:root {
    --primary: #0d6efd;
    --secondary: #00d4ff;
    --dark: #0b1220;
    --dark-card: #121b2e;
    --text: #ffffff;
    --gray: #b7c1d3;
    --success: #22c55e;
}

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

h1, h2, h3, h4, h5, h6 {
    font-weight: 700;
}

/* Glassmorphism */
.glass-card {
    background: rgba(18, 27, 46, 0.7);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 15px;
    padding: 2rem;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.glass-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 30px rgba(13, 110, 253, 0.2);
}

/* Navigation */
.navbar {
    background: rgba(11, 18, 32, 0.9) !important;
    backdrop-filter: blur(15px);
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
}

.navbar-brand {
    font-weight: 800;
    font-size: 1.5rem;
    color: var(--text) !important;
}

.nav-link {
    color: var(--gray) !important;
    font-weight: 500;
    transition: color 0.3s ease;
}

.nav-link:hover, .nav-link.active {
    color: var(--secondary) !important;
}

.btn-primary-gradient {
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    border: none;
    color: #fff;
    font-weight: 600;
    padding: 10px 25px;
    border-radius: 30px;
    transition: all 0.3s ease;
}

.btn-primary-gradient:hover {
    box-shadow: 0 5px 15px rgba(0, 212, 255, 0.4);
    transform: scale(1.05);
    color: #fff;
}

.btn-outline-light-custom {
    border: 1px solid rgba(255,255,255,0.2);
    color: var(--text);
    border-radius: 30px;
    padding: 10px 25px;
    font-weight: 600;
    transition: all 0.3s ease;
}

.btn-outline-light-custom:hover {
    background: rgba(255,255,255,0.1);
    color: var(--text);
}

/* Hero Section */
.hero-section {
    padding: 150px 0 100px;
    background: radial-gradient(circle at top right, rgba(13, 110, 253, 0.15), transparent 50%),
                radial-gradient(circle at bottom left, rgba(0, 212, 255, 0.1), transparent 50%);
    min-height: 100vh;
    display: flex;
    align-items: center;
}

.hero-title {
    font-size: 4rem;
    line-height: 1.2;
    background: linear-gradient(to right, #fff, var(--secondary));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    margin-bottom: 1.5rem;
}

.hero-subtitle {
    font-size: 1.25rem;
    color: var(--gray);
    margin-bottom: 2.5rem;
}

/* Stats */
.stat-item h3 {
    font-size: 2.5rem;
    color: var(--secondary);
    margin-bottom: 0.5rem;
}

.stat-item p {
    color: var(--gray);
    font-size: 1.1rem;
}

/* Text Colors */
.text-secondary-custom { color: var(--secondary) !important; }
.text-gray { color: var(--gray) !important; }
.bg-dark-card { background-color: var(--dark-card) !important; }

/* Forms */
.form-control {
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.1);
    color: var(--text);
    padding: 12px 20px;
    border-radius: 10px;
}
.form-control:focus {
    background: rgba(255, 255, 255, 0.1);
    border-color: var(--secondary);
    color: var(--text);
    box-shadow: none;
}

/* Footer */
footer {
    background-color: #050a14;
    padding: 80px 0 30px;
    border-top: 1px solid rgba(255, 255, 255, 0.05);
}
.footer-link {
    color: var(--gray);
    text-decoration: none;
    transition: color 0.3s;
}
.footer-link:hover {
    color: var(--secondary);
}

/* Masterclass Countdown */
.countdown-box {
    background: rgba(255,255,255,0.05);
    border: 1px solid rgba(255,255,255,0.1);
    border-radius: 10px;
    padding: 15px;
    text-align: center;
    min-width: 80px;
}
.countdown-box span {
    display: block;
    font-size: 2rem;
    font-weight: bold;
    color: var(--secondary);
}
.countdown-box small {
    color: var(--gray);
    text-transform: uppercase;
    font-size: 0.8rem;
}

/* Mobile Menu Styling */
@media (max-width: 991.98px) {
    .navbar-collapse {
        background: rgba(18, 27, 46, 0.95);
        backdrop-filter: blur(15px);
        border: 1px solid rgba(255, 255, 255, 0.1);
        border-radius: 15px;
        padding: 1.5rem;
        margin-top: 1rem;
        box-shadow: 0 15px 35px rgba(0, 0, 0, 0.5);
    }
    
    .navbar-nav .nav-link {
        font-size: 1.1rem;
        padding: 10px 15px;
        margin-bottom: 5px;
        border-radius: 8px;
        transition: all 0.3s ease;
    }
    
    .navbar-nav .nav-link:hover, .navbar-nav .nav-link.active {
        background: rgba(13, 110, 253, 0.15);
        padding-left: 20px;
    }

    .navbar-toggler {
        border: none;
        background: rgba(255,255,255,0.05);
        padding: 8px 12px;
        border-radius: 8px;
    }
    
    .navbar-toggler:focus {
        box-shadow: 0 0 0 0.25rem rgba(13, 110, 253, 0.25);
    }
}