/* assets/sidebar.css — Şık ve responsive sol menü */
:root{
  --bg:#0f172a;        /* slate-900 */
  --bg-soft:#111827;   /* gray-900 */
  --fg:#e5e7eb;        /* gray-200 */
  --fg-dim:#a1a1aa;    /* zinc-400 */
  --primary:#22d3ee;   /* cyan-400 */
  --accent:#38bdf8;    /* sky-400 */
  --active:#0ea5e9;    /* sky-500 */
  --card:#111827;
  --border:#1f2937;    /* gray-800 */
}

*{box-sizing:border-box}
body{margin:0;background:#0b1220;color:var(--fg);font:14px/1.5 system-ui,-apple-system,Segoe UI,Roboto,Helvetica,Arial,sans-serif}

/* Layout */
.layout{
  display:grid;
  grid-template-columns: 260px 1fr;
  min-height:100vh;
}
@media (max-width: 960px){
  .layout{ grid-template-columns: 1fr; }
}

/* Sidebar */
.sidebar{
  position:sticky; top:0; align-self:start;
  height:100vh; overflow:auto;
  background:linear-gradient(180deg,var(--bg),var(--bg-soft));
  border-right:1px solid var(--border);
  padding:16px 12px;
}
@media (max-width: 960px){
  .sidebar{
    position:fixed; z-index:50; left:0; top:0; bottom:0; width: 280px;
    transform: translateX(-100%);
    transition: transform .25s ease;
  }
  .sidebar.open{ transform: translateX(0); }
}

/* Brand + burger */
.sidebar__brand{
  display:flex; align-items:center; justify-content:space-between;
  margin:4px 8px 16px;
}
.brand{color:#fff;text-decoration:none;font-weight:800;font-size:18px;letter-spacing:.3px}
.burger{display:none; background:transparent; border:0; cursor:pointer; padding:8px; margin:-8px}
.burger span{display:block; width:22px; height:2px; background:#fff; margin:4px 0; border-radius:2px}
@media (max-width: 960px){ .burger{ display:block; } }

/* Menu */
.menu{display:flex; flex-direction:column; gap:6px}
.menu__item{
  display:flex; align-items:center; gap:12px;
  padding:10px 12px; border-radius:12px; text-decoration:none; color:var(--fg);
  border:1px solid transparent;
  transition: background .15s ease, border-color .15s ease, color .15s ease, transform .05s ease;
}
.menu__item:hover{ background:#0b1830; border-color:#0b2a4a; color:#fff }
.menu__item .icon{display:inline-flex; width:20px; height:20px; opacity:.9}
.menu__item .text{white-space:nowrap; overflow:hidden; text-overflow:ellipsis}
.menu__item.is-active{
  background:linear-gradient(180deg,rgba(34,211,238,.08),rgba(56,189,248,.08));
  border-color:#12466b; color:#fff;
  box-shadow: 0 0 0 1px rgba(56,189,248,.25) inset;
}

/* Topbar (for small screens) */
.topbar{
  display:none;
  position:sticky; top:0; z-index:40; background:var(--card);
  border-bottom:1px solid var(--border);
  padding:10px 14px; gap:10px; align-items:center; justify-content:space-between;
}
.topbar .title{font-weight:700}
@media (max-width: 960px){ .topbar{ display:flex; } }

/* Main content */
.main{
  padding:24px;
}
.card{
  background:var(--card); border:1px solid var(--border);
  border-radius:16px; padding:18px;
  box-shadow: 0 10px 25px rgba(0,0,0,.08);
}