/* ============================================================
   SEDRA UI — canonical design system (single source of truth)
   Load on any surface:  <link rel="stylesheet" href="https://sedracoin.com/assets/sedra-ui.css">
   Committed dark theme. All component classes are prefixed .sd- to avoid clashing with page CSS.
   ============================================================ */

:root{
  /* ---- surfaces ---- */
  --sd-bg:#080c12; --sd-bg2:#0b131c; --sd-panel:#0d141d; --sd-panel2:#111b26; --sd-elev:#132030;
  --sd-line:rgba(130,160,190,.12); --sd-line2:rgba(130,170,200,.22);
  /* ---- text ---- */
  --sd-text:#eef2f7; --sd-muted:#9aabbd; --sd-faint:#6b7d90;
  /* ---- brand / accent ---- */
  --sd-teal:#34d6c6; --sd-teal2:#28bcae; --sd-blue:#5fa5ff; --sd-violet:#a15cf5; --sd-magenta:#e033ff;
  /* ---- semantic ---- */
  --sd-ok:#34d6c6; --sd-warn:#f5b73c; --sd-bad:#ff8585;
  /* ---- gradients: 2-stop for UI accents, brand rainbow for logo/hero only ---- */
  --sd-grad:linear-gradient(100deg,#34d6c6,#5fa5ff);
  --sd-brand:linear-gradient(110deg,#e033ff,#a15cf5,#5fa5ff,#34d6c6);
  /* ---- type ---- */
  --sd-sans:"Inter",system-ui,-apple-system,"Segoe UI",Roboto,Helvetica,Arial,sans-serif;
  --sd-serif:Georgia,"Times New Roman",serif;
  --sd-mono:"Cascadia Code",ui-monospace,"SF Mono",Consolas,Menlo,monospace;
  /* ---- scale ---- */
  --sd-r:14px; --sd-r-sm:10px; --sd-r-pill:999px;
  --sd-shadow:0 1px 0 rgba(255,255,255,.02),0 16px 40px -24px rgba(0,0,0,.7);
  --sd-maxw:1080px; --sd-readw:640px;
}

/* ---------- primitives ---------- */
.sd-container{max-width:var(--sd-maxw);margin:0 auto;padding:0 clamp(16px,4vw,28px)}
.sd-read{max-width:var(--sd-readw)}
.sd-grad{background:var(--sd-grad);-webkit-background-clip:text;background-clip:text;color:transparent}
.sd-brandtext{background:var(--sd-brand);-webkit-background-clip:text;background-clip:text;color:transparent}
.sd-tabnum{font-variant-numeric:tabular-nums}
.sd-mono{font-family:var(--sd-mono)}

/* ---------- type ---------- */
.sd-title{font-size:clamp(1.5rem,4vw,2rem);font-weight:750;letter-spacing:-.02em;margin:0 0 6px;text-wrap:balance}
.sd-sub{color:var(--sd-muted);font-size:14px;line-height:1.6;margin:0}
.sd-k{color:var(--sd-faint);font-size:10.5px;text-transform:uppercase;letter-spacing:1.4px;font-weight:700}
.sd-muted{color:var(--sd-muted)}.sd-faint{color:var(--sd-faint);font-size:12px}

/* ---------- buttons ---------- */
.sd-btn{display:inline-flex;align-items:center;gap:8px;background:var(--sd-teal);border:1px solid transparent;color:#04140f;
  padding:10px 18px;border-radius:var(--sd-r-sm);font:650 13px/1 var(--sd-sans);cursor:pointer;text-decoration:none;
  transition:background .15s,border-color .15s,transform .05s}
.sd-btn:hover{background:var(--sd-teal2);text-decoration:none}
.sd-btn:active{transform:translateY(1px)}
.sd-btn[disabled],.sd-btn.is-disabled{opacity:.45;cursor:default;transform:none}
.sd-btn--ghost{background:transparent;border-color:var(--sd-line2);color:var(--sd-text)}
.sd-btn--ghost:hover{background:rgba(52,214,198,.06);border-color:var(--sd-teal)}
.sd-btn--grad{background:var(--sd-grad);color:#04121a}
.sd-btn--lg{padding:13px 22px;font-size:14px;border-radius:12px}

/* ---------- cards ---------- */
.sd-card{background:var(--sd-panel);border:1px solid var(--sd-line);border-radius:var(--sd-r);padding:20px;box-shadow:var(--sd-shadow)}
.sd-card--feat{background:linear-gradient(155deg,var(--sd-panel2),var(--sd-panel));border-color:var(--sd-line2)}

/* ---------- chips / pills ---------- */
.sd-chip{display:inline-flex;align-items:center;gap:7px;font-size:11.5px;color:var(--sd-muted);
  border:1px solid var(--sd-line);background:rgba(255,255,255,.015);border-radius:var(--sd-r-pill);padding:5px 11px;white-space:nowrap;text-decoration:none}
.sd-chip b{color:var(--sd-text);font-weight:600}
.sd-chip:hover{border-color:var(--sd-line2);text-decoration:none}
.sd-pill{display:inline-flex;align-items:center;gap:6px;font-size:11px;font-weight:700;letter-spacing:.08em;text-transform:uppercase;
  border:1px solid;border-radius:var(--sd-r-pill);padding:3px 10px}
.sd-pill--ok{color:var(--sd-ok);border-color:rgba(52,214,198,.4);background:rgba(52,214,198,.08)}
.sd-pill--warn{color:var(--sd-warn);border-color:rgba(245,183,60,.4);background:rgba(245,183,60,.07)}
.sd-pill--bad{color:var(--sd-bad);border-color:rgba(255,133,133,.4);background:rgba(255,133,133,.07)}
.sd-dot{width:7px;height:7px;border-radius:50%;display:inline-block;background:var(--sd-faint)}
.sd-dot--on{background:var(--sd-teal);box-shadow:0 0 8px var(--sd-teal)}
.sd-dot--off{background:var(--sd-bad)}

/* ---------- inputs ---------- */
.sd-label{font-size:12px;color:var(--sd-muted);display:block;margin-top:15px;font-weight:500}
.sd-input{width:100%;background:var(--sd-bg2);border:1px solid var(--sd-line2);border-radius:var(--sd-r-sm);color:var(--sd-text);
  padding:11px 13px;font-size:14px;margin-top:6px;font-family:var(--sd-mono)}
.sd-input::placeholder{color:var(--sd-faint)}
.sd-input:focus{outline:0;border-color:var(--sd-teal)}

/* ---------- notices ---------- */
.sd-note{border:1px solid rgba(95,165,255,.22);background:rgba(95,165,255,.06);color:var(--sd-muted);border-radius:var(--sd-r-sm);padding:12px 14px;font-size:13px;line-height:1.55}
.sd-warn{border:1px solid rgba(245,183,60,.3);background:rgba(245,183,60,.08);color:#f4d79a;border-radius:var(--sd-r-sm);padding:11px 13px;font-size:12.5px;line-height:1.5}

/* ---------- shared shell: top nav + footer (rendered by sedra-shell.js) ---------- */
.sd-nav{position:sticky;top:0;z-index:50;background:rgba(9,13,19,.72);backdrop-filter:blur(12px);border-bottom:1px solid var(--sd-line)}
.sd-nav__in{display:flex;align-items:center;gap:18px;max-width:var(--sd-maxw);margin:0 auto;padding:12px clamp(16px,4vw,28px)}
.sd-nav__brand{display:flex;align-items:center;gap:9px;font-weight:700;letter-spacing:.3px;color:var(--sd-text);text-decoration:none;font-size:15px}
.sd-nav__brand img{width:24px;height:24px}
.sd-nav__brand b{background:var(--sd-brand);-webkit-background-clip:text;background-clip:text;color:transparent}
.sd-nav__links{display:flex;gap:2px;margin-left:auto;flex-wrap:wrap}
.sd-nav__links a{color:var(--sd-muted);font-size:13px;font-weight:500;text-decoration:none;padding:7px 11px;border-radius:8px;transition:color .15s,background .15s}
.sd-nav__links a:hover{color:var(--sd-text);background:rgba(255,255,255,.04);text-decoration:none}
.sd-nav__links a.is-active{color:var(--sd-text);background:rgba(52,214,198,.1)}
.sd-nav__chips{display:flex;gap:6px;align-items:center;margin-left:14px}
.sd-nav__burger{display:none;margin-left:auto;width:38px;height:38px;border:1px solid var(--sd-line2);background:transparent;color:var(--sd-text);border-radius:9px;cursor:pointer;font-size:18px;line-height:1}
@media(max-width:760px){.sd-nav__chips{display:none}}
@media(max-width:760px){
  .sd-nav__links{position:fixed;inset:56px 0 auto 0;flex-direction:column;background:var(--sd-panel);border-bottom:1px solid var(--sd-line2);padding:8px clamp(16px,4vw,28px) 14px;margin:0;display:none}
  .sd-nav__links.is-open{display:flex}
  .sd-nav__links a{padding:11px 8px;font-size:14px}
  .sd-nav__burger{display:inline-flex;align-items:center;justify-content:center}
}
.sd-footer{border-top:1px solid var(--sd-line);margin-top:48px}
.sd-footer__in{max-width:var(--sd-maxw);margin:0 auto;padding:26px clamp(16px,4vw,28px) 40px;
  display:flex;flex-wrap:wrap;gap:10px 20px;align-items:center;color:var(--sd-faint);font-size:12px}
.sd-footer__in .sp{flex:1}
.sd-footer a{color:var(--sd-muted);text-decoration:none}.sd-footer a:hover{color:var(--sd-text)}
.sd-footer__note{width:100%;color:var(--sd-faint);font-size:11.5px;line-height:1.5;margin-top:4px}