/* ============================================================
   Evolink IA — Design System "Vercel premium dark"
   tokens + base + componentes. Autoral, sem frameworks.
   ============================================================ */

:root{
  --bg:#0a0a0a; --bg-2:#0e0e0e; --surface:#111112; --surface-2:#161617;
  --line:#222223; --line-2:#2a2a2c;
  --ink:#ededed; --ink-2:#a1a1a6; --dim:#6e6e73;
  --accent:#ffffff; --accent-ink:#0a0a0a;
  --green:#3ecf8e; --amber:#f5a623; --red:#e5484d; --blue:#5b9dff;
  --radius:10px; --radius-lg:14px;
  --font:'Inter',-apple-system,'Segoe UI',Roboto,sans-serif;
  --mono:'SF Mono',ui-monospace,'Cascadia Code',Menlo,monospace;
  --ease:cubic-bezier(.2,.8,.2,1);
}
*{box-sizing:border-box;margin:0;padding:0}
html{color-scheme:dark}
body{background:var(--bg);color:var(--ink);font:400 14px/1.55 var(--font);
  -webkit-font-smoothing:antialiased;min-height:100vh}
a{color:inherit;text-decoration:none}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer}
img,svg{display:block}
:focus-visible{outline:2px solid rgba(255,255,255,.5);outline-offset:2px;border-radius:4px}
::selection{background:rgba(255,255,255,.18)}
::placeholder{color:var(--dim)}

/* ---- scrollbar ---- */
*::-webkit-scrollbar{width:8px;height:8px}
*::-webkit-scrollbar-thumb{background:#2c2c2e;border-radius:4px}
*::-webkit-scrollbar-track{background:transparent}

/* ---- app shell ---- */
.shell{display:grid;grid-template-columns:236px 1fr;min-height:100vh}
.side{position:sticky;top:0;height:100vh;display:flex;flex-direction:column;
  border-right:1px solid var(--line);background:var(--bg-2);padding:14px 12px;gap:4px}
.side__brand{display:flex;align-items:center;gap:9px;padding:8px 10px 16px;font-weight:600;font-size:14px;letter-spacing:-.01em}
.side__brand .logo{width:24px;height:24px;border-radius:7px;background:linear-gradient(135deg,#fff,#c9c9cf);display:grid;place-items:center;color:#0a0a0a;font-weight:700;font-size:13px}
.side__sec{font-size:10.5px;text-transform:uppercase;letter-spacing:.08em;color:var(--dim);padding:12px 10px 4px}
.side a{display:flex;align-items:center;gap:9px;padding:7px 10px;border-radius:8px;color:var(--ink-2);font-size:13.5px;transition:background .12s var(--ease),color .12s var(--ease)}
.side a svg{width:15px;height:15px;flex:none}
.side a:hover{background:var(--surface-2);color:var(--ink)}
.side a.on{background:var(--surface-2);color:var(--ink);font-weight:500}
.side__foot{margin-top:auto;border-top:1px solid var(--line);padding-top:10px}
.side__user{display:flex;align-items:center;gap:9px;padding:8px 10px;border-radius:8px}
.side__user .av{width:26px;height:26px;border-radius:50%;background:var(--surface-2);border:1px solid var(--line-2);display:grid;place-items:center;font-size:11px;font-weight:600;color:var(--ink-2)}
.side__user small{display:block;color:var(--dim);font-size:11px}

.main{padding:26px 32px 60px;max-width:1120px;width:100%;margin:0 auto}
.topbar{display:flex;align-items:center;gap:12px;margin-bottom:22px}
.topbar h1{font-size:19px;font-weight:600;letter-spacing:-.02em}
.topbar .sub{color:var(--dim);font-size:13px;margin-left:auto}

/* ---- cards ---- */
.card{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-lg);
  padding:18px 20px;transition:border-color .15s var(--ease)}
.card:hover{border-color:var(--line-2)}
.card__t{font-size:12px;color:var(--ink-2);text-transform:uppercase;letter-spacing:.06em;margin-bottom:8px;display:flex;align-items:center;gap:8px}
.card__v{font-size:26px;font-weight:600;letter-spacing:-.02em;font-variant-numeric:tabular-nums}
.card__m{font-size:12px;color:var(--dim);margin-top:4px}
.grid{display:grid;gap:14px}
.grid-4{grid-template-columns:repeat(4,1fr)}
.grid-3{grid-template-columns:repeat(3,1fr)}
.grid-2{grid-template-columns:repeat(2,1fr)}
@media(max-width:960px){.grid-4{grid-template-columns:repeat(2,1fr)}.grid-3{grid-template-columns:1fr 1fr}}
@media(max-width:640px){.grid-4,.grid-3,.grid-2{grid-template-columns:1fr}}

/* ---- botões ---- */
.btn{display:inline-flex;align-items:center;gap:7px;padding:7px 14px;border-radius:8px;
  font-size:13px;font-weight:500;border:1px solid var(--line-2);color:var(--ink);
  transition:background .12s var(--ease),border-color .12s var(--ease),transform .12s var(--ease)}
.btn:hover{background:var(--surface-2)}
.btn:active{transform:scale(.98)}
.btn--primary{background:var(--accent);color:var(--accent-ink);border-color:var(--accent);font-weight:600}
.btn--primary:hover{background:#d9d9de;border-color:#d9d9de}
.btn--danger{color:var(--red);border-color:rgba(229,72,77,.35)}
.btn--danger:hover{background:rgba(229,72,77,.08)}
.btn--sm{padding:4px 10px;font-size:12px;border-radius:7px}
.btn svg{width:14px;height:14px}
.btn:disabled{opacity:.45;cursor:default;transform:none}

/* ---- inputs ---- */
.in{width:100%;background:var(--bg-2);border:1px solid var(--line-2);border-radius:8px;
  color:var(--ink);padding:8px 12px;font-size:13.5px;outline:none;
  transition:border-color .15s var(--ease),box-shadow .15s var(--ease)}
.in:focus{border-color:#52525b;box-shadow:0 0 0 3px rgba(255,255,255,.06)}
label{display:block;font-size:12.5px;color:var(--ink-2);margin:0 0 5px}
.field{margin-bottom:14px}

/* ---- tabela ---- */
.tbl{width:100%;border-collapse:collapse;font-size:13px}
.tbl th{text-align:left;font-size:11px;text-transform:uppercase;letter-spacing:.06em;
  color:var(--dim);font-weight:500;padding:8px 12px;border-bottom:1px solid var(--line);
  position:sticky;top:0;background:var(--surface);z-index:1}
.tbl td{padding:9px 12px;border-bottom:1px solid var(--line);font-variant-numeric:tabular-nums}
.tbl tr:hover td{background:rgba(255,255,255,.02)}
.tbl .mono, .mono{font-family:var(--mono);font-size:12px}

/* ---- badges ---- */
.badge{display:inline-flex;align-items:center;gap:5px;padding:2px 9px;border-radius:999px;
  font-size:11px;font-weight:500;border:1px solid var(--line-2);color:var(--ink-2)}
.badge--ok{color:var(--green);border-color:rgba(62,207,142,.3);background:rgba(62,207,142,.07)}
.badge--warn{color:var(--amber);border-color:rgba(245,166,35,.3);background:rgba(245,166,35,.07)}
.badge--err{color:var(--red);border-color:rgba(229,72,77,.3);background:rgba(229,72,77,.07)}
.badge .dot{width:6px;height:6px;border-radius:50%;background:currentColor}

/* ---- alertas ---- */
.alert{padding:10px 14px;border-radius:8px;font-size:13px;margin-bottom:16px;border:1px solid}
.alert--ok{border-color:rgba(62,207,142,.3);background:rgba(62,207,142,.06);color:var(--green)}
.alert--err{border-color:rgba(229,72,77,.3);background:rgba(229,72,77,.06);color:var(--red)}

/* ---- code block ---- */
.code{font-family:var(--mono);font-size:12.5px;background:var(--bg-2);border:1px solid var(--line);
  border-radius:8px;padding:12px 14px;overflow-x:auto;white-space:nowrap;color:#d4d4d8}
.code .k{color:var(--green)}

/* ---- sparkline/gráfico ---- */
.chart{width:100%;height:auto}
.chart .bar{fill:#3f3f46;transition:fill .15s var(--ease)}
.chart .bar:hover{fill:var(--green)}
.chart .lbl{fill:var(--dim);font-size:9px;font-family:var(--font)}

/* ---- chat ---- */
.chat{display:flex;flex-direction:column;gap:14px;min-height:40vh}
.chat__msg{max-width:76%;padding:10px 14px;border-radius:12px;font-size:13.5px;line-height:1.55;white-space:pre-wrap;word-break:break-word}
.chat__msg--u{align-self:flex-end;background:var(--accent);color:var(--accent-ink);border-bottom-right-radius:4px;font-weight:500}
.chat__msg--a{align-self:flex-start;background:var(--surface);border:1px solid var(--line);border-bottom-left-radius:4px}
.chat__msg .meta{display:block;margin-top:6px;font-size:10.5px;color:var(--dim)}
.cursor{display:inline-block;width:7px;height:15px;background:var(--ink);animation:blink 1s steps(1) infinite;vertical-align:text-bottom;margin-left:2px}
@keyframes blink{50%{opacity:0}}
.chat__form{display:flex;gap:10px;padding-top:14px;border-top:1px solid var(--line)}
.chat__form input{flex:1}

/* ---- auth / landing ---- */
.auth-wrap{min-height:100vh;display:grid;place-items:center;padding:24px;
  background:radial-gradient(ellipse 80% 50% at 50% -20%,rgba(255,255,255,.06),transparent)}
.auth-card{width:100%;max-width:380px;background:var(--surface);border:1px solid var(--line);
  border-radius:var(--radius-lg);padding:28px}
.auth-card h1{font-size:20px;font-weight:600;letter-spacing:-.02em;margin:18px 0 4px;text-align:center}
.auth-card .sub{text-align:center;color:var(--dim);font-size:13px;margin-bottom:22px}
.auth-logo{display:flex;justify-content:center}
.auth-logo .logo{width:40px;height:40px;border-radius:11px;background:linear-gradient(135deg,#fff,#c9c9cf);display:grid;place-items:center;color:#0a0a0a;font-weight:700;font-size:19px}
.auth-alt{text-align:center;font-size:13px;color:var(--dim);margin-top:18px}
.auth-alt a{color:var(--ink);font-weight:500}
.auth-alt a:hover{text-decoration:underline}

.hero{min-height:92vh;display:grid;place-items:center;text-align:center;padding:80px 24px 40px;position:relative;
  background-image:radial-gradient(circle at 1px 1px,rgba(255,255,255,.05) 1px,transparent 1.5px);background-size:28px 28px}
.hero h1{font-size:clamp(38px,6vw,68px);font-weight:600;letter-spacing:-.035em;line-height:1.05}
.hero h1 em{font-style:normal;color:var(--dim)}
.hero p{max-width:560px;margin:20px auto 0;color:var(--ink-2);font-size:16px}
.hero__cta{display:flex;gap:12px;justify-content:center;margin-top:30px}
.btn--lg{padding:10px 22px;font-size:14px;border-radius:10px}
.badge-hero{display:inline-flex;align-items:center;gap:8px;border:1px solid var(--line-2);border-radius:999px;
  padding:5px 14px;font-size:12px;color:var(--ink-2);margin-bottom:26px;background:rgba(255,255,255,.02)}
.feat{border-top:1px solid var(--line)}
.feat__grid{display:grid;grid-template-columns:repeat(3,1fr);gap:14px;max-width:1120px;margin:0 auto;padding:60px 24px}
@media(max-width:900px){.feat__grid{grid-template-columns:1fr}}
.feat .card svg{width:18px;height:18px;color:var(--ink);margin-bottom:12px}
.feat .card b{display:block;font-weight:600;margin-bottom:5px}
.feat .card p{font-size:13px;color:var(--dim)}

/* ---- misc ---- */
.pager{display:flex;gap:6px;justify-content:flex-end;margin-top:14px;flex-wrap:wrap}
.pager a,.pager span{padding:4px 11px;border-radius:7px;border:1px solid var(--line-2);font-size:12px;color:var(--ink-2)}
.pager .on{background:var(--accent);color:var(--accent-ink);border-color:var(--accent);font-weight:600}
.empty{padding:44px 20px;text-align:center;color:var(--dim);font-size:13px}
.row-actions{display:flex;gap:6px;justify-content:flex-end}
.hint{font-size:11.5px;color:var(--dim);margin-top:5px}
.skel{height:14px;border-radius:6px;background:linear-gradient(90deg,var(--surface-2),#1d1d20,var(--surface-2));background-size:200% 100%;animation:shimmer 1.4s infinite}
@keyframes shimmer{to{background-position:-200% 0}}

@media (prefers-reduced-motion: reduce){
  *,*::before,*::after{animation:none!important;transition:none!important}
}
@media(max-width:860px){
  .shell{grid-template-columns:1fr}
  .side{position:fixed;z-index:50;width:236px;transform:translateX(-100%);transition:transform .2s var(--ease)}
  .side.open{transform:none;box-shadow:0 0 60px rgba(0,0,0,.6)}
  .main{padding:18px 16px 40px}
  .topbar__menu{display:inline-flex!important}
}
.topbar__menu{display:none;padding:6px;border:1px solid var(--line-2);border-radius:8px}