/* ===================================================
   NeoEduca — Design System v2.0
   Paleta: Azul #1A73E8 · Verde #22C55E · Oscuro #0F172A
   Fuente: Nunito
=================================================== */
:root {
  --primary:        #1A73E8;
  --primary-light:  #60A5FA;
  --primary-dark:   #1557B0;
  --secondary:      #22C55E;
  --secondary-light:#86EFAC;
  --secondary-dark: #16A34A;
  --accent:         #0EA5E9;
  --dark:           #0F172A;
  --dark-mid:       #1E293B;
  --success:  #22C55E;
  --danger:   #EF4444;
  --warning:  #F59E0B;
  --info:     #0EA5E9;
  --bg:       #F0F7FF;
  --card:     #FFFFFF;
  --text:     #0F172A;
  --text-muted:#64748B;
  --border:   #DBEAFE;
  --radius:   14px;
  --radius-sm:8px;
  --shadow:   0 4px 20px rgba(26,115,232,.10);
  --shadow-lg:0 8px 40px rgba(26,115,232,.18);
  --gradient: linear-gradient(135deg, #1A73E8 0%, #0EA5E9 50%, #22C55E 100%);
  --font: 'Nunito', 'Segoe UI', Arial, sans-serif;
}
body.dark {
  --bg:#0A0F1E; --card:#111827; --text:#F1F5F9;
  --text-muted:#94A3B8; --border:#1E3A5F;
}
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{font-family:var(--font);background:var(--bg);color:var(--text);font-size:15px;line-height:1.6;min-height:100vh}
h1,h2,h3,h4,h5,h6{font-weight:800;line-height:1.25;color:var(--text)}
h1{font-size:clamp(26px,5vw,40px)}h2{font-size:clamp(20px,4vw,30px)}h3{font-size:20px}
p{color:var(--text-muted)}a{color:var(--primary);text-decoration:none}a:hover{text-decoration:underline}
.container{max-width:1120px;margin:0 auto;padding:0 20px}
.row{display:flex;flex-wrap:wrap;gap:20px}.col{flex:1;min-width:220px}

/* Cards */
.card{background:var(--card);border-radius:var(--radius);box-shadow:var(--shadow);padding:28px;border:1px solid var(--border)}
.card-sm{padding:16px 20px}
.card-hover{transition:transform .2s,box-shadow .2s;cursor:pointer}
.card-hover:hover{transform:translateY(-3px);box-shadow:var(--shadow-lg)}

/* Gradient */
.gradient-bg{background:var(--gradient)}
.gradient-text{background:var(--gradient);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}

/* Buttons */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;font-family:var(--font);font-size:15px;font-weight:700;padding:11px 26px;border-radius:50px;border:none;cursor:pointer;transition:all .2s ease;text-decoration:none;line-height:1;white-space:nowrap}
.btn-primary{background:var(--primary);color:#fff;box-shadow:0 4px 14px rgba(26,115,232,.35)}
.btn-primary:hover{background:var(--primary-dark);transform:translateY(-2px);box-shadow:0 6px 20px rgba(26,115,232,.45);text-decoration:none;color:#fff}
.btn-green{background:var(--secondary);color:#fff;box-shadow:0 4px 14px rgba(34,197,94,.35)}
.btn-green:hover{background:var(--secondary-dark);transform:translateY(-2px);box-shadow:0 6px 20px rgba(34,197,94,.45);text-decoration:none;color:#fff}
.btn-dark{background:var(--dark);color:#fff}
.btn-dark:hover{background:var(--dark-mid);text-decoration:none;color:#fff}
.btn-outline{background:transparent;color:var(--primary);border:2px solid var(--primary)}
.btn-outline:hover{background:var(--primary);color:#fff;text-decoration:none}
.btn-ghost{background:rgba(26,115,232,.09);color:var(--primary)}
.btn-ghost:hover{background:rgba(26,115,232,.16);text-decoration:none}
.btn-neo{background:var(--gradient);color:#fff;box-shadow:0 4px 16px rgba(26,115,232,.4)}
.btn-neo:hover{transform:translateY(-2px);box-shadow:0 8px 24px rgba(26,115,232,.5);text-decoration:none;color:#fff}
.btn-sm{font-size:13px;padding:7px 18px}.btn-lg{font-size:17px;padding:15px 36px}
.btn-full{width:100%}.btn:disabled{opacity:.5;cursor:not-allowed;transform:none;box-shadow:none}

/* Forms */
.form-group{margin-bottom:18px}
.form-label{display:block;font-weight:700;font-size:14px;color:var(--text);margin-bottom:6px}
.form-control{width:100%;padding:12px 16px;font-family:var(--font);font-size:15px;color:var(--text);background:var(--bg);border:2px solid var(--border);border-radius:var(--radius-sm);outline:none;transition:border-color .2s}
.form-control:focus{border-color:var(--primary-light);box-shadow:0 0 0 3px rgba(26,115,232,.12)}
.form-control.error{border-color:var(--danger)}
.form-hint{font-size:12px;color:var(--text-muted);margin-top:4px}
.form-error{font-size:12px;color:var(--danger);margin-top:4px;font-weight:600}

/* Alerts */
.alert{padding:14px 18px;border-radius:var(--radius-sm);font-size:14px;font-weight:600;margin-bottom:16px;display:flex;align-items:flex-start;gap:10px}
.alert-success{background:#DCFCE7;color:#166534;border-left:4px solid var(--success)}
.alert-danger{background:#FEE2E2;color:#991B1B;border-left:4px solid var(--danger)}
.alert-warning{background:#FEF3C7;color:#92400E;border-left:4px solid var(--warning)}
.alert-info{background:#DBEAFE;color:#1E40AF;border-left:4px solid var(--info)}

/* Badges */
.badge{display:inline-flex;align-items:center;gap:4px;font-size:12px;font-weight:700;padding:3px 10px;border-radius:50px;background:rgba(26,115,232,.12);color:var(--primary)}
.badge-green{background:#DCFCE7;color:#166534}.badge-danger{background:#FEE2E2;color:#991B1B}
.badge-warning{background:#FEF3C7;color:#92400E}.badge-dark{background:var(--dark);color:#fff}

/* Auth */
.auth-wrapper{min-height:100vh;display:grid;grid-template-columns:1fr 1fr}
@media(max-width:768px){.auth-wrapper{grid-template-columns:1fr}.auth-hero{display:none}}
.auth-hero{background:var(--gradient);display:flex;flex-direction:column;align-items:center;justify-content:center;padding:60px 48px;color:#fff;position:relative;overflow:hidden}
.auth-hero::before{content:'';position:absolute;width:360px;height:360px;background:rgba(255,255,255,.07);border-radius:50%;top:-80px;right:-80px}
.auth-hero::after{content:'';position:absolute;width:280px;height:280px;background:rgba(255,255,255,.05);border-radius:50%;bottom:-60px;left:-60px}
.auth-hero-title{font-size:clamp(28px,3vw,40px);font-weight:900;color:#fff;margin:20px 0 14px;text-align:center;line-height:1.2;position:relative;z-index:1}
.auth-hero p{color:rgba(255,255,255,.85);font-size:17px;text-align:center;max-width:360px}
.auth-panel{display:flex;flex-direction:column;align-items:center;justify-content:center;padding:48px 44px}
.auth-box{width:100%;max-width:420px}
@media(max-width:768px){.auth-panel{padding:36px 24px}}

/* Navbar */
.navbar{background:var(--card);border-bottom:1px solid var(--border);padding:0 24px;height:64px;display:flex;align-items:center;justify-content:space-between;position:sticky;top:0;z-index:100;box-shadow:0 2px 12px rgba(26,115,232,.08);overflow:visible;flex-wrap:nowrap}
.nav-brand{display:flex;align-items:center;gap:10px;text-decoration:none}
.nav-brand img{height:36px}
.nav-brand:hover{text-decoration:none}
.nav-links{display:flex;gap:4px;align-items:center;flex-wrap:nowrap;overflow:hidden}
.nav-link{padding:7px 14px;border-radius:var(--radius-sm);font-size:14px;font-weight:700;color:var(--text-muted);transition:all .2s;text-decoration:none}
.nav-link:hover,.nav-link.active{background:rgba(26,115,232,.09);color:var(--primary);text-decoration:none}
.nav-avatar{width:36px;height:36px;border-radius:50%;background:var(--gradient);display:flex;align-items:center;justify-content:center;color:#fff;font-weight:800;font-size:15px;cursor:pointer;flex-shrink:0}

/* XP Bar */
.xp-bar-wrap{display:flex;align-items:center;gap:10px}
.xp-bar{flex:1;height:10px;background:var(--border);border-radius:50px;overflow:hidden}
.xp-bar-fill{height:100%;background:var(--gradient);border-radius:50px;transition:width .6s ease}

/* Racha */
.racha-badge{display:inline-flex;align-items:center;gap:6px;background:linear-gradient(135deg,#FEF9C3,#FED7AA);color:#92400E;font-weight:800;font-size:15px;padding:5px 16px;border-radius:50px;border:1.5px solid #FCD34D}

/* Sidebar */
.layout-main{display:flex;min-height:calc(100vh - 64px)}
.sidebar{width:250px;background:var(--card);border-right:1px solid var(--border);padding:20px 12px;flex-shrink:0;display:flex;flex-direction:column;gap:2px}
.sidebar-section{font-size:11px;font-weight:800;letter-spacing:1px;color:var(--text-muted);text-transform:uppercase;padding:12px 14px 4px;margin-top:4px}
.sidebar-link{display:flex;align-items:center;gap:10px;padding:10px 14px;border-radius:var(--radius-sm);font-size:14px;font-weight:700;color:var(--text-muted);transition:all .2s;text-decoration:none}
.sidebar-link:hover{background:rgba(26,115,232,.08);color:var(--primary);text-decoration:none}
.sidebar-link.active{background:rgba(26,115,232,.12);color:var(--primary)}
.sidebar-link .icon{font-size:18px;width:22px;text-align:center;flex-shrink:0}
.sidebar-link .badge{margin-left:auto}
.page-content{flex:1;padding:32px;overflow-x:hidden}
@media(max-width:900px){.sidebar{display:none}.page-content{padding:20px 16px}}

/* Stat cards */
.stat-card{background:var(--card);border-radius:var(--radius);border:1px solid var(--border);padding:20px 22px;display:flex;align-items:center;gap:16px}
.stat-icon{width:52px;height:52px;border-radius:14px;display:flex;align-items:center;justify-content:center;font-size:24px;flex-shrink:0}
.stat-icon.blue{background:rgba(26,115,232,.12)}.stat-icon.green{background:rgba(34,197,94,.12)}
.stat-icon.orange{background:rgba(249,115,22,.12)}.stat-icon.cyan{background:rgba(14,165,233,.12)}
.stat-value{font-size:28px;font-weight:900;color:var(--text);line-height:1}
.stat-label{font-size:13px;color:var(--text-muted);font-weight:600;margin-top:2px}

/* Game cards */
.game-card{background:var(--card);border-radius:var(--radius);border:2px solid var(--border);padding:20px;text-align:center;cursor:pointer;transition:all .25s;text-decoration:none;display:block}
.game-card:hover{border-color:var(--primary);transform:translateY(-4px);box-shadow:var(--shadow-lg);text-decoration:none}
.game-card .game-icon{font-size:40px;margin-bottom:10px;display:block;filter:drop-shadow(0 4px 8px rgba(26,115,232,.25))}
.game-card h4{font-size:15px;color:var(--text);margin-bottom:4px}.game-card p{font-size:12px}

/* NEO bubble */
.neo-bubble{display:flex;align-items:flex-end;gap:12px;background:var(--card);border-radius:var(--radius);border:2px solid var(--border);padding:16px 20px}
.neo-bubble img{width:60px;flex-shrink:0}
.neo-bubble .bubble-text{background:linear-gradient(135deg,rgba(26,115,232,.07),rgba(34,197,94,.07));border-radius:12px 12px 12px 0;padding:12px 16px;font-weight:600;color:var(--text);font-size:15px;line-height:1.5}

/* Divider */
.divider{display:flex;align-items:center;gap:12px;color:var(--text-muted);font-size:13px;margin:18px 0}
.divider::before,.divider::after{content:'';flex:1;height:1px;background:var(--border)}

/* Spinner */
.spinner{width:22px;height:22px;border:3px solid var(--border);border-top-color:var(--primary);border-radius:50%;animation:spin .7s linear infinite;display:inline-block}
@keyframes spin{to{transform:rotate(360deg)}}

/* Toast */
#toast-container{position:fixed;bottom:24px;right:24px;z-index:9999;display:flex;flex-direction:column;gap:10px}
.toast{background:var(--card);border-left:4px solid var(--primary);padding:14px 20px;border-radius:var(--radius-sm);box-shadow:var(--shadow-lg);font-weight:600;font-size:14px;animation:slideIn .3s ease;max-width:320px}
.toast.success{border-left-color:var(--success)}.toast.danger{border-left-color:var(--danger)}.toast.warning{border-left-color:var(--warning)}
@keyframes slideIn{from{transform:translateX(60px);opacity:0}to{transform:translateX(0);opacity:1}}

/* Modal */
.modal-overlay{position:fixed;inset:0;background:rgba(15,23,42,.6);backdrop-filter:blur(4px);z-index:1000;display:flex;align-items:center;justify-content:center;padding:20px}
.modal{background:var(--card);border-radius:var(--radius);box-shadow:var(--shadow-lg);padding:36px;width:100%;max-width:480px;animation:modalIn .3s ease}
@keyframes modalIn{from{transform:scale(.95);opacity:0}to{transform:scale(1);opacity:1}}

/* Tabs */
.tabs{display:flex;gap:4px;border-bottom:2px solid var(--border);margin-bottom:24px}
.tab-btn{padding:10px 18px;font-size:14px;font-weight:700;color:var(--text-muted);background:none;border:none;cursor:pointer;border-bottom:3px solid transparent;margin-bottom:-2px;transition:all .2s;font-family:var(--font)}
.tab-btn.active{color:var(--primary);border-bottom-color:var(--primary)}.tab-btn:hover{color:var(--primary)}
.tab-panel{display:none}.tab-panel.active{display:block}

/* Registro tipo card */
.tipo-card{display:flex;flex-direction:column;align-items:center;gap:6px;padding:14px 8px;border-radius:12px;border:2px solid var(--border);background:var(--card);transition:all .2s;text-align:center;cursor:pointer}
.tipo-radio:checked + .tipo-card{border-color:var(--primary);background:rgba(26,115,232,.08);color:var(--primary)}
.tipo-row-card{display:flex;align-items:center;gap:16px;padding:16px 20px;border-radius:12px;border:2px solid var(--border);background:var(--card);transition:all .2s}
.tipo-radio:checked + .tipo-row-card{border-color:var(--primary);background:rgba(26,115,232,.07)}

/* Utilities */
.text-center{text-align:center}.text-right{text-align:right}
.text-muted{color:var(--text-muted)}.text-primary{color:var(--primary)}.text-green{color:var(--secondary)}.text-danger{color:var(--danger)}
.fw-bold{font-weight:700}.fw-black{font-weight:900}
.mt-0{margin-top:0}.mt-1{margin-top:8px}.mt-2{margin-top:16px}.mt-3{margin-top:24px}.mt-4{margin-top:32px}.mt-5{margin-top:48px}
.mb-0{margin-bottom:0}.mb-1{margin-bottom:8px}.mb-2{margin-bottom:16px}.mb-3{margin-bottom:24px}
.d-flex{display:flex}.align-center{align-items:center}.justify-between{justify-content:space-between}.justify-center{justify-content:center}
.gap-1{gap:8px}.gap-2{gap:16px}.gap-3{gap:24px}.w-full{width:100%}.hidden{display:none}
.grid-2{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
.grid-4{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}
@media(max-width:700px){.grid-2,.grid-3,.grid-4{grid-template-columns:1fr}}
@media(min-width:701px) and (max-width:900px){.grid-3,.grid-4{grid-template-columns:1fr 1fr}}

/* ════════════════════════════════════════════
   MOBILE — App layout completo
   Solo se activa en ventanas ≤ 768px via JS
════════════════════════════════════════════ */

/* ── Bottom Nav ── */
.mobile-bottom-nav {
  position: fixed;
  bottom: 0; left: 0; right: 0;
  background: var(--card);
  border-top: 2px solid var(--border);
  z-index: 500;
  box-shadow: 0 -2px 16px rgba(26,115,232,.10);
  padding-bottom: env(safe-area-inset-bottom, 0px);
}
.mobile-bottom-nav .nav-items {
  display: flex;
  justify-content: space-around;
}
.mobile-nav-item {
  display: flex; flex-direction: column;
  align-items: center; justify-content: center;
  padding: 8px 4px 6px;
  flex: 1; min-height: 56px;
  text-decoration: none;
  color: var(--text-muted);
  font-size: 10px; font-weight: 700;
  gap: 2px;
  border-top: 3px solid transparent;
  transition: color .15s, border-color .15s;
}
.mobile-nav-item .nav-icon { font-size: 21px; line-height: 1; }
.mobile-nav-item.active { color: var(--primary); border-top-color: var(--primary); }

/* ── FAB ── */
.fab-menu {
  position: fixed;
  right: 16px;
  z-index: 501;
  flex-direction: column-reverse;
  align-items: flex-end;
  gap: 10px;
}
.fab-main {
  width: 54px; height: 54px;
  border-radius: 50%;
  background: var(--gradient);
  border: none; cursor: pointer;
  display: flex; align-items: center; justify-content: center;
  box-shadow: 0 4px 18px rgba(26,115,232,.45);
  transition: transform .2s;
}
.fab-main:active { transform: scale(.92); }
.fab-items { display: none; flex-direction: column; gap: 8px; align-items: flex-end; }
.fab-items.open { display: flex; }
.fab-item {
  background: var(--card);
  border: 1.5px solid var(--border);
  border-radius: 50px;
  padding: 9px 18px;
  font-size: 13px; font-weight: 700;
  color: var(--primary);
  text-decoration: none;
  box-shadow: var(--shadow);
  white-space: nowrap;
  display: flex; align-items: center; gap: 8px;
  animation: fabSlide .2s ease;
}
@keyframes fabSlide { from{opacity:0;transform:translateY(6px)} to{opacity:1;transform:none} }

/* ── Reglas activadas SOLO en mobile (via JS que agrega clase .is-mobile al body) ── */
body.is-mobile .nav-links          { display: none !important; }
body.is-mobile .navbar             { height: 52px; padding: 0 14px; }
body.is-mobile .nav-brand img      { height: 28px; }
body.is-mobile .sidebar            { display: none !important; }
body.is-mobile .page-content       { padding: 14px 12px 0; }
body.is-mobile .layout-main        { min-height: calc(100vh - 52px); }
body.is-mobile .card               { padding: 16px 14px; }
body.is-mobile .card-sm            { padding: 11px 13px; }
body.is-mobile .grid-2,
body.is-mobile .grid-3,
body.is-mobile .grid-4             { grid-template-columns: 1fr !important; }
/* Respaldo con @media para cuando JS no cargó todavía */
@media (max-width: 768px) {
  .neo-2col, .neo-2col-rev         { grid-template-columns: 1fr !important; }
  .dash-main-grid                  { grid-template-columns: 1fr !important; }
}
body.is-mobile .stat-card          { padding: 13px 14px; gap: 10px; }
body.is-mobile .stat-value         { font-size: 22px; }
body.is-mobile .stat-icon          { width: 42px; height: 42px; font-size: 18px; }
body.is-mobile .modal              { margin: 10px; max-width: 100% !important; padding: 20px 16px; }
body.is-mobile #toast-container    { bottom: 68px; right: 10px; left: 10px; }
body.is-mobile .toast              { max-width: 100%; }
body.is-mobile .neo-bubble img     { width: 42px; }
body.is-mobile .neo-bubble .bubble-text { font-size: 13px; padding: 9px 12px; }
body.is-mobile .hide-mobile        { display: none !important; }
body.is-mobile h2                  { font-size: clamp(18px,5vw,26px); }
body.is-mobile h3                  { font-size: 16px; }
body.is-mobile .btn-lg             { font-size: 15px; padding: 12px 24px; }

/* Landing mobile */
body.is-mobile .nav-land           { padding: 0 14px; height: 54px; }
body.is-mobile .nav-land .nav-links { display: none !important; }

/* ── Dashboard responsive grids ── */
.dash-main-grid {
  display: grid;
  grid-template-columns: 1fr 340px;
  gap: 24px;
  align-items: start;
}
.games-quick-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 8px;
}
/* En mobile: todo en 1 columna */
body.is-mobile .dash-main-grid   { grid-template-columns: 1fr !important; }
body.is-mobile .games-quick-grid { grid-template-columns: repeat(2, 1fr) !important; }

/* Ocultar columna derecha del dashboard en mobile (se mueve abajo) */
body.is-mobile .dash-sidebar-col { order: 10; }

/* Game cards más compactos en mobile */
body.is-mobile .game-card { padding: 14px 10px; }
body.is-mobile .game-card .game-icon { font-size: 28px; margin-bottom: 6px; }
body.is-mobile .game-card h4 { font-size: 12px; }
body.is-mobile .game-card p  { font-size: 10px; }

/* ── Grids responsive estándar ── */
.neo-2col     { display:grid; grid-template-columns:1fr 340px; gap:24px; align-items:start; }
.neo-2col-rev { display:grid; grid-template-columns:400px 1fr; gap:24px; align-items:start; }
body.is-mobile .neo-2col,
body.is-mobile .neo-2col-rev { grid-template-columns:1fr !important; }

/* ── Configuración al final del sidebar ── */
.sidebar .sidebar-footer {
  margin-top:auto;
  padding-top:12px;
  border-top:1px solid var(--border);
}
/* Asegurar que sidebar usa flex column */
.sidebar { flex-direction:column; }