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

:root {
  --bg:        #080808;
  --surface:   #111111;
  --card:      #141414;
  --border:    #1f1f1f;
  --border-hi: #2a2a2a;
  --accent:    #00ff88;
  --accent-dim:#00cc6a;
  --text:      #e8e8e8;
  --muted:     #555555;
  --muted-hi:  #888888;
  --red:       #ff5f57;
  --yellow:    #febc2e;
  --green:     #28c840;

  --font: 'JetBrains Mono', 'Consolas', monospace;
  --radius: 6px;
  --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

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

body {
  background: var(--bg);
  color: var(--text);
  font-family: var(--font);
  line-height: 1.6;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

.accent  { color: var(--accent); }
.muted   { color: var(--muted-hi); }
.hidden  { opacity: 0; pointer-events: none; }

::-webkit-scrollbar          { width: 4px; }
::-webkit-scrollbar-track    { background: var(--bg); }
::-webkit-scrollbar-thumb    { background: var(--border-hi); border-radius: 2px; }
::-webkit-scrollbar-thumb:hover { background: var(--muted); }

::selection { background: var(--accent); color: #000; }

:focus-visible {
  outline: 1px solid var(--accent);
  outline-offset: 3px;
}

#boot-screen {
  position: fixed;
  inset: 0;
  z-index: 9999;
  background: var(--bg);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 2rem;
  transition: opacity 0.6s ease, transform 0.6s ease;
}

#boot-screen.fade-out {
  opacity: 0;
  transform: scale(0.98);
  pointer-events: none;
}

.boot-inner {
  max-width: 560px;
  width: 100%;
}

.boot-output {
  font-size: 0.85rem;
  line-height: 2;
  color: var(--muted-hi);
  min-height: 280px;
}

.boot-output .boot-line {
  display: block;
  opacity: 0;
  animation: fadeInLine 0.1s forwards;
}

.boot-output .boot-prompt-line {
  color: var(--accent);
}

.boot-output .boot-result {
  color: var(--text);
  padding-left: 0;
}

.boot-output .boot-gap {
  display: block;
  height: 0.5rem;
}

.boot-output .boot-name {
  color: var(--accent);
  font-size: 1.1rem;
  font-weight: 700;
}

.boot-output .boot-aka {
  color: var(--muted-hi);
  font-size: 0.8rem;
}

.boot-output .boot-role {
  color: var(--text);
}

@keyframes fadeInLine {
  to { opacity: 1; }
}

.boot-cursor {
  display: inline-block;
  color: var(--accent);
  font-size: 1rem;
  animation: blink 1s step-end infinite;
  line-height: 2;
}

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

.boot-prompt {
  margin-top: 1.5rem;
}

.prompt-hint {
  font-size: 0.75rem;
  color: var(--muted);
  animation: pulse 2s ease-in-out infinite;
}

@keyframes pulse {
  0%, 100% { opacity: 0.4; }
  50%       { opacity: 1; }
}

#nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1.25rem 2rem;
  background: rgba(8, 8, 8, 0.85);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
  transition: opacity 0.4s ease;
}

.nav-brand {
  font-size: 0.9rem;
  font-weight: 700;
  color: var(--accent);
  letter-spacing: 0.05em;
}

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

.nav-links a {
  text-decoration: none;
  font-size: 0.78rem;
  color: var(--muted-hi);
  letter-spacing: 0.04em;
  transition: color var(--transition);
  position: relative;
}

.nav-links a::after {
  content: '';
  position: absolute;
  left: 0;
  bottom: -2px;
  width: 0;
  height: 1px;
  background: var(--accent);
  transition: width var(--transition);
}

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

.nav-links a:hover::after {
  width: 100%;
}

section {
  padding: 7rem 2rem;
  max-width: 860px;
  margin: 0 auto;
}

.section-label {
  font-size: 0.72rem;
  color: var(--muted);
  letter-spacing: 0.1em;
  margin-bottom: 2.5rem;
  text-transform: lowercase;
}

#hero {
  min-height: 100svh;
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding-top: 5rem;
  position: relative;
}

.hero-inner {
  position: relative;
}

.hero-tag {
  font-size: 0.75rem;
  color: var(--muted);
  letter-spacing: 0.08em;
  margin-bottom: 1.25rem;
}

.hero-name {
  font-size: clamp(4rem, 14vw, 9rem);
  font-weight: 800;
  line-height: 0.9;
  letter-spacing: -0.03em;
  color: var(--text);
  position: relative;
  display: inline-block;
}

.hero-name::before {
  content: '';
  position: absolute;
  bottom: 0.08em;
  left: 0;
  right: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--accent), transparent);
  opacity: 0.6;
}

.hero-realname {
  font-size: 0.85rem;
  color: var(--muted-hi);
  margin-top: 0.75rem;
  letter-spacing: 0.06em;
}

.hero-sub {
  margin-top: 1.75rem;
  font-size: 0.82rem;
  color: var(--muted);
  letter-spacing: 0.04em;
}

.hero-sub .dot {
  margin: 0 0.5em;
  color: var(--accent);
}

.hero-scroll-hint {
  position: absolute;
  bottom: 2.5rem;
  left: 0;
  font-size: 0.7rem;
  color: var(--muted);
  letter-spacing: 0.1em;
  writing-mode: vertical-lr;
  animation: scrollBob 2s ease-in-out infinite;
}

@keyframes scrollBob {
  0%, 100% { transform: translateY(0); opacity: 0.4; }
  50%       { transform: translateY(6px); opacity: 0.8; }
}

.terminal-card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow:
    0 0 0 1px rgba(0,255,136,0.04),
    0 20px 60px rgba(0,0,0,0.5);
}

.term-bar {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 0.7rem 1rem;
  background: var(--surface);
  border-bottom: 1px solid var(--border);
}

.term-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
}
.term-dot.red    { background: var(--red); }
.term-dot.yellow { background: var(--yellow); }
.term-dot.green  { background: var(--green); }

.term-title {
  margin-left: 0.5rem;
  font-size: 0.7rem;
  color: var(--muted);
  letter-spacing: 0.04em;
}

.term-body {
  padding: 1.5rem 1.5rem 1.75rem;
}

.term-line {
  font-size: 0.82rem;
  display: flex;
  align-items: baseline;
  gap: 0.6em;
}

.term-line.mt {
  margin-top: 1.5rem;
}

.term-prompt {
  color: var(--accent);
  user-select: none;
}

.term-cmd {
  color: var(--text);
}

.term-output {
  margin-top: 0.5rem;
  padding-left: 1.1rem;
  border-left: 1px solid var(--border);
  margin-left: 0.5rem;
}

.term-field {
  display: flex;
  gap: 1rem;
  font-size: 0.8rem;
  padding: 0.15rem 0;
}

.term-key {
  color: var(--muted-hi);
  min-width: 80px;
}

.term-val {
  color: var(--text);
}

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

.term-list-item {
  font-size: 0.8rem;
  color: var(--text);
  padding: 0.18rem 0;
  display: flex;
  gap: 0.6em;
  align-items: baseline;
}

.term-list-item .accent {
  color: var(--accent);
  font-size: 0.7em;
}

.term-val.muted {
  color: var(--muted-hi);
  font-style: italic;
}

.blink-line {
  margin-top: 1.5rem;
}

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

.skills-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1px;
  background: var(--border);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
}

.skill-card {
  background: var(--card);
  padding: 2rem 1.75rem;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  transition: background var(--transition);
  cursor: default;
  position: relative;
}

.skill-card::after {
  content: '';
  position: absolute;
  inset: 0;
  border: 1px solid transparent;
  border-radius: 0;
  transition: border-color var(--transition);
  pointer-events: none;
}

.skill-card:hover {
  background: #181818;
}

.skill-card:hover::after {
  border-color: rgba(0,255,136,0.12);
}

.skill-icon {
  width: 28px;
  height: 28px;
  color: var(--accent);
  opacity: 0.8;
}

.skill-icon svg {
  width: 100%;
  height: 100%;
}

.skill-title {
  font-size: 0.95rem;
  font-weight: 700;
  color: var(--text);
  letter-spacing: 0.02em;
}

.skill-desc {
  font-size: 0.75rem;
  color: var(--muted-hi);
  line-height: 1.7;
}

.skill-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
  margin-top: 0.25rem;
}

.skill-tags span {
  font-size: 0.65rem;
  color: var(--muted);
  border: 1px solid var(--border-hi);
  border-radius: 3px;
  padding: 0.15em 0.5em;
  letter-spacing: 0.04em;
  transition: color var(--transition), border-color var(--transition);
}

.skill-card:hover .skill-tags span {
  color: var(--accent);
  border-color: rgba(0,255,136,0.25);
}

.contact-wrap {
  display: grid;
  grid-template-columns: 1fr 2fr;
  gap: 3rem;
  align-items: start;
}

.contact-heading {
  font-size: 1.4rem;
  font-weight: 700;
  color: var(--text);
  line-height: 1.2;
  letter-spacing: -0.02em;
}

.contact-sub {
  font-size: 0.78rem;
  color: var(--muted-hi);
  margin-top: 0.6rem;
  line-height: 1.6;
}

.contact-form {
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
}

.form-group label {
  font-size: 0.72rem;
  color: var(--muted);
  letter-spacing: 0.06em;
}

.form-group input,
.form-group textarea {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  color: var(--text);
  font-family: var(--font);
  font-size: 0.82rem;
  padding: 0.7rem 0.9rem;
  transition:
    border-color var(--transition),
    box-shadow var(--transition);
  resize: none;
  outline: none;
  width: 100%;
}

.form-group input::placeholder,
.form-group textarea::placeholder {
  color: var(--muted);
}

.form-group input:focus,
.form-group textarea:focus {
  border-color: rgba(0,255,136,0.4);
  box-shadow: 0 0 0 3px rgba(0,255,136,0.06);
}

.form-footer {
  display: flex;
  align-items: center;
  gap: 1rem;
  margin-top: 0.25rem;
}

button[type="submit"] {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  background: var(--accent);
  color: #000;
  border: none;
  border-radius: var(--radius);
  padding: 0.65rem 1.4rem;
  font-family: var(--font);
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  cursor: pointer;
  transition:
    background var(--transition),
    transform var(--transition),
    box-shadow var(--transition);
  white-space: nowrap;
}

button[type="submit"]:hover {
  background: var(--accent-dim);
  box-shadow: 0 0 20px rgba(0,255,136,0.25);
  transform: translateY(-1px);
}

button[type="submit"]:active {
  transform: translateY(0);
}

button[type="submit"]:disabled {
  opacity: 0.5;
  cursor: not-allowed;
  transform: none;
}

.btn-arrow {
  font-size: 1rem;
  transition: transform var(--transition);
}

button[type="submit"]:hover .btn-arrow {
  transform: translateX(3px);
}

.form-status {
  font-size: 0.75rem;
  color: var(--muted-hi);
  min-height: 1.2em;
  transition: color var(--transition);
}

.form-status.success { color: var(--accent); }
.form-status.error   { color: var(--red); }

footer {
  border-top: 1px solid var(--border);
  padding: 2rem;
  text-align: center;
}

.footer-text {
  font-size: 0.72rem;
  color: var(--muted);
  letter-spacing: 0.06em;
}

#site {
  opacity: 0;
  transition: opacity 0.8s ease;
}

#site.visible {
  opacity: 1;
}

.reveal {
  opacity: 0;
  transform: translateY(18px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

.reveal.in-view {
  opacity: 1;
  transform: translateY(0);
}

.hero-name {
  text-shadow: 0 0 80px rgba(0,255,136,0.06);
}

.terminal-card:hover {
  box-shadow:
    0 0 0 1px rgba(0,255,136,0.08),
    0 30px 80px rgba(0,0,0,0.6);
}

@media (max-width: 700px) {
  section {
    padding: 5rem 1.25rem;
  }

  #nav {
    padding: 1rem 1.25rem;
  }

  .nav-links {
    gap: 1.25rem;
  }

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

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

  .contact-intro {
    border-bottom: 1px solid var(--border);
    padding-bottom: 1.5rem;
  }

  .hero-scroll-hint {
    display: none;
  }

  .term-body {
    padding: 1.25rem;
  }
}

@media (max-width: 400px) {
  .hero-name {
    font-size: 3.5rem;
  }

  .skill-card {
    padding: 1.5rem 1.25rem;
  }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    transition-duration: 0.01ms !important;
  }
}