:root{--bg: #f7fafb;--panel: #ffffff;--text: #10212b;--muted: #5c6c76;--brand: #2f4b51;--accent: #2a7c78}*{box-sizing:border-box}body{margin:0;font-family:ui-sans-serif,system-ui,-apple-system,Segoe UI,Roboto,Helvetica,Arial,"Apple Color Emoji","Segoe UI Emoji";background:var(--bg);color:var(--text)}a{color:var(--accent);text-decoration:none}.app-shell{display:grid;grid-template-columns:260px 1fr;min-height:100vh}.sidebar{background:#0d1a20;color:#e8eef0;padding:20px;display:flex;flex-direction:column;gap:8px}.logo{display:flex;align-items:center;gap:10px;margin-bottom:20px}.logo img{height:32px}.nav a{display:block;padding:10px 12px;border-radius:8px;color:#c7d3d8}.nav a.active,.nav a:hover{background:#13252d;color:#fff}header{display:flex;justify-content:space-between;align-items:center;padding:16px 24px;background:var(--panel);border-bottom:1px solid #e5eff5;position:sticky;top:0;z-index:10}.content{padding:24px}.grid{display:grid;grid-template-columns:repeat(12,1fr);grid-gap:16px}.card{background:var(--panel);border:1px solid #e5eff5;border-radius:12px;padding:16px}.tile{background:var(--panel);border:1px solid #e5eff5;border-radius:12px;padding:14px;display:flex;flex-direction:column;gap:6px}.kpi{font-weight:600;font-size:22px}.kpi-label{color:var(--muted);font-size:13px}.title{font-weight:700;color:var(--brand);letter-spacing:.5px}.section-title{font-size:18px;font-weight:700;margin:8px 0 12px;color:var(--brand)}.row{display:flex;gap:12px;align-items:center}.btn{background:var(--accent);color:#fff;border:none;padding:10px 14px;border-radius:8px;cursor:pointer}.table{width:100%;border-collapse:collapse}.table th,.table td{border-bottom:1px solid #eef4f7;padding:8px;text-align:left;font-size:14px}.muted{color:var(--muted)}.wide{grid-column:span 12}.span6{grid-column:span 6}.span4{grid-column:span 4}.span3{grid-column:span 3}.span8{grid-column:span 8}