:root {
    --space-green: #39ff14;
    --void-black: #000000;
    --quantum-purple: #bf00ff;
    --probability-blue: #00ffff;
}

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

html {
    font-family: "Lato", monospace;
    -webkit-font-smoothing: antialiased;
    -moz-font-smoothing: antialiased;
    text-rendering: optimizeLegibility;
}

body {
    background-color: var(--void-black);
    color: var(--space-green);
    line-height: 1.6;
    overflow-x: hidden;
}

body::before {
    content: '≋≋≋≋≋≋≋≋≋≋≋≋≋≋≋';
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    opacity: 0.1;
    font-size: 2em;
    pointer-events: none;
    animation: matrixRain 20s linear infinite;
    white-space: nowrap;
    z-index: 1;
}

@keyframes matrixRain {
    from { transform: translateY(-50%); }
    to { transform: translateY(50%); }
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 2rem;
    position: relative;
    z-index: 2;
}

nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 0;
    border-bottom: 3px double var(--space-green);
    margin-bottom: 4rem;
}

nav .logo {
    font-size: 2rem;
    font-weight: bold;
    animation: quantumFluctuate 4s infinite;
}

@keyframes quantumFluctuate {
    0% { transform: scale(1); }
    25% { transform: scale(1.1) rotate(5deg); }
    50% { transform: scale(0.9) rotate(-5deg); }
    75% { transform: scale(1.05) rotate(2deg); }
    100% { transform: scale(1); }
}

nav .menu {
    display: flex;
    gap: 2rem;
}

nav a {
    color: var(--space-green);
    text-decoration: none;
    transition: all 0.3s ease;
}

nav a:hover {
    color: var(--quantum-purple);
    text-shadow: 0 0 10px var(--quantum-purple);
    transform: translate(5px, -5px) rotate(5deg);
}

.hero {
    text-align: center;
    margin-bottom: 4rem;
    position: relative;
}

.hero h1 {
    font-size: 3.5rem;
    margin-bottom: 1rem;
    animation: probabilityWave 8s infinite;
}

@keyframes probabilityWave {
    0%, 100% { color: var(--space-green); }
    33% { color: var(--quantum-purple); }
    66% { color: var(--probability-blue); }
}

.hero p {
    font-size: 1.4rem;
    color: #cccccc;
    font-style: italic;
}

.theorem {
    font-size: 1.8rem;
    text-align: center;
    margin: 4rem 0;
    line-height: 1.4;
    font-style: italic;
    animation: theoremPhase 10s infinite;
}

@keyframes theoremPhase {
    0% { opacity: 1; transform: scale(1); }
    50% { opacity: 0.7; transform: scale(1.05); }
    100% { opacity: 1; transform: scale(1); }
}

.grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    margin-bottom: 4rem;
}

a {
    text-decoration: none;
}

.card {
    background: rgba(0, 0, 0, 0.7);
    padding: 2rem;
    border: 2px dashed var(--space-green);
    position: relative;
    overflow: hidden;
    transition: all 0.3s ease;
}

.card:hover {
    transform: scale(1.02) rotate(1deg);
    border-style: solid;
    border-color: var(--quantum-purple);
}

.card::before {
    content: '⚛';
    position: absolute;
    top: 10px;
    right: 10px;
    font-size: 24px;
    opacity: 0.9;
    color: var(--quantum-purple);
}

.card h2 {
    color: var(--space-green);
    margin-bottom: 1rem;
    font-size: 1.5rem;
    position: relative;
}

.card p {
    color: #999;
    position: relative;
}

.featured-book {
    background: rgba(0, 0, 0, 0.8);
    padding: 3rem;
    border: 3px solid var(--space-green);
    margin-bottom: 4rem;
    position: relative;
    transform: rotate(-1deg);
}

.featured-book:hover {
    transform: rotate(1deg);
}

.cta-button {
    display: inline-block;
    padding: 1rem 2rem;
    background: var(--space-green);
    color: var(--void-black);
    text-decoration: none;
    font-weight: bold;
    transition: all 0.3s ease;
    border-radius: 50px;
}

.cta-button:hover {
    background: var(--quantum-purple);
    transform: scale(1.1) rotate(5deg);
    box-shadow: 0 0 20px var(--quantum-purple);
}

.newsletter {
    text-align: center;
    margin-bottom: 4rem;
    padding: 2rem;
    border: 2px dashed var(--space-green);
    animation: borderBlink 4s infinite;
}

@keyframes borderBlink {
    0%, 100% { border-color: var(--space-green); }
    50% { border-color: var(--quantum-purple); }
}

.text-purple-600 {
    color: rgb(147, 51, 234);
}

.text-cyan-400 {
    color: rgb(34, 211, 238);
}

.newsletter input {
    padding: 1rem;
    width: 300px;
    background: rgba(0, 0, 0, 0.7);
    border: 1px solid var(--space-green);
    color: var(--space-green);
    margin-right: 1rem;
    border-radius: 25px;
}

footer {
    text-align: center;
    padding: 2rem;
    color: #666;
    font-style: italic;
}

@media (max-width: 768px) {
    .hero h1 { font-size: 2.5rem; }
    .theorem { font-size: 1.4rem; }
    .newsletter input {
        width: 100%;
        margin-bottom: 1rem;
    }
}

.blog-content {
    color: rgb(209, 213, 219);  /* text-gray-300 */
    line-height: 1.625;         /* leading-relaxed */
    letter-spacing: 0.025em;    /* tracking-wide */
}

.back-button {
    color: rgb(34, 211, 238);         /* text-cyan-400 */
    margin-bottom: 1rem;              /* mb-4 */
  }
  
  .back-button:hover {
    color: rgb(147, 51, 234);        /* hover:text-purple-600 */
    transition-property: color;       /* transition-colors */
    transition-timing-function: cubic-bezier(0.4, 0, 0.2, 1);
    transition-duration: 150ms;
  }

  .hidden-text {
    color: rgba(57, 255, 20, 0.03);    /* Very faint green, almost invisible */
    font-size: 0.8rem;                 /* Slightly smaller text */
    opacity: 0.9;                      /* Additional transparency */
    z-index: -1;                      /* Put behind other content */
  }

  .quantum-audio-player {
    display: flex;
    align-items: center;
    gap: 1rem;
    margin: 1.5rem 0;
    padding: 1rem;
    border: 1px dashed rgb(74, 222, 128);
    background: rgba(0, 0, 0, 0.3);
    border-radius: 0.5rem;
  }
  
  .quantum-play-button {
    width: 3rem;
    height: 3rem;
    display: flex;
    align-items: center;
    justify-content: center;
    border: 2px solid rgb(34, 211, 238);
    border-radius: 9999px;
    font-size: 1.5rem;
    background: none;
    color: rgb(34, 211, 238);
    cursor: pointer;
    transition: all 0.3s ease;
  }
  
  .quantum-play-button:hover {
    border-color: rgb(147, 51, 234);
    color: rgb(147, 51, 234);
  }
  
  .quantum-audio-info {
    flex: 1;
  }
  
  .quantum-audio-title {
    color: rgb(34, 211, 238);
    font-size: 0.875rem;
    margin-bottom: 0.25rem;
  }
  
  .quantum-audio-subtitle {
    color: rgb(156, 163, 175);
    font-size: 0.75rem;
  }
 
h2 {
  padding-top: 1rem;
  padding-bottom: 1rem;
}

.card h2 {
    padding-top: 0px;
    padding-bottom: 0px;
  }