:root {
    --bg-color: #0d0f12;
    --surface-color: rgba(25, 28, 33, 0.7);
    --surface-border: rgba(255, 255, 255, 0.08);
    --text-primary: #fdf4f9;
    --text-secondary: #c1b5bd;
    --accent-glow: rgba(217, 70, 239, 0.15);
    /* Fuchsia 500 */
    --accent-color: #d946ef;
    /* Fuchsia 500 */
    --accent-hover: #c026d3;
    /* Fuchsia 600 */
    --font-sans: 'Inter', system-ui, -apple-system, sans-serif;
    --border-radius: 12px;
    --transition-speed: 0.3s;
}

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

body {
    background-color: var(--bg-color);
    color: var(--text-primary);
    font-family: var(--font-sans);
    line-height: 1.6;
    overflow-x: hidden;
    position: relative;
    -webkit-font-smoothing: antialiased;
}

/* Background Effects */
.background-effects {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    z-index: -1;
    overflow: hidden;
    pointer-events: none;
}

.glow {
    position: absolute;
    border-radius: 50%;
    filter: blur(100px);
    opacity: 0.5;
}

.glow-1 {
    top: -10%;
    right: -5%;
    width: 50vw;
    height: 50vw;
    background: radial-gradient(circle, var(--accent-glow), transparent 70%);
}

.glow-2 {
    bottom: -20%;
    left: -10%;
    width: 60vw;
    height: 60vw;
    background: radial-gradient(circle, rgba(139, 92, 246, 0.1), transparent 70%);
    /* Keep purple secondary glow */
}

/* Layout */
.container {
    max-width: 720px;
    margin: 0 auto;
    padding: 0 20px;
}

.mt-4 {
    margin-top: 2rem;
}

.text-center {
    text-align: center;
}

/* Typography */
h1,
h2,
h3 {
    font-weight: 600;
    line-height: 1.1;
    margin-bottom: 0.75rem;
    letter-spacing: -0.02em;
}

h1.title {
    font-size: clamp(2.5rem, 8vw, 3.5rem);
    font-weight: 800;
    background: linear-gradient(135deg, #fff 0%, #d4d4d8 100%);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    margin-bottom: 0.25rem;
}

h2 {
    font-size: 1.75rem;
    color: #fff;
    border-bottom: 1px solid var(--surface-border);
    padding-bottom: 0.5rem;
    margin-bottom: 1rem;
}

h3 {
    font-size: 1.15rem;
    color: #e2e8f0;
}

p {
    color: var(--text-secondary);
    margin-bottom: 0.75rem;
    font-size: 1rem;
}

/* Hero Section */
.hero {
    padding: 8vh 0 6vh;
    text-align: center;
}

.hero .subtitle {
    font-size: 1.1rem;
    color: var(--accent-color);
    letter-spacing: 0.05em;
    text-transform: uppercase;
    font-weight: 600;
}

/* Cards */
.card {
    background: var(--surface-color);
    border: 1px solid var(--surface-border);
    border-radius: var(--border-radius);
    padding: 1.5rem 2rem;
    margin-bottom: 2rem;
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.2);
    transition: transform var(--transition-speed), box-shadow var(--transition-speed);
}

.card:hover {
    transform: translateY(-4px);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.3), 0 0 20px var(--accent-glow);
    border-color: rgba(255, 255, 255, 0.15);
}

/* Grid & Sub-cards */
.grid-2 {
    display: grid;
    grid-template-columns: 1fr;
    gap: 1.5rem;
    margin-top: 1.5rem;
}

@media (min-width: 600px) {
    .grid-2 {
        grid-template-columns: repeat(2, 1fr);
    }
}

.sub-card {
    background: rgba(0, 0, 0, 0.2);
    padding: 1rem;
    border-radius: 12px;
    border: 1px solid rgba(255, 255, 255, 0.05);
    transition: background var(--transition-speed);
    display: flex;
    flex-direction: column;
}

.sub-card p {
    flex-grow: 1;
}

.sub-card:hover {
    background: rgba(0, 0, 0, 0.4);
}

/* Buttons and Links */
.links {
    display: flex;
    gap: 1rem;
    flex-wrap: wrap;
    margin-top: 1rem;
}

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0.4rem 1rem;
    font-size: 0.95rem;
    background: var(--accent-color);
    color: #fff;
    text-decoration: none;
    border-radius: 8px;
    font-weight: 600;
    transition: all var(--transition-speed);
    border: 1px solid transparent;
}

.btn:hover {
    background: var(--accent-hover);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(217, 70, 239, 0.3);
}

.btn-outline {
    background: transparent;
    border-color: var(--surface-border);
    color: var(--text-primary);
}

.btn-outline:hover {
    background: rgba(255, 255, 255, 0.05);
    border-color: var(--accent-color);
    color: #fff;
    box-shadow: none;
}

.btn.small {
    padding: 0.35rem 0.8rem;
    font-size: 0.85rem;
}

.text-link {
    color: var(--accent-color);
    text-decoration: none;
    font-weight: 600;
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    transition: color var(--transition-speed);
}

.text-link hover {
    color: var(--accent-hover);
}

.text-link span {
    transition: transform var(--transition-speed);
}

.text-link:hover span {
    transform: translateX(4px);
}

/* Stats Layer */
.physics-metrics {
    display: grid;
    grid-template-columns: 1fr;
    gap: 1.5rem;
    align-items: center;
    margin-top: 1rem;
}

@media (min-width: 600px) {
    .physics-metrics {
        grid-template-columns: auto 1fr;
    }
}

.physics-metrics .stats-box {
    margin: 0;
}

.physics-metrics .links {
    margin-top: 0;
    display: grid;
    grid-template-columns: 1fr;
    gap: 1rem;
}

@media (min-width: 600px) {
    .physics-metrics .links {
        grid-template-columns: repeat(2, 1fr);
    }
}

.stats-box {
    display: inline-flex;
    flex-direction: column;
    background: rgba(217, 70, 239, 0.08);
    /* Fuchsia subtle background */
    border: 1px solid rgba(217, 70, 239, 0.2);
    padding: 0.75rem 1.25rem;
    border-radius: 8px;
    margin: 1rem 0;
}

.stat-label {
    font-size: 0.8rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--accent-color);
    font-weight: 600;
}

.stat-value {
    font-size: 2rem;
    font-weight: 800;
    color: #fff;
    line-height: 1.1;
}

/* Lists */
.initiative-list {
    list-style: none;
}

.initiative-list li {
    padding: 0.75rem 0;
    border-bottom: 1px solid var(--surface-border);
    color: var(--text-secondary);
    position: relative;
    padding-left: 1.25rem;
    font-size: 0.95rem;
}

.initiative-list li::before {
    content: "•";
    color: var(--accent-color);
    position: absolute;
    left: 0;
    font-size: 1.25rem;
    top: 0.45rem;
}

.initiative-list li:last-child {
    border-bottom: none;
}

.initiative-list strong {
    color: var(--text-primary);
}

/* Footer */
.footer {
    padding: 3rem 0 1.5rem;
    border-top: 1px solid var(--surface-border);
    margin-top: 3rem;
}

.social-links {
    display: flex;
    justify-content: center;
    gap: 1.25rem;
    margin-bottom: 1.25rem;
}

.social-icon {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 38px;
    height: 38px;
    border-radius: 50%;
    background: var(--surface-color);
    border: 1px solid var(--surface-border);
    color: var(--text-primary);
    text-decoration: none;
    font-size: 1.15rem;
    font-weight: bold;
    transition: all var(--transition-speed);
}

.social-icon:hover {
    background: var(--accent-color);
    border-color: var(--accent-color);
    transform: translateY(-4px);
    color: #fff;
}

.contact-info {
    margin-bottom: 1rem;
}

.contact-info a {
    color: var(--text-primary);
    text-decoration: none;
    transition: color var(--transition-speed);
}

.contact-info a:hover {
    color: var(--accent-color);
}

.copyright {
    font-size: 0.85rem;
    color: #64748b;
}

/* Animations */
.section-animate {
    opacity: 0;
    transform: translateY(20px);
    transition: opacity 0.8s cubic-bezier(0.16, 1, 0.3, 1), transform 0.8s cubic-bezier(0.16, 1, 0.3, 1);
}

.section-animate.visible {
    opacity: 1;
    transform: translateY(0);
}