/* The Steve Academy — warm glass theme. Light by default, dark via prefers-color-scheme. */
:root{
  color-scheme:light dark;
  --font:-apple-system,BlinkMacSystemFont,"SF Pro Display","SF Pro Text",Inter,"Segoe UI",Roboto,"Helvetica Neue",system-ui,"WenQuanYi Micro Hei","Noto Sans CJK SC","Noto Sans SC","Droid Sans Fallback",sans-serif;
  --bg:#fff1ea;
  --tx:#1a1020;--mut:#6a5360;
  --acc:#e01468;--acc-hi:#ff4d8d;--acc-tx:#a1004e;--on-acc:#fff;
  --violet:#6d28d9;--violet-soft:#7c3aed;
  --glass:rgba(255,255,255,.62);--glass-2:rgba(255,255,255,.82);--glass-3:rgba(255,255,255,.42);
  --edge:rgba(255,255,255,.78);--ring:rgba(60,20,40,.08);--line:rgba(80,30,50,.12);
  --sh:0 1px 1px rgba(60,20,40,.04),0 8px 24px -6px rgba(60,20,40,.10),0 24px 60px -18px rgba(140,40,80,.16);
  --sh-sm:0 1px 2px rgba(60,20,40,.06),0 6px 16px -6px rgba(60,20,40,.12);
  --ok:#1f8f43;--ok-bg:rgba(52,199,89,.16);--bad:#c62828;--bad-bg:rgba(255,69,58,.13);--warn-bg:rgba(255,159,10,.16);--warn-tx:#8a4b00;
  --glow:rgba(224,20,104,.28);--glow-strong:rgba(224,20,104,.5);
  --orb1:rgba(255,45,120,.42);--orb2:rgba(124,58,237,.30);--orb3:rgba(255,140,60,.26);--orb4:rgba(0,200,170,.18);
  --r:24px;--r-sm:16px;
}
@media (prefers-color-scheme:dark){:root{
  --bg:#140910;
  --tx:#fff5f8;--mut:#c4a8b6;
  --acc:#ff3d7a;--acc-hi:#ff7aa8;--acc-tx:#ff9ebb;--on-acc:#fff;
  --violet:#d4c4ff;--violet-soft:#c4b5fd;
  --glass:rgba(42,24,36,.58);--glass-2:rgba(54,30,46,.76);--glass-3:rgba(255,255,255,.07);
  --edge:rgba(255,255,255,.14);--ring:rgba(0,0,0,.5);--line:rgba(255,255,255,.12);
  --sh:0 1px 1px rgba(0,0,0,.3),0 10px 30px -8px rgba(0,0,0,.55),0 30px 70px -20px rgba(0,0,0,.6);
  --sh-sm:0 1px 2px rgba(0,0,0,.4),0 8px 20px -8px rgba(0,0,0,.6);
  --ok:#4cd27a;--ok-bg:rgba(52,199,89,.17);--bad:#ff7a70;--bad-bg:rgba(255,69,58,.18);--warn-bg:rgba(255,159,10,.18);--warn-tx:#ffc266;
  --glow:rgba(255,61,122,.32);--glow-strong:rgba(255,61,122,.55);
  --orb1:rgba(255,45,120,.38);--orb2:rgba(140,70,230,.34);--orb3:rgba(255,120,60,.18);--orb4:rgba(0,180,160,.16);
}}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;background:var(--bg);min-height:100%;min-height:100dvh}
body{margin:0;font-family:var(--font);color:var(--tx);line-height:1.5;letter-spacing:-.011em;-webkit-font-smoothing:antialiased;background:transparent;padding-bottom:110px;min-height:100vh;min-height:100dvh;position:relative;z-index:0;display:flex;flex-direction:column}
body>#app{flex:1 0 auto;width:100%}
/* The tab bar is hidden when logged out. Do not keep its gutter, or the footer sits above a blank band. */
body:has(#tabbar[hidden]){padding-bottom:max(16px,env(safe-area-inset-bottom))}
/* Soft mesh. Touch screens keep this layer fixed to the viewport: a filter, a transform, or a negative inset detaches position:fixed on iOS and stretches the scroll height past the footer. */
body::before{content:"";position:fixed;z-index:-1;pointer-events:none;top:0;left:0;width:100%;height:100vh;height:100dvh;
  background:radial-gradient(48% 42% at 15% 10%,var(--orb1),transparent 72%),radial-gradient(44% 40% at 90% 16%,var(--orb2),transparent 72%),
             radial-gradient(50% 46% at 80% 92%,var(--orb3),transparent 72%),radial-gradient(42% 38% at 6% 88%,var(--orb4),transparent 72%)}
@media (hover:hover) and (pointer:fine){
  body::before{inset:-15%;width:auto;height:auto;
    background:radial-gradient(38% 34% at 15% 12%,var(--orb1),transparent 70%),radial-gradient(34% 32% at 88% 18%,var(--orb2),transparent 70%),
               radial-gradient(40% 36% at 78% 88%,var(--orb3),transparent 70%),radial-gradient(30% 28% at 8% 85%,var(--orb4),transparent 70%);
    filter:blur(40px) saturate(130%);animation:drift 28s ease-in-out infinite alternate}
}
@keyframes drift{from{transform:translate3d(0,0,0) scale(1)}to{transform:translate3d(2%,-2%,0) scale(1.06)}}
a{color:var(--acc-tx);text-underline-offset:3px}
:focus-visible{outline:3px solid var(--acc-hi);outline-offset:2px;border-radius:12px}
::selection{background:var(--glow)}

/* glass surface mixin */
.top,.card,.tabbar,.room,.lesson,.choice,.opt,.chat,.msg,.toast,.stat,input[type=text],input[type=email],input[type=password]{
  -webkit-backdrop-filter:blur(26px) saturate(180%);backdrop-filter:blur(26px) saturate(180%)}
@supports not ((backdrop-filter:blur(1px)) or (-webkit-backdrop-filter:blur(1px))){
  :root{--glass:rgba(255,255,255,.92);--glass-2:rgba(255,255,255,.96)}
  @media (prefers-color-scheme:dark){:root{--glass:rgba(32,35,46,.96);--glass-2:rgba(42,46,60,.98)}}
}

/* header */
.top{position:sticky;top:10px;z-index:20;display:flex;align-items:center;justify-content:space-between;gap:8px;
  margin:10px auto 0;max-width:1040px;width:calc(100% - 20px);padding:8px 10px 8px 18px;border-radius:999px;
  background:var(--glass);border:1px solid var(--edge);box-shadow:var(--sh-sm),0 0 0 .5px var(--ring)}
.brand{display:inline-flex;align-items:center;gap:8px;font-weight:800;font-size:1.05rem;letter-spacing:-.03em;text-decoration:none;color:var(--tx);white-space:nowrap}
.brand .mark{width:28px;height:28px;flex:none;display:block;filter:drop-shadow(0 4px 8px rgba(224,20,104,.35))}
.brand-name{font-weight:800}
.brand-name span{font-weight:500;color:var(--acc-tx)}
.nav{display:flex;gap:2px;align-items:center;flex-wrap:nowrap}
.nav a,.nav button{font:inherit;font-size:.92rem;padding:7px 13px;border-radius:999px;text-decoration:none;color:var(--tx);background:none;border:0;cursor:pointer;transition:background .2s,transform .15s;white-space:nowrap}
.nav a:hover,.nav button:hover{background:var(--glass-3)}
.nav a:active,.nav button:active{transform:scale(.96)}
.nav .logout{background:var(--glass-3);border:1px solid var(--line);font-weight:500}
.nav a.btn{padding:8px 18px;color:var(--on-acc);background:linear-gradient(180deg,var(--acc-hi),var(--acc))}
.nav a.btn:hover{background:linear-gradient(180deg,var(--acc-hi),var(--acc))}

.container{max-width:760px;margin:0 auto;padding:28px 18px 8px}

/* typography */
h1{font-size:clamp(1.9rem,6.2vw,2.9rem);font-weight:300;letter-spacing:-.035em;line-height:1.08;margin:.3em 0 .45em}
h2{font-size:clamp(1.25rem,3.8vw,1.55rem);font-weight:500;letter-spacing:-.025em;margin:.2em 0 .55em;line-height:1.2}
h3{font-size:1.05rem;font-weight:600;letter-spacing:-.015em;margin:.2em 0}
p{margin:.5em 0}
.muted{color:var(--mut)}.small{font-size:.86rem}
b,strong{font-weight:600}

/* cards */
.card{background:var(--glass);border:1px solid var(--edge);border-radius:var(--r);padding:24px;margin-bottom:16px;box-shadow:var(--sh),0 0 0 .5px var(--ring);position:relative}
.card::before{content:"";position:absolute;inset:0;border-radius:inherit;pointer-events:none;box-shadow:inset 0 1px 0 rgba(255,255,255,.55);opacity:.7}
@media (prefers-color-scheme:dark){.card::before{box-shadow:inset 0 1px 0 rgba(255,255,255,.12)}}
.hero{text-align:center;padding:34px 6px 12px}
.hero h1{font-size:clamp(2.2rem,9vw,3.6rem)}
.hero>p.muted{font-size:1.1rem;max-width:30em;margin:0 auto}

/* buttons */
.btn{display:inline-block;font:inherit;font-weight:500;letter-spacing:-.01em;padding:12px 24px;border-radius:999px;border:1px solid rgba(255,255,255,.28);
  background:linear-gradient(180deg,var(--acc-hi),var(--acc));color:var(--on-acc);cursor:pointer;text-decoration:none;text-align:center;
  box-shadow:0 1px 0 rgba(255,255,255,.35) inset,0 6px 16px -4px var(--glow-strong),0 2px 4px rgba(0,0,0,.08);
  transition:transform .18s cubic-bezier(.2,.8,.2,1),box-shadow .25s,filter .2s,background .2s}
.btn:hover{transform:translateY(-1px);filter:brightness(1.06);box-shadow:0 1px 0 rgba(255,255,255,.4) inset,0 10px 24px -6px var(--glow-strong),0 2px 4px rgba(0,0,0,.08)}
.btn:active{transform:scale(.97);filter:brightness(.97)}
.btn:disabled{opacity:.45;cursor:not-allowed;transform:none}
.btn.sec{background:var(--glass-2);color:var(--acc-tx);border:1px solid var(--edge);box-shadow:var(--sh-sm);-webkit-backdrop-filter:blur(20px) saturate(180%);backdrop-filter:blur(20px) saturate(180%)}
.btn.ghost{background:var(--glass);color:var(--tx);border:1px solid var(--edge);box-shadow:var(--sh-sm);-webkit-backdrop-filter:blur(20px) saturate(180%);backdrop-filter:blur(20px) saturate(180%)}
.btn.sec:hover,.btn.ghost:hover{background:var(--glass-2);filter:none}
.btn.big{padding:16px 24px;font-size:1.05rem;width:100%}
.btn.gold{background:linear-gradient(180deg,#ffb340,#ff8a00);color:#2a1700;border-color:rgba(255,255,255,.4);box-shadow:0 1px 0 rgba(255,255,255,.5) inset,0 8px 20px -6px rgba(255,138,0,.55)}
.row{display:flex;gap:10px;flex-wrap:wrap;align-items:center}.col{display:flex;flex-direction:column;gap:12px}
.grid{display:grid;gap:14px;grid-template-columns:repeat(auto-fit,minmax(150px,1fr));margin-bottom:16px}
.grid .card{margin-bottom:0;padding:20px}
.stat{text-align:center}.stat b{display:block;font-size:2.3rem;font-weight:300;letter-spacing:-.04em;line-height:1.15}

/* forms */
label{display:block;font-weight:500;font-size:.9rem;margin:14px 0 6px;color:var(--mut)}
input[type=text],input[type=email],input[type=password]{width:100%;font:inherit;color:var(--tx);padding:14px 18px;border:1px solid var(--line);border-radius:999px;background:var(--glass-2);
  box-shadow:inset 0 1px 2px rgba(0,0,0,.05);transition:border-color .2s,box-shadow .2s}
input::placeholder{color:var(--mut);opacity:.75}
input:focus{outline:none;border-color:var(--acc-hi);box-shadow:0 0 0 4px var(--glow)}
input,textarea,select{scroll-margin-top:88px;scroll-margin-bottom:180px}
.fieldnote{margin:-6px 0 0}
.okline{color:var(--ok);font-weight:600;margin:8px 0 0}
input:focus-visible{outline:none}
.err{color:var(--bad);margin:10px 0;font-weight:500;min-height:1.2em}
.card .err:empty{margin:0;min-height:0}

/* badges / pills */
.badge{display:inline-block;padding:3px 11px;border-radius:999px;font-size:.74rem;font-weight:600;letter-spacing:0;background:var(--glow);color:var(--acc-tx);vertical-align:middle}
.badge.pre{background:var(--warn-bg);color:var(--warn-tx)}.badge.free{background:var(--ok-bg);color:var(--ok)}
.level-pill{display:inline-flex;align-items:center;justify-content:center;min-width:46px;height:46px;padding:0 6px;border-radius:16px;color:#fff;font-weight:600;letter-spacing:-.02em;
  background:linear-gradient(145deg,var(--acc-hi),var(--violet-soft));box-shadow:0 8px 18px -6px var(--glow-strong),inset 0 1px 0 rgba(255,255,255,.4)}

/* options / exercises */
.opt{display:block;width:100%;text-align:left;font:inherit;color:var(--tx);padding:14px 18px;margin:9px 0;border:1px solid var(--edge);border-radius:var(--r-sm);background:var(--glass);cursor:pointer;
  box-shadow:var(--sh-sm);transition:transform .15s,border-color .2s,background .2s,box-shadow .2s}
.opt:hover:not(:disabled){transform:translateY(-1px);background:var(--glass-2)}
.opt:active:not(:disabled){transform:scale(.985)}
.opt:disabled{cursor:default}
.opt.sel{border-color:var(--acc-hi);box-shadow:0 0 0 3px var(--glow)}
.opt.right{border-color:var(--ok);background:var(--ok-bg)}
.opt.wrong{border-color:var(--bad);background:var(--bad-bg)}
.progressbar{height:6px;background:var(--glass-3);border:1px solid var(--line);border-radius:99px;overflow:hidden}
.progressbar>i{display:block;height:100%;border-radius:99px;background:linear-gradient(90deg,var(--acc-hi),var(--violet-soft));transition:width .5s cubic-bezier(.2,.8,.2,1)}
.fillq input{max-width:240px;display:inline-block;margin:2px 6px;padding:8px 16px}
.exq{margin-bottom:26px!important}
.result{padding:12px 16px;border-radius:var(--r-sm);margin-top:10px;font-size:.92rem}
.result.ok{background:var(--ok-bg);color:var(--tx);border:1px solid rgba(52,199,89,.35)}.result.no{background:var(--bad-bg);color:var(--tx);border:1px solid rgba(255,69,58,.3)}
.card.pass{background:var(--ok-bg)}.card.fail{background:var(--bad-bg)}

/* vocab */
.vocab{display:grid;grid-template-columns:1fr 1fr;gap:8px 12px}
.vocab div{padding:10px 14px;background:var(--glass-3);border:1px solid var(--line);border-radius:14px;display:flex;justify-content:space-between;gap:10px;align-items:baseline}
.vocab .en{font-weight:600}.vocab .es{color:var(--mut);text-align:right;font-size:.92rem}
.say{border:0;background:none;cursor:pointer;font-size:1rem;padding:2px 6px;border-radius:99px;transition:background .2s,transform .15s}
.say:hover{background:var(--glass-3)}.say:active{transform:scale(.88)}

/* path */
.unit{border-top:1px solid var(--line);padding:16px 0 6px}.unit:first-of-type{border-top:0}
.lesson{display:flex;align-items:center;justify-content:space-between;gap:12px;padding:14px 18px;border:1px solid var(--edge);border-radius:var(--r-sm);margin:9px 0;text-decoration:none;color:var(--tx);background:var(--glass);
  box-shadow:var(--sh-sm);transition:transform .18s,background .2s,box-shadow .2s}
.lesson:hover{transform:translateY(-2px);background:var(--glass-2)}
.lesson.locked{opacity:.78}
.tick{color:var(--ok);font-weight:700}

/* rooms / chat */
.room{display:flex;justify-content:space-between;align-items:center;gap:12px;padding:16px 20px;border:1px solid var(--edge);border-radius:var(--r);margin:10px 0;background:var(--glass);color:var(--tx);text-decoration:none;
  box-shadow:var(--sh-sm);transition:transform .18s,background .2s}
button.room{width:100%;font:inherit;text-align:left;cursor:pointer}
.person{display:flex;justify-content:space-between;align-items:center;gap:10px;padding:10px 0;border-bottom:1px solid var(--line)}
.person:last-child{border-bottom:0}
#c-form textarea,#c-form select,#friend-form input,#v-form input,#v-join input,#voice-invite select{width:100%}
#friend-form input,#v-form input,#v-join input,#voice-invite select{flex:1;min-width:160px}
#v-join label{margin-top:2px}
#voice-controls .btn,#voice-share .row .btn{min-height:44px}
#voice-controls .btn.on,#voice-share .btn.on{background:linear-gradient(180deg,var(--acc-hi),var(--acc));color:var(--on-acc);border-color:transparent;box-shadow:0 0 0 3px var(--glow),0 6px 16px -4px var(--glow-strong)}
#voice-share .btn.ghost:active,#voice-controls .btn.ghost:active,#voice-controls .btn.sec:active{background:linear-gradient(180deg,var(--acc-hi),var(--acc));color:var(--on-acc);border-color:transparent}
@media (max-width:600px){#voice-controls .btn,#voice-share .row .btn{flex:1 1 100%;padding-left:16px;padding-right:16px;white-space:nowrap}}
.voice-stage{display:grid;grid-template-columns:repeat(auto-fill,minmax(140px,1fr));gap:10px}
.voice-peer{padding:14px;border:1px solid var(--edge);border-radius:var(--r-sm);background:var(--glass)}
.voice-code{font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;font-size:1.45rem;letter-spacing:.16em;font-weight:700;margin:6px 0 12px}
.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}
#voice-audio{position:absolute;width:0;height:0;overflow:hidden}
.room:hover{transform:translateY(-2px);background:var(--glass-2)}
.chatwrap{display:flex;flex-direction:column;height:calc(100vh - 290px);height:calc(100dvh - 290px);min-height:300px}
.chat{flex:1;overflow-y:auto;background:var(--glass);border:1px solid var(--edge);border-radius:var(--r);padding:14px;box-shadow:var(--sh);scroll-behavior:smooth}
.msg{margin:8px 0;max-width:84%;padding:9px 14px;border-radius:20px 20px 20px 6px;background:var(--glass-2);border:1px solid var(--line);word-wrap:break-word;overflow-wrap:anywhere;
  animation:pop .25s cubic-bezier(.2,.8,.2,1)}
.msg.me{margin-left:auto;border-radius:20px 20px 6px 20px;background:linear-gradient(180deg,var(--acc-hi),var(--acc));color:var(--on-acc);border-color:transparent}
.msg .u{font-weight:600;font-size:.78rem;color:var(--acc-tx)}.msg.me .u{color:rgba(255,255,255,.88)}
.msg .t{font-size:.7rem;opacity:.65;margin-left:6px;font-weight:400}
@keyframes pop{from{opacity:0;transform:translateY(6px) scale(.97)}to{opacity:1;transform:none}}
.sys{text-align:center;color:var(--mut);font-size:.84rem;margin:10px 0}
.chatform{display:flex;gap:8px;margin-top:10px}.chatform input{flex:1}
.rules{background:var(--warn-bg)}.rules ol{margin:.5em 0 0;padding-left:1.25em}.rules li{margin:.2em 0}

/* choice cards (post-signup) */
.choice{display:flex;gap:16px;align-items:center;text-align:left;font:inherit;color:var(--tx);width:100%;padding:20px;border:1px solid var(--edge);border-radius:var(--r);background:var(--glass);cursor:pointer;
  box-shadow:var(--sh-sm);transition:transform .2s cubic-bezier(.2,.8,.2,1),background .2s,box-shadow .2s}
.choice:hover{transform:translateY(-2px);background:var(--glass-2);box-shadow:var(--sh)}
.choice:active{transform:scale(.98)}
.choice .ic{font-size:2.1rem;width:56px;height:56px;display:flex;align-items:center;justify-content:center;border-radius:18px;background:var(--glass-3);border:1px solid var(--line);flex:none}
.choice b{font-size:1.1rem;font-weight:600;letter-spacing:-.02em}.choice small{color:var(--mut);font-size:.88rem;line-height:1.4;display:inline-block;margin-top:2px}
.choice.on{border-color:var(--acc);box-shadow:0 0 0 2px var(--glow)}
.wave-h{margin:16px 0 4px;font-size:.78rem;font-weight:700;letter-spacing:.06em;text-transform:uppercase;color:var(--mut)}
.can-do{margin:4px 0 10px;padding-left:1.15em}
.can-do li{margin:.2em 0}
.can-do-k{margin-bottom:0}
.goal-tag{margin-left:6px}
.track-slot{border:1px dashed var(--line);border-radius:var(--r-sm);padding:12px 14px;margin:10px 0;background:var(--glass-3)}

/* tab bar (mobile) */
.tabbar{position:fixed;bottom:max(12px,env(safe-area-inset-bottom));left:12px;right:12px;max-width:460px;margin:0 auto;display:flex;justify-content:space-around;z-index:30;
  padding:6px;border-radius:28px;background:var(--glass);border:1px solid var(--edge);box-shadow:var(--sh),0 0 0 .5px var(--ring)}
.tabbar a,.tabbar .tour-tab{flex:1;text-align:center;text-decoration:none;color:var(--mut);font-size:.7rem;padding:7px 2px;border-radius:22px;transition:background .2s,color .2s;background:none;border:0;font-family:inherit;cursor:pointer;min-width:0}
.tabbar a b,.tabbar .tour-tab b{display:block;font-size:1.25rem;font-weight:400;line-height:1.3}
.tabbar a.on{color:var(--acc-tx);background:var(--glass-2);font-weight:600;box-shadow:var(--sh-sm)}
.tabbar[hidden]{display:none}
.toast{position:fixed;left:50%;transform:translateX(-50%);bottom:96px;background:var(--glass-2);color:var(--tx);padding:12px 20px;border-radius:999px;z-index:50;max-width:90%;
  border:1px solid var(--edge);box-shadow:var(--sh);animation:pop .3s cubic-bezier(.2,.8,.2,1)}
.toast[hidden]{display:none}

/* tables / misc */
table{width:100%;border-collapse:collapse;font-size:.9rem}th,td{text-align:left;padding:10px 8px;border-bottom:1px solid var(--line)}th{font-weight:600;color:var(--mut);font-size:.8rem;letter-spacing:.02em;text-transform:uppercase}
tr:last-child td{border-bottom:0}
.paywall{text-align:center;overflow:hidden}
.paywall::after{content:"";position:absolute;inset:-40% -20% auto auto;width:70%;height:90%;background:radial-gradient(closest-side,rgba(255,159,10,.32),transparent);filter:blur(20px);pointer-events:none;z-index:-1}
.price{font-size:3rem;font-weight:200;letter-spacing:-.05em;line-height:1.1}
.price span{letter-spacing:0}
.cmp td:nth-child(2),.cmp td:nth-child(3),.cmp th:nth-child(2),.cmp th:nth-child(3){text-align:center}
.video{position:relative;padding-top:56.25%;border-radius:var(--r-sm);overflow:hidden;background:#000;box-shadow:var(--sh)}
.video iframe{position:absolute;inset:0;width:100%;height:100%;border:0}
.video-ph{min-height:170px;display:flex;align-items:center;justify-content:center;text-align:center;padding:24px;border:1.5px dashed var(--line);border-radius:var(--r-sm);background:var(--glass-3)}
label.cc{display:flex;gap:10px;align-items:center;font-weight:500;margin:12px 0 2px;color:var(--tx)}label.cc input{width:auto;accent-color:var(--acc)}
.transcript{margin-top:12px}.transcript summary{cursor:pointer;font-weight:500}
code{background:var(--glass-3);border:1px solid var(--line);padding:1px 6px;border-radius:8px;font-size:.85em}
hr{border:0;border-top:1px solid var(--line)}

@media (max-width:899px){.nav .hide-m{display:none}}
@media (max-width:600px){
  .vocab{grid-template-columns:1fr}
  .container{padding:20px 14px 8px}.card{padding:20px;border-radius:22px}
  .top{padding:6px 8px 6px 16px}.nav .logout{padding:7px 14px;font-size:.88rem}
  .chatwrap{height:calc(100vh - 330px);height:calc(100dvh - 330px)}
}
@media (max-width:520px){
  .brand{font-size:.78rem;gap:5px;letter-spacing:-.045em}
  .brand .mark{width:24px;height:24px}
  .top{gap:4px;padding:6px 6px 6px 10px;width:calc(100% - 12px)}
  .nav{gap:0}
  .nav a,.nav button{padding:6px 7px;font-size:.8rem}
  .nav a.btn{padding:7px 10px}
  .nav .logout{padding:6px 8px;font-size:.78rem}
}
@media (min-width:900px){
  .tabbar{display:none!important}body{padding-bottom:40px}body:has(#tabbar[hidden]){padding-bottom:max(16px,env(safe-area-inset-bottom))}.chatwrap{height:calc(100vh - 260px);height:calc(100dvh - 260px)}
  .nav a,.nav button{padding:7px 8px;font-size:.9rem}
}
@media (min-width:1180px){.nav a,.nav button{padding:7px 13px;font-size:.92rem}}
@media (prefers-reduced-motion:reduce){*,*::before,*::after{animation:none!important;transition:none!important;scroll-behavior:auto!important}}
@media (prefers-contrast:more){:root{--glass:rgba(255,255,255,.92);--line:rgba(0,0,0,.35)}}

/* ---- production features: banners, footer, forms, admin ---- */
.banner{margin:0 0 14px;padding:12px 16px;border-radius:var(--r-sm);border:1px solid var(--edge);background:var(--glass-2);box-shadow:var(--sh-sm);-webkit-backdrop-filter:blur(20px) saturate(180%);backdrop-filter:blur(20px) saturate(180%);font-size:.95rem}
.banner.warn{background:var(--warn-bg);border-color:rgba(255,159,10,.4)}
.footer{max-width:980px;margin:26px auto 0;padding:14px 18px 20px;text-align:center;font-size:.85rem;color:var(--mut)}
.footer a{color:var(--mut)}
input[type=number],input[type=date],input[type=time],select,textarea{font:inherit;color:var(--tx);padding:12px 16px;border:1px solid var(--line);border-radius:14px;background:var(--glass-2);min-height:44px}
select:focus,input[type=number]:focus,input[type=date]:focus,input[type=time]:focus{outline:none;border-color:var(--acc-hi);box-shadow:0 0 0 4px var(--glow)}
label.check{display:flex;gap:10px;align-items:flex-start;margin:12px 0 4px;font-size:.92rem;cursor:pointer}
label.check input{width:20px;height:20px;margin-top:2px;accent-color:var(--acc)}
.pwmeter{height:6px;border-radius:999px;background:var(--line);overflow:hidden;margin:8px 4px 2px}
.pwmeter i{display:block;height:100%;width:0;background:var(--bad);transition:width .25s,background .25s}
.pwmeter i[data-s="2"]{background:#ff9f0a}.pwmeter i[data-s="3"],.pwmeter i[data-s="4"]{background:var(--ok)}
.stack label{display:block;margin-top:8px}
.card.danger{border-color:rgba(255,69,58,.35)}
.btn.danger{background:linear-gradient(180deg,#ff6b60,#e5352b);border-color:rgba(255,255,255,.3);color:#fff}
.legal ul{padding-left:20px}.legal li{margin:6px 0}
.bars{display:flex;align-items:flex-end;gap:4px;height:140px;padding-top:6px;overflow-x:auto}
.bar{flex:1;min-width:16px;display:flex;flex-direction:column;align-items:center;justify-content:flex-end;height:100%}
.bar i{display:block;width:100%;min-height:3px;border-radius:6px 6px 2px 2px;background:linear-gradient(180deg,var(--acc-hi),var(--acc))}
.bar span{font-size:.62rem;color:var(--mut);margin-top:3px;white-space:nowrap}
table.cmp td code{white-space:normal}
a.tab{text-align:center;text-decoration:none}

/* ---- language picker ---- */
.langpick{display:inline-flex;align-items:center;gap:8px;margin:4px auto 14px;padding:5px 6px 5px 14px;border-radius:999px;font-size:.88rem;font-weight:650;letter-spacing:.01em;color:var(--acc-tx);background:linear-gradient(180deg,rgba(255,77,141,.16),rgba(124,58,237,.12));border:1px solid rgba(224,20,104,.32);box-shadow:var(--sh-sm)}
.langpick select,.langsel{font:inherit;font-weight:700;padding:8px 34px 8px 12px;border-radius:999px;border:1px solid transparent;color:var(--tx);cursor:pointer;appearance:none;-webkit-appearance:none;background-color:var(--glass-2);background-image:url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='12' height='8' viewBox='0 0 12 8'><path fill='%23e01468' d='M1.2 1.4 6 6.2 10.8 1.4' stroke='%23e01468' stroke-width='1.4' fill='none' stroke-linecap='round'/></svg>");background-repeat:no-repeat;background-position:right 12px center}
.langpick select:focus,.langsel:focus{outline:none;box-shadow:0 0 0 3px var(--glow)}
#locale-root{position:fixed;inset:0;z-index:240;display:flex;align-items:center;justify-content:center;padding:18px;background:rgba(7,9,16,.62)}
.locale-card{width:min(440px,100%);padding:22px 20px;border-radius:22px;background:var(--card,#fff);color:inherit;box-shadow:var(--sh)}
.locale-card .langpick{display:flex;margin:12px 0 16px}
.locale-card select{flex:1}

/* ---- first-run tour ---- */
.nav .tour-open{background:var(--glass-3);border:1px solid var(--line);font-weight:600}
@media (max-width:899px){#tour-open{display:none!important}}
#tour-root{position:fixed;inset:0;z-index:200;pointer-events:none}
.tour-dim{position:fixed;inset:0;z-index:200;background:rgba(7,9,16,.68);pointer-events:auto}
#tour-root[data-has-target="1"] .tour-dim{background:transparent}
.tour-spot{position:fixed;z-index:201;pointer-events:none;background:transparent;border:2px solid #fff;
  box-shadow:0 0 0 4px var(--acc-hi),0 0 0 9999px rgba(7,9,16,.68);transition:top .18s ease,left .18s ease,width .18s ease,height .18s ease}
.tour-card{position:fixed;z-index:202;pointer-events:auto;max-height:min(72vh,440px);overflow:auto;
  padding:16px 16px 14px;border-radius:22px;background:rgba(255,255,255,.97);color:#1d1d1f;
  border:1px solid rgba(20,30,60,.12);box-shadow:var(--sh);
  -webkit-backdrop-filter:blur(22px) saturate(180%);backdrop-filter:blur(22px) saturate(180%)}
.tour-card h2{margin:0 0 .35em;font-size:1.25rem}
.tour-card p{margin:.35em 0}
.tour-kicker{margin:0;font-size:.8rem;font-weight:600;letter-spacing:.01em;color:#3a4a66}
.tour-actions{display:flex;justify-content:space-between;align-items:center;gap:8px;flex-wrap:wrap;margin-top:14px}
.tour-navbtns{display:flex;gap:8px;margin-left:auto}
.tour-card .btn{min-height:44px}
@media (prefers-color-scheme:dark){
  .tour-card{background:rgba(32,18,28,.97);color:#fff5f8;border-color:rgba(255,255,255,.16)}
  .tour-kicker{color:#f0c6d6}
}
@media (max-width:600px){
  .nav .tour-open{padding:7px 10px;font-size:.82rem}
  .tour-card{padding:14px 14px 12px}
}
@media (prefers-reduced-motion:reduce){.tour-spot{transition:none}}
@media (prefers-contrast:more){.tour-card{border:2px solid currentColor}}

/* ---- marketing landing ---- */
.land{position:relative;padding:8px 2px 4px}
.land-glow{position:absolute;left:50%;top:28px;width:min(340px,86%);height:180px;transform:translateX(-50%);pointer-events:none;
  background:radial-gradient(closest-side,rgba(255,45,120,.38),rgba(124,58,237,.12) 55%,transparent 72%);filter:blur(8px)}
.land>*:not(.land-glow){position:relative}
.land-kicker{display:inline-flex;align-items:center;justify-content:center;flex-wrap:wrap;max-width:100%;gap:8px;margin:0 0 12px;padding:6px 12px;border-radius:999px;
  background:var(--glass-2);border:1px solid var(--edge);box-shadow:var(--sh-sm);
  font-size:.72rem;font-weight:800;letter-spacing:.16em;text-transform:uppercase;color:var(--acc-tx)}
.land .wordmark{font-weight:800;letter-spacing:-.055em;line-height:.9;font-size:clamp(3.35rem,13.5vw,5.6rem);margin:0 0 10px}
.wm-line{display:block}
.wm.steve{color:#c4005c}
@supports ((-webkit-background-clip:text) or (background-clip:text)){
  .wm.steve{background:linear-gradient(118deg,#c4005c 0%,#e01468 55%,#7c3aed 130%);-webkit-background-clip:text;background-clip:text;color:transparent}
}
.wm.the{font-weight:450;font-size:.62em;color:var(--mut);margin-right:.08em}
.wm.academy{color:var(--violet);font-weight:800;position:relative}
.gloss{margin:2px 0 12px;font-size:.84rem;letter-spacing:.08em;text-transform:lowercase;color:var(--mut)}
.gloss b{color:var(--acc-tx);font-weight:700;letter-spacing:.02em}
.tagline{font-size:clamp(1.12rem,3.6vw,1.42rem);font-weight:750;letter-spacing:-.03em;line-height:1.22;max-width:22em;margin:0 auto 14px;color:var(--tx)}
.sticker{text-align:left;max-width:440px;width:100%;margin:0 auto 10px;padding:14px 16px 12px;border-radius:22px;background:var(--glass-2);border:1px solid var(--edge);box-shadow:var(--sh)}
.sticker-top{display:flex;align-items:center;gap:8px;margin-bottom:8px;min-width:0}
.sticker-top span{font-size:.68rem;font-weight:800;letter-spacing:.08em;text-transform:uppercase;color:var(--mut)}
.swap-scene{color:var(--acc-tx)!important;letter-spacing:.06em!important;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;min-width:0}
.sticker-top span:last-child{margin-left:auto;flex:0 0 auto}
.sticker-row{display:flex;justify-content:space-between;align-items:center;gap:8px;padding:0 2px}
.sticker-row .k{font-size:.7rem;font-weight:800;letter-spacing:.08em;text-transform:uppercase;color:var(--mut)}
.swap-from,.swap-en{margin:2px 2px 0;font-weight:700;letter-spacing:-.02em;line-height:1.3;overflow-wrap:anywhere}
.swap-from{min-height:1.3em;color:var(--mut);font-size:1.02rem;font-weight:650}
.swap-en{min-height:3.9em;margin:8px 0 0;padding:10px 12px;border-radius:14px;font-size:clamp(1.05rem,3.4vw,1.2rem);font-weight:750;color:var(--acc-tx);
  background:linear-gradient(160deg,rgba(255,45,120,.12),rgba(124,58,237,.10));border:1px solid rgba(224,20,104,.22)}
.swap-en.typing::after{content:"";display:inline-block;width:2px;height:.85em;margin-left:2px;vertical-align:-.08em;background:currentColor;animation:swap-caret .9s steps(1) infinite}
@keyframes swap-caret{50%{opacity:0}}
.swap-cue{display:flex;align-items:center;gap:8px;margin:8px 2px;color:var(--violet);font-weight:800}
.swap-cue span{flex:1;height:1px;background:linear-gradient(90deg,transparent,var(--acc),var(--violet))}
.swap-cue b{font-size:.95rem;line-height:1}
.swap-play{width:44px;height:44px;border:0;border-radius:50%;display:grid;place-items:center;flex:0 0 auto;color:var(--on-acc);background:linear-gradient(160deg,#e01468,#7c3aed);box-shadow:var(--sh-sm);cursor:pointer}
.swap-play[hidden]{display:none}
.swap-dots{display:flex;justify-content:center;gap:2px;margin-top:4px}
.swap-dot{width:44px;height:44px;padding:0;border:0;border-radius:50%;background:transparent;cursor:pointer;position:relative}
.swap-dot::before{content:"";width:10px;height:10px;border-radius:50%;background:var(--line);position:absolute;left:50%;top:50%;transform:translate(-50%,-50%)}
.swap-dot.on::before{background:linear-gradient(160deg,#e01468,#7c3aed);width:12px;height:12px}
.land-trust{max-width:34em;margin:0 auto 14px;color:var(--mut);font-size:.82rem;font-weight:700;letter-spacing:-.01em;line-height:1.35}
.lede{max-width:34em;margin:0 auto 16px;color:var(--mut);font-size:1rem}
.land-cta{max-width:380px;margin:0 auto}
.land-note{margin-top:10px}
.pills{display:flex;flex-wrap:wrap;gap:8px;justify-content:center;list-style:none;padding:0;margin:4px 0 18px}
.pills li{font-size:.78rem;font-weight:700;padding:7px 12px;border-radius:999px;background:var(--glass);border:1px solid var(--edge);box-shadow:var(--sh-sm)}
.land-grid{grid-template-columns:1fr}
.feat{text-align:left;padding:18px 18px 16px}
.feat h3{margin:0 0 4px}
.feat p{margin:0}
.feat-ic{width:42px;height:42px;border-radius:14px;display:grid;place-items:center;font-size:1.3rem;margin-bottom:10px;
  background:linear-gradient(160deg,rgba(255,45,120,.18),rgba(124,58,237,.12));border:1px solid var(--edge)}
@media (min-width:720px){
  .land{padding-top:18px}
  .land-grid{grid-template-columns:1fr 1fr}
}
.place-read{margin:12px 0;padding:14px 16px;border-radius:var(--r-sm);background:var(--glass-2);border:1px solid var(--line)}
.place-read p{margin:6px 0 0}
.place-time{margin:0 0 12px;font-weight:600;font-variant-numeric:tabular-nums;color:var(--violet)}
.place-time.over{color:var(--warn-tx);font-weight:500}
@media (prefers-color-scheme:dark){
  .wm.steve{color:#ff8eb5}
  @supports ((-webkit-background-clip:text) or (background-clip:text)){
    .wm.steve{background:linear-gradient(118deg,#ff8eb5,#e9d5ff);-webkit-background-clip:text;background-clip:text;color:transparent}
  }
}