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

/* CSS Variables */
:root {
  --primary: #0d9488;
  --primary-dark: #0f766e;
  --primary-light: #14b8a6;
  --secondary: #0ea5e9;
  --text-dark: #1e293b;
  --text-light: #64748b;
  --bg-white: #ffffff;
  --bg-light: #f8fafc;
  --bg-gray: #f1f5f9;
  --border: #e2e8f0;
  --success: #22c55e;
  --shadow: 0 4px 6px -1px rgb(0 0 0 / 0.1);
  --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.1);
}

/* Base Styles */
html {
  scroll-behavior: smooth;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, sans-serif;
  line-height: 1.6;
  color: var(--text-dark);
  background-color: var(--bg-white);
}

a {
  color: var(--primary);
  text-decoration: none;
}

a:hover {
  color: var(--primary-dark);
}

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

/* Container */
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 1.5rem;
}

/* Navigation */
.navbar {
  background: var(--bg-white);
  box-shadow: var(--shadow);
  position: sticky;
  top: 0;
  z-index: 100;
}

.nav-container {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 1rem 1.5rem;
  max-width: 1200px;
  margin: 0 auto;
}

.logo {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--primary);
}

.nav-links {
  display: flex;
  list-style: none;
  gap: 2rem;
}

.nav-links a {
  color: var(--text-dark);
  font-weight: 500;
  transition: color 0.2s;
}

.nav-links a:hover,
.nav-links a.active {
  color: var(--primary);
}

.nav-toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: 0.5rem;
}

.nav-toggle span {
  display: block;
  width: 25px;
  height: 3px;
  background: var(--text-dark);
  margin: 5px 0;
  transition: 0.3s;
}

/* Hero Section */
.hero {
  background: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
  color: white;
  padding: 6rem 1.5rem;
  text-align: center;
}

.hero h1 {
  font-size: 2.5rem;
  margin-bottom: 1rem;
  font-weight: 700;
}

.hero p {
  font-size: 1.25rem;
  max-width: 600px;
  margin: 0 auto 2rem;
  opacity: 0.95;
}

.hero-buttons {
  display: flex;
  gap: 1rem;
  justify-content: center;
  flex-wrap: wrap;
}

/* Buttons */
.btn {
  display: inline-block;
  padding: 0.875rem 2rem;
  border-radius: 8px;
  font-weight: 600;
  font-size: 1rem;
  cursor: pointer;
  transition: all 0.2s;
  border: none;
}

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

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

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

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

.btn-outline {
  background: transparent;
  border: 2px solid white;
  color: white;
}

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

.btn-pledge {
  background: var(--success);
  color: white;
  width: 100%;
  padding: 1rem;
  font-size: 1.125rem;
}

.btn-pledge:hover {
  background: #16a34a;
  color: white;
}

/* Sections */
.section {
  padding: 5rem 1.5rem;
}

.section-light {
  background: var(--bg-light);
}

.section-title {
  text-align: center;
  margin-bottom: 3rem;
}

.section-title h2 {
  font-size: 2rem;
  color: var(--text-dark);
  margin-bottom: 0.5rem;
}

.section-title p {
  color: var(--text-light);
  font-size: 1.125rem;
}

/* Cards Grid */
.cards-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 2rem;
  max-width: 1200px;
  margin: 0 auto;
}

/* Product Card */
.product-card {
  background: var(--bg-white);
  border-radius: 12px;
  overflow: hidden;
  box-shadow: var(--shadow);
  transition: transform 0.2s, box-shadow 0.2s;
}

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

.product-image {
  width: 100%;
  height: 200px;
  background: var(--bg-gray);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 4rem;
}

.product-content {
  padding: 1.5rem;
}

.product-content h3 {
  font-size: 1.25rem;
  margin-bottom: 0.5rem;
}

.product-content .description {
  color: var(--text-light);
  margin-bottom: 1rem;
}

.funding-goal {
  margin-bottom: 1rem;
}

.funding-goal .goal-text {
  display: flex;
  justify-content: space-between;
  font-size: 0.875rem;
  margin-bottom: 0.5rem;
}

.funding-goal .goal-amount {
  font-weight: 600;
  color: var(--primary);
}

.progress-bar {
  height: 8px;
  background: var(--bg-gray);
  border-radius: 4px;
  overflow: hidden;
}

.progress-bar .progress {
  height: 100%;
  background: var(--primary);
  border-radius: 4px;
  transition: width 0.3s;
}

/* Service Card */
.service-card {
  background: var(--bg-white);
  border-radius: 12px;
  padding: 2rem;
  box-shadow: var(--shadow);
  text-align: center;
  transition: transform 0.2s, box-shadow 0.2s;
}

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

.service-icon {
  width: 60px;
  height: 60px;
  background: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 1rem;
  font-size: 1.5rem;
}

.service-card h3 {
  font-size: 1.125rem;
  margin-bottom: 0.5rem;
}

.service-card p {
  color: var(--text-light);
  font-size: 0.9375rem;
}

/* Services Grid (for services page) */
.services-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 1.5rem;
  max-width: 1200px;
  margin: 0 auto;
}

/* Contact Form */
.contact-section {
  max-width: 600px;
  margin: 0 auto;
}

.contact-form {
  background: var(--bg-white);
  padding: 2rem;
  border-radius: 12px;
  box-shadow: var(--shadow);
}

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

.form-group label {
  display: block;
  margin-bottom: 0.5rem;
  font-weight: 500;
}

.form-group input,
.form-group textarea,
.form-group select {
  width: 100%;
  padding: 0.75rem 1rem;
  border: 2px solid var(--border);
  border-radius: 8px;
  font-size: 1rem;
  font-family: inherit;
  transition: border-color 0.2s;
}

.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
  outline: none;
  border-color: var(--primary);
}

.form-group textarea {
  min-height: 120px;
  resize: vertical;
}

/* Footer */
.footer {
  background: var(--text-dark);
  color: white;
  padding: 3rem 1.5rem;
  text-align: center;
}

.footer p {
  opacity: 0.8;
}

/* Intro Grid (Home page) */
.intro-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 2rem;
  max-width: 900px;
  margin: 0 auto;
}

.intro-card {
  text-align: center;
  padding: 2rem;
}

.intro-card h3 {
  font-size: 1.25rem;
  margin-bottom: 0.75rem;
  color: var(--text-dark);
}

.intro-card p {
  color: var(--text-light);
  margin-bottom: 1.5rem;
}

/* Page Header (for inner pages) */
.page-header {
  background: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
  color: white;
  padding: 4rem 1.5rem;
  text-align: center;
}

.page-header h1 {
  font-size: 2.25rem;
  margin-bottom: 0.5rem;
}

.page-header p {
  opacity: 0.95;
  font-size: 1.125rem;
}

/* Alert Messages */
.alert {
  padding: 1rem;
  border-radius: 8px;
  margin-bottom: 1rem;
  display: none;
}

.alert-success {
  background: #dcfce7;
  color: #166534;
  border: 1px solid #86efac;
}

.alert-error {
  background: #fee2e2;
  color: #991b1b;
  border: 1px solid #fca5a5;
}

/* Modal */
.modal-overlay {
  display: none;
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(0, 0, 0, 0.6);
  z-index: 200;
  align-items: center;
  justify-content: center;
  padding: 1rem;
}

.modal-overlay.active {
  display: flex;
}

.modal {
  background: var(--bg-white);
  border-radius: 12px;
  padding: 2rem;
  max-width: 450px;
  width: 100%;
  position: relative;
  box-shadow: var(--shadow-lg);
}

.modal-close {
  position: absolute;
  top: 1rem;
  right: 1rem;
  background: none;
  border: none;
  font-size: 1.5rem;
  cursor: pointer;
  color: var(--text-light);
  line-height: 1;
}

.modal-close:hover {
  color: var(--text-dark);
}

.modal h2 {
  margin-bottom: 0.5rem;
  font-size: 1.5rem;
}

.modal-description {
  color: var(--text-light);
  margin-bottom: 1.5rem;
}

.payment-placeholder {
  margin-top: 1.5rem;
  padding-top: 1.5rem;
  border-top: 1px solid var(--border);
}

.payment-label {
  font-weight: 600;
  margin-bottom: 0.75rem;
}

.payment-coming-soon {
  background: var(--bg-gray);
  border: 2px dashed var(--border);
  border-radius: 8px;
  padding: 1.5rem;
  text-align: center;
  color: var(--text-light);
  font-size: 0.9375rem;
}

/* Responsive */
@media (max-width: 768px) {
  .nav-toggle {
    display: block;
  }

  .nav-links {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: var(--bg-white);
    flex-direction: column;
    padding: 1rem;
    gap: 0;
    box-shadow: var(--shadow);
  }

  .nav-links.active {
    display: flex;
  }

  .nav-links li {
    padding: 0.75rem 0;
    border-bottom: 1px solid var(--border);
  }

  .nav-links li:last-child {
    border-bottom: none;
  }

  .hero h1 {
    font-size: 2rem;
  }

  .hero p {
    font-size: 1.125rem;
  }

  .section-title h2 {
    font-size: 1.75rem;
  }

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

@media (max-width: 480px) {
  .hero {
    padding: 4rem 1rem;
  }

  .hero h1 {
    font-size: 1.75rem;
  }

  .section {
    padding: 3rem 1rem;
  }

  .btn {
    padding: 0.75rem 1.5rem;
  }
}