/* ══════════════════════════════════════════════════════
   CYBERPUNK BASE
══════════════════════════════════════════════════════ */
:root {
  --cyan:    #00f5ff;
  --pink:    #ff00a0;
  --purple:  #9b00ff;
  --green:   #00ff88;
  --yellow:  #ffe600;
  --red:     #ff3b3b;
  --bg:      #020610;
  --bg2:     #050d1a;
  --bg3:     #080f20;
  --panel:   rgba(0,245,255,0.04);
  --border:  rgba(0,245,255,0.18);
  --borderb: rgba(0,245,255,0.35);
  --text:    #c0e8ff;
  --dim:     #4a7a9b;
  --mono:    'JetBrains Mono', monospace;
  --orb:     'Orbitron', sans-serif;
  --raj:     'Rajdhani', sans-serif;
}
*,*::before,*::after { margin:0; padding:0; box-sizing:border-box; }
html { scroll-behavior: smooth; }
body {
  background: var(--bg);
  background-image:
    radial-gradient(ellipse 140% 60% at 50% 0%, rgba(0,60,140,0.4) 0%, transparent 60%),
    radial-gradient(ellipse 80% 40% at 80% 80%, rgba(155,0,255,0.18) 0%, transparent 55%),
    radial-gradient(ellipse 60% 30% at 15% 70%, rgba(0,245,255,0.1) 0%, transparent 50%);
  color: var(--text);
  font-family: var(--raj);
  font-size: 15px;
  line-height: 1.6;
  overflow-x: hidden;
}
/* vignette */
body::after {
  content: '';
  position: fixed;
  inset: 0;
  background: radial-gradient(ellipse 100% 100% at 50% 50%, transparent 50%, rgba(1,2,8,0.7) 100%);
  pointer-events: none;
  z-index: 1;
}
::-webkit-scrollbar { width: 4px; }
::-webkit-scrollbar-track { background: var(--bg); }
::-webkit-scrollbar-thumb { background: var(--cyan); border-radius: 2px; }
a { color: inherit; text-decoration: none; }
input, button, select { font-family: inherit; }
select option { background: var(--bg2); }

/* ── SCANLINE OVERLAY ── */
body::before {
  content: '';
  position: fixed;
  top: 0; left: 0; right: 0; bottom: 0;
  background: repeating-linear-gradient(
    0deg,
    transparent,
    transparent 2px,
    rgba(0,0,0,0.04) 2px,
    rgba(0,0,0,0.04) 4px
  );
  pointer-events: none;
  z-index: 9999;
  animation: scanmove 8s linear infinite;
}
@keyframes scanmove {
  0% { background-position: 0 0; }
  100% { background-position: 0 100px; }
}

/* ── PAGES ── */
.page { display: none; min-height: 100vh; }
.page.act { display: block; animation: fadeIn 0.4s ease; }
@keyframes fadeIn { from { opacity:0; transform: translateY(10px); } to { opacity:1; transform: translateY(0); } }

/* ── NEON TEXT ── */
.neon-cyan  { color: var(--cyan);   text-shadow: 0 0 10px var(--cyan),   0 0 20px var(--cyan),   0 0 40px var(--cyan); }
.neon-pink  { color: var(--pink);   text-shadow: 0 0 10px var(--pink),   0 0 20px var(--pink),   0 0 40px var(--pink); }
.neon-green { color: var(--green);  text-shadow: 0 0 10px var(--green),  0 0 20px var(--green); }
.neon-purple{ color: var(--purple); text-shadow: 0 0 10px var(--purple), 0 0 20px var(--purple); }

/* ── GLITCH EFFECT ── */
@keyframes glitch1 {
  0%,100% { clip-path: inset(0 0 95% 0); transform: translate(-3px, 0); }
  20%      { clip-path: inset(40% 0 40% 0); transform: translate(3px, 0); }
  40%      { clip-path: inset(80% 0 5% 0); transform: translate(-2px, 0); }
  60%      { clip-path: inset(20% 0 70% 0); transform: translate(2px, 0); }
  80%      { clip-path: inset(60% 0 20% 0); transform: translate(-3px, 0); }
}
@keyframes glitch2 {
  0%,100% { clip-path: inset(5% 0 90% 0); transform: translate(3px, 0); color: var(--pink); }
  33%     { clip-path: inset(50% 0 30% 0); transform: translate(-3px, 0); }
  66%     { clip-path: inset(25% 0 65% 0); transform: translate(2px, 0); }
}
.glitch-wrap { position: relative; display: inline-block; }
.glitch-wrap::before,
.glitch-wrap::after {
  content: attr(data-text);
  position: absolute;
  top: 0; left: 0;
  width: 100%; height: 100%;
  font-family: inherit;
  font-weight: inherit;
  font-size: inherit;
  color: var(--cyan);
}
.glitch-wrap::before {
  animation: glitch1 4s infinite steps(1);
  color: var(--cyan);
}
.glitch-wrap::after {
  animation: glitch2 4.5s infinite steps(1);
  color: var(--pink);
}
.glitch-active .glitch-wrap::before { animation: glitch1 0.3s infinite steps(1); }
.glitch-active .glitch-wrap::after  { animation: glitch2 0.35s infinite steps(1); }

/* ── CYBER BUTTON ── */
.cyber-btn {
  position: relative;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.65rem 1.8rem;
  font-family: var(--orb);
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  cursor: pointer;
  border: 1px solid var(--cyan);
  background: rgba(0,245,255,0.05);
  color: var(--cyan);
  clip-path: polygon(8px 0%, 100% 0%, calc(100% - 8px) 100%, 0% 100%);
  transition: all 0.2s;
  overflow: hidden;
}
/* gradient fill on hover */
.cyber-btn::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, var(--cyan) 0%, var(--purple) 100%);
  opacity: 0;
  transition: opacity 0.2s;
  z-index: 0;
}
/* sweep shimmer */
.cyber-btn::after {
  content: '';
  position: absolute;
  top: 0; left: 0;
  width: 50%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255,255,255,0.18), transparent);
  transform: translateX(-150%);
  transition: transform 0s;
  z-index: 1;
}
.cyber-btn:hover::after { transform: translateX(300%); transition: transform 0.45s ease; }
.cyber-btn:hover::before { opacity: 0.15; }
.cyber-btn:hover {
  border-color: var(--cyan);
  box-shadow: 0 0 28px var(--cyan), 0 0 60px rgba(0,245,255,0.25), inset 0 0 20px rgba(0,245,255,0.1);
  color: #fff;
  transform: translateY(-2px);
}
.cyber-btn.pink  { border-color: var(--pink); color: var(--pink); }
.cyber-btn.pink:hover { box-shadow: 0 0 20px var(--pink), inset 0 0 20px rgba(255,0,160,0.1); }
.cyber-btn.green { border-color: var(--green); color: var(--green); }
.cyber-btn.green:hover { box-shadow: 0 0 20px var(--green), inset 0 0 20px rgba(0,255,136,0.1); }
.cyber-btn.purple{ border-color: var(--purple); color: var(--purple); }
.cyber-btn.purple:hover { box-shadow: 0 0 20px var(--purple); }
.cyber-btn:disabled { opacity: 0.35; cursor: default; transform: none !important; }
.cyber-btn span.btn-txt { position: relative; z-index: 1; }

/* ── CYBER PANEL ── */
.cyber-panel {
  background: rgba(5,13,26,0.75);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border: 1px solid var(--border);
  box-shadow: inset 0 1px 0 rgba(0,245,255,0.08), 0 4px 32px rgba(0,0,0,0.4);
  position: relative;
  overflow: hidden;
}
.cyber-panel::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 2px;
  background: linear-gradient(90deg, transparent, var(--cyan), transparent);
  animation: scanH 3s ease-in-out infinite;
}
@keyframes scanH {
  0%,100% { opacity: 0.3; }
  50% { opacity: 1; }
}
.cyber-panel.pink-panel::before { background: linear-gradient(90deg, transparent, var(--pink), transparent); }
.cyber-panel.green-panel::before { background: linear-gradient(90deg, transparent, var(--green), transparent); }
.cyber-panel.purple-panel::before { background: linear-gradient(90deg, transparent, var(--purple), transparent); }

/* ── PANEL HEADER ── */
.panel-hdr {
  padding: 0.6rem 1rem;
  background: rgba(0,245,255,0.06);
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: center;
  gap: 0.5rem;
}
.panel-hdr .dots { display: flex; gap: 5px; }
.panel-hdr .dot  { width: 8px; height: 8px; border-radius: 50%; }
.panel-hdr .dr   { background: #ff5f57; }
.panel-hdr .dy   { background: #ffbd2e; }
.panel-hdr .dg   { background: #28ca41; }
.panel-hdr .ttl  {
  font-family: var(--mono);
  font-size: 0.68rem;
  color: var(--cyan);
  letter-spacing: 0.15em;
  text-transform: uppercase;
  flex: 1;
  text-align: center;
}

/* ── INPUT STYLES ── */
.cyber-input {
  background: rgba(0,245,255,0.04);
  border: 1px solid var(--border);
  color: var(--text);
  padding: 0.4rem 0.7rem;
  font-family: var(--mono);
  font-size: 0.78rem;
  outline: none;
  transition: border-color 0.2s, box-shadow 0.2s;
}
.cyber-input:focus {
  border-color: var(--cyan);
  box-shadow: 0 0 8px rgba(0,245,255,0.3);
}
.cyber-select {
  background: var(--bg2);
  border: 1px solid var(--border);
  color: var(--cyan);
  padding: 0.35rem 0.7rem;
  font-family: var(--mono);
  font-size: 0.75rem;
  outline: none;
  cursor: pointer;
}
.cyber-select:focus { border-color: var(--cyan); }

/* ── SLIDER ── */
.cyber-slider {
  -webkit-appearance: none;
  appearance: none;
  width: 100%;
  height: 3px;
  background: linear-gradient(90deg, var(--cyan), var(--purple));
  outline: none;
  border-radius: 2px;
}
.cyber-slider::-webkit-slider-thumb {
  -webkit-appearance: none;
  width: 14px; height: 14px;
  border-radius: 50%;
  background: var(--cyan);
  box-shadow: 0 0 8px var(--cyan);
  cursor: pointer;
}
.cyber-range-label {
  font-family: var(--mono);
  font-size: 0.7rem;
  color: var(--dim);
  display: flex;
  justify-content: space-between;
  margin-top: 0.2rem;
}

/* ── TERMINAL ── */
.term-body {
  background: #020408;
  font-family: var(--mono);
  font-size: 0.78rem;
  line-height: 1.65;
  padding: 0.85rem;
  overflow-y: auto;
  min-height: 100px;
  max-height: 400px;
}
.term-out { white-space: pre-wrap; word-break: break-all; }
.l-c { color: var(--cyan); }
.l-g { color: var(--green); }
.l-p { color: var(--pink); }
.l-y { color: var(--yellow); }
.l-d { color: var(--dim); }
.l-r { color: var(--red); }
.l-w { color: #fff; }
.l-o { color: #ff8c00; }
.term-in-row {
  display: flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.4rem 0.85rem;
  border-top: 1px solid var(--border);
  background: #020408;
}
.term-prompt { font-family: var(--mono); font-size: 0.78rem; color: var(--green); white-space: nowrap; }
.term-in {
  flex: 1;
  background: none;
  border: none;
  outline: none;
  font-family: var(--mono);
  font-size: 0.78rem;
  color: #fff;
  caret-color: var(--cyan);
}
.run-btn {
  background: var(--cyan);
  color: var(--bg);
  border: none;
  padding: 0.3rem 0.9rem;
  font-family: var(--orb);
  font-size: 0.65rem;
  font-weight: 700;
  cursor: pointer;
  letter-spacing: 0.08em;
  transition: background 0.15s;
  clip-path: polygon(4px 0%, 100% 0%, calc(100%-4px) 100%, 0% 100%);
}
.run-btn:hover { background: var(--green); }
.run-btn:disabled { background: #1a3040; color: var(--dim); cursor: default; }
.run-btn.pink { background: var(--pink); }
.run-btn.pink:hover { background: var(--purple); }

/* ── CODE VIEWER ── */
.code-view { background: var(--bg2); border: 1px solid var(--border); }
.cv-hdr { display: flex; align-items: center; gap: 0; padding: 0.4rem 0.75rem; background: rgba(0,245,255,0.05); border-bottom: 1px solid var(--border); }
.cv-tabs { display: flex; flex: 1; overflow-x: auto; gap: 0; }
.cv-tab { font-family: var(--mono); font-size: 0.66rem; padding: 0.28rem 0.8rem; cursor: pointer; color: var(--dim); border: none; background: none; border-bottom: 2px solid transparent; transition: all 0.12s; white-space: nowrap; }
.cv-tab.act { color: var(--cyan); border-bottom-color: var(--cyan); background: rgba(0,245,255,0.06); }
.cv-tab:hover:not(.act) { color: #fff; background: rgba(255,255,255,0.03); }
.cv-cpy { font-family: var(--mono); font-size: 0.62rem; padding: 0.22rem 0.6rem; background: none; border: 1px solid var(--border); color: var(--dim); cursor: pointer; transition: all 0.15s; white-space: nowrap; }
.cv-cpy:hover { border-color: var(--cyan); color: var(--cyan); }
.cv-body { max-height: 500px; overflow-y: auto; }
.cv-pane { display: none; } .cv-pane.act { display: block; }
pre.cpre { margin: 0; padding: 0.75rem 0; font-family: var(--mono); font-size: 0.74rem; line-height: 1.7; overflow-x: auto; }
.cl { display: flex; min-height: 1.7em; }
.ln { width: 2.5rem; text-align: right; padding-right: 0.65rem; color: #1e3a50; user-select: none; flex-shrink: 0; font-size: 0.67rem; padding-top: 0.1em; }
.lc { flex: 1; padding-right: 0.8rem; }
.kw { color: #c792ea; } .fn { color: #82aaff; } .str { color: #c3e88d; }
.num { color: #f78c6c; } .cmt { color: #3d5468; } .cls { color: #ffcb6b; }

/* ── TOGGLE SWITCH ── */
.toggle-wrap { display: flex; align-items: center; gap: 0.6rem; }
.toggle { position: relative; width: 44px; height: 22px; flex-shrink: 0; }
.toggle input { opacity: 0; width: 0; height: 0; }
.toggle-slider {
  position: absolute;
  inset: 0;
  background: rgba(0,245,255,0.1);
  border: 1px solid var(--border);
  cursor: pointer;
  transition: all 0.3s;
  clip-path: polygon(3px 0%, 100% 0%, calc(100%-3px) 100%, 0% 100%);
}
.toggle-slider::before {
  content: '';
  position: absolute;
  left: 3px;
  top: 50%;
  transform: translateY(-50%);
  width: 14px; height: 14px;
  background: var(--dim);
  transition: all 0.3s;
}
.toggle input:checked + .toggle-slider {
  background: rgba(0,245,255,0.2);
  border-color: var(--cyan);
  box-shadow: 0 0 8px rgba(0,245,255,0.4);
}
.toggle input:checked + .toggle-slider::before {
  left: calc(100% - 17px);
  background: var(--cyan);
  box-shadow: 0 0 8px var(--cyan);
}
.toggle-label { font-family: var(--raj); font-size: 0.82rem; color: var(--text); }

/* ── TOP NAV ── */
#nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 200;
  background: rgba(1,2,8,0.88);
  backdrop-filter: blur(24px);
  border-bottom: 1px solid transparent;
  height: 52px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 2rem;
}
#nav::after {
  content: '';
  position: absolute;
  bottom: 0; left: 0; right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--cyan) 30%, var(--purple) 70%, transparent);
  opacity: 0.8;
}
.nav-logo {
  font-family: var(--orb);
  font-weight: 900;
  font-size: 0.85rem;
  color: var(--cyan);
  cursor: pointer;
  letter-spacing: 0.1em;
  text-shadow: 0 0 15px var(--cyan);
}
.nav-links { display: flex; gap: 0; list-style: none; }
.nav-links a {
  font-family: var(--orb);
  font-size: 0.65rem;
  color: var(--dim);
  padding: 0.4rem 1rem;
  letter-spacing: 0.1em;
  border-bottom: 2px solid transparent;
  transition: all 0.15s;
  cursor: pointer;
  display: block;
}
.nav-links a:hover, .nav-links a.act {
  color: var(--cyan);
  border-bottom-color: var(--cyan);
  text-shadow: 0 0 8px var(--cyan);
}

/* ══════════════════════════════════════════════════════
   MAIN PAGE
══════════════════════════════════════════════════════ */
#page-main {
  position: relative;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  padding-top: 52px;
}

/* Animated grid floor */
.grid-floor {
  position: absolute;
  bottom: 0; left: 0; right: 0;
  height: 65vh;
  perspective: 1000px;
  overflow: hidden;
}
.grid-floor-inner {
  position: absolute;
  bottom: 0; left: -60%; right: -60%;
  height: 220%;
  transform: rotateX(72deg);
  transform-origin: bottom center;
  background-image:
    linear-gradient(rgba(0,245,255,0.35) 1px, transparent 1px),
    linear-gradient(90deg, rgba(0,245,255,0.35) 1px, transparent 1px);
  background-size: 70px 70px;
  animation: gridScroll 6s linear infinite;
  -webkit-mask-image: linear-gradient(to top, rgba(0,0,0,0.9) 0%, rgba(0,0,0,0.4) 50%, transparent 100%);
  mask-image: linear-gradient(to top, rgba(0,0,0,0.9) 0%, rgba(0,0,0,0.4) 50%, transparent 100%);
}
@keyframes gridScroll {
  from { background-position: 0 0; }
  to   { background-position: 0 70px; }
}

/* Tunnel glow */
.tunnel-glow {
  position: absolute;
  top: 0; left: 50%;
  transform: translateX(-50%);
  width: 6px;
  height: 75vh;
  background: linear-gradient(180deg, var(--cyan) 0%, rgba(0,245,255,0.3) 60%, transparent 100%);
  filter: blur(10px);
  animation: tunnelPulse 2s ease-in-out infinite;
}
/* central beam halo */
.tunnel-glow::after {
  content: '';
  position: absolute;
  top: 0; left: 50%;
  transform: translateX(-50%);
  width: 80px;
  height: 100%;
  background: linear-gradient(180deg, rgba(0,245,255,0.25) 0%, rgba(155,0,255,0.15) 50%, transparent 100%);
  filter: blur(18px);
}
@keyframes tunnelPulse {
  0%,100% { opacity: 0.7; }
  50% { opacity: 1; box-shadow: 0 0 40px var(--cyan), 0 0 80px rgba(0,245,255,0.3); }
}

/* Ambient glow blobs */
.glow-blob {
  position: absolute;
  border-radius: 50%;
  filter: blur(80px);
  pointer-events: none;
  animation: blobFloat 6s ease-in-out infinite;
}
.glow-blob.b1 { width: 500px; height: 500px; background: rgba(155,0,255,0.32); top: 5%; left: 3%; animation-delay: 0s; }
.glow-blob.b2 { width: 380px; height: 380px; background: rgba(0,245,255,0.25); top: 15%; right: 3%; animation-delay: 2s; }
.glow-blob.b3 { width: 600px; height: 280px; background: rgba(255,0,160,0.2); bottom: 15%; left: 15%; animation-delay: 4s; }
@keyframes blobFloat {
  0%,100% { transform: translateY(0) scale(1); }
  50%     { transform: translateY(-20px) scale(1.05); }
}

/* Floating glass cubes */
.crystal {
  position: absolute;
  border-radius: 6px;
  backdrop-filter: blur(6px);
  -webkit-backdrop-filter: blur(6px);
  animation: crystalFloat 5s ease-in-out infinite, crystalSpin 18s linear infinite;
}
/* inner border shimmer */
.crystal::before {
  content: '';
  position: absolute;
  inset: 3px;
  border: 1px solid rgba(255,255,255,0.12);
  border-radius: 4px;
}
/* center glow dot */
.crystal::after {
  content: '';
  position: absolute;
  top: 50%; left: 50%;
  transform: translate(-50%,-50%);
  width: 8px; height: 8px;
  border-radius: 50%;
  filter: blur(3px);
}
.crystal.c1 {
  width: 70px; height: 70px;
  top: 15%; left: 8%;
  background: rgba(0,245,255,0.07);
  border: 1px solid rgba(0,245,255,0.45);
  box-shadow: 0 0 20px rgba(0,245,255,0.2), inset 0 0 20px rgba(0,245,255,0.05);
  animation-delay: 0s;
}
.crystal.c1::after { background: var(--cyan); box-shadow: 0 0 12px var(--cyan); }
.crystal.c2 {
  width: 52px; height: 52px;
  top: 30%; right: 10%;
  background: rgba(255,0,160,0.08);
  border: 1px solid rgba(255,0,160,0.5);
  box-shadow: 0 0 18px rgba(255,0,160,0.2), inset 0 0 18px rgba(255,0,160,0.05);
  animation-delay: 1.5s;
}
.crystal.c2::after { background: var(--pink); box-shadow: 0 0 12px var(--pink); }
.crystal.c3 {
  width: 42px; height: 42px;
  top: 62%; left: 14%;
  background: rgba(155,0,255,0.08);
  border: 1px solid rgba(155,0,255,0.5);
  box-shadow: 0 0 16px rgba(155,0,255,0.2), inset 0 0 16px rgba(155,0,255,0.05);
  animation-delay: 3s;
}
.crystal.c3::after { background: var(--purple); box-shadow: 0 0 10px var(--purple); }
.crystal.c4 {
  width: 60px; height: 60px;
  top: 50%; right: 11%;
  background: rgba(0,255,136,0.07);
  border: 1px solid rgba(0,255,136,0.45);
  box-shadow: 0 0 20px rgba(0,255,136,0.18), inset 0 0 20px rgba(0,255,136,0.04);
  animation-delay: 2s;
}
.crystal.c4::after { background: var(--green); box-shadow: 0 0 10px var(--green); }
.crystal.c5 {
  width: 48px; height: 48px;
  top: 22%; left: 34%;
  background: rgba(255,230,0,0.06);
  border: 1px solid rgba(255,230,0,0.4);
  box-shadow: 0 0 16px rgba(255,230,0,0.15), inset 0 0 16px rgba(255,230,0,0.04);
  animation-delay: 0.8s;
}
.crystal.c5::after { background: var(--yellow); box-shadow: 0 0 10px var(--yellow); }
@keyframes crystalFloat {
  0%,100% { transform: translateY(0) rotate(0deg); }
  50%     { transform: translateY(-22px) rotate(8deg); }
}
@keyframes crystalSpin {
  0%   { filter: hue-rotate(0deg); }
  100% { filter: hue-rotate(360deg); }
}

/* Hero content */
.hero-content {
  position: relative;
  z-index: 10;
  text-align: center;
  padding: 2rem;
}
.hero-name {
  font-family: var(--orb);
  font-size: clamp(2.5rem, 8vw, 5.5rem);
  font-weight: 900;
  letter-spacing: -0.02em;
  line-height: 1;
  margin-bottom: 0.5rem;
  color: #fff;
}
.hero-name.hero-name-xs {
  font-size: clamp(1.1rem, 2.2vw, 1.5rem);
  letter-spacing: 0.15em;
  margin-bottom: 1.25rem;
}
.hero-name .line1 { display: block; color: var(--cyan); text-shadow: 0 0 20px var(--cyan), 0 0 60px var(--cyan), 0 0 120px rgba(0,245,255,0.4); }
.hero-name .line2 { display: block; color: var(--pink); text-shadow: 0 0 20px var(--pink), 0 0 60px var(--pink), 0 0 120px rgba(255,0,160,0.4); }
.hero-name-xs .line1, .hero-name-xs .line2 {
  display: inline;
  text-shadow: 0 0 10px currentColor;
}
.hero-name-xs .line2::before { content: " "; }
.hero-name-mono.hero-name-xs .line1,
.hero-name-mono.hero-name-xs .line2 {
  color: var(--dim);
  text-shadow: none;
}
.hero-desc {
  font-family: var(--raj);
  font-size: 1rem;
  color: var(--dim);
  max-width: 500px;
  margin: 0 auto 1.5rem;
  line-height: 1.7;
}
.hero-links {
  display: flex;
  gap: 1rem;
  justify-content: center;
  margin-bottom: 2.5rem;
}
.hero-links a {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 38px;
  height: 38px;
  color: var(--dim);
  border: 1px solid rgba(255,255,255,0.15);
  border-radius: 50%;
  transition: all 0.15s;
}
.hero-links a:hover {
  color: var(--cyan);
  border-color: var(--cyan);
  box-shadow: 0 0 15px rgba(0,245,255,0.2);
}

/* Project cards on main */
.project-cards {
  display: flex;
  gap: 1.5rem;
  flex-wrap: wrap;
  justify-content: center;
  position: relative;
  z-index: 10;
}
.proj-card-main {
  display: block;
  text-decoration: none;
  color: inherit;
  position: relative;
  width: 240px;
  padding: 0;
  cursor: pointer;
  transition: transform 0.3s;
}
.proj-card-main:hover { transform: translateY(-8px); }
.pcm-inner {
  background: linear-gradient(135deg, rgba(0,245,255,0.07), rgba(155,0,255,0.07));
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border: 1px solid var(--border);
  padding: 2rem 1.5rem;
  text-align: center;
  clip-path: polygon(12px 0%, 100% 0%, calc(100% - 12px) 100%, 0% 100%);
  transition: all 0.3s;
  position: relative;
  overflow: hidden;
}
/* top scan stripe */
.pcm-inner::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--cyan), transparent);
  opacity: 0.6;
}
/* gradient overlay shimmer */
.pcm-inner::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(255,255,255,0.04) 0%, transparent 60%);
  pointer-events: none;
}
.proj-card-main:hover .pcm-inner {
  border-color: var(--cyan);
  box-shadow: 0 0 40px rgba(0,245,255,0.25), 0 0 80px rgba(0,245,255,0.1), inset 0 0 30px rgba(0,245,255,0.06);
}
.pcm-inner.pink-card { border-color: rgba(255,0,160,0.35); }
.proj-card-main:hover .pcm-inner.pink-card {
  border-color: var(--pink);
  box-shadow: 0 0 30px rgba(255,0,160,0.2), inset 0 0 30px rgba(255,0,160,0.05);
}
.pcm-inner.purple-card { border-color: rgba(155,0,255,0.35); }
.proj-card-main:hover .pcm-inner.purple-card {
  border-color: var(--purple);
  box-shadow: 0 0 30px rgba(155,0,255,0.2), inset 0 0 30px rgba(155,0,255,0.05);
}
.pcm-inner.green-card { border-color: rgba(0,255,136,0.35); }
.proj-card-main:hover .pcm-inner.green-card {
  border-color: var(--green);
  box-shadow: 0 0 30px rgba(0,255,136,0.2), inset 0 0 30px rgba(0,255,136,0.05);
}
.pcm-num { font-family: var(--orb); font-size: 0.6rem; color: var(--dim); letter-spacing: 0.2em; margin-bottom: 1rem; }
.pcm-icon { font-size: 2.5rem; margin-bottom: 0.75rem; }
.pcm-title { font-family: var(--orb); font-size: 1.1rem; font-weight: 700; margin-bottom: 0.4rem; color: #fff; }
.pcm-title.cyan   { color: var(--cyan);   text-shadow: 0 0 15px var(--cyan); }
.pcm-title.pink   { color: var(--pink);   text-shadow: 0 0 15px var(--pink); }
.pcm-title.purple { color: var(--purple); text-shadow: 0 0 15px var(--purple); }
.pcm-title.green  { color: var(--green);  text-shadow: 0 0 15px var(--green); }
.pcm-desc { font-family: var(--raj); font-size: 0.82rem; color: var(--dim); line-height: 1.5; margin-bottom: 1.25rem; }
.pcm-enter {
  font-family: var(--orb);
  font-size: 0.65rem;
  letter-spacing: 0.15em;
  color: var(--dim);
  border: 1px solid var(--border);
  padding: 0.35rem 1rem;
  clip-path: polygon(4px 0%, 100% 0%, calc(100%-4px) 100%, 0% 100%);
  display: inline-block;
  transition: all 0.2s;
}
.proj-card-main:hover .pcm-enter { color: var(--cyan); border-color: var(--cyan); box-shadow: 0 0 10px rgba(0,245,255,0.3); }
.proj-card-main:hover .pcm-inner.pink-card .pcm-enter { color: var(--pink); border-color: var(--pink); box-shadow: 0 0 10px rgba(255,0,160,0.3); }
.proj-card-main:hover .pcm-inner.purple-card .pcm-enter { color: var(--purple); border-color: var(--purple); box-shadow: 0 0 10px rgba(155,0,255,0.3); }
.proj-card-main:hover .pcm-inner.green-card .pcm-enter { color: var(--green); border-color: var(--green); box-shadow: 0 0 10px rgba(0,255,136,0.3); }

/* ══════════════════════════════════════════════════════
   SHARED PROJECT PAGE LAYOUT
══════════════════════════════════════════════════════ */
.proj-page { padding-top: 52px; }
/* ── BACK BUTTON ── */
.back-btn {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  font-family: var(--mono);
  font-size: 0.68rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--dim);
  text-decoration: none;
  border: 1px solid rgba(0,245,255,0.2);
  padding: 0.35rem 1rem 0.35rem 0.75rem;
  margin-bottom: 0.8rem;
  clip-path: polygon(8px 0%, 100% 0%, calc(100% - 8px) 100%, 0% 100%);
  transition: color 0.2s, border-color 0.2s, box-shadow 0.2s;
}
.back-btn:hover {
  color: var(--cyan);
  border-color: var(--cyan);
  box-shadow: 0 0 14px rgba(0,245,255,0.35);
}

.proj-header {
  border-bottom: 1px solid var(--border);
  padding: 2rem 2.5rem 1.5rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 1rem;
  background: linear-gradient(180deg, rgba(0,245,255,0.03), transparent);
}
.proj-header-left {}
.proj-pg-tag { font-family: var(--mono); font-size: 0.65rem; color: var(--dim); letter-spacing: 0.2em; text-transform: uppercase; margin-bottom: 0.3rem; }
.proj-pg-title { font-family: var(--orb); font-size: 2rem; font-weight: 900; letter-spacing: -0.02em; }
.proj-pg-sub { font-family: var(--raj); font-size: 0.9rem; color: var(--dim); margin-top: 0.2rem; }
.proj-header-right { display: flex; gap: 0.75rem; flex-wrap: wrap; align-items: center; }
.gist-link {
  font-family: var(--mono);
  font-size: 0.68rem;
  color: var(--purple);
  border: 1px solid rgba(155,0,255,0.4);
  padding: 0.35rem 0.9rem;
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  transition: all 0.15s;
}
.gist-link:hover { border-color: var(--purple); box-shadow: 0 0 12px rgba(155,0,255,0.4); color: #fff; }

.proj-body { display: grid; grid-template-columns: 1fr 380px; gap: 0; min-height: calc(100vh - 180px); }
.proj-game-col { padding: 1.5rem 2rem; border-right: 1px solid var(--border); }
.proj-ctrl-col { padding: 1.5rem; overflow-y: auto; background: var(--bg2); display: flex; flex-direction: column; gap: 1.2rem; }

.section-title {
  font-family: var(--orb);
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--cyan);
  margin-bottom: 0.85rem;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}
.section-title::before { content: '//'; color: var(--dim); font-weight: 400; }
.section-title.pink-ttl { color: var(--pink); }
.section-title.green-ttl { color: var(--green); }
.section-title.purple-ttl { color: var(--purple); }

/* ── CODE SECTION ── */
.code-section { margin-top: 2rem; padding: 0 2rem 3rem; }
.code-section-hdr {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1rem 0;
  border-top: 1px solid var(--border);
  cursor: pointer;
  gap: 1rem;
}
.code-section-hdr h3 {
  font-family: var(--orb);
  font-size: 0.85rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  color: var(--purple);
  display: flex;
  align-items: center;
  gap: 0.5rem;
}
.code-toggle-icon { transition: transform 0.3s; font-size: 1.2rem; color: var(--purple); }
.code-section-body { display: none; }
.code-section-body.open { display: block; animation: fadeIn 0.3s ease; }

/* ── HEURISTIC DISPLAY ── */
.heuristic-card {
  background: rgba(0,245,255,0.03);
  border: 1px solid var(--border);
  padding: 0.85rem;
  margin-bottom: 0.6rem;
}
.h-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.5rem;
  margin-bottom: 0.5rem;
}
.h-name { font-family: var(--raj); font-size: 0.85rem; font-weight: 600; color: var(--text); }
.h-val {
  font-family: var(--orb);
  font-size: 0.75rem;
  color: var(--cyan);
  min-width: 45px;
  text-align: right;
}
.h-bar {
  height: 3px;
  background: var(--border);
  border-radius: 2px;
  overflow: hidden;
  margin-bottom: 0.3rem;
}
.h-bar-fill {
  height: 100%;
  background: linear-gradient(90deg, var(--cyan), var(--purple));
  transition: width 0.5s ease;
  box-shadow: 0 0 6px var(--cyan);
}

/* ── STAT CHIPS ── */
.stat-chips { display: flex; flex-wrap: wrap; gap: 0.5rem; }
.stat-chip {
  font-family: var(--mono);
  font-size: 0.68rem;
  padding: 0.2rem 0.6rem;
  border: 1px solid var(--border);
  background: rgba(0,245,255,0.04);
  color: var(--dim);
}
.stat-chip .val { color: var(--cyan); margin-left: 0.35rem; }
.stat-chip.pink .val { color: var(--pink); }
.stat-chip.green .val { color: var(--green); }
.stat-chip.purple .val { color: var(--purple); }

/* ══════════════════════════════════════════════════════
   2048 GAME
══════════════════════════════════════════════════════ */
.g48-outer { display: flex; flex-direction: column; align-items: center; gap: 1.2rem; }
.g48-score-row { display: flex; gap: 1.5rem; justify-content: center; }
.g48-score-box {
  text-align: center;
  padding: 0.6rem 1.2rem;
  background: rgba(0,245,255,0.04);
  border: 1px solid var(--border);
}
.g48-score-label { font-family: var(--orb); font-size: 0.58rem; color: var(--dim); letter-spacing: 0.15em; }
.g48-score-val { font-family: var(--orb); font-size: 1.5rem; font-weight: 900; color: var(--cyan); text-shadow: 0 0 10px var(--cyan); }
.g48-score-val.pink { color: var(--pink); text-shadow: 0 0 10px var(--pink); }
#g48 { display: grid; gap: 5px; padding: 8px; background: rgba(0,245,255,0.04); border: 1px solid var(--border); }
.t48 { display: flex; align-items: center; justify-content: center; font-family: var(--orb); font-weight: 900; font-size: 1.2rem; transition: all 0.1s; background: rgba(255,255,255,0.03); color: #333; border: 1px solid var(--border); animation: tileAppear 0.1s ease; }
@keyframes tileAppear { from { transform: scale(0.8); opacity: 0.5; } to { transform: scale(1); opacity: 1; } }
.t48.v2   { background: rgba(0,245,255,0.12); color: var(--cyan);   border-color: rgba(0,245,255,0.3);   text-shadow: 0 0 8px var(--cyan); }
.t48.v4   { background: rgba(0,245,255,0.2);  color: var(--cyan);   border-color: rgba(0,245,255,0.5);   text-shadow: 0 0 10px var(--cyan); }
.t48.v8   { background: rgba(0,255,136,0.15); color: var(--green);  border-color: rgba(0,255,136,0.4);   text-shadow: 0 0 8px var(--green); }
.t48.v16  { background: rgba(0,255,136,0.22); color: var(--green);  border-color: rgba(0,255,136,0.6);   text-shadow: 0 0 12px var(--green); }
.t48.v32  { background: rgba(255,179,71,0.18);color: #ffb347;       border-color: rgba(255,179,71,0.5);  text-shadow: 0 0 10px #ffb347; }
.t48.v64  { background: rgba(255,179,71,0.28);color: #ffb347;       border-color: rgba(255,179,71,0.7);  text-shadow: 0 0 14px #ffb347; }
.t48.v128 { background: rgba(255,59,59,0.2);  color: var(--red);    border-color: rgba(255,59,59,0.5);   font-size: 1rem; text-shadow: 0 0 10px var(--red); }
.t48.v256 { background: rgba(255,59,59,0.3);  color: var(--red);    border-color: rgba(255,59,59,0.7);   font-size: 1rem; text-shadow: 0 0 14px var(--red); }
.t48.v512 { background: rgba(155,0,255,0.22); color: var(--purple); border-color: rgba(155,0,255,0.5);   font-size: 0.95rem; text-shadow: 0 0 10px var(--purple); }
.t48.v1024{ background: rgba(155,0,255,0.35); color: var(--purple); border-color: rgba(155,0,255,0.7);   font-size: 0.85rem; text-shadow: 0 0 14px var(--purple); }
.t48.v2048{ background: linear-gradient(135deg, var(--cyan), var(--green)); color: var(--bg); border-color: var(--cyan); font-size: 0.8rem; box-shadow: 0 0 20px var(--cyan); }
.t48.v4096{ background: linear-gradient(135deg, var(--pink), var(--purple)); color: #fff; border-color: var(--pink); font-size: 0.75rem; box-shadow: 0 0 20px var(--pink); }
.t48.v8192{ background: linear-gradient(135deg, var(--yellow), var(--pink)); color: var(--bg); border-color: var(--yellow); font-size: 0.7rem; box-shadow: 0 0 20px var(--yellow); }

/* ══════════════════════════════════════════════════════
   PUZZLE GRID
══════════════════════════════════════════════════════ */
.pzl-grid-wrap { display: inline-grid; gap: 4px; padding: 6px; border: 2px solid var(--dim); background: var(--border); }
.pzl-cell {
  display: flex; align-items: center; justify-content: center;
  font-family: var(--orb); font-size: 1.2rem; font-weight: 700;
  color: #fff; background: rgba(0,245,255,0.06); border: 1px solid var(--border);
  cursor: pointer; transition: all 0.12s; user-select: none;
  text-shadow: 0 0 8px var(--cyan);
}
.pzl-cell.empty { background: rgba(0,0,0,0.3); color: transparent; border-color: #0a1a2a; }
.pzl-cell.selected { background: rgba(0,245,255,0.2); border-color: var(--cyan); box-shadow: 0 0 12px rgba(0,245,255,0.5); }
.pzl-cell.moved { background: rgba(0,255,136,0.15); border-color: var(--green); color: var(--green); text-shadow: 0 0 10px var(--green); animation: moveFlash 0.2s ease; }
@keyframes moveFlash { 0% { transform: scale(0.9); } 100% { transform: scale(1); } }

/* ══════════════════════════════════════════════════════
   N-PUZZLE GRID
══════════════════════════════════════════════════════ */
.np-grid { display: grid; gap: 6px; padding: 10px; background: rgba(255,0,160,0.04); border: 2px solid rgba(255,0,160,0.35); }
.np-tile { display: flex; align-items: center; justify-content: center; font-family: var(--orb); font-weight: 900; background: rgba(255,0,160,0.1); border: 1px solid rgba(255,0,160,0.35); color: var(--pink); text-shadow: 0 0 10px var(--pink); transition: background 0.15s; animation: tileAppear 0.15s ease; cursor: default; }
.np-tile.np-blank { background: rgba(0,0,0,0.3); border-color: rgba(255,0,160,0.12); color: transparent; text-shadow: none; }
.np-tile.np-moved { background: rgba(255,0,160,0.35); box-shadow: inset 0 0 16px rgba(255,0,160,0.5); animation: cellPop 0.2s ease; }

/* ══════════════════════════════════════════════════════
   SUDOKU GRID
══════════════════════════════════════════════════════ */
.sdk-grid { display: grid; grid-template-columns: repeat(9,38px); grid-template-rows: repeat(9,38px); border: 2px solid rgba(0,245,255,0.5); background: var(--border); gap: 1px; }
.sdk-cell { width: 38px; height: 38px; display: flex; align-items: center; justify-content: center; background: var(--bg); }
.sdk-cell.b3r { border-right: 2px solid rgba(0,245,255,0.5); }
.sdk-cell.b3b { border-bottom: 2px solid rgba(0,245,255,0.5); }
.sdk-cell.given { background: rgba(0,245,255,0.06); }
.sdk-cell.given .sdk-inp { color: var(--cyan); font-weight: 700; pointer-events: none; text-shadow: 0 0 6px var(--cyan); }
.sdk-cell.solved .sdk-inp { color: var(--green); text-shadow: 0 0 8px var(--green); animation: cellPop 0.2s ease; }
.sdk-cell.active { background: rgba(155,0,255,0.28) !important; box-shadow: inset 0 0 12px rgba(155,0,255,0.6); }
.sdk-cell.active .sdk-inp { color: #fff !important; text-shadow: 0 0 10px var(--purple); font-weight: 700; animation: cellPop 0.15s ease; }
.sdk-cell.backtrack { background: rgba(255,0,160,0.22) !important; box-shadow: inset 0 0 12px rgba(255,0,160,0.5); }
.sdk-cell.backtrack .sdk-inp { color: var(--pink) !important; text-shadow: 0 0 8px var(--pink); }
.sdk-cell.empty .sdk-inp { color: transparent; }
.sdk-inp { width: 100%; height: 100%; background: transparent; border: none; outline: none; font-family: var(--mono); font-size: 0.9rem; color: var(--dim); text-align: center; cursor: default; pointer-events: none; }
.sdk-inp:focus { background: rgba(0,245,255,0.08); color: #fff; }
@keyframes cellPop { 0% { transform: scale(0.6); opacity:0.5; } 65% { transform: scale(1.15); } 100% { transform: scale(1); opacity:1; } }

/* ══════════════════════════════════════════════════════
   TRANSFORMER
══════════════════════════════════════════════════════ */
.tf-tok-row { display: flex; gap: 4px; flex-wrap: wrap; }
.tf-tok {
  min-width: 32px; height: 32px; padding: 0 6px;
  display: flex; align-items: center; justify-content: center;
  font-family: var(--mono); font-size: 0.78rem; color: var(--green);
  background: rgba(0,255,136,0.08); border: 1px solid rgba(0,255,136,0.35);
  animation: tileAppear 0.15s ease;
}
.tf-tok.tf-tgt { color: var(--cyan); background: rgba(0,245,255,0.08); border-color: rgba(0,245,255,0.35); }
.tf-tok.tf-pred { color: var(--yellow); background: rgba(255,230,0,0.08); border-color: rgba(255,230,0,0.35); }
.tf-tok.tf-wrong { color: var(--red); background: rgba(255,59,59,0.1); border-color: rgba(255,59,59,0.4); }
.tf-heat-wrap { overflow-x: auto; }
.tf-heat-grid { display: inline-grid; gap: 2px; }
.tf-heat-cell {
  width: 26px; height: 26px; border: 1px solid rgba(0,255,136,0.15);
  position: relative; cursor: default;
}
.tf-heat-lbl {
  font-family: var(--mono); font-size: 0.6rem; color: var(--dim);
  display: flex; align-items: center; justify-content: center;
}
.tf-loss-chart { width: 100%; height: 140px; display: block; background: rgba(0,0,0,0.2); border: 1px solid var(--border); }
.tf-head-tabs { display: flex; gap: 0.3rem; flex-wrap: wrap; }
.tf-head-tab {
  font-family: var(--mono); font-size: 0.65rem; padding: 0.25rem 0.6rem;
  border: 1px solid var(--border); color: var(--dim); cursor: pointer; background: none;
}
.tf-head-tab.act { color: var(--green); border-color: var(--green); background: rgba(0,255,136,0.08); }

/* ══════════════════════════════════════════════════════
   AGENT LOG
══════════════════════════════════════════════════════ */
.agent-log {
  flex: 1;
  font-family: var(--mono);
  font-size: 0.7rem;
  background: #010308;
  border: 1px solid var(--border);
  padding: 0.7rem;
  overflow-y: auto;
  max-height: 220px;
  line-height: 1.6;
}
.agent-log .log-move { color: var(--cyan); }
.agent-log .log-val  { color: var(--yellow); }
.agent-log .log-best { color: var(--green); font-weight: 700; }
.agent-log .log-adv  { color: var(--pink); }
.agent-log .log-info { color: var(--dim); }
.agent-log .log-err  { color: var(--red); }

/* ══════════════════════════════════════════════════════
   RESPONSIVE
══════════════════════════════════════════════════════ */
@media(max-width: 1000px) {
  .proj-body { grid-template-columns: 1fr; }
  .proj-ctrl-col { border-right: none; border-top: 1px solid var(--border); }
  .proj-game-col { border-right: none; }
}
@media(max-width: 600px) {
  .project-cards { flex-direction: column; align-items: center; }
  .proj-header { padding: 1.5rem; }
  .proj-game-col { padding: 1rem; }
  #nav { padding: 0 1rem; }
  .nav-links a { padding: 0.4rem 0.5rem; font-size: 0.6rem; }
  .sdk-grid { grid-template-columns: repeat(9,32px); grid-template-rows: repeat(9,32px); }
  .sdk-cell,.sdk-inp { width:32px!important; height:32px!important; font-size:.75rem!important; }
}

/* ══════════════════════════════════════════════════════
   SPINNER
══════════════════════════════════════════════════════ */
@keyframes spin { to { transform: rotate(360deg); } }
.spin { display: inline-block; width: 12px; height: 12px; border: 2px solid var(--border); border-top-color: var(--cyan); border-radius: 50%; animation: spin 0.7s linear infinite; }
.spin.pink { border-top-color: var(--pink); }

/* HEX CORNER BRACKETS */
.bracket-box {
  position: relative;
  padding: 1.5rem;
}
.bracket-box::before, .bracket-box::after {
  content: '';
  position: absolute;
  width: 16px; height: 16px;
  border-color: var(--cyan);
  border-style: solid;
}
.bracket-box::before { top: 0; left: 0; border-width: 2px 0 0 2px; }
.bracket-box::after  { bottom: 0; right: 0; border-width: 0 2px 2px 0; }