/* 
   PESCO Bill Analyzer - Premium Styling
   Design System: Glassmorphism, Neon Accents, Dark/Light responsive tones, Print Optimization
*/

@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700&family=Outfit:wght@400;500;600;700;800&family=Noto+Sans+Arabic:wght@400;600;700&display=swap');

:root {
  --bg-primary: #0b0f19;
  --bg-secondary: #111827;
  --card-bg: rgba(17, 24, 39, 0.7);
  --card-bg-hover: rgba(31, 41, 55, 0.85);
  --border-color: rgba(255, 255, 255, 0.08);
  --border-color-glow: rgba(16, 185, 129, 0.2);
  
  /* HSL Tailored Brand Colors */
  --color-primary: #10b981; /* Jade Green for Electricity Cost */
  --color-primary-glow: rgba(16, 185, 129, 0.35);
  --color-tax: #f59e0b; /* Amber Orange for Government Taxes */
  --color-tax-glow: rgba(245, 158, 11, 0.35);
  --color-accent: #3b82f6; /* Blue for Information & FPA */
  --color-accent-glow: rgba(59, 130, 246, 0.35);
  --color-danger: #ef4444; /* Red for overdue/warnings */
  --color-danger-glow: rgba(239, 68, 68, 0.35);
  
  /* Text Tones */
  --text-main: #f3f4f6;
  --text-muted: #9ca3af;
  --text-dark: #1f2937;
  
  /* Typography */
  --font-display: 'Outfit', 'Inter', sans-serif;
  --font-sans: 'Inter', sans-serif;
  --font-arabic: 'Noto Sans Arabic', sans-serif;
  
  --shadow-main: 0 8px 32px 0 rgba(0, 0, 0, 0.5);
  --blur-radius: 12px;
  --transition-smooth: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  --border-radius: 16px;
}

/* Base resets & styling */
* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

body {
  background-color: var(--bg-primary);
  background-image: 
    radial-gradient(circle at 10% 20%, rgba(16, 185, 129, 0.08) 0%, transparent 40%),
    radial-gradient(circle at 90% 80%, rgba(245, 158, 11, 0.08) 0%, transparent 40%),
    radial-gradient(circle at 50% 50%, rgba(59, 130, 246, 0.05) 0%, transparent 50%);
  background-attachment: fixed;
  color: var(--text-main);
  font-family: var(--font-sans);
  min-height: 100vh;
  line-height: 1.6;
  overflow-x: hidden;
  padding: 2rem 1rem;
}

.container {
  max-width: 1200px;
  margin: 0 auto;
}

/* Dynamic design and elements */
header {
  text-align: center;
  margin-bottom: 3rem;
  animation: fadeInDown 0.8s ease-out;
}

.logo-container {
  display: inline-flex;
  align-items: center;
  gap: 0.75rem;
  background: var(--card-bg);
  border: 1px solid var(--border-color);
  padding: 0.5rem 1.5rem;
  border-radius: 50px;
  backdrop-filter: blur(var(--blur-radius));
  margin-bottom: 1.5rem;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.2);
}

.logo-icon {
  font-size: 1.5rem;
  color: var(--color-primary);
  animation: pulseGlow 2s infinite alternate;
}

.logo-text {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.1rem;
  letter-spacing: 0.05em;
  background: linear-gradient(135deg, #ffffff 40%, var(--color-primary) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

h1 {
  font-family: var(--font-display);
  font-size: 2.75rem;
  font-weight: 800;
  letter-spacing: -0.02em;
  margin-bottom: 0.5rem;
  background: linear-gradient(to right, #ffffff, #e2e8f0, #94a3b8);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.subtitle {
  color: var(--text-muted);
  font-size: 1.1rem;
  max-width: 600px;
  margin: 0 auto;
}

/* Glassmorphism Cards */
.card {
  background: var(--card-bg);
  border: 1px solid var(--border-color);
  border-radius: var(--border-radius);
  backdrop-filter: blur(var(--blur-radius));
  -webkit-backdrop-filter: blur(var(--blur-radius));
  padding: 2rem;
  box-shadow: var(--shadow-main);
  transition: var(--transition-smooth);
}

.card:hover {
  border-color: rgba(255, 255, 255, 0.15);
  box-shadow: 0 12px 40px 0 rgba(0, 0, 0, 0.6);
}

/* Search Box Container */
.search-container {
  max-width: 650px;
  margin: 0 auto 3rem auto;
  animation: fadeInUp 0.8s ease-out;
}

.search-box {
  display: flex;
  position: relative;
  background: rgba(17, 24, 39, 0.8);
  border: 2px solid var(--border-color);
  border-radius: 50px;
  padding: 0.35rem;
  transition: var(--transition-smooth);
  box-shadow: 0 4px 30px rgba(0, 0, 0, 0.4);
}

.search-box:focus-within {
  border-color: var(--color-primary);
  box-shadow: 0 0 20px var(--border-color-glow);
}

.search-icon-inside {
  position: absolute;
  left: 1.25rem;
  top: 50%;
  transform: translateY(-50%);
  color: var(--text-muted);
  font-size: 1.2rem;
  pointer-events: none;
}

.search-input {
  flex: 1;
  background: transparent;
  border: none;
  outline: none;
  color: #ffffff;
  font-size: 1.15rem;
  font-family: var(--font-sans);
  padding: 0.75rem 1rem 0.75rem 3.5rem;
  font-weight: 500;
  letter-spacing: 0.05em;
}

.search-input::placeholder {
  color: #4b5563;
  letter-spacing: 0;
}

.suffix-select {
  background: transparent;
  border: none;
  border-left: 1px solid rgba(255, 255, 255, 0.15);
  color: #ffffff;
  font-family: var(--font-sans);
  font-size: 1rem;
  font-weight: 600;
  padding: 0 1.75rem 0 1rem;
  outline: none;
  cursor: pointer;
  margin-right: 0.5rem;
  appearance: none;
  -webkit-appearance: none;
  background-image: url("data:image/svg+xml;utf8,<svg fill='white' height='24' viewBox='0 0 24 24' width='24' xmlns='http://www.w3.org/2000/svg'><path d='M7 10l5 5 5-5z'/><path d='M0 0h24v24H0z' fill='none'/></svg>");
  background-repeat: no-repeat;
  background-position: right 0.25rem center;
  background-size: 1.2rem;
}

.suffix-select option {
  background-color: var(--bg-secondary);
  color: #ffffff;
  font-weight: 500;
}

.search-btn {
  background: linear-gradient(135deg, var(--color-primary) 0%, #059669 100%);
  border: none;
  outline: none;
  color: #0b0f19;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1rem;
  padding: 0 2rem;
  border-radius: 50px;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  transition: var(--transition-smooth);
}

.search-btn:hover {
  transform: translateY(-1px);
  box-shadow: 0 4px 15px rgba(16, 185, 129, 0.4);
  filter: brightness(1.1);
}

.search-btn:active {
  transform: translateY(1px);
}

/* History / Recent Reference Numbers */
.recent-searches {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.5rem;
  margin-top: 1rem;
  padding: 0 1rem;
  font-size: 0.85rem;
}

.recent-searches span {
  color: var(--text-muted);
}

.recent-tag {
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid var(--border-color);
  color: var(--text-main);
  padding: 0.25rem 0.75rem;
  border-radius: 20px;
  cursor: pointer;
  transition: var(--transition-smooth);
}

.recent-tag:hover {
  background: var(--border-color-glow);
  border-color: var(--color-primary);
  color: var(--color-primary);
}

/* Loader Styling */
.loader-wrapper {
  display: none;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 4rem 2rem;
  animation: fadeIn 0.4s ease-out;
}

.spinner {
  width: 55px;
  height: 55px;
  border: 4px solid rgba(255, 255, 255, 0.05);
  border-top-color: var(--color-primary);
  border-radius: 50%;
  animation: spin 1s linear infinite;
  margin-bottom: 1.5rem;
  box-shadow: 0 0 15px rgba(16, 185, 129, 0.1);
}

.loader-text {
  font-family: var(--font-display);
  font-size: 1.15rem;
  color: var(--text-main);
  letter-spacing: 0.02em;
}

/* Error banner */
.error-container {
  display: none;
  background: rgba(239, 68, 68, 0.1);
  border: 1px solid rgba(239, 68, 68, 0.25);
  border-radius: var(--border-radius);
  padding: 1.25rem;
  margin-bottom: 2rem;
  align-items: center;
  gap: 1rem;
  animation: shake 0.5s cubic-bezier(.36,.07,.19,.97) both;
}

.error-icon {
  font-size: 1.5rem;
  color: var(--color-danger);
}

.error-msg {
  font-size: 0.95rem;
  color: #fca5a5;
  flex: 1;
}

.retry-btn {
  background: linear-gradient(135deg, var(--color-danger) 0%, #dc2626 100%);
  border: none;
  outline: none;
  color: #ffffff;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 0.85rem;
  padding: 0.5rem 1.25rem;
  border-radius: 50px;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  transition: var(--transition-smooth);
  white-space: nowrap;
  flex-shrink: 0;
}

.retry-btn:hover {
  transform: translateY(-1px);
  box-shadow: 0 4px 15px rgba(239, 68, 68, 0.4);
  filter: brightness(1.15);
}

.retry-btn:active {
  transform: translateY(1px);
}

/* Main Dashboard UI */
.dashboard-grid {
  display: none;
  grid-template-columns: 1fr;
  gap: 1.5rem;
  margin-top: 1.5rem;
  animation: fadeInUp 0.8s cubic-bezier(0.16, 1, 0.3, 1);
}

/* Large dashboard cards */
@media(min-width: 1024px) {
  .dashboard-grid {
    grid-template-columns: 2fr 1fr;
  }
  .full-width-cell {
    grid-column: span 2;
  }
}

/* Overview Banner Grid */
.overview-cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 1rem;
  margin-bottom: 1.5rem;
}

.mini-card {
  background: rgba(255, 255, 255, 0.02);
  border: 1px solid var(--border-color);
  border-radius: 12px;
  padding: 1.25rem;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  transition: var(--transition-smooth);
}

.mini-card:hover {
  background: rgba(255, 255, 255, 0.04);
  transform: translateY(-2px);
}

.mini-card .label {
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--text-muted);
  font-weight: 600;
  margin-bottom: 0.5rem;
}

.mini-card .val {
  font-family: var(--font-display);
  font-size: 1.25rem;
  font-weight: 700;
  color: #ffffff;
}

.mini-card.highlight-payable {
  background: rgba(16, 185, 129, 0.05);
  border-color: rgba(16, 185, 129, 0.2);
}

.mini-card.highlight-payable .val {
  color: var(--color-primary);
  font-size: 1.5rem;
}

.mini-card.highlight-danger {
  background: rgba(239, 68, 68, 0.04);
  border-color: rgba(239, 68, 68, 0.2);
}

.mini-card.highlight-danger .val {
  color: var(--color-danger);
}

/* Comparative Tax Calculator Visual Panel (CRITICAL REQUIREMENT) */
.comparison-panel {
  background: radial-gradient(circle at 100% 0%, rgba(245, 158, 11, 0.1) 0%, transparent 60%), rgba(17, 24, 39, 0.75);
  border: 1px solid rgba(255, 255, 255, 0.08);
}

.comparison-layout {
  display: flex;
  flex-direction: column;
  gap: 2rem;
}

@media(min-width: 768px) {
  .comparison-layout {
    flex-direction: row;
    align-items: center;
  }
}

.chart-gauge-container {
  flex-shrink: 0;
  display: flex;
  justify-content: center;
  align-items: center;
  position: relative;
  width: 220px;
  height: 220px;
  margin: 0 auto;
}

.tax-pie-svg {
  width: 100%;
  height: 100%;
  transform: rotate(-90deg);
}

.gauge-bg {
  fill: none;
  stroke: rgba(255, 255, 255, 0.03);
  stroke-width: 18;
}

.gauge-val-electricity {
  fill: none;
  stroke: var(--color-primary);
  stroke-width: 18;
  stroke-dasharray: 565.48; /* 2 * PI * 90 */
  stroke-dashoffset: 565.48;
  stroke-linecap: round;
  transition: stroke-dashoffset 1.5s cubic-bezier(0.16, 1, 0.3, 1);
  filter: drop-shadow(0 0 6px var(--color-primary-glow));
}

.gauge-val-tax {
  fill: none;
  stroke: var(--color-tax);
  stroke-width: 18;
  stroke-dasharray: 565.48;
  stroke-dashoffset: 565.48;
  stroke-linecap: round;
  transition: stroke-dashoffset 1.5s cubic-bezier(0.16, 1, 0.3, 1);
  filter: drop-shadow(0 0 6px var(--color-tax-glow));
}

.gauge-center-text {
  position: absolute;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  font-family: var(--font-display);
}

.gauge-center-text .pct {
  font-size: 2.2rem;
  font-weight: 800;
  line-height: 1.1;
  color: var(--color-tax);
}

.gauge-center-text .lbl {
  font-size: 0.75rem;
  text-transform: uppercase;
  color: var(--text-muted);
  letter-spacing: 0.1em;
  margin-top: 0.25rem;
  text-align: center;
}

.comparison-details {
  flex: 1;
}

.comparison-headline {
  font-family: var(--font-display);
  font-size: 1.45rem;
  font-weight: 700;
  margin-bottom: 1.25rem;
  line-height: 1.4;
  background: linear-gradient(135deg, #ffffff 40%, #e2e8f0 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.comparison-headline span.tax-highlight {
  color: var(--color-tax);
  -webkit-text-fill-color: initial;
  background: none;
}

.comparison-headline span.elec-highlight {
  color: var(--color-primary);
  -webkit-text-fill-color: initial;
  background: none;
}

/* Horizontal Side-by-Side Split Progress Bar */
.split-progress-container {
  display: flex;
  height: 20px;
  border-radius: 10px;
  overflow: hidden;
  background: rgba(255, 255, 255, 0.05);
  margin-bottom: 1.5rem;
  border: 1px solid var(--border-color);
}

.split-progress-bar {
  height: 100%;
  transition: width 1.2s cubic-bezier(0.16, 1, 0.3, 1);
}

.split-progress-bar.electricity {
  background: linear-gradient(to right, #059669, var(--color-primary));
  box-shadow: 0 0 10px rgba(16, 185, 129, 0.2);
}

.split-progress-bar.tax {
  background: linear-gradient(to right, var(--color-tax), #d97706);
  box-shadow: 0 0 10px rgba(245, 158, 11, 0.2);
}

/* Stats Comparison Grid */
.stats-comp-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1rem;
}

@media(min-width: 480px) {
  .stats-comp-grid {
    grid-template-columns: 1fr 1fr;
  }
}

.comp-legend-card {
  background: rgba(255, 255, 255, 0.015);
  border: 1px solid var(--border-color);
  padding: 1rem;
  border-radius: 12px;
  position: relative;
  overflow: hidden;
}

.comp-legend-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 4px;
  height: 100%;
}

.comp-legend-card.electricity::before {
  background-color: var(--color-primary);
}

.comp-legend-card.tax::before {
  background-color: var(--color-tax);
}

.legend-title-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  color: var(--text-muted);
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: 0.25rem;
}

.legend-title-row strong {
  color: var(--text-main);
  font-size: 0.85rem;
}

.legend-amount {
  font-family: var(--font-display);
  font-size: 1.6rem;
  font-weight: 800;
  line-height: 1.2;
}

.electricity .legend-amount {
  color: var(--color-primary);
}

.tax .legend-amount {
  color: var(--color-tax);
}

.legend-desc {
  font-size: 0.75rem;
  color: var(--text-muted);
  margin-top: 0.25rem;
}

/* Details Section Panels */
.section-title {
  font-family: var(--font-display);
  font-size: 1.25rem;
  font-weight: 700;
  margin-bottom: 1.25rem;
  display: flex;
  align-items: center;
  gap: 0.5rem;
  border-bottom: 1px solid var(--border-color);
  padding-bottom: 0.5rem;
}

.section-title i {
  color: var(--color-primary);
}

.details-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.5rem;
}

@media(min-width: 768px) {
  .details-grid {
    grid-template-columns: 1fr 1fr;
  }
}

/* Beautiful custom tables */
.data-table-wrapper {
  overflow-x: auto;
}

.data-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.9rem;
  text-align: left;
}

.data-table th {
  padding: 0.75rem 1rem;
  color: var(--text-muted);
  font-weight: 600;
  border-bottom: 1px solid var(--border-color);
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.data-table td {
  padding: 0.85rem 1rem;
  border-bottom: 1px solid rgba(255, 255, 255, 0.03);
  color: var(--text-main);
}

.data-table tr:last-child td {
  border-bottom: none;
}

.data-table tr.total-row td {
  border-top: 1.5px solid var(--border-color);
  font-weight: 700;
  font-size: 0.95rem;
}

.data-table tr.total-row.electricity td {
  color: var(--color-primary);
}

.data-table tr.total-row.tax td {
  color: var(--color-tax);
}

.item-desc-sub {
  display: block;
  font-size: 0.75rem;
  color: var(--text-muted);
  margin-top: 0.15rem;
}

/* Consumer Info Data Grid */
.info-data-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 1rem;
}

.info-item {
  border-bottom: 1px solid rgba(255, 255, 255, 0.03);
  padding-bottom: 0.75rem;
}

.info-item .label {
  font-size: 0.75rem;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: 0.15rem;
}

.info-item .val {
  font-weight: 600;
  color: #ffffff;
}

/* Unit calculation statement */
.unit-calc-statement {
  background: rgba(59, 130, 246, 0.05);
  border: 1px dashed rgba(59, 130, 246, 0.25);
  border-radius: 10px;
  padding: 1rem;
  font-size: 0.85rem;
  color: #93c5fd;
  display: flex;
  align-items: flex-start;
  gap: 0.75rem;
  margin-top: 1.5rem;
}

.unit-calc-statement i {
  color: var(--color-accent);
  font-size: 1.1rem;
  margin-top: 0.1rem;
}

.unit-calc-statement strong {
  color: #ffffff;
}

/* History Chart Visual Grid */
.history-chart-wrapper {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

.bar-chart-container {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  height: 180px;
  padding-top: 1rem;
  border-bottom: 2px solid var(--border-color);
  margin-bottom: 0.5rem;
}

.chart-bar-group {
  display: flex;
  flex-direction: column;
  align-items: center;
  flex: 1;
  height: 100%;
  justify-content: flex-end;
  padding: 0 4px;
}

.chart-bar-hover-val {
  opacity: 0;
  font-size: 0.7rem;
  font-weight: 700;
  color: var(--color-accent);
  margin-bottom: 4px;
  transition: var(--transition-smooth);
  pointer-events: none;
  transform: translateY(4px);
}

.chart-bar-group:hover .chart-bar-hover-val {
  opacity: 1;
  transform: translateY(0);
}

.chart-bar {
  width: 100%;
  max-width: 24px;
  background: linear-gradient(to top, rgba(59, 130, 246, 0.3), var(--color-accent));
  border-radius: 4px 4px 0 0;
  transition: height 1s ease-out;
  cursor: pointer;
  position: relative;
  box-shadow: 0 0 10px rgba(59, 130, 246, 0.1);
}

.chart-bar:hover {
  background: linear-gradient(to top, rgba(16, 185, 129, 0.4), var(--color-primary));
  box-shadow: 0 0 15px rgba(16, 185, 129, 0.3);
}

.chart-label {
  font-size: 0.7rem;
  color: var(--text-muted);
  margin-top: 6px;
  font-weight: 500;
}

/* Actions Section */
.actions-row {
  display: flex;
  justify-content: center;
  gap: 1rem;
  flex-wrap: wrap;
  margin-top: 2rem;
  animation: fadeInUp 1s ease-out;
}

.action-btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.75rem 1.5rem;
  border-radius: 10px;
  font-family: var(--font-display);
  font-weight: 600;
  cursor: pointer;
  transition: var(--transition-smooth);
}

.action-btn.btn-print {
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid var(--border-color);
  color: #ffffff;
}

.action-btn.btn-print:hover {
  background: rgba(255, 255, 255, 0.1);
  border-color: var(--text-muted);
}

.action-btn.btn-reset {
  background: transparent;
  border: 1px dashed rgba(255, 255, 255, 0.15);
  color: var(--text-muted);
}

.action-btn.btn-reset:hover {
  border-color: var(--color-danger);
  color: var(--color-danger);
  background: rgba(239, 68, 68, 0.05);
}

/* Info Alert Info Card */
.info-alert {
  background: rgba(245, 158, 11, 0.04);
  border: 1px solid rgba(245, 158, 11, 0.15);
  border-radius: var(--border-radius);
  padding: 1.5rem;
  margin-top: 3rem;
  display: flex;
  gap: 1rem;
  animation: fadeIn 1s ease-out;
}

.info-alert i {
  color: var(--color-tax);
  font-size: 1.4rem;
  margin-top: 0.1rem;
}

.info-alert-text h4 {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.05rem;
  margin-bottom: 0.25rem;
  color: var(--color-tax);
}

.info-alert-text p {
  font-size: 0.9rem;
  color: var(--text-muted);
  line-height: 1.5;
}

/* Footer Section */
footer.app-footer {
  text-align: center;
  margin-top: 5rem;
  color: var(--text-muted);
  font-size: 0.85rem;
  border-top: 1px solid var(--border-color);
  padding-top: 2rem;
}

footer.app-footer a {
  color: var(--color-primary);
  text-decoration: none;
  transition: var(--transition-smooth);
}

footer.app-footer a:hover {
  text-decoration: underline;
  color: #059669;
}

/* Keyframes animations */
@keyframes spin {
  0% { transform: rotate(0deg); }
  100% { transform: rotate(360deg); }
}

@keyframes fadeIn {
  from { opacity: 0; }
  to { opacity: 1; }
}

@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes fadeInDown {
  from {
    opacity: 0;
    transform: translateY(-20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes pulseGlow {
  0% {
    filter: drop-shadow(0 0 2px var(--color-primary-glow));
  }
  100% {
    filter: drop-shadow(0 0 12px var(--color-primary));
  }
}

@keyframes shake {
  10%, 90% { transform: translate3d(-1px, 0, 0); }
  20%, 80% { transform: translate3d(2px, 0, 0); }
  30%, 50%, 70% { transform: translate3d(-4px, 0, 0); }
  40%, 60% { transform: translate3d(4px, 0, 0); }
}

/* Print Styling (A4 Portrait Optimization) */
@media print {
  body {
    background: #ffffff !important;
    color: #000000 !important;
    padding: 0 !important;
    font-size: 10pt !important;
  }
  
  .container {
    max-width: 100% !important;
    width: 100% !important;
    margin: 0 !important;
    padding: 0 !important;
  }
  
  header, 
  .search-container, 
  .actions-row, 
  .info-alert, 
  .app-footer,
  .chart-gauge-container,
  .recent-searches {
    display: none !important;
  }
  
  .dashboard-grid {
    display: block !important;
    margin: 0 !important;
    padding: 0 !important;
  }
  
  .card {
    background: transparent !important;
    border: none !important;
    box-shadow: none !important;
    padding: 10px 0 !important;
    backdrop-filter: none !important;
    page-break-inside: avoid;
  }
  
  .mini-card {
    background: transparent !important;
    border: 1px solid #ddd !important;
    color: #000000 !important;
    padding: 8px !important;
  }
  
  .mini-card .val {
    color: #000000 !important;
  }
  
  .comparison-panel {
    background: transparent !important;
    border: 2px solid #000 !important;
    padding: 15px !important;
  }
  
  .split-progress-container {
    border: 1px solid #000 !important;
  }
  
  .split-progress-bar.electricity {
    background: #555 !important;
  }
  
  .split-progress-bar.tax {
    background: #aaa !important;
  }
  
  .comp-legend-card {
    background: transparent !important;
    border: 1px solid #ddd !important;
  }
  
  .electricity .legend-amount,
  .tax .legend-amount {
    color: #000000 !important;
  }
  
  .data-table th {
    color: #000000 !important;
    border-bottom: 2px solid #000 !important;
  }
  
  .data-table td {
    color: #000000 !important;
    border-bottom: 1px solid #ddd !important;
  }
  
  .unit-calc-statement {
    border: 1px solid #aaa !important;
    color: #000 !important;
    background: #f9f9f9 !important;
  }
  
  .history-chart-wrapper {
    page-break-before: always;
  }
}

/* Responsive / Mobile View Optimizations */
@media (max-width: 768px) {
  .dashboard-grid {
    grid-template-columns: 1fr;
    gap: 1rem;
  }
  
  .chart-gauge-container {
    grid-template-columns: 1fr;
    gap: 1.5rem;
  }
  
  header h1 {
    font-size: 2rem;
  }
  
  header p {
    font-size: 1rem;
  }
  
  .overview-cards {
    grid-template-columns: 1fr 1fr;
  }
}

@media (max-width: 480px) {
  .container {
    padding: 1rem;
  }
  
  header h1 {
    font-size: 1.6rem;
  }
  
  .overview-cards {
    grid-template-columns: 1fr;
  }
  
  .search-icon-inside {
    display: none;
  }
  
  .search-input {
    padding-left: 1.25rem;
    font-size: 0.95rem;
  }
  
  .search-btn {
    padding: 0.75rem 1rem;
    font-size: 0; /* Hides "Search" text */
  }
  
  .search-btn i {
    font-size: 1.1rem;
    margin: 0;
  }
  
  .suffix-select {
    padding-right: 1.25rem;
    font-size: 0.9rem;
  }
  
  .chart-bar-group .chart-label {
    font-size: 0.7rem;
    transform: rotate(-30deg);
    margin-top: 0.25rem;
  }
}