/* ===========================================
   WherePut Landing Page - CSS Styles
   =========================================== */

/* CSS Variables */
:root {
  /* Colors */
  --color-primary: #6366f1;
  --color-primary-dark: #4f46e5;
  --color-primary-light: #818cf8;
  --color-secondary: #0ea5e9;
  
  --color-bg: #0f0f14;
  --color-bg-secondary: #16161d;
  --color-bg-tertiary: #1e1e27;
  --color-bg-card: #1a1a23;
  
  --color-text: #f4f4f5;
  --color-text-secondary: #a1a1aa;
  --color-text-muted: #71717a;
  
  --color-border: #27272a;
  --color-border-light: #3f3f46;
  
  --color-success: #22c55e;
  --color-warning: #f59e0b;
  --color-error: #ef4444;
  
  /* Gradients */
  --gradient-primary: linear-gradient(135deg, #6366f1 0%, #0ea5e9 100%);
  --gradient-text: linear-gradient(135deg, #6366f1 0%, #06b6d4 50%, #0ea5e9 100%);
  --gradient-glow: radial-gradient(ellipse at center, rgba(99, 102, 241, 0.15) 0%, transparent 70%);
  
  /* Shadows */
  --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.4);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.4), 0 2px 4px -2px rgba(0, 0, 0, 0.4);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.4), 0 4px 6px -4px rgba(0, 0, 0, 0.4);
  --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.4), 0 8px 10px -6px rgba(0, 0, 0, 0.4);
  --shadow-glow: 0 0 40px rgba(99, 102, 241, 0.3);
  
  /* Spacing */
  --spacing-xs: 0.25rem;
  --spacing-sm: 0.5rem;
  --spacing-md: 1rem;
  --spacing-lg: 1.5rem;
  --spacing-xl: 2rem;
  --spacing-2xl: 3rem;
  --spacing-3xl: 4rem;
  
  /* Border Radius */
  --radius-sm: 0.375rem;
  --radius-md: 0.5rem;
  --radius-lg: 0.75rem;
  --radius-xl: 1rem;
  --radius-2xl: 1.5rem;
  --radius-full: 9999px;
  
  /* Transitions */
  --transition-fast: 150ms ease;
  --transition-base: 200ms ease;
  --transition-slow: 300ms ease;
  
  /* Font */
  --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
}

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

html {
  scroll-behavior: smooth;
}

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

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

a {
  color: inherit;
  text-decoration: none;
}

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

/* ===========================================
   Typography
   =========================================== */

.section-label {
  display: inline-block;
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--color-primary-light);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin-bottom: var(--spacing-md);
}

.section-title {
  font-size: clamp(2rem, 5vw, 3rem);
  font-weight: 800;
  line-height: 1.2;
  margin-bottom: var(--spacing-lg);
}

.section-subtitle {
  font-size: 1.125rem;
  color: var(--color-text-secondary);
  max-width: 600px;
  margin: 0 auto var(--spacing-2xl);
}

.gradient-text {
  background: var(--gradient-text);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

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

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--spacing-sm);
  padding: var(--spacing-md) var(--spacing-xl);
  font-size: 1rem;
  font-weight: 600;
  border-radius: var(--radius-lg);
  border: none;
  cursor: pointer;
  transition: all var(--transition-base);
  text-decoration: none;
}

.btn-primary {
  background: var(--gradient-primary);
  color: white;
  box-shadow: var(--shadow-md), 0 0 20px rgba(99, 102, 241, 0.3);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg), 0 0 30px rgba(99, 102, 241, 0.4);
}

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

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

.btn-large {
  padding: var(--spacing-lg) var(--spacing-2xl);
  font-size: 1.125rem;
}

.btn-block {
  width: 100%;
}

.btn-nav {
  padding: var(--spacing-sm) var(--spacing-lg);
  font-size: 0.875rem;
}

/* ===========================================
   Navigation
   =========================================== */

.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  background: rgba(15, 15, 20, 0.8);
  backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--color-border);
}

.nav-container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
}

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

.logo-img {
  width: 36px;
  height: 36px;
  border-radius: var(--radius-md);
}

.logo-text {
  font-size: 1.25rem;
  font-weight: 700;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: var(--spacing-xl);
}

.nav-links a:not(.btn) {
  color: var(--color-text-secondary);
  font-weight: 500;
  transition: color var(--transition-fast);
}

.nav-links a:not(.btn):hover {
  color: var(--color-text);
}

.mobile-menu-btn {
  display: none;
  background: none;
  border: none;
  color: var(--color-text);
  cursor: pointer;
  padding: var(--spacing-sm);
}

/* ===========================================
   Hero Section
   =========================================== */

.hero {
  padding: 160px 0 80px;
  text-align: center;
  position: relative;
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  top: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 100%;
  height: 100%;
  background: var(--gradient-glow);
  pointer-events: none;
}

.hero-badge {
  margin-bottom: var(--spacing-xl);
}

.badge {
  display: inline-block;
  padding: var(--spacing-sm) var(--spacing-lg);
  background: rgba(99, 102, 241, 0.15);
  border: 1px solid rgba(99, 102, 241, 0.3);
  border-radius: var(--radius-full);
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--color-primary-light);
}

.hero-title {
  font-size: clamp(2.5rem, 6vw, 4rem);
  font-weight: 800;
  line-height: 1.1;
  margin-bottom: var(--spacing-xl);
}

.hero-subtitle {
  font-size: 1.25rem;
  color: var(--color-text-secondary);
  max-width: 700px;
  margin: 0 auto var(--spacing-2xl);
}

.hero-cta {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--spacing-md);
  margin-bottom: var(--spacing-2xl);
}

.download-buttons {
  display: flex;
  gap: var(--spacing-md);
  flex-wrap: wrap;
  justify-content: center;
}

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

.hero-note {
  font-size: 0.875rem;
  color: var(--color-text-muted);
}

.hero-platforms {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--spacing-lg);
  color: var(--color-text-muted);
  font-size: 0.875rem;
}

.platforms {
  display: flex;
  gap: var(--spacing-lg);
}

.platform {
  display: flex;
  align-items: center;
  gap: var(--spacing-xs);
  color: var(--color-text-secondary);
}

.hero-image {
  position: relative;
  margin-top: var(--spacing-3xl);
  padding: 0 var(--spacing-xl);
}

.screenshot {
  max-width: 1000px;
  margin: 0 auto;
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-xl), var(--shadow-glow);
  border: 1px solid var(--color-border);
}

.hero-glow {
  position: absolute;
  bottom: -50%;
  left: 50%;
  transform: translateX(-50%);
  width: 80%;
  height: 100%;
  background: radial-gradient(ellipse at center, rgba(99, 102, 241, 0.2) 0%, transparent 70%);
  pointer-events: none;
}

/* ===========================================
   Problem Section
   =========================================== */

.problem {
  padding: var(--spacing-3xl) 0;
  background: var(--color-bg-secondary);
}

.problem .section-title {
  text-align: center;
  margin-bottom: var(--spacing-2xl);
}

.problem-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: var(--spacing-lg);
}

.problem-card {
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
  padding: var(--spacing-xl);
  text-align: center;
  transition: all var(--transition-base);
}

.problem-card:hover {
  border-color: var(--color-border-light);
  transform: translateY(-4px);
}

.problem-icon {
  font-size: 2.5rem;
  margin-bottom: var(--spacing-md);
}

.problem-card p {
  color: var(--color-text-secondary);
  font-size: 1.125rem;
}

.problem-card strong {
  color: var(--color-text);
}

/* ===========================================
   Solution Section
   =========================================== */

.solution {
  padding: var(--spacing-3xl) 0;
}

.solution-content {
  text-align: center;
}

.solution-example {
  max-width: 600px;
  margin: var(--spacing-2xl) auto 0;
}

.search-demo {
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
  overflow: hidden;
}

.search-bar {
  display: flex;
  align-items: center;
  gap: var(--spacing-md);
  padding: var(--spacing-lg);
  background: var(--color-bg-tertiary);
  border-bottom: 1px solid var(--color-border);
  color: var(--color-text-secondary);
}

.search-text {
  color: var(--color-text);
}

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

.result-item {
  display: flex;
  align-items: center;
  gap: var(--spacing-md);
  padding: var(--spacing-md);
  border-radius: var(--radius-md);
  transition: background var(--transition-fast);
}

.result-item:hover {
  background: var(--color-bg-tertiary);
}

.result-icon {
  font-size: 1.5rem;
}

.result-info {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  text-align: left;
}

.result-name {
  font-weight: 600;
}

.result-context {
  font-size: 0.875rem;
  color: var(--color-text-muted);
}

/* ===========================================
   Features Section
   =========================================== */

.features {
  padding: var(--spacing-3xl) 0;
  background: var(--color-bg-secondary);
  text-align: center;
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: var(--spacing-lg);
  text-align: left;
}

.feature-card {
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
  padding: var(--spacing-xl);
  transition: all var(--transition-base);
}

.feature-card:hover {
  border-color: var(--color-primary);
  transform: translateY(-4px);
  box-shadow: 0 0 30px rgba(99, 102, 241, 0.15);
}

.feature-icon {
  width: 56px;
  height: 56px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(99, 102, 241, 0.15);
  border-radius: var(--radius-lg);
  color: var(--color-primary-light);
  margin-bottom: var(--spacing-lg);
}

.feature-card h3 {
  font-size: 1.25rem;
  font-weight: 700;
  margin-bottom: var(--spacing-sm);
}

.feature-card p {
  color: var(--color-text-secondary);
}

/* ===========================================
   How It Works Section
   =========================================== */

.how-it-works {
  padding: var(--spacing-3xl) 0;
  text-align: center;
}

.steps {
  display: flex;
  align-items: flex-start;
  justify-content: center;
  gap: var(--spacing-lg);
  flex-wrap: wrap;
  margin-top: var(--spacing-2xl);
}

.step {
  flex: 1;
  min-width: 250px;
  max-width: 300px;
  text-align: center;
}

.step-number {
  width: 48px;
  height: 48px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--gradient-primary);
  border-radius: var(--radius-full);
  font-size: 1.25rem;
  font-weight: 700;
  margin: 0 auto var(--spacing-lg);
}

.step h3 {
  font-size: 1.25rem;
  font-weight: 700;
  margin-bottom: var(--spacing-sm);
}

.step p {
  color: var(--color-text-secondary);
}

.step-arrow {
  font-size: 2rem;
  color: var(--color-text-muted);
  padding-top: var(--spacing-lg);
}

/* ===========================================
   Pricing Section
   =========================================== */

.pricing {
  padding: var(--spacing-3xl) 0;
  background: var(--color-bg-secondary);
  text-align: center;
}

.pricing-cards {
  display: flex;
  justify-content: center;
  gap: var(--spacing-xl);
  flex-wrap: wrap;
  margin-top: var(--spacing-2xl);
}

.pricing-card {
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-2xl);
  padding: var(--spacing-2xl);
  width: 100%;
  max-width: 380px;
  text-align: left;
  position: relative;
}

.pricing-card.featured {
  border-color: var(--color-primary);
  box-shadow: 0 0 40px rgba(99, 102, 241, 0.2);
}

.pricing-badge {
  position: absolute;
  top: -12px;
  left: 50%;
  transform: translateX(-50%);
  background: var(--gradient-primary);
  color: white;
  font-size: 0.875rem;
  font-weight: 600;
  padding: var(--spacing-xs) var(--spacing-lg);
  border-radius: var(--radius-full);
}

.pricing-header {
  margin-bottom: var(--spacing-xl);
}

.pricing-header h3 {
  font-size: 1.25rem;
  font-weight: 600;
  color: var(--color-text-secondary);
  margin-bottom: var(--spacing-md);
}

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

.price-original {
  font-size: 1.5rem;
  color: var(--color-text-muted);
  text-decoration: line-through;
}

.price-amount {
  font-size: 3rem;
  font-weight: 800;
}

.price-period {
  font-size: 1rem;
  color: var(--color-text-secondary);
}

.pricing-features {
  list-style: none;
  margin-bottom: var(--spacing-xl);
}

.pricing-features li {
  display: flex;
  align-items: center;
  gap: var(--spacing-md);
  padding: var(--spacing-sm) 0;
  color: var(--color-text-secondary);
}

.pricing-features li svg {
  flex-shrink: 0;
  color: var(--color-success);
}

.pricing-features li.disabled {
  color: var(--color-text-muted);
}

.pricing-features li.disabled svg {
  color: var(--color-text-muted);
}

.pricing-note {
  font-size: 0.875rem;
  color: var(--color-text-muted);
  text-align: center;
  margin-top: var(--spacing-md);
}

/* ===========================================
   Testimonials Section
   =========================================== */

.testimonials {
  padding: var(--spacing-3xl) 0;
  text-align: center;
}

.testimonials-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: var(--spacing-lg);
  margin-top: var(--spacing-2xl);
}

.testimonial-card {
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
  padding: var(--spacing-xl);
  text-align: left;
}

.testimonial-text {
  font-size: 1.125rem;
  color: var(--color-text);
  margin-bottom: var(--spacing-lg);
  line-height: 1.7;
}

.testimonial-author {
  display: flex;
  align-items: center;
  gap: var(--spacing-md);
}

.author-avatar {
  width: 48px;
  height: 48px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--gradient-primary);
  border-radius: var(--radius-full);
  font-weight: 700;
  font-size: 0.875rem;
}

.author-info {
  display: flex;
  flex-direction: column;
}

.author-name {
  font-weight: 600;
}

.author-title {
  font-size: 0.875rem;
  color: var(--color-text-muted);
}

/* ===========================================
   FAQ Section
   =========================================== */

.faq {
  padding: var(--spacing-3xl) 0;
  background: var(--color-bg-secondary);
  text-align: center;
}

.faq-list {
  max-width: 700px;
  margin: var(--spacing-2xl) auto 0;
  text-align: left;
}

.faq-item {
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  margin-bottom: var(--spacing-md);
  overflow: hidden;
}

.faq-item summary {
  padding: var(--spacing-lg);
  font-weight: 600;
  cursor: pointer;
  list-style: none;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

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

.faq-item summary::after {
  content: '+';
  font-size: 1.5rem;
  color: var(--color-text-muted);
  transition: transform var(--transition-fast);
}

.faq-item[open] summary::after {
  transform: rotate(45deg);
}

.faq-item p {
  padding: 0 var(--spacing-lg) var(--spacing-lg);
  color: var(--color-text-secondary);
}

/* ===========================================
   CTA Section
   =========================================== */

.cta {
  padding: var(--spacing-3xl) 0;
  text-align: center;
  background: var(--gradient-glow);
}

.cta h2 {
  font-size: clamp(1.75rem, 4vw, 2.5rem);
  font-weight: 800;
  margin-bottom: var(--spacing-md);
}

.cta p {
  font-size: 1.125rem;
  color: var(--color-text-secondary);
  margin-bottom: var(--spacing-xl);
}

/* ===========================================
   Footer
   =========================================== */

.footer {
  padding: var(--spacing-3xl) 0 var(--spacing-xl);
  background: var(--color-bg-secondary);
  border-top: 1px solid var(--color-border);
}

.footer-content {
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: var(--spacing-2xl);
  margin-bottom: var(--spacing-2xl);
}

.footer-brand {
  max-width: 300px;
}

.footer-logo {
  width: 40px;
  height: 40px;
  border-radius: var(--radius-md);
  margin-bottom: var(--spacing-md);
}

.footer-brand p {
  color: var(--color-text-secondary);
}

.footer-links {
  display: flex;
  gap: var(--spacing-3xl);
  flex-wrap: wrap;
}

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

.footer-column h4 {
  font-weight: 600;
  margin-bottom: var(--spacing-sm);
}

.footer-column a {
  color: var(--color-text-secondary);
  transition: color var(--transition-fast);
}

.footer-column a:hover {
  color: var(--color-text);
}

.footer-bottom {
  padding-top: var(--spacing-xl);
  border-top: 1px solid var(--color-border);
  text-align: center;
  color: var(--color-text-muted);
  font-size: 0.875rem;
}

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

@media (max-width: 768px) {
  .nav-links {
    display: none;
  }
  
  .mobile-menu-btn {
    display: block;
  }
  
  .hero {
    padding: 120px 0 60px;
  }
  
  .hero-title {
    font-size: 2rem;
  }
  
  .hero-subtitle {
    font-size: 1rem;
  }
  
  .step-arrow {
    display: none;
  }
  
  .steps {
    flex-direction: column;
    align-items: center;
  }
  
  .pricing-cards {
    flex-direction: column;
    align-items: center;
  }
  
  .footer-content {
    flex-direction: column;
  }
  
  .footer-links {
    gap: var(--spacing-xl);
  }
}

@media (max-width: 480px) {
  .container {
    padding: 0 var(--spacing-md);
  }
  
  .hero-platforms {
    flex-direction: column;
    gap: var(--spacing-sm);
  }
  
  .platforms {
    flex-direction: column;
    gap: var(--spacing-sm);
  }
}

/* ===========================================
   Animations
   =========================================== */

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

.hero-title,
.hero-subtitle,
.hero-cta {
  animation: fadeInUp 0.6s ease-out;
}

.hero-subtitle {
  animation-delay: 0.1s;
}

.hero-cta {
  animation-delay: 0.2s;
}