/* Global Styles & Reset */
:root {
  --neon-blue: #00f2ff;
  --neon-pink: #ff00ff;
  --neon-green: #39ff14;
  --bg-dark: #050510;
  --text-color: #e0e0e0;
}

body, html {
  margin: 0;
  padding: 0;
  width: 100%;
  height: 100%;
  overflow: hidden;
  background: var(--bg-dark);
  font-family: 'Lexend', sans-serif;
  color: var(--text-color);
}

* {
  box-sizing: border-box;
}

canvas {
  display: block;
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border-width: 0;
}

/* Modals & Overlays */
#overlay, #diagnosis-challenge, #initials-modal, #flash-consult, #equipment-modal {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: 1000;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  background: rgba(0, 0, 0, 0.92);
  backdrop-filter: blur(8px);
  pointer-events: auto;
}

#overlay {
    z-index: 1100;
    background: radial-gradient(circle at center, rgba(10, 15, 30, 0.85) 0%, rgba(5, 5, 10, 0.98) 100%);
}

#overlay h1 {
  font-family: 'Press Start 2P', cursive;
  font-size: 3rem;
  color: var(--neon-blue);
  text-shadow: 0 0 20px var(--neon-blue), 0 0 40px rgba(0, 242, 255, 0.3);
  margin-bottom: 5px;
  letter-spacing: -2px;
}

#overlay .subtitle {
  font-family: 'Rajdhani', sans-serif;
  font-size: 1.2rem;
  color: #888;
  text-transform: uppercase;
  letter-spacing: 5px;
  margin-bottom: 40px;
}

.btn-start {
    margin-top: 15px;
    padding: 18px 50px;
    font-size: 1.2rem;
    background: rgba(0, 242, 255, 0.05);
    color: var(--neon-blue);
    border: 2px solid var(--neon-blue);
    cursor: pointer;
    border-radius: 4px;
    transition: all 0.3s cubic-bezier(0.175, 0.885, 0.32, 1.275);
    text-transform: uppercase;
    font-weight: 700;
    letter-spacing: 2px;
    box-shadow: 0 0 15px rgba(0, 242, 255, 0.2);
    position: relative;
    overflow: hidden;
}

.btn-start::before {
  content: '';
  position: absolute;
  top: 0; left: -100%;
  width: 100%; height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
  transition: 0.5s;
}

.btn-start:hover::before {
  left: 100%;
}

.btn-start:hover {
    background: var(--neon-blue);
    color: #050510;
    box-shadow: 0 0 40px var(--neon-blue);
    transform: scale(1.05);
}

.btn-secondary {
    border-color: var(--neon-pink);
    color: var(--neon-pink);
    box-shadow: 0 0 15px rgba(255, 0, 255, 0.2);
}

.btn-secondary:hover {
    background: var(--neon-pink);
    box-shadow: 0 0 40px var(--neon-pink);
}

/* Diagnostic results */
.dc-card {
    display: flex;
    align-items: flex-start;
    gap: 6px;
    background: rgba(255, 255, 255, 0.05);
    border: 1.5px solid #555;
    border-radius: 8px;
    padding: 10px;
    margin: 4px;
}

.dc-btn {
    background: rgba(0, 242, 255, 0.08);
    border: 2px solid var(--neon-blue);
    color: var(--neon-blue);
    font-family: 'Rajdhani', sans-serif;
    font-size: 1rem;
    padding: 10px 18px;
    border-radius: 6px;
    cursor: pointer;
}

.dc-result-success { border-color: var(--neon-green) !important; background: rgba(57, 255, 20, 0.1) !important; }
.dc-result-warning { border-color: #ffd166 !important; background: rgba(255, 209, 102, 0.1) !important; }
.dc-result-error { border-color: #ff0055 !important; background: rgba(255, 0, 85, 0.1) !important; }