/* EcoCup - Professional Landing Page Styles */

:root {
  /* EcoCup Brand Colors */
  --color-primary: #87a96b;
  --color-primary-dark: #6d8a54;
  --color-background: #f8f6f0;
  --color-foreground: #2c3e50;
  --color-muted: #f0ede5;
  --color-muted-foreground: #6b7280;
  --color-accent: #d2691e;
  --color-border: #e5e2d8;
  --color-card: #ffffff;
  
  /* Spacing */
  --spacing-xs: 0.5rem;
  --spacing-sm: 1rem;
  --spacing-md: 1.5rem;
  --spacing-lg: 2rem;
  --spacing-xl: 3rem;
  --spacing-2xl: 4rem;
  --spacing-3xl: 6rem;
  
  /* Typography */
  --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --font-size-sm: 0.875rem;
  --font-size-base: 1rem;
  --font-size-lg: 1.125rem;
  --font-size-xl: 1.25rem;
  --font-size-2xl: 1.5rem;
  --font-size-3xl: 1.875rem;
  --font-size-4xl: 2.25rem;
  --font-size-5xl: 3rem;
  
  /* Shadows */
  --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
  --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1);
  
  /* Border Radius */
  --radius-sm: 0.375rem;
  --radius-md: 0.5rem;
  --radius-lg: 1rem;
  --radius-xl: 1.5rem;
}

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

html {
  scroll-behavior: smooth;
}

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

.container {
  width: 100%;
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 var(--spacing-sm);
}

@media (min-width: 640px) {
  .container {
    padding: 0 var(--spacing-md);
  }
}

@media (min-width: 1024px) {
  .container {
    padding: 0 var(--spacing-lg);
  }
}

/* Navigation */
nav {
  position: sticky;
  top: 0;
  z-index: 50;
  background-color: rgba(248, 246, 240, 0.95);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--color-border);
}

.nav-container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 4rem;
}

.nav-logo {
  display: flex;
  align-items: center;
  gap: var(--spacing-xs);
  text-decoration: none;
  color: var(--color-foreground);
}

.nav-logo svg {
  width: 1.5rem;
  height: 1.5rem;
  color: var(--color-primary);
}

.nav-logo span {
  font-size: var(--font-size-xl);
  font-weight: 700;
}

.nav-links {
  display: none;
  gap: var(--spacing-md);
}

@media (min-width: 768px) {
  .nav-links {
    display: flex;
  }
}

.nav-links a {
  font-size: var(--font-size-sm);
  font-weight: 500;
  color: var(--color-muted-foreground);
  text-decoration: none;
  transition: color 0.2s;
}

.nav-links a:hover {
  color: var(--color-foreground);
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.625rem 1.5rem;
  font-size: var(--font-size-base);
  font-weight: 500;
  border-radius: var(--radius-md);
  border: none;
  cursor: pointer;
  transition: all 0.2s;
  text-decoration: none;
}

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

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

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

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

.btn-lg {
  padding: 0.875rem 2rem;
  font-size: var(--font-size-lg);
}

/* Badge */
.badge {
  display: inline-flex;
  align-items: center;
  padding: 0.375rem 0.75rem;
  font-size: var(--font-size-sm);
  font-weight: 500;
  border-radius: var(--radius-md);
  background-color: rgba(135, 169, 107, 0.1);
  color: var(--color-primary);
  border: 1px solid rgba(135, 169, 107, 0.2);
}

/* Hero Section */
.hero {
  padding: 5rem 0 8rem;
  position: relative;
  overflow: hidden;
}

.hero-grid {
  display: grid;
  gap: var(--spacing-xl);
  align-items: center;
}

@media (min-width: 1024px) {
  .hero-grid {
    grid-template-columns: 1fr 1fr;
  }
}

.hero-content {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-lg);
}

.hero h1 {
  font-size: var(--font-size-4xl);
  font-weight: 700;
  line-height: 1.2;
  color: var(--color-foreground);
}

@media (min-width: 768px) {
  .hero h1 {
    font-size: var(--font-size-5xl);
  }
}

.hero p {
  font-size: var(--font-size-lg);
  color: var(--color-muted-foreground);
}

@media (min-width: 768px) {
  .hero p {
    font-size: var(--font-size-xl);
  }
}

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

@media (min-width: 640px) {
  .hero-buttons {
    flex-direction: row;
  }
}

.hero-features {
  display: flex;
  flex-wrap: wrap;
  gap: var(--spacing-md);
  padding-top: var(--spacing-sm);
}

.hero-feature {
  display: flex;
  align-items: center;
  gap: var(--spacing-xs);
  font-size: var(--font-size-sm);
  color: var(--color-muted-foreground);
}

.hero-feature svg {
  width: 1.25rem;
  height: 1.25rem;
  color: var(--color-primary);
}

.hero-stats {
  display: flex;
  gap: var(--spacing-lg);
  padding-top: var(--spacing-sm);
}

.stat {
  display: flex;
  flex-direction: column;
}

.stat-value {
  font-size: var(--font-size-3xl);
  font-weight: 700;
  color: var(--color-primary);
}

.stat-label {
  font-size: var(--font-size-sm);
  color: var(--color-muted-foreground);
}

.hero-image {
  position: relative;
}

.hero-image::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(135, 169, 107, 0.2), rgba(210, 105, 30, 0.2));
  border-radius: var(--radius-xl);
  filter: blur(60px);
  z-index: -1;
}

.hero-image img {
  width: 100%;
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-xl);
}

/* Section Styles */
section {
  padding: 5rem 0;
}

.section-muted {
  background-color: rgba(240, 237, 229, 0.3);
}

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

.section-title {
  font-size: var(--font-size-3xl);
  font-weight: 700;
  text-align: center;
  margin-bottom: var(--spacing-md);
}

@media (min-width: 768px) {
  .section-title {
    font-size: var(--font-size-4xl);
  }
}

.section-subtitle {
  font-size: var(--font-size-lg);
  color: var(--color-muted-foreground);
  text-align: center;
  max-width: 48rem;
  margin: 0 auto var(--spacing-xl);
}

/* Cards */
.card-grid {
  display: grid;
  gap: var(--spacing-lg);
  margin-top: var(--spacing-xl);
}

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

@media (min-width: 1024px) {
  .card-grid-4 {
    grid-template-columns: repeat(4, 1fr);
  }
  
  .card-grid-3 {
    grid-template-columns: repeat(3, 1fr);
  }
}

.card {
  background-color: var(--color-card);
  border: 2px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--spacing-md);
  transition: border-color 0.2s;
}

.card:hover {
  border-color: var(--color-primary);
}

.card-icon {
  width: 3rem;
  height: 3rem;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: var(--spacing-sm);
}

.card-icon-primary {
  background-color: rgba(135, 169, 107, 0.1);
}

.card-icon-accent {
  background-color: rgba(210, 105, 30, 0.1);
}

.card-icon svg {
  width: 1.5rem;
  height: 1.5rem;
}

.card-icon-primary svg {
  color: var(--color-primary);
}

.card-icon-accent svg {
  color: var(--color-accent);
}

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

.card p {
  color: var(--color-muted-foreground);
  line-height: 1.6;
}

/* Product Section */
.product-grid {
  display: grid;
  gap: var(--spacing-xl);
  align-items: center;
}

@media (min-width: 1024px) {
  .product-grid {
    grid-template-columns: 1fr 1fr;
  }
}

.product-image img {
  width: 100%;
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-lg);
}

.product-content {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-md);
}

.product-content h2 {
  font-size: var(--font-size-3xl);
  font-weight: 700;
}

@media (min-width: 768px) {
  .product-content h2 {
    font-size: var(--font-size-4xl);
  }
}

.product-content p {
  font-size: var(--font-size-lg);
  color: var(--color-muted-foreground);
  line-height: 1.7;
}

/* About Section */
.about-content {
  max-width: 56rem;
  margin: 0 auto;
  text-align: center;
  display: flex;
  flex-direction: column;
  gap: var(--spacing-md);
}

.about-content h2 {
  font-size: var(--font-size-3xl);
  font-weight: 700;
}

@media (min-width: 768px) {
  .about-content h2 {
    font-size: var(--font-size-4xl);
  }
}

.about-content p {
  font-size: var(--font-size-lg);
  color: var(--color-muted-foreground);
  line-height: 1.7;
}

/* Testimonials */
.stars {
  display: flex;
  gap: 0.25rem;
  margin-bottom: var(--spacing-sm);
}

.star {
  width: 1.25rem;
  height: 1.25rem;
  fill: var(--color-primary);
  color: var(--color-primary);
}

.testimonial-author {
  margin-top: var(--spacing-sm);
}

.testimonial-name {
  font-weight: 600;
  color: var(--color-foreground);
}

.testimonial-role {
  font-size: var(--font-size-sm);
  color: var(--color-muted-foreground);
}

/* FAQ */
.faq-container {
  max-width: 48rem;
  margin: 0 auto;
}

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

.faq-item h3 {
  font-size: var(--font-size-lg);
  font-weight: 600;
  margin-bottom: var(--spacing-xs);
}

/* CTA Section */
.cta-content {
  text-align: center;
  display: flex;
  flex-direction: column;
  gap: var(--spacing-lg);
  align-items: center;
}

.cta-content h2 {
  font-size: var(--font-size-3xl);
  font-weight: 700;
}

@media (min-width: 768px) {
  .cta-content h2 {
    font-size: var(--font-size-5xl);
  }
}

.cta-content p {
  font-size: var(--font-size-lg);
  max-width: 42rem;
  opacity: 0.9;
}

@media (min-width: 768px) {
  .cta-content p {
    font-size: var(--font-size-xl);
  }
}

.cta-features {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: var(--spacing-md);
  padding-top: var(--spacing-sm);
}

.cta-feature {
  display: flex;
  align-items: center;
  gap: var(--spacing-xs);
  font-size: var(--font-size-sm);
}

.cta-feature svg {
  width: 1.25rem;
  height: 1.25rem;
}

/* Footer */
footer {
  padding: var(--spacing-xl) 0;
  background-color: rgba(240, 237, 229, 0.3);
  border-top: 1px solid var(--color-border);
}

.footer-grid {
  display: grid;
  gap: var(--spacing-lg);
  margin-bottom: var(--spacing-xl);
}

@media (min-width: 768px) {
  .footer-grid {
    grid-template-columns: repeat(4, 1fr);
  }
}

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

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

.footer-logo svg {
  width: 1.5rem;
  height: 1.5rem;
  color: var(--color-primary);
}

.footer-logo span {
  font-size: var(--font-size-xl);
  font-weight: 700;
}

.footer-tagline {
  font-size: var(--font-size-sm);
  color: var(--color-muted-foreground);
}

.footer-section h3 {
  font-weight: 600;
  margin-bottom: var(--spacing-sm);
}

.footer-links {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: var(--spacing-xs);
}

.footer-links a {
  font-size: var(--font-size-sm);
  color: var(--color-muted-foreground);
  text-decoration: none;
  transition: color 0.2s;
}

.footer-links a:hover {
  color: var(--color-foreground);
}

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

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

.mb-4 {
  margin-bottom: var(--spacing-sm);
}

.mb-8 {
  margin-bottom: var(--spacing-lg);
}

.mt-8 {
  margin-top: var(--spacing-lg);
}