:root {
    --primary-color: #ffba08;
    --secondary-color: #ff6ec7;
    --background: #121212;
    --text-color: #ffffff;
    --nav-height: 70px;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Roboto', sans-serif;
}

html, body {
    max-width: 100%;
    overflow-x: hidden;
}

body {
    background: var(--background);
    color: var(--text-color);
    line-height: 1.6;
}

/* Navbar Styles */
.navbar {
    background: rgba(18, 18, 18, 0.95);
    height: var(--nav-height);
    padding: 0 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    width: 100%;
    z-index: 1000;
    backdrop-filter: blur(10px);
}

.nav-brand {
    font-size: 1.8rem;
    font-weight: 700;
    color: var(--primary-color);
}

.nav-links {
    display: flex;
    gap: 2rem;
}

.nav-links a {
    color: var(--text-color);
    text-decoration: none;
    transition: color 0.3s;
}

.nav-links a:hover, .nav-links a.active {
    color: var(--primary-color);
}

/* Hero Section */
.hero {
    height: 30vh;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    background: linear-gradient(rgba(18, 18, 18, 0.8), rgba(18, 18, 18, 0.9));
    margin-top: var(--nav-height);
    padding: 2rem 2rem 0 2rem;
}

.hero h1 {
    font-size: 3rem;
    color: var(--primary-color);
    margin-bottom: 1rem;
    text-align: center;
}

.hero p {
    font-size: 1.2rem;
    opacity: 0.8;
}

/* Container Styles */
.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 2rem;
    overflow-x: hidden;
}

/* Search Section */
.search-section {
    position: relative;
    margin: 2rem auto;
    width: 100%;
    max-width: 600px;
}

.search-box {
    width: 100%;
    padding: 12px 12px 12px 30px;
    margin: 20px 0;
    font-size: 18px;
    border-radius: 30px;
    border: 2px solid var(--primary-color);
    outline: none;
    background: #333;
    color: var(--text-color);
    box-shadow: 0 4px 10px rgba(0, 0, 0, 0.5);
}

/* Topics Container */
.topics-container {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
    gap: 1.5rem;
    margin: 2rem auto;
    width: 100%;
}

.topic-button {
    background: #1e1e1e;
    padding: 1.5rem;
    border-radius: 10px;
    border: 1px solid #333;
    color: var(--text-color);
    cursor: pointer;
    transition: all 0.3s;
    font-size: 17px;
    font-family: cursive;
}

.topic-button:hover {
    transform: translateY(-5px);
    border-color: var(--primary-color);
    box-shadow: 0 5px 15px rgba(255, 186, 8, 0.2);
}

/* Enhanced Responsive Design */
@media (max-width: 768px) {
    .navbar {
        padding: 0 1rem;
    }

    .nav-links {
        gap: 1rem;
    }

    .nav-links a:nth-child(3) {  /* Targets Contact link */
        display: none;
    }

    body {
        text-align: center;
        padding: 20px 0;
    }

    .container {
        padding: 1rem;
        width: 100%;
        max-width: 600px;
    }

    .topics-container {
        display: block;
        margin-top: 20px;
        padding: 0 1rem;
    }
    
    .topic-button {
        background: #333;
        color: #fff;
        width: 80%;
        border: none;
        padding: 15px 30px;
        display: block;
        margin: 0 auto 10px auto;
        border-radius: 50px;
        font-size: 16px; 
        text-transform: uppercase;
        box-shadow: 0 4px 12px rgba(0, 0, 0, 0.6);
        font-family: 'Arial', sans-serif;
    }

    .topic-button:hover {
        transform: scale(1.05);
        background: linear-gradient(45deg, #ff6ec7, #ffba08);
        box-shadow: 0 6px 18px rgba(0, 0, 0, 0.8);
    }

    .search-section {
        margin-bottom: 2rem;
    }

    .hero h1 {
        font-size: 2rem;
    }

    .search-box {
        padding: 10px;
        font-size: 16px;
        margin: 15px 0;
    }
}

@media (max-width: 500px) {
    .nav-brand {
        font-size: 1.5rem;
    }

    .nav-links {
        gap: 0.8rem;
    }

    .nav-links a {
        font-size: 0.9rem;
    }

    .hero h1 {
        font-size: 1.8rem;
    }

    .search-box {
        font-size: 14px;
    }

    .topic-button {
        width: 90%;
        font-size: 14px;
    }
}

@media (max-width: 360px) {
    .nav-brand {
        font-size: 1.3rem;
    }

    .topic-button {
        width: 95%;
        padding: 12px 20px;
    }
}