/* Sidebar & Topbar */
.sidebar{
  position:fixed;top:16px;left:16px;bottom:16px;width:250px;
  padding:18px 14px;display:flex;flex-direction:column;
  background:var(--surface);border:1px solid var(--border);border-radius:var(--r-lg);
  z-index:300;transition:width .35s var(--ease-out),transform .35s var(--ease-out);
  overflow:hidden;
}
.sidebar-header{display:flex;align-items:center;justify-content:space-between;margin-bottom:22px;padding:0 4px}
.sidebar-logo{display:flex;align-items:center;gap:10px;color:var(--txt);overflow:hidden}
.logo-icon{width:36px;height:36px;border-radius:10px;background:var(--txt);color:var(--bg);display:flex;align-items:center;justify-content:center;font-weight:700;font-size:1.15rem;line-height:1;padding-bottom:1px;flex-shrink:0}
.logo-text{font-weight:700;font-size:1.02rem;letter-spacing:-.02em;white-space:nowrap}
.logo-text span{color:var(--txt2);font-weight:500}
.collapse-btn{width:32px;height:32px;border-radius:9px;border:1px solid var(--border);background:transparent;color:var(--txt2);display:flex;align-items:center;justify-content:center;cursor:pointer;flex-shrink:0}
.collapse-btn .ic{width:16px;height:16px;transition:transform .35s var(--ease-out)}
.sidebar.collapsed{width:76px}
.sidebar.collapsed .logo-text,.sidebar.collapsed .nav-label,.sidebar.collapsed .nav-section-label,.sidebar.collapsed .user-details,.sidebar.collapsed .logout-btn{display:none}
.sidebar.collapsed .collapse-btn .ic{transform:rotate(180deg)}
.sidebar.collapsed .sidebar-logo{justify-content:center}
.sidebar.collapsed .sidebar-header{justify-content:center;flex-direction:column;gap:10px}
.sidebar-nav{flex:1;display:flex;flex-direction:column;gap:4px;overflow-y:auto;overflow-x:hidden}
.nav-item{display:flex;align-items:center;gap:12px;padding:10px 12px;border-radius:12px;color:var(--txt2);font-size:.88rem;font-weight:500;white-space:nowrap;transition:background-color .2s,color .2s}
.nav-item .ic{width:18px;height:18px}
.nav-item.active{background:var(--txt);color:var(--bg);font-weight:600}
.sidebar.collapsed .nav-item{justify-content:center;padding:10px 0}
.nav-section-label{font:700 .66rem var(--mono);letter-spacing:.08em;text-transform:uppercase;color:var(--txt3);padding:14px 12px 6px}
.sidebar-footer{border-top:1px solid var(--border);padding-top:14px;margin-top:14px}
.user-info{display:flex;align-items:center;gap:10px;padding:6px;border-radius:12px;min-width:0}
.user-avatar{width:36px;height:36px;border-radius:50%;background:var(--surface-2);color:var(--txt);display:flex;align-items:center;justify-content:center;font-weight:700;font-size:.92rem;flex-shrink:0}
.user-details{flex:1;min-width:0;overflow:hidden}
.user-name{font-size:.84rem;font-weight:600;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.user-balance{font:500 .74rem var(--mono);color:var(--p);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.logout-btn{width:32px;height:32px;border-radius:9px;border:1px solid var(--border);background:transparent;color:var(--txt2);display:flex;align-items:center;justify-content:center;cursor:pointer;flex-shrink:0}
.logout-btn .ic{width:16px;height:16px}

.main-content{flex:1;margin-left:282px;padding:16px 16px 100px 0;min-width:0;display:flex;flex-direction:column;gap:18px}
body.sidebar-collapsed .main-content{margin-left:108px}

.topbar{display:flex;align-items:center;justify-content:space-between;gap:12px;padding:14px 20px;flex-wrap:wrap;background:var(--surface);border:1px solid var(--border);border-radius:var(--r-lg);position:sticky;top:16px;z-index:20}
.topbar-left h1{font-size:1.3rem;font-weight:700;letter-spacing:-.02em;line-height:1.1}
.topbar-left p{font-size:.82rem;color:var(--txt2);margin-top:2px}
.topbar-right{display:flex;align-items:center;gap:8px;flex-wrap:wrap}
.icon-btn,.mobile-toggle,.theme-btn{width:40px;height:40px;border-radius:12px;border:1px solid var(--border);background:transparent;color:var(--txt2);display:flex;align-items:center;justify-content:center;cursor:pointer;flex-shrink:0;transition:background-color .2s,color .2s,border-color .2s,transform .2s var(--ease-spring)}
.icon-btn .ic,.mobile-toggle .ic,.theme-btn .ic{width:18px;height:18px}
.mobile-toggle{display:none}
.theme-btn{position:relative;padding:0}
.theme-btn .ic{position:absolute;transition:transform .35s var(--ease-spring),opacity .2s}
.theme-btn .i-sun{transform:scale(1) rotate(0);opacity:1}
.theme-btn .i-moon{transform:scale(0) rotate(-90deg);opacity:0}
.theme-btn .i-auto{transform:scale(0) rotate(-90deg);opacity:0}
[data-theme-pref="light"]  .theme-btn .i-sun{transform:scale(1) rotate(0);opacity:1}
[data-theme-pref="dark"]   .theme-btn .i-moon{transform:scale(1) rotate(0);opacity:1}
[data-theme-pref="dark"]   .theme-btn .i-sun{transform:scale(0) rotate(90deg);opacity:0}
[data-theme-pref="system"] .theme-btn .i-auto{transform:scale(1) rotate(0);opacity:1}
[data-theme-pref="system"] .theme-btn .i-sun{transform:scale(0) rotate(90deg);opacity:0}
.balance-pill{display:flex;align-items:center;gap:6px;padding:8px 14px;border-radius:var(--r-pill);background:var(--surface-2);border:1px solid var(--border);font-size:.82rem;white-space:nowrap}
.balance-pill .ic{width:14px;height:14px;color:var(--p)}
.balance-pill .label{color:var(--txt2);font-weight:500}
.balance-pill .amount{color:var(--p);font:700 .82rem var(--mono)}