/* Check4name — chat-first application.
   Uses the design tokens already defined in index.html so the tool and the
   marketing page stay one product rather than two. */

.c4n-app{
  width:min(calc(100% - 2rem),1120px);margin:0 auto clamp(3rem,7vw,5rem);
  border:1px solid var(--border);border-radius:var(--r-xl);
  background:var(--bg);box-shadow:var(--sh-lg);overflow:hidden;
}

/* --- top bar --- */
.c4n-bar{
  display:flex;align-items:center;justify-content:space-between;gap:1rem;
  padding:.8rem 1.1rem;border-bottom:1px solid var(--border);background:var(--surface);
  flex-wrap:wrap;
}
.c4n-bar-left,.c4n-bar-right{display:flex;align-items:center;gap:.6rem;min-width:0}
.c4n-bar strong{letter-spacing:-.03em}
.c4n-chip{
  padding:.2rem .6rem;border-radius:var(--r-full);background:var(--accent-soft);
  color:var(--accent);font-size:var(--text-xs);font-weight:500;white-space:nowrap;
}
.c4n-chip-paid{background:var(--green-soft);color:var(--green)}
.c4n-user{
  font-size:var(--text-xs);color:var(--muted);max-width:190px;
  overflow:hidden;text-overflow:ellipsis;white-space:nowrap;
}

.c4n-btn{
  display:inline-flex;align-items:center;justify-content:center;gap:.5rem;
  height:42px;padding:0 1.15rem;border-radius:var(--r-full);
  font-size:var(--text-sm);font-weight:500;border:1px solid transparent;white-space:nowrap;
}
.c4n-btn-primary{background:var(--ink);color:var(--inverse)}
.c4n-btn-primary:hover{background:var(--ink-hover)}
.c4n-btn-ghost{background:var(--surface-2);color:var(--text);border-color:var(--border)}
.c4n-btn-ghost:hover{background:var(--border)}
.c4n-btn[disabled]{opacity:.45;cursor:not-allowed}
.c4n-link{color:var(--accent);font-size:var(--text-sm);text-decoration:none;background:none;padding:0}
.c4n-link:hover{text-decoration:underline}

.c4n-stage{min-height:min(66vh,560px);display:flex;flex-direction:column}

/* --- chat --- */
.c4n-chat{display:flex;flex-direction:column;flex:1;min-height:0}
.c4n-msgs{
  flex:1;overflow-y:auto;padding:clamp(1.2rem,3vw,2rem);
  display:flex;flex-direction:column;gap:.9rem;max-height:min(58vh,520px);
}
.c4n-msg{display:flex;max-width:min(90%,640px)}
.c4n-msg-user{align-self:flex-end;justify-content:flex-end}
.c4n-msg-assistant{align-self:flex-start}
.c4n-bubble{
  padding:.8rem 1.05rem;border-radius:var(--r-lg);font-size:var(--text-sm);
  line-height:1.62;border:1px solid var(--border);background:var(--surface);
}
.c4n-msg-user .c4n-bubble{background:var(--ink);color:var(--inverse);border-color:var(--ink)}

.c4n-typing{display:flex;gap:5px;align-items:center;padding:1rem 1.1rem}
.c4n-typing span{
  width:7px;height:7px;border-radius:50%;background:var(--faint);
  animation:c4nblink 1.3s infinite ease-in-out;
}
.c4n-typing span:nth-child(2){animation-delay:.18s}
.c4n-typing span:nth-child(3){animation-delay:.36s}
@keyframes c4nblink{0%,80%,100%{opacity:.28;transform:translateY(0)}40%{opacity:1;transform:translateY(-3px)}}

.c4n-suggest{display:flex;flex-wrap:wrap;gap:.5rem;padding:0 clamp(1.2rem,3vw,2rem)}
.c4n-sugg{
  padding:.45rem .85rem;border:1px solid var(--border);border-radius:var(--r-full);
  background:var(--bg);font-size:var(--text-xs);color:var(--muted);
}
.c4n-sugg:hover{border-color:var(--accent);color:var(--accent);background:var(--accent-soft)}

.c4n-composer{
  display:flex;gap:.6rem;align-items:flex-end;
  padding:clamp(.9rem,2vw,1.2rem) clamp(1.2rem,3vw,2rem);
  border-top:1px solid var(--border);background:var(--surface);
}
.c4n-composer textarea{
  flex:1;resize:none;border:1px solid var(--border);border-radius:var(--r-lg);
  padding:.75rem .95rem;font:inherit;font-size:var(--text-sm);background:var(--bg);
  color:var(--text);line-height:1.5;max-height:160px;
}
.c4n-composer textarea:focus{outline:2px solid var(--accent);outline-offset:-1px;border-color:transparent}
.c4n-composer .c4n-btn{width:42px;padding:0;flex:0 0 auto;font-size:1.1rem}

/* --- names --- */
.c4n-names{padding:clamp(1.2rem,3vw,2rem);overflow-y:auto}
.c4n-explain{
  padding:1rem 1.2rem;background:var(--accent-soft);border-radius:var(--r-lg);margin-bottom:1.4rem;
}
.c4n-explain h3{font-size:var(--text-lg);margin-bottom:.3rem}
.c4n-explain p{font-size:var(--text-sm);color:var(--muted)}

.c4n-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(258px,1fr));gap:.9rem}
.c4n-card{
  border:1px solid var(--border);border-radius:var(--r-lg);padding:1rem 1.1rem;
  background:var(--bg);display:flex;flex-direction:column;gap:.65rem;
  transition:box-shadow var(--t),border-color var(--t);
}
.c4n-card:hover{box-shadow:var(--sh-md);border-color:var(--faint)}
.c4n-card-dim{opacity:.62}
.c4n-card header{display:flex;align-items:flex-start;justify-content:space-between;gap:.6rem}
.c4n-card h4{font-size:var(--text-lg);letter-spacing:-.03em}
.c4n-heart{font-size:1.15rem;color:var(--border);line-height:1;padding:.1rem}
.c4n-heart:hover{color:var(--red)}
.c4n-heart.on{color:var(--red)}
.c4n-why{font-size:var(--text-xs);color:var(--muted);line-height:1.55}
.c4n-card footer{display:flex;align-items:center;justify-content:space-between;gap:.5rem;margin-top:auto;padding-top:.3rem}

.c4n-pills{display:flex;flex-wrap:wrap;gap:.35rem}
.c4n-pill{
  display:inline-flex;align-items:center;gap:.25rem;padding:.2rem .55rem;
  border-radius:var(--r-full);font-size:var(--text-xs);font-weight:500;
  background:var(--surface-2);color:var(--muted);border:1px solid transparent;
}
.c4n-pill-req{border-color:currentColor}
.c4n-pill-ok{background:var(--green-soft);color:var(--green)}
.c4n-pill-maybe{background:var(--amber-soft);color:var(--amber)}
.c4n-pill-no{background:var(--red-soft);color:var(--red)}
.c4n-pill-idk{background:var(--surface-2);color:var(--faint)}
.c4n-pill b{font-weight:700;opacity:.7}
.c4n-pill-wait i{
  width:26px;height:7px;border-radius:var(--r-full);
  background:linear-gradient(90deg,var(--border),var(--surface-2),var(--border));
  background-size:200% 100%;animation:c4nshine 1.3s linear infinite;
}
@keyframes c4nshine{to{background-position:-200% 0}}

.c4n-band{padding:.18rem .55rem;border-radius:var(--r-full);font-size:var(--text-xs);font-weight:600}
.c4n-band-strong{background:var(--green-soft);color:var(--green)}
.c4n-band-workable{background:var(--accent-soft);color:var(--accent)}
.c4n-band-weak{background:var(--amber-soft);color:var(--amber)}
.c4n-band-blocked{background:var(--red-soft);color:var(--red)}
.c4n-band-wait{background:var(--surface-2);color:var(--faint)}

.c4n-names-actions{display:flex;flex-wrap:wrap;gap:.8rem;align-items:center;margin-top:1.4rem}
.c4n-own{display:flex;gap:.5rem;flex:1;min-width:250px}
.c4n-own input{
  flex:1;height:42px;padding:0 .9rem;border:1px solid var(--border);
  border-radius:var(--r-full);font:inherit;font-size:var(--text-sm);background:var(--bg);color:var(--text);
}
.c4n-own input:focus{outline:2px solid var(--accent);outline-offset:-1px}

/* --- paywall --- */
.c4n-paywall{
  margin-top:1.8rem;padding:1.3rem 1.5rem;border:1px solid var(--border);
  border-radius:var(--r-lg);background:var(--surface);
}
.c4n-paywall h3{font-size:var(--text-lg);margin-bottom:.6rem}
.c4n-paywall ul{list-style:none;display:flex;flex-direction:column;gap:.35rem;margin-bottom:1rem}
.c4n-paywall li{font-size:var(--text-sm);color:var(--muted);padding-left:1.35rem;position:relative}
.c4n-paywall li::before{content:'✓';position:absolute;left:0;color:var(--green);font-weight:700}

/* --- detail --- */
.c4n-detail{padding:clamp(1.2rem,3vw,2rem);overflow-y:auto}
.c4n-detail h2{font-size:var(--text-xl);margin:.7rem 0 .3rem}
.c4n-lead{color:var(--muted);font-size:var(--text-sm);margin-bottom:1.6rem}
.c4n-block{padding-top:1.5rem;margin-top:1.5rem;border-top:1px solid var(--border)}
.c4n-block h3{font-size:var(--text-lg);margin-bottom:.85rem}
.c4n-block h4{font-size:var(--text-sm);font-weight:600;margin:1rem 0 .4rem}

.c4n-domrows{display:flex;flex-direction:column;gap:.4rem}
.c4n-domrow{
  display:grid;grid-template-columns:1fr auto auto auto;gap:.8rem;align-items:center;
  padding:.65rem .9rem;border:1px solid var(--border);border-radius:var(--r-md);
  font-size:var(--text-sm);background:var(--bg);
}
.c4n-dom-name{font-weight:500;word-break:break-all}
.c4n-dom-name em{font-style:normal;font-size:var(--text-xs);color:var(--accent);font-weight:600}
.c4n-dom-status{font-weight:600;white-space:nowrap}
.c4n-dom-src{font-size:var(--text-xs);color:var(--faint);white-space:nowrap}
.c4n-dom-free{background:var(--green-soft);border-color:transparent}
.c4n-dom-free .c4n-dom-status{color:var(--green)}
.c4n-dom-likely-free{background:var(--amber-soft);border-color:transparent}
.c4n-dom-likely-free .c4n-dom-status{color:var(--amber)}
.c4n-dom-taken{background:var(--red-soft);border-color:transparent}
.c4n-dom-taken .c4n-dom-status{color:var(--red)}

.c4n-classes{display:flex;flex-wrap:wrap;gap:.45rem}
.c4n-class{
  padding:.3rem .7rem;border-radius:var(--r-full);background:var(--surface-2);
  font-size:var(--text-xs);color:var(--muted);
}
.c4n-class b{color:var(--text)}

/* --- trademark --- */
.c4n-tm-head{display:flex;align-items:center;gap:.7rem;flex-wrap:wrap;margin-bottom:.9rem}
.c4n-risk{padding:.25rem .7rem;border-radius:var(--r-full);font-size:var(--text-xs);font-weight:600}
.c4n-risk-low{background:var(--green-soft);color:var(--green)}
.c4n-risk-medium{background:var(--amber-soft);color:var(--amber)}
.c4n-risk-high{background:var(--red-soft);color:var(--red)}
.c4n-risk-unknown{background:var(--surface-2);color:var(--muted)}
.c4n-basis{font-size:var(--text-xs);color:var(--muted)}
.c4n-tm p{font-size:var(--text-sm);color:var(--muted);line-height:1.62;margin-bottom:.6rem}
.c4n-list{list-style:none;display:flex;flex-direction:column;gap:.4rem;margin-bottom:.8rem}
.c4n-list li{font-size:var(--text-sm);color:var(--muted);padding-left:1rem;position:relative}
.c4n-list li::before{content:'·';position:absolute;left:.3rem;color:var(--faint)}
.c4n-muted{color:var(--faint)}
.c4n-bad{color:var(--red);font-weight:600}
.c4n-reco{padding:.75rem 1rem;background:var(--accent-soft);border-radius:var(--r-md);color:var(--text)!important}
.c4n-links{display:flex;flex-wrap:wrap;gap:.45rem;margin-bottom:.7rem}
.c4n-links a{
  padding:.35rem .75rem;border:1px solid var(--border);border-radius:var(--r-full);
  font-size:var(--text-xs);text-decoration:none;color:var(--muted);background:var(--bg);
}
.c4n-links a:hover{border-color:var(--accent);color:var(--accent)}
.c4n-disclaimer{
  font-size:var(--text-xs)!important;color:var(--faint)!important;
  padding-top:.8rem;border-top:1px solid var(--border);margin-top:1rem;
}

.c4n-note{font-size:var(--text-xs);color:var(--faint);line-height:1.55;margin-top:.6rem}
.c4n-warn{color:var(--amber)}

/* --- loading --- */
.c4n-loading{
  flex:1;display:flex;flex-direction:column;align-items:center;justify-content:center;
  gap:1rem;padding:4rem 2rem;color:var(--muted);font-size:var(--text-sm);
}
.c4n-loading.small{padding:1.6rem;flex-direction:row}
.c4n-spinner{
  width:26px;height:26px;border:2.5px solid var(--border);border-top-color:var(--accent);
  border-radius:50%;animation:c4nspin .8s linear infinite;
}
@keyframes c4nspin{to{transform:rotate(360deg)}}

/* --- modal --- */
.c4n-modal{
  position:fixed;inset:0;z-index:200;background:rgba(10,13,20,.45);
  display:grid;place-items:center;padding:1.2rem;backdrop-filter:blur(3px);
}
.c4n-modal-box{
  background:var(--bg);border-radius:var(--r-xl);padding:1.9rem;
  width:min(100%,430px);box-shadow:var(--sh-lg);position:relative;
}
.c4n-modal-x{position:absolute;top:.9rem;right:1.1rem;font-size:1.4rem;color:var(--faint);line-height:1}
.c4n-modal-box h3{font-size:var(--text-lg);margin-bottom:.5rem}
.c4n-modal-box p{font-size:var(--text-sm);color:var(--muted);margin-bottom:1.1rem}
.c4n-modal-box form{display:flex;flex-direction:column;gap:.6rem;margin-bottom:.6rem}
.c4n-modal-box input{
  height:46px;padding:0 1rem;border:1px solid var(--border);border-radius:var(--r-md);
  font:inherit;font-size:var(--text-sm);background:var(--bg);color:var(--text);
}
.c4n-modal-box input:focus{outline:2px solid var(--accent);outline-offset:-1px}
.c4n-google{width:100%}

/* --- toast --- */
.c4n-toast{
  position:fixed;left:50%;bottom:1.6rem;transform:translate(-50%,140%);
  background:var(--ink);color:var(--inverse);padding:.75rem 1.2rem;
  border-radius:var(--r-full);font-size:var(--text-sm);z-index:300;
  box-shadow:var(--sh-lg);transition:transform 260ms cubic-bezier(.2,.7,.3,1);
  max-width:min(92vw,460px);text-align:center;
}
.c4n-toast.on{transform:translate(-50%,0)}

@media (max-width:640px){
  .c4n-domrow{grid-template-columns:1fr auto;row-gap:.35rem}
  .c4n-grid{grid-template-columns:1fr}
  .c4n-msg{max-width:96%}
}

@media (prefers-reduced-motion:reduce){
  .c4n-typing span,.c4n-spinner,.c4n-pill-wait i{animation:none}
  .c4n-toast{transition:none}
}

.c4n-brandcta{
  display:flex;align-items:center;justify-content:space-between;gap:1rem;flex-wrap:wrap;
  padding:1.1rem 1.3rem;background:var(--surface);border-radius:var(--r-lg);
}
.c4n-brandcta .c4n-note{margin-top:.2rem}

/* --- saved projects --- */
.c4n-projlist{list-style:none;display:flex;flex-direction:column;gap:.4rem;max-height:52vh;overflow-y:auto}
.c4n-projlist li{display:flex;align-items:stretch;gap:.3rem;border:1px solid var(--border);border-radius:var(--r-md);overflow:hidden}
.c4n-projlist li.on{border-color:var(--accent);background:var(--accent-soft)}
.c4n-projlist li > button:first-child{
  flex:1;text-align:left;padding:.65rem .85rem;display:flex;flex-direction:column;gap:.15rem;
}
.c4n-projlist li:hover{border-color:var(--faint)}
.c4n-projlist b{font-size:var(--text-sm);font-weight:500}
.c4n-projlist span{font-size:var(--text-xs);color:var(--muted)}
.c4n-proj-del{padding:0 .8rem;color:var(--faint);font-size:1.1rem}
.c4n-proj-del:hover{color:var(--red);background:var(--red-soft)}

/* --- chat: ready state --- */
.c4n-ready{
  display:flex;align-items:center;justify-content:space-between;gap:1rem;flex-wrap:wrap;
  margin:0 clamp(1.2rem,3vw,2rem) .8rem;padding:.9rem 1.1rem;
  background:var(--accent-soft);border-radius:var(--r-lg);
}
.c4n-ready b{display:block;font-size:var(--text-sm)}
.c4n-ready span{font-size:var(--text-xs);color:var(--muted)}

/* --- names: screening status, card tags --- */
.c4n-screening{display:flex;align-items:center;gap:.5rem;margin:0 0 .9rem}
.c4n-spinner-xs{width:14px;height:14px;border-width:2px;flex:0 0 auto}
.c4n-card-tags{display:flex;align-items:center;gap:.35rem;flex-wrap:wrap}
.c4n-risk-xs{padding:.18rem .5rem}
.c4n-tm-reg{font-size:var(--text-sm);color:var(--muted);margin-bottom:.6rem}

/* --- detail / dossier chrome --- */
.c4n-detail-top{display:flex;align-items:center;justify-content:space-between;gap:.8rem;flex-wrap:wrap}
.c4n-dossier{padding:clamp(1.2rem,3vw,2rem);overflow-y:auto}
.c4n-dossier-actions{display:flex;gap:.5rem;flex-wrap:wrap}
.c4n-dossier-head{padding:1.4rem 0 .4rem}
.c4n-dossier-head h2{font-size:var(--text-2xl);margin:.3rem 0}
.c4n-dossier-head .c4n-lead{margin-bottom:.8rem}
.c4n-dossier-head p{font-size:var(--text-sm);color:var(--muted)}
.c4n-kicker{font-size:var(--text-xs);color:var(--accent);font-weight:600;letter-spacing:.04em;text-transform:uppercase}
.c4n-dossier-verdict{display:flex;align-items:center;gap:.45rem;flex-wrap:wrap;margin:.4rem 0 .6rem}
.c4n-steps{padding-left:1.3rem;display:flex;flex-direction:column;gap:.45rem}
.c4n-steps li{font-size:var(--text-sm);color:var(--text)}
.c4n-modal-box .c4n-note a{color:var(--accent)}

/* --- print: the dossier alone, on paper --- */
@media print{
  body.c4n-print > *:not(main){display:none!important}
  body.c4n-print main > *:not(#c4n){display:none!important}
  body.c4n-print .c4n-bar,body.c4n-print .c4n-noprint{display:none!important}
  body.c4n-print .c4n-app{border:none;box-shadow:none;width:100%;margin:0}
  body.c4n-print .c4n-dossier{padding:0;overflow:visible}
  body.c4n-print .c4n-block{break-inside:avoid}
  body.c4n-print a[href]::after{content:' (' attr(href) ')';font-size:.75em;color:#666;word-break:break-all}
  body.c4n-print .c4n-links a::after{content:''}
  body.c4n-print .c4n-stage{min-height:0}
}