:root {
    --bg-color: #0a0a0c;
    --text-color: #e0e0e0;
    --accent-color: #00ffcc;
    --card-bg: rgba(255, 255, 255, 0.03);
    --border-color: rgba(255, 255, 255, 0.1);
}

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

body {
    font-family: 'Inter', sans-serif;
    background-color: var(--bg-color);
    color: var(--text-color);
    line-height: 1.6;
    overflow-x: hidden;
}

#app {
    display: flex;
    flex-direction: column;
    min-height: 100vh;
}

header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1.5rem 5%;
    border-bottom: 1px solid var(--border-color);
    backdrop-filter: blur(10px);
    position: sticky;
    top: 0;
    z-index: 100;
}

.logo {
    font-size: 1.5rem;
    font-weight: 800;
    letter-spacing: -0.5px;
    background: linear-gradient(90deg, #fff, var(--accent-color));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

nav {
    display: flex;
    gap: 2rem;
    align-items: center;
}

nav a {
    color: var(--text-color);
    text-decoration: none;
    font-size: 0.9rem;
    font-weight: 600;
    transition: color 0.3s ease;
}

nav a:hover {
    color: var(--accent-color);
}

button {
    cursor: pointer;
    font-family: 'Inter', sans-serif;
    font-weight: 600;
    border-radius: 4px;
    transition: all 0.3s ease;
}

#auth-btn, .primary-btn {
    background-color: var(--accent-color);
    color: #000;
    border: none;
    padding: 0.6rem 1.2rem;
    font-size: 0.9rem;
}

#auth-btn:hover, .primary-btn:hover {
    box-shadow: 0 0 15px rgba(0, 255, 204, 0.5);
    transform: translateY(-2px);
}

.secondary-btn {
    background-color: transparent;
    color: var(--text-color);
    border: 1px solid var(--border-color);
    padding: 0.6rem 1.2rem;
}

.secondary-btn:hover {
    border-color: var(--accent-color);
    color: var(--accent-color);
}

.hero {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 8rem 5%;
    min-height: 80vh;
}

.hero-content {
    flex: 1;
    max-width: 600px;
}

h1 {
    font-size: 3.5rem;
    line-height: 1.1;
    margin-bottom: 1.5rem;
    font-weight: 800;
}

.hero-content p {
    font-size: 1.2rem;
    color: #a0a0a0;
    margin-bottom: 2.5rem;
}

.cta-group {
    display: flex;
    gap: 1rem;
}

.hero-visual {
    flex: 1;
    display: flex;
    justify-content: center;
    align-items: center;
}

.orb {
    width: 300px;
    height: 300px;
    border-radius: 50%;
    background: radial-gradient(circle at 30% 30%, rgba(0, 255, 204, 0.2), rgba(0, 0, 0, 0));
    box-shadow: 0 0 50px rgba(0, 255, 204, 0.1), inset 0 0 20px rgba(0, 255, 204, 0.2);
    animation: pulse 4s infinite alternate;
}

@keyframes pulse {
    0% { transform: scale(0.95); box-shadow: 0 0 40px rgba(0, 255, 204, 0.1); }
    100% { transform: scale(1.05); box-shadow: 0 0 80px rgba(0, 255, 204, 0.2); }
}

section {
    padding: 5rem 5%;
}

h2 {
    font-size: 2.5rem;
    margin-bottom: 3rem;
    text-align: center;
}

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

.card {
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    padding: 2rem;
    border-radius: 8px;
    transition: transform 0.3s ease, border-color 0.3s ease;
}

.card:hover {
    transform: translateY(-5px);
    border-color: var(--accent-color);
}

.card h3 {
    margin-bottom: 1rem;
    color: var(--accent-color);
}

.stats {
    display: flex;
    justify-content: space-around;
    flex-wrap: wrap;
    gap: 2rem;
    background: var(--card-bg);
    padding: 3rem;
    border-radius: 8px;
    border: 1px solid var(--border-color);
}

.stat {
    display: flex;
    flex-direction: column;
    align-items: center;
}

.value {
    font-size: 3rem;
    font-weight: 800;
    color: var(--accent-color);
}

.label {
    font-size: 1rem;
    color: #a0a0a0;
    text-transform: uppercase;
    letter-spacing: 1px;
}

footer {
    text-align: center;
    padding: 2rem;
    border-top: 1px solid var(--border-color);
    color: #666;
    margin-top: auto;
}