/* RESET */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Segoe UI', sans-serif;
}

/* BACKGROUND */
body {
    min-height: 100vh;
    background: radial-gradient(circle at top, #7a5cff, #1b0f2e);
    color: #eaeaff;
}

/* NAVIGATION CONTAINER */
.nav-wrapper {
    padding: 40px 20px;
    display: flex;
    justify-content: center;
}

/* NAV BAR */
.nav {
    display: flex;
    gap: 6px;
    background: rgba(255, 255, 255, 0.08);
    backdrop-filter: blur(16px);
    padding: 10px;
    border-radius: 16px;
    box-shadow:
        0 0 20px rgba(140, 100, 255, 0.25),
        inset 0 0 1px rgba(255, 255, 255, 0.3);
}

/* TABS */
.nav-item {
    padding: 10px 18px;
    text-decoration: none;
    color: #d6d3ff;
    font-size: 14px;
    border-radius: 10px;
    transition: all 0.3s ease;
    position: relative;
}

/* HOVER EFFECT */
.nav-item:hover {
    background: rgba(255, 255, 255, 0.12);
    color: #ffffff;
}

/* ACTIVE TAB */
.nav-item.active {
    background: linear-gradient(135deg, #9b7bff, #6a4dff);
    color: #ffffff;
    box-shadow: 0 0 12px rgba(155, 123, 255, 0.6);
}

/* MAIN CONTENT */
.content {
    max-width: 900px;
    margin: 80px auto;
    padding: 40px;
    background: rgba(255, 255, 255, 0.06);
    border-radius: 20px;
    backdrop-filter: blur(18px);
    box-shadow: 0 0 40px rgba(0, 0, 0, 0.4);
}

/* HEADINGS */
.content h1 {
    font-weight: 500;
    margin-bottom: 16px;
}

/* BUTTON RESET */
.nav-item {
    border: none;
    background: none;
    cursor: pointer;
}

/* TAB CONTENT */
.tab-content {
    display: none;
}

.tab-content.active {
    display: block;
}