:root{--portal-bg: #0f172a;--portal-card: #1e293b;--portal-primary: #38bdf8;--portal-accent: #818cf8;--portal-text: #f1f5f9;--portal-text-muted: #94a3b8}.portal-layout{min-height:100vh;background:var(--portal-bg);color:var(--portal-text);font-family:Inter,sans-serif;display:flex;flex-direction:column;padding-bottom:70px;max-width:100vw;overflow-x:hidden;box-sizing:border-box}.portal-modal-overlay{position:fixed;top:0;left:0;right:0;bottom:0;background:#000000d9;display:flex;align-items:center;justify-content:center;z-index:1000;padding:1rem;-webkit-backdrop-filter:blur(5px);backdrop-filter:blur(5px)}.portal-modal-content{background:var(--portal-bg);border-radius:20px;width:100%;max-width:600px;max-height:90vh;display:flex;flex-direction:column;border:1px solid rgba(255,255,255,.1);box-shadow:0 25px 50px -12px #00000080}.portal-modal-header{padding:1.25rem 1.5rem;border-bottom:1px solid rgba(255,255,255,.05);display:flex;justify-content:space-between;align-items:center}.portal-modal-body{padding:1.5rem;overflow-y:auto}.portal-modal-footer{padding:1.25rem 1.5rem;border-top:1px solid rgba(255,255,255,.05)}.invoice-modal{max-width:800px}.invoice-preview{background:#fff;color:#1a1a1a;border-radius:12px;padding:1.5rem}@media (min-width: 768px){.invoice-preview{padding:3rem}}.invoice-header-grid{display:flex;flex-direction:column;gap:1.5rem;margin-bottom:2rem}@media (min-width: 640px){.invoice-header-grid{flex-direction:row;justify-content:space-between;align-items:flex-start}.invoice-header-grid .meta{text-align:right}}.invoice-title{font-size:2rem;font-weight:900;color:#000;line-height:1;margin-bottom:.5rem}.meta-details p{margin:.25rem 0;font-size:.875rem;color:#64748b}.meta-details span{width:50px;display:inline-block}.invoice-items-container{margin:1.5rem 0}.items-header{display:grid;grid-template-columns:2fr 1fr 80px 1fr;padding:.75rem 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1.5rem;border-radius:10px;font-weight:700;cursor:pointer;display:flex;align-items:center;justify-content:center;gap:.5rem;transition:all .2s}.portal-btn-secondary{background:#ffffff0d;color:#fff;border:1px solid rgba(255,255,255,.1);padding:.75rem 1.5rem;border-radius:10px;font-weight:600;cursor:pointer;display:flex;align-items:center;justify-content:center;gap:.5rem;transition:all .2s}.portal-btn-primary:hover{transform:translateY(-2px);filter:brightness(1.1)}.portal-btn-secondary:hover{background:#ffffff1a}@media 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