/* ============================================================
   TERNET STARK ☆ — Portal del Cliente
   CSS completamente independiente
   ============================================================ */

:root {
  --purple:  #7c3aed;
  --blue:    #2563eb;
  --green:   #16a34a;
  --orange:  #ea580c;
  --red:     #dc2626;
  --yellow:  #ca8a04;
  --text:    #0f172a;
  --muted:   #64748b;
  --muted2:  #94a3b8;
  --border:  #e2e8f0;
  --bg:      #f1f5f9;
  --surface: #ffffff;
  --sans:    'Inter','Segoe UI',system-ui,sans-serif;
  --mono:    'JetBrains Mono','Fira Code',monospace;
  --radius:  10px;
  --shadow:  0 4px 20px rgba(0,0,0,.08);
  --shadow-lg:0 20px 60px rgba(0,0,0,.14);
}

body.dark {
  --text:    #f1f5f9;
  --muted:   #94a3b8;
  --muted2:  #64748b;
  --border:  #1e293b;
  --bg:      #0f172a;
  --surface: #1e293b;
}

*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{font-size:16px;scroll-behavior:smooth}
body{font-family:var(--sans);background:var(--bg);color:var(--text);min-height:100vh;-webkit-font-smoothing:antialiased}

/* Fondo decorativo */
.page-bg{position:fixed;inset:0;pointer-events:none;z-index:0;
  background:radial-gradient(ellipse 80% 50% at 20% 10%,rgba(124,58,237,.12),transparent 60%),
             radial-gradient(ellipse 60% 40% at 85% 85%,rgba(37,99,235,.10),transparent 60%)}

/* Contenedor principal */
.portal-wrap{position:relative;z-index:1;max-width:520px;margin:0 auto;padding:20px 16px 40px}

/* Header */
.portal-header{text-align:center;padding:20px 0 10px}
.logo-box{display:inline-flex;background:#0f172a;border-radius:14px;padding:12px 20px;margin-bottom:8px;box-shadow:0 4px 20px rgba(124,58,237,.25)}
.logo-box img{width:160px;height:auto;display:block}
.portal-tagline{font-size:11px;letter-spacing:2.5px;text-transform:uppercase;color:var(--muted);margin-top:4px}

/* Tarjeta base */
.card{background:var(--surface);border:1px solid var(--border);border-radius:20px;padding:24px;margin-top:16px;box-shadow:var(--shadow);animation:cardIn .35s ease}
@keyframes cardIn{from{opacity:0;transform:translateY(16px) scale(.97)}to{opacity:1;transform:none}}

/* Login */
.card-title{font-size:18px;font-weight:900;margin-bottom:4px}
.card-subtitle{font-size:13px;color:var(--muted);margin-bottom:20px;line-height:1.6}
.form-label{display:block;font-size:10px;font-weight:800;text-transform:uppercase;letter-spacing:.6px;color:var(--muted);margin-bottom:5px}
.form-input{width:100%;padding:11px 14px;border:1.5px solid var(--border);border-radius:var(--radius);font-size:15px;font-family:var(--sans);color:var(--text);background:var(--bg);outline:none;transition:border-color .15s,box-shadow .15s}
.form-input:focus{border-color:var(--purple);box-shadow:0 0 0 3px rgba(124,58,237,.14)}
.btn-primary{display:block;width:100%;padding:13px;background:linear-gradient(135deg,var(--purple),#4f46e5);color:#fff;border:none;border-radius:var(--radius);font-size:14px;font-weight:800;font-family:var(--sans);cursor:pointer;margin-top:12px;transition:all .2s;letter-spacing:.2px}
.btn-primary:hover{transform:translateY(-1px);box-shadow:0 8px 24px rgba(124,58,237,.35)}
.btn-primary:active{transform:scale(.98)}
.btn-secondary{display:inline-flex;align-items:center;gap:6px;padding:8px 16px;border:1.5px solid var(--border);border-radius:var(--radius);background:transparent;color:var(--text);font-size:13px;font-weight:700;font-family:var(--sans);cursor:pointer;transition:all .15s}
.btn-secondary:hover{border-color:var(--purple);color:var(--purple)}

/* Error */
.error-box{background:#fef2f2;border:1px solid #fecaca;border-radius:8px;padding:10px 14px;font-size:13px;color:var(--red);margin-bottom:12px;display:flex;align-items:center;gap:8px;animation:shake .3s}
@keyframes shake{0%,100%{transform:translateX(0)}25%{transform:translateX(-5px)}75%{transform:translateX(5px)}}

/* Loader */
.loader{display:flex;align-items:center;justify-content:center;gap:10px;padding:20px;color:var(--muted);font-size:13px}
.spinner{width:20px;height:20px;border:2px solid var(--border);border-top-color:var(--purple);border-radius:50%;animation:spin .6s linear infinite}
@keyframes spin{to{transform:rotate(360deg)}}

/* Badge de estado */
.status-badge{display:inline-flex;align-items:center;gap:5px;padding:5px 14px;border-radius:20px;font-size:12px;font-weight:800;white-space:nowrap}
.status-activo    {background:#dcfce7;color:#15803d}
.status-suspendido{background:#fee2e2;color:#dc2626}
.status-pendiente {background:#ffedd5;color:#c2410c}

/* Alert banners */
.alert{border-radius:10px;padding:12px 16px;font-size:13px;font-weight:600;margin-bottom:14px;display:flex;align-items:flex-start;gap:10px}
.alert-red   {background:#fef2f2;border:1px solid #fecaca;color:#dc2626}
.alert-yellow{background:#fefce8;border:1px solid #fde047;color:#854d0e}
.alert-green {background:#f0fdf4;border:1px solid #bbf7d0;color:#15803d}
.alert-blue  {background:#eff6ff;border:1px solid #bfdbfe;color:#1d4ed8}

/* Stat mini cards */
.stats-grid{display:grid;grid-template-columns:1fr 1fr 1fr;gap:8px;margin-bottom:16px}
.stat-mini{background:var(--bg);border:1px solid var(--border);border-radius:10px;padding:10px 12px;text-align:center}
.stat-mini-label{font-size:9px;font-weight:700;text-transform:uppercase;letter-spacing:.5px;color:var(--muted2);margin-bottom:4px}
.stat-mini-val{font-size:16px;font-weight:900;font-family:var(--mono);line-height:1.2}

/* Tabla pagos */
.pago-row{display:flex;justify-content:space-between;align-items:center;padding:10px 0;border-bottom:1px solid var(--border);font-size:13px}
.pago-row:last-child{border-bottom:none}
.pago-method{font-weight:700}
.pago-date{font-size:11px;color:var(--muted);margin-top:2px;font-family:var(--mono)}
.pago-amount{font-weight:800;font-family:var(--mono);color:var(--green)}

/* Financiamiento card */
.fin-progress{height:8px;background:var(--border);border-radius:4px;overflow:hidden;margin:6px 0}
.fin-progress-fill{height:100%;background:linear-gradient(90deg,var(--purple),var(--blue));border-radius:4px;transition:width .5s}

/* Sección */
.section-title{font-size:11px;font-weight:800;text-transform:uppercase;letter-spacing:.6px;color:var(--muted);margin-bottom:10px}

/* Footer del portal */
.portal-footer{text-align:center;margin-top:24px;font-size:12px;color:var(--muted);line-height:1.9}
.portal-footer a{color:var(--purple);text-decoration:none;font-weight:700}
.portal-footer a:hover{text-decoration:underline}

/* WhatsApp button */
.btn-wa{display:flex;align-items:center;justify-content:center;gap:8px;width:100%;padding:12px;background:#25d366;color:#fff;border:none;border-radius:var(--radius);font-size:14px;font-weight:800;font-family:var(--sans);cursor:pointer;margin-top:8px;transition:all .2s}
.btn-wa:hover{filter:brightness(.93);transform:translateY(-1px)}

/* Botón dark mode */
.dark-btn{position:fixed;top:14px;right:14px;width:38px;height:38px;border:1px solid var(--border);border-radius:var(--radius);background:var(--surface);cursor:pointer;font-size:16px;display:flex;align-items:center;justify-content:center;z-index:100;box-shadow:var(--shadow)}

/* Divider */
.divider{height:1px;background:var(--border);margin:14px 0}

/* Volver botón */
.btn-back{background:none;border:none;color:var(--purple);font-size:13px;font-weight:700;font-family:var(--sans);cursor:pointer;display:flex;align-items:center;gap:5px;padding:0;margin-bottom:12px}
.btn-back:hover{text-decoration:underline}

/* Responsive */
@media(max-width:400px){
  .card{padding:18px;border-radius:16px}
  .stats-grid{grid-template-columns:1fr 1fr}
  .portal-wrap{padding:14px 12px 32px}
}