/* BenitoExpenseTracker Design System - Dual Theme (Light & Dark) */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700&family=Outfit:wght@500;600;700&display=swap');

:root {
  --font-family-base: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --font-family-display: 'Outfit', 'Inter', sans-serif;
  --transition-speed: 0.25s;
}

/* --- LIGHT THEME (Default) --- */
:root, html[data-theme="light"] {
  --color-primary: #0D233A;
  --color-primary-container: #E2EDF8;
  --color-on-primary: #FFFFFF;
  --color-on-primary-container: #081726;

  --color-secondary: #F27A1A;
  --color-secondary-container: #FFEDD5;
  --color-secondary-light: #FFA726;
  --color-on-secondary: #FFFFFF;
  --color-on-secondary-container: #7C2D12;

  --color-accent-green: #65B32E;
  --color-accent-green-container: #ECFDF5;
  --color-on-accent-green: #FFFFFF;

  --color-background: #F8FAFC;
  --color-surface: #FFFFFF;
  --color-surface-container-low: #F1F5F9;
  --color-surface-container-high: #E2E8F0;
  --color-border: #E2E8F0;

  --color-text-primary: #0A192F;
  --color-text-secondary: #475569;
  --color-text-muted: #94A3B8;

  --color-success: #16A34A;
  --color-warning: #EAB308;
  --color-error: #DC2626;
  --color-info: #0284C7;

  --hero-card-bg: linear-gradient(135deg, #0D233A 0%, #15375B 100%);
  --hero-card-text: #FFFFFF;
  --hero-card-glow: 0 10px 25px -5px rgba(13, 35, 58, 0.25);

  --card-shadow: 0 1px 3px 0 rgba(13, 35, 58, 0.05), 0 1px 2px -1px rgba(13, 35, 58, 0.05);
  --modal-bg: #FFFFFF;
  --nav-bg: #FFFFFF;
  --nav-border: #E2E8F0;
}

/* --- DARK THEME (OLED / True Dark Friendly) --- */
html[data-theme="dark"] {
  --color-primary: #3B82F6;
  --color-primary-container: #1E293B;
  --color-on-primary: #FFFFFF;
  --color-on-primary-container: #93C5FD;

  --color-secondary: #FB923C;
  --color-secondary-container: #431407;
  --color-secondary-light: #FDBA74;
  --color-on-secondary: #431407;
  --color-on-secondary-container: #FED7AA;

  --color-accent-green: #4ADE80;
  --color-accent-green-container: #064E3B;
  --color-on-accent-green: #022C22;

  --color-background: #070D14;
  --color-surface: #0F172A;
  --color-surface-container-low: #1E293B;
  --color-surface-container-high: #334155;
  --color-border: rgba(255, 255, 255, 0.08);

  --color-text-primary: #F8FAFC;
  --color-text-secondary: #94A3B8;
  --color-text-muted: #64748B;

  --color-success: #22C55E;
  --color-warning: #FBBF24;
  --color-error: #F87171;
  --color-info: #38BDF8;

  --hero-card-bg: linear-gradient(135deg, #0F172A 0%, #172554 100%);
  --hero-card-text: #F8FAFC;
  --hero-card-glow: 0 4px 20px -2px rgba(0, 0, 0, 0.7);

  --card-shadow: 0 4px 20px -2px rgba(0, 0, 0, 0.5);
  --modal-bg: #0F172A;
  --nav-bg: rgba(15, 23, 42, 0.95);
  --nav-border: rgba(255, 255, 255, 0.08);
}

/* Fluid Layout & Reset */
* {
  box-sizing: border-box;
}

body {
  margin: 0;
  padding: 0;
  background-color: var(--color-background);
  color: var(--color-text-primary);
  font-family: var(--font-family-base);
  font-size: 14px;
  line-height: 1.5;
  min-height: 100vh;
  width: 100%;
  max-width: 100vw;
  overflow-x: hidden;
  transition: background-color var(--transition-speed), color var(--transition-speed);
  padding-bottom: 76px; /* Space for bottom nav on mobile */
}

/* Typography */
h1, h2, h3, h4, h5, h6, .brand-font {
  font-family: var(--font-family-display);
  font-weight: 700;
  letter-spacing: -0.02em;
  color: var(--color-text-primary);
}

/* Top App Header */
.top-header {
  position: sticky;
  top: 0;
  z-index: 1020;
  height: 60px;
  background: var(--nav-bg);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--nav-border);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 20px;
}

.brand-logo-img {
  height: 38px;
  width: auto;
  object-fit: contain;
}

.brand-badge {
  font-size: 11px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  padding: 3px 8px;
  border-radius: 6px;
  background: var(--color-primary-container);
  color: var(--color-primary);
}

/* Hero Balance Card */
.hero-balance-card {
  background: var(--hero-card-bg);
  color: var(--hero-card-text);
  border-radius: 20px;
  padding: 24px;
  box-shadow: var(--hero-card-glow);
  position: relative;
  overflow: hidden;
  margin-bottom: 24px;
  border: 1px solid var(--color-border);
}

.hero-balance-card::before {
  content: '';
  position: absolute;
  top: -50px;
  right: -50px;
  width: 180px;
  height: 180px;
  background: radial-gradient(circle, rgba(242, 122, 26, 0.2) 0%, transparent 70%);
  border-radius: 50%;
  pointer-events: none;
}

.hero-balance-card::after {
  content: '';
  position: absolute;
  bottom: -40px;
  left: 20%;
  width: 140px;
  height: 140px;
  background: radial-gradient(circle, rgba(101, 179, 46, 0.15) 0%, transparent 70%);
  border-radius: 50%;
  pointer-events: none;
}

.hero-label {
  font-size: 13px;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  opacity: 0.8;
  font-weight: 600;
}

.hero-amount {
  font-size: 34px;
  font-weight: 700;
  font-family: var(--font-family-display);
  margin: 6px 0 16px;
}

.metric-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 12px;
  border-top: 1px solid rgba(255, 255, 255, 0.12);
  padding-top: 16px;
}

@media (max-width: 768px) {
  .metric-grid {
    grid-template-columns: repeat(2, 1fr);
    row-gap: 14px;
  }
}

.metric-item .metric-title {
  font-size: 11px;
  opacity: 0.75;
  margin-bottom: 4px;
  text-transform: uppercase;
  font-weight: 600;
}

.metric-item .metric-val {
  font-size: 16px;
  font-weight: 700;
}

.metric-val.bills { color: #FFA726; }
.metric-val.income { color: #4ADE80; }
.metric-val.total { color: #38BDF8; }

/* Base App Cards */
.app-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: 16px;
  padding: 20px;
  box-shadow: var(--card-shadow);
  margin-bottom: 20px;
  transition: background-color var(--transition-speed), border-color var(--transition-speed);
}

.app-card-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 16px;
}

/* Status Badges */
.status-pill {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  padding: 4px 10px;
  border-radius: 20px;
  font-size: 11px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.status-pill.paid {
  background: var(--color-accent-green-container);
  color: var(--color-accent-green);
  border: 1px solid var(--color-accent-green);
}

.status-pill.pending {
  background: var(--color-secondary-container);
  color: var(--color-secondary);
  border: 1px solid var(--color-secondary);
}

.status-pill.partial {
  background: rgba(234, 179, 8, 0.15);
  color: var(--color-warning);
  border: 1px solid var(--color-warning);
}

.status-pill.approved {
  background: var(--color-primary-container);
  color: var(--color-primary);
  border: 1px solid var(--color-primary);
}

/* Buttons */
.btn-brand-primary {
  background-color: var(--color-primary);
  color: var(--color-on-primary);
  border: none;
  border-radius: 12px;
  height: 46px;
  padding: 0 20px;
  font-weight: 600;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  transition: opacity 0.2s, transform 0.1s;
}

.btn-brand-primary:hover {
  opacity: 0.92;
  color: var(--color-on-primary);
}

.btn-brand-primary:active {
  transform: scale(0.98);
}

.btn-brand-secondary {
  background: linear-gradient(135deg, var(--color-secondary) 0%, var(--color-secondary-light) 100%);
  color: #FFFFFF;
  border: none;
  border-radius: 12px;
  height: 46px;
  padding: 0 20px;
  font-weight: 600;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  box-shadow: 0 4px 14px rgba(242, 122, 26, 0.35);
}

.btn-brand-secondary:hover {
  color: #FFFFFF;
  opacity: 0.92;
}

/* Bottom Navigation (Mobile PWA Shell) */
.bottom-nav {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  height: 64px;
  background: var(--nav-bg);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-top: 1px solid var(--nav-border);
  display: flex;
  justify-content: space-around;
  align-items: center;
  z-index: 1030;
  padding-bottom: env(safe-area-inset-bottom, 0);
}

.bottom-nav-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  color: var(--color-text-muted);
  text-decoration: none;
  font-size: 11px;
  font-weight: 600;
  transition: color 0.2s ease;
  width: 20%;
}

.bottom-nav-item i {
  font-size: 20px;
  margin-bottom: 3px;
}

.bottom-nav-item.active {
  color: var(--color-secondary);
}

/* FAB button */
.fab-add {
  width: 52px;
  height: 52px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--color-secondary) 0%, var(--color-secondary-light) 100%);
  color: #FFFFFF;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 24px;
  border: none;
  box-shadow: 0 6px 20px rgba(242, 122, 26, 0.4);
  margin-top: -24px;
  cursor: pointer;
  transition: transform 0.15s ease;
}

.fab-add:active {
  transform: scale(0.92);
}

/* Custom DataTables Styling */
.table-responsive {
  border-radius: 12px;
  overflow: hidden;
}

table.dataTable {
  width: 100% !important;
  margin: 0 !important;
  color: var(--color-text-primary) !important;
  border-color: var(--color-border) !important;
}

table.dataTable thead th {
  background-color: var(--color-surface-container-low) !important;
  color: var(--color-text-secondary) !important;
  border-bottom: 1px solid var(--color-border) !important;
  font-size: 12px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  padding: 12px 14px !important;
}

table.dataTable tbody td {
  padding: 14px !important;
  border-bottom: 1px solid var(--color-border) !important;
  background-color: var(--color-surface) !important;
  color: var(--color-text-primary) !important;
}

.dataTables_wrapper .dataTables_length,
.dataTables_wrapper .dataTables_filter,
.dataTables_wrapper .dataTables_info,
.dataTables_wrapper .dataTables_paginate {
  color: var(--color-text-secondary) !important;
  margin: 12px 0;
}

.dataTables_wrapper .dataTables_filter input,
.dataTables_wrapper .dataTables_length select {
  background: var(--color-surface-container-low);
  border: 1px solid var(--color-border);
  color: var(--color-text-primary);
  border-radius: 8px;
  padding: 6px 12px;
}

/* Modals */
.modal-content {
  background-color: var(--modal-bg) !important;
  color: var(--color-text-primary) !important;
  border: 1px solid var(--color-border) !important;
  border-radius: 20px !important;
  box-shadow: 0 10px 40px rgba(0, 0, 0, 0.5) !important;
}

.modal-header, .modal-footer {
  border-color: var(--color-border) !important;
}

.form-control, .form-select {
  background-color: var(--color-surface-container-low) !important;
  color: var(--color-text-primary) !important;
  border: 1px solid var(--color-border) !important;
  border-radius: 10px !important;
  padding: 10px 14px !important;
}

.form-control:focus, .form-select:focus {
  border-color: var(--color-primary) !important;
  box-shadow: 0 0 0 3px var(--color-primary-container) !important;
}

/* PIN Keypad & Input */
.pin-display-group {
  display: flex;
  justify-content: center;
  gap: 12px;
  margin: 20px 0;
}

.pin-digit-box {
  width: 48px;
  height: 56px;
  font-size: 28px;
  font-weight: 700;
  text-align: center;
  border-radius: 12px;
  border: 2px solid var(--color-border);
  background: var(--color-surface-container-low);
  color: var(--color-text-primary);
  caret-color: transparent;
  transition: border-color 0.2s;
}

.pin-digit-box:focus {
  border-color: var(--color-secondary);
  outline: none;
}

/* PWA Update Banner & Forced Gate */
#pwa-update-banner {
  position: fixed;
  top: 68px;
  left: 20px;
  right: 20px;
  max-width: 500px;
  margin: 0 auto;
  background: var(--color-surface);
  border: 1px solid var(--color-secondary);
  border-radius: 14px;
  padding: 14px 18px;
  display: none;
  align-items: center;
  justify-content: space-between;
  box-shadow: 0 6px 24px rgba(0, 0, 0, 0.3);
  z-index: 1050;
}

#pwa-major-update-modal {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(7, 13, 20, 0.95);
  backdrop-filter: blur(16px);
  z-index: 9999;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 24px;
  text-align: center;
}