-top:34px;padding-top:18px;border-top:1px solid var(--line);font-size:13.5px;color:var(--ink-faint)}

/* ---------- hacker / matrix mode ---------- */
.mx-rain{position:fixed;inset:0;width:100vw;height:100vh;z-index:0;display:none;pointer-events:none}
.scanlines{position:fixed;inset:0;z-index:40;display:none;pointer-events:none;
  background:repeating-linear-gradient(0deg,rgba(0,0,0,0) 0,rgba(0,0,0,0) 2px,rgba(0,28,16,.42) 3px,rgba(0,0,0,0) 4px);
  mix-blend-mode:multiply}
:root[data-mode="hacker"] .mx-rain{display:block}
:root[data-mode="hacker"] .scanlines{display:block}
:root[data-mode="hacker"] .grain{display:none}

:root[data-mode="hacker"]{
  --paper:#04070a; --paper-raised:rgba(7,17,11,.82); --paper-sunk:#081a10;
  --ink:#39ff9a; --ink-soft:#2bbf7c; --ink-faint:#1f7e54;
  --line:#0e2e1d; --line-strong:#17543b;
  --accent:#33e8ff; --accent-deep:#7af0ff; --accent-tint:rgba(51,232,255,.16);
  --user-bubble:rgba(8,22,14,.85);
  --font-display:"JetBrains Mono","SF Mono",ui-monospace,"Courier New",monospace;
  --font-ui:"JetBrains Mono","SF Mono",ui-monospace,"Courier New",monospace;
  --font-story:"JetBrains Mono","SF Mono",ui-monospace,"Courier New",monospace;
  --shadow-soft:0 0 0 1px rgba(57,255,154,.16), 0 0 26px -10px rgba(57,255,154,.5);
  color-scheme:dark;
}
:root[data-mode="hacker"] body{background:var(--paper);color:var(--ink)}
:root[data-mode="hacker"] *{border-radius:0 !important}
:root[data-mode="hacker"] .topbar{background:rgba(4,7,10,.78);border-bottom-color:var(--line-strong)}
:root[data-mode="hacker"] .wordmark{letter-spacing:1.5px;text-shadow:0 0 9px rgba(57,255,154,.5)}
:root[data-mode="hacker"] .seal{background:var(--ink);box-shadow:0 0 0 3px rgba(57,255,154,.2)}
:root[data-mode="hacker"] .hero-title{text-shadow:0 0 14px rgba(57,255,154,.35)}
:root[data-mode="hacker"] .hero-title em{color:var(--accent)}
:root[data-mode="hacker"] .story{text-shadow:0 0 6px rgba(57,255,154,.3)}
:root[data-mode="hacker"] .send{box-shadow:0 0 14px rgba(51,232,255,.55)}
:root[data-mode="hacker"] .toggle-thumb{box-shadow:0 0 10px rgba(57,255,154,.6)}
:root[data-mode="hacker"] .chip:hover{box-shadow:0 0 14px -4px rgba(57,255,154,.6)}
:root[data-mode="hacker"] .hacker-toggle{color:#04070a;background:var(--ink);border-color:var(--ink);box-shadow:0 0 12px rgba(57,255,154,.7)}
:root[data-mode="hacker"] .hacker-toggle:hover{color:#04070a;border-color:var(--ink)}
/* keep the brand CTA from clashing with the terminal palette */
:root[data-mode="hacker"] .coffee{background:transparent;color:var(--ink-soft);border-color:var(--line-strong);box-shadow:none}
:root[data-mode="hacker"] .coffee:hover{transform:translateY(-1px);box-shadow:0 0 12px -3px rgba(57,255,154,.6);filter:none;color:var(--ink)}
:root[data-mode="hacker"] .reddit:hover{color:var(--accent);border-color:var(--accent)}