/* Future Foods AI - Design System */

/* Google Fonts Import */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700&family=Playfair+Display:ital,wght@0,400;0,600;1,400;1,600&family=Space+Grotesk:wght@400;500;600;700&display=swap');

/* CSS Variables */
:root {
  --deep-charcoal: #1a1a2e;
  --charcoal-light: #232340;
  --electric-violet: #6c5ce7;
  --violet-light: #a29bfe;
  --neon-cyan: #00d4ff;
  --warm-orange: #ff6b35;
  --soft-cream: #f8f9fa;
  --white: #ffffff;
  --gray-100: #f1f3f5;
  --gray-200: #e9ecef;
  --gray-300: #dee2e6;
  --gray-600: #868e96;
  --gray-800: #343a40;
  --shadow-sm: 0 2px 4px rgba(0,0,0,0.1);
  --shadow-md: 0 4px 12px rgba(0,0,0,0.15);
  --shadow-lg: 0 8px 24px rgba(0,0,0,0.2);
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 20px;
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  line-height: 1.6;
  color: var(--gray-800);
}

/* Typography */
h1, h2, h3, .brand-name {
  font-family: 'Space Grotesk', sans-serif;
}

.tagline {
  font-family: 'Playfair Display', serif;
  font-style: italic;
}

/* Dark Theme Container (Form Pages) */
.dark-theme {
  background: linear-gradient(135deg, var(--deep-charcoal) 0%, var(--charcoal-light) 100%);
  min-height: 100vh;
  color: var(--white);
}

/* Light Theme Container (Output Pages) */
.light-theme {
  background: var(--soft-cream);
  min-height: 100vh;
}

/* Animated Gradient Background */
.gradient-bg {
  background: linear-gradient(-45deg, var(--deep-charcoal), var(--charcoal-light), #1a1a3e, #2a1a4e);
  background-size: 400% 400%;
  animation: gradientShift 15s ease infinite;
}

@keyframes gradientShift {
  0% { background-position: 0% 50%; }
  50% { background-position: 100% 50%; }
  100% { background-position: 0% 50%; }
}

/* Container */
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 2rem;
}

.container-sm {
  max-width: 600px;
  margin: 0 auto;
  padding: 2rem;
}

/* Page Header */
.page-header {
  text-align: center;
  padding: 3rem 0;
}

.page-header h1 {
  font-size: 2.5rem;
  margin-bottom: 0.5rem;
  background: linear-gradient(90deg, var(--neon-cyan), var(--electric-violet));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.page-header p {
  font-size: 1.125rem;
  color: var(--gray-300);
}

/* Form Styles */
.form-card {
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: var(--radius-lg);
  padding: 2rem;
  backdrop-filter: blur(10px);
}

.form-group {
  margin-bottom: 1.5rem;
}

.form-label {
  display: block;
  font-weight: 500;
  margin-bottom: 0.5rem;
  color: var(--gray-200);
  font-size: 0.875rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.form-input,
.form-select {
  width: 100%;
  padding: 0.875rem 1rem;
  font-size: 1rem;
  font-family: 'Inter', sans-serif;
  border: 2px solid rgba(255, 255, 255, 0.1);
  border-radius: var(--radius-sm);
  background: rgba(255, 255, 255, 0.05);
  color: var(--white);
  transition: all 0.3s ease;
}

.form-input:focus,
.form-select:focus {
  outline: none;
  border-color: var(--electric-violet);
  box-shadow: 0 0 0 3px rgba(108, 92, 231, 0.2);
}

.form-select {
  cursor: pointer;
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='24' height='24' viewBox='0 0 24 24' fill='none' stroke='white' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='6 9 12 15 18 9'%3E%3C/polyline%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 1rem center;
  background-size: 1rem;
  padding-right: 2.5rem;
}

.form-select option {
  background: var(--deep-charcoal);
  color: var(--white);
}

/* Radio Buttons */
.radio-group {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
}

.radio-option {
  position: relative;
}

.radio-option input {
  position: absolute;
  opacity: 0;
  cursor: pointer;
}

.radio-label {
  display: inline-block;
  padding: 0.625rem 1.25rem;
  background: rgba(255, 255, 255, 0.05);
  border: 2px solid rgba(255, 255, 255, 0.1);
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: all 0.3s ease;
  font-size: 0.875rem;
}

.radio-option input:checked + .radio-label {
  background: var(--electric-violet);
  border-color: var(--electric-violet);
  color: var(--white);
}

.radio-option:hover .radio-label {
  border-color: var(--electric-violet);
}

/* Checkboxes */
.checkbox-group {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
  gap: 0.75rem;
}

.checkbox-option {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  cursor: pointer;
}

.checkbox-option input {
  width: 1.125rem;
  height: 1.125rem;
  accent-color: var(--electric-violet);
  cursor: pointer;
}

.checkbox-label {
  font-size: 0.875rem;
  color: var(--gray-200);
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 1rem 2rem;
  font-size: 1rem;
  font-weight: 600;
  font-family: 'Space Grotesk', sans-serif;
  border: none;
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: all 0.3s ease;
  text-decoration: none;
}

.btn-primary {
  background: linear-gradient(135deg, var(--warm-orange), #ff8c5a);
  color: var(--white);
  box-shadow: 0 4px 15px rgba(255, 107, 53, 0.4);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(255, 107, 53, 0.5);
}

.btn-secondary {
  background: var(--electric-violet);
  color: var(--white);
}

.btn-secondary:hover {
  background: var(--violet-light);
  transform: translateY(-2px);
}

.btn-outline {
  background: transparent;
  border: 2px solid var(--electric-violet);
  color: var(--electric-violet);
}

.btn-outline:hover {
  background: var(--electric-violet);
  color: var(--white);
}

.btn-lg {
  padding: 1.25rem 3rem;
  font-size: 1.125rem;
}

.btn-full {
  width: 100%;
}

/* Loading State */
.btn.loading {
  position: relative;
  color: transparent;
  pointer-events: none;
}

.btn.loading::after {
  content: '';
  position: absolute;
  width: 1.25rem;
  height: 1.25rem;
  border: 2px solid rgba(255, 255, 255, 0.3);
  border-top-color: var(--white);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
}

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

/* Brand Hero Section */
.brand-hero {
  background: linear-gradient(135deg, var(--deep-charcoal) 0%, var(--charcoal-light) 50%, var(--electric-violet) 100%);
  color: var(--white);
  padding: 4rem 2rem;
  text-align: center;
  position: relative;
  overflow: hidden;
}

.brand-hero::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: radial-gradient(circle at 30% 70%, rgba(108, 92, 231, 0.3) 0%, transparent 50%),
              radial-gradient(circle at 70% 30%, rgba(0, 212, 255, 0.2) 0%, transparent 50%);
  pointer-events: none;
}

.brand-hero-content {
  position: relative;
  z-index: 1;
  max-width: 800px;
  margin: 0 auto;
}

.brand-name {
  font-size: 3.5rem;
  font-weight: 700;
  margin-bottom: 1rem;
  text-shadow: 0 2px 20px rgba(0, 0, 0, 0.3);
}

.brand-tagline {
  font-family: 'Playfair Display', serif;
  font-style: italic;
  font-size: 1.5rem;
  color: var(--neon-cyan);
  margin-bottom: 2rem;
}

.brand-meta {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 2rem;
  margin-top: 2rem;
}

.meta-item {
  text-align: center;
}

.meta-label {
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--gray-300);
  margin-bottom: 0.25rem;
}

.meta-value {
  font-family: 'Space Grotesk', sans-serif;
  font-weight: 600;
  font-size: 1rem;
}

/* Brand Content Section */
.brand-content {
  background: var(--soft-cream);
  padding: 4rem 2rem;
}

.brand-section {
  max-width: 1000px;
  margin: 0 auto 3rem;
}

.section-title {
  font-family: 'Space Grotesk', sans-serif;
  font-size: 1.75rem;
  color: var(--deep-charcoal);
  margin-bottom: 1.5rem;
  position: relative;
  padding-left: 1rem;
}

.section-title::before {
  content: '';
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 4px;
  background: linear-gradient(180deg, var(--electric-violet), var(--neon-cyan));
  border-radius: 2px;
}

.concept-card {
  background: var(--white);
  border-radius: var(--radius-md);
  padding: 2rem;
  box-shadow: var(--shadow-md);
  line-height: 1.8;
  color: var(--gray-800);
}

/* Menu Items Grid */
.menu-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 1.5rem;
}

.menu-item {
  background: var(--white);
  border-radius: var(--radius-md);
  padding: 1.5rem;
  box-shadow: var(--shadow-sm);
  border-left: 4px solid var(--electric-violet);
  transition: all 0.3s ease;
}

.menu-item:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
}

.menu-item-name {
  font-family: 'Space Grotesk', sans-serif;
  font-weight: 600;
  font-size: 1.125rem;
  color: var(--deep-charcoal);
  margin-bottom: 0.5rem;
}

.menu-item-description {
  color: var(--gray-600);
  font-size: 0.875rem;
  margin-bottom: 1rem;
  line-height: 1.6;
}

.menu-item-price {
  font-family: 'Space Grotesk', sans-serif;
  font-weight: 700;
  font-size: 1.25rem;
  color: var(--warm-orange);
}

/* Dashboard Styles */
.dashboard-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 1rem;
  margin-bottom: 2rem;
  padding: 2rem;
  background: var(--white);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-sm);
}

.dashboard-title {
  font-size: 1.75rem;
  color: var(--deep-charcoal);
}

.brands-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: 1.5rem;
}

.brand-card {
  background: var(--white);
  border-radius: var(--radius-md);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  transition: all 0.3s ease;
  text-decoration: none;
  color: inherit;
  display: block;
}

.brand-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
}

.brand-card-header {
  background: linear-gradient(135deg, var(--deep-charcoal), var(--electric-violet));
  padding: 1.5rem;
  color: var(--white);
}

.brand-card-name {
  font-family: 'Space Grotesk', sans-serif;
  font-size: 1.25rem;
  font-weight: 600;
  margin-bottom: 0.25rem;
}

.brand-card-tagline {
  font-family: 'Playfair Display', serif;
  font-style: italic;
  font-size: 0.875rem;
  color: var(--neon-cyan);
}

.brand-card-body {
  padding: 1.25rem;
}

.brand-card-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  font-size: 0.875rem;
  color: var(--gray-600);
}

.brand-card-badge {
  display: inline-block;
  padding: 0.25rem 0.75rem;
  background: var(--gray-100);
  border-radius: 9999px;
  font-size: 0.75rem;
  font-weight: 500;
}

/* Empty State */
.empty-state {
  text-align: center;
  padding: 4rem 2rem;
  background: var(--white);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-sm);
}

.empty-state-icon {
  font-size: 4rem;
  margin-bottom: 1rem;
}

.empty-state-title {
  font-size: 1.5rem;
  color: var(--deep-charcoal);
  margin-bottom: 0.5rem;
}

.empty-state-text {
  color: var(--gray-600);
  margin-bottom: 1.5rem;
}

/* Back Link */
.back-link {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  color: var(--electric-violet);
  text-decoration: none;
  font-weight: 500;
  margin-bottom: 1.5rem;
  transition: color 0.3s ease;
}

.back-link:hover {
  color: var(--violet-light);
}

/* Navigation */
.nav-link {
  color: var(--neon-cyan);
  text-decoration: none;
  font-weight: 500;
  transition: color 0.3s ease;
}

.nav-link:hover {
  color: var(--white);
}

/* Actions Bar */
.actions-bar {
  display: flex;
  justify-content: center;
  gap: 1rem;
  padding: 2rem;
  background: var(--gray-100);
  flex-wrap: wrap;
}

/* Responsive */
@media (max-width: 768px) {
  .page-header h1 {
    font-size: 2rem;
  }

  .brand-name {
    font-size: 2.5rem;
  }

  .brand-tagline {
    font-size: 1.25rem;
  }

  .brand-meta {
    gap: 1rem;
  }

  .container,
  .container-sm {
    padding: 1rem;
  }

  .form-card {
    padding: 1.5rem;
  }

  .dashboard-header {
    flex-direction: column;
    text-align: center;
  }

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

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

/* Utility Classes */
.text-center {
  text-align: center;
}

.mt-1 { margin-top: 0.5rem; }
.mt-2 { margin-top: 1rem; }
.mt-3 { margin-top: 1.5rem; }
.mt-4 { margin-top: 2rem; }

.mb-1 { margin-bottom: 0.5rem; }
.mb-2 { margin-bottom: 1rem; }
.mb-3 { margin-bottom: 1.5rem; }
.mb-4 { margin-bottom: 2rem; }