/* ============================================
   FYBERLUX Cobros - Design System & Styles
   ============================================ */

:root {
  /* Dark theme defaults */
  --bg-primary: #0a0f1d;
  --bg-secondary: #111827;
  --bg-tertiary: #1f2937;
  --surface: rgba(17, 24, 39, 0.85);
  --surface-hover: rgba(31, 41, 55, 0.9);
  --surface-border: rgba(255, 255, 255, 0.08);

  /* Brand Colors: Electric Blue for Fiber Optics */
  --accent: #3b82f6;
  --accent-light: #60a5fa;
  --accent-dark: #2563eb;
  --accent-glow: 0 0 25px rgba(59, 130, 246, 0.25);

  /* Status Colors */
  --status-pagado: #10b981;
  --status-pagado-bg: rgba(16, 185, 129, 0.15);
  --status-proximo: #f59e0b;
  --status-proximo-bg: rgba(245, 158, 11, 0.15);
  --status-vencido: #ef4444;
  --status-vencido-bg: rgba(239, 68, 68, 0.15);
  --status-normal: #64748b;
  --status-normal-bg: rgba(100, 116, 139, 0.15);

  --whatsapp: #25d366;
  --whatsapp-hover: #1ebd5b;

  /* Typography */
  --text-primary: #f8fafc;
  --text-secondary: #94a3b8;
  --text-muted: #64748b;

  /* Borders & Radii */
  --border: rgba(255, 255, 255, 0.1);
  --radius-sm: 6px;
  --radius: 12px;
  --radius-lg: 16px;
  --radius-xl: 24px;

  /* Shadows */
  --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.2);
  --shadow: 0 8px 30px rgba(0, 0, 0, 0.35);
  --shadow-lg: 0 16px 50px rgba(0, 0, 0, 0.5);

  --transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
}

[data-theme="light"] {
  --bg-primary: #f1f5f9;
  --bg-secondary: #ffffff;
  --bg-tertiary: #e2e8f0;
  --surface: rgba(255, 255, 255, 0.9);
  --surface-hover: rgba(248, 250, 252, 0.95);
  --surface-border: rgba(0, 0, 0, 0.08);

  --text-primary: #0f172a;
  --text-secondary: #475569;
  --text-muted: #64748b;

  --border: rgba(0, 0, 0, 0.12);
  --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.05);
  --shadow: 0 8px 30px rgba(0, 0, 0, 0.08);
  --shadow-lg: 0 16px 50px rgba(0, 0, 0, 0.12);
}

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body {
  font-family: 'Inter', sans-serif;
  background-color: var(--bg-primary);
  color: var(--text-primary);
  line-height: 1.5;
  min-height: 100vh;
  transition: background-color 0.3s ease, color 0.3s ease;
}

/* ===== Header ===== */
header {
  background: var(--bg-secondary);
  border-bottom: 1px solid var(--border);
  padding: 1rem 1.5rem;
  position: sticky;
  top: 0;
  z-index: 100;
  backdrop-filter: blur(10px);
  box-shadow: var(--shadow-sm);
}

.header-content {
  max-width: 1400px;
  margin: 0 auto;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 1rem;
  flex-wrap: wrap;
}

.logo-area {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.logo-img {
  width: 46px;
  height: 46px;
  border-radius: var(--radius);
  box-shadow: var(--accent-glow);
  object-fit: contain;
}

.logo-area h1 {
  font-size: 1.35rem;
  font-weight: 800;
  letter-spacing: -0.5px;
  background: linear-gradient(to right, var(--text-primary), var(--accent-light));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.logo-area p {
  font-size: 0.8rem;
  color: var(--text-secondary);
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  flex-wrap: wrap;
}

/* ===== Buttons ===== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.4rem;
  padding: 0.6rem 1.2rem;
  font-size: 0.9rem;
  font-weight: 600;
  border-radius: var(--radius);
  border: 1px solid transparent;
  cursor: pointer;
  transition: var(--transition);
  font-family: inherit;
  white-space: nowrap;
}

.btn-sm {
  padding: 0.4rem 0.8rem;
  font-size: 0.8rem;
}

.btn-primary {
  background: var(--accent);
  color: white;
  box-shadow: 0 4px 14px rgba(59, 130, 246, 0.4);
}

.btn-primary:hover {
  background: var(--accent-dark);
  transform: translateY(-1px);
}

.btn-secondary {
  background: var(--bg-tertiary);
  color: var(--text-primary);
  border-color: var(--border);
}

.btn-secondary:hover {
  background: var(--surface-hover);
  border-color: var(--accent);
}

.btn-ghost {
  background: transparent;
  color: var(--text-secondary);
}

.btn-ghost:hover {
  background: var(--bg-tertiary);
  color: var(--text-primary);
}

.btn-danger {
  background: var(--status-vencido);
  color: white;
}

.btn-danger:hover {
  opacity: 0.9;
}

.btn-whatsapp {
  background: var(--whatsapp);
  color: white;
  font-weight: 700;
  box-shadow: 0 4px 14px rgba(37, 211, 102, 0.3);
}

.btn-whatsapp:hover {
  background: var(--whatsapp-hover);
  transform: scale(1.02);
}

/* ===== Dashboard Section ===== */
.dashboard-section {
  max-width: 1400px;
  margin: 1.5rem auto;
  padding: 0 1.5rem;
}

.dashboard-banner {
  background: linear-gradient(135deg, var(--bg-secondary) 0%, var(--bg-tertiary) 100%);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 1.5rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 1.5rem;
  flex-wrap: wrap;
  box-shadow: var(--shadow);
}

.date-info .today-label {
  font-size: 1.1rem;
  color: var(--text-primary);
}

.date-info .summary-text {
  color: var(--text-secondary);
  font-size: 0.95rem;
  margin-top: 0.25rem;
}

.stats-cards {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
}

.stat-card {
  background: var(--bg-primary);
  border: 1px solid var(--border);
  padding: 0.75rem 1.25rem;
  border-radius: var(--radius);
  display: flex;
  flex-direction: column;
  align-items: center;
  min-width: 140px;
}

.stat-number {
  font-size: 1.5rem;
  font-weight: 800;
}

.stat-label {
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  margin-top: 0.2rem;
}

.stat-card.status-pagado .stat-number {
  color: var(--status-pagado);
}

.stat-card.status-proximo .stat-number {
  color: var(--status-proximo);
}

.stat-card.status-vencido .stat-number {
  color: var(--status-vencido);
}

/* Urgent Cobros List */
.urgent-cobros {
  margin-top: 1.5rem;
  background: rgba(239, 68, 68, 0.05);
  border: 1px solid rgba(239, 68, 68, 0.2);
  border-radius: var(--radius-lg);
  padding: 1.25rem;
}

.urgent-cobros h3 {
  font-size: 1rem;
  color: var(--status-vencido);
  margin-bottom: 1rem;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.urgent-carousel-wrapper {
  width: 100%;
}

.urgent-dots {
  display: flex;
  justify-content: center;
  gap: 8px;
  margin-top: 1rem;
}

.urgent-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--border);
  cursor: pointer;
  transition: var(--transition);
}

.urgent-dot.active {
  background: var(--status-vencido);
  transform: scale(1.3);
}

.urgent-list-grid {
  width: 100%;
  display: grid;
  grid-template-columns: repeat(1, 1fr);
  gap: 0.75rem;
}

@media (min-width: 768px) {
  .urgent-list-grid {
    grid-template-columns: repeat(4, 1fr);
  }
}

.urgent-item {
  background: var(--bg-secondary);
  border: 1px solid var(--border);
  padding: 0.75rem 1rem;
  border-radius: var(--radius);
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.urgent-item-info strong {
  display: block;
  font-size: 0.95rem;
}

.urgent-item-info span {
  font-size: 0.8rem;
  color: var(--text-secondary);
}

/* ===== Search & Filters ===== */
.search-section {
  max-width: 1400px;
  margin: 0 auto 1.5rem;
  padding: 0 1.5rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 1rem;
  flex-wrap: wrap;
}

.search-bar {
  display: flex;
  gap: 0.75rem;
  flex: 1;
  flex-wrap: wrap;
}

.search-input-wrapper {
  position: relative;
  flex: 1;
  min-width: 250px;
}

.search-icon {
  position: absolute;
  left: 1rem;
  top: 50%;
  transform: translateY(-50%);
  font-size: 0.9rem;
  opacity: 0.6;
}

.search-input-wrapper input {
  width: 100%;
  padding: 0.6rem 1rem 0.6rem 2.5rem;
  background: var(--bg-secondary);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  color: var(--text-primary);
  font-size: 0.9rem;
  outline: none;
  transition: var(--transition);
}

.search-input-wrapper input:focus,
select:focus,
input:focus,
textarea:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.2);
}

select {
  padding: 0.6rem 2rem 0.6rem 1rem;
  background: var(--bg-secondary);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  color: var(--text-primary);
  font-size: 0.9rem;
  cursor: pointer;
  outline: none;
}

.badge-count {
  background: var(--bg-tertiary);
  padding: 0.5rem 1rem;
  border-radius: var(--radius-xl);
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--text-secondary);
  border: 1px solid var(--border);
}

/* ===== Main Clientes Grid ===== */
main {
  max-width: 1400px;
  margin: 0 auto 3rem;
  padding: 0 1.5rem;
}

.clientes-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(360px, 1fr));
  gap: 1.5rem;
}

.cliente-card {
  background: var(--surface);
  border: 1px solid var(--surface-border);
  border-radius: var(--radius-lg);
  padding: 1.25rem;
  box-shadow: var(--shadow);
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  gap: 1rem;
  transition: var(--transition);
  position: relative;
  overflow: hidden;
}

.cliente-card:hover {
  transform: translateY(-3px);
  border-color: var(--border);
  box-shadow: var(--shadow-lg);
}

/* Border top color based on status */
.cliente-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 4px;
  background: var(--status-normal);
}

.cliente-card.card-pagado::before {
  background: var(--status-pagado);
}

.cliente-card.card-proximo::before {
  background: var(--status-proximo);
}

.cliente-card.card-vencido::before {
  background: var(--status-vencido);
}

.card-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
}

.status-badge {
  font-size: 0.75rem;
  font-weight: 700;
  padding: 0.25rem 0.6rem;
  border-radius: var(--radius-sm);
  text-transform: uppercase;
  display: inline-flex;
  align-items: center;
  gap: 0.3rem;
}

.badge-pagado {
  background: var(--status-pagado-bg);
  color: var(--status-pagado);
}

.badge-proximo {
  background: var(--status-proximo-bg);
  color: var(--status-proximo);
}

.badge-vencido {
  background: var(--status-vencido-bg);
  color: var(--status-vencido);
}

.badge-normal {
  background: var(--status-normal-bg);
  color: var(--status-normal);
}

.localidad-tag {
  font-size: 0.75rem;
  font-weight: 600;
  background: var(--bg-tertiary);
  color: var(--text-secondary);
  padding: 0.2rem 0.6rem;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border);
}

.card-body h3 {
  font-size: 1.15rem;
  font-weight: 700;
  margin-bottom: 0.3rem;
  color: var(--text-primary);
}

.client-code {
  font-size: 0.8rem;
  color: var(--accent-light);
  font-weight: 600;
  margin-bottom: 0.75rem;
  display: block;
}

.client-details {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.5rem;
  font-size: 0.85rem;
  color: var(--text-secondary);
  background: var(--bg-primary);
  padding: 0.75rem;
  border-radius: var(--radius);
  border: 1px solid var(--border);
}

.detail-item strong {
  color: var(--text-primary);
}

/* 12 Months Grid */
.meses-section {
  margin-top: 0.5rem;
}

.meses-title {
  font-size: 0.75rem;
  color: var(--text-muted);
  margin-bottom: 0.4rem;
  display: flex;
  justify-content: space-between;
}

.meses-grid {
  display: grid;
  grid-template-columns: repeat(12, 1fr);
  gap: 0.25rem;
}

.mes-btn {
  background: var(--bg-primary);
  border: 1px solid var(--border);
  border-radius: 4px;
  padding: 0.35rem 0;
  font-size: 0.65rem;
  font-weight: 600;
  color: var(--text-muted);
  text-align: center;
  cursor: pointer;
  transition: var(--transition);
  user-select: none;
}

.mes-btn:hover {
  border-color: var(--text-secondary);
}

.mes-btn.pagado {
  background: var(--status-pagado);
  color: white;
  border-color: var(--status-pagado);
}

/* Card Actions */
.card-actions {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 0.5rem;
  margin-top: 0.5rem;
  padding-top: 0.75rem;
  border-top: 1px solid var(--border);
}

.actions-right {
  display: flex;
  gap: 0.25rem;
}

/* Empty State */
.empty-state {
  text-align: center;
  padding: 4rem 2rem;
  background: var(--bg-secondary);
  border-radius: var(--radius-lg);
  border: 1px dashed var(--border);
}

.empty-icon {
  font-size: 3rem;
  margin-bottom: 1rem;
}

/* ===== Modals ===== */
.modal-overlay,
.confirm-overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0, 0, 0, 0.75);
  backdrop-filter: blur(5px);
  display: flex;
  justify-content: center;
  align-items: center;
  z-index: 1000;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.2s ease;
}

.modal-overlay.active,
.confirm-overlay.active {
  opacity: 1;
  pointer-events: auto;
}

.modal {
  background: var(--bg-secondary);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  width: 90%;
  max-width: 600px;
  max-height: 90vh;
  display: flex;
  flex-direction: column;
  box-shadow: var(--shadow-lg);
  transform: translateY(20px);
  transition: transform 0.2s ease;
}

.modal-overlay.active .modal {
  transform: translateY(0);
}

.modal-header {
  padding: 1.25rem 1.5rem;
  border-bottom: 1px solid var(--border);
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.modal-body {
  padding: 1.5rem;
  overflow-y: auto;
}

.modal-footer {
  padding: 1rem 1.5rem;
  border-top: 1px solid var(--border);
  display: flex;
  justify-content: flex-end;
  gap: 0.75rem;
}

/* Forms */
.form-group {
  margin-bottom: 1.25rem;
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
}

label {
  display: block;
  font-size: 0.85rem;
  font-weight: 600;
  margin-bottom: 0.4rem;
  color: var(--text-primary);
}

.required {
  color: var(--status-vencido);
}

input,
select,
textarea {
  width: 100%;
  padding: 0.6rem 0.8rem;
  background: var(--bg-primary);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  color: var(--text-primary);
  font-size: 0.9rem;
  font-family: inherit;
}

textarea {
  resize: vertical;
  min-height: 80px;
}

.form-hint {
  display: block;
  font-size: 0.75rem;
  color: var(--text-muted);
  margin-top: 0.25rem;
}

/* Localidades Modal List */
.localidades-list {
  list-style: none;
  max-height: 200px;
  overflow-y: auto;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
}

.localidad-item {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 0.6rem 1rem;
  border-bottom: 1px solid var(--border);
  background: var(--bg-primary);
}

.localidad-item:last-child {
  border-bottom: none;
}

/* Confirm Dialog */
.confirm-dialog {
  background: var(--bg-secondary);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 2rem;
  width: 90%;
  max-width: 400px;
  text-align: center;
  box-shadow: var(--shadow-lg);
}

.confirm-dialog h3 {
  margin-bottom: 0.5rem;
}

.confirm-dialog p {
  color: var(--text-secondary);
  font-size: 0.9rem;
  margin-bottom: 1.5rem;
}

.confirm-dialog-actions {
  display: flex;
  justify-content: center;
  gap: 1rem;
}

/* Toast */
.toast-container {
  position: fixed;
  bottom: 2rem;
  right: 2rem;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  z-index: 2000;
}

.toast {
  background: var(--bg-secondary);
  border: 1px solid var(--border);
  border-left: 4px solid var(--accent);
  padding: 0.8rem 1.25rem;
  border-radius: var(--radius-sm);
  box-shadow: var(--shadow);
  display: flex;
  align-items: center;
  gap: 0.75rem;
  font-size: 0.9rem;
  animation: slideIn 0.3s ease;
}

.toast.success {
  border-left-color: var(--status-pagado);
}

.toast.error {
  border-left-color: var(--status-vencido);
}

@keyframes slideIn {
  from {
    transform: translateX(100%);
    opacity: 0;
  }

  to {
    transform: translateX(0);
    opacity: 1;
  }
}

/* Responsive */
@media (max-width: 768px) {
  .header-content {
    flex-direction: column;
    align-items: flex-start;
  }

  .header-actions {
    width: 100%;
    justify-content: space-between;
  }

  .form-row {
    grid-template-columns: 1fr;
    gap: 0;
  }

  .clientes-grid {
    grid-template-columns: 1fr;
  }

  .dashboard-banner {
    flex-direction: column;
    align-items: flex-start;
  }

  .stats-cards {
    width: 100%;
    justify-content: space-between;
  }

  .stat-card {
    flex: 1;
    min-width: 0;
    padding: 0.5rem;
  }
}

/* ===== Login Screen Styles ===== */
.login-container {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 100vh;
  padding: 1.5rem;
  background: radial-gradient(circle at 50% 30%, rgba(59, 130, 246, 0.15) 0%, transparent 60%);
}

.login-box {
  background: var(--surface);
  backdrop-filter: blur(16px);
  border: 1px solid var(--border);
  border-radius: var(--radius-xl);
  padding: 2.5rem 2rem;
  width: 100%;
  max-width: 420px;
  box-shadow: var(--shadow-lg);
  text-align: center;
}

.login-logo {
  width: 70px;
  height: 70px;
  border-radius: var(--radius-lg);
  box-shadow: var(--accent-glow);
  margin-bottom: 1rem;
  object-fit: contain;
}

.login-box h2 {
  font-size: 1.75rem;
  font-weight: 800;
  margin-bottom: 0.25rem;
  background: linear-gradient(to right, var(--text-primary), var(--accent-light));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.login-subtitle {
  color: var(--text-muted);
  font-size: 0.9rem;
  margin-bottom: 2rem;
}

.login-box .form-group {
  text-align: left;
}

.login-error {
  background: rgba(239, 68, 68, 0.15);
  border: 1px solid var(--status-vencido);
  color: var(--status-vencido);
  padding: 0.75rem;
  border-radius: var(--radius-sm);
  font-size: 0.85rem;
  margin-top: 1.25rem;
  text-align: left;
}