:root{--spark-font: "Inter", system-ui, -apple-system, "Segoe UI", sans-serif;--spark-bg-page: #f8f9fb;--spark-bg-card: #ffffff;--spark-bg-sidebar: #ffffff;--spark-bg-inset: #f3f4f6;--spark-text-primary: #111827;--spark-text-secondary: #6b7280;--spark-text-muted: #9ca3af;--spark-border: #e5e7eb;--spark-border-strong: #d1d5db;--spark-cta: #000000;--spark-cta-text: #ffffff;--spark-cta-glow: 0 0 24px rgba(59, 130, 246, .45);--spark-accent: #3b82f6;--spark-accent-soft: #eff6ff;--spark-success: #16a34a;--spark-success-bg: #dcfce7;--spark-warning: #ea580c;--spark-warning-bg: #ffedd5;--spark-danger: #dc2626;--spark-danger-bg: #fee2e2;--spark-radius-sm: 6px;--spark-radius-md: 8px;--spark-radius-lg: 12px;--spark-radius-xl: 16px;--spark-radius-pill: 9999px;--spark-shadow-card: 0 1px 3px rgba(0, 0, 0, .08), 0 4px 12px rgba(0, 0, 0, .04);--spark-shadow-modal: 0 8px 32px rgba(0, 0, 0, .12);--spark-sidebar-width: 240px;--spark-drawer-width: 420px;--spark-transition: .2s cubic-bezier(.4, 0, .2, 1);--spark-blur-backdrop: blur(8px)}*,*:before,*:after{box-sizing:border-box}body{margin:0;font-family:var(--spark-font);background:var(--spark-bg-page);color:var(--spark-text-primary)}a{color:var(--spark-accent);text-decoration:none}.spark-sidebar{width:var(--spark-sidebar-width);background:var(--spark-bg-sidebar);border-right:1px solid var(--spark-border);min-height:100vh;padding:1.25rem 0;position:fixed;left:0;top:0}.spark-main{margin-left:var(--spark-sidebar-width);padding:2rem}.spark-logo{font-weight:700;letter-spacing:.08em;padding:0 1.25rem 1.5rem;display:flex;align-items:center;gap:.5rem}.spark-nav a{display:block;padding:.5rem 1.25rem;color:var(--spark-text-secondary);font-size:.9rem}.spark-nav a.active{background:var(--spark-accent-soft);color:var(--spark-accent);font-weight:600}.spark-card{background:var(--spark-bg-card);border-radius:var(--spark-radius-lg);box-shadow:var(--spark-shadow-card);padding:1.5rem;border:1px solid var(--spark-border)}.spark-btn-primary{background:var(--spark-cta);color:var(--spark-cta-text);border:none;border-radius:var(--spark-radius-pill);padding:.75rem 1.5rem;font-weight:600;cursor:pointer;box-shadow:var(--spark-cta-glow)}.spark-btn-ghost{background:transparent;border:1px solid var(--spark-border-strong);border-radius:var(--spark-radius-md);padding:.65rem 1.25rem;cursor:pointer}.spark-kpi-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:1rem;margin-bottom:1.5rem}.spark-kpi-value{font-size:1.5rem;font-weight:700}.spark-drawer{position:fixed;right:0;top:0;width:var(--spark-drawer-width);height:100vh;background:var(--spark-bg-card);box-shadow:var(--spark-shadow-modal);padding:1.5rem;z-index:100;transform:translate(0);transition:transform var(--spark-transition)}.spark-backdrop{position:fixed;top:0;right:0;bottom:0;left:0;background:#00000059;-webkit-backdrop-filter:var(--spark-blur-backdrop);backdrop-filter:var(--spark-blur-backdrop);z-index:99}.spark-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:1.5rem}.spark-tabs{display:flex;gap:.5rem;margin-bottom:1rem}.spark-tab{flex:1;text-align:center;padding:.75rem;border-radius:var(--spark-radius-md);background:var(--spark-bg-inset);cursor:pointer;font-size:.85rem}.spark-tab.active{background:var(--spark-cta);color:#fff}.spark-input{width:100%;padding:.65rem .75rem;border:1px solid var(--spark-border);border-radius:var(--spark-radius-md);font-size:.95rem}.spark-label{font-size:.8rem;font-weight:500;margin-bottom:.35rem;display:block}.spark-field{margin-bottom:1rem}.spark-status-paid{background:var(--spark-success-bg);color:var(--spark-success);padding:.2rem .6rem;border-radius:var(--spark-radius-pill);font-size:.75rem}.spark-status-pending{background:var(--spark-warning-bg);color:var(--spark-warning);padding:.2rem .6rem;border-radius:var(--spark-radius-pill);font-size:.75rem}.spark-checkout-wrap{max-width:960px;margin:2rem auto;display:grid;grid-template-columns:1fr 1.2fr;gap:1.5rem;padding:1rem}.spark-checkout-header{text-align:center;padding:1rem;border-bottom:1px solid var(--spark-border);background:#fff}@media (max-width: 768px){.spark-sidebar{display:none}.spark-main{margin-left:0}.spark-kpi-grid{grid-template-columns:1fr 1fr}.spark-checkout-wrap{grid-template-columns:1fr}}