/* CSS Custom Properties */
:root {
  --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto,
               Oxygen-Sans, Ubuntu, Cantarell, "Helvetica Neue", sans-serif;
  --color-primary: #2563eb;
  --color-primary-dark: #1d4ed8;
  --color-bg: #ffffff;
  --color-bg-alt: #f8fafc;
  --color-text: #1f2937;
  --color-text-light: #6b7280;
  --max-width: 1200px;
  --spacing-sm: 1rem;
  --spacing-md: 2rem;
  --spacing-lg: 4rem;
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.6;
  color: var(--color-text);
  background-color: var(--color-bg);
}

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

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

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

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

/* Header & Navigation */
header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(8px);
  z-index: 100;
  padding: 0.75rem 0;
  border-bottom: 1px solid #e5e7eb;
}

.logo {
  font-weight: 700;
  font-size: 1.25rem;
  color: var(--color-text);
}

/* Buttons */
.btn {
  display: inline-block;
  padding: 0.875rem 1.75rem;
  font-size: 1rem;
  font-weight: 600;
  text-align: center;
  border-radius: 0.5rem;
  border: none;
  cursor: pointer;
  transition: background-color 0.2s, transform 0.1s;
  min-height: 48px;
}

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

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

.btn-primary:active {
  transform: scale(0.98);
}

.btn:focus {
  outline: 3px solid var(--color-primary);
  outline-offset: 2px;
}

/* Hero Section */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: calc(60px + var(--spacing-md)) var(--spacing-sm) var(--spacing-md);
  background: linear-gradient(135deg, #f0f9ff 0%, #e0f2fe 100%);
}

.hero h1 {
  font-size: 2rem;
  font-weight: 800;
  line-height: 1.2;
  margin-bottom: 1rem;
  color: var(--color-text);
}

.hero-subtitle {
  font-size: 1.125rem;
  color: var(--color-text-light);
  margin-bottom: var(--spacing-md);
  max-width: 600px;
  margin-left: auto;
  margin-right: auto;
}

/* About Section */
.about {
  padding: var(--spacing-lg) 0;
  background-color: var(--color-bg);
}

.about h2 {
  font-size: 1.5rem;
  text-align: center;
  margin-bottom: var(--spacing-md);
}

.about-content {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--spacing-md);
}

.trainer-photo {
  width: 200px;
  height: 200px;
  border-radius: 50%;
  overflow: hidden;
  background-color: var(--color-bg-alt);
  flex-shrink: 0;
}

.trainer-photo img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.credentials {
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  justify-content: center;
  margin-bottom: 1rem;
}

.credentials li {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.9375rem;
}

.credential-badge {
  background-color: var(--color-primary);
  color: #ffffff;
  padding: 0.25rem 0.5rem;
  border-radius: 0.25rem;
  font-size: 0.75rem;
  font-weight: 600;
}

.philosophy {
  color: var(--color-text-light);
  text-align: center;
  max-width: 600px;
}

/* Pricing Section */
.pricing {
  padding: var(--spacing-lg) 0;
  background-color: var(--color-bg-alt);
}

.pricing h2 {
  font-size: 1.5rem;
  text-align: center;
  margin-bottom: var(--spacing-md);
}

.pricing-card {
  background: var(--color-bg);
  border-radius: 1rem;
  padding: var(--spacing-md);
  max-width: 500px;
  margin: 0 auto;
  box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
  text-align: center;
}

.price-options {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 1rem;
  margin-bottom: var(--spacing-md);
}

.price-option {
  display: flex;
  flex-direction: column;
  align-items: center;
}

.price-option.featured {
  padding: 1rem;
  background: linear-gradient(135deg, #dbeafe 0%, #bfdbfe 100%);
  border-radius: 0.5rem;
}

.price-label {
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--color-primary);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.price-amount {
  font-size: 2.5rem;
  font-weight: 800;
  color: var(--color-text);
  line-height: 1;
}

.price-term {
  font-size: 0.875rem;
  color: var(--color-text-light);
}

.price-divider {
  font-weight: 600;
  color: var(--color-text-light);
}

.includes-list {
  list-style: none;
  text-align: left;
  margin-bottom: var(--spacing-md);
}

.includes-list li {
  padding: 0.5rem 0;
  padding-left: 1.5rem;
  position: relative;
}

.includes-list li::before {
  content: "\2713";
  position: absolute;
  left: 0;
  color: var(--color-primary);
  font-weight: 700;
}

/* Lead Form Section */
.lead-form {
  padding: var(--spacing-lg) 0;
  background-color: var(--color-bg);
}

.lead-form h2 {
  font-size: 1.5rem;
  text-align: center;
  margin-bottom: 0.5rem;
}

.lead-form > .container > p {
  text-align: center;
  color: var(--color-text-light);
  margin-bottom: var(--spacing-md);
}

.form-placeholder {
  min-height: 600px;
  background-color: var(--color-bg-alt);
  border-radius: 0.5rem;
  display: flex;
  align-items: center;
  justify-content: center;
}

.placeholder-text {
  color: var(--color-text-light);
}

/* Footer */
footer {
  padding: var(--spacing-md) 0;
  background-color: var(--color-text);
  color: #ffffff;
  text-align: center;
}

footer p {
  font-size: 0.875rem;
  margin-bottom: 0.5rem;
}

footer .privacy {
  font-size: 0.75rem;
  color: #9ca3af;
  margin-bottom: 0;
}

/* Focus States for Accessibility */
a:focus, button:focus {
  outline: 3px solid var(--color-primary);
  outline-offset: 2px;
}

/* Tablet: 768px+ */
@media (min-width: 768px) {
  .container {
    padding: 0 var(--spacing-md);
  }

  .hero h1 {
    font-size: 2.75rem;
  }

  .hero-subtitle {
    font-size: 1.25rem;
  }

  .about h2,
  .pricing h2,
  .lead-form h2 {
    font-size: 2rem;
  }

  .about-content {
    flex-direction: row;
    align-items: flex-start;
    text-align: left;
  }

  .trainer-photo {
    width: 250px;
    height: 250px;
  }

  .credentials {
    justify-content: flex-start;
  }

  .philosophy {
    text-align: left;
  }

  .price-options {
    flex-direction: row;
    justify-content: center;
    gap: 2rem;
  }
}

/* Desktop: 1024px+ */
@media (min-width: 1024px) {
  .hero h1 {
    font-size: 3.5rem;
  }

  .hero-subtitle {
    font-size: 1.375rem;
  }

  .trainer-photo {
    width: 300px;
    height: 300px;
  }

  .pricing-card {
    padding: var(--spacing-md) var(--spacing-lg);
  }

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