/**
 * The Wizard of AWS - Design System
 * Deep Tech Dark Mode with Neon AWS Orange Accents
 */

/* ============================================
   CSS Custom Properties (Design Tokens)
   ============================================ */
:root {
  /* Deep Tech Dark Mode Colors */
  --color-bg-primary: #0f172a;      /* Deep slate background */
  --color-text-primary: #f8fafc;    /* Light slate text */
  --color-text-secondary: #cbd5e1;   /* Muted text */
  --color-text-muted: #94a3b8;       /* Subtle text */
  
  /* Neon AWS Orange Accent */
  --color-accent-primary: #ff9900;   /* AWS Orange */
  --color-accent-hover: #ffaa22;     /* Lighter orange on hover */
  --color-accent-active: #e68900;    /* Darker orange on active */
  
  /* Semantic Colors */
  --color-border: #1e293b;           /* Subtle borders */
  --color-surface: #1e293b;          /* Elevated surfaces */
  --color-surface-hover: #334155;    /* Hover states */
  
  /* Typography */
  --font-heading: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', 
                  'Roboto', 'Oxygen', 'Ubuntu', 'Cantarell', 'Fira Sans', 
                  'Droid Sans', 'Helvetica Neue', sans-serif;
  --font-body: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Roboto', 
               'Oxygen', 'Ubuntu', 'Cantarell', 'Fira Sans', 'Droid Sans', 
               'Helvetica Neue', sans-serif;
  
  /* Font Weights */
  --weight-bold: 700;
  --weight-semibold: 600;
  --weight-medium: 500;
  --weight-normal: 400;
  
  /* Spacing Scale */
  --spacing-xs: 0.25rem;   /* 4px */
  --spacing-sm: 0.5rem;    /* 8px */
  --spacing-md: 1rem;      /* 16px */
  --spacing-lg: 1.5rem;    /* 24px */
  --spacing-xl: 2rem;      /* 32px */
  --spacing-2xl: 3rem;     /* 48px */
  --spacing-3xl: 4rem;     /* 64px */
  
  /* Border Radius */
  --radius-sm: 0.25rem;
  --radius-md: 0.5rem;
  --radius-lg: 0.75rem;
  --radius-xl: 1rem;
  
  /* Shadows */
  --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.3);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.4);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.5);
  --shadow-glow: 0 0 20px rgba(255, 153, 0, 0.3);
}

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

html {
  font-size: 16px;
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-body);
  font-weight: var(--weight-normal);
  line-height: 1.6;
  color: var(--color-text-primary);
  background-color: var(--color-bg-primary);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* ============================================
   Typography
   ============================================ */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-heading);
  font-weight: var(--weight-bold);
  line-height: 1.2;
  margin-bottom: var(--spacing-md);
  color: var(--color-text-primary);
  letter-spacing: -0.02em;
}

h1 {
  font-size: clamp(2.5rem, 5vw, 4rem);
  font-weight: 800;
  letter-spacing: -0.03em;
}

h2 {
  font-size: clamp(2rem, 4vw, 3rem);
  font-weight: 700;
}

h3 {
  font-size: clamp(1.5rem, 3vw, 2rem);
  font-weight: 700;
}

h4 {
  font-size: clamp(1.25rem, 2.5vw, 1.5rem);
  font-weight: 600;
}

h5 {
  font-size: 1.125rem;
  font-weight: 600;
}

h6 {
  font-size: 1rem;
  font-weight: 600;
}

p {
  margin-bottom: var(--spacing-md);
  color: var(--color-text-secondary);
}

a {
  color: var(--color-accent-primary);
  text-decoration: none;
  transition: color 0.2s ease, opacity 0.2s ease;
}

a:hover {
  color: var(--color-accent-hover);
  opacity: 0.9;
}

a:active {
  color: var(--color-accent-active);
}

/* ============================================
   Buttons
   ============================================ */
.btn {
  display: inline-block;
  padding: var(--spacing-sm) var(--spacing-lg);
  font-family: var(--font-heading);
  font-weight: var(--weight-semibold);
  font-size: 1rem;
  color: var(--color-bg-primary);
  background-color: var(--color-accent-primary);
  border: 2px solid var(--color-accent-primary);
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: all 0.2s ease;
  text-align: center;
  letter-spacing: 0.01em;
}

.btn:hover {
  background-color: var(--color-accent-hover);
  border-color: var(--color-accent-hover);
  box-shadow: var(--shadow-glow);
  transform: translateY(-1px);
}

.btn:active {
  background-color: var(--color-accent-active);
  border-color: var(--color-accent-active);
  transform: translateY(0);
}

.btn-outline {
  color: var(--color-accent-primary);
  background-color: transparent;
  border-color: var(--color-accent-primary);
}

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

/* ============================================
   Utility Classes
   ============================================ */
.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--spacing-lg);
}

.text-accent {
  color: var(--color-accent-primary);
}

.text-muted {
  color: var(--color-text-muted) !important;
}

.bg-surface {
  background-color: var(--color-surface);
  border-radius: var(--radius-lg);
  padding: var(--spacing-lg);
}

.shadow-glow {
  box-shadow: var(--shadow-glow);
}

/* ============================================
   Tailwind CSS Integration
   ============================================ */
/* Custom Tailwind utilities that complement the design system */
@layer utilities {
  .bg-deep-tech {
    background-color: var(--color-bg-primary);
  }
  
  .text-deep-tech {
    color: var(--color-text-primary);
  }
  
  .accent-aws-orange {
    color: var(--color-accent-primary);
  }
  
  .bg-aws-orange {
    background-color: var(--color-accent-primary);
  }
  
  .border-aws-orange {
    border-color: var(--color-accent-primary);
  }
}

/* ============================================
   Component Styles
   ============================================ */
.nav-link {
  color: var(--color-text-primary);
  transition: color 0.2s ease;
}

.nav-link:hover {
  color: var(--color-accent-primary);
}

.footer-link {
  color: var(--color-text-secondary);
  transition: color 0.2s ease;
}

.footer-link:hover {
  color: var(--color-accent-primary);
}

.brand-link {
  color: var(--color-accent-primary);
  font-family: var(--font-heading);
  transition: color 0.2s ease;
}

.brand-link:hover {
  color: var(--color-accent-hover);
}

/* ============================================
   Hero Section Styles
   ============================================ */
.hero-section {
  min-height: 60vh;
  display: flex;
  align-items: center;
  justify-content: center;
}

.hero-section h1 {
  text-shadow: 0 2px 20px rgba(255, 153, 0, 0.1);
}

.hero-section .btn {
  position: relative;
  overflow: hidden;
}

.hero-section .btn::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.1), transparent);
  transition: left 0.5s;
}

.hero-section .btn:hover::before {
  left: 100%;
}

/* ============================================
   Article Card Styles
   ============================================ */
.article-card {
  padding: var(--spacing-lg);
  border-radius: var(--radius-lg);
  border: 1px solid var(--color-border);
  background-color: transparent;
  transition: all 0.3s ease;
}

.article-card:hover {
  background-color: var(--color-surface);
  border-color: var(--color-accent-primary);
  box-shadow: var(--shadow-md);
  transform: translateY(-2px);
}

.article-card a {
  text-decoration: none;
}

.article-card h3 {
  transition: color 0.2s ease;
}

/* ============================================
   Expertise Pillars Styles
   ============================================ */
.expertise-grid {
  margin-bottom: var(--spacing-3xl);
}

.expertise-pillar {
  padding: var(--spacing-xl);
  border-radius: var(--radius-lg);
  border: 1px solid var(--color-border);
  background-color: transparent;
  transition: all 0.3s ease;
  height: 100%;
  display: flex;
  flex-direction: column;
}

.expertise-pillar:hover {
  background-color: var(--color-surface);
  border-color: var(--color-accent-primary);
  box-shadow: var(--shadow-lg);
  transform: translateY(-4px);
}

.pillar-icon {
  display: flex;
  align-items: center;
  justify-content: flex-start;
}

.pillar-icon i {
  stroke-width: 2;
}

.pillar-value {
  margin-top: auto;
  padding-top: var(--spacing-md);
  border-top: 1px solid var(--color-border);
}

.pillar-scale {
  padding-top: var(--spacing-sm);
}

/* ============================================
   Project Card Styles
   ============================================ */
.projects-grid {
  margin-bottom: var(--spacing-3xl);
}

.project-card {
  padding: var(--spacing-xl);
  border-radius: var(--radius-lg);
  border: 1px solid var(--color-border);
  background-color: transparent;
  transition: all 0.3s ease;
  height: 100%;
  display: flex;
  flex-direction: column;
}

.project-card:hover {
  background-color: var(--color-surface);
  border-color: var(--color-accent-primary);
  box-shadow: var(--shadow-lg);
  transform: translateY(-4px);
}

.project-header {
  flex-grow: 1;
}

.project-tech-tags {
  display: flex;
  flex-wrap: wrap;
  gap: var(--spacing-sm);
}

.tech-tag {
  display: inline-block;
  padding: var(--spacing-xs) var(--spacing-md);
  font-size: 0.875rem;
  font-weight: var(--weight-medium);
  border-radius: var(--radius-md);
  background-color: var(--color-surface);
  color: var(--color-text-secondary);
  border: 1px solid var(--color-border);
  transition: all 0.2s ease;
}

.tech-tag:hover {
  background-color: var(--color-surface-hover);
  border-color: var(--color-accent-primary);
  color: var(--color-accent-primary);
}

.project-footer {
  margin-top: auto;
  padding-top: var(--spacing-md);
}

.btn-github {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: var(--spacing-sm) var(--spacing-lg);
  font-family: var(--font-heading);
  font-weight: var(--weight-semibold);
  font-size: 0.9375rem;
  color: var(--color-bg-primary);
  background-color: var(--color-accent-primary);
  border: 2px solid var(--color-accent-primary);
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: all 0.2s ease;
  text-decoration: none;
  width: 100%;
  text-align: center;
}

.btn-github:hover {
  background-color: var(--color-accent-hover);
  border-color: var(--color-accent-hover);
  box-shadow: var(--shadow-glow);
  transform: translateY(-1px);
}

.btn-github:active {
  background-color: var(--color-accent-active);
  border-color: var(--color-accent-active);
  transform: translateY(0);
}

/* ============================================
   Social Media Hub Styles
   ============================================ */
.newsletter-section {
  margin-bottom: var(--spacing-3xl);
}

.btn-newsletter {
  display: inline-block;
  padding: var(--spacing-md) var(--spacing-xl);
  font-family: var(--font-heading);
  font-weight: var(--weight-semibold);
  font-size: 1.125rem;
  color: var(--color-bg-primary);
  background-color: var(--color-accent-primary);
  border: 2px solid var(--color-accent-primary);
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: all 0.2s ease;
  text-decoration: none;
  text-align: center;
}

.btn-newsletter:hover {
  background-color: var(--color-accent-hover);
  border-color: var(--color-accent-hover);
  box-shadow: var(--shadow-glow);
  transform: translateY(-2px);
}

.btn-newsletter:active {
  background-color: var(--color-accent-active);
  border-color: var(--color-accent-active);
  transform: translateY(0);
}

.socials-grid {
  margin-bottom: var(--spacing-3xl);
}

.social-button {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: var(--spacing-xl) var(--spacing-lg);
  min-height: 180px;
  border-radius: var(--radius-lg);
  border: 2px solid var(--color-border);
  background-color: transparent;
  transition: all 0.3s ease;
  text-decoration: none;
  cursor: pointer;
}

.social-button:hover {
  background-color: var(--color-surface);
  border-color: var(--color-accent-primary);
  box-shadow: var(--shadow-lg);
  transform: translateY(-4px);
}

.social-icon {
  color: var(--color-accent-primary);
  margin-bottom: var(--spacing-md);
  transition: transform 0.3s ease;
}

.social-button:hover .social-icon {
  transform: scale(1.1);
}

.social-label {
  font-family: var(--font-heading);
  font-size: 1.25rem;
  font-weight: var(--weight-semibold);
  color: var(--color-text-primary);
  margin-bottom: var(--spacing-xs);
  text-align: center;
}

.social-description {
  font-size: 0.875rem;
  color: var(--color-text-muted);
  text-align: center;
  line-height: 1.4;
}

/* ============================================
   Email Link Styles
   ============================================ */
.email-link {
  color: var(--color-text-secondary);
  transition: color 0.2s ease;
  text-decoration: none;
}

.email-link:hover {
  color: var(--color-accent-primary);
}

.email-link svg {
  transition: transform 0.2s ease;
}

.email-link:hover svg {
  transform: scale(1.1);
}

/* ============================================
   Footer Social Icon Styles
   ============================================ */
.footer-social-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 2.5rem;
  height: 2.5rem;
  color: var(--color-text-muted);
  transition: all 0.2s ease;
  border-radius: var(--radius-md);
}

.footer-social-icon:hover {
  color: var(--color-accent-primary);
  background-color: var(--color-surface);
  transform: translateY(-2px);
}

.footer-social-icon svg {
  width: 1.25rem;
  height: 1.25rem;
}

/* ============================================
   Writing Page / Markdown Content Styles
   ============================================ */
.writing-page {
  max-width: 800px;
  margin: 0 auto;
}

.writing-page .prose {
  line-height: 1.75;
}

.writing-page .prose h2 {
  font-size: 1.875rem;
  font-weight: 700;
  margin-top: 2rem;
  margin-bottom: 1rem;
  color: var(--color-text-primary);
  font-family: var(--font-heading);
}

.writing-page .prose h3 {
  font-size: 1.5rem;
  font-weight: 600;
  margin-top: 1.5rem;
  margin-bottom: 0.75rem;
  color: var(--color-text-primary);
  font-family: var(--font-heading);
}

.writing-page .prose p {
  margin-bottom: 1.25rem;
  color: var(--color-text-secondary);
}

.writing-page .prose ul,
.writing-page .prose ol {
  margin-bottom: 1.25rem;
  padding-left: 1.5rem;
  color: var(--color-text-secondary);
}

.writing-page .prose li {
  margin-bottom: 0.5rem;
}

.writing-page .prose code {
  background-color: var(--color-surface);
  padding: 0.125rem 0.375rem;
  border-radius: var(--radius-sm);
  font-size: 0.875em;
  color: var(--color-accent-primary);
  border: 1px solid var(--color-border);
}

.writing-page .prose pre {
  background-color: var(--color-surface);
  padding: var(--spacing-lg);
  border-radius: var(--radius-md);
  overflow-x: auto;
  margin-bottom: 1.25rem;
  border: 1px solid var(--color-border);
}

.writing-page .prose pre code {
  background-color: transparent;
  padding: 0;
  border: none;
  color: var(--color-text-secondary);
}

.writing-page .prose a {
  color: var(--color-accent-primary);
  text-decoration: underline;
  transition: color 0.2s ease;
}

.writing-page .prose a:hover {
  color: var(--color-accent-hover);
}

.writing-page .prose blockquote {
  border-left: 4px solid var(--color-accent-primary);
  padding-left: var(--spacing-lg);
  margin: 1.25rem 0;
  font-style: italic;
  color: var(--color-text-muted);
}