/* SovereignShift AI · shared styles for the public site (home, sign up) */
:root{
  --ground:#EEF1EF;
  --surface:#FAFBFA;
  --surface-2:#F1F4F2;
  --surface-3:#E4E9E7;
  --ink:#0F1A1C;
  --ink-2:#44535A;
  --ink-3:#63727A;
  --line:#D8E0DD;
  --line-2:#BEC9C6;
  --accent:#0D6A5B;
  --accent-hover:#0A574B;
  --accent-ink:#FFFFFF;
  --accent-soft:#DCEEE9;
  --accent-text:#0B5E51;
  --deep:#0C1A1B;
  --deep-2:#132426;
  --deep-ink:#E6EEEC;
  --deep-ink-2:#9FB3B0;
  --deep-line:#23393B;
  --signal:#46BFA4;
  --good:#0ca30c; --warn:#fab219; --crit:#d03b3b;
  --good-soft:#E2F2DF; --warn-soft:#FCF0D3; --crit-soft:#F7E0DF;
  --crit-text:#A52626;
  --seq-1:#cde2fb; --seq-2:#9ec5f4; --seq-3:#6da7ec; --seq-4:#3987e5; --seq-5:#256abf; --seq-6:#184f95; --seq-7:#0d366b;
  --code-bg:#F1F4F2;
  --tk-k:#0B5E51; --tk-s:#9A4A12; --tk-c:#6A787E;
  --scrim:rgba(15,26,28,.32);
  --shadow-pop:0 18px 40px -18px rgba(15,26,28,.35), 0 2px 6px rgba(15,26,28,.08);
  --font-display:"Archivo","Arial Narrow",system-ui,sans-serif;
  --font-body:"IBM Plex Sans",system-ui,-apple-system,"Segoe UI",sans-serif;
  --font-mono:"IBM Plex Mono",ui-monospace,"Cascadia Mono",Consolas,monospace;
  --wrap:1200px;
}
@media (prefers-color-scheme: dark){
  :root:not([data-theme="light"]){
    color-scheme:dark;
    --ground:#0A0F11; --surface:#11181B; --surface-2:#172024; --surface-3:#1E292E;
    --ink:#E4EBEB; --ink-2:#A7B3B6; --ink-3:#86949A;
    --line:#223035; --line-2:#33444A;
    --accent:#46BFA4; --accent-hover:#5ACDB3; --accent-ink:#04201A; --accent-soft:#12352E; --accent-text:#5FD0B5;
    --deep:#060B0C; --deep-2:#0E1719; --deep-ink:#E6EEEC; --deep-ink-2:#93A7A4; --deep-line:#1C2D2F;
    --good-soft:#132B17; --warn-soft:#33290F; --crit-soft:#381919; --crit-text:#F07F7F;
    --seq-1:#0f3563; --seq-2:#184f95; --seq-3:#256abf; --seq-4:#3987e5; --seq-5:#6da7ec; --seq-6:#9ec5f4; --seq-7:#cde2fb;
    --code-bg:#0D1417; --tk-k:#5FD0B5; --tk-s:#E0A36E; --tk-c:#7F8D91;
    --scrim:rgba(0,0,0,.55);
    --shadow-pop:0 18px 40px -18px rgba(0,0,0,.7), 0 2px 6px rgba(0,0,0,.3);
  }
}
:root[data-theme="dark"]{
  color-scheme:dark;
  --ground:#0A0F11; --surface:#11181B; --surface-2:#172024; --surface-3:#1E292E;
  --ink:#E4EBEB; --ink-2:#A7B3B6; --ink-3:#86949A;
  --line:#223035; --line-2:#33444A;
  --accent:#46BFA4; --accent-hover:#5ACDB3; --accent-ink:#04201A; --accent-soft:#12352E; --accent-text:#5FD0B5;
  --deep:#060B0C; --deep-2:#0E1719; --deep-ink:#E6EEEC; --deep-ink-2:#93A7A4; --deep-line:#1C2D2F;
  --good-soft:#132B17; --warn-soft:#33290F; --crit-soft:#381919; --crit-text:#F07F7F;
  --seq-1:#0f3563; --seq-2:#184f95; --seq-3:#256abf; --seq-4:#3987e5; --seq-5:#6da7ec; --seq-6:#9ec5f4; --seq-7:#cde2fb;
  --code-bg:#0D1417; --tk-k:#5FD0B5; --tk-s:#E0A36E; --tk-c:#7F8D91;
  --scrim:rgba(0,0,0,.55);
  --shadow-pop:0 18px 40px -18px rgba(0,0,0,.7), 0 2px 6px rgba(0,0,0,.3);
}

*,*::before,*::after{box-sizing:border-box}
[hidden]{display:none !important}
html{scroll-behavior:smooth}
html,body{margin:0}
body{background:var(--ground);color:var(--ink);font-family:var(--font-body);font-size:16px;line-height:1.6;-webkit-font-smoothing:antialiased}
h1,h2,h3,h4{font-family:var(--font-display);margin:0;text-wrap:balance;color:inherit}
p{margin:0}
a{color:var(--accent-text)}
img,svg{max-width:100%}
button,input,select,textarea{font:inherit;color:inherit}
:focus-visible{outline:2px solid var(--accent);outline-offset:2px}
.wrap{max-width:var(--wrap);margin:0 auto;padding-inline:24px}
.mono{font-family:var(--font-mono)}
.eyebrow{font-family:var(--font-display);font-stretch:100%;font-size:12px;letter-spacing:.1em;text-transform:uppercase;font-weight:600;color:var(--accent-text)}
.muted{color:var(--ink-3)}
kbd{font-family:var(--font-mono);font-size:11px;padding:1px 6px;border-radius:4px;border:1px solid var(--line-2);background:var(--surface);color:var(--ink-2);white-space:nowrap}

/* Buttons */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;min-height:44px;padding:0 20px;border-radius:8px;border:1px solid var(--line-2);background:var(--surface);color:var(--ink);font-weight:500;font-size:15px;cursor:pointer;text-decoration:none;white-space:nowrap}
.btn:hover{background:var(--surface-2)}
.btn-primary{background:var(--accent);border-color:var(--accent);color:var(--accent-ink)}
.btn-primary:hover{background:var(--accent-hover);border-color:var(--accent-hover)}
.btn-sm{min-height:36px;padding:0 14px;font-size:14px}
.btn-block{width:100%}
.btn svg{width:18px;height:18px;flex:none}
.btn:disabled{opacity:.55;cursor:default}

/* Header */
.site-head{position:sticky;top:env(safe-area-inset-top,0px);z-index:40;background:color-mix(in srgb,var(--ground) 88%,transparent);backdrop-filter:saturate(1.4) blur(10px);-webkit-backdrop-filter:saturate(1.4) blur(10px);border-bottom:1px solid var(--line)}
.site-head .wrap{display:flex;align-items:center;gap:28px;height:64px}
.brand{display:flex;align-items:center;gap:10px;text-decoration:none;color:var(--ink);flex:none}
.brand svg{width:26px;height:26px}
.brand span{font-family:var(--font-display);font-stretch:118%;font-weight:680;font-size:18px;letter-spacing:-.01em}
.site-nav{display:flex;gap:4px;align-items:center}
.site-nav a{padding:8px 12px;border-radius:6px;color:var(--ink-2);text-decoration:none;font-size:14.5px;font-weight:500;white-space:nowrap}
.site-nav a:hover{color:var(--ink);background:var(--surface-2)}
.head-right{margin-left:auto;display:flex;align-items:center;gap:8px}
.search-btn{display:inline-flex;align-items:center;gap:10px;height:36px;padding:0 8px 0 12px;border-radius:7px;border:1px solid var(--line);background:var(--surface);color:var(--ink-3);cursor:pointer;font-size:14px;min-width:210px}
.search-btn svg{width:16px;height:16px}
.search-btn span{flex:1;text-align:left}
.menu-btn{display:none;width:40px;height:40px;border-radius:8px;border:1px solid var(--line);background:var(--surface);align-items:center;justify-content:center;cursor:pointer}
.menu-btn svg{width:20px;height:20px}
.mobile-nav{display:none}

/* Footer */
.site-foot{border-top:1px solid var(--line);padding-block:48px 40px;font-size:14px;color:var(--ink-3)}
.foot-grid{display:grid;grid-template-columns:1.4fr repeat(3,1fr);gap:32px}
.foot-grid h4{font-size:12px;letter-spacing:.1em;text-transform:uppercase;color:var(--ink-2);margin-bottom:12px;font-weight:600}
.foot-grid ul{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:8px}
.foot-grid a{color:var(--ink-2);text-decoration:none}
.foot-grid a:hover{color:var(--ink);text-decoration:underline}
.foot-base{display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;margin-top:40px;padding-top:20px;border-top:1px solid var(--line);font-size:13px}

/* Forms */
.field{display:flex;flex-direction:column;gap:6px}
.field label,.field .lab{font-size:14px;font-weight:500;color:var(--ink)}
.field .hint{font-size:13px;color:var(--ink-3)}
.input,select.input,textarea.input{width:100%;min-height:44px;padding:10px 12px;border-radius:8px;border:1px solid var(--line-2);background:var(--surface);color:var(--ink);font-size:15px}
textarea.input{min-height:96px;resize:vertical;line-height:1.5}
.input:focus{outline:2px solid var(--accent);outline-offset:0;border-color:var(--accent)}
.input[aria-invalid="true"]{border-color:var(--crit)}
.err{font-size:13px;color:var(--crit-text);display:flex;gap:6px;align-items:flex-start}
.affix{display:flex;align-items:stretch;border:1px solid var(--line-2);border-radius:8px;background:var(--surface);overflow:hidden}
.affix span{display:flex;align-items:center;padding:0 10px;background:var(--surface-2);color:var(--ink-3);font-size:14px;border-right:1px solid var(--line-2);white-space:nowrap}
.affix .input{border:0;border-radius:0;min-width:0}
.affix:focus-within{outline:2px solid var(--accent);border-color:var(--accent)}
.affix .input:focus{outline:none}
.chipset{display:flex;flex-wrap:wrap;gap:8px}
.chip{position:relative;cursor:pointer}
.chip input{position:absolute;opacity:0;pointer-events:none}
.chip span{display:inline-flex;align-items:center;gap:6px;min-height:36px;padding:0 12px;border-radius:999px;border:1px solid var(--line-2);background:var(--surface);font-size:14px;color:var(--ink-2)}
.chip span::before{content:"";width:14px;height:14px;border-radius:4px;border:1.5px solid var(--line-2);flex:none}
.chip input:checked + span{border-color:var(--accent);background:var(--accent-soft);color:var(--ink)}
.chip input:checked + span::before{background:var(--accent);border-color:var(--accent);box-shadow:inset 0 0 0 2px var(--surface)}
.chip input:focus-visible + span{outline:2px solid var(--accent);outline-offset:2px}
.check{display:flex;gap:10px;align-items:flex-start;font-size:14px;color:var(--ink-2);cursor:pointer}
.check input{width:18px;height:18px;margin:2px 0 0;accent-color:var(--accent);flex:none}

/* Search palette (site) */
.pal-scrim{position:fixed;inset:0;background:var(--scrim);z-index:70}
.palette{position:fixed;left:50%;top:max(10vh,calc(env(safe-area-inset-top,0px) + 16px));transform:translateX(-50%);width:min(620px,calc(100% - 32px));z-index:75;background:var(--surface);border:1px solid var(--line-2);border-radius:12px;box-shadow:var(--shadow-pop);display:flex;flex-direction:column;overflow:hidden;max-height:min(560px,80vh)}
.pal-input{display:flex;align-items:center;gap:10px;padding:0 14px;border-bottom:1px solid var(--line)}
.pal-input svg{width:18px;height:18px;color:var(--ink-3);flex:none}
.pal-input input{flex:1;min-width:0;height:54px;border:0;background:transparent;font-size:16px;outline:none}
.pal-list{overflow-y:auto;padding:6px}
.pal-group{font-family:var(--font-display);font-size:11px;letter-spacing:.08em;text-transform:uppercase;color:var(--ink-3);font-weight:600;padding:10px 10px 4px}
.pal-item{display:block;padding:9px 10px;border-radius:6px;cursor:pointer;text-decoration:none;color:var(--ink)}
.pal-item b{display:block;font-weight:500;font-size:15px}
.pal-item small{display:block;font-size:13px;color:var(--ink-3)}
.pal-item[aria-selected="true"]{background:var(--accent-soft)}
.pal-item mark{background:transparent;color:var(--accent-text);font-weight:650}
.pal-empty{padding:24px;text-align:center;color:var(--ink-3);font-size:14px}

@media (max-width:1180px){
  .site-head .wrap{gap:16px}
  .site-nav a{padding:8px 9px}
  .search-btn{min-width:0;padding:0 10px}
  .search-btn span,.search-btn kbd{display:none}
}
@media (max-width:980px){
  .site-nav,.search-btn .st-label,.head-right .hide-sm{display:none}
  .search-btn{min-width:0;padding:0 10px}
  .search-btn span,.search-btn kbd{display:none}
  .menu-btn{display:inline-flex}
  .mobile-nav:not([hidden]){display:flex;flex-direction:column;padding:8px 24px 16px;border-top:1px solid var(--line);background:var(--ground)}
  .mobile-nav a{padding:12px 0;border-bottom:1px solid var(--line);color:var(--ink);text-decoration:none;font-weight:500}
  .foot-grid{grid-template-columns:1fr 1fr}
}
@media (max-width:560px){
  .wrap{padding-inline:16px}
  .foot-grid{grid-template-columns:1fr}
}
@media (prefers-reduced-motion: reduce){
  html{scroll-behavior:auto}
  *{animation-duration:0s !important;animation-iteration-count:1 !important;transition:none !important}
}