:root{--radius: 18px;--bg: #F8FAFC;--panel: #FFFFFF;--panel2: #F3F4F6;--text: #111827;--muted: #6B7280;--border: rgba(17, 24, 39, .1);--shadow: 0 8px 24px rgba(17, 24, 39, .06);--accent: #2563EB;--accentSoft: rgba(37, 99, 235, .12);--sidebar-bg: #F1F5F9}html.dark{--bg: #050608;--panel: #0F131A;--panel2: #121826;--text: #F1F5F9;--muted: #9CA3AF;--border: rgba(255, 255, 255, .08);--shadow: 0 22px 50px rgba(0, 0, 0, .65);--accent: #FB923C;--accentSoft: rgba(251, 146, 60, .16);--sidebar-bg: #0A0C10}body{background:var(--bg);color:var(--text);transition:background-color .2s ease,color .2s ease}.app-bg{background:var(--bg)}.panel-bg{background:var(--panel)}.panel2-bg{background:var(--panel2)}.sidebar-bg{background:var(--sidebar-bg)}html.dark .nebula-bg{background:radial-gradient(1200px 600px at 20% 10%,rgba(251,146,60,.08),transparent 60%),radial-gradient(900px 500px at 80% 30%,rgba(255,255,255,.04),transparent 55%),radial-gradient(1200px 900px at 50% 90%,rgba(255,255,255,.02),transparent 60%),var(--bg)}html:not(.dark) .nebula-bg{background:var(--bg)}html.dark .glass-card{background:linear-gradient(180deg,#ffffff0f,#ffffff05);border:1px solid var(--border);box-shadow:var(--shadow),inset 0 1px #ffffff0f}html:not(.dark) .glass-card{background:var(--panel);border:1px solid var(--border);box-shadow:var(--shadow)}