:root {
    --primary-color: #0d6efd;
    --accent-color: #ff6b00;
    --dark-bg: #1a1a1a;
}

body {
    font-family: 'Roboto', sans-serif;
    color: #333;
}

h1, h2, h3, h4, .navbar-brand {
    font-family: 'Oswald', sans-serif;
    text-transform: uppercase;
}

/* Navbar */
.navbar {
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
}
.navbar-brand span {
    color: var(--primary-color);
}

/* Hero Section */
.hero-section {
    background: linear-gradient(rgba(0, 0, 0, 0.7), rgba(0, 0, 0, 0.7)), url('../images/anh_bia_karate.jpg');
    background-size: cover;
    background-position: center;
    color: white;
    padding: 100px 0;
    min-height: 80vh;
    display: flex;
    align-items: center;
}

.hero-btn {
    background-color: var(--accent-color);
    border: none;
    padding: 15px 40px;
    font-size: 1.2rem;
    font-weight: bold;
    transition: transform 0.3s;
}
.hero-btn:hover {
    background-color: #e65100;
    transform: translateY(-3px);
    color: white;
}

/* Feature Cards */
.feature-card {
    border: none;
    border-radius: 10px;
    box-shadow: 0 5px 15px rgba(0,0,0,0.05);
    transition: all 0.3s ease;
    height: 100%;
    padding: 20px;
    background: white;
}

.feature-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 15px 30px rgba(0,0,0,0.1);
}

.icon-box {
    width: 60px;
    height: 60px;
    background-color: rgba(13, 110, 253, 0.1);
    color: var(--primary-color);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 24px;
    margin-bottom: 20px;
}

/* Call to Action */
.cta-section {
    background-color: var(--primary-color);
    color: white;
    padding: 60px 0;
}

/* Footer */
footer {
    background-color: var(--dark-bg);
    color: #aaa;
    padding: 40px 0;
}
footer h5 {
    color: white;
    margin-bottom: 20px;
}