:root{--sidebar-width:280px}body{background:#f5f7fb;font-family:Inter,system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif}.app-shell{display:flex;min-height:100vh}.sidebar{width:var(--sidebar-width);background:linear-gradient(180deg,#111827,#1f2937);color:#fff;position:fixed;inset:0 auto 0 0;padding:24px}.sidebar .brand{font-weight:800;letter-spacing:-.04em;font-size:1.25rem}.sidebar a{color:#cbd5e1;text-decoration:none;border-radius:14px;padding:11px 14px;display:flex;align-items:center;gap:10px;margin:4px 0}.sidebar a:hover,.sidebar a.active{background:rgba(255,255,255,.1);color:#fff}.main{margin-left:var(--sidebar-width);width:calc(100% - var(--sidebar-width));padding:28px}.hero-card{background:radial-gradient(circle at top right,#dbeafe,#fff 40%,#fff);border:0;border-radius:28px;box-shadow:0 20px 60px rgba(15,23,42,.08)}.soft-card{border:0;border-radius:22px;box-shadow:0 12px 34px rgba(15,23,42,.06)}.icon-bubble{width:44px;height:44px;border-radius:14px;background:#eef2ff;display:grid;place-items:center;font-size:1.25rem;color:#3730a3}.metric{font-size:2rem;font-weight:800;letter-spacing:-.05em}.status-dot{width:10px;height:10px;border-radius:50%;display:inline-block;background:#22c55e}.form-control,.form-select{border-radius:14px;padding:12px 14px}.btn{border-radius:14px}.chat-box{height:430px;overflow:auto;background:#fff;border-radius:22px;padding:20px}.msg{max-width:78%;padding:14px 16px;border-radius:18px;margin-bottom:12px}.msg.user{background:#2563eb;color:#fff;margin-left:auto}.msg.ai{background:#f1f5f9}.table{vertical-align:middle}@media(max-width:900px){.sidebar{position:relative;width:100%;min-height:auto}.app-shell{display:block}.main{margin-left:0;width:100%}}