:root{--teal:#06B6D4;--teal-d:#0891B2;--teal-l:#CFFAFE;--coral:#F87171;--coral-d:#EF4444;--cream:#FAFAF9;--text:#333333;--muted:#6b7280;--line:#e7e5e4;--white:#fff;--r:16px;--shadow:0 6px 24px rgba(6,182,212,.12)}
*{box-sizing:border-box}html,body{margin:0}
body{font-family:"Nunito","Segoe UI",system-ui,-apple-system,sans-serif;background:var(--cream);color:var(--text);line-height:1.6;display:flex;flex-direction:column;min-height:100vh}
main{flex:1}a{color:var(--teal-d)}img{max-width:100%}
.container{width:min(1100px,92%);margin:0 auto}
.btn{display:inline-flex;align-items:center;gap:.4rem;border:0;border-radius:999px;padding:.75rem 1.4rem;font:inherit;font-weight:700;cursor:pointer;text-decoration:none;transition:transform .1s,background .2s}
.btn:active{transform:scale(.97)}.btn-primary{background:var(--teal);color:#fff}.btn-primary:hover{background:var(--teal-d)}
.btn-coral{background:var(--coral);color:#fff}.btn-coral:hover{background:var(--coral-d)}
.btn-ghost{background:transparent;color:var(--text);border:2px solid var(--line)}.btn-ghost:hover{border-color:var(--teal)}
.btn-sm{padding:.4rem .9rem;font-size:.9rem}.btn[disabled]{opacity:.55;cursor:not-allowed}
/* header */
.site-header{background:#fff;border-bottom:1px solid var(--line);position:sticky;top:0;z-index:20}
.nav{display:flex;align-items:center;justify-content:space-between;height:64px;gap:1rem}
.logo{font-weight:800;font-size:1.3rem;color:var(--text);text-decoration:none;display:flex;align-items:center;gap:.4rem}
.logo span.dot{width:30px;height:30px;border-radius:10px;background:linear-gradient(135deg,var(--teal),var(--coral));display:inline-grid;place-items:center;color:#fff;font-size:1rem}
.nav-links{display:flex;gap:.6rem;align-items:center}.nav-links a:not(.btn){color:var(--text);text-decoration:none;font-weight:600;padding:.3rem .5rem}
.nav-toggle{display:none;background:none;border:0;font-size:1.6rem;cursor:pointer}
@media(max-width:760px){.nav-toggle{display:block}.nav-links{display:none;position:absolute;top:64px;left:0;right:0;background:#fff;flex-direction:column;padding:1rem;border-bottom:1px solid var(--line)}.nav-links.open{display:flex}}
/* hero */
.hero{padding:4.5rem 0 3rem;background:radial-gradient(circle at 80% 0,var(--teal-l),transparent 55%),radial-gradient(circle at 0 100%,#fee2e2,transparent 45%)}
.hero-grid{display:grid;grid-template-columns:1.2fr 1fr;gap:2.5rem;align-items:center}
.hero h1{font-size:clamp(2rem,5vw,3.3rem);line-height:1.15;margin:0 0 1rem}.hero h1 em{color:var(--teal-d);font-style:normal}
.lead{font-size:1.15rem;color:#4b5563}.cta-row{display:flex;gap:.8rem;flex-wrap:wrap;margin-top:1.5rem}
.hero-card{background:#fff;border-radius:24px;box-shadow:var(--shadow);padding:1.2rem}
@media(max-width:860px){.hero-grid{grid-template-columns:1fr}}
section{padding:3.5rem 0}.section-title{text-align:center;font-size:clamp(1.6rem,3.5vw,2.2rem);margin:0 0 .5rem}.section-sub{text-align:center;color:var(--muted);margin:0 auto 2rem;max-width:640px}
.grid{display:grid;gap:1.2rem}.g3{grid-template-columns:repeat(auto-fit,minmax(240px,1fr))}.g2{grid-template-columns:repeat(auto-fit,minmax(300px,1fr))}
.card{background:#fff;border:1px solid var(--line);border-radius:var(--r);padding:1.4rem}
.card h3{margin-top:0}.icon{font-size:1.8rem}
.promise{background:var(--teal);color:#fff;text-align:center;border-radius:24px;padding:2.5rem 1.5rem;font-size:clamp(1.2rem,3vw,1.7rem);font-weight:700}
.compare p{font-size:1.08rem}
.testimonial{position:relative}.testimonial .tag{position:absolute;top:.8rem;right:.8rem;background:#fef3c7;color:#92400e;font-size:.72rem;font-weight:700;padding:.15rem .5rem;border-radius:6px}
.parents{background:#fff7ed;border:2px dashed #fdba74}
/* forms */
.auth-wrap{display:grid;place-items:center;padding:3rem 1rem}
.auth-card{background:#fff;border-radius:24px;box-shadow:var(--shadow);padding:2rem;width:min(440px,100%)}
.auth-card h1{margin-top:0;font-size:1.6rem}
label{display:block;font-weight:700;margin:.8rem 0 .3rem;font-size:.95rem}
input[type=text],input[type=email],input[type=password],textarea,select{width:100%;padding:.75rem .9rem;border:2px solid var(--line);border-radius:12px;font:inherit;background:#fff;color:var(--text)}
input:focus,textarea:focus{outline:none;border-color:var(--teal)}
.check{display:flex;gap:.5rem;align-items:flex-start;font-weight:400;font-size:.9rem}.check input{margin-top:.3rem}
.hint{font-size:.85rem;color:var(--muted)}.alert{padding:.75rem 1rem;border-radius:12px;margin:.8rem 0;font-size:.95rem}
.alert-error{background:#fee2e2;color:#991b1b}.alert-ok{background:#ccfbf1;color:#115e59}.alert-info{background:var(--teal-l);color:#155e75}
.hidden{display:none!important}
/* dashboard */
.dash{padding:2rem 0}.dash-grid{display:grid;grid-template-columns:2fr 1fr;gap:1.2rem}@media(max-width:860px){.dash-grid{grid-template-columns:1fr}}
.status{display:flex;align-items:center;justify-content:space-between;gap:1rem;flex-wrap:wrap}
.progress{height:10px;background:var(--line);border-radius:999px;overflow:hidden;margin:.4rem 0}.progress>div{height:100%;background:var(--teal)}
.list{list-style:none;padding:0;margin:0}.list li{display:flex;align-items:center;justify-content:space-between;gap:.6rem;padding:.65rem 0;border-bottom:1px solid var(--line)}
.list li:last-child{border:0}.pill{font-size:.75rem;font-weight:700;padding:.15rem .6rem;border-radius:999px;background:var(--teal-l);color:#155e75}
.pill.completed{background:#dcfce7;color:#166534}.pill.paused{background:#f5f5f4;color:#57534e}.pill.coral{background:#fee2e2;color:#991b1b}
.goal-done{text-decoration:line-through;color:var(--muted)}.inline-form{display:flex;gap:.5rem;margin-top:.8rem}
/* chat */
.chat-app{display:grid;grid-template-columns:280px 1fr;height:calc(100vh - 64px)}
.sidebar{background:#fff;border-right:1px solid var(--line);display:flex;flex-direction:column;overflow:hidden}
.sidebar .top{padding:1rem;border-bottom:1px solid var(--line)}.conv-list{overflow-y:auto;flex:1;padding:.5rem}
.conv{display:flex;align-items:center;gap:.3rem;padding:.6rem .7rem;border-radius:12px;cursor:pointer}.conv:hover{background:var(--cream)}.conv.active{background:var(--teal-l)}
.conv .t{flex:1;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;font-weight:600;font-size:.95rem}
.conv button{background:none;border:0;cursor:pointer;opacity:.5;font-size:.9rem;padding:.2rem}.conv button:hover{opacity:1}
.chat-main{display:flex;flex-direction:column;min-width:0}
.chat-head{padding:.8rem 1rem;border-bottom:1px solid var(--line);background:#fff;display:flex;align-items:center;gap:.6rem}
.chat-head h2{margin:0;font-size:1.05rem;flex:1;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.messages{flex:1;overflow-y:auto;padding:1.2rem;display:flex;flex-direction:column;gap:.8rem}
.bubble{max-width:min(75%,640px);padding:.75rem 1rem;border-radius:18px;white-space:pre-wrap;word-wrap:break-word;box-shadow:0 1px 2px rgba(0,0,0,.05)}
.bubble.user{align-self:flex-end;background:var(--teal);color:#fff;border-bottom-right-radius:4px}
.bubble.assistant{align-self:flex-start;background:#fff;border:1px solid var(--line);border-bottom-left-radius:4px}
.bubble.flagged{border-left:4px solid var(--coral)}
.bubble time{display:block;font-size:.72rem;opacity:.7;margin-top:.3rem}
.typing{align-self:flex-start;background:#fff;border:1px solid var(--line);border-radius:18px;padding:.8rem 1rem;display:flex;gap:4px}
.typing span{width:8px;height:8px;border-radius:50%;background:var(--teal);animation:b 1.2s infinite}.typing span:nth-child(2){animation-delay:.2s}.typing span:nth-child(3){animation-delay:.4s}
@keyframes b{0%,60%,100%{transform:translateY(0);opacity:.4}30%{transform:translateY(-5px);opacity:1}}
.composer{border-top:1px solid var(--line);background:#fff;padding:.8rem;display:flex;gap:.6rem;align-items:flex-end}
.composer textarea{resize:none;max-height:160px;min-height:48px}
.meter{font-size:.8rem;color:var(--muted);padding:0 1rem .5rem;background:#fff}
.empty{margin:auto;text-align:center;color:var(--muted);max-width:420px}
.locked{background:#fff7ed;border-top:1px solid #fed7aa;padding:1rem;text-align:center}
.side-toggle{display:none}
@media(max-width:760px){.chat-app{grid-template-columns:1fr}.sidebar{position:fixed;top:64px;bottom:0;left:0;width:85%;max-width:320px;z-index:15;transform:translateX(-100%);transition:transform .2s;box-shadow:var(--shadow)}.sidebar.open{transform:none}.side-toggle{display:inline-flex}.bubble{max-width:88%}}
/* pricing */
.price-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(280px,1fr));gap:1.4rem;max-width:820px;margin:0 auto}
.plan{background:#fff;border:2px solid var(--line);border-radius:24px;padding:2rem;position:relative}.plan.featured{border-color:var(--teal);box-shadow:var(--shadow)}
.plan .price{font-size:2.4rem;font-weight:800}.plan .price small{font-size:1rem;color:var(--muted);font-weight:600}
.plan ul{list-style:none;padding:0}.plan li{padding:.35rem 0}.plan li::before{content:"✓ ";color:var(--teal-d);font-weight:800}.plan li.no::before{content:"— ";color:var(--muted)}
.badge{position:absolute;top:-12px;right:20px;background:var(--coral);color:#fff;font-weight:800;font-size:.8rem;padding:.25rem .8rem;border-radius:999px}
table.cmp{width:100%;border-collapse:collapse;background:#fff;border-radius:var(--r);overflow:hidden;margin-top:2rem}table.cmp th,table.cmp td{padding:.75rem;border-bottom:1px solid var(--line);text-align:left}table.cmp th{background:var(--teal-l)}
/* legal */
.legal{padding:2.5rem 0;max-width:800px}.legal h1{margin-bottom:.2rem}.legal h2{margin-top:2rem;color:var(--teal-d);font-size:1.25rem}
.notice{background:#fef3c7;color:#92400e;padding:.8rem 1rem;border-radius:12px;font-size:.9rem}
/* footer */
.site-footer{background:#1f2937;color:#d1d5db;padding:2.5rem 0 1.5rem;margin-top:2rem}.site-footer a{color:#a5f3fc;text-decoration:none}.site-footer a:hover{text-decoration:underline}
.foot-grid{display:grid;grid-template-columns:2fr 1fr 1fr;gap:1.5rem}@media(max-width:760px){.foot-grid{grid-template-columns:1fr}}
.site-footer h4{color:#fff;margin:0 0 .6rem}.site-footer ul{list-style:none;padding:0;margin:0}.site-footer li{padding:.2rem 0}
.copy{border-top:1px solid #374151;margin-top:1.5rem;padding-top:1rem;font-size:.85rem;color:#9ca3af}
.chat-page .site-footer{display:none}
/* cookie banner */
.cookie{position:fixed;left:1rem;right:1rem;bottom:1rem;max-width:560px;margin:0 auto;background:#fff;border-radius:18px;box-shadow:0 10px 40px rgba(0,0,0,.18);padding:1.1rem 1.2rem;z-index:50;border:1px solid var(--line)}
.cookie p{margin:0 0 .8rem;font-size:.92rem}.cookie .row{display:flex;gap:.5rem;flex-wrap:wrap;justify-content:flex-end}
.toast{position:fixed;top:80px;left:50%;transform:translateX(-50%);background:var(--text);color:#fff;padding:.7rem 1.2rem;border-radius:999px;z-index:60;font-weight:600}
.confetti{font-size:2.5rem;text-align:center;animation:pop .6s}@keyframes pop{0%{transform:scale(.3)}80%{transform:scale(1.2)}100%{transform:scale(1)}}

/* v0.3.0 polish */
.typing{align-items:center;gap:.6rem;box-shadow:0 2px 8px rgba(6,182,212,.12)}
.typing .dots{display:flex;gap:5px}.typing .dots span{width:9px;height:9px;border-radius:50%;background:var(--teal);animation:b 1.2s infinite}
.typing .dots span:nth-child(2){animation-delay:.2s}.typing .dots span:nth-child(3){animation-delay:.4s}
.typing .lbl{font-size:.9rem;color:#555;font-style:italic}
.welcome .starters{display:flex;flex-wrap:wrap;gap:.5rem;margin-top:.7rem}
.starter{background:#ECFEFF;border:1px solid var(--teal);color:#0E7490;border-radius:999px;padding:.45rem .9rem;font:inherit;font-size:.9rem;cursor:pointer}
.starter:hover,.starter:focus-visible{background:var(--teal);color:#fff;outline:none}
.goal-cta{font-size:1.1rem;padding:.8rem 1.4rem;width:100%;justify-content:center;margin:1rem 0 .4rem}
.modal-bg{position:fixed;inset:0;background:rgba(51,51,51,.45);display:flex;align-items:center;justify-content:center;z-index:70;padding:1rem}
.modal{background:#FAFAF9;border-radius:18px;padding:1.5rem;max-width:440px;width:100%;box-shadow:0 10px 40px rgba(0,0,0,.2)}
.modal h2{margin-top:0}.modal label{display:block;font-weight:600;margin:.8rem 0 .3rem}.modal .row{display:flex;gap:.6rem;justify-content:flex-end;margin-top:1.2rem}
.milestone{position:fixed;bottom:24px;left:50%;transform:translateX(-50%);background:#fff;border:2px solid var(--teal);border-left:6px solid #F87171;color:#333;padding:.9rem 1.2rem;border-radius:14px;z-index:65;max-width:min(92vw,460px);box-shadow:0 8px 30px rgba(0,0,0,.15);display:flex;gap:.8rem;align-items:flex-start;animation:msin .5s ease-out}@keyframes msin{from{opacity:0;bottom:0}to{opacity:1;bottom:24px}}
.milestone button{background:none;border:0;font-size:1.2rem;cursor:pointer;color:#666}
@media (prefers-reduced-motion:reduce){.typing span,.typing .dots span,.confetti,.milestone{animation:none!important}.typing .dots span{opacity:.7}}
.typing .dots,.typing .lbl{width:auto;height:auto;border-radius:0;background:none;animation:none;white-space:nowrap}
.price-grid-4{max-width:1180px;grid-template-columns:repeat(auto-fit,minmax(240px,1fr))}.faq details{background:#fff;border:1px solid var(--line);border-radius:12px;padding:.8rem 1rem;margin:.5rem 0}.faq summary{cursor:pointer}

/* v0.6.0 pill composer */
#composerWrap{position:relative;background:#fff;border-top:1px solid var(--line);padding:.6rem .8rem .4rem}
.composer.pill{border:1.5px solid var(--line);border-radius:999px;padding:.35rem .4rem;background:#fff;display:flex;align-items:flex-end;gap:.35rem;box-shadow:0 2px 10px rgba(0,0,0,.05);border-top:1.5px solid var(--line)}
.composer.pill:focus-within{border-color:var(--teal);box-shadow:0 0 0 3px var(--teal-l)}
.composer.pill textarea{flex:1;border:0!important;outline:0;box-shadow:none!important;background:transparent;min-height:40px;max-height:160px;padding:.55rem .3rem;font:inherit;font-size:1rem;line-height:1.4;resize:none}
.icon-btn{flex:none;width:40px;height:40px;border-radius:50%;border:0;background:#f3f4f6;color:#4b5563;display:grid;place-items:center;cursor:pointer;transition:background .15s}
.icon-btn:hover{background:#e5e7eb}.icon-btn:focus-visible,.send-btn:focus-visible{outline:3px solid var(--teal-l)}
.send-btn{flex:none;width:40px;height:40px;border-radius:50%;border:0;background:var(--coral);color:#fff;display:grid;place-items:center;cursor:pointer}
.send-btn:hover{background:var(--coral-d)}.send-btn:disabled{opacity:.5;cursor:default}
.mic.listening{background:var(--coral);color:#fff;animation:micpulse 1.2s ease-in-out infinite}
@keyframes micpulse{0%{box-shadow:0 0 0 0 rgba(248,113,113,.55)}70%{box-shadow:0 0 0 10px rgba(248,113,113,0)}100%{box-shadow:0 0 0 0 rgba(248,113,113,0)}}
.mic.unsupported{opacity:.4;cursor:not-allowed}
.attach-wrap{position:relative;flex:none}
.attach-menu{position:absolute;bottom:50px;left:0;z-index:30;background:#fff;border:1px solid var(--line);border-radius:14px;box-shadow:0 10px 30px rgba(0,0,0,.12);padding:.4rem;width:260px}
.attach-menu button{display:block;width:100%;text-align:left;background:none;border:0;padding:.6rem .7rem;border-radius:10px;font:inherit;cursor:pointer;color:var(--text)}
.attach-menu button:hover{background:var(--cream)}.attach-menu small{color:var(--muted)}
.attach-hint{font-size:.78rem;color:var(--muted);margin:.3rem .5rem .2rem;line-height:1.35}
.attach-chips{display:flex;gap:.5rem;flex-wrap:wrap;margin:0 0 .45rem .3rem}.attach-chips:empty{display:none}
.chip{display:inline-flex;align-items:center;gap:.45rem;background:var(--cream);border:1px solid var(--line);border-radius:12px;padding:.3rem .45rem;font-size:.85rem;max-width:100%}
.chip img{width:44px;height:44px;object-fit:cover;border-radius:8px}.chip .nm{max-width:200px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.chip button{border:0;background:#e5e7eb;border-radius:50%;width:22px;height:22px;cursor:pointer;line-height:1}
.mic-note{font-size:.8rem;color:var(--muted);margin:.4rem .5rem 0}.mic-note button{border:0;background:none;color:var(--teal-d);font-weight:600;cursor:pointer}
.drop-overlay{position:fixed;inset:0;background:rgba(6,182,212,.12);border:3px dashed var(--teal);z-index:50;display:grid;place-items:center;font-size:1.2rem;color:var(--teal-d);pointer-events:none}
.bubble-img{display:block;max-width:180px;max-height:180px;border-radius:10px;margin-bottom:.4rem}
@media (max-width:640px){#composerWrap{padding:.5rem .5rem .3rem}.attach-menu{width:min(280px,85vw)}}

.cooloff{margin:0 .3rem .5rem;padding:.6rem .9rem;border-radius:14px;background:#FEF2F2;border:1px solid #FECACA;color:#7f1d1d;font-size:.92rem}
.composer.pill.cooling{opacity:.6}

/* v0.8.0 rich assistant text */
.bubble .rich{white-space:pre-wrap}.bubble .rich strong{font-weight:700}.bubble .rich .final{display:inline-block;margin-top:.35rem;padding:.2rem .6rem;border-radius:10px;background:rgba(6,182,212,.12);font-weight:700}