/* ==========================================================================
   MoneyCount Modern PWA Design System
   ========================================================================== */

:root {
  --bg-primary: #090d16;
  --bg-secondary: #0f172a;
  --bg-card: rgba(18, 26, 44, 0.75);
  --bg-card-hover: rgba(26, 37, 63, 0.85);
  --bg-input: rgba(15, 23, 42, 0.85);
  
  --border-subtle: rgba(255, 255, 255, 0.08);
  --border-focus: #38bdf8;
  --border-card: rgba(56, 189, 248, 0.15);

  --text-main: #f8fafc;
  --text-muted: #94a3b8;
  --text-dim: #64748b;

  --accent-cyan: #38bdf8;
  --accent-cyan-rgb: 56, 189, 248;
  --accent-blue: #0284c7;
  --accent-green: #10b981;
  --accent-green-rgb: 16, 185, 129;
  --accent-orange: #f59e0b;

  --gradient-hero: linear-gradient(135deg, rgba(14, 165, 233, 0.15) 0%, rgba(16, 185, 129, 0.12) 100%);
  --gradient-glow: radial-gradient(circle at 50% 0%, rgba(56, 189, 248, 0.25) 0%, transparent 70%);
  --gradient-btn: linear-gradient(135deg, #0284c7 0%, #0369a1 100%);
  
  --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.3);
  --shadow-md: 0 8px 24px rgba(0, 0, 0, 0.4);
  --shadow-lg: 0 16px 36px rgba(0, 0, 0, 0.5), 0 0 20px rgba(56, 189, 248, 0.12);
  
  --radius-sm: 8px;
  --radius-md: 14px;
  --radius-lg: 20px;
  --radius-xl: 28px;
  --radius-full: 9999px;

  --font-sans: 'Plus Jakarta Sans', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --font-mono: 'JetBrains Mono', monospace;
}

/* Base & Reset */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
  -webkit-tap-highlight-color: transparent;
}

body {
  font-family: var(--font-sans);
  background-color: var(--bg-primary);
  color: var(--text-main);
  min-height: 100vh;
  min-height: -webkit-fill-available;
  line-height: 1.5;
  display: flex;
  justify-content: center;
  padding: env(safe-area-inset-top, 0) env(safe-area-inset-right, 0) env(safe-area-inset-bottom, 0) env(safe-area-inset-left, 0);
  background-image: 
    radial-gradient(at 10% 10%, rgba(14, 165, 233, 0.08) 0px, transparent 50%),
    radial-gradient(at 90% 90%, rgba(16, 185, 129, 0.06) 0px, transparent 50%);
  background-attachment: fixed;
  overflow-x: hidden;
}

/* App Container */
.app-container {
  width: 100%;
  max-width: 520px;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  padding: 16px 20px 32px;
  gap: 18px;
}

/* Header */
.app-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 8px 4px 4px;
}

.logo-group {
  display: flex;
  align-items: center;
  gap: 12px;
}

.logo-icon-wrap {
  width: 44px;
  height: 44px;
  border-radius: var(--radius-md);
  background: transparent;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 4px 14px rgba(56, 189, 248, 0.25);
  overflow: hidden;
  flex-shrink: 0;
}

.logo-inline-svg {
  width: 100%;
  height: 100%;
  display: block;
  border-radius: var(--radius-md);
}

.logo-img {
  width: 100%;
  height: 100%;
  object-fit: contain;
  display: block;
  border-radius: calc(var(--radius-md) - 4px);
}

.logo-title {
  font-size: 1.35rem;
  font-weight: 800;
  letter-spacing: -0.02em;
  background: linear-gradient(to right, #ffffff, #cbd5e1);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.logo-subtitle {
  font-size: 0.78rem;
  color: var(--text-muted);
  font-weight: 500;
}

.header-actions {
  display: flex;
  gap: 8px;
}

.btn-icon-subtle {
  width: 40px;
  height: 40px;
  border-radius: var(--radius-md);
  border: 1px solid var(--border-subtle);
  background: rgba(255, 255, 255, 0.03);
  color: var(--text-muted);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: all 0.2s ease;
}

.btn-icon-subtle:hover, .btn-icon-subtle:active {
  background: rgba(255, 255, 255, 0.08);
  color: var(--text-main);
  border-color: rgba(255, 255, 255, 0.2);
  transform: scale(0.97);
}

.btn-icon-subtle svg {
  width: 20px;
  height: 20px;
}

.hidden {
  display: none !important;
}

/* ==========================================================================
   Hero Result Card
   ========================================================================== */
.result-hero-card {
  position: relative;
  background: var(--bg-card);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border: 1px solid var(--border-card);
  border-radius: var(--radius-xl);
  padding: 24px 20px 20px;
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  box-shadow: var(--shadow-lg);
  overflow: hidden;
  transition: transform 0.2s ease, border-color 0.3s ease;
}

.result-hero-card::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 120px;
  background: var(--gradient-glow);
  pointer-events: none;
}

.hero-badge-wrap {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(56, 189, 248, 0.12);
  border: 1px solid rgba(56, 189, 248, 0.3);
  border-radius: var(--radius-full);
  padding: 5px 14px;
  margin-bottom: 12px;
}

.pulse-indicator {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--accent-green);
  box-shadow: 0 0 10px var(--accent-green);
  animation: pulse 2s infinite ease-in-out;
}

@keyframes pulse {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.5; transform: scale(1.3); }
}

.hero-badge-label {
  font-size: 0.78rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--accent-cyan);
}

.hero-primary-amount {
  display: flex;
  align-items: baseline;
  justify-content: center;
  gap: 6px;
  margin-bottom: 18px;
}

.amount-val {
  font-family: var(--font-sans);
  font-size: 3.5rem;
  font-weight: 800;
  line-height: 1;
  letter-spacing: -0.04em;
  background: linear-gradient(135deg, #ffffff 40%, #7dd3fc 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  transition: all 0.2s ease;
}

.amount-unit {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--accent-cyan);
}

/* Stats Grid Inside Hero */
.hero-grid-stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  width: 100%;
  gap: 8px;
  background: rgba(15, 23, 42, 0.65);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 12px 10px;
  margin-bottom: 16px;
}

.hero-stat-item {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.stat-label {
  font-size: 0.72rem;
  color: var(--text-muted);
  font-weight: 500;
  white-space: nowrap;
}

.stat-value {
  font-size: 0.95rem;
  color: var(--text-main);
  font-weight: 600;
}

.stat-value strong {
  color: #ffffff;
  font-weight: 700;
}

/* Hero Action Buttons */
.hero-actions-row {
  display: flex;
  width: 100%;
  gap: 10px;
}

.hero-btn {
  flex: 1;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 16px;
  font-family: var(--font-sans);
  font-size: 0.88rem;
  font-weight: 600;
  color: #ffffff;
  background: linear-gradient(135deg, #0284c7 0%, #0369a1 100%);
  border: 1px solid rgba(56, 189, 248, 0.4);
  border-radius: var(--radius-md);
  cursor: pointer;
  box-shadow: 0 4px 14px rgba(2, 132, 199, 0.35);
  transition: all 0.18s ease;
}

.hero-btn:hover {
  filter: brightness(1.1);
  transform: translateY(-1px);
}

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

.hero-btn-secondary {
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid var(--border-subtle);
  color: var(--text-main);
  box-shadow: none;
}

.hero-btn-secondary:hover {
  background: rgba(255, 255, 255, 0.1);
  border-color: rgba(255, 255, 255, 0.2);
}

.btn-svg {
  width: 18px;
  height: 18px;
}

/* ==========================================================================
   Input Cards
   ========================================================================== */
.inputs-container {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.input-card {
  background: var(--bg-card);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: 16px;
  transition: all 0.2s ease;
}

.input-card:focus-within {
  border-color: rgba(56, 189, 248, 0.5);
  box-shadow: 0 0 16px rgba(56, 189, 248, 0.1);
}

.input-card-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}

.input-label {
  display: flex;
  align-items: center;
  gap: 10px;
  cursor: pointer;
}

.icon-bubble {
  width: 38px;
  height: 38px;
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid var(--border-subtle);
  color: var(--accent-cyan);
}

.icon-bubble svg {
  width: 20px;
  height: 20px;
}

.icon-distance { color: #38bdf8; background: rgba(56, 189, 248, 0.1); }
.icon-consumption { color: #10b981; background: rgba(16, 185, 129, 0.1); }
.icon-fuel { color: #f59e0b; background: rgba(245, 158, 11, 0.1); }
.icon-people { color: #a855f7; background: rgba(168, 85, 247, 0.1); }

.label-text {
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--text-main);
}

.input-wrapper {
  position: relative;
  display: flex;
  align-items: center;
  background: var(--bg-input);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 4px 10px;
  min-width: 130px;
  transition: border-color 0.2s ease;
}

.input-wrapper:focus-within {
  border-color: var(--accent-cyan);
}

.input-wrapper.compact {
  min-width: 110px;
}

.num-input {
  width: 100%;
  background: transparent;
  border: none;
  color: #ffffff;
  font-family: var(--font-sans);
  font-size: 1.15rem;
  font-weight: 700;
  text-align: right;
  padding-right: 6px;
  outline: none;
}

/* Chrome, Safari, Edge, Opera */
.num-input::-webkit-outer-spin-button,
.num-input::-webkit-inner-spin-button {
  -webkit-appearance: none;
  margin: 0;
}
/* Firefox */
.num-input[type=number] {
  -moz-appearance: textfield;
}

.input-suffix {
  font-size: 0.78rem;
  color: var(--text-muted);
  font-weight: 600;
  white-space: nowrap;
}

.input-card-bottom {
  margin-top: 12px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
  flex-wrap: wrap;
}

.quick-chips {
  display: flex;
  gap: 6px;
  flex-wrap: wrap;
}

.chip {
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid var(--border-subtle);
  color: var(--text-muted);
  border-radius: var(--radius-full);
  padding: 4px 10px;
  font-size: 0.76rem;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.15s ease;
}

.chip:hover, .chip:active {
  background: rgba(255, 255, 255, 0.12);
  color: #ffffff;
  border-color: rgba(255, 255, 255, 0.25);
}

.toggle-chip {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid var(--border-subtle);
  color: var(--text-muted);
  border-radius: var(--radius-full);
  padding: 5px 12px;
  font-size: 0.78rem;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.2s ease;
}

.chip-svg {
  width: 14px;
  height: 14px;
}

.toggle-chip[aria-pressed="true"] {
  background: rgba(56, 189, 248, 0.18);
  border-color: var(--accent-cyan);
  color: #ffffff;
  box-shadow: 0 0 10px rgba(56, 189, 248, 0.25);
}

/* Slider */
.slider-group {
  margin-top: 12px;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.custom-range {
  -webkit-appearance: none;
  appearance: none;
  width: 100%;
  height: 6px;
  border-radius: 4px;
  background: #1e293b;
  outline: none;
}

.custom-range::-webkit-slider-thumb {
  -webkit-appearance: none;
  appearance: none;
  width: 20px;
  height: 20px;
  border-radius: 50%;
  background: var(--accent-cyan);
  cursor: pointer;
  box-shadow: 0 0 10px rgba(56, 189, 248, 0.5);
  border: 2px solid #ffffff;
  transition: transform 0.1s ease;
}

.custom-range::-webkit-slider-thumb:hover, .custom-range::-webkit-slider-thumb:active {
  transform: scale(1.15);
}

/* Fuel Presets */
.fuel-presets {
  margin-top: 12px;
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 6px;
}

.fuel-chip {
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  color: var(--text-muted);
  padding: 8px 10px;
  font-size: 0.78rem;
  font-weight: 600;
  cursor: pointer;
  text-align: center;
  transition: all 0.15s ease;
}

.fuel-chip:hover, .fuel-chip.active {
  background: rgba(245, 158, 11, 0.15);
  border-color: rgba(245, 158, 11, 0.4);
  color: #ffffff;
}

/* Stepper for Passengers */
.stepper-wrapper {
  display: flex;
  align-items: center;
  background: var(--bg-input);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  overflow: hidden;
}

.stepper-btn {
  width: 42px;
  height: 42px;
  background: rgba(255, 255, 255, 0.03);
  border: none;
  color: var(--text-main);
  font-size: 1.3rem;
  font-weight: 700;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: background 0.15s ease;
}

.stepper-btn:hover {
  background: rgba(255, 255, 255, 0.1);
}

.stepper-btn:active {
  background: rgba(255, 255, 255, 0.2);
}

.stepper-input {
  width: 50px;
  text-align: center;
  padding: 0;
  font-size: 1.25rem;
}

/* Visual Passengers Avatars */
.passengers-visual {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-top: 12px;
  padding-top: 10px;
  border-top: 1px solid var(--border-subtle);
  flex-wrap: wrap;
}

.passenger-dot {
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background: linear-gradient(135deg, rgba(168, 85, 247, 0.3), rgba(56, 189, 248, 0.3));
  border: 1px solid rgba(168, 85, 247, 0.5);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.72rem;
  font-weight: 700;
  color: #ffffff;
  animation: popIn 0.25s ease-out;
}

@keyframes popIn {
  0% { transform: scale(0.5); opacity: 0; }
  100% { transform: scale(1); opacity: 1; }
}

/* ==========================================================================
   Collapsible Extra Costs Accordion
   ========================================================================== */
.extra-accordion {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: border-color 0.2s ease;
}

.extra-summary {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 16px;
  cursor: pointer;
  list-style: none;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--text-muted);
}

.extra-summary::-webkit-details-marker {
  display: none;
}

.summary-left {
  display: flex;
  align-items: center;
  gap: 8px;
}

.summary-icon {
  width: 18px;
  height: 18px;
  transition: transform 0.2s ease;
}

.extra-accordion[open] .summary-icon {
  transform: rotate(45deg);
}

.summary-badge {
  font-size: 0.75rem;
  background: rgba(255, 255, 255, 0.05);
  padding: 2px 8px;
  border-radius: var(--radius-full);
  color: var(--text-muted);
}

.extra-content {
  padding: 0 16px 16px;
  border-top: 1px solid var(--border-subtle);
  padding-top: 14px;
}

.extra-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 12px;
}

.extra-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}

.extra-sublabel {
  font-size: 0.84rem;
  color: var(--text-muted);
}

/* ==========================================================================
   Saved Trips
   ========================================================================== */
.saved-trips-card {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: 16px;
}

.saved-trips-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 12px;
}

.saved-trips-title {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 0.88rem;
  font-weight: 700;
  color: var(--text-main);
}

.title-svg {
  width: 16px;
  height: 16px;
  color: var(--accent-cyan);
}

.btn-text-action {
  background: none;
  border: none;
  color: var(--accent-cyan);
  font-size: 0.78rem;
  font-weight: 600;
  cursor: pointer;
  padding: 4px 8px;
  border-radius: var(--radius-sm);
  transition: background 0.15s ease;
}

.btn-text-action:hover {
  background: rgba(56, 189, 248, 0.1);
}

.saved-trips-list {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.empty-trips-msg {
  font-size: 0.8rem;
  color: var(--text-dim);
  text-align: center;
  padding: 10px 0;
}

.trip-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  background: rgba(15, 23, 42, 0.6);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 10px 12px;
  cursor: pointer;
  transition: all 0.15s ease;
}

.trip-item:hover {
  background: rgba(255, 255, 255, 0.05);
  border-color: rgba(56, 189, 248, 0.3);
}

.trip-info-title {
  font-size: 0.85rem;
  font-weight: 600;
  color: #ffffff;
}

.trip-info-meta {
  font-size: 0.74rem;
  color: var(--text-muted);
}

.trip-price-tag {
  font-size: 0.9rem;
  font-weight: 700;
  color: var(--accent-green);
}

.trip-delete-btn {
  background: none;
  border: none;
  color: var(--text-dim);
  padding: 4px 8px;
  font-size: 1rem;
  cursor: pointer;
  border-radius: var(--radius-sm);
  margin-left: 8px;
}

.trip-delete-btn:hover {
  color: #ef4444;
  background: rgba(239, 68, 68, 0.1);
}

/* ==========================================================================
   Footer
   ========================================================================== */
.app-footer {
  text-align: center;
  margin-top: auto;
  padding: 16px 0 8px;
}

.app-footer p {
  font-size: 0.74rem;
  color: var(--text-dim);
}

/* ==========================================================================
   Modal: QR Platba
   ========================================================================== */
.modal-backdrop {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.75);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 1000;
  padding: 20px;
  animation: fadeIn 0.2s ease-out;
}

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

.modal-dialog {
  background: #0f172a;
  border: 1px solid var(--border-card);
  border-radius: var(--radius-xl);
  width: 100%;
  max-width: 400px;
  padding: 24px;
  box-shadow: var(--shadow-lg);
  display: flex;
  flex-direction: column;
  gap: 16px;
  animation: scaleUp 0.2s ease-out;
}

@keyframes scaleUp {
  from { transform: scale(0.95); opacity: 0; }
  to { transform: scale(1); opacity: 1; }
}

.modal-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.modal-title {
  font-size: 1.15rem;
  font-weight: 700;
  color: #ffffff;
}

.modal-close-btn {
  background: none;
  border: none;
  font-size: 1.5rem;
  color: var(--text-muted);
  cursor: pointer;
  line-height: 1;
}

.modal-close-btn:hover {
  color: #ffffff;
}

.modal-desc {
  font-size: 0.8rem;
  color: var(--text-muted);
  line-height: 1.4;
}

.qr-preview-box {
  background: #ffffff;
  border-radius: var(--radius-lg);
  padding: 16px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 10px;
  margin: 8px 0;
}

#qrCanvas {
  max-width: 100%;
  height: auto;
  display: block;
}

.qr-amount-callout {
  font-family: var(--font-sans);
  font-weight: 800;
  font-size: 1.15rem;
  color: #0f172a;
}

.qr-account-form {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.qr-label {
  font-size: 0.78rem;
  font-weight: 600;
  color: var(--text-muted);
}

.text-input {
  background: var(--bg-input);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 10px 12px;
  color: #ffffff;
  font-family: var(--font-sans);
  font-size: 0.9rem;
  outline: none;
  transition: border-color 0.2s ease;
}

.text-input:focus {
  border-color: var(--accent-cyan);
}

.modal-footer {
  display: flex;
  gap: 10px;
  margin-top: 8px;
}

/* ==========================================================================
   Toast Notification
   ========================================================================== */
.toast-popup {
  position: fixed;
  bottom: 24px;
  left: 50%;
  transform: translateX(-50%) translateY(100px);
  background: rgba(15, 23, 42, 0.95);
  border: 1px solid var(--accent-cyan);
  color: #ffffff;
  padding: 10px 20px;
  border-radius: var(--radius-full);
  font-size: 0.85rem;
  font-weight: 600;
  box-shadow: var(--shadow-lg);
  backdrop-filter: blur(8px);
  z-index: 2000;
  opacity: 0;
  pointer-events: none;
  transition: all 0.3s cubic-bezier(0.16, 1, 0.3, 1);
}

.toast-popup.show {
  transform: translateX(-50%) translateY(0);
  opacity: 1;
}

/* ==========================================================================
   Responsive Adjustments
   ========================================================================== */
@media (max-width: 380px) {
  .app-container {
    padding: 12px 14px 24px;
  }
  .amount-val {
    font-size: 2.8rem;
  }
  .input-wrapper {
    min-width: 105px;
  }
  .hero-grid-stats {
    padding: 10px 6px;
  }
}