@import url('https://fonts.googleapis.com/css2?family=Orbitron:wght@400;700;900&family=JetBrains+Mono:wght@300;400;700&display=swap');

:root {
  --bg: #0a0a12;
  --bg2: #12121e;
  --bg3: #1a1a2e;
  --neon-cyan: #39ff14;
  --neon-magenta: #ff00aa;
  --neon-green: #00ff88;
  --neon-purple: #8a2be2;
  --neon-yellow: #ffe600;
  --text: #e0e0f0;
  --text-dim: #8888aa;
  --glow-cyan: 0 0 10px rgba(57,255,20,0.5), 0 0 40px rgba(57,255,20,0.2);
  --glow-magenta: 0 0 10px rgba(255,0,170,0.5), 0 0 40px rgba(255,0,170,0.2);
  --glow-green: 0 0 10px rgba(57,255,20,0.5), 0 0 40px rgba(57,255,20,0.2);
  --radius: 12px;
  --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

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

body {
  font-family: 'JetBrains Mono', monospace;
  background: var(--bg);
  color: var(--text);
  display: flex;
  min-height: 100vh;
  overflow-x: hidden;
  cursor: none;
}

::-webkit-scrollbar { width: 6px; }
::-webkit-scrollbar-track { background: var(--bg2); }
::-webkit-scrollbar-thumb { background: var(--neon-cyan); border-radius: 3px; box-shadow: var(--glow-cyan); }

.scanlines {
  position: fixed; inset: 0; z-index: 9999;
  background: repeating-linear-gradient(0deg, transparent, transparent 2px, rgba(0,0,0,0.08) 2px, rgba(0,0,0,0.08) 4px);
  pointer-events: none;
  animation: scan 8s linear infinite;
}

@keyframes scan {
  0% { transform: translateY(0); }
  100% { transform: translateY(4px); }
}

.grid-overlay {
  position: fixed; inset: 0; z-index: -1;
  background-image:
    linear-gradient(rgba(0,240,255,0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(0,240,255,0.03) 1px, transparent 1px);
  background-size: 40px 40px;
}

.cursor-glow {
  position: fixed; width: 30px; height: 30px;
  background: radial-gradient(circle, rgba(0,240,255,0.4), transparent 70%);
  border-radius: 50%; pointer-events: none; z-index: 10000;
  transform: translate(-50%, -50%);
  transition: width 0.3s, height 0.3s, opacity 0.3s;
}

.sidebar {
  width: 240px; min-height: 100vh;
  background: var(--bg2);
  border-right: 1px solid rgba(0,240,255,0.15);
  display: flex; flex-direction: column;
  padding: 24px 0; position: fixed; left: 0; top: 0; z-index: 100;
  backdrop-filter: blur(10px);
}

.logo {
  padding: 0 24px 24px;
  border-bottom: 1px solid rgba(0,240,255,0.1);
  margin-bottom: 16px;
  text-align: center;
}

.logo-neon {
  font-family: 'Orbitron', sans-serif;
  font-size: 20px; font-weight: 900;
  color: var(--neon-cyan);
  text-shadow: var(--glow-cyan);
  letter-spacing: 2px;
}

.logo-light {
  font-family: 'Orbitron', sans-serif;
  font-size: 20px; font-weight: 300;
  color: var(--text);
}

.logo-sub {
  font-size: 8px; letter-spacing: 3px;
  color: var(--text-dim); margin-top: 2px;
  text-transform: uppercase;
}

.nav-section { margin-bottom: 8px; }

.nav-title {
  padding: 8px 24px;
  font-size: 11px; font-weight: 700;
  color: var(--neon-magenta);
  letter-spacing: 3px; cursor: pointer;
  text-shadow: 0 0 5px rgba(255,0,170,0.3);
  transition: var(--transition);
  user-select: none;
}

.nav-title:hover { text-shadow: var(--glow-magenta); }

.nav-list {
  list-style: none; overflow: hidden;
  transition: max-height 0.4s ease;
  max-height: 300px;
}

.nav-list.collapsed { max-height: 0; }

.nav-list li {
  padding: 10px 24px 10px 32px;
  font-size: 13px; cursor: pointer;
  color: var(--text-dim);
  transition: var(--transition);
  position: relative;
  display: flex; align-items: center; gap: 10px;
}

.nav-list li::before {
  content: ''; position: absolute; left: 0; top: 0;
  width: 3px; height: 100%;
  background: var(--neon-cyan);
  transform: scaleY(0);
  transition: var(--transition);
  box-shadow: var(--glow-cyan);
}

.nav-list li:hover { color: var(--text); padding-left: 36px; }
.nav-list li:hover::before { transform: scaleY(1); }
.nav-list li.active { color: var(--neon-cyan); }
.nav-list li.active::before { transform: scaleY(1); }
.nav-icon { font-size: 14px; width: 20px; text-align: center; }

.sidebar-footer {
  margin-top: auto; padding: 16px 24px;
  text-align: center; font-size: 11px; color: var(--text-dim);
}

.glitch {
  position: relative; display: inline-block;
}

.glitch::before, .glitch::after {
  content: attr(data-text); position: absolute; top: 0; left: 0;
  width: 100%; height: 100%; opacity: 0;
}

.glitch:hover::before {
  color: var(--neon-magenta); opacity: 1;
  transform: translate(-2px, -1px);
  animation: glitch1 0.3s infinite;
}

.glitch:hover::after {
  color: var(--neon-cyan); opacity: 1;
  transform: translate(2px, 1px);
  animation: glitch2 0.3s infinite;
}

@keyframes glitch1 {
  0%, 100% { clip-path: inset(0 0 80% 0); }
  50% { clip-path: inset(20% 0 40% 0); }
}

@keyframes glitch2 {
  0%, 100% { clip-path: inset(80% 0 0 0); }
  50% { clip-path: inset(40% 0 20% 0); }
}

.content {
  margin-left: 240px; flex: 1;
  padding: 40px; min-height: 100vh;
}

.page { display: none; animation: fadeIn 0.4s ease; }
.page.active { display: block; }

@keyframes fadeIn {
  from { opacity: 0; transform: translateY(20px); }
  to { opacity: 1; transform: translateY(0); }
}

.page-header {
  margin-bottom: 32px;
}

.page-header h1 {
  font-family: 'Orbitron', sans-serif;
  font-size: 32px; font-weight: 700;
  margin-bottom: 8px;
  background: linear-gradient(135deg, var(--neon-cyan), var(--neon-magenta));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.page-header p {
  color: var(--text-dim); font-size: 14px;
}

.card-grid {
  display: grid; gap: 20px;
}

.card {
  background: var(--bg2);
  border: 1px solid rgba(0,240,255,0.1);
  border-radius: var(--radius);
  padding: 24px;
  transition: var(--transition);
  position: relative; overflow: hidden;
}

.card::before {
  content: ''; position: absolute; top: -1px; left: -1px;
  right: -1px; bottom: -1px;
  border-radius: var(--radius);
  background: linear-gradient(135deg, var(--neon-cyan), transparent, var(--neon-magenta));
  opacity: 0; z-index: -1;
  transition: var(--transition);
}

.card:hover {
  border-color: transparent;
  transform: translateY(-2px);
}

.card:hover::before { opacity: 0.5; }

.card-title {
  font-family: 'Orbitron', sans-serif;
  font-size: 14px; font-weight: 700;
  color: var(--neon-cyan); margin-bottom: 16px;
  letter-spacing: 1px;
}

.btn {
  font-family: 'JetBrains Mono', monospace;
  padding: 10px 20px; border: none; border-radius: 6px;
  font-size: 13px; font-weight: 700; cursor: pointer;
  transition: var(--transition);
  text-transform: uppercase; letter-spacing: 1px;
  position: relative; overflow: hidden;
}

.btn-cyan {
  background: rgba(0,240,255,0.1);
  color: var(--neon-cyan);
  border: 1px solid var(--neon-cyan);
  box-shadow: 0 0 10px rgba(0,240,255,0.1);
}

.btn-cyan:hover {
  background: rgba(0,240,255,0.2);
  box-shadow: var(--glow-cyan);
  transform: translateY(-1px);
}

.btn-magenta {
  background: rgba(255,0,170,0.1);
  color: var(--neon-magenta);
  border: 1px solid var(--neon-magenta);
  box-shadow: 0 0 10px rgba(255,0,170,0.1);
}

.btn-magenta:hover {
  background: rgba(255,0,170,0.2);
  box-shadow: var(--glow-magenta);
  transform: translateY(-1px);
}

.btn-green {
  background: rgba(57,255,20,0.1);
  color: var(--neon-green);
  border: 1px solid var(--neon-green);
  box-shadow: 0 0 10px rgba(57,255,20,0.1);
}

.btn-green:hover {
  background: rgba(57,255,20,0.2);
  box-shadow: var(--glow-green);
  transform: translateY(-1px);
}

.btn:active { transform: translateY(0) scale(0.98); }

.input, .textarea, select {
  font-family: 'JetBrains Mono', monospace;
  background: var(--bg3);
  border: 1px solid rgba(0,240,255,0.15);
  border-radius: 6px; padding: 10px 14px;
  color: var(--text); font-size: 13px;
  transition: var(--transition); width: 100%;
}

.input:focus, .textarea:focus, select:focus {
  outline: none; border-color: var(--neon-cyan);
  box-shadow: 0 0 15px rgba(0,240,255,0.15);
}

.textarea { resize: vertical; min-height: 100px; }

.input-group {
  display: flex; flex-direction: column; gap: 8px;
}

.input-group label {
  font-size: 11px; text-transform: uppercase;
  letter-spacing: 1px; color: var(--text-dim);
}

.row { display: flex; gap: 12px; flex-wrap: wrap; align-items: center; }
.gap-8 { gap: 8px; }
.gap-16 { gap: 16px; }
.mt-8 { margin-top: 8px; }
.mt-16 { margin-top: 16px; }
.mb-16 { margin-bottom: 16px; }
.flex-1 { flex: 1; }
.flex-col { flex-direction: column; }
.items-center { align-items: center; }
.justify-center { justify-content: center; }
.text-center { text-align: center; }
.w-full { width: 100%; }

.badge {
  display: inline-block; padding: 4px 10px; border-radius: 4px;
  font-size: 11px; font-weight: 700; letter-spacing: 1px;
}

.badge-green { background: rgba(57,255,20,0.15); color: var(--neon-green); border: 1px solid rgba(57,255,20,0.3); }
.badge-yellow { background: rgba(255,230,0,0.15); color: var(--neon-yellow); border: 1px solid rgba(255,230,0,0.3); }
.badge-red { background: rgba(255,0,0,0.15); color: #ff4444; border: 1px solid rgba(255,0,0,0.3); }

.output-box {
  background: var(--bg3); border-radius: 6px;
  padding: 14px; border: 1px solid rgba(0,240,255,0.1);
  min-height: 48px; word-break: break-all;
  font-size: 13px; color: var(--neon-green);
}

.checkbox-group {
  display: flex; gap: 16px; flex-wrap: wrap;
}

.checkbox-group label {
  display: flex; align-items: center; gap: 6px;
  font-size: 13px; cursor: pointer; color: var(--text-dim);
  transition: var(--transition);
}

.checkbox-group label:hover { color: var(--text); }

.checkbox-group input[type="checkbox"] {
  appearance: none; width: 16px; height: 16px;
  border: 2px solid var(--text-dim); border-radius: 3px;
  cursor: pointer; transition: var(--transition);
  position: relative;
}

.checkbox-group input[type="checkbox"]:checked {
  border-color: var(--neon-cyan);
  background: var(--neon-cyan);
  box-shadow: 0 0 8px rgba(0,240,255,0.4);
}

.checkbox-group input[type="checkbox"]:checked::after {
  content: '\2713'; position: absolute;
  top: 50%; left: 50%;
  transform: translate(-50%, -50%);
  color: #000; font-size: 12px; font-weight: 700;
}

/* Password Strength */
.strength-bar {
  height: 4px; border-radius: 2px; margin-top: 8px;
  background: var(--bg3); overflow: hidden;
}

.strength-fill {
  height: 100%; border-radius: 2px; transition: var(--transition);
  width: 0;
}

.strength-fill.weak { width: 25%; background: #ff4444; box-shadow: 0 0 8px #ff4444; }
.strength-fill.medium { width: 50%; background: var(--neon-yellow); box-shadow: 0 0 8px var(--neon-yellow); }
.strength-fill.strong { width: 75%; background: var(--neon-green); box-shadow: 0 0 8px var(--neon-green); }
.strength-fill.very-strong { width: 100%; background: var(--neon-cyan); box-shadow: var(--glow-cyan); }

/* Range slider */
input[type="range"] {
  -webkit-appearance: none; width: 100%; height: 4px;
  background: var(--bg3); border-radius: 2px; outline: none;
}

input[type="range"]::-webkit-slider-thumb {
  -webkit-appearance: none; width: 18px; height: 18px;
  border-radius: 50%; background: var(--neon-cyan);
  cursor: pointer; box-shadow: var(--glow-cyan);
}

.btn-sm { font-size: 11px; padding: 6px 14px; }

code {
  font-family: 'JetBrains Mono', monospace;
  background: rgba(0,240,255,0.08);
  padding: 2px 6px; border-radius: 3px;
  font-size: 12px; color: var(--neon-green);
}

/* HTTP Codes */
.http-row {
  display: grid; grid-template-columns: 80px 200px 1fr; gap: 8px;
  padding: 7px 10px; border-bottom: 1px solid rgba(0,240,255,0.06);
  font-size: 13px; transition: var(--transition);
}
.http-row:hover { background: rgba(0,240,255,0.05); }
.http-code { color: var(--neon-cyan); font-weight: 700; font-family: 'Orbitron', sans-serif; }
.http-name { color: var(--neon-magenta); }
.http-desc { color: var(--text-dim); }

/* Wireshark Filters */
.ws-row {
  padding: 7px 10px; border-bottom: 1px solid rgba(0,240,255,0.06);
  font-size: 13px; transition: var(--transition);
}
.ws-row:hover { background: rgba(0,240,255,0.05); }
.ws-filter { color: var(--neon-green); font-weight: 700; display: block; margin-bottom: 2px; }
.ws-desc { color: var(--text-dim); font-size: 12px; }

/* ASCII Table */
.ascii-row {
  display: grid; grid-template-columns: 60px 80px 80px 60px; gap: 8px;
  padding: 5px 10px; border-bottom: 1px solid rgba(0,240,255,0.04);
  font-size: 13px; font-family: 'JetBrains Mono', monospace;
  transition: var(--transition);
}
.ascii-row:hover { background: rgba(0,240,255,0.04); }
.ascii-dec { color: var(--neon-cyan); font-weight: 700; }
.ascii-hex { color: var(--neon-magenta); }
.ascii-oct { color: var(--neon-yellow); }
.ascii-char { color: var(--text); font-size: 16px; text-align: center; }

/* Timer display */
.timer-display {
  font-family: 'Orbitron', sans-serif;
  font-size: 64px; text-align: center;
  color: var(--neon-cyan); text-shadow: var(--glow-cyan);
  padding: 24px;
  letter-spacing: 4px;
}

.timer-controls { display: flex; gap: 12px; justify-content: center; flex-wrap: wrap; }

.port-row {
  display: grid; grid-template-columns: 80px 100px 1fr; gap: 8px;
  padding: 8px 10px; border-bottom: 1px solid rgba(0,240,255,0.06);
  font-size: 13px; transition: var(--transition);
}
.port-row:hover { background: rgba(0,240,255,0.05); }
.port-num { color: var(--neon-cyan); font-weight: 700; }
.port-proto { color: var(--neon-magenta); font-size: 11px; }
.port-name { color: var(--text); }
.port-desc { color: var(--text-dim); font-size: 11px; }

@keyframes pwGlow {
  0% { color: var(--neon-cyan); text-shadow: 0 0 8px var(--neon-cyan); }
  25% { color: var(--neon-magenta); text-shadow: 0 0 8px var(--neon-magenta); }
  50% { color: var(--neon-green); text-shadow: 0 0 8px var(--neon-green); }
  75% { color: var(--neon-yellow); text-shadow: 0 0 8px var(--neon-yellow); }
  100% { color: var(--neon-cyan); text-shadow: 0 0 8px var(--neon-cyan); }
}

@media (max-width: 768px) {
  .sidebar {
    width: 60px; padding: 12px 0;
  }
  .sidebar .logo, .sidebar .nav-title, .sidebar .nav-list li span:not(.nav-icon),
  .sidebar-footer { display: none; }
  .sidebar .nav-list li { padding: 12px; justify-content: center; }
  .sidebar .nav-list li::before { display: none; }
  .content { margin-left: 60px; padding: 20px; }
  .timer-display { font-size: 36px; }
  .base64-grid { grid-template-columns: 1fr; }
  .ttt-grid { max-width: 240px; }
  .memory-grid { max-width: 300px; }
}

@media (max-width: 480px) {
  .content { padding: 16px; }
  .timer-display { font-size: 28px; }
}