/* Kitchen Optimizer - Rebuild CSS */
/* Mobile-first, Vercel-inspired minimal design */

:root {
  /* Colors */
  --primary: #FF6B35;
  --primary-hover: #e55a2b;
  --primary-light: #FFF4F0;
  --secondary: #004E89;
  --bg: #FAFAFA;
  --surface: #FFFFFF;
  --text: #1A1A2E;
  --text-secondary: #6B7280;
  --border: #E5E7EB;
  
  /* Spacing */
  --space-xs: 4px;
  --space-sm: 8px;
  --space-md: 16px;
  --space-lg: 24px;
  --space-xl: 32px;
  --space-2xl: 48px;
  --space-3xl: 64px;
  --space-4xl: 96px;
  
  /* Typography */
  --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
}

/* Reset */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-sans);
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

/* Container */
.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--space-lg);
}

/* Header */
.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: 72px;
  background: rgba(255, 255, 255, 0.9);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
  z-index: 1000;
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
}

.logo {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  font-weight: 600;
  font-size: 18px;
  color: var(--text);
  text-decoration: none;
}

.logo-icon {
  width: 36px;
  height: 36px;
  background: var(--primary);
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.logo-icon svg {
  width: 20px;
  height: 20px;
  color: white;
}

.nav {
  display: none;
  align-items: center;
  gap: var(--space-xl);
}

@media (min-width: 1024px) {
  .nav {
    display: flex;
  }
}

.nav-link {
  font-size: 15px;
  font-weight: 500;
  color: var(--text-secondary);
  text-decoration: none;
  transition: color 0.15s ease;
}

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

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 12px 24px;
  font-size: 15px;
  font-weight: 600;
  border-radius: 8px;
  text-decoration: none;
  transition: all 0.15s ease;
  cursor: pointer;
  border: none;
}

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

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

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

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

/* Mobile menu */
.mobile-menu-btn {
  display: block;
  background: none;
  border: none;
  font-size: 24px;
  cursor: pointer;
  padding: var(--space-sm);
}

@media (min-width: 1024px) {
  .mobile-menu-btn {
    display: none;
  }
}

/* Hero Section */
.hero {
  padding-top: 120px;
  padding-bottom: var(--space-4xl);
  min-height: 100vh;
  display: flex;
  align-items: center;
  background: linear-gradient(180deg, #1A1A2E 0%, #16162A 100%);
  position: relative;
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: 
    radial-gradient(ellipse 80% 50% at 50% -20%, rgba(255, 107, 53, 0.15), transparent),
    radial-gradient(ellipse 60% 40% at 80% 60%, rgba(0, 78, 137, 0.1), transparent);
  pointer-events: none;
}

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

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: var(--space-sm);
  padding: 8px 16px;
  background: rgba(255, 107, 53, 0.15);
  border: 1px solid rgba(255, 107, 53, 0.3);
  border-radius: 100px;
  font-size: 14px;
  font-weight: 500;
  color: var(--primary);
  margin-bottom: var(--space-lg);
}

.hero-badge-dot {
  width: 6px;
  height: 6px;
  background: var(--primary);
  border-radius: 50%;
}

.hero h1 {
  font-size: 40px;
  line-height: 1.15;
  font-weight: 700;
  color: white;
  margin-bottom: var(--space-lg);
  letter-spacing: -0.02em;
}

@media (min-width: 768px) {
  .hero h1 {
    font-size: 56px;
  }
}

@media (min-width: 1024px) {
  .hero h1 {
    font-size: 64px;
  }
}

.hero h1 .highlight {
  color: var(--primary);
}

.hero-subtitle {
  font-size: 18px;
  line-height: 1.6;
  color: rgba(255, 255, 255, 0.7);
  margin-bottom: var(--space-xl);
  max-width: 560px;
  margin-left: auto;
  margin-right: auto;
}

@media (min-width: 768px) {
  .hero-subtitle {
    font-size: 20px;
  }
}

.hero-subtitle strong {
  color: white;
  font-weight: 600;
}

.hero-ctas {
  display: flex;
  flex-direction: column;
  gap: var(--space-md);
  justify-content: center;
}

@media (min-width: 480px) {
  .hero-ctas {
    flex-direction: row;
  }
}

.hero-ctas .btn {
  min-width: 180px;
}

/* Stats bar */
.hero-stats {
  display: flex;
  justify-content: center;
  gap: var(--space-2xl);
  margin-top: var(--space-3xl);
  padding-top: var(--space-xl);
  border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.hero-stat {
  text-align: center;
}

.hero-stat-value {
  font-size: 28px;
  font-weight: 700;
  color: var(--primary);
  display: block;
}

.hero-stat-label {
  font-size: 14px;
  color: rgba(255, 255, 255, 0.5);
  margin-top: 2px;
}

/* Section base */
.section {
  padding: var(--space-4xl) 0;
}

.section-header {
  text-align: center;
  max-width: 640px;
  margin: 0 auto var(--space-3xl);
}

.section-label {
  font-size: 13px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--primary);
  margin-bottom: var(--space-sm);
}

.section-title {
  font-size: 32px;
  font-weight: 700;
  color: var(--text);
  letter-spacing: -0.02em;
}

@media (min-width: 768px) {
  .section-title {
    font-size: 40px;
  }
}

.section-subtitle {
  font-size: 18px;
  color: var(--text-secondary);
  margin-top: var(--space-md);
}

/* Grid */
.grid {
  display: grid;
  gap: var(--space-lg);
}

.grid-2 {
  grid-template-columns: 1fr;
}

@media (min-width: 768px) {
  .grid-2 {
    grid-template-columns: repeat(2, 1fr);
  }
}

.grid-3 {
  grid-template-columns: 1fr;
}

@media (min-width: 768px) {
  .grid-3 {
    grid-template-columns: repeat(3, 1fr);
  }
}

/* Cards */
.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: var(--space-xl);
  transition: all 0.2s ease;
}

.card:hover {
  border-color: var(--primary);
  box-shadow: 0 8px 30px rgba(0, 0, 0, 0.08);
}

.card-icon {
  width: 48px;
  height: 48px;
  background: var(--primary-light);
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: var(--space-md);
}

.card-icon svg {
  width: 24px;
  height: 24px;
  color: var(--primary);
}

.card h3 {
  font-size: 18px;
  font-weight: 600;
  margin-bottom: var(--space-sm);
}

.card p {
  font-size: 15px;
  color: var(--text-secondary);
  line-height: 1.6;
}

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

.animate-fade-in {
  animation: fadeInUp 0.6s ease forwards;
}

.animate-delay-1 { animation-delay: 0.1s; }
.animate-delay-2 { animation-delay: 0.2s; }
.animate-delay-3 { animation-delay: 0.3s; }
.animate-delay-4 { animation-delay: 0.4s; }