:root {
    --bg-color: #0c0a1a;
    --text-color: #e0e0e0;
    --primary-color: #d4af37; /* Gold */
    --card-bg: #1a182a;
    --font-heading: 'Cinzel', serif;
    --font-body: 'Lato', sans-serif;
}

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

html {
    scroll-behavior: smooth;
}

body {
    background-color: var(--bg-color);
    background-image: url('background.png');
    background-size: cover;
    background-attachment: fixed;
    color: var(--text-color);
    font-family: var(--font-body);
    line-height: 1.6;
}

header {
    text-align: center;
    padding: 4rem 1rem 2rem;
    background: linear-gradient(180deg, rgba(12, 10, 26, 0.2), rgba(12, 10, 26, 1));
}

h1 {
    font-family: var(--font-heading);
    font-size: 3rem;
    color: var(--primary-color);
    text-shadow: 0 0 10px var(--primary-color);
}

.subtitle {
    font-size: 1.2rem;
    font-style: italic;
    color: #b0b0b0;
    max-width: 600px;
    margin: 0.5rem auto 0;
}

nav {
    background-color: rgba(26, 24, 42, 0.8);
    backdrop-filter: blur(5px);
    position: sticky;
    top: 0;
    z-index: 1000;
    text-align: center;
    padding: 1rem 0;
    border-bottom: 1px solid var(--primary-color);
}

nav a {
    color: var(--text-color);
    text-decoration: none;
    margin: 0 1.5rem;
    font-family: var(--font-heading);
    font-weight: 700;
    transition: color 0.3s, text-shadow 0.3s;
}

nav a:hover {
    color: var(--primary-color);
    text-shadow: 0 0 5px var(--primary-color);
}

main {
    max-width: 1000px;
    margin: 0 auto;
    padding: 2rem;
}

section {
    background-color: rgba(26, 24, 42, 0.7);
    padding: 2.5rem;
    margin-bottom: 2rem;
    border-radius: 10px;
    border: 1px solid rgba(212, 175, 55, 0.2);
    box-shadow: 0 0 20px rgba(0,0,0,0.5);
}

h2 {
    font-family: var(--font-heading);
    font-size: 2.5rem;
    color: var(--primary-color);
    margin-bottom: 1rem;
    text-align: center;
    padding-bottom: 0.5rem;
    border-bottom: 1px solid var(--primary-color);
}

.section-intro {
    text-align: center;
    max-width: 80%;
    margin: 0 auto 2rem;
    font-size: 1.1rem;
    font-style: italic;
    color: #ccc;
}

.grid-container {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 1.5rem;
}

.card {
    background: var(--card-bg);
    border-radius: 8px;
    overflow: hidden;
    transition: transform 0.3s, box-shadow 0.3s;
    display: flex;
    flex-direction: column;
}

.card:hover {
    transform: translateY(-5px);
    box-shadow: 0 0 15px var(--primary-color);
}

.card-image {
    width: 100%;
    height: 250px;
    object-fit: contain;
    background-color: #000;
    padding: 1rem;
}

.card-content {
    padding: 1.5rem;
    flex-grow: 1;
}

.card-content h3 {
    font-family: var(--font-heading);
    color: var(--primary-color);
    font-size: 1.5rem;
}

.card-content p {
    font-size: 0.95rem;
}

/* Numerology */
.calculator {
    display: flex;
    justify-content: center;
    gap: 1rem;
    margin-bottom: 2rem;
}

#nameInput {
    padding: 0.8rem;
    border-radius: 5px;
    border: 1px solid var(--primary-color);
    background-color: var(--bg-color);
    color: var(--text-color);
    font-size: 1rem;
    width: 300px;
}

#calculateBtn {
    padding: 0.8rem 1.5rem;
    border: 1px solid var(--primary-color);
    background-color: var(--primary-color);
    color: var(--bg-color);
    font-family: var(--font-heading);
    font-weight: 700;
    font-size: 1rem;
    border-radius: 5px;
    cursor: pointer;
    transition: background-color 0.3s, color 0.3s;
}

#calculateBtn:hover {
    background-color: var(--bg-color);
    color: var(--primary-color);
}

#numerology-result {
    text-align: center;
    padding: 2rem;
    background-color: var(--card-bg);
    border-radius: 8px;
    min-height: 150px;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    border: 1px solid rgba(212, 175, 55, 0.3);
}
#numerology-result h3 {
    font-family: var(--font-heading);
    color: var(--primary-color);
    font-size: 2rem;
    margin-bottom: 0.5rem;
}

#numerology-result p {
    max-width: 600px;
}

/* Golden Ratio */
#golden-ratio .content-container {
    display: flex;
    align-items: center;
    gap: 2rem;
}

#golden-ratio .feature-image {
    max-width: 250px;
    border-radius: 8px;
    background: radial-gradient(circle, #333, #000);
}

/* Equations */
.equation-container {
    background-color: var(--card-bg);
    border: 1px solid rgba(212, 175, 55, 0.3);
    padding: 2rem;
    margin: 2rem auto;
    border-radius: 8px;
    text-align: center;
}

.equation {
    font-family: var(--font-body);
    font-size: 2rem;
    font-style: italic;
    color: var(--primary-color);
    text-shadow: 0 0 8px var(--primary-color);
}

.equation-breakdown {
    list-style-type: none;
    margin-top: 1.5rem;
    padding-left: 1rem;
}

.equation-breakdown li {
    margin-bottom: 0.8rem;
}

.equation-breakdown li span {
    font-weight: 700;
    color: var(--primary-color);
    font-family: var(--font-heading);
    margin-right: 0.5rem;
}

footer {
    text-align: center;
    padding: 2rem 1rem;
    margin-top: 2rem;
    color: #888;
}

@media (max-width: 768px) {
    h1 { font-size: 2.5rem; }
    h2 { font-size: 2rem; }
    #golden-ratio .content-container {
        flex-direction: column;
    }
    .equation {
        font-size: 1.5rem;
    }
}