:root {
--bg-900: #071028;
--bg-800: #0f172a;
--brand-1: #6C5CE7;
--brand-2: #00B894;
--muted: #9fb3d9;
}

/* HEADER */
header {
position: fixed;
top: 0;
left: 0;
right: 0;
z-index: 1000;
background: rgba(10, 16, 40, 0.65);
backdrop-filter: blur(8px);
border-bottom: 1px solid rgba(255, 255, 255, 0.05);
box-shadow: 0 8px 24px rgba(0, 0, 0, 0.25);
/* padding: 1rem 1rem; */
transition: background 0.3s ease-in-out;
}

/* BRAND LOGO */
.brand {
display: flex;
align-items: center;
gap: 0.6rem;
text-decoration: none;
color: #fff;
}

.brand-cube {
width: 42px;
height: 42px;
border-radius: 10px;
display: flex;
align-items: center;
justify-content: center;
font-family: 'Poppins', sans-serif;
font-weight: 800;
animation: spin 10s linear infinite;
}

@keyframes spin {
0% { transform: rotateY(0deg); }
100% { transform: rotateY(360deg); }
}

.brand span {
font-weight: 700;
font-family: 'Poppins', sans-serif;
font-size: 18px;
}

/* NAVIGATION LINKS */
.header-nav {
display: flex;
align-items: center;
gap: 1.4rem;
}

.header-link {
color: var(--muted);
font-size: 14px;
text-decoration: none;
transition: color 0.2s ease-in-out;
}

.header-link:hover {
color: #fff;
}

/* HEADER SCROLL EFFECT */
header.scrolled {
background: rgba(7, 16, 40, 0.9);
box-shadow: 0 4px 18px rgba(0, 0, 0, 0.4);
}

/* MOBILE MENU */
@media (max-width: 768px) {
.header-nav {
    flex-direction: column;
    background: rgba(10, 16, 40, 0.95);
    position: absolute;
    top: 60px;
    left: 0;
    right: 0;
    padding: 1rem;
    display: none;
}

.header-nav.active {
    display: flex;
}
}
.header-link {
    color: var(--muted);
    font-size: 14px;
    text-decoration: none;
}
@media (min-width: 768px) {
    .container, .container-md, .container-sm {
        max-width: 1400px;
    }
}

.gap-3 {
    gap: 1rem !important;
}
.container-lg {
    max-width: var(--max-width);
}
.align-items-center {
    align-items: center !important;
}
.justify-content-between {
    justify-content: space-between !important;
}
.d-flex {
    display: flex !important
;
}
.container, .container-fluid, .container-lg, .container-md, .container-sm, .container-xl, .container-xxl {
    --bs-gutter-x: 1.5rem;
    --bs-gutter-y: 0;
    width: 100%;
    padding-right: calc(var(--bs-gutter-x) * .5);
    padding-left: calc(var(--bs-gutter-x) * .5);
    margin-right: auto;
    margin-left: auto;
}


body {
    font-family: 'Poppins', sans-serif;
    margin: 0;
    background-color: #f4f7fb;
    color: #222;
    line-height: 1.6;
}

.hero {
    background: linear-gradient(135deg, #001f3f, #003366);
    color: white;
    text-align: center;
    padding: 40px 20px;
    padding-top: 70px;
}

.hero h1 {
    font-size: 2.5rem;
    margin-bottom: 10px;
}

.content {
    max-width: 1000px;
    margin: 50px auto;
    padding: 0 20px;
}

h2, h3 {
    color: #003366;
}

.section {
    margin-bottom: 50px;
    background: #fff;
    border-radius: 12px;
    box-shadow: 0 2px 10px rgba(0,0,0,0.08);
    padding: 30px;
}

.section h3 {
    margin-top: 0;
}

ul {
    list-style-type: disc;
    margin-left: 20px;
}

.benefits, .use-cases {
    background: #eaf2fb;
    padding: 30px;
    border-radius: 10px;
}

.cta {
    text-align: center;
    margin: 60px 0;
}

.cta a {
    background: #001f3f;
    color: white;
    padding: 12px 25px;
    text-decoration: none;
    border-radius: 6px;
    font-weight: 600;
}

.cta a:hover {
    background: #003366;
}

.diagram {
    text-align: center;
    margin: 40px 0;
}

.diagram img {
    max-width: 100%;
    height: auto;
    border-radius: 8px;
}
/* .bi-arrow-left-circle::before {
    content: "\f12a";
}

.bi::before, [class^="bi-"]::before, [class*=" bi-"]::before {
    display: inline-block;
    font-family: bootstrap-icons !important;
    font-style: normal;
    font-weight: normal !important;
    font-variant: normal;
    text-transform: none;
    line-height: 1;
    vertical-align: -.125em;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
} */