:root {
    --bg-color: #000500;
    --card-bg: rgba(0, 15, 0, 0.85);
    --primary: #00ff41;
    --primary-glow: rgba(0, 255, 65, 0.5);
    --text-color: #00ff41;
    --text-muted: #008f11;
    --border-color: #003b00;
    --header-bg: rgba(0, 5, 0, 0.9);
    --btn-grad: linear-gradient(180deg, #00ff41 0%, #008f11 100%);
    --shadow: 0 0 15px rgba(0, 255, 65, 0.2);
}

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

body {
    font-family: 'Courier New', Courier, monospace;
    background-color: var(--bg-color);
    color: var(--text-color);
    line-height: 1.6;
    overflow-x: hidden;
}

#matrix-canvas {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: -1;
    opacity: 0.5;
}

.container {
    max-width: 1100px;
    margin: 0 auto;
    padding: 0 20px;
}

/* Header & Nav */
header {
    background: var(--header-bg);
    border-bottom: 1px solid var(--border-color);
    padding: 15px 0;
    position: sticky;
    top: 0;
    z-index: 100;
    backdrop-filter: blur(5px);
}

nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    font-size: 1.5rem;
    font-weight: 900;
    color: var(--primary);
    text-decoration: none;
    text-transform: uppercase;
    letter-spacing: 2px;
    text-shadow: 0 0 10px var(--primary-glow);
}

.nav-links {
    display: flex;
    align-items: center;
    gap: 1.5rem;
}

.nav-links a {
    color: var(--text-color);
    text-decoration: none;
    font-size: 0.9rem;
    text-transform: uppercase;
    transition: all 0.3s;
}

.nav-links a:hover {
    color: #fff;
    text-shadow: 0 0 10px var(--primary);
}

/* Cards */
.card {
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: 4px;
    padding: 20px;
    margin-bottom: 20px;
    box-shadow: var(--shadow);
    backdrop-filter: blur(10px);
}

h1, h2, h3 {
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-bottom: 1rem;
    text-shadow: 0 0 5px var(--primary-glow);
}

/* Buttons */
.btn {
    display: inline-block;
    padding: 10px 20px;
    background: transparent;
    border: 1px solid var(--primary);
    color: var(--primary);
    text-decoration: none;
    border-radius: 2px;
    text-transform: uppercase;
    font-weight: bold;
    cursor: pointer;
    transition: all 0.3s;
    font-family: inherit;
}

.btn:hover {
    background: var(--primary);
    color: #000;
    box-shadow: 0 0 20px var(--primary);
}

.btn-grad {
    background: var(--btn-grad);
    color: #000;
    border: none;
}

/* Ranking List */
.ranking-item {
    display: flex;
    align-items: center;
    gap: 1.5rem;
    transition: transform 0.3s, border-color 0.3s;
}

.ranking-item:hover {
    transform: translateX(10px);
    border-color: var(--primary);
}

.rank-number {
    font-size: 2rem;
    font-weight: 900;
    color: var(--text-muted);
    min-width: 40px;
}

.banner-img {
    max-width: 468px;
    border: 1px solid var(--border-color);
    border-radius: 2px;
}

/* Footer */
footer {
    padding: 40px 0;
    border-top: 1px solid var(--border-color);
    background: var(--header-bg);
    text-align: center;
    margin-top: 50px;
}

/* Forms */
input, textarea, select {
    background: rgba(0, 20, 0, 0.8);
    border: 1px solid var(--border-color);
    color: var(--primary);
    padding: 10px;
    border-radius: 2px;
    width: 100%;
    margin-top: 5px;
    font-family: inherit;
}

input:focus, textarea:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 10px var(--primary-glow);
}

.hero {
    text-align: center;
    padding: 4rem 0;
    background: rgba(0, 30, 0, 0.3);
    border: 1px solid var(--border-color);
    margin-bottom: 3rem;
}

.hero h1 {
    font-size: 3rem;
}

/* Categories */
.categories-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
    gap: 1rem;
    margin-top: 2rem;
}

.cat-item {
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    padding: 15px;
    text-decoration: none;
    color: var(--primary);
    text-align: center;
    transition: all 0.3s;
    border-radius: 2px;
}

.cat-item:hover {
    border-color: var(--primary);
    box-shadow: 0 0 15px var(--primary-glow);
    transform: translateY(-5px);
}

@media (max-width: 768px) {
    .ranking-item {
        flex-direction: column;
        text-align: center;
    }
    .nav-links {
        display: none;
    }
}