:root {
    --color-bg: #050505;
    /* Black Deep */
    --color-text: #F5F5F5;
    /* Pure White */
    --color-accent: #C5A059;
    /* Discreet Gold */
    --color-secondary: #2A2A2A;
    /* Graphite Grey */
    --color-void: #000000;

    --font-heading: 'Outfit', sans-serif;
    --font-body: 'Inter', sans-serif;

    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 2rem;
    --spacing-lg: 4rem;
    --spacing-xl: 8rem;

    --transition-slow: 0.8s cubic-bezier(0.16, 1, 0.3, 1);
    --transition-fast: 0.3s ease;
}

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

body {
    background-color: var(--color-bg);
    color: var(--color-text);
    font-family: var(--font-body);
    line-height: 1.6;
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
}

p {
    margin-bottom: 1rem;
}

h1,
h2,
h3,
h4,
h5,
h6 {
    font-family: var(--font-heading);
    font-weight: 300;
    text-transform: uppercase;
    letter-spacing: 0.1em;
}

a {
    color: inherit;
    text-decoration: none;
    transition: color var(--transition-fast);
}

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

img {
    max-width: 100%;
    display: block;
}

/* Utilities */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-md);
}

.full-height {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    justify-content: center;
}

.text-center {
    text-align: center;
}

.text-uppercase {
    text-transform: uppercase;
}

.text-gold {
    color: var(--color-accent);
}

/* Typography */
h1.hero-title {
    font-size: clamp(2rem, 5vw, 4rem);
    line-height: 1.1;
    margin-bottom: var(--spacing-md);
}

h2.section-title {
    font-size: clamp(1.5rem, 3vw, 2.5rem);
    margin-bottom: var(--spacing-lg);
    border-bottom: 1px solid var(--color-secondary);
    padding-bottom: var(--spacing-sm);
    display: inline-block;
}

.subtitle {
    font-size: 1.1rem;
    color: #888;
    letter-spacing: 0.05em;
    margin-bottom: var(--spacing-sm);
}

/* Navigation */
nav {
    position: fixed;
    top: 0;
    width: 100%;
    padding: var(--spacing-md);
    display: flex;
    justify-content: space-between;
    align-items: center;
    z-index: 1000;
    background: linear-gradient(to bottom, rgba(5, 5, 5, 0.9), rgba(5, 5, 5, 0));
    backdrop-filter: blur(5px);
}

.logo {
    font-family: var(--font-heading);
    font-weight: 700;
    font-size: 1.5rem;
    letter-spacing: 0.2em;
}

.nav-links {
    display: flex;
    gap: var(--spacing-md);
}

.nav-links a {
    font-size: 0.9rem;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    opacity: 0.8;
}

.nav-links a:hover {
    opacity: 1;
    color: var(--color-accent);
}

.mobile-menu-btn {
    display: none;
    background: none;
    border: none;
    color: white;
    font-size: 1.5rem;
    cursor: pointer;
}

/* Hero Section */
.hero {
    position: relative;
    height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
}

.hero-bg {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    z-index: -1;
    opacity: 0.6;
    filter: contrast(1.1) brightness(0.8);
}

.hero::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(to bottom, rgba(5, 5, 5, 0.2), var(--color-bg));
    z-index: -1;
}

.hero-content {
    text-align: center;
    max-width: 800px;
    animation: fadeIn var(--transition-slow) forwards;
}

/* Sections */
section {
    padding: var(--spacing-xl) 0;
}

.ecosystem-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--spacing-lg);
    margin-top: var(--spacing-lg);
}

.card {
    border-left: 1px solid var(--color-secondary);
    padding-left: var(--spacing-md);
    transition: border-color var(--transition-fast);
}

.card:hover {
    border-color: var(--color-accent);
}

.card h3 {
    font-size: 1.2rem;
    margin-bottom: var(--spacing-sm);
    color: var(--color-text);
}

.card p {
    font-size: 0.95rem;
    color: #aaa;
}

/* Footer */
footer {
    padding: var(--spacing-lg) 0;
    border-top: 1px solid var(--color-secondary);
    margin-top: var(--spacing-xl);
    text-align: center;
    font-size: 0.8rem;
    color: #666;
}

.footer-links {
    margin-top: var(--spacing-sm);
}

.footer-links a {
    margin: 0 var(--spacing-sm);
}

/* Forms */
form {
    max-width: 500px;
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

input,
textarea {
    background: transparent;
    border: 1px solid var(--color-secondary);
    padding: var(--spacing-sm);
    color: var(--color-text);
    font-family: var(--font-body);
}

input:focus,
textarea:focus {
    outline: none;
    border-color: var(--color-accent);
}

button[type="submit"] {
    background: var(--color-text);
    color: var(--color-bg);
    border: none;
    padding: var(--spacing-sm) var(--spacing-md);
    cursor: pointer;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    font-weight: 600;
    transition: background var(--transition-fast);
    align-self: flex-start;
}

button[type="submit"]:hover {
    background: var(--color-accent);
}

/* Responsive */
@media (max-width: 768px) {
    .nav-links {
        display: none;
        /* Mobile menu implementation in JS */
        position: absolute;
        top: 100%;
        left: 0;
        width: 100%;
        background: var(--color-bg);
        flex-direction: column;
        padding: var(--spacing-md);
        text-align: center;
    }

    .nav-links.active {
        display: flex;
    }

    .mobile-menu-btn {
        display: block;
    }

    h1.hero-title {
        font-size: 2.5rem;
    }
}

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(20px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}