/* AvestAI Website Styles - Apple-inspired Design */

:root {
  --primary-blue: #00A8E8;
  --dark-gray: #1d1d1f;
  --medium-gray: #86868b;
  --light-gray: #f5f5f7;
  --white: #ffffff;
  --border-radius: 12px;
  --transition: all 0.3s ease;
}

/* Typography */
body {
  font-family: -apple-system, BlinkMacSystemFont, 'SF Pro Display', 'Segoe UI', 'Helvetica Neue', Arial, sans-serif;
  color: var(--dark-gray);
  background-color: var(--white);
  font-size: 17px;
  line-height: 1.6;
}

h1 {
  font-size: 56px;
  font-weight: 700;
  letter-spacing: -0.02em;
  margin-bottom: 20px;
}

h2 {
  font-size: 40px;
  font-weight: 700;
  letter-spacing: -0.01em;
  margin-bottom: 16px;
}

h3 {
  font-size: 28px;
  font-weight: 600;
  margin-bottom: 12px;
}

h4 {
  font-size: 21px;
  font-weight: 600;
  margin-bottom: 10px;
}

p {
  margin-bottom: 16px;
  color: var(--dark-gray);
}

.subheading {
  font-size: 21px;
  color: var(--medium-gray);
  line-height: 1.4;
  margin-bottom: 32px;
}

/* Header & Navigation */
header {
  background-color: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(20px);
  position: sticky;
  top: 0;
  z-index: 1000;
  border-bottom: 1px solid rgba(0, 0, 0, 0.1);
}

nav {
  max-width: 1200px;
  margin: 0 auto;
  padding: 16px 20px;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.logo {
  display: flex;
  align-items: center;
  gap: 12px;
}

.logo img {
  height: 40px;
  width: auto;
}

.logo-text {
  font-size: 24px;
  font-weight: 700;
  color: var(--dark-gray);
}

.nav-links {
  display: flex;
  gap: 32px;
  align-items: center;
}

.nav-links a {
  color: var(--dark-gray);
  font-size: 15px;
  transition: var(--transition);
  font-weight: 500;
}

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

.nav-links .cta-button {
  background-color: var(--primary-blue);
  color: var(--white);
  padding: 10px 20px;
  border-radius: 20px;
  font-weight: 600;
}

.nav-links .cta-button:hover {
  background-color: #0095d1;
  color: var(--white);
}

/* Mobile Menu Toggle */
.menu-toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: 8px;
}

.menu-toggle span {
  display: block;
  width: 24px;
  height: 2px;
  background-color: var(--dark-gray);
  margin: 5px 0;
  transition: var(--transition);
}

/* Container */
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 20px;
}

.section {
  padding: 80px 0;
}

.section-header {
  text-align: center;
  margin-bottom: 60px;
}

/* Hero Section */
.hero {
  text-align: center;
  padding: 100px 20px 80px;
  background: linear-gradient(135deg, #f5f5f7 0%, #ffffff 100%);
}

.hero-logo {
  max-width: 200px;
  margin: 0 auto 40px;
}

.hero h1 {
  max-width: 900px;
  margin: 0 auto 20px;
}

.hero .subheading {
  max-width: 700px;
  margin: 0 auto 40px;
}

.cta-buttons {
  display: flex;
  gap: 20px;
  justify-content: center;
  flex-wrap: wrap;
}

.btn {
  padding: 14px 32px;
  border-radius: 24px;
  font-size: 17px;
  font-weight: 600;
  cursor: pointer;
  transition: var(--transition);
  display: inline-block;
  text-align: center;
}

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

.btn-primary:hover {
  background-color: #0095d1;
  transform: translateY(-2px);
  box-shadow: 0 10px 20px rgba(0, 168, 232, 0.3);
}

.btn-secondary {
  background-color: transparent;
  color: var(--primary-blue);
  border: 2px solid var(--primary-blue);
}

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

/* Features Grid */
.features {
  background-color: var(--white);
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 40px;
}

.feature-card {
  text-align: center;
  padding: 40px 20px;
}

.feature-icon {
  font-size: 48px;
  margin-bottom: 20px;
}

.feature-card h3 {
  color: var(--dark-gray);
}

.feature-card p {
  color: var(--medium-gray);
  font-size: 17px;
  line-height: 1.5;
}

/* How It Works Section */
.how-it-works {
  background-color: var(--light-gray);
}

.steps {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 40px;
}

.step {
  background-color: var(--white);
  padding: 40px;
  border-radius: var(--border-radius);
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.05);
}

.step-number {
  display: inline-block;
  background-color: var(--primary-blue);
  color: var(--white);
  width: 48px;
  height: 48px;
  border-radius: 50%;
  text-align: center;
  line-height: 48px;
  font-size: 24px;
  font-weight: 700;
  margin-bottom: 20px;
}

.step h3 {
  color: var(--dark-gray);
  margin-bottom: 12px;
}

.step p {
  color: var(--medium-gray);
  font-size: 15px;
}

/* Pricing Section */
.pricing {
  background-color: var(--white);
}

.pricing-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 30px;
  margin-bottom: 60px;
}

.pricing-card {
  background-color: var(--white);
  border: 2px solid #e5e5e7;
  border-radius: var(--border-radius);
  padding: 40px;
  text-align: center;
  transition: var(--transition);
  position: relative;
}

.pricing-card:hover {
  border-color: var(--primary-blue);
  box-shadow: 0 12px 24px rgba(0, 168, 232, 0.15);
  transform: translateY(-4px);
}

.pricing-card.featured {
  border-color: var(--primary-blue);
  border-width: 3px;
  background: linear-gradient(135deg, #f5f9fc 0%, #ffffff 100%);
}

.featured-badge {
  position: absolute;
  top: -12px;
  right: 20px;
  background-color: var(--primary-blue);
  color: var(--white);
  padding: 6px 16px;
  border-radius: 12px;
  font-size: 13px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.pricing-card h3 {
  font-size: 24px;
  margin-bottom: 10px;
}

.price {
  font-size: 48px;
  font-weight: 700;
  color: var(--primary-blue);
  margin: 20px 0;
}

.pricing-features {
  text-align: left;
  margin: 30px 0;
}

.pricing-features li {
  padding: 12px 0;
  border-bottom: 1px solid #f5f5f7;
  font-size: 15px;
  color: var(--dark-gray);
}

.pricing-features li:before {
  content: "✓";
  color: var(--primary-blue);
  font-weight: 700;
  margin-right: 10px;
}

.pricing-features li:last-child {
  border-bottom: none;
}

/* Perfect For Section */
.perfect-for {
  background-color: var(--light-gray);
}

.perfect-for-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 30px;
}

.perfect-for-card {
  background-color: var(--white);
  padding: 30px;
  border-radius: var(--border-radius);
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.05);
}

.perfect-for-card h3 {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 21px;
  margin-bottom: 12px;
}

.perfect-for-card p {
  color: var(--medium-gray);
  font-size: 15px;
}

/* Comparison Table */
.comparison-table {
  width: 100%;
  margin: 40px 0;
  border-radius: var(--border-radius);
  overflow: hidden;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.08);
}

.comparison-table thead {
  background-color: var(--dark-gray);
  color: var(--white);
}

.comparison-table th,
.comparison-table td {
  padding: 16px;
  text-align: left;
  border-bottom: 1px solid #e5e5e7;
}

.comparison-table th {
  font-weight: 600;
  font-size: 15px;
}

.comparison-table tbody tr:nth-child(even) {
  background-color: var(--light-gray);
}

.comparison-table tbody tr:hover {
  background-color: #eef9fd;
}

/* Contact Form */
.contact-form {
  max-width: 600px;
  margin: 0 auto;
  background-color: var(--light-gray);
  padding: 40px;
  border-radius: var(--border-radius);
}

.form-group {
  margin-bottom: 24px;
}

.form-group label {
  display: block;
  margin-bottom: 8px;
  font-weight: 600;
  color: var(--dark-gray);
  font-size: 15px;
}

.form-group input,
.form-group textarea,
.form-group select {
  width: 100%;
  padding: 14px;
  border: 1px solid #d2d2d7;
  border-radius: 8px;
  font-size: 17px;
  background-color: var(--white);
  transition: var(--transition);
}

.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
  border-color: var(--primary-blue);
  outline: none;
  box-shadow: 0 0 0 4px rgba(0, 168, 232, 0.1);
}

.form-group textarea {
  min-height: 150px;
  resize: vertical;
}

.checkbox-group {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.checkbox-group label {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 400;
  cursor: pointer;
}

.checkbox-group input[type="checkbox"] {
  width: auto;
  margin: 0;
}

/* Footer */
footer {
  background-color: var(--dark-gray);
  color: var(--white);
  padding: 60px 20px 30px;
}

.footer-content {
  max-width: 1200px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 40px;
  margin-bottom: 40px;
}

.footer-section h4 {
  color: var(--white);
  margin-bottom: 20px;
  font-size: 18px;
}

.footer-section p,
.footer-section a {
  color: var(--medium-gray);
  font-size: 15px;
  line-height: 1.8;
  transition: var(--transition);
}

.footer-section a:hover {
  color: var(--primary-blue);
}

.footer-links {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.footer-bottom {
  max-width: 1200px;
  margin: 0 auto;
  padding-top: 30px;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  text-align: center;
  color: var(--medium-gray);
  font-size: 14px;
}

/* Responsive Design */

/* Tablet (768px - 1024px) */
@media (max-width: 1024px) {
  h1 {
    font-size: 44px;
  }

  h2 {
    font-size: 32px;
  }

  .section {
    padding: 60px 0;
  }

  .hero {
    padding: 80px 20px 60px;
  }
}

/* Mobile (up to 768px) */
@media (max-width: 768px) {
  h1 {
    font-size: 36px;
  }

  h2 {
    font-size: 28px;
  }

  h3 {
    font-size: 24px;
  }

  .subheading {
    font-size: 18px;
  }

  body {
    font-size: 16px;
  }

  .section {
    padding: 50px 0;
  }

  /* Mobile Navigation */
  .nav-links {
    position: fixed;
    top: 73px;
    left: -100%;
    width: 100%;
    height: calc(100vh - 73px);
    background-color: rgba(255, 255, 255, 0.98);
    backdrop-filter: blur(20px);
    flex-direction: column;
    justify-content: flex-start;
    padding: 40px 20px;
    gap: 20px;
    transition: var(--transition);
    z-index: 999;
  }

  .nav-links.active {
    left: 0;
  }

  .menu-toggle {
    display: block;
  }

  .menu-toggle.active span:nth-child(1) {
    transform: rotate(45deg) translate(5px, 5px);
  }

  .menu-toggle.active span:nth-child(2) {
    opacity: 0;
  }

  .menu-toggle.active span:nth-child(3) {
    transform: rotate(-45deg) translate(7px, -7px);
  }

  .nav-links a {
    font-size: 20px;
    padding: 12px 0;
    width: 100%;
    text-align: center;
  }

  /* Hero Section */
  .hero {
    padding: 60px 20px 40px;
  }

  .hero-logo {
    max-width: 150px;
  }

  .cta-buttons {
    flex-direction: column;
    align-items: stretch;
  }

  .btn {
    width: 100%;
  }

  /* Features Grid */
  .features-grid {
    grid-template-columns: 1fr;
    gap: 30px;
  }

  /* Pricing Grid */
  .pricing-grid {
    grid-template-columns: 1fr;
  }

  /* Steps */
  .steps {
    grid-template-columns: 1fr;
  }

  /* Footer */
  .footer-content {
    grid-template-columns: 1fr;
    gap: 30px;
  }

  /* Comparison Table - Make scrollable */
  .table-wrapper {
    overflow-x: auto;
  }

  .comparison-table {
    min-width: 600px;
  }
}

/* Small Mobile (up to 375px) */
@media (max-width: 375px) {
  h1 {
    font-size: 32px;
  }

  h2 {
    font-size: 24px;
  }

  .hero-logo {
    max-width: 120px;
  }

  .btn {
    padding: 12px 24px;
    font-size: 16px;
  }

  .pricing-card {
    padding: 30px 20px;
  }

  .price {
    font-size: 40px;
  }
}

/* Print Styles */
@media print {
  header, footer, .cta-buttons {
    display: none;
  }

  .section {
    padding: 20px 0;
  }
}

/* Accessibility */
.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border-width: 0;
}

/* Focus styles for keyboard navigation */
a:focus,
button:focus,
input:focus,
textarea:focus,
select:focus {
  outline: 2px solid var(--primary-blue);
  outline-offset: 2px;
}

/* Smooth scroll */
html {
  scroll-behavior: smooth;
}