:root{--navy:#0d1738;--blue:#2563eb;--sky:#eff6ff;--green:#16a34a;--red:#dc2626;--amber:#d97706;--purple:#7c3aed;--text:#182036;--muted:#718096;--line:#e6eaf2;--bg:#f4f7fb;--white:#fff;--shadow:0 8px 25px rgba(31,45,78,.08)}*{box-sizing:border-box}html,body{margin:0;font-family:Inter,Segoe UI,Arial,sans-serif;color:var(--text);background:var(--bg)}a{color:inherit;text-decoration:none}button,input,select,textarea{font:inherit}.app{min-height:100vh;display:flex}.sidebar{position:fixed;inset:0 auto 0 0;width:255px;background:linear-gradient(180deg,#0b1432,#111b44);color:#d9e2ff;padding:24px 16px;z-index:30;overflow:auto}.brand{display:flex;gap:12px;align-items:center;padding:0 8px 24px;border-bottom:1px solid rgba(255,255,255,.1)}.brand-mark{width:42px;height:42px;border-radius:13px;background:linear-gradient(135deg,#3b82f6,#8b5cf6);display:grid;place-items:center;font-size:22px}.brand h2{font-size:17px;margin:0;color:white}.brand 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print{.sidebar,.topbar,.no-print{display:none!important}.main{margin:0;width:100%}.content{padding:0}.panel,.invoice{box-shadow:none;border:0}.invoice{max-width:none}.app{display:block}}