/* ─────────────────────────────────────────────────────────────
   ETECHBINGO v2  ·  Design System
   Fuentes: Sora (display) + DM Sans (body) via Google Fonts
───────────────────────────────────────────────────────────── */
@import url('https://fonts.googleapis.com/css2?family=Sora:wght@400;600;700;800&family=DM+Sans:wght@400;500;600&display=swap');

/* ── Tokens ── */
:root {
  --bg:          #080a0f;
  --surface:     #0f1117;
  --surface-2:   #161b26;
  --border:      rgba(255,255,255,.07);
  --border-hi:   rgba(255,255,255,.14);
  --accent:      #f7c948;
  --accent-2:    #e85d26;
  --success:     #22d06e;
  --danger:      #ff4d4f;
  --info:        #4da6ff;
  --text:        #e8eaf0;
  --muted:       #6b7280;
  --muted-2:     #9ca3af;
  --radius:      14px;
  --radius-sm:   8px;
  --font-display:'Sora', sans-serif;
  --font-body:   'DM Sans', sans-serif;
  --shadow:      0 8px 32px rgba(0,0,0,.55);
  --shadow-lg:   0 20px 60px rgba(0,0,0,.7);
  --glow:        0 0 24px rgba(247,201,72,.18);
}

/* ── Reset ── */
*,*::before,*::after { box-sizing:border-box; margin:0; padding:0; }
html { scroll-behavior:smooth; }
body {
  font-family: var(--font-body);
  background: var(--bg);
  color: var(--text);
  line-height:1.6;
  min-height:100vh;
}

/* ── Noise texture overlay ── */
body::before {
  content:'';
  position:fixed; inset:0; pointer-events:none; z-index:0;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 200 200' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.65' numOctaves='3' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)' opacity='0.04'/%3E%3C/svg%3E");
  opacity:.55;
}

/* ── Layout ── */
.layout-shell { position:relative; z-index:1; display:flex; flex-direction:column; min-height:100vh; }

/* ── Header / Nav ── */
.topnav {
  display:flex; align-items:center; justify-content:space-between;
  padding: 14px 28px;
  background: rgba(8,10,15,.8);
  backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--border);
  position: sticky; top:0; z-index:100;
}
.topnav-brand {
  display:flex; align-items:center; gap:12px; text-decoration:none;
}
.topnav-brand .logo-img { height:34px; width:auto; }
.topnav-brand .brand-name {
  font-family: var(--font-display); font-weight:800; font-size:18px;
  color: var(--accent); letter-spacing:-.3px;
}
.topnav-links { display:flex; align-items:center; gap:4px; }
.topnav-links a, .topnav-links button {
  font-family: var(--font-body); font-size:14px; font-weight:500;
  color: var(--muted-2); text-decoration:none;
  padding: 7px 12px; border-radius: var(--radius-sm);
  border:none; background:none; cursor:pointer;
  transition: color .15s, background .15s;
}
.topnav-links a:hover, .topnav-links button:hover { color:var(--text); background:var(--surface-2); }
.topnav-links a.active { color:var(--accent); }
.topnav-links .sep { width:1px; height:20px; background:var(--border-hi); margin:0 4px; }

/* ── Main content area ── */
main {
  flex:1; max-width:1080px; margin:0 auto;
  padding: 36px 24px 60px;
  position:relative; z-index:1;
}
main.wide { max-width:1320px; }

/* ── Page heading ── */
.page-title {
  font-family: var(--font-display); font-weight:800; font-size:28px;
  letter-spacing:-.5px; margin-bottom:6px;
}
.page-subtitle { color:var(--muted-2); font-size:15px; margin-bottom:28px; }

/* ── Cards / Panels ── */
.card {
  background: var(--surface);
  border:1px solid var(--border);
  border-radius: var(--radius);
  padding:22px;
  box-shadow: var(--shadow);
  transition: border-color .2s;
}
.card:hover { border-color: var(--border-hi); }
.card-title {
  font-family: var(--font-display); font-weight:700; font-size:16px;
  margin-bottom:14px; color:var(--text);
}
.card-muted { color:var(--muted-2); font-size:13px; margin-top:8px; }

/* ── Grid helpers ── */
.grid-3 { display:grid; grid-template-columns:repeat(3,1fr); gap:16px; }
.grid-2 { display:grid; grid-template-columns:repeat(2,1fr); gap:16px; }
.grid-4 { display:grid; grid-template-columns:repeat(4,1fr); gap:14px; }
@media(max-width:800px){
  .grid-3,.grid-4 { grid-template-columns:1fr 1fr; }
  .grid-2 { grid-template-columns:1fr; }
}
@media(max-width:540px){
  .grid-3,.grid-4,.grid-2 { grid-template-columns:1fr; }
}

/* ── Stat / KPI card ── */
.stat-card {
  background: var(--surface-2);
  border:1px solid var(--border); border-radius:var(--radius);
  padding:18px 20px; display:flex; flex-direction:column; gap:6px;
}
.stat-card .stat-label { font-size:12px; text-transform:uppercase; letter-spacing:.06em; color:var(--muted); }
.stat-card .stat-value { font-family:var(--font-display); font-size:32px; font-weight:800; line-height:1; }
.stat-card .stat-sub { font-size:12px; color:var(--muted-2); }

/* ── Badges ── */
.badge {
  display:inline-flex; align-items:center; gap:5px;
  font-size:11px; font-weight:600; text-transform:uppercase; letter-spacing:.05em;
  padding:3px 8px; border-radius:999px; white-space:nowrap;
}
.badge-yellow { background:rgba(247,201,72,.14); color:var(--accent); border:1px solid rgba(247,201,72,.25); }
.badge-green  { background:rgba(34,208,110,.12); color:var(--success); border:1px solid rgba(34,208,110,.22); }
.badge-red    { background:rgba(255,77,79,.12);  color:var(--danger);  border:1px solid rgba(255,77,79,.22); }
.badge-blue   { background:rgba(77,166,255,.12); color:var(--info);    border:1px solid rgba(77,166,255,.22); }
.badge-muted  { background:var(--surface-2); color:var(--muted-2); border:1px solid var(--border); }

/* ── Buttons ── */
.btn {
  display:inline-flex; align-items:center; gap:7px;
  font-family:var(--font-body); font-size:14px; font-weight:600;
  padding:10px 18px; border-radius:var(--radius-sm);
  border:none; cursor:pointer; text-decoration:none;
  transition: filter .15s, transform .1s, box-shadow .15s;
  line-height:1;
}
.btn:active { transform:scale(.97); }
.btn-primary {
  background: var(--accent); color:#0b0800;
  box-shadow: 0 4px 18px rgba(247,201,72,.25);
}
.btn-primary:hover { filter:brightness(1.06); box-shadow:var(--glow); }
.btn-danger  { background:var(--danger); color:#fff; }
.btn-danger:hover { filter:brightness(1.1); }
.btn-ghost {
  background:transparent; color:var(--muted-2);
  border:1px solid var(--border-hi);
}
.btn-ghost:hover { background:var(--surface-2); color:var(--text); }
.btn-sm { font-size:12px; padding:6px 12px; }
.btn-lg { font-size:16px; padding:13px 24px; }
.btn-icon { padding:8px; border-radius:var(--radius-sm); }

/* ── Forms ── */
.form-group { margin-bottom:18px; }
.form-label {
  display:block; font-size:13px; font-weight:600;
  color:var(--muted-2); margin-bottom:6px; letter-spacing:.02em;
}
.form-control {
  width:100%; padding:10px 13px;
  background:var(--surface-2); color:var(--text);
  border:1px solid var(--border-hi); border-radius:var(--radius-sm);
  font-family:var(--font-body); font-size:14px;
  transition:border-color .15s, box-shadow .15s;
  appearance:none;
}
.form-control:focus {
  outline:none;
  border-color: rgba(247,201,72,.5);
  box-shadow: 0 0 0 3px rgba(247,201,72,.1);
}
.form-control::placeholder { color:var(--muted); }
.form-control option { background:var(--surface-2); }
select.form-control { background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8' viewBox='0 0 12 8'%3E%3Cpath fill='%236b7280' d='M6 8L0 0h12z'/%3E%3C/svg%3E"); background-repeat:no-repeat; background-position:right 12px center; padding-right:32px; }
.form-hint { font-size:12px; color:var(--muted); margin-top:5px; }

/* Checkbox toggle */
.toggle-row { display:flex; align-items:center; justify-content:space-between; gap:12px; padding:10px 0; border-bottom:1px solid var(--border); }
.toggle-row:last-child { border-bottom:none; }
.toggle-row label { font-size:14px; color:var(--text); }
.toggle-row input[type=checkbox] { width:36px; height:20px; accent-color:var(--accent); cursor:pointer; }
.form-check { display:flex; align-items:center; gap:8px; cursor:pointer; }
.form-check input { accent-color:var(--accent); width:16px; height:16px; cursor:pointer; }
.form-check label { font-size:14px; cursor:pointer; }

/* File input */
input[type=file].form-control { padding:7px 13px; cursor:pointer; }
input[type=file].form-control::file-selector-button {
  font-family:var(--font-body); font-size:12px; font-weight:600;
  padding:5px 10px; margin-right:10px; border-radius:6px;
  background:var(--surface); color:var(--muted-2);
  border:1px solid var(--border-hi); cursor:pointer;
}

/* ── Tables ── */
.table-wrap { overflow-x:auto; border-radius:var(--radius); border:1px solid var(--border); }
table.etable { width:100%; border-collapse:collapse; font-size:13.5px; }
table.etable thead tr { background:var(--surface-2); }
table.etable th {
  padding:11px 14px; text-align:left;
  font-size:11px; font-weight:700; text-transform:uppercase; letter-spacing:.06em; color:var(--muted);
  border-bottom:1px solid var(--border);
}
table.etable td {
  padding:11px 14px; border-bottom:1px solid var(--border);
  vertical-align:middle;
}
table.etable tbody tr:last-child td { border-bottom:none; }
table.etable tbody tr:hover td { background:rgba(255,255,255,.025); }

/* ── Alerts / Flash ── */
.flash { padding:12px 16px; border-radius:var(--radius-sm); margin-bottom:12px; font-size:14px; border-left:3px solid; }
.flash.success { background:rgba(34,208,110,.08); border-color:var(--success); color:#6affa6; }
.flash.info    { background:rgba(77,166,255,.08);  border-color:var(--info);    color:#93c4ff; }
.flash.error   { background:rgba(255,77,79,.08);   border-color:var(--danger);  color:#ffaaab; }
.flash.warning { background:rgba(247,201,72,.08);  border-color:var(--accent);  color:#ffe08a; }

/* ── Divider ── */
.divider { height:1px; background:var(--border); margin:24px 0; }

/* ── Section header ── */
.section-header { display:flex; align-items:center; justify-content:space-between; margin-bottom:16px; }
.section-header h2 { font-family:var(--font-display); font-weight:700; font-size:18px; }

/* ── Fieldset panels ── */
fieldset.panel {
  border:1px solid var(--border); border-radius:var(--radius);
  padding:20px 22px; margin-bottom:22px;
  background:var(--surface);
}
fieldset.panel legend {
  font-family:var(--font-display); font-size:13px; font-weight:700;
  text-transform:uppercase; letter-spacing:.08em; color:var(--muted-2);
  padding:0 8px;
}

/* ── Mini bingo card ── */
.mini-card { border-collapse:collapse; margin:0 auto; }
.mini-card td {
  border:1px solid var(--border-hi);
  width:22px; height:22px; text-align:center;
  font-size:9px; font-weight:700;
}
.mini-card td.free { background:rgba(247,201,72,.15); color:var(--accent); }
.mini-card td.empty-90 { background:rgba(255,255,255,.03); }

/* ── Mode selector cards ── */
.mode-picker { display:grid; grid-template-columns:1fr 1fr; gap:12px; }
.mode-card {
  border:2px solid var(--border); border-radius:var(--radius); padding:16px;
  cursor:pointer; transition:border-color .2s, background .2s;
  text-align:center; position:relative;
}
.mode-card:hover { border-color:var(--border-hi); }
.mode-card.selected { border-color:var(--accent); background:rgba(247,201,72,.06); }
.mode-card .mode-icon { font-size:32px; margin-bottom:6px; }
.mode-card .mode-label { font-family:var(--font-display); font-weight:700; font-size:15px; }
.mode-card .mode-desc { font-size:12px; color:var(--muted-2); margin-top:4px; }

/* ── Sala card (config initial) ── */
.sala-card {
  background:var(--surface-2); border:1px solid var(--border);
  border-radius:var(--radius); padding:18px; position:relative;
}
.sala-card .sala-num {
  font-family:var(--font-display); font-weight:800; font-size:13px;
  color:var(--accent); text-transform:uppercase; letter-spacing:.06em; margin-bottom:10px;
}
.sala-card .remove-sala {
  position:absolute; top:12px; right:12px;
  background:transparent; border:none; color:var(--muted); cursor:pointer; font-size:18px;
  line-height:1; padding:2px;
}
.sala-card .remove-sala:hover { color:var(--danger); }

/* ── Progress steps ── */
.steps { display:flex; align-items:center; gap:0; margin-bottom:36px; }
.step {
  display:flex; align-items:center; gap:10px;
  font-size:13px; font-weight:600; color:var(--muted);
}
.step .step-num {
  width:28px; height:28px; border-radius:50%;
  display:flex; align-items:center; justify-content:center;
  font-family:var(--font-display); font-size:12px; font-weight:800;
  background:var(--surface-2); border:1px solid var(--border);
  flex-shrink:0;
}
.step.active { color:var(--text); }
.step.active .step-num { background:var(--accent); color:#0b0800; border-color:var(--accent); }
.step.done .step-num { background:rgba(34,208,110,.15); color:var(--success); border-color:var(--success); }
.step-line { flex:1; height:1px; background:var(--border); min-width:16px; }

/* ── Sala tabs in panel ── */
.sala-tabs { display:flex; gap:6px; overflow-x:auto; padding-bottom:2px; margin-bottom:20px; }
.sala-tab {
  flex-shrink:0; padding:8px 16px; border-radius:999px;
  font-size:13px; font-weight:600; cursor:pointer;
  border:1px solid var(--border); background:transparent; color:var(--muted-2);
  text-decoration:none; transition:all .15s;
}
.sala-tab:hover { color:var(--text); border-color:var(--border-hi); }
.sala-tab.active { background:var(--accent); color:#0b0800; border-color:var(--accent); }

/* ── Footer ── */
footer { text-align:center; padding:20px; color:var(--muted); font-size:12px; border-top:1px solid var(--border); position:relative; z-index:1; }

/* ── Scrollbar ── */
::-webkit-scrollbar { width:6px; height:6px; }
::-webkit-scrollbar-track { background:transparent; }
::-webkit-scrollbar-thumb { background:var(--border-hi); border-radius:3px; }

/* ── Animations ── */
@keyframes fadeUp { from{opacity:0;transform:translateY(14px)} to{opacity:1;transform:none} }
.fade-up { animation:fadeUp .3s ease both; }
@keyframes shimmer {
  0%{background-position:-200% 0}
  100%{background-position:200% 0}
}
.skeleton {
  background: linear-gradient(90deg,var(--surface) 25%,var(--surface-2) 50%,var(--surface) 75%);
  background-size:200% 100%;
  animation: shimmer 1.4s infinite;
  border-radius:6px; height:14px;
}