/* =====================================================================
   Root Technologies — shared styles for login / register / research /
   coming-soon / 404.

   One stylesheet, three themes. The landing page a visitor arrives from
   stores its theme, and these pages read it, so the whole site stays
   visually consistent with whichever design you keep.

   Theme is set on <html data-theme="dark|bright|enterprise">.
   ===================================================================== */

@import url('https://fonts.googleapis.com/css2?family=Bricolage+Grotesque:opsz,wght@12..96,500;12..96,600;12..96,700&family=Fraunces:opsz,wght@9..144,400;9..144,600&family=IBM+Plex+Mono:wght@400;500;600&family=IBM+Plex+Sans:wght@300;400;500;600&family=Inter:wght@300;400;500;600;700&family=Plus+Jakarta+Sans:wght@300;400;500;600;700&family=Space+Grotesk:wght@500;600;700&display=swap');

/* ---------------- THEME: dark (V1 — warm organic) ---------------- */
:root,
[data-theme="dark"]{
  --bg:#0A0F0B;
  --surface:#0F1510;
  --surface-2:#161E17;
  --line:rgba(255,255,255,.09);
  --line-2:rgba(255,255,255,.16);
  --txt:#ECF1EA;
  --txt-2:#A2B0A0;
  --txt-3:#6E7C6D;
  --accent:#8CC63F;
  --accent-2:#E0A52E;
  --accent-txt:#0D1A05;
  --accent-soft:rgba(140,198,63,.1);
  --accent-line:rgba(140,198,63,.32);
  --ok:#5FA82A;
  --ok-soft:rgba(95,168,42,.14);
  --danger:#E0A52E;
  --radius:18px;
  --radius-sm:11px;
  --btn-radius:99px;
  --font-body:'Inter',system-ui,-apple-system,sans-serif;
  --font-display:'Fraunces',Georgia,serif;
  --display-weight:600;
  --display-transform:none;
  --display-spacing:-.03em;
  --label-font:var(--font-body);
  --label-transform:none;
  --label-spacing:.01em;
  --shadow:0 30px 70px -30px rgba(0,0,0,.85);
  --btn-grad:linear-gradient(105deg,var(--accent),var(--accent-2));
}

/* ---------------- THEME: bright (V2 — clean human) ---------------- */
[data-theme="bright"]{
  --bg:#FAF8F1;
  --surface:#FFFFFF;
  --surface-2:#F1EFE6;
  --line:#E4E2DA;
  --line-2:#CFCDC2;
  --txt:#2E353C;
  --txt-2:#5A626B;
  --txt-3:#8D949B;
  --accent:#4E7A15;
  --accent-2:#8CC63F;
  --accent-txt:#FFFFFF;
  --accent-soft:#EDF4DC;
  --accent-line:#CADFA0;
  --ok:#35621B;
  --ok-soft:#E4EFD8;
  --danger:#B23B22;
  --radius:22px;
  --radius-sm:12px;
  --btn-radius:99px;
  --font-body:'Plus Jakarta Sans',system-ui,sans-serif;
  --font-display:'Bricolage Grotesque',system-ui,sans-serif;
  --display-weight:600;
  --display-transform:none;
  --display-spacing:-.032em;
  --label-font:var(--font-body);
  --label-transform:none;
  --label-spacing:0;
  --shadow:0 30px 70px -25px rgba(28,26,23,.28);
  --btn-grad:var(--accent);
}

/* ---------------- THEME: enterprise (V3 — bold) ---------------- */
[data-theme="enterprise"]{
  --bg:#080B0A;
  --surface:#0D1310;
  --surface-2:#141C17;
  --line:rgba(255,255,255,.11);
  --line-2:rgba(255,255,255,.2);
  --txt:#EBF0EC;
  --txt-2:#95A79A;
  --txt-3:#5F7166;
  --accent:#57901E;
  --accent-2:#8CC63F;
  --accent-txt:#FFFFFF;
  --accent-soft:rgba(87,144,30,.14);
  --accent-line:rgba(87,144,30,.45);
  --ok:#C6E870;
  --ok-soft:rgba(198,232,112,.13);
  --danger:#FF5C5C;
  --radius:2px;
  --radius-sm:2px;
  --btn-radius:2px;
  --font-body:'IBM Plex Sans',system-ui,sans-serif;
  --font-display:'Space Grotesk',system-ui,sans-serif;
  --display-weight:700;
  --display-transform:uppercase;
  --display-spacing:-.035em;
  --label-font:'IBM Plex Mono',monospace;
  --label-transform:uppercase;
  --label-spacing:.1em;
  --shadow:0 30px 80px -30px rgba(0,0,0,.9);
  --btn-grad:var(--accent);
}

/* ---------------- BASE ---------------- */
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{
  background:var(--bg);color:var(--txt);font-family:var(--font-body);
  font-size:16px;line-height:1.65;-webkit-font-smoothing:antialiased;
  min-height:100vh;display:flex;flex-direction:column;
}
a{color:inherit;text-decoration:none}
img,svg{max-width:100%}
.wrap{width:100%;max-width:1160px;margin:0 auto;padding:0 28px}

h1,h2,h3{
  font-family:var(--font-display);font-weight:var(--display-weight);
  letter-spacing:var(--display-spacing);text-transform:var(--display-transform);
  line-height:1.1;
}

/* ---------------- HEADER ---------------- */
.site-head{border-bottom:1px solid var(--line);background:var(--bg);position:sticky;top:0;z-index:40}
.site-head .inner{display:flex;align-items:center;justify-content:space-between;height:74px;gap:16px}
.brand{display:flex;align-items:center;gap:11px;font-family:var(--font-display);
  font-weight:var(--display-weight);font-size:17px;letter-spacing:-.02em;text-transform:var(--display-transform)}
.brand .mark{width:32px;height:32px;flex:0 0 32px}
.brand .light{color:var(--txt-3);font-weight:400}
.head-actions{display:flex;align-items:center;gap:10px}
.head-actions a.txtlink{font-size:14px;color:var(--txt-2);transition:color .25s}
.head-actions a.txtlink:hover{color:var(--txt)}

/* ---------------- BUTTONS ---------------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:9px;
  font-family:var(--label-font);font-size:14px;font-weight:600;
  letter-spacing:var(--label-spacing);text-transform:var(--label-transform);
  padding:12px 22px;border-radius:var(--btn-radius);border:1px solid transparent;
  cursor:pointer;transition:transform .3s cubic-bezier(.22,1,.36,1),background .3s,border-color .3s,color .3s,opacity .3s;
  white-space:nowrap;text-align:center;
}
.btn-primary{background:var(--btn-grad);color:var(--accent-txt)}
.btn-primary:hover{transform:translateY(-2px);filter:brightness(1.06)}
.btn-ghost{border-color:var(--line-2);color:var(--txt);background:transparent}
.btn-ghost:hover{border-color:var(--txt-3);transform:translateY(-2px)}
.btn-lg{padding:15px 28px;font-size:15px}
.btn-block{width:100%}
.btn:disabled{opacity:.55;cursor:not-allowed;transform:none}

/* ---------------- LAYOUT ---------------- */
main{flex:1 0 auto;width:100%}
.center-page{display:grid;place-items:center;padding:60px 24px 80px}
.panel{
  width:100%;max-width:470px;background:var(--surface);
  border:1px solid var(--line);border-radius:var(--radius);
  padding:40px 36px 34px;box-shadow:var(--shadow);position:relative;
}
.panel-wide{max-width:640px}
[data-theme="enterprise"] .panel::before{
  content:'';position:absolute;top:0;left:0;right:0;height:3px;
  background:linear-gradient(90deg,var(--accent),var(--accent-2));
}
.eyebrow{
  display:block;font-family:var(--label-font);font-size:11px;
  letter-spacing:.14em;text-transform:uppercase;color:var(--accent);
  font-weight:600;margin-bottom:12px;
}
.panel h1{font-size:27px;margin-bottom:8px}
.panel .sub{color:var(--txt-2);font-size:14.5px;margin-bottom:26px}

/* ---------------- FORMS ---------------- */
.field{margin-bottom:14px}
.field label{
  display:block;font-family:var(--label-font);font-size:12px;font-weight:600;
  letter-spacing:var(--label-spacing);text-transform:var(--label-transform);
  color:var(--txt-2);margin-bottom:7px;
}
.field input,.field select{
  width:100%;background:var(--bg);border:1px solid var(--line);
  border-radius:var(--radius-sm);padding:12px 14px;color:var(--txt);
  font-family:var(--font-body);font-size:14.5px;transition:border-color .3s,box-shadow .3s,background .3s;
}
[data-theme="bright"] .field input,[data-theme="bright"] .field select{background:var(--bg)}
.field input::placeholder{color:var(--txt-3)}
.field input:focus,.field select:focus{
  outline:0;border-color:var(--accent);box-shadow:0 0 0 3px var(--accent-soft);
}
.field select{appearance:none;cursor:pointer;padding-right:38px;
  background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8' viewBox='0 0 12 8'%3E%3Cpath d='M1 1l5 5 5-5' stroke='%23888' stroke-width='1.6' fill='none' stroke-linecap='round'/%3E%3C/svg%3E");
  background-repeat:no-repeat;background-position:right 14px center}
.field-err{color:var(--danger);font-size:12px;margin-top:6px;display:none}
.field.bad input,.field.bad select{border-color:var(--danger)}
.field.bad .field-err{display:block}
.two{display:grid;grid-template-columns:1fr 1fr;gap:12px}
.hint{font-size:12px;color:var(--txt-3);margin-top:6px}
.consent{display:flex;gap:10px;align-items:flex-start;margin:18px 0 20px;font-size:12.5px;color:var(--txt-3);line-height:1.55}
.consent input{margin-top:2px;accent-color:var(--accent);width:15px;height:15px;flex:0 0 15px}
.alt{text-align:center;font-size:13.5px;color:var(--txt-2);margin-top:20px}
.alt a{color:var(--accent);font-weight:600}
.alt a:hover{text-decoration:underline}
.fineprint{text-align:center;font-size:11.5px;color:var(--txt-3);margin-top:14px}

/* form-level message */
.notice{
  border-radius:var(--radius-sm);padding:12px 14px;font-size:13.5px;
  margin-bottom:18px;display:none;line-height:1.55;border:1px solid transparent;
}
.notice.show{display:block}
.notice.error{background:rgba(255,92,92,.09);border-color:rgba(255,92,92,.32);color:var(--danger)}
.notice.ok{background:var(--ok-soft);border-color:var(--ok);color:var(--ok)}
.notice.info{background:var(--accent-soft);border-color:var(--accent-line);color:var(--txt-2)}

/* setup banner shown when config.js has not been filled in */
.setup-banner{
  background:var(--accent-soft);border-bottom:1px solid var(--accent-line);
  padding:11px 0;font-size:13px;color:var(--txt-2);display:none;text-align:center;
}
.setup-banner.show{display:block}
.setup-banner code{font-family:'IBM Plex Mono',monospace;color:var(--accent);font-size:12.5px}

/* ---------------- RESEARCH PAGE ---------------- */
.res-head{padding:56px 0 34px;border-bottom:1px solid var(--line)}
.res-head h1{font-size:clamp(30px,4.6vw,46px);margin-bottom:14px}
.res-head p{color:var(--txt-2);font-size:17px;max-width:640px;font-weight:300}
.res-meta{display:flex;justify-content:space-between;align-items:flex-end;gap:20px;flex-wrap:wrap;margin-top:26px}
.badge{
  display:inline-flex;align-items:center;gap:8px;font-family:var(--label-font);
  font-size:12px;font-weight:600;letter-spacing:var(--label-spacing);
  text-transform:var(--label-transform);color:var(--ok);
  background:var(--ok-soft);border:1px solid var(--ok);padding:7px 14px;border-radius:var(--btn-radius);
}
[data-theme="enterprise"] .badge{color:#060B18;background:var(--ok);border-color:var(--ok)}
.res-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;padding:40px 0 90px}
.res-card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);
  padding:26px 24px;display:flex;flex-direction:column;
  transition:transform .4s cubic-bezier(.22,1,.36,1),border-color .4s;
}
.res-card:hover{transform:translateY(-4px);border-color:var(--line-2)}
.res-card .tag{
  font-family:var(--label-font);font-size:10.5px;letter-spacing:.12em;
  text-transform:uppercase;color:var(--accent);font-weight:600;margin-bottom:12px;display:block;
}
.res-card h3{font-size:17px;margin-bottom:9px;line-height:1.32;text-transform:none;letter-spacing:-.02em}
.res-card p{font-size:14px;color:var(--txt-2);line-height:1.6;flex:1}
.res-card .foot{
  margin-top:18px;padding-top:14px;border-top:1px solid var(--line);
  display:flex;justify-content:space-between;align-items:center;gap:12px;
  font-family:var(--label-font);font-size:11px;letter-spacing:var(--label-spacing);
  text-transform:var(--label-transform);color:var(--txt-3);
}
.res-card .foot a{color:var(--accent);font-weight:600}
.res-card .foot a:hover{text-decoration:underline}
.empty-state{padding:70px 0 100px;text-align:center;color:var(--txt-2)}
.skeleton{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);height:210px;
  animation:pulse 1.5s ease-in-out infinite}
@keyframes pulse{0%,100%{opacity:.5}50%{opacity:.85}}

/* ---------------- COMING SOON / 404 ---------------- */
.stage{text-align:center;max-width:560px}
.stage .glyph{
  width:78px;height:78px;margin:0 auto 26px;border-radius:var(--radius);
  display:grid;place-items:center;background:var(--accent-soft);
  border:1px solid var(--accent-line);color:var(--accent);
}
.stage h1{font-size:clamp(28px,4.6vw,40px);margin-bottom:14px}
.stage .code{
  font-family:'IBM Plex Mono',monospace;font-size:12px;letter-spacing:.18em;
  text-transform:uppercase;color:var(--txt-3);margin-bottom:16px;display:block;
}
.stage p{color:var(--txt-2);font-size:16.5px;line-height:1.7;margin-bottom:30px}
.stage .actions{display:flex;gap:12px;justify-content:center;flex-wrap:wrap;margin-bottom:38px}
.notify{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);
  padding:26px 24px;text-align:left;
}
.notify h3{font-size:17px;margin-bottom:7px;text-transform:none;letter-spacing:-.02em}
.notify p{font-size:14px;color:var(--txt-2);margin-bottom:16px}
.notify form{display:flex;gap:10px;flex-wrap:wrap}
.notify input{flex:1 1 200px;background:var(--bg);border:1px solid var(--line);
  border-radius:var(--radius-sm);padding:12px 14px;color:var(--txt);font-family:var(--font-body);font-size:14.5px}
.notify input:focus{outline:0;border-color:var(--accent);box-shadow:0 0 0 3px var(--accent-soft)}
.other-links{margin-top:40px;padding-top:28px;border-top:1px solid var(--line)}
.other-links h4{
  font-family:var(--label-font);font-size:11px;letter-spacing:.14em;text-transform:uppercase;
  color:var(--txt-3);margin-bottom:16px;font-weight:600;
}
.link-row{display:flex;gap:10px;flex-wrap:wrap;justify-content:center}
.link-row a{
  font-size:13.5px;color:var(--txt-2);border:1px solid var(--line);
  padding:8px 15px;border-radius:var(--btn-radius);transition:all .25s;
}
.link-row a:hover{color:var(--txt);border-color:var(--line-2)}

/* ---------------- FOOTER ---------------- */
.site-foot{
  border-top:1px solid var(--line);padding:30px 0;margin-top:auto;
  display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:13px;color:var(--txt-3);
}
.site-foot a:hover{color:var(--txt-2)}
.site-foot nav{display:flex;gap:18px;flex-wrap:wrap}

/* ---------------- SPINNER ---------------- */
.spin{
  width:15px;height:15px;border:2px solid currentColor;border-right-color:transparent;
  border-radius:50%;animation:spin .7s linear infinite;display:inline-block;
}
@keyframes spin{to{transform:rotate(360deg)}}

/* ---------------- MOBILE ---------------- */
@media(max-width:900px){ .res-grid{grid-template-columns:1fr 1fr} }
@media(max-width:640px){
  .wrap{padding:0 20px}
  .panel{padding:30px 22px 26px;border-radius:var(--radius)}
  .two{grid-template-columns:1fr}
  .res-grid{grid-template-columns:1fr}
  .site-head .inner{height:66px}
  .head-actions a.txtlink{display:none}
}
@media(prefers-reduced-motion:reduce){*{animation:none!important;transition-duration:.01ms!important}}