/* ========================================
   MITCH QUIST PORTFOLIO - GLOBAL STYLES
   High-end, dark, cinematic, modern
   ======================================== */

/* ========== CSS CUSTOM PROPERTIES ========== */
:root {
  /* Color Palette - Dark, Cinematic Theme */
  --bg-main: #0a0a0f;
  --bg-elevated: #13131a;
  --bg-card: rgba(25, 25, 35, 0.6);
  --bg-card-hover: rgba(30, 30, 42, 0.8);
  
  /* Accent Colors - Soft, Desaturated */
  --accent: #5a9fa8;
  --accent-secondary: #7b68a6;
  --accent-muted: #4a7f87;
  
  /* Text Colors */
  --text-main: #e8e8f0;
  --text-muted: #a8a8b8;
  --text-dim: #6e6e7e;
  
  /* Borders & Dividers */
  --border-subtle: rgba(255, 255, 255, 0.08);
  --border-accent: rgba(90, 159, 168, 0.3);
  
  /* Glassmorphism */
  --glass-bg: rgba(25, 25, 35, 0.4);
  --glass-border: rgba(255, 255, 255, 0.1);
  --glass-shadow: 0 8px 32px rgba(0, 0, 0, 0.4);
  
  /* Spacing */
  --spacing-xs: 0.5rem;
  --spacing-sm: 1rem;
  --spacing-md: 2rem;
  --spacing-lg: 4rem;
  --spacing-xl: 6rem;
  
  /* Typography */
  --font-primary: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
  --font-mono: "SF Mono", "Consolas", "Monaco", monospace;
  
  /* Transitions */
  --transition-fast: 0.15s ease;
  --transition-normal: 0.3s ease;
  --transition-slow: 0.5s ease;
  
  /* Shadows */
  --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.3);
  --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.4);
  --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.5);
  --shadow-xl: 0 16px 48px rgba(0, 0, 0, 0.6);
}

/* ========== RESET & BASE ========== */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

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

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }
  
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}

body {
  font-family: var(--font-primary);
  background: var(--bg-main);
  color: var(--text-main);
  line-height: 1.6;
  overflow-x: hidden;
  min-height: 100vh;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* Subtle background gradient */
body::before {
  content: '';
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: radial-gradient(ellipse at top, rgba(90, 159, 168, 0.08) 0%, transparent 60%),
              radial-gradient(ellipse at bottom right, rgba(123, 104, 166, 0.06) 0%, transparent 50%);
  pointer-events: none;
  z-index: -1;
}

/* ========== TYPOGRAPHY ========== */
h1, h2, h3, h4, h5, h6 {
  font-weight: 600;
  line-height: 1.2;
  letter-spacing: -0.02em;
  color: var(--text-main);
}

h1 {
  font-size: clamp(2.5rem, 5vw, 4rem);
  font-weight: 700;
  margin-bottom: var(--spacing-md);
}

h2 {
  font-size: clamp(2rem, 4vw, 3rem);
  margin-bottom: var(--spacing-md);
}

h3 {
  font-size: clamp(1.5rem, 3vw, 2rem);
  margin-bottom: var(--spacing-sm);
}

h4 {
  font-size: clamp(1.25rem, 2vw, 1.5rem);
  margin-bottom: var(--spacing-sm);
}

p {
  margin-bottom: var(--spacing-sm);
  color: var(--text-muted);
  line-height: 1.7;
}

a {
  color: var(--accent);
  text-decoration: none;
  transition: color var(--transition-fast);
}

a:hover {
  color: var(--text-main);
}

/* ========== HEADER & NAVIGATION ========== */
.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  padding: 1.25rem 0;
  transition: all var(--transition-normal);
}

.header.scrolled {
  background: var(--glass-bg);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--glass-border);
  box-shadow: var(--shadow-sm);
}

.header-container {
  max-width: 1400px;
  margin: 0 auto;
  padding: 0 var(--spacing-md);
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.logo {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--text-main);
  letter-spacing: -0.03em;
}

.logo-mark {
  width: 32px;
  height: 32px;
  background: linear-gradient(135deg, var(--accent) 0%, var(--accent-secondary) 100%);
  border-radius: 6px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.9rem;
  font-weight: 700;
  color: white;
}

.nav-desktop {
  display: flex;
  gap: 2rem;
  align-items: center;
}

.nav-link {
  position: relative;
  color: var(--text-muted);
  font-weight: 500;
  font-size: 0.95rem;
  padding: 0.5rem 0;
  transition: color var(--transition-fast);
}

.nav-link::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--accent);
  transition: width var(--transition-normal);
}

.nav-link:hover,
.nav-link.active {
  color: var(--text-main);
}

.nav-link.active::after,
.nav-link:hover::after {
  width: 100%;
}

/* Mobile Menu */
.hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 0.5rem;
  z-index: 1001;
}

.hamburger span {
  width: 24px;
  height: 2px;
  background: var(--text-main);
  transition: all var(--transition-normal);
  display: block;
}

.hamburger.active span:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}

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

.hamburger.active span:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

.nav-mobile {
  display: none;
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100vh;
  background: var(--bg-elevated);
  padding: 6rem var(--spacing-md) var(--spacing-md);
  flex-direction: column;
  gap: 2rem;
  z-index: 999;
  opacity: 0;
  transform: translateY(-20px);
  pointer-events: none;
  transition: opacity var(--transition-normal), transform var(--transition-normal);
}

.nav-mobile.active {
  opacity: 1;
  transform: translateY(0);
  pointer-events: all;
}

.nav-mobile .nav-link {
  font-size: 1.5rem;
  padding: 1rem 0;
}

@media (max-width: 768px) {
  .nav-desktop {
    display: none;
  }
  
  .hamburger {
    display: flex;
  }
  
  .nav-mobile {
    display: flex;
  }
}

/* ========== LAYOUT CONTAINERS ========== */
.container {
  max-width: 1400px;
  margin: 0 auto;
  padding: 0 var(--spacing-md);
}

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

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

main {
  padding-top: 80px;
}

/* ========== BUTTONS ========== */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.875rem 1.75rem;
  font-size: 1rem;
  font-weight: 600;
  border: none;
  border-radius: 8px;
  cursor: pointer;
  transition: all var(--transition-normal);
  text-decoration: none;
  font-family: inherit;
  position: relative;
  overflow: hidden;
}

.btn-primary {
  background: linear-gradient(135deg, var(--accent) 0%, var(--accent-muted) 100%);
  color: white;
  box-shadow: var(--shadow-md);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
  color: white;
}

.btn-secondary {
  background: transparent;
  color: var(--text-main);
  border: 2px solid var(--border-accent);
}

.btn-secondary:hover {
  background: var(--glass-bg);
  border-color: var(--accent);
  transform: translateY(-2px);
  color: var(--text-main);
}

.btn:active {
  transform: translateY(0);
}

/* ========== CARDS ========== */
.card {
  background: var(--glass-bg);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border: 1px solid var(--glass-border);
  border-radius: 12px;
  padding: var(--spacing-md);
  transition: all var(--transition-normal);
  box-shadow: var(--shadow-sm);
}

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

/* ========== GRID LAYOUTS ========== */
.grid {
  display: grid;
  gap: var(--spacing-md);
}

.grid-2 {
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
}

.grid-3 {
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
}

.grid-4 {
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
}

@media (max-width: 768px) {
  .grid-2,
  .grid-3,
  .grid-4 {
    grid-template-columns: 1fr;
  }
}

/* ========== BADGES & TAGS ========== */
.badge {
  display: inline-flex;
  align-items: center;
  padding: 0.375rem 0.875rem;
  font-size: 0.8rem;
  font-weight: 600;
  border-radius: 6px;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.badge-difficulty-advanced {
  background: rgba(220, 100, 100, 0.15);
  color: #ff9999;
  border: 1px solid rgba(220, 100, 100, 0.3);
}

.badge-difficulty-intermediate {
  background: rgba(220, 180, 100, 0.15);
  color: #ffc266;
  border: 1px solid rgba(220, 180, 100, 0.3);
}

.badge-difficulty-basic {
  background: rgba(100, 200, 150, 0.15);
  color: #88ddaa;
  border: 1px solid rgba(100, 200, 150, 0.3);
}

.tag {
  display: inline-block;
  padding: 0.35rem 0.75rem;
  font-size: 0.75rem;
  font-weight: 500;
  background: var(--bg-elevated);
  color: var(--text-muted);
  border: 1px solid var(--border-subtle);
  border-radius: 6px;
  margin: 0.25rem;
  transition: all var(--transition-fast);
}

.tag:hover {
  background: var(--bg-card);
  border-color: var(--accent);
  color: var(--accent);
}

/* ========== UTILITY CLASSES ========== */
.text-center {
  text-align: center;
}

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

.text-dim {
  color: var(--text-dim);
}

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

.mb-sm {
  margin-bottom: var(--spacing-sm);
}

.mb-md {
  margin-bottom: var(--spacing-md);
}

.mb-lg {
  margin-bottom: var(--spacing-lg);
}

.mt-sm {
  margin-top: var(--spacing-sm);
}

.mt-md {
  margin-top: var(--spacing-md);
}

.mt-lg {
  margin-top: var(--spacing-lg);
}

/* ========== ANIMATIONS ========== */
@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(30px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes fadeIn {
  from {
    opacity: 0;
  }
  to {
    opacity: 1;
  }
}

.reveal-on-scroll {
  opacity: 0;
}

.reveal-on-scroll.revealed {
  animation: fadeInUp 0.8s ease forwards;
}

/* Stagger animation delays for cards */
.stagger-1 { animation-delay: 0.1s; }
.stagger-2 { animation-delay: 0.2s; }
.stagger-3 { animation-delay: 0.3s; }
.stagger-4 { animation-delay: 0.4s; }
.stagger-5 { animation-delay: 0.5s; }

/* ========== RESPONSIVE ========== */
@media (max-width: 1024px) {
  :root {
    --spacing-lg: 3rem;
    --spacing-xl: 4rem;
  }
}

@media (max-width: 768px) {
  :root {
    --spacing-md: 1.5rem;
    --spacing-lg: 2.5rem;
    --spacing-xl: 3rem;
  }
  
  .section {
    padding: var(--spacing-lg) 0;
  }
  
  main {
    padding-top: 70px;
  }
}

@media (max-width: 480px) {
  :root {
    --spacing-md: 1rem;
    --spacing-lg: 2rem;
    --spacing-xl: 2.5rem;
  }
}

/* ========== 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-visible {
  outline: 2px solid var(--accent);
  outline-offset: 4px;
}

button:focus-visible,
a:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}