:root {
  --bg: #07070f;
  --bg-panel: #0d0d1a;
  --text: #d8e6ee;
  --muted: #7a8699;
  --cyan: #00f0ff;
  --magenta: #ff2bd6;
  --purple: #9d4dff;
  --border: #1d2236;
  --glow-cyan: 0 0 8px rgba(0, 240, 255, 0.55);
  --glow-magenta: 0 0 8px rgba(255, 43, 214, 0.55);
  --red: #ff2a44;
  --glow-red: 0 0 10px rgba(255, 42, 68, 0.65);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: "Share Tech Mono", monospace;
  background: var(--bg);
  color: var(--text);
  line-height: 1.65;
}

/* ---- background fx ---- */
.grid-bg {
  position: fixed;
  inset: 0;
  z-index: -2;
  background-image:
    linear-gradient(rgba(0, 240, 255, 0.05) 1px, transparent 1px),
    linear-gradient(90deg, rgba(0, 240, 255, 0.05) 1px, transparent 1px);
  background-size: 42px 42px;
  mask-image: radial-gradient(ellipse 90% 70% at 50% 0%, black 30%, transparent 80%);
}

.scanlines {
  position: fixed;
  inset: 0;
  z-index: 10;
  pointer-events: none;
  background: repeating-linear-gradient(
    to bottom,
    transparent 0 2px,
    rgba(0, 0, 0, 0.12) 2px 4px
  );
}

.container {
  max-width: 860px;
  margin: 0 auto;
  padding: 0 1.25rem;
}

a {
  color: var(--cyan);
}

/* ---- header ---- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 5;
  background: rgba(7, 7, 15, 0.85);
  backdrop-filter: blur(6px);
  border-bottom: 1px solid var(--border);
  padding: 0.8rem 0;
}

.site-header nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}

.brand {
  font-family: "Orbitron", sans-serif;
  font-weight: 900;
  color: var(--magenta);
  text-decoration: none;
  text-shadow: var(--glow-magenta);
  letter-spacing: 0.05em;
}

.nav-links {
  display: flex;
  flex-wrap: wrap;
  gap: 1.1rem;
  list-style: none;
  margin: 0;
  padding: 0;
}

.nav-links a {
  color: var(--muted);
  text-decoration: none;
  font-size: 0.92rem;
}

.nav-links a::before {
  content: "/";
  color: var(--magenta);
  margin-right: 2px;
}

.nav-links a:hover {
  color: var(--cyan);
  text-shadow: var(--glow-cyan);
}

.nav-links a.nav-hot {
  color: var(--magenta);
  text-shadow: var(--glow-magenta);
}

/* ---- hero ---- */
.hero {
  padding: 3.5rem 1.25rem 2.5rem;
}

.hero-pre {
  color: var(--magenta);
  margin: 0 0 0.6rem;
  letter-spacing: 0.08em;
}

.glitch {
  font-family: "Orbitron", sans-serif;
  font-weight: 900;
  font-size: clamp(2.1rem, 7vw, 4.2rem);
  margin: 0;
  color: var(--text);
  position: relative;
  letter-spacing: 0.04em;
  text-shadow:
    0 0 12px rgba(0, 240, 255, 0.35),
    0 0 40px rgba(157, 77, 255, 0.25);
}

.glitch::before,
.glitch::after {
  content: attr(data-text);
  position: absolute;
  inset: 0;
  overflow: hidden;
}

.glitch::before {
  color: var(--cyan);
  animation: glitch-shift 3.2s infinite linear alternate-reverse;
  clip-path: inset(20% 0 55% 0);
}

.glitch::after {
  color: var(--magenta);
  animation: glitch-shift 2.7s infinite linear alternate;
  clip-path: inset(60% 0 15% 0);
}

@keyframes glitch-shift {
  0%, 86% { transform: translate(0, 0); opacity: 0; }
  87% { transform: translate(-4px, 1px); opacity: 0.85; }
  90% { transform: translate(3px, -1px); opacity: 0.85; }
  93% { transform: translate(-2px, 2px); opacity: 0.7; }
  96% { transform: translate(4px, 0); opacity: 0.85; }
  100% { transform: translate(0, 0); opacity: 0; }
}

.tagline {
  font-size: 1.15rem;
  color: var(--cyan);
  min-height: 1.8em;
  margin: 1.2rem 0 0.4rem;
}

.prompt {
  color: var(--magenta);
}

.cursor {
  animation: blink 1s steps(1) infinite;
  color: var(--cyan);
}

@keyframes blink {
  50% { opacity: 0; }
}

.hero-sub {
  color: var(--muted);
  margin: 0 0 2rem;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
}

.btn {
  font-family: inherit;
  font-size: 0.95rem;
  text-decoration: none;
  padding: 0.65rem 1.4rem;
  border: 1px solid var(--cyan);
  color: var(--cyan);
  background: transparent;
  letter-spacing: 0.06em;
  transition: all 0.15s ease;
  clip-path: polygon(10px 0, 100% 0, 100% calc(100% - 10px), calc(100% - 10px) 100%, 0 100%, 0 10px);
}

.btn:hover {
  background: rgba(0, 240, 255, 0.12);
  box-shadow: var(--glow-cyan), inset 0 0 12px rgba(0, 240, 255, 0.15);
}

.btn-ghost {
  border-color: var(--magenta);
  color: var(--magenta);
}

.btn-ghost:hover {
  background: rgba(255, 43, 214, 0.1);
  box-shadow: var(--glow-magenta), inset 0 0 12px rgba(255, 43, 214, 0.15);
}

/* ---- sections ---- */
section {
  padding: 3rem 1.25rem;
}

h2 {
  font-family: "Orbitron", sans-serif;
  font-size: 1.35rem;
  letter-spacing: 0.08em;
  margin: 0 0 1.6rem;
  color: var(--text);
}

h2::after {
  content: "";
  display: block;
  height: 1px;
  margin-top: 0.6rem;
  background: linear-gradient(90deg, var(--cyan), var(--magenta), transparent 70%);
}

.h-num {
  color: var(--magenta);
  margin-right: 0.6rem;
}

.h-num::after {
  content: " /";
  color: var(--muted);
}

/* ---- terminal panels ---- */
.terminal {
  background: var(--bg-panel);
  border: 1px solid var(--border);
  border-radius: 6px;
  overflow: hidden;
  box-shadow: 0 0 24px rgba(0, 240, 255, 0.06);
}

.terminal-bar {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 0.5rem 0.9rem;
  background: #11121f;
  border-bottom: 1px solid var(--border);
}

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

.dot:nth-child(1) { background: var(--magenta); }
.dot:nth-child(2) { background: var(--purple); }
.dot:nth-child(3) { background: var(--cyan); }

.terminal-title {
  margin-left: 0.6rem;
  color: var(--muted);
  font-size: 0.85rem;
}

.terminal-body {
  padding: 1.1rem 1.3rem;
}

.terminal-body p {
  margin: 0 0 0.9rem;
}

.terminal-body p:last-child {
  margin-bottom: 0;
}

/* ---- lab callout (hero) ---- */
.lab-callout {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 1.1rem;
  margin-top: 2.4rem;
  padding: 1.1rem 1.3rem;
  border: 2px solid var(--red);
  color: var(--red);
  text-decoration: none;
  text-align: center;
  font-family: "Orbitron", sans-serif;
  font-weight: 700;
  font-size: clamp(0.85rem, 2.4vw, 1.15rem);
  letter-spacing: 0.06em;
  text-shadow: var(--glow-red);
  clip-path: polygon(14px 0, 100% 0, 100% calc(100% - 14px), calc(100% - 14px) 100%, 0 100%, 0 14px);
  animation: callout-pulse 1.7s ease-in-out infinite;
}

.lab-callout:hover {
  background: rgba(255, 42, 68, 0.12);
}

.lab-callout .callout-text small {
  display: block;
  font-family: "Share Tech Mono", monospace;
  font-weight: 400;
  font-size: 0.72em;
  letter-spacing: 0.1em;
  margin-top: 0.3rem;
  color: var(--text);
  text-shadow: none;
}

.callout-arrows {
  white-space: nowrap;
  font-size: 1.25em;
  animation: arrow-bounce 0.9s ease-in-out infinite;
}

@keyframes arrow-bounce {
  0%, 100% { transform: translateY(-4px); }
  50% { transform: translateY(5px); }
}

@keyframes callout-pulse {
  0%, 100% { box-shadow: 0 0 8px rgba(255, 42, 68, 0.35), inset 0 0 10px rgba(255, 42, 68, 0.08); }
  50% { box-shadow: 0 0 26px rgba(255, 42, 68, 0.75), inset 0 0 22px rgba(255, 42, 68, 0.18); }
}

.red-arrows {
  display: inline-block;
  color: var(--red);
  text-shadow: var(--glow-red);
  animation: arrow-nudge 1s ease-in-out infinite;
}

@keyframes arrow-nudge {
  0%, 100% { transform: translateX(0); }
  50% { transform: translateX(7px); }
}

/* ---- pdf lab ---- */
.hidden {
  display: none !important;
}

.uplink-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  font-family: "Share Tech Mono", monospace;
  font-size: 0.78rem;
  letter-spacing: 0.08em;
  color: var(--muted);
  border: 1px solid var(--border);
  padding: 0.15rem 0.6rem;
  margin-left: 0.8rem;
  vertical-align: middle;
}

.uplink-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--muted);
}

.uplink-badge.online {
  color: var(--cyan);
  border-color: var(--cyan);
}

.uplink-badge.online .uplink-dot {
  background: var(--cyan);
  box-shadow: var(--glow-cyan);
  animation: blink 2s steps(1) infinite;
}

.uplink-badge.offline {
  color: var(--magenta);
  border-color: var(--magenta);
}

.uplink-badge.offline .uplink-dot {
  background: var(--magenta);
  box-shadow: var(--glow-magenta);
}

.lab-intro {
  margin: 0 0 0.4rem;
}

.lab-joke {
  color: var(--magenta);
  text-shadow: var(--glow-magenta);
  margin: 0 0 1.4rem;
  letter-spacing: 0.04em;
}

.lab-terminal {
  border-color: var(--magenta);
  box-shadow: 0 0 28px rgba(255, 43, 214, 0.12), 0 0 60px rgba(0, 240, 255, 0.06);
}

.lab-offline p {
  color: var(--magenta);
  margin: 0 0 1rem;
}

.dropzone {
  display: block;
  border: 1px dashed var(--cyan);
  padding: 1.6rem 1rem;
  text-align: center;
  color: var(--cyan);
  cursor: pointer;
  transition: all 0.15s ease;
  margin-bottom: 1rem;
}

.dropzone:hover,
.dropzone.dragover {
  background: rgba(0, 240, 255, 0.07);
  box-shadow: inset 0 0 18px rgba(0, 240, 255, 0.12);
}

.dropzone.indexed {
  border-style: solid;
  color: var(--text);
}

.dropzone.busy {
  pointer-events: none;
  opacity: 0.6;
}

.ask-form {
  display: flex;
  align-items: center;
  gap: 0.7rem;
  margin-bottom: 1.2rem;
}

.ask-form input[type="text"] {
  flex: 1;
  font-family: inherit;
  font-size: 0.95rem;
  color: var(--text);
  background: #0a0a16;
  border: 1px solid var(--border);
  padding: 0.6rem 0.8rem;
  outline: none;
  min-width: 0;
}

.ask-form input[type="text"]:focus {
  border-color: var(--cyan);
  box-shadow: var(--glow-cyan);
}

.ask-form input[type="text"]:disabled,
.ask-form .btn:disabled {
  opacity: 0.55;
  cursor: not-allowed;
  box-shadow: none;
}

.ask-form .btn {
  border: 1px solid var(--cyan);
  color: var(--cyan);
  background: transparent;
  cursor: pointer;
  padding: 0.6rem 1.2rem;
  font-size: 0.95rem;
  line-height: 1.6;
}

.lab-log {
  display: flex;
  flex-direction: column;
  gap: 0.7rem;
}

.lab-log .log-q {
  color: var(--cyan);
  margin: 0;
}

.lab-log .log-a {
  color: var(--text);
  margin: 0;
  white-space: pre-wrap;
  border-left: 2px solid var(--cyan);
  padding-left: 0.8rem;
}

.lab-log .log-info {
  color: var(--muted);
  margin: 0;
}

.lab-log .log-err {
  color: var(--magenta);
  margin: 0;
}

.lab-log .log-busy {
  color: var(--purple);
  margin: 0;
  animation: blink 1.1s steps(1) infinite;
}

.lab-log details {
  border: 1px solid var(--border);
  padding: 0.5rem 0.8rem;
}

.lab-log summary {
  cursor: pointer;
  color: var(--muted);
  font-size: 0.85rem;
}

.lab-log .source-chunk {
  color: var(--muted);
  font-size: 0.82rem;
  margin: 0.6rem 0 0;
  white-space: pre-wrap;
  border-left: 2px solid var(--purple);
  padding-left: 0.7rem;
}

/* ---- skills ---- */
.skill-groups {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 1.2rem;
}

.skill-group h3 {
  font-size: 0.95rem;
  color: var(--magenta);
  letter-spacing: 0.1em;
  margin: 0 0 0.7rem;
}

.skill-group h3::before {
  content: ":: ";
  color: var(--muted);
}

.chips {
  display: flex;
  flex-wrap: wrap;
  gap: 0.45rem;
  list-style: none;
  margin: 0;
  padding: 0;
}

.chips li {
  font-size: 0.82rem;
  padding: 0.2rem 0.6rem;
  border: 1px solid var(--border);
  color: var(--text);
  background: var(--bg-panel);
  transition: all 0.15s ease;
}

.chips li:hover {
  border-color: var(--cyan);
  color: var(--cyan);
  box-shadow: var(--glow-cyan);
}

/* ---- projects ---- */
.project-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 1.2rem;
}

.project-card {
  background: var(--bg-panel);
  border: 1px solid var(--border);
  border-top: 2px solid var(--cyan);
  padding: 1.3rem;
  transition: all 0.18s ease;
  position: relative;
}

.project-card:nth-child(even) {
  border-top-color: var(--magenta);
}

.project-card:hover {
  transform: translateY(-3px);
  border-color: var(--cyan);
  box-shadow: 0 0 18px rgba(0, 240, 255, 0.18);
}

.project-card:nth-child(even):hover {
  border-color: var(--magenta);
  box-shadow: 0 0 18px rgba(255, 43, 214, 0.18);
}

.card-meta {
  font-size: 0.78rem;
  color: var(--muted);
  letter-spacing: 0.08em;
  margin: 0 0 0.5rem;
  text-transform: uppercase;
}

.project-card h3 {
  font-family: "Orbitron", sans-serif;
  font-size: 1.05rem;
  margin: 0 0 0.7rem;
  color: var(--text);
}

.project-card p {
  margin: 0 0 0.8rem;
  color: var(--muted);
  font-size: 0.92rem;
}

.project-card .tech {
  color: var(--cyan);
  font-size: 0.8rem;
  margin: 0;
}

/* ---- timeline ---- */
.timeline {
  list-style: none;
  margin: 0;
  padding: 0;
  border-left: 1px solid var(--border);
}

.timeline li {
  position: relative;
  padding: 0 0 1.8rem 1.6rem;
}

.timeline li::before {
  content: "";
  position: absolute;
  left: -5px;
  top: 0.45em;
  width: 9px;
  height: 9px;
  background: var(--cyan);
  box-shadow: var(--glow-cyan);
  transform: rotate(45deg);
}

.timeline li:nth-child(even)::before {
  background: var(--magenta);
  box-shadow: var(--glow-magenta);
}

.timeline .time {
  color: var(--magenta);
  font-size: 0.85rem;
  letter-spacing: 0.08em;
}

.timeline h3 {
  font-size: 1rem;
  margin: 0.25rem 0 0.4rem;
  color: var(--text);
}

.timeline p {
  margin: 0;
  color: var(--muted);
  font-size: 0.92rem;
}

/* ---- contact ---- */
.contact-links {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.contact-links a {
  color: var(--cyan);
  text-decoration: none;
}

.contact-links a::before {
  content: "→ ";
  color: var(--magenta);
}

.contact-links a:hover {
  text-shadow: var(--glow-cyan);
  text-decoration: underline;
}

/* ---- footer ---- */
.site-footer {
  border-top: 1px solid var(--border);
  margin-top: 3rem;
  padding: 1.6rem 0;
  color: var(--muted);
  font-size: 0.85rem;
}

.footer-blink {
  color: var(--cyan);
  animation: blink 1.2s steps(1) infinite;
}

@media (prefers-reduced-motion: reduce) {
  .glitch::before,
  .glitch::after {
    animation: none;
    opacity: 0;
  }
  .cursor, .footer-blink,
  .lab-callout, .callout-arrows, .red-arrows,
  .uplink-badge.online .uplink-dot, .lab-log .log-busy {
    animation: none;
  }
  html {
    scroll-behavior: auto;
  }
}