:root { 
    --primary: #8e44ad; 
    --primary-dark: #732d91;
    --dark: #2c3e50; 
    --light: #f0f2f5; 
    --text: #222f3e; 
    --text-muted: #8395a7;
    --success: #27ae60; 
    --danger: #e74c3c; 
    --card-bg: #ffffff;
    --input-border: #eee;
}

* { box-sizing: border-box; margin: 0; padding: 0; -webkit-tap-highlight-color: transparent; }
body { font-family: 'Poppins', sans-serif; background-color: var(--light); color: var(--text); }
.hidden { display: none !important; }

/* 🌟 CONTENEDOR TIPO APP 🌟 */
.admin-container { max-width: 800px; margin: 0 auto; padding: 20px; min-height: 100vh; padding-bottom: 50px; }

/* HEADER */
.admin-header { display: flex; flex-direction: column; gap: 5px; margin-bottom: 20px; background: var(--card-bg); padding: 20px; border-radius: 16px; box-shadow: 0 4px 15px rgba(0,0,0,0.05); }
.header-top { display: flex; justify-content: space-between; align-items: center; }
.header-top h1 { margin: 0; font-size: 1.4rem; color: var(--primary); }
.admin-subtitle { font-size: 0.85rem; color: var(--text-muted); }
.btn-exit-small { background: rgba(231, 76, 60, 0.1); color: var(--danger); border: none; padding: 8px 15px; border-radius: 10px; font-weight: bold; cursor: pointer; transition: 0.2s; }
.btn-exit-small:active { background: var(--danger); color: white; }

/* PESTAÑAS (TABS) */
.admin-tabs { display: flex; gap: 10px; margin-bottom: 25px; overflow-x: auto; padding-bottom: 5px; }
.tab-btn { flex: 1; min-width: 100px; background: var(--card-bg); border: 1px solid var(--input-border); color: var(--text-muted); padding: 12px 10px; border-radius: 14px; font-weight: 600; font-size: 0.85rem; cursor: pointer; text-align: center; box-shadow: 0 2px 5px rgba(0,0,0,0.02); transition: 0.2s; }
.tab-btn.active { background: var(--primary); color: white; border-color: var(--primary); box-shadow: 0 4px 10px rgba(142, 68, 173, 0.3); }

/* SECCIONES */
.section { display: none; animation: fadeIn 0.3s ease-in-out; }
.section.active { display: block; }
@keyframes fadeIn { from { opacity: 0; transform: translateY(10px); } to { opacity: 1; transform: translateY(0); } }

/* DASHBOARD KPI'S */
.stats-grid { display: grid; grid-template-columns: 1fr; gap: 15px; margin-bottom: 20px; }
@media (min-width: 480px) { .stats-grid { grid-template-columns: repeat(3, 1fr); } }
.card-stat { background: var(--card-bg); padding: 20px; border-radius: 16px; box-shadow: 0 4px 15px rgba(0,0,0,0.05); border-left: 5px solid var(--primary); display: flex; flex-direction: column; align-items: flex-start; }
.card-stat h3 { font-size: 2rem; margin: 0; color: var(--text); }
.card-stat p { color: var(--text-muted); font-size: 0.9rem; margin: 0; font-weight: 500;}

/* 🔥 CONTROLES DE BÚSQUEDA Y FILTRO 🔥 */
.admin-controls { display: flex; gap: 10px; margin-bottom: 15px; flex-wrap: wrap; }
.admin-controls input { flex: 2; min-width: 150px; padding: 10px 15px; border-radius: 10px; border: 1px solid var(--input-border); outline: none; font-family: inherit; font-size: 0.9rem; }
.admin-controls select { flex: 1; min-width: 120px; padding: 10px; border-radius: 10px; border: 1px solid var(--input-border); outline: none; font-family: inherit; font-size: 0.9rem; background: var(--card-bg); color: var(--text); }
.admin-controls input:focus, .admin-controls select:focus { border-color: var(--primary); box-shadow: 0 0 0 3px rgba(142, 68, 173, 0.1); }

/* 🔥 TARJETAS DE USUARIO COMPACTAS EN CUADRÍCULA 🔥 */
.users-list { display: grid; grid-template-columns: repeat(auto-fill, minmax(280px, 1fr)); gap: 12px; }
.user-card { background: var(--card-bg); padding: 12px 15px; border-radius: 14px; box-shadow: 0 2px 8px rgba(0,0,0,0.04); border: 1px solid var(--input-border); display: flex; flex-direction: column; gap: 8px; }
.uc-header { display: flex; justify-content: space-between; align-items: center; }
.uc-name { font-size: 0.95rem; font-weight: bold; color: var(--text); margin: 0; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; max-width: 70%; }
.badge { padding: 4px 8px; border-radius: 12px; font-size: 0.65rem; font-weight: bold; background: var(--success); color: white; text-transform: uppercase; }
.badge.banned { background: var(--danger); }
.uc-email { font-size: 0.75rem; color: var(--text-muted); margin: 0; word-break: break-all; }
.uc-controls { display: flex; gap: 8px; align-items: center; margin-top: 5px; }
.plan-selector { flex: 2; padding: 6px; border-radius: 8px; border: 1px solid #ccc; outline: none; background: #fafafa; font-family: inherit; font-weight: 600; color: var(--text); font-size: 0.8rem; }
.btn-action { flex: 1; padding: 6px; border: none; border-radius: 8px; cursor: pointer; font-weight: bold; color: white; transition: 0.2s; text-align: center; font-size: 0.8rem; }
.btn-ban { background: rgba(231, 76, 60, 0.1); color: var(--danger); }
.btn-ban:active { background: var(--danger); color: white; }
.btn-unban { background: rgba(39, 174, 96, 0.1); color: var(--success); }
.btn-unban:active { background: var(--success); color: white; }

/* CONFIGURACIÓN DE LÍMITES */
.plans-container { display: flex; flex-direction: column; gap: 20px; }
.config-card { background: var(--card-bg); padding: 20px; border-radius: 16px; box-shadow: 0 4px 15px rgba(0,0,0,0.05); }
.config-card.plan-free { border-top: 5px solid #8e44ad; }
.config-card.plan-pro { border-top: 5px solid #f39c12; }
.config-title { font-size: 1.2rem; font-weight: bold; margin-bottom: 5px; }
.config-desc { font-size: 0.8rem; color: var(--text-muted); margin-bottom: 20px; }

.input-group { margin-bottom: 15px; display: flex; flex-direction: column; gap: 5px; }
.input-group label { font-size: 0.85rem; font-weight: 600; color: #555; }
.input-group input, .input-group select { width: 100%; padding: 12px; border-radius: 10px; border: 1px solid #ccc; outline: none; font-family: inherit; font-size: 1rem; }
.input-group input:focus, .input-group select:focus { border-color: var(--primary); box-shadow: 0 0 0 3px rgba(142, 68, 173, 0.1); }

.btn-save-all { background: var(--success); color: white; border: none; padding: 16px; border-radius: 14px; font-weight: bold; font-size: 1.1rem; cursor: pointer; width: 100%; box-shadow: 0 8px 20px rgba(39, 174, 96, 0.3); transition: 0.2s; margin-top: 10px; }
.btn-save-all:active { transform: scale(0.98); }