:root {
    --primary-color: #ff6b00;
    /* Basketball Orange */
    --secondary-color: #1a1a1a;
    /* Dark background */
    --accent-color: #fbbf24;
    --text-color: #f3f4f6;
    --text-muted: #9ca3af;
    --card-bg: rgba(255, 255, 255, 0.05);
    --card-hover: rgba(255, 255, 255, 0.1);
    --border-color: rgba(255, 255, 255, 0.1);
    --font-main: 'Helvetica Neue', Arial, sans-serif;
    --shadow-sm: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    --shadow-md: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
}

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

body {
    font-family: var(--font-main);
    background-color: var(--secondary-color);
    color: var(--text-color);
    line-height: 1.6;
    display: flex;
    flex-direction: column;
    align-items: center;
    min-height: 100vh;
    padding: 20px;
}

a {
    color: var(--primary-color);
    text-decoration: none;
    transition: color 0.3s ease;
}

a:hover {
    color: var(--accent-color);
    text-decoration: underline;
}

img {
    max-width: 100%;
    height: auto;
    display: block;
    border-radius: 8px;
}

/* Layout Containers */
.container {
    max-width: 1200px;
    width: 100%;
    display: grid;
    gap: 40px;
}

/* Header & Navigation */
header {
    text-align: center;
    margin-bottom: 20px;
}

.main-nav {
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: 15px;
    background: var(--card-bg);
    padding: 20px;
    border-radius: 12px;
    backdrop-filter: blur(10px);
    border: 1px solid var(--border-color);
    margin-bottom: 40px;
}

.main-nav a {
    color: #fff;
    font-weight: bold;
    padding: 10px 20px;
    border-radius: 6px;
    background: rgba(255, 255, 255, 0.05);
    transition: all 0.3s ease;
}

.main-nav a:hover {
    background: var(--primary-color);
    transform: translateY(-2px);
    text-decoration: none;
    box-shadow: 0 4px 12px rgba(255, 107, 0, 0.3);
}

/* Content Grid */
.content-wrapper {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: 40px;
}

@media (max-width: 900px) {
    .content-wrapper {
        grid-template-columns: 1fr;
    }
}

/* Techniques Section */
.techniques-section h1 {
    font-size: 2rem;
    color: #fff;
    margin-bottom: 30px;
    border-bottom: 2px solid var(--primary-color);
    display: inline-block;
    padding-bottom: 10px;
}

.techniques-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
    gap: 20px;
}

.technique-card {
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 20px;
    text-align: center;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
}

.technique-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-md);
    background: var(--card-hover);
}

.technique-images {
    display: flex;
    justify-content: center;
    gap: 10px;
    margin-bottom: 15px;
}

.technique-card h3 {
    margin-top: auto;
}

/* Sidebar / Topics Menu */
.sidebar-menu {
    background: var(--card-bg);
    border-radius: 12px;
    padding: 30px;
    border: 1px solid var(--border-color);
    align-self: start;
}

.menu-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 15px;
}

.menu-item {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 10px;
    border-radius: 8px;
    background: rgba(0, 0, 0, 0.2);
    transition: background 0.3s;
}

.menu-item:hover {
    background: rgba(255, 255, 255, 0.05);
}

.menu-item img {
    width: 30px;
    height: 30px;
    object-fit: contain;
}

/* Footer & Nba Teams */
.brands-section {
    margin-top: 60px;
    padding-top: 40px;
    border-top: 1px solid var(--border-color);
    width: 100%;
}

.nba-teams {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 15px;
    margin-bottom: 30px;
}

.nba-teams img {
    opacity: 0.7;
    transition: opacity 0.3s, transform 0.3s;
    height: 50px;
    /* Normalize height */
    width: auto;
}

.nba-teams img:hover {
    opacity: 1;
    transform: scale(1.1);
}

/* Ads & Misc */
.ads-container {
    margin: 40px 0;
    text-align: center;
    padding: 20px;
    background: rgba(255, 255, 255, 0.02);
    border-radius: 8px;
}

.highlight-box {
    margin-top: 40px;
    padding: 20px;
    background: linear-gradient(135deg, rgba(255, 107, 0, 0.1) 0%, rgba(0, 0, 0, 0) 100%);
    border-left: 4px solid var(--primary-color);
    border-radius: 4px;
}

/* Utility */
.text-center {
    text-align: center;
}

.hidden {
    display: none;
}

/* Mobile Smartphone Optimization */
@media (max-width: 600px) {
    body {
        padding: 10px;
    }

    .container {
        gap: 20px;
    }

    /* Header adjustments */
    header .moo {
        max-width: 100%;
        height: auto;
    }

    /* Navigation: Stack buttons for easy tapping */
    .main-nav {
        flex-direction: column;
        gap: 10px;
        padding: 15px;
    }

    .main-nav a {
        display: block;
        text-align: center;
        width: 100%;
        padding: 12px;
        font-size: 1.1rem;
    }

    /* Techniques Section */
    .techniques-section h1 {
        font-size: 1.5rem;
        margin-bottom: 20px;
        white-space: normal;
        /* Allow title wrapping */
    }

    .techniques-grid {
        grid-template-columns: 1fr;
        /* Force single column for better visibility */
        gap: 15px;
    }

    .technique-card {
        padding: 15px;
    }

    .technique-images img {
        height: auto;
        max-height: 80px;
        /* Don't let images get too huge */
    }

    /* Sidebar Menu */
    .sidebar-menu {
        padding: 20px;
    }

    .menu-grid {
        grid-template-columns: 1fr;
        /* Single column menu for better touch targets */
    }

    .menu-item {
        padding: 12px;
        justify-content: center;
    }

    /* Footer Brands */
    .nba-teams img {
        height: 30px;
        /* Smaller logos for mobile */
        margin: 5px;
    }
}