:root {
    --deep: #000000;
    --card: #111111;
    --border: #444444;
    --white: #ffffff;
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family:'Inter',sans-serif;
    background:#000;
    color:#fff;
    position: relative;
}

/* Full-page grid effect */
body::before {
    content: "";
    position: fixed;
    inset: 0;
    width: 100%;
    height: 100%;
    background-image:
        linear-gradient(rgba(255,255,255,0.05) 1px, transparent 1px),
        linear-gradient(90deg, rgba(255,255,255,0.05) 1px, transparent 1px);
    background-size: 64px 64px;
    background-repeat: repeat;
    z-index: 0;
}
@keyframes grid {
    0% { background-position: 0 0, 0 0; }
    100% { background-position: 64px 64px, 64px 64px; }
}

/* NAVBAR */
nav {
    width: 100%;
    position: fixed;
    top: 0;
    left: 0;
    z-index: 1000;
    background: #000;
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--border);
    padding: 1rem 2rem;
    display: flex;
    justify-content: center;
    align-items: center;
}

nav .logo {
    position: absolute;
    left: 1rem;
    height: 80px;
}

nav ul {
    display: flex;
    list-style: none;
    margin: 0 auto;
    gap: 2rem;
}

nav ul li a {
    color: var(--white);
    text-decoration: none;
    font-size: 1rem;
    opacity: 0.85;
    transition: 0.3s;
}

nav ul li a:hover {
    opacity: 1;
    color: #ccc;
}

/* HERO */
.hero {
    min-height: 30vh;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    text-align: center;
    padding: 2rem;
    margin-top: 100px;
    z-index: 1;
}

.hero h1 {
    font-size: 3rem;
    font-weight: 900;
    background: linear-gradient(90deg,#ffffff,#cccccc);
    -webkit-background-clip: text;
    color: transparent;
    margin-bottom: 1rem;
}

.hero p {
    font-size: 1.2rem;
    max-width: 700px;
    opacity: 0.9;
}

/* CONTENT GRID */
.content-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2rem;
    max-width: 1200px;
    margin: 2rem auto 4rem auto;
    padding: 0 2rem;
}

.card {
    background: rgba(17,17,17,0.85);
    border: 1px solid var(--border);
    border-radius: 15px;
    padding: 2rem;
    transition: 0.3s;
    display: flex;
    flex-direction: column;
    justify-content: flex-start;
}

.card h3 {
    font-size: 1.5rem;
    margin-bottom: 1rem;
}

.card p {
    font-size: 1rem;
    line-height: 1.5rem;
}

/* FOOTER */
footer {
    text-align: center;
    padding: 3rem 2rem;
    color: #64748b;
    border-top: 1px solid var(--border);
}

.footer-copy {
    font-size: 0.9rem;
}

/* MOBILE */
@media (max-width:768px) {
    .hero h1 { font-size: 2.2rem; }
    nav .logo { height: 60px; }
    .content-grid {
        grid-template-columns: 1fr;
        margin: 1.5rem auto 3rem auto;
        gap: 1.5rem;
    }
}