:root{
  --ground:#F2EEE7;
  --panel:#FBF9F5;
  --panel-2:#F6F2EB;
  --ink:#191521;
  --ink-soft:#5B5566;
  --ink-faint:#938C9E;
  --line:#E4DDD1;
  --line-strong:#D6CCBB;
  --brand:#6C4CFF;
  --brand-ink:#5335F0;
  --onair:#FF4D4D;
  --good:#0E9E8E;
  --shadow:0 1px 2px rgba(25,21,33,.05), 0 12px 34px -18px rgba(25,21,33,.30);
  --shadow-lift:0 2px 6px rgba(25,21,33,.08), 0 26px 50px -22px rgba(25,21,33,.45);
  --radius:20px;
  --font-body:'Instrument Sans', ui-sans-serif, system-ui, sans-serif;
  --font-display:'Bricolage Grotesque', ui-sans-serif, system-ui, sans-serif;
}
@media (prefers-color-scheme: dark){
  :root:not([data-theme="light"]){
    --ground:#100E15;
    --panel:#1A1722;
    --panel-2:#211D2B;
    --ink:#F3EFF7;
    --ink-soft:#B0A8BE;
    --ink-faint:#7C7488;
    --line:#2A2635;
    --line-strong:#39323F;
    --brand:#9A82FF;
    --brand-ink:#B7A4FF;
    --onair:#FF6363;
    --good:#2CD4C0;
    --shadow:0 1px 2px rgba(0,0,0,.4), 0 14px 40px -18px rgba(0,0,0,.75);
    --shadow-lift:0 2px 8px rgba(0,0,0,.5), 0 30px 60px -24px rgba(0,0,0,.85);
  }
}
:root[data-theme="dark"]{
  --ground:#100E15;
  --panel:#1A1722;
  --panel-2:#211D2B;
  --ink:#F3EFF7;
  --ink-soft:#B0A8BE;
  --ink-faint:#7C7488;
  --line:#2A2635;
  --line-strong:#39323F;
  --brand:#9A82FF;
  --brand-ink:#B7A4FF;
  --onair:#FF6363;
  --good:#2CD4C0;
  --shadow:0 1px 2px rgba(0,0,0,.4), 0 14px 40px -18px rgba(0,0,0,.75);
  --shadow-lift:0 2px 8px rgba(0,0,0,.5), 0 30px 60px -24px rgba(0,0,0,.85);
}

*{box-sizing:border-box;margin:0;padding:0}
html{-webkit-text-size-adjust:100%}
body{
  font-family:var(--font-body);
  background:var(--ground);
  color:var(--ink);
  line-height:1.45;
  -webkit-font-smoothing:antialiased;
  min-height:100vh;
  min-height:100dvh;
  display:flex;
  justify-content:center;
  align-items:stretch;
}
.visually-hidden{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap;border:0}

.stage{
  width:100%;
  max-width:430px;
  background:var(--panel);
  position:relative;
  display:flex;
  flex-direction:column;
  min-height:100dvh;
  overflow:hidden;
}
@media (min-width:520px){
  body{align-items:center;padding:32px 16px;
    background:radial-gradient(1200px 600px at 50% -10%, color-mix(in srgb, var(--brand) 12%, var(--ground)), var(--ground));}
  .stage{
    min-height:auto;
    height:min(880px, calc(100dvh - 64px));
    border-radius:40px;
    box-shadow:var(--shadow-lift);
    border:1px solid var(--line);
    outline:10px solid color-mix(in srgb, var(--ink) 88%, transparent);
    outline-offset:-1px;
  }
}

.screen{position:absolute;inset:0;display:flex;flex-direction:column;transition:opacity .5s ease, transform .5s cubic-bezier(.2,.8,.2,1);}
.screen[hidden]{display:none}
.screen.leaving{opacity:0;transform:scale(.97);pointer-events:none}

/* waves */
.waves{display:flex;align-items:center;gap:3px;height:26px}
.waves i{width:3.5px;border-radius:3px;background:var(--brand);display:block;animation:eq 1.1s ease-in-out infinite}
.waves i:nth-child(1){height:40%;animation-delay:-.9s}
.waves i:nth-child(2){height:88%;animation-delay:-.5s}
.waves i:nth-child(3){height:60%;animation-delay:-.2s}
.waves i:nth-child(4){height:100%;animation-delay:-.7s}
.waves i:nth-child(5){height:52%;animation-delay:-.35s}
.waves-sm{height:20px}
.waves-lg{height:44px;gap:5px}
.waves-lg i{width:5px}
@keyframes eq{0%,100%{transform:scaleY(.4)}50%{transform:scaleY(1)}}

/* boot */
.boot-screen{align-items:center;justify-content:center;background:var(--panel)}

/* ---------- login ---------- */
#login, .sent-screen{
  justify-content:space-between;
  padding:clamp(28px,7vw,44px) 28px calc(30px + env(safe-area-inset-bottom));
  background:
    radial-gradient(120% 80% at 15% 0%, color-mix(in srgb, var(--brand) 22%, transparent), transparent 60%),
    radial-gradient(120% 90% at 100% 100%, color-mix(in srgb, var(--good) 16%, transparent), transparent 55%),
    var(--panel);
}
.brand-lockup{display:flex;align-items:center;gap:11px;padding-top:calc(10px + env(safe-area-inset-top))}
.brand-lockup b{font-family:var(--font-display);font-weight:800;font-size:20px;letter-spacing:-.02em}

.login-hero{display:flex;flex-direction:column;gap:18px;margin:auto 0}
.login-hero .eyebrow{font-size:12.5px;letter-spacing:.16em;text-transform:uppercase;color:var(--brand-ink);font-weight:600}
.login-hero h1{
  font-family:var(--font-display);font-weight:800;letter-spacing:-.035em;line-height:1.02;
  font-size:clamp(38px,11vw,50px);text-wrap:balance;
}
.login-hero h1 em{font-family:'Fraunces',serif;font-style:italic;font-weight:600;color:var(--brand)}
.login-hero p{color:var(--ink-soft);font-size:16px;max-width:34ch}

.login-foot{display:flex;flex-direction:column;gap:12px}
.email-input{
  width:100%;padding:15px 16px;border-radius:15px;border:1px solid var(--line-strong);
  background:var(--panel-2);color:var(--ink);font-family:var(--font-body);font-size:16px;
  box-shadow:var(--shadow);transition:border-color .2s ease, box-shadow .2s ease;
}
.email-input::placeholder{color:var(--ink-faint)}
.email-input:focus{outline:none;border-color:var(--brand);box-shadow:0 0 0 3px color-mix(in srgb,var(--brand) 22%,transparent)}
.email-input.shake{animation:shake .4s}
@keyframes shake{10%,90%{transform:translateX(-1px)}30%,70%{transform:translateX(3px)}50%{transform:translateX(-4px)}}

.primary-btn{
  position:relative;display:flex;align-items:center;justify-content:center;gap:10px;
  width:100%;padding:15px 18px;border-radius:15px;border:none;cursor:pointer;
  background:var(--brand);color:#fff;font-family:var(--font-body);font-weight:600;font-size:16px;
  box-shadow:var(--shadow);transition:transform .12s ease, filter .2s ease;
}
.primary-btn:hover{filter:brightness(1.06)}
.primary-btn:active{transform:translateY(1px)}
.primary-btn[disabled]{opacity:.7;cursor:default}
.spinner{display:none;width:16px;height:16px;border-radius:50%;border:2px solid rgba(255,255,255,.4);border-top-color:#fff;animation:spin .7s linear infinite}
.primary-btn.loading .spinner{display:block}
.primary-btn.loading .btn-label{opacity:.85}
@keyframes spin{to{transform:rotate(360deg)}}

.login-note{font-size:12.5px;color:var(--ink-faint);text-align:center;line-height:1.5}
.login-note.error{color:var(--onair)}
.dev-link-wrap{text-align:center}
.dev-link{font-size:13px;color:var(--brand-ink);font-weight:600;text-decoration:none;border-bottom:1px dashed color-mix(in srgb,var(--brand) 50%,transparent);padding-bottom:1px}

/* sent */
.sent-screen{align-items:flex-start}
.sent-mark{width:56px;height:56px;border-radius:16px;display:grid;place-items:center;background:color-mix(in srgb,var(--good) 16%,transparent);color:var(--good);margin:auto 0 0}
.sent-mark svg{width:28px;height:28px}
.sent-screen h2{font-family:var(--font-display);font-weight:800;font-size:30px;letter-spacing:-.03em;margin-top:16px}
.sent-screen p{color:var(--ink-soft);font-size:16px;max-width:32ch;margin-top:8px;margin-bottom:auto}
.ghost-btn{align-self:flex-start;background:transparent;border:1px solid var(--line-strong);color:var(--ink-soft);
  font-family:var(--font-body);font-weight:600;font-size:14px;padding:11px 16px;border-radius:12px;cursor:pointer}
.ghost-btn:hover{border-color:var(--brand);color:var(--brand-ink)}

/* ---------- app top bar ---------- */
#app{background:var(--ground)}
.topbar{
  position:sticky;top:0;z-index:20;
  padding:calc(12px + env(safe-area-inset-top)) 18px 12px;
  background:color-mix(in srgb, var(--panel) 82%, transparent);
  backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);
  border-bottom:1px solid var(--line);
  display:flex;align-items:center;justify-content:space-between;gap:10px;
}
.topbar .lock{display:flex;align-items:center;gap:9px}
.topbar .lock b{font-family:var(--font-display);font-weight:800;font-size:18px;letter-spacing:-.02em}

.whoami{
  display:flex;align-items:center;gap:7px;border:1px solid var(--line);background:var(--panel);
  border-radius:999px;padding:4px 5px 4px 10px;cursor:pointer;font-family:var(--font-body);
  font-weight:600;font-size:12.5px;color:var(--ink-soft);transition:border-color .2s ease;
}
.whoami:hover{border-color:var(--line-strong)}
.whoami .swap{font-size:11px;color:var(--ink-faint)}
.avatar{width:24px;height:24px;border-radius:50%;display:grid;place-items:center;font-weight:700;font-size:11px;color:#fff;font-family:var(--font-body);flex:none;background:var(--brand)}

.views{flex:1;position:relative;overflow:hidden}
.view{position:absolute;inset:0;display:flex;flex-direction:column;min-height:0}
.view[hidden]{display:none}
.scroll{flex:1;overflow-y:auto;overflow-x:hidden;-webkit-overflow-scrolling:touch;padding:0 16px 28px}

/* bottom tab bar */
.tabbar{
  display:flex;border-top:1px solid var(--line);
  background:color-mix(in srgb, var(--panel) 92%, transparent);
  backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);
  padding-bottom:env(safe-area-inset-bottom);flex:none;
}
.tab{
  flex:1;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:3px;
  padding:9px 8px 8px;background:none;border:none;cursor:pointer;
  color:var(--ink-faint);font-family:var(--font-body);font-weight:600;font-size:11px;
  transition:color .18s ease;
}
.tab svg{width:22px;height:22px}
.tab[aria-pressed="true"]{color:var(--brand-ink)}

/* chat: passphrase lock */
.chat-lock{flex:1;display:flex;align-items:center;justify-content:center;padding:24px}
.chat-lock[hidden]{display:none}
.lock-card{max-width:330px;display:flex;flex-direction:column;gap:13px;align-items:center;text-align:center}
.lock-icon{width:54px;height:54px;border-radius:16px;display:grid;place-items:center;background:color-mix(in srgb,var(--brand) 15%,transparent);color:var(--brand)}
.lock-icon svg{width:26px;height:26px}
.lock-card h3{font-family:var(--font-display);font-weight:800;font-size:22px;letter-spacing:-.02em}
.lock-card p{color:var(--ink-soft);font-size:14px;line-height:1.5}
.lock-card form{display:flex;flex-direction:column;gap:10px;width:100%;margin-top:4px}
.lock-note{font-size:12.5px;min-height:16px}
.lock-note.error{color:var(--onair)}
.lock-note.ok{color:var(--good)}

/* chat: conversation */
.chat-body{flex:1;display:flex;flex-direction:column;min-height:0}
.chat-body[hidden]{display:none}
.chat-scroll{flex:1;overflow-y:auto;-webkit-overflow-scrolling:touch;padding:16px 14px;display:flex;flex-direction:column;gap:7px}
.bubble{max-width:80%;padding:9px 13px;border-radius:17px;font-size:15px;line-height:1.36;word-break:break-word;white-space:pre-wrap;animation:pop .3s cubic-bezier(.2,.9,.25,1) both}
.bubble.them{align-self:flex-start;background:var(--panel-2);color:var(--ink);border-bottom-left-radius:5px}
.bubble.me{align-self:flex-end;background:var(--brand);color:#fff;border-bottom-right-radius:5px}
.bubble.locked{align-self:center;background:transparent;border:1px dashed var(--line-strong);color:var(--ink-faint);font-size:12.5px;max-width:90%;text-align:center}
.bubble .b-meta{display:block;font-size:10px;margin-top:4px;opacity:.72;font-variant-numeric:tabular-nums}
.day-sep{align-self:center;font-size:11px;color:var(--ink-faint);padding:6px 0}
.chat-empty{margin:auto;text-align:center;color:var(--ink-faint);font-size:14px;padding:30px}

.chat-status{text-align:center;font-size:12px;color:var(--ink-faint);padding:6px 8px;background:color-mix(in srgb,var(--panel) 60%,transparent)}
.chat-status[hidden]{display:none}
.chat-status.err{color:var(--onair)}

.chat-composer{display:flex;gap:9px;align-items:flex-end;padding:11px 12px calc(11px + env(safe-area-inset-bottom));border-top:1px solid var(--line);background:var(--panel)}
.chat-composer .field{flex:1}
.chat-composer textarea{
  width:100%;resize:none;border:1px solid var(--line-strong);background:var(--panel-2);color:var(--ink);
  border-radius:15px;padding:12px 14px;font-family:var(--font-body);font-size:15.5px;line-height:1.35;
  min-height:46px;max-height:120px;
}
.chat-composer textarea::placeholder{color:var(--ink-faint)}
.chat-composer textarea:focus{outline:none;border-color:var(--brand);box-shadow:0 0 0 3px color-mix(in srgb,var(--brand) 20%,transparent)}
.chat-composer .addbtn{width:46px;height:46px}
.typing{align-self:flex-start;color:var(--ink-faint);font-size:12px;padding:2px 6px}

.composer{padding:18px 2px 6px;display:flex;flex-direction:column;gap:12px}
.composer h2{font-family:var(--font-display);font-weight:800;font-size:23px;letter-spacing:-.03em;text-wrap:balance}
.composer h2 span{color:var(--ink-faint)}
.add-row{display:flex;gap:9px;align-items:flex-end}
.field{flex:1;position:relative}
.field textarea{
  width:100%;resize:none;border:1px solid var(--line-strong);background:var(--panel);color:var(--ink);
  border-radius:15px;padding:13px 14px;font-family:var(--font-body);font-size:15.5px;line-height:1.35;
  min-height:50px;box-shadow:var(--shadow);transition:border-color .2s ease, box-shadow .2s ease;
}
.field textarea::placeholder{color:var(--ink-faint)}
.field textarea:focus{outline:none;border-color:var(--brand);box-shadow:0 0 0 3px color-mix(in srgb,var(--brand) 22%,transparent)}
.addbtn{
  flex:none;width:50px;height:50px;border-radius:15px;border:none;cursor:pointer;
  background:var(--brand);color:#fff;display:grid;place-items:center;box-shadow:var(--shadow);
  transition:transform .12s ease, filter .2s ease;
}
.addbtn:hover{filter:brightness(1.06)} .addbtn:active{transform:scale(.94)}
.addbtn svg{width:22px;height:22px}

.controls{display:flex;align-items:center;justify-content:space-between;gap:10px;padding:16px 2px 6px}
.segmented{display:inline-flex;background:var(--panel-2);border:1px solid var(--line);border-radius:11px;padding:3px}
.segmented button{
  border:none;background:transparent;font-family:var(--font-body);font-weight:600;font-size:12.5px;
  color:var(--ink-soft);padding:6px 12px;border-radius:8px;cursor:pointer;transition:all .18s ease;white-space:nowrap;
}
.segmented button[aria-pressed="true"]{background:var(--panel);color:var(--ink);box-shadow:var(--shadow)}
.reroll{
  display:inline-flex;align-items:center;gap:7px;border:1px solid var(--line);background:var(--panel);
  border-radius:11px;padding:8px 12px;font-family:var(--font-body);font-weight:600;font-size:12.5px;
  color:var(--ink-soft);cursor:pointer;transition:border-color .2s, color .2s;
}
.reroll:hover{border-color:var(--brand);color:var(--brand-ink)}
.reroll svg{width:14px;height:14px}
.reroll.spin svg{animation:spin360 .6s cubic-bezier(.4,0,.2,1)}
@keyframes spin360{to{transform:rotate(360deg)}}

.count{font-size:12px;color:var(--ink-faint);padding:2px 2px 12px;font-variant-numeric:tabular-nums}

.list{display:flex;flex-direction:column;gap:11px}
.minder{
  display:grid;grid-template-columns:52px 1fr;gap:6px;align-items:start;
  background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);
  padding:15px 15px 13px;box-shadow:var(--shadow);position:relative;
  animation:pop .45s cubic-bezier(.2,.9,.25,1) both;
}
@keyframes pop{from{opacity:0;transform:translateY(8px) scale(.98)}to{opacity:1;transform:none}}
.minder.dying{animation:die .32s ease forwards;overflow:hidden}
@keyframes die{to{opacity:0;transform:translateX(40px) scale(.96);max-height:0;margin-bottom:-11px;padding-top:0;padding-bottom:0}}

.marker{
  grid-row:1 / span 2;align-self:start;width:44px;height:44px;display:grid;place-items:center;
  border-radius:14px;font-weight:700;line-height:1;user-select:none;
}
.marker span{display:block}

.m-body{display:flex;flex-direction:column;gap:10px;min-width:0}
.m-text{font-size:16px;line-height:1.34;color:var(--ink);letter-spacing:-.01em;word-break:break-word;white-space:pre-wrap}
.m-meta{display:flex;align-items:center;gap:8px;flex-wrap:wrap}
.chip{display:inline-flex;align-items:center;gap:6px;font-size:11.5px;font-weight:600;padding:3px 9px 3px 4px;border-radius:999px;line-height:1}
.chip .avatar{width:19px;height:19px;font-size:9.5px}
.time{font-size:11.5px;color:var(--ink-faint)}
.del{
  position:absolute;top:11px;right:11px;width:26px;height:26px;border-radius:8px;border:none;
  background:transparent;color:var(--ink-faint);cursor:pointer;display:grid;place-items:center;
  opacity:0;transition:opacity .2s ease, background .2s ease, color .2s ease;
}
.minder:hover .del, .minder:focus-within .del{opacity:1}
.del:hover{background:color-mix(in srgb,var(--onair) 14%,transparent);color:var(--onair)}
.del svg{width:15px;height:15px}

.empty{text-align:center;color:var(--ink-faint);padding:50px 20px;font-size:14.5px}
.empty[hidden]{display:none}

/* theme toggle */
.topbar-right{display:flex;align-items:center;gap:8px}
.ttbtn{width:32px;height:32px;flex:none;border-radius:50%;border:1px solid var(--line);background:var(--panel);color:var(--ink-soft);display:grid;place-items:center;cursor:pointer}
.ttbtn svg{width:15px;height:15px}
.ttbtn:hover{color:var(--ink)}

/* focus visibility */
a:focus-visible, button:focus-visible, input:focus-visible, textarea:focus-visible{
  outline:2px solid var(--brand);outline-offset:2px;border-radius:8px;
}

/* install prompt */
.install-fab{
  position:fixed;left:50%;transform:translateX(-50%);bottom:calc(20px + env(safe-area-inset-bottom));
  z-index:60;display:inline-flex;align-items:center;gap:8px;
  background:var(--brand);color:#fff;border:none;border-radius:999px;
  padding:11px 18px;font-family:var(--font-body);font-weight:600;font-size:14px;
  box-shadow:var(--shadow-lift);cursor:pointer;animation:fabin .4s ease both;
}
.install-fab[hidden]{display:none}
.install-fab svg{width:17px;height:17px}
.install-fab:active{transform:translateX(-50%) scale(.96)}
@keyframes fabin{from{opacity:0;transform:translateX(-50%) translateY(12px)}to{opacity:1;transform:translateX(-50%)}}

@media (prefers-reduced-motion: reduce){
  *{animation-duration:.001ms !important;animation-iteration-count:1 !important;transition-duration:.001ms !important}
}