:root{
    --bg: #f5f7fb;
    --panel: rgba(255,255,255,0.75);
    --panel2: rgba(255,255,255,0.95);
    --text: #1f2937;
    --muted: #5b6472;
    --line: rgba(15,23,42,0.12);
    --accent: #5b6cff;
    --accent2:#38bdf8;
    --shadow: 0 20px 50px rgba(15,23,42,0.12);
    --radius: 18px;
}

*{ box-sizing: border-box; }
html,body{ height:100%; }

body{
    margin:0;
    color: var(--text);
    background:
            radial-gradient(900px 600px at 15% 10%, rgba(91,108,255,0.12), transparent 60%),
            radial-gradient(900px 600px at 85% 25%, rgba(56,189,248,0.10), transparent 55%),
            radial-gradient(700px 500px at 50% 90%, rgba(91,108,255,0.08), transparent 55%),
            var(--bg);
    font-family: ui-sans-serif, system-ui, -apple-system, Segoe UI, Roboto, Helvetica, Arial;
    line-height: 1.6;
    letter-spacing: 0.15px;
}

.wrap{
    max-width: 1080px;
    margin: 0 auto;
    padding: 20px 18px 64px;
}

/* HEADER */
.site-header{
    position: -webkit-sticky;
    position: sticky;
    top: 0;
    z-index: 9999;
    display:flex;
    align-items:center;
    justify-content: space-between;
    gap: 18px;
    padding: 14px 14px;
    margin: 0 0 24px;
    border: 1px solid var(--line);
    border-radius: calc(var(--radius) + 6px);
    background: rgba(255,255,255,0.85);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    box-shadow: 0 10px 30px rgba(15,23,42,0.10);
}

.logo{
    font-weight: 700;
    letter-spacing: 0.3px;
    font-size: 16px;
    padding: 8px 10px;
    border-radius: 999px;
    background: rgba(255,255,255,0.65);
    border: 1px solid var(--line);
}

/* NAV */
nav{
    display:flex;
    gap: 10px;
    align-items:center;
    flex-wrap: wrap;
    justify-content: flex-end;
}

nav a{
    color: var(--muted);
    text-decoration:none;
    padding: 8px 10px;
    border-radius: 999px;
    border: 1px solid transparent;
    transition: 140ms ease;
    font-size: 14px;
}

nav a:hover{
    color: var(--text);
    background: rgba(91,108,255,0.08);
    border-color: rgba(91,108,255,0.25);
}

/* TYPOGRAPHY */
main h1{
    font-size: clamp(34px, 4.2vw, 52px);
    line-height: 1.05;
    margin: 14px 0 10px;
    letter-spacing: -0.6px;
}

.sub{
    margin: 0 0 18px;
    color: var(--muted);
    font-size: 16px;
    max-width: 820px;
}

.section{
    margin-top: 28px;
    padding-top: 6px;
}

.section h2{
    margin: 0 0 12px;
    font-size: 18px;
    letter-spacing: -0.2px;
}

.small{
    color: var(--muted);
    font-size: 14px;
}

/* GRID + CARDS */
.grid{
    display:grid;
    grid-template-columns: repeat(12, 1fr);
    gap: 16px;
    margin-top: 14px;
}

.card{
    grid-column: span 6;
    padding: 18px 18px;
    border-radius: var(--radius);
    background: linear-gradient(180deg, rgba(255,255,255,0.98), rgba(255,255,255,0.90));
    border: 1px solid var(--line);
    box-shadow: 0 12px 30px rgba(15,23,42,0.10);
    transition: 160ms ease;
}

.card:hover{
    transform: translateY(-2px);
    border-color: rgba(91,108,255,0.35);
    box-shadow: var(--shadow);
}

.card h3{
    margin: 0 0 8px;
    font-size: 16px;
    letter-spacing: -0.2px;
}

.card p{
    margin: 0;
    color: var(--muted);
}

/* LINKS */
a{ color: var(--text); }
a:hover{ color: var(--text); }

/* BUTTONS */
.cta{
    display:flex;
    gap: 12px;
    flex-wrap: wrap;
    margin: 18px 0 10px;
}

.btn{
    display:inline-flex;
    align-items:center;
    justify-content:center;
    gap: 8px;
    padding: 12px 16px;
    border-radius: 999px;
    text-decoration:none;
    border: 1px solid var(--line);
    background: rgba(255,255,255,0.85);
    color: var(--text);
    transition: 160ms ease;
}

.btn:hover{
    transform: translateY(-1px);
    border-color: rgba(91,108,255,0.35);
    background: rgba(255,255,255,0.95);
}

.btn.primary{
    border-color: rgba(91,108,255,0.65);
    background: linear-gradient(135deg, rgba(91,108,255,0.95), rgba(56,189,248,0.70));
    color: #ffffff;
}

/* HERO */
.hero{
    border: 1px solid var(--line);
    border-radius: calc(var(--radius) + 10px);
    background:
            radial-gradient(800px 400px at 20% 20%, rgba(91,108,255,0.12), transparent 60%),
            radial-gradient(700px 420px at 85% 35%, rgba(56,189,248,0.10), transparent 55%),
            linear-gradient(180deg, rgba(255,255,255,0.96), rgba(255,255,255,0.88));
    box-shadow: var(--shadow);
    overflow: hidden;
    margin-top: 6px;
}

.hero-inner{
    padding: 24px 22px;
}

.badge-row{
    display:flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-bottom: 12px;
}

.badge{
    display:inline-flex;
    align-items:center;
    padding: 6px 10px;
    border-radius: 999px;
    font-size: 12px;
    color: var(--muted);
    background: rgba(255,255,255,0.80);
    border: 1px solid var(--line);
}

.badge-soft{
    border-color: rgba(56,189,248,0.45);
    background: rgba(56,189,248,0.12);
}

/* FOOTER */
footer{
    margin-top: 40px;
    padding-top: 18px;
    border-top: 1px solid var(--line);
    display:flex;
    justify-content: space-between;
    gap: 12px;
    flex-wrap: wrap;
    color: var(--muted);
    font-size: 13px;
}

/* RESPONSIVE */
@media (max-width: 820px){
    .card{ grid-column: span 12; }
    .site-header{ padding: 12px 12px; }
}