@import url('https://fonts.googleapis.com/css2?family=IBM+Plex+Mono:wght@400;500&family=Press+Start+2P&family=VT323&display=swap');

:root {
  --bg:          #282a36;
  --surface:     #383a4a;
  --surface-2:   #44475a;
  --accent:      #50fa7b;
  --accent-dim:  #1f7a3a;
  --accent-blue: #8be9fd;
  --blue-dim:    #2a6a7a;
  --text:        #f8f8f2;
  --muted:       #6272a4;
  --border:      #44475a;
  --border-hi:   #6272a4;

  --font-pixel:    'Press Start 2P', monospace;
  --font-terminal: 'VT323', monospace;
  --font-body:     'IBM Plex Mono', monospace;

  --shadow-px:       4px 4px 0 var(--accent-dim);
  --shadow-px-hover: 6px 6px 0 var(--accent-dim);

  --max-w:  900px;
  --gap-lg: 5rem;
  --pad-x:  1.5rem;
}

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

html { scroll-behavior: smooth; }

body {
  background-color: var(--bg);
  color: var(--text);
  font-family: var(--font-body);
  font-size: 1rem;
  line-height: 1.7;
  min-height: 100vh;
}

@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;
  }
}

.skip-link {
  position: absolute;
  top: -100%;
  left: 1rem;
  background: var(--accent);
  color: var(--bg);
  padding: 0.5rem 1rem;
  font-family: var(--font-pixel);
  font-size: 0.625rem;
  line-height: 1.6;
  text-decoration: none;
  z-index: 9999;
}

.skip-link:focus { top: 0.5rem; }

:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 3px;
}

header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(40, 42, 54, 0.96);
  border-bottom: 1px solid var(--border);
  padding: 0 var(--pad-x);
  backdrop-filter: blur(6px);
}

nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  max-width: var(--max-w);
  margin: 0 auto;
  height: 3.5rem;
  gap: 1rem;
}

.nav-brand {
  font-family: var(--font-pixel);
  font-size: 0.75rem;
  color: var(--accent);
  white-space: nowrap;
  flex-shrink: 0;
  text-decoration: none;
  transition: opacity 0.15s;
}

.nav-brand:hover { opacity: 0.75; }

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

.nav-links {
  display: flex;
  list-style: none;
  gap: 0.25rem;
  flex-wrap: wrap;
  justify-content: flex-end;
}

.nav-links a {
  color: var(--muted);
  text-decoration: none;
  font-family: var(--font-pixel);
  font-size: 0.5rem;
  letter-spacing: 0.05em;
  padding: 0.375rem 0.5rem;
  transition: color 0.15s;
  display: block;
}

.nav-links a:hover { color: var(--accent); }

main {
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 0 var(--pad-x);
}

section {
  padding: var(--gap-lg) 0;
  border-bottom: 1px solid var(--border);
}

section:last-child { border-bottom: none; }

.section-header { margin-bottom: 2rem; }

.section-header h2 {
  font-family: var(--font-pixel);
  font-size: clamp(0.625rem, 2vw, 0.875rem);
  color: var(--text);
  line-height: 1.8;
}

.section-prefix { color: var(--accent); }
.section-ext    { color: var(--muted); }

.section-header::after {
  content: '';
  display: block;
  width: 2.5rem;
  height: 2px;
  background: var(--accent);
  margin-top: 1rem;
  box-shadow: 2px 2px 0 var(--accent-dim);
}

.btn-primary {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  background: transparent;
  color: var(--accent);
  border: 2px solid var(--accent);
  padding: 0.75rem 1.5rem;
  font-family: var(--font-pixel);
  font-size: 0.5625rem;
  line-height: 1.6;
  text-decoration: none;
  box-shadow: var(--shadow-px);
  transition: transform 0.1s ease, box-shadow 0.1s ease, background-color 0.15s ease;
  width: fit-content;
}

.btn-primary:hover {
  transform: translate(-2px, -2px);
  box-shadow: var(--shadow-px-hover);
  background-color: rgba(80, 250, 123, 0.07);
}

.btn-primary:active {
  transform: translate(2px, 2px);
  box-shadow: none;
}

.btn-large { padding: 1rem 2rem; font-size: 0.625rem; }

#hero {
  padding-top: 4rem;
  display: flex;
  flex-direction: column;
  gap: 2.5rem;
}

.hero-content {
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
}

#hero h1 {
  font-family: var(--font-pixel);
  font-size: clamp(1rem, 4.5vw, 1.625rem);
  color: var(--text);
  line-height: 1.9;
}

.hero-tagline {
  font-family: var(--font-terminal);
  font-size: clamp(1.25rem, 3vw, 1.625rem);
  color: var(--accent);
  line-height: 1.4;
  max-width: 560px;
}

.hero-desc {
  font-family: var(--font-body);
  font-size: clamp(0.875rem, 2vw, 1rem);
  color: var(--muted);
  max-width: 520px;
  line-height: 1.8;
}

.hero-location {
  font-family: var(--font-pixel);
  font-size: 0.5rem;
  color: var(--muted);
  letter-spacing: 0.05em;
}

.hero-location span { color: var(--accent-blue); }

.terminal-window {
  background: var(--surface);
  border: 1px solid var(--border);
  box-shadow: var(--shadow-px);
  overflow: hidden;
  width: 100%;
  max-width: 500px;
}

.terminal-bar {
  background: var(--border);
  padding: 0.5rem 0.875rem;
  display: flex;
  align-items: center;
  gap: 0.4rem;
}

.terminal-dot {
  width: 10px;
  height: 10px;
  border-radius: 0;
  display: inline-block;
  flex-shrink: 0;
}

.dot-red    { background: #ff5f57; }
.dot-yellow { background: #febc2e; }
.dot-green  { background: #28c840; }

.terminal-title {
  font-family: var(--font-terminal);
  font-size: 1rem;
  color: var(--muted);
  margin-left: auto;
}

.terminal-body {
  padding: 1rem 1.25rem;
  min-height: 9rem;
}

.terminal-line {
  font-family: var(--font-terminal);
  font-size: 1.125rem;
  display: flex;
  align-items: baseline;
  gap: 0.2rem;
  flex-wrap: wrap;
}

.t-prompt { color: var(--accent); }
.t-sep    { color: var(--text); }
.t-dir    { color: var(--accent-blue); }
.t-dollar { color: var(--text); margin-right: 0.4rem; }
.t-cmd    { color: var(--text); }

.terminal-output {
  font-family: var(--font-terminal);
  font-size: 1.125rem;
  color: var(--muted);
  margin-top: 0.5rem;
  white-space: pre;
  line-height: 1.8;
}

.cursor {
  color: var(--accent);
  font-size: 1.125rem;
  animation: blink 0.8s step-end infinite;
}

.about-text p {
  font-family: var(--font-body);
  font-size: 0.9375rem;
  color: var(--text);
  line-height: 1.85;
  margin-bottom: 1rem;
}

.about-text p:last-child { margin-bottom: 0; }

.about-badges {
  display: flex;
  flex-wrap: wrap;
  gap: 0.625rem;
  margin-top: 1.75rem;
}

.badge {
  font-family: var(--font-pixel);
  font-size: 0.4375rem;
  color: var(--accent-blue);
  border: 1px solid var(--border-hi);
  padding: 0.4rem 0.75rem;
  background: var(--surface);
  letter-spacing: 0.05em;
  line-height: 1.8;
}

.badge-icon {
  color: var(--accent);
  margin-right: 0.25rem;
}

.skills-groups {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1rem;
}

.skills-group {
  background: var(--surface);
  border: 1px solid var(--border);
  padding: 1.25rem;
  transition: border-color 0.15s;
}

.skills-group:hover { border-color: var(--border-hi); }

.group-label {
  font-family: var(--font-pixel);
  font-size: 0.4375rem;
  color: var(--muted);
  margin-bottom: 0.875rem;
  letter-spacing: 0.05em;
  line-height: 1.8;
}

.tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.tag {
  font-family: var(--font-terminal);
  font-size: 1.125rem;
  color: var(--text);
  background: var(--surface-2);
  border: 1px solid var(--border-hi);
  padding: 0.2rem 0.6rem;
  line-height: 1.5;
  transition: border-color 0.15s, color 0.15s;
  cursor: default;
}

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

.tag-secondary {
  color: var(--muted);
  border-color: var(--border);
}

.tag-ai {
  color: #bd93f9;
  border-color: rgba(189, 147, 249, 0.4);
}

.tag-ai:hover {
  color: #bd93f9;
  border-color: #bd93f9;
}

.highlights {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.highlights li {
  display: flex;
  gap: 1rem;
  align-items: flex-start;
  background: var(--surface);
  border: 1px solid var(--border);
  border-left: 3px solid var(--accent);
  padding: 1.25rem 1.25rem 1.25rem 1rem;
  transition: border-color 0.15s;
}

.highlights li:hover {
  border-color: var(--border-hi);
  border-left-color: var(--accent);
}

.hi-icon {
  color: var(--accent);
  font-size: 1.25rem;
  line-height: 1.8;
  flex-shrink: 0;
  font-family: var(--font-terminal);
}

.highlights li strong {
  display: block;
  font-family: var(--font-pixel);
  font-size: 0.5rem;
  color: var(--text);
  margin-bottom: 0.5rem;
  line-height: 1.9;
}

.highlights li p {
  font-family: var(--font-body);
  font-size: 0.875rem;
  color: var(--muted);
  line-height: 1.75;
}

.contact-content {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
  align-items: flex-start;
}

.contact-desc {
  font-family: var(--font-body);
  font-size: 0.9375rem;
  color: var(--text);
  max-width: 520px;
  line-height: 1.8;
}

.contact-terminal {
  font-family: var(--font-terminal);
  font-size: 1.125rem;
  background: var(--surface);
  border: 1px solid var(--border);
  padding: 0.75rem 1.25rem;
  display: flex;
  flex-wrap: wrap;
  gap: 0.2rem;
  align-items: center;
  width: 100%;
  max-width: 480px;
}

.contact-location {
  font-family: var(--font-pixel);
  font-size: 0.4375rem;
  color: var(--muted);
  letter-spacing: 0.05em;
  line-height: 1.8;
}

footer {
  border-top: 1px solid var(--border);
  padding: 2.5rem var(--pad-x);
}

.footer-content {
  max-width: var(--max-w);
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
}

.footer-brand {
  font-family: var(--font-pixel);
  font-size: 0.5rem;
  color: var(--muted);
  letter-spacing: 0.05em;
  line-height: 1.8;
}

.footer-hobby {
  font-family: var(--font-pixel);
  font-size: 0.4375rem;
  color: var(--muted);
  letter-spacing: 0.05em;
  line-height: 1.8;
  margin-top: 0.375rem;
}

.footer-hobby a {
  color: var(--accent-blue);
  text-decoration: none;
  transition: color 0.15s;
}

.footer-hobby a:hover { color: var(--accent); }

.back-to-top {
  position: fixed;
  bottom: 1.5rem;
  right: 1.5rem;
  width: 2.75rem;
  height: 2.75rem;
  background: var(--surface);
  color: var(--accent);
  border: 2px solid var(--accent);
  font-family: var(--font-terminal);
  font-size: 1.25rem;
  line-height: 1;
  cursor: pointer;
  box-shadow: var(--shadow-px);
  z-index: 50;
  opacity: 0;
  transform: translateY(0.75rem);
  transition: opacity 0.2s ease, transform 0.2s ease, background-color 0.15s ease, box-shadow 0.1s ease;
  display: flex;
  align-items: center;
  justify-content: center;
}

.back-to-top.visible {
  opacity: 1;
  transform: translateY(0);
}

.back-to-top:hover {
  background-color: rgba(80, 250, 123, 0.08);
  transform: translate(-2px, -2px);
  box-shadow: var(--shadow-px-hover);
}

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

@media (min-width: 640px) {
  .skills-groups { grid-template-columns: 1fr 1fr; }
}

@media (min-width: 768px) {
  #hero {
    flex-direction: row;
    align-items: flex-start;
    justify-content: space-between;
    gap: 3rem;
  }

  .hero-content {
    flex: 1 1 0;
    min-width: 0;
    order: 0;
  }

  .terminal-window {
    width: 340px;
    flex-shrink: 0;
    order: 1;
    align-self: flex-start;
    margin-top: 4rem;
  }
}

@media (min-width: 1024px) {
  :root { --gap-lg: 6rem; }
  .skills-groups  { grid-template-columns: repeat(3, 1fr); }
  .terminal-window { width: 380px; }
}