/* Church Finance Web Application - CSS Design System */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700&family=Noto+Sans+KR:wght@300;400;500;700&display=swap');

:root {
  /* Dark Theme Tokens (Default) */
  --bg-main: #0b0f19;
  --bg-card: rgba(22, 30, 49, 0.7);
  --bg-card-solid: #161e31;
  --bg-input: #1e293b;
  --border-color: rgba(255, 255, 255, 0.08);
  --border-color-active: rgba(1, 156, 176, 0.5);
  --text-main: #f8fafc;
  --text-muted: #94a3b8;
  --text-inverse: #ffffff;
  
  /* Primary & Accent Colors */
  --primary: #019cb0; /* Teal Brand Color */
  --primary-hover: #008394;
  --primary-glow: rgba(1, 156, 176, 0.15);
  --accent: #00bcd4; /* Cyan Accent */
  --success: #10b981; /* Emerald */
  --warning: #f59e0b; /* Amber */
  --danger: #ef4444; /* Rose */
  
  --sidebar-width: 260px;
  --glass-blur: 16px;
  --shadow-lg: 0 10px 25px -5px rgba(0, 0, 0, 0.3), 0 8px 10px -6px rgba(0, 0, 0, 0.3);
  --transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
  --font-sans: 'Inter', 'Noto Sans KR', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
}

/* Light Theme Overrides (if toggled) */
[data-theme="light"] {
  --bg-main: #f8fafc;
  --bg-card: rgba(255, 255, 255, 0.75);
  --bg-card-solid: #ffffff;
  --bg-input: #f1f5f9;
  --border-color: rgba(15, 23, 42, 0.08);
  --border-color-active: rgba(1, 156, 176, 0.5);
  --text-main: #0f172a;
  --text-muted: #64748b;
  --text-inverse: #ffffff;
  --shadow-lg: 0 10px 25px -5px rgba(0, 0, 0, 0.05), 0 8px 10px -6px rgba(0, 0, 0, 0.05);
}

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

body {
  font-family: var(--font-sans);
  background-color: var(--bg-main);
  color: var(--text-main);
  min-height: 100vh;
  display: flex;
  overflow: hidden;
  transition: background-color 0.3s ease;
}

/* Scrollbar */
::-webkit-scrollbar {
  width: 8px;
  height: 8px;
}
::-webkit-scrollbar-track {
  background: transparent;
}
::-webkit-scrollbar-thumb {
  background: var(--bg-input);
  border-radius: 4px;
}
::-webkit-scrollbar-thumb:hover {
  background: var(--text-muted);
}

/* Layout */
.app-container {
  display: flex;
  width: 100%;
  height: 100vh;
  position: relative;
}

/* Sidebar Navigation */
.sidebar {
  width: var(--sidebar-width);
  background-color: var(--bg-card-solid);
  border-right: 1px solid var(--border-color);
  display: flex;
  flex-direction: column;
  padding: 2rem 1.5rem;
  z-index: 10;
  transition: var(--transition);
}

.logo-container {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  margin-bottom: 3rem;
}

.logo-icon {
  width: 38px;
  height: 38px;
  background: linear-gradient(135deg, var(--primary), var(--accent));
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  font-weight: 700;
  font-size: 1.25rem;
  box-shadow: 0 4px 12px rgba(1, 156, 176, 0.3);
}

.logo-text {
  font-weight: 700;
  font-size: 1.15rem;
  letter-spacing: -0.025em;
  background: linear-gradient(135deg, var(--text-main), var(--text-muted));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.nav-menu {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  flex-grow: 1;
}

.nav-item a {
  display: flex;
  align-items: center;
  gap: 1rem;
  padding: 0.85rem 1rem;
  color: var(--text-muted);
  text-decoration: none;
  font-weight: 500;
  border-radius: 10px;
  transition: var(--transition);
  cursor: pointer;
}

.nav-item a:hover, .nav-item.active a {
  color: var(--text-main);
  background-color: var(--bg-input);
}

.nav-item.active a {
  border-left: 3px solid var(--primary);
  background: linear-gradient(90deg, var(--primary-glow), transparent);
}

.nav-icon {
  font-size: 1.25rem;
  width: 20px;
  text-align: center;
}

.user-profile-section {
  border-top: 1px solid var(--border-color);
  padding-top: 1.5rem;
  margin-top: auto;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.user-info {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.user-avatar {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: var(--bg-input);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 600;
  color: var(--primary);
  border: 1px solid var(--border-color);
}

.user-details {
  display: flex;
  flex-direction: column;
}

.username-display {
  font-weight: 600;
  font-size: 0.9rem;
}

.role-badge {
  font-size: 0.75rem;
  color: var(--text-muted);
  text-transform: capitalize;
}

.btn-logout {
  background: transparent;
  border: 1px solid var(--border-color);
  color: var(--danger);
  padding: 0.5rem 1rem;
  border-radius: 8px;
  cursor: pointer;
  font-weight: 500;
  font-size: 0.85rem;
  transition: var(--transition);
}

.btn-logout:hover {
  background: rgba(239, 68, 68, 0.1);
  border-color: var(--danger);
}

/* Main Content Area */
.main-content {
  flex-grow: 1;
  padding: 2.5rem;
  overflow-y: auto;
  position: relative;
  height: 100vh;
}

/* Views (Tabs) */
.view-section {
  display: none;
  animation: fadeIn 0.4s ease-out forwards;
}

.view-section.active {
  display: block;
}

@keyframes fadeIn {
  from { opacity: 0; transform: translateY(10px); }
  to { opacity: 1; transform: translateY(0); }
}

/* Typography & Layout Headers */
.header-container {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 2rem;
}

.page-title {
  font-size: 1.75rem;
  font-weight: 700;
  letter-spacing: -0.02em;
}

.page-subtitle {
  color: var(--text-muted);
  font-size: 0.95rem;
  margin-top: 0.25rem;
}

/* Cards & Containers */
.glass-card {
  background: var(--bg-card);
  backdrop-filter: blur(var(--glass-blur));
  -webkit-backdrop-filter: blur(var(--glass-blur));
  border: 1px solid var(--border-color);
  border-radius: 16px;
  padding: 1.75rem;
  box-shadow: var(--shadow-lg);
  margin-bottom: 1.5rem;
}

/* Metrics Dashboard Grid */
.metrics-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 1.5rem;
  margin-bottom: 2rem;
}

.metric-card {
  display: flex;
  flex-direction: column;
  padding: 1.5rem;
}

.metric-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  color: var(--text-muted);
  font-weight: 500;
  font-size: 0.9rem;
  margin-bottom: 0.75rem;
}

.metric-icon {
  font-size: 1.25rem;
  color: var(--primary);
}

.metric-value {
  font-size: 1.85rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  margin-bottom: 0.25rem;
}

.metric-footer {
  font-size: 0.8rem;
  color: var(--success);
}

/* Charts Grid */
.charts-grid {
  display: grid;
  grid-template-columns: 2fr 1fr;
  gap: 1.5rem;
  margin-bottom: 1.5rem;
}

@media (max-width: 1024px) {
  .charts-grid {
    grid-template-columns: 1fr;
  }
}

.chart-container {
  position: relative;
  height: 320px;
  width: 100%;
}

/* Form Styles & Inputs */
.form-group {
  margin-bottom: 1.25rem;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

label {
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--text-main);
}

input, select, textarea {
  width: 100%;
  padding: 0.75rem 1rem;
  border-radius: 8px;
  background-color: var(--bg-input);
  border: 1px solid var(--border-color);
  color: var(--text-main);
  font-family: var(--font-sans);
  font-size: 0.95rem;
  outline: none;
  transition: var(--transition);
}

input:focus, select:focus, textarea:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 3px var(--primary-glow);
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.75rem 1.25rem;
  border-radius: 8px;
  font-weight: 500;
  font-size: 0.95rem;
  cursor: pointer;
  border: none;
  transition: var(--transition);
}

.btn-primary {
  background-color: var(--primary);
  color: var(--text-inverse);
}

.btn-primary:hover {
  background-color: var(--primary-hover);
}

.btn-secondary {
  background-color: var(--bg-input);
  color: var(--text-main);
  border: 1px solid var(--border-color);
}

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

.btn-danger {
  background-color: var(--danger);
  color: #fff;
}

.btn-danger:hover {
  filter: brightness(0.9);
}

/* Login Page Overlay */
.login-overlay {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background-color: var(--bg-main);
  z-index: 100;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1.5rem;
  transition: var(--transition);
}

.login-card {
  width: 100%;
  max-width: 420px;
  padding: 2.5rem;
  border-radius: 20px;
}

/* Spreadsheet Batch-Entry Grid Style */
.batch-container {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.batch-controls {
  display: flex;
  gap: 1rem;
  align-items: center;
  flex-wrap: wrap;
  margin-bottom: 1rem;
}

.batch-table-wrapper {
  overflow-x: auto;
  border: 1px solid var(--border-color);
  border-radius: 12px;
  background-color: var(--bg-card-solid);
}

.batch-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.95rem;
  text-align: left;
}

.batch-table th {
  background-color: rgba(255, 255, 255, 0.02);
  padding: 1rem;
  font-weight: 600;
  border-bottom: 1px solid var(--border-color);
  color: var(--text-muted);
}

.batch-table td {
  padding: 0.5rem 0.75rem;
  border-bottom: 1px solid var(--border-color);
  vertical-align: middle;
}

.batch-table tr:hover {
  background-color: rgba(255, 255, 255, 0.01);
}

/* Custom Grid Inputs inside Table */
.batch-table input, .batch-table select {
  padding: 0.5rem 0.75rem;
  background: transparent;
  border: 1px solid transparent;
  border-radius: 4px;
}

.batch-table input:focus, .batch-table select:focus {
  background: var(--bg-input);
  border-color: var(--primary);
}

/* Autocomplete Suggestion Dropdown */
.autocomplete-container {
  position: relative;
  width: 100%;
}

.autocomplete-dropdown {
  position: absolute;
  top: 100%;
  left: 0;
  right: 0;
  background: var(--bg-card-solid);
  border: 1px solid var(--border-color);
  border-radius: 8px;
  z-index: 1000;
  max-height: 200px;
  overflow-y: auto;
  box-shadow: var(--shadow-lg);
  margin-top: 4px;
}

.autocomplete-item {
  padding: 0.6rem 1rem;
  cursor: pointer;
  transition: var(--transition);
}

.autocomplete-item:hover, .autocomplete-item.active {
  background-color: var(--bg-input);
  color: var(--primary);
}

.new-giver-badge {
  font-size: 0.75rem;
  background: rgba(245, 158, 11, 0.15);
  color: var(--warning);
  padding: 0.15rem 0.4rem;
  border-radius: 4px;
  display: inline-block;
  margin-top: 4px;
}

/* Running Totals Bottom Sticky Bar */
.totals-summary-bar {
  background: var(--bg-card-solid);
  border: 1px solid var(--border-color);
  border-radius: 12px;
  padding: 1.25rem 1.75rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 1.5rem;
  margin-top: 1.5rem;
  box-shadow: var(--shadow-lg);
}

.totals-group {
  display: flex;
  gap: 2rem;
  flex-wrap: wrap;
}

.total-item {
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
}

.total-label {
  font-size: 0.8rem;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.total-val {
  font-size: 1.35rem;
  font-weight: 700;
  color: var(--success);
}

/* Table Actions (Archive, Edit) */
.table-action-btn {
  background: transparent;
  border: none;
  color: var(--text-muted);
  cursor: pointer;
  padding: 0.25rem 0.5rem;
  border-radius: 4px;
  font-size: 1rem;
  transition: var(--transition);
}

.table-action-btn:hover {
  color: var(--primary);
  background-color: var(--bg-input);
}

.table-action-btn.delete:hover {
  color: var(--danger);
  background-color: rgba(239, 68, 68, 0.1);
}

/* General Layout Tables (Givers, Settings) */
.data-table {
  width: 100%;
  border-collapse: collapse;
  margin-top: 1rem;
}

.data-table th, .data-table td {
  padding: 1rem;
  text-align: left;
  border-bottom: 1px solid var(--border-color);
}

.data-table th {
  color: var(--text-muted);
  font-weight: 600;
}

.data-table tr:hover {
  background-color: rgba(255, 255, 255, 0.01);
}

/* Flex Utilities */
.flex-row-between {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 1rem;
}

.badge {
  display: inline-block;
  padding: 0.25rem 0.5rem;
  border-radius: 6px;
  font-size: 0.75rem;
  font-weight: 600;
}

.badge-success { background: rgba(16, 185, 129, 0.15); color: var(--success); }
.badge-secondary { background: rgba(148, 163, 184, 0.15); color: var(--text-muted); }

/* Theme Toggle Button */
.theme-toggle-btn {
  background: transparent;
  border: 1px solid var(--border-color);
  color: var(--text-main);
  padding: 0.5rem;
  border-radius: 8px;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.15rem;
  transition: var(--transition);
}

.theme-toggle-btn:hover {
  background: var(--bg-input);
}

/* Form Layouts */
.grid-form {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 1rem;
}

.settings-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 2rem;
}

@media (max-width: 768px) {
  .settings-grid {
    grid-template-columns: 1fr;
  }
  .sidebar {
    width: 60px;
    padding: 2rem 0.5rem;
    align-items: center;
  }
  .logo-text, .nav-text, .user-details, .btn-logout span {
    display: none;
  }
  .logo-container {
    margin-bottom: 2rem;
    justify-content: center;
  }
  .nav-item a {
    justify-content: center;
    padding: 0.85rem;
  }
}