/* ==========================================================================
   1. Reset & Foundations
   ========================================================================== */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
  scroll-padding-top: 80px; /* Offset for sticky nav */
}

body {
  overflow-x: hidden;
  font-family: 'Inter', Helvetica Neue, Arial, sans-serif;
  background-color: var(--bg);
  color: var(--ink);
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
}

/* ==========================================================================
   2. Design Tokens (Variables)
   ========================================================================== */
:root {
  /* Refined Neo-Brutalist Palette (No Neon) */
  --bg: #f4efe6;          /* Warm off-white */
  --surface: #fffaf0;     /* Pure warm surface */
  --ink: #161616;         /* Near black */
  --muted: #6f6a61;       /* Soft gray/brown */
  /* --accent: #c85c3b;       Terracotta/Burnt Orange */
  --accent: #0E4C92;      /* Terracotta/Burnt Orange */
  --accent-2: #7c8062;    /* Deep Olive */
  --white: #ffffff;

  /* Structural Variables */
  --border-width: 3px;
  --border: var(--border-width) solid var(--ink);
  --shadow-offset: 8px;
  --shadow-offset-hover: 12px;
  --shadow: var(--shadow-offset) var(--shadow-offset) 0 var(--ink);
  
  --radius-sm: 0;         /* Hard edges */
  --radius-md: 2px;       /* Extremely subtle rounding */

  /* Spacing */
  --space-xs: 0.5rem;
  --space-sm: 1rem;
  --space-md: 2rem;
  --space-lg: 4rem;
  --space-xl: 6rem;
  
  /* Transitions */
  --transition-fast: 0.2s cubic-bezier(0.25, 1, 0.5, 1);
  --transition-slow: 0.6s cubic-bezier(0.25, 1, 0.5, 1);
}

/* Utilities */
.bg-surface { background-color: var(--surface); }
.bg-accent { background-color: var(--accent); }
.bg-accent-2 { background-color: var(--accent-2); }
.bg-ink { background-color: var(--ink); }
.text-white { color: var(--white); }
.text-accent { color: var(--accent); }
.text-center { text-align: center; }
.mt-xl { margin-top: var(--space-xl); }

/* Decorative Grid Background */
.has-grid {
  background-image: linear-gradient(var(--ink) 1px, transparent 1px),
                    linear-gradient(90deg, var(--ink) 1px, transparent 1px);
  background-size: 100px 100px;
  background-color: var(--bg);
  /* Make grid highly transparent */
  background-blend-mode: overlay;
  opacity: 0.95;
}
.has-grid.bg-surface { background-color: var(--surface); }

/* ==========================================================================
   3. Typography
   ========================================================================== */
h1, h2, h3, h4 {
  text-transform: uppercase;
  font-weight: 900;
  line-height: 1.1;
  letter-spacing: -0.02em;
}

h1 { font-size: clamp(3rem, 8vw, 8rem); }
h2.section-title {
  font-size: clamp(2.5rem, 6vw, 5rem);
  margin-bottom: var(--space-lg);
  border-bottom: var(--border);
  padding-bottom: var(--space-sm);
}
h3 { font-size: clamp(1.5rem, 3vw, 2.5rem); }
p {
  font-size: clamp(1rem, 1.5vw, 1.125rem);
  color: var(--ink);
  max-width: 65ch;
}

/* ==========================================================================
   4. Layout & Components
   ========================================================================== */
.container {
  width: min(92%, 1400px);
  margin-inline: auto;
}

.section {
  padding-block: var(--space-xl);
  border-bottom: var(--border);
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.75rem 1.5rem;
  font-weight: 700;
  text-transform: uppercase;
  text-decoration: none;
  border: var(--border);
  background: var(--surface);
  color: var(--ink);
  cursor: pointer;
  transition: all var(--transition-fast);
  box-shadow: 4px 4px 0 var(--ink);
}

.btn:hover, .btn:focus-visible {
  transform: translate(-4px, -4px);
  box-shadow: 8px 8px 0 var(--ink);
  outline: none;
}

.btn-primary { background: var(--accent); color: var(--white); }
.btn-secondary { background: var(--surface); color: var(--ink); }
.btn-large { padding: 1rem 2rem; font-size: 1.125rem; }
.btn-massive { padding: 1.5rem 3rem; font-size: clamp(1.2rem, 3vw, 2rem); box-shadow: var(--shadow); }
.btn-massive:hover { box-shadow: var(--shadow-offset-hover) var(--shadow-offset-hover) 0 var(--ink); }

/* Cards */
.card {
  background: var(--surface);
  border: var(--border);
  padding: var(--space-md);
  box-shadow: var(--shadow);
  transition: transform var(--transition-fast), box-shadow var(--transition-fast);
}
.card:hover {
  transform: translate(-4px, -4px);
  box-shadow: var(--shadow-offset-hover) var(--shadow-offset-hover) 0 var(--ink);
}

/* Tags */
.tag {
  display: inline-block;
  padding: 0.25rem 0.75rem;
  font-size: 0.875rem;
  font-weight: 700;
  text-transform: uppercase;
  border: 2px solid var(--ink);
  background: var(--surface);
  color: var(--ink);
}
.tag.outline-white { border-color: var(--white); background: transparent; color: var(--white); }

/* ==========================================================================
   5. Navigation
   ========================================================================== */
.navbar {
  position: sticky;
  top: 0;
  width: 100%;
  background: var(--bg);
  border-bottom: var(--border);
  z-index: 100;
}

.nav-container {
  display: flex;
  justify-content: space-between;
  align-items: center;
  height: 80px;
}

.wordmark {
  font-weight: 900;
  font-size: 1.5rem;
  text-transform: uppercase;
  text-decoration: none;
  color: var(--ink);
}

.nav-links {
  display: flex;
  align-items: center;
  gap: var(--space-md);
}

.nav-list {
  display: flex;
  list-style: none;
  gap: var(--space-md);
}

.nav-link {
  text-decoration: none;
  color: var(--ink);
  font-weight: 700;
  text-transform: uppercase;
  position: relative;
}
.nav-link::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 100%;
  height: 3px;
  background: var(--accent);
  transform: scaleX(0);
  transform-origin: right;
  transition: transform var(--transition-fast);
}
.nav-link:hover::after, .nav-link:focus-visible::after {
  transform: scaleX(1);
  transform-origin: left;
}

.menu-toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: 0.5rem;
}
.hamburger, .hamburger::before, .hamburger::after {
  display: block;
  width: 30px;
  height: 3px;
  background: var(--ink);
  position: relative;
  transition: var(--transition-fast);
}
.hamburger::before, .hamburger::after { content: ''; position: absolute; }
.hamburger::before { top: -8px; }
.hamburger::after { bottom: -8px; }

/* ==========================================================================
   6. Sections Details
   ========================================================================== */

/* Hero */
.hero {
  min-height: calc(100vh - 80px);
  display: flex;
  align-items: center;
  position: relative;
  overflow: hidden;
}
.hero-layout { position: relative; z-index: 1; }
.hero-title { margin-block: var(--space-sm); }
.hero-subtitle { font-size: clamp(1.125rem, 2vw, 1.5rem); margin-bottom: var(--space-lg); max-width: 800px;}
.hero-actions { display: flex; gap: var(--space-sm); flex-wrap: wrap; }

.status-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-weight: 700;
  font-size: 0.875rem;
  border: 2px solid var(--ink);
  padding: 0.25rem 0.75rem;
  background: var(--white);
}
.indicator {
  width: 10px; height: 10px;
  background: var(--accent);
  border-radius: 50%;
  animation: pulse 2s infinite;
}
@keyframes pulse {
  0% { opacity: 1; }
  50% { opacity: 0.4; }
  100% { opacity: 1; }
}

/* Hero Floating Tags */
.floating-tag {
  position: absolute;
  border: var(--border);
  padding: 0.5rem 1rem;
  background: var(--surface);
  font-weight: 700;
  box-shadow: 4px 4px 0 var(--ink);
  display: none; /* Shown on desktop via media query */
}

/* About */
.about-grid { display: grid; grid-template-columns: 1fr; gap: var(--space-md); }
.statement { font-size: clamp(2rem, 4vw, 3.5rem); color: var(--accent); margin-bottom: var(--space-md); }
.about-content p { margin-bottom: var(--space-sm); }

/* Skills */
.skills-layout { display: grid; grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); gap: var(--space-md); }
.card-header { font-size: 1.5rem; font-weight: 900; border-bottom: var(--border); padding-bottom: 1rem; margin-bottom: 1rem; }
.border-white { border-color: var(--white); }
.tag-cloud { display: flex; flex-wrap: wrap; gap: 0.5rem; }

/* Projects */
.project-list { display: flex; flex-direction: column; gap: var(--space-xl); }
.project-card { display: grid; grid-template-columns: 1fr; border: var(--border); box-shadow: var(--shadow); background: var(--white); }
.project-visual { border-bottom: var(--border); min-height: 250px; overflow: hidden; position: relative; }
/* Simulated Image fallback */
.project-img { width: 100%; height: 100%; object-fit: cover; opacity: 1; mix-blend-mode: multiply; transition: transform var(--transition-slow); }
.project-card:hover .project-img { transform: scale(1.05); }

.project-info { padding: var(--space-md); display: flex; flex-direction: column; justify-content: center; }
.project-meta { display: flex; justify-content: space-between; font-weight: 900; border-bottom: 2px solid var(--ink); padding-bottom: 0.5rem; margin-bottom: 1rem; }
.project-num { font-size: 2rem; line-height: 1; color: var(--accent); }
.project-desc { margin-block: var(--space-sm); }
.project-tech { display: flex; flex-wrap: wrap; gap: 0.5rem; margin-bottom: var(--space-lg); }
.tech-tag { font-family: monospace; font-size: 0.85rem; font-weight: bold; background: var(--bg); padding: 0.2rem 0.5rem; border: 1px solid var(--ink); }
.project-links { display: flex; gap: var(--space-sm); margin-top: auto; flex-wrap: wrap; }

/* Process */
.process-timeline { display: grid; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); gap: var(--space-md); }
.process-step { position: relative; }
.step-num { font-size: 4rem; font-weight: 900; color: var(--accent); line-height: 0.8; margin-bottom: var(--space-sm); }

/* Journey */
.journey-track { border-left: var(--border); padding-left: var(--space-md); display: flex; flex-direction: column; gap: var(--space-md); }
.journey-item { position: relative; }
/* .journey-item::before { content: ''; position: absolute; left: calc(-var(--space-md) - (var(--border-width)*2) - 4px); top: 0; width: 20px; height: 20px; background: var(--accent); border: var(--border); } */
.journey-year { font-weight: 900; font-size: 1.5rem; margin-bottom: 0.5rem; }

/* Playground */
.playground-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(250px, 1fr)); gap: var(--space-md); }
.play-item { height: 250px; display: flex; flex-direction: column; align-items: center; justify-content: center; position: relative; }
.play-label { position: absolute; bottom: var(--space-sm); font-size: 0.75rem; font-weight: 700; text-transform: uppercase; }
/* Fake Skeleton */
.skeleton-loader { width: 80%; height: 20px; background: var(--bg); border: 2px solid var(--ink); position: relative; overflow: hidden; }
.skeleton-loader::after { content: ''; position: absolute; top: 0; left: -100%; width: 50%; height: 100%; background: var(--surface); animation: shimmer 1.5s infinite; }
@keyframes shimmer { 100% { left: 200%; } }
/* Fake Toggle */
.toggle-switch input { display: none; }
.toggle-label { display: block; width: 60px; height: 30px; border: var(--border); background: var(--surface); position: relative; cursor: pointer; transition: background 0.3s; }
.toggle-label::after { content: ''; position: absolute; top: 2px; left: 2px; width: 20px; height: 20px; background: var(--ink); transition: 0.3s; }
.toggle-switch input:checked + .toggle-label { background: var(--accent); }
.toggle-switch input:checked + .toggle-label::after { left: 32px; background: var(--white); }
/* Typography Spec */
.typography-spec { font-size: 4rem; font-weight: 900; line-height: 1; color: var(--white); }

/* Contact */
.massive-title { font-size: clamp(3rem, 8vw, 7rem); margin-bottom: var(--space-md); }
.contact-subtitle { font-size: 1.5rem; margin-inline: auto; margin-bottom: var(--space-lg); }
.social-links { display: flex; flex-wrap: wrap; justify-content: center; gap: var(--space-md); }
.social-link { font-weight: 700; color: var(--ink); text-transform: uppercase; text-decoration: none; border-bottom: 3px solid transparent; transition: border-color var(--transition-fast); }
.social-link:hover { border-color: var(--accent); }

/* Footer */
.footer-layout { display: flex; flex-wrap: wrap; justify-content: space-between; align-items: center; padding-block: var(--space-md); gap: var(--space-md); }
.footer-name { font-weight: 900; font-size: 1.25rem; }

/* ==========================================================================
   7. Animations & JS State Classes
   ========================================================================== */
.reveal { opacity: 0; transform: translateY(40px); transition: opacity var(--transition-slow), transform var(--transition-slow); }
.reveal.active { opacity: 1; transform: translateY(0); }

/* Initial load stagger */
.slide-up { animation: slideUpFade 0.8s cubic-bezier(0.25, 1, 0.5, 1) forwards; opacity: 0; transform: translateY(30px); }
.stagger-1 { animation-delay: 0.1s; }
.stagger-2 { animation-delay: 0.2s; }
.stagger-3 { animation-delay: 0.3s; }
@keyframes slideUpFade { to { opacity: 1; transform: translateY(0); } }

/* ==========================================================================
   8. Responsive Design Strategy
   ========================================================================== */

/* Tablet & Desktop */
@media (min-width: 768px) {
  .about-grid { grid-template-columns: 1fr 2fr; }
  
  .project-card { grid-template-columns: 1.2fr 1fr; }
  /* Alternating layout for projects */
  .project-card:nth-child(even) { grid-template-columns: 1fr 1.2fr; }
  .project-card:nth-child(even) .project-visual { order: 2; border-bottom: none; border-left: var(--border); }
  .project-card:nth-child(even) .project-info { order: 1; }
  .project-visual { border-bottom: none; border-right: var(--border); }
}

@media (min-width: 1024px) {
  .floating-tag { display: block; }
  .tag-1 { top: 15%; right: 10%; transform: rotate(4deg); }
  .tag-2 { bottom: 25%; right: 15%; transform: rotate(-3deg); }
  .tag-3 { bottom: 20%; left: 10%; transform: rotate(5deg); }
  .tag-4 { top: 25%; left: 5%; transform: rotate(-6deg); }
}

/* Mobile & Hamburger Menu */
@media (max-width: 767px) {
  .menu-toggle { display: block; z-index: 1000; }
  .nav-links {
    position: fixed;
    top: 80px; /* Below navbar */
    left: 0;
    width: 100%;
    height: calc(100vh - 80px);
    background: var(--bg);
    flex-direction: column;
    justify-content: flex-start;
    padding: var(--space-lg) var(--space-md);
    transform: translateX(100%);
    transition: transform var(--transition-fast);
    border-top: var(--border);
  }
  .nav-links.nav-active { transform: translateX(0); }
  .nav-list { flex-direction: column; width: 100%; text-align: center; font-size: 2rem; gap: var(--space-lg); margin-bottom: var(--space-lg); }
  .nav-cta { width: 100%; text-align: center; }
  
  .hamburger.active { background: transparent; }
  .hamburger.active::before { transform: rotate(45deg); top: 0; }
  .hamburger.active::after { transform: rotate(-45deg); bottom: 0; }

  /* Reset alternating project layout for mobile */
  .project-visual, .project-card:nth-child(even) .project-visual {
    border-right: none;
    border-left: none;
    border-bottom: var(--border);
  }
}

/* Accessibility: Reduced Motion */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
  .reveal { opacity: 1; transform: none; }
}