/* ========================================
   Modern Professional Styles
   Jeremy Hildreth Personal Site
   ======================================== */

/* CSS Variables */
:root {
  --color-text: #1a1a1a;
  --color-text-light: #4a4a4a;
  --color-bg: #ffffff;
  --color-bg-alt: #f8f9fa;
  --color-accent: #2563eb;
  --color-border: #e5e5e7;
  
  --font-base: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  --font-size-base: 18px;
  --line-height-base: 1.7;
  
  --spacing-xs: 0.5rem;
  --spacing-sm: 1rem;
  --spacing-md: 2rem;
  --spacing-lg: 4rem;
  --spacing-xl: 6rem;
  
  --container-width: 760px;
  --container-width-narrow: 640px;
}

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

html {
  scroll-behavior: smooth;
  font-size: var(--font-size-base);
}

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

/* Typography */
h1, h2, h3, h4, h5, h6 {
  font-weight: 600;
  line-height: 1.3;
  letter-spacing: -0.02em;
  color: var(--color-text);
  margin-bottom: var(--spacing-sm);
}

h1 {
  font-size: 3rem;
  font-weight: 700;
  letter-spacing: -0.03em;
}

h2 {
  font-size: 2.25rem;
  margin-bottom: var(--spacing-md);
}

h3 {
  font-size: 1.5rem;
  margin-top: var(--spacing-md);
  margin-bottom: var(--spacing-sm);
}

p {
  margin-bottom: var(--spacing-sm);
  color: var(--color-text-light);
  font-size: 1.05rem;
}

.lead {
  font-size: 1.25rem;
  line-height: 1.6;
  color: var(--color-text);
}

strong {
  font-weight: 600;
  color: var(--color-text);
}

/* Links */
a {
  color: var(--color-accent);
  text-decoration: none;
  transition: all 0.2s ease;
}

a:hover {
  color: #1d4ed8;
}

/* Layout */
.container {
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 0 2rem;
}

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

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

/* Header */
.site-header {
  position: sticky;
  top: 0;
  background-color: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--color-border);
  z-index: 1000;
  padding: 1rem 0;
}

.nav-container {
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 0 2rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.logo a {
  font-size: 1.125rem;
  font-weight: 600;
  color: var(--color-text);
  text-decoration: none;
  letter-spacing: -0.01em;
}

.nav-menu {
  display: flex;
  list-style: none;
  gap: 0.5rem;
}

.nav-menu li a {
  padding: 0.5rem 1rem;
  color: var(--color-text-light);
  font-size: 0.9375rem;
  font-weight: 500;
  border-radius: 6px;
  transition: all 0.2s ease;
}

.nav-menu li a:hover {
  background-color: var(--color-bg-alt);
  color: var(--color-text);
}

/* Hero Section */
.hero {
  padding: 8rem 0 6rem;
  text-align: center;
}

.hero h1 {
  margin-bottom: var(--spacing-md);
  max-width: 900px;
  margin-left: auto;
  margin-right: auto;
}

.hero .lead {
  max-width: 680px;
  margin-left: auto;
  margin-right: auto;
  margin-bottom: var(--spacing-sm);
}

.cta-button {
  display: inline-block;
  margin-top: var(--spacing-md);
  padding: 0.875rem 2rem;
  background-color: var(--color-text);
  color: white;
  font-weight: 600;
  border-radius: 8px;
  transition: all 0.3s ease;
  font-size: 1rem;
}

.cta-button:hover {
  background-color: var(--color-text-light);
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
}

/* Content Sections */
.intro {
  font-size: 1.15rem;
  color: var(--color-text);
  margin-bottom: var(--spacing-md);
}

blockquote {
  margin: var(--spacing-md) 0;
  padding: var(--spacing-md);
  border-left: 4px solid var(--color-text);
  background-color: var(--color-bg-alt);
  font-size: 1.25rem;
  font-style: italic;
  color: var(--color-text);
  line-height: 1.6;
}

.section-alt blockquote {
  background-color: white;
}

/* Services Grid */
.services-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--spacing-lg);
  margin-top: var(--spacing-lg);
}

.service-category {
  padding: var(--spacing-md);
  background-color: var(--color-bg-alt);
  border-radius: 8px;
  border: 1px solid var(--color-border);
}

.section-alt .service-category {
  background-color: white;
}

.service-category h3 {
  margin-top: 0;
  margin-bottom: var(--spacing-md);
  color: var(--color-text);
  font-size: 1.4rem;
}

.service-category ul {
  list-style: none;
}

.service-category li {
  margin-bottom: var(--spacing-sm);
  padding-left: 1.5rem;
  position: relative;
  color: var(--color-text-light);
  line-height: 1.6;
}

.service-category li::before {
  content: "→";
  position: absolute;
  left: 0;
  color: var(--color-accent);
  font-weight: 600;
}

.service-category li strong {
  color: var(--color-text);
  font-weight: 600;
}

/* Contact Section */
.contact-container {
  text-align: center;
  max-width: var(--container-width-narrow);
}

.email-large {
  font-size: 1.5rem;
  margin: var(--spacing-md) 0;
}

.email-large a {
  font-weight: 600;
  color: var(--color-text);
  border-bottom: 2px solid var(--color-accent);
  padding-bottom: 2px;
}

.email-large a:hover {
  color: var(--color-accent);
  border-bottom-color: var(--color-text);
}

.note {
  margin-top: var(--spacing-md);
  font-size: 0.9375rem;
  color: var(--color-text-light);
}

/* Footer */
.site-footer {
  padding: var(--spacing-lg) 0;
  text-align: center;
  border-top: 1px solid var(--color-border);
  color: var(--color-text-light);
  font-size: 0.9375rem;
}

/* Responsive Design */
@media (max-width: 768px) {
  :root {
    --font-size-base: 17px;
    --spacing-lg: 3rem;
    --spacing-xl: 4rem;
  }
  
  h1 {
    font-size: 2.25rem;
  }
  
  h2 {
    font-size: 1.875rem;
  }
  
  h3 {
    font-size: 1.375rem;
  }
  
  .container {
    padding: 0 1.5rem;
  }
  
  .nav-container {
    padding: 0 1.5rem;
  }
  
  .nav-menu {
    gap: 0.25rem;
  }
  
  .nav-menu li a {
    padding: 0.5rem 0.75rem;
    font-size: 0.875rem;
  }
  
  .hero {
    padding: 5rem 0 4rem;
  }
  
  .lead {
    font-size: 1.125rem;
  }
  
  blockquote {
    font-size: 1.125rem;
    padding: var(--spacing-sm) var(--spacing-sm);
  }
  
  .email-large {
    font-size: 1.25rem;
  }
  
  .services-grid {
    gap: var(--spacing-md);
  }
}

@media (max-width: 480px) {
  h1 {
    font-size: 1.875rem;
  }
  
  .logo a {
    font-size: 1rem;
  }
  
  .nav-menu {
    flex-wrap: wrap;
    justify-content: center;
  }
  
  .nav-menu li a {
    font-size: 0.8125rem;
    padding: 0.4rem 0.6rem;
  }
}

/* Selection */
::selection {
  background-color: var(--color-text);
  color: white;
}

::-moz-selection {
  background-color: var(--color-text);
  color: white;
}

/* Focus states for accessibility */
a:focus-visible,
button:focus-visible {
  outline: 2px solid var(--color-accent);
  outline-offset: 2px;
  border-radius: 2px;
}

/* Smooth animations */
@media (prefers-reduced-motion: reduce) {
  * {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}