@import url('https://fonts.googleapis.com/css2?family=Fraunces:opsz,wght@9..144,500;9..144,600;9..144,700&family=Inter:wght@400;500;600;700&family=IBM+Plex+Mono:wght@500;600&display=swap');

:root{
  --navy: #003C7F;
  --navy-dark: #00274F;
  --navy-soft: #34619B;
  --green: #00803E;
  --green-dark: #026B33;
  --green-tint: #E1F2E7;
  --paper: #F4F6FA;
  --card: #FFFFFF;
  --ink: #1B1F3B;
  --ink-soft: #5B6088;
  --line: #E1E3F0;
  --amber: #C97F1E;
  --amber-tint: #FBEEDD;
  --radius: 14px;
  --shadow: 0 4px 18px rgba(0,60,127,0.08);
  --topbar-h: 215px;
  --logo-size: 175px;
}

.hidden{ display:none !important; }
*{ box-sizing:border-box; }
html,body{ margin:0; padding:0; }
body{
  background: var(--paper);
  color: var(--ink);
  font-family:'Inter', sans-serif;
  min-height:100vh;
}
a{ color:inherit; text-decoration:none; }
h1,h2,h3,.display{
  font-family:'Fraunces', serif;
  font-weight:600;
  letter-spacing:-0.01em;
  color: var(--navy-dark);
  margin:0;
}
code,.mono{ font-family:'IBM Plex Mono', monospace; }

/* ---------- Topbar ---------- */
.topbar{
  position:sticky; top:0; z-index:30;
  background: linear-gradient(120deg, var(--navy-dark), var(--navy));
  box-shadow: 0 2px 14px rgba(0,39,79,.25);
}
.topbar-inner{
  max-width:1180px; margin:0 auto;
  height: var(--topbar-h);
  padding: 0 24px;
  display:flex; align-items:center; gap:18px;
}
.brand{ display:flex; align-items:center; gap:18px; margin-right:auto; }
.brand-logo{ width:var(--logo-size); height:var(--logo-size); background:#fff; border-radius:9px; padding:4px; flex-shrink:0; }
.brand-text{ display:flex; flex-direction:column; line-height:1.2; }
.brand-text .eyebrow{ font-size:10px; letter-spacing:.14em; text-transform:uppercase; color:rgba(255,255,255,.6); }
.brand-text .name{ font-family:'Fraunces',serif; font-weight:600; font-size:16px; color:#fff; }

nav.navlist{ display:flex; align-items:center; gap:4px; }
.navlist a{
  padding:9px 14px; border-radius:9px;
  font-size:21.6px; font-weight:500;
  color:rgba(255,255,255,.72);
  transition: background .15s, color .15s;
}
.navlist a:hover{ background:rgba(255,255,255,.08); color:#fff; }
.navlist a.active{ background:rgba(255,255,255,.16); color:#fff; }

.nav-toggle{
  display:none; flex-direction:column; justify-content:center; gap:4px;
  width:34px; height:34px; border:none; background:transparent; cursor:pointer; padding:0;
}
.nav-toggle span{ display:block; width:100%; height:2px; background:#fff; border-radius:2px; }

/* ---------- Layout general ---------- */
.page{ max-width:1180px; margin:0 auto; padding: 28px 24px 60px; }
.topbar-page{ display:flex; align-items:flex-end; justify-content:space-between; margin-bottom:24px; flex-wrap:wrap; gap:14px; }
.topbar-page h1{ font-size:25px; margin-bottom:4px; }
.topbar-page p{ margin:0; color:var(--ink-soft); font-size:13.5px; }

.flash{ padding:12px 16px; border-radius:10px; font-size:13.5px; font-weight:600; margin-bottom:20px; }
.flash-ok{ background:var(--green-tint); color:var(--green-dark); }
.flash-error{ background:#FBE4E4; color:#A32424; }

.btn{
  all:unset; cursor:pointer;
  display:inline-flex; align-items:center; gap:8px;
  padding:10px 16px; border-radius:10px;
  font-size:13.5px; font-weight:600;
  transition: transform .1s, box-shadow .15s, background .15s;
}
.btn:active{ transform:scale(.97); }
.btn-primary{ background:var(--green); color:#fff; box-shadow:0 3px 10px rgba(0,128,62,.25); }
.btn-primary:hover{ background:var(--green-dark); }
.btn-outline{ background:#fff; color:var(--navy); border:1px solid var(--line) !important; }
.btn-outline:hover{ border-color:var(--navy) !important; }
.btn-ghost{ background:transparent; color:var(--ink-soft); padding:8px 10px; }
.btn-ghost:hover{ color:var(--navy); }
.btn-sm{ padding:7px 12px; font-size:12.5px; border-radius:8px; }

.grid{ display:grid; gap:18px; }
.stat-grid{ grid-template-columns:repeat(4,1fr); margin-bottom:26px; }
.card{
  background:var(--card); border-radius:var(--radius);
  border:1px solid var(--line); box-shadow:var(--shadow);
  padding:20px;
}
.stat-card .label{ font-size:12px; color:var(--ink-soft); text-transform:uppercase; letter-spacing:.06em; font-weight:600; }
.stat-card .value{ font-family:'Fraunces',serif; font-size:32px; color:var(--navy-dark); margin-top:6px; font-weight:600; }
.stat-card .sub{ font-size:12px; color:var(--green-dark); margin-top:4px; font-weight:600; }

.section-title{ display:flex; align-items:center; justify-content:space-between; margin:6px 0 14px; }
.section-title h2{ font-size:17px; }

/* ---------- Ranking / cadena de referidos ---------- */
.chain-wrap{ padding:22px 24px 8px; }
.chain-row{ display:flex; align-items:center; gap:14px; padding:12px 0; border-bottom:1px dashed var(--line); }
.chain-row:last-child{ border-bottom:none; }
.chain-rank{ width:26px; height:26px; border-radius:50%; background:var(--navy); color:#fff; font-size:11.5px; font-weight:700; display:flex; align-items:center; justify-content:center; flex-shrink:0; font-family:'IBM Plex Mono',monospace; }
.chain-name{ font-weight:600; font-size:13.5px; flex-shrink:0; width:150px; overflow:hidden; text-overflow:ellipsis; white-space:nowrap; }
.chain-bar-track{ flex:1; height:8px; background:var(--paper); border-radius:6px; overflow:hidden; }
.chain-bar-fill{ height:100%; background:linear-gradient(90deg, var(--navy), var(--green)); border-radius:6px; }
.chain-count{ font-family:'IBM Plex Mono',monospace; font-size:12.5px; color:var(--ink-soft); width:80px; text-align:right; flex-shrink:0; }

/* ---------- Tarjeta de credencial de cliente ---------- */
.credentials-grid{ display:grid; grid-template-columns:repeat(auto-fill, minmax(300px,1fr)); gap:20px; }
.credential{ border-radius:16px; overflow:hidden; background:var(--card); border:1px solid var(--line); box-shadow:var(--shadow); }
.credential-top{ background:linear-gradient(120deg, var(--navy-dark), var(--navy)); padding:14px 16px; display:flex; align-items:center; gap:10px; position:relative; }
.credential-top::after{ content:""; position:absolute; right:0; top:0; bottom:0; width:8px; background:var(--green); }
.credential-top img{ width:28px; height:28px; border-radius:6px; background:#fff; padding:3px; flex-shrink:0; }
.credential-top .inst{ color:#fff; font-size:10.5px; letter-spacing:.08em; text-transform:uppercase; opacity:.75; }
.credential-top .prog{ color:#fff; font-family:'Fraunces',serif; font-size:13.5px; font-weight:600; }
.credential-body{ padding:16px; display:flex; gap:14px; }
.credential-info{ flex:1; min-width:0; }
.credential-info .cname{ font-weight:700; font-size:14.5px; color:var(--navy-dark); margin-bottom:2px; overflow:hidden; text-overflow:ellipsis; white-space:nowrap; }
.credential-info .cemail{ font-size:12px; color:var(--ink-soft); margin-bottom:10px; overflow:hidden; text-overflow:ellipsis; white-space:nowrap; }
.credential-info .code-label{ font-size:10px; text-transform:uppercase; letter-spacing:.08em; color:var(--ink-soft); font-weight:600; margin-bottom:3px; }
.code-value{ font-family:'IBM Plex Mono',monospace; background:var(--green-tint); color:var(--green-dark); font-weight:600; padding:5px 9px; border-radius:7px; display:inline-block; font-size:13px; letter-spacing:.02em; }
.qr-box{ width:88px; height:88px; flex-shrink:0; background:#fff; border:1px solid var(--line); border-radius:10px; display:flex; align-items:center; justify-content:center; padding:5px; }
.qr-box img,.qr-box canvas{ width:100%; height:100%; }
.credential-actions{ display:flex; gap:8px; padding:0 16px 16px; flex-wrap:wrap; }
.credential-stats{ display:flex; gap:14px; padding:0 16px 14px; font-size:11.5px; color:var(--ink-soft); }
.credential-stats b{ color:var(--navy-dark); }

/* ---------- Formularios ---------- */
.form-row{ display:flex; gap:12px; flex-wrap:wrap; margin-bottom:14px; }
.field{ flex:1; min-width:180px; display:flex; flex-direction:column; gap:6px; }
.field label{ font-size:12px; font-weight:600; color:var(--ink-soft); }
.field input, .field select{
  padding:10px 12px; border-radius:9px; border:1px solid var(--line);
  font-family:'Inter',sans-serif; font-size:13.5px; background:#fff; color:var(--ink);
}
.field input:focus, .field select:focus{ outline:2px solid var(--navy-soft); outline-offset:1px; }
.field-file{ border:1.5px dashed var(--line); border-radius:10px; padding:16px; text-align:center; background:#fff; }

/* ---------- Tablas ---------- */
table{ width:100%; border-collapse:collapse; font-size:13px; }
thead th{ text-align:left; font-size:11px; text-transform:uppercase; letter-spacing:.06em; color:var(--ink-soft); padding:10px 12px; border-bottom:1px solid var(--line); }
tbody td{ padding:12px; border-bottom:1px solid var(--line); vertical-align:middle; }
tbody tr:last-child td{ border-bottom:none; }
.badge{ display:inline-flex; align-items:center; gap:5px; padding:4px 10px; border-radius:20px; font-size:11.5px; font-weight:700; }
.badge-pendiente{ background:var(--amber-tint); color:var(--amber); }
.badge-inscrito{ background:var(--green-tint); color:var(--green-dark); }
.empty{ text-align:center; padding:46px 20px; color:var(--ink-soft); }
.empty .display{ font-size:19px; margin-bottom:6px; }

.filters{ display:flex; gap:8px; margin-bottom:14px; flex-wrap:wrap; }
.filters select{ padding:8px 11px; border-radius:8px; border:1px solid var(--line); font-size:12.5px; }

/* ---------- Modal-like panel para acciones (misma página) ---------- */
.panel{ margin-bottom:22px; }
.panel-toggle-row{ display:flex; gap:8px; margin-bottom:18px; flex-wrap:wrap; }

/* ---------- Landing pública ---------- */
.landing-shell{ min-height:100vh; width:100%; background:radial-gradient(circle at 20% 0%, var(--navy-soft), var(--navy-dark) 60%); display:flex; align-items:center; justify-content:center; padding:30px; }
.landing-card{ background:#fff; border-radius:20px; max-width:440px; width:100%; padding:32px 30px; box-shadow:0 30px 60px rgba(0,0,0,.3); }
.landing-crest{ display:flex; align-items:center; gap:10px; margin-bottom:18px; }
.landing-crest img{ width:44px; height:44px; }
.landing-crest .inst{ font-size:11px; text-transform:uppercase; letter-spacing:.1em; color:var(--ink-soft); }
.landing-card h1{ font-size:22px; margin:4px 0 6px; }
.landing-card .lead{ font-size:13.5px; color:var(--ink-soft); margin-bottom:20px; line-height:1.5; }
.landing-referrer{ background:var(--green-tint); color:var(--green-dark); padding:10px 14px; border-radius:10px; font-size:13px; font-weight:600; margin-bottom:20px; }
.landing-success{ text-align:center; padding:20px 0; }
.landing-success .big-check{ font-size:40px; margin-bottom:10px; }

/* ---------- Responsivo ---------- */
@media (max-width: 880px){
  :root{ --topbar-h:120px; --logo-size:96px; }
  .stat-grid{ grid-template-columns:repeat(2,1fr); }
  .nav-toggle{ display:flex; }
  nav.navlist{
    position:absolute; top:var(--topbar-h); left:0; right:0;
    background:var(--navy-dark);
    flex-direction:column; align-items:stretch; gap:2px;
    padding:8px 14px 14px; max-height:0; overflow:hidden;
    transition: max-height .25s ease;
  }
  nav.navlist.open{ max-height:260px; }
  .navlist a{ padding:12px 14px; }
}
@media (max-width: 520px){
  :root{ --topbar-h:96px; --logo-size:72px; }
  .stat-grid{ grid-template-columns:1fr 1fr; }
  .credentials-grid{ grid-template-columns:1fr; }
  .page{ padding:20px 14px 50px; }
  .topbar-inner{ padding:0 14px; }
}
:focus-visible{ outline:2px solid var(--navy-soft); outline-offset:2px; }