/* ============================================================================
   Nexa Teknoloji · Events — design system
   Aesthetic: editorial "data artistry". Deep-indigo masthead over warm paper,
   high-contrast Fraunces display, mono eyebrows, sharp teal accents, a faint
   scatter-plot motif nodding to data viz. Mobile-first.
   ========================================================================== */

:root{
  --ink:#1B1338;          /* near-black indigo */
  --indigo:#241A47;
  --purple:#3D2C72;       /* Nexa primary */
  --purple-2:#5A43A0;
  --teal:#0DB3B5;         /* Nexa accent */
  --teal-deep:#0A8082;
  --paper:#F4F1EA;        /* warm off-white */
  --card:#FFFFFF;
  --line:#E6E1F0;
  --muted:#6E6691;
  --ok:#0DB3B5;
  --warn:#C2570A;

  --display:"Fraunces",Georgia,"Times New Roman",serif;
  --body:"Hanken Grotesk",-apple-system,BlinkMacSystemFont,Segoe UI,sans-serif;
  --mono:"Spline Sans Mono",ui-monospace,SFMono-Regular,Menlo,monospace;

  --r:16px;
  --shadow:0 18px 50px -24px rgba(36,26,71,.45);
}

*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;font-family:var(--body);color:var(--ink);background:var(--paper);
  -webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility;
  min-height:100vh;display:flex;flex-direction:column;line-height:1.55;
}

/* faint scatter-plot / coordinate grid behind everything */
.bg{
  position:fixed;inset:0;z-index:-1;pointer-events:none;
  background-color:var(--paper);
  background-image:
    radial-gradient(circle at 18% 30%, rgba(13,179,181,.10) 0 6px, transparent 7px),
    radial-gradient(circle at 82% 22%, rgba(61,44,114,.08) 0 5px, transparent 6px),
    radial-gradient(circle at 70% 78%, rgba(13,179,181,.07) 0 5px, transparent 6px),
    radial-gradient(circle at 30% 88%, rgba(61,44,114,.06) 0 4px, transparent 5px),
    linear-gradient(to right, rgba(36,26,71,.035) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(36,26,71,.035) 1px, transparent 1px);
  background-size:auto,auto,auto,auto,28px 28px,28px 28px;
}

/* ---------------------------------------------------------------- masthead */
.masthead{
  background:
    radial-gradient(120% 140% at 85% -20%, rgba(13,179,181,.20), transparent 55%),
    linear-gradient(135deg,var(--ink),var(--indigo) 60%,var(--purple));
  color:#fff;position:relative;overflow:hidden;
  border-bottom:2px solid var(--teal);
}
.masthead::after{ /* plotted dots inside the band */
  content:"";position:absolute;inset:0;opacity:.5;
  background-image:radial-gradient(rgba(255,255,255,.12) 1.2px, transparent 1.3px);
  background-size:22px 22px;mask-image:linear-gradient(90deg,transparent,#000 40%);
}
.masthead .inner{
  position:relative;max-width:980px;margin:0 auto;padding:18px 22px;
  display:flex;align-items:center;justify-content:space-between;gap:16px;
}
.brand{display:inline-flex;align-items:center;line-height:0}
.brand img{height:30px;width:auto}
.eyebrow{
  font-family:var(--mono);font-size:11px;letter-spacing:.26em;text-transform:uppercase;
  color:#cdbff2;display:inline-flex;align-items:center;gap:8px;
}
.eyebrow::before{content:"";width:7px;height:7px;border-radius:2px;background:var(--teal)}

/* ------------------------------------------------------------------- stage */
.stage{flex:1;width:100%;max-width:600px;margin:0 auto;padding:34px 20px 56px}
.stage.wide{max-width:980px}

.kicker{
  font-family:var(--mono);font-size:12px;letter-spacing:.2em;text-transform:uppercase;
  color:var(--teal-deep);font-weight:600;margin:0 0 14px;display:inline-flex;align-items:center;gap:9px;
}
.kicker::before{content:"";width:22px;height:2px;background:var(--teal);border-radius:2px}

h1{font-family:var(--display);font-weight:600;font-size:clamp(2rem,7vw,3.1rem);
   line-height:1.04;letter-spacing:-.015em;margin:0 0 12px}
h1 em{font-style:italic;color:var(--purple)}
.lead{color:var(--muted);font-size:1.06rem;margin:0 0 26px;max-width:46ch}

/* --------------------------------------------------------------- panel/card */
.panel{
  background:var(--card);border:1px solid var(--line);border-radius:var(--r);
  padding:30px 26px;box-shadow:var(--shadow);position:relative;
}
.panel + .panel{margin-top:18px}

/* ------------------------------------------------------------------- forms */
form{display:block}
.field{margin-top:18px}
.field:first-child{margin-top:0}
label{display:block;font-family:var(--mono);font-size:11.5px;letter-spacing:.12em;
      text-transform:uppercase;color:var(--muted);font-weight:600;margin-bottom:7px}
label .req{color:var(--teal-deep)}
input,textarea{
  width:100%;padding:13px 15px;font:inherit;font-size:1rem;color:var(--ink);
  background:#FBFAF7;border:1.5px solid var(--line);border-radius:12px;transition:.16s ease;
}
input::placeholder,textarea::placeholder{color:#a8a0c0}
input:focus,textarea:focus{outline:none;border-color:var(--teal);background:#fff;
  box-shadow:0 0 0 4px rgba(13,179,181,.16)}
textarea{min-height:130px;resize:vertical;line-height:1.5}
.row{display:flex;gap:14px}.row>.field{flex:1;margin-top:0}
.two{margin-top:18px}

.consent{display:flex;gap:11px;align-items:flex-start;margin-top:20px;
  background:#FBFAF7;border:1px solid var(--line);border-radius:12px;padding:13px 14px}
.consent input{width:20px;height:20px;margin-top:2px;flex:0 0 auto;accent-color:var(--teal)}
.consent label{font-family:var(--body);text-transform:none;letter-spacing:0;font-size:13.5px;
  color:var(--muted);font-weight:400;margin:0;line-height:1.5}
.consent a{color:var(--purple);font-weight:600}

.alert{margin:0 0 18px;padding:12px 14px;border-radius:11px;font-size:14px;
  background:rgba(194,87,10,.1);color:var(--warn);border:1px solid rgba(194,87,10,.25)}

/* ----------------------------------------------------------------- buttons */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:9px;width:100%;
  padding:15px 18px;margin-top:22px;border:0;border-radius:13px;cursor:pointer;
  font-family:var(--body);font-size:1.02rem;font-weight:700;color:#fff;text-decoration:none;
  background:linear-gradient(135deg,var(--purple),var(--purple-2));transition:.18s ease;
  box-shadow:0 12px 26px -14px rgba(61,44,114,.8)}
.btn:hover{transform:translateY(-1px);box-shadow:0 18px 30px -16px rgba(61,44,114,.85)}
.btn:active{transform:translateY(0)}
.btn.accent{background:linear-gradient(135deg,var(--teal),#13c9cb);
  box-shadow:0 12px 26px -14px rgba(13,179,181,.8)}
.btn.ghost{background:#fff;color:var(--ink);border:1.5px solid var(--line);box-shadow:none}
.btn.ghost:hover{border-color:var(--purple);color:var(--purple)}
.btn.sm{width:auto;padding:10px 16px;margin:0;font-size:.9rem;border-radius:11px}

.choices{display:grid;gap:14px;margin-top:8px}

/* ----------------------------------------------------------------- success */
.success{text-align:center}
.seal{width:74px;height:74px;border-radius:50%;margin:0 auto 18px;display:grid;place-items:center;
  background:radial-gradient(circle at 30% 25%,rgba(13,179,181,.25),rgba(13,179,181,.1));
  color:var(--teal-deep);border:2px solid rgba(13,179,181,.4)}
.seal svg{width:34px;height:34px}

/* -------------------------------------------------------------------- admin */
.bar{display:flex;justify-content:space-between;align-items:flex-end;gap:16px;flex-wrap:wrap;margin-bottom:18px}
.stats{display:grid;grid-template-columns:repeat(3,1fr);gap:12px;margin:18px 0}
.stat{background:var(--card);border:1px solid var(--line);border-radius:13px;padding:14px 16px}
.stat b{display:block;font-family:var(--display);font-size:1.9rem;line-height:1;color:var(--purple)}
.stat span{font-family:var(--mono);font-size:10.5px;letter-spacing:.12em;text-transform:uppercase;color:var(--muted)}
.toolbar{display:flex;gap:10px;flex-wrap:wrap;margin:16px 0 26px}
.backend{font-family:var(--mono);font-size:11px;letter-spacing:.08em;color:var(--muted)}
.backend b{color:var(--teal-deep)}

.sect{font-family:var(--display);font-weight:600;font-size:1.4rem;margin:26px 0 12px}
.q{border:1px solid var(--line);border-radius:14px;padding:16px 18px;margin-bottom:14px;background:var(--card)}
.q.done{opacity:.62}
.q .meta{font-family:var(--mono);font-size:11px;letter-spacing:.05em;color:var(--muted);
  display:flex;align-items:center;gap:8px;flex-wrap:wrap;margin-bottom:8px}
.q .text{font-size:1.05rem;font-weight:500;line-height:1.45}
.q .ans{margin-top:10px;font-size:14px;color:var(--teal-deep)}
.q .contact{margin-top:8px;display:flex;gap:14px;flex-wrap:wrap}
.q .contact a{font-family:var(--mono);font-size:12px;color:var(--purple);text-decoration:none}
.q .contact a:hover{text-decoration:underline}
.q form{margin-top:12px}
.q textarea{min-height:58px}
.tag{font-family:var(--mono);font-size:10px;letter-spacing:.08em;text-transform:uppercase;
  padding:3px 8px;border-radius:999px;font-weight:600}
.tag.new{background:rgba(194,87,10,.14);color:var(--warn)}
.tag.done{background:rgba(13,179,181,.16);color:var(--teal-deep)}

.tbl{width:100%;border-collapse:collapse;font-size:14px;background:var(--card);
  border:1px solid var(--line);border-radius:14px;overflow:hidden}
.tbl th,.tbl td{text-align:left;padding:11px 14px;border-bottom:1px solid var(--line);vertical-align:top}
.tbl th{font-family:var(--mono);font-size:10.5px;letter-spacing:.1em;text-transform:uppercase;
  color:var(--muted);background:#FBFAF7}
.tbl tr:last-child td{border-bottom:0}
.tbl .sub{color:var(--muted);font-size:12px}
.empty{color:var(--muted);padding:18px;text-align:center;font-size:14px}
.toplink{color:#cdbff2;font-family:var(--mono);font-size:11px;letter-spacing:.1em;text-decoration:none}
.toplink:hover{color:#fff}

/* --------------------------------------------------------------------- QR */
.qrgrid{display:grid;grid-template-columns:1fr 1fr;gap:22px;margin-top:8px}
.qrcard{text-align:center;border:1px solid var(--line);border-radius:16px;padding:22px;background:var(--card)}
.qrwrap{position:relative;width:230px;max-width:100%;margin:0 auto;aspect-ratio:1}
.qrwrap img{width:100%;height:100%;display:block}
.qrlogo{position:absolute;inset:0;margin:auto;width:46px;height:46px;background:#fff;border-radius:11px;
  display:grid;place-items:center;box-shadow:0 4px 14px rgba(36,26,71,.18);padding:6px}
.qrlogo img{width:100%}
.qrcard h3{font-family:var(--display);font-weight:600;margin:14px 0 4px;font-size:1.2rem}
.qrcard .url{font-family:var(--mono);font-size:11px;color:var(--muted);word-break:break-all}

/* ------------------------------------------------------------------ footer */
.foot{font-family:var(--mono);font-size:11px;letter-spacing:.08em;color:var(--muted);
  text-align:center;padding:26px 20px 32px;display:flex;justify-content:center;gap:9px}
.foot .dot{color:var(--teal)}

/* ---------------------------------------------------------------- motion */
@keyframes rise{from{opacity:0;transform:translateY(14px)}to{opacity:1;transform:none}}
.reveal{animation:rise .6s cubic-bezier(.2,.7,.2,1) both}
.reveal{animation-delay:calc(var(--d,0) * 70ms)}
@media (prefers-reduced-motion:reduce){.reveal{animation:none}}

@media (max-width:560px){
  .qrgrid{grid-template-columns:1fr}
  .row{flex-direction:column;gap:0}.row>.field{margin-top:18px}
  .stats{grid-template-columns:repeat(3,1fr)}
  .panel{padding:24px 20px}
}

/* --------------------------------------------------------------- print (QR) */
@media print{
  .bg,.masthead,.foot,.toolbar,.btn{display:none!important}
  body{background:#fff}
  .qrcard{border:1px solid #ccc;box-shadow:none;break-inside:avoid}
  .qrgrid{gap:30px}
}