/*
  File: /css/cyberpunk-theme.css
  Description: Advanced Cyberpunk Theme for EEG Hub
  Lines: 500+
*/

/*--------------------------------------------------
  1. CSS Custom Properties (Variables)
--------------------------------------------------*/
:root {
  --font-primary: 'Orbitron', sans-serif;
  --font-secondary: 'Roboto Mono', monospace;

  /* Color Palette */
  --color-background: #02040a;
  --color-background-panel: rgba(10, 25, 47, 0.85);
  --color-background-panel-transparent: rgba(10, 25, 47, 0.6);
  --color-text-primary: #e6f1ff;
  --color-text-secondary: #8892b0;
  
  /* Neon Accent Colors */
  --color-neon-primary: #00ffff; /* Cyan */
  --color-neon-secondary: #ff00ff; /* Magenta */
  --color-neon-accent: #f5d216; /* Yellow */
  --color-neon-error: #e84a5f;   /* Red */

  /* Glow Effects */
  --glow-primary: 0 0 5px var(--color-neon-primary), 0 0 10px var(--color-neon-primary), 0 0 20px var(--color-neon-primary);
  --glow-secondary: 0 0 5px var(--color-neon-secondary), 0 0 10px var(--color-neon-secondary), 0 0 15px var(--color-neon-secondary);
  --glow-accent: 0 0 5px var(--color-neon-accent), 0 0 10px var(--color-neon-accent);

  /* Border and Sizing */
  --border-radius: 0;
  --border-width: 2px;
  --border-color-primary: var(--color-neon-primary);
  --border-color-secondary: var(--color-neon-secondary);
}

/*--------------------------------------------------
  2. Base & Typography
--------------------------------------------------*/
*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

body {
  font-family: var(--font-secondary);
  background-color: var(--color-background);
  color: var(--color-text-primary);
  line-height: 1.6;
  overflow-x: hidden;
  background-image:
    linear-gradient(rgba(10, 25, 47, 0.9), rgba(2, 4, 10, 1)),
    url('https://www.transparenttextures.com/patterns/carbon-fibre-v2.png');
}

h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-primary);
  color: var(--color-neon-primary);
  text-transform: uppercase;
  letter-spacing: 2px;
  text-shadow: var(--glow-primary);
  margin-bottom: 1.5rem;
}

h1 { font-size: 3rem; animation: text-flicker 4s linear infinite; }
h2 { font-size: 2rem; border-bottom: var(--border-width) solid var(--color-neon-secondary); padding-bottom: 0.5rem; }
h3 { font-size: 1.5rem; color: var(--color-neon-secondary); text-shadow: var(--glow-secondary); }

p {
  color: var(--color-text-secondary);
  margin-bottom: 1rem;
  max-width: 80ch;
}

a {
  color: var(--color-neon-primary);
  text-decoration: none;
  transition: all 0.3s ease;
}

a:hover {
  color: var(--color-neon-secondary);
  text-shadow: var(--glow-secondary);
}

/*--------------------------------------------------
  3. Animations & Effects
--------------------------------------------------*/
@keyframes text-flicker {
  0% { opacity: 0.8; }
  2% { opacity: 1; }
  8% { opacity: 0.5; }
  9% { opacity: 1; }
  12% { opacity: 0.9; }
  20% { opacity: 1; }
  25% { opacity: 0.6; }
  30% { opacity: 1; }
  70% { opacity: 1; }
  72% { opacity: 0.7; }
  77% { opacity: 1; }
  100% { opacity: 1; }
}

@keyframes scanlines {
  0% { background-position: 0 0; }
  100% { background-position: 0 100%; }
}

@keyframes pulse-glow {
  0%, 100% {
    box-shadow: 0 0 5px var(--color-neon-primary), 0 0 10px var(--color-neon-primary);
  }
  50% {
    box-shadow: 0 0 10px var(--color-neon-primary), 0 0 20px var(--color-neon-primary);
  }
}

@keyframes glitch {
  0% { transform: translate(0); }
  20% { transform: translate(-3px, 3px); }
  40% { transform: translate(-3px, -3px); }
  60% { transform: translate(3px, 3px); }
  80% { transform: translate(3px, -3px); }
  100% { transform: translate(0); }
}

.scanline-overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
  background: linear-gradient(rgba(18, 16, 16, 0) 50%, rgba(0, 0, 0, 0.25) 50%), linear-gradient(90deg, rgba(255, 0, 0, 0.06), rgba(0, 255, 0, 0.02), rgba(0, 0, 255, 0.06));
  background-size: 100% 4px, 6px 100%;
  z-index: 9999;
  animation: scanlines 0.2s linear infinite;
}

/*--------------------------------------------------
  4. Main Layout & Header
--------------------------------------------------*/
.main-header {
  text-align: center;
  padding: 50px 20px;
  border-bottom: var(--border-width) solid var(--border-color-primary);
  background: transparent;
  position: relative;
  overflow: hidden;
}

.main-header::before, .main-header::after {
  content: '';
  position: absolute;
  width: 100px;
  height: var(--border-width);
  background: var(--color-neon-secondary);
  top: 0;
  animation: glitch 2s linear infinite;
}

.main-header::before { left: 10%; }
.main-header::after { right: 10%; }

.main-nav {
  background-color: rgba(0,0,0,0.5);
  backdrop-filter: blur(10px);
  padding: 15px 20px;
  text-align: center;
  border-bottom: 1px solid var(--color-neon-primary);
  position: sticky;
  top: 0;
  z-index: 1000;
  width: 100%;
}

.main-nav ul {
  margin: 0;
  padding: 0;
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 15px;
}

.main-nav a {
  color: var(--color-neon-primary);
  text-decoration: none;
  font-family: var(--font-primary);
  font-size: 1rem;
  padding: 10px 15px;
  transition: all 0.3s ease;
  border: 1px solid transparent;
  position: relative;
}

.main-nav a::before {
  content: '[';
  opacity: 0;
  transition: all 0.3s ease;
  margin-right: 5px;
}
.main-nav a::after {
  content: ']';
  opacity: 0;
  transition: all 0.3s ease;
  margin-left: 5px;
}

.main-nav a:hover, .main-nav a.active {
  color: var(--color-background);
  background-color: var(--color-neon-primary);
  text-shadow: none;
  box-shadow: var(--glow-primary);
}

.main-nav a:hover::before, .main-nav a:hover::after,
.main-nav a.active::before, .main-nav a.active::after {
  opacity: 1;
}

/*--------------------------------------------------
  5. Container & Panels
--------------------------------------------------*/
.container {
  max-width: 1200px;
  margin: 50px auto;
  padding: 40px;
  background: var(--color-background-panel);
  border: var(--border-width) solid var(--border-color-primary);
  backdrop-filter: blur(5px);
  position: relative;
  clip-path: polygon(0 20px, 20px 0, calc(100% - 20px) 0, 100% 20px, 100% calc(100% - 20px), calc(100% - 20px) 100%, 20px 100%, 0 calc(100% - 20px));
}

.container::before, .container::after {
  content: '';
  position: absolute;
  width: 10px;
  height: 10px;
  background: var(--color-neon-secondary);
}
.container::before { top: -2px; left: -2px; }
.container::after { bottom: -2px; right: -2px; }

.panel {
  background: var(--color-background-panel-transparent);
  border: 1px solid var(--border-color-secondary);
  padding: 30px;
  margin-bottom: 2rem;
  clip-path: polygon(10px 0, 100% 0, 100% calc(100% - 10px), calc(100% - 10px) 100%, 0 100%, 0 10px);
}

/*--------------------------------------------------
  6. Controls & Buttons
--------------------------------------------------*/
.controls {
  text-align: center;
  margin-bottom: 30px;
  display: flex;
  justify-content: center;
  gap: 20px;
  flex-wrap: wrap;
}

button {
  padding: 12px 30px;
  font-size: 1rem;
  font-family: var(--font-primary);
  cursor: pointer;
  border: var(--border-width) solid var(--color-neon-secondary);
  border-radius: var(--border-radius);
  background: transparent;
  color: var(--color-neon-secondary);
  transition: all 0.3s ease;
  position: relative;
  overflow: hidden;
  text-transform: uppercase;
}

button::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, transparent, var(--color-neon-secondary), transparent);
  transition: left 0.4s ease;
}

button:hover {
  background: var(--color-neon-secondary);
  color: var(--color-background);
  box-shadow: var(--glow-secondary);
  transform: translateY(-2px);
}

button:hover::before {
  left: 100%;
}

button:disabled {
  border-color: var(--color-text-secondary);
  color: var(--color-text-secondary);
  cursor: not-allowed;
  opacity: 0.5;
}

button:disabled:hover {
  background: transparent;
  color: var(--color-text-secondary);
  box-shadow: none;
  transform: none;
}
button:disabled:hover::before {
  left: -100%;
}

/*--------------------------------------------------
  7. Data Display
--------------------------------------------------*/
.status {
  font-family: var(--font-primary);
  font-size: 1.2rem;
  text-align: center;
  margin-bottom: 30px;
  padding: 15px;
  border: 1px dashed var(--border-color-primary);
  background-color: var(--color-background-panel-transparent);
}

.status #status-text {
  color: var(--color-neon-accent);
  font-weight: bold;
}

.data-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 40px;
}

.data-block {
  background: var(--color-background-panel-transparent);
  border: 1px solid var(--border-color-secondary);
  padding: 30px;
  position: relative;
}

.data-block::before {
  content: '::SYSTEM_READOUT';
  position: absolute;
  top: 5px;
  right: 10px;
  font-family: var(--font-secondary);
  font-size: 0.7rem;
  color: var(--color-text-secondary);
  opacity: 0.5;
}

.data-block h3 {
  margin-bottom: 25px;
}

.data-readout {
  list-style: none;
  padding: 0;
  margin: 0;
}

.data-readout li {
  display: flex;
  justify-content: space-between;
  padding: 10px 0;
  border-bottom: 1px solid rgba(136, 146, 176, 0.2);
  font-size: 1rem;
}

.data-readout li:last-child {
  border-bottom: none;
}

.data-readout .label {
  color: var(--color-text-secondary);
}

.data-readout .value {
  font-family: var(--font-secondary);
  color: var(--color-neon-accent);
  font-weight: bold;
}

/* Table styles for brain waves */
table {
  width: 100%;
  border-collapse: collapse;
  font-size: 1rem;
}

th, td {
  border: 1px solid rgba(136, 146, 176, 0.3);
  padding: 12px;
  text-align: left;
}

th {
  background: transparent;
  color: var(--color-neon-primary);
  text-transform: uppercase;
  font-family: var(--font-primary);
}

td:first-child {
    color: var(--color-text-secondary);
}

td:last-child {
    text-align: right;
    font-family: var(--font-secondary);
    color: var(--color-neon-accent);
    font-weight: bold;
}

/*--------------------------------------------------
  8. Application Placeholders
--------------------------------------------------*/
.app-placeholder {
  width: 100%;
  min-height: 450px;
  border: var(--border-width) dashed var(--border-color-secondary);
  background-color: var(--color-background);
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  padding: 40px;
  color: var(--color-text-secondary);
  position: relative;
  overflow: hidden;
}

.app-placeholder::after {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: repeating-linear-gradient(
        0deg,
        rgba(0, 255, 255, 0.1) 0px,
        rgba(0, 255, 255, 0.1) 1px,
        transparent 1px,
        transparent 20px
    );
    animation: placeholder-grid 10s linear infinite;
}

@keyframes placeholder-grid {
    from { transform: translateY(0px); }
    to { transform: translateY(20px); }
}


.placeholder-title {
  font-family: var(--font-primary);
  font-size: 1.5rem;
  color: var(--color-neon-secondary);
  margin-bottom: 1rem;
  z-index: 1;
}

.placeholder-text {
  font-family: var(--font-secondary);
  font-size: 1rem;
  z-index: 1;
}

/*--------------------------------------------------
  9. Responsive Design
--------------------------------------------------*/
@media (max-width: 992px) {
  .container {
    padding: 30px;
    margin: 30px 20px;
  }
  
  h1 { font-size: 2.5rem; }
  h2 { font-size: 1.8rem; }
  
  .main-nav ul {
    gap: 10px;
  }
  .main-nav a {
    font-size: 0.9rem;
    padding: 8px 10px;
  }
}

@media (max-width: 768px) {
  .data-grid {
    grid-template-columns: 1fr;
  }

  .main-header {
    padding: 40px 15px;
  }

  .controls {
    flex-direction: column;
    gap: 15px;
  }

  button {
    width: 100%;
  }

  .main-nav ul {
    flex-direction: column;
    align-items: center;
  }
}

@media (max-width: 480px) {
  h1 { font-size: 2rem; }
  h2 { font-size: 1.5rem; }

  .container {
    padding: 20px;
    margin: 20px 10px;
    clip-path: none; /* Simplify shape for small screens */
    border-radius: 8px;
  }
}