/* Global Reset & Variables */
@font-face {
    font-family: 'Inter';
    font-style: normal;
    font-weight: 400;
    font-display: swap;
    src: url('fonts/Inter-Regular.ttf') format('truetype');
}

@font-face {
    font-family: 'Inter';
    font-style: normal;
    font-weight: 600;
    font-display: swap;
    src: url('fonts/Inter-SemiBold.ttf') format('truetype');
}

@font-face {
    font-family: 'Inter';
    font-style: normal;
    font-weight: 700;
    font-display: swap;
    src: url('fonts/Inter-Bold.ttf') format('truetype');
}

@font-face {
    font-family: 'Inter';
    font-style: normal;
    font-weight: 800;
    font-display: swap;
    src: url('fonts/Inter-ExtraBold.ttf') format('truetype');
}

:root {
    --bg-color: #0a0a0a;
    --text-color: #e0e0e0;
    --primary-color: #00d4ff;
    --secondary-color: #7a2aff;
    --accent-color: #ff007a;
    --glass-bg: rgba(255, 255, 255, 0.05);
    --glass-border: rgba(255, 255, 255, 0.1);
    --font-main: 'Inter', sans-serif;
    --transition-speed: 0.3s;
}

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

body {
    font-family: var(--font-main);
    background-color: var(--bg-color);
    color: var(--text-color);
    line-height: 1.6;
    overflow-x: hidden;
}

a {
    text-decoration: none;
    color: inherit;
    transition: var(--transition-speed);
}

ul {
    list-style: none;
}

/* Typography */
h1,
h2,
h3 {
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: 1rem;
}

h1 {
    font-size: 3.5rem;
    background: linear-gradient(to right, var(--primary-color), var(--secondary-color));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

h2 {
    font-size: 2.5rem;
    color: #fff;
}

p {
    margin-bottom: 1.5rem;
    color: #a0a0a0;
}

/* Utilities */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 2rem;
}

.btn {
    display: inline-block;
    padding: 1rem 2rem;
    border-radius: 50px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 1px;
    cursor: pointer;
    transition: transform var(--transition-speed), box-shadow var(--transition-speed);
    border: none;
}

.btn-primary {
    background: linear-gradient(45deg, var(--primary-color), var(--secondary-color));
    color: #fff;
    box-shadow: 0 4px 15px rgba(0, 212, 255, 0.4);
}

.btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 25px rgba(0, 212, 255, 0.6);
}

/* Header */
header {
    position: fixed;
    top: 0;
    width: 100%;
    z-index: 1000;
    background: rgba(10, 10, 10, 0.8);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--glass-border);
    padding: 1rem 0;
}

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

.logo {
    font-size: 1.5rem;
    font-weight: 800;
    color: #fff;
}

.nav-links {
    display: flex;
    gap: 2rem;
}

.nav-links a:hover {
    color: var(--primary-color);
}

.menu-toggle {
    display: none;
    font-size: 1.5rem;
    cursor: pointer;
}

/* Hero Section */
.hero {
    height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle, rgba(122, 42, 255, 0.15) 0%, transparent 50%);
    animation: rotate 20s linear infinite;
    z-index: -1;
}

@keyframes rotate {
    0% {
        transform: rotate(0deg);
    }

    100% {
        transform: rotate(360deg);
    }
}

.hero-content {
    max-width: 800px;
    z-index: 1;
}

/* Features Section */
.features {
    padding: 5rem 0;
}

.grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    margin-top: 3rem;
}

.card {
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    padding: 2rem;
    border-radius: 15px;
    transition: transform var(--transition-speed), border-color var(--transition-speed);
}

.card:hover {
    transform: translateY(-10px);
    border-color: var(--primary-color);
}

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

/* Courses Section */
.courses {
    padding: 5rem 0;
    background: linear-gradient(to bottom, var(--bg-color), #111);
}

/* Footer */
footer {
    padding: 3rem 0;
    border-top: 1px solid var(--glass-border);
    text-align: center;
    color: #888;
}

footer a {
    color: var(--primary-color);
}

/* Animations */
.fade-in {
    opacity: 0;
    transform: translateY(20px);
    transition: opacity 0.6s ease-out, transform 0.6s ease-out;
}

.fade-in.visible {
    opacity: 1;
    transform: translateY(0);
}

/* Mobile Responsive */
@media (max-width: 768px) {
    .nav-links {
        position: fixed;
        top: 70px;
        right: -100%;
        width: 100%;
        height: calc(100vh - 70px);
        background: var(--bg-color);
        flex-direction: column;
        justify-content: center;
        align-items: center;
        transition: right var(--transition-speed);
    }

    .nav-links.active {
        right: 0;
    }

    .menu-toggle {
        display: block;
    }

    h1 {
        font-size: 2.5rem;
    }
}

/* Table Styles */
.table-container {
    overflow-x: auto;
    border-radius: 15px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.5);
    border: 1px solid var(--glass-border);
}

.ranking-table {
    width: 100%;
    border-collapse: collapse;
    background: rgba(20, 20, 20, 0.6);
    backdrop-filter: blur(10px);
    min-width: 800px;
    /* Ensure table doesn't squish on mobile */
}

.ranking-table th,
.ranking-table td {
    padding: 1.5rem;
    text-align: left;
    border-bottom: 1px solid var(--glass-border);
}

.ranking-table th {
    background: rgba(0, 0, 0, 0.8);
    color: var(--primary-color);
    text-transform: uppercase;
    font-size: 0.9rem;
    letter-spacing: 1px;
    position: sticky;
    top: 0;
}

.ranking-table tr {
    transition: background var(--transition-speed);
}

.ranking-table tr:hover {
    background: rgba(255, 255, 255, 0.03);
}

.rank-num {
    font-weight: 800;
    font-size: 1.2rem;
    color: #fff;
}

/* Top 3 Highlights */
.rank-1 {
    background: linear-gradient(90deg, rgba(255, 215, 0, 0.1), transparent);
    border-left: 4px solid #ffd700;
}

.rank-1 .rank-num {
    color: #ffd700;
}

.rank-2 {
    background: linear-gradient(90deg, rgba(192, 192, 192, 0.1), transparent);
    border-left: 4px solid #c0c0c0;
}

.rank-2 .rank-num {
    color: #c0c0c0;
}

.rank-3 {
    background: linear-gradient(90deg, rgba(205, 127, 50, 0.1), transparent);
    border-left: 4px solid #cd7f32;
}

.rank-3 .rank-num {
    color: #cd7f32;
}