:root {
    --bg: #0B0D12;
    --panel: rgba(255, 255, 255, .04);
    --panel2: rgba(255, 255, 255, .06);
    --text: rgba(255, 255, 255, .92);
    --muted: rgba(255, 255, 255, .65);
    --line: rgba(255, 255, 255, .08);

    --blue: #00CFFF;
    --red: #FF3B3B;
    --violet: #6B4EFF;

    --radius: 18px;
}

* {
    box-sizing: border-box;
}

html,
body {
    margin: 0;
    padding: 0;
    font-family: 'Inter', system-ui, sans-serif;
    background: var(--bg);
    color: var(--text);
}

a {
    text-decoration: none;
    color: inherit;
}

.container {
    width: min(1120px, calc(100% - 40px));
    margin: auto;
}

.section {
    padding: 80px 0;
}

h1,
h2,
h3 {
    margin: 0 0 14px;
}

p {
    color: var(--muted);
    line-height: 1.6;
}

/* BUTTON SYSTEM */

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 12px 18px;
    border-radius: 14px;
    border: 1px solid var(--line);
    background: var(--panel);
    color: var(--text);
    cursor: pointer;
    transition: all .2s ease;
    font-weight: 600;
}

.btn:hover {
    background: var(--panel2);
    transform: translateY(-2px);
}

.btn.primary {
    border: none;
    background: linear-gradient(90deg, var(--blue), var(--violet), var(--red));
}

.btn.primary:hover {
    opacity: .9;
}

/* CARD SYSTEM */

.card {
    background: var(--panel);
    border: 1px solid var(--line);
    border-radius: 22px;
    padding: 24px;
    transition: transform .2s ease, box-shadow .2s ease;
}

.card:hover {
    transform: translateY(-6px);
    box-shadow: 0 20px 60px rgba(0, 0, 0, .45);
}

/* HEADER */

.site-header {
    border-bottom: 1px solid var(--line);
    backdrop-filter: blur(10px);
    background: rgba(11, 13, 18, .7);
}

.header-inner {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 20px 0;
}

.logo {
    font-weight: 800;
    letter-spacing: .15em;
}

.nav {
    display: flex;
    gap: 24px;
}

.nav a {
    color: var(--muted);
    transition: color .2s ease;
}

.nav a:hover {
    color: var(--text);
}