/* =========================================================================
   Founders12 Platform — Experience tier styling.
   Brand: ink · panel · off-white · teak (matches the landing page).
   Complexity behind the interface (Principle 2, IA-05).
   ========================================================================= */

:root{
  --ink:#0d0d0f; --panel:#141417; --panel-2:#1a1a1e; --panel-3:#202025;
  --white:#f4f3ef; --grey:#8d8d93; --grey-2:#5e5e64;
  --line:rgba(244,243,239,.13); --line-strong:rgba(244,243,239,.28);
  --teak:#c79a68; --teak-soft:#e0c19c; --teak-deep:#9a6f43;
  --up:#9dc98a; --down:#c97f7f;
  --ease:cubic-bezier(.22,.61,.36,1);
  --serif:Georgia,"Times New Roman",serif;
}
*{box-sizing:border-box;margin:0;padding:0}
html,body{height:100%}
body{
  background:var(--ink);color:var(--white);
  font-family:"Inter","Segoe UI",system-ui,-apple-system,Helvetica,Arial,sans-serif;
  font-size:15px;line-height:1.55;-webkit-font-smoothing:antialiased;
}
body::before{
  content:"";position:fixed;inset:0;z-index:0;pointer-events:none;
  background-image:linear-gradient(var(--line) 1px,transparent 1px),
                   linear-gradient(90deg,var(--line) 1px,transparent 1px);
  background-size:64px 64px;opacity:.22;
  -webkit-mask-image:radial-gradient(circle at 30% 20%,#000 0%,transparent 75%);
  mask-image:radial-gradient(circle at 30% 20%,#000 0%,transparent 75%);
}
::selection{background:var(--teak);color:var(--ink)}
a{color:inherit}
button{font:inherit;cursor:pointer}
input,textarea,select{font:inherit;color:var(--white)}
h1,h2,h3{letter-spacing:-.01em;font-weight:700}
.serif{font-family:var(--serif)}
.em{color:var(--teak);font-family:var(--serif);font-style:italic;font-weight:400}
.muted{color:var(--grey)}
.small{font-size:12.5px}
.eyebrow{font-size:11px;letter-spacing:.32em;text-transform:uppercase;color:var(--teak)}

/* ---------- layout: sidebar + main + atlas dock ---------- */
.app{position:relative;z-index:1;display:flex;min-height:100vh}
.sidebar{
  width:228px;flex:0 0 228px;border-right:1px solid var(--line);
  padding:26px 18px;display:flex;flex-direction:column;gap:4px;
  position:sticky;top:0;height:100vh;overflow-y:auto;background:rgba(13,13,15,.6);backdrop-filter:blur(8px);
}
.brand{display:flex;align-items:center;gap:10px;font-weight:700;letter-spacing:.16em;font-size:12.5px;margin-bottom:26px}
.brand .mark{width:22px;height:22px;border:1.5px solid var(--teak);border-radius:50%;position:relative;flex:0 0 22px}
.brand .mark::after{content:"";position:absolute;inset:5px;border-radius:50%;background:var(--teak);opacity:.85}
.nav-item{
  display:flex;align-items:center;gap:11px;padding:10px 12px;border-radius:10px;
  color:var(--grey);border:1px solid transparent;background:none;text-align:left;width:100%;
  transition:.25s var(--ease);font-size:13.5px;letter-spacing:.03em;
}
.nav-item:hover{color:var(--white);background:var(--panel)}
.nav-item.active{color:var(--white);background:var(--panel-2);border-color:var(--line)}
.nav-item .dot{width:6px;height:6px;border-radius:50%;background:var(--grey-2);flex:0 0 6px;transition:.25s}
.nav-item.active .dot{background:var(--teak)}
.nav-sep{height:1px;background:var(--line);margin:14px 4px}
.nav-note{margin-top:auto;padding:12px;border:1px solid var(--line);border-radius:10px;font-size:11.5px;color:var(--grey)}
.nav-note b{color:var(--teak-soft)}

.main{flex:1;min-width:0;padding:34px clamp(20px,4vw,54px) 90px}
.page{max-width:1060px;margin:0 auto}
.page-head{margin-bottom:26px}
.page-head h1{font-size:clamp(1.5rem,3vw,2.1rem)}
.page-head .sub{color:var(--grey);margin-top:6px;max-width:64ch}

/* ---------- cards & grids ---------- */
.card{border:1px solid var(--line);border-radius:16px;background:linear-gradient(180deg,var(--panel),rgba(20,20,23,.5));padding:20px 22px;position:relative}
.card + .card{margin-top:14px}
.grid{display:grid;gap:14px}
.grid.cols-2{grid-template-columns:repeat(auto-fill,minmax(320px,1fr))}
.grid.cols-4{grid-template-columns:repeat(auto-fill,minmax(230px,1fr))}
.card h3{font-size:15px;margin-bottom:6px}
.card .domain-name{display:flex;align-items:center;gap:9px;font-weight:600;font-size:14px}
.swatch{width:9px;height:9px;border-radius:50%;flex:0 0 9px}

/* domain card */
.dcard{cursor:pointer;transition:.25s var(--ease)}
.dcard:hover{border-color:var(--line-strong);transform:translateY(-2px)}
.dval{font-size:34px;font-weight:800;letter-spacing:-.02em;line-height:1;margin:12px 0 2px}
.dval .of{font-size:13px;color:var(--grey-2);font-weight:500}
.dval.na{font-size:15px;color:var(--grey);font-weight:500;font-style:italic;font-family:var(--serif)}
.bar{height:5px;border-radius:4px;background:var(--panel-3);overflow:hidden;margin:10px 0 8px}
.bar i{display:block;height:100%;border-radius:4px;transition:width .8s var(--ease)}
.meta-row{display:flex;justify-content:space-between;align-items:center;font-size:11.5px;color:var(--grey)}
.trend-up{color:var(--up)} .trend-down{color:var(--down)} .trend-steady{color:var(--grey)}
.conf-chip{border:1px solid var(--line);border-radius:20px;padding:2px 9px;font-size:10.5px;letter-spacing:.06em}

/* ---------- buttons ---------- */
.btn{display:inline-flex;align-items:center;gap:8px;border:1px solid var(--line-strong);color:var(--white);
  padding:9px 18px;border-radius:30px;font-size:13px;letter-spacing:.03em;transition:.3s var(--ease);background:transparent}
.btn:hover{border-color:var(--teak);color:var(--teak);transform:translateY(-1px)}
.btn-solid{background:var(--teak);color:var(--ink);border-color:var(--teak);font-weight:600}
.btn-solid:hover{background:var(--teak-soft);border-color:var(--teak-soft);color:var(--ink)}
.btn-sm{padding:6px 13px;font-size:12px}
.btn-ghost{border-color:transparent;color:var(--grey)}
.btn-ghost:hover{color:var(--teak);border-color:transparent;transform:none}
.btn-danger:hover{border-color:var(--down);color:var(--down)}
.btn-row{display:flex;gap:10px;flex-wrap:wrap;margin-top:14px}

/* ---------- forms ---------- */
label.f{display:block;font-size:12px;letter-spacing:.08em;text-transform:uppercase;color:var(--grey);margin:16px 0 6px}
input.f,textarea.f,select.f{
  width:100%;background:var(--panel-2);border:1px solid var(--line);border-radius:10px;
  padding:11px 13px;outline:none;transition:border .25s;
}
input.f:focus,textarea.f:focus,select.f:focus{border-color:var(--teak-deep)}
textarea.f{min-height:90px;resize:vertical}
.range-row{display:flex;align-items:center;gap:14px}
input[type=range]{flex:1;accent-color:var(--teak)}
select.f option{background:var(--panel-2)}

/* ---------- reasoning chain (CON-04) ---------- */
.chain{margin-top:12px;border:1px solid var(--line);border-radius:12px;overflow:hidden}
.chain-head{display:flex;align-items:center;justify-content:space-between;gap:10px;padding:10px 14px;background:var(--panel-2);
  font-size:12px;color:var(--teak-soft);cursor:pointer;letter-spacing:.05em;border:none;width:100%;text-align:left}
.chain-head:hover{color:var(--teak)}
.chain-body{display:none;padding:6px 14px 14px;background:rgba(20,20,23,.6)}
.chain.open .chain-body{display:block}
.chain-step{display:flex;gap:12px;padding:8px 0;border-bottom:1px dashed var(--line);font-size:12.5px}
.chain-step:last-child{border-bottom:none}
.chain-step .lvl{flex:0 0 168px;color:var(--teak);font-size:10.5px;letter-spacing:.14em;text-transform:uppercase;padding-top:2px}
.chain-step .txt{color:var(--grey);flex:1}
.chain-step:last-child .txt{color:var(--white)}

/* ---------- atlas dock & page ---------- */
.atlas-fab{position:fixed;right:26px;bottom:26px;z-index:600;display:flex;align-items:center;gap:10px;
  background:var(--teak);color:var(--ink);border:none;border-radius:40px;padding:13px 20px;font-weight:700;font-size:13px;
  letter-spacing:.05em;box-shadow:0 10px 34px rgba(199,154,104,.35);transition:.3s var(--ease)}
.atlas-fab:hover{transform:translateY(-2px);background:var(--teak-soft)}
.atlas-fab .pulse{width:8px;height:8px;border-radius:50%;background:var(--ink);animation:pul 2.4s infinite}
@keyframes pul{0%,100%{opacity:1}50%{opacity:.3}}

.chat{display:flex;flex-direction:column;gap:14px;max-width:820px}
.msg{max-width:88%;padding:14px 18px;border-radius:16px;font-size:14px}
.msg.atlas{background:var(--panel);border:1px solid var(--line);border-top-left-radius:4px;align-self:flex-start}
.msg.founder{background:var(--panel-3);border:1px solid var(--line);border-top-right-radius:4px;align-self:flex-end;color:var(--teak-soft)}
.msg .conf{margin-top:10px;font-size:10.5px;letter-spacing:.1em;text-transform:uppercase;color:var(--grey-2)}
.msg .conf b{color:var(--teak-soft)}
.chat-input{display:flex;gap:10px;margin-top:20px;max-width:820px}
.chat-input input{flex:1}
.quick-row{display:flex;gap:8px;flex-wrap:wrap;margin-top:12px}

/* ---------- loop visual (FR-M5-02: a cycle, never a line) ---------- */
.loop-wrap{display:flex;gap:30px;align-items:center;flex-wrap:wrap}
.loop-svg{flex:0 0 min(380px,80vw)}
.loop-el{cursor:pointer}
.loop-el circle{transition:.3s}
.loop-el text{fill:var(--grey);font-size:10.5px;letter-spacing:.04em}
.loop-el.current circle.node{stroke:var(--teak);stroke-width:2}
.loop-el.current text{fill:var(--white)}
.loop-side{flex:1;min-width:260px}

/* ---------- timeline ---------- */
.tl{border-left:1px solid var(--line);margin-left:8px;padding-left:22px;position:relative}
.tl-item{position:relative;padding-bottom:18px}
.tl-item::before{content:"";position:absolute;left:-26.5px;top:5px;width:8px;height:8px;border-radius:50%;background:var(--teak-deep)}
.tl-item .when{font-size:11px;color:var(--grey-2);letter-spacing:.06em}
.tl-item .what{font-size:13.5px;margin-top:2px}
.tl-item .src{font-size:11px;color:var(--teak-soft);letter-spacing:.05em}

/* ---------- tables ---------- */
table.t{width:100%;border-collapse:collapse;font-size:13px}
table.t th{color:var(--grey);text-align:left;font-weight:500;font-size:11px;letter-spacing:.1em;text-transform:uppercase;padding:8px 10px;border-bottom:1px solid var(--line)}
table.t td{padding:10px;border-bottom:1px solid var(--line);vertical-align:top}
.pill{display:inline-block;border:1px solid var(--line);border-radius:20px;padding:2px 10px;font-size:11px;color:var(--grey)}
.pill.ok{color:var(--up);border-color:rgba(157,201,138,.4)}
.pill.warn{color:var(--teak-soft);border-color:rgba(224,193,156,.4)}
.pill.off{color:var(--down);border-color:rgba(201,127,127,.4)}

/* ---------- onboarding ---------- */
.ob-shell{max-width:640px;margin:6vh auto;position:relative;z-index:2}
.ob-steps{display:flex;gap:6px;margin-bottom:26px}
.ob-steps i{height:3px;flex:1;background:var(--panel-3);border-radius:3px}
.ob-steps i.on{background:var(--teak)}
.ob-title{font-size:clamp(1.4rem,3.4vw,2rem);line-height:1.15;margin-bottom:10px}
.ob-lead{color:var(--grey);max-width:56ch}

/* ---------- misc ---------- */
.notice{border:1px solid rgba(224,193,156,.35);background:rgba(199,154,104,.07);border-radius:12px;padding:13px 16px;font-size:13px;color:var(--teak-soft)}
.divider{height:1px;background:var(--line);margin:22px 0}
.kv{display:flex;gap:8px;font-size:12.5px;margin:3px 0}
.kv b{color:var(--grey);font-weight:500;flex:0 0 150px}
.role-banner{position:sticky;top:0;z-index:500;background:var(--teak);color:var(--ink);text-align:center;
  padding:8px 14px;font-size:12.5px;font-weight:600;letter-spacing:.04em}
.role-banner button{margin-left:12px;border:1px solid var(--ink);background:transparent;color:var(--ink);border-radius:20px;padding:2px 12px;font-size:11.5px;font-weight:600}
.empty{border:1px dashed var(--line-strong);border-radius:14px;padding:26px;text-align:center;color:var(--grey);font-size:13.5px}
.empty .em{display:block;margin-bottom:6px;font-size:15px}

/* ---------- manuscript reader ---------- */
.mdread{font-size:15px;line-height:1.75;color:var(--white)}
.mdread .mdh2{font-size:clamp(1.4rem,3vw,1.9rem);margin:6px 0 18px;letter-spacing:-.01em}
.mdread .mdh3{font-size:1.1rem;margin:30px 0 10px;color:var(--teak-soft)}
.mdread .mdh4{font-size:.95rem;margin:22px 0 8px;color:var(--grey)}
.mdread .mdp{margin:0 0 14px;color:rgba(244,243,239,.88)}
.mdread .mdlist{margin:0 0 14px 20px;color:rgba(244,243,239,.82)}
.mdread .mdlist li{margin:4px 0}
.mdread .mdquote{border-left:2px solid var(--teak);padding:6px 0 6px 16px;margin:0 0 14px;color:var(--teak-soft);font-family:var(--serif);font-style:italic}
.mdread .mdpre{background:var(--panel-2);border:1px solid var(--line);border-radius:10px;padding:14px 16px;margin:0 0 14px;overflow-x:auto;font-size:12px;line-height:1.5;color:var(--grey)}
.mdread table.t{margin:0 0 14px}
.mdread code{background:var(--panel-3);border-radius:4px;padding:1px 5px;font-size:.85em}

@media(max-width:840px){
  .app{flex-direction:column}
  .sidebar{width:100%;height:auto;position:static;flex-direction:row;flex-wrap:wrap;gap:2px;padding:14px}
  .brand{width:100%;margin-bottom:10px}
  .nav-item{width:auto;padding:8px 12px}
  .nav-note{display:none}
  .chain-step .lvl{flex:0 0 110px}
}