:root{
  --bg:#0f1115; --panel:#161922; --text:#e6e6e6; --muted:#9aa0a6;
  --brand1:#FF585B; --brand2:#20A6F6; --accent:#4cc9f0; --border:#252a36;
}

/* Genel */
*{box-sizing:border-box}
html,body{margin:0;height:100%;background:var(--bg);color:var(--text);font:15px/1.5 system-ui,Segoe UI,Roboto,Arial}
code,pre{font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace}
a{color:var(--accent);text-decoration:none}
a:hover{opacity:.9}
img{max-width:100%;height:auto}
pre{overflow:auto; -webkit-overflow-scrolling: touch}
code{word-break: break-word}

/* Topbar */
.topbar{
  position:sticky;top:0;z-index:10;
  display:flex;justify-content:space-between;align-items:center;
  padding:12px 16px;border-bottom:1px solid var(--border);
  background:linear-gradient(45deg,var(--panel),#141826)
}
.brand{display:flex;align-items:center;gap:10px}
.logo{
  width:28px;height:28px;display:inline-grid;place-items:center;border-radius:8px;
  /*background:linear-gradient(45deg,var(--brand1),var(--brand2));*/color:#fff;font-weight:700
}
.title{font-weight:600}
.search input{
  width:240px;max-width:50vw;padding:8px 10px;border:1px solid var(--border);
  border-radius:10px;background:#0b0d12;color:var(--text)
}

/* Hamburger (masaüstünde gizli) */
.menu-btn{
  display:none;
  border:1px solid var(--border);
  background:#0b0d12;
  color:var(--text);
  padding:8px 10px;
  border-radius:10px;
  margin:0 12px;
  cursor:pointer;
}

/* Layout */
.layout{display:grid;grid-template-columns:260px 1fr;min-height:calc(100vh - 56px)}
.sidebar{
  position:sticky;top:56px;height:calc(100vh - 56px);overflow:auto;
  padding:16px;border-right:1px solid var(--border);background:#0c0f15;z-index:20;
}
.section-title{font-size:12px;color:var(--muted);text-transform:uppercase;letter-spacing:.08em;margin:12px 8px}
.sidebar ul{list-style:none;margin:8px 0;padding:0}
.sidebar li a{
  display:flex;gap:10px;align-items:center;padding:8px 10px;margin:4px 0;border-radius:10px;color:var(--text);border:1px solid transparent
}
.sidebar li a:hover{background:#111625;border-color:var(--border)}
.sidebar li a.active{
  background:linear-gradient(45deg,rgba(255,88,91,.08),rgba(32,166,246,.08));
  border-color:#1f2532
}
.sidebar code{background:#0b0e14;padding:2px 6px;border-radius:6px;color:#b7c1ff}

.content{padding:24px}
.doc{
  max-width:920px;margin:0 auto;background:var(--panel);border:1px solid var(--border);
  border-radius:16px;padding:24px;box-shadow:0 10px 30px rgba(0,0,0,.25)
}
h1{margin:0 0 8px}
h2{margin:20px 0 8px}
p{color:#d4d7dd}
pre{background:#0b0e14;border:1px solid #1a2233;padding:14px;border-radius:12px;overflow:auto}
ul{padding-left:18px}
.footer{padding:18px 20px;border-top:1px solid var(--border);color:var(--muted);text-align:center;background:#0c0f15}

/* Drawer overlay (mobil menü açıkken) */
.drawer-overlay{
  position:fixed; inset:0;
  background:rgba(0,0,0,.35);
  backdrop-filter:saturate(60%) blur(2px);
  opacity:0; pointer-events:none;
  transition:opacity .2s ease;
  z-index:15;
}

/* Mobil düzen */
@media (max-width: 960px){
  .layout{grid-template-columns:1fr}

  /* Hamburger görünür */
  .menu-btn{display:block}

  /* Arama daha kısa */
  .search input{width:52vw}

  /* Sidebar çekmece davranışı */
  .sidebar{
    position:fixed; top:56px; left:0; bottom:0;
    width:280px; max-width:80vw;
    transform:translateX(-100%);
    transition:transform .2s ease;
    box-shadow: 0 12px 30px rgba(0,0,0,.35);
    border-right:1px solid var(--border);
  }
  .drawer-open .sidebar{ transform:none; }
  .drawer-open .drawer-overlay{ opacity:1; pointer-events:auto; }

  /* İçerik aralığı ve tipografi */
  .content{padding:16px}
  .doc{border-radius:12px;padding:18px}
  h1{font-size:1.35rem}
  h2{font-size:1.1rem}
}