:root {
  /* Primitive Color Tokens */
  --color-white: rgba(255, 255, 255, 1);
  --color-black: rgba(0, 0, 0, 1);
  --color-cream-50: rgba(252, 252, 249, 1);
  --color-cream-100: rgba(255, 255, 253, 1);
  --color-gray-200: rgba(245, 245, 245, 1);
  --color-gray-300: rgba(167, 169, 169, 1);
  --color-gray-400: rgba(119, 124, 124, 1);
  --color-slate-500: rgba(98, 108, 113, 1);
  --color-brown-600: rgba(94, 82, 64, 1);
  --color-charcoal-700: rgba(31, 33, 33, 1);
  --color-charcoal-800: rgba(38, 40, 40, 1);
  --color-slate-900: rgba(19, 52, 59, 1);
  --color-teal-300: rgba(50, 184, 198, 1);
  --color-teal-400: rgba(45, 166, 178, 1);
  --color-teal-500: rgba(33, 128, 141, 1);
  --color-teal-600: rgba(29, 116, 128, 1);
  --color-teal-700: rgba(26, 104, 115, 1);
  --color-teal-800: rgba(41, 150, 161, 1);
  --color-red-400: rgba(255, 84, 89, 1);
  --color-red-500: rgba(192, 21, 47, 1);
  --color-orange-400: rgba(230, 129, 97, 1);
  --color-orange-500: rgba(168, 75, 47, 1);

  /* RGB versions for opacity control */
  --color-brown-600-rgb: 94, 82, 64;
  --color-teal-500-rgb: 33, 128, 141;
  --color-slate-900-rgb: 19, 52, 59;
  --color-slate-500-rgb: 98, 108, 113;
  --color-red-500-rgb: 192, 21, 47;
  --color-red-400-rgb: 255, 84, 89;
  --color-orange-500-rgb: 168, 75, 47;
  --color-orange-400-rgb: 230, 129, 97;

  /* Semantic Color Tokens (Light Mode) */
  --color-background: var(--color-cream-50);
  --color-surface: var(--color-cream-100);
  --color-text: var(--color-slate-900);
  --color-text-secondary: var(--color-slate-500);
  --color-primary: var(--color-teal-500);
  --color-primary-hover: var(--color-teal-600);
  --color-primary-active: var(--color-teal-700);
  --color-secondary: rgba(var(--color-brown-600-rgb), 0.12);
  --color-secondary-hover: rgba(var(--color-brown-600-rgb), 0.2);
  --color-secondary-active: rgba(var(--color-brown-600-rgb), 0.25);
  --color-border: rgba(var(--color-brown-600-rgb), 0.2);
  --color-btn-primary-text: var(--color-cream-50);
  --color-card-border: rgba(var(--color-brown-600-rgb), 0.12);
  --color-card-border-inner: rgba(var(--color-brown-600-rgb), 0.12);
  --color-error: var(--color-red-500);
  --color-success: var(--color-teal-500);
  --color-warning: var(--color-orange-500);
  --color-info: var(--color-slate-500);
  --color-focus-ring: rgba(var(--color-teal-500-rgb), 0.4);

  /* Common style patterns */
  --focus-ring: 0 0 0 3px var(--color-focus-ring);
  --focus-outline: 2px solid var(--color-primary);

  /* Typography */
  --font-family-base: "FKGroteskNeue", "Geist", "Inter", -apple-system,
    BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  --font-size-sm: 12px;
  --font-size-base: 14px;
  --font-size-lg: 16px;
  --font-size-xl: 18px;
  --font-size-2xl: 20px;
  --font-size-3xl: 24px;
  --font-size-4xl: 30px;
  --font-weight-normal: 400;
  --font-weight-medium: 500;
  --font-weight-semibold: 550;
  --font-weight-bold: 600;
  --line-height-tight: 1.2;
  --line-height-normal: 1.5;
  --letter-spacing-tight: -0.01em;

  /* Spacing */
  --space-4: 4px;
  --space-8: 8px;
  --space-12: 12px;
  --space-16: 16px;
  --space-20: 20px;
  --space-24: 24px;
  --space-32: 32px;
  --space-48: 48px;

  /* Border Radius */
  --radius-sm: 6px;
  --radius-base: 8px;
  --radius-md: 10px;
  --radius-lg: 12px;
  --radius-full: 9999px;

  /* Shadows */
  --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.04), 0 1px 2px rgba(0, 0, 0, 0.02);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.04),
    0 2px 4px -1px rgba(0, 0, 0, 0.02);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.04),
    0 4px 6px -2px rgba(0, 0, 0, 0.02);

  /* Animation */
  --duration-fast: 150ms;
  --duration-normal: 250ms;
  --ease-standard: cubic-bezier(0.16, 1, 0.3, 1);
}

/* Dark mode colors */
@media (prefers-color-scheme: dark) {
  :root {
    --color-gray-400-rgb: 119, 124, 124;
    --color-teal-300-rgb: 50, 184, 198;
    --color-gray-300-rgb: 167, 169, 169;
    --color-gray-200-rgb: 245, 245, 245;
    --color-background: var(--color-charcoal-700);
    --color-surface: var(--color-charcoal-800);
    --color-text: var(--color-gray-200);
    --color-text-secondary: rgba(var(--color-gray-300-rgb), 0.7);
    --color-primary: var(--color-teal-300);
    --color-primary-hover: var(--color-teal-400);
    --color-primary-active: var(--color-teal-800);
    --color-secondary: rgba(var(--color-gray-400-rgb), 0.15);
    --color-secondary-hover: rgba(var(--color-gray-400-rgb), 0.25);
    --color-secondary-active: rgba(var(--color-gray-400-rgb), 0.3);
    --color-border: rgba(var(--color-gray-400-rgb), 0.3);
    --color-error: var(--color-red-400);
    --color-success: var(--color-teal-300);
    --color-warning: var(--color-orange-400);
    --color-info: var(--color-gray-300);
    --color-focus-ring: rgba(var(--color-teal-300-rgb), 0.4);
    --color-btn-primary-text: var(--color-slate-900);
    --color-card-border: rgba(var(--color-gray-400-rgb), 0.2);
    --color-card-border-inner: rgba(var(--color-gray-400-rgb), 0.15);
  }
}

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

body {
  font-family: var(--font-family-base);
  background-color: var(--color-background);
  color: var(--color-text);
  line-height: var(--line-height-normal);
  -webkit-font-smoothing: antialiased;
  padding: var(--space-24);
  min-height: 100vh;
}

.container {
  max-width: 900px;
  margin: 0 auto;
  padding-top: var(--space-48);
}

.header {
  text-align: center;
  margin-bottom: var(--space-48);
}

.header h1 {
  font-size: var(--font-size-4xl);
  font-weight: var(--font-weight-bold);
  color: var(--color-text);
  margin-bottom: var(--space-8);
  letter-spacing: var(--letter-spacing-tight);
}

.header p {
  font-size: var(--font-size-lg);
  color: var(--color-text-secondary);
}

.homepage-logoimg {
  max-width: 120px;  /* Adjust as needed, e.g., 100px, 150px */
  width: 100%;
  height: auto;
  display: block;
  margin: 0 auto 24px auto; /* centers and adds bottom space */
}

@media (max-width: 640px) {
  .homepage-logoimg {
    max-width: 80px;
    margin-bottom: 12px;
  }
}

.progress-bar {
  display: flex;
  justify-content: space-between;
  margin-bottom: var(--space-48);
  position: relative;
}

.progress-bar::before {
  content: '';
  position: absolute;
  top: 16px;
  left: 10%;
  right: 10%;
  height: 2px;
  background-color: var(--color-border);
  z-index: 0;
}

.progress-step {
  display: flex;
  flex-direction: column;
  align-items: center;
  flex: 1;
  position: relative;
  z-index: 1;
}

.progress-step-circle {
  width: 32px;
  height: 32px;
  border-radius: 50%;
  background-color: var(--color-surface);
  border: 2px solid var(--color-border);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: var(--font-size-base);
  margin-bottom: var(--space-8);
  transition: all var(--duration-normal) var(--ease-standard);
}

.progress-step.active .progress-step-circle {
  background-color: var(--color-primary);
  border-color: var(--color-primary);
  color: var(--color-btn-primary-text);
}

.progress-step.completed .progress-step-circle {
  background-color: var(--color-success);
  border-color: var(--color-success);
  color: var(--color-btn-primary-text);
}

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

.progress-step.active .progress-step-label {
  color: var(--color-text);
  font-weight: var(--font-weight-bold);
}

.carousel-container {
  background-color: var(--color-surface);
  border-radius: var(--radius-lg);
  border: 1px solid var(--color-card-border);
  box-shadow: var(--shadow-md);
  padding: var(--space-32);
  margin-bottom: var(--space-32);
  min-height: 500px;
  display: flex;
  flex-direction: column;
}

.step {
  display: none;
  animation: fadeInSlide 0.4s var(--ease-standard);
}

.step.active {
  display: block;
}

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

.step-title {
  font-size: var(--font-size-2xl);
  font-weight: var(--font-weight-bold);
  margin-bottom: var(--space-8);
  color: var(--color-text);
}

.step-subtitle {
  font-size: var(--font-size-base);
  color: var(--color-text-secondary);
  margin-bottom: var(--space-32);
}

.options-carousel {
  position: relative;
  overflow: hidden;
  margin-bottom: var(--space-32);
  padding: 0 var(--space-48);
}

.options-grid {
  display: flex;
  gap: var(--space-16);
  overflow-x: auto;
  scroll-snap-type: x mandatory;
  scroll-behavior: smooth;
  -webkit-overflow-scrolling: touch;
  scrollbar-width: none;
  padding: var(--space-8) 0;
}

.options-grid::-webkit-scrollbar {
  display: none;
}

.option-card {
  position: relative;
  background-color: var(--color-surface);
  border: 2px solid var(--color-border);
  border-radius: var(--radius-md);
  overflow: hidden;
  cursor: pointer;
  transition: all var(--duration-normal) var(--ease-standard);
  min-width: 200px;
  flex-shrink: 0;
  scroll-snap-align: center;
}

.option-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
  border-color: var(--color-primary);
}

.option-card.selected {
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px var(--color-focus-ring);
}

.option-card.selected::after {
  content: '✓';
  position: absolute;
  top: var(--space-8);
  right: var(--space-8);
  width: 24px;
  height: 24px;
  background-color: var(--color-primary);
  color: var(--color-btn-primary-text);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: var(--font-weight-bold);
  font-size: var(--font-size-sm);
}

.option-image {
  width: 100%;
  height: 150px;
  object-fit: cover;
  background: linear-gradient(135deg, var(--color-secondary) 0%, var(--color-secondary-hover) 100%);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 48px;
}

.option-content {
  padding: var(--space-16);
  text-align: center;
}

.option-title {
  font-size: var(--font-size-lg);
  font-weight: var(--font-weight-semibold);
  color: var(--color-text);
  margin-bottom: var(--space-4);
}

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

.button-group {
  display: flex;
  gap: var(--space-12);
  margin-top: auto;
}

.btn {
  flex: 1;
  padding: var(--space-16) var(--space-24);
  font-size: var(--font-size-lg);
  font-weight: var(--font-weight-semibold);
  border: none;
  border-radius: var(--radius-base);
  cursor: pointer;
  transition: all var(--duration-normal) var(--ease-standard);
}

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

.btn-primary:hover:not(:disabled) {
  background-color: var(--color-primary-hover);
  transform: translateY(-1px);
  box-shadow: var(--shadow-lg);
}

.btn-primary:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

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

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

.btn.btn-loading {
  position: relative;
  color: transparent;
}

.btn.btn-loading::after {
  content: "";
  position: absolute;
  width: 16px;
  height: 16px;
  top: 50%;
  left: 50%;
  margin-left: -8px;
  margin-top: -8px;
  border: 2px solid var(--color-btn-primary-text);
  border-radius: 50%;
  border-top-color: transparent;
  animation: spinner 0.6s linear infinite;
}

@keyframes spinner {
  to {transform: rotate(360deg);}
}

.results {
  background-color: var(--color-surface);
  border-radius: var(--radius-lg);
  border: 1px solid var(--color-card-border);
  box-shadow: var(--shadow-md);
  padding: var(--space-32);
  animation: fadeIn 0.3s var(--ease-standard);
}

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

.results:empty {
  display: none;
}

/* Restaurant card enhancements for Google Maps links */
.restaurant-address {
  font-size: var(--font-size-sm);
  color: var(--color-text-secondary);
  margin-bottom: var(--space-12);
  font-style: italic;
}
.restaurant-card {
  background-color: var(--color-surface);
  border: 1px solid var(--color-card-border-inner);
  border-radius: var(--radius-md);
  padding: var(--space-24);
  margin-bottom: var(--space-20);
  transition: all var(--duration-normal) var(--ease-standard);
}

.restaurant-card:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
  border-color: var(--color-primary);
}

.restaurant-card h3 {
  font-size: var(--font-size-xl);
  font-weight: var(--font-weight-bold);
  color: var(--color-text);
  margin-bottom: var(--space-8);
}

.restaurant-info {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-16);
  margin-bottom: var(--space-12);
  font-size: var(--font-size-sm);
  color: var(--color-text-secondary);
}

.restaurant-description {
  color: var(--color-text);
  line-height: 1.6;
  margin-bottom: var(--space-16);
}

.restaurant-tags {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-8);
}

.tag {
  background-color: var(--color-secondary);
  color: var(--color-text);
  padding: var(--space-4) var(--space-12);
  border-radius: var(--radius-full);
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-medium);
}

.error-message {
  background-color: rgba(var(--color-error-rgb), 0.1);
  border: 1px solid rgba(var(--color-error-rgb), 0.3);
  color: var(--color-error);
  padding: var(--space-16);
  border-radius: var(--radius-base);
  margin-top: var(--space-16);
}

.ai-intro {
  font-size: var(--font-size-base);
  color: var(--color-text-secondary);
  margin-bottom: var(--space-24);
  padding-bottom: var(--space-16);
  border-bottom: 1px solid var(--color-card-border-inner);
}

.carousel-nav {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  width: 40px;
  height: 40px;
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  z-index: 10;
  transition: all var(--duration-normal) var(--ease-standard);
}

.carousel-nav:hover {
  background-color: var(--color-primary);
  border-color: var(--color-primary);
  color: var(--color-btn-primary-text);
  box-shadow: var(--shadow-md);
}

.carousel-nav.prev {
  left: 0;
}

.carousel-nav.next {
  right: 0;
}

.loading-animation {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: var(--space-48);
  gap: var(--space-24);
  min-height: 500px;
}

.loading-title {
  font-size: var(--font-size-3xl);
  font-weight: var(--font-weight-bold);
  color: var(--color-text);
  text-align: center;
  margin-bottom: var(--space-8);
}

.loading-preferences {
  font-size: var(--font-size-base);
  color: var(--color-text-secondary);
  text-align: center;
  margin-bottom: var(--space-32);
  max-width: 600px;
}

.loading-spinner {
  position: relative;
  width: 140px;
  height: 140px;
}

.spinner-item {
  position: absolute;
  width: 80px;
  height: 80px;
  border-radius: var(--radius-md);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  font-size: 32px;
  background-color: var(--color-surface);
  border: 2px solid var(--color-primary);
  animation: orbit 3s linear infinite;
  transition: background 0.2s;
  box-shadow: 0 2px 8px rgba(33, 128, 141, 0.07);
}

.spinner-label {
  font-size: var(--font-size-sm);
  color: var(--color-text-secondary);
  font-weight: var(--font-weight-semibold);
  margin-top: 6px;
  text-align: center;
  line-height: 1.2;
}

.spinner-item:nth-child(1) {
  animation-delay: 0s;
  top: 0;
  left: 30px;
}

.spinner-item:nth-child(2) {
  animation-delay: -0.75s;
  top: 30px;
  right: 0;
}

.spinner-item:nth-child(3) {
  animation-delay: -1.5s;
  bottom: 0;
  left: 30px;
}

.spinner-item:nth-child(4) {
  animation-delay: -2.25s;
  top: 30px;
  left: 0;
}

@keyframes orbit {
  0% {
    transform: rotate(0deg) translateX(38px) rotate(0deg);
    opacity: 1;
  }
  50% {
    opacity: 0.6;
  }
  100% {
    transform: rotate(360deg) translateX(38px) rotate(-360deg);
    opacity: 1;
  }
}

.loading-text {
  font-size: var(--font-size-xl);
  font-weight: var(--font-weight-semibold);
  color: var(--color-text);
  text-align: center;
}

.loading-subtext {
  font-size: var(--font-size-base);
  color: var(--color-text-secondary);
  text-align: center;
}

.restaurant-links {
  display: flex;
  gap: var(--space-12);
  margin-top: var(--space-16);
  padding-top: var(--space-16);
  border-top: 1px solid var(--color-card-border-inner);
  flex-wrap: wrap;
}

.map-link,
.website-link {
  display: inline-flex;
  align-items: center;
  gap: var(--space-4);
  padding: var(--space-8) var(--space-16);
  background-color: var(--color-secondary);
  color: var(--color-text);
  text-decoration: none;
  border-radius: var(--radius-base);
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-medium);
  transition: all var(--duration-fast) var(--ease-standard);
}

.map-link:hover,
.website-link:hover {
  background-color: var(--color-secondary-hover);
  transform: translateY(-1px);
}

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

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

@media (max-width: 640px) {
  body {
    padding: var(--space-16);
  }

  .container {
    padding-top: var(--space-24);
  }

  .header h1 {
    font-size: var(--font-size-3xl);
  }

  .options-carousel {
    padding: 0 var(--space-24);
  }

  .option-card {
    min-width: 160px;
  }

  .carousel-nav {
    width: 32px;
    height: 32px;
    font-size: var(--font-size-sm);
  }

  .progress-bar {
    font-size: var(--font-size-sm);
  }

  .carousel-container {
    padding: var(--space-20);
  }
}

@font-face {
  font-family: 'FKGroteskNeue';
  src: url('https://r2cdn.perplexity.ai/fonts/FKGroteskNeue.woff2')
    format('woff2');
}