:root{--bg-main: #0F172A;--bg-card: #1E293B;--bg-input: #334155;--primary: #38BDF8;--primary-hover: #0EA5E9;--accent: #10B981;--text-primary: #F8FAFC;--text-secondary: #94A3B8;--border: #334155;--border-radius: 16px;--font-family: "Outfit", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;--transition: .2s ease-in-out}*{box-sizing:border-box;margin:0;padding:0}html{overflow-y:scroll}body{font-family:var(--font-family);background-color:var(--bg-main);color:var(--text-primary);line-height:1.6;-webkit-font-smoothing:antialiased;display:flex;flex-direction:column;min-height:100dvh}.error-toast{position:fixed;top:0;left:0;right:0;z-index:9999;padding:0;max-height:0;overflow:hidden;background:linear-gradient(135deg,#ef4444,#dc2626);color:#fff;font-size:.9rem;font-weight:500;text-align:center;transition:max-height .3s ease,padding .3s ease,opacity .3s ease;opacity:0;box-shadow:0 4px 12px #ef444466}.error-toast.visible{max-height:80px;padding:12px 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3px)}.conversion-form{display:grid;grid-template-columns:1fr 1fr;gap:12px}.form-group.amount-group{grid-column:span 2}.form-group{display:flex;flex-direction:column;gap:4px}label{font-size:.8rem;font-weight:500;color:var(--text-secondary);text-transform:uppercase;letter-spacing:.5px}.conversion-form input,.conversion-form select{width:100%;height:48px;font-family:inherit;font-size:1rem;padding:0 12px;border:1px solid var(--border);border-radius:8px;background-color:var(--bg-input);color:var(--text-primary);transition:var(--transition);line-height:46px;display:block}.flatpickr-input[readonly],.flatpickr-input:not([readonly]){width:100%;height:48px;font-family:inherit;font-size:1rem;padding:0 12px;border:1px solid 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