/* ============================================================
   Preguntador — shared design system (violet premium SaaS)
   Used by every page. Layout: left sidebar + main content.
   ============================================================ */
:root{
  --bg:#0b0710; --bg2:#120b1d; --panel:#160f24; --panel2:#1d1430;
  --glass:rgba(29,20,48,.6);
  --line:#271b3e; --line2:#372a52;
  --violet:#d13914; --violet-d:#b32f10; --violet-ink:#0a0616; --magenta:#ff6a3d;
  --fg:#efeafc; --fg2:#8b82a3; --fg3:#b7adce;
  --good:#3ddc97; --good-bg:#0c2a1e;
  --warn:#ffb020; --warn-bg:#2e2206;
  --bad:#ff4d6d; --bad-bg:#2e0b16;
  --info:#58b5ff; --info-bg:#0a2033;
  --font-display:'Sora',system-ui,sans-serif;
  --font-ui:'Plus Jakarta Sans',system-ui,-apple-system,Segoe UI,Roboto,sans-serif;
  --font-mono:ui-monospace,'SF Mono',Menlo,Consolas,monospace;
  --radius:16px;
  color-scheme:dark;
}
*{box-sizing:border-box}
[hidden]{display:none!important}
html,body{height:100%}
body{margin:0;color:var(--fg);font-family:var(--font-ui);font-size:14px;line-height:1.55;
  background:
    radial-gradient(1100px 620px at 8% -12%, rgba(209,57,20,.16), transparent 58%),
    radial-gradient(900px 560px at 112% 4%, rgba(255,106,61,.10), transparent 55%),
    var(--bg)}
a{color:var(--violet);text-decoration:none}
a:hover{text-decoration:underline}
h1,h2,h3{font-family:var(--font-display);font-weight:700;letter-spacing:-.01em;margin:0}
::selection{background:rgba(209,57,20,.35)}
::-webkit-scrollbar{width:11px;height:11px}
::-webkit-scrollbar-thumb{background:var(--line2);border-radius:8px;border:3px solid transparent;background-clip:content-box}

/* ── buttons ── */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;cursor:pointer;
  font-family:var(--font-ui);font-size:13px;font-weight:600;white-space:nowrap;
  background:var(--panel2);color:var(--fg3);border:1px solid var(--line2);border-radius:11px;
  padding:9px 15px;transition:all .14s;text-decoration:none}
.btn:hover{background:#241839;color:var(--fg);border-color:var(--violet);text-decoration:none}
.btn:disabled{opacity:.45;cursor:not-allowed}
.btn svg{flex:none}
.btn-primary{background:linear-gradient(180deg,var(--violet),var(--violet-d));color:#fff;border-color:transparent;
  box-shadow:0 10px 26px -12px rgba(209,57,20,.75)}
.btn-primary:hover{filter:brightness(1.08);color:#fff}
.btn-danger{background:transparent;color:var(--bad);border-color:rgba(255,77,109,.45)}
.btn-danger:hover{background:var(--bad-bg);color:var(--bad);border-color:var(--bad)}
.btn-ghost{background:transparent}
.btn-sm{padding:6px 11px;font-size:12px;border-radius:9px}
.btn:focus-visible,input:focus-visible,select:focus-visible{outline:2px solid var(--violet);outline-offset:2px}

/* ── inputs ── */
.input,select.input{width:100%;background:var(--bg);border:1px solid var(--line2);border-radius:11px;
  color:var(--fg);font-family:var(--font-ui);font-size:14px;padding:11px 13px;outline:none;transition:border-color .14s,box-shadow .14s}
.input::placeholder{color:#5a5175}
.input:focus{border-color:var(--violet);box-shadow:0 0 0 3px rgba(209,57,20,.18)}
.field{display:block;margin-bottom:15px}
.field > .lbl{display:block;font-size:12px;font-weight:600;color:var(--fg3);margin-bottom:6px}
.field-row{display:flex;align-items:baseline;justify-content:space-between;margin-bottom:6px}

/* ── cards ── */
.card{background:var(--glass);backdrop-filter:blur(10px);border:1px solid var(--line);border-radius:var(--radius);
  box-shadow:0 20px 50px -30px rgba(0,0,0,.85)}
.card-pad{padding:20px}
.card-head{display:flex;align-items:center;justify-content:space-between;gap:12px;padding:15px 20px;border-bottom:1px solid var(--line)}
.card-head h2{font-size:15px}
.muted{color:var(--fg2)}
.eyebrow{font-size:10px;font-weight:700;letter-spacing:.18em;text-transform:uppercase;color:var(--fg2)}

/* ── badges / pills ── */
.badge{display:inline-flex;align-items:center;gap:6px;font-size:11px;font-weight:700;letter-spacing:.03em;
  padding:3px 10px;border-radius:999px;border:1px solid currentColor;line-height:1.6}
.badge.good{color:var(--good);background:var(--good-bg)}
.badge.warn{color:var(--warn);background:var(--warn-bg)}
.badge.bad{color:var(--bad);background:var(--bad-bg)}
.badge.info{color:var(--info);background:var(--info-bg)}
.badge.violet{color:var(--violet);background:rgba(209,57,20,.12)}
.badge.neutral{color:var(--fg2);background:var(--panel2);border-color:var(--line2)}
.dot{width:7px;height:7px;border-radius:50%;background:currentColor;flex:none}

/* ── app shell: sidebar + main ── */
.shell{display:grid;grid-template-columns:238px 1fr;min-height:100%}
.sidebar{position:sticky;top:0;align-self:start;height:100vh;display:flex;flex-direction:column;
  background:linear-gradient(180deg,rgba(18,11,29,.9),rgba(11,7,16,.9));backdrop-filter:blur(8px);
  border-right:1px solid var(--line);padding:18px 14px;z-index:5}
.brand{display:flex;align-items:center;gap:11px;padding:6px 8px 16px}
.brand .logo{width:34px;height:34px;border-radius:10px;flex:none;display:grid;place-items:center;color:#fff;
  background:linear-gradient(145deg,var(--violet),var(--magenta));box-shadow:0 8px 20px -8px rgba(209,57,20,.8)}
.brand .bt{font-family:var(--font-display);font-weight:700;font-size:15px;line-height:1.1}
.brand .bs{font-size:10px;letter-spacing:.14em;text-transform:uppercase;color:var(--fg2)}
.nav{display:flex;flex-direction:column;gap:3px;margin-top:6px}
.nav a{display:flex;align-items:center;gap:11px;padding:10px 12px;border-radius:11px;color:var(--fg2);
  font-weight:600;font-size:13.5px}
.nav a:hover{background:var(--panel);color:var(--fg);text-decoration:none}
.nav a.active{background:linear-gradient(90deg,rgba(209,57,20,.22),transparent);color:#fff}
.nav a.active svg{color:var(--violet)}
.nav a svg{flex:none;color:var(--fg2)}
.nav .sec{font-size:10px;font-weight:700;letter-spacing:.16em;text-transform:uppercase;color:var(--fg2);padding:14px 12px 6px}
.side-foot{margin-top:auto;padding-top:14px;border-top:1px solid var(--line)}
.side-user{display:flex;align-items:center;gap:10px;padding:8px}
.avatar{width:34px;height:34px;border-radius:50%;flex:none;display:grid;place-items:center;font-weight:700;color:#fff;
  background:linear-gradient(145deg,var(--violet),var(--violet-d))}
.side-user .su-name{font-weight:600;font-size:13px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.side-user .su-sub{font-size:11px;color:var(--fg2)}

.main{min-width:0;display:flex;flex-direction:column}
.topbar{display:flex;align-items:center;justify-content:space-between;gap:14px;padding:18px 26px;position:sticky;top:0;
  background:rgba(11,7,16,.72);backdrop-filter:blur(10px);border-bottom:1px solid var(--line);z-index:4}
.topbar .pagetitle{font-family:var(--font-display);font-size:19px;font-weight:700}
.topbar .pagesub{font-size:12.5px;color:var(--fg2);margin-top:1px}
.content{padding:22px 26px 40px;flex:1;min-width:0}

/* ── stat cards ── */
.stat-row{display:grid;grid-template-columns:repeat(auto-fit,minmax(150px,1fr));gap:14px;margin-bottom:20px}
.stat{position:relative;overflow:hidden;background:var(--glass);border:1px solid var(--line);border-radius:14px;padding:15px 17px}
.stat::before{content:"";position:absolute;inset:0 auto 0 0;width:3px;background:var(--sc,var(--violet))}
.stat .s-lbl{font-size:10px;font-weight:700;letter-spacing:.13em;text-transform:uppercase;color:var(--fg2)}
.stat .s-val{font-family:var(--font-display);font-size:26px;font-weight:700;color:var(--sc,var(--fg));margin-top:4px;font-variant-numeric:tabular-nums}
.stat .s-sub{font-size:11.5px;color:var(--fg2);margin-top:2px}

/* ── tables ── */
.table-wrap{overflow-x:auto;border:1px solid var(--line);border-radius:14px;background:var(--glass)}
table.tbl{width:100%;border-collapse:collapse;font-size:13px;min-width:560px}
table.tbl th{text-align:left;font-size:10.5px;font-weight:700;letter-spacing:.1em;text-transform:uppercase;color:var(--fg2);
  padding:12px 14px;border-bottom:1px solid var(--line);white-space:nowrap}
table.tbl td{padding:12px 14px;border-bottom:1px solid var(--line);vertical-align:middle}
table.tbl tr:last-child td{border-bottom:none}
table.tbl tbody tr:hover{background:rgba(209,57,20,.05)}
.mono{font-family:var(--font-mono)}
.nowrap{white-space:nowrap}
.t-actions{display:flex;gap:6px;flex-wrap:wrap}

/* ── tabs ── */
.tabs{display:flex;gap:4px;background:var(--panel);border:1px solid var(--line);border-radius:12px;padding:4px;margin-bottom:20px;flex-wrap:wrap}
.tabs a{padding:8px 15px;border-radius:9px;color:var(--fg2);font-weight:600;font-size:13px}
.tabs a:hover{color:var(--fg);text-decoration:none}
.tabs a.active{background:linear-gradient(180deg,var(--violet),var(--violet-d));color:#fff}

/* ── auth (login/register) ── */
.auth-shell{min-height:100%;display:flex;align-items:center;justify-content:center;padding:28px 16px;position:relative}
.auth-shell::before{content:"";position:fixed;inset:0;pointer-events:none;z-index:0;
  background-image:linear-gradient(rgba(209,57,20,.05) 1px,transparent 1px),linear-gradient(90deg,rgba(209,57,20,.05) 1px,transparent 1px);
  background-size:46px 46px;-webkit-mask-image:radial-gradient(circle at 50% 40%,#000 26%,transparent 76%);mask-image:radial-gradient(circle at 50% 40%,#000 26%,transparent 76%)}
.auth-card{position:relative;z-index:1;width:min(430px,100%);padding:34px 30px 28px;border-radius:20px;
  background:linear-gradient(180deg,rgba(29,20,48,.92),rgba(18,11,29,.94));border:1px solid var(--line2);
  box-shadow:0 30px 70px -30px rgba(0,0,0,.85)}
.auth-logo{width:56px;height:56px;margin:0 auto 16px;border-radius:16px;display:grid;place-items:center;color:#fff;
  background:linear-gradient(145deg,var(--violet),var(--magenta));box-shadow:0 14px 30px -12px rgba(209,57,20,.8)}
.auth-card h1{text-align:center;font-size:22px}
.auth-sub{text-align:center;color:var(--fg2);font-size:13px;margin:6px 0 22px}
.auth-foot{text-align:center;color:var(--fg2);font-size:12.5px;margin-top:18px;padding-top:16px;border-top:1px solid var(--line)}
.alert{font-size:12.5px;padding:10px 13px;border-radius:11px;margin-bottom:16px;border:1px solid}
.alert.err{color:#ff97aa;background:var(--bad-bg);border-color:rgba(255,77,109,.4)}
.alert.ok{color:var(--good);background:var(--good-bg);border-color:rgba(61,220,151,.4)}

/* ── modal + toast ── */
.modal{position:fixed;inset:0;z-index:70;display:flex;align-items:center;justify-content:center;padding:20px;
  background:rgba(5,3,10,.72);backdrop-filter:blur(3px)}
.modal .box{width:min(560px,100%);max-height:86vh;overflow:auto;background:var(--panel);border:1px solid var(--line2);
  border-radius:16px;box-shadow:0 30px 80px -30px rgba(0,0,0,.9)}
.modal .box.wide{width:min(820px,100%)}
.modal .m-head{display:flex;align-items:center;justify-content:space-between;padding:16px 20px;border-bottom:1px solid var(--line)}
.modal .m-head h3{font-size:15px}
.modal .m-body{padding:20px}
.icon-btn{background:none;border:none;color:var(--fg2);cursor:pointer;padding:5px;border-radius:8px;display:flex}
.icon-btn:hover{color:var(--fg);background:var(--panel2)}
.toast{position:fixed;left:50%;bottom:24px;transform:translateX(-50%);z-index:90;max-width:92vw;
  background:var(--panel2);border:1px solid var(--line2);border-left:3px solid var(--violet);color:var(--fg);
  font-size:13px;padding:12px 17px;border-radius:12px;box-shadow:0 18px 44px -18px rgba(0,0,0,.85)}
.toast.err{border-left-color:var(--bad)}
.toast.ok{border-left-color:var(--good)}

/* ── responsive ── */
@media (max-width:820px){
  .shell{grid-template-columns:1fr}
  .sidebar{position:static;height:auto;flex-direction:row;align-items:center;gap:8px;border-right:none;border-bottom:1px solid var(--line);overflow-x:auto;padding:10px 12px}
  .brand{padding:4px 6px}.brand .bs{display:none}
  .nav{flex-direction:row;margin:0;gap:2px}.nav .sec{display:none}.nav a{padding:8px 11px;white-space:nowrap}
  .side-foot{margin:0 0 0 auto;padding:0 0 0 8px;border:none;border-left:1px solid var(--line)}
  .side-user .su-sub{display:none}
  .topbar{padding:14px 16px}.content{padding:16px}
}
@media (prefers-reduced-motion:reduce){*{transition:none!important}}