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

body {
    background: #f5f5f5;
}

/* HEADER */
.header {
    display: flex;
    justify-content: space-between;
    padding: 15px 40px;
    background: black;
    color: white;
}

.logo {
    font-size: 20px;
    font-weight: bold;
}

.header nav a {
    color: white;
    margin-left: 20px;
    text-decoration: none;
}

/* HERO */
.hero {
    text-align: center;
    padding: 100px 20px;
    background: linear-gradient(to right, #000, #444);
    color: white;
}

.hero h1 {
    font-size: 45px;
}

.btn {
    background: red;
    color: white;
    padding: 12px 25px;
    display: inline-block;
    margin-top: 20px;
    text-decoration: none;
}

/* HOW SECTION */
.how {
    text-align: center;
    padding: 50px;
}

.how-box {
    display: flex;
    gap: 20px;
    justify-content: center;
    flex-wrap: wrap;
}

.step {
    background: white;
    padding: 20px;
    width: 200px;
    border-radius: 10px;
}

/* CARDS */
.cards {
    display: flex;
    justify-content: center;
    gap: 20px;
    padding: 50px;
    flex-wrap: wrap;
}

.card {
    background: white;
    padding: 20px;
    width: 250px;
    border-radius: 10px;
    text-align: center;
    box-shadow: 0 5px 15px rgba(0,0,0,0.1);
}

.card a {
    display: inline-block;
    margin-top: 10px;
    color: red;
}

/* TESTIMONIAL */
.testimonial {
    padding: 50px;
    text-align: center;
}

/* FOOTER */
.footer {
    background: black;
    color: white;
    text-align: center;
    padding: 20px;
}

.page {
    padding: 50px;
    max-width: 900px;
    margin: auto;
}

.page-title {
    text-align: center;
    margin-bottom: 20px;
}

.page-desc {
    text-align: center;
    margin-bottom: 40px;
    color: #555;
}

.exercise {
    background: white;
    padding: 20px;
    margin-bottom: 20px;
    border-radius: 10px;
    box-shadow: 0 5px 10px rgba(0,0,0,0.1);
}

.page {
    padding: 50px;
    max-width: 1100px;
    margin: auto;
}

.page-title {
    text-align: center;
    margin-bottom: 10px;
}

.page-desc {
    text-align: center;
    margin-bottom: 40px;
    color: #555;
}

/* CARD HOVER EFFECT */
.card {
    transition: 0.3s;
}

.card:hover {
    transform: translateY(-5px);
}