body {
    margin: 0;
    font-family: Segoe UI, Arial, sans-serif;
    background: #f5f7fb;
    color: #1f2937;
}

/* Header */
.top {
    position: sticky;
    top: 0;
    background: #fff;
    z-index: 999;
    box-shadow: 0 2px 10px rgba(0,0,0,.1);
}

.logo {
    height: 90px;
    display: block;
    margin: 10px auto;
}

/* Navigation */
.nav {
    text-align: center;
    background: #0f2d52;
    padding: 14px;
}

.nav a {
    color: #fff;
    text-decoration: none;
    margin: 0 12px;
    font-weight: 600;
}

/* ⭐ UPDATED HERO SECTION WITH BACKGROUND IMAGE */
.hero {
    position: relative;
    text-align: center;
    padding: 140px 20px;
    color: white;
    background-image: url('coach.jpg'); /* background image */
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
}

.overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0,0,0,0.45); /* dark overlay */
    z-index: 1;
}

.hero h1,
.hero h2,
.hero p,
.hero .btn {
    position: relative;
    z-index: 2; /* text above overlay */
}

/* Cards + Layout */
.container {
    max-width: 1100px;
    margin: auto;
    padding: 40px 20px;
}

.grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: 20px;
}

.card {
    background: #fff;
    padding: 24px;
    border-radius: 12px;
    box-shadow: 0 2px 8px rgba(0,0,0,.08);
}

/* Buttons */
.btn {
    background: #174ea6;
    color: #fff;
    padding: 12px 20px;
    border-radius: 8px;
    text-decoration: none;
}

/* Subpage */
.subpage {
    max-width: 900px;
    margin: 40px auto;
    text-align: center;
    padding: 20px;
}

/* Mobile */
@media(max-width: 768px) {
    .nav a {
        display: inline-block;
        margin: 6px;
    }
    .logo {
        height: 70px;
    }
}