/* ═══════════════════════════════════════════════════
   Patrick Chojnacki — Hacker Aesthetic
   ═══════════════════════════════════════════════════ */

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

:root {
  --color-bg: #0a0a0f;
  --color-surface: #12121a;
  --color-border: #1e1e2e;
  --color-text: #c0caf5;
  --color-muted: #565f89;
  --color-accent: #7aa2f7;
  --color-accent-dim: #3d59a1;
  --color-green: #9ece6a;
  --color-red: #f7768e;
  --color-yellow: #e0af68;
  --color-purple: #bb9af7;
  --font-mono: 'SF Mono', 'Fira Code', 'JetBrains Mono', 'Cascadia Code', monospace;
  --font-sans: -apple-system, BlinkMacSystemFont, 'Segoe UI', system-ui, sans-serif;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-mono);
  background: var(--color-bg);
  color: var(--color-text);
  line-height: 1.7;
  font-size: 15px;
  overflow-x: hidden;
}

/* Scanline overlay */
.scanline {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
  z-index: 9999;
  background: repeating-linear-gradient(
    0deg,
    transparent,
    transparent 2px,
    rgba(0, 0, 0, 0.03) 2px,
    rgba(0, 0, 0, 0.03) 4px
  );
}

/* Noise texture */
.noise {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
  z-index: 9998;
  opacity: 0.02;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='noise'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.65' numOctaves='3' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23noise)'/%3E%3C/svg%3E");
}

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

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

a:hover {
  color: var(--color-green);
}

/* ── Navigation ── */
header {
  position: fixed;
  top: 0;
  width: 100%;
  background: rgba(10, 10, 15, 0.9);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--color-border);
  z-index: 1000;
}

nav {
  max-width: 1000px;
  margin: 0 auto;
  padding: 1rem 2rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.logo {
  font-size: 1.1rem;
  font-weight: 600;
  color: var(--color-green);
  letter-spacing: -0.5px;
}

.logo:hover {
  color: var(--color-green);
  opacity: 0.8;
}

.blink {
  animation: blink 1s step-end infinite;
}

@keyframes blink {
  0%, 50% { opacity: 1; }
  51%, 100% { opacity: 0; }
}

nav ul {
  list-style: none;
  display: flex;
  gap: 2rem;
}

nav ul a {
  color: var(--color-muted);
  font-size: 0.85rem;
  transition: color 0.2s;
}

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

.menu-btn {
  display: none;
  background: none;
  border: 1px solid var(--color-border);
  color: var(--color-text);
  font-size: 1.5rem;
  cursor: pointer;
  padding: 0.25rem 0.5rem;
  border-radius: 4px;
}

/* ── Main ── */
main {
  max-width: 1000px;
  margin: 0 auto;
  padding: 0 2rem;
}

section {
  padding: 6rem 0 4rem;
}

h2 {
  font-size: 1.5rem;
  font-weight: 600;
  margin-bottom: 2rem;
  color: var(--color-text);
}

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

/* ── Hero / Terminal ── */
.hero {
  min-height: 90vh;
  display: flex;
  align-items: center;
  padding-top: 4rem;
}

.terminal-window {
  width: 100%;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: 8px;
  overflow: hidden;
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.5);
}

.terminal-header {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 12px 16px;
  background: rgba(30, 30, 46, 0.5);
  border-bottom: 1px solid var(--color-border);
}

.dot {
  width: 12px;
  height: 12px;
  border-radius: 50%;
}

.dot.red { background: var(--color-red); }
.dot.yellow { background: var(--color-yellow); }
.dot.green { background: var(--color-green); }

.terminal-title {
  margin-left: auto;
  font-size: 0.75rem;
  color: var(--color-muted);
}

.terminal-body {
  padding: 2rem;
}

.terminal-body h1 {
  font-size: 2.5rem;
  font-weight: 700;
  color: var(--color-text);
  margin: 0.25rem 0 1.5rem 1.5rem;
  letter-spacing: -1px;
}

.cmd {
  color: var(--color-muted);
  margin-bottom: 0.25rem;
  font-size: 0.9rem;
}

.prompt {
  color: var(--color-green);
  margin-right: 0.5rem;
}

.output {
  color: var(--color-text);
  margin: 0.25rem 0 1.5rem 1.5rem;
  font-size: 1rem;
}

.cursor {
  color: var(--color-accent);
  animation: blink 1s step-end infinite;
}

.typing {
  margin-top: 1rem;
}

/* ── About ── */
.about-grid {
  display: grid;
  grid-template-columns: 2fr 1fr;
  gap: 3rem;
  align-items: start;
}

.about-text p {
  margin-bottom: 1rem;
  color: var(--color-text);
  font-family: var(--font-sans);
  font-size: 1rem;
  line-height: 1.8;
}

.stats {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
  padding: 1.5rem;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: 8px;
}

.stat {
  display: flex;
  flex-direction: column;
}

.stat-num {
  font-size: 2rem;
  font-weight: 700;
  color: var(--color-accent);
  line-height: 1;
}

.stat-label {
  font-size: 0.8rem;
  color: var(--color-muted);
  margin-top: 0.25rem;
}

/* ── Stack ── */
.stack-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1rem;
}

.stack-item {
  padding: 1.25rem;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: 6px;
  transition: border-color 0.2s;
}

.stack-item:hover {
  border-color: var(--color-accent-dim);
}

.stack-item h3 {
  font-size: 0.85rem;
  color: var(--color-accent);
  margin-bottom: 0.5rem;
  text-transform: uppercase;
  letter-spacing: 1px;
}

.stack-item p {
  font-size: 0.85rem;
  color: var(--color-muted);
  font-family: var(--font-sans);
}

/* ── Projects ── */
.project-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 1.5rem;
}

.project-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: 8px;
  padding: 1.75rem;
  transition: border-color 0.3s, transform 0.2s;
  position: relative;
  overflow: hidden;
}

.project-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--color-accent), var(--color-purple));
  opacity: 0;
  transition: opacity 0.3s;
}

.project-card:hover {
  border-color: var(--color-accent-dim);
  transform: translateY(-2px);
}

.project-card:hover::before {
  opacity: 1;
}

.project-card.featured {
  grid-column: 1 / -1;
  border-color: var(--color-accent-dim);
}

.project-card.featured::before {
  opacity: 1;
}

.project-tag {
  display: inline-block;
  font-size: 0.7rem;
  text-transform: uppercase;
  letter-spacing: 1.5px;
  color: var(--color-green);
  background: rgba(158, 206, 106, 0.1);
  padding: 0.2rem 0.6rem;
  border-radius: 3px;
  margin-bottom: 0.75rem;
}

.project-card h3 {
  font-size: 1.2rem;
  margin-bottom: 0.75rem;
  color: var(--color-text);
}

.project-card p {
  color: var(--color-muted);
  font-family: var(--font-sans);
  font-size: 0.9rem;
  margin-bottom: 1rem;
  line-height: 1.6;
}

.project-tech {
  font-size: 0.75rem;
  color: var(--color-accent-dim);
  letter-spacing: 0.5px;
}

.project-card a {
  display: inline-block;
  margin-top: 0.75rem;
  font-size: 0.85rem;
  color: var(--color-accent);
}

/* ── Services ── */
.services-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1.5rem;
}

.service-card {
  padding: 2rem;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: 8px;
  border-left: 3px solid var(--color-accent-dim);
  transition: border-left-color 0.3s;
}

.service-card:hover {
  border-left-color: var(--color-accent);
}

.service-card h3 {
  font-size: 1rem;
  margin-bottom: 0.75rem;
  color: var(--color-text);
}

.service-card p {
  font-size: 0.9rem;
  color: var(--color-muted);
  font-family: var(--font-sans);
  line-height: 1.7;
}

/* ── Contact ── */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 3rem;
  align-items: center;
}

.contact-text p {
  font-family: var(--font-sans);
  font-size: 1.1rem;
  margin-bottom: 0.75rem;
}

.contact-links {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.contact-link {
  display: flex;
  align-items: center;
  gap: 1rem;
  padding: 1rem 1.5rem;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: 6px;
  color: var(--color-text);
  transition: border-color 0.2s;
}

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

.contact-icon {
  font-size: 1.25rem;
}

.contact-soon {
  font-family: var(--font-sans);
  color: var(--color-muted);
  font-size: 0.95rem;
  padding: 1.5rem;
  background: var(--color-surface);
  border: 1px dashed var(--color-border);
  border-radius: 6px;
  text-align: center;
}

/* ── Footer ── */
footer {
  max-width: 1000px;
  margin: 0 auto;
  padding: 3rem 2rem;
  border-top: 1px solid var(--color-border);
  text-align: center;
  color: var(--color-muted);
  font-size: 0.8rem;
}

/* ── Responsive ── */
@media (max-width: 768px) {
  .about-grid {
    grid-template-columns: 1fr;
  }

  .stats {
    flex-direction: row;
    justify-content: space-around;
  }

  .stack-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .services-grid {
    grid-template-columns: 1fr;
  }

  .contact-grid {
    grid-template-columns: 1fr;
    gap: 2rem;
  }

  .project-card.featured {
    grid-column: auto;
  }
}

@media (max-width: 600px) {
  body {
    font-size: 14px;
  }

  nav ul {
    position: fixed;
    top: 60px;
    left: 0;
    right: 0;
    background: rgba(10, 10, 15, 0.98);
    flex-direction: column;
    align-items: center;
    padding: 2rem;
    gap: 1.5rem;
    border-bottom: 1px solid var(--color-border);
    transform: translateY(-100%);
    opacity: 0;
    pointer-events: none;
    transition: transform 0.3s, opacity 0.3s;
  }

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

  .menu-btn {
    display: block;
  }

  .terminal-body h1 {
    font-size: 1.75rem;
  }

  .stack-grid {
    grid-template-columns: 1fr;
  }

  .project-grid {
    grid-template-columns: 1fr;
  }

  section {
    padding: 4rem 0 3rem;
  }
}