/* ========================================
   AI Route Planner - Modern Glassmorphism
   Earth from Space Color Palette
   ======================================== */

/* CSS Custom Properties (Dark Theme - Default) */
:root {
  /* Background Colors */
  --bg-primary: #0a0a1a;
  --bg-secondary: #0d1b2a;
  --bg-gradient: linear-gradient(135deg, #0a0a1a 0%, #0d1b2a 50%, #1b263b 100%);

  /* Glass Panel */
  --glass-bg: rgba(255, 255, 255, 0.03);
  --glass-border: rgba(255, 255, 255, 0.08);
  --glass-shadow: 0 8px 32px rgba(0, 0, 0, 0.4);
  --glass-blur: blur(12px);

  /* Accent Colors - Ocean & Earth */
  --accent-primary: #62b6cb;
  --accent-primary-hover: #90e0ef;
  --accent-secondary: #52b788;
  --accent-glow: rgba(98, 182, 203, 0.3);

  /* Text Colors */
  --text-primary: #e0f7fa;
  --text-secondary: #90a4ae;
  --text-muted: #546e7a;

  /* Status Colors */
  --success: #52b788;
  --success-bg: rgba(82, 183, 136, 0.15);
  --error: #ef476f;
  --error-bg: rgba(239, 71, 111, 0.15);
  --warning: #ffd166;

  /* Input Colors */
  --input-bg: rgba(255, 255, 255, 0.05);
  --input-border: rgba(255, 255, 255, 0.1);
  --input-focus: var(--accent-primary);

  /* Stat Colors */
  --stat-value: #90e0ef;

  /* Transitions */
  --transition-fast: 0.15s ease;
  --transition-normal: 0.25s ease;
  --transition-slow: 0.4s ease;

  /* Spacing */
  --spacing-xs: 8px;
  --spacing-sm: 12px;
  --spacing-md: 16px;
  --spacing-lg: 24px;
  --spacing-xl: 32px;

  /* Border Radius */
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 16px;
  --radius-xl: 24px;

  /* Typography */
  --font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --font-size-xs: 12px;
  --font-size-sm: 14px;
  --font-size-md: 16px;
  --font-size-lg: 20px;
  --font-size-xl: 28px;
  --font-size-2xl: 36px;
}

/* Light Theme */
@media (prefers-color-scheme: light) {
  :root:not([data-theme="dark"]) {
    --bg-primary: #e0f7fa;
    --bg-secondary: #b2ebf2;
    --bg-gradient: linear-gradient(135deg, #e0f7fa 0%, #b2ebf2 50%, #80deea 100%);

    --glass-bg: rgba(255, 255, 255, 0.6);
    --glass-border: rgba(255, 255, 255, 0.8);
    --glass-shadow: 0 8px 32px rgba(0, 50, 80, 0.1);

    --accent-primary: #1b4965;
    --accent-primary-hover: #0d3b66;
    --accent-secondary: #2d6a4f;
    --accent-glow: rgba(27, 73, 101, 0.2);

    --text-primary: #0d1b2a;
    --text-secondary: #37474f;
    --text-muted: #607d8b;

    --success: #2d6a4f;
    --success-bg: rgba(45, 106, 79, 0.1);
    --error: #c1121f;
    --error-bg: rgba(193, 18, 31, 0.1);

    --input-bg: rgba(255, 255, 255, 0.7);
    --input-border: rgba(0, 50, 80, 0.15);

    --stat-value: #1b4965;
  }
}

/* Manual Dark Theme Override */
[data-theme="dark"] {
  --bg-primary: #0a0a1a;
  --bg-secondary: #0d1b2a;
  --bg-gradient: linear-gradient(135deg, #0a0a1a 0%, #0d1b2a 50%, #1b263b 100%);

  --glass-bg: rgba(255, 255, 255, 0.03);
  --glass-border: rgba(255, 255, 255, 0.08);
  --glass-shadow: 0 8px 32px rgba(0, 0, 0, 0.4);

  --accent-primary: #62b6cb;
  --accent-primary-hover: #90e0ef;
  --accent-secondary: #52b788;
  --accent-glow: rgba(98, 182, 203, 0.3);

  --text-primary: #e0f7fa;
  --text-secondary: #90a4ae;
  --text-muted: #546e7a;

  --success: #52b788;
  --success-bg: rgba(82, 183, 136, 0.15);
  --error: #ef476f;
  --error-bg: rgba(239, 71, 111, 0.15);

  --input-bg: rgba(255, 255, 255, 0.05);
  --input-border: rgba(255, 255, 255, 0.1);

  --stat-value: #90e0ef;
}

/* Manual Light Theme Override */
[data-theme="light"] {
  --bg-primary: #e0f7fa;
  --bg-secondary: #b2ebf2;
  --bg-gradient: linear-gradient(135deg, #e0f7fa 0%, #b2ebf2 50%, #80deea 100%);

  --glass-bg: rgba(255, 255, 255, 0.6);
  --glass-border: rgba(255, 255, 255, 0.8);
  --glass-shadow: 0 8px 32px rgba(0, 50, 80, 0.1);

  --accent-primary: #1b4965;
  --accent-primary-hover: #0d3b66;
  --accent-secondary: #2d6a4f;
  --accent-glow: rgba(27, 73, 101, 0.2);

  --text-primary: #0d1b2a;
  --text-secondary: #37474f;
  --text-muted: #607d8b;

  --success: #2d6a4f;
  --success-bg: rgba(45, 106, 79, 0.1);
  --error: #c1121f;
  --error-bg: rgba(193, 18, 31, 0.1);

  --input-bg: rgba(255, 255, 255, 0.7);
  --input-border: rgba(0, 50, 80, 0.15);

  --stat-value: #1b4965;
}

/* ========================================
   Base Styles
   ======================================== */

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

html {
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  font-family: var(--font-family);
  background: var(--bg-gradient);
  color: var(--text-primary);
  min-height: 100vh;
  padding: var(--spacing-lg);
  transition: background var(--transition-slow), color var(--transition-normal);
}

/* Animated background orbs */
body::before,
body::after {
  content: '';
  position: fixed;
  border-radius: 50%;
  filter: blur(80px);
  opacity: 0.3;
  z-index: -1;
  animation: float 20s ease-in-out infinite;
}

body::before {
  width: 400px;
  height: 400px;
  background: var(--accent-primary);
  top: -100px;
  right: -100px;
}

body::after {
  width: 300px;
  height: 300px;
  background: var(--accent-secondary);
  bottom: -50px;
  left: -50px;
  animation-delay: -10s;
}

@keyframes float {
  0%, 100% { transform: translate(0, 0) scale(1); }
  33% { transform: translate(30px, -30px) scale(1.05); }
  66% { transform: translate(-20px, 20px) scale(0.95); }
}

/* ========================================
   Layout
   ======================================== */

.container {
  max-width: 1400px;
  margin: 0 auto;
}

header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: var(--spacing-lg);
}

.logo {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
}

.logo-icon {
  width: 40px;
  height: 40px;
  color: var(--accent-primary);
}

h1 {
  font-size: var(--font-size-xl);
  font-weight: 700;
  background: linear-gradient(135deg, var(--accent-primary), var(--accent-secondary));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.subtitle {
  color: var(--text-secondary);
  font-size: var(--font-size-sm);
  margin-top: 4px;
}

/* Theme Toggle */
.theme-toggle {
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  color: var(--text-primary);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all var(--transition-normal);
  backdrop-filter: var(--glass-blur);
  -webkit-backdrop-filter: var(--glass-blur);
}

.theme-toggle:hover {
  background: var(--accent-glow);
  border-color: var(--accent-primary);
  transform: scale(1.05);
}

.theme-toggle svg {
  width: 20px;
  height: 20px;
}

.theme-toggle .icon-sun,
.theme-toggle .icon-moon {
  transition: opacity var(--transition-normal), transform var(--transition-normal);
}

/* Main Layout Grid */
.layout {
  display: grid;
  grid-template-columns: 420px 1fr;
  gap: var(--spacing-lg);
  align-items: start;
}

/* ========================================
   Glass Panel Component
   ======================================== */

.panel {
  background: var(--glass-bg);
  backdrop-filter: var(--glass-blur);
  -webkit-backdrop-filter: var(--glass-blur);
  border-radius: var(--radius-lg);
  border: 1px solid var(--glass-border);
  box-shadow: var(--glass-shadow);
  padding: var(--spacing-lg);
  transition: all var(--transition-normal);
}

.panel:hover {
  border-color: rgba(255, 255, 255, 0.12);
}

/* ========================================
   Form Elements
   ======================================== */

.field {
  margin-bottom: var(--spacing-md);
}

label {
  display: block;
  margin-bottom: var(--spacing-xs);
  font-weight: 500;
  color: var(--text-secondary);
  font-size: var(--font-size-sm);
}

input,
select,
textarea {
  width: 100%;
  padding: var(--spacing-sm) var(--spacing-md);
  border-radius: var(--radius-md);
  border: 1px solid var(--input-border);
  background: var(--input-bg);
  color: var(--text-primary);
  font-size: var(--font-size-md);
  font-family: inherit;
  outline: none;
  transition: all var(--transition-fast);
  backdrop-filter: var(--glass-blur);
  -webkit-backdrop-filter: var(--glass-blur);
}

input::placeholder,
textarea::placeholder {
  color: var(--text-muted);
}

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

textarea {
  resize: none;
  min-height: 100px;
}

select {
  cursor: pointer;
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'%3E%3Cpath fill='%2390a4ae' d='M6 8L1 3h10z'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 12px center;
  padding-right: 36px;
}

/* Input Row */
.row {
  display: flex;
  gap: var(--spacing-sm);
  margin-bottom: var(--spacing-md);
}

.row input[type="text"] {
  flex: 1;
}

.row input[type="number"] {
  width: 100px;
}

/* Autocomplete */
.autocomplete-wrapper {
  position: relative;
}

.autocomplete-wrapper .row {
  margin-bottom: 0;
}

.suggestions-list {
  position: absolute;
  top: 100%;
  left: 0;
  right: 0;
  margin-top: 4px;
  padding: 0;
  list-style: none;
  background: var(--glass-bg);
  backdrop-filter: var(--glass-blur);
  -webkit-backdrop-filter: var(--glass-blur);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-md);
  box-shadow: var(--glass-shadow);
  max-height: 280px;
  overflow-y: auto;
  z-index: 1000;
  display: none;
}

.suggestions-list.active {
  display: block;
  animation: slideIn 0.2s ease;
}

.suggestions-list li {
  padding: var(--spacing-sm) var(--spacing-md);
  cursor: pointer;
  display: flex;
  align-items: flex-start;
  gap: var(--spacing-sm);
  border-bottom: 1px solid var(--glass-border);
  transition: background var(--transition-fast);
}

.suggestions-list li:last-child {
  border-bottom: none;
}

.suggestions-list li:hover,
.suggestions-list li.selected {
  background: var(--accent-glow);
}

.suggestions-list li svg {
  width: 16px;
  height: 16px;
  color: var(--accent-primary);
  flex-shrink: 0;
  margin-top: 2px;
}

.suggestion-text {
  flex: 1;
  min-width: 0;
}

.suggestion-main {
  font-size: var(--font-size-sm);
  color: var(--text-primary);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.suggestion-secondary {
  font-size: var(--font-size-xs);
  color: var(--text-muted);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.suggestions-loading {
  padding: var(--spacing-md);
  text-align: center;
  color: var(--text-muted);
  font-size: var(--font-size-sm);
}

.suggestions-empty {
  padding: var(--spacing-md);
  text-align: center;
  color: var(--text-muted);
  font-size: var(--font-size-sm);
}

/* ========================================
   Buttons
   ======================================== */

button {
  padding: var(--spacing-sm) var(--spacing-md);
  border-radius: var(--radius-md);
  border: none;
  font-weight: 600;
  font-size: var(--font-size-md);
  font-family: inherit;
  cursor: pointer;
  transition: all var(--transition-normal);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--spacing-xs);
}

button svg {
  width: 18px;
  height: 18px;
}

.btn-verify {
  background: var(--accent-primary);
  color: white;
  padding: var(--spacing-sm) var(--spacing-lg);
}

.btn-verify:hover {
  background: var(--accent-primary-hover);
  transform: translateY(-2px);
  box-shadow: 0 4px 12px var(--accent-glow);
}

.btn-generate {
  width: 100%;
  padding: var(--spacing-md);
  background: linear-gradient(135deg, var(--accent-primary), var(--accent-secondary));
  color: white;
  font-size: var(--font-size-md);
  margin-top: var(--spacing-lg);
  position: relative;
  overflow: hidden;
}

.btn-generate::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255,255,255,0.2), transparent);
  transition: left 0.5s ease;
}

.btn-generate:hover::before {
  left: 100%;
}

.btn-generate:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 24px var(--accent-glow);
}

.btn-generate:disabled {
  background: var(--input-bg);
  color: var(--text-muted);
  cursor: not-allowed;
  transform: none;
  box-shadow: none;
}

.btn-generate:disabled::before {
  display: none;
}

.btn-export {
  width: 100%;
  padding: var(--spacing-sm) var(--spacing-md);
  background: transparent;
  color: var(--accent-secondary);
  border: 2px solid var(--accent-secondary);
  margin-top: var(--spacing-sm);
}

.btn-export:hover {
  background: var(--success-bg);
  transform: translateY(-2px);
}

/* ========================================
   Status Messages
   ======================================== */

.verified {
  padding: var(--spacing-sm) var(--spacing-md);
  border-radius: var(--radius-md);
  background: var(--success-bg);
  border: 1px solid var(--success);
  margin-bottom: var(--spacing-md);
  font-size: var(--font-size-sm);
  color: var(--success);
  display: flex;
  align-items: center;
  gap: var(--spacing-xs);
  animation: slideIn 0.3s ease;
}

.verified svg {
  width: 16px;
  height: 16px;
  flex-shrink: 0;
}

.error {
  padding: var(--spacing-sm) var(--spacing-md);
  border-radius: var(--radius-md);
  background: var(--error-bg);
  border: 1px solid var(--error);
  margin-top: var(--spacing-sm);
  font-size: var(--font-size-sm);
  color: var(--error);
  display: flex;
  align-items: center;
  gap: var(--spacing-xs);
  animation: shake 0.4s ease;
}

.error svg {
  width: 16px;
  height: 16px;
  flex-shrink: 0;
}

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

@keyframes shake {
  0%, 100% { transform: translateX(0); }
  20% { transform: translateX(-5px); }
  40% { transform: translateX(5px); }
  60% { transform: translateX(-5px); }
  80% { transform: translateX(5px); }
}

/* ========================================
   Results Section
   ======================================== */

.results {
  margin-top: var(--spacing-lg);
  padding: var(--spacing-lg);
  background: var(--input-bg);
  border-radius: var(--radius-md);
  border: 1px solid var(--glass-border);
  animation: fadeIn 0.4s ease;
}

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

.results h3 {
  color: var(--accent-secondary);
  font-size: var(--font-size-sm);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 1px;
  margin-bottom: var(--spacing-md);
  display: flex;
  align-items: center;
  gap: var(--spacing-xs);
}

.results h3 svg {
  width: 16px;
  height: 16px;
}

.stats {
  display: flex;
  gap: var(--spacing-xl);
  margin-bottom: var(--spacing-md);
}

.stat {
  flex: 1;
}

.stat-label {
  color: var(--text-muted);
  font-size: var(--font-size-xs);
  text-transform: uppercase;
  letter-spacing: 0.5px;
  margin-bottom: 4px;
}

.stat-value {
  font-size: var(--font-size-2xl);
  font-weight: 700;
  color: var(--stat-value);
  line-height: 1;
}

.stat-sub {
  color: var(--text-muted);
  font-size: var(--font-size-sm);
  margin-top: 4px;
}

/* ========================================
   Map
   ======================================== */

.map-container {
  position: relative;
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--glass-shadow);
}

#map {
  height: 600px;
  background: var(--bg-secondary);
  border-radius: var(--radius-lg);
}

/* Custom Leaflet styling */
.leaflet-container {
  font-family: var(--font-family);
}

.leaflet-control-zoom {
  border: none !important;
  box-shadow: var(--glass-shadow) !important;
}

.leaflet-control-zoom a {
  background: var(--glass-bg) !important;
  backdrop-filter: var(--glass-blur) !important;
  -webkit-backdrop-filter: var(--glass-blur) !important;
  color: var(--text-primary) !important;
  border: 1px solid var(--glass-border) !important;
}

.leaflet-control-zoom a:hover {
  background: var(--accent-glow) !important;
}

.leaflet-popup-content-wrapper {
  background: var(--glass-bg) !important;
  backdrop-filter: var(--glass-blur) !important;
  -webkit-backdrop-filter: var(--glass-blur) !important;
  border: 1px solid var(--glass-border) !important;
  box-shadow: var(--glass-shadow) !important;
  border-radius: var(--radius-md) !important;
}

.leaflet-popup-content {
  color: var(--text-primary) !important;
  font-size: var(--font-size-sm) !important;
}

.leaflet-popup-tip {
  background: var(--glass-bg) !important;
}

/* Stop number icons on map */
.stop-number-icon {
  background: transparent;
  border: none;
}

.stop-number-icon span {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 20px;
  height: 20px;
  font-size: 11px;
  font-weight: 700;
  color: #1a1a2e;
}

/* ========================================
   Loading States
   ======================================== */

.loading {
  position: relative;
}

.loading::after {
  content: '';
  position: absolute;
  top: 50%;
  right: var(--spacing-md);
  transform: translateY(-50%);
  width: 18px;
  height: 18px;
  border: 2px solid var(--accent-primary);
  border-top-color: transparent;
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
}

@keyframes spin {
  to { transform: translateY(-50%) rotate(360deg); }
}

/* Button loading state */
.btn-generate.loading {
  pointer-events: none;
}

.btn-generate.loading::after {
  position: static;
  display: inline-block;
  margin-left: var(--spacing-xs);
  border-color: white;
  border-top-color: transparent;
  transform: none;
  animation: spin 0.8s linear infinite;
}

/* ========================================
   Responsive Design
   ======================================== */

/* Tablet */
@media (max-width: 1024px) {
  .layout {
    grid-template-columns: 380px 1fr;
    gap: var(--spacing-md);
  }

  #map {
    height: 500px;
  }
}

/* Large Mobile / Small Tablet */
@media (max-width: 768px) {
  body {
    padding: var(--spacing-md);
  }

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

  .panel {
    padding: var(--spacing-md);
  }

  #map {
    height: 400px;
    margin-top: var(--spacing-md);
  }

  .stats {
    gap: var(--spacing-lg);
  }

  .stat-value {
    font-size: var(--font-size-xl);
  }

  h1 {
    font-size: var(--font-size-lg);
  }
}

/* Mobile */
@media (max-width: 480px) {
  body {
    padding: var(--spacing-sm);
  }

  header {
    margin-bottom: var(--spacing-md);
  }

  h1 {
    font-size: var(--font-size-md);
  }

  .subtitle {
    display: none;
  }

  .row {
    flex-direction: column;
  }

  .row input[type="number"] {
    width: 100%;
  }

  .btn-verify {
    width: 100%;
    margin-top: var(--spacing-xs);
  }

  #map {
    height: 350px;
  }

  .stats {
    flex-direction: column;
    gap: var(--spacing-md);
  }
}

/* ========================================
   Accessibility
   ======================================== */

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}

/* Focus visible for keyboard navigation */
:focus-visible {
  outline: 2px solid var(--accent-primary);
  outline-offset: 2px;
}

button:focus-visible,
input:focus-visible,
select:focus-visible,
textarea:focus-visible {
  outline: 2px solid var(--accent-primary);
  outline-offset: 2px;
}

/* Screen reader only */
.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

/* ========================================
   Endpoint Toggle Switch
   ======================================== */

.endpoint-toggle {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  margin-bottom: var(--spacing-md);
  padding: var(--spacing-sm) 0;
}

.toggle-switch {
  position: relative;
  display: inline-block;
  width: 48px;
  height: 26px;
  flex-shrink: 0;
}

.toggle-switch input {
  opacity: 0;
  width: 0;
  height: 0;
}

.toggle-slider {
  position: absolute;
  cursor: pointer;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: var(--input-bg);
  border: 1px solid var(--input-border);
  border-radius: 26px;
  transition: all var(--transition-normal);
}

.toggle-slider::before {
  position: absolute;
  content: "";
  height: 20px;
  width: 20px;
  left: 2px;
  bottom: 2px;
  background: var(--text-secondary);
  border-radius: 50%;
  transition: all var(--transition-normal);
}

.toggle-switch input:checked + .toggle-slider {
  background: var(--accent-glow);
  border-color: var(--accent-primary);
}

.toggle-switch input:checked + .toggle-slider::before {
  background: var(--accent-primary);
  transform: translateX(22px);
}

.toggle-switch input:focus-visible + .toggle-slider {
  outline: 2px solid var(--accent-primary);
  outline-offset: 2px;
}

.toggle-label {
  font-size: var(--font-size-sm);
  color: var(--text-secondary);
  cursor: pointer;
}

/* ========================================
   Add Stops
   ======================================== */

.btn-add-stop {
  width: 100%;
  padding: var(--spacing-sm);
  background: transparent;
  border: 1px dashed var(--input-border);
  color: var(--text-secondary);
  font-size: var(--font-size-sm);
  border-radius: var(--radius-md);
  margin-bottom: var(--spacing-md);
  cursor: pointer;
  transition: all var(--transition-fast);
}

.btn-add-stop:hover {
  border-color: var(--accent-primary);
  color: var(--accent-primary);
  background: var(--accent-glow);
}

.btn-add-stop svg {
  width: 16px;
  height: 16px;
}

#stops-container {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-sm);
  margin-bottom: var(--spacing-sm);
}

.stop-item {
  position: relative;
  animation: slideIn 0.2s ease;
}

.stop-item .field {
  margin-bottom: 0;
}

.stop-item label {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.stop-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: var(--spacing-xs);
}

.stop-label {
  font-weight: 500;
  color: var(--text-secondary);
  font-size: var(--font-size-sm);
  display: flex;
  align-items: center;
  gap: var(--spacing-xs);
}

.stop-number {
  width: 20px;
  height: 20px;
  border-radius: 50%;
  background: var(--accent-primary);
  color: white;
  font-size: var(--font-size-xs);
  font-weight: 600;
  display: flex;
  align-items: center;
  justify-content: center;
}

.btn-remove-stop {
  width: 24px;
  height: 24px;
  padding: 0;
  background: transparent;
  border: none;
  color: var(--text-muted);
  border-radius: var(--radius-sm);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all var(--transition-fast);
}

.btn-remove-stop:hover {
  color: var(--error);
  background: var(--error-bg);
}

.btn-remove-stop svg {
  width: 14px;
  height: 14px;
}

.stop-verified {
  padding: var(--spacing-xs) var(--spacing-sm);
  border-radius: var(--radius-sm);
  background: var(--success-bg);
  border: 1px solid var(--success);
  margin-top: var(--spacing-xs);
  font-size: var(--font-size-xs);
  color: var(--success);
  display: flex;
  align-items: center;
  gap: var(--spacing-xs);
}

.stop-verified svg {
  width: 12px;
  height: 12px;
  flex-shrink: 0;
}

/* ========================================
   Distance Slider & Presets
   ======================================== */

.distance-control {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-sm);
}

.distance-display {
  display: flex;
  align-items: baseline;
  gap: var(--spacing-xs);
}

.distance-display #distance-value {
  font-size: var(--font-size-2xl);
  font-weight: 700;
  color: var(--stat-value);
  min-width: 60px;
}

.distance-display select {
  width: auto;
  padding: 4px 28px 4px 8px;
  font-size: var(--font-size-sm);
  background-position: right 6px center;
}

.distance-slider {
  -webkit-appearance: none;
  appearance: none;
  width: 100%;
  height: 8px;
  border-radius: 4px;
  background: var(--input-bg);
  border: 1px solid var(--input-border);
  cursor: pointer;
  padding: 0;
}

.distance-slider::-webkit-slider-thumb {
  -webkit-appearance: none;
  appearance: none;
  width: 24px;
  height: 24px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--accent-primary), var(--accent-secondary));
  cursor: pointer;
  box-shadow: 0 2px 8px var(--accent-glow);
  transition: transform var(--transition-fast);
}

.distance-slider::-webkit-slider-thumb:hover {
  transform: scale(1.1);
}

.distance-slider::-moz-range-thumb {
  width: 24px;
  height: 24px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--accent-primary), var(--accent-secondary));
  cursor: pointer;
  border: none;
  box-shadow: 0 2px 8px var(--accent-glow);
}

.distance-presets {
  display: flex;
  gap: var(--spacing-xs);
  flex-wrap: wrap;
}

.preset-btn {
  padding: 6px 12px;
  font-size: var(--font-size-xs);
  font-weight: 600;
  background: var(--input-bg);
  border: 1px solid var(--input-border);
  color: var(--text-secondary);
  border-radius: var(--radius-sm);
  transition: all var(--transition-fast);
}

.preset-btn:hover {
  border-color: var(--accent-primary);
  color: var(--accent-primary);
}

.preset-btn.active {
  background: var(--accent-glow);
  border-color: var(--accent-primary);
  color: var(--accent-primary);
}

/* ========================================
   Preference Chips
   ======================================== */

.preference-chips {
  display: flex;
  flex-wrap: wrap;
  gap: var(--spacing-xs);
  margin-bottom: var(--spacing-sm);
}

.chip {
  padding: 6px 14px;
  font-size: var(--font-size-xs);
  font-weight: 500;
  background: var(--input-bg);
  border: 1px solid var(--input-border);
  color: var(--text-secondary);
  border-radius: 20px;
  cursor: pointer;
  transition: all var(--transition-fast);
}

.chip:hover {
  border-color: var(--accent-primary);
  color: var(--accent-primary);
  background: var(--accent-glow);
}

.chip.active {
  background: var(--accent-primary);
  border-color: var(--accent-primary);
  color: white;
}

.preference-hint {
  font-size: var(--font-size-xs);
  color: var(--text-muted);
  margin-top: var(--spacing-xs);
  font-style: italic;
}

/* ========================================
   Multi-Step Loading Indicator
   ======================================== */

.loading-steps {
  margin-top: var(--spacing-md);
  padding: var(--spacing-md);
  background: var(--input-bg);
  border-radius: var(--radius-md);
  border: 1px solid var(--glass-border);
}

.loading-step {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  padding: var(--spacing-xs) 0;
  opacity: 0.4;
  transition: all var(--transition-normal);
}

.loading-step.active {
  opacity: 1;
}

.loading-step.completed {
  opacity: 0.7;
}

.loading-step.completed .step-text {
  color: var(--success);
}

.step-indicator {
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background: var(--input-bg);
  border: 2px solid var(--input-border);
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  flex-shrink: 0;
}

.loading-step.active .step-indicator {
  border-color: var(--accent-primary);
}

.loading-step.completed .step-indicator {
  background: var(--success);
  border-color: var(--success);
}

.step-number {
  font-size: var(--font-size-xs);
  font-weight: 600;
  color: var(--text-muted);
}

.loading-step.active .step-number,
.loading-step.completed .step-number {
  display: none;
}

.step-check {
  width: 14px;
  height: 14px;
  color: white;
  display: none;
}

.loading-step.completed .step-check {
  display: block;
}

.step-spinner {
  width: 14px;
  height: 14px;
  border: 2px solid var(--accent-primary);
  border-top-color: transparent;
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
  display: none;
}

.loading-step.active .step-spinner {
  display: block;
}

.step-text {
  font-size: var(--font-size-sm);
  color: var(--text-secondary);
}

.loading-step.active .step-text {
  color: var(--text-primary);
  font-weight: 500;
}

/* ========================================
   Results Header with Regenerate
   ======================================== */

.results-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: var(--spacing-md);
}

.results-header h3 {
  margin-bottom: 0;
}

.btn-regenerate {
  padding: 8px 14px;
  font-size: var(--font-size-xs);
  background: transparent;
  border: 1px solid var(--input-border);
  color: var(--text-secondary);
  border-radius: var(--radius-sm);
}

.btn-regenerate:hover {
  border-color: var(--accent-primary);
  color: var(--accent-primary);
  background: var(--accent-glow);
}

.btn-regenerate svg {
  width: 14px;
  height: 14px;
}

.results-actions {
  margin-top: var(--spacing-md);
}

/* ========================================
   Elevation Profile
   ======================================== */

.elevation-profile {
  margin: var(--spacing-md) 0;
  padding: var(--spacing-sm);
  background: rgba(0, 0, 0, 0.2);
  border-radius: var(--radius-sm);
}

#elevation-chart {
  width: 100%;
  display: block;
}

/* ========================================
   Route Options (Multiple Routes)
   ======================================== */

.route-options {
  margin-top: var(--spacing-lg);
  padding: var(--spacing-md);
  background: var(--input-bg);
  border-radius: var(--radius-md);
  border: 1px solid var(--glass-border);
  animation: fadeIn 0.4s ease;
}

.route-options h3 {
  font-size: var(--font-size-sm);
  font-weight: 600;
  color: var(--text-secondary);
  margin-bottom: var(--spacing-md);
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.route-cards {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-sm);
}

.route-card {
  padding: var(--spacing-sm) var(--spacing-md);
  background: var(--glass-bg);
  border: 1px solid var(--input-border);
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: all var(--transition-fast);
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.route-card:hover {
  border-color: var(--accent-primary);
  background: var(--accent-glow);
}

.route-card.active {
  border-color: var(--accent-primary);
  background: var(--accent-glow);
  box-shadow: 0 0 0 2px var(--accent-glow);
}

.route-card-info {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.route-card-name {
  font-weight: 600;
  font-size: var(--font-size-sm);
  color: var(--text-primary);
}

.route-card-stats {
  font-size: var(--font-size-xs);
  color: var(--text-muted);
}

.route-card-badge {
  padding: 4px 10px;
  font-size: var(--font-size-xs);
  font-weight: 600;
  border-radius: 12px;
  background: var(--input-bg);
  color: var(--text-secondary);
}

.route-card.active .route-card-badge {
  background: var(--accent-primary);
  color: white;
}

/* ========================================
   Map Controls & Layer Toggle
   ======================================== */

.map-controls {
  position: absolute;
  top: var(--spacing-md);
  right: var(--spacing-md);
  z-index: 1000;
}

.map-layer-btn {
  width: 40px;
  height: 40px;
  border-radius: var(--radius-sm);
  background: var(--glass-bg);
  backdrop-filter: var(--glass-blur);
  -webkit-backdrop-filter: var(--glass-blur);
  border: 1px solid var(--glass-border);
  color: var(--text-primary);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all var(--transition-fast);
}

.map-layer-btn:hover {
  background: var(--accent-glow);
  border-color: var(--accent-primary);
}

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

.layer-menu {
  position: absolute;
  top: 48px;
  right: 0;
  background: var(--glass-bg);
  backdrop-filter: var(--glass-blur);
  -webkit-backdrop-filter: var(--glass-blur);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-md);
  box-shadow: var(--glass-shadow);
  overflow: hidden;
  min-width: 120px;
  animation: slideIn 0.2s ease;
}

.layer-option {
  width: 100%;
  padding: var(--spacing-sm) var(--spacing-md);
  background: transparent;
  border: none;
  border-radius: 0;
  color: var(--text-secondary);
  font-size: var(--font-size-sm);
  text-align: left;
  cursor: pointer;
  transition: all var(--transition-fast);
}

.layer-option:hover {
  background: var(--accent-glow);
  color: var(--text-primary);
}

.layer-option.active {
  background: var(--accent-primary);
  color: white;
}

/* ========================================
   Recent Routes
   ======================================== */

.recent-routes {
  margin-top: var(--spacing-lg);
  padding: var(--spacing-md);
  background: var(--input-bg);
  border-radius: var(--radius-md);
  border: 1px solid var(--glass-border);
}

.recent-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: var(--spacing-sm);
}

.recent-header h4 {
  font-size: var(--font-size-sm);
  font-weight: 600;
  color: var(--text-secondary);
  margin: 0;
}

.btn-clear-history {
  width: 28px;
  height: 28px;
  padding: 0;
  background: transparent;
  border: none;
  color: var(--text-muted);
  border-radius: var(--radius-sm);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
}

.btn-clear-history:hover {
  color: var(--error);
  background: var(--error-bg);
}

.btn-clear-history svg {
  width: 14px;
  height: 14px;
}

.recent-list {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-xs);
}

.recent-item {
  padding: var(--spacing-sm);
  background: var(--glass-bg);
  border: 1px solid var(--input-border);
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: all var(--transition-fast);
}

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

.recent-item-name {
  font-size: var(--font-size-sm);
  font-weight: 500;
  color: var(--text-primary);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.recent-item-details {
  font-size: var(--font-size-xs);
  color: var(--text-muted);
  margin-top: 2px;
}

/* ========================================
   Mobile Adjustments for New Components
   ======================================== */

@media (max-width: 480px) {
  .distance-display #distance-value {
    font-size: var(--font-size-xl);
  }

  .preference-chips {
    gap: 6px;
  }

  .chip {
    padding: 5px 10px;
    font-size: 11px;
  }

  .loading-steps {
    padding: var(--spacing-sm);
  }

  .step-indicator {
    width: 24px;
    height: 24px;
  }

  .route-card {
    flex-direction: column;
    align-items: flex-start;
    gap: var(--spacing-xs);
  }

  .route-card-badge {
    align-self: flex-start;
  }

  .map-controls {
    top: var(--spacing-sm);
    right: var(--spacing-sm);
  }
}