:root{
    --blue:#20669A;
    --deep:#0f365c;
    --dark:#0f172a;
    --panel:#ffffff;
    --muted:#64748b;
    --bg:#f3f6fa;
    --accent:#ffd21f;
    --link:#0b73b7;
    --border:#dbe4ef;
    --header-bg:#20669A;
}

*{
    box-sizing:border-box;
}

html,
body{
    margin:0;
    padding:0;
    width:100%;
    min-height:100%;
}

body{
    font-family:"Segoe UI",SegoeUI,Arial,sans-serif;
    background:var(--bg);
    color:#102033;
}

a{
    color:var(--link);
    text-decoration:none;
}

a:hover{
    text-decoration:underline;
}

/* HEADER */

.site-header{
    background:var(--header-bg);
    box-shadow:0 2px 10px rgba(0,0,0,.15);
    position:sticky;
    top:0;
    z-index:20;
}

.logo-strip{
    max-width:1180px;
    margin:0 auto;
    padding:6px 18px 0;
    background:var(--header-bg);
    text-align:center;
}

.brand-logo{
    max-width:100%;
    height:auto;
    display:inline-block;
}

.top-nav{
    max-width:1180px;
    margin:0 auto;
    display:flex;
    justify-content:center;
    align-items:center;
    gap:6px;
    flex-wrap:wrap;
    padding:0 18px 4px;
    background:var(--header-bg);
}

.top-nav a{
    color:#ffffff;
    padding:6px 10px;
    border-radius:8px;
    font-weight:700;
    font-size:14px;
    transition:all .25s ease;
}

.top-nav a:hover,
.top-nav a.active{
    background:rgba(255,255,255,.18);
    color:var(--accent);
    text-decoration:none;
}

/* DOCS LAYOUT */

.docs-layout{
    display:grid;
    grid-template-columns:285px minmax(0,1fr);
    gap:8px;
    width:100%;
    max-width:none;
    margin:6px 0 0;
    padding:0;
}

/* SIDEBAR */

.sidebar{
    background:#ffffff;
    border:1px solid var(--border);
    border-left:0;
    border-radius:0 14px 14px 0;
    padding:8px;
    height:calc(100vh - 96px);
    overflow:auto;
    position:sticky;
    top:90px;
    box-shadow:4px 8px 22px rgba(15,23,42,.05);
}

.sidebar-title{
    font-weight:900;
    padding:14px;
    color:#ffffff;
    background:var(--deep);
    border-radius:10px;
    margin-bottom:10px;
    font-size:17px;
}

.nav-section{
    margin-bottom:10px;
}

.nav-section-title{
    width:100%;
    background:#f1f5f9;
    border:1px solid var(--border);
    border-radius:10px;
    padding:10px 12px;
    text-align:left;
    font-weight:800;
    cursor:pointer;
    display:flex;
    justify-content:space-between;
    align-items:center;
    gap:8px;
}

.nav-items{
    padding:6px 0 4px 8px;
}

.nav-items a{
    display:block;
    padding:10px 12px;
    border-radius:8px;
    color:#26384f;
    font-size:15px;
    line-height:1.25;
    transition:.2s ease;
}

.nav-items a:hover,
.nav-items a.active{
    background:#e8f4ff;
    color:var(--link);
    text-decoration:none;
    font-weight:800;
    border-left:4px solid var(--accent);
}

/* MAIN CONTENT */

.content{
    background:var(--panel);
    border:1px solid var(--border);
    border-right:0;
    border-radius:14px 0 0 14px;
    min-height:calc(100vh - 100px);
    overflow:hidden;
    width:100%;
    box-shadow:0 8px 24px rgba(15,23,42,.05);
}

.content-toolbar{
    display:flex;
    gap:12px;
    align-items:center;
    padding:11px 20px;
    border-bottom:1px solid var(--border);
    background:#f8fafc;
    color:var(--muted);
    font-weight:700;
}

.small-btn{
    border:1px solid var(--border);
    background:#fff;
    border-radius:8px;
    padding:8px 10px;
    cursor:pointer;
    display:none;
}

/* MARKDOWN CONTENT - MICROSOFT STYLE */

.markdown-body{
    padding:28px 36px 50px;
    line-height:1.6;
    font-size:15px;
    font-family:"Segoe UI",SegoeUI,Arial,sans-serif;
    max-width:none;
}

.markdown-body h1{
    font-size:34px;
    line-height:1.2;
    margin:0 0 20px;
    border-bottom:1px solid var(--border);
    padding-bottom:16px;
    color:#0d2f52;
}

.markdown-body h2{
    margin-top:36px;
    margin-bottom:16px;
    color:#12385a;
    font-size:26px;
    line-height:1.3;
}

.markdown-body h3{
    margin-top:28px;
    margin-bottom:12px;
    color:#173f67;
    font-size:20px;
}

.markdown-body p{
    margin:0 0 16px;
}

.markdown-body ul,
.markdown-body ol{
    padding-left:26px;
    margin:0 0 22px;
}

.markdown-body li{
    margin-bottom:8px;
}

.markdown-body code{
    background:#eef6ea;
    padding:3px 6px;
    border-radius:5px;
    font-size:.9em;
}

.markdown-body pre{
    background:#eef6ea;
    padding:18px;
    border-radius:12px;
    overflow:auto;
    border:1px solid #c9e8c5;
    margin:24px 0;
}

.markdown-body pre code{
    background:transparent;
    padding:0;
}

.markdown-body table{
    border-collapse:collapse;
    width:100%;
    margin:24px 0;
}

.markdown-body th,
.markdown-body td{
    border:1px solid var(--border);
    padding:11px;
    text-align:left;
}

.markdown-body th{
    background:#f1f5f9;
}

/* HERO / CARDS */

.hero{
    max-width:1360px;
    margin:18px auto;
    padding:0 10px;
    display:grid;
    grid-template-columns:1.45fr .9fr;
    gap:24px;
}

.hero-content,
.hero-card,
.cards-section{
    background:var(--panel);
    border:1px solid var(--border);
    border-radius:18px;
    box-shadow:0 10px 24px rgba(15,23,42,.07);
}

.hero-content{
    padding:34px;
}

.hero-card{
    padding:28px;
}

.cards-section{
    max-width:1360px;
    margin:0 auto 28px;
    padding:24px;
}

.cards{
    display:grid;
    grid-template-columns:repeat(auto-fit,minmax(240px,1fr));
    gap:18px;
}

.card{
    border:1px solid var(--border);
    border-radius:16px;
    padding:20px;
    background:#fff;
    transition:all .25s ease;
}

.card:hover{
    transform:translateY(-3px);
    box-shadow:0 6px 16px rgba(0,0,0,.08);
}

/* FOOTER */

.footer{
    text-align:center;
    padding:30px;
    color:var(--muted);
}

/* MOBILE */

@media(max-width:850px){

    .hero{
        grid-template-columns:1fr;
    }

    .docs-layout{
        grid-template-columns:1fr;
        gap:8px;
        margin-top:8px;
        padding:0 8px;
    }

    .sidebar{
        display:none;
        position:static;
        height:auto;
        border-left:1px solid var(--border);
        border-radius:12px;
    }

    .sidebar.open{
        display:block;
    }

    .content{
        border-right:1px solid var(--border);
        border-radius:12px;
    }

    .small-btn{
        display:inline-block;
    }

    .markdown-body{
        padding:22px;
        font-size:14px;
        line-height:1.6;
    }

    .markdown-body h1{
        font-size:28px;
    }

    .markdown-body h2{
        font-size:22px;
    }

    .markdown-body h3{
        font-size:18px;
    }
}