/* ============================================================
   COBRANZA SYSTEM — CSS Específico del Panel Admin/Cliente
   ============================================================ */

/* === LAYOUT SISTEMA === */
.sys-wrapper { display: flex; min-height: 100vh; background: var(--gray-50); }

/* Sidebar */
.sidebar {
  width: 260px; min-width: 260px; background: var(--verde-dark);
  display: flex; flex-direction: column; position: fixed;
  top: 0; left: 0; height: 100vh; z-index: 100;
  transition: var(--transition);
}
.sidebar-brand { padding: 24px 20px; border-bottom: 1px solid rgba(255,255,255,.1); }
.sidebar-brand img { height: 38px; filter: brightness(10); }
.sidebar-brand span { display: block; font-size: .75rem; color: rgba(255,255,255,.5); margin-top: 4px; text-transform: uppercase; letter-spacing: 1px; }
.sidebar-user { padding: 16px 20px; display: flex; align-items: center; gap: 12px; border-bottom: 1px solid rgba(255,255,255,.08); margin-bottom: 8px; }
.sidebar-avatar { width: 40px; height: 40px; background: var(--verde-primary); border-radius: 50%; display: flex; align-items: center; justify-content: center; font-weight: 700; color: var(--white); font-size: 1rem; }
.sidebar-user-info small { display: block; font-size: .72rem; color: rgba(255,255,255,.45); }
.sidebar-user-info strong { display: block; font-size: .88rem; color: var(--white); }
.sidebar-nav { flex: 1; padding: 8px 12px; overflow-y: auto; }
.nav-section-label { font-size: .68rem; font-weight: 700; letter-spacing: 1.5px; text-transform: uppercase; color: rgba(255,255,255,.35); padding: 16px 8px 6px; }
.sidebar-link {
  display: flex; align-items: center; gap: 12px;
  padding: 11px 12px; border-radius: 10px; font-size: .9rem;
  color: rgba(255,255,255,.7); transition: var(--transition); margin-bottom: 2px;
}
.sidebar-link:hover, .sidebar-link.active {
  background: rgba(255,255,255,.1); color: var(--white);
}
.sidebar-link.active { background: var(--verde-primary); color: var(--white); font-weight: 600; }
.sidebar-link .icon { font-size: 1.2rem; width: 24px; text-align: center; }
.sidebar-footer { padding: 16px 12px; border-top: 1px solid rgba(255,255,255,.1); }
.sidebar-footer a { display: flex; align-items: center; gap: 10px; color: rgba(255,255,255,.55); font-size: .88rem; padding: 8px 12px; border-radius: 8px; transition: var(--transition); }
.sidebar-footer a:hover { color: #FC8181; background: rgba(252,129,129,.1); }

/* Main Content */
.sys-main { margin-left: 260px; flex: 1; display: flex; flex-direction: column; min-height: 100vh; }
.sys-topbar { background: var(--white); border-bottom: 1px solid var(--gray-100); padding: 16px 32px; display: flex; align-items: center; justify-content: space-between; position: sticky; top: 0; z-index: 50; box-shadow: var(--shadow-sm); }
.sys-topbar h1 { font-size: 1.25rem; font-weight: 700; color: var(--text-dark); }
.topbar-actions { display: flex; align-items: center; gap: 12px; }
.sys-content { padding: 32px; flex: 1; }

/* === DASHBOARD CARDS === */
.kpi-grid { display: grid; grid-template-columns: repeat(4,1fr); gap: 20px; margin-bottom: 28px; }
.kpi-card {
  background: var(--white); border-radius: var(--radius); padding: 24px;
  box-shadow: var(--shadow-sm); border: 1px solid var(--gray-100);
  display: flex; align-items: center; gap: 16px; transition: var(--transition);
}
.kpi-card:hover { box-shadow: var(--shadow-md); transform: translateY(-2px); }
.kpi-icon { width: 52px; height: 52px; border-radius: 14px; display: flex; align-items: center; justify-content: center; font-size: 1.5rem; flex-shrink: 0; }
.kpi-icon.green  { background: var(--verde-bg); }
.kpi-icon.blue   { background: #EBF8FF; }
.kpi-icon.orange { background: #FEF3C7; }
.kpi-icon.red    { background: #FEF2F2; }
.kpi-value { font-size: 1.8rem; font-weight: 800; color: var(--text-dark); line-height: 1; }
.kpi-label { font-size: .8rem; color: var(--text-light); margin-top: 4px; }
.kpi-change { font-size: .78rem; font-weight: 600; margin-top: 6px; }
.kpi-change.up   { color: var(--verde-primary); }
.kpi-change.down { color: #C53030; }

/* === DATA TABLE === */
.data-card { background: var(--white); border-radius: var(--radius); box-shadow: var(--shadow-sm); border: 1px solid var(--gray-100); overflow: hidden; }
.data-card-header { padding: 20px 24px; border-bottom: 1px solid var(--gray-100); display: flex; align-items: center; justify-content: space-between; flex-wrap: wrap; gap: 12px; }
.data-card-header h2 { font-size: 1.05rem; font-weight: 700; color: var(--text-dark); }
.search-box { display: flex; align-items: center; gap: 8px; background: var(--gray-50); border: 1.5px solid var(--gray-200); border-radius: 8px; padding: 8px 12px; }
.search-box input { border: none; background: transparent; outline: none; font-size: .9rem; width: 200px; }
.table-wrap { overflow-x: auto; }
table { width: 100%; border-collapse: collapse; }
thead { background: var(--gray-50); }
th { padding: 12px 16px; text-align: left; font-size: .78rem; font-weight: 700; text-transform: uppercase; letter-spacing: .8px; color: var(--text-light); white-space: nowrap; }
td { padding: 14px 16px; font-size: .9rem; color: var(--text-dark); border-bottom: 1px solid var(--gray-100); }
tr:last-child td { border-bottom: none; }
tr:hover td { background: var(--gray-50); }
.table-actions { display: flex; gap: 6px; }
.btn-icon { width: 34px; height: 34px; border-radius: 8px; display: flex; align-items: center; justify-content: center; font-size: 1rem; border: none; cursor: pointer; transition: var(--transition); }
.btn-icon.edit   { background: #EBF8FF; color: #2C5282; }
.btn-icon.delete { background: #FEF2F2; color: #C53030; }
.btn-icon.view   { background: var(--verde-bg); color: var(--verde-dark); }
.btn-icon:hover  { transform: scale(1.1); }

/* Pagination */
.pagination { display: flex; justify-content: space-between; align-items: center; padding: 16px 24px; border-top: 1px solid var(--gray-100); font-size: .85rem; color: var(--text-light); }
.page-btns { display: flex; gap: 4px; }
.page-btn { width: 34px; height: 34px; border-radius: 8px; border: 1px solid var(--gray-200); background: var(--white); cursor: pointer; font-size: .85rem; display: flex; align-items: center; justify-content: center; transition: var(--transition); }
.page-btn.active, .page-btn:hover { background: var(--verde-primary); color: var(--white); border-color: var(--verde-primary); }

/* === MODAL === */
.modal-overlay {
  position: fixed; inset: 0; background: rgba(0,0,0,.5);
  backdrop-filter: blur(4px); z-index: 9000;
  display: flex; align-items: center; justify-content: center;
  padding: 20px; opacity: 0; pointer-events: none; transition: var(--transition);
}
.modal-overlay.open { opacity: 1; pointer-events: all; }
.modal {
  background: var(--white); border-radius: var(--radius-lg);
  width: 100%; max-width: 560px; max-height: 90vh; overflow-y: auto;
  box-shadow: 0 20px 60px rgba(0,0,0,.2);
  transform: scale(.95) translateY(20px); transition: var(--transition);
}
.modal-overlay.open .modal { transform: scale(1) translateY(0); }
.modal-header { padding: 24px 28px 16px; border-bottom: 1px solid var(--gray-100); display: flex; justify-content: space-between; align-items: center; }
.modal-header h3 { font-size: 1.15rem; font-weight: 700; }
.modal-close { width: 36px; height: 36px; border-radius: 8px; border: none; background: var(--gray-100); cursor: pointer; font-size: 1.1rem; display: flex; align-items: center; justify-content: center; transition: var(--transition); }
.modal-close:hover { background: #FEF2F2; color: #C53030; }
.modal-body { padding: 24px 28px; }
.modal-footer { padding: 16px 28px 24px; display: flex; justify-content: flex-end; gap: 12px; }

/* === CRONOGRAMA === */
.cronograma-table td.pagado { color: var(--verde-primary); font-weight: 600; }
.cronograma-table td.vencido { color: #C53030; font-weight: 600; }
.cronograma-table td.pendiente { color: var(--text-light); }

/* === LOGIN PAGE === */
.login-page { min-height: 100vh; display: flex; align-items: center; justify-content: center; background: linear-gradient(135deg, var(--verde-dark), var(--verde-primary), var(--turquesa)); position: relative; overflow: hidden; }
.login-page::before { content:''; position: absolute; inset: 0; background: url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='%23ffffff' fill-opacity='0.04'%3E%3Ccircle cx='30' cy='30' r='2'/%3E%3C/g%3E%3C/svg%3E"); }
.login-box { background: var(--white); border-radius: var(--radius-lg); padding: 44px 40px; width: 100%; max-width: 420px; position: relative; z-index: 1; box-shadow: 0 20px 60px rgba(0,0,0,.25); }
.login-logo { text-align: center; margin-bottom: 8px; }
.login-logo img { height: 50px; margin: 0 auto 12px; }
.login-box h2 { text-align: center; font-size: 1.5rem; font-weight: 800; color: var(--text-dark); margin-bottom: 6px; }
.login-box .subtitle { text-align: center; font-size: .88rem; color: var(--text-light); margin-bottom: 28px; }
.login-tabs { display: flex; gap: 4px; background: var(--gray-50); border-radius: 10px; padding: 4px; margin-bottom: 24px; }
.login-tab { flex: 1; padding: 9px; border-radius: 8px; border: none; font-weight: 600; font-size: .88rem; cursor: pointer; transition: var(--transition); background: transparent; color: var(--text-light); }
.login-tab.active { background: var(--verde-primary); color: var(--white); }

/* === CLIENTE PORTAL === */
.cliente-header { background: linear-gradient(135deg, var(--verde-dark), var(--verde-primary)); padding: 28px 32px; display: flex; align-items: center; justify-content: space-between; color: var(--white); }
.cliente-header img { height: 36px; filter: brightness(10); }
.cliente-main { padding: 32px; max-width: 900px; margin: 0 auto; }
.prestamo-card { background: var(--white); border-radius: var(--radius-lg); box-shadow: var(--shadow-md); overflow: hidden; margin-bottom: 24px; }
.prestamo-card-header { background: linear-gradient(135deg, var(--verde-primary), var(--turquesa)); padding: 20px 24px; color: var(--white); display: flex; justify-content: space-between; align-items: center; }
.prestamo-card-header h3 { font-size: 1.1rem; font-weight: 700; }
.progreso-pago { padding: 20px 24px; }
.progress-bar { height: 10px; background: var(--gray-100); border-radius: 50px; overflow: hidden; margin: 12px 0; }
.progress-fill { height: 100%; background: linear-gradient(90deg, var(--verde-primary), var(--turquesa)); border-radius: 50px; transition: width .8s ease; }

/* === WA MULTI-CONTACTO === */
.wa-modal-overlay { position: fixed; inset: 0; background: rgba(0,0,0,.6); z-index: 9999; display: flex; align-items: flex-end; justify-content: center; padding: 20px; opacity: 0; pointer-events: none; transition: var(--transition); }
.wa-modal-overlay.open { opacity: 1; pointer-events: all; }
.wa-modal { background: var(--white); border-radius: var(--radius-lg) var(--radius-lg) 0 0; width: 100%; max-width: 380px; padding: 28px 24px 32px; transform: translateY(40px); transition: var(--transition); }
.wa-modal-overlay.open .wa-modal { transform: translateY(0); }
.wa-modal h3 { font-size: 1.1rem; font-weight: 700; margin-bottom: 6px; }
.wa-modal p { font-size: .85rem; color: var(--text-light); margin-bottom: 20px; }
.wa-options { display: flex; flex-direction: column; gap: 10px; }
.wa-option { display: flex; align-items: center; gap: 14px; padding: 14px 16px; background: var(--gray-50); border-radius: var(--radius); border: 1.5px solid var(--gray-200); cursor: pointer; transition: var(--transition); text-decoration: none; color: var(--text-dark); }
.wa-option:hover { border-color: #25D366; background: #F0FFF4; }
.wa-option-icon { width: 42px; height: 42px; background: #25D366; border-radius: 50%; display: flex; align-items: center; justify-content: center; font-size: 1.3rem; color: var(--white); flex-shrink: 0; }
.wa-option-info strong { display: block; font-size: .9rem; font-weight: 600; }
.wa-option-info span { font-size: .8rem; color: var(--text-light); }
.wa-close { width: 100%; margin-top: 12px; padding: 12px; border: none; background: var(--gray-100); border-radius: var(--radius); font-weight: 600; cursor: pointer; transition: var(--transition); font-size: .9rem; }
.wa-close:hover { background: var(--gray-200); }

/* === RESPONSIVE SISTEMA === */
@media (min-width: 2000px) {
  html { font-size: 18px; }
  .sidebar { width: 320px; }
  .sys-main { margin-left: 320px; }
}

@media (max-width: 1024px) {
  .kpi-grid { grid-template-columns: repeat(2,1fr); }
  .sidebar { transform: translateX(-260px); }
  .sidebar.open { transform: translateX(0); }
  .sys-main { margin-left: 0; }
  .sys-topbar { padding: 16px 20px; }
  #sidebarToggle { display: block !important; }
  .sys-content { padding: 20px; }
}

@media (max-width: 640px) {
  .kpi-grid { grid-template-columns: 1fr; }
  .login-box { padding: 32px 24px; margin: 20px; }
  .sys-topbar h1 { font-size: 1.05rem; }
  .data-card-header { flex-direction: column; align-items: stretch; }
  .search-box input { width: 100%; }
}