:root{
  --bg:#E9EEF2; --surface:#FFFFFF; --ink:#16263A; --muted:#5B6B7D; --line:#C8D2DC;
  --thread:#1F6B5C; --thread-soft:#D6E8E2; --you:#D9A21B; --you-soft:#FBF0D3;
  --li:#0A66C2; --warn:#9A3B1E; --warn-soft:#F6E1D9;
  --display:"Bricolage Grotesque","Avenir Next","Segoe UI",system-ui,sans-serif;
  --body:"Atkinson Hyperlegible","Segoe UI",system-ui,-apple-system,sans-serif;
  box-sizing:border-box;
  padding-top:env(safe-area-inset-top,0px); padding-bottom:env(safe-area-inset-bottom,0px);
  color-scheme:light;
}
@media (prefers-color-scheme: dark){
  :root{
    --bg:#0E1620; --surface:#16212D; --ink:#E4ECF3; --muted:#93A4B6; --line:#293A4B;
    --thread:#4DB39A; --thread-soft:#163A33; --you:#E8B53A; --you-soft:#3A2F12;
    --li:#2E86DE; --warn:#F08A62; --warn-soft:#3B2017; color-scheme:dark;
  }
}
*,*::before,*::after{box-sizing:inherit}
html{scroll-padding-top:env(safe-area-inset-top,0px)}
body{margin:0;background:var(--bg);color:var(--ink);font:400 16px/1.55 var(--body);-webkit-font-smoothing:antialiased}
h1,h2,h3{font-family:var(--display);font-weight:700;line-height:1.1;margin:0}
button,input,select,textarea{font:inherit;color:inherit}
a{color:var(--thread)}
:focus-visible{outline:3px solid var(--thread);outline-offset:2px;border-radius:6px}
img{max-width:100%}

.wordmark{font-family:var(--display);font-size:1.1rem;font-weight:700;display:inline-flex;align-items:center;gap:.5rem;color:var(--ink);text-decoration:none}

/* buttons & inputs */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:.5rem;padding:.75rem 1.2rem;border-radius:10px;border:1px solid transparent;font-weight:700;cursor:pointer;text-decoration:none;color:var(--ink);background:transparent}
.btn-primary{background:var(--thread);color:#fff}
.btn-primary:hover{filter:brightness(1.07)}
.btn-primary:disabled{opacity:.5;cursor:not-allowed}
.btn-ghost{border-color:var(--line)}
.btn-ghost:hover{border-color:var(--ink)}
.btn-danger{background:var(--warn);color:#fff}
.btn-sm{padding:.4rem .8rem;font-size:.9rem}
.btn-block{width:100%}
.linkish{background:none;border:0;padding:0;color:var(--thread);font-weight:700;font-size:.85rem;cursor:pointer;text-decoration:underline;text-underline-offset:2px}
.linkish.danger{color:var(--warn)}
.input{width:100%;padding:.7rem .8rem;background:var(--surface);border:1px solid var(--line);border-radius:8px}
.input:focus{border-color:var(--thread);outline:none;box-shadow:0 0 0 3px var(--thread-soft)}
textarea.input{resize:vertical;min-height:5rem}
.field{margin:0 0 1.35rem;border:0;padding:0}
.field label,.field .lbl{display:block;font-weight:700;margin-bottom:.35rem;padding:0}
.hint{display:block;font-size:.85rem;color:var(--muted);margin:-.15rem 0 .45rem;font-weight:400}
.err{color:var(--warn);font-size:.875rem;margin-top:.35rem}
.actions{display:flex;gap:.75rem;flex-wrap:wrap}

.flash{padding:.75rem 1rem;border-radius:10px;margin:0 0 1.25rem;border:1px solid var(--line);background:var(--surface)}
.flash.error{border-color:var(--warn);background:var(--warn-soft)}
.flash.info{border-color:var(--thread);background:var(--thread-soft)}

/* avatars */
.avatar{width:56px;height:56px;border-radius:50%;display:inline-grid;place-items:center;font:700 1.05rem var(--display);color:#fff;flex:none;object-fit:cover;background:var(--muted)}
.avatar.sm{width:40px;height:40px;font-size:.85rem}
.avatar.xs{width:32px;height:32px;font-size:.75rem}
.c0{background:#2F6F9F}.c1{background:#B04A5A}.c2{background:#7A4FB0}.c3{background:#B5651D}
.c4{background:#3C7D3A}.c5{background:#9C5B8F}.c6{background:#3A6B78}.c7{background:#8A6A1F}
.cx{background:var(--line);color:var(--muted)}

/* sign-in & simple pages */
.signin{min-height:100vh;display:grid;place-items:center;padding:2rem 1.25rem}
.signin-inner{width:100%;max-width:30rem}
.signin .wordmark{margin-bottom:2.5rem}
.signin h1{font-size:clamp(2rem,6vw,3rem);letter-spacing:-.02em;margin-bottom:1rem}
.signin .lede{color:var(--muted);font-size:1.075rem;margin:0 0 2rem;max-width:36ch}
.invite-ctx{background:var(--surface);border:1px solid var(--line);border-left:4px solid var(--thread);border-radius:4px 12px 12px 4px;padding:1rem 1.1rem;margin-bottom:1.75rem}
.invite-ctx .who{display:flex;align-items:center;gap:.75rem;margin-bottom:.6rem}
.invite-ctx .sub{display:block;color:var(--muted);font-size:.9rem}
.invite-ctx .purpose{margin:0;font-size:.9rem;color:var(--thread);font-weight:700}
.invite-ctx .note{font-style:italic;color:var(--muted);margin:.35rem 0 0}
.no-invite{border:1px dashed var(--line);border-radius:12px;padding:1rem 1.1rem;color:var(--muted);margin-bottom:1.75rem}
.btn-li{display:flex;align-items:center;justify-content:center;gap:.7rem;width:100%;padding:.95rem 1rem;border-radius:10px;background:var(--li);color:#fff;font-weight:700;font-size:1.05rem;text-decoration:none}
.btn-li:hover{filter:brightness(1.08)}
.btn-li .in{display:grid;place-items:center;width:1.5rem;height:1.5rem;background:#fff;color:#0A66C2;border-radius:4px;font:700 .95rem/1 Arial,Helvetica,sans-serif}
.fine{font-size:.85rem;color:var(--muted);margin-top:1rem}

.prose{max-width:40rem;margin:0 auto;padding:3rem 1.25rem 4rem}
.prose h1{font-size:2.2rem;margin:2rem 0 1rem}
.prose h2{font-size:1.25rem;margin:2rem 0 .5rem}
.prose p{margin:0 0 1rem}

/* setup */
.setup{max-width:36rem;margin:0 auto;padding:3rem 1.25rem 4rem}
.setup h1{font-size:2rem;margin:1.5rem 0 .5rem}
.setup .lede{color:var(--muted);margin:0 0 2rem}
.from-li{display:flex;align-items:center;gap:.9rem;padding:1rem;background:var(--surface);border:1px solid var(--line);border-radius:12px;margin-bottom:1.75rem}
.from-li small{display:block;color:var(--muted)}
.chips{display:flex;flex-wrap:wrap;gap:.5rem}
.chip{position:relative;cursor:pointer;margin:0 !important;font-weight:400 !important}
.chip input{position:absolute;opacity:0;width:1px;height:1px}
.chip span{display:inline-block;border:1px solid var(--line);background:var(--surface);padding:.4rem .8rem;border-radius:999px}
.chip input:checked + span{background:var(--thread);border-color:var(--thread);color:#fff}
.chip input:focus-visible + span{outline:3px solid var(--thread);outline-offset:2px}
.toggle{display:flex !important;gap:.75rem;align-items:flex-start;cursor:pointer;font-weight:400 !important}
.toggle input{width:1.15rem;height:1.15rem;margin-top:.2rem;accent-color:var(--thread);flex:none}
.toggle strong{display:block}

/* app layout */
.topbar{display:flex;align-items:center;justify-content:space-between;gap:1rem;padding:1rem 1.25rem;max-width:72rem;margin:0 auto}
.me{display:flex;align-items:center;gap:.75rem}
.me form{margin:0}
.me-link{display:flex;align-items:center;gap:.5rem;color:var(--ink);text-decoration:none;font-weight:700;font-size:.9rem}
.app{max-width:72rem;margin:0 auto;padding:1rem 1.25rem 3rem;display:grid;grid-template-columns:minmax(0,1.25fr) minmax(0,1fr);gap:2.5rem;align-items:start}
@media (max-width:860px){.app{grid-template-columns:1fr;gap:2rem}}
.col-head h1{font-size:clamp(1.8rem,4vw,2.4rem);letter-spacing:-.015em}
.col-head p{color:var(--muted);margin:.4rem 0 1.75rem;max-width:44ch}

/* lineage thread */
.lineage{position:relative;list-style:none;margin:0;padding:0}
.lineage::before{content:"";position:absolute;left:27px;top:28px;bottom:28px;width:3px;background:var(--thread);border-radius:3px;transform-origin:top;animation:draw 1.1s cubic-bezier(.3,.7,.2,1) both}
.lineage.solo::before{display:none}
@keyframes draw{from{transform:scaleY(0)}to{transform:scaleY(1)}}
.above{display:flex;align-items:center;gap:1rem;color:var(--muted);font-size:.9rem;margin:0 0 .75rem;padding-left:.35rem}
.above .dots{display:grid;gap:4px;justify-items:center;width:46px}
.above .dots i{width:5px;height:5px;border-radius:50%;background:var(--thread);opacity:.45;display:block}
.node{position:relative;display:grid;grid-template-columns:56px minmax(0,1fr);gap:1rem;margin-bottom:1.1rem;align-items:start}
.node > .avatar{position:relative;z-index:1;box-shadow:0 0 0 4px var(--bg)}
.card{display:block;background:var(--surface);border:1px solid var(--line);border-radius:12px;padding:.85rem 1rem}
details.card > summary{list-style:none;cursor:pointer}
details.card > summary::-webkit-details-marker{display:none}
details.card:hover{border-color:var(--muted)}
details.card[open]{border-color:var(--thread)}
.card .rel{display:flex;flex-wrap:wrap;gap:.5rem;align-items:center;font-size:.85rem;color:var(--thread);font-weight:700}
.card .founder{font-weight:400;color:var(--muted);border:1px solid var(--line);border-radius:999px;padding:0 .5rem;font-size:.78rem}
.card .name{font-family:var(--display);font-size:1.2rem;font-weight:700;display:block;margin:.05rem 0}
.card .head{display:block;color:var(--muted);font-size:.95rem}
.card .quote{display:block;margin:.6rem 0 0;padding-left:.75rem;border-left:2px solid var(--line);font-style:italic;color:var(--muted);font-size:.92rem}
.card dl{display:grid;grid-template-columns:auto 1fr;gap:.25rem 1rem;margin:.8rem 0 .2rem;font-size:.9rem}
.card dt{color:var(--muted)}
.card dd{margin:0}
.tags{display:flex;flex-wrap:wrap;gap:.35rem;margin-top:.5rem}
.tags span{font-size:.8rem;background:var(--thread-soft);color:var(--ink);padding:.15rem .55rem;border-radius:999px}
.profile-link{display:inline-block;margin-top:.6rem;font-size:.9rem;font-weight:700}
.node.you > .avatar{box-shadow:0 0 0 4px var(--bg),0 0 0 7px var(--you)}
.node.you .card{border-color:var(--you);background:var(--you-soft)}
.node.you .card .rel{color:var(--ink)}
.node.you .tags span{background:var(--surface);border:1px solid var(--line)}
.branch{margin-top:.5rem;display:grid;grid-template-columns:56px 1fr;gap:1rem}
.branch .stub{display:flex;justify-content:center}
.branch .stub span{width:3px;min-height:52px;background:repeating-linear-gradient(var(--thread) 0 6px,transparent 6px 12px);border-radius:3px;opacity:.6}
.branch .box{padding:.6rem 0}
.branch .box p{margin:.15rem 0 0;color:var(--muted);font-size:.92rem}

/* invite panel */
.panel{background:var(--surface);border:1px solid var(--line);border-radius:16px;padding:1.4rem}
.panel h2{font-size:1.5rem}
.panel-sub{color:var(--muted);margin:.35rem 0 1.25rem}
.created{border:1px solid var(--thread);background:var(--thread-soft);border-radius:12px;padding:.9rem;margin-bottom:1.25rem}
.created strong{display:block;margin-bottom:.6rem}
.linkrow{display:flex;gap:.5rem}
.linkrow .input{font-size:.85rem;min-width:0}
.quota{font-size:.85rem;color:var(--muted);margin:.5rem 0 0}
.divider{height:1px;background:var(--line);margin:1.4rem 0}
.sent h3{font-size:1.1rem;margin-bottom:.6rem}
.sent ul{list-style:none;margin:0;padding:0}
.sent li{display:flex;align-items:flex-start;gap:.75rem;padding:.7rem 0;border-top:1px solid var(--line)}
.sent li:first-child{border-top:0}
.sent .meta{flex:1;min-width:0}
.sent .meta b{display:block;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.sent .meta small{color:var(--muted)}
.row-actions{display:flex;gap:1rem;margin-top:.3rem}
.row-actions form{margin:0}
.status{font-size:.78rem;font-weight:700;padding:.2rem .6rem;border-radius:999px;white-space:nowrap}
.status.accepted{background:var(--thread-soft);color:var(--thread)}
.status.pending{background:var(--bg);color:var(--muted);border:1px solid var(--line)}
.status.expired,.status.revoked{color:var(--muted);text-decoration:line-through}
.empty{color:var(--muted);font-size:.92rem;margin:0}

.account{max-width:72rem;margin:0 auto;padding:0 1.25rem 3rem;color:var(--muted);font-size:.9rem}
.account summary{cursor:pointer;width:max-content}
.delete-form{display:flex;flex-wrap:wrap;gap:.5rem;align-items:center;max-width:32rem}
.delete-form label{width:100%}
.delete-form .input{flex:1;min-width:10rem}

.toast{position:fixed;left:50%;bottom:calc(1.25rem + env(safe-area-inset-bottom,0px));transform:translate(-50%,1rem);opacity:0;background:var(--ink);color:var(--bg);padding:.7rem 1.1rem;border-radius:10px;font-weight:700;transition:.25s ease;pointer-events:none;z-index:10}
.toast.show{opacity:1;transform:translate(-50%,0)}

@media (prefers-reduced-motion: reduce){*,*::before,*::after{animation:none !important;transition:none !important}}

/* group link */
.group h3,.sub-h{font-size:1.1rem;margin:0 0 .5rem}
.share-row{display:flex;gap:.5rem;flex-wrap:wrap;margin:.75rem 0 0}
.group-actions{margin-top:.9rem}
.hint.lead-hint{margin:0 0 1rem}
.hint.flush{margin:0}
.quote.small{margin:.6rem 0 0;padding-left:.75rem;border-left:2px solid var(--line);font-style:italic;color:var(--muted);font-size:.9rem}
.group-new{margin-top:1rem}
.group-new summary{cursor:pointer;font-weight:700;color:var(--thread);font-size:.9rem;margin-bottom:.75rem}
.field-row{display:grid;grid-template-columns:1fr 1fr;gap:.75rem}
@media (max-width:420px){.field-row{grid-template-columns:1fr}}
.linkrow .btn{white-space:nowrap;flex:none}

/* join requests */
.requests h2{font-size:1.35rem}
.req-list{list-style:none;margin:0;padding:0}
.req{display:flex;gap:.75rem;padding:.9rem 0;border-top:1px solid var(--line)}
.req:first-child{border-top:0;padding-top:.25rem}
.req-body{flex:1;min-width:0;display:flex;flex-direction:column;gap:.15rem}
.req-body .sub{color:var(--muted);font-size:.92rem}
.req-body .muted{font-size:.85rem}
.req-body .quote{margin:.35rem 0;padding-left:.75rem;border-left:2px solid var(--line);font-style:italic;color:var(--muted);font-size:.92rem}
.req-body .profile-link{margin-top:.2rem;font-size:.9rem;font-weight:700}
.req-actions{display:flex;gap:.5rem;margin-top:.6rem}
.req-actions form{margin:0}
.h-md{font-size:clamp(1.7rem,5vw,2.3rem) !important}
.sent-card{display:flex;flex-direction:column;gap:.15rem;background:var(--surface);border:1px solid var(--line);border-radius:12px;padding:1rem;margin-bottom:1.25rem}
.sent-card .lbl{font-size:.85rem;color:var(--muted)}
.sent-card .sub{color:var(--muted)}
.sent-card .quote{margin-top:.4rem;font-style:italic;color:var(--muted)}
.withdraw{margin-top:1rem;text-align:center}
.actions form{margin:0}
.decline-all{margin:-.5rem 0 .75rem}


/* ===== Standard site header / footer (buddyLINX) ===== */
.site-header{background:var(--surface);border-bottom:1px solid var(--line)}
.site-header-inner{max-width:72rem;margin:0 auto;padding:.7rem 1.25rem;display:flex;align-items:center;justify-content:space-between;gap:1rem}
.site-brand{display:inline-flex;align-items:center;gap:.6rem;text-decoration:none;color:var(--ink)}
.site-logo{height:42px;width:auto;display:block}
.site-brand-name{font-family:var(--display);font-weight:700;font-size:1.15rem;color:var(--ink)}
.site-nav{display:flex;align-items:center;gap:.9rem}
.site-profile{display:inline-flex;align-items:center;gap:.55rem;text-decoration:none;color:var(--ink);font-weight:700;font-size:.9rem}
.site-avatar{width:36px;height:36px;border-radius:50%;object-fit:cover;flex:none;display:inline-grid;place-items:center;color:#fff;font-family:var(--display);font-weight:700;font-size:.8rem;background:var(--muted)}
.site-profile-name{max-width:12rem;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.site-signout-form{margin:0}
.site-btn{display:inline-flex;align-items:center;gap:.5rem;padding:.5rem 1rem;border-radius:10px;border:1px solid transparent;font-weight:700;font-size:.9rem;cursor:pointer;text-decoration:none;font-family:var(--body)}
.site-btn-ghost{background:transparent;border-color:var(--line);color:var(--ink)}
.site-btn-ghost:hover{border-color:var(--ink)}
.site-btn-linkedin{background:var(--li);color:#fff}
.site-btn-linkedin:hover{filter:brightness(1.08)}
.site-li-badge{display:inline-grid;place-items:center;width:1.2rem;height:1.2rem;background:#fff;color:var(--li);border-radius:3px;font:700 .75rem/1 Arial,Helvetica,sans-serif}
@media (max-width:560px){.site-profile-name,.site-brand-name{display:none}}
.site-footer{background:var(--surface);border-top:1px solid var(--line);color:var(--muted);margin-top:3rem}
.site-footer-inner{max-width:72rem;margin:0 auto;padding:1.5rem 1.25rem;display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:.75rem;font-size:.85rem}
.site-footer-links{display:flex;gap:1rem;flex-wrap:wrap}
.site-footer a{color:var(--muted);text-decoration:none}
.site-footer a:hover{color:var(--thread);text-decoration:underline}